CN212130944U

CN212130944U - Hydraulic cylinder with waterproof effect

Info

Publication number: CN212130944U
Application number: CN202020377997.3U
Authority: CN
Inventors: 辛元洪
Original assignee: Xuzhou China Intellectual Property Service Co ltd
Current assignee: Dip Dry Ice Production Dalian Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-12-11
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a pneumatic cylinder with water-proof effects, including cylinder bottom, cylinder bottom bush ring, cylinder, hydraulic stem, piston, uide bushing, end cover, earring and earring bush ring, cylinder bottom one end fixedly connected with cylinder bottom, cylinder bottom one side just passes oil pipe of cylinder bottom shell fixedly connected with, sliding connection has a hydraulic stem in the cylinder, the hydraulic stem is close to the one end fixedly connected with piston of cylinder bottom, first sealing washer of piston and hydraulic stem junction fixedly connected with, second sealing washer and retaining ring of piston lateral wall difference fixedly connected with in both ends, the piston outside just is located a supporting ring of fixedly connected with between second sealing washer and the retaining ring, the utility model discloses the beneficial effect who reaches is: through the setting of multiple sealing washer, improved the sealed effect of pneumatic cylinder greatly, prevented the condition of intaking among the operation process, strengthened the dustproof effect of pneumatic cylinder simultaneously, improved the cleanliness and the life of hydraulic stem.

Description

Hydraulic cylinder with waterproof effect

Technical Field

The utility model relates to a pneumatic cylinder especially relates to a pneumatic cylinder with water-proof effects, belongs to pneumatic cylinder protection technical field.

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 damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary.

However, the hydraulic cylinder is generally operated outdoors, the operation environment is complex, water enters the cylinder frequently due to poor sealing performance, the normal use of the hydraulic cylinder is affected, meanwhile, dust easily enters the hydraulic cylinder in the long-term use process, and the service life of the hydraulic cylinder is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hydraulic cylinder with a waterproof effect.

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

the hydraulic cylinder with the waterproof effect comprises a cylinder bottom, a cylinder bottom bushing ring, a cylinder barrel, a hydraulic rod, a piston, a guide sleeve, an end cover, an ear ring and an ear ring bushing ring, wherein one end of the cylinder barrel is fixedly connected with the cylinder bottom, one side of the cylinder bottom penetrates through a cylinder bottom shell and is fixedly connected with an oil pipe, the cylinder barrel is internally and slidably connected with the hydraulic rod, one end of the hydraulic rod, which is close to the cylinder bottom, is fixedly connected with the piston, a first sealing ring is fixedly connected at the joint of the piston and the hydraulic rod, two ends of the outer side wall of the piston are respectively and fixedly connected with a second sealing ring and a retainer ring, a support ring is fixedly connected outside the piston and positioned between the second sealing ring and the retainer ring, the second sealing ring is fixedly connected on the outer side wall of the piston and is slidably connected with the inner side, the hydraulic cylinder is characterized in that a fourth sealing ring is fixedly connected between the outer side wall of the guide sleeve and the inner side wall of the cylinder barrel, the hydraulic rod penetrates through the guide sleeve and is connected with the guide sleeve in a sliding mode, a third sealing ring is fixedly connected to the inner side wall of the guide sleeve and is connected with the outer side wall of the hydraulic rod in a sliding mode, an end cover is installed on the outer side of one end, far away from the cylinder bottom, of the cylinder barrel, the end cover is fixedly connected onto the cylinder barrel through fixing bolts at two ends, a dustproof ring is fixedly connected into the end cover, and the dustproof ring is.

Preferably, a cylinder bottom lining ring is fixedly connected to one end outside the cylinder bottom.

Preferably, one end of the hydraulic rod, which is far away from the cylinder bottom, is fixedly connected with an ear ring, and one end of the ear ring, which is far away from the hydraulic rod, is fixedly connected with an ear ring bushing ring.

Preferably, one end of the hydraulic rod, which is close to the cylinder bottom, is fixedly connected with a baffle ring, and one side of the baffle ring, which is close to the cylinder bottom, is fixedly connected with a buffer ring.

Preferably, an oil pipe is installed on the cylinder barrel and at one end of the guide sleeve, and the oil pipe penetrates through the side wall of the cylinder barrel.

Preferably, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are all made of rubber materials.

The utility model provides a pair of pneumatic cylinder with water-proof effects, beneficial effect lies in: through the setting of multiple sealing washer, improved the sealed effect of pneumatic cylinder greatly, prevented the condition of intaking among the operation process, strengthened the dustproof effect of pneumatic cylinder simultaneously, improved the cleanliness and the life of hydraulic stem.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is a schematic sectional view of the cylinder bottom of the present invention;

fig. 3 is the schematic view of the sectional structure of the guide sleeve of the present invention.

In the figure: 1. a cylinder bottom; 2. a cylinder bottom liner ring; 3. a cylinder barrel; 4. a hydraulic lever; 5. a baffle ring; 6. a buffer ring; 7. an oil pipe; 8. a piston; 9. a first seal ring; 10. a second seal ring; 11. a retainer ring; 12. a supporting ring; 13. a guide sleeve; 14. a third seal ring; 15. a fourth seal ring; 16. an end cap; 17. fixing the bolt; 18. a dust ring; 19. an ear ring; 20. the earrings are lined with 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. 1-3, a hydraulic cylinder with waterproof effect comprises a cylinder bottom 1, a cylinder bottom bushing ring 2, a cylinder barrel 3, a hydraulic rod 4, a piston 8, a guide sleeve 13, an end cover 16, an ear ring 19 and an ear ring bushing ring 20, wherein one end of the cylinder barrel 3 is fixedly connected with the cylinder bottom 1, one side of the cylinder bottom 1 penetrates through the shell of the cylinder bottom 1 and is fixedly connected with an oil pipe 7, the cylinder barrel 3 is slidably connected with the hydraulic rod 4, one end of the hydraulic rod 4 close to the cylinder bottom 1 is fixedly connected with the piston 8, the joint of the piston 8 and the hydraulic rod 4 is fixedly connected with a first sealing ring 9, two ends of the outer side wall of the piston 8 are respectively and fixedly connected with a second sealing ring 10 and a retainer ring 11, a support ring 12 is fixedly connected between the second sealing ring 10 and the retainer ring 11 and is positioned outside the piston 8, the second sealing ring, cylinder 3 keeps away from a uide bushing 13 of one end inside wall fixedly connected with of cylinder end 1, a fourth sealing washer 15 of fixedly connected with between uide bushing 13 lateral wall and the 3 inside walls of cylinder, hydraulic stem 4 pass uide bushing 13 and with uide bushing 13 sliding connection, a third sealing washer 14 of fixedly connected with on the uide bushing 13 inside wall,

third sealing washer

14 and 4 lateral walls sliding connection of hydraulic stem, cylinder 3 keeps away from 1 one end outside of cylinder end and installs an end cover 16, end cover 16 is through 17 fixed connection at both ends on cylinder 3, a dust ring 18 of fixedly connected with in the end cover 16,

dust ring

18 and 4 sliding connection of hydraulic stem, setting through multiple sealing washer, the sealed effect of pneumatic cylinder has been improved greatly, the condition of intaking in the operation process has been prevented, the dustproof effect of pneumatic cylinder has been strengthened simultaneously.

The end outside the cylinder bottom 1 is fixedly connected with a cylinder bottom bushing ring 2, the end of the hydraulic rod 4 far away from the cylinder bottom 1 is fixedly connected with an ear ring 19, the end of the ear ring 19 far away from the hydraulic rod 4 is fixedly connected with an ear ring bushing ring 20, the hydraulic cylinder is fixedly connected to two mechanical parts through the cylinder bottom bushing ring 2 and the ear ring bushing ring 20, so that the hydraulic cylinder has a telescopic effect, one end of the hydraulic rod 4 close to the cylinder bottom 1 is fixedly connected with a baffle ring 5, one side of the baffle ring 5 close to the cylinder bottom 1 is fixedly connected with a buffer ring 6, the baffle ring 5 and the buffer ring 6 are arranged to effectively prevent the direct impact between the hydraulic rod 4 and the cylinder bottom 1, effectively protect the cylinder bottom 1 and prolong the service life of the hydraulic cylinder, one end of the guide sleeve 13 on the cylinder barrel 3 is provided with an oil pipe 7, the oil pipe 7 penetrates through the side wall of the cylinder barrel 3, and the hydraulic rod 4 slides in the cylinder barrel, the first sealing ring 9, the second sealing ring 10, the third sealing ring 14 and the fourth sealing ring 15 are all made of rubber materials, and the rubber materials have high plasticity and sealing performance, so that the sealing performance in the cylinder is effectively kept.

The working principle is as follows: when the hydraulic cylinder is used, when the hydraulic cylinder needs to be extended, firstly, hydraulic oil enters the cylinder barrel 3 through the oil pipe 7 fixedly connected to one side of the cylinder bottom 1, meanwhile, the first sealing ring 9, the second sealing ring 10, the piston 8 and the cylinder barrel 3 form a sealed space, so that the hydraulic oil pushes the piston 8 fixedly connected to one end of the hydraulic rod 4 to move towards one end of the guide sleeve 13, when the hydraulic cylinder needs to be compressed, the hydraulic oil enters the cylinder barrel 3 through the oil pipe 7 fixedly connected to one side of the guide sleeve 13, so that the hydraulic oil pushes the piston 8 fixedly connected to the hydraulic rod 4 to move towards the cylinder bottom 1 along the cylinder barrel 3, the compression of the hydraulic cylinder is completed, the first sealing ring 9, the second sealing ring 10, the third sealing ring 14 and the fourth sealing ring 15 effectively prevent the hydraulic oil from flowing out of the cylinder barrel 3, through the arrangement of multiple sealing rings, the sealing effect of the hydraulic cylinder is greatly, meanwhile, the dustproof effect of the hydraulic cylinder is enhanced, and the cleanliness and the service life of the hydraulic rod are improved.

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 hydraulic cylinder with the waterproof effect is characterized by comprising a cylinder bottom (1), a cylinder bottom bushing ring (2), a cylinder barrel (3), a hydraulic rod (4), a piston (8), a guide sleeve (13), an end cover (16), an ear ring (19) and an ear ring bushing ring (20), wherein one end of the cylinder barrel (3) is fixedly connected with the cylinder bottom (1), one oil pipe (7) penetrates through the shell of the cylinder bottom (1) and is fixedly connected with one side of the cylinder bottom (1), the hydraulic rod (4) is slidably connected with the cylinder barrel (3), one end, close to the cylinder bottom (1), of the hydraulic rod (4) is fixedly connected with the piston (8), a first sealing ring (9) is fixedly connected with the joint of the piston (8) and the hydraulic rod (4), and a second sealing ring (10) and a check ring (11) are fixedly connected with the two ends of the outer side wall of the piston (8) respectively, the outer side of the piston (8) is fixedly connected with a supporting ring (12) between a second sealing ring (10) and a retainer ring (11), the second sealing ring (10) is fixedly connected with the outer side wall of the piston (8) and is in sliding connection with the inner side wall of the cylinder barrel (3), the inner side wall of one end, away from the cylinder bottom (1), of the cylinder barrel (3) is fixedly connected with a guide sleeve (13), a fourth sealing ring (15) is fixedly connected between the outer side wall of the guide sleeve (13) and the inner side wall of the cylinder barrel (3), the hydraulic rod (4) penetrates through the guide sleeve (13) and is in sliding connection with the guide sleeve (13), a third sealing ring (14) is fixedly connected on the inner side wall of the guide sleeve (13), the third sealing ring (14) is in sliding connection with the outer side wall of the hydraulic rod (4), and an end cover (16) is installed on the outer, the end cover (16) is fixedly connected to the cylinder barrel (3) through fixing bolts (17) at two ends, a dust ring (18) is fixedly connected to the inside of the end cover (16), and the dust ring (18) is in sliding connection with the hydraulic rod (4).

2. Hydraulic cylinder with water-repellent effect according to claim 1, characterized in that a cylinder bottom lining collar (2) is fixedly connected to the outer end of the cylinder bottom (1).

3. Hydraulic cylinder with water-repellent effect according to claim 1, characterized in that an ear (19) is fixedly connected to the end of the hydraulic rod (4) remote from the cylinder bottom (1), and an ear bushing ring (20) is fixedly connected to the end of the ear (19) remote from the hydraulic rod (4).

4. The hydraulic cylinder with the waterproof effect according to claim 1, wherein one end of the hydraulic rod (4) close to the cylinder bottom (1) is fixedly connected with a baffle ring (5), and one side of the baffle ring (5) close to the cylinder bottom (1) is fixedly connected with a buffer ring (6).

5. A water-tight hydraulic cylinder as claimed in claim 1, characterized in that an oil pipe (7) is mounted on the cylinder (3) at one end of the guide sleeve (13), said oil pipe (7) passing through the side wall of the cylinder (3).

6. The hydraulic cylinder with the waterproof effect according to claim 1, wherein the first sealing ring (9), the second sealing ring (10), the third sealing ring (14) and the fourth sealing ring (15) are made of rubber.