CN202108803U - Multi-way reversing valve for lorry-mounted crane - Google Patents

Multi-way reversing valve for lorry-mounted crane Download PDF

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Publication number
CN202108803U
CN202108803U CN2011202126561U CN201120212656U CN202108803U CN 202108803 U CN202108803 U CN 202108803U CN 2011202126561 U CN2011202126561 U CN 2011202126561U CN 201120212656 U CN201120212656 U CN 201120212656U CN 202108803 U CN202108803 U CN 202108803U
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CN
China
Prior art keywords
valve
reversing valve
lorry
mounted crane
directional control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011202126561U
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Chinese (zh)
Inventor
程磊
刘�东
赵龙辉
赵娇阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou XCMG Truck Mounted Crane Co Ltd
Original Assignee
Xuzhou XCMG Truck Mounted Crane Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xuzhou XCMG Truck Mounted Crane Co Ltd filed Critical Xuzhou XCMG Truck Mounted Crane Co Ltd
Priority to CN2011202126561U priority Critical patent/CN202108803U/en
Application granted granted Critical
Publication of CN202108803U publication Critical patent/CN202108803U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A multi-way reversing valve for a lorry-mounted crane belongs to multi-way valves for engineering machinery. A first secondary pressure limiting valve is connected with a load port A1 and a load port B1 of a rotary reversing valve, and a second secondary pressure limiting valve is connected with a load port A2 and a load port B2 of a winding double-pump confluence reversing valve. A first main overflow valve is connected with an oil pump mouth of a multi-way reversing valve P1 for the lorry-mounted crane, and a second main overflow valve is connected with an oil pump mouth of a multi-way reversing valve P2 for the lorry-mounted crane. A first load holding valve, a second load holding valve and a third load holding valve are connected with oil inlets of the rotary reversing valve, an extension reversing valve and a variable amplitude reversing valve respectively, and a one-way valve is connected with an oil inlet of the winding double-pump confluence reversing valve. The rotary reversing valve is in serial connection with the winding double-pump confluence reversing valve, the extension reversing valve is in serial connection with the winding double-pump confluence reversing valve after being connected with the variable amplitude reversing valve in parallel. The multi-way reversing valve for the lorry-mounted crane has the advantages that a winding curtain can achieve fast and slow conversion according to different working conditions and different characteristics of each movement mechanism of the lorry-mounted crane, thereby improving working efficiency and giving consideration to micro moving performance simultaneously. Rotation can be in linkage with extension, the rotation can be in linkage with variable amplitude, and winding can be in linkage with any movement mechanism.

Description

Lorry-mounted crane is used multiple directional control valve
Technical field
The utility model relates to a kind of engineering machinery and uses multi-way valve, and particularly a kind of lorry-mounted crane is used multiple directional control valve.
Background technique
Multiple directional control valve is the combination brake switch and proporting that is the main body with plural selector valve, according to the requirement of different hydraulic systems, also can relief valve, one-way valve etc. also be combined in the valve, is mainly used on the various engineering machinery, carries out the centralized control of a plurality of executive components.
General lorry-mounted crane is used multiple directional control valve; Each couplet is three bit manipulations, and has only a filler opening, can only use single metering pump fuel feeding; This causes: 1, rotating at a slow speed, function that stable operation requires rapidly and efficiently to be moved with flexible and luffing produces contradiction, can not realize simultaneously; 2, hoist motor can only be operated under the speed, can not take into account rapidly and efficiently the requirement with the fine motion location simultaneously; 3, car load can only move by simply connected, and car load efficient is too low.If use the variable displacement pump fuel feeding, it is too high that car load increases cost, has a strong impact on the cost performance of lorry-mounted crane.
The model utility content
The purpose of the utility model is to provide a kind of lorry-mounted crane to use multiple directional control valve, solves existing lorry-mounted crane and can not use the double pump fuel feeding, can not implementation part mechanism link, and can not realize the problem of elevator double speed action.
The purpose of the utility model is achieved in that this lorry-mounted crane includes the first main relief valve, the first load maintaining valve, slewing directional control valve, first level pressure-limit valve, second subprime pressure-limit valve, one-way valve, elevator double pump interflow selector valve, flexible selector valve, the second load maintaining valve, luffing selector valve, the 3rd load maintaining valve, the second main relief valve with multiple directional control valve;
First time the level pressure-limit valve is connected with the B1 mouth with the load port A1 mouth of slewing directional control valve; The second subprime pressure-limit valve is connected with the B2 mouth with the load port A2 mouth of elevator double pump interflow selector valve; The first main relief valve is connected with multiple directional control valve P1 oil pump mouth with this lorry-mounted crane, and the second main relief valve is connected with multiple directional control valve P2 oil pump mouth with this lorry-mounted crane; The first load maintaining valve, the second load maintaining valve, the 3rd load maintaining valve are connected with the filler opening of slewing directional control valve, flexible selector valve, luffing selector valve respectively, and one-way valve is connected with the filler opening of elevator double pump interflow selector valve; Slewing directional control valve and elevator double pump interflow selector valve are connected in series with elevator double pump interflow selector valve after flexible selector valve 8 is connected in parallel with the luffing selector valve for being connected in series.
Beneficial effect: owing to adopted above-mentioned principle scheme, it is that slewing directional control valve 3 provides the pressure oil circuit that this lorry-mounted crane can adopt float amount constant displacement pump with multiple directional control valve P1 oil pump mouth, and realization is turned round at a slow speed, stable operation; This lorry-mounted crane can adopt big discharge capacity constant displacement pump for stretch reversal valve and luffing reversal valve the pressure oil circuit to be provided with multiple directional control valve P2 oil pump mouth, and realization is flexible to be moved with luffing fast; Elevator double pump interflow reversal valve can be realized double speed control; In the time of at a slow speed; The multiple directional control valve P1 oil pump mouth off-load of this lorry-mounted crane; P2 oil pump mouth provides pressure oil for elevator double pump interflow reversal valve; In the time of fast; This lorry-mounted crane is elevator double pump interflow reversal valve fuel feeding jointly with multiple directional control valve P1 oil pump mouth and P2 oil pump effected interflow; Revolution and flexible can the interlock, revolution and luffing can link, and elevator can link with arbitrary motion mechanism.
Advantage: to each motion characteristic difference of lorry-mounted crane, this programme can be realized turning round at a slow speed, stable operation, the flexible purpose of moving fast with luffing; Elevator joins can be different according to operating mode, realize fast and conversion at a slow speed, both improved working efficiency, taken into account fretting performance simultaneously again; Revolution and flexible can the interlock, revolution and luffing can link, and elevator can link with arbitrary motion mechanism; Moderate cost has reduced the cost burden of complete machine.
Description of drawings
Fig. 1 is the structural drawing of the utility model.
Among the figure, 1, the first main relief valve; 2, the first load maintaining valve; 3, slewing directional control valve; 4, first level pressure-limit valve; 5, second subprime pressure-limit valve; 6, one-way valve; 7, elevator double pump interflow selector valve; 8, flexible selector valve; 9, the second load maintaining valve; 10, luffing selector valve; 11, the 3rd load maintaining valve; 12, the second main relief valve.
Embodiment
Embodiment 1: this lorry-mounted crane includes with multiple directional control valve: this lorry-mounted crane includes the first main relief valve 1, the first load maintaining valve 2, slewing directional control valve 3, second subprime pressure-limit valve 4, second subprime pressure-limit valve 5, one-way valve 6, elevator double pump interflow selector valve 7, flexible selector valve 8, the second load maintaining valve 9, luffing selector valve 10, the 3rd load maintaining valve 11 and the second main relief valve 12 with multiple directional control valve; First time level pressure-limit valve 4 is connected with the B1 mouth with the load port A1 mouth of slewing directional control valve 3; Second subprime pressure-limit valve 5 is connected with the B2 mouth with the load port A2 mouth of elevator double pump interflow selector valve 7; The first main relief valve 1 is connected with multiple directional control valve P1 oil pump mouth with this lorry-mounted crane, and the second main relief valve 12 is connected with multiple directional control valve P2 oil pump mouth with this lorry-mounted crane; The first load maintaining valve 2, the second load maintaining valve 9, the 3rd load maintaining valve 11 are connected with the filler opening of slewing directional control valve 3, flexible selector valve 8, luffing selector valve 10 respectively, and one-way valve 6 is connected with the filler opening that the elevator double pump collaborates selector valve 7; Slewing directional control valve 3 collaborates selector valve 7 for being connected in series with the elevator double pump, collaborates selector valve 7 with the elevator double pump after flexible selector valve 8 is connected in parallel with luffing selector valve 10 and is connected in series.

Claims (1)

1. this lorry-mounted crane includes the first main relief valve, the first load maintaining valve, slewing directional control valve, first level pressure-limit valve, second subprime pressure-limit valve, one-way valve, elevator double pump interflow selector valve, flexible selector valve, the second load maintaining valve, luffing selector valve, the 3rd load maintaining valve, the second main relief valve with multiple directional control valve;
First time the level pressure-limit valve is connected with the B1 mouth with the load port A1 mouth of slewing directional control valve; The second subprime pressure-limit valve is connected with the B2 mouth with the load port A2 mouth of elevator double pump interflow selector valve; The first main relief valve is connected with multiple directional control valve P1 oil pump mouth with this lorry-mounted crane, and the second main relief valve is connected with multiple directional control valve P2 oil pump mouth with this lorry-mounted crane; The first load maintaining valve, the second load maintaining valve, the 3rd load maintaining valve are connected with the filler opening of slewing directional control valve, flexible selector valve, luffing selector valve respectively, and one-way valve is connected with the filler opening of elevator double pump interflow selector valve; Slewing directional control valve and elevator double pump interflow selector valve are connected in series with elevator double pump interflow selector valve after flexible selector valve (8) and luffing selector valve are connected in parallel for being connected in series.
CN2011202126561U 2011-06-22 2011-06-22 Multi-way reversing valve for lorry-mounted crane Expired - Lifetime CN202108803U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202126561U CN202108803U (en) 2011-06-22 2011-06-22 Multi-way reversing valve for lorry-mounted crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202126561U CN202108803U (en) 2011-06-22 2011-06-22 Multi-way reversing valve for lorry-mounted crane

Publications (1)

Publication Number Publication Date
CN202108803U true CN202108803U (en) 2012-01-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202126561U Expired - Lifetime CN202108803U (en) 2011-06-22 2011-06-22 Multi-way reversing valve for lorry-mounted crane

Country Status (1)

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CN (1) CN202108803U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278331A (en) * 2011-06-22 2011-12-14 徐州徐工随车起重机有限公司 Multi-way directional valve for lorry-mounted crane and control method thereof
CN103899588A (en) * 2014-01-17 2014-07-02 徐州徐工随车起重机有限公司 Lorry-mounted crane multi-way reversing device and straight arm lorry-mounted crane
CN104912857A (en) * 2014-03-11 2015-09-16 江苏科迈液压控制系统有限公司 Multi-way valve
CN105443481A (en) * 2014-12-09 2016-03-30 徐州重型机械有限公司 Series-parallel crane multitandem valve and hydraulic system and crane
CN106744329A (en) * 2016-12-22 2017-05-31 北汽福田汽车股份有限公司 A kind of crane and its telescoping mechanism and secondary hoisting mechanism coordinated control system
CN107504000A (en) * 2017-10-12 2017-12-22 徐州徐工随车起重机有限公司 A kind of lorry-mounted crane multi-way reversing device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278331A (en) * 2011-06-22 2011-12-14 徐州徐工随车起重机有限公司 Multi-way directional valve for lorry-mounted crane and control method thereof
CN103899588A (en) * 2014-01-17 2014-07-02 徐州徐工随车起重机有限公司 Lorry-mounted crane multi-way reversing device and straight arm lorry-mounted crane
CN104912857A (en) * 2014-03-11 2015-09-16 江苏科迈液压控制系统有限公司 Multi-way valve
CN105443481A (en) * 2014-12-09 2016-03-30 徐州重型机械有限公司 Series-parallel crane multitandem valve and hydraulic system and crane
CN105443481B (en) * 2014-12-09 2018-01-12 徐州重型机械有限公司 Series parallel type crane banked direction control valves, hydraulic system and crane
CN106744329A (en) * 2016-12-22 2017-05-31 北汽福田汽车股份有限公司 A kind of crane and its telescoping mechanism and secondary hoisting mechanism coordinated control system
CN106744329B (en) * 2016-12-22 2018-08-07 北汽福田汽车股份有限公司 A kind of crane and its telescoping mechanism and secondary hoisting mechanism coordinated control system
CN107504000A (en) * 2017-10-12 2017-12-22 徐州徐工随车起重机有限公司 A kind of lorry-mounted crane multi-way reversing device
CN107504000B (en) * 2017-10-12 2024-01-02 徐州徐工随车起重机有限公司 Multi-way reversing device of lorry-mounted crane

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CX01 Expiry of patent term

Granted publication date: 20120111

CX01 Expiry of patent term