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Core bag structure hobbing cutter, and use method as well as application thereof

A technology of hob and core pack, which is applied in the direction of earth drilling, mining equipment, tunnels, etc., can solve the problems of no hob bearing capacity, wear resistance improvement, etc., achieve ingenious design concept, increase bearing capacity, and obvious effect Effect

Inactive Publication Date: 2015-01-07
SHANDONG TECHGONG GEOTECHN ENG EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution does not improve the load-bearing capacity and wear resistance of the hob

Method used

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  • Core bag structure hobbing cutter, and use method as well as application thereof
  • Core bag structure hobbing cutter, and use method as well as application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A hob with a core package structure, comprising a cutter shaft 4, a cutter body 2, a three-edged insert cutter ring 1 and an end cover 3, a shaft shoulder 16 is arranged at the center of the cutter shaft 4, and two sides of the shaft shoulder 16 are symmetrically arranged Step 17, the cutter shaft 4 runs through the cutter body 2, and a thrust bearing 12 and a cylindrical roller bearing are arranged between the cutter shaft 4 and the cutter body 2. The cylindrical roller bearing is composed of a cylindrical roller 10 and a jacket 7. The thrust bearings 12 are arranged respectively, and the cylindrical roller bearings are arranged between the thrust bearings 12 and the steps 17;

[0027] One end of the inside of the cutter body 2 is provided with a boss, one end of the outer side of the cutter body 2 is provided with a boss and the other end is provided with a groove, the groove is provided with a retaining ring 8, and the outside of the cutter body 2 is provided with the...

Embodiment 2

[0031] A core-packed structure hob, the structure is as described in Example 1, the difference is that an O-shaped sealing ring 9 is arranged between the cutter body 2 and the cylindrical roller bearing, and an O-shaped sealing ring 9 is arranged between the end cover 3 and the cutter shaft 4. O-ring 11 is arranged. The added O-ring mainly acts as a seal to prevent oil leakage.

Embodiment 3

[0033] A hob with a core-wrapped structure, the structure of which is as described in Embodiment 1, the difference is that the cutter ring is an integral cutter ring not inlaid with alloy. In the actual operation process, the cutter ring can be set as a single-edged or multi-edged cutter ring according to the actual working environment. A thrust pin 13 is arranged between the cutter body 2 and the lock nut 6, and a thrust pin 15 is arranged between the lock nut and the cutter shaft 4, and the thrust pin can effectively prevent the lock nut and the end cap from loosening.

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Abstract

A core bag structure hobbing cutter, and a use method as well as application thereof are disclosed. The core bag structure hobbing cutter comprises a cutter shaft, a cutter body, a cutter ring and an end cover. A shaft shoulder is arranged at the central position of the cutter shaft; steps are symmetrically arranged on the two sides of the shaft shoulder; the cutter shaft runs through the cutter body; thrust bearings are arranged on the two sides of the shaft shoulder respectively; a cylindrical roller bearing is arranged between the thrust bearings and the steps. According to the core bag structure hobbing cutter, the cylindrical roller bearing and the thrust bearings are adopted to replace the traditional bearings, the radial bearing capability of the hobbing cutter is increased by increasing the number of cylindrical rollers, and the axial bearing capability of the hobbing cutter is increased by virtue of the thrust bearings, so that the bearing capability of the whole hobbing cutter is correspondingly increased, the wear resistance of the hobbing cutter is enhanced, and the service life of the hubbing cutter is prolonged.

Description

technical field [0001] The invention relates to a hob with a core-wrapped structure and its use method and application, belonging to the technical field of mining machinery and equipment. Background technique [0002] Our country is a country with mountainous areas. Tunnel excavation can effectively shorten the length of the route. TBM tunnel boring machine is a new type of advanced tunnel boring machine that uses rotary cutters to excavate, and simultaneously breaks the surrounding rock in the tunnel and excavates to form the entire tunnel section. Tunnel construction machinery: Compared with the commonly used methods at present, TBM integrates drilling, tunneling, and support, and uses high-tech such as electronics, information, telemetry, and remote control to guide and monitor all operations, so that the tunneling process is always in the best state. In the world, it has been widely used in water conservancy and hydropower, mining, transportation, municipal, national def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
CPCE21D9/1006E21D9/104
Inventor 张学强王刚任延玲倪景文袁立磊闫国成
Owner SHANDONG TECHGONG GEOTECHN ENG EQUIP CO LTD
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