CN217819179U

CN217819179U - Torque sensor calibrating device

Info

Publication number: CN217819179U
Application number: CN202221652789.5U
Authority: CN
Inventors: 郭毅军; 张新云; 杨永波
Original assignee: Chongqing Xishan Science and Technology Co Ltd
Current assignee: Chongqing Xishan Science and Technology Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-15
Anticipated expiration: 2032-06-29

Abstract

The utility model relates to a torque sensor calibrating device makes deformation space time reduction when utilizing being connected of first regulating part and crossbeam for connect the circumference lateral wall of through-hole and the laminating of the lateral wall of axis of rotation and hug closely the axis of rotation, when carrying out the weight loading on the crossbeam, the moment of torsion can be transmitted to the axis of rotation, transmits the moment of torsion to the torque sensor who treats the check-up and carries out the calibration of moment of torsion through the axis of rotation. And, the transmission of moment of torsion is carried out in the lateral wall parcel axis of rotation of through-hole's circumference lateral wall for the axis of rotation atress is even, avoids the axis of rotation to take place to warp, guarantees that the moment of torsion can be accurate, reliable transmission to the torque sensor who treats the check-up, guarantees the calibration accuracy. Moreover, because of the transmission of the moment of torsion is carried out in the rotatable mounting hole of wearing to locate first supporting seat of axis of rotation, avoid torque sensor's torsion shaft to receive radial force, guarantee the calibration accuracy.

Description

Torque sensor calibrating device

Technical Field

The utility model relates to an instrument detection technical field especially relates to a torque sensor calibrating device.

Background

In order to detect the torque of the power plant, a torque sensor is used. The torque sensor needs to be calibrated using a calibration balance before detection can take place. The conventional method is to connect a torsion shaft of the torque sensor with a cross beam of a calibration balance by using an axial screw, compare a displayed numerical value with a theoretical calculation numerical value by loading weight on the cross beam, and calibrate the numerical value or modify parameters, thereby realizing the calibration of the torque sensor. In the traditional method, in the calibration process, the torque sensor has radial stress, so that the calibration precision is influenced.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a torque sensor calibration apparatus for the problem of affecting the calibration accuracy.

The technical scheme is as follows:

in one aspect, a torque sensor calibration apparatus is provided, capable of calibrating a torque sensor having a torsion axis, including:

the calibration balance comprises a beam, a connecting through hole is formed in the middle of the beam, and a deformation space which is communicated with the connecting through hole and is variable in size is further formed in the beam;

the first support seat and the calibration balance are arranged at intervals, and the first support seat is provided with an installation through hole which is arranged corresponding to the connecting through hole;

the rotating shaft is rotatably arranged in the mounting through hole in a penetrating mode, one end of the rotating shaft is arranged in the connecting through hole in a penetrating mode, and the other end of the rotating shaft is connected with the torsion shaft; and

the first adjusting piece is connected with the cross beam to adjust the deformation space, and then the size of the connecting through hole is adjusted.

The technical solution is further explained below:

in one embodiment, the beam is provided with a deformation joint communicated with the connecting through hole, the deformation joint forms the deformation space, and the deformation joint extends along the length direction of the beam and penetrates through the beam along the axis direction of the connecting through hole.

In one embodiment, the crossbeam is further provided with a deformation hole arranged in parallel with the central axis of the connecting through hole, the deformation hole is communicated with the connecting through hole through the deformation joint, and the deformation hole is communicated with the deformation joint to form the deformation space.

In one embodiment, the number of the deformation holes is two, the two deformation holes are respectively arranged on two opposite sides of the deformation joint, and the connecting through hole is arranged between the two deformation holes.

In one embodiment, two deformation holes are axially symmetrically arranged about the connecting through hole.

In one embodiment, the torque sensor calibration device further comprises a coupler, one end of the coupler is used for being connected with the rotating shaft, and the other end of the coupler is used for being connected with the torsion shaft.

In one embodiment, the torque sensor calibration device further includes a rotating bearing, the rotating bearing is installed in the installation through hole, and an inner ring of the rotating bearing is sleeved on an outer side wall of the rotating shaft.

In one embodiment, the torque sensor calibration device further includes a packing assembly, and the packing assembly is in interference fit with both the rotating shaft and the first supporting seat to limit the axial play of the rotating shaft.

In one embodiment, the torque sensor calibration device further comprises an installation sleeve and a second adjusting piece, the installation sleeve is arranged in the installation through hole, the installation sleeve is provided with an installation cavity, an adjusting notch penetrating through the installation cavity and the outer side of the installation sleeve is arranged on the side wall of the installation sleeve, the adjusting notch is arranged along the axial direction of the installation sleeve and penetrates through the side wall of the installation sleeve, the rotating bearing is arranged in the installation cavity, and the second adjusting piece is connected with the first supporting seat to stretch into the installation through hole and abut against the installation sleeve to be matched with the installation sleeve so as to adjust the size of the adjusting notch, so that the size of the installation cavity is adjusted.

In one embodiment, the mounting sleeve is further provided with an adjusting hole which is arranged in parallel with the central axis of the mounting cavity and communicated with the mounting cavity, and the adjusting hole and the adjusting notch are respectively arranged on two opposite sides of the mounting cavity.

In one embodiment, the adjusting hole and the mounting cavity are arranged at an interval, the mounting sleeve is further provided with an adjusting slit for communicating the adjusting hole and the mounting cavity, and the adjusting slit penetrates through the mounting sleeve along the axial direction of the mounting sleeve.

In one embodiment, the torque sensor calibration device further includes a second support seat and a locking member, the second support seat is provided with an installation portion for the torque sensor to be installed, the locking member is disposed on one side of the second support seat away from the first support seat, and the locking member is used for locking a torsion shaft of the torque sensor.

In one embodiment, the central axis of the first adjusting piece and the central axis of the connecting through hole form an included angle; the first adjusting piece is set to be an adjusting bolt, threaded holes are formed in two opposite side walls of the deformation space, and the adjusting bolt can be in threaded connection with the two threaded holes; or the first adjusting piece is arranged as an adjusting pin, pin holes are formed in two opposite side walls of the deformation space, and the adjusting pin can be in inserting fit with the two pin holes.

The torque sensor calibration device of the above embodiment, when utilizing the connection of first regulating part and crossbeam and making the deformation space reduce for the circumference lateral wall of connect the through-hole is laminated with the lateral wall of axis of rotation and is hugged closely the axis of rotation, carries out weight loading when the crossbeam, and the moment of torsion can be transmitted to the axis of rotation, transmits the moment of torsion to the torque sensor who treats the check through the axis of rotation and carries out the calibration of moment of torsion. And, because the transmission of moment of torsion is carried out in the lateral wall parcel of the axis of rotation of connecting hole's circumference lateral wall for the axis of rotation atress is even, avoids the axis of rotation to take place to warp, guarantees that the moment of torsion can be accurate, reliable transmission to the torque sensor who treats the check-up, guarantees the calibration accuracy. And compared with the traditional mode that the torsion shaft of the torque sensor to be verified is connected with the cross beam through the axial screws, the torsion shaft of the torque sensor is prevented from being subjected to radial force due to the fact that the deformation space is adopted to clamp the rotating shaft to transmit torque, and the calibration precision is guaranteed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

FIG. 1 is a schematic diagram of a torque sensor calibration apparatus according to an embodiment;

FIG. 2 is an enlarged fragmentary view of a portion of the torque sensor calibration device A of FIG. 1;

FIG. 3 is a cross-sectional view of the torque sensor calibration device B-B of FIG. 1;

FIG. 4 is an enlarged partial view of a portion C of the torque sensor calibration device of FIG. 3;

FIG. 5 is a schematic diagram of the calibration balance of the torque sensor calibration apparatus of FIG. 1.

Description of reference numerals:

100. calibrating the balance; 110. a cross beam; 111. a connecting through hole; 112. deformation joints; 113. a deformation hole; 120. adjusting the nut; 200. a first support base; 210. mounting a through hole; 300. a rotating shaft; 400. a first adjustment member; 500. a coupling; 600. a rotating bearing; 700. a package assembly; 800. a second adjustment member; 900. a second support seat; 910. a locking member; 1000. a torque sensor; 1100. a torsion shaft; 2000. installing a sleeve; 2100. a mounting cavity; 2200. adjusting the gap; 2300. an adjustment hole; 2400. and (6) adjusting the seam.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, a torque sensor calibration device is provided that is capable of accurately calibrating the torque of a torque sensor.

The torque sensor may be an existing static torque sensor or an existing dynamic torque sensor. The torque sensor has a torsion shaft 1100.

As shown in fig. 1 to 4, in detail, the torque sensor calibration apparatus includes a calibration balance 100, a first support 200, a rotation shaft 300, and a first adjusting member 400.

As shown in fig. 5, in which the calibration balance 100 includes a beam 110, both ends of the beam 110 have hooks and trays, weight loading is performed by mounting weights on the hooks or placing weights on the trays. In addition, in order to more conveniently adjust the cross beam 110 to be in a horizontal state, adjusting nuts 120 may be further disposed at two ends of the cross beam 110, and the length of the force arm may be adjusted by rotating the adjusting nuts 120, so that the cross beam 110 may be conveniently and accurately adjusted to be in a horizontal state.

As shown in fig. 5, specifically, both ends of the cross beam 110 are provided with external threads, the two adjusting nuts 120 are respectively sleeved on the external threads at both ends of the cross beam 110, and the adjusting nuts 120 are close to or far away from the middle of the cross beam 110 by rotating the adjusting nuts 120, so as to adjust the length of the arm, and further adjust the cross beam 110 to a horizontal state.

Of course, in other embodiments, the beam 110 can also be adjusted to be horizontal by mounting weights.

As shown in fig. 2 and 5, a connection through hole 111 is provided in the middle of the beam 110, that is, the connection through hole 111 is opened in the middle of the two ends of the beam 110, so that the central axis of the connection through hole 111 passes through the center of gravity of the beam 110. Meanwhile, the beam 110 is further provided with a deformation space communicated with the connecting through hole 111, and the size of the deformation space can be changed.

The first support base 200 and the calibration balance 100 are spaced apart from each other, and the first support base 200 is provided with a mounting through hole 210 corresponding to the connecting through hole 111.

It can be understood that, in the actual use process, the first supporting seat 200 may be fixed on the workbench by means of screw connection, etc., so that the first supporting seat 200 can provide stable and reliable support for the rotating shaft 300.

Specifically, as shown in fig. 2, the first supporting seat 200 is spaced left and right from the cross member 110, and a central axis of the mounting through hole 210 is collinear with a central axis of the connecting through hole 111.

As shown in fig. 4, wherein, the rotation axis 300 is rotatable to be worn to locate the installation through hole 210 to make one end of rotation axis 300 be located one side of first supporting seat 200 and wear to locate in connecting through hole 111, make the other end of rotation axis 300 be located the opposite side of first supporting seat 200 and be connected with the torsion shaft 1100 of the torque sensor who treats the verification, so, when rotation axis 300 rotates relative to installation through hole 210, can drive torsion shaft 1100 synchronous rotation.

After one end of the rotation shaft 300 is inserted into the connection through hole 111, the first adjustment member 400 is connected to the cross beam 110 to adjust the size of the deformation space, and thus, the size of the connection through hole 111 is adjusted.

Specifically, when the deformation space is reduced by the connection of the first adjuster 400 and the cross member 110, the circumferential side wall of the connection through hole 111 is brought into contact with the outer side wall of the rotating shaft 300 to hold the rotating shaft 300 tightly, and when the weight is applied to the cross member 110, the torque can be transmitted to the rotating shaft 300, and the torque is transmitted to the torque sensor to be verified through the rotating shaft 300 to calibrate the torque. And, because the transmission of moment of torsion is carried out to the lateral wall of the circumference lateral wall parcel axis of rotation 300 of connect the through-hole 111 for axis of rotation 300 atress is even, avoids axis of rotation 300 to take place to warp, guarantees that the moment of torsion can be accurate, reliable transmission to the torque sensor who treats the check-up, guarantees the calibration accuracy. In addition, compared with the conventional mode that the torsion shaft 1100 of the torque sensor to be verified is connected with the cross beam 110 by the axial screws, the torsion shaft 1100 of the torque sensor is prevented from being subjected to radial force and the calibration accuracy is ensured because the deformation space is adopted to clamp the rotating shaft 300 for torque transmission.

In one embodiment, the central axis of the first adjusting member 400 and the central axis of the connecting through hole 111 are arranged at an included angle, and the first adjusting member 400 is arranged as an adjusting bolt, two side walls opposite to each other in the deformation space are provided with threaded holes, the adjusting bolt is in threaded connection with the two threaded holes, and the threaded holes are screwed in or out through the adjusting bolt, so that the two side walls opposite to each other in the deformation space are close to or away from each other, and then the deformation space becomes smaller or larger, and then the connecting through hole 111 can hold or loosen the rotating shaft 300.

In another embodiment, the central axis of the first adjusting member 400 and the central axis of the connecting through hole 111 are arranged at an included angle, and the first adjusting member 400 is provided with an adjusting pin, two opposite side walls of the deformation space are provided with pin holes, the adjusting pin is in insertion fit with the two pin holes, the pin holes are inserted or pulled out through the adjusting pin, so that the two opposite side walls of the deformation space are close to or away from each other, and further the deformation space is reduced or enlarged, and further the connecting through hole 111 can be tightly held or loosened on the rotating shaft 300.

Preferably, the central axis of the first adjusting member 400 is disposed perpendicular to the central axis of the connection through-hole 111.

In one embodiment, the beam 110 is provided with a deformation joint 112 communicating with the connection through-hole 111, and a deformation space is formed through the deformation joint 112. The deformation joint 112 extends in the longitudinal direction of the cross member 110, and the deformation joint 112 penetrates the cross member 110 in the axial direction of the connection through hole 111. In this way, when the width of the deformation joint 112 is reduced along the width direction of the cross beam 110 by the connection of the first adjusting piece 400 and the cross beam 110, the circumferential side wall of the connecting through hole 111 is attached to the outer side wall of the rotating shaft 300 to clasp the rotating shaft 300; when the width of the deformation joint 112 is increased in the width direction of the cross beam 110 by the connection of the first adjustment member 400 to the cross beam 110, the rotation shaft 300 is loosened such that the circumferential side wall of the connection through hole 111 is spaced apart from the outer side wall of the rotation shaft 300.

As shown in fig. 2 and 5, the cross beam 110 may be provided with a deformation hole 113 provided parallel to the central axis of the connection through hole 111, that is, the central axis of the deformation hole 113 and the central axis of the connection through hole 111 may be parallel to each other. Wherein, the deformation hole 113 and the connection through hole 111 are communicated with each other through the deformation joint 112, so the deformation hole 113 and the deformation joint 112 are communicated with each other to form a larger deformation space, and moreover, the deformation hole 113 and the connection through hole 111 are arranged at intervals. So, first regulating part 400 can carry out regulation by a larger margin to the deformation space when being connected with crossbeam 110, be convenient for stretch into in connect the via hole 111 with axis of rotation 300, also make connect the circumferential side wall of via hole 111 can be inseparabler hug closely the lateral wall of axis of rotation 300, avoid crossbeam 110 and axis of rotation 300 to take place relative rotation.

As shown in fig. 2 and 5, in one embodiment, there are two deformation holes 113, two deformation holes 113 are respectively disposed on two opposite sides of the deformation joint 112, and the connecting through hole 111 is disposed between the two deformation holes 113. Thus, when the first adjusting member 400 is connected with the cross beam 110 to adjust the deformation space, the deformation space is more easily deformed by the deformation holes 113 distributed on both sides of the deformation joint 112, and the deformation space can be deformed only by applying a smaller adjusting force, which is more labor-saving and convenient.

As shown in fig. 2 and 5, the two deformation holes 113 are disposed in axial symmetry with respect to the connection through hole 111. So, make the deformation in deformation space more even to make connect the circumferential side wall homoenergetic of through hole 111 and the outer lateral wall of axis of rotation 300 laminate mutually and apply even power of holding tightly to axis of rotation 300, and then make axis of rotation 300 atress even and can not take place to warp.

Specifically, the deformation joint 112 extends left and right, one deformation hole 113 is located on the left side of the deformation joint 112, the other deformation hole is located on the right side of the deformation joint 112, and the connecting through hole 111 is located in the middle of the deformation joint 112. Also, the center axes of the two deformation holes 113 are disposed in axial symmetry with respect to the center axis of the connection through-hole 111. Moreover, the diameter of the deformation hole 113 is larger than the width of the deformation joint 112, facilitating the deformation of the deformation space.

In order to facilitate the connection of the rotating shaft 300 and the torsion shaft 1100, the torque sensor calibration device further includes a coupling 500 as shown in fig. 1, 3, and 4.

Specifically, as shown in fig. 1, 3 and 4, one end of the coupling 500 is used to connect to the rotating shaft 300, and the other end of the coupling 500 is used to connect to the torsion shaft 1100. In this way, the coupling 500 can simply and conveniently connect the rotating shaft 300 and the torsion shaft 1100, so that torque can be smoothly transmitted.

As shown in fig. 4, in order to prevent the friction between the rotating shaft 300 and the first supporting seat 200 from affecting the transmission of the torque, the torque sensor calibration apparatus further includes a rotating bearing 600. Wherein, the rotary bearing 600 is installed in the installation through hole 210, and the inner ring of the rotary bearing 600 is sleeved on the outer side wall of the rotary shaft 300. Therefore, the rotating bearing 600 is utilized to enable the rotating shaft 300 to rotate smoothly relative to the first supporting seat 200, influence on torque transmission caused by friction is avoided, and calibration accuracy is guaranteed.

As shown in fig. 4, more specifically, the inner ring of the rotary bearing 600 is sleeved on the outer sidewall of the rotary shaft 300, the outer ring of the rotary bearing 600 is encapsulated in the installation through hole 210, and the rotary shaft 300 can smoothly rotate relative to the first support base 200 by using the rolling fit between the outer ring and the inner ring to transmit torque.

As shown in fig. 4, further, the torque sensor calibration device also includes a packaging assembly 700.

Specifically, the packaging assembly 700 is in interference fit with both the rotating shaft 300 and the first supporting seat 200, so that the rotating shaft 300 can be restricted from axial movement by the packaging assembly 700.

More specifically, the packaging assembly 700 includes two retaining rings, the two retaining rings are respectively disposed on two opposite sides of the first supporting base 200, each retaining ring is sleeved on the rotating shaft 300 and is in interference fit with the side wall of the first supporting base 200, so that the two retaining rings are in interference fit with two opposite side walls of the first supporting base 200 respectively, thereby limiting the rotating shaft 300 from moving axially. Certainly, in order to facilitate installation of the retaining ring, a corresponding annular groove may also be provided on the rotating shaft 300, and the retaining ring may be sleeved in the annular groove to constrain and conflict the axial movement of the rotating shaft 300.

Of course, in other embodiments, the package assembly 700 may further include two limit pins, the two limit pins are respectively disposed on two opposite sides of the first support base 200, and each limit pin is inserted into the rotation shaft 300 and is in interference fit with the side wall of the first support base 200, so that the two limit pins are respectively in interference fit with two opposite side walls of the first support base 200, thereby limiting the rotation shaft 300 from axial movement. Of course, in order to facilitate the installation of the limit pin, a corresponding slot may be provided on the rotating shaft 300, and the limit pin may be inserted into the slot to restrict and interfere with the axial play of the rotating shaft 300.

As shown in fig. 2, in addition, in order to facilitate the encapsulation of the rotary bearing 600 in the mounting through-hole 210, the torque sensor calibration apparatus further includes a mounting sleeve 2000 and a second adjuster 800.

The mounting sleeve 2000 is disposed in the mounting through hole 210, the mounting sleeve 2000 is provided with a mounting cavity 2100, a side wall of the mounting sleeve 2000 is provided with an adjusting notch 2200 penetrating through the mounting cavity 2100 and the outer side of the mounting sleeve 2000, and the adjusting notch 2200 penetrates through the side wall of the mounting sleeve 2000 along the axial direction of the mounting sleeve 2000. And, the rotary bearing 600 is installed in the installation cavity 2100. Simultaneously, when second regulating part 800 is connected with first supporting seat 200, the one end of second regulating part 800 can stretch into in installation through-hole 210 and inconsistent with the lateral wall of installation cover 2000, and then can adjust the size of adjusting breach 2200, then adjust the size of the internal diameter of installation cavity 2100, finally can be simple, convenient encapsulate swivel bearing 600 in installation cavity 2100.

Specifically, when the length that second regulating part 800 stretched into in the installation through-hole 210 became long, the conflict power grow of the lateral wall of second regulating part 800 applied to installation cover 2000 to make regulation breach 2200 diminish, and then make the internal diameter of installation cavity 2100 diminish, make the circumference lateral wall of installation cavity 2100 and the laminating of the lateral wall of the outer lane of rolling bearing 600 and hug closely the outer lane, avoid rolling bearing 600 to take place to rotate relative first supporting seat 200, realize rolling bearing 600's encapsulation. When the length that second regulating part 800 stretched into in the installation through-hole 210 shortened, the conflict power that second regulating part 800 applyed to the lateral wall of installation cover 2000 became little to make regulation breach 2200 grow, and then make the internal diameter grow of installation cavity 2100, be convenient for put into installation cavity 2100 with rolling bearing 600's outer lane in, improved assembly efficiency.

In one embodiment, the length direction of the second adjusting member 800 is disposed at an angle to the axial direction of the mounting sleeve 2000, so as to facilitate the adjustment of the size of the adjusting notch 2200.

In one embodiment, the second adjusting member 800 is provided as an adjusting bolt, the first supporting seat 200 is provided with a threaded hole communicated with the mounting through hole 210, the adjusting notch 2200 is formed by connecting the adjusting bolt with the threaded hole in a threaded manner, the adjusting bolt is screwed into or out of the threaded hole, so that the adjusting bolt can be adjusted to extend into the mounting through hole 210, and then the interference force applied to the outer side wall of the mounting sleeve 2000 can be adjusted, and thus the size of the adjusting notch 2200 can be adjusted and the inner diameter of the mounting cavity 2100 can be synchronously adjusted, and further the mounting sleeve 2000 can be tightly held or loosened by the rotating bearing 600.

In another embodiment, the second adjusting member 800 is provided as an adjusting pin, the first supporting seat 200 is provided with a jack communicated with the installation through hole 210, the adjusting pin is inserted into or pulled out of the jack through the adjusting pin, thereby adjusting the length of the adjusting pin extending into the installation through hole 210, and further adjusting the abutting force applied to the outer side wall of the installation sleeve 2000, thereby adjusting the size of the adjustment gap 2200 and the inner diameter of the synchronous adjustment installation cavity 2100, and further enabling the installation sleeve 2000 to clasp or loosen the rotating bearing 600.

As shown in fig. 2, the mounting sleeve 2000 is further provided with an adjustment hole 2300 disposed parallel to the central axis of the mounting cavity 2100 and communicating with the mounting cavity 2100. The adjusting hole 2300 and the adjusting notch 2200 are respectively disposed on two opposite sides of the mounting cavity 2100. Thus, the adjusting hole 2300 and the adjusting notch 2200 are respectively located on two opposite sides of the rotating bearing 600, so that the variation range of the inner diameter of the mounting cavity 2100 is larger, and the inner diameter of the mounting cavity 2100 can be deformed only by applying smaller contact force to the mounting sleeve 2000, which is more labor-saving and convenient.

Further, the adjusting hole 2300 is spaced apart from the mounting cavity 2100, and the mounting sleeve 2000 is further provided with an adjusting slit 2400 for communicating the adjusting hole 2300 with the mounting cavity 2100, the adjusting slit 2400 penetrating the mounting sleeve 2000 in an axial direction of the mounting sleeve 2000. So, make and switch on through adjusting seam 2400 at a distance of interval between regulation hole 2300 and the installation cavity 2100, thereby can make the conflict power that the installation cover 2000 received can more even dispersion to both sides, make the range of change of the internal diameter of installation cavity 2100 bigger, in addition, only need apply littleer conflict power to installation cover 2000 can make the internal diameter of installation cavity 2100 take place to warp, more laborsaving and convenient.

Optionally, the diameter of the adjustment hole 2300 is larger than the width of the adjustment notch 2200 to facilitate deformation of the mounting cavity 2100.

Meanwhile, the torque sensor calibration device further includes a second support seat 900 and a locking member 910.

Wherein, second supporting seat 900 is equipped with the installation department that is used for supplying torque sensor to install, so, can utilize installation department and torque sensor's being connected to fix torque sensor at the position of awaiting measuring, be convenient for axis of rotation 300 is connected with torque sensor's torsion shaft 1100 and is carried out the moment of torsion and calibrate.

Specifically, the installation department can be realized through current modes such as spiro union or joint with torque sensor's installation, only need satisfy can to torque sensor install fixed in order to carry out the moment of torsion calibration can.

As shown in fig. 1, 3 and 4, the locking member 910 is disposed on a side of the second support base 900 facing away from the first support base 200, and the locking member 910 can lock the torsion shaft 1100 of the torque sensor 1000. Thus, the locking member 910 can prevent the torsion shaft 1100 of the torque sensor 1000 from synchronously rotating along with the rotating shaft 300, and ensure that the torsion shaft 1100 of the torque sensor 1000 can be calibrated stably and reliably.

Among other things, the locking member 910 is particularly suitable for locking the torsion shaft 1100 of the dynamic torque sensor on the side away from the first supporting seat 200.

Specifically, the locking of the torsion shaft 1100 of the torque sensor 1000 by the locking member 910 can be realized by an interference locking manner, for example, the torsion shaft 1100 of the torque sensor 1000 is interfered by a locking pin to be locked; the torque sensor can also be realized in a clamping locking manner, for example, a clamp is used for clamping the torsion shaft 1100 of the torque sensor 1000; it is sufficient that the torque sensor 1000 can be prevented from rotating synchronously with the rotation shaft 300 in the torsion shaft 1100.

Alternatively, when the dynamic torque sensor 1000 needs to perform torque calibration, after the dynamic torque sensor 1000 is mounted on the mounting portion, the torsion shaft 1100 of the dynamic torque sensor 1000 may be connected to the coupling 500, at this time, the cross beam 110, the rotating shaft 300, the coupling 500, and the dynamic torque sensor 1000 may all rotate relative to the first support base 200, after the cross beam 110 is adjusted to the horizontal state, the torsion shaft 1100 of the dynamic torque sensor 1000 is locked by the locking member 910, so that the cross beam 110 is kept in the horizontal state, that is, the cross beam 110 may be subjected to weight loading to perform torque calibration. Alternatively, after the dynamic torque sensor 1000 is mounted on the mounting portion, the torsion shaft 1100 of the dynamic torque sensor 1000 may be locked by the locking member 910, at this time, the torsion shaft 1100 of the dynamic torque sensor 1000 is not connected to the coupling 500, the cross beam 110, the rotating shaft 300, and the coupling 500 may all rotate relative to the first support base 200, and after the cross beam 110 is adjusted to be in the horizontal state, the torsion shaft 1100 of the dynamic torque sensor 1000 is further connected to the coupling 500, so that the cross beam 110 is maintained in the horizontal state, and the torque calibration may be performed by weight loading on the cross beam 110.

Optionally, after the static torque sensor 1000 is mounted on the mounting portion, the torsion shaft 1100 of the static torque sensor 1000 is not connected to the coupling 500, the cross beam 110, the rotating shaft 300, and the coupling 500 can all rotate relative to the first support base 200, and after the cross beam 110 is adjusted to be in a horizontal state, the torsion shaft 1100 of the static torque sensor 1000 is connected to the coupling 500 again, so that the cross beam 110 is kept in the horizontal state, that is, the cross beam 110 can be subjected to weight loading to calibrate the torque.

It will be appreciated by those skilled in the art that when torque calibration is performed on the torque sensor, the data can be displayed using a data line to interface data from an existing torque meter with the torque sensor. The weight loaded on the beam 110 is theoretically calculated, the corresponding weight is loaded by the corresponding weight, the display data is read, and the torque is calibrated by comparing the display data with the calculated value.

The "certain body" and the "certain portion" may be a part corresponding to the "member", that is, the "certain body" and the "certain portion" may be integrally formed with the other part of the "member"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain part" and "a certain part" in the present application are only one embodiment, and are not intended to limit the scope of the present application for reading convenience, and should be construed as equivalents of the present application as long as the features are included and the effects are the same.

It should be noted that, the components included in the "unit", "assembly", "mechanism" and "device" of the present application can also be flexibly combined, i.e., can be produced in a modularized manner according to actual needs, so as to facilitate the modularized assembly. The division of the above components in the present application is only one of the embodiments, which is convenient for reading and does not limit the scope of protection of the present application, and as long as the above components are included and the functions are the same, it should be understood that the present application is an equivalent technical solution.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. The term "and/or" as used in this disclosure includes any and all combinations of one or more of the associated listed items.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "fixed," "disposed," "secured" or "disposed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" with another element, the two elements may be fixed in a detachable connection manner or in an undetachable connection manner, and power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, which can be achieved in the prior art, and is not cumbersome. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A torque sensor calibration device capable of calibrating a torque sensor having a torsion axis, comprising:

2. The torque sensor calibration device according to claim 1, wherein a deformation joint communicated with the connection through hole is formed in the beam, the deformation joint forms the deformation space, and the deformation joint extends along the length direction of the beam and penetrates through the beam along the axis direction of the connection through hole.

3. The torque sensor calibration device according to claim 2, wherein the cross beam is further provided with a deformation hole arranged in parallel with the central axis of the connecting through hole, the deformation hole is communicated with the connecting through hole through the deformation joint, and the deformation hole is communicated with the deformation joint to form the deformation space.

4. The torque sensor calibration device according to claim 3, wherein the deformation holes are two, two deformation holes are respectively disposed on two opposite sides of the deformation joint, and the connecting through hole is disposed between the two deformation holes.

5. The torque sensor calibration device according to claim 4, wherein the two deformation holes are arranged axisymmetrically with respect to the connection through hole.

6. The torque sensor calibration device according to claim 1, further comprising a coupling, one end of the coupling being adapted to be connected to the rotating shaft and the other end of the coupling being adapted to be connected to the torsion shaft.

7. The torque sensor calibration device according to any one of claims 1 to 6, further comprising a rotation bearing, wherein the rotation bearing is installed in the installation through hole, and an inner ring of the rotation bearing is sleeved on an outer side wall of the rotation shaft.

8. The torque sensor calibration device of claim 7 further comprising a packaging member that is in interference fit with both the rotating shaft and the first support to limit axial play of the rotating shaft.

9. The torque sensor calibration device according to claim 7, further comprising a mounting sleeve and a second adjusting member, wherein the mounting sleeve is disposed in the mounting through hole, the mounting sleeve is provided with a mounting cavity, a regulating gap penetrating through the mounting cavity and the outer side of the mounting sleeve is formed in the side wall of the mounting sleeve, the regulating gap penetrates through the side wall of the mounting sleeve along the axial direction of the mounting sleeve, the rotating bearing is disposed in the mounting cavity, and the second adjusting member is connected with the first supporting seat to extend into the mounting through hole and abut against the mounting sleeve for matching so as to adjust the size of the regulating gap, thereby adjusting the size of the mounting cavity.

10. The torque sensor calibration device according to claim 9, wherein the mounting sleeve is further provided with an adjusting hole parallel to the central axis of the mounting cavity and communicating with the mounting cavity, and the adjusting hole and the adjusting notch are respectively disposed on two opposite sides of the mounting cavity.

11. The torque sensor calibration device according to claim 10, wherein the adjusting hole is spaced from the mounting cavity, and the mounting sleeve is further provided with an adjusting slit for communicating the adjusting hole with the mounting cavity, and the adjusting slit penetrates through the mounting sleeve along an axial direction of the mounting sleeve.

12. The torque sensor calibration device according to any one of claims 1 to 6, further comprising a second support seat and a locking member, wherein the second support seat is provided with a mounting portion for mounting the torque sensor, the locking member is disposed on a side of the second support seat away from the first support seat, and the locking member is used for locking a torsion shaft of the torque sensor.

13. The torque sensor calibration device according to any one of claims 1 to 5, wherein the central axis of the first adjusting member is arranged at an angle to the central axis of the connecting through hole;

the first adjusting piece is set to be an adjusting bolt, threaded holes are formed in two side walls opposite to the deformation space, and the adjusting bolt can be in threaded connection with the two threaded holes; or the first adjusting piece is arranged as an adjusting pin, two side walls opposite to the deformation space are provided with pin holes, and the adjusting pin can be in plug-in fit with the two pin holes.