Crawler drive wheel and excavator

Abstract

The application provides a caterpillar drive wheel and a excavator, and relates to the technical field of caterpillar drive equipment.The caterpillar drive wheel provided by the application comprises a wheel body, a connecting piece and a plurality of gear teeth, a plurality of mounting grooves are uniformly arranged on the outer periphery of the wheel body, the mounting grooves penetrate the wheel body along a first direction, the gear teeth comprise opposite tooth roots and tips, the shape of the tooth roots is consistent with the shape of the mounting grooves, the tooth roots of the plurality of gear teeth are correspondingly clamped in the mounting grooves, and the tips of the gear teeth are used for engaging with a caterpillar drive;one end of the tooth root towards the bottom of the mounting groove is provided with a first connecting hole, the bottom of the mounting groove is provided with a second connecting hole corresponding to the position of the first connecting hole, and the connecting piece is connected between the first connecting hole and the second connecting hole, wherein the first direction is consistent with the axial direction of the wheel body.The caterpillar drive wheel and the excavator provided by the application are simple and convenient to maintain.

Description

Technical Field

[0001] This application relates to the field of tracked drive equipment technology, and in particular to a tracked drive wheel and an excavator. Background Technology

[0002] In the field of construction machinery, tracked drive equipment is widely used, especially excavators. As a common and important piece of equipment in construction, the stability and reliability of its tracked drive system are crucial. During actual operation, excavators often need to travel and work on uneven, hard, or sharp surfaces due to the complex and varied working environment. The drive wheel teeth of the tracks are subjected to enormous pressure, friction, and impact forces, making them prone to wear and even breakage. In such cases, timely repair is necessary. Currently, the common repair method involves stopping the excavator, using specialized tools to remove the tracks and travel motor from the excavator, and then replacing the entire track drive wheel. However, this repair process is relatively cumbersome and inconvenient. Utility Model Content

[0003] To address at least one of the problems mentioned in the background art, this application provides a tracked drive wheel and an excavator, which are simple and convenient to maintain.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] In a first aspect, this application provides a track drive wheel, including a wheel body, a connecting member and a plurality of wheel teeth. A plurality of mounting grooves are evenly provided on the outer periphery of the wheel body. The mounting grooves penetrate the wheel body along a first direction. The wheel teeth include opposing tooth roots and tips. The shape of the tooth roots is consistent with the shape of the mounting grooves. The tooth roots of the plurality of wheel teeth are correspondingly engaged in the mounting grooves. The tips of the wheel teeth are used to mesh with the track drive.

[0006] The tooth root has a first connecting hole at the end facing the bottom of the mounting groove, and the bottom of the mounting groove has a second connecting hole corresponding to the position of the first connecting hole. The connector is connected between the first connecting hole and the second connecting hole, wherein the first direction is consistent with the axial direction of the wheel body.

[0007] As an alternative implementation, the wheel body includes an integrally formed outer ring and an inner ring, the outer ring surrounding the outer periphery of the inner ring, a mounting groove located on the outer ring, the thickness of the outer ring along a first direction being greater than the thickness of the inner ring along the first direction, so as to form a convex edge on at least one side of the inner ring in the axial direction, and a second connecting hole located on the convex edge.

[0008] As an optional implementation, two convex edges are formed on opposite sides of the inner ring along the axial direction, each of the two convex edges having a second connecting hole, and the second connecting holes on the two convex edges corresponding to each other along the axial direction of the outer ring.

[0009] As an optional implementation, the width of the top opening of the mounting groove along the second direction is less than the maximum width of the mounting groove along the second direction. Along the first direction, the mounting groove includes two opposite mounting openings along the first direction to engage the gear teeth from the mounting openings into the mounting groove along the first direction, wherein the second direction is perpendicular to the first direction.

[0010] As an optional implementation, the bottom of the mounting groove has a bevel at one end along the first direction, and the root of the gear tooth has a notch at one end along the first direction that matches the shape of the bevel, the notch abutting against the bevel.

[0011] As an optional implementation, the projection shape of the mounting groove along the first direction is a symmetrical multi-segment curve structure.

[0012] As an alternative implementation, a raised structure is formed on the outer ring near the top opening of the mounting groove.

[0013] As an alternative implementation, the gear tooth also includes an intermediate section located between the tip and the root, the width of the intermediate section along the second direction being greater than the width of the root along the second direction.

[0014] As an optional implementation, the dimension of the tooth root along the first direction is less than or equal to the dimension of the mounting groove along the first direction.

[0015] Secondly, this application also provides an excavator, including the track drive wheel of the first aspect.

[0016] The track drive wheel provided in this application includes a wheel body, a connecting member, and multiple wheel teeth. Multiple mounting grooves are evenly distributed on the outer periphery of the wheel body, and the mounting grooves penetrate the wheel body along a first direction. Each wheel tooth includes a tooth root and a tip. The shape of the tooth root is consistent with the shape of the mounting groove. The tooth roots of multiple wheels are correspondingly engaged in the mounting grooves, and the tips of the wheels are used to mesh with the track drive. The end of the tooth root facing the bottom of the mounting groove has a first connecting hole, and the bottom of the mounting groove has a second connecting hole corresponding to the position of the first connecting hole. The connecting member is connected between the first connecting hole and the second connecting hole. The first direction is consistent with the axial direction of the wheel body.

[0017] The track drive wheel provided in this application features multiple mounting slots evenly spaced along the axial direction of the wheel body, extending through the wheel body. The tooth roots have the same shape as the mounting slots, and the tooth roots are correspondingly engaged in the mounting slots. A first connecting hole is located at the end of the tooth root facing the bottom of the mounting slot, and a second connecting hole corresponding to the tooth root is located at the bottom of the mounting slot. A connector is used to connect the first and second connecting holes to fix the tooth to the wheel body. When a tooth malfunctions, the connector can be removed to remove the damaged tooth from the mounting slot. A new tooth root is then inserted into the corresponding mounting slot, aligning the first connecting hole of the tooth root with the second connecting hole at the bottom of the mounting slot. The connector is then used to secure the tooth, completing the installation. The entire disassembly and installation process does not require removing the track and travel motor from the excavator, nor does it require replacing the entire track drive wheel. This solves the problems of cumbersome and inconvenient maintenance processes in existing technologies, while also reducing maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a first structure of a tracked drive wheel provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of a second structure of the tracked drive wheel provided in an embodiment of this application;

[0021] Figure 3 This is an enlarged view of point A in diagram 2;

[0022] Figure 4 This is a first cross-sectional schematic diagram of a tracked drive wheel provided in an embodiment of this application;

[0023] Figure 5 This is an enlarged view of point B in section 4;

[0024] Figure 6 This is a second cross-sectional schematic diagram of the tracked drive wheel provided in an embodiment of this application;

[0025] Figure 7 This is a magnified view of point C in section 6.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100 - Track drive wheel;

[0028] 110 - Wheel body;

[0029] 111 - Outer ring; 1111 - Raised edge; 1112 - Raised structure;

[0030] 112 - Inner circle;

[0031] 113-Mounting slot; 1131-Second connecting hole; 1132-Bevel;

[0032] 120 - Connector;

[0033] 130-gear teeth;

[0034] 131-Tooth root; 1311-First connecting hole; 1312-Notch;

[0035] 132-tooth tip;

[0036] 133 - Middle Section. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In this application, the terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “lateral,” and “longitudinal” indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0039] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0040] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0041] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0042] Excavator track drive wheel teeth are prone to wear and even breakage after long-term use. Currently, the common repair method is for maintenance personnel to first stop the excavator, then use specialized tools to remove the tracks and travel motor from the excavator, and finally replace the entire track drive wheel. However, this repair process is rather cumbersome and inconvenient.

[0043] In view of this, this application provides a tracked drive wheel, including a wheel body, a connecting member, and multiple teeth. Multiple mounting grooves are evenly distributed around the outer periphery of the wheel body, extending through the wheel body along a first direction. Each tooth includes opposing tooth roots and tips. The shape of the tooth roots matches the shape of the mounting grooves. The tooth roots of the multiple teeth are correspondingly engaged in the mounting grooves, and the tips of the teeth are used to mesh with the track drive. A first connecting hole is located at the end of the tooth root facing the bottom of the mounting groove. A second connecting hole, corresponding to the position of the first connecting hole, is located at the bottom of the mounting groove. The connecting member connects between the first and second connecting holes. The first direction is consistent with the axial direction of the wheel body. When a tooth malfunctions, the damaged tooth can be removed from the mounting groove simply by disassembling the connecting member. Then, a new tooth root is inserted into the corresponding mounting groove, aligning the first connecting hole of the tooth root with the second connecting hole at the bottom of the mounting groove. Finally, the connecting member is used to secure the tooth, completing the installation. The entire disassembly and installation process does not require removing the tracks and travel motor from the excavator, nor does it require replacing the entire track drive wheel, thus solving the problems of cumbersome and inconvenient maintenance processes in existing technologies, while also reducing maintenance costs.

[0044] Figure 1 This is a schematic diagram of a first structure of a tracked drive wheel provided in an embodiment of this application; Figure 2 This is a schematic diagram of a second structure of the tracked drive wheel provided in an embodiment of this application; Figure 3 This is an enlarged view of point A in diagram 2; Figure 4 This is a first cross-sectional schematic diagram of a tracked drive wheel provided in an embodiment of this application; Figure 5 This is an enlarged view of point B in section 4; Figure 6 This is a second cross-sectional schematic diagram of the tracked drive wheel provided in an embodiment of this application; Figure 7 This is a magnified view of point C in section 6.

[0045] You can refer to this. Figures 1 to 7This application provides a track drive wheel 100, including a wheel body 110, a connector 120, and a plurality of teeth 130. The wheel body 110 has a plurality of mounting grooves 113 evenly distributed on its outer periphery. The mounting grooves 113 penetrate the wheel body 110 along a first direction. Each tooth 130 includes a corresponding tooth root 131 and a tip. The shape of the tooth root 131 is consistent with the shape of the mounting groove 113. The tooth roots 131 of the plurality of teeth 130 are correspondingly engaged in the mounting grooves 113, and the tips of the teeth 130 are used to mesh with the track drive. One end of the tooth root 131 facing the bottom of the mounting groove 113 has a first connecting hole 1311. The bottom of the mounting groove 113 has a second connecting hole 1131 corresponding to the position of the first connecting hole 1311. The connector 120 connects between the first connecting hole 1311 and the second connecting hole 1131. The first direction is consistent with the axial direction of the wheel body 110.

[0046] The tracked drive wheel 100 provided in this application embodiment has multiple mounting grooves 113 evenly opened on the outer periphery of the wheel body 110, which penetrate the wheel body 110 along the axial direction of the wheel body 110. The shape of the tooth root 131 of the wheel tooth 130 is consistent with the shape of the mounting groove 113. The tooth roots 131 of the multiple wheel teeth 130 are correspondingly engaged in the mounting groove 113. A first connecting hole 1311 is provided at the end of the tooth root 131 facing the bottom of the mounting groove 113. A second connecting hole 1131 corresponding to the position is provided at the bottom of the mounting groove 113. The wheel teeth 130 are fixed to the wheel body 110 by connecting the first connecting hole 1311 and the second connecting hole 1131 through the connector 120. When the tooth 130 malfunctions, simply disassemble the connector 120 to remove the damaged tooth 130 from the mounting slot 113. Then, insert the tooth root 131 of the new tooth 130 into the corresponding mounting slot 113, aligning the first connecting hole 1311 of the tooth root 130 with the second connecting hole 1131 at the bottom of the mounting slot 113. Finally, secure it with the connector 120 to complete the installation. The entire disassembly and installation process does not require removing the tracks and travel motor from the excavator, nor does it require replacing the entire track drive wheel 100. This solves the problems of cumbersome and inconvenient maintenance processes in existing technologies, while also reducing maintenance costs.

[0047] In the above embodiments, the wheel body 110 may include an integrally formed outer ring 111 and an inner ring 112. The outer ring 111 surrounds the outer periphery of the inner ring 112, and the mounting groove 113 is located on the outer ring 111. The thickness of the outer ring 111 along the first direction is greater than the thickness of the inner ring 112 along the first direction, so as to form a protruding edge 1111 on at least one side of the inner ring 112 in the axial direction. The second connecting hole 1131 is located on the protruding edge 1111. It can be understood that the design of the protruding edge 1111 can provide additional space for the disassembly operation of the connector 120. The operator can directly approach the connector 120 at the protruding edge 1111 from the side of the wheel body 110 in the axial direction to complete the disassembly operation, which greatly improves the convenience and efficiency of the operation without being excessively obstructed by other structural components of the wheel body 110 (such as the inner ring 112 body and the side wall of the outer ring 111), reducing the space restriction of the operation. In actual maintenance, this design allows maintenance personnel easier access to the connector 120, enabling direct disassembly and rapid removal of the wheel tooth 130 from the mounting slot 113. Compared to traditional designs, this structure avoids disassembly difficulties caused by the concealed location or confined space of the connector 120, significantly shortening maintenance time and reducing maintenance difficulty. Furthermore, this design enhances maintenance safety to some extent, reducing the risk of accidental injury to maintenance personnel operating in confined spaces. It also facilitates the subsequent installation and repositioning of the wheel tooth 130, further ensuring efficient maintenance and replacement of the track drive wheel 100.

[0048] In the above embodiment, two convex edges are formed on opposite sides of the inner ring along the axial direction. Each of the two convex edges 1111 may have a second connecting hole 1131, and the second connecting holes 1131 on the two convex edges 1111 correspond to each other along the axial direction of the outer ring 111. It can be understood that the fact that both convex edges 1111 have second connecting holes 1131 and are opposite each other along the axial direction of the outer ring 111 allows the connecting parts 120 (such as pins, bolts, etc.) to pass through the corresponding second connecting holes 1131 and first connecting holes 1311 in sequence and connect with the tooth root 131 of the gear tooth 130. This forms a uniform and symmetrical fastening force on the gear tooth 130 from both sides of the wheel body 110, so that the gear tooth 130 can remain stable when subjected to complex loads such as driving force and impact force transmitted by the track, and is not prone to shaking or deviation, thus ensuring the reliability of the transmission of the track drive wheel 100. Secondly, during assembly, this design provides clear positioning guidance, allowing assemblers to quickly and accurately align the first connecting hole 1311 of the tooth root 131 of the gear 130 with the second connecting holes 1131 of the two protruding edges 1111, reducing assembly difficulty, improving assembly efficiency, and minimizing potential malfunctions caused by improper installation. Furthermore, because the connecting holes are correspondingly positioned and distributed on the protruding edges 1111, maintenance personnel can easily approach the connector 120 from both sides of the wheel body 110, making both disassembly and installation of the connector 120 more convenient. This facilitates quick replacement of damaged gear teeth 130, shortens maintenance time, and improves equipment utilization efficiency. The degree of protrusion of the two protruding edges 1111 can be consistent or inconsistent, and the size and specifications of the connector 120 connected to the two protruding edges 1111 can be adjusted according to the degree of protrusion of the protruding edges 1111.

[0049] In the above embodiment, the width of the top opening of the mounting groove 113 along the second direction can be less than the maximum width of the mounting groove 113 along the second direction. Along the first direction, the mounting groove 113 includes two opposing mounting openings to engage the gear tooth 130 from the mounting openings into the mounting groove 113 along the first direction. The second direction is perpendicular to the first direction. It can be understood that the width of the top opening of the mounting groove 113 along the second direction being less than its maximum width can form a "narrowing" structure. When the gear tooth 130 is engaged from the mounting opening along the first direction, it can form a radial limit on the gear tooth 130. Combined with the fixing of the connecting piece 120, it can effectively prevent the gear tooth 130 from detaching from the mounting groove 113 along the second direction during power transmission, significantly improving the reliability of the connection between the gear tooth 130 and the wheel body 110. Secondly, the two opposing mounting openings along the first direction allow the gear tooth 130 to be directly engaged into the mounting groove 113 axially. This, combined with the mounting groove 113 and the outer edge of the tooth root 131 of the gear tooth 130, effectively prevents the gear tooth 130 from detaching from the mounting groove 113 along the second direction during power transmission, significantly improving the reliability of the connection between the gear tooth 130 and the wheel body 110. The shape-matching design enables quick positioning and installation of the gear teeth 130 without complex alignment operations. Simultaneously, during maintenance, this structure allows for easy removal of the damaged gear teeth 130 from the mounting port along the first direction after disassembling the connector 120. Combined with the connecting hole design on the protruding edge 1111, this further simplifies the gear tooth replacement process, avoiding disassembly obstacles caused by the gear tooth fixing method in traditional structures and improving maintenance convenience. Furthermore, this "retractable" structure can disperse the radial load borne by the gear teeth 130, reduce stress concentration at the edge of the mounting groove 113, and extend the service life of the wheel body 110.

[0050] In the above embodiment, the bottom end of the mounting groove 113 along the first direction may have a slope 1132, and the root 131 of the gear tooth 130 along the first direction has a notch 1312 that matches the shape of the slope 1132, and the notch 1312 abuts against the slope 1132. It can be understood that the slope 1132 at the bottom of the mounting groove 113 and the notch 1312 matching the shape of the root 131 of the gear tooth 130 abut against each other, forming a precise positioning structure. When the gear tooth 130 is inserted into the mounting groove 113 from the mounting opening along the first direction, as the gear tooth 130 continues to advance, the notch 1312 of the root 131 of the gear tooth 130 gradually approaches and contacts the slope 1132 at the bottom of the mounting groove 113. During the continuous installation process, the tooth 130 moves precisely under the guidance of the inclined surface 1132 and the notch 1312. When the notch 1312 fully abuts against the inclined surface 1132, the tooth 130 reaches the preset installation position and cannot move further. At this point, the first connecting hole 1311 of the tooth root 131 of the tooth 130 is perfectly aligned with the second connecting hole 1131 on the bottom protrusion 1111 of the mounting groove 113. The maintenance personnel can then insert the connector 120 into the second connecting hole 1131 and the first connecting hole 1311 in sequence, thereby fixing and limiting the tooth 130 and completing the connection between the tooth 130 and the wheel body 110. This notch 1312 and inclined surface 1132 not only provide precise positioning and guidance for the installation of the tooth 130, ensuring accurate alignment of the connecting holes, but also greatly simplifies the installation process, improves installation efficiency, and effectively guarantees the stability and reliability of the track drive wheel 100 structure.

[0051] In the above embodiments, the projected shape of the mounting groove 113 along the first direction can be a symmetrical multi-segment curved structure. It can be understood that the symmetrical design ensures that when the tooth 130 is engaged from the mounting opening along the first direction, the fit and force distribution between the tooth root 131 of the tooth 130 and the mounting groove 113 remain consistent. The multi-segment curved structure can adapt to the force characteristics of the tooth root 131 of the tooth 130. When the excavator is operating, the tooth 130 needs to withstand the periodic impact and friction transmitted by the track. The curved structure can disperse stress through a smooth transition contour, avoiding the stress concentration problem that easily occurs at the corners of the traditional straight mounting groove 113, and reducing stress. The fatigue damage caused by long-term stress on the wheel body 110 and the tooth root 131 of the tooth 130 is prevented, thus extending their service life. Furthermore, the curved structure can match the shape of the tooth root 131 of the tooth 130, which can more evenly transmit the driving force borne by the tooth 130 to the wheel body 110, enhancing the stability of the connection between the tooth 130 and the wheel body 110. At the same time, through the limiting effect of the curved profile, the radial and circumferential movement of the tooth 130 during operation is further suppressed, ensuring the smoothness of the meshing transmission between the track and the tooth 130.

[0052] In the above embodiment, a protruding structure 1112 can be formed on the outer ring 111 near the top opening of the mounting groove 113. It can be understood that the protruding structure 1112 can reduce the actual width of the top opening of the mounting groove 113, forming a "retractable" structure with the larger space inside the mounting groove 113. When the wheel tooth 130 is inserted into the mounting groove 113 from the mounting opening along the first direction and completed positioning, the protruding structure 1112 can form a radial limit on the root 131 of the wheel tooth 130 from the top of the mounting groove 113, effectively preventing the wheel tooth 130 from moving upward or detaching from the mounting groove 113 when bearing the radial load and impact force transmitted by the track meshing. With the axial fixing effect of the connecting piece 120, the stability of the connection between the wheel tooth 130 and the wheel body 110 is further enhanced, avoiding track drive jamming or failure due to loosening of the wheel tooth 130. Secondly, the raised structure 1112 can serve as a guide structure for the installation of the gear tooth 130. During the process of inserting the gear tooth 130 into the mounting groove 113 along the first direction, its smooth edge can guide the tooth root 131 of the gear tooth 130 to slide precisely into the interior of the mounting groove 113, reducing the collision and scratching between the gear tooth 130 and the opening of the mounting groove 113, reducing the risk of damage to the gear tooth 130 or the mounting groove 113 during installation, and improving assembly efficiency. In addition, the raised structure 1112 is distributed around the opening of the mounting groove 113, which can locally strengthen the edge of the opening of the mounting groove 113, avoiding the weakening of the structural strength of the outer ring 111 due to the opening of the mounting groove 113, and better dispersing the stress transmitted by the gear tooth 130 to the edge of the mounting groove 113, reducing fatigue cracks in the outer ring 111 caused by long-term stress, and extending the overall service life of the wheel body 110.

[0053] In the above embodiments, the tooth 130 may further include an intermediate section 133, which is located between the tip and the root 131. The width of the intermediate section 133 along the second direction is greater than the width of the root 131 along the second direction. It can be understood that the wider intermediate section 133 of the tooth 130 increases the overall cross-sectional area of ​​the tooth 130, enabling it to more efficiently bear the driving force, impact force, and friction force transmitted from the tip of the track, and to evenly distribute the load to the root 131. This avoids stress concentration at the connection between the root 131 and the wheel body 110, significantly improving the tooth 130's bending and wear resistance, reducing the risk of breakage and deformation of the tooth 130 under complex working conditions, and extending the service life of the tooth 130. Regarding the stability of track meshing transmission, the wider size of the middle section 133 can increase the meshing contact area between the wheel tooth 130 and the track link, making the meshing force more uniform and reducing local excessive wear. At the same time, it can enhance the clamping and guiding effect of the wheel tooth 130 on the track, suppress the track's deviation and swaying in the second direction during transmission, and ensure the smooth operation of the track drive system.

[0054] In the above embodiments, the dimension of the tooth root 131 of the gear tooth 130 along the first direction can be less than or equal to the dimension of the mounting groove 113 along the first direction. It is understood that having the dimension of the tooth root 131 of the gear tooth 130 along the first direction less than or equal to the dimension of the mounting groove 113 along that direction effectively avoids adding extra size to the drive wheel during installation, allowing the drive wheel to remain compact while meeting functional requirements and adapting to the limited installation space of the excavator. Furthermore, during installation and use, this dimensional setting also ensures that the gear tooth 130 can be smoothly installed in the mounting groove 113. Even if the gear tooth 130 experiences slight wobble in the first direction, due to its size limitation, it will not protrude from either side of the mounting groove 113, improving the mounting groove 113's ability to limit the gear tooth 130's shape, thereby indirectly improving the load-bearing capacity of the gear tooth 130 on the track. This ensures that the gear tooth 130 remains stable when transmitting track driving force and bearing various complex loads, ensuring the stable operation of the excavator's track drive system.

[0055] Furthermore, this application embodiment also provides an excavator, including the track drive wheel 100 in the above embodiment. The track drive wheel 100 includes a wheel body 110, a connecting member 120, and a plurality of wheel teeth 130. A plurality of mounting grooves 113 are evenly provided on the outer periphery of the wheel body 110. The mounting grooves 113 penetrate the wheel body 110 along a first direction. The wheel teeth 130 include opposing tooth roots 131 and tips. The shape of the tooth roots 131 is consistent with the shape of the mounting grooves 113. The tooth roots 131 of the plurality of wheel teeth 130 are correspondingly engaged in the mounting grooves 113. The tips of the wheel teeth 130 are used to mesh with the track drive. The end of the tooth root 131 facing the bottom of the mounting groove 113 has a first connecting hole 1311. The bottom of the mounting groove 113 has a second connecting hole 1131 corresponding to the position of the first connecting hole 1311. The connecting member 120 is connected between the first connecting hole 1311 and the second connecting hole 1131. When the tooth 130 malfunctions, simply disassemble the connector 120 to remove the damaged tooth 130 from the mounting slot 113. Then, insert the tooth root 131 of the new tooth 130 into the corresponding mounting slot 113, aligning the first connecting hole 1311 of the tooth root 130 with the second connecting hole 1131 at the bottom of the mounting slot 113. Finally, secure it with the connector 120 to complete the installation. The entire disassembly and installation process does not require removing the tracks and travel motor from the excavator, nor does it require replacing the entire track drive wheel 100. This solves the problems of cumbersome and inconvenient maintenance processes in existing technologies, reduces the maintenance cost of the excavator, and improves the operating efficiency of the excavator.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tracked drive wheel (100), characterized in that, The device includes a wheel body (110), a connector (120), and multiple teeth (130). The wheel body (110) has multiple mounting grooves (113) evenly distributed on its outer periphery. The mounting grooves (113) penetrate the wheel body (110) along a first direction. Each tooth (130) includes a tooth root (131) and a tip. The shape of the tooth root (131) is consistent with the shape of the mounting groove (113). The tooth roots (131) of the multiple teeth (130) are correspondingly engaged in the mounting grooves (113). The tips of the teeth (130) are used to mesh with the track drive. The tooth root (131) has a first connecting hole (1311) at one end facing the bottom of the mounting groove (113), and the bottom of the mounting groove (113) has a second connecting hole (1131) corresponding to the position of the first connecting hole (1311). The connector (120) is connected between the first connecting hole (1311) and the second connecting hole (1131), wherein the first direction is consistent with the axial direction of the wheel body (110).

2. The tracked drive wheel (100) according to claim 1, characterized in that, The wheel body (110) includes an integrally formed outer ring (111) and an inner ring (112). The outer ring (111) surrounds the outer periphery of the inner ring (112). The mounting groove (113) is located on the outer ring (111). The thickness of the outer ring (111) along the first direction is greater than the thickness of the inner ring (112) along the first direction, so as to form a protruding edge (1111) on at least one side of the inner ring (112) in the axial direction. The second connecting hole (1131) is located on the protruding edge (1111).

3. The tracked drive wheel (100) according to claim 2, characterized in that, Two protruding edges (1111) are formed on opposite sides of the inner ring (112) along the axial direction. Each of the two protruding edges (1111) has a second connecting hole (1131), and the second connecting holes (1131) on the two protruding edges (1111) correspond to each other along the axial position of the outer ring (111).

4. The tracked drive wheel (100) according to claim 3, characterized in that, The width of the top opening of the mounting groove (113) along the second direction is less than the maximum width of the mounting groove (113) along the second direction. Along the first direction, the mounting groove (113) includes two opposite mounting openings along the first direction to engage the gear tooth (130) from the mounting openings into the mounting groove (113) along the first direction, wherein the second direction is perpendicular to the first direction.

5. The tracked drive wheel (100) according to claim 4, characterized in that, The bottom of the mounting groove (113) has a bevel (1132) at one end along the first direction, and the tooth root (131) of the gear tooth (130) has a notch (1312) at one end along the first direction that matches the shape of the bevel (1132), and the notch (1312) abuts against the bevel (1132).

6. The tracked drive wheel (100) according to claim 5, characterized in that, The projection shape of the mounting groove (113) along the first direction is a symmetrical multi-segment curve structure.

7. The tracked drive wheel (100) according to claim 6, characterized in that, A raised structure (1112) is formed on the outer ring (111) near the top opening of the mounting groove (113).

8. The tracked drive wheel (100) according to claim 7, characterized in that, The gear tooth (130) further includes an intermediate section (133) located between the tip and the root (131), the width of the intermediate section (133) along the second direction being greater than the width of the root (131) along the second direction.

9. The tracked drive wheel (100) according to any one of claims 1-8, characterized in that, The tooth root (131) of the gear tooth (130) along the first direction is less than or equal to the dimension of the mounting groove (113) along the first direction.

10. An excavator, characterized in that, Includes the tracked drive wheel (100) as described in any one of claims 1-9.

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