CN211038880U - Starting control protection device of diesel fork lift truck - Google Patents
Starting control protection device of diesel fork lift truck Download PDFInfo
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- CN211038880U CN211038880U CN201921017446.XU CN201921017446U CN211038880U CN 211038880 U CN211038880 U CN 211038880U CN 201921017446 U CN201921017446 U CN 201921017446U CN 211038880 U CN211038880 U CN 211038880U
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Abstract
The utility model relates to a starting control protection device of diesel fork truck, which comprises a seat switch, a safety belt switch, a hand brake switch, a starting relay, a direction switch and a starting switch which are connected with a starting controller, wherein the starting controller, the starting relay, a combination instrument and a generator are all connected between the anode and the cathode of a storage battery; the starting controller is connected with the combination instrument through a CAN bus, the coil end of the starting relay is connected to the starting controller, the input end of the contact of the starting relay is connected to the anode of the storage battery, and the output end of the contact of the starting relay is connected to the starter. The utility model discloses a start control system safety work, this start control system not only receives starting switch control, receives start control device control simultaneously, has reduced start safety risk, has taken precautions against the starter motor in the normal work and has beaten the tooth trouble and take place, effectual reduction potential safety hazard.
Description
Technical Field
The utility model relates to a fork truck control technical field, concretely relates to diesel fork truck's start control protection device.
Background
At present, the starting switch is generally adopted by domestic forklifts to match with a starter to realize the starting function of the forklifts. This requires a three-position start switch to be mounted and secured in the start switch mounting hole. When the forklift starts, the rotary starting switch is turned to an ON gear, the whole forklift is in a power-ON state, the rotary starting switch is turned to a Starter gear and is kept at the gear, a starting signal is transmitted to the Starter, the Starter starts to work to drive the whole forklift to start, the Starter switch is released after the whole forklift is started, and the Starter switch returns to the ON gear. The engine is shut down by selecting the starting switch from the ON gear position to the OFF gear position, thereby realizing the stop of the whole vehicle. In the starting process, the starting switch is in a normally closed state of a Starter gear due to the fact that the starting switch contact is sticky, and the Starter is always in starting; or after normal start, the rotary starting switch reaches the Starter gear, and the engine constantly appears the start action in work, leads to the Starter to beat the tooth, and this kind of starting signal control whole car that relies on single starting switch output starts the scheme and has certain potential safety hazard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a diesel fork truck's start control protection device has realized the safe work of start control system, and this start control system not only receives start switch control, receives start control device control simultaneously, has reduced the start safety risk, has taken precautions against the starter motor in the normal work and has beaten the tooth trouble and take place, effectual reduction potential safety hazard.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a starting control protection device of a diesel fork lift truck comprises a storage battery, a starter, a generator, a starting switch, a starting controller, a starting relay, a seat switch, a safety belt switch, a direction switch and a hand braking switch, wherein the starting relay, the seat switch, the safety belt switch, the direction switch and the hand braking switch are connected with the starting controller; two ends of a coil of the starting relay are respectively connected with two control ends of the starting relay, a switch static contact of the starting relay is connected with a node between the first fuse and an input end of the starting switch, a switch movable contact of the starting relay is connected with an incoming line end of the starter, and an outgoing line end of the starter is connected with a negative electrode of the storage battery; the direction switch is connected between the input end of the starting controller and the forward and backward switch signal in series, the seat switch is connected between the input end of the starting controller and the seat switch signal end in series, the safety belt switch is connected between the input end of the starting controller and the safety belt switch signal end in series, and the manual switch is connected between the input end of the starting controller and the manual switch signal end in series.
In the above scheme, two output ends of the start switch are respectively connected with the start controller through a second fuse and a third fuse; and the output end of the starting switch is connected with the combination instrument through a fourth fuse.
In the above scheme, the starting controller is connected with the combination instrument through a CAN bus.
In the above scheme, the seat switch, the hand brake switch and the direction switch are normally open switches, and the safety belt switch is a normally closed switch.
According to the above technical scheme, the utility model discloses a detect a plurality of switching signals and generator D + signal, judge starter operating condition, control fork truck's start-up, this kind of control mode has realized starting safety protection and has prevented to start the back restart. The utility model ensures that only an operator can be started under the premise of sitting on the forklift seat and fastening the safety belt by acquiring the seat switching signal and the safety belt switching signal in the starting control circuit; by collecting a neutral gear signal of the direction switch, the whole vehicle can not be started at a gear, and potential safety hazards of starting at the gear are avoided; the hand brake signal is collected, so that the whole vehicle can be started only under the parking state; through gathering generator D + control information, judge engine operating condition, prevent under the engine operating condition, restart starter, protect the starter, prevent that it from beating the tooth. Meanwhile, a combined instrument display seat switch, a safety belt switch, a hand brake switch, a direction switch and a generator D + control information working state are arranged, so that the system is more visual, and convenience is brought to an operator.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, the start control device of the diesel fork lift truck of the present embodiment includes a battery 1, a start relay 3, a starter 4, a start switch 6, a combination meter 10, a generator 14, a direction switch 5, a seat switch 11, a seat belt switch 12, a hand brake switch 13, and a start controller 15;
the positive pole of the storage battery 1 is connected with the input end of the starting switch 6 through the first fuse 2, the fixed contact end 31 of the starting relay 3 is connected with the input end of the starting switch 6, the movable contact of the starting relay 3 is connected with the wire inlet end of the starter 4, the wire outlet end of the starter 4 is connected with the negative pole of the storage battery 1 and the GND end of the generator 14, the ON end of the starting switch 6 is connected with the ON2 end of the generator 14, the ON end is connected with the ON1 end of the starting control device 15 through the third fuse 8, the Starter shift port of the starting switch 6 is connected with the STAT end of the starting control device 15 through the second fuse 7, and the ON shift port of the output end of the starting switch is connected to the combination instrument 10 through the fourth fuse 9; the storage battery 1 supplies power to the starting controller 15, the combination meter 10 and the generator 14 through the closing of an ON gear port at the output end of the starting switch 6.
A coil 32 of a starting relay 3 is connected in series between control ports BQ1 and BQ2 of a starting control device 15, a direction switch 5 is connected in series between an input port COM1 and input ends of a forward switch signal DG1 and a backward switch signal DG2, a seat switch 11 is connected in series between a COM2 port of the starting control device 15 and a seat switch signal DG3, a safety belt switch 12 is connected in series between a COM2 port and a safety belt switch signal DG4, and a hand brake switch 13 is connected in series between a COM2 port and a hand brake switch signal DG 5. D + control signals of a generator 14 are connected to a KD1 port of the starting control device 15 and a KD2 port of the combination instrument 10. the starting control device 15 and the combination instrument 10 are communicated through CAN buses (CAN-L, CAN-H1, CAN-L and CAN-H39.
The input end of a contact 32 of the relay 3 is connected with the anode of the storage battery 1, and the output end of the contact 32 of the relay is connected with the input end of the starter 4; when the input end and the output end of the coil 31 of the starting relay are closed, the contact 32 of the starting relay is closed and connected in series between the storage battery 1 and the starter 4, and the starter is started after being electrified. The seat switch 11 is a normally open switch, and is used for judging whether an operator sits on the seat or not, and when the operator does not sit on the seat, the seat switch 11 is turned off; the safety belt switch 12 is a normally closed switch, and is used for judging whether an operator fastens a safety belt or not, and when the operator fastens the safety belt, the safety belt switch 12 is switched off; the hand brake switch 13 is a normally open switch and is used for judging whether an operator pulls up the hand brake switch, and when the operator does not pull up the hand brake switch, the hand brake switch 13 is disconnected; the direction switch 5 is a normally open switch and is used for judging whether the whole vehicle is in a neutral gear state or not, and when the direction switch is in the neutral gear state, the direction switch can be started; the generator D + signal is a control signal and is used for judging whether the whole vehicle is in a working state, the voltage value of the generator D + signal output when the whole vehicle is not started is 0V, and the voltage value of the generator D + signal output when the whole vehicle is started is 12V.
The battery 1 is used as a system power supply, when an operator sits ON a seat, the seat switch 11 is switched ON, the starting switch 6 is switched ON to an ON gear port, the starting control device 15 connected with the ON gear port of the starting switch 6, the combination instrument 10 and the generator 14 are powered ON, the operator fastens the safety belt switch 12, shifts the direction switch 5 to a neutral gear, closes the hand brake switch 13, performs system self-check, all control parts work normally, the starting switch 6 is switched ON to a Starter gear port, an STA1 port of the starting control device 15 is powered ON, a voltage difference is generated at two ends of a coil 32 of the starting relay 3, a contact 31 of the starting relay 3 is closed and connected in series between the anode of the battery 1 and the Starter 4, a BE port of the Starter 4 is powered ON, the Starter is started, and the whole vehicle is in a working state. Meanwhile, the combined instrument 10 detects the working states of the direction switch 5, the seat switch 11, the safety belt switch 12 and the hand brake switch through the CAN bus, and a KD2 port of the combined instrument 10 detects the output state of a D + signal port of the generator 14 to judge the working state of the whole vehicle.
When an operator leaves, the seat switch 11 is switched off, the starting switch 6 is switched on to the Starter gear, the whole vehicle is not started, the starting control device 15 outputs a signal to the combination instrument 10 through the CAN bus, and the combination instrument 10 prompts the operator that the system cannot be started when the operator does not sit on the seat; when an operator sits on a seat, the seat switch 11 is switched on, the safety belt is not fastened, the safety belt switch 12 is switched on, the starting switch 6 is switched to the Starter gear port, the whole vehicle is not started, the starting control device 15 outputs a signal to the combination instrument 10 through the CAN bus, and the combination instrument 10 prompts that the system which is not fastened with the safety belt cannot be started;
when an operator sits on a seat, the seat switch 11 is switched on, a safety belt is fastened, the safety belt switch 12 is switched off, the hand brake switch 13 is switched off, the starting switch 6 is switched on to the Starter gear, the whole vehicle is not started, the starting control device 15 outputs a signal to the combination instrument 10 through the CAN bus, and the combination instrument 10 prompts that the hand brake switch is not closed and the system cannot be started;
when an operator sits on the seat, the seat switch 11 is switched on, the safety belt switch 12 is switched off, the hand brake switch 13 is switched on, the direction switch 5 is in a state that the forward switch S2 is switched on or the backward switch S3 is switched on, the starting switch 6 is switched to the Starter gear, the whole vehicle is not started, the starting controller 15 outputs a signal to the combination instrument 10 through the CAN bus, and the combination instrument 10 prompts that the direction switch is not in a neutral gear state and the system cannot be started;
when an operator sits ON the seat, the seat switch 11 is switched ON, the safety belt switch 12 is switched off, the hand brake switch 13 is switched ON, the direction switch 5 is in a neutral state, the signal output of the generator D + is in a low level state, the starting switch 6 is switched ON to a Starter gear, the STA1 port of the starting control device 15 is electrified, a voltage difference is generated at two ends of the coil 32 of the starting relay 3, the contact 31 of the starting relay 3 is switched ON, the BE port of the Starter 4 is electrified, the Starter is started, the whole vehicle is started, and at the moment, the starting switch 6 jumps to an ON gear from the Starter gear; after the whole vehicle is started, the rotary starting switch 6 is switched ON from an ON gear to a Starter gear, the starting control device 15 outputs a signal to the combination instrument 10 through the CAN bus, and the combination instrument 10 prompts that the starting system of the whole vehicle CAN not be started again.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (5)
1. A starting control protection device of a diesel fork lift truck is characterized in that: the battery starter comprises a storage battery, a starter, a generator, a starting switch, a starting controller, a starting relay, a seat switch, a safety belt switch, a direction switch and a hand braking switch, wherein the starting relay, the seat switch, the safety belt switch, the direction switch and the hand braking switch are connected with the starting controller;
two ends of a coil of the starting relay are respectively connected with two control ends of the starting relay, a switch static contact of the starting relay is connected with a node between the first fuse and an input end of the starting switch, a switch movable contact of the starting relay is connected with an incoming line end of the starter, and an outgoing line end of the starter is connected with a negative electrode of the storage battery;
the direction switch is connected between the input end of the starting controller and the forward and backward switch signal in series, the seat switch is connected between the input end of the starting controller and the seat switch signal end in series, the safety belt switch is connected between the input end of the starting controller and the safety belt switch signal end in series, and the hand brake switch is connected between the input end of the starting controller and the hand brake switch signal end in series.
2. The startup control protection device of a diesel fork lift truck according to claim 1, characterized in that: and two output ends of the starting switch are respectively connected with the starting controller through a second fuse and a third fuse.
3. The startup control protection device of a diesel fork lift truck according to claim 1, characterized in that: the starting controller is connected with the combination instrument through a CAN bus.
4. The startup control protection device of a diesel fork lift truck according to claim 1, characterized in that: and the output end of the starting switch is connected with the combination instrument through a fourth fuse.
5. The startup control protection device of a diesel fork lift truck according to claim 1, characterized in that: the seat switch, the hand brake switch and the direction switch are normally open switches, and the safety belt switch is a normally closed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017446.XU CN211038880U (en) | 2019-07-02 | 2019-07-02 | Starting control protection device of diesel fork lift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017446.XU CN211038880U (en) | 2019-07-02 | 2019-07-02 | Starting control protection device of diesel fork lift truck |
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| CN211038880U true CN211038880U (en) | 2020-07-17 |
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| CN201921017446.XU Active CN211038880U (en) | 2019-07-02 | 2019-07-02 | Starting control protection device of diesel fork lift truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318927A (en) * | 2019-07-02 | 2019-10-11 | 安徽合力股份有限公司 | A kind of starting control protective unit of diesel fork lift truck and its control guard method |
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- 2019-07-02 CN CN201921017446.XU patent/CN211038880U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318927A (en) * | 2019-07-02 | 2019-10-11 | 安徽合力股份有限公司 | A kind of starting control protective unit of diesel fork lift truck and its control guard method |
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