CN205503723U - Gear box and axis body structure thereof - Google Patents
Gear box and axis body structure thereof Download PDFInfo
- Publication number
- CN205503723U CN205503723U CN201620181034.XU CN201620181034U CN205503723U CN 205503723 U CN205503723 U CN 205503723U CN 201620181034 U CN201620181034 U CN 201620181034U CN 205503723 U CN205503723 U CN 205503723U
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- axle
- pipe
- plastic casing
- hole
- gear
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Abstract
The utility model relates to a gear box technical field provides gear box and axis body structure thereof, the axis body structure, including the axle body, formation the first axle part and the second axle part are separated by a step face to the axle body, the cover is equipped with the plastic sleeve pipe on the first axle part, the plastic sleeve pipe with the first axle part interference fit. The utility model discloses in, the plastic sleeve pipe is established to the cover on the axle body, when installing the axle body, utilizes the plastic sleeve pipe to take place certain elastic deformation and packaging force, makes axis body structure, plastic sleeve pipe and gear connection become a whole, utilizes the elasticity realization axle of plastic material and the interference fit in hole, and the transmission clearance and the return stroke that reduce the axle under the condition of not putting forward high pressure heater worker's precision and processing cost are poor to the transmission precision of high tooth roller box is carried to lower cost, and this kind of simple structure, processing is convenient, and application scope is wide.
Description
Technical field
This utility model relates to gear-box technical field, more specifically, relates to a kind of gear-box and axle thereof
Body structure.
Background technology
Axle is one of most important part in gear-box, generally comprises power shaft, output shaft and tooth in gear-box
The axial workpieces such as wheel shaft.Under normal circumstances, the axle of gear-box and the installation in hole are interference fits.Owing to existing
The size in mismachining tolerance, axle and hole can not be completely the same, installs for convenience, exists micro-between axle and hole
Small-gap suture, it is poor to there is certain backhaul during causing gearbox drive in this small gap.For precision
Require high miniature gears case, in order to improve the transmission accuracy of gear-box, reduce backhaul poor, need to lead to axle
Cross small interference fit to be arranged in axis hole or bearing.When axle and hole are all metal material, magnitude of interference mistake
Conference causes axle to install or hole is destroyed when last item, therefore the necessary strict supervision of the magnitude of interference, so
Also improve the requirement on machining accuracy of axle and hole type parts, cause cost to be substantially increased.
Utility model content
The purpose of this utility model is to provide a kind of gear-box and axis structure thereof, it is intended to solve prior art
The problem that axis body requirement on machining accuracy in middle gear case is high, cost is big.
For solving above-mentioned technical problem, the technical solution of the utility model is: provide axis structure, including axle
Body, described axle body is separated to form the first axle part and the second axle part by a step surface, on described the first axle part
It is arranged with plastic casing-pipe, described plastic casing-pipe and described the first axle part interference fit.
Alternatively, described the first axle part is oppositely arranged the first plane of two transmission power, described plastic casing-pipe
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 described first plane is provided with the first chamfering.
Alternatively, the end, two ends of described second plane is equipped with the second chamfering.
Alternatively, two mouth of pipe cross sections of described plastic casing-pipe are track type.
Alternatively, described axle body is metal material.
Alternatively, described plastic casing-pipe is nylon material.
This utility model additionally provides a kind of gear-box, including having the housing accommodating chamber and being located at described appearance
Receiving the metal gear of intracavity, described metal gear center is provided with axis hole, and the shell wall of described housing is provided with and institute
State the installing hole of axis hole connection, also include above-mentioned axis structure, be arranged with described the of described plastic casing-pipe
One axle portion is stretched in described axis hole by described installing hole, and described the second axle part is positioned at outside described installing hole, described
Plastic casing-pipe and described axis hole interference fit.
Alternatively, the end of described the first axle body is provided with fixing hole, and described fixing hole is provided with screw, described spiral shell
The head outer diameter of nail is more than the diameter of described plastic casing-pipe.
Alternatively, the end of described the first axle body is provided with fixing hole, and described fixing hole is provided with screw, described spiral shell
Nail head and the end of described the first axle body between be provided with a pad, the external diameter of described pad be more than described in mould
The diameter of gum cover pipe.
In this utility model, sheathed plastic casing-pipe on axle body, when installing axle body, utilize garment bag
There is certain elastic deformation and package power in pipe, make axis structure, plastic casing-pipe and gear connect into one whole
Body, utilizes the elasticity of plastic material to realize the interference fit of axle and hole, is not improving machining accuracy and is being processed into
The drive gap and the backhaul that reduce axle in the case of Ben are poor, improve the transmission accuracy of gear-box with relatively low cost；
And this simple in construction, easy to process, applied widely.
Accompanying drawing explanation
Fig. 1 is the explosive view of the axis structure that this utility model embodiment provides；
Fig. 2 is the explosive view of the gear-box that this utility model embodiment provides；
Fig. 3 is the front view of the gear-box that this utility model embodiment provides；
Fig. 4 is A-A sectional view in Fig. 3；
10-axle body；11-step surface；12-the first axle part；
121-the first plane；122-the first chamfering；123-fixing hole；
13-the second axle part；14-plastic casing-pipe；141-the second plane；
142-the second chamfering；20-gear-box；21-housing；
211-the first housing；212-the second housing；213-the first installing hole；
214-the second installing hole；22-metal gear；221-axis hole；
23-screw.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, this utility model is further elaborated.Should be appreciated that described herein specifically
Embodiment, only in order to explain this utility model, is not used to limit this utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can
With directly on another element or may be simultaneously present centering elements.When an element is referred to as " connecting
In " another element, it can be directly to another element or may be simultaneously present centering elements.
Also, it should be noted the orientation term such as left and right, upper and lower in the present embodiment, it it is only phase each other
To concept or with the normal operating condition of product as reference, and should not be regarded as restrictive.
With reference to Fig. 1, the axis structure that this utility model embodiment provides, including axle body 10, axle body 10
Being separated to form the first axle part 12 and the second axle part 13 by a step surface 11, the diameter of the first axle part 12 is less than
The second axle part 13, step surface 11 is i.e. the end face that the second axle part 13 is connected with the first axle part 12, and it is used for
Location.Plastic casing-pipe 14, the shape of plastic casing-pipe 14 and the first axle part 12 it is arranged with on the first axle part 12
Form fit, plastic casing-pipe 14 and the first axle part 12 interference fit.
In the present embodiment, owing to plastic casing-pipe 14 has elasticity, when installing axis structure, utilize garment bag
The elastic deformation of pipe 14 and package power, make axis structure preferably carry out with hole coordinating installing, so, not
The drive gap and the backhaul that reduce axis structure in the case of improving machining accuracy and processing cost are poor.
Specifically, the first axle part 12 is oppositely arranged the first plane 121, same, on plastic casing-pipe 14
Being oppositely arranged two second planes 141, two second planes 141 are corresponding with two first planes 121 respectively.Utilize
When installing in two first planes 121 and hole, make can not relative to slide between the first axle part 12 and axis hole, thus
Form a transmission 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
End, two ends be equipped with the second chamfering 142.
In the present embodiment, two second planes 141 on plastic casing-pipe 14 have certain width, so, mould
Two mouth of pipe cross sections of gum cover pipe 14, i.e. in track type as shown in Figure 1, i.e. have two parallel straight flanges, and
Two ends is curved.
In the present embodiment, axle body 10 uses metal material to make, and plastic casing-pipe 14 is nylon material.
Certainly, plastic casing-pipe 14 can also use other plastic cement materials to make.
In the present embodiment, it is interference fit between plastic casing-pipe 14 and the first axle part 12.When mounted, 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
On press-in the first axle part 12, until the end face of plastic casing-pipe 14 contacts with step surface 11.
It should be noted that in the present embodiment, axle body 10 can be multiple axial workpiece, defeated such as gear-box
Enter axle, output shaft or gear shaft etc..The first axle part 12 being arranged with plastic casing-pipe 14 can be transmission
Input can also be for the outfan of transmission.
With reference to Fig. 2 to Fig. 4, this utility model embodiment additionally provides a kind of gear-box 20.Gear-box 20
Including housing 21, metal gear 22 and above-mentioned axis structure.Housing 21 is by the first housing 211 and
Two housings 212 enclose and are formed, and the first housing 211 and the second housing 212 are internally formed receiving chamber after enclosing,
Metal gear 22 is placed in receiving intracavity.Metal gear 22 center is provided with through axis hole 221.Axis hole 221
Shape mate with the contour structures of plastic casing-pipe 14.The shell wall of the first housing 211 is provided with and axis hole 221
First installing hole 213 of connection, is arranged with the first axle part 12 of plastic casing-pipe 14 by the first installing hole 213
Stretch in axis hole 221, and the second axle part 13 is positioned at outside the first installing 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, and so, axis hole 221 is also metal material,
When installing the first axle part 12, utilize plastic casing-pipe 14 that certain elastic deformation and package power occur, make axle
Body structure, plastic casing-pipe 14 and metal gear 22 connect into an entirety.I.e., plastic material is utilized
Elasticity realizes the interference fit of axle and hole, reduces axle in the case of not improving machining accuracy and processing cost
Drive gap and backhaul are poor, improve the transmission accuracy of gear-box 20 with relatively low cost；And in the present embodiment
Simple in construction, easy to process, applied widely.
In the present embodiment, axle body 10 is an output shaft.The first axle part 12 is through the first installing hole 213
Be connected with the axis hole 221 of metal gear 22, the second axle part 13 with gear-box 20 outside other parts be connected,
When the power source in gear-box 20 drives metal gear 22 to rotate, due to plastic casing-pipe 14, axle body 10
And between axis hole 221, it being interference fit, metal gear 22, plastic casing-pipe 14 and axle body 10 form one
Body, drives other parts turn outside the second axle part 13 and gear-box 20 when rotating together, thus by tooth
The output shaft transmission that moves through in roller box 20 is delivered on other parts outside gear-box 20.
In the present embodiment, the second housing 212 also is provided with second installing hole 214 corresponding with axis hole 221,
When mounted, use the mode being axially forced to by the first axle part 12 of axle body 10 through the first installing hole 213
It is arranged in axis hole 221, for avoiding axle body 10 to deviate from from axis hole 221 in rotation process, first
The end face in axle portion 12 arranges fixing hole 123, by the second installing hole 214, installs spiral shell 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 arrange a pad (figure 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.
These are only preferred embodiment of the present utility model, not in order to limit this utility model, all
Any amendment, equivalent and the improvement etc. made within spirit of the present utility model and principle, all should comprise
Within protection domain of the present utility model.
Claims (10)
1. axis structure, including axle body, described axle body is separated to form the first axle part and by a step surface
Two axle portions, it is characterised in that: being arranged with plastic casing-pipe on described the first axle part, described plastic casing-pipe is with described
The first axle part interference fit.
2. axis structure as claimed in claim 1, it is characterised in that: it is oppositely arranged on described the first axle part
First plane of two transmission power, described plastic casing-pipe is oppositely arranged two second planes, and described in two, second is flat
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 described 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 described 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 described plastic casing-pipe cut
Face is track type.
6. axis structure as claimed in claim 1, it is characterised in that: described axle body is metal material.
7. axis structure as claimed in claim 1, it is characterised in that: described plastic casing-pipe is nylon material.
8. gear-box, including having the housing accommodating chamber and the metal gear being located at described receiving intracavity, institute
Stating metal gear center and be provided with axis hole, the shell wall of described housing is provided with the installing hole connected with described axis hole,
It is characterized in that: also include the axis structure as according to any one of claim 1 to 7, be arranged with described
The described the first axle part of plastic casing-pipe is stretched in described axis hole by described installing hole, and described the second axle part is positioned at institute
State outside installing hole, described plastic casing-pipe and described axis hole interference fit.
9. gear-box as claimed in claim 8, it is characterised in that: the end of described the first axle body is provided with solid
Determining hole, described fixing hole is provided with screw, and the head outer diameter of described screw is more than the diameter of described plastic casing-pipe.
10. gear-box as claimed in claim 8, it is characterised in that: the end of described the first axle body is provided with
Fixing hole, described fixing hole is provided with screw, sets between head and the end of described the first axle body of described screw
Having a pad, the external diameter of described pad is more than the diameter of described plastic casing-pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620181034.XU CN205503723U (en) | 2016-03-10 | 2016-03-10 | Gear box and axis body structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620181034.XU CN205503723U (en) | 2016-03-10 | 2016-03-10 | Gear box and axis body structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503723U true CN205503723U (en) | 2016-08-24 |
Family
ID=56729809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620181034.XU Active CN205503723U (en) | 2016-03-10 | 2016-03-10 | Gear box and axis body structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143571A (en) * | 2016-03-10 | 2017-09-08 | 深圳市兆威机电有限公司 | Gear-box and its axis structure |
-
2016
- 2016-03-10 CN CN201620181034.XU patent/CN205503723U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143571A (en) * | 2016-03-10 | 2017-09-08 | 深圳市兆威机电有限公司 | Gear-box and its axis structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong Shenzhen Baoan District Fuyong Street Dragon King Temple Industrial Park 18 Patentee after: Shenzhen mechatronics, mechatronics and Limited by Share Ltd Address before: 518000 Guangdong Shenzhen Baoan District Fuyong Street Dragon King Temple Industrial Park 18 Patentee before: Shenzhen Zhaowei Machinery & Electronics Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |