Tunnel boring machine capable of rapidly replacing cutter head

Abstract

The utility model relates to the technical related field of tunnel boring machines, in particular to a tunnel boring machine with a cutter head capable of being rapidly replaced, which comprises a device body, the device body comprises a boring machine part, a connecting assembly and a hoisting assembly, and the front end of the boring machine part is provided with a boring cutter head. A fixing frame is arranged on the inner side of the tunneling cutter head, a connecting disc is fixed to the inner side of the fixing frame, the connecting assembly is fixed to the front end of the tunneling machine part and fixedly connected with the tunneling cutter head, the hoisting assembly is fixed to the outer side of the tunneling machine part, and the connecting assembly comprises a fixing plate. The fixing plate is arranged in the heading machine in a sliding mode, multiple sets of movable shafts rotationally penetrate through the fixing plate, limiting blocks and synchronous wheels are fixed to the front ends and the rear ends of the movable shafts correspondingly, and motors are connected to the inner sides of the synchronous wheels in a driving mode, so that rapid connection and fixation between the connecting disc and the fixing plate can be achieved; the tunneling cutter head can be conveniently and rapidly mounted or dismounted, operation is easy and convenient, and time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel boring machine technical field related field, especially a kind of tunnel boring machine with quick replaceable cutterhead. BACKGROUND

[0002] Tunnel boring machine is a kind of mechanical equipment for underground engineering construction, mainly used for tunnel, subway, water tunnel construction, it utilizes rotary cutter to excavate, while breaking hole surrounding rock and tunneling, forms entire tunnel section, tunnel boring machine is widely used in tunnel construction and subway construction, and domestic shield machine has reached more than 90% in domestic market share after decades of development;

[0003] The shield type tunnel boring machine in prior art needs to be excavated by front end cutterhead, and most of cutterheads are installed by hoisting equipment assisted by manual work, a large number of fastening bolts need to be connected between cutterhead and tunnel boring machine to ensure the use stability of cutterhead, but the connecting mode is more troublesome, needs to be completed by multiple people and needs to waste a lot of time, so as to reduce cutterhead dismounting efficiency, affect work progress, therefore, we need to upgrade and transform on the basis of prior art to overcome existing problems and deficiencies. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of tunnel boring machine with quick replaceable cutterhead to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] Design a kind of tunnel boring machine with quick replaceable cutterhead, including device body, the device body includes tunnel boring machine piece, connecting assembly and hoisting assembly, the tunnel boring machine piece front end is provided with tunneling cutterhead, the inboard of tunneling cutterhead is provided with fixed frame and fixed with connecting disc in the inboard of fixed frame, the connecting assembly is fixed at the front end of tunnel boring machine piece and is fixedly connected with tunneling cutterhead, the hoisting assembly is fixed at the outside of tunnel boring machine piece, the connecting assembly includes fixed plate, the fixed plate is slidably arranged in tunnel boring machine piece and a plurality of groups of movable shafts are rotatably penetrated in the fixed plate, the movable shaft front and rear ends are respectively fixed with limit block and synchronous wheel, the inboard of synchronous wheel is drivenly connected with motor.

[0007] Preferably, the hoisting assembly includes a sleeve ring fixed on the outer wall of the tunnel boring machine, and four groups of lifting rings are rotatably installed on the sleeve ring.

[0008] Preferably, the inboard of the fixed plate is connected with two groups of hydraulic rods and two groups of positioning rods, the hydraulic rods are symmetrically arranged and fixed in the tunnel boring machine, the positioning slots are formed in the tunnel boring machine, and the positioning rods are movably inserted into the positioning slots.

[0009] Preferably, a protective cover is fixedly installed on the inner side of the fixed plate, and the protective cover is sleeved outside the synchronous wheel and the synchronous belt.

[0010] Preferably, an embedded groove is formed on the outer sleeve ring, rotating shafts are arranged on the two sides of the lifting ring, and the lifting ring is rotationally connected in the embedded groove through the rotating shafts.

[0011] Preferably, connecting holes are formed on the inner wall of the embedded groove, mounting holes are formed on the two sides of the lifting ring, and mounting bolts are screwed between the connecting holes and the mounting holes.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The utility model discloses a connecting assembly, a fixed plate, a hydraulic rod, a positioning rod, a movable shaft, a limiting block, a synchronous wheel, a synchronous belt and a motor are arranged in the device, the fixed plate can be driven to move through the hydraulic rod, then the limiting block is inserted into the connecting disc, the synchronous wheel and the synchronous belt are driven to rotate through the motor, six groups of movable shafts and limiting blocks are rotated and limited on the inner side of the connecting disc, then the quick connection and fixing between the connecting disc and the fixed plate can be realized, the excavating cutter head can be quickly installed or disassembled, a plurality of bolts are not needed for manually installing and fixing, and the operation is simple, convenient and time-saving.

[0014] 2. The utility model discloses a hoisting assembly, an outer sleeve ring, an embedded groove, a connecting hole, a lifting ring, a rotating shaft, a mounting hole and a mounting bolt are arranged in the device, the lifting ring is rotated in the embedded groove through the rotating shaft, the connecting hole and the mounting hole are fixedly connected through the mounting bolt, then the rotation and contraction operation of the lifting ring can be realized, the excavating machine can be hoisted, and the lifting ring can be hidden after hoisting, the lifting ring is prevented from being damaged by external force, and the hoisting flexibility is improved.

[0015] The specific embodiments of the utility model are disclosed in detail in the following description and drawings, and the principle of the utility model can be adopted. It should be understood that the embodiments of the utility model are not limited in scope. The embodiments of the utility model include many changes, modifications and equivalents within the spirit and clauses of the appended claims. DETAILED DESCRIPTION

[0016] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0017] Figure 1 It is the overall structure schematic view according to the utility model;

[0018] Figure 2 is a local structure exploded view according to the utility model;

[0019] Figure 3 is a connecting assembly exploded view according to the utility model;

[0020] Figure 4 is a hoisting assembly exploded view according to the utility model.

[0021] In the figure: 1, device body; 2, tunneling machine part; 21, positioning groove; 3, tunneling cutterhead; 31, fixed frame; 32, connecting disc; 4, connecting assembly; 41, fixed plate; 42, hydraulic rod; 43, positioning rod; 44, movable shaft; 45, limiting block; 46, synchronous wheel; 47, synchronous belt; 48, motor; 49, protective cover; 5, hoisting assembly; 51, outer sleeve ring; 52, inner embedded groove; 53, connecting hole; 54, lifting ring; 55, rotating shaft; 56, mounting hole; 57, mounting bolt. DETAILED DESCRIPTION

[0022] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] As shown in Figure 1 -4, the tunneling machine with quick replaceable cutterhead provided by the embodiment includes a device body 1, the device body 1 contains a tunneling machine part 2, a connecting assembly 4 and a hoisting assembly 5, the tunneling machine part 2 is provided with a tunneling cutterhead 3 at the front end, the tunneling cutterhead 3 is provided with a fixed frame 31 at the inner side and the fixed frame 31 is fixed with a connecting disc 32 at the inner side, the connecting assembly 4 is fixed at the front end of the tunneling machine part 2 and is fixedly connected with the tunneling cutterhead 3, and the hoisting assembly 5 is fixed at the outer side of the tunneling machine part 2;

[0024] In the embodiment, the connecting assembly 4 comprises a fixed plate 41 slidingly arranged in the tunneling machine part 2, a plurality of movable shafts 44 are rotatably arranged on the fixed plate 41, limit blocks 45 and synchronous wheels 46 are respectively fixed at the front and rear ends of the movable shafts 44, an electric motor 48 is drivingly connected to the inner side of the synchronous wheel 46, two groups of hydraulic rods 42 and two groups of positioning rods 43 are connected to the inner side of the fixed plate 41, the hydraulic rods 42 are symmetrically arranged and fixed in the tunneling machine part 2, the positioning slots 21 are formed in the tunneling machine part 2, the positioning rods 43 are movably inserted into the positioning slots 21, a protective cover 49 is fixedly installed on the inner side of the fixed plate 41, the protective cover 49 is sleeved outside the synchronous wheel 46 and the synchronous belt 47, the fixed plate 41 can be driven to move through the hydraulic rods 42, thereby driving the limit blocks 45 to be inserted into the connecting disc 32, the synchronous wheel 46 and the synchronous belt 47 are driven to rotate through the electric motor 48, so that the six groups of movable shafts 44 and the limit blocks 45 are rotated and limited on the inner side of the connecting disc 32, thereby achieving quick connection and fixation between the connecting disc 32 and the fixed plate 41, facilitating quick installation or disassembly of the tunneling cutterhead 3, without manually installing and fixing the tunneling cutterhead 3 through a plurality of groups of bolts, the operation is simple and convenient and time-saving, and the practicability of the equipment is improved.

[0025] In the embodiment, the lifting assembly 5 comprises a sleeve ring 51 fixed on the outer wall of the tunneling machine part 2, four groups of lifting rings 54 are rotatably installed on the sleeve ring 51, an embedded slot 52 is formed on the sleeve ring 51, rotating shafts 55 are arranged on the two sides of the lifting ring 54, the lifting ring 54 is rotatably connected to the embedded slot 52 through the rotating shaft 55, a connecting hole 53 is formed in the inner wall of the embedded slot 52, mounting holes 56 are formed on the two sides of the lifting ring 54, and mounting bolts 57 are screwed between the connecting hole 53 and the mounting hole 56. The lifting ring 54 is driven to rotate in the embedded slot 52 through the rotating shaft 55, and the connecting hole 53 and the mounting hole 56 are fixedly connected through the mounting bolt 57, thereby achieving the rotation and contraction operation of the lifting ring 54, facilitating the lifting of the tunneling machine and the hiding of the lifting ring 54 after lifting, preventing the lifting ring 54 from being damaged by external force, and improving the use flexibility of the lifting part.

[0026] The use principle and use process of the utility model are as follows: when in use, the tunneling cutterhead 3 can be butted on the tunneling machine from the front end, so that the hole positions on the connecting disc 32 are correspondingly inserted into the limit blocks 45 and the movable shafts 44, then the synchronous wheel 46 and the synchronous belt 47 are driven to rotate through the electric motor 48, so that the six groups of movable shafts 44 and the limit blocks 45 are rotated and limited on the inner side of the connecting disc 32, the fixed plate 41 is pulled to contract and the limit blocks 45 are pressed against the connecting disc 32 through the hydraulic rods 42, thereby achieving quick connection and fixation between the connecting disc 32 and the fixed plate 41, facilitating quick installation or disassembly of the tunneling cutterhead 3, when lifting the tunneling machine, the mounting bolt 57 is disassembled, the lifting ring 54 is rotated out of the embedded slot 52 through the rotating shaft 55, and the lifting ring 54 is reset and fixed after the tunneling machine is lifted.

[0027] In the description of the utility model, it is necessary to explain, unless there is explicit stipulation and limitation, the term "installation", "is provided with", "connection" and the like should be broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integral connection, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0028] In the description of the embodiment, the orientation or position relationship of the terms "upper", "lower", "right", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

Claims

1. A tunnel boring machine with quick-change cutterhead, characterized in that: The utility model provides an excavator device, including device body (1), the device body (1) inside contains excavator spare (2), connecting assembly (4) and hoist assembly (5), the excavator spare (2) front end is provided with excavating cutterhead (3), the excavating cutterhead (3) inside is provided with fixed frame (31) and is fixed with connecting disc (32) in fixed frame (31) inside, the connecting assembly (4) is fixed in excavator spare (2) front end and is fixedly connected with excavating cutterhead (3), the hoist assembly (5) is fixed in excavator spare (2) outside, the connecting assembly (4) contains fixed plate (41), the fixed plate (41) is slidably arranged in excavator spare (2) and rotates and penetrates a plurality of groups of movable shafts (44) on fixed plate (41), the movable shaft (44) front and back end is fixed with limit block (45) and synchronous wheel (46) respectively, the synchronous wheel (46) inside drive connection has motor (48).

2. The tunnel boring machine of claim 1, wherein: The hoist assembly (5) includes a sleeve ring (51) fixed on the outer wall of the excavator, and four groups of lifting rings (54) are rotatably installed on the sleeve ring (51).

3. The tunnel boring machine of claim 1, wherein: Two groups of hydraulic rods (42) and two groups of positioning rods (43) are connected to the inside of the fixed plate (41), the hydraulic rods (42) are symmetrically arranged and fixed in the excavator, and a positioning groove (21) is formed in the excavator.

4. A tunnel boring machine with quick change cutterhead as claimed in claim 3 wherein: A protective cover (49) is fixedly installed on the inside of the fixed plate (41), and the protective cover (49) is sleeved on the outside of the synchronous wheel (46) and the synchronous belt (47).

5. The tunnel boring machine of claim 2, wherein: An embedded groove (52) is formed on the sleeve ring (51), rotating shafts (55) are arranged on both sides of the lifting ring (54), and the lifting ring (54) is rotatably connected in the embedded groove (52) through the rotating shafts (55).

6. A tunnel boring machine with quick change cutterhead as claimed in claim 5 wherein: Connecting holes (53) are formed on the inner wall of the embedded groove (52), mounting holes (56) are formed on both sides of the lifting ring (54), and mounting bolts (57) are screwed between the connecting holes (53) and the mounting holes (56).

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