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Normal-pressure tool changing cutterhead, shield tunneling machine and tool changing method of normal-pressure tool changing cutterhead

A cutter head and atmospheric pressure technology, which is applied in the fields of earthwork drilling, mechanical equipment, engine components, etc., can solve the problems of low tool change efficiency of the cutter head under atmospheric pressure, and improve the efficiency of shield construction and the safety of tool change. Fast and efficient replacement, more solid sealing effect

Pending Publication Date: 2022-04-15
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes an atmospheric pressure tool changing cutterhead, a shield machine and a tool changing method thereof, which solves the problem of low tool changing efficiency of the atmospheric pressure tool changing cutterhead in the prior art

Method used

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  • Normal-pressure tool changing cutterhead, shield tunneling machine and tool changing method of normal-pressure tool changing cutterhead
  • Normal-pressure tool changing cutterhead, shield tunneling machine and tool changing method of normal-pressure tool changing cutterhead
  • Normal-pressure tool changing cutterhead, shield tunneling machine and tool changing method of normal-pressure tool changing cutterhead

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Embodiment 2

[0038] Example 2, such as figure 2As shown, an atmospheric pressure tool changing cutterhead, on the basis of Embodiment 1, as a preferred solution, the sealed knife chamber 101 is a rectangular shape composed of the front panel 101-1 and the rear shell 101-2 of the cutterhead body 2 Seal the knife compartment. The sealing structure includes a sealing ring groove arranged on the back of the front panel 101-1, a sealing strip 1012 is arranged in the sealing ring groove, and multiple sealing strips 1012 can be arranged according to needs, and the sealing ring groove is arranged on the working surface of the cutter body 2 The through holes on the top are set with the center of the circle to form a uniform seal on the ring surface and improve the sealing effect. As a preferred solution: the front face of the sealed knife chamber 101 is provided with a number of working holes 1011 corresponding to the number of the knife barrel assembly 102, the number of dismounting holes 1016 i...

Embodiment 5

[0046] Embodiment 5: as Figure 9 , 10 As shown, a shield machine includes a hob jaw 4, a main drive 5, and the cutterhead described in Embodiment 4. The main drive 5 is connected to the cutterhead to provide power for the cutterhead to rotate. The main drive 5 is connected with a central rotary joint 3, and the pipelines involved in the atmospheric pressure tool change cutter head 1 are connected through the central rotary joint to avoid pipeline entanglement. The hob jaw 4 cooperates with the cutter 104 on the cutterhead. Specifically: the hob jaw 4 includes a positioning plate 41, the positioning plate is provided with a positioning groove 42 matched with the hob, the back of the positioning plate is provided with a clamping frame 43, the clamping frame can be matched with the tool changing robot, Carry out mechanized intelligent tool change.

Embodiment 6

[0047] Embodiment 6: as Figure 11 As shown, a method for changing a knife of a shield machine described in Embodiment 5, the steps are as follows: including a knife removal process and a knife loading process, wherein the knife removal process is as follows:

[0048] S1: The tool detection device detects the status of the tool online. When the tool is abnormal, the cutter head stops rotating; specifically: the rotation detection device uses a speed sensor to detect whether the tool is rotating. When it is found that the tool cannot perform normal rolling work, the speed sensor returns abnormality The signal is sent to the background controller, and the cutter head stops rotating. The wear detection device uses a hob wear sensor to monitor the wear of the tool. When the wear of the tool exceeds the set value, the hob wear sensor sends back an abnormal signal to the background controller, and the cutter head stops rotating.

[0049] S2: The cutter 104 on the cutter barrel asse...

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Abstract

The invention discloses a normal-pressure tool changing cutterhead, a shield tunneling machine and a tool changing method of the shield tunneling machine. The problems that in the prior art, a normal-pressure tool changing device is low in tool changing efficiency, and sealing is prone to being damaged are solved. The normal-pressure tool changing cutterhead comprises a cutterhead body, a sealing tool chamber is arranged in the cutterhead body, a tool cylinder assembly is arranged in the sealing tool chamber in a sliding mode, a driving mechanism capable of driving a tool apron to move is arranged in the tool cylinder assembly, a tool is detachably arranged on the tool apron, and the tool extends outwards through a through hole formed in the working face of the cutterhead body. And a sealing structure is arranged between the cutter cylinder assembly and the working surface of the sealing cutter chamber. According to the normal-pressure tool changing device, an innovative sliding mode is adopted for switching between a working hole and a disassembling and assembling hole, switching between a working mode and a tool changing mode is completed, the wing plates synchronously move along with the tool cylinder assembly, the working hole is blocked when the tool cylinder assembly leaves the working hole, the gate effect is achieved, it can be guaranteed that the sealing tool chamber does not make contact with external mud, and the working efficiency is improved. The possibility of sealing damage is reduced, and the plugging mode is novel.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to an atmospheric pressure tool changing cutter head, a shield machine and a tool changing method thereof. Background technique [0002] With the rapid development of domestic transportation infrastructure construction, shield construction is more and more used in the construction of underground projects such as urban subways, river-crossing tunnels, and underground oil pipelines due to its safety, speed and efficiency. In the river crossing project, due to the large buried depth of the tunnel, the strong water permeability of the ground, and the high water pressure, mud-water shields are generally used. Since the bottom of the river, the bottom of the river and the bottom of the sea are mostly sand and pebble strata formed by alluvial and diluvial deposits and interbeds of uneven hardness and softness, the tools used for tunneling on the shield machine will wear out quickl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08E21D9/00F16J15/34
Inventor 姜礼杰彭飞虎钱豪文勇亮杨航
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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