CN103112382B - One is anti-pulls out cylinder control setup and quarry tipper - Google Patents
One is anti-pulls out cylinder control setup and quarry tipper Download PDFInfo
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- CN103112382B CN103112382B CN201310088584.8A CN201310088584A CN103112382B CN 103112382 B CN103112382 B CN 103112382B CN 201310088584 A CN201310088584 A CN 201310088584A CN 103112382 B CN103112382 B CN 103112382B
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Abstract
The invention discloses one to prevent pulling out cylinder control setup and quarry tipper, belong to dumping car technical field.The A1 hydraulic fluid port of this device is communicated with the rodless cavity of described load lifting cylinder, B1 hydraulic fluid port is communicated with the rod chamber of described load lifting cylinder, be communicated with between described A0 hydraulic fluid port and described A1 hydraulic fluid port, be communicated with between described B0 hydraulic fluid port and described B1 hydraulic fluid port, on the oil circuit of described balance cock between described B0 hydraulic fluid port and described B1 hydraulic fluid port, the control port of described balance cock connects described electromagnetic valve one, described check valve and described flow regulating valve one form an oil circuit in parallel, one end of described oil circuit in parallel is communicated with the oil circuit between described A0 hydraulic fluid port and described A1 hydraulic fluid port, and one end is communicated with described electromagnetic valve one in addition.The present invention, by arranging balance cock on the oil circuit of rod chamber connection, arranges flow regulating valve, check valve in parallel, makes balance cock have speed of response faster between rod chamber oil circuit and rodless cavity oil circuit, suppresses to pull out cylinder successful.
Description
Technical field
The present invention relates to dumping car technical field, particularly one is anti-pulls out cylinder control setup and quarry tipper.
Background technology
Quarry tipper is a kind of mining transportation vehicle being used for mining, being mainly used in mine has in the open been a kind of highway heavy-duty tipper that rock earthwork stripping and Ore Transportation task use, be applicable to all kinds of mine, hydraulic engineering, there is the features such as length of run is short, turn radius is little, load is heavy, physical dimension is large.
The discharging of quarry tipper is by lifting mechanism three revolute pair (O in figure
1, O
2, O
3) rotation and the stretching motion of load lifting cylinder realize, as shown in Figure 1.For preventing unloading material close to car body, bury wheel, railway carriage 3 and vehicle frame 1 hinge (O in figure
1) to railway carriage 3 tip designs longer distance (being referred to as rear seesaw), material need slip over rear seesaw and just can be removed.Railway carriage 3 and material will at O
1point forms lever principle.When body lifting angle is less, O
1point front solid accumulation is more, at this moment O
1the gravitational moment of some front material is greater than the gravitational moment of rear material, and load lifting cylinder 2 need provide certain moment of thrust can realize uniform rotation and the discharging of railway carriage; When railway carriage 3 lifting angle increases gradually, O
1point front material is piled up gradually on rear seesaw, may cause O
1the gravitational moment of some front material is less than the gravitational moment of rear material, and at this moment load lifting cylinder 2 need provide certain drag torque could realize the moment balance in compartment.
But quarry tipper is in the process of discharging, the accumulation of material on rear seesaw completes often instantaneously, turns over to end position after causing railway carriage rapidly, makes car load produce larger vibration, produces and pull out cylinder phenomenon.Theoretically, after existing, the compartment of seesaw all cannot be eradicated and pull out cylinder phenomenon.But it is less that packing ratio, dump angle railway carriage reasonable in design produces the probability of pulling out cylinder, and material has little time to pile up on rear seesaw to be just removed.Only have when the position that the larger material of vehicle loading viscosity or material load too rearward time, producing the probability of pulling out cylinder just can increase.
Dumping car produces and pulls out the comfort level that cylinder phenomenon has a strong impact on vehicle, and its pressure peak produced also will produce harmful effect to car load, therefore, be necessary to be optimized in system, pull out cylinder probability to reduce, and strengthens vehicle to the adaptive capacity of different material.
Summary of the invention
Pull out to solve the generation of current dumping car the comfort level that cylinder phenomenon can affect vehicle, and dysgenic problem is produced to car load, now provide one and prevent pulling out cylinder control setup.Concrete technical scheme is as follows:
One is anti-pulls out cylinder control setup, be connected between load lifting cylinder and lifting valve, described load lifting cylinder is between vehicle frame and compartment, and be divided into rodless cavity and rod chamber, wherein, include flow regulating valve one, check valve one, electromagnetic valve and balance cock, the A hydraulic fluid port of described lifting valve is communicated with the A0 hydraulic fluid port of described device, the B hydraulic fluid port of described lifting valve is communicated with the B0 hydraulic fluid port of described device, the A1 hydraulic fluid port of described device is communicated with the rodless cavity of described load lifting cylinder, the B1 hydraulic fluid port of described device is communicated with the rod chamber of described load lifting cylinder, be communicated with between described A0 hydraulic fluid port and described A1 hydraulic fluid port, be communicated with between described B0 hydraulic fluid port and described B1 hydraulic fluid port, on the oil circuit of described balance cock between described B0 hydraulic fluid port and described B1 hydraulic fluid port, described check valve and described flow regulating valve one form an oil circuit in parallel, one end of described oil circuit in parallel is communicated with the oil circuit between described A0 hydraulic fluid port and described A1 hydraulic fluid port, one end is communicated with the control port of described electromagnetic valve one balance cock in addition, it is from described balance cock to described A0-A1 oil circuit that described check valve one flows to.
Preferably, described load lifting cylinder has two, and another one load lifting cylinder rodless cavity is communicated with the A2 hydraulic fluid port of described device, and rod chamber is communicated with the B2 hydraulic fluid port of described device, and described A2 hydraulic fluid port is communicated with A0-A1 oil circuit, and described B2 hydraulic fluid port is communicated with described B0-B1 oil circuit.
Preferably, also comprise oil return inlet T, electromagnetic valve one and flow regulating valve two, described electromagnetic valve is between described oil circuit in parallel and described balance cock, and described electromagnetic valve one connects described oil return inlet T, and described flow regulating valve two is positioned on the oil circuit between described electromagnetic valve and described oil return inlet T.
Preferably, described hydraulic fluid port A0, hydraulic fluid port B0, hydraulic fluid port A1 and hydraulic fluid port B1 place are provided with pressure tap.
Preferably, the oil circuit between described oil return inlet T and described hydraulic fluid port B1 is provided with by pass valve one.
Preferably, electromagnetic valve two is connected with between described oil return inlet T and described A0-A1 oil circuit, electromagnetic valve three is connected with between described oil return inlet T and described B0-B1 oil circuit, described B0-B1 oil circuit is parallel with check valve two and flow regulating valve three respectively with described balance cock, and described check valve two flows to as the direction along B1-B0 oil circuit.
Preferably, the oil circuit between described hydraulic fluid port B1 and described oil return inlet T is provided with by pass valve two.
Preferably, valve block described above is inserted valve, and is integrated in the valve block unifying.
A kind of quarry tipper, described quarry tipper has and described above anti-ly pulls out cylinder control setup.
Compared with prior art, what technique scheme provided anti-ly pulls out cylinder control setup and quarry tipper has the following advantages: arrange balance cock by the oil circuit that connects at rodless cavity, between the oil circuit and rodless cavity oil circuit of rod chamber connection, flow regulating valve, check valve in parallel are set, balance cock is made to have speed of response faster, suppress to pull out cylinder successful, simultaneously, balance cock also can change pro-active intervention into by passive response, reduce the probability producing and pull out cylinder, improve the stationarity in lifting process and traveling comfort.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the load lifting cylinder operating diagram provided in prior art;
Fig. 2 is that provide in the embodiment of the present invention anti-pulls out cylinder control setup operating diagram.
