CN104963692B - A kind of adjustable tools mechanism for shield machine - Google Patents

Abstract

An adjustable cutter mechanism for a shield machine, including a scraper assembly and a reamer assembly, the scraper assembly and the reamer assembly are arranged on the cutter head, and it is characterized in that: the scraper assembly and the reamer Each assembly is provided with four groups, the scraper assembly is arranged on the edge of the cutter head at a circumferential equidistant distance, the reamer assembly is arranged at the middle of the cutter head at a circumferential equidistant distance, and the scraper assembly includes a scraper Main body, two-way oil cylinder, the middle part of the two-way oil cylinder is fixed on the cutter head through the positioning block, the scraper body is arranged on the two ends of the two-way oil cylinder, and the reamer assembly includes a cutter head body, a reducer , a variable motor, a slide rail device, the cutter head body is arranged in the slide rail device, the slide rail device is arranged in the cutter head, the speed reducer is arranged on the rear side of the cutter head body, and the The variable motor is arranged on the rear side of the reducer, and the hydraulic oil pipe is arranged on the rear side of the variable motor. The cutter head of the present invention is adjustable and has stronger adaptability.

Description

An adjustable tool mechanism for shield machine

technical field

The invention relates to the field of cutter manufacturing, in particular to an adjustable cutter mechanism for a shield machine.

Background technique

With the rapid development of the economy, the population of big cities is expanding rapidly, and the traffic pressure of the whole city is also increasing day by day. After expert research and demonstration, the use of subway or light rail is the most effective way to solve the urban traffic pressure. In the construction of subway and light rail , our most commonly used construction machinery equipment is the shield machine. The shield machine tool is the key component of the shield rock-breaking excavation. It is easy to be damaged during the excavation and needs to be replaced frequently. It is related to the opening of the cutterhead, the arrangement of the cutters and the correct selection and maintenance of the cutters.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method to solve the adjustment requirement of the shield machine shield body on the change of the hole cross-sectional area, which can adjust the diameter of the cross-sectional area of the side scraper, so as to realize the tunnel cross-sectional diameter of the tunnel. The size can be adjusted, and it can solve the excavation and crushing of large-diameter pumice stones, boulders and local hard rocks in the shield tunneling of soil. The adjustable cutter mechanism for the shield machine.

The technical problem to be solved by the present invention adopts the following technical solutions to realize:

An adjustable cutter mechanism for a shield machine, including a scraper assembly and a reamer assembly, the scraper assembly and the reamer assembly are arranged on the cutter head, and it is characterized in that: the scraper assembly and the reamer Each assembly is provided with four groups, the scraper assembly is arranged on the edge of the cutter head at a circumferential equidistant distance, the reamer assembly is arranged at the middle of the cutter head at a circumferential equidistant distance, and the scraper assembly includes a scraper Main body, two-way oil cylinder, the middle part of the two-way oil cylinder is fixed on the cutter head through a positioning block, the scraper body is arranged on the two ends of the two-way oil cylinder, and the reamer assembly includes a cutter head body, a reducer , a variable motor, a slide rail device, the cutter head body is arranged in the slide rail device, the slide rail device is arranged in the cutter head, the speed reducer is arranged on the rear side of the cutter head body, and the The variable motor is arranged on the rear side of the reducer, and the hydraulic oil pipe is arranged on the rear side of the variable motor.

Both ends of the two-way oil cylinder are provided with a moving guide rail device and a positioning device, the scraper body is arranged on the positioning device, and the positioning device is arranged on the moving guide rail device, which ensures the stability of the scraper body. more stable.

Both the scraper assembly and the reamer assembly are connected to a central rotary joint, and the central rotary joint is connected to the main hydraulic system, and the power is borrowed from the original shield machine hydraulic system, which is not only convenient, but also simple to manufacture.

When the present invention is in use: when the scraper body undergoes certain wear and tear during daily work, the diameter of the scraper body becomes smaller, so that the scraper body can be pushed through the two-way oil cylinder, and the scraper body can be pushed out directly to continue Use, so that the diameter of the cross-sectional area of the side scraper of the shield machine can be variable; when the reamer assembly is in use, the variable motor adjusts the speed, and the oil cylinder and slide rail device can be telescopically shifted. When the shield machine encounters more difficult hard When the stone is broken, the cutter head body is pushed out through the hydraulic system, and then targeted for crushing, and then the cutter head body is retracted through the hydraulic system.

