CN217736444U

CN217736444U - Actuator

Info

Publication number: CN217736444U
Application number: CN202221793869.2U
Authority: CN
Inventors: 别小林; 徐发坤
Original assignee: Yueqing Xingde Pneumatic Hydraulic Co ltd
Current assignee: Yueqing Xingde Pneumatic Hydraulic Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-04
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses an actuator, which comprises a cylinder body and valve seats arranged at the two ends of the cylinder body; a medium accommodating cavity is formed in the valve seat; the medium accommodating cavity is communicated with the arranged drainage hole, is also communicated with the arranged mounting hole and is internally provided with an adjusting piece; the adjusting piece comprises a fastening piece connected with the mounting hole, a spring is arranged on one surface of the fastening piece facing the mounting hole, and a sealing gasket is arranged at the other end of the spring; through the rotation of the fastener, the sealing gasket slides in the mounting hole, so that the accommodating space of the medium accommodating cavity is adjusted. When one end of the sealing gasket is fixed on the spring and the other end of the spring is fixed on the fastener, the sealing gasket can be driven to move downwards under the action of the spring when the fastener rotates on the mounting hole, the inner space of the medium accommodating cavity is reduced, and the pressure is adjusted. Based on this the utility model discloses be worth promoting and using.

Description

Actuator

Technical Field

The utility model relates to a medium drive equipment technical field specifically is an executor.

Background

When the existing medium driving equipment, such as an air cylinder, a hydraulic cylinder and the like, works, the adjustment of the driving force of the equipment can be realized only through the input of an external medium, so that the adjustment range of the medium driving equipment is limited, and the high-pressure medium is easy to lose in the conveying process, so that the driving pressure of the medium driving equipment is inaccurate, and particularly, the existing equipment cannot realize the automatic adjustment of the pressure according to the pressure fluctuation when the pressure inside a valve seat fluctuates.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an executor 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: an actuator comprises a cylinder body, valve seats arranged at two ends of the cylinder body; a medium accommodating cavity is formed in the valve seat; the medium accommodating cavity is communicated with the drainage hole, is also communicated with the mounting hole and is internally provided with an adjusting piece; the adjusting piece comprises a fastening piece connected with the mounting hole, a spring is arranged on one surface of the fastening piece facing the mounting hole, and a sealing gasket is arranged at the other end of the spring; through the rotation of the fastener, the sealing gasket slides in the mounting hole, so that the accommodating space of the medium accommodating cavity is adjusted.

As the utility model discloses an preferred technical scheme: the adjustment member further includes a valve stem mounted within the fastener; one end of the valve rod is connected with the fastener, and the other end of the valve rod penetrates through the spring and then enters the sealing gasket.

As the utility model discloses an preferred technical scheme: one end of the valve rod is in threaded fit with an internal thread hole formed in the fastener through a screw rod.

As the utility model discloses a preferred technical scheme: still be equipped with on the valve rod sealed gliding slide bar that fills up, just still be equipped with the seal groove on the valve rod.

As the utility model discloses a preferred technical scheme: the fastener through the external screw thread portion that is equipped with mounting hole screw-thread fit, just still be equipped with on the fastener and be convenient for the drive external screw thread portion pivoted drive division.

As the utility model discloses a preferred technical scheme: one end of the fastener facing the spring is also provided with a fixing groove, and a guide hole is also formed in the fixing groove; wherein, the external screw thread portion, the fixed slot and the axis coincidence of guiding hole.

As the utility model discloses a preferred technical scheme: and an annular groove is also arranged between the external thread part and the driving part.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that: 1. when one end of the sealing gasket is fixed on the spring and the other end of the spring is fixed on the fastener, the sealing gasket can be driven to move downwards under the action of the spring when the fastener rotates on the mounting hole, so that the internal space of the medium accommodating cavity is reduced, and the pressure is adjusted;

2. after the pressure adjustment is finished, once the pressure in the medium accommodating cavity fluctuates, the spring has the telescopic capacity, so that the pressure fluctuation can be quickly compensated. Therefore, the internal pressure of the medium accommodating cavity also has the function of automatic compensation so as to solve the adverse effect of pressure fluctuation on equipment.

Drawings

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

FIG. 2 is a schematic sectional view of the main structure of the present invention;

FIG. 3 is a schematic view of the exploded structure of the adjusting member of the present invention;

FIG. 4 is a schematic cross-sectional view of the adjusting member of the present invention;

fig. 5 is a schematic cross-sectional view of the fastener of the present invention.

In the figure: 1. a cylinder body; 2. a valve seat; 3. an adjustment member; 30. a slide bar; 31. a sealing groove; 32. a screw; 33. a fastener; 34. a spring; 35. a gasket; 36. a valve stem; 37. a drive section; 38. a ring groove; 39. an internally threaded bore; 310. a guide hole; 311. fixing grooves; 312. an external threaded portion; 4. a drainage hole; 5. mounting holes; 6. a media containment chamber.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship 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 in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: an actuator comprises a cylinder body 1, valve seats 2 arranged at two ends of the cylinder body 1; a medium accommodating cavity 6 is arranged on the valve seat 2; the medium accommodating cavity 6 is communicated with the drainage hole 4, the medium accommodating cavity 6 is also communicated with the mounting hole 5, and the adjusting piece 3 is arranged in the mounting hole 5; the adjusting piece 3 comprises a fastening piece 33 connected with the mounting hole 5, a spring 34 is arranged on one surface, facing the mounting hole 5, of the fastening piece 33, and a sealing gasket 35 is arranged at the other end of the spring 34; by rotating the fastening member 33, the sealing pad 35 slides in the mounting hole 5 to adjust the accommodating space of the medium accommodating chamber 6.

In summary, when one end of the sealing pad 35 is fixed on the spring 34 and the other end of the spring 34 is fixed on the fastening member 33, when the fastening member 33 rotates on the mounting hole 5, the sealing pad 35 can be forced to move downwards under the action of the spring 34, the internal space of the medium accommodating cavity 6 is reduced, and the pressure adjustment is realized; when the pressure regulation is finished, the spring 34 has the expansion and contraction capability once the pressure in the medium accommodating chamber 6 fluctuates, so that the pressure fluctuation can be quickly compensated. Therefore, the internal pressure of the medium accommodating cavity 6 also has the function of automatic compensation so as to solve the adverse effect of pressure fluctuation on the equipment.

On the basis of the above solution, the adjusting member 3 further comprises a valve stem 36 mounted in the fastening member 33; one end of the valve rod 36 is connected with the fastener 33, and the other end of the valve rod 36 penetrates through the spring 34 and enters the sealing gasket 35. Because the setting of valve rod 36 can guide sealed 35 to slide in the mounting hole 5 orientation, so make sealed 35 and spring 34 can not appear the problem that the axial rocked, and then guarantee sealed 35 to the leakproofness of mounting hole 5 to reduce the medium and leak and lead to the inside problem that pressure unbalance appears of medium holding chamber 6.

Further, one end of the valve rod 36 is in threaded fit with an internal threaded hole 39 formed in the fastener 33 through the screw 32, so that the valve rod 36 can be reliably and fixedly located in the fastener 33, and the valve rod 36 can further improve the guiding capability of the sealing gasket 35; in addition, the valve rod 36 and the fastener 33 can be conveniently assembled and disassembled by means of threaded fit.

Furthermore, still be equipped with on the valve rod 36 the gliding slide bar 30 of sealed pad 35, just still be equipped with the seal groove 31 on the valve rod 36, utilize the sealed pad 35 of slide bar 30 guide to slide, stability when promoting sealed pad 35 and slide, when the sealing washer is installed to the seal groove 31 in, can utilize the sealing washer to seal between the outer wall of valve rod 36 and the fastener 33 inner wall, have on the basis, also make the internal pressure of medium holding chamber 6 not reveal.

On the basis of the above scheme, the fastening member 33 is in threaded fit with the mounting hole 5 through the external thread part 312, and the fastening member 33 is further provided with the driving part 37 which is convenient for driving the external thread part 312 to rotate, so that the position of the fastening member 33 after rotation can be kept stable due to the adoption of the threaded fit mode, and the problem that the internal pressure of the medium accommodating cavity 6 is easily unbalanced or leaked due to unstable position of the fastening member 33 is avoided; while the provision of the driver 37 in turn facilitates the tightening of the fastener 33 to the valve seat 2.

Further, since the end of the fastening member 33 facing the spring 34 is further provided with a fixing groove 311, when the spring 34 is inserted into the fixing groove 311, the stability of the end of the spring 34 can be ensured; meanwhile, a guide hole 310 is formed in the fixing groove 311; the guiding hole 310 is provided, so that one end of the valve rod 36 is conveniently contacted with the sealing gasket 35 on one side, and the inner wall of the guiding hole is conveniently contacted with the sealing ring on the sealing groove 31, and the sealing performance between the valve rod 36 and the inner wall of the fastening piece 33 is further enhanced. The central axes of the external thread portion 312, the fixing groove 311, and the guide hole 310 are aligned.

Further, a ring groove 38 is formed between the external thread portion 312 and the driving portion 37. Therefore, when the sealing ring is installed in the annular groove 38, the fastening member 33 can be reliably sealed with the installation hole 5.

When the medium accommodating cavity 6 accommodates an air source, the actuator can be used as an air cylinder; when the medium accommodating chamber 6 accommodates hydraulic oil, the actuator can be used as a hydraulic ram.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. An actuator, characterized by: comprises a cylinder body (1) and valve seats (2) arranged at two ends of the cylinder body (1);

a medium accommodating cavity (6) is arranged on the valve seat (2); the medium accommodating cavity (6) is communicated with the drainage hole (4), the medium accommodating cavity (6) is also communicated with the mounting hole (5), and the adjusting piece (3) is arranged in the mounting hole (5);

the adjusting piece (3) comprises a fastening piece (33) connected with the mounting hole (5), a spring (34) is arranged on one surface, facing the mounting hole (5), of the fastening piece (33), and a sealing gasket (35) is arranged at the other end of the spring (34);

the sealing gasket (35) slides in the mounting hole (5) through the rotation of the fastening piece (33) so as to adjust the accommodating space of the medium accommodating cavity (6).

2. An actuator according to claim 1, wherein: the adjustment member (3) further comprises a valve stem (36) mounted in a fastener (33); one end of the valve rod (36) is connected with the fastening piece (33), and the other end of the valve rod (36) penetrates through the spring (34) and then enters the sealing gasket (35).

3. An actuator according to claim 2, wherein: one end of the valve rod (36) is in threaded fit with an internal threaded hole (39) formed in the fastener (33) through a screw (32) formed in the valve rod.

4. An actuator according to claim 3, wherein: the valve rod (36) is further provided with a sliding rod (30) which slides in the sealing gasket (35), and the valve rod (36) is further provided with a sealing groove (31).

5. An actuator according to any of claims 1 to 4, wherein: fastener (33) through external screw thread portion (312) that is equipped with mounting hole (5) screw-thread fit, just still be equipped with on fastener (33) and be convenient for the drive external screw thread portion (312) pivoted drive division (37).

6. An actuator according to claim 5, wherein: a fixing groove (311) is further formed in one end, facing the spring (34), of the fastening piece (33), and a guide hole (310) is further formed in the fixing groove (311); wherein central axes of the external thread part (312), the fixing groove (311), and the guide hole (310) are overlapped.

7. An actuator according to claim 6, wherein: and a ring groove (38) is also arranged between the external thread part (312) and the driving part (37).