Automobile plunger pump bearing

Abstract

The utility model discloses an automobile plunger pump bearing which comprises an inner ring, an outer ring, a steel ball, a retaining assembly and a sealing assembly, the outer ring is sleeved on the outer wall of the inner ring, the steel ball is arranged on one side of the inner ring opposite to the outer ring, the retaining assembly is arranged on one side of the inner ring opposite to the outer ring, and the retaining assembly is used for limiting the position of the steel ball. The sealing assembly comprises a sealing ring arranged on the side, opposite to the outer ring, of the inner ring, and a limiting piece used for limiting movement of the sealing assembly is arranged at the joint of the sealing ring and the inner ring. By means of the design of the limiting piece and the fixing piece, during use, the sealing ring is moved to the position between the inner ring and the outer ring, then the position of the sealing ring is limited through the limiting piece so that the sealing ring can not move, and finally the position of the sealing ring is fixed through the fixing piece, so that the sealing ring is prevented from being damaged when the position of the sealing ring is installed. And due to sliding of the sealing ring, the sealing ring is difficult to install.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to an automotive plunger pump bearing. Background Technology

[0002] The piston pump bearing is a core component of the piston pump, responsible for supporting the high-speed rotation of the piston and bearing radial / axial loads. Its performance directly affects the pump's efficiency and lifespan. High-precision rolling bearings are usually used, which have high pressure resistance, wear resistance, and low friction characteristics. They need to be used in conjunction with a lubrication system to ensure stability.

[0003] Bearings, as core components of mechanical transmission systems, mainly consist of an inner ring, an outer ring, steel balls, a cage, and a seal. Traditional bearings employ a double-seal design, which has significant drawbacks in its installation process: when fixing the seal, it is necessary to first deform the seal by compression, and then forcibly embed the deformed seal into the gap between the inner and outer rings. Due to the elasticity of the seal material, the seal will slide during the compression process, making it difficult to accurately control the installation position of the seal. Therefore, this solution proposes an automotive plunger pump bearing to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide an automotive plunger pump bearing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive plunger pump bearing, comprising:

[0006] Inner circle;

[0007] The outer ring is fitted onto the outer wall of the inner ring;

[0008] A steel ball, wherein the steel ball is disposed on one side of the inner ring opposite to the outer ring;

[0009] A retaining component is disposed on one side of the inner ring and the outer ring, the retaining component being used to limit the position of the steel ball;

[0010] A sealing assembly includes a sealing ring disposed on one side opposite to an inner ring and an outer ring. A limiting member is provided at the connection between the sealing ring and the inner ring to restrict the movement of the sealing assembly. A fixing member is provided on the top of the sealing ring to fix the position of the sealing ring.

[0011] Preferably, the inner ring and the outer ring are each provided with an arc-shaped groove on opposite sides, and the steel ball is inserted into the inside of the arc-shaped groove.

[0012] Preferably, the retaining assembly includes retainers symmetrically arranged at the top and bottom of the steel ball, and a rivet for fixing the position of the retainer is provided in the middle of the retainer.

[0013] Preferably, the inner ring has symmetrical mounting grooves at its top and bottom, and the sealing ring is inserted into the interior of the mounting groove.

[0014] Preferably, the limiting element includes a reinforcing plate that is interposed on the top of the sealing ring, the reinforcing plate being used to strengthen the sealing ring.

[0015] Preferably, the top of the reinforcing plate is provided with a guide groove, a guide plate is inserted and connected inside the guide groove, a limiting part is provided at the connection between the guide groove and the guide plate, a limiting groove is provided on the inner wall of one side of the mounting groove, and the guide plate is inserted and connected inside the limiting groove.

[0016] Preferably, the fastener includes a screw threadedly inserted into the top of the guide plate, the screw being threadedly inserted into the inner wall of the bottom end of the mounting groove.

[0017] Preferably, the limiting part includes limiting slide grooves symmetrically formed on the inner walls of the front and back sides of the guide groove, and limiting sliders are symmetrically fixedly connected to the front and back sides of the guide plate, with the limiting sliders inserted into the interior of the limiting slide grooves.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] This utility model, through the design of limiting and fixing components, first moves the sealing ring between the inner and outer rings during use, then restricts the position of the sealing ring by the limiting component, preventing it from moving, and finally fixes the position of the sealing ring by the fixing component. This avoids the situation where the sealing ring is difficult to install due to sliding during installation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram of section A.

