CN202358792U - Mechanical overspeed protective device of mine hoist - Google Patents
Mechanical overspeed protective device of mine hoist Download PDFInfo
- Publication number
- CN202358792U CN202358792U CN2011205156304U CN201120515630U CN202358792U CN 202358792 U CN202358792 U CN 202358792U CN 2011205156304 U CN2011205156304 U CN 2011205156304U CN 201120515630 U CN201120515630 U CN 201120515630U CN 202358792 U CN202358792 U CN 202358792U
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- CN
- China
- Prior art keywords
- mine hoist
- protective device
- mechanical
- belt pulley
- overspeed protective
- 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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Abstract
The utility model discloses a mechanical overspeed protective device of a mine hoist. The mechanical overspeed protective device is characterized in that a shaft is installed on a bearing seat; a belt pulley is arranged at one end of the shaft; the belt pulley is in mechanical transmission with the tachogenerator of the mine hoist; and a tachometric relay is arranged at the other end of the shaft. The mechanical overspeed protective device disclosed by the utility model is high in precision, rapid in response and reliable in performance, and is cooperated with an electric control system so as to truly realize the overspeed protection double-wire system stated by safety regulations in coal mine.
Description
Technical field
The utility model relates to the mine hoist field, especially relates to the mine hoist overspeed protection device.
Background technology
The runaway accident that repeatedly exceeds the speed limit once took place in hoister control system, was the safety in production of protection mine, and each mine hoist equipment of coal system an urgent demand is set up a kind of mechanical overspeed protection control fender guard, the generation of fundamentally stopping accident.But present domestic electric protection reliability is unstable, and the key link that possibly break down is many, can't guarantee electric-control system realization safe operation, and external similar advanced product is difficult to generally use owing to reasons such as prices.Therefore, need base oneself upon China's national situation, the mine hoist overspeed protection device that research and development can actually be applied.
Summary of the invention
The purpose of the utility model is to accomplish the mechanical overspeed protection control fender guard of elevator overspeed protection through a kind of tachometric survey unit and tach signal unit.
The technical scheme that the utility model is taked is: it is on a bearing seat, axle to be installed, and an end of axle is provided with belt pulley, the tachogenerator mechanical drive of belt pulley and mine hoist, and the other end of axle is provided with tachometric relay.
When tachogenerator rotated, belt pulley drove tachometric relay and rotates.When tachometric relay rotates, tach signal is passed to the inner tachometric survey of mine hoist control system unit, handle by the action of tachometric survey unit then.In case hypervelocity, signal element is measured action, realizes safety arrestment when winch.
The beneficial effect of the utility model is, this device volume is little, and precision is high, and response is fast, and dependable performance is used the overspeed protection two wire system of real realization " safety regulations in coal mine " defined with electric-control system.
Description of drawings
Fig. 1 is the utility model embodiment front view.
Among the figure, 1-belt pulley, 2-axle, 3-bearing seat, 4-tachometric relay.
The specific embodiment
As shown in Figure 1, the utility model is that axle 2 is installed on bearing seat 3, and an end of axle 2 is provided with belt pulley 1, the tachogenerator mechanical drive of belt pulley 1 and mine hoist, and the other end of axle 2 is provided with tachometric relay 4.When tachogenerator rotated, belt pulley 1 drove tachometric relay 4 and rotates.
Claims (1)
1. a mine hoist mechanical overspeed protection control fender guard is characterized in that, it is on a bearing seat, axle to be installed, and an end of axle is provided with belt pulley, the tachogenerator mechanical drive of belt pulley and mine hoist, and the other end of axle is provided with tachometric relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205156304U CN202358792U (en) | 2011-12-12 | 2011-12-12 | Mechanical overspeed protective device of mine hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205156304U CN202358792U (en) | 2011-12-12 | 2011-12-12 | Mechanical overspeed protective device of mine hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202358792U true CN202358792U (en) | 2012-08-01 |
Family
ID=46569997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205156304U Expired - Fee Related CN202358792U (en) | 2011-12-12 | 2011-12-12 | Mechanical overspeed protective device of mine hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202358792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003617A (en) * | 2019-12-19 | 2020-04-14 | 临沂矿业集团菏泽煤电有限公司 | Elevator control system for coal mine, overspeed alarm method and residue detection method |
-
2011
- 2011-12-12 CN CN2011205156304U patent/CN202358792U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003617A (en) * | 2019-12-19 | 2020-04-14 | 临沂矿业集团菏泽煤电有限公司 | Elevator control system for coal mine, overspeed alarm method and residue detection method |
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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: 20120801 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |