CN102910550A - Winch emergency pay-off module - Google Patents
Winch emergency pay-off module Download PDFInfo
- Publication number
- CN102910550A CN102910550A CN2012103504805A CN201210350480A CN102910550A CN 102910550 A CN102910550 A CN 102910550A CN 2012103504805 A CN2012103504805 A CN 2012103504805A CN 201210350480 A CN201210350480 A CN 201210350480A CN 102910550 A CN102910550 A CN 102910550A
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- winch
- control
- import
- 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.)
- Granted
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
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 the hydraulic crane field, the emergent lower amplification module of especially a kind of winch that when meeting accident dead electricity, can make things convenient for the brake of winch release and safety to transfer weight.
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, and can there be potential safety hazard in weight if winch plays; The utility model of Chinese patent notification number CN201825681U discloses a kind of hydraulic control system of winding plant, comprises the motor that drives reel and the oil cylinder of brake drum; Also comprise hydraulicchange-over valve and energy storage with two control positioies; Hydraulicchange-over valve is arranged between the brake off inlet of hydraulic fluid port that elevator rope closing inlet change-over valve and motor is communicated with and oil cylinder; 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 an end place 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; Hydraulic control system existence Hydraulic Pump when meeting accident dead electricity of this winding plant quits work, and the weight that plays pins the deficiency that can not be placed with down potential safety hazard because of the brake of winch; Therefore, design the emergent lower amplification module of a kind of winch that when meeting accident dead electricity, can make things convenient for the brake of winch release and safety to transfer weight, become problem demanding prompt solution.
Summary of the invention
The objective of the invention is to quit work for the hydraulic control system existence Hydraulic Pump when meeting accident dead electricity that overcomes present winch, the weight that plays pins the deficiency that can not be placed with down potential safety hazard because of the brake of winch, provides a kind of winch that can make things convenient for the brake of winch release and safety to transfer weight when meeting accident dead electricity emergent lower amplification module.
Concrete technical scheme of the present invention is:
A kind of 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 by Bidirectional balanced valve and import one respectively and are connected; 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, and the control oil outlet is connected with leakage hole; The outlet of described the first 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 uses: when hydraulic crane works, normal winch hoists: pressure oil enters from the B1 end, through Bidirectional balanced valve, one the tunnel arrives the import one of two-way hydraulic motor, one the 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 about 5Mpa, prolong the brake period of service and prolong the sealing time, prevent that simultaneously winch from causing brake oil cylinder pressure excessive because of superpressure, cause winch to damage, or cause easily piston to reveal generation, that is: prolong the normal service life of winch, also increase simultaneously the range of use of winch pressure, 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, the D mouth is communicated with oil return T end, when the P of hydraulic-control two-position three-way reversing valve mouth has pressure, the hydraulic-control two-position three-way reversing valve commutation, the P mouth is communicated with the D mouth, pressure oil is opened brake through hydraulic-control two-position three-way reversing valve and brake oil cylinder), hydraulic control is changed the two position three way directional control valve commutation and is opened winch brake, winch just can hoist like this, and winch is braked fully when not working.Normal winch descends: pressure oil is from A1 process Bidirectional balanced valve, one the tunnel arrives the import two of two-way hydraulic motor, one the 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, the hydraulic-control two-position three-way reversing valve commutation is also opened winch brake, and winch just can descend like this, and winch is braked fully when not working.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 the D mouth, to brake through hydraulic-control two-position three-way reversing valve and brake oil cylinder unlatching; 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 formation 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 make things convenient for the brake of winch release and safety to transfer weight when meeting accident dead electricity.
As preferably, be provided with first throttle valve and check valve between another main hydraulic fluid port of described release HP end and the normally closed bi-bit bi-pass change-over valve of hydraulic control; The import of described check valve is connected with release HP end, and the outlet of check valve is connected with import two by the 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's repairing, so the first throttle valve is exactly for back pressure is provided, to satisfy 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 the 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 descends, the winch brake braking, that is: brake remains " open brake-braking-open brake " like this circulating motion in emergent transferring, only in this way weight could be under Action of Gravity Field, when opening, brake transfers at a slow speed, stop during drag, only in this way the 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 when preventing that winch from normally descending) be communicated with import two and realize the winch initiatively repairing that descends, (reason of repairing: because of two-way hydraulic motor the time itself leakage is arranged, as leak oil and can not be in time initiatively replenish, then may suck a lot of gases in the self-loopa closed loop, winch running may be very unstable like this, even the danger such as coaster can occur) and form certain back pressure and be used for opening brake.System unload and make the winch running stable when first throttle valve and check valve prevent that winch from normally descending.
As preferably, be provided with the second flow regulating valve between described release HP end and the leakage hole; 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 when not pressurizeing, otherwise may affect resetting of the normally closed bi-bit bi-pass change-over valve of hydraulic control because of back pressure, cause the winch brake loop directly to be communicated with oil return line, i.e. winch brake will become braking by opening; When the hydraulic hand-pump average rate is slowly pressurizeed, the drg of winch is in out one always and closes mutual alternating state, and under action of gravitation, winch will slowly steadily be transferred, can not open because of winch brake and cause weight to be transferred fast, even the complete dangerous situation generation that waits out of control.The second flow regulating valve has prevented that HP from allowing this circuit pressure reveal when not pressurizeing, do not affect resetting of the normally closed bi-bit bi-pass change-over valve of hydraulic control.
As preferably, be provided with the 3rd flow regulating valve between main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of described hydraulic control and the import one; 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 the 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 with release HP and is connected.This winch is emergent transfers the module whole compact conformation, easy to operate; At hydraulic crane during because of the dead electricity hang-up, as long as hydraulic hand-pump is connected oil suction pipe to be connected with fuel tank, weight is transferred in the pressurize release that just can realize braking of direct hydraulic hand-pump, 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 the winch running stable when first throttle valve and check valve prevent that winch from normally descending.Two. system unload and make the winch running stable when first throttle valve and check valve prevent that winch from normally descending.Three. the second flow regulating valve has prevented that HP from allowing this circuit pressure reveal when not pressurizeing, do not affect resetting of the normally closed bi-bit bi-pass change-over valve of hydraulic control.Four. the 3rd flow regulating valve is realized the back pressure speed governing.Five. this winch is emergent transfers the module whole compact conformation, easy to operate; At hydraulic crane during because of the dead electricity hang-up, as long as hydraulic hand-pump is connected oil suction pipe to be connected with fuel tank, weight is transferred in the pressurize release that just can realize braking of direct hydraulic hand-pump, need not go to adjust the winch hydraulic control system of hydraulic crane again.
Description of drawings
Fig. 1 is a kind of hydraulic circuit scheme drawing of the present invention.
Among the 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 change-over valve-10 of hydraulic control, 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
The present invention is described further below in conjunction with shown in the accompanying drawing.
As shown in Figure 1: the emergent lower amplification module of a kind of winch comprises with winch 1 and has 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 described the first shuttle valve 4 are connected with import by Bidirectional balanced valve 5 and import 1 respectively and 22 are connected; 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, and the control oil outlet is connected with leakage hole 23; The outlet of described the first 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.
Have first throttle valve 12 and check valve 13 between another main hydraulic fluid port of described release HP end 11 and the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control; 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.
Has the second flow regulating valve 14 between described release HP end 11 and the leakage hole 23; Described release HP end 11 is connected with leakage hole 23 by the second flow regulating valve 14.
Has the 3rd flow regulating valve 15 between main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve 10 of described hydraulic control and the import 1; 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 need not creative work based on prior art and just can realize.
When the emergent lower amplification module of this winch uses:
During the hydraulic crane normal operation, normal winch 1 hoists: pressure oil enters from the B1 end, through Bidirectional balanced valve 5, one the tunnel arrives the import 1 of two-way hydraulic motor 2, one the 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 about 5Mpa, prolong the brake period of service and prolong the sealing time, prevent that simultaneously winch 1 from causing brake oil cylinder 3 pressure excessive because of superpressure, cause winch 1 to damage, that is: prolong the normal service life of winch 1, also increase simultaneously the range of use of winch 1 pressure, 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 the two position three way directional control valve commutation and is opened winch 1 brake, winch 1 just can hoist like this, and winch 1 is braked fully when not working.
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 one 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, opens brake through brake oil cylinder 3; 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 formation 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's repairing, so first throttle valve 12 is exactly for back pressure is provided, to satisfy the needs of system pressure) and 13 effects of check valve 13(check valve: system unload when preventing winch 1 normal decline) be communicated with the 1 initiatively repairing of decline of realization winch with import 2 22, (reason of repairing: because of two-way two-way hydraulic motor 22 the time itself leakage is arranged, as leak oil and can not be in time initiatively replenish, then may suck a lot of gases in the self-loopa closed loop, winch 1 running may be very unstable like this, even the danger such as coaster can occur) and form certain back pressure and be used 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 when not pressurizeing, otherwise may affect resetting of the normally closed bi-bit bi-pass change-over valve 10 of hydraulic control because of back pressure, cause winch 1 brake circuits directly to be 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 in out one always and closes mutual alternating state, and under action of gravitation, winch 1 will slowly steadily be transferred, can not open because of winch 1 brake and cause weight to be transferred fast, even the complete dangerous situation generation that waits out of control.
The 3rd flow regulating valve 15 is realized the back pressure speed governing.
This winch is emergent transfers the module whole compact conformation, easy to operate; At hydraulic crane during because of the dead electricity hang-up, as long as hydraulic hand-pump 9 is connected oil suction pipe to be connected with fuel tank, weight is transferred in the pressurize release that just can realize braking of direct hydraulic hand-pump 9, 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 at a lot of hydraulic cranes, and obtains good effect.
The invention has the beneficial effects as follows: system unload and make the winch running stable when first throttle valve and check valve prevent that winch from normally descending.System unload and make the winch running stable when first throttle valve and check valve prevent that winch from normally descending.The second flow regulating valve has prevented that HP from allowing this circuit pressure reveal when not pressurizeing, do not affect resetting of the normally closed bi-bit bi-pass change-over valve of hydraulic control.The 3rd flow regulating valve is realized the back pressure speed governing.This winch is emergent transfers the module whole compact conformation, easy to operate; At hydraulic crane during because of the dead electricity hang-up, as long as hydraulic hand-pump is connected oil suction pipe to be connected with fuel tank, weight is transferred in the pressurize release that just can realize braking of direct hydraulic hand-pump, 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.The apparent modification of the technical personnel to described field that all are such will be included within the scope of this claim.
Claims (5)
1. the emergent lower amplification module of a 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 by Bidirectional balanced valve and import one respectively and are connected; 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, and the control oil outlet is connected with leakage hole; The outlet of described the first 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: be provided with first throttle valve and check valve between another main hydraulic fluid port of described release HP end and the normally closed bi-bit bi-pass change-over valve of hydraulic control; The import of described check valve is connected with release HP end, and the outlet of check valve is connected with import two by the first throttle valve.
3. the emergent lower amplification module of winch according to claim 1 and 2 is characterized in that: be provided with the second flow regulating valve between described release HP end and the leakage hole; 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: be provided with the 3rd flow regulating valve between main hydraulic fluid port of the normally closed bi-bit bi-pass change-over valve of described hydraulic control and the import one; 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. amplification module under winch according to claim 1 and 2 is met an urgent need 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350480.5A CN102910550B (en) | 2012-09-20 | 2012-09-20 | Winch emergency pay-off module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350480.5A CN102910550B (en) | 2012-09-20 | 2012-09-20 | Winch emergency pay-off module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102910550A true CN102910550A (en) | 2013-02-06 |
| CN102910550B CN102910550B (en) | 2014-09-10 |
Family
ID=47609161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210350480.5A Active CN102910550B (en) | 2012-09-20 | 2012-09-20 | Winch emergency pay-off module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102910550B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486094A (en) * | 2013-10-12 | 2014-01-01 | 徐州重型机械有限公司 | Crane and winch motor hydraulic control system thereof |
| CN103742474A (en) * | 2014-01-07 | 2014-04-23 | 中联重科股份有限公司 | Tower crane, tower crane hoist system and hydraulic station |
| CN105460819A (en) * | 2015-10-30 | 2016-04-06 | 徐州重型机械有限公司 | Winch emergency landing control system and aerial ladder fire truck using same |
| CN105570214A (en) * | 2016-03-17 | 2016-05-11 | 上海振华重工(集团)股份有限公司 | Emergency descent valve bank |
| CN105692454A (en) * | 2016-04-14 | 2016-06-22 | 徐州重型机械有限公司 | Winch control system and crane |
| CN105971954A (en) * | 2016-07-28 | 2016-09-28 | 安徽环球传动科技有限公司 | Method for effectively guaranteeing normal braking of hydraulic motor drive |
| CN111362170A (en) * | 2020-03-31 | 2020-07-03 | 三一海洋重工有限公司 | Control method and device for hanger cable reel and crane |
| CN113148884A (en) * | 2021-04-20 | 2021-07-23 | 徐州重型机械有限公司 | Emergency power device and crane winch emergency hydraulic control system |
| CN113998607A (en) * | 2021-11-09 | 2022-02-01 | 中船华南船舶机械有限公司 | Winch-controlled hydraulic system |
| CN114212719A (en) * | 2021-11-29 | 2022-03-22 | 中船华南船舶机械有限公司 | Control method for protecting hydraulic system of 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 |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486094A (en) * | 2013-10-12 | 2014-01-01 | 徐州重型机械有限公司 | Crane and winch motor hydraulic control system thereof |
| CN103486094B (en) * | 2013-10-12 | 2016-08-24 | 徐州重型机械有限公司 | A kind of crane and winch motor hydraulic control system thereof |
| CN103742474A (en) * | 2014-01-07 | 2014-04-23 | 中联重科股份有限公司 | Tower crane, tower crane hoist system and hydraulic station |
| CN105460819A (en) * | 2015-10-30 | 2016-04-06 | 徐州重型机械有限公司 | Winch emergency landing control system and aerial ladder fire truck using same |
| CN105570214A (en) * | 2016-03-17 | 2016-05-11 | 上海振华重工(集团)股份有限公司 | Emergency descent valve bank |
| CN105692454A (en) * | 2016-04-14 | 2016-06-22 | 徐州重型机械有限公司 | Winch control system and crane |
| CN105971954A (en) * | 2016-07-28 | 2016-09-28 | 安徽环球传动科技有限公司 | Method for effectively guaranteeing normal braking of hydraulic motor drive |
| 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 |
| CN111362170A (en) * | 2020-03-31 | 2020-07-03 | 三一海洋重工有限公司 | Control method and device for hanger cable reel and crane |
| CN113148884A (en) * | 2021-04-20 | 2021-07-23 | 徐州重型机械有限公司 | Emergency power device and crane winch emergency hydraulic control system |
| 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 |
| CN113998607A (en) * | 2021-11-09 | 2022-02-01 | 中船华南船舶机械有限公司 | Winch-controlled hydraulic system |
| CN114212719A (en) * | 2021-11-29 | 2022-03-22 | 中船华南船舶机械有限公司 | Control method for protecting hydraulic system of winch |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102910550B (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202785440U (en) | Emergency lowering module for winch | |
| CN102910550B (en) | Winch emergency pay-off module | |
| CN102556872B (en) | Hydraulic rope unreeling control system, hydraulic rope reeling control system and crane | |
| CN101475130B (en) | Hydraulic time-delay double-stage braking hoister hydraulic station | |
| CN202148163U (en) | Winding emergency lowering device and crane with same | |
| CN205820780U (en) | The self-stopping anchor winch hydraulic control system of a kind of band | |
| CN202400772U (en) | Hoist device emergency descent oil circuit | |
| CN102874687B (en) | Crane and hydraulic control system for single cylinder telescopic mechanism thereof | |
| CN103613021A (en) | Winch hydraulic control system and engineering machinery | |
| CN103641023B (en) | The hydraulic control system of control cock and hoist brake, hoisting crane | |
| CN203048476U (en) | Hydraulic winch control system and engineering machinery | |
| CN203463385U (en) | Energy-saving hoisting system of hydraulic crane | |
| CN103663196B (en) | Crane and setting-up hoisting hydraulic system thereof | |
| CN203754275U (en) | Emergency release device for crane | |
| CN108584739B (en) | Emergency overload protection system and working method thereof | |
| CN202785434U (en) | Winch control device in open type hydraulic system for crane | |
| CN201825681U (en) | Crane and hydraulic control system of hoisting device thereof | |
| CN203998744U (en) | The emergency release of hoisting crane | |
| CN206232360U (en) | A kind of two-stage brake hydraulic station for distinguishing different loads operating mode | |
| CN202322167U (en) | Hydraulic hoisting machine controlling system capable of realizing free releasing of constant tension | |
| CN201580876U (en) | Hydraulic station device for mine hoister | |
| CN201756385U (en) | Power pump station used for hydraulic elevator/hydraulic lift | |
| CN103588134B (en) | Winch control device in hoisting crane open type hydraulic system | |
| CN108002268B (en) | Overload protection system and working method thereof | |
| CN202829410U (en) | Rope-releasing hydraulic control system, rope-receiving hydraulic control system and crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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. |
|
| CP03 | Change of name, title or address |