CN220809603U

CN220809603U - Lifting and hydraulic driving tensioning wheel structure of chassis of rice harvester

Info

Publication number: CN220809603U
Application number: CN202322210286.3U
Authority: CN
Inventors: 陈高峯; 王玉强; 张玉印; 黄炜; 王喜恩; 张铁立
Original assignee: Anhui Juli Innovation Project Management Co ltd
Current assignee: Anhui Juli Innovation Project Management Co ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-04-19
Anticipated expiration: 2033-08-17

Abstract

The utility model discloses a lifting and hydraulic driving tensioning wheel structure of a rice harvester chassis, which comprises a chassis, a walking beam and a crawler, wherein the chassis is connected with a supporting beam, the walking beam is symmetrically arranged at two sides below the chassis, a four-bar mechanism part is arranged between the walking beam and the chassis, a lifting oil cylinder is arranged on the four-bar mechanism part and is connected with the supporting beam through a bracket, one end of the walking beam is provided with a lifting mechanism limiting part, the other side of the upper end of the walking beam is also provided with a hydraulic adjusting crawler tensioning part, the hydraulic adjusting crawler tensioning part is provided with a tensioning frame groove plate, and a hydraulic cylinder is arranged on the hydraulic adjusting crawler tensioning part. When the rice harvester encounters a higher obstacle or deeper water, the chassis of the rice harvester is lifted and the tensioning wheel structure is hydraulically driven, the rotary arm can move backwards by controlling the lifting oil cylinder to extend out, and the rotary arm drives the swing arm to swing upwards, so that the vehicle body is lifted upwards.

Description

Lifting and hydraulic driving tensioning wheel structure of chassis of rice harvester

Technical Field

The utility model relates to the technical field of harvesters, in particular to a chassis lifting and hydraulic driving tensioning wheel structure of a rice harvester.

Background

Agricultural machinery refers to mechanical equipment used for farmland operation and agricultural production, can help farmers complete a series of agricultural works such as farmland cultivation, seeding, fertilization, pesticide spraying, harvesting and the like, is basic equipment of modern agriculture, and plays a vital role in improving agricultural labor productivity, increasing agricultural product supply and guaranteeing stable development of agriculture. Common agricultural machinery includes tractors, sowers, harvesters, irrigation equipment, sprinklers, fertilisers, tillage machines, irrigation and drainage machines, and the like. With the development of society, the progress of science and technology and the acceleration of the construction pace of new societies and new rural areas, the application of agricultural machinery is greatly increased, and along with the continuous updating and expanding of market demands, the demands of rice harvesters are more and more prominent. The crawler-type rice harvester is special agricultural mechanical equipment for harvesting rice, adopts a crawler-type chassis design, can run in a wet and slippery rice field, and has good trafficability and stability.

The existing rice harvester is generally a fixed welding chassis, cannot be adjusted, and often bumps into a field ridge block when in operation, is not easy to operate, and bumps into a gearbox and other important parts, such as a liftable chassis device of a crawler harvester is disclosed in Chinese patent with a patent publication number of CN205196360U, and the crawler tensioning adjustment process still needs manual operation to be completed, so that the working efficiency is influenced, the adjustment effect cannot be guaranteed, and when the gravity center position of the harvester is close to the front, the front rotating arm and the spline of the swing arm are damaged greatly.

Disclosure of utility model

The utility model aims to provide a lifting and hydraulic driving tensioning wheel structure of a rice harvester chassis, which aims to solve the problems that the rice harvester in the current market provided by the background technology is generally a fixed welding chassis, cannot be adjusted, often hits a field ridge block during working, and is easy to strike a gearbox and other important parts due to improper operation.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a rice harvester chassis goes up and down and hydraulic drive take-up pulley structure, includes chassis, walking beam and track, be connected with a supporting beam on the chassis, and walking beam symmetry locates chassis below both sides to install four link mechanism parts between walking beam and the chassis, install lift cylinder in the four link mechanism parts, and lift cylinder passes through the support and be connected with a supporting beam, make lift cylinder can go on lifting treatment to the chassis, one of them end of walking beam is equipped with elevating system spacing part, and walking beam upper end opposite side still installs hydraulic pressure regulation track tensioning part, be equipped with the tensioning frame frid on the hydraulic pressure regulation track tensioning part, and install the pneumatic cylinder on the hydraulic pressure regulation track tensioning part to be connected with the backup pad between pneumatic cylinder and the tensioning frame frid, the track inboard is equipped with the take-up pulley, and the outer block of track take-up pulley has the track take-up pulley supporting seat, and the track pulley supporting seat is connected with the tensioning frame frid, makes track pulley accessible hydraulic pressure regulation track tensioning part carry out hydraulic drive and handles.

Preferably, the four-bar mechanism part is provided with a middle shaft tube, the front end and the rear end of the middle shaft tube are respectively provided with a rotary arm, pin shafts are respectively penetrated between the middle shaft tube and the rotary arms, pin shaft connection is also penetrated between the rotary arms at the rear end of the middle shaft tube and the lifting oil cylinder, a first spline shaft and a second spline shaft are respectively meshed in the rotary arms, and the side surfaces of the first spline shaft and the second spline shaft are respectively welded with a front swing arm supporting tube and a rear swing arm supporting tube.

Preferably, the side surfaces of the four-bar mechanism are respectively provided with a rear cross beam shaft sleeve, two sides of the rear cross beam shaft sleeve are respectively welded with a rear inner supporting seat and a rear outer supporting seat, and the rear inner supporting seat is welded and fixed with the chassis.

Preferably, the front swing arm support tube and the rear swing arm support tube are welded and fixed with the rear inner support seat and the rear outer support seat which correspond to the positions respectively, the support tubes and the shaft sleeves are welded at the upper ends and one sides of the front swing arm support tube and the rear swing arm support tube respectively, the front connecting plate and the rear connecting plate are welded and fixed at the other sides of the shaft sleeves respectively, the front connecting plate is welded and fixed with the walking beam, the rear connecting plate is fixed with the tensioning frame groove plate through bolts, the lower pin shafts penetrate through the space between the rear connecting plate and the tensioning frame groove plate, and the lower pin shaft sleeves are sleeved at the two ends of the lower pin shafts.

Preferably, the front connecting plate is arranged on the limiting part of the lifting mechanism, the front connecting plate and the shaft sleeve are also welded and fixed, a limiting base plate is arranged between the front connecting plates, and a lower pin shaft is also penetrated between the front connecting plate and the four-bar mechanism part.

Preferably, the other end of the hydraulic cylinder is fixedly provided with a hydraulic cylinder supporting seat through a bolt, and the hydraulic cylinder supporting seat is welded on the walking beam.

Compared with the prior art, the utility model has the beneficial effects that: when the rice harvester encounters a higher obstacle or deeper water, the chassis of the rice harvester is lifted and the tensioning wheel structure is hydraulically driven, the rotary arm can move backwards by controlling the lifting oil cylinder to extend out, and the rotary arm drives the swing arm to swing upwards, so that the vehicle body is lifted upwards. This rice harvester chassis goes up and down and hydraulic drive take-up pulley structure is under the track elasticity state, stretches out through the control pneumatic cylinder for track take-up pulley back and forth movement, and then adjust track tensioning as required, hydraulic automatization adjusts travelling comfort and the stability that has improved crawler-type chassis, has improved work efficiency.

Drawings

FIG. 1 is a schematic diagram of a structure of a lifting and hydraulically driven tensioning wheel of a chassis of a rice harvester;

FIG. 2 is a schematic diagram of a limiting part of a lifting mechanism of a chassis lifting and hydraulic driving tensioning wheel structure of a rice harvester;

FIG. 3 is a schematic view of a hydraulic adjusting track tensioning part of a rice harvester chassis lifting and hydraulic driving tensioning wheel structure;

FIG. 4 is an isometric view of a structure of a lifting and hydraulically driven tensioning wheel of a chassis of a rice harvester according to the utility model;

FIG. 5 is a schematic view of a part of a four-bar mechanism with a chassis lifting and hydraulic driving tensioning wheel structure for a rice harvester;

Fig. 6 is a schematic diagram of a connection structure between a four-bar linkage part and a chassis of a chassis lifting and hydraulic driving tensioning wheel structure of a rice harvester.

In the figure: 1. a chassis; 101. a support beam; 2. a four bar linkage portion; 201. a lower pin bushing; 202. a lower pin shaft; 203. a first spline shaft; 204. a lifting oil cylinder; 205. a pin shaft; 206. a rear inner support; 207. a rear outer support base; 208. a support tube; 209. a rear swing arm support tube; 210. a shaft sleeve; 211. a rear connecting plate; 212. a second spline shaft; 213. a front swing arm supporting tube; 214. a rear cross beam sleeve; 215. a middle shaft tube; 216. a rotary arm; 3. a lifting mechanism limiting part; 301. a front connecting plate; 302. a limit backing plate; 4. a walking beam; 5. hydraulically adjusting the track tensioning portion; 501. tensioning frame groove plates; 502. a support plate; 503. a hydraulic cylinder; 504. a hydraulic cylinder support seat; 6. a track tensioning wheel; 601. a track tensioning wheel supporting seat; 7. a track.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: a chassis lifting and hydraulic driving tensioning wheel structure of a rice harvester comprises a chassis 1, a walking beam 4 and a crawler 7, wherein the chassis 1 is connected with a supporting beam 101, the walking beam 4 is symmetrically arranged on two sides below the chassis 1, a four-bar mechanism part 2 is arranged between the walking beam 4 and the chassis 1, a lifting oil cylinder 204 is arranged on the four-bar mechanism part 2, the lifting oil cylinder 204 is connected with the supporting beam 101 through a bracket, the lifting oil cylinder 204 can lift the chassis 1, one end of the walking beam 4 is provided with a lifting mechanism limiting part 3, the other side of the upper end of the walking beam 4 is also provided with a hydraulic adjusting crawler tensioning part 5, the hydraulic adjusting crawler tensioning part 5 is provided with a tensioning frame groove plate 501, the hydraulic adjusting crawler tensioning part 5 is provided with a hydraulic cylinder 503, a supporting plate 502 is connected between the hydraulic cylinder 503 and the tensioning frame groove plate 501, an intermediate shaft tube 215 is arranged on the four-bar mechanism part 2, the front end and the rear end of the intermediate shaft tube 215 are respectively provided with a rotary shaft tube 216, a pin 205 is respectively penetrated through the intermediate shaft tube 216 and the rotary shaft 216, an arm 216 at the rear end of the intermediate shaft tube 215 is also connected with the lifting oil cylinder 204 through the lifting shaft 205, the arm 216 and the first shaft 216 and the second shaft 216 are respectively meshed with a swing arm 203, a spline is meshed with a second shaft 212 through the rotary spline shaft 212, a spline 212 is respectively, and a spline is meshed with a first spline shaft 212 and a second spline shaft 212, a spline 212 is rotatably driven by the rotary shaft 212, a second spline is respectively, and a spline 212 is meshed with a second spline shaft 212 is respectively, and a spline is meshed with a support shaft 212, and a spline 212 is rotatably, and a spline 212 is formed in the support shaft and a spline. The lifting treatment of the chassis 1 is realized, the side surface of the four-bar mechanism part 2 is provided with a rear cross beam shaft sleeve 214, two sides of the rear cross beam shaft sleeve 214 are respectively welded with a rear inner supporting seat 206 and a rear outer supporting seat 207, the rear inner supporting seat 206 is welded and fixed with the chassis 1, the structure ensures that the four-bar mechanism part 2 and the chassis 1 are relatively and firmly treated through the rear cross beam shaft sleeve 214 and the rear inner supporting seat 206, a front swing arm supporting tube 213 and a rear swing arm supporting tube 209 are respectively welded and fixed with the rear inner supporting seat 206 and the rear outer supporting seat 207 which correspond to each other in position, the upper ends and one sides of the front swing arm supporting tube 213 and the rear swing arm supporting tube 209 are respectively welded with a supporting tube 208 and a shaft sleeve 210, the supporting tube 208 plays a role of firmly connecting the front swing arm supporting tube 213 and the rear swing arm supporting tube 209 with the chassis, the other side of the shaft sleeve 210 is respectively welded with a front connecting plate 301 and a rear connecting plate 211, the front connecting plate 301 is welded and fixed with the walking beam 4, the rear connecting plate 211 is fixed with the tensioning frame groove plate 501 by bolts, a lower pin shaft 202 penetrates through the space between the rear connecting plate 211 and the tensioning frame groove plate 501, two ends of the lower pin shaft 202 are sleeved with lower pin shaft sleeves 201, the structure ensures that the four-bar mechanism part 2 can rotate relative to the hydraulic adjusting track tensioning part 5 and the walking beam 4, the inner side of the track 7 is provided with a track tensioning wheel 6, the outer side of the track tensioning wheel 6 is clamped with a track tensioning wheel supporting seat 601, the track tensioning wheel supporting seat 601 is connected with the tensioning frame groove plate 501, the track tensioning wheel 6 can be hydraulically driven by the hydraulic adjusting track tensioning part 5, the front connecting plate 301 is arranged on the lifting mechanism limiting part 3, the front connecting plate 301 is welded and fixed with the shaft sleeve 210, a limiting base plate 302 is arranged between the front connecting plate 301, and also run through down round pin axle 202 between front connecting plate 301 and the four-bar linkage part 2, this structure elevating system spacing part 3 plays the spacing effect of installation to four-bar linkage part 2 through front connecting plate 301 and back connecting plate 211 to play spacing processing of going up and down to chassis 1, the pneumatic cylinder 503 other end is fixed with pneumatic cylinder supporting seat 504 through the bolt fastening, and pneumatic cylinder supporting seat 504 welds on walking beam 4, and during this structure pneumatic cylinder 503 expansion and contraction treatment, drive track take-up pulley 6 activity, thereby carry out track 7 tensioning adjustment treatment.

Working principle: when the chassis of the rice harvester is used for lifting and hydraulically driving the tensioning wheel structure, firstly, when the rice harvester encounters higher obstacle or deeper water, the lifting oil cylinder 204 is started, the lifting oil cylinder 204 stretches to push the rotary arm 216 behind the middle shaft tube 215 to rotate, the rotary arm 216 is connected with the first spline shaft 203 in a meshed manner, the front swing arm supporting tube 213 rotates around the pin shaft 205, meanwhile, the middle shaft tube 215 drives the front rotary arm 216 to rotate, the rotary arm 216 drives the rear swing arm supporting tube 209 to rotate around the pin shaft 205 through the meshing manner with the second spline shaft 212, the integral lifting treatment of the chassis 1 is realized, the supporting beam 101 plays a role in mounting and positioning the lifting oil cylinder 204, the lifting mechanism limiting part 3 performs the lifting limiting treatment of the four-bar mechanism part 2 through the front connecting plate 301 and the rear connecting plate 211, when the tensioning of the crawler 7 is adjusted through the hydraulic adjusting crawler tensioning part 5, the hydraulic cylinder 503 is started, the hydraulic cylinder 503 drives the crawler tensioning wheel supporting seat 601 to drive the crawler tensioning wheel 6 to move through the limit of the tensioning frame groove plate 501, the hydraulic cylinder supporting seat 504 plays a role in firmly connecting the hydraulic cylinder 503 with the walking beam 4, the supporting plate 502 plays a role in connecting the hydraulic cylinder 503 with the tensioning frame groove plate 501, the four-bar mechanism part 2 rotates relative to the walking beam 4 through the rear connecting plate 211 and the front connecting plate 301 when the crawler tensioning wheel 6 is adjusted in position, the lower pin shaft 202 is used for rotating and limiting, the lower pin shaft sleeve 201 plays a role in fixing the lower pin shaft 202, the limiting base plate 302 plays a role in supporting the middle part of the front connecting plate 301, the four-bar mechanism part 2 and the chassis 1 are relatively firmly processed through the rear cross beam shaft sleeve 214 and the rear inner supporting seat 206, the rear inner support base 206 and the rear outer support base 207 respectively play a role in positioning the front swing arm support tube 213 and the rear swing arm support tube 209, so that the four-bar mechanism part 2 is stable, after the four-bar mechanism part 2 rotates, the shaft sleeve 210 is used for fixing the spline shaft, and the support tube 208 plays a role in connecting and stabilizing the front swing arm support tube 213 and the rear swing arm support tube 209 with the frame, thereby completing a series of works.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a rice harvester chassis goes up and down and hydraulic drive take-up pulley structure, includes chassis (1), walking roof beam (4) and track (7), its characterized in that: the novel crawler belt tensioning device is characterized in that the supporting beam (101) is connected to the chassis (1), the walking beam (4) is symmetrically arranged on two sides of the lower portion of the chassis (1), a four-bar mechanism part (2) is arranged between the walking beam (4) and the chassis (1), a lifting oil cylinder (204) is arranged on the four-bar mechanism part (2), the lifting oil cylinder (204) is connected with the supporting beam (101) through a support, the lifting oil cylinder (204) can lift the chassis (1), one end of the walking beam (4) is provided with a lifting mechanism limiting part (3), the other side of the upper end of the walking beam (4) is also provided with a hydraulic adjusting crawler belt tensioning part (5), a tensioning frame groove plate (501) is arranged on the hydraulic adjusting crawler belt tensioning part (5), a hydraulic cylinder (503) is arranged on the hydraulic adjusting crawler belt tensioning part (5), a supporting plate (502) is connected between the hydraulic cylinder (503) and the tensioning frame groove plate (501), the inner side of the crawler belt (7) is provided with a crawler belt tensioning wheel (6), the tensioning wheel supporting seat (601) is clamped outside the crawler belt tensioning wheel supporting seat, and the crawler belt tensioning seat (6) can be driven by the crawler belt tensioning seat (6) to be driven by the hydraulic adjusting part (6).

2. The rice harvester chassis lifting and hydraulically driven tensioner structure of claim 1, wherein: the four-bar linkage mechanism is characterized in that a middle shaft tube (215) is arranged on the four-bar linkage mechanism part (2), rotary arms (216) are respectively arranged at the front end and the rear end of the middle shaft tube (215), pin shafts (205) are respectively penetrated between the middle shaft tube (215) and the rotary arms (216), pin shafts (205) are also penetrated between the rotary arms (216) at the rear end of the middle shaft tube (215) and the lifting oil cylinders (204) for connection, a first spline shaft (203) and a second spline shaft (212) are respectively meshed with the rotary arms (216), and front swing arm supporting tubes (213) and rear swing arm supporting tubes (209) are respectively welded on the side surfaces of the first spline shaft (203) and the second spline shaft (212).

3. The rice harvester chassis lifting and hydraulically driven tensioner structure of claim 1, wherein: the four-bar mechanism is characterized in that rear cross beam shaft sleeves (214) are arranged on the side faces of the four-bar mechanism part (2), rear inner supporting seats (206) and rear outer supporting seats (207) are welded on the two sides of the rear cross beam shaft sleeves (214) respectively, and the rear inner supporting seats (206) are welded and fixed with the chassis (1).

4. The rice harvester chassis lifting and hydraulically driven tensioner structure of claim 2, wherein: front swing arm stay tube (213) and back swing arm stay tube (209) still respectively with the corresponding back interior supporting seat (206) of position and back outside supporting seat (207) welded fastening, and front swing arm stay tube (213) and back swing arm stay tube (209) upper end and one side have welded stay tube (208) and axle sleeve (210) respectively, axle sleeve (210) opposite side has welded front connection board (301) and back connecting board (211) respectively, and front connection board (301) and walking beam (4) welded fastening, back connecting board (211) and tensioning frame frid (501) bolt fastening, run through down round pin axle (202) between back connecting board (211) and the tensioning frame frid (501), and down round pin axle (202) both ends all overlap and are equipped with down round pin axle sleeve (201).

5. The rice harvester chassis lifting and hydraulically driven tensioner structure of claim 4, wherein: the front connecting plate (301) is arranged on the limiting part (3) of the lifting mechanism, the front connecting plate (301) and the shaft sleeve (210) are also welded and fixed, a limiting base plate (302) is arranged between the front connecting plate (301), and a lower pin shaft (202) is also penetrated between the front connecting plate (301) and the four-bar mechanism part (2).

6. The rice harvester chassis lifting and hydraulically driven tensioner structure of claim 1, wherein: the other end of the hydraulic cylinder (503) is fixed with a hydraulic cylinder supporting seat (504) through a bolt, and the hydraulic cylinder supporting seat (504) is welded on the walking beam (4).