CN106958734A - The two-way mutual lubricating system of rocker arm of coal mining machine and rocker arm of coal mining machine - Google Patents
The two-way mutual lubricating system of rocker arm of coal mining machine and rocker arm of coal mining machine Download PDFInfo
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- CN106958734A CN106958734A CN201710306119.5A CN201710306119A CN106958734A CN 106958734 A CN106958734 A CN 106958734A CN 201710306119 A CN201710306119 A CN 201710306119A CN 106958734 A CN106958734 A CN 106958734A
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 175
- 238000005065 mining Methods 0.000 title claims abstract description 56
- 239000003245 coal Substances 0.000 title claims abstract description 54
- 238000005461 lubrication Methods 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims description 63
- 239000012530 fluid Substances 0.000 claims description 30
- 239000011159 matrix material Substances 0.000 claims description 19
- 238000010276 construction Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 12
- 238000005304 joining Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 285
- 238000000151 deposition Methods 0.000 description 20
- 230000008021 deposition Effects 0.000 description 10
- 239000000314 lubricant Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 230000001154 acute effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000020535 bottled fortified water Nutrition 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012546 transfer 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
-
- 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
-
- 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
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
-
- 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
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
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- 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)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to a kind of two-way mutual lubricating system of rocker arm of coal mining machine and rocker arm of coal mining machine, two-way mutual lubricating system is provided with high, low speed end lubricating pump, speed end lubricating pump oil outlet is communicated by height to oil duct with the oil site of some axle groups at nearly low speed end in low speed end lubricating pump oil sump, inner side oil site and transmission system, low speed end lubricating pump oil outlet is communicated by low height to oil duct with the oil site of speed end lubricating pump oil sump, inner side oil site and remaining each axle group, and lubricating pump its gear each on pump shaft in high, low speed end is engaged with high, low speed end axle group gear respectively.The rocker arm of coal mining machine uses the two-way mutual lubricating system, and speed end lubricating pump oil outlet is communicated with the oil site of the five, the six, seven, eight axle groups, and the oil outlet of low speed end lubricating pump is communicated with the oil site of first, second, third and fourth axle group.The present invention can solve to stop the problem of high-order lubricating pump of appearance and difficult each axle group bearing lubrication after coal mining captain's rocking arm wide swing angle for a long time.
Description
Technical field
The present invention relates to a kind of rocker arm of coal mining machine lubricating system, particularly no matter rocker arm of coal mining machine is in upper pendulum or the bottom
State, the high-end system that can mutually provide lubrication between low side of rocking arm, belongs to coal-winning machine technical field.
Background technology
To meet exploitation needs, the Capability Requirement that coal-winning machine adapts to wide scope seam mining is just stepped up, and coal-winning machine shakes
The hunting range of arm design is also increasing, but bring one it is larger the problem of be exactly, it is long-armed for existing flat and thin
There is the lubrication problem of high point final drive system bearings after large angle pendulum raises up in frame rocking arm, and especially modernization is greatly enhanced
Rocking arm more cannot get good lubrication and faults frequent during the long period exploitation of degree working face, some face in steep thick coal seam exploitations
Even more bring the lubrication problem of rocking arm.
Although also taking substantial amounts of measure for the lubrication problem of rocking arm in the industry：What is had installs lubricating pump in high speed low side
To the high-end realization of upper pendulum rocker lubrication, but lubrication of setting when can not meet rocking arm bottom state；Have in high inclination-angle work
The lower end for making face can not meet the lubrication needs of rocking arm when installing lubricating pump but wide scope exploitation；What is had all pacifies at rocking arm two ends
Lubricating pump is filled, but in the high-end easy long-time oil starvation of lubricating pump, therefore the life-span is very low, so as to have a strong impact on the entirety of rocking arm
Reliability.It is that above-mentioned substantial amounts of technical measures can not solve coal-winning machine well under wide scope seam mining work condition environment
The lubrication problem of rocking arm, it is difficult to adapt to the development of coal-winning machine modernization exploitation.
The content of the invention
To solve the above mentioned problem of prior art, the invention provides a kind of two-way mutual lubricating system of rocker arm of coal mining machine and adopt
Coal machine rocking arm, it is possible to resolve stop the high end position lubricating pump of appearance after coal mining captain's rocking arm wide swing angle for a long time and each
The lubrication problem of axle group bearing, improves the functional reliability and the adaptability to wide scope seam mining of rocker arm of coal mining machine.
The main technical schemes of the present invention have：
A kind of two-way mutual lubricating system of rocker arm of coal mining machine, provided with speed end lubricating pump and low speed end lubricating pump, the high speed
Several axle groups for holding lubricating pump to deliver to fluid to oil duct by height in the transmission system of rocking arm close to low speed end are respective
The inner side oil site of oil site and low speed end lubricating pump and it is ejected on the pump shaft of low speed end lubricating pump, it is described low
Fast end lubricating pump passes through low high several axle groups that fluid is delivered to remaining close speed end in the transmission system to oil duct
The inner side oil site of respective oil site and the speed end lubricating pump and it is ejected on the pump shaft of the speed end lubricating pump,
The height of the gear that the speed end lubricating pump and low speed end lubricating pump are each fixedly mounted on pump shaft respectively with the transmission system
Fast end axle group gear and the engagement of low speed end axle group gear.
The height to oil duct and it is low it is high to oil duct can be any one following structural shape：Structural shape (1) is described
Height includes being arranged on height in the housing of the rocking arm to main oil gallery and height to branch's oil duct to oil duct, the height to
The top that main oil gallery is preferably laid in the housing is extended from speed end to low speed end, and the height is to main oil gallery provided with multiple
The outlet being connected is corresponded to branch's oil duct with the height, wherein the exit of oil site is provided with nozzle, institute
State height to communicate to branch's oil duct with the corresponding height via the damping hole of the nozzle to main oil gallery, towards the low speed
The outlet of the pump shaft of lubricating pump is held to be communicated through speed end unloading port with the oil sump of low speed end lubricating pump, the speed end unloading
The exit normal in hole points to the pump shaft of low speed end lubricating pump, and the speed end unloading port and the height are to institute on main oil gallery
The damping hole actual internal area sum for having nozzle is less than actual internal area of the height to main oil gallery, again smaller than the speed end
The actual internal area of the oil outlet of lubricating pump；
It is described low high low high to main oil gallery and low high to branch's oil duct in the housing including being arranged on to oil duct, it is described
The top that low height is preferably laid in the housing to main oil gallery is extended from low speed end to speed end, described low high to be set on main oil gallery
There are multiple outlets being connected with the low height to branch's oil duct one-to-one corresponding, wherein being provided with spray towards the exit of oil site
Mouth, the low height is communicated via the damping hole of the nozzle to main oil gallery with the corresponding low height to branch's oil duct, towards institute
The outlet for stating the pump shaft of speed end lubricating pump is communicated through low speed end unloading port with the oil sump of the speed end lubricating pump, the low speed
Hold the exit normal of unloading port to point to the pump shaft of the speed end lubricating pump, low speed end unloading port with it is described low high to main oil
The damping hole actual internal area sum of all nozzles is less than the low high actual internal area to main oil gallery on road, again smaller than described
The actual internal area of the oil outlet of low speed end lubricating pump；
Structural shape (2) height is to oil duct and low high to actual internal area uniformity or only existing everywhere on oil duct
Gradual change type transition, each branch road actual internal area minimum value sum that the height leads to each oil site and pump shaft to oil duct is less than institute
The actual internal area of the oil outlet of speed end lubricating pump is stated, the low height leads to each branch road stream of each oil site and pump shaft to oil duct
Logical sectional area minimum value sum is less than the actual internal area of the oil outlet of low speed end lubricating pump.
The nozzle includes diplopore and damps nozzle and single hole damping nozzle, for a height to branch's oil duct or low
The high situation to branch's oil duct one oil site of correspondence, the corresponding nozzle damps nozzle using single hole, for described in one
Height is damped to branch's oil duct or the low high situation to branch's oil duct two oil sites of correspondence, the corresponding nozzle using diplopore
Nozzle, two damping holes of the diplopore damping nozzle connect main oil gallery and respective branch oil where it independently of each other respectively
Lead to the different oil circuits of two oil sites on road.
The height is to the outlet on main oil gallery and the low height to the outlet on main oil gallery preferably from it
The cavernous structure that the bottom of place main oil gallery is extended downwardly；
The matrix underpart of the single hole damping nozzle is shell portion, and its damping hole has one, the upper end of the damping hole
The region beyond described matrix upper top is opened on, lower ending opening is in the bottom surface of the shell portion, the single hole damping spray
The top of the cavernous structure of outlet is arranged to counterbore where mouth, and the shell portion is tightly fitted in the counterbore, described matrix
Top surface and bottom surface fit and be resisted against on the bottom surface of the top surface of corresponding main oil gallery and the counterbore respectively；
The matrix of the diplopore damping nozzle, which is provided between upper shell portion and lower shell portion, upper and lower shell portion, is
Circumferential groove in its end portion, its damping hole has two, and separate, and the upper end of two damping holes is opened on described matrix top top
Region beyond face, the lower ending opening of a damping hole is in the bottom surface of the lower shell portion, another described damping hole
Lower ending opening in the groove inner surface of the circumferential groove in its end portion, the lower end of the cavernous structure of outlet where the diplopore damping nozzle with
One horizontal oilhole is communicated, and the horizontal oilhole is communicated with two vertical oilholes being disposed below, one of them described vertical oil
Hole it is suitable for reading just right with the opening, the top of the vertical oilhole is arranged to counterbore, and the upper shell portion tightly fits in described
In the cavernous structure of outlet, the lower shell portion is tightly fitted in the counterbore, the circumferential groove in its end portion and the horizontal oilhole
Communicate, the top surface of described matrix and bottom surface are fitted and be resisted against on the bottom surface of the top surface of corresponding main oil gallery and the counterbore respectively.
Each axle group in the transmission system can also further use following structure：
(1) the axial of two ends supporting construction axle group is respectively arranged at two ends with end cap in the transmission system, and the end cap is consolidated
Determine on the housing, the lateral surface of at least end cap of one end exposes to the housing, the inner side of the end cap in two ends
Face is provided with the annular flange of axial evagination, the radially inner and outer periphery of the flange and is respectively equipped with radially inner ring groove and radial direction
Outer groove, if the top of the flange is provided with the through hole that radially outer ring groove described in capable person and radially inner ring groove connect, the footpath
Communicated to outer groove with the height corresponding to corresponding axle group to branch's oil duct or low height to the joining distal ends of branch's oil duct, institute
The medial surface of end cap is stated towards the outer face of the respective end spring bearing of corresponding axle group；
(2) central shaft of interlude supporting construction axle group is provided with central blind hole, the central shaft in the transmission system
Middle part and nearly root be respectively provided with the radial direction oil hole communicated with the central blind hole, nearly root and be additionally provided with radially outer ring groove, institute
Radially outer ring groove and the height corresponding to corresponding axle group are stated to branch's oil duct or the low high joining distal ends phase to branch's oil duct
Logical, the radial direction oil hole of nearly root is opened in outward opening in the radially outer ring groove, the radial direction oil hole at middle part
Installation site of two groups of the centre spring bearing of the interlude supporting construction axle group on the central shaft is opened in outward opening
Between.
The through hole on the flange can from top to bottom point to the medial surface of corresponding end cap, or, the through hole edge
Radially extend, or, the medial surface of the lower mouth and corresponding end cap of the through hole fits.
The two-way mutual lubricating system of rocker arm of coal mining machine is also preferably equipped with auxiliary coolant system, and the auxiliary coolant system can
With including following structural shape：
Structural shape (a)：For structural shape (1) the height to oil duct and low high to oil duct, set respectively and institute
Height is stated to main oil gallery and the low high cooler corresponding to main oil gallery, its institute is served as with the exothermic medium passage of the cooler
A part from the corresponding height to main oil gallery and the low high part to main oil gallery；For the institute of structural shape (2)
Height is stated to oil duct and low height to oil duct, is set respectively with the height to oil duct and the low high cooler corresponding to oil duct,
The height corresponding to it is served as with the exothermic medium passage of the cooler to the part of the trunk roads of oil duct and described
A part for the low high trunk roads to oil duct；
Structural shape (b)：For structural shape (1) the height to oil duct and low high to oil duct, at least two layings
The water channel extended on the top of the housing from speed end to low speed end, two water channels and the height are to main oil gallery and low
It is high to be interval with some (operating) water nozzles on the water channel, one end of the water channel is communicated with water hole to main oil gallery spaced arrangement,
The other end is closed, and the water hole is arranged in the housing, on the outer surface for being opened on the housing；
When the height uses structural shape (1) to oil duct and low height to oil duct, the auxiliary coolant system is using knot
Configuration formula (a) and/or structural shape (b), it is described when the height uses structural shape (2) to oil duct and low height to oil duct
Auxiliary coolant system uses structural shape (a).
A kind of rocker arm of coal mining machine, its lubricating system uses above-mentioned any one described two-way mutual lubricating system, the transmission
System can be provided with the first axle group being connected successively, the second axle group, the 3rd axle group, the 4th axle group, the 5th axle group, the 6th axle
Group, the 7th axle group and the 8th axle group, the first axle group are driven by motor, and the first axle group is speed end axle group, described the
Eight axle groups be low speed end axle group, the 5th axle group, the 6th axle group, the 7th axle group and the 8th respective oil site of axle group with it is described
The oil outlet of speed end lubricating pump is communicated, the first axle group, the second axle group, the 3rd axle group and the 4th respective oil site of axle group
Communicated with the oil outlet of low speed end lubricating pump.
The height is to main oil gallery and the low height is to rib side of the main oil gallery preferably respectively close to the rocking arm and adopts
Empty side, the second axle group, the 4th axle group and the 7th axle group are interlude supporting construction axle group, the first axle group, the 3rd axle
Group, the 5th axle group, the 6th axle group and the 8th axle group are two ends supporting construction axle group, and the height is to leading to described the on main oil gallery
The exit of the oil site of the inner side of seven axle groups and low speed end lubricating pump sets the single hole damping nozzle, towards described the
The exit of the oil site of five axle groups, the 6th axle group and the 8th axle group sets the diplopore damping nozzle, described low high to main oil
The exit of oil site on road towards the inner side of the second axle group, the 4th axle group and the speed end lubricating pump sets the single hole
Nozzle is damped, the diplopore damping nozzle is set towards the exit of first axle group and the oil site of the 3rd axle group.
The two ends of the pump shaft of the speed end lubricating pump and low speed end lubricating pump are by bearings, and interior end bearing is phase
The inner side oil site of lubricating pump is answered, outer end bearings are the outside oil site of associated lubrication pump, and the pump shaft is helical axis, close to outer
In the besieged cylindrical tube shape chamber set on the housing of the part pump shaft of end bearing, close to the part pump shaft of interior end bearing
In the oil sump, the oil outlet of the lubricating pump is arranged in the housing, the upper end of the oil outlet with it is corresponding
Main oil gallery is communicated, and lower end is communicated with the cylindrical tube shape chamber and close to the outer end bearings.
The beneficial effects of the invention are as follows：
The two-way mutual lubricating system of the present invention realizes no matter which end at rocking arm two ends is in high-order or low level, rocking arm two
End lubricating pump can mutually be lubricated, while also assures that the lubrication of each axle group bearing in rocker arm transmission system two ends, greatly
Ground improves adaptability of the rocker arm of coal mining machine to wide scope seam mining.
Due to being provided with auxiliary coolant system, realize to height to oil duct and the low high fortified water to the fluid inside oil duct
It is cold, the heating of rocking arm is significantly reduced, the reliability of rocking arm is improved.
By setting the structures such as specific radially outer ring groove, radially inner ring groove and through hole on the end cap of axle group, it is not only
Enter effective water conservancy diversion of oil site to fluid, the chance for also making full use of end cap to be contacted with fluid further enhances radiating, it is special
Not for exposed end cap, by setting the position and direction of the through hole, take full advantage of it is air-cooled, so as to further improve
The heat-sinking capability of rocking arm.The present invention uses a nested structure, obtains the dual function system of two-way mutual lubrication and supplement heat rejecter.
By setting primary depositing groove and secondary deposition slot structure on the end cap of axle group, central shaft, promote in fluid
The deposition of impurity, makes lubrication oil liquid more clean, and not only improves lubricant effect, further improves the reliable operation of rocking arm
Property.
The present invention solve the high-order lubricating pump that stops appearance after coal mining captain's rocking arm wide swing angle for a long time and
The lubrication problem of each axle group bearing, while also improving the heat-sinking capability of swing arm, significantly improves the reliability of rocker arm of coal mining machine
With the adaptability to wide scope seam mining, especially apply in face in steep thick coal seam on short fuselage coal-winning machine with more aobvious
Write effect.
Brief description of the drawings
Fig. 1 a are the contour structures schematic diagram of one embodiment of the rocker arm of coal mining machine of the present invention；
Fig. 1 b are Fig. 1 a top view；
Fig. 2 is the lubricating pump and transmission system sectional view of the rocker arm of coal mining machine of the present invention；
Fig. 3 is the schematic diagram (concealing water channel) of the main oil gallery of the two-way mutual lubricating system of rocker arm of coal mining machine of the present invention；
Fig. 4 is the schematic diagram (concealing main oil gallery) of the water channel of the two-way mutual lubricating system of rocker arm of coal mining machine of the present invention；
Fig. 5 is the speed end lubricating pump A-A sectional views of the two-way mutual lubricating system of rocker arm of coal mining machine of the present invention；
Fig. 6 is the low speed end lubricating pump B-B sectional views of the two-way mutual lubricating system of rocker arm of coal mining machine of the present invention；
Fig. 7 a are the rib side lubricant passage way schematic diagram of the 5th axle group of the rocker arm of coal mining machine of the present invention；
Fig. 7 b are the C-C sectional views of the 5th axle group of the rocker arm of coal mining machine of the present invention；
Fig. 7 c are the mined out side lubricant passage way schematic diagram of the 5th axle group of the rocker arm of coal mining machine of the present invention；
Fig. 8 a are the D-D sectional views of the 7th axle group of the rocker arm of coal mining machine of the present invention；
Fig. 8 b are the central shaft lubricant passage way schematic diagram of the 7th axle group of the rocker arm of coal mining machine of the present invention；
Fig. 9 a are the rib side lubricant passage way schematic diagram of the 3rd axle group of the rocker arm of coal mining machine of the present invention；
Fig. 9 b are the E-E sectional views of the 3rd axle group of the rocker arm of coal mining machine of the present invention；
Fig. 9 c are the mined out side lubricant passage way schematic diagram of the 3rd axle group of the rocker arm of coal mining machine of the present invention；
Figure 10 a are the F-F sectional views of the 4th axle group of the rocker arm of coal mining machine of the present invention；
Figure 10 b are the central shaft lubricant passage way schematic diagram of the 4th axle group of the rocker arm of coal mining machine of the present invention；
Figure 11 damps the sectional view of one embodiment of nozzle for the diplopore of the present invention；
Figure 12 damps the sectional view of one embodiment of nozzle for the single hole of the present invention.
Reference：
Z1. first axle group；Z2. the second axle group；Z3. the 3rd axle group；Z4. the 4th axle group；Z5. the 5th axle group；Z6. the 6th axle
Group；Z7. the 7th axle group；Z8. the 8th axle group；
1. speed end lubricating pump；11. speed end lubricating pump outer end bearings；12. the pump shaft of speed end lubricating pump；13. at a high speed
Hold end bearing in lubricating pump；14. speed end lubricates pump gear；15. the oil outlet of speed end lubricating pump；
2. height is to main oil gallery；21. height is to vertical oilhole；22. height is to oil groove；23. height is to horizontal oilhole；24.
Just to horizontal oilhole gusset；
3. diplopore damps nozzle；31. the 5th axle group damps nozzle with diplopore；32. the 6th axle group damps nozzle with diplopore；
33. the 8th axle group damps nozzle with diplopore；34. the 3rd axle group damps nozzle with diplopore；35, first axle group is damped with diplopore sprays
Mouth；3111. long inclined holes；3112. long centre bores；3113. side openings；3114. annular grooves；3115. top surfaces；The upper shell portion of 3116. length；
The lower shell portion of 3117. length；
4. single hole damps nozzle；41. the 7th axle group damps nozzle with single hole；Sprayed 42. low speed end lubricating pump is damped with single hole
Mouth；43. the 4th axle group damps nozzle with single hole；44. the second axle group damps nozzle with single hole；45. speed end lubricating pump single hole
Damp nozzle；4111. inclined holes；4112. centre bores；4113. top surfaces；4114. shell portions；
Speed end 5. (lubricating pump) unloading port；
6. low speed end lubricating pump；61. low speed end lubricating pump outer end bearings；62. the pump shaft of low speed end lubricating pump；63. low speed
Hold end bearing in lubricating pump；64. low speed end lubricates pump gear；65. the oil outlet of low speed end lubricating pump；
7. it is low high to main oil gallery；71. it is low high to vertical oilhole；72. it is low high to oil groove；73. it is low high to horizontal oilhole；74.
It is low high to horizontal oilhole gusset；
Low speed end 8. (lubricating pump) unloading port；
9. assistant cooling structure；911. water holes；912. rib side water channels；913. mined out side water channels；914. (operating) water nozzles；921.
Rib side end cap；9211. rib side end cap primary depositing grooves；9212. rib side end cap secondary deposition grooves；9213. rib sides
Cover into oilhole；9214. rib side end cap medial surfaces；922. mined out side end caps；9221. mined out side end cap primary depositing grooves；9222.
Mined out side end cap secondary deposition groove；9223. mined out side end caps enter oilhole；9224. mined out side end cap medial surfaces；93. transmission system；
ZXZ1. the mined out side secondary deposition groove of central shaft；ZXZ2. the mined out side primary depositing groove of central shaft；ZXZ3. central shaft is adopted
Empty side upper end enters oilhole.
Embodiment
The invention discloses a kind of two-way mutual lubricating system of rocker arm of coal mining machine, as shown in figs. 1-12, provided with speed end lubrication
In pump 1 and low speed end lubricating pump 6, the transmission system 93 that fluid is delivered to rocking arm to oil duct by the speed end lubricating pump by height
Close to several respective oil sites of axle group at low speed end and the inner side oil site of low speed end lubricating pump (close to the swing arm
The edge of housing be outside, be inner side close to the center portion of the housing), and be ejected into the pump shaft of low speed end lubricating pump
On.If fluid is delivered to remaining close speed end in the transmission system by low speed end lubricating pump by low height to oil duct
The inner side oil site of the dry respective oil site of axle group and the speed end lubricating pump, and it is ejected into the speed end lubricating pump
Pump shaft on.The gear 14 and 64 being fixedly mounted on the speed end lubricating pump and the respective pump shaft 12 and 62 of low speed end lubricating pump
Engaged respectively with the speed end axle group gear and low speed end axle group gear of the transmission system.After the transmission system starts, institute
Speed end lubricating pump and low speed end lubricating pump are stated under the drive of speed end axle group and low speed end axle group and is started while obtaining power
Operating.Speed end lubricating pump except for close to low speed end some axle groups provides lubrication in addition to, also for low speed end lubrication oil pump feed with
And lubrication is provided for its inner side oil site, meanwhile, low speed end lubricating pump for some axle groups close to speed end except providing lubrication
Outside, also lubricate oil pump feed for speed end and provide lubrication for its inner side oil site.Fluid or mist of oil are ejected on corresponding pump shaft,
Lubricating pump where pump shaft can be made has oil-feed always, and the outside that on the one hand pump shaft rotation brings fluid into associated lubrication pump lubricates
Point, as long as pump shaft keeps rotation, outside oil site can just be in good lubricating status in real time, on the other hand also can guarantee that corresponding
Lubricating pump constantly outwards exports fluid.
The present invention realizes the mutual lubrication of rocking arm two ends lubricating pump, it is to avoid show in high-order lubricating pump long-term oil starvation
As while also assures that the lubrication of each axle group bearing in transmission system, improving rocker arm of coal mining machine to wide scope seam mining
Adaptability.Here so-called speed end and low speed end refer respectively to head end and end of the transmission system according to power direction of transfer
End, for distinguishing the lubricating pump that the lubricating pump is which end in the swing arm.The height to oil duct and it is low height to oil duct both
The duct opened up in the housing that can be external pipeline or the rocking arm, or the combination of the two.
The height can be using any one following structural shape to oil duct to oil duct and low height：
Structural shape (1)：The height includes being arranged on height in the housing of the rocking arm to the He of main oil gallery 2 to oil duct
Just to branch's oil duct.The height is preferably laid in the top (top shown in Fig. 1 a, similarly hereinafter) of the housing to main oil gallery
Extended from speed end to low speed end.The height to main oil gallery provided with it is multiple with the height to branch's oil duct one-to-one corresponding phase
The outlet of connection, wherein being preferably provided with nozzle towards the exit of oil site, the height is to main oil gallery via the nozzle
Damping hole communicated with the corresponding height to branch's oil duct, make the speed end lubricating pump to the fuel-displaced of corresponding each oil site
Form high pressure, towards low speed end lubricating pump pump shaft outlet through speed end unloading port 5 and low speed end lubricating pump
Oil sump is communicated.The exit normal of the speed end unloading port points to the pump shaft of low speed end lubricating pump.The speed end unloading
The actual internal area in hole should be sufficiently small so that the pump shaft that hydraulic oil sprays to low speed end lubricating pump can be formed at this so that speed end
Lubricating pump can not be influenceed and normal work by each swing position of swing arm.The speed end unloading port and the height are to main oil
The damping hole actual internal area sum of all nozzles is preferably smaller than actual internal area of the height to main oil gallery on road, again smaller than
The actual internal area of the oil outlet of the speed end lubricating pump so that even the high pressure formed is from low level to high-order oil spout
Also ideal oil supply effect can be reached.
Similarly, it is described low high low high to main oil gallery 7 and low high to branch's oil in the housing including being arranged on to oil duct
Road.The top that the low height is preferably laid in the housing to main oil gallery is extended from low speed end to speed end.The low Gao Xiangzhu
Oil duct provided with multiple with the low high outlets being connected to branch's oil duct one-to-one corresponding, wherein towards the exit of oil site
Be preferably provided with nozzle, it is described it is low it is high to main oil gallery via damping hole and the corresponding low height of the nozzle to branch's oil duct
Communicate, towards oil sump of the outlet through low speed end unloading port 8 Yu the speed end lubricating pump of the pump shaft of the speed end lubricating pump
Communicate.The exit normal of low speed end unloading port points to the pump shaft of the speed end lubricating pump.Low speed end unloading port with
The low height is preferably smaller than the low high stream to main oil gallery to the damping hole actual internal area sum of all nozzles on main oil gallery
Logical sectional area, again smaller than the actual internal area of the oil outlet of low speed end lubricating pump.The speed end unloading port and low speed end
The outlet of unloading port is preferably that vertical direction is set, when the swing arm is in orientation shown in Fig. 1, even if the speed end is unloaded
The outlet pressure of hole or low speed end unloading port is smaller or even without pressure, and fluid can also fall on low speed end lubricating pump naturally
Or on the pump shaft of speed end lubricating pump.
Using abovementioned technology, no matter which end of swing arm can guarantee that its each oil site is obtained preferably in high-order or low level
Lubrication.Certainly, the actual internal area of the damping hole of the speed end unloading port, low speed end unloading port and each nozzle
Certain value should be not less than, by the control of their own outlet oil pressure within the specific limits, for example, the speed end can be unloaded
The outlet oil pressure control of hole and low speed end unloading port is carried in 0.5-1.5Mpa, the outlet oil pressure of all nozzles is controlled in 1-
2Mpa。
Structural shape (2)：The height is to oil duct and low high to actual internal area uniformity or only depositing everywhere on oil duct
In gradual change type transition, each branch road actual internal area minimum value sum that the height leads to each oil site and pump shaft to oil duct is less than
The actual internal area of the oil outlet of the speed end lubricating pump, the low height leads to each branch road of each oil site and pump shaft to oil duct
Actual internal area minimum value sum is less than the actual internal area of the oil outlet of low speed end lubricating pump.
All oil sites of one axle group are generally to being applied to a height to branch's oil duct or a low height
To branch's oil duct.The inner side oil site of low speed end lubricating pump (or speed end lubricating pump) uses an independent height to branch
Oil duct (or low high to branch's oil duct).
For said structure pattern (1), the nozzle includes diplopore and damps nozzle 3 and single hole damping nozzle 4, for one
The height uses single hole to branch's oil duct or the low high situation to branch's oil duct one oil site of correspondence, the corresponding nozzle
Damp nozzle.When a height is to branch's oil duct or low high oil duct two oil sites of correspondence to branch, accordingly
The nozzle can damp nozzle using single hole, main oil gallery and respective branch that the damping hole of the nozzle is used to connecting where it
Lead to the common portion of the oil circuit of two oil sites on oil duct.In Fig. 7 b and Fig. 9 b illustrated embodiments, it is preferred to use diplopore is damped
Nozzle, two damping holes of the diplopore damping nozzle connect main oil gallery and respective branch oil where it independently of each other respectively
Lead to the different oil circuits of two oil sites on road.
The lubrication of the bearings at both ends of axle group shown in Fig. 7 b to being applied to a height to branch's oil duct, this just to point
Branch oil duct includes height to horizontal oilhole 23 and two height to vertical oilhole 21.Wherein, the height is to horizontal oilhole
It can set on the housing towards the downwardly projecting height of axle group into horizontal oilhole gusset 24, using the reinforcing plate structure, both
Intensity of the height to horizontal oilhole can be ensured, do not need large area to increase the thickness of housing upper again.
The lubrication of the bearings at both ends of axle group shown in Fig. 9 b is described low high to branch's oil duct, the low Gao Xiangfen to being applied to one
Branch oil duct includes one low high low high to vertical oilhole 71 to horizontal oilhole 73 and two.Wherein, it is described low high to horizontal oilhole
It can set on the housing towards the downwardly projecting low height of corresponding axle group into horizontal oilhole gusset 74.
The lubrication of the intermediate bearing of axle group shown in Fig. 8 a to being applied to a height to branch's oil duct, this just to point
Branch oil duct includes height to horizontal oilhole 23 and a height to vertical oilhole 21.The intermediate bearing of axle group shown in Figure 10 a
Lubrication it is described low high to branch's oil duct to being applied to one, this it is low it is high include to branch's oil duct it is one low high to vertical oilhole
71。
The height to the outlet on main oil gallery and it is described it is low it is high to the outlet on main oil gallery can be from it
The cavernous structure that the bottom of place main oil gallery is extended downwardly.
As shown in Fig. 8 a, 10a, 12, the matrix underpart of the single hole damping nozzle is shell portion 4114, and its damping hole has
One, can be made up of inclined hole 4111 and centre bore 4112, the upper end open of the damping hole in described matrix upper top with
Outer region, lower ending opening is in the bottom surface of the shell portion, and the mounting means of the single hole damping nozzle is：Exported where it
The top of cavernous structure be arranged to counterbore, the shell portion is tightly fitted in the counterbore, the top surface 4113 of described matrix
Fit and be resisted against on the bottom surface of the top surface of corresponding main oil gallery and the counterbore respectively with bottom surface；
As shown in Fig. 7 b, 9b, 11, the matrix of the diplopore damping nozzle is provided with upper shell portion 3116 and lower shell portion
3117, it is circumferential groove in its end portion 3114 between upper and lower shell portion.Its damping hole has two, and separate.Two damping holes
Upper end be opened on region beyond described matrix upper top, the lower ending opening of a damping hole is in the lower cylinder
The bottom surface of body section, the damping hole can be made up of long inclined hole 3111 and long centre bore 3112, the lower end of another damping hole
The groove inner surface (for example can be the upper wall surface and/or groove bottom of the circumferential groove in its end portion) of the circumferential groove in its end portion is opened on, is such as schemed
In side opening 3113.The mounting means of diplopore damping nozzle is：The lower end of the cavernous structure of outlet where it and one is laterally
Oilhole is communicated, and the horizontal oilhole is communicated with two vertical oilholes being disposed below, one of them vertical oilhole it is upper
Mouth and the opening are just right, and the top of the vertical oilhole is arranged to counterbore, and the upper shell portion tightly fits in the outlet
In cavernous structure, the lower shell portion is tightly fitted in the counterbore, and the circumferential groove in its end portion is communicated with the horizontal oilhole, institute
The top surface 3115 and bottom surface for stating matrix are fitted and are resisted against on the bottom surface of the top surface of corresponding main oil gallery and the counterbore respectively.
For the height to oil duct and the low high above two structural shape to oil duct, it is preferred to use structural shape (1),
Its height can set larger to main oil gallery and low height to the actual internal area of main oil gallery, be easy to processing, convenient to cool down,
The incidence of blocking is advantageously reduced, the reliability of swing arm is improved.
The axial of two ends supporting construction axle group is respectively arranged at two ends with end cap in the transmission system, as shown in Fig. 7,9, institute
State end cap to fix on the housing, the lateral surface of at least end cap of one end exposes to housing in two ends, and the lateral surface can
With concordant with the outer surfaces of the housing.The end cap is preferred to use following structure：The medial surface of the end cap is provided with axle
Footpath is respectively equipped with the annular flange of convex, the radially inner and outer periphery (can be the face of cylinder or circular conical surface) of the flange
To inner groove and radially outer ring groove, if the flange is provided with leading to that radially outer ring groove described in capable person and radially inner ring groove connect
Hole.The through hole is opened in the top of the flange, is preferably close to the top of the flange, so as to which fluid is drawn from the top down
Stream.The through hole can be radially extended, and be preferably the medial surface for from top to bottom pointing to corresponding end cap, or, the through hole
The medial surface of lower mouth and corresponding end cap fits, to cause inner side surface current of the fluid along the end cap after through hole outflow
Under, in order to which same end cap carries out heat exchange radiating.The height corresponding to the radially outer ring groove and corresponding axle group is to branch
Oil duct or low height are communicated to the joining distal ends of branch's oil duct, the respective end support shaft of the medial surface of the end cap towards corresponding axle group
The outer face held.Fluid is from the height to branch's oil duct or low height to branch's oil duct successively through radially outer ring groove, through hole and footpath
To inner groove, it is lubricated from the outer face of respective end spring bearing into bearing.It is not only real using above-mentioned end cover structure
Show the lubrication drainage of the bearings at both ends of two ends supporting construction axle group, and also enhance the cooling of fluid.Particularly wherein extremely
The lateral surface of few one end end cap exposes to the housing, advantageously in the heat exchange of air outside end cap and housing, therefore enters one
Step improves radiating effect.
By taking the 5th axle group shown in Fig. 7 as an example, the radially outer ring groove on rib side end cap 921 acts also as primary depositing groove
9211, impurity can be resided in the groove in oil when fluid flows through the groove from up to down, the through hole thereon be into oilhole 9213,
With rib side end cap medial surface 9214 is at an acute angle sets diagonally downward, incline direction is that the through hole from top to bottom points to the coal
The direction of wall side end cap medial surface, to keep fluid to be flowed down along rubbing surface of end cover, with end cap heat exchange fully, while fluid is miscellaneous
Matter is maintained in radially inner ring groove i.e. secondary deposition groove 9212 (referring to Fig. 7 a).Radially outer ring groove on mined out side end cap 922 fills
When primary depositing groove 9221, impurity can be resided in the groove in oil when fluid flows through the groove from up to down, the through hole thereon
To enter oilhole 9223, can with mined out side end cap medial surface 9224 is at an acute angle sets diagonally downward, incline direction be the through hole by
The up to lower direction for pointing to the mined out side end cap medial surface, to keep fluid to be flowed down along rubbing surface of end cover, with end cap heat exchange
Fully, while oil residue is maintained in radially inner ring groove i.e. secondary deposition groove 9222 (referring to Fig. 7 c).The two of 5th axle group
Hold end cap exposed.On the one hand the setting of dislodger can improve lubricant effect, and the work that on the other hand can improve swing arm can
By property.
By taking the 3rd axle group shown in Fig. 9 as an example, the combined type that rib side end cap 921 can be assembled for inside and outside end cap
End cap.Radially outer ring groove acts also as primary depositing groove 9211, is arranged on outer end cap.Radially inner ring groove acts also as secondary deposition groove
9212, it is arranged in inner end cap.The through hole is, into oilhole 9213, to be arranged in inner end cap, the medial surface 9214 with inner end cap
It is at an acute angle to set diagonally downward, or the medial surface of the lower mouth and corresponding end cap of the through hole fits.It is relative between inside and outside end cap
Periphery between leave gap, outer end cap is provided with some accessibke porosities radially extended, and accessibke porosity connects the radially outer ring groove
With the gap.Impurity can be resided in the groove in oil when fluid flows through the radially outer ring groove from up to down, and fluid is passed through successively
The accessibke porosity, gap, through hole, are flowed down along the medial surface of inner end cap, and sufficient heat exchange is carried out with inner end cap, while by fluid
Impurity is maintained in radially inner ring groove (referring to Fig. 9 a).Radially outer ring groove on mined out side end cap 922 serves as primary depositing groove
9221, impurity can be resided in the groove in oil when fluid flows through the groove from up to down, the through hole thereon be into oilhole 9223,
Can with mined out side end cap medial surface is at an acute angle sets diagonally downward, it is described mined out that incline direction is that the through hole is from top to bottom pointed to
The direction of side end cap medial surface, or the medial surface of the lower mouth and corresponding end cap of the through hole fit, to keep fluid along end
Lid medial surface is flowed down, and sufficient heat exchange is carried out with end cap, while oil residue is maintained at into radially inner ring groove i.e. secondary deposition
(referring to Fig. 9 c) in groove 9222.The rib side end cap of 3rd axle group is exposed end cap.Using combined type end cap, inside and outside end cap
Partial structurtes can be more flexible and changeable, the characteristics of to adapt to the structure of correspondence position on corresponding axle group end and housing.
As shown in Fig. 8,10, the central shaft of interlude supporting construction axle group is preferred to use following knot in the transmission system
Structure：The central shaft is provided with central blind hole, and as secondary deposition groove ZXZ1, the middle part of the central shaft and nearly root are respectively provided with
Radially outer ring groove is additionally provided with the radial direction oil hole communicated with the central blind hole, nearly root, the radially outer ring groove is as once sinking
Product groove ZXZ2, the radially outer ring groove and the height corresponding to corresponding axle group are to branch's oil duct or low high to branch's oil duct
Joining distal ends are communicated.The radial direction oil hole of nearly root is as oilhole ZXZ3 is entered, and it is opened in the radially outer ring to outward opening
In groove, two groups of the centre spring bearing that the interlude supporting construction axle group is opened in outward opening of the radial direction oil hole at middle part
Between installation site on the central shaft.Fluid successively through the radially outer ring groove, the radial direction oil hole of nearly root, in
Two groups of spring bearings in the middle of heart blind hole, the radial direction oil hole at middle part flow direction, in the process, the impurity in fluid can be successively
By depositing twice, it is respectively deposited in radially outer ring groove and central blind hole.
The two-way mutual lubricating system of rocker arm of coal mining machine is also preferably equipped with auxiliary coolant system, and the auxiliary coolant system can
Think following structural shape：
Structural shape (a)：For structural shape (1) the height to oil duct and low high to oil duct, set respectively and institute
Height is stated to main oil gallery and the low high cooler corresponding to main oil gallery, its institute is served as with the exothermic medium passage of the cooler
A part from the corresponding height to main oil gallery and the low high part to main oil gallery；For the institute of structural shape (2)
Height is stated to oil duct and low height to oil duct, is set respectively with the height to oil duct and the low high cooler corresponding to oil duct,
The height corresponding to it is served as with the exothermic medium passage of the cooler to the part of the trunk roads of oil duct and described
A part for the low high trunk roads to oil duct.
Structural shape (b)：For structural shape (1) the height to oil duct and it is low height to oil duct, using supplement heat rejecter
Structure 9, the water channel extended including at least two tops for being laid in the housing from speed end to low speed end, described in two
Water channel and the height are interval with some (operating) water nozzles to main oil gallery and low high to main oil gallery spaced arrangement on the water channel
914, one end of the water channel is communicated with water hole 911, and other end closing, the water hole is arranged in the housing, is opened on institute
State on the outer surface of housing.Cooling water enters two water channels behind the water hole, then is sprayed by each water on the water channel
Mouth sprays, and current drive the height to be cooled down to main oil gallery and low high strengthen to main oil gallery, preferably improve radiating effect.
The water hole can be communicated as the water channel of the water channel with one end of the close speed end of the water channel.
When the height uses structural shape (1) to oil duct and low height to oil duct, the auxiliary coolant system can be adopted
With structural shape (a) and/or structural shape (b), when the height uses structural shape (2) to oil duct and low height to oil duct,
The auxiliary coolant system can use structural shape (a).In addition, for the swing arm of high-power operation, being suitable for by setting
The auxiliary coolant system of structural shape (a) is obviously improved cooling effect.
The present invention also discloses a kind of rocker arm of coal mining machine, its lubricating system using it is above-mentioned any one it is described it is two-way mutually
Lubricating system.In Fig. 1, the rocker arm of coal mining machine shown in 2, first axle group Z1 that the transmission system includes being connected successively, the
Two axle group Z2, the 3rd axle group Z3, the 4th axle group Z4, the 5th axle group Z5, the 6th axle group Z6, the 7th axle group Z7 and the 8th axle group Z8,
The first axle group is driven by motor, and the first axle group is speed end axle group, and the 8th axle group is low speed end axle group.It is described
5th axle group, the 6th axle group, the oil outlet phase of the 7th axle group and the 8th respective oil site of axle group and the speed end lubricating pump
Logical, i.e. the lubrication of the 5th axle group, the 6th axle group, the 7th axle group and the 8th axle group is completed by the speed end lubricating pump, and described the
One axle group, the second axle group, the 3rd axle group and the 4th respective oil site of axle group are communicated with the oil outlet of low speed end lubricating pump,
I.e. the lubrication of first axle group, the second axle group, the 3rd axle group and the 4th axle group is completed by low speed end lubricating pump.
The height is to main oil gallery and described low high to rib side and mined out side of the main oil gallery respectively close to the rocking arm, phase
Ying Di, the water channel can include rib side water channel 912 and mined out side water channel 913, main oil gallery and water channel interval setting.The height
It is low to main oil gallery and the low height be preferably provided with to main oil gallery it is L-shaped, before big portion extend straight, and in end to offside
Bending, can so shorten the distance of oil site on the inside of from main oil gallery to pump shaft and lubricating pump, therefore can simplify corresponding oil
Line structure.For example in Fig. 5,6 corresponding oil circuit is directly communicated only with vertical oilhole with corresponding main oil gallery.
The height to main oil gallery (or described low high to main oil gallery) can be the housing top surface open up height to
Oil groove 22 (or low high to oil groove 72), then be made in the top fixing oil slot welding plate closing notch of notch.In this case,
The top surface of the matrix of the nozzle is then fitted and is resisted against on the bottom surface of corresponding oil groove welding plate.
The second axle group, the 4th axle group and the 7th axle group are interlude supporting construction axle group, and structure is similar, accordingly
Lubricant passage way is referred to Fig. 8 and 10.The first axle group, the 3rd axle group, the 5th axle group, the 6th axle group and the 8th axle group are two
Supporting construction axle group is held, structure is similar, and corresponding lubricant passage way is referred to Fig. 7 and 9.The height is to leading to institute on main oil gallery
The exit for stating the oil site of the inner side of the 7th axle group and low speed end lubricating pump sets the single hole damping nozzle, is respectively
41 and 42, towards the exit of the oil site of the 5th axle group, the 6th axle group and the 8th axle group, the diplopore damping spray is set
Mouth, respectively 31,32 and 33.It is described low high to lead to the second axle group, the 4th axle group and the speed end lubricating pump on main oil gallery
The exit of oil site of inner side single hole damping nozzle is set, be 44,43 and 45 respectively, towards first axle group and the 3rd
The exit of the oil site of axle group sets the diplopore damping nozzle, is 35 and 34 respectively.
As shown in Figure 5,6, the two ends of the pump shaft of the speed end lubricating pump and low speed end lubricating pump are by bearings,
Interior end bearing 13 and 63 is the inner side oil site of associated lubrication pump, and outer end bearings 11 and 61 lubricate for the outside of associated lubrication pump
Point.On the housing, outer end bearings are supported on pump end cap inner bearings, and the pump end cap is fixed on the housing
On.The pump shaft 12 and 62 is helical axis.The cylinder for being surrounded setting on the housing close to the part pump shaft of outer end bearings
In cylindrical chamber, the part pump shaft close to interior end bearing is exposed in the oil sump, and the oil outlet 15 and 65 of the lubricating pump can
To be arranged in the housing, the upper end of the oil outlet is communicated with corresponding main oil gallery, lower end and the cylindrical tube shape chamber
Communicate and close to the outer end bearings.The fuel-displaced low speed end lubricating pump of being sprayed to after speed end unloading port of speed end lubricating pump
Pump shaft, the pump shaft of low speed end lubricating pump rotarily drives oil lubrication low speed end lubricating pump outer end bearings, while also passing through low speed end
The oil outlet of lubricating pump is pumped out, and forms the fuel-displaced of low speed end lubricating pump.Similarly, the fuel-displaced process low speed end of low speed end lubricating pump is unloaded
The pump shaft that speed end lubricating pump is sprayed to behind hole is carried, the pump shaft of speed end lubricating pump is rotarily driven outside oil lubrication speed end lubricating pump
End bearing, while also being pumped out by the oil outlet of speed end lubricating pump, forms the fuel-displaced of speed end lubricating pump.
Claims (10)
1. a kind of two-way mutual lubricating system of rocker arm of coal mining machine, it is characterised in that：Provided with speed end lubricating pump and low speed end lubricating pump,
The speed end lubricating pump delivers to fluid to oil duct by height on several axles close to low speed end in the transmission system of rocking arm
The inner side oil site of the respective oil site of group and low speed end lubricating pump and it is ejected into the pump shaft of low speed end lubricating pump
On, if fluid is delivered to remaining close speed end in the transmission system by low speed end lubricating pump by low height to oil duct
Do the inner side oil site of a respective oil site of axle group and the speed end lubricating pump and be ejected into the speed end lubricating pump
Pump shaft on, the gear that the speed end lubricating pump and low speed end lubricating pump are each fixedly mounted on pump shaft respectively with the transmission
Speed end axle group gear and low speed end axle group the gear engagement of system.
2. the two-way mutual lubricating system of rocker arm of coal mining machine as claimed in claim 1, it is characterised in that：The height is to oil duct and low
It is high to oil duct be any one following structural shape：Structural shape (1) height includes being arranged on the rocking arm to oil duct
Height in housing is to main oil gallery and height to branch's oil duct, and the height is laid in the top of the housing by height to main oil gallery
Fast end extends to low speed end, and the height is connected to main oil gallery provided with multiple corresponded with the height to branch's oil duct
Outlet, wherein be provided with nozzle towards the exit of oil site, the height is to damping hole of the main oil gallery via the nozzle
Communicated with the corresponding height to branch's oil duct, towards low speed end lubricating pump pump shaft outlet through speed end unloading port
Communicated with the oil sump of low speed end lubricating pump, the exit normal of the speed end unloading port points to low speed end lubricating pump
Pump shaft, the speed end unloading port is less than institute with the height to the damping hole actual internal area sum of all nozzles on main oil gallery
Actual internal area of the height to main oil gallery is stated, again smaller than the actual internal area of the oil outlet of the speed end lubricating pump；
The low height includes being arranged on low high to main oil gallery and low high to branch's oil duct in the housing, the low height to oil duct
The top for being laid in the housing to main oil gallery is extended from low speed end to speed end, it is described it is low it is high to main oil gallery provided with it is multiple with
The low high outlet being connected to branch's oil duct one-to-one corresponding, wherein the exit of oil site is provided with nozzle, it is described
Low height is communicated via the damping hole of the nozzle to main oil gallery with the corresponding low height to branch's oil duct, towards the speed end
The outlet of the pump shaft of lubricating pump is communicated through low speed end unloading port with the oil sump of the speed end lubricating pump, low speed end unloading port
Exit normal point to the pump shaft of the speed end lubricating pump, low speed end unloading port low high owns with described on main oil gallery
The damping hole actual internal area sum of nozzle is less than the low high actual internal area to main oil gallery, again smaller than low speed end profit
The actual internal area of the oil outlet of sliding pump；
Structural shape (2)：The height is to oil duct and low high to actual internal area uniformity or only existing gradually everywhere on oil duct
Variant transition, the height leads to each branch road actual internal area minimum value sum of each oil site and pump shaft less than described to oil duct
The actual internal area of the oil outlet of speed end lubricating pump, the low high each branch road for leading to each oil site and pump shaft to oil duct circulates
Sectional area minimum value sum is less than the actual internal area of the oil outlet of low speed end lubricating pump.
3. the two-way mutual lubricating system of rocker arm of coal mining machine as claimed in claim 2, it is characterised in that：The nozzle hinders including diplopore
Buddhist nun's nozzle and single hole damping nozzle, an oil site is corresponded to for a height to branch's oil duct or low height to branch's oil duct
Situation, the corresponding nozzle damps nozzle using single hole, for a height to branch's oil duct or low high to branch
The situation of oil duct two oil sites of correspondence, the corresponding nozzle damps nozzle, the two of the diplopore damping nozzle using diplopore
Individual damping hole connects the difference for leading to two oil sites on main oil gallery and respective branch oil duct where it independently of each other respectively
Oil circuit.
4. the two-way mutual lubricating system of rocker arm of coal mining machine as claimed in claim 3, it is characterised in that：The height is on main oil gallery
The outlet and it is described it is low it is high to the outlet on main oil gallery be from the bottom of main oil gallery where it extend downwardly it is poroid
Structure；
The matrix underpart of the single hole damping nozzle is shell portion, and its damping hole has one, the upper end open of the damping hole
Region beyond described matrix upper top, lower ending opening damps nozzle in the bottom surface of the shell portion, the single hole
Mounting means is：Top of cavernous structure of outlet is arranged to counterbore where it, and the shell portion tightly fits in the counterbore
In, the top surface of described matrix and bottom surface are fitted and are resisted against on the bottom surface of the top surface of corresponding main oil gallery and the counterbore respectively；
It is circumferential that the matrix of the diplopore damping nozzle, which is provided between upper shell portion and lower shell portion, upper and lower shell portion,
Annular groove, its damping hole has two, and separate, the upper ends of two damping holes be opened on described matrix upper top with
Outer region, the lower ending opening of a damping hole is under the bottom surface of the lower shell portion, another described damping hole
End opening is in the groove inner surface of the circumferential groove in its end portion, and the mounting means of the diplopore damping nozzle is：Outlet is poroid where it
The lower end of structure is communicated with a horizontal oilhole, and the horizontal oilhole is communicated with two vertical oilholes being disposed below, wherein one
The individual vertical oilhole it is suitable for reading with it is described opening it is just right, the top of the vertical oilhole is arranged to counterbore, the upper shell portion
In the cavernous structure for tightly fitting in the outlet, the lower shell portion is tightly fitted in the counterbore, the circumferential groove in its end portion with
The horizontal oilhole is communicated, and the top surface of described matrix and bottom surface are fitted and be resisted against the top surface of corresponding main oil gallery and described heavy respectively
On the bottom surface in hole.
5. the two-way mutual lubricating system of rocker arm of coal mining machine as described in claim 2,3 or 4, it is characterised in that：The transmission system
In each axle group also further use following structure：
(1) the axial of two ends supporting construction axle group is respectively arranged at two ends with end cap in the transmission system, and the end cap is fixed on
On the housing, the lateral surface of at least end cap of one end exposes to the housing in two ends, and the medial surface of the end cap is set
Having be respectively equipped with radially inner ring groove and radially outer ring on the annular flange of axial evagination, the radially inner and outer periphery of the flange
Groove, if the top of the flange is provided with the through hole that radially outer ring groove described in capable person and radially inner ring groove connect, the footpath is outside
Annular groove is communicated with the height corresponding to corresponding axle group to branch's oil duct or low height to the joining distal ends of branch's oil duct, the end
The medial surface of lid is towards the outer face of the respective end spring bearing of corresponding axle group；
(2) central shaft of interlude supporting construction axle group is provided with central blind hole, the central shaft in the transmission system
Portion and nearly root, which are respectively provided with the radial direction oil hole communicated with the central blind hole, nearly root, is additionally provided with radially outer ring groove, the footpath
Communicated to outer groove with the height corresponding to corresponding axle group to branch's oil duct or low height to the joining distal ends of branch's oil duct, closely
The radial direction oil hole of root is opened in outward opening in the radially outer ring groove, the radial direction oil hole at middle part to external-open
Mouth is opened between installation site of two groups of the centre spring bearing of the interlude supporting construction axle group on the central shaft.
6. the two-way mutual lubricating system of rocker arm of coal mining machine as claimed in claim 5, it is characterised in that：It is described logical on the flange
The medial surface of corresponding end cap is from top to bottom pointed in hole, or, the through hole is radially extended, or, the lower mouth of the through hole with
The medial surface of corresponding end cap fits.
7. the two-way mutual lubricating system of rocker arm of coal mining machine as described in claim 2,3,4,5 or 6, it is characterised in that：It is additionally provided with auxiliary
Cooling system is helped, the auxiliary coolant system includes following structural shape：
Structural shape (a)：For structural shape (1) the height to oil duct and low high to oil duct, set and the height respectively
It is low to main oil gallery and the low high cooler corresponding to main oil gallery, served as with the exothermic medium passage of the cooler corresponding to it
A part from the height to main oil gallery and the low high part to main oil gallery；For the height of structural shape (2)
It is low to oil duct and low high to oil duct, set respectively with the height to oil duct and the low high cooler corresponding to oil duct, use institute
The exothermic medium passage for stating cooler serves as a part from the height corresponding to it to the trunk roads of oil duct and the low height
To a part for the trunk roads of oil duct；
Structural shape (b)：For structural shape (1) the height to oil duct and low high to oil duct, provided with least two layings
The water channel extended on the top of the housing from speed end to low speed end, two water channels and the height are to main oil gallery and low
It is high to be interval with some (operating) water nozzles on the water channel, one end of the water channel is communicated with water hole to main oil gallery spaced arrangement,
The other end is closed, and the water hole is arranged in the housing, on the outer surface for being opened on the housing；
When the height uses structural shape (1) to oil duct and low height to oil duct, the auxiliary coolant system uses structural type
Formula (a) and/or structural shape (b), when the height uses structural shape (2) to oil duct and low height to oil duct, the auxiliary
Cooling system uses structural shape (a).
8. a kind of rocker arm of coal mining machine, it is characterised in that：Its lubricating system uses any one in claim 1-7 described two-way mutual
Lubricating system, the transmission system is provided with the first axle group being connected successively, the second axle group, the 3rd axle group, the 4th axle group, the
Five axle groups, the 6th axle group, the 7th axle group and the 8th axle group, the first axle group are driven by motor, and the first axle group is at a high speed
Axle group is held, the 8th axle group is low speed end axle group, and the 5th axle group, the 6th axle group, the 7th axle group and the 8th axle group are each
Oil site communicated with the oil outlet of the speed end lubricating pump, the first axle group, the second axle group, the 3rd axle group and the 4th axle
The respective oil site of group is communicated with the oil outlet of low speed end lubricating pump.
9. rocker arm of coal mining machine as claimed in claim 8, it is characterised in that：The height is to main oil gallery and described low high to main oil
Road is respectively close to the rib side and mined out side of the rocking arm, and the second axle group, the 4th axle group and the 7th axle group are interlude branch
Support structure axle group, the first axle group, the 3rd axle group, the 5th axle group, the 6th axle group and the 8th axle group are two ends supporting construction axle
Group, the height is to the exit of the oil site for the inner side for leading to the 7th axle group and low speed end lubricating pump on main oil gallery
The single hole damping nozzle is set, and the exit towards the oil site of the 5th axle group, the 6th axle group and the 8th axle group is set
The diplopore damps nozzle, described low high to lead to the second axle group, the 4th axle group and the speed end lubricating pump on main oil gallery
The exit of the oil site of inner side sets the single hole damping nozzle, towards the outlet of first axle group and the oil site of the 3rd axle group
Place sets the diplopore damping nozzle.
10. rocker arm of coal mining machine as claimed in claim 9, it is characterised in that：The speed end lubricating pump and low speed end lubricating pump
Pump shaft two ends by bearings, interior end bearing is the inner side oil site of associated lubrication pump, and outer end bearings are corresponding profit
The outside oil site of sliding pump, the pump shaft is helical axis, is surrounded setting on the housing close to the part pump shaft of outer end bearings
In the cylindrical tube shape chamber put, the part pump shaft close to interior end bearing is exposed in the oil sump, the oil outlet of the lubricating pump
It is arranged in the housing, the upper end of the oil outlet is communicated with corresponding main oil gallery, lower end and the cylindrical tube shape chamber phase
The logical and close outer end bearings.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306119.5A CN106958734B (en) | 2017-05-04 | 2017-05-04 | The two-way mutual lubricating system of rocker arm of coal mining machine and rocker arm of coal mining machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306119.5A CN106958734B (en) | 2017-05-04 | 2017-05-04 | The two-way mutual lubricating system of rocker arm of coal mining machine and rocker arm of coal mining machine |
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| CN106958734A true CN106958734A (en) | 2017-07-18 |
| CN106958734B CN106958734B (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710306119.5A Active CN106958734B (en) | 2017-05-04 | 2017-05-04 | The two-way mutual lubricating system of rocker arm of coal mining machine and rocker arm of coal mining machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259930A (en) * | 2019-07-18 | 2019-09-20 | 天地科技股份有限公司上海分公司 | The efficient enforced lubricating system of coalcutter with circulation lubricating function |
| CN110259931A (en) * | 2019-07-18 | 2019-09-20 | 天地科技股份有限公司上海分公司 | Rocker arm of coal mining machine oil sump cooling device |
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| US5099932A (en) * | 1990-12-21 | 1992-03-31 | Cummins Engine Company, Inc. | Rock drill bit lubricant circulating system |
| CN102278459A (en) * | 2010-06-13 | 2011-12-14 | 天地上海采掘装备科技有限公司 | Rocker arm lubricating device of coal mining machine |
| CN102537293A (en) * | 2011-12-13 | 2012-07-04 | 安徽山河矿业装备股份有限公司 | Lubricating device of rocker arm reduction box of coal mining machine |
| CN103486237A (en) * | 2013-10-11 | 2014-01-01 | 江苏中机矿山设备有限公司 | Forced lubricating device of rocker gear box of coal mining machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5099932A (en) * | 1990-12-21 | 1992-03-31 | Cummins Engine Company, Inc. | Rock drill bit lubricant circulating system |
| CN102278459A (en) * | 2010-06-13 | 2011-12-14 | 天地上海采掘装备科技有限公司 | Rocker arm lubricating device of coal mining machine |
| CN102537293A (en) * | 2011-12-13 | 2012-07-04 | 安徽山河矿业装备股份有限公司 | Lubricating device of rocker arm reduction box of coal mining machine |
| CN103486237A (en) * | 2013-10-11 | 2014-01-01 | 江苏中机矿山设备有限公司 | Forced lubricating device of rocker gear box of coal mining machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259930A (en) * | 2019-07-18 | 2019-09-20 | 天地科技股份有限公司上海分公司 | The efficient enforced lubricating system of coalcutter with circulation lubricating function |
| CN110259931A (en) * | 2019-07-18 | 2019-09-20 | 天地科技股份有限公司上海分公司 | Rocker arm of coal mining machine oil sump cooling device |
| CN110259931B (en) * | 2019-07-18 | 2024-04-05 | 天地科技股份有限公司上海分公司 | Rocker arm oil pool cooling device of coal mining machine |
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| Publication number | Publication date |
|---|---|
| CN106958734B (en) | 2019-03-15 |
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