CN208399060U - A kind of torque detecting apparatus - Google Patents

A kind of torque detecting apparatus Download PDF

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Publication number
CN208399060U
CN208399060U CN201821088739.2U CN201821088739U CN208399060U CN 208399060 U CN208399060 U CN 208399060U CN 201821088739 U CN201821088739 U CN 201821088739U CN 208399060 U CN208399060 U CN 208399060U
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China
Prior art keywords
sensor
measurement
torque
nut
screw
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CN201821088739.2U
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Chinese (zh)
Inventor
姚志峰
常洪亮
李宝军
赵磊
朱世红
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Jining Microco Machinery Manufacturing Co Ltd
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Jining Microco Machinery Manufacturing Co Ltd
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Abstract

The utility model proposes a kind of torque detecting apparatus for ball-screw, comprising: workbench (1), driving device, fixed clamping device, torque detecting apparatus, position detecting device, controller;Ball-screw is installed on the workbench (1) by the fixed clamping device;The position detecting device be arranged on workbench (1) or around, be transmitted to the controller for detecting the movement position of nut, and then by position signal;The controller controls the driving device according to the position signal and drives ball-screw rotation, and the controller controls the torque detecting apparatus according to the position signal and detects torque, has detection accuracy height, applied widely, reduces the technical effect of cost.

Description

A kind of torque detecting apparatus
Technical field
The utility model relates to a kind of torque detecting apparatus more particularly to a kind of initial torque detections for ball-screw Device.
Background technique
Ball-screw be convert rotary motion to linear motion, or by transform linear motion be rotary motion component, It is that the fields such as equipment, engineering, automobile, space flight are widely applied, has the characteristics that high-precision, invertibity and efficient, with very little Frictional resistance.Wherein, small Miniature ball lead screw is especially high to control requirement due to being usually used in various precision machine tools, robot etc. Occasion, it is especially high to required precision itself.Therefore, it is necessary to know the various parameters of small Miniature ball lead screw, wherein initial Torque is just important one of parameter.Initial torque includes initial torque maximum value (i.e. maximum static lotus) and the flat peak of initial torque It is worth (i.e. dynamic loading).Initial torque maximum value refers to the maximum static friction torque that ball-screw needs to overcome on startup;Just The flat peak value of beginning torque refers to the moment of rolling friction for needing to overcome when ball-screw runs well after actuation.
The method of traditional measurement initial torque is usually the rotation of manual operation ball-screw lead screw, then with detection work It measures, it is time-consuming and laborious, and also testing result inaccuracy, error are very big.
Summary of the invention
The technical problems to be solved in the utility model is to overcome above-mentioned defect in the prior art, is provided a kind of for torque Detection device.
In order to solve the above technical problems, the utility model proposes technical solution are as follows:
A kind of torque detecting apparatus for ball-screw characterized by comprising workbench (1), is consolidated driving device Determine clamping device, torque detecting apparatus, position detecting device, controller;Ball-screw is installed by the fixed clamping device To on the workbench (1);The position detecting device be arranged on workbench (1) or around, for detecting the movement of nut Position, and then position signal is transmitted to the controller;The controller controls the driving device according to the position signal Ball-screw rotation is driven, the controller controls the torque detecting apparatus according to the position signal and detects torque.
Further, wherein the fixed clamping device includes: the first measurement fixed plate (2a), the second measurement fixed plate (2b), top (7), measurement fixed block (6) and adjusting nut (15);Wherein, first measurement fixed plate (2a) and second Measurement fixed plate (2b) be spaced apart from each other it is opposed be fixed on the workbench (1), one end of lead screw (11) is rotationally run through First measurement fixed plate (2a) top (7) includes cylindrical bar part (7a) and threaded shank portion (7b), the screw thread Rotationally through second measurement fixed plate (2b), one end of the cylindrical bar part (7a) resists described bar part (7b) The other end of lead screw (11);The adjusting nut (15) is from the threaded shank portion (7b) far from the cylindrical bar part (7a) One end installation, and with it is described second measurement fixed plate (2b) right side be bonded;The measurement fixed block (6) includes the first circle Column (6a) and the second cylinder (6b) composition, wherein offered among first cylinder (6a) and second cylinder (6b) logical Hole, the cylindrical bar part (7a) of top (7) pass through the through-hole, and the right side of second cylinder (6b) is fixed to institute State the left side of the second measurement fixed plate (2b).
Further, one or two of first measurement fixed plate (2a) and second measurement fixed plate (2b) It can be slided on the workbench (1).
Further, wherein the torque detecting apparatus includes: measurement nut (8), connecting rod (9), torque sensor (16);Wherein, the measurement nut (8) includes circular ontology (8a) and pillar (8b), and the annular shape ontology (8a) can turn It is mounted on the cylindrical bar part (7a) of top (7) dynamicly, the radial direction along the circular ontology (8a) is in institute It states and outwardly protrudes a pillar (8b) on the periphery of circular ontology (8a);The torque sensor 16 is arranged in the workbench (1) position of the pillar 8b is corresponded on;At least one is offered with the flange end of the nut (10) of the lead screw (11) connection Mounting hole is fixed with the connecting rod (9) at least one mounting hole, and the measurement nut (8) along the circumferential direction offers At least one through-hole, at least one through-hole is corresponding at least one mounting hole, the connecting rod (9) can through this at least one A through-hole.
Further, the end of the pillar (8b) is equipped with a magnetic metal block (8c), on the torque sensor (16) It is connected with magnet (17).
Further, wherein the position detecting device includes: first sensor (12), second sensor (13a), Three sensors (13b);Wherein, the first sensor (12), the second sensor (13a), the 3rd sensor (13b) It is spaced apart and arranged in the parallel underface of the lead screw (11).
Further, the first sensor (12), the second sensor (13a) and the 3rd sensor (13b) It is to approach switch.
In addition, it is also proposed that a method of detection torque characterized by comprising first sensor (12) setting At the underface P1 of the first extreme position of nut (10);The second sensor (13a) is arranged in the nut (10) At the underface P2 of second extreme position;The off-position of the 3rd sensor (13b) setting in the nut (10) At the P3 of underface;Position where measurement nut (8) is projected on the workbench (1) as at P4;Step S1: reset is pressed Key, controller assign instruction and allow the automatic running-in of detection device, the first sensor (12), the second sensor (13a), institute It states 3rd sensor (13b) and the torque sensor (16) receives command adapted thereto and carries out self-test, the motor (4) receives The driving signal rotation of controller output, drives the lead screw (11) to rotate, so that nut (10) operation to the position P2 stops, etc. To instruct in next step, connecting rod (9) has run through measurement nut (8);Step S2: starting travel button key, the motor (4) connect The driving signal of admission controller output rotates clockwise, and drives the lead screw (11) and the nut (10) to rotate clockwise, together Side direction is mobile to the right from the position P2 for Shi Suoshu nut (10), until moving to is at the position P1 where first sensor (12) Stop, the torque during torque sensor (16) detection position P2 to P1, and will test result and be transmitted to controller;Step S3: when the nut (10) moves to the position P1, the first sensor (12) detects the nut (10), and will test Signal is transmitted to controller, and after controller receives the detection signal of the first sensor (12), output drive signal gives the electricity Machine (4) rotates counterclockwise the motor (4), drives the lead screw (11) and the nut (10) to rotate counterclockwise, simultaneously Side direction is mobile to the left from the position P1 for the nut (10), until moving to the position P2 where the second sensor (13a) Place stops, the torque during torque sensor (16) detection position P1 to P2, and will test result and be transmitted to controller;Step S4: when the nut (10) moves at the position P2, the second sensor (13a) is detected the nut (10), and will Detection signal is transmitted to controller and disconnects the torque sensing after controller receives the detection signal of the second sensor (13a) Device (16) is completed a cycle T and is measured and recorded.
Further, further include step S5: pressing conclusion button, after the measurement for completing a cycle T, controller continues Output drive signal makes the motor (4) continue to rotate counterclockwise to the motor (4), drives the lead screw (11) and described Nut (10) rotates counterclockwise, while side direction is mobile to the left from the position P2 for the nut (10), until moving to the third Stop at the position P3 where sensor (13b), terminates measurement.
Compared with the prior art, the advantages of the utility model are: the pure artificial detection method that substitution is traditional, this is practical new Type torque detecting apparatus has detection accuracy height, applied widely, reduces the technical effect of cost.
Detailed description of the invention
Hereinafter the utility model will be described in more detail based on the embodiments and with reference to the accompanying drawings.Wherein:
Fig. 1 is the structural schematic diagram of the utility model torque detecting apparatus.
Fig. 2 is the structural schematic diagram of the utility model torque detecting apparatus other direction.
Fig. 3 is the explosive view of the utility model torque detecting apparatus.
Fig. 4 is the cross-sectional view of the utility model torque detecting apparatus.
Fig. 5 is the testing result schematic diagram of the utility model torque detecting apparatus.
Each label indicates in figure:
1, workbench;2a, the first measurement fixed plate;2b, the second measurement fixed plate;3, motor fixing seat;4, motor;5, it limits Position platform;6, fixed block is measured;6a, the first cylinder;6b, the second cylinder;7, top;7a, cylindrical bar part;7b, threaded shank portion; 8, nut is measured;8a, circular ontology;8b, pillar;8c, magnetic metal block;9, connecting rod;10, nut;11, lead screw;12, One sensor;13a, second sensor;13b, 3rd sensor;14, shaft coupling;15, adjusting nut;16, torque sensor; 17, magnet.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this The specific embodiment of utility model is described in detail.
In this document, such as the relational language of first and second, top and bottom can be used only for distinguishing a reality Body or movement and another entity or movement, without any actual this necessarily or between this entity of hint or movement Relationship or sequence.Term " includes " or its any other modification be intended to cover it is non-exclusive include so that including a series of Process, method, article or the device of element not only include those elements, but may include not expressly listed or for this Intrinsic other elements for kind process, method, article or device.Do not having by the element that " including ... " obtains It is not precluded in the process, method including the element, article or device that there are other identical members in the case where more limitations Part.
On the other hand, term used in this specification is not really wanted to limit the utility model for illustrating embodiment.At this In specification, as long as not mentioning especially in sentence, singular type also includes complex number type.Used in specification " including (comprises) " and/or " (comprising) that includes ", refer to composition element, step, movement and/or the element mentioned not It excludes to exist or additional more than one other constitutes element, step, movement and/or element.With reference to the accompanying drawings, it is described in detail The embodiments of the present invention.
Embodiment one:
As shown in Figs 1-4, the utility model torque detecting apparatus include: workbench 1, driving device, fixed clamping device, Torque detecting apparatus, position detecting device.
Wherein, driving device includes: motor 4, motor fixing seat 3 and for connecting motor output shaft with lead screw Shaft coupling 14.Motor fixing seat 3 is fixed on workbench 1, and motor 4 is fixed in motor fixing seat 3, is thus fixed on work together Make on platform 1.
Wherein, fixed clamping device includes: the first measurement fixed plate 2a, the second measurement fixed plate 2b, top 7, measurement is solid Determine block 6 and adjusting nut 15.Wherein, the first measurement fixed plate 2a and the second measurement fixed plate 2b is spaced apart from each other opposed solid Determine on the table, the first measurement fixed plate 2a is rotationally run through in one end of lead screw 11;Top 7 include cylindrical bar part 7a and Threaded shank portion 7b, threaded shank portion 7b rotationally run through the second measurement fixed plate 2b, and one end of cylindrical bar part 7a resists The other end of lead screw 11;Adjusting nut 15 is installed from one end of the separate cylindrical bar part 7a of threaded shank portion 7b, and with second The right side fitting for measuring fixed plate 2b, for adjusting top 7 position, and then the pretightning force of adjusting top 7, i.e. adjusting screw 11 it is elastic;It is stepped to measure 6 section of fixed block, is made of the first cylinder 6a and the second cylinder 6b, wherein the first cylinder 6a Diameter of the diameter less than the second cylinder 6b, offer through-hole, top 7 cylindrical bar among the first cylinder 6a and the second cylinder 6b Part 7a passes through the through-hole, and the right side of the second cylinder 6b is fixed to the left side of the second measurement fixed plate 2b.
Wherein, torque detecting apparatus includes: measurement nut 8, connecting rod 9, torque sensor 16.Wherein, measurement nut 8 wraps Circular ontology 8a and pillar 8b are included, circular ontology 8a is installed in rotation on top 7 cylindrical bar part 7a, along annular shape The radial direction of ontology 8a outwardly protrudes a pillar 8b on the periphery of circular ontology 8a, and the end of pillar 8b is equipped with a magnetic Property metal block 8c, such as iron block, preferably a hex(agonal)screw;One magnet 17, the position of magnet 17 and magnetism are installed on workbench 1 The position of metal block is corresponding, is acted on by magnetic-adsorption, so that pillar 8b is in contact with magnet 17, plays positioning action, prevents 8 sideslip of nut is only measured, the torque sensor 16 connecting with magnet 17 is additionally provided with, the torque sensor 16 is for measuring lead screw spiral shell Female torque;The flange end of the nut 10 connected with lead screw 11 offers at least one mounting hole, at least one mounting hole Be fixed with connecting rod 9, measurement nut 8 along the circumferential direction offers at least one through-hole, at least one through-hole and at least one Mounting hole is corresponding, and connecting rod 9 can run through at least one through-hole;Position where measurement nut 8, which is projected on workbench 1, is At P4.
Using certain conversion relation, i.e., the utility model torque sensor 16 can be to be measured after power by force snesor Torque can be directly obtained.Torque sensor 16 is spaced T at regular intervals and measures a data, and time interval T in the present embodiment= 0.01 second.
The material that the present embodiment measures nut 8 is preferably aluminium, it is therefore desirable to a magnetic metal be arranged in the end of pillar 8b Block 8c, for positioning.However, measurement nut 8 can also select magnetic metal, such as iron, steel etc., the magnetism gold of end can be saved Belong to block 8c.
Wherein, position detecting device includes: first sensor 12, second sensor 13a, 3rd sensor 13b.Wherein, Along limiting stand 5 is equipped on the motion path of nut 10 on workbench 1,5 section of limiting stand is in " recessed " shape, i.e., on limiting stand 5 Portion offers rectangular recess, for accommodating the motion path of nut 10, i.e. the groove extending direction of rectangular recess and nut 10 The direction of motion is parallel, prevents 10 sideslip of nut;Limiting stand 5 is arranged in second sensor 13a and the interval 3rd sensor 13b Side ipsilateral can be arranged, can also be arranged with heteropleural;First sensor 12 is arranged on workbench 1, and lead screw 11 is arranged in Parallel underface;First sensor 12 is preferably placed in the underface of the first extreme position (right side in Fig. 1) of nut 10 At P1;Second sensor 13a be preferably placed in nut 10 the second extreme position (in Fig. 1 relative to the first extreme position Left side) underface P2 at;3rd sensor 13b be preferably placed in nut 10 off-position (in Fig. 1 relative to second The left side of extreme position) underface P3 at.
First sensor 12, second sensor 13a and 3rd sensor 13b can be close to switch, be also possible to infrared Line opposite type sensor, is also possible to radar, is also possible to ultrasonic sensor etc..
Although in the utility model, second sensor 13a and 3rd sensor 13b, the setting of first sensor 12 are working On platform 1, however, it is possible to selection, first sensor 12, second sensor 13a, 3rd sensor 13b can be arranged at On limiting stand 5, perhaps it is arranged on workbench 1 or the setting of one of those or two is in limiting stand 5, remaining setting On workbench 1.
The utility model torque detecting apparatus further include: controller (not shown).Controller in the present embodiment is excellent Select programmable controller plc.
Embodiment two: what is different from the first embodiment is that one in the first measurement fixed plate 2a and the second measurement fixed plate 2b A or two can slide on workbench 1, slidable measure is equipped with locking knot accordingly on fixed plate or workbench 1 Structure.In this way, can be adapted for the detection of various sizes of ball-screw, the scope of application is wider.
The illustratively course of work of the utility model torque detecting apparatus below:
Step S1: pressing reset key, and controller assigns instruction and allows the automatic running-in of detection device, first sensor 12, second Sensor 13a, 3rd sensor 13b and torque sensor receive command adapted thereto and carry out self-test, and it is defeated that motor 4 receives controller Driving signal rotation out, drives lead screw 11 to rotate, so that the operation of nut 10 to the position P2 stops, waiting and instructing in next step.This When, connecting rod 9 has run through measurement nut 8.
Step S2: starting travel button key, the driving signal that motor 4 receives controller output rotate clockwise, and drive silk Thick stick 11 and nut 10 rotate clockwise, while nut 10 is mobile from right direction of the position P2 into Fig. 1, until moving to first Stop at the position P1 where sensor 12.In motion process of the nut 10 from the position P2 to the position P1, since motor 4 is up time Needle rotation, therefore 16 under tension of torque sensor acts on, and then the torque during the detection of torque sensor 16 position P2 to P1, And will test result and be transmitted to controller, controller therefrom extracts a maximum of T 1max(i.e. maximum static lotus) peace peak value T1d (i.e. dynamic loading).
Step S3: when nut 10 moves to the position P1, first sensor 12 detects nut 10, and will test signal biography To controller, after controller receives the detection signal of first sensor 12, output drive signal makes 4 inverse time of motor to motor 4 Needle rotation, drives lead screw 11 and nut 10 to rotate counterclockwise, while nut 10 is mobile from left direction of the position P1 into Fig. 1, Stop at the position P2 where second sensor 13a up to moving to.In motion process of the nut 10 from the position P1 to the position P2, Since motor 4 is to rotate counterclockwise, the effect of being under pressure of torque sensor 16, and then torque sensor 16 detects P1 to P2 Torque during position, and will test result and be transmitted to controller, it is i.e. maximum quiet that controller therefrom extracts a maximum of T 2max( Load) peace peak value T2d(, that is, dynamic loading).
Step S4: when nut 10 moves at the position P2, second sensor 13a detects nut 10, and will test letter Number it is transmitted to controller, after controller receives the detection signal of second sensor 13a, disconnects torque sensor 16, complete primary (one A cycle T) measure and record (storage).
If necessary to carry out the measurement of multiple cycle Ts, as long as controller circulation executes above-mentioned steps S2-S4.
It exits if necessary, presses conclusion button, after the measurement for completing a cycle T, i.e., nut 10 is in the position P2 When place, controller continues to output driving signal and makes motor 4 continue to rotate counterclockwise to motor 4, drives lead screw 11 and nut 10 It rotates counterclockwise, while nut 10 is mobile from left direction of the position P2 into Fig. 1, until moving to 3rd sensor 13b institute The position P3 at stop, terminate measurement.At this point, connecting rod 9 has been detached from measurement nut 8.
Testing result is as shown in Fig. 5 (by taking the testing result of the position from P2 to P1 of nut 10 as an example), finally to measurement result It is averaged and obtains initial torque, by taking the detection of a cycle T as an example, initial torque maximum value (i.e. maximum static lotus): Tmax=(T1max+T2max)/2-T3;The flat peak value of initial torque (i.e. dynamic loading): Td=(T1d+T2d)/2-T3.Wherein, T3 is Bearing frictional torque, bearing frictional torque can drive empty run to measure in the case where dismantling lead screw 11 and nut 10 by motor 4.
The utility model is referring to according to the method, apparatus of the utility model embodiment and the stream of computer program product Journey figure and/or block diagram describe.It should be understood that can be realized by computer program instructions each in flowchart and/or the block diagram The combination of process and/or box in process and/or box and flowchart and/or the block diagram.It can provide these computer journeys Sequence instruct to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor with A machine is generated, so that the instruction generation executed by computer or the processor of other programmable data processing devices is used for Realize the dress for the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram It sets.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that instruction stored in the computer readable memory generation includes The manufacture of command device, the command device are realized in one box of one or more flows of the flowchart and/or block diagram Or the function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer Or the instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram The step of function of being specified in one box or multiple boxes.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model Limitation.Although the utility model has been disclosed with preferred embodiment as above, it is not intended to limit the utility model.It is any ripe Those skilled in the art is known, in the case where not departing from technical solutions of the utility model ambit, all using the side of the disclosure above Method and technology contents make many possible changes and modifications to technical solutions of the utility model, or be revised as equivalent variations etc. Imitate embodiment.Therefore, all contents without departing from technical solutions of the utility model, according to the technical essence of the utility model to Any simple modifications, equivalents, and modifications that upper embodiment is done still fall within the model of technical solutions of the utility model protection In enclosing.

Claims (7)

1. a kind of torque detecting apparatus for ball-screw characterized by comprising workbench (1), driving device, fixation Clamping device, torque detecting apparatus, position detecting device, controller;
Ball-screw is installed on the workbench (1) by the fixed clamping device;The position detecting device setting exists On the workbench (1) or around, the controller is transmitted to for detecting the movement position of nut, and then by position signal;
The controller controls driving device driving ball-screw rotation according to the position signal, the controller according to The position signal controls the torque detecting apparatus and detects torque.
2. the torque detecting apparatus according to claim 1 for ball-screw, which is characterized in that wherein, the fixation Clamping device include: the first measurement fixed plate (2a), second measurement fixed plate (2b), top (7), measurement fixed block (6) and Adjusting nut (15);
Wherein, first measurement fixed plate (2a) and second measure that fixed plate (2b) be spaced apart from each other opposed be fixed on the work Make on platform (1), first measurement fixed plate (2a) is rotationally run through in one end of lead screw (11);
Top (7) include cylindrical bar part (7a) and threaded shank portion (7b), and the threaded shank portion (7b) is rotationally Through second measurement fixed plate (2b), one end of the cylindrical bar part (7a) resists the other end of the lead screw (11);
The adjusting nut (15) is installed from one end far from the cylindrical bar part (7a) of the threaded shank portion (7b), and It is bonded with the right side of second measurement fixed plate (2b);
The measurement fixed block (6) includes that the first cylinder (6a) and the second cylinder (6b) form, wherein first cylinder (6a) Through-hole is offered with the second cylinder (6b) centre, the cylindrical bar part (7a) of top (7) passes through the through-hole, institute The right side for stating the second cylinder (6b) is fixed to the left side of second measurement fixed plate (2b).
3. the torque detecting apparatus according to claim 2 for ball-screw, which is characterized in that first measurement is solid One or two of fixed board (2a) and second measurement fixed plate (2b) can slide on the workbench (1).
4. the torque detecting apparatus according to claim 2 or 3 for ball-screw, which is characterized in that wherein, the torsion Moment detection device includes: measurement nut (8), connecting rod (9), torque sensor (16);
Wherein, the measurement nut (8) includes circular ontology (8a) and pillar (8b), and the annular shape ontology (8a) can be rotated Ground is mounted on the cylindrical bar part (7a) of top (7), and the radial direction along the circular ontology (8a) is described A pillar (8b) is outwardly protruded on the periphery of circular ontology (8a);
Torque sensor (16) setting corresponds to the position of the pillar (8b) on the workbench (1);
At least one mounting hole is offered with the flange end of the nut (10) of the lead screw (11) connection, at least one mounting hole In be fixed with the connecting rod (9), the measurement nut (8) along the circumferential direction offers at least one through-hole, this at least one Through-hole is corresponding at least one mounting hole, and the connecting rod (9) can run through at least one through-hole.
5. the torque detecting apparatus according to claim 4 for ball-screw, which is characterized in that the pillar (8b) End is equipped with a magnetic metal block (8c), is connected with magnet (17) on the torque sensor (16).
6. the torque detecting apparatus according to claim 2 or 3 for ball-screw, which is characterized in that wherein, institute's rheme Setting detection device includes: first sensor (12), second sensor (13a), 3rd sensor (13b);
Wherein, the first sensor (12), the second sensor (13a), the 3rd sensor (13b) are positioned apart from In the parallel underface of the lead screw (11).
7. the torque detecting apparatus according to claim 6 for ball-screw, which is characterized in that the first sensor (12), the second sensor (13a) and the 3rd sensor (13b) are to approach switch.
CN201821088739.2U 2018-07-10 2018-07-10 A kind of torque detecting apparatus Active CN208399060U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108827507A (en) * 2018-07-10 2018-11-16 济宁市微科特机械制造有限责任公司 A kind of torque detecting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108827507A (en) * 2018-07-10 2018-11-16 济宁市微科特机械制造有限责任公司 A kind of torque detecting apparatus

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