CN112935759A - Method for assembling gear of finishing mill cone box - Google Patents
Method for assembling gear of finishing mill cone box Download PDFInfo
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- CN112935759A CN112935759A CN202110142715.0A CN202110142715A CN112935759A CN 112935759 A CN112935759 A CN 112935759A CN 202110142715 A CN202110142715 A CN 202110142715A CN 112935759 A CN112935759 A CN 112935759A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
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Abstract
The invention provides a finishing mill cone box gear assembling method, which belongs to the technical field of high-speed wire finishing mill adjustment and comprises the steps of installing a cone box upper cover and a cone box body, installing a first adjusting gasket group and a second adjusting gasket group, smearing coloring agents, finally assembling and the like. When the cone box of the finishing mill is installed, whether the installation positions of the upper cover of the cone box and the cone box body are accurate or not can be calibrated by detecting the installation holes of the longitudinal shaft, the installation accuracy of the longitudinal shaft and the bevel teeth of the longitudinal shaft is ensured, then a first adjusting gasket group and a second adjusting gasket group are respectively installed at the adjusting ends of the bevel teeth of the longitudinal shaft and the bevel teeth of the bevel shaft, a mixture of a coloring agent and a coloring solvent is coated on the bevel teeth of the bevel shaft, and whether the meshing between the bevel teeth of the longitudinal shaft and the bevel teeth of the bevel shaft is accurate and in place or not is judged by observing the coloring condition on the surface of the bevel teeth of the longitudinal shaft, so that the assembly of the cone box gear of the finishing mill is more accurate and more convenient.
Description
Technical Field
The invention belongs to the technical field of adjustment of a high-speed wire finishing mill, and particularly relates to a method for assembling a gear of a conical box of the finishing mill.
Background
When the finishing mill is used for daily inspection and maintenance, the cone box of the finishing mill needs to be disassembled and then installed, wherein whether the installation of the bevel gear of the longitudinal shaft and the bevel gear of the conical shaft in the finishing mill cone box is accurate or not plays an important role in the integral stability and long-period operation of the finishing mill cone box. At present, gaskets can only be preassembled on the adjusting sides of a longitudinal shaft and a conical shaft of a conical box through the experience of an assembling worker in the assembling process, the thicknesses of the gaskets preassembled by different workers are different, so that great assembling difference is caused, the control of the coloring positions of two gears is also determined according to the experience of operating workers, the adjusting method of each person is different, so that the assembling difference is caused, the coloring positions of the gears are difficult to control at a more ideal position, therefore, the conical box of the finishing mill is frequently subjected to offline in a short period after being used online, the vibration is high, the sound is not good, the matching condition with the roller box is not good, serious equipment accidents such as tooth beating, tooth surface gluing and the like can be caused seriously, the stable operation of the equipment is influenced, the conical box of the finishing mill needs to be disassembled again for adjustment, and the maintenance difficulty and the maintenance cost are increased.
Disclosure of Invention
The invention aims to provide a method for assembling a bevel gear box of a finishing mill, and aims to solve the problem that the stable operation of equipment is influenced due to the difficulty in assembling and adjusting the bevel gear box of the finishing mill in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the method for assembling the bevel box gear of the finishing mill comprises the following steps:
step a: positioning and installing a cone box upper cover of a finishing mill at the opening of a cone box body, detecting the size of a longitudinal shaft installation hole formed by the cone box upper cover and the cone box body, readjusting the cone box upper cover and the cone box body if the detection is unqualified, and executing the next step if the detection is qualified;
step b: installing a cone shaft and cone shaft bevel gears at a designated position in a cone box of a finishing mill, installing a longitudinal shaft and longitudinal shaft bevel gears at a longitudinal shaft installation hole of the cone box of the finishing mill, preassembling a first adjusting gasket group for adjusting the horizontal position of the longitudinal shaft at the adjustable side of the longitudinal shaft, and preassembling a second gasket group at the adjustable side of the cone shaft;
step c: mixing a colorant and a coloring solvent, uniformly coating the obtained mixture on the surface of the bevel shaft bevel gear, rotating to enable the mixture on the bevel shaft bevel gear to be adhered to the surface of the bevel shaft bevel gear, and adjusting the relative position of the bevel shaft bevel gear and the bevel shaft bevel gear according to the coloring position and area of the mixture on the surface of the bevel shaft gear;
and d, when the coloring area of the mixture on the surface of the bevel gear with the longitudinal axis is matched with the contact area of the bevel gear with the bevel shaft, installing the rest parts on the finishing mill in place to finish the assembly of the bevel gear box.
As another embodiment of the present application, the method for adjusting the relative positions of the longitudinal axis bevel and the bevel axis bevel comprises the following steps:
when the coloring position of the longitudinal axis bevel gear is that one side of a single gear is close to the small end of the bevel axis bevel gear, the other side of the single gear is close to the large end of the bevel axis bevel gear, and the coloring position is close to the tooth root, the thickness of the first adjusting gasket group is increased at the adjusting end of the longitudinal axis, so that the longitudinal axis and the longitudinal axis bevel gear move towards the large end of the longitudinal axis bevel gear, meanwhile, the thickness of the second adjusting gasket group at the adjusting end of the bevel axis is reduced, and the distance between the bevel axis bevel gear and the longitudinal axis is increased;
when the coloring position of the longitudinal axis bevel gear is a large end, one side of a single gear is close to the coloring of the small end collar side of the bevel axis bevel gear, and the coloring position is close to the tooth crest, the thickness of the first adjusting gasket group is reduced at the adjusting end of the longitudinal axis, so that the longitudinal axis and the longitudinal axis bevel gear move towards the small end direction of the longitudinal axis bevel gear, meanwhile, the thickness of the second adjusting gasket group at the adjusting end of the bevel axis is increased, and the distance between the bevel axis bevel gear and the longitudinal axis is reduced;
when the coloring position of the longitudinal axis bevel gear is positioned on the same side of the single gear and the coloring position is deviated from the gear heel to the tooth top direction, measuring the horizontal position of the longitudinal axis by using an instrument and readjusting the installation position of the longitudinal axis;
when the coloring position of the vertical axis bevel gear is positioned on the same side of the single gear and the coloring position is deviated from the gear tooth top to the gear tooth heel direction, the thickness of the second adjusting gasket group is increased at the adjusting end of the cone shaft, the distance between the cone shaft bevel gear and the vertical axis is reduced, then the mixture is newly coated on the cone shaft bevel gear and the judgment is carried out again according to the coloring condition of the vertical axis bevel gear, if the coloring position is still deviated from the gear tooth top to the gear tooth heel direction, the thickness of the second adjusting gasket group is continuously increased, and if the coloring position is deviated from the gear tooth heel to the gear tooth top direction, the thickness of the second adjusting gasket group is reduced. .
As another embodiment of the present application, the total thickness of the first adjustment pad set and the second adjustment pad set is 3mm, the first adjustment pad set and the second adjustment pad set are both composed of a plurality of adjustment pads, and the thickness of each adjustment pad is 0.05 mm.
As another embodiment of the present application, the thickness of each increase or decrease of the first adjustment gasket set and the second adjustment gasket set is 0.05 mm.
As another embodiment of the present application, in the step of mixing the colorant and the coloring solvent, the weight ratio of the colorant to the coloring solvent is 1:8 to 1: 6.
as another embodiment of the present application, the positioning and installing the upper cover of the cone box of the finishing mill to the mouth of the cone box body comprises the following steps:
placing the upper cover of the cone box at the opening of the box body of the cone box, pre-fastening the upper cover of the cone box and the box body of the cone box by using a fastener, and ensuring that the upper cover of the cone box and the box body of the cone box can slide relatively;
knocking the side surface of the upper cover of the cone box to ensure that the axis of a positioning pin hole on the upper cover of the cone box is superposed with the axis of a positioning pin hole on the box body of the cone box, and inserting a positioning pin into the positioning pin holes on the upper cover of the cone box and the box body of the cone box;
and (4) screwing the fastener, and completely fixing the upper cover of the cone box and the box body of the cone box.
As another embodiment of the present application, the readjusting the upper cover and the body of the cone box comprises the following steps:
pulling out the positioning pin from the positioning pin hole, and removing the upper cover of the cone box from the cone box body;
and (3) respectively carrying out positioning correction on the positioning pin hole on the upper cover of the cone box and the positioning pin hole on the box body of the cone box by using numerical control machining equipment, and reinstalling the upper cover of the cone box and the box body of the cone box in place after the positioning correction.
As another embodiment of the present application, in the step of detecting the size of the longitudinal axis mounting hole formed by the conical box upper cover and the conical box body, the detected position is the horizontal diameter size of the longitudinal axis mounting hole and the vertical diameter size of the longitudinal axis mounting hole.
As another embodiment of the present application, the difference between the horizontal diameter dimension and the vertical diameter dimension and the standard dimension is between 0 and + 0.029.
As another embodiment of the present application, the colorant is lead oxide powder, and the coloring solvent is liquid grease.
The assembly method of the gear of the finishing mill cone box provided by the invention has the beneficial effects that: compared with the prior art, the method comprises the steps of positioning and installing the upper conical box cover of the finishing mill to the opening of the conical box body, and detecting the size of a longitudinal shaft installation hole formed by the upper conical box cover and the conical box body; the method comprises the steps of installing a conical shaft and conical shaft bevel gears at specified positions in a conical box of a finishing mill, installing a longitudinal shaft and longitudinal shaft bevel gears at a longitudinal shaft installation hole of the conical box of the finishing mill, pre-installing a first adjusting gasket group at the adjustable side of the longitudinal shaft, and pre-installing a second gasket group at the adjustable side of the conical shaft. Mixing a colorant and a coloring solvent, uniformly coating the obtained mixture on the surface of the bevel shaft bevel gear, rotating to enable the mixture on the bevel shaft bevel gear to be adhered to the surface of the bevel shaft bevel gear, and adjusting the relative position of the bevel shaft bevel gear and the bevel shaft bevel gear according to the coloring position and area of the mixture on the surface of the bevel shaft gear; and when the coloring area of the mixture on the surface of the bevel gear with the longitudinal axis is matched with the contact area of the bevel gear with the bevel shaft, installing the rest parts on the finishing mill in place to finish the assembly of the bevel box gear. When the cone box of the finishing mill is installed, firstly, whether the installation positions of an upper cover of the cone box and a box body of the cone box are accurate can be calibrated through detecting the installation holes of the longitudinal shaft, the installation accuracy of the longitudinal shaft and the bevel gear of the longitudinal shaft is ensured, secondly, a first adjusting gasket group and a second adjusting gasket group are respectively installed at the adjusting ends of the bevel gear of the longitudinal shaft and the bevel gear of the cone shaft, a mixture of a coloring agent and a coloring solvent is coated on the bevel gear of the cone shaft, whether the meshing between the bevel gear of the longitudinal shaft and the bevel gear of the cone shaft is accurate and in place is judged through observing the coloring condition on the surface of the bevel gear of the longitudinal shaft, and the thicknesses of the first adjusting gasket group and the second adjusting gasket group are increased or reduced according to the coloring condition to conveniently adjust the positions of the bevel gear of the longitudinal shaft and the bevel gear of the cone shaft, so that the assembly of the cone box of the finishing mill.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a finishing mill cone box according to an embodiment of the present invention;
FIG. 2 is a first schematic view of a partial structure of a finishing mill cone box according to an embodiment of the present invention;
fig. 3 is a schematic partial structural diagram of a finishing mill cone box according to an embodiment of the present invention.
In the figure: 1. an upper cover of the cone box; 2. longitudinal axis bevel gear; 3. a longitudinal axis; 4. bevel shaft bevel gear; 5. a conical shaft; 6. a cone box body; 7. a second set of adjustment shims; 8. a first set of adjustment shims.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2 together, the method for assembling the bevel box gear of the finishing mill according to the present invention will now be described. The assembly method of the bevel box gear of the finishing mill comprises the following steps:
step a: positioning and installing the upper cover 1 of the conical box of the finishing mill at the opening of the box body 6 of the conical box, detecting the size of the installation hole of the longitudinal shaft 3 formed by the upper cover 1 of the conical box and the box body 6 of the conical box, readjusting the upper cover 1 of the conical box and the box body 6 of the conical box if the detection is unqualified, and executing the next step if the detection is qualified.
Step b: the method comprises the steps of installing a conical shaft 5 and conical shaft bevel gears 4 at specified positions in a conical box of a finishing mill, installing a longitudinal shaft 3 and longitudinal shaft bevel gears 2 at installation holes of the longitudinal shaft 3 of the finishing mill conical box, pre-installing a first adjusting gasket group 8 for adjusting the horizontal position of the longitudinal shaft 3 on the adjustable side of the longitudinal shaft 3, and pre-installing a second gasket group on the adjustable side of the conical shaft 5.
Step c: mixing a colorant and a coloring solvent, uniformly coating the obtained mixture on the surface of the bevel shaft bevel gear 4, rotating to enable the mixture on the longitudinal shaft bevel gear 2 to be adhered to the surface of the longitudinal shaft bevel gear 2, and adjusting the relative position of the longitudinal shaft bevel gear 2 and the bevel shaft bevel gear 4 according to the coloring position and area of the mixture on the surface of the longitudinal shaft bevel gear 2;
and d, when the coloring area of the mixture on the surface of the longitudinal shaft bevel gear 2 is matched with the contact area of the longitudinal shaft bevel gear 2 and the bevel shaft bevel gear 4, installing the rest parts on the finishing mill in place to finish the assembly of the bevel box gear.
Compared with the prior art, the method for assembling the gear of the conical box of the finishing mill comprises the steps of positioning and installing the upper cover 1 of the conical box of the finishing mill to the opening of the box body 6 of the conical box, and detecting the size of an installation hole of a longitudinal shaft 3 formed by the upper cover 1 of the conical box and the box body 6 of the conical box; the method comprises the steps of installing a conical shaft 5 and conical shaft bevel gears 4 at designated positions in a conical box of a finishing mill, installing a longitudinal shaft 3 and longitudinal shaft bevel gears 2 at a mounting hole of the longitudinal shaft 3 of the conical box of the finishing mill, pre-installing a first adjusting gasket group 8 at the adjustable side of the longitudinal shaft 3, and pre-installing a second gasket group at the adjustable side of the conical shaft 5. Mixing a colorant and a coloring solvent, uniformly coating the obtained mixture on the surface of the bevel shaft bevel gear 4, rotating to enable the mixture on the longitudinal shaft bevel gear 2 to be adhered to the surface of the longitudinal shaft bevel gear 2, and adjusting the relative position of the longitudinal shaft bevel gear 2 and the bevel shaft bevel gear 4 according to the coloring position and area of the mixture on the surface of the longitudinal shaft bevel gear 2; when the coloring area of the mixture on the surface of the longitudinal shaft bevel gear 2 is matched with the contact area of the longitudinal shaft bevel gear 2 and the bevel shaft bevel gear 4, the rest parts on the finishing mill are installed in place, and the assembly of the bevel box gear is completed. The invention relates to a method for assembling a gear of a conical box of a finishing mill, which can calibrate whether the mounting positions of an upper cover 1 of the conical box and a box body 6 of the conical box are accurate or not by detecting the mounting holes of a longitudinal shaft 3 when the conical box of the finishing mill is mounted, ensures the mounting accuracy of the longitudinal shaft 3 and the bevel gear 2 of the longitudinal shaft, secondly, a first adjusting gasket group 8 and a second adjusting gasket group 7 are respectively arranged at the adjusting ends of the longitudinal axis bevel gear 2 and the conical axis bevel gear 4, a mixture of a coloring agent and a coloring solvent is smeared on the conical axis bevel gear 4, whether the longitudinal axis bevel gear 2 is meshed with the bevel axis bevel gear 4 accurately or not is judged by observing the coloring condition on the surface of the longitudinal axis bevel gear 2, and the thicknesses of the first adjusting gasket group 8 and the second adjusting gasket group 7 are increased or reduced according to the coloring condition to conveniently adjust the positions of the longitudinal shaft bevel gear 2 and the bevel shaft bevel gear 4, so that the assembly of the finishing mill bevel box gear is more accurately adjusted.
Referring to fig. 1 and 2 together, as a specific embodiment of the method for assembling a bevel gear of a finishing mill bevel box according to the present invention, the method for adjusting the relative positions of the vertical axis bevel gear 2 and the bevel axis bevel gear 4 includes the following steps:
when the coloring position of the longitudinal axis bevel gear 2 is that one side of a single gear is close to the small end of the bevel axis bevel gear 4, the other side of the single gear is close to the large end of the bevel axis bevel gear 4, and the coloring position is close to the tooth root, the coloring on the longitudinal axis bevel gear 2 is two point positions distributed on the single gear, the thickness of the first adjusting gasket group 8 is increased at the adjusting end of the longitudinal axis 3, so that the longitudinal axis 3 and the longitudinal axis bevel gear 2 move towards the direction of the large end of the longitudinal axis bevel gear 2, meanwhile, the thickness of the second adjusting gasket group 7 at the adjusting end of the bevel axis 5 is reduced, and the distance between the bevel axis bevel gear 4 and the longitudinal axis;
when the coloring position of the vertical axis bevel gear 2 is a large end with one side of a single gear close to the coloring of the small end collar side of the bevel axis bevel gear 4 and the coloring position is close to the tooth crest, the thickness of the first adjusting gasket group 8 is reduced at the adjusting end of the vertical axis 3, so that the vertical axis 3 and the vertical axis bevel gear 2 move towards the small end direction of the vertical axis bevel gear 2, meanwhile, the thickness of the second adjusting gasket group 7 at the adjusting end of the bevel axis 5 is increased, and the distance between the bevel axis bevel gear 4 and the vertical axis 3 is reduced;
when the coloring position of the longitudinal shaft bevel gear 2 is positioned on the same side of a single gear and the coloring position is deviated from the gear heel to the tooth top direction, measuring the horizontal position of the longitudinal shaft 3 by using an instrument, and readjusting the installation position of the longitudinal shaft 3;
when the coloring position of the vertical axis bevel gear 2 is positioned on the same side of a single gear and the coloring position is deviated from the tooth top to the tooth heel direction, the thickness of a second adjusting gasket group 7 is increased at the adjusting end of the bevel shaft 5, the distance between the bevel shaft bevel gear 4 and the vertical axis 3 is reduced, then the mixture is newly coated on the bevel shaft bevel gear 4 and the judgment is carried out again according to the coloring condition of the vertical axis bevel gear 2, if the coloring position is still deviated from the tooth top to the tooth heel direction, the thickness of the second adjusting gasket group 7 is continuously increased, and if the coloring position is deviated from the tooth heel to the tooth top direction, the thickness of the second adjusting gasket group 7 is reduced.
As a specific embodiment of the method for assembling a bevel box gear of a finishing mill provided by the present invention, please refer to fig. 1 and 2, the total thickness of the first adjusting shim set 8 and the second adjusting shim set 7 is 3mm, the first adjusting shim set 8 and the second adjusting shim set 7 are both composed of a plurality of adjusting shims, and the thickness of the adjusting shims is 0.05 mm. The 3mm first adjusting shim group 8 and the second adjusting shim group 7 are obtained according to multiple adjusting tests, and can completely meet the maximum adjusting range and the minimum adjusting range of the longitudinal shaft 3 and the conical shaft 5. The thickness of the adjusting shim is 0.05mm, so that the unit of minimum increase or decrease in the thickness of the first adjusting shim set 8 and the second adjusting shim set 7 is 0.05mm, and the adjusting efficiency and speed of the first adjusting shim set 8 and the second adjusting shim set 7 are considered.
Referring to fig. 1 and 2, as an embodiment of the method for assembling a bevel box gear of a finishing mill, the thickness of each of the first adjusting shim set 8 and the second adjusting shim set 7 is 0.05 mm. The efficiency and speed of the first adjusting shim set 8 and the second adjusting shim set 7 are considered.
Referring to fig. 1 and 2, in the step of mixing the colorant and the coloring solvent, the weight ratio of the colorant to the coloring solvent is 1:10 to 1: 6. preferably, the mixing ratio of the coloring agent to the coloring solvent is 1:8, and the ratio of the coloring agent to the coloring solvent can ensure the fluidity of the mixture, so that the coloring agent is more convenient to apply.
Referring to fig. 1 and 2, as a specific embodiment of the method for assembling a gear of a conical box of a finishing mill, positioning and installing an upper cover 1 of the conical box of the finishing mill to an opening of a box body 6 of the conical box comprises the following steps:
placing the cone box upper cover 1 at the opening of the cone box body 6, pre-fastening the cone box upper cover 1 and the cone box body 6 by using a fastener, and ensuring that the cone box upper cover 1 and the cone box body 6 can slide relatively;
knocking the side surface of the upper cover 1 of the cone box to ensure that the axis of a positioning pin hole on the upper cover 1 of the cone box coincides with the axis of a positioning pin hole on the box body 6 of the cone box, and inserting a positioning pin into the positioning pin holes on the upper cover 1 of the cone box and the box body 6 of the cone box;
and (4) tightening the fastener to completely fix the cone box upper cover 1 and the cone box body 6.
Referring to fig. 1 and 2, as a specific embodiment of the method for assembling a gear of a bevel box of a finishing mill, readjusting the upper cover 1 of the bevel box and the box body 6 of the bevel box includes the following steps:
pulling out the positioning pin from the positioning pin hole, and detaching the upper cover 1 of the cone box from the cone box body 6;
and (3) respectively carrying out positioning correction on the positioning pin hole on the cone box upper cover 1 and the positioning pin hole on the cone box body 6 by using numerical control machining equipment, and reinstalling the cone box upper cover 1 and the cone box body 6 in place after the positioning correction.
When numerical control equipment is used for machining, firstly, alignment and tool setting are carried out through a datum on the upper cover 1 of the conical box or the box body 6 of the conical box, then the positioning pin hole is repositioned and machined through the program point position, if the deviation is too large during machining, the old positioning pin hole can be expanded into a pin plugging hole, the pin plugging hole is filled after the pin plug is installed in the pin plugging hole, and the positioning pin hole is machined again at the pin plugging position, so that the machining accuracy of the position of the positioning pin hole is ensured.
Referring to fig. 1 and 2, in the step of detecting the size of the mounting hole of the longitudinal shaft 3 formed by the upper cover 1 and the body 6 of the conical box, the detected positions are the horizontal diameter size of the mounting hole of the longitudinal shaft 3 and the vertical diameter size of the mounting hole of the longitudinal shaft 3. In the embodiment, the conical box upper cover 1 and the conical box body 6 are two independent parts which need to be assembled into a whole through bolt connection, the two sides of the conical box upper cover 1 are provided with the semicircular holes and the semicircular holes on the two sides of the conical box body 6 form a complete longitudinal axis 3 mounting hole, the longitudinal axis 3 mounting hole is the mounting position of the longitudinal axis 3, the horizontal diameter size and the vertical diameter size of the longitudinal axis 3 mounting hole are calibrated to ensure the mounting precision and the mounting accuracy of the longitudinal axis 3,
as a specific embodiment of the method for assembling a bevel box gear of a finishing mill according to the present invention, referring to fig. 1, a difference between a horizontal diameter dimension and a vertical diameter dimension and a standard dimension is 0 to + 0.029. The standard size is the theoretical diameter size numerical value of the mounting hole of the longitudinal shaft 3, the difference value is ensured by the horizontal diameter size and the vertical diameter size, the mounting precision of the longitudinal shaft 3 can be effectively ensured, and the assembly position is more accurate.
Referring to fig. 1, a colorant is lead oxide powder, and a coloring solvent is liquid grease. Lead oxide is mixed with liquid grease, so that the smearing effect of lead oxide is better, and the coloring effect of the two gears is better.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for assembling a gear of a bevel box of a finishing mill is characterized by comprising the following steps:
step a: positioning and installing a cone box upper cover of a finishing mill at the opening of a cone box body, detecting the size of a longitudinal shaft installation hole formed by the cone box upper cover and the cone box body, readjusting the cone box upper cover and the cone box body if the detection is unqualified, and executing the next step if the detection is qualified;
step b: installing a cone shaft and cone shaft bevel gears at a designated position in a cone box of a finishing mill, installing a longitudinal shaft and longitudinal shaft bevel gears at a longitudinal shaft installation hole of the cone box of the finishing mill, preassembling a first adjusting gasket group for adjusting the horizontal position of the longitudinal shaft at the adjustable side of the longitudinal shaft, and preassembling a second gasket group at the adjustable side of the cone shaft;
step c: mixing a colorant and a coloring solvent, uniformly coating the obtained mixture on the surface of the bevel shaft bevel gear, rotating to enable the mixture on the bevel shaft bevel gear to be adhered to the surface of the bevel shaft bevel gear, and adjusting the relative position of the bevel shaft bevel gear and the bevel shaft bevel gear according to the coloring position and area of the mixture on the surface of the bevel shaft gear;
and d, when the coloring area of the mixture on the surface of the bevel gear with the longitudinal axis is matched with the contact area of the bevel gear with the bevel shaft, installing the rest parts on the finishing mill in place to finish the assembly of the bevel gear box.
2. The finishing mill bevel box gear assembly method as recited in claim 1 wherein the method of adjusting the relative position of the longitudinal axis bevel and bevel axis bevel comprises the steps of:
when the coloring position of the longitudinal axis bevel gear is that one side of a single gear is close to the small end of the bevel axis bevel gear, the other side of the single gear is close to the large end of the bevel axis bevel gear, and the coloring position is close to the tooth root, the thickness of the first adjusting gasket group is increased at the adjusting end of the longitudinal axis, so that the longitudinal axis and the longitudinal axis bevel gear move towards the large end of the longitudinal axis bevel gear, meanwhile, the thickness of the second adjusting gasket group at the adjusting end of the bevel axis is reduced, and the distance between the bevel axis bevel gear and the longitudinal axis is increased;
when the coloring position of the longitudinal axis bevel gear is a large end, one side of a single gear is close to the coloring of the small end collar side of the bevel axis bevel gear, and the coloring position is close to the tooth crest, the thickness of the first adjusting gasket group is reduced at the adjusting end of the longitudinal axis, so that the longitudinal axis and the longitudinal axis bevel gear move towards the small end direction of the longitudinal axis bevel gear, meanwhile, the thickness of the second adjusting gasket group at the adjusting end of the bevel axis is increased, and the distance between the bevel axis bevel gear and the longitudinal axis is reduced;
when the coloring position of the longitudinal axis bevel gear is positioned on the same side of the single gear and the coloring position is deviated from the gear heel to the tooth top direction, measuring the horizontal position of the longitudinal axis by using an instrument and readjusting the installation position of the longitudinal axis;
when the coloring position of the vertical axis bevel gear is positioned on the same side of the single gear and the coloring position is deviated from the gear tooth top to the gear tooth heel direction, the thickness of the second adjusting gasket group is increased at the adjusting end of the cone shaft, the distance between the cone shaft bevel gear and the vertical axis is reduced, then the mixture is newly coated on the cone shaft bevel gear and the judgment is carried out again according to the coloring condition of the vertical axis bevel gear, if the coloring position is still deviated from the gear tooth top to the gear tooth heel direction, the thickness of the second adjusting gasket group is continuously increased, and if the coloring position is deviated from the gear tooth heel to the gear tooth top direction, the thickness of the second adjusting gasket group is reduced.
3. The method for assembling a bevel box gear of a finishing mill according to claim 2, wherein the total thickness of the first adjusting shim group and the second adjusting shim group is 3mm, the first adjusting shim group and the second adjusting shim group are both composed of a plurality of adjusting shims, and the thickness of each adjusting shim is 0.05 mm.
4. The finishing mill bevel box gear assembly method of claim 3 wherein said first set of adjustment shims and said second set of adjustment shims are 0.05mm thick, either increasing or decreasing, each time.
5. The finishing mill bevel box gear assembly method according to claim 1 wherein in the step of mixing the colorant and the coloring solvent, the weight ratio of the colorant to the coloring solvent is 1:8 to 1: 6.
6. the method of assembling a finishing mill bevel box gear according to claim 1 wherein said positioning a finishing mill bevel box cover to the mouth of the bevel box housing comprises the steps of:
placing the upper cover of the cone box at the opening of the box body of the cone box, pre-fastening the upper cover of the cone box and the box body of the cone box by using a fastener, and ensuring that the upper cover of the cone box and the box body of the cone box can slide relatively;
knocking the side surface of the upper cover of the cone box to ensure that the axis of a positioning pin hole on the upper cover of the cone box is superposed with the axis of a positioning pin hole on the box body of the cone box, and inserting a positioning pin into the positioning pin holes on the upper cover of the cone box and the box body of the cone box;
and (4) screwing the fastener, and completely fixing the upper cover of the cone box and the box body of the cone box.
7. The method of assembling a finishing mill bevel box gear according to claim 6 wherein said readjusting the bevel box top cover and the bevel box body comprises the steps of:
pulling out the positioning pin from the positioning pin hole, and removing the upper cover of the cone box from the cone box body;
and (3) respectively carrying out positioning correction on the positioning pin hole on the upper cover of the cone box and the positioning pin hole on the box body of the cone box by using numerical control machining equipment, and reinstalling the upper cover of the cone box and the box body of the cone box in place after the positioning correction.
8. The method for assembling a bevel box gear of a finishing mill according to claim 1, wherein in the step of detecting the size of the longitudinal shaft mounting hole formed by the upper cover of the bevel box and the box body of the bevel box, the detected positions are the horizontal diameter size of the longitudinal shaft mounting hole and the vertical diameter size of the longitudinal shaft mounting hole.
9. The finishing mill bevel box gear assembly method as set forth in claim 8 wherein the difference between the horizontal diameter dimension and the vertical diameter dimension and the standard dimension is between 0 and + 0.029.
10. The method of assembling a finishing mill bevel box gear according to any one of claims 1 to 9 wherein said colorant is lead oxide powder and said coloring solvent is liquid grease.
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