CN208118945U - Four-wheel laser leveling machine 4WD control device - Google Patents
Four-wheel laser leveling machine 4WD control device Download PDFInfo
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- CN208118945U CN208118945U CN201820363182.2U CN201820363182U CN208118945U CN 208118945 U CN208118945 U CN 208118945U CN 201820363182 U CN201820363182 U CN 201820363182U CN 208118945 U CN208118945 U CN 208118945U
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Abstract
The utility model relates to a kind of four-wheel laser leveling machine 4WD control devices, and including further including fuel tank, pilot operated valve device, balanced valve for driving four hydraulic motors of four wheels, pilot operated valve device connects oil inlet pipe and oil return line；Pressure-compensated valve is connected to the load feedback mouth of shuttle valve and hydraulic pump, the pressure oil port of the oil return line connection hydraulic pump, and hydraulic pump connects engine, and the inlet port of the hydraulic pump connects fuel tank with shell leakage hydraulic fluid port；One interface of the left side connection advance proportioning valve of pilot operated valve device, the right side of pilot operated valve device connects an interface of laggard proportioning valve, second orifice oil return line of advance proportioning valve and laggard proportioning valve, the advance proportioning valve connects speed governing valve with the third interface of laggard proportioning valve, and speed governing valve is connected to the load feedback mouth of pressure-compensated valve, shuttle valve, hydraulic pump.The utility model gentle start, good speed adjustment features, structure are simple, and the cement surface spread is bright and clean, smooth, high-efficient.
Description
Technical field
The utility model belongs to concrete machinery technical field, and in particular to a kind of four-wheel laser leveling machine four-wheel drive control
Device processed.
Background technique
Since hydraulic drive has many advantages, such as that light-weight, compact-sized, automatic adaptability is good, easy operation, smooth running,
When can meet engineer machinery operation well tractive force and speed variation sharply, frequently, the variation range harsh conditions such as greatly.Four-wheel
Laser leveling machine uses hydraulic-driven.
The hoofing part mode rear wheel drive that tradition four-wheel laser leveling machine All Hydraulic Travelling System uses at present, is constructing
In the work progress of live screeding concrete, rear wheel drive wheel is hanging frequent occurrence, and equipment is not walked, and at this moment just needs artificial
It goes to interfere, wastes a large amount of manpower and time, often miss concrete and most preferably flatten the time, to the certain economy of enterprise's band
Loss, reduces the service efficiency of equipment.
Utility model content
In order to overcome four-wheel laser leveling machine walking occasion road surface bumps in the prior art, easily causes wheel hub hanging, cause
The problem of equipment is not walked, the utility model provide a kind of four-wheel laser leveling machine 4WD control device, the device
On the all-hydraulic laser leveling machine of four-wheel drive, so that four-wheel laser leveling machine can arbitrarily walk on concrete, that is to say, that
Any one wheel hub lands in four-wheel, can smoothly walk, and substantially increases equipment construction working efficiency, is enterprises and individuals
The time is saved, certain income is brought to enterprise.
The utility model is realized by following technical proposals.A kind of four-wheel laser leveling machine 4WD control device,
Including for driving four wheels left front hydraulic motor, it is right before hydraulic motor, left back hydraulic motor, right rear hydraulic motor, also
Including fuel tank, pilot operated valve device, balanced valve, the first shunting/combiner valve, the second shunting/combiner valve, third shunting/combiner valve, pilot operated valve device
Oil inlet pipe and oil return line are connected, oil inlet pipe connects the oil absorption filter being mounted in fuel tank, and pilot operated valve device separates two branch
Road, this two branches pass through balanced valve, wherein a branch is as oil inlet branch, another branch is as oil return branch, institute
State reconnect after branch connection third shunting/combiner valve of oil inlet branch left front hydraulic motor and left back hydraulic motor into
Oily channel, another branch of the oil inlet branch are directly connected to the oil inlet passage of hydraulic motor and right rear hydraulic motor before the right side,
Left front hydraulic motor connects the first shunting/combiner valve, liquid after left back hydraulic motor and the right side with the drainback passage of hydraulic motor before the right side
The drainback passage of pressure motor connects the second shunting/combiner valve, described in the first shunting/combiner valve is connected with the second shunting/combiner valve
Oil return branch installs shuttle valve between the oil inlet branch and the oil return branch, and by oil circuit direction, the shuttle valve is located at pilot operated valve device
Later and it is located at before balanced valve；Pressure-compensated valve is installed, pressure-compensated valve is connected to shuttle valve and hydraulic pump on the oil return line
Load feedback mouth, the pressure oil port of oil return line connection hydraulic pump, hydraulic pump connects engine, the suction of the hydraulic pump
Hydraulic fluid port connects fuel tank with shell leakage hydraulic fluid port；One interface of the left side connection advance proportioning valve of pilot operated valve device, the right side of pilot operated valve device
An interface of laggard proportioning valve is connected, second orifice oil return line of advance proportioning valve and laggard proportioning valve is described
Advance proportioning valve connects speed governing valve with the third interface of laggard proportioning valve, and speed governing valve is connected to pressure-compensated valve, shuttle valve, hydraulic pump
Load feedback mouth.
Further preferably, the advance proportioning valve connects filter with laggard proportioning valve, and filter connects oil return line.
Further preferably, hydraulic motor, left back hydraulic motor, right rear hydraulic motor are respective before left front hydraulic motor, the right side
Double check valve is equipped between oil inlet passage and drainback passage.
Further preferably, the fuel tank is equipped with air cleaner and liquidometer.
Further preferably, the hydraulic pump is axial piston load sensitive pump.
The utility model gets up the pressure flow matching of the pressure needed for loading, flow and hydraulic pump utmostly to mention
High system effectiveness, the power utilization of system is improved, on the one hand by the pressure of pressure needed for system and hydraulic pump output
Match, on the other hand, by the flow matches of flow needed for load and hydraulic pump output, additionally to realize low function under standby mode
Consumption is negative.The utility model controls direction and the flow of pilot operated valve device by advance proportioning valve and laggard proportioning valve, can control liquid
The positive and negative rotation and speed of pressure motor, to realize the forward-reverse and speed of laser leveling machine；Balanced valve can control four-wheel and swash
Light evener smooth running, starting stop steady：First, second, third shunting/combiner valve can control each hydraulic motor
Input flow rate is equal, to realize the synchronous driving of four hydraulic motors；Double check valve is when the just flat machine of laser is realized and turned to, to remote
Motor (motor for turning great circle) repairing is held, turns to steady, indifferential to realize.
The utility model uses manual bidirectional variable pump direct drive of wheel, and adjusts hydraulic pump by proportional control bar
Positive and negative swash plate and swashplate angle size, so that the positive and negative rotation of hydraulic motor and the big minor adjustment of flow are realized, before eliminating
Rear axle gear, with starting is fast, good speed adjustment features, structure are simple and convenient to operate, installed power is small, indifferential advantage.This
The investment of utility model technology substantially increases the efficiency and quality of construction.It ensure that equipment operates in work progress at the scene
Simply, smooth running, substantially increase the construction working efficiency of equipment.
Detailed description of the invention
Fig. 1 is the schematic diagram of four-wheel laser leveling machine 4WD control device described in the utility model.
In figure：1- fuel tank, 2- oil absorption filter, 3- air cleaner, 4- liquidometer, 5- engine, 6- hydraulic pump, 7- tune
Fast valve, 8- filter, 9- advance proportioning valve, the laggard proportioning valve of 10-, 11- pressure-compensated valve, 12- pilot operated valve device, 13- shuttle valve, 14-
Balanced valve, the first shunting of 15-/combiner valve, the second shunting of 16-/combiner valve, 17- third shunting/combiner valve, 18- double check valve,
Hydraulic motor, the left back hydraulic motor of 21-, the right rear hydraulic motor of 22- before the left front hydraulic motor of 19-, 20- are right.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
As shown in Figure 1, four-wheel laser leveling machine 4WD control device includes the left front liquid for driving four wheels
Hydraulic motor 20, left back hydraulic motor 21, right rear hydraulic motor 22 before pressure motor 19, the right side further include fuel tank 1, pilot operated valve device 12, put down
Weigh valve 14, the first shunting/combiner valve 15, the second shunting/combiner valve 16, third shunting/combiner valve 17, and pilot operated valve device 12 connects oil inlet
Pipeline and oil return line, oil inlet pipe connect the oil absorption filter 2 being mounted in fuel tank, and pilot operated valve device 12 separates two branches, this
Two branches pass through balanced valve 14, wherein a branch is as oil inlet branch, another branch as oil return branch, it is described into
Left front hydraulic motor 19 and left back hydraulic motor 21 are reconnected after branch connection third shunting/combiner valve 17 of oily branch
Oil inlet passage, another branch of the oil inlet branch are directly connected to the oil inlet of hydraulic motor 20 and right rear hydraulic motor 22 before the right side
The drainback passage of hydraulic motor 20 connects the first shunting/combiner valve 15, left back hydraulic horse before channel, left front hydraulic motor 19 and the right side
The second shunting/combiner valve 16 is connected with the drainback passage of right rear hydraulic motor 22 up to 21, the first shunting/combiner valve 15 and second point
Stream/combiner valve 16 connects the oil return branch, shuttle valve 13 is installed between the oil inlet branch and the oil return branch, by oil circuit side
To the shuttle valve 13 is located at after pilot operated valve device 12 and is located at before balanced valve 14；Pressure-compensated valve is installed on the oil return line
11, pressure-compensated valve 11 is connected to the load feedback mouth (LS mouthfuls) of shuttle valve 13 and hydraulic pump 6, and the oil return line connects hydraulic pump 6
Pressure oil port (p mouthfuls), hydraulic pump 6 connect engine 5, the hydraulic pump 6 inlet port (s mouthful) and shell leakage hydraulic fluid port (L
Mouthful) connection fuel tank 1；One interface of the left side connection advance proportioning valve 9 of pilot operated valve device 12, the right side of pilot operated valve device 12 connects laggard ratio
One interface of example valve 10, second orifice oil return line of advance proportioning valve 9 and laggard proportioning valve 10, the advance ratio
Example valve 9 connects speed governing valve 7 with the third interface of laggard proportioning valve 10, and speed governing valve 7 is connected to pressure-compensated valve 11, shuttle valve 13, liquid
The load feedback mouth (LS mouthfuls) of press pump 6.
Preferably, the advance proportioning valve 9 and laggard proportioning valve 10 connect filter 8, filter 8 connects oil return line.
Preferably, hydraulic motor 20, left back hydraulic motor 21, right rear hydraulic motor 22 are each before left front hydraulic motor 19, the right side
From oil inlet passage and drainback passage between be equipped with double check valve 18.The oil discharge passage of double check valve 18 connects distal end motor.
Preferably, the fuel tank 1 is equipped with air cleaner 3 and liquidometer 4.
Preferably, the hydraulic pump 6 is axial piston load sensitive pump.
The working principle of this practical new technique：
Four-wheel laser leveling machine advances：The proportional control bar for pushing advance proportioning valve 9 forward, to control advance proportioning valve
9 openings (i.e. input flow rate) push the reversing valve core of pilot operated valve device 12 to arrive left side, and pressure oil passes through balanced valve 14, pass through all the way
Three shuntings/combiner valve 17, flow, which is divided equally, enters left front hydraulic motor 19 and left back hydraulic motor 21；In addition it arrives all the way hydraulic before the right side
Motor 20 and right rear hydraulic motor 22, oil return divide equally flow by the first shunting/combiner valve 15, the second shunting/combiner valve 16
Hydraulic motor 20 and right rear hydraulic motor 22 before to the right side；Flow into each hydraulic motor passes through each shunting/combiner valve, makes
The flow of each hydraulic motor is equal, to realize the synchronous driving walking of four-wheel.
Four-wheel laser leveling machine retreats：The proportional control bar of laggard proportioning valve 10 is pushed forward, to control laggard ratio
Valve 10 is open (i.e. input flow rate), pushes the reversing handle of pilot operated valve device 12 to right side, pressure oil passes through balanced valve 14, by first
Shunting/combiner valve 15, the second shunting/combiner valve 16, flow, which is divided equally, enters each hydraulic motor, makes the stream of each hydraulic motor
Measure it is equal, to realize the synchronous driving walking of four-wheel.
Four-wheel laser leveling machine stops：The proportional control bar of advance proportioning valve 9 and laggard proportioning valve 10 is in middle position state,
Advance proportioning valve 9 and laggard proportioning valve 10 are not charged.
Be accurately controlled in hydraulic coupling on hydraulic motor by proportioning valve, make four-wheel laser leveling machine have gentle start,
Good speed adjustment features, structure are simple and convenient to operate, installed power is small, indifferential advantage, thus guarantee spread cement surface it is bright and clean and
Working efficiency that is smooth and improving equipment.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of four-wheel laser leveling machine 4WD control device, including for driving four wheels left front hydraulic motor,
Hydraulic motor, left back hydraulic motor, right rear hydraulic motor before the right side further include fuel tank, pilot operated valve device, balanced valve, the first shunting/afflux
Valve, the second shunting/combiner valve, third shunting/combiner valve, pilot operated valve device connect oil inlet pipe and oil return line, oil inlet pipe connection
The oil absorption filter being mounted in fuel tank, pilot operated valve device separate two branches, this two branches pass through balanced valve, wherein a branch
Road as oil inlet branch, another branch as oil return branch, it is characterized in that：One branch of the oil inlet branch connects third
Reconnect the oil inlet passage of left front hydraulic motor and left back hydraulic motor after shunting/combiner valve, another of the oil inlet branch
Branch is directly connected to the oil inlet passage of hydraulic motor and right rear hydraulic motor before the right side, hydraulic motor before left front hydraulic motor and the right side
Drainback passage connect the first shunting/combiner valve, left back hydraulic motor connect with the drainback passage of right rear hydraulic motor second shunt/
Combiner valve, the first shunting/combiner valve and the second shunting/combiner valve connect the oil return branch, the oil inlet branch and described time
Shuttle valve is installed between oily branch, by oil circuit direction, the shuttle valve is located at after pilot operated valve device and is located at before balanced valve；The oil return
Pressure-compensated valve is installed, pressure-compensated valve is connected to the load feedback mouth of shuttle valve and hydraulic pump, the oil return line connection on pipeline
The pressure oil port of hydraulic pump, hydraulic pump connect engine, and the inlet port of the hydraulic pump connects fuel tank with shell leakage hydraulic fluid port；Liquid
An interface of the left side connection advance proportioning valve of valve is controlled, the right side of pilot operated valve device connects an interface of laggard proportioning valve, advances
The third of second orifice oil return line of proportioning valve and laggard proportioning valve, the advance proportioning valve and laggard proportioning valve
Interface connects speed governing valve, and speed governing valve is connected to the load feedback mouth of pressure-compensated valve, shuttle valve, hydraulic pump.
2. four-wheel laser leveling machine 4WD control device according to claim 1, it is characterized in that：The advance ratio
Valve connects filter with laggard proportioning valve, and filter connects oil return line.
3. four-wheel laser leveling machine 4WD control device according to claim 1, it is characterized in that：Left front hydraulic horse
Reach, it is right before be equipped between hydraulic motor, left back hydraulic motor, the respective oil inlet passage of right rear hydraulic motor and drainback passage it is double
Check valve.
4. four-wheel laser leveling machine 4WD control device according to claim 1, it is characterized in that：The fuel tank installation
There is air cleaner.
5. four-wheel laser leveling machine 4WD control device according to claim 1, it is characterized in that：The fuel tank installation
There is liquidometer.
6. four-wheel laser leveling machine 4WD control device according to claim 1, it is characterized in that：The hydraulic pump is
Axial piston load sensitive pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820363182.2U CN208118945U (en) | 2018-03-17 | 2018-03-17 | Four-wheel laser leveling machine 4WD control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820363182.2U CN208118945U (en) | 2018-03-17 | 2018-03-17 | Four-wheel laser leveling machine 4WD control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208118945U true CN208118945U (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820363182.2U Active CN208118945U (en) | 2018-03-17 | 2018-03-17 | Four-wheel laser leveling machine 4WD control device |
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| Country | Link |
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| CN (1) | CN208118945U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043090A (en) * | 2019-10-14 | 2020-04-21 | 武汉船用机械有限责任公司 | Hydraulic control system for a water jet propulsion device |
| CN111549755A (en) * | 2019-02-11 | 2020-08-18 | 卡特彼勒路面机械公司 | Traction control method for rotary mixer |
-
2018
- 2018-03-17 CN CN201820363182.2U patent/CN208118945U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549755A (en) * | 2019-02-11 | 2020-08-18 | 卡特彼勒路面机械公司 | Traction control method for rotary mixer |
| CN111549755B (en) * | 2019-02-11 | 2024-01-02 | 卡特彼勒路面机械公司 | Traction control method for rotary mixer |
| CN111043090A (en) * | 2019-10-14 | 2020-04-21 | 武汉船用机械有限责任公司 | Hydraulic control system for a water jet propulsion device |
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