CN104443084A - Crawler-type double-car-body state adjusting method and hydraulic system adopted by method - Google Patents
Crawler-type double-car-body state adjusting method and hydraulic system adopted by method Download PDFInfo
- Publication number
- CN104443084A CN104443084A CN201410209361.7A CN201410209361A CN104443084A CN 104443084 A CN104443084 A CN 104443084A CN 201410209361 A CN201410209361 A CN 201410209361A CN 104443084 A CN104443084 A CN 104443084A
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- interface
- valve group
- valve
- hydraulic
- vehicle
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
Abstract
The invention discloses a crawler-type double-car-body state adjusting method and a hydraulic system adopted by the method. The hydraulic system comprises a front car body and a rear car body which are connected through a hinge joint device. Hydraulic oil cylinders are arranged between the hinge joint device and the two car bodies, and the two hydraulic oil cylinders are connected with the hydraulic system. The hydraulic system controls the extensible lengths of the two hydraulic oil cylinders to enable the included angle formed by vertical faces of the two car bodies to be optionally adjusted at the connection position between an arch and a recess so as to adapt to the cross-country performance of a crawler-type double-car-body vehicle and the safety and stability during float-crossing. The hydraulic system for state adjustment of the front car body and the rear car body is simple in structure, efficiency and safe, can absorb partial impact force and vibration produced by the vehicle in running, enables the cross-country performance of the vehicle to be good and can improve the safety and stability during float-crossing. The whole layout of the hydraulic system is easily achieved. The hydraulic system is simple in operation and reliable in functions. A load-sensitive pump is introduced into the system, outputting is adjusted according to a feedback result, and an energy-saving role played. The running comfort, the cross-country passing ability and in-water float-crossing safety of the whole vehicle can be improved.
Description
Technical field
the present invention relates to a kind of tracked double-body vehicle state adjustment method and hydraulic efficiency pressure system used, belong to special vehicle control technology field.
Background technology
tracked double-body vehicle structure has lower grounding pressure, cross-country strong by performance, can pass through the severe landform such as marsh, snowfield, mountain forest, lake easily; Because front and back car body is linked by multivariant splicer, when vehicle road travels, its upper and lower Relative Vibration of former and later two car bodies, impact greatly, have a strong impact on the traveling comfort of driver and crew; When vehicle land locomotion, need the angle adjusting forward and backward car body, to ensure the ability by vertical obstacle and " V " type trench; When vehicle on the water floating cross time, the angle of forward and backward car body can by buoyancy variable effect upwards, reduce floating safety of crossing and stability.
Summary of the invention
the object of the invention is to, a kind of tracked double-body vehicle state adjustment method and hydraulic efficiency pressure system used are provided, with improve the all-terrain vehicle of two body construction cross-country traveling ability and waterborne floating cross safety, stability and the traveling comfort that travels, thus overcome the deficiencies in the prior art.
technical scheme of the present invention is achieved in that
a kind of tracked double-body vehicle state adjustment method of the present invention is, the method comprises the front vehicle body and aftercarriage that connect through splicer; Be equipped with hydraulic ram between splicer and two car bodies, two hydraulic rams are connected with hydraulic efficiency pressure system; By the collapsing length of HYDRAULIC CONTROL SYSTEM two hydraulic rams, the vertical plane angle of two car bodies is regulated arbitrarily between arch connects to spill, to adapt to the off-road capability of tracked double-body vehicle vehicle and safety during floating crossing and stability.
in preceding method, when described tracked double-body vehicle vehicle is positioned at top, slope, the vertical plane angle of two car bodies is arch.
in preceding method, described tracked double-body vehicle vehicle be positioned at the bottom of slope or trench time, the vertical plane angle of two car bodies is spill.
in preceding method, described tracked double-body vehicle vehicle be in floating cross or level road time, the vertical plane angle of two car bodies is close to linear state.
it is that this system comprises front hydraulic ram and rear hydraulic ram that the present invention is used for a kind of hydraulic efficiency pressure system of said method, is connected respectively after the large small oil cavity parallel connection of forward and backward hydraulic ram with the A interface of valve group and B interface; The P interface of valve group is connected with the high pressure oil interface of hydraulic pump module through three-position four-way valve; The T interface of valve group is connected with fuel tank with filter through three-position four-way valve, by pass valve; The X interface of valve group is connected with the oil return interface of hydraulic pump module.
in aforementioned hydraulic system, described filter two ends are parallel with bypass check valve.
