Cutter rapid replacement structure based on tunnel boring machine

Abstract

The utility model relates to the technical field of heading machine cutter installation, and discloses a fast cutter replacement structure based on a tunnel boring machine, which comprises a cutter head main body, a plurality of installation grooves are arranged on one side of the cutter head main body, a plurality of installation plates are fixedly connected in the installation grooves, one side of each installation plate is provided with a connection groove, and the connection grooves are connected with the installation plates. A cutter is slidably connected into the connecting groove, the cutter is placed into the mounting groove, then a fixing bolt is rotated, the fixing bolt drives a cam to rotate, the cam drives a transmission plate to move, and the transmission plate drives a second transmission inclined block to be inserted into a fixing groove in the surface of the cutter through a first transmission inclined block to fix the cutter. And meanwhile, the transmission plate drives the fixing block to be inserted into the fixing groove in the end of the tool to fix the tool, so that portable installation of the tool is achieved, meanwhile, when disassembly needs to be conducted, the tool can be disassembled and assembled in a portable mode only by rotating the fixing bolt reversely, and the tool replacement efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool installation of tunnel boring machines, in particular to a tool rapid replacement structure based on a tunnel boring machine. Background Art

[0002] Tunnel boring machines dig into the ground with cutters mounted on the front of a rotating cutterhead that operates in a pressurized excavation chamber. To replace worn cutters, workers must enter the pressurized chamber. Cutters are replaced under high pressure.

[0003] The cutter is fixed to the cutter disc structure with multiple bolts. During the process of replacing the cutter, the staff needs to remove multiple bolts, remove the worn cutter, and then put the new cutter into the mounting groove on the cutter disc. The cutter is then fixed in the mounting groove by turning multiple fixing bolts. During the entire process of tool replacement, the operation is cumbersome and time-consuming, resulting in low efficiency of tool replacement by the staff.

[0004] Therefore, a tool quick replacement structure based on a tunnel boring machine is proposed to solve the problems in the above-mentioned background technology. Utility Model Content

[0005] The utility model aims to provide a tool quick replacement structure based on a tunnel boring machine to solve the problems in the above-mentioned background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A quick tool replacement structure based on a tunnel boring machine includes a cutter disc body, a plurality of mounting grooves are opened on one side of the cutter disc body, a plurality of mounting plates are fixedly connected in the mounting grooves, a connecting groove is opened on one side of the mounting plate, a tool is slidably connected in the connecting groove, a plurality of fixing grooves are opened on the outer surface of the tool, a functional cavity is opened on the mounting plate, a fixing bolt is threadedly connected in the functional cavity, a cam is fixedly sleeved on the outer surface of the fixing bolt, a transmission plate slidably connected to the functional cavity is slidably connected to the outer surface of the cam, two first transmission bevel blocks are fixedly connected to one side of the transmission plate, a second transmission bevel block slidably connected to the functional cavity is slidably connected to one side of the first transmission bevel block, the second transmission bevel block is slidably connected to the fixing groove, and a spring fixedly connected to the functional cavity is fixedly connected to one side of the second transmission bevel block.

[0008] As a further solution of the utility model: a fixing block sliding with the functional cavity is fixedly connected to one side of the transmission plate, and the fixing block is slidably connected with the fixing groove.

[0009] As a further solution of the utility model: the second transmission bevel block and the fixed block are both clearance-matched with the fixed groove.

[0010] As a further solution of the utility model: an oil groove is opened in the transmission plate, and a plurality of oil injection pipes fixedly connected to the oil groove are fixedly connected to the outer surface of the transmission plate, a hose fixedly connected to the mounting plate is fixedly connected in the oil groove, and one end of the hose is fixedly connected to an oil storage bag fixedly connected to the mounting plate.

[0011] As a further solution of the utility model: an oil inlet pipe is fixedly connected to the outer surface of the oil storage bag, and a plug is threadedly connected to the oil inlet pipe.

[0012] Beneficial effects of the utility model:

[0013] (1) The tool is placed into the installation groove and then the fixing bolt is rotated. The fixing bolt drives the cam to rotate, and the cam drives the transmission plate to move. The transmission plate drives the second transmission bevel block through the first transmission bevel block to insert into the fixing groove on the surface of the tool to fix the tool. At the same time, the transmission plate drives the fixing block to insert into the fixing groove at the end of the tool to fix the tool, thereby realizing portable installation of the tool. At the same time, when disassembly is required, the fixing bolt can be rotated in the opposite direction, thereby realizing portable disassembly and assembly of the tool, which greatly improves the efficiency of tool replacement.

[0014] (2) Lubricating oil is injected into the oil storage bag through the oil inlet pipe, and then the oil storage bag is pressed. Then, the oil storage bag transports the lubricating oil through the hose to the oil groove on the transmission plate under the action of pressure, and then enters the oil injection pipe through the oil groove. Then, the oil is sprayed into the functional cavity through the oil injection pipe. Then, the oil enters the surfaces of the first transmission bevel block, the second transmission bevel block and the fixed block to lubricate them, thereby facilitating the movement of the first transmission bevel block, the second transmission bevel block and the fixed block, facilitating the fixed connection of the tool, and further improving the efficiency of the replacement mechanism in quickly changing the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the external structure of the cutter head body of the utility model;

[0017] Figure 2 This is a front view of the internal structure of the mounting slot and mounting plate of the utility model;

[0018] Figure 3 This is a front view of the external structure of the mounting slot and mounting plate of the utility model;

[0019] Figure 4 This utility model Figure 2 A is an enlarged view of the middle image.

[0020] In the figure: 1. cutter body; 2. mounting groove; 3. mounting plate; 4. connecting groove; 5. cutter; 6. fixing groove; 7. functional cavity; 8. fixing bolt; 9. cam; 10. transmission plate; 11. first transmission bevel block; 12. second transmission bevel block; 13. spring; 14. fixing block; 15. oil tank; 16. oil injection pipe; 17. hose; 18. oil storage bag; 19. oil inlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 4 As shown, the utility model is a tool quick replacement structure based on a tunnel boring machine, including a cutter head body 1, a plurality of mounting grooves 2 are opened on one side of the cutter head body 1, a plurality of mounting plates 3 are fixedly connected in the mounting grooves 2, a connecting groove 4 is opened on one side of the mounting plate 3, a tool 5 is slidably connected in the connecting groove 4, a plurality of fixing grooves 6 are opened on the outer surface of the tool 5, a functional cavity 7 is opened on the mounting plate 3, a fixing bolt 8 is threadedly connected in the functional cavity 7, a cam 9 is fixedly sleeved on the outer surface of the fixing bolt 8, a transmission plate 10 slidably connected to the functional cavity 7 is slidably connected to the outer surface of the cam 9, two first transmission bevel blocks 11 are fixedly connected to one side of the transmission plate 10, a second transmission bevel block 12 slidably connected to the functional cavity 7 is slidably connected to one side of the first transmission bevel block 11, the second transmission bevel block 12 is slidably connected to the fixing groove 6, and a spring 13 fixedly connected to the functional cavity 7 is fixedly connected to one side of the second transmission bevel block 12.

[0024] A fixing block 14 that slides with the functional cavity 7 is fixedly connected to one side of the transmission plate 10 , and the fixing block 14 is slidably connected with the fixing groove 6 .

[0025] The second transmission bevel block 12 and the fixing block 14 are both loosely matched with the fixing groove 6 .

[0026] By placing the tool 5 into the fixing groove 6, and then rotating the fixing bolt 8, the fixing bolt 8 drives the cam 9 to move downward and rotate, at this time the cam 9 slides on the transmission plate 10, and then the cam 9 drives the transmission plate 10 to move, the transmission plate 10 drives the first transmission bevel 11 to move, the first transmission bevel 11 drives the second transmission bevel 12 to move, at this time the second transmission bevel 12 is inserted into the fixing groove 6 on the tool 5 to fix the tool 5, and at the same time the transmission plate 10 drives the fixing block 14 to be inserted into the fixing groove 6 at the end of the tool 5 to fix the tool 5, thereby realizing the portable installation of the tool 5, and at the same time when When disassembly is required, the fixing bolt 8 is rotated in the opposite direction, and then the fixing bolt 8 drives the cam 9 to rotate in the opposite direction. At this time, the cam 9 no longer squeezes the transmission plate 10, and then the second transmission bevel 12 is driven to move out of the fixed groove 6 by the rebound force of the spring 13. At the same time, the second transmission bevel 12 drives the first transmission bevel 11 to move, and the first transmission bevel 11 drives the transmission plate 10 to move, and the transmission plate 10 drives the fixing block 14 to move out of the fixing groove 6, and then the tool 5 is taken out, realizing the portable removal of the tool 5, thereby realizing the portable disassembly and assembly of the tool 5, and greatly improving the efficiency of replacing the tool 5.

[0027] Embodiment 2

[0028] Based on Example 1, please refer to Figure 2-Figure 4 As shown, an oil groove 15 is opened in the transmission plate 10, and a plurality of oil injection pipes 16 fixedly connected to the oil groove 15 are fixedly connected to the outer surface of the transmission plate 10. A hose 17 fixedly connected to the mounting plate 3 is fixedly connected in the oil groove 15, and one end of the hose 17 is fixedly connected to an oil storage bag 18 fixedly connected to the mounting plate 3.

[0029] An oil inlet pipe 19 is fixedly connected to the outer surface of the oil storage bag 18 , and a plug is threadedly connected to the oil inlet pipe 19 .

[0030] Lubricating oil is injected into the oil storage bag 18 through the oil inlet pipe 19, and then the oil storage bag 18 is pressed. Then, the oil storage bag 18 transports the lubricating oil to the oil groove 15 on the transmission plate 10 through the hose 17 under the action of pressure, and then enters the oil injection pipe 16 through the oil groove 15, and then the functional cavity 7 is sprayed with oil through the oil injection pipe 16. Then the oil enters the surfaces of the first transmission bevel block 11, the second transmission bevel block 12 and the fixed block 14 to lubricate them, thereby facilitating the movement of the first transmission bevel block 11, the second transmission bevel block 12 and the fixed block 14, facilitating the fixed connection of the tool, and further improving the efficiency of the replacement mechanism in quickly changing the tool.

[0031] Working principle: by putting the tool 5 into the fixed groove 6, and then by rotating the fixing bolt 8, the fixing bolt 8 drives the cam 9 to move downward and rotate, at this time the cam 9 slides on the transmission plate 10, and then the cam 9 drives the transmission plate 10 to move, the transmission plate 10 drives the first transmission bevel block 11 to move, the first transmission bevel block 11 drives the second transmission bevel block 12 to move, at this time the second transmission bevel block 12 is inserted into the fixed groove 6 on the tool 5 to fix the tool 5, and at the same time the transmission plate 10 drives the fixing block 14 to be inserted into the fixing groove 6 at the end of the tool 5 to fix the tool 5, thereby realizing the portable installation of the tool 5, and at the same time When disassembly is required, the fixing bolt 8 is rotated in the opposite direction, and then the fixing bolt 8 drives the cam 9 to rotate in the opposite direction. At this time, the cam 9 no longer squeezes the transmission plate 10, and then the second transmission bevel 12 is driven to move out of the fixed groove 6 by the rebound force of the spring 13. At the same time, the second transmission bevel 12 drives the first transmission bevel 11 to move, and the first transmission bevel 11 drives the transmission plate 10 to move, and the transmission plate 10 drives the fixing block 14 to move out of the fixed groove 6, and then the tool 5 is taken out, realizing the portable removal of the tool 5, thereby realizing the portable disassembly and assembly of the tool 5, and greatly improving the replacement efficiency of the tool 5.

[0032] Lubricating oil is injected into the oil storage bag 18 through the oil inlet pipe 19, and then the oil storage bag 18 is pressed. Then, the oil storage bag 18 transports the lubricating oil to the oil groove 15 on the transmission plate 10 through the hose 17 under the action of pressure, and then enters the oil injection pipe 16 through the oil groove 15, and then the functional cavity 7 is sprayed with oil through the oil injection pipe 16. Then the oil enters the surfaces of the first transmission bevel block 11, the second transmission bevel block 12 and the fixed block 14 to lubricate them, thereby facilitating the movement of the first transmission bevel block 11, the second transmission bevel block 12 and the fixed block 14, facilitating the fixed connection of the tool, and further improving the efficiency of the replacement mechanism in quickly changing the tool.

[0033] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A tool quick-change structure for a tunnel boring machine, comprising a cutter head body (1), characterized in that: A plurality of mounting grooves (2) are provided on one side of the cutter disc body (1), a plurality of mounting plates (3) are fixedly connected in the mounting grooves (2), a connection groove (4) is provided on one side of the mounting plate (3), a cutter (5) is slidably connected in the connection groove (4), a plurality of fixing grooves (6) are provided on the outer surface of the cutter (5), a functional cavity (7) is provided on the mounting plate (3), a fixing bolt (8) is threadedly connected in the functional cavity (7), and a cam (9) is fixedly sleeved on the outer surface of the fixing bolt (8). ), the outer surface of the cam (9) is slidably connected to a transmission plate (10) slidably connected to the functional chamber (7), one side of the transmission plate (10) is fixedly connected to two first transmission bevel blocks (11), one side of the first transmission bevel blocks (11) is slidably connected to a second transmission bevel block (12) slidably connected to the functional chamber (7), the second transmission bevel block (12) is slidably connected to the fixed groove (6), and one side of the second transmission bevel block (12) is fixedly connected to a spring (13) fixedly connected to the functional chamber (7).

2. The tool quick replacement structure based on a tunnel boring machine according to claim 1 is characterized in that: A fixed block (14) that slides with the functional cavity (7) is fixedly connected to one side of the transmission plate (10), and the fixed block (14) is slidably connected with the fixed groove (6).

3. The tool quick replacement structure based on a tunnel boring machine according to claim 2 is characterized in that: The second transmission bevel block (12) and the fixed block (14) are both clearance-matched with the fixed groove (6).

4. The tool quick replacement structure based on a tunnel boring machine according to claim 1 is characterized in that: An oil groove (15) is provided in the transmission plate (10), a plurality of oil injection pipes (16) fixedly connected to the oil groove (15) are fixedly connected to the outer surface of the transmission plate (10), a hose (17) fixedly connected to the mounting plate (3) is fixedly connected to the oil groove (15), and one end of the hose (17) is fixedly connected to an oil storage bag (18) fixedly connected to the mounting plate (3).

5. The tool quick replacement structure based on a tunnel boring machine according to claim 4 is characterized in that: An oil inlet pipe (19) is fixedly connected to the outer surface of the oil storage bag (18), and a plug is threadedly connected to the oil inlet pipe (19).

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