CN108375451B - Torque wrench calibrating device and loading assembly thereof - Google Patents
Torque wrench calibrating device and loading assembly thereof Download PDFInfo
- Publication number
- CN108375451B CN108375451B CN201810383511.4A CN201810383511A CN108375451B CN 108375451 B CN108375451 B CN 108375451B CN 201810383511 A CN201810383511 A CN 201810383511A CN 108375451 B CN108375451 B CN 108375451B
- Authority
- CN
- China
- Prior art keywords
- running
- spanner
- holding bracket
- arc
- wrench
- 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.)
- Active
Links
- 238000012795 verification Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 26
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000004088 simulation Methods 0.000 abstract description 8
- 210000000078 claw Anatomy 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000323 shoulder joint Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000003857 wrist joint Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
- G01L25/003—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a torque wrench calibrating device and a loading component thereof, wherein the torque wrench calibrating device comprises a detecting table, a standard torque sensor is arranged on the detecting table, the torque wrench calibrating device also comprises a loading component, the loading component comprises an arc-shaped guiding structure, the circle center of the arc-shaped guiding structure and the detecting end of the standard torque sensor are coaxially arranged, the loading assembly further comprises a bracket force application mechanism for driving the spanner holding bracket to move along the arc-shaped guide structure. The invention solves the problem of poor simulation degree in the verification process caused by the fact that the force application direction of the spanner is not perpendicular to the spanner handle in the prior art.
Description
Technical Field
The invention relates to a torque wrench verification device and a loading assembly thereof in the verification field.
Background
At present, in the production and manufacturing links of bolt assembly, the fastening force of the bolts needs to be ensured to be kept within the range specified by the national standard, it is important to determine the accuracy of the torque wrench itself for the assembly bolt, so that it is necessary to verify the torque sensor in the torque wrench by means of a verification device. The existing torque wrench verification device is a manual torque wrench verification instrument disclosed in Chinese patent CN205262672U, the torque wrench verification instrument comprises a detection table provided with a standard torque sensor, a force measuring assembly and a loading assembly, the detection table comprises a shell, a torque acquisition plate assembly and a torque processing plate assembly which are connected through electric signals, the loading assembly comprises a fixed frame, a lead screw, a feed nut, a guide rod, a sliding block and a manual loading wheel, the detection end of the standard torque sensor is sleeved with an adapter, the end part of the adapter is of an octagonal hole structure, the force measuring assembly comprises a force measuring plate to be measured and a blocking arm, one end of the force measuring plate is sleeved on the adapter, the blocking arm is arranged at the other end of the force measuring plate, a sliding groove extending along the length direction of the force measuring plate is formed in the lower plate surface of the force measuring plate, and the sliding block is inserted into the sliding groove.
When the torque wrench is used, the sleeve corresponding to the torque wrench to be tested is selected to be sleeved on the adapter, the head of the torque wrench to be tested is clamped on the sleeve, the handle of the torque wrench is arranged on the force measuring plate and abuts against the blocking arm, the manual loading wheel is rotated, the sliding block drives the force measuring plate to rotate around the adapter to have a rotation trend under the displacement of the feed nut, so that torque is generated, and the torque of the torque wrench to be tested can be obtained through the acquisition plate assembly and the processing plate assembly in the detection table. The existing torque wrench verification has the following problems: in general, the working condition of the torque spanner in the verification process has larger difference from the actual working condition, and the overall simulation degree is poorer, firstly, because the angular displacement of the standard torque sensor which can rotate is smaller, the detected torque spanner is directly and rigidly connected with the standard torque sensor, and in the actual application, the action torque is mostly realized and grows up by screwing the bolt, when the torque spanner acts, the rotation torque of the acted bolt gradually increases along with the increase of the angular displacement, and in the past detection, the torque spanner is directly contacted with the standard torque sensor, the torque change rate is larger, and the detection precision is affected; in addition, the simulation degree of the wrenching process is also insufficient, the sliding block is driven by the hand wheel to move linearly, the linear movement track of the sliding block is inconsistent with the movement track of a human hand in the actual operation process, in order to save labor in the actual use, the force application direction of the human hand to the wrench handle is always perpendicular to the wrench handle, meanwhile, the force application direction of the sliding block to the force measuring plate is inconsistent with the direction in the actual operation process, and the simulation degree of the wrench during the wrenching process is poor.
Disclosure of Invention
The invention aims to provide a loading assembly which is used for solving the problem that in the prior art, the force application direction of a spanner is not perpendicular to a spanner handle, so that the simulation degree of the verification process is poor.
In order to solve the technical problems, the technical scheme of the torque wrench verification device is as follows:
the utility model provides a moment of torsion spanner calibrating installation, includes the detection platform, is provided with standard torque sensor on the detection platform, and moment of torsion spanner calibrating installation still includes loading subassembly, and loading subassembly includes arc guide structure, and the centre of a circle of arc guide structure and the detection end coaxial line setting of standard torque sensor are connected with the spanner of rotation axis and the parallel arrangement of detection end axis of standard torque sensor and are used for driving corresponding spanner handle and hold the bracket on the arc guide structure, and loading subassembly still includes the drive the spanner holds the bracket and follows the bracket force application mechanism of arc guide structure direction removal.
The loading assembly comprises a guide plate, and the arc-shaped guide structure is an arc-shaped guide long hole formed in the guide plate.
The spanner holding bracket is assembled in the arc-shaped guide long hole through the guide pin shaft, the axis of the guide pin shaft is parallel to the axis of the detection end of the standard torque sensor, and the spanner holding bracket is rotatably connected to the guide pin shaft.
The spanner holding bracket is provided with a holding bracket which is used for placing the spanner handle and extends along the extending direction of the spanner handle.
The bracket force application mechanism comprises a flexible transmission belt driven by a belt wheel, and the spanner holding bracket is connected to the flexible transmission belt.
A supporting rolling body for limiting the interval between the spanner holding bracket and the wire guide plate is arranged between the guide plate and the spanner holding bracket.
One belt wheel is a driving wheel driven by a gear motor, and a motor shell of the gear motor is connected with a corresponding fixed base body through a joint bearing.
The technical scheme of the loading assembly in the invention is as follows:
the loading assembly of the torque wrench calibrating device comprises an arc-shaped guide structure, the circle center of the arc-shaped guide structure is coaxially arranged with the detection end of the standard torque sensor, a wrench holding bracket which is parallel to the detection end axis of the standard torque sensor in rotation axis is connected to the arc-shaped guide structure in a guiding manner and used for driving a corresponding wrench handle to move, and the loading assembly further comprises a bracket force application mechanism which drives the wrench holding bracket to move along the arc-shaped guide structure in a guiding manner.
The spanner holding bracket is assembled in the arc-shaped guide long hole through a guide pin shaft, the axis of the guide pin shaft is parallel to the axis of the detection end of the standard torque sensor, and the spanner holding bracket is rotationally connected to the guide pin shaft
The bracket force application mechanism comprises a flexible transmission belt driven by a belt wheel, and the spanner holding bracket is connected to the flexible transmission belt.
The beneficial effects of the invention are as follows: when the wrench is used, the wrench holding bracket of the loading assembly applies force to the wrench handle of the torque wrench and drives the wrench handle to move, and the wrench holding bracket moves along the guiding direction of the arc-shaped guiding structure, so that the movement track of the wrench holding bracket moves in an arc manner by taking the axis of the detection end of the standard torque sensor as the center, and the rotation axis of the wrench holding bracket is parallel to the axis of the detection end of the standard torque sensor, so that the wrench holding bracket can also perform rotation adjustment of the wrench holding bracket in the moving process of the wrench holding bracket, the acting force direction of the wrench holding bracket on the wrench handle is always perpendicular to the extending direction of the wrench handle, and the wrench holding bracket is consistent with the actual wrench holding process application force, and has higher simulation degree.
Drawings
FIG. 1 is a schematic diagram of a torque wrench verification device according to example 1 of the present invention;
FIG. 2 is a schematic view of the construction of the spanner loading assembly of embodiment 1;
FIG. 3 is a schematic illustration of the engagement of the torque wrench with the wrench bracket of FIG. 2;
FIG. 4 is a schematic view of the torque wrench verification device of example 2 of the present invention;
fig. 5 is a schematic view of the intermediate force-transmitting member of fig. 3.
Detailed Description
Example 1 of a torque wrench verification apparatus is shown in fig. 1 to 3: the device comprises a detection table and a spanner loading assembly, wherein a standard torque sensor 9 is fixed on the detection table, and the detection end of the standard torque sensor 9 is of an inner square hole structure. The torque wrench verification device further comprises a load mechanism, the load mechanism comprises a first running-in part 3 and a second running-in part 4 which can rotate relatively, the first running-in part is in threaded connection with the second running-in part in the embodiment, the first running-in part is equivalent to a bolt, the second running-in part is equivalent to a nut, the upper end of the first running-in part is a first running-in part outer square head 6, the first running-in part outer square head 6 is used for being in anti-rotation insertion fit with a torque output sleeve 2 of a verified torque wrench, the first running-in outer square head can move up and down relative to the torque output sleeve of the torque wrench, the lower end of the second running-in part is a first running-in part outer square head 5, and the second running-in part outer square head 5 is used for being in anti-rotation insertion connection with a detection end of a standard torque sensor 9.
The first running-in piece further comprises a stop block 7 which is arranged at intervals with the square head outside the first running-in piece, the structural effect of the stop block is equal to that of the head of a bolt, the lower end face of the stop block forms a first running-in piece friction end face 8, the upper end face of the second running-in piece forms a second running-in piece friction end face which is in contact friction fit with the first running-in piece friction end face, the first running-in piece friction end face and the second running-in piece friction end face are perpendicular to the axis of the first running-in piece, when the first running-in piece friction end face and the second running-in piece friction end face are in contact, the head of the similar bolt is propped against the nut, and along with the continued rotation of the torque spanner, larger and larger rotation resistance moment is generated between the first running-in piece friction end face and the second running-in piece friction end face, and the use environment of the torque spanner is truly simulated.
The plate loading assembly in the embodiment comprises a bracket force application mechanism, wherein the bracket force application mechanism comprises two belt wheels 10, one belt wheel is a driving wheel driven by a speed reducing motor, flexible driving belts 20 which rotate under the driving of the speed reducing motor are wound on the two belt wheels, a guide pin shaft 15 is connected to the flexible driving belts 20, a spanner holding bracket 12 is rotatably sleeved on the guide pin shaft, a holding bracket 13 for placing a spanner handle 14 of a torque spanner 1 is arranged on the spanner holding bracket 12, the loading assembly further comprises a guide plate 11 positioned between the flexible driving belts, an arc-shaped guide long hole 17 is formed in the guide plate 11, the circle center of the arc-shaped guide long hole 17 is positioned on the axis of a standard torque sensor 9, and the guide pin shaft 15 is in guide movement fit with the arc-shaped guide long hole 17. The motor casing 18 of the gear motor is connected with the corresponding fixed base body through a knuckle bearing 19. When the device is used, the flexible transmission belt is driven to rotate through the gear motor, the flexible transmission belt moves through the guide pin shaft, the guide pin shaft moves along the arc track in the guide long hole, the force application direction of the spanner holding bracket to the torque spanner is always perpendicular to the extending direction of the torque spanner, the joint bearing is identical to the shoulder joint of a human body, the hinge connection between the guide pin shaft and the spanner holding bracket simulates the wrist joint of the human body, the simulation is more real, the simulation degree is higher, the verification precision is improved, the support rolling bodies 16 are arranged between the guide plate and the spanner holding bracket, and the distance between the spanner holding bracket and the guide plate is unchanged. The transmission belt is flexible, so that the transmission belt can adapt to the arc-shaped movement track of the spanner holding bracket. The arc-shaped guide long holes can be replaced by arc-shaped guide long grooves or other arc-shaped guide structures such as two rows of rollers which are arranged in an arc shape; the spanner holding bracket can also be in guide fit with the arc-shaped guide structure through a guide wheel; the holding bracket on the spanner holding bracket can be replaced by an L-shaped stopping concave part, so long as the function of supporting the spanner handle and driving the spanner handle to move can be achieved; the bracket force application mechanism for driving the spanner holding bracket to move can also be a flexible transmission belt type force application mechanism, for example, the spanner holding bracket is pushed to move by a rigid push rod, the rigid push rod can be a pneumatic rod, a hydraulic rod or an electric push rod, one end of the rigid push rod is hinged with the spanner holding bracket, the other end of the rigid push rod is hinged with a fixed base body, the fixed base body in the embodiment refers to a base body which can not move relative to the spanner holding bracket, and the spanner holding bracket can move along an arc-shaped guide structure through the hinged relation of the two ends of the rigid push rod and the change of the length of the rigid push rod.
In other embodiments of the invention: the stop block on the first running-in piece is not required to be arranged, and the first running-in piece can be a bolt at the moment, and the lower end face of the head part of the bolt forms the friction end face of the first running-in piece; when the torque output end of the torque spanner is of an external square head structure, an inner square hole matched with the external square head structure is formed in the first running-in part, and the same reason is that when the detection end of the standard torque sensor is of the external square head structure, an inner square hole matched with the external square head structure is required to be formed in the second running-in part, and of course, the detection ends of the first running-in part and the standard torque sensor can be connected through bolt fixing or integrally arranged.
Example 2 of a torque wrench verification apparatus is shown in fig. 4 to 5: unlike embodiment 1, the first running-in part 3 and the second running-in part 4 are not connected by threads, the first running-in part is provided with a first running-in part force transmission surface at the periphery, the second running-in part is provided with a second running-in part force transmission surface which is matched with the first running-in part force transmission surface in a rotating way, the first running-in part force transmission surface is a rotating surface taking the axis of the first running-in part as a rotating axis, the first running-in part force transmission surface comprises a cylindrical surface 25 and two conical surfaces 26 arranged on the upper side and the lower side of the cylindrical surface, the second running-in part is of a split structure, the second running-in part comprises two split valves which are independently arranged, the torque wrench verification device further comprises a loading mechanism for applying radial loading force to one of the split second running-in parts, the loading mechanism comprises a loading cylinder 22, a loading plate 23 is arranged on a piston rod of the loading cylinder, and a first rotating bearing 24 is arranged between the loading plate and the corresponding one split valve, so that the loading cylinder does not influence the rotation of the second running-in part. The second running-in piece is connected with the detection end of the standard torque sensor 9 through the middle force transmission piece 30, the middle force transmission piece comprises a force transmission piece outer square head 34, a connecting disc 33 is connected to the upper end of the force transmission piece outer square head, two connecting claws 32 are arranged at the upper end of the connecting disc, one connecting claw 32 is fixedly connected with one second running-in piece, a connecting claw connecting hole 31 is formed in the other running-in piece, the upper end of the other connecting claw is inserted into the connecting claw connecting hole 31, the length of the connecting claw connecting hole 31 in the radial direction along the second running-in piece is longer than the thickness of the corresponding connecting claw, and therefore the connecting claw cannot influence radial loading of a loading mechanism on the second running-in piece. In the invention, the rotation resistance moment between the first running-in piece and the second running-in piece is adjusted by the loading force of the loading mechanism, the radial loading force is applied to one of the second running-in pieces by the loading cylinder 22, the rotation resistance moment is generated between the force transmission surface of the first running-in piece and the force transmission surface of the second running-in piece, and the action torque can grow along with the increase of the angular displacement. For example, in the actual verification process, the torque can be from 50% to 120% of the test torque level, which is equivalent to an angular displacement of not more than 21 degrees, and because the force transmission surface of the first running-in part and the force transmission surface of the second running-in part are both in a rotary structure, the first running-in part cannot generate a screwing action relative to the second running-in part, so that frequent wire withdrawal process can be avoided, and in the embodiment 1, the first running-in part needs to be returned to the original position after each verification is completed. Item 35 in the figure shows a test bench support, between the first running-in 3 and the second running-in 4 and the test bench support 35 bearings 21 are arranged. In other embodiments of the invention, the first running-in force transfer surface may also be a plane perpendicular to the first running-in axis, where the loading mechanism may adjust the rotational resistance moment between the first and second running-ins by applying an axial load to the corresponding running-in. Item 2 in the drawing represents the torque output sleeve of the torque wrench; the loading cylinder may also be replaced by other loading elements capable of outputting a loading force, such as electric pushrods, spring loading, etc.
Claims (5)
1. The utility model provides a moment of torsion spanner calibrating installation, includes the detection platform, is provided with standard torque sensor on the detection platform, its characterized in that: the torque wrench calibrating device also comprises a loading assembly, the loading assembly comprises an arc-shaped guide structure, the circle center of the arc-shaped guide structure is coaxially arranged with the detection end of the standard torque sensor, a wrench holding bracket which is parallel to the detection end axis of the standard torque sensor and is used for driving the corresponding wrench handle to move is connected to the arc-shaped guide structure in a guiding way, the loading assembly also comprises a bracket force application mechanism which drives the wrench holding bracket to move along the arc-shaped guide structure in a guiding way, the loading assembly comprises a guide plate, the arc-shaped guide structure is an arc-shaped guide long hole which is arranged on the guide plate, the wrench holding bracket is assembled in the arc-shaped guide long hole through a guide pin shaft, the axis of the guide pin shaft is parallel to the detection end axis of the standard torque sensor, the wrench holding bracket is rotationally connected to the guide pin shaft, the bracket force application mechanism comprises a flexible transmission belt driven by a belt wheel, the wrench holding bracket is connected to the flexible transmission belt, the torque wrench calibrating device further comprises a load mechanism, the load mechanism comprises a first running-in piece and a second running-in piece which can rotate relatively, the upper end of the first running-in piece is a first running-in piece outer square head, the first running-in piece outer square head is used for being in anti-rotation insertion fit with a torque output sleeve of a torque wrench to be calibrated, the first running-in outer square head can move up and down relative to the torque output sleeve of the torque wrench, the lower end of the second running-in piece is a first running-in piece outer square head, and the second running-in piece outer square head is used for being in anti-rotation insertion connection with a detection end of a standard torque sensor.
2. The torque wrench verification device of claim 1, wherein: the spanner holding bracket is provided with a holding bracket which is used for placing the spanner handle and extends along the extending direction of the spanner handle.
3. The torque wrench verification device of claim 1, wherein: a supporting rolling body for limiting the interval between the spanner holding bracket and the wire guide plate is arranged between the guide plate and the spanner holding bracket.
4. The torque wrench verification device of claim 1, wherein: one belt wheel is a driving wheel driven by a gear motor, and a motor shell of the gear motor is connected with a corresponding fixed base body through a joint bearing.
5. The loading subassembly of moment of torsion spanner calibrating installation, its characterized in that: the loading assembly comprises an arc-shaped guide structure, the circle center of the arc-shaped guide structure is coaxially arranged with the detection end of the standard torque sensor, the arc-shaped guide structure is connected with a spanner holding bracket, the spanner holding bracket is arranged in parallel with the detection end axis of the standard torque sensor, the spanner holding bracket is used for driving a corresponding spanner handle to move, the loading assembly further comprises a bracket force application mechanism, the spanner holding bracket is driven to move along the arc-shaped guide structure in a guiding manner, the spanner holding bracket is assembled in an arc-shaped guide long hole through a guide pin shaft, the axis of the guide pin shaft is arranged in parallel with the detection end axis of the standard torque sensor, the spanner holding bracket is rotationally connected to the guide pin shaft, the bracket force application mechanism comprises a flexible transmission belt driven by the belt pulley, the spanner holding bracket is connected to the flexible transmission belt, the loading mechanism comprises a first running-in part and a second running-in part, the upper end of the first running-in part is a square outside head, the first running-in part is used for rotationally inserting with a torque output sleeve of a driven torque output sleeve of the spanner, the first running-in square head can relatively move up and down the output sleeve of the spanner is rotationally matched with the torque output sleeve of the spanner, and the first running-in a second running-in part is used for detecting the second running-in part and is a second running-in part and is used for detecting the second running-in part and is opposite running outside end of the second running-out part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383511.4A CN108375451B (en) | 2018-04-26 | 2018-04-26 | Torque wrench calibrating device and loading assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383511.4A CN108375451B (en) | 2018-04-26 | 2018-04-26 | Torque wrench calibrating device and loading assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108375451A CN108375451A (en) | 2018-08-07 |
| CN108375451B true CN108375451B (en) | 2024-04-16 |
Family
ID=63032971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810383511.4A Active CN108375451B (en) | 2018-04-26 | 2018-04-26 | Torque wrench calibrating device and loading assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108375451B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196138A (en) * | 2019-07-11 | 2019-09-03 | 河南牛帕力学工程研究院 | A kind of standard torque spanner and torque spanner calibrating installation |
| CN112629749B (en) * | 2021-01-12 | 2023-02-28 | 郑州东辰科技有限公司 | Standard torque wrench and standard torque machine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6634260B1 (en) * | 2000-11-02 | 2003-10-21 | Jonathan R Smith | Anchored and screw assisted wrench tool |
| JP2005262336A (en) * | 2004-03-16 | 2005-09-29 | Tohnichi Mfg Co Ltd | Standardizing box of measuring apparatus for increasingly fastening torque |
| CN202631190U (en) * | 2012-06-18 | 2012-12-26 | 中国航空工业集团公司西安飞机设计研究所 | Moment wrench calibration instrument |
| CN202693200U (en) * | 2012-05-08 | 2013-01-23 | 北京东方计量测试研究所 | Automated torque wrench testing system |
| CN203396532U (en) * | 2013-08-28 | 2014-01-15 | 苏州莱测检测科技有限公司 | Torque wrench calibrator |
| CN205262672U (en) * | 2015-12-04 | 2016-05-25 | 陕西东方航空仪表有限责任公司 | Manual formula torque wrench examines and determine appearance |
| CN107782491A (en) * | 2017-02-19 | 2018-03-09 | 郑州东辰科技有限公司 | Bionical handle clamp support mechanism and torque spanner calibrating installation |
| CN107941419A (en) * | 2017-02-19 | 2018-04-20 | 郑州东辰科技有限公司 | Torque spanner calibrating installation |
| CN211954549U (en) * | 2018-04-26 | 2020-11-17 | 郑州东辰科技有限公司 | Torque wrench calibrating device and loading assembly thereof |
-
2018
- 2018-04-26 CN CN201810383511.4A patent/CN108375451B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6634260B1 (en) * | 2000-11-02 | 2003-10-21 | Jonathan R Smith | Anchored and screw assisted wrench tool |
| JP2005262336A (en) * | 2004-03-16 | 2005-09-29 | Tohnichi Mfg Co Ltd | Standardizing box of measuring apparatus for increasingly fastening torque |
| CN202693200U (en) * | 2012-05-08 | 2013-01-23 | 北京东方计量测试研究所 | Automated torque wrench testing system |
| CN202631190U (en) * | 2012-06-18 | 2012-12-26 | 中国航空工业集团公司西安飞机设计研究所 | Moment wrench calibration instrument |
| CN203396532U (en) * | 2013-08-28 | 2014-01-15 | 苏州莱测检测科技有限公司 | Torque wrench calibrator |
| CN205262672U (en) * | 2015-12-04 | 2016-05-25 | 陕西东方航空仪表有限责任公司 | Manual formula torque wrench examines and determine appearance |
| CN107782491A (en) * | 2017-02-19 | 2018-03-09 | 郑州东辰科技有限公司 | Bionical handle clamp support mechanism and torque spanner calibrating installation |
| CN107941419A (en) * | 2017-02-19 | 2018-04-20 | 郑州东辰科技有限公司 | Torque spanner calibrating installation |
| CN211954549U (en) * | 2018-04-26 | 2020-11-17 | 郑州东辰科技有限公司 | Torque wrench calibrating device and loading assembly thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108375451A (en) | 2018-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107202561B (en) | Step shaft runout detection device and detection method | |
| CN108375450B (en) | Torque spanner calibrating device | |
| CN108375451B (en) | Torque wrench calibrating device and loading assembly thereof | |
| CN110095217B (en) | Device and method for measuring friction torque of rolling bearing | |
| CN107677415B (en) | Torque wrench calibrating device | |
| CN109612615B (en) | Testing device for automobile hub bearing load friction torque | |
| CN107806807A (en) | The method in quick detection oscillating bearing gap | |
| CN116839782B (en) | Torque testing device | |
| CN107228643B (en) | Chord support inner cavity type cylindrical part positioning device and positioning method | |
| CN112504614B (en) | Rolling reset device for wind tunnel balance calibration | |
| CN107101816B (en) | Semi-floating semi-axis composite loading fatigue test stand | |
| CN107764469B (en) | Torque spanner calibrating device and bolt simulator thereof | |
| CN220120005U (en) | Crookedness detection tool that bent axle production was used | |
| CN211954548U (en) | Torque wrench calibrating device | |
| CN211954549U (en) | Torque wrench calibrating device and loading assembly thereof | |
| CN218725310U (en) | Gear performance detection device | |
| CN108414173B (en) | Device and method for measuring torsional rigidity of rubber bushing | |
| CN216050019U (en) | Arm joint module testing arrangement | |
| CN213812806U (en) | Rolling reset device for wind tunnel balance calibration | |
| CN107246855B (en) | Positioning device and positioning method for step shaft jumping detection | |
| CN110726613B (en) | Stretching extensometer suitable for large-diameter thin-wall round tube | |
| CN109540358B (en) | Interference heat-assembly double-stage cone pulley torque detection device and detection method thereof | |
| CN107764468B (en) | Torque spanner calibrating device | |
| CN217561228U (en) | Rolling friction test device | |
| CN220018812U (en) | Tightening device torque measurement and calibration tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |