SU1433786A1 - Driver for vehicle wheel nuts - Google Patents

Abstract

The invention relates to a mechanized tool for tightening or unscrewing the nuts of car wheels. The purpose of the invention is to expand the technological capabilities and P () to improve convenience in working out. The wrench includes a housing 4 with prio ioo.M and a drive shaft 8, freely mounted on a cr () H1inter. 19. The output shaft 15 is installed at the end of a double-arm lever 13, mounted) installed on the nlastin. 9. The distance between the axes of the drive shaft 8 and the output shaft 15 is controlled by turning the lever 13. The angular position of the output shaft 15 is crimped by a finger 21, which is inserted into one of the holes of the stopper disk 22. During operation, the rotation is transmitted from the drive shaft 8 to the output shaft. The shaft 15, at the same time, with an increase in the tightening torque .4 deviates from the vertical and, when the required torque is reached, it presses a propeller on the limit switch. 1 hp f- ii.i, 3 ii. i. S

Description

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The invention relates to a mechanized tool for assembling and disassembling threaded connections and can be used for mounting and dismounting automobile wheels during assembly and repair work.

The purpose of the invention is to expand the technological capabilities by working with differently spaced nuts and expanding the range of control of the limiting moment and improving the usability.

FIG. 1 shows a wrench, general view; in fig. 2 is the same, view A in FIG. ; in fig. 3 shows a transmission pattern between drive and output shafts.

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the voyage of the cage orients the grip 16 relative to the wheel nuts 25 and fixes the position of the output shaft 15 in the cage using the rotary lock 17. Then, the output shaft 15 is displaced by the handle 24 towards the wheel 25 and the grip 16 is set on one of the nuts (not shown). ) wheels 25. Turns on the drive, the rotation of which is transmitted through the worm gear to the drive shaft 8 and through the gears 10, 11, 12 and 14 to the output shaft 15, which tightens the nut. As the tightening torque increases, the housing 4, freely suspended from the bracket 19, begins to deviate from the vertical, as the screw to

The wrench for the wheel nuts of the car 15 6, rotating, begins to move along the curtain - contains the carriage I with the uprights 2, on the co-CU of the worm wheel 7. When reaching

required torque tightening protrusion 26 on

They are fixed beam 3, housing 4, in which there is an actuator that includes an electric motor 5, a worm gear in the form of a screw 6, connected by a belt drive to the electric motor 5, and a worm gear 7 mounted on a drive shaft 8 mounted on the end of the drive shaft 8 can be rotated relative to it a yoke made in the form of two plates 9, between which gears 10-12 forming the transmission are mounted, with the gear wheel 10 fixed on the drive shaft 8. On the plates 9 forming the yoke The wheel 12 is pivotally mounted on the two-OQ shoulder arms 13, on one shoulder of which is u: a gear wheel 14 with an output shaft 15, on the end of which a nut head 16 is fixed, and on the other shoulder is a rotary lock 17, under which on plates 9 grooves 18 are made. Two to 35 shoulder arms 13 allow the distance H to be changed between the drive shaft 8 and the output shaft 15.

A bracket 19 is fixed on the beam 3, which can be moved along the height of the pillars by means of adjusting nuts 20. A plate 21 is mounted on the plates 9, and a plate 22 with holes for the pin 21 is fixed on the bracket 19, which fixes the angular position of the turn 4. on one of the limit switches 23, which disables the drive. Thus, the function of the torque limit mechanism is performed by the housing 4 and the limit switch 23 suspended by the drive shaft 8 on the arm 19. Since the value of the torque limit depends on the angle of deflection of the housing 4 from the vertical, it is controlled by moving the limit switch 23 along the rack 2 , as well as change the force response of his contact.

When moving from one nut to another, the angular position of the output shaft 15 is fixed by a pin 21, which is inserted into one of the holes of the locking disk 23.

When unscrewing the nut, the case 4 deviated from the vertical with the drive placed in it creates an additional torque, which allows unscrewing the stuck nuts.

Claims (2)

Invention Formula . A wrench for car wheel nuts containing a cart with struts, a housing, an actuator located therein and a drive shaft mounted on the drive shaft of the yoke, an output shaft with a wrench head, a transmission located in the yoke, a kinematina yoke. On racks 2, the drive and output different height limit switches 23, the position of which can be changed. The housing 4 with the drive placed in it is suspended by the drive shaft 8 by means of rolling bearings (not shown) on the bracket 19. The laps and the torque limit mechanism differs in that it is equipped with a bracket fixed on the racks to expand technological capabilities. and the two-way shaft 15 hinged on the holder has the possibility of an axial lever arm with a lock position on displacement in the gear wheel 14 behind the ru-one shoulder, on the other shoulder of which the output shaft is mounted 24., the holder is installed; The wrench operates as follows with the possibility of rotation with respect to the drive shaft, and the mechanism of the wrench is installed at the wheel 2555 ° of the moment The shadow set is made in the form of a shadow fitting using nuts 20 visually aligned at different heights of the final poles of the pointed end of the drive shaft 8 from the centre switches and hung over the drive rum wheel hub 25, after which the circular shaft on the housing bracket having the voyage of the cage orients the grip 16 relative to the wheel nuts 25 and fixes the position of the output shaft 15 in the cage using the rotary lock 17. Then, the output shaft 15 is displaced by the handle 24 towards the wheel 25 and the grip 16 is set on one of the nuts (not shown). ) wheels 25. Turns on the drive, the rotation of which is transmitted through the worm gear to the drive shaft 8 and through the gears 10, 11, 12 and 14 to the output shaft 15, which tightens the nut. As the tightening torque increases, the housing 4, freely suspended from the bracket 19, begins to deviate from the vertical, as the screw to housing 4 acts on one of the limit switches 23, which will turn off the drive. Thus, the function of the torque limit mechanism is performed by the housing 4 and the limit switch 23 suspended by the drive shaft 8 on the arm 19. Since the value of the torque limit depends on the angle of deflection of the housing 4 from the vertical, it is controlled by moving the limit switch 23 along the rack 2 , as well as change the force response of his contact. When moving from one nut to another, the angular position of the output shaft 15 is fixed by a pin 21, which is inserted into one of the holes of the locking disk 23. When unscrewing the nut, the case 4 deviated from the vertical with the drive placed in it creates an additional torque, which allows unscrewing the stuck nuts. Invention Formula . A wrench for car wheel nuts, containing a cart with struts, a housing, an actuator located in it and a drive shaft mounted on the drive shaft of the yoke, an output shaft with a wrench head, a transmission located in the yoke, kinematals, and a torque limiting mechanism that, in order to expand technological capabilities, it is equipped with a bracket fixed on racks and a double-arm hingedly mounted on the holder with a lock stupid to interact with one of the limit switches. 2. A wrench according to claim 1, characterized in that, in order to increase the convenience of operation. fSf fSSSS S 2 it is provided with a cage mounted with the possibility of axial movement with a finger and a disk with holes for the finger fixed to the bracket. Type A W