CN216767663U - Thrust plate structure for reducing abrasion of plunger pump swash plate - Google Patents
Thrust plate structure for reducing abrasion of plunger pump swash plate Download PDFInfo
- Publication number
- CN216767663U CN216767663U CN202122668280.1U CN202122668280U CN216767663U CN 216767663 U CN216767663 U CN 216767663U CN 202122668280 U CN202122668280 U CN 202122668280U CN 216767663 U CN216767663 U CN 216767663U
- Authority
- CN
- China
- Prior art keywords
- swash plate
- plate
- thrust plate
- thrust
- plunger pump
- 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.)
- Active
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a thrust plate structure for reducing abrasion of a plunger pump swash plate, relates to the field of hydraulic plunger pumps, is arranged between a sliding shoe and a swash plate seat, and comprises a swash plate arranged on the swash plate seat and a thrust plate arranged between the swash plate and the sliding shoe, wherein the thrust plate is contacted with the swash plate and the sliding shoe. The utility model avoids that the swash plate always bears continuous and alternating axial pressing force in the area of the oil discharge cavity of the piston shoe; through the rotation of the thrust plate, the abrasion is uniform, the phenomenon of concentrated abrasion is avoided, and the service life of the plunger pump is prolonged.
Description
Technical Field
The utility model relates to the field of hydraulic plunger pumps, in particular to a thrust plate structure for reducing abrasion of a swash plate of a plunger pump.
Background
The swash plate is a basic part for realizing variables of the variable plunger pump, is used as a key part for realizing variables in the variable hydraulic plunger pump, and meets the requirement of outputting specific flow of the plunger pump.
In the actual working process of the plunger pump, the main functions of the swash plate are as follows: the two semicircular arcs of the swash plate are matched with the swash plate seat, and the semicircular arcs play a role in supporting variables; the plane of the swash plate plays a role of supporting the sliding shoes and bears pressing force from the plunger sliding shoes of the oil discharge cavity.
The working principle of realizing variables through the plunger pump finds that: the swash plate plane plays a role of supporting the piston shoes in the variable displacement piston pump and bears the axial pressing force from the piston shoes in the oil discharge cavity, the pressing force always acts on the oil discharge cavity, and the oil suction cavity does not bear the axial pressing force of the piston shoes.
Through dismantling the variable displacement plunger pump that has failed, discover that the main trouble appears as: the swash plate supports the plane of the piston shoes, obvious abrasion traces and serious pits even appear in the area of an oil discharge cavity of the piston shoes, and the piston shoes always cling to the plane of the swash plate to move, so that the abrasion causes damage to the moving plane where the piston shoes and the swash plate are attached, finally, the static pressure balance failure of the piston shoes is caused, and the damage to the piston pump is caused.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in the existing plunger pump structure, a swash plate bears axial pressing force continuously alternating in an oil discharge cavity area of a plunger piston shoe, so that the plane of the swash plate is seriously abraded in the oil discharge cavity area, and the problems of piston shoe damage and failure of the plunger pump are caused.
In order to achieve the above object, the technical solution of the present invention provides a thrust plate structure for reducing wear of a plunger pump swash plate, which is arranged between a slipper and a swash plate base, and includes a swash plate arranged on the swash plate base and a thrust plate arranged between the swash plate and the slipper, wherein the thrust plate is in contact with the swash plate and the slipper.
Preferably, the upper surface of the swash plate is provided with a groove for preventing the thrust plate from moving along the radial direction of the swash plate, and the thrust plate is arranged in the groove.
Preferably, the thrust plate mates with the groove.
Preferably, the outer diameter of the thrust plate is smaller than the inner diameter of the groove.
Preferably, in a radial direction of the swash plate, a thickness between an outer edge of an end of the swash plate close to the swash plate base and the groove wall is larger than a thickness between an outer edge of an end of the swash plate far from the swash plate base and the groove wall.
Preferably, the thrust plate is rotatable axially along itself.
Preferably, the swash plate is provided with a projection at both ends in the radial direction, the projection being engaged with the swash plate base.
Preferably, the lower surface of the projection is formed in a semicircular arc shape.
In summary, the utility model has the following beneficial technical effects:
according to the utility model, the thrust plate is added on the swash plate, and can flexibly rotate in the swash plate, so that the swash plate is prevented from always bearing continuous and alternating axial pressing force in the area of the plunger piston shoe oil discharge cavity; through the rotation of the thrust plate, the abrasion is uniform, the phenomenon of concentrated abrasion is avoided, and the service life of the plunger pump is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view for showing the installation position of the present invention;
fig. 3 is a schematic diagram for showing the relative motion area of the swash plate and the slipper.
Reference numerals: 1. a swash plate; 2. a thrust plate; 3. a slipper; 4. a swash plate base; 5. an oil discharge area; 6. an oil absorption region.
Detailed Description
The present invention is described in further detail below with reference to figures 1-3.
The embodiment of the utility model discloses a thrust plate structure for reducing abrasion of a plunger pump swash plate, which is arranged between a slipper 3 and a swash plate seat 4 and comprises a swash plate 1 and a thrust plate 2.
The swash plate 1 extends outwards along the radial two ends to form convex blocks which are matched with the swash plate seat 4, and the bottom surfaces of the convex blocks are in a semicircular arc shape, so that the whole structure is supported; the upper surface of the swash plate 1 is provided with a groove, and the thrust plate 2 is arranged in the groove and matched with the groove; the upper surface of the thrust plate 2 is attached to the bottom of the sliding shoe 3, and the lower surface of the thrust plate is attached to the bottom of the groove.
Wherein, the inner diameter of the concave surface of the swash plate 1 is larger than the outer diameter of the thrust plate 2; further, in the radial direction of the swash plate 1, the thickness between the outer edge of the end of the swash plate 1 close to the swash plate base 4 and the groove wall is larger than the thickness between the outer edge of the end far from the swash plate base 4 and the groove wall.
The slipper 3 originally directly acts on the upper plane of the swash plate 1, a groove is arranged on the upper plane of the swash plate 1, and the thrust plate 2 is arranged in the groove, so that the slipper 3 originally contacts with the plane of the swash plate 1 and is switched into planar joint motion of the slipper 3 and the thrust plate 2.
Because the swash plate 1 is subjected to the axial pressing force of the sliding shoes 3 in the oil discharge area 5, the original structure ensures that the axial pressing force acting area of the sliding shoes 3 on the swash plate 1 is always fixed because the swash plate 1 and the sliding shoes 3 are fixed on the acting plane, so that the inclined plane of the oil discharge area 5 is seriously abraded after long-time work.
By providing the thrust plate 2 so as to freely rotate in the swash plate 1, it is possible to disperse the wear of such a fixed area to some extent, thereby reducing the degree of local wear.
In addition, when the thrust plate 2 is worn seriously, so that the variable displacement plunger pump can not work continuously, the aim of quick maintenance can be fulfilled by replacing the thrust plate 2.
The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present invention.
Claims (8)
1. The utility model provides a reduce thrust plate structure of plunger pump sloping cam plate wearing and tearing, establishes between piston shoes (3) and sloping cam plate seat (4), its characterized in that: the anti-skid device is characterized by comprising a swash plate (1) arranged on a swash plate seat (4) and a thrust plate (2) arranged between the swash plate (1) and a slipper (3), wherein the thrust plate (2) is in contact with the swash plate (1) and the slipper (3).
2. The thrust plate structure for reducing wear of a swash plate of a plunger pump according to claim 1, wherein: the upper surface of the swash plate (1) is provided with a groove for preventing the thrust plate (2) from moving along the radial direction of the swash plate (1), and the thrust plate (2) is arranged in the groove.
3. The thrust plate structure for reducing wear of a swash plate of a plunger pump according to claim 2, wherein: the thrust plate (2) is matched with the groove.
4. A thrust plate structure for reducing wear of a swash plate of a plunger pump according to claim 3, wherein: the outer diameter of the thrust plate (2) is smaller than the inner diameter of the groove.
5. A thrust plate structure for reducing wear of a swash plate of a plunger pump according to claim 3, wherein: the thickness between the outer edge of the end part of the swash plate (1) close to the swash plate seat (4) and the groove wall is larger than that between the outer edge of the end part far away from the swash plate seat (4) and the groove wall along the radial direction of the swash plate (1).
6. A thrust plate structure for reducing wear of a swash plate of a plunger pump according to any one of claims 1 to 5, wherein: the thrust plate (2) can rotate along the center of the thrust plate.
7. The thrust plate structure for reducing wear of a swash plate of a plunger pump according to claim 1, wherein: the two ends of the swash plate (1) in the radial direction are provided with convex blocks matched with the swash plate seat (4).
8. The thrust plate structure for reducing wear of a swash plate of a plunger pump according to claim 7, wherein: the lower surface of the lug is in a semicircular arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122668280.1U CN216767663U (en) | 2021-11-03 | 2021-11-03 | Thrust plate structure for reducing abrasion of plunger pump swash plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122668280.1U CN216767663U (en) | 2021-11-03 | 2021-11-03 | Thrust plate structure for reducing abrasion of plunger pump swash plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767663U true CN216767663U (en) | 2022-06-17 |
Family
ID=81960948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122668280.1U Active CN216767663U (en) | 2021-11-03 | 2021-11-03 | Thrust plate structure for reducing abrasion of plunger pump swash plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767663U (en) |
-
2021
- 2021-11-03 CN CN202122668280.1U patent/CN216767663U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9410540B2 (en) | Variable displacement hydraulic motor/pump | |
| CN111692063B (en) | Floating swash plate follow-up spherical hinge hinged conical plunger variable pump/motor rotating assembly | |
| CN216767663U (en) | Thrust plate structure for reducing abrasion of plunger pump swash plate | |
| JPS5838633B2 (en) | swash plate pump | |
| CN201196146Y (en) | Cambered axle type spherical surface valve axial plunger variable displacement pump | |
| US3263623A (en) | Piston pump improvement | |
| CN210033708U (en) | High-low speed switching device, hydraulic motor and excavator | |
| CN205841200U (en) | Rotary compressor | |
| US9644480B2 (en) | Fluid pressure rotary machine | |
| JPH05113173A (en) | Swash plate type liquid pressure rotary machine | |
| CN101571116A (en) | Full-oil-free lubrication piston reciprocating air compressor | |
| CN108488051A (en) | Aviation axial plunger hydraulic pump and its swash plate | |
| CN114382672B (en) | Swash plate sliding shoe compression structure in hydraulic plunger pump and plunger pump with same | |
| CN201461719U (en) | Wear-resistant hydraulic motor crankshaft structure | |
| CN219911046U (en) | Friction pair structure | |
| CN216241131U (en) | Plunger for axial plunger pump and axial plunger pump | |
| CN110067743B (en) | Slide plate and plunger pump or motor comprising same | |
| JP7349942B2 (en) | Swash plate type hydraulic rotating machine | |
| CN216714623U (en) | Plunger piston shoe assembly, plunger pump, plunger motor and operation machine | |
| CN2744872Y (en) | End-face compensation and oil distribution radial-plunger type hydraulic motor | |
| CN216242235U (en) | Combined piston ring | |
| CN109826769B (en) | Variable mechanism capable of prolonging service life of main pump | |
| CN112576470A (en) | Auxiliary mechanism of axial plunger pump return disc | |
| CN210565035U (en) | Wear-resistant piston of concrete pump | |
| CN215762063U (en) | Swash plate structure of oil film lubrication and floating support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |