CN216618093U

CN216618093U - Oscillating hydraulic cylinder

Info

Publication number: CN216618093U
Application number: CN202123042120.2U
Authority: CN
Inventors: 贺冠军; 林宏柱
Original assignee: Shaoguan Guanhua Machinery Co ltd
Current assignee: Shaoguan Guanhua Machinery Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-27
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a swing type hydraulic oil cylinder, which belongs to the technical field of oil cylinder design and comprises a cylinder body, wherein a cylinder cover is fixedly arranged at one end of the cylinder body, a sliding sleeve is fixedly arranged between the cylinder cover and the cylinder body, a piston is arranged in the cylinder body, a piston rod is arranged on one side of the piston, a second GRILL ring is arranged at one end of an inner ring of the sliding sleeve, an extension sleeve is arranged on the outer side of the cylinder cover, a second dustproof pad is arranged at one end of the extension sleeve, a sealing pad is arranged between the sliding sleeve and the cylinder cover, and the GRILL ring is formed by combining rubber, a round ring and a polytetrafluoroethylene ring.

Description

Oscillating hydraulic cylinder

Technical Field

The utility model belongs to the technical field of oil cylinder design, and particularly relates to an oscillating hydraulic oil cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating movement, it can remove speed-reducing device, and has no transmission gap, and its movement is stable, and the hydraulic oil cylinder is used as a power device, so that it can be extensively used in hydraulic systems of various machines.

At present, the great leakproofness of current hydraulic cylinder is not good, is difficult to use at high pressure, and after long-time use, the leakproofness can reduce, leads to pressure to reduce, and outside air carries the inside that the dust also can enter into hydraulic cylinder simultaneously to lead to the inside of cylinder body to suffer comparatively serious wearing and tearing, influence its life, we propose a swing hydraulic cylinder for this reason.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a swing type hydraulic oil cylinder, which aims to solve the problems that most of the existing hydraulic oil cylinders in the background art are poor in sealing performance, difficult to use under high pressure, reduced in pressure due to reduced sealing performance after long-time use, and serious abrasion is caused in the cylinder body due to the fact that dust carried by external air possibly enters the interior of the hydraulic oil cylinder, and the service life of the hydraulic oil cylinder is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: including cylinder body, uide bushing and cermet coating, the fixed cylinder cap that is equipped with of one end of cylinder body, the fixed sliding sleeve that is equipped with between cylinder cap and the cylinder body, the both sides of sliding sleeve respectively with cylinder body and cylinder cap fixed connection, the inside of cylinder body is equipped with the piston, piston and cylinder body sliding connection, one side of piston is equipped with the piston rod, the periphery and the sliding sleeve sliding connection of piston rod, the inner circle one end of sliding sleeve is equipped with second glary circle, second glary circle and piston rod sliding connection, the outside of cylinder cap is equipped with the extension sleeve pipe, the one end of extension sleeve pipe is equipped with the dustproof pad of second, the dustproof pad of second and piston rod sliding connection, be equipped with sealed the pad between sliding sleeve and the cylinder cap.

Preferably, the periphery of piston is equipped with the steckel seal, the steckel seal is fixed to be set up in the periphery of piston, the both sides of steckel seal are equipped with Y type circle, the periphery fixed connection of Y type circle and piston, the inside inner wall surface of cylinder body is equipped with the cermet coating, cermet coating surface and steckel seal and Y type circle in close contact with.

Preferably, a connecting plate is arranged between the piston and the piston rod, a buffer pad is arranged at the joint of the connecting plate and the piston rod, the buffer pad is fixedly connected with the connecting plate, the connecting plate and the buffer pad are arranged on the other side of the piston, buffer grooves are formed in one end of the inside of the cylinder body and the inner ring on one side of the inside of the sliding sleeve, and the buffer grooves are the same as the connecting plate in size.

Preferably, one end of the cylinder cover is provided with a guide sleeve, the guide sleeve is fixedly arranged on one side of the cylinder cover in a welding mode, and a connecting block is arranged between the guide sleeve and the extension sleeve.

Preferably, one end of the guide sleeve is connected with the piston rod in a sliding mode, a first GREEN ring is arranged at the joint of the guide sleeve and the piston rod, and a first dustproof pad is arranged on the outer side of the joint of the guide sleeve and the piston rod.

Preferably, a cylinder bottom is arranged at one end of the cylinder body, an exhaust pipe is arranged on one side, close to the cylinder bottom, of the cylinder body, a one-way valve is arranged at the top end of the exhaust pipe, a second oil outlet is arranged on one side, far away from the exhaust pipe, of the cylinder body, the second oil outlet and the exhaust pipe are communicated with the inside of the cylinder body, and a first oil outlet is arranged on one side of the sliding sleeve.

Preferably, a shock pad is arranged on one side of the cylinder bottom and fixedly mounted on one side of the outer portion of the cylinder bottom through a mounting screw.

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

1. through the inside at the sliding sleeve even second glary circle, the glary circle is formed by a rubber and circle type circle and the combination of polytetrafluoroethylene circle, it is low to have frictional force, do not have the crawl, starting force is little, high pressure resistant effect, can reduce the friction between the two when keeping the leakproofness between piston rod and the sliding sleeve, improve the mobility of piston rod, reduce starting force, through the extension sleeve pipe that is equipped with, realize the effect to the direction of piston rod, prevent under the too big effect of pressure, lead to the piston rod to take place the bending, through the dustproof pad of the second that is equipped with, improve extension sheathed tube leakproofness, prevent the entering of dust in the air, cause the harm to the piston rod.

2. Through the steckel seal and the Y type circle that are equipped with, cooperation cermet coating realizes the internal in close contact with of piston and cylinder body, makes it can guarantee the leakproofness of piston both sides for hydraulic cylinder can be applicable to long-time high-pressure work, improves its durability, thereby guarantees that hydraulic cylinder's operation is stable.

Drawings

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

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

FIG. 3 is a schematic side view of the structure of the present invention;

FIG. 4 is a schematic view of the interior of the structure of the present invention;

FIG. 5 is an enlarged view of A in FIG. 4.

In the figure: 1. a cylinder body; 2. a cylinder cover; 3. a cylinder bottom; 4. a sliding sleeve; 5. an exhaust pipe; 6. a one-way valve; 7. a shock pad; 8. a first oil outlet; 9. a second oil outlet; 10. a guide sleeve; 11. a first dust-proof pad; 12. a first Glare circle; 13. connecting blocks; 14. an extension sleeve; 15. a second dust-proof pad; 16. a second Gray circle; 17. a piston; 18. a piston rod; 19. a connecting plate; 20. a cushion pad; 21. a buffer tank; 22. a cermet coating; 23. performing steckel; 24. and a Y-shaped ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a swing hydraulic cylinder, which comprises: including cylinder body 1, uide bushing 10 and cermet coating 22, the fixed cylinder cap 2 that is equipped with of one end of cylinder body 1, it is equipped with sliding sleeve 4 to fix between cylinder cap 2 and the cylinder body 1, sliding sleeve 4's both sides respectively with cylinder body 1 and cylinder cap 2 fixed connection, the inside of cylinder body 1 is equipped with piston 17, piston 17 and cylinder body 1 sliding connection, one side of piston 17 is equipped with piston rod 18, the periphery and the sliding sleeve 4 sliding connection of piston rod 18, sliding sleeve 4's inner circle one end is equipped with second glaring 16, second glaring 16 and piston rod 18 sliding connection, the outside of cylinder cap 2 is equipped with extension sleeve 14, extension sleeve 14's one end is equipped with the dustproof pad 15 of second, the dustproof pad 15 of second and piston rod 18 sliding connection, be equipped with sealed the pad between sliding sleeve 4 and the cylinder cap 2.

In this embodiment, through the inside of sliding sleeve 4 even second gley circle 16, the gley circle is formed by a rubber and circle type circle and polytetrafluoroethylene circle combination, it is low to have frictional force, do not have the crawl, starting force is little, high pressure resistant effect, can reduce the friction between the piston rod 18 and the sliding sleeve 4 while keeping the leakproofness between the two, improve the mobility of piston rod 18, reduce starting force, through extension sleeve pipe 14 that is equipped with, realize the effect to the direction of piston rod 18, prevent under the effect that pressure is too big, lead to piston rod 18 to buckle, through second dust gasket 15 that is equipped with, improve extension sleeve pipe 14's leakproofness, prevent the entering of dust in the air, cause the harm to piston rod 18.

Specifically, the outer periphery of the piston 17 is provided with a steiner 23, the steiner 23 is fixedly arranged on the outer periphery of the piston 17, two sides of the steiner 23 are provided with Y-shaped rings 24, the Y-shaped rings 24 are fixedly connected with the outer periphery of the piston 17, the inner wall surface of the cylinder 1 is provided with a metal ceramic coating 22, and the surface of the metal ceramic coating 22 is in close contact with the steiner 23 and the Y-shaped rings 24.

In this embodiment, through the steckel 23 and the Y type circle 24 that are equipped with, cooperation cermet coating 22 realizes the internal in close contact with of piston 17 and cylinder body 1, makes it can guarantee the leakproofness of piston 17 both sides for hydraulic cylinder can be applicable to long-time high pressure work, improves its durability, thereby guarantees that hydraulic cylinder's operation is stable.

Specifically, a connecting plate 19 is arranged between the piston 17 and the piston rod 18, a buffer pad 20 is arranged at the joint of the connecting plate 19 and the piston rod 18, the buffer pad 20 is fixedly connected with the connecting plate 19, the connecting plate 19 and the buffer pad 20 are also arranged on the other side of the piston 17, buffer grooves 21 are formed in one end of the inside of the cylinder body 1 and the inner ring of one side of the inside of the sliding sleeve 4, and the buffer grooves 21 are the same as the connecting plate 19 in size.

In this embodiment, through set up connecting plate 19 and cushion 20 in piston 17's both sides, cooperation dashpot 21 realizes the cushioning effect of piston 17 and the inside both sides contact of cylinder body 1, makes it can the flexible contact, avoids in long-time operation, and piston 17 takes place direct contact with the inside both ends lateral wall of cylinder body 1 to cause the harm.

Specifically, one end of the cylinder cover 2 is provided with a guide sleeve 10, the guide sleeve 10 is fixedly arranged on one side of the cylinder cover 2 in a welding mode, and a connecting block 13 is arranged between the guide sleeve 10 and the extension sleeve 14.

In this embodiment, through the uide bushing 10 that is equipped with, come to protect piston rod 18, prevent in long-time work, because the too big reason of pressure leads to piston rod 18 to take place to buckle to the operation that the influence made it can be effectual carries on spacingly to the middle part of piston rod 18, prevents that piston rod 18 from dashing the middle part and taking place to buckle, has improved piston rod 18's compressive capacity.

Specifically, one end of the guide sleeve 10 is slidably connected with the piston rod 18, a first GREEN 12 is arranged at the joint of the guide sleeve 10 and the piston rod 18, and a first dustproof pad 11 is arranged on the outer side of the joint of the guide sleeve 10 and the piston rod 18.

In this embodiment, the movable connection between the piston rod 18 and the guide sleeve 10 is realized through the first glary ring 12, so that the sealing performance is improved, and the piston rod 18 is protected by matching with the first dustproof pad 11.

Specifically, the one end of cylinder body 1 is equipped with cylinder bottom 3, and one side that cylinder body 1 is close to cylinder bottom 3 is equipped with blast pipe 5, and the top of blast pipe 5 is equipped with check valve 6, and one side that blast pipe 5 was kept away from to cylinder body 1 is equipped with second oil-out 9, second oil-out 9 and blast pipe 5 all with the inside intercommunication of cylinder body 1, one side of sliding sleeve 4 is equipped with first oil-out 8.

In this embodiment, the exhaust pipe 5 is provided, and the check valve 6 is provided on the outer periphery of the exhaust pipe 5, so that the tightness of the exhaust port is increased, and the pressure of the oil path is maintained for a long time.

Specifically, a shock absorption pad 7 is arranged on one side of the cylinder bottom 3, and the shock absorption pad 7 is fixedly arranged on one side of the outer portion of the cylinder bottom 3 through an arranged mounting screw.

In this embodiment, through the shock pad 7 that is equipped with, come for hydraulic cylinder at the during operation provides certain cushioning effect to cylinder bottom 3, prevent to shake in the operation, cause the harm to hydraulic cylinder.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a swing hydraulic cylinder, includes cylinder body (1), uide bushing (10) and cermet coating (22), its characterized in that: the one end of cylinder body (1) is fixed and is equipped with cylinder cap (2), fixed sliding sleeve (4) that is equipped with between cylinder cap (2) and the cylinder body (1), the both sides of sliding sleeve (4) respectively with cylinder body (1) and cylinder cap (2) fixed connection, the inside of cylinder body (1) is equipped with piston (17), piston (17) and cylinder body (1) sliding connection, one side of piston (17) is equipped with piston rod (18), the periphery and sliding sleeve (4) sliding connection of piston rod (18), the inner circle one end of sliding sleeve (4) is equipped with second glary circle (16), second glary circle (16) and piston rod (18) sliding connection, the outside of cylinder cap (2) is equipped with extension sleeve pipe (14), the one end of extension sleeve pipe (14) is equipped with second dustproof pad (15), second dustproof pad (15) and piston rod (18) sliding connection, and a sealing gasket is arranged between the sliding sleeve (4) and the cylinder cover (2).

2. An oscillating hydraulic ram according to claim 1, characterised in that: the periphery of piston (17) is equipped with steckel seal (23), steckel seal (23) are fixed to be set up in the periphery of piston (17), the both sides of steckel seal (23) are equipped with Y type circle (24), the periphery fixed connection of Y type circle (24) and piston (17), the inside inner wall surface of cylinder body (1) is equipped with cermet coating (22), cermet coating (22) surface and steckel seal (23) and Y type circle (24) in close contact with.

3. An oscillating hydraulic ram according to claim 1, characterised in that: be equipped with connecting plate (19) between piston (17) and piston rod (18), the junction of connecting plate (19) and piston rod (18) is equipped with blotter (20), blotter (20) and connecting plate (19) fixed connection, the opposite side of piston (17) also is equipped with connecting plate (19) and buffer pad (20), the inside one end of cylinder body (1) and the inside one side inner circle of sliding sleeve (4) all are equipped with dashpot (21), dashpot (21) are the same with the size of connecting plate (19).

4. An oscillating hydraulic ram according to claim 1, characterised in that: one end of cylinder cap (2) is equipped with uide bushing (10), uide bushing (10) are fixed to be set up in one side of cylinder cap (2) through the welded mode, be equipped with connecting block (13) between uide bushing (10) and extension sleeve (14).

5. An oscillating hydraulic ram according to claim 4, characterised in that: one end of the guide sleeve (10) is connected with the piston rod (18) in a sliding mode, a first GREEN ring (12) is arranged at the joint of the guide sleeve (10) and the piston rod (18), and a first dustproof pad (11) is arranged on the outer side of the joint of the guide sleeve (10) and the piston rod (18).

6. An oscillating hydraulic ram according to claim 1, characterised in that: the one end of cylinder body (1) is equipped with cylinder bottom (3), one side that cylinder body (1) is close to cylinder bottom (3) is equipped with blast pipe (5), the top of blast pipe (5) is equipped with check valve (6), one side that blast pipe (5) were kept away from in cylinder body (1) is equipped with second oil-out (9), second oil-out (9) all communicate with the inside of cylinder body (1) with blast pipe (5), one side of sliding sleeve (4) is equipped with first oil-out (8).

7. An oscillating hydraulic ram according to claim 6, characterised in that: and a damping pad (7) is arranged on one side of the cylinder bottom (3), and the damping pad (7) is fixedly arranged on one side of the outside of the cylinder bottom (3) through an arranged mounting screw.