All-terrain wheel hub

Abstract

The utility model discloses an all-terrain vehicle hub which comprises a wheel shaft and a hub body arranged at the end of the wheel shaft, and one end, facing the hub body, of the wheel shaft is fixedly connected with a first fixing flange. The first fixing flange and the second fixing flange are welded to the sides, opposite to the hub body, of the axle respectively, the welding connection mode is firmer, the first fixing flange and the second fixing flange are connected in a locked mode through the screws and the nuts, and torque is transmitted through mutual matching of the hexagonal connectors and the connecting grooves. In order to prevent the nut from loosening, the baffle capable of being axially positioned with the wheel shaft is arranged, and the positioning screw between the wheel shaft and the baffle is also provided with the outer sleeve for preventing loosening, so that the problem that the screw joint is easy to loosen after long-term use is avoided, and the safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to vehicles, in particular to an all-terrain vehicle wheel hub. Background Art

[0002] All-terrain vehicle, also known as beach buggy, is the common name of ATV, also known as "all-terrain four-wheel off-road motorcycle". The characteristic of all-terrain vehicle is that it can travel on any terrain and walk on terrain that ordinary vehicles are difficult to maneuver.

[0003] The wheel hub and frame of existing all-terrain vehicles are usually connected by screws and nuts to form a fixed connection. Since the all-terrain vehicles are not inspected in time during long-term use, the nuts are prone to loosening, which eventually causes the wheel hub to fall off and cause injuries. Therefore, it is necessary to improve the wheel hub connection structure so that the nuts are not easy to fall off. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides an all-terrain wheel hub.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an all-terrain wheel hub, comprising a wheel axle and a wheel hub body arranged at the end of the wheel axle, the wheel axle is fixedly connected to a first fixing flange at one end facing the wheel hub body, the wheel hub body is fixedly connected to a second fixing flange on the side facing the wheel axle, the wheel axle and the first fixing flange, the wheel hub body and the second fixing flange are all fixed by welding, a connecting structure for transmitting torque is arranged on the opposite side and in the center of the second fixing flange and the first fixing flange, the second fixing flange faces a side of the first fixing flange and is fixedly connected to multiple groups of screws at the periphery of the connecting structure, and the inner wall of the first fixing flange is provided with The screw has countersunk holes opposite to each other on the left and right, and one end of the screw away from the second fixing flange extends into the inner wall of the countersunk hole and is locked by a nut. A baffle is provided on the side of the first fixing flange away from the second fixing flange to prevent the nut from moving and loosening. An inner sleeve is fixedly connected to the side of the baffle away from the first fixing flange. An axial positioning structure for fixing the axial position of the baffle on the wheel axle is provided between the inner sleeve and the wheel axle. A stop plate is slidably connected to the outer wall of the wheel axle and located at the end of the inner sleeve away from the first fixing flange. An anti-loosening structure is provided between the stop plate and the inner sleeve to prevent the positioning structure from loosening. A limiting structure for limiting the position is also provided between the stop plate and the wheel axle.

[0006] As a further description of the above technical solution:

[0007] The connection structure includes a connection head and a connection groove, which are respectively arranged on the opposite side of the second fixed flange and the first fixed flange and are opposite to each other. The side projection of the connection head is hexagonal, and the internal size of the connection groove is consistent with the external size of the connection head.

[0008] As a further description of the above technical solution:

[0009] The axial positioning structure includes a positioning groove and multiple groups of positioning screws. The positioning groove is arranged on the outer wall of the wheel axle. The multiple groups of positioning screws are all threadedly connected to the circumferential side wall of the inner sleeve and are equally distributed around the axis of the inner sleeve. One end of the positioning screw facing the inner sleeve passes through the side wall of the inner sleeve and extends into the inner wall of the positioning groove. When the positioning screw is connected to the positioning groove, the baffle is pressed against the nut on the side facing the first fixing flange.

[0010] As a further description of the above technical solution:

[0011] The anti-loosening structure is an outer sleeve, which is fixedly connected to the side of the anti-retraction plate facing the inner sleeve, and the inner side wall of one end of the outer sleeve away from the anti-retraction plate is slidably connected to the outer wall of the inner sleeve.

[0012] As a further description of the above technical solution:

[0013] A spring is arranged between the stop plate and the inner sleeve.

[0014] As a further description of the above technical solution:

[0015] The limiting structure includes a backstop groove and a backstop key. The backstop key is clamped on the circumferential outer wall of the wheel axle. The backstop groove is arranged on the inner wall of the backstop plate and is located on the side of the backstop plate away from the inner sleeve. The outer wall of the backstop key is consistent with the inner wall of the backstop groove.

[0016] As a further description of the above technical solution:

[0017] The inner side wall of the backstop plate is also provided with a through slot which passes through from left to right, and the cross-sectional dimension of the through slot when viewed from the side is larger than the cross-sectional dimension of the backstop key when viewed from the side.

[0018] The utility model has the following beneficial effects:

[0019] Compared with the prior art, the all-terrain wheel hub has a first fixing flange and a second fixing flange welded on the side opposite to the wheel axle and the wheel hub body, and the welding connection is more secure. The first fixing flange and the second fixing flange are locked and connected by multiple sets of screws and nuts, and the torque is transmitted by cooperating with each other through hexagonal connecting heads and connecting grooves. In order to prevent the nuts from loosening, a baffle that can be axially positioned with the wheel axle is provided, and the positioning screws between the wheel axle and the baffle are also provided with an outer sleeve for preventing loosening, thereby avoiding the problem of easy loosening of the screw connection under long-term use and greatly improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an all-terrain vehicle wheel hub proposed by the utility model;

[0021] Figure 2 The utility model provides an all-terrain wheel hub Figure 1 A partial enlarged view of the middle A;

[0022] Figure 3 A partial cross-sectional view of the connection structure of the wheel axle, the first fixing flange and the second fixing flange of an all-terrain wheel hub proposed by the utility model;

[0023] Figure 4 The utility model is a partial cross-sectional view of the internal structure of a backstop plate of an all-terrain wheel hub.

[0024] Legend:

[0025] 1. Axle; 2. Hub body; 3. First fixing flange; 4. Second fixing flange; 5. Baffle; 6. Outer sleeve; 7. Backstop plate; 8. Backstop key; 9. Through slot; 10. Inner sleeve; 11. Positioning screw; 12. Positioning groove; 13. Spring; 14. Connector; 15. Connecting groove; 16. Screw; 17. Nut; 18. Backstop groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figures 1 to 4The utility model provides an all-terrain wheel hub: comprising a wheel axle 1 and a wheel hub body 2 arranged at the end of the wheel axle 1, a first fixing flange 3 is fixedly connected to one end of the wheel axle 1 facing the wheel hub body 2, a second fixing flange 4 is fixedly connected to one side of the wheel hub body 2 facing the wheel axle 1, the wheel axle 1 and the first fixing flange 3, the wheel hub body 2 and the second fixing flange 4 are all fixed by welding, and the connection is more firmly secured by welding;

[0028] like Figure 1 , Figure 2 As shown, in order to connect the first fixing flange 3 and the second fixing flange 4 together, a connection structure for transmitting torque is arranged at the center of the second fixing flange 4 and the first fixing flange 3 on the opposite side. The second fixing flange 4 faces one side of the first fixing flange 3 and is fixedly connected to multiple groups of screws 16 at the periphery of the connection structure. The inner wall of the first fixing flange 3 is provided with countersunk holes opposite to the screws 16 on the left and right. One end of the screw 16 away from the second fixing flange 4 extends into the inner wall of the countersunk hole and is locked by a nut 17. The connection structure includes a connecting head 14, a connecting groove 15, and the connecting head 14 , the connecting grooves 15 are respectively arranged on the opposite sides of the second fixing flange 4 and the first fixing flange 3 and are opposite to each other, the side projection of the connecting head 14 is hexagonal, the inner size of the connecting groove 15 is consistent with the outer size of the connecting head 14, and multiple sets of screws 16 are welded on the side of the second fixing flange 4 facing the first fixing flange 3. When assembling, the hub body 2 equipped with the second fixing flange 4 is moved closer to the first fixing flange 3, and the screws 16 are passed through the countersunk holes and then locked with the nuts 17. Since the inner area of ​​the tire of the all-terrain vehicle is relatively open, it is also very convenient to lock the nuts 17 from the inside;

[0029] like Figure 1 , Figure 2 as well as Figure 3As shown, in order to prevent the nut 17 from loosening and falling off during use, a baffle 5 for preventing the nut 17 from being displaced and loosened is provided on the side of the first fixing flange 3 away from the second fixing flange 4, and an inner sleeve 10 is fixedly connected to the side of the baffle 5 away from the first fixing flange 3. An axial positioning structure for fixing the axial position of the baffle 5 on the axle 1 is provided between the inner sleeve 10 and the axle 1, and the axial positioning structure includes a positioning groove 12 and a plurality of positioning screws 11. The positioning groove 12 is provided on the outer wall of the axle 1, and the plurality of positioning screws 11 are all threadedly connected to the inner sleeve 10. The circumferential side wall is equally distributed in a circle with the axis of the inner sleeve 10 as the center. The end of the positioning screw 11 facing the inner sleeve 10 penetrates the side wall of the inner sleeve 10 and extends into the inner wall of the positioning groove 12. When the positioning screw 11 is connected to the positioning groove 12, the side of the baffle 5 facing the first fixing flange 3 is pressed against the nut 17, and the baffle 5 is tightly attached to the side of the nut 17 facing the baffle 5. The positioning screw 11 is turned to insert the positioning screw 11 into the positioning groove 12, thereby fixing the axial position of the baffle 5, thereby preventing the nut 17 from loosening and displacement;

[0030] like Figure 3 As shown, a stop plate 7 is slidably connected to the outer wall of the axle 1 and located at one end of the inner sleeve 10 away from the first fixing flange 3. An anti-loosening structure for preventing the positioning structure from loosening is arranged between the stop plate 7 and the inner sleeve 10. The anti-loosening structure is an outer sleeve 6. The outer sleeve 6 is fixedly connected to the side of the stop plate 7 facing the inner sleeve 10. The inner side wall of the end of the outer sleeve 6 away from the stop plate 7 is slidably connected to the outer wall of the inner sleeve 10. A spring 13 is arranged between the stop plate 7 and the inner sleeve 10. The outer sleeve 6 is sleeved on the outer wall of the inner sleeve 10, which can prevent the positioning screw 11 from loosening during use and then detaching from the positioning groove 12, and also plays a role in preventing loosening.

[0031] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, in order to maintain the axial position of the outer sleeve 6, a limiting structure for limiting is also provided between the backstop plate 7 and the wheel axle 1, and the limiting structure includes a backstop groove 18 and a backstop key 8. The backstop key 8 is clamped on the circumferential outer wall of the wheel axle 1, and the backstop groove 18 is provided on the inner wall of the backstop plate 7 and is located on the side of the backstop plate 7 away from the inner sleeve 10. The outer wall of the backstop key 8 is consistent with the inner wall of the backstop groove 18. The inner wall of the backstop plate 7 is also provided with a through groove 9 that passes through the left and right. The side cross-sectional size of the through groove 9 is larger than the side cross-sectional size of the backstop key 8. In order to facilitate the installation of the backstop plate 7, the backstop plate 7 can be axially slid on the wheel axle 1 after being aligned with the backstop key 8 through the through groove 9. When the backstop key 8 is clamped with the backstop groove 18, the axial position limit of the backstop plate 7 is maintained in cooperation with the action of the spring 13.

[0032] Working principle: the wheel axle 1 and the first fixing flange 3, the wheel hub body 2 and the second fixing flange 4 are fixed by welding. The welding fixation makes the connection more firm. Multiple sets of screws 16 are welded on the side of the second fixing flange 4 facing the first fixing flange 3. During assembly, the wheel hub body 2 equipped with the second fixing flange 4 is moved closer to the first fixing flange 3, and the screws 16 are passed through the countersunk holes, and then locked with the nuts 17. Since the inner area of ​​the all-terrain vehicle tire is relatively open, it is also very convenient to lock the nuts 17 from the inside. The baffle 5 is tightly attached to the side of the nut 17 facing the baffle 5. The outer sleeve 6 is sleeved on the outer wall of the inner sleeve 10 to prevent the positioning screw 11 from loosening during use and then detaching from the positioning groove 12, which also plays a role in preventing loosening. In order to facilitate the installation of the backstop plate 7, the backstop plate 7 can be aligned with the backstop key 8 through the through groove 9 and then slide axially on the wheel axle 1. When the backstop key 8 is engaged with the backstop groove 18, the axial position limit of the backstop plate 7 is maintained with the action of the spring 13.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An all-terrain vehicle wheel hub, characterized in that: The invention comprises a wheel axle (1) and a wheel hub body (2) arranged at the end of the wheel axle (1); the wheel axle (1) is fixedly connected to a first fixing flange (3) at one end facing the wheel hub body (2); the wheel hub body (2) is fixedly connected to a second fixing flange (4) at one side facing the wheel axle (1); the wheel axle (1) and the first fixing flange (3), the wheel hub body (2) and the second fixing flange (4) are fixed by welding; a connection structure for transmitting torque is arranged at a central position on the opposite side of the second fixing flange (4) and the first fixing flange (3); a plurality of sets of screw rods (16) are fixedly connected to the second fixing flange (4) at one side facing the first fixing flange (3) and at the periphery of the connection structure; the inner wall of the first fixing flange (3) is provided with countersunk holes opposite to the screw rods (16) on the left and right; the screw rods (16) are far away from the second fixing flange (4); and the wheel hub body (2) is fixedly connected to the wheel axle (1) at one end facing the wheel hub body (2); and the wheel hub body (2) is fixedly connected to the wheel axle (1) on one side facing the wheel hub body (2). One end of the second fixing flange (4) extends into the inner wall of the countersunk hole and is locked by a nut (17); a baffle (5) is provided on the side of the first fixing flange (3) away from the second fixing flange (4) for preventing the nut (17) from being displaced and loosened; an inner sleeve (10) is fixedly connected to the side of the baffle (5) away from the first fixing flange (3); an axial positioning structure for fixing the axial position of the baffle (5) on the wheel axle (1) is provided between the inner sleeve (10) and the wheel axle (1); a stop plate (7) is slidably connected to the outer wall of the wheel axle (1) and located at the end of the inner sleeve (10) away from the first fixing flange (3); an anti-loosening structure for preventing the positioning structure from being loosened is provided between the stop plate (7) and the inner sleeve (10); and a limiting structure for limiting position is also provided between the stop plate (7) and the wheel axle (1).

2. The all-terrain vehicle wheel hub according to claim 1, characterized in that: The connection structure comprises a connection head (14) and a connection groove (15); the connection head (14) and the connection groove (15) are respectively arranged on opposite sides of the second fixing flange (4) and the first fixing flange (3) and are in an opposite shape; the connection head (14) is hexagonal in side view projection; and the internal dimensions of the connection groove (15) are consistent with the external dimensions of the connection head (14).

3. The all-terrain vehicle wheel hub according to claim 1, characterized in that: The axial positioning structure comprises a positioning groove (12) and a plurality of positioning screws (11), wherein the positioning groove (12) is arranged on the outer wall of the wheel axle (1), and the plurality of positioning screws (11) are all threadedly connected to the circumferential side wall of the inner sleeve (10) and are equally distributed on the circumference with the axis of the inner sleeve (10) as the center. One end of the positioning screw (11) facing the inner sleeve (10) penetrates the side wall of the inner sleeve (10) and extends into the inner wall of the positioning groove (12). When the positioning screw (11) is connected to the positioning groove (12), the side of the baffle (5) facing the first fixing flange (3) is pressed against the nut (17).

4. The all-terrain vehicle wheel hub according to claim 1, characterized in that: The anti-loosening structure is an outer sleeve (6), which is fixedly connected to the side of the anti-recoil plate (7) facing the inner sleeve (10), and the inner side wall of one end of the outer sleeve (6) away from the anti-recoil plate (7) is slidably connected to the outer wall of the inner sleeve (10).

5. The all-terrain vehicle wheel hub according to claim 4, characterized in that: A spring (13) is provided between the stop plate (7) and the inner sleeve (10).

6. The all-terrain vehicle wheel hub according to claim 1, characterized in that: The limiting structure comprises a stop groove (18) and a stop key (8); the stop key (8) is clamped on the circumferential outer wall of the wheel axle (1); the stop groove (18) is arranged on the inner wall of the stop plate (7) and is located on the side of the stop plate (7) away from the inner sleeve (10); the outer wall of the stop key (8) is consistent with the inner wall of the stop groove (18).

7. The all-terrain vehicle wheel hub according to claim 6, characterized in that: The inner side wall of the backstop plate (7) is also provided with a through slot (9) which passes through from left to right, and the cross-sectional dimension of the through slot (9) in side view is larger than the cross-sectional dimension of the backstop key (8) in side view.

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