CN220653083U

CN220653083U - Shell sealing structure for electric actuator

Info

Publication number: CN220653083U
Application number: CN202322316167.6U
Authority: CN
Inventors: 刘云香
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-22
Anticipated expiration: 2033-08-28

Abstract

The application discloses shell seal structure for electric actuator relates to electric actuator technical field, include: the lower electric actuator body and the actuator motor casing, the cover is equipped with the connecting cylinder on the output of lower electric actuator body, is equipped with the connecting seat on the actuator motor casing, is equipped with the bulge loop on the connecting seat and is connected with the locking mechanical system of connecting cylinder, is equipped with first seal assembly between the face that connecting seat and connecting cylinder laminate mutually, and the bulge loop is installed with the hole cooperation of connecting cylinder, and is equipped with second seal assembly between bulge loop and the inner wall of connecting cylinder. The locking mechanical system of this application is convenient for dismouting executor motor casing is equipped with first seal assembly between connecting seat and the connecting cylinder, is equipped with second seal assembly between bulge loop and the inner wall of connecting cylinder, through the cooperation of first seal assembly and second seal assembly, has improved holistic leakproofness, uses more reliably.

Description

Shell sealing structure for electric actuator

Technical Field

The application relates to the technical field of electric actuators, in particular to a shell sealing structure for an electric actuator.

Background

An electric actuator is a driving device capable of providing linear or rotary motion, which utilizes a certain driving energy source and works under the action of a certain control signal, the actuating mechanism uses liquid, gas, electric power or other energy sources and converts the liquid, gas, electric power or other energy sources into driving action through a motor, a cylinder or other devices, the basic types of the electric actuator are three driving modes of partial revolution, multiple revolution and straight stroke, the basic actuating mechanism is used for driving a valve to a full-opening or full-closing position, and the actuating mechanism used for controlling the valve can accurately drive the valve to any position.

The sealing mode of the output shaft end of the electric actuator in the current market is single, the sealing effect is poor, and because the motor can vibrate in the use process, the sealing element is easy to separate from the original installation position, so that liquid or gas overflows in a large amount from the joint, and the electric actuator cannot work normally.

Disclosure of Invention

In view of the above, the present application provides a housing sealing structure for an electric actuator, so as to solve the above technical problems.

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

a housing seal arrangement for an electric actuator, comprising: the electric actuator comprises a lower electric actuator body and an actuator motor shell, wherein a connecting cylinder is sleeved at the output end of the lower electric actuator body, a connecting seat is arranged on the actuator motor shell, a convex ring and a locking mechanism connected with the connecting cylinder are arranged on the connecting seat, a first sealing component is arranged between the connecting seat and the surface, which is attached to the connecting cylinder, of the connecting seat, the convex ring is in sliding fit with the inner wall of the connecting cylinder, and a second sealing component is arranged between the convex ring and the inner wall of the connecting cylinder.

The connecting seat is provided with a mounting groove, the locking mechanism comprises a pressing rod which is arranged on the mounting groove in a sliding manner along the radial direction, a cross rod is arranged on the pressing rod, at least one protruding rod is arranged on the cross rod, the inner wall of the connecting cylinder is provided with a clamping groove corresponding to the protruding rod, and a compression spring which enables the protruding rod to be inserted into the corresponding clamping groove is arranged in the mounting groove.

The installation groove is internally provided with a guide rod, and the inner end of the compression bar is provided with a movable groove which is in sliding fit with the guide rod.

The periphery of the convex ring is provided with an annular convex block, a first sealing groove is formed in the inner wall of the connecting cylinder, and a sealing ring which is in contact with the annular convex block is arranged in the first sealing groove.

The first sealing assembly comprises a ring fixing part and a ring sealing part which are connected with each other, a second sealing groove is formed in the side face, close to the connecting cylinder, of the connecting seat, the ring fixing part is connected with the second sealing groove in a matched mode, and the ring sealing part is in contact with the connecting cylinder.

The second sealing component comprises a sealing element and a pressing block, wherein the pressing block is connected with the connecting cylinder, and the pressing block enables the sealing element to be tightly attached to the inner wall of the connecting cylinder and the convex ring through pressing the sealing element.

Be equipped with the recess on the inner wall of connecting cylinder, the bulge loop has the arc terminal surface, the sealing member is including the straight portion, the portion of bending and the arc portion that connect gradually, support the briquetting through first screw with the recess connection and with straight portion is impressed in the recess, it has the inclined plane portion to support the briquetting, inclined plane portion with the outer cambered surface of arc portion is inconsistent so that the intrados of arc portion with the arc terminal surface is inconsistent.

