CN214837508U

CN214837508U - Multistage hydraulic cylinder with improved structure

Info

Publication number: CN214837508U
Application number: CN202121617436.7U
Authority: CN
Inventors: 张坚; 赵红兵; 李鑫杰; 陈俊
Original assignee: Wuxi Lishide Machine Co ltd
Current assignee: Wuxi Lishide Machine Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-11-23
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a multistage hydraulic cylinder of institutional advancement, including the one-level hydro-cylinder, the sealed lid of one-level hydro-cylinder's one end fixedly connected with, circumference one side integrated into one piece of one-level hydro-cylinder has first base and second base, has pegged graft respectively in first base and the second base first oil pipe and second oil pipe, sliding connection has the one-level piston in the one-level hydro-cylinder, and one-level piston circumference inner wall threaded connection has the second grade hydro-cylinder, and sliding connection has the second grade piston in the second grade hydro-cylinder, and the circumference outer wall threaded connection of second grade piston has the delivery rod, the one end threaded connection of second grade hydro-cylinder has the end cover, and the mounting hole has been seted up to circumference one side of end cover, one side fixedly connected with mounting panel of sealed lid. The utility model discloses can be when hydraulic cylinder breaks down, can dismantle hydraulic cylinder to the convenient maintenance to hydraulic cylinder has promoted hydraulic cylinder's the efficiency of dismantling, makes things convenient for hydraulic cylinder's use.

Description

Multistage hydraulic cylinder with improved structure

Technical Field

The utility model relates to a multistage hydraulic cylinder technical field especially relates to a multistage hydraulic cylinder of institutional advancement.

Background

The hydraulic cylinder is a hydraulic actuating element which can convert hydraulic energy into mechanical energy and can make linear reciprocating motion, and is simple in structure and reliable in operation, and when it is used for implementing reciprocating motion, it can remove speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems.

When the existing multistage hydraulic oil cylinder breaks down, the hydraulic oil cylinder cannot be rapidly disassembled, the disassembling efficiency of the hydraulic oil cylinder is reduced, the hydraulic oil cylinder is inconvenient to use, and the existing multistage hydraulic oil cylinder cannot well accord with actual needs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a structurally improved multistage hydraulic oil cylinder.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a multistage hydraulic cylinder of institutional advancement, includes the one-level hydro-cylinder, the sealed lid of one end fixedly connected with of one-level hydro-cylinder, circumference one side integrated into one piece of one-level hydro-cylinder has first base and second base, and it has first oil pipe and second oil pipe to peg graft respectively in first base and the second base, sliding connection has the one-level piston in the one-level hydro-cylinder, and one-level piston circumference inner wall threaded connection has the second grade hydro-cylinder, and sliding connection has the second grade piston in the second grade hydro-cylinder, and the circumference outer wall threaded connection of second grade piston has the output pole, the one end threaded connection of second grade hydro-cylinder has the end cover, and the mounting hole has been seted up to circumference one side of end cover.

Preferably, one side of the sealing cover is fixedly connected with a mounting plate.

Preferably, the first-stage oil cylinder is connected with a sealing plug in a sliding mode, and a conical block is inserted into one side of the sealing plug.

Preferably, one side of the circumference of the primary piston is embedded with two primary sealing rings, and one side of the circumference of the sealing plug is embedded with two sealing rings.

Preferably, the inner wall of the circumference of the secondary oil cylinder is provided with an oil groove, one side of the secondary piston is fixedly connected with a compression block, and the compression block is of a trapezoidal structure.

Preferably, the circumferential inner wall of the primary oil cylinder is fixedly connected with a primary stop dog, and the circumferential inner wall of the secondary oil cylinder is fixedly connected with a secondary stop dog.

Preferably, an installation cylinder is sleeved at one end of the output rod, two insertion holes are formed in one side of the installation cylinder and one side of the output rod, and a fixing bolt is inserted in each insertion hole.

Preferably, one side of the mounting cylinder is fixedly connected with a connecting block.

The utility model has the advantages that:

1. this device, through output lever and second grade piston and the mounting means between second grade hydro-cylinder and the one-level piston, can dismantle hydraulic cylinder when hydraulic cylinder breaks down to convenient maintenance to hydraulic cylinder has promoted hydraulic cylinder's the efficiency of dismantling, makes things convenient for hydraulic cylinder's use.

2. This device, through the mounting means of one-level piston and one-level sealing washer, can increase the leakproofness of one-level piston, prevents spilling of hydraulic oil, has increased the frictional force of counting one-level oil plug, has promoted the life of one-level piston.

3. This device is the setting of trapezium structure through the piece that receives, can increase the area of contact who receives piece and hydraulic oil, has increased the lifting surface area of second grade piston then, can promote the removal of second grade hydro-cylinder, has promoted the device's practicality.

Drawings

Fig. 1 is a schematic front view structural diagram of a multistage hydraulic oil cylinder with an improved structure provided by the utility model;

fig. 2 is a schematic sectional structural view of a multistage hydraulic oil cylinder with an improved structure provided by the present invention;

fig. 3 is an enlarged structural diagram of a point a of the multistage hydraulic cylinder with an improved structure provided by the utility model;

fig. 4 is the utility model provides a point B enlarged structure schematic diagram of a structurally improved multistage hydraulic cylinder.

In the figure: 1. a primary oil cylinder; 2. a sealing cover; 3. mounting a plate; 4. a first base; 5. a first oil pipe; 6. a second oil pipe; 7. a second base; 8. a secondary oil cylinder; 9. a sealing plug; 10. a conical block; 11. a primary piston; 12. a primary seal ring; 13. a seal ring; 14. a first-stage stop block; 15. a secondary piston; 16. an output rod; 17. an oil sump; 18. a pressed block; 19. a secondary stop block; 20. mounting the cylinder; 21. connecting blocks; 22. fixing the bolt; 23. mounting holes; 24. and (4) end covers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent may be understood by those skilled in the art as appropriate.

Referring to fig. 1-4, a multi-stage hydraulic cylinder with improved structure comprises a first-stage cylinder 1, a sealing cover 2 is fixed at one end of the first-stage cylinder 1 through a bolt, the sealing cover 2 is designed to increase the sealing performance of the first-stage cylinder 1, a first base 4 and a second base 7 are integrally formed at one side of the circumference of the first-stage cylinder 1, a first oil pipe 5 and a second oil pipe 6 are respectively inserted into the first base 4 and the second base 7, the first oil pipe 5 and the second oil pipe 6 are designed to facilitate the injection of hydraulic oil, a first-stage piston 11 is slidably connected in the first-stage cylinder 1, a second-stage cylinder 8 is in threaded connection with the inner wall of the circumference of the first-stage piston 11, a second-stage piston 15 is slidably connected in the second-stage cylinder 8, an output rod 16 is in threaded connection with the outer wall of the circumference of the second-stage piston 15, and the output rod 16 and the second-stage piston 15 are mounted between the second-stage cylinder 8 and the first-stage piston 11, can be when hydraulic cylinder breaks down, can dismantle hydraulic cylinder to convenient maintenance to hydraulic cylinder has promoted hydraulic cylinder's the efficiency of dismantling, makes things convenient for hydraulic cylinder's use, and the one end threaded connection of secondary oil cylinder 8 has end cover 24, and mounting hole 23 has been seted up to circumference one side of end cover 24.

In the utility model, one side of the sealing cover 2 is fixed with the mounting plate 3 through the bolt, the sealing plug 9 is connected in the first-level oil cylinder 1 in a sliding way, the conical block 10 is inserted into one side of the sealing plug 9, the one side of the circumference of the first-level piston 11 is embedded with two first-level sealing rings 12, the installation mode of the first-level piston 11 and the first-level sealing rings 12 can increase the sealing performance of the first-level piston 11, prevent the leakage of hydraulic oil, increase the friction force of the first-level oil plug, prolong the service life of the first-level piston 11, the two sealing rings 13 are embedded into one side of the circumference of the sealing plug 9, the oil groove 17 is arranged on the inner wall of the circumference of the second-level oil cylinder 8, one side of the second-level piston 15 is fixed with the pressure-bearing block 18 through the bolt, the pressure-bearing block 18 is in the design of a trapezoid structure, the contact area of the pressure-bearing block 18 and the hydraulic oil can be increased, then the stress area of the second-level piston 15 is increased, the second-level oil cylinder 8 can be pushed to move, the circumference inner wall of one-level hydro-cylinder 1 has one-level dog 14 through the bolt fastening, the circumference inner wall of second grade hydro-cylinder 8 has second grade dog 19 through the bolt fastening, installation section of thick bamboo 20 has been cup jointed to the one end of output rod 16, two spliced eyes have all been seted up to one side of installation section of thick bamboo 20 and output rod 16, the grafting has fixing bolt 22 in the spliced eye, there is connecting block 21 one side of installation section of thick bamboo 20 through the bolt fastening, installation section of thick bamboo 20, fixing bolt 22 and connecting block 21's mounting means, so that the dismantlement of installation section of thick bamboo 20, thereby make things convenient for the change of connecting block 21.

The working principle is as follows: during the use, when needs are dismantled hydraulic cylinder, at first utilize output lever 16 and the mode of second grade piston 15 threaded connection, can rotate output lever 16 and make output lever 16 and second grade piston 15 break away from, thereby take out output lever 16 from second grade hydro-cylinder 8, then, utilize the threaded connection mode of second grade hydro-cylinder 8 and one-level piston 11, can rotate second grade hydro-cylinder 8, make second grade hydro-cylinder 8 and one-level piston 11 break away from, thereby take out second grade hydro-cylinder 8 from one-level hydro-cylinder 1, thereby can be when multistage hydraulic cylinder breaks down, can dismantle hydraulic cylinder fast, the flexibility is good.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A multi-stage hydraulic oil cylinder with improved structure comprises a primary oil cylinder (1) and is characterized in that, one end of the primary oil cylinder (1) is fixedly connected with a sealing cover (2), a first base (4) and a second base (7) are integrally formed on one side of the circumference of the primary oil cylinder (1), a first oil pipe (5) and a second oil pipe (6) are respectively inserted into the first base (4) and the second base (7), a primary piston (11) is connected in the primary oil cylinder (1) in a sliding manner, a secondary oil cylinder (8) is connected on the circumferential inner wall of the primary piston (11) in a threaded manner, a secondary piston (15) is connected in the secondary oil cylinder (8) in a sliding manner, an output rod (16) is connected on the circumferential outer wall of the secondary piston (15) in a threaded manner, one end of the secondary oil cylinder (8) is in threaded connection with an end cover (24), and one side of the circumference of the end cover (24) is provided with a mounting hole (23).

2. A structurally improved multistage hydraulic ram according to claim 1, characterised in that a mounting plate (3) is fixedly connected to one side of said sealing cap (2).

3. The multistage hydraulic oil cylinder with the improved structure as claimed in claim 1, wherein a sealing plug (9) is connected in the first-stage oil cylinder (1) in a sliding mode, and a conical block (10) is inserted into one side of the sealing plug (9).

4. A multistage hydraulic cylinder with improved structure according to claim 3, characterized in that two primary sealing rings (12) are embedded on one side of the circumference of the primary piston (11), and two sealing rings (13) are embedded on one side of the circumference of the sealing plug (9).

5. The multistage hydraulic oil cylinder with the improved structure as claimed in claim 1, wherein an oil groove (17) is formed in the circumferential inner wall of the secondary oil cylinder (8), a pressure receiving block (18) is fixedly connected to one side of the secondary piston (15), and the pressure receiving block (18) is of a trapezoidal structure.

6. The multistage hydraulic oil cylinder with improved structure as claimed in claim 1, characterized in that a first-stage stop block (14) is fixedly connected to the circumferential inner wall of the first-stage oil cylinder (1), and a second-stage stop block (19) is fixedly connected to the circumferential inner wall of the second-stage oil cylinder (8).

7. The multistage hydraulic oil cylinder with the improved structure as claimed in claim 1, wherein one end of the output rod (16) is sleeved with a mounting cylinder (20), two inserting holes are formed in one side of the mounting cylinder (20) and one side of the output rod (16), and a fixing bolt (22) is inserted in each inserting hole.

8. A structurally improved multistage hydraulic ram as claimed in claim 7, characterised in that a connecting block (21) is fixedly connected to one side of said mounting cylinder (20).