Valve electric actuator assembling and testing equipment

Abstract

The utility model discloses a valve electric actuator assembly test device, which comprises a test board, a first bearing seat, a valve shell, an electric push rod, a supporting plate, a bearing table, a transmission shaft, a dial indicator, a supporting seat, a screw rod and an actuator main body, and is characterized in that the valve shell is fixedly arranged on the first bearing seat, and a valve plate is arranged in the valve shell through a rotating shaft; a first square hole structure is arranged at the outer end of a rotating shaft of the valve plate, and the first bearing seat is fixedly installed on a top plate of the test board. The test equipment can perform stroke precision test on the opening and closing state of the valve plate of the butterfly valve driven by the electric actuator and the 30-degree and 60-degree rotation positions, so that the accuracy of test data of the assembled electric actuator is improved; the device can meet lifting and supporting requirements of stroke precision testing operation of electric actuators of various sizes and types.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric actuators, in particular to an assembly and testing device for a valve electric actuator. Background Art

[0002] Valve electric actuator refers to a precision electrical component that uses electricity as the main energy source to drive the opening and closing of valves. When testing the accuracy of the valve actuator used for the rotation of the butterfly valve shaft and valve plate, the current power-on test method for the assembled valve actuator is to connect the valve actuator to the valve shaft of the butterfly valve being tested, and then start the actuator to drive the valve shaft and valve plate of the butterfly valve to reciprocate, observe the opening and closing status of the valve plate and the outer shell of the butterfly valve, and judge the performance and stroke accuracy of the actuator. This test method can only test the two extreme state positions of the butterfly valve plate, and the position accuracy of the valve plate when it rotates 30° and 60° cannot be known. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a device capable of testing the stroke accuracy of the opening and closing state of a butterfly valve plate driven by an electric actuator and the 30° and 60° rotation positions.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a valve electric actuator assembly test equipment, including a test bench, a first bearing seat, a valve housing, an electric push rod, a support plate, a carrier, a transmission shaft, a micrometer, a support seat, a screw and an actuator body, the valve housing is fixedly arranged on the first bearing seat, a valve plate is installed in the valve housing through a rotating shaft, a first square hole structure is arranged at the outer end of the rotating shaft of the valve plate, the first bearing seat is fixedly installed on the top plate of the test bench, the electric push rod is fixedly installed on the bottom plate of the test bench, a through hole is arranged on the top of the test bench, the support plate slides through the through hole on the top of the test bench, the actuator rod of the electric push rod is fixedly connected to the support plate, and the transmission shaft is rotatably installed on the carrier through a ball bearing. On the platform, the left end of the transmission shaft is set to a first square axis structure that matches the first square hole structure at the outer end of the rotating shaft of the valve plate, the outer end of the output shaft of the actuator body is set to a second square axis structure, and the right end of the transmission shaft is set to a second square hole structure that matches the second square axis structure at the outer end of the output shaft of the actuator body. A bracket is fixedly arranged on the actuator body, two support seats are fixedly installed on the right side of the platform, the bracket is fixedly installed on the support seat through a screw and a lock nut, a second bearing seat is fixedly installed on the left side of the platform, the micrometer is fixedly installed on the second bearing seat, and a spherical protrusion is fixedly arranged on the outer cylindrical surface of the left end of the transmission shaft in a ring array within a filling angle of 90°, and the contact of the micrometer can be crimped at the center position of the spherical protrusion.

[0005] Preferably, the spherical protrusions are arranged in a ring array.

[0006] Preferably, the top surface of the spherical protrusion is configured as a circular plane structure with a diameter of 3-4 mm.

[0007] Preferably, a telescopic guide rod is fixedly mounted on the bottom surface of the test bench, and the top of the telescopic guide rod is fixedly connected to the support plate.

[0008] Compared with the prior art, the benefits of the utility model are: the test equipment can perform stroke accuracy tests on the opening and closing states of the butterfly valve plate driven by the electric actuator and the 30° and 60° rotation positions, thereby improving the accuracy of the test data of the assembled electric actuator. The support plate is arranged as a lifting structure, which can be suitable for the lifting and supporting requirements of the stroke accuracy test operations of electric actuators of various sizes and types. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings.

[0010] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] The utility model is described in detail below in conjunction with specific implementation methods:

[0012] like Figure 1The valve electric actuator assembly test equipment shown in the figure includes a test bench 1, a first bearing seat 2, a valve housing 21, an electric push rod 3, a support plate 31, a carrier 4, a transmission shaft 5, a micrometer 61, a support seat 7, a screw 8 and an actuator body 9, wherein the valve housing 21 is fixedly arranged on the first bearing seat 2, a valve plate 22 is installed in the valve housing 21 through a rotating shaft, and a first square hole structure is arranged at the outer end of the rotating shaft of the valve plate 22, the first bearing seat 2 is fixedly installed on the top plate of the test bench 1, the electric push rod 3 is fixedly installed on the bottom plate of the test bench 1, a through hole is arranged on the top of the test bench 1, the support plate 31 slides through the through hole on the top of the test bench 1, the actuator rod of the electric push rod 3 is fixedly connected to the support plate 31, the transmission shaft 5 is rotatably installed on the carrier 4 through a ball bearing, the retaining frame of the ball bearing is fixedly installed on the carrier 4, and the transmission shaft 5 is rotatably mounted on the rotating body of the ball bearing, the left end of the transmission shaft 5 is set as a first square shaft structure matched with the first square hole structure of the outer end of the rotating shaft of the valve plate 22, the outer end of the output shaft of the actuator body 9 is set as a second square shaft structure, the right end of the transmission shaft 5 is set as a second square hole structure matched with the second square shaft structure of the outer end of the output shaft of the actuator body 9, a bracket 91 is fixedly arranged on the actuator body 9, two support seats 7 are fixedly installed on the right side surface of the carrier 4, the bracket 91 is fixedly installed on the support seat 7 through a screw 8 and a lock nut, a second bearing seat 6 is fixedly installed on the left side surface of the carrier 4, the micrometer 61 is fixedly installed on the second bearing seat 6, and a spherical protrusion 51 is fixedly arranged on the outer cylindrical surface of the left end of the transmission shaft 5 in a ring array within a filling angle of 90°, and the contact of the micrometer 61 can be crimped at the center position of the spherical protrusion 51.

[0013] The spherical protrusions 51 are arranged in a circular array in four numbers, and the positions of the four spherical protrusions 51 respectively correspond to the valve plate 22 of the valve housing 21 in a fully closed state of 0°, an open state of 30°, an open state of 60°, and a fully open state of 90°.

[0014] The top surface of the spherical protrusion 51 is configured as a circular plane structure with a diameter of 3-4 mm, so as to improve the stability of the contact of the micrometer 61 when contacting the top surface of the spherical protrusion 51 .

[0015] A telescopic guide rod 32 is fixedly installed on the bottom surface of the test bench 1, and the top of the telescopic guide rod 32 is fixedly connected to the support plate 31. The telescopic guide rod 32 can improve the straightness of the support plate 31 when it moves up and down, and plays a guiding role.

[0016] When the assembled actuator body 9 is powered on for testing, firstly, according to the size of the actuator body 9, the electric push rod 3 is started to adjust the upper and lower position heights of the support plate 31, and the actuator body 9 is placed on the support plate 31. The bracket 91 of the actuator body 9 is fixedly installed with the upper and lower support seats 7 through the screw rod 8 and the lock nut. At this time, the outer end of the output shaft of the actuator body 9 is slidably embedded in the second square hole structure at the right end of the transmission shaft 5. The screw rod 8 is sleeved with a support sleeve, and the upper and lower ends of the support sleeve are respectively supported on the upper and lower ends of the bracket 91, so as to prevent the actuator body 9 from being damaged. In order to prevent the tightening force of the screw 8 and the lock nut from squeezing and deforming the support seat 7 and the bracket 91, the actuator body 9 is powered on and started, gradually driving the valve plate 22 in the fully closed state on the valve housing 21 to rotate 30°, 60° and 90° in sequence. The tester observes the state of the valve plate 22 after the actuator body 9 is controlled to rotate 30°, 60° and 90°, and judges the rotation accuracy of the valve housing 21 and the valve plate 22 driven by the actuator body 9 through the contact position between the contact of the micrometer 61 and the spherical protrusion 51 on the transmission shaft 5, as well as the value of the pointer of the micrometer 61.

Claims

1. A valve electric actuator assembly test equipment, characterized in that: The invention comprises a test bench (1), a first bearing seat (2), a valve housing (21), an electric push rod (3), a support plate (31), a platform (4), a transmission shaft (5), a micrometer (61), a support seat (7), a screw rod (8) and an actuator body (9), wherein the valve housing (21) is fixedly arranged on the first bearing seat (2), a valve plate (22) is installed in the valve housing (21) via a rotating shaft, and a first square hole structure is arranged at the outer end of the rotating shaft of the valve plate (22), the first bearing seat (2) is fixedly arranged on the top plate of the test bench (1), the electric push rod (3) is fixedly arranged on the bottom plate of the test bench (1), a through hole is arranged on the top of the test bench (1), the support plate (31) slides through the through hole on the top of the test bench (1), the actuator rod of the electric push rod (3) is fixedly connected to the support plate (31), the transmission shaft (5) is rotatably arranged on the platform (4) via a ball bearing, and the transmission shaft (5 ) is arranged at its left end as a first square shaft structure cooperating with a first square hole structure at the outer end of the rotating shaft of the valve plate (22); the outer end of the output shaft of the actuator body (9) is arranged as a second square shaft structure; the right end of the transmission shaft (5) is arranged as a second square hole structure cooperating with the second square shaft structure at the outer end of the output shaft of the actuator body (9); a bracket (91) is fixedly arranged on the actuator body (9); two support seats (7) are fixedly installed on the right side surface of the carrier (4); the bracket (91) is fixedly installed on the support seat (7) through a screw rod (8) and a lock nut; a second bearing seat (6) is fixedly installed on the left side surface of the carrier (4); the micrometer (61) is fixedly installed on the second bearing seat (6); a spherical protrusion (51) is fixedly arranged on the outer cylindrical surface of the left end of the transmission shaft (5) in a ring array within a filling angle of 90°; the contact of the micrometer (61) can be crimped at the center position of the spherical protrusion (51).

2. The valve electric actuator assembly and testing equipment according to claim 1, characterized in that: Four spherical protrusions (51) are arranged in a ring array.

3. The valve electric actuator assembly and testing equipment according to claim 1, characterized in that: The top surface of the spherical protrusion (51) is configured as a circular plane structure with a diameter of 3-4 mm.

4. The valve electric actuator assembly and testing equipment according to claim 1, characterized in that: A telescopic guide rod (32) is fixedly mounted on the bottom surface of the test bench (1), and the top of the telescopic guide rod (32) is fixedly connected to the support plate (31).

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