CN109838422A - A kind of combined railway large-scale maintenance machinery EMR emergency reset system - Google Patents
A kind of combined railway large-scale maintenance machinery EMR emergency reset system Download PDFInfo
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- CN109838422A CN109838422A CN201910193937.8A CN201910193937A CN109838422A CN 109838422 A CN109838422 A CN 109838422A CN 201910193937 A CN201910193937 A CN 201910193937A CN 109838422 A CN109838422 A CN 109838422A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 239000003921 oil Substances 0.000 claims description 89
- 239000010729 system oil Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a kind of combined railway large-scale maintenance machinery EMR emergency reset systems, including lampshade and low-lift pump, the inside of the lampshade is equipped with internal-axis type Special-purpose motor for oil pump, high-pressure pump is installed below the connecting shaft, the first fluid pressure line is installed below the high-pressure pump oil outlet, the surface of the low-lift pump offers low-lift pump oil outlet, the second fluid pressure line is installed below the low-lift pump oil outlet, low pressure output oil pipe is installed below the low pressure valve composition integrated unit, the low pressure valve composition integrated unit is internally provided with the first shut-off valve.Two sets of independent emergency system designs that the combined railway large-scale maintenance machinery EMR emergency reset system generallys use original big machine are combined into set of system, reduce installation space, EMR emergency reset efficiency is improved, the EMR emergency reset that can not only meet the apparatus for work of various large-scale maintenance machineries needs to meet the multiple needs of emergency of vehicle.
Description
Technical field
The present invention relates to railway maintenance equipment technical field, specially a kind of combined railway large-scale maintenance machinery emergency is multiple
Position system.
Background technique
Large-scale Railway road maintainance machinery is widely used in railroad maintenance operation process as a kind of efficient railway maintenance equipment
In, but since its structure is complicated, working condition is severe, in construction operation or operational process inevitably can faulty generation, such as
Occurring the failures such as engine or electrical system or hydraulic system suddenly in operation process causes apparatus for work that can not be recovered to fortune
Line position, so as to cause big machine can not quotient Hui Yunhang, these religion barriers processing may will affect the operation of subsequent vehicle not in time, even
Cannot such as reset in time after causing the generation of accident, big machine to slide down equally will cause serious consequence, generally pacify on big machine at present
Equipped with the Auxiliary Power Unit for apparatus for work EMR emergency reset, but the equipment is merely able to meet the needs (need of itself apparatus for work
The pressure wanted is lower), when vehicle occur and sliding down, which can not provide enough power (needing pressure higher)
Multiple use is played for vehicle, it is also necessary to it is further provided with set of system to meet requirement, this mode not only complicated but also low efficiency, needle
To the above problem, we have proposed a kind of combined railway large-scale maintenance machinery EMR emergency reset systems.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of combined railway large-scale maintenance machinery EMR emergency reset system
It proposes that the Auxiliary Power Unit for apparatus for work EMR emergency reset is generally installed on general big machine in background technique, but the equipment
It is merely able to meet the needs (pressure needed is lower) of itself apparatus for work, when there is vehicle and sliding down, the Auxiliary Power Unit
Enough power (needing pressure higher) can not be provided and play multiple use for vehicle, it is also necessary to which be further provided with set of system makes to meet
With requiring, this mode not only complicated but also low efficiency the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of combined railway large-scale maintenance machinery is met an urgent need
Reset system, including lampshade and low-lift pump, the inside of the lampshade are equipped with internal-axis type Special-purpose motor for oil pump, and internal-axis type oil pump
It is connected with connecting shaft below motor special, high-pressure pump is installed, and the surface of high-pressure pump is provided with below the connecting shaft
High-pressure pump oil outlet is equipped with the first fluid pressure line below the high-pressure pump oil outlet, and connects below the first fluid pressure line
It is connected to high pressure valve composition integrated unit, the surface of the low-lift pump offers low-lift pump oil outlet, and low-lift pump is located at high-pressure pump
Right side, the second fluid pressure line is installed below the low-lift pump oil outlet, and be connected with below the second fluid pressure line low
Pressure valve forms integrated unit, and low pressure output oil pipe, and low pressure output oil are equipped with below the low pressure valve composition integrated unit
It is connected with high and low pressure system communicating valve on the left of pipe, is provided with High voltage output oil pipe on the left of the high and low pressure system communicating valve,
The low pressure valve composition integrated unit is internally provided with the first shut-off valve, and is provided with throttle valve below the first shut-off valve,
First pressure gauge is installed below the throttle valve, and is provided with the first check valve on the left of first pressure gauge, described first
Low pressure relief valve is provided with below pressure gauge, the inside of the high pressure valve composition integrated unit is equipped with the second shut-off valve, and
It is provided with speed governing valve below second shut-off valve, is provided with second one-way valve below the speed governing valve, and second one-way valve
Lower section is fixed with high-pressure overflow valve, and second pressure gauge is equipped with below the high-pressure overflow valve, the High voltage output oil pipe
Lower section is provided with high-pressure shunting block, and hoisting device branching block is connected on the right side of high-pressure shunting block.
Preferably, the internal-axis type Special-purpose motor for oil pump between connecting shaft and high-pressure pump by being connected, and internal-axis type oil
It is set as welding between pump motor special and lampshade.
Preferably, equal between the outer dia of first fluid pressure line and the outer dia of high-pressure pump oil outlet, and
It is bonded between the lower surface of first fluid pressure line and the upper surface of high pressure valve composition integrated unit.
Preferably, the low-lift pump by low-lift pump oil outlet and the second fluid pressure line and low pressure valve form integrated unit it
Between be connected, and double structure is constituted between low-lift pump and high-pressure pump.
Preferably, between the low pressure output oil pipe and High voltage output oil pipe about high and low pressure system communicating valve it is vertical in
Heart line is symmetrical, and the lower surface of low pressure output oil pipe and the upper surface of hoisting device branching block are located in same horizontal line.
Preferably, the High voltage output oil pipe between high-pressure shunting block and hoisting device branching block by being connected, and rises
Apparatus for coating branching block includes an oil inlet, an oil outlet, six complex system oil circuit interfaces.
Compared with prior art, the beneficial effects of the present invention are: the combined railway large-scale maintenance machinery EMR emergency reset system
Two sets of independent emergency system designs that system generallys use original big machine are combined into set of system, reduce installation space, improve
EMR emergency reset efficiency, the EMR emergency reset needs that can not only meet the apparatus for work of various large-scale maintenance machineries can also meet
The emergency of vehicle plays multiple needs, and the internal-axis type Special-purpose motor for oil pump of the combined railway large-scale maintenance machinery EMR emergency reset system is logical
It crosses between connecting shaft and high-pressure pump and is connected, it is interior since the internal-axis type Special-purpose motor for oil pump of the device is set as internal-axis type
Shaft type Special-purpose motor for oil pump can be directly connected to without shaft coupling with high-pressure pump, so that installation space is reduced, the device low pressure valve group
Integrated unit specifically includes that the first shut-off valve, throttle valve, first pressure gauge, the first check valve and low pressure relief valve, the first cut-off
Valve and low pressure relief valve are used for the foundation of low-pressure system pressure, and throttle valve is used for the flow of regulating system, low-lift pump and high pressure
Constitute double structure between pump, it is special that high-pressure pump and low-lift pump using duplex form are mounted on internal-axis type oil pump by the axis of high-pressure pump
With on motor, connect by High voltage output oil pipe and vehicle re-railing equipment of meeting an urgent need, has been met an urgent need multiple power for providing the whole noon, height
Pressure valve group integrated unit includes: the second shut-off valve, speed governing valve, second one-way valve, high-pressure overflow valve and second pressure gauge, and second section
Only valve and high-pressure overflow valve are used for the foundation of high-pressure system pressure, and speed governing valve is used for the flow of regulating system and guarantees output pressure
Stabilization, the hoisting device branching block of the device include an oil inlet, an oil outlet, six rise complex system oil circuits connect
Mouthful, the connection of complex system oil circuit interface and hoisting device branching block is played by six, can be provided for the device and have been needed again
Oil liquid.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is that high pressure valve of the present invention forms integrated unit schematic diagram of internal structure；
Fig. 3 is that low pressure valve of the present invention forms integrated unit internal structure plate schematic diagram.
In figure: 1, lampshade, 2, internal-axis type Special-purpose motor for oil pump, 3, connecting shaft, 4, high-pressure pump, 5, low-lift pump, 6, high-pressure pump
Oil outlet, the 7, first fluid pressure line, 8, high pressure valve composition integrated unit, 9, low-lift pump oil outlet, the 10, second fluid pressure line, 11,
Low pressure valve forms integrated unit, 12, low pressure output oil pipe, 13, High voltage output oil pipe, 14, high and low pressure system communicating valve, and 15, the
One shut-off valve, 16, throttle valve, 17, first pressure gauge, the 18, first check valve, 19, low pressure relief valve, the 20, second shut-off valve,
21, speed governing valve, 22, second one-way valve, 23, high-pressure overflow valve, 24, second pressure gauge, 25, high-pressure shunting block, 26, hoisting device
Branching block.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of combined railway large-scale maintenance machinery EMR emergency reset
System, including lampshade 1 and low-lift pump 5, the inside of lampshade 1 is equipped with internal-axis type Special-purpose motor for oil pump 2, and internal-axis type oil pump is dedicated
The lower section of motor 2 is connected with connecting shaft 3, and internal-axis type Special-purpose motor for oil pump 2 passes through to be connected between connecting shaft 3 and high-pressure pump 4, and
It is set as welding between internal-axis type Special-purpose motor for oil pump 2 and lampshade 1, since the internal-axis type Special-purpose motor for oil pump 2 of the device is arranged
For internal-axis type, therefore internal-axis type Special-purpose motor for oil pump 2 can be directly connected to without shaft coupling with high-pressure pump, so that it is empty to reduce installation
Between, the lower section of connecting shaft 3 is equipped with high-pressure pump 4, and the surface of high-pressure pump 4 is provided with high-pressure pump oil outlet 6, high-pressure pump oil outlet
6 lower section is equipped with the first fluid pressure line 7, and the lower section of the first fluid pressure line 7 is connected with high pressure valve composition integrated unit 8, the
It is equal between the outer dia of one fluid pressure line 7 and the outer dia of high-pressure pump oil outlet 6, and the following table of the first fluid pressure line 7
It is bonded, the first fluid pressure line 7 is aligned with high-pressure pump oil outlet 6, so between face and the upper surface of high pressure valve composition integrated unit 8
Afterwards by the inside of the first fluid pressure line 7 insertion high-pressure pump oil outlet 6, so that between high-pressure pump 4 and high pressure valve composition integrated unit 8
It is connected, low pressure valve group integrated unit 8 specifically includes that the first shut-off valve 15, throttle valve 16, first pressure gauge 17, first are unidirectional
Valve 18 and low pressure relief valve 19, the first shut-off valve 15 and low pressure relief valve 19 are used for the foundation of low-pressure system pressure, and throttle valve
16 are used for the flow of regulating system, and the surface of low-lift pump 5 offers low-lift pump oil outlet 9, and low-lift pump 5 is located at high-pressure pump 4
Right side, the lower section of low-lift pump oil outlet 9 is equipped with the second fluid pressure line 10, and the lower section of the second fluid pressure line 10 is connected with low pressure
Valve group forms integrated unit with low pressure valve by low-lift pump oil outlet 9 and the second fluid pressure line 10 at integrated unit 11, low-lift pump 5
It is connected between 11, and constitutes double structure between low-lift pump 5 and high-pressure pump 4, high-pressure pump 4 and low-lift pump 5 uses duplex form
It is mounted on internal-axis type Special-purpose motor for oil pump 2 by the axis of high-pressure pump 5, has been met an urgent need by High voltage output oil pipe 13 with vehicle and set again
Standby connection has been met an urgent need multiple power for providing the whole noon, and high pressure valve group integrated unit 11 includes: the second shut-off valve 20, speed governing valve
21, second one-way valve 22, high-pressure overflow valve 23 and second pressure gauge 24, the second shut-off valve 20 and high-pressure overflow valve 23 are used for high pressure
The foundation of system pressure, speed governing valve 21 are used for the flow of regulating system and guarantee the stabilization of output pressure, and low pressure valve composition is integrated
The lower section of unit 11 is equipped with low pressure output oil pipe 12, and the left side of low pressure output oil pipe 12 is connected with high and low pressure system communicating valve
14, the vertical centerline between low pressure output oil pipe 12 and High voltage output oil pipe 13 about high and low pressure system communicating valve 14 is symmetrical,
And the lower surface of low pressure output oil pipe 12 and the upper surface of hoisting device branching block 26 are located in same horizontal line, High voltage output oil
Pipe 13 is connect with high-pressure shunting block 25, is mounted respectively to large size by exporting 2 High voltage output oil pipes 13 after distinguished and admirable piece 25 of high pressure
The vehicle frame rear and front end of road maintainance machinery, the left side of high and low pressure system communicating valve 14 are provided with High voltage output oil pipe 13, low pressure valve group
At first shut-off valve 15 that is internally provided with of integrated unit 11, and the lower section of the first shut-off valve 15 is provided with throttle valve 16, throttling
The lower section of valve 16 is equipped with first pressure gauge 17, and the left side of first pressure gauge 17 is provided with the first check valve 18, first pressure
The lower section of table 17 is provided with low pressure relief valve 19, and the inside of high pressure valve composition integrated unit 8 is equipped with the second shut-off valve 20, and the
The lower section of two shut-off valves 20 is provided with speed governing valve 21, and the lower section of speed governing valve 21 is provided with second one-way valve 22, and second one-way valve
22 lower section is fixed with high-pressure overflow valve 23, and the lower section of high-pressure overflow valve 23 is equipped with second pressure gauge 24, High voltage output oil pipe
13 lower section is provided with high-pressure shunting block 25, and the right side of high-pressure shunting block 25 is connected with hoisting device branching block 26, and high pressure is defeated
Flowline 13 between high-pressure shunting block 25 and hoisting device branching block 26 by being connected, and hoisting device branching block 26 includes
One oil inlet, an oil outlet, six complex system oil circuit interfaces, pass through six and play complex system oil circuit interface and hoisting devices
The connection of branching block 26 can be provided the oil liquid needed again, high-pressure pump and low-lift pump for the device and passed through using duplex form
The axis of high-pressure pump is mounted on internal-axis type system block valve and is connect by High voltage output oil pipe with vehicle emergency re-railing equipment, for mentioning
It has met an urgent need for the whole noon multiple power.
