CN212202689U

CN212202689U - Blade swing cylinder with good sealing performance

Info

Publication number: CN212202689U
Application number: CN202020270790.6U
Authority: CN
Inventors: 朱志闯
Original assignee: Derun Hydraulic Technology Changzhou Co ltd
Current assignee: Derun Hydraulic Technology Changzhou Co ltd
Priority date: 2020-03-08
Filing date: 2020-03-08
Publication date: 2020-12-22
Anticipated expiration: 2030-03-08

Abstract

The utility model relates to the technical field of blade swing cylinders, in particular to a blade swing cylinder with good sealing performance, which comprises a blade swing cylinder main body and a turntable, wherein the front end of the blade swing cylinder main body is fixedly provided with an upper stator cover plate, the rear end of the blade swing cylinder main body is fixedly provided with a lower stator cover plate, the front end and the rear end of a rotating blade are both fixedly provided with connecting plates, the opposite sides of the two connecting plates are both fixedly connected with sealing strips, and the left side and the right side of the two connecting plates are both uniformly distributed with a plurality of springs. Thereby the sealed effect of improvement that can be better for when equipment uses, can improve sealed effect.

Description

Blade swing cylinder with good sealing performance

Technical Field

The utility model relates to a blade oscillating cylinder technical field specifically is a blade oscillating cylinder that leakproofness is good.

Background

The spiral swing hydraulic cylinder is a special hydraulic cylinder which realizes rotary motion by utilizing a spiral pair with a large helix angle, a spiral rod of an output shaft and a cylinder body are fixed by a bearing with two degrees of freedom, spiral teeth on the inner surface of a piston are meshed with the spiral teeth of the spiral rod, the surface shape of the spiral rod of the output shaft is the same as that of the outer surface of the piston, the piston does linear motion along the spiral rod and rotates under the action of hydraulic pressure of the piston in a rotating sleeve, and the spiral rod with the output shaft also rotates along with the piston; whereby a swinging movement is achieved.

The existing swing hydraulic cylinder has a plurality of types, one of the swing hydraulic cylinders is a blade swing cylinder, but when the existing blade swing cylinder is used, the blades in the blade swing cylinder are in clearance fit with the inner wall of a cylinder body, hydraulic oil pushes the blades to rotate, and meanwhile, partial hydraulic oil can leak from the clearance between the blades and the cylinder body, so that the current situation is changed by the blade swing cylinder with good sealing performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a blade swing jar that leakproofness is good to solve the problem that proposes among the above-mentioned background art.

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

a vane swing cylinder with good sealing performance comprises a vane swing cylinder main body and a rotary table, wherein a stator upper cover plate is fixedly mounted at the front end of the vane swing cylinder main body, a stator lower cover plate is fixedly mounted at the rear end of the vane swing cylinder main body, an oil cavity is arranged in the vane swing cylinder main body, a reverse oil inlet is fixedly formed in the upper surface of the left side of the vane swing cylinder main body, a connecting pipe is fixedly connected with one end of the reverse oil inlet, a flow control valve is fixedly mounted at one end, away from the reverse oil inlet, of the connecting pipe, a forward oil inlet is fixedly formed in the lower surface of the left side of the vane swing cylinder main body, a fixed block is fixedly mounted on the inner wall of the left side of the vane swing cylinder main body, a rotating vane is fixedly mounted on one side of the rotary table, connecting plates, and a plurality of springs are uniformly distributed on the left side and the right side of the two connecting plates.

Preferably, one side of the rotating disc, which is far away from the rotating blade, is in clearance fit with one end, which is far away from the blade swinging cylinder main body, of the fixed block.

Preferably, one end of the forward oil inlet is fixedly connected with a connecting pipe.

Preferably, the joints of the upper stator cover plate, the blade swing cylinder main body and the lower stator cover plate are all provided with O-shaped sealing rings.

Preferably, the connecting plate is formed by connecting the back surfaces of two semicircles, and the spring is arranged at the included angle of the two semicircles.

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

1. the utility model discloses in, through the connecting plate that sets up, be reverse oil inlet fuel feeding when the connecting pipe, along with the increase of oil pressure, the left side both ends of connecting plate separate for the sealing strip and the oil pocket inner wall of connecting plate rear end closely press close to, can prevent that fluid from passing, the oil pressure is powerful sealed effect also can be better more, otherwise also be the same when positive oil inlet leads to oil, thereby can be better improvement sealed effect, when making equipment use, can improve sealed effect.

2. The utility model discloses in, through the spring that sets up, be reverse oil inlet fuel feeding when the connecting pipe, the one end that is close to forward oil inlet when along with the increase of oil pressure then is the cavity, thereby the spring is taut with connecting plate and rotor blade's direction reduces the frictional force of cavity one end sealing strip and cavity inner wall, thereby the life of extension sealing strip, and can make the one end in non-empty oil cavity accelerate, thereby improve the holistic rotational speed of blade swing jar, when making equipment use, can extend life and improve the rotational speed.

Drawings

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

FIG. 2 is an internal structure view of the present invention;

FIG. 3 is a structural view of the connection plate of the present invention;

in the figure: the device comprises a connecting pipe 1, a reverse oil inlet 2, a blade swinging cylinder body 3, a forward oil inlet 4, a fixed block 5, a rotary table 6, a rotating blade 7, a flow control valve 8, an oil cavity 9, a sealing strip 10, a connecting plate 11, a spring 12, a stator lower cover plate 13 and a stator upper cover plate 14.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a vane swing cylinder with good sealing performance comprises a vane swing cylinder main body 3 and a rotary table 6, wherein a stator upper cover plate 14 is fixedly installed at the front end of the vane swing cylinder main body 3, an O-shaped sealing ring is arranged at the joint of the stator upper cover plate 14, the vane swing cylinder main body 3 and a stator lower cover plate 13, a stator lower cover plate 13 is fixedly installed at the rear end of the vane swing cylinder main body 3, an oil cavity 9 is arranged inside the vane swing cylinder main body 3, a reverse oil inlet 2 is fixedly arranged on the upper surface of the left side of the vane swing cylinder main body 3, one end of the reverse oil inlet 2 is fixedly connected with a connecting pipe 1, a flow control valve 8 is fixedly installed at one end of the connecting pipe 1 far away from the reverse oil inlet 2, a forward oil inlet 4 is fixedly arranged on the lower surface of the left side of the vane swing cylinder main body 3, one end of, one side of the rotary table 6 is fixedly provided with a rotating blade 7, the front end and the rear end of the rotating blade 7 are both fixedly provided with connecting plates 11, through the arranged connecting plates 11, when the connecting pipe 1 supplies oil to the reverse oil inlet 2, along with the increase of oil pressure, the left side two ends of the connecting plates 11 are separated, so that the sealing strip 10 at the rear end of the connecting plates 11 is closely attached to the inner wall of the oil cavity 9, oil can be prevented from passing through, the oil pressure is stronger, the sealing effect is better, otherwise, the same is true when the forward oil inlet 4 is filled with oil, thereby the sealing effect can be better improved, when the device is used, the sealing effect can be improved, the connecting plates 11 are formed by connecting the back surfaces of two semicircles, the springs 12 are arranged at the included angle of the two semicircles, the sealing strips 10 are fixedly connected to the opposite sides of, when connecting pipe 1 is reverse oil inlet 2 fuel feeding, the one end that is close to forward oil inlet 4 when the increase along with the oil pressure then is the cavity, thereby spring 12 is taut with connecting plate 11 and rotor blade 7's orientation reduces the frictional force of cavity one end sealing strip 10 and cavity inner wall, thereby prolong the life of sealing strip 10, and can make the one end of non-empty oil cavity 9 accelerate, thereby improve the holistic rotational speed of blade swing jar, when making equipment use, can extend life and improve the rotational speed, the one end clearance fit that blade swing jar main part 3 was kept away from to one side and fixed block 5 that rotor blade 7 was kept away from to carousel 6.

The utility model discloses work flow: during the use, be 2 fuel supplies for reverse oil inlet when connecting pipe 1, along with the increase of oil pressure, the left side both ends of connecting plate 11 are separated, make sealing strip 10 and the oil pocket 9 inner wall of connecting plate 11 rear end closely press close to, can prevent that fluid from passing, the oil pressure is powerful sealed effect also can be better more, otherwise it is also the same when forward oil inlet 4 leads to oil, thereby the sealed effect of improvement that can be better, and, be 2 fuel supplies for reverse oil inlet when connecting pipe 1, the one end that is close to forward oil inlet 4 when the increase along with the oil pressure then is the cavity, thereby spring 12 is taut with connecting plate 11 and rotating vane 7's orientation reduces the frictional force of cavity one end sealing strip 10 and cavity inner wall, thereby the life of extension sealing strip 10, and can make the one end of non-empty oil cavity 9 accelerate, thereby improve the holistic rotational speed of blade.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a blade swing cylinder that leakproofness is good, includes blade swing cylinder main part (3) and carousel (6), its characterized in that: the front end of the blade swing cylinder main body (3) is fixedly provided with a stator upper cover plate (14), the rear end of the blade swing cylinder main body (3) is fixedly provided with a stator lower cover plate (13), an oil cavity (9) is arranged inside the blade swing cylinder main body (3), the left upper surface of the blade swing cylinder main body (3) is fixedly provided with a reverse oil inlet (2), one end of the reverse oil inlet (2) is fixedly connected with a connecting pipe (1), one end of the connecting pipe (1), which is far away from the reverse oil inlet (2), is fixedly provided with a flow control valve (8), the left lower surface of the blade swing cylinder main body (3) is fixedly provided with a forward oil inlet (4), the left inner wall of the blade swing cylinder main body (3) is fixedly provided with a fixed block (5), one side of the rotary table (6) is fixedly, the equal fixed mounting in both ends has connecting plate (11), two around rotor blade (7) the equal fixedly connected with sealing strip (10) in opposite one side of connecting plate (11), two the left and right sides evenly distributed of connecting plate (11) has a plurality of springs (12).

2. The vane oscillating cylinder with good sealing performance as claimed in claim 1, wherein: one side of the rotary disc (6) far away from the rotating blade (7) is in clearance fit with one end of the fixed block (5) far away from the blade swinging cylinder main body (3).

3. The vane oscillating cylinder with good sealing performance as claimed in claim 1, wherein: one end of the positive oil inlet (4) is fixedly connected with a connecting pipe (1).

4. The vane oscillating cylinder with good sealing performance as claimed in claim 1, wherein: and O-shaped sealing rings are arranged at the joints of the upper stator cover plate (14), the blade swing cylinder main body (3) and the lower stator cover plate (13).

5. The vane oscillating cylinder with good sealing performance as claimed in claim 1, wherein: the connecting plate (11) is formed by connecting the back surfaces of two semicircles, and the spring (12) is arranged at the included angle of the two semicircles.