CN210531288U

CN210531288U - High-temperature-resistant differential hydraulic cylinder

Info

Publication number: CN210531288U
Application number: CN201921361932.3U
Authority: CN
Inventors: 李正凤
Original assignee: Yangzhou Yongfa Pneumatic Hydraulic Equipment Co Ltd
Current assignee: Yangzhou Yongfa Pneumatic Hydraulic Equipment Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-15
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a high temperature resistant differential pneumatic cylinder, including cylinder wall, left cylinder cap, piston rod, piston main part and right side apron, first connecting block has been cup jointed on the surface of cylinder wall, and one side that the cylinder wall was kept away from to first connecting block is fixed with the conducting strip, one side that first connecting block was kept away from to the conducting strip is fixed with the radiator-grid, the left side fixedly connected with left cylinder cap of cylinder wall, and the central point department of putting of left cylinder cap runs through there is the piston rod, one side that left cylinder cap is close to the piston rod is fixed with sealed piece, the right side of piston rod is fixed with the piston main part, and the inside of piston main part has seted up the oilhole, the inside of crossing the oilhole has seted up spacing spout. The utility model discloses a be provided with first connecting block, conducting strip and radiator-grid, can effectively slow down the jar wall and heat up at the during operation too fast, can prolong the working life of jar wall, and the device is through being provided with first stopper, first dog and spacing spout, can effectively increase the protrusion speed of piston rod.

Description

High-temperature-resistant differential hydraulic cylinder

Technical Field

The utility model relates to a pneumatic cylinder technical field specifically is a high temperature resistant differential pneumatic cylinder.

Background

With the continuous development of society and the continuous progress of science, a hydraulic cylinder is one of hydraulic actuating elements which convert hydraulic energy into mechanical energy and do linear reciprocating motion, and a differential hydraulic cylinder is a hydraulic cylinder which utilizes the effective area difference at two ends of the hydraulic cylinder to carry out transmission.

The hydraulic oil pressure in the hydraulic oil cylinder can be increased when the existing partial differential hydraulic cylinder is used, a large amount of heat can be generated due to friction between the hydraulic oil and the cylinder wall in a high-pressure state, the existing partial differential hydraulic cylinder has poor heat dissipation performance and can work in a high-heat state, the service life of the differential hydraulic cylinder can be influenced, and the existing method for realizing the differential action of the partial differential hydraulic cylinder is to extrude the hydraulic oil in a rod cavity into a rodless cavity through an external pipeline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistant differential hydraulic cylinder to the current partial differential hydraulic cylinder heat dispersion who proposes in solving above-mentioned background art is not good, can not be high temperature resistant, and current partial differential hydraulic cylinder stretching speed is too slow, problem that efficiency is not high.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature-resistant differential hydraulic cylinder comprises a cylinder wall, a left cylinder cover, a piston rod, a piston main body and a right cover plate, wherein a first connecting block is sleeved on the surface of the cylinder wall, a heat conducting fin is fixed on one side, far away from the cylinder wall, of the first connecting block, a radiating net is fixed on one side, far away from the first connecting block, of the heat conducting fin, the left side of the cylinder wall is fixedly connected with the left cylinder cover, the piston rod penetrates through the central position of the left cylinder cover, a sealing block is fixed on one side, close to the piston rod, of the left cylinder cover, the piston main body is fixed on the right side of the piston rod, an oil through hole is formed in the piston main body, a limiting sliding groove is formed in the oil through hole, a limiting sliding block is abutted against the inside of the limiting sliding groove, a second spring is connected to the right side of the limiting sliding block, the side, far away from the, the utility model discloses a damping device, including cylinder wall, jar wall, first dog, piston rod, jar wall, first link, first stopper, piston rod, jar wall, first link, first push rod, first spring, the left side of first push rod is connected with the snubber block, the left side of piston rod is fixed with the fixed block, and the inside of fixed block is inserted and is equipped with the go-between, the jar wall is close to left bottom and is connected with the oil inlet, the bottom that the jar wall is close to the right side is connected with the oil return opening, the right side fixedly connected with right side apron of jar wall, and the left side inner wall of right side apron is fixed with.

Preferably, a through hole is formed in the center of the surface of the left cylinder cover, and the inner shape and size of the through hole are the same as the surface shape and size of the piston rod.

Preferably, the left side surface of the fixing block is provided with a through hole, the inner wall of the through hole and the right side surface of the connecting ring are both provided with threads, and the connecting ring and the fixing block can form a thread type structure.

Preferably, one end of the first spring is connected with a first push rod, the other end of the first spring is connected with the inner wall of the first connecting sleeve, and the first connecting sleeve, the first spring and the first push rod form an elastic structure.

Preferably, the size of the internal shape of the limiting sliding groove is the same as the size of the surface shape of the limiting sliding block, the limiting sliding block is inserted into the limiting sliding groove, and the limiting sliding block and the limiting sliding groove form a sliding type structure.

Preferably, the first limit block is annular in shape and structure, the first limit block is fixed on the inner wall of the oil passing hole, and the diameter of the inner side of the first limit block is the same as the diameter of the surface of the first stop block.

Compared with the prior art, the beneficial effects of the utility model are that: this high temperature resistant differential pneumatic cylinder is through being provided with first connecting block, conducting strip and radiator-grid, can effectively slow down the jar wall and heat up too fast at the during operation, can prolong the working life of jar wall, and the device is through being provided with first stopper, first dog and spacing spout, can effectively increase the protrusion speed of piston rod.

(1) The device is through being provided with first connecting block, conducting strip and radiator-grid, the inside hydraulic oil of jar wall can produce the heat in the work under high-pressure state, and it has the conduction oil to fill in the gap between jar wall and the first connecting block, can effectively give first connecting block with the heat on jar wall surface via the conduction oil conduction, thereby the first connecting block of rethread gives the conducting strip with heat transfer, the rethread conducting strip gives honeycomb radiator-grid with heat transfer, can effectively increase the area of contact of heat and air through the radiator-grid, thereby can increase the device's radiating efficiency, the practicality of the device is increased.

(2) The device is through being provided with first stopper, first dog and spacing spout, because first dog is being close to first stopper left side installation, if the hydraulic pressure of no pole intracavity portion gets into inside the oilhole, then can make first dog remove to the left side, thereby enable the unable entering of the hydraulic oil of no pole intracavity portion to have the pole intracavity portion, and when the hydraulic oil that has the pole chamber got into inside the oilhole, can directly open first dog, make the hydraulic oil that has the pole chamber, directly get into no pole chamber via first dog, can increase the protrusion speed of piston rod, the practicality of the device has been increased.

(3) The device can make go-between and fixed block be connected through being provided with the fixed block, the helicitic texture through fixed block and go-between, also can dismantle the go-between with rotatory go-between, changes the flange, perhaps the threaded rod, makes it can change different connection fittings to different work needs, increases the device's practicality.

Drawings

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.

In the figure: 1. a cylinder wall; 2. a left cylinder cover; 3. a sealing block; 4. a piston rod; 5. a fixed block; 6. a connecting ring; 7. an oil inlet; 8. a piston body; 9. an oil return port; 10. a right cover plate; 11. a first connecting sleeve; 12. a first spring; 13. a first push rod; 14. a damper block; 15. a first connection block; 16. a heat conductive sheet; 17. a heat-dissipating web; 18. a limiting chute; 19. a limiting slide block; 20. a second spring; 21. a connecting frame; 22. a first stopper; 23. a first stopper; 24. and an oil passing hole.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a high temperature resistant differential pneumatic cylinder, includes cylinder wall 1, left cylinder cap 2, piston rod 4, piston main part 8 and right shroud 10, and the surface of cylinder wall 1 cup joints first connecting block 15, and one side that first connecting block 15 kept away from cylinder wall 1 is fixed with conducting strip 16.

A radiator 17 is fixed on one side of the heat conducting fin 16 far away from the first connecting block 15, a left cylinder cover 2 is fixedly connected on the left side of the cylinder wall 1, a through hole is formed in the surface center position of the left cylinder cover 2, the inner shape and size of the through hole are the same as the surface shape and size of the piston rod 4, the same shape and size can increase the sealing performance between the piston rod 4 and the left cylinder cover 2, the piston rod 4 penetrates through the center position of the left cylinder cover 2, a sealing block 3 is fixed on one side of the left cylinder cover 2 close to the piston rod 4, a piston main body 8 is fixed on the right side of the piston rod 4, an oil through hole 24 is formed in the piston main body 8, a limiting sliding chute 18 is formed in the oil through hole 24, the inner shape and size of the limiting sliding chute 18 is the same as the surface shape and size of the limiting sliding block 19, the limiting sliding block 19 is inserted in the limiting, the first stop block 23 can block the first limit block 22 by forming a sliding structure, hydraulic oil in the rodless cavity is prevented from flowing back to the rod cavity, and the limit slide block 19 is abutted to the inside of the limit slide groove 18.

The right side of limiting slide block 19 is connected with second spring 20, one side that limiting slide block 19 kept away from oil hole 24 is connected with link 21, and link 21 keeps away from limiting slide block 19's one end and is connected with first dog 23, the top and the bottom of first dog 23 all butt have first stopper 22, first stopper 22's shape structure is the annular, and first stopper 22 fixes the inner wall at oil hole 24, the inside diameter size of first stopper 22 is the same with the surface diameter size of first dog 23, the same diameter size can increase the leakproofness between first stopper 22 and the first dog 23.

A fixed block 5 is fixed on the left side of the piston rod 4, a through hole is formed in the left side surface of the fixed block 5, threads are arranged on the inner wall of the through hole and the right side surface of the connecting ring 6, the connecting ring 6 and the fixed block 5 can form a thread type structure, different connecting fittings can be conveniently replaced by the device by forming the thread type structure, the connecting ring 6 is inserted in the fixed block 5, an oil inlet 7 is connected to the bottom end of the cylinder wall 1 close to the left side, an oil return opening 9 is connected to the bottom end of the cylinder wall 1 close to the right side, a right cover plate 10 is fixedly connected to the right side of the cylinder wall 1, a first connecting sleeve 11 is fixed on the left side inner wall of the right cover plate 10, a first push rod 13 is inserted in the first connecting sleeve 11, a first spring 12 is connected to the right side of the first push rod 13, one end of the first spring 12 is connected to a, elastic construction is constituteed to first connecting sleeve 11, first spring 12 and first push rod 13, can effectively slow down piston main part 8 when the shrink through constituteing elastic construction, to the pressure that right side apron 10 caused, prevents that piston main part 8 and right side apron 10 direct contact from causing the damage to right side apron 10, and the left side of first push rod 13 is connected with snubber block 14.

The working principle is as follows: when the device is used, the device is firstly installed to a specified working position, then the oil inlet 7 and the oil return port 9 are connected with a hydraulic oil pipe, the hydraulic oil is filled in the hydraulic oil pipe, in the process of filling the hydraulic oil, the pressure of the hydraulic oil can be gradually increased, a large amount of heat can be generated by friction between the hydraulic oil in a high-pressure state and the cylinder wall 1, the heat on the surface of the cylinder wall 1 can be effectively conducted to the first connecting block 15 through the heat conducting oil filled in the gap between the cylinder wall 1 and the first connecting block 15, so that the heat is transferred to the heat conducting fins 16 through the first connecting block 15, the heat is transferred to the honeycomb-shaped radiating nets 17 through the heat conducting fins 16, because the radiating nets 17 are honeycomb-shaped, the contact area between the heat and air can be effectively increased, the heat can be taken away, the temperature of the cylinder wall 1 can not rise too fast, the high temperature resistance of the cylinder wall 1 can be further increased, meanwhile, the hydraulic oil in the rod cavity on the left side of, make the hydraulic oil that has the pole intracavity portion get into the rodless chamber on piston main part 8 right side, simultaneously, have the pole intracavity portion hydraulic oil get into rodless intracavity portion back, can block up first stopper 22 through the spacing spout 18 of the spring action of second spring 20, prevent rodless intracavity portion lubricating oil backward flow, can increase the device stretch out the pole speed, increase the device's work efficiency.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high temperature resistant differential pneumatic cylinder, includes jar wall (1), left cylinder cap (2), piston rod (4), piston main part (8) and right side apron (10), its characterized in that: the cylinder is characterized in that a first connecting block (15) is sleeved on the surface of the cylinder wall (1), a heat conducting sheet (16) is fixed on one side, far away from the cylinder wall (1), of the first connecting block (15), a heat radiating net (17) is fixed on one side, far away from the first connecting block (15), of the heat conducting sheet (16), a left cylinder cover (2) is fixedly connected to the left side of the cylinder wall (1), a piston rod (4) penetrates through the center position of the left cylinder cover (2), a sealing block (3) is fixed on one side, close to the piston rod (4), of the left cylinder cover (2), a piston main body (8) is fixed to the right side of the piston rod (4), an oil passing hole (24) is formed in the piston main body (8), a limiting sliding groove (18) is formed in the oil passing hole (24), a limiting sliding block (19) is abutted to the inside of the limiting sliding block (18), and a second spring (20) is connected to, one side, far away from the oil passing hole (24), of the limiting slide block (19) is connected with a connecting frame (21), one end, far away from the limiting slide block (19), of the connecting frame (21) is connected with a first stop block (23), the top end and the bottom end of the first stop block (23) are abutted with a first limiting block (22), the left side of the piston rod (4) is fixed with a fixing block (5), a connecting ring (6) is inserted into the fixing block (5), the bottom end, close to the left side, of the cylinder wall (1) is connected with an oil inlet (7), the bottom end, close to the right side, of the cylinder wall (1) is connected with an oil return opening (9), the right side of the cylinder wall (1) is fixedly connected with a right cover plate (10), a first connecting sleeve (11) is fixed on the inner wall of the left side of the right cover plate (10), a first push rod (13) is inserted into the first connecting sleeve (11, the left side of the first push rod (13) is connected with a damping block (14).

2. A high temperature resistant differential hydraulic cylinder as defined in claim 1, wherein: the center of the surface of the left cylinder cover (2) is provided with a through hole, and the inner shape and size of the through hole are the same as the surface shape and size of the piston rod (4).

3. A high temperature resistant differential hydraulic cylinder as defined in claim 1, wherein: the left side surface of fixed block (5) has seted up the through-hole, and the inner wall of through-hole and the right side surface of go-between (6) all are provided with the screw thread, and go-between (6) and fixed block (5) can constitute screw thread formula structure.

4. A high temperature resistant differential hydraulic cylinder as defined in claim 1, wherein: one end of the first spring (12) is connected with a first push rod (13), the other end of the first spring (12) is connected with the inner wall of the first connecting sleeve (11), and the elastic structure is formed by the first connecting sleeve (11), the first spring (12) and the first push rod (13).

5. A high temperature resistant differential hydraulic cylinder as defined in claim 1, wherein: the size of the internal shape of the limiting sliding groove (18) is the same as the size of the surface shape of the limiting sliding block (19), the limiting sliding block (19) is inserted into the limiting sliding groove (18), and the limiting sliding block (19) and the limiting sliding groove (18) form a sliding type structure.

6. A high temperature resistant differential hydraulic cylinder as defined in claim 1, wherein: the shape structure of the first limiting block (22) is annular, the first limiting block (22) is fixed on the inner wall of the oil passing hole (24), and the diameter of the inner side of the first limiting block (22) is the same as the diameter of the surface of the first stop block (23).