CN203394737U - Concrete delivery pump integrated valve block with high-and-low voltage switching function - Google Patents

Concrete delivery pump integrated valve block with high-and-low voltage switching function Download PDF

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Publication number
CN203394737U
CN203394737U CN201320258287.9U CN201320258287U CN203394737U CN 203394737 U CN203394737 U CN 203394737U CN 201320258287 U CN201320258287 U CN 201320258287U CN 203394737 U CN203394737 U CN 203394737U
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Prior art keywords
valve
oil
hydraulic
low pressure
valve block
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CN201320258287.9U
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Chinese (zh)
Inventor
黄士兵
孔其林
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Feny Co Ltd
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Feny Co Ltd
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Abstract

The utility model discloses a concrete delivery pump integrated valve block with a high-and-low voltage switching function. Two-way cartridge valves, a high-and-low voltage steering valve, a plate type shuttle valve, a pumping system of a concrete delivery pump, and a hydraulic element of a swing cylinder steering system are all fixedly arranged on a square valve block. A process through hole is arranged in the valve block as a hydraulic oil channel to be communicated with the hydraulic element and is connected with a main oil cylinder and an oil pump via an opening of the surface of the valve block and an oil pipe. In the concrete delivery pump, the two-way cartridge valves used for high pressure delivery and low pressure delivery, a high-and-low control valve and a main valve block of a hydraulic system are integrated; the concentration rate of the hydraulic element is enhanced; layout of a hydraulic pipeline is simplified and maintenance of products is more convenient.

Description

A kind of concrete pump integrated valve block switching with high low pressure
Technical field
The utility model relates to concrete conveying equipment, further refers to the integrated valve block of the concrete pump switching with high low pressure.
Background technique
The concrete conveying equipment switching with high low pressure, conventionally be all high/low pressure cut-over valve piece to be installed on to the rodless cavity oil inlet end of two master cylinders, between main valve piece and high/low pressure cut-over valve piece, by hydraulic pipe line, connect again, make like this device interior hydraulic system element structure disperse, arrange that inconvenience, pipeline increase, hydraulic oil leak source increases, increased the maintenance difficulty of system.
Model utility content
The technical problems to be solved in the utility model is, the deficiency existing for existing background technique, design a kind of concrete pump integrated valve block switching with high low pressure, by high low pressure logic cartridge valve and the integrated setting of main valve piece, to guarantee reliability and the concentration degree of hydraulic element, make whole hydraulic system arrange volume compact.
The utility model adopts following technological scheme to realize: a kind of concrete pump integrated valve block switching with high low pressure, main reversing valve in the pumping system of described concrete pump and the oil circuit between master cylinder are provided with six two-way plug-in valves, described two-way plug-in valve is divided into two groups, wherein one group is arranged on the high-pressure oil passage of master cylinder by rodless cavity oil-feed, another group is arranged on the low pressure oil way of master cylinder by rod chamber oil-feed, between main reversing valve and main pump, drawing oil circuit control is connected described two-way plug-in valve and controls its opening and closing, on described oil circuit control, be provided with high low pressure selector valve, described two-way plug-in valve, the pumping system of high low pressure selector valve and concrete pump, the hydraulic element of tilt cylinder reversing mechanism are all installed on a square valve piece, in valve piece inside, offer technique through hole and be communicated with above-mentioned hydraulic element as hydraulic circuit, and be connected master cylinder and oil pump with oil pipe by the opening on valve piece surface.
On described valve piece, be installed with board-like shuttle valve, be connected respectively in two-way plug-in valve, pumping system the oil circuit control of tilt cylinder selector valve in main reversing valve and tilt cylinder reversing mechanism.
The utility model is undertaken integrated by the main valve piece of the two-way plug-in valve for high-pressure delivery and low-pressure delivery in concrete pump and high low pressure control valve and hydraulic system, improved the concentration degree of hydraulic element, simplify the layout of hydraulic pipe line, made product repairing more convenient.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the concrete pump hydraulic schematic diagram switching with high low pressure that the utility model relates to.
Fig. 2 is the valve piece plan view that the utility model relates to.
Fig. 3 is the rear view of Fig. 2.
Fig. 4 is the left view of Fig. 2.
Fig. 5 is the right elevation of Fig. 2.
Fig. 6 is the plan view of Fig. 2.
Number in the figure: 1-valve piece, 2-main reversing valve, 3-tilt cylinder selector valve, 4-high low pressure selector valve, 5-solenoid directional control valve, 6-the first cartridge valve, 7-the second cartridge valve, 8-the 3rd cartridge valve, 9-the 4th cartridge valve, 10-the 5th cartridge valve, 11-the 6th cartridge valve, the main relief valve of 12-, 13-unloading valve, 14-plate-type non-return valve, 15-throttle valve, the board-like shuttle valve of 16-, 17-stacked unidirectional valve, 18-the first master cylinder, 19-the second master cylinder, 20-oscillating oil cylinder.
Embodiment
Embodiment
Referring to Fig. 2 to Fig. 6, on valve body 1, by screw, be installed with main reversing valve 2, tilt cylinder selector valve 3, high low pressure selector valve 4, solenoid directional control valve 5, the first cartridge valve 6, the second cartridge valve 7, the 3rd cartridge valve 8, the 4th cartridge valve 9, the 5th cartridge valve 10, the 6th cartridge valve 11, main relief valve 12, unloading valve 13, plate-type non-return valve 14, throttle valve 15, board-like shuttle valve 16, stacked unidirectional valve 17.
In conjunction with referring to Fig. 1, in pumping system, the oil inlet P of main pump is communicated with the first hydraulic fluid port of main reversing valve 2 and the filler opening of main relief valve 12, and the 4th hydraulic fluid port of main reversing valve 2 and the return opening of main relief valve 12 are communicated with main oil return inlet T.
The second hydraulic fluid port of main reversing valve 2 is communicated with the first hydraulic fluid port of the 5th cartridge valve 10, the 6th cartridge valve 11, and the 3rd hydraulic fluid port of main reversing valve 2 is communicated with the first hydraulic fluid port of the 3rd cartridge valve 8, the 4th cartridge valve 9.
The second hydraulic fluid port of the 5th cartridge valve 10 is communicated with the first hydraulic fluid port of the rodless cavity of the first master cylinder 18 and the second cartridge valve 7.
The second hydraulic fluid port of the 6th cartridge valve 11 is communicated with the first hydraulic fluid port of the rod chamber of the first master cylinder 18 and the first cartridge valve 6.
The second hydraulic fluid port of the 3rd cartridge valve 8 is communicated with the second hydraulic fluid port of the rod chamber of the second master cylinder 19 and the first cartridge valve 6.
The second hydraulic fluid port of the 4th cartridge valve 9 is communicated with the second hydraulic fluid port of the rodless cavity of the second master cylinder 19 and the second cartridge valve 7.
In tilt cylinder reversing mechanism, oil inlet P ' with the first hydraulic fluid port connection of unloading valve 13 and plate-type non-return valve 14, the second hydraulic fluid port of plate-type non-return valve 14 is communicated with the first hydraulic fluid port of the first hydraulic fluid port of tilt cylinder selector valve 3 and throttle valve 15.The second hydraulic fluid port of the 4th hydraulic fluid port of tilt cylinder selector valve 3 and throttle valve 15, unloading valve 13 passes through oil return inlet T ' connection fuel tank.
The second hydraulic fluid port of tilt cylinder selector valve 3 and the 3rd hydraulic fluid port are communicated with two filler openings of tilt cylinder 20 respectively.
Main reversing valve 2, tilt cylinder selector valve 3 are electro-hydraulic reversing valve, and high low pressure selector valve 4 and solenoid directional control valve 5 are two-position four-way solenoid directional control valve.
In the oil circuit control of six two-way plug-in valves, main reversing valve 2 and tilt cylinder selector valve 3, oil inlet P is communicated with the first hydraulic fluid port of board-like shuttle valve 16, the 3rd hydraulic fluid port of board-like shuttle valve 16 is communicated with the first hydraulic fluid port of high low pressure selector valve 4, and the 4th hydraulic fluid port of high low pressure selector valve 4 is communicated with fuel tank.
The second hydraulic fluid port of high low pressure selector valve 4 is communicated with the control port of the second cartridge valve 7, the 3rd cartridge valve 8, the 6th cartridge valve 11.
The 3rd hydraulic fluid port of high low pressure selector valve 4 is communicated with the control port of the first cartridge valve 6, the 4th cartridge valve 9, the 5th cartridge valve 10.
Oil inlet P ' with pilot valve first hydraulic fluid port of main reversing valve 2, board-like shuttle valve 16 second hydraulic fluid ports, solenoid directional control valve 5 first hydraulic fluid ports, pilot valve first hydraulic fluid port of tilt cylinder selector valve 3, the control port of unloading valve 13, be interconnected.
The 4th hydraulic fluid port of the 4th hydraulic fluid port of the 4th hydraulic fluid port of the pilot valve of main reversing valve 2, the pilot valve of tilt cylinder selector valve 3, the 4th hydraulic fluid port of high low pressure selector valve, solenoid directional control valve 5 is communicated with fuel tank.
(note: above-mentioned the first hydraulic fluid port fingering hydraulic fluid port, the second hydraulic fluid port and the 3rd hydraulic fluid port refer to actuator port, the 4th hydraulic fluid port refers to return opening).
Specifically referring to Fig. 1, the working procedure of hydraulic system is as follows: open main pump, the DT1 of main relief valve 12 obtains the electric pressure of building, the electromagnetic priority valve DT2 of main reversing valve 2 obtains electric, main valve is in left position, high low pressure selector valve 4 is in right position, control oil by the second cartridge valve 7, the 3rd cartridge valve 8, the 6th cartridge valve 11 is closed, the rodless cavity promotion piston rod that pressure oil enters the first master cylinder 18 by the 5th cartridge valve 10 advances, the rod chamber promotion plug cock bar that the oil of its rod chamber enters the second master cylinder 19 by 2 first cartridge valves 6 retreats, the oil of its rodless cavity is by the 4th cartridge valve 9, enter the left end oil sump tank of main reversing valve 2, meanwhile, tilt cylinder selector valve 3 pilot solenoid valves obtain electric, tilt cylinder 20 actions, equipment enter pumping state, the rodless cavity oil-feed of a little kind situation owner oil cylinders, equipment working state is high-pressure small-displacement.
When the electromagnetic priority valve DT3 of main reversing valve 2 obtains electric, main valve is in right position, high low pressure selector valve 4 is in left position, control oil by the 4th cartridge valve 9, the 5th cartridge valve 10, 2 first cartridge valves 6 are closed, pressure oil enters master cylinder II rod chamber promotion piston rod by the 3rd cartridge valve 8 and retreats, the rodless cavity that the oil of rodless cavity enters the first master cylinder 18 by the second cartridge valve 7 promotes to move back before plug cock bar, the oil of its rod chamber enters the right-hand member oil sump tank of main reversing valve 2 by the 6th cartridge valve 11, meanwhile, the pilot solenoid valve of tilt cylinder selector valve 3 obtains electric, tilt cylinder 20 actions, equipment enter pumping state, the rod chamber oil-feed of a little kind situation owner oil cylinders, equipment working state is the large discharge capacity of low pressure.
By controlling solenoid directional control valve 5 control apparatuss, automatically move back piston, and stack arranges 17 pairs of oil circuits of a stacked unidirectional valve and carries out locking.

Claims (2)

1. the concrete pump integrated valve block switching with high low pressure, main reversing valve in the pumping system of described concrete pump and the oil circuit between master cylinder are provided with six two-way plug-in valves, described two-way plug-in valve is divided into two groups, wherein one group is arranged on the high-pressure oil passage of master cylinder by rodless cavity oil-feed, another group is arranged on the low pressure oil way of master cylinder by rod chamber oil-feed, between main reversing valve and main pump, drawing oil circuit control is connected described two-way plug-in valve and controls its opening and closing, on described oil circuit control, be provided with high low pressure selector valve, it is characterized in that: described two-way plug-in valve, the pumping system of high low pressure selector valve and concrete pump, the hydraulic element of tilt cylinder reversing mechanism are all installed on a square valve piece, in valve piece inside, offer technique through hole and be communicated with above-mentioned hydraulic element as hydraulic circuit, and be connected master cylinder and oil pump with oil pipe by the opening on valve piece surface.
2. a kind of concrete pump integrated valve block switching with high low pressure according to claim 1, it is characterized in that: on described valve piece, be installed with board-like shuttle valve, be connected respectively in two-way plug-in valve, pumping system the oil circuit control of tilt cylinder selector valve in main reversing valve and tilt cylinder reversing mechanism.
CN201320258287.9U 2013-05-13 2013-05-13 Concrete delivery pump integrated valve block with high-and-low voltage switching function Active CN203394737U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320258287.9U CN203394737U (en) 2013-05-13 2013-05-13 Concrete delivery pump integrated valve block with high-and-low voltage switching function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320258287.9U CN203394737U (en) 2013-05-13 2013-05-13 Concrete delivery pump integrated valve block with high-and-low voltage switching function

Publications (1)

Publication Number Publication Date
CN203394737U true CN203394737U (en) 2014-01-15

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Family Applications (1)

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Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088839A (en) * 2014-05-26 2014-10-08 飞翼股份有限公司 Differential pressure transmitting device, closed type hydraulic system and mining clearing machine
CN104728203A (en) * 2015-03-26 2015-06-24 北京煤科天玛自动化科技有限公司 Electro-hydraulic control reversing valve with internal pressure relief function
CN106801691A (en) * 2017-04-01 2017-06-06 长沙拓沃工程机械设备有限公司 Concrete pump and its hydraulic system, control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088839A (en) * 2014-05-26 2014-10-08 飞翼股份有限公司 Differential pressure transmitting device, closed type hydraulic system and mining clearing machine
CN104088839B (en) * 2014-05-26 2019-07-02 飞翼股份有限公司 A kind of pressure difference transmitting device, closed type hydraulic system and mining conveyer for emptying warehouse
CN104728203A (en) * 2015-03-26 2015-06-24 北京煤科天玛自动化科技有限公司 Electro-hydraulic control reversing valve with internal pressure relief function
CN106801691A (en) * 2017-04-01 2017-06-06 长沙拓沃工程机械设备有限公司 Concrete pump and its hydraulic system, control method
CN106801691B (en) * 2017-04-01 2018-04-17 湖南拓沃重工科技有限公司 Concrete pump and its hydraulic system, control method

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