CN112455309A - Lock hook misoperation prevention control circuit and device for dump truck and dump truck - Google Patents
Lock hook misoperation prevention control circuit and device for dump truck and dump truck Download PDFInfo
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- CN112455309A CN112455309A CN202011432065.5A CN202011432065A CN112455309A CN 112455309 A CN112455309 A CN 112455309A CN 202011432065 A CN202011432065 A CN 202011432065A CN 112455309 A CN112455309 A CN 112455309A
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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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- 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
- B60P1/003—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading vehicles with loading gates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/02—Platforms; Open load compartments
- B62D33/023—Sideboard or tailgate structures
- B62D33/027—Sideboard or tailgate structures movable
- B62D33/037—Latching means therefor
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Abstract
The invention discloses a latch hook misoperation prevention control circuit and device for a dump truck and the dump truck, and relates to the technical field of vehicles. The self-discharging vehicle prevents latch hook maloperation control circuit includes: the self-discharging vehicle comprises a lock hook travel switch module, a buzzer and a control module, wherein the lock hook travel switch module receives lifting signals, a closing signal is generated according to the lifting signals when a lock hook is in a working state, the closing signal is sent to the control module, the control module receives the closing signal, the carriage lifting is stopped according to the closing signal, the lock hook travel switch module generates an alarm signal according to the lifting signals when the lock hook is in the working state, the alarm signal is sent to the buzzer, the buzzer receives the alarm signal, the alarm is carried out according to the alarm signal when the lock hook is operated mistakenly, the carriage lifting is automatically stopped when unloading of the lock hook is realized, the accident that a carriage back door is damaged or the whole vehicle is overturned is avoided, and the buzzer alarms can remind a user of timely troubleshooting.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a latch hook misoperation prevention control circuit and device for a dump truck and the dump truck.
Background
The self-unloading vehicle is a special vehicle which uses the power of the self-engine to drive hydraulic lifting, inclines the carriage to a certain angle for unloading and resets the carriage by the self-weight of the carriage. At present, most of the rear doors of the dump trucks on the market are formed by an automatic locking mechanism and a locking latch hook, and the locking latch hook plays a role in safety and prevents the automatic locking mechanism from being used safely when the automatic locking mechanism breaks down. The latch hook needs the user to unload the latch hook when unloading, just can normally unload. However, when a user forgets to unload the latch hook, the rear door of the carriage cannot be normally opened when the carriage is lifted, so that the rear door of the carriage is easily damaged or the whole vehicle is easily overturned.
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 latch hook misoperation prevention control circuit and device for a dump truck and the dump truck, and aims to solve the technical problems that in the prior art, when a user forgets to unload a latch hook, a rear door of a carriage cannot be normally opened during lifting, and the rear door of the carriage is easily damaged or the whole truck is easily overturned.
In order to achieve the above object, the present invention provides a latch hook misoperation prevention control circuit for a dump truck, the latch hook misoperation prevention control circuit for the dump truck comprising: the alarm device comprises a lock hook travel switch module, a buzzer and a control module, wherein a switch signal output end of the lock hook travel switch module is connected with a switch signal input end of the control module, an alarm signal output end of the lock hook travel switch module is connected with an alarm signal input end of the buzzer, 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 taking device and a gas inlet end of a gas control reversing valve;
the locking hook travel switch module is used for receiving a lifting signal, generating a closing signal according to the lifting signal when the locking hook is in a working state, and sending the closing signal to the control module;
the control module is used for receiving the closing signal and controlling the carriage to lift and stop according to the closing signal;
the locking hook travel switch module is also used for generating an alarm signal according to the lifting signal when the locking hook is in a working state and sending the alarm signal to the buzzer;
and the buzzer is used for receiving the alarm signal and alarming the misoperation of the lock hook according to the alarm signal.
Optionally, the dump truck lock hook misoperation prevention control circuit further comprises a lifting switch module, and a lifting switch signal output end of the lifting switch module is connected with a lifting switch signal input end of the lock hook travel switch module;
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 latch hook travel switch module.
Optionally, the dump truck locking hook misoperation prevention control circuit further comprises a limiter, and a closing signal output end of the limiter is connected with a closing signal input end of the control module;
the limiter is used for generating a closing signal when the inclination angle of the carriage reaches a preset inclination angle and sending the closing signal to the control module;
and the control module is also used for receiving the closing signal and stopping conveying the 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 closing signal so as to stop lifting the carriage.
Optionally, the dump vehicle locking hook misoperation prevention control circuit further comprises a descending switch module and a slow descending switch module;
the descending switch module is characterized in that a descending switch signal output end of the descending switch module is connected with a descending switch signal input end of the control module, and a slow descending switch signal output end of the slow descending switch module is connected with a slow descending switch signal input end of the control module.
Optionally, the control module comprises a lift and power takeoff solenoid valve;
and the switch signal output end of the lock hook travel switch module is connected with the switch signal input end of the lifting and power takeoff electromagnetic valve.
Optionally, the control module further comprises a limit valve solenoid valve;
the air source output end of the lifting and power takeoff electromagnetic valve is connected with the air source input end of the limit valve electromagnetic valve, the closing signal output end of the limiter is connected with the closing signal input end of the limit valve electromagnetic valve, the power takeoff air source output end of the limit valve electromagnetic valve is connected with the power takeoff air pipe, and the lifting air source output end of the limit valve electromagnetic valve is connected with the lifting air pipe.
Optionally, the control module further comprises a lowering solenoid valve;
and the descending gas source output end of the descending electromagnetic valve is connected with a descending gas pipe of the pneumatic control reversing valve.
Optionally, the control module further comprises a slow-descending electromagnetic valve;
the slow-descending switch module is characterized in that a slow-descending switch signal output end of the slow-descending switch module is connected with a slow-descending switch signal input end of the slow-descending electromagnetic valve, and a slow-descending air source output end of the slow-descending electromagnetic valve is connected with a slow-descending air pipe of the pneumatic control reversing valve.
In addition, in order to achieve the above object, the present invention further provides a dump truck latch hook misoperation prevention control device, which includes the dump truck latch hook misoperation prevention control circuit as described above.
In order to achieve the above object, the present invention also provides a dump vehicle including the latch malfunction prevention control device for a dump vehicle as described above.
According to the invention, the switch signal output end of the lock hook travel switch module is connected with the switch signal input end of the control module, the alarm signal output end of the lock hook travel switch module is connected with the alarm signal input end of the buzzer, the air intake end of the control module is connected with the air intake end of the chassis air intake device, and the air intake end of the control module is respectively connected with the air intake end of the power takeoff and the air intake end of the air control reversing valve. The lifting signal is received by the lock hook travel switch module, a closing signal is generated according to the lifting signal when the lock hook is in a working state, the closing signal is sent to the control module, the control module receives the closing signal, the carriage lifting stop is controlled according to the closing signal, the alarm signal is generated by the lock hook travel switch module according to the lifting signal when the lock hook is in the working state, the alarm signal is sent to the buzzer, the buzzer receives the alarm signal, the alarm is given out according to the alarm signal when the lock hook is in a misoperation state, when the lock hook is unloaded, the carriage lifting automatic stop is realized, the accident that a carriage back door is damaged or the whole vehicle is overturned is avoided, and the buzzer alarms can remind a user of timely troubleshooting, so that the working efficiency of.
Drawings
Fig. 1 is a functional block diagram of a locking hook misoperation prevention control circuit of a dump vehicle according to a first embodiment of the present invention;
fig. 2 is a functional block diagram of a locking hook misoperation prevention control circuit of the dump vehicle according to a second embodiment of the present invention;
fig. 3 is a circuit diagram of the anti-misoperation control circuit of the dump truck latch hook 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 module schematic diagram of a dump truck latch hook misoperation prevention control circuit according to a first embodiment of the invention.
The self-discharging vehicle prevents latch hook maloperation control circuit includes: latch hook travel switch module 100, bee calling organ 300 and control module 200, the switching signal output of latch hook travel switch module 100 with control module 200's switching signal input end is connected, latch hook travel switch module 100's alarm signal output with bee calling organ 300's alarm signal input end is connected, control module 200's the end of getting gas is connected with chassis gas taking device (not shown in the figure) gas output end, control module 200's the gas output end is connected with the inlet end of power takeoff (not shown in the figure) and the inlet end of gas accuse switching-over valve (not shown in the figure) respectively.
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 latch hook travel switch module may be a travel switch, which is also called a limit switch, and is a commonly used small current master control electrical appliance. In the implementation, the latch hook travel switch module can judge whether the latch hook works by judging whether the latch hook pushes the contact of the travel switch, and the embodiment is not limited.
The locking hook travel switch module 100 is configured to receive a lifting signal, generate a closing signal according to the lifting signal when the locking hook is in a working state, and send the closing signal to the control module 200.
In this embodiment, the latch hook stroke switch module pushes the stroke switch contact according to the latch hook, so that the switch is compressed, and it can be determined that the latch hook is in the working state at this time, that is, the latch hook is not unloaded or there is another misoperation, if the latch hook stroke switch module also receives a lifting signal at the same time, this indicates that the car is lifted and the latch hook is in the misoperation, the car and the dump truck are both in a dangerous state, and the latch hook stroke switch module needs to stop lifting the car, so as to generate a closing signal, so that the control module performs stop control, which is not limited in this embodiment.
In specific implementation, the latch hook travel switch module may include a left switch and a right switch, and the left switch may determine whether the left latch hook operates, and the right switch may determine whether the right latch hook operates. When the latch hook corresponding to at least one switch in the left switch and the right switch of the latch hook travel switch module works, the latch hook travel switch module generates a closing signal when receiving a lifting signal, and the embodiment is not limited.
It can be understood that, the latch hook travel switch module does not push the travel switch contact according to the left and right latch hooks, the switch is in a free state, it can be judged that the left and right latch hooks are in a non-working state at the moment, that is, the left and right latch hooks are unloaded or other misoperation does not exist, if the latch hook travel switch module also receives a lifting signal at the same time, it indicates that the carriage is lifted and the left and right latch hooks are not operated correctly, the carriage and the dump truck are both in a normal working state, and the latch hook travel switch module can send the lifting signal to the control module, so that the control module performs lifting control, and the.
And the control module 200 is configured to receive the closing signal and control the car to stop lifting according to the closing signal.
It can be understood that, after the control module receives the closing signal, the control module does not perform lifting control, so that the carriage is not lifted, and the safety of the carriage, the dump truck and the user is ensured, which is not limited in this embodiment.
The locking hook travel switch module 100 is further configured to generate an alarm signal according to the lifting signal when the locking hook is in the working state, and send the alarm signal to the buzzer 300.
And the buzzer 300 is used for receiving the alarm signal and alarming the misoperation of the lock hook according to the alarm signal.
It should be noted that, when the carriage is not lifted and the left and right latch hooks are not operated, the carriage is in an initial flat state, and the latch hook travel switch module does not control the buzzer to alarm. When the carriage is not lifted and the left and right lock hooks work, the carriage is still in an initial flat state, the buzzer is not controlled by the lock hook travel switch module to give an alarm, and the embodiment is not limited.
It is easy to understand that, when the carriage lifts and at least one during operation in the left and right latch hook, the latch hook travel switch module can judge this moment carriage lifts and will take place the accident, and latch hook travel switch module generates alarm signal to control buzzer warning, thereby make the user of service carry out troubleshooting, improve dump vehicle work efficiency, this embodiment does not put the restriction.
In the embodiment, the switch signal output end of the lock hook travel switch module is connected with the switch signal input end of the control module, the alarm signal output end of the lock hook travel switch module is connected with the alarm signal input end of the buzzer, the air taking end of the control module is connected with the air conveying end of the chassis air taking device, and the air conveying end of the control module is respectively connected with the air inlet end of the power taking device and the air inlet end of the air control reversing valve. The lifting signal is received by the lock hook travel switch module, a closing signal is generated according to the lifting signal when the lock hook is in a working state, the closing signal is sent to the control module, the control module receives the closing signal, the carriage lifting stop is controlled according to the closing signal, the alarm signal is generated by the lock hook travel switch module according to the lifting signal when the lock hook is in the working state, the alarm signal is sent to the buzzer, the buzzer receives the alarm signal, the alarm is given out according to the alarm signal when the lock hook is in a misoperation state, when the lock hook is unloaded, the carriage lifting automatic stop is realized, the accident that a carriage back door is damaged or the whole vehicle is overturned is avoided, and the buzzer alarms can remind a user of timely troubleshooting, so that the working efficiency of.
Referring to fig. 2 and 3, fig. 2 is a schematic flow chart illustrating a locking hook misoperation prevention control circuit of the dump truck according to a second embodiment of the present invention; fig. 3 is a circuit diagram of the anti-misoperation control circuit of the dump truck latch hook according to the present invention.
Further, based on the first embodiment, a second embodiment of the latch hook misoperation prevention control circuit for the dump vehicle according to the present invention is provided.
In this embodiment, the dump truck lock hook misoperation prevention control circuit further includes a lifting switch module 400, and a lifting switch signal output end of the lifting switch module 400 is connected to a lifting switch signal input end of the lock hook travel switch module 100.
It should be noted that the lifting switch module may be a single-pole single-throw 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 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 latch hook travel switch module.
It can be understood that, a user makes the lifting switch in the on state, that is, a trigger instruction is given to the lifting switch module, a lifting signal is generated after the lifting switch is closed, and the lifting switch module sends the lifting signal to the latch hook travel switch module, so that the latch hook travel switch module further determines whether lifting control can be performed, which is not limited in this embodiment.
In this embodiment, the anti-lock hook misoperation control circuit of the dump truck further includes a stopper 500, and a closing signal output end of the stopper 500 is connected to a closing signal input end of the control module.
It should be noted that, the stopper is a safety device for protecting the machine and its user, and in practical application, if the lifting angle is too small, the goods in the carriage cannot be dumped, and if the lifting angle is too large, the whole vehicle has a risk of overturning when the whole vehicle has inclined goods. The anti-locking hook misoperation control circuit of the dump truck can control the angle of the container at a fixed value through the limiter, so that the lifting function is optimized, the safety performance of the dump truck is improved, and the embodiment is not limited.
The stopper 500 is configured to generate a closing signal when the car inclination reaches a preset inclination, and send the closing signal to the control module 200.
It is easily understood that the preset inclination angle can enable goods in the carriage to be convenient for dumping and the whole vehicle still is in the inclination angle of the safe state, the preset inclination angle can also be set according to the actual requirements of users, and the embodiment is not limited.
And the control module 200 is further configured to receive the closing signal, and stop delivering the 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 closing signal, so as to stop lifting the carriage.
It is easy to understand that, after receiving the closing signal, the control module may stop waking up the power takeoff and the pneumatic commutator to close the power takeoff and the pneumatic commutator, and stop delivering the compressed gas to the power takeoff and the pneumatic commutator, so as to stop the car from lifting at the position corresponding to the preset inclination angle, which is not limited in this embodiment.
In this embodiment, the anti-latch hook misoperation control circuit for the dump truck further includes a descending switch module 600 and a slow descending switch module 700.
It should be noted that, a descending switch module is added to the lifting control circuit of the dump truck to control the lifted carriage to descend, so that the carriage is quickly restored to the original flat state from the unloading state. This embodiment is not limited.
It should be noted that, the slowly-descending switch module added 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 descending switch signal output end of the descending switch module 600 is connected with the descending switch signal input end of the control module 200, and the slow descending switch signal output end of the slow descending switch module 700 is connected with the slow descending switch signal input end of the control module 200.
It can be understood that when a user makes the descending switch module in the on state, it is equivalent to that the user gives the descending trigger instruction to the descending switch module, and after the descending switch module is turned on, a descending signal is generated, and the descending signal can adjust the pneumatic control commutator to the descending state, which is not limited in this embodiment.
It can be understood that the descending switch module may be a single-pole single-throw switch, and the descending switch module may also be a switch having one output, which may be selected according to the actual requirement of the user in a specific application, and one output of the descending switch module may perform descending control, which is not limited in this embodiment.
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 releases the descending switch, the descending switch is turned off, the descending line is disconnected, the descending switch module is not triggered, the 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.
It can be understood that when a user makes the slow-falling switch module in the on state, the user gives a slow-falling trigger instruction to the slow-falling switch module, and after the slow-falling switch module is turned on, a slow-falling signal is generated, and the slow-falling signal can adjust the pneumatic control commutator to the slow-falling state, which is not limited in this embodiment.
It can be understood that the slow-falling switch module can be a single-pole single-throw switch, the slow-falling switch module can also be a switch with one output, the slow-falling switch module can be selected according to the actual requirement of a user in specific application, and the one output of the slow-falling switch module can be controlled to be slowly fallen. 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.
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 the present embodiment, the control module 200 includes a lift and power take-off solenoid valve 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 lift and power take-off solenoid valve may cause the power take-off to be opened or closed, and when the power take-off solenoid valve opens a passage from the control module to the power take-off, gas is delivered from the power take-off gas line to the power take-off. Meanwhile, the lifting and power takeoff electromagnetic valve can also enable the air control reversing valve to be started or closed, a lifting channel from the control module to the air control reversing valve is opened through the lifting electromagnetic valve, and gas is conveyed to the air control reversing valve from a lifting gas pipe. The lift and power takeoff solenoid valve may also be replaced by a power takeoff solenoid valve and a lift 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, and P is an air intake port of the control module, which is not limited in this embodiment.
The switch signal output end of the latch hook travel switch module 100 is connected with the switch signal input end of the lifting and power takeoff electromagnetic valve 202.
It is easy to understand that, after the lifting and power takeoff electromagnetic valve receives the lifting signal, the lifting and power takeoff electromagnetic valve can make the fluid in the valve body pass through, and awaken the power takeoff and the pneumatic commutator, so that the power takeoff and the pneumatic commutator are started, and the power takeoff provides lifting power for the pneumatic commutator, so as to lift the carriage for unloading.
It can be understood that when the latch hook stroke switch module outputs a closing signal, no fluid passes through the valve body of the lifting and power takeoff solenoid valve, and the carriage is not lifted, which is not limited in this embodiment.
In this embodiment, the control module 200 includes a limit valve solenoid valve 201.
It can be understood that the limiting valve solenoid valve can control the output of the power takeoff and the lifting air source, and control the lifting angle of the hydraulic cylinder, so as to achieve the limitation of the carriage angle, in fig. 3, a is the output port of the power takeoff air source, and B is the output port of the lifting air source, which is not limited in this embodiment.
The air source output end of the lifting and power takeoff electromagnetic valve 202 is connected with the air source input end of the limit valve electromagnetic valve 201, the closing signal output end of the limiter 500 is connected with the closing signal input end of the limit valve electromagnetic valve 201, the power takeoff air source output end of the limit valve electromagnetic valve 201 is connected with the power takeoff air pipe, and the lifting air source output end of the limit valve electromagnetic valve 201 is connected with the lifting air pipe.
It is easy to understand that when the lifting and power takeoff solenoid valve is switched on and the limit valve solenoid valve works, the air source passes through the lifting and power takeoff solenoid valve but cannot pass through the limit valve solenoid valve, a and B have no air source output, the power takeoff and the lifting do not work, and the carriage stops lifting, 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 descending switch module 600 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 of the pneumatic control reversing valve.
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 descending switch module, the descending switch module is turned off, no fluid passes through the valve body of the descending solenoid valve, and 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 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 slow-descending switch signal output end of the slow-descending switch module 700 is connected with the slow-descending switch signal input end of the slow-descending electromagnetic valve 204, and the slow-descending air source output end of the slow-descending electromagnetic valve 204 is connected with the slow-descending air pipe of the pneumatic control reversing valve.
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 slow-descent switch module, the slow-descent switch module is turned off, no fluid passes through the valve body of the descent solenoid valve, and the carriage is neither lifted nor descended and stays at the position after the slow-descent 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 latch hook travel switch module, the closing signal output end of the stopper is connected with the closing signal input end of the control module, 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 latch hook travel switch module, the stopper generates a closing signal when the inclination angle of the carriage reaches a preset inclination angle, sends the closing signal to the control module, the control module receives the closing signal, stops conveying compressed gas to a power takeoff gas pipe of the power takeoff and a lifting gas pipe of a pneumatic control reversing valve according to the closing signal so as to stop lifting the carriage, controls the angle of the carriage to be a fixed value so as to optimize the lifting function and improve the safety performance of the dump truck, and the descending switch signal output end of the descending switch module is connected with the descending switch signal input end of the control, the slow-falling switch signal output end of the slow-falling switch module is connected with the slow-falling switch signal input end of the control module, the control module conveys compressed gas to a descending or slow-falling gas pipe corresponding to the pneumatic control reversing valve according to a descending signal or a slow-falling signal, so that the carriage correspondingly descends or slowly descends, the use function of the anti-misoperation control device for the locking hook is increased, the control force of the whole device is enhanced by the lifting and power takeoff electromagnetic valve, the limiting valve electromagnetic valve, the descending electromagnetic valve and the slow-falling electromagnetic valve in the embodiment, the interference of gas pipes is reduced, and later maintenance and modification are facilitated.
In addition, in order to achieve the above object, the present invention further provides a dump truck latch hook misoperation prevention control device, which includes the dump truck latch hook misoperation prevention 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 latch hook malfunction prevention control device for a dump vehicle as described above.
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. The utility model provides a tipper vehicle prevents latch hook maloperation control circuit which characterized in that, tipper vehicle prevents latch hook maloperation control circuit includes: the alarm device comprises a lock hook travel switch module, a buzzer and a control module, wherein a switch signal output end of the lock hook travel switch module is connected with a switch signal input end of the control module, an alarm signal output end of the lock hook travel switch module is connected with an alarm signal input end of the buzzer, 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 taking device and a gas inlet end of a gas control reversing valve;
the locking hook travel switch module is used for receiving a lifting signal, generating a closing signal according to the lifting signal when the locking hook is in a working state, and sending the closing signal to the control module;
the control module is used for receiving the closing signal and controlling the carriage to lift and stop according to the closing signal;
the locking hook travel switch module is also used for generating an alarm signal according to the lifting signal when the locking hook is in a working state and sending the alarm signal to the buzzer;
and the buzzer is used for receiving the alarm signal and alarming the misoperation of the lock hook according to the alarm signal.
2. The self-discharging vehicle lock hook misoperation prevention control circuit as claimed in claim 1, wherein the self-discharging vehicle lock hook misoperation prevention control circuit further comprises a lift switch module, wherein a lift switch signal output end of the lift switch module is connected with a lift switch signal input end of the lock hook travel switch module;
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 latch hook travel switch module.
3. The self-discharging vehicle lock hook misoperation prevention control circuit as claimed in claim 2, wherein the self-discharging vehicle lock hook misoperation prevention control circuit further comprises a stopper, and a closing signal output end of the stopper is connected with a closing signal input end of the control module;
the limiter is used for generating a closing signal when the inclination angle of the carriage reaches a preset inclination angle and sending the closing signal to the control module;
and the control module is also used for receiving the closing signal and stopping conveying the 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 closing signal so as to stop lifting the carriage.
4. The dump truck latch hook malfunction prevention control circuit according to claim 1, wherein the dump truck latch hook malfunction prevention control circuit further comprises a down switch module and a slow down switch module;
the descending switch module is characterized in that a descending switch signal output end of the descending switch module is connected with a descending switch signal input end of the control module, and a slow descending switch signal output end of the slow descending switch module is connected with a slow descending switch signal input end of the control module.
5. The self-discharging vehicle lock hook misoperation prevention control circuit according to claim 4, wherein the control module comprises a descending solenoid valve;
and the descending gas source output end of the descending electromagnetic valve is connected with a descending gas pipe of the pneumatic control reversing valve.
6. The latch hook malfunction prevention control circuit for dump trucks of claim 4 wherein the control module comprises a slow descent solenoid valve;
the slow-descending switch module is characterized in that a slow-descending switch signal output end of the slow-descending switch module is connected with a slow-descending switch signal input end of the slow-descending electromagnetic valve, and a slow-descending air source output end of the slow-descending electromagnetic valve is connected with a slow-descending air pipe of the pneumatic control reversing valve.
7. The self-discharging vehicle lock hook misoperation prevention control circuit according to any one of claims 1 to 6, wherein the control module comprises a lifting and power takeoff solenoid valve;
and the switch signal output end of the lock hook travel switch module is connected with the switch signal input end of the lifting and power takeoff electromagnetic valve.
8. The latch hook malfunction prevention control circuit for dump trucks of claim 7 wherein the control module further comprises a limit valve solenoid valve;
the air source output end of the lifting and power takeoff electromagnetic valve is connected with the air source input end of the limit valve electromagnetic valve, the closing signal output end of the limiter is connected with the closing signal input end of the limit valve electromagnetic valve, the power takeoff air source output end of the limit valve electromagnetic valve is connected with the power takeoff air pipe, and the lifting air source output end of the limit valve electromagnetic valve is connected with the lifting air pipe.
9. A self-discharging vehicle lock hook misoperation prevention control device, characterized in that the self-discharging vehicle lock hook misoperation prevention control device comprises the self-discharging vehicle lock hook misoperation prevention control circuit according to any one of claims 1 to 8.
10. A dump truck characterized in that the dump truck protection device comprises the dump truck latch hook malfunction prevention control device according to claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011432065.5A CN112455309A (en) | 2020-12-08 | 2020-12-08 | Lock hook misoperation prevention control circuit and device for dump truck and dump truck |
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| CN202011432065.5A CN112455309A (en) | 2020-12-08 | 2020-12-08 | Lock hook misoperation prevention control circuit and device for dump truck and dump truck |
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| CN112455309A true CN112455309A (en) | 2021-03-09 |
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| CN202011432065.5A Pending CN112455309A (en) | 2020-12-08 | 2020-12-08 | Lock hook misoperation prevention control circuit and device for dump truck and dump truck |
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