CN205349688U - Hydrostatic transmission's four groove valve plates - Google Patents
Hydrostatic transmission's four groove valve plates Download PDFInfo
- Publication number
- CN205349688U CN205349688U CN201521083983.6U CN201521083983U CN205349688U CN 205349688 U CN205349688 U CN 205349688U CN 201521083983 U CN201521083983 U CN 201521083983U CN 205349688 U CN205349688 U CN 205349688U
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- CN
- China
- Prior art keywords
- cavity
- oil sucting
- pumping
- oil
- hydrostatic transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 20
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 238000005086 pumping Methods 0.000 claims description 56
- 239000003921 oil Substances 0.000 abstract description 60
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 8
- 230000007704 transition Effects 0.000 abstract 1
- 230000006837 decompression Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to a valve plate, specific hydrostatic transmission's four groove valve plates that says so belongs to valve plate technical field. It includes the valve plate body, the oil absorption chamber that is equipped with waist shape on the valve plate body with press the oil pocket, the oil absorption chamber with press transition region between the oil pocket for the choke -out region. The oil absorption chamber includes first oil absorption chamber and two the second oil absorption chambeies of distribution in first oil absorption chamber both sides. Second oil absorption chamber is equipped with oil absorption chamber triangular groove towards the regional one end of choke -out. The pressure oil pocket includes first pressure oil pocket and two the seconds pressure oil pockets of distribution in second pressure oil pocket both sides, and the second presses the oil pocket to be equipped with pressure oil pocket triangular groove towards the regional one end of choke -out. The utility model has the advantages of simple and compact structure, rationally, the emergence that appears atress unbalance phenomena between hydrostatic transmission's valve plate and the cylinder body be can reduce, vibration and noise that hydraulic oil flows and produces are reduced.
Description
Technical field
This utility model relates to a kind of valve plate, and four groove valve plates of a kind of hydrostatic transmission, belong to valve plate technical field specifically.
Background technology
Along with the development of National agricultural machinery, increasing agricultural machinery uses hydraulic system, and hydrostatic transmission is a kind of main flow hydraulic product for the running gear of agricultural machinery.Hydrostatic transmission is pump and motor integrated products, and the variable moment required when hydrostatic transmission is in maximum pump discharge, loads is very big.Valve plate belongs to core part in hydrostatic transmission, and it is the offer oil-distribution port that runs up.Valve plate and cylinder body are friction pairs important a pair in device, and its ruuning situation directly affects the properly functioning of system.
The triangular groove that existing valve plate is offered is mainly used in reducing noise and vibration.When two triangular grooves offered by valve plate, in appearance, position is unstable, and cylinder body is when high-speed motion, and between valve plate and cylinder body, motion produces out-of-balance force, shows as and shakes when car starts, and handle does not surely live, and moves to huge discharge direction.
Summary of the invention
The purpose of this utility model is in that to overcome above-mentioned weak point, thus providing a kind of hydrostatic transmission four groove valve plate, it is possible to reduce the generation occurring stress energy imbalance between valve plate and cylinder body, reduce the vibration and noise that running of hydraulic power oil produces.
According to the technical scheme that this utility model provides, four groove valve plates of hydrostatic transmission include flow disk body, it is characterized in that: flow disk body is provided with oil sucting cavity and the pumping cavity of kidney-shaped, and the transitional region between oil sucting cavity and pumping cavity is choke-out region；Oil sucting cavity includes the first oil sucting cavity and is distributed in two the second oil sucting cavities of the first oil sucting cavity both sides, the first oil sucting cavity and two the second oil sucting cavities and is distributed on same circumferencial direction；Described second oil sucting cavity is provided with oil sucting cavity triangular groove towards one end, choke-out region, and the width dimensions of oil sucting cavity triangular groove diminishes near the second oil sucting cavity gradually to away from the second oil sucting cavity direction；Pumping cavity includes the first pumping cavity and is distributed in two the second pumping cavities of the second pumping cavity both sides, the first pumping cavity and two the second pumping cavities and is distributed on same circumferencial direction；Described second pumping cavity is provided with pumping cavity triangular groove towards one end, choke-out region, and the width dimensions of pumping cavity triangular groove diminishes near the second pumping cavity gradually to away from the second pumping cavity direction.
Further, flow disk body is circular.
Further, oil sucting cavity and pumping cavity distribution symmetrical above and below.
Further, the first oil sucting cavity and the second oil sucting cavity are kidney-shaped structure.
Further, the first pumping cavity and the second pumping cavity are kidney-shaped structure.
Further, the two ends up and down of flow disk body are provided with the positioning lug of protrusion, and positioning lug is provided with hole, location.
Further, two the second symmetrical distributions of oil sucting cavity.
Further, two the second symmetrical distributions of pumping cavity.
Compared with the prior art this utility model has the advantage that
This utility model simple in construction, compact, reasonable, it is possible to reduce the generation that stress energy imbalance occurs between valve plate and the cylinder body of hydrostatic transmission, reduce the vibration and noise that running of hydraulic power oil produces.
Accompanying drawing explanation
Fig. 1 is this utility model front view.
Description of reference numerals: 1-flow disk body, 2-positioning lug, 3-position hole, 4-the first oil sucting cavity, 5-the second oil sucting cavity, 6-oil sucting cavity triangular groove, 7-the first pumping cavity, 8-the second pumping cavity, 9-pumping cavity triangular groove, 10-choke-out region.
Detailed description of the invention
This utility model will be further described in conjunction with the embodiment in accompanying drawing below:
As it is shown in figure 1, this utility model mainly includes the flow disk body 1 of circle, flow disk body 1 is provided with oil sucting cavity and the pumping cavity of kidney-shaped, oil sucting cavity and pumping cavity distribution symmetrical above and below, and oil sucting cavity and pumping cavity operationally act on can be changed mutually.Transitional region between oil sucting cavity and pumping cavity is choke-out region 10.
Oil sucting cavity includes the first oil sucting cavity 4 and is distributed in two the second oil sucting cavities 5 of the first oil sucting cavity 4 both sides, two the second symmetrical distributions of oil sucting cavity 5.First oil sucting cavity 4 and two the second oil sucting cavities 5 are distributed on same circumferencial direction.First oil sucting cavity 4 and the second oil sucting cavity 5 are kidney-shaped structure.
Described second oil sucting cavity 5 is provided with oil sucting cavity triangular groove 6 towards one end, choke-out region 10, and the width dimensions of oil sucting cavity triangular groove 6 diminishes near the second oil sucting cavity 5 gradually to away from the second oil sucting cavity 5 direction.Oil sucting cavity triangular groove 6 makes to increase between high pressure and low pressure pre-loading and pre-decompression time, increases leakage rate, reduces cylinder body pressure reduction before and after choke-out region, makes cylinder body stress balance, reduces unbalanced moments.
Pumping cavity includes the first pumping cavity 7 and is distributed in two the second pumping cavities 8 of the second pumping cavity 8 both sides, two the second symmetrical distributions of pumping cavity 8.First pumping cavity 7 and two the second pumping cavities 8 are distributed on same circumferencial direction.First pumping cavity 7 and the second pumping cavity 8 are kidney-shaped structure.
Described second pumping cavity 8 is provided with pumping cavity triangular groove 9 towards one end, choke-out region 10, and the width dimensions of pumping cavity triangular groove 9 diminishes near the second pumping cavity 8 gradually to away from the second pumping cavity 8 direction.Pumping cavity triangular groove 9 makes to increase between high pressure and low pressure pre-loading and pre-decompression time, increases leakage rate, reduces cylinder body pressure reduction before and after choke-out region, makes cylinder body stress balance, reduces unbalanced moments.
The two ends up and down of described flow disk body 1 are provided with the positioning lug 2 of protrusion, and positioning lug 2 is provided with hole 3, location, realizes the location and installation of flow disk body 1 by positioning hole 3.
Operation principle of the present utility model is: in use, and when cylinder bore enters oil suction with force feed intersection, triangular groove makes hydraulic oil inside cylinder body have the connection of short time, and balance cylinder block is in the pressure differential through choke-out region.It is thus possible to reduce the generation that stress energy imbalance occurs between valve plate and cylinder body, reduce the vibration and noise that running of hydraulic power oil produces.
Claims (8)
1. four groove valve plates of hydrostatic transmission, including flow disk body (1), is characterized in that: flow disk body (1) is provided with oil sucting cavity and the pumping cavity of kidney-shaped, the transitional region between oil sucting cavity and pumping cavity is choke-out region (10)；Oil sucting cavity includes the first oil sucting cavity (4) and is distributed in two the second oil sucting cavities (5) of the first oil sucting cavity (4) both sides, the first oil sucting cavity (4) and two the second oil sucting cavities (5) and is distributed on same circumferencial direction；Described second oil sucting cavity (5) is provided with oil sucting cavity triangular groove (6) towards choke-out region (10) one end, and the width dimensions of oil sucting cavity triangular groove (6) diminishes near the second oil sucting cavity (5) gradually to away from the second oil sucting cavity (5) direction；Pumping cavity includes the first pumping cavity (7) and is distributed in two the second pumping cavities (8) of the second pumping cavity (8) both sides, the first pumping cavity (7) and two the second pumping cavities (8) and is distributed on same circumferencial direction；Described second pumping cavity (8) is provided with pumping cavity triangular groove (9) towards choke-out region (10) one end, and the width dimensions of pumping cavity triangular groove (9) diminishes near the second pumping cavity (8) gradually to away from the second pumping cavity (8) direction.
2. four groove valve plates of hydrostatic transmission as claimed in claim 1, is characterized in that: described flow disk body (1) is circle.
3. four groove valve plates of hydrostatic transmission as claimed in claim 1, is characterized in that: described oil sucting cavity and pumping cavity distribution symmetrical above and below.
4. four groove valve plates of hydrostatic transmission as claimed in claim 1, is characterized in that: described first oil sucting cavity (4) and the second oil sucting cavity (5) are kidney-shaped structure.
5. four groove valve plates of hydrostatic transmission as claimed in claim 1, is characterized in that: described first pumping cavity (7) and the second pumping cavity (8) are kidney-shaped structure.
6. four groove valve plates of hydrostatic transmission as claimed in claim 1, is characterized in that: the two ends up and down of described flow disk body (1) are provided with the positioning lug (2) of protrusion, and positioning lug (2) is provided with hole, location (3).
7. four groove valve plates of hydrostatic transmission as claimed in claim 1, is characterized in that: said two the second oil sucting cavity (5) symmetrical distribution.
8. four groove valve plates of hydrostatic transmission as claimed in claim 1, is characterized in that: said two the second pumping cavity (8) symmetrical distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521083983.6U CN205349688U (en) | 2015-12-23 | 2015-12-23 | Hydrostatic transmission's four groove valve plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521083983.6U CN205349688U (en) | 2015-12-23 | 2015-12-23 | Hydrostatic transmission's four groove valve plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349688U true CN205349688U (en) | 2016-06-29 |
Family
ID=56168960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521083983.6U Active CN205349688U (en) | 2015-12-23 | 2015-12-23 | Hydrostatic transmission's four groove valve plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205349688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422433A (en) * | 2015-12-23 | 2016-03-23 | 无锡威孚精密机械制造有限责任公司 | Four-groove valve plate of hydrostatic transmission device |
| CN108916033A (en) * | 2018-06-22 | 2018-11-30 | 太原理工大学 | Can balancing moment and alleviate impact four oil-distribution port valve plates |
-
2015
- 2015-12-23 CN CN201521083983.6U patent/CN205349688U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422433A (en) * | 2015-12-23 | 2016-03-23 | 无锡威孚精密机械制造有限责任公司 | Four-groove valve plate of hydrostatic transmission device |
| CN108916033A (en) * | 2018-06-22 | 2018-11-30 | 太原理工大学 | Can balancing moment and alleviate impact four oil-distribution port valve plates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 202, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Weifu Precision Machinery Manufacturing Co.,Ltd. Country or region after: China Address before: No. 202 Chengnan Road, New District, Wuxi City, Jiangsu Province, 214028 Patentee before: Wuxi Weifu Precision Machinery Manufacturing Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |