CN210768787U

CN210768787U - Cutter head driving assembly of push bench

Info

Publication number: CN210768787U
Application number: CN201921125031.4U
Authority: CN
Inventors: 何奇; 王汶文; 李广彬
Original assignee: Cssc Heavy Equipment Co ltd
Current assignee: Cssc Heavy Equipment Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-06-16
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a pipe push bench blade disc drive assembly, including motor power motor fixes on the motor mount pad of box at the back, the interior keyway and the butt joint of pinion keyway of motor power indoor unit, the pinion fastening install in the front the box with on the box at the back, through pinion and gear wheel involute gear drive gear wheel are rotatory, the interior keyway of gear wheel is fixed with the keyway meshing of main shaft, and then the drive main shaft is rotatory, main shaft fixed mounting in on the back box rear end, have compact structure, unit area power density is big, and the earth pressure balance and the balanced rectangle pipe push bench blade disc drive of muddy water of the multiple cutter disc type of being convenient for are arranged, have improved the cross-section width and the proportion scope of height of rectangle pipe push bench greatly, adapt to the advantage that the interface specification of pipe push bench arranges better.

Description

Cutter head driving assembly of push bench

Technical Field

The utility model relates to an underground space engineering entry driving machine technical field, concretely relates to decide cutter head drive assembly of shutdown machine.

Background

In recent years, rectangular pipe push bench has been widely applied to non-excavation underground engineering project construction such as urban subway tunnel pedestrian passageway, street crossing pedestrian passageway, underpass cross traffic network, pipe gallery underground excavation and the like. In the prior art, the cutter head of the rectangular push bench is mostly designed into a multi-cutter-head multi-drive combined cutter head due to the special cutting section, so that the problems that the proportional range of the width and the height of the section of the rectangular push bench is small, the section specification setting of the push bench cannot be well adapted, the power density per unit area is poor and the like are often encountered.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a push bench blade disc drive assembly to improve the proportional range of rectangle push bench's cross-section width and height, adapt to the cross-sectional specification setting of push bench better, the earth pressure balance and the balanced rectangle push bench blade disc drive of muddy water of the multiple cutter type of being convenient for are arranged.

In order to solve the technical problem, the technical scheme of the utility model as follows: the utility model provides a pipe pushing jack blade disc drive assembly, includes a motor power and the speed reducer, a preceding box and a back box that match with it to and carry out the seal groove that fastening connection becomes through the bolt, motor power and speed reducer erection joint, motor power passes through the bolt fastening on the motor mount pad of back box, just the interior keyway and the butt joint of pinion keyway of motor power internal unit form key drive mechanism, the pinion passes through the bearing around the location fastening install on preceding box and back box, pinion and gear wheel involute gear drive gear wheel are rotatory, the gear wheel passes through bolt and packing ring fixed mounting on the shaft shoulder of main shaft, the interior keyway of gear wheel is fixed and then the drive spindle is rotatory with the keyway meshing of main shaft, the main shaft is fixed in through tapered roller bearing on the back box rear end to consolidate with lock nut, preventing the main shaft from moving.

In some embodiments, an inner ring of a tapered roller thrust bearing is fixed on a shaft shoulder of the main shaft, and an outer ring of the tapered roller thrust bearing is fixed on the front end of the rear box body so as to facilitate the transfer of axial force to the rear box body.

In some embodiments, a self-aligning needle bearing is mounted on the front box body, the middle of the self-aligning needle bearing is supported by a bearing support ring, and a soil and sand sealing end cover is mounted at the front end of the front box body together with a sealing ring to form front soil and sand sealing of the main shaft.

In some embodiments, a fluid input shaft sleeve is further disposed at the rear end of the rear box, 2 water injection channels are further disposed on the fluid input shaft sleeve, and media such as improved muddy water can be injected into the front end of the cutter head through the water injection channels, and the fluid input shaft sleeve can also serve as a sealing and grease lubrication interface.

In some embodiments, a rear end cover is fixed on the rear box body, and 2 sets of framework seals which are installed in the front and the back are arranged on the rear end cover, so as to prevent oil leakage at the shaft end of the main shaft and muddy water of the fluid input shaft sleeve from entering the driving cavity through the shaft seal interface.

In some embodiments, the number of the bearings is 6, and the bearings are respectively correspondingly installed on 6 bearing installation seats of the front box body and the rear box body and used as a supporting transmission pair of the pinion.

Compared with the prior art, the utility model has the advantages that:

1. the use of the tapered roller bearing and the tapered thrust roller bearing and the fastening action of the stop nut ensure that the axial force of the main shaft is transferred to the rear box body, so that the main shaft can be effectively prevented from moving;

2. the use of the fluid input shaft sleeve and the arrangement of the water injection channel can improve the rotating speed of the cutter head by injecting media such as improved muddy water;

3. the multi-cutter-disc type soil pressure balance and muddy water balance rectangular push bench has the advantages of compact structure and high power density per unit area, is convenient for the cutter disc driving arrangement of the multi-cutter-disc type soil pressure balance and muddy water balance rectangular push bench, greatly improves the proportional range of the section width and height of the rectangular push bench, and better adapts to the interface specification arrangement of the push bench.

Drawings

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic plan view of an embodiment of the present invention;

fig. 3 is a schematic view of the local structure of the main shaft and the rear box of the present invention.

1. A front box body; 2. a bearing; 3. a rear box body; 4. a pinion gear; 5. a speed reducer; 6. a fluid input shaft sleeve; 7. a rear end cap; 8. a stop nut; 9. a tapered roller bearing; 10. a tapered thrust roller bearing; 11. a gasket; 12. a bull gear; 13. a self-aligning needle bearing; 14. a bearing support ring; 15. a main shaft; 16. sealing the end cover by using soil and sand; 17. a seal ring; 18. sealing the framework; 19. a water injection channel; 20. a power motor.

Detailed Description

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Referring to fig. 2, the pipe pushing jack cutter head driving assembly of the present invention comprises a power motor 20, a speed reducer 5, a front box 1, a rear box 3, and a sealing groove fastened and connected by bolts, wherein the power motor 20 is mounted and connected with the speed reducer 5, the power motor 5 is fixed on the motor mounting seat of the rear box 3 by bolts, and the inner key groove of the inner machine of the power motor 20 is butted with the key groove of the pinion gear 4 to form a key transmission mechanism, the pinion gear is mounted on the front box and the rear box by the front and rear positioning fastening of the bearing, the pinion gear drives the gearwheel to rotate by the involute gear transmission of the gearwheel and the gearwheel, the gearwheel is fixedly mounted on the shaft shoulder of the spindle by the bolts and the gasket, the inner key groove of the gearwheel is meshed and fixed with the key groove of the spindle to drive the spindle to rotate, the spindle is fixed on the rear end of the rear, and a stop nut is used for reinforcing to prevent the main shaft from moving.

Specifically, an inner ring of the tapered roller thrust bearing 10 is fixed on a shaft shoulder of the main shaft 15, and an outer ring of the tapered roller thrust bearing 10 is fixed on the front end of the rear box 3, so that the axial force is transferred to the rear box 3.

Specifically, a self-aligning needle bearing 13 is mounted on the front box body 1, the middle of the self-aligning needle bearing 13 is supported by a bearing support ring 14, and a soil and sand sealing end cover 16 is mounted at the front end of the front box body 1 together with a sealing ring 17 to form front soil and sand sealing of the main shaft 15.

Further, referring to fig. 3, the rear end of the rear box 3 is further provided with a fluid input shaft sleeve 6, the fluid input shaft sleeve 6 is further provided with 2 water injection channels 19, and media such as improved muddy water can be injected into the front end of the cutter head through the water injection channels 19, and the fluid input shaft sleeve can also be used as a sealing and grease lubricating interface.

Specifically, a rear end cover 7 is fixed on the rear box body 3, and 2 sets of framework seals 18 which are installed in the front and the back are arranged on the rear end cover 7, so that oil leakage at the shaft end of the main shaft 15 and muddy water of the fluid input shaft sleeve 6 are prevented from entering the driving cavity through the shaft seal interface.

Specifically, the number of the bearings 2 is 6, and the bearings 2 are respectively correspondingly installed on 6 bearing installation seats of the front box body 1 and the rear box body 3 and used as a support transmission pair of the pinion 4.

More specifically, referring to fig. 1, the utility model discloses pass through a converter drive by 3 motor power 20, the key drive mechanism drive pinion 4 that the interior keyway through motor power 20 internal unit and 4 keyways of pinion formed is rotatory, and then drives gear wheel 12 rotatory, because gear wheel 12 is fixed mounting on main shaft 15, so main shaft 15 also can rotate, forms one set of complete gear drive mechanism, with motor power 20's power transmission to main shaft 15 on. And the front end of the main shaft 15 is provided with an external transmission key slot which is in key connection with a key slot in the cutting cutter head transmission cylinder body, so that the cutting cutter head is driven to rotate to cut a front-end soil body, the whole structure is compact, the power density per unit area is large, the multi-cutter-head type soil pressure balance and muddy water balance rectangular push bench cutter head driving arrangement is facilitated, the proportional range of the section width and the height of the rectangular push bench is greatly improved, and the interface specification arrangement of the push bench is better adapted.

In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a pipe push bench blade disc drive assembly, its characterized in that, includes motor power (20), motor power (20) are fixed on the motor mount pad of back box (3), the interior keyway of motor power internal unit and little gear (4) keyway butt joint, little gear (4) fastening installation in the front box (1) with on back box (3), it is rotatory with gear wheel (12) involute gear drive gear wheel pinion (4), the interior keyway of gear wheel (12) is fixed with the keyway meshing of main shaft (15), and then the drive main shaft is rotatory, main shaft (15) fixed mounting in on back box (3) rear end.

2. The pipe push bench cutter head driving assembly according to claim 1, wherein the pinion (4) is fixedly mounted on the front box body (1) and the rear box body (3) in a front-back positioning manner through bearings (2).

3. The pipe push bench cutter head driving assembly according to claim 1, wherein the front box body (1) is provided with a self-aligning needle bearing (13), the middle of the self-aligning needle bearing is supported by a bearing support ring (14), the front end of the front box body (1) is provided with a soil and sand sealing end cover (16), and a sealing ring (17) is arranged between the front box body (1) and the soil and sand sealing end cover (16).

4. The pipe push bench cutter head drive assembly according to claim 1, wherein an inner ring of the tapered thrust roller bearing (10) is fixed on a shaft shoulder of the main shaft (15), and an outer ring of the tapered thrust roller bearing (10) is fixed on the front end of the rear box body (3).

5. The pipe push bench cutter head drive assembly according to claim 1, characterized in that a rear end cover (7) is fixed on the rear box body (3), and 2 sets of framework seals (18) which are installed in the front and back are arranged on the rear end cover (7).

6. The pipe push bench cutter head driving assembly according to claim 2, wherein the number of the bearings (2) is 6, and the bearings are respectively and correspondingly mounted on 6 bearing mounting seats of the front box body (1) and the rear box body (3).

7. The pipe push bench cutter head driving assembly according to claim 1, wherein a fluid input shaft sleeve (6) is further provided on the rear end of the rear box body (3), and 2 water injection channels (19) are further provided on the fluid input shaft sleeve (6).

8. The pipe push bench cutter head driving assembly according to claim 1, wherein the large gear (12) is fixedly mounted on a shaft shoulder of the main shaft (15) through a bolt and a washer (11), and the main shaft (15) is fixed on the rear end of the rear box body (3) through a tapered roller bearing (9) and is reinforced by a stop nut (8).

9. The pipe push bench cutterhead driving assembly according to claim 1, wherein the power motor (20) is further mounted and connected with a speed reducer (5) matched with the power motor.