Manual simulation loading device for testing multi-turn electric actuating mechanism

Abstract

The utility model relates to a manual simulation loading device for testing a multi-turn electric actuating mechanism. Relates to an electric actuating mechanism. Comprising a shell part, a locking nut, a push rod nut, a thrust part and a connecting bottom plate, the shell part is provided with a big-end-down stepped hole, a containing groove is formed in the upper portion of the small hole of the shell part, the top of the containing groove is connected with the locking nut, the push rod nut is arranged in the small hole and connected into the locking nut, and the thrust part is connected with the push rod nut. The outer side of the lower portion of the push rod nut is provided with a convex ring, the convex ring is located in the containing groove, the push rod nut is sleeved with a pair of thrust ball bearings, the thrust ball bearings are arranged in the containing groove and located below the locking nut, and the convex ring is located between the thrust ball bearings. The thrust part is arranged in the large hole of the shell part and is positioned above the connecting bottom plate; and the lower end of the shell part is connected with the connecting bottom plate through a hexagon socket cap screw. The device is convenient for loading operation, and is convenient and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric actuator, especially a kind of manual simulation loading device for multi-rotation electric actuator test. BACKGROUND

[0002] After valve electric actuator is designed, it is generally needed to verify whether the performance of actuator meets design requirement, in the test process, load needs to be added to actuator, and execution mechanism test platform generally also has loading function, but test platform contains sensor and other electrical elements, not only high price, and poor tolerance to high temperature, high pressure, irradiation, LOCA and other test conditions.Moreover, in application, it cannot meet the requirement of bidirectional loading, and reliability is low. INVENTION CONTENTS

[0003] The utility model provides a simple structure, convenient and reliable manual simulation loading device for multi-rotation electric actuator test to the above problems.

[0004] The technical scheme of the utility model is as follows: a kind of manual simulation loading device for multi-rotation electric actuator test, including shell component, locking nut, push rod nut, thrust component and connecting bottom plate,

[0005] The shell component has stepped hole of small upper and large lower, the small hole upper portion of the shell component is equipped with accommodating groove, the top of the accommodating groove is connected with locking nut,

[0006] The push rod nut is arranged in small hole and is connected in locking nut,

[0007] The lower outer side of the push rod nut is equipped with convex ring, the convex ring is located in accommodating groove, the push rod nut is sleeved with a pair of thrust ball bearings, a pair of thrust ball bearings are arranged in accommodating groove and below locking nut,

[0008] The convex ring is located between a pair of thrust ball bearings;

[0009] The thrust component is arranged in the large hole of shell component and above connecting bottom plate;

[0010] The lower end of the shell component is connected with connecting bottom plate by internal hexagonal cylindrical head screw.

[0011] The thrust component includes upper disc spring, lower disc spring, push rod, disc spring gland, elastic ring for shaft,

[0012] The upper portion of the push rod is connected with push rod nut by screw thread,

[0013] Upper support ring and lower support ring are arranged on the middle part ring surface of the push rod,

[0014] The upper disc spring, the lower disc spring, the disc spring cover and the elastic retaining ring for shaft are sleeved on the push rod from top to bottom, and the upper disc spring is located above the upper supporting ring,

[0015] The lower disc spring, the disc spring cover and the elastic retaining ring for shaft are located between the upper supporting ring and the lower supporting ring, the disc spring cover is in the shape of a bottle cap with an opening downward, and the elastic retaining ring for shaft and the lower supporting ring are located in the opening of the disc spring cover.

[0016] The lower part of the push rod extends into the perforation of the connecting bottom plate.

[0017] The shell part is connected with the locking nut through threads, and is fastened by the hexagonal flat end set screw.

[0018] The upper end of the shell part is connected with the output flange of the electric actuator through the hexagonal bolt and the nut.

[0019] The connecting bottom plate is connected with the test bench through the connecting screw.

[0020] The compression pad is located in the large hole, and is sleeved on the push rod and located above the upper disc spring.

