CN214352077U - Electric wrench with torque control - Google Patents

Abstract

The utility model discloses a take torque control's electric spanner, include: the sleeve joint is connected in the transmission bin, part of the sleeve joint extends out of the transmission bin, the transmission bin is fixed with the power bin, the heat dissipation bin is fixed with the power bin, and the handle is installed at the bottom of the power bin. The utility model provides a take torque control's electric spanner through setting up the heat dissipation storehouse to solve the problem that current torque control's electric spanner does not have heat radiation structure, this device practicality is strong, simple structure, facilitate promotion.

Description

Electric wrench with torque control

Technical Field

The utility model relates to a spanner field, concretely relates to take torque control's electric spanner.

Background

The wrench is a common mounting and dismounting tool, and is usually made of structural steel made of carbon or alloy materials, and usually an opening or a sleeve hole for clamping a bolt or a nut is formed at one end or two ends of a handle part of the wrench, so that the bolt or the nut can be screwed by applying external force to the handle part along the rotation direction of a thread when the wrench is used. At present, there is also the electronic torque wrench who takes torque control in the market, and the electronic torque wrench who takes torque control is used for usually to the big and higher occasion of screwing up the moment of torsion precision of bolt or nut dismouting moment of torsion, and the electronic torque wrench who takes torque control of the big majority of prior art does not have heat radiation structure. Therefore, it is desirable to design an electric torque wrench to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take torque control's electric spanner through setting up the heat dissipation storehouse in order to improve the current take torque control's of proposing among the above-mentioned background art electric torque spanner does not have heat radiation structure's problem.

In order to achieve the above object, the utility model provides a following technical scheme: an electric wrench with torque control, comprising: muffjoint head, transmission storehouse, power storehouse, handle, heat dissipation storehouse, its characterized in that: the sleeve connector is connected in the transmission bin, and the transmission bin extends out partially, the transmission bin is fixed with one side of the power bin, the heat dissipation bin is fixed with the other side of the power bin, and the handle is installed at the bottom of the power bin.

Preferably, the surface of the sleeve joint is provided with an anti-drop ball.

Preferably, a switch is arranged in the middle of the handle.

Preferably, the power cartridge comprises: the motor is fixed on the inner wall of the power bin, and the speed reducing mechanism is connected with the output end of the motor.

Preferably, the speed reducing mechanism comprises a first gear, a second gear and a third gear, the third gear is fixedly connected with the output end of the motor, the first gear is fixed on the inner wall of the power bin, and the second gear is positioned between the first gear and the third gear and is respectively meshed with the first gear and the third gear.

Preferably, the transmission bin is internally provided with: recess, connecting axle, safety connection spare, spring, driving plate, pressure ball, adjusting bolt, connecting axle fixed connection reduction gears, safety connection spare is fixed with the connecting axle, be equipped with the recess in the safety connection spare, pressure ball, spring are located the recess, and adjusting bolt screw in recess and spring contact.

Preferably, the diameter of the opening of the groove is smaller than the diameter of the pressure ball.

Preferably, the motor is a brushless motor.

Preferably, the heat dissipation bin comprises a fan, a support rod, a micro motor, a communication net, a dustproof net and a fixed rod, the support rod is fixed on the inner wall of the heat dissipation bin, the fixed rod is fixed at the middle section of the support rod, the micro motor is fixed on the fixed rod, the fan is fixed at the output end of the micro motor, the dustproof net is fixed at the outer side of the support rod, and the communication net is fixed at one side of the heat dissipation bin, which is in contact with the power bin.

Preferably, the electric wrench with torque control further includes a torque detection control device, and the torque detection control device includes: the device comprises a microprocessor, a voltage sensor, a current sensor, a power control module, an input module and a display module;

the microprocessor is respectively connected with a voltage sensor, a current sensor, a power control module, an input module, a display module, a motor and a switch, the input module is used for determining a required torque value, the required torque is displayed on the display module, the voltage sensor is connected between a power supply and the microprocessor, the voltage sensor is used for collecting a voltage signal of the power supply, torque-power relation data are stored in the microprocessor, a normally open contact closing signal of the switch is transmitted to the microprocessor, the microprocessor inquires the torque-power relation data according to the required torque to obtain a power value of the motor and drives the power control module, and the motor rotates according to the power value controlled by the power control module; the power control module, the switch, the motor and the current sensor are connected in sequence, and the current sensor is used for collecting working current signals of the motor and transmitting the collected working current signals of the motor to the microprocessor.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of the specific structure of the present invention;

FIG. 3 is a schematic view of the enlarged structure of the part A of the present invention;

FIG. 4 is a schematic view of the front structure of the safety connector of the present invention;

fig. 5 is a schematic structural view of the speed reducing mechanism of the present invention;

fig. 6 is a schematic view of the front structure of the heat dissipation chamber of the present invention;

fig. 7 is a schematic side view of the heat dissipation chamber of the present invention;

fig. 8 is a schematic diagram of a logic structure according to an embodiment of the present invention.

