CN217926550U

CN217926550U - Swing valve oil cylinder

Info

Publication number: CN217926550U
Application number: CN202221885601.1U
Authority: CN
Inventors: 李海兵; 李强
Original assignee: Hunan Guangyong Hydraulic Machinery Co ltd
Current assignee: Hunan Guangyong Hydraulic Machinery Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-11-29
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a pendulum valve hydro-cylinder, including the cylinder subassembly, cylinder subassembly one end is provided with screw gland, and the cylinder subassembly is close to screw gland one end and is provided with the clearance of caving in, and the uide bushing outer lane is provided with bellied spacing ring, and the uide bushing passes through spacing ring and clearance setting in the cylinder subassembly, and the uide bushing wherein one end butt is provided with the piston rod in screw gland in the cylinder subassembly, uide bushing inner wall are provided with dust ring, Y type sealing washer and buffer seal circle. The sealing performance of the oil cylinder is greatly improved by arranging the dust ring, the Y-shaped sealing ring and the buffer sealing ring to form triple sealing rings; the screw is added on the threaded gland, so that the finished flange is processed before welding, the processes are reduced, the subsequent processing process is not needed after the cylinder bottom flange is connected, the tightness of threaded connection is good, the material of the guide sleeve is nodular cast iron, the wear-resisting lubricating property is good, and the cost is reduced.

Description

Swing valve oil cylinder

Technical Field

The utility model relates to a hydro-cylinder, concretely relates to pendulum valve hydro-cylinder.

Background

The existing swing valve oil cylinder is easy to wear and corrode a sealing ring in the using process, so that a gap is formed between the sealing ring and the inner wall of a cylinder barrel, and a liquid leakage accident is caused, and the problem can be solved urgently.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the following technical scheme is provided:

the utility model provides a pendulum valve hydro-cylinder, includes the cylinder subassembly, cylinder subassembly one end is provided with screw gland, and the cylinder subassembly is close to screw gland one end and is provided with the clearance of caving in, and the uide bushing outer lane is provided with bellied spacing ring, and the uide bushing passes through spacing ring and clearance setting in the cylinder subassembly, and the uide bushing wherein one end butt is provided with the piston rod in the cylinder subassembly, uide bushing inner wall are provided with dust ring, Y type sealing washer and buffering sealing washer.

Further, the inner wall of the thread gland is provided with inner thread threads, the outer wall of the cylinder barrel assembly is provided with outer thread threads matched with the thread gland, and the thread gland is connected to the cylinder barrel assembly in a threaded mode.

Furthermore, a first screw hole is formed in the screw gland, and the lower end of the screw penetrates through the first screw hole to be coupled with the outer thread on the cylinder barrel assembly.

Furthermore, the guide sleeve outer wall is provided with sealed slot, is provided with O type sealing washer in the sealed slot, and O type sealing washer butt is in cylinder subassembly inner wall.

Furthermore, a cylinder head flange is arranged at one end, away from the screw gland, of the cylinder barrel assembly, an O-shaped ring is arranged between the cylinder head flange and one end, away from the screw gland, of the cylinder barrel assembly, and a check ring is arranged between the cylinder head flange and the inner wall of the cylinder barrel assembly.

Furthermore, the guide sleeve is made of wear-resistant cast iron.

The utility model discloses beneficial effect as follows:

the device is provided with the guide sleeve and is used for reducing abrasion between the cylinder barrel assembly and the piston rod, so that the service life of the swing valve oil cylinder is prolonged.

The sealing performance of the oil cylinder is greatly improved by arranging the dust ring, the Y-shaped sealing ring and the buffer sealing ring to form triple sealing rings.

The screw is added on the screw gland, so that the finished flange is processed before welding, the processes are reduced, the subsequent processing process is not needed after the cylinder bottom flange is connected, and the screw thread connection tightness is good.

The guide sleeve is made of nodular cast iron, so that the wear-resisting and lubricating properties are good, and the cost is reduced.

Drawings

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

FIG. 2 is an enlarged view of the portion A in FIG. 1,

the reference numerals are explained below: 1. a piston rod; 2. a screw gland; 3. a guide sleeve; 4. a cylinder barrel assembly; 5. a cylinder head flange; 6. a dust ring; 7. a Y-shaped seal ring; 8. a screw; 9. an O-shaped sealing ring; 10. a buffer sealing ring; 113. a retainer ring; 14. and an O-shaped ring.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention will be further explained with reference to the drawings attached to the specification:

the utility model provides a pendulum valve hydro-cylinder, including cylinder subassembly 4, 4 one end of cylinder subassembly is provided with screw gland 2, cylinder subassembly 4 is close to screw gland 2 one end and is provided with the clearance of caving in, 3 outer lanes of uide bushing are provided with bellied spacing ring, uide bushing 3 sets up in cylinder subassembly 4 through spacing ring and clearance, uide bushing 3 wherein one end butt in screw gland 2, be provided with piston rod 1 in the cylinder subassembly 4, 3 inner walls of uide bushing are provided with dust ring 6, Y type sealing washer 7 and buffer seal 10, screw gland 2 inner wall is provided with the internal thread, the cylinder subassembly 4 outer wall is provided with the external thread screw thread with screw gland 2 adaptation, screw gland 2 threaded connection is in the cylinder external member, screw gland 2 has seted up first screw, lower extreme and the external thread coupling on the cylinder subassembly 4 after screw 8 passes first screw, 3 outer walls of uide bushing are provided with the seal groove, the sealed 9 butt in cylinder subassembly 4 of O type sealing groove is provided with O type 9,O in cylinder subassembly 4 inner wall, the one end that cylinder subassembly 4 kept away from screw gland 2 is provided with wear-resisting flange material between the cylinder subassembly 113, cylinder subassembly is provided with cast iron ring 113.

The utility model discloses the theory of operation as follows:

the guide sleeve 3 is connected with the cylinder barrel assembly 4 through the cylinder barrel inner wall clearance and the limiting ring in the radial direction in a matched mode, the guide sleeve 3 is provided with a sealing groove, an O-shaped sealing ring 9 is assembled in the sealing groove, the axial direction is fixed through the end face of the screw gland 2 and the end face of the cylinder barrel, the screw gland 2 is connected through a screw pair, the set screw 8 is anti-loose, the screw 8 is clamped in the outer thread of the cylinder barrel, the screw cap can not rotate, and the piston rod 1 forms a sliding pair through the outer wall of the rod body and the inner wall of the guide sleeve 3. The guide sleeve 3 is made of wear-resistant cast iron, and the inner wall of the guide sleeve 3 is provided with a dustproof ring 6, a Y-shaped sealing ring and a buffering sealing ring 10. When the device is used, because the wear-resistant cast iron material is used, the support performance of the piston rod 1 is improved, the direct gap between the guide sleeve 3 and the piston rod 1 is reduced, and the sealing performance is improved, so that oil leakage is avoided.

The foregoing illustrates and describes the general principles, features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a pendulum valve hydro-cylinder, includes cylinder subassembly (4), cylinder subassembly (4) one end is provided with screw gland (2), its characterized in that: cylinder subassembly (4) are close to screw gland (2) one end is provided with the clearance of caving in, and uide bushing (3) outer lane is provided with bellied spacing ring, uide bushing (3) through spacing ring and clearance set up in cylinder subassembly (4), uide bushing (3) wherein one end butt in screw gland (2), be provided with piston rod (1) in cylinder subassembly (4), uide bushing (3) inner wall is provided with dust ring (6), Y type sealing washer (7) and buffer seal (10).

2. The pendulum valve cylinder of claim 1, wherein: the inner wall of the screw gland (2) is provided with inner screw threads, the outer wall of the cylinder barrel assembly (4) is provided with outer screw threads matched with the screw gland (2), and the screw gland (2) is in threaded connection with the cylinder barrel assembly.

3. The pendulum valve cylinder of claim 2, wherein: the screw gland (2) is provided with a first screw hole, and a screw (8) penetrates through the first screw hole and then the lower end of the screw is coupled with an outer thread on the cylinder barrel component (4).

4. The swing valve cylinder according to claim 1, wherein: the outer wall of the guide sleeve (3) is provided with a sealing groove, an O-shaped sealing ring (9) is arranged in the sealing groove, and the O-shaped sealing ring (9) abuts against the inner wall of the cylinder barrel assembly (4).

5. The pendulum valve cylinder of claim 1, wherein: the cylinder barrel assembly is characterized in that a cylinder head flange (5) is arranged at one end, away from the thread gland (2), of the cylinder barrel assembly (4), an O-shaped ring (14) is arranged between the cylinder head flange (5) and one end, away from the thread gland (2), of the cylinder barrel assembly (4), and a check ring (113) is arranged between the inner walls of the cylinder barrel assembly (4) and the cylinder head flange (5).

6. The pendulum valve cylinder of claim 1, wherein: the guide sleeve (3) is made of wear-resistant cast iron.