Overturn-preventing sliding shoe assembly

Abstract

The invention relates to the technical field of sliding shoe assemblies, and discloses an anti-overturning sliding shoe assembly which comprises a plunger and a sliding shoe body. The piston shoe body is arranged on one side of the plunger, a ball groove is formed in one side of the plunger, an oil storage groove is formed in the plunger, a cover plate is installed on one side of the plunger, a pressing plate is arranged on one side of the plunger, a base plate is arranged between the pressing plate and the plunger body, a plurality of first lead screws are connected to one side of the plunger, and a plurality of second lead screws are connected to the other side of the plunger. The first lead screws are connected with the two sides of the pressing plate correspondingly. A ball head is arranged on one side of the sliding shoe body, a neck portion is machined on one side of the ball head, a carrier plate is fixed on one side of the neck portion, one side of the carrier plate is connected with the sliding shoe body, a first oil inlet hole is formed in the sliding shoe body, and a plurality of second oil inlet holes are formed in the carrier plate. A second lead screw transversely penetrates through the cover plate, the second lead screw is rotationally connected with the cover plate, and a push plate is connected to the second lead screw.

Description

Technical Field

[0001] The present invention relates to the technical field of sliding shoe assemblies, and more particularly to an anti-overturning sliding shoe assembly. Background Art

[0002] The hydraulic element slipper assembly is an important energy conversion element in the high-pressure hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the hydraulic oil in the closed chamber, realize the suction or extrusion of the hydraulic oil in the hydraulic circuit, and convert the mechanical energy provided by the motor into hydraulic energy. The slipper assembly has the advantages of high rated pressure, compact structure, high efficiency and convenient flow regulation. It is widely used in aerospace, engineering machinery and other industries. The development of the slipper assembly industry in my country started late, and there is a large gap with foreign technology levels. In the high-end market, it mainly relies on imports, especially in the application field of high pressure, high speed and miniaturization, there is a very large supply gap.

[0003] Slippers are often used in slipper assemblies. Important energy conversion is carried out through the cooperation of the slipper and the plunger. In this process, the slipper on the plunger needs to be in contact with the slipper plate for a long time. When the slipper assembly works at high speed, the slipper may overturn due to the action of centrifugal force. Therefore, people usually change the torque to prevent overturning, such as the Chinese invention patent with announcement number CN117514680A.

[0004] However, people will find in actual use that due to the eccentric design of the oil hole, when the lubricating oil is injected from the inside of the plunger to the ball head, it takes a long time to flow into the ball groove due to the large eccentric angle of the oil hole. After the slipper has been working for a long time, it is difficult to replenish lubrication in time, thereby reducing the steering flexibility of the slipper. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an anti-overturning sliding shoe assembly, which has the advantage of more precise operation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-overturning sliding shoe assembly, comprising: a plunger and a sliding shoe body; the sliding shoe body is arranged on one side of the plunger, a ball groove is provided on the side of the plunger close to the sliding shoe body, an oil storage groove is provided inside the plunger, the oil storage groove is connected to the ball groove, a cover plate is installed on the side of the plunger away from the sliding shoe body, a pressure plate is provided on the side of the plunger away from the cover plate, a pad is provided between the pressure plate and the plunger body, a plurality of first screw rods are connected to the side of the plunger close to the pressure plate, the first screw rods penetrate the pad and the pressure plate, and the first screw rods are respectively connected to the two sides of the pressure plate; the sliding shoe body close to the plunger A ball head is provided on one side, and the ball head is arranged inside the ball groove. A neck is processed on the side of the ball head close to the slipper body, and a carrier plate is fixed on the side of the neck close to the slipper body, and the carrier plate is connected to the slipper body on a side away from the neck. A first oil inlet hole is provided on the slipper body, and a plurality of second oil inlet holes are provided on the carrier plate, and the first oil inlet hole and the second oil inlet hole respectively pass through the slipper body and the carrier plate horizontally; a second screw rod passes through the cover plate horizontally, and the second screw rod is rotatably connected to the cover plate, and one end of the second screw rod extends into the oil storage tank, and a push plate is connected to the second screw rod, and the push plate corresponds to the ball groove on a side away from the second screw rod.

[0007] As a preferred technical solution of the present invention, the plunger is a cylindrical structure, the cover plate and the slipper body are threadedly connected to the plunger and the carrier plate respectively, and the side of the slipper body is processed with an anti-slip groove; it is convenient for people to replace the cover plate and the slipper body.

[0008] As a preferred technical solution of the present invention, the pad is made of rubber material, and the two sides of the pad are respectively in contact with the plunger and the pressure plate, and the radii of the pad and the pressure plate are equal to the plunger; the position of the pressure plate can be adjusted to facilitate the activity space of the ball head.

[0009] As a preferred technical solution of the present invention, a first plug and a plurality of second plugs are respectively provided on the sliding shoe body and the carrier plate, and the first plug and the second plug are respectively connected to the first oil inlet hole and the second oil inlet hole to prevent oil leakage from the first oil inlet hole and the second oil inlet hole.

[0010] As a preferred technical solution of the present invention, a groove and a lubrication groove are provided on the side of the ball head away from the neck, the groove is fan-shaped on the surface of the ball head, the lubrication groove is arranged at the center of the groove, and the side of the lubrication groove away from the ball head corresponds to the oil storage groove, so that the lubricating oil can be fully attached to the inner wall of the ball groove.

[0011] As a preferred technical solution of the present invention, the gap between the ball head and the inner wall of the ball groove is set between 0.015 and 0.025 mm, and the thickness of the pad between the plunger and the pressure plate is controlled between 0 and 0.3 mm; this facilitates lubrication of the ball head by lubricating oil inside the ball groove.

[0012] As a preferred technical solution of the present invention, the side of the ball groove close to the neck and the side edge of the neck are processed into arc surfaces to prevent the ball groove from being damaged by friction on the neck.

[0013] As a preferred technical solution of the present invention, the radius of the push plate is equal to the radius of the oil storage tank, and a limit plate is fixed at one end of the first screw rod close to the ball groove, so that the second screw rod can drive the push plate to move.

[0014] As a preferred technical solution of the present invention, a guide member is fixed on the side of the push plate away from the cover plate, the guide member is a cylindrical structure, and a through hole is opened on the side of the guide member away from the push plate, and the through hole corresponds to the ball groove.

[0015] As a preferred technical solution of the present invention, the second oil inlet holes are distributed on the carrier plate in a circular array, and the first oil inlet hole and the second oil inlet hole are both connected to the oil outlet hole, so as to improve the efficiency of oil intake.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a second screw in the oil storage tank to control the movement of the push plate, the lubrication groove in the oil storage tank can be pushed to flow into the ball groove, which can not only increase the flow speed of the lubricating oil and improve the lubrication efficiency, but also guide the lubricating oil in the oil outlet hole into the oil storage tank through the guide member, which greatly saves people's working time and provides convenience for people's oiling and oiling work. A carrier plate with multiple second oil inlet holes is also connected to the slipper body, so that people can choose multiple oil holes or a single oil hole according to the required amount of oil, reasonably allocate working time, and operate conveniently. The pressure plate arranged on the plunger can be adjusted according to the first screw, so that the thickness of the pad changes, thereby controlling the distance between the ball head and the inner wall of the ball groove, preventing the ball head from loosening with the slipper body, and reducing the probability of the slipper body overturning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the carrier plate of the present invention;

[0019] Figure 3 It is a schematic diagram of the overall structure of the ball head of the present invention;

[0020] Figure 4It is a schematic diagram of the overall structure of the plunger of the present invention;

[0021] Figure 5 It is a schematic diagram of the explosion structure of the plunger of the present invention.

[0022] In the figure: 1. plunger; 2. sliding shoe body; 3. pressure plate; 4. pad; 5. first plug; 6. first oil inlet hole; 7. carrier plate; 8. second oil inlet hole; 9. second plug; 10. ball head; 11. neck; 12. groove; 13. lubrication groove; 14. oil outlet hole; 15. first screw rod; 16. ball groove; 17. oil storage tank; 18. cover plate; 19. second screw rod; 20. push plate; 21. guide member. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figures 1 to 5As shown, the present invention provides an anti-overturning slipper assembly, comprising: a plunger 1 and a slipper body 2; the slipper body 2 is arranged on one side of the plunger 1, a ball groove 16 is provided on the side of the plunger 1 close to the slipper body 2, an oil storage tank 17 is provided inside the plunger 1, and the oil storage tank 17 is connected to the ball groove 16, a cover plate 18 is installed on the side of the plunger 1 away from the slipper body 2, a pressure plate 3 is provided on the side of the plunger 1 away from the cover plate 18, a pad 4 is provided between the pressure plate 3 and the plunger 1 body, a plurality of first screw rods 15 are connected to the side of the plunger 1 close to the pressure plate 3, the first screw rods 15 penetrate the pad 4 and the pressure plate 3, and the first screw rods 15 are respectively connected to the two sides of the pressure plate 3; a ball head 10 is provided on the side of the slipper body 2 close to the plunger 1, The ball head 10 is arranged inside the ball groove 16, and a neck 11 is processed on the side of the ball head 10 close to the slipper body 2, and a carrier plate 7 is fixed on the side of the neck 11 close to the slipper body 2, and the side of the carrier plate 7 away from the neck 11 is connected to the slipper body 2, and a first oil inlet hole 6 is opened on the slipper body 2, and a plurality of second oil inlet holes 8 are opened on the carrier plate 7, and the first oil inlet hole 6 and the second oil inlet hole 8 respectively pass through the slipper body 2 and the carrier plate 7 horizontally; a second screw rod 19 passes through the cover plate 18 horizontally, and the second screw rod 19 is rotatably connected to the cover plate 18, and one end of the second screw rod 19 extends into the oil storage tank 17, and a push plate 20 is connected to the second screw rod 19, and the side of the push plate 20 away from the second screw rod 19 corresponds to the ball groove 16.

[0025] Among them, the plunger 1 is a cylindrical structure, the cover plate 18 and the slipper body 2 are threadedly connected to the plunger 1 and the carrier plate 7 respectively, and the side of the slipper body 2 is processed with an anti-slip groove; it is convenient for people to replace the cover plate 18 and the slipper body 2.

[0026] Among them, the pad 4 is made of rubber material, and the two sides of the pad 4 are respectively in contact with the plunger 1 and the pressure plate 3, and the radii of the pad 4 and the pressure plate 3 are equal to the plunger 1; it is convenient to adjust the position of the pressure plate 3 to adjust the activity space of the ball head 10.

[0027] Among them, the first plug 5 and several second plugs 9 are respectively arranged on the sliding shoe body 2 and the carrier plate 7, and the first plug 5 and the second plug 9 are respectively connected to the first oil inlet hole 6 and the second oil inlet hole 8 to prevent oil leakage from the first oil inlet hole 6 and the second oil inlet hole 8.

[0028] Among them, a groove 12 and a lubrication groove 13 are opened on the side of the ball head 10 away from the neck 11, and the groove 12 is opened in a fan shape on the surface of the ball head 10. The lubrication groove 13 is set at the center position of the groove 12, and the side of the lubrication groove 13 away from the ball head 10 corresponds to the oil storage groove 17, so as to facilitate the lubricating oil to be fully attached to the inner wall of the ball groove 16.

[0029] The gap between the ball head 10 and the inner wall of the ball groove 16 is set between 0.015 and 0.025 mm, and the thickness of the pad 4 between the plunger 1 and the pressure plate 3 is controlled between 0 and 0.3 mm, so that the lubricating oil can lubricate the ball head 10 inside the ball groove 16 .

[0030] The side of the ball groove 16 close to the neck 11 and the side edge of the neck 11 are processed into arc surfaces to prevent the ball groove 16 from being damaged by friction with the neck 11 .

[0031] The radius of the push plate 20 is equal to the radius of the oil storage tank 17 , and a limit plate is fixed to one end of the first screw rod 15 close to the ball groove 16 , so that the second screw rod 19 can drive the push plate 20 to move.

[0032] A guide member 21 is fixed to a side of the push plate 20 away from the cover plate 18 . The guide member 21 is a cylindrical structure. A through hole is formed on a side of the guide member 21 away from the push plate 20 . The through hole corresponds to the ball groove 16 .

[0033] The second oil inlet holes 8 are distributed on the carrier plate 7 in a circular array, and the first oil inlet holes 6 and the second oil inlet holes 8 are both connected to the oil outlet hole 14, so as to improve the efficiency of oil intake.

[0034] The working principle and use process of the present invention are as follows: when people are filling oil into the oil storage tank 17, they can choose to use the first oil inlet hole 6 or the second oil inlet hole 8 according to the amount of oil in the oil storage tank 17. If the first oil inlet hole 6 is selected, it is only necessary to remove the first plug 5 and directly fill the oil. If the second oil inlet hole 8 is selected for oil filling, it is necessary to remove the sliding shoe body 2 from the carrier plate 7, and then remove the second plug 9 at the second oil inlet hole 8. The setting of several oil inlet holes can improve the efficiency of oil filling. During the oil filling process, the lubricating oil will pass through the neck 11 and the ball head 10, and enter the oil storage tank 17 from the oil outlet hole 14 set at the ball head 10. When the lubricating oil flows to the lubrication groove 13, people rotate the second screw rod 19 on the cover plate 18 so that the second screw rod 19 drives the push plate 20 to move away. When the push plate 20 drives the guide member 21 to retreat, the lubricating oil will be sucked out of the lubricating groove 13, thereby improving the efficiency of oil injection, and the lubricating oil in the lubricating groove 13 will also flow along the groove 12 to the two sides of the ball head 10, and when the ball head 10 rotates in the ball groove 16, the lubricating oil will be coated on the inner wall of the ball groove 16; when the ball head 10 becomes loose inside the ball groove 16, people rotate the first screw 15 on the plunger 1 to press the pressure plate 3 toward the direction of the pad 4, so that the thickness of the pad 4 becomes smaller, and the distance between the ball head 10 and the ball groove 16 can be controlled by limiting the pressure plate 3, thereby slowing down the loosening of the ball head 10 and preventing the sliding shoe body 2 from overturning.

[0035] 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.

[0036] Although 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. An anti-overturning sliding shoe assembly, characterized in that: The invention comprises: a plunger (1) and a sliding shoe body (2); the sliding shoe body (2) is arranged on one side of the plunger (1); a ball groove (16) is provided on the side of the plunger (1) close to the sliding shoe body (2); an oil storage groove (17) is provided inside the plunger (1); the oil storage groove (17) is connected to the ball groove (16); a cover plate (18) is installed on the side of the plunger (1) away from the sliding shoe body (2); and the side of the plunger (1) away from the cover plate (18) A pressure plate (3) is provided, a pad (4) is provided between the pressure plate (3) and the plunger (1) body, a plurality of first screw rods (15) are connected to the side of the plunger (1) close to the pressure plate (3), the first screw rods (15) penetrate the pad (4) and the pressure plate (3), and the first screw rods (15) are respectively connected to the two sides of the pressure plate (3); a ball head (10) is provided on the side of the sliding shoe body (2) close to the plunger (1), and the ball head (10) is provided The ball head (10) is disposed inside the ball groove (16); a neck (11) is processed on a side of the ball head (10) close to the shoe body (2); a carrier plate (7) is fixed on a side of the neck (11) close to the shoe body (2); a side of the carrier plate (7) away from the neck (11) is connected to the shoe body (2); a first oil inlet hole (6) is provided on the shoe body (2); a plurality of second oil inlet holes (8) are provided on the carrier plate (7); the first oil inlet hole (6) and The second oil inlet hole (8) respectively passes through the sliding shoe body (2) and the carrier plate (7) transversely; a second screw rod (19) passes through the cover plate (18) transversely, the second screw rod (19) is rotatably connected to the cover plate (18), one end of the second screw rod (19) extends into the oil storage tank (17), and a push plate (20) is connected to the second screw rod (19), and the side of the push plate (20) away from the second screw rod (19) corresponds to the ball groove (16).

2. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: The plunger (1) is a cylindrical structure; the cover plate (18) and the sliding shoe body (2) are respectively threadedly connected to the plunger (1) and the carrier plate (7); and the side surface of the sliding shoe body (2) is processed with an anti-slip groove.

3. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: The pad (4) is made of rubber, and two sides of the pad (4) are respectively in contact with the plunger (1) and the pressure plate (3), and the radii of the pad (4) and the pressure plate (3) are equal to those of the plunger (1).

4. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: The sliding shoe body (2) and the carrier plate (7) are respectively provided with a first plug (5) and a plurality of second plugs (9); the first plug (5) and the second plug (9) are respectively connected to the first oil inlet hole (6) and the second oil inlet hole (8).

5. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: A groove (12) and a lubrication groove (13) are provided on a side of the ball head (10) away from the neck (11); the groove (12) is provided on the surface of the ball head (10) in a fan shape; the lubrication groove (13) is arranged at the center of the groove (12); and the side of the lubrication groove (13) away from the ball head (10) corresponds to the oil storage groove (17).

6. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: The gap between the ball head (10) and the inner wall of the ball groove (16) is set between 0.015 and 0.025 mm, and the thickness of the pad (4) between the plunger (1) and the pressure plate (3) is controlled between 0 and 0.3 mm.

7. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: The side of the ball groove (16) close to the neck (11) and the side edge of the neck (11) are both processed into arc surfaces.

8. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: The radius of the push plate (20) is equal to the radius of the oil storage groove (17), and a limit plate is fixed to one end of the first screw rod (15) close to the ball groove (16).

9. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: A guide member (21) is fixed on the side of the push plate (20) away from the cover plate (18), and the guide member (21) is a cylindrical structure. A through hole is opened on the side of the guide member (21) away from the push plate (20), and the through hole corresponds to the ball groove (16).

10. The anti-overturning sliding shoe assembly according to claim 1, characterized in that: The second oil inlet holes (8) are distributed in a ring array on the carrier plate (7), and the first oil inlet hole (6) and the second oil inlet hole (8) are both connected to the oil outlet hole (14).

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