Hob cutter ring and check ring mounting tool for repairing TBM hob

Abstract

The utility model relates to a hob cutter ring and retainer ring installation tool for TBM hob repair, which comprises an installation tool main body frame and a bottom bevel opening, the installation tool main body frame is cylindrical, the bottom bevel opening is annular, and the bottom bevel opening is installed at the bottom end of the installation tool main body frame. The installation tool has the advantages that the installation tool is simple in structure, materials are easy to obtain, manufacturing difficulty is low, the installation tool can be used for installation of the hob cutter ring and the hob check ring, and the operation difficulty of installation of the hob cutter ring and the hob check ring is reduced by arranging the bottom bevel opening; the two handles are arranged on the two sides of the installation tool main body frame, personnel can take the tool conveniently, the safety of the tool repairing personnel is guaranteed, the middle hollowed-out part is formed in the installation tool main body frame, the overall dead weight of the installation tool is reduced, and the taking convenience is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machine / TBM maintenance, and in particular comprises a hob cutter ring and a retaining ring installation tool for repairing a TBM hob cutter. Background Art

[0002] When the shield machine is excavating hard rock, the friction and impact between the tool and the rock will cause serious wear of the tool. If the cutter ring of the roller is seriously damaged, it will easily cause the roller to fail and the excavation efficiency will be greatly reduced. Considering the construction cost issue, the roller tool is usually replaced with a new one at this time. At the same time, the cutter ring of the replaced roller also needs to be replaced to improve construction efficiency and reduce construction costs.

[0003] However, the prior art has the following disadvantages:

[0004] During the existing installation of the cutter ring, the installation of the roller is difficult, and hammering and other methods are usually used to assist the installation. However, this can easily cause the cutter ring to deform, resulting in the cutter ring not being installed properly. In extreme cases, the cutter ring can easily get stuck on the cutter body, resulting in the entire cutter body and cutter ring being scrapped. Utility Model Content

[0005] The utility model aims to overcome the deficiencies in the prior art and provide a hob cutter ring and retaining ring installation tool for repairing a TBM hob cutter.

[0006] The hob cutter ring and retaining ring installation tool for TBM hob repair comprises: an installation tool main frame and a bottom bevel, wherein the installation tool main frame is cylindrical, the bottom bevel is ring-shaped, and the bottom bevel is installed at the bottom end of the installation tool main frame;

[0007] A hydraulic point is arranged at the center of the top of the main frame of the installation tool, and the hydraulic point and the inner wall of the top of the main frame of the installation tool are connected through a top reinforcing rib.

[0008] Preferably, the outer wall surface of the bottom bevel is flush with the main frame of the installation tool, and the thickness of one end where the bottom bevel is connected to the main frame of the installation tool is greater than the thickness of the other end.

[0009] Preferably, the top reinforcing ribs are in a cross structure, the intersection of the top reinforcing ribs is at the top center of the main frame of the installation tool, and the hydraulic point is located at the intersection of the top reinforcing ribs.

[0010] Preferably, the main frame ring of the installation tool is provided with a plurality of hollow portions in the middle.

[0011] Preferably, handles are symmetrically provided on both sides of the main frame of the installation tool.

[0012] The beneficial effects of the utility model are:

[0013] 1) The installation tool has a simple structure, is easy to obtain materials, and is relatively easy to manufacture. It can be used for the installation of the hob cutter ring and the hob retaining ring. By setting the bottom bevel, the difficulty of installing the hob cutter ring and the hob retaining ring is reduced.

[0014] 2) There are two handles on both sides of the main frame of the installation tool to facilitate personnel to take it and ensure the safety of tool repair personnel. The main frame of the installation tool is hollowed out in the middle, which reduces the overall weight of the installation tool and further improves the convenience of taking it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the installation tool structure diagram;

[0016] Figure 2 It is a top view of the installation tool;

[0017] Figure 3 This is a diagram of the bottom structure of the installation tool.

[0018] Explanation of the reference numerals: main frame of the installation tool 1, handle 2, top reinforcement rib 3, hydraulic point 4, middle hollow 5, bottom bevel 6. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the embodiments. The description of the following embodiments is only used to help understand the utility model. It should be pointed out that for ordinary people in this technical field, the utility model can also be modified in some ways without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0020] As an example, Figures 1 to 3 As shown, the cutter ring and retaining ring installation tool for TBM cutter repair includes: a main frame 1 and a bottom bevel 6. The main frame 1 is cylindrical, and handles 2 are symmetrically arranged on both sides of the main frame 1 to facilitate the cutter repair personnel to take it during use and increase the safety of the cutter repair operation. The main frame 1 is provided with several hollows 5 in the middle to save materials and prevent the weight of the installation tool from being too heavy to be used by the cutter repair personnel, so as to facilitate taking.

[0021] The bottom bevel 6 is annular and is mounted on the bottom end of the main frame 1 of the installation tool;

[0022] A hydraulic point 4 is provided at the center of the top of the main frame 1 of the installation tool. The hydraulic point 4 and the inner wall of the top of the main frame 1 of the installation tool are connected by a top reinforcing rib 3. The top reinforcing rib 3 is in a cross structure to increase the overall stability. The intersection of the top reinforcing rib 3 is at the center of the top of the main frame 1 of the installation tool. The hydraulic point 4 is provided at the intersection of the top reinforcing rib 3, which is essentially a circular area formed by increasing the area of ​​the top reinforcing rib 3, thereby increasing the attachment point of the hydraulic press.

[0023] The outer wall surface of the bottom bevel 6 is flush with the main frame 1 of the installation tool, and the thickness of one end where the bottom bevel 6 is connected to the main frame 1 of the installation tool is greater than the thickness of the other end. Considering that the cutter body and cutter ring of the roller cutter replaced by the excavation hard rock may be deformed, the bevel is set to make it easier to press the cutter ring and retaining ring onto the cutter body.

[0024] When using this hob cutter ring and retaining ring installation tool for TBM hob repair, the disassembled hob is first rinsed and cleaned, the cutter disc torque is preliminarily checked, the retaining ring is removed with a cutting machine, and the cutter ring is removed with a high-frequency induction heater.

[0025] Clean and check the cutter ring installation part of the cutter body, and measure its diameter. Before installing the cutter ring, first heat the cutter ring to 200℃ and keep it warm for 30 minutes. Then install the cutter ring and place it on the upper part of the cutter body. At the same time, place the cutter ring and retaining ring installation tool for TBM cutter repair on the upper part. The bottom bevel 6 is against the cutter ring, and a hydraulic press is used to pressurize the hydraulic point 4 on its top to facilitate the installation of the cutter ring.

[0026] Check whether there is a gap between the cutter ring and the lower cutter body, and whether the cutter ring is installed in place. After the cutter ring is installed in place, the cutter ring and retaining ring installation tools and hydraulic press used to repair the TBM cutter are used to install the retaining ring. At the same time, check whether the retaining ring tool is installed in place and whether there is any tilt.

[0027] After checking that everything is correct, the installation of the hob cutter ring and retaining ring is completed.

Claims

1. A hob cutter ring and retaining ring installation tool for TBM hob repair, characterized in that: include: The installation tool body frame and the bottom bevel are provided, wherein the installation tool body frame is cylindrical, the bottom bevel is ring-shaped, and the bottom bevel is provided at the bottom end of the installation tool body frame; A hydraulic point is arranged at the center of the top of the main frame of the installation tool, and the hydraulic point and the inner wall of the top of the main frame of the installation tool are connected through a top reinforcing rib.

2. The hob cutter ring and retaining ring installation tool for TBM hob repair according to claim 1, characterized in that: The outer wall surface of the bottom bevel is flush with the main frame of the installation tool, and the thickness of one end where the bottom bevel is connected to the main frame of the installation tool is greater than the thickness of the other end.

3. The hob cutter ring and retaining ring installation tool for TBM hob repair according to claim 1, characterized in that: The top reinforcing ribs are in a cross-shaped structure, the intersection of the top reinforcing ribs is at the top center of the main frame of the installation tool, and the hydraulic point is arranged at the intersection of the top reinforcing ribs.

4. The hob cutter ring and retaining ring installation tool for TBM hob repair according to claim 1, characterized in that: The main frame ring of the installation tool is provided with a plurality of middle hollows upwardly.

5. The hob cutter ring and retaining ring installation tool for TBM hob repair according to claim 1, characterized in that: Handles are symmetrically arranged on both sides of the main frame of the installation tool.

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