CN201678375U - Large-stroke steel wire rope tensioning mechanism - Google Patents
Large-stroke steel wire rope tensioning mechanism Download PDFInfo
- Publication number
- CN201678375U CN201678375U CN 201020118073 CN201020118073U CN201678375U CN 201678375 U CN201678375 U CN 201678375U CN 201020118073 CN201020118073 CN 201020118073 CN 201020118073 U CN201020118073 U CN 201020118073U CN 201678375 U CN201678375 U CN 201678375U
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- CN
- China
- Prior art keywords
- steel wire
- wire rope
- tensioning
- fixed pulley
- drawing capstan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 40
- 239000010959 steel Substances 0.000 title claims abstract description 40
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
The utility model discloses a large-stroke steel wire rope tensioning mechanism, which is used for tensioning a steel wire rope led out of a steel wire rope towing main drum. The large-stroke steel wire rope tensioning mechanism comprises a tensioning drum, a fixed pulley block and a tensioning drum driving mechanism for driving the tensioning drum to rotate; and the steel wire rope led out of the steel wire rope towing main drum bypasses the fixed pulley block and then is towed to move by the tensioning drum. The large-stroke steel wire rope tensioning mechanism realizes tensioning of the steel wire rope by the tensioning drum controlled by a motor driven mechanism, and can realize tensioning of the steel wire rope in the larger distance range and has the advantages of simple structure, high action sensitivity and easy maintenance.
Description
Technical field
The utility model relates to the stretching device of steel rope, relates in particular to the stretching device of the steel rope of hoisting crane.
Background technology
Along with being on the increase that steel rope in the container handling crane uses, the tensioning problem of steel rope also becomes more and more important.Traditional hydraulic tensioning mechanism has following shortcoming when realizing the steel rope tensioning: because the length of oil cylinder can't be done oversizely, limited the slack-free degree of steel rope; The action response of hydraulic efficiency pressure system own is slow, adapts to the mechanism of quick operation is very difficult.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of can realize the slack-free steel rope stretching device of steel rope in big distance range.
The technical scheme that the utility model adopted is: a kind of big stroke steel rope stretching device, be used for the steel rope of drawing from the rope traction main drum is carried out tensioning the drawing capstan driver train that this stretching device comprises drawing capstan, fixed pulley group and is used to drive the drawing capstan rotation; The steel rope that this rope traction main drum is drawn is moved by the drawing capstan traction after walking around this fixed pulley group.
The utility model is the tensioning that realizes steel rope by the drawing capstan of being controlled by motor-driven mechanism, can realize the tensioning to steel rope in big distance range, and simple in structure, operating sensitivity height, maintenance easily.
Description of drawings
Fig. 1 is the schematic diagram of a kind of embodiment of steel rope stretching device of the present utility model.
Fig. 2 is the local enlarged diagram of the another embodiment of steel rope stretching device of the present utility model.
Fig. 3 is the scheme drawing of the driver train of drawing capstan of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is made and to be further specified.
In conjunction with shown in Figure 1, big stroke steel rope stretching device of the present utility model is used for the steel rope 2 of drawing from rope traction main drum 1 is carried out tensioning.The drawing capstan driver train that this stretching device comprises drawing capstan 3, fixed pulley group 4 and is used to drive drawing capstan 1 rotation.The steel rope 2 that rope traction main drum 1 is drawn is walked around fixed pulley group 4 backs and is moved by drawing capstan 3 tractions.In Fig. 1, two steel ropes that rope traction main drum 1 is drawn all are wrapped on the drawing capstan 3 after commutating by fixed pulley group 4.Above-mentioned fixed pulley group 4 comprises a plurality of fixed pulleys, and the quantity of the steel rope that its quantity, arrangement mode and rope traction main drum 1 are drawn all is not limited to the mode shown in Fig. 1.
Fig. 3 shows drawing capstan driver train of the present utility model, it comprises motor 5 and planetary gear reduction box 6, the power take-off shaft of motor 5 is connected with the input shaft of planetary gear reduction box 6, the output shaft of this planetary gear reduction box 6 is connected with the drum shaft 31 of drawing capstan 3, drives drawing capstan 3 rotations.The requirement of huge force of inertia when quickening in order to satisfy, the output torque of planetary gear reduction box 6 needs enough big, and it is constant that motor 5 needs to keep moment of torsion when low cruise.If under the situation that above force of inertia requires to be not easy to satisfy, can use auxiliary running block 8, the requirement that realization reduces by half planetary gear reduction box 6 output torques, as shown in Figure 2.
Should be arranged between drawing capstan 3 and the fixed pulley group 4 by auxiliary running block 8, and can move by these drawing capstan 3 tractions; The steel rope 2 that rope traction main drum 1 is drawn is connected on this auxiliary running block 8 after walking around fixed pulley group 4, thereby when drawing capstan 3 pulling assembly pulleys 8 moved, steel rope 2 also moved thereupon.In addition, the displacement position-limiting device of auxiliary running block 8 can be set preferably, out of control to prevent auxiliary running block 8 miles of relative movement.Should only when steel wire rope tension is big, use by auxiliary running block 8,, then this auxiliary running block can be set if steel wire rope tension is little.
Claims (4)
1. one kind big stroke steel rope stretching device, be used for the steel rope of drawing from the rope traction main drum is carried out tensioning, it is characterized in that the drawing capstan driver train that this stretching device comprises drawing capstan, fixed pulley group and is used to drive described drawing capstan rotation; The steel rope that described rope traction main drum is drawn is moved by described drawing capstan traction after walking around described fixed pulley group.
2. stretching device as claimed in claim 1 is characterized in that, the steel rope that described rope traction main drum is drawn is wrapped on the described drawing capstan after walking around described fixed pulley group.
3. stretching device as claimed in claim 1 is characterized in that, this stretching device also comprises an auxiliary running block, and this auxiliary running block is arranged between described drawing capstan and the described fixed pulley group, and can be moved by this drawing capstan traction; The steel rope that described rope traction main drum is drawn is connected on this auxiliary running block after walking around described fixed pulley group.
4. stretching device as claimed in claim 1, it is characterized in that, described drawing capstan driver train comprises motor and planetary gear reduction box, the power take-off shaft of described motor is connected with the input shaft of described planetary gear reduction box, and the output shaft of this planetary gear reduction box is connected with the drum shaft of described drawing capstan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020118073 CN201678375U (en) | 2010-02-25 | 2010-02-25 | Large-stroke steel wire rope tensioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020118073 CN201678375U (en) | 2010-02-25 | 2010-02-25 | Large-stroke steel wire rope tensioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201678375U true CN201678375U (en) | 2010-12-22 |
Family
ID=43343428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020118073 Expired - Lifetime CN201678375U (en) | 2010-02-25 | 2010-02-25 | Large-stroke steel wire rope tensioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201678375U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332620A (en) * | 2013-07-05 | 2013-10-02 | 无锡港盛港口机械有限公司 | Rope winding structure of main trolley tow ropes of crane |
| CN108529451A (en) * | 2018-04-13 | 2018-09-14 | 广西建工集团建筑机械制造有限责任公司 | Tower crane trolley haulage cable electric tension mechanism |
| CN113735002A (en) * | 2021-08-30 | 2021-12-03 | 浙江三一装备有限公司 | Crane, steel wire rope pre-tightening device and method thereof, electronic equipment and storage medium |
-
2010
- 2010-02-25 CN CN 201020118073 patent/CN201678375U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332620A (en) * | 2013-07-05 | 2013-10-02 | 无锡港盛港口机械有限公司 | Rope winding structure of main trolley tow ropes of crane |
| CN108529451A (en) * | 2018-04-13 | 2018-09-14 | 广西建工集团建筑机械制造有限责任公司 | Tower crane trolley haulage cable electric tension mechanism |
| CN113735002A (en) * | 2021-08-30 | 2021-12-03 | 浙江三一装备有限公司 | Crane, steel wire rope pre-tightening device and method thereof, electronic equipment and storage medium |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |