CN105203242A - Torque measuring device - Google Patents
Torque measuring device Download PDFInfo
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- CN105203242A CN105203242A CN201410190276.0A CN201410190276A CN105203242A CN 105203242 A CN105203242 A CN 105203242A CN 201410190276 A CN201410190276 A CN 201410190276A CN 105203242 A CN105203242 A CN 105203242A
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- piezoelectric quartz
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- quartz crystal
- gland
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Abstract
A torque measuring device belongs to the fields of testing technologies and piezoelectric quartz torque measuring devices. The torque measuring device is composed of a base, a pressing cover, sensors, binding posts and the like. A through hole is formed in the center of the measuring device. The base is provided with an annular boss. The plurality of piezoelectric quartz sensors of a 'torsion effect' cutting type are uniformly pasted on the base. Each sensor is composed of a rectangular piezoelectric quartz crystal, electrodes and a conductive wire. Two pairs of electrodes are pasted on the periphery of the rectangular piezoelectric quartz crystal. The measuring device is simple in structure, convenient, and precise and reliable in testing.
Description
Technical field
The invention belongs to measuring technology and piezoelectric quartz sense measuring device field.
Background technology
Usually the sensor in torque-measuring apparatus used adopts piezoelectric quartz crystal plate as measuring sensor, general employing multi-disc YOo type piezoelectric quartz crystal plate, piezoelectric quartz crystal plate be uniformly distributed with R be in the housing radius circumferentially, electrode plates is placed with between upper and lower two pieces of piezoelectric quartz crystal plate, when there being torsional interaction, the bound charge of generation can be exported.
Needed for the sensor of this torque-measuring apparatus, piezoelectric quartz crystal plate quantity is many, plays up to 12-24 sheet, sees accompanying drawing 1, accompanying drawing 2.
For making each uniform stressed, the height of wafer and the flatness of upper and lower surface of contact, roughness requirements are quite strict, and difficulty of processing is large, and technological requirement is high, and the measurement mechanism complex structure made, cost are high.
The center of measurement mechanism also must be made during measurement consistent with the drill bit centre of gyration, so when measuring different position, hole, constantly will adjust the position of measurement mechanism, test, adjustment trouble, precision is low.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of conventional torque measurement mechanism, measurement mechanism structure wants simple, and cost is low, is easy to adjustment during test, simple to operation, and test is accurately reliable, can enlarge measurement range.
The technical scheme that a kind of torque-measuring apparatus of the present invention adopts is:
A kind of torque-measuring apparatus is made up of base, gland, sensor, binding post etc., it is characterized in that, the center of measurement mechanism is through hole, base 1 there is annular boss e, it is stained with the piezoelectric quartz sensor 5 with " torsional effect " cut type that several are equally distributed, sensor 5 by Rectangular piezoelectric quartz crystal 9, dielectric 10, wire 11, electrode forms, and sees accompanying drawing 3, accompanying drawing 4, accompanying drawing 5.The surrounding of Rectangular piezoelectric quartz crystal 9 has been pasted two pairs of electrodes, for a pair be stained with dielectric 10 insulation course between induction electrode b, d it and piezoelectric quartz crystal, another to for electrode a, c directly bonding with piezoelectric quartz crystal 9, as the output lead 11 of sensor after often pair of electrode parallel connection, the output lead of each sensor is by outside the endoporus lead body of binding post 3; Binding post 3 is by being screwed on gland 2, and preload bolt 6 through base 1 and piezoelectric quartz sensor 5 center pit, be tightened in by base on gland 2, gasket seal 7 is attached to pretension bolt head.
The base 1 of torque-measuring apparatus, gland 2 are all evenly distributed with several open pore be fixedly connected with or threaded holes, and the lower surface of gland 2 has two annular seal grooves, O-ring seal 4,8 is contained in these two annular seal grooves respectively.
Effect of the present invention adopts the piezoelectric quartz crystal with torsional effect, make the quantity that structure is simple, decrease piezoelectric quartz crystal plate, reduce cost, improve technological requirement, this device for measuring force output charge amount is only relevant with torque, and has nothing to do with moment loading point, the moment of couple of movement in large plane can be measured, expand measurement range, be easy to adjustment, highly sensitive, overcome and utilize multi-disc YOo cut type wafer to combine to survey the shortcoming of moment of torsion.
Accompanying drawing explanation
Accompanying drawing 1 is typical measuring arrangements structure, wherein: 1-housing, and 2-piezoelectric quartz crystal plate, 3,4-pole piece, 5-output line, Mt-moment of torsion.
Accompanying drawing 2 is typical measuring arrangements piezoelectric quartz crystal plate arrangenent diagrams, wherein: 1-housing, and 2-piezoelectric quartz crystal plate, the R-arm of force, F-shearing force.
Accompanying drawing 3 is the main cut-open views of measurement mechanism.
Accompanying drawing 4 is measurement mechanism vertical views.
Accompanying drawing 5 is piezoelectric quartz sensor structural drawing, wherein: 1-base, and 2-gland, 3-binding post, 4-O-ring seal, 5-piezoelectric quartz sensor, 6-pretension bolt, 7-gasket seal, 8-O-ring seal, 9-piezoelectric quartz crystal plate, 10-dielectric, 11-wire, a, c electrode, b, d-induction electrode, e-boss.
Accompanying drawing 6 is torque measurement schematic diagram, wherein: 1-drill bit, and 2-pressing plate, 3-workpiece, 4-cushion block, 5-preloader, 6-measurement mechanism.
Embodiment
Enforcement of the present invention is described in detail below in conjunction with accompanying drawing:
First measurement mechanism is fixed during measurement, then workpiece 3 will be surveyed, above the cushion block 4 being placed on plane on measurement mechanism, adjust rear pressing plate 2 and fix workpiece, again by preloader 5 to measurement mechanism add preload after, can measure perpendicular to the drilling torque of any point boring on measurement mechanism worktable on workpiece, see accompanying drawing 6.Due to the present invention's employing is the piezoelectric quartz crystal with " torsional effect ", and this is a kind of quartz crystal of special cut type.So-called " torsional effect " cut type refers to when torsional interaction is at this piezoelectric quartz crystal plate, can produce bound charge with by four planes turning round perpendicular, the electric charge homophase that apparent surface produces.Further, the moment of torsion applied and the bound charge of generation linear.Therefore, the torque value of drilling can be convenient for measuring out.When moment of torsion Mt acts on workpiece, because workpiece measuring device is affixed, so piezoelectric quartz crystal all creates bound charge perpendicular in four planes in torsional interaction face, wherein electrode a, c is because of direct and crystal contact, so the sign on pole piece is identical with crystal bound charge symbol, and post one deck between electrode b, d and crystal and to insulate glue-line, so polarity is contrary with electric charge on quartz crystal, same a, c electrode bound charge is identical, a, c electrode is in parallel, reach electric charge in the same way through wire after the parallel connection of b, d electrode to export, see accompanying drawing 5.Through charge amplifier, the quantity of electric charge is converted to voltage again, is fetched data by voltmeter reading, just can measure torque.
If measured workpiece is larger plane, when having multiple hole to measure, can increase the number of measurement mechanism, center and the measured hole center line that need not adjust measurement mechanism equally when measuring are consistent, just can realize Multi-hole drilling accurately and rapidly and measure.This measurement mechanism also can be used in observing and controlling and supervisory system.
Claims (2)
1. a torque-measuring apparatus, be made up of base, gland, sensor, binding post etc., it is characterized in that, the center of measurement mechanism is through hole, base 1 has annular boss e, it is stained with the piezoelectric quartz sensor 5 with " torsional effect " cut type that several are equally distributed, sensor 5 is by Rectangular piezoelectric quartz crystal 9, dielectric 10, wire 11, electrode forms; Rectangular piezoelectric quartz crystal surrounding has been pasted two pairs of electrodes, for a pair induction electrode b, d, dielectric 10 insulation course is stained with between it and piezoelectric quartz crystal, another to for electrode a, c directly bonding with piezoelectric quartz crystal 9, as the output lead 11 of sensor after often pair of electrode parallel connection, the output lead 11 of each sensor is by outside the endoporus lead body of binding post 3; Binding post 3 is by being screwed on gland 2, and preload bolt 6 through base 1 and piezoelectric quartz sensor 5 center pit, be tightened in by base on gland 2, gasket seal 7 is attached to pretension bolt head.
2. a kind of torque-measuring apparatus as claimed in claim 1, it is characterized in that, described base 1, gland 2 are all evenly distributed with several open pore be fixedly connected with or threaded holes, the lower surface of gland 2 has two annular seal grooves, O-ring seal 4,8 is contained in these two annular seal grooves respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190276.0A CN105203242A (en) | 2014-06-15 | 2014-06-15 | Torque measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190276.0A CN105203242A (en) | 2014-06-15 | 2014-06-15 | Torque measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105203242A true CN105203242A (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410190276.0A Pending CN105203242A (en) | 2014-06-15 | 2014-06-15 | Torque measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105203242A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910750A (en) * | 2016-04-11 | 2016-08-31 | 沈阳工业大学 | Pumping device impeller dynamic circumference vector force measuring device and method |
| CN106225982A (en) * | 2016-09-07 | 2016-12-14 | 广东明阳风电产业集团有限公司 | A kind of bolt moment of flexure and pulling force decoupling test sensor and method of testing thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401978A (en) * | 2001-08-10 | 2003-03-12 | 大连理工大学 | Torque measuring method and sensor |
| CN1401977A (en) * | 2001-08-10 | 2003-03-12 | 大连理工大学 | Torductor |
| CN1553160A (en) * | 2003-05-28 | 2004-12-08 | �Ϻ���ͨ��ѧ | Piezoelectric quartzplate-type torque sensor and producing process thereof |
| WO2009077463A1 (en) * | 2007-12-14 | 2009-06-25 | Siemens Aktiengesellschaft | Load cell |
| CN101650243A (en) * | 2009-07-16 | 2010-02-17 | 大连理工大学 | Piezoelectric type device for measuring drilling force of deep hole |
| WO2010088922A1 (en) * | 2009-02-06 | 2010-08-12 | Abb Ag | Set of multiaxial force and torque sensor and assembling method |
-
2014
- 2014-06-15 CN CN201410190276.0A patent/CN105203242A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401978A (en) * | 2001-08-10 | 2003-03-12 | 大连理工大学 | Torque measuring method and sensor |
| CN1401977A (en) * | 2001-08-10 | 2003-03-12 | 大连理工大学 | Torductor |
| CN1553160A (en) * | 2003-05-28 | 2004-12-08 | �Ϻ���ͨ��ѧ | Piezoelectric quartzplate-type torque sensor and producing process thereof |
| WO2009077463A1 (en) * | 2007-12-14 | 2009-06-25 | Siemens Aktiengesellschaft | Load cell |
| WO2010088922A1 (en) * | 2009-02-06 | 2010-08-12 | Abb Ag | Set of multiaxial force and torque sensor and assembling method |
| CN101650243A (en) * | 2009-07-16 | 2010-02-17 | 大连理工大学 | Piezoelectric type device for measuring drilling force of deep hole |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910750A (en) * | 2016-04-11 | 2016-08-31 | 沈阳工业大学 | Pumping device impeller dynamic circumference vector force measuring device and method |
| CN106225982A (en) * | 2016-09-07 | 2016-12-14 | 广东明阳风电产业集团有限公司 | A kind of bolt moment of flexure and pulling force decoupling test sensor and method of testing thereof |
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Application publication date: 20151230 |
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| WD01 | Invention patent application deemed withdrawn after publication |