CN211501804U - Adapter for torque diagnosis of electric actuating mechanism - Google Patents
Adapter for torque diagnosis of electric actuating mechanism Download PDFInfo
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- CN211501804U CN211501804U CN201921503366.5U CN201921503366U CN211501804U CN 211501804 U CN211501804 U CN 211501804U CN 201921503366 U CN201921503366 U CN 201921503366U CN 211501804 U CN211501804 U CN 211501804U
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Abstract
The utility model belongs to the technical field of electric actuator's moment diagnosis, concretely relates to adaptor for electric actuator moment diagnosis. The adaptor includes a connected cylinder and hex bolt head. The post body includes opposite first and second ends, and the hexagonal bolt head is connected on the first end of post body. The cylinder is a cylinder. The second end of the column body is provided with a shaft hole, the shaft hole is matched with an output shaft of a hand wheel of the electric actuating mechanism, and the column body is sleeved on the output shaft of the hand wheel through the shaft hole. The shaft hole extends along the axial direction of the column body to the direction of the first end of the column body. The utility model discloses an adaptor, simple structure workable, the assembly is on electric actuator's hand wheel, with the cooperation operation of torque wrench, can realize the moment measurement to electric actuator.
Description
Technical Field
The utility model belongs to the technical field of electric actuator's moment diagnosis, concretely relates to adaptor for electric actuator moment diagnosis.
Background
The electric actuating mechanism is also called an electric valve driving device, an electric actuator or an electric head and the like. According to the relevant standards, the electric actuator should have a manual operating mechanism. The main function of the manual operating mechanism is to open or close the valve when the electric actuator cannot be operated electrically, so as to meet the requirements of tests or normal operation of equipment. When the valve still leaks after being electrically closed, because the electric actuating mechanism cannot be judged to have insufficient output or the valve body has defects, faults often cannot be accurately positioned, maintenance personnel have to check the electric actuating mechanism and the valve body, and time and energy are wasted. Meanwhile, due to the limitation of maintenance means, only simple inspection and measurement can be performed on the electric actuating mechanism, and whether the output torque of the electric actuating mechanism meets the requirement cannot be determined.
The conventional way to determine the output torque of an electric actuator is to carry out a torque diagnosis or a torque measurement of the electric actuator. At present, a plurality of manufacturers and a plurality of types of electric actuating mechanism torque diagnosis devices are available in the market, but the unit price of the devices is often higher and exceeds the bearing range of a plurality of units or departments, even if a special mechanism is entrusted to carry out the torque diagnosis of the electric actuating mechanism, the charge per unit is often higher, and even exceeds the price of purchasing a new electric actuating mechanism.
Therefore, there is a need for an economical and reliable method or apparatus for diagnosing torque of an electric actuator to solve this problem.
Disclosure of Invention
An object of the utility model is to provide a with low costs, simple and reliable's electronic actuating mechanism moment diagnostic adaptor to utilize moment spanner, opening head, adaptor etc. to realize the moment diagnosis to electronic actuating mechanism.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
an adaptor for torque diagnostics of an electric actuator includes a cylindrical body and a hex head joined together.
The post body includes opposite first and second ends, and the hexagonal bolt head is connected on the first end of post body.
The cylinder is a cylinder.
The second end of the column body is provided with a shaft hole, the shaft hole is matched with an output shaft of a hand wheel of the electric actuating mechanism, and the column body is sleeved on the output shaft of the hand wheel through the shaft hole.
The shaft hole extends along the axial direction of the column body to the direction of the first end of the column body.
The shaft hole extends to the joint of the column body and the head of the hexagonal bolt, or the joint of the interval column body and the head of the hexagonal bolt, and the length of the column body is equal to or greater than that of the shaft hole.
The output shaft of the hand wheel is composed of a cylinder with a groove part on the side surface and a single key assembled in the groove part.
The structure of corresponding the output shaft, the shaft hole correspondence include the round hole, set up in round hole one side and with the square hole that the round hole is linked together, the round hole cooperatees with the cylinder of output shaft, the square hole cooperatees with the single bond, cylinder and output shaft relatively fixed.
The diameter of the round hole is larger than the length of the square hole.
The hexagonal bolt head is matched with the torque wrench, the torque wrench is matched with the hexagonal bolt head through the opening part of the torque wrench, the whole adaptor and the output shaft are driven to rotate by rotating the hexagonal bolt head, and the distance between two opposite corners of the hexagonal bolt head is equal to or smaller than the diameter of the column.
The utility model discloses the beneficial effect who gains does:
the utility model discloses an adaptor, simple structure workable, the assembly is on electric actuator's hand wheel, with the cooperation operation of torque wrench, can realize measuring electric actuator's moment, through comparing with the design requirement moment value to the realization is to the diagnosis of electric actuator moment, and is than the electric actuator moment diagnostic device of conventional cost too high, the operation is complicated, easy operation, and is with low costs.
Drawings
FIG. 1 is a schematic structural view of an adapter;
FIG. 2 is a schematic cross-sectional view of the adapter of FIG. 1 along line AA;
FIG. 3 is a schematic diagram of the torque diagnostic assembly for torque diagnosis of the electric actuator.
In the figure: 1. the torque wrench comprises an adapter, 2 parts of a torque wrench, 3 parts of an electric actuating mechanism, 4 parts of a hand wheel, 10 parts of a column body, 20 parts of a hexagonal bolt head, 30 parts of a shaft hole, 31 parts of a round hole, 32 parts of a square hole and 41 parts of an output shaft.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the adaptor 1 for torque diagnosis according to the present invention is used for performing torque diagnosis on an electric actuator 3 in cooperation with a torque wrench 2. The adaptor 1 comprises a cylindrical body 10 and a hexagonal bolt head 20 joined together.
The post 10 includes opposite first and second ends, and a hexagonal bolt head 20 is attached to the first end of the post 10, which may be integrally formed. The adapter 1 is mounted on the hand wheel 4 of the electric actuator 3 via a cylinder 10. In this embodiment, the column 10 is a cylinder.
Specifically, the second end of the column 10 is provided with a shaft hole 30, and the shaft hole 30 is used for matching with an output shaft 41 of a hand wheel 4 of the electric actuator 3, so that the column 10 can be sleeved on the output shaft 41 of the hand wheel 4 through the shaft hole 30. As shown in fig. 1 and 2, the axial hole 30 is opened in the second end surface of the column 10, and extends in the axial direction of the column 10 toward the first end thereof. The shaft hole 30 may extend to a junction of the column body 10 and the hexagonal bolt head 20 or a junction of the spacer column body 10 and the hexagonal bolt head 20, so that the length of the column body 10 may be equal to or greater than the length of the shaft hole 30.
The length of the shaft hole 30 is set mainly according to the length of the output shaft 41 of the hand wheel 4.
Generally, the output shaft 41 of the hand wheel 4 is composed of a column having a groove portion formed in a side surface thereof and a single key fitted in the groove portion. The shaft hole 30 includes a circular hole 31 and a square hole 32 disposed at one side of the circular hole 31 and communicated with the circular hole 31, corresponding to the structure of the output shaft 41. The circular hole 31 is fitted with the cylinder of the output shaft 41, and the square hole 32 is fitted with the single key, so that the cylinder 10 is fixed relative to the output shaft 41. The diameter of the round hole 31 is larger than the length of the square hole 32.
Further, the length of the shaft hole 30 in the cylinder 10 is set according to the length of the single key.
A hexagonal bolt head 20 is on the first end of the column 10 for engagement with the torque wrench 2. The torque wrench 2 is fitted with its opening portion on the hexagonal bolt head 20, and the entire adaptor 1 and the output shaft 41 are driven to rotate by rotating the hexagonal bolt head 20.
Alternatively, the distance between two opposite diagonal corners of the hexagonal bolt head 20 may be equal to or less than the diameter of the column 10.
As shown in fig. 3, the torque diagnosis assembly of the present invention includes the adaptor 1 and the torque wrench 2 engaged with the adaptor 1.
When the electric actuator 3 is manually operated, the method for calculating the output torque of the electric actuator 3 comprises the following steps:
M＝Mh×ih×ηh
when the torque wrench acts, the output torque value of the electric actuating mechanism is as follows:
M＝Ms×ih×ηh
wherein M is the output torque of the electric actuating mechanism; mhIs the moment applied on the output shaft of the hand wheel; msSetting a value for the torque wrench; i.e. ihThe speed ratio of the output shaft of the hand wheel to the output end of the electric actuating mechanism in the manual operation mode is a fixed value ηhThe transmission efficiency is a fixed value when the transmission device is operated manually.
The torque trigger value of the electric actuating mechanism is related to the deformation of a torque measuring spring in the electric actuating mechanism, and the relationship is as follows: f ═ kx.
F is spring force, k is spring elastic coefficient, and x is spring deformation.
Under the same working condition, the triggering torque value of the electric actuating mechanism is positively correlated with the position of the electric valve, namely the larger the torque is, the larger the valve stroke is. Generally, the torque diagnosis of the electric actuating mechanism is carried out under the condition that a pipeline where the electric valve is located has no fluid and no pressure, so that the working conditions during testing can be completely the same.
The current torque value of the electric actuating mechanism can be tested by comparing the positions of the valve under the torque wrench operation and the electric operation, so that the torque diagnosis is completed.
Referring to fig. 3, the torque diagnosing module of the present invention is used to perform torque diagnosis on the electric actuator 3, and the specific operation includes the following steps:
s1, confirming that the pipeline where the valve is located has no fluid and no pressure;
s2, identifying a closed position of the valve in the electric mode of operation;
s3, the hand wheel 4 of the electric actuating mechanism 3 is taken down to expose the output shaft 41;
s4, mounting the adaptor 1 on the output shaft 41;
s5, setting the torque value of the torque wrench 2 according to the design value of the electric actuating mechanism 3;
s6, after the manual mode is switched, the torque wrench 2 is used for closing the electric actuating mechanism 3 through the adapter 1;
s7, marking the position of the torque wrench 2 when being triggered;
s8, comparing the position of the torque wrench 2 in the operation mode with the position of the torque wrench in the electric operation mode, and judging the range of the torque set value of the electric actuating mechanism 3;
s9, according to the judgment of the step S8, the set value of the torque wrench 2 is further adjusted until the position of the torque wrench 2 in the operation mode is overlapped with the position of the torque wrench in the electric operation mode, and the closing torque calculated by the set value of the torque wrench 2 in the overlapping process is the torque fixed value of the electric actuating mechanism 3;
s10, the torque set value of the current electric actuating mechanism 3 can be calculated by using a formula according to the set value of the torque wrench 2, and the torque set value is compared with the design value, so that the torque set value is normal within an allowable range, otherwise, a problem exists.
In the above steps, the adaptor 1 is mounted on the output shaft 41, so that the torque directly acts on the output shaft 41, the transmission efficiency is improved, the influence of the left-right shaking of the torque wrench 2 on the measurement result is avoided, and the accuracy of torque calculation is ensured.
In order to improve the calculation precision and ensure the accuracy of the moment diagnosis, the diagnosis steps can be repeatedly operated.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. An adapter for torque diagnostics of an electric actuator, comprising: the adapter comprises a column body and a hexagonal bolt head which are connected; the hexagonal bolt head is connected to the first end of the column body; the second end of the column body is provided with a shaft hole, the shaft hole is matched with an output shaft of a hand wheel of the electric actuating mechanism, and the column body is sleeved on the output shaft of the hand wheel through the shaft hole.
2. The adaptor for electric actuator torque diagnostics of claim 1 wherein: the cylinder is a cylinder.
3. The adaptor for electric actuator torque diagnostics of claim 1 wherein: the shaft hole extends along the axial direction of the column body to the direction of the first end of the column body.
4. The adaptor for electric actuator torque diagnostics of claim 3 wherein: the shaft hole extends to the joint of the column body and the head of the hexagonal bolt, or the joint of the interval column body and the head of the hexagonal bolt, and the length of the column body is equal to or greater than that of the shaft hole.
5. The adaptor for electric actuator torque diagnostics of claim 1 wherein: the output shaft of the hand wheel is composed of a cylinder with a groove part on the side surface and a single key assembled in the groove part.
6. The adaptor for electric actuator torque diagnostics of claim 5 wherein: the structure of corresponding the output shaft, the shaft hole correspondence include the round hole, set up in round hole one side and with the square hole that the round hole is linked together, the round hole cooperatees with the cylinder of output shaft, the square hole cooperatees with the single bond, cylinder and output shaft relatively fixed.
7. The adaptor for electric actuator torque diagnostics of claim 6 wherein: the diameter of the round hole is larger than the length of the square hole.
8. The adaptor for electric actuator torque diagnostics of claim 1 wherein: the hexagonal bolt head is matched with the torque wrench, the torque wrench is matched with the hexagonal bolt head through the opening part of the torque wrench, the whole adaptor and the output shaft are driven to rotate by rotating the hexagonal bolt head, and the distance between two opposite corners of the hexagonal bolt head is equal to or smaller than the diameter of the column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503366.5U CN211501804U (en) | 2019-09-11 | 2019-09-11 | Adapter for torque diagnosis of electric actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503366.5U CN211501804U (en) | 2019-09-11 | 2019-09-11 | Adapter for torque diagnosis of electric actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501804U true CN211501804U (en) | 2020-09-15 |
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ID=72405079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921503366.5U Active CN211501804U (en) | 2019-09-11 | 2019-09-11 | Adapter for torque diagnosis of electric actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501804U (en) |
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2019
- 2019-09-11 CN CN201921503366.5U patent/CN211501804U/en active Active
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