A high-precision ball hinge polishing processing equipment for a plunger pump

Abstract

The utility model discloses a high -precision ball hinge polishing processing equipment of plunger pump, wherein polishing machine tool and chuck body, chuck body top fixedly connected base, base top fixedly connected limiting component, limiting component contains inner cover and outer cover, the inner cover is circular ring cylinder, the conical cylinder penetrates the hole in the middle of inner cover, the recess three of inner cover top outside is seted up, recess one is seted up in the inner cover, the recess one in bottom even fixedly connected eight group spring no.

Description

Technical Field

[0001] This utility model belongs to the field of plunger pump technology, specifically relating to a high-precision ball joint grinding and processing equipment for plunger pumps. Background Technology

[0002] The high-precision ball joint of a plunger pump is one of the core components of a swashplate axial plunger pump. It is responsible for converting the rotational motion of the swashplate into the reciprocating motion of the plunger and accurately transmitting power. It forms a friction pair that can withstand high pressure and high speed by tightly fitting a high-precision machined ball head with the ball socket inside the plunger shoe. This precision ball joint not only requires extremely high geometric accuracy and surface finish to ensure oil film formation and reduce wear and leakage, but also must have excellent pressure resistance and fatigue strength, which directly determines the pump's volumetric efficiency, working pressure, life and reliability.

[0003] Ball joints come in various models. When using an external clamping device during laser polishing, uneven polishing or excessive clamping force may cause the ball joint to break. Therefore, an internal clamping device is more suitable. However, different internal diameters of ball joints require different internal clamping devices, which is quite cumbersome. This phenomenon has become a problem that urgently needs to be solved by those in the field. Utility Model Content

[0004] The purpose of this invention is to address the problems mentioned in the background art by providing an existing high-precision ball joint grinding and machining equipment for plunger pumps.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-precision ball joint grinding equipment for a plunger pump, including a grinding machine and a chuck body, with a base fixedly connected above the chuck body; A limiting component is fixedly connected above the base; The limiting component includes an inner cover and an outer cover; The inner cover is a circular cylindrical body, and the conical cylinder passes through the hole in the middle of the inner cover. A groove three is opened on the outer side of the upper part of the inner cover, and a groove one is opened inside the inner cover. Eight sets of spring two are evenly fixedly connected to the bottom of the groove one. The other end of the spring two is fixedly connected to the fixing ring two. The other side of the fixing ring two is fixedly connected to the circular locking block. The circular locking block is a circular cylindrical body with multiple sets of locking grooves on the outer side. The circular locking block is slidably connected to the groove one. Eight sets of locking blocks are fixedly connected to the circular locking block, and the locking blocks are evenly distributed.

[0006] This utility model further illustrates that the card block is fixedly connected to the coupling ring and the expansion sleeve; A groove four is provided on the lower inner side of the coupling ring, and the outer half of the card block is located in the groove four.

[0007] This utility model further illustrates that the expansion sleeve comprises eight sets of metal blocks and rubber strips, the metal blocks and rubber strips being spaced apart, and the expansion sleeve having a conical groove five inside, the upper diameter of the conical groove five being smaller than the lower diameter, the conical cylinder being located inside the conical groove five, the inner diameter of the coupling ring being larger than the outer diameter of the expansion sleeve, the expansion sleeve being located inside the coupling ring, the length of the rubber strip being shorter than the length of the metal block, forming eight grooves six, and the inner half of the locking block being located within the groove six.

[0008] The present invention further describes that the outer cover is provided with a second groove, the inside of the outer cover is closely attached to the outside of the inner cover, eight sets of springs are evenly arranged in the second groove, a fixing ring is fixedly connected to the spring, and a fastener is fixedly connected above the fixing ring.

[0009] The present invention further describes that the clamping component includes a claw and a transverse post. The connection between the claw and the transverse post is a bearing connection groove three. The claw is fixedly connected to the groove outside the circular clamping block. A square post is fixedly connected to the outside of the transverse post of the clamping component. A clamping ring is fixedly connected above the square post. The clamping ring is located in the groove two.

[0010] The present invention further describes that a conical cylinder is fixedly connected to the center of the base, a cylindrical hole is provided inside the conical cylinder, a threaded rod is threadedly connected to the cylindrical hole, a limiting plate is fixedly connected above the threaded rod, a gasket is fixedly connected below the limiting plate, and the gasket is annular, with the threaded rod passing through the circular hole in the center of the gasket.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are: by setting a limiting component, this utility model can adapt to more diameter ball joints within the compensation range of the expansion sleeve diameter, and it is also easy to disassemble when the expansion sleeve needs to be replaced. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a utility model Figure 1 Partial schematic diagram of area A in the middle; Figure 3 This is a utility model Figure 2 Exploded view; Figure 4 This is a utility model Figure 2 A sectional view; Figure 5 This is a utility model Figure 4 A magnified view of a portion of region B; Figure 6 This is a utility model Figure 3 A magnified view of a portion of region C; In the diagram: 1. Grinding machine tool; 2. Chuck body; 3. Base; 4. Limiting component; 5. Ball joint; 6. Limiting plate; 7. Washer; 8. Expansion sleeve; 9. Snap ring; 10. Square column; 11. Clip; 12. Fixed ring one; 13. Spring one; 14. Circular ring clip; 15. Coupling ring; 16. Clip; 17. Threaded rod; 18. Fixed ring two; 19. Spring two; 20. Conical cylinder; 21. Groove one; 22. Groove two; 23. Outer cover; 24. Inner cover; 25. Groove three; 26. Groove four. Detailed Implementation

[0013] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-6 The present invention provides a technical solution: a high-precision ball joint grinding equipment for a plunger pump, comprising a grinding machine tool 1 and a chuck body 2.

[0015] It should be added that the grinding machine tool 1 and the chuck body 2 are existing technologies and will not be explained in detail.

[0016] A base 3 is fixedly connected to the top of the chuck body 2. A conical cylinder 20 is fixedly connected to the center of the base 3. A cylindrical hole is provided inside the conical cylinder 20. A threaded rod 17 is threadedly connected to the cylindrical hole. A limiting plate 6 is fixedly connected above the threaded rod 17. A gasket 7 is fixedly connected below the limiting plate 6. The gasket 7 is annular. The threaded rod 17 passes through the circular hole in the middle of the gasket 7.

[0017] The limiting component 4 is fixedly connected above the base 3.

[0018] The limiting component 4 includes an inner cover 24 and an outer cover 23.

[0019] The inner cover 24 is a circular cylindrical body. The conical cylinder 20 passes through the hole in the middle of the inner cover 24. A groove 3 25 is opened on the outer side of the upper part of the inner cover 24. A groove 1 21 is opened inside the inner cover 24. Eight sets of springs 2 19 are evenly fixedly connected to the bottom of the groove 1 21. The other end of the springs 2 19 is fixedly connected to the fixing ring 2 18. The other side of the fixing ring 2 18 is fixedly connected to the circular ring block 14. The circular ring block 14 is a circular cylindrical body with multiple sets of slots on the outer side. The circular ring block 14 is slidably connected to the groove 1 21. Eight sets of blocks 16 are fixedly connected to the circular ring block 14. The blocks 16 are evenly distributed. The blocks 16 are fixedly connected to the coupling ring 15 and the expansion sleeve 8.

[0020] A groove 26 is provided on the lower inner side of the coupling ring 15, and half of the outer side of the locking block 16 is located in the groove 26.

[0021] The expansion sleeve 8 comprises eight sets of metal blocks and rubber strips, which are spaced apart. The expansion sleeve 8 has a conical groove 5 inside, with the upper diameter of the conical groove 5 being smaller than the lower diameter. The conical cylinder 20 is located inside the conical groove 5. The inner diameter of the coupling ring 15 is larger than the outer diameter of the expansion sleeve 8. The expansion sleeve 8 is located inside the coupling ring 15. The length of the rubber strip is shorter than the length of the metal block, forming eight grooves 6. Half of the inner side of the locking block 16 is located inside the groove 6.

[0022] The outer cover 23 is provided with a groove 22. The inside of the outer cover 23 is closely attached to the outside of the inner cover 24. Eight sets of springs 13 are evenly arranged in the groove 22. A fixing ring 12 is fixedly connected to the spring 13. A fastener 11 is fixedly connected above the fixing ring 12.

[0023] The clamp 11 includes a claw and a transverse post. The connection between the claw and the transverse post is connected to the bearing groove 25. The claw is fixedly connected to the groove outside the circular clamp block 14. The transverse post of the clamp 11 is fixedly connected to the outside of the square post 10. The square post 10 is fixedly connected to the top of the square post 10. The square post 9 is located in the groove 22.

[0024] Working principle: When machining the ball joint 5, first install the base 3 on the chuck body 2 of the grinding machine tool 1, slide the middle hole of the limiting component 4 down along the conical cylinder 20 and fix it on the top of the base 3, slide the limiting component 4 to the ring block 14, then lock the expansion sleeve 8 on the front end of the block 16 on the ring block 14, put on the coupling ring 15, put the ball joint 5 on the outside of the expansion sleeve 8, and then screw the threaded rod 17 into the inside of the conical cylinder 20. As the threaded rod 17 is screwed in, there is a downward pressure, which moves the expansion sleeve 8 down along the conical cylinder 20 and expands the expansion sleeve 8 until the expansion sleeve 8 and the ball joint 5 are completely and tightly fitted.

[0025] It should be added that the 8-piece set is an existing technology and has a certain diameter compensation.

[0026] As the expansion sleeve 8 moves downward, the circular locking block 14 moves downward as well. The circular locking block 14 drives the fixed ring 18 to move downward, and the fixed ring 18 drives the spring 19 to move downward. When the expansion sleeve 8 and the ball joint 5 are completely and tightly fitted, the claw of the locking piece 11 engages with the slot on the outside of the circular locking block 14, locking the circular locking block 14 to prevent slight shaking of the circular locking block 14 during the machining rotation process, thus maintaining the precision of the machining and grinding.

[0027] If a large-diameter ball joint 5 is encountered and the expansion sleeve 8 needs to be replaced, simply unscrew the threaded rod 17 and press down the retaining ring 9. The retaining ring 9 drives the square column 10 downward, which in turn exerts a downward force on the retaining member 11, as well as on the fixing ring 12 and the spring 13. Since the bearing at the junction of the retaining member 11's pawl and the transverse column is connected to the groove 25 on the inner cover 24, the pawl will unfold outward, releasing the circular retaining block 14. The circular retaining block 14 is then subjected to an upward force from the spring 19, pushing the expansion sleeve 8 upward, allowing the operator to easily remove the expansion sleeve 8.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-precision ball hinge polishing processing equipment for plunger pump, comprising a polishing machine tool (1) and a chuck body (2), characterized in that: The base (3) is fixedly connected above the chuck body (2); A conical cylinder (20) is fixedly connected in the middle of the base (3), and a limiting component (4) is fixedly connected above the base (3). The limiting component (4) includes an inner cover (24) and an outer cover (23); The inner cover (24) is a circular cylindrical body. The conical cylinder (20) passes through the hole in the middle of the inner cover (24). A groove three (25) is opened on the outer side of the upper part of the inner cover (24). A groove one (21) is opened inside the inner cover (24). Eight sets of spring two (19) are evenly fixedly connected to the bottom of the groove one (21). The other end of the spring two (19) is fixedly connected to the fixing ring two (18). The other side of the fixing ring two (18) is fixedly connected to the circular ring block (14). The circular ring block (14) is a circular cylindrical body and has multiple sets of slots on the outer side. The circular ring block (14) is slidably connected to the groove one (21). Eight sets of blocks (16) are fixedly connected to the circular ring block (14). The blocks (16) are evenly distributed.

2. The high-precision ball hinge polishing device for a plunger pump according to claim 1, characterized in that: The card block (16) is fixedly connected to the coupling ring (15) and the expansion sleeve (8); The coupling ring (15) has a groove four (26) below its inner side, and the outer half of the card block (16) is located in the groove four (26).

3. The high-precision ball hinge polishing device for a plunger pump according to claim 2, characterized in that: The expansion sleeve (8) comprises eight sets of metal blocks and rubber strips, which are spaced apart. The expansion sleeve (8) has a conical groove five inside, the upper diameter of which is smaller than the lower diameter. The conical cylinder (20) is located inside the conical groove five. The inner diameter of the coupling ring (15) is larger than the outer diameter of the expansion sleeve (8). The expansion sleeve (8) is located inside the coupling ring (15). The length of the rubber strip is shorter than the length of the metal block, forming eight grooves six. Half of the inner side of the locking block (16) is located inside the groove six.

4. The high-precision ball hinge polishing device for a plunger pump according to claim 3, characterized in that: The outer cover (23) is provided with a second groove (22), the inside of the outer cover (23) is closely attached to the outside of the inner cover (24), eight sets of springs (13) are evenly arranged in the second groove (22), a fixing ring (12) is fixedly connected to the spring (13), and a fastener (11) is fixedly connected above the fixing ring (12).

5. The high-precision ball hinge polishing device for a plunger pump according to claim 4, characterized in that: The clamp (11) includes a claw and a transverse post. The connection between the claw and the transverse post is connected to the bearing groove three (25). The claw is fixedly connected to the groove outside the circular clamp block (14). A square post (10) is fixedly connected to the outside of the transverse post of the clamp (11). A retaining ring (9) is fixedly connected above the square post (10). The retaining ring (9) is located in the groove two (22).

6. The high-precision ball joint grinding equipment for a plunger pump according to claim 5, characterized in that: The conical cylinder (20) has a cylindrical hole inside, and a threaded rod (17) is threadedly connected to the cylindrical hole. A limiting plate (6) is fixedly connected above the threaded rod (17), and a gasket (7) is fixedly connected below the limiting plate (6). The gasket (7) is annular, and the threaded rod (17) passes through the circular hole in the middle of the gasket (7).

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