CN106958734B

CN106958734B - The two-way mutual lubricating system of rocker arm of coal mining machine and rocker arm of coal mining machine

Info

Publication number: CN106958734B
Application number: CN201710306119.5A
Authority: CN
Inventors: 章立强; 王振乾; 董超; 钱立全; 胡滔; 刘耀海; 胡璟; 宋振; 周常飞; 郭岱; 乐南更; 刘凯; 刘天宝
Original assignee: Tiandi Shanghai Mining Equipment Technology Co Ltd; Tiandi Science and Technology Co Ltd Shanghai Branch
Current assignee: Tiandi Shanghai Mining Equipment Technology Co Ltd; Tiandi Science and Technology Co Ltd Shanghai Branch
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2019-03-15
Anticipated expiration: 2037-05-04
Also published as: CN106958734A

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 equipped with high, low speed end lubricating pump, speed end lubricating pump oil outlet is communicated to oil duct with the oil site of several axis groups at low speed end close in low speed end lubricating pump oil sump, inside oil site and transmission system by height, low speed end lubricating pump oil outlet by it is low it is high communicated to oil duct with the oil site of speed end lubricating pump oil sump, inside oil site and each axis group of remainder, lubricating pump its gear respectively on pump shaft in high, low speed end is engaged with high, low speed end axis 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 axis groups, and the oil outlet of low speed end lubricating pump is communicated with the oil site of the first, second, third and fourth axis group.The present invention can solve the problem for stopping the high-order lubricating pump occurred and each axis group bearing lubrication hardly possible after coal mining captain's rocker arm wide swing angle for a long time.

Description

The two-way mutual lubricating system of rocker arm of coal mining machine and rocker arm of coal mining machine

Technical field

The present invention relates to a kind of rocker arm of coal mining machine lubricating systems, and especially no matter rocker arm of coal mining machine is in upper pendulum or the bottom State, the high-end of rocker arm can mutually provide the system of lubrication between low side, belong to coalcutter technical field.

Background technique

Needs are exploited to meet, the Capability Requirement that coalcutter adapts to wide scope seam mining just steps up, and coalcutter shakes The hunting range of arm design is also increasing, but one larger problem of bring is exactly, 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 rocker arm, and especially modernization greatly enhances Rocker arm more cannot get good lubrication when the long period exploitation of degree working face and faults frequent, some face in steep thick coal seam are exploited Even more bring the lubrication problem of rocker arm.

Although also taking a large amount of measure for the lubrication problem of rocker arm in the industry: some installs lubricating pump in high speed low side Lubrication to the high-end realization of upper pendulum rocker lubrication, but when the setting is not able to satisfy rocker arm bottom state；Some is in high inclination-angle work Make the lubrication needs that can not meet rocker arm when the lower end installation lubricating pump in face but wide scope exploitation；Some is all pacified at rocker arm both ends Lubricating pump is filled, but is easy long-time oil starvation in high-end lubricating pump, therefore the service life is very low, to seriously affect the entirety of rocker arm Reliability.It is under wide scope seam mining work condition environment, above-mentioned a large amount of technical measures not can be well solved coalcutter The lubrication problem of rocker arm, it is difficult to adapt to the development of coalcutter modernization exploitation.

Summary of the invention

For the above problem for solving the prior art, the present invention provides a kind of two-way mutual lubricating system of rocker arm of coal mining machine and adopt Coal machine rocker arm can solve the high end position lubricating pump for stopping appearance after coal mining captain's rocker arm wide swing angle for a long time and each The lubrication problem of axis group bearing improves the functional reliability of rocker arm of coal mining machine and the adaptability to wide scope seam mining.

Main technical schemes of the invention have:

A kind of two-way mutual lubricating system of rocker arm of coal mining machine is equipped with speed end lubricating pump and low speed end lubricating pump, the high speed Oil liquid is sent into the transmission system of rocker arm several axis groups close to low speed end respective by end lubricating pump by height to oil duct It the inside oil site of oil site and low speed end lubricating pump and 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 axis groups that oil liquid is sent into the transmission system to remaining close speed end to oil duct It the inside oil site of respective oil site and the speed end lubricating pump and is ejected on the pump shaft of the speed end lubricating pump, The gear that the speed end lubricating pump and low speed end lubricating pump are respectively fixedly mounted on the pump shaft height with the transmission system respectively Fast end axis group gear and the engagement of low speed end axis group gear.

The height can be for any one following structural shape to oil duct to oil duct and low height: structural shape (1) is described Height to oil duct include height in the shell that the rocker arm is set to main oil gallery and height to branch's oil duct, the height to The top that main oil gallery is preferably laid in the shell is extended from speed end to low speed end, and the height is equipped with multiple to main oil gallery The outlet being connected is corresponded to branch's oil duct with the height, wherein the exit for leading to oil site is provided with nozzle, institute It states height to communicate with the corresponding height to branch's oil duct to main oil gallery via the damping hole of the nozzle, leads to the low speed The outlet of the pump shaft of lubricating pump is held to communicate through speed end unloading port with the oil sump of low speed end lubricating pump, the speed end unloading The exit normal in hole is directed toward the pump shaft of low speed end lubricating pump, the speed end unloading port and height institute on main oil gallery There is the sum of damping hole actual internal area of nozzle to be 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 it is low it is high to oil duct include it is disposed in the housing low high to main oil gallery and low height is to branch's oil duct, it is described The top that low height is preferably laid in the shell to main oil gallery is extended from low speed end to speed end, and the low height is set on main oil gallery There are multiple outlets being connected with the low height to branch's oil duct one-to-one correspondence, wherein the exit for leading to oil site is provided with spray Mouth, the low height are communicated with the corresponding low height to branch's oil duct to main oil gallery via the damping hole of the nozzle, lead to 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 The exit normal of end unloading port is directed toward the pump shaft of the speed end lubricating pump, low speed end unloading port and the low height to main oil The sum of damping hole actual internal area 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 to oil duct and it is low height on oil duct everywhere actual internal area uniformity or there is only Gradual change type transition, the height lead to the sum of each branch actual internal area minimum value of each oil site and pump shaft to oil duct 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 stream of each oil site and pump shaft to oil duct The sum of logical sectional area minimum value is less than the actual internal area of the oil outlet of low speed end lubricating pump.

The nozzle includes diplopore damping nozzle and single hole damping nozzle, and the height described for one is to branch's oil duct or low The case where height corresponds to an oil site to branch's oil duct, the corresponding nozzle damps nozzle using single hole, described in one Height is damped to branch's oil duct or low high the case where corresponding to two oil sites to branch's oil duct, the corresponding nozzle using diplopore Nozzle, two damping holes of the diplopore damping nozzle are connected to 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 outlet and the low high outlet to main oil gallery on of the height on main oil gallery are preferably from it The cavernous structure that the bottom of place main oil gallery extends downwardly；

The matrix underpart of the single hole damping nozzle is shell portion, and damping hole has one, the upper end of the damping hole It is opened on the region other than described matrix upper top, lower ending opening is in the bottom surface of the shell portion, the single hole damping spray The top of the cavernous structure exported where mouth is arranged to counterbore, and the shell portion tightly fits in the counterbore, described matrix Top and bottom be bonded and be resisted against on the top surface of corresponding main oil gallery and the bottom surface of the counterbore respectively；

The matrix of the diplopore damping nozzle is equipped with upper shell portion and lower shell portion, is between upper and lower shell portion Circumferential groove in its end portion, there are two damping holes, and mutually indepedent, and the upper end of two damping holes is opened on described matrix top top Region other than 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 slot inner surface of the circumferential groove in its end portion, the lower end of the cavernous structure exported where the diplopore damping nozzle with One lateral oilhole communicates, and the transverse direction oilhole is communicated with two vertical oilholes being disposed below, one of them described vertical oil The suitable for reading and opening face in hole, the top of the vertical oilhole are 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 lateral oilhole It communicates, the top and bottom of described matrix are bonded respectively and are resisted against on the top surface of corresponding main oil gallery and the bottom surface of the counterbore.

Each axis group in the transmission system can also be further using such as flowering structure:

(1) the axial both ends of both ends support construction axis group are respectively equipped with end cap in the transmission system, and the end cap is solid Determine on the housing, the lateral surface of at least end cap of one end exposes to the shell, the inside of the end cap in both ends Face is equipped with the annular flange of axial evagination, is respectively equipped with radially inner ring slot and radial direction on the radially inner and outer periphery of the flange Outer groove, if the top of the flange is equipped with the through-hole that radially outer ring slot and radially inner ring slot described in capable person connect, the diameter It is communicated to outer groove with the height corresponding to corresponding axis group to branch's oil duct or low height to the joining distal ends of branch's oil duct, institute State the medial surface of end cap towards corresponding axis group respective end spring bearing outer end face；

(2) central axis of interlude support construction axis group is equipped with central blind hole, the central axis in the transmission system Middle part and nearly root be respectively provided with the radial direction oil hole communicated with the central blind hole, radially outer ring slot, institute are additionally provided on nearly root Radially outer ring slot and the height corresponding to corresponding axis 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 provided in the radially outer ring slot outward opening, the radial direction oil hole at middle part Installation site of two groups of the centre spring bearing of the interlude support construction axis group on the central axis is provided with to outward opening Between.

The through-hole on the flange can from top to bottom be directed toward the medial surface of corresponding end cap, alternatively, the through-hole edge It radially extends, alternatively, 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 To include following structural shape:

Structural shape (a): for structural shape (1) the height to oil duct and low height to oil duct, be respectively set and institute Height is stated to main oil gallery and low height to the corresponding cooler of main oil gallery, serves as its institute with the exothermic medium channel of the cooler The a part and described low high a part to main oil gallery of the corresponding height to main oil gallery；For the institute of structural shape (2) Height is stated to oil duct and low height to oil duct, is respectively set with the height to oil duct and low high to the corresponding cooler of oil duct, With the exothermic medium channel of the cooler serve as it corresponding to the height to a part of trunk roads of oil duct and described A part of 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 In the water channel that the top of the shell extends from speed end to low speed end, two water channels and the height are to main oil gallery and low Height is spaced apart from each other arrangement to main oil gallery, and several (operating) water nozzles are equipped at intervals on the water channel, and one end of the water channel is communicated with water hole, Other end closing, the water hole are arranged in the shell, are opened on the outer surface of the shell；

When the height uses structural shape (1) to oil duct to oil duct and low height, 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 to oil duct and low height Auxiliary coolant system uses structural shape (a).

A kind of rocker arm of coal mining machine, lubricating system is using two-way mutual lubricating system described in any one of the above, the transmission System can be equipped with first axle group, the second axis group, the third axis group, the 4th axis group, the 5th axis group, the 6th axis being successively sequentially connected Group, the 7th axis group and the 8th axis group, the first axle group are driven by motor, and the first axle group is speed end axis group, and described the Eight axis groups be low speed end axis group, the 5th axis group, the 6th axis group, the 7th axis group and the 8th respective oil site of axis group with it is described The oil outlet of speed end lubricating pump communicates, the first axle group, the second axis group, third axis group and the 4th respective oil site of axis group It is communicated with the oil outlet of low speed end lubricating pump.

The height is preferably the coal wall side respectively close to the rocker arm to main oil gallery and adopts to main oil gallery and the low height Empty side, the second axis group, the 4th axis group and the 7th axis group are interlude support construction axis group, the first axle group, third axis Group, the 5th axis group, the 6th axis group and the 8th axis group are both ends support construction axis group, and the height leads to described the on main oil gallery The exit of the oil site of the inside of seven axis groups and low speed end lubricating pump is arranged the single hole and damps nozzle, leads to described the The exit of the oil site of five axis groups, the 6th axis group and the 8th axis group is arranged the diplopore and damps nozzle, described low high to main oil The single hole is arranged in the exit of oil site on road towards the inside of the second axis group, the 4th axis group and the speed end lubricating pump Nozzle is damped, the diplopore is set towards the exit of the oil site of first axle group and third axis group and damps nozzle.

The both ends of the pump shaft of the speed end lubricating pump and low speed end lubricating pump pass through bearing support, and interior end bearing is phase The inside 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 The part pump shaft of end bearing is surrounded in the cylindrical tube shape chamber being arranged on the housing, close to the part pump shaft of interior end bearing Be exposed in the oil sump, the oil outlet of the lubricating pump is set in the shell, the upper end of the oil outlet with it is corresponding Main oil gallery communicates, and lower end communicates with the cylindrical tube shape chamber and close to the outer end bearings.

The beneficial effects of the present invention are:

Two-way mutual lubricating system of the invention realizes no matter which end at rocker arm both ends is in high-order or low level, rocker arm two End lubricating pump can mutually be lubricated, while also assure the lubrication of each axis group bearing in rocker arm transmission system both ends, greatly Ground improves rocker arm of coal mining machine to the adaptability of wide scope seam mining.

Due to being provided with auxiliary coolant system, the fortified water to height to oil duct with low height to the oil liquid inside oil duct is realized It is cold, the fever of rocker arm is significantly reduced, the reliability of rocker arm is improved.

By the way that the structures such as specific radially outer ring slot, radially inner ring slot and through-hole are arranged on the end cap of axis group, it is not only Enter effective water conservancy diversion of oil site to oil liquid, the chance for also making full use of end cap to contact with oil liquid further enhances heat dissipation, special Not for exposed end cap, by the way that the position and direction of the through-hole are arranged, take full advantage of it is air-cooled, to further improve The heat-sinking capability of rocker arm.The present invention uses a nested structure, obtains the dual function system of two-way mutual lubrication and supplement heat rejecter.

By the way that primary depositing slot and secondary deposition slot structure are arranged on the end cap of axis group, central axis, promote in oil liquid The deposition of impurity cleans lubrication oil liquid more, not only improves lubricant effect, further improves the reliable operation of rocker arm Property.

The present invention solve the high-order lubricating pump for stopping appearance after coal mining captain's rocker arm wide swing angle for a long time and The lubrication problem of each axis group bearing, while the heat-sinking capability of swing arm is also improved, significantly improve 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 coalcutter with more aobvious Write effect.

Detailed description of the invention

Fig. 1 a is the outline structural diagram of one embodiment of rocker arm of coal mining machine of the invention；

Fig. 1 b is the top view of Fig. 1 a；

Fig. 2 is the lubricating pump and transmission system cross-sectional view of rocker arm of coal mining machine of the 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 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 invention；

Fig. 5 is the speed end lubricating pump A-A cross-sectional view of the two-way mutual lubricating system of rocker arm of coal mining machine of the invention；

Fig. 6 is the low speed end lubricating pump B-B cross-sectional view of the two-way mutual lubricating system of rocker arm of coal mining machine of the invention；

Fig. 7 a is the coal wall side lubricant passage way schematic diagram of the 5th axis group of rocker arm of coal mining machine of the invention；

Fig. 7 b is the C-C cross-sectional view of the 5th axis group of rocker arm of coal mining machine of the invention；

Fig. 7 c is the mined out side lubricant passage way schematic diagram of the 5th axis group of rocker arm of coal mining machine of the invention；

Fig. 8 a is the D-D cross-sectional view of the 7th axis group of rocker arm of coal mining machine of the invention；

Fig. 8 b is the central axis lubricant passage way schematic diagram of the 7th axis group of rocker arm of coal mining machine of the invention；

Fig. 9 a is the coal wall side lubricant passage way schematic diagram of the third axis group of rocker arm of coal mining machine of the invention；

Fig. 9 b is the E-E cross-sectional view of the third axis group of rocker arm of coal mining machine of the invention；

Fig. 9 c is the mined out side lubricant passage way schematic diagram of the third axis group of rocker arm of coal mining machine of the invention；

Figure 10 a is the F-F cross-sectional view of the 4th axis group of rocker arm of coal mining machine of the invention；

Figure 10 b is the central axis lubricant passage way schematic diagram of the 4th axis group of rocker arm of coal mining machine of the invention；

Figure 11 is the cross-sectional view of one embodiment that the diplopore of the invention damps nozzle；

Figure 12 is the cross-sectional view of one embodiment that the single hole of the invention damps nozzle.

Appended drawing reference:

Z1. first axle group；Z2. the second axis group；Z3. third axis group；Z4. the 4th axis group；Z5. the 5th axis group；Z6. the 6th axis Group；Z7. the 7th axis group；Z8. the 8th axis group；

1. speed end lubricating pump；11. speed end lubricating pump outer end bearings；12. the pump shaft of speed end lubricating pump；13. 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. just to vertical oilhole；22. height is to oil groove；23. height is to lateral oilhole；24. Just to lateral oilhole gusset；

3. diplopore damps nozzle；31. the 5th axis group damps nozzle with diplopore；32. the 6th axis group damps nozzle with diplopore； 33. the 8th axis group damps nozzle with diplopore；34. third axis group damps nozzle with diplopore；35, first axle group is damped with diplopore sprays Mouth；3111. long inclined hole；3112. long centre bore；3113. side opening；3114. annular groove；3115. top surface；3116. long upper shell portions； 3117. long lower shell portions；

4. single hole damps nozzle；41. the 7th axis group damps nozzle with single hole；It is sprayed 42. low speed end lubricating pump is damped with single hole Mouth；43. the 4th axis group damps nozzle with single hole；44. the second axis group damps nozzle with single hole；45. speed end lubricating pump single hole Damp nozzle；4111. inclined hole；4112. centre bore；4113. top surface；4114. shell portion；

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. low high to main oil gallery；71. low high to vertical oilhole；72. low high to oil groove；73. low high to lateral oilhole；74. It is low high to lateral oilhole gusset；

Low speed end 8. (lubricating pump) unloading port；

9. assistant cooling structure；911. water hole；912. coal wall side water channels；913. mined out side water channels；914. (operating) water nozzle；921. Coal wall side end cap；9211. coal wall side end cap primary depositing slots；9212. coal wall side end cap secondary deposition slots；9213. coal wall side It covers into oilhole；9214. coal wall side end cap medial surfaces；922. mined out side end caps；9221. mined out side end cap primary depositing slots；9222. Mined out side end cap secondary deposition slot；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 slot of central axis；ZXZ2. the mined out side primary depositing slot of central axis；ZXZ3. central axis is adopted Empty side upper end enters oilhole.

Specific embodiment

The invention discloses a kind of two-way mutual lubricating systems of rocker arm of coal mining machine, as shown in figs. 1-12, are equipped with speed end and lubricate Pump 1 and low speed end lubricating pump 6, the speed end lubricating pump are sent oil liquid into the transmission system 93 of rocker arm to oil duct by height Close to several respective oil sites of axis group at low speed end and the inside oil site of low speed end lubricating pump (close to the swing arm The edge of shell be outside, the center portion close to the shell is inside), and be ejected into the pump shaft of low speed end lubricating pump On.If low speed end lubricating pump send into the transmission system oil liquid to remaining close speed end to oil duct by low height The inside oil site of dry axis group respective oil site 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 It is engaged respectively with the speed end axis group gear of the transmission system and low speed end axis group gear.After the transmission system starting, institute Speed end lubricating pump and low speed end lubricating pump are stated under the drive of speed end axis group and low speed end axis group while obtaining power and is started Operating.Speed end lubricating pump is outer in addition to providing lubrication for several axis groups close to low speed end, also for low speed end lubrication oil pump feed with And lubrication is provided for its inside oil site, meanwhile, low speed end lubricating pump is in addition to providing lubrication for several axis groups close to speed end Outside, oil pump feed also is lubricated for speed end and provide lubrication for its inside oil site.Oil liquid or mist of oil are ejected on corresponding pump shaft, Lubricating pump where can making pump shaft has always oil inlet, on the one hand pump shaft rotation lubricates the outside that oil liquid brings associated lubrication pump into Point, as long as pump shaft keeps rotation, outside oil site can be in good lubricating status in real time, on the other hand also can guarantee corresponding Lubricating pump constantly exports oil liquid outward.

The present invention realizes the mutual lubrication of rocker arm both ends lubricating pump, avoids existing in the high-order long-term oil starvation of lubricating pump As, while also assuring the lubrication of each axis group bearing in transmission system, rocker arm of coal mining machine is improved 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 It can be external pipeline, be also possible to the combination of the duct opened up in the shell of the rocker arm or 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 to oil duct include height in the shell that the rocker arm is set to 2 He of main oil gallery Just to branch's oil duct.The height is preferably laid in the top (top shown in Fig. 1 a, similarly hereinafter) of the shell to main oil gallery Extended from speed end to low speed end.The height corresponds phase to branch's oil duct with the height equipped with multiple to main oil gallery The outlet of connection, wherein the exit for leading to oil site is preferably provided with nozzle, 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 communicates.The exit normal of the speed end unloading port is directed toward the pump shaft of low speed end lubricating pump.The speed end unloading The actual internal area in hole is answered sufficiently small, is enabled and is formed the pump shaft that high pressure oil sprays to low speed end lubricating pump at this, so that speed end Lubricating pump can not be influenced by each swing position of swing arm and be worked normally.The speed end unloading port and the height are to main oil The sum of damping hole actual internal area 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, even so that being formed by high pressure from low level to high-order oil spout Also it can reach ideal oil supply effect.

Similarly, the low height includes that low height disposed in the housing is oily to branch to main oil gallery 7 and low height to oil duct Road.The top that the low height is preferably laid in the shell to main oil gallery is extended from low speed end to speed end.The low Gao Xiangzhu Oil duct is equipped with multiple outlets being connected with the low height to branch's oil duct one-to-one correspondence, wherein leading to 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 It communicates, 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 It communicates.The exit normal of low speed end unloading port is directed toward the pump shaft of the speed end lubricating pump.Low speed end unloading port with The sum of damping hole actual internal area of the low height nozzles all on main oil gallery is preferably smaller than the low high stream to 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 vertical direction setting, when the swing arm is in orientation shown in Fig. 1, even if the speed end unloads The outlet pressure of hole or low speed end unloading port is smaller or even without pressure, and oil liquid 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 in high-order or low level can guarantee that its each oil site obtains preferably 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, in a certain range by the control of their own outlet oil pressure, such as 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 actual internal area uniformity or is only deposited to oil duct and low height on oil duct everywhere In gradual change type transition, the height is less than to the sum of each branch actual internal area minimum value that oil duct leads to each oil site and pump shaft The actual internal area of the oil outlet of the speed end lubricating pump, the low height lead to each branch of each oil site and pump shaft to oil duct The sum of actual internal area minimum value is less than the actual internal area of the oil outlet of low speed end lubricating pump.

All oil sites of one axis group are usually to being applied to the height to branch's oil duct or a low height To branch's oil duct.The inside 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 above structure pattern (1), the nozzle includes diplopore damping nozzle 3 and single hole damping nozzle 4, for one The height uses single hole to branch's oil duct or low high the case where corresponding to an oil site to branch's oil duct, the corresponding nozzle Damp nozzle.The height described for one is to branch's oil duct or low high the case where corresponding to two oil sites to branch's oil duct, accordingly The nozzle can damp nozzle using single hole, the damping hole of the nozzle is used to be connected to main oil gallery and respective branch where it Towards the common portion of the oil circuit of two oil sites on oil duct.In Fig. 7 b and Fig. 9 b illustrated embodiment, it is preferred to use diplopore damping Nozzle, two damping holes of the diplopore damping nozzle are connected to 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 axis group shown in Fig. 7 b to being applied to the height to branch's oil duct, this just to point Branch oil duct includes height to lateral oilhole 23 and two height to vertical oilhole 21.Wherein, the height is to lateral oilhole It can set on the housing towards the downwardly projecting height of axis group into lateral oilhole gusset 24, using the reinforcing plate structure, both It can guarantee intensity of the height to lateral oilhole, and not need the thickness that large area increases upper part of the housing.

The lubrication of the bearings at both ends of axis 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 lateral oilhole 73 and two.Wherein, described low high to lateral oilhole It can set on the housing towards the downwardly projecting low height of corresponding axis group into lateral oilhole gusset 74.

The lubrication of the intermediate bearing of axis group shown in Fig. 8 a to being applied to the height to branch's oil duct, this just to point Branch oil duct includes height to lateral oilhole 23 and a height to vertical oilhole 21.The intermediate bearing of axis 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 to branch's oil duct include one low high to vertical oilhole 71。

The outlet and the low high outlet to main oil gallery on of the height on main oil gallery can be from it The cavernous structure that the bottom of place main oil gallery extends downwardly.

As shown in Fig. 8 a, 10a, 12, the matrix underpart of the single hole damping nozzle is shell portion 4114, and damping hole has One, can be made of inclined hole 4111 and centre bore 4112, the upper end opening of the damping hole in described matrix upper top with Outer region, lower ending opening is in the bottom surface of the shell portion, the mounting means of the single hole damping nozzle are as follows: outlet where it The top of cavernous structure be arranged to counterbore, the shell portion tightly fits in the counterbore, the top surface 4113 of described matrix It is bonded and is resisted against on the top surface of corresponding main oil gallery and the bottom surface of the counterbore respectively with bottom surface；

As shown in Fig. 7 b, 9b, 11, the matrix of the diplopore damping nozzle is equipped 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.There are two its damping holes, and mutually indepedent.Two damping holes Upper end be opened on the region other than 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 of long inclined hole 3111 and long centre bore 3112, the lower end of another damping hole It is opened on the slot inner surface (such as the upper wall surface and/or groove bottom that can be the circumferential groove in its end portion) of the circumferential groove in its end portion, is such as schemed In side opening 3113.The mounting means of the diplopore damping nozzle are as follows: the lower end of the cavernous structure exported where it is lateral with one Oilhole communicates, it is described transverse direction oilhole communicated with two vertical oilholes being disposed below, one of them vertical oilhole it is upper Mouth and the opening face, the top of the vertical oilhole are 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 lateral oilhole, institute The top surface 3115 and bottom surface for stating matrix are bonded respectively and are resisted against on the top surface of corresponding main oil gallery and the bottom surface of the counterbore.

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 be set larger to main oil gallery and low height to the actual internal area of main oil gallery, easy to process, facilitate cooling, The incidence for advantageously reducing blocking improves the reliability of swing arm.

The axial both ends of both ends support construction axis group are respectively equipped with end cap in the transmission system, as shown in Fig. 7,9, institute It is fixed on the housing to state end cap, the lateral surface of at least end cap of one end exposes to shell in both ends, which can With concordant with the outer surfaces of the shell.The end cap is preferably used such as flowering structure: the medial surface of the end cap is equipped with axis The annular flange of convex is respectively equipped with diameter on the radially inner and outer periphery (can for cylindrical surface or circular conical surface) of the flange To inner groove and radially outer ring slot, if the flange leads to equipped with what radially outer ring slot and radially inner ring slot described in capable person connected Hole.The through-hole is provided with the top of the flange, the preferably top close to the flange, to draw oil liquid from the top down Stream.The through-hole can radially extend, and preferably from top to bottom be directed toward the medial surface of corresponding end cap, alternatively, the through-hole The medial surface of lower mouth and corresponding end cap fits, so that oil liquid is after through-hole outflow along the inside surface current of the end cap Under, in order to which same end cap carries out heat exchange heat dissipation.The height corresponding to the radially outer ring slot and corresponding axis 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 axis group The outer end face held.Oil liquid is from the height to branch's oil duct or low height to branch's oil duct successively through radially outer ring slot, through-hole and diameter To inner groove, enters bearing from the outer end face of respective end spring bearing and it is lubricated.It is not only real using above-mentioned end cover structure Show the lubrication drainage of the bearings at both ends of both ends support construction axis group, and also enhances the cooling of oil liquid.Especially wherein extremely The lateral surface of few one end end cap exposes to the shell, is more conducive to the heat exchange of end cap and the outer air of shell, therefore into one Step improves heat dissipation effect.

By taking the 5th axis group shown in Fig. 7 as an example, the radially outer ring slot on coal wall side end cap 921 acts also as primary depositing slot 9211, when oil liquid flows through the slot from up to down oil in impurity can reside in the slot, the through-hole thereon be into oilhole 9213, With coal wall side end cap medial surface 9214 is at an acute angle is arranged diagonally downward, inclined direction is that the through-hole is from top to bottom directed toward the coal The direction of wall side end cap medial surface, it is abundant with end cap heat exchange while oil liquid is miscellaneous to keep oil liquid to flow down along rubbing surface of end cover Matter is maintained in radially inner ring slot i.e. secondary deposition slot 9212 (referring to Fig. 7 a).Radially outer ring slot on mined out side end cap 922 fills When primary depositing slot 9221, impurity can be resided in the slot in oil when oil liquid flows through the slot 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 is arranged diagonally downward, inclined direction be the through-hole by Up to the lower direction for being directed toward the mined out side end cap medial surface, to keep oil liquid to flow down along rubbing surface of end cover, with end cap heat exchange Sufficiently, while by oil residue it is maintained in radially inner ring slot i.e. secondary deposition slot 9222 (referring to Fig. 7 c).The two of 5th axis group Hold end cap exposed.On the one hand lubricant effect can be improved in the setting of dislodger, the work that swing arm on the other hand can be improved can By property.

By taking third axis group shown in Fig. 9 as an example, coal wall side end cap 921 can be the combined type that inside and outside end cap is assembled End cap.Radially outer ring slot acts also as primary depositing slot 9211, is arranged on outer end cap.Radially inner ring slot acts also as secondary deposition slot 9212, it is arranged in inner end cap.The through-hole is that the medial surface 9214 in inner end cap, with inner end cap is arranged into oilhole 9213 It is at an acute angle to be arranged diagonally downward or the medial surface of the lower mouth and corresponding end cap of the through-hole fits.It is opposite between inside and outside end cap Periphery between there are gap, outer end cap is equipped with several accessibke porosities radially extended, and accessibke porosity is connected to the radially outer ring slot With the gap.Impurity can reside in the slot in oil when oil liquid flows through the radially outer ring slot from up to down, and oil liquid successively passes through The accessibke porosity, gap, through-hole, the medial surface along inner end cap flow down, and carry out sufficient heat exchange with inner end cap, while by oil liquid Impurity is maintained in radially inner ring slot (referring to Fig. 9 a).Radially outer ring slot on mined out side end cap 922 serves as primary depositing slot 9221, when oil liquid flows through the slot from up to down oil in impurity can reside in the slot, the through-hole thereon be into oilhole 9223, Can with mined out side end cap medial surface is at an acute angle is arranged diagonally downward, it is described mined out that inclined direction is that the through-hole is from top to bottom directed toward The medial surface of the lower mouth and corresponding end cap of the direction of side end cap medial surface or the through-hole fits, to keep oil liquid along end Lid medial surface flows down, and carries out sufficient heat exchange with end cap, while oil residue is maintained at radially inner ring slot i.e. secondary deposition (referring to Fig. 9 c) in slot 9222.The coal wall side end cap of third axis group is exposed end cap.Using combined type end cap, inside and outside end cap Partial structurtes can be with more flexible changeable, the characteristics of to adapt to the structure of corresponding position on corresponding axis group end and shell.

As shown in Fig. 8,10, the central axis of interlude support construction axis group is preferably using following knot in the transmission system Structure: the central axis is equipped with central blind hole, and as secondary deposition slot ZXZ1, the middle part of the central axis and nearly root are respectively provided with The radial direction oil hole communicated with the central blind hole is additionally provided with radially outer ring slot on nearly root, and the radially outer ring slot is as primary heavy Product slot ZXZ2, the height corresponding to the radially outer ring slot and corresponding axis group is to branch's oil duct or low high to branch's oil duct Joining distal ends communicate.The radial direction oil hole of nearly root is provided with the radially outer ring to outward opening as oilhole ZXZ3 is entered In slot, two groups of the centre spring bearing that the interlude support construction axis group is provided with to outward opening of the radial direction oil hole at middle part Between the installation site on the central axis.Oil liquid successively through the radially outer ring slot, nearly root the radial direction oil hole, in Heart blind hole, the radial direction oil hole at middle part flow to intermediate two groups of spring bearings, and in the process, the impurity in oil liquid can be successive By depositing twice, it is respectively deposited in radially outer ring slot 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 height to oil duct, be respectively set and institute Height is stated to main oil gallery and low height to the corresponding cooler of main oil gallery, serves as its institute with the exothermic medium channel of the cooler The a part and described low high a part to main oil gallery of the corresponding height to main oil gallery；For the institute of structural shape (2) Height is stated to oil duct and low height to oil duct, is respectively set with the height to oil duct and low high to the corresponding cooler of oil duct, With the exothermic medium channel of the cooler serve as it corresponding to the height to a part of trunk roads of oil duct and described A part of 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 that the top for being laid in the shell including at least two extends from speed end to low speed end, described in two Water channel is spaced apart from each other arrangement to main oil gallery and low height to main oil gallery with the height, and several (operating) water nozzles are equipped at intervals 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 shell, is opened on institute It states on the outer surface of shell.Cooling water enters two water channels behind the water hole, then is sprayed by each water on the water channel Mouth sprays, and water flow drives the height to cool down to main oil gallery and low high strengthen to main oil gallery, preferably improves heat dissipation effect.

Water channel of the water hole as the water channel can be communicated with one end of the close speed end of the water channel.

When the height uses structural shape (1) to oil duct to oil duct and low height, the auxiliary coolant system can be adopted With structural shape (a) and/or structural shape (b), when the height to oil duct and it is low it is high use structural shape (2) to oil duct when, The auxiliary coolant system can use structural shape (a).In addition, being suitable for passing through setting for the swing arm of high-power operation 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, lubricating system is using two-way mutual described in any one of the above Lubricating system.In Fig. 1, rocker arm of coal mining machine shown in 2, the transmission system includes the first axle group Z1 being successively sequentially connected, Two axis group Z2, third axis group Z3, the 4th axis group Z4, the 5th axis group Z5, the 6th axis group Z6, the 7th axis group Z7 and the 8th axis group Z8, The first axle group is driven by motor, and the first axle group is speed end axis group, and the 8th axis group is low speed end axis group.It is described 5th axis group, the 6th axis group, the oil outlet phase of the 7th axis group and the 8th respective oil site of axis group and the speed end lubricating pump Logical, i.e. the lubrication of the 5th axis group, the 6th axis group, the 7th axis group and the 8th axis group is completed by the speed end lubricating pump, and described the One axis group, the second axis group, third axis group and the 4th respective oil site of axis group are communicated with the oil outlet of low speed end lubricating pump, I.e. the lubrication of first axle group, the second axis group, third axis group and the 4th axis group is completed by low speed end lubricating pump.

The height is to main oil gallery and the low height to main oil gallery respectively close to the coal wall side and mined out side of the rocker arm, phase Ying Di, the water channel may include coal wall side water channel 912 and mined out side water channel 913, and main oil gallery and water channel interval are arranged.The height It is low to main oil gallery and the low height be preferably provided with to main oil gallery it is at L-shaped, before big portion extend straight, and in end to opposite side Bending can shorten the distance from oil site on the inside of main oil gallery to pump shaft and lubricating pump in this way, therefore can simplify corresponding oil Line structure.Such as Fig. 5, corresponding oil circuit is directly communicated only with vertical oilhole with corresponding main oil gallery in 6.

The height to main oil gallery (or described low high to main oil gallery) can be the top surface of the shell 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 bonded and is resisted against on the bottom surface of corresponding oil groove welding plate.

The second axis group, the 4th axis group and the 7th axis group are interlude support construction axis group, and structure is similar, accordingly Lubricant passage way is referred to Fig. 8 and 10.The first axle group, third axis group, the 5th axis group, the 6th axis group and the 8th axis group are two Support construction axis group is held, structure is similar, and corresponding lubricant passage way is referred to Fig. 7 and 9.The height leads to institute on main oil gallery The single hole damping nozzle is arranged in the exit for stating the oil site of the inside of the 7th axis group and low speed end lubricating pump, respectively 41 and 42, towards the exit of the oil site of the 5th axis group, the 6th axis group and the 8th axis group, the diplopore damping spray is set Mouth, respectively 31,32 and 33.The low height leads to the second axis group, the 4th axis group and the speed end lubricating pump on main oil gallery The exit of oil site of inside the single hole be set damp nozzle, be 44,43 and 45 respectively, lead to first axle group and third The exit of the oil site of axis group is arranged the diplopore and damps nozzle, is 35 and 34 respectively.

As shown in Figure 5,6, the both ends of the pump shaft of the speed end lubricating pump and low speed end lubricating pump pass through bearing support, Interior end bearing 13 and 63 is the inside oil site of associated lubrication pump, and outer end bearings 11 and 61 are the outside lubrication of associated lubrication pump Point.On the housing, outer end bearings are supported on pump end cap inner end bearing support, and the pump end cap is fixed on the shell On.The pump shaft 12 and 62 is helical axis.Part pump shaft close to outer end bearings is surrounded the cylinder being arranged on the housing 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 set in the shell, the upper end of the oil outlet is communicated with corresponding main oil gallery, lower end and the cylindrical tube shape chamber It communicates 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 The pump shaft rotation of pump shaft, low speed end lubricating pump drives oil lubrication low speed end lubricating pump outer end bearings, while also passing through low speed end The oil outlet of lubricating pump pumps out, and forms the fuel-displaced of low speed end lubricating pump.Similarly, the fuel-displaced of low speed end lubricating pump is unloaded by low speed end The pump shaft of speed end lubricating pump is sprayed to behind load hole, the pump shaft rotation of speed end lubricating pump drives outside oil lubrication speed end lubricating pump End bearing, while also being pumped out by the oil outlet of speed end lubricating pump, form the fuel-displaced of speed end lubricating pump.

Claims

1. a kind of two-way mutual lubricating system of rocker arm of coal mining machine, it is characterised in that: it is equipped with speed end lubricating pump and low speed end lubricating pump, Oil liquid is sent into the transmission system of rocker arm several axis close to low speed end by height by the speed end lubricating pump to oil duct It organizes the inside oil site of respective oil site and low speed end lubricating pump and is ejected into the pump shaft of low speed end lubricating pump On, if low speed end lubricating pump send into the transmission system oil liquid to remaining close speed end to oil duct by low height It does the inside oil site of the respective oil site of axis group and the speed end lubricating pump and is 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 respectively fixedly mounted on pump shaft respectively with the transmission The speed end axis group gear and low speed end axis group gear of system engage.

2. the two-way mutual lubricating system of rocker arm of coal mining machine as described in claim 1, it is characterised in that: the height is to oil duct and low Height to oil duct be any one following structural shape: structural shape (1) described height includes that the rocker arm is arranged in oil duct For height in shell to main oil gallery and height to branch's oil duct, the height is laid in the top of the shell by height to main oil gallery Fast end extends to low speed end, and the height is equipped with multiple correspond with the height to branch's oil duct to main oil gallery and is connected Outlet, wherein lead to oil site exit be provided with nozzle, the height is to main oil gallery via the damping hole of 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 It is communicated with the oil sump of low speed end lubricating pump, the exit normal of the speed end unloading port is directed toward low speed end lubricating pump Pump shaft, the speed end unloading port and the height the sum of damping hole actual internal area of all nozzles on main oil gallery are less than institute 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；

It is described it is low it is high to oil duct include disposed in the housing low high to main oil gallery and low high to branch's oil duct, the low height The top of the shell is laid in main oil gallery to be extended from low speed end to speed end, it is described it is low it is high to main oil gallery be equipped with it is multiple with The low high outlet being connected to branch's oil duct one-to-one correspondence, wherein the exit for leading to oil site is provided with nozzle, it is described Low height is communicated with the corresponding low height to branch's oil duct to main oil gallery via the damping hole of the nozzle, leads to 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 be directed toward the pump shaft of the speed end lubricating pump, low speed end unloading port and the low height own on main oil gallery The sum of damping hole actual internal area of nozzle is less than the low high actual internal area to main oil gallery, moistens again smaller than the low speed end The actual internal area of the oil outlet of sliding pump；

Structural shape (2): height actual internal area uniformity or there is only gradually everywhere on oil duct to oil duct and low height Variant transition, the height lead to the sum of each branch actual internal area minimum value of each oil site and pump shaft to oil duct less than described The actual internal area of the oil outlet of speed end lubricating pump, the low high each branch circulation for leading to each oil site and pump shaft to oil duct The sum of sectional area minimum value 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 includes diplopore resistance Buddhist nun's nozzle and single hole damp nozzle, and the height described for one corresponds to an oil site to branch's oil duct or low height to branch's oil duct The case where, the corresponding nozzle damps nozzle using single hole, and the height described for one is to branch's oil duct or low high to branch Oil duct corresponds to the case where two oil sites, and the corresponding nozzle damps nozzle using diplopore, and the diplopore damps the two of nozzle A damping hole is connected to the difference for leading to two oil sites on the 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 the low high outlet on main oil gallery be extended downwardly from the bottom of main oil gallery where it is poroid Structure；

The matrix underpart of the single hole damping nozzle is shell portion, and damping hole has one, the upper end opening of the damping hole Region other than described matrix upper top, lower ending opening damp nozzle in the bottom surface of the shell portion, the single hole Mounting means are as follows: the top of the cavernous structure exported where it is arranged to counterbore, and the shell portion tightly fits in the counterbore In, the top and bottom of described matrix are bonded respectively and are resisted against on the top surface of corresponding main oil gallery and the bottom surface of the counterbore；

The matrix of the diplopore damping nozzle is equipped with upper shell portion and lower shell portion, is circumferential between upper and lower shell portion Annular groove, there are two damping holes, and mutually indepedent, the upper end 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 slot inner surface of the circumferential groove in its end portion, the mounting means of the diplopore damping nozzle are as follows: what is exported where it is poroid The lower end of structure is communicated with a lateral oilhole, and the transverse direction oilhole is communicated with two vertical oilholes being disposed below, wherein one The suitable for reading and opening face of a vertical oilhole, the top of the vertical oilhole are arranged to counterbore, the upper shell portion Tightly fit in the cavernous structure of the outlet, the lower shell portion tightly fits in the counterbore, the circumferential groove in its end portion with The transverse direction oilhole communicates, and the top and bottom of described matrix are bonded respectively and are resisted against the top surface of corresponding main oil gallery and described heavy 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 axis group also further using such as flowering structure:

(1) the axial both ends of both ends support construction axis group are respectively equipped with end cap in the transmission system, and the end cap is fixed on On the shell, the lateral surface of at least end cap of one end exposes to the shell in both ends, and the medial surface of the end cap is set There is the annular flange of axial evagination, is respectively equipped with radially inner ring slot and radially outer ring on the radially inner and outer periphery of the flange Slot, if the top of the flange is equipped with the through-hole that radially outer ring slot and radially inner ring slot described in capable person connect, the diameter is outside Annular groove is communicated with the height corresponding to corresponding axis 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 towards corresponding axis group respective end spring bearing outer end face；

(2) central axis of interlude support construction axis group is equipped with central blind hole in the transmission system, in the central axis Portion and nearly root are respectively provided with the radial direction oil hole communicated with the central blind hole, and radially outer ring slot, the diameter are additionally provided on nearly root It is communicated to outer groove with the height corresponding to corresponding axis 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 provided in the radially outer ring slot outward opening, the radial direction oil hole at middle part to external-open Mouth is provided with two groups of the centre spring bearing of the interlude support construction axis group between the installation site on the central axis.

6. the two-way mutual lubricating system of rocker arm of coal mining machine as claimed in claim 5, it is characterised in that: described logical on the flange The medial surface of corresponding end cap is from top to bottom directed toward in hole, alternatively, the through-hole radially extends, alternatively, 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 or 4, it is characterised in that: it is cold to be additionally provided with auxiliary But system, the auxiliary coolant system include following structural shape:

Structural shape (a): for structural shape (1) the height to oil duct and it is low height to oil duct, be respectively set and the height It is low to main oil gallery and low high to the corresponding cooler of main oil gallery, serve as it with the exothermic medium channel of the cooler corresponding to A part from the height to main oil gallery and described low high a part to main oil gallery；For the height of structural shape (2) It is low to oil duct and low height is to oil duct, be respectively set with the height to oil duct and low high to the corresponding cooler of oil duct, use institute State cooler exothermic medium channel serve as trunk roads from the height corresponding to it to oil duct a part and the low height To a part of the trunk roads of oil duct；

Structural shape (b): for structural shape (1) the height to oil duct and low high to oil duct, be equipped at least two layings In the water channel that the top of the shell extends from speed end to low speed end, two water channels and the height are to main oil gallery and low Height is spaced apart from each other arrangement to main oil gallery, and several (operating) water nozzles are equipped at intervals on the water channel, and one end of the water channel is communicated with water hole, Other end closing, the water hole are arranged in the shell, are opened on the outer surface of the shell；

When the height uses structural shape (1) to oil duct to oil duct and low height, the auxiliary coolant system uses structural type Formula (a) and/or structural shape (b), when the height uses structural shape (2) to oil duct to oil duct and low height, the auxiliary Cooling system uses structural shape (a).

8. the two-way mutual lubricating system of rocker arm of coal mining machine as claimed in claim 5, it is characterised in that: be additionally provided with supplement heat rejecter system System, the auxiliary coolant system includes following structural shape:

9. the two-way mutual lubricating system of rocker arm of coal mining machine as claimed in claim 6, it is characterised in that: be additionally provided with supplement heat rejecter system System, the auxiliary coolant system includes following structural shape:

10. a kind of rocker arm of coal mining machine, it is characterised in that: its lubricating system is described two-way using any one in claim 1-9 Mutual lubricating system, the transmission system be equipped with successively be sequentially connected first axle group, the second axis group, third axis group, the 4th axis group, 5th axis group, the 6th axis group, the 7th axis group and the 8th axis group, the first axle group are driven by motor, and the first axle group is height Fast end axis group, the 8th axis group are low speed end axis group, and the 5th axis group, the 6th axis group, the 7th axis group and the 8th axis group are each From oil site communicated with the oil outlet of the speed end lubricating pump, the first axle group, the second axis group, third axis group and the 4th The respective oil site of axis group is communicated with the oil outlet of low speed end lubricating pump.

11. a kind of rocker arm of coal mining machine, it is characterised in that: its lubricating system uses the two-way mutual lube system of claim 3 or 4 System, the transmission system are equipped with first axle group, the second axis group, the third axis group, the 4th axis group, the 5th axis being successively sequentially connected Group, the 6th axis group, the 7th axis group and the 8th axis group, the first axle group are driven by motor, and the first axle group is speed end axis Group, the 8th axis group are low speed end axis group, the 5th axis group, the 6th axis group, the 7th axis group and the 8th respective profit of axis group Sliding point is communicated with the oil outlet of the speed end lubricating pump, and the first axle group, the second axis group, third axis group and the 4th axis group are each From oil site communicated with the oil outlet of low speed end lubricating pump, just to main oil gallery and it is low height to main oil gallery respectively close to institute The coal wall side and mined out side of rocker arm are stated, the second axis group, the 4th axis group and the 7th axis group are interlude support construction axis group, institute Stating first axle group, third axis group, the 5th axis group, the 6th axis group and the 8th axis group is both ends support construction axis group, just to main oil The single hole damping is arranged in the exit for the oil site for leading to the inside of the 7th axis group and low speed end lubricating pump on road Nozzle is arranged the diplopore towards the exit of the oil site of the 5th axis group, the 6th axis group and the 8th axis group and damps nozzle, The exit of the oil site of the low high inside for leading to the second axis group, the 4th axis group and the speed end lubricating pump on main oil gallery is set The single hole damping nozzle is set, the diplopore damping spray is set towards the exit of the oil site of first axle group and third axis group Mouth.

12. rocker arm of coal mining machine as claimed in claim 11, it is characterised in that: the speed end lubricating pump and low speed end lubricating pump The both ends of pump shaft pass through bearing support, interior end bearing is the inside oil site of associated lubrication pump, and outer end bearings are corresponding profit The outside oil site of sliding pump, the pump shaft be helical axis, is enclosed in close to the part pump shaft of outer end bearings and is arranged on shell In cylindrical tube shape chamber, the part pump shaft close to interior end bearing is exposed in oil sump, and the oil outlet of the lubricating pump is set to shell In body, the upper end of the oil outlet is communicated with corresponding main oil gallery, and lower end communicates with the cylindrical tube shape chamber and close to described Outer end bearings.