CN217873520U

CN217873520U - Fan-shaped rotary cylinder with metal-coated rubber type piston seal

Info

Publication number: CN217873520U
Application number: CN202222299820.8U
Authority: CN
Inventors: 杨欣; 杨智棋
Original assignee: Yancheng Pengmeishi Machinery Manufacturing Co ltd
Current assignee: Yancheng Pengmeishi Machinery Manufacturing Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-11-22
Anticipated expiration: 2032-08-30

Abstract

The utility model discloses a piston seal is fan-shaped revolving cylinder of metal package type of gluing belongs to revolving cylinder technical field, the reciprocating oil cylinder comprises a cylinder body, the cylinder body includes protecgulum and hou gai, left gas pocket has been seted up on the left side wall of protecgulum, right gas pocket has been seted up on the right side wall of back lid, be equipped with the air cavity in the cylinder body, install the piston in the air cavity. The utility model discloses during the use, gas in the air supply can enter into the air guide groove when the air supply enters into the air cavity and promotes the piston and remove, it can promote the lip limit to enter into the air guide groove gas, thereby make the lip limit inseparabler with the lateral wall laminating of protecgulum and hou gai, and then avoid the air supply to leak, lubricating oil is located the oil guide groove always when the piston swings in the air cavity, along with the swing lubricating oil of piston can paint on the inner wall of cylinder body, can last lubricate the inner wall of cylinder body through the usable lubricating oil of this kind of mode, and the frictional force is reduced, and then increase the smoothness nature of piston when the swing of air cavity.

Description

Fan-shaped rotary cylinder with metal-coated rubber type piston seal

Technical Field

The utility model relates to a revolving cylinder technical field specifically is a sealed fan-shaped revolving cylinder who is the metal package type of gluing of piston.

Background

The structure of the existing fan-shaped rotary cylinder is unilateral O-shaped ring seal, the rotating shaft is also provided with O-shaped ring seal, and the O-shaped ring is not suitable for dynamic seal. The rotary cylinder always rotates, the sealing principle is that the cylinder shell extrudes an O-shaped ring on the rotary piston to realize sealing, the problem of large friction force exists in the mode, the O-shaped ring on the rotary piston is easy to wear to cause leakage in the cylinder, and the leakage can influence the torque of the cylinder. Therefore, the utility model provides a piston seal is fan-shaped revolving cylinder of metal-clad plastic type to solve the above-mentioned problem that proposes.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piston seal is fan-shaped revolving cylinder of metal-clad plastic type to solve the problem that provides among the above-mentioned background art.

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

the utility model provides a sealed fan-shaped revolving cylinder who is metal-clad glue type of piston, includes the cylinder body, the cylinder body includes protecgulum and hou gai, left gas pocket has been seted up on the left side wall of protecgulum, right gas pocket has been seted up on the right side wall of back lid, be equipped with the air cavity in the cylinder body, install the piston in the air cavity, the piston rotates through pivot and cylinder body to be connected, the piston includes the cock body, the outside cover of cock body is equipped with the rubber sleeve, both ends all are equipped with the lip limit about the rubber sleeve, the lip limit all contacts with the inner wall of cylinder body, both ends all are equipped with the oil guide groove around the rubber sleeve, the oil guide groove intussuseption is filled with lubricating oil, both ends still all are equipped with the air guide groove about the rubber sleeve.

As a further scheme of the utility model, the protecgulum is in the same place through a plurality of bolted connection with the back lid, just the seal groove has all been seted up to the one end that protecgulum and back lid are close to each other, it has sealed the pad to fill in the seal groove.

As a further aspect of the present invention, the piston is fixedly connected to the shaft.

As the utility model discloses further scheme again, spacing window has all been seted up at both ends about the rubber sleeve, the stopper body about the equal fixedly connected with stopper in both ends, the stopper is located spacing window.

As a still further aspect of the present invention, the lip edge is made of the same material as that of the rubber sleeve and is integrally formed with the rubber sleeve.

As a further proposal of the utility model, the air guide groove is positioned at the joint of the lip edge and the rubber sleeve.

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

1. the utility model discloses during the use, gas in the air supply can enter into the air guide groove when the air supply enters into in the air cavity and promotes the piston and remove, enters into the air guide groove gas and can promote the lip limit to make lip limit inseparabler with the lateral wall laminating of protecgulum and hou gai, and then avoid the air supply to leak, through this kind of air supply pressure big lip limit atress just stronger the gas tightness between piston and the cylinder body just stronger.

2. The utility model has the characteristics of simple structure, the piston is the inside installation sealing member that need not of a whole cylinder body, and then has increased the utility model discloses a practicality.

3. The utility model discloses during the use, lubricating oil is located the oil groove of leading always when the piston swings in the gas chamber, can paint on the inner wall of cylinder body along with the swing lubricating oil of piston, and the inner wall to the cylinder body is lubricated continuously to usable lubricating oil through this kind of mode, reduces frictional force, and then increases the smoothness nature of piston when the gas chamber swings.

Drawings

Fig. 1 is a schematic structural view of a sector rotary cylinder with a piston seal of a metal-clad rubber type.

Fig. 2 is a top view of a sector rotary cylinder with a metal-clad piston seal.

Fig. 3 is a schematic view showing the connection between the rear cover and the piston in a sector rotary cylinder in which the piston seal is of a metal-clad rubber type.

Fig. 4 is a plan view showing the connection between the rear cover and the piston in a sector type rotary cylinder in which the piston seal is of a metal-clad type.

Fig. 5 is a disassembled view of a piston in a sector type rotary cylinder in which a piston seal is a metal-clad type.

Fig. 6 is a sectional view of a piston in a sector type rotary cylinder in which a piston seal is a metal-clad rubber type.

In the figure: 1. a front cover; 2. a rear cover; 3. a left air hole; 4. a right air hole; 5. an air cavity; 6. a rotating shaft; 7. a rubber sleeve; 8. a sealing groove; 700. a lip; 701. an oil guide groove; 702. a plug body; 703. a limiting block; 704. limiting the window; 705. and a gas guide groove.

Detailed Description

Referring to fig. 1 to 6, in an embodiment of the present invention, a fan-shaped rotary cylinder with a metal-clad seal includes a cylinder body, the cylinder body includes a front cover 1 and a rear cover 2, the front cover 1 and the rear cover 2 are connected together by a plurality of bolts, and a sealing groove 8 is disposed at one end of the front cover 1 close to the rear cover 2, a sealing gasket is disposed in the sealing groove 8, the front cover 1 and the rear cover 2 are more tightly connected by the sealing groove 8 and the sealing gasket, a left air hole 3 is disposed on a left side wall of the front cover 1, a right air hole 4 is disposed on a right side wall of the rear cover 2, an air cavity 5 is disposed in the cylinder body, a piston is disposed in the air cavity 5, the piston is rotatably connected with the cylinder body through a rotating shaft 6, the piston is fixedly connected with the rotating shaft 6, the piston comprises a plug body 702, the plug body 702 is made of metal materials (the metal materials can be aluminum alloys), a rubber sleeve 7 is sleeved outside the plug body 702, the rubber sleeve 7 wraps the plug body 702, limiting windows 704 are formed in the left end and the right end of the rubber sleeve 7, limiting blocks 703 are fixedly connected to the left end and the right end of the plug body 702, the limiting blocks 703 and the plug body 702 are integrally formed, the limiting block 703 is located in the limiting windows 704, the connection between the rubber sleeve 7 and the plug body 702 can be more stable through the mutual matching of the limiting blocks 703 and the limiting windows 704, and the rubber sleeve 7 is prevented from being separated from the plug body 702;

the left end and the right end of the rubber sleeve 7 are both provided with lips 700, the material of the lips 700 is the same as that of the rubber sleeve 7, the lips 700 and the rubber sleeve 7 are integrally formed, the lips 700 are in contact with the inner wall of the cylinder body, the front end and the rear end of the rubber sleeve 7 are both provided with oil guide grooves 701, the oil guide grooves 701 are filled with lubricating oil, the left end and the right end of the rubber sleeve 7 are both provided with air guide grooves 705, and the air guide grooves 705 are located at the connecting positions of the lips 700 and the rubber sleeve 7.

The utility model discloses a theory of operation is:

taking fig. 4 as an example, the utility model discloses in the use after the air supply enters into air cavity 5 from left gas pocket 3 can promote the piston to swing right, the piston swings right and can drive pivot 6 anticlockwise rotation, the piston can push out the air in air cavity 5 from right gas pocket 4 (the air in air cavity 5 is the gas of air cavity 5 in the piston right side) in the swing right process, likewise, the piston can swing left when the air supply enters into air cavity 5 from right gas pocket 4, the piston can drive pivot 6 clockwise rotation when swinging left, the piston can push out the air in air cavity 5 from left gas pocket 3 simultaneously;

when the air source enters the air cavity 5 to push the piston to move, the air in the air source enters the air guide groove 705, and the air entering the air guide groove 705 pushes the lip edge 700, so that the lip edge 700 is attached to the side walls of the front cover 1 and the rear cover 2 more tightly, and further the air source leakage is avoided (the air source is prevented from leaking to one side where the air outlet hole is located from one side where the air inlet hole is located, for example, the left air hole 3 is taken as an air source hole, and the air source on the left side of the piston can be prevented from leaking into the air cavity 5 on the right side of the piston), the air tightness between the piston and the cylinder body is stronger when the pressure of the air source is larger;

and lubricating oil is located oil guide groove 701 all the time when the piston swings in air cavity 5, lubricating oil can be smeared on the inner wall of the cylinder body along with the swinging of the piston, and the lubricating oil can be used for lubricating the inner wall of the cylinder body continuously in such a way, so that the smoothness of the piston when swinging in air cavity 5 is 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 utility model provides a sealed fan-shaped revolving cylinder who is metal package gluey type of piston, includes the cylinder body, its characterized in that, the cylinder body includes protecgulum (1) and hou gai (2), left gas pocket (3) have been seted up on the left side wall of protecgulum (1), right gas pocket (4) have been seted up on the right side wall of back lid (2), be equipped with air cavity (5) in the cylinder body, install the piston in air cavity (5), the piston rotates with the cylinder body through pivot (6) and is connected, the piston includes cock body (702), the outside cover of cock body (702) is equipped with rubber sleeve (7), both ends all are equipped with lip limit (700) about rubber sleeve (7), lip limit (700) contact with the inner wall of cylinder body, both ends all are equipped with oil guide groove (701) around rubber sleeve (7), oil guide groove (701) intussuseption are filled with lubricating oil, both ends still all are equipped with air guide groove (705) about rubber sleeve (7).

2. The fan-shaped rotary cylinder with the piston seal being the metal-coated rubber type according to claim 1, wherein the front cover (1) and the rear cover (2) are connected together through a plurality of bolts, a seal groove (8) is formed in each end, close to each other, of the front cover (1) and the rear cover (2), and a seal gasket is filled in each seal groove (8).

3. A sector-shaped rotary cylinder with a piston seal of the metal-clad-rubber type according to claim 1, characterised in that the piston is fixedly connected to the rotating shaft (6).

4. The sector rotary cylinder with the metal-clad rubber piston seal according to claim 1, wherein the rubber sleeve (7) is provided with limiting windows (704) at both left and right ends, the piston body (702) is fixedly connected with limiting blocks (703) at both left and right ends, and the limiting blocks (703) are located in the limiting windows (704).

5. A sector-shaped rotary cylinder of the type with a metal-clad rubber piston seal according to claim 1, characterized in that the material of the lip (700) is the same as the material of the rubber sleeve (7) and the lip (700) is formed integrally with the rubber sleeve (7).

6. A sector-shaped rotary cylinder with a piston seal of the metal-clad-rubber type according to claim 1, characterized in that the air-guide groove (705) is located at the junction of the lip (700) and the rubber sleeve (7).