CN201869016U - Bearing structure of motor gear - Google Patents
Bearing structure of motor gear Download PDFInfo
- Publication number
- CN201869016U CN201869016U CN2010205879807U CN201020587980U CN201869016U CN 201869016 U CN201869016 U CN 201869016U CN 2010205879807 U CN2010205879807 U CN 2010205879807U CN 201020587980 U CN201020587980 U CN 201020587980U CN 201869016 U CN201869016 U CN 201869016U
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- CN
- China
- Prior art keywords
- gear
- motor
- motor shaft
- casing
- reduction
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- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a bearing structure of a motor gear, which comprises a box body, a gear, a motor shaft, a fixed part and a bush, wherein the box body is provided with a box hole; one end of the motor shaft is connected with the gear, and the other end of the motor shaft penetrates out from the box hole; the fixed part is sheathed at the end of the motor shaft, penetrating out from the box hole; the bush is arranged between the box body and the motor shaft and penetrates through the box body; an annular bulge is arranged at one end of the bush along circumferential direction and is arranged between the box body and the gear; and the box body and the gear are separated from each other with a clearance. As the clearance is formed between the box body and the gear, the friction between a reduction box and a reduction gear can be reduced when a motor is used, therefore, the bearing structure realizes the effect of effectively reducing the friction between the reduction gear and the reduction box and prolonging the service life of the reduction gear.
Description
Technical field
The utility model relates to the motor case field, relates in particular to a kind of structure of accepting of motor gear.
Background technology
Existing most of motor all comprises reduction gearing, and reduction gearing had both needed to stablize firm being fixed in the deceleration box, again as much as possible with the less friction of deceleration box, increase the life-span, reduce noise.Reduction gearing is injection-moulded on the motor output shaft.The actual effect of reduction gearing mainly contains two aspects, and the one, with contacting of motor output shaft, with contacting of motor output shaft in order to transmit the power of motor to reduction gearing by motor output shaft; The 2nd, the contacting of reduction gearing and deceleration box.Reduction gearing and contacting of deceleration box are harmful to, and without any what act on, must reduce or avoid.As shown in Figure 1, the design of existing most of motors at reduction gearing 3 and reduction box 2 bottom contact positions, adopts waveform bullet pad 8 for reducing the friction between reduction gearing 3 and the reduction box 2, make reduction gearing 3 and reduction box 2 bottoms produce the gap, do not contact mutually.And at two plain washers 9 of waveform bullet pad 8 upper and lower surfaces increase.Plain washer smooth surface 9, reduction gearing 3 and reduction box 2 are kept apart the most at last, make to contact with plain washer 9 in reduction gearing 3, and reduction box 2 contacts with another plain washer 9.By adjusting plain washer 9 surface roughnesses, be reduced in the friction of reduction gearing 3 and reduction box 2 as much as possible, fastening at lining 4 tops by locking chrysanthemum sheet 5.This design is widely used as the motor general scheme.
Through long-term test and use, above scheme exists some following shortcomings:
1, for the friction that reduces reduction gearing 3 and reduction box 2 is provided with plain washer 9 and waveform bullet pad 8, increased product component, and increased the product assembly process.
2, reduction gearing 3 contacts with plain washer 9, because reduction gearing 3 adopts plastic cement materials usually, and plain washer 9 uses steel to make usually, and two kinds of hardness differ bigger material contact, wearing and tearing that can acceleration-deceleration gear 3.
3, plain washer 9 and waveform bullet pad 8 are two kinds of steel, in reduction gearing 3 high speed rotating, the situation that plain washer 9 rotates thereupon very easily takes place, plain washer 9 and waveform bullet pad 8 friction that can rotate at this moment, very easily produce intermetallic friction noise, noise is excessive when causing click to use easily.
4, plain washer 9, rotates and reduction box 2 generation sliding frictions under the drive of reduction gearing 3 less than fixing, easily causes the inefficacy of the worn out grade of plain washer.
The utility model content
For solve exist in the prior art since between reduction gearing and the reduction box friction cause the mechanism's abnormal sound and the problem in minimizing reduction gearing life-span greatly, the utility model provides a kind of and is guaranteeing that reduction gearing installs on the basis of firm stable, can effectively reduce friction between reduction gearing and the reduction box, increase the structure of accepting of the low motor gear of reduction gearing useful life and product cost.
For addressing the above problem, the structure of accepting of a kind of motor gear of the present utility model comprises casing, gear, motor shaft and fixed part, offer the case hole on the described casing, one end of described motor shaft connects described gear, the other end passes from described case hole, described fixed part is sheathed on the end that described motor shaft passes from the case hole, the described structure of accepting also comprises the lining that is arranged between casing and the motor shaft, described lining passes from described casing, described lining one end protrudes along circumferentially having ring-type, described ring-type is protruded and is placed between casing and the gear, and described casing and described gear clearance are separated by.
Gear place one side of described casing offers with described annular protrudes the groove that cooperates, and the annular of described lining is protruded and placed described groove.
The thickness that described annular is protruded is greater than the degree of depth of described groove.
Described lining adopts the metal-based powder metallurgy made, contains the fluid that is used to lubricate in the described material.
Described fixed part adopts locking chrysanthemum sheet.
Described gear adopts plastic cement material.
Described gear injection moulding is connected on the described motor shaft.
Adopted a kind of motor gear that the utility model provides accept structure after owing to cancelled plain washer, the waveform bullet pad that accepting of existing motor gear is provided with in the structure, therefore reduced the kind and the quantity of product component, further simplified assembly process.On reduction box, be provided with groove, the annular of lining is protruded and is embedded in the groove, make and do not have the risk of slide relative between reduction box and the lining, in addition, because the thickness that annular is protruded is greater than the degree of depth of groove, after annular is protruded and is embedded in the groove, between reduction box and reduction gearing, formed the gap, reduced the motor friction between reduction box and the reduction gearing in use, thus, the utility model has not only been realized the friction between effective reduction reduction gearing and the reduction box, increase reduction gearing useful life, and, also reduced product cost owing to adopt the minimizing of product component number.
Description of drawings
Fig. 1 is the cutaway view of accepting a kind of execution mode of structure of a kind of motor gear of providing in the prior art;
Fig. 2 is the cutaway view of accepting a kind of execution mode of structure of a kind of motor gear of providing of the utility model.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 2, a kind of execution mode of accepting structure according to a kind of motor gear of the present utility model, comprise casing, gear and motor shaft 1, under the present embodiment, above-mentioned casing is specially the reduction box 2 in the motor, and gear adopts reduction gearing 3, offers the reduction box hole 10 of a perforation on the reduction box 2, wherein side at 10 places, reduction box hole of reduction box 2 is provided with groove 7, and the diameter of section of groove 7 is greater than the diameter of section in reduction box hole 10.One end of above-mentioned motor shaft 1 connects reduction gearing, and the other end passes from the reduction box hole, and under the present embodiment, reduction gearing 3 can be connected on the motor shaft 1 by injection moulding.
The structure of accepting of a kind of motor gear described in the utility model also comprises the lining 4 that is arranged between reduction box hole 10 and the motor shaft 1, lining 4 passes from reduction box hole 10, one end of this lining 4 protrudes 6 along circumferentially having ring-type, after lining 4 is assembled in the reduction box hole 10, ring-type is protruded 6 and is placed between reduction box 2 and the reduction gearing 3, the cross section external diameter of this ring-type protrusion 6 is less than the diameter of section of the groove on the above-mentioned reduction box 7, making this ring-type protrude 6 can embed among the above-mentioned groove 7, under the present embodiment, the diameter of section of groove 7 is slightly larger than ring-type and protrudes 6 diameter of section, with guarantee groove 7 with annular protrude 6 cooperate after, the gap between its two is less.The thickness of above-mentioned annular protrusion 6 is greater than the degree of depth of groove 7, therefore annular protrudes 6 after embedding above-mentioned groove 7, have a protuberance 11 in annular protrusion 6 meetings in axial direction than reduction box 2, this protuberance 11 is separated reduction box 2 and reduction gearing 3, and reduction box 2 and reduction gearing 3 gaps are separated by.
Above-mentioned lining 4 adopts the metal-based powder metallurgy made, contains the fluid that is used to lubricate in the above-mentioned metal-based powder metallurgy material.Under the present embodiment, specifically can select the manufacturing of copper-base powder metallurgy material for use, its oil content is higher, itself also has self-lubricating property, in the machine operation process, lining 4 can be separated out lubricant grease automatically, and reduction gearing 3 is lubricating owing to grease in rotation process, can reduce the wearing and tearing of motor component greatly, thereby increase motor useful life.
