CN107143541B - The block selecting automatic traveling crane system of vehicle - Google Patents

The block selecting automatic traveling crane system of vehicle Download PDF

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Publication number
CN107143541B
CN107143541B CN201710323175.XA CN201710323175A CN107143541B CN 107143541 B CN107143541 B CN 107143541B CN 201710323175 A CN201710323175 A CN 201710323175A CN 107143541 B CN107143541 B CN 107143541B
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CN
China
Prior art keywords
valve
solenoid valve
mouth
block selecting
mouthfuls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201710323175.XA
Other languages
Chinese (zh)
Other versions
CN107143541A (en
Inventor
王鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANJING HEYUN AND JILIAN MDT INFOTECH LTD
Original Assignee
Nanjing Heyun And Jilian Mdt Infotech Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201810427714.9A priority Critical patent/CN108757604B/en
Priority to CN201810428670.1A priority patent/CN108591146B/en
Priority to CN201810428228.9A priority patent/CN108374891B/en
Priority to CN201710323175.XA priority patent/CN107143541B/en
Priority to CN201810427741.6A priority patent/CN108626387B/en
Application filed by Nanjing Heyun And Jilian Mdt Infotech Ltd filed Critical Nanjing Heyun And Jilian Mdt Infotech Ltd
Priority to CN201810428666.5A priority patent/CN108706010A/en
Priority to CN201810428668.4A priority patent/CN108706011A/en
Publication of CN107143541A publication Critical patent/CN107143541A/en
Application granted granted Critical
Publication of CN107143541B publication Critical patent/CN107143541B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4165—Control of cooling or lubricating
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/04—Driver's valves
    • B60T15/041—Driver's valves controlling auxiliary pressure brakes, e.g. parking or emergency brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4043—Control of a bypass valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure

Abstract

A kind of block selecting automatic traveling crane system of vehicle, including fuel tank, filter, hydraulic pump, safety valve, block selecting valve, retreating gear clutch, forward gear clutch, accelerator pedal mechanism, throttle master cylinder, lubricating cup, throttle hydraulic cylinder, parking brake, shut-down hydraulic cylinder, first solenoid valve, second solenoid valve and control mechanism and stopping brake valve, oil inlet P 2 mouthful of the oil outlet of hydraulic pump respectively with the oil inlet P mouth of block selecting valve and second solenoid valve connects, A mouthfuls of the execution mouth of block selecting valve respectively with forward gear clutch, 1 mouthful of oil inlet P mouth and the oil inlet P of second solenoid valve of first solenoid valve connects, B mouthfuls of the execution mouth of block selecting valve is connected with retreating gear clutch；A mouthfuls of the execution mouth of second solenoid valve is connected with the oil inlet P mouth of stopping brake valve, A mouthfuls of the execution mouth of first solenoid valve is connected with the rod chamber of throttle hydraulic cylinder, and the present invention can be such that vehicle is switched in normally travel state with job state and can automatic traveling crane, easy to operate during the block selecting in job state.

Description

The block selecting automatic traveling crane system of vehicle
Technical field
The present invention relates to a kind of vehicles, and in particular to a kind of block selecting automatic traveling crane system of vehicle.
Background technology
Vehicle generally first selects forward gear, then releases stopping brake in normally travel state when driver is open to traffic It steps on the gas again, when that need to stop, throttle can be unclamped and selection and is braked at neutral gear, for need to often convert operating location and not With the distance between operating location and shorter working truck, during operation, since its operating range is very short, and need frequent Parking continually operates throttle, gear and braking for driver, and operation is very inconvenient, therefore design one kind can be just Normal transport condition switched over job state and in job state block selecting can automatic traveling crane, easy to operate vehicle block selecting Automatic traveling crane system is very necessary.
Invention content
The object of the present invention is to provide one kind to be switched over and in job state in normally travel state and job state When block selecting when can automatic traveling crane, easy to operate vehicle block selecting automatic traveling crane system.
To achieve these goals, the technical scheme is that：
A kind of block selecting automatic traveling crane system of vehicle including fuel tank, filter, hydraulic pump, safety valve, block selecting valve, retreats Keep off clutch, forward gear clutch, accelerator pedal mechanism, throttle master cylinder, lubricating cup, throttle hydraulic cylinder, parking brake, parking liquid Cylinder pressure and stopping brake valve, the parking brake include movable plate and stationary plate, and innovative point is：Further include the first solenoid valve, Second solenoid valve and control mechanism；
The oil inlet of the hydraulic pump is connected by filter with fuel tank, and the oil outlet of hydraulic pump is distinguished by two oily channels It is connected with the oil inlet P mouth of block selecting valve and 2 mouthfuls of the oil inlet P of second solenoid valve, A mouthfuls of the execution mouth of block selecting valve passes through three oily channels Respectively with the oil inlet P of forward gear clutch, the oil inlet P mouth of the first solenoid valve and second solenoid valve 1 mouthful connect, block selecting valve B mouthfuls of mouth is performed to connect with retreating gear clutch；
A mouthfuls of the execution mouth of the second solenoid valve is connected with the oil inlet P mouth of stopping brake valve, the execution of stopping brake valve A mouthfuls of mouth is connected with the rod chamber of shut-down hydraulic cylinder, and the piston rod of shut-down hydraulic cylinder is fixedly connected with the movable plate of parking brake；
The piston rod of the throttle master cylinder is fixedly connected with the gas pedal of accelerator pedal mechanism, the lubricating cup and throttle master The rodless cavity connection of cylinder, and mounting height of the lubricating cup on vehicle is higher than mounting height of the throttle master cylinder on vehicle, the oil The rodless cavity of door master cylinder is connected with the rod chamber of throttle hydraulic cylinder, and the piston rod of the throttle hydraulic cylinder and the throttle of engine are drawn Bar is fixedly connected；
A mouthfuls of the execution mouth of first solenoid valve is connected with the rod chamber of throttle hydraulic cylinder, and first solenoid valve connects Line end and the terminals of second solenoid valve are electrically connected with control mechanism.
The control mechanism includes switch and power supply, the switch are electrically connected to a power source.
The control mechanism includes button switch and master controller, and the button switch is electrically connected with master controller, button When switch is closed electricity condition is being obtained by the terminals of the first solenoid valve of main controller controls and the terminals of second solenoid valve.
Drainback passage is equipped between the oil outlet and fuel tank of the hydraulic pump, safety valve is arranged in the drainback passage.
Benefit of the invention is that：(1), due to working as the switch of control mechanism in opening state or opening the button of control mechanism It closes in opening state, the terminals of the first solenoid valve and the terminals of second solenoid valve are in power failure state, and vehicle is just at this time Normal transport condition, when the switch of control mechanism in closed state or makes the button switch of control mechanism in closed state, the first electricity The terminals of magnet valve and the terminals of second solenoid valve electricity condition, vehicle is in job state at this time, therefore vehicle can be Normally travel state is switched over job state；(2), due to when vehicle need to be in job state, the wiring of the first solenoid valve End and the terminals of second solenoid valve are obtaining electricity condition, and the oil inlet P mouth of the first solenoid valve is communicated with performing mouth A mouthfuls, and second 1 mouthful of the oil inlet P of solenoid valve is communicated with performing mouth A mouthfuls, and block selecting valve need to be only operated when driver is open to traffic, make block selecting valve into P mouthfuls of hydraulic fluid port is communicated with performing mouth A mouthfuls, and vehicle is made to hang over forward gear；The pressure oil in hydraulic pump can also enter throttle hydraulic pressure simultaneously The rod chamber of cylinder, the piston rod of throttle hydraulic cylinder drive the accelerator rod of engine to move and open out；Simultaneously in hydraulic pump Pressure oil can also enter shut-down hydraulic cylinder rod chamber, make shut-down hydraulic cylinder piston rod drive parking brake movable plate with it is quiet Piece detaches, and Parking braking release, vehicle starts running.Therefore block selecting valve need to only be operated, you can select forward gear, open out and releasing Stopping brake, i.e., can automatic traveling crane, easy to operate during block selecting in job state.When that need to stop, block selecting valve only need to be operated, is made A mouthfuls of the execution mouth of block selecting valve and B mouthfuls of mouth of execution are communicated with fuel tank 1, and vehicle is hung in neutral gear；Throttle hydraulic cylinder is in spring simultaneously Under the action of piston rod drive the accelerator rod return of engine, i.e. no longer open out；Shut-down hydraulic cylinder is in the work of spring simultaneously Under, the pressure oil in shut-down hydraulic cylinder 14 returns to fuel tank, and the piston rod of shut-down hydraulic cylinder is made to drive the movable plate of parking brake It is combined with stationary plate, vehicle braking, therefore need to only operate block selecting valve, you can hung neutral gear, no longer open out and braked, that is, making It is easy to operate during industry state.
Below in conjunction with attached drawing and the embodiment provided, the present invention is further illustrated.
Description of the drawings
Fig. 1 is the schematic diagram that the control mechanism of the present invention is switch and power supply；
The control mechanism that Fig. 2 is the present invention is button switch and the schematic diagram of master controller；
Fig. 3 is the schematic diagram of the vehicle block selecting of former vehicle, throttle and stopping brake.
Specific embodiment
As shown in Figure 1 and Figure 2, the block selecting automatic traveling crane system of a kind of vehicle, including fuel tank 1, filter 2, hydraulic pump 3, peace Full valve 4, block selecting valve 5, retreating gear clutch 6, forward gear clutch 7, accelerator pedal mechanism 8, throttle master cylinder 9, lubricating cup 10, throttle Hydraulic cylinder 11, parking brake 13, shut-down hydraulic cylinder 14 and stopping brake valve 15, the parking brake 13 include movable plate 13- 1 and stationary plate 13-2, innovative point be：Further include the first solenoid valve 12, second solenoid valve 16 and control mechanism 20；
The oil inlet of the hydraulic pump 3 is connected by filter 2 with fuel tank 1, and the oil outlet of hydraulic pump 3 passes through two oily channels 2 mouthfuls of the oil inlet P with the oil inlet P mouth of block selecting valve 5 and second solenoid valve 16 connects respectively, and A mouthfuls of the execution mouth of block selecting valve 5 passes through Three oily channels respectively with 1 mouthful of the oil inlet P of forward gear clutch 7, the oil inlet P mouth of the first solenoid valve 12 and second solenoid valve 16 Connection, B mouthfuls of the execution mouth of block selecting valve 5 are connected with retreating gear clutch 6；
A mouthfuls of the execution mouth of the second solenoid valve 16 is connected with the oil inlet P mouth of stopping brake valve 15, stopping brake valve 15 A mouthfuls of execution mouth connected with the rod chamber of shut-down hydraulic cylinder 14, the piston rod 14-1 of shut-down hydraulic cylinder 14 and parking brake 13 Movable plate 13-1 be fixedly connected；Shut-down hydraulic cylinder 14 controls the action of parking brake 13 to make vehicle braking or brake release.
The piston rod 9-1 of the throttle master cylinder 9 is fixedly connected with the gas pedal 8-1 of accelerator pedal mechanism 8, the lubricating cup 10 connect with the rodless cavity of throttle master cylinder 9, and mounting height of the lubricating cup 10 on vehicle is higher than peace of the throttle master cylinder 9 on vehicle Dress height, the rodless cavity of the throttle master cylinder 9 are connected with the rod chamber of throttle hydraulic cylinder 11, the piston of the throttle hydraulic cylinder 11 Bar is fixedly connected with the accelerator rod of engine；
A mouthfuls of the execution mouth of first solenoid valve 12 is connected with the rod chamber of throttle hydraulic cylinder 11, first solenoid valve 12 terminals and the terminals of second solenoid valve 16 are electrically connected with control mechanism 20.
The control mechanism 20 includes switch 21 and power supply 22, and the switch 21 is electrically connected with power supply 22.This control machine The structure of structure 20 is simple, at low cost, and switch 21 is in closed state, the first terminals of solenoid valve 12 and connecing for second solenoid valve 16 Line end is obtaining electricity condition.
The control mechanism 20 includes button switch 23 and master controller 24, the button switch 23 and 24 electricity of master controller Connection, button switch 23 are controlled the terminals of the first solenoid valve 12 and the wiring of second solenoid valve 16 by master controller 24 when being closed End is obtaining electricity condition.
Drainback passage is equipped between the oil outlet of the hydraulic pump 3 and fuel tank 1, safety valve 4 is arranged in the drainback passage.
When vehicle is in normally travel state, makes the switch 21 of control mechanism 20 in opening state or make control mechanism 20 Button switch 23 in opening state, the terminals of the first solenoid valve 12 and the terminals of second solenoid valve 16 in power failure state, The oil inlet P mouth of first solenoid valve 12 is not communicated with performing mouth A mouthfuls, and 1 mouthful of the oil inlet P of second solenoid valve 16 is with performing A mouthfuls of mouth It is not communicated with, 2 mouthfuls of the oil inlet P of second solenoid valve 16 is communicated with performing mouth A mouthfuls, and block selecting valve can be first operated when driver is open to traffic 5, the oil inlet P mouth of block selecting valve 5 is made to be communicated with performing mouth A mouthfuls, the pressure oil in hydraulic pump 3 enters forward gear clutch 7, vehicle Hang over forward gear；Then operation stopping brake valve 15 makes the oil inlet P mouth of stopping brake valve 15 be communicated with performing mouth A mouthfuls, due to 2 mouthfuls of the oil inlet P of second solenoid valve 16 is communicated with performing mouth A mouthfuls at this time, and the pressure oil in hydraulic pump 3 is after second solenoid valve 16 The rod chamber of shut-down hydraulic cylinder 14 is arrived through the brake valve 15 that stops again, the piston rod 14-1 of shut-down hydraulic cylinder 14 is made to drive stopping brake The movable plate 13-1 of device 13 is detached with stationary plate 13-2, Parking braking release；The gas pedal 8-1 of accelerator pedal mechanism 8 again, by The gas pedal 8-1 of accelerator pedal mechanism 8 drives the piston rod 9-1 of throttle master cylinder 9 to move right the rodless cavity for making throttle master cylinder 9 Hydraulic oil enter the rod chamber of throttle hydraulic cylinder 11, the piston rod of throttle hydraulic cylinder 11 drives the accelerator rod movement of engine And open out, vehicle start running.When that need to stop, the gas pedal 8-1 of accelerator pedal mechanism 8 is unclamped, throttle master cylinder 9 is in bullet Piston rod 9-1 does not enter back into throttle hydraulic cylinder 11 to left movement, the at this moment hydraulic oil of the rodless cavity of throttle master cylinder 9 under the action of spring Rod chamber, throttle hydraulic cylinder 11 under the action of the spring piston rod drive engine accelerator rod return, i.e., no longer refuel Door；Block selecting valve 5 is operated again, the oil inlet P mouth of block selecting valve 5 is made to be not communicated with performing mouth A mouthfuls and performing B mouthfuls of mouth, vehicle is hung over Neutral gear；Then operation stopping brake valve 15, makes A mouthfuls of the execution mouth of stopping brake valve 15 be communicated with fuel tank 1, shut-down hydraulic cylinder 14 For pressure oil in rod chamber through 15 oil return box 1 of brake valve of stopping, shut-down hydraulic cylinder 14 makes piston rod 14-1 under the action of the spring The movable plate 13-1 of parking brake 13 is driven to be combined with stationary plate 13-2, vehicle is in parking brake condition, as long as therefore making control The switch 21 of mechanism 20 is in opening state or makes the button switch 23 of control mechanism 20 in opening state, i.e. the first solenoid valve 12 Oil inlet P mouth be not communicated with performing mouth A mouthful, mouth A mouthfuls with execution of 1 mouthful of the oil inlet P of second solenoid valve 16 is not communicated with, and second is electric 2 mouthfuls of the oil inlet P of magnet valve 16 is communicated with performing mouth A mouthfuls, and vehicle is in normally travel state, vehicle block selecting, throttle and stopping brake As the function of former vehicle type structure, the operating mechanism of former vehicle is remained.
When vehicle in job state, need to be such that the oil inlet P mouth of stopping brake valve 15 is communicated with performing mouth A mouthfuls, make control The switch 21 of mechanism 20 is in closed state or makes the button switch 23 of control mechanism 20 in closed state, the first solenoid valve 12 Terminals and the terminals of second solenoid valve 16 are obtaining electricity condition, the mouth A mouthfuls of phase of oil inlet P mouth and execution of the first solenoid valve 12 Logical, 1 mouthful of the oil inlet P of second solenoid valve 16 is communicated with performing mouth A mouthfuls, and block selecting valve 5 need to be only operated when driver is open to traffic, is made The oil inlet P mouth of block selecting valve 5 is communicated with performing mouth A mouthfuls, and the pressure oil in hydraulic pump 3 can enter forward gear clutch through block selecting valve 5 Device 7, makes vehicle hang over forward gear；The pressure oil in hydraulic pump 3 can also enter after block selecting valve 5 through the first solenoid valve 12 simultaneously The rod chamber of throttle hydraulic cylinder 11, the piston rod of throttle hydraulic cylinder 11 drive the accelerator rod of engine to move and open out；Together When hydraulic pump 3 in pressure oil can also after block selecting valve 5 through second solenoid valve 16 again through stop brake valve 15 arrive shut-down hydraulic cylinder 14 rod chamber makes the piston rod 14-1 of shut-down hydraulic cylinder 14 that the movable plate 13-1 and stationary plate 13-2 of parking brake 13 be driven to divide From Parking braking release, vehicle starts running.Therefore block selecting valve 5 need to only be operated, you can forward gear, open out and releasing is selected to stop Vehicle is braked, i.e., can automatic traveling crane, easy to operate during block selecting in job state.When that need to stop, block selecting valve 5 only need to be operated, is made A mouthfuls of the execution mouth of block selecting valve 5 and perform B mouthful of mouth communicated with fuel tank 1, i.e., the oil inlet P mouth of block selecting valve 5 with execution A mouthfuls of mouth and It performs B mouthfuls of mouth to be not communicated with, vehicle is hung in neutral gear；The pressure oil in hydraulic pump 3 will not be after block selecting valve 5 through first simultaneously Solenoid valve 12 enters the rod chamber of throttle hydraulic cylinder 11, and piston rod drives engine to throttle hydraulic cylinder 11 under the action of the spring Accelerator rod return, i.e. no longer open out；While shut-down hydraulic cylinder 14 is under the action of the spring, the pressure in shut-down hydraulic cylinder 14 Oil returns to fuel tank 1 through second solenoid valve 16 after the brake valve 15 that stops to block selecting valve 5, makes the piston rod 14-1 of shut-down hydraulic cylinder 14 The movable plate 13-1 of parking brake 13 is driven to be combined with stationary plate 13-2, vehicle braking, therefore need to only operate block selecting valve 5, you can It hangs neutral gear, no longer open out and is braked, i.e., it is easy to operate in job state.

Claims (4)

1. a kind of block selecting automatic traveling crane system of vehicle, including fuel tank (1), filter (2), hydraulic pump (3), safety valve (4), choosing Keep off valve (5), retreating gear clutch (6), forward gear clutch (7), accelerator pedal mechanism (8), throttle master cylinder (9), lubricating cup (10), Throttle hydraulic cylinder (11), parking brake (13), shut-down hydraulic cylinder (14) and stopping brake valve (15), the parking brake (13) including movable plate (13-1) and stationary plate (13-2), it is characterised in that：Further include the first solenoid valve (12), second solenoid valve (16) and control mechanism (20)；
The oil inlet of the hydraulic pump (3) is connected by filter (2) with fuel tank (1), and the oil outlet of hydraulic pump (3) passes through two oil Oil inlet P 2 mouthful of the channel respectively with the oil inlet P mouth of block selecting valve (5) and second solenoid valve (16) connects, and block selecting valve (5) are held A mouthfuls of row mouth by three oily channels respectively with forward gear clutch (7), the oil inlet P mouth and the second electromagnetism of the first solenoid valve (12) 1 mouthful of connection of oil inlet P of valve (16), B mouthfuls of the execution mouth of block selecting valve (5) are connected with retreating gear clutch (6)；
A mouthfuls of the execution mouth of the second solenoid valve (16) is connected with the oil inlet P mouth of stopping brake valve (15), stopping brake valve (15) A mouthfuls of execution mouth is connected with the rod chamber of shut-down hydraulic cylinder (14), and the piston rod (14-1) of shut-down hydraulic cylinder (14) is with stopping The movable plate (13-1) of vehicle brake (13) is fixedly connected；
The piston rod (9-1) of the throttle master cylinder (9) is fixedly connected with the gas pedal (8-1) of accelerator pedal mechanism (8), described Lubricating cup (10) is connected with the rodless cavity of throttle master cylinder (9), and mounting height of the lubricating cup (10) on vehicle is higher than throttle master cylinder (9) Mounting height on vehicle, the rodless cavity of the throttle master cylinder (9) are connected with the rod chamber of throttle hydraulic cylinder (11), the oil The piston rod of door hydraulic cylinder (11) is fixedly connected with the accelerator rod of engine；
A mouthfuls of the execution mouth of first solenoid valve (12) is connected with the rod chamber of throttle hydraulic cylinder (11), first solenoid valve (12) terminals and the terminals of second solenoid valve (16) are electrically connected with control mechanism (20).
2. the block selecting automatic traveling crane system of vehicle according to claim 1, it is characterised in that：Control mechanism (20) packet Switch (21) and power supply (22) are included, the switch (21) is electrically connected with power supply (22).
3. the block selecting automatic traveling crane system of vehicle according to claim 1, it is characterised in that：Control mechanism (20) packet Button switch (23) and master controller (24) are included, the button switch (23) is electrically connected with master controller (24), button switch (23) control the terminals of the first solenoid valve (12) and the terminals of second solenoid valve (16) equal by master controller (24) when being closed Obtaining electricity condition.
4. the block selecting automatic traveling crane system of vehicle according to claim 1, it is characterised in that：Hydraulic pump (3) go out Drainback passage is equipped between hydraulic fluid port and fuel tank (1), safety valve (4) is arranged in the drainback passage.
CN201710323175.XA 2017-05-09 2017-05-09 The block selecting automatic traveling crane system of vehicle Expired - Fee Related CN107143541B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201810428670.1A CN108591146B (en) 2017-05-09 2017-05-09 vehicle gear-selecting automatic driving system convenient to operate and working method
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