[0021] In the utility model, the shell part is connected between the electric actuator and the connecting bottom plate, the connecting bottom plate can be connected with the test bench, the locking nut, the push rod nut and the thrust part are arranged in the shell part, loading operation is facilitated, and the utility model is convenient and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below. In the drawings, each part is not necessarily drawn according to the actual proportion.

[0023] Figure 1 It is the structural schematic diagram of the utility model,

[0024] In the drawing, 1 is the shell part, 2 is the hexagonal flat end set screw, 3 is the locking nut, 4 is the push rod nut, 40 is the convex ring, 5 is the hexagonal bolt, 6 is the standard spring washer, 7 is the nut, 8 is the thrust ball bearing, 9 is the compression pad, 101 is the upper disc spring, 102 is the lower disc spring, 11 is the push rod, 12 is the disc spring cover, 13 is the elastic retaining ring for shaft, 14 is the hexagonal cylindrical head screw, 15 is the standard spring washer, 16 is the connecting bottom plate, 160 is the perforation, 17 is the connecting screw, 18 is the connecting screw elastic pad, 19 is the small hole, 20 is the large hole, 21 is the accommodating groove, 22 is the upper supporting ring, and 23 is the lower supporting ring. EMBODIMENT

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this utility model. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are therefore not to be construed as limitations on this utility model. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] The utility model Figure 1 As shown, a manual simulation loading device for testing a multi-turn electric actuator includes a housing component 1, a locking nut 3, a push rod nut 4, a thrust component and a connecting base plate 16.

[0029] The housing component has a stepped hole that is smaller at the top and larger at the bottom. A receiving groove 21 is provided above the small hole 19 of the housing component. The top of the receiving groove 21 is connected to the locking nut 3. The stepped hole includes a small hole 19 and a large hole 20.

[0030] The push rod nut 4 is arranged in the small hole 19 and connected to the locking nut.

[0031] A convex ring 40 is provided on the outer side of the lower part of the push rod nut 4, and the convex ring 40 is located in the receiving groove. A pair of thrust ball bearings 8 are sleeved on the push rod nut, and the pair of thrust ball bearings are located in the receiving groove and below the locking nut.

[0032] The convex ring is located between a pair of thrust ball bearings;

[0033] The thrust member is arranged in the large hole 20 of the shell member and is located above the connecting bottom plate;

[0034] The lower end of the shell part 1 is connected with the connecting bottom plate through an internal hexagonal cylindrical head screw.

[0035] The utility model discloses simple structure mainly by metal spare part constitutes, and the ability of high temperature, high pressure, irradiation, LOCA etc.

[0036] The thrust part includes upper disc spring 101, lower disc spring 102, push rod 11, disc spring gland 12, elastic baffle ring 13 for shaft,

[0037] The upper portion of the push rod 11 is in threaded connection with a push rod nut,

[0038] The middle part annular surface of the push rod 11 is equipped with upper support ring 22 and lower support ring 23,

[0039] The upper disc spring, lower disc spring, disc spring gland and elastic baffle ring for shaft are respectively sleeved on the push rod from top to bottom, and the upper disc spring is located above the upper support ring 22,

[0040] The lower disc spring, disc spring gland and elastic baffle ring for shaft are located between the upper support ring 22 and the lower support ring 23, the disc spring gland 12 is in the shape of bottle cap with opening downward, and the elastic baffle ring for shaft and the lower support ring are located in the opening of the disc spring gland;

[0041] The lower portion of the push rod extends into the perforation 160 of the connecting bottom plate.

[0042] Further include pressing pad 9, the pressing pad is located in the big hole, the pressing pad is sleeved on the push rod and is located above the upper disc spring.

[0043] The housing part 1 is connected to the lock nut 3 through a thread, and then fastened by the hexagonal flat-end set screw 2; the push rod nut 4 is connected to the output shaft of the electric actuator, and the housing part 1 is connected to the output flange of the electric actuator through the hexagonal bolt 5, the standard spring washer 6, and the nut 7; the lower end of the housing part 1 is connected to the connecting base plate 16 through the hexagonal cylindrical head screw 14 and the standard spring washer 15; the connecting base plate 16 is connected to the test bench through the connecting screw 17 and the connecting screw spring washer 18; the two thrust ball bearings 8 are used to bear the thrust in the upper and lower directions; the pressure pad 9, the upper disc spring 101, the lower disc spring 102, the push rod 11, the disc The spring-loaded cover 12 and the shaft elastic retaining ring 13 constitute a thrust component. When the electric actuator rotates clockwise, the push rod nut 4 rotates accordingly, driving the above-mentioned thrust component to move upward. Due to the obstruction of the shell component 1, the entire component cannot move upward. Under the action of the rotational torque, the push rod 11 is subjected to an upward axial force, which will compress the upper disc spring to produce deformation, thereby generating a downward reaction force, and thus generating a counterclockwise counter-torque; when the electric actuator rotates counterclockwise, the push rod nut 4 will produce a movement process opposite to the above, which will compress the lower disc spring group to produce deformation, thereby generating an upward reaction force, and thus generating a clockwise counter-torque.

[0044] The utility model has a simple structure, no electrical components and other plastic parts, and has a strong ability to withstand harsh working conditions; the upper disc spring and the lower disc spring are installed in a stacked manner, which can increase the total displacement and improve the loading accuracy; the symmetrical disc springs can be loaded in both directions.

[0045] Regarding the content disclosed in this case, the following points need to be explained:

[0046] (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design;

[0047] (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to form new embodiments;

[0048] The above are only specific implementation methods disclosed in this case, but the protection scope of this disclosure is not limited thereto. The protection scope disclosed in this case should be based on the protection scope of the claims.

Claims

1. A manual simulation loading device for testing a multi-turn electric actuator, characterized in that: Including shell parts, locking nut, push rod nut, thrust part and connecting base plate, The shell component has a stepped hole that is smaller at the top and larger at the bottom. A receiving groove is provided on the upper portion of the small hole of the shell component. A locking nut is connected to the top of the receiving groove. The push rod nut is arranged in the small hole and connected to the locking nut. A convex ring is provided on the outer side of the lower part of the push rod nut, and the convex ring is located in the accommodating groove. A pair of thrust ball bearings are sleeved on the push rod nut, and the pair of thrust ball bearings are arranged in the accommodating groove and below the locking nut. The convex ring is located between a pair of thrust ball bearings; The thrust component is arranged in the large hole of the shell component and is located above the connecting bottom plate; The lower end of the shell component is connected to the connecting base plate through a hexagon socket head screw.

2. A manual simulation loading device for testing a multi-turn electric actuator according to claim 1, characterized in that: The thrust component includes an upper disc spring, a lower disc spring, a push rod, a disc spring gland, and a shaft elastic retaining ring. The upper portion of the push rod is threadedly connected to the push rod nut. An upper support ring and a lower support ring are provided on the middle ring surface of the push rod. The upper disc spring, lower disc spring, disc spring gland and shaft elastic retaining ring are respectively sleeved on the push rod from top to bottom, and the upper disc spring is located above the upper support ring. The lower disc spring, disc spring cover and shaft elastic circlip are located between the upper support ring and the lower support ring. The disc spring cover is in the shape of a bottle cap with an opening downward. The shaft elastic circlip and the lower support ring are located in the opening of the disc spring cover. The lower part of the push rod extends into the through hole of the connecting bottom plate.

3. A manual simulation loading device for testing a multi-turn electric actuator according to claim 1, characterized in that: The housing component is connected to the locking nut through threads and is then fastened by a hexagonal flat-end set screw.

4. A manual simulation loading device for testing a multi-turn electric actuator according to claim 1, characterized in that: The upper end of the housing component is connected to the output flange of the electric actuator through a hexagonal bolt and a nut.

5. The manual simulation loading device for testing a multi-turn electric actuator according to claim 1, characterized in that: The connecting base plate is connected to the test bench via connecting screws.

6. A manual simulation loading device for testing a multi-turn electric actuator according to claim 2, characterized in that: It also includes a pressure pad, which is located in the large hole. The pressure pad is sleeved on the push rod and is located above the upper disc spring.

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