Connecting piece for torque parameter calibration and pump motor test bench

Abstract

The utility model relates to the technical field of pump test bed torque calibration, and discloses a connecting piece for torque parameter calibration, which comprises a connector and a fastener. One end of the connector is used for connecting torque standard equipment; one end of the fastener is connected with the other end of the connector, a mounting hole is formed in the fastener, a plurality of stop grooves are uniformly formed in the inner side wall of the mounting hole, and the mounting hole is used for connecting a detected torque sensor. According to the utility model, the calibration of the torque parameters can be carried out on site, the calibration difficulty is reduced, the calibration convenience is improved, the safety and stability of the calibration operation are ensured, and the accuracy of the metering calibration data of the torque parameters of the lift pump test bed is facilitated. The invention further discloses a pump motor test bed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pump test bench torque calibration, for example to a connecting piece for torque parameter calibration and a pump motor test bench. BACKGROUND

[0002] In modern industrial manufacturing and automation control systems, torque is one of the key physical quantities, and its accurate measurement is crucial for ensuring the reliable operation of mechanical equipment and improving production efficiency. Therefore, regular calibration of torque sensors is a key process to ensure their measurement accuracy and reliability.

[0003] The current widely used calibration methods include sending portable working measuring instruments to high-level metrological standard departments for calibration, and sending technical personnel from high-level laboratories to the site for calibration of large devices that are not convenient to transport, to ensure the accuracy and consistency of the calibration process. However, when performing on-site calibration, the type of sensor, application requirements, equipment characteristics and environmental conditions must be considered. The sensor structure, model specification on the instrument equipment is special, and cannot be directly connected with the standard device. The limitations of installation position and operation space may also bring additional difficulties to the calibration process, resulting in difficulty in ensuring the reliability of the calibration data.

[0004] Therefore, it can be seen that how to reduce the calibration difficulty, improve the convenience of calibration, and improve the accuracy of the measurement and calibration data of the pump test bench torque parameter is a technical problem that needs to be solved by those skilled in the art.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE INVENTION

[0006] In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0007] The present application provides a connecting piece for torque parameter calibration and a pump motor test bench, which can not only calibrate the torque parameter on site, reduce the calibration difficulty, improve the convenience of calibration, but also ensure the safety and stability of the calibration operation, and help to improve the accuracy of the measurement and calibration data of the pump test bench torque parameter.

[0008] In some embodiments, the connecting piece for torque parameter calibration comprises a connector and a fastener. The connector is used to connect a torque standard device at one end thereof; the fastener is connected to the other end of the connector, and the fastener is internally provided with a mounting hole, and a plurality of stop grooves are uniformly arranged on the inner side wall of the mounting hole, wherein the mounting hole is used to connect a to-be-tested torque sensor.

[0009] Optionally, the fastener is coaxially arranged with the connector and the mounting hole arranged in the connector.

[0010] Optionally, the connector and the fastener are integrally formed.

[0011] Optionally, the stop grooves are arranged in pairs and symmetrically about the axis of the mounting hole.

[0012] Optionally, the depth of the stop grooves is adjustable.

[0013] Optionally, the diameter of the connector is greater than or equal to one-half of the diameter of the fastener and less than or equal to two-thirds of the diameter of the fastener.

[0014] Optionally, the diameter of the mounting hole is greater than or equal to one-half of the diameter of the fastener and less than the diameter of the fastener.

[0015] Optionally, the length of the mounting hole and the length of the stop grooves are the same as the length of the fastener.

[0016] Optionally, the fastener is provided with a vibration sensor.

[0017] In some embodiments, the pump motor test bench comprises the connecting piece for torque parameter calibration according to any one of the above.

[0018] The connecting piece for torque parameter calibration and the pump motor test bench provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] By connecting the connector with the torque standard device and connecting the to-be-tested torque sensor in the mounting hole, and then limiting the movement of the torque sensor by the plurality of stop grooves, the connection of the torque sensor is more stable, so that the torque parameter calibration can be performed on site, the calibration difficulty is reduced, the calibration convenience is improved, the safety and stability of the calibration operation are ensured, and the accuracy of the measurement and calibration data of the torque parameter of the pump test bench is improved.

[0020] The general description above and the following description below are exemplary and explanatory only and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting of the present embodiments. Like numbers refer to like elements throughout the drawings, which are not necessarily to scale, and in which:

[0022] Figure 1 is a structural schematic diagram of a connecting piece for torque parameter calibration provided by an embodiment of the present disclosure;

[0023] Figure 2 is another structural schematic diagram of a connecting piece for torque parameter calibration provided by an embodiment of the present disclosure;

[0024] Figure 3 is a structural schematic diagram of a mounting hole provided by an embodiment of the present disclosure;

[0025] Figure 4 is a structural schematic diagram of a stop groove provided by an embodiment of the present disclosure;

[0026] Figure 5 is a structural schematic diagram of a vibration sensor provided by an embodiment of the present disclosure.

[0027] Reference Signs:

[0028] 100, connector; 101, torque standard device; 200, fastener; 201, mounting hole; 202, stop groove; 203, torque sensor; 204, vibration sensor; 205, electric telescopic rod; 206, limiting clamp plate. DETAILED DESCRIPTION

[0029] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0030] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0031] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0032] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0033] Unless otherwise specified, the term "a plurality of" means two or more.

[0034] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0035] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0036] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0037] In combination with Figures 1-3 As shown in the drawings, the present disclosure provides a connecting piece for torque parameter calibration, which comprises a connector 100 and a fastener 200. One end of the connector 100 is used to connect a torque standard device 101; one end of the fastener 200 is connected with the other end of the connector 100, and a mounting hole 201 is formed in the fastener 200, and a plurality of stop grooves 202 are uniformly formed on the inner side wall of the mounting hole 201, wherein the mounting hole 201 is used to connect a detected torque sensor 203.

[0038] The connecting piece for torque parameter calibration provided by the embodiment of the present disclosure is used to connect the connector 100 with the torque standard equipment 101, and connect the detected torque sensor 203 in the mounting hole 201, then limit the activity of the torque sensor 203 by the plurality of stop grooves 202, so that the connection of the torque sensor 203 is more stable, thereby not only can the torque parameter calibration be carried out on site, the calibration difficulty is reduced, the calibration convenience is improved, but also the safety and stability of the calibration operation are ensured, and the accuracy of the measurement and calibration data of the torque parameter of the pump test bench is improved.

[0039] In other embodiments, optionally, a plurality of mounting holes 201 are formed inside the fastener 200 and arranged in a stepped manner along the axial direction of the fastener 200, and the diameter of the mounting hole 201 gradually decreases from one end of the fastener 200 to the other end close to the connector 100. In this way, when calibrating torque sensors 203 of different sizes, the connecting piece does not need to be frequently replaced, and only needs to be connected with the torque sensor 203 and the mounting hole 201 matched with it, so that the connecting piece is suitable for connecting torque sensors 203 of different sizes for calibration.

[0040] Optionally, the plurality of mounting holes 201 are coaxially arranged. In this way, the mounting holes 201 inside the fastener 200 are more uniform and neat, and the torque sensor 203 can be more smoothly installed, and the compactness and stability of the installation are ensured.

[0041] It can be understood that the connector 100 is a shaft coupling, and the shaft coupling is prior art, and its specific structure is not described here.

[0042] Optionally, the end of the mounting hole 201 away from the connector 100 is connected with the external environment. In this way, the overall structure of the fastener 200 is rationalized, and the torque sensor 203 can be quickly and smoothly assembled in the mounting hole 201.

[0043] Optionally, the fastener 200, the connector 100 and the mounting hole 201 in the connector 100 are coaxially arranged. In this way, after the connecting piece is used to connect the torque standard equipment 101 with the pump test bench, the vertical application of torque can be realized, the torque parameter of the test bench is ensured to be in the position of vertical application of torque during the calibration process, and the coaxiality can be maintained, so that the accuracy of the measurement and calibration data of the torque parameter of the pump test bench can be better ensured.

[0044] Optionally, the connector 100 and the fastener 200 are an integral structure. In this way, the integral structure is more stable in structure, and the stability and safety of the calibration operation are ensured.

[0045] In other embodiments, the connector 100 and the fastener 200 are detachably connected. In this way, the connection is flexible, and the connector 100 and the fastener 200 can be individually disassembled for maintenance. When installing and calibrating, the connector can be disassembled first and then installed, so that the installation method is diversified to meet various use requirements.

[0046] Optionally, the stop grooves 202 are arranged in pairs and symmetrically about the axis of the mounting hole 201. In this way, the opposite sides of the torque sensor 203 are simultaneously locked by the paired and symmetric stop grooves 202, so that the torque sensor 203 can be effectively prevented from rotating during calibration, ensuring the stability of the calibration operation and the reliability of the calibration data.

[0047] As shown in Figure 4 Optionally, the depth of the stop groove 202 is adjustable. In this way, the structure of the stop groove 202 is more flexible, and the torque sensor 203 can be more stably assembled in the mounting hole 201 by adjusting the depth of the stop groove 202 according to the structure, model, specification and size of the torque sensor 203 to be calibrated, so that the torque sensor 203 can be effectively prevented from shaking, rotating or shifting.

[0048] Optionally, the bottom side wall inside the stop groove 202 is movably provided with a limiting clamp plate 206 by an electric telescopic rod 205. In this way, when the stop groove 202 cannot meet the installation requirements of the torque sensor 203, the limiting clamp plate 206 is driven by controlling the electric telescopic rod 205 to tightly clamp the torque sensor 203 entering the mounting hole 201 according to the structure, shape and size of the torque sensor 203, so that the coaxial calibration of the torque standard equipment 101, the connector and the torque sensor 203 can be realized to ensure the data accuracy.

[0049] Optionally, the length of the limiting clamp plate 206 is the same as the length of the stop groove 202. In this way, the contact area between the limiting clamp plate 206 and the torque sensor 203 is increased, so that the limiting clamp plate 206 can better fix the torque sensor 203 to ensure the stability of the torque sensor 203 installation.

[0050] Optionally, the diameter of the connector 100 is greater than or equal to one half of the diameter of the fastener 200 and less than or equal to two thirds of the diameter of the fastener 200. In this way, the size of the connector 100 is within a reasonable range, and the overall structure of the connector 100 and the fastener 200 connected to form a connector is more processed and coordinated, so as to ensure the stability of the overall structure of the connector and facilitate more stable and safe calibration operation.

[0051] Optionally, the diameter of the mounting hole 201 is greater than or equal to one half of the diameter of the fastener 200 and less than the diameter of the fastener 200. In this way, the diameter of the mounting hole 201 is within a reasonable range, suitable for the size of most torque sensors 203, and can securely mount the torque sensor 203 in the mounting hole 201, ensuring the stability of the torque sensor 203 installation.

[0052] Optionally, the length of the mounting hole 201 and the length of the stop groove 202 are the same as the length of the fastener 200. In this way, it helps to increase the contact area between the torque sensor 203 and the fastener 200, so that after the torque sensor 203 is installed in the mounting hole 201 of the fastener 200, the torque sensor 203 can be effectively prevented from rotating or shifting and falling off, further improving the stability of the torque sensor 203 installation.

[0053] As shown in Figure 5 Optionally, the fastener 200 is provided with a vibration sensor 204. In this way, when calibrating the torque parameters of the torque sensor 203, the vibration sensor 204 is used to detect vibration data, so as to timely adjust in the case of deviation of the vibration data, reduce the influence of vibration on the calibration data, improve the calibration accuracy, and ensure the reliability of the calibration data.

[0054] The embodiment of the present disclosure provides a pump motor test bench, which comprises the connecting piece for torque parameter calibration.

[0055] The pump motor test bench provided by the embodiment of the present disclosure is connected with the torque standard equipment 101 through the connector 100, and the detected torque sensor 203 is connected in the mounting hole 201, and then the activity of the torque sensor 203 is limited by the plurality of stop grooves 202, so that the connection of the torque sensor 203 is more stable, thereby not only can the torque parameter calibration be carried out on site, reducing the calibration difficulty and improving the calibration convenience, but also ensuring the safety and stability of the calibration operation, and helping to improve the accuracy of the measurement and calibration data of the torque parameter of the pump test bench.

[0056] Optionally, the pump motor test bench includes two output channels, one of which is a computer system direct output, and the other is a secondary instrument output. In this way, the computer output value and the secondary instrument value are compared after calibration to calibrate the secondary instrument and ensure the accuracy of the output value.

[0057] In some embodiments, the calibration connector one end connector 100 is connected with the torque standard device 101, the other end mounting hole 201 is connected with the pump test bench torque sensor 203, the contact surface is completely attached to ensure the tight connection, the power is turned on, the torque standard device 101 display switch is turned on, the corresponding channel of the sensor is selected, the loading is started, the torque sensor 203 is in the range of 0-1000Nm, the torque wrench loading torque is transmitted to the pump test bench torque sensor 203 through the torque standard device 101, the torque value 200Nm is input on the torque standard device 101, the torque is evenly distributed and selected at 5 points, until 1000Nm, the data is recorded, the reverse stroke is input 1000Nm to 0Nm, the forward and reverse strokes are repeated for 3 times, the pump test bench computer system torque parameter output value is 200.4Nm, 1001.8Nm, the secondary instrument output value is 200.4Nm, 1001.8Nm, the display is turned off, the power is turned off, the calculated indicated error is 0.3%, the indicated repeatability is 0.1%, the output values of the secondary instrument and the computer system are consistent, and the secondary instrument is calibrated at the same time. According to the standard torque instrument verification regulation JG557-2011, the indicated error of the 0.5 level torque sensor 203 is within ±0.5%, and the repeatability is within 0.5%, indicating that the detected device is qualified, and the test result meets the standard torque instrument verification regulation JJG557.

