RU2757690C1 - Universal device for manual installation of wheels on motor vehicles - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanical engineering, in particular to universal devices for manual installation of wheels on motor vehicles. The device contains a base, a frame, a lifting mechanism and a holder. The base includes two support corners, middle and rear crossbars, a plate rack. The frame includes a wall, a pressure bar, two pressure belts. The lifting mechanism includes a worm screw, a worm comb, a handle, a casing, two vertically parallel T-shaped carriages. The holder includes an L-shaped stop, two eyelets, a trapezoidal bracket.

EFFECT: increase in work convenience on wheels installation is achieved.

1 cl, 6 dwg

Description

The invention relates to hand-held devices for the repair of wheeled vehicles and can be used for manual installation of wheels on motor vehicles.

One of the problems that arise during the operation of cars is wheel replacement, which requires significant physical effort. This problem is especially acute when installing wheels on cargo motor vehicles, since their mass, as a rule, exceeds the physical capabilities of a person to lift them and install them on the hubs of a motor vehicle.

When reviewing the technical literature, a number of technical solutions related to the specified problems were identified.

A removable device for installing a car wheel is known, containing a steel pin connected by a cardan mechanism to a lever, while the thread on the pin corresponds to the thread of the standard mounting bolt (utility model patent RU 183217, class В60В 29/00, publ. 09/13/2018 , bulletin No. 26).

The main disadvantages of this device are:

the inability to use on cars in which the wheels are fastened on hubs equipped with studs;

the inability to fix the wheel on the hub of the device, screwed into the hole in the hub, to ensure the adjustment of the position of the wheel when installing the standard fixing bolts without the risk of the wheel coming off the back of the stud of the device.

A device for mounting and dismounting pneumatic wheels is known, containing a frame mounted on a base base, with the ability to move in vertical guides of which a carriage is installed, containing movable frames with grippers made in the form of two pins with rollers, and the frames are equipped with screw mechanisms for their transverse movement, the frame is connected with the mechanism of its vertical inclination relative to the base base, and the drives for screws of the screw mechanisms of transverse movement for each frame are made autonomous (patent for invention RU 2038219, class В60В 29/00, publ. 27.06.1995).

The main disadvantages of this device are: the need to use special vehicles to feed the wheel to the vehicle, which excludes the possibility of manual installation of the wheels and requires a significant area of the working area for their installation;

limited possibilities for using the device when mounting wheels of cars, since the dimensions of its mechanisms may not correspond to the small diameters of the wheels of these cars.

Closest to the claimed invention is a device for changing the wheels of a vehicle, containing attachments, including a traverse with mounted on it paired swivel grips for wheels and a drive of the grippers, an L-shaped lever rigidly connected to the traverse and made with holes in the balance regulator for interaction with the hook of the lifting mechanism, and the upper grip mounted on the crosshead above the two lower grips and kinematically connected to the device for pressing wheels rigidly attached to the crosshead and made in the form of hinged levers, one of which is rigidly connected to the crosshead, and a screw with a handle attached to the free end of another lever perpendicular to the latter (patent for invention RU 2019431, class В60В 29/00, В66 С1 / 20, publ. 09.15.1994).

The main disadvantage of this device is the need to use a separate lifting means, which excludes the possibility of manual installation of wheels in places not equipped with such lifting means.

The problem to be solved in the invention is to eliminate these disadvantages by developing a universal design of the device, which makes it possible to install wheels manually on automobile vehicles, in which the wheels are fastened to the hubs both on studs and fastening bolts.

The technical result of the invention is to improve the convenience of performing work on the installation of wheels on automobile vehicles equipped with hubs with different designs of fasteners for the wheels installed on them.

The problem is solved, and the technical result is achieved as a result of the fact that, according to the invention, a universal device for manual installation of wheels on automobile vehicles contains a base, a frame, a lifting mechanism and a holder, the base includes two support angles equipped with rolling wheels, installed parallel to each other , the middle and rear crossbars rigidly connected to them, a plate rack movably fixed on the support corners, the frame includes a wall with two forks rigidly fixed to it, a clamping bar movably attached to the forks, and two clamping belts attached to the wall and clamping bar, the lifting mechanism includes a worm screw, resting with its heel on the middle cross member of the base and movably fixed in its upper part on a yoke fixedly mounted on a lamellar rack, a worm comb, coupled with a worm screw and rigidly fixed on the frame wall, a handle, along by means of a cardan joint connected to the upper end part of the worm screw and movably mounted in a bracket rigidly fixed to the upper end part of the plate rack, a casing attached to the frame wall, two T-shaped carriages vertically arranged parallel to each other, fixedly attached to the rear of the casing and placed in two reciprocal guides, fixedly fixed on a plate rack, the holder includes an L-shaped stop rigidly fixed in the middle part of the rear cross member, two lugs fixedly installed in the middle part of the plate rack at a height from its lower end part, approximately equal to twice the height of Г -shaped stop, trapezoidal bracket, movably installed in the lugs.

The invention is illustrated in FIG. 1-6.

FIG. 1 schematically shows a universal device for manual installation of wheels on automobile vehicles in the initial phase of installing the wheel rim on the hub studs, side sectional view.

FIG. 2 schematically shows a universal device for manual installation of wheels on automobile vehicles in the final phase of installing the wheel rim on the hub studs, side sectional view.

FIG. 3 schematically shows a universal device for manual installation of wheels on automobile vehicles when installing a stud in the hub, a sectional top view.

FIG. 4 shows a universal device for manual installation of wheels on automobile vehicles, rear view.

FIG. 5 schematically shows a universal device for manual installation of wheels on automobile vehicles in the initial phase of installing a fastening bolt into the wheel rim and hub, side sectional view.

FIG. 6 schematically shows a universal device for manual installation of wheels on automobile vehicles in the final phase of installing a fastening bolt in the wheel rim and hub, side sectional view.

FIG. 1-6, the following designations are used:

1 - hairpin;

2 - mounting bolt;

3 - wheel rim;

4 - hub;

5 - worm screw;

6 - worm comb;

7 - heel;

8 - cardan joint;

9 - handle;

10 - plate rack;

11 - clamp;

12 - bracket;

13 - guide;

14 - T-shaped carriage;

15 - casing;

16 - eyelet;

17 - trapezoidal bracket;

18 - L-shaped emphasis;

19 - wall;

20 - pitchfork;

21 - clamping bar;

22 - pressure belt;

23 - support corner;

24 - middle cross member;

25 - rear cross member;

26 - rolling wheel;

27 - axis;

28 - wheel rim mounting hole;

29 - hub mounting hole.

A universal device for manual installation of wheels on automobile vehicles works as follows.

When mounting the base, two support corners 23 are provided with two pairs of rolling wheels 26, placed parallel to each other and rigidly connected to each other by the middle 24 and rear 25 crossbars. On the support corners 23, between the middle 24 and the rear 25 crossbars, on the axes 27, the plate rack 10 is movably fixed.

When mounting the frame, two forks 20 parallel to each other are rigidly attached to the wall 19, at the ends of which the clamping bar 21 is movably fixed, on the sides of which, in its upper part, two clamping belts 22 are installed.

Installation of the lifting mechanism is carried out in the following sequence. The heel 7 of the worm screw 5 is installed on the middle cross-piece 24, in a recess (not shown) made in the center of the middle cross-piece 24. The upper part of the worm screw 5 is movably fixed on the clamp 11, fixedly mounted on the plate rack 10. On the wall 19, the worm comb is rigidly fixed 6, which is mated with the worm screw 5. On the upper end of the worm screw 5, the cardan joint 8 is fixed, to which the handle 9 is attached, movably mounted in the bracket 12, rigidly fixed on the upper end of the plate rack 10. The length of the worm screw 5 is performed based on the condition , at which the height of the wheel lift provides the possibility of mating the centers of the mounting holes 28 of the rim of the wheel 3 with the axes of the counterpins 1 installed on the hub 4 or, when connecting the rim of the wheel 3 to the hub 4 by means of the fastening bolts 2, based on the possibility of mating the centers of the mounting holes of the wheel rim 28, with the centers of the mating mounting holes 29 of the hub 4. Worm a screw 5 with a worm comb 6 is enclosed in a casing 15, which is rigidly attached to the wall 19. To the rear of the casing 15, two T-shaped carriages 14 vertically arranged parallel to each other are fixedly attached, placed in two reciprocal guides 13, which are fixedly fixed on plate rack 10.

When mounting the holder, the L-shaped stop 18 is rigidly fixed in the middle part of the rear cross-member 25, in the middle part of the lamellar stand 10 at a height from its lower end part, approximately equal to the double height of the L-shaped stop 18, two lugs 16 are fixedly installed in which install the trapezoidal bracket 17. In this case, the height of the trapezoidal bracket 17 is taken from the condition that when it is installed in the L-shaped stop 18, the angle of inclination of the plate rack 10 relative to the support corners 23 in the direction opposite to the hub 4 is approximately 80 °.

When installing the wheel, the plate rack 10 is tilted on the axes 27 in the direction opposite to the hub 4, the trapezoidal bracket 17 is turned in the lugs 16 until it engages with the L-shaped stop 18 mounted on the rear cross member 25, the wheel is placed on the forks 20, its position is fixed at with the help of the clamping bar 21 and the clamping belts 22, engaging with their free ends on the wall 19. The device on rolling wheels 26 installed in the support corners 23 is brought to the hub 4 to ensure the position of the axial line passing through the center of the rim of the wheel 3 in the same vertical plane with the axial line of the hub 4. Rotate the handle 9 mounted on the bracket 12, which, through the cardan joint 8, rotates the worm screw 5 on the clamp 11 and the heel 7 resting on the middle cross member 24. As the worm screw 5 rotates, the worm comb 6 mating with it is raised, and through it - a wall 19 with a forks 20, a wheel and a clamping bar 21, as well as a casing 15, the T-shaped carriages of which I move t in the guides 13. The wheel lifting is completed after the centers of the mounting holes of the wheel rim 28 coincide with the axes of the counterpins 1 installed on the hub 4 or, when the rim of the wheel 3 is connected to the hub 4 by means of the fastening bolts 2, after the centers of the mounting holes of the wheel rim 28, coincide with the centers of the corresponding mounting holes of the hub 29. Disengage the trapezoidal bracket 17 from engagement with the L-shaped stop 18, tilt the plate rack 10 to the hub 4 and mount the wheel on the hub 4 by means of fastening nuts (not shown), when making the hub 4 with pins 1, or by means of the fastening bolts 2, when making the hub 4 with the mounting holes of the hub 29.

Thus, as a result of the implementation of the proposed technical solution, an increase in the convenience of performing manual work on installing wheels on automobile vehicles is provided due to the use of a universal design of a device for manual installation of wheels on automobile vehicles, which makes it possible to use it both in garage and road conditions, both on cars and trucks, on vehicles in which the wheels are fastened to the hubs both on studs and fastening bolts.

Claims (1)

A universal device for manual installation of wheels on automobile vehicles, containing a base, a frame, a lifting mechanism and a holder, the base includes two support corners provided with rolling wheels, installed parallel to each other, rigidly connected to them middle and rear crossbars, movably fixed on the support corners plate rack, the frame includes a wall with two forks rigidly fixed to it, a pressure bar movably fixed to the forks, and two pressure belts attached to the wall and a pressure bar, the lifting mechanism includes a worm screw resting with its heel on the middle cross member of the base and movably fixed in its upper part on a yoke fixedly mounted on a lamellar rack, a worm comb mated with a worm screw and rigidly fixed to the frame wall, a handle, by means of a cardan joint, connected to the upper end part of the worm screw and movably mounted in a bracket rigidly fixed to the upper end part of the lamellar rack, a casing attached to the frame wall, two T-shaped carriages located vertically parallel to each other, fixedly attached to the rear of the casing and placed in two reciprocal guides fixed to the lamellar stand, a holder includes an L-shaped stop rigidly fixed in the middle part of the rear cross-member, two lugs fixedly installed in the middle part of the plate rack at a height from its lower end part, approximately equal to the doubled height of the L-shaped stop, a trapezoidal bracket movably mounted in the lugs.

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