Torque sensor calibration device

Abstract

The utility model provides a kind of torque sensor calibration device, the torque sensor includes: base;First mounting and second mounting, the first mounting and the second mounting jointly form the containing space for limiting torque sensor, the first mounting and the second mounting side close to each other are each equipped with multiple positioning pins, the positioning pin is used to be arranged in the positioning hole correspondingly arranged along thickness direction of the torque sensor, the side of the second mounting away from the first mounting is equipped with torsion input piece, the second mounting is used to connect the torque sensor and the torsion input piece.According to the torque sensor calibration device of the present application, the assembly process and positioning accuracy are optimized. The operator only needs to align the torque sensor with the positioning pin when installing the sensor. This further reduces the on-site operation steps and shortens the assembly time.

Description

Technical Field

[0001] This utility model relates to the field of torque sensor calibration technology, and specifically to a torque sensor calibration device. Background Technology

[0002] Torque sensors are widely used in industrial transmission, automobile manufacturing, precision instruments and other fields. The measurement accuracy of torque sensors directly affects the operating efficiency and safety performance of equipment. Therefore, torque sensors need to be calibrated by calibration devices.

[0003] Existing torque sensor calibration devices are bulky and inconvenient to move, making it difficult to flexibly transport or adjust their placement according to usage scenarios. This is especially true when on-site calibration of sensors in different locations is required, resulting in poor adaptability. Furthermore, fixing the torque sensor involves complex assembly and lengthy operation times, thus reducing calibration efficiency. In addition, the large size also leads to higher manufacturing costs.

[0004] Therefore, there is an urgent need for a new type of torque sensor calibration device. Utility Model Content

[0005] In view of this, the present invention aims to provide a torque sensor calibration device to solve the problems of large size and complicated operation when assembling torque sensors in the prior art.

[0006] In a first aspect, this application proposes a torque sensor calibration device, comprising: Base; A first mounting component and a second mounting component together form a receiving space for limiting the torque sensor. The first mounting component and the second mounting component are provided with a plurality of positioning pins on the side close to each other. The positioning pins are used to pass through the positioning holes corresponding to the torque sensor along the thickness direction. The side of the second mounting component opposite to the first mounting component is provided with a torque input component. The second mounting component is used to connect the torque sensor and the torque input component.

[0007] According to the torque sensor calibration device of this application, the base is provided with a guide member that extends in a straight line, the first mounting member is slidably engaged on the guide member, and the second mounting member is fixed on the guide member.

[0008] Optionally, the first mounting member is provided with a first locking member, and the base is provided with a plurality of first mating members. The plurality of first mating members are spaced apart along the extension direction of the guide member. The first locking member can selectively lock or disengage with any of the first mating members. When the first locking member locks with the first mating member, the position of the first mounting member on the guide member is fixed.

[0009] Optionally, the second mounting component includes a locking part and a mounting base. The locking part is provided on the side of the mounting base near the first mounting component. A bearing is connected between the locking part and the mounting base. The torque input component is provided on the side of the mounting base opposite to the locking part.

[0010] According to the torque sensor calibration device of this application, the first mounting member is provided with a plurality of first mounting holes, and the positioning pin is detachably fixed in at least a portion of the first mounting holes; the second mounting member is provided with a plurality of second mounting holes, and the positioning pin is detachably fixed in at least a portion of the second mounting holes.

[0011] According to the torque sensor calibration device of this application, the torque input element has two support arms extending along the same straight line, the central axis of the torque input element is perpendicular to the extension direction of the support arms, and the two support arms are respectively disposed on both sides of the central axis.

[0012] Optionally, the second mounting member is provided with a plurality of third mounting holes, which are distributed circumferentially along the central axis. The third mounting holes are oblong holes and extend circumferentially along the central axis. The torque input member is provided with assembly holes, and fasteners are inserted into the third mounting holes and the assembly holes.

[0013] Optionally, each of the free ends of the support arms is provided with at least one weight hanging shaft, and the weight hanging shafts on the two support arms are arranged symmetrically.

[0014] Optionally, the torque sensor calibration device further includes two horizontal calibration blocks, which are respectively placed on both sides of the central axis and supported between the support arm and the base. The support arm is calibrated to a horizontal state by adjusting the position of the support arm so that the support arm is in contact with the top of the horizontal calibration block. After the support arm is calibrated to a horizontal state, the horizontal calibration block is removed from between the support arm and the base.

[0015] According to the torque sensor calibration device of this application, the first mounting member is provided with a wire harness fixing hole, which is used to fix the wire harness connected to the torque sensor.

[0016] The technical solutions provided in this application have the following advantages compared with the prior art: The torque sensor calibration device provided in this application has a base that supports the entire device, facilitating its overall movement. During torque sensor assembly, the first and second mounting components are used to place the torque sensor within the space they form. The positioning holes on both sides of the torque sensor's thickness direction can be directly aligned with the positioning pins on the first and second mounting components near the torque sensor. Moving the positioning pins on both sides allows them to pass into the positioning holes without the need for additional tools or alignment, significantly simplifying the assembly process and saving time. A torque input component is located on the side of the second mounting component opposite to the first. The second mounting component connects the torque sensor and the torque input component, which is fixed to it. The positioning pins are also fixed to the second mounting component, eliminating the need for repeated assembly and adjustment. Based on the positioning pins on the second mounting component, the torque sensor remains coaxial with the torque input component when subjected to torque, thus improving the reliability of the calibration results.

[0017] The torque sensor calibration device provided in this application pre-assembles the locating pins onto the first and second mounting components before assembling the torque sensor. This further optimizes the assembly process and positioning accuracy. Operators do not need to perform additional installation and adjustment of the locating pins when installing the sensor; they only need to align the torque sensor with the locating pins, further reducing on-site operation steps and shortening assembly time. For example, the torque sensor can be first inserted into the locating pin on the second mounting component. At this point, one side of the torque sensor is preliminarily positioned by the locating pin. Then, the first mounting component is moved, or the pre-installed locating pin on the first mounting component is moved, and inserted into the locating hole on the other side of the torque sensor. This ensures the alignment accuracy of the locating holes on both sides through the preset position of the locating pin, thereby improving assembly efficiency and ensuring the coaxiality of the torque sensor and the torque input component, thus ensuring more reliable calibration results. Attached Figure Description

[0018] Figure 1 The image shown is a perspective view of a torque sensor calibration device according to some embodiments of this application.

[0019] Figure 2 As shown Figure 1 A partial view of the torque sensor calibration device in the embodiment.

[0020] Figure 3 As shown Figure 1 Another partial view of the torque sensor calibration device in the embodiment.

[0021] Figure label: Base 10, first mating part 11, first mounting part 20, first mounting hole 22, wire harness fixing hole 23, second mounting part 30, second mounting hole 31, locking part 32, mounting base 33, third mounting hole 35, fastener 36, torque input part 40, support arm 41, weight hanging shaft 42, guide part 50, stop block 51, first slider 60, first locking part 61, second slider 70, horizontal calibration block 80, torque sensor 2, weight 3. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0024] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0025] like Figure 1 As shown, the torque sensor calibration device according to an embodiment of this application includes: a base 10, a first mounting member 20, and a second mounting member 30.

[0026] Specifically, the first mounting member 20 and the second mounting member 30 together form a receiving space for limiting the torque sensor 2. Multiple positioning holes are provided on both sides of the space. Multiple positioning pins are provided on the side of the first mounting member 20 and the second mounting member 30 that are close to each other. The positioning pins are used to pass through the positioning holes of the torque sensor 2 that are correspondingly provided along the thickness direction. A torque input member 40 is provided on the side of the second mounting member 30 that is away from the first mounting member 20. The second mounting member 30 is used to connect the torque sensor 2 and the torque input member 40.

[0027] The base 10 can be flat in shape, and when the torque sensor calibration device is placed on the support surface, the base 10 extends horizontally.

[0028] The first mounting component 20 is a plate-shaped or frame structure with a certain rigidity, and the second mounting component 30 is also a plate-shaped or frame structure with a certain rigidity. The first mounting component 20 and the second mounting component 30 are arranged opposite to each other on the top surface of the base 10 and are spaced apart from each other. The spacing between them forms a receiving space for accommodating the torque sensor 2. The width of the receiving space is adapted to the thickness of the torque sensor 2 to be calibrated, ensuring that the torque sensor 2 will not become loose after it is fixed.

[0029] The torque sensor 2 is typically disc-shaped or block-shaped. Both sides of the torque sensor 2 along its thickness direction are usually flat surfaces, and multiple positioning holes are provided on each side surface. These positioning holes are spaced apart circumferentially or radially along the surface. The cross-sectional shape of the positioning holes is not limited to circular, elliptical, square, or polygonal shapes.

[0030] To match the torque sensor 2, the side of the first mounting member 20 closest to the second mounting member 30 is a flat mounting surface, and the side of the second mounting member 30 closest to the first mounting member 20 is also a flat mounting surface. This facilitates a close fit with the torque sensor 2, increases the contact area with the torque sensor 2, and ensures the positioning accuracy and coaxiality of the torque sensor 2 after assembly, preventing slight movement or shaking of the torque sensor 2.

[0031] Multiple locating pins are provided on both mounting surfaces. These pins are typically cylindrical, and their cross-sectional shape is not limited to circular, elliptical, square, or polygonal shapes. The cross-sectional shape of the locating pin can be the same as or different from that of the locating hole. When the cross-sectional shape of the locating pin and the locating hole is the same, the structural setup is simplified, while the circumferential rotation of the torque sensor 2 is restricted to a greater extent, reducing positioning offset caused by assembly clearances and resulting in higher positioning accuracy for the torque sensor 2. When the cross-sectional shape of the locating pin and the locating hole is different, it can accommodate minor deviations in the position of the locating holes of different specifications of torque sensors 2, or alignment deviations caused by component machining errors. For example, a circular locating pin can be paired with an oblong locating hole; or a square locating pin can be paired with an elliptical locating hole.

[0032] The locating pins extend into the receiving space in a direction perpendicular to the mounting surface, and the diameter of the locating pins is slightly smaller than the diameter of the locating holes. The distribution of the locating pins corresponds to the distribution of the locating holes on both sides of the torque sensor 2.

[0033] During assembly, at least one of the first mounting member 20 and the second mounting member 30 may be movably mounted on the base 10, or at least one of the first mounting member 20 and the second mounting member 30 may be fixed.

[0034] If the first mounting component 20 or the second mounting component 30 is movable, one of the first mounting component 20 and the second mounting component 30 can be connected to the base 10 via a slide rail or slide groove, or both the first mounting component 20 and the second mounting component 30 can be connected to the base 10 via slide rails or slide grooves. This allows at least one of the first mounting component 20 and the second mounting component 30 to translate along the extension direction of the slide rail or slide groove on the base 10. When assembling the torque sensor 2, the distance between the first mounting component 20 and the second mounting component 30 can be adjusted according to the thickness of the torque sensor 2. During the adjustment process, when the mounting surfaces of the first mounting component 20 and the second mounting component 30 are both in contact with the torque sensor 2, the positioning pin is inserted into the positioning hole, thereby fixing the torque sensor 2. After the first mounting component 20 and the second mounting component 30 are adjusted to the appropriate position, the first mounting component 20 or the second mounting component 30 can be fixed by locking components to prevent the first mounting component 20 or the second mounting component 30 from loosening. This setup allows for both fixing the torque sensor 2 and adaptability to torque sensors 2 of different thicknesses.

[0035] If the first mounting member 20 and the second mounting member 30 are fixed to the base 10, a guide structure can be provided on the first mounting member 20 and the second mounting member 30. A positioning pin is assembled into the guide structure via a connector. The positioning pin can move in a direction perpendicular to the mounting surface. During assembly, the torque sensor 2 can be placed between the first mounting member 20 and the second mounting member 30 first, and then fixed using the positioning pin. In this case, a positioning structure can typically be provided at the bottom between the first mounting member 20 and the second mounting member 30 to initially position the torque sensor 2.

[0036] When assembling the torque sensor 2, the torque sensor 2 must first be assembled with the second mounting part 30, then the first mounting part 20 is fixed to the other side of the torque sensor 2, and then the positioning pin on the first mounting part 20 is moved.

[0037] After the torque sensor 2 is assembled, the two side surfaces of the torque sensor 2 can be respectively attached to the mounting surfaces of the first mounting component 20 and the second mounting component 30. The positioning pin of the first mounting component 20 is inserted into the positioning hole on one side of the torque sensor 2, and the positioning pin of the second mounting component 30 is inserted into the positioning hole on the other side of the torque sensor 2, thereby fixing the torque sensor 2 on both sides.

[0038] In summary, the base 10 provides support for the entire torque sensor calibration device, making it easy to move the entire device. When assembling the torque sensor 2, the first mounting member 20 and the second mounting member 30 are used to place the torque sensor 2 within the space they form. At this time, the positioning holes on both sides of the torque sensor 2 in the thickness direction can be directly aligned with the positioning pins on the side of the first mounting member 20 closest to the torque sensor 2, and with the positioning pins on the side of the second mounting member 30 closest to the torque sensor 2. Moving the positioning pins on both sides allows them to pass into the positioning holes without the need for additional auxiliary tools or alignment, significantly simplifying the assembly process of the torque sensor 2 and saving assembly time.

[0039] A torque input component 40 is provided on the side of the second mounting component 30 opposite to the first mounting component 20. The second mounting component 30 connects the torque sensor 2 and the torque input component 40, which can shorten the transmission path of torque from the torque input component 40 to the torque sensor 2. The torque input component 40 is fixed on the second mounting component 30, and the positioning pin is also fixed on the second mounting component 30. There is no need for repeated assembly and adjustment. Based on the positioning pin on the second mounting component 30, the positioning of the torque sensor 2 can be ensured to always maintain a coaxial state with the torque input component 40 when bearing torque, thereby improving the reliability of the calibration results.

[0040] According to the torque sensor calibration device of this application embodiment, before assembling the torque sensor 2, the positioning pin is assembled onto the first mounting part 20 and the second mounting part 30, further optimizing the assembly process and positioning accuracy. Operators do not need to perform additional installation and adjustment of the positioning pin when installing the sensor; they only need to align the torque sensor 2 with the positioning pin, further reducing on-site operation steps and shortening assembly time. For example, the torque sensor 2 can be first inserted into the positioning pin on the second mounting part 30. At this time, one side of the torque sensor 2 has been initially positioned by the positioning pin. Then, the first mounting part 20 is moved, or the positioning pin pre-installed on the first mounting part 20 is moved into the positioning hole on the other side of the torque sensor 2. This ensures the docking accuracy of the positioning holes on both sides through the preset position of the positioning pin, thereby improving assembly efficiency and ensuring the coaxiality of the torque sensor 2 and the torque input part 40, ensuring more reliable calibration results.

[0041] According to the torque sensor calibration device of the present application embodiment, a guide member 50 is provided on the base 10. The guide member 50 extends in a straight line. A first mounting member 20 is slidably engaged on the guide member 50, and a second mounting member 30 is fixed on the guide member 50.

[0042] The guide component 50 has a linear structure and can be a guide rail, guide groove, or guide rod. If the guide component 50 is a guide rail, slots are provided at the bottom of the first mounting component 20 and the second mounting component 30. These slots can be directly provided on the first mounting component 20 and the second mounting component 30, or a first slider 60 can be provided at the bottom of the first mounting component 20, a second slider 70 at the bottom of the second mounting component 30, and slots can be provided on the first slider 60 and the second slider 70. In this way, the sliders, as easily worn parts, can be replaced individually. Simultaneously, the mounting components (first mounting component 20 and second mounting component 30) and the sliders (first slider 60 and second slider 70) can be machined separately, reducing machining difficulty and production costs. The cross-sectional shape of the slots can be rectangular, T-shaped, or dovetail-shaped, etc., adapted to the cross-sectional shape of the guide component 50.

[0043] The guide member 50 extends in a straight line, ensuring that the two mounting surfaces of the first mounting member 20 and the second mounting member 30 remain parallel during relative movement, thereby ensuring that the locating pin can be precisely aligned with the torque sensor 2. For torque sensors 2 of different specifications, the distance between the first mounting member 20 and the second mounting member 30 can be adjusted simply by pushing the first mounting member 20 along the guide member 50, without the need for recalibration, thus improving assembly efficiency.

[0044] The second mounting member 30 can be locked onto the guide member 50 by a second locking member provided on the second slider 70 and locking it with the second mating member provided on the base 10. Positioning the second mounting member 30 on the base 10 via the guide member 50 ensures that the first mounting member 20 remains parallel to the mounting surface of the second mounting member 30 during movement.

[0045] To simplify positioning, the mounting surface of the first mounting member 20 is typically perpendicular to the top surface of the base 10, and the mounting surface of the second mounting member 30 is also perpendicular to the top surface of the base 10. The guide member 50 extends horizontally along the top surface of the base 10. When the first mounting member 20 and the second mounting member 30 slide along the guide member 50, the vertical mounting surface always maintains its direction and will not shift at an angle with the sliding.

[0046] To further improve the reliability of the assembly of the first mounting component 20 and the second mounting component 30 with the guide component 50, stop blocks 51 or limiting protrusions can be provided on both sides of the guide component 50 to prevent the first mounting component 20 or the second mounting component 30 from sliding excessively and detaching from the guide component 50.

[0047] like Figure 1 As shown, in the torque sensor 2 detection device according to the embodiment of this application, a first locking member 61 is provided on the first mounting member 20, and a plurality of first mating members 11 are provided on the base 10. The plurality of first mating members 11 are spaced apart along the extension direction of the guide member 50. The first locking member 61 can selectively lock or disengage with any of the first mating members 11. When the first locking member 61 is locked with the first mating member 11, the position of the first mounting member 20 on the guide member 50 is fixed.

[0048] The first locking element 61 can be set as a cylindrical rod, a metal spring, or a hook, etc.

[0049] When the first locking member 61 is a cylindrical rod, it is perpendicular to the sliding direction of the first mounting member 20. For ease of assembly, the first locking member 61 is mounted on the first slider 60, passing through the first slider 60 and protruding from the top of the first slider 60. The bottom of the first locking member 61 can be threaded, and the first mating member 11 can be a threaded hole located on the base 10. When the position of the first mounting member 20 needs to be adjusted, the first locking member 61 is rotated, causing it to disengage from the threaded hole. The first slider 60 is released from its constraint with the base 10, and the first mounting member 20 can move synchronously along the guide member 50 with the first slider 60. After the first mounting member 20 has moved to the target position, the first locking member 61 is rotated to lock with the threaded hole, thereby locking the first mounting member 20 to the target position. The bottom surface of the first slider 60 is in contact with the base 10, which makes the first slider 60 more stable during sliding and also makes the first mounting member 20 more stable when it is in the target position.

