CN2231983Y - Semi-automatic removing or mounting device for tyre of car - Google Patents

Abstract

The utility model relates to a semi-automatic disassembling and assembling device for car tyres. The utility model is composed of a positioning mechanism, a reversing mechanism, a gear mechanism and a torque limiting mechanism. The utility model is fixed on the screw hole of the driving shaft of a car tire by the positioning mechanism during operating, the angle is adjusted, and then the spline shaft in the utility model is connected with a fixed screw nut or a screw rod of the car tyre by a special disassembling and assembling sleeve barrel for car tyres. The process of disassembling and assembling the tyre can be completed by the self power of cars. The utility model has the advantages of simple structure, small size and portability, reliable function and lower cost.

Description

Motor tire S. A. attaching/detaching apparatus

The utility model relates to a kind of automobile repair instrument, especially a kind of motor tire S. A. attaching/detaching apparatus.

Existing motor tire attaching/detaching apparatus roughly divides three kinds: (1) electric motor type tyre dismounting equipment; (2) Pneumatic impact disassemblerassembler; (3) the manual sleeve of manpower.Form by a motor, a retarder and an output shaft for above-mentioned first kind, more convenient when pulling down tire, but it is bigger when tire is installed owing to power, the tightness of nut or screw rod be difficult for to be grasped, thereby often damages the fastening nut etc. of tire itself, so seldom adopt during fastening tire, so total work efficiency is not high, in addition, owing to relatively need electric power again, therefore be unsuitable for the automobilist and carry with car than heaviness.Above-mentioned second kind of equipment is lighter, utilize the high capacity high-pressure pump to give the equipment air feed, the impeller of drive equipment itself, the Air Valve Control by equipment itself turns to, more easily the dismounting motor tire, but this kind equipment needs to be used as power with high-pressure pump, and the air feed power on most automobiles all is not enough to drive this equipment normal operation, thereby still impossible as the usefulness of bicycle, in addition the device structure complexity, cost is higher, and general driver is difficult for accepting.Though above-mentioned the third manpower sleeve is light easy-to-use, inefficiency has increased the labour intensity of navigating mate again, thereby neither a final desirable tube lifter.

Motor tire is from use habit and security standpoint, front tyre is generally all used new tyre, weight of being born and moment of torsion are all not as the back drive wheel, thereby it is not fragile, and most of load carrying ability of automobile is all born by drive wheel, and the suffered torsion of tire on the drive wheels and friction are all than big many of front-wheel, the automobilist has the custom of using used tire on drive wheel again, thereby the repairing amount of trailing wheel accounts for about 85-90% of repairing total amount in the repairing of motor tire, and this repairing is many in transit, thereby designs the weak point that a kind of new motor tire attaching/detaching apparatus remedies above-mentioned several equipment with regard to necessary.

In order to overcome the shortcoming of above-mentioned several prior aries, it is a kind of simple in structure, easy to use and reliable that the purpose of this utility model is to provide, the portable higher semi-automatic automobile tyre dismounting device of efficient that utilizes the power of automobile own.

For achieving the above object, the technical solution of the utility model is: a kind of semi-automatic automobile tyre dismounting device, by detent mechanism, direction reverser, gear mechanism and limited torque mechanism form, and direction reverser is set in detent mechanism the inside, link to each other with the commutation pin between the two, direction reverser is fixed on the framework of gear mechanism, and limited torque mechanism is set on the left side major axis of a fixed gear in the gear mechanism, links to each other with the load pin between the two.

Above-mentioned detent mechanism is fixedly formed by a flange of a pipe and one end, symmetry has two circular arc slotted holes that are symmetrical in the center of circle to the center of circle on the flange, and the other end of pipe has two circular holes corresponding to long circular hole on the flange that are symmetrical in the center of circle.

Above-mentioned direction reverser is a pipe, and itself and detent mechanism suit end are equipped with the circular hole more than six or six equably.

Above-mentioned gear mechanism comprises mechanism's frame, a fixed gear, a moving gear and a castellated shaft, interlock successively therebetween, its axis is parallel to each other, wherein the line of centers of the pipe of the pipe of the axis of fixed gear and direction reverser and detent mechanism coincides, fixed, coincide between the moving two gear planes of symmetry or parallel, fixed, the wheel shaft card of moving gear is loaded on two side frames of gear framework, the castellated shaft activity is threaded onto on two side frames of gear mechanism frame, wherein the left-hand axis of fixed gear is to stretch out the major axis of institutional framework, castellated shaft stretches out to the institutional framework right side, stretch out the side end one annular arrangement projection is arranged, be with a compression spring on the castellated shaft between the right frame of this projection and gear mechanism, termination, right side, annulus prominence is that the top that can match with the special-purpose dismounting sleeve of motor tire is outer four directions, and leaning on the back is outer six sides' compound termination.

Above-mentioned limited torque mechanism is made up of a pipe and a ripping bar, and the pipe two ends are equipped with two circular holes that are symmetrical in the center of circle respectively, and ripping bar passes across the outer mother rib lateral rotundum of this pipe and tiltedly is against on the ground.

This programme a bit is exactly that the axis of the fixed gear of gear mechanism equals the motor tire axle center tightens the screw line of centers to its wheel disc distance to the distance of the axis of castellated shaft in addition.

Because the utility model is a utility unit based on gear mechanism; thereby it is relatively simple for structure; cost is lower; secondly owing to have the limited torque mechanism of usage load pin in the device; moment of torsion when device just can be controlled dismounting more exactly; can play a very good protection to device proper and motor tire tightening member; besides because this apparatus structure is simple; small volume and less weight; can utilize the power of automobile itself again, thereby can be carried with car by the driver easily, both dismounting tire whenever and wherever possible; can increase work efficiency again, reduce labour intensity.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of fixed mechanism among Fig. 1;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the cutaway view of Fig. 2;

Embodiment, direction reverser is a pipe 4 among Fig. 1, it is set in pipe 2 the insides of detent mechanism, link to each other with commutation pin 3 therebetween, pipe 4 right-hand members are equipped with six circular holes equably, be symmetrical in the center of circle on 2 the left end tube wall and respectively be equipped with a circular hole up and down, 2 right-hand member is welded with a flange 1, circular hole specification on above-mentioned two mechanism's pipes is identical, direction reverser 4 is welded on the framework 5 of gear mechanism, be separately installed with fixed gear 6 in 5, moving gear 7 and castellated shaft 8,6,7 two elements slide mutually with framework 5 and clamp, element 8 slides and is threaded onto on 5, above-mentioned 6,7, the mutual interlock of 8 three element, its axis is parallel to each other, fixed, moving gear 6,7 longitudinal plane of symmetry coincides, be set with a pipe 9 on the outside major axis of fixed gear 6,9 two ends are symmetrical in the center of circle and respectively are equipped with two circular holes, 9 with 6 major axis between link to each other with load pin 10, a crowbar 11,11 oblique tops are crossed on ground in 9 left side, 5 right frame outer 8 on be with the compound termination 14 that there are an annular arrangement projection 13 and an outer four directions and outer six sides in a compression spring 12,12 right sides.

During device work, earlier motor tire is propped up, then the flange on the fixed mechanism of this device is fixed on the axle drive shaft of motor tire with the oval arc circular hole that the jackscrew screw passes on it, install by the annexation handlebar device between the above-mentioned each several part then, by rotating flange and rotating the direction reverser angle, insert the pin that commutates, castellated shaft in the device and the fastening nut on the tire wheel disc are mapped, at last an end of automobile specified dismounting sleeve is fitted on the castellated shaft termination 14, the other end is contained on the tire wheel disc on cooresponding nut or the screw, after all are ready, start a car is hung D Drive respectively or is retreated shelves and change automobile specified dismounting sleeve direction, nut or screw rod on the wheel disc of can tightening or come loose when the dismounting outside or inside tire.When device work, automobile driving axle drives detent mechanism, direction reverser and gear mechanism begin rotation, because fixed gear 6 is slidingly mounted on the framework 5, and link to each other with pipe 9 in the limited torque mechanism with load nail 10 by its left side major axis, be against on the ground and cross in the crowbar on 9 11, thereby fixed gear 6 is motionless, so just force moving gear 7 and castellated shaft 8 around 6 the revolution in again respectively by the opposite sense rotation, thereby device passes to the power of automobile driving axle on the nut or screw of automobile wheel disc by castellated shaft 8 and automobile specified dismounting sleeve, and then dismantles or load onto nut or screw rod.After tearing or adorned a nut or screw rod open; can take out commutation pin 3 direction reverser 4 is changeed an angle; again plug 3; repeat aforesaid operation; just can be successively intact six nuts on the wheel disc or screw rod dismounting; thereby finish the process of dismounting tire; it should be noted that; when this device is used for tightening nuts or screw rod or gear and breaks down; after moment of torsion acquires a certain degree; castellated shaft 8 and moving gear 7 all can stop operating; thereby force gear 6 to begin to rotate, static but pipe 9 in the limited torque mechanism and crowbar 11 are stopped by ground again, thereby will force load pin 10 to be chopped off; so both can tightening nuts or screw rod, can play the effect of protection motor tire tightening member and this device proper again.

Claims (6)

1, a kind of motor tire S. A. attaching/detaching apparatus, it is characterized in that detent mechanism is arranged in the device, direction reverser, gear mechanism and limited torque mechanism, direction reverser is set in detent mechanism the inside, links to each other with the commutation pin between the two, and direction reverser is fixed on the framework of gear mechanism, limited torque mechanism is set on the left side major axis of a fixed gear in the gear mechanism, links to each other with the load pin between the two.

2, attaching/detaching apparatus according to claim 1, it is characterized in that detent mechanism is fixed by a flange of a pipe and one end forms, be symmetrical in the center of circle on the flange and have the slotted hole of two circular arcs, be symmetrical in the center of circle on the tube wall of the pipe other end and have two circular holes corresponding to oval arc circular hole on the flange.

3, attaching/detaching apparatus according to claim 1 is characterized in that direction reverser is a pipe, and itself and detent mechanism suit end are equipped with the circular hole more than six or six equably.

4, attaching/detaching apparatus according to claim 1, it is characterized in that gear mechanism comprises mechanism's frame, a fixed gear, a moving gear and a castellated shaft, interlock successively therebetween, its axis is parallel to each other, wherein the line of centers of the pipe of the pipe of the axis of fixed gear and direction reverser and detent mechanism coincides, fixed, the plane of symmetry of moving gear parallels or overlaps, fixed, the wheel shaft card of moving two gears is loaded on the both sides of gear mechanism framework, the castellated shaft activity is threaded onto on gear mechanism frame two side frames, wherein the left-hand axis of fixed gear is to stretch out the major axis of mechanism's frame, castellated shaft stretches out mechanism frame right side, stretch out the body end one circular circular protrusion is arranged, be with a compression spring between axle circular circular protrusion and the mechanism's frame, prominent termination, Huan Chu right side is one can match with motor tire special use dismounting sleeve, the top is that outer four directions is outer six sides' compound termination by the back.

5, attaching/detaching apparatus according to claim 1 is characterized in that limited torque mechanism is made up of a pipe and a crowbar, and the pipe two ends are equipped with two circular holes that claim in the center of circle respectively, and ripping bar passes the left circles hole deviation and is against on the ground.

6, according to claim 1,2,3,4 or 5 described attaching/detaching apparatus, the fixed gear axle center that it is characterized in that gear mechanism equals the motor tire axle center tightens figure screw line of centers to its wheel disc distance to the distance in castellated shaft axle center.

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