CN220485181U - Winch driving counterweight sliding mechanism - Google Patents
Winch driving counterweight sliding mechanism Download PDFInfo
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- CN220485181U CN220485181U CN202322000394.8U CN202322000394U CN220485181U CN 220485181 U CN220485181 U CN 220485181U CN 202322000394 U CN202322000394 U CN 202322000394U CN 220485181 U CN220485181 U CN 220485181U
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- counterweight
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- winch
- rack
- linkage device
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000004804 winding Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
A winch driving counterweight sliding mechanism comprises a winch gear arranged on a turntable, wherein the winch gear is connected with a counterweight through a linkage device, the linkage device is connected with the counterweight, and the linkage device cooperates with the winch gear to move. The winch driving counterweight sliding mechanism is driven by the driving force of the drum for decelerating, realizes the front and back sliding of the counterweight through the transmission of the winch gear, the clutch gear, the rack and other elements, improves the remote hoisting capacity of the mobile crane, saves the cost of a driving device compared with other counterweight sliding mechanisms, and has high reliability.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to a winch driving counterweight sliding mechanism.
Background
One of the key influencing factors for improving the stability of the mobile crane is the distance between the balance weight center and the rotation center, which is in a direct proportion relation with the stability, in order to improve the stability of the product, the product design hopes to increase the distance between the balance weight center and the rotation center as much as possible, and the distance between the balance weight center and the rotation center is limited to a certain extent due to the design limitations of the working space and the whole machine length, so as to solve the contradiction between the design limitations of the stability and the working space by increasing the distance between the balance weight center and the rotation center, and the balance weight sliding mechanism and the realization mode thereof become an important research direction of the technical development of the crane industry.
The displacement driving mode of the existing balancing weight displacement mechanism mainly comprises the steps of pushing the balancing weight hanging frame to move backwards or turn over by adding a telescopic oil cylinder or a turning oil cylinder, so as to realize the position backward movement of the balancing weight; alternatively, the forward and backward displacement of the counterweight hanging position is realized by manual displacement, and the forward and backward change of the counterweight hanging position is realized without the function of carrying displacement.
The prior art realizes the on-load deflection generally by additionally adding a telescopic oil cylinder or a swinging oil cylinder to drive the deflection, or not adding the driving, and manually changing the hanging position of the balancing weight. The disadvantage is that the additional driving power source is added, the additional power source and the driving device are needed, the whole weight is large, and the design cost is high. The driving device is not added, the balance weight deflection can not realize the function of continuous deflection with load, the adaptability of the balance weight deflection function in the operation in a narrow space is affected, and in addition, the deflection hanging efficiency is affected.
Disclosure of Invention
The technical problem to be solved by the utility model is to overcome the defects in the prior art, and provide a winch driving counterweight sliding mechanism with simple structure and good effect.
The utility model is realized by the following technical scheme: the winch driving counterweight sliding mechanism comprises a winch gear arranged on a turntable, wherein the winch gear is connected with a counterweight through a linkage device, the linkage device is connected with the counterweight, and the linkage device cooperates with the winch gear to move.
It is further: the linkage device is a gear rack mechanism.
The gear rack mechanism comprises a clutch gear and a rack which are matched for use, the rack is connected with the counterweight, and the clutch gear is meshed with the hoisting gear.
The balance weight is connected with the rack through a fastening bolt.
The linkage device can also be a crankshaft connecting rod sliding block mechanism or a chain sprocket mechanism or a worm gear mechanism.
The utility model has the following advantages: the winch driving counterweight sliding mechanism is driven by the driving force of the drum speed reduction, realizes the front and back sliding of the counterweight through the transmission of the winch gear, the clutch gear, the gear and other elements, improves the remote hoisting capacity of the mobile crane, saves the cost of a driving device compared with other counterweight sliding mechanisms, and has high reliability.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
In the figure: 1. the device comprises a hoisting gear, 2 clutch gears, 3, a rack, 4, a counterweight, 5 and a turntable.
Description of the embodiments
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are for illustration and explanation of the present utility model, and are not intended to limit the present utility model.
The winch driving counterweight sliding mechanism shown in fig. 1 comprises a winch gear 1 arranged on a turntable 5, wherein the winch gear 1 is connected with a counterweight 4 through a linkage device, the linkage device is connected with the counterweight 4, and the linkage device moves in cooperation with the winch gear 1. According to the winch driving counterweight sliding mechanism, a linkage device is arranged between the winch gear and the counterweight, and the front and back sliding of the counterweight is realized through the driving force driving of the existing winch speed reduction and the transmission of elements such as the linkage device; the linkage device is simple and reliable, the transmission is stable, meanwhile, the driving force is the winch speed reducer originally existing in the crane, no additional driving is added, the design cost variation is small, the counterweight pulley quantity can be quite considerable, and the stable performance lifting quantity is obvious.
The winch drives the counterweight sliding mechanism shown in fig. 1, and the linkage is a gear rack mechanism. The gear-rack mechanism comprises a clutch gear 2 and a rack 3 which are matched, the rack 3 is connected with a counterweight 4, and the clutch gear 2 is meshed with the winding gear 1. The balancing weight 4 and the rack 3 are connected together through fastening bolts. The linkage device is a gear-rack mechanism, the gear-rack mechanism specifically comprises a clutch gear and a rack, the clutch gear and the rack are in bilateral transmission, the clutch gear is meshed with a hoisting gear, a counterweight is connected with the rack through a fastening bolt, the hoisting gear rotates to drive the clutch gear to rotate, and the rack moves left and right under the drive of the clutch gear, so that the telescopic control of the counterweight is realized.
When the crane operation needs to slide the balancing weight, and the stability performance is improved, the clutch gear 2 is pushed to the meshing position with the winding gear 1 along the axial direction, the winding gear 1 is rolled clockwise through the lifting operation of the crane, the clutch gear 2 is driven to rotate anticlockwise, the rack 3 is pushed to move outwards, the balancing weight is driven to slide outwards relative to the turntable, and after the balancing weight is slid to the required position, the clutch gear 2 is pushed to the position separated from the winding gear 1 along the axial direction, so that the crane operation can be carried out.
When the counterweight is not required to slide, the clutch gear 2 is pushed to the meshing position with the winding gear 1 along the axial direction, the winding gear 1 is rolled anticlockwise through lifting operation of the crane, the clutch gear 2 is driven to rotate clockwise, the rack 3 is pushed to move inwards, the counterweight is driven to slide inwards relative to the turntable, and after the counterweight is slid to the initial position, the clutch gear 2 is pushed to the position separated from the winding gear 1 along the axial direction.
The winch drives the counterweight sliding mechanism shown in fig. 1, and the linkage is a gear rack mechanism. In the winch driving counterweight sliding mechanism, the linkage device can be realized by a crankshaft connecting rod sliding block mechanism or a chain sprocket mechanism or a worm gear, worm and screw rod transmission.
Finally, it should be noted that: the foregoing description is only a preferred example of the present utility model and is not intended to limit the present utility model, but although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. A hoist drive balance weight slide mechanism which characterized in that: the device comprises a hoisting gear (1) arranged on a turntable (5), wherein the hoisting gear (1) is connected with a counterweight (4) through a linkage device, the linkage device is connected with the counterweight (4), and the linkage device is matched with the hoisting gear (1) to move.
2. A winch driven counterweight slippage mechanism as recited in claim 1, wherein: the linkage device is a gear rack mechanism.
3. A winch driven counterweight slippage mechanism as recited in claim 2, wherein: the gear rack mechanism comprises a clutch gear (2) and a rack (3) which are matched, the rack (3) is connected with the counterweight (4), and the clutch gear (2) is meshed with the hoisting gear (1).
4. A winch driven counterweight slippage mechanism as recited in claim 2, wherein: the balance weight (4) is connected with the rack (3) through a fastening bolt.
5. A winch driven counterweight slippage mechanism as recited in claim 1, wherein: the linkage device is a crankshaft connecting rod sliding block mechanism or a chain sprocket mechanism or a worm gear mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322000394.8U CN220485181U (en) | 2023-07-27 | 2023-07-27 | Winch driving counterweight sliding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322000394.8U CN220485181U (en) | 2023-07-27 | 2023-07-27 | Winch driving counterweight sliding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220485181U true CN220485181U (en) | 2024-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322000394.8U Active CN220485181U (en) | 2023-07-27 | 2023-07-27 | Winch driving counterweight sliding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220485181U (en) |
-
2023
- 2023-07-27 CN CN202322000394.8U patent/CN220485181U/en active Active
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