CN211004309U - Safety protection device for cantilever crane winch - Google Patents
Safety protection device for cantilever crane winch Download PDFInfo
- Publication number
- CN211004309U CN211004309U CN201921820398.8U CN201921820398U CN211004309U CN 211004309 U CN211004309 U CN 211004309U CN 201921820398 U CN201921820398 U CN 201921820398U CN 211004309 U CN211004309 U CN 211004309U
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- China
- Prior art keywords
- limit switch
- movable lever
- connecting rod
- fixed
- guide groove
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Abstract
The utility model discloses a safety arrangement for cantilever crane hoist engine, including fixed connecting rod, activity lever, limit switch and U type guide slot. The fixed connecting rod is vertically fixed on one side of the winding drum, the movable lever is hinged with the fixed connecting rod, and the U-shaped guide groove is fixed on the other side of the winding drum; the limit switch is fixed on the fixed connecting rod and used for switching on and off the power of the winch; the limit switch is provided with a limit pull ring which is fixedly connected with the movable lever; the movable lever penetrates through a steel wire rope on the lifting hook, when the movable lever is lapped in the U-shaped guide groove, the limit switch is in a power-on state, and when the movable lever leaves the U-shaped guide groove, the limit switch is in a power-off state. This device can effectively prevent lifting hook and reel collision.
Description
Technical Field
The utility model relates to an industry electrical technology field, concretely relates to safety arrangement for cantilever crane hoist engine.
Background
Fixed cantilever crane generally is used for lifting by crane the light-tonnage article, and stop device on its hoist engine drives the pull rod power-off switch through following the rope ware usually, nevertheless this kind of mode can lead to the power-off switch fragile to roll up the motor and often can't stop when lifting by crane in the operation, cause the lifting hook to be by the top bad, wire rope fracture when serious, consequently have very big potential safety hazard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a safety arrangement for cantilever crane hoist engine to solve the unable normal problem that stops, causes the damage to the hoist engine of lifting hook.
In order to achieve the purpose, the utility model discloses a safety protection device for a cantilever crane winch, a steel wire rope is wound on a winding drum of the winch, and two ends of the steel wire rope are connected with a lifting hook; the device comprises a fixed connecting rod, a movable lever, a limit switch and a U-shaped guide groove. The fixed connecting rod is vertically fixed on one side of the winding drum, the movable lever is hinged with the fixed connecting rod, and the U-shaped guide groove is fixed on the other side of the winding drum; the limit switch is fixed on the fixed connecting rod and used for switching on and off the winch; the limit switch is provided with a limit pull ring which is fixedly connected with the movable lever; the movable lever penetrates through a steel wire rope on the lifting hook, when the movable lever is lapped on the U-shaped guide groove, the limit switch is in a power-on state, and when the movable lever leaves the U-shaped guide groove, the limit switch is in a power-off state.
The utility model has the advantages that: the lifting hook rises to touch the movable lever, so that the limit switch is powered off, the winch is powered off, and the lifting hook stops at a position needing to stop, thereby playing a role in safety protection. And at ordinary times, the movable lever is lapped in the U-shaped guide groove, and the limit switch is in a switch-on state. The device has simple structure, convenience and practicability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure, 1-reel, 2-fixed connecting rod, 3-movable lever, 4-U-shaped guide groove, 5-limit switch and 6-hook.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, a safety protection device for a cantilever crane winch is characterized in that a steel wire rope is wound on a winding drum 1 of the winch, and two ends of the steel wire rope are connected with a lifting hook 6; the device comprises a fixed connecting rod 2, a movable lever 3, a limit switch 4 and a U-shaped guide groove 5. The fixed connecting rod 2 is vertically fixed on one side of the winding drum 1, the movable lever 3 is hinged with the fixed connecting rod 2, and the U-shaped guide groove 5 is fixed on the other side of the winding drum 1; the limit switch 4 is fixed on the fixed connecting rod 2, and the limit switch 4 is used for switching on and off the winch; the limit switch 4 is provided with a limit pull ring which is fixedly connected with the movable lever 3; the movable lever 3 passes through a steel wire rope on the lifting hook 6, when the movable lever 3 is lapped on the U-shaped guide groove 5, the limit switch 4 is in a power-on state, and when the movable lever 3 leaves the U-shaped guide groove 5, the limit switch 4 is in a power-off state. The movable lever 3 in this embodiment is made of round steel having a diameter of 10 mm.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes that can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art can be made within the scope of the claims of the present invention.
Claims (1)
1. A safety protection device for a cantilever crane winch is characterized in that a steel wire rope is wound on a winding drum (1) of the winch, and two ends of the steel wire rope are connected with a lifting hook (6); the method is characterized in that: the device comprises a fixed connecting rod (2), a movable lever (3), a limit switch (4) and a U-shaped guide groove (5); the fixed connecting rod (2) is vertically fixed on one side of the winding drum (1), the movable lever (3) is hinged with the fixed connecting rod (2), and the U-shaped guide groove (5) is fixed on the other side of the winding drum (1); the limit switch (4) is fixed on the fixed connecting rod (2), and the limit switch (4) is used for switching on and off the winch; the limit switch (4) is provided with a limit pull ring which is fixedly connected with the movable lever (3); the movable lever (3) penetrates through a steel wire rope on the lifting hook (6), when the movable lever (3) is lapped on the U-shaped guide groove (5), the limit switch (4) is in a power-on state, and when the movable lever (3) leaves the U-shaped guide groove (5), the limit switch (4) is in a power-off state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921820398.8U CN211004309U (en) | 2019-10-28 | 2019-10-28 | Safety protection device for cantilever crane winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921820398.8U CN211004309U (en) | 2019-10-28 | 2019-10-28 | Safety protection device for cantilever crane winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211004309U true CN211004309U (en) | 2020-07-14 |
Family
ID=71480691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921820398.8U Active CN211004309U (en) | 2019-10-28 | 2019-10-28 | Safety protection device for cantilever crane winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211004309U (en) |
-
2019
- 2019-10-28 CN CN201921820398.8U patent/CN211004309U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |