CN210795558U - Rope loosening protection device for single-rope winding type elevator - Google Patents
Rope loosening protection device for single-rope winding type elevator Download PDFInfo
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- CN210795558U CN210795558U CN201921852170.7U CN201921852170U CN210795558U CN 210795558 U CN210795558 U CN 210795558U CN 201921852170 U CN201921852170 U CN 201921852170U CN 210795558 U CN210795558 U CN 210795558U
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- rope
- proximity switch
- magnetic proximity
- detection pull
- pull rope
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Abstract
The utility model relates to a rope-loosening protection device for a single-rope winding type hoister, which comprises a detection pull rope, a fixed pulley, a first magnetic proximity switch, a second magnetic proximity switch and a weight block; the detection pull rope is vertically arranged below a steel wire rope of the single-rope winding type hoister, one end of the detection pull rope is connected with the weight block, and the other end of the detection pull rope is fixed; the detection pull rope rounds the fixed pulley, a first magnetic proximity switch is fixedly arranged at a designated position between the detection pull rope and the weight block below the fixed pulley, and a second magnetic proximity switch is fixedly arranged at a designated position on the other side of the weight block. Through the utility model discloses, can replace original relay point contact control system, great promotion rope loosening protection system's control accuracy and sensitivity to and the safety and stability nature of system.
Description
Technical Field
The utility model relates to an equipment protection technical field, more specifically say, relate to a single rope winding type lifting machine slack rope protection device.
Background
The single-rope winding type hoister is widely applied to hoisting of a coal mine shaft, and in order to prevent a rope loosening phenomenon caused by the fact that a hoisting container is prevented from being lowered and blocked, impact load is formed on a steel wire rope, even rope breakage and a hoisting container falling into the shaft are caused, the winding type hoister is required to be provided with a rope loosening protection function according to the clear regulation of coal mine safety regulations.
Most of traditional hoisting system rope loosening protection devices detect faults by utilizing a travel switch, and when the rope loosening fault occurs, a steel wire rope sags and is in contact with the travel switch below the steel wire rope, so that an alarm and brake control circuit is switched on, and the rope loosening protection function is realized. Because the traditional rope loosening protection device for the hoisting system is mostly purely mechanical, the sensitivity is low, the automation degree is low, the system stability is poor, and enterprises and research institutions at home and abroad also study the rope loosening protection system, but give up due to reasons of all aspects, so that the study and design of the novel rope loosening protection device for the single-rope winding type hoisting machine are extraordinarily important.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, a single rope winding type lifting machine slack rope protection device is provided.
The utility model provides a technical scheme that its technical problem adopted is: the rope loosening protection device for the single-rope winding type elevator is constructed and comprises a detection pull rope, a fixed pulley, a first magnetic proximity switch, a second magnetic proximity switch and a weight block; the detection pull rope is vertically arranged below a steel wire rope of the single-rope winding type hoister, one end of the detection pull rope is connected with the weight block, and the other end of the detection pull rope is fixed; the detection pull rope rounds the fixed pulley, a first magnetic proximity switch is fixedly arranged at a designated position between the detection pull rope and the weight block below the fixed pulley, and a second magnetic proximity switch is fixedly arranged at a designated position on the other side of the weight block.
In the rope loosening protection device for single-rope winding type elevator, the first magnetic proximity switch and the second magnetic proximity switch are connected to the rope loosening protection device for the winding type elevator, and when the first magnetic proximity switch or the second magnetic proximity switch generates an induction signal, the rope loosening protection device is controlled to perform rope loosening protection on the steel wire rope.
Different from the prior art, the rope loosening protection device for the single-rope winding type elevator provided by the utility model comprises a detection pull rope, a fixed pulley, a first magnetic proximity switch, a second magnetic proximity switch and a weight block; the detection pull rope is vertically arranged below a steel wire rope of the single-rope winding type hoister, one end of the detection pull rope is connected with the weight block, and the other end of the detection pull rope is fixed; the detection pull rope rounds the fixed pulley, a first magnetic proximity switch is fixedly arranged at a designated position between the detection pull rope and the weight block below the fixed pulley, and a second magnetic proximity switch is fixedly arranged at a designated position on the other side of the weight block. Through the utility model discloses, can replace original relay point contact control system, great promotion rope loosening protection system's control accuracy and sensitivity to and the safety and stability nature of system.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is the schematic structural diagram of the rope-loosening protection device for the single-rope winding type elevator of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the rope loosening protection device for single-rope winding type elevator of the present invention comprises a detection pull rope 1, a fixed pulley 4, a first magnetic proximity switch 5, a second magnetic proximity switch 7 and a weight block 6. The detection pull rope 1 is vertically arranged below a steel wire rope 2 of the single-rope winding type elevator, one end of the detection pull rope is connected with a weight block 6, and the other end of the detection pull rope is fixed; the detection pull rope 1 passes around the fixed pulley 4, a first magnetic proximity switch 5 is fixedly arranged at a designated position between the detection pull rope 1 and the weight block 6 below the fixed pulley 4, and a second magnetic proximity switch 7 is fixedly arranged at a designated position on the other side of the weight block 6.
First magnetism proximity switch 5, second magnetism proximity switch 7 all are connected to the slack rope protection device of wound form lifting machine, and when first magnetism proximity switch 5 or second magnetism proximity switch 7 produced inductive signal, control slack rope protection device carries out slack rope protection to wire rope 2.
As shown in fig. 1, when the pull cord 1 is in the normal position, the weight block 6 is in the natural state and is located at the position 10 shown in fig. 1, and at this time, the magnetic proximity switches 5 and 7 do not have feedback signals and do not send signals to the slack cord protection device, and the slack cord protection device does not act.
When the steel wire rope 2 is loosened, the detection stay wire 1 is located at the position 3 under the action of the pressure of the steel wire rope 2, the weight block 6 is pulled to reach the position 9 shown in the figure 1 through the detection stay wire 1 under the action of the fixed pulley 4, and at the moment, the first magnetic proximity switch 5 has a feedback signal and sends the signal to the rope loosening protection device to perform rope loosening protection action.
When the detection pull wire 1 is broken due to exceeding the use time limit or due to the pressure or friction force action of the steel wire rope 2, the weight block 6 falls on the position 8 shown in the figure 1, and the second magnetic proximity switch 7 has a feedback signal at the moment and sends the signal to the rope loosening protection device to perform the rope loosening protection action.
The utility model discloses a single rope wound form lifting machine slack rope protection device has slack rope action and detects and the fracture of acting as go-between detects, judges through the different positions of counter weight piece 6 that wire rope is normal, slack rope, three kinds of different states of detection stay cord fracture.
Different from the prior art, the rope loosening protection device for the single-rope winding type elevator provided by the utility model comprises a detection pull rope, a fixed pulley, a first magnetic proximity switch, a second magnetic proximity switch and a weight block; the detection pull rope is vertically arranged below a steel wire rope of the single-rope winding type hoister, one end of the detection pull rope is connected with the weight block, and the other end of the detection pull rope is fixed; the detection pull rope rounds the fixed pulley, a first magnetic proximity switch is fixedly arranged at a designated position between the detection pull rope and the weight block below the fixed pulley, and a second magnetic proximity switch is fixedly arranged at a designated position on the other side of the weight block. Through the utility model discloses, can replace original relay point contact control system, great promotion rope loosening protection system's control accuracy and sensitivity to and the safety and stability nature of system.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (2)
1. A rope loosening protection device of a single-rope winding type elevator is characterized by comprising a detection pull rope, a fixed pulley, a first magnetic proximity switch, a second magnetic proximity switch and a weight block; the detection pull rope is vertically arranged below a steel wire rope of the single-rope winding type hoister, one end of the detection pull rope is connected with the weight block, and the other end of the detection pull rope is fixed; the detection pull rope rounds the fixed pulley, a first magnetic proximity switch is fixedly arranged at a designated position between the detection pull rope and the weight block below the fixed pulley, and a second magnetic proximity switch is fixedly arranged at a designated position on the other side of the weight block.
2. The rope loosening protection device for the single-rope winding type hoisting machine according to claim 1, wherein the first magnetic proximity switch and the second magnetic proximity switch are both connected to the rope loosening protection device for the winding type hoisting machine, and when the first magnetic proximity switch or the second magnetic proximity switch generates an induction signal, the rope loosening protection device is controlled to perform rope loosening protection on the steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921852170.7U CN210795558U (en) | 2019-10-31 | 2019-10-31 | Rope loosening protection device for single-rope winding type elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921852170.7U CN210795558U (en) | 2019-10-31 | 2019-10-31 | Rope loosening protection device for single-rope winding type elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210795558U true CN210795558U (en) | 2020-06-19 |
Family
ID=71240840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921852170.7U Expired - Fee Related CN210795558U (en) | 2019-10-31 | 2019-10-31 | Rope loosening protection device for single-rope winding type elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210795558U (en) |
-
2019
- 2019-10-31 CN CN201921852170.7U patent/CN210795558U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 Termination date: 20201031 |