CN202829200U - Novel slack rope protection device for single-rope winding type hoister - Google Patents
Novel slack rope protection device for single-rope winding type hoister Download PDFInfo
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- CN202829200U CN202829200U CN 201220447096 CN201220447096U CN202829200U CN 202829200 U CN202829200 U CN 202829200U CN 201220447096 CN201220447096 CN 201220447096 CN 201220447096 U CN201220447096 U CN 201220447096U CN 202829200 U CN202829200 U CN 202829200U
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Abstract
The utility model discloses a novel slack rope protection device for a single-rope winding type hoister. The novel slack rope protection device can automatically identify and detect changes of tension of a steel wire rope of a mine hoist in the operation process when a hoisting conveyance is stopped and protect the safe use of a hoisting system. The novel slack rope protection device comprises the hoisting conveyance (6), the steel wire rope (11), a head sheave (3) and a hoister rotary drum (1), wherein an encoder (2) is arranged on one side of the hoister rotary drum (1), and a pressure sensor (4) is arranged at the lower bottom of the head sheave (3) and connected with a programmable controller (8) through a transmitter (5). Due to the fact that the novel slack rope protection device is a vector protection device, the novel slack rope protection device can automatically identify and detect the changes of the tension of the main hoisting steel wire rope when the single-rope winding type hoister is stopped during operation, and then can carry out dynamic tracking and comparison with a corresponding set value which is set in the programmable controller. When an actual measured value is less than the set value, the novel slack rope protection device can power off a winch in time or send out an alarm so as to avoid accidents of rope breakage due to impact and guarantee safety production.
Description
Technical field: the utility model relate to a kind of when lifting container is hindered automatically recognition detection to the variation of Mine Elevator Wire Rope rope tension force in operational process, the novel single rope winding hoist rope-loosing protection device of protection elevator system safe handling.
Background technology: the scope of traditional rope-loosing protection device protection; hindered when lifting container is descending; the steel rope that dangles deadweight is during less than in the vertical direction component of the deadweight of the chord length of steel rope; main hoisting cable string can occur loose; the string of steel rope is loose to be pushed down or pulling or proximity overtravel-limit switch to the rope stretching window, just can play the effect of protection.And when steel rope chord length deadweight component is in the vertical direction conducted oneself with dignity less than the steel rope that dangles; hindered even lifting container is descending; main hoisting cable is loose; this rope creep protection can not move yet; but this loose tension force of main hoisting cable that only shows reduces; the chord length side of steel rope can not loosely be pushed down or pulling or proximity overtravel-limit switch to the rope stretching window, does not have due rope creep protection effect.So the protection domain of traditional rope-loosing protection device is too little; can not play the whole process protection effect; most of stage that lifting container moves in pit shaft is all inoperative; this also is that the lifting container of many single rope winding hoists is descending during by resistance in pit shaft; cause slack rope too much owing to rope creep protection is inoperative, thereby the major cause of disconnected rope pendant skip bucket accident occurs to impact.
The utility model content: the utility model has overcome the drawback that existing mining elevator rope creep protection can not whole process protection; provide a kind of and can omnidistance detect the main hoisting cable suffered tension force that is in operation, thereby distinguished the normal and unusual mining single rope winding hoist rope-loosing protection device that uses of steel wire rope tension.The technical scheme that the utility model adopts for achieving the above object is: it is comprised of lifting container 6, steel rope 11, head sheave 3 and elevator drum 1, lifting container 6 usefulness steel ropes 11 are connected connection by head sheave 3 with elevator drum, coder 2 is arranged on elevator drum 1 one sides, pressure sensor 4 is arranged on head sheave 3 lower bottom parts, and is connected connection with Programmable Logic Controller by transmitter 5.
The beneficial effects of the utility model are: owing to designed a kind of amount of owing fender guard; can change according to the tension force of lifting container master's hoisting cable when pit shaft is transferred the side operation by resistance; whether the given analog quantity of the analog quantity of the tension force of steel rope and setting compares in Programmable Logic Controller when measuring real-world operation by pressure sensor, then make reporting to the police or cutting off the power supply.This rope creep protection is transferred at pit shaft when lifting container and can both be played a protective role when side is moved omnidistance any point generation slack rope; so protection domain is large; actv. prevent that lifting container from transferring the disconnected rope pendant tank event that caused by when resistance and when auxiliary-well takeup can prevent that effectively container from being hindered slack rope cause that too much steel rope damages, can protect to greatest extent the safety of mine hoisting system.This apparatus structure is simple, and design concept is novel, and it is reliable to protect comprehensively, be active in one's movements.Move given value and the measured value of omnidistance any point and compare by lifting container is transferred side at pit shaft, can effectively protect transferring the omnidistance any point of side, thereby guarantee safety in production.
Description of drawings: Fig. 1 is structural representation of the present utility model
The specific embodiment: embodiment 1: as shown in Figure 1, it is comprised of lifting container 6, steel rope 11, head sheave 3 and elevator drum 1, lifting container 6 usefulness steel ropes 11 are connected connection by head sheave 3 with elevator drum, coder 2 is arranged on elevator drum 1 one sides, pressure sensor 4 is arranged on head sheave 3 lower bottom parts, and is connected connection with Programmable Logic Controller by transmitter 5.
As shown in Figure 1, described Programmable Logic Controller 8 lower ends arrange mine hoist safety loop 9.
As shown in Figure 1, described lifting container 6 is promoted to unloading position 7 with steel rope 11 by elevator drum 1 and head sheave 3 and unloads after " loaded " position 10 is loaded.
Embodiment 2: principle of work of the present utility model is: adopt the amount of owing protection and dynamic the tracking relatively; the electric signal analog quantity of the actual pressure of exporting during with the pressure sensor pressurized that is located under the headgear pulley and compare for the linear analogue amount that fixes in the Programmable Logic Controller; thereby judge a kind of protection of steel wire rope tension; the state of kinematic motion of the suffered tension force minimum of steel rope is as research object when normally moving take system; and the minimum tension running state is descending at container; running state when unloaded and weightless; in the hoisting depth scope with this state analysis; its performance characteristic is a linear amount; convert thereof into the electric signal corresponding with pressure sensor to fixing in the Programmable Logic Controller; calculate the pulse of the coder that links to each other with main shaft of hoister by Programmable Logic Controller; draw lifting container moves a former moment at pit shaft depth value; with the given linear equation of this value substitution; can obtain a given value corresponding with the lifting container run location; press the measured value of Magnetic Sensor output in Programmable Logic Controller, to compare during with this given value and running; when measured value during less than setting value; the warning of winch or safety system just give a warning or cut off the power supply; remind hoistman to forbid to promote, after finding out problem, determine whether again the direction of driving and driving.
Claims (3)
1. novel single rope winding hoist rope-loosing protection device; formed by lifting container (6), steel rope (11), head sheave (3) and elevator drum (1); lifting container (6) is connected 1 by head sheave (3) with elevator drum with steel rope (11)) connect; it is characterized in that coder (2) is arranged on elevator drum (1) one side; pressure sensor (4) is arranged on head sheave (3) lower bottom part, and is connected 8 by transmitter (5) with Programmable Logic Controller) connect.
2. novel single rope winding hoist rope-loosing protection device according to claim 1 is characterized in that described Programmable Logic Controller (8) lower end arranges mine hoist safety loop (9).
3. novel single rope winding hoist rope-loosing protection device according to claim 1 is characterized in that described lifting container (6) is promoted to unloading position (7) unloading with steel rope (11) by elevator drum (1) and head sheave (3) after " loaded " position (10) is loaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447096 CN202829200U (en) | 2012-08-24 | 2012-08-24 | Novel slack rope protection device for single-rope winding type hoister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447096 CN202829200U (en) | 2012-08-24 | 2012-08-24 | Novel slack rope protection device for single-rope winding type hoister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202829200U true CN202829200U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220447096 Expired - Fee Related CN202829200U (en) | 2012-08-24 | 2012-08-24 | Novel slack rope protection device for single-rope winding type hoister |
Country Status (1)
| Country | Link |
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| CN (1) | CN202829200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407853A (en) * | 2013-08-27 | 2013-11-27 | 闫丰伟 | Cage blocking alarming system of hoist |
-
2012
- 2012-08-24 CN CN 201220447096 patent/CN202829200U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407853A (en) * | 2013-08-27 | 2013-11-27 | 闫丰伟 | Cage blocking alarming system of hoist |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Yuan Zhikun Document name: Notification of Acceptance of Patent Application |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130824 |