CN216407353U

CN216407353U - Integral type high strength hydraulic pressure swing hydro-cylinder

Info

Publication number: CN216407353U
Application number: CN202123085758.4U
Authority: CN
Inventors: 陈冬根; 汤关云; 潘肖列
Original assignee: Zhejiang Tiangong Hydraulic Machinery Co ltd
Current assignee: Zhejiang Tiangong Hydraulic Machinery Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-04-29
Anticipated expiration: 2031-12-07

Abstract

The application discloses integral type high strength hydraulic pressure swing hydro-cylinder relates to swing hydro-cylinder technical field, improves the problem that the oil leak appears easily in current swing hydro-cylinder, including cylinder body, first port, second port, swing cover, piston ring and output shaft, the equal fixedly connected with spacing ring in both ends of output shaft, two the spacing ring is established respectively in first port and second port, the equal fixedly connected with wearing layer of internal surface of cylinder body, first port and second port. This application sets up the wearing layer through the internal surface at cylinder body, first port and second port, can improve the intensity and the wearability of cylinder body, slows down the wearing and tearing of cylinder body, makes the difficult wearing and tearing of cylinder body and the oil leak appears, through set up the spacing ring in first port and second port, can play limiting displacement to the output shaft, promotes the leakproofness of first port and second port, further reduces the condition that the oil leak appears.

Description

Integral type high strength hydraulic pressure swing hydro-cylinder

Technical Field

The application relates to the technical field of swing oil cylinders, in particular to an integrated high-strength hydraulic swing oil cylinder.

Background

The swing cylinder is a closely assembled fitting, which integrates very high torque by applying hydraulic pressure in a small space, and adopts a combined helical tooth structure inside, so that the whole swing cylinder can make large torque in a small space, and can be controlled accurately and easily despite high power.

In the process of realizing the above, the inventor finds that at least the following problems exist in the technology: the existing swing oil cylinder is mostly of a welding structure, the overall strength is not high, the welding part is easy to crack, and the oil leakage condition is easy to occur.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the oil leak appears easily in current swing hydro-cylinder, this application provides an integral type high strength hydraulic pressure swing hydro-cylinder.

The application provides an integral type high strength hydraulic swing hydro-cylinder adopts following technical scheme:

an integrated high-strength hydraulic swing oil cylinder comprises a cylinder body and a swing sleeve installed in the cylinder body, wherein a first port and a second port are respectively arranged at two ends of the cylinder body, a first oil inlet is formed in one end, close to the first port, of the outer side wall of the cylinder body, and a second oil inlet is formed in one end, close to the second port, of the outer side wall of the cylinder body;

the two ends of the swing sleeve are fixedly connected with piston rings, the piston rings are connected with the inner surface of the cylinder body in a sliding mode, and an output shaft is connected to the inner threads of the swing sleeve;

the two ends of the output shaft are fixedly connected with limiting rings, the two limiting rings are arranged in the first port and the second port respectively, the two limiting rings are connected with the inner surfaces of the first port and the second port in a rotating mode respectively, and the inner surfaces of the cylinder body, the first port and the second port are fixedly connected with wear-resistant layers.

Through adopting above-mentioned technical scheme, through at the cylinder body, the internal surface of first port and second port sets up the wearing layer, can improve the intensity and the wearability of cylinder body, slow down the wearing and tearing of cylinder body, make the difficult wearing and tearing of cylinder body and the oil leak appears, through set up the spacing ring in first port and second port, can play limiting displacement to the output shaft, when the output shaft rotates, the spacing ring can rotate in first port and second port, promote the leakproofness of first port and second port, the condition of oil leak appears in the further reduction.

Optionally, the cylinder body, the first port and the second port are of an integrally formed structure.

By adopting the technical scheme, the defect that the welding position is easy to crack is reduced.

Optionally, the wear-resistant layer is a nickel-tungsten alloy layer.

By adopting the technical scheme, the nickel-tungsten alloy layer has high strength and high wear resistance.

Optionally, the outer surface of the piston ring is sleeved with a first sealing ring.

Through adopting above-mentioned technical scheme, first sealing washer can improve the sealed effect of piston ring.

Optionally, the outer surface of the middle part of the output shaft is provided with an external thread matched with the swing sleeve.

By adopting the technical scheme, when the swinging sleeve swings in the cylinder body under the action of the hydraulic oil, the output shaft can rotate under the action of the external threads.

Optionally, the outer surface of the limiting ring is sleeved with a second sealing ring.

Through adopting above-mentioned technical scheme, the sealed effect of spacing ring can be improved to the second sealing washer.

Optionally, an end cover is disposed on each of one side of the first port and one side of the second port.

Through adopting above-mentioned technical scheme, the end cover is used for playing the effect of covering to first port and second port.

Optionally, the inner surface of the end cap is fixedly connected with a third sealing ring.

Through adopting above-mentioned technical scheme, the third sealing washer can improve the sealed effect of end cover.

In summary, the present application includes at least one of the following benefits:

1. according to the oil-leakage-proof cylinder, the abrasion-resistant layers are arranged on the inner surfaces of the cylinder body, the first port and the second port, so that the strength and the abrasion resistance of the cylinder body can be improved, the abrasion of the cylinder body is slowed down, and the cylinder body is not easy to abrade to cause oil leakage;

2. this application can play limiting displacement to the output shaft through set up the spacing ring in first port and second port, and when the output shaft rotated, the spacing ring can rotate in first port and second port, promoted the leakproofness of first port and second port, further reduced the condition that the oil leak appears.

Drawings

FIG. 1 is a schematic front view of the present application;

FIG. 2 is a schematic sectional front view of the present application;

fig. 3 is a longitudinal sectional structure diagram of the cylinder body of the present application.

Description of reference numerals: 1. a cylinder body; 2. a swinging sleeve; 3. a first port; 4. a second port; 5. a first oil inlet; 6. a second oil inlet; 7. a piston ring; 8. an output shaft; 9. a limiting ring; 10. a wear layer; 11. a first seal ring; 12. an external thread; 13. a second seal ring; 14. an end cap; 15. and a third sealing ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1-3, an integrated high-strength hydraulic swing cylinder includes a cylinder body 1 and a swing sleeve 2 installed in the cylinder body 1, wherein a first port 3 and a second port 4 are respectively disposed at two ends of the cylinder body 1, the first port 3 and the second port 4 are of an integrally formed structure, the first port 3 and the second port 4 are not required to be welded to the cylinder body 1, and the defect that a welded portion is prone to cracking is reduced.

Referring to fig. 1 and 2, a first oil inlet 5 is provided at one end of the outer side wall of the cylinder body 1 close to the first port 3, a second oil inlet 6 is provided at one end of the outer side wall of the cylinder body 1 close to the second port 4, and hydraulic oil is injected into the cylinder body through the first oil inlet 5 and the second oil inlet 6.

Referring to fig. 2, both ends of the swing sleeve 2 are fixedly connected with piston rings 7, the piston rings 7 are connected with the inner surface of the cylinder body 1 in a sliding mode, first sealing rings 11 are sleeved on the outer surfaces of the piston rings 7, the sealing effect of the piston rings 7 can be improved through the first sealing rings 11, an output shaft 8 is connected to the inner threads of the swing sleeve 2, external threads 12 matched with the swing sleeve 2 are arranged on the outer surface of the middle portion of the output shaft 8, and when the swing sleeve 2 swings in the cylinder body 1 under the action of hydraulic oil, the output shaft 8 can rotate under the action of the external threads 12.

Referring to fig. 2, the equal fixedly connected with spacing ring 9 in both ends of output shaft 8, two spacing rings 9 are established respectively in first port 3 and second port 4, and two spacing rings 9 are connected with the internal surface rotation of first port 3 and second port 4 respectively, spacing ring 9 can play limiting displacement to output shaft 8, when output shaft 8 rotates, spacing ring 9 can be at first port 3 and the 4 internal rotations of second port, promote the leakproofness of first port 3 and second port 4, second sealing washer 13 has been cup jointed to the surface of spacing ring 9, second sealing washer 13 can improve the sealed effect of spacing ring 9.

Referring to fig. 1 and 2, an end cover 14 is disposed on each of one sides of the first port 3 and the second port 4, the end cover 14 is used for covering the first port 3 and the second port 4, a third sealing ring 15 is fixedly connected to an inner surface of the end cover 14, and the third sealing ring 15 can improve a sealing effect of the end cover 14.

The implementation principle of the application is as follows: when using, pour into hydraulic oil into the cylinder body in through first oil inlet 5 and second oil inlet 6, make swing cover 2 receive hydraulic oil effect swing in cylinder body 1, at this moment, output shaft 8 can rotate under the effect of external thread 12, wherein, spacing ring 9 can play limiting displacement to output shaft 8, when output shaft 8 rotates, spacing ring 9 can be at first port 3 and the 4 internal rotations of second port, promote the leakproofness of first port 3 and second port 4, wearing layer 10 can improve the intensity and the wearability of cylinder body, slow down the wearing and tearing of cylinder body, make the difficult wearing and tearing of cylinder body and the oil leak appears.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an integral type high strength hydraulic pressure swing hydro-cylinder, includes cylinder body (1) and installs swing cover (2) in cylinder body (1), its characterized in that: a first port (3) and a second port (4) are respectively arranged at two ends of the cylinder body (1), a first oil inlet (5) is arranged at one end, close to the first port (3), of the outer side wall of the cylinder body (1), and a second oil inlet (6) is arranged at one end, close to the second port (4), of the outer side wall of the cylinder body (1);

both ends of the swing sleeve (2) are fixedly connected with piston rings (7), the piston rings (7) are connected with the inner surface of the cylinder body (1) in a sliding manner, and an output shaft (8) is connected with the inner threads of the swing sleeve (2);

the equal fixedly connected with spacing ring (9) in both ends of output shaft (8), two spacing ring (9) are established respectively in first port (3) and second port (4), and two spacing ring (9) are connected with the internal surface rotation of first port (3) and second port (4) respectively, the equal fixedly connected with wearing layer (10) of internal surface of cylinder body (1), first port (3) and second port (4).

2. The integrated high-strength hydraulic swing cylinder according to claim 1, characterized in that: the cylinder body (1), the first port (3) and the second port (4) are of an integrally formed structure.

3. The integrated high-strength hydraulic swing cylinder according to claim 2, characterized in that: the wear-resistant layer (10) is a nickel-tungsten alloy layer.

4. The integrated high-strength hydraulic swing cylinder according to claim 1, characterized in that: and a first sealing ring (11) is sleeved on the outer surface of the piston ring (7).

5. The integrated high-strength hydraulic swing cylinder according to claim 1, characterized in that: the outer surface of the middle part of the output shaft (8) is provided with an external thread (12) matched with the swing sleeve (2).

6. The integrated high-strength hydraulic swing cylinder according to claim 1, characterized in that: and the outer surface of the limiting ring (9) is sleeved with a second sealing ring (13).

7. The integrated high-strength hydraulic swing cylinder according to claim 1, characterized in that: and end covers (14) are arranged on one sides of the first port (3) and the second port (4).

8. The integrated high-strength hydraulic swing cylinder according to claim 7, characterized in that: and the inner surface of the end cover (14) is fixedly connected with a third sealing ring (15).