CN220015689U

CN220015689U - Steering cylinder

Info

Publication number: CN220015689U
Application number: CN202321675655.XU
Authority: CN
Inventors: 杨收青; 郑召海; 汤志移
Original assignee: Shandong Zhonghao Hydraulic Co ltd
Current assignee: Shandong Zhonghao Hydraulic Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-11-14
Anticipated expiration: 2033-06-29

Abstract

The utility model relates to the technical field of steering cylinders and discloses a steering cylinder which comprises a cylinder barrel, wherein a sealing mechanism is arranged at the top of the cylinder barrel, an oil pipe body is arranged on the right side of the sealing mechanism and fixedly connected to the top of the cylinder barrel, a piston rod is arranged on the right side of the cylinder barrel, a buffer mechanism is arranged on the surface of the cylinder barrel, the sealing mechanism comprises an oil pipe interface which is fixedly connected to the top of the cylinder barrel, and a fixing ring is fixedly connected in the oil pipe interface. This steering cylinder, through the sealing mechanism who sets up, the closing plate is tightly laminated to solid fixed ring's surface, can play sealed purpose to the oil pipe interface, avoided the oil content volatilized phenomenon to appear in the oil pipe interface because of the leakproofness is not enough, prolonged the life of this steering cylinder to a certain extent, through the buffer gear who sets up, through the second spring that sets up, the impact force that weakens the piston rod brought that can the furthest to effectually prevented the phenomenon that the cylinder takes place deformation.

Description

Steering cylinder

Technical Field

The utility model relates to the technical field of steering oil cylinders, in particular to a steering oil cylinder.

Background

The steering cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). The device has simple structure and reliable operation. When it is used to realize reciprocating motion, it can eliminate speed reducer, and has no transmission clearance and smooth motion, so that it can be widely used in hydraulic systems of various machines. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between two sides of the effective area of the piston; the hydraulic cylinder basically consists of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device.

1. At present, most of the oil pipe interfaces at the top of the existing steering oil cylinder are poor in tightness, so that the phenomenon that oil in the steering oil cylinder volatilizes easily is caused, and the service life of the steering oil cylinder is shortened.

2. At present, most of the existing steering cylinders have no structure for buffering the piston rod, so that the piston rod is easy to deform due to overlarge impact force when in compression or extension motion, and defects exist.

Disclosure of Invention

The present utility model is directed to a steering cylinder, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a steering cylinder, includes that the cylinder top is provided with sealing mechanism, sealing mechanism right side is provided with the oil pipe body, oil pipe body fixed connection is in the cylinder top, the cylinder right side is provided with the piston rod, the cylinder surface is provided with buffer gear.

The sealing mechanism comprises an oil pipe interface, the oil pipe interface is fixedly connected to the top of the cylinder barrel, a fixing ring is fixedly connected to the inside of the oil pipe interface, a fixing rod is fixedly connected to the top of the fixing ring, a first spring is sleeved on the surface of the fixing rod, a supporting piece is arranged at the top of the first spring, the supporting piece is slidably connected to the surface of the fixing rod, and a connecting pipe is fixedly connected to one side of the supporting piece.

Preferably, the connecting pipe surface fixedly connected with closing plate, the closing plate sets up in the solid fixed ring top, and the closing plate is tightly laminated to the surface of solid fixed ring, can play sealed purpose to oil pipe interface.

Preferably, the surface of the fixing rod is provided with threads, the surface of the fixing rod is in threaded connection with a locking nut, the oil pipe body is fixedly connected to the right side of the surface of the oil pipe interface, and the connecting pipe can be fixed through the locking nut.

Preferably, the limiting groove is formed in the sealing plate, the limiting rod is inserted into the limiting groove, the limiting rod is fixedly connected to the top of the fixing ring, the connecting pipe is inserted into the inner ring of the fixing ring, and the purpose of preliminary limiting of the connecting pipe can be achieved through the limiting rod.

Preferably, the buffer gear includes the support frame, support frame fixed connection is in the cylinder surface, fixedly connected with connecting rod in the support frame, the second spring has all been cup jointed on connecting rod surface both sides, through the second spring that sets up, the impact force that the piston rod brought that weakens that can the furthest to effectually prevented the phenomenon that the cylinder takes place deformation.

Preferably, a sliding part is arranged between the second springs and is fixedly connected to the surface of the piston rod, the sliding part is connected to the surface of the connecting rod in a sliding mode, and the second springs can achieve the function of the second springs through the sliding part.

Preferably, the left side fixedly connected with locating part on connecting rod surface, the locating part sets up in one side of second spring, through the locating part that sets up, can carry out spacingly to the second spring.

Compared with the prior art, the utility model provides the steering oil cylinder which has the following beneficial effects:

1. according to the steering oil cylinder, the sealing plate is tightly attached to the surface of the fixed ring through the arranged sealing mechanism, so that the purpose of sealing an oil pipe interface can be achieved, the phenomenon that oil content volatilizes due to insufficient sealing performance of the oil pipe interface is avoided, and the service life of the steering oil cylinder is prolonged to a certain extent.

2. According to the steering oil cylinder, through the buffer mechanism, the impact force caused by the piston rod can be weakened to the greatest extent through the second spring, and therefore the phenomenon that the cylinder barrel deforms is effectively prevented.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the whole part of the structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of a seal mechanism of the present utility model;

FIG. 4 is a schematic view of a seal mechanism of the present utility model shown separated;

FIG. 5 is a schematic diagram showing the separation of the buffer mechanism according to the present utility model.

In the figure: 1. a cylinder; 2. a sealing mechanism; 21. a connecting pipe; 22. a lock nut; 23. a first spring; 24. a limit rod; 25. a support; 26. a sealing plate; 27. a fixed rod; 28. a fixing ring; 29. an oil pipe interface; 3. a buffer mechanism; 31. a support frame; 32. a connecting rod; 33. a second spring; 34. a slider; 35. a limiting piece; 4. an oil pipe body; 5. a piston rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a technical scheme that:

embodiment one:

1-2 to 3-4, a steering cylinder comprises a cylinder barrel 1, wherein a sealing mechanism 2 is arranged at the top of the cylinder barrel, an oil pipe body 4 is arranged on the right side of the sealing mechanism 2, the oil pipe body 4 is fixedly connected to the top of the cylinder barrel 1, a piston rod 5 is arranged on the right side of the cylinder barrel 1, and a buffer mechanism 3 is arranged on the surface of the cylinder barrel 1.

The sealing mechanism 2 comprises an oil pipe interface 29, the oil pipe interface 29 is fixedly connected to the top of the cylinder barrel 1, a fixing ring 28 is fixedly connected to the inside of the oil pipe interface 29, a fixing rod 27 is fixedly connected to the top of the fixing ring 28, a first spring 23 is sleeved on the surface of the fixing rod 27, a supporting piece 25 is arranged on the top of the first spring 23, the supporting piece 25 is slidably connected to the surface of the fixing rod 27, and a connecting pipe 21 is fixedly connected to one side of the supporting piece 25.

Further, the surface of the connecting pipe 21 is fixedly connected with a sealing plate 26, the sealing plate 26 is arranged at the top of the fixed ring 28, and the sealing plate 26 is tightly attached to the surface of the fixed ring 28, so that the oil pipe joint 29 can be sealed.

Further, the surface of the fixing rod 27 is provided with threads, the surface of the fixing rod 27 is in threaded connection with a locking nut 22, the oil pipe body 4 is fixedly connected to the right side of the surface of the oil pipe interface 29, and the connecting pipe 21 can be fixed through the locking nut 22.

Further, a limit groove is formed in the sealing plate 26, a limit rod 24 is inserted into the limit groove, the limit rod 24 is fixedly connected to the top of the fixed ring 28, the connecting pipe 21 is inserted into the inner ring of the fixed ring 28, and the purpose of preliminary limit of the connecting pipe 21 can be achieved through the limit rod 24.

Embodiment two:

referring to fig. 5, on the basis of the first embodiment, the buffer mechanism 3 further includes a support frame 31, the support frame 31 is fixedly connected to the surface of the cylinder barrel 1, a connecting rod 32 is fixedly connected in the support frame 31, two sides of the surface of the connecting rod 32 are respectively sleeved with a second spring 33, and impact force caused by the piston rod 5 can be reduced to the greatest extent through the second springs 33, so that deformation of the cylinder barrel 1 is effectively prevented.

Further, a sliding piece 34 is arranged between the second springs 33, the sliding piece 34 is fixedly connected to the surface of the piston rod 5, the sliding piece 34 is slidably connected to the surface of the connecting rod 32, and the second springs 33 can achieve the function of the second springs through the sliding piece 34.

Further, the left side of the surface of the connecting rod 32 is fixedly connected with a limiting piece 35, the limiting piece 35 is arranged on one side of the second spring 33, and the second spring 33 can be limited through the arranged limiting piece 35.

In the actual operation process, when the device is used, firstly, the connecting pipe 21 is placed in the oil pipe interface 29, when the connecting pipe 21 is inserted into the inner ring of the fixed ring 28, the fixed rod 27 can be inserted into the support piece 25, the limit rod 24 can be inserted into the sealing plate 26, then, the locking nut 22 is connected to the surface of the fixed rod 27 in a threaded manner, the connecting pipe 21 can be positioned, and the sealing plate 26 is tightly attached to the surface of the fixed ring 28, so that the oil pipe interface 29 can be sealed, the phenomenon that oil content volatilizes due to insufficient sealing performance of the oil pipe interface 29 is avoided, and the service life of the steering oil cylinder is prolonged to a certain extent;

when the piston rod 5 is in a compressed and stretched state, the sliding piece 34 slides on the surface of the connecting rod 32 at this time and continuously extrudes the second spring 33, so that the second spring 33 is in a compressed and stretched state continuously, and the impact force brought by the piston rod 5 can be weakened to the greatest extent through the second spring 33, thereby effectively preventing the deformation of the cylinder barrel 1.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Claims

1. The utility model provides a steering cylinder, includes cylinder (1) top is provided with sealing mechanism (2), its characterized in that: an oil pipe body (4) is arranged on the right side of the sealing mechanism (2), the oil pipe body (4) is fixedly connected to the top of the cylinder barrel (1), a piston rod (5) is arranged on the right side of the cylinder barrel (1), and a buffer mechanism (3) is arranged on the surface of the cylinder barrel (1);

sealing mechanism (2) are including oil pipe interface (29), oil pipe interface (29) fixedly connected with is in cylinder (1) top, fixedly connected with solid fixed ring (28) in oil pipe interface (29), gu fixed ring (28) top fixedly connected with dead lever (27), first spring (23) have been cup jointed on dead lever (27) surface, first spring (23) top is provided with support piece (25), support piece (25) sliding connection is in dead lever (27) surface, one side fixedly connected with connecting pipe (21) of support piece (25).

2. A steering cylinder as claimed in claim 1, wherein: the surface of the connecting pipe (21) is fixedly connected with a sealing plate (26), and the sealing plate (26) is arranged at the top of the fixing ring (28).

3. A steering cylinder as claimed in claim 1, wherein: the surface of the fixed rod (27) is provided with threads, the surface of the fixed rod (27) is in threaded connection with a lock nut (22), and the oil pipe body (4) is fixedly connected to the right side of the surface of the oil pipe interface (29).

4. A steering cylinder as claimed in claim 2, wherein: a limit groove is formed in the sealing plate (26), a limit rod (24) is inserted into the limit groove, the limit rod (24) is fixedly connected to the top of the fixed ring (28), and the connecting pipe (21) is inserted into the inner ring of the fixed ring (28).

5. A steering cylinder as claimed in claim 1, wherein: the buffer mechanism (3) comprises a support frame (31), the support frame (31) is fixedly connected to the surface of the cylinder barrel (1), a connecting rod (32) is fixedly connected in the support frame (31), and second springs (33) are sleeved on two sides of the surface of the connecting rod (32).

6. The steering cylinder as claimed in claim 5, wherein: a sliding piece (34) is arranged between the two second springs (33), the sliding piece (34) is fixedly connected to the surface of the piston rod (5), and the sliding piece (34) is connected to the surface of the connecting rod (32) in a sliding mode.

7. The steering cylinder as claimed in claim 5, wherein: and a limiting piece (35) is fixedly connected to the left side of the surface of the connecting rod (32), and the limiting piece (35) is arranged on one side of the second spring (33).