in aforementioned hydraulic system, described three-position four-way valve two ends are respectively equipped with A magnet coil and B magnet coil.
in aforementioned hydraulic system, the P interface of described valve group is connected with the A interface of valve group and the B interface of valve group through check valve respectively with the T interface of valve group; Valve group is provided with the C interface and three pressure tap that are connected with energy storage; Be provided with two electromagnetic valves in valve group, one is connected in parallel between the A interface of valve group and the B interface of valve group, and another is connected in parallel between the A interface of valve group and the C interface of valve group; Be parallel with shuttle valve between the P interface of valve group and the T interface of valve group, the intermediary interface of shuttle valve is connected with the X interface of valve group.
in aforementioned hydraulic system, described two check valve two ends are parallel with bypass by pass valve respectively.
in aforementioned hydraulic system, described three pressure tap, wherein two are connected with the A interface of valve group and the B interface of valve group respectively, and another is connected with the C interface of valve group.
owing to have employed technique scheme, the present invention compared with prior art, the present invention has simple, efficient, the safe advantage of structure, the present invention can absorb the part of impact force and vibration that produce when vehicle travels, make vehicle off-road capability good, the hydraulic efficiency pressure system of safety when can improve again floating crossing and the front and back car body state adjustment of stability.The present invention is easy to integral layout; Simple to operate, reliable in function; System introduces load sensitive pump, exports, play energy-conserving action according to feedback regulation; Can improve in the driving comfort of car load, cross-country crossing ability and water to float and cross safety.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention (when being positioned at top, slope);
fig. 2 be structural representation of the present invention (be in floating cross or level road time);
fig. 3 is structural representation of the present invention when trench (is positioned at the bottom of slope or);
fig. 4 is hydraulic system principle figure of the present invention.
being labeled as in accompanying drawing: hydraulic ram before 1-, hydraulic ram after 2-, 3-valve group, 4-three-position four-way valve, 5-hydraulic pump module, 6-by pass valve, 7-filter, 8-fuel tank, 9-bypass check valve, 10-A magnet coil, 11-B magnet coil, 12-check valve, 13-energy storage, 14-pressure tap, 15-electromagnetic valve, 16-shuttle valve, 17-bypass by pass valve, 18-front vehicle body, 19-aftercarriage, 20-splicer.
Detailed description of the invention
below in conjunction with embodiment, the present invention is described in further detail, but not as any limitation of the invention.
a kind of tracked double-body vehicle state adjustment method of the present invention is, as Figure 1-3, the method comprises the front vehicle body 18 and aftercarriage 19 that connect through splicer; Be equipped with hydraulic ram between splicer 20 and two car bodies, two hydraulic rams are connected with hydraulic efficiency pressure system; By the collapsing length of HYDRAULIC CONTROL SYSTEM two hydraulic rams, the vertical plane angle of two car bodies is regulated arbitrarily between arch connects to spill, to adapt to the off-road capability of tracked double-body vehicle vehicle and safety during floating crossing and stability.When tracked double-body vehicle vehicle is positioned at top, slope, the vertical plane angle of two car bodies is arch (see figure 1).Tracked double-body vehicle vehicle be positioned at the bottom of slope or trench time, the vertical plane angle of two car bodies is spill (see figure 3).Tracked double-body vehicle vehicle be in floating cross or level road time, the vertical plane angle of two car bodies is close to linear state (see figure 2).
as shown in Figure 4, this hydraulic efficiency pressure system comprises front hydraulic ram 1 and rear hydraulic ram 2 to the structural representation of a kind of hydraulic efficiency pressure system for said method of the present invention, is connected respectively after the large small oil cavity parallel connection of forward and backward hydraulic ram with the A interface of valve group 3 and B interface; The P interface of valve group 3 is connected with the high pressure oil interface of hydraulic pump module 5 through three-position four-way valve 4; The T interface of valve group 3 is connected with fuel tank 8 with filter 7 through three-position four-way valve 4, by pass valve 6; The X interface of valve group 3 is connected with the oil return interface of hydraulic pump module 5.Filter 7 two ends are parallel with bypass check valve 9.Three-position four-way valve 4 two ends are respectively equipped with A magnet coil 10 and B magnet coil 11.The P interface of valve group 3 is connected with the A interface of valve group 3 and the B interface of valve group 3 through check valve 12 respectively with the T interface of valve group 3; Valve group 3 is provided with the C interface and three pressure tap 14 that are connected with energy storage 13; Being provided with two electromagnetic valves 15, in valve group 3 is connected in parallel between the A interface of valve group 3 and the B interface of valve group 3, and another is connected in parallel between the A interface of valve group 3 and the C interface of valve group 3; Be parallel with shuttle valve 16 between the P interface of valve group 3 and the T interface of valve group 3, the intermediary interface of shuttle valve 16 is connected with the X interface of valve group 3.Two check valve 12 two ends are parallel with bypass by pass valve 17 respectively.Three pressure tap 14, wherein two are connected with the A interface of valve group 3 and the B interface of valve group 3 respectively, and another is connected with the C interface of valve group 3.
below working process of the present invention and principle are described in detail as follows:
when vehicle is at rugged road traveling, its upper and lower Relative Vibration of former and later two car bodies, impact greatly, have a strong impact on the traveling comfort of driver and crew; Now, all electromagnetic valves all must not electricity time, three-position four-way valve 4 is in meta, and the hydraulic oil that hydraulic pump module 5 pumps flows back to fuel tank 8 through by pass valve 6 through filter 7, as filter 7 block time, hydraulic oil can flow back to fuel tank 8 from bypass check valve 9.Now, front hydraulic ram 1 is all communicated with energy storage 13 with the large small oil cavity oil circuit of rear hydraulic ram 2, effectively can absorb the impact of former and later two car body Relative Vibrations generation caused on road surface of jolting, thus improve road traveling performance, strengthen the traveling comfort of driver and crew.
when vehicle carry out waterborne floating cross time, need to adjust vehicle attitude: electromagnetic valve 15 keeps electrically connecting, cut off being communicated with of energy storage 13 and working connection; Need front and back two car to be adjusted to spill angle " ∨ " (see figure 3) state according to vehicle, or front and back two car is adjusted to arch angle " ∧ " (see figure 1) state; Make simultaneously the A magnet coil 10 at three-position four-way valve 4 two ends or B magnet coil 11 electric (A magnet coil 10 and B magnet coil 11 can not simultaneously electric) connection, hydraulic oil will arrive front hydraulic ram 1 and rear hydraulic ram 2 by check valve 12, three-position four-way valve 4 and valve group 3, thus adjust vehicle-state; After being transferred to optimum regime, A magnet coil 10 and B magnet coil 11 be dead electricity all, keep electromagnetic valve 15 electric, can realize front and back car body and float in water and cross being rigidly connected of being, stability car load being floated cross and safety are improved.When land locomotion, vehicle also can be strengthened by the ability of vertical obstacle and the ability of crossing over V-arrangement trench by the angle adjusted between forward and backward car body.When A magnet coil 10 or B magnet coil 11 obtain electric, system pressure feeds back to hydraulic pump module 5 by the shuttle valve 16 in valve group 3, thus realizes the adjustment of Hydraulic Pump output.
Claims (10)
1. a tracked double-body vehicle state adjustment method, comprises the front vehicle body and aftercarriage that connect through splicer; It is characterized in that: be equipped with hydraulic ram between splicer and two car bodies, two hydraulic rams are connected with hydraulic efficiency pressure system; By the collapsing length of HYDRAULIC CONTROL SYSTEM two hydraulic rams, the vertical plane angle of two car bodies is regulated arbitrarily between arch connects to spill, to adapt to the off-road capability of tracked double-body vehicle vehicle and safety during floating crossing and stability.
2. method according to claim 1, is characterized in that: when described tracked double-body vehicle vehicle is positioned at top, slope, the vertical plane angle of two car bodies is arch.
3. method according to claim 1, is characterized in that: described tracked double-body vehicle vehicle be positioned at the bottom of slope or trench time, the vertical plane angle of two car bodies is spill.
4. method according to claim 1, is characterized in that: described tracked double-body vehicle vehicle be in floating cross or level road time, the vertical plane angle of two car bodies is close to linear state.
5. the hydraulic efficiency pressure system for method described in the arbitrary claim of claim 1-4, it is characterized in that: comprise front hydraulic ram (1) and rear hydraulic ram (2), be connected with the A interface of valve group (3) and B interface respectively after the large small oil cavity parallel connection of forward and backward hydraulic ram; The P interface of valve group (3) is connected through the high pressure oil interface of three-position four-way valve (4) with hydraulic pump module (5); The T interface of valve group (3) is connected with fuel tank (8) with filter (7) through three-position four-way valve (4), by pass valve (6); The X interface of valve group (3) is connected with the oil return interface of hydraulic pump module (5).
6. hydraulic efficiency pressure system according to claim 5, is characterized in that: described filter (7) two ends are parallel with bypass check valve (9).
7. hydraulic efficiency pressure system according to claim 5, is characterized in that: described three-position four-way valve (4) two ends are respectively equipped with A magnet coil (10) and B magnet coil (11).
8. hydraulic efficiency pressure system according to claim 5, is characterized in that: the P interface of described valve group (3) is connected with the A interface of valve group (3) and the B interface of valve group (3) through check valve (12) respectively with the T interface of valve group (3); Valve group (3) is provided with the C interface and three pressure tap (14) that are connected with energy storage (13); Be provided with two electromagnetic valves (15) in valve group (3), one is connected in parallel between the A interface of valve group (3) and the B interface of valve group (3), and another is connected in parallel between the A interface of valve group (3) and the C interface of valve group (3); Be parallel with shuttle valve (16) between the P interface of valve group (3) and the T interface of valve group (3), the intermediary interface of shuttle valve (16) is connected with the X interface of valve group (3).
9. hydraulic efficiency pressure system according to claim 8, is characterized in that: described two check valve (12) two ends are parallel with bypass by pass valve (17) respectively.
10. hydraulic efficiency pressure system according to claim 8, it is characterized in that: described three pressure tap (14), wherein two are connected with the A interface of valve group (3) and the B interface of valve group (3) respectively, and another is connected with the C interface of valve group (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209361.7A CN104443084B (en) | 2014-05-19 | 2014-05-19 | Tracked double-body vehicle state adjustment method and hydraulic system used |
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| CN201410209361.7A CN104443084B (en) | 2014-05-19 | 2014-05-19 | Tracked double-body vehicle state adjustment method and hydraulic system used |
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| CN104443084A true CN104443084A (en) | 2015-03-25 |
| CN104443084B CN104443084B (en) | 2017-03-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879349A (en) * | 2015-04-13 | 2015-09-02 | 徐州重型机械有限公司 | Hydraulic system for energy recovery and utilization and engineering machinery vehicle |
| CN106481606A (en) * | 2016-08-08 | 2017-03-08 | 徐工集团工程机械有限公司 | Drilling control system and rig |
| CN109095392A (en) * | 2018-10-16 | 2018-12-28 | 中国航发南方工业有限公司 | Hoistable platform for the assembly of whirlpool paddle type aero-engine |
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| GB2021058A (en) * | 1978-05-22 | 1979-11-28 | Haegglund & Soener Ab | Method and device for enabling articulated vehicles to turn with a small turning radius |
| EP0066677A3 (en) * | 1981-06-05 | 1983-06-01 | Erich Prinoth | Drive mechanism for a tracked vehicle and a tracked trailer |
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| CN102358360A (en) * | 2011-07-28 | 2012-02-22 | 贵州詹阳动力重工有限公司 | Crawler-type dual vehicle bodies |
| CN203005585U (en) * | 2012-12-30 | 2013-06-19 | 张凤嘉 | Snow mountain rescue car |
| CN203832603U (en) * | 2014-05-19 | 2014-09-17 | 贵州詹阳动力重工有限公司 | Hydraulic system used for adjusting crawler belt type double vehicle body state |
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2014
- 2014-05-19 CN CN201410209361.7A patent/CN104443084B/en active Active
Patent Citations (8)
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| GB2021058A (en) * | 1978-05-22 | 1979-11-28 | Haegglund & Soener Ab | Method and device for enabling articulated vehicles to turn with a small turning radius |
| EP0066677A3 (en) * | 1981-06-05 | 1983-06-01 | Erich Prinoth | Drive mechanism for a tracked vehicle and a tracked trailer |
| CN201606320U (en) * | 2009-12-24 | 2010-10-13 | 哈尔滨北方特种车辆制造有限公司 | Pitching and steering control device for two-section vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879349A (en) * | 2015-04-13 | 2015-09-02 | 徐州重型机械有限公司 | Hydraulic system for energy recovery and utilization and engineering machinery vehicle |
| CN104879349B (en) * | 2015-04-13 | 2017-03-29 | 徐州重型机械有限公司 | For energy regenerating and the hydraulic system for utilizing and engineering machinery vehicle |
| CN106481606A (en) * | 2016-08-08 | 2017-03-08 | 徐工集团工程机械有限公司 | Drilling control system and rig |
| CN109095392A (en) * | 2018-10-16 | 2018-12-28 | 中国航发南方工业有限公司 | Hoistable platform for the assembly of whirlpool paddle type aero-engine |
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| CN104443084B (en) | 2017-03-08 |
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