The beneficial effects of the present invention are: to solve the situation that the diameter of the shield cutter head and the cross-sectional area of the shield body cannot be changed for many years, the tunnel body turns in a small range, and the cross-sectional area of the tunnel body needs to be changed within a certain range. The need to adjust the cross-sectional area of the tunnel when the machine shield enters and exits the hole. At the same time, when the shield machine encounters large-diameter pumice, boulders, and local hard rocks during tunneling, it is easy to increase or decrease the cutting tool instantaneously. The high speed makes it easier to crush and excavate.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a hydraulic oil circuit diagram of the present invention;

Fig. 3 is the structural representation of scraper assembly in the present invention;

Fig. 4 is a schematic diagram of the structure of the reamer assembly in the present invention.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, an adjustable tool mechanism for shield machine, including scraper assembly 1, reamer assembly 2, scraper assembly 1 and reamer assembly 2 Set on the cutter head 3, there are four sets of scraper assembly 1 and reamer assembly 2, the scraper assembly 1 is arranged on the edge of the cutter head 3 at a circumferential equidistant distance, and the reamer assembly 2 is arranged at a circumferential equidistant In the middle of the cutter head 3, the scraper assembly 1 includes a scraper body 11 and a two-way oil cylinder 12. The middle part of the two-way oil cylinder 12 is fixed on the cutter head 3 through a positioning block 13, and the scraper body 11 is arranged on both ends of the two-way oil cylinder 12. The assembly 2 includes a cutter head body 21, a reducer 22, a variable motor 23, and a slide rail device 24. The cutter head body 21 is arranged in the slide rail device 24, the slide rail device 24 is arranged in the cutter head 3, and the reducer 22 is arranged in the On the rear side of the cutter head body 21, the variable motor 23 is arranged on the rear side of the reducer 22, and the hydraulic oil pipe 4 is arranged on the rear side of the variable motor 23. After setting in this way, when the scraper body 11 is in daily work, after a certain wear and tear, the scraper The diameter of the main body 11 becomes smaller, so that the scraper body 11 can be pushed by the two-way oil cylinder 12, and the scraper body 11 can be pushed out directly to continue to use, so that the diameter of the cross-sectional area of the side scraper of the shield machine can be changed; when the reamer When the assembly 2 is in use, the variable motor 23 adjusts the speed, and the oil cylinder and the slide rail device 24 can be telescopically displaced. When the shield machine encounters a relatively difficult hard rock, the cutter head body 21 is pushed out through the hydraulic system, and then For crushing, the cutter head body 21 can be retracted through the hydraulic system. The two ends of the two-way oil cylinder 12 are provided with a moving guide rail device 14 and a positioning device 15. The scraper body 11 is arranged on the positioning device 15, and the positioning device 15 It is arranged on the moving guide rail device 14, which ensures the stability of the scraper body 11 and is more stable. Both the scraper assembly 2 and the reamer assembly 1 are connected to a central rotary joint 5, and the central rotary joint 5 is connected to the main hydraulic system 6. The power is borrowed from the hydraulic system of the original shield machine, which is not only convenient, but also simple to manufacture.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (3)

1. An adjustable cutter mechanism for a shield machine, comprising a scraper assembly and a reamer assembly, and the scraper assembly and the reamer assembly are arranged on the cutter head, characterized in that: the scraper assembly and The reamer assemblies are provided with four groups, the scraper assemblies are arranged on the edge of the cutter head at equal intervals around the circumference, the reamer assemblies are arranged at the middle of the cutter head at equal intervals on the circumference, and the scraper assemblies It includes a scraper body and a two-way oil cylinder. The middle part of the two-way oil cylinder is fixed on the cutter head through a positioning block. The scraper body is arranged at both ends of the two-way oil cylinder. The reamer assembly includes a cutter head body, Reducer, variable motor, slide rail device, the cutter head body is arranged in the slide rail device, the slide rail device is arranged in the cutter head, the described reducer is arranged on the rear side of the cutter head body, the The variable motor mentioned above is arranged on the rear side of the reducer, and the hydraulic oil pipe is arranged on the rear side of the variable variable motor. 2. An adjustable cutter mechanism for a shield machine according to claim 1, characterized in that: the two-way head of the two-way oil cylinder is provided with a moving guide rail device and a positioning device, and the scraper body It is arranged on the positioning device, and the said positioning device is arranged on the moving guide rail device. 3. An adjustable tool mechanism for a shield machine according to claim 1, characterized in that: said scraper assembly and reamer assembly are both connected to a central rotary joint, and said central rotary The joints are connected to the main hydraulic system.