CN106051437A - Water hydraulic cylinder type forced lubrication system for rocker arm of coal cutter - Google Patents
Water hydraulic cylinder type forced lubrication system for rocker arm of coal cutter Download PDFInfo
- Publication number
- CN106051437A CN106051437A CN201610557976.8A CN201610557976A CN106051437A CN 106051437 A CN106051437 A CN 106051437A CN 201610557976 A CN201610557976 A CN 201610557976A CN 106051437 A CN106051437 A CN 106051437A
- Authority
- CN
- China
- Prior art keywords
- oil
- check valve
- valve
- hydraulic cylinder
- rocker arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 34
- 238000005461 lubrication Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000004519 grease Substances 0.000 claims description 32
- 238000005065 mining Methods 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 41
- 230000001050 lubricating effect Effects 0.000 description 8
- 239000002828 fuel tank Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention belongs to a diluted oil lubrication system for rocker arm components of a large cutting height coal cutter or a steeply inclined coal cutter of a coal mine, in particular to a water hydraulic cylinder type forced lubrication system for a rocker arm of a coal cutter. The water hydraulic cylinder type forced lubrication system for the rocker arm of the coal cutter comprises an adjustable throttling valve, a three-position four-way electromagnetic reversing valve I, a water hydraulic cylinder, a flange, a three-position four-way electromagnetic reversing valve II, a lubrication cylinder, a check valve I, a check valve II, a check valve III, a check valve IV, a pressure relay, a filter I, a filter II, a coal cutter rocker arm motor location oil sump, a pressure reducing valve, a lubrication spray pipeline, a coal cutter rocker arm roller location oil sump and an outer spray pipeline. According to the system, the hydraulic pressure of a spray system is used as power without the need for an extra electric power supply, the power is transmitted by a piston rod of an oil cylinder, and oil is sucked by the lubrication oil cylinder and discharged by spray.
Description
Technical field
The invention belongs to coal mine large-mining height coal-winning machine, high-dipping rocker arm of coal mining machine parts oil lubricating system, specifically one
Plant rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system.
Background technology
Coal-winning machine lubrication mainly has splash lubrication and forced feed lubrication two class, mostly based on splash lubrication, for greatly at present
Mining height, high-dipping coal-winning machine, use gear pump type forced feed lubrication.
Splash lubrication: when rocking arm tilts, is in eminence gear and bearing can not get effectively lubricating, be in lower in rocking arm
Gear and bearing are too high due to oil level, impact heat radiation.
Gear pump type forced feed lubrication a: class is on the basis of the original duplex pump of coal-winning machine, then adds one group of gear pump, is used for adopting
The forced feed lubrication of coal machine rocking arm, but owing to pumping plant gear pump rotating speed is high, rocking arm fuel tank fuel quantity is limited, causes instantaneous fuel delivery big,
The forced feed lubrication time is short.Two classes are with rocking arm a certain low-speed gear axle, connect gear pump at axle head, and gear shaft moves as gear pump
Power, carries out forced feed lubrication, but due to during gear pump pumping lubricating oil rotating speed too low, and cannot well set up pressure reduction, actual should
With the most unstable.
Summary of the invention
The present invention is to solve that coal-winning machine lubrication deposits problem in the introduction, it is provided that a kind of rocker arm of coal mining machine hydraulic cylinder
Formula forcedlubricating system.
The present invention takes techniques below scheme: a kind of rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system, including hydraulic cylinder
And grease cylinders, the piston rod of hydraulic cylinder is threaded connection with the piston rod of grease cylinders, the piston rod of hydraulic cylinder and grease cylinders
Piston rod stroke is identical, and the cylinder body of hydraulic cylinder uses flange to be rigidly connected with the cylinder body of grease cylinders；Described grease cylinders sets
Have on A1 chamber and B1 chamber, A1 chamber and B1 chamber and be respectively arranged with hydraulic fluid port A1 and hydraulic fluid port A2；
The water inlet of hydraulic cylinder connects with the A mouth of three-position four-way electromagnetic directional valve I, the outlet of hydraulic cylinder and 3-position 4-way electromagnetism
The B mouth connection of reversal valve I, the T mouth of three-position four-way electromagnetic directional valve I and external spraying pipeline connection, three-position four-way electromagnetic directional valve I
P mouth connect with power source, be provided with adjustable throttling and stop valve between three-position four-way electromagnetic directional valve I and power source.
The hydraulic fluid port A1 of grease cylinders is divided into two oil circuits, an oil circuit to connect with the P mouth of three-position four-way electromagnetic directional valve, another
Bar oil circuit is connected with check valve I oil-in, and the hydraulic fluid port B1 of grease cylinders is divided into two oil circuits, an oil circuit to change with 3-position 4-way electromagnetism
Connecting to the T mouth of valve II, another oil circuit is connected with check valve II hydraulic fluid port, and the oil-out merging of check valve I and check valve II connects
Entering and lubricate atomizer passgae, the B mouth of three-position four-way electromagnetic directional valve II is connected with the oil-out of check valve III, and check valve III enters
Hydraulic fluid port is connected with oil sump at rocker arm of coal mining machine motor by filter I；The A mouth of three-position four-way electromagnetic directional valve II and check valve IV
Oil-out be connected, the oil-in of check valve IV is connected with oil sump at rocker arm of coal mining machine cylinder by filter II.
Oil circuit after the oil-out of check valve I and check valve II merges is provided with air relief valve.
It is provided with pressure switch between oil circuit and air relief valve after the oil-out merging of check valve I and check valve II.
Compared with prior art, the method have the advantages that
1., without additional power power source, use spraying system hydraulic pressure as power, transmit power by cylinder piston rod, pass through
Lubrication oil cylinder enters oil suction and spraying oil extraction.
2. with conventional lubrication system on power composition and parts composition, having the difference of essence, system heat generation amount is low, with
Original coal-winning machine, in addition to controlling to connect and connecting with spray water, associates without remaining,；
3. systems stay work, it is possible to set the lubrication time of fixed interval；
4. the continuous spray time of single is long, low pressure atomizing, high lubricating effect；
5. system bulk is little, easily installs maintenance, can single rocking arm each Self Matching set of system, it is also possible to double rocking arm parallel connections are suitable for.
6. controlling simple, internal system realizes automatically controlling by the pressure switch feedback signal of telecommunication, and its exterior is permissible
Individually closed by stop valve, by artificial Electronic control three-position four-way electromagnetic directional valve, change rocking arm at different mining heights
Position, oil suction pond during position.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
1-stop valve in figure, 2-adjustable throttling, 3-three-position four-way electromagnetic directional valve I, 4-hydraulic cylinder, 5-flange, 6-tri-four
Electric change valve II, 7-grease cylinders, 8.1-check valve I, 8.2-check valve II, 8.3-check valve III, 8.4-check valve IV,
9-pressure switch, oil sump at 10.1-filter I, 10.2-filter II, 11-rocker arm of coal mining machine motor, 12-air relief valve, 13-
Lubrication atomizer passgae, oil sump at 14-rocker arm of coal mining machine cylinder, 15-external spraying pipeline.
Detailed description of the invention
As it is shown in figure 1, a kind of rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system, including hydraulic cylinder 4 and grease cylinders 7, water
The piston rod of cylinder pressure 4 is threaded connection with the piston rod of grease cylinders 7, the piston rod of hydraulic cylinder 4 and the piston rod row of grease cylinders 7
Cheng Xiangtong, the cylinder body of hydraulic cylinder 4 uses flange 5 to be rigidly connected with the cylinder body of grease cylinders 7；Described grease cylinders 7 is provided with A1
Hydraulic fluid port A1 and hydraulic fluid port A2 it is respectively arranged with on chamber and B1 chamber, A1 chamber and B1 chamber.
The water inlet of hydraulic cylinder 4 connects with the A mouth of three-position four-way electromagnetic directional valve I3, the outlet of hydraulic cylinder 4 and three
The B mouth connection of four-way electromagnetic reversing valve I3, the T mouth of three-position four-way electromagnetic directional valve I3 connects with external spraying pipeline 15, three four
The P mouth of electric change valve I3 connects with power source, is provided with adjustable between three-position four-way electromagnetic directional valve I3 and power source
Valve 2 and stop valve 1.
The hydraulic fluid port A1 of grease cylinders 7 is divided into two oil circuits, an oil circuit to connect with the P mouth of three-position four-way electromagnetic directional valve II6,
Another oil circuit is connected with check valve I8.1 oil-in, and the hydraulic fluid port B1 of grease cylinders 7 is divided into two oil circuits, an oil circuit and three four
The T mouth connection of electric change valve II6, another oil circuit is connected with check valve II8.2 oil-in, check valve I8.1 and check valve
The oil-out of II8.2 merges access lubrication atomizer passgae 13, the B mouth of three-position four-way electromagnetic directional valve II6 and check valve III8.3
Oil-out be connected, the oil-in of check valve III8.3 is connected with oil sump 11 at rocker arm of coal mining machine motor by filter I10.1；
The A mouth of three-position four-way electromagnetic directional valve II6 is connected with the oil-out of check valve IV8.4, and the oil-in of check valve IV8.4 passed through
Filter II10.2 is connected with oil sump 14 at rocker arm of coal mining machine cylinder.
