CN102910550B - Winch emergency pay-off module - Google Patents
Winch emergency pay-off module Download PDFInfo
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- CN102910550B CN102910550B CN201210350480.5A CN201210350480A CN102910550B CN 102910550 B CN102910550 B CN 102910550B CN 201210350480 A CN201210350480 A CN 201210350480A CN 102910550 B CN102910550 B CN 102910550B
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 14
- 230000008676 import Effects 0.000 claims description 51
- 239000012530 fluid Substances 0.000 claims description 25
- 230000001105 regulatory effect Effects 0.000 claims description 23
- 230000003321 amplification Effects 0.000 claims description 16
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 16
- 230000005611 electricity Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000002828 fuel tank Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention aims to provide a winch emergency pay-off module. The winch emergency pay-off module comprises a bidirectional hydraulic motor, a braking oil cylinder, a first shuttle valve, a bidirectional balance valve, a second shuttle valve, a pressure reducing valve, a hydraulic control normally-closed two-position two-way reversing valve and a hydraulic control two-position thee-way reversing valve, wherein the bidirectional hydraulic motor is provided with a winch, a first inlet, a second inlet and a leakage port; two main oil ports of the hydraulic control normally-closed two-position two-way reversing valve are respectively connected with the first inlet and the second inlet; a control oil inlet and a control oil outlet are respectively connected with an unlocking HP end and the leakage port; an outlet of the first shuttle valve is connected with one inlet of the second shuttle valve by the pressure reducing valve; the other inlet of the second shuttle valve is connected with the unlocking HP end; and the hydraulic control two-position thee-way reversing valve is respectively connected with an outlet of the second shuttle valve, the leakage port and the braking oil cylinder. In the case of accidental power failure, the winch emergency pay-off module can be used for conveniently carrying out unlocking on the braking of a winch and safely paying off weights.
Description
Technical field
The present invention relates to hydraulic crane field, especially a kind ofly when meeting accident dead electricity, can facilitate release safety to transfer the emergent lower amplification module of winch of weight to the brake of winch.
Background technology
Hydraulic crane is the weight-lifting equipment of widespread use; When meeting accident dead electricity, the Hydraulic Pump of hydraulic crane can quit work, the brake meeting automatic locking of the winding plant that HM Hydraulic Motor drives, if winch plays can there is potential safety hazard in weight; The utility model of Chinese patent notification number CN201825681U discloses a kind of hydraulic control system of winding plant, comprises and drives the motor of reel and the oil cylinder of brake drum; Also comprise hydraulicchange-over valve and the energy storage with two control positioies; Hydraulicchange-over valve is arranged between the hydraulic fluid port and the brake off inlet of oil cylinder that elevator rope closing inlet change-over valve and motor is communicated with; At the first control position, the hydraulic fluid port that elevator rope closing inlet change-over valve and motor is communicated with and the brake off inlet conducting of oil cylinder; At the second control position, the brake off inlet of oil cylinder and oil return circuit conducting; The elevator rope closing inlet of motor is to one-way conduction between the hydraulic fluid port of energy storage; And the promotion spool of elevator rope closing inlet change-over valve and motor and spool produces to the chamber at the place, one end of the first control position tendency toward sliding and is communicated with; The promotion spool of the hydraulic fluid port of energy storage and spool produces to the chamber at the other end place of second place tendency toward sliding and is communicated with.Winding plant is winch; The hydraulic control system of this winding plant exists Hydraulic Pump when meeting accident dead electricity to quit work, and the weight playing pins and can not be placed with down the deficiency of potential safety hazard because of the brake of winch; Therefore, design and a kind ofly when meeting accident dead electricity, can facilitate release safety to transfer the emergent lower amplification module of winch of weight to the brake of winch, become problem demanding prompt solution.
Summary of the invention
The object of the invention is to exist Hydraulic Pump when meeting accident dead electricity to quit work in order to overcome the hydraulic control system of current winch, the weight playing pins and can not be placed with down the deficiency of potential safety hazard because of the brake of winch, provides a kind of and can facilitate release safety to transfer the emergent lower amplification module of winch of weight to the brake of winch when meeting accident dead electricity.
Concrete technical scheme of the present invention is:
A hydraulic crane hang-up brake system for unlocking, comprises with winch and has two-way hydraulic motor, brake oil cylinder, the first shuttle valve and the Bidirectional balanced valve of import one, import two and leakage hole; Two imports of the first shuttle valve are connected with import two with import one by Bidirectional balanced valve respectively; Described hydraulic crane hang-up brake system for unlocking also comprises the second shuttle valve, reducing valve, the normally closed bi-bit bi-pass change-over valve of hydraulic control and hydraulic-control two-position three-way reversing valve; A main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of described hydraulic control is connected with import one, another main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of hydraulic control is connected with import two, the control oil inlet of the normally closed bi-bit bi-pass change-over valve of hydraulic control is connected with release HP end, controls oil outlet and is connected with leakage hole; The outlet of the first described shuttle valve is connected with an import of the second shuttle valve by reducing valve, and another import of the second shuttle valve is connected with release HP end; The P mouth of hydraulic-control two-position three-way reversing valve is connected with the outlet of the second shuttle valve, and the C mouth of hydraulic-control two-position three-way reversing valve is connected with leakage hole, and the D mouth of hydraulic-control two-position three-way reversing valve is connected with the brake control port of brake oil cylinder.When this hydraulic crane hang-up brake system for unlocking is used: when hydraulic crane is normally worked, normal winch hoists: pressure oil enters from B1 end, through Bidirectional balanced valve, one tunnel arrives the import one of two-way hydraulic motor, one tunnel makes the oil return oil-feed tank of HM Hydraulic Motor, pressure oil is through the first shuttle valve simultaneously, pass through again the reducing valve (effect of reducing valve: restriction brake circuits pressure, general control pressure is in 5Mpa left and right, extend brake period of service and extend the sealing time, prevent that winch from causing brake oil cylinder pressure excessive because of superpressure simultaneously, cause winch to damage, or easily cause piston to reveal generation, that is: extend the normal service life of winch, also increase the range of use of winch pressure simultaneously, can in higher pressure system, still can use this device) and the second shuttle valve arrive the P mouth of hydraulic-control two-position three-way reversing valve, (this hydraulic-control two-position three-way reversing valve effect: when this valve P mouth does not have pressure, D mouth is communicated with oil return T end, when the P of hydraulic-control two-position three-way reversing valve mouth has pressure, hydraulic-control two-position three-way reversing valve commutation, P mouth is communicated with D mouth, pressure oil is opened brake through hydraulic-control two-position three-way reversing valve and brake oil cylinder), hydraulic control is changed two position three way directional control valve and is commutated and open winch brake, winch just can hoist like this, when not working, winch is braked completely.Normal winch declines: pressure oil is from A1 process Bidirectional balanced valve, one tunnel arrives the import two of two-way hydraulic motor, one tunnel makes the oil return oil-feed tank of two-way hydraulic motor, pressure oil is through the first shuttle valve simultaneously, process reducing valve and the second shuttle valve arrive the P mouth of hydraulic-control two-position three-way reversing valve again, hydraulic-control two-position three-way reversing valve commutates and opens winch brake, and winch just can decline like this, and when not working, winch is braked completely.Winch is emergent transfers operation: the oil suction of hydraulic hand-pump is connected with fuel tank, hydraulic hand-pump is bought oil, one road pressure oil makes hydraulic control change two position three way directional control valve commutation P mouth through the second shuttle valve to be communicated with D mouth, through hydraulic-control two-position three-way reversing valve and brake oil cylinder unlatching, to brake; One road pressure oil is communicated with the main hydraulic fluid port of two of the normally closed bi-bit bi-pass change-over valve of hydraulic control, and the import one of two-way hydraulic motor and import two are communicated with and are formed self-loopa closed loop by the normally closed bi-bit bi-pass change-over valve of hydraulic control.This hydraulic crane hang-up brake system for unlocking can facilitate release safety to transfer weight to the brake of winch when meeting accident dead electricity.
As preferably, between described release HP end and another main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of hydraulic control, be provided with first throttle valve and check valve; The import of described check valve is connected with release HP end, and the outlet of check valve is connected with import two by first throttle valve.One road pressure oil is by (the first throttle valve action: prevent because affect the pressure of self-loopa closed loop to system repairing, so first throttle valve is exactly for back pressure is provided, to meet the needs of energy system pressure of first throttle valve, simultaneously, also be in order to allow system pressure realize the descending at slow speed of system pressure because of repairing, like this in HP pressurization, winch brake oil cylinder working-pressure chamber will be opened when manual pressure, in manual pump commutation or stopping time slightly, system pressure declines, winch brake braking, that is: brake and in emergent transferring, remain " opening brake-braking-unlatching brake " circulating motion like this, only in this way weight could be under Action of Gravity Field, when opening, brake transfers at a slow speed, during drag, stop, only in this way guarantee weight is steadily transferred safely and fast, prevent the generation of the imaginations out of control such as winch coaster) and check valve (check valve effect: system unload while preventing that winch from normally declining) be communicated with import two and realize the winch initiatively repairing that declines, (reason of repairing: because of two-way hydraulic motor time itself have leakage, as leak oil and can not be in time initiatively supplement, in self-loopa closed loop, may suck a lot of gas, winch running may be very unstable like this, even can there is the danger such as coaster) and form certain back pressure for opening brake.System unload and make winch running stable when first throttle valve and check valve prevent that winch from normally declining.
As preferably, between described release HP end and leakage hole, be provided with the second flow regulating valve; Described release HP end is connected with leakage hole by the second flow regulating valve.Because of hydraulic hand-pump pressurization flow very little, and pressure is discountinuity, the second flow regulating valve is in order to prevent that HP from allowing this circuit pressure reveal while not pressurizeing, otherwise may affect because of back pressure the reset of the normally closed bi-bit bi-pass change-over valve of hydraulic control, cause winch brake loop to be directly communicated with oil return line, i.e. winch brake will become braking by opening; When hydraulic hand-pump average rate is slowly pressurizeed, the drg of winch is opened one in one always and is closed mutual alternating state, and under the effect of gravity, winch will slowly steadily be transferred, can not open and cause weight to be transferred fast because of winch brake, the even complete dangerous situation that waits out of control occurs.The second flow regulating valve has prevented that HP from allowing this circuit pressure reveal while not pressurizeing, do not affect the reset of the normally closed bi-bit bi-pass change-over valve of hydraulic control.
As preferably, between main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of described hydraulic control and import one, be provided with the 3rd flow regulating valve; A main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of hydraulic control is connected with import one by the 3rd flow regulating valve.The 3rd flow regulating valve is realized back pressure speed governing.
As preferably, the emergent lower amplification module of described winch is provided with hydraulic hand-pump, and the pressure hydraulic fluid port of hydraulic hand-pump is held and is connected with release HP.This winch is emergent transfers module whole compact conformation, easy to operate; At hydraulic crane during because of dead electricity hang-up, as long as hydraulic hand-pump is connected to oil suction pipe to be connected with fuel tank, directly hydraulic hand-pump pressurizes and just can realize the release of braking and transfer weight, need not go to adjust the winch hydraulic control system of hydraulic crane again.
Compared with prior art, the invention has the beneficial effects as follows: one. system unload and make winch running stable when first throttle valve and check valve prevent that winch from normally declining.Two. system unload and make winch running stable when first throttle valve and check valve prevent that winch from normally declining.Three. the second flow regulating valve has prevented that HP from allowing this circuit pressure reveal while not pressurizeing, do not affect the reset of the normally closed bi-bit bi-pass change-over valve of hydraulic control.Four. the 3rd flow regulating valve is realized back pressure speed governing.Five. this winch is emergent transfers module whole compact conformation, easy to operate; At hydraulic crane during because of dead electricity hang-up, as long as hydraulic hand-pump is connected to oil suction pipe to be connected with fuel tank, directly hydraulic hand-pump pressurizes and just can realize the release of braking and transfer weight, need not go to adjust the winch hydraulic control system of hydraulic crane again.
Accompanying drawing explanation
Fig. 1 is a kind of hydraulic circuit schematic diagram of the present invention.
In figure: winch-1, two-way hydraulic motor-2, import one-21, import two-22, leakage hole-23, brake oil cylinder-3, brake control port-31, the first shuttle valve-4, Bidirectional balanced valve-5, the second shuttle valve-6, reducing valve-7, hydraulic-control two-position three-way reversing valve-8, P mouth-81, C mouth-82, D mouth-83, hydraulic hand-pump-9, pressure hydraulic fluid port-91, the normally closed bi-bit bi-pass of hydraulic control change-over valve-10, release HP end-11, first throttle valve-12, check valve-13, the second flow regulating valve-14, the 3rd flow regulating valve-15.
the specific embodiment
Below in conjunction with shown in accompanying drawing, the present invention is described further.
As shown in Figure 1: the emergent lower amplification module of a kind of winch, comprises with winch 1 and have two-way hydraulic motor 2, brake oil cylinder 3, the first shuttle valve 4, Bidirectional balanced valve 5, the second shuttle valve 6, reducing valve 7, hydraulic-control two-position three-way reversing valve 8 and the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control of import 1, import 2 22 and leakage hole 23; Two imports of the first described shuttle valve 4 are connected with import 2 22 with import 1 by Bidirectional balanced valve 5 respectively; A main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve 10 of described hydraulic control is connected with import 1, another main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control is connected with import 2 22, the control oil inlet of the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control is connected with release HP end 11, controls oil outlet and is connected with leakage hole 23; The outlet of the first described shuttle valve 4 is connected with an import of the second shuttle valve 6 by reducing valve 7, and another import of the second shuttle valve 6 is connected with release HP end 11; The P mouth 81 of hydraulic-control two-position three-way reversing valve 8 is connected with the outlet of the second shuttle valve 6, and the C mouth 82 of hydraulic-control two-position three-way reversing valve 8 is connected with leakage hole 23, and the D mouth 83 of hydraulic-control two-position three-way reversing valve 8 is connected with the brake control port 31 of brake oil cylinder 3.
Between described release HP end 11 and another main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control, there is first throttle valve 12 and check valve 13; The import of described check valve 13 is connected with release HP end 11, and the outlet of check valve 13 is connected with import 2 22 by first throttle valve 12.
Between described release HP end 11 and leakage hole 23, there is the second flow regulating valve 14; Described release HP end 11 is connected with leakage hole 23 by the second flow regulating valve 14.
Between main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve 10 of described hydraulic control and import 1, there is the 3rd flow regulating valve 15; A main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control is connected with import 1 by the 3rd flow regulating valve 15.
The emergent lower amplification module of described winch has hydraulic hand-pump 9, and the pressure hydraulic fluid port 91 of hydraulic hand-pump 9 is connected with release HP end 11.
Winch 1 hydraulic control system of this hydraulic crane is same as the prior art, and those skilled in the art just can realize without creative work based on prior art.
When the emergent lower amplification module of this winch is used:
When hydraulic crane is normally worked, normal winch 1 hoists: pressure oil enters from B1 end, through Bidirectional balanced valve 5, one tunnel arrives the import 1 of two-way hydraulic motor 2, one tunnel makes the oil return oil-feed tank of two-way hydraulic motor 2, pressure oil is through the first shuttle valve 4 simultaneously, pass through again the effect of reducing valve 7(reducing valve 7: restriction brake circuits pressure, general control pressure is in 5Mpa left and right, extend brake period of service and extend the sealing time, prevent that winch 1 from causing brake oil cylinder 3 pressure excessive because of superpressure simultaneously, cause winch 1 to damage, that is: extend the normal service life of winch 1, also increase the range of use of winch 1 pressure simultaneously, can in higher pressure system, still can use this device) and the second shuttle valve 6 arrive the P mouth 81 of hydraulic-control two-position three-way reversing valves 8, (these hydraulic-control two-position three-way reversing valve 8 effects: when this valve P mouth 81 does not have pressure, D mouth 83 is communicated with oil return T end, when the P of hydraulic-control two-position three-way reversing valve 8 mouth 81 has pressure, hydraulic-control two-position three-way reversing valve 8 commutation P mouths 81 are communicated with D mouth 83, pressure oil is opened brake through hydraulic-control two-position three-way reversing valve 8 and brake oil cylinder 3), hydraulic control is changed two position three way directional control valve and is commutated and open winch 1 brake, winch 1 just can hoist like this, when not working, winch 1 is braked completely.
Normal winch 1 declines: pressure oil is from A1 process Bidirectional balanced valve 5, one tunnel arrives the import 2 22 of two-way hydraulic motor 2, one tunnel makes the oil return oil-feed tank of two-way hydraulic motor 2, pressure oil is through the first shuttle valve 4 simultaneously, process reducing valve 7 and the second shuttle valve 6 arrive the P mouth 81 of hydraulic-control two-position three-way reversing valves 8 again, hydraulic-control two-position three-way reversing valve 8 commutates and opens winch 1 brake, and winch 1 just can decline like this, and when not working, winch 1 is braked completely.
Winch is emergent transfers operation: the oil suction of hydraulic hand-pump 9 is connected with fuel tank, and hydraulic hand-pump 9 is bought oil, and a road pressure oil makes the P mouth 81 of hydraulic-control two-position three-way reversing valve 8 be communicated with D mouth 83 through the second shuttle valve 6, through brake oil cylinder 3, opens brake, one road pressure oil is communicated with the main hydraulic fluid port of two of the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control, and the import 1 of two-way two-way hydraulic motor 22 and import 2 22 are communicated with and are formed self-loopa closed loop by the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control, simultaneously, one road pressure oil acts on by first throttle valve 12(first throttle valve 12: prevent because affect the pressure of self-loopa closed loop to system repairing, so first throttle valve 12 is exactly for back pressure is provided, to meet the needs of system pressure) and 13 effects of check valve 13(check valve: system unload while preventing winch 1 normal decline) be communicated with import 2 22 and realize winch 1 initiatively repairing of decline, (reason of repairing: because of two-way two-way hydraulic motor 22 time itself have leakage, as leak oil and can not be in time initiatively supplement, in self-loopa closed loop, may suck a lot of gas, winch 1 running may be very unstable like this, even can there is the danger such as coaster) and form certain back pressure for opening brake.
Because of hydraulic hand-pump 9 pressurization flows very little, and pressure is discountinuity, the second flow regulating valve 14 is in order to prevent that HP from allowing this circuit pressure reveal while not pressurizeing, otherwise may affect because of back pressure the reset of the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control, cause winch 1 brake circuits to be directly communicated with oil return line, i.e. winch 1 brake will become braking by opening; When hydraulic hand-pump 9 average rates are slowly pressurizeed, the drg of winch 1 is opened one in one always and is closed mutual alternating state, and under the effect of gravity, winch 1 will slowly steadily be transferred, can not open and cause weight to be transferred fast because of winch 1 brake, the even complete dangerous situation that waits out of control occurs.
The 3rd flow regulating valve 15 is realized back pressure speed governing.
This winch is emergent transfers module whole compact conformation, easy to operate; At hydraulic crane during because of dead electricity hang-up, as long as hydraulic hand-pump 9 is connected to oil suction pipe to be connected with fuel tank, directly hydraulic hand-pump 9 pressurizes and just can realize the release of braking and transfer weight, need not go to adjust winch 1 hydraulic control system of hydraulic crane again; The emergent lower amplification module of this winch is used widely on a lot of hydraulic cranes, and obtains good effect.
The invention has the beneficial effects as follows: system unload and make winch running stable when first throttle valve and check valve prevent that winch from normally declining.System unload and make winch running stable when first throttle valve and check valve prevent that winch from normally declining.The second flow regulating valve has prevented that HP from allowing this circuit pressure reveal while not pressurizeing, do not affect the reset of the normally closed bi-bit bi-pass change-over valve of hydraulic control.The 3rd flow regulating valve is realized back pressure speed governing.This winch is emergent transfers module whole compact conformation, easy to operate; At hydraulic crane during because of dead electricity hang-up, as long as hydraulic hand-pump is connected to oil suction pipe to be connected with fuel tank, directly hydraulic hand-pump pressurizes and just can realize the release of braking and transfer weight, need not go to adjust the winch hydraulic control system of hydraulic crane again.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All so apparent modifications of the technical personnel to described field, within being included in the scope of this claim.
Claims (5)
1. the emergent lower amplification module of winch, comprises with winch and has two-way hydraulic motor, brake oil cylinder, the first shuttle valve and the Bidirectional balanced valve of import one, import two and leakage hole; Two imports of the first shuttle valve are connected with import two with import one by Bidirectional balanced valve respectively; It is characterized in that: the emergent lower amplification module of described winch also comprises the second shuttle valve, reducing valve, the normally closed bi-bit bi-pass change-over valve of hydraulic control and hydraulic-control two-position three-way reversing valve; A main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of described hydraulic control is connected with import one, another main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of hydraulic control is connected with import two, the control oil inlet of the normally closed bi-bit bi-pass change-over valve of hydraulic control is connected with release HP end, controls oil outlet and is connected with leakage hole; The outlet of the first described shuttle valve is connected with an import of the second shuttle valve by reducing valve, and another import of the second shuttle valve is connected with release HP end; The P mouth of hydraulic-control two-position three-way reversing valve is connected with the outlet of the second shuttle valve, and the C mouth of hydraulic-control two-position three-way reversing valve is connected with leakage hole, and the D mouth of hydraulic-control two-position three-way reversing valve is connected with the brake control port of brake oil cylinder.
2. the emergent lower amplification module of winch according to claim 1, is characterized in that: between described release HP end and another main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of hydraulic control, be provided with first throttle valve and check valve; The import of described check valve is connected with release HP end, and the outlet of check valve is connected with import two by first throttle valve.
3. the emergent lower amplification module of winch according to claim 1 and 2, is characterized in that: between described release HP end and leakage hole, be provided with the second flow regulating valve; Described release HP end is connected with leakage hole by the second flow regulating valve.
4. the emergent lower amplification module of winch according to claim 1 and 2, is characterized in that: between main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of described hydraulic control and import one, be provided with the 3rd flow regulating valve; A main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of hydraulic control is connected with import one by the 3rd flow regulating valve.
5. the emergent lower amplification module of winch according to claim 1 and 2, is characterized in that: the emergent lower amplification module of described winch is provided with hydraulic hand-pump, and the pressure hydraulic fluid port of hydraulic hand-pump is connected with release HP end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350480.5A CN102910550B (en) | 2012-09-20 | 2012-09-20 | Winch emergency pay-off module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350480.5A CN102910550B (en) | 2012-09-20 | 2012-09-20 | Winch emergency pay-off module |
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| CN102910550A CN102910550A (en) | 2013-02-06 |
| CN102910550B true CN102910550B (en) | 2014-09-10 |
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| CN201210350480.5A Active CN102910550B (en) | 2012-09-20 | 2012-09-20 | Winch emergency pay-off module |
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| CN105692454A (en) * | 2016-04-14 | 2016-06-22 | 徐州重型机械有限公司 | Winch control system and crane |
| CN105971954B (en) * | 2016-07-28 | 2018-02-02 | 安徽环球传动科技有限公司 | A kind of method that fluid motor-driven normal brake application is effectively ensured |
| CN111362170B (en) * | 2020-03-31 | 2022-06-21 | 三一海洋重工有限公司 | Control method and device for hanger cable reel and crane |
| CN113148884B (en) * | 2021-04-20 | 2022-11-29 | 徐州重型机械有限公司 | Emergency power device and crane winch emergency hydraulic control system |
| CN113998607B (en) * | 2021-11-09 | 2024-07-02 | 中船华南船舶机械有限公司 | Winch-controlled hydraulic system |
| CN114212719B (en) * | 2021-11-29 | 2024-04-19 | 中船华南船舶机械有限公司 | Control method of hydraulic system of protection winch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048799A (en) * | 1976-11-17 | 1977-09-20 | Caterpillar Tractor Co. | Winch control |
| CN201825681U (en) * | 2010-07-16 | 2011-05-11 | 徐州重型机械有限公司 | Crane and hydraulic control system of hoisting device thereof |
| CN202148163U (en) * | 2011-07-15 | 2012-02-22 | 上海三一科技有限公司 | Winding emergency lowering device and crane with same |
| CN202400772U (en) * | 2011-12-30 | 2012-08-29 | 宁波凯荣船用机械有限公司 | Hoist device emergency descent oil circuit |
| CN202785440U (en) * | 2012-09-20 | 2013-03-13 | 宁波凯荣船用机械有限公司 | Emergency lowering module for winch |
-
2012
- 2012-09-20 CN CN201210350480.5A patent/CN102910550B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048799A (en) * | 1976-11-17 | 1977-09-20 | Caterpillar Tractor Co. | Winch control |
| CN201825681U (en) * | 2010-07-16 | 2011-05-11 | 徐州重型机械有限公司 | Crane and hydraulic control system of hoisting device thereof |
| CN202148163U (en) * | 2011-07-15 | 2012-02-22 | 上海三一科技有限公司 | Winding emergency lowering device and crane with same |
| CN202400772U (en) * | 2011-12-30 | 2012-08-29 | 宁波凯荣船用机械有限公司 | Hoist device emergency descent oil circuit |
| CN202785440U (en) * | 2012-09-20 | 2013-03-13 | 宁波凯荣船用机械有限公司 | Emergency lowering module for winch |
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| CN102910550A (en) | 2013-02-06 |
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Address after: No.1, building 2, No.168, Chunxiao Yonghe Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Kairong new energy Co., Ltd Address before: 315806 No. 86 mould Road, Beilun New District, Zhejiang, Ningbo Patentee before: NINGBO KAIRONG SHIP MACHINERY Co.,Ltd. |