CN201696846U

CN201696846U - Lubricating device of coal mining machine rocker

Info

Publication number: CN201696846U
Application number: CN2010202268303U
Authority: CN
Inventors: 章立强; 杨丽伟; 刘昆明; 陶嵘; 朱红
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: 2010-06-13
Filing date: 2010-06-13
Publication date: 2011-01-05
Anticipated expiration: 2020-06-13

Abstract

A lubricating device of a coal mining machine rocker mainly solves the technical problem that the rocker transmission parts can realize forced lubrication when the coal mining machine carries out ascending and descending coal mining. The technical scheme is reflected that: front and rear oil basins respectively are arranged at the both ends of the rocker; front and rear lubricating oil pumps are respectively arranged in the front and rear oil basins the front and rear lubricating oil pumps are respectively connected with each lubricating point of a driving wheel system through a pipe, a valve or a runner; the front and rear lubricating oil pumps are respectively connected with the driving wheel system in a driving manner. The utility model is suitable for a coal mining machine in various coal seams with large dip angle and wide variation range of coal seam thickness, in particular to a low coal seam.

Description

The rocker arm of coal mining machine lubricating fitting

Technical field:

The utility model relates to a kind of transmission device of rocker arm of coal mining machine, and particularly this device is about device lubricated or cooling.

Background technique:

Be provided with multilevel gear drive mechanism in the rocking arm of coal winning machine (cutting portion) housing, this mechanism drives cutting drum, and driving components such as its middle gear, bearing all bear big load, need have good lubricating condition, and early stage lubricant method mostly is to adopt splashing; In the coal winning machine operation process, when running into the inclined cut; rocking arm needs to rotate the luffing angle of setting around its fixed support for adapting to this condition; be laid in the driving mechanism of rocking arm inner chamber and lubricant oil thereof also along with tilting and flowing; the formed oil sump liquid level of this inner chamber changes; the function of splash lubrication also can disappear therefrom, and its result will cause driving component wearing and tearing aggravation, also may initiating failure and influence the efficient of coal mining activity; At this, Chinese patent ZL200520090355.0 proposes a kind of " coal winning machine gear-box automatic lubricator ", this device is with the fuel tank of gear housing as the oily device of automatic profit, one oil pump is installed on the coal winning machine transmission shaft, oil pump one end is communicated with by fuel sucking pipe and gear housing, the other end is connected to gear and bearing profit oil drop through pipeline road, establish one-way valve on the pipeline, filter, pressure gauge, relief valve, solve the lubricated of rocking arm most significant end place's gear and bearing, the fuel sucking pipe of this scheme is installed in appropriate position, gear housing bottom, from the figure oil suction is gear-box oil sump in the nearly motor side of rocking arm, pressure oil can be sent to high-end place (can be sent to the nearly cylinder end of rocking arm), promptly this scheme adapt to the nearly cylinder end of rocking arm be higher than its nearly motor side working state---rocking arm is faced upward attitude, if during operation; the nearly cylinder end of rocking arm is lower than the working state of the nearly motor side of rocking arm---the rocking arm attitude of bowing; the lubricant oil in the gear-box oil sump flows to lower under the deadweight effect; the distolateral oil sump of gear-box motor does not have oil; oil pump also will lose the function to high-end place (being the nearly motor side of rocking arm) fuel feeding this moment; therefore, such scheme can't realize that each driving component of rocking arm pitching attitude all can obtain the function of pressure lubrication; Chinese patent ZL200610027942.4 proposes the enforced lubricating device of a kind of coal winning machine cut transmission unit, mainly solve the driving component lubrication problem on the high_dipping face rocking arm, this scheme is with dip sensor SC sigmal control hydraulic system, drive lubricating pump to casing upper end inner chamber driving component fuel feeding by oil hydraulic motor, promptly adapt to rocking arm and face upward attitude work, this systematic comparison complexity herein, equipment cost is also than higher; Chinese patent ZL200820231315.7 proposes " a kind of built-in forced lubricating system of rocker arm of coal mining machine ", this scheme adds the enforced lubricating gear pump in rocking arm, this pump is driven by the driving gear on the motor output shaft, when rocking arm is bowed attitude work, lubricant oil in the motor side rocking arm inner chamber oil sump all flows to the cylinder end, inlet port in this oil sump can't be drawn onto oil, and each driving component of power train can't realize forcing the profit Hong Kong and Macao Compatriot equally in the rocking arm; In actual coal mining activity, up coal mining of coal winning machine (rocking arm is faced upward attitude) or the descending coal mining of coal winning machine (rocking arm bow attitude) all are normalities, how to guarantee that various driving components all can obtain good lubricating condition in the rocking arm, the dealer adopts independently lubricating fitting, this device drags oil pump by motor special and constitutes, it is irrelevant that situation is bowed, faced upward to its operation function and rocking arm, but this scenario-frame complexity, difficult arrangement, increase energy consumption.Above-mentioned each patent that relates to all adopts volumetric oil pump, and because of gear oil viscosity height, the positive displacement pump self-priming performance is poor.

The model utility content:

Technical problem to be solved in the utility model is, provide a kind of improved rocker arm of coal mining machine to moisten oily device, it can be when the coal winning machine upstream or downstream be mined, and each driving component all can obtain good pressure lubrication condition in the rocking arm, and can keep simple in structure lower with energy consumption.

The technical scheme in the invention for solving the above technical problem is

The rocker arm of coal mining machine lubricating fitting includes the rocking arm housing, oil sump, lubricating pump, oil feed line valve member or oil duct, drive train; be provided with lubricating pump in the oil sump that the rocking arm housing forms; the lubricating pump outlet is connected with carries oil feed line valve member or the runner of lubricant oil to each lubricating point of drive train; the gear drive that is provided with on the pump shaft of lubricating pump is connected with drive train; be characterized in: oil sump before and after nearly motor side of rocking arm housing and nearly cylinder end are formed with respectively; before the front and back oil sump is respectively equipped with; the lubricating pump of back; the front and back lubricating pump respectively by the road; valve member or runner are connected with each lubricating point of drive train, the front and back lubricating pump is driving with drive train respectively and is connected.In the coal winning machine operation, rocking arm is when facing upward attitude, and the preceding lubricating pump of nearly motor side is forced for lubricant oil to each lubricating point, and rocking arm is when bowing attitude, and the back lubricating pump of nearly cylinder end is forced for lubricant oil to each lubricating point.

Before the utility model adopts power train to drag respectively, the scheme of back lubricating pump, no matter realizing coal seam large-inclination-angle coal bed and the mining height range up (rocking arm be face upward attitude) or descending (rocking arm is the attitude of bowing) mode mines, can guarantee that all each driving component obtains good lubrication in the rocking arm, thereby improve the rocking arm whole reliability greatly, while and independent oil supply scheme are relatively, its structure is simplified greatly, energy consumption also can reduce, it adopts helical blade type pump shaft structure anti-pollution, better performances such as impurity, the gauge wear of its blade does not influence the ability of delivering oil, thereby improves the rocking arm whole reliability greatly.

Description of drawings:

Fig. 1 is the structural representation of the utility model rocker arm of coal mining machine lubricating fitting.

Fig. 2 is a lubricating pump structural representation among Fig. 1.

Fig. 3 is that rocking arm is faced upward attitude work schematic representation.

Fig. 4 is the rocking arm attitude work schematic representation of bowing.

Embodiment:

With reference to Fig. 1, lubricating pump 1,1 ', drive train 2, rocking arm housing 3, motor 4, cylinder 5 before and after the rocker arm of coal mining machine lubricating fitting includes.

Front and back lubricating pump 1,1 ', both structures are identical, preceding lubricating pump 1 is to be laid in rocking arm front end (near motor side), back lubricating pump 1 ' is to be laid in rocking arm rear end (near cylinder end), as shown in Figure 2, this pump includes fore bearing 11, back-up ring 12, driven wheel 13, housing 14, filler opening 15, pump shaft 16, oil outlet 17, rear bearing 18, wherein:

Forward and backward bearing 11,18 can be selected rolling bearing for use, and fore bearing 11 is installed in the wall portion 31 of rocking arm housing 3, and rear bearing 18 is to be installed on the housing 14;

Driven wheel 13 is front gear 23 engagements with drive train 2, and and pump shaft 16 usefulness keys be driving and be connected, driven wheel 13 1 ends hold back-up ring 12, the other end holds the convex shoulder at pump shaft 16, realizes its axially locating on pump shaft 16;

Housing 14 is a cylinder, and its end is provided with flange, and housing 14 is installed in the mounting hole 34 of wall portion 31 of rocking arm housing 3, and with the bolt that wears in the end flange housing 14 is fixed on wall portion 31;

Filler opening 15 is the openings on the housing 14, and the position of filler opening 15 must guarantee, when in the front or rear oil sump 33,33 ' during trapped fuel, this filler opening 15 should be in the liquid level below of preceding oil sump 33 or back oil sump 33 ';

Pump shaft 16 is significant components of pump, this two supports is preceding, rear bearing 11,18, nearby bearing 11 appropriate positions are equipped with driven wheel 13, the principal piece of pump shaft 16 is formed with helical blade, can be processed to form its helical blade by the common screw pump, the diameter of helical blade and housing 14 endoporus are Spielpassung, during pump shaft 16 rotations, helical blade such as screw conveyer oil suction also are extruding type oil are pressed to outlet from import, thereby the wearing and tearing of helical blade in service can not influence the conveying capacity of pump, the performance of antipollution and impurity is extremely strong, improves the maintenance condition of pump greatly, improves the global reliability of equipment;

Oil outlet 17, be positioned at the rear end of housing 14, form by radially one group of perforate of the pump housing 14 and the circumferential fluting on the external cylindrical surface, oil outlet 35 and back oil outlet 35 ' before in the wall portion 31 of rocking arm housing 3, offering, as shown in Figure 1, forward and backward oil outlet 35,35 ' and the circumferential fluting of the pump housing 14 be communicated with, the lubricant oil that pumps is delivered to drive train 2 each lubricating point from forward and backward oil outlet 35, the 35 ' runner of offering or the pipeline valve member that lays in wall portion 31, described pipeline, valve member or runner are equal and prior art is same or similar.

Drive train 2, its structure is identical with prior art, this train is in order to give cylinder 5 with the transmission of power of motor 4, the utility model is to utilize existing structure, driven wheel 13 engagements with front gear 23 on motor 4 shaft extensions of this train and preceding lubricating pump 1, lubricating pump 1 before directly dragging, front gear 23 drives backgear 21 on 5 on the cylinders through intergrade dentition 22 engagement, driven wheel 13 engagements with backgear on 5 on the train cylinder 21 and back lubricating pump 1 ' directly drag back lubricating pump 1 '.

Rocking arm housing 3, its structure and prior art are basic identical, include wall portion 31, cavity 32, before, back oil sump 33,33 ', mounting hole 34 and before, back oil outlet 35,35 ', the cavity 32 (as Fig. 2) that wall portion 31 forms is in order to ccontaining drive train 2, characteristics of the present utility model are the two ends at described wall portion 31 and cavity 32, be before nearly motor side and nearly cylinder end are formed with respectively, back oil sump 33,33 ' (as Fig. 1,4), existing structure all has only preceding oil sump, this external wall portion 31 can offer carry lubricant oil before, back oil outlet 35,35 ', again by preceding, back oil outlet 35,35 ' offers the runner of guiding each lubricating point in wall portion 31, and this runner also can be replaced by the pipeline and the valve member of the wall portion 31 that is laid in.

In actual production, it is bigger to have a large amount of inclination angles, the coal seam of Coal Seam Thickness Change wider range, girdle particularly, in recovery process, during the up coal mining of coal winning machine; rocking arm is faces upward attitude work as shown in Figure 3; this moment is before the lubricating pump of nearly motor 4 ends of rocking arm is in low side below battery 33 liquid levels; after motor 4 runnings; front gear 23 drives driven wheels 13 and orders about pump shaft 16 rotations, pump is from filler opening 15 oil suctions, and pumps from oil outlet 17; again through preceding oil outlet 35; runner is sent to the lubricating point of high-end (rocking arm cylinder end) each driving component, pressure lubrication when realizing that rocking arm is faced upward attitude; When the descending coal mining of coal winning machine; rocking arm is bow attitude work such as Fig. 4; at this moment; oil sump 33 ' liquid level below after the lubricating pump 1 ' of nearly cylinder 5 ends of rocking arm is in low side; after motor 4 runnings, backgear 21 drives driven wheels 13 and orders about a pump 16 rotations, and the pump operation process is with above-mentioned identical; lubricant oil is sent to the lubricating point of high-end (rocking arm motor side) each driving component, pressure lubrication when the realization rocking arm is bowed attitude through back oil outlet 35 ', runner.

Claims

1. rocker arm of coal mining machine lubricating fitting, this lubricating fitting includes the rocking arm housing, oil sump, lubricating pump, oil feed line valve member and oil duct, drive train; be provided with lubricating pump in the oil sump that the rocking arm housing forms; the lubricating pump outlet is connected with carries oil feed line valve member or the runner of lubricant oil to each lubricating point of drive train; the gear drive that is provided with on the pump shaft of lubricating pump is connected with drive train; it is characterized in that: before nearly motor (4) end of rocking arm housing (3) and nearly cylinder (5) end are formed with respectively; back oil sump (33; 33 '); preceding; before being respectively arranged with in the back oil sump (33; 33 '); back lubricating pump (1; 1 '); preceding; back lubricating pump (1; 1 ') respectively by the road; valve member; runner is connected with each lubricating point of drive train (2), and is preceding; back lubricating pump (1; 1 ') is to drive with drive train (2) respectively and is connected.

2. rocker arm of coal mining machine lubricating fitting according to claim 1, before it is characterized in that, back lubricating pump (1,1 ') include fore bearing (11), back-up ring (12), driven wheel (13), pump case (14), filler opening (15), pump shaft (16), oil outlet (17) and rear bearing (18), before, rear bearing (11,18) and pump case (14) be installed in the wall portion (31) of rocking arm housing (3), dispose pump shaft (16) in the pump case (14), pump shaft (16) is provided with helical blade, pump shaft (16) is installed with driven wheel (13), be respectively arranged with filler opening (15) and oil outlet (17) on the pump case (14), before this filler opening (15) is positioned at, back oil sump (33,33 ') below of liquid level.

3. rocker arm of coal mining machine lubricating fitting according to claim 1, it is characterized in that driven wheel (13) and front gear (23) engagement of drive line (2), the driven wheel (13) that the pump shaft (16) of the back lubricating pump (1 ') in nearly cylinder (5) the end oil sump (33) sets firmly and the engagement of the backgear (21) of power train (2) that nearly motor (4) holds the pump shaft (16) of the preceding lubricating pump (1) in the oil sump (33) to set firmly.