CN107339487B - Gate sectionalized opening and closing method and opening and closing device thereof - Google Patents
Gate sectionalized opening and closing method and opening and closing device thereof Download PDFInfo
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- CN107339487B CN107339487B CN201710755399.8A CN201710755399A CN107339487B CN 107339487 B CN107339487 B CN 107339487B CN 201710755399 A CN201710755399 A CN 201710755399A CN 107339487 B CN107339487 B CN 107339487B
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- lifting
- opening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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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
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Barrages (AREA)
- Gates (AREA)
Abstract
The utility model discloses a gate sectionalized opening and closing method and an opening and closing device thereof, which relate to the technical field of dam lifting equipment, and comprise two sets of lifting driving mechanisms I and II which are arranged in parallel and share a lifting cable, wherein the lift of the lifting driving mechanism I is smaller than that of the lifting driving mechanism II, but the opening and closing force of the lifting driving mechanism I is larger than that of the lifting driving mechanism II; the winding drums of the lifting driving mechanisms I and II are axially arranged in parallel; a fixed pulley block is also arranged between the reels of the lifting driving mechanisms I and II, the hoisting ropes go back to the reel of the other lifting driving mechanism after being wound around the fixed pulley block and then wound around the movable pulley block through the reel of one lifting driving mechanism, the gate sectionally-opened and closed opening and closing device adopts double lifting driving mechanisms with different lifting specifications, such as common cables, lifting appliances and the like, and can aim at the opening and closing of gates with different opening and closing forces required by different lifts/openings in the opening and closing of the dam gate, and the corresponding opening and closing device has different opening and closing forces at the corresponding lifts/elevations.
Description
Technical Field
The utility model relates to the technical field of dam lifting equipment, in particular to a gate sectionalized opening and closing device and an opening and closing method thereof.
Background
Along with the continuous increase of the opening and closing lift and capacity of the hydroelectric engineering gate, the volume and the weight of the high-lift high-capacity opening and closing machine are also increased, meanwhile, the specifications and the sizes of parts such as a winding drum, a speed reducer, a brake, motor power and a frame of the opening and closing equipment are further increased under the influence of the arrangement of gate grooves, and the cost is also greatly increased; the high-lift gate with the working condition of water start and stop is greatly influenced by water pressure (orifice range), taking the opening of the gate as an example, the opening force is maximum under the action of water pressure and water pressure in the initial opening and closing stroke section (orifice range); conversely, the door is closed at the lowest section (within the range of the orifice) under the action of water pressure and water power, and the holding force is maximum; at present, the opening and closing force of the gate hoist is determined by a large value in the two, and outside the range of the orifice, the opening and closing force is only determined by the weight and the running resistance of the gate, and the value of the opening and closing force is far smaller than the opening and closing force in the range of the orifice; the high-lift gate hoist with the working condition of dynamic water hoist is characterized in that the hoist force is mainly gate weight and running friction resistance in a larger range from the upper part of an orifice to the position of a door lintel, the values of the hoist force are smaller, and the hoist force is mainly running resistance caused by large water pressure, lower suction caused by water flow and gate weight in the orifice range from the door lintel to a sill, and the hoist force is far higher than the hoist force above the door lintel; the hoisting mechanism can be optimized for this very characteristic load feature.
In the prior art, for example, the Chinese patent literature with the publication number of CN204549854U and the publication time of 2015, 8 months and 12 days, named as a crane lifting mechanism and an electric control system, discloses a crane lifting mechanism and an electric control system. The hoisting mechanism comprises two sets of reel hoisting mechanisms and two sets of auxiliary anti-swing mechanisms; the winding drum lifting mechanism comprises a lifting motor and a reduction gearbox, a plurality of rope-discharging winding drums and lifting ropes connected with a lifting appliance, wherein the output end of the lifting motor is connected with the input shaft of the reduction gearbox, the plurality of rope-discharging winding drums are arranged on the output shaft of the reduction gearbox, and the lifting ropes are wound on the plurality of rope-discharging winding drums; the auxiliary anti-swing mechanism comprises an auxiliary speed reducing braking mechanism, a pulley, a push rod, an auxiliary winding drum and an auxiliary rope connected with the lifting appliance, wherein the auxiliary speed reducing braking mechanism is arranged on the pulley, the push rod is connected with the auxiliary speed reducing braking mechanism, the auxiliary winding drum is arranged on the auxiliary speed reducing braking mechanism, the auxiliary rope is wound on the rope winding drum and the auxiliary winding drum, but the lifting forces of the two sets of lifting mechanisms of the technical scheme are mutually independent, the lifting force is not favorable for lifting force when the gate is opened, the state of opening the gate is unstable, and the structure and the cost cannot be optimized.
Disclosure of Invention
The utility model aims to provide a gate opening/closing device which adopts a double-lifting driving mechanism with different lifting specifications but common ropes, lifting appliances and the like, can realize the opening/closing of gates with different opening/closing forces according to different lift/opening requirements in the opening/closing of dam gates, and has different opening/closing forces at corresponding lifts/elevations.
The utility model aims at realizing the following technical scheme:
a gate sectional opening and closing method is characterized in that:
when the gate starts to open, the gate is positioned in a gate orifice at the bottom of the dam, an opening and closing device is arranged in the dam, and a working brake and/or a safety brake of a lifting driving mechanism II with smaller opening and closing force are locked to enable a winding drum and a load cable on the winding drum to be static and bear static load force, and a lifting driving mechanism I with larger opening and closing force starts winding, and enables the load cable to lift the gate around a fixed pulley with a movable pulley through rotation of the winding drum; the gate body is driven by the movable pulley and the hoisting cable to lift and enter a gate lifting channel in the dam, and the water pressure and the hydraulic action of the gate are gradually reduced; when the gate is completely lifted into a dam gate lifting channel, namely, the bottom edge of the gate is higher than or equal to the bottom edge of the gate lifting channel, working conditions of a lifting driving mechanism I and a lifting driving mechanism II are switched, namely, a working brake and/or a safety brake of the lifting driving mechanism I with larger opening and closing force are locked, so that a winding drum and a lifting cable on the winding drum are static and bear static load force, the lifting driving mechanism II with smaller opening and closing force starts winding, the lifting cable drives a movable pulley to continuously lift the gate around the fixed pulley through the rotation of the winding drum until the gate is opened in place, and then the lifting driving mechanism I and the lifting driving mechanism II are all locked to finish gate opening;
when the gate starts to close, the gate body of the gate is all positioned in the gate lifting channel of the dam, the lifting driving mechanism II with smaller opening and closing force is started to lower the gate, and at the moment, the working brake and/or the safety brake of the lifting driving mechanism I with larger opening and closing force are locked so that the winding drum and the load cable on the winding drum are static and only bear static load force; when the gate is lowered into the gate orifice, namely when the lower edge of the gate is lower than or equal to the position of the bottom edge of the gate lifting channel, working conditions of the lifting driving mechanism II and the lifting driving mechanism I are switched, namely, the lifting driving mechanism II with smaller opening and closing force and/or the lifting driving mechanism I with smaller opening and closing force are locked on the working brake and/or the safety brake, so that a winding drum and a lifting cable on the winding drum are static and bear static load force only, the lifting driving mechanism I with larger opening and closing force starts winding, and the lifting cable drives the movable pulley to continuously lower the gate by rotating the winding drum until the gate is lowered to the bottom.
The utility model provides a gate segmentation headstock gear which characterized in that: the lifting mechanism comprises two sets of lifting driving mechanisms I and II which are arranged in parallel and share a lifting cable, wherein the lift of the lifting driving mechanism I is smaller than that of the lifting driving mechanism II, but the opening and closing force of the lifting driving mechanism I is larger than that of the lifting driving mechanism II; the winding drums of the lifting driving mechanisms I and II are axially arranged in parallel; and a fixed pulley block is further arranged between the reels of the lifting driving mechanisms I and II, and the hoisting ropes return to the reel of the other lifting driving mechanism after being wound around the fixed pulley block and then wound around the movable pulley block through the reel of the one lifting driving mechanism.
The lifting driving mechanisms I and II comprise drivers, couplings, working brakes, speed reducers, winding drums and safety brakes, wherein the drivers drive the winding drums through the couplings, the working brakes and the speed reducers in sequence, and the safety brakes are arranged on the winding drums.
The safety brake comprises a brake clamp driven by a brake driving device and a brake pad arranged on the rotating shaft of the winding drum, wherein the outer edge of the brake pad is arranged in the middle of the brake clamp.
Lifting drive mechanism I and II all set up in same cover has the frame of compensating beam, the compensating beam is located directly over the gate and its direction is parallel with the gate top, fixed pulley group sets up on the compensating beam.
The hoisting cable is a steel wire rope, one end of the hoisting cable is arranged on a drum of one hoisting driving mechanism, the middle of the hoisting cable is wound between the movable pulley block and the fixed pulley block, the other end of the hoisting cable is arranged on a drum of the other hoisting driving mechanism, and the two drums can independently drive the animation pulley block to lift up and down through the hoisting cable.
The dam provided with the opening and closing device is also provided with a pair of induction switches which are used for inducing the position of the gate and form interlocking, and the induction switches respectively control the opening and closing of the lifting driving mechanism I and the lifting driving mechanism II; when the gate is opened, the inductive switch of the lifting driving mechanism I is controlled to be turned on, the inductive switch of the lifting driving mechanism II is controlled to be turned off, and the lifting driving mechanism I is used as a power source to drive the gate to lift; when the inductive switch senses that the edge of the bottom of the gate is lifted into the gate lifting channel, the inductive switch controlling the lifting driving mechanism II is turned on, the inductive switch controlling the lifting driving mechanism I is turned off, and the lifting driving mechanism II is used as a power source to continuously drive the gate to lift
The beneficial effects of the utility model are as follows:
1. the utility model provides a gate sectionalized opening and closing method, wherein in a travel section with large opening and closing force, a large-capacity lifting mechanism works, a small-capacity lifting mechanism does not work and only bears static load (a safety brake is in an upper gate state or a ratchet device is arranged); in the travel section with small opening and closing force, the small-capacity lifting machine works, the large-capacity lifting mechanism does not work and only bears static load (the brake is in an upper brake state), the power P=F×V of the driving motor (wherein F-is the opening and closing force and V-is the running speed and efficiency is not considered), the motor power of the small-capacity lifting driving mechanism with long running time can be greatly reduced, the diameter of a winding drum and the specification of a speed reducer of the large-capacity lifting driving mechanism can be optimized by adopting the method, and the motor, the speed reducer, the brake and the winding drum of the small-capacity lifting driving mechanism are optimized, so that the load characteristics of the running working conditions are more met as a whole.
2. The utility model provides a gate sectionalized opening and closing device, which comprises two sets of lifting driving mechanisms capable of independently operating, wherein one set of lifting driving mechanism is designed according to large opening and closing force and smaller lift; the other set is designed according to small opening and closing force and larger lift, and in order to ensure that static load bearing large opening and closing force is borne, the wall thickness of the winding drum, the winding drum shaft and the safety brake are considered according to maximum load; the two sets of lifting mechanisms share a load cable, a fixed pulley block, a movable pulley block, balance and the like; when the safety brake is operated, the large-capacity lifting driving mechanism works in a range from the door lintel to the orifice of the sill, and the small-capacity lifting driving mechanism works in a larger range from the upper part of the orifice to the position of the door lintel, so that the large-capacity lifting mechanism works in a travel section with large opening and closing force, and the small-capacity lifting mechanism does not work and only bears static load (the safety brake is in an upper brake state or is provided with a ratchet device); in the travel section with small opening and closing force, the small-capacity lifting machine works, and the large-capacity lifting mechanism does not work and only bears static load (the brake is in an upper brake state).
3. The gate sectional opening and closing device provided by the utility model has the advantages that the working brake and the safety brake on the winding drum can be used as a limiting mechanism when the working state is replaced while providing safety guarantee, so that the control is convenient, and the effect is obvious; the braking effect of the braking clamp matched with the braking pad is excellent and the maintenance is convenient; the direction of the balance beam is parallel to the upper edge of the gate, so that the lifting direction is in line with the mounting direction of the closing gate, and the force application is smooth; the two sleeves are combined with the middle movable pulley block to realize lifting, so that the double-machine independent lifting can be realized conveniently; the interlocking inductive switch can realize the automatic switching function of the opening and closing device.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of the utility model;
FIG. 2 is a schematic illustration of the installation of a preferred embodiment of the utility model;
FIG. 3 is a schematic view of a load line arrangement according to a preferred embodiment of the utility model;
in the figure:
1. a driver; 2. a coupling; 3. an operating brake; 4. a speed reducer; 5. a reel; 6. a safety brake; 7. a fixed pulley block; 8. a frame; 9. a load line; 10. a movable pulley block; 11. and (3) a gate.
Detailed Description
The following embodiments further illustrate the technical solutions for achieving the object of the present utility model, and it should be noted that the technical solutions of the present utility model include, but are not limited to, the following embodiments.
Example 1
As shown in fig. 1 to 3, a method for opening and closing a gate in a sectional manner comprises the following steps:
when the gate starts to open, the gate is positioned in a gate orifice at the bottom of the dam, an opening and closing device is arranged in the dam, and the lifting driving mechanism II with smaller opening and closing force locks the brake on the working brake 3 and/or the safety brake 6 so that a winding drum and a load cable 9 on the winding drum are static and only bear static load force, and the lifting driving mechanism I with larger opening and closing force starts winding, and the load cable 9 lifts the gate around a fixed pulley and carries a movable pulley through the rotation of the winding drum; the gate body is driven by the movable pulley and the load cable 9 to lift and enter a gate lifting channel in the dam, and the water pressure and the hydraulic action of the gate are gradually reduced; when the gate is completely lifted into a dam gate lifting channel, namely, the bottom edge of the gate is higher than or equal to the bottom edge of the gate lifting channel, working conditions of the lifting driving mechanism I and the lifting driving mechanism II are switched, namely, the working brake 3 and/or the safety brake 6 of the lifting driving mechanism I with larger opening and closing force are locked so that a winding drum and a lifting cable 9 on the winding drum are static and bear only static load force, the lifting driving mechanism II with smaller opening and closing force starts winding, the lifting cable 9 continuously lifts the gate around a fixed pulley to open the gate in place with a movable pulley through the rotation of the winding drum, and then the lifting driving mechanism I and the lifting driving mechanism II are all locked to finish the opening of the gate;
when the gate starts to close, the gate body is all positioned in the gate lifting channel of the dam, the lifting driving mechanism II with smaller opening and closing force is started to lower the gate, and the working brake 3 and/or the safety brake 6 of the lifting driving mechanism I with larger opening and closing force are locked on the gate at the moment so that the winding drum and the lifting cable 9 on the winding drum are static and only bear static load force; when the gate is lowered into the gate orifice, namely when the lower edge of the gate is lower than or equal to the position of the bottom edge of the gate lifting channel, working conditions of the lifting driving mechanism II and the lifting driving mechanism I are switched, namely the lifting driving mechanism II with smaller opening and closing force is locked by the working brake 3 and/or the safety brake 6 of the lifting driving mechanism II, so that a winding drum and a lifting cable 9 on the winding drum are static and bear only static load force, the lifting driving mechanism I with larger opening and closing force starts winding, and the lifting cable 9 continuously descends the gate around the fixed pulley by rotating the winding drum until the gate is lowered to the bottom.
This is the most basic implementation of the gate segment opening and closing method of the utility model. In the travel section with large opening and closing force, the high-capacity lifting mechanism works, the low-capacity lifting mechanism does not work and only bears static load (the safety brake is in an upper brake state or a ratchet device is arranged); in the travel section with small opening and closing force, the small-capacity lifting machine works, the large-capacity lifting mechanism does not work and only bears static load (the brake is in an upper brake state), the power P=F×V of the driving motor (wherein F-is the opening and closing force and V-is the running speed and efficiency is not considered), the motor power of the small-capacity lifting driving mechanism with long running time can be greatly reduced, the diameter of a winding drum and the specification of a speed reducer of the large-capacity lifting driving mechanism can be optimized by adopting the method, and the motor, the speed reducer, the brake and the winding drum of the small-capacity lifting driving mechanism are optimized, so that the load characteristics of the running working conditions are more met as a whole.
Example 2
As shown in fig. 1 to 3, a gate sectional opening and closing device comprises two sets of lifting driving mechanisms I and II which are arranged in parallel and share a lifting cable 9, wherein the lift of the lifting driving mechanism I is smaller than that of the lifting driving mechanism II, but the opening and closing force of the lifting driving mechanism I is larger than that of the lifting driving mechanism II; the reels 5 of the lifting driving mechanisms I and II are axially arranged in parallel; a fixed pulley block 7 is further arranged between the reels 5 of the lifting driving mechanisms I and II, and the hoisting ropes 9 pass through the reels 5 of one lifting driving mechanism and return to the reels 5 of the other lifting driving mechanism after winding around the fixed pulley block 7 and then winding around the movable pulley block 10.
This is a most basic embodiment of a gate segment opening and closing device of the present utility model. Two sets of lifting driving mechanisms which can independently operate, wherein one set of lifting driving mechanism is designed according to a large opening and closing force and a small lift; the other set is designed according to small opening and closing force and larger lift, and in order to ensure that static load bearing large opening and closing force is borne, the wall thickness of the winding drum, the winding drum shaft and the safety brake are considered according to maximum load; the two sets of lifting mechanisms share a lifting cable 9, a fixed pulley block 7, a movable pulley block 10, a balance beam and the like; when the safety brake is operated, the large-capacity lifting driving mechanism works in a range from the door lintel to the orifice of the sill, and the small-capacity lifting driving mechanism works in a larger range from the upper part of the orifice to the position of the door lintel, so that the large-capacity lifting mechanism works in a travel section with large opening and closing force, and the small-capacity lifting mechanism does not work and only bears static load (the safety brake is in an upper brake state or is provided with a ratchet device); in the travel section with small opening and closing force, the small-capacity lifting machine works, and the large-capacity lifting mechanism does not work and only bears static load (the brake is in an upper brake state).
Example 3
As shown in fig. 1 to 3, a gate sectional opening and closing device comprises two sets of lifting driving mechanisms I and II which are arranged in parallel and share a lifting cable 9, wherein the lift of the lifting driving mechanism I is smaller than that of the lifting driving mechanism II, but the opening and closing force of the lifting driving mechanism I is larger than that of the lifting driving mechanism II; the reels 5 of the lifting driving mechanisms I and II are axially arranged in parallel; a fixed pulley block 7 is further arranged between the reels 5 of the lifting driving mechanisms I and II, and the hoisting cable 9 passes through the reel 5 of one lifting driving mechanism, winds the fixed pulley block 7, winds the movable pulley block 10 again and returns to the reel 5 of the other lifting driving mechanism; the lifting driving mechanisms I and II comprise a driver 1, a coupler 2, a working brake 3, a speed reducer 4, a winding drum 5 and a safety brake 6, wherein the driver 1 drives the winding drum 5 through the coupler 2, the working brake 3 and the speed reducer 4 in sequence, and the safety brake 6 is arranged on the winding drum 5; the safety brake 6 comprises a brake clamp driven by a brake driving device and a brake pad arranged on the rotating shaft of the winding drum 5, wherein the outer edge of the brake pad is arranged in the middle of the brake clamp.
This is a preferred embodiment of a gate segment opening and closing device of the present utility model. Two sets of lifting driving mechanisms which can independently operate, wherein one set of lifting driving mechanism is designed according to a large opening and closing force and a small lift; the other set is designed according to small opening and closing force and larger lift, and in order to ensure that static load bearing large opening and closing force is borne, the wall thickness of the winding drum, the winding drum shaft and the safety brake are considered according to maximum load; the two sets of lifting mechanisms share a lifting cable 9, a fixed pulley block 7, a movable pulley block 10, a balance beam and the like; when the safety brake is operated, the large-capacity lifting driving mechanism works in a range from the door lintel to the orifice of the sill, and the small-capacity lifting driving mechanism works in a larger range from the upper part of the orifice to the position of the door lintel, so that the large-capacity lifting mechanism works in a travel section with large opening and closing force, and the small-capacity lifting mechanism does not work and only bears static load (the safety brake is in an upper brake state or is provided with a ratchet device); in the travel section with small opening and closing force, the small-capacity lifting machine works, and the large-capacity lifting mechanism does not work and only bears static load (the brake is in an upper brake state); the working brake 6 and the safety brake on the winding drum 5 can be used as a limiting mechanism when the working state is replaced while providing safety guarantee, so that the control is convenient, and the effect is obvious; the braking clamp is matched with the braking pad, so that the braking effect is excellent and the maintenance is convenient.
Example 4
As shown in fig. 1 to 3, a gate sectional opening and closing device comprises two sets of lifting driving mechanisms I and II which are arranged in parallel and share a lifting cable 9, wherein the lift of the lifting driving mechanism I is smaller than that of the lifting driving mechanism II, but the opening and closing force of the lifting driving mechanism I is larger than that of the lifting driving mechanism II; the reels 5 of the lifting driving mechanisms I and II are axially arranged in parallel; a fixed pulley block 7 is further arranged between the reels 5 of the lifting driving mechanisms I and II, and the hoisting cable 9 passes through the reel 5 of one lifting driving mechanism, winds the fixed pulley block 7, winds the movable pulley block 10 again and returns to the reel 5 of the other lifting driving mechanism; the lifting driving mechanisms I and II comprise a driver 1, a coupler 2, a working brake 3, a speed reducer 4, a winding drum 5 and a safety brake 6, wherein the driver 1 drives the winding drum 5 through the coupler 2, the working brake 3 and the speed reducer 4 in sequence, and the safety brake 6 is arranged on the winding drum 5; the safety brake 6 comprises a brake clamp driven by a brake driving device and a brake pad arranged on the rotating shaft of the winding drum 5, and the outer edge of the brake pad is arranged in the middle of the brake clamp; the lifting driving mechanisms I and II are arranged on the same set of frame 8 with balance beams, the balance beams are positioned right above the gate 11 and the directions of the balance beams are parallel to the upper edge of the gate 11, and the fixed pulley blocks 7 are arranged on the balance beams.
This is a preferred embodiment of a gate segment opening and closing device of the present utility model. Two sets of lifting driving mechanisms which can independently operate, wherein one set of lifting driving mechanism is designed according to a large opening and closing force and a small lift; the other set is designed according to small opening and closing force and larger lift, and in order to ensure that static load bearing large opening and closing force is borne, the wall thickness of the winding drum, the winding drum shaft and the safety brake are considered according to maximum load; the two sets of lifting mechanisms share a lifting cable 9, a fixed pulley block 7, a movable pulley block 10, a balance beam and the like; when the safety brake is operated, the large-capacity lifting driving mechanism works in a range from the door lintel to the orifice of the sill, and the small-capacity lifting driving mechanism works in a larger range from the upper part of the orifice to the position of the door lintel, so that the large-capacity lifting mechanism works in a travel section with large opening and closing force, and the small-capacity lifting mechanism does not work and only bears static load (the safety brake is in an upper brake state or is provided with a ratchet device); in the travel section with small opening and closing force, the small-capacity lifting machine works, and the large-capacity lifting mechanism does not work and only bears static load (the brake is in an upper brake state); the working brake 6 and the safety brake on the winding drum 5 can be used as a limiting mechanism when the working state is replaced while providing safety guarantee, so that the control is convenient, and the effect is obvious; the braking effect of the braking clamp matched with the braking pad is excellent and the maintenance is convenient; the direction of the balance beam is parallel to the upper edge of the gate, so that the lifting direction is in line with the installation direction of the closing gate, and the force application is smooth.
Example 5
As shown in fig. 1 to 3, a gate sectional opening and closing device comprises two sets of lifting driving mechanisms I and II which are arranged in parallel and share a lifting cable 9, wherein the lift of the lifting driving mechanism I is smaller than that of the lifting driving mechanism II, but the opening and closing force of the lifting driving mechanism I is larger than that of the lifting driving mechanism II; the reels 5 of the lifting driving mechanisms I and II are axially arranged in parallel; a fixed pulley block 7 is further arranged between the reels 5 of the lifting driving mechanisms I and II, and the hoisting cable 9 passes through the reel 5 of one lifting driving mechanism, winds the fixed pulley block 7, winds the movable pulley block 10 again and returns to the reel 5 of the other lifting driving mechanism; the lifting driving mechanisms I and II comprise a driver 1, a coupler 2, a working brake 3, a speed reducer 4, a winding drum 5 and a safety brake 6, wherein the driver 1 drives the winding drum 5 through the coupler 2, the working brake 3 and the speed reducer 4 in sequence, and the safety brake 6 is arranged on the winding drum 5; the safety brake 6 comprises a brake clamp driven by a brake driving device and a brake pad arranged on the rotating shaft of the winding drum 5, and the outer edge of the brake pad is arranged in the middle of the brake clamp; the lifting driving mechanisms I and II are arranged on the same set of frame 8 with balance beams, the balance beams are positioned right above the gate 11 and the directions of the balance beams are parallel to the upper edge of the gate 11, and the fixed pulley blocks 7 are arranged on the balance beams; the hoisting cable 9 is a steel wire rope, one end of the hoisting cable 9 is arranged on a winding drum 5 of one hoisting driving mechanism, the middle of the hoisting cable 9 is wound between a movable pulley block 10 and a fixed pulley block 7, the other end of the hoisting cable 9 is arranged on a winding drum 5 of the other hoisting driving mechanism, and the two winding drums 5 can independently drive the animation pulley block 10 to lift up and down through the hoisting cable 9; the dam provided with the opening and closing device is also provided with a pair of induction switches which are used for inducing the position of the gate and form interlocking, and the induction switches respectively control the opening and closing of the lifting driving mechanism I and the lifting driving mechanism II; when the gate is opened, the inductive switch of the lifting driving mechanism I is controlled to be turned on, the inductive switch of the lifting driving mechanism II is controlled to be turned off, and the lifting driving mechanism I is used as a power source to drive the gate to lift; when the inductive switch senses that the edge of the bottom of the gate is lifted into the gate lifting channel, the inductive switch controlling the lifting driving mechanism II is turned on, the inductive switch controlling the lifting driving mechanism I is turned off, and the lifting driving mechanism II is used as a power source to continuously drive the gate to lift.
This is a preferred embodiment of a gate segment opening and closing device of the present utility model. Two sets of lifting driving mechanisms which can independently operate, wherein one set of lifting driving mechanism is designed according to a large opening and closing force and a small lift; the other set is designed according to small opening and closing force and larger lift, and in order to ensure that static load bearing large opening and closing force is borne, the wall thickness of the winding drum, the winding drum shaft and the safety brake are considered according to maximum load; the two sets of lifting mechanisms share a lifting cable 9, a fixed pulley block 7, a movable pulley block 10, a balance beam and the like; when the safety brake is operated, the large-capacity lifting driving mechanism works in a range from the door lintel to the orifice of the sill, and the small-capacity lifting driving mechanism works in a larger range from the upper part of the orifice to the position of the door lintel, so that the large-capacity lifting mechanism works in a travel section with large opening and closing force, and the small-capacity lifting mechanism does not work and only bears static load (the safety brake is in an upper brake state or is provided with a ratchet device); in the travel section with small opening and closing force, the small-capacity lifting machine works, and the large-capacity lifting mechanism does not work and only bears static load (the brake is in an upper brake state); the working brake 6 and the safety brake on the winding drum 5 can be used as a limiting mechanism when the working state is replaced while providing safety guarantee, so that the control is convenient, and the effect is obvious; the braking effect of the braking clamp matched with the braking pad is excellent and the maintenance is convenient; the direction of the balance beam is parallel to the upper edge of the gate, so that the lifting direction is in line with the mounting direction of the closing gate, and the force application is smooth; the two sleeves are combined with the middle movable pulley block to realize lifting, so that double-machine simultaneous or independent lifting can be realized conveniently; the interlocking inductive switch can realize the automatic switching function of the opening and closing device.
Example 6
As in fig. 1-3, two sets of lifting mechanisms are employed. The lifting mechanism is designed according to large opening and closing force and small lift; the other set of lifting mechanism is designed according to small opening and closing force and large lift; respectively operating corresponding lifting driving mechanisms according to the load travel range;
the sectional hoist consists of a large-capacity lifting mechanism, a small-capacity lifting mechanism, a frame, a fixed pulley beam, a movable pulley, a fixed pulley, a steel wire rope, an electrical control system and the like;
the high-capacity lifting mechanism is arranged on one side of the fixed pulley beam, the low-capacity lifting mechanism is arranged on the other side of the fixed pulley beam, and the two sets of lifting mechanisms can respectively and independently operate;
the two sets of lifting mechanisms share the steel wire rope, the pulley device, the lifting appliance and the balance beam, and are designed according to the large-capacity opening and closing load;
in order to ensure that the two lifting points work in coordination and are consistent, an electric control system determines a lifting mechanism which is put into operation according to the lift/stroke, and the two sets of lifting mechanisms operate and have continuous operation automatic switching and interlocking functions;
the method of the sectional hoist with large capacity, low lift and small capacity and high lift is adopted, so that the design and manufacturing difficulty of the high lift gate hoist with the working condition of water operation is greatly reduced.
The device for the sectional opening and closing specifically comprises:
(1) The high-capacity lifting mechanism adopts a smaller reel diameter, a single-layer winding design is adopted on the reel by the steel wire rope, components such as a speed reducer, a brake, a motor and the like which meet the requirements are configured according to parameters such as capacity, speed and the like, the components such as a rack and the like are designed according to the large capacity, the lifting mechanism works in a travel range with large opening and closing force, the other lifting mechanism with small capacity is not put into operation, and at the moment, the safety brake of the lifting mechanism with small capacity is in an upper brake state;
(2) The small-capacity lifting mechanism adopts a larger reel diameter, a steel wire rope is wound on the reel in a multi-layer manner, components such as a speed reducer, a brake, a motor and the like which meet the requirements are configured according to capacity, the components such as the reel, a frame and a safety brake are designed according to a 'large-capacity' starting and stopping force, the lifting mechanism works in a stroke range with small starting and stopping force, and the other lifting mechanism with large capacity is not put into operation;
(3) The two sets of lifting mechanisms share a steel wire rope, a pulley device, a lifting appliance and the like, and are designed according to the opening and closing load with large capacity;
(4) The fixed positions of the steel wire ropes on the two sets of hoisting mechanism reels are arranged according to the arrangement that one set of steel wire ropes is fixed at two ends of the reels and the other set of steel wire ropes is fixed at the middle of the reels;
(5) The electric control system sets the lifting mechanism which is put into operation according to the lift (stroke), so that the coordination and the consistency of the operation of two lifting points are realized, and the operation of the two lifting mechanisms has the functions of continuous operation, automatic switching and interlocking.
The power P=F=V of the driving motor (wherein F-is the opening and closing force, V-is the running speed and efficiency is not considered), the motor power of the small-capacity lifting driving mechanism with long running time can be greatly reduced, the diameter of a winding drum and the specification of a speed reducer of the large-capacity lifting driving mechanism can be optimized by adopting the method, the motor, the speed reducer, the brake and the winding drum of the small-capacity lifting driving mechanism are optimized, and the load characteristics of the running working conditions are more met as a whole.
Claims (7)
1. A gate sectional opening and closing method is characterized in that:
when the gate starts to open, the gate is positioned in a gate orifice at the bottom of the dam, an opening and closing device is arranged in the dam, and a working brake (3) and/or a safety brake (6) of a lifting driving mechanism II with smaller opening and closing force are locked to ensure that a winding drum and a load cable (9) on the winding drum are static and bear static load force, and a lifting driving mechanism I with larger opening and closing force starts winding, so that the load cable (9) drives a movable pulley to lift the gate by rotating the winding drum; the gate body is driven by the movable pulley and the load cable (9) to lift and enter a gate lifting channel in the dam, and the water pressure and the hydraulic action of the gate are gradually reduced; when the gate is completely lifted into a dam gate lifting channel, namely, the bottom edge of the gate is higher than or equal to the bottom edge of the gate lifting channel, working conditions of the lifting driving mechanism I and the lifting driving mechanism II are switched, namely, a working brake (3) of the lifting driving mechanism I with larger opening and closing force and/or a safety brake (6) are locked, so that a winding drum and a lifting cable (9) on the winding drum are static and bear static load force, the lifting driving mechanism II with smaller opening and closing force starts winding, the lifting cable (9) is rotated by the winding drum to drive the movable pulley to continuously lift the gate until the gate is opened, and then the lifting driving mechanism I and the lifting driving mechanism II are all band-type to finish gate opening;
when the gate starts to close, the gate body is all positioned in the gate lifting channel of the dam, the lifting driving mechanism II with smaller opening and closing force is started to lower the gate, and at the moment, the working brake (3) and/or the safety brake (6) of the lifting driving mechanism I with larger opening and closing force are locked on the gate so that the winding drum and the lifting cable (9) on the winding drum are static and only bear static load force; when the gate is lowered into the gate orifice, namely when the lower edge of the gate is lower than or equal to the position of the bottom edge of the gate lifting channel, working conditions of the lifting driving mechanism II and the lifting driving mechanism I are switched, namely, the lifting driving mechanism II with smaller opening and closing force is locked on the working brake (3) and/or the safety brake (6) of the lifting driving mechanism II, so that a winding drum and a lifting cable (9) on the winding drum are static and bear static load force only, the lifting driving mechanism I with larger opening and closing force starts winding, and the lifting cable (9) is driven by the winding drum to continuously lower the gate around the fixed pulley until the gate is lowered to the bottom.
2. The utility model provides a gate segmentation headstock gear which characterized in that: the lifting mechanism comprises two sets of lifting driving mechanisms I and II which are arranged in parallel and share a load cable (9), wherein the lift of the lifting driving mechanism I is smaller than that of the lifting driving mechanism II, but the opening and closing force of the lifting driving mechanism I is larger than that of the lifting driving mechanism II; the reels (5) of the lifting driving mechanisms I and II are axially arranged in parallel; a fixed pulley block (7) is further arranged between the reels (5) of the lifting driving mechanisms I and II, and the hoisting cable (9) returns to the reel (5) of the other lifting driving mechanism after winding the fixed pulley block (7) and then winding the movable pulley block (10) through the reel (5) of the one lifting driving mechanism; when the safety brake is operated, the lifting driving mechanism I works in a range from the door lintel to the orifice of the sill, and the lifting driving mechanism II works in a larger range from the upper part of the orifice to the position of the door lintel, so that in a travel section with large opening and closing force, the lifting driving mechanism I works, the lifting driving mechanism II does not work, and only bears static load, namely the safety brake is in an upper brake state or a ratchet device is arranged; in the stroke section with small opening and closing force, the lifting driving mechanism II works, the lifting driving mechanism I does not work and only bears static load, namely, the brake is in an upper brake state.
3. A gate segment opening and closing apparatus as claimed in claim 2, wherein: lifting drive mechanism I and II all include driver (1), shaft coupling (2), work stopper (3), reduction gear (4), reel (5) and safety brake (6), and driver (1) loops through shaft coupling (2), work stopper (3) and reduction gear (4) drive reel (5), and safety brake (6) set up on reel (5).
4. A gate segment opening and closing apparatus as claimed in claim 3, wherein: the safety brake (6) comprises a brake clamp driven by a brake driving device and a brake pad arranged on the rotating shaft of the winding drum (5), and the outer edge of the brake pad is arranged in the middle of the brake clamp.
5. A gate segment opening and closing apparatus as claimed in claim 2, wherein: lifting drive mechanism I and II all set up on same cover has frame (8) of compensating beam, compensating beam is located directly over gate (11) and its direction is parallel with gate (11) top, fixed pulley group (7) set up on compensating beam.
6. A gate segment opening and closing apparatus as claimed in claim 2, wherein: the hoisting cable (9) is a steel wire rope, one end of the hoisting cable (9) is arranged on a drum (5) of one hoisting driving mechanism, the middle of the hoisting cable (9) is wound between a movable pulley block (10) and a fixed pulley block (7), the other end of the hoisting cable (9) is arranged on a drum (5) of the other hoisting driving mechanism, and the two drums (5) can independently drive the movable pulley block (10) to lift up and down through the hoisting cable (9).
7. A gate segment opening and closing apparatus as claimed in claim 2, wherein: the dam provided with the opening and closing device is also provided with a pair of induction switches which are used for inducing the position of the gate and form interlocking, and the induction switches respectively control the opening and closing of the lifting driving mechanism I and the lifting driving mechanism II; when the gate is opened, the inductive switch of the lifting driving mechanism I is controlled to be turned on, the inductive switch of the lifting driving mechanism II is controlled to be turned off, and the lifting driving mechanism I is used as a power source to drive the gate to lift; when the inductive switch senses that the edge of the bottom of the gate is lifted into the gate lifting channel, the inductive switch controlling the lifting driving mechanism II is turned on, the inductive switch controlling the lifting driving mechanism I is turned off, and the lifting driving mechanism II is used as a power source to continuously drive the gate to lift.
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| CN201710755399.8A CN107339487B (en) | 2017-08-29 | 2017-08-29 | Gate sectionalized opening and closing method and opening and closing device thereof |
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| CN201710755399.8A CN107339487B (en) | 2017-08-29 | 2017-08-29 | Gate sectionalized opening and closing method and opening and closing device thereof |
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| CN107339487B true CN107339487B (en) | 2023-07-28 |
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| CN108385623B (en) * | 2018-03-15 | 2020-08-25 | 李晓燕 | Method and device for opening and closing gate in segmented mode |
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