Caterpillar traveling contour wheel system

Abstract

The application relates to the technical field of crawler-type harvesters, in particular to a profile wheel system device for crawler-type walking, which comprises a connecting shaft, a rocking seat and a supporting wheel assembly; wherein the connecting shaft is used for being connected to a frame, and the rocking seat is rotationally connected with the connecting shaft; any supporting wheel assembly comprises two supporting wheels, the two supporting wheels are arranged on opposite sides of the rocking seat along a first preset direction, and any supporting wheel is rotationally connected with the rocking seat. It can be seen that the structure composed of the supporting wheels and the rocking seat can rotate relative to the connecting shaft and the frame in the profile wheel system device for crawler-type walking, that is, the supporting wheels can float forward and backward within a certain range, the supporting wheels can follow the ground fluctuation during use, thereby filtering out the rigid transmission vibration, and thus the driving comfort can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of track-type harvester, in particular to a track-type traveling profile wheel system device. BACKGROUND

[0002] At present, the track-type harvester is a kind of agricultural machinery suitable for complex terrain and harsh environment, especially suitable for working on muddy, wet or uneven ground, which has strong adaptability, flexible operation and high efficiency harvesting performance, and has been widely applied. However, the fixed assembly method is adopted for the supporting wheel of the track-type harvester, which can directly transmit the ground fluctuation to the vehicle body part, and the driving experience of the driver is poor. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to provide a track-type traveling profile wheel system device, which solves the technical problem that the fixed assembly method is adopted for the supporting wheel of the track-type harvester in the prior art, which can directly transmit the ground fluctuation to the vehicle body part, and the driving experience of the driver is poor.

[0004] The present application provides a track-type traveling profile wheel system device, comprising a connecting shaft, a rocking seat and a supporting wheel assembly, wherein the connecting shaft is connected to the frame, and the rocking seat is rotatably connected to the connecting shaft; any supporting wheel assembly comprises two supporting wheels, and the two supporting wheels are arranged on opposite sides of the rocking seat along a first predetermined direction, and any supporting wheel is rotatably connected to the rocking seat.

[0005] In the above technical solution, further, any supporting wheel assembly is provided with an axle and a bearing, the rocking seat forms an installation cavity penetrating through its two sides along the first predetermined direction, the axle and the bearing are installed in the installation cavity, the axle is installed in the inner ring of the bearing, and the axle is fixedly connected with the inner ring of the bearing, the two ends of the axle extend to the outside of the two sides of the rocking seat, and are fixedly connected with the two supporting wheels in the supporting wheel assembly;

[0006] The rocking seat is fixedly connected with the outer ring of the bearing, so that the axle rotates with the supporting wheel relative to the rocking seat; the rocking seat is also formed with an axle hole, and the connecting shaft is rotatably installed in the axle hole.

[0007] In any of the above technical solutions, further, the outer wall of the axle is formed with an axle shoulder, and the track-type traveling profile wheel system device further comprises an elastic retainer ring installed in the installation cavity, and along the first predetermined direction, the two sides of the bearing abut against the axle shoulder and the elastic retainer ring respectively.

[0008] In any of the above technical solutions, further, any of the wheel assemblies is provided with an oil seal, the oil seal is sleeved on the axle, and the oil seal is installed in the installation cavity.

[0009] In any of the above technical solutions, further, the wheel assembly is provided with a plurality of bearings, and the bearings are sequentially and spacedly arranged along the first preset direction.

[0010] The number of the oil seals is two, and the oil seals are arranged at two ends of the installation cavity along the first preset direction.

[0011] In any of the above technical solutions, further, the number of the wheel assemblies is two, and the wheel assemblies are sequentially and spacedly arranged along a second preset direction; the number of the installation cavities is two, and the installation cavities are sequentially and spacedly arranged along the second preset direction, and the two installation cavities correspond to the two wheel assemblies one by one.

[0012] In any of the above technical solutions, further, the rocker seat comprises a body, a connecting arm and an installation portion; the number of the installation portions is two, and the installation portions are arranged at opposite sides of the body along the second preset direction; the number of the connecting arms is two, and the opposite sides of the body are connected to the two installation portions through the two connecting arms corresponding to the installation portions; any of the installation portions is formed with the installation cavity penetrating through the two sides of the installation portion along the first preset direction.

[0013] In any of the above technical solutions, further, the track-type running profiling wheel system further comprises a guide rail, and along the height direction of the rocker seat, the guide rail is arranged below the rocker seat and is fixedly connected to the rocker seat.

[0014] In any of the above technical solutions, further, the guide rail comprises a main body and two extension portions, and the two extension portions are arranged at two sides of the main body along the second preset direction and are connected to the main body to form a U-shaped structure with an opening facing the rocker seat; the two extension portions are located at opposite outer sides of the rocker seat and are connected to two side portions of the rocker seat, respectively.

[0015] In any of the above technical solutions, further, the main body is formed with an installation protrusion arranged towards the rocker seat, the rocker seat is formed with an installation hole, the installation protrusion is inserted into the installation hole, and the installation protrusion and the rocker seat are detachably connected through a first fastening member.

[0016] In any of the above technical solutions, further, the extension portion and the rocker seat are detachably connected through a second fastening member.

[0017] Compared with the prior art, the application has the beneficial effects that:

[0018] The structure composed of the carrier roller and the rocking seat can rotate relative to the connecting shaft and the frame, that is, the carrier roller can float forward and backward within a certain range, so that the carrier roller can follow the ground when in use, thereby filtering out the rigid transmission vibration, and thus helping to improve the driving comfort. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0020] Figure 1 An exploded view of the track-type traveling profiled wheel train device provided by the embodiment of the application;

[0021] Figure 2 An assembly partial cross-sectional view of the track-type traveling profiled wheel train device provided by the embodiment of the application;

[0022] Figure 3 An assembly view of the track-type traveling profiled wheel train device provided by the embodiment of the application;

[0023] Figure 4 Another assembly view of the track-type traveling profiled wheel train device provided by the embodiment of the application.

[0024] Reference signs:

[0025] 1-connecting shaft, 2-rocking seat, 21-body, 211-shaft hole, 22-connecting arm, 23-mounting part, 231-mounting cavity, 3-carrier roller assembly, 31-carrier roller, 4-wheel shaft, 41-shaft shoulder, 5-bearing, 6-oil seal, 7-guide rail, 71-main body, 711-mounting protrusion, 72-extension, 8-first fastening member, 9-second fastening member, 10-elastic retainer ring. DETAILED DESCRIPTION

[0026] The technical solutions of the application will be described in detail below with reference to the drawings. Obviously, the described embodiments are some embodiments of the application, not all embodiments.

[0027] The components of the application embodiments, which are described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as provided in the figures, is not intended to limit the scope of the application, but is merely representative of selected embodiments of the application.

[0028] Based on the embodiments herein, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0029] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0030] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0031] The following refers to Figures 1 to 4 A track walking profiling wheel train device according to some embodiments of the application is described.

[0032] Referring to Figures 1 to 4 As shown in the figure, the embodiments of the application provide a track walking profiling wheel train device, comprising a connecting shaft 1, a rocking seat 2 and a supporting wheel assembly 3; wherein the connecting shaft 1 is used to be connected to the frame, and the rocking seat 2 is rotatably connected with the connecting shaft 1; any supporting wheel assembly 3 comprises two supporting wheels 31, and the two supporting wheels 31 are respectively arranged on the opposite sides of the rocking seat 2 along a first predetermined direction a, and any supporting wheel 31 is rotatably connected with the rocking seat 2.

[0033] According to the above-described structure, the structure composed of the carrier wheels 31 and the rocking seat 2 can rotate relative to the connecting shaft 1 and the frame, that is, the carrier wheels 31 can float forward and backward within a certain range, and the carrier wheels 31 can follow the ground when in use, thereby filtering out the rigid transmission vibration, and thereby helping to improve the driving comfort.

[0034] Further preferably, the connecting shaft 1 is fixedly connected with the frame, but is not limited thereto, and the connecting shaft 1 can also be rotatably connected with the frame, which is selected according to actual needs.

[0035] In this embodiment, preferably, as shown in Figure 1 and Figure 2 , any carrier wheel assembly 3 is provided with an axle 4 and a bearing 5, the rocking seat 2 is formed with a mounting cavity 231 penetrating through both sides thereof along a first preset direction a, the axle 4 and the bearing 5 are both mounted in the mounting cavity 231, the axle 4 is mounted in an inner ring of the bearing 5, the axle 4 is fixedly connected with the inner ring of the bearing 5, both ends of the axle 4 extend to the outside of both sides of the rocking seat 2, and are fixedly connected with the two carrier wheels 31 in the carrier wheel assembly 3.

[0036] The rocking seat 2 is fixedly connected with an outer ring of the bearing 5, so that the axle 4 rotates relative to the rocking seat 2 together with the carrier wheels 31; the rocking seat 2 is also formed with a shaft hole 211, and the connecting shaft 1 is rotatably mounted in the shaft hole 211. It can be seen that the two carrier wheels 31 driven by the axle 4 can freely rotate relative to the rocking seat 2, that is, the movement of the carrier wheels 31 is not affected, meeting the use requirements, and the bearing 5 also plays a role in reducing friction and supporting the axle 4.

[0037] According to the above-described structure, the bearing 5 and the like structure are arranged in the rocking seat 2 in the present application, and are independently arranged with the carrier wheels 31, which is more convenient to replace or maintain than the structure in which the two are integrated together, and especially when the bearings 5 provided for the two carrier wheels 31 in each carrier wheel assembly 3 are integrated in the rocking seats 2 of the two carrier wheels 31 and are close to each other, the supporting effect is better, and the overall structure is more stable. If the bearing 5 is integrated in the carrier wheel 31, two bearings 5 need to be provided for each carrier wheel 31 in order to ensure the stability of the structure of the carrier wheel 31, so that four bearings 5 need to be provided for each carrier wheel assembly 3, which increases the number of bearings 5, is not convenient for assembly, increases the cost, and increases the overall weight of the carrier wheel assembly 3.

[0038] Further preferably, the carrier wheels 31 can be fixed on the axle 4 by nuts, but are not limited thereto.

[0039] In this embodiment, preferably, as shown in Figure 2As shown, the outer wall of the axle 4 is formed with an axle shoulder 41, and the caterpillar walking profiling wheel system further comprises an elastic retainer ring 10 installed in the installation cavity 231, and the two sides of the bearing 5 abut against the axle shoulder 41 and the elastic retainer ring 10 along the first preset direction a.

[0040] According to the above-described structure, the installation cavity 231 provides a mounting position for the axle 4 and the elastic retainer ring 10, and the elastic retainer ring 10 and the axle shoulder 41 limit the two ends of the bearing 5, avoiding the movement of the bearing 5 along the first preset direction a, i.e. the length direction of the axle 4, so that the overall structure is more stable and reliable.

[0041] In this embodiment, preferably, as shown in Figure 1 and Figure 2 Any one of the supporting wheel assemblies 3 is provided with an oil seal 6, which is sleeved on the axle 4 and installed in the installation cavity 231.

[0042] According to the above-described structure, the oil seal 6 mainly plays a sealing role, avoiding the problem of oil leakage, so that the device is safer and more reliable during use.

[0043] It should be noted that the device can also not be provided with an oil seal 6, which is designed according to actual needs.

[0044] In this embodiment, preferably, as shown in Figure 2 The supporting wheel assembly 3 is provided with a plurality of bearings 5, and the plurality of bearings 5 are sequentially and spacedly arranged along the first preset direction a; the number of oil seals 6 is two, and they are arranged at the two ends of the installation cavity 231 along the first preset direction a.

[0045] According to the above-described structure, two bearings 5 are provided in this application, which correspond to the two ends of the axle 4, i.e. correspond to the two supporting wheels 31, which can improve the supporting and reduce the friction, so that the overall structure is more stable, and the oil seals 6 are arranged at the two ends of the installation cavity 231, which meets the sealing requirements and has a small number and low cost.

[0046] It should be noted that the number of bearings 5 can also be more than two, such as three or four, and they are sequentially and spacedly arranged along the length direction of the axle 4.

[0047] In this embodiment, preferably, as shown in Figure 1 and Figure 2 The number of supporting wheel assemblies 3 is two, and they are sequentially and spacedly arranged along the second preset direction b; the number of installation cavities 231 is two, and they are sequentially and spacedly arranged along the second preset direction b, and the two installation cavities 231 correspond to the two supporting wheel assemblies 3 one by one.

[0048] According to the above description, the two supporting wheel assemblies 3 are arranged, that is, a total of four supporting wheels 31 are arranged, which are symmetrical on the left and right sides to ensure the stability and reliability of the whole structure during floating.

[0049] In this embodiment, preferably, as shown in Figure 1 and Figure 2 , the rocking seat 2 comprises a body 21, a connecting arm 22, and a mounting portion 23; the mounting portion 23 is two in number and is arranged on the opposite sides of the body 21 along the second preset direction b; the connecting arm 22 is two in number, and the two mounting portions 23 are connected to the opposite sides of the body 21 through the one-to-one corresponding two connecting arms 22; and any mounting portion 23 is formed with a mounting cavity 231 penetrating through the two sides thereof along the first preset direction a.

[0050] According to the above description, the two mounting portions 23 are connected to the body 21 through the connecting arm 22, which is more convenient for left and right swinging, that is, left and right floating, and improves the damping effect.

[0051] Of course, not only limited to this, the structure of the rocking seat 2 can also be designed according to actual needs, especially when the number of supporting wheel assemblies 3 is more than two, the number of wheel shafts 4 is also more than two, and a plurality of mounting portions 23 are correspondingly arranged, and the plurality of mounting portions 23, the plurality of wheel shafts 4, and the plurality of supporting wheel assemblies 3 are one-to-one corresponding, so that the mounting portions 23 can be reasonably arranged on the two sides of the body 21, and the connecting arms 22 can be used to connect the adjacent two mounting portions 23 and the mounting portion 23 and the body 21.

[0052] In this embodiment, preferably, as shown in Figure 1 and Figure 3 , the track-type walking profiled wheel system further comprises a guide rail 7, and the guide rail 7 is arranged below the rocking seat 2 along the height direction of the rocking seat 2 and is fixedly connected with the rocking seat 2.

[0053] According to the above description, the guide rail 7 can cooperate with the track teeth to prevent the track from deviating, and the guide rail 7 is fixedly connected with the rocking seat 2 and rotates relative to the connecting shaft 1, that is, floats.

[0054] In this embodiment, preferably, as shown in Figure 1 , the guide rail 7 comprises a main body 71 and two extension portions 72, and the two extension portions 72 are arranged on the two sides of the main body 71 along the second preset direction b and are connected with the main body 71 to form a U-shaped structure with the opening facing the rocking seat 2; the two extension portions 72 are located on the opposite outer sides of the rocking seat 2 and are connected with the two side portions of the rocking seat 2, respectively.

[0055] According to the above-described structure, the guide rail 7 is arranged in a U shape, the space inside the U shape can effectively avoid the shaking seat 2, and the two sides of the U shape can extend to the two sides of the shaking seat 2, thereby facilitating assembly with the two sides of the shaking seat 2, and the assembled structure has higher integration and is more stable. Of course, the structure of the guide rail 7 is not limited to this, and can be designed according to actual needs.

[0056] In this embodiment, preferably, as shown in Figure 1 and Figure 4 , the main body 71 is formed with a mounting protrusion 711 arranged towards the shaking seat 2, the shaking seat 2 is formed with a mounting hole, the mounting protrusion 711 is inserted into the mounting hole, and the mounting protrusion 711 and the shaking seat 2 are detachably connected by the first fastening member 8 such as a screw or a bolt.

[0057] According to the above-described structure, the mounting protrusion 711 of the main body 71 part of the guide rail 7 is detachably connected with the shaking seat 2 by the first fastening member 8 such as a screw or a bolt, which belongs to a detachable connection mode, facilitating later disassembly, maintenance or replacement operations, and improving the convenience of operation.

[0058] In this embodiment, preferably, as shown in Figure 1 , the extension 72 is detachably connected with the shaking seat 2 by the second fastening member 9 such as a screw or a bolt.

[0059] According to the above-described structure, the extension 72 of the guide rail 7 is detachably connected with the shaking seat 2 by the second fastening member 9 such as a screw or a bolt, which facilitates later disassembly, maintenance or replacement operations, and improves the convenience of operation.

[0060] Of course, it is not limited to this, and the guide rail 7 can also be connected with the shaking seat 2 by a non-detachable connection mode such as welding, which is selected according to actual needs.

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A contour-following wheel system for tracked walking, characterized in that, The application relates to a caterpillar walking profiled wheel system device, which comprises a connecting shaft, a rocking seat and a supporting wheel assembly; the connecting shaft is connected to a frame, and the rocking seat is rotationally connected to the connecting shaft; each supporting wheel assembly comprises two supporting wheels, and the two supporting wheels are arranged on opposite sides of the rocking seat along a first preset direction and are rotationally connected to the rocking seat. Each supporting wheel assembly is provided with an axle and a bearing, the rocking seat is formed with an installation cavity penetrating through both sides of the rocking seat along the first preset direction, the axle and the bearing are installed in the installation cavity, the axle is installed in an inner ring of the bearing, and the axle is fixedly connected to the inner ring of the bearing, both ends of the axle extend to the outside of both sides of the rocking seat, and the axle is fixedly connected to the two supporting wheels in the supporting wheel assembly.

2. The caterpillar traveling profiling wheel train device according to claim 1, characterized in that, The rocking seat is fixedly connected to an outer ring of the bearing, so that the axle and the supporting wheels rotate relative to the rocking seat; the rocking seat is further formed with an axle hole, and the connecting shaft is rotationally installed in the axle hole. An outer wall of the axle is formed with an axle shoulder, the caterpillar walking profiled wheel system device further comprises an elastic retainer ring installed in the installation cavity, and both sides of the bearing abut against the axle shoulder and the elastic retainer ring along the first preset direction.

3. The caterpillar traveling profiling wheel train device according to claim 2, characterized in that, Each supporting wheel assembly is provided with an oil seal, the oil seal is sleeved on the axle, and the oil seal is installed in the installation cavity.

4. The caterpillar traveling profiling wheel train device according to claim 3, characterized in that The supporting wheel assembly is provided with a plurality of bearings, and the bearings are sequentially and spacedly arranged along the first preset direction.

5. The caterpillar traveling profiling wheel train device according to claim 4, characterized in that The number of the oil seals is two, and the oil seals are arranged at both ends of the installation cavity along the first preset direction. The number of the supporting wheel assemblies is two, and the supporting wheel assemblies are sequentially and spacedly arranged along a second preset direction; the number of the installation cavities is two, and the installation cavities are sequentially and spacedly arranged along the second preset direction, and the two installation cavities correspond to the two supporting wheel assemblies one by one.

6. The caterpillar traveling profiling wheel train device according to claim 2, characterized in that, The rocking seat comprises a body, connecting arms and installation parts; the number of the installation parts is two, and the installation parts are arranged on opposite sides of the body along the second preset direction; the number of the connecting arms is two, and the opposite sides of the body are connected to the two installation parts through the two connecting arms corresponding to the installation parts; each installation part is formed with the installation cavity penetrating through both sides of the installation part along the first preset direction.

7. The caterpillar traveling profiling wheel train device according to claim 6, characterized in that The caterpillar walking profiled wheel system device further comprises a guide rail, and the guide rail is arranged below the rocking seat along a height direction of the rocking seat and is fixedly connected to the rocking seat.

8. The caterpillar traveling profiling wheel train device according to claim 7, characterized in that The guide rail comprises a main body and two extension parts, and the two extension parts are arranged on both sides of the main body along the second preset direction and are connected to the main body to form a U-shaped structure with an opening facing the rocking seat; the two extension parts are located on opposite outer sides of the rocking seat and are connected to both side parts of the rocking seat.

9. The caterpillar traveling profiling wheel train device according to claim 8, characterized in that ​ 10. The caterpillar traveling profiling wheel train device according to claim 9, characterized in that The main body is formed with a mounting protrusion arranged towards the rocking seat, the rocking seat is formed with a mounting hole, the mounting protrusion is inserted into the mounting hole, and the mounting protrusion and the rocking seat are detachably connected through a first fastening member; and / or The extension and the rocking seat are detachably connected through a second fastening member.

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