CN202967977U - Winch for crane - Google Patents
Winch for crane Download PDFInfo
- Publication number
- CN202967977U CN202967977U CN 201220611362 CN201220611362U CN202967977U CN 202967977 U CN202967977 U CN 202967977U CN 201220611362 CN201220611362 CN 201220611362 CN 201220611362 U CN201220611362 U CN 201220611362U CN 202967977 U CN202967977 U CN 202967977U
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- CN
- China
- Prior art keywords
- gear
- winch
- motor
- rotating
- shaft
- 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 - Fee Related
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a winch for a crane. The winch comprises a winding drum and a wall frame, wherein a motor and a speed reducer are arranged on the wall frame, the output end of the motor is connected with the speed reducer, an output shaft of the speed reducer is connected with a rotating shaft of the winding drum, a first gear is arranged on the rotating shaft of the winding drum, a shaft is rotatablely arranged on the wall frame, a second gear is fixedly connected onto the shaft, the second gear is engaged with the first gear, the shaft is connected with an encoder, the encoder is electrically connected with a PLC (programmable logic controller) controller, and the PLC controller is electrically connected with the motor. The winch for the crane has the advantages that the rotating circle number of the winding drum is counted through the encoder, and when the rotating circle number respectively reaches the positive rotating set valve and the opposite rotating set valve, the PLC controller outputs a position limiting signal, so the motor is controlled to stop rotating, a lifting hook stops in a position at the upper and lower limit, the structure is simple, and the realization is easy.
Description
Technical field
The utility model relates to a kind of hoisting crane, relates in particular to a kind of winch of hoisting crane.
Background technology
Hoisting crane belongs to a kind of of elevator machinery, be a kind ofly circulate, the machinery of intermittent moment.Hoisting crane mainly comprises lifting mechanism, operating unit, luffing mechanism, swing type mechanism and metal construction etc.Lifting mechanism is the groundwork mechanism of hoisting crane, mostly is comprised of hangar system and winch.When working, walk about, and accept password, the indication of ground operating personal by the object that the steel rope that needs personnel constantly to pay close attention to winch is cared for winch for existing hoisting crane, cut off motor power with range estimation in good time, just in case make a fault, winch drum rotates transition, causes safety misadventure.
The utility model content
The purpose of this utility model is for the problems referred to above, and a kind of winch of simple in structure, hoisting crane with limit function is provided.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of winch of hoisting crane, comprise reel and wall frame, on described wall frame, motor and speed reducer is installed, the mouth of described motor is connected with reductor, the output shaft of described reductor is connected with the rotating shaft of reel, the first gear is installed in the rotating shaft of described reel, the rotating axle that is provided with on described wall frame, be fixedly connected with the second gear on described axle, described the second gear and the engagement of the first gear, described axle is connected with coder, and described coder is electrically connected to the PLC controller, and described PLC controller is electrically connected to motor.
Further, described the second gear is connected with axle key.
Further, described axle is connected with coder by coupler.
The beneficial effects of the utility model are, the winch of described hoisting crane by coder to reel turning collar counting number, when the rotation number of turns reaches respectively forward setting value and counter-rotating setting value, limit signal of PLC controller output, thereby controlling motor stops operating, make suspension hook stop at the position of high-low limit, simple in structure, be easy to realize.
Description of drawings
Fig. 1 is the structural representation of the winch of a kind of hoisting crane of the utility model;
Fig. 2 is that the winch A of a kind of hoisting crane shown in Figure 1 is to view;
Fig. 3 is that Fig. 2 is in the cross-sectional schematic at B-B place.
In figure:
1, reel; 2, reductor; 3, the first gear; 4, motor; 5, wall frame; 6, the second gear; 7, coder cover; 8, coder; 9, cover plate; 10, coupler; 11, axle; 12, flat key.
The specific embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
please refer to Fig. 1 to shown in Figure 3, in the present embodiment, a kind of winch of hoisting crane, comprise reel 1 and wall frame 5, motor 4 and reductor 2 are installed on described wall frame 5, the mouth of described motor 4 is connected with reductor 2, the output shaft of described reductor 2 is connected with the rotating shaft of reel 1, the first gear 3 is installed in the rotating shaft of described reel 1, the 5 rotating axles 11 that are provided with on described wall frame, be connected with the second gear 6 by flat key 12 on described axle 11, described the second gear 6 is meshed with the first gear 3, described axle 11 is connected by coupler 10 coder 8 interior with being arranged on coder cover 7, and coder cover 7 rear ends are provided with cover plate 9, described coder 8 is electrically connected to the PLC controller, described PLC controller is electrically connected to motor 4.
During the utility model work, by 8 pairs of reels of coder, 1 turning collar counting number, when the rotation number of turns reaches respectively forward setting value and counter-rotating setting value, limit signal of PLC controller output stops operating thereby control motor 4, makes suspension hook stop at the position of high-low limit, simple in structure, be easy to realize, and easy to operate, effectively prevent the generation of safety misadventure.
Above embodiment has just set forth groundwork of the present utility model and characteristic; the utility model is not limited by above-described embodiment; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the winch of a hoisting crane, comprise reel and wall frame, on described wall frame, motor and speed reducer is installed, the mouth of described motor is connected with reductor, the output shaft of described reductor is connected with the rotating shaft of reel, it is characterized in that: the first gear is installed in the rotating shaft of described reel, the rotating axle that is provided with on described wall frame, be fixedly connected with the second gear on described axle, described the second gear and the engagement of the first gear, described axle is connected with coder, and described coder is electrically connected to the PLC controller, and described PLC controller is electrically connected to motor.
2. the winch of a kind of hoisting crane according to claim 1, it is characterized in that: described the second gear is connected with axle key.
3. the winch of a kind of hoisting crane according to claim 1, it is characterized in that: described axle is connected with coder by coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611362 CN202967977U (en) | 2012-11-16 | 2012-11-16 | Winch for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611362 CN202967977U (en) | 2012-11-16 | 2012-11-16 | Winch for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202967977U true CN202967977U (en) | 2013-06-05 |
Family
ID=48509081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611362 Expired - Fee Related CN202967977U (en) | 2012-11-16 | 2012-11-16 | Winch for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202967977U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942136A (en) * | 2012-11-16 | 2013-02-27 | 无锡市华星船舶设备有限公司 | Crane winch |
| CN103466484A (en) * | 2013-09-24 | 2013-12-25 | 常熟市永固起重设备安装工程有限公司 | Gear-type electric lifting platform |
| CN104973526A (en) * | 2015-07-06 | 2015-10-14 | 常熟市康达电器有限公司 | Distance measuring device for coal mine inclined roadway winch |
-
2012
- 2012-11-16 CN CN 201220611362 patent/CN202967977U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942136A (en) * | 2012-11-16 | 2013-02-27 | 无锡市华星船舶设备有限公司 | Crane winch |
| CN103466484A (en) * | 2013-09-24 | 2013-12-25 | 常熟市永固起重设备安装工程有限公司 | Gear-type electric lifting platform |
| CN104973526A (en) * | 2015-07-06 | 2015-10-14 | 常熟市康达电器有限公司 | Distance measuring device for coal mine inclined roadway winch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20151116 |
|
| EXPY | Termination of patent right or utility model |