CN202040244U - Rubber friction disc for hydraulic pump - Google Patents
Rubber friction disc for hydraulic pump Download PDFInfo
- Publication number
- CN202040244U CN202040244U CN2011201151829U CN201120115182U CN202040244U CN 202040244 U CN202040244 U CN 202040244U CN 2011201151829 U CN2011201151829 U CN 2011201151829U CN 201120115182 U CN201120115182 U CN 201120115182U CN 202040244 U CN202040244 U CN 202040244U
- Authority
- CN
- China
- Prior art keywords
- hydraulic pump
- rubber friction
- friction disc
- oil hydraulic
- groove
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a friction disc, in particular to a rubber friction disc for a hydraulic pump. The rubber friction disc comprises a core plate, wherein a keyhole is arranged in the middle of the core plate; uniformly distributed annular radiating troughs are arranged on the external edge surface and the frontal surface of the core plate; and the radiating troughs are made of colloids. The rubber friction disc for the hydraulic pump has a simple structure and high radiation performance, can be assembled conveniently, and has long service life.
Description
Technical field
The utility model patent relates to a kind of friction plate, relates in particular to a kind of rubber friction sheet that is used for oil hydraulic pump.
Background technique
All kinds of oil hydraulic pumps of at present traditional oil hydraulic pump industry production mainly are matched in the hydraulic system of engineering machinery, play braking, clutch and gearing respectively, the friction plate that the pump class is used is big inadequately because of the space finite size, and effective utilization area of friction plate is all smaller generally speaking.Because the friction plate useful area is little, just high much to the friction plate performance requirement, under the situation of identical effective utilization area, transmit same moment of torsion different types of friction plate is just had different using effect, the bronze based powder metallurgy friction wafer, the coefficient of kinetic friction is not high enough, generally have only 0.04 to 0.09, static friction coefficient has 0.16, and it is bigger to compare ratio between the two, although it is heat-resisting relatively good, friction factor is also more stable, but its can shake the generation noise, the coefficient of kinetic friction height of paper-base friction wafer when engaging, but material is soft, heat resistance is not enough, uses just show beyond one's ability under the higher load situation.
Summary of the invention
The utility model mainly is to solve the deficiencies in the prior art, provides a kind of coefficient of kinetic friction height, the rubber friction sheet that is used for oil hydraulic pump that static and dynamic friction coefficient is close.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of rubber friction sheet that is used for oil hydraulic pump comprises central layer, and the centre of described central layer is the cover keyhole, and the outer edge surface of described central layer and front are respectively equipped with equally distributed ring-type radiation groove, and described radiation groove is a colloid.
The high resilience of rubber friction sheet, smooth engagement is gentle closes, and does not hinder antithesis, coefficient of kinetic friction height, static and dynamic friction coefficient is close, and the material light specific gravity can bear bigger load, is fit to be applied to the work of all kinds of hydraulic system pump classes.
As preferably, the edge of described cover keyhole is the recessed key and the protruding key of continuous distributed, and described groove is a straight line shape, and described tongue is circular-arc.
As preferably, described recessed key and protruding key have 9 respectively, and the knuckle place of described recessed key and protruding key is an arc transition.
As preferably, described radiation groove has 180, and the groove width of described radiation groove is 1.3mm, and the degree of depth of described radiation groove is 0.5mm.
Therefore, the rubber friction sheet that is used for oil hydraulic pump of the present utility model, simple in structure, the thermal diffusivity height is convenient to assembling, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, a kind of rubber friction sheet that is used for oil hydraulic pump, comprise central layer 1, the centre of described central layer 1 is cover keyhole 2, the outer edge surface of described central layer 1 and front are respectively equipped with equally distributed ring-type radiation groove 3, described radiation groove is a colloid, the edge of described cover keyhole 2 is the recessed key 4 and the protruding key 5 of continuous distributed, described groove 4 is a straight line shape, and described tongue 5 is circular-arc, and described recessed key 4 and protruding key 5 have 9 respectively, the knuckle place of described recessed key 4 and protruding key 5 is an arc transition, described radiation groove 3 has 180, and the groove width of described radiation groove 3 is 1.3mm, and the degree of depth of described radiation groove 3 is 0.5mm.
Claims (4)
1. rubber friction sheet that is used for oil hydraulic pump, it is characterized in that: comprise central layer (1), the centre of described central layer (1) is cover keyhole (2), and the outer edge surface of described central layer (1) and front are respectively equipped with equally distributed ring-type radiation groove (3), and described radiation groove is a colloid.
2. the rubber friction sheet that is used for oil hydraulic pump according to claim 1, it is characterized in that: the edge of described cover keyhole (2) is the recessed key (4) and the protruding key (5) of continuous distributed, described groove (4) is a straight line shape, and described tongue (5) is circular-arc.
3. the rubber friction sheet that is used for oil hydraulic pump according to claim 2 is characterized in that: described recessed key (4) and protruding key (5) have 9 respectively, and the knuckle place of described recessed key (4) and protruding key (5) is an arc transition.
4. the rubber friction sheet that is used for oil hydraulic pump according to claim 1 and 2 is characterized in that: described radiation groove (3) has 180, and the groove width of described radiation groove (3) is 1.3mm, and the degree of depth of described radiation groove (3) is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201151829U CN202040244U (en) | 2011-04-19 | 2011-04-19 | Rubber friction disc for hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201151829U CN202040244U (en) | 2011-04-19 | 2011-04-19 | Rubber friction disc for hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040244U true CN202040244U (en) | 2011-11-16 |
Family
ID=44967690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201151829U Expired - Fee Related CN202040244U (en) | 2011-04-19 | 2011-04-19 | Rubber friction disc for hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040244U (en) |
-
2011
- 2011-04-19 CN CN2011201151829U patent/CN202040244U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20111116 Termination date: 20170419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |