CN201553517U - Rope-loosening protective circuit and system circuit - Google Patents
Rope-loosening protective circuit and system circuit Download PDFInfo
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- CN201553517U CN201553517U CN2009201793344U CN200920179334U CN201553517U CN 201553517 U CN201553517 U CN 201553517U CN 2009201793344 U CN2009201793344 U CN 2009201793344U CN 200920179334 U CN200920179334 U CN 200920179334U CN 201553517 U CN201553517 U CN 201553517U
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- slack
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Abstract
The utility model provides a rope-loosening protective circuit and a system circuit, and belongs to the industrial safety field. The rope-loosening protective circuit comprises a rope channel micromotion switch in series connection with a coil loop of a first relay, a first normally-open contact and a first dynamic contact connected with a system safety return circuit in series, also a first normally-closed contact of the first relay and a rope-loosening indicator in series connection with the first normally-closed contact; the first normally-closed contact and the rope-loosening indicator are connected with the rope channel micromotion switch in parallel, when the rope channel micromotion switch is disconnected, the first normally-closed contact is triggered to be closed and connect with the first dynamic contact so as to trigger the rope loosening indictor to alarm. In the utility model, the rope channel micromotion switch is connected with the first relay in series, when the steel rope has loosening fault, the system safety loop is triggered to be disconnected and the rope loosening indicator is triggered to alarm at the same time, meanwhile the rope loosening indicator alarms to accurately locate the fault of the disconnected system safety loop, thereby reducing the fault location time.
Description
Technical field
The utility model relates to the industrial safety field, relates in particular to a kind of rope creep protection circuit and circuit system of cylindrical drum hoist.
Background technology
The a large amount of cylindrical drum hoists that use of pit mining, a fixing end of steel rope on the cylinder of cylindrical drum hoist, the head sheave that the other end of steel rope is walked around on the derrick hangs lifting container.Utilize cylinder rotation direction difference, steel rope is wrapped with or unclasps, to finish the work that promotes or transfer lifting container.Bracing frame between head sheave and the cylinder is provided with iron wire, and iron wire connects rope race micro-switch, rope race micro-switch cascade system safety return circuit.Steel rope normally promotes or when transferring lifting container, and the steel rope in tension connects the rope race micro-switch closure of iron wire, security of system circuit closed.Steel rope slack rope fault often takes place during the gig operation, causes that the security of system loop disconnects, and can't guarantee the winch device security normal operation of connected system safety return circuit.When steel rope slack rope fault takes place, a bit of displacement takes place in the steel rope by gravity, triggers the rope race micro-switch by iron wire and disconnects rope race micro-switch cascade system safety return circuit, thereby the security of system loop also disconnects, and security of system loop break trigger hoist house operator's station is reported to the police.The security of system loop connects a plurality of hardware access points simultaneously, and as operator's station access point, sudden stop access point and signal system access point etc., when arbitrary hardware access point disconnected, the security of system loop all disconnected, and all can trigger the hoist house operator's station and report to the police.
Cylindrical drum hoist steel rope generation slack rope, when the triggering system safety return circuit disconnects and the hoist house operator's station is reported to the police, accurate fault location, each hardware access point that can only short circuit security of system loop, trouble-shooting point one by one, prolong the time of fault location, influenced the safe and efficient running of winch.
The utility model content
The utility model embodiment provides a kind of rope creep protection circuit and circuit system, during in order to solution prior art steel rope generation slack rope, need search the technological deficiency that fault positions one by one, realizes the quick location of fault.
The utility model embodiment provides a kind of rope creep protection circuit, comprising:
The rope race micro-switch, described rope race micro-switch is connected with the wire loop of first relay;
Be connected on first open contact and first moving contact of first relay in the security of system loop, described first relay is when described rope race micro-switch is closed, trigger described first moving contact of the closed connection of described first open contact, and when described rope race micro-switch disconnects, trigger described first open contact and described first moving contact and disconnect;
First normally closed contact and the series connected slack rope indicating device of described first normally closed contact that also comprise described first relay, described first normally closed contact and described slack rope indicating device are in parallel with described rope race micro-switch, described first relay is when described rope race micro-switch is closed, triggering described first normally closed contact and described first moving contact disconnects, and when described rope race micro-switch disconnects, trigger described first normally closed contact closure and connect described first moving contact and cause described slack rope indicating device warning.
The utility model embodiment provides a kind of circuit system, comprises security of system loop and the rope creep protection circuit loop-coupled, above-mentioned with described security of system.
Rope creep protection circuit and the system circuit of the utility model embodiment, wire loop by first relay of connecting with the rope race micro-switch, first open contact of first relay and first moving contact are connected in the security of system loop, first normally closed contact series connection slack rope indicating device of first relay; If cylindrical drum hoist steel rope generation slack rope fault, the rope race micro-switch disconnects, and triggers first open contact and first moving contact and disconnects, and the security of system loop disconnects; Described rope race micro-switch disconnects, and triggers first normally closed contact closure and connects first moving contact and cause the warning of slack rope indicating device.Cylindrical drum hoist steel rope generation slack rope causes the warning of slack rope indicating device, and accurately fault location shortens the time of fault location, thereby is convenient to row's barrier fast, the safe handling efficient of raising winch.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the utility model rope creep protection circuit embodiments one structural representation;
Fig. 2 is the utility model rope creep protection circuit embodiments two structural representations;
Fig. 3 is the utility model rope creep protection circuit embodiments three structural representations;
Fig. 4 is the utility model circuit system example structure scheme drawing.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment is with rope race micro-switch series connection external source, and setting and series connected first relay of rope race micro-switch, first open contact of first relay is connected in the security of system loop, first normally closed contact series connection slack rope indicating device of first relay; By the annexation of first relay and first open contact and first normally closed contact is set, when realizing that the rope race micro-switch disconnects, the slack rope indicating device is reported to the police, and the rope race micro-switch is communicated with or when disconnecting, the control system safety return circuit is communicated with or disconnects.
Fig. 1 is the utility model rope creep protection circuit embodiments one structural representation, as shown in Figure 1, the rope creep protection circuit comprises rope race micro-switch 101, rope race micro-switch 101 external source of connecting with the wire loop of first relay 102, and described external source is the 220v alternating current; Be connected on first open contact 103 and first moving contact of first relay 102 in the security of system loop, first relay 102 gets when rope race micro-switch 101 closures, trigger the described moving contact of first open contact, 103 closed connections, and when rope race micro-switch 101 disconnects dead electricity, trigger first open contact 103 and disconnect with moving contact;
First normally closed contact 104 and first normally closed contact, the 104 series connected slack rope indicating devices 105 that also comprise first relay 102, first normally closed contact 104 and slack rope indicating device 105 are in parallel with rope race micro-switch 101, first relay 102 gets when rope race micro-switch 101 closures, triggering first normally closed contact 104 disconnects with described first moving contact, and when described rope race micro-switch disconnects dead electricity, trigger that first normally closed contact 104 is closed to be connected described first moving contacts and cause slack rope indicating device 105 and report to the police.
The rope race micro-switch external source of connecting with the wire loop of first relay, first open contact of first relay and the first moving contact cascade system safety return circuit, first normally closed contact series connection slack rope indicating device of first relay.During the steel rope normal operation, rope race micro-switch closure, first relay that connects the rope race micro-switch gets, trigger the closed connected system safety return circuit of first open contact, security of system loop normal operation, trigger first normally closed contact and disconnect connection slack rope indicating device, the slack rope indicating device does not have electric current to pass through.During steel rope generation slack rope fault, the rope race micro-switch disconnects, and triggers first relay electric-loss, and first open contact disconnects, and the security of system loop disconnects, and triggers the first normally closed contact closure, and the slack rope indicating device is reported to the police.
Bracing frame between winding steel wire rope drum and the head sheave is provided with an iron wire, this iron wire connects rope race micro-switch 101, steel rope normally promotes or when transferring lifting container, the steel rope in tension, rope race micro-switch 101 closures that connect this iron wire, first relay 102 of connection rope race micro-switch gets electric, triggers first open contact, 103 closed first moving contacts, the security of system circuit closeds of connecting.
During steel rope generation slack rope fault, a bit of displacement takes place in the steel rope by gravity, and steel rope triggers iron wire and is subjected to displacement, and triggers the rope race micro-switch by iron wire and disconnects; When the rope race micro-switch disconnects, connect first relay electric-loss of rope race micro-switch, trigger first open contact and first moving contact and disconnect, trigger closed first moving contact that connects of first normally closed contact.Described first open contact and first moving contact disconnect, and the series connected security of system of described first open contact loop disconnects, and trigger the hoist house operator's station and report to the police; Closed first moving contact that connects of described first normally closed contact causes the series connected slack rope indicating device warning of first normally closed contact.Present embodiment triggers the slack rope indicating device and reports to the police when the steel rope slack rope, can be to the accurate fault location in open circuited security of system loop, thus shorten time of fault location, improve the safe and efficient running efficiency of winch.Overall height is imitated running efficiency.
Fig. 2 is the utility model rope creep protection circuit embodiments two structural representations, as shown in Figure 2, slack rope indicating device 105 comprises slack rope indicator lamp 202 and slack rope warning device 201 in parallel, described rope creep protection circuit also comprises second relay 203, slack rope warning device 201 is connected with second open contact 204 of second relay 203, and first normally closed contact 104 is connected with the wire loop of second relay 203; Second relay 203 is when first moving contact of first normally closed contact, 104 closed connection first relays 102, trigger second open contact, 204 closed second moving contacts that connect second relay 203, and when reaching predetermined warning duration, second moving contact that triggers second open contact 204 and second relay 203 disconnects.
By second relay is set, can control the warning duration of warning device, as presetting second relay time-delay 30s.Steel rope generation slack rope fault, when the rope race micro-switch disconnects, first relay electric-loss that connects the rope race micro-switch, first open contact of first relay and first moving contact of first relay disconnect, trigger the series connected security of system of described first open contact loop and disconnect, trigger the hoist house operator's station and report to the police; Closed first moving contact that connects of first normally closed contact, second relay that connects first normally closed contact gets, trigger closed second moving contact that connects second relay of second open contact of second relay, the slack rope warning device of second open contact of second relay of connecting is reported to the police, arrive the delay time 30s of the second default relay, second relay electric-loss, second open contact of second relay and second moving contact of second relay disconnect, and the slack rope warning device of second open contact of second relay of connecting stops to report to the police.In the rope creep protection circuit, the slack rope pilot lamp loop still is communicated with, and when the rope race micro-switch disconnected, the slack rope indicator lamp was communicated with shinny always.It is steel rope generation slack rope fault, when the rope race micro-switch disconnects, first normally closed contact that triggers first relay is closed to be connected first moving contact of first relay and causes described slack rope indicator lamp and be communicated with shinny, the slack rope warning device is reported to the police, second relay electric-loss behind the 30s triggers described slack rope warning device and stops to report to the police.That is to say steel rope generation slack rope fault, when the rope race micro-switch disconnected, described slack rope indicator lamp was communicated with shinny always, stopped behind the warning device warning 30s reporting to the police.
On the basis of the foregoing description, those skilled in the art can not carry out creative work, know that described slack rope indicating device can comprise the slack rope indicator lamp; Perhaps, comprise series connected slack rope indicator lamp and slack rope fault, the rope race micro-switch disconnects, first relay electric-loss that connects the rope race micro-switch, first open contact of first relay and first moving contact of first relay disconnect, the series connected security of system of first open contact loop of triggering described first relay disconnects, and triggers the hoist house operator's station and reports to the police; First moving contact of first relay of the closed connection of first normally closed contact of first relay simultaneously, cause that the slack rope indicator lamp is communicated with shinny warning, when perhaps the indicator lamp connection is shinny, the slack rope warning device of series connection slack rope indicator lamp is reported to the police, when perhaps the indicator lamp connection was shinny, the slack rope warning device of slack rope indicator lamp in parallel was reported to the police.
On the basis of the foregoing description, described rope creep protection circuit also comprises a mask switch 205, and mask switch 205 1 ends connect first open contact 103 of first relay 102, and the other end connects first moving contact of first relay 102.More can often trigger steel rope generation slack rope during change steel rope, for avoiding disconnecting cisco unity malfunction because of slack rope causes the security of system loop, can be when change steel rope more, manual closing mask switch 205, security of system circuit communication normal operation; After finishing the replacing of steel rope, manually disconnect mask switch 205, by first relay electric or dead electricity, trigger first open contact be connected the security of system loop and be connected with first moving contact closure of described first relay or disconnect security of system loop normal operation or disconnection.Present embodiment can be realized the normal operation in security of system loop when more change steel rope causes slack rope.
Further, on the basis of the foregoing description, described rope creep protection circuit also comprise one the shielding indicator lamp 206 connect with mask switch 205.More during change steel rope, manual closing mask switch 205, triggering the shielding indicator lamp 206 that connects this mask switch is communicated with shinny, the security of system loop is in connected state, be connected other hardware access point normal operation in the security of system loop, thereby can realize shielding indicator lamp and indicate the more state of change steel rope, and security of system loop normal operation during change steel rope more.
Further again, on the basis of the various embodiments described above, rope race micro-switch 101 comprises series connected rope race micro-switch 207 and the following rope race micro-switch 208 gone up.The steel rope that the steel rope of winding cylinder plays main castering action is last rope race steel rope, and the steel rope that plays secondary castering action is following rope race steel rope.Be provided with bracing frame between the cylinder of lay winding wire ropes and the head sheave, bracing frame is used to support rope race steel rope and following rope race steel rope, bracing frame supports upward, and rope race steel rope place is provided with rope race micro-switch 207, rope race steel rope place is provided with down rope race micro-switch 208 under supporting, and last rope race micro-switch 207 is connected with following rope race micro-switch 208.During steel rope generation slack rope fault, may trigger rope race micro-switch 207 disconnects, also may trigger down rope race micro-switch 208 disconnects, last rope race micro-switch 207 disconnects or rope race micro-switch 208 disconnections down, all can trigger first relay, 102 dead electricity, first open contact 103 of first relay and first moving contact disconnect, and the security of system loop disconnects, first normally closed contact, 104 closed first moving contacts that connect of first relay, slack rope indicating device 105 is reported to the police.
Fig. 3 is the utility model rope creep protection circuit embodiments three structural representations; as shown in Figure 3; the rope creep protection circuit comprises the rope race micro-switch; the connect wire loop of first relay of described rope race micro-switch; described rope race micro-switch comprises series connected rope race micro-switch and the following rope race micro-switch gone up; the first open contact connected system safety return circuit of first relay; first normally closed contact of first relay connects the slack rope indicator lamp in the slack rope indicating device; the slack rope warning device that also comprises second relay and slack rope indicator lamp in parallel, described slack rope warning device is connected with second open contact of second relay.
During the steel rope normal operation, last rope race micro-switch and following rope race micro-switch closure, first relay gets, trigger the closed connected system safety return circuit of first open contact of first relay, security of system loop normal operation, first normally closed contact that triggers first relay disconnects, and device does not have electric current to pass through in slack rope indicator lamp and the slack rope warning device; During steel rope generation slack rope fault, last rope race micro-switch and/or rope race micro-switch disconnection down, first relay electric-loss, first open contact that triggers first relay disconnects, the security of system loop disconnects, trigger the first normally closed contact closure of first relay, slack rope indicator lamp and slack rope warning device are reported to the police, and second relay is a slug relay, the warning duration of control slack rope warning device, after time-delay a period of time was set, the slack rope warning device stopped to report to the police, and the slack rope indicator lamp still is communicated with warning.
Fig. 4 is the utility model circuit system example structure scheme drawing, as shown in Figure 4, the circuit system that present embodiment provides comprise security of system loop 301 and with security of system loop 301 bonded assemblys, the described rope creep protection circuit 302 of the foregoing description.Rope creep protection circuit 302 comprises rope race micro-switch 101; with series connected first relay of rope race micro-switch 102 wire loops; be connected on first open contact 103 and first moving contact of first relay 102 in the security of system loop 301; first open contact 103 and first moving contact of first relay 102 in first relay 102, first normally closed contact, the 104 series connection slack rope indicating devices 105 of first relay 102.During steel rope generation slack rope fault, the rope race micro-switch disconnects, first relay electric-loss, and first open contact of first relay and first moving contact of first relay disconnect, and the security of system loop disconnects; Closed first moving contact that connects first relay of first normally closed contact of first relay causes the warning of slack rope indicating device.This circuit system can trigger the slack rope indicating device of described rope creep protection circuit and report to the police when steel rope generation slack rope fault, accurate fault location, and the time of shortening fault location, the assurance circuit system is worked fast.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (8)
1. a rope creep protection circuit is characterized in that, comprising:
The rope race micro-switch, described rope race micro-switch is connected with the wire loop of first relay;
Be connected on first open contact and first moving contact of first relay in the security of system loop, described first relay is when described rope race micro-switch is closed, trigger described first moving contact of the closed connection of described first open contact, and when described rope race micro-switch disconnects, trigger described first open contact and described first moving contact and disconnect;
First normally closed contact and the series connected slack rope indicating device of described first normally closed contact that also comprise described first relay, described first normally closed contact and described slack rope indicating device are in parallel with described rope race micro-switch, described first relay is when described rope race micro-switch is closed, triggering described first normally closed contact and described first moving contact disconnects, and when described rope race micro-switch disconnects, trigger described first normally closed contact closure and connect described first moving contact and cause described slack rope indicating device warning.
2. according to claim or 1 described rope creep protection circuit, it is characterized in that described slack rope indicating device comprises the slack rope indicator lamp; Perhaps, comprise series connected slack rope indicator lamp and slack rope warning device; Perhaps, comprise slack rope indicator lamp and slack rope warning device in parallel.
3. rope creep protection circuit according to claim 1, it is characterized in that, described slack rope indicating device comprises slack rope indicator lamp and slack rope warning device in parallel, described rope creep protection circuit also comprises second relay, described slack rope warning device is connected with second open contact of described second relay, and described first normally closed contact is connected with the wire loop of described second relay; Described second relay is in that described first normally closed contact is closed when connecting described first moving contact, trigger closed second moving contact that connects described second relay of described second open contact, and when reaching predetermined warning duration, trigger described second open contact and described second moving contact and disconnect.
4. according to claim 1 or 2 or 3 described rope creep protection circuit, it is characterized in that also comprise a mask switch, described mask switch one end connects described first open contact, the other end connects described first moving contact.
5. rope creep protection circuit according to claim 4 is characterized in that, also comprise one the shielding indicator lamp connect with described mask switch.
6. according to claim 1 or 2 or 3 or 5 described rope creep protection circuit, it is characterized in that described rope race micro-switch comprises series connected rope race micro-switch and the following rope race micro-switch gone up.
7. rope creep protection circuit according to claim 4 is characterized in that, described rope race micro-switch comprises series connected rope race micro-switch and the following rope race micro-switch gone up.
8. a circuit system is characterized in that, comprise the security of system loop and loop-coupled with described security of system, as the arbitrary described rope creep protection circuit of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201793344U CN201553517U (en) | 2009-10-26 | 2009-10-26 | Rope-loosening protective circuit and system circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201793344U CN201553517U (en) | 2009-10-26 | 2009-10-26 | Rope-loosening protective circuit and system circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201553517U true CN201553517U (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201793344U Expired - Fee Related CN201553517U (en) | 2009-10-26 | 2009-10-26 | Rope-loosening protective circuit and system circuit |
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| Country | Link |
|---|---|
| CN (1) | CN201553517U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107348833A (en) * | 2017-08-08 | 2017-11-17 | 广东美想电器有限公司 | A kind of electric cooker |
| CN107536451A (en) * | 2017-08-08 | 2018-01-05 | 广东美想电器有限公司 | Installation position adjustable support foot formula electric cooker |
-
2009
- 2009-10-26 CN CN2009201793344U patent/CN201553517U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107348833A (en) * | 2017-08-08 | 2017-11-17 | 广东美想电器有限公司 | A kind of electric cooker |
| CN107536451A (en) * | 2017-08-08 | 2018-01-05 | 广东美想电器有限公司 | Installation position adjustable support foot formula electric cooker |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20100818 Termination date: 20131026 |