CN202108942U

CN202108942U - Subsection lubrication structure of coal mining machine rocker arm gear cavity

Info

Publication number: CN202108942U
Application number: CN2011201875271U
Authority: CN
Inventors: 章立强; 周常飞; 王兆胜; 王卓敏; 郭岱; 钱立全
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: 2011-06-03
Filing date: 2011-06-03
Publication date: 2012-01-11
Anticipated expiration: 2021-06-03

Abstract

The utility model discloses a subsection lubrication structure of a coal mining machine rocker arm gear cavity, which mainly solves the technical problems that a high-power coal mining machine rocker arm adopts splash lubrication and the like, the technical scheme adopted by the subsection lubrication structure is that first sealing assemblies are arranged on an intermediate shaft and a sealing base which corresponds to a shell, and divide the gear cavity into a first cavity and a second cavity, which are both independent sealing space, and the subsection lubrication structure is applicable to various high-power coal mining machine rocker arms.

Description

Rocker arm of coal mining machine gear cavity segmentation lubricating structure

Technical field:

The utility model relates to the assembly of a kind of cutting rod, particularly a kind of cutting rod.

Background technique:

Lubricating of existing rocker arm of coal mining machine has following dual mode usually:

Be provided with oil sump in the gear transmission chamber of splash lubrication---rocking arm; Gear transmission forms lubricating oil splash; With lubricated each gear and bearing, one section coal winning machine that only is suitable for the seam mining that the inclination angle is less, mining height is little of this method, simple splash lubrication can satisfy the demands;

Enforced lubricating---rocking arm is provided with auxiliary lubrication pump; This pump is with lower position fluid inspiration to high-end discharge; With lubricated each gear and bearing; This method is suitable for the large-scale coal winning machine of thick coal-layer mining, also is suitable for having on the low seam mining machinery rocking arm that the auxiliary lubrication pump space is installed;

In actual production; It is bigger to have a large amount of inclination angles, the coal seam of Coal Seam Thickness Change wider range, particularly complicated geological condition (containing dirt band, tomography, iron sulfide tuberculosis etc.) girdle or thinner seam; When exploiting; Above-mentioned the 1st kind of lubricating system, because coal winning machine mostly is the left and right rocking arm of symmetrical configuration, splash lubrication can only satisfy the lubricated of left and right rocking arm one end internal gear and bearing; The other end gear and bearing will be in the oil starvation state for a long time, and rocking arm life-span and reliability can't be guaranteed; Above-mentioned the 2nd kind of lubricating system includes various forms of enforced lubricating structures, but the common problem that exists is; Supplementary lubrication pump requires that enough gear cavity spaces are arranged, and its oil channel structure is very complicated, is unfavorable for operation and maintenance; And its make and user cost also high, particularly on girdle or thinner seam rocker arm of coal mining machine, its rocking arm power constantly increases; Cross the cash ability and strengthen, global reliability is required strictness more, the cooling of useful space inner rocker arm can't be guaranteed; Do not have the space that auxiliary oil pump can be installed more, rocking arm life-span and reliability also can't be guaranteed.

The model utility content:

The utility model technical problem to be solved is: a kind of improved rocker arm of coal mining machine gear cavity segmentation lubricating structure is provided; It can adopt simple splash lubrication structure; Can satisfy the lubricated of each gear of high-power coal cutter rocking arm and bearing again, guarantee the reliability of rocking arm.

The technological scheme that the utility model solves the problems of the technologies described above employing is:

Rocker arm of coal mining machine gear cavity segmentation lubricating structure; Its rocking arm housing constitutes gear cavity; Be equipped with pinion unit in this gear cavity, this pinion unit includes prestage straight-tooth train, intergrade straight-tooth train and planetary gear train, and this prestage straight-tooth train is connected with intergrade straight-tooth train through jack shaft; This intergrade straight-tooth train is connected with planetary gear train through output shaft; The sealing seat that is characterized in jack shaft and corresponding shell is provided with the 1st black box, and it is the 1st chamber and the 2nd chamber that the 1st black box is separated gear cavity, and the 1st chamber and the 2nd chamber are independently seal space.

The utility model utilization sealing is separated into two sections or several sections with gear cavity; Make long-armed generating gear chamber be separated into several short and small cavitys; In these little cavitys, can make full use of high-speed gear rotation and produce the lubricant oil that splashes and satisfy the lubricated of each gear and bearing, guarantee the lubricated of whole rocking arm and cool off; Be the utility model with the lubricated cooling of gear cavity segmentation, avoid the long cavity of rocking arm to stir problems such as heating of oil putting on the gear that high-end oil starvation and low side hydrops bring under the horn shape attitude.

Description of drawings:

Fig. 1 is the utility model rocker arm of coal mining machine gear cavity segmentation lubricating structure schematic representation.

Fig. 2 is that Fig. 1 structure is put on horn shape attitude schematic representation.

Fig. 3 is black box and a housing seal seat enlarged diagram among Fig. 1.

Embodiment:

With reference to Fig. 1, rocker arm of coal mining machine includes motor 1, housing 2, gear cavity 3, cylinder 4, black box 5 and pinion unit 6; Wherein motor 1, housing 2, gear cavity 3, cylinder 4 and pinion unit 6 all and existing technology same or similar; the housing 2 of rocking arm constitutes gear cavity 3; be equipped with pinion unit 6 in this gear cavity 3, and this pinion unit 6 includes prestage straight-tooth train 61, jack shaft 62, intergrade straight-tooth train 63, output shaft 64 and planetary gear train 65; This prestage straight-tooth train 61 is connected with intergrade straight-tooth train 63 through jack shaft 62; It is last gear that the shaft part 621 of jack shaft 62 is installed with prestage straight-tooth train 61; Shaft part 623 is installed with the most previous gear of intergrade straight-tooth train 63 under it, and this jack shaft 62 is supported at both ends in bearing.

The characteristics of the utility model are; As shown in Figure 3; The upper and lower side plate 21 of housing 2, be provided with central diaphragm 22 between 24, be formed with sealing seat 23 in the perforate of the appropriate position of this central diaphragm 22, the endoporus aperture of sealing seat 23 can with the external diameter corresponding matching of the black box of existing product; Jack shaft 62 is provided with sealing convex shoulder 622 in sealing seat 23 positions of corresponding shell 2, the external cylindrical surface external diameter of sealing convex shoulder 622 can with the internal diameter corresponding matching of the black box of existing product; The sealing seat 23 for jack shaft 62 and corresponding shell 2 that the said structure letter is shown is provided with the 1st black box 51; Fig. 1, shown in 3; Because the setting of black box 51; Gear cavity 3 is divided into the 1st chamber 31 and the 2nd chamber 32; Independently seal space of 312 formation one is held from the 1st chamber B of the 1st chamber A of gear cavity 3 rounded ends end 311 to gear cavity 3 nearly jack shafts 62 in the 1st chamber 31, and the volume ratio of the volume in obvious the 1st chamber 31 and gear cavity 3 reduces more greatly, for the gear splash system lubrication provides good condition; Equally; Independently seal space of 322 to the 2nd chamber D end 323 and 33 formation one of planet chamber is held from the 2nd chamber C of gear cavity 3 nearly jack shaft 62 ends in the 2nd chamber 32; The volume ratio of the volume in obvious the 2nd chamber 32 and gear cavity 3 reduces more greatly, is similarly the gear splash system lubrication good condition is provided.

Design by technique scheme; The utility model also can adopt similar structure; The output shaft 64 between intergrade straight-tooth train 63 and the planetary gear train 65 and the sealing seat of corresponding housing 2 are provided with the 2nd black box 52, the 2 black boies 52 separation gear cavities 3 and are the 2nd chamber 32 and planet chamber 33, and be same; This planet chamber 33 also is seal space independently, can further improve the lubricating condition of large-scale rocker arm of coal mining machine.

Black box 5 includes the 1st black box 51 and the 2nd black box 52, and said the 1st, 2 black boies 51,52 all can adopt existing product, seals the TBT-I type like rotary shaft lip seal or axle with the two-way rotation combination of T type.

Claims

1. rocker arm of coal mining machine gear cavity segmentation lubricating structure; the rocking arm housing constitutes gear cavity; be equipped with pinion unit in this gear cavity, and this pinion unit includes prestage straight-tooth train, intergrade straight-tooth train and planetary gear train, and this prestage straight-tooth train is connected with intergrade straight-tooth train through jack shaft; this intergrade straight-tooth train is connected with planetary gear train through output shaft; it is characterized in that: the sealing seat (23) of jack shaft (62) and corresponding shell (2) is provided with the 1st black box (51), it is the 1st chamber (31) and the 2nd chamber (32) that the 1st black box (51) is separated gear cavity (3), the 1st chamber (31) and the 2nd chamber (32) are independently seal space.

2. rocker arm of coal mining machine gear cavity segmentation lubricating structure according to claim 1; It is characterized in that output shaft (64) and the sealing seat of corresponding housing (2) between intergrade straight-tooth train (63) and the planetary gear train (65) are provided with the 2nd black box (52); It is the 2nd chamber (32) and planet chamber (33) that the 2nd black box (52) is separated gear cavity (3), and this planet chamber (33) is seal space independently.

3. rocker arm of coal mining machine gear cavity segmentation lubricating structure according to claim 1 is characterized in that the 1st black box (51) is that rotary shaft lip seal or axle seal TBT-I with the two-way rotation combination of T type.

4. rocker arm of coal mining machine gear cavity segmentation lubricating structure according to claim 2 is characterized in that the 2nd black box (52) is that rotary shaft lip seal or axle seal TBT-I with the two-way rotation combination of T type.