CN108100066B - Adjustable crawler travel mechanism and tractor - Google Patents
Adjustable crawler travel mechanism and tractor Download PDFInfo
- Publication number
- CN108100066B CN108100066B CN201711212333.0A CN201711212333A CN108100066B CN 108100066 B CN108100066 B CN 108100066B CN 201711212333 A CN201711212333 A CN 201711212333A CN 108100066 B CN108100066 B CN 108100066B
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- China
- Prior art keywords
- ground clearance
- clearance adjusting
- frame
- hydraulic cylinder
- chassis
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/084—Endless-track units or carriages mounted separably, adjustably or extensibly on vehicles, e.g. portable track units
Abstract
The invention provides an adjustable crawler belt walking mechanism and a tractor, wherein the walking mechanism comprises a crawler belt, a chassis, a frame, a ground clearance adjusting connecting rod, a driving wheel, a tensioning wheel sliding pair, a guide wheel sliding pair, a supporting wheel and a ground clearance adjusting hydraulic cylinder group; the ground clearance adjusting connecting rod is arranged in the track in the vertical direction, and the driving wheel and the thrust wheel are respectively arranged at two ends of the ground clearance adjusting connecting rod and are embedded on the track; the frame is arranged in the track along the horizontal direction and is connected with the ground clearance adjusting connecting rod; the tensioning wheel sliding pair and the guide wheel sliding pair are respectively arranged at two ends of the frame and are nested on the track; the chassis is arranged at the upper end of the frame along the horizontal direction, and one end of the chassis is connected with the ground clearance adjusting connecting rod; one end of the ground clearance adjusting hydraulic cylinder group is connected with the chassis, and the other end of the ground clearance adjusting hydraulic cylinder group is connected with the frame; by adopting the scheme, the height between the tractor chassis and the ground can be adjusted, the tractor chassis can adapt to complex terrains to a greater extent, the tractor chassis can adapt to various terrains to a great extent, and the inclination degree of the tractor body is reduced.
Description
Technical Field
The invention belongs to the technical field of tractors, and particularly relates to an adjustable crawler travel mechanism and a tractor.
Background
As the rice field is in a water-soaked and wet state for a long time, soil in the field is soft, soil feet in the field become deeper and deeper, and the situations of slipping, sinking and the like easily occur when agricultural machinery operates in the field; present track-mounted machine is when the field operation, owing to adopt the track walking, area of contact is big, ground connection specific pressure is little, stride enough can be good, so to the field, the destructiveness of road is little, but among the tractor running gear of current track, the track of taking the ground clearance regulatory function is few, ordinary track-mounted machine is when crossing the ridge, because the track is a straight track on area of contact, can lead to track-mounted machine to take place very big slope on the horizontal direction, seriously influence track-mounted machine's the security of crossing the ridge.
Based on the technical problems existing in the crawler tractor, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
The invention aims to provide an adjustable crawler travel mechanism and a tractor aiming at overcoming the defects in the prior art, and aims to solve the problem that the conventional crawler tractor cannot adapt to various working road conditions during operation.
The invention provides an adjustable crawler traveling mechanism which comprises a crawler, a chassis, a frame, a ground clearance adjusting connecting rod, a driving wheel, a tensioning wheel sliding pair, a guide wheel sliding pair, a supporting wheel and a ground clearance adjusting hydraulic cylinder group, wherein the chassis is arranged on the chassis; the ground clearance adjusting connecting rod is arranged in the track in the vertical direction, and the driving wheel and the thrust wheel are respectively arranged at two ends of the ground clearance adjusting connecting rod and are embedded on the track; the frame is arranged in the track along the horizontal direction and is connected with the ground clearance adjusting connecting rod; the tensioning wheel sliding pair and the guide wheel sliding pair are respectively arranged at two ends of the frame and are nested on the track; the chassis is arranged at the upper end of the frame along the horizontal direction, and one end of the chassis is connected with the ground clearance adjusting connecting rod; one end of the ground clearance adjusting hydraulic cylinder group is connected with the chassis, and the other end of the ground clearance adjusting hydraulic cylinder group is connected with the frame.
