High-sealing-performance electric actuator and sealing piece of high-sealing-performance electric actuator

Abstract

The utility model relates to the field of actuators, and discloses a high-sealing-performance electric actuator and a sealing piece of the high-sealing-performance electric actuator. The high-sealing-performance electric actuator comprises an actuator body (1) and a sealing mechanism, and the sealing mechanism is arranged in the actuator body (1). The actuator body (1) is provided with a main shell (2) and a top shell (3) detachably fixed to the main shell (2), and the top face of the main shell (2) is provided with an opening matched with the top shell (3). The sealing mechanism (6) comprises a sealing support (4) arranged in the main shell (2) and a sealing piece (5) arranged on the top of the sealing support (4). The sealing element (5) is consistent with the opening of the top surface of the main shell (2) in shape, and the sealing element (5) is arranged between the main shell (2) and the top shell (3). According to the high-sealing-performance electric actuator and the sealing piece of the high-sealing-performance electric actuator, the shell is divided into the two parts, later maintenance and repair of the electric actuator are facilitated, the applicability of the electric actuator is improved, and the two parts of the shell pass through the sealing mechanism, so that the sealing performance of the interior of the electric actuator is ensured.

Description

Technical Field

[0001] The utility model relates to the field of actuators, in particular to a high-sealing electric actuator and a sealing element thereof. Background Art

[0002] The actuator is an essential and important part of the automatic control system. Its function is to receive the control signal sent by the controller, change the size of the controlled medium, and thus maintain the controlled variable at the required value or within a certain range. Actuators can be divided into three categories according to their energy form: pneumatic, hydraulic, and electric.

[0003] Electric actuators are a commonly used actuator in industrial automation control. Their function is to receive instructions and signals from the electrical control cabinet and drive the corresponding mechanism to move. There are many types of electric actuators, which can be divided into position type, rectangular coordinate type, angle type, linear type and stepper motor type according to different application scenarios and requirements.

[0004] The existing electric actuator has the disadvantage of one end when in use. When in use, the existing electric actuator usually includes an upper shell and a lower shell, the upper shell and the lower shell are detachably connected by bolts, and a sealing ring is arranged between the upper shell and the lower shell. The sealing ring of the above-mentioned high-sealing electric actuator has a small contact area with the upper shell and the lower shell, and the sealing performance is poor and the sealing ring structure stability is poor, which cannot meet people's needs. Therefore, we propose an electric actuator with high sealing performance

[0005] When an electric actuator is used for a control valve, its sealing performance is required to be relatively high. However, the sealing performance of the output shaft end of the existing electric actuator is relatively poor and liquid can easily penetrate into it, which can easily cause the electric actuator to malfunction. Utility Model Content

[0006] In order to overcome the defects of the prior art, the utility model provides a high-sealing electric actuator and a sealing member thereof, which increases the applicability of the electric actuator and ensures the sealing inside the electric actuator through a sealing mechanism.

[0007] To achieve the above-mentioned purpose, the utility model provides a high-sealing electric actuator, comprising: an actuator body (1) and a sealing mechanism, wherein the sealing mechanism is arranged inside the actuator body (1); the actuator body (1) is provided with a main housing (2) and a top housing (3) detachably fixed to the main housing (2), and the top surface of the main housing (2) is provided with an opening that fits with the top housing (3);

[0008] The sealing mechanism (6) comprises a sealing bracket (4) arranged inside the main shell (2) and a sealing member (5) arranged on the top of the sealing bracket (4); the sealing member (5) has the same opening shape as the top surface of the main shell (2), and the sealing member (5) is arranged between the main shell (2) and the top shell (3).

[0009] Furthermore, the sealing bracket (4) comprises a bottom plate (41), a support plate (42) and a top support ring (43); the support plate (42) comprises a first end and a second end; the first end of the support plate (42) is fixed to the bottom plate (41), and the second end of the support plate (42) is fixed to the top support ring (43).

[0010] Furthermore, the number of the support plates (42) is 2-12.

[0011] Furthermore, the fixing angle between the support plate (42) and the bottom plate (41) is 60-120°.

[0012] Furthermore, the fixing angle between the support plate (42) and the top support ring (43) is 60-120°.

[0013] The utility model discloses a high-sealing electric actuator, which splits a shell into two parts, which is convenient for later maintenance and repair of the electric actuator and increases the applicability of the electric actuator. The two parts of the shell are connected by a sealing mechanism to ensure the sealing inside the electric actuator.

[0014] A sealing component comprises a sealing outer layer (51), a filling layer (52) and a sealing backbone strip (53), wherein the sealing outer layer (51) is provided with a sealing backbone strip (53), and the filling layer (52) is provided between the sealing outer layer (51) and the sealing backbone strip (53).

[0015] Furthermore, the number of sealing backbone strips (53) provided in the sealing outer layer (51) is 1-8.

[0016] Furthermore, the sealing outer layer (51) and the sealing backbone strip (53) are both made of rubber.

[0017] Furthermore, the filling layer (52) is an air entraining agent or an expansion agent.

[0018] Beneficial effects:

[0019] The utility model discloses a sealing component which adopts a multi-layer sealing structure and can effectively prolong the service life of the sealing component. When the outer layer is damaged, the overall sealing performance can still be ensured by relying on the internal multi-layer structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a structural schematic diagram of a high-sealing electric actuator of the utility model;

[0021] Figure 2 This is a schematic diagram of the explosion structure of a high-sealing electric actuator of the utility model;

[0022] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle sealing bracket;

[0023] Figure 4 This is a structural schematic diagram of a sealing member embodiment 1 of the utility model;

[0024] Figure 5 This is a structural schematic diagram of a second embodiment of a sealing member of the utility model;

[0025] Figure 6 It is a structural schematic diagram of a third embodiment of a sealing member of the utility model. DETAILED DESCRIPTION

[0026] The principle and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present invention, and are not intended to limit the scope of the present invention in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0027] According to the implementation of the utility model, a high-sealing electric actuator and a seal thereof are proposed, which increases the applicability of the electric actuator and ensures the sealing inside the electric actuator through the sealing mechanism.

[0028] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0029] A high-sealing electric actuator comprises: an actuator body 1 and a sealing mechanism, wherein the sealing mechanism is arranged inside the actuator body 1; the actuator body 1 is provided with a main housing 2 and a top housing 3 detachably fixed to the main housing 2, and the top surface of the main housing 2 is provided with an opening which fits with the top housing 3;

[0030] The sealing mechanism 6 includes a sealing bracket 4 arranged inside the main shell 2 and a sealing member 5 arranged on the top of the sealing bracket 4; the sealing member 5 is consistent with the opening shape of the top surface of the main shell 2, and the sealing member 5 is arranged between the main shell 2 and the top shell 3.

[0031] The sealing bracket 4 includes a bottom plate 41 , a support plate 42 and a top support ring 43 . The support plate 42 includes a first end and a second end. The first end of the support plate 42 is fixed to the bottom plate 41 , and the second end of the support plate 42 is fixed to the top support ring 43 .

[0032] The number of the support plates 42 is 2-12.

[0033] The fixing angle between the support plate 42 and the bottom plate 41 is 60-120°.

[0034] The fixing angle between the support plate 42 and the top support ring 43 is 60-120°.

[0035] Example

[0036] like Figure 1 , Figure 2 As shown, a high-sealing electric actuator comprises: an actuator body 1 and a sealing mechanism, wherein the sealing mechanism is arranged inside the actuator body 1; the actuator body 1 is provided with a main housing 2 and a top housing 3 detachably fixed to the main housing 2, and the top surface of the main housing 2 is provided with an opening which fits with the top housing 3;

[0037] The sealing mechanism 6 includes a sealing bracket 4 arranged inside the main shell 2 and a sealing member 5 arranged on the top of the sealing bracket 4; the sealing member 5 is consistent with the opening shape of the top surface of the main shell 2, and the sealing member 5 is arranged between the main shell 2 and the top shell 3.

[0038] like Figure 3 As shown, the sealing bracket 4 includes a bottom plate 41 , a support plate 42 and a top support ring 43 , the support plate 42 includes a first end and a second end, the first end of the support plate 42 is fixed to the bottom plate 41 , and the second end of the support plate 42 is fixed to the top support ring 43 .

[0039] The number of the support plates 42 is two.

[0040] The fixing angle between the support plate 42 and the bottom plate 41 is 90°.

[0041] The fixing angle between the support plate 42 and the top support ring 43 is 90°.

[0042] The utility model discloses a high-sealing electric actuator, which splits a shell into two parts, which is convenient for later maintenance and repair of the electric actuator and increases the applicability of the electric actuator. The two parts of the shell are connected by a sealing mechanism to ensure the sealing inside the electric actuator.

[0043] A sealing element comprises a sealing outer layer 51, a filling layer 52 and a sealing backbone strip 53. The sealing backbone strip 53 is arranged inside the sealing outer layer 51, and the filling layer 52 is arranged between the sealing outer layer 51 and the sealing backbone strip 53.

[0044] The sealing outer layer 51 is provided with 1-8 sealing backbone strips 53 .

[0045] The sealing outer layer 51 and the sealing backbone strip 53 are both made of rubber.

[0046] The filling layer 52 is an air entraining agent or an expansion agent.

[0047] Embodiment 1

[0048] like Figure 4 As shown, a sealing component comprises a sealing outer layer 51 , a filling layer 52 and a sealing backbone strip 53 . The sealing backbone strip 53 is arranged inside the sealing outer layer 51 , and the filling layer 52 is arranged between the sealing outer layer 51 and the sealing backbone strip 53 .

[0049] The sealing outer layer 51 is provided with one sealing backbone strip 53 .

[0050] The sealing outer layer 51 and the sealing backbone strip 53 are both made of rubber.

[0051] The filling layer 52 is an air entraining agent.

[0052] Embodiment 2

[0053] like Figure 5 As shown, a sealing component comprises a sealing outer layer 51 , a filling layer 52 and a sealing backbone strip 53 . The sealing backbone strip 53 is arranged inside the sealing outer layer 51 , and the filling layer 52 is arranged between the sealing outer layer 51 and the sealing backbone strip 53 .

[0054] Three sealing backbone strips 53 are arranged in the sealing outer layer 51 .

[0055] The sealing outer layer 51 and the sealing backbone strip 53 are both made of rubber.

[0056] The filling layer 52 is a swelling agent.

[0057] Embodiment 3

[0058] like Figure 6 As shown, a sealing component comprises a sealing outer layer 51 , a filling layer 52 and a sealing backbone strip 53 . The sealing backbone strip 53 is arranged inside the sealing outer layer 51 , and the filling layer 52 is arranged between the sealing outer layer 51 and the sealing backbone strip 53 .

[0059] The sealing outer layer 51 is provided with seven sealing backbone strips 53 .

[0060] The sealing outer layer 51 and the sealing backbone strip 53 are both made of rubber.

[0061] The filling layer 52 is a swelling agent.

[0062] The utility model discloses a sealing component which adopts a multi-layer sealing structure and can effectively prolong the service life of the sealing component. When the outer layer is damaged, the overall sealing performance can still be ensured by relying on the internal multi-layer structure.

[0063] Although the spirit and principle of the present invention have been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined to benefit, and such division is only for the convenience of expression. The present invention is intended to cover various modifications and equivalent arrangements contained in the spirit and scope of the attached claims.

[0064] Regarding the limitation of the protection scope of the utility model, technical personnel in the relevant field should understand that, based on the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the protection scope of the utility model.

Claims

1. A high-sealing electric actuator, characterized in that: The invention comprises: an actuator body (1) and a sealing mechanism, wherein the sealing mechanism is arranged inside the actuator body (1); the actuator body (1) is provided with a main shell (2) and a top shell (3) detachably fixed to the main shell (2), and the top surface of the main shell (2) is provided with an opening which fits with the top shell (3); The sealing mechanism (6) comprises a sealing bracket (4) arranged inside the main shell (2) and a sealing member (5) arranged on the top of the sealing bracket (4); the sealing member (5) has the same opening shape as the top surface of the main shell (2), and the sealing member (5) is arranged between the main shell (2) and the top shell (3).

2. A high-sealing electric actuator according to claim 1, characterized in that: The sealing bracket (4) comprises a bottom plate (41), a support plate (42) and a top support ring (43); the support plate (42) comprises a first end and a second end; the first end of the support plate (42) is fixed to the bottom plate (41), and the second end of the support plate (42) is fixed to the top support ring (43).

3. A high-sealing electric actuator according to claim 2, characterized in that: The number of the support plates (42) is 2-12.

4. The high-sealing electric actuator according to claim 2, characterized in that: The fixing angle between the support plate (42) and the bottom plate (41) is 60-120°.

5. The high-sealing electric actuator according to claim 2, characterized in that: The fixing angle between the support plate (42) and the top support ring (43) is 60-120°.

6. A sealing member, characterized in that: include: A sealing outer layer (51), a filling layer (52) and a sealing backbone strip (53); the sealing backbone strip (53) is arranged inside the sealing outer layer (51), and the filling layer (52) is arranged between the sealing outer layer (51) and the sealing backbone strip (53).

7. A sealing member according to claim 6, characterized in that: The sealing outer layer (51) is provided with 1-8 sealing backbone strips (53).

8. A sealing member according to claim 6, characterized in that: The sealing outer layer (51) and the sealing backbone strip (53) are both made of rubber.

9. A sealing member according to claim 6, characterized in that: The filling layer (52) is an air entraining agent or an expansion agent.

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