CN202126324U

CN202126324U - Torque force trainer

Info

Publication number: CN202126324U
Application number: CN2011200986402U
Authority: CN
Inventors: 田南平; 候丽娟; 李世文; 张文智
Original assignee: Tianjin University of Technology
Current assignee: Tianjin University of Technology
Priority date: 2011-04-07
Filing date: 2011-04-07
Publication date: 2012-01-25
Anticipated expiration: 2021-04-07

Abstract

The utility model relates to a torque force trainer used for indicating the sizes of pressure and torque applied to a bolt in the process of screwing the bolt. A liquid crystal display, a status indicator lamp, a reset button, a test button, a sample screw and a flange disc are installed on the front surface of a shell body; and a torque transmission mechanism, a pressure transmission mechanism, force sensors, a circuit board, a buzzer and a range conversion switch are installed on the back surface of the shell body. With the adoption of the structure, the sample screw is screwed by a common screw driver in the operation training; the torque transmission mechanism transforms the torque into the pressure and transmits the pressure onto the force sensor I; the pressure transmission mechanism transmits the force onto the force sensor II; and a force signal is converted by the conversion circuit into a corresponding figure to be displayed on the liquid crystal display; the status indicator lamp adopts three colors to indicate whether the torque and the pressure are within the accurate allowable scope; and when the torque and the pressure exceed the limit value, the buzzer buzzes and alarms. The torque force trainer not only can be used for training, but also can be used for testing and assessing, is powered by a 5V direct current power supply, is safe and convenient and is suitable for teaching and training.

Description

The torsion training aids

Affiliated technical field

The utility model relates to a kind of moment of torsion and training aids of pressure when indicating the moment of torsion that when twisting screw screw is applied to use screw-driving always with the torsion training aids of pressure, especially energy measurement M3 to M8.

Background technology

At present, can control the torque screwdriver of twisting screw moment has pointer-type and presetting system, and pointer-type is through being contained in mechanical indicator and the index dial of bottle opener middle part near the handle place, indication currency and maximal value; The then pre-set maximum permissible torque of presetting system, the shank and the port part of bottle opener are skidded when surpassing limit value, thereby reach the purpose of control moment.Two kinds of forms are mechanical type, and only moment of torsion are measured or limited, and do not need applied pressure to measure when twisting screw.Not exerting pressure when twisting screw skidding to occur, or damages " ten " word or " one " word mouth of screw head, or damages the cutting edge part of bottle opener.

Summary of the invention

1. can only indicate the moment of torsion that should apply when twisting screw in order to overcome existing torque screwdriver; And can not indicate the deficiency that also should apply suitable pressure when twisting screw; The utility model provides a kind of torsion training aids; This torsion training aids not only can show the size and the state of moment of torsion when twisting screw, but also can demonstrate size and the state to the screw applied pressure simultaneously.

Technical scheme torsion training aids each zero, parts all are installed on the metal shell, and LCD, status indicator lamp, SR, training/test button, sample screw are housed on the housing front panel; Torque transmission mechanism, pressure transferred structure, force transducer, control circuit board are equipped with in the back side of housing.

Torque transmission mechanism comprise the transition screw supporting, torsion plate, the toggle, the torsion that convert torsion into pressure with different screws lean on pin, produce pretightning force spring, initial bit register pin, be used to detect the force transducer I of moment of torsion.Moment of torsion leans on pin through toggle, the torsion that is connected with torsion plate, converts torsion into pressure and is pressed on the force transducer I.

Pressure transferred structure comprises that transition screw, the torsion plate, the pressure that had not only transmitted torsion but also transmitted pressure lean on pin, regulate the force transducer II of nail, ratio lever, bearing, set screw, detected pressures.Applied pressure leans on pin, adjusting nail, ratio lever, adjustment screw through the pressure that is contained on the torsion plate when twisting screw, transfers the pressure on the force transducer II;

Force transducer I and force transducer II change torsion and pressure into the correspondent voltage signal respectively, after handling through control circuit board, show the size of torque value and force value in real time with digital form on when LCD.

Hummer, tetrad toggle switch are housed on the dedicated control circuit plate, and two of toggle switch are used to set the moment of torsion range ability, and two are used for the set pressure range ability.

Being used to indicate the status indicator lamp of training/test state is Tricolor LED, is respectively green, yellow, red, and green expression pressure is correct, and yellow expression pressure and torsion are all correct, and red expression pressure or torsion surpass limit value.When red light is bright with the tweeting sound of hummer.

3. the beneficial effect of the utility model is: can be when detecting and showing stubborn screw torque; Also can demonstrate the size of applied pressure when twisting screw; Prompting according to status indicator lamp is trained, and can cultivate and form the proper operation method of after-applied torsion of exerting pressure earlier when twisting screw.

Description of drawings

Fig. 1 is the front structural map of the utility model.

Fig. 2 is the reverse side structural map of torsion training aids.

Fig. 3 is the I-I cut-open view of Fig. 1.

Fig. 4 is the electric control theory block diagram.

Fig. 5 is the control circuit schematic diagram.

Among the figure: 1 status indicator lamp, 2 LCDs, 3 SRs, 4 training/test switching buttons, 5 housings, 6 Connection Blocks, 7,12 force transducers; 8 toggles, 9 springs, 10 bearings, 11 spring carrier arms, 13 toggle switchs, 14 circuit boards; 15 hummers, 16 spacer pins, 17 torsion lean on pin, 18 ring flanges, 19 transition screws, 20 sample screws; 21 torsion plates, 22 adjustment screws, 23 ratio levers, 24 lever pivot pins, 25 pressure lean on pin, and 26 regulate nail.

Embodiment

In Fig. 1, Fig. 3, LCD 2, status indicator lamp 1, SR 3; Test button 4, ring flange 18, excessive screw 19, sample screw 20; Torsion plate 21 is installed on the upper surface of housing 5, and the sample screw can be replaced by M3, M4, M5, M6, five kinds of specifications of M8.

Among Fig. 1, Fig. 2, Connection Block 6 is fixed on the housing 5, and force transducer 7 is contained on the Connection Block 6; Torsion leans on pin 17 to be contained on the toggle 8, and toggle 6 links to each other with torsion plate 21; Spring 9 one ends link to each other with spring carrier arm 11 on being fixed on housing 5, and the other end hangs in the aperture on the toggle 8, abuts against on the spacer pin 16 at toggle 8 under the effect of spring force; Bearing 10, force transducer 12 all are fixed on the housing 5; Circuit board 14 is fixed on the back side of housing; Hummer 15, toggle switch 13 are contained on the circuit board 13.

Among Fig. 3, sample screw 20 is contained in the transition screw 19, and transition screw 19 is contained on the torsion plate 21, and torsion plate 21 is contained in the ring flange 18 on the housing 5; The pressure that is loaded on torsion plate 21 lower ends leans on pin 25 to be pressed in and regulates on the nail 26, and an end of the ratio lever 23 on regulating nail 26 and being contained in bearing 10 is connected, and is contained in the set screw 22 of the lever other end, is pressed on the force transducer 12.

Control circuit board 14 among Fig. 2 is connected with

force transducer

7,12 and LCD 2, and circuit board 14 is by general charger for mobile phone power supply.

The structural frames of automatically controlled part is as shown in Figure 4.Integrated circuit is made up of sensor, signal Processing, controller and display part.LOAD CELLS range 5kg; Signals collecting adopts the HX711 integrated circuit; Controller adopts the AT89S52 single-chip microcomputer, carries out the selection of measurement pattern and the control of measuring process with toggle switch and little touch of key-press, and liquid crystal display and two kinds of forms of light emitting diode are adopted in the display part; Warning when hummer is used for operating mistake, physical circuit figure sees Fig. 5.

The course of work of the utility model is following: the pressure that sample screw 20 receives; Through transition screw 19, torsion plate 21, pressure lean on pin 25, regulate nail 26, the ratio on the bearing 10 of being contained in is 1: 2 lever 23, set screw 22, passes to force transducer 12 after pressure is dwindled half.The torsion that sample screw 20 receives then leans on pin 17 through transition screw 19, torsion plate 21, toggle 8, torsion, converts torsion into pressure and is delivered on the force transducer 7.The power that special circuit receives two force transducers converts corresponding torque and pressure into, is presented on the LCD with digital form.Status indicator lamp is with the different conditions of three kinds of color showing pressure, moment of torsion, the hummer warning that when pressure or moment of torsion transfinite, pipes.

Claims

1. torsion training aids; Comprise housing, torque transmission mechanism, pressure transferred structure, sample screw, LCD, status indicator lamp, control knob, force transducer, control circuit, it is characterized in that: LCD, status indicator lamp, SR, test button, sample screw are housed on the housing front panel; Torque transmission mechanism, pressure transferred structure, force transducer, control circuit board are equipped with in the back side of housing.

2. torsion training aids according to claim 1 is characterized in that: torque-transmitting mechanisms comprise the transition screw supporting, torsion plate, the toggle, the torsion that convert torsion into pressure with different screws lean on pin, produce pretightning force spring, initial bit register pin, be used to detect the force transducer I of moment of torsion.

3. torsion training aids according to claim 1 is characterized in that: pressure transferred structure comprises that transition screw, the torsion plate, the pressure that had not only transmitted torsion but also transmitted pressure lean on pin, regulate the force transducer II of nail, ratio lever, bearing, set screw, detected pressures.

4. torsion training aids according to claim 1 is characterized in that: hummer, tetrad toggle switch are housed on the control circuit board, and two of toggle switch are used to set the moment of torsion range ability, and two are used for the set pressure range ability.

5. torsion training aids according to claim 1 is characterized in that: status indicator lamp is a Tricolor LED, is respectively green, yellow, red, when red light is bright with the tweeting sound of hummer; The size that shows moment of torsion and pressure value on the LCD with digital form.