Rim locking structure

Abstract

The utility model discloses a rim locking structure which comprises an axle and a locking ring, the axle is sequentially sleeved with an outer side rim, a sleeve and an inner side rim from outside to inside, the locking ring is arranged between the outer side rim and the axle in a sleeved mode, and the locking ring, the outer side rim, the sleeve and the inner side rim are sequentially matched in an extrusion mode in the direction from the outer side to the inner side of the axle. A limiting groove is formed in the outer circumferential face of the axle and extends in the axis direction of the axle, a first limiting block is arranged on the inner circumferential face of the sleeve, a second limiting block is arranged on the inner circumferential face of the locking ring, and the first limiting block and the second limiting block are in limiting fit with the limiting groove in the circumferential direction of the axle respectively. According to the utility model, the lock ring, the outer side rim, the sleeve and the inner side rim can be effectively prevented from rotating relative to the axle.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial vehicle rims, in particular to a rim locking structure. Background Art

[0002] The rim is the part of the wheel on the outermost circle where the tire is mounted, commonly known as the wheel rim. For off-road dump trucks and rigid mining trucks, due to the limitations of their own axles, a spokeless rim has been developed. This type of rim is connected to the axle in the following way: There are two rims on the outer cover of the axle, which are supported and separated by a sleeve, and a gland and a lock ring are set at the outer end of the axle to tighten the two rims and the lock ring. Since there is an inclined shoulder at the inner end of the axle, the connection between the inner rim and the axle must be The mating surface is also made into an inclined surface, which is stuck in the shoulder of the shaft so that the rim and the axle can fit tightly. For the sake of symmetry and to facilitate the lock ring to support the rims on both sides and press the lock ring into the outer rim, the mating surface of the outer rim and the lock ring is also made into an inclined surface. The lock ring is clamped between the outer rim and the axle, and the pressure cover is pressed inward. The pressure cover transmits the pressing force to the lock ring, which is then transmitted to the outer rim, sleeve and inner rim in turn through the lock ring, and the inner rim and the outer rim are pressed against the shoulder of the axle.

[0003] This method of locking the rim and the axle has the following problems: when the fasteners of the gland become loose, the friction between the gland and the lock ring, and the friction between the inner rim and the axle will become smaller, and it is easy for the lock ring, the outer rim, the sleeve and the inner rim to rotate relative to the axle at the same time. Once the above-mentioned relative rotation occurs, the valve stem may be broken at the least, and the wheel may fall off at the worst, posing a great safety hazard and risk of property loss. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a rim locking structure to prevent relative rotation between a lock ring, an outer rim, a sleeve and an inner rim and a vehicle axle.

[0005] To achieve the above-mentioned purpose, the utility model provides a rim locking structure, including an axle and a locking ring, the axle is sequentially covered with an outer rim, a sleeve and an inner rim from the outside to the inside, the locking ring is sleeved between the outer rim and the axle, the locking ring, the outer rim, the sleeve and the inner rim are sequentially extruded and fitted along the direction from the outside to the inside of the axle, the outer circumferential surface of the axle is provided with a limiting groove, the limiting groove extends along the axial direction of the axle, the inner circumferential surface of the sleeve is provided with a first limiting block, the inner circumferential surface of the locking ring is provided with a second limiting block, the first limiting block and the second limiting block are respectively matched with the limiting groove along the circumferential limit direction of the axle.

[0006] Furthermore, the outer peripheral surface of the axle is also provided with a valve extension tube slot, the valve extension tube slot extends along the axial direction of the axle, and the limiting groove and the valve extension tube slot are arranged opposite to each other.

[0007] Furthermore, the first limiting block is fixed to the sleeve by welding, and the second limiting block is fixed to the locking ring by welding.

[0008] Furthermore, the first limiting block is provided with at least two first welding through holes, and the second limiting block is provided with at least two second welding through holes.

[0009] Furthermore, the axle is also provided with an inclined shoulder, and the inner circumferential surface of the inner rim is provided with a first slope, and the first slope cooperates with the inclined shoulder.

[0010] Furthermore, the inner circumferential surface of the outer rim is provided with a second slope, and the end of the locking ring is provided with a third slope, and the third slope cooperates with the second slope.

[0011] Furthermore, the inner rim and the outer rim have the same structure and are symmetrically arranged, the inner rim includes a rim body, and the rim body is composed of a rim straight cylinder and a rim oblique cylinder; the rim straight cylinder is provided with a groove, and a locking ring is provided in the groove; the locking ring is connected to a seat ring, and a first retaining ring is provided in the seat ring; a step structure is provided on the top of the rim oblique cylinder, and a second retaining ring is provided in the step structure; the rim straight cylinder is also provided with a valve hole.

[0012] Furthermore, the first slope is provided at one end where the rim straight cylinder is connected to the rim oblique cylinder, and the angle between the first slope and the horizontal direction is 20° to 35°.

[0013] The beneficial effect of the utility model is that when the fasteners of the pressure cover become loose, the first limit block and the second limit block respectively cooperate with the limit groove to effectively prevent the sleeve and the lock ring from rotating relative to the axle. When the sleeve and the lock ring do not rotate relative to each other, circumferential friction forces will exist between the outer rim and the sleeve, and between the outer rim and the lock ring, which effectively prevents the outer rim from rotating relative to the axle. Circumferential friction forces will exist between the inner rim and the axle, and between the inner rim and the sleeve, which effectively prevents the inner rim from rotating relative to the axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 It is an overall cross-sectional view of the rim locking structure of the utility model;

[0016] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0017] Figure 3 It is a structural diagram of the axle in the wheel rim locking structure of the utility model;

[0018] Figure 4 It is a structural diagram of the sleeve in the rim locking structure of the utility model;

[0019] Figure 5 It is a structural diagram of the locking ring in the rim locking structure of the utility model.

[0020] In the figure, 1, inner rim; 2, sleeve; 21, first limit block; 3, outer rim; 4, lock ring; 41, second limit block; 5, axle; 51, limit groove; 52, valve extension tube slot; 53, inclined shaft shoulder. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 -Attached Figure 5 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0022] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] The utility model provides a wheel rim locking structure.

[0027] A rim locking structure comprises an axle 5 and a locking ring 4. The axle 5 is provided with an outer rim 3, a sleeve 2 and an inner rim 1 in sequence from the outside to the inside. The locking ring 4 is sleeved between the outer rim 3 and the axle 5. The locking ring 4, the outer rim 3, the sleeve 2 and the inner rim 1 are sequentially extruded and fitted along the direction from the outside to the inside of the axle 5. A limiting groove 51 is provided on the outer circumferential surface of the axle 5. The limiting groove 51 extends along the axial direction of the axle 5. A first limiting block 21 is provided on the inner circumferential surface of the sleeve 2. A second limiting block 41 is provided on the inner circumferential surface of the locking ring 4. The first limiting block 21 and the second limiting block 41 are respectively limited and fitted with the limiting groove 51 along the circumferential direction of the axle 5.

[0028] In the technical solution proposed in the present application, when the fasteners of the pressure cover (not shown) become loose, the first limit block 21 and the second limit block 41 respectively cooperate with the limit groove 51, which can effectively prevent the sleeve 2 and the lock ring 4 from rotating relative to the axle 5. When the sleeve 2 and the lock ring 4 do not rotate relative to each other, there will be circumferential friction between the outer rim 3 and the sleeve 2, and between the outer rim 3 and the lock ring 4, which effectively prevents the outer rim 3 from rotating relative to the axle 5. There will be circumferential friction between the inner rim 1 and the axle 5, and between the inner rim 1 and the sleeve 2, which effectively prevents the inner rim 1 from rotating relative to the axle 5.

[0029] The outer peripheral surface of the axle 5 is also provided with a valve extension pipe slot 52, which extends along the axial direction of the axle 5, and the limiting groove 51 and the valve extension pipe slot 52 are arranged oppositely. In the specific embodiment, the valve extension pipe slot 52 is a structure provided by the axle 5, and the valve extension pipe slot 52 and the limiting groove 51 have the same shape and size, and both pass through the outer end surface of the axle 5. The limiting groove 51 and the valve extension pipe slot 52 are arranged oppositely so that the weight of the axle 5 is more reasonable when rotating, and the limiting groove 51 passes through the outer end surface of the axle 5, which facilitates the assembly of the first limiting block 21 and the limiting groove 51, and the assembly of the second limiting block 41 and the limiting groove 51.

[0030] The first limiting block 21 is fixed to the sleeve 2 by welding, and the second limiting block 41 is fixed to the locking ring 4 by welding.

[0031] The first limit block 21 is provided with at least two first welding through holes (not shown), and the second limit block 41 is provided with at least two second welding through holes. In a specific embodiment, the first limit block 21 is provided with three first welding through holes, and the second limit block 41 is provided with three second welding through holes. When welding the first limit block 21 and the sleeve 2, welding is performed not only around the first limit block 21, but also in the three first welding through holes, thereby ensuring the welding strength between the first limit block 21 and the sleeve 2. Similarly, when welding the second limit block 41 and the locking ring 4, welding is performed not only around the second limit block 41, but also in the three second welding through holes, thereby ensuring the welding strength between the second limit block 41 and the locking ring 4.

[0032] The axle 5 is also provided with an inclined shoulder 53, and the inner circumference of the inner rim 1 is provided with a first slope (not shown), and the first slope cooperates with the inclined shoulder 53. The inner circumference of the outer rim 3 is provided with a second slope (not shown), and the end of the lock ring 4 is provided with a third slope (not shown), and the third slope cooperates with the second slope. The inclined shoulder 53, the first slope, the second slope and the third slope themselves belong to the scope of the prior art, and the specific reference can be made to the comparative document with the authorization publication number CN114683761B, the background technology part and the attached drawings thereof. Figure 1 This part of the inner cylinder has been introduced in detail and will not be repeated here.

[0033] The inner rim 1 and the outer rim 3 have the same structure and are symmetrically arranged. The inner rim 1 includes a rim body, which is composed of a rim straight cylinder and a rim oblique cylinder. The rim straight cylinder is provided with a groove, and a locking ring is provided in the groove. The locking ring is connected with a seat ring, and a first retaining ring is provided in the seat ring. The top of the rim oblique cylinder is provided with a step structure, and a second retaining ring is provided in the step structure. The rim straight cylinder is also provided with a valve hole. The end where the rim straight cylinder is connected to the rim oblique cylinder is provided with a first slope, and the angle between the first slope and the horizontal direction is 20° to 35°. The structures of the inner rim 1 and the outer rim 3 themselves belong to the scope of the prior art. For details, please refer to the utility model patent with the authorization announcement number CN215153634U and the name of a new type of spokeless engineering car rim. No further description will be given here, and no number will be given to the relevant structures.

[0034] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A rim locking structure, characterized in that: The invention comprises an axle and a locking ring, wherein the axle is provided with an outer rim, a sleeve and an inner rim in sequence from the outside to the inside, the locking ring is sleeved between the outer rim and the axle, the locking ring, the outer rim, the sleeve and the inner rim are sequentially extruded and fitted along the direction from the outside to the inside of the axle, the outer circumferential surface of the axle is provided with a limiting groove, the limiting groove extends along the axial direction of the axle, the inner circumferential surface of the sleeve is provided with a first limiting block, the inner circumferential surface of the locking ring is provided with a second limiting block, the first limiting block and the second limiting block are respectively fitted with the limiting groove along the circumferential limit direction of the axle.

2. The rim locking structure according to claim 1, characterized in that: The outer peripheral surface of the axle is also provided with a valve extension tube slot, and the valve extension tube slot extends along the axial direction of the axle, and the limiting groove and the valve extension tube slot are arranged opposite to each other.

3. The rim locking structure according to claim 1, characterized in that: The first limiting block is fixed to the sleeve by welding, and the second limiting block is fixed to the locking ring by welding.

4. The rim locking structure according to claim 3, characterized in that: The first limiting block is provided with at least two first welding through holes, and the second limiting block is provided with at least two second welding through holes.

5. The rim locking structure according to claim 1, characterized in that: The axle is also provided with an inclined shoulder, and the inner circumferential surface of the inner rim is provided with a first slope, and the first slope cooperates with the inclined shoulder.

6. The rim locking structure according to claim 5, characterized in that: The inner circumferential surface of the outer rim is provided with a second slope, and the end of the locking ring is provided with a third slope, and the third slope cooperates with the second slope.

7. The rim locking structure according to claim 5, characterized in that: The inner rim and the outer rim have the same structure and are symmetrically arranged, the inner rim includes a rim body, and the rim body is composed of a rim straight cylinder and a rim oblique cylinder; a groove is provided on the rim straight cylinder, and a locking ring is provided in the groove; the locking ring is connected with a seat ring, and a first retaining ring is provided in the seat ring; a step structure is provided on the top of the rim oblique cylinder, and a second retaining ring is provided in the step structure; a valve hole is also provided on the rim straight cylinder.

8. The rim locking structure according to claim 7, characterized in that: The first slope is provided at one end where the rim straight cylinder is connected to the rim oblique cylinder, and the angle between the first slope and the horizontal direction is 20° to 35°.

Images