CN106185646A - A kind of tower crane standard knot introducing device - Google Patents
A kind of tower crane standard knot introducing device Download PDFInfo
- Publication number
- CN106185646A CN106185646A CN201610768195.3A CN201610768195A CN106185646A CN 106185646 A CN106185646 A CN 106185646A CN 201610768195 A CN201610768195 A CN 201610768195A CN 106185646 A CN106185646 A CN 106185646A
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- CN
- China
- Prior art keywords
- dolly
- standard knot
- movable pulley
- tower body
- pulley
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
- B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
- B66C23/344—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes adapted for transport purposes
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The open a kind of tower crane standard knot introducing device of the present invention.This device includes the top bearing being positioned at tower body upper end, it is arranged on the crane arm of bearing upper end, top in hinged way, it is sleeved on the peripheral stock between bearing lower end, top and tower body upper end, the forward and backward dolly being arranged on crane arm bottom guide track, it is arranged on front dolly the advancing slip wheels being made up of front fixed pulley and front movable pulley, is arranged on rear dolly the rear wheel group being made up of rear fixed pulley and rear movable pulley；The installation site that space is standard knot to be introduced in the inner chamber of peripheral stock and between top bearing and two abutting ends of tower body；Standby pin shaft hole is all offered on corresponding fixed pulley front and back at forward and backward movable pulley.The present invention need not separately to add standby during tower body is increased, and is not required to dismount the connection between tower body and top bearing with repeating, it is achieved that lifting operation continuously, substantially increases jacking efficiency, take into account the balance of derrick runway girder simultaneously.
Description
Technical field
The present invention relates to hoisting machinery technical field, particularly relate to the tower crane a kind of mark when lifting operation
Quasi-joint introducing device.
Background technology
Along with popularizing of skyscraper, construction machinery, in order to meet the needs of corresponding construction height, the most all uses oneself
The mode of jacking increases the tower body of tower crane.In order to reduce tower crane moment of flexure during jacking, it is generally required to regulation derrick runway girder and top
The balance of portion's bearing: the center of gravity of superstructure to be allowed generally within top seating position near.General flat arm tower crane is introducing
During standard knot be all the suspension hook utilizing self to lift standard knot, so may dispense with a set of retraction mechanism.But due to
When utilizing self suspension hook to introduce standard knot, hoisting point position relatively tower body, lifting standard knot produce forward moment with hang
Hang over opposing torque difference produced by the rear balancing weight of derrick runway girder tail end too big, make crane arm disequilibrium that hypsokinesis to occur
Trend.Therefore, this can move suspension hook after being accomplished by being reliably connected tower body and top bearing, the most often introduces a feast-brand mark
Quasi-joint is accomplished by a tower body and top bearing connects dismounting once, and suspension hook needs to lift twice, just can complete a standard knot
Lifting operation.Because there is gap between peripheral stock and tower body, and top bearing ratio of rigidity being relatively big, top bearing and tower body
Be difficult to centring during connection, thus the connection between bearing and tower body is tower body increase during operate the most troublesome one group even
Connect.Just because of this, the lifting operation inefficiency during causing tower body to be increased, account for the three of the whole standard knot supernumerary segment time
/ mono-.
Summary of the invention
The purpose of the present invention is just for a kind of tower crane standard provided in place of above-mentioned the deficiencies in the prior art
Joint introducing device.Present invention hanging component by tower crane self during tower body is increased lifts and introduces standard knot, no
Need separately to add standby, be not required to dismount the connection between tower body and top bearing with repeating, achieve continuous jacking at lower cost
Operation, substantially increases the jacking efficiency of tower crane, can take into account the balance of derrick runway girder simultaneously.
The tower crane standard knot introducing device of the present invention includes the top bearing being positioned at tower body upper end, in hinged way
It is arranged on the crane arm of bearing upper end, top, is sleeved on the peripheral stock between bearing lower end, top and tower body upper end, is arranged on
Forward and backward dolly on crane arm bottom guide track, is arranged on front dolly the advancing slip wheels being made up of front fixed pulley and front movable pulley,
It is arranged on rear dolly the rear wheel group being made up of rear fixed pulley and rear movable pulley；Wherein, in the inner chamber of described peripheral stock,
And the installation site that space is standard knot to be introduced between top bearing and two abutting ends of tower body；Before described,
Rear movable pulley with all offer on corresponding forward and backward fixed pulley standby pin shaft hole (the most as the case may be, front running block and
Rear movable pulley both can be connected work, it is possible to works independently.When the most front running block works independently, only need to be by rear dynamic cunning
The position, standby pin shaft hole hole that rear movable pulley in wheel is corresponding with on rear fixed pulley aligns, and then fixes with standby bearing pin.This
Time after, movable pulley and rear fixed pulley only have guide effect, and its function is equivalent to the leading block that hoists.In like manner, rear movable pulley list
When solely working, only position, standby pin shaft hole hole corresponding with on front fixed pulley for the front movable pulley in front running block need to be aligned, so
Fix with standby bearing pin afterwards).
In the present invention, the haulage cable for driving described forward and backward dolly to move horizontally is from hoist engine I extraction, one end
Being fixed on the front end of front dolly after pile warp traction leading block, other end pile warp draws leading block and after rear dolly passes
(front dolly and rear dolly both can be connected synchronous translational, it is possible to individually translate to be fixed on the rear end of front dolly.To be introduced
During standard knot lifting lifting operation, haulage cable can be fixed with rear dolly, makes forward and backward dolly keep certain distance, synchronizes
Mobile；When normal hoisting heavy at ordinary times, haulage cable and rear dolly are not connected to, and the most forward and backward dolly can individually translate).
In the present invention, the hoist rope for the lifting of described forward and backward assembly pulley is from hoist engine II extraction, pile warp successively
Hoist and be fixed on the front end of crane arm after leading block, rear wheel group, advancing slip wheels.
Heretofore described front movable pulley is by the standby pin corresponding at both when needing and fix with front fixed pulley and connect
Axis hole installs standby bearing pin realize connect (according to practical situation, when current movable pulley needs to be fixed on front dolly (before
Movable pulley needs fixing connection with front fixed pulley), it is only necessary to front movable pulley is raised to top, and makes front movable pulley fixed sliding with front
Position, standby pin shaft hole hole corresponding on wheel aligns, and then fixes with standby bearing pin.The most front movable pulley is with front fixed pulley only
Only having guide effect, its function is equivalent to the leading block that hoists).
Heretofore described rear movable pulley is by the standby pin corresponding at both when needing and fix with rear fixed pulley and connect
Axis hole installs standby bearing pin realize connect (according to practical situation, when rear movable pulley needs to be fixed on rear dolly (after
Movable pulley needs fixing connection with rear fixed pulley), it is only necessary to rear movable pulley is raised to top, and makes rear movable pulley fixed sliding with rear
Position, standby pin shaft hole hole corresponding on wheel aligns, and then fixes with standby bearing pin.After now, movable pulley is with rear fixed pulley only
Only having guide effect, its function is equivalent to the leading block that hoists).
Heretofore described traction leading block is arranged on crane arm.
The heretofore described leading block that hoists is arranged on crane arm.
It is provided with the otic placode swashed for supporting peripheral stock on the most described tower body and (relies on the ear on tower body
Plate, peripheral stock is climb along tower body).
The operation principle of the present invention is as follows:
Present invention hanging component by tower crane self during tower body is increased lifts and introduces standard knot, it is not necessary to separately add
Equipment, is not required to, with the connection repeated between dismounting tower body and top bearing, achieve continuous lifting operation at lower cost, significantly
Improve the jacking efficiency of tower crane, the balance of derrick runway girder can be taken into account simultaneously.
More specifically, the present invention lifts by the hanging component of tower crane self and introduces standard knot, it is not necessary to separately add
Standby, i.e. first pass through peripheral stock between top bearing and two abutting ends of tower body, define the installation sky of standard knot to be introduced
Between；Then the rear balancing weight being mounted on crane arm rear end tails is balanced by the front-end weight block mounted below front dolly, the most just
It is to make both relative to positive and negative moment is roughly the same produced by bearing hinged place, top, cancel out each other, i.e. guarantees at crane arm
In poised state or somewhat forward-lean state (when being in somewhat forward-lean state, the bottom surface of crane arm extension forward be fixed on
The support column contact of top bearing leading flank).All the time poised state or somewhat forward-lean state it is in, thus due to crane arm
After can utilizing, dolly lifts by crane safely, translates standard knot to be introduced to installation site；If needing continuous jacking to increase
Tower body, the standard knot to be introduced only need to being in place by the preceding paragraph is connected with tower body end face, then by periphery stock along tower body
Upper shifting, lifts by crane continuously followed by rear dolly, translates next section of standard knot to be introduced, in other words, be not required to repeating
Connection between dismounting tower body and top bearing, achieves continuous lifting operation at lower cost, substantially increases self-lifting type tower
The jacking efficiency of machine, can take into account the balance of derrick runway girder simultaneously.
Lifted by crane additionally, the present invention both can realize continuous jacking during tower body is increased, translated multistage mark to be introduced
Quasi-joint, it is also possible to the upper end face of the one section of standard knot to be introduced that will be located in extreme higher position enters normal rising with top bearing after being connected
Hang the required hoisting heavy of state lifting.And according to practical situation during specifically used, optional front running block and after
Movable pulley is connected work, or select to work independently (only need to be by corresponding with on fixed pulley for temporary transient no movable pulley standby
Position, pin shaft hole hole aligns, and then installs standby bearing pin and fixes)；The both optional synchronizations that is connected of front dolly and rear dolly are flat
Move (haulage cable and rear dolly are not connected to), it is possible to select individually translation (haulage cable can be fixed) with rear dolly.
Beneficial effects of the present invention is as follows:
Present invention hanging component by tower crane self during tower body is increased lifts and introduces standard knot, it is not necessary to separately add
Equipment, is not required to, with the connection repeated between dismounting tower body and top bearing, achieve continuous lifting operation at lower cost, significantly
Improve the jacking efficiency of tower crane, the balance of derrick runway girder can be taken into account simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation (being also the present invention state diagram when lifting by crane standard knot to be introduced) of the present invention.
View when Fig. 2 is to carry out front dolly counterweight before introducing lifting (is also individually with rear dolly simultaneously
View when normally lifting by crane).
Fig. 3 is the wiring figure of haulage cable.
Fig. 4 is the wiring figure (when forward and backward assembly pulley is used alone) of hoist rope.
Fig. 5 is the view (when forward and backward assembly pulley is used together) during the normal hoisting heavy of the present invention.
Fig. 6 is the wiring figure (when forward and backward assembly pulley is used together) of hoist rope.
Fig. 7 is the structural representation of advancing slip wheels (or rear wheel group).
Fig. 8 is the view being incorporated into before installation site of standard knot to be introduced.
Sequence number in figure: 1, tower body, 1-1, otic placode, 2, top bearing, 3, rear dolly, 4, rear wheel group, 4-1, rear fixed pulley,
4-2, rear movable pulley, 5, standard knot to be introduced, 6, front-end weight block, 7, advancing slip wheels, 7-1, front fixed pulley, 7-2, front movable pulley,
8, front dolly, 9, haulage cable, 10, hoist rope, 11, crane arm, 12, rear balancing weight, 13, hoist engine I, 14, traction
Leading block, 15, hoist engine II, 16, hoist leading block, 17, peripheral stock, 18, hook assembly, 19, standby bearing pin, 20,
Standby pin shaft hole, 21, support column, L, spacing between forward and backward dolly when introducing.
Detailed description of the invention
The present invention is further described below with reference to example (accompanying drawing):
As shown in Figure 1, 2, the tower crane standard knot introducing device of the present invention includes the top bearing 2 being positioned at tower body 1 upper end,
It is arranged on the crane arm 11 of top bearing 2 upper end in hinged way, is sleeved between top bearing 2 lower end and tower body 1 upper end
Peripheral stock 17, the forward and backward dolly 8,3 being arranged on crane arm 11 bottom guide track, it is arranged on front dolly 8 by front fixed pulley 7-
The advancing slip wheels 7 of 1 and front movable pulley 7-2 composition, are arranged on rear dolly 3 and are made up of rear fixed pulley 4-1 and rear movable pulley 4-2
Rear wheel group 4；Wherein, in the inner chamber of described peripheral stock 17 and be positioned at top bearing 2 and tower body 1 two abutting ends it
Between the installation site that space is standard knot 5 to be introduced；At described forward and backward movable pulley 7-2,4-2 and corresponding forward and backward fixed pulley
(the most as the case may be, front running block 7 and rear movable pulley 4 both can be linked to be all to offer standby pin shaft hole on 7-1,4-1
One body running, it is possible to work independently.When the most front running block 7 works independently, only need to be by the rear movable pulley 4-in rear movable pulley 4
The 2 standby pin shaft hole 20 hole positions corresponding with on rear fixed pulley 4-1 align, and then fix with standby bearing pin 19.Move the most afterwards
Pulley 4-2 and rear fixed pulley 4-1 only has guide effect, and its function is equivalent to the leading block 16 that hoists.In like manner, rear movable pulley
4 when working independently, only need to be by standby pin shaft hole 20 corresponding on the front movable pulley 7-2 in front running block 7 and front fixed pulley 7-1
Position, hole aligns, and then fixes with standby bearing pin 19, sees Fig. 2, Fig. 7).
In the present invention, the haulage cable 9 for driving described forward and backward dolly 8,3 to move horizontally is to draw from hoist engine I 13
Go out, after one end pile warp traction leading block 14, be fixed on the front end of front dolly 8, other end pile warp traction leading block 14 and from
Rear dolly 3 be fixed on after passing front dolly 8 rear end (see Fig. 3, front dolly 8 and rear dolly 3 both can be connected with
Step translation, it is possible to individually translate.When standard knot to be introduced lifting lifting operation, haulage cable 9 can be fixed with rear dolly,
Forward and backward dolly is made to keep certain distance, synchronizing moving；When normal hoisting heavy at ordinary times, haulage cable 9 and rear dolly 3 are not
Connecting, the most forward and backward dolly can individually translate).
In the present invention, the hoist rope 10 for the lifting of described forward and backward assembly pulley 7,4 is to draw from hoist engine II 15, depends on
Secondary pile warp hoists and is fixed on the front end of crane arm 11 after leading block 16, rear wheel group 4, advancing slip wheels 7 and (sees Fig. 4, figure
6).
Heretofore described front movable pulley 7-2 and front fixed pulley 7-1 needs to fix when connecting by corresponding at both
After position, standby pin shaft hole 20(hole aligns) in install standby bearing pin 19 and realize connecting and (see Fig. 7, according to practical situation, currently
When movable pulley 7-2 needs to be fixed on front dolly 8 (front movable pulley 7-2 and front fixed pulley 7-1 needs fixing connection), it is only necessary to
Front movable pulley 7-2 is raised to top, and allows position, standby pin shaft hole 20 hole corresponding on front movable pulley 7-2 and front fixed pulley 7-1
Align, then fix with standby bearing pin 19.The most front movable pulley 7-2 and front fixed pulley 7-1 only has guide effect, its
Function is equivalent to the leading block 16 that hoists).
Heretofore described rear movable pulley 4-2 and rear fixed pulley 4-1 needs to fix when connecting by corresponding at both
After position, standby pin shaft hole 20(hole aligns) in install standby bearing pin 19 realize connecting (see Fig. 7, according to practical situation, when after
When movable pulley 4-2 needs to be fixed on rear dolly 3 (rear movable pulley 4-2 and rear fixed pulley 4-1 needs fixing connection), it is only necessary to
Rear movable pulley 4-2 is raised to top, and allows position, standby pin shaft hole 20 hole corresponding on rear movable pulley 4-2 and rear fixed pulley 4-1
Align, then fix with standby bearing pin 19.After now, movable pulley 4-2 and rear fixed pulley 4-1 only has guide effect, its
Function is equivalent to the leading block 16 that hoists).
Heretofore described traction leading block 14 is arranged on crane arm 11.
The heretofore described leading block 16 that hoists is arranged on crane arm 11.
It is provided with the otic placode 1-1 swashed for supporting peripheral stock 1 on the most described tower body 1 and (relies on tower body 1
Otic placode 1-1, peripheral stock 17 is climb along tower body 1).
The specifically used situation of the present invention is as follows:
(1) utilize and present invention introduces standard knot and add a liter tower crane height
As shown in Figure 1, Figure 2, Figure 3, Figure 4, before standard knot 5 to be introduced introduces, first, should be according to the actual feelings of complete machine
The weight of the front-end weight block 6 that condition mounts below spacing L between forward and backward dolly and front dolly 8 when determining introducing, i.e. needs full
Foot is mounted on the front-end weight block 6 below front dolly 8 and is mounted on the rear balancing weight 12 of crane arm 11 rear end tails relative to top
Positive and negative moment produced by bearing 2 hinged place roughly the same (seeing Fig. 2), i.e. can ensure that crane arm 11 be in poised state or
Somewhat forward-lean state (be in somewhat forward-lean state time, the bottom surface of crane arm 11 extension forward be fixed on front side of top bearing 2
The support column 21 in face contacts)；Then, the position of rear dolly 3 is fixed, mobile front dolly 8, move to meet during introducing forward and backward
During spacing L between dolly, haulage cable 9 and rear dolly 3 are fixed, make forward and backward dolly 8,3 can move to together introduce
Lifting position；Then, rear movable pulley 4-2 is fixedly connected with rear fixed pulley 4-1 and rear dolly 4, the most first allows rear movable pulley
4-2 aligns with the position, standby pin shaft hole 20 hole in rear fixed pulley 4-1, then installs standby bearing pin 19；And then, before putting down
Movable pulley 7-2, hangs front-end weight block 6 on hook assembly 18, and hoist balancing weight 6, by standby bearing pin 19 by front movable pulley
7-2 is fixedly connected with rear fixed pulley 7-1 and front dolly 8；It follows that pull out between rear movable pulley 4-2 and rear fixed pulley 4-1
Standby bearing pin 19, unclamp rear movable pulley 4-2, start lifting mechanism, rear dolly 3 can be freely lifted, it is possible to dynamic after utilization
Pulley 4-2 and hook assembly 18 lift standard knot 5 to be introduced, and now front dolly 8 and front-end weight block 6 play regulation crane arm 11
The effect (seeing Fig. 1) of balance.Follow-up installation is exactly after standard knot 5 to be introduced is lifted to desired height, outside being drawn in by level
Enclose the installation site in stock 17 inner chamber, after para-position, the bottom of standard knot 5 to be introduced and the top of tower body 1 are attached solid
Fixed (seeing Fig. 8).
If needing continuous jacking to increase tower body, periphery stock 17 just moves along tower body 1 and is supported on peripheral stock 17
On corresponding otic placode 1-1, final peripheral stock 17 is sleeved on described top bearing 2 and is positioned at the tower body the superiors and is newly introduced and connects
The periphery (seeing Fig. 8) of corresponding two abutting ends of the standard knot fixed, is again started up lifting mechanism, movable pulley 4-2 after utilization
And hook assembly 18 lifts second segment standard knot to be introduced 5, carry out introducing and assemble.By that analogy, repeat aforesaid operations,
The height can increased according to tower crane needs, it is not necessary to separately add standby, is not required to repeating between dismounting tower body 1 and top bearing 2
Connection, achieve continuous lifting operation at lower cost, substantially increase the jacking efficiency of tower crane, can hold concurrently simultaneously
Turn round and look at the balance of derrick runway girder 11.
(2) present invention is utilized to carry out hoisting heavy as normal lifting tower crane
If being no longer necessary to continuous jacking when increasing tower body, the bottom on the top of the superiors' standard knot with top bearing 2 is carried out
Connect fixing.Now, tower crane can serve as normally lifting by crane tower crane and uses, and carries out normal hoisting heavy (seeing Fig. 5).
During as lifting tower crane, can lift by crane or be arranged on rear dolly 3 individually with the advancing slip wheels 7 being arranged on below front dolly 8
The rear wheel group 4 of lower section is lifted by crane, it is also possible to little after utilizing the advancing slip wheels 7 being arranged on below front dolly 8 simultaneously and being arranged on
Rear wheel group 4 below car 3 is lifted by crane jointly.
When lifting by crane individually with the advancing slip wheels 7 below front dolly 8, by the rear wheel below temporary transient no rear dolly 3
Rear movable pulley 4-2 in group 4 is fixedly connected on rear fixed pulley 4-1 by standby bearing pin 19；Below rear dolly 3
When rear wheel group 4 is lifted by crane, by the front movable pulley 7-2 in the advancing slip wheels 7 below temporary transient no front dolly 8 by standby bearing pin
19 are fixedly connected on front fixed pulley 7-1.Now, be fixedly connected rear movable pulley 4-2 together and rear fixed pulley 4-1(or
Movable pulley 7-2 and front fixed pulley 7-1 before person) function only just correspond to leading block.
Meanwhile, utilize the advancing slip wheels 7 being arranged on below front dolly 8 and be arranged on the rear wheel group 4 below rear dolly 3
During lifting, for the balance of holding torque, an equalizer bar can be mounted below front movable pulley 7-2 and rear movable pulley 4-2
After hang again weight (see Fig. 5, Fig. 6, it is possible to refer to another patent application of the applicant, Application No.:
201620854802.3, entitled " a kind of many multiplying powers balanced type becomes multiplying factor device ", the most too much describe).
Claims (8)
1. a tower crane standard knot introducing device, it is characterised in that: it includes the top bearing being positioned at tower body (1) upper end
(2), it is arranged on the crane arm (11) of top bearing (2) upper end in hinged way, is sleeved on top bearing (2) lower end and tower body
(1) the peripheral stock (17) between upper end, the forward and backward dolly (8,3) being arranged on crane arm (11) bottom guide track, before being arranged on
The advancing slip wheels (7) being made up of front fixed pulley (7-1) and front movable pulley (7-2) on dolly (8), be arranged on rear dolly (3) by
The rear wheel group (4) that rear fixed pulley (4-1) and rear movable pulley (4-2) form；Wherein, at the inner chamber of described peripheral stock (17)
In and the installation position that space is standard knot to be introduced (5) that is positioned between top bearing (2) and two abutting ends of tower body (1)
Put；Standby bearing pin is all offered on corresponding forward and backward fixed pulley (7-1,4-1) described forward and backward movable pulley (7-2,4-2)
Hole.
Tower crane standard knot introducing device the most according to claim 1, it is characterised in that: be used for driving described before,
The haulage cable (9) that rear dolly (8,3) moves horizontally is to draw from hoist engine I (13), one end pile warp traction leading block
(14) being fixed on the front end of front dolly (8) after, other end pile warp traction leading block (14) also passes rear solid from rear dolly (3)
It is scheduled on the rear end of front dolly (8).
Tower crane standard knot introducing device the most according to claim 1, it is characterised in that: for described forward and backward cunning
The hoist rope (10) that wheels (7,4) lift by crane be from hoist engine II (15) draw, successively pile warp hoist leading block (16), after
The front end of crane arm (11) it is fixed on after assembly pulley (4), advancing slip wheels (7).
Tower crane standard knot introducing device the most according to claim 1, it is characterised in that: described front movable pulley (7-
2) it is by the standby pin shaft hole (20) corresponding at both installs standby bearing pin when needing and fix with front fixed pulley (7-1) and connect
(19) realize connecting.
Tower crane standard knot introducing device the most according to claim 1, it is characterised in that: described rear movable pulley (4-
2) it is by the standby pin shaft hole (20) corresponding at both installs standby bearing pin when needing and fix with rear fixed pulley (4-1) and connect
(19) realize connecting.
Tower crane standard knot introducing device the most according to claim 2, it is characterised in that: described traction leading block
(14) it is arranged on crane arm (11).
Tower crane standard knot introducing device the most according to claim 3, it is characterised in that hoist described in: leading block
(16) it is arranged on crane arm (11).
Tower crane standard knot introducing device the most according to claim 1, it is characterised in that: on described tower body (1)
It is provided with for supporting the otic placode (1-1) that peripheral stock (1) is swashed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768195.3A CN106185646A (en) | 2016-08-31 | 2016-08-31 | A kind of tower crane standard knot introducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768195.3A CN106185646A (en) | 2016-08-31 | 2016-08-31 | A kind of tower crane standard knot introducing device |
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| CN106185646A true CN106185646A (en) | 2016-12-07 |
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| CN201610768195.3A Pending CN106185646A (en) | 2016-08-31 | 2016-08-31 | A kind of tower crane standard knot introducing device |
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| CN201961997U (en) * | 2010-12-16 | 2011-09-07 | 广西建工集团建筑机械制造有限责任公司 | Electric driven platform for tower crane inner frame lifting operation |
| CN202322100U (en) * | 2011-11-16 | 2012-07-11 | 中联重科股份有限公司 | Trolley horizontal amplitude tower crane and trolley lifting appliance combined device |
| CN103407902A (en) * | 2013-08-28 | 2013-11-27 | 哈尔滨工业大学 | Arm-folding type tower crane jacking device and method for increasing height of tower crane |
| CN204661178U (en) * | 2015-05-29 | 2015-09-23 | 郑州科润机电工程有限公司 | A kind of amplitude variation trolley of large zoom rate |
| CN205132933U (en) * | 2015-09-30 | 2016-04-06 | 徐州建机工程机械有限公司 | Two load trolley structure of tower crane |
| CN206014281U (en) * | 2016-08-31 | 2017-03-15 | 郑州科润机电工程有限公司 | A kind of tower crane standard knot introducing device |
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