CN103144690A - Telescopic track chassis for small-sized tractor - Google Patents

Telescopic track chassis for small-sized tractor Download PDF

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Publication number
CN103144690A
CN103144690A CN2012105905491A CN201210590549A CN103144690A CN 103144690 A CN103144690 A CN 103144690A CN 2012105905491 A CN2012105905491 A CN 2012105905491A CN 201210590549 A CN201210590549 A CN 201210590549A CN 103144690 A CN103144690 A CN 103144690A
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CN
China
Prior art keywords
wheel
vehicle frame
frame
track
pillar
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Pending
Application number
CN2012105905491A
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Chinese (zh)
Inventor
杨福增
刘虹玉
王元杰
蒲应俊
王涛
张梦芸
周渝
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Northwest A&F University
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Northwest A&F University
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Publication date
Application filed by Northwest A&F University filed Critical Northwest A&F University
Priority to CN2012105905491A priority Critical patent/CN103144690A/en
Publication of CN103144690A publication Critical patent/CN103144690A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a telescopic track chassis for a small-sized tractor. The telescopic track chassis consists of a telescopic mechanism and track walking mechanisms. The telescopic mechanism comprises a hydraulic oil cylinder, a hydraulic oil cylinder bushing, an edge frame, a guide bushing and a vehicle frame, wherein the edge frame is driven to move by the telescopic movement of the hydraulic oil cylinder, a distance of the edge frame and the vehicle frame is changed, meanwhile a baffle and a tensioning device are driven to move by the edge frame through a support, and a track is driven to move by the movement of a driving wheel and a guiding wheel which are respectively driven by the baffle and the tensioning device, so that the track walking mechanisms on two sides of the vehicle frame are enabled to transversely move to realize the adjustment of a rail distance of the track. According to the telescopic track chassis for the small-sized tractor, the rail distance of the track can be adjusted, the structure is small and exquisite, the mass is light, the center of gravity is low, the installation is convenient, and the telescopic track chassis is suitable for various working situations, such as a narrow space, smooth ground, a hill, a mountain and the like.

