CN202245780U - Power supply control system for automobile crane - Google Patents
Power supply control system for automobile crane Download PDFInfo
- Publication number
- CN202245780U CN202245780U CN2011203708273U CN201120370827U CN202245780U CN 202245780 U CN202245780 U CN 202245780U CN 2011203708273 U CN2011203708273 U CN 2011203708273U CN 201120370827 U CN201120370827 U CN 201120370827U CN 202245780 U CN202245780 U CN 202245780U
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- electromagnetic switch
- intermediate relay
- control
- switch
- electromagnetic
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- Expired - Fee Related
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Abstract
The utility model discloses a power supply control system for an automobile crane. The power supply control system comprises a pressure sensor, a pressure control electromagnetic switch, an intermediate relay coil, an intermediate relay first electromagnetic switch, an intermediate relay second electromagnetic switch, a key control electromagnetic switch, a main control relay coil and a main control relay electromagnetic switch. The power supply control system has the technical effect that: an electric system is controlled, so that all loading operation under the abnormal working condition of a power takeoff is forbidden. Double safety is formed together with software control of an original software monitoring system, so that software and hardware are ensured simultaneously, and the entire automobile is safer and more reliable.
Description
Technical field
The utility model relates to a kind of car hosit electric power supply control system, relates in particular to car hosit safe power supply control system.
Background technology
Car hosit is commonly referred to as the hoisting crane of getting on the bus and partly forms by being commonly referred to as the automobile partial sum of getting off; Get on or off the bus and all be to use the storage battery and the driving engine of automobile part to be used as propulsion source; Power takeoff then is to get off to transmit the core component of power to getting on the bus, and power takeoff converts the takeoff output of driving engine into the hydraulic power of the hydraulic pressure main pump output of getting on the bus.If power takeoff work mal, then possibly causing getting on the bus, it is not enough and cause industrial accident that hydraulic pressure takes place when slinging article.And existing car hosit system only relies on software system to monitor the mode of operation of power takeoff, is prone to cause accident to take place when software is made mistakes.
Summary of the invention
In order to solve existing car hosit perfect inadequately technical matters on monitoring power takeoff mode of operation; It is a kind of from electric system monitoring power takeoff mode of operation, the safe power supply control system of the car hosit that guaranteeing forbids getting on the bus when power takeoff work mal on physical layer moves that the utility model provides.
In order to realize above-mentioned technical purpose; The technical scheme of the utility model is; A kind of car hosit electric power supply control system; Comprise pressure sensor, electromagnetic pressure control switch, intermediate relay coil, intermediate relay first electromagnetic switch, intermediate relay second electromagnetic switch, key control electromagnetic switch, overhead control relay coil, overhead control relay electromagnetic switch; Described pressure sensor is electrically connected to the electromagnetic pressure control switch, is connected to positive source after described electromagnetic pressure control switch one end and key control electromagnetic switch is parallelly connected, and the other end is connected to the intermediate relay coil; Described key control electromagnetic switch is connected to intermediate relay first electromagnetic switch; Described intermediate relay first electromagnetic switch is connected to the overhead control relay coil, and described intermediate relay coil and overhead control relay coil are connected to power cathode respectively, and described overhead control relay electromagnetic switch one end is connected to power cathode; Other end series connection intermediate relay second electromagnetic switch, described intermediate relay second electromagnetic switch is connected to positive source.
Further; Described a kind of car hosit electric power supply control system; Also comprise first fuse and second fuse; Described first fuse is arranged at positive source and controls between the electromagnetic switch with parallelly connected electromagnetic pressure control switch and key, and described second fuse is arranged between positive source and intermediate relay second electromagnetic switch.
The technique effect of the utility model is, through the control electric system, and all operations under power takeoff abnormal work situation of having forbidden getting on the bus.Form double insurance with the control of original software monitoring system on software, soft, hardware guarantees simultaneously, makes car load more safe and reliable.
Below in conjunction with accompanying drawing the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Wherein, 101 is pressure sensor, and 102 is the electromagnetic pressure control switch; 201 is the intermediate relay coil, and 202 is intermediate relay first electromagnetic switch, and 203 is intermediate relay second electromagnetic switch; 301 are the overhead control relay coil, and 302 are overhead control relay electromagnetic switch, and 401 is first fuse; 402 is second fuse, and 501 are key control electromagnetic switch.
The specific embodiment
Referring to Fig. 1, the hydraulic pressure main pump of getting on the bus connects pressure sensor 101, and pressure sensor 101 band output functions promptly satisfy when getting on the bus service conditions when pressure, and pressure switch is exported a lasting high level signal.This high level signal triggers electromagnetic pressure control switch 102 closures; Then intermediate relay coil 201 must be electric, triggers intermediate relay first electromagnetic switch 202 and intermediate relay second electromagnetic switch 203 closures, inserts key this moment; Then key is controlled electromagnetic switch 501 closures; Then overhead control relay coil 301 must be electric, triggers overhead control relay electromagnetic switch 302 closures, and the circuit of getting on the bus is connected.So during work, have only when pressure sensor 101 output high level signals, insert key simultaneously after, get on the bus and could energized carry out work.If only insert key, and the hydraulic pressure main pump insufficient pressure of getting on the bus; Or the hydraulic pressure main pump pressure of getting on the bus is normal, but when not inserting key, getting on the bus all can't energized.First fuse 401 and second fuse 402 have guaranteed the safe and reliable of entire circuit simultaneously.
The utility model does not allow to get on the bus in not power taking of power takeoff to be the main foundation of energized of getting on the bus to main pump failure-free pressure detection, carries out any operation under the not enough situation of main pump pressure.If meet emergency situation, the power taking of power takeoff Halfway Stopping, the utility model also can in time react, and stops the power supply of getting on the bus, and does not allow to continue operation again.The safety that power supply and car load use has guaranteed from the source to get on the bus; The utility model has remedied the deficiency that original limiter of moment only limits from the enterprising line operate of software; The basis for estimation of original limiter of moment is whether power takeoff works simultaneously; But the system pressure of getting on the bus is not explicitly called for, and the utility model then will be got on the bus system pressure as a necessary condition of getting on the bus and whether can close a floodgate, and make the use of getting on the bus more safe and reliable.
Claims (2)
1. car hosit electric power supply control system; It is characterized in that; Comprise pressure sensor, electromagnetic pressure control switch, intermediate relay coil, intermediate relay first electromagnetic switch, intermediate relay second electromagnetic switch, key control electromagnetic switch, overhead control relay coil and overhead control relay electromagnetic switch; Described pressure sensor is electrically connected to the electromagnetic pressure control switch; Be connected to positive source after described electromagnetic pressure control switch one end and key control electromagnetic switch is parallelly connected; The other end is connected to the intermediate relay coil, and described key control electromagnetic switch is connected to intermediate relay first electromagnetic switch, and described intermediate relay first electromagnetic switch is connected to the overhead control relay coil; Described intermediate relay coil and overhead control relay coil are connected to power cathode respectively; Described overhead control relay electromagnetic switch one end is connected to power cathode, other end series connection intermediate relay second electromagnetic switch, and described intermediate relay second electromagnetic switch is connected to positive source.
2. a kind of car hosit electric power supply control system according to claim 1; It is characterized in that; Also comprise first fuse and second fuse; Described first fuse is arranged at positive source and controls between the electromagnetic switch with parallelly connected electromagnetic pressure control switch and key, and described second fuse is arranged between positive source and intermediate relay second electromagnetic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203708273U CN202245780U (en) | 2011-09-29 | 2011-09-29 | Power supply control system for automobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203708273U CN202245780U (en) | 2011-09-29 | 2011-09-29 | Power supply control system for automobile crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202245780U true CN202245780U (en) | 2012-05-30 |
Family
ID=46107054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203708273U Expired - Fee Related CN202245780U (en) | 2011-09-29 | 2011-09-29 | Power supply control system for automobile crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202245780U (en) |
-
2011
- 2011-09-29 CN CN2011203708273U patent/CN202245780U/en not_active Expired - Fee Related
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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: 20150929 |
|
| EXPY | Termination of patent right or utility model |