CN205642701U - Torque wrench calibrator - Google Patents
Torque wrench calibrator Download PDFInfo
- Publication number
- CN205642701U CN205642701U CN201620489588.6U CN201620489588U CN205642701U CN 205642701 U CN205642701 U CN 205642701U CN 201620489588 U CN201620489588 U CN 201620489588U CN 205642701 U CN205642701 U CN 205642701U
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- gear
- locking
- hand wheel
- handwheel
- torque wrench
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Abstract
The utility model relates to a torque wrench calibrator, the hand wheel of casing lateral part is located including the casing and through the hand wheel axle, be provided with on the casing and lock the hand wheel in the hand wheel locking mechanical system of specific circumference position, hand wheel locking mechanical system includes locking seat, the last locking chamber that sets up along hand wheel axle axial of locking seat, locking seat is provided with and locks the cooperation mouth of chamber UNICOM on the terminal surface of hand wheel, this locking intracavity slides and is provided with the clamping block, be provided with reset spring between locking chamber and the clamping block, the hand wheel is provided with the locking groove along the circumference equidistance on locking seat's terminal surface, be provided with on the clamping block extend to the cooperation mouthful outside and with the sticking department of locking flute profile form looks adaptation, the side of clamping block relative slippage direction is provided with the manually operation piece that extends to the locking seat outside, the last spout that supplies the manually operation piece to slide along hand wheel axle axial that is provided with of locking seat. When the scheme is adopted, the utility model provides a can carry out the torque wrench calibrator that locks with hand wheel circumference position.
Description
Technical field
This utility model belongs to the technical field measuring test, particularly to a kind of torque wrench calibrator being applicable to high-torque product test.
Background technology
Torque test equipment is a kind of quality control apparatus, can be used for the calibration of torque sensor, and the test of the screw-down torque of the securing member such as the driving torque of dynamical system, bolt, it is ensured that the torque data of product is accurate.Owing to torque measurement is critically important measure the item in instrument and meter industry, and current measurement equipment uses is mostly simple drive mechanism, therefore the measurement for moment of torsion can not precisely be held, and force requires higher during operation, the suitability is poor, when particularly measuring high pulling torque product, often do not reach good effect, bring inconvenience to concrete work；Secondly, under some special experimental conditions, need handwheel and hand wheel shaft to keep single angle, affect experimental configuration in order to avoid clashing into or misrouting, need handwheel circumferential position is locked, but instrument of today does not possess this function.
Summary of the invention
For the deficiencies in the prior art, this utility model provides one can enter line-locked torque wrench calibrator by handwheel circumferential position.
This utility model be employed technical scheme comprise that, a kind of torque wrench calibrator, the indication mechanism that the handwheel including housing, being located at housing sidepiece by hand wheel shaft, the drive mechanism being located at enclosure interior and sensing mechanism are connected with sensing mechanism, described handwheel, drive mechanism, sensing mechanism are sequentially connected with indication mechanism, described drive mechanism includes gear train and the worm and gear group being equipped with, described gear train is equipped with handwheel, and described worm and gear group is equipped with sensing mechanism;nullDescribed sensing mechanism is provided with torque wrench arrangement portion，The side in described torque wrench arrangement portion also coordinates and is provided with positive stop，The hand-wheel locking mechanism that hand wheel lock is scheduled specific circumferential position it is provided with on described housing，Described hand-wheel locking mechanism includes locking seat，Along the latch well that hand wheel shaft is axially arranged on described locking seat，Described locking seat towards be provided with on the end face of handwheel with latch well UNICOM coordinate mouth，In this latch well, sliding is provided with clamping block，The back-moving spring resetted by clamping block it is provided with to handwheel between described latch well and clamping block，Described handwheel has circumferentially been placed equidistant lock slots on the end face of locking seat，It is provided with on described clamping block and extends to coordinate outside mouth and the sticking department suitable with lock slots shape，The side in described clamping block Relative sliding direction is provided with and extends to lock the manual operation block outside seat，It is provided with, on described locking seat, the chute supplying manual operation block along hand wheel shaft axial slip.
Preferably, described chute is provided with the opening U-shaped elastic component towards manual operation block away from the end of handwheel, is provided with the operating block limit chamber of extruding manual operation block in described U-shaped elastic component.
Preferably, described housing is provided with for locking the seat sliding rail close and far from handwheel.
Preferably, described gear train includes the first gear being located on the hand wheel shaft of handwheel, the second gear of engaging on the gear shaft of being located at hand wheel shaft side and with the first gear and the second gear are coaxially disposed the 3rd gear and the 4th gear engaged with the 3rd gear;Described worm and gear group includes the worm screw being coaxially disposed with the 4th gear and the worm gear being equipped with described worm screw.
Preferably, described sensing mechanism includes that force-sensing sensor, described force-sensing sensor are located in the rotary shaft of described worm gear, and described torque wrench arrangement portion is located in described rotary shaft.
Preferably, described drive mechanism is additionally provided with self-locking device, and described self-locking device is located in worm and gear group.
Preferably, described indication mechanism includes that display screen, described display screen are connected with force-sensing sensor.
This utility model provides a kind of torque wrench calibrator optimizing structure, the hands being sequentially connected with by setting is taken turns, drive mechanism, sensing mechanism and indication mechanism, and drive mechanism is set to gear train and the structure of worm and gear group including being equipped with, gear train is equipped with handwheel, worm and gear group is equipped with sensing mechanism, operator is made only to need to rotate hands wheel, torsion is passed to gear train, finally worm gear is driven to make the force-sensing sensor of sensing mechanism rotate by worm screw, it is connected on force-sensing sensor simultaneously because torque wrench one end of sensing mechanism is stuck in the other end on positive stop, i.e. rotated by force-sensing sensor and produce force value, and on indication mechanism, show numerical value;During this utility model operation, force requires relatively low, it is particularly well suited to measure high pulling torque product, bearing capacity is greatly improved, stable drive, noise is little, and the biggest gear ratio can be obtained, more more compact than crossed helical gears mechanism, it is suitable in practical operation using, when needs locking handwheel circumferential position, clamping block is resetted by back-moving spring to handwheel, the sticking department of clamping block stretches into lock slots and constitutes the snap-fit of handwheel, make it cannot continue to rotate, and when needs rotate on a large scale or unlock, pressing manual operation block can make sticking department depart from lock slots, U-shaped elastic component stops back-moving spring to reset, allow the operator to rotation hand wheel on a large scale, sliding rail then uses the function that can the most temporarily release locking automatically.
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of this utility model detailed description of the invention；
Fig. 2 is the backsight structural representation of this utility model detailed description of the invention;
Fig. 3 is the enlarged drawing of A in Fig. 1.
Detailed description of the invention
As shown in the figure, this utility model relates to a kind of torque wrench calibrator, the handwheel 3 of including housing 1, being located at housing 1 sidepiece by hand wheel shaft 2, it is located at the indication mechanism that the drive mechanism within housing 1 and sensing mechanism are connected with sensing mechanism, described handwheel 3, drive mechanism, sensing mechanism are sequentially connected with indication mechanism, drive mechanism includes gear train and the worm and gear group being equipped with, gear train is equipped with handwheel 3, and worm and gear group is equipped with sensing mechanism;Sensing mechanism is provided with torque wrench arrangement portion 4, and the side in torque wrench arrangement portion 4 also coordinates and is provided with positive stop 5.
The 3rd gear 9 that the second gear 8 engaged on the gear shaft 7 that gear train includes the first gear 6 being located on the hand wheel shaft 2 of handwheel 3, be located at hand wheel shaft 2 side and with the first gear 6 is coaxially disposed with the second gear 8 and the 4th gear 10 engaged with the 3rd gear 9;Worm and gear group includes the worm screw 11 being coaxially disposed with the 4th gear 10 and the worm gear 120 being equipped with worm screw 11.
Sensing mechanism includes that force-sensing sensor, force-sensing sensor are located in the rotary shaft 13 of worm gear 12, and torque wrench arrangement portion 4 is located in rotary shaft 13.
Operation principle of the present utility model is: rotate handwheel 3, torsion is transmitted step by step by first gear the 6, second gear the 8, the 3rd gear 9 and the 4th gear 10, it is coaxially disposed with the 4th gear 10 due to the worm screw 11 of worm and gear group and worm gear 12 is equipped with worm screw 11, the torsion being delivered to the 4th gear 10 finally can be driven worm gear 12 by worm screw 11 so that the force-sensing sensor being located in worm gear 12 rotary shaft 13 rotates;Meanwhile, one end of torque wrench is stuck on positive stop 5, and the other end is connected in the torque wrench arrangement portion 4 of the rotary shaft 13 of force-sensing sensor, i.e. produces force value by the rotation of force-sensing sensor, and shows on indication mechanism.
In this utility model, assembling the structure of conjunction by drive mechanism is set to gear train and worm and gear, can obtain the biggest gear ratio, compared with crossed helical gears, mechanism is the compactest;Owing to being linear contact lay between the flank of tooth of meshed gears two-by-two so that bearing capacity is greatly improved, and is more suitable for the torque measurement operation of high-torque product;Owing to the transmission of worm and gear group is equivalent to worm drive, for multiple tooth engaged transmission, so transmission is the most steady, noise is the least.
In this utility model, have employed the structure that gear train is set in drive mechanism, torsion is sequentially transmitted by four gears, by the pattern of motor, make to rotate the required power applied of handwheel 3 significantly to reduce, detect the lightest so that use of the present utility model is accessible, use crowd more extensive.Drive mechanism is additionally provided with self-locking device, and self-locking device is located in worm and gear group.
In this utility model; drive mechanism on be provided with self-locking device; integrated testability instrument is made to have self-locking performance; reverse self-locking can be realized; i.e. can only be driven worm gear 12 by worm screw 11; and worm screw 11 can not be driven by worm gear 12, can effectively prevent handwheel 3 from rebounding in operation rotation process, the personal safety of protection operator.
Indication mechanism includes that display screen, display screen are connected with force-sensing sensor.
nullThis utility model solves in prior art，For moment of torsion measurement equipment use be mostly simple drive mechanism，And the measurement for moment of torsion caused can not precisely be held，And force requires higher during operation，The suitability is poor，When particularly measuring high pulling torque product，Often do not reach good effect，The problem made troubles to concrete work，The handwheel 3 being sequentially connected with by setting、Drive mechanism、Sensing mechanism and indication mechanism，And drive mechanism is set to gear train and the structure of worm and gear group including being equipped with，Gear train is equipped with handwheel 3，Worm and gear group is equipped with sensing mechanism，Operator is made only to need to rotate handwheel 3，Torsion is passed to gear train，Finally worm gear 12 is driven to make the force-sensing sensor of sensing mechanism rotate by worm screw 11，Simultaneously because torque wrench one end of sensing mechanism is stuck on positive stop 5，The other end is connected on force-sensing sensor，I.e. rotated by force-sensing sensor and produce force value，And on indication mechanism, show numerical value;During this utility model operation, force requires relatively low, is particularly well suited to measure high pulling torque product, and bearing capacity is greatly improved, stable drive, and noise is little, and can obtain the biggest gear ratio, more more compact than crossed helical gears mechanism, is suitable in practical operation using.
nullThe hand-wheel locking mechanism that handwheel 3 is locked in specific circumferential position it is provided with on housing 1，Hand-wheel locking mechanism includes locking seat 14，Along the latch well 141 that handwheel 3 axle is axially arranged on locking seat 14，Locking seat 14 towards be provided with on the end face of handwheel 3 with latch well 141 UNICOM coordinate mouth 142，In this latch well 141, sliding is provided with clamping block 143，The back-moving spring 144 resetted by clamping block 143 it is provided with to handwheel 3 between latch well 141 and clamping block 143，Handwheel 3 has circumferentially been placed equidistant lock slots 31 on the end face of locking seat 14，It is provided with on clamping block 143 and extends to coordinate outside mouth 142 and the sticking department 1431 suitable with lock slots 31 shape，The side in clamping block 143 Relative sliding direction is provided with and extends to lock the manual operation block 1432 outside seat 14，The chute 145 supplying manual operation block 1432 along handwheel 3 axle axial slip it is provided with on locking seat 14，Chute 145 is provided with the opening U-shaped elastic component 146 towards manual operation block 1432 away from the end of handwheel 3，The operating block limit chamber 1461 of extruding manual operation block 1432 it is provided with in U-shaped elastic component 146，It is provided with on housing 1 for locking the seat 14 sliding rail 15 close and far from handwheel 3.
When needs locking handwheel 3 circumferential position, clamping block 143 is resetted by back-moving spring 144 to handwheel 3, the sticking department 1431 of clamping block 143 stretches into lock slots 31 and constitutes the snap-fit of handwheel 3, make it cannot continue to rotate, and when needs rotate on a large scale or unlock, pressing manual operation block 1432 can make sticking department 1431 depart from lock slots 31, U-shaped elastic component stops back-moving spring 144 to reset, allowing the operator to rotation hand wheel 3 on a large scale, sliding rail 15 then uses the function that can the most temporarily release locking automatically.
Claims (7)
1. a torque wrench calibrator, the indication mechanism that the handwheel including housing, being located at housing sidepiece by hand wheel shaft, the drive mechanism being located at enclosure interior and sensing mechanism are connected with sensing mechanism, described handwheel, drive mechanism, sensing mechanism are sequentially connected with indication mechanism, it is characterized in that: described drive mechanism includes gear train and the worm and gear group being equipped with, described gear train is equipped with handwheel, and described worm and gear group is equipped with sensing mechanism；nullDescribed sensing mechanism is provided with torque wrench arrangement portion，The side in described torque wrench arrangement portion also coordinates and is provided with positive stop，The hand-wheel locking mechanism that hand wheel lock is scheduled specific circumferential position it is provided with on described housing，Described hand-wheel locking mechanism includes locking seat，Along the latch well that hand wheel shaft is axially arranged on described locking seat，Described locking seat towards be provided with on the end face of handwheel with latch well UNICOM coordinate mouth，In this latch well, sliding is provided with clamping block，The back-moving spring resetted by clamping block it is provided with to handwheel between described latch well and clamping block，Described handwheel has circumferentially been placed equidistant lock slots on the end face of locking seat，It is provided with on described clamping block and extends to coordinate outside mouth and the sticking department suitable with lock slots shape，The side in described clamping block Relative sliding direction is provided with and extends to lock the manual operation block outside seat，It is provided with, on described locking seat, the chute supplying manual operation block along hand wheel shaft axial slip.
A kind of torque wrench calibrator the most according to claim 1, it is characterized in that: described chute is provided with the opening U-shaped elastic component towards manual operation block away from the end of handwheel, in described U-shaped elastic component, be provided with the operating block limit chamber of extruding manual operation block.
A kind of torque wrench calibrator the most according to claim 2, it is characterised in that: it is provided with on described housing for locking the seat sliding rail close and far from handwheel.
A kind of torque wrench calibrator the most according to claim 1, it is characterised in that: described gear train includes the first gear being located on the hand wheel shaft of handwheel, the second gear of engaging on the gear shaft of being located at hand wheel shaft side and with the first gear and the second gear are coaxially disposed the 3rd gear and the 4th gear engaged with the 3rd gear；Described worm and gear group includes the worm screw being coaxially disposed with the 4th gear and the worm gear being equipped with described worm screw.
A kind of torque wrench calibrator the most according to claim 2, it is characterised in that: described sensing mechanism includes that force-sensing sensor, described force-sensing sensor are located in the rotary shaft of described worm gear, and described torque wrench arrangement portion is located in described rotary shaft.
A kind of torque wrench calibrator the most according to claim 1, it is characterised in that: described drive mechanism is additionally provided with self-locking device, and described self-locking device is located in worm and gear group.
A kind of torque wrench calibrator the most according to claim 1, it is characterised in that: described indication mechanism includes that display screen, described display screen are connected with force-sensing sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620489588.6U CN205642701U (en) | 2016-05-25 | 2016-05-25 | Torque wrench calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620489588.6U CN205642701U (en) | 2016-05-25 | 2016-05-25 | Torque wrench calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205642701U true CN205642701U (en) | 2016-10-12 |
Family
ID=57053572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620489588.6U Active CN205642701U (en) | 2016-05-25 | 2016-05-25 | Torque wrench calibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205642701U (en) |
-
2016
- 2016-05-25 CN CN201620489588.6U patent/CN205642701U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |