CN107143571A - Gear-box and its axis structure - Google Patents
Gear-box and its axis structure Download PDFInfo
- Publication number
- CN107143571A CN107143571A CN201610134547.XA CN201610134547A CN107143571A CN 107143571 A CN107143571 A CN 107143571A CN 201610134547 A CN201610134547 A CN 201610134547A CN 107143571 A CN107143571 A CN 107143571A
- Authority
- CN
- China
- Prior art keywords
- pipe
- plastic casing
- axle
- gear
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004033 plastic Substances 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 12
- 239000007769 metal material Substances 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 6
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
Abstract
The present invention relates to gear-box technical field, there is provided gear-box and its axis structure, axis structure, including shaft body, the shaft body is separated to form on the first axle part and the second axle part, the first axle part by a step surface and is arranged with plastic casing-pipe, and the plastic casing-pipe is interference fitted with the first axle part.In the present invention, plastic casing-pipe is arranged in shaft body, when installing shaft body, utilize the certain elastic deformation of plastic casing-pipe generation and package power, axis structure, plastic casing-pipe and gear is set to connect into an entirety, the interference fit in axle and hole is realized using the elasticity of plastic material, drive gap and the backhaul for reducing axle in the case where not improving machining accuracy and processing cost are poor, and the transmission accuracy of gear-box is improved with relatively low cost；And it is this simple in construction, it is easy to process, it is applied widely.
Description
Technical field
It is to be related to a kind of gear-box and its axis body knot more specifically the present invention relates to gear-box technical field
Structure.
Background technology
Axle is one of most important part in gear-box, and input shaft, output shaft and tooth are generally comprised in gear-box
The axial workpieces such as wheel shaft.Under normal circumstances, the axle of gear-box and the installation in hole is interference fits.Due to existing
The size in mismachining tolerance, axle and hole can not possibly be completely the same, installs, exists between axle and hole micro- for convenience
Small―gap suture, it is poor that this small gap causes to there is certain backhaul during gearbox drive.For precision
It is required that high miniature gears case, in order to improve the transmission accuracy of gear-box, reduces backhaul difference, it is necessary to which axle is led to
Small interference fit is crossed in axis hole or bearing.When axle and hole are all metal materials, magnitude of interference mistake
Conference causes that axle can not be installed or hole is destroyed in last item, thus the magnitude of interference must strict supervision, so
The requirement on machining accuracy of axle and hole type parts is also improved, causes cost to be substantially increased.
The content of the invention
It is an object of the invention to provide a kind of gear-box and its axis structure, it is intended to solves tooth in the prior art
The problem of axis body requirement on machining accuracy in roller box is high, cost is big.
In order to solve the above technical problems, the technical scheme is that：Axis structure, including shaft body are provided,
The shaft body is separated to form on the first axle part and the second axle part, the first axle part by a step surface and is arranged with
Plastic casing-pipe, the plastic casing-pipe is interference fitted with the first axle part.
Alternatively, the first plane of two transmission power, the plastic casing-pipe are oppositely arranged on the first axle part
On be oppositely arranged two second planes, the second plane described in two is corresponding with the first plane described in two respectively.
Alternatively, the end of first plane is provided with the first chamfering.
Alternatively, the two ends end of second plane is equipped with the second chamfering.
Alternatively, two mouth of pipe sections of the plastic casing-pipe are in track type.
Alternatively, the shaft body is metal material.
Alternatively, the plastic casing-pipe is nylon material.
Present invention also offers a kind of gear-box, including housing with accommodating chamber and located at the accommodating chamber
Interior metal gear, the metal gear center is provided with axis hole, and the shell wall of the housing is provided with and the axle
The mounting hole of hole connection, in addition to above-mentioned axis structure, are arranged with the first axle of the plastic casing-pipe
Portion is stretched into the axis hole by the mounting hole, and the second axle part is located at outside the mounting hole, the plastic cement
Sleeve pipe is interference fitted with the axis hole.
Alternatively, the end of the first axle body is provided with fixing hole, and the fixing hole is provided with screw, the spiral shell
The head outer diameter of nail is more than the diameter of the plastic casing-pipe.
Alternatively, the end of the first axle body is provided with fixing hole, and the fixing hole is provided with screw, the spiral shell
A pad is provided between the head of nail and the end of the first axle body, the external diameter of the pad is more than the modeling
The diameter of gum cover pipe.
In the present invention, plastic casing-pipe is arranged in shaft body, when installing shaft body, is sent out using plastic casing-pipe
Raw certain elastic deformation and package power, make axis structure, plastic casing-pipe and gear connect into an entirety,
The interference fit in axle and hole is realized using the elasticity of plastic material, machining accuracy and processing cost is not being improved
In the case of reduce axle drive gap and backhaul it is poor, with the transmission accuracy of relatively low cost raising gear-box；And
And it is this simple in construction, it is easy to process, it is applied widely.
Brief description of the drawings
Fig. 1 is the explosive view of axis structure provided in an embodiment of the present invention；
Fig. 2 is the explosive view of gear-box provided in an embodiment of the present invention；
Fig. 3 is the front view of gear-box provided in an embodiment of the present invention；
Fig. 4 is A-A sectional views in Fig. 3；
10- shaft bodies；11- step surfaces；12- the first axle parts；
The planes of 121- first；The chamferings of 122- first；123- fixing holes；
13- the second axle parts；14- plastic casing-pipes；The planes of 141- second；
The chamferings of 142- second；20- gear-boxes；21- housings；
The housings of 211- first；The housings of 212- second；The mounting holes of 213- first；
The mounting holes of 214- second；22- metal gears；221- axis holes；
23- screws.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing and reality
Example is applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
Only to explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can
Directly on another element or may be simultaneously present centering elements.When an element is referred to as " connection
In " another element, it can be directly to another element or may be simultaneously present centering elements.
Only it is phase each other it should also be noted that, the orientation term such as left and right, upper and lower in the present embodiment
To concept or using the normal operating condition of product as reference, and it should not be regarded as restrictive.
Reference picture 1, axis structure provided in an embodiment of the present invention, including shaft body 10, shaft body 10 is by one
Step surface 11 is separated to form the first axle part 12 and the second axle part 13, and the diameter of the first axle part 12 is less than second
Axle portion 13, step surface 11 is the end face that the second axle part 13 is connected with the first axle part 12, and it is used to position.
Plastic casing-pipe 14, the shape of plastic casing-pipe 14 and the shape of the first axle part 12 are arranged with the first axle part 12
Matching, plastic casing-pipe 14 is interference fitted with the first axle part 12.
In the present embodiment, because plastic casing-pipe 14 is flexible, when installing axis structure, garment bag is utilized
The elastic deformation and package power of pipe 14, make axis structure preferably carry out cooperation installation with hole, so, not
Drive gap and the backhaul for reducing axis structure in the case of improving machining accuracy and processing cost are poor.
Specifically, the first plane 121 is oppositely arranged on the first axle part 12, likewise, on plastic casing-pipe 14
Two second planes 141 are oppositely arranged, two second planes 141 are corresponding with two first planes 121 respectively.Utilize
When two first planes 121 in hole with installing, make relative to slide between the first axle part 12 and axis hole, so that
Form a transmission for being performed integrally power.
For the ease of installing plastic casing-pipe 14, the end of the first axle part 12 is provided with the first chamfering 122.
And for the ease of the installation between plastic casing-pipe 14 and hole, two second planes 141 of plastic casing-pipe 14
Two ends end be equipped with the second chamfering 142.
In the present embodiment, two second planes 141 on plastic casing-pipe 14 have certain width, so, modeling
Two mouth of pipe sections of gum cover pipe 14 are in track type as shown in Figure 1, i.e., with two parallel straight flanges, and
Two ends are curved.
In the present embodiment, shaft body 10 is made of metal material, and plastic casing-pipe 14 is nylon material.
Certainly, plastic casing-pipe 14 can also be made of other plastic cement materials.
It is interference fit between plastic casing-pipe 14 and the first axle part 12 in the present embodiment.When mounted, it is first
First by a mouthpiece cover of plastic casing-pipe 14 on the first axle part 12, by axial compressive force by plastic casing-pipe 14
It is pressed on the first axle part 12, until the end face of plastic casing-pipe 14 is contacted with step surface 11.
It should be noted that in the present embodiment, shaft body 10 can be a variety of axial workpieces, such as gear-box it is defeated
Enter axle, output shaft or gear shaft etc..The first axle part 12 for being arranged with plastic casing-pipe 14 can be transmission
Input can also be the output end of transmission.
Reference picture 2 is to Fig. 4, and the embodiment of the present invention additionally provides a kind of gear-box 20.Gear-box 20 includes shell
Body 21, metal gear 22 and above-mentioned axis structure.Housing 21 is by the first housing 211 and the second housing
212 enclose and are formed, and the first housing 211 and the second housing 212 are internally formed accommodating chamber, metal after enclosing
Gear 22 is placed in accommodating chamber.The center of metal gear 22 is provided with the axis hole 221 of insertion.The shape of axis hole 221
Shape is matched with the contour structures of plastic casing-pipe 14.The shell wall of first housing 211 is provided with and connected with axis hole 221
The first mounting hole 213, the first axle part 12 for being arranged with plastic casing-pipe 14 stretches into by the first mounting hole 213
In axis hole 221, and the second axle part 13 is located at outside the first mounting hole 213, plastic casing-pipe 14 and axis hole 221
Interference fit.
In the present embodiment, the first axle part 12 is also metal material, so, and axis hole 221 is also metal material,
When installing the first axle part 12, occur certain elastic deformation and package power using plastic casing-pipe 14, make axle
Body structure, plastic casing-pipe 14 and metal gear 22 connect into an entirety.It is to utilize plastic material
Elasticity realizes the interference fit in axle and hole, reduces axle in the case where not improving machining accuracy and processing cost
Drive gap and backhaul are poor, and the transmission accuracy of gear-box 20 is improved with relatively low cost；And in the present embodiment
It is simple in construction, it is easy to process, it is applied widely.
In the present embodiment, shaft body 10 is an output shaft.The first axle part 12 passes through the first mounting hole 213
It is connected with the axis hole 221 of metal gear 22, the second axle part 13 is connected with the other parts outside gear-box 20,
When the power source drive metal gear 22 in gear-box 20 is rotated, due to plastic casing-pipe 14, shaft body 10
And be interference fit, metal gear 22, plastic casing-pipe 14 and the formation of shaft body 10 one between axis hole 221
Body, drives the other parts outside the second axle part 13 and gear-box 20 to rotate when rotating together, so that by tooth
Motion in roller box 20 is driven in the other parts being delivered to outside gear-box 20 by output shaft.
In the present embodiment, second mounting hole 214 corresponding with axis hole 221 also is provided with the second housing 212,
When mounted, the first axle part 12 of shaft body 10 is passed through into the first mounting hole 213 by the way of being axially forced to
In axis hole 221, to avoid the abjection from axis hole 221 in rotation process of shaft body 10, first
The end face of axle portion 12 sets fixing hole 123, and by the second mounting hole 214, spiral shell is installed in fixing hole 123
Nail 23, the head outer diameter of screw 23 is more than the diameter of plastic casing-pipe 14.Certainly, outside the head of screw 23
Footpath might be less that the diameter of plastic casing-pipe 14, therefore, it is desirable to a pad (figure is set in the end of the first axle body
Not shown in), the head of screw 23 is pressed on pad, and the external diameter of pad is more than the diameter of plastic casing-pipe 14.
Presently preferred embodiments of the present invention is these are only, is not intended to limit the invention, it is all the present invention's
Any modifications, equivalent substitutions and improvements made within spirit and principle etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. axis structure, including shaft body, the shaft body are separated to form the first axle part and by a step surface
Two axle portions, it is characterised in that：Be arranged with plastic casing-pipe on the first axle part, the plastic casing-pipe with it is described
The first axle part is interference fitted.
2. axis structure as claimed in claim 1, it is characterised in that：It is oppositely arranged on the first axle part
Two second planes are oppositely arranged on first plane of two transmission power, the plastic casing-pipe, second is flat described in two
Face is corresponding with the first plane described in two respectively.
3. axis structure as claimed in claim 2, it is characterised in that：The end of first plane is provided with
First chamfering.
4. axis structure as claimed in claim 2 or claim 3, it is characterised in that：The two ends of second plane
End is equipped with the second chamfering.
5. axis structure as claimed in claim 1, it is characterised in that：Two mouths of pipe of the plastic casing-pipe are cut
Face is in track type.
6. axis structure as claimed in claim 1, it is characterised in that：The shaft body is metal material.
7. axis structure as claimed in claim 1, it is characterised in that：The plastic casing-pipe is nylon material.
8. gear-box, including the housing with accommodating chamber and the metal gear in the accommodating chamber, institute
Metal gear center is stated provided with axis hole, the shell wall of the housing is provided with the mounting hole connected with the axis hole,
It is characterized in that：Also include the axis structure as any one of claim 1 to 7, be arranged with described
The first axle part of plastic casing-pipe is stretched into the axis hole by the mounting hole, and the second axle part is located at institute
State outside mounting hole, the plastic casing-pipe is interference fitted with the axis hole.
9. gear-box as claimed in claim 8, it is characterised in that：The end of the first axle body is provided with solid
Determine hole, the fixing hole is provided with screw, and the head outer diameter of the screw is more than the diameter of the plastic casing-pipe.
10. gear-box as claimed in claim 8, it is characterised in that：The end of the first axle body is provided with
Fixing hole, the fixing hole is provided with screw, is set between the head of the screw and the end of the first axle body
There is a pad, the external diameter of the pad is more than the diameter of the plastic casing-pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134547.XA CN107143571A (en) | 2016-03-10 | 2016-03-10 | Gear-box and its axis structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610134547.XA CN107143571A (en) | 2016-03-10 | 2016-03-10 | Gear-box and its axis structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107143571A true CN107143571A (en) | 2017-09-08 |
Family
ID=59784058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610134547.XA Pending CN107143571A (en) | 2016-03-10 | 2016-03-10 | Gear-box and its axis structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143571A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0594562U (en) * | 1992-05-25 | 1993-12-24 | アスモ株式会社 | Buffer gear mechanism |
| JPH08226451A (en) * | 1995-02-21 | 1996-09-03 | Koyo Seiko Co Ltd | Shaft connecting mechanism |
| US5836821A (en) * | 1996-03-13 | 1998-11-17 | Kabushiki Kaisha Yamada Seisakusho | Elastic coupling for steering apparatus |
| US6186694B1 (en) * | 1996-12-13 | 2001-02-13 | Lemförder Nacam SA | Device for permanently coupling two shafts |
| CN202032004U (en) * | 2011-03-23 | 2011-11-09 | 上海西门子医疗器械有限公司 | Shaft connecting part |
| CN102537107A (en) * | 2010-12-24 | 2012-07-04 | 北京中纺锐力机电有限公司 | Elastic coupling for motor |
| CN205503723U (en) * | 2016-03-10 | 2016-08-24 | 深圳市兆威机电有限公司 | Gear box and axis body structure thereof |
-
2016
- 2016-03-10 CN CN201610134547.XA patent/CN107143571A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0594562U (en) * | 1992-05-25 | 1993-12-24 | アスモ株式会社 | Buffer gear mechanism |
| JPH08226451A (en) * | 1995-02-21 | 1996-09-03 | Koyo Seiko Co Ltd | Shaft connecting mechanism |
| US5836821A (en) * | 1996-03-13 | 1998-11-17 | Kabushiki Kaisha Yamada Seisakusho | Elastic coupling for steering apparatus |
| US6186694B1 (en) * | 1996-12-13 | 2001-02-13 | Lemförder Nacam SA | Device for permanently coupling two shafts |
| CN102537107A (en) * | 2010-12-24 | 2012-07-04 | 北京中纺锐力机电有限公司 | Elastic coupling for motor |
| CN202032004U (en) * | 2011-03-23 | 2011-11-09 | 上海西门子医疗器械有限公司 | Shaft connecting part |
| CN205503723U (en) * | 2016-03-10 | 2016-08-24 | 深圳市兆威机电有限公司 | Gear box and axis body structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518000 Guangdong Shenzhen Baoan District Fuyong Street Dragon King Temple Industrial Park 18 Applicant after: SHENZHEN ZHAOWEI MACHINERY&ELECTRONICS Co.,Ltd. Address before: 518000 Guangdong Shenzhen Baoan District Fuyong Street Dragon King Temple Industrial Park 18 Applicant before: Shenzhen Zhaowei Machinery&electronics Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170908 |
|
| RJ01 | Rejection of invention patent application after publication |