CN209892215U - Main driving gear box of pipe-jacking tunneling machine - Google Patents

Abstract

The utility model belongs to the technical field of non-excavation engineering technology and specifically relates to a pipe jacking entry driving machine owner drive gear case, which comprises a main shaft, through spline fixedly connected with gear wheel on the main shaft, the outside meshing of gear wheel is connected with a plurality of input shaft, the outside of every input shaft is the fixed box that is equipped with all, equal fixedly connected with case lid on every box, equal bolted connection has planetary reducer on every case lid, the one end of every input shaft is all fixed on the box, the equal fixedly connected with bearing housing in one side of box is kept away from to every input shaft, the equal bolted connection in one side of keeping away from planetary reducer on every box has the mud closing cap, lie in one side fixedly connected with cutter head cover of mud closing cap on the main shaft, the fixed sealed axle sleeve that is equipped with in one side of cutter head cover on the main shaft, the one end welding that the main shaft was kept away from to the main shaft has the center. The utility model discloses simple structure is worth promoting.

Description

Main driving gear box of pipe-jacking tunneling machine

Technical Field

The utility model relates to a non-excavation engineering technical field especially relates to a pipe jacking tunnelling owner drive gear case.

Background

The pipe-jacking construction is a construction method of underground pipelines developed after shield construction, does not need to excavate a surface layer, and can pass through highways, railways, rivers, ground buildings, underground structures, various underground pipelines and the like. The trenchless engineering technology thoroughly solves the problems of damage to urban buildings, road traffic blockage and the like in pipeline embedding construction, and has obvious advantages in soil stabilization and environmental protection. This is very important for cities with heavy traffic, dense population, numerous ground buildings and complex underground pipelines, which will create a clean, comfortable and beautiful environment for the cities. The trenchless technology has the comprehensive functions of economy, high efficiency and environmental protection, and is widely used for trenchless laying of various pipelines such as urban underground water supply and drainage pipelines, natural gas and petroleum pipelines, communication cables and the like.

Because the space of push bench is limited, need use the drive speed reducer that the volume is less, in addition, in order to make the dismouting maintenance more convenient in narrow and small space, also can only adopt the speed reducer that the quality is lighter, in narrow and small space in addition, often also have operating personnel to work in the inside, if the speed reducer noise too big also can influence personnel's health, intercommunication information and mechanical normal work.

When the pipe-jacking tunneling machine works, muddy water sand stones can irregularly splash everywhere, the main shaft of the gear box is in direct contact with silt, and the gear box is reliably sealed, so that the muddy water sand stones can be effectively prevented from entering the shell of the gear box, and the service life of the gear box is effectively prolonged.

The existing structure has the defects of large volume, high noise, unreliable sealing, inconvenience in maintenance and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of high noise, unreliable sealing and inconvenient maintenance in the prior art and providing a main driving gear box of the pipe-jacking tunneling machine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a main driving gear box of a pipe jacking tunneling machine is designed, and comprises a main shaft, wherein a large gear is fixedly connected onto the main shaft through a spline, the outer side of the large gear is connected with a plurality of input shafts through gear meshing, a box body is fixedly arranged on the outer side of each input shaft, a box cover is fixedly connected onto each box body, a planetary reducer is bolted onto each box cover, one end of each input shaft is fixed onto the box body, one side, away from the box body, of each input shaft is fixedly connected with a bearing sleeve, each bearing sleeve is fixed onto the box cover through a bolt, one end, away from the box body, of each input shaft is fixedly connected with the planetary reducer, one side, away from the planetary reducer, of each box body is bolted with a mud sealing cover, and one side, located on the main shaft, of the mud sealing cover is fixedly connected with a cutter head sleeve, the cutter head is characterized in that a sealing shaft sleeve is fixedly arranged on one side of the cutter head sleeve and penetrates through the main shaft, a plurality of first sealing rings are arranged between the sealing shaft sleeve and the mud sealing cover, the main shaft is far away from a central pipe welded to one end of the cutter head sleeve, a sealing small shaft is arranged on the outer side of the central pipe, one end of the main shaft is welded to the sealing small shaft, the central pipe is far away from the sealing small shaft, a sealing cover fixedly connected to one side of the central pipe is far away from the sealing small shaft, and a second sealing ring is arranged between the sealing small shaft and the sealing small shaft.

Preferably, the first sealing ring is provided with five layers.

Preferably, three layers of labyrinth grooves are formed between the cutter head sleeve and the end face of the mud seal cover.

Preferably, the central tube, the main shaft and the small sealing shaft are of an integrated structure.

The utility model provides a pair of pipe jacking tunnelling owner driving gear case, beneficial effect lies in: the utility model discloses a main shaft blade disc system of direct drive pipe pushing jack has compact structure, and is small, light in weight, output torque are big, low noise, sealed reliable, dismouting easy maintenance characteristics etc.

Drawings

Fig. 1 is a schematic structural view of a main drive gear box of a pipe-jacking tunneling machine provided by the utility model;

fig. 2 is the utility model provides a side view structure schematic diagram of pipe jacking tunnelling owner's drive gear case.

In the figure: the device comprises a planetary reducer 1, a box cover 2, a bearing sleeve 3, a box body 4, an input shaft 5, a large gear 6, a mud seal cover 7, a first seal ring 8, a seal shaft sleeve 9, a cutter head seat 10, a main shaft 11, a seal cover 12, a seal small shaft 13, a central pipe 14 and a second seal ring 15.

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.

Referring to fig. 1-2, a pipe jacking tunneling machine main driving gear box comprises a main shaft 11, a large gear 6 is fixedly connected to the main shaft 11 through a spline, the large gear 6 is connected with an input shaft 5 in an acting manner, the outer side of the large gear 6 is connected with a plurality of input shafts 5 through gear meshing, the input shafts 5 are used for driving the main shaft 11 to rotate, a box body 4 is fixedly arranged on the outer side of each input shaft 5, a box cover 2 is fixedly connected to each box body 4, a planetary reducer 1 is connected to each box cover 2 through bolts, one end of each input shaft 5 is fixed to each box body 4, a bearing sleeve 3 is fixedly connected to one side of each input shaft 5 far away from each box body 4, the input shaft 5 is fixed to each box cover 5 through bolts, one end of each input shaft 5 far away from each box body 4 is fixedly connected with the planetary reducer 1, when the main driving gear box needs to maintain, repair, inspect and replace the input shaft gear and the bearing in the pipe jacking machine, the bearing sleeve 3 and the input shaft 5 assembly can be directly disassembled and repaired and replaced after the mounting bolt of the bearing sleeve 3 is loosened, the gear box does not need to be disassembled, and therefore convenience in disassembly, assembly and maintenance is achieved.

A mud sealing cover 7 is connected to one side of each box body 4 far away from the planetary reducer 1 through bolts, a cutter head sleeve 10 is fixedly connected to one side, located on the mud sealing cover 7, of the main shaft 11, the cutter head sleeve 10 is used for realizing low-rotation-speed and high-torque transmission and driving a pipe jacking machine cutter head system, a sealing shaft sleeve 9 is fixedly arranged on one side, located on the cutter head sleeve 10, of the main shaft 11, the sealing shaft sleeve 9 penetrates through the main shaft 11, five layers of first sealing rings 8 are arranged between the sealing shaft sleeve 9 and the mud sealing cover 7, lubricating grease is uninterruptedly injected between the last two layers of first sealing rings through a grease pump through the first sealing rings 8, three layers of labyrinth grooves are arranged between the cutter head sleeve 10 and the end face of the mud sealing cover 7, muddy water sand outside the gear box needs to firstly pass through the three layers of labyrinth grooves and then pass through the five layers of first sealing rings, when the sealing shaft sleeve 9 is worn and the sealing is failed, the sealing shaft sleeve 9 can be directly replaced, the main shaft 11 cannot be affected, the maintenance cost is reduced, and the maintenance convenience is improved.

The welding of the one end of main shaft 11 far away from disk sleeve 10 has center tube 14, the outside of center tube 14 is equipped with sealed staff 13, the one end welding of center tube 14 far away from main shaft 11 is on sealed staff 13, center tube 14, main shaft 11 and sealed staff 13 structure as an organic whole, thereby constitute two slip casting passageways, logical high pressure water when supplying push bench construction, sealed little 13 keeps away from one side fixedly connected with sealed lid 12 of center tube 14, sealed lid 12 and sealed staff 13 between the extension degree direction be equipped with two second sealing washer 15, two water route complementary interference is guaranteed to two sealing washer 15, when sealed staff 13 wearing and tearing sealed the inefficacy, directly change sealed staff 13 can, can not cause the influence to main shaft 11, in order to reduce cost of maintenance, improve the convenience.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (4)

1. A pipe jacking tunneling machine main driving gear box comprises a main shaft (11) and is characterized in that a large gear (6) is fixedly connected onto the main shaft (11) through a spline, the outer side of the large gear (6) is connected with a plurality of input shafts (5) through gear meshing, the outer side of each input shaft (5) is fixedly provided with a box body (4), each box body (4) is fixedly connected with a box cover (2), each box cover (2) is connected with a planetary reducer (1) through bolts, one end of each input shaft (5) is fixed onto the box body (4), one side, far away from the box body (4), of each input shaft (5) is fixedly connected with a bearing sleeve (3), each bearing sleeve (3) is fixed onto the box cover (2) through bolts, one end, far away from the box body (4), of each input shaft (5) is fixedly connected with the planetary reducer (1), each box body (4) is connected with a mud sealing cover (7) through a bolt on one side far away from the planetary speed reducer (1), a cutter head sleeve (10) is fixedly connected to one side of the mud sealing cover (7) on the main shaft (11), a sealing shaft sleeve (9) is fixedly arranged on one side of the cutter head sleeve (10) on the main shaft (11), the main shaft (11) penetrates through the sealing shaft sleeve (9), a plurality of first sealing rings (8) are arranged between the sealing shaft sleeve (9) and the mud sealing cover (7), a central pipe (14) is welded at one end, far away from the cutter head sleeve (10), of the main shaft (11), a sealing small shaft (13) is arranged on the outer side of the central pipe (14), one end, far away from the main shaft (11), of the central pipe (14) is welded on the sealing small shaft (13), and a sealing cover (12) is fixedly connected to one side, far away from the central pipe (14), of the sealing small shaft (, and a second sealing ring (15) is arranged between the sealing cover (12) and the small sealing shaft (13).

2. A pipe jacking machine main drive gearbox according to claim 1, characterized in that the first sealing ring (8) is provided with five layers.

3. A pipe jacking machine main drive gearbox according to claim 1, characterized in that three layers of labyrinth grooves are arranged between the cutter head sleeve (10) and the end face of the mud cover (7).

4. A pipe jacking machine main drive gearbox according to claim 1, wherein said central tube (14), said main shaft (11) and said small sealing shaft (13) are of an integral structure.

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