[0050] Multiple spaced first mating parts 11 are provided on the side of the guide 50, which can be adjusted according to different specifications of torque sensors 2, thereby improving the adaptability of the torque sensor calibration device.

[0051] Similarly, the second locking element can be set as a cylindrical rod, a metal spring, or a hook, etc.

[0052] When the second locking member is a cylindrical rod, it is perpendicular to the base 10. For ease of assembly, the second locking member is mounted on the second slider 70, passing through the second slider 70 and protruding from the top of the second slider 70. The bottom of the second locking member can be threaded, and the second mating part can be a threaded hole located on the base 10. When the second mounting part 30 needs to be assembled, the second locking member is rotated to lock with the threaded hole, thereby locking the second mounting part 30 onto the guide 50. The bottom surface of the second slider 70 is in contact with the base 10, which increases the contact area between the second slider 70 and the base 10, making the second mounting part 30 more stable when it is on the guide 50.

[0053] like Figure 1 As shown, in the torque sensor calibration device according to an embodiment of this application, the second mounting member 30 includes a locking part 32 and a mounting base 33. The mounting base 33 is provided with the locking part 32 on the side near the first mounting member 20. A bearing is connected between the locking part 32 and the mounting base 33. A torque input member 40 is provided on the side of the mounting base 33 away from the locking part 32.

[0054] The locking part 32 can be disc-shaped or ring-shaped. The side of the locking part 32 near the first mounting member 20 is a flat mounting surface. This mounting surface is parallel to the mounting surface of the first mounting member 20 and perpendicular to the top surface of the base 10. A plurality of second positioning pins are also provided on the mounting surface, and the second positioning pins extend in a direction perpendicular to the mounting surface.

[0055] The mounting base 33 is a block-shaped or stepped structure with a certain thickness. The thickness direction of the mounting base 33 extends along the central axis of the locking part 32. The side of the mounting base 33 near the locking part 32 is provided with a mounting groove that is adapted to the locking part 32.

[0056] The bearing has a ring-shaped structure and is nested between the locking part 32 and the mounting base 33. The side of the locking part 32 closest to the torque sensor 2 is positioned together with the torque sensor 2 by a second locating pin passing through a locating hole. Since the first locating pin on the first mounting member 20 restricts the rotational freedom of the torque sensor 2, the locking part 32 also remains stationary along with the torque sensor 2, ensuring the stability of the torque sensor 2's position during detection and avoiding detection errors caused by the rotation of the torque sensor 2 itself. The mounting base 33 is rigidly connected to the torque input member 40 and also remains stationary during detection. Machining errors may occur during the processing of the locking part 32 and the mounting base 33, resulting in slight deviations in their coaxiality. By using a bearing, these deviations can be absorbed, ensuring that the locking part 32 and the mounting base 33 remain stationary while avoiding stress concentration and ensuring uniform torque transmission.

[0057] The torque input component 40 can be in the form of a column or a flange. When it is in the form of a column, the torque input component 40 extends horizontally. The end of the torque input component 40 near the mounting base 33 can be fixed by bolts, welding or other connection structures, while the end of it away from the mounting base 33 in the horizontal direction can be provided with bolt holes or hooks to connect to external loading devices, such as weights 3 or hydraulic loaders.

[0058] For example, the mounting base 33 has a mounting hole on the side opposite to the locking part 32, which is used to fix it to the torque input member 40 by means of a fastener 36. The mounting hole can be a through hole or a blind hole.

[0059] According to the torque sensor calibration device of the present application embodiment, the bearing can compensate for the coaxiality machining error of the locking part and the mounting base 33, thereby reducing the machining cost of the torque sensor calibration device.

[0060] like Figure 1 As shown, in the torque sensor calibration device according to the embodiment of this application, the first mounting member 20 is provided with a plurality of first mounting holes 22, and a positioning pin is detachably fixed in at least a portion of the first mounting holes 22; the second mounting member 30 is provided with a plurality of second mounting holes 31, and a positioning pin is detachably fixed in at least a portion of the second mounting holes 31.

[0061] For ease of explanation, the positioning pin fixed in the first mounting hole 22 is defined as the first positioning pin, and the positioning pin fixed in the second mounting hole 31 is defined as the second positioning pin.

[0062] At least some of the first mounting holes 22 are detachably fixed with locating pins. That is, the number of first mounting holes 22 can be greater than or equal to the number of first locating pins. When the number of first mounting holes 22 is greater than the number of first locating pins, corresponding first locating pins can be fixed in the first mounting holes 22 at different positions according to different specifications of torque sensors 2, thus improving the versatility of the first mounting component 20 side. First mounting holes 22 that are not currently in use can be left unused. Similarly, at least some of the second mounting holes 31 are detachably fixed with locating pins. That is, the number of second mounting holes 31 can be greater than or equal to the number of second locating pins. When the number of second mounting holes 31 is greater than the number of second locating pins, corresponding second locating pins can be fixed in the second mounting holes 31 at different positions according to different specifications of torque sensors 2, thus improving the versatility of the second mounting component 30 side. Second mounting holes 31 that are not currently in use can be left unused.

[0063] The first mounting hole 22 and the first locating pin can be threaded or connected by an interference fit locking mechanism, etc. The second mounting hole 31 and the second locating pin can be threaded or connected by an interference fit locking mechanism, etc.

[0064] The torque sensor calibration device according to the embodiments of this application can be adapted to various torque sensors 2 of different specifications, thus improving the versatility of the torque sensor calibration device. Furthermore, when adapting to torque sensors 2 of different specifications, it is only necessary to assemble positioning pins in the corresponding mounting holes (first mounting hole 22 and second mounting hole 31) according to the distribution of the positioning holes of the torque sensor 2. This simplifies operation, shortens operation time, and reduces operational difficulty.

[0065] In some embodiments, the first mounting hole 22 is an oblong hole, which extends radially or circumferentially along the central axis of the torque input member 40, and the positioning pin can be adjusted and fixed along the extension direction of the first mounting hole 22.

[0066] The torque input element 40 can be cylindrical, flange-shaped, etc. When the torque input element 40 is flange-shaped, the disc surface of the flange-shaped torque input element 40 is perpendicular to its own central axis. When the torque input element 40 is cylindrical, the cylindrical torque input element 40 is symmetrically arranged with respect to its own central axis.

[0067] The first mounting hole 22 is an oblong hole, extending radially or circumferentially along the central axis to accommodate torque sensors 2 with different positioning hole distributions. When the first mounting hole 22 is radially distributed along the central axis of the torque input component 40, the oblong holes are radially linearly distributed on the first mounting component 20, allowing the positioning pin to be finely adjusted radially and fixed by a locking component after adjustment. When the first mounting hole 22 is circumferentially distributed along the central axis of the torque input component 40, the oblong holes are arc-shaped with the central axis as the center, allowing the positioning pin to be finely adjusted circumferentially and fixed by a locking component after adjustment.

[0068] According to the embodiment of this application, the torque sensor calibration device can enhance the versatility of the torque sensor calibration device by setting the first mounting hole 22 as an oblong hole, and adapt it to a variety of torque sensors 2 of different specifications.

[0069] In some embodiments, the second mounting hole 31 is an oblong hole, which extends radially or circumferentially along the central axis of the torque input member 40, and the positioning pin can be adjusted and fixed along the extension direction of the second mounting hole 31.

[0070] The torque input element 40 can be cylindrical, flange-shaped, etc. When the torque input element 40 is flange-shaped, the disc surface of the flange-shaped torque input element 40 is perpendicular to its own central axis. When the torque input element 40 is cylindrical, the cylindrical torque input element 40 is symmetrically arranged with respect to its own central axis.

[0071] The second mounting hole 31 is an oblong hole, extending radially or circumferentially along the central axis to accommodate torque sensors 2 with different positioning hole distributions. When the second mounting hole 31 is radially distributed along the central axis of the torque input component 40, the oblong holes are radially linearly distributed on the second mounting component 30, allowing the positioning pin to be finely adjusted radially and fixed by a locking component after adjustment. When the second mounting hole 31 is circumferentially distributed along the central axis of the torque input component 40, the oblong holes are arc-shaped with the central axis as the center, allowing the positioning pin to be finely adjusted circumferentially and fixed by a locking component after adjustment.

[0072] According to the embodiment of this application, the torque sensor calibration device can enhance the versatility of the torque sensor calibration device by setting the second mounting hole 31 as an oblong hole, and adapt it to a variety of torque sensors 2 of different specifications.

[0073] like Figure 1 and Figure 2As shown, in the torque sensor calibration device according to the embodiment of this application, the torque input member 40 has two support arms 41 extending along the same straight line. The central axis of the torque input member 40 is perpendicular to the extension direction of the support arms 41, and the two support arms 41 are respectively disposed on both sides of the central axis.

[0074] The two support arms 41 are rod-shaped or plate-shaped structures, extending along the same straight line with their respective extension directions perpendicular to the central axis. The two support arms 41 are located on opposite sides of the central axis. When the external loading device applies force sequentially through the support arms 41 on one side, it ensures that the lever arms on both sides remain consistent, preventing inaccurate results caused by lever arm deviation.

[0075] According to the torque sensor calibration device of the present application embodiment, the torque input component 40 of the support arm 41 type can change the lever arm size by setting different arm lengths, or by changing the fixed position of the weight 3. It can be adapted to more measurement scenarios with only simple adjustments, and has stronger versatility.

[0076] like Figure 2 As shown, in some embodiments, the second mounting member 30 is provided with a plurality of third mounting holes 35, which are distributed circumferentially along the central axis. The third mounting holes 35 are oblong holes and extend circumferentially along the central axis. The torque input member 40 is provided with an assembly hole, and fasteners 36 are inserted into the third mounting holes 35 and the assembly hole.

[0077] The number of third mounting holes 35 can be three, four, five, or six, etc. Multiple third mounting holes 35 are circumferentially spaced along the central axis. The third mounting holes 35 are oblong holes, which can extend in an arc shape or along a straight line. The mounting holes on the torque input component 40 are circular through holes or threaded holes, and their number is the same as the number of third mounting holes 35, with each mounting hole corresponding to one third mounting hole 35. Fasteners 36 are rigid connecting parts such as bolts and screws. When assembling the torque input component 40, align the mounting holes with the third mounting holes 35, insert the fasteners 36 into both the mounting holes and the third mounting holes 35 simultaneously, but do not lock them immediately. Adjust the torque input component 40 to ensure that the two support arms 41 are in a horizontal position, and then lock the torque input component 40 using the fasteners 36.

[0078] During the adjustment of the torque input component 40, because the third mounting hole 35 is an oblong hole, the torque input component 40 can rotate slightly around its own central axis. The rod of the fastener 36, which passes through the assembly hole and the third mounting hole 35, will slide along the extension direction of the oblong hole. This allows the user to precisely adjust the circumferential angle of the torque input component 40 until the two support arms 41 are completely horizontal. After adjustment, tighten the fastener 36.

[0079] The torque sensor calibration device according to the embodiments of this application can meet the requirements for adjusting the horizontal state of the torque input component 40 by setting the third mounting hole 35 as an oblong hole. At the same time, it can also accommodate the machining and assembly errors of the second mounting component 30 and the torque input component 40, simplifying the adjustment operation and ensuring the accuracy of subsequent calibration.

[0080] like Figure 1 As shown, in some embodiments, each free end of the support arm 41 is provided with at least one weight hanging shaft 42, and the weight hanging shafts 42 on the two support arms 41 are symmetrically arranged.

[0081] The weight hanging shaft 42 is typically cylindrical or stepped, extending vertically from the end face or side of the free end of the support arm 41. The extension direction of the weight hanging shaft 42 is perpendicular to the extension direction of the support arm 41 and parallel to the central axis. At least one weight hanging shaft 42 can be provided at the free end of each support arm 41, for example, one, two, or three. The weight hanging shafts 42 on the two support arms 41 are symmetrically arranged; that is, the number, size, and shape of the weight hanging shafts 42 on the left support arm 41 are completely identical to the number, size, and shape of the weight hanging shafts 42 on the right support arm 41. The vertical distance from the left weight hanging shaft 42 to the central axis is equal to that of the corresponding right weight hanging shaft 42.

[0082] When a weight hanger 42 is set on one side, the distance from the weight hanger 42 on both sides to the central axis is the same. In this way, whether the weight 3 is loaded from the right side or the left side, the lever arm on both sides is the same.

[0083] When multiple weight hangers 42 are set on one side, a suitable lever arm can be selected for different range calibrations, thereby further improving the versatility of the torque sensor calibration device.

[0084] To facilitate the placement and removal of the weight 3, multiple adjustment holes can be provided at the free end of the support arm 41. A detachable weight hanging shaft 42 can be installed in the required adjustment holes to avoid interference from an unused weight hanging shaft 42 during the installation of the weight 3. The weight hanging shaft 42 can be a cylindrical shaft with a spring-loaded snap or a cylindrical shaft with external threads.

[0085] like Figure 3 As shown, in some embodiments, the torque sensor calibration device further includes two horizontal calibration blocks 80. The two horizontal calibration blocks 80 are respectively placed on both sides of the central axis and supported between the support arm 41 and the base 10. The support arm 41 is calibrated to a horizontal state by adjusting the position of the support arm 41 so that the top of the support arm 41 fits against the horizontal calibration block 80. After the support arm 41 is calibrated to a horizontal state, the horizontal calibration block 80 is moved away from the support arm 41 and the base 10.

[0086] The horizontal calibration block 80 has at least its top and bottom surfaces parallel, ensuring that after the horizontal calibration block 80 is placed on the base 10, the support arm 41 is adjusted so that its bottom surface is completely in contact with the top surface of the horizontal calibration block 80, even when the support arm 41 is in a horizontal state. After calibration is completed and the fastener 36 is locked, the calibration block is removed. The support arm 41 remains horizontal during subsequent torque transmission, ensuring the calibration accuracy of the calibration device.

[0087] According to the torque sensor calibration device of this application embodiment, a removable horizontal calibration block 80 is provided. The top and bottom surfaces of the horizontal calibration block 80 are used to adjust the horizontal state of the support arm 41, eliminating the need for external measuring tools such as a level. The calibration operation is simple, and calibration can be achieved simply by the contact of the various surfaces. The block can also be removed after calibration to avoid interfering with subsequent operations, thus improving the calibration reliability and operational efficiency of the calibration device.

[0088] In some embodiments, the first mounting member 20 is provided with a wire harness fixing hole 23, which is used to fix the wire harness connected to the torque sensor 2.

[0089] The wire harness fixing hole 23 is designed as a through hole, and its cross-sectional shape is not limited to, a circle or an ellipse. Of course, the cross-sectional shape of the wire harness fixing hole 23 can also be rectangular. In this case, the corners of each side wall joint can be rounded to prevent the wire harness from being worn. A buffer sleeve can also be installed inside the wire harness fixing hole 23 to further protect the wire harness.

[0090] The wiring harness fixing hole 23 can typically be located on the side or top of the first mounting component 20, depending on the requirements. It is understood that by using the wiring harness fixing hole 23 to organize the wiring harness connecting to the torque sensor 2, stable signal transmission from the torque sensor 2 can be ensured.

[0091] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms such as “a,” “an,” etc., used herein may also refer to the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0092] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0093] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications or equivalent substitutions made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A torque sensor calibration device, characterized by, include: Base; A first mounting component and a second mounting component together form a receiving space for limiting the torque sensor. The first mounting component and the second mounting component are provided with a plurality of positioning pins on the side close to each other. The positioning pins are used to pass through the positioning holes corresponding to the torque sensor along the thickness direction. The side of the second mounting component opposite to the first mounting component is provided with a torque input component. The second mounting component is used to connect the torque sensor and the torque input component.

2. The torque sensor calibration device according to claim 1, characterized in that, The base is provided with a guide member that extends in a straight line. The first mounting member is slidably engaged with the guide member, and the second mounting member is fixed to the guide member.

3. The torque sensor calibration device according to claim 2, characterized in that, The first mounting component is provided with a first locking component, and the base is provided with a plurality of first mating components. The plurality of first mating components are spaced apart along the extension direction of the guide component. The first locking component can selectively lock or disengage with any of the first mating components. When the first locking component locks with the first mating component, the position of the first mounting component on the guide component is fixed.

4. The torque sensor calibration device according to claim 2, characterized in that, The second mounting component includes a locking part and a mounting base. The locking part is provided on the side of the mounting base near the first mounting component. A bearing is connected between the locking part and the mounting base. The torque input component is provided on the side of the mounting base opposite to the locking part.

5. The torque sensor calibration device according to any one of claims 1-4, characterized in that, The first mounting component has a plurality of first mounting holes, and the positioning pin is detachably fixed in at least a portion of the first mounting holes. The second mounting component has a plurality of second mounting holes, and the positioning pin is detachably fixed in at least a portion of the second mounting holes.

6. The torque sensor calibration device according to claim 1, characterized in that, The torque input device has two support arms extending along the same straight line. The central axis of the torque input device is perpendicular to the extension direction of the support arms, and the two support arms are respectively located on both sides of the central axis.

7. The torque sensor calibration device according to claim 6, characterized in that, The second mounting component is provided with a plurality of third mounting holes, which are distributed circumferentially along the central axis. The third mounting holes are oblong holes and extend circumferentially along the central axis. The torque input component is provided with assembly holes, and fasteners are inserted into the third mounting holes and the assembly holes.

8. The torque sensor calibration device according to claim 6, characterized in that, Each of the free ends of the support arms is provided with at least one weight hanging shaft, and the weight hanging shafts on the two support arms are arranged symmetrically.

9. The torque sensor calibration device according to claim 7, characterized in that, It also includes two horizontal calibration blocks, which are respectively placed on both sides of the central axis and supported between the support arm and the base. The support arm is calibrated to a horizontal state by adjusting the position of the support arm so that the support arm fits against the top of the horizontal calibration block. After the support arm is calibrated to a horizontal position, the horizontal calibration block is removed from between the support arm and the base.

10. The torque sensor calibration device according to any one of claims 1-9, characterized in that, The first mounting component is provided with a wire harness fixing hole, which is used to fix the wire harness connected to the torque sensor.

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