A driving wheel with guiding function for a rubber crawler walking system

Abstract

The invention provides a driving wheel with a guiding function for a rubber crawler walking system, wherein the driving wheel body is composed of several driving wheel assembly block units; each of the driving wheel assembly block units includes a base member and a driving member, and the base member is provided with a connection structure fixed to the spokes, and a support structure that forms a limit with the crawler driving teeth to prevent the driving wheel body from being separated from the crawler; several driving members are installed at intervals on the supporting structure of the above-mentioned base member, and they mesh with the driving teeth on the crawler to realize transmission. The driving wheel structure provided by the invention is cleverly designed, and adopts a combined structure form. Under the condition of the crawler tensioning, the driving wheel can also be replaced, loaded and unloaded or maintained.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber crawler-type vehicle production and manufacturing, and in particular relates to a driving wheel with a guiding function of a rubber crawler walking system. Background Art

[0002] Rubber track systems are mostly used in off-road conditions. They have to cope with harsh terrains such as mud and various types of impacts. In order to keep the drive wheel and the rubber track in a good meshing state, it is necessary to avoid the accumulation of mud and debris in the meshing area of ​​the drive wheel and the rubber track. At the same time, it is necessary to prevent the rubber track and the drive wheel from having a large lateral offset to avoid the track from being separated from the drive wheel. When a component of a rubber track system fails, it needs to be quickly replaced or maintained to restore normal use. However, since the rubber track system needs to keep the rubber track in a tensioned state when it is working, all components or parts are in a gathered or compressed state, making it difficult to perform maintenance and replacement operations. In addition, the drive wheels in common rubber track systems are all round. During the manufacturing process, the material often needs to be processed into a full circle for subsequent processing, which not only causes material waste, but also increases the size of the mold or tooling, reducing the economy of the manufacturing process, and is in urgent need of improvement. Summary of the invention

[0003] In view of this, the invention aims to overcome the defects in the prior art and proposes a driving wheel with a guiding function for a rubber crawler walking system.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A driving wheel with a guiding function for a rubber crawler walking system, wherein the driving wheel body is composed of a plurality of driving wheel assembly block units;

[0006] Each of the driving wheel assembly block units comprises:

[0007] A base member, on which a support structure is provided for forming a limit with the crawler driving teeth to prevent the driving wheel body from being separated from the crawler;

[0008] The driving member is installed at intervals on the supporting structure of the above-mentioned base member, and is engaged with the driving teeth on the crawler to realize transmission.

[0009] Furthermore, the base member and the spokes are of a detachable structure, and a connecting structure for fixing to the spokes is provided on the base member; and in another optional scheme, the base member and the spokes are of an integral structure, and a connecting structure for fixing to the spokes is provided on the base member.

[0010] Furthermore, the base member is in an arc-shaped structure and is provided with a plurality of hollow holes.

[0011] Furthermore, the connection structure is an arc-shaped flange structure, which is provided with a plurality of fixing holes for connecting with the spoke flange.

[0012] Furthermore, a positioning hole is provided on the connecting structure.

[0013] Furthermore, the supporting structure includes side plates on both sides of the base member, and the driving member is arranged axially along the driving wheel body, with both ends of the driving member respectively fixed in the mounting grooves of the corresponding side plates.

[0014] Furthermore, a plurality of vertical plates are arranged between the two side plates, and both ends of the vertical plates are respectively connected to the side plates on the corresponding sides, the bottoms of the vertical plates are connected to the base member, and the tops are connected to the driving member.

[0015] Furthermore, the driving member adopts a pin-type structure, and its total length is greater than the range covered by the track driving teeth. The portion of the driving member that is not in contact with the side plate is meshed with the track driving teeth.

[0016] Furthermore, a gap is left between the side plate and the side wall of the crawler drive tooth.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The driving wheel provided by the invention adopts a modular structure. Under the condition that the track is tensioned, the driving wheel modular block unit that is not meshed with the track can be easily taken out to realize the replacement, loading and unloading or maintenance of the driving wheel modular block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the present invention when applied to a crawler walking system;

[0021] Figure 2 A schematic diagram of the structure created by the present invention;

[0022] Figure 3 A schematic diagram of the local structure of the invention when it is applied to a crawler walking system;

[0023] Figure 4 A schematic diagram of the matching part between the side plate and the driving gear in the embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the driving wheel assembly block unit in the invention;

[0025] Figure 6A schematic diagram of the driving gear and the supporting structure part in the embodiment of the present invention;

[0026] Figure 7 for Figure 6 A magnified view of the structure at center C.

[0027] Description of reference numerals:

[0028] 1-driving wheel assembly block unit; 2-base member; 3-spoke; 4-connecting structure; 5-supporting structure; 6-driving member; 7-driving tooth; 8-hollow hole; 9-fixing hole; 10-positioning hole; 11-side plate; 12-vertical plate; 13-cantilever part; 14-groove; 15-side plate mating surface; 16-driving tooth mating surface; 17-track; 18-bolt; 19-hole. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] A driving wheel with a guiding function for a rubber crawler walking system, such as Figures 1 to 5 As shown, the driving wheel body is composed of several driving wheel assembly block units 1; the driving wheel assembly block units are coaxially positioned through the stoppers on the spokes and fastened together through bolts and other connecting parts on the spoke flange surface;

[0034] Each driving wheel assembly block unit includes a base member 2 and a driving member 6. In an optional solution, as shown in FIG. Figure 6 , 7 As shown, the base member and the spokes are an integral structure, and the driving wheel is an integral structure at this time. In another optional embodiment, the base member and the spokes are a detachable structure, and a connecting structure 4 for fixing to the spokes 3 is provided on the base member; a connecting structure for fixing to the spokes is provided on the base member; that is, it has a guiding function and can also have a separable structure. A driving wheel designed in this way should also be included in the protection scope of this application.

[0035] At the same time, the base member is also provided with a support structure 5 which forms a limit with the track driving teeth to prevent the driving wheel body from being separated from the track 17;

[0036] The plurality of driving members are installed at intervals on the supporting structure of the base member, and mesh with the driving teeth 7 on the crawler track to transmit the driving torque to realize transmission.

[0037] When replacing, loading and unloading or maintaining the driving wheel, the driving wheel assembly block unit that is not in meshing relationship with the crawler can be taken out by rotating the driving wheel to different positions. The operation is very convenient, efficient and labor-saving. In particular, the above-mentioned assembly and disassembly method can separate the crawler from any driving wheel assembly block, loosen the crawler, and facilitate the loading and unloading and maintenance of other parts of the crawler travel system.

[0038] The above-mentioned connection structure is an arc-shaped flange structure, which is provided with several fixing holes 9 for connecting with the spoke flange. In order to ensure balanced force, the fixing holes are generally arranged at equal intervals. The spokes are provided with several through holes for positioning, and corresponding positioning holes 10 are provided on the connection structure. The accurate positioning of the spokes and the connection structure can be achieved by inserting positioning pins and other positioning parts in the positioning holes. The specific position of the positioning hole is not specifically limited, and it can be opened according to actual needs in conjunction with the spoke structure. It should be pointed out that the use of positioning pins (positioning parts) to tighten the surface of the spoke ensures that a stable matching relationship is formed between the end of the connection structure and the spoke, so that during the movement of the track, the unbalanced force of the split body will not cause problems such as misalignment or uncontrollable torsional deformation at the junction, thereby ensuring that the detachable drive wheel provided by the invention can achieve the performance of an integral drive wheel after assembly.

[0039] The connection structure between the flange of the spoke and the drive assembly block unit is provided with bolts and positioning pins. The bolts 18 are used to achieve connection and fixation, and the positioning pins are used to accurately position multiple drive wheel assembly blocks to ensure that when adjacent drive wheel assembly blocks are connected, the pitch of adjacent drive parts belonging to different drive wheel assembly blocks is the same as the pitch of other drive parts.

[0040] In an optional embodiment, the support structure includes side plates 11 fixed on both sides of the base member, and the driving member is fixed in the mounting grooves of the two side plates along the axial direction of the driving wheel body. A plurality of groups of driving member mounting grooves are correspondingly provided on the two side plates, and each of the driving members is arranged in a corresponding group of mounting grooves along the axial direction, and is cross-armed on the two side plates.

[0041] It should be noted that the support structure (position) may be different for different models or types of rubber tracks, but the role and function achieved are the same. The side plates can ensure that the longitudinal center of the rubber track does not deviate too much, and prevent the track from twisting or deviating under the action of external force, and from being unable to engage or disengage with the drive wheel.

[0042] In this embodiment, as a structural optimization, a plurality of vertical plates 12 can be provided between the two side plates, the two ends of the vertical plates are respectively connected to the side plates on the corresponding sides, the bottom is connected to the base member, and the top is connected to the driving member. To ensure the stability of the overall structure, the vertical plates are arranged at equal intervals along the circumferential direction of the base member.

[0043] The two ends of the vertical plate are respectively connected to the side plates on the corresponding sides, the bottom of the vertical plate is connected to the base member, and the top of the vertical plate is fixed to the driving member. Usually, the vertical plate and each adjacent component are fixed by welding; a groove 14 is provided in the middle of the vertical plate on the side connected to the base member to facilitate the electric welding fixation of the vertical plate and the driving member.

[0044] The outer wall (or inner wall) of the side plate and the side wall of the track drive tooth (for example, the attachment Figure 3 There is a gap between the middle side plate mating surface 15 and the driving tooth mating surface 16. Generally, the outer wall of the side plate is roughly parallel to the surface where the side wall of the rubber track driving tooth is located, and the gap is preferably 0.5-5mm. Figure 6 and 7 As shown, the situation where both sides of the driving tooth cooperate with the inner wall of the side plate (leaving a gap) is also listed. In addition, the outer wall of one side plate and the inner wall of one side plate may cooperate with the side wall of the driving tooth, which should be included in the scope covered by this application.

[0045] In an optional embodiment, the driving member adopts a pin-type structure, and its total length is greater than the range covered by the track driving teeth. The part of the driving member that is not in contact with the side plate (mainly including the cantilever parts 13 of the driving member protruding out of the base member at both ends) is engaged with the track driving teeth. Of course, when the driving teeth are provided in the middle of the track, Figure 3 ,6 As shown in FIG. 7 , the middle portion of the driving member can also mesh with the corresponding driving teeth. When the driving wheel and the crawler track are meshed, mud and debris can be easily squeezed out from the meshing position and fall off from the driving wheel.

[0046] The driving wheel assembly block adopts an open structure, and there is almost no enclosed space when it engages with the track. Usually, the base member is an arc-shaped structure, and a plurality of hollow holes 8 are arranged on the base member, and sufficiently large holes 19 can also be opened on the spokes without affecting the strength. The open structure avoids the accumulation of mud and debris, which can improve the engagement efficiency and reduce the risk of tooth jumping.

[0047] It should be pointed out that the total length of the driving member on the driving wheel exceeds the range covered by the width of the track driving teeth, and the exceeding length is greater than the gap between the outer wall (or inner wall) of the side plate and the side surface of the driving teeth, which effectively ensures that when the rubber track is slightly offset along the axis of the driving wheel, the driving member can still fully engage with the driving teeth, with high stability and no risk of the track itself falling off.

[0048] The driving wheel provided by the invention can adopt a modular structure. When the track is tensioned, the driving wheel assembly block unit that is not in meshing relationship with the track can be easily taken out to realize the replacement, loading and unloading or maintenance of the driving wheel assembly block.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A driving wheel with a guiding function for a rubber crawler walking system, characterized in that: The driving wheel body is formed by splicing at least one driving wheel assembly block unit; The driving wheel assembly block units all include: A base member, on which a support structure is provided for forming a limit with the crawler driving teeth to prevent the driving wheel body from being separated from the crawler; A driving member is installed at intervals on the supporting structure of the base member, and meshes with the driving teeth on the crawler to achieve transmission; The supporting structure includes side plates on both sides of the base member, and the driving member is arranged along the axial direction of the driving wheel body, and its two ends are respectively fixed in the mounting grooves of the corresponding side plates; a number of vertical plates are arranged between the two side plates, and the two ends of the vertical plates are respectively connected to the side plates on the corresponding sides, and the bottom is connected to the base member, and the top is connected to the driving member; a groove is opened in the middle of the vertical plate which is different from the side connected to the base member; a gap is left between the side plate and the side wall of the track driving tooth; the driving member adopts a pin-type structure, and its total length is greater than the range covered by the track driving teeth. The part of the driving member that is not in contact with the side plate is meshed with the track driving teeth. When the driving wheel and the track are meshed, mud and debris are squeezed out from the meshing position and fall off the driving wheel; the base member and the spoke are a detachable structure, and a connecting structure for fixing to the spoke is provided on the base member; the base member is an arc-shaped structure, and a number of hollow holes are provided on it.

2. The driving wheel with guiding function of the rubber crawler walking system according to claim 1 is characterized in that: The base member and the spoke are an integrated structure.

3. The driving wheel with guiding function of the rubber crawler walking system according to claim 1 is characterized in that: The connection structure is an arc-shaped flange structure, and is provided with a plurality of fixing holes for connecting with the spoke flange.

4. The driving wheel with guiding function of the rubber crawler walking system according to claim 3 is characterized in that: The connecting structure is provided with a positioning hole.

Images