CN202400706U - Automatic protecting device for preventing falling tank of hoisting winch - Google Patents
Automatic protecting device for preventing falling tank of hoisting winch Download PDFInfo
- Publication number
- CN202400706U CN202400706U CN2011204952994U CN201120495299U CN202400706U CN 202400706 U CN202400706 U CN 202400706U CN 2011204952994 U CN2011204952994 U CN 2011204952994U CN 201120495299 U CN201120495299 U CN 201120495299U CN 202400706 U CN202400706 U CN 202400706U
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- CN
- China
- Prior art keywords
- position switch
- time relay
- winch
- lead
- protecting device
- 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 an automatic protecting device for the preventing falling tank of a hoisting winch. According to the automatic protecting device, a saddle position switch (1), a depth indicator position switch (2) and a work brake handle position switch (4) are respectively connected with a time relay (3), wherein the time relay (3) is connected with a downlink alternating current contactor (5); and the downlink alternating current contactor (5) is connected with a winch motor (6). The automatic protecting device has the advantages of simple structure, reliability in use, low investment expense and automatic break off of a motor power supply in abnormal state and is especially suitable for mining enterprises.
Description
Technical field:
The utility model relates to a kind of lifting winch dropping-down-proof pot automatic safety device, when particularly lifting winch moves in vertical shaft below 1.2 meters, and the automatic safety device that prevents to squat jar.
Background technology:
At present, China bargh use lifting winch moves in vertical shaft below 1.2 meters the time, when lifting container arrives middle section position; Easily cause lifting container and stage casing saddle to clash into because of reasons such as operative employee's operation against rules or excessive velocities; Even causing squat jar accident, particularly operative employee because of hilllock or the stage casing whereabouts mistake of sleeping, lifting container does not slow down before arriving middle section position; Cause lifting container and stage casing saddle bump, cause accidents such as lifting container deformed damaged then.
Summary of the invention:
The purpose of the utility model is exactly the lifting winch dropping-down-proof pot automatic safety device that a kind of simple in structure, easy to use, reliable in action will be provided.
The purpose of the utility model is achieved in that a kind of lifting winch dropping-down-proof pot automatic safety device; It is characterized in that saddle position switch, depth indicator position switch, service braking handle position switch are connected with time relay respectively; Time relay is connected with descending AC contactor, and descending AC contactor is connected with winch motor.
The described saddle position switch of the utility model is connected with time relay through the lead I,
The depth indicator position switch is connected with time relay through the lead II, and service braking handle position switch is connected with time relay through the lead III.
The described time relay of the utility model is connected with descending AC contactor through the lead IV, and descending AC contactor is connected with winch motor through the lead V.
The utility model compared with prior art has the following advantages:
Owing to adopt saddle position switch, depth indicator position switch, service braking handle position switch to be connected with time relay respectively; Time relay is connected with descending AC contactor; Descending AC contactor and winch motor bonded assembly version; Thereby have simple in structure, use reliably, investment cost is little, the advantage of automatic cutout motor power when unusual.
Description of drawings:
Figure1 is utility model concrete structure scheme drawing
1, saddle position switch 2, depth indicator position switch 3, time relay 4, service braking handle position switch 5, descending AC contactor 6, winch motor 7, lead I 8, lead II 9, lead III
10, lead IV
11, lead V
The specific embodiment:
Saddle position switch 1, depth indicator position switch 2, service braking handle position switch 4 are connected with time relay 3 respectively, and time relay 3 is connected with descending AC contactor 5, and descending AC contactor 5 is connected with winch motor 6; Saddle position switch 1 is connected with time relay 3 through lead I 7, and depth indicator position switch 2 is connected with time relay 3 through lead II 8, and service braking handle position switch 4 is connected with time relay 3 through lead III 9; Time relay 3 is connected with descending AC contactor 5 through lead IV 10, and descending AC contactor 5 is connected with winch motor 6 through lead V 11.
When lifting ore work was wanted in a certain stage casing of vertical shaft, this stage casing saddle position switch 1 turned to the control position closure because of saddle, and lifting winch moves downwards; When lifting container moves so far 6 meters of tops, stage casing (the lifting winch running velocity 1.5m/s); Depth indicator position switch 2 closures, time relay 3 energisings this moment, the contact time-delay action in 3 seconds of time relay 3; Situation one: if the winch operative employee has operated the service braking rim brake in 3 seconds; Service braking handle position switch 4 closures, short circuit the contact of time relay 3, the winch operative employee operates lifting winch and runs slowly to parking; Situation two: if winch operative employee operation element braking rim brake not in 3 seconds, service braking handle position switch 4 is just not closed, and the contact action of time relay 3 makes descending AC contactor 5 outages, and winch motor 6 has a power failure, and lifting winch is out of service.
Claims (3)
1. lifting winch dropping-down-proof pot automatic safety device; It is characterized in that saddle position switch (1), depth indicator position switch (2), service braking handle position switch (4) are connected with time relay (3) respectively; Time relay (3) is connected with descending AC contactor (5), and descending AC contactor (5) is connected with winch motor (6).
2. a kind of lifting winch dropping-down-proof pot automatic safety device according to claim 1 is characterized in that saddle position switch (1) is connected with time relay (3) through lead I (7),
Depth indicator position switch (2) is connected with time relay (3) through lead II (8), and service braking handle position switch (4) is connected with time relay (3) through lead III (9).
3. a kind of lifting winch dropping-down-proof pot automatic safety device according to claim 1; It is characterized in that time relay (3) is connected with descending AC contactor (5) through lead IV (10), descending AC contactor (5) is connected with winch motor (6) through lead V (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204952994U CN202400706U (en) | 2011-12-02 | 2011-12-02 | Automatic protecting device for preventing falling tank of hoisting winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204952994U CN202400706U (en) | 2011-12-02 | 2011-12-02 | Automatic protecting device for preventing falling tank of hoisting winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202400706U true CN202400706U (en) | 2012-08-29 |
Family
ID=46698371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204952994U Expired - Fee Related CN202400706U (en) | 2011-12-02 | 2011-12-02 | Automatic protecting device for preventing falling tank of hoisting winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202400706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270950A (en) * | 2015-10-28 | 2016-01-27 | 中国矿业大学 | Vertical shaft elevator cage accident miner safety protection device and method |
-
2011
- 2011-12-02 CN CN2011204952994U patent/CN202400706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270950A (en) * | 2015-10-28 | 2016-01-27 | 中国矿业大学 | Vertical shaft elevator cage accident miner safety protection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120829 Termination date: 20121202 |