A breaker tooth plate for breaking up reinforced concrete

Abstract

The application discloses a crusher tooth plate for crushing reinforced concrete, which comprises two tooth plate bodies arranged in a left-right symmetry, an inlet end plate arranged at the lower end of the tooth plate body and an outlet end plate arranged at the upper end of the tooth plate body, pin shaft holes arranged on the inlet end plate and the outlet end plate, a U-shaped groove structure formed by the inlet end plate, the outlet end plate and the tooth plate body, and an inlet reinforced concrete shearing tooth group, an internal concrete shearing tooth group, a middle reinforced shearing tooth group, an internal concrete shearing tooth group and an outlet concrete shearing tooth group which are sequentially arranged in the U-shaped groove between the two tooth plate bodies from the inlet to the outlet through the pin shafts in the pin shaft holes. The application can crush large-diameter concrete blocks and cut off the reinforced steel, and the tooth plate body can be swung to stir the spoil stones at the bottom of the bin, so that the discharge port is prevented from being blocked, and the application has good use effect and can be popularized to other slurry shield reinforced concrete cutting projects.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crusher tooth plate, and particularly relates to a crusher tooth plate for crushing reinforced concrete. BACKGROUND

[0002] The shield machine has the characteristics of fast construction speed, small environmental disturbance and high mechanization degree, and is widely used in urban subway tunnel excavation, and becomes an important equipment for tunnel construction in China and the world. The stratum soil cut by the cutter head enters the slurry chamber during the mud water shield tunneling process, and then is discharged through the slurry pipe at the bottom of the air cushion chamber. Usually, in order to prevent large-diameter stones in the stratum from blocking the discharge channel, a crusher is arranged at the slurry discharge port of the shield machine, mainly in the form of a jaw crusher. On the one hand, the crusher can crush the large stones blocked at the slurry discharge port, so that they can be smoothly discharged from the slurry pipe; on the other hand, the crusher can stir the slurry accumulated at the bottom of the air cushion chamber, so as to prevent the slurry from blocking the chamber and affecting the tunneling.

[0003] The structure and function of the crusher must meet the corresponding geological adaptability conditions, otherwise the crushing capacity of the crusher will be affected, the slurry discharge efficiency of the slurry chamber will be reduced, or problems such as wear of the slurry discharge pipeline and damage to the slurry pump will occur. Since the slurry shield is often used in silt clay, loose sand, stratum with high water content, cross-river and cross-sea projects, the current slurry shield crusher in the project is designed for large stones and gravel in the stratum. With the increasing complexity of urban underground environment, the shield machine often encounters reinforced concrete pile foundations and underground continuous walls during the tunneling process. Compared with general gravel, reinforced concrete has high strength and complex shape, and the conventional crusher is difficult to effectively cut the steel bars, which easily leads to a large amount of accumulation of reinforced concrete, affecting the slurry discharge and tunneling, and also easily causing damage to the structure of the crusher. SUMMARY

[0004] The present application aims at solving the problems of the prior art, and provides a crusher tooth plate for crushing reinforced concrete.

[0005] In order to achieve the above-mentioned purpose, the following technical solutions are adopted in the present application.

[0006] A crusher tooth plate for crushing reinforced concrete, comprising two tooth plate bodies arranged symmetrically left and right, a tooth plate body lower end is provided with an inlet end plate and an upper end is provided with an outlet end plate, the inlet end plate and the outlet end plate are provided with pin shaft holes corresponding, the inlet end plate and the outlet end plate and the tooth plate body form a U-shaped groove structure, the U-shaped grooves of the two tooth plate bodies are sequentially provided with an inlet reinforced gravel shearing tooth group, an internal gravel shearing tooth group, a middle reinforced shearing tooth group, an internal gravel shearing tooth group and an outlet gravel shearing tooth group through the pin shafts in the pin shaft holes from the inlet to the outlet.

[0007] The entrance steel bar broken stone shearing tooth group comprises two L-shaped entrance installation tooth plates arranged left and right, each L-shaped entrance installation tooth plate is composed of an entrance horizontal plate and an entrance vertical plate, the entrance horizontal plate is abutted on the inner side wall of the entrance end plate and is fixed through a pin shaft, and the entrance vertical plate is provided with two entrance broken stone teeth on the side surface facing the middle steel bar broken stone channel.

[0008] The inner end surface of the entrance steel bar shearing tooth extends 40mm beyond the inner end surface of the entrance broken stone tooth, the height of the entrance steel bar shearing tooth is 25mm, and the inner end surface of the entrance steel bar shearing tooth is arranged downwardly inclined by 8°.

[0009] The internal broken stone shearing tooth group comprises two broken stone tooth plates arranged left and right, the broken stone tooth plates are installed in the U-shaped groove between the entrance end plate and the exit end plate through a pin shaft, and the inner end surface of the broken stone tooth plate is provided with an internal broken stone tooth.

[0010] The middle steel bar shearing tooth group comprises two steel bar shearing tooth plates arranged left and right, the steel bar shearing tooth plates are installed in the U-shaped groove between the entrance end plate and the exit end plate through a pin shaft, and the inner end surfaces of the two steel bar shearing tooth plates are staggered and provided with internal steel bar shearing teeth.

[0011] The height of the internal steel bar shearing tooth is 25mm, and the overlapping length of the two internal steel bar shearing teeth is 40mm.

[0012] The inner end surface of the internal steel bar shearing tooth at the lower end is arranged downwardly inclined by 8°, and the inner end surface of the internal steel bar shearing tooth at the upper end is arranged upwardly inclined by 8°.

[0013] The exit broken stone shearing tooth group comprises two L-shaped exit installation tooth plates arranged left and right, each L-shaped exit installation tooth plate is composed of an exit horizontal plate and an exit vertical plate, the exit horizontal plate is abutted on the inner side wall of the exit end plate and is fixed through a pin shaft, and the exit vertical plate is provided with two exit broken stone teeth on the side surface facing the middle steel bar broken stone channel.

[0014] The height of the entrance horizontal plate, the broken stone tooth plate, the steel bar shearing tooth plate and the exit horizontal plate is consistent.

[0015] The application has the advantages that the application can crush large-diameter broken stones and concrete blocks entering the application, cut off steel bars, stir the spoil stones at the bottom of the bin through the swing of the tooth plate body, prevent the blockage of the slag discharge port, has good use effect, and can be popularized to other slurry shield cutting steel reinforced concrete projects. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The figure is a structural schematic diagram of the application;

[0017] Fig. 2 The figure is a schematic diagram of the installation of the application in the crusher.

[0018] In the diagram: 1-tooth plate body; 2-inlet end plate; 3-outlet end plate; 4-inlet steel reinforcement and crushed stone shearing tooth assembly; 5-internal crushed stone shearing tooth assembly; 6-middle steel reinforcement shearing tooth assembly; 7-outlet crushed stone shearing tooth assembly; 8-pin shaft;

[0019] 401-L-shaped entrance mounting toothed plate; 4011-Entrance horizontal plate; 4012-Entrance longitudinal plate; 402-Entrance crushing tooth; 403-Entrance rebar shearing tooth;

[0020] 501 - Crushing tooth plate; 502 - Internal crushing tooth;

[0021] 601 - Rebar shearing toothed plate; 602 - Internal rebar shearing toothed plate;

[0022] 701-L-shaped outlet mounting toothed plate; 7011-Outlet horizontal plate; 7012-Outlet longitudinal plate; 702-Outlet crushing tooth;

[0023] The following will describe in detail, with reference to the accompanying drawings, embodiments of the present invention. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] like Figs. 1-2 As shown, a crusher tooth plate for crushing reinforced concrete includes two tooth plate bodies 1 arranged symmetrically on the left and right. The lower end of the tooth plate body 1 is provided with an inlet end plate 2 and the upper end is provided with an outlet end plate 3. The inlet end plate 2 and the outlet end plate 3 are respectively provided with pin holes. The inlet end plate 2 and the outlet end plate 3 form a U-shaped groove structure with the tooth plate body 1. The inlet steel reinforcement crushing tooth assembly 4, the inner crushing tooth assembly 5, the middle steel reinforcement crushing tooth assembly 6, the inner crushing tooth assembly 7 and the outlet crushing tooth assembly 7 are sequentially installed between the U-shaped grooves of the two tooth plate bodies 1 from the inlet to the outlet direction through the pin 8 in the pin hole.

[0026] The inlet steel reinforcement and crushed stone shearing tooth assembly 4 includes two L-shaped inlet mounting tooth plates 401 arranged on the left and right. Each L-shaped inlet mounting tooth plate 401 is composed of an inlet horizontal plate 4011 and an inlet vertical plate 4012. The inlet horizontal plate 4011 abuts against the inner side wall of the inlet end plate 2 and is fixed by a pin 8. The inlet vertical plate 4012 has two inlet crushing teeth 402 on one side facing the middle steel reinforcement and crushed stone channel. On one side of the inlet vertical plate 4012 facing the middle steel reinforcement and crushed stone channel, an inlet steel reinforcement shearing tooth 403 is provided at the lower end of the two inlet crushing teeth 402.

[0027] The inlet steel bar crushing shearing tooth group 4 is quenched to a hardness greater than HRC50 and a quenching depth greater than 5mm, and must not have cracks or defects that affect strength.

[0028] The inner end face of the entrance steel shear tooth 403 extends 40mm beyond the inner end face of the entrance gravel tooth 402, the height of the entrance steel shear tooth 403 is 25mm, and the inner end face of the entrance steel shear tooth 403 is arranged downwardly with an inclination of 8°.

[0029] The internal gravel shear tooth group 5 comprises two gravel tooth plates 501 arranged left and right, the gravel tooth plates 501 are installed in the U-shaped groove between the entrance end plate 2 and the exit end plate 3 through the pin shaft 8, and the inner end face of the gravel tooth plate 501 is provided with an internal gravel tooth 502.

[0030] The middle steel shear tooth group 6 comprises two steel shear tooth plates 601 arranged left and right, the steel shear tooth plates 601 are installed in the U-shaped groove between the entrance end plate 2 and the exit end plate 3 through the pin shaft 8, and the inner end faces of the two steel shear tooth plates 601 are staggered and provided with internal steel shear teeth 602.

[0031] The hardness of the middle steel shear tooth group 6 after heat treatment is required to be HB=163-207, the tooth surface is subjected to water toughening treatment, and there is no crack or defect affecting the strength.

[0032] The height of the internal steel shear tooth 602 is 25mm, and the overlapping length of the two internal steel shear teeth 602 is 40mm.

[0033] The inner end face of the lower end internal steel shear tooth 602 is arranged downwardly with an inclination of 8°, and the inner end face of the upper end internal steel shear tooth 602 is arranged upwardly with an inclination of 8°.

[0034] The exit gravel shear tooth group 7 comprises two L-shaped exit installation tooth plates 701 arranged left and right, each L-shaped exit installation tooth plate 701 is composed of an exit horizontal plate 7011 and an exit vertical plate 7012, the exit horizontal plate 7011 abuts against the inner side wall of the exit end plate 3 and is fixed through the pin shaft 8, and the exit vertical plate 7012 is provided with two exit gravel teeth 702 on the side surface facing the middle steel gravel channel.

[0035] The heights of the entrance horizontal plate 4011, the gravel tooth plate 501, the steel shear tooth plate 601 and the exit horizontal plate 7011 are consistent.

[0036] The crusher with the tooth plate body 1 is integrally installed on the bottom of the air cushion cabin, the tooth plate body 1 is controlled to open and close through the extension and contraction of the hydraulic oil cylinder, large-size gravel and concrete blocks entering the crusher are crushed, and the steel bars are cut off, at the same time, the tooth plate body 1 swings to stir the spoil stones at the bottom of the bin, so as to prevent the discharge port from being blocked.

[0037] The crusher has good use effect, and through actual test, when the pressure of the oil cylinder reaches 5MPa or above, the steel bars can be reliably cut off, and the discharge port is less blocked, so the crusher can be popularized to other slurry shield cutting steel reinforced concrete projects.

[0038] The application is described above by way of example with reference to the accompanying drawings without limitation to the specifically described embodiments. Any modifications of the method concept and the technical solution of the application, or direct application of the application to other fields without modification, all fall within the scope of the application.

Claims

1. A breaker tooth plate for breaking up reinforced concrete, characterized in that, The utility model provides a double -sided toothed plate body (1) is arranged symmetrically, toothed plate body (1) lower end is equipped with inlet end plate (2) and upper end is equipped with outlet end plate (3), and the corresponding pin shaft hole is set up on inlet end plate (2), outlet end plate (3), and inlet end plate (2), outlet end plate (3) and toothed plate body (1) form U -shaped groove structure, and the U -shaped groove between two toothed plate bodies (1) is sequentially installed with inlet steel broken rock shearing tooth group (4), internal broken rock shearing tooth group (5), middle steel broken rock shearing tooth group (6), internal broken rock shearing tooth group (5) and outlet broken rock shearing tooth group (7) through the pin shaft (8) in the pin shaft hole from the inlet to the outlet direction; Inlet steel broken rock shearing tooth group (4) includes two L -shaped inlet installation toothed plates (401) set left and right, and each L -shaped inlet installation toothed plate (401) is formed by inlet horizontal plate (4011) and inlet vertical plate (4012), the inlet horizontal plate (4011) is abutted on the inner side wall of inlet end plate (2) and is fixed through the pin shaft (8), and the inlet vertical plate (4012) is equipped with two inlet broken rock teeth (402) on the side of the middle steel broken rock channel, and one inlet vertical plate (4012) is equipped with inlet steel shearing tooth (403) on the side of the middle steel broken rock channel at the lower end of two inlet broken rock teeth (402); The inner end surface of inlet steel shearing tooth (403) extends 40mm than the inner end surface of inlet broken rock tooth (402), the height of inlet steel shearing tooth (403) is 25mm, and the inner end surface of inlet steel shearing tooth (403) is set to be inclined downward 8°; Internal broken rock shearing tooth group (5) includes two broken rock toothed plates (501) set left and right, and the broken rock toothed plate (501) is installed in the U -shaped groove between inlet end plate (2) and outlet end plate (3) through the pin shaft (8), and the inner end surface of broken rock toothed plate (501) is equipped with one internal broken rock tooth (502); Middle steel broken rock shearing tooth group (6) includes two steel broken rock toothed plates (601) set left and right, and the steel broken rock toothed plate (601) is installed in the U -shaped groove between inlet end plate (2) and outlet end plate (3) through the pin shaft (8), and the inner end surface of two steel broken rock toothed plates (601) is staggered and provided with internal steel shearing tooth (602); The height of internal steel shearing tooth (602) is 25mm, and the overlap length of two internal steel shearing teeth (602) is 40mm; The inner end surface of lower end internal steel shearing tooth (602) is set to be inclined downward 8°, and the inner end surface of upper end internal steel shearing tooth (602) is set to be inclined upward 8°; Outlet broken rock shearing tooth group (7) includes two L -shaped outlet installation toothed plates (701) set left and right, and each L -shaped outlet installation toothed plate (701) is formed by outlet horizontal plate (7011) and outlet vertical plate (7012), the outlet horizontal plate (7011) is abutted on the inner side wall of outlet end plate (3) and is fixed through the pin shaft (8), and the outlet vertical plate (7012) is equipped with two outlet broken rock teeth (702) on the side of the middle steel broken rock channel; The inlet steel reinforced gravel shearing tooth group (4) is quenched to a hardness greater than HRC50 and a quenching depth greater than 5mm.

2. A breaker tooth plate for breaking reinforced concrete according to claim 1, characterized in that, The heights of the inlet horizontal plate (4011), the gravel tooth plate (501), the steel reinforced shearing tooth plate (601), and the outlet horizontal plate (7011) are consistent.

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