CN210173257U

CN210173257U - Cutting device for replacing damaged cutter ring of hob of tunnel boring machine

Info

Publication number: CN210173257U
Application number: CN201920962515.8U
Authority: CN
Inventors: Changqing Zhang; 张长青; Liquan Wang; 王力权; Wei Tian; 田巍
Original assignee: HULUDAO LITIAN HEAVY INDUSTRY MACHINERY Co Ltd
Current assignee: HULUDAO LITIAN HEAVY INDUSTRY MACHINERY Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-03-24
Anticipated expiration: 2029-06-25

Abstract

The utility model provides a cutting device for changing tunnel boring machine hobbing cutter damages cutter ring. The cutting tool comprises a rectangular bottom plate, a cutting saw and a walking vehicle, wherein a support of a frame structure is arranged on one side of the rectangular bottom plate, the cutting saw for cutting damaged or scrapped cutter rings is connected onto the support, the other side of the bottom plate is connected with the walking vehicle through an electric push rod, and a foot switch for controlling the electric push rod to drive is arranged at the corner of the bottom plate to adjust and control the running of the walking vehicle. The rear end of the walking vehicle is sequentially provided with a rear V-shaped frame and a front V-shaped frame for clamping the hob, and the outer side of the front V-shaped frame is provided with a threaded ejector rod tightly propped against the side surface of the hob for locking and fixing. The lower part of the walking vehicle is provided with a pulley and moves along a track on the bottom plate under the action of the electric push rod. The utility model discloses a resin grinding wheel cutting damages or condemned hobbing cutter ring to the hobbing cutter centre gripping that will treat the maintenance is on the walking car, and electric putter control walking car's speed cuts steadily, fast, and the screw thread ejector pin can be portably swiftly dismantled. The hob ring is suitable for being used for dismounting the hob ring.

Description

Cutting device for replacing damaged cutter ring of hob of tunnel boring machine

Technical Field

The utility model relates to a maintenance tool of tunnel boring machine hobbing cutter especially relates to the change that damages the cutter ring in the tunnel boring machine hobbing cutter.

Background

After the hob of the heading machine is used for a period of time, the cutter ring is seriously worn or must be replaced after being scrapped, and the dismounting method adopts a gouging welding cutting mode; there are also ways of using induction heating. The requirements of gouging welding and cutting are professional personnel, the cutting process time is long, and the efficiency is too low; the size of the scrapped cutter ring is different due to abrasion, the size requirement for manufacturing an inductor is met, the induction coil needs to be frequently replaced, and the condition that induction heating equipment is not installed on some construction sites is avoided; frequent replacement of the induction coil takes a long time, and the assembly and disassembly efficiency is low.

Currently, there is an urgent need for cutting devices that can cut damaged or scrapped cutter rings.

Disclosure of Invention

In order to cut the damaged hob ring of the tunnel boring machine, the scrapped hob ring is replaced, the utility model provides a cutting device for replacing the damaged hob ring of the tunnel boring machine. The device is through the screw thread ejector pin, will wait to change the hobbing cutter centre gripping of cutter ring on preceding, back V type frame on the walking car, uses the slitting saw to carry out cutting operation and change condemned cutter ring under electric putter's effect, solves the technical problem that the cutter ring was changed in the maintenance hobbing cutter.

The utility model provides a scheme that technical problem adopted is:

the cutting tool comprises a rectangular bottom plate, a cutting saw and a walking vehicle, wherein a support of a frame structure is arranged on one side of the rectangular bottom plate, the cutting saw for cutting damaged or scrapped cutter rings is connected onto the support, the other side of the bottom plate is connected with the walking vehicle through an electric push rod, and a foot switch for controlling the electric push rod to drive is arranged at the corner of the bottom plate to adjust and control the running of the walking vehicle.

Preferably, the rear end of the walking vehicle is sequentially provided with a rear V-shaped frame and a front V-shaped frame for clamping the hob, and the outer side of the front V-shaped frame is provided with a threaded ejector rod tightly propped against the side surface of the hob for locking and fixing.

Preferably, the lower part of the walking vehicle is provided with a pulley and moves along a track on the bottom plate under the action of an electric push rod.

Preferably, the cutting saw cuts by using a resin grinding wheel.

Positive effect, because the utility model discloses a resin grinding wheel cutting damages or condemned hobbing cutter ring to the hobbing cutter centre gripping that will treat the maintenance is on the walking car, and electric putter control walking car's speed cuts steadily, fast, and the screw thread ejector pin can be portably swiftly dismantled. The problem that a common cutting saw cannot directly cut the cutter ring is solved, and in addition, various shield machine hob cutter rings can be cut through the threaded ejector rod adjusting structure design, so that the cost is reduced compared with other methods, and the working speed and the production rate are improved. The hob ring is suitable for being used for dismounting the hob ring.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a side view of the present invention.

In the figure, 1, a support, 2, a rear V-shaped frame, 3, a front V-shaped frame, 4, a walking vehicle, 5, a threaded ejector rod, 6, an electric push rod, 7, a hob, 8, a foot switch, 9, a bottom plate and 10, a cutting saw are arranged.

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. It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in the figure, a support 1 with a frame structure is arranged on one side of a rectangular bottom plate 9, a cutting saw 10 for cutting damaged or scrapped knife rings is connected to the support, the other side of the bottom plate is connected with a walking vehicle 4 through an electric push rod 6, and a foot switch 8 for controlling the electric push rod to drive is arranged at the corner of the bottom plate to adjust and control the running of the walking vehicle.

The rear end of the walking vehicle is sequentially provided with a rear V-shaped frame 2 and a front V-shaped frame 3 for clamping the hob 7, and the outer side of the front V-shaped frame is provided with a threaded ejector rod 5 tightly propped against the side surface of the hob for locking and fixing.

The lower part of the walking vehicle is provided with a pulley and moves along a track on the bottom plate under the action of the electric push rod.

The cutting saw adopts a resin grinding wheel to cut.

The utility model discloses a manufacture process:

firstly, a section bar is used as an assembly support, and a cutter base is connected with the support through bolts; the bottom of a motor support of the electric push rod is welded on a bottom plate, and two roller paths are welded on the bottom plate; the walking vehicle is provided with four concave pulleys matched with the roller paths; welding a rear V-shaped frame and a front V-shaped frame which can slide on the walking vehicle, and cutting cutter rings with different sizes; installing a threaded mandril and locking the mandril by a rocking handle; the walking vehicle moves by adopting an electric push rod to carry out propelling and retreating; the connection of the foot switch is convenient to operate.

The utility model discloses a working process:

mounting the cutting saw on a support; two shaft ends of the cutter ring are supported by a V-shaped frame, and the threaded mandril is used for rotatably propping against the end surface of the cutter ring so as to prevent the cutter ring from moving during cutting; the walking vehicle adopts an electric push rod to advance and retreat, the speed is 15mm/min, and the control mode is a pedal switch.

The utility model has the characteristics that:

because the cutting saw adopts the resin piece, so, cut condemned cutter ring fast, the cutter hub is not damaged.

Because the hob is clamped on the walking vehicle, the hob shaft is supported by the front and rear V-shaped frames, and is locked and fixed by the threaded ejector rod and driven by the electric push rod, the cutting position is accurate, and the work is stable and reliable.

Because the foot switch is adopted for controlling the electric appliance, the operation is safe, and the possibility of injury to operators is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A cutting device for changing tunnel boring machine hobbing cutter damages cutter ring, characterized by: one side of a rectangular bottom plate (9) is provided with a support (1) with a frame structure, the support is connected with a cutting saw (10) for cutting damaged or scrapped knife rings, the other side of the bottom plate is connected with a walking vehicle (4) through an electric push rod (6), and the corner of the bottom plate is provided with a foot switch (8) for controlling the electric push rod to drive so as to adjust and control the running of the walking vehicle.

2. The cutting apparatus for replacing a damaged cutter ring of a roller cutter of a tunnel boring machine according to claim 1, wherein: the rear end of the walking vehicle is sequentially provided with a rear V-shaped frame (2) and a front V-shaped frame (3) which clamp the hob (7), and the outer side of the front V-shaped frame is provided with a threaded ejector rod (5) which is tightly propped against the side surface of the hob for locking and fixing.

3. The cutting apparatus for replacing a damaged cutter ring of a roller cutter of a tunnel boring machine according to claim 1, wherein: the lower part of the walking vehicle is provided with a pulley and moves along a track on the bottom plate under the action of the electric push rod.

4. The cutting apparatus for replacing a damaged cutter ring of a roller cutter of a tunnel boring machine according to claim 1, wherein: the cutting saw adopts a resin grinding wheel to cut.