Crawler chassis structure and crawler

Abstract

The utility model relates to a kind of tracked machine chassis structure and tracked machine, involve agricultural machinery technical field, wherein, a kind of tracked machine chassis structure, including chassis frame and multiple supporting wheel shafts, the middle end side of each supporting wheel shaft is fixedly connected with fixed plate, the both ends of each fixed plate are relative to corresponding supporting wheel shaft and form cantilever structure, and the both ends of each fixed plate are detachably connected with fastener, each fastener is detachably connected to the chassis frame.The utility model is convenient for the replacement of supporting wheel sleeve and supporting wheel shaft, can relatively reduce replacement cost, and relatively improve replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a tracked machine chassis structure and a tracked machine. Background Technology

[0002] The tracks, as the walking mechanism of a tracked machine, provide contact and friction with the ground, enabling stable movement of the machine while distributing its weight, reducing ground pressure, and increasing mobility. The track rollers support the weight of the tracks and the machine, guiding the track's direction of movement and ensuring it maintains the correct position and tension during operation, thus guaranteeing smooth operation and efficient work. The coordinated work of these two components ensures the reliability and durability of the tracked machine in complex terrain and harsh environments, forming the foundation for its efficient task completion.

[0003] In existing technology, tracked conveyor chassis frames are welded with track roller sleeves, and track roller axles pass through the sleeves and are bolted together. The track rollers are then mounted at both ends via bearings, and the two track rollers support the entire machine on the tracks. However, after prolonged operation, the track roller sleeves and axles experience relative rotational wear, necessitating the cutting of the track roller sleeves and replacement of both the axle and sleeve, or even the complete replacement of the chassis frame. This replacement process is costly and inefficient. Utility Model Content

[0004] This utility model provides a tracked machine chassis structure and tracked machine, which facilitates the replacement of track roller sleeves and track roller axles, thereby reducing replacement costs and improving replacement efficiency.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: This utility model provides a tracked machine chassis structure, including a chassis frame and multiple support roller axles. Each support roller axle has a fixed plate fixedly connected to its middle side. Each fixed plate has a cantilever structure at both ends relative to the corresponding support roller axle. Each fixed plate has a fastener detachably connected to both ends. Each fastener is detachably connected to the chassis frame.

[0006] The beneficial effects of this utility model are: during long-term use, when the support roller axle is worn and needs to be replaced, it is only necessary to remove the fastener, replace the new support roller axle, and then install the new support roller axle through the fastener. Disassembly and replacement are convenient. Compared with the prior art, which requires cutting the support roller sleeve and replacing the axle and sleeve, or directly replacing the entire chassis frame, the sleeve is eliminated, the replacement cost is reduced, and the replacement efficiency is higher.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the chassis frame has multiple first fastening holes, and each of the fixed plates has at least two second fastening holes through both ends. Each of the second fastening holes corresponds to and connects with each of the first fastening holes. Each of the fasteners is fixed to the chassis frame and the fixed plate through the connected first fastening holes and second fastening holes.

[0009] Furthermore, each of the fasteners includes a bolt, a washer fitted onto the bolt shank, and a nut threaded onto the bolt. The bolt passes through both the chassis frame and the fixing plate, and the nut is pressed against the washer.

[0010] Furthermore, the chassis frame includes a frame body and two C-shaped beams that are fixedly connected to the frame body. The two C-shaped beams have openings facing away from each other, and their closed ends are fixedly connected to each other. The lower ends of the two C-shaped beams are simultaneously connected to the fixed plate by the fasteners.

[0011] Furthermore, the chassis frame also includes a rectangular tube fixedly connected to the frame body, and the upper ends of the two C-shaped beams are both fixedly connected to the rectangular tube.

[0012] Furthermore, multiple reinforcing plates are fixedly connected to the inner sides of the open ends of both C-shaped beams, with the reinforcing plates spaced apart.

[0013] Furthermore, bearings are fixed at both ends of the support roller axle, the two bearings are located on both sides of the fixed plate, and the outer rings of the two bearings are fixedly connected to the support rollers.

[0014] Furthermore, two oil seals are fitted on the support roller shaft, and the two oil seals are respectively located between the two bearings and the fixing plate.

[0015] Furthermore, both of the support rollers have detachable covers on their outer sides away from the fixed plate.

[0016] This utility model also provides a tracked machine, including a tracked machine chassis structure. Attached Figure Description

[0017] Figure 1 This is a side view of the tracked machine chassis structure of this utility model; Figure 2 For the present utility model Figure 1 A magnified view of a portion of the image; Figure 3 This is a partial structural diagram of the tracked machine chassis structure of this utility model; Figure 4 This is an axonometric drawing of the support roller axle of this utility model; Figure 5This is a top view of the support roller axle of this utility model; Figure 6 This is a partial structural diagram of the chassis frame of this utility model; Figure 7 This is a partial sectional view of the tracked machine chassis structure of this utility model; Figure 8 This is a side view of the tracked machine of this utility model; Figure 9 This is a cross-sectional view of the installation structure of a support roller in the prior art.

[0018] The attached diagram lists the components represented by each number as follows: 1. Chassis frame; 11. Frame body; 12. C-beam; 121. First fastening hole; 122. Reinforcing plate; 13. Rectangular tube; 14. Track roller sleeve; 2. Track roller axle; 3. Fixing plate; 31. Second fastening hole; 4. Fastener; 41. Bolt; 42. Washer; 43. Nut; 5. Bearing; 51. Oil seal; 6. Track roller; 61. Cover; 7. Track; 8. Guide rail. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] like Figure 9 In the existing technology, a tracked machine chassis frame 1 is welded with a support roller sleeve 14. The support roller axle 2 passes through the support roller sleeve 14 and is tightened with bolts. Support rollers 6 are installed at both ends through bearings 5. The two support rollers 6 support the entire machine on the track 7. With this installation method, after long-term operation, the support roller sleeve 14 and the support roller axle 2 will experience relative rotational wear. It is necessary to cut the support roller sleeve 14 and replace the support roller axle 2 and the support roller sleeve 14, or directly replace the entire chassis frame 1. The replacement cost is high and the replacement efficiency is low.

[0021] In view of the above-mentioned defects in the prior art, this utility model provides a tracked machine chassis structure, as described above.

[0022] Example 1 like Figures 1-6 This utility model provides a tracked machine chassis structure, including a chassis frame 1 and multiple support roller axles 2. Each support roller axle 2 has a fixing plate 3 fixedly connected to its middle side. Each fixing plate 3 has a cantilever structure at both ends relative to the corresponding support roller axle 2. Each fixing plate 3 has a fastener 4 detachably connected to both ends. Each fastener 4 is detachably connected to the chassis frame 1.

[0023] The beneficial effects of this embodiment are: during long-term use, when the support roller axle 2 wears out and needs to be replaced, it is only necessary to remove the fastener 4, replace the new support roller axle 2, and then install the new support roller axle 2 through the fastener 4. Disassembly and replacement are convenient. Compared with the prior art, which requires cutting the support roller sleeve and replacing the axle and sleeve, or directly replacing the entire chassis frame, the sleeve is eliminated, the replacement cost is reduced, and the replacement efficiency is higher.

[0024] The side of the fixed plate 3 facing away from the support wheel axle 2 is a planar structure, so as to form a planar contact with the chassis frame 1 and ensure the stability of the support for the chassis frame 1.

[0025] Example 2 like Figures 2-6 Based on embodiment 1, the chassis frame 1 is provided with a plurality of first fastening holes 121, and each of the two ends of each fixing plate 3 is provided with at least two second fastening holes 31. Each second fastening hole 31 corresponds to and is connected to each of the first fastening holes 121. Each fastener 4 is fixed to the chassis frame 1 and the fixing plate 3 through the connected first fastening holes 121 and second fastening holes 31 respectively.

[0026] The beneficial effect of adopting the preferred solution in the above embodiments is that the fastener 4 can be quickly connected and installed with the chassis frame 1 and the fixing plate 3 by opening the first fastening hole 121 and the second fastening hole 31; at the same time, at least two second fastening holes 31 are opened through both ends of the fixing plate 3, that is, at least four fasteners 4 are provided, so as to ensure the stability of the connection between each fastener 4 and the chassis frame 1 and the fixing plate 3.

[0027] Specifically, the second fastening holes 31 located at both ends of the fixing plate 3 are arranged in an array, and the number of the second fastening holes 31 at both ends is equal, and the distances relative to the fixing plate 3 are equal.

[0028] Example 3 like Figure 2 and Figure 3 Based on embodiments 1 and 2, each fastener 4 includes a bolt 41, a washer 42 sleeved on the shank of the bolt 41, and a nut 43 threaded to the bolt 41. The bolt 41 passes through both the chassis frame 1 and the fixing plate 3, and the nut 43 is pressed against the washer 42.

[0029] The beneficial effect of adopting the preferred solution in the above embodiments is that when it is necessary to replace the support roller shaft 2, the support roller shaft 2 can be quickly disassembled by simply unscrewing the nut 43 and removing the washer 42 and bolt 41 in sequence. The disassembly and assembly are convenient and quick.

[0030] Based on the above embodiment, the bolt 41 is simultaneously inserted into the connected first fastening hole 121 and the second fastening hole 31.

[0031] Example 4 like Figure 3 and Figure 6 Based on embodiments 1-3, the chassis frame 1 includes a frame body 11 and two C-shaped beams 12 that are fixedly connected to the frame body 11. The two C-shaped beams 12 have openings facing away from each other, and their closed ends are fixedly connected to each other. The lower ends of the two C-shaped beams 12 are simultaneously connected to the fixing plate 3 by fasteners 4.

[0032] The advantage of adopting the preferred solution in the above embodiments is that the two C-shaped beams 12 have opposite openings to form a disassembly port, so as to carry out the disassembly and assembly of the fasteners 4.

[0033] Among them, the lower sides of the two C-shaped beams 12 form a planar structure to form a surface contact with the planar structure formed by the fixed plate 3, so as to ensure the stability of the support for the chassis frame 1.

[0034] Based on the above embodiment, the lower ends of both C-shaped beams 12 are provided with multiple first fastening holes 121 for the installation of fasteners 4.

[0035] Example 5 like Figure 3 and Figure 6 Based on embodiments 1-4, the chassis frame 1 also includes a rectangular tube 13 fixedly connected to the frame body 11, and the upper ends of the two C-shaped beams 12 are fixedly connected to the rectangular tube 13.

[0036] The advantages of adopting the preferred solution in the above embodiments are that the rectangular tube 13 supports the two C-shaped beams 12, ensuring structural stability, and the hollow rectangular tube 13 reduces the weight of the equipment.

[0037] The frame 11, rectangular tube 13, and C-beam 12 can all be fixed by welding.

[0038] Example 6 like Figure 2 and Figure 6 Based on embodiments 1-5, multiple reinforcing plates 122 are fixedly connected to the inner side of the open ends of the two C-shaped beams 12, and the reinforcing plates 122 are distributed at intervals.

[0039] The beneficial effect of adopting the preferred embodiment described above is that the structural strength of the C-beam 12 is improved by using the reinforcing plate 122. The reinforcing plate 122 is welded to the C-beam 12.

[0040] Example 7 like Figure 7 and Figure 8 Based on embodiments 1-6, bearings 5 ​​are fixed at both ends of the support roller shaft 2. The two bearings 5 ​​are located on both sides of the fixing plate 3, and the outer rings of the two bearings 5 ​​are fixedly connected to the support rollers 6.

[0041] The advantage of adopting the preferred solution in the above embodiments is that the rotational installation of the support roller 6 can be completed through the support roller shaft 2 and the bearing 5.

[0042] As is a well-known technical means for those skilled in the art, the inner ring of the support roller shaft 2 and the bearing 5 can be connected by an interference fit, and the outer ring of the bearing 5 and the hub of the support roller 6 can be connected by a set screw or a retaining ring; when removing the support roller shaft 2, the support roller 6 and the bearing 5 can be removed first.

[0043] Example 8 like Figure 7 and Figure 8 Based on embodiments 1-7, two oil seals 51 are fitted on the support roller shaft 2, and the two oil seals 51 are respectively located between the two bearings 5 ​​and the fixing plate 3.

[0044] The beneficial effect of adopting the preferred solution in the above embodiments is that the bearing 5 is sealed and protected by the oil seal 51, preventing lubricating oil leakage and impurities from entering, thereby improving the reliability, stability and service life of the equipment and reducing maintenance costs.

[0045] Example 9 like Figure 7 and Figure 8 Based on embodiments 1-8, both support rollers 6 can be detachably connected to a cover 61 on the outer side away from the fixed plate 3.

[0046] The beneficial effect of adopting the preferred solution in the above embodiments is that the cover 61 forms protection for the support roller shaft 2 and the bearing 5 inside it, preventing lubricating oil leakage and impurities from entering, and extending the service life of the equipment.

[0047] The cover 61 can be installed on the support roller 6 by bolts.

[0048] Example 10 This utility model also provides a tracked machine, such as Figure 8 It includes the tracked machine chassis structure as described in Examples 1-9, and also includes the track 7 and the guide rail 8 fixedly installed on the frame 1. The two support rollers 6 are located on both sides of the guide rail 8 and on the inner side of the track 7.

[0049] In use, the guide rail 8 provides support and guidance for the operation of the track 7, and supports the whole machine under the combined action of the track 7 and multiple support rollers 6.

[0050] In this embodiment, each track 7 is provided with two C-shaped beams 12 and one rectangular tube 13.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[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, unless otherwise explicitly limited. 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 this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tracked machine chassis structure, comprising a chassis frame (1) and a plurality of support roller axles (2), characterized in that, Each of the support roller axles (2) has a fixed plate (3) fixedly connected to its middle side. Each of the fixed plates (3) forms a cantilever structure relative to the corresponding support roller axle (2). Each of the fixed plates (3) has a fastener (4) detachably connected to both ends. Each of the fasteners (4) is detachably connected to the chassis frame (1).

2. The tracked machine chassis structure according to claim 1, characterized in that, The chassis frame (1) has a plurality of first fastening holes (121), and each of the fixing plates (3) has at least two second fastening holes (31) through both ends. Each of the second fastening holes (31) corresponds to and connects with each of the first fastening holes (121). Each of the fasteners (4) is fixed to the chassis frame (1) and the fixing plate (3) through the connected first fastening holes (121) and second fastening holes (31).

3. The tracked machine chassis structure according to claim 1, characterized in that, Each of the fasteners (4) includes a bolt (41), a washer (42) fitted onto the shank of the bolt (41), and a nut (43) threaded onto the bolt (41). The bolt (41) passes through both the chassis frame (1) and the fixing plate (3), and the nut (43) is pressed against the washer (42).

4. The tracked machine chassis structure according to claim 1, characterized in that, The chassis frame (1) includes a frame (11) and two C-shaped beams (12) that are fixedly connected to the frame (11). The two C-shaped beams (12) have openings facing away from each other and their closed ends are fixedly connected to each other. The lower ends of the two C-shaped beams (12) are simultaneously connected to the fixing plate (3) by the fasteners (4).

5. The tracked machine chassis structure according to claim 4, characterized in that, The chassis frame (1) also includes a rectangular tube (13), and the upper ends of the two C-beams (12) are fixedly connected to the rectangular tube (13).

6. The tracked machine chassis structure according to claim 4, characterized in that, Multiple reinforcing plates (122) are fixedly connected to the inner side of the open ends of the two C-shaped beams (12), and the reinforcing plates (122) are distributed at intervals.

7. The tracked machine chassis structure according to claim 1, characterized in that, Both ends of the support roller axle (2) are fixed with bearings (5), the two bearings (5) are located on both sides of the fixed plate (3), and the outer rings of the two bearings (5) are fixedly connected with support rollers (6).

8. The tracked machine chassis structure according to claim 7, characterized in that, Two oil seals (51) are fitted on the support roller shaft (2), and the two oil seals (51) are respectively located between the two bearings (5) and the fixing plate (3).

9. The tracked machine chassis structure according to claim 7, characterized in that, Both of the support rollers (6) are detachably connected to caps (61) on the outer side away from the fixed plate (3).

10. A tracked machine, characterized in that, Includes the tracked machine chassis structure as described in any one of claims 1-9.

Images