CN202261690U - Wireless talkback sudden stopping and shutting device for crane - Google Patents
Wireless talkback sudden stopping and shutting device for crane Download PDFInfo
- Publication number
- CN202261690U CN202261690U CN 201120401397 CN201120401397U CN202261690U CN 202261690 U CN202261690 U CN 202261690U CN 201120401397 CN201120401397 CN 201120401397 CN 201120401397 U CN201120401397 U CN 201120401397U CN 202261690 U CN202261690 U CN 202261690U
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- circuit
- crane
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- amplifying
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Abstract
The utility model discloses a wireless talkback sudden stopping and shutting device for a crane and relates to the technical field of crane safety communication. The device consists of an emitting device and a receiving device, wherein the emitting device comprises a microphone, an amplifying circuit I connected with the microphone, an emitting circuit connected with the amplifying circuit I, a control circuit connected with the emitting circuit and a power circuit I for supplying power to the control circuit, the emitting circuit and the amplifying circuit I; the receiving device comprises a receiving circuit, a driving circuit connected with the receiving circuit, a relay KA connected with the driving circuit, an amplifying circuit II connected with the receiving circuit, a horn connected with the amplifying circuit II and a power circuit II for supplying power to the receiving circuit, the driving circuit and the amplifying circuit II; and the normal-open contact of the relay KA is connected in series to a power control loop of the crane. The wireless talkback sudden stopping and shutting device for the crane has the advantages of wireless voice transmission and clear signal, has functions of sudden stopping and shutting and is safe, sensitive and reliable.
Description
Technical field
The utility model relates to the crane safety communication technique field, specifically is that a kind of radio crane intercommunication is anxious
The locking device of closing down; Not only be suitable for hoisting equipments such as straddle truck, tower crane, also can be applied in widely on other control equipment far away such as winch, hoist engine.
Background technology
Crane (also claiming crane) is the plant equipment that is used in a kind of necessity in places such as factories and miness, station, harbour, construction site, in work is produced, plays crucial effect.But, shine into personal injury and device damage because various factors makes crane that some accidents take place repeatedly.Show that according to a statistics lifting fatal accident accounts for 11.8% of full industry industrial injury death toll, and in mining machinery plant's lifting accident, more accounts for 18% of machine factory accident.In these accidents, mainly contain the problem of three aspects, the one, human factor is like poor TV signal, mistake commander, misoperation etc.Two make apparatus factor, like the damage of crane, out of control etc.The 3rd, environmental factor, like railroad flaws, Equestrian-Jumping etc.This shows that the safety of doing lifting work well is very complicated, also is very important.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of radio crane intercommunication the anxious locking device of closing down, and can the minimizing accident take place, and ensures production safety.
The utility model is realized with following technical scheme: a kind of radio crane intercommunication, the anxious locking device of closing down; Comprise emitter and receiving system; Described emitter comprises microphone, the amplifying circuit I that is connected with microphone, the radiating circuit that is connected with the amplifying circuit I; The control circuit that is connected with radiating circuit, the power circuit I of supplying power for control circuit, radiating circuit and amplifying circuit I; Described receiving system comprises receiving circuit, the amplifying circuit II that is connected with receiving circuit, the loudspeaker that are connected with the amplifying circuit II, the power circuit II of supplying power for receiving circuit and amplifying circuit II; Receiving circuit is connected one drive circuit with the power circuit II, and drive circuit connects a relay K A; The normally opened contact of relay K A is connected on the crane power control loop.
The beneficial effect of the utility model is: wireless speech transmits, signal is clear; Have the anxious lock function of closing down, safety is sensitive reliable.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the utility model theory diagram;
Fig. 2 is a crane power control loop circuit diagram.
Embodiment
As shown in Figure 1, the anxious locking device of closing down of radio crane intercommunication is made up of emitter and receiving system.Described emitter comprises microphone, the amplifying circuit I that is connected with microphone, the radiating circuit that is connected with the amplifying circuit I, the control circuit that is connected with radiating circuit, the power circuit I of supplying power for control circuit, radiating circuit and amplifying circuit I.Described receiving system comprises receiving circuit; The drive circuit that is connected with receiving circuit, the relay K A that is connected with drive circuit, the amplifying circuit II that is connected with receiving circuit; The loudspeaker that are connected with the amplifying circuit II, the power circuit II of supplying power for receiving circuit, drive circuit and amplifying circuit II.
As shown in Figure 2, the normally opened contact of relay K A is connected on the crane power control loop.Crane should place zero-bit with all cam controller handles before preparing operation, makes zero-bit locking contact AC1-7, AC2-7; AC3-7 is closed, and the emergency switch QS4 that closes has closed hatch door and horizontal bar bar door; Make travel switch SQ7, SQ8, the normally open contact of SQ9 also is in closure state.
Emitter is installed in the housing, is carried by the knuckle man, the surface of housing is provided with power switch button, and emitter is installed in the position of the interior handled easily worker operation of the operating room of crane.
The course of work: when starting operation, power turn-on switch QS presses start button SB, and main contactor KM gets electric adhesive and self-locking, and the KM main contact is closed, makes power supply introduce each cam controller.The knuckle man opens the emitter mains switch in the hand, launches certain frequency signal, and receiving system receives signal, drive circuit
It is electric that relay K A is got, and the KA normally opened contact is closed.
Once (comprise driver's misoperation when having any emergency to take place; The crane somewhere damages suddenly, out of control; Foreign material or other staff etc. are arranged on the track), and the driver does not in time find, the knuckle man can close emitter immediately; Receiving system does not receive signal, and drive circuit makes relay electric-loss, and relay K A normally opened contact breaks off; Urgency is stopped, the power supply of locking crane, and crane is out of service; Under the situation that the knuckle man does not reset, the driver can not carry out any operation.
During relatively than long distance work, can guarantee also that through the emitter in knuckle man's hand signal is accurate knuckle man and driver, can guarantee that signal is clear, can on crane uses, play management role (personnel that only hold this device just can send signal) again; When north of china in winter, the driver can close the window operation, both can clearly receive signal, can improve work situation again in addition.
This device adopts the transceiving technology, thereby makes system sensitive reliable.Because transmitting power≤10mW can not cause interference to other equipment yet.
Claims (1)
1. the anxious locking device of closing down of a radio crane intercommunication; Comprise emitter and receiving system; Described emitter comprises microphone, the amplifying circuit I that is connected with microphone, the radiating circuit that is connected with the amplifying circuit I; The control circuit that is connected with radiating circuit, the power circuit I of supplying power for control circuit, radiating circuit and amplifying circuit I; Described receiving system comprises receiving circuit, the amplifying circuit II that is connected with receiving circuit, the loudspeaker that are connected with the amplifying circuit II, the power circuit II of supplying power for receiving circuit and amplifying circuit II; It is characterized in that: receiving circuit is connected one drive circuit with the power circuit II, and drive circuit connects a relay K A; The normally opened contact of relay K A is connected on the crane power control loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120401397 CN202261690U (en) | 2011-10-20 | 2011-10-20 | Wireless talkback sudden stopping and shutting device for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120401397 CN202261690U (en) | 2011-10-20 | 2011-10-20 | Wireless talkback sudden stopping and shutting device for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202261690U true CN202261690U (en) | 2012-05-30 |
Family
ID=46122866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120401397 Expired - Fee Related CN202261690U (en) | 2011-10-20 | 2011-10-20 | Wireless talkback sudden stopping and shutting device for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202261690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111225296A (en) * | 2019-11-21 | 2020-06-02 | 常州联力自动化科技有限公司 | Mining remote wireless communication equipment |
-
2011
- 2011-10-20 CN CN 201120401397 patent/CN202261690U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111225296A (en) * | 2019-11-21 | 2020-06-02 | 常州联力自动化科技有限公司 | Mining remote wireless communication equipment |
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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: 20120530 Termination date: 20141020 |
|
| EXPY | Termination of patent right or utility model |