CN209066529U - The hydraulic system of remote control loading machine - Google Patents
The hydraulic system of remote control loading machine Download PDFInfo
- Publication number
- CN209066529U CN209066529U CN201821210481.9U CN201821210481U CN209066529U CN 209066529 U CN209066529 U CN 209066529U CN 201821210481 U CN201821210481 U CN 201821210481U CN 209066529 U CN209066529 U CN 209066529U
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- valve
- mouthfuls
- proportion magnetic
- remote control
- swing arm
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- 230000007423 decrease Effects 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 82
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Abstract
The utility model discloses a kind of hydraulic systems of remote control loading machine, belong to engineering machinery field.Which overcome the defects that the hydraulic system of remote control loading machine in the prior art causes the power of complete machine consumption excessively high using quantitative system.Including steering hydraulic system and hydraulic system of working, steering hydraulic system includes steering pump, pressure-gradient control valve, remote control reversal valve, diverter, steering cylinder, left-hand rotation proportion magnetic valve and right-hand rotation proportion magnetic valve, steering pump is variable pump, and hydraulic system of working includes working barrel, unloading valve, multi-way valve, rotating bucket cylinder, swing arm cylinder, guide oil source valve, pilot handle, rotating bucket receipts bucket proportion magnetic valve, rotating bucket discharging proportion magnetic valve, swing arm lifting proportion magnetic valve and swing arm decline sliding scales solenoid valve.The utility model is used for remote control loading machine, realizes the Variable Control of work system, system is more energy efficient.
Description
Technical field
The utility model belongs to a kind of hydraulic system, specifically, more particularly to a kind of remote control loading machine it is hydraulic
System.
Background technique
From the point of view of the development of engineering machinery in recent years, remote control loader development is swift and violent, in particular for the clear of copper smelter slag
Reason, the exploitation of downhole coal mine, remote control loader can make operator get rid of the constraint of traditional driver's cabin, alleviate effect ring
Noise in border, dust, vibration are collapsed and are splashed, the unclear unfavorable factor of sight, the influence to operator, can choose most advantageous
Position operated, be more importantly avoided that emergency event causes the injures and deaths of personnel.
Loading machine remote control system is mostly quantitative system currently on the market, but is risen abruptly in operating condition the shortcomings that quantitative system in shovel,
When needing the small flow of high pressure, quantitative system can only provide high-pressure high-flow at this time, and the power for causing complete machine to consume is excessively high.
The more powerful engine of system configuration is thus needed, bigger radiator is configured, to meet the needs of system, in order to solve
This problem, we develop the remote control loader hydraulic system of variable system.
Utility model content
The utility model aim is to provide a kind of hydraulic system of remote control loading machine, to overcome prior art medium-long range
The hydraulic system of the remote control loader defect excessively high using the power that quantitative system causes complete machine to consume.
The utility model adopts the following technical solutions realization:
The hydraulic system of remote control loading machine described in the utility model, including steering hydraulic system and working hydraulic pressure system
System,
The steering hydraulic system includes steering pump, pressure-gradient control valve, remote control reversal valve, diverter, steering cylinder, left-hand rotation ratio
Solenoid valve and right-hand rotation proportion magnetic valve, the steering pump are variable pump, and oil inlet connects hydraulic oil container, and oil outlet connection is preferential
P mouthfuls of valve, the pressure-gradient control valve CF mouthfuls of connection remote control reversal valves and diverter, the remote control are separately connected with reversal valve and diverter
Steering cylinder, the left-hand rotation proportion magnetic valve and right-hand rotation proportion magnetic valve be separately connected a mouthful of remote control reversal valve of control with b mouthfuls into
Oil；
The hydraulic system of working includes working barrel, unloading valve, multi-way valve, rotating bucket cylinder, swing arm cylinder, guide oil source valve, elder generation
Lead handle, rotating bucket receives bucket proportion magnetic valve, rotating bucket discharging proportion magnetic valve, swing arm lifting proportion magnetic valve and swing arm decline float
Proportion magnetic valve, the working barrel oil outlet connection unloading valve and guide oil source valve, the unloading valve connect multi-way valve P mouthfuls, institute
Multi-way valve connection rotating bucket cylinder and swing arm cylinder are stated, the guide oil source valve connection rotating bucket receives bucket proportion magnetic valve, rotating bucket discharging ratio
Solenoid valve, swing arm lifting proportion magnetic valve and swing arm decline sliding scales solenoid valve, and rotating bucket receives bucket proportion magnetic valve, rotating bucket discharging
Proportion magnetic valve, swing arm lifting proportion magnetic valve and swing arm decline sliding scales solenoid valve be separately connected multi-way valve XA1 mouth,
XB1 mouthfuls, XA2 mouthfuls, XB2 mouthfuls；
Preferably, the hydraulic system of remote control loading machine described in the utility model further includes shuttle valve I, shuttle valve II, shuttle
Valve III, shuttle valve group and logical valve, L mouthfuls of acquisition signals of the shuttle valve I connection steering cylinder, the shuttle valve I output signals to shuttle valve II
Left side, the shuttle valve II outputs signals to the left side of shuttle valve III, and shuttle valve III outputs signals to X mouthfuls of steering pump, the multichannel
The XA1 mouth of valve, XB1 mouthfuls, XA2 mouthfuls, XB2 mouthfuls connect with shuttle valve group, the shuttle valve group connects logical valve, the logical valve and turns to
It is connected on the right side of P mouthfuls of pump and shuttle valve III, P mouthfuls of multi-way valve of the connection of EF mouthfuls of pressure-gradient control valve.
Preferably, the oil circuit connection between the guide oil source valve and pilot handle has filter.
Preferably, oil return line is equipped with oil return filter core.
Preferably, oil return line is equipped with oil return radiator.
Compared with prior art, the utility model has the beneficial effects that
(1) the utility model remote control loader hydraulic system uses variable system, passes through unloading valve and shuttle valve group and logic
Valve etc. realizes, and small displacement constant displacement pump and steering variable pump simultaneously as work system fuel feeding, realizes the variable control of work system
System, system are more energy efficient；
(2) the utility model realizes two using electromagnetic proportional valve and the control of unmanned steering valve and special logical valve
The independent operation for covering steering system improves the convenience of manual operation and remote control operation conversion；
(3) after the utility model is using remote control, the bad working environments bring danger such as underground or stokehold is reduced, is reduced
Labor intensity reduces cost of labor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1, steering pump；2, pressure-gradient control valve；3, shuttle valve III；4, shuttle valve II；5, shuttle valve I；6, reversal valve is used in remote control；7, turn
To device；8, steering cylinder；9, right-hand rotation proportion magnetic valve；10, left-hand rotation proportion magnetic valve；11, shuttle valve group；12, multi-way valve；13, rotating bucket
Cylinder；14, swing arm cylinder；15, rotating bucket receives bucket proportion magnetic valve；16, rotating bucket discharging proportion magnetic valve；17, swing arm lifts ratio electromagnetism
Valve；18, swing arm declines sliding scales solenoid valve；19, guide oil source valve；20, filter；21, pilot handle；22, oil return is radiated
Device；23, oil return filter core；24, unloading valve；25, working barrel；26, logical valve.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, the hydraulic system of remote control loading machine described in the utility model, including steering hydraulic system and
Hydraulic system of working.
Steering hydraulic system includes steering pump 1, pressure-gradient control valve 2, remote control reversal valve 6, diverter 7, steering cylinder 8, right-hand rotation ratio
Example solenoid valve 9 and left-hand rotation proportion magnetic valve 10, steering pump 1 are variable pump, and oil inlet connects hydraulic oil container, and oil outlet connection is excellent
First valve 2P mouthfuls, pressure-gradient control valve 2CF mouthfuls of connections remote control reversal valves 6 and diverter 7, remote control reversal valve 6 and diverter 7 are separately connected
Steering cylinder 8, left-hand rotation proportion magnetic valve and 10 right-hand rotation proportion magnetic valves 9 be separately connected 6a mouthful of remote control reversal valve of control with b mouthfuls into
Oil.
Hydraulic system of working includes working barrel 25, unloading valve 24, multi-way valve 12, rotating bucket cylinder 13, swing arm cylinder 14, pilot oil source
Valve 19, pilot handle 21, rotating bucket receive bucket proportion magnetic valve 15, rotating bucket discharging proportion magnetic valve 16, swing arm and lift proportion magnetic valve
17 and swing arm decline sliding scales solenoid valve 18,25 oil outlet of working barrel connects unloading valve 24 and guide oil source valve 19, unloading valve
24 multi-way valve 12P mouthfuls of connections, multi-way valve 12 connect rotating bucket cylinder 13 and swing arm cylinder 14, and guide oil source valve 19 connects rotating bucket and receives bucket ratio
Solenoid valve 15, rotating bucket discharging proportion magnetic valve 16, swing arm lifting proportion magnetic valve 17 and swing arm decline sliding scales solenoid valve 18,
Rotating bucket receives bucket proportion magnetic valve 15, rotating bucket discharging proportion magnetic valve 16, swing arm lifting proportion magnetic valve 17 and swing arm decline and floats
Proportion magnetic valve 18 is separately connected the XA1 mouth of multi-way valve 12, XB1 mouthfuls, XA2 mouthfuls, XB2 mouthfuls.
The utility model further includes shuttle valve I5, shuttle valve II4, shuttle valve III3, shuttle valve group 11 and logical valve 26, shuttle valve I5 connection
8L mouthfuls of acquisition signals of steering cylinder, shuttle valve I5 output signals to the left side of shuttle valve II4, and shuttle valve II4 outputs signals to shuttle valve III3's
Left side, shuttle valve III3 output signals to 1X mouthfuls of steering pump, the XA1 mouth of multi-way valve 12, XB1 mouthfuls, XA2 mouthfuls, XB2 mouthfuls and shuttle valve group 11
Connection, shuttle valve group 11 connect logical valve 26, connect on the right side of logical valve 26 and 1P mouthfuls of steering pump and shuttle valve III3,2EF mouthfuls of pressure-gradient control valve
Multi-way valve 12P mouthfuls of connection.
Preferably, the oil circuit connection between guide oil source valve 19 and pilot handle 21 has filter 20；It is set on oil return line
There is oil return filter core 23；Oil return line is equipped with oil return radiator 22.
Working principle of the utility model is:
1. the variable and remote control process of steering system are as follows:
When remote control carries out left steering, system controls the pivot angle of steering pump 1 by 1X mouthfuls of steering pump of pressure to control
The flow of variable pump processed output, when left-hand rotation proportion magnetic valve 10 is powered, when start-up operation, remote control with the b of reversal valve 6 mouth come
Oil, remote control are moved to left with 6 spool of reversal valve, and the CF mouth pressure reduction of pressure-gradient control valve 2, pressure-gradient control valve 2 is fuel-displaced from P mouthfuls to EF mouthfuls to become P mouthfuls
Fuel-displaced to CF mouthfuls, CF mouthfuls of output oil liquid, 1 discharge capacity very little of steering pump, the oil liquid of steering pump 1 are arrived by remote control reversal valve 6 at this time
The L mouth of steering cylinder 8 takes a letter in order to make the discharge capacity of steering pump 1 set up relationship with load on the L of steering cylinder 8 mouth
The lower section for number arriving shuttle valve I5, is output to the left side of shuttle valve II4 by comparing, then by comparing arriving the left side of shuttle valve III3, then arrives
The X mouth of steering pump 1, to increase the discharge capacity of steering pump 1, meets the needs of left steering flow to control the pivot angle of steering pump 1,
The oil liquid of the R mouth of steering cylinder 8 passes through oil return filter core 23 by T mouth of remote control reversal valve 6 to oil return radiator 22 to returning to again
Oil liquid fuel tank.
When remote control carries out right turn, system controls the pivot angle of steering pump 1 by 1X mouthfuls of steering pump of pressure to control
The flow that steering pump 1 processed exports, when right-hand rotation proportion magnetic valve 9, which is powered, starts to work, reversal valve 6a mouthfuls of coming oil of remote control is distant
Control is moved to right with the spool of reversal valve 6,2CF mouthfuls of pressure reductions of pressure-gradient control valve, and 2EF mouthfuls of pressure-gradient control valve are moved to CF mouthfuls of fuel-displaced, CF mouthfuls of outputs
The R mouth of oil liquid, oil liquid to the diverter 7 of steering pump 1 exports, and 1 flow very little of steering pump, takes one on steering cylinder 8R at this time
Signal is output to the left side of shuttle valve II4 to the top of shuttle valve I5 by comparing, then by comparing the right side for arriving shuttle valve III3, then
It is output to 1X mouthfuls of steering pump above, to control the pivot angle of steering pump 1, to increase the discharge capacity of steering pump 1, meets the need of right turn
It asks.
When manually carrying out left steering using diverter 7, diverter 7 is moved downward, 2CF mouthfuls of pressure reductions of pressure-gradient control valve,
2 spool of pressure-gradient control valve is moved to CF mouthfuls of fuel-displaced, CF mouthfuls of output oil liquid by EF mouthfuls, and CF oil liquid arrives steering cylinder 8L mouthfuls by diverter 7, LS
Mouth pressure effect of increasing is applied to the left side of shuttle valve III3 by comparing to the right side of shuttle valve II4, then arrives steering pump 1X mouthfuls, from
And the pivot angle of steering pump 1 is controlled, and realize the increase of flow, it is artificial to turn to and unmanned steering be with to meet the requirement of steering
It is individually operated, it is mutually independent of each other, when right turn, working principle is similar.
2. rotating bucket receives the variable to struggle against in discharge process and remote control process is as follows:
When remote control rotating bucket connection does not carry out operation, 25 coming oil of working barrel arrives multi-way valve 12, working barrel by unloading valve 24
25 oil passes through position oil return in multi-way valve 12 to hydraulic oil container.
When remote control, which carries out rotating bucket, receives bucket, i.e., when rotating bucket receipts bucket proportion magnetic valve 15 is initially powered up, guide oil source valve
The oil liquid of 19 outputs joins XA1 mouthfuls by the rotating bucket that rotating bucket receives bucket proportion magnetic valve 15 to multi-way valve 12, wherein with pilot pressure
Rising, when pilot pressure be higher than 6bar when, guide's oil liquid is transmitted to logical valve 26 by 11 control pressing pressure of shuttle valve group
At Pi, when pressure is higher than 6bar at Pi, passes through the right side of shuttle valve III3 from 1P mouthfuls of steering pump of coming oils, turn by comparing arriving
To 1X mouthfuls of pump, control steering pump 1 realizes the increase of discharge capacity, and the oil liquid and 1EF mouthfuls of steering pump of oil liquid in working barrel 25 are together
To rotating bucket cylinder 13, when pressure reaches the 207bar of unloading valve 24, small flow high pressure power is needed at this time, working barrel 25 is unloaded
Lotus, by the independent rotating bucket to realize complete machine of steering pump 1.
When remote control carries out rotating bucket discharging, i.e., when the electromagnet of rotating bucket discharging is powered in the middle, guide oil source valve 19 is defeated
To XB1, multi-way valve 12 moves down oil liquid out, and 25 coming oil of working barrel is to rotating bucket cylinder 13, wherein with the rising of pilot pressure,
When pilot pressure is higher than 6bar, guide's oil liquid is transmitted at the Pi of logical valve 26 by 11 control pressing pressure of shuttle valve group, from
The coming oil that 1P mouthfuls of steering pump is to the right side of shuttle valve III3, and by comparing arriving X mouthfuls, control steering pump 1 realizes the increase of discharge capacity, turns
Oil liquid is supplied to rotating bucket cylinder 13 to pump 1 and the interflow of working barrel 25, when pressure reaches the 207bar of unloading valve 24, is needed at this time
Small flow high pressure power is wanted, working barrel 25 carries out off-load, realizes the work of discharging.
When manual operation rotating bucket connection, guide's oil liquid is exported with pilot handle 21, pushes the XA1 and XB1 of multi-way valve 12
Movement realize receipts bucket and the discharging of rotating bucket cylinder 13, manual operation rotating bucket connection is distinguished with remote control is: a ratio electromagnetism
Valve work, one is that pilot handle 21 controls work.
3. lifting, decline, the variable in location free procedure and remote control process are as follows:
When remote control swing arm connection does not carry out operation, 25 coming oil of working barrel arrives multi-way valve 12, working barrel by unloading valve 24
25 oil passes through position oil return in multi-way valve 12 to hydraulic oil container.
When remote control swing arm connection carries out operation, when swing arm lifts the energization of solenoid-operated proportional solenoid valve 17, from pilot oil source
The oil liquid of valve 19 is to the XA2 mouth of multi-way valve 12, and the swing arm connection of multi-way valve 12 starts to move upwards, wherein upper with pilot pressure
It rising, when pilot pressure is higher than 6bar, guide's oil liquid is transmitted at the Pi of logical valve 26 by 11 control pressing pressure of shuttle valve group,
The right side for passing through shuttle valve III3 from 1P mouthfuls of steering pump of causes, by comparing arriving X mouthfuls, control steering pump 1 realizes the increasing of discharge capacity
Add, play swing arm cylinder 14 from steering pump 1 and 25 coming oil of working barrel interflow one, completes the lifting movement of swing arm, unloaded when pressure reaches
When the 207bar of lotus valve 24, small flow high pressure power is needed at this time, and working barrel 25 carries out off-load, by steering pump 1 individually come to dynamic
Arm cylinder 14 provides required oil liquid, completes the lifting of swing arm.
When remote control swing arm is declined, swing arm decline sliding scales solenoid valve 18 is initially powered up work, and XB2 mouthfuls start
The swing arm connection of logical oil, multi-way valve 12 continues to move downward, wherein be down position when pressure is no more than 25bar, wherein with
The rising of pilot pressure, when pilot pressure be higher than 6bar when, guide's oil liquid is transmitted to by 11 control pressing pressure of shuttle valve group
At the PI of logical valve 26, pass through the right side of shuttle valve III3 from 1P mouthfuls of steering pump of causes, by comparing arriving X mouthfuls, controls steering pump 1
The increase of discharge capacity is realized, working barrel 25 and the interflow of steering pump 1 give 14 fuel feeding of swing arm cylinder together, realize the decline of system.
When remote control swing arm is floated, swing arm decline sliding scales solenoid valve 18 is initially powered up, when decline guide's pressure
When power is more than 25bar, XF mouthfuls of pressure rises, and the swing arm connection of multi-way valve 12 continues to move downward, and arrives floating position, at this time shuttle
To the Pi mouth of logical valve 26, logical valve 26 moves downward the oil liquid of valve group 11, and P mouthfuls of oil liquid passes through to the right side of shuttle valve III3
Compare X mouthfuls to be output on steering pump 1, control steering pump 1 realizes the increase of discharge capacity, and working barrel 25 and steering turn 1 and give together
Oil cylinder fuel feeding realizes the float function of swing arm.
When manual operation swing arm connection, the up and down motion of multi-way valve 12 is controlled with pilot handle 21 to control swing arm cylinder
14, realize the lifting of swing arm, the decline of swing arm and floating.The Variable Control principle and remote control class of manual operation swing arm connection
Seemingly, difference is: one is worked using proportion magnetic valve, and one is worked using pilot handle 21, is mutually independent of each other.
Claims (4)
1. a kind of hydraulic system of remote control loading machine, including steering hydraulic system and hydraulic system of working, it is characterised in that:
The steering hydraulic system includes steering pump (1), pressure-gradient control valve (2), remote control reversal valve (6), diverter (7), steering cylinder
(8), right-hand rotation proportion magnetic valve (9) and left-hand rotation proportion magnetic valve (10), the steering pump (1) are variable pump, oil inlet connection
Hydraulic oil container, oil outlet connect P mouthfuls of pressure-gradient control valve (2), the pressure-gradient control valve (2) CF mouthfuls of connection remote controls reversal valve (6) and diverters
(7), it is described remote control be separately connected steering cylinder (8) with reversal valve (6) and diverter (7), the left-hand rotation proportion magnetic valve (10) and
Right-hand rotation proportion magnetic valve (9) is separately connected a mouthfuls of control remote control reversal valve (6) and b mouthfuls of oil inlets；
The hydraulic system of working includes working barrel (25), unloading valve (24), multi-way valve (12), rotating bucket cylinder (13), swing arm cylinder
(14), guide oil source valve (19), pilot handle (21), rotating bucket receive bucket proportion magnetic valve (15), rotating bucket discharging proportion magnetic valve
(16), swing arm lifting proportion magnetic valve (17) and swing arm decline sliding scales solenoid valve (18), working barrel (25) oil outlet
Unloading valve (24) and guide oil source valve (19) are connected, the unloading valve (24) connects P mouthfuls of multi-way valve (12), the multi-way valve (12)
Rotating bucket cylinder (13) and swing arm cylinder (14) are connected, guide oil source valve (19) the connection rotating bucket receives bucket proportion magnetic valve (15), rotating bucket
Discharging proportion magnetic valve (16), swing arm lifting proportion magnetic valve (17) and swing arm decline sliding scales solenoid valve (18), rotating bucket are received
It struggles against proportion magnetic valve (15), rotating bucket discharging proportion magnetic valve (16), swing arm lifting proportion magnetic valve (17) and swing arm decline are floated
Proportion magnetic valve (18) is separately connected the XA1 mouth of multi-way valve (12), XB1 mouthfuls, XA2 mouthfuls, XB2 mouthfuls；
It further include shuttle valve I (5), shuttle valve II (4), shuttle valve III (3), shuttle valve group (11) and logical valve (26), the shuttle valve I (5) is even
L mouthfuls of acquisition signals of steering cylinder (8) are connect, the shuttle valve I (5) outputs signals to the left side of (4) shuttle valve II, and the shuttle valve II (4) is defeated
For signal to the left side of (3) shuttle valve III, shuttle valve III (3) outputs signals to X mouthfuls of steering pump (1), the XA1 of the multi-way valve (12) out
Mouthful, XB1 mouthful, XA2 mouthfuls, XB2 mouthfuls connect with shuttle valve group (11), the shuttle valve group (11) connection logical valve (26), the logical valve
(26) it is connect on the right side of P mouthfuls of steering pump (1) and shuttle valve III (3), EF mouthfuls of P mouthfuls of connection multi-way valves (12) of pressure-gradient control valve (2).
2. the hydraulic system of remote control loading machine according to claim 1, it is characterised in that: the guide oil source valve
(19) oil circuit connection between pilot handle (21) has filter (20).
3. the hydraulic system of remote control loading machine according to claim 2, it is characterised in that: oil return line is equipped with back
Oily filter core (23).
4. the hydraulic system of remote control loading machine according to claim 1 or 2 or 3, it is characterised in that: on oil return line
Equipped with oil return radiator (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821210481.9U CN209066529U (en) | 2018-07-27 | 2018-07-27 | The hydraulic system of remote control loading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821210481.9U CN209066529U (en) | 2018-07-27 | 2018-07-27 | The hydraulic system of remote control loading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209066529U true CN209066529U (en) | 2019-07-05 |
Family
ID=67089852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821210481.9U Withdrawn - After Issue CN209066529U (en) | 2018-07-27 | 2018-07-27 | The hydraulic system of remote control loading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209066529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083223A (en) * | 2018-07-27 | 2018-12-25 | 山东临工工程机械有限公司 | The hydraulic system of remote control loading machine |
-
2018
- 2018-07-27 CN CN201821210481.9U patent/CN209066529U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083223A (en) * | 2018-07-27 | 2018-12-25 | 山东临工工程机械有限公司 | The hydraulic system of remote control loading machine |
| CN109083223B (en) * | 2018-07-27 | 2023-11-21 | 山东临工工程机械有限公司 | Hydraulic system of remote control loader |
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Granted publication date: 20190705 Effective date of abandoning: 20231121 |
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| AV01 | Patent right actively abandoned |
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