CN102963233B - Liftable type anti-explosion rubber-tyred vehicle chassis - Google Patents
Liftable type anti-explosion rubber-tyred vehicle chassis Download PDFInfo
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- CN102963233B CN102963233B CN201210427212.9A CN201210427212A CN102963233B CN 102963233 B CN102963233 B CN 102963233B CN 201210427212 A CN201210427212 A CN 201210427212A CN 102963233 B CN102963233 B CN 102963233B
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Abstract
The invention belongs to the technical field of a rubber-tyred vehicle chassis under a coal mine, and particularly relates to a liftable type anti-explosion rubber-tyred vehicle chassis, which solves the problem that the existing anti-explosion rubber-tyred vehicle is not suitable to be used under the condition of a thin or extremely-thin coal seam. The liftable type anti-explosion rubber-tyred vehicle chassis comprises a front rack, a rear rack, a swinging rack and a hydraulic control part. Compared with the prior art, the liftable type anti-explosion rubber-tyred vehicle chassis disclosed by the invention has the following beneficial effects that the liftable type anti-explosion rubber-tyred vehicle chassis has not only the functions of buffering and damping, but also the functions of lifting and adjusting, the problems that the popularization and the application of a common anti-explosion rubber-tyred vehicle in a thin coal seam are limited by factors such as the height of a vehicle body and the loading height of a container are solved, the liftable type anti-explosion rubber-tyred vehicle chassis is suitable for an underground anti-explosion rubber-tyred personnel transporting vehicle and an underground anti-explosion rubber-tyred material transporting vehicle, the design structure is reasonable, the damping capacity is strong, and the liftable type anti-explosion rubber-tyred vehicle chassis is particularly suitable to be used in the thin coal seam and can also be used for other vehicles.
Description
Technical field
The utility model belongs to the technical field on rubber-tired cart chassis under coal mine, is specifically related to a kind of Liftable type explosion-proof rubber tire chassis.
Background technology
Coal in China reserves are large and compose and deposit variation; wherein thin and recoverable reserves ultra-thin coal seam is about more than 60 hundred million tons; account for 18% of national coal total reserves; and output only accounts for 7.3% left and right of total make; well below the shared ratio of reserves, through exploitation for many years, many mine medium-thickness seams are closely exhausted; the regular modelling of the exploitation ground of girdle carries out, and has obtained abundant attention.See with regard to current resource situation, development girdle mechanical mining is for developing coal resources, extend the pit mining time limit and realize high-efficiency mining all tool be of great significance.
At present, the exploitation of China's girdle has realized mechanization, and it is very few that the trackless auxiliary conveying equipments still matching is with it lacked, and even do not have.The flame proof rubber tyre vehicle of present stage is mainly adapted to the application in thick coal-layer mining, wherein between part rubber-tired cart car body and drive axle, adopts and is rigidly connected, although vehicle body is lower, there is no shock-absorbing function, has affected car load personnel's in transportation traveling comfort; Between another part rubber-tired cart car body and drive axle, adopt steel spring to be connected, although there is shock-absorbing function, but cause bodywork height higher, affect the loading height of passing through performance and container of car load, restrict it in thin and use ultra-thin coal seam, therefore, be necessary that development is applicable to the explosion-proof rubber tire chassis using under thin and ultra-thin coal seam condition.
Summary of the invention
The utility model can not adapt in order to solve existing flame proof rubber tyre vehicle the problem using under thin and ultra-thin coal seam condition, and a kind of Liftable type explosion-proof rubber tire chassis is provided.
The utility model adopts following technical scheme to realize:
Liftable type explosion-proof rubber tire chassis, is characterized in that comprising forebay, afer bay, rocker and fluid control part,
In the middle of described forebay, be symmetrically set with cylinder installation seat I and cylinder installation seat II; Forebay rear portion is provided with rocker mount pad and is connected with rocker;
The upper front end of described rocker is drive axle pressing plate, and bottom is drive axle supporting plate; Between drive axle pressing plate and drive axle supporting plate, be provided with limiting stopper; Drive axle pressing plate top is provided with hanging oil cylinder mount pad I and hanging oil cylinder mount pad II;
Described afer bay is provided with cylinder installation seat III and rear guard, and rear guard is provided with cylinder installation seat IV;
Described fluid control part comprises left front hanging oil cylinder, right front hanging oil cylinder, left front suspension energy storage, right front suspension energy storage, forward mounting control cock group, left one-way damper valve, right one-way damper valve, left back hanging oil cylinder, left back suspension energy storage, right back hanging oil cylinder, right back suspension energy storage, rear-mounted control cock group, multiple directional control valve, main energy storage, Hydraulic Pump, by pass valve and hydraulic reservoir
Rodless cavity one end of described left front hanging oil cylinder, right front hanging oil cylinder is connected with forebay by cylinder installation seat I, cylinder installation seat II respectively, and rod chamber one end is connected with rocker by hanging oil cylinder mount pad I, hanging oil cylinder mount pad II.
Rodless cavity one end of described left back hanging oil cylinder, right back hanging oil cylinder is connected with afer bay by cylinder installation seat III, cylinder installation seat V, rod chamber one end is connected with rear guard by cylinder installation seat IV, cylinder installation seat VI, and rod chamber one end is provided with damping hole;
Described forward mounting control cock group is made up of four shutoff valves, four shutoff valves are in parallel after connecting between two, the oil inlet of shunt circuit connects main energy storage, main energy storage is by shutoff valve connecting fluid press pump, the return opening of shunt circuit connects hydraulic reservoir, connecting line between two shutoff valves of one tunnel series connection connects left front suspension energy storage, left front suspension energy storage connects the oil inlet of left one-way damper valve, the oil outlet of left one-way damper valve connects the rodless cavity of left front hanging oil cylinder, the rod chamber of left front hanging oil cylinder communicates with atmosphere, connecting line between two shutoff valves of another road series connection connects right front suspension energy storage too, right front suspension energy storage connects right front hanging oil cylinder by right one-way damper valve, the rod chamber of right front hanging oil cylinder communicates with atmosphere,
Described rear-mounted control cock group comprises 2 check valves, 2 hydraulic control one-way valves, 2 pilot operated directional control valves, the oil inlet of hydraulic control one-way valve I and hydraulic control one-way valve II and oil inlet, controls mouthful and to communicate respectively with controlling between mouth; Pilot operated directional control valve I is in parallel with check valve I, and rear one end in parallel communicates with the oil outlet of hydraulic control one-way valve I, and the other end is communicated with the rodless cavity of left back suspension energy storage and left back hanging oil cylinder by T-pipe joint; Pilot operated directional control valve II is in parallel with check valve II, after in parallel, one end communicates with the oil outlet of hydraulic control one-way valve II, the other end is communicated with the rodless cavity of right back suspension energy storage and right back hanging oil cylinder by T-pipe joint, the control mouth of pilot operated directional control valve I communicates with the damping hole of left back hanging oil cylinder, the control mouth of pilot operated directional control valve II communicates with the damping hole of right back hanging oil cylinder
Described multiple directional control valve is that Median Function is three six-way transfer valves of H type, the oil inlet of multiple directional control valve is connected by hydraulic tubing with the oil outlet of Hydraulic Pump, return opening is connected by hydraulic tubing with hydraulic reservoir, one of them is carried out mouth and communicates with the hydraulic control one-way valve I in rear-mounted control cock group, the oil inlet of hydraulic control one-way valve II, and another is carried out mouth and communicates with the hydraulic control one-way valve I in rear-mounted control cock group, the control mouth of hydraulic control one-way valve II.
Described left one-way damper valve, right one-way damper valve are external Manual adjustable dash pot valve.
Described left front suspension energy storage, right front suspension energy storage, main energy storage, left back suspension energy storage, right back suspension energy storage are bladder type hydropneumatic accumulator.
