CN212012183U

CN212012183U - Automatic charging control device of transfer trolley

Info

Publication number: CN212012183U
Application number: CN202020636207.9U
Authority: CN
Inventors: 陈丽红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-11-24
Anticipated expiration: 2030-04-24

Abstract

The utility model provides an automatic charge control device of transportation dolly, including switching power supply, photoelectric switch, control switch, still have the battery charging outfit, the contact equipment charges, the control circuit charges, the battery charging outfit has the same two sets, first set of battery charging outfit is located the dead center middle part of one process before the workshop, second set battery charging outfit is located the dead center middle part of one process after the workshop, two sets of contact equipment that charge are installed respectively in the middle of the automobile body front and back both ends of transportation dolly, two sets of photoelectric switch install respectively in the lower extreme at the automobile body front and back both ends middle part of transportation dolly, control switch, the control circuit that charges is installed in the component box, and with the motor reduction gears of dolly, two sets of photoelectric switch are connected through the wire, switching power supply and two contact copper of two sets of battery. This novel can charge in front and back two stations automatically, do not need the operating personnel operation in the battery charging, need not stop production in charging, can not lead to the fact the influence to the production progress.

Description

Automatic charging control device of transfer trolley

Technical Field

The utility model relates to a supporting facility field of factory production equipment, especially an automatic charging control device of transport dolly.

Background

The transfer trolley is widely applied equipment, is mainly used for transferring parts in two working procedures before and after a manufacturer, and transfers the parts processed in the previous working procedure to the next working procedure for processing. The main structure of the transfer trolley powered by the storage battery comprises a trolley body, the storage battery, a motor speed reducing mechanism, a control system and the like. In order to facilitate production and reliable work, the running track of the wheels of the transfer trolley is fixed, namely the position of the wheels reaching the next process or returning to the previous process is fixed, the wheels are generally distributed on a small guide rail between the front process and the rear process, the trolley body runs in place between the front process and the rear process along a route set by the guide rail and then stops, or the automatic tracking positioning system on the trolley body controls the trolley body to run in place between the front process and the rear process (a direct current motor speed reducing mechanism of the transfer trolley and a motor of the direct current motor speed reducing mechanism are provided with an electromagnetic brake mechanism, the motor is powered on, the electromagnetic brake mechanism is powered on to attract a brake pad of the electromagnetic brake mechanism to brake a rotating shaft brake disc of the motor, the rotating shaft of the motor rotates normally, the electromagnetic brake mechanism is powered off to brake the brake pad of the electromagnetic brake mechanism to brake the rotating shaft brake, and then the transport dolly can stop immediately, and in current transport dolly practical application, the operating personnel of last process opened control switch after, can the automatic shutdown motion when the dolly moves next process required position).

Because the transfer trolley powered by the storage battery does not need to be connected with a power supply line through a lead, the use is more convenient, and the transfer trolley is more applied in production. The storage battery needs to be supplied with power to ensure that the storage battery has certain electric quantity, so that the normal work of the transfer trolley can be ensured; because the transfer trolley has higher power consumption, and the storage battery needs longer time (generally several hours) for charging, the existing transfer trolley charging mode is to charge the storage battery when the storage battery has insufficient capacitance, so that the transfer trolley cannot work normally in the time of charging the storage battery due to power shortage every time, and the production progress is influenced; and every charging needs the operation of an operator, and the charging wire is combined with or separated from the storage battery charging socket, so that inconvenience is brought to the operator.

Based on the above, the automatic charging control device for the transfer trolley is provided, when the transfer trolley is used, an operator is not required to perform charging management, the electric quantity is reduced to a certain extent, the automatic charging control device for the transfer trolley can automatically perform charging, and any influence on the production progress is not caused.

SUMMERY OF THE UTILITY MODEL

The transport dolly of using in order to overcome current production processes is because of the structure limits, carries out battery charging and can bring inconvenience for operating personnel to and can cause the drawback of influence to the production progress, the utility model provides a transport dolly uses, when moving between front and back twice production processes, if its inside battery power reduces to certain, can charge in front and back two stations automatically, satisfies the progress needs of charging, does not need operating personnel to operate in reaching battery charging from this, and need not stop production in charging, can not cause the automatic charge control device of a transport dolly of influence to the production progress.

The utility model provides a technical scheme that its technical problem adopted is:

an automatic charging control device of a transfer trolley comprises a switch power supply, a photoelectric switch and a control power switch, and is characterized by also comprising two sets of charging equipment, charging contact equipment and a charging control circuit, wherein the charging equipment is the same, each set of charging equipment comprises a 'L' -shaped support plate and two contact copper plates, the 'L' -shaped support plate is made of metal materials, a plastic plate is arranged at the front part of the support plate, the two contact copper plates are respectively arranged at the left part and the right part of the front end of the plastic plate at intervals, the lower part of the support plate is arranged on the ground of a production workshop, the first set of charging equipment is arranged in the middle of the stop of one procedure before the production workshop, the second set of charging equipment is arranged in the middle of the stop of one procedure after the production workshop, the contact copper plates of the two sets of charging equipment face towards the inner side ends, the charging contact equipment is, the photoelectric switches are provided with two sets which are the same, the two sets of photoelectric switches are respectively arranged at the lower ends of the middle parts of the front end and the rear end of the trolley body of the transfer trolley, the control power switch and the charging control circuit are arranged on a circuit board, the circuit board is arranged in an element box, the element box is arranged at the right side part of the trolley body of the trolley, the switching power supply is arranged in another element box, the other element box is arranged in an electric control box of a production workshop, the power input end of the switching power supply and the two poles of a 220V alternating current power supply are respectively connected through leads, the two power output ends of the switching power supply and two contact copper plates of two sets of charging equipment are respectively connected through leads, the two positive and negative poles of a storage battery on the trolley are respectively connected with the two power input ends of the control power switch, the two sets of photoelectric switches and, the control power output end of the first set of photoelectric switch, the negative pole of the first power output end of the control power switch are respectively connected with the positive and negative pole power input ends of the motor speed reducing mechanism of the transfer trolley through leads, the positive pole of the second power output end of the control power switch is connected with the control power input end of the second set of photoelectric switch through leads, the negative pole of the second power output end of the second set of photoelectric switch and the negative pole power input end of the motor speed reducing mechanism of the transfer trolley are respectively connected with the positive and negative pole power input ends of the motor speed reducing mechanism of the transfer trolley through leads, the two ends of the power output of the two sets of charging contact equipment are respectively connected with the two ends of the control power input of the charging control circuit through leads, and the two ends of the control power output of the charging control circuit are.

The switching power supply is a switching power supply module converting Alternating Current (AC) 220V into Direct Current (DC).

Each set of photoelectric switch is matched with one relay, the relays are installed on the circuit board, the pin 3 of the high-level output terminal of the photoelectric switch is connected with the input end of the positive power supply of the relay through a lead, and the pin 2 of the input end of the negative power supply of the photoelectric switch is connected with the input end of the negative power supply of the relay through a lead.

The control power switch is provided with two power input ends and two power output ends.

The two contact copper plates and the supporting plate of the charging device are consistent in height.

Each set of charging contact equipment comprises a guide pipe, a front transverse plate and two contact copper springs, the front transverse plate is a plastic plate, the two contact copper springs are the same, the two contact copper springs are installed on the left side and the right side of the front end of the front transverse plate, the guide pipes are the same in two sets, each set of guide pipe comprises a pipe body, a spring, a guide rod, a guide circular seat and a guide cover, the lower end of the pipe body is of a sealed structure, external threads are arranged on the outer side of the pipe body, an opening is formed in the middle of the guide cover, the lower portion of the guide rod is installed in the middle of the guide circular seat, the springs, the guide circular seats and the lower portion of the guide rod are sequentially located in the pipe body, the springs are located at the lower portion of the guide circular seat, the upper portion of the guide rod is upwards led out through the opening in the middle of the guide.

In the two sets of charging contact devices, the rear sides of the two sets of guide pipes of the first set of charging contact device are respectively arranged at the left part and the right part in the middle of the front end of the transfer trolley body, the rear sides of the two sets of guide pipes of the second set of charging contact device are respectively arranged at the left part and the right part in the middle of the rear end of the transfer trolley body, the two contact copper springs of the two sets of charging contact devices are respectively connected in parallel through leads, and the leads are connected in parallel with the input two ends of the control power supply of the charging control circuit through leads.

And the two contact copper springs of each set of charging contact equipment are respectively positioned at the central parts of the two contact copper plates after being contacted with the two contact copper plates of each set of charging equipment.

The charging control circuit comprises an adjustable resistor, a relay and an NPN triode, wherein the adjustable resistor, the relay and the NPN triode are connected through circuit board wiring, one end of the adjustable resistor is connected with the positive power input end of a first relay and the control power input end of the first relay, the normally open contact end of the first relay is connected with the positive power input end of a second relay, the other end of the adjustable resistor is connected with one end of the resistor, the other end of the resistor is connected with the base electrode of the NPN triode, the collector electrode of the NPN triode is connected with the negative power input end of the first relay, and the emitter electrode of the NPN triode.

The utility model has the advantages that: the use process and the principle of the novel transfer trolley and the use process and the principle of the existing transfer trolley are not the same. This novel use, after transporting the dolly and moving to the stop motion in two processes around the workshop, two contact copper springs of two sets of charging contact device in both ends around the automobile body of dolly can contact with two contact copper of two sets of charging device respectively, and then, 28V power (guaranteeing that the battery normally charges) of switching power supply output gets into the control power supply input of charge control circuit, under charge control circuit's internal circuit effect, when the battery unloaded voltage of transporting the dolly is less than 26V, transport the dolly and move to the stop motion back around the workshop two processes, switching power supply output's power can be automatic for the battery charging, when the battery unloaded voltage of transporting the dolly is higher than about 26V, the battery can stop charging, prevent the drawback that the overcharge reduces battery life. This novel can charge in front and back two stations automatically, satisfy the progress needs of charging, do not need operating personnel to operate in the battery charging to need not stop production in charging, can not cause the influence to the production progress. Based on the above, so this novel application prospect that has.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the front left side perspective structure of the present invention.

Fig. 2 is a front plan view of one set of charging equipment according to the present invention.

Fig. 3 is a schematic diagram of the right side-view three-dimensional structure of the guide tube of one set of charging contact device of the present invention.

Fig. 4 is a circuit diagram of the switching power supply, the photoelectric switch, the control power switch, one of them charging device, one of them charging contact device, the charging control circuit.

Detailed Description

As shown in fig. 1, 2 and 3, an automatic charge control device for a transfer trolley comprises a switch power supply 1, a photoelectric switch 2 and a control power switch 3, and further comprises a charging device 4, a charging contact device 5 and a charging control circuit 6, wherein the charging device 4 has two sets, each set of charging device 4 comprises a 'l' shaped support plate 401 and two contact copper plates 402, the 'l' shaped support plate 402 is made of metal material, a plastic plate 403 with the same area as the front area of the support plate is installed at the front part of the support plate 402 through a screw nut, the two contact copper plates 402 are installed at the left and right parts of the front end of the plastic plate 403 through screw nuts at intervals from left to right (the two contact copper plates 402 are insulated from each other), the lower part of the support plate 401 is installed on the ground of a production workshop through screw nuts (a concrete seat can be prefabricated on the ground in advance, a screw, the supporting plate 401 is arranged on a concrete seat), the first set of charging equipment 4 is positioned in the middle of a stop point of a previous process in a production workshop, the second set of charging equipment 4 is positioned in the middle of a stop point of a next process in the production workshop, the contact copper plates 402 of the two sets of charging equipment 4 face to inner side ends (face to face), the charging contact equipment 5 has two sets which are the same, the two sets of charging contact equipment 5 are respectively arranged in the middle of the front end and the rear end of the body 7 of the transfer trolley, the photoelectric switches 2 have two sets which are the same, the two sets of photoelectric switches 2 are respectively arranged at the lower ends of the middle parts, the charging control circuit 6 is arranged on a circuit board, the circuit board is arranged in a component box 8, the component box 8 is arranged at the right side part of a trolley body 7 of the trolley, the switching power supply 1 is arranged in another component box, and the other component box 1 is arranged in an electrical control box in a production workshop.

As shown in fig. 1, 2 and 3, the lower ends of the middle parts of the front and rear ends of the body 7 of the transfer trolley are respectively provided with an opening, the shells of two sets of photoelectric switches 2 are respectively arranged in the openings of the lower ends of the middle parts of the front and rear ends of the body 7 of the transfer trolley, and the detecting heads of the two sets of photoelectric switches 2 respectively face the outer side of the body 7 of the trolley. The operating handle of the control power switch 3 is positioned outside the opening at the middle part of the upper end of the element box 8. The two contact copper plates 402 of the charging device are the same in height as the support plate 401, and the two contact copper plates 402 are spaced 2cm apart. Each set of charging contact equipment 5 comprises a guide pipe 501, a front transverse plate 502 and contact copper springs 503, wherein the front transverse plate 502 is a plastic plate, the contact copper springs 503 are two identical, the upper end of each copper spring 503 is welded with a circular copper plate 503-1, the lower end of each copper spring 503 is welded on a connecting circular plate with a plurality of fixing holes on the periphery, the connecting circular plates of the two copper springs 503 are arranged on the left side and the right side of the front end of the front transverse plate 502 from left to right through screw nuts, so that the two contact copper springs 503 are arranged on the left side and the right side of the front end of the front transverse plate 502, each set of guide pipe 501 comprises a pipe body 501-1, a spring 501-2, a guide rod 501-3, a guide circular seat 501-4 and a guide cover 501-5, the lower end of the pipe body 501-1 is of a sealed structure, the upper outer side of the pipe body 501-1 is provided with external threads, the middle part of the guide cover 501-5 is provided with an opening, the lower part of the guide rod 501-3 is welded at the middle part of the guide round seat 501-4, the spring 501-2, the guide round seat 501-4 and the lower part of the guide rod 501-3 are sequentially positioned in the pipe body 501-1, the spring 501-2 is positioned at the lower part of the guide round seat 501-4, the upper part of the guide rod 501-3 is led out upwards through the opening at the middle part of the guide cover 501-5, the external thread on the outer side of the upper part of the pipe body 501-1 is screwed in through the internal thread on the lower part of the guide cover 501-3, thereby installing the guide cover 501-5 on the body 501-1, in each set of charging contact devices 5, the guide rods 501-3 of the two sets of guide tubes are arranged at the left and right sides of the rear end of the front transverse plate 502 through the external threads at the upper parts of the guide rods 501-3 of the two sets of guide tubes and nuts, so that the two sets of guide tubes 501-1 are installed at the left and right sides of the rear end of the front cross plate 502. In the two sets of charging contact devices 5, the rear sides of the two sets of guide pipe bodies 501-1 of the first set of charging contact devices 5 are respectively welded at the left and right parts in the middle of the front end of the transfer trolley 7, the rear sides of the two sets of guide pipe bodies 501-1 of the second set of charging contact devices 5 are respectively welded at the left and right parts in the middle of the rear end of the transfer trolley 7, the two contact copper springs 503 of the two sets of charging contact devices are respectively connected in parallel through a lead, and the parallel lead is respectively connected with the two input ends of the control power supply of the charging control circuit 6 through leads. The two contact copper springs 503 of each set of charging contact device are respectively positioned at the central parts of the two contact copper plates 402 after contacting with the two contact copper plates 402 of each set of charging contact device.

As shown in fig. 4, the switching power supply IC3 is a finished product of a switching power supply module for changing 220V ac to 28V dc of bright weft brand, and has two

power input terminals

1 and 2 pins, two

power output terminals

3 and 4 pins, and an output current of 20A. Each set of photoelectric switches (IC1, IC2) is a finished product of laser diffuse reflection photoelectric switch with the brand TAYB/Tabang and the model TB12J-D15N1, each photoelectric switch (IC1, IC2) is provided with a relay (K1, K2), each relay (K1, K2) is installed on a circuit board, each photoelectric switch (IC1, IC2) is provided with two

power input terminals

1 and 2 pins and a high-level output terminal 3 pin, the working voltage is 24V, the front part of the shell of each photoelectric switch (IC1, IC2) is provided with an integrated infrared transmitting and receiving photoelectric tube detecting head, the detecting head can detect objects within a distance of 30cm, when the object terminal blocks at the front end of the detecting head, the high-level output terminal 3 pin can output high level, the maximum output current can reach 300mA, the rear part of the shell of each photoelectric switch (IC1, IC2) is provided with an adjusting knob, and the photoelectric switches (IC 6342, and the IC 1) can be controlled under different directions by adjusting the different distances of the adjusting knobs, IC2), and after adjustment in this embodiment, the detector head can detect objects within a distance of 25cm, the lower ends of the middle parts of the front end and the rear end of a vehicle body of the transfer trolley are respectively provided with an opening, the shells of two sets of photoelectric switches IC1 and IC2 are respectively arranged in the openings at the lower ends of the middle parts of the front end and the rear end of the vehicle body of the transfer trolley, the detection heads of the two sets of photoelectric switches IC1 and IC2 respectively face to the outer side of the vehicle body of the trolley, the pin 3 of the high-level output terminal of the first photoelectric switch IC1 is connected with the positive power input end of the relay K1 through a lead, the pin 2 of the negative power input end of the first photoelectric switch IC1 is connected with the negative power input end of the relay K1 through a lead, the pin 3 of the high-level output terminal of the second photoelectric switch IC2 is connected with the positive power input end of the relay K2 through a lead, and the pin 2 of the. The control power switch S is provided with two

power input ends

1 and 2 pins, two

power output ends

3 and 5 pins, and two

power output ends

4 and 6 pins, each power output end is provided with two output wiring ends, and an operating handle of the control power switch S is positioned outside an opening in the middle of the upper end of the element box. The two copper contact plates C1 and C2 of the charging device are consistent with the supporting plate in height, and the two copper contact plates C1 and C2 are spaced by 2 cm. The upper ends of copper springs J1 and J2 of the two sets of charging contact devices are welded with a round copper plate. Two contact copper springs J1, J2 of two sets of charging contact devices are respectively connected in parallel through a wire (a first contact copper spring J1 of a first set of charging contact devices is connected with a first contact copper spring J1 of a second set of charging contact devices through a wire, a second contact copper spring J2 of the first set of charging contact devices is connected with a second contact copper spring J2 of the second set of charging contact devices through a wire), and after the two sets of charging contact devices are connected in parallel, the wire is respectively connected with two ends of a relay K3 control power supply input of the charging control circuit through wires. The distance between the two contact copper springs J1 and J2 of each set of charging contact equipment is in contact with the two contact copper plates C1 and C2 of each set of charging equipment, and then the two contact copper plates C1 and C2 are respectively positioned at the central parts of the two contact copper plates and are respectively electrically conducted. The charging control circuit comprises an adjustable resistor RP, a resistor R1, relays K3 and K4 and an NPN triode Q1, the adjustable resistor RP, a resistor R1, relays K3 and K4 and the NPN triode Q1 are connected through circuit board wiring, one end of the adjustable resistor RP is connected with the positive power supply input end of the first relay K4 and the control power supply input end, the normally open contact end of the first relay K4 is connected with the positive power supply input end of the second relay K3, the other end of the adjustable resistor RP is connected with one end of the resistor R, the other end of the resistor R is connected with the base of the NPN triode Q1, the collector of the NPN triode Q1 is connected with the negative power supply input end of the first relay K4, and the emitter of the NPN triode Q1 is connected with the negative control power supply input.

As shown in fig. 4,

power input terminals

1 and 2 of the switching power supply IC3 and two poles of a 220V ac power supply are connected by wires, respectively. The two power output ends 3 and 4 pins of the switching power supply IC3 and two contact copper plates C1 and C2 of the two sets of charging equipment are respectively connected through leads. The positive and negative poles of a storage battery G on the trolley are respectively connected with the two

ends

1 and 2 of the power input end of a control power switch S, the two

ends

1 and 2 of the power input end of two sets of photoelectric switches 1C1, the two

ends

1 and 2 of the power input end of an IC2, one end of an adjustable resistor RP at the two ends of the power input end of a charging control circuit, and an emitting electrode of an NPN triode Q1 through leads. The positive electrode 3 of the first path of power output end of the control power switch S is connected with the control power input end of the relay K1 of the first set of photoelectric switch through a lead, and the normally closed contact end of the relay K1 of the control power output end of the first set of photoelectric switch and the negative electrode 5 of the first path of power output end of the control power switch S are respectively connected with the positive and negative pole power input ends of the motor speed reducing mechanism M of the transfer trolley through leads. The positive pole 4 feet of the second power output end of the control power switch S are connected with the control power input end of the relay K2 of the second set of photoelectric switch through leads, and the normally closed contact end of the relay K2 at the control power output end of the second set of photoelectric switch S and the negative pole 6 feet of the second power output end of the control power switch S are respectively connected with the positive pole and negative pole power input ends of the motor reducing mechanism M of the transfer trolley through leads. Two contact copper springs J1 and J2 at two power output ends of the two sets of charging contact equipment are respectively connected with two input ends of a relay K3 control power supply of the charging control circuit through leads. Two normally closed contact ends of a relay K3 at the two ends of the control power output of the charging control circuit and two ends of the power input of a storage battery G of the trolley are respectively connected through leads.

As shown in fig. 1, 2, 3, and 4, after 220V ac enters the

power input terminals

1 and 2 of the switching power supply IC3, the

pins

3 and 4 at the power output end of the switching power supply IC3 will output 28V dc power (to ensure normal charging of the 24V storage battery G) to enter the two contact copper plates C1 and C2 of the two sets of charging devices, and the two contact copper plates C1 and C2 of the two sets of charging devices are in a powered state. After a 24V power supply output by the positive and negative poles of a storage battery G on the trolley enters two

ends

1 and 2 of a power supply input of a control power switch S, two pins 1C1 of the two sets of photoelectric switches, two

ends

1 and 2 of a power supply input of an IC2, one end of an adjustable resistor RP at two ends of a power supply input of a charging control circuit and an emitter of an NPN triode Q1, the two

ends

1 and 2 of the power supply input of the control power switch S, the two sets of photoelectric switches 1C1, the IC2 and the charging control circuit are in a power-on state. The use process and the principle of the novel transfer trolley and the use process and the principle of the existing transfer trolley are not the same. Two sets of photoelectric switches 1C1, IC2, a control power switch S and a charging control circuit: when the novel transfer trolley is used, an operator in the previous procedure shifts the operating handle of the control power switch S forwards, so that

pins

1 and 2 of the power input end of the control power switch S are respectively communicated with

pins

4 and 6 of the power output end, the positive and negative poles of a 24V power supply output by the storage battery G enter the negative and positive pole power input ends of the motor speed reducing mechanism M of the transfer trolley through

pins

1 and 4 of the control power switch S, the control power input end of the relay K2, the normally closed contact end of the relay K2 and

pins

2 and 6 of the control power switch S, the motor of the motor speed reducing mechanism M rotates anticlockwise, and under the action of a speed reducing gear inside the motor speed reducing mechanism M, four wheels of the trolley rotate clockwise to move forwards towards the next procedure; when the trolley moves to the next procedure stop point, two contact copper springs J1 of a charging contact device at the rear part of the trolley body, two round copper plates at the front end of J2 are respectively contacted with a supporting plate 401 of a second set of charging device positioned at the next procedure stop point and two contact copper plates C1 and C2 in front of a plastic plate 403, and then a 28V direct-current power supply output by a switching power supply IC3 enters two control power supply input ends of a relay K3 of a charging control circuit (the two contact copper springs J1 and J2 are respectively connected with two control power supply input ends of the relay K3 of the charging control circuit through leads), and a storage battery G is charged through two normally closed contact ends of a relay K3; when the trolley body continues to advance, the two contact copper springs J1 and J2 are compressed, after the compression is carried out to a certain degree, the front transverse plate 502 of the charging contact device at the rear part of the trolley body pushes the guide rods 501-3 of the two guide tubes to pass through the guide round seats 501-4 and move backwards along the tube body 501-1 by overcoming the elastic acting force of the springs 501-2, after the trolley body moves to a certain degree, the distance between the front side of the probe of the photoelectric switch IC2 in the lower end opening at the rear middle part of the trolley body and the front sides of the supporting plate 401 and the plastic plate 403 is less than 25cm (before contact, the distance between the front side of the probe of the photoelectric switch IC2 and the contact copper spring round copper plate 503-1 of the charging contact device is 50cm), so under the action of the internal circuit of the photoelectric switch IC2, the 3 pins of the photoelectric switch IC2 output high level to enter the input end of the relay K2 power supply, the relay 2, because the normally closed contact end of the relay K2 is connected with the negative electrode of the motor reducing mechanism M, the motor reducing mechanism M stops working at the moment, and simultaneously, under the action of an electromagnetic brake mechanism of a motor in the motor reducing mechanism M, the motor is powered off, the electromagnetic brake mechanism is powered off, a brake pad of the electromagnetic brake mechanism brakes a rotating shaft brake disc of the motor, the rotating shaft of the motor does not rotate at once, and the trolley can be braked and stopped to move at once when the running speed of the trolley is slower; the charging contact device at the rear part of the vehicle body is in contact with the copper spring 503 and the springs 501-2 of the two guide pipes 501, and has the main function of buffering when the front horizontal plate 502 is in contact with the supporting plate 401 of the charging device at the stop point of the next procedure, and the circular copper sheets 503-1 in contact with the copper spring 503 and the two contact copper plates 402 are fully in contact and electrically conducted; after the distance between the rear part of the trolley body and the charging equipment 4 at the stop point of the next process is separated, the contact copper spring 503 of the charging contact equipment 5 at the rear end of the trolley body is restored to the original position under the elastic acting force; the spring 501-2 in the two guide pipes 501 of the charging contact device at the rear part of the trolley body pushes the guide round seat 501-4 and the guide rod 501-3 to move forwards to restore the original position, so that preparation is made for the next work.

As shown in fig. 1, 2, 3 and 4, two sets of photoelectric switches 1C1, IC2, control power switch S and charging control circuit: when the novel transfer trolley is used, after an operator of the next procedure shifts an operating handle of a control power switch S backwards,

pins

1 and 2 of a power input end of the control power switch S are communicated with

pins

3 and 5 of a power output end respectively, the positive and negative poles of a 24V power supply output by a storage battery G enter the positive and negative pole power input ends of a motor speed reducing mechanism M of the transfer trolley respectively through

pins

1 and 3 of the control power switch S, a control power input end of a relay K1, a normally closed contact end of a relay K1 and

pins

2 and 5 of the control power switch S, the motor of the motor speed reducing mechanism M rotates clockwise, and under the action of a speed reducing gear inside the motor speed reducing mechanism M, four wheels of the trolley rotate anticlockwise to move forwards to the previous procedure; when the trolley moves to the previous procedure stop point, the two circular copper plates at the front ends of the two contact copper springs J1 and J2 of the charging contact device at the front part of the trolley body are respectively contacted with the supporting plate 401 of the first set of charging device positioned at the previous procedure stop point and the two contact copper plates C1 and C2 in front of the plastic plate 403, and then a 28V direct-current power supply output by the switching power supply enters two control power supply input ends of a relay K3 of the charging control circuit (the two contact copper springs J1 and J2 are respectively connected with two control power supply input ends of the relay K3 of the charging control circuit through leads), and a storage battery G is charged through two normally closed contact ends of the relay K3; when the trolley body continues to move forward, the two contact copper springs J1 and J2 are compressed, after the compression is carried out to a certain degree, the front cross plate 502 of the charging contact device at the front part of the trolley body pushes the guide rods 501-3 of the two guide tubes to move backwards along the tube body 501-1 through the guide round seats 501-4 and overcome the elastic acting force of the springs 501-2, after the trolley body moves to a certain degree, the distance between the detecting head of the photoelectric switch IC1 in the lower end opening at the front middle part of the trolley body and the front sides of the supporting plate 401 and the plastic plate 403 is less than 25cm (before contact, the distance between the front of the detecting head of the photoelectric switch IC1 and the contact copper spring round copper plate 503-1 of the charging contact device is 50cm), so under the action of the internal circuit of the photoelectric switch IC1, the pin 3 of the photoelectric switch IC1 outputs high level to enter the positive power input end of the relay K1, the relay K1 electrically, because the normally closed contact end of the relay K1 is connected with the anode of the motor reducing mechanism M, at the moment, the motor reducing mechanism M stops working, and simultaneously, under the action of an electromagnetic brake mechanism arranged in the motor reducing mechanism M, the motor loses power, the electromagnetic brake mechanism loses power, a brake pad of the electromagnetic brake mechanism brakes a rotating shaft brake disc of the motor, the rotating shaft of the motor does not rotate immediately, and the trolley can brake and stop moving immediately when the running speed is lower; the charging contact device at the front part of the vehicle body is in contact with the copper spring 503 and the springs 501-2 of the two guide pipes 501, and has the main function of buffering when the front horizontal plate 502 is in contact with the supporting plate 401 of the charging device at the stop point of the previous process, and the circular copper sheets 503-1 in contact with the copper springs 503 and the two contact copper plates 402 are fully in contact and electrically conducted; after the front part of the trolley body is separated from the charging equipment 4 at the stop point of the previous process, the contact copper spring 503 of the charging contact equipment 5 at the front end of the trolley body is restored to the original position under the elastic acting force; the springs 501-2 in the two guide pipes 501 of the charging contact device at the front part of the trolley body push the guide round seats 501-4 and the guide rods 501-3 to move forwards to restore the original positions, so that preparation is made for the next work.

In practical use, as shown in fig. 4, no matter the vehicle body runs to the bottom dead center or the top dead center, the two sets of charging equipment will charge the battery G with the 28V dc power outputted by the switching power supply. When the no-load voltage of a storage battery G of the transfer trolley is lower than 26V, the voltage is reduced by an adjustable resistor RP and a resistor R1 and then enters the base of an NPN triode Q1 to be lower than the base 0.7V initial voltage of the NPN triode Q1, the NPN triode Q1 is in a cut-off state, relays K3 and K4 are in a power-off state, two normally closed contact ends of the relay K3 and two input ends of a control power supply are respectively closed, and the storage battery G is in a charging state; when the idle load voltage of the storage battery G of the transfer trolley is higher than 26V, the voltage is reduced by the adjustable resistor RP and the resistor R1 and enters the base of the NPN triode Q1 and is higher than the base of the NPN triode Q1 by 0.7V initial voltage, so that the NPN triode Q1 is in a conducting state, the collector of the NPN triode Q1 outputs high level to enter the negative power input end of the relay K4, the relay K4 is powered and closed to control the power input end and the normally open contact end, and the normally open contact end of the relay K4 is connected with the positive power input end of the relay K3, so that the relay K3 is powered and closed to respectively disconnect the two control power input ends and the two normally closed contact ends at the moment, and because the

pins

3 and 4 at the power output end of the switch power IC3 and the two contact copper plates C1 and C2 of the two sets of charging equipment are respectively connected by leads, the two contact copper springs J1 and J1 at, The two ends of the control power supply input of the J2 and the relay K3 are respectively connected through a lead, and the two normally closed contact ends of the relay K3 and the two ends of the power supply input of the storage battery G of the trolley are respectively connected through leads, so that after the idle load voltage of the storage battery G is higher than 26V, no matter the trolley is in the previous procedure or the next procedure, the power supply output by the switch power supply IC3 can not charge the storage battery G; thus, the battery G is automatically charged, and the disadvantages of overcharge and reduction of the life of the battery G are prevented. This is novel, and when the dolly was transported between the process from top to bottom, because wait for goods loading, unload and all need the dead time, can the fully provided charge time needs at every turn. In this novel, in the first actual production debugging, the resistance value of adjustable resistor RP is confirmed, connects the external 26V direct current power supply positive and negative poles respectively at adjustable resistor RP one end and NPN triode Q1 projecting pole, then contacts NPN triode Q1's base and projecting pole respectively with two detection heads of voltage detection table, then adjusts the adjustable knob of adjustable resistor RP, when the knob of adjusting adjustable resistor RP, NPN triode Q1 base department voltage is about 0.7V, NPN triode Q1 switches on, so the resistance value of adjustable resistor RP also just adjusts required resistance. This novel ability automatic control dolly battery G charges at two stations in front and back, satisfies the progress of charging needs, does not need operating personnel to operate in battery G charges to need not stop production in charging, can not cause any influence to the production progress. Based on the above, so this novel application prospect that has.

In fig. 4, relays K1, K2, K4 are 24V DC relays of model DC4123, model pinoler; the relay K3 is a 24V DC relay of the brand Songle, model SLA-24VDC-SL, and has two power input terminals, two control power input terminals, two normally closed contact terminals, and two normally open contact terminals. The NPN transistor Q1 is model number 9013. The resistor R1 is 200K. The adjustable resistance RP is specified to be 10M.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An automatic charging control device of a transfer trolley comprises a switch power supply, a photoelectric switch and a control power switch, and is characterized by also comprising two sets of charging equipment, charging contact equipment and a charging control circuit, wherein the charging equipment is the same, each set of charging equipment comprises a 'L' -shaped support plate and two contact copper plates, the 'L' -shaped support plate is made of metal materials, a plastic plate is arranged at the front part of the support plate, the two contact copper plates are respectively arranged at the left part and the right part of the front end of the plastic plate at intervals, the lower part of the support plate is arranged on the ground of a production workshop, the first set of charging equipment is arranged in the middle of the stop of one procedure before the production workshop, the second set of charging equipment is arranged in the middle of the stop of one procedure after the production workshop, the contact copper plates of the two sets of charging equipment face towards the inner side ends, the charging contact equipment is, the photoelectric switches are provided with two sets which are the same, the two sets of photoelectric switches are respectively arranged at the lower ends of the middle parts of the front end and the rear end of the trolley body of the transfer trolley, the control power switch and the charging control circuit are arranged on a circuit board, the circuit board is arranged in an element box, the element box is arranged at the right side part of the trolley body of the trolley, the switching power supply is arranged in another element box, the other element box is arranged in an electric control box of a production workshop, the power input end of the switching power supply and the two poles of a 220V alternating current power supply are respectively connected through leads, the two power output ends of the switching power supply and two contact copper plates of two sets of charging equipment are respectively connected through leads, the two positive and negative poles of a storage battery on the trolley are respectively connected with the two power input ends of the control power switch, the two sets of photoelectric switches and, the control power output end of the first set of photoelectric switch, the negative pole of the first power output end of the control power switch are respectively connected with the positive and negative pole power input ends of the motor speed reducing mechanism of the transfer trolley through leads, the positive pole of the second power output end of the control power switch is connected with the control power input end of the second set of photoelectric switch through leads, the negative pole of the second power output end of the second set of photoelectric switch and the negative pole power input end of the motor speed reducing mechanism of the transfer trolley are respectively connected with the positive and negative pole power input ends of the motor speed reducing mechanism of the transfer trolley through leads, the two ends of the power output of the two sets of charging contact equipment are respectively connected with the two ends of the control power input of the charging control circuit through leads, and the two ends of the control power output of the charging control circuit are.

2. The automatic charging control device for the transfer trolley according to claim 1, wherein the switching power supply is an AC 220V-to-DC switching power supply module.

3. The automatic charge control device for the transfer trolley according to claim 1, wherein each set of the photoelectric switch is provided with a relay, the relay is mounted on the circuit board, the pin 3 of the high-level output terminal of the photoelectric switch is connected with the positive power input terminal of the relay through a lead, and the pin 2 of the negative power input terminal of the photoelectric switch is connected with the negative power input terminal of the relay through a lead.

4. The automatic charge control device for the transfer trolley according to claim 1, wherein the control power switch has two power input terminals and two power output terminals.

5. The automatic charge control device of a transfer trolley according to claim 1, wherein the two contact copper plates and the supporting plate of the charging device have the same height.

6. The automatic charge control device for the transfer trolley according to claim 1, wherein each set of charge contact equipment comprises a guide pipe, a front transverse plate and two contact copper springs, the front transverse plate is a plastic plate, the two contact copper springs are the same, the two contact copper springs are arranged on the left side and the right side of the front end of the front transverse plate, the two guide pipes are the same, each set of guide pipe comprises a pipe body, springs and a guide rod, the guide circular seat is of a sealed structure, external threads are arranged on the outer side of the tube body, an opening is formed in the middle of the guide cover, the lower portion of the guide rod is installed in the middle of the guide circular seat, the spring, the guide circular seat and the lower portion of the guide rod are sequentially located in the tube body, the spring is located on the lower portion of the guide circular seat, the upper portion of the guide rod is upwards led out through the opening in the middle of the guide cover, the guide cover is installed on the tube body, and the front sides of the two sets of guide tubes are installed on the left side and the right side of the rear.

7. The automatic charge control device for the transfer trolley according to claim 6, wherein in the two sets of charging contact devices, the rear sides of the two sets of guide tubes of the first set of charging contact device are respectively installed at the left and right parts of the middle of the front end of the transfer trolley body, the rear sides of the two sets of guide tubes of the second set of charging contact device are respectively installed at the left and right parts of the middle of the rear end of the transfer trolley body, the two contact copper springs of the two sets of charging contact devices are respectively connected in parallel through wires, and the parallel wires are respectively connected with the two input ends of the control power supply of the charge control circuit through wires.

8. The automatic charge control device for the transfer trolley according to claim 6, wherein the two contact copper springs of each set of charge contact device are respectively located at the central parts of the two contact copper plates after being contacted with the two contact copper plates of each set of charge device.

9. The automatic charge control device for the transfer trolley according to claim 1, wherein the charge control circuit comprises an adjustable resistor, a relay and an NPN triode, the adjustable resistor, the relay and the NPN triode are connected through circuit board wiring, one end of the adjustable resistor is connected with a first relay positive power input end and a control power input end, a first relay normally open contact end is connected with a second relay positive power input end, the other end of the adjustable resistor is connected with one end of the resistor, the other end of the resistor is connected with a base of the NPN triode, a collector of the NPN triode is connected with a first relay negative power input end, and an emitter of the NPN triode is connected with a second relay negative power input end.