CN106744263A - The conversion method and tower crane of hook mechanism and its working condition - Google Patents
The conversion method and tower crane of hook mechanism and its working condition Download PDFInfo
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- CN106744263A CN106744263A CN201710010534.6A CN201710010534A CN106744263A CN 106744263 A CN106744263 A CN 106744263A CN 201710010534 A CN201710010534 A CN 201710010534A CN 106744263 A CN106744263 A CN 106744263A
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- pulley
- suspension hook
- hook
- secondary suspension
- yoke
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 27
- 239000000725 suspension Substances 0.000 claims abstract description 148
- 238000009434 installation Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
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- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a kind of hook mechanism and its conversion method and tower crane of working condition, the hook mechanism includes：Arm spike knot (1)；Main suspension hook (6) with first pulley (601), second pulley (602) and suspension hook (603)；Pulley yoke (3) including the 3rd pulley (301)；Secondary suspension hook (5) including the 4th pulley (501)；Pull rope (2)；Wherein, secondary suspension hook (5) can selectively removably be connected to the main suspension hook (6) or the pulley yoke (3), pull rope (2) bypasses the first pulley (601), the 4th pulley (501) and the second pulley (602) successively, and the second end of pull rope (2) can be selectively connected to the pulley yoke (3) or the secondary suspension hook (5).The working condition conversion of hook mechanism need not dismantle secondary suspension hook, eliminate as secondary suspension hook is dismantled or installs the operation of pull rope, improve operating efficiency.
Description
Technical field
The present invention relates to engineering machinery, in particular it relates to the conversion method of a kind of hook mechanism and its working condition and
Tower crane.
Background technology
Tower crane, i.e. " derrick crane " referred to as, be for construction in a kind of crane gear.
Tower crane passes through the cooperation hoisting heavy of multiple pulleys and suspension hook, the winding mode of quantity and pull rope according to pulley
Difference, the multiplying power of lifting is also different, and for example tower crane can be by working condition hoisting heavies such as two multiplying powers, three multiplying powers, four multiplying powers, this
The multiple proportion of the total length that the multiplying power at place is packed up for pull rope and weight lifting height, and multiplying power is higher, acts on traction
The load of rope is smaller.When hoisting weight is smaller, can be lifted by crane with low range working condition, and hoisting weight it is larger when, can be with height
Multiplying power working condition is lifted by crane.
The hook mechanism of tower crane can be changed between the working condition of different multiplying, and the hook mechanism for using at present is turning
Structure change is relatively large when changing different working condition, generally requires to add or remove some accessories on hook mechanism,
Operational ton and operating time are increased, and under a few thing state, some parts of pull rope are extended with angle of inclination, are deposited
In horizontal component, hook mechanism is caused easily to produce horizontal displacement, unstable working condition.
The content of the invention
It is an object of the invention to provide a kind of conversion efficiency for lifting by crane multiplying power hook mechanism higher.
To achieve these goals, the invention provides a kind of hook mechanism, wherein, the hook mechanism includes：Arm spike knot,
The arm spike knot is provided with draw-gear；Main suspension hook, the main suspension hook has first pulley, second pulley and suspension hook；Pulley yoke, the cunning
Wheel carrier includes the 3rd pulley, and the pulley yoke is fixed on the arm spike knot；Secondary suspension hook, the secondary suspension hook includes the 4th pulley；
Pull rope, the first end of the pull rope is drawn by the draw-gear, and the second end is provided with connecting portion；Wherein, it is described
Secondary suspension hook can selectively removably be connected to the main suspension hook or the pulley yoke, and the pull rope bypasses described successively
First pulley, the 4th pulley and the second pulley, and the second end of the pull rope can by the connecting portion
It is selectively connected to the pulley yoke or the secondary suspension hook.
Preferably, the hook mechanism optionally can be worked with first state, the second state and the third state, described
Under first state, the secondary suspension hook is connected to the pulley yoke, and the pull rope bypasses the first pulley, the described 4th successively
Pulley and the second pulley, and the connecting portion is connected to the pulley yoke；In said second condition, the secondary suspension hook
Be connected to the main suspension hook, the pull rope bypass successively the first pulley, the 4th pulley, the second pulley and
3rd pulley, and the connecting portion is connected to the secondary suspension hook；Under the third state, the secondary suspension hook is connected to
The main suspension hook, the pull rope bypasses the first pulley, the 4th pulley and the second pulley successively, and described
Connecting portion is connected to the pulley yoke.
Preferably, the first pulley, the second pulley and the 4th diameter of pulley are identical, the 3rd pulley
1.3-1.6 times of a diameter of described first pulley diameter, the high setting such as the first pulley and the second pulley, described
The rotation axis of four pulleys is aligned in the line midpoint of the rotation axis of the first pulley and the second pulley.
Preferably, the draw-gear is installed on arm spike knot first end in the horizontal direction, and the pulley yoke is installed
In the arm spike knot the second end in the horizontal direction, the pulley yoke is formed with and is aligned in two of the 3rd pulley respectively and erects
Two tie points of straight tangent line, one of them described tie point can be connected to the secondary suspension hook and be vertically aligned in the described 4th
The rotation axis of pulley, another described tie point can be connected to the connecting portion of the pull rope, the 3rd pulley
Rotation axis and 2-2.4 times that the horizontal range of the draw-gear is the first pulley diameter.
Preferably, the arm spike knot is provided with auxiliary sling point, and the main suspension hook is provided with auxiliary hanging hole, the hook mechanism
Also include lifting rope, the main suspension hook can be hung on the auxiliary sling point by the lifting rope through the auxiliary hanging hole.
Preferably, the connecting portion includes pull rope anti-twisting equipment.
Preferably, the lower end of the secondary suspension hook is formed with detent and the upper end of the main suspension hook is formed with convex
Block, or the lower end of the secondary suspension hook is formed with locating convex block and the upper end of the main suspension hook is formed with detent, in institute
State in the state of the locating convex block insertion detent, the secondary suspension hook can be installed on the main suspension hook.
Preferably, two clamping plates of the pulley yoke including the interval that is stacked on one another, the 3rd pulley is clamped in two institutes
State between clamping plate, gear rope bearing pin is removably equipped with two clamping plates, the gear rope bearing pin is around the 3rd pulley
Set, and the vertical height for keeping off rope bearing pin is not less than the rotation axis of the 3rd pulley.
Preferably, the draw-gear includes fixed pulley or winding plant.
In addition, present invention also offers a kind of conversion method of the working condition of hook mechanism, wherein, the hook mechanism
Hook mechanism described in above scheme, the conversion method includes the hook mechanism from the first state to described second
The method of State Transferring：By the main hook to the height close with the pulley yoke；The secondary suspension hook is connected to institute
Main suspension hook is stated, and releases the connection between the secondary suspension hook and the pulley yoke；The connecting portion is released with the pulley yoke
Connection, the second end of the pull rope is bypassed into the 3rd pulley, and the connecting portion is connected to the secondary suspension hook.
Preferably, the conversion method is also changed from second state including the hook mechanism to the third state
Method：By the main hook to the height close with the pulley yoke；The connecting portion is released with the secondary suspension hook
Connection, releasing is wound on the pull rope on the 3rd pulley, and the connecting portion is connected into the pulley yoke.
Preferably, the conversion method is also changed including the hook mechanism from the first state to the third state
Method：By the main hook to the height close with the pulley yoke；The secondary suspension hook is connected to the main suspension hook,
And release the connection between the secondary suspension hook and the pulley yoke.
Preferably, after by the main hook to the height close with the pulley yoke, using lifting rope by the master
Suspension hook is hung on the arm spike knot.
In addition, present invention also offers a kind of tower crane, wherein, the tower crane installation has hook mechanism described in above scheme.
By above-mentioned technical proposal, under different working conditions, secondary suspension hook is not dismantled in remaining at hook mechanism,
The operation that pull rope is dismantled or installed on secondary suspension hook is eliminated, operating efficiency is improve.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of specification, with following tool
Body implementation method is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of hook mechanism structural representation in the first state of implementation method of the invention；
Fig. 2 is a kind of hook mechanism structural representation in the second condition of implementation method of the invention；
Fig. 3 is a kind of hook mechanism structural representation in a third condition of implementation method of the invention；
Fig. 4 is a kind of structural representation of the pulley yoke of the hook mechanism of implementation method of the invention.
Description of reference numerals
The pull rope of 1 arm spike knot 2
The connecting portion of 3 pulley yoke 4
The 5 main suspension hooks of secondary suspension hook 6
7 draw-gears
The gear rope bearing pin of 301 the 3rd pulley 302
303 clamping plates
501 the 4th pulleys
The second pulley of 601 first pulley 602
603 suspension hooks
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, in the case where opposite explanation is not made, the noun of locality for using such as " upper and lower " typically refers to suspension hook machine
Structure vertically normally hangs orientation when using.
The invention provides a kind of hook mechanism, wherein, the hook mechanism includes：Arm spike knot 1, the arm spike knot 1 is provided with
Draw-gear 7；Main suspension hook 6, the main suspension hook 6 has first pulley 601, second pulley 602 and suspension hook 603；Pulley yoke 3, the cunning
Wheel carrier 3 includes the 3rd pulley 301, and the pulley yoke 3 is fixed on the arm spike knot 1；Secondary suspension hook 5, the secondary suspension hook 5 includes the
Four pulleys 501；Pull rope 2, the first end of the pull rope 2 is drawn by the draw-gear 7, and the second end is provided with connection
Portion 4；Wherein, the secondary suspension hook 5 can selectively removably be connected to the main suspension hook 6 or the pulley yoke 3, described to lead
Messenger 2 bypasses the first pulley 601, the 4th pulley 501 and the second pulley 602, and the pull rope 2 successively
The second end the pulley yoke 3 or the secondary suspension hook 5 can be selectively connected to by connecting portion 4.
In above-described hook mechanism, conversion of the secondary suspension hook 5 for hook mechanism between different working conditions
Play an important role, the first pulley 601, the 4th pulley 501 and the second pulley are bypassed successively in pull rope 2
In the case of 602, when secondary suspension hook 5 is connected to main suspension hook 6, main suspension hook 6 and secondary suspension hook 5 turn into single entirety, can be considered single
Fixed pulley, and when secondary suspension hook 5 is connected to pulley yoke 3, first pulley 601, the 4th pulley 501 and second pulley 602 are respective
It is independent so that hook mechanism can be converted to more powerful working condition.In addition, the second end of pull rope 2 is connected to difference
Position, be matched with the connected mode of secondary suspension hook 5, it is possible to achieve various different working conditions, i.e. the lifting side of different multiplying
Formula.When the hook mechanism is changed between different working condition, secondary suspension hook 5 remains winding state, it is not necessary to which dismounting is secondary
Suspension hook 5, reduces workload, improves operating efficiency.
Specifically, the hook mechanism optionally can be worked with first state, the second state and the third state,
In said first condition, as shown in figure 1, the secondary suspension hook 5 is connected to the pulley yoke 3, the pull rope 2 according to
It is secondary to bypass the first pulley 601, the 4th pulley 501 and the second pulley 602, and the connecting portion 4 is connected to
The pulley yoke 3；
In said second condition, as shown in Fig. 2 the secondary suspension hook 5 is connected to the main suspension hook 6, the pull rope 2 according to
It is secondary to bypass the first pulley 601, the 4th pulley 501, the second pulley 602 and the 3rd pulley 301, and
The connecting portion 4 of the pull rope 2 is connected to the secondary suspension hook 5；
Under the third state, as shown in figure 3, the secondary suspension hook 5 is connected to the main suspension hook 6, the pull rope 2 according to
It is secondary to bypass the first pulley 601, the 4th pulley 501 and the second pulley 602, and the pull rope 2 is described
Connecting portion 4 is connected to the pulley yoke 3.
The first state is four multiplying power working conditions, and second state is three multiplying power working conditions, the 3rd shape
State is two multiplying power working conditions, correspondingly, plays hanging object and often rises (or decline) height for unit, and draw-gear 7 is respectively required for
Pack up the pull rope 2 of (or release) four unit lengths, three unit lengths, two unit lengths, more powerful work
It is larger or lift by crane situation in small distance that state can be used for hoisting weight, compared with the working condition of low range can be used for hoisting weight compared with
Small or lifting situation in larger distance.
Further, the first pulley 601, the second pulley 602 and the diameter of the 4th pulley 501 are identical,
1.3-1.6 times of the diameter of a diameter of described first pulley 601 of the 3rd pulley 301, the first pulley 601 and described
The high settings such as two pulleys 602, the rotation axis of the 4th pulley 501 is aligned in the first pulley 601 and described second and slides
The line midpoint of the rotation axis of wheel 602.It is further preferred that a diameter of described first pulley 601 of the 3rd pulley 301
1.5 times of diameter.In this structure, as shown in figure 1, being wound between first pulley 601, the pulley 501 of second pulley 602 and the 4th
Two sections of keeping parallelisms of pull rope 2 and vertically extension, also, as shown in Fig. 2 1.5 times of diameters of the 3rd pulley 501 can also be allowed
It is wound on two sections of keeping parallelisms of pull rope 2 of the 3rd pulley 501 and extends vertically.Certainly, the diameter of the 3rd pulley 501 can keep
Be 1.3-1.6 times of the diameter of first pulley 601, be now wound on two sections of pull ropes 2 of the 3rd pulley 501 and vertical direction exist compared with
Small angle, can ignore substantially.In the case where multistage pull rope 2 keeps extending vertically, pull rope 2 is made without horizontal component
With, it is to avoid cause horizontally tracting to act on all parts, improve integrally-built stability.
Further, the draw-gear 7 is installed on the arm spike knot 1 first end in the horizontal direction, the pulley yoke 3
The arm spike knot 1 the second end in the horizontal direction is installed on, the pulley yoke 3 is formed with and be aligned in respectively the 3rd pulley
Two tie points of the vertical tangent line of two of 301, it is simultaneously right vertically that one of them described tie point can be connected to the secondary suspension hook 6
The rotation axis of the 4th pulley 501 described in Qi Yu, another described tie point can be connected to the connection of the pull rope 2
Portion 4, rotation axis and the horizontal range of the draw-gear 7 of the 3rd pulley 301 are the diameter of the first pulley 601
2-2.4 times (preferably 2.25 times).As shown in figure 1, two tie points of pulley yoke 3 are respectively formed at lower end, two tie points
The 3rd pulley 301 two articles of tangent lines vertically are crossed respectively, and secondary suspension hook 5 is also correspondingly erected with the tie point of pulley yoke 3
The rotation axis of the 4th pulley 501 of straight alignment, so as to ensure the hook mechanism in first state, the second state and the third state
Under, any one section vertically extension of the pull rope 2 in pulley room, it is to avoid pull rope 2 produces horizontally tracting effect.
In addition, the arm spike knot 1 is provided with auxiliary sling point, the main suspension hook 6 is provided with auxiliary hanging hole, the hook mechanism
Also include lifting rope, the main suspension hook 6 can be hung on the auxiliary sling point by the lifting rope through the auxiliary hanging hole.Arm
The auxiliary sling point of at least two horizontal intervals can be set on spike knot 1, is corresponded to, main suspension hook 6 can set two auxiliary of horizontal interval
Hanging hole, so as to smoothly hang main suspension hook 6 by two lifting ropes.The hook mechanism in conversion work state, by institute
State lifting rope and hang main suspension hook 6, staff only can just complete conversion operation at arm spike knot 1.
In addition, the connecting portion 4 includes pull rope anti-twisting equipment.Pull rope anti-twisting equipment mainly prevents pull rope 2 from rotating
Knot, it is ensured that pull rope 2 can successfully be wound on pulley part and follow pulley part rolling traction.Connecting portion 4 can include hook
Shape part, so as to be hung in pulley yoke 3 or the secondary corresponding position of suspension hook 5 by the hook-like part.
In addition, the lower end of the secondary suspension hook 5 is formed with detent and the upper end of the main suspension hook 6 is formed with convex
Block, or, the lower end of the secondary suspension hook 5 is formed with locating convex block and the upper end of the main suspension hook 6 is formed with detent,
The locating convex block is inserted in the state of the detent, and the secondary suspension hook 5 can be installed on the main suspension hook 6.It is described fixed
Position projection and the detent can ensure that secondary suspension hook 5 and main suspension hook 6 are installed with the relative position of standard, particularly, the 4th
The rotation axis of pulley 501 is aligned in first pulley 601 and the line midpoint of second pulley 602.Secondary suspension hook 5 can divide with main suspension hook 6
Connection lug is not formed with, and realizes the company of connection, secondary suspension hook 5 and pulley yoke 3 through the connection lug of the two by bearing pin part
Connecing can also adopt in such a way.
Additionally, the pulley yoke 3 includes two clamping plates 303 being spaced, the 3rd pulley 301 is clamped in two folders
Between plate 303, gear rope bearing pin 302 is removably equipped with two clamping plates 303, the gear rope bearing pin 302 is around described
3rd pulley 301 is set, and the vertical height for keeping off rope bearing pin 302 is not less than the rotation axis of the 3rd pulley 301.
As shown in figure 4, being connected by plate between clamping plate 303, the rotating shaft terminal of the 3rd pulley 301 is respectively arranged in two clamping plates
303.Gear rope bearing pin 302 is located at around upper half circumference (being namely wound with the part of pull rope 2) of the 3rd pulley 301, gear rope
The periphery of the pulley 301 of bearing pin 302 and the 3rd keeps the interval of very little, it is to avoid pull rope 2 accidentally slides out, and especially, is needing
By pull rope 2 from the 3rd pulley 301 extract out when, can remove gear rope bearing pin 302, make pull rope 2 the second end (connecting portion 4
Volume is relatively large) more successfully extract out.
In addition, main suspension hook 6 and secondary suspension hook 5 can also use the structure similar with pulley yoke 3, i.e., clamp peace by two clamping plates
Dress pulley part, the lower end of main suspension hook 6 can install suspension hook 603.
Specifically, the draw-gear 7 includes fixed pulley or winding plant.Fixed pulley, pull rope can be installed on arm spike knot 1
1 first end is around in the fixed pulley rear haulage, or, winding plant can be installed on arm spike knot 1, packed up by winding plant or put
Go out pull rope 2.
In addition, the invention provides a kind of conversion method of the working condition of hook mechanism, the conversion method includes：
A. the hook mechanism from method from the first state to second State Transferring：The main suspension hook 6 is carried
It is raised to the height close with the pulley yoke 3；The secondary suspension hook is connected to the main suspension hook 6, and releases the secondary suspension hook 5
With the connection between the pulley yoke 3；The connection of the connecting portion 4 and the pulley yoke 3 is released, by the of the pull rope 2
Two ends bypass the 3rd pulley 301, and the connecting portion 4 is connected into the secondary suspension hook 5；
B. it is described to state the method that hook mechanism is changed from second state to the third state：By the main suspension hook 6
Lift the height close with the pulley yoke 3；The connection of the connecting portion 4 and the secondary suspension hook 5 is released, releasing is wound on described
Pull rope 2 on 3rd pulley 301, the pulley yoke 3 is connected to by the connecting portion 4；
C. the method that the hook mechanism is changed from the first state to the third state：The main suspension hook 6 is carried
It is raised to the height close with the pulley yoke 3；The secondary suspension hook is connected to the main suspension hook 6, and releases the secondary suspension hook 5
With the connection between the pulley yoke 3.
In addition, by the hook mechanism from the third state to the conversion of first state or the second state and by the second state
To first state conversion when, after the main suspension hook 6 lifted into the height close with the pulley yoke 3, using above-mentioned right
The backout of induction method and inverse operation.
In addition, after the main suspension hook 6 lifted into the height close with the pulley yoke 3, using lifting rope by the master
Suspension hook 6 is hung on the arm spike knot 1.As described above, arm spike knot 1 is provided with auxiliary sling point, main suspension hook 6 is provided with auxiliary hanging hole,
Thus main suspension hook 6 can be lifted by the lifting rope in the working condition transfer process of the hook mechanism, staff is only
Associative operation can be completed at arm spike knot 1, the lifting rope can be removed after conversion work is completed.Also, in three kinds of work
In the conversion of state, secondary suspension hook 5 is connected to main suspension hook 6 or pulley yoke 3, particularly, pull rope 2 is wound with all the time, therefore, eliminate
The operation of pull rope is removed and installed in secondary suspension hook 5, the efficiency of hook mechanism working condition conversion is improve.
In addition, present invention also offers a kind of tower crane, wherein, the tower crane installation has hook mechanism described in above scheme, with
Realize lifting by crane by the hook mechanism.
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
The detail in mode is applied, in range of the technology design of the invention, various letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy is no longer separately illustrated.
Additionally, can also be combined between a variety of implementation methods of the invention, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (14)
1. a kind of hook mechanism, it is characterised in that the hook mechanism includes：
Arm spike knot (1), the arm spike knot (1) is provided with draw-gear (7)；
Main suspension hook (6), the main suspension hook (6) is with first pulley (601), second pulley (602) and suspension hook (603)；
Pulley yoke (3), the pulley yoke (3) includes the 3rd pulley (301), and the pulley yoke (3) is fixed on the arm spike knot
(1)；
Secondary suspension hook (5), the secondary suspension hook (5) includes the 4th pulley (501)；
Pull rope (2), the first end of the pull rope (2) is drawn by the draw-gear (7), and the second end is provided with connection
Portion (4)；
Wherein, the secondary suspension hook (5) can selectively removably be connected to the main suspension hook (6) or the pulley yoke (3),
The pull rope (2) bypasses the first pulley (601), the 4th pulley (501) and the second pulley (602) successively,
And the second end of the pull rope (2) can be selectively connected to the pulley yoke (3) or institute by the connecting portion (4)
State secondary suspension hook (5).
2. hook mechanism according to claim 1, it is characterised in that the hook mechanism can optionally with the first shape
The work of state, the second state and the third state,
In said first condition, the secondary suspension hook (5) is connected to the pulley yoke (3), and the pull rope (2) bypasses institute successively
First pulley (601), the 4th pulley (501) and the second pulley (602) are stated, and the connecting portion (4) is connected to
The pulley yoke (3)；
In said second condition, the secondary suspension hook (5) is connected to the main suspension hook (6), and the pull rope (2) bypasses institute successively
First pulley (601), the 4th pulley (501), the second pulley (602) and the 3rd pulley (301) are stated, and
The connecting portion (4) is connected to the secondary suspension hook (5)；
Under the third state, the secondary suspension hook (5) is connected to the main suspension hook (6), and the pull rope (2) bypasses institute successively
First pulley (601), the 4th pulley (501) and the second pulley (602) are stated, and the connecting portion (4) is connected to
The pulley yoke (3).
3. hook mechanism according to claim 2, it is characterised in that the first pulley (601), the second pulley
And the 4th pulley (501) diameter is identical, a diameter of described first pulley (601) of the 3rd pulley (301) (602)
1.3-1.6 times of diameter, the high setting such as the first pulley (601) and the second pulley (602), the 4th pulley
(501) rotation axis is aligned in the line of the rotation axis of the first pulley (601) and the second pulley (602)
Point.
4. hook mechanism according to claim 3, it is characterised in that the draw-gear (7) is installed on the arm spike knot
(1) first end in the horizontal direction, the pulley yoke (3) is installed on the arm spike knot (1) the second end in the horizontal direction, described
Pulley yoke (3) is formed with two two tie points of vertical tangent line for being aligned in the 3rd pulley (301) respectively, one of them
The tie point can be connected to the secondary suspension hook (5) and be vertically aligned in the rotation axis of the 4th pulley (501), another
The individual tie point can be connected to the connecting portion (4) of the pull rope (2), the rotary shaft of the 3rd pulley (301)
Line and 2-2.4 times that the horizontal range of the draw-gear (7) is the first pulley (601) diameter.
5. hook mechanism according to claim 1, it is characterised in that the arm spike knot (1) is provided with auxiliary sling point, described
Main suspension hook (6) is provided with auxiliary hanging hole, and the hook mechanism also includes lifting rope, and the lifting rope can pass through the auxiliary hanging hole
The main suspension hook (6) is hung on the auxiliary sling point.
6. hook mechanism according to claim 1, it is characterised in that the connecting portion (4) includes pull rope anti-twisting equipment.
7. hook mechanism according to claim 1, it is characterised in that it is recessed that the lower end of the secondary suspension hook (5) is formed with positioning
The upper end of groove and the main suspension hook (6) is formed with locating convex block, or the lower end of the secondary suspension hook (5) is formed with locating convex block
And the upper end of the main suspension hook (6) is formed with detent, in the state of the locating convex block inserts the detent,
The secondary suspension hook (5) can be installed on the main suspension hook (6).
8. hook mechanism according to claim 1, it is characterised in that the pulley yoke (3) is including the interval that is stacked on one another
Two clamping plates (303), the 3rd pulley (301) is clamped between two clamping plates (303), two clamping plates (303)
On be removably equipped with gear rope bearing pin (302), it is described gear rope bearing pin (302) set around the 3rd pulley (301), and
The vertical height of gear rope bearing pin (302) is not less than the rotation axis of the 3rd pulley (301).
9. hook mechanism according to claim 1, it is characterised in that the draw-gear (7) includes fixed pulley or elevator
Device.
10. a kind of conversion method of the working condition of hook mechanism, it is characterised in that the hook mechanism is claim 2 institute
The hook mechanism stated, the conversion method include the hook mechanism from side from the first state to second State Transferring
Method：
By main suspension hook (6) lifting to the height close with the pulley yoke (3)；
The secondary suspension hook is connected to the main suspension hook (6), and releases the company between the secondary suspension hook and the pulley yoke (3)
Connect；
The connection of the connecting portion (4) and the pulley yoke (3) is released, the second end of the pull rope (2) is bypassed described
Three pulleys (301), and the connecting portion (4) is connected to the secondary suspension hook (5).
11. conversion methods according to claim 10, it is characterised in that the conversion method also includes the hook mechanism
The method changed to the third state from second state：
By main suspension hook (6) lifting to the height close with the pulley yoke (3)；
The connection of the connecting portion (4) and the secondary suspension hook (5) is released, releasing is wound on the traction on the 3rd pulley (301)
Rope (2), the pulley yoke (3) is connected to by the connecting portion (4).
12. conversion methods according to claim 10, it is characterised in that the conversion method also includes the hook mechanism
The method changed to the third state from the first state：
By main suspension hook (6) lifting to the height close with the pulley yoke (3)；
The secondary suspension hook (5) is connected to the main suspension hook (6), and is released between the secondary suspension hook and the pulley yoke (3)
Connection.
13. conversion methods according to claim 11, it is characterised in that arrive and the cunning main suspension hook (6) lifting
After the close height of wheel carrier (3), the main suspension hook (6) is hung on the arm spike knot (1) using lifting rope.
A kind of 14. tower cranes, it is characterised in that hook mechanism described in any one in the with good grounds claim 1-9 of the tower crane installation.
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| CN201710010534.6A CN106744263B (en) | 2017-01-06 | 2017-01-06 | The conversion method and tower crane of hook mechanism and its working condition |
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| CN201710010534.6A CN106744263B (en) | 2017-01-06 | 2017-01-06 | The conversion method and tower crane of hook mechanism and its working condition |
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| CN106744263B CN106744263B (en) | 2018-01-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921539A (en) * | 2019-11-23 | 2020-03-27 | 兰东明 | Hoist mechanism is used in outdoor installation of communication cabinet |
| CN113321113A (en) * | 2021-05-31 | 2021-08-31 | 海南三友海洋科技有限公司 | Clamping, hanging and releasing device for fish reef transportation |
| CN113530262A (en) * | 2021-08-25 | 2021-10-22 | 宁玉欣 | Traction device for mounting circular steel tube truss hollow rod piece and using method |
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| CN105712200A (en) * | 2016-04-12 | 2016-06-29 | 南通润邦重机有限公司 | Lifting hook pulley with function of rapidly regulating rope reeling rate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921539A (en) * | 2019-11-23 | 2020-03-27 | 兰东明 | Hoist mechanism is used in outdoor installation of communication cabinet |
| CN110921539B (en) * | 2019-11-23 | 2021-03-26 | 安溪县桃舟乡同盛茶叶专业合作社 | Hoist mechanism is used in outdoor installation of communication cabinet |
| CN113321113A (en) * | 2021-05-31 | 2021-08-31 | 海南三友海洋科技有限公司 | Clamping, hanging and releasing device for fish reef transportation |
| CN113530262A (en) * | 2021-08-25 | 2021-10-22 | 宁玉欣 | Traction device for mounting circular steel tube truss hollow rod piece and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106744263B (en) | 2018-01-30 |
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Effective date of registration: 20190715 Address after: 415000 Changde Science and Technology Innovation Business Incubation Industrial Park, Changde High-tech Industrial Development Zone, Guanxi Town, Dingcheng District, Changde City, Hunan Province Patentee after: HUNAN ZHONGLIAN ZHONGKE CONSTRUCTION HOISTING MACHINERY Co.,Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |