CN101177145A - Bidirectional steering vehicle turning hydraulic system - Google Patents
Bidirectional steering vehicle turning hydraulic system Download PDFInfo
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- CN101177145A CN101177145A CNA2007101911346A CN200710191134A CN101177145A CN 101177145 A CN101177145 A CN 101177145A CN A2007101911346 A CNA2007101911346 A CN A2007101911346A CN 200710191134 A CN200710191134 A CN 200710191134A CN 101177145 A CN101177145 A CN 101177145A
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Abstract
The invention relates to a dual-way vehicle steering hydraulic system of driving automobile, comprising a steering interlocked reversing valve, a first redirector and a second redirector positioned in two cabs; wherein, the P mouth of the steering interlocked reversing valve is connected with an oil outlet of the hydraulic pump; a first and a second dual-way cushioning oil-feeding combination valve and a first and a second reversing hydraulic cylinder. The invention has the advantages that two cylinders are provided; and in changing direction, one cylinder piston is protruded out, and the other cylinder piston is retracted, which respectively exerts a steering force on the two sides of the joint chair of the back frame, so that the steering is easy to conduct, and the turning radius is small. Due to the reversing valve, when a cab is operating to change direction, the operation of changing direction of the other cab is locked.
Description
Technical field
The present invention relates to bidirectional steering vehicle turning hydraulic system.
Background technology
China Patent No. is that 02285016.3 the disclosed down-hole of utility model patent specification sheets trackless assistant conveyance rubber-tired cart comprises driving engine, driving system, explosion protection system, hydraulic efficiency pressure system, pneumatic and electric system are installed, and is hinged between the forward and backward frame of this transportation rubber-tired cart.The disclosed loader of utility model patent specification sheets that China Patent No. is 200620083271.9, name is called " the wheeled underground loader of 4 wheel driven " comprises front vehicle body, aftercarriage, and front vehicle body is connected by oscillating axle with aftercarriage.Above-mentioned down-hole is an one-way traffic with car, and in less crossheading of drift section or the belt lane during operation, vehicle can't be reversed end for end, so be not suitable in the less occasion effect of drift section under coal mine.For solving the transportation of crossheading or belt lane personnel and material, developing at present the railless free-wheeled vehicle of bidirectional driving, this railless free-wheeled vehicle has forward and backward vehicle frame, hinged between the forward and backward vehicle frame, front vehicle frame is provided with main operator's compartment, back vehicle frame is provided with the copilot chamber, and major and minor operator's compartment can both be driven by forward.Owing to be bidirectional driving, steering swivel system need satisfy the requirement that interlocking can both be handled and can be reached to two operator'ies compartment, and the steering swivel system of this and one-way traffic vehicle is distinguishing.China's Granted publication number be the disclosed vehicle bidirectional driving of the utility model patent specification sheets hydraulic efficiency gear of 2664968Y by pressure-gradient control valve, distributing valve, two deflectors, turn to oil cylinder to form.Pressure-gradient control valve is connected with two deflectors by distributing valve, and two deflectors all can be handled the steering oil cylinder working, thereby realizes that former and later two directions or two diverse location maneuver vehicle turn to.Above-mentioned bidirectional driving hydraulic efficiency gear is not suitable for using on the pivotally attached vehicle between the vehicle frame of front and back.
Summary of the invention
The objective of the invention is to propose a kind ofly to be applicable to pivotally attached vehicle between the forward and backward vehicle frame central authorities, can accept to be separately positioned on the bidirectional steering vehicle turning hydraulic system that two operator'ies compartment on the forward and backward vehicle frame are handled and again can interlocking.
