A silent meshing track drive wheel structure

Abstract

This utility model discloses a silent meshing track drive wheel structure, including a wheel body and at least one disc. The disc is located on one side of the wheel body and connected to the wheel body, so that the disc has an annular support platform coaxially arranged with the wheel body. At least one support portion is provided on the connection side between the wheel body and the disc. The disc and the support portion are inserted into each other and connected to the wheel body through multiple connectors. The support portion and the multiple connectors are respectively arranged in a ring along the wheel body, and the support portion and the multiple connectors are distributed adjacently along the diameter direction of the wheel body. This utility model provides a support portion on the wheel body. The support portion can provide additional support force on the basis of the connection between the disc and the wheel body to counteract the downward pressure on the disc during use, thereby increasing the connection stability between the disc and the wheel body and increasing the service life of the overall drive wheel structure.

Description

Technical Field

[0001] This utility model relates to the field of drive wheel technology, and in particular to a silent meshing track drive wheel structure. Background Technology

[0002] In existing technologies, different drive wheels are used depending on the structure of the track chain, but the basic principle of the interaction between the drive wheel and the track is meshing drive. For example, in the track drive system described in patent application CN201510288339.0, the inner ring of the track has multiple drive flanges (drive teeth) evenly distributed in a ring. Therefore, the drive wheel used with this track has multiple openings arranged in a ring around its circumference. The distance between each opening matches the spacing of each drive flange. When the drive wheel rotates, the track rolls due to the meshing of the openings and drive flanges. Another example is the track drive system described in patent application CN201510151271.1, where the track has multiple drive grooves arranged in a ring in the center. Each drive groove meshes with a tooth on the drive wheel, so the rotation of the drive wheel also achieves track rolling.

[0003] When the track and drive wheel engage, the drive wheel basically engages with the middle of the track's annular structure (the track width is greater than the drive wheel's thickness), while the drive wheel is usually located at the front and rear of the track drive mechanism. Therefore, during the engagement of the track and drive wheel, the track rolling impacts the drive wheel (due to the lack of support at the track's annular edge). Consequently, noise and vibration are easily generated between the rotation of the drive wheel and the track.

[0004] To solve the above problems, in the prior art, such as the patent with patent application number CN201680068390.3 entitled "Drive sprocket for rubber belt of tracked vehicle", the purpose of silent transmission can be achieved by adding auxiliary support discs on both sides of the drive wheel to support the annular edge of the track.

[0005] In the aforementioned patent, the two discs can be connected to the drive wheel by welding or bolting. When the discs and the drive wheel are connected, the connection position is at or below the bottom of the annular groove. However, the disc is subjected to force at the opening of the annular groove, and the force direction is towards the bottom of the annular groove. This makes the connection position between the discs and the drive wheel prone to cracking, affecting the service life of the entire drive wheel. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a silent meshing track drive wheel structure. A support part is provided on the wheel body. The support part can provide additional support force on the basis of the connection between the disc and the wheel body to counteract the downward pressure on the disc during use, thereby increasing the connection stability between the disc and the wheel body and increasing the service life of the overall drive wheel structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a silent meshing track drive wheel structure, comprising a wheel body and at least one disc, wherein the disc is located on one side of the wheel body and connected to the wheel body, so that the disc has an annular support platform coaxially arranged with the wheel body;

[0008] The wheel body is provided with at least one support on the side where it connects to the disc. The disc is inserted into the support and connected to the wheel body through multiple connectors.

[0009] The support and multiple connectors are arranged in a ring along the wheel body, and the support and multiple connectors are distributed adjacent to each other along the diameter direction of the wheel body.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] Understandably, tracks have various structures. Based on the track structure, the disc and wheel body can have various combinations. As long as the disc has a circular support platform, the disc can rotate synchronously when the wheel body rotates. The radius of the circular support platform is adapted to the circular edge structure of the track, ensuring that the circular support platform can connect with the edge of the track during the engagement of the wheel body and the track, thus supporting the track edge and achieving the purpose of silent drive.

[0012] The support can be a structure formed by multiple support plates arranged in a ring, a ring-shaped enclosure, or a ring-shaped groove. The disc is inserted into the support, and the connection point between the disc and the wheel body must have a recessed or protruding structure adapted to the support to achieve the insertion. Since the annular support platform is close to the circumferential edge of the wheel body, the compressive force on the disc is directed towards the inner side of the wheel body. Therefore, the support and multiple connectors are arranged along the diameter of the wheel body. This allows the support to provide additional support force at the connection point between the support and the disc, in addition to the force exerted by the connectors (bolts, etc.), to counteract the downward pressure on the disc during use, thereby increasing the connection stability between the disc and the wheel body and extending the service life of the overall drive wheel structure.

[0013] Furthermore, the support part is a protruding structure that protrudes outward along the side connecting to the wheel body.

[0014] Furthermore, the support part is a ring-shaped protrusion structure or multiple protrusions arranged in a ring.

[0015] Furthermore, the disk has at least an annular auxiliary support structure fitted onto the outside of the protrusion structure, or

[0016] The disc has multiple slots for inserting the various protrusions.

[0017] Furthermore, the support portion is a recessed structure that is recessed inward along the connecting side of the wheel body.

[0018] Furthermore, the support portion is an annular recessed groove or multiple grooves arranged in a ring.

[0019] Furthermore, the disk has a ring that inserts into a recessed groove, or

[0020] The disc has multiple inserts for engaging the various recesses.

[0021] Furthermore, the annular support platform and the wheel body are spaced apart and form an annular clearance groove.

[0022] Furthermore, multiple connectors are located between the annular clearance groove and the support.

[0023] Furthermore, the disc has a hollow, conical truncated structure with a constricted opening facing the wheel body, and the circumferential sidewall of the disc is provided with multiple weight-reducing through grooves. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a drive wheel and track that cooperates with the present invention;

[0025] Figure 2 for Figure 1 A structural diagram from another perspective;

[0026] Figure 3 This is an exploded view of the structure of this utility model;

[0027] Figure 4 This is a front view of the structure of this utility model;

[0028] Figure 5 for Figure 4 Sectional view along line AA;

[0029] Figure 6 This is a schematic diagram of the structure of the wheel body in this utility model;

[0030] Figure 7 This is a schematic diagram of one structure of the disc in this utility model;

[0031] Figure 8 for Figure 7 A structural diagram from another perspective;

[0032] Figure 9These are schematic diagrams of four different structures of the support portion in this utility model;

[0033] Figure 10 In this utility model and Figure 9 Schematic diagrams of four types of disc structures that coordinate with the supporting parts of the various components.

[0034] In the figure: drive wheel structure 200, wheel body 220, support part 221, protrusion structure 2213, locking protrusion 2211, recessed groove 2214, groove 2212, disc 210, annular support platform 211, connecting plate 213, auxiliary support structure 2123, locking groove 2121, insert ring 2124, insert block 2122, weight reduction through groove 212, annular clearance groove 230, connector 240, connecting screw hole 241, track 100, auxiliary tooth ring 110. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0036] like Figure 1-10 As shown, a silent meshing track drive wheel structure 200 includes a wheel body 220 and at least one disc 210. The disc 210 is located on one side of the wheel body 220 and connected to the wheel body 220, so that the disc 210 has an annular support platform 211 coaxially arranged with the wheel body 220. At least one support portion 221 is provided on the connection side between the wheel body 220 and the disc 210. The disc 210 and the support portion 221 are inserted into each other and connected to the wheel body 220 through a plurality of connectors 240. The support portion 221 and the plurality of connectors 240 are respectively arranged in a ring along the wheel body 220, and the support portion 221 and the plurality of connectors 240 are distributed adjacently along the diameter direction of the wheel body 220.

[0037] Understandably, the track 100 has various structures. Based on the structure of the track 100, the disc 210 and the wheel body 220 can have various combination structures. For example, when the track 100 has the structure described in the existing patent CN201510288339.0, the drive wheel is originally adapted to the track 100 of this structure. The wheel body 220 is a columnar structure with a hollow cylinder. Multiple openings are opened on the side wall of the hollow cylindrical structure, and the openings can cooperate with this type of track 100. Correspondingly, the disc 210 adopts a columnar structure. The disc 210 is attached to the wheel body 220. Then, the circumference of the columnar disc 210 is the annular support platform 211, and the circular radius of the annular support platform 211 is larger than the cylindrical radius of the wheel body 220 to ensure that the annular support platform 211 can support the annular edge of the track 100, and the wheel body 220 can cooperate with the drive teeth in the middle of the track 100. Of course, the track 100 can also adopt the structure described in the existing patent CN201680068390.3. In this case, the wheel body 220 is similar to a gear structure, and the annular center of this type of track 100 also has two auxiliary toothed rings 110 spaced apart. When the disc 210 and the wheel body 220 cooperate, they need to avoid the auxiliary toothed rings 110. Therefore, the structure of the disc 210 is such that the outer side is higher than the inner side, and there is at least a clearance space. Correspondingly, the annular support platform 211 is the structure where the outer side of the disc 210 is located. The overall structure of the disc 210 can be trumpet-shaped, stepped cylindrical, etc., as long as it can support the annular edge of the track 100 on the outside, and the annular support platform 211 and the wheel body 220 form a clearance space, without affecting the use of the auxiliary toothed rings 110.

[0038] It can be seen that regardless of the structure of the track 100, the combination of the wheel body 220 and the disc 210 can be adapted to the track 100 with the corresponding structure, so that the wheel body 220 can drive the track 100 to rotate. As long as the annular support platform 211 of the disc 210 can support the annular edge of the track 100, the disc 210 can rotate synchronously when the wheel body 220 rotates. Moreover, the radius of the annular support platform 211 is adapted to the annular edge structure of the track 100, ensuring that during the meshing process between the wheel body 220 and the track 100, the annular support platform 211 can connect with the edge of the track 100 to support the edge of the track 100, thus achieving the purpose of silent driving.

[0039] like Figure 1 , 2As shown in Figures 3, 4, 5, 7, and 8, in this application, the track 100 has the structure described in the prior art patent CN201680068390.3. Correspondingly, the wheel body 220 is similar to a gear structure, and the disc 210 is a hollow truncated cone structure with a constriction facing the wheel body 220. The truncated cone can be a square pyramid, a truncated cone, or a combination thereof, as long as the circumferential sidewall adjacent to the large end of the disc 210 has a circular support platform 211 structure. In this application, as shown in Figures 3, 4, 5, 7, and 8, the track 100 has the structure described in the prior art patent CN201680068390.3. Correspondingly, the wheel body 220 has a gear-like structure, and the disc 210 has a hollow conical truncated cone structure with a constriction facing the wheel body 220. The conical truncated cone can be a square pyramid, a truncated cone, or a combination thereof, as long as the circumferential sidewall adjacent to the large end of the disc 210 has a circular support platform 211 structure. In this application, as shown in Figures 4, 5, 7, and 8, the track 100 has the structure described in the prior art patent CN201680068390.3. Correspondingly, the wheel body 220 has a gear-like structure, and the disc 210 has a hollow conical truncated cone structure, as long as the circumferential sidewall adjacent to the large end of the disc 210 has a circular support platform 211 structure. Figure 5 , 7 As shown in Figure 8, the disc 210 is a hollow truncated cone structure. The small end of the disc 210 has an outwardly extending annular connecting plate 213. The connecting plate 213 is connected to the wheel body 220. After the disc 210 is connected to the wheel body 220, the annular support platform 211 and the wheel body 220 are spaced apart and form an annular clearance groove 230. The annular clearance groove 230 is used for the movement of each tooth structure on the auxiliary tooth ring 110 on the track 100.

[0040] Since the wheel body 220 mainly mates with the annular center of the track 100, therefore, as Figure 3 , 5 As shown in this application, a disc 210 is provided on each side of the wheel body 220, which can support the two annular edges of the track 100 and further ensure the silent driving effect.

[0041] To ensure that the support portion 221 provides support to the disk 210 along the diameter of the wheel body 220, there can be one or more support portions 221, distributed along the diameter of the wheel body 220. The support portion 221 can be a structure formed by multiple support plates arranged in a ring (the support plates can be simple straight plates, curved plates, etc.), a ring-shaped enclosure structure, or a ring-shaped groove 2212 structure. When the disk 210 is inserted into the support portion 221, the connection point between the disk 210 and the wheel body 220 must have a recessed or protruding structure adapted to the support portion 221 to achieve the insertion of the disk 210 into the support portion 221. The annular support platform 211 is located near the circumference of the wheel body 220. Since the compressive force on the disc 210 is directed towards the inside of the wheel body 220, the support 221 and multiple connectors 240 are arranged along the diameter of the wheel body 220. This allows the support 221 to provide additional support force at the connection point between the support 221 and the disc 210, in addition to the multiple connectors 240 (bolts, etc.) bearing the force. This counteracts the downward pressure on the disc 210 during use, thereby increasing the connection stability between the disc 210 and the wheel body 220 and increasing the service life of the overall drive wheel structure.

[0042] In some embodiments of this application, when the overall thickness of the wheel body 220 is relatively thin, the support part 221 can adopt a protruding structure that protrudes outward along the connecting side of the wheel body 220. The protruding structure can be a circular protruding structure, a square protruding structure, or multiple plate-shaped protruding structures, etc. Then, as long as the disc 210 has a snap-fit ​​structure that cooperates with the outer side of the protruding structure, the support part 221 can provide support force along the force direction of the disc 210, offset the force on each connecting member 240, increase the connection strength between the disc 210 and the wheel body 220, and improve the overall service life of the drive wheel structure 200.

[0043] Specifically, when the support 221 is a protruding structure extending along the wheel body 220, such as... Figure 9 As shown in (1) and (3), the support 221 can also be a ring-shaped protrusion structure 2213 or multiple protrusions 2211 arranged in a ring. The protrusion structure 2213 can be a circular, square or other ring-shaped structure; each protrusion 2211 can be a common straight plate structure, an arc-shaped plate structure, etc. Similarly, the ring structure surrounded by each protrusion 2211 can also be a circular or square ring.

[0044] In accordance with the structure of the support part 221 described above, in order for the disk 210 to be inserted into the support part 221, as follows: Figure 10 As shown in (1) and (3), the disk 210 has at least an annular auxiliary support structure 2123 sleeved on the outside of the protrusion structure 2213, or the disk 210 has multiple slots 2121 for inserting each protrusion 2211.

[0045] When the support part 221 is an annular protrusion structure 2213, the auxiliary support structure 2123 cooperates with the protrusion structure 2213. The auxiliary support structure 2123 can be an annular groove structure opened on the connecting plate 213, and the annular groove structure is engaged with the outer side of the protrusion structure 2213. Alternatively, the auxiliary support structure 2123 can be an annular hole structure, which is the inner side of the connecting plate 213. In this case, the annular hole structure fits perfectly on the outer side of the protrusion structure 2213. Therefore, when the auxiliary support structure 2123 cooperates with the protrusion structure 2213, it can also provide support along the force direction of the disk 210 to provide additional support force to counteract the downward pressure on the disk 210 during use, thereby increasing the connection stability between the disk 210 and the wheel body 220 and increasing the service life of the overall drive wheel structure.

[0046] When the support portion 221 has multiple latching protrusions 2211, each latching groove 2121 is formed on the connecting plate 213, and its distribution structure is the same as that of each latching protrusion 2211, ensuring that each latching groove 2121 can be engaged with each latching protrusion 2211. Alternatively, the latching groove 2121 can also be a latching block provided on the connecting plate 213, with the latching blocks connected along the inner or outer side of the connecting plate 213. The latching groove 2121 can be a through groove structure or a blind groove structure.

[0047] like Figure 5 , 6 As shown in Figures 7 and 8, in one embodiment of this application, the protrusion structure 2213 is a circular ring structure, the connecting plate 213 is a circular annular plate structure, the connecting plate 213 is sleeved on the outside of the protrusion structure 2213, and the inner sidewall structure of the connecting plate 213 is equivalent to the auxiliary support structure 2123.

[0048] In some embodiments of this application, when the thickness of the wheel body 220 is sufficiently large, the support portion 221 can also be a recessed structure that is recessed inward along the connecting side of the wheel body 220. Similarly, the recessed structure can be an annular groove structure or a recessed structure formed by multiple groove structures. The disc 210 is provided with a plug-in structure that can be inserted into the recessed structure, so that after the disc 210 and the support portion 221 are connected, the support portion 221 provides support along the force direction of the disc 210, providing additional support force to counteract the downward pressure on the disc 210 during use, thereby increasing the connection stability between the disc 210 and the wheel body 220 and increasing the service life of the overall drive wheel structure.

[0049] Based on the structural design of the protruding support portion 221, the recessed support portion 221 can also have a similar structure, such as... Figure 9 As shown in (2) and (4), the support portion 221 can be an annular recessed groove 2214 or a plurality of grooves 2212 arranged in a ring. Correspondingly, as Figure 10 As shown in (1) and (3), when the disc 210 is engaged with the recessed groove 2214, the connecting plate 213 of the disc 210 is provided with a protruding insert ring 2124 that is inserted into the recessed groove 2214; when the disc 210 is engaged with each groove 2212, the disc 210 has multiple insert blocks 2122 for inserting into each groove 2212.

[0050] In some embodiments of this application, the connecting member 240 is a connecting bolt, which is used to connect the connecting plate 213 and the wheel body 220. Multiple connecting members 240 are arranged in a ring along the axis of the wheel body 220, and are located between the annular clearance groove 230 and the support portion 221. Figure 3 , 4As shown in Figures 6, 7, and 8, multiple sets of connecting screw holes 241 are provided on the connecting side of the wheel body 220 and the connecting plate 213 respectively. Each connecting bolt passes through the corresponding set of connecting screw holes 241 to realize the connection between the connecting plate 213 and the wheel body 220.

[0051] To facilitate the connection of the connector 240 and further reduce the weight of the disc 210 and the energy consumption of the driver (drive motor) connected to the wheel body 220, this application provides multiple weight-reducing slots 212 on the circumferential sidewall of the disc 210. The weight-reducing slots 212 facilitate the connector 240 to pass through the connecting plate 213 to connect the connecting plate 213 and the wheel body 220, and also reduce the overall weight of the disc 210 by utilizing the hollow structure.

[0052] It is worth noting that the support parts 221 on both sides of the wheel body 220 can adopt the same structure or a combination of different structures. The wheel body 220 is made of steel or cast iron, and the disc 210 is made of aluminum alloy, plastic parts (engineering plastics), lightweight materials (light alloys), etc.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0055] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A silent meshing track drive wheel structure, characterized by: It includes a wheel body (220) and at least one disc (210), the disc (210) being located on one side of the wheel body (220) and connected to the wheel body (220) so that the disc (210) has an annular support platform (211) coaxially arranged with the wheel body (220); At least one support (221) is provided on the connection side between the wheel body (220) and the disc (210). The disc (210) is inserted into the support (221) and connected to the wheel body (220) through multiple connectors (240). The support (221) and multiple connectors (240) are arranged in a ring along the wheel body (220), and the support (221) and multiple connectors (240) are distributed adjacent to each other along the diameter direction of the wheel body (220).

2. The silent mesh track drive wheel structure of claim 1, wherein: The support part (221) is a lateral outward protrusion structure that connects to the wheel body (220).

3. The silent meshing track drive wheel structure according to claim 2, characterized in that: The support part (221) is a ring-shaped protrusion structure (2213) or a plurality of protrusions (2211) arranged in a ring.

4. The silent meshing track drive wheel structure according to claim 3, characterized in that: The disk (210) has at least an annular auxiliary support structure (2123) fitted around the outside of the protrusion structure (2213), or The disc (210) has multiple slots (2121) for inserting the various protrusions (2211).

5. The silent meshing track drive wheel structure according to claim 1, characterized in that: The support part (221) is a recessed structure that is laterally recessed along the wheel body (220).

6. The silent meshing track drive wheel structure according to claim 5, characterized in that: The support part (221) is an annular recessed groove (2214) or a plurality of grooves (2212) arranged in a ring.

7. The silent meshing track drive wheel structure according to claim 6, characterized in that: The disc (210) has a ring (2124) that inserts into a recess (2214), or The disc (210) has a plurality of inserts (2122) for inserting into the recesses (2212).

8. The silent meshing track drive wheel structure according to any one of claims 1-7, characterized in that: The annular support platform (211) and the wheel body (220) are spaced apart and form an annular clearance groove (230).

9. The silent meshing track drive wheel structure according to claim 8, characterized in that: Multiple connectors (240) are located between the annular clearance groove (230) and the support (221).

10. The silent meshing track drive wheel structure according to claim 8, characterized in that: The disc (210) is a hollow, conical truncated structure with a constriction facing the wheel body (220). The circumferential sidewall of the disc (210) is provided with multiple weight-reducing through grooves (212).

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