Working principle: when using the combined railway large-scale maintenance machinery EMR emergency reset system, first by 4 He of high-pressure pump
Low-lift pump 5 is mounted on internal-axis type Special-purpose motor for oil pump 1 using duplex form by the axis of high-pressure pump 4, then by interior uranium formula oil
It is mounted on hood 10 on pump motor special 1,11 input port of low pressure valve group integrated unit is passed through into the first fluid pressure line 7 and low pressure
The connection of hydraulic fluid port 9 is pumped out, delivery outlet is connected to big machine hydraulic system by low pressure output oil pipe 12, and high pressure valve group integrated unit 8 is defeated
Entrance is connect by the second fluid pressure line 10 with high-pressure pump oil outlet 6, is connected between low pressure output oil pipe 12 and High voltage output oil pipe 1
It is connected to high and low pressure system communicating valve 14, the oil liquid of high-pressure system is supplemented to by low-pressure system by high and low pressure system communicating valve 14,
For to the biggish work of flow is needed, low pressure valve group integrated unit 8 to specifically include that the first shut-off valve 15, throttle valve 16, first
Pressure gauge 17, the first check valve 18 and low pressure relief valve 19, the first shut-off valve 15 and low pressure relief valve 19 are used for low-pressure system pressure
The foundation of power, and throttle valve 16 is used for the flow of regulating system, high pressure valve group integrated unit 11 includes: the second shut-off valve 20, adjusts
Fast valve 21, second one-way valve 22, high-pressure overflow valve 23 and second pressure gauge 24, the second shut-off valve 20 and high-pressure overflow valve 23 are used for
The foundation of high-pressure system pressure, speed governing valve 21 are used for the flow of regulating system and guarantee the stabilization of output pressure, and here it is the groups
The working principle of box-like railway large-scale maintenance machinery EMR emergency reset system.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of combined railway large-scale maintenance machinery EMR emergency reset system, including lampshade (1) and low-lift pump (5), feature exists
In: the inside of the lampshade (1) is equipped with internal-axis type Special-purpose motor for oil pump (2), and the lower section of internal-axis type Special-purpose motor for oil pump (2)
It is connected with connecting shaft (3), is equipped with high-pressure pump (4) below the connecting shaft (3), and the surface of high-pressure pump (4) is provided with height
Press pump oil outlet (6) is equipped with the first fluid pressure line (7) below the high-pressure pump oil outlet (6), and the first fluid pressure line
(7) high pressure valve composition integrated unit (8) is connected with below, the surface of the low-lift pump (5) offers low-lift pump oil outlet
(9), and low-lift pump (5) is located at the right side of high-pressure pump (4), is equipped with the second hydraulic tube below the low-lift pump oil outlet (9)
Road (10), and low pressure valve composition integrated unit (11) is connected with below the second fluid pressure line (10), the low pressure valve composition collection
At being equipped with low pressure output oil pipe (12) below unit (11), and high-low pressure system is connected on the left of low pressure output oil pipe (12)
It unites communicating valve (14), is provided with High voltage output oil pipe (13), the low pressure valve on the left of the high and low pressure system communicating valve (14)
Composition integrated unit (11) is internally provided with the first shut-off valve (15), and is provided with throttle valve below the first shut-off valve (15)
(16), it is equipped with first pressure gauge (17) below the throttle valve (16), and is provided on the left of first pressure gauge (17)
One check valve (18) is provided with low pressure relief valve (19) below the first pressure gauge (17), and the high pressure valve composition is integrated
The inside of unit (8) is equipped with the second shut-off valve (20), and speed governing valve (21) are provided with below the second shut-off valve (20), described
It is provided with below speed governing valve (21) second one-way valve (22), and is fixed with high-pressure overflow valve below second one-way valve (22)
(23), it is equipped with second pressure gauge (24) below the high-pressure overflow valve (23), the lower section of the High voltage output oil pipe (13)
It is provided with high-pressure shunting block (25), and is connected with hoisting device branching block (26) on the right side of high-pressure shunting block (25).
2. a kind of combined railway large-scale maintenance machinery EMR emergency reset system according to claim 1, it is characterised in that: institute
Internal-axis type Special-purpose motor for oil pump (2) are stated by being connected between connecting shaft (3) and high-pressure pump (4), and internal-axis type oil pump Special electric
It is set as welding between machine (2) and lampshade (1).
3. a kind of combined railway large-scale maintenance machinery EMR emergency reset system according to claim 1, it is characterised in that: institute
State equal between the outer dia of the first fluid pressure line (7) and the outer dia of high-pressure pump oil outlet (6), and the first fluid pressure line
(7) it is bonded between lower surface and the upper surface of high pressure valve composition integrated unit (8).
4. a kind of combined railway large-scale maintenance machinery EMR emergency reset system according to claim 1, it is characterised in that: institute
Low-lift pump (5) are stated to pass through between low-lift pump oil outlet (9) and the second fluid pressure line (10) and low pressure valve composition integrated unit (11)
It is connected, and constitutes double structure between low-lift pump (5) and high-pressure pump (4).
5. a kind of combined railway large-scale maintenance machinery EMR emergency reset system according to claim 1, it is characterised in that: institute
State the vertical centerline between low pressure output oil pipe (12) and High voltage output oil pipe (13) about high and low pressure system communicating valve (14)
Symmetrically, and the upper surface of the lower surface of low pressure output oil pipe (12) and hoisting device branching block (26) is located in same horizontal line.
6. a kind of combined railway large-scale maintenance machinery EMR emergency reset system according to claim 1, it is characterised in that: institute
High voltage output oil pipe (13) are stated by being connected between high-pressure shunting block (25) and hoisting device branching block (26), and hoisting device
Branching block (26) includes an oil inlet, an oil outlet, six complex system oil circuit interfaces.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820786480 | 2018-05-25 | ||
| CN2018105117838 | 2018-05-25 | ||
| CN201810511783.8A CN108679011A (en) | 2018-05-25 | 2018-05-25 | A kind of combined railway large-scale maintenance machinery EMR emergency reset system |
| CN2018207864802 | 2018-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109838422A true CN109838422A (en) | 2019-06-04 |
| CN109838422B CN109838422B (en) | 2024-03-22 |
Family
ID=66885769
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910193937.8A Active CN109838422B (en) | 2018-05-25 | 2019-03-14 | Combined railway large-scale road maintenance machinery emergency reset system |
| CN201920324387.4U Active CN210371402U (en) | 2018-05-25 | 2019-03-14 | Combined type railway large-scale maintenance machinery emergency reset system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920324387.4U Active CN210371402U (en) | 2018-05-25 | 2019-03-14 | Combined type railway large-scale maintenance machinery emergency reset system |
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| CN (2) | CN109838422B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1094900A (en) * | 1996-09-24 | 1998-04-14 | Amada Co Ltd | Hydraulic circuit of hydraulic cylinder |
| JP2011007100A (en) * | 2009-06-25 | 2011-01-13 | Sano Kogyo Kk | Hydraulic pump device |
| CN201836004U (en) * | 2010-04-30 | 2011-05-18 | 长沙中联重工科技发展股份有限公司 | Hydraulic system |
| CN103161776A (en) * | 2011-12-16 | 2013-06-19 | 北汽福田汽车股份有限公司 | Hydraulic system used for engineering machinery |
| CN105793579A (en) * | 2013-09-23 | 2016-07-20 | 厄齐尔·米格尔·涅马 | Hydraulic pressure generation unit with pneumatic actuation |
| CN206054421U (en) * | 2016-08-31 | 2017-03-29 | 艾迪斯鼎力科技(天津)有限公司 | A kind of portable power driven hydraulic pump valve board structure |
-
2019
- 2019-03-14 CN CN201910193937.8A patent/CN109838422B/en active Active
- 2019-03-14 CN CN201920324387.4U patent/CN210371402U/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1094900A (en) * | 1996-09-24 | 1998-04-14 | Amada Co Ltd | Hydraulic circuit of hydraulic cylinder |
| JP2011007100A (en) * | 2009-06-25 | 2011-01-13 | Sano Kogyo Kk | Hydraulic pump device |
| CN201836004U (en) * | 2010-04-30 | 2011-05-18 | 长沙中联重工科技发展股份有限公司 | Hydraulic system |
| CN103161776A (en) * | 2011-12-16 | 2013-06-19 | 北汽福田汽车股份有限公司 | Hydraulic system used for engineering machinery |
| CN105793579A (en) * | 2013-09-23 | 2016-07-20 | 厄齐尔·米格尔·涅马 | Hydraulic pressure generation unit with pneumatic actuation |
| CN206054421U (en) * | 2016-08-31 | 2017-03-29 | 艾迪斯鼎力科技(天津)有限公司 | A kind of portable power driven hydraulic pump valve board structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109838422B (en) | 2024-03-22 |
| CN210371402U (en) | 2020-04-21 |
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