CN106144937B - Band brake hydraulic emergency system - Google Patents
Band brake hydraulic emergency system Download PDFInfo
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- CN106144937B CN106144937B CN201610671025.3A CN201610671025A CN106144937B CN 106144937 B CN106144937 B CN 106144937B CN 201610671025 A CN201610671025 A CN 201610671025A CN 106144937 B CN106144937 B CN 106144937B
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- valve
- oil
- hydraulic
- brake
- hydraulic fluid
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/10—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of band brake hydraulic emergency systems, belong to winch hydraulic system technical field, the oil inlet of hydraulic pump in the system is connected to main fuel tank, the oil inlet of three position four-way directional control valve is connected to the oil outlet of hydraulic pump, the oil return opening of three position four-way directional control valve is connected to main fuel tank, first actuator port of three position four-way directional control valve is connected to the first hydraulic fluid port of shuttle valve, second actuator port of three position four-way directional control valve is connected to the rodless cavity of brake oil cylinder, the rod chamber of brake oil cylinder is connected to the second hydraulic fluid port of shuttle valve, accumulator is connected to the third hydraulic fluid port of shuttle valve；The oil inlet of manual pump is connected to pressure oil tank, and the oil outlet of manual pump is connected to the third hydraulic fluid port of shuttle valve.The present invention improves the reliability of towing winch towage of ship, reduces the risk that traction object is lost and safety accident occurs.
Description
Technical field
The present invention relates to winch hydraulic system technical field, in particular to a kind of band brake hydraulic emergency system.
Background technique
In marine worker operation process, towing winch is one of most important equipment on workboat, it winds hawser by roller,
Act on marine ships and behaviour's anchor operation.
In the prior art, towing winch generally includes roller, and hawser is wound on roller, under the driving of exterior power,
Roller can rotate clockwise or counterclockwise, to drive the winding of hawser；Brake gear is also set up on the periphery wall of roller,
To control the rotation of roller, brake gear in the prior art is usually band brake, and the band brake is by brake oil cylinder
It is controlled, i.e., the purpose to drum braking is realized by the flexible of brake oil cylinder.
In the implementation of the present invention, it is found by the applicant that following problems exist in the prior art:
During towage of ship, if towing winch encounters the special weathers situation such as stormy waves, it will go out between towboat and towed vessel
Now with respect to the speed of a ship or plane, the pulling force that corresponding hawser is born sharply will increase or reduce, and hawser is made to be in tension or relaxed state, meeting
It is possible that jeopardizing towboat and relevant device, or even safety accident occurs.If emergency event occurs, it is more likely that can have little time
Brake oil cylinder is controlled, or because being short of power for brake oil cylinder is unable to reach to roller effective brake, causes traction object to lose, even
Cause safety accident.Therefore, it is necessary to which emergency system is arranged for such towing winch, cable is discharged or tightened when there is special status
Rope, to protect the safety of towboat and relevant device.
Summary of the invention
It is likely to occur to solve to apply the not set emergency system of the band brake in towing winch in the prior art
Situation, the embodiment of the invention provides a kind of band brake hydraulic emergency system, technical solution is as follows:
The embodiment of the invention provides a kind of band brake hydraulic emergency systems, are suitable for oil cylinder driven belt and brake
Device, the system comprises main fuel tank, pressure oil tank, hydraulic pump, brake oil cylinder, three position four-way directional control valve, shuttle valve, accumulator and hands
Dynamic pump, the hydraulic pump is for driving band brake；The oil inlet of the hydraulic pump is connected to the main fuel tank, and described three
The oil inlet of four-way reversing valve is connected to the oil outlet of the hydraulic pump, the oil return opening of the three position four-way directional control valve and the master
Fuel tank connection, the first actuator port of the three position four-way directional control valve are connected to the first hydraulic fluid port of the shuttle valve, and described three four
Second actuator port of logical reversal valve is connected to the rodless cavity of the brake oil cylinder, the rod chamber of the brake oil cylinder and the shuttle
Second hydraulic fluid port of valve is connected to, and is provided with first switch valve between the accumulator and the shuttle valve, and the two of the first switch valve
A hydraulic fluid port is connected to the third hydraulic fluid port of the accumulator and the shuttle valve respectively；The oil inlet of the manual pump and the pressure oil
Case connection, the oil outlet of the manual pump are connected to the third hydraulic fluid port of the shuttle valve；The third hydraulic fluid port of the shuttle valve (5) with it is described
Be provided between pressure oil tank (17) the first shut-off valve (11), two of first shut-off valve (11) openings respectively with the shuttle
The third hydraulic fluid port of valve (5) is connected to the pressure oil tank (17)；It is described when the rod chamber oil inlet of the brake oil cylinder (4)
Band brake provides brake holding load；When the rodless cavity oil inlet of the brake oil cylinder (4), the system of the band brake is discharged
Dynamic pulling force.
Further, the system also includes safety valve, the oil outlets of the oil inlet of the safety valve and the hydraulic pump
Connection, the oil outlet of the safety valve are connected to the main fuel tank.Safety valve can be such that the pressure of hydraulic emergency system is no more than
Permissible value, and then guarantee that because of hypertonia accident does not occur for hydraulic emergency system.
Further, the oil outlet of the hydraulic pump is provided with the first check valve.
Preferably, first pressure gauge is provided on the pipeline that the first switch valve is connected to the accumulator.
Further, second switch valve, the second switch valve are provided between the accumulator and the pressure oil tank
Two hydraulic fluid ports be connected to respectively with the accumulator with the pressure oil tank.
Preferably, the second pressure is provided on the pipeline that the oil outlet of the manual pump is connect with the third hydraulic fluid port of the shuttle valve
Power table.
Further, it is provided with second one-way valve between the oil outlet of the manual pump and the third hydraulic fluid port of the shuttle valve,
The oil inlet of the second one-way valve is connected to the oil outlet of the manual pump, the oil outlet of the second one-way valve and the shuttle
The third hydraulic fluid port of valve is connected to.
Further, it is provided with third check valve between the oil inlet of the manual pump and the pressure oil tank, described
The oil outlet of three check valves is connected to the oil inlet of the manual pump, the oil inlet and the pressure oil tank of the third check valve
Connection.
Preferably, the system also includes ventilative pipeline, the ventilative pipeline is connected to the pressure oil tank, described ventilative
The 4th check valve and the second shut-off valve are provided on pipeline, the 4th check valve and the second shut-off valve are successively far from the pressure
Fuel tank.The effect of ventilative pipeline is the external and internal pressure of balance pressure power fuel tank.
The working principle of technical solution provided in an embodiment of the present invention is:
Under normal mode: hydraulic pump startup, hydraulic oil successively the first actuator port and shuttle valve through three position four-way directional control valve
The first hydraulic fluid port and the second hydraulic fluid port, flow into the rod chamber of brake oil cylinder, the piston of brake oil cylinder pushed to retract, be belt system
Dynamic device provides brake holding load；When band brake needs to release brake holding load, second work of the hydraulic oil through three position four-way directional control valve
In the rodless cavity that hydraulic fluid port enters brake oil cylinder, the piston of brake oil cylinder is released, and discharges the brake holding load of band brake, this
When, second hydraulic fluid port and third hydraulic fluid port of the hydraulic oil through shuttle valve in the rod chamber of brake oil cylinder are flowed into accumulator, for emergency
Hydraulic oil is laid in the control of brake oil cylinder under manual mode；
Emergency manual mode:
When normal mode failure, starting emergency manual mode provides hydraulic oil by manual pump, hydraulic oil is from pressure oil
It is flowed out in case, third hydraulic fluid port and the second hydraulic fluid port through shuttle valve flow into the rod chamber of brake oil cylinder, push the work of brake oil cylinder
Plug retracts, and provides brake holding load for band brake；When band brake needs to release brake holding load, it is by hydraulic oil discharge
It can；
Emergency release mode:
When normal mode and emergency manual mode break down, when starting emergency release mode, accumulator will at this time
Hydraulic oil output, third hydraulic fluid port and the second hydraulic fluid port through shuttle valve flow into the rod chamber of brake oil cylinder, make the pressure in accumulator
Power is identical as the pressure of the rod chamber of brake oil cylinder, so that the rod chamber pressure of brake oil cylinder maintains to stablize, it is band brake system
Dynamic device provides stable remaining brake force.
In conclusion the band brake hydraulic emergency system of the embodiment of the present invention, it can be achieved that band brake unlatching
Or close, moreover it is possible to when there is burst accident, the emergency hand-operated brake of band brake is realized by manual pump, passes through accumulator
The remaining brake force for maintaining brake oil cylinder, improves the reliability of towing winch towage of ship, reduces traction object loss and safety
The risk that accident occurs.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the hydraulic schematic diagram of band brake hydraulic emergency system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of band brake provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of band brake hydraulic emergency systems, are suitable for oil cylinder driven belt and brake
Device, Fig. 1 are the hydraulic schematic diagram of the band brake hydraulic emergency system；In conjunction with Fig. 1, which includes main fuel tank 18, pressure
Fuel tank 17, hydraulic pump 1, brake oil cylinder 4, three position four-way directional control valve 3, shuttle valve 5, accumulator 6 and manual pump 9, hydraulic pump 1 is for driving
Dynamic band brake；The oil inlet of hydraulic pump 1 is connected to main fuel tank 18, oil inlet and the hydraulic pump 1 of three position four-way directional control valve 3
Oil outlet connection, the oil return opening of three position four-way directional control valve 3 are connected to main fuel tank 18, the first working oil of three position four-way directional control valve 3
Mouth is connected to the first hydraulic fluid port of shuttle valve 5, and the second actuator port of three position four-way directional control valve 3 is connected to the rodless cavity of brake oil cylinder 4,
The rod chamber of brake oil cylinder 4 is connected to the second hydraulic fluid port of shuttle valve 5, and accumulator 6 is connected to the third hydraulic fluid port of shuttle valve 5；Manual pump 9
Oil inlet is connected to pressure oil tank 17, and the oil outlet of manual pump 9 is connected to the third hydraulic fluid port of shuttle valve 5.
Hydraulic pump 1, three position four-way directional control valve 3 and the main fuel tank 18 of the embodiment of the present invention collectively form hydraulic power unit, hydraulic
Pumping plant belongs to a part of hydraulic system on ship, and hydraulic power unit can individually control opening or closing for band brake.
The embodiment of the present invention can also include safety valve 2, and the oil inlet of safety valve 2 is connected to the oil outlet of hydraulic pump 1, pacify
The oil outlet of full valve 2 is connected to main fuel tank 18.After hydraulic pump 1 starts, the spool of three position four-way directional control valve 3 is in middle position, liquid
Pressure oil cannot be flowed out by the actuator port of three position four-way directional control valve 3, pressure can be established in this way for hydraulic emergency system, if reaching
To safety valve 2 set pressure when, hydraulic oil overflow return main fuel tank 18 so that the pressure of hydraulic emergency system be no more than allow
Value, and then guarantee that because of hypertonia accident does not occur for hydraulic emergency system.
The first check valve 20 can be set in the oil outlet of hydraulic pump 1 in the embodiment of the present invention, for guaranteeing through hydraulic pump 1
The flow direction of the hydraulic oil of pumping.
There are three hydraulic fluid port, the first hydraulic fluid port and third hydraulic fluid ports to be located at both ends for the shuttle valve 5 of the embodiment of the present invention, and the second hydraulic fluid port is located at
Medium position, the first hydraulic fluid port and third hydraulic fluid port can according to the loine pressure size of corresponding connection, respectively with the second hydraulic fluid port
Connection.
Manual pump 9, accumulator 6 in the embodiment of the present invention constitute emergency unit, and manual pump 9 can realize that emergency is manually opened
With close band brake, and accumulator 6 can make brake oil cylinder 4 keep certain brake force, and be unlikely to make band brake
It fully opens.The emergency unit is totally independent of hydraulic power unit, when hydraulic power unit breaks down, it can be achieved that emergency hand-operated brake
Two functions are discharged with emergency.
It can be set first switch valve 8 between the accumulator 6 of the embodiment of the present invention and the third hydraulic fluid port of shuttle valve 5, first
Two hydraulic fluid ports of switch valve 8 are connected to the third hydraulic fluid port of accumulator 6 and shuttle valve 5 respectively, to control the of accumulator 6 and shuttle valve 5
The connection or closing of three hydraulic fluid ports.
In embodiments of the present invention, first switch valve 8 can be electromagnetic switch valve.
The embodiment of the present invention can be provided with first pressure gauge 15 on the pipeline that first switch valve 8 is connected to accumulator 6,
First pressure gauge 15 is for measuring the hydraulic fluid pressure that accumulator 6 is provided to the third hydraulic fluid port of shuttle valve 5.
The accumulator 6 of the embodiment of the present invention can be interconnected with pressure oil tank 17, can between 6 pressure oil tank 17 of accumulator
To be provided with second switch valve 7, two hydraulic fluid ports of second switch valve 7 are connected to accumulator 6 with pressure oil tank 17 respectively.Brake fluid
Hydraulic oil in the rod chamber of cylinder 4 flows into accumulator 6, and after being full of hydraulic oil in accumulator 6, extra hydraulic oil can flow
In back pressure fuel tank 17.Wherein second switch valve 7 is preferably hydraulic switching valve, when the hydraulic oil also underfill of accumulator 6, the
Two switch valves 7 are in close state；Full of after hydraulic oil in accumulator 6, second switch valve 7 can be automatically turned on, will be extra
Hydraulic oil flows back to pressure oil tank 17 by quintafurcation oil circuit f.
It can be set on the pipeline that the oil outlet of the manual pump 9 of the embodiment of the present invention is connect with the third hydraulic fluid port of shuttle valve 5
Second pressure gauge 16.The hydraulic fluid pressure provided for measuring manual pump 9 to the third hydraulic fluid port of shuttle valve 5.
It is unidirectional that the embodiment of the present invention can be set second between the oil outlet of manual pump 9 and the third hydraulic fluid port of shuttle valve 5
The oil inlet of valve 10, second one-way valve 10 is connected to the oil outlet of manual pump 9, oil outlet and the shuttle valve 5 of second one-way valve 10
Third hydraulic fluid port connection, to prevent hydraulic oil from flowing back.
The first shut-off valve 11 has can be set between the third hydraulic fluid port and pressure oil tank 17 of shuttle valve 5 in the embodiment of the present invention,
Two openings of the first shut-off valve 11 are connected to the third hydraulic fluid port of shuttle valve 5 and pressure oil tank 17 respectively.First shut-off valve 11 can be with
It opens or closes, to control the third hydraulic fluid port of shuttle valve 5 and the connection of pressure oil tank 17, has the function of pressure release oil extraction.
Third check valve 12 has can be set between the oil inlet and pressure oil tank 17 of manual pump 9 in the embodiment of the present invention,
The oil outlet of third check valve 12 is connected to the oil inlet of manual pump 9, and the oil inlet and pressure oil tank 17 of third check valve 12 connect
It is logical, to prevent hydraulic oil from flowing back.
In addition, the embodiment of the present invention can also include ventilative pipeline 19, ventilative pipeline is connected to pressure oil tank 17, permeability cell
Road is provided with the 4th check valve 14 and the second shut-off valve 13, and the 4th check valve 14 and the second shut-off valve 13 are successively far from pressure oil
Case 17, to balance the external and internal pressure of pressure oil tank 17.
The band brake hydraulic emergency system of the embodiment of the present invention can be divided into Three models, respectively normal mode,
Emergency manual mode and emergency release mode.
Under normal mode: hydraulic pump 1 starts, and three position four-way directional control valve 3 is not powered, the spool of three position four-way directional control valve 3
In middle position, hydraulic emergency system establishes pressure, and subsequent three position four-way directional control valve 3 is powered, and hydraulic oil is successively changed through 3-position 4-way
It to the first actuator port of valve 3 and the first hydraulic fluid port and the second hydraulic fluid port of shuttle valve 5, flows into the rod chamber of brake oil cylinder 4, pushes
The piston of brake oil cylinder 4 retracts, and provides brake holding load for band brake；When band brake needs to release brake holding load, liquid
Pressure oil enters in the rodless cavity of brake oil cylinder 4 through the second actuator port of three position four-way directional control valve 3, the piston of brake oil cylinder 4
It releases, discharges the brake holding load of band brake, at this point, second oil of the hydraulic oil in the rod chamber of brake oil cylinder 4 through shuttle valve 5
Mouth and third hydraulic fluid port, which are flowed into accumulator 6, to be stored, hydraulic for the control deposit of the brake oil cylinder 4 under emergency manual mode
Oil；After being full of hydraulic oil in accumulator 6, second switch valve 7 can be pushed open, extra hydraulic oil will flow back to pressure oil tank 17；
Under normal mode, the first shut-off valve 11 and the second shut-off valve 13 are in close state, and first switch valve 8, which is in, to be opened
State；
Emergency manual mode:
When normal mode failure, starting emergency manual mode, the first shut-off valve 11 is closed, and provides liquid by manual pump 9
Pressure oil, hydraulic oil are flowed out from pressure oil tank 17, and third hydraulic fluid port and the second hydraulic fluid port through shuttle valve 5 flow into having for brake oil cylinder 4
In rod cavity, pushes the piston of brake oil cylinder 4 to retract, provide brake holding load for band brake, can be seen by second pressure gauge 16
Pressurized condition is examined, after reaching setting pressure, can stop pressurizeing, brake movement is represented and completes；Band brake needs
When releasing brake holding load, the first shut-off valve 11 is connected, and hydraulic oil flows into pressure oil tank 17, to lay down having for brake oil cylinder 4
Rod cavity pressure.
Emergency release mode: when normal mode and emergency manual mode break down, need to start emergency release mould
When formula, the first shut-off valve 11 is closed, and first switch valve 8 is connected, and accumulator 6 starts, and passes through the third hydraulic fluid port of shuttle valve 5 and the second oil
Mouthful, hydraulic oil is conveyed to the rod chamber of brake oil cylinder 4, pressurized condition can be observed by first pressure gauge 15, when in accumulator 6
When pressure is identical as the pressure of the rod chamber of brake oil cylinder 4, stop pressurization, so that the rod chamber pressure of brake oil cylinder 4 remains steady
It is fixed, stable remaining brake force is provided for band brake brake.
Under release mode of meeting an urgent need, the second shut-off valve 13 is connected, to balance the external and internal pressure of pressure oil tank 17.
The band brake hydraulic emergency system of the embodiment of the present invention is gone back, it can be achieved that opening or closing for band brake
The emergency hand-operated brake of band brake can be realized by manual pump when there is burst accident, maintain to brake by accumulator
The remaining brake force of oil cylinder, improves the reliability of towing winch towage of ship, reduces traction object loss and safety accident occurs
Risk.
For more clearly illustrate that band brake hydraulic emergency systematic difference occasion, the embodiment of the present invention illustrate
A kind of form of applicable band brake, but it is not limited to this kind of form.
Fig. 2 is the structural schematic diagram of band brake provided in an embodiment of the present invention.In conjunction with Fig. 2, the embodiment of the present invention
Band brake includes first brake band 28, the second brake ribbon 21, first connecting rod 22, second connecting rod 23, triangular coupling rod 24, supports
One end of connecting rod 25 and brake oil cylinder 4, one end of first brake band 28 and the second brake ribbon 21 is hinged, first brake band 28 and
Two brake ribbons 21 are encircled on the outer peripheral surface of roller, and the other end of first brake band 28 is provided with the first connection otic placode 26, and second
The other end of brake ribbon 21 is provided with the second connection otic placode 27, wherein the first connection otic placode 26 and one end of first connecting rod 22 are cut with scissors
It connects；Triangular coupling rod 24 has first end point, the second endpoint and third endpoint, the first end point and first connecting rod 22 of triangular coupling rod 24
The other end it is hinged, the second endpoint of triangular coupling rod 24 and the second connection otic placode 27 are hinged, the second connection otic placode 27 and the second company
23 one end of bar is hinged, the hinge joint and the second connection otic placode 27 of the second endpoint of triangular coupling rod 24 and the second connection otic placode 27 and
The hinge joint of two connecting rods 23 is in same point, and 23 other end of second connecting rod and the support connecting rod 25 being fixed on the rack are hinged；And
The third endpoint and the telescopic end for the brake oil cylinder 4 being fixed on the rack of triangular coupling rod 24 are hinged.
The braking process of above-mentioned band brake are as follows:
When the telescopic end of brake oil cylinder 4 is shunk, triangular coupling rod 24 will be rotated clockwise around its second endpoint, and be stretched
First connecting rod 22, and then first brake band 28 is tensed, brake force is provided for roller；When the elongation of the telescopic end of brake oil cylinder 4, three
Angle connecting rod 24 will be rotated counterclockwise around its second endpoint, loosen first connecting rod 22, and then loosen upper brake ribbon 19, unclamp rolling
Cylinder.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of band brake hydraulic emergency system is suitable for oil cylinder driven band brake, which is characterized in that the system
System includes main fuel tank (18), pressure oil tank (17), hydraulic pump (1), brake oil cylinder (4), three position four-way directional control valve (3), shuttle valve
(5), accumulator (6) and manual pump (9), the hydraulic pump (1) is for driving band brake；The oil inlet of the hydraulic pump (1)
Mouth is connected to the main fuel tank (18), and the oil inlet of the three position four-way directional control valve (3) and the oil outlet of the hydraulic pump (1) connect
Logical, the oil return opening of the three position four-way directional control valve (3) is connected to the main fuel tank (18), the three position four-way directional control valve (3)
First actuator port is connected to the first hydraulic fluid port of the shuttle valve (5), the second actuator port of the three position four-way directional control valve (3) with
The rodless cavity of the brake oil cylinder (4) is connected to, and the rod chamber of the brake oil cylinder (4) and the second hydraulic fluid port of the shuttle valve (5) connect
It is logical, it is provided between the accumulator (6) and the third hydraulic fluid port of the shuttle valve (5) first switch valve (8), the first switch valve
(8) two hydraulic fluid ports are connected to the third hydraulic fluid port of the accumulator (6) and the shuttle valve (5) respectively；The manual pump (9) into
Hydraulic fluid port is connected to the pressure oil tank (17), and the oil outlet of the manual pump (9) is connected to the third hydraulic fluid port of the shuttle valve (5)；
It is provided with the first shut-off valve (11) between the third hydraulic fluid port and the pressure oil tank (17) of the shuttle valve (5), first cut-off
Two openings of valve (11) are connected to the third hydraulic fluid port of the shuttle valve (5) and the pressure oil tank (17) respectively；When the brake
When the rod chamber oil inlet of oil cylinder (4), brake holding load is provided for the band brake；When the rodless cavity of the brake oil cylinder (4)
When oil inlet, the brake holding load of the band brake is discharged.
2. band brake hydraulic emergency system according to claim 1, which is characterized in that the system also includes safety
The oil inlet of valve (2), the safety valve (2) is connected to the oil outlet of the hydraulic pump (1), the oil outlet of the safety valve (2)
It is connected to the main fuel tank (18).
3. band brake hydraulic emergency system according to claim 1 or 2, which is characterized in that the hydraulic pump (1)
Oil outlet is provided with the first check valve (20).
4. band brake hydraulic emergency system according to claim 3, which is characterized in that the first switch valve (8)
First pressure gauge (15) are provided on the pipeline being connected to the accumulator (6).
5. band brake hydraulic emergency system according to claim 1 or 2, which is characterized in that the accumulator (6) with
Be provided with second switch valve (7) between the pressure oil tank (17), two hydraulic fluid ports of the second switch valve (7) respectively with it is described
Accumulator (6) is connected to the pressure oil tank (17).
6. band brake hydraulic emergency system according to claim 1 or 2, which is characterized in that the manual pump (9)
Second pressure gauge (16) are provided on the pipeline that oil outlet is connect with the third hydraulic fluid port of the shuttle valve (5).
7. band brake hydraulic emergency system according to claim 1 or 2, which is characterized in that the manual pump (9)
Be provided between oil outlet and the third hydraulic fluid port of the shuttle valve (5) second one-way valve (10), the second one-way valve (10) into
Hydraulic fluid port is connected to the oil outlet of the manual pump (9), the oil outlet of the second one-way valve (10) and the third of the shuttle valve (5)
Hydraulic fluid port connection.
8. band brake hydraulic emergency system according to claim 1 or 2, which is characterized in that the manual pump (9)
Be provided between oil inlet and the pressure oil tank (17) third check valve (12), the oil outlet of the third check valve (12) with
The oil inlet of the manual pump (9) is connected to, and the oil inlet of the third check valve (12) is connected to the pressure oil tank (17).
9. band brake hydraulic emergency system according to claim 1 or 2, which is characterized in that the system also includes
Ventilative pipeline (19), the ventilative pipeline are connected to the pressure oil tank (17), and it is unidirectional that the permeability cell road is provided with the 4th
Valve (14) and the second shut-off valve (13), the 4th check valve (14) and second shut-off valve (13) are successively far from the pressure
Fuel tank (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610671025.3A CN106144937B (en) | 2016-08-16 | 2016-08-16 | Band brake hydraulic emergency system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610671025.3A CN106144937B (en) | 2016-08-16 | 2016-08-16 | Band brake hydraulic emergency system |
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| Publication Number | Publication Date |
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| CN106144937A CN106144937A (en) | 2016-11-23 |
| CN106144937B true CN106144937B (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610671025.3A Active CN106144937B (en) | 2016-08-16 | 2016-08-16 | Band brake hydraulic emergency system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739001B (en) * | 2017-12-01 | 2024-04-09 | 江西工埠机械有限责任公司 | Novel safety emergency hydraulic brake |
| CN108561466B (en) * | 2018-05-07 | 2024-01-26 | 宁夏天地奔牛实业集团有限公司 | Clutch and brake chain tightening device applicable to power part of coal mine underground scraper conveyor |
| CN109292630A (en) * | 2018-10-26 | 2019-02-01 | 中船华南船舶机械有限公司 | A kind of crane hydraulic system and working method |
| CN115180547B (en) * | 2022-06-08 | 2024-03-22 | 武汉船用机械有限责任公司 | Hydraulic control system for winch |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004056418B4 (en) * | 2004-11-23 | 2013-02-28 | Deere & Company | Hydraulic arrangement |
| 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 |
| CN203754325U (en) * | 2014-01-20 | 2014-08-06 | 武汉船用机械有限责任公司 | Safety protection device for winch |
| CN104019070B (en) * | 2014-06-06 | 2017-01-18 | 山东科大机电科技股份有限公司 | Pressure-maintaining hydraulic system with multistage braking function |
| CN204020862U (en) * | 2014-07-02 | 2014-12-17 | 徐工集团工程机械股份有限公司 | Electric transmission articulated truck brake system |
| CN205010214U (en) * | 2015-08-12 | 2016-02-03 | 中冶宝钢技术服务有限公司 | A hydraulic pressure braking system for embracing tank car |
| CN205419646U (en) * | 2016-03-16 | 2016-08-03 | 北京普世科石油机械新技术有限公司 | Integration braking system |
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2016
- 2016-08-16 CN CN201610671025.3A patent/CN106144937B/en active Active
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