CN218971196U

CN218971196U - Tunnel boring machine main driving device additionally provided with grinding ring

Info

Publication number: CN218971196U
Application number: CN202223501871.0U
Authority: CN
Inventors: 陈良武; 王一博; 陈亚南; 孙惟立; 范昆朋; 王付利; 钟庆丰; 高利斌; 王双旺; 朱雷
Original assignee: China Railway Engineering Equipment Group Technology Service Co Ltd
Current assignee: China Railway Engineering Equipment Group Technology Service Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-05
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a main driving device of a tunnel boring machine with an additional grinding ring, which solves the problem that a driving disc and a driving box are easy to wear in the prior art. The utility model comprises a driving disc and a driving box, wherein an external sealing compression ring I is arranged on the driving disc, and an external sealing grinding ring is arranged between the external sealing compression ring I and the driving disc; an inner sealing compression ring I is arranged on the driving box, and an inner sealing grinding ring is arranged between the driving box and the inner sealing compression ring I. The main driving device further comprises an external sealing compression ring for fixing the external sealing compression ring I and an internal sealing compression ring for fixing the internal sealing compression ring I. On the premise of ensuring normal use of the main drive, the utility model solves the problems of long period and high cost caused by difficult control of the repair precision after the abrasion of the existing drive disc and drive box, greatly saves the repair time and cost, and meets the requirements of green manufacture.

Description

Tunnel boring machine main driving device additionally provided with grinding ring

Technical Field

The utility model relates to the technical field of main driving of tunnel boring machines, in particular to a main driving device of a tunnel boring machine with an additional grinding ring.

Background

The main driving sealing system of the tunnel boring machine is an important structure for ensuring the normal work of the main driving and the normal boring of equipment. The main driving sealing compression ring of the tunnel boring machine and the driving disc have fit clearance when being assembled, and have relative movement in the service process, so that the driving disc and/or the driving box are worn after external impurities such as sand and stone enter.

At present, two maintenance modes are commonly used in the industry aiming at the abrasion problem of a main driving disc and a driving box of a tunnel boring machine. When the driving disc and the driving box are slightly worn, repair welding is carried out on worn parts of the driving disc and the driving box, and then machining treatment is carried out; when wear is severe, it is necessary to replace the new drive disk or drive case. The two maintenance modes are accompanied with the problems of welding deformation, difficult control of maintenance precision, longer maintenance period, high cost and the like. Through observation, the abrasion of the driving disc and the driving box mainly occurs at the position corresponding to the sealing compression ring, so that the driving disc and the driving box are convenient to maintain after later abrasion, and the driving disc and the driving box are easy to abrade and are designed in a replaceable way, so that the driving disc and the driving box are economical and practical, and the effects of reducing later maintenance cost and maintenance period can be achieved. Therefore, it is necessary to design a main driving disc and a driving box of the tunnel boring machine with the grinding ring.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a main driving device of a tunnel boring machine with an additional grinding ring, which solves the problem that a driving disc and a driving box are difficult to repair after being worn in the prior art.

The technical scheme of the utility model is realized as follows: the main driving device of the tunnel boring machine with the grinding ring comprises a driving disc and a driving box, wherein an external sealing compression ring I is arranged on the driving disc, and an external sealing grinding ring is arranged between the external sealing compression ring I and the driving disc; an inner sealing compression ring I is arranged on the driving box, and an inner sealing grinding ring is arranged between the driving box and the inner sealing compression ring I. The main driving device further comprises an external sealing compression ring for fixing the external sealing compression ring I and an internal sealing compression ring for fixing the internal sealing compression ring I.

The outer sealing grinding ring is fixed on the outer wall of the driving disc, the outer sealing grinding ring I is sleeved on the outer sealing grinding ring and connected with the outer sealing grinding ring through bolts, and the outer sealing grinding ring I is in clearance fit with the outer sealing grinding ring.

The outer ring surface of the outer sealing grinding ring is provided with a counter bore I, the outer wall of the driving disk is provided with a threaded hole I, and the outer sealing grinding ring is fixedly connected with the driving disk through countersunk screws matched with the counter bore I and the threaded hole I.

The outer sealing grinding ring is fixed on the front end face of the driving disc, the outer sealing pressing ring I is sleeved on the outer sealing grinding ring and connected with the outer sealing pressing ring through bolts, and the outer sealing pressing ring I is in clearance fit with the outer sealing grinding ring.

The outer sealing grinding ring is fixedly connected with the driving disc through countersunk screws matched with the countersunk holes I and the threaded holes I.

The inner sealing grinding ring is fixed on the outer wall of the driving box, the inner sealing grinding ring I is sleeved on the inner sealing grinding ring and connected with the inner sealing grinding ring through bolts, and the inner sealing grinding ring I is in clearance fit with the inner sealing grinding ring.

The outer ring surface of the inner sealing grinding ring is provided with a counter bore II, the outer wall of the driving box is provided with a threaded hole II, and the inner sealing grinding ring is fixedly connected with the driving box through countersunk screws matched with the counter bore II and the threaded hole II.

The inner sealing grinding ring is fixed on the front end face of the driving box, the inner sealing grinding ring I is sleeved on the inner sealing grinding ring and connected with the inner sealing grinding ring through bolts, and the inner sealing grinding ring I is in clearance fit with the inner sealing grinding ring.

The inner sealing grinding ring is fixedly connected with the driving box through countersunk screws matched with the countersunk holes II and the threaded holes II.

The beneficial effects of the utility model are as follows: according to the utility model, the grinding rings are arranged on the driving disc and the driving box to avoid the relative movement of the driving disc, the driving box and the compression ring. In the service process of the shield machine, after sediment enters a gap between the pressing ring and the grinding ring, the abrasion of the grinding ring is used for replacing the abrasion of the driving disc and the driving box; when the abrasion of the driving disc is repaired, the purpose of quick repair can be realized by directly replacing the grinding ring, the maintenance process is simple, and the operation is convenient. On the premise of ensuring normal use of the main drive, the utility model solves the problems of long period and high cost caused by difficult control of the repair precision after the damage of the conventional drive disc mill and the drive box, greatly saves the repair time and cost, and meets the requirements of green manufacture.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of the assembled state of the present utility model.

Fig. 2 is a schematic view of a drive disk according to the present utility model.

Fig. 3 is a view from A-A in fig. 2.

Fig. 4 is a schematic view showing the installation state of the outer seal grinding ring in example 2.

Fig. 5 is a view of the drive disk A-A in embodiment 3.

FIG. 6 is a schematic view showing the installation state of the outer seal grind ring in example 3.

Fig. 7 is a schematic view of the structure of the driving box.

Fig. 8 is a view of the drive casing A-A of fig. 7.

Fig. 9 is a schematic view showing the installation state of the inner seal grind ring in example 4.

Fig. 10 is a view of the drive casing A-A in embodiment 5.

FIG. 11 is a schematic view showing the installation state of the inner seal grind ring in example 5.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, in embodiment 1, a main driving device of a tunnel boring machine with an additional grinding ring comprises a driving disc 1 and a driving box 2, wherein the driving disc 1 and the driving box 2 are in clearance fit. An outer sealing compression ring I3 is arranged on the driving disc 1, and an outer sealing grinding ring 4 is arranged between the outer sealing compression ring I3 and the driving disc 1; an inner sealing compression ring I5 is arranged on the driving box 2, and an inner sealing grinding ring 6 is arranged between the driving box 2 and the inner sealing compression ring I5; the outer sealing grinding ring 4 and the inner sealing grinding ring 6 are both lining bodies made of wear-resistant materials, and wear resistance can be increased by adopting a mode of coating the wear-resistant materials. The outer sealing grinding ring 4 and the inner sealing grinding ring 6 can be integrated or spliced by a plurality of pieces; the outer wall of the driving disk is contacted with the sealing runway 9, and the outer wall of the driving box 2 is also contacted with the sealing runway 9, so that the tightness is improved. The main driving device of the tunnel boring machine of the embodiment further comprises an outer sealing pressing ring 7 for fixing the outer sealing pressing ring I3 and an inner sealing pressing ring 8 for fixing the inner sealing pressing ring I5. The outer sealing pressing ring 7 and the inner sealing pressing ring 8 are fixed on the corresponding main driving matrix through bolts.

The relative movement of the driving disc and the compression ring is avoided by installing the grinding ring on the driving disc. In the service process of the shield machine, after sediment enters a gap between the pressing ring and the grinding ring, the abrasion of the grinding ring is used for replacing the abrasion of the driving disc. The relative movement of the driving box and the compression ring is avoided by installing the grinding ring on the driving box base body. In the service process of the shield machine, after sediment enters a gap between the pressing ring and the grinding ring, the abrasion of the grinding ring replaces the abrasion of the driving box base body.

Example 2: as shown in fig. 2, 3 and 4, in the embodiment 1, the outer sealing grinding ring 4 is fixed on the outer wall of the driving disc 1, the outer sealing pressing ring i 3 is sleeved on the outer sealing grinding ring 4 and is connected with the outer sealing pressing ring 7 through bolts, and the outer sealing pressing ring i 3 is in clearance fit with the outer sealing grinding ring 4, so that friction is reduced. Specifically: the outer ring surface of the outer sealing grinding ring 4 is provided with counter bores I401, the number of the counter bores I401 can be multiple according to the requirement, the outer wall of the driving disk 1 is provided with threaded holes I402, the number of the threaded holes I402 can be multiple according to the requirement and corresponds to the counter bores I401 one by one, and the outer sealing grinding ring 4 is fixedly connected with the driving disk 1 through countersunk screws matched with the counter bores I401 and the threaded holes I402. The width of the outer sealing grinding ring 4 is preferably the same as that of the outer sealing compression ring I3, countersunk head screws are used for fixing the outer sealing grinding ring 4 from the radial direction, and countersunk head installation mode is adopted. When the abrasion of the driving disk is repaired, the purpose of quick repair can be realized by directly replacing the grinding ring.

Example 3: as shown in fig. 5 and 6, the difference between this embodiment and embodiment 2 is: the outer sealing grinding ring 4 is fixed on the front end face of the driving disc 1, the outer sealing pressing ring I3 is sleeved on the outer sealing grinding ring 4 and is connected with the outer sealing pressing ring 7 through bolts, and the outer sealing pressing ring I3 is in clearance fit with the outer sealing grinding ring 4, so that friction is reduced. The external seal grinding ring 4 is provided with counter bores I401 on the axial end face, the number of the counter bores I401 can be multiple according to the requirement, the front end face of the driving disk 1 is provided with threaded holes I402, the number of the threaded holes I402 can be multiple according to the requirement and corresponds to the counter bores I401 one by one, and the external seal grinding ring 4 is fixedly connected with the driving disk 1 through countersunk screws matched with the counter bores I401 and the threaded holes I402. The width of the outer sealing grinding ring 4 is preferably the same as that of the outer sealing compression ring I3, countersunk head screws are used for fixing the outer sealing grinding ring 4 axially, and countersunk head installation mode is adopted. When the relative motion of the driving disc and the compression ring is avoided by installing the grinding ring on the driving disc, the sand in the fit clearance between the driving disc and the compression ring abrades the driving disc matrix, and finally the abrasion of the driving disc matrix is replaced by the abrasion of the grinding ring.

Example 4: as shown in fig. 7, 8 and 9, in this embodiment, the inner sealing grinding ring 6 is fixed on the outer wall of the driving box 2, and the inner sealing pressing ring i 5 is sleeved on the inner sealing grinding ring 6 and is connected with the inner sealing pressing ring 8 by a bolt, and the inner sealing pressing ring i 5 is in clearance fit with the inner sealing grinding ring 6, so that friction is reduced. The outer ring surface of the inner sealing grinding ring 6 is provided with counter bores II 601, the number of the counter bores II 601 can be multiple according to the requirement, the outer wall of the driving box 2 is provided with threaded holes II 602, the number of the threaded holes II 602 can be multiple according to the requirement and corresponds to the counter bores II 601 one by one, and the inner sealing grinding ring 6 is fixedly connected with the driving box 2 through countersunk screws matched with the counter bores II 601 and the threaded holes II 602. The inner sealing grinding ring 6 is preferably as wide as the inner sealing compression ring I5, and countersunk screws are used for fixing the inner sealing grinding ring 6 from radial direction and adopting countersunk installation mode. When the abrasion of the driving box is repaired, the purpose of quick repair can be realized by directly replacing the grinding ring, the maintenance process is simple, the operation is convenient, and the purpose of saving maintenance time and cost is achieved.

Other structures are the same as those of

embodiment

1 or 2 or 3.

Example 5, as shown in fig. 10 and 11, differs from example 4 in that: the inner sealing grinding ring 6 is fixed on the front end face of the driving box 2, the inner sealing grinding ring I5 is sleeved on the inner sealing grinding ring 6 and is connected with the inner sealing grinding ring 8 through bolts, and the inner sealing grinding ring I5 is in clearance fit with the inner sealing grinding ring 6, so that friction is reduced. As the preferred scheme, be equipped with counter bore II 601 on the interior seal grinding ring 6 axial terminal surface, the quantity of counter bore II 601 can set up a plurality ofly as required, is equipped with screw hole II 602 on the preceding terminal surface of drive case 2, and the quantity of screw hole II 602 can set up a plurality ofly as required and with there being counter bore II 601 one-to-one, interior seal grinding ring 6 through with counter bore II 601 and screw hole II 602 complex countersunk head screw and drive case 2 fixed connection. The inner sealing grinding ring 6 is preferably as wide as the inner sealing compression ring I5, and countersunk screws are used for fixing the inner sealing grinding ring 6 axially and adopting a countersunk installation mode. When the relative motion of the driving box and the compression ring is avoided by installing the grinding ring on the driving box, the sediment in the fit clearance between the driving box and the compression ring abrades the driving box base body, and finally the abrasion of the driving box base body is replaced by the abrasion of the grinding ring.

In addition, a detachable wear-resistant ring can be arranged on the outer surface of the sealing runway 9 according to the requirement, so that the overall wear resistance of the main drive is improved. Instead of bolting, the grinding ring and the drive housing, the drive disk may be connected by other means, such as welding, and combinations thereof. The structure design solves the problems of long period and high cost caused by difficult control of the repair precision of the existing drive disc after abrasion on the premise of ensuring normal use of the main drive.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a tunnel boring machine main drive arrangement of grinding ring is add which characterized in that: the device comprises a driving disc (1) and a driving box (2), wherein an external sealing compression ring I (3) is arranged on the driving disc (1), and an external sealing grinding ring (4) is arranged between the external sealing compression ring I (3) and the driving disc (1); an inner sealing compression ring I (5) is arranged on the driving box (2), and an inner sealing grinding ring (6) is arranged between the driving box (2) and the inner sealing compression ring I (5).

2. The tunneling machine main driving device additionally provided with a grinding ring according to claim 1, wherein: the sealing device further comprises an outer sealing compression ring (7) for fixing the outer sealing compression ring I (3) and an inner sealing compression ring (8) for fixing the inner sealing compression ring I (5).

3. The tunneling machine main driving device additionally provided with the grinding ring according to claim 2, wherein: the outer sealing grinding ring (4) is fixed on the outer wall of the driving disc (1), the outer sealing grinding ring I (3) is sleeved on the outer sealing grinding ring (4) and is connected with the outer sealing grinding ring (7) through bolts, and the outer sealing grinding ring I (3) is in clearance fit with the outer sealing grinding ring (4).

4. A tunnel boring machine main driving device with an additional grinding ring as claimed in claim 3, wherein: the outer ring surface of the outer sealing grinding ring (4) is provided with a counter bore I (401), the outer wall of the driving disc (1) is provided with a threaded hole I (402), and the outer sealing grinding ring (4) is fixedly connected with the driving disc (1) through countersunk screws matched with the counter bore I (401) and the threaded hole I (402).

5. The tunneling machine main driving device additionally provided with the grinding ring according to claim 2, wherein: the outer sealing grinding ring (4) is fixed on the front end face of the driving disc (1), the outer sealing pressing ring I (3) is sleeved on the outer sealing grinding ring (4) and is connected with the outer sealing pressing ring (7) through bolts, and the outer sealing pressing ring I (3) is in clearance fit with the outer sealing grinding ring (4).

6. The main driving device for the tunnel boring machine additionally provided with the grinding ring according to claim 5, wherein: the external sealing grinding ring (4) is fixedly connected with the driving disc (1) through countersunk screws matched with the countersunk holes I (401) and the threaded holes I (402).

7. The tunneling machine main driving device additionally provided with the grinding ring according to claim 2, wherein: the inner sealing grinding ring (6) is fixed on the outer wall of the driving box (2), the inner sealing grinding ring (6) is sleeved with the inner sealing pressing ring I (5) and is connected with the inner sealing pressing ring (8) through bolts, and the inner sealing pressing ring I (5) is in clearance fit with the inner sealing grinding ring (6).

8. The tunneling machine main driving device additionally provided with the grinding ring according to claim 7, wherein: the outer ring surface of the inner sealing grinding ring (6) is provided with a counter bore II (601), the outer wall of the driving box (2) is provided with a threaded hole II (602), and the inner sealing grinding ring (6) is fixedly connected with the driving box (2) through countersunk screws matched with the counter bore II (601) and the threaded hole II (602).

9. The tunneling machine main driving device additionally provided with the grinding ring according to claim 2, wherein: the inner sealing grinding ring (6) is fixed on the front end face of the driving box (2), the inner sealing grinding ring I (5) is sleeved on the inner sealing grinding ring (6) and is connected with the inner sealing grinding ring (8) through bolts, and the inner sealing grinding ring I (5) is in clearance fit with the inner sealing grinding ring (6).

10. The tunneling machine main driving device additionally provided with the grinding ring according to claim 9, wherein: the inner sealing grinding ring (6) is provided with a counter bore II (601) on the axial end face, a threaded hole II (602) is formed in the front end face of the driving box (2), and the inner sealing grinding ring (6) is fixedly connected with the driving box (2) through countersunk screws matched with the counter bore II (601) and the threaded hole II (602).