CN208454313U - Diesel engine workshop driving electric control system - Google Patents

Abstract

The utility model discloses a kind of diesel engine workshop driving electric control systems, including disconnecting switch QS, electric motor protective device and traveling motor M, two-phase fuse FU2 is connected on two phase lines of disconnecting switch QS output end, universal change-over switch SA is in series with two-phase fuse FU2, protect contact FR, scram button SB3 and motor rotate forward control route, control route, which is rotated forward, with motor is parallel with motor reversal control route, motor rotates forward control route and motor rotates forward control route and is connected on the three-phase line of traveling motor M input terminal, PLC control module is also connected with universal change-over switch SA；Control route is rotated forward by motor and motor reversal controls route and realizes accurately controlling for positive and negative operation of driving a vehicle, it can choose automatic control mode and MANUAL CONTROL mode by universal change-over switch SA, automatic control mode completes the automatic running control of driving under the cooperation of PLC control module, it controls simple and convenient, can farthest guarantee the safe operation of motor and driving.

Description

Diesel engine workshop driving electric control system

Technical field

The utility model relates to workshop technical field of electric control more particularly to a kind of diesel engine workshop driving electricity Gas control system.

Background technique

Diesel engine must carry out handling with the use of driving in production assembling process, in order to root since weight is larger Diesel engine position is replaced according to different assembly technologies, mitigates the labor intensity of assembler.Driving in use, needs to be equipped with Corresponding position control system, controls traveling motor, achievees the purpose that protect motor and safe handling.Position control system Position switch in system is one of indispensable component, it be it is a kind of mechanical signal is converted into electric signal, with control The automatic control electric appliance of moving component position or stroke, and position control be exactly using on manufacturing machine moving component buting iron with Position switch collision, acts its contact, to be switched on or switched off relevant control circuit, to realize to manufacturing machine moving component The automatic control of position or stroke.There is reaction slowly, route due to its route design problem in position control system used at present On switch motion not in time the features such as, cannot the maximum safe operation for guaranteeing driving, it is therefore necessary to the control line of driving Road improves.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of controls accurately, safe diesel engine is used to produce vehicle Between with driving electric control system.

In order to solve the above technical problems, the technical solution of the utility model is: diesel engine workshop driving electric-controlled System processed, including the disconnecting switch QS being connected on three-phase power line, on the three-phase line of the disconnecting switch QS output end Be sequentially connected in series electric motor protective device and traveling motor M, on two phase lines of the disconnecting switch QS output end with the driving Motor M is parallel with two-phase fuse FU2, has been sequentially connected in series universal change-over switch SA, protection contact with the two-phase fuse FU2 FR, scram button SB3 and motor rotate forward control route, rotate forward control route with the motor and are parallel with motor reversal control line Road, the motor rotates forward control route and the motor rotates forward control route and is respectively connected to the traveling motor M input terminal On three-phase line, it is also connected with PLC control module with the universal change-over switch SA, the protection contact FR, the motor are just Turn control route and the motor rotates forward control route and is respectively connected to the PLC control module.

The electric motor protective device includes being connected on the disconnecting switch QS and the driving as a preferred technical solution, Three-phase fuse FU1 and electrothermal relay coil FR between motor M on three-phase line.

It includes that motor rotates forward start button SB1 that the motor, which rotates forward control route, as a preferred technical solution, and described Motor rotates forward start button SB1 and has been sequentially connected in series first stroke switch SQ1, reversion normally-closed contact KM2-1 and has rotated forward relay KM1, the motor rotate forward the both ends start button SB1 and are parallel with the normally opened contact KM1-A to form self-locking rotating forward relay KM1, The normally opened gearing contact KM1-B for rotating forward relay KM1 is connected on the three-phase power line of the traveling motor M.

Motor reversal control route includes motor reversal start button SB2 as a preferred technical solution, and described Motor reversal start button SB2 has been sequentially connected in series second stroke switch SQ2, has rotated forward normally-closed contact KM1-1 and reversion relay KM2, the both ends motor reversal start button SB2 are parallel with the normally opened contact KM2-A to form self-locking reversion relay KM2, The normally opened gearing contact KM2-B and the normally opened gearing contact KM1-B for rotating forward relay KM1 of the reversion relay KM2 is simultaneously Connection setting.

The protection contact FR, the scram button SB3, the motor rotate forward starting and press as a preferred technical solution, Button SB1, the first stroke switch SQ1, the motor reversal start button SB2 and second stroke switch SQ2 are connected to described The input terminal of PLC control module, the rotating forward relay KM1 and the reversion relay KM2 are connected to the PLC control module Output end.

By adopting the above-described technical solution, diesel engine workshop driving electric control system, including it is connected to three Disconnecting switch QS in phase power supply line has been sequentially connected in series electric motor protecting dress on the three-phase line of the disconnecting switch QS output end Set with traveling motor M, be parallel with two-phase fuse with the traveling motor M on two phase lines of the disconnecting switch QS output end FU2 has been sequentially connected in series universal change-over switch SA, protection contact FR, scram button SB3 and motor with the two-phase fuse FU2 Control route is rotated forward, control route is rotated forward with the motor and is parallel with motor reversal control route, the motor rotates forward control line Road and the motor rotate forward control route and are respectively connected on the three-phase line of the traveling motor M input terminal, and described omnipotent Change-over switch SA is also connected with PLC control module, and the protection contact FR, the motor are rotating forward control route and the motor just Turn control route and is respectively connected to the PLC control module；The beneficial effects of the utility model are: rotating forward control line by motor Road and motor reversal control route realize accurately controlling for positive and negative operation of driving a vehicle, and can choose automatically by universal change-over switch SA Control model and MANUAL CONTROL mode, automatic control mode complete the automatic running control of driving under the cooperation of PLC control module System, control is simple and convenient, can farthest guarantee the safe operation of motor and driving.

Detailed description of the invention

Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model It encloses.Wherein:

Fig. 1 is the manual control circuit schematic diagram of the utility model embodiment；

Fig. 2 is the Automatic Control Theory figure of the utility model embodiment PLC.

Specific embodiment

With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim Range.

As depicted in figs. 1 and 2, diesel engine workshop driving electric control system, including it is connected to three phase supply line The disconnecting switch QS of road has been sequentially connected in series electric motor protective device and driving on the three-phase line of the disconnecting switch QS output end Motor M is parallel with two-phase fuse FU2 with the traveling motor M on two phase lines of the disconnecting switch QS output end, with institute It states two-phase fuse FU2 and has been sequentially connected in series universal change-over switch SA, protection contact FR, scram button SB3 and motor rotating forward control Route rotates forward control route with the motor and is parallel with motor reversal control route, and the motor rotates forward control route and described Motor rotates forward control route and is respectively connected on the three-phase line of the traveling motor M input terminal, with the universal change-over switch SA is also connected with PLC control module, and the protection contact FR, the motor rotate forward control route and the motor rotates forward control line Road is respectively connected to the PLC control module.The universal change-over switch SA is equipped with MANUAL CONTROL mode and automatic control mode, When the switching knob of the universal change-over switch SA turns to MANUAL CONTROL mode, each button, contact and described can be passed through Motor rotates forward control route, the motor rotates forward the cooperation for controlling route, manually completes the operation control of driving；When described omnipotent It, can be by the PLC control module and the motor just when the switching knob of change-over switch SA turns to automatic control mode The cooperation for turning control route, motor rotating forward control route, completes the automatic running control of driving.

As shown in Figure 1, the electric motor protective device includes being connected between the disconnecting switch QS and the traveling motor M Three-phase fuse FU1 and electrothermal relay coil FR, the protection contact FR on three-phase line are the electrothermal relay coil FR Contact.

As shown in Figure 1, it includes that motor rotates forward start button SB1 that the embodiment of the present invention motor, which rotates forward control route, with institute Motor rotating forward start button SB1 is stated to be sequentially connected in series first stroke switch SQ1, reversion normally-closed contact KM2-1 and rotated forward relay KM1, the motor rotate forward the both ends start button SB1 and are parallel with the normally opened contact KM1-A to form self-locking rotating forward relay KM1, The normally opened gearing contact KM1-B for rotating forward relay KM1 is connected on the three-phase power line of the traveling motor M；It is described It includes motor reversal start button SB2 that motor reversal, which controls route, has been sequentially connected in series the with the motor reversal start button SB2 Two travel switch SQ2, normally-closed contact KM1-1 and reversion relay KM2 are rotated forward, the both ends motor reversal start button SB2 are simultaneously It is associated with the normally opened contact KM2-A to form self-locking reversion relay KM2, the normally opened gearing contact of the reversion relay KM2 KM2-B is arranged in parallel with the normally opened gearing contact KM1-B for rotating forward relay KM1.

When selection manually controls driving, the rotating forward operational process of the traveling motor M are as follows: press the motor rotating forward and open Dynamic button SB1, the rotating forward relay KM1 obtain electric, the rotating forward normally-closed contact KM1-1 disconnection cutting motor reversal control Route, it is described rotate forward relay KM1 normally opened contact KM1-A closed pair described in motor rotate forward start button SB1 form self-locking, institute The normally opened gearing contact KM1-B closure for rotating forward relay KM1 is stated, the traveling motor M must establish beginning rotating forward operation by cable, and driving starts It moves forward, is touched when being moved to the first stroke switch position SQ1 with it, the first stroke switch SQ1 is disconnected, institute It states and rotates forward relay KM1 power loss, the rotating forward normally-closed contact KM1-1 closure, the normally opened contact KM1- for rotating forward relay KM1 A disconnection makes self-locking releasing, and the normally opened gearing contact KM2-B of the reversion relay KM2 is disconnected, and the traveling motor M power loss is stopped It only runs, driving stops.

The reversion operational process of the traveling motor M are as follows: press the motor reversal start button SB2, the reversion after Electric appliance KM2 obtains electric, the reversion normally-closed contact KM2-1 disconnection cutting motor rotating forward control route, the reversion relay Motor reversal start button SB2 described in the normally opened contact KM2-A closed pair of KM2 formed it is self-locking, it is described reversion relay KM2 it is normal It opens and interlocks contact KM2-B closure, the traveling motor M must establish beginning reversion operation by cable, and driving starts to move backward, when being moved to It is touched when stating the second stroke switch position SQ2 with it, the second stroke switch SQ2 is disconnected, and the reversion relay KM2 loses The normally opened contact KM2-A disconnection of electricity, the reversion normally-closed contact KM2-1 closure, the reversion relay KM2 makes self-locking releasing, The normally opened gearing contact KM2-B of the reversion relay KM2 is disconnected, and the traveling motor M power loss is out of service, and driving stops.

As shown in Fig. 2, the protection contact FR, the scram button SB3, the motor rotate forward start button SB1, described First stroke switch SQ1, the motor reversal start button SB2 and second stroke switch SQ2 are connected to the PLC control module Input terminal, the rotating forward relay KM1 and reversion relay KM2 is connected to the output end of the PLC control module.Its Control process is similar to manual processes, and only obtaining signal is automatic acquisition, and driving passes through the automatic control of the PLC control module System.

The utility model rotates forward control route by motor and motor reversal controls the standard of the positive and negative operation of route realization driving Really control, can choose automatic control mode and MANUAL CONTROL mode by universal change-over switch SA, automatic control mode is in PLC Completed under the cooperation of control module driving automatic running control, control it is simple and convenient, can farthest guarantee motor and The safe operation of driving.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (5)

1. diesel engine workshop driving electric control system, including the disconnecting switch QS being connected on three-phase power line, It is characterized by: it has been sequentially connected in series electric motor protective device and traveling motor M on the three-phase line of the disconnecting switch QS output end, It is parallel with two-phase fuse FU2 with the traveling motor M on two phase lines of the disconnecting switch QS output end, with the two-phase Fuse FU2 has been sequentially connected in series universal change-over switch SA, protection contact FR, scram button SB3 and motor and has rotated forward control route, with The motor rotates forward control route and is parallel with motor reversal control route, and the motor rotates forward control route and the motor rotates forward Control route is respectively connected on the three-phase line of the traveling motor M input terminal, is also connected with the universal change-over switch SA There is PLC control module, the protection contact FR, the motor rotate forward control route and the motor rotates forward control route and connects respectively It is connected to the PLC control module.

2. diesel engine workshop as described in claim 1 driving electric control system, it is characterised in that: the motor is protected Protection unit include be connected on three-phase fuse FU1 between the disconnecting switch QS and the traveling motor M on three-phase line and Electrothermal relay coil FR.

3. diesel engine workshop as described in claim 1 driving electric control system, it is characterised in that: the motor is just Turning control route includes that motor rotates forward start button SB1, rotates forward start button SB1 with the motor and has been sequentially connected in series first stroke Switch SQ1, reversion normally-closed contact KM2-1 and rotating forward relay KM1, it is tangible that the motor rotates forward start button SB1 both ends parallel connection At the normally opened contact KM1-A of self-locking rotating forward relay KM1, the normally opened gearing contact KM1-B series connection for rotating forward relay KM1 On the three-phase power line of the traveling motor M.

4. diesel engine workshop as claimed in claim 3 driving electric control system, it is characterised in that: the motor is anti- Turning control route includes motor reversal start button SB2, has been sequentially connected in series second stroke with the motor reversal start button SB2 Switch SQ2, normally-closed contact KM1-1 and reversion relay KM2 are rotated forward, the motor reversal start button SB2 both ends parallel connection is tangible At the normally opened contact KM2-A, the normally opened gearing contact KM2-B of the reversion relay KM2 of self-locking reversion relay KM2 and institute The normally opened gearing contact KM1-B for stating rotating forward relay KM1 is arranged in parallel.

5. diesel engine workshop as claimed in claim 4 driving electric control system, it is characterised in that: the protection touching Point FR, the scram button SB3, the motor rotate forward start button SB1, the first stroke switch SQ1, the motor reversal Start button SB2 and second stroke switch SQ2 is connected to the input terminal of the PLC control module, the rotating forward relay KM1 and The reversion relay KM2 is connected to the output end of the PLC control module.