A detachable hydraulic pump swing assembly

Abstract

The utility model discloses a detachable hydraulic pump swing assembly belongs to hydraulic pump production technical field, including the clamping seat, the swing disc is rotationally arranged on the clamping seat, the side of swing disc back to the clamping seat is equipped with a plurality of first installation hole, two fixed blocks are detachably fixedly connected through the connecting assembly in the first installation hole, and the face of two fixed blocks is equipped with the movable groove of hemispherical shape. This detachable hydraulic pump swing assembly, through two fixed blocks, restricts the spherical joint in the movable groove, and cooperates the connecting assembly to realize the fixation of fixed block in the first installation hole, that is, the installation of one end of the spherical joint can be realized, the connecting rod is inserted into the second installation hole, and cooperates the fixed component, that is, the installation of the other end of the spherical joint can be realized, and the dismounting and installation are more convenient. Compared with the prior art, the problem that the spherical joint is difficult to replace is avoided, and the use cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic pump manufacturing technology, and in particular relates to a detachable hydraulic pump swing assembly. Background Technology

[0002] The swashplate assembly is an important component of a hydraulic pump system. The hydraulic pump relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working cavity, thereby achieving oil suction and pressure. The swashplate assembly can adjust the angle of the swashplate, thereby changing the change value of the sealed working cavity volume and thus achieving hydraulic pump speed regulation.

[0003] In hydraulic pumps, the connection between the oscillator and control piston is typically achieved through a ball joint. This allows the oscillator to move more smoothly and efficiently, driving the control piston along with the oscillator. However, most current oscillator and control piston connections are integrally molded and connected via a ball joint. Over prolonged use, this ball joint is prone to significant wear, leading to instability and reduced control force of the oscillator on the control piston. This, in turn, decreases the accuracy of the piston pump's flow regulation. Since most existing hydraulic pump oscillator assemblies are integrally molded, wear of the ball joint necessitates replacing the entire oscillator assembly, resulting in high costs.

[0004] To address these issues, we propose a detachable hydraulic pump swing assembly. Utility Model Content

[0005] The purpose of this invention is to solve the problem of easy wear and difficulty in replacement of ball joints in the prior art, and to propose a detachable hydraulic pump swing assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A detachable hydraulic pump oscillating assembly includes a mounting base with a rotatable oscillating disk rotatably mounted on it. The oscillating disk has multiple first mounting holes on its side facing away from the mounting base. Two fixing blocks are detachably and fixedly connected to each first mounting hole via a connecting assembly. Hemispherical movable grooves are formed on the facing surfaces of the two fixing blocks. Ball joints are movably mounted within the two movable grooves, with one end of each ball joint extending outside the movable groove and fixedly connected to a connecting rod. The assembly also includes a piston cylinder with a second mounting hole at one end. The connecting rod is inserted into the second mounting hole and detachably and fixedly connected by a fixing assembly.

[0008] Preferably, the sway disk has a radial first threaded hole on its side, and the first threaded hole passes through the first mounting hole. The fixing block has a second threaded hole. The connecting assembly includes a first bolt threaded in the first threaded hole, and the first bolt threaded through the second threaded holes of the two fixing blocks.

[0009] Preferably, the fixing component includes a second bolt that penetrates the piston cylinder, one end of the connecting rod that is inserted into the second mounting hole has a connecting hole, the second bolt penetrates the connecting hole, and one end of the second bolt extends to the outside of the piston cylinder and is detachably threaded with a nut.

[0010] Preferably, a shock-absorbing pad is fixed between the middle of the second bolt and the connecting hole.

[0011] Preferably, a connecting block is fixedly connected to the side of the card holder facing away from the swing plate, and a movable block is provided on one side of the card holder that moves up and down. A placement groove for the connecting block is opened on one side of the movable block. A movable plate is provided at the lower part of the placement groove that moves up and down, and a compression spring is fixedly connected between the bottom surface of the movable plate and the bottom wall of the placement groove.

[0012] Preferably, sliding grooves are fixedly provided on both sides of the placement groove, and the two ends of the movable plate extend into the sliding grooves.

[0013] Preferably, a fixing column is fixedly connected to the top surface of the movable plate, and the arc-shaped side of the fixing column is in contact with the bottom surface of the connecting block.

[0014] In summary, the technical effects and advantages of this utility model are as follows: This detachable hydraulic pump swing assembly restricts the ball joint within the movable groove by two fixing blocks. With the help of the connecting component, the fixing blocks are fixed in the first mounting hole, thus enabling the installation of one end of the ball joint. By inserting the connecting rod into the second mounting hole and with the help of the fixing component, the other end of the ball joint can be installed. Disassembly and installation are relatively convenient. Compared with existing devices, it avoids the problem of difficulty in replacing the ball joint and reduces the cost of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure at the ball joint in this utility model;

[0017] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Card holder; 2. Swing plate; 3. First mounting hole; 4. Fixing block; 5. Movable groove; 6. Ball joint; 7. Connecting rod; 8. Piston cylinder; 9. Second mounting hole; 10. First threaded hole; 11. Second threaded hole; 12. First bolt; 13. Second bolt; 14. Connecting hole; 15. Nut; 16. Shock-absorbing pad; 17. Connecting block; 18. Moving block; 19. Placement groove; 20. Moving plate; 21. Compression spring; 22. Sliding groove; 23. Fixing column. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-2 A detachable hydraulic pump swing assembly includes a mounting base 1, on which a swing disk 2 is rotatably mounted. Multiple first mounting holes 3 are formed on the side of the swing disk 2 facing away from the mounting base 1. Two fixing blocks 4 are detachably and fixedly connected to the first mounting holes 3 via connecting components. Hemispherical movable grooves 5 are formed on the facing surfaces of the two fixing blocks 4. Ball joints 6 are movably mounted within the two movable grooves 5, with one end of the ball joint 6 extending outside the movable groove 5 and fixedly connected to a connecting rod 7. The assembly also includes a piston cylinder 8, with a second mounting hole 9 at one end. The connecting rod 7 is inserted into the second mounting hole 9 and detachably and fixedly connected by a fixing component.

[0021] Reference Figure 1-2 This detachable hydraulic pump swing assembly is easy to assemble. Simply align the movable slots 5 on the two fixing blocks 4 with the ball joints 6, then attach the two fixing blocks 4 together and insert them into the first mounting hole 3. The connecting assembly then secures the two fixing blocks 4 within the first mounting hole 3. Next, insert the connecting rod 7 at one end of the ball joint 6 into the second mounting hole 9 of the piston cylinder 8, and then use the fixing assembly to secure the ball joint 6. Disassembly is straightforward; simply reverse the assembly steps.

[0022] Reference Figure 1-2 The oscillating disk 2 has a radial first threaded hole 10 on its side, which penetrates the first mounting hole 3. The fixing block 4 has a second threaded hole 11. The connecting assembly includes a first bolt 12 threaded into the first threaded hole 10, which also threaded through the second threaded holes 11 of both fixing blocks 4. This connecting assembly, through the first bolt 12 threaded through the first threaded hole 10 and the two second threaded holes 11, secures the two fixing blocks 4 within the first mounting hole 3. Disassembly is convenient; simply unscrew the first bolt 12 to separate the two fixing blocks 4 and the ball joint 6.

[0023] The fixing assembly includes a second bolt 13 that penetrates the piston cylinder 8. One end of the connecting rod 7, inserted into the second mounting hole 9, has a connecting hole 14. The second bolt 13 passes through the connecting hole 14, and one end of the second bolt 13 extends to the outside of the piston cylinder 8 and is detachably threaded with a nut 15. This fixing assembly secures the second bolt 13 via the nut 15, thereby securing the connecting rod 7. During disassembly, simply unscrewing the nut 15 allows the second bolt 13 to be removed, thus separating the connecting rod 7 from the piston cylinder 8, which is quite convenient.

[0024] A shock-absorbing pad 16 is fixedly installed between the middle of the second bolt 13 and the connecting hole 14. The shock-absorbing pad 16 fills the play between the second bolt 13 and the connecting hole 14, improving stability. Before installation, the second bolt 13 can be frozen for a period of time to facilitate installation and allow it to expand after installation, pressing the shock-absorbing pad 16 into the connecting hole 14, thereby improving the shock absorption effect of the shock-absorbing pad 16.

[0025] Reference Figure 1 , Figure 3 A connecting block 17 is fixedly connected to the side of the card holder 1 facing away from the swing plate 2. A movable block 18 is provided on one side of the card holder 1, moving up and down. A placement groove 19 is provided on one side of the movable block 18 for the connecting block 17 to be placed. A movable plate 20 is provided at the lower part of the placement groove 19, moving up and down, and a compression spring 21 is fixedly connected between the bottom surface of the movable plate 20 and the bottom wall of the placement groove 19. A drive assembly for driving the movable block 18 to move up and down should be provided on one side of the pump body. The drive assembly is existing technology and may include a hydraulic cylinder or an electric actuator, which are quite common and will not be described in detail here. It should be noted that the card holder 1 should be rotatably connected inside the pump body. The specific connection method and the change of hydraulic pump speed are existing technologies and will not be described in detail here. The movable block 18 drives the connecting block 17 to move up and down, thereby realizing the rotation of the card holder 1 and thus realizing the change of hydraulic pump speed. The movable plate 20, in conjunction with the compression spring 21, presses the connecting block 17 tightly against the upper part of the placement groove 19, thereby accommodating the angle change of the connecting block 17 as it rotates with the card holder 1.

[0026] Sliding grooves 22 are fixedly provided on both sides of the placement groove 19. The two ends of the moving plate 20 extend into the sliding grooves 22. The sliding grooves 22 limit the movement of the moving plate 20 and improve the stability of the movement of the moving plate 20.

[0027] A fixed post 23 is fixedly connected to the top surface of the movable plate 20, and the arc-shaped side of the fixed post 23 is in contact with the bottom surface of the connecting block 17. The arc-shaped side of the fixed post 23 can avoid instability caused by the edge of the movable plate 20 being subjected to force, thus improving the stability of use.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A detachable hydraulic pump swing assembly, comprising a mounting base (1), characterized in that, The card holder (1) is rotatably provided with a rocking disk (2). The rocking disk (2) is provided with a plurality of first mounting holes (3) on the side facing away from the card holder (1). Two fixing blocks (4) are detachably and fixedly connected in the first mounting holes (3) by a connecting component. The two fixing blocks (4) are provided with hemispherical movable grooves (5) on their facing surfaces. Ball joints (6) are movably provided in the two movable grooves (5). One end of the ball joint (6) extends out of the movable groove (5) and is fixedly connected with a connecting rod (7). The card holder (8) is also provided with a piston cylinder (8). One end of the piston cylinder (8) is provided with a second mounting hole (9). The connecting rod (7) is inserted into the second mounting hole (9) and is detachably and fixedly connected by a fixing component.

2. The detachable hydraulic pump swing assembly according to claim 1, characterized in that, The sway plate (2) has a radial first threaded hole (10) on its side, and the first threaded hole (10) passes through the first mounting hole (3). The fixing block (4) has a second threaded hole (11). The connecting assembly includes a first bolt (12) threaded in the first threaded hole (10), and the first bolt (12) threaded through the second threaded holes (11) of the two fixing blocks (4).

3. The detachable hydraulic pump swing assembly according to claim 2, characterized in that, The fixing assembly includes a second bolt (13) that penetrates the piston cylinder (8), and one end of the connecting rod (7) that is inserted into the second mounting hole (9) has a connecting hole (14) through which it is opened. The second bolt (13) penetrates the connecting hole (14), and one end of the second bolt (13) extends to the outside of the piston cylinder (8) and is detachably threaded with a nut (15).

4. The detachable hydraulic pump swing assembly according to claim 3, characterized in that, A shock-absorbing pad (16) is fixed between the middle of the second bolt (13) and the connecting hole (14).

5. The detachable hydraulic pump swing assembly according to claim 1, characterized in that, A connecting block (17) is fixedly connected to the side of the card holder (1) facing away from the rocker plate (2). A moving block (18) is provided on one side of the card holder (1) and moves up and down. A placement slot (19) for the connecting block (17) is provided on one side of the moving block (18). A moving plate (20) is provided at the bottom of the placement slot (19) and moves up and down. A compression spring (21) is fixedly connected between the bottom surface of the moving plate (20) and the bottom wall of the placement slot (19).

6. The detachable hydraulic pump swing assembly according to claim 5, characterized in that, The placement groove (19) has sliding grooves (22) fixedly opened on both sides, and the two ends of the moving plate (20) extend into the sliding grooves (22).

7. A detachable hydraulic pump swing assembly according to claim 6, characterized in that, The top surface of the movable plate (20) is fixedly connected to a fixed column (23), and the arc-shaped side surface of the fixed column (23) is attached to the bottom surface of the connecting block (17).

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