CN206038210U - Hydraulic torque spanner high accuracy metering device - Google Patents
Hydraulic torque spanner high accuracy metering device Download PDFInfo
- Publication number
- CN206038210U CN206038210U CN201621011579.2U CN201621011579U CN206038210U CN 206038210 U CN206038210 U CN 206038210U CN 201621011579 U CN201621011579 U CN 201621011579U CN 206038210 U CN206038210 U CN 206038210U
- Authority
- CN
- China
- Prior art keywords
- hydrostatic bearing
- upper bracket
- torque wrench
- hydraulic torque
- lower carriage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 32
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a hydraulic torque spanner high accuracy metering device, including lower carriage, upper bracket, measurement connecting block, hydrostatic bearing, dynamometry arm, force sensor and pressure sensor, an upper bracket is installed at the top interval of lower carriage, and coaxial arrangement has a vertical axial hydrostatic bearing in this upper bracket, and the torque wrench who awaits measuring is located between lower carriage and upper bracket, its torque output axle pass through the upper bracket the measurement connecting block and with the same axle center of hydrostatic bearing, admittedly, be equipped with a dynamometry arm at radial one side of hydrostatic bearing outer wall, this dynamometry arm is connected with a force sensor. This metering device novel " hydraulic torque spanner high accuracy metering device " utilizes the hydrostatic bearing test system, fine solution when measuring the tangential force influence that the friction brought produces. Measurement accuracy is high, stability is good.
Description
Technical field
This utility model belongs to metering device field, especially a kind of hydraulic torque wrench high-precision measuring device.
Background technology
It is generally not linear relationship that hydraulic torque wrench is input into oil pressure with output torque, needs to carry out gauging calibration.Due to
The structures shape of hydraulic torque wrench itself is also accompanied with very big tangential force (reachable while output torque
10000kg), the tangential force directly produces mechanical static friction, makes the measuring accuracy of reality output torque value be difficult to ensure.
Utility model content
The purpose of this utility model be overcome the deficiencies in the prior art in place of, there is provided a kind of hydraulic torque wrench high accuracy
Metering device.
This utility model solves its technical problem and takes technical scheme below to realize：
A kind of hydraulic torque wrench high-precision measuring device, it is characterised in that：Including lower carriage, upper bracket, measurement connection
Block, hydrostatic bearing, measuring arm of force, pulling force sensor and pressure transducer, the top interval of lower carriage are provided with a upper bracket, should
Be coaxially installed with the hydrostatic bearing of a vertical axial direction in upper bracket, torque wrench to be measured be seated lower carriage and upper bracket it
Between, its torque output shaft is by the measurement contiguous block of upper bracket and concentric with hydrostatic bearing；In the radial direction side of hydrostatic bearing
Outer wall is fixed with a measuring arm of force, and the measuring arm of force is connected with a pulling force sensor.
And, the hydrostatic bearing oil film is supported as freely rotating without friction between suspended state and upper bracket, and hydraulic pressure is turned round
The tangential force of square spanner output is offset by the hydrostatic bearing oil film of static-pressure system.
And, the pulling force sensor is connected to computer by data wire.
And, a pressure transducer is installed on the hydraulic oil intake line of hydraulic torque wrench, the pressure transducer
Computer is connected by data wire.
Advantage of the present utility model and good effect are：
1st, this metering device new " hydraulic torque wrench high-precision measuring device " utilizes hydrostatic bearing test system, very well
Tangential force when solving measurement produce the brought impact of friction.Certainty of measurement is high, good stability.
2nd, this metering device is in the automatically controlled controller switching equipment quality supervision and test of country of Tianjin Electro Scientific academy company limited
Using measurement effect very well, measurement sensitivity reaches 0.025%, and maximum gauged torque reaches 22000N.m, and measuring accuracy is missed at center
Difference is less than 0.5%.
Description of the drawings
Fig. 1 is this apparatus structure schematic diagram.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings and by specific embodiment, and following examples are simply retouched
The property stated, be not determinate, it is impossible to limit protection domain of the present utility model with this.
A kind of hydraulic torque wrench high-precision measuring device, according to the equilibrium principle of space force system, using measuring arm of force end
Pulling force sensor and hydrostatic bearing test system are measured to hydraulic torque wrench torque output, hydraulic torque wrench output
Spindle central of the tangential force by static-pressure system, offset and do not produced by hydrostatic bearing oil film frictional influence, reach accurate meter
The purpose of amount hydraulic torque wrench moment of torsion.
This device concrete structure includes lower carriage 4, upper bracket 3, measurement contiguous block 2, hydrostatic bearing 5, measuring arm of force 8, pulling force
Sensor 7 and pressure transducer 6, lower carriage is fixed on the ground, and the top interval of lower carriage is provided with a upper bracket, on this
A vertically axial hydrostatic bearing is coaxially installed with support, and hydrostatic bearing oil film is supported as nothing between suspended state and upper bracket
Friction is freely rotated；
On lower carriage between upper bracket and lower carriage, fixation is supported by hydraulic torque wrench 6 to be measured, and this is to be measured
Torque output shaft is by the measurement contiguous block of upper bracket and concentric with hydrostatic bearing, and hydraulic torque wrench is by measuring contiguous block
Hydrostatic bearing is driven to rotate；
Upper bracket upper end is stretched out on hydrostatic bearing top and the radial direction side outer wall in hydrostatic bearing is fixed with a measuring arm of force
2, the measuring arm of force is connected with a pulling force sensor, and when hydrostatic bearing is rotated, measuring arm of force follows hydrostatic bearing to rotate so as to pull
Force transducer, the pulling force sensor are connected to computer by data wire, can accurately read in real time, gather pulling force data；
In order to obtain the input pressure of hydraulic torque wrench simultaneously, pacify on the hydraulic oil intake line of hydraulic torque wrench
Equipped with a pressure transducer 6, the pressure transducer connects computer by data wire.
Spanner and its subsidiary body are fixed on the fixed support of test system, by given input hydraulic pressure pressure, are measured
The torque value of hydraulic torque wrench.
Measuring process is as follows：
Before measurement, first the output shaft of hydraulic torque wrench is connected with hydrostatic bearing upper bracket by measuring contiguous block, is adjusted
Whole hydraulic torque wrench metering system height is simultaneously finally supported by lower carriage 4, is started hydrostatic bearing hydraulic system, is made hydrostatic bearing
In suspended state, supported by oil film；
During measurement, start hydraulic torque wrench Hydraulic Station and adjust the metering pressure of setting by the instruction of pressure transducer
Force value, gives hydraulic torque wrench voltage supply, after pressure value stabilization, metering device reaches poised state, and computer acquisition is now
Output torque calculates the actual torque value of hydraulic spanner by pulling force sensor data；
In the range ability of hydraulic torque wrench, multiple testing sites are measured, the matched curve of pressure and moment of torsion is obtained, from
And obtain accurate data.
Although disclosing embodiment of the present utility model and accompanying drawing for the purpose of illustration, those skilled in the art can be with
Understand：In without departing from this utility model and spirit and scope of the appended claims, various replacements, change and modifications all be can
Can, therefore, scope of the present utility model is not limited to embodiment and accompanying drawing disclosure of that.
Claims (4)
1. a kind of hydraulic torque wrench high-precision measuring device, it is characterised in that：Including lower carriage, upper bracket, measurement contiguous block,
Hydrostatic bearing, measuring arm of force, pulling force sensor and pressure transducer, the top interval of lower carriage are provided with a upper bracket, on this
A vertically axial hydrostatic bearing is coaxially installed with support, and torque wrench to be measured is seated between lower carriage and upper bracket,
Its torque output shaft is by the measurement contiguous block of upper bracket and concentric with hydrostatic bearing；In the radial direction side outer wall of hydrostatic bearing
A measuring arm of force is fixed with, the measuring arm of force is connected with a pulling force sensor.
2. hydraulic torque wrench high-precision measuring device according to claim 1, it is characterised in that：The hydrostatic bearing oil
Film is supported as freely rotating without friction between suspended state and upper bracket, and the tangential force of hydraulic torque wrench output passes through static pressure system
The hydrostatic bearing oil film of system is offset.
3. hydraulic torque wrench high-precision measuring device according to claim 1, it is characterised in that：The pulling force sensor
Computer is connected to by data wire.
4. hydraulic torque wrench high-precision measuring device according to claim 1, it is characterised in that：In hydraulic torque wrench
Hydraulic oil intake line on a pressure transducer is installed, the pressure transducer connects computer by data wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621011579.2U CN206038210U (en) | 2016-08-31 | 2016-08-31 | Hydraulic torque spanner high accuracy metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621011579.2U CN206038210U (en) | 2016-08-31 | 2016-08-31 | Hydraulic torque spanner high accuracy metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038210U true CN206038210U (en) | 2017-03-22 |
Family
ID=58300342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621011579.2U Expired - Fee Related CN206038210U (en) | 2016-08-31 | 2016-08-31 | Hydraulic torque spanner high accuracy metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206038210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115401A (en) * | 2018-09-17 | 2019-01-01 | 苏州莱测检测科技有限公司 | A kind of full-automatic twisted torque wrench calibrating instrument |
-
2016
- 2016-08-31 CN CN201621011579.2U patent/CN206038210U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115401A (en) * | 2018-09-17 | 2019-01-01 | 苏州莱测检测科技有限公司 | A kind of full-automatic twisted torque wrench calibrating instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170330 Address after: 300180 Hedong District, Tianjin Jintang Road, No. 174 Patentee after: TIANJIN RESEARCH INSTITUTE OF ELECTRIC SCIENCE Co.,Ltd. Patentee after: TIANJIN TIANCHUAN ELECTRIC CONTROL EQUIPMENT DETECTION CO.,LTD. Address before: 300180 Hedong District, Tianjin Jintang Road, No. 174 Patentee before: TIANJIN RESEARCH INSTITUTE OF ELECTRIC SCIENCE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 |