CN220706098U

CN220706098U - Hydraulic linkage reversing device

Info

Publication number: CN220706098U
Application number: CN202321762290.4U
Authority: CN
Inventors: 于勤新; 杨波
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-04-02
Anticipated expiration: 2033-07-06

Abstract

The utility model discloses a hydraulic linkage reversing device, and relates to the technical field of linkage reversing devices. The utility model comprises a connecting cylinder, wherein two ends of the connecting cylinder are respectively connected with an upper valve body and a lower valve body, through holes are respectively formed at the opposite ends of the upper valve body and the lower valve body, a first pushing mechanism and a second pushing mechanism are respectively arranged in the two through holes, a liquid inlet and return mechanism is arranged at the outer walls of the upper valve body and the lower valve body, and the liquid inlet and return mechanism is communicated with the through holes. The upper reversing device controls the lower hydraulic cylinder to work, and the lower reversing device controls the upper hydraulic cylinder to work, so that a group of hydraulic driving linkage reversing devices can ensure that the upper hydraulic cylinder and the lower hydraulic cylinder automatically and continuously work.

Description

Hydraulic linkage reversing device

Technical Field

The utility model belongs to the field of linkage reversing devices, and particularly relates to a hydraulic linkage reversing device.

Background

The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). The device has simple structure and reliable operation. When the device is used for realizing reciprocating motion, a speed reducing device can be omitted, a transmission gap is avoided, the motion is stable, and the device is widely applied to hydraulic systems of various machines, but the existing bidirectional hydraulic device is realized in a mode of controlling an electromagnetic valve, the reversing action is realized by manual adjustment, the reliability is poor, the complexity of a control system is high, and the control system needs to be improved.

In summary, the present utility model provides a hydraulic linkage reversing device to solve the above problems.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a hydraulic linkage reversing device.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

the hydraulic linkage reversing device comprises a connecting cylinder, wherein two ends of the connecting cylinder are respectively connected with an upper valve body and a lower valve body, through holes are formed in the opposite ends of the upper valve body and the lower valve body, a first pushing mechanism and a second pushing mechanism are respectively arranged in the two through holes, a liquid inlet and return mechanism is arranged at the outer walls of the upper valve body and the lower valve body, and the liquid inlet and return mechanism is communicated with the through holes;

the upper communicating pipe and the lower communicating pipe are communicated between the upper valve body and the lower valve body and the connecting cylinder of the upper valve body, the upper communicating pipe and the lower communicating pipe are communicated with the through hole, the middle part of the inner wall of the connecting cylinder is connected with a connecting ring which divides the connecting cylinder into a first cavity and a second cavity, the hollow part of the connecting ring is slidably matched with a piston rod, and two ends of the piston rod are respectively connected with an upper piston close to the upper valve body and a lower piston close to the lower valve body.

Optionally, the first pushing mechanism includes the last end cover that is located the through-hole first end that the last valve body was seted up, and the one end of going up end cover is connected with case mechanism, goes up case mechanism and includes first cover body and second cover body, is provided with the logical liquid case of going up between the first cover body and the second cover body, and the one end that the second cover body is close to the piston rod is connected with the location valve rod, and the week side cover of going up the location valve rod is equipped with location valve pocket, and the one end that goes up the location valve rod and is close to the piston rod is connected with the ejector pin that resets, and the week side cover of going up the ejector pin that resets is equipped with and goes up the plug and seal, goes up the one end cover that the plug was sealed and is equipped with fixed cover.

Optionally, the second pushing mechanism includes the lower end cover that is located the through-hole first end that the lower valve body was seted up, the one end of lower end cover is connected with case mechanism, case mechanism includes the third cover body and the fourth cover body down, be provided with down logical liquid case between the third cover body and the fourth cover body, the one end that the logical liquid case is close to the piston rod down is connected with down the location valve rod, the week side cover of location valve rod is equipped with down the location valve pocket down, the one end that the location valve rod is close to the piston rod down is connected with down the ejector pin that resets down, the week side cover of ejector pin that resets down is equipped with down and generally fills up and seal, the one end cover that down generally fills up and be equipped with down fixed cover down.

Optionally, the feed liquor returns liquid mechanism and includes the feed liquor pipe, the return liquid pipe of connecting respectively in switching-over device top and below, and the week side of feed liquor pipe is connected with two upper branch pipes that communicate respectively with between upper valve body, the lower valve body, and the week side of return liquid pipe is connected with two lower branch pipes that communicate respectively with between upper valve body, the lower valve body.

Optionally, the upper part of the inner wall of the first cavity is penetrated and provided with an upper liquid through hole and an upper discharge hole, the lower part of the inner wall of the second cavity is penetrated and provided with a lower liquid through hole and a lower discharge hole, and the upper discharge hole and the lower discharge hole are connected with a liquid discharge pipe penetrating through the connecting cylinder.

Optionally, the cross sections of the upper communicating pipe and the lower communicating pipe are of U-shaped pipe structures, and the upper communicating pipe and the lower communicating pipe are arranged in a staggered mode.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects, and of course, any product for implementing the utility model does not necessarily need to achieve all the following advantages at the same time:

the upper reversing device controls the lower hydraulic cylinder to work, and the lower reversing device controls the upper hydraulic cylinder to work, so that a group of hydraulic driving linkage reversing devices can ensure that the upper hydraulic cylinder and the lower hydraulic cylinder automatically and continuously work.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The drawings in the following description are only examples of embodiments from which other drawings may be derived by those skilled in the art without the exercise of inventive faculty. In the drawings:

FIG. 1 is a schematic cross-sectional view of a linkage reversing device according to an embodiment of the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1. a connecting cylinder; 2. an upper valve body; 3. a lower valve body; 4. a through hole; 5. an upper communicating pipe; 6. a lower communicating pipe; 7. a connecting ring; 8. a piston rod; 9. an upper piston; 10. a lower piston; 11. an upper seal end cap; 12. a first cover; 13. a second cover; 14. a liquid valve core is arranged on the upper part; 15. an upper positioning valve rod; 16. an upper positioning valve sleeve; 17. an upper reset ejector rod; 18. sealing by filling in a plug; 19. an upper fixed cover; 20. a lower seal end cap; 21. a third cover; 22. a fourth cover; 23. a liquid valve core is downwards communicated; 24. a lower positioning valve rod; 25. a lower positioning valve sleeve; 26. a lower reset ejector rod; 27. sealing by a lower plug; 28. a lower fixed cover; 29. a liquid inlet pipe; 30. a liquid return pipe; 31. an upper branch pipe; 32. a lower branch pipe; 33. an upper liquid through hole; 34. an upper discharge hole; 35. a lower liquid through hole; 36. a lower discharge hole; 37. and a liquid discharge pipe.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, in this embodiment, a hydraulic linkage reversing device is provided, including a connecting cylinder 1, two ends of the connecting cylinder 1 are respectively connected with an upper valve body 2 and a lower valve body 3, the upper valve body 2, the lower valve body 3 and the connecting cylinder 1 are made of stainless steel, opposite ends of the upper valve body 2 and the lower valve body 3 are respectively provided with a through hole 4, in order to place a first pushing mechanism and a second pushing mechanism for subsequent position change of a piston rod 8, the inside of the two through holes 4 is respectively provided with the first pushing mechanism and the second pushing mechanism, the first pushing mechanism and the second pushing mechanism can respectively push each other to achieve the action of linkage reversing, the outer walls of the upper valve body 2 and the lower valve body 3 are provided with a liquid inlet and liquid return mechanism, and the liquid inlet and return mechanism is used for completing circulation of liquid, and the liquid inlet and return mechanism is communicated with the through holes 4;

the upper communicating pipe 5 and the lower communicating pipe 6 are communicated between the upper valve body 2 and the lower valve body 3 and the connecting cylinder 1 thereof, the upper communicating pipe 5 and the lower communicating pipe 6 are convenient for subsequent liquid to enter the through hole 4, the first pushing mechanism and the second pushing mechanism for assisting force are achieved, the upper communicating pipe 5 and the lower communicating pipe 6 are communicated with the through hole 4, the middle part of the inner wall of the connecting cylinder 1 is connected with the connecting ring 7 which divides the connecting cylinder 1 into a first cavity and a second cavity, the connecting ring 7 is arranged at the inner part of the connecting cylinder 1 in an integrated manner, the liquid can be discharged respectively through the arrangement of the first cavity and the second cavity, the hollow part of the connecting ring 7 is in sliding fit with the piston rod 8, two ends of the piston rod 8 are respectively connected with the upper piston 9 which is close to the upper valve body 2 and the lower piston 10 which is close to the lower valve body 3, the upper piston 9 is in sealing fit at the inner wall of the first cavity, and the lower piston 10 is fit at the inner wall of the second cavity, wherein the fitting manner can be adopted to fit at the inner wall of the connecting cylinder 1 in a sealing ring manner.

The first pushing mechanism comprises an upper sealing end cover 11 positioned at the first end of a through hole 4 formed in the upper valve body 2, the upper sealing end cover 11 is attached to the first end of the through hole 4 formed in the upper valve body 2 in a sealing ring mode, one end of the upper sealing end cover 11 is connected with a valve core mechanism, the valve core mechanism is used for controlling the flow of liquid, the upper valve core mechanism comprises a first cover body 12 and a second cover body 13, an upper liquid through valve core 14 is arranged between the first cover body 12 and the second cover body 13, through grooves for placing the upper liquid through valve core 14 are formed on opposite sides of the first cover body 12 and the second cover body 13, one end of the second cover body 13, which is close to a piston rod 8, is connected with an upper positioning valve rod 15, the upper positioning valve rod 15 is also used for controlling the flow of liquid, an upper positioning valve sleeve 16 is sleeved on the periphery of the upper positioning valve rod 15, the upper positioning valve sleeve 16 is used for improving the tightness of the upper positioning valve rod 15, the upper positioning valve rod 15 is connected with an upper reset ejector rod 17 near one end of the piston rod 8, the upper positioning valve rod 15 can push the upper reset ejector rod 17 to change the position through the flow of liquid, an upper flood-plug seal 18 is sleeved on the periphery of the upper reset ejector rod 17, an upper fixed cover 19 is sleeved on one end of the upper flood-plug seal 18, the upper flood-plug seal 18 and the upper fixed cover 19 are used for improving the tightness of the upper reset ejector rod 17, the second pushing mechanism comprises a lower sealing end cover 20 positioned at the first end of a through hole 4 formed in the lower valve body 3, the lower sealing end cover 20 is attached to the first end of the through hole 4 formed in the lower valve body 3 in a sealing ring manner, one end of the lower sealing end cover 20 is connected with a valve core mechanism, the lower valve core mechanism comprises a third cover body 21 and a fourth cover body 22, a lower liquid through valve core 23 is arranged between the third cover body 21 and the fourth cover body 22, through grooves for placing the upper liquid through valve core 14 are formed on the opposite sides of the third cover body 21 and the fourth cover body 22, the utility model controls the lower hydraulic cylinder to work through an upper reversing device, controls the upper hydraulic cylinder to work through the lower reversing device, and thus a group of hydraulic drive linkage reversing devices can ensure the automatic continuous work of the upper hydraulic cylinder and the lower hydraulic cylinder, and the hydraulic drive device has the advantages of strong safety reliability, simple and convenient operation, wide application range and reduced fault rate, and meets the requirements on firmness in use.

The liquid inlet and return mechanism comprises a liquid inlet pipe 29 and a liquid return pipe 30 which are respectively connected above and below the reversing device, two upper branch pipes 31 which are respectively communicated with the upper valve body 2 and the lower valve body 3 are connected to the periphery of the liquid inlet pipe 29, two lower branch pipes 32 which are respectively communicated with the upper valve body 2 and the lower valve body 3 are connected to the periphery of the liquid return pipe 30, the two upper branch pipes 31 are respectively positioned in spaces reserved by the upper sealing end cover 11, the upper valve core mechanism, the lower sealing end cover 20 and the lower valve core mechanism, and the two lower branch pipes 32 are respectively positioned in spaces reserved by the upper valve core mechanism, the upper reset ejector rod 17, the lower valve core mechanism and the lower reset ejector rod 26, and can reach the backflow treatment of liquid through the upper branch pipes 31 and the lower branch pipes 32 which are mutually communicated.

The upper part of the inner wall of the first cavity is penetrated and provided with an upper liquid through hole 33 and an upper discharge hole 34, the lower part of the inner wall of the second cavity is penetrated and provided with a lower liquid through hole 35 and a lower discharge hole 36, the upper discharge hole 34 and the lower discharge hole 36 are both connected with a liquid discharge pipe 37 penetrating through the connecting cylinder 1, the upper liquid through hole 33 and the upper discharge hole 34, the lower liquid through hole 35 and the lower discharge hole 36 are arranged for completing the circulation of liquid, and the liquid discharge pipe 37 is used for discharging the liquid from the first cavity or the second cavity.

The cross section of upper communicating pipe 5 and lower communicating pipe 6 is U-shaped tube structure, and go up dislocation set between communicating pipe 5 and the lower communicating pipe 6, go up the first end of communicating pipe 5 and be located the space between the location valve rod and the upper reset ejector pin 17, go up the gap department that the second end of communicating pipe 5 is located between the upper cover body and the lower cover body, the first end of communicating pipe 6 is located the space between the location valve rod and the upper reset ejector pin 17 down, the second end of communicating pipe 6 is located the gap department between the third cover body 21 and the fourth cover body 22 down, the setting of upper communicating pipe 5 and lower communicating pipe 6 can be the liquid flow direction second cavity in the first cavity.

Working principle: liquid enters the first cover body 12 in the through hole 4 formed in the upper valve body 2 from the liquid inlet channel, then the liquid pushes the upper liquid through valve core 14 to move rightwards, a gap channel between the first cover body 12 and the upper liquid through valve core 14 is opened to enable the liquid to flow into the lower communicating pipe 6, then the liquid flows in the lower communicating pipe 6, then the liquid enters the second cavity through the lower liquid through hole 35 to push the piston to move leftwards, meanwhile, the liquid enters a space between the lower reset ejector rod 26 and the lower positioning valve rod 24 through the lower communicating pipe 6, then the liquid pushes the lower reset ejector rod 26 to reset leftwards, meanwhile, the lower positioning valve rod 24 is pushed to move rightwards, a gap channel between the lower liquid through valve core 23 and the third cover body 21 is opened, a gap channel between the lower liquid through valve core 23 and the fourth cover body 22 is closed, and the liquid in the first cavity is discharged into the liquid return pipe 30 through the upper communicating pipe 5, and a one-way stroke of the piston is completed;

when the upper piston 9 moves to the upper dead point, the liquid pushes the upper reset ejector rod 17 to move leftwards, simultaneously pushes the upper positioning valve rod 15 and the upper liquid passing valve core 14 to move leftwards, closes a gap channel between the upper liquid passing valve core 14 and the first cover body 12, and opens a gap channel between the upper liquid passing valve core 14 and the second cover body 13.

At the same time, liquid enters into the lower cover liquid cavity of the lower liquid passing valve of the lower valve body 3 from the liquid inlet channel, pushes the lower liquid passing valve core 23 to move leftwards, opens the upper communication pipe channel, and enters into the upper liquid cylinder through the upper liquid passing hole 33, pushes the upper piston 9 to move rightwards, and liquid in the lower liquid cylinder enters into the liquid return pipe 30 through the lower liquid passing hole 35 and the clearance channel between the lower communication pipe 6, the upper liquid passing valve core 14 and the second cover body 13.

The present utility model is not limited to the above embodiments, and any person who can learn the structural changes made under the teaching of the present utility model can fall within the scope of the present utility model if the present utility model has the same or similar technical solutions. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims

1. The hydraulic linkage reversing device is characterized by comprising a connecting cylinder (1), wherein two ends of the connecting cylinder (1) are respectively connected with an upper valve body (2) and a lower valve body (3), through holes (4) are formed in opposite ends of the upper valve body (2) and the lower valve body (3), a first pushing mechanism and a second pushing mechanism are respectively arranged in the two through holes (4), a liquid inlet and return mechanism is arranged at the outer walls of the upper valve body (2) and the lower valve body (3), and the liquid inlet and return mechanism is communicated with the through holes (4);

go up between valve body (2) and lower valve body (3) and connecting cylinder (1) thereof and have seted up last communicating pipe (5) and communicating pipe (6) down, go up communicating pipe (5) and communicating pipe (6) down and all communicate between through-hole (4), the intermediate position of connecting cylinder (1) inner wall is connected with go up connecting ring (7) that divide into first cavity and second cavity with connecting cylinder (1), the cavity position sliding fit of connecting ring (7) has piston rod (8), the both ends of piston rod (8) are connected with respectively and are close to last piston (9) of last valve body (2), be close to lower piston (10) of lower valve body (3).

2. The hydraulic linkage reversing device according to claim 1, wherein the first pushing mechanism comprises an upper sealing end cover (11) positioned at a first end of a through hole (4) formed in the upper valve body (2), one end of the upper sealing end cover (11) is connected with a valve core mechanism, the upper valve core mechanism comprises a first cover body (12) and a second cover body (13), an upper liquid through valve core (14) is arranged between the first cover body (12) and the second cover body (13), one end, close to the piston rod (8), of the second cover body (13) is connected with an upper positioning valve rod (15), an upper positioning valve sleeve (16) is sleeved on the peripheral side of the upper positioning valve rod (15), one end, close to the piston rod (8), of the upper positioning valve rod (15) is connected with an upper reset ejector rod (17), a peripheral side of the upper reset ejector rod (17) is sleeved with an upper flood-plug seal (18), and one end of the upper flood-plug seal (18) is sleeved with an upper fixing cover (19).

3. The hydraulic linkage reversing device according to claim 1, wherein the second pushing mechanism comprises a lower sealing end cover (20) positioned at a first end of a through hole (4) formed in the lower valve body (3), one end of the lower sealing end cover (20) is connected with a valve core mechanism, the lower valve core mechanism comprises a third cover body (21) and a fourth cover body (22), a lower liquid through valve core (23) is arranged between the third cover body (21) and the fourth cover body (22), one end, close to the piston rod (8), of the lower liquid through valve core (23) is connected with a lower positioning valve rod (24), a lower positioning valve sleeve (25) is sleeved on the peripheral side of the lower positioning valve rod (24), one end, close to the piston rod (8), of the lower positioning valve rod (24) is connected with a lower reset ejector rod (26), a lower flood plug seal (27) is sleeved on the peripheral side of the lower reset ejector rod (26), and a lower fixing cover (28) is sleeved on one end of the lower flood plug seal (27).

4. The hydraulic linkage reversing device according to claim 1, wherein the liquid inlet and return mechanism comprises a liquid inlet pipe (29) and a liquid return pipe (30) which are respectively connected above and below the reversing device, two upper branch pipes (31) which are respectively communicated with the upper valve body (2) and the lower valve body (3) are connected to the periphery of the liquid inlet pipe (29), and two lower branch pipes (32) which are respectively communicated with the upper valve body (2) and the lower valve body (3) are connected to the periphery of the liquid return pipe (30).

5. The hydraulic linkage reversing device according to claim 1, wherein an upper liquid through hole (33) and an upper discharge hole (34) are formed in the upper portion of the inner wall of the first cavity in a penetrating manner, a lower liquid through hole (35) and a lower discharge hole (36) are formed in the lower portion of the inner wall of the second cavity in a penetrating manner, and the upper discharge hole (34) and the lower discharge hole (36) are both connected with a liquid discharge pipe (37) penetrating through the connecting cylinder (1).

6. The hydraulic linkage reversing device according to claim 1, wherein the cross sections of the upper communicating pipe (5) and the lower communicating pipe (6) are of U-shaped pipe structures, and the upper communicating pipe (5) and the lower communicating pipe (6) are arranged in a staggered manner.