Description

A kind of compact tractor adjustable crawler chassis
Technical field
The invention belongs to agricultural mechanical field, relate to a kind of chassis structure, relate in particular to the adjustable compact tractor adjustable crawler of a kind of track center distance chassis.
Background technology
the creeper undercarriage of existing compact tractor crawler body and the distance between vehicle frame are fixed, track center distance is unadjustable, when track center distance hour, good in the work of smooth plot, bad in the unfairness such as hilly and mountainous land its stability of ground and crossing ability, when track center distance is larger, stability and crossing ability on the unfairness such as hilly and mountainous land ground are better, but being not suitable for warmhouse booth less in the space etc. requires to work under the small and exquisite operating mode flexibly of Work machine, the compact tractor that is equipped with at present crawler body can only be applied under specific environment, field of application is narrower, can not maximum its working ability of performance.
Summary of the invention
For the shortcomings and deficiencies that exist in above prior art, the object of the present invention is to provide a kind of high-mobility, multipurpose, wheeled vehicle, stable work in work, the adjustable a kind of compact tractor adjustable crawler of track center distance chassis.
The present invention is achieved through the following technical solutions.
A kind of compact tractor adjustable crawler chassis, formed by telescoping mechanism and creeper undercarriage, mainly comprise crawler belt, vehicle frame, drive wheel, baffle plate, caterpillar wheel, caterpillar wheel support, limit frame, hydraulic ram, hydraulic ram lining, fixed muffle, pillar, pilot bushing, track adjusting wheel, support roller, tightening device.Telescoping mechanism is comprised of hydraulic ram, hydraulic ram lining, limit frame, pilot bushing and vehicle frame, the fore and aft motion of hydraulic ram drives the transverse shifting of limit frame, change the distance between limit frame and vehicle frame, the limit frame drives baffle plate and tightening device transverse shifting by pillar simultaneously, baffle plate and tightening device are by driving respectively the transverse shifting of drive wheel and track adjusting wheel, and then drive the crawler belt transverse shifting, thus make the creeper undercarriage transverse shifting of vehicle frame both sides, realize the adjusting of track center distance; When hydraulic ram shrank, baffle plate drove drive wheel and moves inwards, need block the groove of drive wheel at baffle plate with a cutting ferrule, and hydraulic ram need not cutting ferrule and blocks baffle plate and drive wheel when stretching out.
one end of hydraulic ram is fixed on the frame of limit, the other end is fixed on vehicle frame by the hydraulic ram lining, the hydraulic ram lining is made by vibration-absorptive material, the impact of body vibrations to hydraulic ram in can minimizing work, have two and the perpendicular guidepost of caterpillar drive direction on the frame of limit, this guidepost has equidistant tapped bore and leads by the pilot bushing that is arranged on vehicle frame, not only the fore and aft motion of hydraulic ram played directional tagging, guaranteed the parallelism in flexible direction, also play and transmit tare to the effect of caterpillar wheel, guidepost on the frame of limit is connected bolt and is connected with fixed muffle, fixed muffle is connected bolt and is connected with vehicle frame, guarantee that track center distance is constant in the process of travelling, when needs are regulated track center distance, turn on the bolt of fixed guide post and fixed muffle, the regulator solution compressing cylinder, track center distance is adjusted to correct position, install again bolt.Pilot bushing is high-abrasive material, and vehicle frame is welded by channel-section steel and angle steel, has hydraulic ram lining and the hole of pilot bushing and the hole of fixed muffle bolt are installed the light and even structure of quality on vehicle frame.
Creeper undercarriage is comprised of drive wheel, track adjusting wheel, tightening device, caterpillar wheel, caterpillar wheel support, support roller, pillar and crawler belt, is placed in the left and right sides of vehicle frame, is connected with vehicle frame by the limit frame, realizes advancing, retreat and turning to of car load.The support of support roller is connected the upper end and is connected with pillar, caterpillar wheel is connected with the caterpillar wheel support, the caterpillar wheel support is connected the lower end and is connected with pillar, the limit frame is connected the lower end and is connected with pillar, the splined hole of drive wheel is connected back axle and is connected with facility by castellated shaft, be connected respectively pillar and connect in the two ends of baffle plate with drive wheel, track adjusting wheel is connected with pillar by tightening device, realized the tensioning of crawler belt by tightening device, can cushion uneven road surface to the impact of crawler belt, extend the life-span of crawler belt, crawler belt is arranged on the periphery of drive wheel, track adjusting wheel, caterpillar wheel and support roller.
Compared with prior art, the invention has the beneficial effects as follows: the track center distance on this Novel small-sized trac. adjustable crawler chassis can be regulated, structure is small and exquisite, quality is light, when when the operating modes such as the narrow spaces such as warmhouse booth, Land leveling are worked, hydraulic ram is in retracted mode, and gauge diminishes, and makes the little and flexible operation of machine volume; When the bad conditioies such as unfairness ground or hilly and mountainous land are worked, can regulate hydraulic ram, make it be in extended state, track center distance increases the people, crossing ability and the stability on flexible chassis are improved, replaceable wider crawler belt, make and use the compact tractor on this flexible chassis to have better adhesion value and stability simultaneously.The demand of car load when different operating mode work satisfied on this chassis well.
Description of drawings
Further illustrate the present invention below in conjunction with accompanying drawing.
Fig. 1 is the front view on compact tractor adjustable crawler chassis;
Fig. 2 is the birds-eye view on compact tractor adjustable crawler chassis;
Fig. 3 is that compact tractor adjustable crawler chassis is in a kind of of the state of stretching out;
In figure: 1-crawler belt, 2-vehicle frame, 3-drive wheel, 4-baffle plate, 5-caterpillar wheel, 6-caterpillar wheel support, 7-limit frame, 8-hydraulic ram, 9-hydraulic ram lining, 10-fixed muffle, 11-pillar, 12-pilot bushing, 13-track adjusting wheel, 14-support roller, 15-tightening device.
The specific embodiment
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
As depicted in figs. 1 and 2, a kind of compact tractor adjustable crawler chassis, formed by telescoping mechanism and creeper undercarriage, mainly comprise crawler belt 1, vehicle frame 2, drive wheel 3, baffle plate 4, caterpillar wheel 5, caterpillar wheel support 6, limit frame 7, hydraulic ram 8, hydraulic ram lining 9, fixed muffle 10, pillar 11, pilot bushing 12, track adjusting wheel 13, support roller 14, tightening device 15.Telescoping mechanism is comprised of hydraulic ram 8, hydraulic ram lining 9, limit frame 7, pilot bushing 12 and vehicle frame 2, the fore and aft motion of hydraulic ram 8 drives the transverse shifting of limit frame 7, change the distance between limit frame 7 and vehicle frame 2, limit frame 7 drives baffle plate 4 and tightening device 15 transverse shiftings by pillar 11 simultaneously, baffle plate 4 and tightening device 15 are by driving respectively mobile crawler belt 1 transverse shifting that drives of drive wheel 3 and track adjusting wheel 13, thereby make the creeper undercarriage transverse shifting of vehicle frame 2 both sides, realize the adjusting of track center distance; When hydraulic ram 8 shrank, baffle plate 4 drove drive wheels and moves inwards, need block the groove of drive wheel 3 at baffle plate 4 with a cutting ferrule, and hydraulic ram 8 need not cutting ferrule and blocks baffle plate 4 and drive wheel 3 when stretching out.
one end of hydraulic ram 8 is fixed on limit frame 7, the other end is fixed on vehicle frame 2 by hydraulic ram lining 9, hydraulic ram lining 9 is made by vibration-absorptive material, the impact of body vibrations to hydraulic ram 8 in can minimizing work, have two and the perpendicular guidepost of caterpillar drive direction on limit frame 7, this guidepost has equidistant tapped bore and leads by the pilot bushing 12 that is arranged on vehicle frame 2, not only the fore and aft motion of hydraulic ram 8 played directional tagging, guaranteed the parallelism in flexible direction, also play and transmit tare to the effect of caterpillar wheel 5, guidepost on limit frame 7 is connected with fixed muffle and is connected by bolt, fixed muffle 10 is connected with vehicle frame and is connected by bolt, guarantee that track center distance is constant in the process of travelling, when needs are regulated track center distance, turn on the bolt of fixed guide post and fixed muffle 10, regulator solution compressing cylinder 8, track center distance is adjusted to correct position, install again bolt.Pilot bushing 12 is high-abrasive material, and vehicle frame 2 is welded by channel-section steel and angle steel, has hydraulic ram lining 9 and the hole of pilot bushing 12 and the hole of fixed muffle bolt are installed the light and even structure of quality on vehicle frame 2.
Creeper undercarriage is comprised of drive wheel 3, track adjusting wheel 13, tightening device 15, caterpillar wheel 5, caterpillar wheel support 6, support roller 14, pillar 11 and crawler belt 1, be placed in the left and right sides of vehicle frame 2, are connected connection by limit frame 7 with vehicle frame, realize advancing, retreat and turning to of car load.the upper end that the support of support roller 14 is connected with pillar connects, caterpillar wheel 5 is connected connection with the caterpillar wheel support, the lower end that caterpillar wheel support 6 is connected with pillar connects, the lower end that limit frame 7 is connected with pillar connects, the splined hole of drive wheel 3 is connected back axle and is connected with facility by castellated shaft, the two ends of baffle plate 4 respectively with drive wheel 3, pillar 11 connects, track adjusting wheel 13 is connected connection by tightening device 15 with pillar, realized the tensioning of crawler belt 1 by tightening device 15, can cushion uneven road surface to the impact of crawler belt 1, extend the life-span of crawler belt 1, crawler belt 1 is arranged on drive wheel 3, track adjusting wheel 13, the periphery of caterpillar wheel 5 and support roller 14.
When regulating the chassis track center distance, turn on the fix screw that connects guidepost and fixed muffle 10, the hydraulic ram 8 of regulating in telescoping mechanism makes telescoping mechanism drive the creeper undercarriage motion of vehicle frame 2 both sides, hydraulic ram 8 is flexible to the correct position that fix screw can be installed, install again fix screw, complete the adjusting of track center distance; Fig. 2 is compact tractor crawler body track center distance state hour.
Tapped bore on the guidepost that has due to limit frame 6 is for uniformly-spaced, corresponding different tapped bore track center distance is different, the track center distance of stretching out of crawler body was a plurality of specific values so should stretch, and Fig. 3 is a kind of state that the compact tractor crawler body is stretched out.

