Double-beam type walking beam of crawler harvester

Abstract

The utility model discloses a crawler harvester double-beam type walking beam which comprises a chassis rack, a walking beam assembly, a wheel train assembly, a crawler belt and a guide rail, the walking beam assembly is installed below the chassis rack, the walking beam assembly comprises a walking beam, a connecting seat is arranged below the walking beam, an installing seat is arranged below the connecting seat, and the wheel train assembly is installed on the installing seat. The mounting seat is used for being connected with a guide rail, the track is sleeved outside the wheel train assembly, the guide rail plays a role in guiding the track, the wheel train assembly comprises at least two thrust wheels, the thrust wheels are rotationally assembled on the connecting seat, and the wheel train assembly is mounted on the walking beam assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double-beam type walking beam of a crawler harvester. BACKGROUND

[0002] With the progress of society and the development of technology, more and more modern agricultural machinery is put into agricultural production operation, and the degree of automation of agricultural production is higher and higher, and the crawler harvester has become one of the most common agricultural harvesting machines. The walking and support of the crawler harvester rely on the chassis, and the structure of the chassis determines the overall performance of the vehicle.

[0003] The working environment of the crawler harvester is usually full of stones, hard soil blocks, weeds and silt, which tests the passing performance of the chassis. The ordinary high-float chassis has excellent passing performance because the walking beam has high ground clearance, the balance wheel and the supporting wheel have large height difference, and the stability is strong when passing the ridge.

[0004] However, due to the common brake steering characteristics of the crawler harvester, the inner guide rail will be subjected to a large lateral impact force when steering. The installation height of the guide rail of the ordinary high-float chassis is too high, and the force on the guide rail becomes larger due to the lever effect when the side is stressed, which can easily cause irreversible damage to the guide rail. At the same time, due to the high ground clearance structure of the ordinary high-float walking beam, the height of the rear bridge beam root is too high, so that the angle of the rear bridge beam is large, the stress lever is long, and the overall strength is weak. The walking beam is an important part of the chassis of the crawler harvester, which bears the load of the chassis wheel system and is a load-bearing component supporting the chassis and the whole machine. Therefore, a simple, stable and reliable walking beam plays a crucial role in the overall performance of the chassis and the whole machine. Utility model content:

[0005] The utility model aims at solving the above technical deficiencies, and provides a double-beam type walking beam of a crawler harvester.

[0006] A double-beam type walking beam of a crawler harvester, comprising a chassis frame, a walking beam assembly, a wheel system assembly, a track and a guide rail, the walking beam assembly is installed below the chassis frame, the walking beam assembly comprises a walking beam, a connecting seat is arranged below the walking beam, an installation seat is arranged below the connecting seat, the installation seat is used for connecting the guide rail, the wheel system assembly is externally sleeved with the track, the guide rail guides the track, the wheel system assembly comprises at least two supporting wheels, the supporting wheels are rotatably assembled on the connecting seat, and the wheel system assembly is installed on the walking beam assembly.

[0007] Further, the number of connecting seats is two, which are installed in front of and behind the walking beam.

[0008] Further, an axle sleeve is fixed on the connecting seat, and the axle of the supporting wheel passes through the axle sleeve.

[0009] Further, the wheel train assembly further comprises a balancing wheel, which is rotatably arranged at the middle part of the walking beam and between the two connecting seats.

[0010] Further, the wheel train assembly further comprises a driving wheel, which is rotatably arranged at the front end of the chassis frame.

[0011] Further, the wheel train assembly further comprises a tensioning wheel, which is adjustably arranged at the rear end of the walking beam.

[0012] Further, the wheel train assembly further comprises a supporting wheel, which is arranged at the rear part of the middle part of the walking beam.

[0013] Beneficial effects: compared with the prior art, the utility model has the following advantages:

[0014] Compared with the single beam, the double-beam walking beam improves the strength of the walking beam and the load-bearing capacity; compared with the traditional walking beam, the double-beam walking beam has the high-float gap of the high-float walking beam, improves the passability and comfort of the chassis, improves the ability to pass the ridge, the height from the chassis to the track and the ground is higher, the resistance is small when passing the muddy field, the passability is high, and the load on the guide rail is smaller; compared with the previous high-float walking beam, the installation height of the guide rail is reduced while the working surface height of the guide rail is kept unchanged, the stress lever of the guide rail is shortened, and the stability and reliability of the guide rail are improved; compared with the previous high-float walking beam, the height of the rear beam can be reduced while the height of the guide rail and the guide wheel is kept unchanged, the angle of the rear beam is reduced, thereby improving the stress condition of the rear beam, and improving the overall stability and reliability of the chassis. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of a double-beam walking beam of a track-type harvester;

[0016] Figure 2 is a schematic view of a walking beam assembly;

[0017] Figure 3 is a schematic view of the assembly of the guide rail in the embodiment;

[0018] Figure 4 is a schematic view of the assembly of the guide rail in the prior art;

[0019] In the drawings, 1 is a chassis support, 2 is a driving wheel, 3 is a supporting wheel, 4 is a tensioning wheel, 5 is a track, 6 is a supporting wheel, 7 is a balancing wheel, 8 is a walking beam, 9 is a guide rail, 10 is a connecting seat, 11 is an axle sleeve, and 12 is a mounting seat. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the utility model, the utility model will be further described in combination with examples and drawings below, and the examples are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model.

[0021] As shown in Figures 1-3 The chassis bracket 1, the driving wheel 2, the idler wheel 3, the tension wheel 4, the track 5, the carrier wheel 6, the balance wheel 7, the walking beam 8, the guide rail 9, the connecting seat 10, the shaft sleeve 11, the mounting seat 12;

[0022] The embodiment provides a double-beam type walking beam of a track harvester, which comprises a chassis frame 1, a walking beam 8 and a wheel train assembly, the walking beam 8 is two, the two walking beams 8 are arranged on the lower sides of the chassis frame respectively, the wheel train assembly is two groups, the two groups of wheel train assemblies are also arranged on the lower sides of the chassis frame respectively, the wheel train assembly comprises a carrier wheel 6, a balance wheel 7, a driving wheel 2, a tension wheel 4 and an idler wheel 3, the outside of the wheel train assembly is sleeved with a walking track 5, the wheel train assembly can drive the walking track 5 to move, and then the walking of the whole structure is driven.

[0023] In the embodiment, in order to reduce the weight, the walking beam 8 can be a square tube, a connecting seat 10 is fixed below the walking beam 8 to assemble the carrier wheel 6, and a plurality of carrier wheels 6 can be assembled on each connecting seat 10. In the embodiment, the lower surface of each walking beam 8 is fixed with a plurality of connecting seats 10, and a plurality of shaft sleeves 11 are arranged on the connecting seats 10.

[0024] As a preferred technical scheme of the embodiment, the connecting seat 10 can be assembled on the lower surface of the walking beam 8 in a fixed connection mode such as welding. The shaft sleeve 11 is fixed on the connecting seat 10 in a mode such as welding, and the axle of the carrier wheel 6 can pass through the shaft sleeve 11, so that the carrier wheel 6 is rotatably assembled on the connecting seat 10. By assembling the carrier wheel 6 on the connecting seat 10 below the walking beam 8, on the one hand, the punching on the walking beam 8 can be avoided, so that the strength of the walking beam 8 is not reduced, and on the other hand, the height h of the lower surface of the walking beam 8 from the ground is obviously greater than the height h' of the lower surface of the walking beam 8 from the bottom in the prior art.

[0025] The balance wheel 7 is rotatably assembled in the middle of the walking beam 8, and the balance wheel 7 divides the connecting seat 10 into two groups.

[0026] As shown in Figure 3 and 4 Compared with the prior art, the installation of the mounting seat 12 can make the installation connection point of the guide rail more downward, so that the force lever of the guide rail 9 is shortened, the stability and reliability of the guide rail 9 are improved, and the working surface height of the walking beam 8 and the guide rail is unchanged. In the embodiment, the carrier wheels 6 in each wheel train assembly are six, three carrier wheels 6 are located in front of the balance wheel 7, and three carrier wheels 6 are located behind the balance wheel 7.

[0027] When the balance wheel 7 is assembled on the walking beam 8, the supporting wheel 6 is assembled on the connecting seat 10, the gap between the balance wheel 7 and the supporting wheel 6 is increased, and then when the chassis passes the ridge T, the supporting wheel 6 can fall on the bottom surface, and there is no risk of overturning.

[0028] The wheel train assembly further comprises a driving wheel 2, which is rotatably assembled at the front end of the chassis structure, and is located below the chassis frame and above all the supporting wheels 6.

[0029] The wheel train assembly further comprises a tension wheel 4, which is rotatably assembled at the rear end of the walking beam 8 and is adjustable in position. Specifically, the tension wheel 4 is slidably assembled on the walking beam 8 through a tensioning frame, one end of the tensioning frame is connected to the axle of the tension wheel 4, and the other end of the tensioning frame extends a square insertion end which extends into the walking beam 8 and is in sliding fit with the walking beam 8. Preferably, the end of the tensioning frame connected to the tension wheel 4 is a bent plate, which is rotatably assembled with the tension wheel 4.

[0030] As a preferred technical solution of the embodiment, the wheel train assembly further comprises a supporting wheel 3 to support the track 5.

[0031] In the embodiment, the connecting seat 10 is arranged below the walking beam 8, and the supporting wheels 6 are rotatably assembled on the connecting seat 10. The assembly position makes the installation position of the supporting wheels 6 lower relative to the walking beam 8 and the chassis frame, and further makes the height of the chassis frame and the walking beam 8 higher, and the distance between the walking beam 8 and the track 5 is also increased, so that the mud blockage is not easy to occur. At the same time, the height of the walking beam 8 is significantly improved, which can reduce the proportion of the walking beam 8 sinking into the mud, thereby achieving the effect of reducing the walking resistance.

[0032] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A double beam track harvester walking beam characterized by, The chassis frame, the walking beam assembly, the wheel train assembly, the track, the guide rail, the walking beam assembly is installed below the chassis frame, the walking beam assembly includes a walking beam, a connecting seat is arranged below the walking beam, an installation seat is arranged below the connecting seat, the installation seat is used for connecting the guide rail, the wheel train assembly is externally sleeved with the track, the guide rail guides the track, the wheel train assembly includes at least two supporting wheels, the supporting wheels are rotatably arranged on the connecting seat, and the wheel train assembly is installed on the walking beam assembly.

2. A double beam track harvester walking beam as claimed in claim 1 wherein, The number of the connecting seats is two, and the connecting seats are installed below the walking beam in front and back.

3. A double beam track harvester walking beam as claimed in claim 2 wherein, Axle sleeves are fixed on the connecting seats at intervals, and the wheel shafts of the supporting wheels pass through the axle sleeves.

4. A double beam track harvester walking beam as claimed in claim 3 wherein, The wheel train assembly further includes a balance wheel, the balance wheel is rotatably arranged at the middle part of the walking beam and between the two connecting seats.

5. A dual beam track harvester walking beam as claimed in claim 1 wherein, The wheel train assembly further includes a driving wheel, the driving wheel is rotatably arranged at the front end of the chassis frame.

6. A dual beam track harvester walking beam as claimed in claim 1 wherein, The wheel train assembly further includes a tensioning wheel, the tensioning wheel is adjustably arranged at the rear end of the walking beam.

7. A dual beam track harvester walking beam as claimed in claim 1 wherein, The wheel train assembly further includes a supporting wheel, and the supporting wheel is installed at a position deviated to the rear of the middle part of the walking beam.

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