Power system principle and structure:
1) system principle: native system uses coal miner spray system pressure water (6 7Mpa) to be power source, by driving hydraulic cylinder
4 pistons move reciprocatingly, and the piston rod of hydraulic cylinder 4 is threaded connection with grease cylinders 7 piston rod, hydraulic cylinder 4 piston rod past
Multiple motion, promotes grease cylinders 7 piston to move reciprocatingly, and hydraulic cylinder 4 is identical with grease cylinders 7 piston stroke.
2) system structure: water suction cylinder pressure 4 supplies water in water route, is furnished with stop valve 1 and closes for the shutdown of system and maintenance；Join
There is adjustable throttling 2 to change hydraulic cylinder 4 flow of inlet water, reach to control the purpose of hydraulic cylinder 4 piston movement speed；Also configure that three
Four-way electromagnetic reversing valve 3, changes the water inlet direction of hydraulic cylinder 4, and draining is discharged by external spraying pipeline 15, meanwhile, in system not
During work, if desired for strengthening external spraying effect, by the Median Function of three-position four-way electromagnetic directional valve 3, water will be entered and directly connect
External spraying pipeline 15 is discharged, it is achieved external spraying.
Lubricating system principle and structure:
1) the continuous principles and structure of lubricating system: grease cylinders 7 piston rod uses with hydraulic cylinder 4 threadeds, and cylinder body is adopted
It is rigidly connected with flange 5, design A chamber and A1 cavity length LA＞ LA1, it is ensured that grease cylinders A1, B1 chamber, can when system works
To realize total travel work, when grease cylinders 7 piston is in extreme position, lubricating system outlet pressure is 0MPa, now pressure
Relay 9 sends signal, controls three-position four-way electromagnetic directional valve 3 and carries out switch operation, it is achieved hydraulic cylinder 4 drives grease cylinders 7 past
Move in another direction, thus the system that realizes works continuously.
2) the lubricating oil pumping theory of lubricating system and structure: B1 chamber, grease cylinders 7A1 chamber is respectively provided with a hydraulic fluid port, each
Individual outlet is divided into two-way oil circuit, a point of oil circuit to be connected with three-position four-way electromagnetic directional valve 6, a point of oil circuit and check valve I8.1
After being connected with check valve II8.2, then two-way check valve I8.1 and check valve II8.2 oil circuit are merged access lubrication atomizer passgae
13；Lubrication atomizer passgae 13 passes through air relief valve 12 by final spray press control between 0.5-0.8MPa, and air relief valve 12 is with single
To between valve I8.1, check valve II8.2 use pressure switch 9 gather pressure signal, by measure pressure size and judge be
Whether system commutates.
3) lubricating oil of lubricating system draws principle and structure: suck fuel tank by rocker arm of coal mining machine cylinder oil sump 14 with adopt
Forming at oil sump 11 liang at coal machine Rocker arm-motor, two-way sucks in oil circuit, is respectively provided with filter 10 and check valve 8, filter 10
Playing the effect of cleaning spraying system mist of oil, when check valve 8 stops grease cylinders 7 oil extraction, lubricating oil returns oil by oil suction line
Pond.Two-way inlet line is connected with grease cylinders 7 by three-position four-way electromagnetic directional valve 6, the system manually or automatically signal of telecommunication,
Make three-position four-way electromagnetic directional valve 6 obtain electric work, change spool position, change oil suction position, it is ensured that oil suction oil sump is in low
Position.When rocker arm of coal mining machine is in mining height position, at rocker arm of coal mining machine motor, oil sump 11 is as sucking fuel tank, works as rocker arm of coal mining machine
When being in planted agent position, at rocker arm of coal mining machine cylinder, oil sump 14 is as sucking fuel tank.
Claims (3)
1. a rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system, it is characterised in that: include hydraulic cylinder (4) and grease cylinders (7),
The piston rod of hydraulic cylinder (4) is threaded connection with the piston rod of grease cylinders (7), the piston rod of hydraulic cylinder (4) and grease cylinders (7)
Piston rod stroke identical, the cylinder body of the cylinder body of hydraulic cylinder (4) and grease cylinders (7) uses flange (5) to be rigidly connected；Described
Grease cylinders (7) be provided with on A1 chamber and B1 chamber, A1 chamber and B1 chamber and be respectively arranged with hydraulic fluid port A1 and hydraulic fluid port A2；
The water inlet of hydraulic cylinder (4) and three-position four-way electromagnetic directional valve I(3) A mouth connect, the outlet and three of hydraulic cylinder (4)
Position four-way electromagnetic reversing valve I(3) the connection of B mouth, three-position four-way electromagnetic directional valve I(3) T mouth and external spraying pipeline (15) even
Logical, three-position four-way electromagnetic directional valve I(3) P mouth connect with power source, three-position four-way electromagnetic directional valve I(3) and power source between
It is provided with adjustable throttling (2) and stop valve (1)；
The hydraulic fluid port A1 of grease cylinders (7) is divided into two oil circuits, an oil circuit and three-position four-way electromagnetic directional valve II(6) P mouth connect,
Another oil circuit and check valve I(8.1) oil-in is connected, and the hydraulic fluid port B1 of grease cylinders (7) is divided into two oil circuits, an oil circuit and three
Position four-way electromagnetic reversing valve II(6) the connection of T mouth, another oil circuit and check valve II(8.2) oil-in is connected, check valve I
(8.1) and check valve II(8.2) oil-out merge access lubrication atomizer passgae (13), three-position four-way electromagnetic directional valve II(6)
B mouth and check valve III(8.3) oil-out be connected, check valve III(8.3) oil-in by filter I(10.1) with adopt
At coal machine Rocker arm-motor, oil sump (11) is connected；Three-position four-way electromagnetic directional valve II(6) A mouth and check valve IV(8.4) fuel-displaced
Mouthful be connected, check valve IV(8.4) oil-in by filter II(10.2) be connected with oil sump (14) at rocker arm of coal mining machine cylinder.
Rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system the most according to claim 1, it is characterised in that: check valve I
(8.1) and check valve II(8.2) oil-out merge after oil circuit be provided with air relief valve (12).
Rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system the most according to claim 2, it is characterised in that: check valve I
(8.1) and check valve II(8.2) oil-out merge after oil circuit and air relief valve (12) between be provided with pressure switch (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557976.8A CN106051437B (en) | 2016-07-15 | 2016-07-15 | Rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557976.8A CN106051437B (en) | 2016-07-15 | 2016-07-15 | Rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106051437A true CN106051437A (en) | 2016-10-26 |
| CN106051437B CN106051437B (en) | 2018-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610557976.8A Active CN106051437B (en) | 2016-07-15 | 2016-07-15 | Rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106051437B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488296A (en) * | 2019-01-03 | 2019-03-19 | 天地科技股份有限公司上海分公司 | External spraying auto-increasing pressure and system built in coalcutter |
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|---|---|---|---|---|
| CN202228894U (en) * | 2011-07-29 | 2012-05-23 | 天地上海采掘装备科技有限公司 | Centralized refueling device for coal mining machine |
| CN202325507U (en) * | 2011-12-12 | 2012-07-11 | 西安煤矿机械有限公司 | Automatic oiling device for hydraulic system of coal mining machine |
| CN102777177A (en) * | 2012-08-18 | 2012-11-14 | 江苏中机矿山设备有限公司 | Cantilever type coal cutter rocking arm |
| CN104612933A (en) * | 2015-01-31 | 2015-05-13 | 山东国地水利土地勘察设计有限公司 | Vertical hydraulic inner tube slurry pump |
| CN204459709U (en) * | 2014-12-31 | 2015-07-08 | 太重煤机有限公司 | Coal winning machine thin oil centralized lubrication system |
| CN104791212A (en) * | 2015-03-12 | 2015-07-22 | 中国石油天然气股份有限公司 | Simple cluster type well group pressurization system and pressurization method thereof |
| CN205859564U (en) * | 2016-07-15 | 2017-01-04 | 太重煤机有限公司 | Rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system |
-
2016
- 2016-07-15 CN CN201610557976.8A patent/CN106051437B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202228894U (en) * | 2011-07-29 | 2012-05-23 | 天地上海采掘装备科技有限公司 | Centralized refueling device for coal mining machine |
| CN202325507U (en) * | 2011-12-12 | 2012-07-11 | 西安煤矿机械有限公司 | Automatic oiling device for hydraulic system of coal mining machine |
| CN102777177A (en) * | 2012-08-18 | 2012-11-14 | 江苏中机矿山设备有限公司 | Cantilever type coal cutter rocking arm |
| CN204459709U (en) * | 2014-12-31 | 2015-07-08 | 太重煤机有限公司 | Coal winning machine thin oil centralized lubrication system |
| CN104612933A (en) * | 2015-01-31 | 2015-05-13 | 山东国地水利土地勘察设计有限公司 | Vertical hydraulic inner tube slurry pump |
| CN104791212A (en) * | 2015-03-12 | 2015-07-22 | 中国石油天然气股份有限公司 | Simple cluster type well group pressurization system and pressurization method thereof |
| CN205859564U (en) * | 2016-07-15 | 2017-01-04 | 太重煤机有限公司 | Rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488296A (en) * | 2019-01-03 | 2019-03-19 | 天地科技股份有限公司上海分公司 | External spraying auto-increasing pressure and system built in coalcutter |
| CN109488296B (en) * | 2019-01-03 | 2024-05-03 | 天地科技股份有限公司上海分公司 | Automatic pressurizing method and system for built-in external spraying of coal mining machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106051437B (en) | 2018-12-28 |
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