And a sealing ring is further arranged between the convex ring and the inner wall of the connecting cylinder, and the sealing ring is in contact with the annular convex block.

From the above technical solution, the advantages of the present utility model are:

1. this application is equipped with the connecting cylinder on the output of electric actuator body down, is equipped with the connecting seat on the executor motor casing, is equipped with bulge loop and locking mechanical system on the connecting seat, and locking mechanical system is convenient for dismouting executor motor casing, is equipped with first seal assembly between connecting seat and the connecting cylinder, is equipped with second seal assembly between bulge loop and the inner wall of connecting cylinder, through the cooperation of first seal assembly and second seal assembly, has improved holistic leakproofness, and sealed effectual is difficult for receiving the influence of vibrations, uses more reliably.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application.

Fig. 1 is a schematic structural diagram of the present application.

Fig. 2 is a partial enlarged view at a in fig. 1.

Fig. 3 is a partial enlarged view at B in fig. 2.

Fig. 4 is a partial enlarged view at C in fig. 2.

Fig. 5 is a partial enlarged view at D in fig. 2.

Fig. 6 is a schematic structural view of the seal of the present application.

Reference numerals illustrate: the upper electric actuator body 1, the lower electric actuator body 2, the base 3, the connecting cylinder 4, the clamping groove 41, the first seal groove 42, the groove 43, the connecting seat 5, the mounting groove 51, the movable hole 511, the second seal groove 512, the convex ring 52, the accommodating groove 521, the annular projection 522, the actuator motor housing 6, the locking mechanism 7, the pressing rod 71, the movable groove 711, the limiting block 72, the guide rod 73, the compression spring 74, the cross rod 75, the convex rod 76, the seal ring 8, the first seal assembly 9, the ring fixing portion 91, the ring seal portion 92, the second seal assembly 10, the seal 101, the flat portion 1011, the bent portion 1012, the arc portion 1013, the pressing block 102, the inclined surface portion 1021, the first screw 103, the second screw 104, and the seal ring 11.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail with reference to the embodiments and the accompanying drawings. The exemplary embodiments of the present application and their descriptions are used herein to explain the present application, but are not intended to be limiting of the present application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the connection in which the directional indicator is correspondingly changed may be a direct connection or an indirect connection.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1 to 6, as shown in fig. 1, the present embodiment provides a housing sealing structure for an electric actuator, including a lower electric actuator body 2 and an actuator motor housing 6, a connecting cylinder 4 is sleeved on an output end of the lower electric actuator body 2, a connecting seat 5 is provided on the actuator motor housing 6, a convex ring 52 and a locking mechanism 7 connected with the connecting cylinder 4 are provided on the connecting seat 5, a first sealing component 9 is provided between a surface of the connecting seat 5 and a surface of the connecting cylinder 4, the convex ring 52 is mounted in cooperation with an inner hole of the connecting cylinder 4, and a second sealing component 10 is provided between the convex ring 52 and an inner wall of the connecting cylinder 4.

Specifically, the shell sealing structure for the electric actuator further comprises a base 3 and an upper electric actuator body 1 matched with the lower electric actuator body 2, wherein the lower electric actuator body 2 is arranged on the base 3, the detachable connection between the connecting cylinder 4 and the connecting seat 5 is realized through the locking mechanism 7, and the connecting seat 5 is arranged on the actuator motor shell 6, so that the installation of the actuator motor shell 6 is realized, and the assembly and the disassembly of the actuator motor shell 6 are facilitated; the first sealing component 9 and the second sealing component 10 have good sealing effect, the first sealing component 9 and the second sealing component 10 are matched, the overall sealing performance is improved, the sealing effect is good, the influence of vibration is not easy to occur, liquid or gas is prevented from overflowing from the joint, and the use is more reliable.

In an embodiment, referring to fig. 2, the connection seat 5 is provided with a mounting groove 51, the locking mechanism 7 includes a pressing rod 71 slidably mounted on the mounting groove 51 along a radial direction, a cross rod 75 is disposed on the pressing rod 71, at least one protruding rod 76 is disposed on the cross rod 75, a clamping groove 41 corresponding to the protruding rod 76 is disposed on an inner wall of the connection cylinder 4, and a compression spring 74 for inserting the protruding rod 76 into the corresponding clamping groove 41 is disposed in the mounting groove 51.

Specifically, a movable hole 511 is formed in the side wall of the mounting groove 51, a cross rod 75 is arranged in the movable hole 511 in a penetrating manner, a guide rod 73 is arranged in the mounting groove 51, a movable groove 711 which is in sliding fit with the guide rod 73 is formed in the inner end of the pressure rod 71, a compression spring 74 is sleeved on the guide rod 73, the compression spring 74 is located between the pressure rod 71 and the bottom wall of the mounting groove 51, under the action of the elastic force of the compression spring 74, the pressure rod 71 is driven to move towards the outside of the mounting groove 51, the pressure rod 71 is driven to move to drive the cross rod 75 to move, the cross rod 75 is driven to move to drive the protruding rod 76 to move so that the protruding rod 76 is inserted into the corresponding clamping groove 41, and connection between the connecting cylinder 4 and the connecting seat 5 is achieved; when the actuator motor casing 6 needs to be dismantled, pressing the pressure bar 71, compression spring 74 is compressed, the pressure bar 71 moves downwards and drives the cross bar 75 to move, the cross bar 75 moves and drives the convex bar 76 to move so that the convex bar 76 is separated from the corresponding clamping groove 41, the connecting cylinder 4 can be separated from the connecting seat 5, the operation is easy, the disassembly and assembly are convenient, wherein the limiting block 72 is arranged on the inner end of the pressure bar 71 and can be in conflict with the top wall of the mounting groove 51, thereby playing a limiting role on the pressure bar 71, avoiding the pressure bar 71 from being separated from the mounting groove 51 and improving the use stability.

In an embodiment, referring to fig. 3, the outer periphery of the convex ring 52 has an annular protrusion 522, the inner wall of the connecting cylinder 4 is provided with a first sealing groove 42, and a sealing ring 8 abutting against the annular protrusion 522 is disposed in the first sealing groove 42.

Specifically, the annular protrusion 522 forms a receiving groove 521 on the outer peripheral surface of the connecting seat 5, which is in communication with the movable hole 511, and the protruding rod 76 is located in the receiving groove 521, so that the sealing ring 8 plays a role in sealing, and the sealing effect is improved.

In an embodiment, referring to fig. 4, the first sealing assembly 9 includes a ring fixing portion 91 and a ring sealing portion 92 that are connected to each other, a second sealing groove 512 is formed on a side surface of the connecting seat 5, which is close to the connecting cylinder 4, the ring fixing portion 91 is cooperatively connected with the second sealing groove 512, and the ring sealing portion 92 abuts against the connecting cylinder 4.

Specifically, as shown in fig. 4, the width of the ring seal portion 92 is larger than the width of the ring fixing portion 91, and by this arrangement, the contact area of the ring seal portion 92 with the connecting cylinder 4 is increased, with a better sealing effect.

In an embodiment, referring to fig. 2 and 3, a sealing ring 11 is further disposed between the convex ring 52 and the inner wall of the connecting cylinder 4, and the sealing ring 11 abuts against the annular protrusion 522.

Specifically, the hole of connecting cylinder 4 is the shoulder hole, and the one end that is close to connecting seat 5 of shoulder hole is the macropore end, and sealing washer 11 is located between the step of shoulder hole and bulge loop 52 to guaranteed the reliability of sealing washer 11 installation, and be convenient for dismouting sealing washer 11, improved sealed effect through setting up sealing washer 11.

In an embodiment, referring to fig. 5, the second sealing assembly 10 includes a sealing member 101 and a pressing block 102, the pressing block 102 is connected with the connecting cylinder 4, and the pressing block 102 presses the sealing member 101 to make two ends of the sealing member 101 closely fit with an inner wall of the connecting cylinder 4 and the arc end surface respectively, wherein the sealing ring 11 is located between the collar 52 and the second sealing assembly 10, a groove 43 is provided on the inner wall of the connecting cylinder 4, the collar 52 has an arc end surface, referring to fig. 6, the sealing member 101 includes a flat portion 1011, a bent portion 1012 and an arc portion 1013 sequentially connected, the pressing block 102 is connected with the groove 43 by a first screw 103 and presses the flat portion 1011 into the groove 43, the pressing block 102 has a slant surface 1021, and the slant surface 1021 abuts against an outer slant surface of the arc portion 1013 to make an inner slant surface of the arc portion 1013 abut against the arc end surface.

Specifically, the groove 43 is formed in the narrow hole end of the stepped hole, the cantilever end of the straight portion 1011 is provided with a through hole, the first screw 103 sequentially penetrates through the pressing block 102 and the through hole to be connected with the groove 43, one end, close to the bending portion 1012, of the straight portion 1011 is connected with the groove 43 through the second screw 104, through the arrangement, the straight portion 1011 can be tightly attached to the groove 43, and simultaneously, the inclined surface portion 1021 is abutted to the outer arc surface of the arc portion 1013 to enable the inner arc surface of the arc portion 1013 to be tightly attached to the arc end surface, so that a good sealing effect is achieved.

This shell seal structure for electric actuator is equipped with sealing ring 8, first seal assembly 9, second seal assembly 10, sealing washer 11, through setting up the multilayer seal and then have fine sealed effect, be difficult for receiving the influence of vibrations, it is more reliable to use, and easy dismounting, easy operation.

The foregoing description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the embodiment of the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The shell sealing structure for the electric actuator is characterized by comprising a lower electric actuator body (2) and an actuator motor shell (6), wherein a connecting cylinder (4) is sleeved on the output end of the lower electric actuator body (2), a connecting seat (5) is arranged on the actuator motor shell (6), a convex ring (52) and a locking mechanism (7) connected with the connecting cylinder (4) are arranged on the connecting seat (5), a first sealing component (9) is arranged between the surface, which is attached to the connecting cylinder (4), of the connecting seat (5), the convex ring (52) is matched with an inner hole of the connecting cylinder (4), and a second sealing component (10) is arranged between the convex ring (52) and the inner wall of the connecting cylinder (4).

2. The housing seal structure for an electric actuator according to claim 1, wherein the connection base (5) is provided with a mounting groove (51), the locking mechanism (7) comprises a pressing rod (71) slidably mounted in the radial direction on the mounting groove (51), a cross rod (75) is arranged on the pressing rod (71), at least one protruding rod (76) is arranged on the cross rod (75), a clamping groove (41) corresponding to the protruding rod (76) is arranged on the inner wall of the connection cylinder (4), and a compression spring (74) for enabling the protruding rod (76) to be inserted into the corresponding clamping groove (41) is arranged in the mounting groove (51).

3. The housing seal structure for an electric actuator according to claim 2, wherein a guide rod (73) is provided in the mounting groove (51), and a movable groove (711) slidably fitted with the guide rod (73) is provided in an inner end of the pressing rod (71).

4. The housing seal structure for the electric actuator according to claim 2, wherein the outer periphery of the convex ring (52) is provided with an annular projection (522), the inner wall of the connecting cylinder (4) is provided with a first seal groove (42), and a seal ring (8) which is in contact with the annular projection (522) is arranged in the first seal groove (42).

5. The housing seal structure for an electric actuator according to claim 1, wherein the first seal assembly (9) comprises a ring fixing portion (91) and a ring sealing portion (92) which are connected with each other, a second seal groove (512) is formed in a side surface, close to the connecting cylinder (4), of the connecting seat (5), the ring fixing portion (91) is connected with the second seal groove (512) in a matched manner, and the ring sealing portion (92) is abutted to the connecting cylinder (4).

6. The housing seal structure for an electric actuator according to claim 1, wherein the second seal assembly (10) includes a seal member (101) and an abutment block (102), the abutment block (102) is connected with the connecting cylinder (4), and the abutment block (102) closely adheres the seal member (101) to an inner wall of the connecting cylinder (4) and the collar (52) by abutting against the seal member (101).

7. The housing seal structure for an electric actuator according to claim 6, wherein a groove (43) is provided on an inner wall of the connecting cylinder (4), the convex ring (52) has an arc end surface, the seal member (101) includes a flat portion (1011), a bent portion (1012) and an arc portion (1013) which are sequentially connected, the pressing block (102) is connected with the groove (43) by a first screw (103) and presses the flat portion (1011) into the groove (43), the pressing block (102) has a slope portion (1021), and the slope portion (1021) is in contact with an outer arc surface of the arc portion (1013) to make an inner arc surface of the arc portion (1013) in contact with the arc end surface.

8. The housing seal arrangement for an electric actuator according to claim 4, wherein a seal ring (11) is further provided between the collar (52) and the inner wall of the connecting tube (4), and the seal ring (11) abuts against the annular projection (522).