Guide wheel assembly of crawler-type working machine and crawler-type working machine

Abstract

The utility model relates to the technical field of operation machinery, and discloses a crawler-type operation machinery guide wheel assembly and crawler-type operation machinery, and the crawler-type operation machinery guide wheel assembly mainly comprises a wheel body, a wheel shaft and a pair of supports. Filler is integrally formed in the wheel body, an axial through hole is formed in the wheel body, and an oil storage groove is formed in the middle area of the axial through hole along the inner circumferential wall of the wheel body. The wheel shaft penetrates through the axial through hole; the pair of supports are arranged at the two opposite ends of the wheel shaft in a sleeving mode correspondingly and connected with the two opposite sides of the wheel body correspondingly, and the pair of supports are suitable for being installed on a walking frame of the crawler-type operation machine correspondingly. A gap is reserved at the joint of the wheel body and each support and is sealed through a sealing piece, an oil guide channel is further arranged in the wheel body, and the oil storage groove is communicated with the gaps through the oil guide channel. According to the guide wheel assembly, the filler is integrally formed in the wheel body, the filler can be used for absorbing impact and forming structural balance weight, the structural strength of the wheel body is improved, and therefore the service life of the guide wheel assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to a guide wheel assembly of a crawler type operating machinery and a crawler type operating machinery. Background Art

[0002] The guide wheel assembly is used to guide the crawler track of the crawler machine to prevent the crawler track from running off the track. The guide wheels of some crawler machines can also be used as supporting wheels to increase the contact area of ​​the crawler track with the ground and reduce the specific pressure.

[0003] The existing guide wheel assembly is generally composed of a wheel body, a wheel axle, a support, etc. Since the crawler machine needs to bear the load for a long time during the walking process, and often collides with stones and other debris in harsh environments, the wheel body is prone to wear, deformation, and even cracking, which makes the guide wheel assembly easy to damage and has a short service life. Utility Model Content

[0004] In view of this, the utility model provides a crawler operating machinery guide wheel assembly and a crawler operating machinery to solve the problem that the wheel body of the guide wheel assembly is easily worn, deformed, or even cracked, resulting in easy damage to the guide wheel assembly and a short service life.

[0005] In a first aspect, the utility model provides a guide wheel assembly of a crawler-type working machine, comprising:

[0006] A wheel body, wherein a filler is integrally formed inside, the wheel body is provided with an axial through hole, and an oil storage groove is provided in the middle area of ​​the axial through hole along the inner peripheral wall of the wheel body;

[0007] A wheel axle, passing through the axial through hole;

[0008] A pair of supports, respectively sleeved on opposite ends of the wheel axle and respectively connected to opposite sides of the wheel body, the pair of supports being suitable for being respectively installed on the walking frame of the crawler type working machine;

[0009] A gap is left at the connection between the wheel body and each of the supports and is sealed by a sealing member. An oil guide channel is also provided in the wheel body, and the oil storage tank is connected to the gap through the oil guide channel.

[0010] Beneficial effects: The wheel body provided by the utility model has a filler integrally formed inside, which can absorb impacts and bear loads, thereby improving the structural strength of the wheel body, adapting to harsh environments, and increasing the service life of the guide wheel assembly. The weight of the filler can help the guide wheel assembly form a chassis counterweight structure for crawler operating machinery, which is beneficial for maintaining balance. The wheel body is sleeved on the axle and can rotate relative to the axle, and a pair of supports are used to support the axle. In addition, an oil storage tank is provided in the wheel body, and a gap is left at the connection between the wheel body and the support. The oil provided by the oil storage tank can be used to fill the gap between the wheel body and the support, so as to avoid damage between the wheel body and the support due to mutual wear when the wheel body rotates, thereby further increasing the service life of the guide wheel assembly.

[0011] In an optional embodiment, a sealing assembly is further included, wherein the sealing assembly is installed between the wheel body and the wheel axle, and between the wheel body and a pair of the supports.

[0012] Beneficial effect: The sealing assembly is used to seal the connection between the wheel body and the axle and the connection between the wheel body and a pair of supports. On the one hand, it can play a role of sealing protection to avoid oil leakage in the oil storage tank. On the other hand, it can reduce the mutual wear between the wheel body, the axle and the supports.

[0013] In an optional embodiment, the sealing assembly includes a pair of sealing sleeves, which are respectively arranged on opposite sides of the oil storage tank, and each of the sealing sleeves is provided with a first sealing portion and a second sealing portion that are connected to each other, the first sealing portion is arranged between the support and the wheel body, and the second sealing portion is sleeved outside the wheel axle and arranged between the wheel axle and the wheel body.

[0014] Beneficial effects: A pair of sealing sleeves are respectively arranged on opposite sides of the oil storage tank to provide sealing protection and prevent oil leakage. Each sealing sleeve is provided with a first sealing portion and a second sealing portion connected to each other. The wheel body and the support are sealed and connected by the first sealing portion of the sealing sleeve, and the wheel body and the wheel shaft are sealed and connected by the second sealing portion of the sealing sleeve. Only a pair of sealing sleeves are needed to realize the sealed connection of the wheel body, the wheel shaft and a pair of supports, which has a simple structure and is convenient for installation and use.

[0015] In an optional embodiment, the wheel axle is passed through the surface of the wheel body and an oil guide groove is axially opened, the oil guide groove is connected to the oil storage tank, and the second sealing part is sleeved outside the oil guide groove and an oil gap is left between the second sealing part and the oil guide groove.

[0016] Beneficial effect: Since the wheel axle is provided with an oil guide groove, which is connected to the oil storage tank, the wheel axle can guide the oil in the oil storage tank to between the wheel axle and the second sealing part through the oil guide groove, thereby achieving the goal of sealing the oil guide groove with the second sealing part while allowing the oil to fill the oil guide groove, thereby reducing the wear between the wheel axle and the second sealing part.

[0017] In an optional implementation, the gap is also sealedly connected to the first sealing portion.

[0018] Beneficial effect: the gap at the connection between the wheel body and the support is also sealed with the first sealing part, and the first sealing part can be used to seal the gap to prevent oil from leaking from the gap at the connection between the wheel body and the support.

[0019] In an optional embodiment, one of the supports is further provided with an oil inlet passage communicating with the gap, and an oil plug is provided at the oil inlet port of the oil inlet passage.

[0020] Beneficial effect: The oil inlet passage on the support can be used to replenish the oil tank. An oil plug is provided at the oil inlet port of the oil inlet passage to prevent oil from leaking from the oil inlet port of the oil inlet passage.

[0021] In an optional embodiment, a pair of sealing rings is further included, and the pair of sealing rings are respectively sleeved on the connection between the wheel axle and the pair of supports.

[0022] Beneficial effects: The sealing ring is arranged between the wheel axle and the support, which can play the role of radial sealing of the shaft end of the wheel axle, thereby reducing the mutual wear between the wheel axle and the support. The sealing ring has a long working life, can automatically compensate after wear, and is also conducive to reducing the cost of use.

[0023] In an optional embodiment, mounting holes are respectively opened at opposite ends of the wheel axle along its radial direction, and a pair of the supports are respectively connected to the wheel axle through fasteners passing through the mounting holes.

[0024] Beneficial effects: The fasteners are respectively passed through the mounting holes of the support and the axle to fix the support and the axle, the structure is stable, the fastening is strong, and the installation and disassembly are convenient.

[0025] In an optional embodiment, the wheel body is integrally cast, and the filler is casting sand.

[0026] Beneficial effects: The wheel body is cast in one piece, and casting sand is used to fill the wheel body during the casting stage to form a solid structure, which can significantly improve the compression and impact resistance of the wheel body. The casting sand filling can also help the wheel body dissipate heat and prevent high-temperature oil leakage.

[0027] In a second aspect, the utility model further provides a crawler type working machine, comprising:

[0028] Crawler walking device, equipped with a walking frame;

[0029] In the above-mentioned guide wheel assembly of the crawler working machine, a pair of the supports are respectively installed on the walking frame.

[0030] Beneficial effects: Because the crawler operating machinery includes the crawler operating machinery guide wheel assembly, it has the same effect as the crawler operating machinery guide wheel assembly, that is, a filler is integrally formed inside the wheel body, and the filler can be used to absorb impact and bear load, thereby improving the structural strength of the wheel body, thereby adapting to harsh environments and improving the service life of the guide wheel assembly. The weight of the filler can help the guide wheel assembly to form a chassis counterweight structure for the crawler operating machinery, which is conducive to maintaining balance. The wheel body is sleeved on the wheel axle and can rotate relative to the wheel axle, and a pair of supports are used to support the wheel axle. In addition, an oil storage tank is provided in the wheel body, and a gap is left at the connection between the wheel body and the support. The oil provided by the oil storage tank can be used to fill the gap between the wheel body and the support, so as to avoid damage between the wheel body and the support due to mutual wear when the wheel body rotates, thereby further improving the service life of the guide wheel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 The present invention is a schematic structural diagram of a guide wheel assembly of a crawler working machine according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Wheel body; 2. Filler; 3. Oil storage tank; 4. Wheel axle; 401. Oil guide groove; 402. Mounting hole; 5. Support; 6. Seal; 7. Oil guide channel; 8. Sealing sleeve; 801. First sealing part; 802. Second sealing part; 9. Oil inlet channel; 10. Oil plug; 11. Sealing ring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0036] In view of the problem that the wheel body of the existing guide wheel assembly is prone to wear, deformation, or even cracking in harsh environments, resulting in the guide wheel assembly being easily damaged and having a short service life, the embodiment of the utility model has a filler integrally formed inside the wheel body, which can absorb impact and form a structural counterweight, thereby improving the structural strength of the wheel body and thus improving the service life of the guide wheel assembly.

[0037] Combine the following Figure 1 , describing an embodiment of the utility model.

[0038] According to an embodiment of the present utility model, on the one hand, as Figure 1 As shown, a guide wheel assembly of a crawler working machine is provided, which mainly includes: a wheel body 1, a wheel axle 4 and a pair of supports 5. A filler 2 is integrally formed inside the wheel body 1. The wheel body 1 is provided with an axial through hole. An oil storage tank 3 is provided along the inner circumferential wall of the wheel body 1 in the middle area of ​​the axial through hole. The wheel axle 4 is passed through the axial through hole. A pair of supports 5 are respectively sleeved on opposite ends of the wheel axle 4, and are respectively connected to opposite sides of the wheel body 1. The pair of supports 5 are suitable for being respectively installed on the walking frame of the crawler working machine. A gap is left at the connection between the wheel body 1 and each support 5, and is sealed by a seal 6. An oil guide channel 7 is also provided in the wheel body 1, and the oil storage tank 3 is connected to the gap through the oil guide channel 7.

[0039] The wheel body 1 provided in the embodiment of the utility model has a filler 2 integrally formed inside. Compared with the traditional hollow wheel body structure, the filler 2 can be used to absorb impact and carry load, thereby improving the structural strength of the wheel body 1, thereby adapting to harsh environments and increasing the service life of the guide wheel assembly. The weight of the filler 2 can help the guide wheel assembly form a chassis counterweight structure of the crawler operating machine, which is conducive to maintaining balance.

[0040] Since the wheel body 1 and the support 5 are in active contact during operation, in order to ensure that the wheel body 1 can rotate normally. The wheel body 1 is movably sleeved on the wheel axle 4, and the wheel body 1 and the support 5 are movably connected. A pair of supports 5 are used to support the wheel axle 4. In addition, the embodiment of the utility model is provided with an oil storage tank 3 in the wheel body 1, and a gap is left at the connection between the wheel body 1 and the support 5. The oil provided by the oil storage tank 3 can be used to fill the gap between the wheel body 1 and the support 5, so as to avoid damage to the wheel body 1 and the support 5 due to mutual wear, and further improve the service life of the guide wheel assembly. By providing the oil storage tank 3, the total weight of the wheel body 1 can also be reduced.

[0041] Specifically, each support 5 is provided with a through hole and is sleeved on one end of the axle 4. The outer end surface of each support 5 is flush with one end surface of the axle 4. A pair of supports 5 are used to support the opposite ends of the axle 4 and are fixedly connected to the walking frame. In order to maintain the balance of the wheel body 1, Figure 1As shown, the middle area of ​​the axial through hole of the wheel body 1 is provided with an oil storage tank 3 along the inner peripheral wall of the wheel body 1, forming a symmetrical structure. Similarly, the wheel axle 4 is symmetrically distributed relative to the oil storage tank 3, and a pair of supports 5 are also symmetrically distributed relative to the oil storage tank 3.

[0042] Specifically, the oil storage tank 3 is used to store lubricating oil, and the oil is input into the connection between the wheel body 1 and the support 5 through the oil guide channel 7. Since there is lubricating oil in the gap, in order to prevent the lubricating oil from leaking from the gap, the gap is sealed by a seal 6. The seal 6 can be a floating oil seal.

[0043] It should be noted that the embodiment of the utility model does not limit the form of the movable connection between the wheel body 1 and the support 5, and any existing structure can be selected as needed.

[0044] In one embodiment, the guide wheel assembly of the crawler work machine further includes a sealing component, which is installed between the wheel body 1 and the wheel axle 4, and between the wheel body 1 and the pair of supports 5. The sealing component is used to seal the connection between the wheel body 1 and the wheel axle 4, and the connection between the wheel body 1 and the pair of supports 5, which can play a role of sealing protection to prevent oil leakage in the oil storage tank 3, and can reduce the mutual wear between the wheel body 1, the wheel axle 4 and the supports 5.

[0045] It should be noted that the embodiment of the present invention does not limit the sealing assembly, as long as the sealing assembly can seal the connection between the wheel body 1 and the axle 4 and the connection between the wheel body 1 and the pair of supports 5 .

[0046] In one embodiment, Figure 1 As shown, the sealing assembly includes a pair of sealing sleeves 8. The pair of sealing sleeves 8 are respectively arranged on opposite sides of the oil storage tank 3 to provide sealing protection and prevent oil leakage. Each sealing sleeve 8 is provided with a first sealing portion 801 and a second sealing portion 802 connected to each other. The first sealing portion 801 is arranged between the support 5 and the wheel body 1, and the second sealing portion 802 is sleeved outside the axle 4 and arranged between the axle 4 and the wheel body 1. Specifically, the sealing sleeve 8 can be a bushing. The wheel body 1 and the support 5 are sealed and connected by the first sealing portion 801 of the sealing sleeve 8, and the wheel body 1 and the axle 4 are sealed and connected by the second sealing portion 802 of the sealing sleeve 8. Only a pair of sealing sleeves 8 are needed to realize the sealed connection of the wheel body 1, the axle 4 and a pair of supports 5. The structure is simple and convenient to install and use.

[0047] Specifically, Figure 1 As shown, the two opposite ends of the first sealing part 801 are respectively pressed against the inner end surface of the support 5 and one end surface of the wheel body 1. The second sealing part 802 is movably sleeved on the outer periphery of the wheel axle 4. The wheel body 1 is sleeved on the outer periphery of the two second sealing parts 802, and one end of the second sealing part 802 extends to the oil storage tank 3.

[0048] In one embodiment, the surface of the wheel axle 4 passing through the wheel body 1 is provided with an oil guide groove 401 along the axial direction. The oil guide groove 401 is communicated with the oil storage tank 3, and the second sealing portion 802 is sleeved outside the oil guide groove 401, and an oil gap is left between the second sealing portion 802 and the oil guide groove 401. The wheel axle 4 can guide the oil in the oil storage tank 3 to between the wheel axle 4 and the second sealing portion 802 through the oil guide groove 401, so that the oil guide groove 401 is sealed by the second sealing portion 802, and the oil fills the oil guide groove 401, thereby reducing the wear between the wheel axle 4 and the second sealing portion 802.

[0049] In some other embodiments, the oil guide groove 401 can also be opened on the inner side of the second sealing portion 802, which can also reduce the wear between the axle 4 and the second sealing portion 802, and there is no need to process the axle 4, which is beneficial to improving the structural stability of the axle 4.

[0050] In one embodiment, the gap at the connection between the wheel body 1 and the support 5 is also sealed with the first sealing portion 801 , and the first sealing portion 801 can be used to seal the gap to prevent oil from leaking from the gap at the connection between the wheel body 1 and the support 5 .

[0051] In one embodiment, one of the supports 5 is further provided with an oil inlet passage 9 communicating with the gap. An oil plug 10 is provided at the oil inlet port of the oil inlet passage 9. The oil inlet passage 9 on the support 5 can be used to replenish the oil tank 3 with oil. The oil inlet port of the oil inlet passage 9 is provided with an oil plug 10 to prevent oil from leaking from the oil inlet port of the oil inlet passage 9.

[0052] It should be noted that the oil inlet passage 9 can be installed at any position of a pair of supports 5 as required. For example, the oil inlet passage 9 extends along the axial direction of the axle 4, and an oil inlet port is provided at the end face of the support 5 away from the wheel body 1.

[0053] Furthermore, in one embodiment, in order to facilitate the replenishment of oil, each support 5 may be provided with an oil inlet passage 9 .

[0054] In one embodiment, Figure 1 As shown, the guide wheel assembly of the crawler work machine also includes a pair of sealing rings 11. The pair of sealing rings 11 are respectively sleeved at the connection between the wheel shaft 4 and the pair of supports 5. The sealing ring 11 is arranged between the wheel shaft 4 and the support 5, which can play the role of radial sealing of the shaft end of the wheel shaft 4, thereby reducing the mutual wear between the wheel shaft 4 and the support 5. The sealing ring 11 has a long working life, can automatically compensate after wear, and is also conducive to reducing the use cost.

[0055] Specifically, in order to facilitate the installation of the sealing ring 11, the through hole of the support 5 can also be provided with an installation groove along the circumferential direction, and the sealing ring 11 can be directly sleeved on the axle 4 and located in the installation groove. The sealing ring 11 can be an O-type sealing ring 11. The O-type sealing ring 11 has a simple structure, low cost, self-sealing function, and good sealing effect.

[0056] In one embodiment, mounting holes 402 are respectively opened along the radial direction at opposite ends of the axle 4, and a pair of supports 5 are respectively connected to the axle 4 through fasteners passing through the mounting holes 402. The fasteners are respectively passed through the mounting holes 402 of the supports 5 and the axle 4 to achieve the fixation of the supports 5 and the axle 4, with a stable structure, strong fastening, and convenient installation and removal. Specifically, the fasteners can be cylindrical pins, and the mounting holes 402 can be selected to correspond to the pin holes.

[0057] Furthermore, in order to facilitate the replacement and maintenance of the axle 4 and the support 5, in one embodiment, the fasteners can also be selected as screws or bolts that are easy to disassemble. The mounting holes 402 are correspondingly selected as threaded holes, round holes, etc. In one possible implementation of the utility model, the fasteners can be M6 hexagonal flat head bolts.

[0058] It should be noted that the embodiment of the utility model does not limit the structure in which the wheel body 1 and the filler 2 are integrally formed.

[0059] In one embodiment, the wheel body 1 is formed as a whole at one time by a casting process, which can reduce the processing steps and reduce the manufacturing cost of the wheel body 1. The wheel body 1 has a cavity during the casting process. The filler 2 can be casting sand. During the casting stage, holes are reserved for the cavity to fill the casting sand into the cavity of the wheel body 1. Specifically, the manufacturing process of the wheel body 1 includes at least the steps of sand matching, core making, modeling, smelting, pouring, etc. After the cavity is filled with casting sand, it is necessary to remove the residual casting sand that is not filled on the wheel body 1 and clean the wheel body 1. Afterwards, the casting holes are sealed by welding with metal plates to seal the casting sand in the wheel body 1 to prevent the casting sand from leaking and to prevent foreign matter from entering the wheel body 1. After the wheel body 1 is filled with casting sand, it can also be machined, and finally the wheel body 1 is assembled with components such as the axle 4 and the support 5.

[0060] The wheel body 1 provided in the embodiment of the utility model is formed into a solid structure by filling casting sand, which can significantly improve the compression and impact resistance of the wheel body 1 compared with the traditional structure of directly casting the wheel body 1 into a solid structure. Filling the casting sand in the wheel body 1 also helps the wheel body 1 to dissipate heat and prevent high-temperature oil leakage.

[0061] In some other embodiments, other conventional dense fillers may be filled inside the wheel body 1. The specific configuration may be selected according to actual needs, and the embodiments of the present utility model do not impose too many restrictions on this.

[0062] According to an embodiment of the utility model, on the other hand, a crawler type working machine is provided, which mainly includes: a crawler walking device and a crawler type working machine guide wheel assembly. The crawler walking device is provided with a traveling frame. A pair of supports 5 are respectively installed on the traveling frame.

[0063] Because the crawler-type working machinery includes the crawler-type working machinery guide wheel assembly, it has the same effect as the crawler-type working machinery guide wheel assembly, that is, the filler 2 is integrally formed inside the wheel body 1. Compared with the traditional hollow wheel body structure, the filler 2 can be used to absorb impact and bear load, thereby improving the structural strength of the wheel body 1, so as to adapt to harsh environments and improve the service life of the guide wheel assembly. The weight of the filler 2 can help the guide wheel assembly to form a chassis counterweight structure of the crawler-type working machinery, which is conducive to maintaining balance. In addition, an oil storage tank 3 is provided in the wheel body 1, and a gap is left at the connection between the wheel body 1 and the support 5. The oil provided by the oil storage tank 3 can be used to fill the gap between the wheel body 1 and the support 5, so as to avoid damage to the wheel body 1 and the support 5 due to mutual wear, thereby further improving the service life of the guide wheel assembly. By providing the oil storage tank 3, the total weight of the wheel body 1 can also be reduced.

[0064] It should be noted that the embodiment of the utility model does not limit the installation form of the support 5 and the walking frame. The support 5 and the walking frame can be a fixed structure of a card connection, such as a card slot and a buckle connection for easy disassembly; or can be set as a fixed structure of a fastener, such as a fastening connection by a fastener.

[0065] For example, compared with the clamping type fixing structure, the fastener type fixing structure is more secure. In one possible implementation of the present application, a connecting hole is provided at the bottom of one side of each support 5. The fastener is passed through the connecting hole and the traveling frame to achieve a fixed connection between the support 5 and the traveling frame. Specifically, the connecting hole can be a threaded hole, and the fastener can be a screw. The support 5 can be selected to be fixed on the engine base of the traveling frame.

[0066] It is understandable that crawler working machinery includes but is not limited to excavators, pavers, scrapers and bulldozers.

[0067] In order to realize the basic functions of the crawler operating machinery, the crawler operating machinery in this embodiment may also include other necessary modules or components, such as a power module, a control module, etc. It should be noted that the other necessary modules or components included in the crawler operating machinery may be any suitable existing structure. In order to clearly and briefly describe the technical solution provided by this embodiment, the above-mentioned part will not be described in detail here, and the drawings in the specification are also simplified accordingly. However, it should be understood that the scope of the embodiments of the utility model is not limited by this.

[0068] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A guide wheel assembly of a crawler working machine, characterized in that: include: A wheel body (1) has a filler (2) integrally formed therein, the wheel body (1) is provided with an axial through hole, and an oil storage groove (3) is provided in the middle region of the axial through hole along the inner peripheral wall of the wheel body (1); A wheel axle (4) is inserted into the axial through hole; A pair of supports (5) are respectively sleeved on opposite ends of the wheel axle (4) and respectively connected to opposite sides of the wheel body (1); the pair of supports (5) are suitable for being respectively installed on the walking frame of the crawler working machine; A gap is left at the connection between the wheel body (1) and each of the supports (5), and is sealed by a seal (6). An oil guide channel (7) is also provided in the wheel body (1), and the oil storage tank (3) is connected to the gap through the oil guide channel (7).

2. The guide wheel assembly of the crawler working machine according to claim 1, characterized in that: It also comprises a sealing assembly, which is installed between the wheel body (1) and the wheel axle (4), and between the wheel body (1) and a pair of the supports (5).

3. The guide wheel assembly of the crawler working machine according to claim 2, characterized in that: The sealing assembly comprises a pair of sealing sleeves (8), the pair of sealing sleeves (8) being respectively arranged on opposite sides of the oil storage tank (3), each of the sealing sleeves (8) being provided with a first sealing portion (801) and a second sealing portion (802) connected to each other, the first sealing portion (801) being arranged between the support (5) and the wheel body (1), and the second sealing portion (802) being sleeved outside the wheel axle (4) and arranged between the wheel axle (4) and the wheel body (1).

4. The guide wheel assembly of the crawler working machine according to claim 3, characterized in that: The surface of the wheel axle (4) passing through the wheel body (1) is provided with an oil guide groove (401) along the axial direction, the oil guide groove (401) is connected with the oil storage tank (3), and the second sealing portion (802) is sleeved outside the oil guide groove (401) and an oil gap is left between the second sealing portion (802) and the oil guide groove (401).

5. The guide wheel assembly of the crawler working machine according to claim 3, characterized in that: The gap is also sealed to the first sealing portion (801).

6. The guide wheel assembly of a crawler work machine according to any one of claims 1 to 5, characterized in that: One of the supports (5) is also provided with an oil inlet passage (9) communicating with the gap, and an oil plug (10) is provided at the oil inlet port of the oil inlet passage (9).

7. The guide wheel assembly of the crawler work machine according to claim 1, characterized in that: It also comprises a pair of sealing rings (11), wherein the pair of sealing rings (11) are respectively sleeved on the connection between the wheel axle (4) and the pair of supports (5).

8. The guide wheel assembly of the crawler work machine according to claim 1, characterized in that: Mounting holes (402) are respectively provided at opposite ends of the wheel axle (4) along its radial direction, and a pair of the supports (5) are respectively connected to the wheel axle (4) through fasteners passing through the mounting holes (402).

9. The guide wheel assembly of the crawler work machine according to claim 1, characterized in that: The wheel body (1) is integrally formed by casting, and the filler (2) is casting sand.

10. A crawler type working machine, characterized in that: include: Crawler walking device with a traveling frame; The guide wheel assembly of the crawler working machine according to any one of claims 1 to 9, wherein a pair of the supports (5) are respectively mounted on the walking frame.

Images