[0022] Figure 3 This is a front cross-sectional view of the present invention.

[0023] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A.

[0024] In the diagram: 1. Inner ring; 2. Outer ring; 3. Steel ball; 4. Retaining assembly; 401. Cage; 402. Rivet; 5. Sealing assembly; 501. Sealing ring; 502. Reinforcing plate; 503. Guide groove; 504. Guide plate; 505. Screw; 506. Mounting groove; 507. Restricting groove; 6. Limiting part; 601. Limiting slider; 602. Limiting slide. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides, for example Figure 1-4 The illustrated automotive plunger pump bearing includes:

[0027] Inner circle 1;

[0028] Outer ring 2, which is fitted onto the outer wall of inner ring 1;

[0029] Steel ball 3 is located on the side opposite to the inner ring 1 and the outer ring 2.

[0030] Retaining component 4 is located on the side opposite to the inner ring 1 and the outer ring 2, and is used to restrict the position of the steel ball 3;

[0031] The sealing assembly 5 includes a sealing ring 501 disposed on the opposite side of the inner ring 1 and the outer ring 2. A limiting member is provided at the connection between the sealing ring 501 and the inner ring 1 to restrict the movement of the sealing assembly 5. A fixing member is provided on the top of the sealing ring 501 to fix the position of the sealing ring 501.

[0032] It should be noted that the steel ball 3, as a rolling element, rolls between the inner ring 1 and the two arc-shaped raceways of the outer ring, converting sliding friction into rolling friction, thereby reducing frictional resistance and improving transmission efficiency. The arc-shaped grooves on the inner ring 1 and the outer ring 2 are precision machined to ensure that they match the contact surface with the steel ball 3, so that the load is evenly distributed, stress concentration is reduced, and the steel ball 3 is guided to roll smoothly. The sealing ring 501 is made of rubber. During use, the sealing ring 501 is placed between the inner ring 1 and the outer ring 2 to seal the inner ring 1 and the outer ring 2.

[0033] Furthermore, during use, the sealing ring 501 is first moved between the inner ring 1 and the outer ring 2. Then, the position of the sealing ring 501 is restricted by the limiting component, preventing it from moving. Finally, the position of the sealing ring 501 is fixed by the fixing component. This avoids the situation where the sealing ring 501 is difficult to install due to slippage when directly installing it.

[0034] Specifically, an arc-shaped groove is provided on the opposite side of the inner ring 1 and the outer ring 2, and the steel ball 3 is inserted and connected inside the arc-shaped groove.

[0035] Specifically, the retaining assembly 4 includes retainers 401 symmetrically arranged at the top and bottom of the steel ball 3, and a rivet 402 for fixing the position of the retainer 401 is provided in the middle of the retainer 401.

[0036] It should be noted that the cage 401 is a key component inside the bearing, used to evenly separate and guide the steel balls 3, preventing them from colliding or rubbing against each other, and ensuring that the rolling elements move smoothly and orderly in the raceways of the inner and outer rings 2. There are two cages 401, which are respectively fitted on the top and bottom of the steel balls 3. The two cages 401 are fixed at the connection point by rivets 402 to prevent the cages 401 from moving randomly during use.

[0037] Specifically, the inner ring 1 has symmetrical mounting grooves 506 at the top and bottom, and the sealing ring 501 is inserted into the inside of the mounting groove 506.

[0038] It should be noted that the mounting groove 506 is adapted to the sealing ring 501. When the sealing ring 501 is inserted between the inner ring 1 and the outer ring 2, the sealing ring 501 is supported by the mounting groove 506.

[0039] Specifically, the limiting component includes a reinforcing plate 502 that is interposed on the top of the sealing ring 501, the reinforcing plate 502 being used to strengthen the sealing ring 501.

[0040] It should be noted that the reinforcing plate 502 is made of metal, and the strength of the sealing ring 501 is enhanced by the metal reinforcing plate 502.

[0041] Specifically, a guide groove 503 is provided on the top of the reinforcing plate 502, and a guide plate 504 is inserted and connected inside the guide groove 503. A limiting part 6 is provided at the connection between the guide groove 503 and the guide plate 504. A limiting groove 507 is provided on the inner wall of one side of the mounting groove 506. The guide plate 504 is inserted and connected inside the limiting groove 507. The fastener includes a screw 505 that is threaded and connected to the top of the guide plate 504. The screw 505 is threaded and connected to the inner wall at the bottom of the mounting groove 506.

[0042] It should be noted that the guide groove 503 is adapted to the guide plate 504, allowing the guide plate 504 to slide inside the guide groove 503. The limiting part 6 is located at the connection between the guide groove 503 and the guide plate 504. The limiting part 6 restricts the guide plate 504 from completely moving out of the guide groove 503. The limiting groove 507 is adapted to the guide plate 504, allowing the guide plate 504 to be inserted into the limiting groove 507. When it is necessary to restrict the position of the sealing ring 501, the sealing ring 501 is first inserted into the mounting groove 506, and then the guide plate 504 is inserted into the limiting groove 507. The sealing ring 501 is restricted between the inner ring 1 and the outer ring 2 by the mounting groove 506, the guide plate 504, and the limiting groove 507. Finally, the position of the sealing ring 501 is fixed by passing the screw 505 through the guide plate 504, the reinforcing plate 502, the sealing ring 501, and the inner wall of the bottom of the mounting groove 506 in sequence.

[0043] Specifically, the limiting part 6 includes limiting slide grooves 602 symmetrically opened on the inner walls of the front and back sides of the guide groove 503, and limiting sliders 601 are symmetrically fixedly connected to the front and back sides of the guide plate 504, with the limiting sliders 601 inserted into the interior of the limiting slide grooves 602.

[0044] It should be noted that the limiting groove 602 is adapted to the limiting slider 601, so that the limiting slider 601 can be inserted into the inside of the limiting groove 602. By limiting the inner walls of the top and bottom of the limiting groove 602, the limiting slider 601 cannot move vertically. The limiting slider 601 restricts the movement of the guide plate 504, thereby preventing the guide plate 504 from separating from the reinforcing plate 502.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A piston pump bearing for automobiles, characterized in that, include: Inner circle (1); Outer ring (2), which is fitted onto the outer wall of inner ring (1); Steel ball (3), the steel ball (3) is disposed on the side opposite to the inner ring (1) and the outer ring (2); A retaining component (4) is disposed on the side opposite to the inner ring (1) and the outer ring (2), and the retaining component (4) is used to restrict the position of the steel ball (3); The sealing assembly (5) includes a sealing ring (501) disposed on the opposite side of the inner ring (1) and the outer ring (2). A limiting member is provided at the connection between the sealing ring (501) and the inner ring (1) to restrict the movement of the sealing assembly (5). A fixing member is provided on the top of the sealing ring (501) to fix the position of the sealing ring (501).

2. The automotive plunger pump bearing according to claim 1, characterized in that, The inner ring (1) and the outer ring (2) are both provided with arc-shaped grooves on opposite sides, and the steel ball (3) is inserted into the inside of the arc-shaped groove.

3. The automotive plunger pump bearing according to claim 1, characterized in that, The retaining assembly (4) includes a retainer (401) symmetrically arranged at the top and bottom of the steel ball (3), and a rivet (402) for fixing the position of the retainer (401) is provided in the middle of the retainer (401).

4. The automotive plunger pump bearing according to claim 1, characterized in that, The inner ring (1) has symmetrically provided mounting grooves (506) at the top and bottom, and the sealing ring (501) is inserted into the interior of the mounting groove (506).

5. The automotive plunger pump bearing according to claim 4, characterized in that, The limiting element includes a reinforcing plate (502) that is inserted through the top of the sealing ring (501) to enhance the strength of the sealing ring (501).

6. The automotive plunger pump bearing according to claim 5, characterized in that, The top of the reinforcing plate (502) is provided with a guide groove (503), and a guide plate (504) is inserted and connected inside the guide groove (503). A limiting part (6) is provided at the connection between the guide groove (503) and the guide plate (504). A limiting groove (507) is provided on the inner wall of one side of the mounting groove (506), and the guide plate (504) is inserted and connected inside the limiting groove (507).

7. The automotive plunger pump bearing according to claim 6, characterized in that, The fastener includes a screw (505) threadedly connected to the top of the guide plate (504), and the screw (505) threadedly connected to the inner wall of the bottom end of the mounting groove (506).

8. The automotive plunger pump bearing according to claim 6, characterized in that, The limiting part (6) includes a limiting slide groove (602) symmetrically opened on the inner wall of the front and back sides of the guide groove (503). The front and back sides of the guide plate (504) are symmetrically fixedly connected to a limiting slider (601), and the limiting slider (601) is inserted into the inside of the limiting slide groove (602).

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