CN206129754U - Tipping trailer hydraulic power units - Google Patents
Tipping trailer hydraulic power units Download PDFInfo
- Publication number
- CN206129754U CN206129754U CN201621018590.1U CN201621018590U CN206129754U CN 206129754 U CN206129754 U CN 206129754U CN 201621018590 U CN201621018590 U CN 201621018590U CN 206129754 U CN206129754 U CN 206129754U
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- valve
- oil
- pump seat
- directional control
- solenoid directional
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Abstract
The utility model relates to a tipping trailer hydraulic power units. Direct current motor's output shaft and the input shaft of gear pump, into oil pipe is connected to the inlet port of gear pump, advances the oil pipe end and stretches into under the fluid liquid level to the oil tank in, the oil -out of gear pump and the access connection of check valve, the export of check valve is connected with magenetic exchange valve's p mouth, magenetic exchange valve's a mouth and the access connection of electromagnetism unloading valve, the export of electromagnetism unloading valve when using with the no pole chamber intercommunication of tipping trailer pneumatic cylinder, magenetic exchange valve's b mouth when using with the tipping trailer pneumatic cylinder have a pole chamber intercommunication, magenetic exchange valve's the t mouth and the access connection of back pressure valve, the export and time oil pipe of back pressure valve are connected. The utility model discloses compact structure, efficient, the noise is little, energy -concerving and environment -protective, do not have fixed traction vehicle head, can realize that power rises, the load keeps, powered lowering and gravity lowering function to can alleviate the impact that the decline in -process brought owing to hydraulic oil oil return unstability.
Description
Technical field
This utility model is related to self-discharging trailer hydraulic system, and specifically one kind can realize that power rises, load is protected
Hold, power dropping and gravity decline the self-discharging trailer hydraulic power unit of function.
Background technology
The self-discharging trailer hydraulic system of domestic production is generally the hydraulic system of discrete type, typically by hydraulic pump and self-unloading
The electromotor of trailer headstock is connected, and is connected with the hydraulic jack at compartment by oil pipe, realizes self-unloading function.Connected using long oil pipe
Pick up dismounting that the hydraulic jack at the hydraulic pump and compartment of head is it and maintenance increased difficulty, and by headstock electromotor
Power is provided and also results in the problems such as noise is big, and environmental pollution is serious.In addition, existing self-discharging trailer hydraulic system is set due to structure
The defect of meter so that hydraulic system volume is big, performance general, motility not enough, can not meet many of self-discharging trailer market
Sample, integrated development trend.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of self-discharging trailer hydraulic power
Unit, its compact conformation, efficiency high, noise are little, energy-conserving and environment-protective, without fixed traction headstock, it is possible to achieve power rises, load is protected
Hold, power dropping and gravity decline function, and can alleviate decline during bring because hydraulic oil oil return is unstable rush
Hit.
According to the technical scheme that this utility model is provided：Self-discharging trailer hydraulic power unit, including fuel tank, direct current generator,
Gear pump, check valve, solenoid directional control valve, unloading electromagnetic valve, counterbalance valve, oil return pipe and oil inlet pipe；The output of the direct current generator
Axle is connected with the input shaft of gear pump, and the inlet port connection oil inlet pipe of the gear pump, the oil-feed pipe end stretches to fuel tank
Under interior fluid liquid level；The oil-out of the gear pump is connected with the import of check valve, the outlet of the check valve and electromagnetism
The p mouths connection of reversal valve, a mouths of solenoid directional control valve are connected with the import of unloading electromagnetic valve, and the outlet of unloading electromagnetic valve is in application
When connect with the rodless cavity of self-discharging trailer hydraulic cylinder, the b mouths of solenoid directional control valve using when have bar with self-discharging trailer hydraulic cylinder
Chamber connects, and the t mouths of solenoid directional control valve are connected with the import of counterbalance valve, and the outlet of the counterbalance valve is connected with oil return pipe.
Used as further improvement of the utility model, the t mouths of the solenoid directional control valve are also associated with trans check valve, described
The outlet of trans check valve is connected with a mouths of solenoid directional control valve.
Used as further improvement of the utility model, the hydraulic power unit also includes pump seat, and the direct current generator is consolidated
Dingan County is mounted in the flange rear end of pump seat, and the gear pump is fixedly mounted on the flange front end of pump seat, the input shaft of gear pump with it is straight
The output shaft of stream motor is connected by shaft coupling；The check valve, solenoid directional control valve and unloading electromagnetic valve are arranged on pump seat, institute
State trans check valve and counterbalance valve is arranged on pump seat and is placed in fuel tank, the oil return pipe is arranged on pump seat flange face and position
In fuel tank, pump seat is provided with pump seat oil-in, the first hydraulic fluid port and the second hydraulic fluid port；The oil-out of the gear pump and pump seat oil-feed
Mouth connection, pump seat oil-in is connected by the oil duct in pump seat with the import of check valve, and the outlet of check valve is by pump seat
Oil duct is connected with the p mouths of solenoid directional control valve, and a mouths of solenoid directional control valve are connected by the oil duct in pump seat with the import of unloading electromagnetic valve
Connect, the outlet of unloading electromagnetic valve is connected to the first hydraulic fluid port by the oil duct in pump seat, the first hydraulic fluid port using when and self-discharging trailer
The rodless cavity connection of hydraulic cylinder；The b mouths of solenoid directional control valve are connected to the second hydraulic fluid port by the oil duct in pump seat, and the second hydraulic fluid port is being answered
Used time connects with the rod chamber of self-discharging trailer hydraulic cylinder；The t mouths of solenoid directional control valve lead up to oil duct and counterbalance valve in pump seat
Import connection, the oil duct separately led up in pump seat is connected with the import of trans check valve, and the outlet of the counterbalance valve passes through
Oil duct in pump seat is connected with oil return pipe, and the outlet of the trans check valve is by the oil duct in pump seat and a of solenoid directional control valve
Mouth connection.
Used as further improvement of the utility model, the oil-feed pipe end installs oil absorption filter.
Used as further improvement of the utility model, the hydraulic power unit also includes remote controllers, described long-range
Controller is connected respectively with direct current generator, solenoid directional control valve and unloading electromagnetic valve.
As further improvement of the utility model, system is connected between the gear pump outlet and check valve inlet and is overflow
Stream valve, the outlet of the system overflow valve is connected to fuel tank by overflow return line.
Used as further improvement of the utility model, the b mouths of the solenoid directional control valve are connected with low pressure relief valve, described low
The outlet of pressurized overflow valve is connected to fuel tank by overflow return line.
This utility model compared with prior art, has the advantage that：
1）This utility model compact conformation, efficiency high, noise are little, energy-conserving and environment-protective, without fixed traction headstock, it is possible to achieve dynamic
Power rises, load keeps, power dropping and gravity decline function.
2）, this utility model is by the integrated pump seat of design height so that the oil circuit pressure of whole hydraulic power unit
Loss is little, and pump seat small volume, lightweight, low cost.
3）, this utility model be designed with multifunctional remote controller 14, it is easy to operate, it is safe and reliable.
4）, this utility model be designed with trans check valve and counterbalance valve to use cooperatively, system tankage can be reduced,
And counterbalance valve can be alleviated during decline due to the unstable impact for bringing of hydraulic oil oil return.
Description of the drawings
Fig. 1 is the hydraulic schematic diagram of this utility model embodiment.
Fig. 2 is the structural representation of this utility model embodiment.
Specific embodiment
With reference to concrete drawings and Examples, the utility model is described in further detail.
As shown in the figure：Self-discharging trailer hydraulic power unit in embodiment is mainly by fuel tank 1, oil absorption filter 2, unidirectional current
It is machine 3, gear pump 4, system overflow valve 5, check valve 6, solenoid directional control valve 7, unloading electromagnetic valve 8, low pressure relief valve 9, trans unidirectional
Valve 10, counterbalance valve 11, remote controllers 14, pump seat 15, shaft coupling 16, oil return pipe 17 and oil inlet pipe 18 etc. are constituted.
As shown in Figure 1 and Figure 2, the direct current generator 3 is fixedly mounted on the flange rear end of pump seat 15, and the gear pump 4 is fixed
Installed in the flange front end of pump seat 15, the input shaft of gear pump 4 is connected with the output shaft of direct current generator 3 by shaft coupling 16；Institute
The inlet port connection oil inlet pipe 18 of gear pump 4 is stated, the end of the oil inlet pipe 18 is stretched under the fluid liquid level in fuel tank 1；Institute
Check valve 6, solenoid directional control valve 7 and unloading electromagnetic valve 8 are stated on pump seat 15, the trans check valve 10 and counterbalance valve 11 are pacified
It is mounted on pump seat 15 and is placed in fuel tank 1, the oil return pipe 17 is arranged on the flange face of pump seat 15 and is located in fuel tank 1, pump seat
15 are provided with pump seat oil-in, the first hydraulic fluid port 12 and the second hydraulic fluid port 13；The oil-out of the gear pump 4 connects with pump seat oil-in
Logical, pump seat oil-in is connected by the oil duct in pump seat 15 with the import of check valve 6, and the outlet of check valve 6 is by pump seat 15
Oil duct be connected with the p mouths of solenoid directional control valve 7, a mouths of solenoid directional control valve 7 are by the oil duct in pump seat 15 and unloading electromagnetic valve 8
Import connection, the outlet of unloading electromagnetic valve 8 is connected to the first hydraulic fluid port 12 by the oil duct in pump seat 15, and the first hydraulic fluid port 12 is being answered
Used time connects with the rodless cavity of self-discharging trailer hydraulic cylinder；The b mouths of solenoid directional control valve 7 are connected to second by the oil duct in pump seat 15
Hydraulic fluid port 13, the second hydraulic fluid port 13 using when connect with the rod chamber of self-discharging trailer hydraulic cylinder；The t mouth a-road-throughs of solenoid directional control valve 7
The oil duct crossed in pump seat 15 is connected with the import of counterbalance valve 11, separately leads up to oil duct and trans check valve 10 in pump seat 15
Import connects, and the outlet of the counterbalance valve 11 is connected by the oil duct in pump seat 15 with oil return pipe 17, the trans check valve 10
Outlet be connected with a mouths of solenoid directional control valve 7 by the oil duct in pump seat 15.
As shown in Figure 1 and Figure 2, in the present embodiment, oil absorption filter 2 is installed in the end of the oil inlet pipe 18, so can ensure that
It is clean into the hydraulic oil in oil circuit, it is to avoid oil circuit is blocked.
As shown in Figure 1 and Figure 2, in the present embodiment, the hydraulic power unit medium-long range controller 14 and direct current generator 3, electricity
Magnetic reversal valve 7 and unloading electromagnetic valve 8 connect respectively, starting or stoping for the control direct current generator 3 of remote controllers 14, control electromagnetism
Reversal valve 7 and unloading electromagnetic valve 8 dead electricity.
As shown in Figure 1 and Figure 2, in the present embodiment, the gear pump 4 export be connected with and the import of check valve 6 between system overflow
Stream valve 5, the outlet of the system overflow valve 5 is connected to fuel tank 1 by overflow return line.The b mouths of the solenoid directional control valve 7 connect
Low pressure relief valve 9 is connected to, the outlet of the low pressure relief valve 9 is connected to fuel tank 1 by overflow return line.
Operation principle of the present utility model is as follows：
During lifting process：External power source is connected, the rising button of remote controllers 14 is pressed, direct current generator 3 starts, electromagnetism
Reversal valve 7 obtains electric, and direct current generator 3 drives gear pump 4, gear pump 4 to enter pump from oil suction in fuel tank 1, fluid by shaft coupling 16
Seat 15, it is unidirectional fuel-displaced by the check valve 6 on pump seat 15；Now solenoid directional control valve 7 is located at right position, and fluid enters electromagnetism
The p mouths of reversal valve 7, the then fuel-displaced hydraulic fluid port 12 of the unloading electromagnetic valves of Jing again 8 to the first of Jing a mouths, with self-discharging trailer hydraulic cylinder without bar
Chamber connects, and the piston rod of hydraulic cylinder starts to stretch out；And second hydraulic fluid ports of rod chamber inner fluid Jing 13 of hydraulic cylinder flow to electromagnetic switch
The b mouths of valve 7, Jing after t mouths are fuel-displaced again by returning in fuel tank 1 after counterbalance valve 11；When hydraulic cylinder is to specified location, unclamp
The rising button of remote controllers 14, the power-off of direct current generator 3, the pressurize of check valve 6, the pressurize of unloading electromagnetic valve 8, hydraulic cylinder stops not
It is dynamic.
During decline process：The decline button of remote controllers 14 is pressed, direct current generator 3 starts, unloading electromagnetic valve 8 obtains electric,
Solenoid directional control valve 7 electricity and must not be located at left position, and fluid is into the p mouths of solenoid directional control valve 7, and Jing b mouths are fuel-displaced to the second hydraulic fluid port 13, with
The rod chamber connection of self-discharging trailer hydraulic cylinder, the piston rod of hydraulic cylinder starts to retract, the rodless cavity inner fluid Jing first of hydraulic cylinder
Hydraulic fluid port 12 and unloading electromagnetic valve 8 flow to a mouths of solenoid directional control valve 7, open reverse check valve 6 Jing after t mouths are fuel-displaced and return to hydraulic pressure
In the rod chamber of cylinder, when hydraulic cylinder on earth after, unclamp decline button, the power-off of direct current generator 3.
When rising, declining process overload, the system overflow valve 5 and low pressure relief valve 9 provide guarantor can to hydraulic cylinder
Shield, when the load pressure of the first hydraulic fluid port 12 exceedes setting pressure, hydraulic oil can open system overflow valve 5 and carry out pressure release；When
When the load pressure of two hydraulic fluid ports 13 exceedes setting pressure, hydraulic oil can open low pressure relief valve 9 and carry out pressure release.
During decline, solenoid directional control valve 7 is located at left position, because fluid can be beaten Jing after the t mouths of solenoid directional control valve 7 are fuel-displaced
The rod chamber of the reverse flow of reverse check valve 6 to hydraulic cylinder is opened, part fluid is stored, so when next lifting action is carried out,
The first hydraulic fluid ports of fluid Jing 12 enter the rodless cavity of hydraulic cylinder, and piston rod ejection, the second hydraulic fluid ports of fluid Jing 13 in rod chamber are returned to
In fuel tank 1, fluid capacity needed for system is which reduced, reduce the volume of fuel tank 1.
Claims (7)
1. self-discharging trailer hydraulic power unit, including fuel tank（1）, direct current generator（3）, gear pump（4）, check valve（6）, electromagnetism changes
To valve（7）, unloading electromagnetic valve（8）, counterbalance valve（11）, oil return pipe（17）And oil inlet pipe（18）；The direct current generator（3）Output
Axle and gear pump（4）Input shaft connection, the gear pump（4）Inlet port connection oil inlet pipe（18）, the oil inlet pipe（18）
End stretches to fuel tank（1）Under interior fluid liquid level；The gear pump（4）Oil-out and check valve（6）Import connection,
The check valve（6）Outlet and solenoid directional control valve（7）P mouths connection, solenoid directional control valve（7）A mouths and unloading electromagnetic valve（8）
Import connection, unloading electromagnetic valve（8）Outlet using when connect with the rodless cavity of self-discharging trailer hydraulic cylinder, solenoid directional control valve
（7）B mouths using when connect with the rod chamber of self-discharging trailer hydraulic cylinder, solenoid directional control valve（7）T mouths and counterbalance valve（11）'s
Import connects, the counterbalance valve（11）Outlet and oil return pipe（17）Connection.
2. self-discharging trailer hydraulic power unit as claimed in claim 1, it is characterised in that：The solenoid directional control valve（7）T mouths
It is also associated with trans check valve（10）, the trans check valve（10）Outlet and solenoid directional control valve（7）A mouths connection.
3. self-discharging trailer hydraulic power unit as claimed in claim 2, it is characterised in that：The hydraulic power unit also includes
Pump seat（15）, the direct current generator（3）It is fixedly mounted on pump seat（15）Flange rear end, the gear pump（4）It is fixedly mounted on
Pump seat（15）Flange front end, gear pump（4）Input shaft and direct current generator（3）Output shaft pass through shaft coupling（16）It is connected；
The check valve（6）, solenoid directional control valve（7）And unloading electromagnetic valve（8）Installed in pump seat（15）On, the trans check valve（10）
And counterbalance valve（11）Installed in pump seat（15）Go up and be placed in fuel tank（1）It is interior, the oil return pipe（17）It is arranged on pump seat（15）Flange
On face and positioned at fuel tank（1）It is interior, pump seat（15）It is provided with pump seat（15）Oil-in, the first hydraulic fluid port（12）With the second hydraulic fluid port（13）；
The gear pump（4）Oil-out and pump seat（15）Oil-in is connected, pump seat（15）Oil-in passes through pump seat（15）Interior oil duct
With check valve（6）Import connection, check valve（6）Outlet pass through pump seat（15）Interior oil duct and solenoid directional control valve（7）P mouths
Connection, solenoid directional control valve（7）A mouths pass through pump seat（15）Interior oil duct and unloading electromagnetic valve（8）Import connection, electromagnetism off-load
Valve（8）Outlet pass through pump seat（15）Interior oil duct is connected to the first hydraulic fluid port（12）, the first hydraulic fluid port（12）Using when and self-unloading
The rodless cavity connection of trailer hydraulic cylinder；Solenoid directional control valve（7）B mouths pass through pump seat（15）Interior oil duct is connected to the second hydraulic fluid port
（13）, the second hydraulic fluid port（13）Using when connect with the rod chamber of self-discharging trailer hydraulic cylinder；Solenoid directional control valve（7）T mouths all the way
By pump seat（15）Interior oil duct and counterbalance valve（11）Import connection, separately lead up to pump seat（15）Interior oil duct and trans list
To valve（10）Import connection, the counterbalance valve（11）Outlet pass through pump seat（15）Interior oil duct and oil return pipe（17）Connection,
The trans check valve（10）Outlet pass through pump seat（15）Interior oil duct and solenoid directional control valve（7）A mouths connection.
4. self-discharging trailer hydraulic power unit as claimed in claim 1, it is characterised in that：The oil inlet pipe（18）Install end
Oil absorption filter（2）.
5. self-discharging trailer hydraulic power unit as claimed in claim 1, it is characterised in that：The hydraulic power unit also includes
Remote controllers（14）, the remote controllers（14）With direct current generator（3）, solenoid directional control valve（7）And unloading electromagnetic valve（8）Point
Do not connect.
6. self-discharging trailer hydraulic power unit as claimed in claim 1, it is characterised in that：The gear pump（4）Outlet and list
To valve（6）System overflow valve is connected between import（5）, the system overflow valve（5）Outlet connected by overflow return line
It is connected to fuel tank（1）.
7. self-discharging trailer hydraulic power unit as claimed in claim 1, it is characterised in that：The solenoid directional control valve（7）B mouths
It is connected with low pressure relief valve（9）, the low pressure relief valve（9）Outlet fuel tank is connected to by overflow return line（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621018590.1U CN206129754U (en) | 2016-08-31 | 2016-08-31 | Tipping trailer hydraulic power units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621018590.1U CN206129754U (en) | 2016-08-31 | 2016-08-31 | Tipping trailer hydraulic power units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129754U true CN206129754U (en) | 2017-04-26 |
Family
ID=58568772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621018590.1U Active CN206129754U (en) | 2016-08-31 | 2016-08-31 | Tipping trailer hydraulic power units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901599A (en) * | 2021-01-26 | 2021-06-04 | 中车青岛四方机车车辆股份有限公司 | Hydraulic power unit, carriage lifting system and rail vehicle |
-
2016
- 2016-08-31 CN CN201621018590.1U patent/CN206129754U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901599A (en) * | 2021-01-26 | 2021-06-04 | 中车青岛四方机车车辆股份有限公司 | Hydraulic power unit, carriage lifting system and rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214112 225, Jiangsu, Wuxi, New Town Industrial Zone Patentee after: Buch hydraulic (Wuxi) Co., Ltd. Address before: 214112 No. 225, tin Tai Road, Mei Village, Wuxi New District, Jiangsu Patentee before: WUXI DELI FLUID TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |