CN112483515A - Self-discharging vehicle lifting control circuit, device and self-discharging vehicle - Google Patents
Self-discharging vehicle lifting control circuit, device and self-discharging vehicle Download PDFInfo
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- CN112483515A CN112483515A CN202011432064.0A CN202011432064A CN112483515A CN 112483515 A CN112483515 A CN 112483515A CN 202011432064 A CN202011432064 A CN 202011432064A CN 112483515 A CN112483515 A CN 112483515A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/02—Auxiliary drives directly from an engine shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/02—Auxiliary drives directly from an engine shaft
- B60K2025/028—Auxiliary drives directly from an engine shaft by a pneumatic transmission
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
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- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Combustion & Propulsion (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
Abstract
The invention discloses a dump truck lifting control circuit, a dump truck lifting control device and a dump truck, and relates to the technical field of vehicles. The dump vehicle lift control system comprises: the lifting switch module comprises a lifting switch signal output end and a control module, wherein the lifting switch signal input end of the lifting switch module is connected with the lifting switch signal input end of the control module, the gas taking end of the control module is connected with the gas taking end of the chassis gas taking device, and the gas taking end of the control module is respectively connected with the gas inlet end of the power taking device and the gas inlet end of the gas control reversing valve. The lifting switch module receives a lifting trigger instruction, generates a lifting signal according to the lifting trigger instruction, sends the lifting signal to the control module, the control module receives the lifting signal, and conveys compressed gas to a power takeoff gas pipe of a power takeoff and a lifting gas pipe of a pneumatic control reversing valve according to the lifting signal so as to lift a carriage.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a lifting control circuit and device of a dump truck and the dump truck.
Background
The lifting control of the self-discharging vehicle is to use the power of the self-engine to drive (power takeoff) hydraulic lifting, incline the carriage to a certain angle for unloading, and reset the carriage by the self-weight of the carriage. The power takeoff is connected with an air source from the chassis air taking device, controls the opening and provides power; the lift control valve inside the cab distributes the air supply. At present, the control valve for lifting in the cab needs to take air from the chassis to access the cab rotary valve and control, and is connected to the cab through a long air pipe on the chassis, so that more interference points are easily caused due to more air taking pipelines of the chassis, and the air pipe needs to be connected to the control valve for lifting, so that the selection of the mounting position in the cab is difficult easily.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a lifting control circuit and device of a dump truck and the dump truck, and aims to solve the technical problems that in the prior art, a plurality of chassis gas taking pipelines are more, so that a plurality of interference points are easily caused, and a lifting control valve is required to be connected with a gas pipe, so that the internal installation of a cab is difficult easily.
To achieve the above object, the present invention provides a dump truck lift control circuit, comprising: the lifting switch module comprises a lifting switch signal output end of the lifting switch module and a control module, wherein the lifting switch signal input end of the control module is connected with a lifting switch signal output end of the lifting switch module, a gas taking end of the control module is connected with a gas conveying end of a chassis gas taking device, and the gas conveying end of the control module is respectively connected with a gas inlet end of a power takeoff and a gas inlet end of a gas control reversing valve;
the lifting switch module is used for receiving a lifting trigger instruction, generating a lifting signal according to the lifting trigger instruction and sending the lifting signal to the control module;
and the control module is used for receiving the lifting signal and conveying compressed gas to a power takeoff gas pipe of the power takeoff and a lifting gas pipe of the pneumatic control reversing valve according to the lifting signal so as to lift the carriage.
Optionally, the lifting control circuit of the dump truck further includes a slow-down switch module, and a descending switch signal output end of the slow-down switch module is connected to a descending switch signal input end of the control module;
the slow descending change-over switch module is used for receiving a descending trigger instruction, generating a descending signal according to the descending trigger instruction and sending the descending signal to the control module;
and the control module is used for receiving the descending signal and conveying the compressed gas to a descending gas pipe of the pneumatic control reversing valve according to the descending signal so as to descend the carriage.
Optionally, a slow-down switch signal output end of the slow-down change-over switch module is connected with a slow-down switch signal input end of the control module;
the slow descending selector switch module is also used for receiving a slow descending trigger instruction, generating a slow descending signal according to the slow descending trigger instruction and sending the slow descending signal to the control module;
and the control module is used for receiving the slow descending signal and conveying the compressed gas to a slow descending gas pipe of a pneumatic control reversing valve according to the slow descending signal so as to slowly descend the carriage.
Optionally, the lift switch module comprises a self-resetting switch;
and the lifting switch signal output end of the self-reset switch is connected with the lifting switch signal input end of the control module.
Optionally, the slow-down switch module includes a bilateral reset switch;
the descending switch signal output end of the bilateral reset switch is connected with the descending switch signal input end of the control module, and the slow descending switch signal output end of the bilateral reset switch is connected with the slow descending switch signal input end of the control module.
Optionally, the control module comprises a power take-off solenoid valve and a lift solenoid valve;
the lifting switch signal output end of the self-reset switch is respectively connected with the lifting switch signal input end of the power takeoff electromagnetic valve and the lifting switch signal input end of the lifting electromagnetic valve, the power takeoff air source output end of the power takeoff electromagnetic valve is connected with the power takeoff air pipe, and the lifting air source output end of the lifting electromagnetic valve is connected with the lifting air pipe.
Optionally, the control module comprises a descent solenoid valve;
the descending switch signal output end of the bilateral reset switch is connected with the descending switch signal input end of the descending electromagnetic valve, and the descending gas source output end of the descending electromagnetic valve is connected with the descending gas pipe.
Optionally, the control module comprises a slow-descent solenoid valve;
the slow-falling switch signal output end of the bilateral reset switch is connected with the slow-falling switch signal input end of the slow-falling electromagnetic valve, and the slow-falling air source output end of the slow-falling electromagnetic valve is connected with the slow-falling air pipe.
In addition, to achieve the above object, the present invention further provides a dump truck lifting control device, which includes the dump truck lifting control circuit as described above.
In addition, to achieve the above object, the present invention further provides a dump vehicle including the dump vehicle lift control device as described above.
The lifting switch signal output end of the lifting switch module is connected with the lifting switch signal input end of the control module, the gas taking end of the control module is connected with the gas conveying end of the chassis gas taking device, and the gas conveying end of the control module is respectively connected with the gas inlet end of the power takeoff and the gas inlet end of the gas control reversing valve. The lifting switch module receives a lifting trigger instruction, generates a lifting signal according to the lifting trigger instruction, sends the lifting signal to the control module, the control module receives the lifting signal, and conveys compressed gas to a power takeoff gas pipe of a power takeoff and a lifting gas pipe of a pneumatic control reversing valve according to the lifting signal so as to lift a carriage.
Drawings
FIG. 1 is a functional block diagram of a dump truck lift control circuit according to a first embodiment of the present invention;
FIG. 2 is a functional block diagram of a dump truck lift control circuit according to a second embodiment of the present invention;
fig. 3 is a circuit diagram of a lift control circuit of the dump truck according to the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a functional block diagram of a dump truck lift control circuit according to a first embodiment of the present invention.
The dump vehicle lift control system comprises: a lift switch module 100 and a control module 200.
The lifting switch signal output end of the lifting switch module 100 is connected with the lifting switch signal input end of the control module 200, the gas taking end of the control module 200 is connected with the gas output end of a chassis gas taking device (not shown in the figure), and the gas output end of the control module 200 is respectively connected with the gas inlet end of a power taking device (not shown in the figure) and the gas inlet end of a gas control reversing valve (not shown in the figure).
It should be noted that the control module can be an integrated circuit control device, the integration level of the control module is high, the assembly position is small, the control module can be assembled close to the pneumatic control reversing valve, and the problems of dragging, interference and the like of a chassis pipeline lifting air pipe are reduced. The control module is connected with the chassis air taking device through the air inlet pipe to obtain compressed air, and is connected with the power takeoff and the air control reversing valve through the air conveying pipe to perform lifting operation, and the control module is not limited in the embodiment.
It should be noted that the lifting switch module may be a single-pole single-throw ship-shaped switch, and the lifting switch module may also be a switch with one output, which may be selected according to the actual needs of the user in a specific application, which is not limited in this embodiment.
The lifting switch module 100 is configured to receive a lifting trigger instruction, generate a lifting signal according to the lifting trigger instruction, and send the lifting signal to the control module 200.
In this embodiment, a user turns on the lift switch, that is, a trigger command is given to the lift switch module, and after the lift switch is turned on, a lift signal is generated, where the lift signal may start the power takeoff and adjust the pneumatic control commutator to a lift state.
It can be understood that, when the dump truck is not unloading, the carriage is in the initial flat state, at this time, the lifting switch module is not triggered, the lifting switch module and the control module are in the non-working state, i.e., the vacant state, and the carriage is not lifted nor lowered, which is not limited in this embodiment.
And the control module 200 is configured to receive the lifting signal, and deliver compressed gas to a power takeoff gas pipe of the power takeoff and a lifting gas pipe of the pneumatic control reversing valve according to the lifting signal, so as to lift the carriage.
It can be understood that, after receiving the lifting signal, the control module may wake up the power takeoff and the pneumatic commutator to start the power takeoff and the pneumatic commutator and deliver compressed gas thereto, so that the power takeoff provides lifting power to the pneumatic commutator to lift the car for unloading, which is not limited in this embodiment.
It is easy to understand that when the user releases the lift switch, the lift switch is turned off, the lift switch module is not triggered, the lift switch module and the control module are in the idle state again, and the carriage is neither lifted nor lowered and stays at the position after the lift control, which is not limited in this embodiment.
In the embodiment, the lifting switch signal output end of the lifting switch module is connected with the lifting switch signal input end of the control module, the gas taking end of the control module is connected with the gas conveying end of the chassis gas taking device, and the gas conveying end of the control module is respectively connected with the gas inlet end of the power takeoff and the gas inlet end of the gas control reversing valve. The lifting switch module receives a lifting trigger instruction, generates a lifting signal according to the lifting trigger instruction, sends the lifting signal to the control module, the control module receives the lifting signal, and conveys compressed gas to a power takeoff gas pipe of a power takeoff and a lifting gas pipe of a pneumatic control reversing valve according to the lifting signal so as to lift a carriage.
Referring to fig. 2 and 3, fig. 2 is a schematic flow chart illustrating a second embodiment of a lifting control circuit of the dump truck according to the present invention; fig. 3 is a circuit diagram of a lift control circuit of the dump truck according to the present invention.
Further, based on the first embodiment, a second embodiment of the lift control circuit for the dump truck according to the present invention is provided.
In this embodiment, the lifting control circuit of the dump truck further includes a slow-down switch module 300, and a falling switch signal output end of the slow-down switch module 300 is connected to a falling switch signal input end of the control module 200.
It should be noted that, the addition of the slow-down switch module to the lifting control circuit of the dump truck can also control the lifted car to descend so as to quickly return the car from the unloading state to the original flat state, which is not limited in this embodiment.
The slow-descending switch module 300 is configured to receive a descending trigger instruction, generate a descending signal according to the descending trigger instruction, and send the descending signal to the control module 200.
It can be understood that, when the user switches the slow-descent switching switch to the descent mode and is in the on state, the user gives a descent trigger instruction to the slow-descent switching switch module, and after a descent line of the slow-descent switching switch is connected, a descent signal is generated, and the descent signal can adjust the pneumatic commutator to the descent state, which is not limited in this embodiment.
It can be understood that the slow-lowering switch module may be a single-pole double-throw ship-shaped switch, and the slow-lowering switch module may also be a switch with two outputs, which may be selected according to the actual needs of the user in a specific application, and one output of the slow-lowering switch module may be used for lowering control, which is not limited in this embodiment.
And the control module 200 is configured to receive the descending signal, and deliver compressed gas to a descending gas pipe of a pneumatic control reversing valve according to the descending signal, so as to descend the carriage.
It is easy to understand that, after receiving the descending signal, the control module starts the pneumatic control commutator and delivers compressed gas to the pneumatic control commutator, so that the pneumatic control commutator is adjusted to a descending state, the carriage descends, and the carriage is reset, which is not limited in this embodiment.
It is easy to understand that, when the user loosens the slow-descending switch, the slow-descending switch is turned off, the descending line is disconnected, the slow-descending switch module is not triggered, the slow-descending switch module and the control module are in the idle state again, the carriage is neither lifted nor descended, and stays at the position after the descending control, which is not limited in this embodiment.
In this embodiment, the slow-down switch signal output end of the slow-down switch module 300 is connected to the slow-down switch signal input end of the control module 200.
It should be noted that, the addition of the slow-descending selector switch module in the lifting control circuit of the dump truck can also control the lifted carriage to slowly descend. When still placing remaining goods in the carriage, the fast decline easily causes adverse effect such as damage or reveal to the goods, then can make the carriage resume to initial state of keeping flat with the steady speed from the discharge state through slowly falling the control, and the steady speed can set up according to user's actual demand, does not restrict in this embodiment.
The slow-descending selector switch module 300 is further configured to receive a slow-descending trigger instruction, generate a slow-descending signal according to the slow-descending trigger instruction, and send the slow-descending signal to the control module 200.
It can be understood that, when the user switches the slow-descent switch to the slow-descent mode and is in the on state, the user gives a slow-descent trigger instruction to the slow-descent switch module, and after a slow-descent line of the slow-descent switch is connected, a slow-descent signal is generated, and the slow-descent signal can adjust the pneumatic control commutator to the slow-descent state, which is not limited in this embodiment.
It can be understood that the slow-lowering switch module can be a single-pole double-throw ship-shaped switch, and the slow-lowering switch module can also be a switch with two paths of outputs, and can be selected according to the actual requirements of users in specific applications, one path of output of the slow-lowering switch module can be used for lowering control, and the other path of output can be used for lowering control. When the self-dumping truck lifting control circuit does not need the slow-descending function, the slow-descending line can be kept in the open-circuit state all the time, which is not limited in this embodiment.
And the control module 200 is used for receiving the slow descending signal and conveying the compressed gas to a slow descending gas pipe of a pneumatic control reversing valve according to the slow descending signal so as to slowly descend the carriage.
It is easy to understand that, after receiving the slow descending signal, the control module starts the pneumatic control commutator and delivers compressed gas to the pneumatic control commutator, so that the pneumatic control commutator is adjusted to a slow descending state, and the carriage slowly descends at a slow speed to complete carriage resetting, which is not limited in this embodiment.
It is easy to understand that, when the user loosens the slow-descending switch, the slow-descending switch is turned off, the slow-descending line is disconnected, the slow-descending switch module is not triggered, the slow-descending switch module and the control module are in the idle state again, the carriage is neither lifted nor descended, and stays at the position after the slow-descending control, which is not limited in this embodiment.
In this embodiment, the signal output terminal of the self-reset switch is connected to the signal input terminal of the control module 200.
It should be noted that the self-reset switch may be a switch capable of automatically resetting, and after the self-reset switch is triggered by a user to press or push, the self-reset switch may be turned on by a line where the self-reset switch is located, so as to perform subsequent operations. When the user does not perform any more trigger operations such as pressing or pushing, the self-reset switch can automatically return to the state before triggering, so as to automatically disconnect the connection line and stop the subsequent operations.
It is easy to understand that in this embodiment, the self-reset switch is composed of B + and 1 channel, a user makes the self-reset switch in the on state, that is, a trigger command is given to the self-reset switch, and a lift signal is generated after the self-reset switch is closed, which is not limited in this embodiment.
It can be understood that when the user releases the self-reset switch, the self-reset switch is turned off, and the control module is in the idle state again, the carriage is neither lifted nor lowered, and stays at the position after the lifting control, which is not limited in the embodiment.
In this embodiment, the slow down switch 300 module includes a double-sided reset switch.
The descending switch signal output end of the bilateral reset switch is connected with the descending switch signal input end of the control module, and the slow descending switch signal output end of the bilateral reset switch is connected with the slow descending switch signal input end of the control module.
It should be noted that the bilateral reset switch may be a switch capable of automatically resetting, and the bilateral reset switch has two ends, which cannot be triggered simultaneously, but can realize automatic resetting after any one end is triggered. Any end of the bilateral reset switch can be connected with a circuit where the bilateral reset switch is located after being triggered by pressing or pushing by a user for subsequent operation. When the user does not perform the triggering operation such as pressing or pushing, the triggering end can automatically return to the state before triggering, so as to automatically disconnect the connection line, so as to stop the subsequent operation.
It is easy to understand that one end of the double-side reset switch can be set as a descending end for descending the carriage, and the other end can be set as a slow descending end for slowly descending the carriage. In the implementation, the bilateral reset switch is composed of channels B + and 2 when realizing the descending function, and is composed of channels B + and 3 when realizing the slow descending function. A user makes the falling end of the bilateral reset switch in a connected state, that is, a falling trigger instruction is given to the bilateral reset switch, and a falling signal is generated after a falling line of the bilateral reset switch is connected, which is not limited in this embodiment.
It can be understood that, when the user releases the descending end of the bilateral reset switch, the bilateral reset switch is turned off, and the control module is in the vacant state again, so that the carriage is neither lifted nor descended, and stays at the position after the descending control, which is not limited in this embodiment.
It can be understood that, when a user makes the slow-falling end of the dual-side reset switch in the on state, a slow-falling trigger instruction is given to the dual-side reset switch, and a falling signal is generated after the slow-falling line of the dual-side reset switch is connected, which is not limited in this embodiment.
It can be understood that when a user loosens the slow descending end of the double-side reset switch, the double-side reset switch is turned off, meanwhile, the control module is in the vacancy state again, and the carriage is neither lifted nor descended and stays at the position after being controlled by slow descending. When the self-dumping vehicle lifting control circuit does not need the slow-down function, the slow-down end of the double-side reset switch can be always kept in the open-circuit state, which is not limited in this embodiment.
In this embodiment, the control module 200 includes a power take off solenoid 201 and a lift solenoid 202.
It should be noted that the solenoid valve is a tool for controlling industrial equipment by electromagnetic force, belongs to an automatic actuator for controlling fluid, and is not limited to controlling hydraulic pressure or pneumatic pressure. The solenoid valve may be comprised of a solenoid and a core, and may have a valve body with one or more holes, and when the solenoid is energized or de-energized, the operation of the core will cause fluid to pass through the valve body or be cut off, thereby achieving the purpose of changing the direction of the fluid, which is not limited in this embodiment.
It will be appreciated that the power take-off solenoid can be actuated to close or open the passage between the control module and the power take-off to deliver gas from the power take-off air line to the power take-off when the power take-off solenoid opens the passage between the control module and the power take-off. The lifting electromagnetic valve can enable the pneumatic control reversing valve to be started or closed, a lifting channel between the control module and the pneumatic control reversing valve is opened through the lifting electromagnetic valve, and gas is conveyed to the pneumatic control reversing valve from a lifting gas pipe. The power takeoff solenoid valve and the lifting solenoid valve can be replaced by one solenoid valve to achieve the same function, which is not limited in this embodiment.
It is understood that, in fig. 3, the X ends are air release ports, P is an air intake port of the control module, a is an air outlet port of the power take-off solenoid valve, and B is an air outlet port of the lift solenoid valve, which is not limited in this embodiment.
The lifting switch signal output end of the self-reset switch is respectively connected with the lifting switch signal input end of the power takeoff electromagnetic valve 201 and the lifting switch signal input end of the lifting electromagnetic valve 202, the power takeoff air source output end of the power takeoff electromagnetic valve 201 is connected with the power takeoff air pipe, and the lifting air source output end of the lifting electromagnetic valve 202 is connected with the lifting air pipe.
It is easy to understand that, after the power takeoff solenoid valve and the lifting solenoid valve receive the lifting signal, the power takeoff solenoid valve and the lifting solenoid valve can enable fluid in the valve body to pass through, and wake up the power takeoff and the pneumatic control commutator, so that the power takeoff and the pneumatic control commutator are started, and the power takeoff provides lifting power for the pneumatic control commutator, so as to lift the carriage for unloading.
It can be understood that when the user releases the self-reset switch, the reset switch is turned off, no fluid passes through the power takeoff solenoid valve and the valve body of the lifting solenoid valve, the carriage does not lift or descend, and stays at the position after the lifting control, which is not limited in this embodiment.
In this embodiment, the control module 200 further includes a descent solenoid valve 203.
It can be understood that the descending electromagnetic valve can start or close the pneumatic control reversing valve, and open a descending channel from the control module to the pneumatic control reversing valve through the descending electromagnetic valve, so as to convey gas from the descending gas pipe to the pneumatic control reversing valve, where C in fig. 3 is a gas outlet of the descending electromagnetic valve, which is not limited in this embodiment.
The descending switch signal output end of the bilateral reset switch is connected with the descending switch signal input end of the descending electromagnetic valve 203, and the descending air source output end of the descending electromagnetic valve 203 is connected with the descending air pipe.
It is easy to understand that after the descending solenoid valve receives the descending signal, the descending solenoid valve can make the fluid in the valve body pass through, and awaken the pneumatic control commutator, so that the pneumatic control commutator is started, so that the pneumatic control commutator is adjusted to the descending state, the carriage descends, and the carriage is reset, which is not limited in this embodiment.
It can be understood that when the user releases the double-sided reset switch, the descending end of the double-sided reset switch is turned off, no fluid passes through the valve body of the descending solenoid valve, and the carriage does not lift or descend and stays at the position after the descending control, which is not limited in this embodiment.
In this embodiment, the control module 200 further includes a slow descent solenoid valve 204.
It can be understood that the slow descending electromagnetic valve can start or close the pneumatic control directional valve, and open a slow descending channel from the control module to the pneumatic control directional valve through the slow descending electromagnetic valve, so as to convey gas from the slow descending gas pipe to the pneumatic control directional valve, where D in fig. 3 is a gas outlet of the slow descending electromagnetic valve, which is not limited in this embodiment.
The signal output end of a slow-falling switch of the bilateral reset switch is connected with the signal input end of the slow-falling switch of the slow-falling electromagnetic valve 204, and the output end of a slow-falling gas source of the slow-falling electromagnetic valve 204 is connected with the slow-falling gas pipe.
It is easy to understand that after the slow descending electromagnetic valve receives the slow descending signal, the slow descending electromagnetic valve can enable fluid in the valve body to pass through, and awaken the pneumatic control commutator, so that the pneumatic control commutator is started, so that the pneumatic control commutator is adjusted to a slow descending state, the carriage descends, and the carriage is reset, which is not limited in this embodiment.
It can be understood that, when the user releases the double-sided reset switch, the slow-falling end of the double-sided reset switch is turned off, no fluid passes through the valve body of the descending electromagnetic valve, and the carriage does not lift or descend and stays at the position after the slow-falling control, which is not limited in this embodiment.
In the embodiment, the descending switch signal output end of the slow descending switch module is connected with the descending switch signal input end of the control module, the slow descending switch signal output end of the slow descending switch module is connected with the slow descending switch signal input end of the control module, the slow descending switch module receives a descending or triggering trigger instruction and can generate a corresponding descending signal or slow descending signal, the control module transmits compressed gas to a descending or slow descending gas pipe corresponding to an air control reversing valve according to the descending signal or slow descending signal so as to correspondingly descend or slowly descend a carriage, and the use function of the lifting device is increased, in the embodiment, the self-reset switch and the double-side reset switch enable three functions of lifting, descending and slow descending to be realized by adopting two simple switch devices, so that the operation is simple and convenient, and in the embodiment, the power takeoff electromagnetic valve, the lifting electromagnetic valve, the descending electromagnetic valve and the slow descending electromagnetic valve enhance the control force of the whole device, the interference of the air pipe is reduced, and the later maintenance and modification are convenient.
In addition, in order to achieve the above object, the present invention further provides a dump truck lifting control device, which includes the dump truck lifting control circuit as described above.
Since the lifting control device for the dump truck adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
In order to achieve the above object, the present invention further provides a dump vehicle including the dump vehicle lifting control device.
Since the dump vehicle adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A dump vehicle lift control circuit, the dump vehicle lift control system comprising: the lifting switch module comprises a lifting switch signal output end of the lifting switch module and a control module, wherein the lifting switch signal input end of the control module is connected with a lifting switch signal output end of the lifting switch module, a gas taking end of the control module is connected with a gas conveying end of a chassis gas taking device, and the gas conveying end of the control module is respectively connected with a gas inlet end of a power takeoff and a gas inlet end of a gas control reversing valve;
the lifting switch module is used for receiving a lifting trigger instruction, generating a lifting signal according to the lifting trigger instruction and sending the lifting signal to the control module;
and the control module is used for receiving the lifting signal and conveying compressed gas to a power takeoff gas pipe of the power takeoff and a lifting gas pipe of the pneumatic control reversing valve according to the lifting signal so as to lift the carriage.
2. The dump vehicle lift control circuit of claim 1, wherein the dump vehicle lift control circuit further comprises a slow down switch module, a down switch signal output of the slow down switch module being connected to a down switch signal input of the control module;
the slow descending change-over switch module is used for receiving a descending trigger instruction, generating a descending signal according to the descending trigger instruction and sending the descending signal to the control module;
and the control module is used for receiving the descending signal and conveying the compressed gas to a descending gas pipe of the pneumatic control reversing valve according to the descending signal so as to descend the carriage.
3. The dump vehicle lift control circuit of claim 2 wherein the slow down switch signal output of said slow down diverter switch module is connected to the slow down switch signal input of said control module;
the slow descending selector switch module is also used for receiving a slow descending trigger instruction, generating a slow descending signal according to the slow descending trigger instruction and sending the slow descending signal to the control module;
and the control module is used for receiving the slow descending signal and conveying the compressed gas to a slow descending gas pipe of a pneumatic control reversing valve according to the slow descending signal so as to slowly descend the carriage.
4. The dump vehicle lift control circuit of claim 1, wherein the lift switch module comprises a self-resetting switch;
and the lifting switch signal output end of the self-reset switch is connected with the lifting switch signal input end of the control module.
5. The dump vehicle lift control circuit of claim 4 wherein said control module comprises a power take off solenoid and a lift solenoid;
the lifting switch signal output end of the self-reset switch is respectively connected with the lifting switch signal input end of the power takeoff electromagnetic valve and the lifting switch signal input end of the lifting electromagnetic valve, the power takeoff air source output end of the power takeoff electromagnetic valve is connected with the power takeoff air pipe, and the lifting air source output end of the lifting electromagnetic valve is connected with the lifting air pipe.
6. The dump vehicle lift control circuit of claim 1 wherein said slow down diverter switch module comprises a double sided reset switch;
the descending switch signal output end of the bilateral reset switch is connected with the descending switch signal input end of the control module, and the slow descending switch signal output end of the bilateral reset switch is connected with the slow descending switch signal input end of the control module.
7. The dump vehicle lift control circuit of claim 6 wherein said control module comprises a descent solenoid valve;
the descending switch signal output end of the bilateral reset switch is connected with the descending switch signal input end of the descending electromagnetic valve, and the descending gas source output end of the descending electromagnetic valve is connected with the descending gas pipe.
8. The dump vehicle lift control circuit of claim 6 wherein said control module comprises a slow descent solenoid valve;
the slow-falling switch signal output end of the bilateral reset switch is connected with the slow-falling switch signal input end of the slow-falling electromagnetic valve, and the slow-falling air source output end of the slow-falling electromagnetic valve is connected with the slow-falling air pipe.
9. A dump truck lift control device, characterized in that the dump truck lift control device comprises the dump truck lift control circuit according to any one of claims 1 to 8.
10. A dump vehicle characterized in that the dump vehicle protection comprises the dump vehicle lift control device of claim 9.
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| CN202011432064.0A CN112483515A (en) | 2020-12-08 | 2020-12-08 | Self-discharging vehicle lifting control circuit, device and self-discharging vehicle |
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| CN202011432064.0A CN112483515A (en) | 2020-12-08 | 2020-12-08 | Self-discharging vehicle lifting control circuit, device and self-discharging vehicle |
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| CN112483515A true CN112483515A (en) | 2021-03-12 |
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| CN202011432064.0A Pending CN112483515A (en) | 2020-12-08 | 2020-12-08 | Self-discharging vehicle lifting control circuit, device and self-discharging vehicle |
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