CN220811592U - Auxiliary device for quick advance and withdrawal of lifting hook movable pulley - Google Patents
Auxiliary device for quick advance and withdrawal of lifting hook movable pulley Download PDFInfo
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- CN220811592U CN220811592U CN202322796457.5U CN202322796457U CN220811592U CN 220811592 U CN220811592 U CN 220811592U CN 202322796457 U CN202322796457 U CN 202322796457U CN 220811592 U CN220811592 U CN 220811592U
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- lifting hook
- movable pulley
- bottom plate
- spring
- upper top
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- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
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- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of tower crane equipment, and discloses a quick-speed advancing and retreating auxiliary device for a lifting hook movable pulley. When the movable pulleys are connected, the weight plates at two sides are inserted into the side plates of the lower double pulleys, bolts at two sides of the upper top plate are loosened, the upper top plate is propped against the lower parts of the two side plates of the movable pulleys by the inner springs of the guide posts, the taper of the front end of the pin shaft is utilized to guide the pin shaft hole, and the hammer is used for driving the pin shaft to realize pin shaft connection and locking. When the movable pulley of the lifting hook advances and retreats, the locking pin shaft is easy to advance and retreat, meanwhile, labor is saved, the working efficiency is improved, and the steel wire rope is prevented from being distorted and distorted.
Description
Technical Field
The utility model belongs to the technical field of tower crane equipment, and particularly relates to a quick advancing and retreating auxiliary device for a lifting hook movable pulley.
Background
At present, in the process of pin feeding and pin withdrawing, the pin feeding and pin withdrawing of a movable pulley in a lifting hook of a tower crane, which is applied to the current market, is troublesome, time-consuming and labor-consuming, and particularly when the lifting hook of the tower crane performs two-four-rope multiplying power conversion operation, a plurality of operators are required to disassemble and assemble the pin feeding and withdrawing of the lifting hook, and the method is to use a large hammer to beat a connecting pin of the movable pulley; when the movable pulley of the lifting hook is affected by the weight of the movable pulley, the pin withdrawing work is more difficult when the movable pulley of the lifting hook is subjected to shearing force downwards to the connecting pin shaft, even the whole lifting hook is sometimes required to be placed down, and a large hammer is struck, so that the side plate of the lifting hook is easily deformed, the pin shaft is not easy to withdraw, and meanwhile, the problem that a lifting wire rope is twisted, distorted or a lifting hoist is disordered is easily caused due to the fact that the lifting hook is placed down, and the lifting hook movable pulley fast-advancing pin withdrawing auxiliary device can realize the fast pin advancing and withdrawing work of the lifting hook lifting pulley.
Through the above analysis, the problems and defects existing in the prior art are as follows: the prior art is easy to cause deformation of the side plate of the lifting hook, so that the pin shaft is not easy to withdraw, and meanwhile, the lifting steel wire rope is easy to twist and distort and cause rope disorder of the lifting winch due to the inverted placement of the lifting hook.
Disclosure of utility model
Aiming at the problems existing in the prior art, the utility model provides a quick advancing and retreating auxiliary device for a lifting hook movable pulley.
The utility model is realized in such a way that a lifting hook movable pulley fast-forward and pin-return auxiliary device is provided with:
A bottom plate;
The bottom plate is welded at the lower part of the lifting hook, a spring guide hole and a spring outer diameter fixing ring are arranged in the middle of the bottom plate, the bottom plate is connected with an upper top plate through two bolts and nuts, and a guide column of the upper top plate enters and exits the spring bottom plate hole to realize spring compression centering positioning.
Further, a movable pulley on the lifting hook is fixed with pin shaft holes on two sides of the counterweight plate and the double-pulley side plate through a connecting pin shaft, the movable pulley of the lifting hook is provided with the connecting pin shaft, and the counterweight plate of the movable pulley and the side plate of the movable pulley are arranged on the steel wire rope.
Further, an auxiliary device bottom plate on the double pulley is fixed on a lower double pulley side plate and is locked through bolts at two sides.
Further, the guide post in the upper top plate compresses, centers and fixes the spring.
By combining the technical scheme and the technical problems to be solved, the technical scheme to be protected by the utility model has the following advantages and positive effects:
The utility model comprises a spring, an upper top plate, a bottom plate, a spring force adjusting bolt, a nut, a movable pulley counterweight plate and the like, wherein the bottom plate is welded on the upper parts of two side plates of a double pulley at the lower part of a lifting hook, a spring guide hole and a spring outer diameter fixing ring are arranged in the middle of the bottom plate, the connection with the upper top plate is realized through the two bolts and the nuts, and a guide post of the upper top plate enters and exits the spring bottom plate hole to realize spring compression centering positioning.
When the movable pulley of the lifting hook advances and retreats to the pin, the connecting pin shaft is easy to advance and retreat, meanwhile, the labor is saved, the working efficiency is improved, the steel wire rope is prevented from being distorted and distorted, and the rope disorder phenomenon of the lifting winch is effectively avoided.
Second, the expected benefits and commercial value after the technical scheme of the utility model is converted are: according to the technical scheme, the time of carrying out multiplying power conversion work of two and four ropes of the pulley by workers can be greatly reduced through achievement conversion, labor is saved, the working efficiency is improved, the phenomenon of rope disorder of the steel wire rope is avoided, the service life of the steel wire rope is prolonged, potential economic benefits are brought to the using units of the tower crane, and the commercial prospect is good.
The technical scheme of the utility model fills the technical blank in the domestic and foreign industries: according to the technical scheme, the labor-saving auxiliary device for advancing and retreating the pin shaft does not exist at present, and the technology has theoretical basis and practical application value.
The technical scheme of the utility model solves the technical problems that people are always desirous of solving but are not successful all the time: the novel auxiliary advancing and retreating device for the hanging hook of the tower crane helps a tower crane using unit and construction enterprises to solve the technical problems that people are always desirous of solving but are not successful all the time.
Thirdly, the lifting hook movable pulley quick-advancing and pin-retreating auxiliary device provided by the utility model brings the following remarkable technical progress:
1. Efficiency is improved: by means of the auxiliary device and the spring mechanism, the lifting speed of the pulley is increased, and therefore the efficiency of the whole operation is improved.
2. Stability is enhanced: the weight of the pulley can be balanced through the design of the movable pulley counterweight plate, so that the stability of the pulley in moving is ensured, and the risk in the operation process is reduced.
3. Simplifying the operation: the design of spring compression and neutral position positioning is adopted, so that the operation process is simpler and more convenient, and complicated manual adjustment is not needed.
4. The structure is compact: the parts of the whole device are tightly matched to form a whole body with compact structure, and the device is easy to install and maintain.
Drawings
FIG. 1 is a schematic diagram of the structure of a quick advancing and retreating auxiliary device for a movable pulley of a lifting hook according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an auxiliary device according to an embodiment of the present utility model;
FIG. 3 is a three-dimensional view of an upper top plate provided by an embodiment of the present utility model;
FIG. 4 is a bottom plate diagram of an auxiliary device according to an embodiment of the present utility model;
FIG. 5 is a schematic view showing the working state of the device when the pin is advanced and retreated according to the embodiment of the present utility model;
Fig. 6 is a working state diagram of a front counterweight side plate after being hidden when a pin is moved in and out according to the embodiment of the utility model;
FIG. 7 is a cross-sectional view of an accessory device in a locked condition when the accessory device is not advanced or retracted in accordance with an embodiment of the present utility model;
FIG. 8 is a front elevational view, in full section, of a non-advancing and retreating pin provided in accordance with an embodiment of the present utility model;
FIG. 9 is a schematic diagram of a supporting structure of a lifting pulley of a lifting hook according to an embodiment of the present utility model;
In the figure: 1. a movable pulley; 2. an auxiliary device; 3. a movable pulley side plate; 4. a spring; 5. an upper top plate; 6. a connecting pin shaft; 7. a bolt; 8. a bottom plate; 9. a nut; 10. a movable pulley counterweight plate.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, 2 and 6, the hook movable pulley quick-advancing and pin-retreating auxiliary device according to the embodiment of the utility model includes: the movable pulley comprises a movable pulley 1, an auxiliary device 2, a movable pulley side plate 3, a spring 4, an upper top plate 5, a connecting pin shaft 6, a bolt 7, a bottom plate 8, a nut 9 and a movable pulley weight plate 10;
The bottom plate 8 is welded at the lower part of the lifting hook (upper part of the double-pulley side plate), a spring guide hole and a spring outer diameter fixing ring are arranged in the middle of the bottom plate 8, the bottom plate is connected with the upper top plate 5 through two bolts 7 and nuts 9, and the guide column of the upper top plate 5 enters and exits the spring 4 to realize compression centering positioning of the spring 4 in the bottom plate hole.
When the movable pulley 1 on the lifting hook needs to be separated, bolts 7 on two sides of the upper top plate 5 are unscrewed, the force of a spring 4 in the upper top plate 5 is equal to the mass of the movable pulley 1 of the lifting hook, two movable pulley side plates 3 (namely the mass of the whole movable pulley) of the movable pulley 1 are lifted under the action of a lifting spring, at the moment, a hammer is used for striking a connecting pin shaft 6 of the lifting hook pulley, the withdrawing of the connecting pin shaft 6 of the movable pulley of the lifting hook is easily realized, a counterweight plate 10 of the lifting hook movable pulley after the withdrawing and the movable pulley side plates 3 rise together with a steel wire rope, two side bolts 7 on the bottom plate of an auxiliary device 2 (the bottom plate of the auxiliary device 2 is fixed on the lower double pulley side plate) on the left double pulley after the withdrawing is completed are locked (slightly screwed), and a guide column in the upper top plate 5 compresses and centers the spring 4. On the contrary, when the movable pulley is connected, the weight plates at two sides are inserted into the side plates of the lower double pulley, then the bolts 7 at two sides of the upper top plate 5 are unscrewed, the upper top plate 5 is propped against the lower part of the two side plates of the movable pulley by the guide post inner spring 4, the taper at the front end of the connecting pin shaft 6 is used for guiding the pin shaft hole, and the hammer is used for driving the pin shaft to realize pin shaft connecting and locking.
The supporting structure of the lifting hook lifting pulley of the utility model works according to the principle: as can be seen from fig. 9, Δf is far smaller than the mass P of the movable pulley of the hook, so that the shearing force applied to the shaft pin is small, and the pin feeding and withdrawing operations are easy to implement.
The movable pulley of the lifting hook is 117kg, the spring tension is 117kg, and the manufacturing error of delta F is small, so that the shearing force delta F actually applied to the pin shaft is small compared with 117kg, and the pin shaft is easy to strike by a hammer.
Compared with the prior art, the utility model, have and improve work efficiency and save cost expenditure, play positive effect for tower machine user or lease unit in the aspect of saving cost and extension wire rope life.
The working principle of the lifting hook movable pulley quick-advancing and pin-retreating auxiliary device is as follows:
The movable pulley 1 is an important working part of the lifting hook and is responsible for moving in the vertical direction to realize lifting of the lifting hook. The auxiliary device 2 is responsible for controlling the mechanism of the movable pulley advancing and retreating pin. The movable pulley side plate 3, the spring 4, the upper top plate 5, the connecting pin shaft 6, the bolt 7, the bottom plate 8, the nut 9 and the movable pulley counterweight plate 10 are all components of the device, so that the rapid advance and retreat of the pulley are realized together.
The bottom plate 8 is welded on the lower part of the lifting hook, namely the upper part of the side plate of the double pulley. A spring guide hole and a spring outer diameter fixing ring are arranged in the middle of the bottom plate 8. The upper top plate 5 is connected with a nut 9 by two bolts 7. The guide post of the upper top plate 5 goes in and out of the spring 4 to the bottom plate hole, so that the compression and middle positioning of the spring 4 are realized. When lifting the lifting hook is needed, the auxiliary device 2 controls the movement of the movable pulley 1. The force generated by the spring 4 during compression and release can push the counterweight plates of the movable pulley 1 to be quickly centered with the pin holes of the side plate connecting pins of the double pulleys, so that the connecting pins can quickly advance and retreat. The movable pulley weight plate 10 is responsible for balancing the weight of the pulley, ensuring the stability of the pulley when moving.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model will be apparent to those skilled in the art within the scope of the present utility model.
Claims (4)
1. The utility model provides a lifting hook activity pulley advances fast and moves back round pin auxiliary device which characterized in that is provided with:
A bottom plate;
The bottom plate is welded at the lower part of the lifting hook, a spring guide hole and a spring outer diameter fixing ring are arranged in the middle of the bottom plate, the bottom plate is connected with an upper top plate through two bolts and nuts, and a guide column of the upper top plate enters and exits the spring bottom plate hole to realize spring compression centering positioning.
2. The quick advance and retreat pin assisting device for a movable pulley of a lifting hook according to claim 1, wherein the movable pulley on the lifting hook is fixed by bolts on two sides of an upper top plate, the pulley of the lifting hook is provided with a fixed pin shaft, and a movable pulley counterweight plate and a movable pulley side plate are arranged on a steel wire rope.
3. The quick advance and return pin assist device for a movable sheave of a lifting hook as claimed in claim 1, wherein the assist device bottom plate of the double sheave is fixed to the side plate of the lower double sheave and is locked by means of bolts on both sides.
4. A hook movable sheave fast forward and reverse pin assist device as claimed in claim 3 wherein the guide post in the upper top plate centers the compression of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322796457.5U CN220811592U (en) | 2023-10-18 | 2023-10-18 | Auxiliary device for quick advance and withdrawal of lifting hook movable pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322796457.5U CN220811592U (en) | 2023-10-18 | 2023-10-18 | Auxiliary device for quick advance and withdrawal of lifting hook movable pulley |
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| Publication Number | Publication Date |
|---|---|
| CN220811592U true CN220811592U (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322796457.5U Active CN220811592U (en) | 2023-10-18 | 2023-10-18 | Auxiliary device for quick advance and withdrawal of lifting hook movable pulley |
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| CN (1) | CN220811592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118529612A (en) * | 2024-07-26 | 2024-08-23 | 徐州筑之邦工程机械有限公司 | Auxiliary hoisting device for mining machinery |
-
2023
- 2023-10-18 CN CN202322796457.5U patent/CN220811592U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118529612A (en) * | 2024-07-26 | 2024-08-23 | 徐州筑之邦工程机械有限公司 | Auxiliary hoisting device for mining machinery |
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