CN204704249U - A kind of sun gear pad - Google Patents
A kind of sun gear pad Download PDFInfo
- Publication number
- CN204704249U CN204704249U CN201520230590.7U CN201520230590U CN204704249U CN 204704249 U CN204704249 U CN 204704249U CN 201520230590 U CN201520230590 U CN 201520230590U CN 204704249 U CN204704249 U CN 204704249U
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- sun gear
- chassis
- gear pad
- spline
- pad
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Abstract
The utility model discloses a kind of sun gear pad, it is characterized in that, be located in the spline (2-2) of planet carrier, comprise chassis, centre on chassis is connected with boss, and the centre of boss is provided with center hole, and the side on chassis is provided with a groove, be provided with opening between groove and chassis, chassis be circumferentially provided with the first salient point and the second salient point.Standard of the present utility model is simple, and part difficulty of processing is not high yet.Under the requirement not affecting product quality and performances, improve the structure of traditional sun gear pad, eliminate traditional sun gear pad and in use occur phenomenon that is loosening and play, reduce sun gear pad and the contact wear between sun gear and planet wheel, and eliminate the problems such as lower generation noise that run up.Better prevent the wearing and tearing of planet wheel end face in secondary solar gear and primary planet wheel assembly, improve quality of product, reduce the damage etc. of part.
Description
Technical field
The utility model relates to the structure of sun gear axial restraint in planetary speed reducer, particularly relates to a kind of sun gear pad.
Background technique
Planetary reduction gear is a kind of drive mechanism, this structure adopts several planetary pinion transmitted load simultaneously, make power dividing and reasonably employ internal messing, planetary gear speed-reduction has that volume is little, lightweight, gear range is large, efficiency is high, smooth running, the advantages such as noise is low, strong adaptability, this transmission device is extensive at industrial department Application comparison such as metallurgy, mine, lifting transport, electric power, the energy, building, light industry, traffic.Its structure is primarily of the ring gear be connected on extension case, there is a sun gear driven from external impetus at center, one group of planetary gear set be combined in by three gear deciles on planet carrier is had between ring gear and sun gear, according to actual user demand, the number of teeth and the modulus that change sun gear, planetary pinion and inside engaged gear just can obtain different velocity ratios.For preventing mutually occurring axial float between the sun gear of multistage planet transmission, causing the phenomenon such as to wear and tear between sun gear and planet wheel end face, between sun gear at different levels and planet wheel, using pad to separate.
Traditional sun gear pad is a simple punching press annulus thin plate, as shown in Figure 1 and Figure 2, traditional sun gear pad in use there will be phenomenon that is loosening and play, and sun gear pad and the contact wear between sun gear and planet wheel greatly, run up down and also can produce the problems such as noise.
Summary of the invention
The technical problems to be solved in the utility model is: provide the letter of a kind of structure, prevent sun gear from operation process, producing axial float, produce the sun gear pad of wearing and tearing and noise, solve traditional sun gear pad and in use there will be phenomenon that is loosening and play, sun gear pad and the contact wear between sun gear and planet wheel greatly, run up down and also can produce the problem of noise.
In order to solve the problems of the technologies described above, the technical solution of the utility model there is provided a kind of sun gear pad, it is characterized in that, be located in the spline of planet carrier, comprise chassis, the centre on chassis is connected with boss, the centre of boss is provided with center hole, the side on chassis is provided with a groove, is provided with opening between groove and chassis, chassis be circumferentially provided with the first salient point and the second salient point.
Preferably, the number of described planet carrier spline is the integral multiple of the first salient point and the second salient point number sum.
Preferably, the first described salient point and the radius of the second salient point are less than the width 0.2mm ~ 0.3mm of spline upper spline tooth.
Preferably, the width of the groove at described planet carrier upper spline place is greater than the thickness 0.1mm ~ 0.2mm on chassis.
Preferably, the maximum outside diameter of described chassis cylindrical is greater than the maximum outside diameter 1.5mm ~ 2mm of the spline of planet carrier.
Preferably, the both sides of the circumferentially opening on described chassis are ear, and the end of each ear is equipped with pincers hole.
Preferably, the second described salient point is located on the projection that is connected with chassis.
Preferably, described projection is located at the right opposite of opening.
Preferably, the width of described projection is 0.8mm ~ 1.0mm.
Standard of the present utility model is simple, and part difficulty of processing is not high yet.Under the requirement not affecting product quality and performances, improve the structure of traditional sun gear pad, eliminate traditional sun gear pad and in use occur phenomenon that is loosening and play, reduce sun gear pad and the contact wear between sun gear and planet wheel, and eliminate the problems such as lower generation noise that run up.Better prevent the wearing and tearing of planet wheel end face in secondary solar gear and primary planet wheel assembly, improve quality of product, reduce the damage etc. of part.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model is provided with salient point at sun gear shim perimeter, salient point is made to be installed in planet carrier spline, prevent the relative movement between sun gear pad and planet carrier, have groove and circumferencial direction opening in sun gear pad inside simultaneously, sun gear pad is made to be easy to be arranged in the spline groove of planet carrier, the axis of sun gear pad is fixed, thus better prevents the axial float of secondary solar gear.
2, the utility model structure is simple, and its profile can by being stamped to form, and cost is lower, planet carrier inner groovy processing is simultaneously simple, only needs a groove cutter to process, the installation of this sun gear pad, effectively decrease the wearing and tearing between planet wheel and sun gear, improve quality of product.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional sun gear pad;
Fig. 2 is the Longitudinal cross section schematic of Fig. 1;
Fig. 3 is a kind of structural representation of sun gear pad;
Fig. 4 is the Longitudinal cross section schematic of Fig. 3;
Fig. 5 is a kind of structural representation of sun gear pad general assembly;
Fig. 6 is the I enlarged view in Fig. 5;
Fig. 7 is that in Fig. 6, sun gear pad is arranged on sectional view in planet carrier;
Fig. 8 is II enlarged view in Fig. 7;
Fig. 9 is the sectional view of spline.
Embodiment
For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The utility model is a kind of sun gear pad, should be noted the problem of two aspects during this sun gear gasket design: the selection of (1) sun pad wheel sheet material and heat treatment mode, make it in use have certain wear resistance and elasticity; (2) thickness of sun gear pad and the structural design of small boss thereof, considers the parameter connecting spline in planet carrier, small boss can be installed in spline 2-2 and prevent its radial rotary; (3) size design of sun gear pad cylindrical and opening, had both been convenient to install, and there will not be and loosen and obscission after also making this pad install.
As shown in Figure 3, Figure 4, a kind of sun gear pad is arranged in the spline 2-2 of planet carrier 2, it comprises chassis 1-2, centre on the 1-2 of chassis is connected with boss 1-1, the centre of boss 1-1 has center hole 1-3, there is a groove 1-7 side of chassis 1-2, has opening 1-6 between groove 1-7 and chassis 1-2, and chassis 1-2 circumferentially has the first salient point 1-8 and the second salient point 1-10.The both sides of the circumferentially opening 1-6 of chassis 1-2 are ear 1-4, Jun Youqian hole, the end 1-5 of each ear 1-4, use Circlip tongs by the pincers hole 1-5 on opening 1-6 place ear 1-4 during installation, sun gear pad 1 cylindrical is shunk to be arranged in the spline 2-2 of planet carrier 2, as shown in Figure 6, Figure 7.Second salient point 1-10 is arranged on the projection 1-9 that is connected with chassis 1-2.Projection 1-9 is positioned at the right opposite of opening 1-6.The width m of projection 1-9 is 0.8mm ~ 1.0mm.
