CN205951716U - Novel ensilage machine hydraulic pressure traveling system - Google Patents
Novel ensilage machine hydraulic pressure traveling system Download PDFInfo
- Publication number
- CN205951716U CN205951716U CN201620686449.2U CN201620686449U CN205951716U CN 205951716 U CN205951716 U CN 205951716U CN 201620686449 U CN201620686449 U CN 201620686449U CN 205951716 U CN205951716 U CN 205951716U
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- Prior art keywords
- oil
- pressure
- pump
- main line
- running motor
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Abstract
The utility model discloses a novel ensilage machine hydraulic pressure traveling system, including two walking motors, every walking motor correspondence is connected with a traveling pump, and the oil return opening of every walking motor passes through low -pressure pipeline with the oil inlet that corresponds the traveling pump to be connected, and the oil -out and the oil inlet that corresponds the motor of walking of traveling pump are connected through high -pressure pipeline, be connected with automatic oil supplementing device between low -pressure pipeline and the high -pressure pipeline, include with the oil filter that inhales of oil tank intercommunication, inhale oil filter and be connected with the slippage pump, it has the pressure pipeline filter to mend oil pump connection, the pressure pipeline filter is connected with mends oily main line, mends oily main line and connects two benefit oil branch pipe ways of being connected with high -pressure pipeline and low -pressure pipeline respectively, every benefit oil branch pipe is provided with on the road and prevents adverse current oil supplementing device 0, mends and is provided with oil supplementing device 1 on the oily main line, the direct oil inlet with the traveling pump of oil return opening of walking motor links to each other, and fluid is direct at system's inner loop without the oil tank, saves a very big oil tank, compact structure.
Description
Technical field
This utility model is related to technical field of hydraulic, more particularly, to a kind of hydraulic moving system driving ensilage machine work
System.
Background technology
Transmit power and the hydraulic drive being controlled with hydraulic oil as working media, its hydraulic power is by liquid
Pressure and flow transmission, by operation principle or according to pressure with two parameters of flow which in the highest flight, hydraulic pressure passes
Move and can be divided into positive displacement and dynamical type two big class, volume hydraulic transmission is to be passed using the liquid by static pressure in sealed volume
Pass (pascal's principle) of power, it is characterized in that the little pressure of flow is big in the highest flight, therefore, often will transmit power with hydraulic oil
Hydraulic system is referred to as hydrostatic drive.Hydrostatic drive is exactly to drive hydraulic pump to be converted into hydraulic energy the mechanical energy of electromotor,
And the highly pressurised liquid of hydraulic pump output enters through operation adjusting means and is contained in road wheel nearby or is directly installed in the hydraulic pressure horse in wheel
Reach, be mechanical energy by hydraulic energy transfer again, make a kind of type of drive that wheel rotates
Utility model content
Technical problem to be solved in the utility model is that a kind of speed ratio excursion of offer is big, it is simple, achievable to manipulate
Need not shift gears, power flow is not interrupted and do not needed the novel silage machine hydraulic travel system of start clutch.
For solving above-mentioned technical problem, the technical solution of the utility model is：Novel silage machine hydraulic travel system, including
Two running motors, each described running motor correspondence is connected with a traveling pump, and described running motor is connected with brake control
Valve group, described traveling pump is connected with controller, and described controller is connected with walking handle and steering tiller, each described walking horse
The oil return opening reaching is connected by low pressure line with the oil-in of corresponding described traveling pump, the oil-out of described traveling pump and corresponding institute
The oil-in stating running motor is connected by pressure duct；
It is connected with automatic oil recharging device, described automatic oil recharging device includes between described low pressure line and described pressure duct
The oil absorption filter connecting with fuel tank, described oil absorption filter is connected with slippage pump, and described slippage pump is connected with manometer tube and passes by
Filter, the oil-out of described pressure piping filter is connected with repairing main line, described repairing main line connect two respectively with
Described pressure duct and the repairing bye-pass of described low pressure line connection, each described repairing bye-pass is provided with counterflow-preventing peace
Full device, described repairing main line is provided with over-pressure safety device.
As a kind of preferred technical scheme, described over-pressure safety device includes the overflow being connected with described repairing main line
Valve.
As a kind of preferred technical scheme, described running motor is connected with decelerator and flushing valve.
As a kind of preferred technical scheme, described brake control valve group include two in parallel with described running motor respectively
Two position three-way valve, described two position three-way valve is connected with described repairing main line.
As a kind of preferred technical scheme, between described pressure duct and described low pressure line, it is connected with bypass valve.
As a kind of preferred technical scheme, described counterflow-preventing safety device includes being arranged on described repairing bye-pass
Check valve, described check valve is parallel with a relief valve.
Due to employing technique scheme, novel silage machine hydraulic travel system, including two running motors, each institute
State running motor correspondence and be connected with a traveling pump, described running motor is connected with brake control valve group, described traveling pump connects
There is controller, described controller is connected with walking handle and steering tiller, the oil return opening of each described running motor and corresponding institute
The oil-in stating traveling pump is connected by low pressure line, the oil-in of the oil-out of described traveling pump and corresponding described running motor
Connected by pressure duct；It is connected with automatic oil recharging device, described automatic benefit between described low pressure line and described pressure duct
Oily device includes the oil absorption filter connecting with fuel tank, and described oil absorption filter is connected with slippage pump, and described slippage pump is connected with
Pressure piping filter, the oil-out of described pressure piping filter is connected with repairing main line, and described repairing main line connects
The repairing bye-pass that two are connected with described pressure duct and described low pressure line respectively, each described repairing bye-pass is arranged
There is counterflow-preventing safety device, described repairing main line is provided with over-pressure safety device；This running gear is by traveling pump, walking horse
Reach, controller, walking handle, steering tiller and brake control valve group form closed circuit, running motor in this closed circuit
Oil return opening is directly connected with the oil-in of traveling pump, fluid without fuel tank directly in system interior circulation, save one very big
Fuel tank, compact conformation；Internal leakage fluid in automatic oil recharging device supplementary loop, maintains the normal pressure of low pressure line, provides
Cooling oil, compensates the fluid loss causing because of external valve or aid system, and is that control system provides fluid and controls pressure
Power.
Brief description
The following drawings is only intended to, in this utility model is done with schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein：
Fig. 1 is the schematic diagram of this utility model embodiment；
In figure：11- running motor；12- decelerator；13- flushing valve；2- traveling pump；21- low pressure line；22- high-voltage tube
Road；3- brake control valve group；4- fuel tank；51- oil absorption filter；52- slippage pump；53- pressure piping filter；54- repairing master
Pipeline；55- repairing bye-pass；61- check valve；62- relief valve；7- overflow valve；8- bypass valve；9- radiator.
Specific embodiment
With reference to the accompanying drawings and examples, this utility model is expanded on further.In the following detailed description, only pass through to say
Bright mode describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art is permissible
Recognize, in the case of without departing from spirit and scope of the present utility model, can by with various different in the way of to described
Embodiment is modified.Therefore, accompanying drawing and description are inherently illustrative, rather than for limiting the protection of claim
Scope.
As shown in figure 1, novel silage machine hydraulic travel system, including two running motors 11, described running motor 11 is even
It is connected to decelerator 12 and flushing valve 13, each described running motor 11 correspondence is connected with a traveling pump 2, described running motor 11
It is connected with brake control valve group 3, described traveling pump 2 is connected with controller (not shown), and described controller is connected with walking
Handle and steering tiller (not shown), the oil-feed of the oil return opening of each described running motor 11 and corresponding described traveling pump 2
Mouth is connected by low pressure line 21, and the oil-out of described traveling pump 2 passes through high pressure with the oil-in of corresponding described running motor 11
Pipeline 22 connects；
It is connected with automatic oil recharging device, described automatic oil recharging device between described low pressure line 21 and described pressure duct 22
Including the oil absorption filter 51 connecting with fuel tank 4, described oil absorption filter 51 is connected with slippage pump 52, and described slippage pump 52 connects
There is pressure piping filter 53, the oil-out of described pressure piping filter 53 is connected with repairing main line 54, described repairing master
Pipeline 54 connects two repairing bye-passes 55 being connected respectively with described pressure duct 22 and described low pressure line 21, described in each
Counterflow-preventing safety device is provided with repairing bye-pass 55, described counterflow-preventing safety device includes being arranged on described repairing bye-pass
Check valve 61 on 55, described check valve 61 is parallel with a relief valve 62, and in order to prevent system overload, check valve 61 is used for auxiliary
Help slippage pump 52 two-way oil compensation, make relief valve 62 all play overload protective function in both direction；Set on described repairing main line 54
It is equipped with over-pressure safety device, described over-pressure safety device includes the overflow valve 7 being connected with described repairing main line 54, overflow valve 7
Adjust oil compensation pressure.
Described brake control valve group 3 includes two two position three-way valves in parallel with described running motor 11 respectively, and described two
Position three-way valve is connected with described repairing main line 54.It is connected with bypass valve between described pressure duct 22 and described low pressure line 21
8, in order to connect pressure duct 22 and the low pressure line 21 of performance loop, bypass valve 8 makes machine in pump shaft or former dynamic to bypass valve 8
Can be dragged in the case of machine is out-of-operation.
Work process of the present utility model is：The pump shaft operating of driven by engine traveling pump 2, slippage pump 52 passes through oil suction
Filter 51, from fuel tank 4 oil suction, then passes through pressure piping filter 53 secondary filter, provides fluid for loop.Housing fluid leads to
Cross radiator 9 oil sump tank 4.Two traveling pumps 2 independently drive two running motors 11 in left and right to rotate, and motor passes through to slow down again
Device 12 drives road wheel rotation, because travel speed is relatively low, substantially can realize straight-line travelling requirement.Walking handle passes through to control
Device is controlling the discharge capacity of two traveling pumps 2, thus regulation speed, handle uniaxial strip friction positioning, forward driving handle vehicle to
Front traveling, driving handle vehicle travel backwards backward, promote stroke and car speed to be directly proportional.Steering tiller is also by controlling
Controlling Vehicular turn, twin shaft, without friction positioning, can allow the discharge capacity of left pump reduce, right side is or not device to the left during operation handle
Become, such vehicle will differential be turned to the left, when steering tiller operates on earth to the left, left side motor inverts, right side horse
Reach rotating forward, so can be achieved with pivot stud, to the right in the same manner.Brake control valve group 3 is used for controlling the high low speed of vehicle and staying
Car is braked, and its control pressure is provided by slippage pump 52.
The running gear of general hydrostatic drive has larger torque in low speed, wish output in high speed not only but also
Can be basically unchanged.This utility model can reach this requirement just, and traveling pump 2 adopts variable pump, and running motor 11 is using change
Amount motor.Adopt low speed during results, running motor 11 discharge capacity be adjusted to maximum, use variable pump speed governing, when traveling pump 2 discharge capacity by
Little change is big, until maximum, running motor 11 rotating speed increases, and output also increases therewith, now because of running motor 11 row
Amount is maximum, and running motor 11 can obtain maximum output torque.Using at a high speed during transition, the discharge capacity of traveling pump 2 is fixed on maximum
In value, with running motor 11 speed governing, running motor 11 discharge capacity is adjusted to minimum, running motor 11 rotating speed raises, output torque with
Reduction, now to be in peak power output state constant for traveling pump 2, therefore running motor 11 is in invariable power state.It can be seen that should
In terms of service behaviour, it has very big speed adjustable range to closed circuit, can carry out permanent torque again and invariable power is adjusted, and have higher
Work efficiency.
In this utility model, traveling pump 2 adopts axial plunger pump, discharge capacity 46cc/rev, and highest load pressure is 345bar,
Long-range force feed filters, and filtering accuracy is β _ 10=10, positive/negative to operational mode under can realize from the zero to maximum (top) speed scope
Interior electrodeless change, using the design concept of the axial plunger/piston shoes that are arranged in parallel, and to change pump with reference to a tilting swash plate
Discharge capacity, the direction of pump discharge fluid changes with swash plate direction change, thus realizing the rotation direction change of motor output shaft, comprises
One integrated slippage pump 52, provides for system and supplements hydraulic oil, cooling oil and SERVO CONTROL fluid, slippage pump 52 discharge capacity
13.9cc/rev, oil compensation pressure is set as 25bar, configuration auxiliary mounting flange, and for concatenating auxiliary hydraulic pump, high current is electric
Discharge capacity ratio controls (EDC), 24V.Running motor 11 adopts axial piston motor, huge discharge 51cc/rev, small displacement 34.8cc/
Rev, maximum system pressure 34.3Mpa, running motor 11 integration reducer 12, speed reducing ratio 31.3, the built-in parking of running motor 11
Brakes, parking braking release pressure minimum 1.5Mpa, maximum 4.9Mpa, the built-in flushing valve 13 of running motor 11, make system
The part deep fat outflow system of low-pressure side, is allowed to cool off and filters, and the pressure rinsing overflow valve 7 is set as XXMpa.Control
Device totally 50 stitch, 22 input ports, 16 delivery outlets, 2 CAN 2.0 B ports, ARM 32 bit Cortex-M3 computing frequency
Rate reaches 120MHz, and user develops program (Graphic User IDE) by PLUS+1GUIDE.
Traveling pump 2 carries auxiliary mounting flange, and running motor 11 is concatenated on the auxiliary mounting flange of traveling pump 2, notes
Need during installation to install an O-ring seal additional.The hydraulic oil coming from traveling pump 2 housing provides for the shaft coupling of auxiliary flange
Lubrication.Flange specification SAE B, internal shaft coupling specification 13 tooth, 16/32 diametral pitch.
Just because of any of the above advantage, along with axial plunger type variable capacity pump and variable displacement motor structure are ripe, produce work
Skill is good, greatly reduces cost, therefore this hydrostatic drive closed circuit has good application prospect on ensilage machine.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have been shown and described above.One's own profession
The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model is also
Have various changes and modifications, these changes and improvements both fall within the range of claimed this utility model.This utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (6)
1. novel silage machine hydraulic travel system, including two running motors, each described running motor correspondence is connected with one
Traveling pump, described running motor is connected with brake control valve group, and described traveling pump is connected with controller, and described controller is connected with
Walking handle and steering tiller it is characterised in that：The oil-feed of the oil return opening of each described running motor and corresponding described traveling pump
Mouth is connected by low pressure line, and the oil-out of described traveling pump is connected by pressure duct with the oil-in of corresponding described running motor
Connect；
It is connected with automatic oil recharging device, described automatic oil recharging device includes and oil between described low pressure line and described pressure duct
The oil absorption filter of case connection, described oil absorption filter is connected with slippage pump, and described slippage pump is connected with pressure piping filter,
The oil-out of described pressure piping filter is connected with repairing main line, described repairing main line connect two respectively with described height
Pressure pipe road and the repairing bye-pass of described low pressure line connection, each described repairing bye-pass are provided with counterflow-preventing and fill safely
Put, described repairing main line is provided with over-pressure safety device.
2. novel silage machine hydraulic travel system as claimed in claim 1 it is characterised in that：Described over-pressure safety device includes
The overflow valve being connected with described repairing main line.
3. novel silage machine hydraulic travel system as claimed in claim 1 it is characterised in that：Described running motor is connected with and subtracts
Fast device and flushing valve.
4. novel silage machine hydraulic travel system as claimed in claim 1 it is characterised in that：Described brake control valve group includes
Two two position three-way valves in parallel with described running motor respectively, described two position three-way valve is connected with described repairing main line.
5. novel silage machine hydraulic travel system as claimed in claim 1 it is characterised in that：Described pressure duct and described low
Pressure pipe is connected with bypass valve between road.
6. novel silage machine hydraulic travel system as claimed in claim 1 it is characterised in that：Described counterflow-preventing safety device bag
Include the check valve being arranged on described repairing bye-pass, described check valve is parallel with a relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686449.2U CN205951716U (en) | 2016-07-01 | 2016-07-01 | Novel ensilage machine hydraulic pressure traveling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686449.2U CN205951716U (en) | 2016-07-01 | 2016-07-01 | Novel ensilage machine hydraulic pressure traveling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205951716U true CN205951716U (en) | 2017-02-15 |
Family
ID=57968950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620686449.2U Expired - Fee Related CN205951716U (en) | 2016-07-01 | 2016-07-01 | Novel ensilage machine hydraulic pressure traveling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205951716U (en) |
-
2016
- 2016-07-01 CN CN201620686449.2U patent/CN205951716U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20170701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |