CN218542789U

CN218542789U - Hydraulic cylinder capable of being cooled circularly

Info

Publication number: CN218542789U
Application number: CN202222497300.8U
Authority: CN
Inventors: 周秀明
Original assignee: Yancheng Zhensheng Hydraulic Machinery Co ltd
Current assignee: Yancheng Zhensheng Hydraulic Machinery Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-02-28
Anticipated expiration: 2032-09-21

Abstract

The utility model relates to a hydraulic cylinder field specifically discloses a hydraulic cylinder of circulative cooling, including rear end housing, front end housing and cylinder, the both ends at the cylinder are installed respectively to rear end housing and front end housing, have seted up the spacing groove on the inner wall of cylinder, and the rubber sack is installed to the interior bottom of spacing groove, and the outlet duct is installed to the outer wall bottom of cylinder, and the one end of outlet duct runs through the cylinder to with the inside intercommunication of rubber sack, the internally mounted of cylinder has the spacing collar, spacing collar slidable mounting is at the spacing inslot, and the bottom at the spacing collar is installed on the top of rubber sack. The utility model discloses in when the piston removes alright extrude the top of rubber bag, make the rubber bag return to the interior bottom direction of cylinder and contract, and the inside air that is located the rubber bag passes through the extrusion of piston alright discharge to the external world through the outlet duct.

Description

Hydraulic cylinder capable of being cooled circularly

Technical Field

The utility model relates to a hydraulic cylinder technical field especially relates to a circulative cooling's hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit 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. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The buffer device and the exhaust device are determined according to specific application occasions, and other devices are necessary.

Its inside piston of pneumatic cylinder commonly used and piston rod lead to the inside condition that can appear generating heat of pneumatic cylinder because reciprocating motion is done for a long time, and can influence the inside sealed effect of hydraulic cylinder, and the pneumatic cylinder commonly used can't cool off its inside when using, makes the inside heat of pneumatic cylinder give off to the external world, leads to the condition that the damage appears because its inside high temperature.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hydraulic oil cylinder capable of cooling circularly.

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

the utility model provides a hydraulic cylinder of circulative cooling, includes rear end housing, front end housing and cylinder, the both ends at the cylinder are installed respectively to rear end housing and front end housing, have seted up the spacing groove on the inner wall of cylinder, and the rubber bag is installed to the inner bottom of spacing groove, and the outlet duct is installed to the outer wall bottom of cylinder, and the cylinder is run through to the one end of outlet duct to with the inside intercommunication of rubber bag, the internally mounted of cylinder has the spacing collar, and spacing collar slidable mounting is in the spacing groove, and the bottom at the spacing collar is installed on the top of rubber bag.

Preferably, a piston is arranged in the cylinder barrel in a sliding mode, the limiting ring is arranged at the bottom of the outer wall of the piston, a piston rod is arranged at the top of the piston, and one end, far away from the piston, of the piston rod penetrates through the cylinder barrel and the front end cover.

Preferably, the top of the front end cover is provided with a fixing sleeve, the fixing sleeve is slidably mounted on the piston rod, and the outer wall of the top end of the piston rod is provided with a connecting hole.

Preferably, an annular mounting groove is formed in the outer wall of the limiting ring, a sealing ring is mounted on the inner wall of the mounting groove, and the outer wall of the sealing ring is abutted to the inner wall of the limiting groove.

Preferably, the side of rear end housing and front end housing all seted up the mounting hole near the position of corner, install the bracing piece between rear end housing and the front end housing, the both ends outer wall of bracing piece all is equipped with the screw thread.

Preferably, two ends of the supporting rod are respectively and slidably mounted in mounting holes in the rear end cover and the front end cover, and two ends of the supporting rod are respectively provided with an internal thread block through threads.

Preferably, the air outlet pipe is provided with an installation block, and the installation block is installed on the outer wall of the cylinder barrel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in when the piston removes alright extrude the top of rubber bag, make the rubber bag return to the interior bottom direction of cylinder and contract, and the inside air that is located the rubber bag passes through the extrusion of piston alright discharge to the external world through the outlet duct. When the piston moves towards the front end cover again, the piston can pull the rubber bag, and the outside air can enter the rubber bag along with the increase of the space inside the rubber bag. The staff also can be connected the outlet duct with miniature air pump, aerifys to the inside of rubber bag through miniature air pump, and the air that fills alright absorb and discharge the heat that is located the inside hydraulic oil of cylinder and gives off, and the rubber bag also can play better cushioning effect to the removal of piston.

2. The utility model discloses well hydraulic oil when promoting the piston and removing, also can promote the rubber bag and extrude to the inner wall direction of spacing groove, make the outer wall of rubber bag all the time with the inner wall butt of spacing groove, prevent that the rubber bag from appearing warping to the direction of keeping away from the spacing inslot wall, make the piston when removing, the rubber bag slides along the inner wall of spacing groove all the time.

Drawings

Fig. 1 is a perspective view of a hydraulic cylinder capable of cooling circularly provided by the present invention;

fig. 2 is a sectional view of a cylinder barrel of a hydraulic cylinder capable of cooling circularly according to the present invention;

fig. 3 is a schematic diagram of a rubber bladder mounting structure of a hydraulic cylinder capable of cooling circularly according to the present invention;

fig. 4 is a schematic view of a piston mounting structure of a hydraulic cylinder capable of cooling circularly according to the present invention.

In the figure: 1. a rear end cap; 2. a front end cover; 3. a support bar; 4. an internal thread block; 5. fixing a sleeve; 6. a cylinder barrel; 7. a piston rod; 8. a thread; 9. an air outlet pipe; 10. mounting blocks; 11. a limiting groove; 12. a piston; 13. a rubber bladder; 14. a limiting ring; 15. mounting grooves; 16. and (5) sealing rings.

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.

Referring to fig. 1-4, a hydraulic cylinder capable of cooling circularly comprises a rear end cover 1, a front end cover 2 and a cylinder barrel 6, wherein the rear end cover 1 and the front end cover 2 are respectively installed at two ends of the cylinder barrel 6, a limiting groove 11 is formed in the inner wall of the cylinder barrel 6, a rubber bag 13 is installed at the inner bottom of the limiting groove 11, an air outlet pipe 9 is installed at the bottom of the outer wall of the cylinder barrel 6, one end of the air outlet pipe 9 penetrates through the cylinder barrel 6 and is communicated with the inside of the rubber bag 13, a limiting ring 14 is installed inside the cylinder barrel 6, the limiting ring 14 is slidably installed in the limiting groove 11, and the top end of the rubber bag 13 is installed at the bottom of the limiting ring 14.

As the utility model discloses a technical optimization scheme, slidable mounting has piston 12 in the cylinder 6, and spacing collar 14 is installed in the outer wall bottom of piston 12, and piston rod 7 is installed at piston 12's top, and piston rod 7 keeps away from the one end of piston 12 and runs through cylinder 6 and front end housing 2, and spacing collar 14 can seal spacing groove 11.

As a technical optimization scheme of the utility model, fixed cover 5 is installed at the top of front end housing 2, and fixed cover 5 slidable mounting has seted up the connecting hole on piston rod 7's top outer wall, and fixed cover 5 can play better stabilizing effect to piston rod 7.

As a technical optimization scheme of the utility model, seted up annular mounting groove 15 on spacing collar 14's the outer wall, installed sealing washer 16 on mounting groove 15's the inner wall, sealing washer 16's outer wall and spacing groove 11's inner wall butt, sealing washer 16 can seal the gap between spacing collar 14 and the 11 inner walls of spacing groove.

As the utility model discloses a technical optimization scheme, the mounting hole has all been seted up to the position that the side of rear end housing 1 and front end housing 2 is close to the corner, installs bracing piece 3 between rear end housing 1 and the front end housing 2, and the both ends outer wall of bracing piece 3 all is equipped with screw thread 8, and cylinder 6 is located between four bracing pieces 3, and bracing piece 3 can play better protecting effect to cylinder 6.

As a technical optimization scheme of the utility model, the both ends of bracing piece 3 are in the mounting hole of slidable mounting on rear end housing 1 and front end housing 2 respectively, and interior thread piece 4 is all installed through screw thread 8 at the both ends of bracing piece 3, and bracing piece 3 supports rear end housing 1 and front end housing 2, makes rear end housing 1 and front end housing 2 more stable when using.

As a technical optimization scheme, install installation piece 10 on outlet duct 9, installation piece 10 is installed on the outer wall of cylinder 6, and installation piece 10 can carry out the rigidity to outlet duct 9, makes the fixed effect of outlet duct 9 better.

The utility model discloses when using, the staff installs the bottom of rubber bag 13 in the interior bottom of cylinder 6, and the bottom at spacing collar 14 is installed on the top of rubber bag 13, the staff can be to the inside injected hydraulic oil of cylinder 6 when using, rubber bag 13 is located around the hydraulic oil, hydraulic oil is when promoting piston 12 and remove, also can promote rubber bag 13 and extrude to the inner wall direction of spacing groove 11, make the outer wall of rubber bag 13 all the time with the inner wall butt of spacing groove 11, prevent that rubber bag 13 from appearing warping to the direction of keeping away from 11 inner walls of spacing groove.

Can drive piston rod 7 when piston 12 removes and remove, fixed cover 5 and piston 12 mutually support when using, can play better stabilizing effect to piston rod 7 when piston rod 7 removes, prevent that the condition that the piston rod 7 from appearing rocking when removing. And rear end housing 1 and front end housing 2 are installed respectively to the both ends of cylinder 6, support each other and fix through bracing piece 3 for rear end housing 1 and front end housing 2, make the installation of rear end housing 1, front end housing 2 and cylinder 6 more stable, and bracing piece 3 can play better safeguard effect to cylinder 6 simultaneously, prevents that external article from causing the collision to cylinder 6. When the cooling device is used, air in the rubber bag 13 can absorb heat in hydraulic oil through the rubber bag 13, so that the hydraulic oil is cooled.

When the piston 12 moves towards the inner bottom of the cylinder 6, the piston 12 can drive the limiting ring 14 to move, the outer wall of the limiting ring 14 is provided with the sealing ring 16, the outer wall of the sealing ring 16 is abutted against the inner wall of the limiting groove 11, and a gap between the limiting ring 14 and the inner wall of the limiting groove 11 can be sealed well when the limiting ring 14 moves. When the piston 12 moves, the top end of the rubber bag 13 can be squeezed, so that the rubber bag 13 retracts towards the inner bottom of the cylinder 6, and air in the rubber bag 13 can be discharged to the outside through the air outlet pipe 9 by the squeezing of the piston 12. When the piston 12 moves toward the front end cap 2 again, the piston 12 pulls the rubber bladder 13, and the external air is introduced into the rubber bladder 13 as the space inside the rubber bladder 13 increases. When hydraulic oil extrudees rubber bag 13, when leading to the unable air storage of rubber bag 13, the staff can be connected outlet duct 9 and miniature air pump, aerifys to rubber bag 13's inside through miniature air pump, and the air that fills alright absorb and discharge the heat that is located the inside hydraulic oil of cylinder 6 and gives off.

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. The utility model provides a but circulative cooling's hydraulic cylinder, includes rear end housing (1), front end housing (2) and cylinder (6), a serial communication port, rear end housing (1) and front end housing (2) are installed respectively at the both ends of cylinder (6), spacing groove (11) have been seted up on the inner wall of cylinder (6), rubber bag (13) are installed to the interior bottom of spacing groove (11), outlet duct (9) are installed to the outer wall bottom of cylinder (6), the one end of outlet duct (9) runs through cylinder (6), and with the inside intercommunication of rubber bag (13), the internally mounted of cylinder (6) has spacing collar (14), spacing collar (14) slidable mounting is in spacing groove (11), the bottom at spacing collar (14) is installed on the top of rubber bag (13).

2. A hydraulic cylinder capable of cooling circularly according to claim 1, characterized in that a piston (12) is slidably mounted in the cylinder (6), a limit ring (14) is mounted at the bottom of the outer wall of the piston (12), a piston rod (7) is mounted at the top of the piston (12), and one end of the piston rod (7) far away from the piston (12) penetrates through the cylinder (6) and the front end cover (2).

3. A hydraulic cylinder capable of cooling circularly as claimed in claim 2, characterized in that the top of the front end cover (2) is provided with a fixing sleeve (5), the fixing sleeve (5) is slidably mounted on the piston rod (7), and the outer wall of the top end of the piston rod (7) is provided with a connecting hole.

4. A hydraulic oil cylinder capable of realizing circulation cooling according to claim 1, characterized in that an annular mounting groove (15) is formed in the outer wall of the limiting ring (14), a sealing ring (16) is mounted on the inner wall of the mounting groove (15), and the outer wall of the sealing ring (16) is abutted against the inner wall of the limiting groove (11).

5. A hydraulic cylinder capable of cooling circularly as claimed in claim 1, characterized in that the side faces of the rear end cover (1) and the front end cover (2) are provided with mounting holes near the corners, a support rod (3) is mounted between the rear end cover (1) and the front end cover (2), and the outer walls of the two ends of the support rod (3) are provided with threads (8).

6. A hydraulic cylinder capable of cooling circularly according to claim 5, characterized in that the two ends of the support rod (3) are respectively installed in the installation holes of the rear end cover (1) and the front end cover (2) in a sliding way, and the two ends of the support rod (3) are both provided with the internal thread blocks (4) through the threads (8).

7. A hydraulic ram capable of being cooled cyclically according to claim 1 characterised in that the outlet tube (9) is fitted with a mounting block (10), the mounting block (10) being fitted to the outer wall of the cylinder (6).