CN218863094U - Hybrid bearing for hydraulic pump or hydraulic motor - Google Patents
Hybrid bearing for hydraulic pump or hydraulic motor Download PDFInfo
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- CN218863094U CN218863094U CN202223002865.0U CN202223002865U CN218863094U CN 218863094 U CN218863094 U CN 218863094U CN 202223002865 U CN202223002865 U CN 202223002865U CN 218863094 U CN218863094 U CN 218863094U
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- hydraulic pump
- hydraulic
- hydraulic motor
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Abstract
The application provides a hybrid bearing for hydraulic pump or hydraulic motor, the bearing includes: the bearing inner ring is matched with the cylinder body; the bearing outer ring is arranged on the bearing inner ring; wherein, an oil groove is arranged on the bearing outer ring; high-pressure oil is filled in the oil groove, and the hydraulic pressure generated by the high-pressure oil is used for balancing the radial acting force of the cylinder body; the oil groove is arranged at a position opposite to the radial acting force of the cylinder body; introducing high-pressure oil into the oil groove from an oil outlet of the hydraulic pump, and filling the oil groove with the high-pressure oil; the application provides a pair of a hybrid bearing for hydraulic pump or hydraulic motor solves hydraulic pump or hydraulic motor and uses traditional mechanical bearing development cycle length, and rotational speed ability and bearing capacity are restricted and life is short problem.
Description
Technical Field
The application belongs to the technical field of hydraulic pumps, and particularly relates to a hybrid bearing for a hydraulic pump or a hydraulic motor.
Background
The rotating speed and the bearing capacity of the bearing are directly related to the service life of the hydraulic pump or the hydraulic motor.
The traditional mechanical bearing has long development period, limited rotating speed capacity and bearing capacity and short service life, and the factors directly restrict the professional development of a hydraulic pump or a hydraulic motor.
SUMMERY OF THE UTILITY MODEL
To the above technical problem, the present application provides a hybrid bearing for a hydraulic pump or a hydraulic motor, the bearing includes:
the bearing inner ring is matched with the cylinder body;
the bearing outer ring is arranged on the bearing inner ring; wherein, an oil groove is arranged on the bearing outer ring; high-pressure oil is filled in the oil groove, and hydraulic pressure generated by the high-pressure oil is used for balancing radial acting force of the cylinder body.
Preferably, the oil groove is provided at a position opposite to a radial force of the cylinder block.
Preferably, high pressure oil is introduced into the oil sump from an oil outlet of the hydraulic pump and fills the oil sump.
Preferably, high pressure oil is introduced into the oil sump from an oil inlet of the hydraulic motor and fills the oil sump.
Preferably, the bearing outer ring is fixedly installed on a housing of the hydraulic pump or the hydraulic motor through a pin shaft.
Preferably, the bearing inner ring and/or the bearing outer ring are provided with micro-textures, and the micro-textures are used for storing oil entering the hydraulic pump or hydraulic motor housing cavity.
The beneficial technical effect of this application:
the application provides a pair of hybrid bearing for hydraulic pump or hydraulic motor solves hydraulic pump or hydraulic motor and uses traditional mechanical bearing development cycle length, and rotational speed ability and bearing capacity are limited and life is short problem.
Drawings
FIG. 1 is a schematic diagram of the acting force of a hybrid bearing provided by an embodiment of the application;
FIG. 2 is a schematic diagram of an application of a hybrid bearing provided by an embodiment of the present application to a hydraulic pump;
wherein: 1-bearing inner ring, 2-bearing outer ring, 3-cylinder block, 4-plunger component, 5-return disc and 6-swash plate.
Detailed Description
Referring to fig. 1-2, the present application provides a hybrid bearing for a hydraulic pump or a hydraulic motor, which is composed of a cylinder block, a plunger assembly, a return disc, a swash plate, a hybrid bearing, and the like. Wherein, the hybrid bearing comprises bearing inner race and bearing outer lane.
Wherein, set up the oil groove on the bearing outer race, hydraulic pressure force Fp that the hydraulic pump export or the hydraulic motor import (P mouth) high-pressure fluid introduction oil groove produced and the radial force Fj atress equilibrium of cylinder body to realize the supporting role of cylinder body. Meanwhile, the bearing inner ring or the bearing outer ring is provided with a microtexture, so that the effects of oil storage and lubrication are achieved.
The problem that hydraulic pump or hydraulic motor use traditional mechanical bearing development cycle length, rotational speed ability and bearing capacity are limited and life is short is solved in this application.
In other embodiments of the present application, the hydraulic pump or the hydraulic motor using the hybrid bearing of the present application is mainly composed of a cylinder block 3, a plunger assembly 4, a return disc 5, a swash plate 6, and a hybrid bearing.
Wherein, the hybrid bearing comprises bearing inner race 1 and bearing outer race 2. The plunger assembly 4 makes reciprocating linear motion in the cylinder body 3 and makes elliptic track motion on the swash plate 6 under the constraint of the return plate 5; the bearing inner ring 1 is connected with the cylinder body 3, the cylinder body 3 drives the bearing inner ring 1 to rotate at a high speed, and the bearing inner ring 1 plays a role of supporting the cylinder body; the bearing inner ring 1 is matched with the bearing outer ring 2, an oil groove is formed in the bearing outer ring 2, high-pressure oil enters the oil groove from the outlet of a hydraulic pump or the inlet (P port) of a hydraulic motor, the generated hydraulic force Fp is offset with the radial force Fj generated by the plunger assembly 4 on the cylinder body 3, and stress balance is established.
Meanwhile, the bearing inner ring 1 or the bearing outer ring 2 is provided with a micro-texture for storing oil entering the hydraulic pump or the hydraulic motor shell cavity to play roles of lubricating and cooling. Under the influence of static pressure bearing and dynamic pressure effect, the supporting function of the hydraulic bearing on the cylinder 3 is realized.
In other embodiments of the present application, the hydraulic pump or hydraulic motor using the hybrid bearing is mainly composed of a cylinder block 3, a plunger assembly 4, a return plate 5, a swash plate 6, and the hybrid bearing. Wherein, the hybrid bearing comprises bearing inner race 1 and bearing outer race 2. The plunger assembly 4 makes reciprocating linear motion in the cylinder body 3 and makes elliptic motion on the swash plate 6 under the constraint of the return plate 5; the bearing inner ring 1 is connected with the cylinder body 3, the cylinder body 3 drives the bearing inner ring 1 to rotate at a high speed, and the bearing inner ring 1 plays a role in supporting the cylinder body.
In a feasible implementation mode, the bearing inner ring 1 is matched with the bearing outer ring 2, an oil groove is formed in the bearing outer ring 2, high-pressure oil enters the oil groove from the outlet of a hydraulic pump or the inlet (P port) of a hydraulic motor, the generated hydraulic pressure Fp is offset with the radial force Fj generated by the plunger assembly 4 on the cylinder body 3, and stress balance is established.
Meanwhile, the bearing inner ring 1 or the bearing outer ring 2 is provided with a microtexture for storing oil entering the hydraulic pump or the hydraulic motor shell cavity to play roles of lubricating and cooling. Under the influence of static pressure bearing and dynamic pressure effect, the supporting effect of the hydraulic bearing on the cylinder 3 is realized.
Claims (6)
1. A hybrid bearing for a hydraulic pump or a hydraulic motor, characterized in that the bearing comprises:
the bearing inner ring is matched with the cylinder body;
the bearing outer ring is arranged on the bearing inner ring; wherein, an oil groove is arranged on the bearing outer ring; high-pressure oil is filled in the oil groove, and hydraulic pressure generated by the high-pressure oil is used for balancing radial acting force of the cylinder body.
2. The hybrid bearing for a hydraulic pump or a hydraulic motor according to claim 1, wherein the oil groove is provided at a position opposite to a radial force of the cylinder block.
3. The hybrid bearing for a hydraulic pump or a hydraulic motor according to claim 2, wherein high pressure oil is introduced from an oil outlet of a hydraulic pump into the oil sump and fills the oil sump.
4. The hybrid bearing for a hydraulic pump or a hydraulic motor according to claim 2, wherein high pressure oil is introduced from an oil inlet of the hydraulic motor into the oil groove and fills the oil groove.
5. The hybrid bearing for a hydraulic pump or a hydraulic motor according to claim 2, wherein the bearing outer race is fixedly mounted on a housing of the hydraulic pump or the hydraulic motor by a pin shaft.
6. The hybrid bearing for a hydraulic pump or a hydraulic motor according to claim 5, wherein the inner bearing ring and/or the outer bearing ring is provided with a micro texture for storing oil entering the hydraulic pump or the hydraulic motor housing cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223002865.0U CN218863094U (en) | 2022-11-11 | 2022-11-11 | Hybrid bearing for hydraulic pump or hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223002865.0U CN218863094U (en) | 2022-11-11 | 2022-11-11 | Hybrid bearing for hydraulic pump or hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218863094U true CN218863094U (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223002865.0U Active CN218863094U (en) | 2022-11-11 | 2022-11-11 | Hybrid bearing for hydraulic pump or hydraulic motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN218863094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118855851A (en) * | 2024-07-05 | 2024-10-29 | 中墨源科技(上海)有限公司 | Axial piston pump bearing assembly and axial piston pump |
-
2022
- 2022-11-11 CN CN202223002865.0U patent/CN218863094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118855851A (en) * | 2024-07-05 | 2024-10-29 | 中墨源科技(上海)有限公司 | Axial piston pump bearing assembly and axial piston pump |
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