CN202988660U - Variation amplitude and rotary hydraulic circuit for operation arm of high-altitude operation car - Google Patents
Variation amplitude and rotary hydraulic circuit for operation arm of high-altitude operation car Download PDFInfo
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- CN202988660U CN202988660U CN 201220576506 CN201220576506U CN202988660U CN 202988660 U CN202988660 U CN 202988660U CN 201220576506 CN201220576506 CN 201220576506 CN 201220576506 U CN201220576506 U CN 201220576506U CN 202988660 U CN202988660 U CN 202988660U
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Abstract
The utility model discloses a variation amplitude and rotary hydraulic circuit for an operation arm of a high-altitude operation car. The hydraulic circuit comprises a variation amplitude hydraulic cylinder and a hydraulic motor, a rodless cavity of the variation amplitude hydraulic cylinder is communicated with a port L of a first electromagnetic directional valve, a rod cavity of the variation amplitude hydraulic cylinder is communicated with a port D of a second electromagnetic directional valve, both a port N of the first electromagnetic directional valve and a port F of the second electromagnetic directional valve are communicated with an oil return pipe, a port M of the first electromagnetic directional valve and a port E of the second electromagnetic directional valve are communicated with an oil inlet pipe, a port A and a port B of the hydraulic motor are communicated with a port S and a port R of a third electromagnetic directional valve respectively, a port Q of the third electromagnetic directional valve is communicated with an oil outlet pipe, a port P of the third electromagnetic directional valve is communicated with the oil inlet pipe, and a brake is communicated with a shuttle valve through a control oil circuit. The hydraulic circuit has the advantages of wide variation amplitude angle range, operational stability and reliability, long service life, remarkable energy-saving effect, reasonable design, simple structure, high automation degree and high working efficiency.
Description
Technical field
The utility model belongs to technical field of engineering machinery, relates to a kind of hydraulic circuit, is specifically related to a kind of aerial platform work jibs luffing and revolution hydraulic circuit.
Background technology
Aerial platform is the advanced special-purpose special aloft work machinery that a kind of air position that staff, power tool etc. are transported to appointment by job platform carries out the operations such as installation, maintenance.Aerial platform is a kind of special-use vehicle, belongs to again construction machinery and equipment simultaneously, is a kind of very important high-altitude preparation of construction.At present, domestic is that the work jibs of aerial platform adopts folding arm more, and the folding arm volume is large and heavy, is difficult to adapt to the job requirements in some relatively narrow places in the city.Reach same height, telescopic boom can be realized job requirements under the drive of its luffing and revolution hydraulic circuit, can greatly dwindle own vol again.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of aerial platform work jibs luffing and revolution hydraulic circuit are provided, and its change angle scope is large, stable and reliable operation, long service life, reasonable in design, simple in structure, degree of automation is high, high efficiency.
for achieving the above object, the technical solution adopted in the utility model is: a kind of aerial platform work jibs luffing and revolution hydraulic circuit, comprise the luffing hydraulic actuating cylinder and with the HM Hydraulic Motor of drg, it is characterized in that: described luffing hydraulic actuating cylinder rodless cavity is communicated with solenoid directional control valve one L mouth, described luffing hydraulic actuating cylinder rod chamber is communicated with solenoid directional control valve two D mouths, described solenoid directional control valve one N mouth and solenoid directional control valve two F mouths all are communicated with in oil return pipe, passing volume control device one after the external pipe of described solenoid directional control valve one M mouth and solenoid directional control valve two E mouths is communicated with is communicated with oil inlet, described HM Hydraulic Motor A mouth and B mouth are communicated with respectively at solenoid directional control valve Three S's mouth and R mouth, described solenoid directional control valve three Q mouths are communicated with oil outlet pipe, the external pipe of described solenoid directional control valve three P mouths passes volume control device two and is communicated with oil inlet, described drg is communicated with shuttle valve by oil circuit control, and described shuttle valve is connected in parallel on S mouth and the R mouth of solenoid directional control valve three.
Above-mentioned aerial platform work jibs luffing and revolution hydraulic circuit is characterized in that: be provided with two balance cocks one between described luffing hydraulic actuating cylinder rod chamber and rodless cavity, be provided with two balance cocks two between described HM Hydraulic Motor and described change-over valve one.
Above-mentioned aerial platform work jibs luffing and revolution hydraulic circuit is characterized in that: described volume control device one and described volume control device two form by proportional flow control valve and difference Inductance valve serial connection.
Above-mentioned aerial platform work jibs luffing and revolution hydraulic circuit, it is characterized in that: described solenoid directional control valve one and described solenoid directional control valve two are two position, three-way electromagnetic change valve, and described electromagnetism solenoid directional control valve three is the 3-position 4-way solenoid directional control valve.
The utility model compared with prior art has the following advantages:
(1) this aerial platform work jibs luffing and revolution hydraulic circuit change angle scope are large, can-15 ° to 75 ° free conversion in scope, and turntable can 360 ° freely rotates.
(2) this aerial platform work jibs luffing and revolution hydraulic circuit have two two balance cocks, can make system's stability in operational process very high, service life large leap ahead.
(3) this aerial platform work jibs luffing and revolution Hydraulic Circuit Design are reasonable, when completing required action, make the structure of telescopic boom more simple, and volume is less, and weight is lighter.
(4) this aerial platform work jibs luffing and revolution hydraulic circuit degree of automation are high, high efficiency.
Below by drawings and Examples, the utility model is described in further detail.
Description of drawings
Fig. 1 is hydraulic control principle schematic of the present utility model.
Description of reference numerals:
1-luffing hydraulic actuating cylinder; 2-solenoid directional control valve one; 3-solenoid directional control valve two;
4-volume control device one; 5-volume control device two; 6-change-over valve one;
The 7-shuttle valve; The 8-drg; The two balance cocks one of 9-;
The two balance cocks two of 10-; The 11-HM Hydraulic Motor.
The specific embodiment
A kind of aerial platform work jibs luffing as shown in Figure 1 and revolution hydraulic circuit, comprise luffing hydraulic actuating cylinder 1 and with the HM Hydraulic Motor 11 of drg 8, described luffing hydraulic actuating cylinder 1 rodless cavity is communicated with the L mouth of solenoid directional control valve 1, described luffing hydraulic actuating cylinder 1 rod chamber is communicated with the D mouth of solenoid directional control valve 23, the N mouth of described solenoid directional control valve 1 and the F mouth of solenoid directional control valve 23 all are communicated with in oil return pipe, pass volume control device 1 after the external pipe of the M mouth of described solenoid directional control valve 1 and the E mouth of solenoid directional control valve 23 is communicated with and are communicated with oil inlet; The A mouth of described HM Hydraulic Motor 11 and B mouth are communicated with respectively at S mouth and the R mouth of solenoid directional control valve 36, the Q mouth of described solenoid directional control valve 36 is communicated with oil outlet pipe, the external pipe of the P mouth of described solenoid directional control valve 36 passes volume control device 25 and is communicated with oil inlet, described drg 8 is communicated with shuttle valve 7 by oil circuit control, and described shuttle valve 7 is connected in parallel on S mouth and the R mouth of solenoid directional control valve 36.
As shown in Figure 1, be provided with two balance cocks 1 between described luffing hydraulic actuating cylinder 1 rod chamber and rodless cavity, be provided with two balance cocks 2 10 between described HM Hydraulic Motor 11 and described change-over valve 1.
As shown in Figure 1, described volume control device 1 and described volume control device 25 form by proportional flow control valve and difference Inductance valve serial connection.
As shown in Figure 1, described solenoid directional control valve 1 and described solenoid directional control valve 23 are two position, three-way electromagnetic change valve, and described electromagnetism solenoid directional control valve 36 is the 3-position 4-way solenoid directional control valve.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solutions of the utility model.
Claims (4)
1. an aerial platform work jibs luffing and revolution hydraulic circuit, comprise luffing hydraulic actuating cylinder (1) and with the HM Hydraulic Motor (11) of drg (8), it is characterized in that: described luffing hydraulic actuating cylinder (1) rodless cavity is communicated with solenoid directional control valve one (2) L mouth, described luffing hydraulic actuating cylinder (1) rod chamber is communicated with solenoid directional control valve two (3) D mouths, described solenoid directional control valve one (2) N mouth and solenoid directional control valve two (3) F mouths all are communicated with in oil return pipe, passing volume control device one (4) after the external pipe of described solenoid directional control valve one (2) M mouth and solenoid directional control valve two (3) E mouths is communicated with is communicated with oil inlet, described HM Hydraulic Motor (11) A mouth and B mouth are communicated with respectively at solenoid directional control valve three (6) S mouths and R mouth, described solenoid directional control valve three (6) Q mouths are communicated with oil outlet pipe, the external pipe of described solenoid directional control valve three (6) P mouths passes volume control device two (5) and is communicated with oil inlet, described drg (8) is communicated with shuttle valve (7) by oil circuit control, and described shuttle valve (7) is connected in parallel on S mouth and the R mouth of solenoid directional control valve three (6).
2. according to aerial platform work jibs luffing claimed in claim 1 and revolution hydraulic circuit, it is characterized in that: be provided with two balance cocks one (9) between described luffing hydraulic actuating cylinder (1) rod chamber and rodless cavity, be provided with two balance cocks two (10) between described HM Hydraulic Motor (11) and described change-over valve one (6).
3. according to aerial platform work jibs luffing claimed in claim 1 and revolution hydraulic circuit, it is characterized in that: described volume control device one (4) and described volume control device two (5) form by proportional flow control valve and difference Inductance valve serial connection.
4. according to aerial platform work jibs luffing claimed in claim 1 and revolution hydraulic circuit, it is characterized in that: described solenoid directional control valve one (2) and described solenoid directional control valve two (3) are two position, three-way electromagnetic change valve, and described electromagnetism solenoid directional control valve three (6) is the 3-position 4-way solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220576506 CN202988660U (en) | 2012-11-04 | 2012-11-04 | Variation amplitude and rotary hydraulic circuit for operation arm of high-altitude operation car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220576506 CN202988660U (en) | 2012-11-04 | 2012-11-04 | Variation amplitude and rotary hydraulic circuit for operation arm of high-altitude operation car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202988660U true CN202988660U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220576506 Expired - Fee Related CN202988660U (en) | 2012-11-04 | 2012-11-04 | Variation amplitude and rotary hydraulic circuit for operation arm of high-altitude operation car |
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| CN (1) | CN202988660U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805062A (en) * | 2016-03-24 | 2016-07-27 | 中国北方车辆研究所 | Quantitative pump truck posture adjustment system with single acting cylinder |
| CN105822615A (en) * | 2016-04-29 | 2016-08-03 | 泰富重工制造有限公司 | Hydraulic control system of engineering machinery amplitude change mechanism |
| CN106762920A (en) * | 2017-03-23 | 2017-05-31 | 陕西奥力信工程机械有限公司 | A kind of powershift valve and the hydraulic system with powershift valve |
| CN110701126A (en) * | 2019-10-31 | 2020-01-17 | 徐州徐工随车起重机有限公司 | Bridge inspection vehicle and variable-amplitude support leg hydraulic control system and control method thereof |
-
2012
- 2012-11-04 CN CN 201220576506 patent/CN202988660U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805062A (en) * | 2016-03-24 | 2016-07-27 | 中国北方车辆研究所 | Quantitative pump truck posture adjustment system with single acting cylinder |
| CN105822615A (en) * | 2016-04-29 | 2016-08-03 | 泰富重工制造有限公司 | Hydraulic control system of engineering machinery amplitude change mechanism |
| CN105822615B (en) * | 2016-04-29 | 2017-10-03 | 泰富重工制造有限公司 | The hydraulic control system of engineering machinery jib lubbing mechanism |
| CN106762920A (en) * | 2017-03-23 | 2017-05-31 | 陕西奥力信工程机械有限公司 | A kind of powershift valve and the hydraulic system with powershift valve |
| CN110701126A (en) * | 2019-10-31 | 2020-01-17 | 徐州徐工随车起重机有限公司 | Bridge inspection vehicle and variable-amplitude support leg hydraulic control system and control method thereof |
| CN110701126B (en) * | 2019-10-31 | 2023-08-08 | 徐州徐工随车起重机有限公司 | Bridge detection vehicle and amplitude-variable supporting leg hydraulic control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131104 |