Main driving box body of shield tunneling machine

Abstract

The utility model discloses a main driving box body of a shield tunneling machine, which relates to the technical field of shield tunneling machines and comprises a driving box body assembly, and a plurality of supporting components distributed in an annular array are arranged at the bottom end of the driving box body assembly. Through the arrangement of the annular plate and the supporting assembly, after the driving equipment of the shield tunneling machine is installed on the installation flange, the supporting assembly can be arranged on the driving equipment in a sleeving mode, the connecting cylinder is in threaded connection with the annular plate, and the multiple limiting plates and the multiple limiting layers can support the non-fixed end of the driving equipment; the supporting assembly is made of high-strength plastic and has good deformation resistance, so that the non-fixed end of the driving equipment can be well supported, bolts connected between the driving equipment and the mounting flange can be evenly stressed, and therefore the bolts are prevented from being broken, the driving equipment is prevented from being inclined, and a main bearing and a pinion are prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machines, in particular to a main drive box of a shield machine. Background Art

[0002] The shield machine is a special engineering machine for tunnel excavation. According to the working principle, the shield machine is generally divided into hand-dug shield, squeeze shield, semi-mechanical shield (local air pressure, global air pressure), mechanical shield (open-chest cutting shield, air pressure shield, mud-water pressure shield, earth pressure balance shield, hybrid shield, special-shaped shield).

[0003] The shield main drive box provides a mounting base for other components of the cutter drive system, and has very high requirements for the rigidity and strength of the structure. The structural safety of the main drive box is of great significance to the cutter drive system. However, when installing the drive device in the existing main drive box, one end of the drive device is fixed by bolts or flanges, while the other end is exposed. This results in uneven force on multiple bolts due to gravity due to the heavy weight of the drive device itself. During the use of the shield machine, there is a large shake, which will cause damage to the bolts with greater force, resulting in the skew of the drive device, which will directly affect the meshing accuracy of the main bearing and the pinion, and even cause damage to the main bearing and the pinion.

[0004] Therefore, it is necessary to invent a shield machine main drive box to solve the above problems. Summary of the invention

[0005] The purpose of the utility model is to provide a main drive box of a shield machine to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a main drive box of a shield machine, comprising a drive box assembly, wherein a plurality of support assemblies distributed in a ring array are installed at the bottom end of the drive box assembly;

[0007] The drive box assembly comprises a drive box body, a top end of the drive box body is penetrated with a plurality of first mounting holes corresponding to the support components, a mounting flange and an annular plate are integrally formed at the bottom opening of the first mounting hole, and the mounting flange is located inside the annular plate;

[0008] The support assembly includes a limiting cylinder, a connecting cylinder is integrally formed at the top of the limiting cylinder, and the connecting cylinder is located between the annular plate and the mounting flange, and an outer wall of the connecting cylinder is threadedly connected to an inner wall of the annular plate.

[0009] Preferably, a through slot is provided through the middle of the driving box body, and a plurality of second mounting holes distributed in a circular array are provided on the bottom opening edge of the through slot.

[0010] Preferably, a plurality of bolt mounting holes are provided at the bottom end of the mounting flange, a mounting cylinder is provided at the top end of the drive box body, and a plurality of frame plates distributed in a ring array are integrally formed at the edge between the mounting cylinder and the drive box body.

[0011] Preferably, a mounting tube is integrally formed in the middle of the top end of the front cover plate, and a plurality of the first mounting holes and a plurality of frame plates are alternately distributed.

[0012] Preferably, a plurality of limiting plates distributed in a ring array are integrally formed at the bottom end of the limiting cylinder, and the limiting plates are arranged in an arc shape.

[0013] Preferably, a limiting layer is fixedly provided on the inner side wall of the limiting plate, and the inner side wall of the limiting layer is inclined.

[0014] Preferably, the outer side wall of the limiting plate is provided with a plurality of reinforcing ribs distributed at equal intervals, and one end of the reinforcing ribs extends to the outer side wall of the limiting cylinder.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model can, through the arrangement of the annular plate and the supporting assembly, sleeve the supporting assembly onto the driving equipment after the driving equipment of the shield machine is installed on the mounting flange, and through the threaded connection of the connecting tube and the annular plate, a plurality of limiting plates and limiting layers can support the non-fixed end of the driving equipment. The supporting assembly is made of high-strength plastic and has good anti-deformation performance, so that the non-fixed end of the driving equipment can be well supported, so that the bolts connecting the driving equipment and the mounting flange can be evenly stressed, thereby preventing the bolts from breaking, preventing the driving equipment from skewing, and preventing damage to the main bearing and the pinion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0018] Figure 2 It is a front structural schematic diagram of the drive box assembly of the utility model.

[0019] Figure 3 It is a schematic diagram of the back structure of the drive box assembly of the utility model.

[0020] Figure 4 This is a schematic diagram of the support assembly structure of the utility model.

[0021] Figure 5 It is a cross-sectional structural diagram of the support assembly of the utility model.

[0022] In the figure: 1. drive box assembly; 2. support component; 101. drive box body; 102. first mounting hole; 103. front cover; 104. mounting cylinder; 105. frame plate; 106. annular plate; 107. mounting flange; 108. through groove; 109. second mounting hole; 201. limiting cylinder; 202. connecting cylinder; 203. limiting plate; 204. reinforcing rib; 205. limiting layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figure 1-5 The main drive box of a shield machine shown in the figure comprises a drive box assembly 1, a plurality of support components 2 distributed in a ring array are installed at the bottom end of the drive box assembly 1, the drive box assembly 1 comprises a drive box body 101, a plurality of first mounting holes 102 corresponding to the support components 2 are opened through the top of the drive box body 101, a mounting flange 107 and an annular plate 106 are integrally formed at the bottom opening of the first mounting hole 102, and the mounting flange 107 is located inside the annular plate 106, and the middle of the drive box body 101 is penetrated A through slot 108 is provided through the through slot 108, and a plurality of second mounting holes 109 distributed in a circular array are provided at the bottom opening edge of the through slot 108, a plurality of bolt mounting holes are provided at the bottom end of the mounting flange 107, a mounting tube 104 is provided at the top end of the drive box body 101, and a plurality of frame plates 105 distributed in a circular array are integrally formed at the edge between the mounting tube 104 and the drive box body 101, a mounting tube 104 is integrally formed at the middle of the top end of the front cover plate 103, and a plurality of first mounting holes 102 and a plurality of frame plates 105 are distributed alternately.

[0025] Furthermore, the support component 2 includes a limiting cylinder 201, the top of which is integrally provided with a connecting cylinder 202, and the connecting cylinder 202 is located between the annular plate 106 and the mounting flange 107, the outer wall of the connecting cylinder 202 is threadedly connected to the inner wall of the annular plate 106, and the bottom of the limiting cylinder 201 is integrally provided with a plurality of limiting plates 203 distributed in a ring array, and the limiting plates 203 are arranged in an arc shape, the limiting cylinder 201, the connecting cylinder 202 and the limiting plates 203 are all made of high-strength plastic, such as high-density polyethylene, and have a good anti-deformation effect, the inner wall of the limiting plate 203 is fixedly provided with a limiting layer 205, and the inner wall of the limiting layer 205 is inclined, and through the arrangement of the annular plate 106 and the support component 2, it can be installed in the driving equipment of the shield machine. After being installed on the mounting flange 107, the support assembly 2 is put onto the driving device and is threadedly connected through the connecting tube 202 and the annular plate 106. Multiple limit plates 203 and limit layers 205 can support the non-fixed end of the driving device. The support assembly 2 is made of high-strength plastic and has excellent anti-deformation performance, so that it can well support the non-fixed end of the driving device, so that the bolts connecting the driving device and the mounting flange 107 can be evenly stressed, thereby preventing the bolts from breaking, preventing the driving device from tilting, and preventing damage to the main bearing and pinion gear. The limit layer 205 is made of hard rubber, which can have a buffering effect and prevent wear between the support assembly 2 and the driving device. The inclined setting can facilitate installation and enable the limit plate 203 to firmly clamp the driving device.

[0026] Secondly, the outer wall of the limit plate 203 is provided with a plurality of reinforcing ribs 204 distributed at equal intervals, and one end of the reinforcing rib 204 extends to the outer wall of the limit tube 201. By setting a plurality of reinforcing ribs 204, the strength of the limit tube 201 and the limit plate 203 can be improved, and the deformation of the limit plate 203 can be further prevented, thereby improving the supporting effect of the support assembly 2.

[0027] Working principle of this utility model:

[0028] When in use, the driving device of the shield machine is installed on the mounting flange 107 and fixed by multiple bolts. Then the support assembly 2 is put on the driving device and threadedly connected through the connecting tube 202 and the annular plate 106. Multiple limit plates 203 and limit layers 205 can support the non-fixed end of the driving device. The support assembly 2 is made of high-strength plastic and has good anti-deformation performance, so that it can well support the non-fixed end of the driving device, so that the bolts connecting the driving device and the mounting flange 107 can be evenly stressed, thereby preventing the bolts from breaking, preventing the driving device from tilting, and preventing damage to the main bearing and pinion.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A main drive box of a shield machine, characterized in that: It comprises a drive box assembly (1), wherein a plurality of support assemblies (2) distributed in a ring array are installed at the bottom end of the drive box assembly (1); The drive box assembly (1) comprises a drive box body (101), a top end of the drive box body (101) is penetrated by a plurality of first mounting holes (102) corresponding to the support components (2), a mounting flange (107) and an annular plate (106) are integrally formed at the bottom opening of the first mounting hole (102), and the mounting flange (107) is located inside the annular plate (106); The support assembly (2) comprises a limiting cylinder (201), the top end of the limiting cylinder (201) is integrally provided with a connecting cylinder (202), and the connecting cylinder (202) is located between the annular plate (106) and the mounting flange (107), and the outer wall of the connecting cylinder (202) is threadedly connected to the inner wall of the annular plate (106).

2. A shield machine main drive housing according to claim 1, characterized in that: A through slot (108) is provided through the middle of the driving box body (101), and a plurality of second mounting holes (109) distributed in a circular array are provided at the bottom opening edge of the through slot (108).

3. A shield machine main drive housing according to claim 2, characterized in that: A plurality of bolt mounting holes are provided at the bottom end of the mounting flange (107), a mounting cylinder (104) is provided at the top end of the drive box body (101), and a plurality of frame plates (105) distributed in a ring array are integrally formed at the edge between the mounting cylinder (104) and the drive box body (101).

4. A shield machine main drive housing according to claim 3, characterized in that: A mounting tube (104) is integrally formed in the middle of the top end of the front cover plate (103), and a plurality of the first mounting holes (102) and a plurality of frame plates (105) are alternately distributed.

5. A shield machine main drive housing according to claim 4, characterized in that: The bottom end of the limiting cylinder (201) is integrally formed with a plurality of limiting plates (203) distributed in a ring array, and the limiting plates (203) are arranged in an arc shape.

6. A shield machine main drive housing according to claim 5, characterized in that: The inner side wall of the limiting plate (203) is fixedly provided with a limiting layer (205), and the inner side wall of the limiting layer (205) is arranged in an inclined manner.

7. A shield machine main drive housing according to claim 6, characterized in that: The outer wall of the limiting plate (203) is provided with a plurality of reinforcing ribs (204) distributed at equal intervals, and one end of the reinforcing rib (204) extends to the outer wall of the limiting cylinder (201).

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