CN203529842U - Electric hoist - Google Patents
Electric hoist Download PDFInfo
- Publication number
- CN203529842U CN203529842U CN201320634296.3U CN201320634296U CN203529842U CN 203529842 U CN203529842 U CN 203529842U CN 201320634296 U CN201320634296 U CN 201320634296U CN 203529842 U CN203529842 U CN 203529842U
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- CN
- China
- Prior art keywords
- auxiliary
- repeater relay
- approach switch
- relay
- position approach
- 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 electric hoist. A duplex air switch is connected with an ascending limit position proximity switch and a descending limit position proximity switch, the ascending limit position proximity switch is connected with a first relay, the descending limit position proximity switch is connected with a second relay, a first auxiliary open point of the first relay and a first auxiliary open point of the second relay are connected with an alarm lamp and a horn respectively, an ascending button in an operating handle is sequentially connected with the auxiliary close point of the first relay, the auxiliary close point of a descending contactor and a coil of an ascending contactor in series through a wiring terminal to form a series loop, and a descending button in the operating handle is sequentially connected with the auxiliary close point of the second relay, the auxiliary close point of the ascending contactor and a coil of the descending contactor in series through the wiring terminal to form a series loop. The electric hoist is high in stability, limiting protection can be easily achieved, security and work efficiency in practical application are improved, and debugging and maintenance time is shortened.
Description
Technical field
The utility model relates to electric block, relates in particular to a kind of electric block of exempting circuit fire stop.
Background technology
Circuit fire stop is very important component part on electric block, and it is the bridge that connects control box and motor.Electric block is in rising, falling-threshold position, and circuit fire stop moves, and motor is out of service, plays the effect of position limitation protection.Along with the generally application of industry spot electric block, circuit fire stop has also demonstrated the drawback of self.The action principle of circuit fire stop is, motor, in end position, advances, pulls out the push rod of circuit fire stop by the connecting rod on rope guide, and circuit fire stop directly excises wherein two phase lines in motor lines, and motor dead electricity stops action.
During practical application, although a lot of people understands the operating principle of circuit fire stop, in wiring and debugging cucurbit, be not very clear.In addition, in use, circuit fire stop often damages electric block, due to frequent action, and the mechanical mechanism badly broken of the inside, motor can not normally move, and can only again change circuit fire stop, very inconvenient.
Utility model content
The utility model provides a kind of electric block, and this electric block has been exempted circuit fire stop, has reduced the probability that electric block fault occurs, and increases work efficiency, and shortens the debugging maintenance time, described below:
A kind of electric block, comprise: exchange 380 power lines, 220V control loop and operating handle, in described alternating current 220V control loop, connecting duplex sky opens, described duplex sky is opened and is connected respectively rising limit position approach switch, falling-threshold position approach switch, described rising limit position approach switch connects the first repeater relay, described falling-threshold position approach switch connects the second repeater relay, the first auxiliary battle of described the first repeater relay, connect respectively alarm lamp the first auxiliary battle of described the second repeater relay, described alarm lamp connects loudspeaker, described loudspeaker are assisted and are made war with second of described the first repeater relay respectively, the second auxiliary battle of described the second repeater relay connects,
Rising button in described operating handle is connected in series successively the auxiliary close point of described the first repeater relay by connection terminal, the coil of the auxiliary close point of decline contactless switch, contactless for hoisting forms a series loop;
Decline button in described operating handle is connected in series successively the auxiliary close point of described the second repeater relay by connection terminal, the coil of the auxiliary close point of contactless for hoisting, decline contactless switch forms a series loop.
Described electric block comprises: rotating cylinder, described rising limit position approach switch, described falling-threshold position approach switch are installed at the spacing place of high-low limit of described rotating cylinder.
The beneficial effect of the technical scheme that the utility model provides is: this electric block has been removed circuit fire stop; rise and fall motor lines is Access Control case directly; by fixedly rising limit position approach switch, falling-threshold position approach switch on electric gourd drum shell; when rise and fall motor runs to end position; the approach switch action of limit position; rise and fall motor stops, and realizes position limitation protection function.Because the iron catch of limit position approach switch and induction is contactless action, therefore, can well protect limit position approach switch, almost do not worry the damage of limit position approach switch.This electric block stability is high, is easy to realize position limitation protection, has improved safety and the work efficiency in practical application, and has shortened the debugging maintenance time.
Accompanying drawing explanation
The schematic circuit diagram of a kind of electric block that Fig. 1 provides for the utility model;
The scheme of installation of the limit position approach switch that Fig. 2 provides for the utility model.
In accompanying drawing, the list of parts of each label representative is as follows:
1: duplex sky is opened; 2: rising limit position approach switch;
3: falling-threshold position approach switch; 4: alarm lamp;
5: loudspeaker; 6: operating handle;
7: connection terminal; 8: decline contactless switch;
9: contactless for hoisting; 10: right lateral contactless switch;
11: left lateral contactless switch; 12: control transformer;
13: rotating cylinder; 14: push-and-pull connecting rod;
15: iron catch; 16: rise and fall motor;
17: movable motor; 61: start button;
62: stop button; 63: rising button;
64: decline button; 65: left lateral button;
66: right lateral button; KA1: the first repeater relay;
KA2: the second repeater relay; QS: switch;
N: zero line; L1, L2 and L3: live wire;
KA1 ': the first auxiliary battle of the first repeater relay;
KA2 ': the first auxiliary battle of the second repeater relay;
KA1 ": the second auxiliary battle of the first repeater relay;
KA2 ": the second auxiliary battle of the second repeater relay;
KA1 " ': the auxiliary close point of the first repeater relay KA1;
KA2 " ': the auxiliary close point of the second repeater relay KA2.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below the utility model embodiment is described in further detail.
The probability occurring in order to reduce electric block fault, increase work efficiency, shorten the debugging maintenance time, the utility model embodiment provides a kind of electric block, referring to Fig. 1, comprise: in the control loop of interchange 220, connect duplex sky and open 1, duplex sky is opened 1 and is connected respectively rising limit position approach switch 2, falling-threshold position approach switch 3, rising limit position approach switch 2 connects the first repeater relay KA1, falling-threshold position approach switch 3 connects the second repeater relay KA2, first of the first repeater relay KA1 assists KA1 ' battle, the second repeater relay KA2 first auxiliary battle KA2 ' connect respectively alarm lamp 4, alarm lamp 4 connects loudspeaker 5, loudspeaker 5 are assisted KA1 battle with second of the first repeater relay KA1 respectively ", second of the second repeater relay KA2 assists KA2 battle " connect, rising button 63 in operating handle 6 is connected in series the auxiliary close point KA1 of the first repeater relay KA1 successively by connection terminal 7 " ', the auxiliary close point of decline contactless switch 8 is, the coil of contactless for hoisting 9 forms a series loop (control transformer 12 36V power supply is provided for coil), decline button 64 in operating handle 6 is connected in series the auxiliary close point KA2 of the second repeater relay KA2 successively by connection terminal 7 " ', the auxiliary close point of contactless for hoisting 9 is, the coil of decline contactless switch 8 forms a series loop (control transformer 12 36V power supply is provided for coil).
During specific implementation, referring to Fig. 2, at the spacing place of high-low limit of the rotating cylinder 13 of electric block, above-mentioned rising limit position approach switch 2 and falling-threshold position approach switch 3 are installed respectively.
This electric block is compared with the electric block that contains circuit fire stop in prior art, the function that open 1 by increase duplex sky in exchanging 220 control loop, rising limit position approach switch 2, falling-threshold position approach switch 3, the first repeater relay KA1, the second repeater relay KA2 has been realized circuit fire stop, and realized the warning when breaking down by alarm lamp 4 and loudspeaker 5, prompting staff keeps in repair timely, has met the multiple needs in practical application.
The principle of work of this electric block of the following detailed description and operating process, described below:
(1) to electric block, serve main power source and exchange 380V, above-mentioned subsidiary control loop newly-increased in control box obtains electric;
(2) start button 61 in push handle 6, electric block is in readiness.
(3) according to field operation needs, press successively rising button 63, decline button 64, left lateral button 65 and right lateral button 66, realize the upper and lower of rise and fall motor 16, and the walking of the left and right of movable motor 17, position limitation protection is realized automatically, without operation bidirectional.
Circuit fire stop is removed in this design, and application rising limit position approach switch 2, falling-threshold position approach switch 3 are spacing as the limit.When electric block is when normally moving, the iron catch 15 on push-and-pull connecting rod 14 also can move, and when electric block runs to end position, iron catch 15 is near rising limit position approach switch 2 or falling-threshold position approach switch 3.Rising limit position approach switch 2 or the 3 induction actions of falling-threshold position approach switch; cause the first repeater relay KA1 in newly-increased control loop or the action of the second repeater relay KA2; the first repeater relay KA1 or the auxiliary spacing close point of the second repeater relay KA2 string in the electronic control loop of operating handle 6 will disconnect; contactless for hoisting 8 or decline contactless switch 9 are replied dead electricity; rise and fall motor 16 is out of service, has reached the effect of position limitation protection.In addition, in control loop, by having increased alarm lamp 4, provide spacing deixis, by increasing loudspeaker 5, provide warning function, remind site operation personnel, electric block is in end position, and operation electric block is careful.
The utility model embodiment to the model of each device except do specified otherwise, the model of other devices does not limit, as long as can complete the device of above-mentioned functions, all can.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. an electric block, comprising: exchanges 380 power lines, 220V control loop and operating handle, it is characterized in that, in described interchange 220 control loops, connect duplex sky and open,
Described duplex sky is opened and is connected respectively rising limit position approach switch, falling-threshold position approach switch, described rising limit position approach switch connects the first repeater relay, described falling-threshold position approach switch connects the second repeater relay, connect respectively alarm lamp the first auxiliary battle of the first auxiliary battle of described the first repeater relay, described the second repeater relay, described alarm lamp connects loudspeaker, and described loudspeaker are connected with the second auxiliary battle of the second auxiliary battle of described the first repeater relay, described the second repeater relay respectively;
Rising button in described operating handle is connected in series successively the auxiliary close point of described the first repeater relay by connection terminal, the coil of the auxiliary close point of decline contactless switch, contactless for hoisting forms a series loop;
Decline button in described operating handle is connected in series successively the auxiliary close point of described the second repeater relay by described connection terminal, the coil of the auxiliary close point of contactless for hoisting, decline contactless switch forms a series loop.
2. electric block according to claim 1, described electric block comprises: rotating cylinder, it is characterized in that, described rising limit position approach switch, described falling-threshold position approach switch are installed at the spacing place of high-low limit of described rotating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634296.3U CN203529842U (en) | 2013-10-14 | 2013-10-14 | Electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634296.3U CN203529842U (en) | 2013-10-14 | 2013-10-14 | Electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203529842U true CN203529842U (en) | 2014-04-09 |
Family
ID=50416078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320634296.3U Expired - Fee Related CN203529842U (en) | 2013-10-14 | 2013-10-14 | Electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203529842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068509A (en) * | 2015-07-15 | 2015-11-18 | 西安航空动力股份有限公司 | Overrun protection and releasing system for numerical control machine tool |
-
2013
- 2013-10-14 CN CN201320634296.3U patent/CN203529842U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068509A (en) * | 2015-07-15 | 2015-11-18 | 西安航空动力股份有限公司 | Overrun protection and releasing system for numerical control machine tool |
| CN105068509B (en) * | 2015-07-15 | 2017-10-31 | 西安航空动力股份有限公司 | A kind of Digit Control Machine Tool overtravel protection and deactivation 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: 20140409 Termination date: 20201014 |