CN203411265U - Movable pulley block of variable-amplitude pull rod of movable arm tower crane and movable arm tower crane - Google Patents
Movable pulley block of variable-amplitude pull rod of movable arm tower crane and movable arm tower crane Download PDFInfo
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- CN203411265U CN203411265U CN201320512467.5U CN201320512467U CN203411265U CN 203411265 U CN203411265 U CN 203411265U CN 201320512467 U CN201320512467 U CN 201320512467U CN 203411265 U CN203411265 U CN 203411265U
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- tower crane
- movable arm
- arm tower
- running block
- bar running
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
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Abstract
The utility model provides a swing arm tower machine becomes width of cloth pull rod running block and swing arm tower machine. Swing arm tower machine becomes width of cloth pull rod movable pulley group includes: a pulley; the pulley is pivotally supported on the bracket; the adjustable landing leg with adjustable length, one end and the support fixed connection of adjustable landing leg. The utility model discloses both can prevent the collision, can prevent indiscriminate rope again, have simple structure, convenient operation, characteristics with low costs.
Description
Technical field
The utility model relates to hoisting crane field, more specifically, relates to a kind of movable arm tower crane amplitude draw-bar running block and movable arm tower crane.
Background technology
Movable arm tower crane amplitude draw-bar running block of the prior art mainly contains two kinds of forms, and wherein a kind of is running block with fixed supporting leg, and another kind is the running block without fixed supporting leg.
Please refer to Fig. 1, a kind of movable arm tower crane amplitude draw-bar running block 100 of the prior art comprises support 20 and is supported on pivotly the pulley 10 on support 20, and fixed supporting leg 90 is arranged on the below of support 20.Please refer to Fig. 2 and Fig. 3, when movable arm tower crane amplitude draw-bar running block 100 is fixed on the top of A cabinet frame 1, its fixed supporting leg 90 can step down on the crossbeam of A cabinet frame 1 and play a supportive role.When movable arm tower crane amplitude draw-bar running block 100 is placed on the erecting stage of crane arm 2, hoist rope can pass from the centre of two fixed supporting legs 90, avoids movable arm tower crane amplitude draw-bar running block 100 and raising line to bump.Yet in amplitude draw-bar installation process, when amplitude draw-bar is when the tower top of A cabinet frame 1 is transferred toward the erecting stage crane arm 2, movable arm tower crane amplitude draw-bar running block 100 easily bumps with the platform 4 of A cabinet frame 1 etc., initiation potential safety hazard.
Please refer to Fig. 4 and Fig. 5, another kind of movable arm tower crane amplitude draw-bar running block 100 of the prior art comprises support 20 and is supported on pivotly the pulley 10 on support 20, and it does not have supporting leg.Please refer to Fig. 6 and Fig. 7, when movable arm tower crane amplitude draw-bar running block 100 need to be put on crane arm 2 erecting stage time, owing to there is no supporting leg, do not prop movable arm tower crane amplitude draw-bar running block 100, movable arm tower crane amplitude draw-bar running block 100 easily and hoist rope bump, cause movable arm tower crane amplitude draw-bar running block 100 to reverse, thereby cause the problem of luffing rope disorder cable.Further, owing to there is no supporting leg, when this movable arm tower crane amplitude draw-bar running block 100 is placed on erecting stage, do not have the movable arm tower crane amplitude draw-bar running block in Fig. 1 stable yet.
Utility model content
The utility model aim to provide a kind of simple in structure, cost is low, not only can prevent collision, but also can prevent movable arm tower crane amplitude draw-bar running block and the movable arm tower crane of disorder cable.
For solving the problems of the technologies described above, according to first aspect of the present utility model, provide a kind of movable arm tower crane amplitude draw-bar running block, comprising: pulley; Support, pulley is supported on support pivotly; The adjustable support leg of adjustable in length, one end of adjustable support leg is fixedly connected with support.
Further, adjustable support leg comprises: the first supporting leg, and one end of the first supporting leg is fixedly connected with support; The second supporting leg, the other end of one end of the second supporting leg and the first supporting leg is pegged graft.
Further, on the first supporting leg, be provided with a plurality of primary importance adjustment holes, on the second supporting leg, be provided with the second place adjustment hole coordinating with primary importance adjustment hole; Movable arm tower crane amplitude draw-bar running block also comprises the set pin that inserts primary importance adjustment hole and second place adjustment hole.
Further, movable arm tower crane amplitude draw-bar running block also comprises the spring cotter of the one end that is arranged on set pin.
Further, the number of adjustable support leg is a plurality of, and movable arm tower crane amplitude draw-bar running block also comprises for connecting the pipe link of two adjustable support legs.
Further, the end of pipe link is connected with the first supporting leg of adjustable support leg.
Further, when movable arm tower crane amplitude draw-bar running block be fixed on movable arm tower crane A cabinet frame top and while being placed on the erecting stage of crane arm of movable arm tower crane, adjustable support leg has the first length; When the top of the A cabinet frame of movable arm tower crane amplitude draw-bar running block slave arm tower machine, transfer in the process of erecting stage of crane arm of movable arm tower crane, adjustable support leg has the second length; The first length is greater than the second length.
According to second aspect of the present utility model, a kind of movable arm tower crane is provided, comprise movable arm tower crane amplitude draw-bar running block and steel rope, steel rope is on movable arm tower crane amplitude draw-bar running block, and this movable arm tower crane amplitude draw-bar running block is above-mentioned movable arm tower crane amplitude draw-bar running block.
Because the utility model has adopted the adjustable support leg of adjustable in length, therefore, when movable arm tower crane amplitude draw-bar running block is fixed on the top of A cabinet frame and be placed on the erecting stage of crane arm, can make adjustable support leg 30 extend; When movable arm tower crane amplitude draw-bar running block, by luffing rope, raising line, from the top of A cabinet frame, transfer in the process the erecting stage of crane arm, can make the adjustable support leg of movable arm tower crane amplitude draw-bar running block shorten.Visible, the utility model not only can prevent collision, but also can prevent disorder cable, have feature simple in structure, easy to operate, cost is low.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation of the movable arm tower crane amplitude draw-bar running block with fixed supporting leg of the prior art;
Fig. 2 has schematically shown the scheme of installation of the movable arm tower crane amplitude draw-bar running block with fixed supporting leg of the prior art;
Fig. 3 has schematically shown the A portion enlarged drawing of Fig. 2;
Fig. 4 has schematically shown of the prior art not with the block diagram of the movable arm tower crane amplitude draw-bar running block of fixed supporting leg;
Fig. 5 has schematically shown of the prior art not with the front view of the movable arm tower crane amplitude draw-bar running block of fixed supporting leg;
Fig. 6 has schematically shown of the prior art not with the scheme of installation of the movable arm tower crane amplitude draw-bar running block of fixed supporting leg;
Fig. 7 has schematically shown the B portion enlarged drawing of Fig. 6;
Fig. 8 has schematically shown the structural representation of the movable arm tower crane amplitude draw-bar running block in the utility model; And
Fig. 9 has schematically shown the exploded view of the movable arm tower crane amplitude draw-bar running block in the utility model.
Reference numeral in figure: 1, A cabinet frame; 2, crane arm; 4, platform; 10, pulley; 20, support; 30, adjustable support leg; 31, the first supporting leg; 32, the second supporting leg; 33, primary importance adjustment hole; 34, second place adjustment hole; 40, set pin; 50, spring cotter; 60, pipe link; 70, gear rope bar; 80, arm-tie connecting portion; 90, fixed supporting leg; 100, movable arm tower crane amplitude draw-bar running block.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, provide a kind of movable arm tower crane amplitude draw-bar running block.As shown in Figure 8 and Figure 9, this movable arm tower crane amplitude draw-bar running block comprises: pulley 10; Support 20, pulley 10 is supported on support 20 pivotly; The adjustable support leg 30 of adjustable in length, one end of adjustable support leg 30 is fixedly connected with support 20.
Preferably, when movable arm tower crane amplitude draw-bar running block be fixed on movable arm tower crane A cabinet frame top and while being placed on the erecting stage of crane arm of movable arm tower crane, adjustable support leg 30 has the first length; When the top of the A cabinet frame of movable arm tower crane amplitude draw-bar running block slave arm tower machine, transfer in the process of erecting stage of crane arm of movable arm tower crane, adjustable support leg 30 has the second length; The first length is greater than the second length.
Because the utility model has adopted the adjustable support leg 30 of adjustable in length, therefore, when movable arm tower crane amplitude draw-bar running block is fixed on the top of A cabinet frame and be placed on the erecting stage of crane arm, can make adjustable support leg 30 extend; When movable arm tower crane amplitude draw-bar running block, by luffing rope, raising line, from the top of A cabinet frame, transfer in the process the erecting stage of crane arm, can make the adjustable support leg 30 of movable arm tower crane amplitude draw-bar running block shorten.
Movable arm tower crane amplitude draw-bar running block in the utility model with respect to of the prior art with fixed supporting leg with not with the movable arm tower crane amplitude draw-bar running block of supporting leg, in movable arm tower crane amplitude draw-bar running block decentralization process, the adjustable support leg 30 after shortening can be avoided touching with the platform of A cabinet frame.Further, when the movable arm tower crane amplitude draw-bar running block in the utility model is placed on erecting stage, can also be supported by pulsation-free.Therefore, the utility model not only can prevent collision, but also can prevent disorder cable.Visible, the utility model had both had advantages of two kinds of movable arm tower crane amplitude draw-bar running blocks of the prior art, had overcome again the shortcoming of these two kinds of movable arm tower crane amplitude draw-bar running blocks simultaneously, had feature simple in structure, easy to operate, cost is low.
Preferably, please refer to Fig. 9, adjustable support leg 30 comprises: one end of the first supporting leg 31, the first supporting legs 31 is fixedly connected with support 20; The other end of one end of the second supporting leg 32, the second supporting legs 32 and the first supporting leg 31 is pegged graft.By the mode of pegging graft, can regulate the degree of depth in second supporting leg 32 insertion the first supporting legs 31, thereby regulate the length of whole adjustable support leg 30.
Preferably, on the first supporting leg 31, be provided with on a plurality of primary importance adjustment hole 33, the second supporting legs 32 and be provided with the second place adjustment hole 34 coordinating with primary importance adjustment hole 33; Movable arm tower crane amplitude draw-bar running block also comprises the set pin 40 that inserts primary importance adjustment hole 33 and second place adjustment hole 34.Preferably, movable arm tower crane amplitude draw-bar running block also comprises the spring cotter 50 of the one end that is arranged on set pin 40, use spring cotter 50, can prevent the problem of set pin 40 from coming off in primary importance adjustment hole 33 and second place adjustment hole 34, improved the reliability of system.During adjusting, the movement of the second supporting leg 32 at any time, second place adjustment hole 34 on it aligns with the primary importance adjustment hole 33 on the first supporting leg 31, when the second supporting leg 32 is adjusted to suitable position, set pin 40 is inserted in the primary importance adjustment hole 33 and second place adjustment hole 34 after alignment, thereby by the first supporting leg 31 and the second supporting leg 32 lockings, its length is no longer changed.When needs regulate length again, set pin 40 can be extracted, like this, just can, by above-mentioned mode, continue to regulate length.
Preferably, the number of adjustable support leg 30 is a plurality of, and movable arm tower crane amplitude draw-bar running block also comprises for connecting the pipe link 60 of two adjustable support legs 30.For example, in the both sides of support 20, two adjustable support legs 30 are set respectively, and two adjustable support legs 30 of every side couple together by pipe link 60, to increase the rigidity of adjustable support leg 30.In one embodiment, preferably, the end of pipe link 60 is connected with the first supporting leg 31 of adjustable support leg 30.Obviously, the end of pipe link 60 is also the second supporting leg 32 connections also, like this, also can play the object that increases rigidity.
Preferably, movable arm tower crane amplitude draw-bar running block also comprises: gear rope bar 70, gear rope bar 70 is arranged on the first side of support 20.Utilize gear rope bar 70 can reach the object of rope skipping preventing.
Preferably, movable arm tower crane amplitude draw-bar running block also comprises: arm-tie connecting portion 80, arm-tie connecting portion 80 is arranged on the second side of support 20.During use, one end of arm-tie is connected with arm-tie connecting portion 80.
As second aspect of the present utility model, a kind of movable arm tower crane is provided, comprise movable arm tower crane amplitude draw-bar running block and steel rope, steel rope is on movable arm tower crane amplitude draw-bar running block, and this movable arm tower crane amplitude draw-bar running block is above-mentioned movable arm tower crane amplitude draw-bar running block.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a movable arm tower crane amplitude draw-bar running block, is characterized in that, comprising:
Pulley (10);
Support (20), described pulley (10) is supported on described support (20) pivotly;
The adjustable support leg of adjustable in length (30), one end of described adjustable support leg (30) is fixedly connected with described support (20).
2. movable arm tower crane amplitude draw-bar running block according to claim 1, is characterized in that, described adjustable support leg (30) comprising:
The first supporting leg (31), one end of described the first supporting leg (31) is fixedly connected with described support (20);
The second supporting leg (32), the other end of one end of described the second supporting leg (32) and described the first supporting leg (31) is pegged graft.
3. movable arm tower crane amplitude draw-bar running block according to claim 2, it is characterized in that, on described the first supporting leg (31), be provided with a plurality of primary importance adjustment holes (33), on described the second supporting leg (32), be provided with the second place adjustment hole (34) coordinating with described primary importance adjustment hole (33);
Described movable arm tower crane amplitude draw-bar running block also comprises the set pin (40) that inserts described primary importance adjustment hole (33) and described second place adjustment hole (34).
4. movable arm tower crane amplitude draw-bar running block according to claim 3, is characterized in that, described movable arm tower crane amplitude draw-bar running block also comprises the spring cotter (50) of the one end that is arranged on described set pin (40).
5. movable arm tower crane amplitude draw-bar running block according to claim 2, it is characterized in that, the number of described adjustable support leg (30) is a plurality of, and described movable arm tower crane amplitude draw-bar running block also comprises for connecting the pipe link (60) of two described adjustable support legs (30).
6. movable arm tower crane amplitude draw-bar running block according to claim 5, is characterized in that, the end of described pipe link (60) is connected with first supporting leg (31) of described adjustable support leg (30).
7. movable arm tower crane amplitude draw-bar running block according to claim 1, it is characterized in that, when described movable arm tower crane amplitude draw-bar running block be fixed on movable arm tower crane A cabinet frame top and while being placed on the erecting stage of crane arm of described movable arm tower crane, described adjustable support leg (30) has the first length;
When described movable arm tower crane amplitude draw-bar running block, transfer to the process of erecting stage of crane arm of described movable arm tower crane from the top of the A cabinet frame of described movable arm tower crane, described adjustable support leg (30) has the second length; Described the first length is greater than described the second length.
8. a movable arm tower crane, comprise movable arm tower crane amplitude draw-bar running block and steel rope, described steel rope is on described movable arm tower crane amplitude draw-bar running block, it is characterized in that, described movable arm tower crane amplitude draw-bar running block is the movable arm tower crane amplitude draw-bar running block described in any one in claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512467.5U CN203411265U (en) | 2013-08-21 | 2013-08-21 | Movable pulley block of variable-amplitude pull rod of movable arm tower crane and movable arm tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512467.5U CN203411265U (en) | 2013-08-21 | 2013-08-21 | Movable pulley block of variable-amplitude pull rod of movable arm tower crane and movable arm tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203411265U true CN203411265U (en) | 2014-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512467.5U Expired - Lifetime CN203411265U (en) | 2013-08-21 | 2013-08-21 | Movable pulley block of variable-amplitude pull rod of movable arm tower crane and movable arm tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203411265U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555730A (en) * | 2015-01-20 | 2015-04-29 | 江苏振东港口机械制造有限公司 | Stable amplitude variable pulley block |
| CN106284284A (en) * | 2016-10-31 | 2017-01-04 | 北京中车重工机械有限公司 | Dynamic compaction machinery and luffing jib thereof |
| CN110077971A (en) * | 2019-05-29 | 2019-08-02 | 徐工集团工程机械股份有限公司建设机械分公司 | Luffing pulley blocks bit shift compensation system and its crane |
-
2013
- 2013-08-21 CN CN201320512467.5U patent/CN203411265U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555730A (en) * | 2015-01-20 | 2015-04-29 | 江苏振东港口机械制造有限公司 | Stable amplitude variable pulley block |
| CN104555730B (en) * | 2015-01-20 | 2016-08-24 | 江苏振东港口机械制造有限公司 | A kind of steadily luffing assembly pulley |
| CN106284284A (en) * | 2016-10-31 | 2017-01-04 | 北京中车重工机械有限公司 | Dynamic compaction machinery and luffing jib thereof |
| CN110077971A (en) * | 2019-05-29 | 2019-08-02 | 徐工集团工程机械股份有限公司建设机械分公司 | Luffing pulley blocks bit shift compensation system and its crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
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| CX01 | Expiry of patent term |