Hydraulic pump piston assembling mechanism

Abstract

The utility model discloses a hydraulic pump piston assembling mechanism which comprises a base, side plates are fixedly connected to the two sides of the top of the base, a movable plate is connected between the two side plates in a sliding mode, a first fixing base is fixedly installed in the center of the bottom of the movable plate, and a second fixing base is fixedly installed in the center of the bottom of the first fixing base. And first moving grooves are formed in the positions, close to the two sides, of the bottom of the first fixing base correspondingly, moving blocks are slidably connected into the first moving grooves, piston outer clamping plates are fixedly connected to the bottoms of the moving blocks, and the bottoms of the piston outer clamping plates penetrate to the exterior of the first fixing base. According to the hydraulic pump piston assembling mechanism, through cooperation of the first two-way threaded rod and the first threaded sleeve plate and accurate control of the variable frequency motor, accurate alignment and adjustment of the piston outer clamping plate are achieved, the alignment problem caused by the shape and size difference of pistons is effectively solved through the design, and the assembling success rate and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of piston assembly, in particular to a hydraulic pump piston assembly mechanism. Background Art

[0002] In the production and maintenance process of hydraulic pumps, the assembly of the piston is a crucial link.

[0003] The structure of the hydraulic pump piston is complex, and its outer surface and internal channels need to be precisely aligned with the pump body to ensure sealing and working efficiency. However, due to differences in the shape and size of the piston, as well as errors in manual operation, it is difficult to achieve precise alignment, which not only affects the success rate of assembly, but may also cause equipment damage. At the same time, traditional clamping methods often cannot provide sufficient stability, especially when adjusting the piston, which can easily cause the piston to fall off or be damaged. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic pump piston assembly mechanism to solve the problem mentioned in the above background technology that it is difficult to achieve precise alignment due to differences in the shape and size of the piston and errors in manual operation, which not only affects the success rate of assembly but may also cause damage to the equipment. At the same time, traditional clamping methods often cannot provide sufficient stability, especially when adjusting the piston, which can easily cause the piston to fall off or be damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic pump piston assembly mechanism, comprising a base, both sides of the top of the base are fixedly connected with side plates, a movable plate is slidably connected between the two side plates, a fixed seat 1 is fixedly installed at the center of the bottom of the movable plate, a fixed seat 2 is fixedly installed at the center of the bottom of the fixed seat 1, a movable groove 1 is opened at the bottom of the fixed seat 1 near the two sides, a movable block is slidably connected inside the movable groove 1, a piston outer clamping plate is fixedly connected at the bottom of the movable block, the bottom of the piston outer clamping plate penetrates to the outside of the fixed seat 1, a movable groove 2 is opened at the bottom of the fixed seat 2 near the two sides, two piston inner hole clamping plates are arranged below the two movable grooves 2 at the center position of the bottom of the fixed seat 2 corresponding to the two movable grooves 2, a two-way threaded rod 2 is rotatably connected at the bottom position of the fixed seat 2, a threaded sleeve plate 2 is threadedly connected at the two sides of the surface of the two-way threaded rod 2, the bottom of the threaded sleeve plate 2 penetrates to the outside of the movable groove 2 and is fixedly connected to the top of the piston inner hole clamping plate, and a pump body placement plate is fixedly installed at the center of the top of the base.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] The hydraulic pump piston assembly mechanism adopts the cooperation of a bidirectional threaded rod and a threaded sleeve plate, as well as the precise control of a variable frequency motor, so that the device realizes the precise alignment and adjustment of the piston outer clamping plate. This design effectively solves the alignment problem caused by differences in piston shapes and sizes, and improves the success rate and efficiency of assembly. The anti-skid pads 1 and 2 respectively arranged on the piston outer clamping plate and the piston inner hole clamping plate effectively increase the friction between the piston and prevent the piston from sliding or deflecting during the assembly process. This design not only improves the stability of the assembly, but also reduces the risk of equipment damage caused by the piston falling off or being damaged, and ensures the safety and reliability of the assembly process. The use of a micro motor in conjunction with a one-way gear rotating rod and a sub-gear realizes the automatic adjustment and control of the piston inner hole clamping plate, simplifies the operation process, and reduces the difficulty and labor intensity of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0010] Figure 3 For this utility model Figure 2 A is a partial enlarged schematic diagram;

[0011] Figure 4 For this utility model Figure 2 A partial enlarged schematic diagram of B in the middle;

[0012] Figure 5 This is a structural stereogram of the inner hole clamp of the piston of the utility model;

[0013] Figure 6 It is a structural stereogram of the outer clamping plate of the piston of the utility model.

[0014] In the figure: 1. base; 2. side plate; 3. top plate; 4. cylinder; 5. push rod; 6. moving plate; 7. fixed seat 1; 8. pump body placement plate; 9. two-way threaded rod 1; 10. moving groove 1; 11. threaded sleeve 1; 12. moving block; 13. piston outer clamping plate; 14. anti-skid pad 1; 15. fixed seat 2; 16. support rod; 17. two-way threaded rod 2; 18. moving groove 2; 19. micro motor; 20. one-way gear rotating rod; 21. auxiliary gear; 22. threaded sleeve 2; 23. piston inner hole clamping plate; 24. anti-skid pad 2. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-6 The utility model provides a technical solution: a hydraulic pump piston assembly mechanism, including a base 1, both sides of the top of the base 1 are fixedly connected with side plates 2, a moving plate 6 is slidably connected between the two side plates 2, a fixed seat 1 7 is fixedly installed at the center of the bottom of the moving plate 6, a fixed seat 2 15 is fixedly installed at the center of the bottom of the fixed seat 7, a moving groove 10 is opened at the two sides of the bottom of the fixed seat 7, a moving block 12 is slidably connected inside the moving groove 10, a piston outer clamping plate 13 is fixedly connected to the bottom of the moving block 12, and the bottom of the piston outer clamping plate 13 penetrates to the fixed On the outside of the seat 1 7, movable grooves 2 18 are provided on both sides of the bottom of the fixed seat 2 15, and two piston inner hole clamps 23 are provided below the two movable grooves 28 at the center position of the bottom of the fixed seat 2 15 corresponding to the two movable grooves 2. A two-way threaded rod 2 17 is rotatably connected to the bottom position of the fixed seat 2 15, and threaded sleeves 22 are threadedly connected to both sides of the surface of the two-way threaded rod 2 17. The bottom of the threaded sleeves 22 penetrates to the outside of the movable grooves 2 18 and is fixedly connected to the top of the piston inner hole clamps 23. A pump body placement plate 8 is fixedly installed at the center of the top of the base 1.

[0017] The tops of the two side plates 2 are fixedly connected to a top plate 3, the center of the top of the top plate 3 is fixedly installed with a cylinder 4, the cylinder 4 is fixedly connected to a push rod 5 through the output end at the bottom thereof, the bottom of the push rod 5 passes through the outside of the top plate 3 and is fixedly connected to the top of the moving plate 6.

[0018] A bidirectional threaded rod 9 is rotatably connected to the center position of the fixed seat 7, and threaded sleeves 11 are threadedly connected to the two side positions of the surface of the bidirectional threaded rod 9. The bottom of the threaded sleeve 11 is fixedly connected to the top of the moving block 12. A frequency conversion motor is fixedly installed on one side of the fixed seat 7, and the output end of one side of the frequency conversion motor passes through the interior of the fixed seat 7 and is fixedly connected to the bidirectional threaded rod 9, which improves the flexibility and accuracy of assembly and makes the assembly process of the hydraulic pump piston more efficient and reliable.

[0019] The inner walls of the two piston outer clamps 13 on the left and right sides are fixedly connected with anti-skid pads 14 on the opposite sides, and the surfaces of the two piston inner hole clamps 23 on the opposite sides are fixedly connected with anti-skid pads 24, which increases the friction between the piston outer clamps 13 and the piston inner hole clamps 23 and the piston, effectively preventing the piston from sliding or deflecting during the assembly process, and improving the stability and success rate of the assembly.

[0020] A micro motor 19 is fixedly installed on one side of the fixing seat 15, and a one-way gear rotating rod 20 is fixedly connected to the output end at the bottom of the micro motor 19. A sub gear 21 is fixedly connected to one side of the surface of the two-way threaded rod 17. One side of the bottom of the one-way gear rotating rod 20 is meshed with the sub gear 21, which simplifies the operation process, improves the degree of automation of assembly, and reduces the difficulty and labor intensity of manual operation.

[0021] Support rods 16 are fixedly connected to both sides of the bottom of the fixed seat 1 7. The opposite sides of the two support rods 16 respectively penetrate the outside of the two piston outer clamps 13 and are fixedly connected to the two sides of the fixed seat 2 15. The support rods 16 are sleeved and slidably connected to the piston outer clamps 13, ensuring the stability and linearity of the piston outer clamps 13 during movement.

[0022] Working principle: The frequency conversion motor starts, driving the bidirectional threaded rod 9 to rotate. Due to the rotation of the bidirectional threaded rod 9, the threaded sleeves 11 on both sides will move toward the center or open outward at the same time. The movement of the threaded sleeve 11 drives the piston outer clamping plate 13 to move synchronously through the moving block 12 to achieve external clamping of the piston. The anti-slip pad 14 increases the friction between the piston and ensures stable clamping. The micro motor 19 starts and drives the sub-gear 21 to rotate through the one-way gear rotating rod 20. The rotation of the sub-gear 21 drives the bidirectional threaded rod 17 to rotate. The rotation of the bidirectional threaded rod 17 causes the threaded sleeves 22 on both sides to move inward or outward at the same time. The movement of the second 22 drives the piston inner hole clamping plate 23 to move synchronously, so as to clamp the internal hole of the piston. The anti-skid pad 24 enhances the stability of the clamping. The cylinder 4 drives the movable plate 6 to slide downward between the side plates 2 through the push rod 5. The movable plate 6 moves downward to drive the fixed seat 1 7 and the fixed seat 2 15 (and the clamped piston) to rise and fall synchronously. During the lifting process, the support rod 16 ensures the stability and linearity of the piston outer clamping plate 13. By accurately controlling the expansion and contraction amount of the cylinder 4, the piston can be accurately positioned in the pump body. After the piston is accurately clamped and positioned in the pump body, the final assembly step can be completed through other auxiliary tools (such as bolts, seals, etc.).

[0023] To sum up: the hydraulic pump piston assembly mechanism, by adopting the cooperation of the bidirectional threaded rod 9 and the threaded sleeve plate 11, and the precise control of the frequency conversion motor, the device realizes the precise alignment and adjustment of the piston outer clamping plate 13. This design effectively solves the alignment problem caused by the difference in piston shape and size, and improves the success rate and efficiency of assembly. The anti-skid pad 14 and the anti-skid pad 24 are respectively arranged on the piston outer clamping plate 13 and the piston inner hole clamping plate 23, which effectively increase the friction between the piston and prevent the piston from sliding or deflecting during the assembly process. This design not only improves the stability of the assembly, but also reduces the risk of equipment damage caused by the piston falling off or damaging, and ensures the safety and reliability of the assembly process. The use of the micro motor 19 in conjunction with the one-way gear rotating rod 20 and the sub-gear 21 realizes the automatic adjustment and control of the piston inner hole clamping plate 23, simplifies the operation process, and reduces the difficulty and labor intensity of manual operation.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pump piston assembly mechanism, comprising a base (1), characterized in that: Both sides of the top of the base (1) are fixedly connected to side plates (2), a movable plate (6) is slidably connected between the two side plates (2), a fixed seat 1 (7) is fixedly installed at the center of the bottom of the movable plate (6), a fixed seat 2 (15) is fixedly installed at the center of the bottom of the fixed seat 1 (7), a movable groove 1 (10) is opened at the two sides of the bottom of the fixed seat 1 (7), a movable block (12) is slidably connected inside the movable groove 1 (10), a piston outer clamping plate (13) is fixedly connected to the bottom of the movable block (12), the bottom of the piston outer clamping plate (13) passes through the outside of the fixed seat 1 (7), and the fixed seat 2 (15) is fixedly installed at the center of the bottom of the fixed seat 1 (7). Two movable grooves (18) are provided at both sides of the bottom of the second fixed seat (15); two piston inner hole clamps (23) are provided at the center of the bottom of the second fixed seat (15) corresponding to the two movable grooves (18); a two-way threaded rod (17) is rotatably connected to the bottom of the second fixed seat (15); two threaded sleeves (22) are threadedly connected to the two sides of the surface of the two-way threaded rod (17); the bottom of the threaded sleeves (22) penetrates to the outside of the second movable groove (18) and is fixedly connected to the top of the piston inner hole clamp (23); a pump body placement plate (8) is fixedly installed at the center of the top of the base (1).

2. A hydraulic pump piston assembly mechanism according to claim 1, characterized in that: The tops of the two side plates (2) are fixedly connected to a top plate (3), a cylinder (4) is fixedly mounted at the center of the top of the top plate (3), the cylinder (4) is fixedly connected to a push rod (5) via an output end at the bottom thereof, the bottom of the push rod (5) passes through the outside of the top plate (3) and is fixedly connected to the top of the moving plate (6).

3. The hydraulic pump piston assembly mechanism according to claim 1, characterized in that: A bidirectional threaded rod (9) is rotatably connected to the center of the fixed seat (7), and a threaded sleeve (11) is threadedly connected to both sides of the surface of the bidirectional threaded rod (9), and the bottom of the threaded sleeve (11) is fixedly connected to the top of the moving block (12).

4. The hydraulic pump piston assembly mechanism according to claim 1, characterized in that: A variable frequency motor is fixedly mounted on one side of the fixing seat 1 (7), and an output end of one side of the variable frequency motor passes through the interior of the fixing seat 1 (7) and is fixedly connected to the bidirectional threaded rod 1 (9).

5. The hydraulic pump piston assembly mechanism according to claim 1, characterized in that: The inner walls of the two piston outer clamping plates (13) arranged on the left and right sides on the opposite sides are both fixedly connected with anti-slip pads 1 (14).

6. The hydraulic pump piston assembly mechanism according to claim 1, characterized in that: The surfaces of the two piston inner hole clamping plates (23) on the opposite sides are both fixedly connected with anti-skid pads 2 (24).

7. The hydraulic pump piston assembly mechanism according to claim 1, characterized in that: A micro motor (19) is fixedly mounted on one side of the second fixing seat (15); a one-way gear rotating rod (20) is fixedly connected to the output end at the bottom of the micro motor (19); a sub gear (21) is fixedly connected to one side of the surface of the second bidirectional threaded rod (17); and one side of the bottom of the one-way gear rotating rod (20) is meshed with the sub gear (21).

8. The hydraulic pump piston assembly mechanism according to claim 1, characterized in that: Support rods (16) are fixedly connected to both sides of the bottom of the fixing seat 1 (7), and opposite sides of the two support rods (16) respectively penetrate the outside of the two piston outer clamping plates (13) and are fixedly connected to both sides of the fixing seat 2 (15), and the support rods (16) are sleeved and slidably connected to the piston outer clamping plates (13).

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