Thrust wheel of rice harvester

Abstract

The invention discloses a thrust wheel of a rice harvester, and belongs to the technical field of agricultural harvesting instruments, a thrust wheel main body is supported by arranging a wheel shaft, the wheel shaft is supported by two bearings, the bearing type is adopted in the thrust wheel main body, so that the problem of high temperature resistance of the thrust wheel main body can be directly solved, and when the thrust wheel main body is subjected to oil sealing, the thrust wheel main body is prevented from being damaged. The threaded cylinder is sleeved with a threaded groove in the oil seal clamping ring, the pressing plate and the threaded cylinder are rotated, the threaded cylinder moves towards the interior of the oil seal clamping ring in the rotating process and extrudes the push plate, the push plate compresses the six telescopic rods, and when the air pressure in the fixed ends of the telescopic rods is increased, air enters the sealing air cushion ring through the air guide pipe, so that the sealing air cushion ring is sealed. The sealing air cushion ring expands to enable the outer protrusion to be embedded into the sealing embedding groove, the sealing effect of the connecting position of the sealing air cushion ring and the outer protrusion is greatly improved in an expansion extrusion mode, oil is injected into the thrust wheel body through the oil guide pipe, and therefore the problem that the thrust wheel leaks oil and loses efficacy can be solved, and the using effect is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural harvesting equipment, and in particular relates to a supporting wheel of a rice harvester. Background Art

[0002] Rice harvesters can be divided into crawler rice harvesters, walk-behind rice harvesters and small rice harvesters according to their structure. Crawler rice harvesters are suitable for areas with large plots of land; small rice harvesters have the characteristics of light weight, strong power, comfortable operation, low labor intensity and clean harvesting, and are suitable for small plots of land such as plains, hills, terraces and triangles.

[0003] Traditional harvesters are only designed with a structure similar to that of engineering machinery chassis. As the frequency of customer use increases, there is an urgent need to change the status quo. Therefore, there are two main approaches: one is the design of the wheels of the rice harvester chassis used under normal circumstances, and the other is the design of the wheels of the rice harvester chassis used under muddy and water working conditions.

[0004] The first structure is suitable for environments with more water. After operation, the internal temperature of the wheel is around 100°C. This structure is basically the same as the existing gear train structure. The process route is: clean the wheel body, shaft, end cover and other parts, and collect the appropriate number of copper sleeves, floating oil seals, sealing rings, screw plugs, retaining rings and other parts according to the requirements of the drawings. Press the copper sleeve into the wheel body, press the floating oil seal into the wheel body, press the floating oil seal into the end cover, insert the shaft into the wheel body, put the rubber ring on the shaft, and after installing the end cover, use the tooling equipment to tighten the end cover, hammer in the retaining ring to fix it, and assemble the other side in the same way. Tighten the screw plug at one end of the shaft and perform an airtightness test. After the test is passed, put the shaft end on the oiler, start the oiling equipment, evacuate the vacuum, inject an appropriate amount of oil, and then tighten the screw plug, and wait for painting and storage.

[0005] The second structure is that the bearing type is used inside the wheel body, which can directly solve the problem of high temperature resistance. If you want to prevent the entry of mud and water and damage the bearing, then the contact part of the wheel axle and the wheel body must adopt an interference fit method to block the entry of mud and water. Therefore, a new part designed as a mud and water oil seal is designed. The process route is: clean the wheel body and shaft, collect the bearings, retaining rings, mud and water oil seals and other parts from the warehouse, press a bearing into the support shaft in advance, and then press the shaft and bearing into one end of the wheel body, install the retaining ring, reverse the direction, press the bearing into the other end of the support shaft and wheel body, install the retaining ring, and then press in the mud and water oil seals respectively, and wait for painting and storage.

[0006] From the above, we know that different working conditions use different wheels. No matter what, solving the three points of heat dissipation, high temperature resistance and sealing are still the three most important elements. The above two structures can effectively solve such problems. However, both wheels have certain shortcomings, that is, they are based on one season of use as the basic service life, and cannot completely overcome the problem of oil leakage and failure. Therefore, there is still a need for new breakthroughs in the design of new structure of supporting wheels. In view of this, a rice harvester supporting wheel is proposed to solve the above problems. Summary of the invention

[0007] In order to overcome the above defects, the present invention provides a rice harvester track wheel, which solves the problem that the track wheel has a basic service life of one season and cannot completely overcome the problem of oil leakage and failure.

[0008] The objects of the present invention are:

[0009] The main body of the supporting roller is supported by setting a wheel axle, and the wheel axle is supported by two bearings. Since the main body of the supporting roller adopts a bearing type, the problem of high temperature resistance of the main body of the supporting roller can be directly solved;

[0010] The sealing effect of the joint is greatly improved by means of expansion and extrusion, and oil is then injected into the main body of the track roller through the oil guide pipe, thereby overcoming the problem of oil leakage and failure of the track roller and greatly improving the use effect;

[0011] The fixed end of the telescopic rod extracts gas from the sealing air cushion ring through the air guide pipe to restore the sealing air cushion ring to its initial state, so that the sealing air cushion ring is separated from the sealing embedding groove, and the sealing connection state of the connection can be released, which is convenient for cleaning the inside of the supporting wheel body or replacing parts;

[0012] The oil is transported to the middle of the wheel axle through the oil guide pipe, and the oil overflows through four oil outlet holes, ensuring the uniformity of oil distribution during the rotation of the supporting wheel body. The oil guide pipe runs through the wheel axle, so that the purpose of oiling the inside of the supporting wheel body can be achieved anytime and anywhere.

[0013] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rice harvester supporting wheel, comprising a supporting wheel body, a supporting wheel body is provided with a supporting mechanism, the supporting mechanism is externally connected to two bearings, the two bearings are clamped in the supporting wheel body, both sides of the supporting wheel body are provided with clamping mechanisms, one side of the clamping mechanism is connected to a sealing assembly, both sides of the supporting wheel body are provided with sealing embedding grooves, the sealing assembly is clamped in one of the sealing embedding grooves, a cavity is provided in the sealing assembly, six supporting assemblies are fixedly connected in the cavity, one side of the six supporting assemblies is fixedly connected to the same push plate, the push plate is overlapped with one side of the clamping mechanism, both sides of the supporting wheel body are provided with annular grooves, and the clamping mechanism is clamped in the annular grooves.

[0014] As a further solution of the present invention: a limiting ring is fixedly connected to one side of the bearing close to the clamping assembly, limiting grooves are provided on both sides of the supporting wheel body, and the limiting ring is clamped in one of the limiting grooves.

[0015] As a further solution of the present invention: the supporting mechanism includes a wheel axle, the wheel axle passes through the supporting mechanism and is arranged in two bearings, an oil guide pipe is provided in the wheel axle, and one end of the oil guide pipe passes through the wheel axle, four oil outlet holes are opened inside the wheel axle, and the other end of the oil guide pipe is connected to the four oil outlet holes.

[0016] As a further solution of the present invention: the clamping mechanism includes a pressure plate, a clamping ring is fixedly connected to one side of the pressure plate close to the supporting wheel body, the clamping ring is clamped in the annular groove, a threaded barrel is provided in the middle of the pressure plate, and one end of the threaded barrel is overlapped with the push plate.

[0017] As a further solution of the present invention: the sealing assembly includes an oil seal clamp ring, the oil seal clamp ring is arranged in the supporting wheel body, the cavity is arranged in the oil seal clamp ring, a sealing air cushion ring is arranged outside the oil seal clamp ring, the outside of the sealing air cushion ring is convex, and the sealing air cushion ring is clamped in the sealing embedding groove, and the sealing air cushion ring is connected to six support assemblies.

[0018] As a further solution of the present invention: a thread groove is provided on one side of the oil seal clamping ring close to the threaded barrel, the threaded barrel is threadedly connected in the thread groove, and the push plate is slidably connected in the thread groove.

[0019] As a further solution of the present invention: the support assembly includes a telescopic rod, one end of which is fixedly connected to the inner wall of the cavity, the other end of which is fixed to the push plate, and a spring is connected to the outer sleeve of the telescopic rod, and both ends of the spring are respectively fixedly connected to two sides of the cavity.

[0020] As a further solution of the present invention: the fixed end of the telescopic rod is connected with an air guide pipe, the air guide pipe is clamped in the oil seal clamp ring, and the air guide pipe passes through the oil seal clamp ring and is connected with the sealing air cushion ring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, a wheel axle is provided to support the main body of the supporting wheel, and the wheel axle is supported by two bearings. Since the interior of the supporting wheel main body adopts a bearing type, the problem of high temperature resistance of the supporting wheel main body can be directly solved. When the supporting wheel main body is oil-sealed, the pressure plate is inserted into the annular groove, the threaded cylinder is inserted into the threaded groove on the oil seal clamp ring, and the pressure plate and the threaded cylinder are rotated. The threaded cylinder moves toward the inside of the oil seal clamp ring during rotation and squeezes the push plate, and the push plate compresses the six telescopic rods. When the internal air pressure at the fixed end of the telescopic rod increases, the gas enters the sealing air cushion ring through the air guide pipe, and the sealing air cushion ring expands to make the external protrusion embed into the sealing embedding groove. The sealing effect of the connection is greatly improved by the expansion and extrusion, and then oil is injected into the supporting wheel main body through the oil guide pipe, thereby overcoming the problem of oil leakage and failure of the supporting wheel, and greatly improving the use effect.

[0023] 2. In the present invention, two clamping mechanisms are provided to seal the two sides of the supporting wheel body to prevent external mud and sand from entering the interior of the supporting wheel body and causing locking, thereby greatly improving its safety. The annular groove is used to limit the clamping plate to improve the installation stability. When the supporting wheel body is removed, the pressure plate is rotated in the opposite direction. During the process of the pressure plate driving the threaded barrel to rotate, the threaded barrel moves outward, and the push plate is supported by the elastic force of the spring. When the push plate moves outward, the telescopic rod is extended, and the fixed end of the telescopic rod draws gas from the sealing air cushion ring through the air guide pipe to restore the sealing air cushion ring to its initial state and disengage the sealing air cushion ring from the sealing embedding groove, so that the sealing connection state of the connection can be released, which is convenient for cleaning the interior of the supporting wheel body or replacing parts.

[0024] 3. In the present invention, the threaded barrel is limited by setting a threaded groove on the oil seal clamp ring, so that the threaded barrel is unlikely to slip during the rotation and movement, and the stability of the threaded barrel extruding the push plate is improved, thereby ensuring that the fixed end of the telescopic rod injects gas into the sealing air cushion ring through the air guide pipe, so that the sealing air cushion ring always remains in an expanded state, and the expansion state of the sealing air cushion ring can be adjusted by adjusting the position of the threaded barrel, thereby meeting the high-precision sealing requirements and being easy to operate. The limiting ring is limited by the limiting groove, so that the bearing is not likely to loosen in the supporting wheel body due to the stress generated by the wheel axle, thereby improving the use stability of the supporting wheel, and oil is transported to the middle of the wheel axle through the oil guide pipe, and the oil overflows through the four oil outlet holes, so that the uniformity of oil distribution is guaranteed during the rotation of the supporting wheel body, and the oil guide pipe runs through the wheel axle, so that the purpose of filling oil into the supporting wheel body can be achieved anytime and anywhere. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic structural diagram of a cross section of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the connection between the main body of the track roller and the supporting mechanism of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the support assembly of the present invention;

[0030] Figure 6 It is a schematic structural diagram of the sealing assembly of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the cross section of the main body of the supporting wheel of the present invention;

[0032] In the figure: 1. supporting wheel body; 2. supporting mechanism; 201. wheel axle; 202. oil guide pipe; 203. oil outlet hole; 3. bearing; 4. limiting ring; 5. limiting groove; 6. clamping mechanism; 601. pressing plate; 602. retaining ring; 603. threaded cylinder; 7. sealing assembly; 701. oil seal retaining ring; 702. sealing air cushion ring; 703. threaded groove; 8. cavity; 9. push plate; 10. supporting assembly; 101. telescopic rod; 102. spring; 103. air guide pipe; 11. annular groove; 12. sealing embedded groove. DETAILED DESCRIPTION

[0033] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0034] like Figure 1-7 As shown, the present invention provides a technical solution: a rice harvester supporting wheel, comprising a supporting wheel body 1, a supporting mechanism 2 is arranged in the supporting wheel body 1, the supporting mechanism 2 comprises a wheel axle 201, the wheel axle 201 passes through the supporting mechanism 2 and is arranged in two bearings 3, an oil guide pipe 202 is arranged in the wheel axle 201, and one end of the oil guide pipe 202 passes through the wheel axle 201, four oil outlet holes 203 are opened in the wheel axle 201, and the other end of the oil guide pipe 202 is communicated with the four oil outlet holes 203, through the mutual cooperation between the oil guide pipe 202 and the oil outlet holes 203, oil is transported to the middle of the wheel axle 201 through the oil guide pipe 202, and the oil overflows through the four oil outlet holes 203, during the rotation of the supporting wheel body 1, the uniformity of oil distribution is ensured, and the oil guide pipe 202 passes through the wheel axle 201, so as to realize the purpose of filling oil into the supporting wheel body 1 anytime and anywhere;

[0035] The supporting mechanism 2 is externally connected with two bearings 3. Since the bearings 3 are provided, the supporting roller body 1 is supported by setting the axle 201, and the axle 201 is supported by the two bearings 3. Since the supporting roller body 1 adopts the bearing 3 inside, the problem of high temperature resistance of the supporting roller body 1 can be directly solved.

[0036] The two bearings 3 are both clamped inside the supporting roller body 1, and the side of the bearing 3 close to the clamping assembly is fixedly connected to the limiting ring 4. The two sides of the supporting roller body 1 are provided with limiting grooves 5, and the limiting ring 4 is clamped in one of the limiting grooves 5. The limiting grooves 5 are used to limit the limiting ring 4, so that the bearing 3 is not easy to loosen in the supporting roller body 1 due to the stress generated by the wheel shaft 201, thereby improving the use stability of the supporting roller;

[0037] A clamping mechanism 6 is provided on both sides of the supporting roller body 1. The clamping mechanism 6 includes a pressing plate 601. A clamping ring 602 is fixedly connected to one side of the pressing plate 601 close to the supporting roller body 1. The clamping ring 602 is clamped in the annular groove 11. A threaded cylinder 603 is provided in the middle of the pressing plate 601. One end of the threaded cylinder 603 overlaps with the push plate 9. Since the threaded cylinder 603 is provided, the expansion state of the sealing air cushion ring 702 is adjusted by adjusting the position of the threaded cylinder 603, which meets the high-precision sealing requirements and is easy to operate. By setting two clamping mechanisms 6 to block both sides of the supporting roller body 1, external mud and sand are prevented from entering the interior of the supporting roller body 1 to cause locking, which greatly improves its safety. The clamping plate is limited in cooperation with the annular groove 11 to improve the installation stability.

[0038] One side of the clamping mechanism 6 is connected to the sealing assembly 7. Both sides of the supporting roller body 1 are provided with sealing embedding grooves 12. The sealing assembly 7 is clamped in one of the sealing embedding grooves 12. A cavity 8 is provided in the sealing assembly 7. The sealing assembly 7 includes an oil seal clamp 701. The oil seal clamp 701 is arranged in the supporting roller body 1. The cavity 8 is arranged in the oil seal clamp 701. A sealing air cushion ring 702 is arranged outside the oil seal clamp 701. The sealing air cushion ring 702 is convex outside and is clamped in the sealing embedding groove 12. The sealing air cushion ring 702 is connected with the six supporting assemblies 10.

[0039] A thread groove 703 is provided on one side of the oil seal clamp 701 close to the threaded barrel 603, the threaded barrel 603 is threadedly connected in the thread groove 703, and the push plate 9 is slidably connected in the thread groove 703. Since the thread groove 703 is provided, the threaded barrel 603 is limited by setting the thread groove 703 on the oil seal clamp 701, so that the threaded barrel 603 is unlikely to slip during the rotation and movement, thereby improving the stability of the threaded barrel 603 squeezing the push plate 9;

[0040] Six support assemblies 10 are fixedly connected in the cavity 8, and one side of the six support assemblies 10 is fixedly connected to the same push plate 9, which overlaps with one side of the clamping mechanism 6. Annular grooves 11 are provided on both sides of the supporting wheel body 1, and the clamping mechanism 6 is clamped in the annular groove 11. The support assembly 10 includes a telescopic rod 101, one end of the telescopic rod 101 is fixedly connected to the inner wall of the cavity 8, and the other end of the telescopic rod 101 is fixed to the push plate 9. A spring 102 is connected to the outer sleeve of the telescopic rod 101, and the two ends of the spring 102 are respectively fixedly connected to the two sides in the cavity 8. Because the spring 102 is provided, the push plate 9 is supported by the elastic force of the spring 102, so that the push plate 9 moves outward while the telescopic rod 101 is extended, and the fixed end of the telescopic rod 101 extracts gas from the sealing air cushion ring 702 through the air guide pipe 103, so that the sealing air cushion ring 702 returns to its initial state, and the sealing air cushion ring 702 is separated from the sealing embedding groove 12, so as to facilitate the release of the sealed connection state of the connection;

[0041] The fixed end of the telescopic rod 101 is connected to an air guide tube 103, which is clamped in the oil seal clamp ring 701, and the air guide tube 103 passes through the oil seal clamp ring 701 and is connected to the sealing air cushion ring 702. The six telescopic rods 101 are compressed through the mutual cooperation among the telescopic rod 101, the air guide tube 103 and the sealing air cushion ring 702. When the internal air pressure at the fixed end of the telescopic rod 101 increases, the gas enters the sealing air cushion ring 702 through the air guide tube 103, and the sealing air cushion ring 702 expands so that the external protrusion is embedded in the sealing embedding groove 12, and the sealing effect of the connection is greatly improved by the expansion and extrusion.

[0042] The working principle of the present invention is:

[0043] When in use, the supporting roller body 1 is supported by the wheel shaft 201, and the wheel shaft 201 is supported by two bearings 3. When the supporting roller body 1 is oil-sealed, the pressing plate 601 is inserted into the annular groove 11, the threaded cylinder 603 is inserted into the threaded groove 703 on the oil seal clamp 701, and the pressing plate 601 and the threaded cylinder 603 are rotated. During the rotation process, the threaded cylinder 603 moves toward the inside of the oil seal clamp 701 and squeezes the push plate 9, and the push plate 9 compresses the six telescopic rods 101;

[0044] When the internal air pressure of the fixed end of the telescopic rod 101 increases, the gas enters the sealing air cushion ring 702 through the air guide tube 103, and the sealing air cushion ring 702 expands so that the external protrusion is embedded in the sealing embedding groove 12, and the connection is sealed by expansion and extrusion;

[0045] The oil is transported to the middle of the wheel axle 201 through the oil guide pipe 202, and then overflows through the four oil outlet holes 203, ensuring the uniform distribution of the oil during the rotation of the supporting wheel body 1;

[0046] When the supporting wheel body 1 is removed, the pressure plate 601 is rotated in the opposite direction. During the process of the pressure plate 601 driving the threaded tube 603 to rotate, the threaded tube 603 moves outward, and the push plate 9 is supported by the elastic force of the spring 102, so that the push plate 9 moves outward and the telescopic rod 101 is extended. The fixed end of the telescopic rod 101 draws gas from the sealing air cushion ring 702 through the air guide pipe 103, so that the sealing air cushion ring 702 returns to its initial state and the sealing air cushion ring 702 is separated from the sealing embedding groove 12, so that the sealing connection state of the connection can be released.

[0047] From the above we know:

[0048] The roller body 1 is supported by the axle 201, and the axle 201 is supported by two bearings 3. Since the bearings 3 are used inside the roller body 1, the problem of high temperature resistance of the roller body 1 can be directly solved.

[0049] When the internal air pressure of the fixed end of the telescopic rod 101 increases, the gas enters the sealing air cushion ring 702 through the air guide pipe 103, and the sealing air cushion ring 702 expands so that the external protrusion is embedded in the sealing embedding groove 12, and the sealing effect of the connection is greatly improved by the expansion and extrusion, and then oil is injected into the supporting wheel body 1 through the oil guide pipe 202, thereby overcoming the problem of oil leakage and failure of the supporting wheel, and greatly improving the use effect;

[0050] The fixed end of the telescopic rod 101 extracts gas from the sealing air cushion ring 702 through the air guide pipe 103, so that the sealing air cushion ring 702 returns to its initial state, and the sealing air cushion ring 702 is separated from the sealing embedding groove 12, so that the sealing connection state of the connection can be released, which is convenient for cleaning the inside of the supporting wheel body 1 or replacing parts;

[0051] Oil is transported to the middle of the axle 201 through the oil guide pipe 202, and the oil then overflows through the four oil outlet holes 203, ensuring uniform distribution of the oil during the rotation of the supporting wheel body 1. The oil guide pipe 202 runs through the axle 201, so that the purpose of injecting oil into the supporting wheel body 1 can be achieved anytime and anywhere.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0053] The preferred implementation modes of the present application are described in detail above, but the present application is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present application.

