CN110588488B - Tractor structure for large-sized scrapped automobile and using method - Google Patents
Tractor structure for large-sized scrapped automobile and using method Download PDFInfo
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- CN110588488B CN110588488B CN201910942557.XA CN201910942557A CN110588488B CN 110588488 B CN110588488 B CN 110588488B CN 201910942557 A CN201910942557 A CN 201910942557A CN 110588488 B CN110588488 B CN 110588488B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/14—Draw-gear or towing devices characterised by their type
- B60D1/145—Draw-gear or towing devices characterised by their type consisting of an elongated single bar or tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/58—Auxiliary devices
- B60D1/66—Props
- B60D1/665—Props comprising supporting wheels, e.g. dollies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
- B60P3/07—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying road vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/56—Reuse, recycling or recovery technologies of vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
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- Handcart (AREA)
Abstract
The invention provides a tractor structure for a large-sized scrapped automobile and a use method thereof. The tractor structure can be used for traction of large-sized scraped automobiles in the disassembly process.
Description
Technical Field
The invention relates to the field of scrapped automobiles, in particular to a tractor structure for a large scrapped automobile and a using method thereof.
Background
The cart is scrapped and disassembled in the pretreatment working section, various oil and gas and the like can be discharged, so that the automobile is difficult to turn or can not turn due to the fact that the power is lost in the turning process, and secondly, the cart is more than ten tons in weight and more than ten meters in length, and the cart is very difficult to move. The vehicle needs to be moved, at present, the traction device is temporarily not available in the market, and is mainly pushed or pulled by a forklift or a fault tractor, and meanwhile, a waste vehicle cab needs to be responsible for steering. At present, the scrapped cart is towed or moved, and the following defects exist:
(1) At least 2 people or more.
(2) The steering is difficult, and the steering can be completed only by repeatedly moving back and forth.
(3) The ground is damaged, if the wheels are airless, the wheels can only be pulled on the ground hard.
Disclosure of Invention
In order to solve the technical problems, the invention provides a tractor structure for a large-sized scrapped automobile and a use method thereof.
In order to achieve the technical characteristics, the aim of the invention is realized in the following way: the tractor structure for the large-scale scraped car comprises a main traction rod, wherein one end of the main traction rod is connected with a travelling wheel structure through a hooking shaft and a hooking plate, the top of the travelling wheel structure is fixedly provided with a lifting mechanism, and the lifting mechanism is connected with a power device for providing lifting power.
The head of the main traction rod is fixedly provided with a traction hook which is used for being connected with a traction power device, and handles are arranged at different positions of the main traction rod.
The middle part of main traction lever is installed auxiliary supporting wheel structure, auxiliary supporting wheel structure includes the auxiliary wheel carrier that articulates on main traction lever through first round pin axle, auxiliary wheel is installed through auxiliary wheel axle support to auxiliary wheel carrier's bottom end, articulates on the lateral wall of auxiliary wheel carrier's top middle part has the connecting rod, the other end of connecting rod articulates on the arm of a crank through the round pin axle, the arm of a crank articulates on the fixed hoop through the round pin axle, fixed hoop fixed mounting is on main traction lever.
The walking wheel structure comprises a frame, bearing wheels are symmetrically arranged on two sides of the frame, a small supporting wheel is arranged at the bottom of the frame, a rotary bearing mechanism for installing a lifting mechanism is arranged at the top of the frame, a hooking groove matched with a hooking shaft is formed in a vertical plate of the frame, and a matching hooking shaft matched with the hooking plate is arranged between the two vertical plates.
The lifting mechanism comprises a main supporting plate, two ends of the main supporting plate are respectively hinged with a lifting base through a parallelogram structure, symmetrically arranged wheel supporting plates are fixed on the lifting bases, lifting oil cylinders are arranged between the main supporting plate and the parallelogram structure, and the lifting oil cylinders are connected with a power device and provide lifting power.
The parallelogram structure comprises a first rotating shaft, wherein the first rotating shaft is hinged to the top edge of a main support plate, a first connecting rod is hinged to the first rotating shaft, a second rotating shaft is hinged to the other end of the first connecting rod, a third rotating shaft is hinged to the main support plate and located below the first rotating shaft, a connecting plate is hinged to the third rotating shaft, the other end of the connecting plate is hinged to the lifting base through a fourth rotating shaft, the bottom of a cylinder body of the lifting cylinder is hinged to the bottom of the main support plate, and the tail end of a piston rod of the lifting cylinder is hinged to the fourth rotating shaft.
The power device comprises a manual hydraulic pump fixed on the main traction rod, a manual operating rod is arranged on the manual hydraulic pump, and the manual hydraulic pump is connected with a lifting cylinder of the lifting mechanism through a hydraulic oil pipe and drives the lifting cylinder to act.
The main traction rod is made of thick-wall seamless steel pipe materials, a pump body installation seat for fixing a manual hydraulic pump of the power device is arranged on the pipe wall, and an oil pipe clamp for fixing a hydraulic oil pipe is fixed on the main traction rod from the pump body installation seat to a hook shaft in a certain length.
The use mode of the tractor structure for large scrapped vehicle traction comprises the following steps:
step1: preprocessing the scrapped vehicle, and after preprocessing is completed;
step2: the lifting mechanism of the tractor structure is arranged below the corresponding parts of the front axle of the vehicle, and is positioned in the middle of the vehicle, and the crank arm is operated, so that the auxiliary wheel in the middle of the main traction rod falls down, and the lifting mechanism is ensured to be as horizontal as possible;
step3: lifting or lifting equipment is used for lifting, so that the front axle or the front independent suspension and other support parts of the vehicle fall above the tractor structure, and two wheels fall above the lifting mechanism;
step4: after checking the problem-free manual operating rod of the hydraulic pump, driving the lifting mechanism to lift through the manual hydraulic pump, and further lifting the front wheels on two sides through the lifting mechanism to prevent the vehicle from falling down;
step5: the front part of the main traction rod is connected with a traction vehicle by a traction hook, and a crank arm is operated to retract an auxiliary wheel;
step6: the truck is then towed to a designated location according to the production needs or process flow.
The invention has the following beneficial effects:
1. the tractor structure through above-mentioned structure can be used for scrapping large-scale car and disassembles the in-process, and the traction of car removes and uses, and it can avoid because the steering mechanism of tractor is demolishd the difficult problem of traction that leads to, can lift the car through foretell lifting mechanism moreover, and then guarantees to pull the in-process, and the car can leave ground, can guarantee normal removal through power device moreover.
2. The traction hook with the structure can be connected with a tractor, and then the tractor drives the whole main traction rod to move.
3. Through foretell auxiliary stay wheel structure, can carry out auxiliary stay to main traction lever, can assist the supporting height who adjusts auxiliary stay wheel through the arm of cranking moreover.
4. The wheel structure can play a role in supporting bearing, and the whole walking wheel structure can be ensured to be in a stable supporting state through the small supporting wheels.
5. The main traction rod is a detachable part, and can be selectively assembled together or separately placed according to the production requirement, so that the occupied area is reduced.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is a schematic three-dimensional structure of the present invention.
Fig. 2 is a schematic three-dimensional structure of the main traction rod of the present invention.
Fig. 3 is a schematic three-dimensional structure of a lifting mechanism according to the present invention.
Fig. 4 is a schematic three-dimensional structure of the travelling wheel structure of the invention.
In the figure: traction hook 1, handle 2, main traction rod 3, crank arm 4, connecting rod 5, fixed hoop 6, first pin shaft 7, auxiliary wheel frame 8, auxiliary wheel shaft 9, auxiliary wheel 10, manual operation rod 11, manual hydraulic pump 12, hydraulic oil pipe 13, lifting mechanism 14, walking wheel structure 15, oil pipe clamp 16, hooking plate 17, hooking shaft 18 and pump body mounting seat 19;
a main support plate 1401, a first shaft 1402, a first link 1403, a link plate 1404, a second shaft 1405, a third shaft 1406, a fourth shaft 1407, a lifting base 1408, and a wheel support plate 1409;
the rotary bearing mechanism 1501, the bearing wheel 1502, the hooking groove 1503, the matched hooking shaft 1504, the frame 1505 and the supporting small wheel 1506.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-4, a tractor structure for a large-sized scrapped car comprises a main traction rod 3, wherein one end of the main traction rod 3 is connected with a travelling wheel structure 15 through a hooking shaft 18 and a hooking plate 17, a lifting mechanism 14 is fixed on the top of the travelling wheel structure 15, and the lifting mechanism 14 is connected with a power device for providing lifting power. The tractor structure through above-mentioned structure can be used for scrapping large-scale car and disassembles the in-process, and the traction of car removes and uses, and it can avoid because the steering mechanism of tractor is demolishd the difficult problem of traction that leads to, can lift the car through foretell lifting mechanism 14 moreover, and then guarantees to pull the in-process, and the car can leave ground, can guarantee normal removal through power device moreover.
Further, a traction hook 1 used for being connected with a traction power device is fixedly arranged on the head of the main traction rod 3, and handles 2 are arranged at different positions of the main traction rod 3. The traction hook 1 with the structure can be connected with a tractor, and then the tractor drives the whole main traction rod 3 to move.
