CN104627080B - Boarding system of large mine car - Google Patents
Boarding system of large mine car Download PDFInfo
- Publication number
- CN104627080B CN104627080B CN201510093193.4A CN201510093193A CN104627080B CN 104627080 B CN104627080 B CN 104627080B CN 201510093193 A CN201510093193 A CN 201510093193A CN 104627080 B CN104627080 B CN 104627080B
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- Prior art keywords
- car
- lifting cylinder
- boarding
- valve
- pump
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/007—Removable steps or ladders, e.g. foldable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
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
Technical field
The present invention relates to car system stepped on by a kind of big mine car, particularly to a kind of by operating and can voluntarily turn on car or under car
Car system stepped on by the big mine car turning.
Background technology
With the development of World Economics, domestic and international large surface mine scale constantly expands, and the effect of large-tonnage mine car is convex
Aobvious, in the case of equal production volume, large-tonnage mine car can reduce uses car quantity, reduces driver's quantity, is easy to manage, improves
Work efficiency and safety, obtain higher economic benefit, and then large-tonnage mine car is ordered in increasing mining area.Mine car
Manufacturing firm is to meet user's request, improves constantly the deadweight tonnage of mine car, and its profile just constantly increases accordingly, and tire is not
Stop increasing, vehicle ground clearance increases therewith, and people get on or off the bus and have increasing need for special purpose device, being set to of access step is designed
The problem that teacher has to take into account that.Increase brought shadow that people are got on or off the bus by solving the contour of the vehicle increase adjoint road clearance
Ring, directly the longer ladder of setting is fixed on vehicle chassis and meets human engineering to meet operator and get on or off the bus for many producers
Need, but the road clearance accordingly reduce, approach angle is less, impact vehicle by property；Some producers are by ladder lower end one or two
Level is marked time and is set to flexible structure although may insure that vehicle approach angle is unaffected but marks time due to flexibility and is easier to move, behaviour
As personnel get on or off the bus very inconvenient and with step on sky danger.
Content of the invention
The technical problem to be solved is the defect existing for prior art, provides one kind to pass through on car or car
Car system stepped on by the big mine car that lower operation can voluntarily overturn, and solving the brought vehicle ground clearance of vehicle overall size increase needs
Increase and need to meet ergonomic demands' aspect to keep larger approach angle to maintain trafficability and operator to get on or off the bus
Contradiction.
For solving this technical problem, the invention provides car system stepped on by a kind of big mine car, including stepping on mechanism of car, lifting
Cylinder, electrodynamic pump and electric system, described mechanism of car of stepping on is made up of access step body and bearing pin, and access step body one end is articulated with car
Chassis, the hanger on access step body passes through that bearing pin is hinged with the piston rod of load lifting cylinder, and mechanism of car is stepped in load lifting cylinder promotion
Pin joint upset around access step body and vehicle chassis；Described load lifting cylinder is connected with hydraulic control one-way valve, and hydraulic control one-way valve can be by
The piston rod long period of lifting is fixed on a certain position, so that the step on mechanism of car hinged with piston of load lifting cylinder bar is maintained at certain
One flip angle；Described electrodynamic pump is the power source of load lifting cylinder, including the fuel tank being sequentially connected, filter, the first check valve, electricity
Dynamic plunger displacement pump, the second check valve, choke valve, solenoid directional control valve and overflow valve, described electrical plunger pump relies on the rotation of eccentric,
Under the cooperation of the first check valve and the second check valve, constantly realize oil suction and force feed action, described solenoid directional control valve is two
Four-way change-over valve, relies on the movement of solenoid directional control valve to realize fluid turnover load lifting cylinder；Described electric system is control device, including
External power supply, the first electronic switch pump k1 and the second electronic switch pump k3 and the first electromagnetic valve switch k2 and the second electromagnetic valve switch
K4, electrical plunger pump passes through the first electronic switch pump k1 and the second electronic switch pump k3 and controls, and solenoid directional control valve passes through the first electricity
Magnet valve switch k2 and the second electromagnetic valve switch k4 controls.
Described first electronic switch pump k1 and the first electromagnetic valve switch k2 is placed in and constitutes controlling switch under car on vehicle chassis,
Second electronic switch pump k3 and the second electromagnetic valve switch k4 is placed in controlling switch on the composition car of vehicle drive interior.
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 by extraneous power supply, onboard or under car all can independent manipulation electrodynamic pump, by hydraulic oil
Effect so that actuator piston of load lifting cylinder bar realize flexible, so that access step can freely overturn.The present invention both sent out
Wave the function that common access step is got on or off the bus, realized that upper and lower posture meets human engineering and vehicle is larger liftoff further through upset
The demand in gap, have be skillfully constructed, compact conformation, small volume, light weight, bearing pressure are big, advanced technology, using safety,
Easy for installation, practical advantage.
Brief description
Fig. 1 is the structural representation of the present invention.
In figure: 1 steps on mechanism of car, 2 load lifting cylinders, 3 electrodynamic pumps, 4 electric systems, 11 access step bodies, 12 bearing pins, 21 hydraulic control lists
Change to valve, 31 fuel tanks, 32 filters, 33 first check valves, 34 electrical plunger pumps, 35 second check valves, 36 choke valves, 37 electromagnetism
To valve, 38 overflow valves, 41 external power supplys, the first electronic switch pump k1, the second electronic switch pump k3, the first electromagnetic valve switch k2,
Second electromagnetic valve switch k4.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment specifically describes to the present invention.
Fig. 1 show the structural representation of the present invention.
The present invention includes stepping on mechanism of car 1, load lifting cylinder 2, electrodynamic pump 3, electric system 4 and pipeline, wire harness.
Described mechanism of car 1 of stepping on is made up of access step body 11 and bearing pin 12, and access step body 11 one end is articulated with vehicle bottom
Disk, the hanger on access step body 11 is hinged with the piston rod of load lifting cylinder 2 by bearing pin 12, and load lifting cylinder 2 promotes and steps on car machine
Structure 1 overturns around the pin joint of access step body 11 and vehicle chassis, so that operator can smoothly climb up or walk to get off
Chassis, and after being turned to maximum angle, do not affect the road clearance of vehicle, keep larger approach angle.
Described load lifting cylinder 2 is executive component, and its one end is hinged with vehicle chassis, and the other end passes through bearing pin 12 and steps on mechanism of car
1 is hinged, by the flexible decline realizing access step body 11 and the rising of piston rod.
Described load lifting cylinder 2 is connected with hydraulic control one-way valve 21 and is integrated in one, and hydraulic control one-way valve 21 has the effect of being locked to, can be by
The piston rod long period of load lifting cylinder 2 is fixed on a certain position, so that the step on mechanism of car 1 hinged with load lifting cylinder 2 piston rod is protected
Hold in a certain flip angle, realize the positioning of system to pedal.
Described electrodynamic pump 3 is the power source of load lifting cylinder 2, including the fuel tank 31 being sequentially connected, filter 32, the first check valve
33rd, electrical plunger pump 34, the second check valve 35, choke valve 36, solenoid directional control valve 37 and overflow valve 38, described electrical plunger pump 34
Rely on the rotation of eccentric, under the cooperation of the first check valve 33 and the 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 solenoid directional control valve 37 by the break-make of power supply
Realize fluid turnover load lifting cylinder 2.
Described fuel tank 31, filter 32, the first check valve 33, electrical plunger pump 34, the second check valve 35, choke valve 36,
Solenoid directional control valve 37 and overflow valve 38 are integrated in one, small volume, and light weight, bearing pressure are big.
Described electric system 4 is control device, opens including external power supply 41, the first electronic switch pump k1 and the second electrodynamic pump
Close k3 and the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4, electrical plunger pump 34 passes through the first electronic switch pump k1 and the
Two electronic switch pump k3 control, and solenoid directional control valve 37 passes through the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4 and controls, its
In the first electromagnetic valve switch k2 and the second electromagnetic valve switch k4 control the decline stepping on mechanism of car 1.
Described electric system 4 is divided into controlling switch under controlling switch and car on car, the wherein first electronic switch pump k1 and
One electromagnetic valve switch k2 is placed in and constitutes controlling switch under car on vehicle chassis, is arranged in vehicle chassis, operator can be in car
The lifting of lower-pilot access step；Second electronic switch pump k3 and the second electromagnetic valve switch k4 is placed on the composition car of vehicle drive interior
Controlling switch, is arranged on driver's cabin so that operator can onboard manipulate the lifting of mechanism to pedal, such setting makes
Obtaining operator both can onboard operate the lifting of access step can also operate the lifting of access step under car.
Described load lifting cylinder 2 and each element of electrodynamic pump 3 system are connected by pipeline, and each element of electric system 4 is by wire harness even
Connect.
The work process of the present invention and operation principle:
Under normal condition, vehicle is stepped on mechanism of car 1 and is in the state giving rise to maximum angle, when operator need get on the bus or
When getting off, press the first electromagnetic valve switch k2 or the second electromagnetic valve switch k4, the electromagnetic switch in electrodynamic pump 3 in electric system 4
Valve 37 right wing is connected, and then presses the first electronic switch pump k1 in electric system 4 or the second electronic switch pump k3, power post
Plug pump 34 brings into operation, and under the cooperation of the first check valve 33 and the second check valve 35, electrical plunger pump 34 relies on motor inclined
The rotation of heart wheel, pumps, oil suction from fuel tank 31, and fluid pushes the first check valve 33 open through filter 32, is inhaled
Enter electrical plunger pump 34, then push check valve 35 open, enter the right chamber in load lifting cylinder 2 through choke valve 36 and solenoid directional control valve 37,
Piston is promoted to move to left, the hydraulic control one-way valve 21 being now integrated in load lifting cylinder 2 pushes one-way cock in the presence of hydraulic oil open, left
The fluid in chamber flows back to fuel tank 31 through solenoid directional control valve 37, passes through overflow valve 38 draining pressure release, so promote and step on car when oil pressure is higher
Mechanism 1 slowly downwardly turns over around the pin joint of access step body 11 and vehicle, after stopping upset, is integrated in the liquid in load lifting cylinder 2
The movement position that control check valve 21 locks load lifting cylinder 2 can stop at an arbitrary position so that stepping on mechanism of car 1.
The present invention by extraneous power supply, onboard or under car all can independent manipulation electrodynamic pump, by the effect of hydraulic oil, make
Obtain actuator piston of load lifting cylinder bar to realize stretching, so that access step can freely overturn.The present invention had both played commonly
The function that access step is got on or off the bus, realizes upper and lower posture further through upset and meets human engineering and the need of vehicle larger road clearance
Ask, have be skillfully constructed, compact conformation, small volume, light weight, bearing pressure are big, advanced technology, using safe, easy for installation,
Practical advantage.
The embodiment above of the present invention, is merely illustrative, and is not only, all within the scope of the present invention or equivalent this
Change in the range of invention is all surrounded by the present invention.
Claims (3)
1. car system stepped on by a kind of big mine car, including stepping on mechanism of car (1), load lifting cylinder (2), electrodynamic pump (3) and electric system (4), its
It is characterised by: described mechanism of car (1) of stepping on is made up of access step body (11) and bearing pin (12), and access step body (11) one end is hinged
In vehicle chassis, the hanger on access step body (11) is hinged with the piston rod of load lifting cylinder (2) by bearing pin (12), lifting
Cylinder (2) promotes the pin joint upset stepping on mechanism of car (1) around access step body (11) and vehicle chassis；Described load lifting cylinder (2) connects
There is 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), from
And make the step on mechanism of car (1) hinged with load lifting cylinder (2) piston rod be maintained at a certain flip angle；Described electrodynamic pump (3) is lifting
The power source of cylinder (2), including the fuel tank (31) being sequentially connected, filter (32), the first check valve (33), electrical plunger pump
(34), the second check valve (35), choke valve (36), solenoid directional control valve (37) and overflow valve (38), described electrical plunger pump (34)
Rely on the rotation of eccentric, under the cooperation of the first check valve (33) and the 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 solenoid directional control valve (37) to realize fluid turnover
Load lifting cylinder (2)；Described electric system (4) is control device, including external power supply (41), the first electronic switch pump (k1) and second
Electronic switch pump (k3) and the first electromagnetic valve switch (k2) and the second electromagnetic valve switch (k4), electrical plunger pump (34) passes through first
Electronic switch pump (k1) and the second electronic switch pump (k3) control, solenoid directional control valve (37) pass through the first electromagnetic valve switch (k2) and
Second electromagnetic valve switch (k4) controls.
2. big mine car according to claim 1 step on car system it is characterised in that: described first electronic switch pump (k1) and
One electromagnetic valve switch (k2) is placed on vehicle chassis and constitutes controlling switch, the second electronic switch pump (k3) and the second electromagnetic valve under car
Switch (k4) is placed in controlling switch on the composition car of vehicle drive interior.
3. big mine car according to claim 1 step on car system it is characterised in that: described load lifting cylinder (2) and electrodynamic pump (3) system
Each element of uniting is connected by pipeline, and each element of electric system (4) is connected by wire harness.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104627080A CN104627080A (en) | 2015-05-20 |
| CN104627080B true CN104627080B (en) | 2017-01-18 |
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ID=53206475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510093193.4A Active CN104627080B (en) | 2015-03-02 | 2015-03-02 | Boarding system of large mine car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104627080B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955787A (en) * | 2017-12-26 | 2019-07-02 | 北京三兴汽车有限公司 | Overturning pedal |
| CN113969907B (en) * | 2021-10-26 | 2023-11-07 | 徐州徐工矿业机械有限公司 | Boarding ladder hydraulic system, control method and engineering vehicle |
Family Cites Families (8)
| 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 |
| JP5329338B2 (en) * | 2009-08-07 | 2013-10-30 | 日立建機株式会社 | Construction equipment step equipment |
| 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 |
-
2015
- 2015-03-02 CN CN201510093193.4A patent/CN104627080B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104627080A (en) | 2015-05-20 |
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