CN107572438B - A kind of winch hydraulic control system assisting vehicle climb and fall - Google Patents
A kind of winch hydraulic control system assisting vehicle climb and fall Download PDFInfo
- Publication number
- CN107572438B CN107572438B CN201710661123.3A CN201710661123A CN107572438B CN 107572438 B CN107572438 B CN 107572438B CN 201710661123 A CN201710661123 A CN 201710661123A CN 107572438 B CN107572438 B CN 107572438B
- Authority
- CN
- China
- Prior art keywords
- valve
- winch
- actuator port
- motor
- mode
- 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.)
- Active
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The invention belongs to the technical fields of underground coal mine pulling winch, are a kind of winch hydraulic control systems for assisting vehicle climb and fall, solve the problem of complicated for operation when existing underground coal mine towing vehicle, low efficiency, poor safety performance.The present invention includes constant pressure variable displacement pump, gear pump, gear pump relief valve, radiator, heat exchange valve, load balance valve, short-circuit reversal valve, winch reversal valve, Fill valve, Fill valve, overload relief valve, overload relief valve, secondary variable motor, retarder, brake and hydraulic oil container.The present invention realizes four kinds of winch folding and unfolding modes by the characteristic of constant pressure variable displacement pump and the logic function of control valve.The present invention makes rope be in tensioning state always, and pulling force is adjustable when pulling vehicle climb and fall, solves winch and the matching problem for being pulled vehicle, velocity-stabilization, and pulling force is stablized, and safe operation process is convenient.
Description
Technical field
The invention belongs to the technical fields of underground coal mine pulling winch hydraulic control, are a kind of strands for assisting vehicle climb and fall
Vehicle hydraulic control system.
Background technique
Coal mine equipment steps up, and the type of assistant conveyance is also increasing.It is, in general, that mining assistant conveyance side
The determination of formula and the selection of device type, should comprehensively consider geological condition of coal mine, condition of coal seam occurrence, mining method and digger
The factors such as tool degree, mine capacity, adapt to each other, form organic whole.By the difference for being laid with track, coal mine
Lower assistant conveyance mode can be divided into rail transport, monorail crane transport, flexible transport and four kinds of overhead manned equipment, many modernizations
Large-scale mine use flexible transport mode substantially, flexible transport can integrally carry underground equipment, high-efficient, efficient and convenient,
But road pavement requirement is relatively high, smooth, hardening is answered on bottom plate road surface and ruling grade≤14 degree or even some heavy type transport vehicles are wanted
Ask the gradient≤12 degree.
When mine is greater than the case where vehicle safety is run for seam inclination at present, main tunnel or face layout form will
It can change, the mode of detouring can be taken when the gradient is big, but due to the dual-pressure of cost and time, many mines are in the gradient
Upper setting winch carrys out ancillary equipment and is transported, and current method is, by taking bracket carrier transport support as an example, bracket carrier
During upward slope, bracket carrier is carried using winch rope counterweight and carries out traction auxiliary upward slope, a people operates strand on slope
Vehicle, a people drive to go up a slope on bracket carrier, and winch and bracket carrier are all providing power, the power of bracket carrier
It generally can directly go up a slope, the power of winch is being used as auxiliary and safety measure, and two people's operating process are generally without information gap
It is logical, often there is bracket carrier and advance fastly, winch rope closing is slow, and rope is caused to mop floor, and wears rope, can not equally play auxiliary
It helps and safety effect, winch rope closing is fast, and until winch tensioned state, bracket carrier is suddenly by the auxiliary force of winch, to branch
The stability of shelf for conveying vehicle also has certain impact；Bracket carrier carries bracket using winch rope counterweight and removes during descending
Fortune vehicle carries out traction auxiliary descending, and equally, a people operates winch on slope, and a people drives to go up a slope on bracket carrier,
The braking uniform velocity stabilising arrangement using oneself of bracket carrier is directly lower broken, and the power of winch is existed as anti-towing tension
, same to use as auxiliary and safety measure, during descending, it is too slow that drumman puts rope, will affect descending efficiency, puts
It restricts too fast, rope can be made to mop floor, cause rope wear, and in rope re-tensioning, be mainly that wirerope rushes to rope
Hitting power can be very big, on the one hand causes the unstable of descending vehicle, and on the other hand, steel wire cable can be broken, disconnected steel wire cable
Impact force will cause the damage of tunnel equipment, or even threaten the personal safety of personnel.
Above-mentioned phenomena impair coal mine normally produces, and causes any property loss, or even can cause casualties.
Summary of the invention
During the present invention is in order to solve existing underground coal mine winch towing vehicle climb and fall, complicated for operation, low efficiency, peace
The problem of full performance difference provides a kind of winch hydraulic control system for assisting vehicle climb and fall.
The present invention adopts the following technical scheme that realization:
A kind of winch hydraulic control system assisting vehicle climb and fall, including constant pressure variable displacement pump, gear pump, gear pump safety
Valve, radiator, heat exchange valve, load balance valve, short-circuit reversal valve, winch reversal valve, Fill valve, Fill valve, overload
Valve, overload relief valve, secondary variable motor, retarder, brake and hydraulic oil container；
The heat exchange valve is the flushing valve with relief valve；
Load balance valve includes the check valve and sequence valve being connected in parallel；
Short-circuit reversal valve is manual 2/2-way reversal valve；
Winch reversal valve is hand-operated three-position；
Fill valveAnd Fill valveFor check valve；
Constant pressure variable displacement pump is connected to by motor driven, the drain tap L1 of constant pressure variable displacement pump with hydraulic oil container, constant pressure variable displacement pump
Oil discharge outlet B1 connect with the oil inlet F1 of winch reversal valve, the oil return opening L4 of winch reversal valve directly returns hydraulic oil container, winch
The actuator port of reversal valveThe actuator port of F2 and secondary variable motorM2 is connected, the working oil of winch reversal valve
MouthfulF3 passes through the actuator port of load balance valveP1 and actuator portThe actuator port of P2 and secondary variable motor
M1 is connected；Overload relief valveActuator portThe actuator port of A1 and secondary variable motorM2 is connected, overload peace
Full valveActuator portThe actuator port of A2 and secondary variable motorM1 connection；Overload relief valveActuator port
The actuator port of A3 and secondary variable motorM2 is connected, overload relief valveActuator portA4 and secondary variable horse
The actuator port reachedM1 connection；The actuator port of short-circuit reversal valveThe actuator port of P3 and load balance valveP1 connection,
The actuator port of short-circuit reversal valveThe actuator port of P4 and load balance valveP2 connection；Gear pump is installed to constant-pressure variable
Below, the inlet port L2 of gear pump is from hydraulic oil container oil suction, the pressure port B2 connection Fill valve of gear pump for pumpAnd Fill valve)
Oil inlet, Fill valveOil outlet and secondary variable motor actuator portM2 connection, Fill valveOil outlet with
The actuator port of secondary variable motorM1 connection；The working hole of heat exchange valveThe actuator port of R1 and secondary variable motor
M1 connection, the working hole of heat exchange valveThe actuator port of R2 and secondary variable motorM2 connection, the draining of heat exchange valve
The oil inlet S connection of mouth R3 and radiator；The drain tap L3 of radiator is connected to fuel tank.
The present invention realizes four kinds of winch folding and unfolding modes by the characteristic of constant pressure variable displacement pump and the logic function of control valve.
The first mode: for control winch reversal valve at 1, winch pulls towed vehicle to go up a slope, and tensions constant, speed follower is pulled a cart
?.Second of mode: for control winch reversal valve at 2, vehicle pulls winch rope descending, and pulling force is controlled by load balance valve.
The third mode: control winch reversal valve presses short-circuit reversal valve, winch rope can freely dragging at 2.4th kind of mode:
Winch reversal valve is controlled at 3, winch puts rope.Switch four kinds of operating modes according to actual condition to reach on quickly pulling vehicle
The purpose of descending.
The present invention has the following beneficial effects: the logic of characteristic and control valve by constant pressure variable displacement pump compared with the prior art
Function collective effect realizes winch and pulls vehicle driving up, the operating mode for assisting vehicle descending and rope freely dragging and put
The miscellaneous functions such as rope.Under the operating mode that winch pulls vehicle driving up, the pressure for being utilized constant pressure variable displacement pump is constant, flow
The characteristic changed with loading demand, and realize what winch tensions constant speed followed automatically by the logic function of control valve
Purpose；It ensure that the safety of operator and equipment.Winch pulls the operating mode of vehicle descending to be suitable for auxiliary vehicle descending
Operating condition, constant force is adjusted by rope moment tensioning state and according to the load weight of vehicle, on winch pulling force and slope
Driving vehicle partical gravity balances each other, and keeps vehicle driving as though walking upon flat ground on slope, improves the safety of production, simplifies operation
Process facilitates the operation of driver.And there are rope freely dragging and winch to put two kinds of auxiliary modes of rope.
Detailed description of the invention
Fig. 1 is hydraulic schematic diagram of the invention,
In figure: 1- constant pressure variable displacement pump, 2- gear pump, 3- gear pump relief valve, 4- radiator, 5- heat exchange valve,
6- load balance valve, 7- short circuit reversal valve, 8- winch reversal valve, 9- Fill valve, 10- Fill valve, 11- overload peace
Full valve, 12- overload relief valve, 13- secondary variable motor, 14- retarder, 15- brake, 16- relief valve, 17-
Hydraulic oil container, the drain tap of L1- constant pressure variable displacement pump, the oil discharge outlet of B1- constant pressure variable displacement pump, the oil inlet of F1- winch reversal valve
Mouthful, the oil return opening of L4- winch reversal valve, the actuator port of F2- winch reversal valve, the actuator port of F3- winch reversal valve, the actuator port of M1- secondary variable motor, the actuator port of M2- secondary variable motor, A1- overload relief valveWork
Make hydraulic fluid port, A2- overload relief valveActuator port, A3- overload relief valveActuator port, A4- overload relief valveActuator port, the actuator port of P3- short circuit reversal valve, the actuator port of P4- short circuit reversal valve, P1- loads flat
The actuator port of weighing apparatus valve, the actuator port of P2- load balance valve, the oil return opening of L2- gear pump, B2- pressure port, R1- heat
The working hole of crossover valve, the working hole of R2- heat exchange valve, the drain tap of R3- heat exchange valve, the oil inlet of S- radiator
Mouthful, the drain tap of L3- radiator.
Specific embodiment
In conjunction with attached drawing, specific embodiments of the present invention will be further explained.
As shown in Figure 1, a kind of hydraulic control of winch that there is constant force folding and unfolding and speed follows automatically of auxiliary vehicle climb and fall
System processed, including it is constant pressure variable displacement pump 1, gear pump 2, gear pump relief valve 3, radiator 4, heat exchange valve 5, load balance valve 6, short
Way reversing valve 7, winch reversal valve 8, Fill valve9, Fill valve10, overload relief valve11, overload relief valve12, two
Grade variable displacement motor 13, retarder 14, brake 15, the relief valve 16 in heat exchange valve, hydraulic oil container 17.
The heat exchange valve 5 is the flushing valve with relief valve 16；
Load balance valve 6 includes the check valve and sequence valve being connected in parallel；
Short-circuit reversal valve 7 is manual 2/2-way reversal valve；
Winch reversal valve 8 is hand-operated three-position；
Fill valve9 and Fill valve10 be check valve；
Constant pressure variable displacement pump 1 is connected to by motor driven, the drain tap L1 of constant pressure variable displacement pump with hydraulic oil container 17, constant-pressure variable
The oil discharge outlet B1 of pump is connect with the oil inlet F1 of winch reversal valve, and the oil return opening L4 of winch reversal valve directly returns hydraulic oil container 17,
The actuator port of winch reversal valveThe actuator port of F2 and secondary variable motorM2 is connected, the work of winch reversal valve
Make hydraulic fluid portF3 passes through the actuator port of load balance valveP1 and actuator portThe working oil of P2 and secondary variable motor
MouthfulM1 is connected；Overload relief valveActuator portThe actuator port of A1 and secondary variable motorM2 is connected, mistake
Carry safety valveActuator portThe actuator port of A2 and secondary variable motorM1 connection；Overload relief valveWorking oil
MouthfulThe actuator port of A3 and secondary variable motorM2 is connected, overload relief valveActuator portA4 and second level become
Measure the actuator port of motorM1 connection；The actuator port of short-circuit reversal valveThe actuator port of P3 and load balance valveP1 connects
It connects, the actuator port of short-circuit reversal valveThe actuator port of P4 and load balance valveP2 connection；Gear pump 2 is installed to constant pressure
Behind variable pump 1, the inlet port L2 of gear pump is from 17 oil suction of hydraulic oil container, the pressure port B2 connection Fill valve of gear pump9 and mend
Oil valve10 oil inlet, Fill valve9 oil outlet and the actuator port of secondary variable motorM2 connection, Fill valve
10 oil outlet and the actuator port of secondary variable motorM1 connection；The working hole of heat exchange valveR1 and secondary variable motor
Actuator portM1 connection, the working hole of heat exchange valveThe actuator port of R2 and secondary variable motorM2 connection, heat are handed over
Change the oil inlet S connection of the drain tap R3 and radiator of valve；The drain tap L3 of radiator is connected to fuel tank.
The course of work of the present invention is as follows:
The first mode pulls vehicle driving up mode: rope is mounted on towed vehicle suitable position, first to braking
One control pressure of K1 mouth of device 15 is unlocked to brake 15, then controls winch reversal valve 8 at 1, hydraulic oil passes through constant pressure
Variable pump generates constant pressure, and by winch reversal valve 8, the check valve of load balance valve 6 reaches secondary variable motor 13, due to
Motor displacement is constant, and pressure is constant, and being applied in towed vehicle is also constant pulling force, passes through winch by the hydraulic oil of motor
Reversal valve 8 returns to hydraulic oil container 17, while towed vehicle is voluntarily gone up a slope, since constant-pressure variable pump discharge changes with needed for load
Characteristic, winch speed is consistent with towed vehicle always, pull vehicle driving up mode have two-stage pulling force stablize protection, the first order
It is the constant pressure setting of constant pressure variable displacement pump 1, the second level is the pressure setting of overload relief valve 12.
Second of mode assists vehicle descending mode: rope is mounted on towed vehicle suitable position, first to braking
One control pressure of K1 mouth of device 15 is unlocked to brake 15, then controls winch reversal valve 8 at 2, and according to descending vehicle
Load set up the setting pressure of load balance valve 6, making pulling force, just downward component is consistent on the slope with vehicle, vehicle
When to slope downward driving, secondary variable motor 13 is pump condition, and hydraulic oil flows through load balance valve by secondary variable motor 12
6, winch reversal valve 8 reaches the motor other side, forms descending hydraulic main circuit, and auxiliary vehicle descending mode has two-stage pulling force to stablize
Protection, the first order are to load the pressure setting of safety valve 12, and the second level is the pressure setting of overload relief valve 11, additionally, due to master
The hydraulic fever and leakage in circuit, the invention carry out heat dissipation and repairing to 2 system of system matches gear pump, and gear pump 2 is installed
Constant pressure variable displacement pump 1 after, from fuel tank oil suction, then pass through Fill valve9 and Fill valve10 give the repairing of motor two sides, mend
Oil pressure is set by gear pump relief valve 3, while by heat exchange valve 5, the high temperature hydraulic oil of motor low-pressure side is connected to
The S mouth of radiator 4, cooling by radiator 4, hydraulic oil returns hydraulic oil container 17.
The third mode is rope freely dragging mode, this mode is not operating mode, is that winch maintenance rope installation makes
Auxiliary mode, running of hydraulic power oil direction and second of mode are essentially identical, only short-circuit reversal valve 7, are shorted to load
6 both ends of balanced valve, hydraulic oil are not passed through load balance valve 6, flow through from short-circuit reversal valve 7, when using this mode, control winch
Reversal valve 8 presses short-circuit reversal valve 7 at 2, so that it may manual light dragging cords.
4th kind of mode is that winch puts rope mode, this mode is also not operating mode and winch maintenance rope installation
The auxiliary mode used controls winch reversal valve 8 at 3, presses short-circuit reversal valve 7, and the flow that constant pressure variable displacement pump 1 exports flows through
The oil inlet F1 and actuator port of winch reversal valveF3, the actuator port of short-circuit reversal valveP3 and actuator portP4,
Reach the actuator port of motorM1 drives motor choosing to turn, so that winch be made to put rope, by the hydraulic oil of motor from motor
Actuator portM2 mouthfuls, flow through the actuator port of winch reversal valveF2 and oil return opening L4 returns hydraulic oil container 17.
Four kinds of modes of winch control, the first, second control model are the operating mode of winch towing vehicle, complete and lead
Draw the climb and fall operating condition of vehicle, the strength when present invention solves winch auxiliary vehicle climb and fall is stable to ask with speed stable
Topic, it is safer in distraction procedure.Third, fourth mode are the auxiliary mode that vehicle safeguards that rope is installed and used, and are convenient for failure
The back works such as investigation.
Claims (1)
1. a kind of winch hydraulic control system for assisting vehicle climb and fall, it is characterised in that: including constant pressure variable displacement pump (1), gear
Pump (2), gear pump relief valve (3), radiator (4), heat exchange valve (5), load balance valve (6), short-circuit reversal valve (7), winch
Reversal valve (8), Fill valve(9), Fill valve(10), overload relief valve(11), overload relief valve(12), secondary variable horse
Up to (13), retarder (14), brake (15) and hydraulic oil container (17)；
The heat exchange valve (5) is the flushing valve with relief valve (16)；
Load balance valve (6) includes the check valve and sequence valve being connected in parallel；
Short-circuit reversal valve (7) is manual 2/2-way reversal valve；
Winch reversal valve (8) is hand-operated three-position；
Fill valve(9) and Fill valveIt (10) is check valve；
Constant pressure variable displacement pump (1) is connected to by motor driven, the drain tap (L1) of constant pressure variable displacement pump with hydraulic oil container (17), and constant pressure becomes
The oil discharge outlet (B1) of amount pump is connect with the oil inlet (F1) of winch reversal valve, and the oil return opening (L4) of winch reversal valve directly returns hydraulic
Fuel tank (17), the actuator port of winch reversal valve(F2) with the actuator port of secondary variable motor(M2) it is connected, winch changes
To the actuator port of valve(F3) pass through the actuator port of load balance valve(P1) and actuator port(P2) and secondary variable
The actuator port of motor(M1) it is connected；Overload relief valveActuator port(A1) with the actuator port of secondary variable motor(M2) it is connected, overload relief valveActuator port(A2) with the actuator port of secondary variable motor(M1) it connects；It crosses
Carry safety valveActuator port(A3) with the actuator port of secondary variable motor(M2) it is connected, overload relief valve's
Actuator port(A4) with the actuator port of secondary variable motor(M1) it connects；The actuator port of short-circuit reversal valve(P3) and add
Carry the actuator port of balanced valve(P1) it connects, the actuator port of short-circuit reversal valve(P4) with the actuator port of load balance valve(P2) it connects；Gear pump (2) is installed to constant pressure variable displacement pump (1) below, and the inlet port (L2) of gear pump is from hydraulic oil container (17)
The pressure port (B2) of oil suction, gear pump connects Fill valve(9) and Fill valve(10) oil inlet, Fill valve(9) fuel-displaced
The actuator port of mouth and secondary variable motor(M2) it connects, Fill valve(10) work of oil outlet and secondary variable motor
Hydraulic fluid port(M1) it connects；The working hole of heat exchange valve(R1) with the actuator port of secondary variable motor(M1) it connects, heat exchange valve
Working hole(R2) with the actuator port of secondary variable motor(M2) it connects, the drain tap (R3) and radiator of heat exchange valve
Oil inlet (S) connection；The drain tap (L3) of radiator is connected to fuel tank,
Realize four kinds of winch folding and unfolding modes:
The first mode pulls vehicle driving up mode: rope is mounted on towed vehicle suitable position, gives brake first
(15) one control pressure of K1 mouth is unlocked to brake (15), then controls winch reversal valve (8) at 1, hydraulic oil passes through
Constant pressure variable displacement pump generates constant pressure, and by winch reversal valve (8), the check valve of load balance valve (6) reaches secondary variable horse
Up to (13), since motor displacement is constant, pressure is constant, and being applied in towed vehicle is also constant pulling force, by the liquid of motor
Pressure oil returns to hydraulic oil container (17) by winch reversal valve (8), while towed vehicle is voluntarily gone up a slope, due to constant-pressure variable pump discharge
With the characteristic changed needed for load, winch speed is consistent with towed vehicle always, and vehicle driving up mode is pulled to have two-stage drawing
Power stablizes protection, and the first order is the constant pressure setting of constant pressure variable displacement pump (1), and the second level is the pressure setting of overload relief valve (12)；
Second of mode assists vehicle descending mode: rope is mounted on towed vehicle suitable position, gives brake first
(15) one control pressure of K1 mouth is unlocked to brake (15), then controls winch reversal valve (8) at 2, and under
The setting pressure of load balance valve (6) is set up in the load of slope vehicle, make pulling force just with vehicle downward component phase on the slope
Unanimously, when vehicle is to slope downward driving, secondary variable motor (13) is pump condition, and hydraulic oil is flowed through by secondary variable motor (12)
Load balance valve (6), winch reversal valve (8) reach the motor other side, form descending hydraulic main circuit, assist vehicle descending mode
There is two-stage pulling force to stablize protection, the first order is to load the pressure setting of safety valve (12), and the second level is overload relief valve (11)
Pressure setting is radiated and is mended to system matches gear pump (2) system additionally, due to the hydraulic fever and leakage of major loop
Oil, gear pump (2) installation constant pressure variable displacement pump (1) after, from fuel tank oil suction, then pass through Fill valve(9) and Fill valve
(10) repairing of motor two sides is given, oil compensation pressure is set by gear pump relief valve (3), while by heat exchange valve (5), motor
The high temperature hydraulic oil of low-pressure side is connected to the oil inlet (S) of radiator (4), cooling by radiator (4), and hydraulic oil returns hydraulic oil
Case (17)；
The third mode is rope freely dragging mode, this mode is not operating mode, is that winch maintenance rope is installed and used
Auxiliary mode is shorted to load balance valve (6) both ends only short-circuit reversal valve (7), and hydraulic oil is not passed through load balance valve
(6), it is flowed through from short-circuit reversal valve (7), remaining hydraulic oil flow direction is identical as second of mode, when using this mode, control
Winch reversal valve (8) processed presses short-circuit reversal valve (7) at 2, so that it may manual light dragging cords；
4th kind of mode is that winch puts rope mode, this mode is also not operating mode and winch maintenance rope is installed and used
Auxiliary mode, control winch reversal valve (8) at 3, press short-circuit reversal valve (7), constant pressure variable displacement pump (1) output traffic flow
Oil inlet (F1) and actuator port through winch reversal valve(F3), the actuator port of short-circuit reversal valve(P3) and working oil
Mouthful(P4), the actuator port of motor is reached(M1), motor choosing is driven to turn, to make winch put rope, by the liquid of motor
Actuator port of the pressure oil from motor(M2), the actuator port of winch reversal valve is flowed through(F2) and oil return opening (L4) time is hydraulic
Fuel tank (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661123.3A CN107572438B (en) | 2017-08-04 | 2017-08-04 | A kind of winch hydraulic control system assisting vehicle climb and fall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661123.3A CN107572438B (en) | 2017-08-04 | 2017-08-04 | A kind of winch hydraulic control system assisting vehicle climb and fall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107572438A CN107572438A (en) | 2018-01-12 |
| CN107572438B true CN107572438B (en) | 2019-09-13 |
Family
ID=61033946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710661123.3A Active CN107572438B (en) | 2017-08-04 | 2017-08-04 | A kind of winch hydraulic control system assisting vehicle climb and fall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107572438B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508281A (en) * | 1983-08-15 | 1985-04-02 | Tse International | Hydraulic drive system for cable stringing apparatus |
| CN102153027A (en) * | 2011-04-12 | 2011-08-17 | 武汉船用机械有限责任公司 | Stepless regulation constant tension device for hydraulic winch |
| CN106241633A (en) * | 2016-08-23 | 2016-12-21 | 三峡大学 | A kind of towing winch hydraulic control system peculiar to vessel and actuating device and control method |
| CN205892595U (en) * | 2016-07-26 | 2017-01-18 | 中国葛洲坝集团电力有限责任公司 | Hill slope rail transporting system |
| CN106837906A (en) * | 2016-12-14 | 2017-06-13 | 武汉船用机械有限责任公司 | A kind of anchor capstan hydraulic control system |
-
2017
- 2017-08-04 CN CN201710661123.3A patent/CN107572438B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508281A (en) * | 1983-08-15 | 1985-04-02 | Tse International | Hydraulic drive system for cable stringing apparatus |
| CN102153027A (en) * | 2011-04-12 | 2011-08-17 | 武汉船用机械有限责任公司 | Stepless regulation constant tension device for hydraulic winch |
| CN205892595U (en) * | 2016-07-26 | 2017-01-18 | 中国葛洲坝集团电力有限责任公司 | Hill slope rail transporting system |
| CN106241633A (en) * | 2016-08-23 | 2016-12-21 | 三峡大学 | A kind of towing winch hydraulic control system peculiar to vessel and actuating device and control method |
| CN106837906A (en) * | 2016-12-14 | 2017-06-13 | 武汉船用机械有限责任公司 | A kind of anchor capstan hydraulic control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107572438A (en) | 2018-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104309608B (en) | Self-driving formula wire saws monorail crane system | |
| CN110027867A (en) | One kind can overlap swing type speedy drivage system sealing-tape machine self-movable foot end | |
| CN204984431U (en) | Tunnelling protects platform with single track cat | |
| CN202899040U (en) | Crossing tunnel box girder transporting and mounting all-in-one machine | |
| CN105174053A (en) | Monorail crane transportation system pulled by steel wire rope of hydraulic winch | |
| CN104909112A (en) | Fast replacement process for long-distance steel cord belt | |
| CN102205930A (en) | Hydraulic speed-regulation rope arranging winch | |
| CN105819335A (en) | Hoisting device of heading machine and heading machine | |
| CN107572438B (en) | A kind of winch hydraulic control system assisting vehicle climb and fall | |
| CN102373882A (en) | Separated self-propelled coal mine underground drill rig | |
| CN202391104U (en) | Portable rail slip form | |
| CN204184346U (en) | Self-driving formula wire saws monorail crane system | |
| CN218964622U (en) | Caterpillar traction hydraulic belt releasing device | |
| CN110410386B (en) | Hydraulic power lifting system of stereo bus garage | |
| CN202431184U (en) | Split self-propelled coal mine tunnel drill rig | |
| CN110725712A (en) | Integrated liquid supply system transportation device, control system thereof and integrated liquid supply equipment | |
| CN104386602A (en) | Inclined roadway trackless auxiliary transportation method and device | |
| GB809149A (en) | Improvements in or relating to hydraulic operation of overhead crane carriages | |
| CN2392757Y (en) | Steel-wire tightening apparatus for crossheading continuous traction vehicle | |
| CN202156858U (en) | Mining elevator | |
| CN107010521A (en) | A kind of mine hoisting transportation system and method | |
| CN201390521Y (en) | Rubber belt automatic control hydraulic tensioning device | |
| CN204265351U (en) | A kind of inclined gallery auxiliary trackless transport device | |
| CN207175314U (en) | SQ-1200 endless rope series tractor list rope horizontal hydraulic tensioning apparatus | |
| CN105776014B (en) | A kind of pneumatic monorail crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 030032 No.1, electronic street, Shanxi demonstration area, Taiyuan City, Shanxi Province Co-patentee after: SHANXI TIANDI COAL MINING MACHINERY Co.,Ltd. Patentee after: TAIYUAN INSTITUTE OF CHINA COAL TECHNOLOGY AND ENGINEERING Group Address before: 030006 Shanxi Province, Taiyuan city and State Road No. 108 Co-patentee before: SHANXI TIANDI COAL MINING MACHINERY Co.,Ltd. Patentee before: TAIYUAN INSTITUTE OF CHINA COAL TECHNOLOGY AND ENGINEERING Group |