CN-224208178-U - Breaker and contain its entry driving machine

CN224208178UCN 224208178 UCN224208178 UCN 224208178UCN-224208178-U

Abstract

The utility model relates to the technical field of tunnel construction, and particularly provides a crusher and a heading machine comprising the same, wherein the crusher comprises a feeding cabin, a crushing mechanism and a discharging cabin which are sequentially connected; the crushing mechanism comprises a first-stage crushing mechanism and a second-stage crushing mechanism which are sequentially connected, the first-stage crushing mechanism is connected with the feeding cabin, the second-stage crushing mechanism is connected with the discharging cabin, the second-stage crushing mechanism comprises at least two groups of single-tooth roller structures, a flow guide block is arranged above a channel between the two groups of single-tooth roller structures, and a discharging hole of the discharging cabin is connected with a discharging slurry discharging pipe. According to the crusher provided by the utility model, the slag stone with large particle size is coarsely crushed through the primary crushing mechanism, finely crushed through the secondary crushing mechanism, and subjected to two-stage crushing operation, so that the requirement of a special stratum containing a large amount of boulders and rich in sand pebbles on the particle size after slag stone crushing is met, the stagnation and discharge are avoided, in addition, at least two groups of single-toothed roller structures are adopted for crushing the slag stone and sundries, the crushing efficiency is high, and the requirement of a shield tunneling machine on the tunneling efficiency is met.

Inventors

HAN JIALIN
RONG JIN
LIU XUE
XIONG CHENJUN
PENG ZHENGYANG
YANG XU
LAN DIAN
LI GUOZHENG

Assignees

中国铁建重工集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250513

Claims (10)

1. The crusher is characterized by comprising a feeding cabin (1), a crushing mechanism and a discharging cabin (4) which are connected in sequence; the crushing mechanism comprises a primary crushing mechanism (2) and a secondary crushing mechanism (3) which are sequentially connected, the primary crushing mechanism (2) is connected with the feeding cabin (1), and the secondary crushing mechanism (3) is connected with the discharging cabin (4); The secondary crushing mechanism (3) comprises at least two groups of single-tooth roller structures (3.1), and a flow guide block (3.2) is arranged above a channel between the two groups of single-tooth roller structures (3.1); and a discharge hole of the discharge cabin (4) is connected with a discharge slurry discharge pipe.
2. The crusher according to claim 1, characterized in that the feed bin (1) comprises a feed bin body (1.1), a feed inlet connecting flange (1.2) is arranged at a feed inlet of the feed bin body (1.1), a pulp taking port is arranged on the side wall of the feed bin body (1.1), a pulp taking port connecting flange (1.3) is arranged on the pulp taking port, an overhaul port is further arranged on the feed bin body (1.1), and an overhaul door plate (1.4) is arranged at the overhaul port.
3. The crusher according to claim 1, characterized in that the primary crushing mechanism (2) comprises a double-toothed roller structure (2.1) and a primary crushing tank (2.2), the double-toothed roller structure (2.1) being arranged inside the primary crushing tank (2.2); The double-toothed roller structure (2.1) comprises two opposite-rotating first-stage crushing toothed rollers, and a plurality of crushing roller teeth are arranged on the outer walls of the first-stage crushing toothed rollers in a staggered manner along the axial direction of the outer walls of the first-stage crushing toothed rollers.
4. A crusher according to claim 3, characterized in that the two ends of the primary crushing tooth roller are rotatably connected with the primary crushing box (2.2) through bearings, and the bearing seats (2.3) for fixing the bearings are arranged on the two opposite side surfaces of the primary crushing box (2.2); one end of the first-stage crushing tooth roller is connected with a first driving mechanism (2.5) for driving the first-stage crushing tooth roller to rotate through a first connecting sleeve (2.4).
5. The crusher according to claim 1, characterized in that the secondary crushing mechanism (3) further comprises a secondary crushing box (3.3), the single-toothed roller structure (3.1) and the deflector blocks (3.2) being both arranged inside the secondary crushing box (3.3); The single-tooth roller structure (3.1) comprises a secondary crushing tooth roller, wherein a plurality of crushing roller teeth are arranged on the outer wall of the secondary crushing tooth roller in a staggered manner along the axis direction of the secondary crushing tooth roller; The inner wall of the secondary crushing box (3.3) is provided with a fixed cutter component (3.4), and the fixed cutter component (3.4) is matched with the single-tooth roller structure (3.1) and is used for crushing slag stones and sundries; An adjusting piece (3.5) for adjusting the extending length of the fixed cutter part (3.4) is further arranged between the fixed cutter part (3.4) and the inner wall of the secondary crushing box (3.3).
6. The crusher according to claim 5, characterized in that both ends of the secondary crushing tooth roller are rotatably connected with a secondary crushing box (3.3) through bearings, and bearing blocks two (3.6) for fixing the bearings are mounted on opposite sides of the secondary crushing box (3.3); One end of the secondary crushing tooth roller is connected with a driving mechanism II (3.8) for driving the secondary crushing tooth roller to rotate through a connecting sleeve II (3.7).
7. The crusher according to claim 1, characterized in that the discharge cabin (4) comprises a collecting box (4.1), a feed port of the collecting box (4.1) is connected with a discharge port of the secondary crushing mechanism (3), a flushing port is further formed in the collecting box (4.1), a flushing port connecting flange (4.2) is arranged on the flushing port, the discharge port of the collecting box (4.1) is connected with a discharge pulp discharging pipe, and a discharge port connecting flange (4.3) is arranged on the discharge port of the collecting box (4.1).
8. The crusher according to any one of claims 1-7, characterized in that the connection surface of the feed bin (1) and the primary crushing mechanism (2), the connection surface of the primary crushing mechanism (2) and the secondary crushing mechanism (3) and the connection surface of the secondary crushing mechanism (3) and the discharge bin (4) are provided with sealing assemblies (5).
9. The crusher according to any one of claims 1-7, characterized in that the connection surface of the feed bin (1) and the primary crushing mechanism (2), the connection surface of the primary crushing mechanism (2) and the secondary crushing mechanism (3) and the connection surface of the secondary crushing mechanism (3) and the discharge bin (4) are provided with planar pads.
10. A heading machine comprising a crusher as claimed in claim 8 or 9, the input of said crusher being connected to the slurry discharge line of the circulation system of the heading machine, the output of said crusher being connected to the discharge slurry discharge line.

Description

Breaker and contain its entry driving machine Technical Field The utility model relates to the technical field of tunnel construction, in particular to a crusher and a heading machine comprising the same. Background At present, along with the mass construction of tunnels at home and abroad, a heading machine becomes the first choice, and the slurry balance shield machine is widely applied to tunnel engineering with high requirements on river crossing, sea crossing and settlement by virtue of excellent pressure control performance. The air cushion type slurry balance shield machine is generally provided with the clamp type crusher in the air cushion cabin, the crushing efficiency is low, the energy production is low, the clamp type crusher can not crush the water-rich sand pebble stratum, the tunneling speed of the slurry shield machine is not met, the slurry balance shield machine is easy to produce and discharge, the tunneling efficiency of the slurry shield machine is directly limited, meanwhile, the clamp type crusher is arranged in the air cushion cabin, the failure rate is high, and the maintenance is difficult, so that the clamp type crusher is provided with the external crusher to secondarily crush the sand pebble, and is the most effective method for improving the tunneling efficiency of the slurry shield. The slurry shield secondary crusher has a jaw crusher driven by a belt pulley, has high crushing efficiency, large vibration, easy blockage and difficult cleaning, adopts a single-tooth roller crushing structure, has small crushing ratio and low efficiency, adopts a double-tooth roller crusher, has moderate crushing ratio and moderate productivity, and can not meet the crushing requirement of special stratum rich in sand and pebbles containing a large amount of large boulders. In view of the foregoing, there is a great need for a crusher and a heading machine comprising the same, so as to solve the problems in the prior art. Disclosure of utility model The utility model aims to provide a crusher and a heading machine comprising the same, and the specific technical scheme is as follows: a crusher comprises a feeding cabin, a crushing mechanism and a discharging cabin which are connected in sequence; The crushing mechanism comprises a primary crushing mechanism and a secondary crushing mechanism which are sequentially connected, the primary crushing mechanism is connected with the feeding cabin, and the secondary crushing mechanism is connected with the discharging cabin; The secondary crushing mechanism comprises at least two groups of single-tooth roller structures, and a flow guide block is arranged above a channel between the two groups of single-tooth roller structures; and a discharge hole of the discharge cabin is connected with a discharge slurry discharge pipe. Further, the feeding cabin comprises a feeding cabin body, a feeding port connecting flange is arranged at a feeding port of the feeding cabin body, a pulp taking port is arranged on the side wall of the feeding cabin body, a pulp taking port connecting flange is arranged on the pulp taking port, an overhaul port is further arranged on the feeding cabin body, and an overhaul door plate is arranged at the overhaul port. Further, the primary crushing mechanism comprises a double-toothed roller structure and a primary crushing box, and the double-toothed roller structure is arranged in the primary crushing box; The double-toothed roller structure comprises two primary crushing toothed rollers which rotate in opposite directions, and a plurality of crushing roller teeth are arranged on the outer wall of the primary crushing toothed rollers in a staggered manner along the axial direction of the primary crushing toothed rollers. Further, two ends of the first-stage crushing tooth roller are rotatably connected with a first-stage crushing box through bearings, and bearing seats I for fixing the bearings are arranged on two opposite side surfaces of the first-stage crushing box; One end of the first-stage crushing tooth roller is connected with a first driving mechanism for driving the first-stage crushing tooth roller to rotate through a first connecting sleeve. Further, the secondary crushing mechanism further comprises a secondary crushing box, and the single-tooth roller structure and the flow guide block are arranged in the secondary crushing box; The single tooth roller structure comprises a secondary crushing tooth roller, and a plurality of crushing roller teeth are arranged on the outer wall of the secondary crushing tooth roller in a staggered manner along the axis direction of the secondary crushing tooth roller; The inner wall of the secondary crushing box is provided with a fixed cutter component which is matched with the single tooth roller structure and is used for crushing slag stones and sundries; an adjusting piece for adjusting the extension length of the fixed cutter part is further arranged between the fixed cutter part