CN206972633U - Dumper hydraulic lifting system - Google Patents
Dumper hydraulic lifting system Download PDFInfo
- Publication number
- CN206972633U CN206972633U CN201720881957.0U CN201720881957U CN206972633U CN 206972633 U CN206972633 U CN 206972633U CN 201720881957 U CN201720881957 U CN 201720881957U CN 206972633 U CN206972633 U CN 206972633U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- power takeoff
- pump
- elevating ram
- 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
Links
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
Abstract
The utility model discloses a kind of dumper hydraulic lifting system, including elevating ram and the oil pump of power takeoff device power connector, the three position three-way change valve that is arranged between oil pump and elevating ram；Fuel feed pump and the fuel sucking pipe connected with hydraulic oil container are connected with oil pump, petroleum pipeline is connected with elevating ram, the oil inlet that three position three-way change valve includes keeping connecting with fuel feed pump, the oil-out connected with petroleum pipeline holding and the oil return opening connected with hydraulic oil container holding；The lifting operation range that can be lifted when three position three-way change valve includes that the gear that is stopped for stopping lifting can be realized when only oil inlet connect with oil return opening, only oil inlet connects with oil-out, the draining operation range that draining can be realized when oil inlet and the connection of oil-out and oil return opening；The pressure sensor and control circuit of detection oil transportation pipe pressure are connected with petroleum pipeline, control circuit electrically connects with power takeoff device.The hoisting system is simple in construction, there is overload protection function.
Description
Technical field
It the utility model is related to a kind of dumper hydraulic lifting system.
Background technology
At present, many users, can be by changing the limitation in hydraulic lifting pipeline after medium and heavy dumper is bought privately
The overflow valve of hydraulic lifting pipeline maximum pressure, to improve the jacking capacity to compartment, then realize overload transportation；By repacking
Vehicle afterwards is serious due to often overloading, and causes when unloading lifting, hydraulic lifting system internal pressure is generally too high, then leads
The key components and parts premature failures such as oil cylinder, gear oil pump are caused, cause vehicle that there is larger potential safety hazard.In view of the above problems,
In order to reduce the harm that user's private self-adjusting system maximum pressure is brought, it is therefore necessary to which user's private can be improved by redesigning one kind
From the difficulty of repacking hydraulic lifting pipeline, while the pressure in automatic detection hydraulic lifting pipeline can be realized, and root is different
Pressure parameter adjusts power takeoff working condition, so as to realize the dumper hydraulic lifting system with overload protection function.
Utility model content
The technical problems to be solved in the utility model be to provide it is a kind of simple in construction, it is easy to use, there is overload protection work(
The dumper hydraulic lifting system of energy.
In order to solve the above technical problems, the utility model include being used to lift compartment elevating ram, take with dumper
The oil pump of power device device power connector, the three position three-way change valve being arranged between oil pump and elevating ram；Connect on the oil pump
Fuel feed pump and the fuel sucking pipe connected with hydraulic oil container are connected to, petroleum pipeline is connected with the elevating ram, the 3-position-3-way changes
Keep connecting including the oil inlet connected with fuel feed pump holding, the oil-out connected with petroleum pipeline holding and with hydraulic oil container to valve
Oil return opening；The three position three-way change valve includes to realize that elevating ram stops lifting when only oil inlet connects with oil return opening
Be stopped gear, lifting operation range that elevating ram lifted can be realized when only oil inlet connects with oil-out, when entering
Hydraulic fluid port can realize the draining operation range of elevating ram draining when being connected with oil-out with oil return opening；It is connected with the petroleum pipeline
The pressure sensor of oil transportation pipe pressure is detected, the pressure sensor electrically connects with control circuit, the control circuit and power taking
Device device is electrically connected so as to control the action of power takeoff device.
After said structure, power takeoff device is first controlled to drive operation of oil pump, and when needing to lift compartment, then adjust
The valve element of three position three-way change valve is so that three position three-way change valve is in lifting operation range, now, the hydraulic pressure that oil pump exports
Oil sequentially passes through fuel feed pump, oil inlet, three position three-way change valve, oil-out, petroleum pipeline, and enters in elevating ram, if car
Railway carriage or compartment load is normal, then can be by carriage lifting, still, if compartment overloads, and pressure sensor is by signal output to control circuit, control
Circuit processed controls power takeoff device action, and disconnects the transmission between power takeoff device and vehicle gear box, and now, oil pump stops
Work, therefore can not lift；In addition, when needing to stop carriage lifting, control three position three-way change valve makes it be operated in stopping
Operation range, now, the hydraulic oil of oil pump output sequentially pass through fuel feed pump, oil inlet, three position three-way change valve, oil return opening, and
Flow directly into hydraulic oil container, and because the oil-out of three position three-way change valve is in closed state, therefore the oil in petroleum pipeline
Also can not be discharged from three position three-way change valve, so as to realize that elevating ram can not stretch；In addition, when needing to fall compartment, control
Three position three-way change valve processed makes it be operated in draining operation range, and now, the hydraulic oil of oil pump output sequentially passes through fuel feed pump, entered
Hydraulic fluid port, three position three-way change valve, oil return opening, and flow directly into hydraulic oil container, and the hydraulic oil in elevating ram is also through defeated
Oil pipe, oil-out, three position three-way change valve and oil return opening, also flow into hydraulic oil container, therefore, the hydraulic oil that is exported in oil pump and
Hydraulic oil in elevating ram is all discharged into hydraulic oil container, therefore, realizes the landing in compartment；Secondly, oil pump can be at three three
Logical reversal valve is under three kinds of working conditions and can keep not shutting down work, avoids needing to stop carriage lifting in the prior art
When or when falling compartment, it is necessary to individually stop the operator scheme of operation of oil pump, so as to facilitate driver to operate and realize compartment
Lifting and landing.
The check valve for preventing that hydraulic oil from flowing back is in series with the fuel feed pump.
In order to further prevent system overcharge, overflow is connected with the fuel feed pump pipeline section between check valve and oil pump
Manage, be connected with overflow valve on the overflow pipe, the oil-out of the overflow valve connects with hydraulic oil container.
The power takeoff device includes the power takeoff being arranged on gearbox, the output shaft of the power takeoff and oil pump it is defeated
Enter axis connection, the driven gear for being engaged or separating with the output gear in gearbox is provided with the power takeoff, it is described
Drive mechanism and control drive mechanism that control driven gear is engaged or separated with output gear are installed on power takeoff
The magnetic valve acted, the control circuit are electrically connected with the solenoid valve.
In order to facilitate operation three position three-way change valve, the three position three-way change valve commutates for manual manipulation formula 3-position-3-way
Valve.
In order to which hydraulic oil is filtered, filter is in series with the fuel sucking pipe.
The elevating ram is multi-stage expansion oil cylinder.
In summary, the utility model is simple in construction, easy for operation, easy to maintain, and has dual antioverloading work(
Energy, the service life of hoisting system can be improved.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to the drawings, the dumper hydraulic lifting system includes being used to lift compartment elevating ram 1, with dumper
The oil pump 2 of power takeoff device power connector and the three position three-way change valve 3 being arranged between oil pump 2 and elevating ram 1；For
The lift height in lifting compartment, the elevating ram 1 preferred multi-stage expansion oil cylinder；In addition, the power takeoff device is prior art,
The power takeoff device generally includes the power takeoff 13 being arranged on gearbox, and the power takeoff 13 is also prior art, the power takeoff
13 output shaft and the input axis connection of oil pump 2, so as to drive oil pump 2 to work, it is provided with and dumper in the power takeoff 13
The driven gear that output gear in gearbox is engaged or separated, and in order to control driven gear to be carried out with output gear
Engagement separates, the magnetic valve 14 that the drive mechanism and control drive mechanism being also equipped with power takeoff 13 are acted, mesh
Before, drive mechanism of the prior art generally includes hydraulic drive mechanism or pneumatic drive mechanism, i.e., is controlled by magnetic valve 14
System enters the hydraulic oil or high pressure gas of drive mechanism, so that drive mechanism driving driven gear or output gear are slided
Move and realize both separation or engagement, then input the power that vehicle gear box exports to oil pump 2 by power takeoff 13
And drive oil pump 2 to work, accordingly, it is additionally provided with the driver's cabin of vehicle and is opened for the power takeoff control for controlling magnetic valve 14 to work
Close 16；With continued reference to accompanying drawing, fuel feed pump 6 and the fuel sucking pipe 5 connected with hydraulic oil container 4, elevating ram 1 are also associated with oil pump 2
On be connected with petroleum pipeline 7, and the three position three-way change valve 3 then includes keeping the oil inlet and petroleum pipeline 7 that connects with fuel feed pump 6
The oil return opening for keeping the oil-out of connection and being connected with the holding of hydraulic oil container 4；Secondly, the three position three-way change valve 3 includes only entering
Hydraulic fluid port can realize that elevating ram 1 stops the gear that is stopped of lifting, only oil inlet connects with oil-out when being connected with oil return opening
When can realize lifting operation range that elevating ram 1 lifted, can be realized when oil inlet connects with oil-out with oil return opening
The draining operation range of the draining of elevating ram 1, the three position three-way change valve 3 can realize that above-mentioned three kinds of operation ranges are at three three
Open up what corresponding logical oil groove was realized on the valve element of logical reversal valve 3, therefore, valve element is slid onto into corresponding operating position can be real
Existing above-mentioned three kinds of operation ranges, as shown in figure 1, when valve element is located at middle position, three position three-way change valve 3 is in the shelves that are stopped
Position；After valve element slides to the right, three position three-way change valve 3 is in draining operation range；After valve element slides to the left, 3-position-3-way
Reversal valve 3 is in lifting operation range.In addition, in order to detect the pressure in petroleum pipeline 7, so as to when being overloaded in compartment, stop
Oil pump 2 works, and then realizing to lift, the pressure sensor 8 being also associated with the petroleum pipeline 7, pressure sensor 8 and control
Circuit 9 electrically connects, and control circuit 9 electrically connects with the magnetic valve 14 of power takeoff device.
With continued reference to accompanying drawing, in order to avoid the hydraulic oil in three position three-way change valve 3 is back in oil pump 2, on fuel feed pump 6
It is in series with the check valve 10 for preventing that hydraulic oil from flowing back；In addition, in order to further prevent system overcharge, positioned at check valve 10 and oil
Be connected with overflow pipe 11 on the pipeline section of fuel feed pump 6 between pump 2, be connected with overflow valve 12 on overflow pipe 11, overflow valve 12 it is fuel-displaced
Mouth connects with hydraulic oil container 4；And three position three-way change valve 3 is operated for convenience, three position three-way change valve 3 is preferably manual manipulation
Formula three position three-way change valve；In addition, in order to suck oil pump 2 again after hydraulic oil is filtered, filter is in series with fuel sucking pipe 5
15。
Therefore, when dumper uses the utility model, power takeoff device can be first controlled to drive oil pump 2 to work, and working as needs
When lifting compartment, then the valve element of three position three-way change valve 3 is adjusted so that three position three-way change valve 3 is in lifting work shelves
Position, now, the hydraulic oil that oil pump 2 exports sequentially pass through fuel feed pump 6, oil inlet, three position three-way change valve 3, oil-out, petroleum pipeline
7, and enter in elevating ram 1, can be by carriage lifting if compartment load is normal, still, if compartment overloads, pressure passes
Signal output to control circuit 9, control circuit 9 are controlled magnetic valve 14 to act by sensor 8, and disconnect power takeoff 13 and gearbox
Transmission, now, oil pump 2 is stopped, therefore can not lift；In addition, when needing to stop carriage lifting, control 3-position-3-way changes
It is operated in the gear that is stopped to valve 3, now, oil pump 2 export hydraulic oil sequentially pass through fuel feed pump 6, oil inlet, three
Three-way diverter valve 3, oil return opening, and flow directly into hydraulic oil container 4, and the oil in petroleum pipeline 7 is in closed due to oil-out
State, therefore can not also discharge, so as to realize that elevating ram 1 can not stretch；In addition, when needing to fall compartment, three three are controlled
Logical reversal valve 3 makes it be operated in draining operation range, now, the hydraulic oil that oil pump 2 exports sequentially pass through fuel feed pump 6, oil inlet,
Three position three-way change valve 3, oil return opening, and flow directly into hydraulic oil container 4, and the hydraulic oil in elevating ram 1 is also through oil transportation
Pipe 7, oil-out, three position three-way change valve 3 and oil return opening, also flow into hydraulic oil container 4, therefore, the hydraulic oil exported in oil pump 2
All it is discharged into hydraulic oil container 4 with the hydraulic oil in elevating ram 1, therefore, realizes the landing in compartment；Secondly, oil pump 2 can be three
Position three-way diverter valve 3 is under three kinds of working conditions and can keep not shutting down work, so as to avoid needing to stop in the prior art
Only, it is necessary to individually stop the operator scheme that oil pump 2 works, so as to facilitate driver to operate during carriage lifting or when falling compartment
With the lifting and landing for realizing compartment.
In summary, the utility model is not limited to above-mentioned embodiment.Those skilled in the art, this reality is not being departed from
On the premise of with new spirit and scope, some change and modification can be done, it is new that all these changes all should fall into this practicality
The protection domain of type.
Claims (7)
- A kind of 1. dumper hydraulic lifting system, it is characterised in that：Including the elevating ram for lifting compartment（1）And from The oil pump for the power takeoff device power connector unloaded（2）, be arranged on oil pump（2）With elevating ram（1）Between 3-position-3-way change To valve（3）；The oil pump（2）On be connected with fuel feed pump（6）With with hydraulic oil container（4）The fuel sucking pipe of connection（5）, the lifting oil Cylinder（1）On be connected with petroleum pipeline（7）, the three position three-way change valve（3）Including with fuel feed pump（6）The oil inlet of holding connection, With petroleum pipeline（7）Keep the oil-out and and hydraulic oil container of connection（4）Keep the oil return opening of connection；The three position three-way change valve （3）Including elevating ram can be realized when only oil inlet connects with oil return opening（1）The gear that is stopped of stopping lifting, only oil inlet Elevating ram can be realized when being connected with oil-out（1）The lifting operation range that is lifted, when oil inlet and oil-out and oil return Elevating ram can be realized during mouth connection（1）The draining operation range of draining；The petroleum pipeline（7）On be connected with detection petroleum pipeline （7）The pressure sensor of pressure（8）, the pressure sensor（8）With control circuit（9）Electrical connection, the control circuit（9）With Power takeoff device is electrically connected so as to control the action of power takeoff device.
- 2. dumper hydraulic lifting system as claimed in claim 1, it is characterised in that:The fuel feed pump（6）On be in series with The check valve for preventing hydraulic oil from flowing back（10）.
- 3. dumper hydraulic lifting system as claimed in claim 2, it is characterised in that:Positioned at check valve（10）With oil pump （2）Between fuel feed pump（6）Overflow pipe is connected with pipeline section（11）, the overflow pipe（11）On be connected with overflow valve（12）, institute State overflow valve（12）Oil-out and hydraulic oil container（4）Connection.
- 4. dumper hydraulic lifting system as claimed in claim 1, it is characterised in that:The power takeoff device includes installation Power takeoff on gearbox（13）, the power takeoff（13）Output shaft and oil pump（2）Input axis connection, the power takeoff （13）It is interior provided with the driven gear for being engaged or separating with the output gear in gearbox, the power takeoff（13）Upper installation There are the drive mechanism that control driven gear is engaged or separated with output gear and the electricity that control drive mechanism is acted Magnet valve（14）, the control circuit（9）With magnetic valve（14）Electrical connection.
- 5. the dumper hydraulic lifting system as described in claim 1-4 is any, it is characterised in that:The 3-position-3-way commutation Valve（3）For manual manipulation formula three position three-way change valve.
- 6. dumper hydraulic lifting system as claimed in claim 5, it is characterised in that:The fuel sucking pipe（5）On be in series with Filter（15）.
- 7. dumper hydraulic lifting system as claimed in claim 5, it is characterised in that:The elevating ram（1）For multistage Telescopic oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720881957.0U CN206972633U (en) | 2017-07-20 | 2017-07-20 | Dumper hydraulic lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720881957.0U CN206972633U (en) | 2017-07-20 | 2017-07-20 | Dumper hydraulic lifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972633U true CN206972633U (en) | 2018-02-06 |
Family
ID=61402908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720881957.0U Expired - Fee Related CN206972633U (en) | 2017-07-20 | 2017-07-20 | Dumper hydraulic lifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972633U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156208A (en) * | 2018-11-08 | 2020-05-15 | 陕西汽车集团有限责任公司 | Unmanned mining vehicle lifting control system and method and mining vehicle |
| CN112483515A (en) * | 2020-12-08 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Self-discharging vehicle lifting control circuit, device and self-discharging vehicle |
-
2017
- 2017-07-20 CN CN201720881957.0U patent/CN206972633U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156208A (en) * | 2018-11-08 | 2020-05-15 | 陕西汽车集团有限责任公司 | Unmanned mining vehicle lifting control system and method and mining vehicle |
| CN111156208B (en) * | 2018-11-08 | 2022-07-12 | 陕西汽车集团股份有限公司 | Unmanned mining vehicle lifting control system and method and mining vehicle |
| CN112483515A (en) * | 2020-12-08 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Self-discharging vehicle lifting control circuit, device and self-discharging vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201962040U (en) | Forklift hydraulic system with functions of priority and unloading | |
| CN203879828U (en) | Hydraulic control system for lateral-loading compression-type garbage truck | |
| CN2892805Y (en) | Motor rotational speed memory hoisting braker control device | |
| CN102862316B (en) | Press machine and hydraulic control system thereof | |
| CN201309504Y (en) | System for lifting and steering a rigid mine self-dumping truck | |
| CN206972633U (en) | Dumper hydraulic lifting system | |
| CN101428640B (en) | Integrated diesel fork lift truck dynamic state signal load sensing hydraulic steering system | |
| CN113790182B (en) | Arm support dead weight retraction control system and control method | |
| CN108679012A (en) | A kind of readjustment machine large arm fluid power system | |
| CN103883573B (en) | Jib hydraulic control system and port loading and unloading machinery | |
| CN105179341B (en) | Waste transportation vehicle hydraulic system and rubbish van | |
| CN206511860U (en) | The emergent lowering system of Closed Hydraulic Driving raising elevator | |
| CN103030064A (en) | Control system and control method of engineering machinery equipment | |
| CN101367347B (en) | Lifting and steering control method and system of self-discharging vehicle for rigid mining | |
| CN112594240B (en) | Hydraulic system of working device, control method and electric loader | |
| CN2837570Y (en) | Pneumatic control device for hydraulic unloading mechanism of self-unloading vehicle | |
| CN1970426A (en) | Differential pressure control method for preventing crane secondary lifting and sliding | |
| CN203717497U (en) | Cantilever crane hydraulic control system and harbor handling machinery | |
| CN109458366A (en) | A kind of Mining loader tool pneumatically turns hydraulic booster discharge system | |
| CN201580934U (en) | Crane and winch hydraulic control system thereof, liquid-filling integrated valve used for system | |
| CN108194457A (en) | Hydraulic jacking system and derrick crane | |
| CN102674210B (en) | Lift converging multiway valve | |
| CN201343061Y (en) | Integrated internal combustion forklift dynamic signal load sensing hydraulic steering system | |
| CN202805720U (en) | Press machine hydraulic control system and press machine | |
| CN207701491U (en) | Double speed down type hydraulic power unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20180720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |