Novel plunger piston shoe assembly

Abstract

The utility model relates to a novel plunger piston shoe assembly, which belongs to the technical field of plunger piston shoes and comprises a plunger rod, a plunger ball head is fixed on the left side of the plunger rod, a connecting block is sleeved on the outer side of the plunger ball head, a first piston shoe block positioned on the left side of the connecting block is sleeved on the outer side of the plunger ball head, and a second piston shoe block positioned on the right side of the connecting block is sleeved on the outer side of the first piston shoe block. The side, away from the connecting block, of the first sliding shoe block abuts against a second sliding shoe block, and a connecting assembly used for connecting the first sliding shoe block, the connecting block and the second sliding shoe block is installed on the outer side of the first sliding shoe block. The connecting assembly comprises two positioning blocks fixed to the right side of the second sliding shoe block, two positioning grooves formed in the left side of the first sliding shoe block and two connecting grooves formed in the outer side of the first sliding shoe block, and the left side and the right side of each connecting groove are open. According to the novel plunger piston shoe assembly, the plunger piston shoe assembly can be detached and replaced more conveniently, the high-performance working state can be kept, and operation is quite convenient.

Description

Technical Field

[0001] The present application relates to the technical field of plunger slide shoes, and in particular to a novel plunger slide shoe assembly. Background Art

[0002] The performance of the plunger shoe assembly, a key component for the normal operation of the plunger pump of oil drilling equipment, directly affects the drilling efficiency, the working performance and the service life of the plunger pump. During the actual use of the plunger shoe, the contact surface between the plunger and the shoe is easily damaged after a long period of friction, and the injection shoe assembly needs to be replaced.

[0003] According to a plunger shoe assembly disclosed in Chinese patent publication No. CN211059002U, the patent divides the plunger shoe assembly into three parts by arranging a shoe plate, a clamping fixing block and a shoe block, and plays a clamping and positioning role through the cooperation between the locking bolt and the locking nut, so that it is easy to disassemble and is very practical. However, there is still room for improvement in the actual application of the patent. Due to the small overall volume of the plunger shoe assembly, it is very inconvenient to connect the conventional locking bolt and the locking nut in the fixed channel on the surface of the shoe block, and the locking tool is not convenient to extend into the fixed channel for operation, which affects the efficiency and convenience of disassembly and assembly. In this regard, the present application provides a new plunger shoe assembly to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a new plunger slipper assembly, which has the advantages of being able to more conveniently disassemble and replace the plunger slipper assembly, thereby solving the shortcomings of the existing plunger slipper assembly, such as poor convenience in actual operation and inconvenience in tightening the locking nut.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a novel plunger sliding shoe assembly, comprising a plunger rod, a plunger ball head is fixed on the left side of the plunger rod, a connecting block is sleeved on the outer side of the plunger ball head, a first sliding shoe block located on the left side of the connecting block is sleeved on the outer side of the plunger ball head, a second sliding shoe block is abutted on a side of the first sliding shoe block away from the connecting block, and a connecting assembly for connecting the first sliding shoe block, the connecting block and the second sliding shoe block is installed on the outer side of the first sliding shoe block;

[0006] The connecting assembly includes two positioning blocks fixed to the right side of the second sliding shoe block, two positioning grooves opened on the left side of the first sliding shoe block, two connecting grooves opened on the outside of the first sliding shoe block and opened on both sides, four connecting rods respectively fixed to the second sliding shoe block and the opposite side of the connecting block, a clamping block fixed to the other end of the connecting rod, a corner block fixed to the side of the connecting rod away from the plunger ball head, a screw rod passing between the left sides of the two corresponding clamping blocks, an internally threaded sleeve threadedly connected to the outside of the screw rod, a gasket sleeved on the outside of the screw rod, an internal hexagonal groove opened on the outside of the internally threaded sleeve and evenly distributed, and a plurality of arc-shaped paddles fixed to the side of the internally threaded sleeve close to the connecting block.

[0007] By adopting the above technical solution, the fastening structure is optimized, making the disassembly and replacement work more convenient.

[0008] Furthermore, a first oil filling hole is opened on the left side of the second sliding shoe block, an oil filling connecting hole is opened on the left side of the first sliding shoe block, a second oil filling hole is opened on the left side of the plunger ball head, and a third oil filling hole is opened on the left side of the plunger rod.

[0009] By adopting the above technical solution, the hydraulic oil can circulate normally.

[0010] Furthermore, the interior of the first oil injection hole is connected to the interior of the oil injection connecting hole, the cross-section of the oil injection connecting hole is a truncated cone, and the inner diameter of the right side of the oil injection connecting hole is larger than the inner diameter of the left side.

[0011] By adopting the above technical solution, the hydraulic oil can enter the interior of the oil injection connecting hole.

[0012] Further, the interior of the second oil filling hole is communicated with the interior of the oil filling connecting hole, and the interior of the second oil filling hole is communicated with the interior of the third oil filling hole.

[0013] By adopting the above technical solution, the hydraulic oil in the oil filling connecting hole can enter the third oil filling hole through the second oil filling hole.

[0014] Furthermore, the two positioning blocks are symmetrically distributed up and down, the two connecting grooves are symmetrically distributed up and down, and the left side of the connecting block abuts against the right side of the first sliding shoe block.

[0015] By adopting the above technical solution, the positioning block can cooperate with the positioning groove to position the second sliding shoe block, so that the connecting rod can normally enter the interior of the connecting groove for connection and installation.

[0016] Furthermore, two connecting rods are fixedly connected to one side of the second sliding shoe block and the connecting block, and the connecting rods can extend into the corresponding connecting grooves.

[0017] By adopting the above technical solution, the connecting rod can normally enter the interior of the connecting groove for installation.

[0018] Furthermore, the opposite sides of the corner blocks on the left and right sides are respectively fixedly connected to the outer sides of the corresponding clamping blocks, and the side of the gasket away from the connecting block abuts against the side of the corresponding clamping block close to the connecting block.

[0019] By adopting the above technical solution, the corner block can support the clamping block.

[0020] Furthermore, a side of the internally threaded sleeve away from the connecting block abuts against a side of the corresponding gasket close to the connecting block.

[0021] By adopting the above technical solution, the internal threaded sleeve can cooperate with the gasket to position the screw.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The novel plunger slipper assembly can connect the connecting block, the first slipper block and the second slipper block through the connecting assembly on the outside of the plunger ball head, and optimizes the fastening structure, so that the plunger slipper assembly can be disassembled and replaced more conveniently, so that it can maintain a high-performance working state and is very easy to operate, which greatly improves the disassembly and assembly efficiency and convenience of the plunger slipper assembly and improves the practicality of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of this application;

[0025] Figure 2 For this application structure Figure 1 A cross-sectional schematic diagram of

[0026] Figure 3 For this application structure Figure 2 A partial enlarged schematic diagram of the middle part;

[0027] Figure 4 For this application structure Figure 3 A three-dimensional schematic diagram of the internal thread sleeve connection structure.

[0028] In the figure: 1, plunger rod; 2, plunger ball head; 3, connecting block; 4, first sliding shoe block; 5, second sliding shoe block; 600, connecting assembly; 601, positioning block; 602, positioning groove; 603, connecting groove; 604, connecting rod; 605, clamping block; 606, angle block; 607, screw; 608, internal threaded sleeve; 609, gasket; 610, hexagonal groove; 611, arc-shaped pick; 701, first oil filling hole; 702, oil filling connecting hole; 703, second oil filling hole; 704, third oil filling hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0030] See also Figure 1-4 The present application provides a technical solution: a novel plunger shoe assembly, comprising a plunger rod 1, a plunger ball head 2 is fixed to the left side of the plunger rod 1, a connecting block 3 is sleeved on the outer side of the plunger ball head 2, a first shoe block 4 located on the left side of the connecting block 3 is sleeved on the outer side of the plunger ball head 2, a second shoe block 5 is abutted on the side of the first shoe block 4 away from the connecting block 3, a connecting assembly 600 for connecting the first shoe block 4, the connecting block 3 and the second shoe block 5 is installed on the outer side of the first shoe block 4; the connecting block 3, the first shoe block 4 and the second shoe block 5 can be connected through the connecting assembly 600 on the outer side of the plunger ball head 2, and the fastening structure is optimized, so that the plunger shoe assembly can be disassembled and replaced more conveniently, so that it can maintain a high-performance working state, and the operation is very convenient, which greatly improves the disassembly and assembly efficiency and convenience of the plunger shoe assembly, and improves the practicality of the overall structure.

[0031] In this embodiment, the connecting assembly 600 is a structure for facilitating the disassembly and replacement of the plunger shoe assembly.

[0032] like Figure 2 , Figure 3 and Figure 4As shown, the connecting assembly 600 includes two positioning blocks 601 fixed to the right side of the second sliding shoe block 5, two positioning grooves 602 opened on the left side of the first sliding shoe block 4, two connecting grooves 603 opened on the outside of the first sliding shoe block 4 and opened on both sides, four connecting rods 604 respectively fixed to the second sliding shoe block 5 and the opposite side of the connecting block 3, a clamping block 605 fixed to the other end of the connecting rod 604, a corner block 606 fixed to the side of the connecting rod 604 away from the plunger ball head 2, a screw 607 inserted between the left sides of the two corresponding clamping blocks 605, an internal threaded sleeve 608 threadedly connected to the outside of the screw 607, a gasket 609 sleeved on the outside of the screw 607, an internal hexagonal groove 610 opened on the outside of the internal threaded sleeve 608 and evenly distributed, and a plurality of arc-shaped paddles 611 fixed to the side of the internal threaded sleeve 608 close to the connecting block 3.

[0033] It should be noted that the two positioning blocks 601 are symmetrically distributed up and down, so that the positioning blocks 601 can cooperate with the positioning grooves 602 to position the second sliding shoe block 5, and the two connecting grooves 603 are symmetrically distributed up and down, so that the connecting rod 604 can normally enter the interior of the connecting grooves 603 for connection and installation. The left side of the connecting block 3 abuts against the right side of the first sliding shoe block 4, so that the connecting block 3, the first sliding shoe block 4 and the second sliding shoe block 5 can abut against each other, so as to form an integral structure after connection.

[0034] In addition, two connecting rods 604 are fixedly connected to the opposite sides of the second sliding shoe block 5 and the connecting block 3, and the connecting rods 604 can extend to the inside of the corresponding connecting groove 603, and the opposite sides of the left and right corner blocks 606 are respectively fixedly connected to the outer sides of the corresponding clamping blocks 605, so that the corner blocks 606 can support the clamping blocks 605, so that the connecting rods 604 can complete the connection function, wherein the side of the clamping block 605 close to the plunger ball head 2 is in contact with the inner side of the corresponding connecting groove 603.

[0035] At the same time, the side of the gasket 609 away from the connecting block 3 abuts against the side of the corresponding clamping block 605 close to the connecting block 3, and the side of the internal threaded sleeve 608 away from the connecting block 3 abuts against the side of the corresponding gasket 609 close to the connecting block 3, so that the internal threaded sleeve 608 can cooperate with the gasket 609 to position the screw 607, wherein the plunger rod 1, the plunger ball head 2, the connecting block 3, the first sliding shoe block 4 and the second sliding shoe block 5 are all made of cemented carbide, so that it has extremely strong wear resistance and hardness.

[0036] like Figure 1 and Figure 2As shown, a first oil filling hole 701 is opened on the left side of the second sliding shoe block 5, an oil filling connecting hole 702 is opened on the left side of the first sliding shoe block 4, a second oil filling hole 703 is opened on the left side of the plunger ball head 2, and a third oil filling hole 704 is opened on the left side of the plunger rod 1.

[0037] It should be noted that the interior of the first oil filling hole 701 is connected with the interior of the oil filling connection hole 702, the cross-section of the oil filling connection hole 702 is a truncated cone, the inner diameter of the right side of the oil filling connection hole 702 is larger than the inner diameter of the left side, the interior of the second oil filling hole 703 is connected with the interior of the oil filling connection hole 702, and the interior of the second oil filling hole 703 is connected with the interior of the third oil filling hole 704, so that the hydraulic oil can enter the interior of the oil filling connection hole 702 through the first oil filling hole 701, and then move to the interior of the second oil filling hole 703 and the third oil filling hole 704, so that the hydraulic oil can circulate normally, and because the inner diameter of the right side of the oil filling connection hole 702 is larger than the inner diameter of the left side, when the first sliding shoe block 4 rotates on the outside of the plunger ball head 2, the hydraulic oil can also flow into the interior of the second oil filling hole 703 normally.

[0038] The working principle of the above embodiment is:

[0039] When disassembling and replacing, use an inner hexagonal wrench to insert the inner side of the inner hexagonal groove 610, push the inner hexagonal wrench to drive the internal threaded sleeve 608 to rotate, so that it disengages from the outer side of the screw 607, and remove the internal threaded sleeve 608 and the gasket 609 from the outer side of the screw 607, so that the left clamping block 605 can be disengaged from the inside of the connecting groove 603, and the first sliding shoe block 4 is moved away from the plunger ball head 2, so that the first sliding shoe block 4 and the second sliding shoe block 5 can be replaced, and the spare first sliding shoe block 4 is sleeved on the left side of the plunger ball head 2, and the two clamping blocks 605 on the right side are moved to the inside of the two connecting grooves 603 respectively, and the second sliding shoe block 5 is moved to abut against the left side of the first sliding shoe block 4, and the two The positioning blocks 601 are respectively inserted into the inner sides of the two positioning grooves 602. At this time, the two clamping blocks 605 on the left are also located inside the connecting groove 603. The screw 607 is passed between the left sides of the two corresponding clamping blocks 605, and the gasket 609 and the internal threaded sleeve 608 are sleeved on the outside of the screw 607. The internal threaded sleeve 608 is rotated by the arc-shaped paddle 611 to make it fit the right side of the gasket 609. The hexagonal wrench is inserted into the inner side of the hexagonal groove 610 and rotated so that the internal threaded sleeve 608 can rotate under the driving action of the hexagonal wrench. When obvious resistance is felt, stop, and the internal threaded sleeve 608 can be threadedly connected and fixed to the screw 607 to complete the replacement work.

[0040] Compared with the prior art, the novel plunger slipper assembly can connect the connecting block 3, the first slipper block 4 and the second slipper block 5 through the connecting assembly 600 on the outside of the plunger ball head 2, and optimizes the fastening structure, so that the plunger slipper assembly can be disassembled and replaced more conveniently, so that it can maintain a high-performance working state and is very convenient to operate, which greatly improves the disassembly and assembly efficiency and convenience of the plunger slipper assembly, and improves the practicality of the overall structure, solving the shortcomings of the existing plunger slipper assembly in the actual operation process, such as poor convenience and inconvenience in tightening the locking nut.

Claims

1. A novel plunger shoe assembly, comprising a plunger rod (1), characterized in that: A plunger ball head (2) is fixed on the left side of the plunger rod (1); a connecting block (3) is sleeved on the outer side of the plunger ball head (2); a first sliding shoe block (4) located on the left side of the connecting block (3) is sleeved on the outer side of the plunger ball head (2); a second sliding shoe block (5) is abutted on the side of the first sliding shoe block (4) away from the connecting block (3); and a connecting assembly (600) for connecting the first sliding shoe block (4), the connecting block (3) and the second sliding shoe block (5) is installed on the outer side of the first sliding shoe block (4); The connecting assembly (600) comprises two positioning blocks (601) fixed to the right side of the second sliding shoe block (5), two positioning grooves (602) opened on the left side of the first sliding shoe block (4), two connecting grooves (603) opened on the outside of the first sliding shoe block (4) and opened on both the left and right sides, four connecting rods (604) respectively fixed to the second sliding shoe block (5) and the connecting block (3) on the opposite side, a clamping block (605) fixed to the other end of the connecting rod (604), and a clamping block (606) fixed to the connecting rod (607). 4) an angle block (606) on a side away from the plunger ball head (2), a screw (607) inserted between the left sides of the two corresponding clamping blocks (605), an internally threaded sleeve (608) threadedly connected to the outside of the screw (607), a gasket (609) sleeved on the outside of the screw (607), internal hexagonal grooves (610) opened on the outside of the internally threaded sleeve (608) and evenly distributed, and a plurality of arc-shaped paddles (611) fixed to the side of the internally threaded sleeve (608) close to the connecting block (3).

2. A novel plunger shoe assembly according to claim 1, characterized in that: A first oil filling hole (701) is provided on the left side of the second sliding shoe block (5), an oil filling connection hole (702) is provided on the left side of the first sliding shoe block (4), a second oil filling hole (703) is provided on the left side of the plunger ball head (2), and a third oil filling hole (704) is provided on the left side of the plunger rod (1).

3. A novel plunger shoe assembly according to claim 2, characterized in that: The interior of the first oil injection hole (701) is connected to the interior of the oil injection connecting hole (702); the cross section of the oil injection connecting hole (702) is truncated cone-shaped; the inner diameter of the right side of the oil injection connecting hole (702) is greater than the inner diameter of the left side.

4. A novel plunger sliding shoe assembly according to claim 2, characterized in that: The interior of the second oil injection hole (703) is connected to the interior of the oil injection connection hole (702), and the interior of the second oil injection hole (703) is connected to the interior of the third oil injection hole (704).

5. A novel plunger shoe assembly according to claim 1, characterized in that: The two positioning blocks (601) are symmetrically distributed up and down, the two connecting grooves (603) are symmetrically distributed up and down, and the left side of the connecting block (3) abuts against the right side of the first sliding shoe block (4).

6. A novel plunger shoe assembly according to claim 1, characterized in that: Two connecting rods (604) are fixedly connected to the opposite side of the second sliding shoe block (5) and the connecting block (3), and the connecting rods (604) can extend into the interior of the corresponding connecting groove (603).

7. A novel plunger shoe assembly according to claim 1, characterized in that: The opposite sides of the corner blocks (606) on the left and right sides are respectively fixedly connected to the outer sides of the corresponding clamping blocks (605), and the side of the gasket (609) away from the connecting block (3) abuts against the side of the corresponding clamping block (605) close to the connecting block (3).

8. A novel plunger shoe assembly according to claim 1, characterized in that: The side of the internal threaded sleeve (608) away from the connection block (3) abuts against the side of the corresponding gasket (609) close to the connection block (3).

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