A mounting device for a multi-rotation electric actuator

Abstract

The present application relates to electric actuator technical field, specifically a kind of installation device of multi-rotation electric actuator, including actuator and valve, the actuator has a bearing end, the outer wall of bearing end is fixedly installed with assembly cover, the outer wall of valve is integrally formed with pedestal, the opening of pedestal can be inserted into assembly with bearing end, when the actuator and valve butt joint, the part of bearing end that is inserted into valve is designed with pressure encapsulation, and is extruded when butt joint, the pressure encapsulation after deformation will produce tiny wrinkle or gap between pedestal, the inner wall of pedestal is installed with the filling mechanism that injects supplementary agent to wrinkle place.The present application effectively improves the sealing effect of pressure encapsulation, and can inject supplementary agent into deformation gap or wrinkle to improve filling degree when the actuator and valve butt joint.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric actuators, in particular to a mounting device of a multi-rotation electric actuator. BACKGROUND

[0002] The multi-rotation electric actuator is suitable for gate valves and stop valves, and is widely used in fluid output or transfer environments. In actual use, under the influence of fluid pressure, fluid will pass through the joint between the actuator and the valve, causing sealing problems between the valve and the actuator, and leakage, which interferes with the normal operation of the valve and the actuator. SUMMARY

[0003] The present application provides a mounting device of a multi-rotation electric actuator, which effectively improves the sealing effect of the pressure packaging member, and can inject a supplement into the deformation gap or wrinkle when the actuator and the valve are connected to improve the filling degree.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A mounting device of a multi-rotation electric actuator, comprising an actuator and a valve, the actuator has a bearing end, the outer wall of the bearing end is fixedly installed with an assembly cover, the outer wall of the valve is integrally formed with a base, the opening of the base can accommodate the bearing end, when the actuator and the valve are connected, the part of the bearing end inserted into the valve is designed with a pressure packaging body, which is extruded when connected, and a small wrinkle or gap is generated between the deformed pressure packaging body and the base, and a filling mechanism for injecting a supplement into the wrinkle is installed on the inner wall of the base.

[0006] Optionally, a bearing groove is formed in the top of the base towards the valve, the bearing groove is annular, the outer wall of the bearing end is integrally formed with a first step protruding part, the pressure packaging body is installed below the first step protruding part, a piston assembly is formed between the first step protruding part and the bearing groove, when the actuator and the valve are connected, the first step protruding part extrudes and deforms the pressure packaging body to fill and isolate the connection between the inside of the valve and the bearing end.

[0007] Optionally, the pressure packaging body comprises a sealing sleeve attached to the bottom of the first step protruding part, the inner diameter of the sealing sleeve is larger than the inner diameter of the bearing groove, the outer diameter of the sealing sleeve is equal to the outer diameter of the bearing groove, and the sealing sleeve completely covers the inner bottom of the bearing groove.

[0008] Optionally, the outer wall of the bearing end below the first step protruding part is integrally formed with a second step protruding part, the outer diameter of the second step protruding part is smaller than the inner diameter of the base, the sealing sleeve is integrally extended downward in the shape of a rubber sleeve, and the spacing between the outer wall of the second step protruding part and the inner wall of the base is smaller than the thickness of the sealing sleeve.

[0009] Optionally, the stepped ring table or circular table is formed between the bottom of the bearing end, the first step protruding part and the second step protruding part, and the sealing sleeve in the form of rubber sleeve is fitted on the ring table or circular table.

[0010] Optionally, the pressure package comprises a gas storage bag mounted on the bearing groove, compressed gas is stored in the gas storage bag, the outer wall of the bearing groove is wrapped with a rubber layer, the annular flange is mounted on the annular bottom of the first step protruding part, and the flange is pressed into the top of the gas storage bag when the actuator is connected with the valve, and the gas storage bag is deformed and extended outward.

[0011] Optionally, the outer wall of the flange is provided with a rounded corner design, and the part of the flange in contact with the gas storage bag is subjected to surface smoothing treatment.

[0012] Optionally, the outer wall of the base is provided with a detection groove communicated with the bearing groove, a feedback indicating rod is slidingly mounted in the detection groove, the end of the feedback indicating rod close to the gas storage bag has a larger receiving area, the other end of the feedback indicating rod is retained in the detection groove, and the feedback indicating rod will displace outward when the gas storage bag is damaged and leaks.

[0013] Optionally, the filling mechanism comprises a plurality of storage openings provided on the inner wall of the bearing groove, the storage openings are arranged in an annular array, capsules are inserted into the storage openings, the supplements are stored in the capsules, and part of the outer wall of the capsules extends into the bearing groove, and the deformation of the pressure package will cause the rupture of the capsules.

[0014] Optionally, the height of the first step protruding part is greater than the depth of the bearing groove.

[0015] Optionally, the top of the base is provided with an assembly threaded hole, the assembly cover is provided with a penetrating locking hole, a double-headed bolt is assembled between the base and the assembly cover, and a nut for locking the double-headed bolt is further provided.

[0016] Optionally, the gap between the base and the assembly cover can be filled with a shock-absorbing ring after the bearing end is connected with the valve.

[0017] The application provides a mounting device of a multi-rotation electric actuator, which utilizes a bearing end of the actuator, the bearing end in the application is an output device of the actuator, which mainly serves as a bearing part of an output shaft of the actuator, therefore, during assembly, a pressure package is mounted by extending the bearing end into the interior of a valve, so that the sealing position is shifted downward, and the sealing element is prevented from being exposed, meanwhile, a filling mechanism is designed, when the actuator and the valve are successfully assembled through butt joint, the filling mechanism can fill a supplement into a gap or a wrinkle generated by deformation of the pressure package, so that the supplement can fill the wrinkle in the form of liquid, the supplement can be a colloid or a solidifiable liquid according to requirements, so that the gap at the butt joint of the sealing is supplemented, and the sealing capacity is improved, in addition, the supplement method can also compensate the butt joint part with low assembly precision, and improve assembly fitting degree.

[0018] In addition, the capsule is set to have the property of being broken by extrusion, when the supplement in the capsule is in a high-pressure state, it means that the capsule is in an inflation state, when the capsule meets strong pressure of the pressure package, the capsule is broken to fill the wrinkle. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the application after the actuator and the valve are butt jointed;

[0020] Figure 2 It is a three-dimensional structure schematic view of the application after the bearing end and the valve are butt jointed;

[0021] Figure 3 It is a right view structure schematic view of the application; Figure 2

[0022] Figure 4 It is a disassembled structure schematic view of the bearing end and parts thereof in the application;

[0023] Figure 5 It is a structure schematic view of the application along A-A in the application; Figure 3

[0024] Figure 6 It is a structure schematic view of a sealing sleeve in the form of a rubber sleeve in the first embodiment of the application;

[0025] Figure 7 It is an internal structure schematic view of the bearing end and the valve when they are butt jointed;

[0026] Figure 8 It is a structure schematic view of the pressure package in the second embodiment of the application.

[0027] ​​Fig. 1, actuator; 2, bearing end; 3, assembly cover; 4, double head bolt; 5, valve; 6, base; 7, sealing sleeve; 8, first step protruding part; 9, second step protruding part; 11, capsule; 12, air storage bag; 13, feedback schematic rod; 14, bearing groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] Please refer to Figures 1 to 8 The present application provides a technical solution: a mounting device of a multi-rotation electric actuator, comprising an actuator 1 and a valve 5, the actuator 1 has a bearing end 2, the outer wall of the bearing end 2 is fixedly installed with an assembly cover 3, the outer wall of the valve 5 is integrally formed with a base 6, the opening of the base 6 can accommodate the bearing end 2, when the actuator 1 and the valve 5 are connected, the part of the bearing end 2 inserted into the valve 5 is designed as a pressure packaging body, which is extruded when connected, and a small wrinkle or gap is generated between the deformed pressure packaging body and the base 6, and the inner wall of the base 6 is installed with a filling mechanism for injecting a supplement into the wrinkle.

[0030] In actual use, the problem of water seepage between the actuator 1 and the valve 5 needs to be concerned, which affects the flow and / or flow rate of the control liquid, and the sealing level is poor in most cases, the main reason of which is that the sealing element is difficult to effectively stretch or extend outward when being extruded, and it is difficult to effectively fill the connection part, which leads to the problem of gap in the sealing element, and long-term use will cause sealing failure and water seepage.

[0031] In the present application, the bearing end 2 of the actuator 1 is used, which is the output device of the actuator 1 and mainly serves as the bearing part of the output shaft of the actuator 1, therefore, when assembling, a pressure packaging part is installed in the part of the bearing end 2 inserted into the valve 5, the sealing position is moved downward, and the sealing element is prevented from being exposed, at the same time, when the actuator 1 and the valve 5 are successfully connected and assembled, the filling mechanism can fill the supplement into the gap or wrinkle generated by the deformation of the pressure packaging part, so that the supplement can fill the wrinkle in the form of liquid, and the supplement can be selected as a colloid or a solidifiable liquid according to the requirement, so as to supplement the gap of the sealing connection part and improve the sealing capacity, and secondly, the supplement method can also compensate for the low assembly precision of the connection part and improve the assembly fitting degree.

[0032] In one of the more preferred embodiments, the top of the base 6 is provided with a bearing groove 14 in the valve 5, the bearing groove 14 is annular, the outer wall of the bearing end 2 is integrally formed with a first step protrusion 8, the pressure packaging body is installed below the first step protrusion 8, and the first step protrusion 8 and the bearing groove 14 form a piston assembly. When the actuator 1 is connected with the valve 5, the first step protrusion 8 will extrude and deform the pressure packaging body to fill and isolate the connection between the inside of the valve 5 and the bearing end 2. Please refer to Figs. 4 to Figure 7 In this embodiment, by opening the bearing groove 14 inward, the position of the pressure packaging body can be shifted downward, so that the pressure packaging body can be completely covered, and the assembly relationship between the bearing groove 14 and the first step protrusion 8 can better extrude the pressure packaging body, thereby improving the filling capacity of the pressure packaging body.

[0033] Two pressure packaging body embodiments are provided based on the embedded installation of the pressure packaging body embodiment.

[0034] Embodiment one:

[0035] The pressure packaging body includes a sealing sleeve 7 attached to the bottom of the first step protrusion 8, the inner diameter of the sealing sleeve 7 is larger than the inner diameter of the bearing groove 14, the outer diameter of the sealing sleeve 7 is equal to the outer diameter of the bearing groove 14, and the sealing sleeve 7 is completely covered on the inner bottom of the bearing groove 14. Please refer to Figure 5 In this embodiment, by limiting the annular size of the sealing sleeve 7, the sealing sleeve 7 can completely cover the inner bottom of the bearing groove 14, so that when it is compressed, the filling degree can be improved. In addition, the bottom of the first step protrusion 8 can also be better extended on the top of the sealing sleeve 7, so that the sealing sleeve 7 is extended more uniformly, thereby improving the service life of the sealing sleeve 7 and also improving the sealing ability.

[0036] Based on embodiment one, the outer wall of the bearing end 2 below the first step protrusion 8 is integrally formed with a second step protrusion 9, the outer diameter of the second step protrusion 9 is smaller than the inner diameter of the base 6, the sealing sleeve 7 is integrally extended downward in a rubber sleeve shape, and the distance between the outer wall of the second step protrusion 9 and the inner wall of the base 6 is smaller than the thickness of the sealing sleeve 7. Please refer to Figure 6 and the detailed view, by cooperating the second step protrusion 9 with the sealing sleeve 7, the sealing isolation position is further extended downward, and the isolation area is also expanded. In addition, by using the size of the second step protrusion 9, the sealing sleeve 7 can be extended on the inner wall of the base 6, so that the sealing position forms a stepped shape, and the blocking ability is further enhanced.

[0037] Further, in order to facilitate the installation of the sealing sleeve 7, a stepped ring or circular ring is formed between the bottom of the bearing end 2, the first step protruding part 8 and the second step protruding part 9, and the rubber sleeve-shaped sealing sleeve 7 is fitted on the ring or circular ring, which can better form a coating and improve the sealing effect through the fitting mode.

[0038] Embodiment two:

[0039] The pressure package includes the gas storage bag 12 mounted on the bearing groove 14, the inside of the gas storage bag 12 stores compressed gas, the outer wall of the bearing groove 14 is wrapped with a rubber layer, the annular bottom of the first step protruding part 8 is mounted with an annular flange, when the actuator 1 is connected with the valve 5, the flange is pressed into the top of the gas storage bag 12, and the gas storage bag 12 is deformed and extended outward, please refer to Figure 8 and the enlarged detail view, which is different from the first embodiment, the pressing of the flange makes the first step protruding part 8 form a blocking area, which separates the sealing filling of the gas storage bag 12 into two parts, and the deformation of the gas storage bag 12 can effectively fit the bottom of the first step protruding part 8 and the inner bottom of the bearing groove 14, thereby improving the sealing effect.

[0040] Further, in order to improve the service life of the gas storage bag 12 and increase the smoothness of compression, the outer wall of the flange is provided with a rounded corner design, and the part of the flange in contact with the gas storage bag 12 is subjected to surface smoothing treatment.

[0041] Further, the outer wall of the base 6 is provided with a detection groove communicated with the bearing groove 14, and a feedback indicating rod 13 is slidably mounted in the detection groove, the end of the feedback indicating rod 13 close to the gas storage bag 12 has a large receiving area, and the other end of the feedback indicating rod 13 is retained in the inside of the detection groove, when the gas storage bag 12 is damaged and leaks, the feedback indicating rod 13 will displace outward, please refer to Figure 8 and the enlarged detail view, by embedding the feedback indicating rod 13, when the gas storage bag 12 leaks, a part of the high-speed sprayed gas will impact on the end of the feedback indicating rod 13, so that the feedback indicating rod 13 will move outward as a whole, and thus penetrate to the outside of the base 6, which is convenient for the workers to detect and confirm in this state.

[0042] In order to avoid misjudgment, the detection groove can be inclinedly arranged to avoid the random sliding of the feedback indicating rod 13, or the sliding friction of the feedback indicating rod 13 can be increased.

[0043] One of the more preferred embodiments, the filling mechanism includes a plurality of storage openings arranged in an annular array on the inner wall of the bearing groove 14, a plurality of storage openings are inserted into capsules 11, and supplements are stored in the inside of the capsules 11, part of the outer wall of the capsules 11 extends into the bearing groove 14, and when the pressure package deforms, the capsules 11 will be broken, please refer toFigure 6 Figure 8 And its detailed enlarged view, by setting the capsule 11 to be of the nature of extrusion rupture, when the capsule 11 has a high-pressure state of the supplement stored inside, that means the capsule 11 is in an inflated state, when the capsule 11 encounters strong pressure of the pressure package, the capsule 11 will rupture to fill the wrinkles.

[0044] Further, for the selection of the supplement, the supplement can be a gel or liquid, and the supplement can also be designed to have the following properties, for example, the supplement can solidify when it encounters water, or it can react with the rubber material of the pressure package to expand itself to fill the wrinkles or gaps.

[0045] Further, the height of the first-stage protruding part 8 is greater than the depth of the bearing groove 14.

[0046] Further, please refer to Figures 2 to 4 The top of the base 6 is provided with a threaded hole for assembly, and the assembly cover 3 is provided with a through locking hole, and the base 6 and the assembly cover 3 are assembled with a double-headed bolt 4, including a nut for locking the double-headed bolt 4.

[0047] Further, after the bearing end 2 is connected with the valve 5, the gap between the base 6 and the assembly cover 3 can be filled with a shock-absorbing ring.

[0048] With the above structure or components, the sealing effect of the pressure package is effectively improved, and the supplement can be injected into the deformation gap or wrinkle when the actuator 1 is connected with the valve 5 to improve the filling degree.

[0049] The standard parts used in the embodiment can be directly purchased from the market, and the non-standard structural parts according to the description and drawings can also be processed without doubt according to the existing technical knowledge, and the connection mode of each part adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt the conventional models in the existing technology, so the specific description is not made here.

[0050] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mounting device of a multi-rotation electric actuator, comprising an actuator (1) and a valve (5), wherein the actuator (1) has A carrier end (2) characterized by: An assembly cover (3) is fixedly installed on the outer wall of the bearing end (2), and a base (6) is integrally formed on the outer wall of the valve (5), and the opening of the base (6) is used for inserting and assembling the bearing end (2), and when the actuator (1) is connected with the valve (5), the part of the bearing end (2) inserted into the valve (5) is designed as a pressure package, and the pressure package is extruded and deformed when connected, and a small wrinkle or gap is generated between the pressure package and the base (6), and a filling mechanism for injecting a supplement into the wrinkle or gap is installed on the inner wall of the base (6), A bearing groove (14) is formed in the valve (5), the bearing groove (14) is annular, a first step protruding portion (8) is integrally formed on the outer wall of the bearing end (2), the pressure package is installed below the first step protruding portion (8), a piston assembly is formed between the first step protruding portion (8) and the bearing groove (14), and when the actuator (1) is connected with the valve (5), the first step protruding portion (8) extrudes and deforms the pressure package to fill and isolate the connection between the inside of the valve (5) and the bearing end (2), The filling mechanism comprises a plurality of storage openings formed on the inner wall of the bearing groove (14), the storage openings are annularly arranged, a capsule (11) is inserted into the storage opening, the supplement is stored in the capsule (11), and part of the outer wall of the capsule (11) is inserted into the bearing groove (14), and the capsule (11) is broken when the pressure package is deformed.

2. A mounting arrangement for a multi-turn electric actuator according to claim 1, characterised in that: The pressure package comprises a sealing sleeve (7) attached to the bottom of the first step protruding portion (8), the inner diameter of the sealing sleeve (7) is larger than the inner diameter of the bearing groove (14), the outer diameter of the sealing sleeve (7) is equal to the outer diameter of the bearing groove (14), and the sealing sleeve (7) is completely wrapped on the inner bottom of the bearing groove (14).

3. A mounting arrangement for a multi-turn electric actuator according to claim 2, characterised in that: A second step protruding portion (9) is integrally formed on the outer wall of the bearing end (2) below the first step protruding portion (8), the outer diameter of the second step protruding portion (9) is smaller than the inner diameter of the base (6), the sealing sleeve (7) is integrally extended downward in the shape of a rubber sleeve, and the spacing between the outer wall of the second step protruding portion (9) and the inner wall of the base (6) is smaller than the thickness of the sealing sleeve (7).

4. A mounting arrangement for a multi-turn electric actuator according to claim 3, characterised in that: The bottom of the bearing end (2), the first step protruding portion (8) and the second step protruding portion (9) form a stepped annular table or a circular table, and the rubber sleeve-shaped sealing sleeve (7) is attached to the annular table or the circular table.

5. The mounting arrangement for a multi-turn electric actuator of claim 1, wherein: The pressure package comprises a gas storage bag (12) installed on the bearing groove (14), compressed gas is stored in the gas storage bag (12), the outer wall of the bearing groove (14) is wrapped with a rubber layer, an annular flange is installed on the annular bottom of the first step protruding portion (8), and when the actuator (1) is connected with the valve (5), the flange is pressed into the top of the gas storage bag (12) and makes the gas storage bag (12) deform and extend outward.

6. A mounting arrangement for a multi-turn electric actuator according to claim 5, characterised in that: The outer wall of the flange is provided with a rounded corner design, and the part of the flange in contact with the air bag (12) is subjected to surface smoothing treatment.

7. A mounting arrangement for a multi-turn electric actuator according to claim 5, characterised in that: The outer wall of the base (6) is provided with a detection groove communicated with the bearing groove (14), the feedback indicating rod (13) is slidably installed in the detection groove, the end of the feedback indicating rod (13) close to the air bag (12) has a larger receiving area than the other end, and the other end of the feedback indicating rod (13) is retained in the detection groove, when the air bag (12) is damaged and deflated, the feedback indicating rod (13) will displace outward.

8. The mounting arrangement for a multi-turn electric actuator of claim 1, wherein: The height of the first step protruding part (8) is greater than the depth of the bearing groove (14).

9. The mounting device of the multi-rotation electric actuator according to any one of claims 1-8, characterized in that: The top of the base (6) is provided with an assembly threaded hole, the assembly cover (3) is provided with a penetrating locking hole, and the base (6) and the assembly cover (3) are assembled by a double-headed bolt (4) including a nut for locking the double-headed bolt (4).

10. A mounting arrangement for a multi-turn electric actuator according to claim 9, characterised in that: After the bearing end (2) is connected with the valve (5), the gap between the base (6) and the assembly cover (3) can be filled with a shock absorbing ring.

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