Torque sensor measuring structure for teaching display

Abstract

The utility model relates to a torque sensor measuring structure for teaching display, which comprises a torque sensor, a driving assembly and a rotation stopping assembly, the driving assembly and the rotation stopping assembly are respectively arranged on two sides of the torque sensor, and the torque sensor comprises a shell and a transmission shaft penetrating through the shell. The driving assembly comprises a motor, a speed reducer and a mounting seat used for mounting the speed reducer, an output shaft of the speed reducer is connected with one end of the transmission shaft, the rotation stopping assembly comprises a rotary damper connected with the other end of the transmission shaft, and the rotary damper comprises a shell and an inner ring arranged on one side of the shell; the inner ring can rotate relative to the outer shell, and a rotation stopping block used for stopping the rotation of the rotation stopping damper is connected to the portion, below the rotation stopping damper, of the outer shell. The torque sensor measuring structure for teaching display can measure the real-time dynamic torque of the transmission shaft and the torque required by the motor to push the rotary damper, and is convenient for teaching display.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching instruments and equipment, and in particular to a torque sensor measuring structure used for teaching demonstration. Background Art

[0002] Torque is a special moment that causes an object to rotate. In the teaching process of mechanical, civil engineering, and architectural engineering majors in colleges and universities, the mechanical knowledge about torque is involved. A resistance strain gauge torque sensor is usually used to measure torque. The main body of the resistance strain gauge torque sensor is usually composed of an elastic shaft and a resistance strain gauge attached to its surface. When the shaft is subjected to torque, the shaft will produce a slight distortion, and the strain gauge attached to the shaft will change its resistance value accordingly. Through the Wheatstone bridge circuit, these changes in resistance value will be converted into electrical signals, and their magnitude is proportional to the torque. By measuring these electrical signals, the magnitude of the torque can be calculated. In the no-load state, the drive assembly drives the transmission shaft at one end to rotate. The torque sensor has no signal and cannot generate torque, so a load needs to be set at the other end of the transmission shaft to generate torque on the transmission shaft. In order to help students better master the relevant knowledge of torque measurement, a torque sensor measurement structure suitable for teaching experiments is needed. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects, a torque sensor measurement structure for teaching demonstration is provided, which can measure the real-time dynamic torque of the transmission shaft and the torque required for the motor to push the rotary damper, so as to facilitate teaching demonstration.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a torque sensor measuring structure for teaching demonstration, including a torque sensor and a driving component and a stop component respectively arranged on both sides of the torque sensor, the torque sensor including a shell and a transmission shaft passing through the shell, the driving component including a motor, a reducer and a mounting seat for installing the reducer, the output shaft of the reducer is connected to one end of the transmission shaft, the stop component includes a rotation damper connected to the other end of the transmission shaft, the rotation damper includes an outer shell and an inner ring arranged on one side of the outer shell, the inner ring can rotate relative to the outer shell, and the outer shell of the anti-rotation damper is connected to a stop block for preventing its rotation.

[0005] Compared with the prior art, the beneficial effect of the present solution is that the transmission shafts located on both sides of the torque sensor housing are respectively connected to the reducer output shaft and the rotary damper, driving the motor, and the reducer output shaft exerts a force on the transmission shaft to drive it to rotate. However, since the housing of the rotary damper is connected to a stop block for preventing its rotation, the rotary damper is equivalent to adding a load to the other end of the transmission shaft. At this time, relative rotation occurs between the transmission shafts, thereby generating torque. The real-time dynamic torque generated and the torque required for the motor to push the rotary damper are measured by the torque sensor, which is convenient for teaching demonstrations.

[0006] As a preferred embodiment of the utility model, the rotary damper is connected to one end of the transmission shaft through a mounting shaft, a first through hole is opened on the inner ring along its axial direction, a connecting portion for matching with the first through hole is provided at one end of the mounting shaft, and first connecting blocks are symmetrically arranged along the radial direction in the first through hole, and the sides where the two first connecting blocks are close to each other are both first planes, and the two sides of the connecting portion opposite to each other are both second planes for fitting with the first plane.

[0007] The beneficial effects of this solution are as follows: during installation, the connecting part provided at one end of the mounting shaft is inserted into the first through hole provided on the inner ring, thereby connecting the rotary damper to the mounting shaft, both sides of the connecting part are second planes, and the first through hole is provided with a first connecting block symmetrically along its radial direction, and both inner sides of the first connecting block are first planes. When the connecting part is inserted into the first through hole, the two first planes are respectively fitted with the two second planes, and the rest of the connecting part matches the first through hole, which can avoid relative rotation between the connecting part and the first through hole, thereby avoiding relative rotation between the mounting shaft and the inner ring, which affects the effect of the teaching demonstration.

[0008] As a preferred embodiment of the utility model, the shell is provided with a second through hole along its axial direction corresponding to the position of the first through hole, and a third connecting block is symmetrically arranged in the radial direction of the second through hole, and along the axial direction of the inner ring, each first connecting block is provided with a second connecting block on the side close to the shell, and the outer sides of the two second connecting blocks are arc surfaces that can match the inner side of the third connecting block, and the inner sides of the two second connecting blocks are third planes that can fit with the second plane.

[0009] The beneficial effects of this solution are as follows: during installation, the connecting part arranged at one end of the installation shaft is passed through the first through hole and the second through hole in sequence and clamped therewith, the inner and outer sides of the second connecting block arranged on one side of the inner ring are respectively the third plane and the arc surface, the second connecting block extends into the second through hole and matches with the third connecting block arranged in the second through hole through the arc surface on its outer side, so that the inner ring and the outer shell are connected more tightly, the second connecting block extends into the second through hole and fits with the second planes on both sides of the connecting part through the third plane on its inner side, so that the connecting part is clamped into the outer shell, and relative rotation between the connecting part and the second through hole can be avoided, thereby avoiding relative rotation between the installation shaft and the outer shell, which affects the effect of teaching demonstration.

[0010] As a preferred embodiment of the utility model, a hanging ear is provided on the outer circumferential surface of the shell along its radial direction, the anti-rotation block is located below the shell, and a groove for engaging with the hanging ear is opened on the upper side of the anti-rotation block.

[0011] The beneficial effects of this solution are as follows: during installation, the ear arranged on one side of the outer shell is inserted into the groove on the anti-rotation block, and the rotary damper is connected to one end of the transmission shaft through the installation shaft. When the output shaft of the reducer drives the transmission shaft to rotate, the groove limits the outer shell in the rotary damper, that is, limits the inner ring, thereby playing the role of load, so that the transmission shaft can generate torque and measure the magnitude of the torque generated by the torque sensor.

[0012] As a preferred embodiment of the utility model, a first connecting hole is opened on the side wall of the groove, and a second connecting hole corresponding to the position of the first connecting hole is opened on the hanging ear. The outer shell is fixed to the anti-rotation block by a connecting piece passing through the first connecting hole and the second connecting hole.

[0013] The beneficial effects of this solution are as follows: after the lug is inserted into the groove, the outer shell is fixed to the stop block by a connecting piece passing through the first connecting hole and the second connecting hole, and the outer shell is further limited, so that the connection between the outer shell and the stop block is more stable, preventing the lug from slipping out of the groove driven by the output shaft of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of an embodiment of a torque sensor measurement structure used for teaching demonstration of the utility model.

[0015] Figure 2 This is an exploded diagram of the torque sensor measurement structure used for teaching demonstration in the utility model.

[0016] Figure 3 It is a structural schematic diagram of the rotary damper and the mounting shaft.

[0017] Figure 4 A schematic diagram of the structure of the anti-rotation block. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to explain the present invention and will not limit the protection scope of the present invention.

[0019] The terms "first", "second" and the like in the specification, claims and embodiments of the present application are used to distinguish similar objects rather than to describe a specific order or sequential sequence.

[0020] The present invention is further described in detail below through preferred specific embodiments:

[0021] The figure marks in the drawings of the specification include: torque sensor 1, housing 101, transmission shaft 102, mounting seat 2, rotation damper 3, stop block 4, groove 401, first connecting hole 402, housing 5, second through hole 501, third connecting block 502, third plane 503, inner ring 6, first through hole 601, first connecting block 602, first plane 603, second connecting block 604, mounting shaft 7, connecting part 701, second plane 702, positioning hole 703, ear 8, second connecting hole 801, connecting part 9, motor 10, reducer 11, coupling 12.

[0022] As attached Figure 1 As shown: the torque sensor measurement structure used for teaching demonstration in this embodiment includes a torque sensor and a driving component and a stop component respectively arranged on both sides of the torque sensor, the driving component includes a reducer 11 and a mounting base 2 for mounting the reducer 11, the reducer output shaft is connected to one end of the transmission shaft 102 through a coupling 12, the stop component includes a rotation damper 3 connected to the other end of the transmission shaft 102 through a mounting shaft 7 and a stop block 4 for preventing the rotation damper 3 from rotating.

[0023] As attached Figure 3 As shown: the rotary damper 3 includes an outer shell 5 and an inner ring 6 arranged on one side of the outer shell 5, the inner ring 6 can rotate relative to the outer shell 5, the inner ring 6 is provided with a first through hole 601 along its axial direction, the first through hole 601 is symmetrically provided with first connecting blocks 602 along its radial direction, and the sides of the two first connecting blocks 602 close to each other are both first planes 603, one end of the mounting shaft 7 is provided with a mounting hole along its axial direction for connecting with the transmission shaft 102, and the circumference of the mounting shaft 7 is provided with a positioning hole 703 along its radial direction, and the other end of the mounting shaft 7 is provided with a connecting portion 701 for matching with the first through hole 601, and the two opposite sides of the connecting portion 701 are both second planes 702 for fitting with the first plane 603.

[0024] The shell 5 is provided with a second through hole 501 along its axial direction corresponding to the position of the first through hole 601, and a third connecting block 502 is symmetrically arranged in the radial direction inside the second through hole 501. Along the axial direction of the inner ring 6, a second connecting block 604 is provided on the side of each first connecting block 602 close to the shell 5, and the outer sides of the two second connecting blocks 604 are arc surfaces that can match the inner sides of the third connecting blocks 502, and the inner sides of the two second connecting blocks 604 are third planes 503 that can fit with the first plane 603.

[0025] As attached Figure 1 , Attachment Figure 3 and attached Figure 4 As shown: a lug 8 is provided on the outer circumferential surface of the shell 5 along its radial direction, the anti-rotation block 4 is located below the shell 5, a groove 401 for engaging with the lug 8 is opened on the upper side of the anti-rotation block 4, a first connecting hole 402 is opened on the side wall of the groove 401, and a second connecting hole 801 corresponding to the position of the first connecting hole 402 is opened on the lug 8, and the shell 5 is fixed to the anti-rotation block 4 by passing a connecting member 9 through the first connecting hole 402 and the second connecting hole 801. In this embodiment, the connecting member 9 is preferably a screw.

[0026] Specific use process:

[0027] When conducting a teaching demonstration, first install the drive assembly on the mounting base 2, and connect the reducer output shaft to the transmission shaft 102 through the coupling 12, and then insert the lug 8 provided on the housing 5 of the rotary damper 3 into the groove 401 provided on the upper side of the stop block 4, and fix the housing 5 on the stop block 4 by screws passing through the first connecting hole 402 and the second connecting hole 801.

[0028] After fixing the outer shell 5 to the stop block 4, the connecting portion 701 on the mounting shaft 7 is passed through the first through hole 601 and the second through hole 501 provided on the inner ring 6 of the rotation damper 3 and the outer shell 5 in turn, and the second plane 702 on both sides of the connecting portion 701 is fitted with the first plane 603 and the third plane 503 on the inner sides of the first connecting block 602 and the second connecting block 604 in turn. At this time, the rest of the connecting portion 701 is respectively engaged with the first through hole 601 and the second through hole 501, thereby connecting the mounting shaft 7 to the rotation damper 3.

[0029] After the mounting shaft 7 and the rotary damper 3 are connected together, the mounting shaft 7 is moved in the direction close to the transmission shaft 102, so that the transmission shaft 102 is engaged with the mounting hole on the mounting shaft 7, and the transmission shaft 102 is fixed to the mounting shaft 7 by passing the positioning piece through the positioning hole 703, and the rotary damper 3 can be connected to the transmission shaft 102 through the mounting shaft 7. After the two ends of the transmission shaft 102 are respectively connected to the driving component and the anti-rotation component, the motor 10 is started, and the output shaft of the reducer drives the transmission shaft 102 to rotate, and the rotary damper 3 acts as a load. Under the action of the driving component and the anti-rotation component, the transmission shaft 102 rotates relatively, and the shaft body of the transmission shaft 102 will produce a slight twisting deformation, and the strain gauge pasted on the transmission shaft 102 will change its resistance value accordingly. Through the Wheatstone bridge circuit, these changes in resistance value will be converted into electrical signals, and their magnitude is proportional to the torque. By measuring these electrical signals, the magnitude of the torque can be calculated.

[0030] The preferred implementation mode of the present application is described in detail above in conjunction with the accompanying drawings. The typical known structures and common knowledge technologies in the preferred implementation mode are not described in detail here. Ordinary technicians in the relevant field can improve and implement the technical solution of the utility model based on their own abilities under the inspiration given by the present implementation mode. Some typical known structures, known methods or common knowledge technologies should not become obstacles for ordinary technicians in the relevant field to implement the present application.

[0031] The scope of protection required by this application shall be based on the contents of its claims, and the contents of the utility model, specific implementation methods and the contents recorded in the drawings of the specification shall be used to interpret the claims.

[0032] Within the technical concept of the present application, several modifications may be made to the specific implementation methods of the present application, and these modified specific implementation methods should also be regarded as within the protection scope of the present application.

Claims

1. A torque sensor measurement structure for teaching demonstration, characterized in that: It includes a torque sensor and a driving component and a stop component respectively arranged on both sides of the torque sensor, the torque sensor includes a shell and a transmission shaft passing through the shell, the driving component includes a motor, a reducer and a mounting base for installing the reducer, the output shaft of the reducer is connected to one end of the transmission shaft, the stop component includes a rotation damper connected to the other end of the transmission shaft, the rotation damper includes an outer shell and an inner ring arranged on one side of the outer shell, the inner ring can rotate relative to the outer shell, and the outer shell of the rotation damper is connected to a stop block for preventing the rotation thereof.

2. The torque sensor measurement structure for teaching demonstration according to claim 1 is characterized in that: The rotary damper is connected to one end of the transmission shaft through a mounting shaft, a first through hole is opened on the inner ring along its axial direction, a connecting portion for matching with the first through hole is provided at one end of the mounting shaft, first connecting blocks are symmetrically arranged along the radial direction in the first through hole, the sides where the two first connecting blocks are close to each other are both first planes, and the two sides of the connecting portion which are opposite to each other are both second planes for fitting with the first plane.

3. The torque sensor measurement structure for teaching demonstration according to claim 2 is characterized in that: The shell is provided with a second through hole along its axial direction corresponding to the position of the first through hole, and a third connecting block is symmetrically arranged in the radial direction of the second through hole. Along the axial direction of the inner ring, each first connecting block is provided with a second connecting block on the side close to the shell, and the outer sides of the two second connecting blocks are arc surfaces that can match the inner side of the third connecting block, and the inner sides of the two second connecting blocks are third planes that can fit with the second plane.

4. The torque sensor measurement structure for teaching demonstration according to claim 2 is characterized in that: The outer circumferential surface of the shell is provided with a hanging ear along its radial direction, the anti-rotation block is located below the shell, and the upper side of the anti-rotation block is provided with a groove for clamping with the hanging ear.

5. The torque sensor measurement structure for teaching demonstration according to claim 4 is characterized in that: A first connecting hole is formed on the side wall of the groove, and a second connecting hole corresponding to the position of the first connecting hole is formed on the hanging ear. The housing is fixed to the anti-rotation block by a connecting member passing through the first connecting hole and the second connecting hole.

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