Further, the ground clearance adjusting hydraulic cylinder group comprises a first ground clearance adjusting hydraulic cylinder and a second ground clearance adjusting hydraulic cylinder; one end of the first ground clearance adjusting hydraulic cylinder is fixedly arranged on the frame, and the other end of the first ground clearance adjusting hydraulic cylinder is connected with the joint of the chassis and the ground clearance adjusting connecting rod; one end of the second ground clearance adjusting hydraulic cylinder is fixedly arranged on the frame, and the other end of the second ground clearance adjusting hydraulic cylinder is directly connected to the chassis.
Furthermore, the ground clearance adjusting hydraulic cylinder group is obliquely arranged between the frame and the chassis; the height of the ground clearance adjusting connecting rod in the vertical direction is adjustable so as to adjust the height of the chassis by matching with the ground clearance adjusting hydraulic cylinder group.
Furthermore, the bicycle frame also comprises a support rod which is obliquely and fixedly arranged between the bicycle frame and the chassis; one end of the second ground clearance adjusting hydraulic cylinder is fixedly connected with the frame, and the other end of the second ground clearance adjusting hydraulic cylinder is fixedly connected with the supporting rod.
Further, the device also comprises an auxiliary thrust wheel; the auxiliary supporting wheels are arranged on the track, fixedly connected with the frame through vertical supporting rods and positioned at the bottom of the frame; the vertical support rod is sleeved with a damping spring.
Further, the track rollers include two pairs; two pairs of thrust wheels are arranged outside the limiting teeth of the crawler and symmetrically arranged at two ends of the bottom of the ground clearance adjusting connecting rod through V-shaped supporting rods; the two V-shaped supporting rods are connected together through a hinge pin shaft; and a damping spring is connected between the two V-shaped supporting rods along the horizontal direction.
Furthermore, the guide wheel sliding pair comprises a guide wheel and a guide wheel adjusting hydraulic cylinder; the guide wheel adjusting hydraulic cylinder is arranged along the horizontal direction, one end of the guide wheel adjusting hydraulic cylinder is connected with the frame, and the other end of the guide wheel adjusting hydraulic cylinder is connected with the guide wheel.
Furthermore, the tensioning wheel sliding pair comprises a tensioning wheel, a threaded lever and a tensioning wheel connecting rod; the tensioning wheel is arranged at the rear end of the frame; one end of the threaded lever is connected with the tensioning wheel, and the other end of the threaded lever is connected with the frame through the universal ball; one end of the tension wheel connecting rod is connected with the tension wheel, and the other end of the tension wheel connecting rod is fixedly connected with the frame.
Further, the thrust wheels comprise a first set of thrust wheels and a second set of thrust wheels; the first group of thrust wheels are arranged at the bottom of the ground clearance adjusting connecting rod and are nested in the driving grooves of the crawler; the second group of thrust wheels are nested in the driving grooves of the crawler belts and are connected with the frame through connecting rods; the auxiliary thrust wheels are located between the first set of thrust wheels and the second set of thrust wheels.
The invention also provides a tractor, which comprises a crawler travel mechanism; the crawler belt walking mechanism is further the adjustable crawler belt walking mechanism.
By adopting the crawler belt travelling mechanism with the adjustable ground clearance, a hydraulic cylinder in the travelling mechanism can push a tractor chassis to move up or down through extension, so that the clearance between the tractor chassis and the ground is adjusted, and the adjustment of the ground clearance is realized; meanwhile, the appearance of the crawler belt is adjusted to adapt to the position relation among the driving wheel, the guide wheel, the tension wheel and the supporting wheel.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be further explained with reference to the drawings, in which:
FIG. 1 is a schematic view of an adjustable track-type undercarriage according to the present invention;
fig. 2 is a schematic view of the track structure of the present invention.
In the figure: 1. a crawler belt; 11. a track body; 12. a drive slot; 13. limiting teeth; 14. a drive tooth; 2. a drive wheel; 3. a frame; 31. a guide wheel sliding pair; 4. a hydraulic cylinder; 41. a ground clearance adjusting hydraulic cylinder group; 42. the guide wheel adjusts the hydraulic cylinder; 43. a ground clearance adjusting connecting rod; 5. a guide wheel; 6. a tension wheel; 61. a threaded lever; 62. a universal ball; 63. a tension wheel connecting rod; 7. a thrust wheel; 71. a V-shaped support rod; 72. a damping spring; 73. hinging a pin shaft; 8. an auxiliary thrust wheel; 81. a vertical support bar; 82. a damping spring; 9. a chassis.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 2, the present invention provides an adjustable crawler travel mechanism, which comprises a crawler 1, a chassis 9, a frame 3, a ground clearance adjusting link 43, a driving wheel 2, a tensioning wheel sliding pair, a guide wheel sliding pair 31, a supporting wheel 7 and a ground clearance adjusting hydraulic cylinder group 41; the ground clearance adjusting connecting rod 43 is arranged in the crawler 1 along the vertical direction, and the driving wheel 2 and the thrust wheel 7 are respectively arranged at two ends of the ground clearance adjusting connecting rod 43 and are embedded in the limiting groove 12 of the crawler 1; the frame 3 is arranged in the crawler 1 along the horizontal direction and is connected with the ground clearance adjusting connecting rod 43; the tensioning wheel sliding pair and the guide wheel sliding pair are respectively arranged at two ends of the frame 3 and are nested in the limiting groove 12 of the track 1; the chassis 9 is arranged at the upper end of the frame 3 along the horizontal direction, and one end of the chassis is connected with the tail part of the ground clearance adjusting connecting rod 43; one end of the ground clearance adjusting hydraulic cylinder group 41 is connected with the chassis 9, and the other end is connected with the frame 3; specifically, the ground clearance adjusting hydraulic cylinder group 41 comprises a hydraulic cylinder 4, and the hydraulic cylinder 4 can be telescopically arranged to adjust the vertical height of the chassis 9; further, as shown in fig. 2, the caterpillar on the adjustable caterpillar running mechanism of the invention is a triangular caterpillar, and the caterpillar is a rubber caterpillar, and the rubber caterpillar comprises driving teeth 14 and limiting teeth 13; the driving teeth 14 are arranged on the outer side of the crawler 1 and used for driving walking; the limiting teeth 13 are arranged in two rows on the inner side of the crawler 1 to form limiting grooves 12; the driving wheel 2, the tension wheel sliding pair, the guide wheel sliding pair and the thrust wheel 7 are arranged in the limiting groove 12 of the track 1 and are used for driving and adjusting the whole travelling mechanism, so that the tractor runs more stably and reasonably; the triangular crawler belt walking mechanism provided by the invention can realize adjustment of ground clearance, is suitable for complex terrains to a greater extent, and can adapt to deeper mud feet by increasing the ground clearance.
Preferably, in combination with the above solutions, as shown in fig. 1 to 2, in the present embodiment, the ground clearance adjusting hydraulic cylinder group 41 includes a first ground clearance adjusting hydraulic cylinder and a second ground clearance adjusting hydraulic cylinder; the first ground clearance adjusting hydraulic cylinder and the second ground clearance adjusting hydraulic cylinder are arranged between the chassis 9 and the frame 3 and are used for adjusting the height of the chassis relative to the ground; one end of the first ground clearance adjusting hydraulic cylinder is fixedly arranged on the frame 3, and the other end of the first ground clearance adjusting hydraulic cylinder is connected with the joint of the chassis 9 and the ground clearance adjusting connecting rod 43; second ground clearance adjustment pneumatic cylinder one end is fixed to be set up on frame 3, and its other end lug connection is on chassis 9 for first ground clearance adjustment pneumatic cylinder and second ground clearance adjustment pneumatic cylinder strong point are more even like this, can be more balanced when adjusting the chassis height.
Preferably, in combination with the above solution, as shown in fig. 1, the present embodiment further includes a strut, and the strut is obliquely and fixedly disposed between the frame 3 and the chassis 9; one end of the second ground clearance adjusting hydraulic cylinder is fixedly connected with the frame 3, and the other end of the second ground clearance adjusting hydraulic cylinder is fixedly connected with the supporting rod; further, the ground clearance adjusting hydraulic cylinder group 41 is obliquely arranged between the frame 3 and the chassis 9; the height of the ground clearance adjusting connecting rod 43 along the vertical direction is adjustable so as to adjust the height of the chassis 3 by matching with the ground clearance adjusting hydraulic cylinder group 41; by adopting the scheme, the adjustable crawler travel mechanism provided by the invention can adjust the height of the chassis more stably and more firmly.
Preferably, in combination with the above scheme, as shown in fig. 1 to 2, in this embodiment, an auxiliary thrust wheel 8 is further included; the auxiliary thrust wheel 8 is arranged on the crawler 1, is fixedly connected with the frame 3 through a vertical support rod 81, and is positioned in a limiting groove 12 of the crawler 1 at the bottom of the frame 3; a damping spring 82 is sleeved on the vertical supporting rod 81; specifically, the auxiliary thrust wheel 8 does not work under normal conditions, the distance between the bottom of the auxiliary thrust wheel 8 and the rubber track is 20-30mm, and the damping spring 82 is in a slight stretching state; when running gear is in the state of crossing obstacles, the rubber track oppresses supplementary thrust wheel, and supplementary thrust wheel plays the supporting role this moment, and damping spring is in compression state this moment to improve supplementary effect, make running gear more stable.
Preferably, in combination with the above scheme, as shown in fig. 1 to 2, in the present embodiment, the track roller 7 includes two pairs; the two pairs of thrust wheels 7 are mutually matched and arranged outside and inside the limiting teeth 13 of the crawler 1 and are symmetrically arranged at the two ends of the bottom of the ground clearance adjusting connecting rod 43 through V-shaped supporting rods 71; the two V-shaped supporting rods 43 are connected together through a hinge pin 73; the middle position between the two V-shaped support rods 71 is connected with a damping spring 72 along the horizontal direction, and the damping spring 72 is arranged at the middle position of the V-shaped support rods 71 and is in a compression state for a long time so as to balance the running of the whole thrust wheel 7.
Preferably, in combination with the above solution, as shown in fig. 1 to 2, in the present embodiment, the guide wheel sliding pair 31 includes a guide wheel 5 and a guide wheel adjusting hydraulic cylinder 42; the guide wheel adjusting hydraulic cylinder 42 is arranged along the horizontal direction, one end of the guide wheel adjusting hydraulic cylinder is connected with the frame 3, and the other end of the guide wheel adjusting hydraulic cylinder is connected with the guide wheel 5; specifically, a guide wheel 5 is installed in front of the frame 3 and can slide back and forth on the frame 3, and a hydraulic cylinder 4 is connected between the frame 3 and the guide wheel 5 for adjusting the position of the front guide wheel 5.
Preferably, in combination with the above solution, as shown in fig. 1 to 2, in the present embodiment, the tensioning wheel sliding pair includes a tensioning wheel 6, a threaded lever 61, and a tensioning wheel connecting rod 63; the tension wheel 6 is arranged at the rear end of the frame 3; one end of the threaded lever 61 is connected with the tension wheel 6, and the other end thereof is connected with the frame 3 through the universal ball 62; one end of the tension wheel connecting rod 63 is connected with the tension wheel 6, and the other end thereof is fixedly connected with the frame 3; specifically, the tensioning wheel sliding pair adjusts the front-back distance of the tensioning wheel by rotating the lead screw connecting rod, so that the rubber track is pre-tightened, and the walking mechanism is more stable.
Preferably, in combination with the above solution, as shown in fig. 1 to 2, in the present embodiment, the track roller 7 includes a first set of track rollers and a second set of track rollers; the first group of thrust wheels are arranged at the bottom of the ground clearance adjusting connecting rod 43 and are nested in the driving groove 12 of the crawler 1; the second group of thrust wheels are nested in the driving grooves 2 of the crawler 1 and are directly connected with the frame 3 through connecting rods; further, the auxiliary bogie wheels 8 are located between the first set of bogie wheels and the second set of bogie wheels; specifically, four of the two sets of thrust wheels 7 are arranged below the frame 3, each thrust wheel 7 is connected with a V-shaped support rod 71, the lower ends of the two V-shaped support rods 71 are connected to the frame 3, and the upper ends of the two V-shaped support rods are connected to two ends of a damping spring 72, so that a set of thrust wheels 7 is formed; the auxiliary thrust wheel 8 is connected to a vertical support rod 81, a damping spring 82 is sleeved on the vertical support rod 81, and then the auxiliary thrust wheel is connected to the frame 3 through the vertical support rod 81.
Correspondingly, in combination with the scheme, the invention also provides a tractor which comprises a crawler travelling mechanism, wherein the crawler travelling mechanism is an adjustable crawler travelling mechanism. The tail part of a tractor chassis of the travelling mechanism is embedded on an integral beam frame of the crawler, and is connected with the beam frame of the travelling mechanism through a group of hydraulic cylinders, and the middle part of the chassis is connected with the beam frame of the travelling mechanism through a connecting rod.
By adopting the technical scheme, the ground clearance adjusting function of the tractor can be realized, and different ground clearance heights can be adjusted according to different working environments; meanwhile, the high ground clearance adjustment also improves the obstacle crossing performance of the tractor; when crossing the ridge, rotatory around the round pin axle through the thrust wheel, supplementary thrust wheel compression spring, adaptation topography that can the very big degree reduces the slope degree of tractor automobile body for the tractor operation is more stable.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (8)
1. An adjustable crawler traveling mechanism is characterized by comprising a crawler, a chassis, a frame, a ground clearance adjusting connecting rod, a driving wheel, a tensioning wheel sliding pair, a guide wheel sliding pair, a supporting wheel and a ground clearance adjusting hydraulic cylinder group; the ground clearance adjusting connecting rod is arranged in the crawler belt along the vertical direction; the driving wheel and the thrust wheel are respectively arranged at two ends of the ground clearance adjusting connecting rod and are nested on the track; the ground clearance adjusting hydraulic cylinder group is obliquely arranged between the frame and the chassis; the frame is arranged in the track along the horizontal direction and is connected with the ground clearance adjusting connecting rod; the tensioning wheel sliding pair and the guide wheel sliding pair are respectively arranged at two ends of the frame and are nested on the track; the chassis is arranged at the upper end of the frame along the horizontal direction, and one end of the chassis is connected with the ground clearance adjusting connecting rod; one end of the ground clearance adjusting hydraulic cylinder group is connected with the chassis, the other end of the ground clearance adjusting hydraulic cylinder group is connected with the frame, and the ground clearance adjusting hydraulic cylinder group comprises a first ground clearance adjusting hydraulic cylinder and a second ground clearance adjusting hydraulic cylinder; one end of the first ground clearance adjusting hydraulic cylinder is fixedly arranged on the frame, and the other end of the first ground clearance adjusting hydraulic cylinder is connected with the joint of the chassis and the ground clearance adjusting connecting rod; one end of the second ground clearance adjusting hydraulic cylinder is fixedly arranged on the frame, and the other end of the second ground clearance adjusting hydraulic cylinder is directly connected to the chassis; the height of the ground clearance adjusting connecting rod is adjustable along the vertical direction so as to be matched with the ground clearance adjusting hydraulic cylinder group to adjust the height of the chassis.
2. The adjustable crawler travel mechanism of claim 1, further comprising a strut, said strut being fixedly disposed between said frame and said chassis at an angle; one end of the second ground clearance adjusting hydraulic cylinder is fixedly connected with the frame, and the other end of the second ground clearance adjusting hydraulic cylinder is fixedly connected with the supporting rod.
3. The adjustable crawler travel mechanism of claim 1, further comprising auxiliary track wheels; the auxiliary supporting wheels are arranged on the track, are fixedly connected with the frame through vertical supporting rods and are positioned at the bottom of the frame; and the vertical support rod is sleeved with a damping spring.
4. The adjustable crawler travel mechanism of claim 1, wherein the track rollers comprise two pairs; the two pairs of thrust wheels are arranged outside the limiting teeth of the crawler belt and are symmetrically arranged at two ends of the bottom of the ground clearance adjusting connecting rod through V-shaped supporting rods; the two V-shaped supporting rods are connected together through a hinge pin shaft; and a damping spring is connected between the two V-shaped supporting rods along the horizontal direction.
