CN104555776B - A kind of hoisting mechanism for engineering machinery and engineering machinery - Google Patents
A kind of hoisting mechanism for engineering machinery and engineering machinery Download PDFInfo
- Publication number
- CN104555776B CN104555776B CN201410834686.4A CN201410834686A CN104555776B CN 104555776 B CN104555776 B CN 104555776B CN 201410834686 A CN201410834686 A CN 201410834686A CN 104555776 B CN104555776 B CN 104555776B
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- China
- Prior art keywords
- steel wire
- releasing hoister
- lower releasing
- hoisting mechanism
- wire rope
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Classifications
-
- 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
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0183—Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum
Abstract
The invention discloses a kind of hoisting mechanism for engineering machinery and engineering machinery, the boom tip of this engineering machinery is provided with fixed pulley, wherein, this hoisting mechanism includes hoist elevator, lower releasing hoister and work counterweight, wherein, the elevator that hoists is arranged on the pedestal of engineering machinery, and the steel wire rope of the elevator that hoists is walked around fixed pulley and is wound in many multiplying powers steel wire rope component and is connected with lower releasing hoister, and lower releasing hoister is connected with the counterweight that works by single multiplying power steel wire rope.The hoisting mechanism of the present invention includes hoist elevator and the lower releasing hoister being connected in series, and by hoisting, rolling control lifts by crane, and transfers by transferring rolling control band load.By technique scheme, this hoisting mechanism has heavy duty at a slow speed and promotes and transfer two kinds of functions at a high speed, and is capable of bump operation, and this hoisting mechanism simple in construction, cost is relatively low.
Description
Technical field
The present invention relates to engineering machinery field, in particular it relates to a kind of hoisting mechanism for engineering machinery and engineering machine
Tool.
Background technology
Large-scale impulse machine relies on high-altitude release load impacting Ground Operation, and the efficiency of operation and power are to weigh shock machine
The important indicator of tool performance, the mode of existing raising working performance relies primarily on freely falling body elevator and realizes automatization and make continuously
Industry.Such as, some crawler-type multifunctional machine all uses the freely falling body hoist engine out tape that braking capacity is bigger to carry and transfers, its base
This structure is that a freely falling body elevator passes through single multiplying power steel wire rope connection work counterweight, and wherein freely falling body elevator has been arranged on
On heavy-duty machine turntable, single multiplying power steel wire rope is walked around gib arm of crane point and is connected with work counterweight, utilizes freely falling body hoist engine during lifting
Middle reductor torque multiplication lifting work counterweight, utilizes wet brake in freely falling body hoist engine to control single multiplying power steel when transferring
The pulling force of cord.
The crane of operation, this freely falling body hoist engine and list is transferred for using freely falling body hoist engine to realize band load
The cooperation of multiplying power steel wire rope undertakes heavy duty at a slow speed and promotes and transfer two kinds of functions at a high speed.For heavy duty enhanced feature at a slow speed, owing to lacking
Few conventional hoist many multiplying powers steel wire rope torque multiplication, the motor power of freely falling body hoist engine is compared with the volume that hoists of conventional hoist
The big several times of machine of raising, and huge discharge, high pulling torque motor are expensive, significantly increase the cost of crane；For transferring merit at a high speed
Can, freely falling body brake is usually contact-type frictional braking, and brake force changes with temperature, contact conditions change, sets up system
The Controlling model of power is extremely difficult, is difficult to the accurate control of brake force when brake at a high speed, can only do on-off control, by
Being formed in the every subjob of impact force action and be more big changes, the very high speed transferred at a high speed, on-off control is difficult to accurately
Hold braking time, often cause crane to produce great vibrations because of braking in advance.
Summary of the invention
It is an object of the invention to provide a kind of hoisting mechanism for engineering machinery, this hoisting mechanism can utilize simply
Structure realizes band load and hoists at a slow speed and transfer at a high speed.
To achieve these goals, the present invention provides a kind of hoisting mechanism for engineering machinery, hanging of this engineering machinery
Arm end is provided with fixed pulley, and wherein, this hoisting mechanism includes the elevator that hoists being sequentially connected in series, lower releasing hoister and work weight
Code,
Wherein, described in the elevator that hoists be arranged on the pedestal of described engineering machinery, described in the hoist steel wire rope of elevator walk around
Described fixed pulley is also wound in many multiplying powers steel wire rope component and is connected with described lower releasing hoister, and described lower releasing hoister is by single multiplying power steel
Cord is connected with described work counterweight.
Preferably, described hoisting mechanism also includes movable pulley, and this movable pulley is connected with described lower releasing hoister, described in hoist volume
The steel wire rope raised walks around described fixed pulley and described movable pulley to constitute described many multiplying powers steel wire rope component.
Preferably, described movable pulley being provided with suspension hook, described lower releasing hoister includes support, this support by balance plate with
This suspension hook connects to keep the reel of described lower releasing hoister to keep level.
Preferably, described hoisting mechanism also includes counterweight, and this counterweight is unreeled under described by first single multiplying power steel wire rope
Raise connection, and described counterweight is connected with described work counterweight by second single multiplying power steel wire rope.
Preferably, the reel of described lower releasing hoister is double crosslinking drum, and this double crosslinking drum includes cylinder and middle baffle plate, in this
Between baffle plate be arranged on this cylinder the central axial direction along described cylinder centre position outer peripheral face on, described middle baffle plate
The grooving arranged on the outer peripheral face of the described cylinder of both sides around to contrary and be arranged symmetrically with, described first single multiplying power steel wire rope is
Two, these two described first single multiplying power steel wire ropes are wrapped in outside the described cylinder of described middle baffle plate both sides with being respectively symmetrically
On side face.
Preferably, described double crosslinking drum also includes right baffle-plate and right baffle plate, the middle baffle plate being arranged on described cylinder two ends
Connect and have left even rope device and right even rope device.
Preferably, described lower releasing hoister also include drive motor, wherein,
Described driving motor drives the reel of described lower releasing hoister to rotate, and described lockable mechanism is for described lower releasing hoister
Reel be braked.
Preferably, described lower releasing hoister also includes eddy current retarder, this eddy current retarder and the output of described driving motor
Axle connection is slowed down with the reel to described lower releasing hoister.
The present invention also provides for a kind of engineering machinery, and wherein, this engineering machinery includes hoisting mechanism of the present invention.
The hoisting mechanism of the present invention includes hoist elevator and the lower releasing hoister being connected in series, and by hoisting, rolling control rises
Hang, transfer by transferring rolling control band load.By technique scheme, this hoisting mechanism has heavy duty at a slow speed and promotes and high speed
Transfer two kinds of functions, and be capable of bump operation, and this hoisting mechanism simple in construction, cost is relatively low.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the hoisting mechanism according to prior art；
Fig. 2 is the schematic diagram of hoisting mechanism according to the preferred embodiment of the present invention；
Fig. 3 is the schematic diagram descending releasing hoister according to the preferred embodiment of the present invention；
Fig. 4 is the schematic diagram of the lower releasing hoister according to another preferred implementation of the present invention.
Description of reference numerals
1 fixed pulley；Multiplying power steel wire rope component more than 2；3 first single multiplying power steel wire ropes；4 second single multiplying power steel wire ropes；5 is dynamic sliding
Wheel；6 suspension hooks；10 hoist elevator；20 times releasing hoisters；21,21 ' cylinders；22 middle baffle plate；23 supports；24 balance plates；25 ' left gears
Plate；26 ' right baffle plates；27,27 ' left even rope devices；28,28 ' right even rope devices；30 work counterweights；31,31 ' drive motor；32 eddy current delay
Speed device；34 back-moving springs；35 lock pins；36 locking motors；37 locking rods；32 ' parking brake；33 ' planetary reduction gear wheels；34’
Eddy current retarder；35 ' wet brakes；40 counterweights
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
In the present invention, in the case of illustrating on the contrary, the noun of locality of use should be in conjunction with direction shown in accompanying drawing
Or the direction under hoisting mechanism actual working state is suitably explained.
The present invention provides a kind of hoisting mechanism for engineering machinery, and the boom tip of this engineering machinery is provided with fixed pulley
1, wherein, this hoisting mechanism includes the elevator 10 that hoists, lower releasing hoister 20 and the work counterweight 30 being sequentially connected in series,
Wherein, described in the elevator 10 that hoists be arranged on the pedestal of described engineering machinery, described in hoist the steel wire rope of elevator 10
Walking around described fixed pulley and be wound in many multiplying powers steel wire rope component 2 and be connected with described lower releasing hoister 20, described lower releasing hoister 20 leads to
Cross single multiplying power steel wire rope to be connected with described work counterweight 30.
According to technical scheme, the elevator 10 that hoists is mainly used to hoisting heavy at a slow speed.Generally, this elevator 10 that hoists
Being arranged on the pedestal of crane, the steel wire rope of the elevator 10 that hoists is walked around the fixed pulley 1 of boom tip setting and is downwardly extended, and
Utilizing movable pulley to be wound in many multiplying powers steel wire rope component 2 of the prior art, this many multiplying powers steel wire rope component 2 connects lower releasing hoister
20, this lower releasing hoister 20 is directly by two single multiplying power steel wire rope connection work counterweights 30.It is to say, at this hoisting mechanism
In, the elevator that hoists, lower releasing hoister are together with counterweight is connected in series with work.
When hoisting mechanism upwards lifts by crane, the driving motor braking of lower releasing hoister 20 with the single multiplying power steel wire rope of locking, thus
Keep relative distance between lower releasing hoister 20 and work counterweight 30, the electric machine rotation rope closing of the elevator 10 that hoists thus by many multiplying powers
Steel wire rope component 2 promotes lower releasing hoister 20 and work counterweight 30.In order to increase the hoisting power of the elevator 10 that hoists, hoist elevator 10
Be in the operating mode of low-speed heave-load when band carries lifting, the reducing gear in elevator 10 that hoists generally uses bigger speed reducing ratio to increase
The big moment of torsion promoted.Preferably, described hoisting mechanism also includes movable pulley 5, and this movable pulley 5 is connected with described lower releasing hoister 20,
The described steel wire rope hoisting elevator 10 walks around described fixed pulley 1 and described movable pulley 5 to constitute described many multiplying powers steel wire rope component
2.Hoisting after fixed pulley 1 walked around by the steel wire rope of elevator 10 utilizes the structures such as movable pulley to be co-operatively wound in many multiplying powers steel wire rope
Assembly 2, by many multiplying powers steel wire rope further torque multiplication lifting work counterweight 30.Specifically, those skilled in the art can root
Arranging this many multiplying powers construction of wire rope adaptively according to being actually needed, Fig. 2 exemplarily only illustrates a kind of many multiplying powers steel wire
The structure of rope, is not intended as the restriction of the present invention.
After counterweight 30 is raised to predetermined altitude in work, the driving motor braking of the elevator 10 that hoists with Locking stylet rope,
Thus the relative position between elevator 10 with lower releasing hoister 20 that keeps hoisting, now hoisting mechanism is in high-order lock-out state, and
In the process, the driving motor of lower releasing hoister 20 remains lockup state.
When hoisting mechanism band carries and transfers, the driving motor of the elevator 10 that hoists keep on-position with Locking stylet rope, under
The lockable mechanism of releasing hoister 20 releases the locking of the reel to lower releasing hoister 20, and the reel of lower releasing hoister 20 can rotate, work
Counterweight 30 accelerates to transfer under gravity, and now hoisting mechanism is in band and carries the state transferred.
After work counterweight 30 contacts ground, the current vortex retarder 32 of lower releasing hoister 20 controls the volume of lower releasing hoister 20
Cylinder slows down, and now hoisting mechanism is in the state braked of landing, until the reel low speed rotation of lower releasing hoister 20, lockable mechanism pair
The reel locking of lower releasing hoister 20, and when the driving motor of the elevator 10 that hoists is also at on-position, now at hoisting mechanism
In low level lock-out state.
As can be seen here, according to the hoisting mechanism of the present invention, only will hoist elevator 10 and lower releasing hoister 20 are by setting cleverly
Meter is cascaded, just can be respectively by hoisting elevator 10 and lower releasing hoister 20 realizes heavy-duty low-speed and promotes and underloading is high
Two processes that speed is transferred, not only provide enough moments of torsion in band carries lifting process, also ensure work counterweight 30 and contact
There is during ground sufficiently large speed.
The hoisting mechanism of the present invention includes hoist elevator and the lower releasing hoister being connected in series, and by hoisting, rolling control rises
Hang, transfer by transferring rolling control band load.By technique scheme, this hoisting mechanism has heavy duty at a slow speed and promotes and high speed
Transfer two kinds of functions, and be capable of bump operation, and this hoisting mechanism simple in construction, cost is relatively low.
Preferably, described hoisting mechanism also includes movable pulley 5, and this movable pulley 5 is connected with described lower releasing hoister 20, described
The steel wire rope rising elevator 10 walks around described fixed pulley 1 and described movable pulley 5 to constitute described many multiplying powers steel wire rope component 2.More excellent
Selection of land, described movable pulley 4 is provided with suspension hook 6, and described lower releasing hoister 20 includes support 23, this support 23 by balance plate 24 with
This suspension hook 6 connects so that the reel holding level of described lower releasing hoister 20.
Being connected with this balance plate 24 entirely through support 23 of lower releasing hoister 20.In order to ensure that the reel of lower releasing hoister 20 is protected
Water holding is put down, and this balance plate 24 is preferably triangular plate as shown in Figure 2, more preferably isosceles triangle plate, this isoceles triangle
At two symmetrical angles of shape, both sides with the support 23 of lower releasing hoister 20 are connected respectively, and at the drift angle of this isosceles triangle with hang
Hook 6 connects.Or, this balance plate 24 can also be chosen as other shapes according to the position of centre of gravity of lower releasing hoister 20 reality, its
When purpose is to make lower releasing hoister be sling by suspension hook 6 and balance plate 24, the reel of lower releasing hoister 20 keeps level such that it is able to more
Control well work counterweight 30 steadily to transfer, and lower releasing hoister 20 carries out band load in an inclined state and transfers meeting due to instability
And cause damaging, can also correspondingly be avoided by above-mentioned preferred implementation.
Preferably, described hoisting mechanism also includes counterweight 40, this counterweight 40 by first single multiplying power steel wire rope 3 with described under
Releasing hoister 20 connects, and described counterweight 40 is connected with described work counterweight 30 by second single multiplying power steel wire rope 4.
The effect of this counterweight 40 is after work counterweight 30 contacts ground, remains in that the steel wire rope of lower releasing hoister 20 draws
Straight state, thus prevent the steel wire rope of lower releasing hoister 20 from the confusion caused because of slack rope occurring.Preferably, described here
One single multiplying power steel wire rope 3 i.e. refers to the steel wire rope of lower releasing hoister 20.
Specifically, when hoisting mechanism band carries and transfers, this counterweight 40 falls jointly with work counterweight 30.And when work counterweight
After 30 contact ground, the spool velocity reduction that preferably can be controlled lower releasing hoister 20 by retarder of lower releasing hoister 20,
Therefore control the downward retarded motion of counterweight 40, it is preferable that the maximum deceleration stroke of counterweight 40 be counterweight 40 with work counterweight 30 it
Between the length of second single multiplying power steel wire rope 4.Further, when counterweight 40 is not yet landed and speed is decreased to close to 0, locking machine
Structure locking is so that the reel of lower releasing hoister 20 stops the rotation, and now the position of counterweight 40 locks.
After the band load decentralization process of above-mentioned hoisting mechanism terminates, the brake of the elevator 10 that hoists is opened, and hoist elevator
The driving motor of 10 rotates puts rope, and is moved downward by the lower releasing hoister 20 of many multiplying powers steel wire rope component 2 control, unreels down
The brake raising 20 is also opened, and the driving motor of lower releasing hoister 10 rotates rope closing, and the speed transferred of lower releasing hoister 20 and the
The rope closing speed of one single multiplying power steel wire rope 3 is the most equal, until lower releasing hoister 20 is close to counterweight 40, this process is the present invention's
The process that hoisting mechanism resets.
It should be noted that in order to keep between counterweight 40 and lower releasing hoister 20 first single multiplying power steel wire rope 3 to protect all the time
Holding the state of tensioning, this counterweight 40 is preferably does not lands in whole work process.
Preferably, the reel of described lower releasing hoister 20 is double crosslinking drum, and this double crosslinking drum includes cylinder 21 and middle baffle plate
22, this middle baffle plate 22 is arranged on the outer peripheral face in the centre position of the central axial direction along described cylinder 21 of this cylinder 21
On, the grooving that the outer peripheral face of the described cylinder 21 of described middle baffle plate 22 both sides is arranged around to contrary and be arranged symmetrically with, institute
Stating first single multiplying power steel wire rope 3 is two, and these two described first single multiplying power steel wire ropes 3 are wrapped in described centre with being respectively symmetrically
On the outer peripheral face of the described cylinder 21 of baffle plate 22 both sides.
As described above, owing to lower releasing hoister 20 is that suspention is skyborne in band carries the work process transferred, under unreel
If raising in the roll of tape load decentralization process of 20 and being not at level, reel tilts, and makes wiring that reel to enter angle partially excessive, then
It is easy to produce rope skipping, disorder cable, mill rope, vibration etc. and damages lower releasing hoister 20, also can make the decentralization process of work counterweight 30
Unstable and shake occur, it is very important for therefore keeping the reel level of lower releasing hoister 20 to carry decentralization process for band.
In the preferred embodiment, the driving motor at lower releasing hoister 20 drives this double crosslinking drum to rotate, two lists times
Rate steel wire rope 3 can symmetrical on the outer peripheral face of the cylinder 21 of middle baffle plate 22 both sides of double crosslinking drum be wound around, thus avoids work
Make counterweight 30 in dropping process, owing on cylinder 21, the cylinder 21 that is asymmetric and that cause that is wound around of steel wire rope tilts.Preferably,
Left even rope device 27 that described double crosslinking drum also includes being arranged in middle baffle plate 22 and right even rope device 28, it is preferable that these two the
The end of one single multiplying power steel wire rope 3 is fixed on two on described cylinder 21 respectively and even restricts on device 27 and 28, and symmetrically towards
Both sides are wound around.
The technical scheme of the hoisting mechanism of the present invention hoists elevator 10 and lower releasing hoister 20 is gone here and there except providing mentioned above
Outside the structure of connection, in order to adapt to the application of this structure, present invention also offers the lower releasing hoister 20 of a kind of improvement, so that
This lower releasing hoister 20 can be more suitable for carrying band the control of decentralization process.
Preferably, described lower releasing hoister 20 also includes driving motor 31 and lockable mechanism, and wherein, described driving motor 31 drives
The reel of dynamic described lower releasing hoister 20 rotates, and described lockable mechanism is connected with the reel of described lower releasing hoister 20 and is used for described
The reel of lower releasing hoister 20 carries out locking.
The invention provides a kind of preferred implementation of the lockable mechanism of a kind of lower releasing hoister 20, wherein it is preferred to, institute
State lockable mechanism and include back-moving spring 34, lock pin 35, locking motor 36 and locking rod 37, described back-moving spring 34 and described lock
Shotpin 35 connects, and described locking motor 36 can drive described locking rod 37 straight line fortune between initial position and extended position
Dynamic, wherein,
Described locking rod 37 is when described initial position, and described back-moving spring 34 is in lock position, and described lock pin
In the locking draw-in groove of 35 reels being connected to described lower releasing hoister 20, described lockable mechanism is in lockup state,
Described locking rod 37 promotes described lock pin 35 to depart from the reel of described lower releasing hoister 20 when described extended position
Locking draw-in groove, described back-moving spring 34 is in the unlocked position, and described lockable mechanism is in released state.
As it is shown on figure 3, back-moving spring 34 can be nature elongation in a latched condition can also be tension state.Work as locking
When motor 36 rotates forward, locking rod 37 extends outward to extended position, overcomes the restoring force of back-moving spring 34 to make back-moving spring 34
Stretching, locking rod 37 promotes lock pin 35 to slide in and out, until the locking draw-in groove departed from the reel of lower releasing hoister 20, thus solve
Locking except the reel to lower releasing hoister 20；When locking motor 36 inverts, locking rod 37 retracts inwardly into initial position, locking
Bar 37 separates with lock pin 35, and lock pin 35 is slid inward under the effect of the restoring force of back-moving spring 34, when reel baffle wedge
When groove forwards at lock pin 34, lock pin 35 returns on the reel of lower releasing hoister 20 in back-moving spring 34 pulling force effect lower slider
Locking draw-in groove, with the reel of releasing hoister under locking 20.
Wherein, this locking rod 37 is connected with locking motor 36, and can be by the rotary motion of the output shaft of locking motor 36
Changing into the linear motion of locking rod 37, wherein, the structure of this locking rod 37 can use prior art, and any one is suitable for
Mode, the present invention is not any limitation as.
Described lower releasing hoister 20 also includes eddy current retarder 32, and this eddy current retarder 32 is connected also with described driving motor 31
For described driving motor 31 is slowed down.During work counterweight 30 freely falling body falls, due to work counterweight 30
Excessive velocities, if desired the reel to lower releasing hoister 20 carry out slow down control lowering velocity, common brake is difficult to meet
Need, and brake is also easy to cause because frictional resistance is excessive damage.Eddy current retarder uses automatically controlled contactless system
Flowing mode is braked, and is not only easy to control, and retro-speed is fast, and there is not yet friction, not rapid wear inside eddy current retarder
Bad.Therefore, in a preferred embodiment of the invention, eddy current can be passed through the reel high speed rotating of lower releasing hoister 20 when
Retarder is braked.
Specifically, when the driving motor 31 of releasing hoister 20 rotates rope closing instantly, locking motor 36 rotates forward, outside locking rod 37
Stretch, overcome the pulling force of back-moving spring 34, lock pin 35 is ejected the locking draw-in groove of the reel of lower releasing hoister 20, lockable mechanism solution
Lock, now the reel of lower section elevator 20 is in solution on-position.
When the counterweight 30 that works hovers over aerial, locking motor 36 inverts, and locking rod 37 bounces back, and lock pin 35 is at reset bullet
Under the effect of spring 34 restoring force, enter locking draw-in groove, lockable mechanism locking, now descend the reel of releasing hoister 20 to be in braking shape
State, work counterweight 30 is then suspended in the air.
When the counterweight 30 that works is transferred, lockable mechanism unlocks, can be by controlling during work counterweight 30 is transferred
The size of current of eddy current retarder 32 regulates the brake force of the reel to lower releasing hoister 20, thus regulates the volume of lower releasing hoister 20
The rotating speed of cylinder, and then control the lowering velocity of work counterweight 30.After work counterweight 30 contacts ground, increase eddy current retarder
The electric current of 32, thus the retarded motion of work counterweight 30 is realized by eddy current retarder 32, and when speed is close to 0, by locking
Locking mechanism locking.
More than it is only exemplified by a kind of preferred implementation of the lockable mechanism of the present invention, and not as the knot to lockable mechanism
The restriction of structure.And the present invention is more not limited to scenario described hereinabove, existing skill to the mode of braking of the reel of lower releasing hoister 20
In art, any one structure being suitable for can be used in the present invention the reel to lower releasing hoister 20 and is braked.
Such as, as shown in Figure 4, it is preferable that described double crosslinking drum also includes the right baffle-plate being arranged on described cylinder 21 ' two ends
25 ' and right baffle plate 26 ', the described upper connection of right baffle-plate 25 ' has left even rope device 27 ', the described right upper connection of baffle plate 26 ' to have right even rope device
28’.Preferably, the end of these two first single multiplying power steel wire ropes 3 is fixed on left company on described cylinder 21 ' the most respectively
On rope device 27 ' and right even rope device 28 ', and symmetrically towards mid-wrap.
Preferably, in another preferred implementation of the present invention, described lower releasing hoister 20 includes driving motor 31 ', stays
Vehicle brake 32 ' and planetary reducer 33 ', wherein,
This planetary reducer 33 ' is connected and drives described spool turns, described driving with the reel of described lower releasing hoister 20
Motor 31 ' drives described planetary reducer 33 ' to rotate, and described parking brake 32 ' is for the output to described driving motor 31 '
Axle is braked.Visible, parking brake 32 ' is for driving motor 31 ' to be braked.It is highly preferred that described lower releasing hoister
20 also include eddy current retarder 34 ', and this eddy current retarder 34 ' is connected with the output shaft of described planetary reducer 33 ' with to described
The reel of lower releasing hoister 20 slows down.
This planetary reducer 33 ' can be formed not by any one parts in fixing power shaft, output shaft and planet carrier
With speed reducing ratio, lock line carrier, drive motor 31 ' reel of lower releasing hoister 20 can be driven positive and negative through planetary reducer 33 '
To rotation；Locking power shaft, reel can be slow by eddy current retarder 34 ' through planetary reducer 33 ', to during low speed by wet braking
Device 35 ' is braked.
During work counterweight 30 freely falling body falls, due to the excessive velocities of the counterweight 30 that works, if now needed
If the reel of lower releasing hoister 20 being carried out retarding braking and controlling lowering velocity, common brake is difficult to meet needs,
And brake is also easy to cause damage because frictional resistance is excessive.Eddy current retarder uses electric current to be braked control,
Not only being easy to control, retro-speed is fast, and there is not yet friction inside eddy current retarder, is hardly damaged.Therefore, in the present invention
Preferred implementation in, can be braked by eddy current retarder the reel high speed rotating of lower releasing hoister 20 when.
Preferably, described lower releasing hoister 20 includes wet brake 35 ', this wet brake 35 ' and described planetary reduction gear
The output shaft connection of machine 33 ' is braked with the reel to described lower releasing hoister 20.
It is highly preferred that lower releasing hoister 20 includes eddy current retarder 34 ' and wet brake 35 ' simultaneously.Owing to eddy current is slow
Device 34 ' is better performances under the brake condition of the reel high speed rotating to lower releasing hoister 20, it is simple to control, and for lower releasing hoister
The braking effect of the situation of the reel low speed rotation of 20 is unsatisfactory, therefore with wet brake 35 ' with the use of, utilize eddy current
The reel of lower releasing hoister 20 is carried out braking at a high speed by retarder 34 ', and profit again after the spool velocity of releasing hoister 20 reduces instantly
It is braked until stopping the rotation with wet brake 35 '.
The present invention also provides for a kind of engineering machinery, and wherein, this engineering machinery includes hoisting mechanism of the present invention.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, technical scheme can be carried out multiple letter
Monotropic type, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1., for a hoisting mechanism for engineering machinery, the boom tip of this engineering machinery is provided with fixed pulley (1), and its feature exists
In, this hoisting mechanism includes the elevator that hoists (10) being sequentially connected in series, lower releasing hoister (20) and work counterweight (30),
Wherein, described in the elevator (10) that hoists be arranged on the pedestal of described engineering machinery, described in hoist the steel wire rope of elevator (10)
Walk around described fixed pulley (1) and be wound in many multiplying powers steel wire rope component (2) and be connected with described lower releasing hoister (20), described under unreel
Raise (20) to be connected with described work counterweight (30) by single multiplying power steel wire rope.
Hoisting mechanism the most according to claim 1, it is characterised in that described hoisting mechanism also includes movable pulley (5), this moves
Pulley (5) is connected with described lower releasing hoister (20), described in the hoist steel wire rope of elevator (10) walk around described fixed pulley (1) and described
Movable pulley (5) is to constitute described many multiplying powers steel wire rope component (2).
Hoisting mechanism the most according to claim 2, it is characterised in that be provided with suspension hook (6), institute on described movable pulley (5)
Stating lower releasing hoister (20) and include support (23), this support (23) is connected so that under described by balance plate (24) with this suspension hook (6)
The reel of releasing hoister (20) keeps level.
Hoisting mechanism the most according to claim 1, it is characterised in that described hoisting mechanism also includes counterweight (40), described
Single multiplying power steel wire rope includes first single multiplying power steel wire rope (3) and second single multiplying power steel wire rope (4), and described counterweight (40) is by described
First single multiplying power steel wire rope (3) is connected with described lower releasing hoister (20), and described counterweight (40) is by described second single multiplying power steel
Cord (4) is connected with described work counterweight (30).
Hoisting mechanism the most according to claim 4, it is characterised in that the reel of described lower releasing hoister (20) is duplex volume
Cylinder, this double crosslinking drum includes cylinder (21) and middle baffle plate (22), this middle baffle plate (22) be arranged on this cylinder (21) along institute
On the outer peripheral face in the centre position stating the central axial direction of cylinder (21), the described cylinder of described middle baffle plate (22) both sides
(21) grooving arranged on outer peripheral face around to contrary and be arranged symmetrically with, described first single multiplying power steel wire rope (3) is two, should
Two described first single multiplying power steel wire ropes (3) are wrapped in the described cylinder (21) of described middle baffle plate (22) both sides with being respectively symmetrically
Outer peripheral face on.
Hoisting mechanism the most according to claim 5, it is characterised in that described double crosslinking drum also includes being arranged on middle baffle plate
(22) left even rope device (27) on and right even rope device (28).
Hoisting mechanism the most according to claim 1, it is characterised in that described lower releasing hoister (20) also includes driving motor
(31) and lockable mechanism, wherein,
Described driving motor (31) drives the reel of described lower releasing hoister (20) to rotate, described lockable mechanism and described lower releasing hoister
(20) reel connects and is used for the reel of described lower releasing hoister (20) is carried out locking.
Hoisting mechanism the most according to claim 7, it is characterised in that described lockable mechanism includes back-moving spring (34), lock
Shotpin (35), locking motor (36) and locking rod (37), described back-moving spring (34) is connected with described lock pin (35), described lock
Only motor (36) can drive described locking rod (37) to move along a straight line between initial position and extended position, wherein,
Described locking rod (37) is when described initial position, and described back-moving spring (34) is in lock position, and described lock pin
(35) being connected in the locking draw-in groove of reel of described lower releasing hoister (20), described lockable mechanism is in lockup state,
Described locking rod (37) promotes described lock pin (35) to depart from the volume of described lower releasing hoister (20) when described extended position
The locking draw-in groove of cylinder, described back-moving spring (34) is in the unlocked position, and described lockable mechanism is in released state.
Hoisting mechanism the most according to claim 7, it is characterised in that described lower releasing hoister (20) also includes eddy current retarder
(32), this eddy current retarder (32) is connected with described driving motor (31) and is used for slowing down described driving motor (31).
10. an engineering machinery, it is characterised in that this engineering machinery includes the elevator in claim 1-9 described in any one
Mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410834686.4A CN104555776B (en) | 2014-12-29 | 2014-12-29 | A kind of hoisting mechanism for engineering machinery and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410834686.4A CN104555776B (en) | 2014-12-29 | 2014-12-29 | A kind of hoisting mechanism for engineering machinery and engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104555776A CN104555776A (en) | 2015-04-29 |
| CN104555776B true CN104555776B (en) | 2016-10-26 |
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|---|---|---|---|
| CN201410834686.4A Active CN104555776B (en) | 2014-12-29 | 2014-12-29 | A kind of hoisting mechanism for engineering machinery and engineering machinery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110127545A (en) * | 2019-05-14 | 2019-08-16 | 中成空间（深圳）智能技术有限公司 | Air film hanging device and pneumatic membrane building with it |
| CN114715787A (en) * | 2022-03-31 | 2022-07-08 | 湖南三一中型起重机械有限公司 | Crane with a movable crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2906594A1 (en) * | 1979-02-21 | 1980-08-28 | Gottwald Kg Leo | TELESCOPIC CRANE |
| CN2333692Y (en) * | 1998-06-25 | 1999-08-18 | 亓德福 | Hoister |
| CN201024053Y (en) * | 2007-04-10 | 2008-02-20 | 山东丰汇设备技术有限公司 | Truss structure modular type super big mast type crane |
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