In accompanying drawing, the component list representated by each label is as follows:
1 vehicle frame, 2 load lifting cylinders, 3 railway carriages, 4 lifting valves, 5 check valve one, 6 flow regulating valve one, 7 balance cocks, 8 electromagnetic valve one, 9 flow regulating valve two, 10 by pass valve two, 11 electromagnetic valve two, 12 electromagnetic valve three, 13 by pass valve one, 14 check valve two, 15 flow regulating valve three.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 2, embodiments provide one to prevent pulling out cylinder control setup, be connected between load lifting cylinder 2 and lifting valve 4, load lifting cylinder 2 is between vehicle frame 1 and compartment 3, and be divided into rodless cavity and rod chamber, wherein this device includes flow regulating valve 1, check valve 1, electromagnetic valve 1 and balance cock 7, the A0 hydraulic fluid port of the A hydraulic fluid port communication apparatus of lifting valve 4, the B0 hydraulic fluid port of the B hydraulic fluid port communication apparatus of lifting valve 4, the A1 hydraulic fluid port of device is communicated with the rodless cavity of load lifting cylinder 2, the B1 hydraulic fluid port of device is communicated with the rod chamber of load lifting cylinder 2, be communicated with between A0 hydraulic fluid port and A1 hydraulic fluid port, be communicated with between B0 hydraulic fluid port and B1 hydraulic fluid port, on the oil circuit of balance cock 7 between B0 hydraulic fluid port and B1 hydraulic fluid port, the control port connected electromagnetic valve 1 of balance cock 7, check valve 1 and flow regulating valve 1 form an oil circuit in parallel, one end of oil circuit in parallel is communicated with the oil circuit between A0 hydraulic fluid port and A1 hydraulic fluid port, one end is communicated with electromagnetic valve 1 in addition, wherein check valve 1 flows to is from balance cock to A0-A1 oil circuit.Load lifting cylinder 2 has two, the A2 hydraulic fluid port of another one load lifting cylinder rodless cavity communication apparatus, the B2 hydraulic fluid port of rod chamber communication apparatus, and A2 hydraulic fluid port is communicated with A0-A1 oil circuit, and B2 hydraulic fluid port is communicated with B0-B1 oil circuit.Device also comprises oil return inlet T and flow regulating valve 29, and electromagnetic valve 1 connects oil return inlet T, and flow regulating valve 29 is positioned on the oil circuit between electromagnetic valve 1 and oil return inlet T.Hydraulic fluid port A0, hydraulic fluid port B0, hydraulic fluid port A1 and hydraulic fluid port B1 place are provided with pressure tap.Oil circuit between oil return inlet T and hydraulic fluid port B1 is provided with by pass valve 1, and by pass valve 1 is safety valve, opens, the safety of protection system element when rod chamber internal pressure reaches this valve setting value.Be connected with electromagnetic valve 2 11 between oil return inlet T and A0-A1 oil circuit, between oil return inlet T and B0-B1 oil circuit, be connected with electromagnetic valve 3 12, B0-B1 oil circuit is parallel with check valve 2 14 and flow regulating valve 3 15 respectively with balance cock 7.Wherein, check valve two flows to as the direction along B1-B0 oil circuit.Oil circuit between hydraulic fluid port B1 and oil return inlet T is provided with by pass valve 2 10.Above-mentioned valve block is inserted valve, and is integrated in the valve block unifying.
The principle of work of the embodiment of the present invention is simply described below.
During body lifting, the A0 mouth of the fluid access to plant that the A mouth of lifting valve provides, and entered the rodless cavity of load lifting cylinder 2 by A1, A2 mouth of device, thus load lifting cylinder 2 is extended produce thrust, tumble discharging in compartment 3; Simultaneously, the fluid of oil circuit A0-A1 (A2) enters the control chamber of balance cock 7 through flow regulating valve 1, electromagnetic valve 1 (electromagnet not electric), balance cock 7 is opened, the fluid of load lifting cylinder 2 rod chamber can flow back to lifting valve 4 through the B1 mouth of device, B2 mouth, B0 mouth, flow back to fuel tank by lifting valve 4 inner passage, realize the lifting action of vehicle.Wherein balance cock 7 is the main valve suppressing to pull out cylinder, and when oil pressure in load lifting cylinder is reduced to setting value because pulling out cylinder, this valve cuts out rapidly the path of rod chamber and fuel tank, makes rod chamber be in closed state, reaches the effect suppressing to pull out cylinder.Flow regulating valve 1 is for controlling the speed in compartment during floating decline;
When making material be deposited in instantaneously on the rear seesaw in compartment 3, compartment 3 will by material pressure backward, and load lifting cylinder 2 produces and pulls out cylinder phenomenon; When pulling out cylinder, load lifting cylinder 2 rodless cavity internal pressure reduces, even produce negative pressure, fluid in balance cock 7 control chamber flows back to oil circuit A0-A1 (A2) through electromagnetic valve 1 (electromagnet not electric), check valve 1, balance valve core is closed, load lifting cylinder 8 rod chamber is closed, plays the effect suppressing to pull out cylinder; Because the response pressure of check valve 1 is extremely low, the control chamber of balance cock 7 can be closed rapidly in release, improves the speed of response of balance valve core, namely improves the promptness suppressing to pull out cylinder.For convenience of debugging and trouble diagnosing, anti-pulling out on cylinder control setup devises 4 pressure taps M1, M2, M3, M4;
During the larger material of sustained delivery viscosity, electromagnetic valve 1 can be made to obtain electric, the fluid of balance cock 7 control chamber flows back to fuel tank through electromagnetic valve 1, flow regulating valve 29, and balance valve core will be in closed condition always, for load lifting cylinder 2 provides lasting back pressure, back pressure value can be set by balance valve core set screw; Because load lifting cylinder 2 rod chamber is in closed condition always, be namely in suppression always and pull out cylinder state, change passive response is pro-active intervention, improves inhibition.
When carriage floating declines (freely declining under gravity), two electromagnetic valves 11 and 12 (electromagnet obtains electric) can make the rodless cavity of load lifting cylinder 2, rod chamber connects fuel tank respectively, load lifting cylinder 2 is in relaxed state, and compartment freely declines under gravity; Now flow regulating valve 3 15 plays the effect regulating compartment descending speed, by changing orifice plug, regulates the size of throttle diameter, thus regulates the speed that carriage floating declines.
When vehicle needs maintenance, compartment 3 need be lifted to top, and plug safety pin (not shown), after having overhauled, operator often forgets and pulls out safety pin, and uses " power dropping " function to be landed in compartment by force, thus causes safety pin to bend, the accident such as to cut off; Now, reduce the pressure of " power dropping " by by pass valve 2 10, the response pressure of this valve is lower; Preferred as the present embodiment, setting pressure is 20bar.
Anti-cylinder control setup balance valve core speed of response of pulling out provided by the invention is very fast, suppresses to pull out cylinder successful; For the material that viscosity is larger, can the passive response of balance valve core be changed into pro-active intervention, reduce the probability producing and pull out cylinder, improve stationarity and the traveling comfort of lifting process; Carriage floating descending speed is adjustable; Operator forgets when pulling out safety pin, can protect safety pin and jack thereof.
A kind of quarry tipper, quarry tipper has and described above anti-ly pulls out cylinder control setup.Other parts of quarry tipper with reference to prior art, can not repeat them here.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. prevent pulling out cylinder control setup for one kind, be connected between load lifting cylinder and lifting valve, described load lifting cylinder is between vehicle frame and compartment, and be divided into rodless cavity and rod chamber, it is characterized in that, include flow regulating valve one, check valve one and balance cock, the A hydraulic fluid port of described lifting valve is communicated with the A0 hydraulic fluid port of described device, the B hydraulic fluid port of described lifting valve is communicated with the B0 hydraulic fluid port of described device, the A1 hydraulic fluid port of described device is communicated with the rodless cavity of described load lifting cylinder, the B1 hydraulic fluid port of described device is communicated with the rod chamber of described load lifting cylinder, be communicated with between described A0 hydraulic fluid port and described A1 hydraulic fluid port, be communicated with between described B0 hydraulic fluid port and described B1 hydraulic fluid port, on the oil circuit of described balance cock between described B0 hydraulic fluid port and described B1 hydraulic fluid port, described check valve one and described flow regulating valve one form an oil circuit in parallel, one end of described oil circuit in parallel is communicated with the oil circuit between described A0 hydraulic fluid port and described A1 hydraulic fluid port, one end is communicated with the control port of described balance cock in addition, it is from described balance cock to A0-A1 oil circuit that described check valve one flows to, described load lifting cylinder has two, and another one load lifting cylinder rodless cavity is communicated with the A2 hydraulic fluid port of described device, and rod chamber is communicated with the B2 hydraulic fluid port of described device, and described A2 hydraulic fluid port is communicated with A0-A1 oil circuit, and described B2 hydraulic fluid port is communicated with B0-B1 oil circuit.
2. according to claim 1ly anti-pull out cylinder control setup, it is characterized in that, also comprise oil return inlet T, electromagnetic valve one and flow regulating valve two, described electromagnetic valve one is between described oil circuit in parallel and described balance cock, described electromagnetic valve one connects described oil return inlet T, and described flow regulating valve two is positioned on the oil circuit between described electromagnetic valve one and described oil return inlet T.
3. according to claim 1ly anti-pull out cylinder control setup, it is characterized in that, described hydraulic fluid port A0, hydraulic fluid port B0, hydraulic fluid port A1 and hydraulic fluid port B1 place are provided with pressure tap.
4. according to claim 2ly anti-pull out cylinder control setup, it is characterized in that, the oil circuit between described oil return inlet T and described hydraulic fluid port B1 is provided with by pass valve one.
5. according to claim 2ly anti-pull out cylinder control setup, it is characterized in that, electromagnetic valve two is connected with between described oil return inlet T and described A0-A1 oil circuit, electromagnetic valve three is connected with between described oil return inlet T and described B0-B1 oil circuit, described B0-B1 oil circuit is parallel with check valve two and flow regulating valve three respectively with described balance cock, and described check valve two flows to as the direction along B1-B0 oil circuit.
6. according to claim 5ly anti-pull out cylinder control setup, it is characterized in that, the oil circuit between described hydraulic fluid port B1 and described oil return inlet T is provided with by pass valve two.
7. anti-according to any one of claim 1 to 6 pulls out cylinder control setup, and it is characterized in that, above-mentioned valve is inserted valve, and is integrated in the valve block unifying.
8. a quarry tipper, is characterized in that, described quarry tipper comprises and according to claim 7ly anti-pulls out cylinder control setup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310088584.8A CN103112382B (en) | 2013-03-19 | 2013-03-19 | One is anti-pulls out cylinder control setup and quarry tipper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310088584.8A CN103112382B (en) | 2013-03-19 | 2013-03-19 | One is anti-pulls out cylinder control setup and quarry tipper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103112382A CN103112382A (en) | 2013-05-22 |
| CN103112382B true CN103112382B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310088584.8A Expired - Fee Related CN103112382B (en) | 2013-03-19 | 2013-03-19 | One is anti-pulls out cylinder control setup and quarry tipper |
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| Country | Link |
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| CN (1) | CN103112382B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740054A (en) * | 2016-12-21 | 2017-05-31 | 湘电重型装备有限公司 | A kind of delivered payload capability is the electric power wheel self-discharging vehicle of 136t |
| CN117698545B (en) * | 2024-02-06 | 2024-05-03 | 三一重型装备有限公司 | Lifting control system, method and device of mining vehicle and mining vehicle |
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|---|---|---|---|---|
| US3523490A (en) * | 1968-03-28 | 1970-08-11 | Caterpillar Tractor Co | Anti-cavitation mechanism for fluid driven systems |
| US3761123A (en) * | 1971-12-10 | 1973-09-25 | Applied Power Ind Inc | Flow control of tilt cab in free fall |
| US4367673A (en) * | 1981-01-09 | 1983-01-11 | Dresser Industries, Inc. | System and method for controlling the elevation of a boom hoist device |
| US5065664A (en) * | 1989-04-03 | 1991-11-19 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Control circuit for a cylinder allowing flow between an upper and a lower chamber |
| CN201090562Y (en) * | 2007-09-20 | 2008-07-23 | 韶关市起重机厂有限责任公司 | Electrohydraulic control system of tipper |
| CN202827257U (en) * | 2012-08-16 | 2013-03-27 | 秦皇岛天业通联重工股份有限公司 | Hydraulic lifting control system for mine self-discharging vehicle and mine self-discharging vehicle |
| CN203157803U (en) * | 2013-03-19 | 2013-08-28 | 三一矿机有限公司 | Cylinder-drawing preventing control device and mining dumper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006051879A (en) * | 2004-08-11 | 2006-02-23 | Kyokuto Kaihatsu Kogyo Co Ltd | Working vehicle |
-
2013
- 2013-03-19 CN CN201310088584.8A patent/CN103112382B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3523490A (en) * | 1968-03-28 | 1970-08-11 | Caterpillar Tractor Co | Anti-cavitation mechanism for fluid driven systems |
| US3761123A (en) * | 1971-12-10 | 1973-09-25 | Applied Power Ind Inc | Flow control of tilt cab in free fall |
| US4367673A (en) * | 1981-01-09 | 1983-01-11 | Dresser Industries, Inc. | System and method for controlling the elevation of a boom hoist device |
| US5065664A (en) * | 1989-04-03 | 1991-11-19 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Control circuit for a cylinder allowing flow between an upper and a lower chamber |
| CN201090562Y (en) * | 2007-09-20 | 2008-07-23 | 韶关市起重机厂有限责任公司 | Electrohydraulic control system of tipper |
| CN202827257U (en) * | 2012-08-16 | 2013-03-27 | 秦皇岛天业通联重工股份有限公司 | Hydraulic lifting control system for mine self-discharging vehicle and mine self-discharging vehicle |
| CN203157803U (en) * | 2013-03-19 | 2013-08-28 | 三一矿机有限公司 | Cylinder-drawing preventing control device and mining dumper |
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| CN103112382A (en) | 2013-05-22 |
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Effective date of registration: 20151105 Address after: 110000, No. 25, development road, Shenyang economic and Technological Development Zone, Liaoning Patentee after: Sany Heavy Equipment Co.,Ltd. Address before: 215300 18 building, No. 9999 Lake Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee before: Sany Mining Machinery Co., Ltd. |
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Granted publication date: 20150826 Termination date: 20160319 |
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