CN102225731A - Crane as well as startup controlling method and system thereof - Google Patents
Crane as well as startup controlling method and system thereof Download PDFInfo
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- CN102225731A CN102225731A CN201110162670XA CN201110162670A CN102225731A CN 102225731 A CN102225731 A CN 102225731A CN 201110162670X A CN201110162670X A CN 201110162670XA CN 201110162670 A CN201110162670 A CN 201110162670A CN 102225731 A CN102225731 A CN 102225731A
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Abstract
The invention discloses a crane startup controlling method. The method comprises the following steps: 11) sending a command of starting an engine by a lower cart; 12) detecting whether a gearbox connected with the engine is in a neutral position or not, performing a step 13) if the engine is in the neutral position, otherwise performing a step 14); 13) starting the engine; and 14) suspending the startup of the engine. By utilizing the controlling method, when the lower cart is started, the gear state of the gearbox is detected, the engine only can be started when the gearbox is in the neutral position, and the engine cannot be started when the gearbox is not in the neutral position. After the operation of an upper cart is completed, the engine cannot be started in an operation cab of the lower cart even an operator does not switch the gearbox to the neutral position, so that a vehicle is prevented from running out suddenly when the lower car is started, thus the startup safety of the lower cart is improved. The invention also discloses a crane and a startup controlling system thereof.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly a kind of control method of hoisting crane starting.The invention still further relates to the control system of a kind of hoisting crane and starting thereof.
Background technology
Hoisting crane should realisticly show the road driving function as a kind of engineering truck, also must satisfy the demand of hoisting operation simultaneously.
Please refer to Fig. 1, Fig. 1 is a kind of representative type hoisting crane integral structure scheme drawing.
Hoisting crane mainly is divided into according to function and has getting off of the driving functions partial sum that travels and have the operation part of getting on the bus of lift heavy operation function, and the getting off part of travelling has the control cabin of getting off 10, and the operation of getting on the bus partly has control cabin of getting on the bus 30 and arm 20.Hoisting crane, especially at the hoisting crane of medium and small tonnage, the shared cover of getting on the bus and get off usually is installed on the power system of getting off, and the required power of the operation of promptly getting on the bus also comes from the driving engine of getting off.After engine power is exported through output shaft of gear-box, can be via transmission shaft, vehicle bridge, tire, powered vehicle is travelled, and also can be passed to the power system of the operation of getting on the bus via hydraulic oil pump, the driving hoisting operation of getting on the bus is called power taking with the powershift of driving engine to the process of the operation of getting on the bus.
Please refer to Fig. 2, Fig. 2 is a kind of control principle figure of representative type hoisting crane starting.Hoisting crane can be by the control cabin or the operator's compartment of the getting on the bus starting of getting off as seen from the figure.
Process by control cabin 10 startings of getting off is as follows: the fire switch S1 that will get off gets to the I shelves, electric current is flowed through from storage battery G, and the energising starting is insured, power supply relay K1, then the coil of power supply relay K1 gets electricly, and its contact K1 ' connects storage battery G to the circuit between terminal of engine starting motor M; The fire switch S1 that will get off again gets to the II shelves, and electric current is connected the coil of starting relay K2 behind the fire switch S1 that gets off, and its contact K2 ' connects storage battery G to the circuit between the actuating motor another terminal, realizes the starting of vehicle.
Process by control cabin 30 startings of getting on the bus is as follows: the fire switch S2 that will get on the bus gets to the I shelves, electric current is flowed through from storage battery G, and the energising starting is insured, power supply relay K1, then the coil of power supply relay K1 gets electricly, and its contact K1 ' connects storage battery G to the circuit between terminal of engine starting motor M; Press the power taking handle in the operator's compartment of getting on the bus, gaseous tension promote mechanical device with the powershift of driving engine to the operating condition of getting on the bus, power taking detector switch S3 detects the power taking success, be that engine power has switched to when getting on the bus, power taking detector switch S3 closure, the coil of power taking relay K 3 gets, its contact K3 ' connects the circuit of storage battery G to starting relay K2, the coil of starting relay K2 gets, its contact K2 ' connects storage battery G to the circuit between the actuating motor M another terminal, realizes the starting of vehicle.
There is following technical matters in the operation mode of above-mentioned engine starting: at first, when getting off trip-start, require change speed gear box to be positioned at neutral gear, otherwise vehicle is scurried out easily when starting suddenly; And be in when getting on the bus the operation operating mode, require change speed gear box at non-neutral gear, at this moment, the power of driving engine output directly passes through hydraulic oil pump, is passed to the power system of getting on the bus, and drives the operation of getting on the bus.Control principle shown in Fig. 2 as can be known, the starting of getting off of hoisting crane is unrestricted, and the operator tends at the gear of having operated the takeoff output state of forgetting switching engine after getting on the bus (promptly whether power taking) and change speed gear box, when getting off operator's compartment starting vehicle, scurry out suddenly, cause major accident.
Secondly, according to the control process of Fig. 2 as can be known, when vehicle launch is got on the bus operation, get off and still can carry out the starting procedure of driving engine, therefore, operator's maloperation may cause the reignition of driving engine after starting in the operator's compartment of getting off, and cause the Starting motor of driving engine to damage.
Therefore, how further improving and coordinate the originate mode of getting on the bus and getting off, take the corresponding protection measure, improve the safety of hoisting crane starting, is those skilled in the art's technical issues that need to address.
Summary of the invention
At above-mentioned technical matters, the objective of the invention is to provide a kind of control method of hoisting crane starting, this control method is set the corresponding protection measure at the originate mode of getting off, and can improve the safety of hoisting crane starting.Another object of the present invention provides the control system of a kind of hoisting crane and starting thereof.
For reaching the present invention's first purpose, the invention provides a kind of control method of hoisting crane starting, may further comprise the steps:
11) send the instruction of the fire an engine of getting off;
12) detect with described driving engine bonded assembly change speed gear box whether be in neutral gear, be, then enter step 13), not, then enter step 14);
13) fire an engine;
14) starting of interruption driving engine.
Preferably, between step 11) and step 12), have following steps:
110) detecting the power taking state that whether is in, not, then enter step 12), is then to enter step 14).
The control method of hoisting crane starting provided by the present invention is when getting off starting, in terms of existing technologies, increased the detection step of change speed gear box gear, driving engine only can start when change speed gear box is in neutral gear, and when change speed gear box was in non-neutral gear, driving engine can't start.After the operation of then getting on the bus is finished, even the operator does not switch to change speed gear box the neutral gear gear, also can't fire an engine in the control cabin of getting off, when avoiding getting off starting, vehicle is scurried out suddenly, thereby improves the safety of the starting of getting off.
In further technical scheme, increase step S110), getting off only is positioned at neutral gear constantly in non-power taking state and change speed gear box, can fire an engine.When avoiding getting on the bus operation, when transmission neutral occurring, getting off also can fire an engine, and the reignition that operator's maloperation may cause in the control cabin of promptly avoiding getting off prolongs service life of engine cranking motor.
For reaching second purpose of the present invention, the invention provides a kind of control system of hoisting crane starting, the starting device of getting off that comprises change speed gear box, driving engine, the described driving engine of starting, also comprise and detect the neutral gear detecting device whether described change speed gear box is in neutral gear, described neutral gear detecting device is connected with the described starting device of getting off; When described change speed gear box was in neutral gear, the described starting device of getting off connected the starting end of described driving engine.
Preferably, the described starting device of getting off comprises get off fire switch and power supply, the described break-make of the described power supply of fire switch control conducting of getting off to the starting circuit of described engine starting end, described neutral gear detecting device comprises according to described transmission neutral/non-neutral gear and the neutral gear detector switch of on/off, the described fire switch of getting off is connected and described neutral gear detector switch when connecting, and described starting circuit is connected.
Preferably, two contacts of the described fire switch of getting off, starting relay, described neutral gear relay are series in first close circuit in parallel with described starting circuit; Two contacts of described starting relay are series in the described starting circuit.
Preferably, when described control system also is provided with power taking/non-power taking, the power taking detector switch of on/off; The described fire switch of getting off is connected, and described power taking detector switch disconnects, when described neutral gear detector switch is connected, described starting circuit is connected.
Preferably, described power taking detector switch is connected with the power taking relay, and during described power taking detector switch on/off, the contact of described power taking relay is in first conducting state/second conducting state; The described fire switch of getting off is connected, and the contact of described power taking relay is in second conducting state, when described neutral gear detector switch is connected, described starting circuit is connected.
Control system provided by the present invention is provided with the neutral gear detecting device, when the neutral gear detecting device detects change speed gear box when being in neutral gear, be connected the starting end of driving engine with the neutral gear detecting device bonded assembly starting device of getting off, the starting starting device of getting off then can fire an engine.Promptly be in when getting off starting state, also need the gear of change speed gear box to be in neutral gear, starter can start.After the operation of then getting on the bus is finished, even the operator does not switch to change speed gear box the neutral gear gear, also can't fire an engine in the control cabin of getting off, when avoiding getting off starting, vehicle is scurried out suddenly, thereby improves the safety of the starting of getting off.
In further technical scheme, the starting device of getting off comprises get off fire switch and power supply, the neutral gear detecting device comprises the neutral gear detector switch, the neutral gear detector switch is according to the range state of the change speed gear box that detects, be switched on or switched off circuit, when the neutral gear detector switch with get off fire switch when all being in on-state, can be in the control cabin of getting off fire an engine.This scheme is used simple on-off element, is switched on or switched off the circuit of power supply to the engine starting end, realizes the starting of driving engine, or interrupts the starting of driving engine, and circuit layout is simple, realizes easily in practical operation.
In further technical scheme, the power taking detector switch also is set, when getting off starting, be in non-power taking state, and change speed gear box is when being in neutral gear, the fire an engine of can getting off certainly.When avoiding getting on the bus operation, when transmission neutral occurring, getting off also can fire an engine, and the reignition that operator's maloperation may cause in the control cabin of promptly avoiding getting off prolongs service life of engine cranking motor.
For reaching the 3rd purpose of the present invention, the present invention also provides a kind of hoisting crane, comprise get off, get on the bus, driving engine, and the control system of starting described driving engine, described control system is the control system of above-mentioned each described hoisting crane starting.Because the control system of above-mentioned hoisting crane starting has above-mentioned technique effect, the hoisting crane with above-mentioned control system also has identical technique effect.
Description of drawings
Fig. 1 is a kind of representative type hoisting crane integral structure scheme drawing;
Fig. 2 is a kind of control principle figure of representative type hoisting crane starting;
Fig. 3 is the diagram of circuit of first kind of specific embodiment of control method of hoisting crane starting provided by the present invention;
Fig. 4 is the diagram of circuit of second kind of specific embodiment of control method of hoisting crane starting provided by the present invention;
Fig. 5 is the control principle figure of a kind of specific embodiment of control system of hoisting crane starting provided by the present invention.
The specific embodiment
Core of the present invention is the control method that a kind of hoisting crane starting will be provided, and this control method is set the corresponding protection measure at the originate mode of getting off, and can improve the safety of hoisting crane starting.Another core of the present invention provides the control system of a kind of hoisting crane and starting thereof.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 3, Fig. 3 is the diagram of circuit of first kind of specific embodiment of control method of hoisting crane starting provided by the present invention.
The control method of hoisting crane starting provided by the present invention may further comprise the steps:
Step S11) sends the instruction of the fire an engine of getting off;
The instruction of fire an engine of getting off can have various ways, realize by the starting device of getting off, such as, the fire switch of getting off opened, when starting down, also can be the starting order of getting off that is directly inputted into controller at focus control mode (using the starting of controller control driving engine).As shown in the above, the instruction of the fire an engine of getting off can have various ways, mainly is car load is adjusted to from the pre-a kind of state that starts of getting off.
Step S12) detecting with driving engine bonded assembly change speed gear box whether be in neutral gear, is then to enter step S13), not, then enter step S14);
Step S14) starting of interruption driving engine.
During the change speed gear box gear switch, the position of its gear bar changes, can determine whether change speed gear box is in neutral state by the change in location that position detecting device detects the gear bar, then in control circuit, can be provided with and gear bar position detecting device bonded assembly neutral gear detector switch.The neutral gear detector switch is switched on or switched off corresponding starting circuit according to the evolution of gear bar, when the gear bar is in Neutral Position, enters step S13), when being neutral gear, the neutral gear detector switch is connected starting circuit, and the circuit of engine starting gear is connected, thus fire an engine; When the gear bar is in non-neutral gear, disconnect starting circuit, interrupt the starting of driving engine, then driving engine can't start, and is in off working state, i.e. step S14).Certainly, under focus control mode, can input in the controller by the position signal of position transduser with the gear bar, this signal and the neutral gear signal of presetting are compared, unanimity is then exported the signal (connection starting circuit) of fire an engine, promptly enters step S13); Inconsistent, then do not send the signal of fire an engine, enter step S14).
The control method of the hoisting crane starting that this embodiment provided is when getting off starting, in terms of existing technologies, increased the detection step of change speed gear box gear, driving engine only can start when change speed gear box is in neutral gear, and when change speed gear box was in non-neutral gear, driving engine can't start.After the operation of then getting on the bus is finished, even the operator does not switch to change speed gear box the neutral gear gear, also can't fire an engine in the control cabin of getting off, when avoiding getting off starting, vehicle is scurried out suddenly, thereby improves the safety of the starting of getting off.
Please refer to Fig. 4, Fig. 4 is the diagram of circuit of second kind of specific embodiment of control method of hoisting crane starting provided by the present invention.
In second kind of specific embodiment, at step S11) and step S12) between increase step S110),
Step S110) detect the power taking state that whether is in, not, then enter step S13), be then to enter step S14).
In this specific embodiment, when getting off starting, except detecting whether neutral gear of change speed gear box, also detect whether be in the power taking state, promptly whether the power of detection of engine exports the hydraulic oil pump (power taking state) of the operation of getting on the bus to, export to when getting off driving system, then belong to non-power taking state, driving engine travels for getting off power is provided, at this moment, enter step S13 again), concrete working process is with above-mentioned first kind of specific embodiment.
Increase step S110) after, when getting off starting, only when non-power taking state and change speed gear box are in neutral gear, can fire an engine.When avoiding getting on the bus operation, when transmission neutral occurring, getting off also can fire an engine, and the reignition that operator's maloperation may cause in the control cabin of promptly avoiding getting off prolongs service life of engine cranking motor.
In fact, according to foregoing as can be known, when getting off starting, comparatively preferred scheme is with transmission neutral and is in non-power taking state as the successful necessary condition of starting, whether power taking also can be changed mutually with the step whether detection is in neutral gear so detect, or detects simultaneously.
Certainly, the foregoing description is all at the control process of driving engine from the starting of getting off.Also can designed engines from the control method of the starting of getting on the bus.When driving engine started from getting on the bus, whether same detection was in the power taking state, and when belonging to, when promptly detection of engine provided power for the operation of getting on the bus, then fire an engine not, then made driving engine be in off working state.Only promptly get on the bus when the power taking state, can fire an engine, avoid getting off when travelling, carry out start-up function getting on the bus, both wasted energy, also there is potential safety hazard.When will whether be in the power taking state preferably as get off the starting necessary condition the time, also can unify to design the control system of the starting and the starting of getting off of getting on the bus, during power taking, according to whether receiving the starting order control of getting on the bus, during non-power taking, control by above-mentioned control principle of getting off starting.
Please refer to Fig. 5, Fig. 5 is the control principle scheme drawing of a kind of specific embodiment of control system of hoisting crane starting provided by the present invention.
Except the control method of above-mentioned hoisting crane starting, the present invention also provides a kind of control system of hoisting crane starting, comprises the starting device of getting off of change speed gear box, driving engine, fire an engine, also comprises and detects the neutral gear detecting device whether change speed gear box is in neutral gear.The starting device of getting off in this specific embodiment comprises get off fire switch S10 and power supply G1, also has the fire switch of getting on the bus S20, the break-make of the starting circuit of the fire switch S10 that gets off control power supply G1 and the conducting of engine starting end, the starting end of the driving engine shown in Fig. 5 is actuating motor M1, during the starting circuit conducting, the first terminal 30 of the positive best actuating motor of power supply G1 M1 and second terminal 50 are connected, and the negative pole of power supply G1 is connected the 3rd terminal 31 of actuating motor M1, and actuating motor M1 opens.After the actuating motor M1 starting rotation, can drive engine rotation, thereby realize the starting of hoisting crane.The get off fire switch S10 and the fire switch S20 that gets on the bus all can control the break-make of starting circuit, promptly get on the bus fire switch S20 and get off fire switch S10 all can fire an engine.Unlike the prior art be, this control system also is provided with the neutral gear detecting device of change speed gear box, the neutral gear detecting device shown in Fig. 5 comprises neutral gear detector switch S40, controls the break-make of starting circuit jointly by the neutral gear detector switch S40 and the fire switch S10 that gets off.
Neutral gear detector switch S40 can be according to the change in location of change speed gear box gear bar and the change state, the neutral gear detector switch S40 shown in Fig. 5, and during gear bar neutral gear, when neutral gear detector switch S40 switch on, non-neutral gear, cut off.
In this specific embodiment, the neutral gear detector switch S40 and the fire switch S10 that gets off all control the break-make of starting circuit by relay, the fire switch S10 that gets off has 0 grade, three positions of I shelves and II shelves, the I P PARK Position P of fire switch S10 of getting off is series in the 3rd close circuit in parallel with starting circuit with power supply relay K10, neutral gear detector switch S40 is series in second close circuit in parallel with starting circuit with neutral gear relay K 40, the II P PARK Position P of fire switch S10 of getting off is series in first close circuit in parallel with the 3rd close circuit with starting relay K20, and wherein two contact K40 ' of neutral gear relay K 40 also are series in first close circuit.During neutral gear detector switch S40 on/off, the contact K40 ' of neutral gear relay is in first conducting state/second conducting state, when being in first conducting state, the contact K40 ' of neutral gear relay K 40 connects first close circuit, when being in second conducting state, the contact K40 ' of neutral gear relay K 40 disconnects first close circuit.
As shown in Figure 5, process by the fire an engine of getting off is as follows: at first, the fire switch S10 that will get off opens to the I shelves, promptly send the instruction of the starting of getting off, the coil electricity of power supply relay K10, power supply G1 is to the path of actuating motor M1 the first terminal 30 in contact K10 ' the connection starting circuit of power supply relay K10, and the fire switch S10 that will get off again opens to the II shelves, then this moment, be in the state of getting off and starting; At this moment, when neutral gear detector switch S40 detects change speed gear box and is in neutral gear, closed, the coil of neutral gear relay K 40 gets, the contact K40 ' of neutral gear relay K 40 connects first close circuit, then the coil of starting relay K20 gets electricly, and contact K20 ' the energized G1 of starting relay K20 is to the path of actuating motor M1 second terminal 50, and then this moment, actuating motor M1 can rotate with fire an engine.The fire switch S10 that gets off does not open, and be not in when getting off starting state, or change speed gear box all can't be got off from hoisting crane and realize the starting of driving engine when not being in neutral gear.
Need to prove, in this embodiment, neutral gear detector switch S40 directly is not communicated with the positive pole of power supply G1, but with contact K10 ' the on/off power supply G1 of power supply relay K10, and on/off power supply G1, after the fire switch S10 that promptly gets off opened, the side carried out the whether detection of neutral gear of change speed gear box, when the fire switch S10 that gets off does not open, the safety of starting is not subjected to the whether influence of neutral gear of change speed gear box owing to get on the bus, at this moment, do not carry out the whether detection of neutral gear of change speed gear box, this design is more rationally energy-conservation.
In the above-mentioned embodiment, neutral gear detector switch S40 realizes the break-make of first close circuit by neutral gear relay K 40, thereby controls the break-make of starting circuit indirectly.In fact, also can make the break-make of neutral gear detector switch S40 direct control first close circuit, certainly, because the concrete installation site restriction of neutral gear detector switch S40, and relay exists and can preferably adopt the break-make of neutral gear detector switch S40 in conjunction with the mode control circuit of neutral gear relay K 40 by the advantage of the big electric current of small electric current control.
After then the control system in this embodiment is provided with neutral gear detector switch S40, the fire switch S10 that gets off opens, hoisting crane is in the starting state of getting off, neutral gear detector switch S40 detects that change speed gear box is in neutral gear and when connecting, can be in the control cabin of getting off fire an engine, promptly be in when getting off starting state, also need the gear of change speed gear box to be in neutral gear.After the operation of then getting on the bus is finished, even the operator does not switch to change speed gear box the neutral gear gear, also can't fire an engine in the control cabin of getting off, when avoiding getting off starting, vehicle is scurried out suddenly, thereby improves the safety of the starting of getting off.
In further technical scheme, control system can also be provided with power taking detector switch S30, is controlled the break-make of starting circuit jointly by power taking detector switch S30 and get off fire switch S10, neutral gear detector switch S40.Power taking detector switch S30 can change state according to the connection mode of engine power output shaft, the power taking detector switch S30 shown in Fig. 5, and when hoisting crane is in the power taking state, switch on, during non-power taking, cut off.
Identical with the principle of the foregoing description, power taking detector switch S30 realizes the control of connecting and disconnecting of the circuit equally by relay.In this specific embodiment, power taking detector switch S30 controls the conducting state of the first power taking relay K 30 and the second power taking relay K 50.As shown in Figure 5, the power taking detector switch S30 and the first power taking relay K 30 are series in the 4th close circuit in parallel with starting circuit; The coil of the fire switch S20 and the second power taking relay K 50 of getting on the bus is series in the 5th close circuit in parallel with the 4th close circuit; During power taking/non-power taking, contact K30 ' on/off the 5th close circuit of the first power taking relay K 30, contact K50 ' disconnection/connection first close circuit of the second power taking relay K 50.
The starting process of getting off is as follows: at first, the fire switch S10 that will get off opens to the I shelves, and energized G1 opens to the II shelves to the path of actuating motor M1 the first terminal 30, is switched to first close circuit; Power taking detector switch S30 detects whether power taking, and during non-power taking, the coil of the coil of the first power taking relay K 30 and the second power taking relay K 50 all must not electricity, and the contact K50 ' of the second power taking relay K 50 is switched to first close circuit; At this moment, also need detect change speed gear box and whether be in neutral gear, when being in neutral gear, neutral gear detector switch S40 closure, the coil of neutral gear relay K 40 gets electric, and the contact K40 ' of neutral gear relay K 40 is switched to first close circuit, and then first close circuit is connected.The contact K40 ' of fire switch S10, the neutral gear relay K 40 of promptly getting off, when the contact K50 ' of the second power taking relay K 50 all is switched to first close circuit, first close circuit is connected, starting relay K20 side gets electric, and then connects starting circuit, fire an engine.
In this embodiment, simultaneously, can also control the starting process of getting on the bus.The starting process of getting on the bus is as follows: during power taking, and power taking detector switch S30 closure, the coil of the first power taking relay K 30 gets electric, and the contact K30 ' of the first power taking relay K 30 connects the positive pole of fire switch S20 to power supply G1 of getting on the bus; The fire switch S20 that will get on the bus opens to the I shelves, the coil of power supply relay K10 gets, its contact K10 ' energized G1 is to the circuit of actuating motor M1 the first terminal 30, open to the II shelves, the coil of starting relay K20 gets, the circuit of its contact K20 ' energized G1 to the second terminal 50, starting is connected, and then driving engine is started.When hoisting crane is in non-power taking, obviously, gets on the bus and to start.
In this specific embodiment, in the time of can also making contact K50 ' on/off first close circuit of the second power taking relay K 50, disconnection/connection the path of fire switch S20 of getting on the bus to starting relay K20, this kind design can be simplified the layout of circuit, further guarantees the restriction to the starting of getting on the bus.In addition, need to prove that in Fig. 5, power taking detector switch S40 is after the battery isolator control closure, promptly be in detected state, neutral gear detector switch S30 then opens the rear at the fire switch S10 that gets off and detects, and the position of power taking detector switch S40 is provided with herein, has the function that the control of taking into account is got on the bus and started, in fact, also can design the power taking detector switch that independent control is got off and started, its checking sequence is positioned at after the neutral gear detection, or carry out simultaneously with the neutral gear detection.
This embodiment, when starting of getting off certainly, only be in the state of neutral gear in non-power taking and change speed gear box, can fire an engine.The starting that both can effectively prevent to get off the time was scurried out suddenly, in the time of can preventing power taking again, got off starting and caused the reignition of driving engine, can prolong the service life of engine cranking motor.Simultaneously, this specific embodiment has also limited the condition of the starting of getting on the bus, and when avoiding non-power taking state, at the fire an engine of getting on the bus, causes the waste of resource.
Except the foregoing description, the engine starting gear of getting off also can comprise get off fire switch and controller, the neutral gear detecting device can be and change speed gear box gear bar bonded assembly position transduser, the neutral gear detecting device is electrically connected with controller, when getting off switch connection, controller can be according to the change speed gear box gear signal that receives, and on/off is connected with the engine starting end, i.e. the starting of fire an engine/interruption driving engine.
Certainly, controller is connected with the power taking detecting device, the signal of controller power taking according to whether, on/off is connected with the engine starting end.Therefore, use the control mode signal of controller also can realize purpose of the present invention, the embodiment that uses elements such as above-mentioned detector switch, relay is in practical operation, and is more easy, so preferably adopt.
The present invention also provides a kind of hoisting crane, comprise get off, get on the bus, driving engine, and the control system of fire an engine, described control system is the control system of the described hoisting crane starting of above-mentioned arbitrary embodiment.Because the control system of above-mentioned hoisting crane starting has above-mentioned technique effect, the hoisting crane with above-mentioned control system also has identical technique effect, does not give unnecessary details at this.
More than the control method and the control system of a kind of hoisting crane provided by the present invention and starting thereof is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. the control method of a hoisting crane starting is characterized in that, may further comprise the steps:
11) send the instruction of the fire an engine of getting off;
12) detecting with described driving engine bonded assembly change speed gear box whether be in neutral gear, is then to enter step 13); , then do not enter step 14);
13) fire an engine;
14) starting of interruption driving engine.
2. according to the control method of the described hoisting crane starting of claim 2, it is characterized in that between step 11) and step 12), having following steps:
110) detect the power taking state that whether is in, not, then enter step 12); Be then to enter step 14).
3. the control system of hoisting crane starting, the starting device of getting off that comprises change speed gear box, driving engine, the described driving engine of starting, it is characterized in that also comprise and detect the neutral gear detecting device whether described change speed gear box is in neutral gear, described neutral gear detecting device is connected with the described starting device of getting off; When described change speed gear box was in neutral gear, the described starting device of getting off connected the starting end of described driving engine.
4. the control system of hoisting crane starting according to claim 3, it is characterized in that, the described starting device of getting off comprises the extremely starting circuit of described engine starting end of the fire switch of getting off, power supply, described power supply, the described fire switch of getting off is controlled the break-make of described starting circuit, described neutral gear detecting device comprises according to described transmission neutral/non-neutral gear and the neutral gear detector switch of on/off, the described fire switch of getting off is connected and described neutral gear detector switch when connecting, and described starting circuit is connected.
5. control system according to claim 4 is characterized in that, described neutral gear detector switch is connected with the neutral gear relay, and during described neutral gear detector switch on/off, the contact of described neutral gear relay is in first conducting state/second conducting state; When described contact of getting off fire switch connection and described neutral gear relay was in first conducting state, described starting circuit was connected.
6. control system according to claim 5 is characterized in that, two contacts of the described fire switch of getting off, starting relay, described neutral gear relay are series in first close circuit in parallel with described starting circuit; Two contacts of described starting relay are series in the described starting circuit.
7. according to each described control system of claim 4 to 6, it is characterized in that, when described control system also is provided with power taking/non-power taking, the power taking detector switch of on/off; The described fire switch of getting off is connected, and described power taking detector switch disconnects, when described neutral gear detector switch is connected, described starting circuit is connected.
8. control system according to claim 7 is characterized in that, described power taking detector switch is connected with the power taking relay, and during described power taking detector switch on/off, the contact of described power taking relay is in first conducting state/second conducting state; The described fire switch of getting off is connected, and the contact of described power taking relay is in second conducting state, when described neutral gear detector switch is connected, described starting circuit is connected.
9. hoisting crane, comprise get off, get on the bus, driving engine, and the control system of starting described driving engine is characterized in that described control system is the control system of each described hoisting crane starting of claim 3 to 8.
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| CN113027629A (en) * | 2021-04-29 | 2021-06-25 | 安百拓（南京）建筑矿山设备有限公司 | Protection method, device and system for rapid movement of working arm of drill jumbo |
| CN113479775A (en) * | 2021-06-28 | 2021-10-08 | 杭州鸿泉物联网技术股份有限公司 | Crane hoisting identification method and system |
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| CN102225731B (en) | 2014-01-08 |
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