CN102141056A - Electromagnetic control valve for medium-size truck-mounted crane - Google Patents
Electromagnetic control valve for medium-size truck-mounted crane Download PDFInfo
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- CN102141056A CN102141056A CN2011101232375A CN201110123237A CN102141056A CN 102141056 A CN102141056 A CN 102141056A CN 2011101232375 A CN2011101232375 A CN 2011101232375A CN 201110123237 A CN201110123237 A CN 201110123237A CN 102141056 A CN102141056 A CN 102141056A
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- mounted crane
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Abstract
The invention discloses an electromagnetic control valve for a medium-size truck-mounted crane, which comprises a valve body, a safety valve, an electromagnetic overflow valve and a one-way throttling valve, wherein an oil inlet and a working oil port A are arranged on the first end surface of the valve body, and an oil return port and a working oil port B are arranged on the second end surface of the valve body; the safety valve, the electromagnetic overflow valve and the one-way throttling valve are sequentially arranged on the first end to the second end of the valve body; the oil inlet is communicated with the safety valve, the electromagnetic overflow valve and the one-way throttling valve through an oil inlet channel, and the oil return port is communicated with the safety valve, the electromagnetic overflow valve and the one-way throttling valve through an oil return channel; and an oil return chamber channel of the safety valve is connected with an oil return cavity channel of the electromagnetic overflow valve through an oil return connecting channel. The electromagnetic control valve has the advantages of avoiding the problem that a steering motor of the medium-size truck-mounted crane generates a phenomenon of crawl when the steering motor and an air conditioning motor of the medium-size truck-mounted crane synchronously work, and improving the safety of the medium-size truck-mounted crane, and the like.
Description
Technical field
The present invention relates to a kind of solenoid electric valve, the solenoid electric valve that is used for medium-sized truck-mounted crane that especially a kind of steering motor that can make medium-sized truck-mounted crane is synchronoused working with the air-conditioning motor.
Background technique
Truck-mounted crane claims truck with loading crane again, is a kind ofly to realize the equipment of lifting of goods, revolution, handling being assemblied on the cargo vehicle usually by hydraulic lifting and telescopic system.At present, domestic production has a kind of medium-sized truck-mounted crane that is equipped with the vehicle-mounted hydraulic air-conditioning.This truck-mounted crane oil circuit is provided with and is used to make truck-mounted crane steering motor that turns to and the air-conditioning motor that is used to drive the vehicle-mounted hydraulic air-conditioning.Steering motor and air-conditioning motor can work independently, and also can work simultaneously.When steering motor and air-conditioning motor are worked simultaneously, the oil circuit of two motors be series connection together.Gear pump, first control valve, steering motor, second control valve and air-conditioning motor are connected successively, are controlled the work of steering motor and air-conditioning motor by first control valve and second control valve by gear pump.But this control structure in actual use, and when two oil hydraulic motors were worked simultaneously, creeping phenomenon can appear in steering motor.If when steering motor is worked, open the air-conditioning motor suddenly, because the air-conditioning motor is serially connected in after the steering motor, and discharge capacity is less, by stopping, can produce very strong flowed fluctuation (forward very small flow suddenly to by very big flow, slowly be raised to normal state again) to whole oil circuit to the process of opening, thereby cause the steering motor of front creeping phenomenon to occur, influence the proper functioning of steering motor.
Summary of the invention
The present invention is the deficiency that exists in the above-mentioned prior art for avoiding, and a kind of solenoid electric valve that is used for medium-sized truck-mounted crane is provided, and creeping phenomenon occurs to avoid steering motor.
The present invention be the technical solution problem by the following technical solutions.
The solenoid electric valve that is used for medium-sized truck-mounted crane, its structural feature is, comprise valve body, safety valve, electromagnetic relief valve and one-way throttle valve, the first end end face of valve body is provided with filler opening and actuator port A, and second end face of described valve body is provided with return opening and actuator port B; First end to the second end from described valve body sets gradually safety valve, electromagnetic relief valve and one-way throttle valve; Described filler opening is connected with safety valve, electromagnetic relief valve and one-way throttle valve by oil inlet passage, and described return opening is connected with safety valve, electromagnetic relief valve and one-way throttle valve by drainback passage; The oil return cavity of safety valve is connected with the oil return cavity of electromagnetic relief valve by the oil return connecting passage.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Among the present invention, control switching between oil inlet passage and the drainback passage by electromagnetic relief valve, thus the stopping and rotating of control air-conditioning motor; By the oil return flow of high pressure oil in drainback passage in the one-way throttle valve control oil inlet passage, thereby realize the rotating speed control of air-conditioning motor, realize the switch and the rotating speed control of air-conditioning motor respectively by electromagnetic relief valve and one-way throttle valve, thereby produce flowed fluctuation in the oil circuit when having avoided the air-conditioning motor to open, the problem of creeping phenomenon, the Security that has improved medium-sized truck-mounted crane appear in steering motor in the time of can avoiding the steering motor of medium-sized truck-mounted crane to synchronous working with the air-conditioning motor.
Description of drawings
Fig. 1 is used for the plan view of the solenoid electric valve of medium-sized truck-mounted crane for the present invention.
Fig. 2 is used for the left view of the solenoid electric valve of medium-sized truck-mounted crane for the present invention.
Fig. 3 is used for the right elevation of the solenoid electric valve of medium-sized truck-mounted crane for the present invention.
Fig. 4 is used for the plan view of the solenoid electric valve of medium-sized truck-mounted crane for the present invention.
Label in accompanying drawing 1～accompanying drawing 4: 1 safety valve, 2 electromagnetic relief valves, 3 one-way throttle valves, 4 return openings, 5 actuator port A, 6 filler openings, 7 actuator port B, 8 valve bodies.
Below pass through embodiment, and the invention will be further described in conjunction with the accompanying drawings.
Embodiment
Referring to figure accompanying drawing 1～accompanying drawing 4, the solenoid electric valve that is used for medium-sized truck-mounted crane, comprise valve body 8, safety valve 1, electromagnetic relief valve 2 and one-way throttle valve 3, the first end end face of valve body 8 is provided with filler opening 6 and actuator port A 5, and second end face of described valve body 8 is provided with return opening 4 and actuator port B 7; First end to the second end from described valve body 8 sets gradually safety valve 1, electromagnetic relief valve 2 and one-way throttle valve 3; Described filler opening 6 is connected with safety valve 1, electromagnetic relief valve 2 and one-way throttle valve 3 by oil inlet passage, and described return opening 4 is connected with safety valve 1, electromagnetic relief valve 2 and one-way throttle valve 3 by drainback passage; The oil return cavity of safety valve 1 is connected with the oil return cavity of electromagnetic relief valve 2 by the oil return connecting passage.Realize the switch and the rotating speed control of air-conditioning motor respectively by electromagnetic relief valve and one-way throttle valve, thereby produce flowed fluctuation in the oil circuit when having avoided the air-conditioning motor to open, the problem of creeping phenomenon, the Security that has improved medium-sized truck-mounted crane appear in steering motor in the time of can avoiding the steering motor of medium-sized truck-mounted crane to synchronous working with the air-conditioning motor.
On valve body 8, during the pressure overload, the high pressure oil in the oil inlet passage is realized the function of overload off-load by safety valve 1 off-load.
Establish in the electromagnetic relief valve 2 and often open bi-bit bi-pass electromagnetic cartridge valve and logic one-way valve.During bi-bit bi-pass electromagnetic cartridge valve no electric circuit, the logic one-way valve opens, oil inlet passage and drainback passage are communicated with, and the air-conditioning motor quits work.During the energising of bi-bit bi-pass electromagnetic cartridge valve, the logic closed check valve is not communicated with between oil inlet passage and the drainback passage, and pressure oil drives the air-conditioning motor, the rotation of air-conditioning motor.
Establish throttling adjustable lever and one-way valve in the one-way throttle valve 3.By one-way valve oil inlet passage and drainback passage are oppositely separated, guarantee to flow in the drainback passage after the high pressure oil throttling in the oil inlet passage, and the low pressure oil in the drainback passage can not flow within the oil inlet passage, realizes that fluid is from the one-way flow of oil inlet passage to drainback passage.Regulate by the throttling adjustable lever simultaneously, the high pressure oil in the control oil inlet passage is back to the oil return flow in the drainback passage, realizes the control to the air-conditioning motor rotary speed.
Claims (1)
1. the solenoid electric valve that is used for medium-sized truck-mounted crane, it is characterized in that, comprise valve body (8), safety valve (1), electromagnetic relief valve (2) and one-way throttle valve (3), the first end end face of valve body (8) is provided with filler opening (6) and actuator port A (5), and second end face of described valve body (8) is provided with return opening (4) and actuator port B (7); From first end to the second end of described valve body (8), set gradually safety valve (1), electromagnetic relief valve (2) and one-way throttle valve (3); Described filler opening (6) is connected with safety valve (1), electromagnetic relief valve (2) and one-way throttle valve (3) by oil inlet passage, and described return opening (4) is connected with safety valve (1), electromagnetic relief valve (2) and one-way throttle valve (3) by drainback passage; The oil return cavity of safety valve (1) is connected by the oil return cavity of oil return connecting passage with electromagnetic relief valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101232375A CN102141056A (en) | 2011-05-13 | 2011-05-13 | Electromagnetic control valve for medium-size truck-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101232375A CN102141056A (en) | 2011-05-13 | 2011-05-13 | Electromagnetic control valve for medium-size truck-mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102141056A true CN102141056A (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101232375A Pending CN102141056A (en) | 2011-05-13 | 2011-05-13 | Electromagnetic control valve for medium-size truck-mounted crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN102141056A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979774A (en) * | 2012-05-24 | 2013-03-20 | 山东弘宇机械有限公司 | Control valve block special for tractor hydraulic suspension |
| CN112498047A (en) * | 2019-09-16 | 2021-03-16 | 河北雷萨重型工程机械有限责任公司 | Crane air conditioner control system and crane |
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| CN2806746Y (en) * | 2005-03-29 | 2006-08-16 | 徐州东明机械制造有限公司 | Hydraulic control system for drilling rod touching-ground inductive rope-tangling prevention mechanism of rotary drilling machine |
| CN201144910Y (en) * | 2007-12-04 | 2008-11-05 | 江苏创导空调有限公司 | Integrated block apparatus of keeping rotary speed constant for engineering vehicle hydraulic power air conditioner |
| CN201269231Y (en) * | 2008-07-09 | 2009-07-08 | 佛山市南海力丰机床有限公司 | Hydraulic system recirculation loop of bending machine |
| CN101543969A (en) * | 2009-05-08 | 2009-09-30 | 成都工具研究所 | Hydraulic cylinder speed control system on surface grinder workbench |
| CN201372983Y (en) * | 2009-01-20 | 2009-12-30 | 宁波雄信塑料机械有限公司 | Hydraulic control system of vulcanizing machine using sequential action |
| CN201433063Y (en) * | 2009-04-03 | 2010-03-31 | 上海三一科技有限公司 | Caterpillar crane rotatory closed system |
| CN201526546U (en) * | 2009-11-17 | 2010-07-14 | 华东交通大学 | Hydraulic control system of underground anti-explosion hoister adopting multi-pump combination technique |
| CN101785386A (en) * | 2010-01-26 | 2010-07-28 | 中国农业大学 | Adjusting device used for sowing depth automatic control system |
| US20100191381A1 (en) * | 2007-03-29 | 2010-07-29 | Roland Haussmann | Air-Conditioning System, In Particular For A Motor Vehicle |
| CN202017673U (en) * | 2011-05-13 | 2011-10-26 | 合肥长源液压股份有限公司 | Electromagnetic control valve used for medium-sized truck-mounted crane |
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2011
- 2011-05-13 CN CN2011101232375A patent/CN102141056A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2806746Y (en) * | 2005-03-29 | 2006-08-16 | 徐州东明机械制造有限公司 | Hydraulic control system for drilling rod touching-ground inductive rope-tangling prevention mechanism of rotary drilling machine |
| US20100191381A1 (en) * | 2007-03-29 | 2010-07-29 | Roland Haussmann | Air-Conditioning System, In Particular For A Motor Vehicle |
| CN201144910Y (en) * | 2007-12-04 | 2008-11-05 | 江苏创导空调有限公司 | Integrated block apparatus of keeping rotary speed constant for engineering vehicle hydraulic power air conditioner |
| CN201269231Y (en) * | 2008-07-09 | 2009-07-08 | 佛山市南海力丰机床有限公司 | Hydraulic system recirculation loop of bending machine |
| CN201372983Y (en) * | 2009-01-20 | 2009-12-30 | 宁波雄信塑料机械有限公司 | Hydraulic control system of vulcanizing machine using sequential action |
| CN201433063Y (en) * | 2009-04-03 | 2010-03-31 | 上海三一科技有限公司 | Caterpillar crane rotatory closed system |
| CN101543969A (en) * | 2009-05-08 | 2009-09-30 | 成都工具研究所 | Hydraulic cylinder speed control system on surface grinder workbench |
| CN201526546U (en) * | 2009-11-17 | 2010-07-14 | 华东交通大学 | Hydraulic control system of underground anti-explosion hoister adopting multi-pump combination technique |
| CN101785386A (en) * | 2010-01-26 | 2010-07-28 | 中国农业大学 | Adjusting device used for sowing depth automatic control system |
| CN202017673U (en) * | 2011-05-13 | 2011-10-26 | 合肥长源液压股份有限公司 | Electromagnetic control valve used for medium-sized truck-mounted crane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979774A (en) * | 2012-05-24 | 2013-03-20 | 山东弘宇机械有限公司 | Control valve block special for tractor hydraulic suspension |
| CN102979774B (en) * | 2012-05-24 | 2015-05-06 | 山东弘宇农机股份有限公司 | Control valve block special for tractor hydraulic suspension |
| CN112498047A (en) * | 2019-09-16 | 2021-03-16 | 河北雷萨重型工程机械有限责任公司 | Crane air conditioner control system and crane |
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Application publication date: 20110803 |