The relative prior art of the utility model has following beneficial effect: the utility model not only has bumper and absorbing shock function, also there is lift adjustment function, solved common flame proof rubber tyre vehicle and be subject to the factor such as bodywork height, container loading height and restricted applying in girdle simultaneously.In the utility model, between forward mounting energy storage and forward mounting oil cylinder, be provided with external one-way throttle valve, between forward mounting energy storage and main energy storage, be provided with forward mounting control cock group, between rear-mounted energy storage and rear-mounted oil cylinder, be provided with rear-mounted control cock group, improve operability and the service life of front and rear suspension system, be adapted at the use in harsh environment under coal mine.The utility model is suitable for downhole anti-explosion rubber tire fortune people's car and lorry, and project organization is reasonable, cushioning ability is strong, is particluarly suitable for the use in girdle, also can be used for other special vehicle.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is rocker front view,
Fig. 3 is rocker birds-eye view,
Fig. 4 is schematic diagram of the present utility model,
In figure: 1-forebay, 2-cylinder installation seat I, the left front hanging oil cylinder of 3-, 4-cylinder installation seat II, 5-rocker, 6-afer bay, 7-cylinder installation seat III, the left back hanging oil cylinder of 8-, 9-rear guard, 10-cylinder installation seat IV, the left one-way damper valve of 11-, the left front suspension energy storage of 12-, 13-forward mounting control cock group, the main energy storage of 14-, 15-multiple directional control valve, 16-rear-mounted control cock group, the right back suspension energy storage of 17-, 18-Hydraulic Pump, 19-by pass valve, 20-hydraulic reservoir, 21-pilot operated directional control valve I, 22-pilot operated directional control valve II, 23-check valve I, 24-check valve II, 25-hydraulic control one-way valve I, 26-hydraulic control one-way valve II, the left back suspension energy storage of 27-, the right back hanging oil cylinder of 28-, the right front hanging oil cylinder of 29-, the right one-way damper valve of 30-, the right front suspension energy storage of 31-, 32-drive axle pressing plate, 33-drive axle supporting plate, 34-limiting stopper, 35-hanging oil cylinder mount pad I, 36-hanging oil cylinder mount pad II, 37-intermediate rod mount pad, 38-intermediate rod, 39-connection seat, 40-cylinder installation seat V, 41-cylinder installation seat VI.
Detailed description of the invention
Liftable type explosion-proof rubber tire chassis, is characterized in that comprising forebay 1, afer bay 6, rocker 5 and fluid control part,
In the middle of described forebay 1, be symmetrically set with cylinder installation seat I 2 and cylinder installation seat II 4; Forebay 1 rear portion is provided with rocker mount pad and is connected with rocker;
The upper front end of described rocker 5 is drive axle pressing plate 32, and bottom is drive axle supporting plate 33; Between drive axle pressing plate 32 and drive axle supporting plate 33, be provided with limiting stopper 34; Drive axle pressing plate 32 tops are provided with hanging oil cylinder mount pad I 35 and hanging oil cylinder mount pad II 36;
Described afer bay 6 is provided with cylinder installation seat III 7 and rear guard 9, and rear guard 9 is provided with cylinder installation seat IV 10;
Described fluid control part comprises left front hanging oil cylinder 3, right front hanging oil cylinder 29, left front suspension energy storage 12, right front suspension energy storage 31, forward mounting control cock group 13, left one-way damper valve 11, right one-way damper valve 30, left back hanging oil cylinder 8, left back suspension energy storage 27, right back hanging oil cylinder 28, right back suspension energy storage 17, rear-mounted control cock group 16, multiple directional control valve 15, main energy storage 14, Hydraulic Pump 18, by pass valve 19 and hydraulic reservoir 20
Rodless cavity one end of described left front hanging oil cylinder 3, right front hanging oil cylinder 29 is connected with forebay 1 by cylinder installation seat I 2, cylinder installation seat II 4 respectively, and rod chamber one end is connected with rocker 5 by hanging oil cylinder mount pad I 35, hanging oil cylinder mount pad II 36.
Rodless cavity one end of described left back hanging oil cylinder 8, right back hanging oil cylinder 28 is connected with afer bay 6 by cylinder installation seat III 7, cylinder installation seat V 40, rod chamber one end is connected with rear guard by cylinder installation seat IV 10, cylinder installation seat VI 41, and rod chamber one end is provided with damping hole;
Described forward mounting control cock group 13 is made up of four shutoff valves, four shutoff valves are in parallel after connecting between two, the oil inlet of shunt circuit connects main energy storage 14, main energy storage 14 is by shutoff valve connecting fluid press pump 18, the return opening of shunt circuit connects hydraulic reservoir 20, connecting line between two shutoff valves of one tunnel series connection connects left front suspension energy storage 12, left front suspension energy storage 12 connects the oil inlet of left one-way damper valve 11, the oil outlet of left one-way damper valve 11 connects the rodless cavity of left front hanging oil cylinder 3, the rod chamber of left front hanging oil cylinder 3 communicates with atmosphere, connecting line between two shutoff valves of another road series connection connects right front suspension energy storage 31 too, right front suspension energy storage 31 connects right front hanging oil cylinder 29 by right one-way damper valve 30, the rod chamber of right front hanging oil cylinder 29 communicates with atmosphere,
Described rear-mounted control cock group 16 comprises 2 check valves, 2 hydraulic control one-way valves, 2 pilot operated directional control valves, the oil inlet of hydraulic control one-way valve I 25 and hydraulic control one-way valve II 26 and oil inlet, controls mouthful and to communicate respectively with controlling between mouth; Pilot operated directional control valve I 21 is in parallel with check valve I 23, and rear one end in parallel communicates with the oil outlet of hydraulic control one-way valve I 25, and the other end is communicated with the rodless cavity of left back suspension energy storage 27 and left back hanging oil cylinder 8 by T-pipe joint; Pilot operated directional control valve II 22 is in parallel with check valve II 24, after in parallel, one end communicates with the oil outlet of hydraulic control one-way valve II 26, the other end is communicated with the rodless cavity of right back suspension energy storage 17 and right back hanging oil cylinder 28 by T-pipe joint, the control mouth of pilot operated directional control valve I 21 communicates with the damping hole of left back hanging oil cylinder 8, the control mouth of pilot operated directional control valve II 22 communicates with the damping hole of right back hanging oil cylinder 28
Described multiple directional control valve 15 is that Median Function is three six-way transfer valves of H type, the oil inlet of multiple directional control valve 15 is connected by hydraulic tubing with the oil outlet of Hydraulic Pump 18, return opening is connected by hydraulic tubing with hydraulic reservoir 20, one of them is carried out mouth and communicates with the hydraulic control one-way valve I 25 in rear-mounted control cock group 16, the oil inlet of hydraulic control one-way valve II 26, and another is carried out mouth and communicates with the hydraulic control one-way valve I 25 in rear-mounted control cock group 16, the control mouth of hydraulic control one-way valve II 26.
Described left one-way damper valve 11, right one-way damper valve 30 are external Manual adjustable dash pot valve.
Described left front suspension energy storage 12, right front suspension energy storage 31, main energy storage 14, left back suspension energy storage 27, right back suspension energy storage 17 are bladder type hydropneumatic accumulator.
The utlity model has two functions: the one, bumper and absorbing shock function; The 2nd, lift adjustment function.
1, the realization of bumper and absorbing shock function:
As shown in Figure 2, left one-way damper valve 11, right one-way damper valve 30, left front suspension energy storage 12, right front suspension energy storage 31, left front hanging oil cylinder 3, right front hanging oil cylinder 29 have formed front-suspension shock absorption system.Left front suspension energy storage 12 is connected by hydraulic tubing with the A mouth of left one-way damper valve 11, and the B mouth of left one-way damper valve 11 is connected by hydraulic tubing with the rodless cavity of left front hanging oil cylinder 3, and the rod chamber of left front hanging oil cylinder 3 communicates with atmosphere.In the time that vehicle passes through protruding road surface, the piston rod of left front hanging oil cylinder 3 is regained rapidly, and the hydraulic oil of rodless cavity flows back to left front suspension energy storage 12 by the check valve in left one-way damper valve 11, has kept the level of car body left and right, plays buffer action; When vehicle is by behind protruding road surface, the rodless cavity that the hydraulic oil of left front suspension energy storage 12 slowly flows into left front hanging oil cylinder 3 by the dash pot valve in left one-way damper valve 11 extends piston rod, has played cushioning effect; The right one-way damper valve 30 in another loop, right front suspension energy storage 31, right front hanging oil cylinder 29 are also like this.
Left back hanging oil cylinder 8, right back hanging oil cylinder 28, left back suspension energy storage 27, right back suspension energy storage 17 have formed rear-mounted shock mitigation system, left back suspension energy storage 27 is connected by hydraulic tubing respectively with right back hanging oil cylinder 28 with the rodless cavity of left back hanging oil cylinder 8, right back suspension energy storage 17, and each system plays buffer action by the extruding of hanging gas in energy storage.
2, lift adjustment function
In the time that car load height need to reduce, operation forward mounting control cock group 13, hydraulic oil in left front suspension energy storage 12 and left front hanging oil cylinder 3 and right front suspension energy storage 31 and right front hanging oil cylinder 29 flows back to hydraulic reservoir 20, the piston rod of left front hanging oil cylinder 3 and right front hanging oil cylinder 29 shortens, and forebay 1 is reduced; C and C ' hydraulic fluid port that operation multiple directional control valve 15 makes high pressure oil pass through rear-mounted control cock group 16 enter left back hanging oil cylinder 8 and right back hanging oil cylinder 28, the piston rod of left back hanging oil cylinder 8 and right back hanging oil cylinder 28 is shortened, afer bay 6 is reduced, reach the object that car load height reduces.
In the time that car load height need to raise, operation forward mounting control cock group 13, make the high pressure oil of main energy storage 14 enter the rodless cavity of left front suspension energy storage 12 and left front hanging oil cylinder 3 and right front suspension energy storage 31 and right front hanging oil cylinder 29, the piston rod of left front hanging oil cylinder 3 and right front hanging oil cylinder 29 is extended, forebay 1 is raise; A and A ' hydraulic fluid port that operation multiple directional control valve 15 makes high pressure oil pass through rear-mounted control cock group 16 enter respectively the rodless cavity of left back suspension energy storage 27 and left back hanging oil cylinder 8 and right back suspension energy storage 17 and right back hanging oil cylinder 28, the piston rod of left back hanging oil cylinder 8 and right back hanging oil cylinder 28 is extended, afer bay 6 is raise, reach the object that car load height raises.
Claims (3)
1. a Liftable type explosion-proof rubber tire chassis, is characterized in that comprising forebay (1), afer bay (6), rocker (5) and fluid control part,
In the middle of described forebay (1), be symmetrically set with cylinder installation seat I (2) and cylinder installation seat II (4); Forebay (1) rear portion is provided with rocker mount pad and is connected with rocker;
The upper front end of described rocker (5) is drive axle pressing plate (32), and bottom is drive axle supporting plate (33); Between drive axle pressing plate (32) and drive axle supporting plate (33), be provided with limiting stopper (34); Drive axle pressing plate (32) top is provided with hanging oil cylinder mount pad I (35) and hanging oil cylinder mount pad II (36);
Described afer bay (6) is provided with cylinder installation seat III (7) and rear guard (9), and rear guard (9) is provided with cylinder installation seat IV (10);
Described fluid control part comprises left front hanging oil cylinder (3), right front hanging oil cylinder (29), left front suspension energy storage (12), right front suspension energy storage (31), forward mounting control cock group (13), left one-way damper valve (11), right one-way damper valve (30), left back hanging oil cylinder (8), left back suspension energy storage (27), right back hanging oil cylinder (28), right back suspension energy storage (17), rear-mounted control cock group (16), multiple directional control valve (15), main energy storage (14), Hydraulic Pump (18), by pass valve (19) and hydraulic reservoir (20),
Rodless cavity one end of described left front hanging oil cylinder (3), right front hanging oil cylinder (29) is connected with forebay (1) by cylinder installation seat I (2), cylinder installation seat II (4) respectively, rod chamber one end is connected with rocker (5) by hanging oil cylinder mount pad I (35), hanging oil cylinder mount pad II (36)
Rodless cavity one end of described left back hanging oil cylinder (8), right back hanging oil cylinder (28) is connected with afer bay (6) by cylinder installation seat III (7), cylinder installation seat V (40), rod chamber one end is connected with rear guard by cylinder installation seat IV (10), cylinder installation seat VI (41), and rod chamber one end is provided with damping hole;
Described forward mounting control cock group (13) is made up of four shutoff valves, four shutoff valves are in parallel after connecting between two, the oil inlet of shunt circuit connects main energy storage (14), main energy storage (14) is by shutoff valve connecting fluid press pump (18), the return opening of shunt circuit connects hydraulic reservoir (20), connecting line between two shutoff valves of one tunnel series connection connects left front suspension energy storage (12), left front suspension energy storage (12) connects the oil inlet of left one-way damper valve (11), the oil outlet of left one-way damper valve (11) connects the rodless cavity of left front hanging oil cylinder (3), the rod chamber of left front hanging oil cylinder (3) communicates with atmosphere, connecting line between two shutoff valves of another road series connection connects right front suspension energy storage (31) too, right front suspension energy storage (31) connects right front hanging oil cylinder (29) by right one-way damper valve (30), the rod chamber of right front hanging oil cylinder (29) communicates with atmosphere,
Described rear-mounted control cock group (16) comprises 2 check valves, 2 hydraulic control one-way valves, 2 pilot operated directional control valves, the oil inlet of hydraulic control one-way valve I (25) and hydraulic control one-way valve II (26) and oil inlet, controls mouthful and to communicate respectively with controlling between mouth; Pilot operated directional control valve I (21) is in parallel with check valve I (23), and rear one end in parallel communicates with the oil outlet of hydraulic control one-way valve I (25), and the other end is communicated with the rodless cavity of left back suspension energy storage (27) and left back hanging oil cylinder (8) by T-pipe joint; Pilot operated directional control valve II (22) is in parallel with check valve II (24), after in parallel, one end communicates with the oil outlet of hydraulic control one-way valve II (26), the other end is communicated with the rodless cavity of right back suspension energy storage (17) and right back hanging oil cylinder (28) by T-pipe joint, the control mouth of pilot operated directional control valve I (21) communicates with the damping hole of left back hanging oil cylinder (8), the control mouth of pilot operated directional control valve II (22) communicates with the damping hole of right back hanging oil cylinder (28)
Described multiple directional control valve (15) is that Median Function is three six-way transfer valves of H type, the oil inlet of multiple directional control valve (15) is connected by hydraulic tubing with the oil outlet of Hydraulic Pump (18), return opening is connected by hydraulic tubing with hydraulic reservoir (20), one of them carries out a mouthful hydraulic control one-way valve I (25) interior with rear-mounted control cock group (16), the oil inlet of hydraulic control one-way valve II (26) communicates, and another is carried out mouth and communicates with the hydraulic control one-way valve I (25) in rear-mounted control cock group (16), the control mouth of hydraulic control one-way valve II (26).
2. Liftable type explosion-proof rubber tire chassis according to claim 1, is characterized in that described left one-way damper valve (11), right one-way damper valve (30) are external Manual adjustable dash pot valve.
3. Liftable type explosion-proof rubber tire chassis according to claim 1 and 2, is characterized in that described left front suspension energy storage (12), right front suspension energy storage (31), main energy storage (14), left back suspension energy storage (27), right back suspension energy storage (17) are bladder type hydropneumatic accumulator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210427212.9A CN102963233B (en) | 2012-10-31 | 2012-10-31 | Liftable type anti-explosion rubber-tyred vehicle chassis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210427212.9A CN102963233B (en) | 2012-10-31 | 2012-10-31 | Liftable type anti-explosion rubber-tyred vehicle chassis |
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| CN102963233A CN102963233A (en) | 2013-03-13 |
| CN102963233B true CN102963233B (en) | 2014-12-10 |
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| CN201210427212.9A Active CN102963233B (en) | 2012-10-31 | 2012-10-31 | Liftable type anti-explosion rubber-tyred vehicle chassis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038207B (en) * | 2019-12-16 | 2021-06-22 | 中联重科股份有限公司 | Hydro-pneumatic suspension module, hydro-pneumatic suspension system and vehicle |
| CN113427958A (en) * | 2021-06-22 | 2021-09-24 | 南京宝地梅山产城发展有限公司 | Multi-functional transport vechicle damping device in mine |
| CN113954597B (en) * | 2021-09-27 | 2024-05-31 | 中国煤炭科工集团太原研究院有限公司 | Self-adaptive multi-mode rubber wheel transportation trailer control system for coal mine vehicle |
| CN113815371B (en) * | 2021-09-27 | 2023-06-16 | 中国煤炭科工集团太原研究院有限公司 | Self-adaptive multi-mode rubber wheel transportation trailer device for coal mine vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5802980A (en) * | 1997-04-07 | 1998-09-08 | Dfm Enterprises, Inc. | Vehicle drive system for road and railroad track |
| CN201646301U (en) * | 2009-06-08 | 2010-11-24 | 昆山晋桦豹胶轮车制造有限公司 | Front axle suspension device for trackless glue-wheel vehicle of mining explosion-proof diesel engine |
| CN102673394A (en) * | 2012-05-31 | 2012-09-19 | 山西华煤智科机电设备有限公司 | Mining anti-explosion trackless rubber tire vehicle chassis |
| CN203078601U (en) * | 2012-10-31 | 2013-07-24 | 中国煤炭科工集团太原研究院 | Liftable type anti-explosion rubber-tyred vehicle chassis |
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2012
- 2012-10-31 CN CN201210427212.9A patent/CN102963233B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5802980A (en) * | 1997-04-07 | 1998-09-08 | Dfm Enterprises, Inc. | Vehicle drive system for road and railroad track |
| CN201646301U (en) * | 2009-06-08 | 2010-11-24 | 昆山晋桦豹胶轮车制造有限公司 | Front axle suspension device for trackless glue-wheel vehicle of mining explosion-proof diesel engine |
| CN102673394A (en) * | 2012-05-31 | 2012-09-19 | 山西华煤智科机电设备有限公司 | Mining anti-explosion trackless rubber tire vehicle chassis |
| CN203078601U (en) * | 2012-10-31 | 2013-07-24 | 中国煤炭科工集团太原研究院 | Liftable type anti-explosion rubber-tyred vehicle chassis |
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