For achieving the above object, the present invention takes following technical scheme:
The present invention includes and turn to interlocking change-over valve and the deflector and No. two deflectors that are provided in two operator'ies compartment, turn to the P mouth of interlocking change-over valve and the oil outlet of Hydraulic Pump to be connected; Also be provided with No. one, No. two bidirectional buffering repairing combine valves and No. one, No. two hydraulic steering cylinders;
The above-mentioned A mouth of interlocking change-over valve that turns to is connected with the P mouth of a bidirectional buffering valve repairing combine valve; The P mouth of an above-mentioned deflector, T mouth, A mouth, B mouth connect with each corresponding hydraulic fluid port of bidirectional buffering repairing combine valve; The A mouth of an above-mentioned bidirectional buffering repairing combine valve is connected with the B mouth of the A mouth of a hydraulic steering cylinder, No. two hydraulic steering cylinders; The B mouth of a bidirectional buffering repairing combine valve is connected with the B mouth of the A mouth of No. two hydraulic steering cylinders, a hydraulic steering cylinder, and the T mouth of a bidirectional buffering repairing combine valve is connected with hydraulic reservoir;
The above-mentioned B mouth of interlocking change-over valve and the P mouth of No. two bidirectional buffering valve repairing combine valves of turning to is connected; The P mouth of above-mentioned No. two deflectors, T mouth, A mouth, B mouth connect with No. two each corresponding hydraulic fluid port of bidirectional buffering repairing combine valve; The A mouth of above-mentioned No. two bidirectional buffering repairing combine valves is connected with the B mouth of the A mouth of a hydraulic steering cylinder, No. two hydraulic steering cylinders; The B mouth of No. two bidirectional buffering repairing combine valves is connected with the B mouth of the A mouth of No. two hydraulic steering cylinders, a hydraulic steering cylinder, and the T mouth of No. two bidirectional buffering repairing combine valves is connected with hydraulic reservoir.
A described bidirectional buffering repairing combine valve comprises a check valve between the P mouth that is connected the A mouth that turns to change-over valve and a deflector and is connected the security of system valve of the A mouth of a check valve, the T mouth of security of system valve is connected with hydraulic reservoir, the check valve that also comprises the two relative settings of bidirectional buffering valve that are provided with relatively with two, the P mouth of one two-way cushion valve and the A mouth of a check valve are connected between the A mouth of the A mouth of a deflector and a bidirectional buffering repairing combine valve, the P mouth of another bidirectional buffering valve and the A mouth of another check valve are connected between the B mouth of the B mouth of a deflector and a bidirectional buffering repairing combine valve, and the T mouth of two bidirectional buffering valves all is connected with hydraulic reservoir with the P mouth of two check valves.
Described No. two bidirectional buffering repairing combine valves comprise a check valve between the P mouth that is connected the B mouth that turns to change-over valve and No. two deflectors and are connected the security of system valve of the A mouth of a check valve that the T mouth of security of system valve is connected with hydraulic reservoir; The check valve that also comprises the two relative settings of bidirectional buffering valve that are provided with relatively with two, the P mouth of one two-way cushion valve and the A mouth of a check valve are connected between the A mouth of the A mouth of No. two deflectors and No. two bidirectional buffering repairing combine valves, the P mouth of another bidirectional buffering valve and the A mouth of another check valve are connected between the B mouth of the B mouth of No. two deflectors and No. two bidirectional buffering repairing combine valves, and the T mouth of two bidirectional buffering valves all is connected with hydraulic reservoir with the P mouth of two check valves.
Described No. one, No. two deflectors are all-hydraulic steering gear.
The described interlocking change-over valve that turns to is two position and four-way reversing valves.
Two hydraulic steering cylinders are double-acting piston hydraulic actuating cylinders.
The present invention has following good effect:
1, the present invention is provided with two oil cylinders, and when turning to, an oil cylinder piston is protruding, and an oil cylinder piston inwardly shrinks, and the left and right sides of hinged seat to the back vehicle frame applies steering effort respectively, so the sensitivity of turning to, turn radius is little.Owing to have a change-over valve of turning to, when an operator's compartment turns in manipulation, the handling maneuver of operator's compartment is promptly locked in addition.
2, the present invention is provided with bidirectional buffering repairing combine valve, and bidirectional buffering repairing combine valve has three effects greatly: 1. the security of system valve is provided with the maximum pressure that can limit deflector.2. when a certain side of wheel ran into bigger resistance (as stone, pit etc.), the bidirectional buffering valve events shielded.3. when the pressure of oil cylinder one side was higher than the pressure of pump, a check valve prevented that high pressure oil from flowing backwards by deflector, in the time of can also preventing manual steering in the air admission oil pump.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the present invention is further detailed explanation, wherein
Fig. 1 is a constructional drawing of the present invention;
Fig. 2 is a hydraulic schematic diagram of the present invention.
The specific embodiment
Accompanying drawing is one embodiment of the present of invention, and what use present embodiment is the railless free-wheeled vehicle that is applicable to the down-hole.Respectively be provided with an operator's compartment on the forward and backward vehicle frame of this car, the operator's saddle forward arranges, forward and backward vehicle frame central authorities are hinged.Present embodiment comprises oil suction oil filter 1, Hydraulic Pump 2, turn to interlocking change-over valve 3 and be provided in the deflector 9 in two operator'ies compartment, No. two deflectors 6, a deflector 9 is provided with steering apparatus 10, No. two deflectors 6 are provided with steering apparatus 5, turn to the P mouth of interlocking change-over valve 3 to be connected with the fuel-displaced of Hydraulic Pump 2.In addition, also comprise bidirectional buffering repairing combine valve 8, No. two bidirectional buffering repairing combine valves 4 and hydraulic steering cylinder 12, No. two hydraulic steering cylinders 7.No. one bidirectional buffering valve repairing combine valve 8 is installed in the deflector 9, and No. two bidirectional buffering valve repairing combine valve 4 is installed in No. two deflectors 6.
A hydraulic steering cylinder 12 and No. two hydraulic steering cylinders 7 are installed on the frame, and the two-piston bar applies steering effort to the left and right sides of back vehicle frame hinged seat 13 respectively.
The above-mentioned P mouth of interlocking change-over valve 3 and the oil outlet of Hydraulic Pump 2 of turning to is connected, and the T mouth blocks up with plug screw.The above-mentioned A mouth of interlocking change-over valve 3 that turns to is connected with the P mouth of a bidirectional buffering valve repairing combine valve 8; The P mouth of an above-mentioned deflector 9, T mouth, A mouth, B mouth connect with bidirectional buffering repairing combine valve 8 each corresponding hydraulic fluid port; The A mouth of an above-mentioned bidirectional buffering repairing combine valve 8 is connected with the B mouth of the A mouth of a hydraulic steering cylinder 12, No. two hydraulic steering cylinders 7; The B mouth of a bidirectional buffering repairing combine valve 8 is connected with the B mouth of the A mouth of No. two hydraulic steering cylinders 7, a hydraulic steering cylinder 12, and the T mouth of a bidirectional buffering repairing combine valve 8 is connected with hydraulic reservoir 11;
The above-mentioned B mouth of interlocking change-over valve 3 and the P mouth of No. two bidirectional buffering valve repairing combine valves 4 of turning to is connected; The P mouth of above-mentioned No. two deflectors 6, T mouth, A mouth, B mouth connect with No. two bidirectional buffering repairing combine valve 4 each corresponding hydraulic fluid port; The A mouth of above-mentioned No. two bidirectional buffering repairing combine valves 4 is connected with the B mouth of the A mouth of a hydraulic steering cylinder 12, No. two hydraulic steering cylinders 7; The B mouth of No. two bidirectional buffering repairing combine valves 4 is connected with the B mouth of the A mouth of No. two hydraulic steering cylinders 7, a hydraulic steering cylinder 12, and the T mouth of No. two bidirectional buffering repairing combine valves 4 is connected with hydraulic reservoir 11.
A described bidirectional buffering repairing combine valve 8 comprises a check valve 8-1 between the P mouth that is connected the A mouth that turns to change-over valve 3 and a deflector 9 and is connected the security of system valve 8-2 of the A mouth of a check valve 8-1 that the T mouth of security of system valve 8-2 is connected with hydraulic reservoir 11.Also comprise two bidirectional buffering valve 8-3, check valve 8-5, the 8-6 of the relative setting of 8-4 that are provided with relatively with two.The A mouth of the P mouth of one two-way cushion valve 8-3 and a check valve 8-5 is connected between the A mouth of the A mouth of a deflector 9 and a bidirectional buffering repairing combine valve 8, the P mouth of another bidirectional buffering valve 8-4 and the A mouth of another check valve 8-6 are connected between the B mouth of the B mouth of a deflector 9 and a bidirectional buffering repairing combine valve 8, and the T mouth of two bidirectional buffering valve 8-3,8-4 all is connected with hydraulic reservoir 11 with the P mouth of two check valve 8-5,8-6.
Described No. two bidirectional buffering repairing combine valves 4 comprise a check valve 4-1 between the P mouth that is connected the B mouth that turns to change-over valve 3 and No. two deflectors 6 and are connected the security of system valve 4-2 of the A mouth of a check valve 4-1, the T mouth of security of system valve 4-2 is connected with hydraulic reservoir 11, also comprises two bidirectional buffering valve 4-3, check valve 4-5, the 4-6 of the relative setting with two of 4-4 that are provided with relatively.The A mouth of the P mouth of one two-way cushion valve 4-3 and a check valve 4-5 is connected between the A mouth of the A mouth of No. two deflectors 6 and No. two bidirectional buffering repairing combine valves 4, the P mouth of another bidirectional buffering valve 4-4 and the A mouth of another check valve 4-6 are connected between the B mouth of the B mouth of No. two deflectors 6 and No. two bidirectional buffering repairing combine valves 4, and the T mouth of two bidirectional buffering valve 4-3,4-4 all is connected with hydraulic reservoir 11 with the P mouth of two check valve 4-5,4-6.
An above-mentioned deflector 9, No. two deflectors 6 are all-hydraulic steering gear.The described interlocking change-over valve 3 that turns to is two position and four-way reversing valves.Hydraulic steering cylinder 12, No. two hydraulic steering cylinders 7 all are double-acting piston hydraulic actuating cylinders.
Described when turning to interlocking change-over valve 3 to be in initial position, Hydraulic Pump 2 is given deflector 9 fuel feeding, when No. one steering apparatus 10 does not rotate, a deflector 9 is in meta, the non-loaded off-load of Hydraulic Pump 2 fuel feeding, hydraulic steering cylinder 12, No. two hydraulic steering cylinders 7 do not have fuel feeding, are failure to actuate.
During steering apparatus 10 turning clockwises, the A mouth of A mouth to a hydraulic actuating cylinder 12 of the A mouth of the fuel feeding of Hydraulic Pump 2 through turning to interlocking change-over valve 3, the A mouth of a bidirectional buffering valve repairing combine valve 8, a deflector 9, the B mouth of No. two hydraulic actuating cylinders 7 drive hydraulic steering cylinder, realize that railless free-wheeled vehicle turns to.The oil return of the B mouth of a hydraulic ram 12, the A mouth of No. two hydraulic rams 7 is got back to hydraulic reservoir 11 through the B mouth of a bidirectional buffering valve repairing combine valve 8.
When No. one steering apparatus 10 turns left, Hydraulic Pump 2 gives the fuel feeding of a deflector 9 through turning to the A mouth of interlocking change-over valve 3, the A mouth of the B mouth of a bidirectional buffering valve repairing combine valve 8, B mouth to two hydraulic steering cylinder 7 of a deflector 9, the B mouth of a hydraulic steering cylinder 12 drive hydraulic steering cylinder, realize that the clear and bright car of taking turns of trackless turns to.The A mouth oil return of the B mouth of a hydraulic steering cylinder 7, No. two hydraulic steering cylinders 12 is got back to system's hydraulic reservoir 11 through the A mouth of a bidirectional buffering valve repairing combine valve 8.
When turning to interlocking change-over valve 3 to be in commutation position, Hydraulic Pump 2 is given No. two deflector 6 fuel feeding, and principle of work is the same.
Security of system valve action in the described bidirectional buffering valve repairing combine valve is the maximum pressure of restriction deflector.
Bidirectional buffering valve action in the described bidirectional buffering valve repairing combine valve be when wheel when a certain side runs into bigger resistance such as stone, pit etc.; the cushion valve action; the pressure of hydraulic steering cylinder raises; the cavity pressure of supposing hydraulic steering cylinder 12 corresponding A mouths raises; 8-3 moments of bidirectional buffering valve are opened oil spilling; by in the chamber of check valve 8-6 fluid infusion to a hydraulic steering cylinder 12 corresponding B mouths, shield thus simultaneously.
A check valve effect in the described bidirectional buffering valve repairing combine valve is when the pressure of oil cylinder one side is higher than the pressure of pump, prevents that high pressure oil from flowing backwards by deflector, in the time of can also preventing manual steering in the air admission oil pump.
Claims (6)
1. a bidirectional steering vehicle turning hydraulic system comprises turning to interlocking change-over valve (3) and being provided in two operator'ies compartment interior a deflector (9) and No. two deflectors (6), turns to the P mouth of interlocking change-over valve (3) and the oil outlet of Hydraulic Pump (2) to be connected; It is characterized in that: also be provided with No. one, No. two bidirectional buffering repairing combine valves (8,4) and No. one, No. two hydraulic steering cylinders (12,7);
The above-mentioned A mouth of interlocking change-over valve (3) that turns to is connected with the P mouth of a bidirectional buffering valve repairing combine valve (8); The P mouth of an above-mentioned deflector (9), T mouth, A mouth, each corresponding hydraulic fluid port of a B mouth and a bidirectional buffering repairing combine valve (8) connect; The A mouth of an above-mentioned bidirectional buffering repairing combine valve (8) is connected with the A mouth of a hydraulic steering cylinder (12), the B mouth of No. two hydraulic steering cylinders (7); The B mouth of a bidirectional buffering repairing combine valve (8) is connected with the A mouth of No. two hydraulic steering cylinders (7), the B mouth of a hydraulic steering cylinder (12), and the T mouth of a bidirectional buffering repairing combine valve (8) is connected with hydraulic reservoir (11);
The above-mentioned B mouth of interlocking change-over valve (3) and the P mouth of No. two bidirectional buffering valve repairing combine valves (4) of turning to is connected; The P mouth of above-mentioned No. two deflectors (6), T mouth, A mouth, each corresponding hydraulic fluid port of B mouth and No. two bidirectional buffering repairing combine valves (4) connect; The A mouth of above-mentioned No. two bidirectional buffering repairing combine valves (4) is connected with the A mouth of a hydraulic steering cylinder (12), the B mouth of No. two hydraulic steering cylinders (7); The B mouth of No. two bidirectional buffering repairing combine valves (4) is connected with the A mouth of No. two hydraulic steering cylinders (7), the B mouth of a hydraulic steering cylinder (12), and the T mouth of No. two bidirectional buffering repairing combine valves (4) is connected with hydraulic reservoir (11).
2. bidirectional steering vehicle turning hydraulic system according to claim 1, it is characterized in that: a described bidirectional buffering repairing combine valve (8) comprises the check valve (8-1) between the P mouth that is connected the A mouth that turns to change-over valve (3) and a deflector (9) and is connected the security of system valve (8-2) of the A mouth of a check valve (8-1), the T mouth of security of system valve (8-2) is connected with hydraulic reservoir (11), also comprise the two bidirectional buffering valve (8-3 that are provided with relatively, 8-4) check valve (the 8-5 of relative setting with two, 8-6), the A mouth of the P mouth of one two-way cushion valve (8-3) and a check valve (8-5) is connected between the A mouth of the A mouth of a deflector (9) and a bidirectional buffering repairing combine valve (8), the A mouth of the P mouth of another bidirectional buffering valve (8-4) and another check valve (8-6) is connected between the B mouth of the B mouth of a deflector (9) and a bidirectional buffering repairing combine valve (8), two bidirectional buffering valve (8-3, T mouth 8-4) and two check valve (8-5, P mouth 8-6) all is connected with hydraulic reservoir (11).
3. bidirectional steering vehicle turning hydraulic system according to claim 1, it is characterized in that: described No. two bidirectional buffering repairing combine valves (4) comprise the check valve (4-1) between the P mouth that is connected the B mouth that turns to change-over valve (3) and No. two deflectors (6) and are connected the security of system valve (4-2) of the A mouth of a check valve (4-1) that the T mouth of security of system valve (4-2) is connected with hydraulic reservoir (11); Also comprise the two bidirectional buffering valve (4-3 that are provided with relatively, 4-4) check valve (the 4-5 of relative setting with two, 4-6), the A mouth of the P mouth of one two-way cushion valve (4-3) and a check valve (4-5) is connected between the A mouth of the A mouth of No. two deflectors (6) and No. two bidirectional buffering repairing combine valves (4), the A mouth of the P mouth of another bidirectional buffering valve (4-4) and another check valve (4-6) is connected between the B mouth of the B mouth of No. two deflectors (6) and No. two bidirectional buffering repairing combine valves (4), two bidirectional buffering valve (4-3, T mouth 4-4) and two check valve (4-5, P mouth 4-6) all is connected with hydraulic reservoir (11).
4. according to the described bidirectional steering vehicle turning hydraulic system of one of claim 1 to 3, it is characterized in that: described No. one, No. two deflectors (9,6) are all-hydraulic steering gear.
5. according to the described bidirectional steering vehicle turning hydraulic system of one of claim 1 to 3, it is characterized in that: the described interlocking change-over valve (3) that turns to is two position and four-way reversing valves.
6. according to the described bidirectional steering vehicle turning hydraulic system of one of claim 1 to 3, it is characterized in that: two hydraulic steering cylinders (12,7) are the double-acting piston hydraulic actuating cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101911346A CN100515847C (en) | 2007-12-10 | 2007-12-10 | Bidirectional steering vehicle turning hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101911346A CN100515847C (en) | 2007-12-10 | 2007-12-10 | Bidirectional steering vehicle turning hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101177145A true CN101177145A (en) | 2008-05-14 |
| CN100515847C CN100515847C (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101911346A Expired - Fee Related CN100515847C (en) | 2007-12-10 | 2007-12-10 | Bidirectional steering vehicle turning hydraulic system |
Country Status (1)
| Country | Link |
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| CN (1) | CN100515847C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152719A (en) * | 2011-02-15 | 2011-08-17 | 伊卡路斯(苏州)车辆系统有限公司 | Damping control buffering system with high integration |
| CN102351005A (en) * | 2011-08-08 | 2012-02-15 | 徐州重型机械有限公司 | Multi-mode steering hydraulic control system and wheeled crane using same |
| CN102351004A (en) * | 2011-07-26 | 2012-02-15 | 浙江吉利汽车研究院有限公司 | Automobile power-assisted steering system |
| CN104176107A (en) * | 2014-09-02 | 2014-12-03 | 浙江亿森机械有限公司 | Steering control mechanism of light caterpillar tractor |
| CN104309683A (en) * | 2014-09-22 | 2015-01-28 | 三一汽车起重机械有限公司 | Hydraulic steering system and wheel crane |
| CN106476666A (en) * | 2016-10-31 | 2017-03-08 | 中国煤炭科工集团太原研究院有限公司 | Radial type bidirectional driving Self-loading-unloading rubber tire transport trolley |
| CN108290604A (en) * | 2015-12-08 | 2018-07-17 | 液压诺德流体技术有限公司 | Hydraulic steering |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0379474A (en) * | 1989-08-22 | 1991-04-04 | Toyota Autom Loom Works Ltd | Full hydraulic power steering device |
| US5291962A (en) * | 1989-11-07 | 1994-03-08 | Hino Jidosha Kogyo Kabushiki Kaisha | Power steering device for use in motor vehicles |
| CN2158823Y (en) * | 1993-06-07 | 1994-03-16 | 中国农业机械化科学研究院 | Pressure-controlled automatic compensation type load-sensing hydraulic rotating apparatus |
| CN2664968Y (en) * | 2003-10-28 | 2004-12-22 | 曹斌 | Vehicle bi-directional driving hydraulic equipment |
| CN100391773C (en) * | 2005-12-09 | 2008-06-04 | 武汉理工大学 | Bidirectionally steering electric machineshop car |
-
2007
- 2007-12-10 CN CNB2007101911346A patent/CN100515847C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152719A (en) * | 2011-02-15 | 2011-08-17 | 伊卡路斯(苏州)车辆系统有限公司 | Damping control buffering system with high integration |
| CN102152719B (en) * | 2011-02-15 | 2012-09-19 | 伊卡路斯(苏州)车辆系统有限公司 | Damping control buffering system with high integration |
| CN102351004A (en) * | 2011-07-26 | 2012-02-15 | 浙江吉利汽车研究院有限公司 | Automobile power-assisted steering system |
| CN102351005A (en) * | 2011-08-08 | 2012-02-15 | 徐州重型机械有限公司 | Multi-mode steering hydraulic control system and wheeled crane using same |
| CN102351005B (en) * | 2011-08-08 | 2012-11-21 | 徐州重型机械有限公司 | Multi-mode steering hydraulic control system and wheeled crane using same |
| CN104176107A (en) * | 2014-09-02 | 2014-12-03 | 浙江亿森机械有限公司 | Steering control mechanism of light caterpillar tractor |
| CN104176107B (en) * | 2014-09-02 | 2017-03-01 | 浙江亿森机械有限公司 | A kind of Light Crawler Tractor course changing control mechanism |
| CN104309683A (en) * | 2014-09-22 | 2015-01-28 | 三一汽车起重机械有限公司 | Hydraulic steering system and wheel crane |
| CN108290604A (en) * | 2015-12-08 | 2018-07-17 | 液压诺德流体技术有限公司 | Hydraulic steering |
| CN106476666A (en) * | 2016-10-31 | 2017-03-08 | 中国煤炭科工集团太原研究院有限公司 | Radial type bidirectional driving Self-loading-unloading rubber tire transport trolley |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100515847C (en) | 2009-07-22 |
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Granted publication date: 20090722 Termination date: 20171210 |