CN201753238U - Hydraulic operating mechanism of automobile crane - Google Patents
Hydraulic operating mechanism of automobile crane Download PDFInfo
- Publication number
- CN201753238U CN201753238U CN2010202873419U CN201020287341U CN201753238U CN 201753238 U CN201753238 U CN 201753238U CN 2010202873419 U CN2010202873419 U CN 2010202873419U CN 201020287341 U CN201020287341 U CN 201020287341U CN 201753238 U CN201753238 U CN 201753238U
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Abstract
The utility model relates to a hydraulic operating mechanism of an automobile crane, which comprises a power takeoff, a hydraulic pump, lower automobile multiway valves, supporting leg hydraulic cylinders, bidirectional hydraulic locks, expansion leg hydraulic cylinders and the like. The power takeoff takes off power from a transmission gear to drive the hydraulic pump to rotate, pumped high-pressure oil enters upper automobile multiway valves, the upper automobile multiway valve A1 is connected with a rotation motor, the upper automobile multiway valve A2 and the upper automobile multiway valve A3 are respectively connected with a variable-amplitude and expanding hydraulic cylinder and a small winch motor, the upper automobile multiway valve A5 connected in series with a balance valve is connected with a large winch motor and connected in parallel with a large winch motor brake cylinder, and a pressure gauge connected in series with a KF type pressure gauge switch is connected in parallel with the upper automobile multiway valves. When the high-pressure oil flows through the lower automobile multiway valves, upper positions of the four valves of the lower automobile multiway valves are respectively connected in series with the four expansion leg hydraulic cylinders while lower positions are respectively connected in series with the four supporting leg hydraulic cylinders, and each supporting leg hydraulic cylinder is connected in series with one bidirectional plate-type hydraulic lock. The hydraulic operating mechanism has the advantages of convenient operation, reliability, stability, fine manufacturability and simple structure.
Description
Technical field:
The novel construction machinery and equipment that belongs to of this use is made the field, relates in particular to a kind of car hosit hydraulic control mechanism.
Background technology:
Because truck with loading crane requires load-carrying capacity big, can work having under impact, vibration, temperature traverse is big and environment the is relatively poor condition, but its power element requires execution simple, positional precision is lower.Therefore lorry-mounted crane arises at the historic moment, and this hydraulic efficiency pressure system is generally used the mesohigh manual control system, and system relatively payes attention to guaranteeing safety.
Summary of the invention:
The purpose of this utility model is for providing a kind of power output big, stable action, shock-resistant, flexible operation, convenience, reliable, safe car hosit hydraulic control mechanism.
It is to implement like this that utility model solves the technical scheme that its technical matters adopts: a kind of car hosit hydraulic control mechanism, comprise power takeoff, Hydraulic Pump, the multiway valve of getting off, landing leg hydraulic cylinder, bidirectional hydraulic lock, the hydraulic actuating cylinder of stretching one's legs, the multiple directional control valve of getting on the bus, KF type pressure meter switch, balance cock, shuttle valve, compression indicator, rotary motor, the luffing hydraulic actuating cylinder, flexible hydraulic pressure, little hoist motor, big hoist motor, big hoist motor brake cylinder, the rotary motor brake cylinder, power takeoff drives Hydraulic Pump from the gear-box axle power taking and rotates, the high pressure oil of extracting out enters when getting on the bus multiway valve, the multiway valve A1 that gets on the bus links to each other with rotary motor, a shuttle valve in parallel simultaneously and rotary motor brake cylinder; Get on the bus multiway valve A2, get on the bus multiway valve A3 with link to each other and the balance cock of respectively connecting in the middle of the loop respectively with telescopic hydraulic cylinder and little hoist motor with luffing; The multiway valve A5 that gets on the bus serial connection balance cock is connected with big hoist motor, and a big hoist motor brake cylinder in parallel; Compression indicator serial connection KF type pressure meter switch is in parallel with the multiway valve of getting on the bus.
When the high pressure oil process of gear type pump is got off multiway valve, from the multiway valve B1 that gets off to eight control positioies of four valves of multiway valve B4 of getting off, upperly connect with four hydraulic actuating cylinders of stretching one's legs respectively, the nextly connect with four landing leg hydraulic cylinders respectively, and two-way board-like hydraulic lock of each landing leg hydraulic cylinder polyphone.By pass valve all is installed on each oil circuit, is prevented the excessive infringement Hydraulic Elements of pressure.When pressure was excessive, part hydraulic oil guaranteed the oil circuit normal pressure by by pass valve meeting fuel tank.
The utlity model has simple to operationly, reliable and stable, good manufacturability, material source are abundant, characteristic of simple structure, are easy on the open market buy.
Description of drawings:
Accompanying drawing is a schematic diagram of the present utility model.
Among the figure: 1. power takeoff, 2. Hydraulic Pump, the multiway valve of 3. getting off (B1, B2, B3, B4, B5), 4. landing leg hydraulic cylinder, 5. bidirectional hydraulic lock, 6. stretch one's legs hydraulic actuating cylinder, 7. swivel joint, 8. the multiway valve (A1, A2, A3, A4, A5) of getting on the bus, 9.KF type pressure meter switch, 10. balance cock, 11. shuttle valve, 12. compression indicators, 13. rotary motors, 14. the luffing hydraulic actuating cylinder, 15. telescopic hydraulic cylinders, 16. little hoist motors, 17. big hoist motor, 18. big hoist motor brake cylinders, 19. rotary motor brake cylinders.
The specific embodiment:
As shown in drawings, a kind of car hosit hydraulic control mechanism comprises power takeoff 1, Hydraulic Pump 2, the multiway valve 3 of getting off, landing leg hydraulic cylinder 4, bidirectional hydraulic lock 5, the hydraulic actuating cylinder 6 of stretching one's legs, swivel joint 7, the multiway valve 8 of getting on the bus, KF type pressure meter switch 9, balance cock 10, shuttle valve 11, compression indicator 12, rotary motor 13, luffing hydraulic actuating cylinder 14, telescopic hydraulic cylinder 15, little hoist motor 16, big hoist motor 17, big hoist motor brake cylinder 18 and rotary motor brake cylinder 19.
During the car hosit mode of operation, power takeoff 1 is from 2 rotations of change speed gear box power taking driven gear pump, obtain high pressure oil to the multiway valve 8 of getting on the bus, multiway valve 8 each change-over valves of getting on the bus are controlled rotary motor 13, luffing hydraulic actuating cylinder 14, telescopic hydraulic cylinder 15, little hoist motor 16 and big hoist motor 17. rotary motors 13 from left to right respectively can control rotating by change-over valve, constitute rotary loop, be convenient to big arm and operate in any direction; Luffing hydraulic actuating cylinder 14 can change the operation height of big arm, constitutes the luffing loop; Telescopic hydraulic cylinder 15 can be adjusted big arm kinematic velocity, constitutes the flexible loop of big arm; Little hoist motor 16 is used for the different lifting of goods of lift heavy amount with big hoist motor 17 or stops, and constitutes the lifting loop.Balance cock 10 is all installed in wherein back four loops, because of weight is descending and big arm shrinks and during luffing, load is identical with the hydraulic coupling direction, power element can be out of control, on oil return line, balance cock 10 must be installed, the hand of rotation that big hoist motor brake cylinder 18 and rotary motor brake cylinder 19 can the modulated pressure motors for this reason.The compression indicator 12 in parallel on the loop of getting on the bus can be paid close attention to the pressure that hydraulic pressure has constantly, and compression indicator 12 has 9 controls of KF type pressure meter switch, and swivel joint 7 makes the oil pipe system quiescence of getting on the bus relatively, prevents that oil pipe from twisting off.When getting off mode of operation, eight control positioies of four change-over valves in the multiway valve 3 of getting off have been controlled the flexible state of four supporting leg cylinders 4 and four cylinders 6 of stretching one's legs, all is furnished with a bidirectional hydraulic lock 5 on each supporting leg cylinder, to guarantee that the supporting leg failure-free pins, prevent from the hoisting operation process, to take place that hydraulic ram falls voluntarily in " soft leg " phenomenon or the driving process.
By pass valve all is installed on each oil circuit, is prevented the excessive infringement Hydraulic Elements of pressure.When pressure was excessive, part hydraulic oil guaranteed the oil circuit normal pressure by by pass valve meeting fuel tank.
Claims (2)
1. car hosit hydraulic control mechanism, comprise: power takeoff (1), Hydraulic Pump (2), the multiway valve of getting off (3), landing leg hydraulic cylinder (4), bidirectional hydraulic lock (5), the hydraulic actuating cylinder of stretching one's legs (6), swivel joint (7), get on the bus multiway valve (8), KF type pressure meter switch (9), balance cock (10), shuttle valve (11), compression indicator, rotary motor (13), luffing hydraulic actuating cylinder (14), telescopic hydraulic cylinder (15), little hoist motor (16), big hoist motor (17), big hoist motor brake cylinder (18), rotary motor brake cylinder (19) is characterized in that:
Power takeoff (1) drives Hydraulic Pump (2) from the gear-box axle power taking and rotates, and when the high pressure oil of extraction entered the multiway valve of getting on the bus (8), the multiway valve of getting on the bus (8) A1 linked to each other with rotary motor (13), a shuttle valve (11) simultaneously in parallel and rotary motor brake cylinder (19); Get on the bus multiway valve (8) A2, the multiway valve of getting on the bus (8) A3 with link to each other and the balance cock (10) of respectively connecting in the middle of the loop respectively with telescopic hydraulic cylinder (15) and little hoist motor (16) with luffing hydraulic actuating cylinder (14); Multiway valve (8) A5 that gets on the bus serial connection balance cock (10) is connected with big hoist motor (17), and a big hoist motor brake cylinder (18) in parallel; Compression indicator (12) serial connection KF type pressure meter switch (9) is in parallel with the multiway valve of getting on the bus (8).When the high pressure oil process of gear type pump (2) is got off multiway valve (3), from the multiway valve of getting off (3) B1 to eight control positioies of four valves of the multiway valve of getting off (3) B4, upperly connect with four hydraulic actuating cylinders of stretching one's legs (6) respectively, the nextly connect with four landing leg hydraulic cylinders (4) respectively, and each landing leg hydraulic cylinder (4) polyphone two-way board-like hydraulic lock (5).
2. a kind of car hosit hydraulic control mechanism according to claim 1 is characterized in that: by pass valve all is installed on each oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202873419U CN201753238U (en) | 2010-08-11 | 2010-08-11 | Hydraulic operating mechanism of automobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202873419U CN201753238U (en) | 2010-08-11 | 2010-08-11 | Hydraulic operating mechanism of automobile crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201753238U true CN201753238U (en) | 2011-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202873419U Expired - Fee Related CN201753238U (en) | 2010-08-11 | 2010-08-11 | Hydraulic operating mechanism of automobile crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN201753238U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788055A (en) * | 2012-08-07 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN104176639A (en) * | 2014-08-13 | 2014-12-03 | 徐州重型机械有限公司 | Constant-pressure-variable network hydraulic system, hydraulic control method and crane |
| WO2015078089A1 (en) * | 2013-11-28 | 2015-06-04 | 付礼成 | Circular-flow power machine |
| CN106151148A (en) * | 2016-08-31 | 2016-11-23 | 徐州徐工随车起重机有限公司 | A kind of hydraulic control system of folding-jib high-altitude operation vehicle |
| CN108423549A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane hydraulic system and working method |
| CN108423550A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane |
| CN108423577A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane autobalance and force balance system and method |
| CN109236766A (en) * | 2018-10-10 | 2019-01-18 | 湖北先行专用汽车有限公司 | A kind of side fork lifts formula and removes obstacles vehicle hydraulic system |
| CN109340200A (en) * | 2018-11-29 | 2019-02-15 | 中联重科股份有限公司 | Hydraulic power controls oil circuit, hydraulic power control method and engineering machinery |
| CN111473009A (en) * | 2020-04-17 | 2020-07-31 | 周萍 | Hydraulic dynamic balance support leg device based on 5G mobile laundry station |
| CN114735092A (en) * | 2022-04-21 | 2022-07-12 | 徐州徐工环境技术有限公司 | Unbalance loading balancing device and control method suitable for double-brush operation of wall surface cleaning vehicle |
| CN114753287A (en) * | 2022-04-22 | 2022-07-15 | 徐州徐工环境技术有限公司 | Operation method of wall surface cleaning vehicle |
-
2010
- 2010-08-11 CN CN2010202873419U patent/CN201753238U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788055A (en) * | 2012-08-07 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN102788055B (en) * | 2012-08-07 | 2015-03-25 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| WO2015078089A1 (en) * | 2013-11-28 | 2015-06-04 | 付礼成 | Circular-flow power machine |
| CN104176639A (en) * | 2014-08-13 | 2014-12-03 | 徐州重型机械有限公司 | Constant-pressure-variable network hydraulic system, hydraulic control method and crane |
| CN106151148A (en) * | 2016-08-31 | 2016-11-23 | 徐州徐工随车起重机有限公司 | A kind of hydraulic control system of folding-jib high-altitude operation vehicle |
| CN108423549B (en) * | 2017-11-30 | 2019-10-15 | 中船华南船舶机械有限公司 | A kind of crane hydraulic system and working method |
| CN108423550A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane |
| CN108423577A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane autobalance and force balance system and method |
| CN108423550B (en) * | 2017-11-30 | 2019-10-15 | 中船华南船舶机械有限公司 | A kind of crane |
| CN108423577B (en) * | 2017-11-30 | 2019-10-15 | 中船华南船舶机械有限公司 | A kind of crane autobalance and force balance system and method |
| CN108423549A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane hydraulic system and working method |
| CN109236766A (en) * | 2018-10-10 | 2019-01-18 | 湖北先行专用汽车有限公司 | A kind of side fork lifts formula and removes obstacles vehicle hydraulic system |
| CN109236766B (en) * | 2018-10-10 | 2024-03-26 | 湖北先行专用汽车有限公司 | Hydraulic system of lateral fork lift type wrecker |
| CN109340200A (en) * | 2018-11-29 | 2019-02-15 | 中联重科股份有限公司 | Hydraulic power controls oil circuit, hydraulic power control method and engineering machinery |
| CN111473009A (en) * | 2020-04-17 | 2020-07-31 | 周萍 | Hydraulic dynamic balance support leg device based on 5G mobile laundry station |
| CN114735092A (en) * | 2022-04-21 | 2022-07-12 | 徐州徐工环境技术有限公司 | Unbalance loading balancing device and control method suitable for double-brush operation of wall surface cleaning vehicle |
| CN114735092B (en) * | 2022-04-21 | 2024-03-26 | 徐州徐工环境技术有限公司 | Unbalanced load balancing device and control method suitable for double-brushing operation of wall cleaning vehicle |
| CN114753287A (en) * | 2022-04-22 | 2022-07-15 | 徐州徐工环境技术有限公司 | Operation method of wall surface cleaning vehicle |
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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: 20110302 Termination date: 20130811 |