CN104627080A - Boarding system of large mine car - Google Patents

Boarding system of large mine car Download PDF

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Publication number
CN104627080A
CN104627080A CN201510093193.4A CN201510093193A CN104627080A CN 104627080 A CN104627080 A CN 104627080A CN 201510093193 A CN201510093193 A CN 201510093193A CN 104627080 A CN104627080 A CN 104627080A
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CN
China
Prior art keywords
lifting cylinder
boarding
car
valve
motor
Prior art date
Application number
CN201510093193.4A
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Chinese (zh)
Other versions
CN104627080B (en
Inventor
张志刚
杨诚潇
Original Assignee
中国重汽集团济南动力有限公司
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Application filed by 中国重汽集团济南动力有限公司 filed Critical 中国重汽集团济南动力有限公司
Priority to CN201510093193.4A priority Critical patent/CN104627080B/en
Publication of CN104627080A publication Critical patent/CN104627080A/en
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Publication of CN104627080B publication Critical patent/CN104627080B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R3/00Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
    • B60R3/007Removable steps or ladders, e.g. foldable

Abstract

The invention discloses a boarding system of a large mine car. The boarding system comprises a boarding mechanism, a lifting cylinder, an electric pump and an electric appliance system. The boarding mechanism comprises a boarding ladder and a pin, wherein one end of the boarding ladder is hinged to a car chassis, the lugs of the boarding ladder are hinged to the piston rod of the lifting cylinder through the pin, and the lifting cylinder pushes the boarding mechanism to turn over around the hinge point of the boarding ladder and the car chassis. The lifting cylinder is connected with a hydraulic one-way valve to allow the boarding mechanism hinged to the piston rod of the lifting cylinder to keep a certain turning-over angle. The electric pump powers the lifting cylinder. The electric appliance system is a control device. The boarding system has the advantages that an external power supply is used, the electric pump can be independently operated on or off the mine car, telescoping of the piston rod of the lifting cylinder is achieved through hydraulic oil, and the boarding ladder can turn over freely; the boarding and alighting function of the common boarding ladder is brought into play, and boarding and alighting postures conform to the requirements of ergonomics and large car ground clearance.

Description

Truck system stepped on by a kind of large mine car

Technical field

The present invention relates to a kind of large mine car and step on truck system, particularly a kind ofly stepping on truck system by operating the large mine car that can overturn voluntarily on car or under car.

Background technology

Along with the development of world economy, domestic and international large surface mine scale constantly expands, the effect of large-tonnage mine car highlights, when equal production volume, large-tonnage mine car can reduce uses car quantity, reduces chaufeur quantity, be convenient to management, increase work efficiency and safety, obtain higher economic benefit, so large-tonnage mine car is ordered in increasing mining area.Mine car manufacturing firm is for meeting consumers' demand, improve constantly the dead-weight capacity of mine car, its profile corresponding just constantly increases, tire does not stop to strengthen, vehicle ground clearance increases thereupon, people get on or off the bus more and more needs special purpose device, and the design engineer that is set to of boarding ladder must not irrespective problem.Increase adjoint ground Clearance and increase for solving contour of the vehicle people are got on or off the bus brought impact, many producers directly arrange longer ladder and are fixed on vehicle chassis and get on or off the bus meet the needs of human engineering to meet operating personal, but ground Clearance corresponding reduction, angle of attach is less, affects the crossing ability of vehicle; Ladder lower end one secondary is marked time and is set to flexible structure by some producer, to mark time more easily movement due to flexibility although can guarantee that vehicle angle of attach is unaffected, and it is very inconvenient and with stepping on empty danger that operating personal is got on or off the bus.

Summary of the invention

Technical matters to be solved by this invention is the defect existed for prior art, there is provided a kind of and step on truck system by operating the large mine car that can overturn voluntarily on car or under car, solution vehicle overall size increases the vehicle ground clearance brought needs increase to need to meet the contradiction of ergonomic demands aspect to keep larger angle of attach maintenance trafficability and operating personal to get on or off the bus.

For solving this technical matters, the invention provides a kind of large mine car and step on truck system, comprise and step on mechanism of car, load lifting cylinder, motor-drive pump and electric system, described mechanism of car of stepping on is made up of boarding ladder body and bearing pin, boarding ladder body one end is articulated with vehicle chassis, the hanger be located on boarding ladder body is hinged by the piston rod of bearing pin and load lifting cylinder, and load lifting cylinder promotes to step on mechanism of car around the hinge-point of boarding ladder body and vehicle chassis and overturns; Described load lifting cylinder is connected with hydraulic control one-way valve, and the piston rod long period of lifting can be fixed on a certain position by hydraulic control one-way valve, thus makes the step on mechanism of car hinged with piston of load lifting cylinder bar remain on a certain flip angle; Described motor-drive pump is the propulsion source of load lifting cylinder, comprise the fuel tank, filter, the first check valve, electrical plunger pump, the second check valve, flow regulating valve, solenoid directional control valve and the by pass valve that connect successively, described electrical plunger pump relies on eccentric rotation, under the cooperation of the first check valve second check valve, constantly realize oil suction and force feed action, described solenoid directional control valve is two-position four way change valve, relies on the movement of electromagnetic valve change-over valve to realize fluid turnover load lifting cylinder; Described electric system is control setup, comprise external source, the first motor-drive pump switch k1 and the second motor-drive pump switch k3 and the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4, electrical plunger pump is controlled by the first motor-drive pump switch k1 and the second motor-drive pump switch k3, and solenoid directional control valve is controlled by the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4.

Described first motor-drive pump switch k1 and the first electromagnetic valve switch k2 is placed in and vehicle chassis forms master cock under car, and the second motor-drive pump switch k3 and the second electromagnetic valve switch k4 is placed in master cock on the indoor formation car of vehicular drive.

Described load lifting cylinder and each element of electrokinetic pump system are connected by pipeline, and each element of electric system is connected by wire harness.

Beneficial effect: the present invention, can independent manipulation motor-drive pump onboard or under car by extraneous power supply, by the effect of hydraulic oil, actuating unit piston of load lifting cylinder bar is realized flexible, thus boarding ladder can freely be overturn.The present invention had both played the function that common boarding ladder is got on or off the bus, realize by upset the demand that upper and lower posture meets human engineering and vehicle larger ground Clearance again, have be skillfully constructed, compact conformation, volume are little, quality is light, bearing pressure is large, advanced technology, use safety, easy for installation, practical advantage.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

In figure: 1 steps on mechanism of car, 2 load lifting cylinders, 3 motor-drive pumpes, 4 electric systems, 11 boarding ladder bodies, 12 bearing pins, 21 hydraulic control one-way valves, 31 fuel tanks, 32 filters, 33 first check valves, 34 electrical plunger pumps, 35 second check valves, 36 flow regulating valve, 37 solenoid directional control valves, 38 by pass valves, 41 external sources, the first motor-drive pump switch k1, the second motor-drive pump switch k3, the first electromagnetic valve switch k2, the second electromagnetic valve switch k4.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is specifically described.

Figure 1 shows that structural representation of the present invention.

The present invention includes and step on mechanism of car 1, load lifting cylinder 2, motor-drive pump 3, electric system 4 and pipeline, wire harness.

Described mechanism of car 1 of stepping on is made up of boarding ladder body 11 and bearing pin 12, boarding ladder body 11 one end is articulated with vehicle chassis, the hanger be located on boarding ladder body 11 is hinged with the piston rod of load lifting cylinder 2 by bearing pin 12, load lifting cylinder 2 promotes to step on mechanism of car 1 and overturns around the hinge-point of boarding ladder body 11 with vehicle chassis, thus make operating personal to climb up smoothly or to go down vehicle chassis, and after being turned to maximum angle, do not affect the ground Clearance of vehicle, keep larger angle of attach.

Described load lifting cylinder 2 is power element, its one end and vehicle chassis hinged, the other end by bearing pin 12 with to step on mechanism of car 1 hinged, by flexible decline and the rising realizing boarding ladder body 11 of piston rod.

Described load lifting cylinder 2 is connected with hydraulic control one-way valve 21 and is integrated in one, hydraulic control one-way valve 21 has the effect of being locked to, the piston rod long period of load lifting cylinder 2 can be fixed on a certain position, thus make the step on mechanism of car 1 hinged with load lifting cylinder 2 piston rod remain on a certain flip angle, realize the location of system to pedal.

Described motor-drive pump 3 is the propulsion source of load lifting cylinder 2, comprise the fuel tank 31, filter 32, first check valve 33, electrical plunger pump 34, second check valve 35, flow regulating valve 36, solenoid directional control valve 37 and the by pass valve 38 that connect successively, described electrical plunger pump 34 relies on eccentric rotation, under the cooperation of the first check valve 33 second check valve 35, constantly realize oil suction and force feed action.

Described solenoid directional control valve 37 is two-position four way change valve, relies on the movement of electromagnetic valve change-over valve 37 to realize fluid turnover load lifting cylinder 2 by the break-make of power supply.

Described fuel tank 31, filter 32, first check valve 33, electrical plunger pump 34, second check valve 35, flow regulating valve 36, solenoid directional control valve 37 and by pass valve 38 are integrated in one, and volume is little, and quality is light, bearing pressure is large.

Described electric system 4 is control setup, comprise external source 41, first motor-drive pump switch k1 and the second motor-drive pump switch k3 and the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4, electrical plunger pump 34 is controlled by the first motor-drive pump switch k1 and the second motor-drive pump switch k3, solenoid directional control valve 37 is controlled by the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4, and wherein the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4 controls the decline of stepping on mechanism of car 1.

Described electric system 4 to be divided on car master cock under master cock and car, wherein the first motor-drive pump switch k1 and the first electromagnetic valve switch k2 is placed in and vehicle chassis forms master cock under car, be arranged in vehicle chassis, operating personal can in the lifting of car lower-pilot boarding ladder; Second motor-drive pump switch k3 and the second electromagnetic valve switch k4 is placed in master cock on the indoor formation car of vehicular drive, be arranged on operator's compartment, make operating personal can handle the lifting of mechanism to pedal onboard, such lifting being arranged so that operating personal both can operate boarding ladder onboard also can operate the lifting of boarding ladder under car.

Described load lifting cylinder 2 and each element of motor-drive pump 3 system are connected by pipeline, and each element of electric system 4 is connected by wire harness.

Working process of the present invention and principle of work:

Under normal condition, vehicle is stepped on mechanism of car 1 and is in the state giving rise to maximum angle, when operating personal needs to get on the bus or get off, press the first electromagnetic valve switch k2 or the second electromagnetic valve switch k4 in electric system 4, solenoid directional control valve 37 right wing in motor-drive pump 3 is connected, then the first motor-drive pump switch k1 in electric system 4 or the second motor-drive pump switch k3 is pressed, electrical plunger pump 34 brings into operation, under the cooperation of the first check valve 33 and the second check valve 35, electrical plunger pump 34 relies on the eccentric rotation of electrical motor, pump, oil suction from fuel tank 31, fluid pushes the first check valve 33 open through filter 32, be inhaled into electrical plunger pump 34, then push check valve 35 open, the right chamber in load lifting cylinder 2 is entered through flow regulating valve 36 and solenoid directional control valve 37, promotion piston moves to left, the hydraulic control one-way valve 21 be now integrated in load lifting cylinder 2 pushes one-way cock open under the effect of high pressure oil, the fluid in left chamber flows back to fuel tank 31 through solenoid directional control valve 37, by the pressure release of by pass valve 38 draining when oil pressure is higher, such promotion is stepped on mechanism of car 1 and is slowly overturn downwards around the hinge-point of boarding ladder body 11 with vehicle, after stopping upset, the hydraulic control one-way valve 21 be integrated in load lifting cylinder 2 locks the movement position of load lifting cylinder 2, make to step on mechanism of car 1 can stop at an arbitrary position.

The present invention, can independent manipulation motor-drive pump onboard or under car by extraneous power supply, by the effect of hydraulic oil, actuating unit piston of load lifting cylinder bar is realized flexible, thus boarding ladder can freely be overturn.The present invention had both played the function that common boarding ladder is got on or off the bus, realize by upset the demand that upper and lower posture meets human engineering and vehicle larger ground Clearance again, have be skillfully constructed, compact conformation, volume are little, quality is light, bearing pressure is large, advanced technology, use safety, easy for installation, practical advantage.

The above-mentioned embodiment of the present invention, just casehistory, is not only, and the change within the scope of the present invention all or equivalent scope of the present invention is all surrounded by the present invention.

Claims (3)

1. truck system stepped on by a large mine car, comprise and step on mechanism of car (1), load lifting cylinder (2), motor-drive pump (3) and electric system (4), it is characterized in that: described in step on mechanism of car (1) and be made up of boarding ladder body (11) and bearing pin (12), boarding ladder body (11) one end is articulated with vehicle chassis, the hanger be located on boarding ladder body (11) is hinged with the piston rod of load lifting cylinder (2) by bearing pin (12), load lifting cylinder (2) promotes to step on mechanism of car (1) and overturns around the hinge-point of boarding ladder body (11) with vehicle chassis, described load lifting cylinder (2) is connected with hydraulic control one-way valve (21), the piston rod long period of load lifting cylinder (2) can be fixed on a certain position by hydraulic control one-way valve (21), thus makes the step on mechanism of car (1) hinged with load lifting cylinder (2) piston rod remain on a certain flip angle, the propulsion source that described motor-drive pump (3) is load lifting cylinder (2), comprise the fuel tank (31), filter (32), the first check valve (33), electrical plunger pump (34), the second check valve (35), flow regulating valve (36), solenoid directional control valve (37) and the by pass valve (38) that connect successively, described electrical plunger pump (34) relies on eccentric rotation, under the cooperation of the first check valve (33) second check valve (35), constantly realize oil suction and force feed action, described solenoid directional control valve (37) is two-position four way change valve, relies on the movement of electromagnetic valve change-over valve (37) to realize fluid turnover load lifting cylinder (2), described electric system (4) is control setup, comprise external source (41), the first motor-drive pump switch k1 and the second motor-drive pump switch k3 and the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4, electrical plunger pump (34) is controlled by the first motor-drive pump switch k1 and the second motor-drive pump switch k3, and solenoid directional control valve (37) is controlled by the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4.
2. truck system stepped on by large mine car according to claim 1, it is characterized in that: described first motor-drive pump switch k1 and the first electromagnetic valve switch k2 is placed in and vehicle chassis forms master cock under car, and the second motor-drive pump switch k3 and the second electromagnetic valve switch k4 is placed in master cock on the indoor formation car of vehicular drive.
3. truck system stepped on by large mine car according to claim 1, it is characterized in that: described load lifting cylinder 2 and each element of motor-drive pump (3) system are connected by pipeline, and electric system (4) each element is connected by wire harness.
CN201510093193.4A 2015-03-02 2015-03-02 Boarding system of large mine car CN104627080B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510093193.4A CN104627080B (en) 2015-03-02 2015-03-02 Boarding system of large mine car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510093193.4A CN104627080B (en) 2015-03-02 2015-03-02 Boarding system of large mine car

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CN104627080A true CN104627080A (en) 2015-05-20
CN104627080B CN104627080B (en) 2017-01-18

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547040A (en) * 1994-06-28 1996-08-20 Hwh Corporation Automatic step for recreational vehicles
US5584493A (en) * 1995-02-03 1996-12-17 Pierce Manufacturing Inc. Folding step system for vehicles
CN200988458Y (en) * 2006-10-17 2007-12-12 丁荣主 Folding ladder for vehicle
CN201736900U (en) * 2010-06-25 2011-02-09 三一重工股份有限公司 Elevator for engineering vehicles
JP2011038264A (en) * 2009-08-07 2011-02-24 Hitachi Constr Mach Co Ltd Step device of construction machinery
CN201849407U (en) * 2010-08-15 2011-06-01 芜湖中集瑞江汽车有限公司 Hydraulic lifting foldable ladder
CN203727279U (en) * 2014-03-25 2014-07-23 江西科技学院 Simple retractable foot ladder device for cab of large engineering vehicle
CN203766632U (en) * 2014-02-27 2014-08-13 浙江锐野专用车辆有限公司 Car-mounted built-in concealed extendable step structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547040A (en) * 1994-06-28 1996-08-20 Hwh Corporation Automatic step for recreational vehicles
US5584493A (en) * 1995-02-03 1996-12-17 Pierce Manufacturing Inc. Folding step system for vehicles
CN200988458Y (en) * 2006-10-17 2007-12-12 丁荣主 Folding ladder for vehicle
JP2011038264A (en) * 2009-08-07 2011-02-24 Hitachi Constr Mach Co Ltd Step device of construction machinery
CN201736900U (en) * 2010-06-25 2011-02-09 三一重工股份有限公司 Elevator for engineering vehicles
CN201849407U (en) * 2010-08-15 2011-06-01 芜湖中集瑞江汽车有限公司 Hydraulic lifting foldable ladder
CN203766632U (en) * 2014-02-27 2014-08-13 浙江锐野专用车辆有限公司 Car-mounted built-in concealed extendable step structure
CN203727279U (en) * 2014-03-25 2014-07-23 江西科技学院 Simple retractable foot ladder device for cab of large engineering vehicle

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