CN219081979U

CN219081979U - Hydraulic cylinder with heat-resisting function

Info

Publication number: CN219081979U
Application number: CN202320192602.6U
Authority: CN
Inventors: 唐国红
Original assignee: Changzhou Aosailin Hydraulic And Pneumatic Components Co ltd
Current assignee: Changzhou Aosailin Hydraulic And Pneumatic Components Co ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-05-26
Anticipated expiration: 2033-02-13

Abstract

The utility model discloses a hydraulic cylinder with a heat-resistant function, which relates to the technical field of hydraulic cylinders and comprises a shell; the cooling component is arranged on the outer surface of the shell and used for assisting in cooling; a piston rod disposed inside the housing; the sealing component is arranged on the outer surface of the piston rod and used for assisting in sealing; and the buffer protection unit is arranged at the bottom of the inner wall of the shell and used for assisting in buffering, a water injection cavity is formed in the shell, the cooling assembly comprises a water outlet pipe and a water inlet assembly, the piston rod is arranged in the shell, the bottom surface of the piston rod is fixedly connected with a fixing block, and the bottom surface of the fixing block is provided with a groove. According to the hydraulic cylinder, the spring, the first telescopic rod, the sliding block, the rolling beads, the second telescopic rod and the spring column are matched, so that the piston rod can be buffered in the moving process, and the practicability of the hydraulic cylinder is improved.

Description

Hydraulic cylinder with heat-resisting function

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder with a heat-resistant function.

Background

The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion), and has simple structure and reliable operation. When it is used to realize reciprocating motion, it can eliminate speed reducer, and has no transmission clearance and smooth motion, so that it can be widely used in hydraulic systems of various machines.

In prior art, in the patent document of publication No. CN216009095U, a high temperature resistant pneumatic cylinder is proposed, including cylinder body, piston main part and piston rod, the piston main part sets up in the cylinder body, the one end and the piston main part of piston rod are connected, be provided with two dustproof pipes on the cylinder body, two dustproof pipes all set up to semi-cylindrical, and can dismantle each other and connect, dustproof pipe inboard is provided with two arc and clean subassembly, and the outside rotates and is connected with two drive bolts, the arc sets up the both ends at dustproof pipe, and both sides all are provided with the limiting plate, drive bolt and arc threaded connection, cylinder body one end is provided with fixed cover, be provided with two promotion cover in the fixed cover, the inboard of promoting the cover is provided with a plurality of spout, be provided with in the spout and hold tight piece, be provided with the spacing on the spout inner wall, the centre inboard of fixed cover is connected with baffle and sealed pipe, the outside is provided with oil pipe, the both ends of fixed cover are connected with the direction guide, the outside is provided with the spring.

In order to solve the problem that if the liquid cylinder is fixed by using the hydraulic pressure for a long time in the use process, the hydraulic pressure leakage can be caused, the prior art adopts the mutually matched modes of the holding block, the pushing sleeve and the spring to process, but the problem that the hydraulic cylinder cannot be buffered in the use process and cannot be effectively resistant to high temperature, so that the use is inconvenient can be caused.

Disclosure of Invention

The utility model aims to provide a hydraulic cylinder with a heat-resistant function, so as to solve the problems in the background art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a hydraulic cylinder with heat-resistant function comprises a shell; the cooling component is arranged on the outer surface of the shell and used for assisting in cooling; a piston rod disposed inside the housing; the sealing component is arranged on the outer surface of the piston rod and used for assisting in sealing; and the buffer protection unit is arranged at the bottom of the inner wall of the shell and used for assisting in buffering, the water injection cavity is formed in the shell, the cooling assembly comprises a water outlet pipe and a water inlet assembly, the piston rod is arranged in the shell, the bottom surface of the piston rod is fixedly connected with a fixing block, the bottom surface of the fixing block is provided with a groove, the sealing assembly comprises a first sealing connecting piece, a sealing gasket and a second sealing connecting piece, and the buffer protection unit comprises a buffer assembly and a transmission assembly.

The technical scheme of the utility model is further improved as follows: the water inlet assembly comprises a connecting pipe, one side of the connecting pipe is fixedly connected with the outer surface of the shell, one side of the connecting pipe extends to the inside of the water injection cavity, a valve is detachably connected to the other side of the connecting pipe, and a butt joint pipe is detachably connected to the other side of the valve.

The technical scheme of the utility model is further improved as follows: one end of the water outlet pipe is fixedly connected with the outer surface of the shell, one end of the water outlet pipe extends to the inside of the water injection cavity, and the water outlet pipe is arranged right below the water inlet assembly.

By adopting the technical scheme, the heat dissipation and cooling of the inner wall of the shell can be assisted through the mutual matching of the connecting pipe, the valve, the butt joint pipe and the drain pipe.

The technical scheme of the utility model is further improved as follows: the inner walls of the first sealing connecting piece, the sealing gasket and the second sealing connecting piece are fixedly connected with the outer surface of the piston rod, and the sealing gasket is arranged between the first sealing connecting piece and the sealing gasket.

By adopting the technical scheme, the piston rod can play a role in sealing the hydraulic oil in the shell when moving in the shell through the matching of the first sealing connecting piece, the sealing gasket and the second sealing connecting piece.

The technical scheme of the utility model is further improved as follows: the transmission assembly comprises a sliding block and rolling beads, wherein the outer surface of the sliding block is rotationally connected with the outer surface of the rolling beads, and the outer surface of the rolling beads is slidably connected with the inner wall surface of the shell.

By adopting the technical scheme, the friction force born by the sliding block in the moving process can be reduced through the rolling beads.

The technical scheme of the utility model is further improved as follows: the buffer assembly comprises a spring, a first telescopic rod, a second telescopic rod and a spring column, wherein the upper surface of the spring is movably overlapped with the inner wall of the groove, the bottom surface of the first telescopic rod is fixedly connected with the upper surface of the sliding block, and the upper surface of the first telescopic rod is movably overlapped with the inner wall of the groove.

By adopting the technical scheme, the impact of the piston rod can be assisted to be buffered in an auxiliary way through the matching of the spring and the first telescopic rod.

The technical scheme of the utility model is further improved as follows: the upper surface of the second telescopic rod is fixedly connected with the bottom surface of the sliding block, the upper surface of the spring column is fixedly connected with the bottom surface of the sliding block, and the bottom surfaces of the second telescopic rod and the spring column are movably connected with the bottom surface of the inner wall of the shell.

By adopting the technical scheme, the impact of the piston rod can be further buffered in an auxiliary way through the mutual matching of the second telescopic rod and the spring column.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides a hydraulic cylinder with a heat-resistant function, which adopts the mutual matching of a connecting pipe, a valve, a butt joint pipe and a drain pipe, can assist in radiating and cooling the inner wall of a shell, and prevents the agglomeration of internal hydraulic oil caused by the overhigh internal temperature in the use process of the hydraulic cylinder.

2. The utility model provides a hydraulic cylinder with a heat-resistant function, which adopts the cooperation of a spring, a first telescopic rod, a sliding block, rolling beads, a second telescopic rod and a spring column, and can assist a piston rod to buffer the piston rod in the moving process, so that the practicability of the hydraulic cylinder is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a cooling assembly according to the present utility model;

FIG. 3 is a schematic view of a piston rod according to the present utility model;

FIG. 4 is a schematic view of a seal assembly according to the present utility model;

FIG. 5 is a schematic diagram of a buffer protection unit according to the present utility model.

In the figure: 1. a housing; 2. a cooling assembly; 21. a connecting pipe; 22. a valve; 23. a butt joint pipe; 3. a piston rod; 31. a fixed block; 4. a seal assembly; 41. sealing the first connecting piece; 42. a sealing gasket; 43. sealing the second connecting piece; 5. a buffer protection unit; 51. a spring; 52. a first telescopic rod; 53. a sliding block; 54. rolling the beads; 55. a second telescopic rod; 56. and a spring column.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1 to 4, the present utility model provides a hydraulic cylinder having a heat-resistant function, comprising a housing 1; the cooling component 2 is arranged on the outer surface of the shell 1 and used for assisting in cooling; a piston rod 3 disposed inside the housing 1; a sealing assembly 4 for auxiliary sealing provided on an outer surface of the piston rod 3; the buffer protection unit 5 is arranged at the bottom of the inner wall of the shell 1 and used for assisting in buffering, a water injection cavity is formed in the shell 1, the cooling assembly 2 comprises a water outlet pipe and a water inlet assembly, the piston rod 3 is arranged in the shell 1, the bottom surface of the piston rod 3 is fixedly connected with the fixed block 31, the bottom surface of the fixed block 31 is provided with a groove, the sealing assembly 4 comprises a first sealing connecting piece 41, a sealing gasket 42 and a second sealing connecting piece 43, the buffer protection unit 5 comprises a buffer assembly and a transmission assembly, and the buffer protection unit comprises the shell 1; the cooling component 2 is arranged on the outer surface of the shell 1 and used for assisting in cooling; a piston rod 3 disposed inside the housing 1; a sealing assembly 4 for auxiliary sealing provided on an outer surface of the piston rod 3; and the buffer protection unit 5 is arranged at the bottom of the inner wall of the shell 1 and used for assisting in buffering, the water injection cavity is formed in the shell 1, the cooling assembly 2 comprises a water outlet pipe and a water inlet assembly, the piston rod 3 is arranged in the shell 1, the bottom surface of the piston rod 3 is fixedly connected with the fixing block 31, the bottom surface of the fixing block 31 is provided with a groove, the sealing assembly 4 comprises a first sealing connecting piece 41, a sealing gasket 42 and a second sealing connecting piece 43, and the buffer protection unit 5 comprises a buffer assembly and a transmission assembly.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the inner walls of the first sealing connecting piece 41, the sealing gasket 42 and the second sealing connecting piece 43 are fixedly connected with the outer surface of the piston rod 3, the sealing gasket 42 is arranged between the first sealing connecting piece 41 and the sealing gasket 42, the transmission assembly comprises a sliding block 53 and a rolling bead 54, the outer surface of the sliding block 53 is rotationally connected with the outer surface of the rolling bead 54, the outer surface of the rolling bead 54 is slidingly connected with the inner wall surface of the shell 1, and the sealing connecting piece 41, the sealing gasket 42 and the second sealing connecting piece 43 are matched, so that hydraulic oil in the shell 1 can play a sealing role when the piston rod 3 moves in the shell 1.

Example 3

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the buffer assembly comprises a spring 51, a first telescopic rod 52, a second telescopic rod 55 and a spring column 56, wherein the upper surface of the spring 51 is movably lapped with the inner wall of the groove, the bottom surface of the first telescopic rod 52 is fixedly connected with the upper surface of the sliding block 53, the upper surface of the first telescopic rod 52 is movably lapped with the inner wall of the groove, the upper surface of the second telescopic rod 55 is fixedly connected with the bottom surface of the sliding block 53, the upper surface of the spring column 56 is fixedly connected with the bottom surface of the sliding block 53, the bottom surfaces of the second telescopic rod 55 and the spring column 56 are movably connected with the inner wall bottom surface of the shell 1, the piston rod 3 is used for impacting the spring 51 and the first telescopic rod 52 through the fixed block 31 in the moving compression process, impact force is converted into elastic force to be buffered through elastic deformation of the spring 51, meanwhile, the sliding block 53 is used for compressing the spring column 56 through transmission of part of the force of the sliding block 53, and accordingly, the impact force borne by the spring 51 is further buffered, and in the moving process of the sliding block 53 in the shell 1, the inner wall of the shell 1 can be reduced through rolling beads 54 and hydraulic oil.

The working principle of the hydraulic cylinder with heat resistance will be described in detail.

As shown in fig. 1 to 4, when the hydraulic cylinder with heat-resistant function is used, the piston rod 3 impacts the spring 51 and the telescopic rod 52 through the fixed block 31 in the moving compression process, the impact force is converted into elastic force through the elastic deformation of the spring 51 to buffer, meanwhile, the spring 51 drives part of force through the sliding block 53 to enable the sliding block 53 to compress the spring column 56, and meanwhile, the impact force received by the spring 51 is further buffered, in the moving process of the sliding block 53 in the shell 1, the friction force received by the sliding block 53 and the inner wall of the shell 1 can be reduced through the rolling beads 54 and hydraulic oil, when the internal temperature of the hydraulic cylinder is too high, when the internal temperature of the hydraulic cylinder needs to be reduced, the external water pipe is connected with the butt joint pipe 23, then the valve 22 is opened, so that external cold water is injected into the water injection cavity in the shell 1, and cold water injected into the water injection cavity is separated through the drain pipe, and circulation can be carried out, and thus the cooling efficiency of the cooling assembly 2 is increased.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. A hydraulic cylinder with heat-resistant function, comprising a housing (1);

the cooling assembly (2) is arranged on the outer surface of the shell (1) and used for assisting in cooling;

a piston rod (3) disposed inside the housing (1);

the sealing component (4) is arranged on the outer surface of the piston rod (3) and used for assisting in sealing;

and a buffer protection unit (5) arranged at the bottom of the inner wall of the shell (1) and used for assisting buffer, which is characterized in that: the inside of shell (1) is provided with the water filling cavity, cooling module (2) is including outlet pipe and water inlet subassembly, piston rod (3) set up in the inside of shell (1), the bottom surface fixedly connected with fixed block (31) of piston rod (3), the bottom surface of fixed block (31) is seted up flutedly, sealing module (4) are including sealing connection spare one (41), sealing washer (42) and sealing connection spare two (43), buffering protection unit (5) are including buffer assembly and drive assembly.

2. A hydraulic cylinder with heat-resistant function according to claim 1, characterized in that: the water inlet assembly comprises a connecting pipe (21), one side of the connecting pipe (21) is fixedly connected with the outer surface of the shell (1), one side of the connecting pipe (21) extends to the inside of the water injection cavity, a valve (22) is detachably connected to the other side of the connecting pipe (21), and a butt joint pipe (23) is detachably connected to the other side of the valve (22).

3. A hydraulic cylinder with heat-resistant function according to claim 1, characterized in that: one end of the water outlet pipe is fixedly connected with the outer surface of the shell (1), one end of the water outlet pipe extends to the inside of the water injection cavity, and the water outlet pipe is arranged right below the water inlet component.

4. A hydraulic cylinder with heat-resistant function according to claim 1, characterized in that: the inner walls of the first sealing connecting piece (41), the sealing gasket (42) and the second sealing connecting piece (43) are fixedly connected with the outer surface of the piston rod (3), and the sealing gasket (42) is arranged between the first sealing connecting piece (41) and the sealing gasket (42).

5. A hydraulic cylinder with heat-resistant function according to claim 1, characterized in that: the transmission assembly comprises a sliding block (53) and rolling beads (54), wherein the outer surface of the sliding block (53) is rotationally connected with the outer surface of the rolling beads (54), and the outer surface of the rolling beads (54) is slidingly connected with the inner wall surface of the shell (1).

6. A hydraulic cylinder with heat-resistant function according to claim 1, characterized in that: the buffer assembly comprises a spring (51), a first telescopic rod (52), a second telescopic rod (55) and a spring column (56), wherein the upper surface of the spring (51) is movably overlapped with the inner wall of the groove, the bottom surface of the first telescopic rod (52) is fixedly connected with the upper surface of the sliding block (53), and the upper surface of the first telescopic rod (52) is movably overlapped with the inner wall of the groove.

7. The hydraulic cylinder with heat-resistant function according to claim 6, wherein: the upper surface of telescopic link two (55) and the bottom surface fixed connection of sliding block (53), the upper surface of spring post (56) and the bottom surface fixed connection of sliding block (53), the bottom surface of telescopic link two (55), spring post (56) all with the inner wall bottom surface swing joint of shell (1).