Claims

1. A rice harvester track wheel, comprising a track wheel body (1), characterized in that: A supporting mechanism (2) is provided inside the supporting roller body (1), and two bearings (3) are externally connected to the supporting mechanism (2). Both bearings (3) are clamped inside the supporting roller body (1). Both sides of the supporting roller body (1) are provided with clamping mechanisms (6). One side of the clamping mechanism (6) is connected to a sealing assembly (7). Both sides of the supporting roller body (1) are provided with sealing embedding grooves (12). The sealing assembly (7) is clamped in one of the sealing embedding grooves (12). A cavity (8) is provided inside the sealing assembly (7). Six supporting assemblies (10) are fixedly connected inside the cavity (8). One side of the six supporting assemblies (10) is fixedly connected to the same push plate (9). The push plate (9) overlaps one side of the clamping mechanism (6). Both sides of the supporting roller body (1) are provided with annular grooves (11), and the clamping mechanism (6) is clamped in the annular grooves (11).

2. The rice harvester track wheel according to claim 1, characterized in that: A limiting ring (4) is fixedly connected to one side of the bearing (3) close to the clamping assembly, limiting grooves (5) are provided on both sides of the track roller body (1), and the limiting ring (4) is clamped in one of the limiting grooves (5).

3. The rice harvester track wheel according to claim 1, characterized in that: The support mechanism (2) comprises a wheel axle (201), the wheel axle (201) passes through the support mechanism (2) and is arranged in two bearings (3), an oil guide pipe (202) is arranged in the wheel axle (201), one end of the oil guide pipe (202) passes through the wheel axle (201), four oil outlet holes (203) are opened in the wheel axle (201), and the other end of the oil guide pipe (202) is connected to the four oil outlet holes (203).

4. The rice harvester track wheel according to claim 1, characterized in that: The clamping mechanism (6) comprises a pressing plate (601), a clamping ring (602) being fixedly connected to one side of the pressing plate (601) close to the supporting wheel body (1), the clamping ring (602) being clamped in the annular groove (11), a threaded barrel (603) being provided in the middle of the pressing plate (601), one end of the threaded barrel (603) being overlapped with the push plate (9).

5. The rice harvester track wheel according to claim 4, characterized in that: The sealing assembly (7) comprises an oil seal clamp (701), the oil seal clamp (701) being arranged in the supporting wheel body (1), the cavity (8) being arranged in the oil seal clamp (701), a sealing air cushion ring (702) being arranged outside the oil seal clamp (701), the sealing air cushion ring (702) being convex outside, and the sealing air cushion ring (702) being clamped in the sealing embedding groove (12), and the sealing air cushion ring (702) being connected with the six supporting assemblies (10).

6. The rice harvester track wheel according to claim 5, characterized in that: A thread groove (703) is provided on one side of the oil seal clamp (701) close to the threaded barrel (603), the threaded barrel (603) is threadedly connected in the thread groove (703), and the push plate (9) is slidably connected in the thread groove (703).

7. The rice harvester track wheel according to claim 5, characterized in that: The support assembly (10) comprises a telescopic rod (101), one end of the telescopic rod (101) is fixedly connected to the inner wall of the cavity (8), the other end of the telescopic rod (101) is fixed to the push plate (9), and a spring (102) is connected to the outer sleeve of the telescopic rod (101), and the two ends of the spring (102) are respectively fixedly connected to the two sides of the cavity (8).

8. The rice harvester track wheel according to claim 7, characterized in that: The fixed end of the telescopic rod (101) is connected to an air guide pipe (103), the air guide pipe (103) is clamped in the oil seal clamp ring (701), and the air guide pipe (103) passes through the oil seal clamp ring (701) and is connected to the sealing air cushion ring (702).

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