CN218986231U - Auxiliary locking device for locking hub on tyre dismounting machine and dismounting machine - Google Patents

Abstract

The utility model discloses an auxiliary locking device for locking a hub on a tire assembling and disassembling machine, which comprises a flange plate arranged at the end part of a main shaft, wherein a groove is formed in the contact surface of the flange plate and the hub, and after the groove is aligned with a screw hole of the hub, the circumferential locking is realized by inserting a fixing pin. According to the utility model, through adding circumferential fixation, the hub and the flange plate can be locked in the axial direction, and can be locked in the circumferential direction, so that the firmness is increased, the slipping problem is solved, and the tire dismounting precision and the tire dismounting efficiency are improved; the utility model can adapt to hubs with screw holes in different shapes and positions, and has strong adaptability and simple and convenient operation.

Description

Auxiliary locking device for locking hub on tyre dismounting machine and dismounting machine

Technical Field

The utility model relates to a locking device for locking a hub on a tire dismounting machine, in particular to an auxiliary locking device, and belongs to the technical field of tire maintenance mechanical devices.

Background

It is well known that: the wheel of the vehicle consists of a wheel hub and a tire arranged on the wheel hub, wherein the wheel hub is also provided with a plurality of screw holes near the periphery of the central hole for locking tire screws therein, thereby fixing the wheel on the chassis of the vehicle so as to realize the connection of the wheel and the vehicle body.

In order to remove the tire from the hub or to insert the tire into the hub, it is necessary for the hub to be fixed to the spindle of the tire changer in order to rotate the same, i.e. the end of the spindle has a flange for receiving the tire, against which flange the hub of the tire rests, and the hub is locked to the spindle by inserting locking heads in the central bore of the hub and in the receiving end of the spindle.

However, the locking force provided by the locking head is concentrated in the axial direction of the main shaft, when the main shaft drives the hub to rotate, and the locking force between the flange plate and the hub cannot meet the force requirement, the problem that the hub cannot keep synchronization with the rotation of the flange plate is very easy to occur, namely, the hub easily generates a circumferential slipping phenomenon in the rotation process, and the detachment operation of the tire is further influenced.

How to overcome the slipping problem and realize the reinforced locking becomes a major problem to be solved in the utility model.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model mainly provides an auxiliary locking device for locking the hub on the tire dismounting machine, which prevents the circumferential slipping phenomenon of the tire dismounting machine in the working process and ensures the efficiency and success rate of tire dismounting.

In order to achieve the above purpose, the technical scheme adopted by the utility model comprises the following steps:

a supplementary locking device for with wheel hub locking on tire dismouting machine, including the ring flange that sets up at the main shaft tip, open on the face of ring flange and wheel hub contact has the groove, and foretell groove and wheel hub's screw hole counterpoint after, realize ring flange and wheel hub locking in circumference through the mode of inserting the fixed pin, lock wheel hub on the main shaft promptly through the latch head, form the first locking force along the axis direction, and through inserting the fixed pin in the groove that wheel hub and ring flange counterpoint, then realize ring flange and wheel hub's second locking force at circumferencial direction (circumference), the effectual synchronous motion of main shaft and wheel hub that has guaranteed.

In order to accommodate the difference in the positions of the screw holes of the hubs, the grooves may be formed as grooves extending from the circumference of the flange plate to the center of the circle, such as a waist-shaped groove or a strip-shaped groove. Thus, the screw hole of the hub can be aligned with the groove no matter the screw hole is near the center hole end or near the circumference end.

Then, in order to realize the alignment of screw hole and groove fast, the groove can be provided with a plurality of, encircle and arrange in the face of ring flange and wheel hub contact, more preferred selection then the face that the ring flange contacted with the wheel hub is then evenly distributed to the groove, and the screw hole of wheel hub itself also is provided with a plurality of, only needs to have one screw hole and one of them groove to be counterpointed fast on can realizing circumference locking, of course, the quantity of groove is more, and then the speed of location is also faster.

In the actual operation process, in order to ensure the smooth insertion of the fixing pin, the width of the groove is at least not smaller than the diameter of the fixing pin, and the fixing pin can be smoothly inserted into the screw hole, so that the circumferential locking cannot be influenced no matter whether the diameter of the screw hole is larger than or smaller than the width of the groove.

Of course, in order to effectively prevent the falling of the fixing pin and to ensure the locking strength of the fixing pin, the fixing pin is designed as a metal piece, and the insertion end thereof is designed as a magnet end, so that the insertion end of the fixing pin can be smoothly adsorbed on the flange in the actual use process.

The utility model also provides a tyre disassembling and assembling machine, wherein the auxiliary locking device is arranged on the main shaft of the tyre disassembling and assembling machine.

Compared with the prior art, the utility model has the following advantages: according to the utility model, through adding circumferential fixation, the hub and the flange plate can be locked in the axial direction, and can be locked in the circumferential direction, so that the firmness is increased, the slipping problem is solved, and the tire dismounting precision and the tire dismounting efficiency are improved; the utility model can adapt to hubs with screw holes in different shapes and positions, and has strong adaptability and simple and convenient operation.

Drawings

FIG. 1 is a schematic side view of a tire mounted on a spindle of a tire changer according to one embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

fig. 3 is a schematic structural view of a fixing pin according to the present utility model.

The main reference numerals in the figures are as follows:

1. tire with a tire body

2. Hub

21. Screw hole

3. Flange plate

31. Groove(s)

32. Fixing pin

321. Magnet end

4. A locking head.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in use of the inventive product are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

FIG. 1 is a schematic side view of a tire mounted on a spindle of a tire changer according to one embodiment of the present utility model.

As shown in fig. 1: the wheel comprises a tyre 1 and a hub 2, since both the tyre 1 is detached from the hub 2 and the tyre 1 is mounted on the hub 2, the hub needs to be fixed on the spindle of the tyre changer, and as mentioned in the background art, the end of the spindle of the tyre changer is provided with a flange plate for receiving the hub 2, while fig. 1 is a side view, the fixing state of the hub 2 and the flange plate cannot be directly shown, but for a person skilled in the art, the hub 2 is firmly connected with the spindle by receiving the flange plate as a supporting body, which is an obvious technical means and is not repeated herein. As shown in fig. 1, the hub 2 is locked on the main shaft through an external locking head 4 passing through a central hole, and a plurality of screw holes 21 are uniformly formed in the periphery of the central hole of the hub 2.

Fig. 2 is a schematic structural diagram of an embodiment of the present utility model.

As shown in fig. 2: in this embodiment, the groove 31 is a strip-shaped groove extending from the circumference of the flange 3 to the center of the circle, and when the screw holes 21 of different hubs have different positions in the radial direction, the groove 31 can well align with the screw holes 21, so that the adaptability is very good. The circumferential surface of the flange 3 is penetrated for convenience of processing, and of course, the circumferential surface of the flange 3 may be closed, and the shape of the groove may be other shapes, such as a waist-shaped groove. In order to facilitate the insertion of the fixing pin 32, the grooves 31 have a certain depth and width, and also adopt an even distribution mode, and nine grooves are formed on the section contacting with the hub 2, so that the alignment of the screw holes 21 and the grooves 31 can be rapidly realized.

Fig. 3 is a schematic structural view of a fixing pin according to the present utility model.

As shown in fig. 3: in order to effectively prevent the fixing pin 32 from falling off and to ensure the locking strength of the fixing pin 32, the fixing pin 32 is designed as a metal piece and the insertion end thereof is designed as the magnet end 321, so that the insertion end of the fixing pin 32 can be smoothly adsorbed on the flange 3 in the actual use process.

The specific auxiliary locking process comprises the following steps:

firstly, the hub 2 is sleeved on the main shaft and approaches the flange 3, then the hub 2 is manually rotated to align the screw hole 21 of the hub 2 with the groove 31 of the flange 3 (only one of them is needed), the fixing pin 32 is inserted, then the hub 2 is locked on the flange 3 in the axial direction by the locking head 4, and finally the fixing pin 32 is pressed inwards by force to complete the locking. At this time, locking is performed in both the axial direction and the circumferential direction, that is, a first locking force in the axial direction and a second locking force in the circumferential direction (circumferential direction) are formed, and occurrence of the "slipping" phenomenon can be completely prevented.

The auxiliary locking device is applied to a tire dismounting machine, can effectively improve the tire dismounting precision and the tire dismounting efficiency, and greatly reduces the failure rate of tire dismounting.

The foregoing has outlined rather broadly the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the utility model, and that various changes and modifications may be effected therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (9)

1. The auxiliary locking device for locking the hub on the tire assembling and disassembling machine comprises a flange plate arranged at the end part of the main shaft, and is characterized in that a groove is formed in the surface, which is contacted with the hub, of the flange plate, and after the groove is aligned with a screw hole of the hub, the circumferential locking is realized by inserting a fixing pin.

2. An auxiliary locking device for locking a hub to a tire changer as in claim 1 wherein the groove is a groove extending from the circumference of the flange toward the center of the circle.

3. An auxiliary locking device for locking a hub to a tyre changing machine according to claim 1 or 2, wherein the groove is a waist-shaped groove or a strip-shaped groove extending from the circumference of the flange plate to the centre of the circle.

4. An auxiliary locking device for locking a hub on a tyre changing machine according to claim 1 or 2, wherein a plurality of grooves are provided, circumferentially distributed on the face of the flange in contact with the hub.

5. The auxiliary locking device for locking a hub to a tire changer as in claim 4 wherein the grooves are uniformly distributed on the surface of the flange that contacts the hub.

6. An auxiliary locking device for locking a hub onto a tyre changing machine according to claim 1 or 2, wherein the slot width is at least not smaller than the diameter of the fixing pin.

7. An auxiliary locking device for locking a hub on a tyre changing machine according to claim 1 or 2, wherein the fixing pin is a metal piece.

8. The auxiliary locking device for locking a hub to a tire changer as in claim 7, wherein the insertion end of the fixing pin is a magnet end.

9. Tyre changing machine provided with an auxiliary locking device according to any one of claims 1-8.

Images