Further, an auxiliary supporting wheel structure is arranged in the middle of the main traction rod 3, the auxiliary supporting wheel structure comprises an auxiliary wheel frame 8 hinged on the main traction rod 3 through a first pin shaft 7, an auxiliary wheel 10 is arranged at the bottom tail end of the auxiliary wheel frame 8 through an auxiliary wheel shaft 9 in a supporting mode, a connecting rod 5 is hinged on the side wall of the middle portion of the top of the auxiliary wheel frame 8, the other end of the connecting rod 5 is hinged on a crank arm 4 through a pin shaft, the crank arm 4 is hinged on a fixed hoop 6 through a pin shaft, and the fixed hoop 6 is fixedly arranged on the main traction rod 3. Through the auxiliary supporting wheel structure, the main traction rod 3 can be supported in an auxiliary way, and the supporting height of the auxiliary wheel 10 can be adjusted in an auxiliary way through the crank arm 4.
Further, the travelling wheel structure 15 includes a frame 1505, bearing wheels 1502 are symmetrically arranged on two sides of the frame 1505, a small supporting wheel 1506 is installed at the bottom of the frame 1505, a rotary bearing mechanism 1501 for installing the lifting mechanism 14 is arranged at the top of the frame 1505, a hooking groove 1503 for being matched with the hooking shaft 18 is machined on a vertical plate of the frame 1505, and a matched hooking shaft 1504 for being matched with the hooking plate 17 is arranged between the two vertical plates. The wheel structure 15 can play a role in supporting bearing, and the whole travelling wheel structure 15 can be in a stable supporting state through the small supporting wheels 1506.
Further, the lifting mechanism 14 includes a main supporting plate 1401, two ends of the main supporting plate 1401 are respectively hinged with a lifting base 1408 through a parallelogram structure, symmetrically arranged wheel supporting plates 1409 are fixed on the lifting base 1408, and a lifting cylinder is arranged between the main supporting plate 1401 and the parallelogram structure, and is connected with a power device and provides lifting power. Further, the parallelogram structure includes a first rotating shaft 1402, the first rotating shaft 1402 is hinged on the top edge of the main support plate 1401, a first link 1403 is hinged on the first rotating shaft 1402, a second rotating shaft 1405 is hinged on the other end of the first link 1403, the second rotating shaft 1405 is hinged on the lifting base 1408, a third rotating shaft 1406 is hinged on the main support plate 1401 and below the first rotating shaft 1402, a connecting plate 1404 is hinged on the third rotating shaft 1406, the other end of the connecting plate 1404 is hinged on the lifting base 1408 through a fourth rotating shaft 1407, the bottom of the cylinder body of the lifting cylinder is hinged on the bottom of the main support plate 1401, and the tail end of the piston rod of the lifting cylinder is hinged on the fourth rotating shaft 1407. The lifting mechanism can play a role of lifting,
further, the power device comprises a manual hydraulic pump 12 fixed on the main traction rod 3, a manual operating rod 11 is arranged on the manual hydraulic pump 12, and the manual hydraulic pump 12 is connected with a lifting cylinder of a lifting mechanism 14 through a hydraulic oil pipe 13 and drives the lifting cylinder to act.
Furthermore, the main traction rod 3 is made of thick-wall seamless steel pipe materials, a pump body mounting seat 19 for fixing the manual hydraulic pump 12 of the power device is arranged on the pipe wall, and an oil pipe clamp 16 for fixing the hydraulic oil pipe 13 is fixed on the main traction rod 3 from the pump body mounting seat 19 to the hooking shaft 18 in a section of length.
Further, the manual hydraulic pump 12 is a hydraulic component commonly used in the market, is convenient to maintain and low in price, mainly comprises a manual operation pump, a hydraulic pipeline and the like, and is convenient to disassemble and assemble due to the fact that the hydraulic pipeline is fully assembled with a quick connector, and the assembling position can be moved according to requirements.
Further, the main traction rod 3 is mainly a large seamless steel pipe, the front part is clamped with the travelling wheel structure 15, the operation is simple, the auxiliary wheel 10 is arranged in the middle, the height is adjustable, and the traction hook 1 is arranged at the rear part, so that the traction is convenient. The main traction rod 3 is a detachable component, and is selectively assembled together or separately placed according to the production requirement, so that the occupied area is reduced.
Furthermore, the two sides of the lifting mechanism 14 are of parallelogram structures, two small single-acting oil cylinders are assembled in the lifting mechanism, and the oil port is provided with a quick connector, so that the connection and the disconnection of the oil pipe are facilitated, and the lifting of the two sides is mainly completed through the oil cylinders.
Furthermore, the travelling wheel structure 15 mainly comprises a rotary support, the rotary support is a mature product, the country also has corresponding technical standards, the bearing rotation and the like are free of problems, the travelling wheel structure is safe and reliable, and the lifting device above and the travelling mechanism below can rotate relatively by 360 degrees through the rotary support. The travelling wheel structure 15 mainly comprises a set of wheels and travelling mechanism welding parts, wherein the wheels are manufactured by special suppliers, and the travelling wheel structure is simple in structure and heavy in bearing.
Example 2:
the use mode of the tractor structure for large scrapped vehicle traction comprises the following steps:
step1: preprocessing the scrapped vehicle, and after preprocessing is completed;
step2: the lifting mechanism of the tractor structure is arranged below the corresponding parts of the front axle of the vehicle, and is positioned in the middle of the vehicle, and the crank arm 4 is operated, so that the auxiliary wheel 10 in the middle of the main traction rod falls down, and the lifting mechanism is ensured to be as horizontal as possible;
step3: lifting or lifting equipment is used for lifting, so that the front axle or the front independent suspension and other supporting parts of the vehicle fall above the tractor structure, and two wheels fall above the lifting mechanism 14;
step4: after checking the problem-free manual operating rod 11 of the hydraulic pump, driving the lifting mechanism 14 to lift through the manual hydraulic pump 12, and further lifting front wheels on two sides through the lifting mechanism 14 to prevent the vehicle from falling down;
step5: the front part of the main traction rod 3 is connected with a traction vehicle by a traction hook 1, and the crank arm 4 is operated to retract the auxiliary wheel 10;
step6: the truck is then towed to a designated location according to the production needs or process flow.
Claims (5)
1. A tractor structure for large-scale scraped car, its characterized in that: the lifting device comprises a main traction rod (3), wherein one end of the main traction rod (3) is connected with a travelling wheel structure (15) through a hooking shaft (18) and a hooking plate (17), a lifting mechanism (14) is fixed at the top of the travelling wheel structure (15), and the lifting mechanism (14) is connected with a power device for providing lifting power;
the head of the main traction rod (3) is fixedly provided with a traction hook (1) which is used for being connected with a traction power device, and different parts of the main traction rod (3) are provided with handles (2);
the lifting mechanism (14) comprises a main support plate (1401), wherein two ends of the main support plate (1401) are respectively hinged with a lifting base (1408) through a parallelogram structure, symmetrically arranged wheel support plates (1409) are fixed on the lifting bases (1408), lifting oil cylinders are arranged between the main support plate (1401) and the parallelogram structure, and the lifting oil cylinders are connected with a power device and provide lifting power;
the parallelogram structure comprises a first rotating shaft (1402), wherein the first rotating shaft (1402) is hinged to the top edge of a main supporting plate (1401), a first connecting rod (1403) is hinged to the first rotating shaft (1402), a second rotating shaft (1405) is hinged to the other end of the first connecting rod (1403), the second rotating shaft (1405) is hinged to a lifting base (1408), a third rotating shaft (1406) is hinged to the main supporting plate (1401) and located below the first rotating shaft (1402), a connecting plate (1404) is hinged to the third rotating shaft (1406), the other end of the connecting plate (1404) is hinged to the lifting base (1408) through a fourth rotating shaft (1407), the bottom of a cylinder body of the lifting cylinder is hinged to the bottom of the main supporting plate (1401), and the tail end of a piston rod of the lifting cylinder is hinged to the fourth rotating shaft (1407).
2. The tractor structure for large-sized scraped car according to claim 1 characterized in that: the middle part of main traction lever (3) is installed auxiliary supporting wheel structure, auxiliary supporting wheel structure includes auxiliary wheel carrier (8) articulated on main traction lever (3) through first round pin axle (7), auxiliary wheel carrier (8) bottom end is through auxiliary wheel axle (9) support installation auxiliary wheel (10), articulates on the lateral wall of auxiliary wheel carrier (8) top middle part has connecting rod (5), the other end of connecting rod (5) articulates on crank arm (4) through the round pin axle, crank arm (4) articulates on fixed hoop (6) through the round pin axle, fixed hoop (6) fixed mounting is on main traction lever (3).
3. The tractor structure for large-sized scraped car according to claim 1 characterized in that: the walking wheel structure (15) comprises a frame (1505), bearing wheels (1502) are symmetrically arranged on two sides of the frame (1505), a small supporting wheel (1506) is installed at the bottom of the frame (1505), a rotary bearing mechanism (1501) for installing a lifting mechanism (14) is arranged at the top of the frame (1505), a hooking groove (1503) matched with a hooking shaft (18) is formed in a vertical plate of the frame (1505), and a matched hooking shaft (1504) matched with a hooking plate (17) is arranged between the two vertical plates.
4. The tractor structure for large-sized scraped car according to claim 1 characterized in that: the power device comprises a manual hydraulic pump (12) fixed on the main traction rod (3), a manual operating rod (11) is arranged on the manual hydraulic pump (12), and the manual hydraulic pump (12) is connected with a lifting cylinder of a lifting mechanism (14) through a hydraulic oil pipe (13) and drives the lifting cylinder to act.
5. The tractor structure for large-sized scraped car according to claim 1 characterized in that: the main traction rod (3) is made of thick-wall seamless steel pipe materials, a pump body mounting seat (19) for fixing a manual hydraulic pump (12) of the power device is arranged on the pipe wall, and an oil pipe clamp (16) for fixing a hydraulic oil pipe (13) is fixed on the main traction rod (3) from the pump body mounting seat (19) to a hook shaft (18) in one length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942557.XA CN110588488B (en) | 2019-09-30 | 2019-09-30 | Tractor structure for large-sized scrapped automobile and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942557.XA CN110588488B (en) | 2019-09-30 | 2019-09-30 | Tractor structure for large-sized scrapped automobile and using method |
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| CN110588488A CN110588488A (en) | 2019-12-20 |
| CN110588488B true CN110588488B (en) | 2023-05-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CL2019002914A1 (en) * | 2019-10-14 | 2019-12-27 | Del Alto Producciones Spa | Automated towing system |
| CN116620411B (en) * | 2023-05-08 | 2024-08-13 | 山东盛润汽车有限公司 | Humpback type transport tractor frame device |
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| CN201317304Y (en) * | 2008-12-17 | 2009-09-30 | 常州中汽商用汽车有限公司 | Back bracket arm mechanism for road wrecker |
| CN204263997U (en) * | 2014-12-11 | 2015-04-15 | 尹旭日 | A kind of road obstacle clearing vehicle |
| CN204279699U (en) * | 2014-12-15 | 2015-04-22 | 杨东方 | A kind of rescue maintenance trailer towing carriage |
| CN204801440U (en) * | 2015-05-29 | 2015-11-25 | 比亚迪股份有限公司 | Traction lever subassembly |
| CN109159631A (en) * | 2018-09-18 | 2019-01-08 | 江苏金坛长荡湖新能源科技有限公司 | A kind of material frame towing mechanism |
| CN208731099U (en) * | 2018-08-27 | 2019-04-12 | 常德高迈新能源科技有限公司 | A kind of traction transfer device for automobile chassis general assembly |
| CN110217061A (en) * | 2019-07-26 | 2019-09-10 | 衡阳合力工业车辆有限公司 | Trailer and transport vehicle |
| CN110239730A (en) * | 2019-07-09 | 2019-09-17 | 郑州飞机装备有限责任公司 | A kind of bomb truck |
| CN210591582U (en) * | 2019-09-30 | 2020-05-22 | 湖北力帝机床股份有限公司 | Tractor structure for large scraped car |
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2019
- 2019-09-30 CN CN201910942557.XA patent/CN110588488B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981000086A1 (en) * | 1979-06-27 | 1981-01-22 | S Kalmanson | Vehicle towing apparatus |
| CN201317304Y (en) * | 2008-12-17 | 2009-09-30 | 常州中汽商用汽车有限公司 | Back bracket arm mechanism for road wrecker |
| CN204263997U (en) * | 2014-12-11 | 2015-04-15 | 尹旭日 | A kind of road obstacle clearing vehicle |
| CN204279699U (en) * | 2014-12-15 | 2015-04-22 | 杨东方 | A kind of rescue maintenance trailer towing carriage |
| CN204801440U (en) * | 2015-05-29 | 2015-11-25 | 比亚迪股份有限公司 | Traction lever subassembly |
| CN208731099U (en) * | 2018-08-27 | 2019-04-12 | 常德高迈新能源科技有限公司 | A kind of traction transfer device for automobile chassis general assembly |
| CN109159631A (en) * | 2018-09-18 | 2019-01-08 | 江苏金坛长荡湖新能源科技有限公司 | A kind of material frame towing mechanism |
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| CN210591582U (en) * | 2019-09-30 | 2020-05-22 | 湖北力帝机床股份有限公司 | Tractor structure for large scraped car |
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