CN214399613U - Overweight-preventing protection device suitable for winch - Google Patents
Overweight-preventing protection device suitable for winch Download PDFInfo
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- CN214399613U CN214399613U CN202022995863.0U CN202022995863U CN214399613U CN 214399613 U CN214399613 U CN 214399613U CN 202022995863 U CN202022995863 U CN 202022995863U CN 214399613 U CN214399613 U CN 214399613U
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Abstract
An overweight prevention protection device suitable for a winch comprises a material loading platform, side coamings, a hanging rod, a PLC, a warning light and a weight measuring part; the side surrounding plate is cylindrical, the material loading platform is a square plate, the outer diameter of the cylinder of the side surrounding plate is equal to the side length of the square of the upper end surface of the material loading platform, and the side surrounding plate is arranged on the upper end surface of the material loading platform in the middle; the warning lamp is arranged on the side wall of the material carrying platform; the hanging rod is arranged on the upper end surface of the side wall plate; the weight measuring part is arranged on the lower end face of the material carrying platform. The utility model provides the high fail safe nature of hoist engine has avoided overweight drawing to rise effectively.
Description
Technical Field
The utility model relates to a protection device, especially a prevent overweight protection device suitable for hoist engine belongs to hoist engine equipment technical field.
Background
The hoist is a light and small hoisting device for hoisting or pulling heavy objects by winding a steel wire rope or a chain by using a winding drum, is widely applied to various industries, and can be used for vertically hoisting or obliquely dragging heavy objects; compared with other types of hoisting devices, the winch has the advantages of light weight, low cost, simplicity in operation and the like, and is widely applied; however, in practical use, because a worker neglects whether the self weight of the heavy object to be towed is within the towing strength range of the winch, the heavy object is directly hung at one end of a steel wire rope or a chain of the winch, and the winch is started to lift, so that potential safety hazards are caused; if the weight of the heavy object exceeds the self-bearable weight of the winch, the winch is very easy to break down to cause the stagnation of the traction operation in the traction process, and even the accident that the heavy object falls down and is damaged or the worker is injured by smashing due to the breakage of a steel wire rope or a chain can occur; in order to avoid the above problems, an overweight prevention protection device is needed to ensure that the heavy object pulled by the winch does not exceed the load of the winch.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a prevent overweight protection device suitable for hoist engine, and it can ensure that the heavy object weight that the hoist engine was towed does not surpass the load of hoist engine.
The problem is solved through following technical scheme:
an overweight prevention protection device suitable for a winch comprises a material loading platform, side coamings, a hanging rod, a PLC, a warning light and a weight measuring part; the side surrounding plate is cylindrical, the material loading platform is a square plate, the outer diameter of the cylinder of the side surrounding plate is equal to the side length of the square of the upper end surface of the material loading platform, and the side surrounding plate is arranged on the upper end surface of the material loading platform in the middle; the warning lamp is arranged on the side wall of the material carrying platform; the hanging rod is arranged on the upper end surface of the side wall plate; the weight measuring part is arranged on the lower end face of the material carrying platform; the weight measuring part comprises a guide rod, a spring, a limiting block, a screw, a nut, a bottom plate and a touch force sensor; the bottom plate is a square plate, and the side length of the square is the same as that of the square of the material loading table; four corners of the upper end surface of the bottom plate are fixedly connected with guide rods, and the axial leads of the guide rods are in a vertical direction; through holes are formed in the four corners of the material loading platform in the vertical direction, and four guide rods on the bottom plate penetrate through the corresponding through holes in the material loading platform respectively; the limiting block is fixedly arranged at the upper end of the guide rod and is positioned above the material carrying platform; the upper end of the spring is fixedly connected with the center of the lower end face of the material loading platform, and the lower end of the spring is fixedly connected with the center of the upper end face of the bottom plate; one corner of the material loading platform is provided with a threaded hole in the vertical direction, and the threaded rod penetrates through the threaded hole to form threaded fit; the outer wall of the screw is provided with scale marks at equal intervals along the axial lead direction; the nut is sleeved on the screw rod and is positioned above the material loading platform; the touch force sensor is arranged on the lower end face of the screw; the signal output end of the PLC is connected with the signal control end of the warning lamp; and the signal output end of the touch force sensor is connected with the signal input end of the PLC.
According to the overweight prevention protection device suitable for the winch, the distance between the lower end face of the limiting block and the lower end face of the guide rod minus the thickness of the material loading platform is equal to the initial length of the spring.
Above-mentioned prevent overweight protection device suitable for hoist engine, the spring is compression spring, and its shape is cylindrical.
The utility model discloses a weight measurement part is measured effectively and is waited to promote the goods, ensures that the goods weight that the hoist was towed does not surpass the pulling force that its load and wire rope can bear, has improved the fail safe nature who pulls the operation greatly, has practiced thrift manufacturing cost, has avoided economic loss because of overweight leading to the fact in the past.
Drawings
Fig. 1 is a schematic view of the three-dimensional structure of the present invention.
The list of labels in the figure is: 1. the device comprises a material carrying table, 2. side enclosing plates, 3. hanging rods, 4. warning lamps, 5. guide rods, 6. springs, 7. limiting blocks, 8. screw rods, 9. nuts, 10. bottom plates and 11. touch force sensors.
Detailed Description
Referring to fig. 1, the utility model comprises a material loading platform 1, a side wall board 2, a hanging rod 3, a PLC, a warning light 4 and a weight measuring part; the material carrying platform 1 is used for carrying goods; the side coaming 2 and the material loading platform 1 are enclosed into a semi-closed bin body for better carrying materials and avoiding the materials from falling off in the transportation process; the hanging rod 3 is used for being matched with a hook at one end of a steel wire rope of a winch, and the winch lifts the hanging rod 3 through the hook so as to pull up the goods; the warning lamp 4 is used for prompting whether the weight is overweight; the weight measuring part is used for detecting whether the goods are overweight; the side surrounding plate 2 is cylindrical, the material loading platform 1 is a square plate, the outer diameter of the cylinder of the side surrounding plate 2 is equal to the side length of the square of the upper end surface of the material loading platform 1, and the side surrounding plate 2 is arranged on the upper end surface of the material loading platform 1 in the middle; the warning lamp 4 is arranged on the side wall of the material carrying platform 1; the hanging rod 3 is arranged on the upper end face of the side coaming 2; the weight measuring part is arranged on the lower end face of the material carrying platform 1.
The weight measuring part comprises a guide rod 5, a spring 6, a limiting block 7, a screw 8, a nut 9, a bottom plate 10 and a touch force sensor 11; the bottom plate 10 is a square plate, and the side length of the square is the same as that of the square of the material loading platform 1; four corners of the upper end surface of the bottom plate 10 are fixedly connected with guide rods 5, and the axial leads of the guide rods 5 are in a vertical direction; through holes are formed in the four corners of the material loading platform 1 in the vertical direction, and four guide rods 5 on the bottom plate 10 penetrate through the corresponding through holes in the material loading platform 1 respectively; the guide rod 5 plays a guiding role, and when the bottom plate 10 moves up and down, the guide rod 5 can ensure that the bottom plate 10 does not deflect laterally in the up-and-down movement process; the limiting block 7 is fixedly arranged at the upper end of the guide rod 5, and the limiting block 7 is positioned above the material loading platform 1; the limiting block 7 is used for preventing the guide rod 5 from separating from the material carrying platform 1; the upper end of the spring 6 is fixedly connected with the center of the lower end face of the material loading platform 1, and the lower end of the spring 6 is fixedly connected with the center of the upper end face of the bottom plate 10; one corner of the material loading platform 1 is provided with a threaded hole in the vertical direction, and the threaded rod 8 penetrates through the threaded hole to form threaded fit; the outer wall of the screw rod 8 is provided with scale marks at equal intervals along the axial lead direction; the nut 9 is sleeved on the screw 8, and the nut 9 is positioned above the material loading platform 1; the touch force sensor 11 is arranged on the lower end face of the screw 8; the signal output end of the PLC is connected with the signal control end of the warning lamp 4; the signal output end of the touch force sensor 11 is connected with the signal input end of the PLC; since the elastic force of the spring 6 is proportional to the length of the deformation, when the goods press down the spring 6 to be deformed, the length of the deformation of the spring 6 is proportional to the weight of the goods; according to the load that the hoist engine can bear, thereby calculate the spring deformation volume with its load as the power of spring 6 again, through the vertical height of adjustment screw 8, adjust the distance between the bottom of screw 8 and bottom plate 10 up end into above-mentioned spring deformation volume, if the load weight is greater than the load limit of hoist engine, the goods can push down the material platform 1 of carrying until the screw 8 bottom also is touch force sensor 11 touches the end, and trigger signal transmits PLC, and PLC control warning light 4 dodges the red light, and the suggestion staff is overweight.
The distance between the lower end face of the limiting block 7 and the lower end face of the guide rod 5 minus the thickness of the material loading platform 1 is equal to the initial length of the spring 6; this ensures that the spring 6 is in an initial state when no weight is present on the loading platform 1, thereby improving the weighing accuracy of the goods to be weighed; the spring 6 is a compression spring and is cylindrical in shape.
Claims (3)
1. The utility model provides a prevent overweight protection device suitable for hoist engine which characterized in that: comprises a material carrying platform (1), a side wall plate (2), a hanging rod (3), a PLC, a warning lamp (4) and a weight measuring part; the side coaming (2) is cylindrical, the material loading platform (1) is a square plate, the outer diameter of the cylinder of the side coaming (2) is equal to the side length of the square of the upper end surface of the material loading platform (1), and the side coaming (2) is arranged in the middle of the upper end surface of the material loading platform (1); the warning lamp (4) is arranged on the side wall of the material carrying platform (1); the hanging rod (3) is arranged on the upper end face of the side coaming (2); the weight measuring part is arranged on the lower end surface of the material carrying platform (1); the weight measuring part comprises a guide rod (5), a spring (6), a limiting block (7), a screw (8), a nut (9), a bottom plate (10) and a touch force sensor (11); the bottom plate (10) is a square plate, and the side length of the square is the same as that of the square of the material loading platform (1); four corners of the upper end surface of the bottom plate (10) are fixedly connected with guide rods (5), and the axial lead of each guide rod (5) is in a vertical direction; through holes are formed in the four corners of the material loading platform (1) in the vertical direction, and four guide rods (5) on the bottom plate (10) penetrate through the corresponding through holes in the material loading platform (1) respectively; the limiting block (7) is fixedly arranged at the upper end of the guide rod (5), and the limiting block (7) is positioned above the material carrying platform (1); the upper end of the spring (6) is fixedly connected with the center of the lower end face of the material loading platform (1), and the lower end of the spring (6) is fixedly connected with the center of the upper end face of the bottom plate (10); one corner of the material loading platform (1) is provided with a threaded hole in the vertical direction, and a screw rod (8) penetrates through the threaded hole to form threaded fit; scale marks are arranged on the outer wall of the screw rod (8) at equal intervals along the axial lead direction; the nut (9) is sleeved on the screw rod (8), and the nut (9) is positioned above the material loading platform (1); the touch force sensor (11) is arranged on the lower end face of the screw rod (8); the signal output end of the PLC is connected with the signal control end of the warning lamp (4); and the signal output end of the touch force sensor (11) is connected with the signal input end of the PLC.
2. The overweight protection device for hoisting machine as claimed in claim 1, wherein: the distance between the lower end face of the limiting block (7) and the lower end face of the guide rod (5) minus the thickness of the material loading platform (1) is equal to the initial length of the spring (6).
3. The overweight protection device for hoisting machine as claimed in claim 2, wherein: the spring (6) is a compression spring and is cylindrical in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022995863.0U CN214399613U (en) | 2020-12-15 | 2020-12-15 | Overweight-preventing protection device suitable for winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022995863.0U CN214399613U (en) | 2020-12-15 | 2020-12-15 | Overweight-preventing protection device suitable for winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214399613U true CN214399613U (en) | 2021-10-15 |
Family
ID=78038830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022995863.0U Active CN214399613U (en) | 2020-12-15 | 2020-12-15 | Overweight-preventing protection device suitable for winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214399613U (en) |
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2020
- 2020-12-15 CN CN202022995863.0U patent/CN214399613U/en active Active
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