CN218117763U

CN218117763U - Coal mining machine roller with good sealing performance

Info

Publication number: CN218117763U
Application number: CN202222653465.XU
Authority: CN
Inventors: 刘文瑞; 官兵; 管建英
Original assignee: Datong Philips Mining Equipment Mfg Co ltd
Current assignee: Datong Philips Mining Equipment Mfg Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2022-12-23
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a coal-winning machine cylinder that seals well, including casing, square plate, drum shaft, sealed dish, axle sleeve, floating seal and bearing, the drum shaft passes through the bearing and is connected with the casing, sealed dish cover is established on the drum shaft, just be equipped with between sealed dish and the drum shaft the axle sleeve, sealed dish is connected with the casing, and one end with the bearing offsets, the square plate rotates with the drum shaft to be connected, one side intercommunication of bearing has the through-hole, be equipped with first sealing mechanism in the through-hole, be equipped with second sealing mechanism on the outer wall of sealed dish and square plate. The utility model discloses increased the leakproofness of the inside gear oil of bearing, avoided gear oil seepage to go out the bearing and then spill from floating seal, both can avoid floating seal 6 in direct and the coal contact in the pit, can further increase floating seal's leakproofness again, and made things convenient for the dismantlement to the elastic ring, and then made things convenient for the work of refueling to the bearing.

Description

Coal mining machine roller with good sealing performance

Technical Field

The utility model relates to a coal-winning machine cylinder technical field specifically is a well sealed coal-winning machine cylinder.

Background

The coal mining machine is a large complex system integrating machinery, electricity and hydraulic pressure, the working environment is severe, and if a fault occurs, the whole coal mining work is interrupted, so that huge economic loss is caused. The machine is suitable for slowly-inclined thin coal seams and ultra-thin composite coal seam coal mining working faces for common medium and small-sized mines, so that the functions of cutting and coal falling are achieved, the coal mining machine is one of important devices for realizing mechanization and modernization of coal mine production, the mechanical coal mining can reduce physical labor, improve safety and achieve the purposes of high yield, high efficiency and low consumption, and the coal mining machine is divided into a sawing type, a planing type, a drilling type and a milling type. The basic structure of the coal mining machine comprises a walking box, a traction part, a rocker arm and a roller capable of cutting coal, and when the coal mining machine is used for mining coal, the roller rotates to cut the coal.

As shown in fig. 1, a drum part of an existing coal mining machine mainly comprises a square disc 2, a drum shaft 3, a sealing disc 4, a shaft sleeve 5, a bearing 7, a floating seal 6 and a shell 1, wherein the bearing 7 is fixed and sealed by the sealing disc 4 and the floating seal 6, the shaft sleeve 5 is arranged between the sealing disc 4 and the drum shaft 3, the coal mining machine is powered by a motor and is transmitted to the drum shaft 3 through gears at different levels, the drum shaft 3 drives the square disc 2, and a drum is mounted on the square disc 2 to achieve coal mining operation. The bearing 7 of the roller part is positioned in a sealed oil chamber under the action of the sealing disc 4 and the floating seal 6, and the internal gear oil can lubricate and cool the bearing 7.

However, in the existing structure, only the floating seal 6 is adopted, and the floating seal is in a severe coal mining environment without dustproof measures, the floating seal 6 is directly contacted with coal underground, the oil sealing effect of the floating seal 6 is poor, and oil leakage is easy to occur at the position of the floating seal 6.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal-winning machine cylinder that seals well to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a coal-winning machine cylinder that seals well, includes casing, square plate, drum shaft, sealed dish, axle sleeve, floating seal and bearing, the drum shaft passes through the bearing and is connected with the casing, sealed dish cover is established at the drum shaft, just be equipped with between sealed dish and the drum shaft the axle sleeve, sealed dish is connected with the casing, and one end with the bearing offsets, the square plate rotates with the drum shaft to be connected, one side intercommunication of bearing has the through-hole, be equipped with first sealing mechanism in the through-hole, be equipped with second sealing mechanism on the outer wall of sealed dish and square plate.

In a preferred embodiment: the second sealing mechanism comprises an elastic ring movably arranged on the outer wall of the sealing disc and the outer wall of the square disc, two clamping sleeves symmetrically distributed are arranged on the elastic ring, one end of each clamping sleeve is fixedly connected with a fastening nut, fastening bolts are connected with the fastening nuts in internal threads, and first O-shaped sealing rings are fixedly connected onto the inner wall of the elastic ring.

In a preferred embodiment: the outer wall of the elastic ring is fixedly provided with a fixing block, one end of the fixing block is fixedly connected with a pull rope, one end of the pull rope is fixedly connected with the fastening bolt, and the fastening bolt is conveniently connected through the arrangement of the pull rope.

In a preferred embodiment: the first sealing structure comprises a rotating shaft which is rotatably arranged in the through hole, a sealing plate is fixedly connected to the outer wall of the rotating shaft, and the sealing performance of the through hole is improved through the arrangement of the sealing plate.

In a preferred embodiment: be equipped with the sealing rubber piece on the outer wall of closing plate, the junction of pivot and through-hole is equipped with the torsional spring, through the setting of torsional spring, has made things convenient for the restoration of closing plate.

In a preferred embodiment: the inner wall of the square disc is provided with a groove, a second O-shaped sealing ring is arranged in the groove, and the sealing performance between the drum shaft and the square disc is improved through the arrangement of the second O-shaped sealing ring.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model discloses a setting of casing, square plate, drum shaft, sealed dish, axle sleeve, floating seal, bearing, through-hole, pivot and closing plate has increased the leakproofness of the inside gear oil of bearing, avoids the gear oil seepage to go out the bearing and then spill from floating seal, through the setting of second O shape sealing washer, has increased the leakproofness between drum shaft and the square plate again.

2. The utility model discloses a setting of elastic ring, cutting ferrule, fastening nut, fastening bolt, first O shape sealing washer both can avoid floating seal 6 direct and the coal contact in the pit, can further increase floating seal's leakproofness again, and made things convenient for the dismantlement to the elastic ring, and then made things convenient for the refueling work to the bearing, through the setting of fixed block and stay cord again, can avoid fastening bolt to lose when fastening bolt breaks away from fastening nut.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic cross-sectional structural view of a drum of a prior art shearer;

FIG. 2 is a schematic cross-sectional structural view of a shearer drum of the present invention;

fig. 3 is an enlarged schematic view of fig. 2 a according to the present invention;

fig. 4 is a schematic view of the external structure of the shearer drum of the present invention;

fig. 5 is a rear view structural schematic diagram of the elastic ring and the first O-ring of the present invention;

in the figure: 1. a housing; 2. a square plate; 3. a drum shaft; 4. sealing the disc; 5. a shaft sleeve; 6. floating sealing; 7. a bearing; 8. A through hole; 9. an elastic ring; 10. a card sleeve; 11. fastening a nut; 12. fastening a bolt; 13. a first O-ring seal; 14. a fixed block; 15. pulling a rope; 16. a rotating shaft; 17. sealing plates; 18. a second O-ring seal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a coal mining machine roller with good sealing performance comprises a shell 1, a square disc 2, a roller shaft 3, a sealing disc 4, a shaft sleeve 5, a floating seal 6 and a bearing 7, wherein the roller shaft 3 is connected with the shell 1 through the bearing 7, the sealing disc 4 is sleeved on the roller shaft 3, the shaft sleeve 5 is arranged between the sealing disc 4 and the roller shaft 3, the sealing disc 4 is connected with the shell 1, one end of the sealing disc 4 is abutted against the bearing 7, the square disc 2 is rotatably connected with the roller shaft 3, one side of the bearing 7 is communicated with a through hole 8, a first sealing mechanism is arranged in the through hole 8, a second sealing mechanism is arranged on the outer walls of the sealing disc 4 and the square disc 2 and comprises an elastic ring 9 movably arranged on the outer walls of the sealing disc 4 and the square disc 2, two clamping sleeves 10 which are symmetrically distributed are arranged on the elastic ring 9, one end of each clamping sleeve 10 is fixedly connected with a fastening nut 11, the fastening nut 11 is in threaded connection with a fastening bolt 12, a first O-shaped sealing ring 13 is fixedly connected on the inner wall of the elastic ring 9, a fixing block 14 is fixedly arranged on the outer wall of the fixing block, one end of the sealing plate 14 is fixedly connected with a fastening nut 11 through a pull rope, a rotating bolt 16, the rotating shaft 15 is arranged on the outer wall of the sealing plate, the sealing plate 17, the rotating shaft 17 is connected with the rotating shaft 17, the sealing block 16, the rotating block 16 is connected with the sealing block, the rotating block 16, and a second O-shaped sealing ring 18 is arranged in the groove, and the sealing property between the roller shaft 3 and the square disc 2 is improved through the arrangement of the second O-shaped sealing ring 18.

The utility model discloses a theory of operation: during the use, when need refuel bearing 7 inside, gear oil drives closing plate 17 through-hole 8 and rotates, and then make gear oil get into in the bearing 7 through-hole 8, after the oiling is accomplished, closing plate 17 resets under the torsional spring effect, and then accomplish the sealing work to through-hole 8 through the sealing rubber piece, later place elastic ring 9 between square disc 2 and casing 1, the both sides of the inside first O shape sealing washer of elastic ring 9 and the laminating of casing 1 and square disc 2's lateral wall, later make two cutting ferrule 10 hug closely together tightly through fastening nut 11 and fastening bolt 12, and tighten up elastic ring 9, further increase the leakproofness between floating seal 6 and casing 1 this moment, and then further increase the leakproofness of device, through the setting of second O shape sealing washer 18, the leakproofness between drum shaft 3 and square disc 2 has been increased, through elastic ring 9, cutting ferrule 10, fastening nut 11, fastening bolt 12, the setting of first O shape sealing washer 13, both can avoid floating seal 6 directly can contact with the coal in the pit again, further increase the leakproofness of floating seal 6, and convenient to the dismantlement of the elastic ring 7 of the sealing of the convenience.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a coal-winning machine cylinder that seals well, includes casing (1), square plate (2), drum shaft (3), sealed dish (4), axle sleeve (5), floating seal (6) and bearing (7), drum shaft (3) are connected with casing (1) through bearing (7), sealed dish (4) cover is established on drum shaft (3), just be equipped with between sealed dish (4) and drum shaft (3) axle sleeve (5), sealed dish (4) are connected with casing (1), and one end with bearing (7) offset, square plate (2) rotate with drum shaft (3) to be connected its characterized in that: one side intercommunication of bearing (7) has through-hole (8), be equipped with first sealing mechanism in through-hole (8), be equipped with second sealing mechanism on the outer wall of sealed dish (4) and square dish (2).

2. The well-sealed shearer drum of claim 1, wherein: second sealing mechanism locates elastic ring (9) on sealed dish (4) and square plate (2) outer wall including the activity, be equipped with cutting ferrule (10) of two symmetric distributions on elastic ring (9), two the equal fixedly connected with fastening nut (11) of one end of cutting ferrule (10), fastening nut (11) female connection has fastening bolt (12), the first O shape sealing washer (13) of fixedly connected with on the inner wall of elastic ring (9).

3. A well-sealed shearer drum according to claim 2, wherein: the outer wall of the elastic ring (9) is fixedly provided with a fixing block (14), one end of the fixing block (14) is fixedly connected with a pull rope (15), and one end of the pull rope (15) is fixedly connected with a fastening bolt (12).

4. The well-sealed shearer drum of claim 1, wherein: the first sealing structure comprises a rotating shaft (16) which is rotatably arranged in the through hole (8), and a sealing plate (17) is fixedly connected to the outer wall of the rotating shaft (16).

5. The well-sealed shearer drum of claim 4, wherein: the outer wall of the sealing plate (17) is provided with a sealing rubber block, and the joint of the rotating shaft (16) and the through hole (8) is provided with a torsion spring.

6. The well-sealed shearer drum according to claim 1, wherein: the inner wall of the square disc (2) is provided with a groove, and a second O-shaped sealing ring (18) is arranged in the groove.