In the figure: 1. a sleeve connector; 2. a torque control bin; 3. a power bin; 4. a handle; 5. a heat dissipation bin; 501. a fan; 502. a support bar; 503. a micro motor; 504. a communicating net; 505. a dust screen; 506. fixing the rod; 6. a speed reduction mechanism; 601. a first gear; 602. a second gear; 603. a third gear; 7. a switch; 8. a motor; 9. a groove; 10. a connecting shaft; 11. a safety connection; 12. a spring; 13. a drive plate; 14. a pressure ball; 15. adjusting the bolt; 16. the ball is prevented from falling off.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the various embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Example 1

Referring to fig. 1, the present invention provides an embodiment: an electric wrench with torque control, comprising: muffjoint 1, transmission storehouse 2, power storehouse 3, handle 4, heat dissipation storehouse 5, muffjoint 1 is connected in transmission storehouse 2, and the part stretches out transmission storehouse 2, transmission storehouse 2 is fixed with 3 one sides in the power storehouse, heat dissipation storehouse 5 is fixed with 3 opposite sides in the power storehouse, handle 4 is installed in 3 bottoms in the power storehouse.

The working principle and the beneficial effects of the technical scheme are as follows: during the use, the user holds handle 4, and power storehouse output power through transmission storehouse 2, and power action realizes moment of torsion output on muffjoint head 1, and the heat dissipation storehouse 5 that 3 tails in power storehouse set up can dispel the heat to the motor in the course of the work simultaneously, fine protection the motor, guaranteed this utility model's life.

Example 2

Referring to fig. 2, on the basis of embodiment 1, the surface of the sleeve connector 1 is provided with an anti-drop ball 16.

The working principle and the beneficial effects of the technical scheme are as follows: will the utility model discloses an output design is muffjoint head 1 to be provided with anticreep ball 16, conveniently change standard sleeve at any time when using, solve in-service use, to the fastening of different bolts.

Example 3

Referring to fig. 2, on the basis of embodiment 1, a switch (power switch) 7 is located at a middle position of the handle 4.

The working principle and the beneficial effects of the technical scheme are as follows: the switch 7 is arranged on the handle, when the sleeve is nested with the bolt, the switch 7 is pressed down, the equipment starts to work, and the device is very convenient to operate when in use.

Example 4

Referring to fig. 2, on the basis of embodiment 1, the power bin 3 includes: motor 8 and reduction gears 6, motor 8 is fixed in 3 inner walls in power storehouse, reduction gears 6 is connected with the 8 output of motor.

The working principle and the beneficial effects of the technical scheme are as follows: during the use, the switch on, press the switch, motor 8 circular telegram begins to rotate, and reduction gears 6 is connected to motor 8's output and is slowed down, makes the guarantee for this utility model's output torque is stable.

Example 5

Referring to fig. 5, based on embodiment 1, the speed reducing mechanism 6 includes a first gear 601, a second gear 602, and a third gear 603, the third gear 603 is fixedly connected to an output end of the motor 8, the first gear 601 is fixed to an inner wall of the power compartment 3, and the second gear 602 is located between the first gear 601 and the third gear 603 and is engaged with the first gear 601 and the third gear 603, respectively.

The working principle and the beneficial effects of the technical scheme are as follows: during the use, third gear 603 is rotatory at the same rotational speed with motor 8, and first gear 601 is fixed in the 3 inner walls in power storehouse, and second gear 602 revolves around third gear 603 center between first gear 601, third gear 603, and reduction gears 6 forms one-level planetary gear reducer through mutually supporting of first gear 601, second gear 602, third gear 603 and decelerates motor 8, increases the torque here simultaneously, guarantees that this utility model's output is stable, increases this utility model's practicality.

Example 6

Referring to fig. 2-4, on the basis of embodiment 1, the transmission chamber 2 is provided with: recess 9, connecting axle 10, safe connecting piece 11, spring 12, driving plate 13, pressure ball 14, adjusting bolt 15, connecting axle 10 fixed connection reduction gears 6, safe connecting piece 11 is fixed with connecting axle 10, be equipped with recess 9 in the safe connecting piece 11, pressure ball 14, spring 12 are located recess 9, and 15 screw in recesses 9 of adjusting bolt and the contact of spring 12.

The working principle and the beneficial effects of the technical scheme are as follows: connecting axle 10 is connected to reduction gears 6's output second gear 602, will rotate and transmit to transmission storehouse 2, connecting axle 10 is fixed with safety connection spare 11, safety connection spare 11 is through acting on spring 12, pressure ball 14, the maximum torque that makes driving plate 13 can obtain receives the influence of adjusting bolt 15 compression spring 12 length, with pressure ball 14, spring 12 is located recess 9, limit pressure ball 14 and spring 12's displacement circuit, these set up the steady line of torque transmission, and simultaneously, when control compression spring 12's length guaranteed torque wrench because of other factors go wrong, torque wrench's motor can not surpass the maximum output limit, the security of the utility model has been guaranteed.

Example 7

Referring to fig. 3, in example 5, the diameter of the opening of the groove 9 is smaller than the diameter of the pressure ball 14.

The working principle and the beneficial effects of the technical scheme are as follows: the diameter of the pressure ball 14 is slightly larger than that of the opening of the groove 9, so that the pressure ball 14 can partially exceed the groove 9 to be matched with the driving plate 13, and the possibility of the pressure ball 14 escaping is avoided.

Example 8

Referring to fig. 2, in embodiment 4, the motor 8 is a brushless motor.

The working principle and the beneficial effects of the technical scheme are as follows: design power take off for brushless motor, greatly reduced the interference to electrical equipment, make this utility model have better stability, it is low to have the noise simultaneously, longe-lived, and the maintenance cost low grade advantage guarantees this utility model has good price/performance ratio advantage.

Example 9

Referring to fig. 6 to 7, based on embodiment 1, the heat dissipation chamber 5 includes a fan 501, a support rod 502, a micro motor 503, a communication net 504, a dust screen 505, and a fixing rod 506, wherein the support rod 502 is fixed on an inner wall of the heat dissipation chamber 5, the fixing rod 506 is fixed on a middle section of the support rod 502, the micro motor 503 is fixed on the fixing rod 506, the fan 501 is fixed on an output end of the micro motor 503, the dust screen 505 is fixed on an outer side of the support rod 502, and the communication net 504 is fixed on a side of the heat dissipation chamber 5 contacting the power chamber 3.

The working principle and the beneficial effects of the technical scheme are as follows: the utility model discloses an at the during operation, can release a large amount of heats when motor 8 output torque, for guaranteeing that the motor can have a suitable operational environment, set up heat dissipation storehouse 5, the heat gets into heat dissipation storehouse 5 through intercommunication net 504, be fixed in micro motor 503 on the dead lever 506 and drive fan 501 rotation, with the heat discharge, dust screen 505 set up and prevented external various pollutions, like the entering of dust etc., the operational environment of motor has been guaranteed, the life of motor has been increased.

Example 10

Referring to fig. 8, in addition to embodiment 1, the present invention further includes a torque detection control device, where the torque detection control device includes: the device comprises a microprocessor, a voltage sensor, a current sensor, a power control module, an input module and a display module;

the microprocessor is respectively connected with the voltage sensor, the current sensor, the power control module, the input module, the display module, the motor and the switch, the microprocessor is respectively connected with the voltage sensor, the power control module, the switch, the current sensor, the display module and the input module, the input module is used for determining a required torque value, the required torque is displayed on the display module, the voltage sensor is connected between the power supply and the microprocessor, the voltage sensor is used for collecting a voltage signal of a power supply, torque-power relation data are stored in the microprocessor, a normally open contact closing signal of the switch is transmitted to the microprocessor, the microprocessor inquires the torque-power relation data according to required torque to obtain a power value of the motor and drives the power control module, and the motor rotates according to the power value controlled by the power control module; the power control module, the switch, the motor and the current sensor are connected in sequence, and the current sensor is used for collecting working current signals of the motor and transmitting the collected working current signals of the motor to the microprocessor.

Wherein, optionally,

the microprocessor may employ STM32F 427I;

the voltage sensor may employ TV 19E;

the current sensor SCT210F 3;

the power control module may employ IM231-L6S1B

The display module and the input module can adopt DOP-B07S411 to touch the display screen;

the above cooperation among the components in the microprocessor, the voltage sensor, the power control module, the switch, the current sensor, the display module and the input module can be referred to CN 106870429, CN 209167547, CN 209658911 and CN 203738690.

The working principle and the beneficial effects of the technical scheme are as follows: switch on, through the required moment of torsion of input module input, input module is with signal transmission to microprocessor, microprocessor is through handling, control telescopic link 6's extension length, meanwhile, pressure sensor sends real-time supervision's pressure signal to microprocessor, realize the feedback, pressure until pressure that pressure sensor monitored is equal with required moment of torsion corresponding pressure, stop, and then display module shows and predetermines moment of torsion isoparametric at present, press down switch 7, motor 8 is rotatory, pressure sensor real-time supervision pressure, when the pressure sudden change of pressure sensor monitoring, microprocessor control motor stop work, torque detection controlling means's setting, the utility model discloses torque output's accuracy and practicality have been ensured, and simultaneously, the intelligence of the utility model has also been increased.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. An electric wrench with torque control, comprising: muffjoint head (1), transmission storehouse (2), power storehouse (3), handle (4), heat dissipation storehouse (5), its characterized in that: muffjoint head (1) is connected in transmission storehouse (2), and part stretches out transmission storehouse (2), transmission storehouse (2) are fixed with power storehouse (3) one side, heat dissipation storehouse (5) are fixed with power storehouse (3), install in power storehouse (3) bottom handle (4).

2. The electric wrench with torque control according to claim 1, characterized in that: the surface of the sleeve connector (1) is provided with an anti-drop ball (16).

3. The electric wrench with torque control according to claim 1, characterized in that: a switch (7) is arranged in the middle of the handle (4).

4. The electric wrench with torque control according to claim 1, characterized in that: the power bin (3) comprises: motor (8) and reduction gears (6), motor (8) are fixed in power storehouse (3) inner wall, reduction gears (6) are connected with motor (8) output.

5. The electric wrench with torque control according to claim 4, wherein: the speed reducing mechanism (6) comprises a first gear (601), a second gear (602) and a third gear (603), the third gear (603) is fixedly connected with the output end of the motor (8), the first gear (601) is fixed on the inner wall of the power bin (3), and the second gear (602) is located between the first gear (601) and the third gear (603) and is meshed with the first gear (601) and the third gear (603) respectively.

6. The electric wrench with torque control according to claim 4, wherein: the transmission bin (2) is internally provided with: recess (9), connecting axle (10), safe connecting piece (11), spring (12), driving plate (13), pressure ball (14), adjusting bolt (15), connecting axle (10) fixed connection reduction gears (6), safe connecting piece (11) are fixed with connecting axle (10), be equipped with recess (9) in safe connecting piece (11), pressure ball (14), spring (12) are located recess (9), and adjusting bolt (15) screw in recess (9) and spring (12) contact.

7. The electric wrench with torque control according to claim 6, wherein: the diameter of the opening of the groove (9) is smaller than that of the pressure ball (14).

8. The electric wrench with torque control according to claim 4, wherein: the motor (8) is a brushless motor.

9. The electric wrench with torque control according to claim 4, wherein: the heat dissipation bin (5) comprises a fan (501), a supporting rod (502), a micro motor (503), a communication net (504), a dust screen (505) and a fixing rod (506), wherein the supporting rod (502) is fixed on the inner wall of the heat dissipation bin (5), the fixing rod (506) is fixed in the middle section of the supporting rod (502), the micro motor (503) is fixed on the fixing rod (506), the fan (501) is fixed at the output end of the micro motor (503), the dust screen (505) is fixed on the outer side of the supporting rod (502), and the communication net (504) is fixed on one side of the contact between the heat dissipation bin (5) and the power bin (3).

10. The electric wrench with torque control according to claim 1, characterized in that:

the electric wrench with torque control further comprises a torque detection control device, and the torque detection control device comprises: the device comprises a microprocessor, a voltage sensor, a current sensor, a power control module, an input module and a display module;

the microprocessor is respectively connected with a voltage sensor, a current sensor, a power control module, an input module, a display module, a motor and a switch, the input module is used for determining a required torque value, the required torque is displayed on the display module, the voltage sensor is connected between a power supply and the microprocessor, the voltage sensor is used for collecting a voltage signal of the power supply, torque-power relation data are stored in the microprocessor, a normally open contact closing signal of the switch is transmitted to the microprocessor, the microprocessor inquires the torque-power relation data according to the required torque to obtain a power value of the motor and drives the power control module, and the motor rotates according to the power value controlled by the power control module; the power control module, the switch, the motor and the current sensor are connected in sequence, and the current sensor is used for collecting working current signals of the motor and transmitting the collected working current signals of the motor to the microprocessor.

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