CN216277877U - Cutter fixing device of shield machine - Google Patents

Abstract

The utility model discloses a shield machine cutter fixing device which comprises a shield machine front disc and a shield machine rear disc, wherein an operation cavity is arranged in the shield machine front disc, the shield machine rear disc is fixedly connected with a propelling unit, a plurality of groove pits are arranged on the end face of the shield machine front disc, the groove pits are uniformly distributed by taking the center of the shield machine front disc as a circular point, a plurality of module blocks are fixedly connected in the groove pits, the module blocks are rectangular and are internally provided with cutters, the cutters are movably connected with the module blocks, cavities are arranged in the module blocks, and cooling liquid is filled in the cavities. The utility model can effectively and automatically remove the matched embedded block when the cutter is replaced, does not need manual operation for placement, and achieves the purpose of convenience and rapidness when the embedded block is installed again.

Description

Cutter fixing device of shield machine

Technical Field

The utility model relates to the technical field of shield tunneling machines, in particular to a cutter fixing device of a shield tunneling machine.

Background

The shield machine is a tunnel boring machine using shield method, the shield construction method is that the boring machine constructs tunnel while boring, it is different from open construction method, the international generalized shield machine can also be used in rock stratum, it is different from open (non-shield method) tunnel boring machine, the basic working principle of the shield machine is that a cylindrical steel component advances forward along the tunnel axis and excavates the soil, the shell of the cylindrical component is the shield, it plays the temporary supporting role of the excavated tunnel section which is not lined yet, bears the pressure of the surrounding soil layer, sometimes also bears the underground water pressure and keeps the underground water out, the excavation, soil discharge, lining and other operations are carried out under the shield of the shield.

The shield machine generally comprises a propelling mechanism, a conveying mechanism, a discharging mechanism and an excavating system, the excavating mode is mainly that a cutter on a rotating end face is utilized to excavate and tunnel rock soil, so the cutter is an important part of the shield machine and is directly related to the tunneling result and efficiency, corresponding external clamping blocks need to be discharged when the cutter is generally replaced, then the cutter is replaced, and finally the cutter is installed.

Therefore, we propose a shield tunneling machine tool fixing device to solve the above problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a shield tunneling machine cutter fixing device.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a shield constructs quick-witted cutter fixing device, constructs quick-witted protecgulum and shield and constructs quick-witted back plate including the shield, be equipped with the operation chamber in the shield quick-witted protecgulum, shield quick-witted back plate fixedly connected with propulsion unit of machine, be equipped with a plurality of recess pits on the shield machine protecgulum terminal surface, the recess pit uses shield machine protecgulum center to evenly disperse the setting for the dot, a plurality of module pieces of fixedly connected with in the recess pit, the module piece is the rectangle, and embeds there is the cutter, cutter and module piece swing joint, be equipped with the cavity in the module piece, it has the coolant liquid to fill in the cavity.

Preferably, the end face of the module block is provided with a caulking groove and two notches, the notches are polygonal, the notches are respectively arranged at the upper end and the lower end of the caulking groove and communicated with the caulking groove, the cutter shaft of the cutter is respectively and fixedly connected with two fixed blocks, the fixed blocks are abutted against the edges of the notches, the notches are internally provided with embedded blocks abutted against the fixed blocks, the shield machine front disc is provided with threaded holes penetrating through the embedded blocks and the inner walls of the notches, and the threaded holes are correspondingly provided with fixing bolts.

Preferably, the upper end of the embedding block extends into the cavity, a telescopic rod is fixedly connected to the upper end of the embedding block, a spring is sleeved on the telescopic rod, and the telescopic rod and the spring are both fixedly connected with the inner wall of the cavity.

Preferably, the side of the cutter is coaxially provided with an annular pit groove, a cylinder is arranged in the annular pit groove and is in sliding contact with the annular pit groove, a temperature sensor is arranged in the cylinder, and the cylinder is rotatably connected with the embedded block.

Preferably, the bottom of the column body is away from the bottom of the annular pit groove and is connected with the side wall of the annular pit groove.

Preferably, the chamber is a through rectangle, and the cooling liquid is filled in the whole chamber and is always in contact with the inner wall of the notch and the telescopic rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. the tool is fixed for a long time by the aid of the effect that the fixed block and the embedded block are embedded in the notch together through matching of the telescopic rod, the spring, the fixed block and the embedded block, and meanwhile, the matched embedded block is effectively removed automatically when the tool is replaced, manual operation is not needed for placement, so that the purpose of convenience and rapidness when the tool is installed again is achieved, and efficiency of manual operation is effectively improved;

2. through the cooperation of the cooling liquid and the cavity and the fixed block and the embedded block, the heat of the fixed block which is in direct contact with the cutter is taken away by utilizing the continuous circulating flow of the cooling liquid in the cavity, so that the temperature of the whole cutter in work is always kept at a proper temperature, and then the temperature sensor and other components which work together with the cutter can also play a role in cooling and long-acting work through indirect contact.

Drawings

Fig. 1 is a schematic external structural view of a shield tunneling machine tool fixing device according to the present invention.

Fig. 2 is a cross-sectional view of the module block of fig. 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

In the figure: the shield machine comprises a shield machine front disc 1, a shield machine rear disc 2, a propelling unit 3, a groove pit 4, a module block 5, a cutter 6, a cavity 7, cooling liquid 8, a notch 9, a fixing block 10, an embedding block 11, a threaded hole 12, a fixing bolt 13, a telescopic rod 14, a spring 15, an annular pit groove 16 and a column 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a shield machine cutter fixing device comprises a shield machine front disc 1 and a shield machine rear disc 2, wherein the shield machine front disc 1 is rotatably connected with the shield machine rear disc 2, the shield machine rear disc 2 can control the shield machine front disc 1 to rotate and tunnel, an operation cavity is arranged in the shield machine front disc 1 and used for manually operating the front end of the shield machine front disc 1, workers can enter the shield machine front disc 1 through the operation cavity, and the shield machine rear disc 2 is fixedly connected with a propelling unit 3 which is used for being matched with the propelling unit to tunnel and propel.

Be equipped with a plurality of recess pits 4 on the 1 terminal surface of shield structure machine front bezel and be used for installing cutter 6 or corollary equipment, recess pit 4 uses shield structure machine front bezel 1 center to set up (with the same overall arrangement of traditional shield structure machine) for the dot is evenly dispersed, a plurality of module piece 5 of fixedly connected with in the recess pit 4, be used for replacing traditional direct installation mode, thereby can form the installation of modularization, module piece 5 is the rectangle, and built-in cutter 6 is used for carrying out concrete tunnelling operation, simultaneously the efficiency of cutter 6 is the same with traditional shield structure machine, cutter 6 and module piece 5 swing joint, make it can carry out random dismantlement installation.

The end face of the module block 5 is provided with a caulking groove and two notches 9 for replacing the entering and exiting of the cutter 6, the notches 9 are polygonal so as to facilitate the clamping installation of a matching part, the notches 9 are respectively arranged at the upper end and the lower end of the caulking groove and communicated with the caulking groove, two fixing blocks 10 are respectively and fixedly connected to the cutter shaft of the cutter 6, the fixing blocks 10 are abutted against the edges of the notches 9 for fixing, an embedded block 11 abutted against the fixing block 10 is arranged in the notch 9, the embedded block 11 is suitable for being abutted against the fixing block 10, the difference from the prior art is that a threaded hole 12 penetrating through the inner walls of the embedded block 11 and the notches 9 is arranged on the front disc 1 of the shield machine, a fixing bolt 13 is correspondingly arranged in the threaded hole 12, and the embedded block 11 is fixed by the fixing bolt 13, so that the position of the fixing block 10 is controlled.

The upper end of the embedded block 11 extends into the cavity 7, the upper end of the embedded block 11 is fixedly connected with a telescopic rod 14, a spring 15 is sleeved on the telescopic rod 14, the telescopic rod 14 and the spring 15 are fixedly connected with the inner wall of the cavity 7 and the embedded block (11), the matched embedded block 11 is effectively and automatically removed when the cutter 6 is replaced, manual operation is not needed for installation, the purpose of convenience and rapidness is achieved when the embedded block is installed again, the efficiency of manual operation is effectively improved, an annular pit 16 is coaxially arranged on the side edge of the cutter 6, a column body 17 is arranged in the annular pit 16 and is in sliding contact with the annular pit 16, a temperature sensor is arranged in the column body 17, the column body 17 is rotatably connected with the embedded block 11 and is effectively matched with the installation of the temperature sensor, the bottom of the column body 17 is separated from the bottom of the annular pit 16 and is connected with the side wall of the annular pit 16, the cavity 7 is arranged in the module block 5, the cavity 7 is filled with cooling liquid 8, the cavity 7 is a through rectangle, the cooling liquid 8 is filled in the whole cavity 7 and is always kept in contact with the inner wall of the gap 9 and the telescopic rod 14, the heat of the fixing block in direct contact with the cutter 6 is taken away by utilizing the continuous circulating flow of the cooling liquid 8 in the cavity 7, so that the temperature of the whole cutter 6 is always kept at a proper temperature during working, and then components such as a temperature sensor and the like which work together with the cutter 6 can also play a role in cooling and long-acting work through indirect contact, the temperature sensor preferably adopts an infrared sensing mode, the detection end of the temperature sensor is not directly in contact with the cutter 6 and the cooling liquid 8, and the cooling liquid 8 only acts on the part except the probe of the temperature sensor.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (6)

1. The utility model provides a shield constructs quick-witted cutter fixing device, includes shield constructs quick-witted protecgulum (1) and shield and constructs quick-witted back plate (2), be equipped with the operation chamber in the shield constructs quick-witted protecgulum (1), shield constructs quick-witted back plate (2) fixedly connected with propulsion unit (3), a serial communication port, be equipped with a plurality of recess pits (4) on shield constructs quick-witted protecgulum (1) terminal surface, recess pit (4) use shield to construct quick-witted protecgulum (1) center and evenly disperse the setting for the dot, a plurality of module pieces of fixedly connected with (5) in recess pit (4), module piece (5) are the rectangle, and built-in have cutter (6), cutter (6) and module piece (5) swing joint, be equipped with cavity (7) in module piece (5), it has coolant liquid (8) to fill in cavity (7).

2. The shield tunneling machine cutter fixing device according to claim 1, wherein the end face of the module block (5) is provided with a caulking groove and two notches (9), the notches (9) are polygonal, the notches (9) are respectively arranged at the upper end and the lower end of the caulking groove and are communicated with the caulking groove, the cutter shaft of the cutter (6) is respectively and fixedly connected with two fixing blocks (10), the fixing blocks (10) are abutted against the edge of the notches (9), the notch (9) is provided with an embedding block (11) abutted against the fixing blocks (10), the shield tunneling machine front disc (1) is provided with a threaded hole (12) penetrating through the embedding block (11) and the inner wall of the notch (9), and the threaded hole (12) is correspondingly provided with a fixing bolt (13).

3. The shield tunneling machine cutter fixing device according to claim 2, wherein the upper end of the engagement block (11) extends into the chamber (7), a telescopic rod (14) is fixedly connected to the upper end of the engagement block (11), a spring (15) is sleeved on the telescopic rod (14), and both the telescopic rod (14) and the spring (15) are fixedly connected to the inner wall of the chamber (7) and the engagement block (11).

4. The shield tunneling machine cutter fixing device according to claim 2, wherein the side of the cutter (6) is coaxially provided with an annular pit groove (16), the annular pit groove (16) is provided with a column (17) therein and is in sliding contact with the annular pit groove, the column (17) is provided with a temperature sensor therein, and the column (17) is rotatably connected with the engaging block (11).

5. The shield tunneling machine tool fixing device according to claim 4, wherein the bottom of the column (17) is away from the bottom of the annular pit (16) and meets the side wall of the annular pit (16).

6. The shield tunneling machine tool fixing device according to claim 3, wherein the chamber (7) is a through rectangle, and the cooling liquid (8) is filled in the whole chamber (7) and always kept in contact with the inner wall of the gap (9) and the telescopic rod (14).

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