Claims (1)

1. compact tractor adjustable crawler chassis, formed by telescoping mechanism and creeper undercarriage, it is characterized in that: telescoping mechanism is by hydraulic ram (8), hydraulic ram lining (9), limit frame (7), pilot bushing (12) and vehicle frame (2) form, the fore and aft motion of hydraulic ram (8) drives limit frame (7) transverse shifting, change the distance between limit frame (7) and vehicle frame (2), limit frame (7) drives baffle plate (4) and tightening device (15) transverse shifting by pillar (11) simultaneously, baffle plate (4) and tightening device (15) drive respectively the transverse shifting of drive wheel (3) and track adjusting wheel (13), and then drive crawler belt (1) transverse shifting, thereby make the creeper undercarriage transverse shifting of vehicle frame (2) both sides, realize the adjusting of track center distance, one end of hydraulic ram (8) is fixed on limit frame (7), the other end is fixed on vehicle frame (2) by hydraulic ram lining (9), the guidepost that has two and caterpillar drive perpendicular direction on limit frame (7), this guidepost has equidistant tapped bore and leads by the pilot bushing (12) that is arranged on vehicle frame (2), guidepost on limit frame (7) is connected 10 with fixed muffle) connected by bolt, fixed muffle (10) is connected 2 with vehicle frame) connected by bolt, vehicle frame (2) is welded by channel-section steel and angle steel,
described creeper undercarriage is by drive wheel (3), track adjusting wheel (13), tightening device (15), caterpillar wheel (5), caterpillar wheel support (6), support roller (14), pillar (11) and crawler belt (1) form, be placed in the left and right sides of vehicle frame (2), be connected 2 by limit frame (7) with vehicle frame) connect, wherein, the support of support roller (14) is connected 11 with pillar) the upper end connect, caterpillar wheel (5) is connected with caterpillar wheel support (6), caterpillar wheel support (6) is connected with the lower end of pillar (11), limit frame (7) is connected 11 with pillar) the lower end connect, the splined hole of drive wheel (3) is connected back axle and is connected with facility by castellated shaft, the two ends of baffle plate (4) are connected 11 with drive wheel (3) with pillar respectively) be connected, track adjusting wheel (13) is connected 11 by tightening device (15) with pillar) connect, crawler belt (1) is arranged on drive wheel (3), track adjusting wheel (13), the periphery of caterpillar wheel (5) and support roller (14).
CN2012105905491A 2012-12-31 2012-12-31 Telescopic track chassis for small-sized tractor Pending CN103144690A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103287517A (en) * 2013-06-27 2013-09-11 中国北方车辆研究所 Deformation track type small-sized mobile system
CN107618581A (en) * 2017-10-08 2018-01-23 湖南星邦重工有限公司 A kind of crawler body and high-altitude operation vehicle
CN110562339A (en) * 2019-08-07 2019-12-13 安徽延达智能科技有限公司 Crawler-type running gear bearing structure
CN112693534A (en) * 2021-03-02 2021-04-23 深圳市世阳实业有限公司 Tank track adjuster capable of automatically adjusting track tensioning condition according to running road condition
CN113184070A (en) * 2021-05-31 2021-07-30 华南农业大学 Agricultural machine leveling chassis suitable for hilly and mountainous regions and agricultural machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003327173A (en) * 2002-05-10 2003-11-19 Sumitomo Heavy Industries Construction Crane Co Ltd Position fixing apparatus for tread member of crawler crane
JP2006290020A (en) * 2005-04-06 2006-10-26 Kobelco Cranes Co Ltd Lower part traveling body of crawler type working machine
CN101607574A (en) * 2009-07-20 2009-12-23 长沙中联重工科技发展股份有限公司 Caterpillar chassis and have the construction machinery and equipment on this chassis
CN202227384U (en) * 2011-08-22 2012-05-23 广西玉柴重工有限公司 Limit mechanism capable of regulating width of crawler frame of excavator
CN202337293U (en) * 2011-10-28 2012-07-18 广东力源液压机械有限公司 Retractable-type track chassis
CN102815346A (en) * 2012-08-09 2012-12-12 恒天九五重工有限公司 Caterpillar band amplitude varying device of rotary drilling rig
CN202987316U (en) * 2012-12-31 2013-06-12 西北农林科技大学 Telescopic track chassis of small tractor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003327173A (en) * 2002-05-10 2003-11-19 Sumitomo Heavy Industries Construction Crane Co Ltd Position fixing apparatus for tread member of crawler crane
JP2006290020A (en) * 2005-04-06 2006-10-26 Kobelco Cranes Co Ltd Lower part traveling body of crawler type working machine
CN101607574A (en) * 2009-07-20 2009-12-23 长沙中联重工科技发展股份有限公司 Caterpillar chassis and have the construction machinery and equipment on this chassis
CN202227384U (en) * 2011-08-22 2012-05-23 广西玉柴重工有限公司 Limit mechanism capable of regulating width of crawler frame of excavator
CN202337293U (en) * 2011-10-28 2012-07-18 广东力源液压机械有限公司 Retractable-type track chassis
CN102815346A (en) * 2012-08-09 2012-12-12 恒天九五重工有限公司 Caterpillar band amplitude varying device of rotary drilling rig
CN202987316U (en) * 2012-12-31 2013-06-12 西北农林科技大学 Telescopic track chassis of small tractor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103287517A (en) * 2013-06-27 2013-09-11 中国北方车辆研究所 Deformation track type small-sized mobile system
CN103287517B (en) * 2013-06-27 2018-02-27 中国北方车辆研究所 A kind of deformed caterpillar formula small-sized movable system
CN107618581A (en) * 2017-10-08 2018-01-23 湖南星邦重工有限公司 A kind of crawler body and high-altitude operation vehicle
CN110562339A (en) * 2019-08-07 2019-12-13 安徽延达智能科技有限公司 Crawler-type running gear bearing structure
CN112693534A (en) * 2021-03-02 2021-04-23 深圳市世阳实业有限公司 Tank track adjuster capable of automatically adjusting track tensioning condition according to running road condition
CN113184070A (en) * 2021-05-31 2021-07-30 华南农业大学 Agricultural machine leveling chassis suitable for hilly and mountainous regions and agricultural machine
CN113184070B (en) * 2021-05-31 2023-07-21 华南农业大学 Agricultural machine leveling chassis suitable for hilly mountain land and agricultural machine

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Application publication date: 20130612