The number of planet carrier 2 spline 2-2 is the integral multiple of the first salient point 1-8 and the second salient point 1-10 number sum.The radius R of the first salient point 1-8 and the second salient point 1-10 is less than the width 0.2mm ~ 0.3mm of spline 2-2 upper spline tooth.
Sun gear pad 1 is arranged in the spline 2-2 of planet carrier 2, makes sun gear pad 1 cannot relative movement in spline 2-2, decrease the wearing and tearing between sun gear pad 1 and planet carrier 2.Play is not produced in operating for making sun gear pad 1, make sun gear pad 1 axial restraint, a groove 2-3 is processed at planet carrier 2 spline place, groove 2-3 is positioned at spline 2-2, as shown in Figure 9, this groove 2-3 processes the axial direction at spline, and the diameter X of groove 2-3 is greater than spline path Y, and the groove width B of groove 2-3 is greater than the thickness 0.1mm ~ 0.2mm of chassis 1-2.
Be arranged in planet carrier 2 spline 2-2 for making sun gear pad 1, make it not occur phenomenons such as loosening and come off, the excircle dimension (i.e. the maximum outside diameter of chassis 1-2 cylindrical) of sun gear pad 1 is designed to be greater than planet carrier 2 spline endoporus (i.e. the maximum outside diameter of the spline 2-2 of planet carrier 2) 1.5mm ~ 2mm.
Be convenient to be installed on for making sun gear pad 1 in the spline 2-2 of the planet carrier 2 being less than its cylindrical, the material of sun gear pad 1 is elected as has certain flexible spring steel, through Quenching Treatment, makes it have certain hardness, elasticity and wear resistance.
Cylindrical due to sun gear pad 1 is greater than spline endoporus, considers the installation of sun gear pad 1, and need be provided with the opening 1-6 of band ear 1-4 at sun gear pad 1 circumferencial direction, opening 1-6 is provided with pincers hole 1-5, and Circlip tongs easy to use is installed.Control the opening 1-6 size of sun gear pad 1, make sun gear pad 1 be convenient to install, open a groove 1-7 in sun gear pad 1 inside.
Better be fixed in planet carrier 2 spline 2-2 for making sun gear pad 1, excircle dimension 0.8mm ~ 1.0mm is increased on the opposite, opening 1-6 place of sun gear pad 1, namely the width m of projection 1-9 is 0.8mm ~ 1.0mm, as shown in Figure 7, Figure 8, sun gear pad 1 can better be fixed in planet carrier 2, prevent loosening and coming off of sun gear pad 1.
The material that the utility model is selected is spring steel, because spring steel is the main material being used for manufacturing the constitutional detail that various spring and elastic element or similar performance require specially, spring steel has higher limit of elasticity and fatigue strength, and certain plasticity and toughness, to prevent the advantages such as impact fracture.In order to make sun gear pad 1 easily impact briquetting, its thickness general control is at about 2mm, salient point (i.e. the first salient point 1-8 and the second salient point 1-10) diameter be arranged in spline 2-2 is less than the 0.2mm ~ 0.3mm of spline tooth groove width, the number of teeth of spline is the integral multiple of salient point, actual adding, strikes out half product by raw material man-hour, carry out Quenching Treatment again to process, in planet carrier 2, sun gear pad 1 mounting groove only needs one standard cell cutter can be processed simultaneously, carry out the processing of this groove 2-3 while processing spline endoporus, this processing mode is simple to operation.
During assembling, as shown in Figure 5, after two-stage planetary reduction assembly 6 assembles, secondary solar gear 5 is installed, sun gear pad 1 is arranged in primary planet carrier 2, then other correlated parts such as primary planet wheel assembly 3 and one-level sun gear 4 is installed.This sun gear pad 1 prevents secondary solar gear 5 axial float in work, prevent secondary solar gear 5 from producing larger noise with contacting in planet wheel end face operation process in primary planet wheel assembly 3, can prevent Long Term Contact from causing the wearing and tearing of planet wheel end face in secondary solar gear 5 end face and primary planet assembly 3 simultaneously, reduce the working life of secondary solar gear 5 and primary planet wheel.
Specific operation are verified by testing and putting into practice:
In order to verify the reliability of the utility model sun gear gasket construction, we assemble traditional sun gear pad and sun gear pad of the present utility model, test respectively, and the assembly after installing has been carried out strenuous test in 200 hours, the abrasion condition disassembling, detect sun gear pad, sun gear and planet wheel is carried out after test, traditional sun gear pad is not because axially fixing, disassemble this part of rear discovery to be out of shape, planeness is deformed into 0.42mm by 0.03mm when installing, and the both ends of the surface abrasion condition simultaneously contacted with planet wheel with sun gear is more serious.And structure of the present utility model is disassembled rear discovery sun gear pad and is not out of shape, this sun gear pad, sun gear, planet wheel surface contact vestige are comparatively obvious, do not occur the situations such as wearing and tearing.
Claims (9)
1. a sun gear pad, it is characterized in that, be located in the spline (2-2) of planet carrier (2), comprise chassis (1-2), centre on chassis (1-2) is connected with boss (1-1), the centre of boss (1-1) is provided with center hole (1-3), the side on chassis (1-2) is provided with a groove (1-7), be provided with opening (1-6) between groove (1-7) and chassis (1-2), chassis (1-2) is circumferentially provided with the first salient point (1-8) and the second salient point (1-10).
2. a kind of sun gear pad as claimed in claim 1, it is characterized in that, the number of described planet carrier (2) spline (2-2) is the integral multiple of the first salient point (1-8) and the second salient point (1-10) number sum.
3. a kind of sun gear pad as claimed in claim 1 or 2, is characterized in that, described the first salient point (1-8) and the radius of the second salient point (1-10) are less than the width 0.2mm ~ 0.3mm of spline (2-2) upper spline tooth.
4. a kind of sun gear pad as claimed in claim 1, is characterized in that, the width (B) of the groove (2-3) at described planet carrier (2) upper spline place is greater than the thickness 0.1mm ~ 0.2mm on chassis (1-2).
5. a kind of sun gear pad as claimed in claim 1, is characterized in that, the maximum outside diameter of described chassis (1-2) cylindrical is greater than the maximum outside diameter 1.5mm ~ 2mm of the spline (2-2) of planet carrier (2).
6. a kind of sun gear pad as claimed in claim 1, it is characterized in that, the both sides of the circumferentially opening (1-6) on described chassis (1-2) are ear (1-4), and the end of each ear (1-4) is equipped with pincers hole (1-5).
7. a kind of sun gear pad as claimed in claim 1, is characterized in that, described the second salient point (1-10) is located on the projection (1-9) that is connected with chassis (1-2).
8. a kind of sun gear pad as claimed in claim 7, is characterized in that, described projection (1-9) is located at the right opposite of opening (1-6).
9. a kind of sun gear pad as claimed in claim 7 or 8, is characterized in that, the width of described projection (1-9) is 0.8mm ~ 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230590.7U CN204704249U (en) | 2015-04-16 | 2015-04-16 | A kind of sun gear pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520230590.7U CN204704249U (en) | 2015-04-16 | 2015-04-16 | A kind of sun gear pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204704249U true CN204704249U (en) | 2015-10-14 |
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ID=54283869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520230590.7U Expired - Fee Related CN204704249U (en) | 2015-04-16 | 2015-04-16 | A kind of sun gear pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204704249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434753A (en) * | 2018-12-26 | 2019-03-08 | 宁波润烨机械有限公司 | A kind of bearing handling instrument improving centralizer reduction friction ratio |
-
2015
- 2015-04-16 CN CN201520230590.7U patent/CN204704249U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434753A (en) * | 2018-12-26 | 2019-03-08 | 宁波润烨机械有限公司 | A kind of bearing handling instrument improving centralizer reduction friction ratio |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20190416 |