CN219035190U

CN219035190U - TN type biax cylinder

Info

Publication number: CN219035190U
Application number: CN202223350591.4U
Authority: CN
Inventors: 冯国平
Original assignee: Yueqing Jinou Pneumatic Manufacturing Co ltd
Current assignee: Yueqing Jinou Pneumatic Manufacturing Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-16
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a TN type double-shaft air cylinder, which comprises a cylinder body, a front end cover, a rear end cover, a piston rod and a piston, wherein a sealing cavity is formed among the front end cover, the cylinder body, the rear end cover and the cylinder body, a through hole is formed in the middle of the front end cover, a first oil storage groove is formed in the inner wall of the through hole, a combined dust-proof ring is arranged on one side of the first oil storage groove, one end of the piston rod is movably inserted into the sealing cavity through the through hole, one end of the piston rod positioned in the sealing cavity is fixedly connected with the piston, and a second oil storage groove is formed in the side wall of the piston. The structure can effectively avoid the excessive consumption of lubricating oil in the cylinder body, reduce the abrasion speed of metal parts, improve the tightness between the cylinder body and the piston, avoid the easy cracking of the air pipe hardening caused by the entering of the lubricating oil into the air pipe, avoid the unnecessary economic loss, reduce the maintenance cost and improve the service life of the cylinder.

Description

TN type biax cylinder

Technical Field

The utility model relates to the technical field of cylinders, in particular to a TN type double-shaft cylinder.

Background

The cylinder is a metal part which guides the piston to do linear reciprocating motion in the cylinder body, at present, the cylinder is widely used in various fields as a driving device, the working principle is that the pressure energy of compressed air is converted into mechanical energy, and the driving mechanism does linear reciprocating motion, swinging and rotating motion, and the mechanical energy is generated by the compressed air, so the design of the sealing structure of the cylinder is an important index for measuring the quality of the cylinder.

However, when the piston rod and the piston perform linear reciprocating motion in the cylinder body, friction is generated among the piston rod, the piston and the cylinder body, so that the piston rod, the piston and the cylinder body are worn, and the tightness and the service life of the cylinder are reduced.

Therefore, the existing cylinder can adopt a method of injecting lubricating oil into the inner wall of the cylinder body so as to play a role of reducing friction, but the method has the following defects that as the piston of the cylinder is pushed by compressed air, when a piston rod and the piston reciprocate linearly, the lubricating oil in the cylinder body can be discharged into an air pipe from an air inlet and an air outlet of the cylinder body under the action of air pressure, so that the lubricating oil is consumed faster, the cylinder is not beneficial to being used for a long time, and after the lubricating oil enters the air pipe, the hardening phenomenon of the air pipe is caused, the air pipe is fragile and easy to crack, the maintenance cost is increased, and unnecessary economic loss is caused.

Disclosure of Invention

The utility model aims to provide a TN type double-shaft cylinder so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a TN type biax cylinder, includes cylinder body, front end housing, rear end housing, piston rod, piston, form sealed chamber between front end housing, rear end housing and the cylinder body, the through-hole has been seted up at the front end housing middle part, set up first oil storage tank on the through-hole inner wall, one side of first oil storage tank is equipped with the combination dust ring, the one end of piston rod passes through the movable plug-in of through-hole is in sealed intracavity, the piston rod is located the one end in sealed intracavity with piston fixed connection, the second oil storage tank has been seted up on the piston lateral wall.

Preferably, a piston sealing groove is formed in one side, located in the second oil storage groove, of the piston, a piston sealing ring is arranged in the piston sealing groove, and a wear-resistant ring is fixedly arranged on the other side, located in the second oil storage groove, of the piston.

Preferably, a magnetic ring groove is formed in one end, close to the piston rod, of the piston, a hard magnetic ring is installed in the magnetic ring groove, a magnetic ring check ring for fixing the hard magnetic ring is arranged at the opening of the magnetic ring groove, and a piston buffer pad is fixedly arranged on the other side of the magnetic ring check ring.

Preferably, a clamping groove is formed in one end of the rear end cover, which is located in the sealing cavity, and an embedded buffer cushion is arranged in the clamping groove.

Preferably, a baffle is connected to one end of the piston rod away from the piston.

Preferably, the cylinder body is close to one end of the baffle plate and is provided with a tightening nut, one side of the tightening nut is movably provided with an adjusting screw, and the adjusting screw is internally and fixedly provided with a baffle plate buffer pad.

Preferably, the piston sealing ring is tightly attached to the wear-resistant ring and the inner wall of the cylinder body.

Advantageous effects

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

according to the TN type double-shaft cylinder, the first oil storage groove is arranged on the front end cover, the second oil storage groove is arranged on the piston, the structure can be used for injecting cylinder lubricating oil into the oil storage groove, the problem that lubricating oil in a cylinder body is consumed too fast is effectively solved, the abrasion speed of a metal part is reduced, the sealing performance between the cylinder body and the piston is improved, the abrasion speed of the piston is reduced, the phenomenon that the cylinder lubricating oil is extruded into an air pipe by gas during working is avoided, the air pipe is easy to harden and crack, unnecessary economic loss is avoided, the maintenance cost is reduced, and the service life of the cylinder is prolonged.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic view of a front end cap of the present utility model;

FIG. 4 is a schematic view of a rear end cap of the present utility model;

FIG. 5 is a schematic illustration of a piston according to the present utility model;

the correspondence between the reference numerals and the component names in the drawings is as follows:

1. a cylinder; 2. a front end cover; 3. a rear end cover; 4. a piston rod; 5. a piston; 6. sealing the cavity; 7. a through hole; 8. a first oil reservoir; 9. a combined dust ring; 10. a second oil storage tank; 11. a piston seal groove; 12. a piston seal ring; 13. a wear ring; 14. a magnetic ring groove; 15. a hard magnetic ring; 16. a magnetic ring retainer ring; 17. a piston cushion pad; 18. a clamping groove; 19. an embedded cushion pad; 20. a baffle; 21. tightening the nut; 22. an adjusting screw; 23. baffle cushion.

Description of the embodiments

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are 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.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements 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 utility model.

1-5, which are schematic structural views of a TN type biaxial cylinder according to a preferred embodiment of the present utility model;

the utility model discloses a TN type double-shaft cylinder, which comprises a cylinder body 1, a front end cover 2, a rear end cover 3, a piston rod 4 and a piston 5, wherein a sealing cavity 6 is formed among the front end cover 2, the rear end cover 3 and the cylinder body 1, the front end cover 2 and the rear end cover 3 are fixed at two ends of the cylinder body 1 through elastic check rings, a through hole 7 is formed in the middle of the front end cover 2, a first oil storage groove 8 is formed in the inner wall of the through hole 7, one side of the first oil storage groove 8 is clamped with a combined dust ring 9, the first oil storage groove 8 and the combined dust ring 9 are tightly attached to the piston rod 4, lubricating oil is prevented from seeping out from the first oil storage groove 8, one end of the piston rod 4 is movably inserted into the sealing cavity 6 through the through hole 7, one end of the piston rod 4 in the sealing cavity 6 is fixedly connected with the piston 5, a second oil storage groove 10 is formed in the side wall of the piston 5, and the problem that lubricating oil in the cylinder body is consumed too quickly is effectively solved by injecting lubricating oil into the first oil storage groove and the second oil storage groove.

According to the TN type double-shaft cylinder, one side, located in the second oil storage tank 10, of the piston 5 is provided with the piston sealing groove 11, a piston sealing ring 12 is arranged in the piston sealing groove 11, the other side, located in the second oil storage tank 10, of the piston 5 is fixedly provided with the wear-resistant ring 13 through clamping, and the tightness and wear resistance between the piston 5 and the cylinder body 1 are improved through the structure.

According to the TN type double-shaft cylinder, one end, close to a piston rod 4, of a piston 5 is provided with a magnetic ring groove 14, a hard magnetic ring 15 is installed in the magnetic ring groove 14, a magnetic ring retainer 16 for fixing the hard magnetic ring 15 is arranged at the opening of the magnetic ring groove 14, a piston buffer pad 17 is fixedly arranged on the other side of the magnetic ring retainer 16, one end, located in a sealing cavity 6, of a rear end cover 3 is provided with a clamping groove 18, and an embedded buffer pad 19 is clamped in the clamping groove 18, so that the piston 5 is buffered.

According to the TN type double-shaft cylinder, threads are arranged at one end, away from a piston 5, of a piston rod 4, a baffle 20 is connected through a hexagonal nut, a tightening nut 21 is arranged at one end, close to the baffle 20, of a cylinder body 1, an adjusting screw 22 is movably arranged at one side of the tightening nut 21, a baffle buffer pad 23 is fixedly arranged in the adjusting screw 22, the baffle 20 and the cylinder body 1 are buffered through the structure, and the stroke of the cylinder is conveniently adjusted.

According to the TN type double-shaft cylinder, the piston sealing ring 12 and the wear-resisting ring 13 are tightly attached to the inner wall of the cylinder body 1, so that lubricating oil in the second oil storage tank 10 is prevented from exuding.

The TN type double-shaft air cylinder is common in mechanical mode in installation mode, connection mode or arrangement mode, and can be implemented as long as the beneficial effects of the TN type double-shaft air cylinder can be achieved.

The working principle of the utility model is as follows:

the piston rod 4 closely laminates with the first oil storage tank 8, the inner wall of the cylinder body 1 closely laminates with the second oil storage tank 10, when the piston rod 4 carries out straight reciprocating motion, the piston rod 4 surface is when first oil storage tank 8 is passed through, contact the lubricating oil in the first oil storage tank 8, play the lubrication effect to the piston rod 4, and because the piston rod 4 closely laminates with first oil storage tank 8, combination dust ring 9, make lubricating oil can not ooze first oil storage tank 8, when the piston 5 carries out straight reciprocating motion, drive the lubricating oil in the second oil storage tank 10 and move simultaneously, lubricating oil in the second oil storage tank 10 passes through the cylinder body 1 inner wall, under the effect of lubricating oil in the second oil storage tank 10, play the effect to lubricating between piston 5 and the cylinder body 1 inner wall, friction between piston 5 and the cylinder body 1 has been reduced, because second oil storage tank 10 closely laminates with the cylinder body 1 inner wall, make lubricating oil can not ooze second oil storage tank 10, and piston seal 12 has guaranteed the leakproofness between piston 5 and the cylinder body 1.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a TN type biax cylinder, includes cylinder body (1), front end housing (2), rear end housing (3), piston rod (4), piston (5), form sealed chamber (6), its characterized in that between front end housing (2), rear end housing (3) and cylinder body (1): the novel oil storage device is characterized in that a through hole (7) is formed in the middle of the front end cover (2), a first oil storage groove (8) is formed in the inner wall of the through hole (7), a combined dustproof ring (9) is arranged on one side of the first oil storage groove (8), one end of the piston rod (4) is movably inserted into the sealing cavity (6) through the through hole (7), the piston rod (4) is located at one end in the sealing cavity (6) and fixedly connected with the piston (5), and a second oil storage groove (10) is formed in the side wall of the piston (5).

2. A TN type biaxial cylinder as claimed in claim 1 wherein: a piston sealing groove (11) is formed in one side, located in the second oil storage groove (10), of the piston (5), a piston sealing ring (12) is arranged in the piston sealing groove (11), and a wear-resistant ring (13) is fixedly arranged on the other side, located in the second oil storage groove (10), of the piston (5).

3. A TN type biaxial cylinder as claimed in claim 1 wherein: the piston is characterized in that a magnetic ring groove (14) is formed in one end, close to the piston rod (4), of the piston (5), a hard magnetic ring (15) is arranged in the magnetic ring groove (14), a magnetic ring check ring (16) for fixing the hard magnetic ring (15) is arranged at the opening of the magnetic ring groove (14), and a piston buffer pad (17) is fixedly arranged on the other side of the magnetic ring check ring (16).

4. A TN type biaxial cylinder as claimed in claim 1 wherein: the rear end cover (3) is located one end in the sealing cavity (6) and provided with a clamping groove (18), and an embedded buffer pad (19) is arranged in the clamping groove (18).

5. A TN type biaxial cylinder as claimed in claim 1 wherein: one end of the piston rod (4) far away from the piston (5) is connected with a baffle plate (20).

6. A TN type biaxial cylinder as claimed in claim 5 wherein: the cylinder body (1) is close to one end of the baffle (20) and is provided with a tightening nut (21), one side of the tightening nut (21) is movably provided with an adjusting screw (22), and a baffle buffer pad (23) is fixedly arranged in the adjusting screw (22).

7. A TN type biaxial cylinder as claimed in claim 2 wherein: the piston sealing ring (12) is tightly attached to the wear-resistant ring (13) and the inner wall of the cylinder body (1).