CN-224228677-U - Tool bit structure of pipe jacking machine for water-rich pebble stratum pipe jacking construction

CN224228677UCN 224228677 UCN224228677 UCN 224228677UCN-224228677-U

Abstract

The utility model discloses a tool bit structure of a pipe jacking machine for water-rich pebble stratum pipe jacking construction, which comprises a cutter head and a crushing bin assembly, wherein a plurality of scrapers are fixedly welded on two sides of a supporting block, at least two pairs of scrapers are arranged, the pipe jacking machine can process more soil in the same time by increasing the number of the scrapers, the construction efficiency is improved, meanwhile, the soil among the scrapers can be fully stirred, the construction quality is improved, meanwhile, a plurality of slag inlets are filled on the inner wall of the crushing bin and at least occupy half of the inside of the crushing bin, square through grooves are formed in the inner wall of the other half of the crushing bin, so that slag inlet is more convenient, the crushing efficiency is improved, the occurrence of blockage in the crushing process is prevented, the slag inlets can be effectively prevented, the number of times of manual cleaning is reduced, the cleaning cost is greatly reduced, and the smooth running of crushing work is ensured.

Inventors

HONG MING
LIU BIN
CHEN XIAOBO
CHEN BIN
ZHAO JIAN
CHENG YUANMING
ZHAO CHAOLEI
ZHANG CHUANFU

Assignees

中交天航南方交通建设有限公司

Dates

Publication Date: 20260512
Application Date: 20250522

Claims (4)

1. The cutter head structure of the pipe jacking machine for water-rich pebble stratum pipe jacking construction is characterized by comprising a cutter head and a crushing bin assembly, wherein the cutter head is detachably arranged at the upper end of the crushing bin assembly, the cutter head is integrally in a circular structure, a plurality of square grooves are formed in the cutter head along the diameter direction, hob cutters are movably arranged on the square grooves, U-shaped grooves are formed in the two sides of the square grooves, which are perpendicular to the direction of the square grooves, the U-shaped grooves are fixedly provided with supporting blocks, and a plurality of scrapers are fixedly welded on the two sides of the supporting blocks; The crushing bin assembly comprises a driving motor and a crushing bin, wherein the crushing bin is funnel-shaped, a circular through hole is formed in the bottom end of the inside of the crushing bin, the driving motor is detachably arranged on the circular through hole, a plurality of slag inlets are filled in an array on the inner wall of the crushing bin, the slag inlets at least occupy half of the inside of the crushing bin, and square through grooves are formed in the inner wall of the other half of the crushing bin.
2. The tool bit structure of the pipe jacking machine for water-rich pebble strata pipe jacking construction according to claim 1, wherein at least 5 square grooves are formed, and at least two pairs of scrapers are arranged on two sides of the supporting block.
3. The tool bit structure of the pipe jacking machine for water-rich pebble stratum pipe jacking construction, according to claim 1, is characterized in that a single hob is obliquely arranged on a cutterhead between the scraper and the hob, and the centers of the obliquely arranged hob and the cutterhead are 45 degrees.
4. The tool bit structure of the pipe jacking machine for water-rich pebble stratum pipe jacking construction according to claim 1, wherein the distance between the scrapers is 20cm-30cm, an arc-shaped block is arranged on the periphery of the scraper at the outermost side, and the curvature radius of the arc-shaped block is equal to that of the whole cutter head.

Description

Tool bit structure of pipe jacking machine for water-rich pebble stratum pipe jacking construction Technical Field The utility model belongs to the technical field of push bench, and particularly relates to a tool bit structure of a push bench for push bench construction in a water-rich pebble stratum. Background The pipe jacking machine is mechanical equipment used in municipal underground non-excavation engineering, can complete pavement of roads, railways, rivers, ground buildings, underground structures and various underground pipelines under the condition that a surface layer is not required to be excavated, and is used for jacking tunnels or pipelines to preset positions under the action of the jacking machine; The pipe jacking machine can finish a large amount of work in a short time, and reduces the manpower requirement, thereby reducing the labor cost, greatly improving the progress and quality of engineering and reducing the collateral damage; in addition, the push bench can also keep a good working state under more environmental factors, such as high temperature, thunderstorm, strong wind, heavy snow and other complex environments, and can smoothly complete work. It can be said that the push bench plays a very important role in opening a small tunnel or pipeline. However, when the existing pipe jacking machine is relatively hard or long in working time, the capability of cutting the land is still not high-efficiency and rapid, meanwhile, when the existing pipe jacking machine is long in working time, the cut soil is easy to accumulate in and near the slag discharging holes, so that the soil in the crushing bin is accumulated to cause blockage, the working efficiency of the pipe jacking machine can be greatly reduced, and sometimes even manual cleaning is needed, so that the pipe jacking machine is quite inconvenient. Therefore, a tool bit structure of a pipe jacking machine for water-rich pebble strata pipe jacking construction is needed to solve the problems. Disclosure of utility model In order to solve the technical problems, the utility model designs the tool bit structure of the pipe jacking machine for pipe jacking construction of the water-rich pebble stratum, which can increase the soil cutting capability of the pipe jacking machine and the working efficiency, and can increase the soil discharging capability of equipment, so that soil, sand and stones and the like cannot be accumulated near the slag discharging holes and the slag discharging holes, and the soil in the crushing bin is accumulated to cause blockage, the number of times of manual cleaning is reduced, the cleaning cost is greatly reduced, and the whole cutting process is performed efficiently. The cutter head structure of the water-rich pebble stratum pipe jacking construction pipe jacking machine comprises a cutter head and a crushing bin assembly, wherein the cutter head is detachably arranged at the upper end of the crushing assembly, the cutter head is integrally in a circular structure, a plurality of square grooves are formed in the cutter head along the diameter direction, hob cutters are movably arranged on the square grooves, U-shaped grooves are formed in the two sides of the square grooves, which are perpendicular to the diameter direction of the square grooves, of the cutter head, supporting blocks are fixedly arranged on the U-shaped grooves, and a plurality of doctor cutters are fixedly welded on the two sides of the supporting blocks; The crushing bin assembly comprises a driving motor and a crushing bin, wherein the crushing bin is funnel-shaped, a circular through hole is formed in the bottom end of the inside of the crushing bin, the driving motor is detachably arranged on the circular through hole, a plurality of slag inlets are filled in an array on the inner wall of the crushing bin, and the slag inlets at least occupy half of the inside of the crushing bin; Further, the number of the square grooves is at least 5, and at least two pairs of scrapers are positioned on two sides of the supporting block; Furthermore, a single hob is obliquely arranged on the cutterhead between the scraper and the hob, and the centers of the obliquely arranged hob and the cutterhead are 45 degrees; further, the distance between the scrapers is 20cm-30cm, and the periphery of the scraper at the outermost side is provided with an arc-shaped block, and the curvature radius of the arc-shaped block is equal to that of the whole cutterhead. The beneficial effects of the utility model are as follows: The utility model is characterized in that a plurality of scrapers are fixedly welded on two sides of the supporting block, the scrapers are at least two groups, the pipe jacking machine can process more soil in the same time by increasing the number of the scrapers, the construction efficiency is improved, meanwhile, the soil between the scrapers can be fully stirred, the construction quality is improved, meanwhile, the inner wall of th