CN102359845A

CN102359845A - Verification instrument of torque multiplier

Info

Publication number: CN102359845A
Application number: CN2011102146540A
Authority: CN
Inventors: 张振平; 杨益民; 任冬冬; 李振涛
Original assignee: DONGFANG INSTRUMENT FACTORY
Current assignee: DONGFANG INSTRUMENT FACTORY
Priority date: 2011-07-27
Filing date: 2011-07-27
Publication date: 2012-02-22

Abstract

The invention discloses a verification instrument of a torque multiplier. The verification instrument mainly comprises: a pedestal; a torque output sensor, which is installed on the pedestal; a guide pillar, which is fixed on the pedestal; an elevating mechanism, which is cooperatedly installed on the guide pillar; a torque input assembly, which is fixedly installed on the elevating mechanism through a horizontal support plate; and a numerically controlled digital display instrument, which is additionally arranged. The torque input assembly is composed of a stepping motor, a decelerator, a shaft coupling, a torque input sensor and an input terminal conversion adaptor, wherein the stepping motor, the decelerator, the shaft coupling, the torque input sensor and the input terminal conversion adaptor are successively in shaft connection from top to bottom. The two sensors are corresponded upwards and downwards and central axises of the two sensors are superposed; besides, the two sensors are respectively connected with the numerically controlled digital display instrument through leads. And a central position at an upper end surface of the torque input sensor is provided with a polygonal blind hole that is plugged with an output terminal conversion adaptor; and the stepping motor is controlled by the numerically controlled digital display instrument. According to the invention, the instrument can be used conveniently; detected torque multipliers with various specifications and types can be localized on the verification instrument through an output terminal conversion adaptor, so that detection can be carried out; moreover, the instrument has advantages of good versatility and accurate measuring data.

Description

The torque multiplier calibrating instrument

Technical field

The invention belongs to a kind of detecting instrument, relate to a kind of calibrating instrument of moment of torsion calibrating instrument, particularly a kind of torque multiplier.

Background technology

At present, torque multiplier has been that kind is various, and specification does not wait, and the instrument and equipment of examining and determine with verification to torque multiplier does not specially have.In the reality, detecting torque multiplier generally is to use detector for hydraulic torque wrench, and supporting again Digital Electronic Torque Wrench detects.There is following some deficiency in this mode: 1. operating difficulties, and the human factor influence is big, and the testing result accuracy is low; 2. the indicating value that shows on indicating value that shows on the Digital Electronic Torque Wrench digital display instrument and the detector for hydraulic torque wrench digital display instrument is asynchronous, and it is inaccurate to cause measuring indicating value; 3. the accuracy class that detects is lower.

Summary of the invention

The object of the invention overcomes the deficiency that is prior art, proposes the special-purpose calibrating instrument of a kind of torque multiplier.

Realize the technical scheme of above-mentioned purpose: a kind of torque multiplier calibrating instrument; Mainly by base, moment of torsion input module and a digital-control digital-display appearance of putting in addition of being installed in moment of torsion output transducer on the base, being fixed on guide pillar on the base, cooperating the elevating mechanism that is installed on the guide pillar, being fixedly mounted on the elevating mechanism through horizontal supporting plate form; Said guide pillar lower position is equipped with a back-up block; Said moment of torsion input module is made up of stepper motor, speed reduction unit, shaft coupling, moment of torsion input pickup and input end adapter that above-below direction axle successively connects; The moment of torsion input pickup is fixed on the said back up pad through a L shaped plate; Said moment of torsion input pickup and moment of torsion output transducer are corresponding up and down; Both central axes, the upper surface centre bit of moment of torsion output transducer is equipped with a polygon blind hole, is plugged with the output terminal adapter in the blind hole; Said two sensors up and down are connected with the digital-control digital-display appearance through lead respectively, and said stepper motor is electrically connected with the digital-control digital-display appearance through a driver that is installed on the base.

Have one to be wrapped in the moment of torsion output transducer at interior shell on the said base, the upper end of moment of torsion output transducer is installed on the annular end cap of shell upper surface through self-contained bearing.Spacing through the shell upper surface, can stressedly not squinting in the upper end of moment of torsion output transducer, avoids impaired.

It is reasonable, simple in structure, easy to use that the present invention constructs; The output terminal adapter of different model can be plugged on the moment of torsion output transducer quickly and easily; Elevating mechanism can rapid adjustment moment of torsion input module the position; Can the tested torque multiplier of all size model be positioned on the calibrating instrument through the output terminal adapter, implement to detect.This calibrating instrument versatility is good, and measuring accuracy is high, and measurement data is accurate.

Description of drawings

Fig. 1 is the one-piece construction synoptic diagram of one embodiment of the invention.

Fig. 2 is a user mode synoptic diagram of the present invention.

Fig. 3 is the partial schematic sectional view of lower component embodiment illustrated in fig. 1.

Fig. 4 is the vertical view of lower component embodiment illustrated in fig. 1.

Fig. 5 is a kind of shape synoptic diagram of output terminal adapter.

Among the figure: 1. digital-control digital-display appearance, 2. moment of torsion output transducer, 3. blind hole, 4. input end adapter, 5. moment of torsion input pickup, 6. shaft coupling; 7. speed reduction unit, 8. stepper motor, 9. Worm-gear assembly case, 10. back up pad, 11.L shape plate, 12. guide pillars; 13. back-up block, 14. shells, 15. drivers, 16. bases, 17. bearings, 18. end caps; 19. the output terminal adapter, 20. output terminal test interfaces, 21. electronic hand wheels, 22. torque multipliers, 23. counter-force arm.

Embodiment

Below in conjunction with accompanying drawing the present invention is described further.

Like Fig. 1, Fig. 3 and shown in Figure 4, torque multiplier calibrating instrument of the present invention mainly by base 16, be installed in moment of torsion output transducer 2 on the base 16, be fixed on guide pillar 12 on the base 16, cooperate the elevating mechanism that is installed on the guide pillar 12, moment of torsion input module and a digital-control digital-display appearance 1 of putting in addition that the back up pad 10 through level is fixedly mounted on the elevating mechanism form.Guide pillar 12 lower positions are equipped with a back-up block 13 that is used to limit torque multiplier counter-force arm 23; Elevating mechanism is a Worm-gear assembly case 9, and the casing outside is equipped with a rocking arm of handling its height displacement, and back up pad 10 is fixedly mounted on the bottom surface of Worm-gear assembly case 9; The moment of torsion input module is made up of stepper motor 8, speed reduction unit 7, shaft coupling 6, moment of torsion input pickup 5 and input end adapter 4 that above-below direction axle successively connects, and moment of torsion input pickup 5 is fixed on the L shaped plate 11, and L shaped plate 11 is fixed on the back up pad 10; Moment of torsion input pickup 5 is corresponding about in the of 2 with the moment of torsion output transducer, both central axes; The upper surface centre bit of moment of torsion output transducer 2 is equipped with a quadrilateral blind hole 3; Be plugged with the output terminal adapter 19 of connection torque multiplier as shown in Figure 5 in this blind hole 3, moment of torsion input pickup 5 is connected with digital-control digital-display appearance 1 through lead respectively with moment of torsion output transducer 2; A shell 14 that is wrapped in moment of torsion output transducer 2 is arranged on the base 16; The upper end of moment of torsion output transducer 2 is installed in through self-contained bearing 17 on the annular end cap 18 of shell 14 upper surfaces, and an output terminal test interface 20 that connects moment of torsion output transducer 2 is installed on the shell 14; Moment of torsion input pickup 5 is connected with digital-control digital-display appearance 1 through lead respectively with moment of torsion output transducer 2; A driver 15 also is installed on the base 16, an electronic hand wheel 21 is arranged on the digital-control digital-display appearance 1, connect through lead between electronic hand wheel 21, driver 15 and the stepper motor 8.

As depicted in figs. 1 and 2; When tested torque multiplier 22 through input end adapter 4 and output terminal adapter 19 behind location on the calibrating instrument of the present invention; Rotate electronic hand wheel 21 and send pulse signal to driver 15; Can handle moving stepper motor 8 and rotate, give torque multiplier 22 reinforcings through the rotation of speed reduction unit 7, moment of torsion input pickup 5 and input end adapter 4 then, the moment of torsion of the torque multiplier 22 output multiplications of this moment also acts on the moment of torsion output transducer 2.In the testing process, the torque signal on moment of torsion input pickup 5 and the moment of torsion output transducer 2 is delivered on the digital-control digital-display appearance 1 in real time, will detect data presentation through digital-control digital-display appearance 1 and come out.

Claims

1. torque multiplier calibrating instrument; It is characterized in that: mainly by base, moment of torsion input module and a digital-control digital-display appearance of putting in addition of being installed in moment of torsion output transducer on the base, being fixed on guide pillar on the base, cooperating the elevating mechanism that is installed on the guide pillar, being fixedly mounted on the elevating mechanism through horizontal supporting plate form; Said guide pillar lower position is equipped with a back-up block; Said moment of torsion input module is made up of stepper motor, speed reduction unit, shaft coupling, moment of torsion input pickup and input end adapter that above-below direction axle successively connects; The moment of torsion input pickup is fixed on the said back up pad through a L shaped plate; Said moment of torsion input pickup and moment of torsion output transducer are corresponding up and down; Both central axes, the upper surface centre bit of moment of torsion output transducer is equipped with a polygon blind hole, is plugged with the output terminal adapter in the blind hole; Said two sensors up and down are connected with the digital-control digital-display appearance through lead respectively, and said stepper motor is electrically connected with the digital-control digital-display appearance through a driver that is installed on the base.

2. according to the described torque multiplier calibrating instrument of claim 1, it is characterized in that: have one to be wrapped in the moment of torsion output transducer at interior shell on the said base, the upper end of moment of torsion output transducer is installed on the annular end cap of shell upper surface through self-contained bearing.