Protective structure for hub bolt joint of agricultural vehicle

Abstract

The utility model discloses an agricultural vehicle hub bolt joint protection structure which comprises an inner wheel rim, the inner wheel rim is connected to a rim through a spoke, a bolt hole is formed in the inner wheel rim, a bolt is arranged at the bolt hole, a thread is formed in the side wall of the bolt hole, a protection structure is connected to the side wall of the bolt hole in a threaded mode, and the protection structure comprises a connecting part. The connecting part is cylindrical and is in threaded connection with the side wall of the bolt hole, a fixing part is arranged on the inner side of the connecting part and is connected to the connecting part through a plurality of connecting plates, a protective net is fixedly connected to the side, close to the bolt hole, of each connecting plate, and a limiting part is slidably connected into the fixing part and comprises an embedding part with a hexagonal section; and the sleeving part is clamped with the end part of the bolt after sliding. The protective structures are additionally arranged at the bolt holes, on one hand, the dustproof and mud-proof effects are achieved, the connection positions of the bolts are protected, on the other hand, the protective structures further limit the bolts, connection of the bolts is more stable, and the anti-loosening performance of the bolts is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural vehicle wheel hubs, in particular to a protective structure for a bolt connection of an agricultural vehicle wheel hub. Background Art

[0002] The connection between the wheel hub and the drive shaft can be achieved by bolting. Common agricultural vehicle wheel rollers are connected to their drive shafts using only multiple bolts for fastening. However, agricultural vehicles are often used in dusty environments, so a single bolt fastening point will have dust adhesion, which will affect the bolt connection. At the same time, agricultural vehicles also experience vibrations when working, which will affect the stability of the bolt connection. Therefore, a protective structure needs to be designed to ensure the stability of the bolt connection between the wheel hub and the drive shaft. Utility Model Content

[0003] The purpose of the utility model is to provide a structure with better protection effect for the bolt connection between the wheel hub and the transmission shaft of an agricultural vehicle in view of the deficiencies existing in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a protective structure for the bolt connection of an agricultural wheel hub, which adopts the following technical solutions:

[0005] A protective structure for the bolt connection of an agricultural wheel hub comprises an inner wheel rim, which is connected to the rim through spokes, the inner wheel rim is provided with bolt holes, and bolts are arranged at the bolt holes. The invention is characterized in that: a thread is arranged on the side wall of the bolt hole, and a protective structure is screwed thereon. The protective structure comprises a connecting portion, which is cylindrical and screwed thereon to the side wall of the bolt hole, a fixing portion is arranged on the inner side of the connecting portion, and the fixing portion is connected to the connecting portion through a plurality of connecting plates, a protective net is fixedly connected to a side of the connecting plate close to the bolt hole, a limiting portion is slidably connected thereto in the fixing portion, and the limiting portion comprises an embedded portion with a hexagonal cross-section, which is engaged with the end of the bolt after sliding.

[0006] A further improvement of the protective structure of the bolt connection of an agricultural wheel hub of the utility model is that a through notch is provided in the middle of the fixing part, the cross section of the notch is hexagonal, and the limiting part is clamped in the notch.

[0007] The further improvement of the protective structure of the bolt connection of the agricultural wheel hub of the utility model lies in that elastic pads are arranged on the side walls of the sleeve-embedded part and the notch.

[0008] A further improvement of the protective structure of the bolt connection of an agricultural wheel hub of the utility model lies in that the fixing part protrudes from the connecting plate and the end surface of the connecting part.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model adds a protective structure to the bolt hole, which, on the one hand, plays a role in preventing dust and mud and realizing protection of the bolt connection; on the other hand, the protective structure further limits the bolt, making the bolt connection more stable and ensuring its anti-loosening performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] In the figure: 1 bolt hole, 2 bolts, 3 connecting part, 4 connecting plate, 5 fixing part, 6 limiting part, 7 embedding part, 8 inner wheel rim, 9 protective net. DETAILED DESCRIPTION

[0013] 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.

[0014] like Figure 1 As shown, a protective structure for the bolt connection of an agricultural wheel hub includes an inner wheel 8, which is connected to the rim through a spoke, and a bolt hole 1 is provided on the inner wheel rim, and a bolt 2 is provided at the bolt hole. The above structure is a structure for connecting an existing agricultural wheel hub to a transmission shaft. Furthermore, a thread is provided on the side wall of the bolt hole, and a protective structure is screwed thereon. The protective structure includes a connecting portion 3, which is cylindrical and screwed to the side wall of the bolt hole, and a fixing portion 5 is provided on the inner side of the connecting portion. The fixing portion is connected to the connecting portion through a plurality of connecting plates 4, and the plurality of connecting plates are arranged circumferentially. A protective net 9 is fixedly connected to one side of the connecting plate close to the bolt hole, and a limiting portion 6 is slidably connected inside the fixing portion. The limiting portion includes a sleeve-embedded portion 7 with a hexagonal cross section, and the sleeve-embedded portion is locked with the end of the bolt after sliding.

[0015] Furthermore, a through notch is provided in the middle of the fixing part, and the notch cross section is hexagonal, and the limiting part is inserted into the notch. Elastic pads are provided on the side walls of the sleeve part and the notch to ensure the stability of the bolt limit. A hook can also be provided on the limiting part, so as to facilitate the external tool to realize the sliding of the limiting part relative to the fixing part.

[0016] Furthermore, the fixing part protrudes from the end surface of the connecting plate and the connecting part. The setting of the fixing part is convenient for rotation using an external tool.

[0017] The working principle of the utility model is as follows: after the bolts are used to connect the wheel hub and the transmission shaft, there is still a gap between the bolts and the bolt holes, where dust is easily introduced and affects the connection of the bolts. Furthermore, after the protective structure is installed, the protective net will provide dust and mud protection to protect the connection. On the other hand, after the connecting part is connected to the side wall of the bolt hole, the limiting part is pushed so that the embedded part is stuck with the end of the bolt, and the two are relatively limited, which further enhances the connection stability of the bolt.

[0018] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A protective structure for a bolt connection of an agricultural wheel hub, comprising an inner wheel ring, the inner wheel ring being connected to a rim through a spoke, a bolt hole being provided on the inner wheel ring, and a bolt being provided at the bolt hole, characterized in that: The side wall of the bolt hole is provided with a thread and is screwed with a protective structure. The protective structure includes a connecting part, which is cylindrical and screwed on the side wall of the bolt hole. A fixing part is provided on the inner side of the connecting part, and the fixing part is connected to the connecting part through a plurality of connecting plates. A protective net is fixedly connected to the side of the connecting plate close to the bolt hole. A limiting part is slidably connected inside the fixing part. The limiting part includes an embedded part with a hexagonal cross-section, which is engaged with the end of the bolt after sliding.

2. The protective structure for the bolt connection of an agricultural vehicle wheel hub according to claim 1, characterized in that: A through notch is provided in the middle of the fixing portion, the cross section of the notch is hexagonal, and the limiting portion is inserted into the notch.

3. The protective structure for the bolt connection of an agricultural vehicle wheel hub according to claim 2, characterized in that: The embedding part and the notch are both provided with elastic pads on their side walls.

4. The protective structure for the bolt connection of an agricultural vehicle wheel hub according to claim 3, characterized in that: The fixing portion protrudes from the connecting plate and the end surface of the connecting portion.

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