CN110185770B

CN110185770B - Gear box structure of coal mining machine

Info

Publication number: CN110185770B
Application number: CN201910470305.1A
Authority: CN
Inventors: 朱继国
Original assignee: Hangzhou Hengnie Machinery Co ltd
Current assignee: Hangzhou Hengnie Machinery Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2022-06-07
Anticipated expiration: 2039-05-31
Also published as: CN110185770A

Abstract

A gear box structure of a coal mining machine effectively solves the problems that the conventional gear box of the coal mining machine is unreasonable in oil injection and maintenance structure, and is not beneficial to maintenance of the gear box, so that the normal operation of the gear box is influenced; the oil injection device comprises a box body, wherein an input shaft and an output shaft respectively extend out of the two sides in the box body, a plurality of transmission gears are connected between the input shaft and the output shaft, an overhaul box is arranged in the box body, a plurality of oil injection pipes are arranged in the overhaul box, and an oil conveying pipe movably connected with the oil injection pipes is arranged in the box body; the key is inserted into the lockhole to drive the first lock cylinder to rotate, and the second key is inserted into the lockhole to drive the first lock cylinder and the second lock cylinder to rotate simultaneously; the invention has simple operation and convenient use, different keys realize different functions, and the gear box is conveniently and reasonably used.

Description

Gear box structure of coal mining machine

Technical Field

The invention relates to the technical field of coal mining equipment, in particular to a gear box structure of a coal mining machine.

Background

In the coal mining process, a coal mining machine is required to be used for mining, a power source is inevitably arranged in all running machines, the power of the coal mining machine is sourced from an internal fuel oil machine, the fuel oil machine outputs the power, then the power is transmitted to a working mechanism of the coal mining machine through a gear box, and as the coal mining work is continuously carried out, oil injection and lubrication are continuously carried out in the gear box to prevent the abrasion of the gear box and ensure the smooth transmission of the power.

Moreover, because the coal mining machine cannot perform speed change operation in the using process, the requirement of speed change is usually realized by replacing the gear pair, so that the gear box of the coal mining machine can be opened, but the replacement of the gear pair of the coal mining machine cannot be performed by every worker, and is required to be completed by professional technicians, but in the using process of the coal mining machine, common workers are required to perform oil injection lubrication, so that the design of a reasonable gear box is necessary.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention aims to provide a gear box structure of a coal mining machine, which effectively solves the problems that the oil injection and maintenance structure on the gear box of the prior coal mining machine is unreasonable, and the gear box is not easy to maintain, so that the normal operation of the gear box is influenced.

The technical scheme for solving the problems is that the gear box structure of the coal mining machine comprises a box body, an input shaft and an output shaft respectively extend out of two sides in the box body, a plurality of transmission gears are connected between the input shaft and the output shaft, an overhaul box is arranged in the box body, a plurality of oil injection pipes are arranged in the overhaul box, an oil delivery pipe movably connected with the oil injection pipes is arranged in the box body, when an oil conveying pipe is connected with an oil injection pipe, an overhaul box is fixed in a box body, when the oil conveying pipe is disconnected with the oil injection pipe, the overhaul box is separated from the box body, a cover plate is detachably arranged on the overhaul box, a lock hole positioned on one side of the overhaul box is arranged on the box body, a first lock cylinder and a second lock cylinder which are coaxial with the lock hole are arranged in the box body, the first lock cylinder controls the opening of the cover plate, a first gear is coaxially fixed on the second lock cylinder, a first rack and a second rack are respectively meshed with the two sides of the first gear, and the first rack and the second rack respectively control the connection of the oil conveying pipe and the oil injection pipe on the two sides of the overhaul box; the key-free lock also comprises an oil injection key and an overhaul key, wherein the oil injection key is inserted into the lock hole to drive the first lock cylinder to rotate, and the second key is inserted into the lock hole to drive the first lock cylinder and the second lock cylinder to rotate simultaneously.

The invention has simple operation and convenient use, different keys realize different functions, and the gear box is convenient to be reasonably used.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a front sectional view of the present invention.

FIG. 3 is a schematic cross-sectional view of A-A of FIG. 1 according to the present invention.

Fig. 4 is an enlarged view of portion B of fig. 3 according to the present invention.

FIG. 5 is a schematic cross-sectional view of C-C of FIG. 3 of the present invention.

FIG. 6 is an enlarged view of section E of FIG. 5 according to the present invention.

Fig. 7 is a schematic cross-sectional view of D-D of fig. 4 in accordance with the present invention.

Fig. 8 is a front sectional view of the cover plate in the present invention.

Fig. 9 is an enlarged view of portion F of fig. 8 according to the present invention.

Fig. 10 is a schematic cross-sectional view of an oiling key of the present invention.

Fig. 11 is a schematic cross-sectional view of an access key of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to fig. 1 to 11.

As can be seen from the drawings 1 to 11, the gear box structure of the coal mining machine comprises a box body 1, an input shaft 2 and an output shaft 3 respectively extend out of two sides in the box body 1, a plurality of transmission gears 4 are connected between the input shaft 2 and the output shaft 3, an overhaul box 5 is arranged in the box body 1, a plurality of oil injection pipes 6 are arranged in the overhaul box 5, an oil delivery pipe 7 movably connected with the oil injection pipes 6 is arranged in the box body 1, when the oil delivery pipe 7 is connected with the oil injection pipes 6, the overhaul box 5 is fixed in the box body 1, when the oil delivery pipe 7 is disconnected with the oil injection pipes 6, the overhaul box 5 is separated from the box body 1, a cover plate 8 is detachably arranged on the overhaul box 5, a lock hole 9 positioned on one side of the overhaul box 5 is arranged on the box body 1, a first lock cylinder 10 and a second lock cylinder 11 which are coaxial with the lock hole 9 are arranged in the box body 1, the first lock cylinder 10 controls the opening of the cover plate 8, a first gear 12 is coaxially fixed on the second lock cylinder 11, a first rack 13 and a second rack 14 are respectively meshed with two sides of the first gear 12, and the first rack 13 and the second rack 14 respectively control the connection between the oil delivery pipe 7 and the oil injection pipe 6 on two sides of the maintenance box 5; the lock further comprises an oil injection key 15 and an overhaul key 16, the oil injection key 15 is inserted into the lock hole 9 to drive the first lock cylinder 10 to rotate, and the second key is inserted into the lock hole 9 to drive the first lock cylinder 10 and the second lock cylinder 11 to rotate simultaneously.

The end part of the oil filling pipe 6 is provided with an air bag 17, and the oil filling pipe 6 is provided with an oil filling port 18.

The flexible connecting pipe 19 that is provided with of defeated oil pipe 7 tip, 19 one end of connecting pipe insert constitute defeated oil pipe 7 and the intercommunication of notes oil pipe 6 in annotating

oil pipe

6, 19 other ends of connecting pipe are equipped with the driving lever 20 that stretches out defeated oil pipe 7 outer wall, driving lever 20 connects first rack 13 or second rack 14 through connecting rod 21.

Box 1 on be equipped with locating

hole

22, 8 one sides of apron be equipped with locating hole 22 complex locating

piece

23, 8 opposite sides of apron are equipped with a plurality of fixed orificess 24, be equipped with in the maintenance case 5 a plurality ofly with fixed orifices 24 complex fixed block 25 one by one, be equipped with the shifting block 26 that is located fixed block 25 one side in the maintenance case 5, the cooperation of shifting block 26 control fixed block 25 and fixed orifices 24, shifting block 26 fixed connection is located the pinion rack 27 in the maintenance case 5 outside, the first lock core 10 outside is equipped with the second gear with pinion rack 27 meshing.

The inner end of the shifting block 26 is movably connected with one end of a lever 28, the middle of the lever 28 is fixed in the maintenance box 5 in a rotating mode, the other end of the lever 28 is fixed on the inner wall of the maintenance box 5 through a first spring 29, the shifting block 26 is located on one side of the lever 28, and the shifting block 26 moves to push the lever 28 to enable the fixing block 25 to be separated from the fixing hole 24.

The lever 28 is provided with a long round hole 30, and the fixing block 25 is provided with a fixing pin 31 inserted into the long round hole 30.

The lock hole 9 is provided with a lock door 32, one end of the lock door 32 is hinged on the box body 1, the other end of the lock door is provided with a pin hole 33, the box body 1 is provided with a bolt 34 inserted into the pin hole 33, and the bolt 34 is fixed in the box body 1 through a second spring 35 and is pushed towards the direction close to the pin hole 33.

The lock hole 9 is internally provided with a lock rod 36, the oil injection key 15 and the overhaul key 16 are internally provided with a first cavity 37 and a second cavity 38 respectively, the first lock core 10 and the second lock core 11 are respectively provided with a first operation hole 39 and a second operation hole 40 which are positioned at the same side, the outer sides of the oil injection key 15 and the overhaul key 16 are respectively provided with an operation block 41, the oil injection key 15 is inserted into the lock hole 9, the operation block 41 is matched with the first operation hole 39, and the overhaul key 16 is inserted into the lock hole 9, the operation block 41 is matched with the first operation hole 39 and the second operation hole 40 is matched.

The depth of the first cavity 37 is smaller than the depth of the second cavity 38.

The maintenance box 5 is fixed in the gear box through a fixing screw.

When the invention is used, the water-saving agent is added,

before the coal mining machine goes off a mine, firstly, a proper transmission gear 4 is selected according to a mining object, at the moment, the bolt 34 is shifted to be separated from the pin hole 33, the lock door 32 is rotated to expose the lock hole 9, the maintenance key 16 is inserted into the lock hole 9, the maintenance key 16 is rotated to drive the first lock cylinder 10 and the second lock cylinder 11 to simultaneously rotate, the first gear 12 and the second lock cylinder 11 coaxially rotate to drive the first rack 13 and the second rack 14 to move, the deflector rod 20 connected with the first rack 13 and the second rack 14 moves towards the direction far away from the side wall of the maintenance box 5, the deflector rod 20 drives the connecting pipe 19 to move and separate from the oil filling pipe 6, so that the oil filling pipe 6 and the oil conveying pipe 7 can freely move, at the moment, the fixing screw on the maintenance box 5 is dismounted, the maintenance box 5 can be taken out from the box body 1, the transmission gear 4 is convenient to be replaced, after the replacement, the maintenance box 5 is put into the box body 1 and fixed by the fixing screw, the service key 16 is turned in the reverse direction so that the connection pipe 19 is re-entered into the filler pipe 6 to fix the position of the service box 5, and finally the service key 16 is pulled out to cover the lock door 32.

In the process of using the maintenance key 16 to unlock the maintenance box 5, when the maintenance key 16 is rotated, the first lock cylinder 10 and the second lock cylinder 11 can be rotated simultaneously, the first lock cylinder 10 is rotated to enable the toothed plate 27 meshed with the first lock cylinder to move in the maintenance box 5, the toothed plate 27 is moved to enable the shifting block 26 to move, the shifting block 26 moves to push the lever 28, so that the fixing block 25 is separated from the fixing hole 24, at the moment, the cover plate 8 can be taken down from the upper part of the maintenance box 5, so that the maintenance box 5 can be taken out from the inside of the gear box by using the maintenance key 16, the cover plate 8 can be opened from the upper part of the maintenance box 5, the box body 1 and the maintenance box 5 are completely opened, and the next operation is convenient to be carried out.

The rotation of the first lock cylinder 10 drives the toothed plate 27 to move in the maintenance box 5, the shifting block 26 connected with the toothed plate 27 moves to push one end of the lever 28, and the other end of the lever 28 pulls the fixed block 25 out of the fixed hole 24, so that the cover plate 8 is in a free state and can be opened; the rotation of second lock core 11 drives the rotation of first gear 12 to make first rack 13 and second rack 14 drive connecting rod 21 and remove to opposite direction outside maintenance box 5, driving lever 20 who is connected with connecting rod 21 removes, drive connecting pipe 19 and remove in defeated oil pipe 7, break away from notes oil pipe 6, make notes oil pipe 6 and defeated oil pipe 7 break away from the connection completely, after the set screw on maintenance box 5 demolishs like this, maintenance box 5 is in complete free state, can follow and take out in the box 1, be convenient for change drive gear 4 or maintain.

After long-time work, the transmission gear 4 needs to be filled with oil, at the moment, the bolt 34 is shifted to be separated from the pin hole 33, the lock door 32 is rotated to expose the lock hole 9, the oil filling key 15 is inserted into the lock hole 9, the oil filling key 15 is rotated to drive the first lock core 10 to rotate, the first gear 12 rotates to enable the toothed plate 27 to move in the maintenance box 5, the shifting block 26 moves due to the movement of the first toothed plate 27, the shifting block 26 moves to push the lever 28 to enable the fixed block 25 to be separated from the fixed hole 24, at the moment, the cover plate 8 can be taken down from the upper part of the maintenance box 5, so that the oil filling operation is realized, when oil is filled, the lubricating oil is filled into the oil filling opening 18, then the air bag 17 is compressed, the lubricating oil enters the transmission gear 4 needing to be lubricated under the action of air pressure, the cover plate 8 is reset after the oil filling is finished, then the oil filling key 15 is reversely rotated to enable the cover plate 8 to be locked on the maintenance box 5, the oil key 15 is then withdrawn and the lock door 32 is closed.

In the invention, two kinds of keys are provided, one kind of key is an oiling key 15, the oiling key 15 can be placed in a cab of the coal mining machine or handed to a driver for use, so that oiling operation on the gearbox can be conveniently carried out on the way of the working process, the other kind of overhaul key 16 is handed to an on-ground maintainer for use, the transmission gear 4 is replaced or used for maintenance before the overhaul, because the oiling key 15 cannot take down the overhaul box 5, the condition that the transmission gear 4 is exposed cannot occur when oiling is carried out under the mine, sundries such as coal dust cannot enter the gearbox to influence the transmission gear 4, the integrity of the gearbox cannot be damaged due to misoperation of non-professionals, and professionals using the overhaul key 16 can complete the whole operation on the gearbox.

During oil injection, lubricating oil is injected into the oil injection port 18, then the air bag 17 is used for conveying the lubricating oil to the transmission gear 4, the oil injection pipe 6 and the oil conveying pipe 7 are in a sealed state after connection, the tail end of the oil conveying pipe 7 is located above the transmission gear 4, the lubricating oil is conveyed to the transmission gear 4 along the oil conveying pipe 7 under the action of the air bag 17 and finally drops on the transmission gear 4, and compared with the prior art, the natural conveying is quicker by means of the gravity of the lubricating oil.

After using oiling key 15 to open apron 8, although the set screw of maintenance case 5 exposes, demolish down set screw after, because the connection of oiling pipe 6 and defeated oil pipe 7, maintenance case 5 can not take off, can avoid non professional to the random change of gear box like this, avoids taking place dangerous accident, also can not expose drive gear 4 in the environment of the ore deposit comparatively bad for influence its transmission in the dust gets into the gear.

One end of the lever 28 is connected with a fixing pin 31 on the fixing block 25 through a long circular hole 30 in a matched mode, so that the lever 28 can be always connected with the fixing block 25 in the rotating process without influencing the stretching and retracting of the fixing block 25, and after the shifting block 26 is reset, the first spring 29 pushes the lever 28 to reset, so that the fixing block 25 is inserted into the fixing hole 24 again, and the position of the cover plate 8 is fixed.

In order to prevent pulverized coal and the like from entering the lock hole 9, a lock door 32 is arranged outside the lock hole 9, the lock door 32 is rotatably covered on the lock hole 9, and the movable end is fixed by a bolt 34, so that the lock door 32 is convenient to open and close.

The lock rod 36 is arranged in the center of the lock hole 9, the first cavity 37 and the second cavity 38 inside the oiling key 15 and the maintenance key 16 are matched with the lock rod 36, the depth of the first cavity 37 is smaller than that of the second cavity 38, when the two keys are respectively inserted into the lock hole 9, the operation block 41 on the oiling key 15 cannot touch the second operation hole 40 on the second lock cylinder 11 and can only be matched with the first operation hole 39 on the first lock cylinder 10, so that the first lock cylinder 10 rotates, that is, the oiling key 15 can only control the opening of the cover plate 8 and cannot control the removal of the maintenance box 5, and the operation block 41 on the maintenance key 16 can be simultaneously matched with the first operation hole 39 and the second operation hole 40, so that the first lock cylinder 10 and the second lock cylinder 11 can simultaneously rotate, that the maintenance key 16 simultaneously realizes the opening of the cover plate 8 and the removal of the maintenance box 5.

In order to make maintenance case 5 fixed more stable, after maintenance case 5 is fixed in the gear box through set screw, the notes oil pipe 6 of maintenance case 5 both sides all is connected with defeated oil pipe 7, after having demolishd set screw like this, maintenance case 5 both sides are still in fixed state, keep maintenance case 5's stability, for realizing both sides notes oil pipe 6 and defeated oil pipe 7 controllable connection, maintenance case 5 both sides all are provided with connecting rod 21 and are connected with first rack 13 or second rack 14 respectively, driving lever 20 of both sides can the synchronous motion when rotating maintenance key 16 like this, connect notes oil pipe 6 and defeated oil pipe 7 or while disconnection simultaneously, in order to make things convenient for demolishment and fixed of maintenance case 5.

For making the apron 8 fixed more firm, apron 8 one side all is equipped with locating piece 23 and the cooperation of locating hole 22 on the box 1, the opposite side is equipped with fixed orifices 24, be equipped with the fixed block 25 that corresponds with fixed orifices 24 on the maintenance case 5, the inside pinion rack 27 that is equipped with control fixed block 25 of maintenance case 5, when rotating oiling key 15 or maintenance key 16 like this, pinion rack 27 removes the fixed block 25 that makes apron 8 and breaks away from fixed orifices 24 simultaneously, make things convenient for opening and closing of apron 8.

Compared with the prior art, the invention has the following beneficial effects: the conventional oil injection port 18 is arranged inside the gearbox to avoid being blocked by the pulverized coal at the outside; the lubricating oil after being injected is pushed by the air bag 17 to quickly reach the position needing oil injection; the maintenance opening and the oil filling opening 18 are combined together, so that the number of holes formed in the outer portion of the gearbox is reduced, and the sealing performance of the gearbox is improved; different keys are used for realizing different operations, so that the gear box is prevented from being damaged by professional personnel; the operation is simple, the rapid oil injection and the operation of replacing the transmission gear 4 are realized, and the efficiency is improved.

Claims

1. A gear box structure of a coal mining machine comprises a box body (1), an input shaft (2) and an output shaft (3) respectively extend out of two sides in the box body (1), and a plurality of transmission gears (4) are connected between the input shaft (2) and the output shaft (3), and is characterized in that an overhaul box (5) is arranged in the box body (1), a plurality of oil injection pipes (6) are arranged in the overhaul box (5), an oil delivery pipe (7) movably connected with the oil injection pipes (6) is arranged in the box body (1), when the oil delivery pipe (7) is connected with the oil injection pipes (6), the overhaul box (5) is fixed in the box body (1), when the oil delivery pipe (7) is disconnected with the oil injection pipes (6), the overhaul box (5) is separated from the box body (1), a cover plate (8) is detachably arranged on the overhaul box (5), a lock hole (9) positioned on one side of the overhaul box (5) is arranged on the box body (1), a first lock cylinder (10) and a second lock cylinder (11) which are coaxial with the lock hole (9) are arranged in the box body (1), the first lock cylinder (10) controls the opening of the cover plate (8), a first gear (12) is coaxially fixed on the second lock cylinder (11), a first rack (13) and a second rack (14) are respectively meshed with the two sides of the first gear (12), and the first rack (13) and the second rack (14) respectively control the connection of an oil conveying pipe (7) and an oil filling pipe (6) on the two sides of the maintenance box (5); the automatic oil injection lock further comprises an oil injection key (15) and an overhaul key (16), wherein the oil injection key (15) is inserted into the lock hole (9) to drive the first lock cylinder (10) to rotate, and the second key is inserted into the lock hole (9) to drive the first lock cylinder (10) and the second lock cylinder (11) to rotate simultaneously;

lockhole (9) in be provided with locking lever (36), be equipped with first cavity (37) and second cavity (38) in oiling key (15) and maintenance key (16) respectively, be equipped with first handle hole (39) and second handle hole (40) that are located the homonymy on first lock core (10) and second lock core (11) respectively, oiling key (15) and maintenance key (16) outside all are equipped with operation piece (41), operation piece (41) and first handle hole (39) cooperation in oiling key (15) insert lockhole (9), maintenance key (16) insert lockhole (9) interior operation piece (41) and first handle hole (39) and then second handle hole (40) all produce the cooperation.

2. The gear box structure of the coal mining machine according to claim 1, characterized in that an air bag (17) is arranged at the end part of the oil filling pipe (6), and an oil filling opening (18) is arranged on the oil filling pipe (6).

3. The gear box structure of the coal mining machine according to claim 1, characterized in that a connecting pipe (19) is telescopically arranged at the end part of the oil delivery pipe (7), one end of the connecting pipe (19) is inserted into the oil injection pipe (6) to form the communication between the oil delivery pipe (7) and the oil injection pipe (6), a deflector rod (20) extending out of the outer wall of the oil delivery pipe (7) is arranged at the other end of the connecting pipe (19), and the deflector rod (20) is connected with the first rack (13) or the second rack (14) through a connecting rod (21).

4. The gear box structure of the coal mining machine according to claim 1, wherein the box body (1) is provided with a positioning hole (22), one side of the cover plate (8) is provided with a positioning block (23) matched with the positioning hole (22), the other side of the cover plate (8) is provided with a plurality of fixing holes (24), a plurality of fixing blocks (25) matched with the fixing holes (24) one by one are arranged in the maintenance box (5), a shifting block (26) located on one side of the fixing block (25) is arranged in the maintenance box (5), the shifting block (26) controls the matching of the fixing block (25) and the fixing holes (24), the shifting block (26) is fixedly connected with a toothed plate (27) located on the outer side of the maintenance box (5), and a second gear meshed with the toothed plate (27) is arranged on the outer side of the first lock cylinder (10).

5. The gear box structure of the coal mining machine according to claim 4, characterized in that a lever (28) is arranged in the maintenance box (5), the inner end of a shifting block (26) is movably connected with one end of the lever (28), the middle of the lever (28) is rotatably fixed in the maintenance box (5), the other end of the lever (28) is fixed on the inner wall of the maintenance box (5) through a first spring (29), the shifting block (26) is positioned on one side of the lever (28), and the shifting block (26) moves to push the lever (28) to enable the fixing block (25) to be separated from the fixing hole (24).

6. The gear box structure of the coal mining machine according to claim 5, characterized in that the lever (28) is provided with a long round hole (30), and the fixing block (25) is provided with a fixing pin (31) inserted into the long round hole (30).

7. The gear box structure of the coal mining machine according to claim 1, characterized in that the lock hole (9) is provided with a lock door (32), one end of the lock door (32) is hinged on the box body (1), the other end of the lock door is provided with a pin hole (33), the box body (1) is provided with a bolt (34) inserted into the pin hole (33), and the bolt (34) is fixed in the box body (1) through a second spring (35) and is pushed towards the direction close to the pin hole (33).

8. The shearer gearbox structure according to claim 1, wherein the depth of the first cavity (37) is smaller than the depth of the second cavity (38).

9. The shearer gearbox structure according to claim 1, characterized in that the service box (5) is fixed in the box body (1) by fixing screws.