CN202808198U - Safety device for cable pulley of crane - Google Patents
Safety device for cable pulley of crane Download PDFInfo
- Publication number
- CN202808198U CN202808198U CN 201220527854 CN201220527854U CN202808198U CN 202808198 U CN202808198 U CN 202808198U CN 201220527854 CN201220527854 CN 201220527854 CN 201220527854 U CN201220527854 U CN 201220527854U CN 202808198 U CN202808198 U CN 202808198U
- Authority
- CN
- China
- Prior art keywords
- cable
- connecting rod
- safety device
- pulley
- cable pulley
- 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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- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
Abstract
The utility model provides a safety device for a cable pulley of a crane. The safety device comprises a draw cord, a connecting rod unit, a warning unit and a position stop block. One end of the draw cord is connected with the connecting rod unit, and the other end is connected with a cable pulley track support; and the connecting rod unit, the warning unit and the position stop block are connected with a cable sliding track respectively. According to the safety device for the cable pulley of the crane, the cable pulley is dropped on the draw cord after being dropped, damages caused by direct dropping of the cable pulley and a cable are avoided, the warning unit warns operating personnel to perform processing in time.
Description
Technical field
The utility model relates to the safety method field, particularly a kind of cable pulley of crane safety device.
Background technology
Crane in bridge type, gantry crane trolley power supply mode adopt cable coaster to move power supply usually.Cable coaster moves frequently, is prone to the rotatable parts corrosion, pulley rotate cable coaster that dumb etc. reason causes not with the dolly synchronizing moving, cable coaster will come off from track, cable is broken, and causes equipment breakdown.Cold rolling two subsidiary factories of Wuhan Iron and Steel Plant pass through the contact point of control travel switch to the operating unit danger signal; the crane power down is out of service; although protected cable; but all be that dolly is under the high-speed cruising state when cable coaster comes off; have a power failure suddenly; dolly can not controlled by the driver because inertia continues to slide, and brings larger potential safety hazard for ground staff and equipment.
The utility model content
Technical problem to be solved in the utility model provides a kind of effectively check cable coaster and comes off from track, does not give ground staff and equipment because of the hoisting crane power down again and brings the safety alarm device of potential safety hazard.
For solving the problems of the technologies described above, the utility model provides a kind of cable pulley of crane safety device, and it comprises stay cord, linkage, warning device and position stop; Described stay cord one end links to each other with described linkage, and the other end links to each other with cable car pulley rail support; Described linkage, warning device and position stop are connected with the cable car pulley rail respectively.
Further, described linkage comprises connecting rod, pivot pin and connecting rod base; Described connecting rod base links to each other with described cable coaster track; Described pivot pin is connected to described connecting rod on the described connecting rod base.
Further, this device also comprises torque spring, and described torque spring is fixed on described pivot pin.
Further, described connecting rod is crank connecting link, and it is shaped as V-type, and an end is porose.
Further, described warning device comprises limit switch and combined aural and visual alarm; Described limit switch is connected with described cable car pulley rail; Described limit switch is connected with described combined aural and visual alarm.
Further, described combined aural and visual alarm comprises warning indicator lamp and alarm buzzer.
The cable pulley of crane safety device that the utility model provides, after the weight-lifting equipment cable coaster comes off, can fall on stay cord, avoided the directly born damage that causes of cable coaster and cable, and can reach alarm, the operator is in time pinpointed the problems and go to deal with problems.
Description of drawings
The structural representation of the cable pulley of crane safety device that Fig. 1 provides for the utility model embodiment;
Working state schematic representation when the cable pulley of crane safety device that Fig. 2 provides for the utility model embodiment does not come off;
Cable pulley of crane safety device working state schematic representation when coming off that Fig. 3 provides for this experiment new embodiment;
The safety device electrical equipment principle schematic that Fig. 4 provides for the utility model embodiment.
The specific embodiment
Referring to Fig. 1-4, a kind of cable pulley of crane safety device that the utility model embodiment provides, it comprises stay cord 2, linkage, warning device and position stop 9.Wherein, linkage comprises connecting rod 3, pivot pin and connecting rod base 7.Connecting rod 3 is crank connecting links, and it is shaped as V-type, and an end is porose; Connecting rod base 7 links to each other with the track of cable coaster; Pivot pin is connected to connecting rod 3 on the connecting rod base 7.Position stop 9 is welded on the cable car pulley rail 5, plays restriction stay cord and the effect of connecting rod stroke.Stay cord 2 one ends are fixed on the cable coaster track support 6, and the other end is fixed on the connecting rod 3 by hole 11 after by the cable coaster intermediate gaps all cable coasters being connected, and it is normally mobile that stay cord 2 does not affect cable coaster.Warning device comprises limit switch 4 and combined aural and visual alarm.Combined aural and visual alarm comprises warning indicator lamp HL and alarm buzzer HA.Limit switch 4 links to each other with warning indicator lamp HL with alarm buzzer HA by signal wire (SW) 13.
This cable pulley of crane safety device also comprises torque spring 10, and this torque spring 10 is fixed on the pivot pin 8, plays to connecting rod 3 and 2 one pulling force effects of stay cord, thereby guarantees that the cable pulley of crane safety device is under diagram 2 normal workings.
When cable coaster comes off from pulley rail, as shown in Figure 3, cable coaster falls under gravity on the stay cord, the resistance that stay cord pulling connecting rod 3 overcomes torque spring 10 rotates with grades 12 of limit switch connecting rod 3 and contacts, limit switch 4 closures (K1 is closed), circuit turn-on, warning indicator lamp HL flicker, simultaneously alarm buzzer HA warning (Fig. 4).After receiving alarm message, the driver is with ramp to stop, avoid cable to be broken, cable coaster will directly fall on stay cord 2, avoided the directly born damage that causes of cable coaster and cable, also greatly reduce the cable maintenance amount simultaneously, shortened the handling failure time, reduced the spare part expense, improved the hoisting crane effective operation time.
The cable pulley of crane safety device that the utility model provides, because stay cord 2 passes from the cable coaster intermediate gap, after cable coaster comes off from track, to directly fall on stay cord 2, avoided the directly born damage that causes of cable coaster and cable, also greatly reduce the cable maintenance amount simultaneously, shortened the handling failure time, reduced the spare part expense, improved the hoisting crane effective operation time.。
It should be noted last that, the above specific embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to example the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. a cable pulley of crane safety device is characterized in that, comprising:
Stay cord, linkage, warning device and position stop;
Described stay cord one end links to each other with described linkage, and the other end links to each other with cable car pulley rail support;
Described linkage, warning device and position stop are connected with the cable car pulley rail respectively.
2. cable pulley of crane safety device according to claim 1 is characterized in that, described linkage comprises:
Connecting rod, pivot pin and connecting rod base;
Described connecting rod base links to each other with described cable coaster track;
Described pivot pin is connected to described connecting rod on the described connecting rod base.
3. cable pulley of crane safety device according to claim 2 is characterized in that, also comprises:
Torque spring, described torque spring is fixed on described pivot pin.
4. cable pulley of crane safety device according to claim 2 is characterized in that:
Described connecting rod is crank connecting link, and it is shaped as V-type, and an end is porose.
5. cable pulley of crane safety device according to claim 1 is characterized in that, described warning device comprises:
Limit switch and combined aural and visual alarm;
Described limit switch is connected with described cable car pulley rail;
Described limit switch is connected with described combined aural and visual alarm.
6. cable pulley of crane safety device according to claim 5 is characterized in that, described combined aural and visual alarm comprises warning indicator lamp and alarm buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527854 CN202808198U (en) | 2012-10-15 | 2012-10-15 | Safety device for cable pulley of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527854 CN202808198U (en) | 2012-10-15 | 2012-10-15 | Safety device for cable pulley of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808198U true CN202808198U (en) | 2013-03-20 |
Family
ID=47867119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220527854 Expired - Fee Related CN202808198U (en) | 2012-10-15 | 2012-10-15 | Safety device for cable pulley of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106395666A (en) * | 2016-09-30 | 2017-02-15 | 武汉船用机械有限责任公司 | Test system of maritime replenishing device |
| CN106564563A (en) * | 2016-10-19 | 2017-04-19 | 武汉船用机械有限责任公司 | Test device of marine comprehensive supply system |
-
2012
- 2012-10-15 CN CN 201220527854 patent/CN202808198U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106395666A (en) * | 2016-09-30 | 2017-02-15 | 武汉船用机械有限责任公司 | Test system of maritime replenishing device |
| CN106564563A (en) * | 2016-10-19 | 2017-04-19 | 武汉船用机械有限责任公司 | Test device of marine comprehensive supply system |
| CN106564563B (en) * | 2016-10-19 | 2019-01-04 | 武汉船用机械有限责任公司 | A kind of experimental rig of marine comprehensive make-up system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20171015 |