Super wear-resistant shield tunneling machine hob cutter ring

Abstract

The utility model relates to the technical field of shield tunneling machines, in particular to a super wear-resistant shield tunneling machine hob cutter ring. The cutter ring comprises a cutter ring body, the surface of the cutter ring body is connected with a first protective shell in a sliding mode, the surface of the first protective shell is fixedly connected with an L-shaped plate, a threaded rod is inserted into the L-shaped plate in a threaded mode, one end of the threaded rod is rotationally connected with a limiting block, and the surface of the cutter ring body is connected with a second protective shell in a sliding mode. A connecting plate is fixedly connected to the surface of the second protective shell, a clamping groove is formed in the surface of the connecting plate, a positioning rod is slidably inserted into the L-shaped plate, one end of the positioning rod is fixedly connected with a limiting block, and a handle is fixedly connected to the end, away from the limiting block, of a screw rod. The problems that when the cutter ring body is transported or placed, due to the fact that the cutter ring body is generally directly exposed in the air, external sundries or particles easily enter the cutter ring body or collide with the cutter ring body, and the cutter ring body is abraded and damaged and cannot be used are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machines, in particular to a super wear-resistant shield machine hob cutter ring. Background Art

[0002] The shield machine is a tunnel boring machine that uses the shield method. The shield construction method is that the tunnel boring machine builds a "shield" for the tunnel while excavating. It is different from the open construction method. When the shield method is used in medium-hard rock formations, the rock is squeezed by the cutter ring to achieve rock breaking and excavation. The cutter ring is a key component of the cutter. The cutter ring should have high mechanical strength, good wear resistance and impact toughness.

[0003] A Chinese patent application CN202220530905.X discloses a cutter ring for a shield machine cutter, and the key points of its technical solution are: 1. This cutter ring for a shield machine cutter is provided with a clamping ring at the lower end of the cutter ring body outside the cutter hub, and a mounting ring is fixedly provided at one end of the cutter ring body, and the inner side of the mounting ring is chamfered, so that when the cutter ring body is inserted into the cutter hub, the chamfer can provide a guide for the insertion of the cutter ring body, so that the cutter ring body is conveniently inserted into the cutter hub; 2. This cutter ring for a shield machine cutter is provided with a step groove on the mounting ring, and the chamfer at the lower end of the mounting ring is located below the step groove, so that the groove on the outer side of the cutter hub is clamped with the step groove, thereby further enhancing its stability.

[0004] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when the cutter ring body is transported or placed, the cutter ring body is usually directly exposed to the air, so external debris or particles can easily enter the inside or collide with it, causing the cutter ring body to be worn and damaged and cannot be used; therefore, in view of the above problems, a super wear-resistant shield machine cutter ring is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art that foreign matter or particles can easily enter the inside or collide, causing the cutter ring body to be worn and damaged and unable to be used, and proposes a super wear-resistant shield machine hob cutter ring.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a super wear-resistant shield machine hob cutter ring, including a cutter ring body, the surface of the cutter ring body is slidably connected to a first protective shell, the surface of the first protective shell is fixedly connected to an L-shaped plate, a screw is inserted into the inner thread of the L-shaped plate, one end of the screw is rotatably connected to a limiting block, the surface of the cutter ring body is slidably connected to a second protective shell, the surface of the second protective shell is fixedly connected to a connecting plate, and a card groove is opened on the surface of the connecting plate.

[0007] The effect achieved by the above components is: it achieves the effect of protecting the surface of the knife ring body, avoiding the knife ring body being directly exposed to the air during transportation or placement, so that external debris or particles can easily enter the interior or collide, causing the knife ring body to be worn and damaged and cannot be used, thereby improving the life of the device.

[0008] Preferably, a positioning rod is slidably inserted in the L-shaped plate, and one end of the positioning rod is fixedly connected to the limit block.

[0009] The effects achieved by the above components are: preventing the limit block from rotating with the rotation of the screw rod, thereby improving the stability of the device.

[0010] Preferably, one end of the screw rod away from the limiting block is fixedly connected with a handle, and the size of the limiting block is matched with the size of the connecting plate slot.

[0011] The effect achieved by the above components is that it is convenient for the staff to rotate the screw rod to drive the limit block to move quickly, thereby improving the practicability of the device.

[0012] Preferably, the arc surface of the second protective shell is fixedly connected to a U-shaped frame, the inner surface of the U-shaped frame is fixedly connected to a long rod, the arc surface of the long rod is rotatably connected to a rotating plate, the surface of the rotating plate is fixedly connected to the L-shaped frame, the surface of the U-shaped frame is fixedly connected to an elliptical plate, an insertion rod is slidably inserted in the elliptical plate, and a limiting groove is provided on the surface of the rotating plate.

[0013] The effect achieved by the above components is to facilitate the staff to move the knife ring body for use.

[0014] Preferably, the arc surface of the long rod is sleeved with two torsion springs, and the two ends of the torsion springs are respectively fixedly connected to the inner surface of the rotating plate and the U-shaped frame.

[0015] The effect achieved by the above components is that the torsion force of the torsion spring drives the rotating plate to move and automatically fit with the surface of the first protective shell, thereby improving the convenience of the device.

[0016] Preferably, one end of the insertion rod is fixedly connected to a mounting block, the arc surface of the insertion rod is sleeved with a spring, and both ends of the spring are respectively fixedly connected to the mounting block and the elliptical plate.

[0017] The effect achieved by the above components is that the elastic force of the spring drives the insertion rod to slide in the elliptical plate and automatically insert into the rotating plate limiting groove, thereby improving the quickness of the device.

[0018] Preferably, the size of the insertion rod is matched with the size of the rotation plate limiting groove, and an anti-slip pad is fixedly connected to the surface of the L-shaped frame.

[0019] The effect achieved by the above components is: to facilitate the operation of the staff to stably pull the L-shaped frame to drive the knife ring body to move.

[0020] In summary, the beneficial effects of the utility model are:

[0021] In the utility model, the surface of the knife ring body is protected, and the knife ring body is prevented from being worn and damaged and unusable due to external debris or particles easily entering the interior or colliding with the knife ring body when being transported or placed, because the knife ring body is usually directly exposed to the air, thereby improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the second protective shell in the utility model;

[0024] Figure 3 For the utility model Figure 1 A magnified image of point A;

[0025] Figure 4 For the utility model Figure 2 Enlarged view of point B.

[0026] Legend: 1. Knife ring body; 2. First protective shell; 3. Second protective shell; 4. L-shaped plate; 5. Screw; 6. Limit block; 7. Connecting plate; 8. Positioning rod; 9. U-shaped frame; 10. Long rod; 11. Turntable; 12. L-shaped frame; 13. Oval plate; 14. Insert rod; 15. Torsion spring; 16. Spring; 17. Anti-slip pad; 18. Handle; 19. Mounting block. DETAILED DESCRIPTION

[0027] Reference Figure 1-4As shown, the utility model provides a technical solution: a super wear-resistant shield machine hob cutter ring, including a cutter ring body 1, a first protective shell 2 is slidably connected to the surface of the cutter ring body 1, an L-shaped plate 4 is fixedly connected to the surface of the first protective shell 2, a screw 5 is inserted into the inner thread of the L-shaped plate 4, one end of the screw 5 is rotatably connected to a limit block 6, a second protective shell 3 is slidably connected to the surface of the cutter ring body 1, a connecting plate 7 is fixedly connected to the surface of the second protective shell 3, a card slot is provided on the surface of the connecting plate 7, a positioning rod 8 is slidably inserted into the L-shaped plate 4, and one end of the positioning rod 8 is fixedly connected to the limit block 6. The screw 5 is rotated to rotate in the L-shaped plate 4, the screw 5 drives the limit block 6 to move, and the limit block 6 drives the positioning rod 8 to slide in the L-shaped plate 4, so that the limit block 6 is prevented from rotating with the rotation of the screw 5, and the stability of the device is improved. The end of the screw 5 away from the limit block 6 is fixedly connected to a handle 18, and the size of the limit block 6 is adapted to the size of the card slot of the connecting plate 7. The handle 18 is turned to drive the screw 5 to rotate in the L-shaped plate 4, so that the staff can turn the screw 5 to drive the limit block 6 to move quickly, which improves the practicality of the device. The arc surface of the second protective shell 3 is fixedly connected to the U-shaped frame 9, and the inner surface of the U-shaped frame 9 is fixedly connected to the long rod 10. The arc surface of the long rod 10 is rotatably connected to the rotating plate 11. The surface of the rotating plate 11 is fixedly connected to the L-shaped frame 12. The surface of the U-shaped frame 9 is fixedly connected to the elliptical plate 13. The elliptical plate 13 is slidably inserted with an insertion rod 14, and the surface of the rotating plate 11 is provided with a limited position groove. Pulling the L-shaped frame 12 drives the rotating plate 11 to rotate on the arc surface of the long rod 10, and pushing the installation block drives the insertion rod 14 to slide in the elliptical plate 13, so that the staff can move the knife ring body 1. The arc surface of the long rod 10 is sleeved with two torsion springs 15, and the two ends of the torsion spring 15 are respectively fixedly connected to the rotating plate 11 and the inner surface of the U-shaped frame 9. Pulling the mounting block 19 drives the plug rod 14 to slide in the elliptical plate 13 until the plug rod 14 is out of the limit groove of the rotating plate 11. The torsion of the torsion spring 15 drives the rotating plate 11 to move and automatically fit with the surface of the first protective shell 2, thereby improving the convenience of the device. One end of the plug rod 14 is fixedly connected with the mounting block 19. The arc surface of the plug rod 14 is covered with a spring 16. The two ends of the spring 16 are respectively fixedly connected with the mounting block 19 and the elliptical plate (13). Pushing the rotating plate 11 to rotate on the arc surface of the long rod 10, the rotating plate 11 is squeezed with the plug rod 14, and the plug rod 14 drives the mounting block 19 to move. At this time, the spring 16 is in a stretched state until the limit groove of the rotating plate 11 is aligned with the position of the plug rod 14. The elastic force of the spring 16 drives the plug rod 14 to slide in the elliptical plate 13 and automatically insert into the limit groove of the rotating plate 11, thereby improving the convenience of the device. The size of the plug rod 14 is compatible with the size of the limit groove of the rotating plate 11. The surface of the L-shaped frame 12 is fixedly connected with an anti-slip pad 17. The L-shaped plate 4 is pulled to drive the anti-skid pad 17 to move, so that the staff can stably pull the L-shaped frame 12 to drive the knife ring body 1 to move.

[0028] Working principle, when the staff needs to protect the knife ring body 1, by pushing the first protective shell 2 and the second protective shell 3 to slide on the surface of the knife ring body 1, turning the handle 18 drives the screw 5 to rotate in the L-shaped plate 4, so that the staff can turn the screw 5 to drive the limit block 6 to move quickly. The screw 5 drives the limit block 6 to move, and the limit block 6 drives the positioning rod 8 to slide in the L-shaped plate 4, thereby avoiding the limit block 6 from rotating with the rotation of the screw 5. When the staff needs to move the knife ring body 1, by pulling the L-shaped frame 12, the rotating plate 11 is driven to rotate on the arc surface of the long rod 10, and the rotating plate 11 is squeezed with the insertion rod 14, and the insertion rod 14 drives the mounting block 19 to move. At this time, the spring 16 is in a stretched state until the position of the limit groove of the rotating plate 11 and the insertion rod 14 is When aligned, the elastic force of the spring 16 drives the insertion rod 14 to slide in the elliptical plate 13 and automatically insert into the limiting groove of the rotating plate 11, so as to facilitate the staff to move and use the knife ring body 1. When the movement is completed and the L-shaped frame 12 needs to be folded, the insertion rod 14 is driven to slide in the elliptical plate 13 by pulling the mounting block 19 until the insertion rod 14 is separated from the limiting groove of the rotating plate 11. The torsion force of the torsion spring 15 drives the rotating plate 11 to move and automatically fit the surface of the first protective shell 2, thereby achieving the effect of protecting the surface of the knife ring body 1 and avoiding the knife ring body 1 from being directly exposed to the air during transportation or placement, so that external debris or particles can easily enter the inside or collide, causing the knife ring body 1 to be worn and damaged and unable to be used, thereby improving the service life of the device.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A super wear-resistant shield machine cutter ring, comprising a cutter ring body (1), characterized in that: The surface of the knife ring body (1) is slidably connected to a first protective shell (2), the surface of the first protective shell (2) is fixedly connected to an L-shaped plate (4), a screw (5) is inserted into the internal thread of the L-shaped plate (4), one end of the screw (5) is rotatably connected to a limiting block (6), the surface of the knife ring body (1) is slidably connected to a second protective shell (3), the surface of the second protective shell (3) is fixedly connected to a connecting plate (7), and a slot is provided on the surface of the connecting plate (7).

2. The super wear-resistant shield machine cutter ring according to claim 1, characterized in that: A positioning rod (8) is slidably inserted into the L-shaped plate (4), and one end of the positioning rod (8) is fixedly connected to the limiting block (6).

3. The super wear-resistant shield machine cutter ring according to claim 1, characterized in that: One end of the screw rod (5) away from the limiting block (6) is fixedly connected to a handle (18), and the size of the limiting block (6) is adapted to the size of the slot of the connecting plate (7).

4. The super wear-resistant shield machine cutter ring according to claim 1, characterized in that: The arc surface of the second protective shell (3) is fixedly connected to a U-shaped frame (9), the inner surface of the U-shaped frame (9) is fixedly connected to a long rod (10), the arc surface of the long rod (10) is rotatably connected to a rotating plate (11), the surface of the rotating plate (11) is fixedly connected to an L-shaped frame (12), the surface of the U-shaped frame (9) is fixedly connected to an elliptical plate (13), an insertion rod (14) is slidably inserted in the elliptical plate (13), and a limiting groove is provided on the surface of the rotating plate (11).

5. The super wear-resistant shield machine cutter ring according to claim 4, characterized in that: The arc surface of the long rod (10) is sleeved with two torsion springs (15), and the two ends of the torsion spring (15) are respectively fixedly connected to the inner surface of the rotating plate (11) and the U-shaped frame (9).

6. The super wear-resistant shield machine cutter ring according to claim 4, characterized in that: One end of the insertion rod (14) is fixedly connected to a mounting block (19), the arc surface of the insertion rod (14) is sleeved with a spring (16), and the two ends of the spring (16) are respectively fixedly connected to the mounting block (19) and the elliptical plate (13).

7. The super wear-resistant shield machine cutter ring according to claim 4, characterized in that: The size of the insertion rod (14) is matched with the size of the limiting groove of the rotating plate (11), and the surface of the L-shaped frame (12) is fixedly connected with an anti-slip pad (17).

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