The end that motor shaft 1 passes from reduction box hole 10 is arranged with a fixed part 5, and under the present embodiment, fixed part can adopt locking chrysanthemum sheet.
Above-mentioned reduction gearing adopts plastic cement material.
Adopted a kind of motor gear that the utility model provides accept structure after, owing to cancelled plain washer 9, the waveform bullet pad 8 that accepting of existing motor gear is provided with in the structure, therefore reduce the kind and the quantity of product component, further simplified assembly process.On reduction box 2, be provided with groove 7, the convex annular 6 of lining 4 goes out to be embedded in the groove 7, make and do not have the risk of slide relative between reduction box 2 and the lining 4, in addition, because the thickness of annular protrusion 6 is greater than the degree of depth of groove 7, after annular protrusion 6 is embedded in the groove 7, between reduction box 2 and reduction gearing 3, formed the gap, reduced the motor friction between reduction box 2 and the reduction gearing 3 in use, thus, the utility model has not only been realized the friction between effective reduction reduction gearing 3 and the reduction box 2, increase by 3 useful lifes of reduction gearing, and, also reduced product cost owing to adopt the minimizing of product component number.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the ordinary skill in the art, can under the situation that does not break away from principle of the present utility model, carry out multiple variation, modification, replacement and distortion, but all should be considered as belonging to protection range of the present utility model this embodiment.
Claims (7)
1. a motor gear accepts structure, comprise casing (2), gear (3), motor shaft (1) and fixed part (5), offer case hole (10) on the described casing (2), one end of described motor shaft (1) connects described gear (3), the other end passes from described case hole (10), described fixed part (5) is sheathed on the end that described motor shaft (1) passes from case hole (10), the described structure of accepting also comprises the lining (4) that is arranged between casing (2) and the motor shaft (1), it is characterized in that: described lining (4) passes from described casing (2), described lining (4) one ends protrude (6) along circumferentially having ring-type, described ring-type is protruded (6) and is placed between casing (2) and the gear (3), and described casing (2) is separated by with described gear (3) gap.
2. a kind of motor gear as claimed in claim 1 accepts structure, it is characterized in that, gear (3) place one side of described casing (2) offers with described annular protrudes the groove (7) that (6) cooperate, and the annular of described lining (4) is protruded (6) and placed described groove (7).
A kind of motor gear as claimed in claim 2 accept structure, it is characterized in that described annular is protruded the degree of depth of the thickness of (6) greater than described groove (7).
4. as the structure of accepting of each described a kind of motor gear in the claim 1 to 3, it is characterized in that described lining (4) adopts the metal-based powder metallurgy made, contains the fluid that is used to lubricate in the described material.
5. as the structure of accepting of each described a kind of motor gear in the claim 1 to 3, it is characterized in that described fixed part (5) adopts locking chrysanthemum sheet.
6. as the structure of accepting of each described a kind of motor gear in the claim 1 to 3, it is characterized in that described gear (3) adopts plastic cement material.
7. as the structure of accepting of each described a kind of motor gear in the claim 1 to 3, it is characterized in that described gear (3) injection moulding is connected on the described motor shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205879807U CN201869016U (en) | 2010-10-30 | 2010-10-30 | Bearing structure of motor gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205879807U CN201869016U (en) | 2010-10-30 | 2010-10-30 | Bearing structure of motor gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869016U true CN201869016U (en) | 2011-06-15 |
Family
ID=44140159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205879807U Expired - Lifetime CN201869016U (en) | 2010-10-30 | 2010-10-30 | Bearing structure of motor gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201869016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853009A (en) * | 2012-09-26 | 2013-01-02 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking actuator for electronic parking brake system of motor vehicle |
-
2010
- 2010-10-30 CN CN2010205879807U patent/CN201869016U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853009A (en) * | 2012-09-26 | 2013-01-02 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking actuator for electronic parking brake system of motor vehicle |
| CN102853009B (en) * | 2012-09-26 | 2015-07-15 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking actuator for electronic parking brake system of motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |