AU2020104191A4 - Hydraulic oil changing device suitable for crawler type engineering machinery debugging field - Google Patents
Hydraulic oil changing device suitable for crawler type engineering machinery debugging field Download PDFInfo
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- AU2020104191A4 AU2020104191A4 AU2020104191A AU2020104191A AU2020104191A4 AU 2020104191 A4 AU2020104191 A4 AU 2020104191A4 AU 2020104191 A AU2020104191 A AU 2020104191A AU 2020104191 A AU2020104191 A AU 2020104191A AU 2020104191 A4 AU2020104191 A4 AU 2020104191A4
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- oil
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- filtering
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Abstract
The present invention discloses a hydraulic oil changing device suitable for a crawler type
engineering machinery debugging field, including a moving trolley, wherein an electromotor, an
oil pump, a filtering oil box, a cleaning oil box and a control unit are mounted on the moving
trolley; the electromotor is connected to the oil pump; the control unit includes a control panel, a
first reversing valve, a second reversing valve and a fine filter; and the control panel is electrically
connected to the first reversing valve, the second reversing valve and the electromotor
respectively. According to the present invention, the control unit controls the electromotor and the
reversing valves to work, the oil pump sucks hydraulic oil in a crawler type engineering
machinery oil box into the filtering oil box by the first reversing valve for filtering, the filtered
hydraulic oil passes through the second reversing valve and the fine filter to enter the cleaning oil
box, the control unit controls the hydraulic oil in the cleaning oil box to enter the crawler type
engineering machinery oil box, so that the work of filtering and changing the hydraulic oil is
completed. The present invention can improve the cleanliness of the hydraulic oil, has high
filtering capacity for hydraulic oil pollution, high filtering precision and high working efficiency,
and is convenient to operate.
FA B
7 7T
12
FIG. 1
-7-3
7
7-2
7-1
FIG. 2
1/2
Description
7 7T
FIG. 1
-7-3 7
7-2 7-1
FIG. 2
1/2
The present invention relates to an oil changing device, particularly relates to a hydraulic oil
changing device suitable for a crawler type engineering machinery debugging field, and belongs
to the technical field of hydraulic transmission in the machinery industry.
After the crawler type engineering machinery works for a period of time, since the hydraulic
component is worn, external impurities will be immersed to pollute the hydraulic oil, and solid
particles will aggravate the wear of the hydraulic component to enable the hydraulic component to
be chucked or fail; therefore, it is necessary to filter the hydraulic oil. However, the crawler type
engineering machinery is inconvenient to move in the debugging field and the moving energy
consumption is high; therefore, movable hydraulic oil adding and filtering equipment is required.
The hydraulic oil of the crawler type engineering machinery is filtered and changed mainly
by a filter trolley at present, but the existing filter trolley does not have a function of storing the
hydraulic oil, adopts hybrid filtering, and has limited filtering capacity, low filtering precision,
high filter consumption, low filtering and change efficiency, high labor intensity and high cost,
thereby seriously affecting the service life of the crawler type engineering machinery equipment.
For the above problems in the prior art, the present invention provides a hydraulic oil changing device suitable for a crawler type engineering machinery debugging field, which can realize high-precision and high-efficiency filtering and change of hydraulic oil, low filter consumption, low labor intensity and low use cost.
The hydraulic oil changing device suitable for a crawler type engineering machinery
debugging field includes a moving trolley, wherein an electromotor, an oil pump, a filtering oil
box, a cleaning oil box and a control unit are mounted on the moving trolley; the electromotor is
electrically connected to the oil pump; the control unit includes a control panel, a first reversing
valve, a second reversing valve and a fine filter; the control panel is electrically connected to the first reversing valve, the second reversing valve and the electromotor respectively; a P port of the first reversing valve communicates with an upper space of the filtering oil box through a one-way valve B, the P port of the first reversing valve also communicates with the cleaning oil box through a one-way valve A, a T port of the first reversing valve is connected to an oil suction and return pipeline, and an A port and a B port of the first reversing valve communicate with an oil discharge port and an oil suction port of the oil pump respectively; and a P port of the second reversing valve communicates with a bottom space of the filtering oil box through a pipeline, a T port of the second reversing valve communicates with the cleaning oil box through the fine filter, and an A port and a B port of the second reversing valve communicate with the oil suction port and the oil discharge port of the oil pump respectively.
Preferably, two filtering oil boxes are mounted, the P port of the first reversing valve
communicates with upper spaces of the two filtering oil boxes respectively through one-way
valves B, and the P port of the second reversing valve communicates with bottom spaces of the
two filtering oil boxes respectively through pipelines.
Further, a partition plate type filtering core is mounted in each of the filtering oil boxes, and
the partition plate type filtering core is located on a lower part of an oil inlet of each of the
filtering oil boxes.
Further, a funnel-shaped sediment collecting storehouse is arranged at the bottom of each of
the filtering oil boxes, and the bottom of the sediment collecting storehouse is connected to a
drain valve.
Preferably, the control panel includes:
a startup button, configured to control the electromotor to be powered on;
an oil suction button, configured to control a left electromagnet of the first reversing valve to
be powered on;
a filter button, configured to control the second reversing valve to be powered on and control
the first reversing valve to be powered off at the same time;
an oil supply button, configured to control a right electromagnet of the first reversing valve to be powered on and control the second reversing valve to be powered off; and a shutdown button, configured to control the electromotor to be powered off and control the first reversing valve to be powered off at the same time.
Compared with the prior art, the present invention has the following advantages:
1) The filtering oil box of the present invention adopts static filtration and partition plate type
filtering core filtration, thus effectively filtering water, impurities and metal impurities in the
hydraulic oil and improving filtering precision and filtering efficiency. When flowing into the
cleaning oil box from the filtering oil box, the hydraulic oil is filtered by the fine filter for the
second time, thus further improving filtering precision, ensuring the cleanliness of the hydraulic
oil and realizing high-precision and high-efficiency filtering and change of the hydraulic oil. The
present invention has low consumption on the filter, low labor intensity of workers and low use
cost.
2) According to the present invention, both the filtering oil box and the cleaning oil box are
mounted on the moving trolley; therefore, the present invention may perform filtration while
walking and may also control a rotating speed of the electromotor and reduce a flow speed of the
hydraulic oil in a pipeline, thus further improving filtering precision. The present invention may
perform filtration by utilizing spare time when transferring between different engineering
machines, thereby making full use of the spare time and improving the working efficiency.
FIG. 1 is a schematic diagram of a hydraulic system according to the present invention;
FIG. 2 is a schematic structural diagram of a filtering oil box according to the present
invention;
FIG. 3 is a schematic structural diagram of appearance of the present invention; and
FIG. 4 is a schematic structural diagram of a control panel according to the present
invention.
In the drawings: 1. electromotor, 2. oil pump, 3. second reversing valve, 4. first reversing
valve, 5. fine filter, 7. filtering oil box, 7-1. drain valve, 7-2. sediment collecting storehouse, 7-3.
partition plate type filtering core, 8. moving trolley, 9. cleaning oil box, 10. one-way valve A, 11.
crawler type engineering machinery equipment oil box, 12. one-way valve B, 14. oil suction and
return pipeline, 15. control panel, 15-1. startup button, 15-2. oil suction button, 15-3. filter button,
-4. oil supply button, 15-5. shutdown button.
The present invention will be further described below with reference to the accompanying
drawings.
As shown in the figure, a hydraulic oil changing device suitable for a crawler type
engineering machinery debugging field according to the present invention includes a moving
trolley 8, wherein an electromotor 1, an oil pump 2, a filtering oil box 7, a cleaning oil box 9 and
a control unit are mounted on the moving trolley 8; the electromotor 1 is electrically connected to
the oil pump 2;
the control unit includes a control panel 15, a first reversing valve 4, a second reversing valve
3 and a fine filter 5; and the control panel 15 is electrically connected to the first reversing valve
4, the second reversing valve 3 and the electromotor 1 respectively;
a P port of the first reversing valve 4 communicates with upper spaces of two filtering oil
boxes 7 respectively through one-way valves B12, the P port of the first reversing valve 4
communicates with the cleaning oil box 9 through a one-way valve A10, a T port of the first
reversing valve 4 is connected to an oil suction and return pipeline 14, and an A port and a B port
of the first reversing valve 4 communicate with an oil discharge port and an oil suction port of the
oil pump 2 respectively; and
a P port of the second reversing valve 3 communicates with bottom spaces of the two filtering
oil boxes 7 respectively through pipelines, a T port of the second reversing valve 3 communicates
with the cleaning oil box 9 through the fine filter 5, and an A port and a B port of the second
reversing valve 3 communicate with the oil suction port and the oil discharge port of the oil pump
2 respectively.
In the above technical solution, the present invention adopts two filtering oil boxes 7. Of
course, the present invention may adopt one or more filtering oil boxes 7. The filtered hydraulic oil in the filtering oil box 7 is filtered by the fine filter 5 for the second time and then enters the cleaning oil box 9, thereby further ensuring the filtering precision of the hydraulic oil and ensuring the cleanliness of the hydraulic oil.
As a preferred manner of the present invention on the above technical solution, a partition
plate type filtering core 7-3 is mounted in the filtering oil box 7. The partition plate type filtering
core 7-3 is located on a lower part of an oil inlet of the filtering oil box 7 and is configured to
filter floating objects in the hydraulic oil, thereby improving filtering precision and filtering
capacity and reducing loss of the filter.
To improve the filtering precision of the hydraulic oil, a funnel-shaped sediment collecting
storehouse 7-2 is arranged at the bottom of the filtering oil boxes 7, and the bottom of the
sediment collecting storehouse 7-2 is connected to a drain valve 7-1. Since the density of water is
greater than that of oil, water or heavy impurities will be sedimented in the sediment collecting
storehouse 7-2 to be collected. When the water in the sediment collecting storehouse 7-2 is
collected to a certain degree, a worker manually opens the drain valve 7-1, and the water and
impurities will be discharged out of the sediment collecting storehouse 7-2.
As a preferred manner of the present invention on the above technical solution, the control
panel 15 includes:
a startup button 15-1, configured to control the electromotor I to be powered on;
an oil suction button 15-2, configured to control a left electromagnet of the first reversing
valve 4 to be powered on;
a filter button 15-3, configured to control the second reversing valve 3 to be powered on and
control the first reversing valve 4 to be powered off at the same time;
an oil supply button 15-4, configured to control a right electromagnet of the first reversing
valve 4 to be powered on and control the second reversing valve 3 to be powered off; and
a shutdown button 15-5, configured to control the electromotor 1 to be powered off and
control the first reversing valve 4 to be powered off at the same time.
During work, firstly, a free end of the oil suction and return pipeline 14 is connected to the crawler type engineering machinery equipment oil box 11; after connection is completed, the startup button 15-1 on the control panel 15 is pressed and the electromotor 1 is powered on; the oil suction button 15-2 is pressed and the left electromagnet of the first electromagnetic valve 4 is powered on; at this time, the first reversing valve 4 works at the left position, the P port communicates with the A port through an oil path and the T port communicates with the B port through an oil path; the electromotor 1 drives the oil pump 2 to work after being powered on, the hydraulic oil in the crawler type engineering machinery equipment oil box 11 sequentially passes through the oil path between the T port and the B port of the first reversing valve 4, the oil pump
2, the oil path between the P port and the A port of the first reversing valve 4 and the one-way
valve B12 to enter the filtering oil boxes 7, the two filtering oil boxes 7 communicate with each
other, and the hydraulic oil is statically filtered in the filtering oil boxes 7; and in the static
filtration process, the partition plate type filtering core 7-3 filters the flotage in the hydraulic oil,
and the water and heavy impurities in the hydraulic oil are sedimented in the sediment collecting
storehouse 7-2.
After standing is performed for a period of time, the filter button 15-3 is pressed, the second
reversing valve 3 on the control panel 15 is powered on and the first reversing valve 4 is powered
off at the same time. The second reversing valve 3 works at a left position after being powered on,
the A port communicates with the P port through an oil path, and the T port communicates with
the B port through an oil path. The first reversing valve 4 works at a middle position after being
powered off, the A port and the B port are cut off, and the P port and the T port are cut off. At this
time, the filtered hydraulic oil in the filtering oil boxes 7 sequentially passes through the oil path
between the P port and the A port of the second reversing valve 3, the oil suction port and the oil
discharge port of the oil pump 2, the oil path between the B port and the T port of the second
reversing valve 3 and the fine filter 5 to enter the cleaning oil box 9.
After all the hydraulic oil in the crawler type engineering machinery equipment oil box 11 is
sucked and filtered, the oil supply button 15-4 is pressed, the second reversing valve 3 is powered
off, the A port and the B port are cut off, and the P port and the T port are cut off; meanwhile, the
right electromagnet of the first reversing valve 4 is powered on and works at a right position; at
this time, the P port and the B port of the first reversing valve 4 communicate with each other
through an oil path, the T port and the A port communicate with each other through an oil path, and the crawler type engineering machinery oil box 11 is filled with the filtered hydraulic oil; the filtered clean hydraulic oil in the cleaning oil box 9 sequentially passes through the one-way valve
AlO, the oil path between the P port and the B port of the first reversing valve 4, the oil pump 2
and the oil path between the T port and the A port of the first reversing valve 4 to enter the crawler
type engineering machinery equipment oil box 11; after oil change, the shutdown button 15-5 is
pressed and the electromotor 1 stops working, so that the oil pump 2 stops working; meanwhile,
the first reversing valve 4 is powdered off, the working position of the first reversing valve 4 is at
the middle position, the A port and the B port are cut off, the P port and the T port are cut off, the
oil suction and return pipeline 14 is pulled out of the crawler type engineering machinery
equipment oil box 11, and the filtering and changing work of the hydraulic oil in the crawler type
engineering machinery equipment oil box 11 is completed.
Claims (5)
1. A hydraulic oil changing device suitable for a crawler type engineering machinery
debugging field, comprising a moving trolley, wherein an electromotor, an oil pump, a filtering oil
box, a cleaning oil box and a control unit are mounted on the moving trolley; the electromotor is
electrically connected to the oil pump; the control unit includes a control panel, a first reversing
valve, a second reversing valve and a fine filter; the control panel is electrically connected to the
first reversing valve, the second reversing valve and the electromotor respectively;
a P port of the first reversing valve communicates with an upper space of the filtering oil box
through a one-way valve B, the P port of the first reversing valve also communicates with the
cleaning oil box through a one-way valve A, a T port of the first reversing valve is connected to
an oil suction and return pipeline, and an A port and a B port of the first reversing valve
communicate with an oil discharge port and an oil suction port of the oil pump respectively; and
a P port of the second reversing valve communicates with a bottom space of the filtering oil
box through a pipeline, a T port of the second reversing valve communicates with the cleaning oil
box through the fine filter, and an A port and a B port of the second reversing valve communicate
with the oil suction port and the oil discharge port of the oil pump respectively.
2. The hydraulic oil changing device suitable for the crawler type engineering machinery
debugging field according to claim 1, wherein two filtering oil boxes are mounted, the P port of
the first reversing valve communicates with upper spaces of the two filtering oil boxes
respectively through one-way valves B, and the P port of the second reversing valve
communicates with bottom spaces of the two filtering oil boxes respectively through pipelines.
3. The hydraulic oil changing device suitable for the crawler type engineering machinery
debugging field according to claim 2, wherein a partition plate type filtering core is mounted in
each of the filtering oil boxes, and the partition plate type filtering core is located on a lower part
of an oil inlet of each of the filtering oil boxes.
4. The hydraulic oil changing device suitable for the crawler type engineering machinery
debugging field according to claim 2 or 3, wherein a funnel-shaped sediment collecting
storehouse is arranged at the bottom of each of the filtering oil boxes, and the bottom of the sediment collecting storehouse is connected to a drain valve.
5. The hydraulic oil changing device suitable for the crawler type engineering machinery
debugging field according to claim 4, wherein the control panel comprises:
a startup button, configured to control the electromotor to be powered on;
an oil suction button, configured to control a left electromagnet of the first reversing valve to
be powered on;
a filter button, configured to control the second reversing valve to be powered on and control
the first reversing valve to be powered off at the same time;
an oil supply button, configured to control a right electromagnet of the first reversing valve to
be powered on and control the second reversing valve to be powered off; and
a shutdown button, configured to control the electromotor to be powered off and control the
first reversing valve to be powered off at the same time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020208746340 | 2020-05-22 | ||
| CN202020874634.0U CN212479774U (en) | 2020-05-22 | 2020-05-22 | Hydraulic oil changing device suitable for crawler-type engineering machinery debugging field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020104191A4 true AU2020104191A4 (en) | 2021-03-04 |
Family
ID=74411466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020104191A Ceased AU2020104191A4 (en) | 2020-05-22 | 2020-12-19 | Hydraulic oil changing device suitable for crawler type engineering machinery debugging field |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN212479774U (en) |
| AU (1) | AU2020104191A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017400A (en) * | 2021-11-05 | 2022-02-08 | 河南科技大学 | Hydraulic oil tank with self-cleaning function |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007058B (en) * | 2021-02-25 | 2023-01-03 | 中车制动系统有限公司 | Hand pump with oil extraction and oil absorption functions |
-
2020
- 2020-05-22 CN CN202020874634.0U patent/CN212479774U/en not_active Expired - Fee Related
- 2020-12-19 AU AU2020104191A patent/AU2020104191A4/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017400A (en) * | 2021-11-05 | 2022-02-08 | 河南科技大学 | Hydraulic oil tank with self-cleaning function |
| CN114017400B (en) * | 2021-11-05 | 2023-07-21 | 河南科技大学 | Hydraulic oil tank with self-cleaning function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN212479774U (en) | 2021-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |