CN210655895U - Large-pitch-angle boom steel wire rope winding device - Google Patents
Large-pitch-angle boom steel wire rope winding device Download PDFInfo
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- CN210655895U CN210655895U CN201920848776.7U CN201920848776U CN210655895U CN 210655895 U CN210655895 U CN 210655895U CN 201920848776 U CN201920848776 U CN 201920848776U CN 210655895 U CN210655895 U CN 210655895U
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- arm
- wire rope
- steel wire
- guide pulley
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Abstract
The utility model discloses a large pitch angle boom steel wire rope winding device, which is arranged on a crane boom and comprises a support guide pulley arranged on a rear support or/and a front support, a guide pulley arranged at the starting end of a top knuckle arm of an auxiliary boom, a guide pulley arranged at the tail end of the top knuckle arm of the auxiliary boom and a lifting pulley block arranged at the head of the auxiliary boom; after the steel wire rope wound on the winch sequentially passes through the guide pulleys and the lifting pulley block, the rope head is fixed on the arm support. The lifting arm does not need auxiliary equipment, the occupied space of assembly is small, and the applicable operation range is wider; the lifting hook is not required to be moved by auxiliary equipment, the steel wire rope is not abraded, the arm support assembling efficiency is greatly improved, and the pitching angle of the arm support can reach 270 degrees to the maximum.
Description
Technical Field
The utility model relates to a big pitch angle cantilever crane wind belongs to hoist technical field.
Background
With the large-scale development of hoisting components and the diversified development of hoisting requirements, the tonnage of the crawler crane is gradually increased, and the vehicle body is gradually developed to be large-scale, so that the assembly space of the crawler crane is required to be larger, particularly, the assembly space required by the arm support is larger, but the construction site does not always have enough space for assembly, the machine type of a novel arm support needs to be developed, the assembly space of the arm support is reduced, and the winding of the wire rope of the arm head pulley block and the arm lifting operation are completed smoothly under the limited space condition.
The traditional steel wire rope winding mode cannot realize negative angle pitching of the arm support, only can change between-90 degrees and 90 degrees, if the negative angle pitching reaches the range of-180 degrees to 90 degrees, the structure can interfere, and auxiliary equipment is needed to move the lifting hook when the arm is lifted. And the performance of the arm support is higher and higher, the arm support is longer and longer, and the occupied space required by assembly is larger.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a winding device of a large pitch angle boom steel wire rope, which can realize the change of the large pitch angle of the boom, and can meet the requirement that the steel wire rope after winding is smoothly converted into a hoisting state from a boom-up state, and the maximum pitch angle can reach 270 degrees; meanwhile, the space occupied by the assembled arm support is reduced, and the space required by assembly is smaller.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a large-pitch-angle boom steel wire rope winding device is characterized by being arranged on a crane boom and comprising a support guide pulley, a guide pulley and a lifting pulley block, wherein the support guide pulley is arranged on a rear support or/and a front support, the guide pulley is arranged at the starting end of a top knuckle arm of an auxiliary arm, the guide pulley is arranged at the tail end of the top knuckle arm of the auxiliary arm, and the lifting pulley block is arranged at the head of the arm of the auxiliary arm;
after the steel wire rope wound on the winch sequentially passes through the guide pulleys and the lifting pulley block, the rope head is fixed on the arm support.
Furthermore, the number of the winches is one or more, and each winch correspondingly winds a steel wire rope; each steel wire rope is independently wound on each guide pulley and each lifting pulley block.
Furthermore, the crane arm support comprises a main arm, one end of the main arm is hinged to the crane, and the other end of the main arm is hinged to the auxiliary arm.
Furthermore, before the arm support lifts the arm, the auxiliary arm is folded below the main arm through the hinged point of the auxiliary arm and the main arm.
Furthermore, before the boom is lifted, a steel wire rope extending out of the winch is led out from the upper part of the support guide pulley, the lower part of the guide pulley at the starting end of the top knuckle arm of the auxiliary boom and the lower part of the guide pulley at the tail end of the top knuckle arm of the auxiliary boom, enters a rope from the upper part of a first fixed pulley in the boom head lifting pulley block, passes through N pairs of movable pulleys and fixed pulleys, and the rope head is finally fixed on the boom.
Further, when the arm support is in a working state, the steel wire rope changes along with rotation and rising of the positions of the support guide pulley, the auxiliary arm top knuckle arm starting end guide pulley, the auxiliary arm top knuckle arm tail end guide pulley and the arm head lifting pulley block, the steel wire rope is led out from the upper part of the support guide pulley, the upper part of the auxiliary arm top knuckle arm starting end guide pulley and the upper part of the auxiliary arm top knuckle arm tail end guide pulley and is separated from the first fixed pulley in the arm head lifting pulley block, the steel wire rope is led in from the lower part of the first movable pulley in the N pairs of movable pulleys and fixed pulleys and the first movable pulley in the fixed pulleys, the steel wire rope sequentially passes through the N pairs of movable pulleys and fixed pulleys, and the rope head is finally fixed on the arm.
Furthermore, a rope supporting wheel is further arranged on the arm support, and the steel wire rope is fixed on the arm support through the rope supporting wheel after being taken out from the lifting pulley block.
A large-pitch-angle boom steel wire rope winding method is arranged on a crane boom and comprises a support guide pulley arranged on a rear support or a front support, a guide pulley arranged at the starting end of a top knuckle arm of an auxiliary arm, a guide pulley arranged at the tail end of the top knuckle arm of the auxiliary arm and a lifting pulley block arranged at the head of the arm of the auxiliary arm;
after the steel wire rope wound on the winch sequentially passes through the guide pulleys and the lifting pulley block, the rope head is fixed on the arm support.
Furthermore, before the boom is lifted, a steel wire rope extending out of the winch is led out from the upper part of the support guide pulley, the lower part of the guide pulley at the starting end of the top knuckle arm of the auxiliary boom and the lower part of the guide pulley at the tail end of the top knuckle arm of the auxiliary boom, enters a rope from the upper part of a first fixed pulley in the boom head lifting pulley block, passes through N pairs of movable pulleys and fixed pulleys, and the rope head is finally fixed on the boom.
Further, when the arm support is in a working state, the steel wire rope changes along with rotation and rising of the positions of the support guide pulley, the auxiliary arm top knuckle arm starting end guide pulley, the auxiliary arm top knuckle arm tail end guide pulley and the arm head lifting pulley block, the steel wire rope is led out from the upper part of the support guide pulley, the upper part of the auxiliary arm top knuckle arm starting end guide pulley and the upper part of the auxiliary arm top knuckle arm tail end guide pulley and is separated from the first fixed pulley in the arm head lifting pulley block, the steel wire rope is led in from the lower part of the first movable pulley in the N pairs of movable pulleys and fixed pulleys and the first movable pulley in the fixed pulleys, the steel wire rope sequentially passes through the N pairs of movable pulleys and fixed pulleys, and the rope head is finally fixed on the arm.
The utility model discloses the beneficial effect who reaches:
1. the winding mode and the winding device of the arm support with the large pitching angle enable the arm support to be folded, auxiliary equipment is not needed when the arm is lifted, the occupied space for assembling is small, and the applicable operation range is wider;
2. the winding mode and the winding device of the large-pitch-angle arm support do not need auxiliary equipment to move the lifting hook, the steel wire rope is not abraded, and the assembling efficiency of the arm support is greatly improved;
3. the winding mode and the winding device of the arm support with the large pitching angle enable the pitching angle of the arm support to be 270 degrees at most.
4. The winding mode and the winding device of the arm support with the large pitching angle are novel in type and unique.
Drawings
Fig. 1 is a schematic diagram of a boom raising state in the present embodiment;
FIG. 2 shows the winding of the wire rope before the boom is lifted in FIG. 1;
fig. 3 is a schematic view of the working state of the boom in this embodiment;
fig. 4 shows the winding manner of the wire rope in the boom working state in fig. 2.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The utility model discloses broken through the winding traditional rope handling mode every single move angle of cantilever crane wire rope and limited within 180, provided the overall arrangement mode of a brand-new big every single move winding and structure.
As shown in fig. 1 and 2, in the state before the boom is lifted in a winding manner of the large-pitch boom, one end of the main boom 100 is hinged to the crane, the other end is hinged to the auxiliary boom 200, and the auxiliary boom 200 is folded below the main boom 100 through the hinge point with the main boom 100. The arm support can be folded, on-site assembly is not needed, and occupied space is reduced.
In this embodiment, 2 winches are used in cooperation with 2 cranes for hoisting the wire rope 8. One arm support lifting steel wire rope 8 is led out from the first winch 1, sequentially passes through the rear support guide pulley 2, the front support guide pulley 3, the auxiliary arm top knuckle arm initial end guide pulley 4, the auxiliary arm top knuckle arm tail end guide pulley 5 and the auxiliary arm head lifting pulley block 6, and is finally wound on the lifting hook 7. A hoisting steel wire rope 8 is led out from the lower part of a guide pulley 5 at the tail end of a top knuckle arm of the auxiliary arm, enters a rope from the upper part of a fixed pulley A in a hoisting pulley block 6 at the head of the arm, enters the rope from the lower part of a movable pulley B, sequentially passes through a fixed pulley C, a movable pulley D and a fixed pulley E, is wound with a lifting hook, and then passes through a rope supporting wheel F, and the head of the rope is fixed on the arm support. And the other arm support lifting steel wire rope 8a comes out of the second winch 1a in the same winding mode.
Through the utility model discloses in the overall arrangement mode of big every single move wire rope winding and device can effectively reduce the restriction that accounts for the space to the cantilever crane equipment, and then can effectively reduce the equipment required time.
As shown in fig. 3, the boom is in a large pitch boom winding mode to be in a working state, the state is a normal hoisting state which is realized by rotating the boom counterclockwise from the state shown in fig. 1 and moving the hook 7 away from the ground along with the boom, and no auxiliary equipment is required to move the hook in the process, as shown in fig. 3. In the arm lifting process, as the positions of the auxiliary arm top knuckle arm starting end guide pulley 4, the auxiliary arm top knuckle arm tail end guide pulley 5 and the arm head lifting pulley block 6 are continuously rotated and lifted, when the positions of the auxiliary arm top knuckle arm starting end guide pulley 4 and the auxiliary arm top knuckle arm tail end guide pulley 5 are rotated from one side of the front support guide pulley 3 close to the first winch 1 to the other side of the front support guide pulley 3 far away from the first winch 1, the positions of two arm support lifting steel wire ropes 8 respectively led out from the lower part of the auxiliary arm top knuckle arm tail end guide pulley 5 are changed into the positions led out from the upper part of the auxiliary arm top knuckle arm tail end guide pulley 5, meanwhile, the steel wire rope on the pulley A in the arm head lifting pulley block 6 slowly rotates along with the arm support until finally completely separated from the fixed pulley A, so that the steel wire rope led out from the upper part of the auxiliary arm top knuckle arm tail end guide pulley 5 is led in from the lower part of the driven pulley, then the rope head passes through a fixed pulley C, a movable pulley D, a fixed pulley E and a rope supporting wheel F in sequence, and is fixed on the arm support as shown in figure 4. At this time, the sub-arm 200 extends around the main arm 100 to reach a hanging state. The other boom hoisting steel wire rope 8a comes out of the second winch 1a, and the same principle is carried out in the hoisting state.
Fig. 2 and 3 are only examples. The hoisting number is 2, so that 2 boom hoisting steel cables are correspondingly adopted, and in other embodiments, the hoisting number and the corresponding boom hoisting steel cables can be other numbers; the crane includes, but is not limited to, the crane shown in the figures, and all cranes adopting the winding mode are included in the present invention.
In this embodiment, the group of arm head lifting pulley blocks 6 includes 3 fixed pulleys and 2 movable pulleys. In other embodiments, the arm head lifting pulley block 6 may also comprise other numbers of fixed pulleys and movable pulleys in combination.
The utility model discloses design wire rope guider on the crane boom, accomplish arm head assembly pulley wire rope winding back under limited space, realize the arm that rises of the big every single move angle of cantilever crane, the every single move angle scope of cantilever crane is-180 to 90, and the biggest every single move angle can reach 270 to realize the big every single move angle change of cantilever crane, the wire rope after reaching the winding is followed the arm state and is converted into the requirement of hoist and mount state smoothly. The folding of the main and auxiliary arms can be realized, the occupied space of the assembled arm support is greatly reduced, and the requirement of small assembling space is met.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (6)
1. A large-pitch-angle boom steel wire rope winding device is characterized by being arranged on a crane boom and comprising a support guide pulley, a guide pulley and a lifting pulley block, wherein the support guide pulley is arranged on a rear support or/and a front support, the guide pulley is arranged at the starting end of a top knuckle arm of an auxiliary arm, the guide pulley is arranged at the tail end of the top knuckle arm of the auxiliary arm, and the lifting pulley block is arranged at the head of the arm of the auxiliary arm;
after the steel wire rope wound on the winch sequentially passes through the guide pulleys and the lifting pulley block, the rope head is fixed on the arm support.
2. The large-pitch-angle boom steel wire rope winding device as claimed in claim 1, wherein the number of the winches is one or more, and each winch correspondingly winds one steel wire rope; each steel wire rope is independently wound on each guide pulley and each lifting pulley block.
3. The large pitch angle boom steel wire rope winding device as claimed in claim 1, wherein the crane boom comprises a main boom hinged at one end to the crane and the other end of the main boom is hinged to the sub boom.
4. The large-pitch-angle boom steel wire rope winding device as claimed in claim 3, wherein the boom is folded under the main arm through a hinge point of the auxiliary arm and the main arm before the boom is lifted.
5. The large-pitch angle boom steel wire rope winding device as claimed in claim 1, wherein in front of the boom lifting arm, the steel wire rope extending from the winch is led out from above the support guide pulley, below the guide pulley at the starting end of the sub-boom top knuckle arm, and below the guide pulley at the tail end of the sub-boom top knuckle arm, and is led in from above the first fixed pulley in the boom head lifting pulley block, and is finally fixed on the boom through the N pairs of movable pulleys and fixed pulleys.
6. The large-pitch-angle boom steel wire rope winding device as claimed in claim 1, wherein the boom is further provided with a rope supporting wheel, and the steel wire rope is fixed on the boom through the rope supporting wheel after being taken out from the hoisting pulley block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848776.7U CN210655895U (en) | 2019-06-06 | 2019-06-06 | Large-pitch-angle boom steel wire rope winding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848776.7U CN210655895U (en) | 2019-06-06 | 2019-06-06 | Large-pitch-angle boom steel wire rope winding device |
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| Publication Number | Publication Date |
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| CN210655895U true CN210655895U (en) | 2020-06-02 |
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| CN201920848776.7U Active CN210655895U (en) | 2019-06-06 | 2019-06-06 | Large-pitch-angle boom steel wire rope winding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240071A (en) * | 2019-06-06 | 2019-09-17 | 徐工集团工程机械股份有限公司建设机械分公司 | A kind of large pitching angle degree derricking rope wind and winding method |
-
2019
- 2019-06-06 CN CN201920848776.7U patent/CN210655895U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240071A (en) * | 2019-06-06 | 2019-09-17 | 徐工集团工程机械股份有限公司建设机械分公司 | A kind of large pitching angle degree derricking rope wind and winding method |
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