[0058] The preparation work is the same as the above steps, after the power is turned on, the torque sensor 203 is in the range of 0-500Nm, the torque wrench loading torque is transmitted to the pump test bench torque sensor 203 through the torque standard device 101, the torque wrench input value is continuously increased to the maximum value, and the reverse stroke verification is performed again, which is repeated for 3 times, 100Nm, 500Nm, the pump test bench torque parameter output value is 100.1Nm, 501.8Nm, the secondary instrument output value is 100.1Nm, 501.8Nm, the indicated error is 0.4%, the indicated repeatability is 0.1%, and the test result meets the standard torque instrument verification regulation JJG557. The connector realizes the online measurement of the pump test bench torque sensor 203, and ensures the accuracy of the pump test bench torque parameter calibration.

[0059] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A connection for torque parameter calibration, characterized by, The utility model relates to a torque parameter calibration connector, comprising: a connector (100) having one end for connecting a torque standard device (101); a fastener (200) having one end connected to the other end of the connector (100), and the fastener (200) having an installation hole (201) formed inside, the inside wall of the installation hole (201) having a plurality of stop grooves (202) formed uniformly, wherein the installation hole (201) is used for connecting a torque sensor (203) to be detected.

2. The connection for torque parameter calibration of claim 1, wherein, The fastener (200), the connector (100) and the installation hole (201) formed inside the connector (100) are coaxially arranged.

3. The connection for torque parameter calibration of claim 1, wherein, The connector (100) and the fastener (200) are integrally formed.

4. The connection for torque parameter calibration of claim 1, wherein, The stop grooves (202) are arranged in pairs and symmetrically about the axis of the installation hole (201).

5. The connection for torque parameter calibration of claim 4, wherein, The depth of the stop grooves (202) is adjustable.

6. A connection for torque parameter calibration according to any one of claims 1 to 5, characterized in that, The diameter of the connector (100) is greater than or equal to one-half of the diameter of the fastener (200) and less than or equal to two-thirds of the diameter of the fastener (200).

7. A connection for torque parameter calibration according to any one of claims 1 to 5, characterized in that, The diameter of the installation hole (201) is greater than or equal to one-half of the diameter of the fastener (200) and less than the diameter of the fastener (200).

8. A connection for torque parameter calibration according to any one of claims 1 to 5, characterized in that, The length of the installation hole (201) and the length of the stop grooves (202) are the same as the length of the fastener (200).

9. A connection for torque parameter calibration according to any one of claims 1 to 5, characterized in that, The fastener (200) is provided with a vibration sensor (204).

10. A pump motor test stand characterized by, The utility model relates to a torque parameter calibration connector, comprising: a connector (100) having one end for connecting a torque standard device (101); a fastener (200) having one end connected to the other end of the connector (100), and the fastener (200) having an installation hole (201) formed inside, the inside wall of the installation hole (201) having a plurality of stop grooves (202) formed uniformly, wherein the installation hole (201) is used for connecting a torque sensor (203) to be detected. The fastener (200), the connector (100) and the installation hole (201) formed inside the connector (100) are coaxially arranged. The connector (100) and the fastener (200) are integrally formed. The stop grooves (202) are arranged in pairs and symmetrically about the axis of the installation hole (201). The depth of the stop grooves (202) is adjustable. The diameter of the connector (100) is greater than or equal to one-half of the diameter of the fastener (200) and less than or equal to two-thirds of the diameter of the fastener (200). The diameter of the installation hole (201) is greater than or equal to one-half of the diameter of the fastener (200) and less than the diameter of the fastener (200). The length of the installation hole (201) and the length of the stop grooves (202) are the same as the length of the fastener (200). The fastener (200) is provided with a vibration sensor (204). The utility model relates to a torque parameter calibration connector, comprising: a connector (100) having one end for connecting a torque standard device (101); a fastener (200) having one end connected to the other end of the connector (100), and the fastener (200) having an installation hole (201) formed inside, the inside wall of the installation hole (201) having a plurality of stop grooves

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