5. The adjustable crawler belt unit of claim 1, wherein the guide wheel sliding pair comprises a guide wheel and a guide wheel adjusting hydraulic cylinder; the guide wheel adjusting hydraulic cylinder is arranged along the horizontal direction, one end of the guide wheel adjusting hydraulic cylinder is connected with the frame, and the other end of the guide wheel adjusting hydraulic cylinder is connected with the guide wheel.
6. The adjustable track travel mechanism of claim 1, wherein the idler pulley slide pair comprises an idler pulley, a threaded lever, and an idler link; the tensioning wheel is arranged at the rear end of the frame; one end of the threaded lever is connected with the tensioning wheel, and the other end of the threaded lever is connected with the frame through a universal ball; one end of the tension wheel connecting rod is connected with the tension wheel, and the other end of the tension wheel connecting rod is fixedly connected with the frame.
7. The adjustable crawler travel mechanism of claim 3, wherein the track rollers comprise a first set of track rollers and a second set of track rollers; the first group of thrust wheels are arranged at the bottom of the ground clearance adjusting connecting rod and are nested in the driving groove of the crawler; the second group of thrust wheels are nested in the driving grooves of the crawler and are connected with the frame through connecting rods; the auxiliary bogie wheels are located between the first set of bogie wheels and the second set of bogie wheels.
8. A tractor comprises a crawler belt walking mechanism; -wherein the crawler-belt is an adjustable crawler-belt according to any of the claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212333.0A CN108100066B (en) | 2017-11-27 | 2017-11-27 | Adjustable crawler travel mechanism and tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212333.0A CN108100066B (en) | 2017-11-27 | 2017-11-27 | Adjustable crawler travel mechanism and tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108100066A CN108100066A (en) | 2018-06-01 |
| CN108100066B true CN108100066B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711212333.0A Active CN108100066B (en) | 2017-11-27 | 2017-11-27 | Adjustable crawler travel mechanism and tractor |
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| Country | Link |
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| CN (1) | CN108100066B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791553A (en) * | 2018-07-19 | 2018-11-13 | 湖北聚注通用技术研究有限公司 | A kind of base mechanism for Intelligent meal delivery robot |
| CN109204589B (en) * | 2018-09-14 | 2024-03-01 | 河北农业大学 | Remote control crawler chassis and control method thereof |
| CN110481662A (en) * | 2019-09-24 | 2019-11-22 | 履地科技(天津)有限公司 | A kind of adjustable rubber belt track wheel of ground pressure |
| CN111547146A (en) * | 2020-03-27 | 2020-08-18 | 金华职业技术学院 | Crawler belt specific pressure self-adaptive mechanism |
| TWI804146B (en) * | 2022-01-05 | 2023-06-01 | 正修學校財團法人正修科技大學 | Tracked vehicle with two-way shock absorber |
| CN115123503A (en) * | 2022-07-29 | 2022-09-30 | 中国海洋大学 | All-terrain seabed mining vehicle walking device |
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| CN105292284A (en) * | 2014-05-29 | 2016-02-03 | 贺炳松 | Crawler-type chassis for agricultural machine |
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| WO2016133851A1 (en) * | 2015-02-18 | 2016-08-25 | Ati, Inc. | Track-module bogie-suspension system |
| CN106553712A (en) * | 2015-09-29 | 2017-04-05 | 于平 | A kind of deformable crawler unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09275752A (en) * | 1996-04-18 | 1997-10-28 | Iseki & Co Ltd | Traveling device for working machine |
| CN101138992A (en) * | 2006-09-07 | 2008-03-12 | G·布拉齐尔 | Terrain conforming track assembly |
| CN200988514Y (en) * | 2006-12-11 | 2007-12-12 | 季东山 | Crawler tractor of liftable machine body |
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| CN108100066A (en) | 2018-06-01 |
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Address after: 241080 Anhui province Wuhu City mountain Economic Development Zone E Xi Road No. 16 Patentee after: Zhonglian Agricultural Machinery Co., Ltd Address before: 241080 Anhui province Wuhu City mountain Economic Development Zone E Xi Road No. 16 Patentee before: ZOOMLION HEAVY MACHINERY Co.,Ltd. |