A novel hob cutter system and its installation method

Abstract

The present invention discloses a novel hob tool system and an installation method thereof, which solves the technical problem that the current disc-shaped hob needs the cooperation of multiple people to disassemble, which is time-consuming and labor-intensive, and it is difficult to realize the automation of tool replacement in this installation method. The present invention includes a knife barrel, in which a tool is arranged, and a tool locking mechanism is provided in cooperation with the tool and the knife barrel, and the tool and the knife barrel are matched through a wedge surface. The present invention designs the tool system into three parts, namely the knife barrel, the tool and the tool locking mechanism, which completely changes the traditional tool system structure, making the installation, locking and removal process of the hob simpler, and there is no need to twist various screws to loosen the tool, which facilitates the automation of tool replacement, and provides technical support for the efficient and safe "machine-for-man" operation mode to realize tool detection and tool changing operations.

Description

Technical Field

[0001] The invention relates to the field of tunnel construction, and in particular to a novel roller cutter system for a tunnel boring machine and an installation method thereof. Background Art

[0002] During the construction of full-section tunnel boring machines, the consumption of cutting tools is large and the replacement is frequent. The time for cutting tool detection and cutting tool changing accounts for more than 10% of the tunnel construction cycle. The existing cutting tool detection and cutting tool changing work mainly relies on manual operations. Under the construction environment of deep burial and high water pressure, there are great safety hazards in the operation, and major safety accidents such as casualties are prone to occur. According to statistics, nearly 70% of tunnel construction safety accidents are directly related to manual cutting tool changing operations. The international industry problem of "difficult detection and dangerous cutting tool changing" has become a bottleneck restricting the safety and efficiency of tunnel construction under complex geological conditions. The current huge market demand for subway, highway, railway and other tunnels has put forward higher requirements for the construction efficiency and safety of full-section tunneling equipment.

[0003] At present, the disc cutters of shield machines and TBMs are mainly fixed on the cutter holder by C-shaped blocks and bolts. Although this method has high reliability, it requires the cooperation of multiple people to disassemble, which is time-consuming and labor-intensive. In addition, this installation method makes it difficult to realize the automation of cutter replacement. Therefore, it is imperative to realize cutter detection and cutter replacement operations in an efficient and safe "machine-for-man" operation mode. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the current disc cutter needs the cooperation of multiple people to disassemble, which is time-consuming and labor-intensive, and it is difficult to realize the automation of tool replacement in this installation method. A new type of cutter system and its installation method are provided.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: a new type of hob tool system, including a tool barrel, a tool is arranged in the tool barrel, and a tool locking mechanism is provided in cooperation with the tool and the tool barrel, and the tool and the tool barrel are matched through a wedge surface.

[0006] The knife cylinder is a cylindrical cylinder, and a convex ring and a limiting block are arranged on the inner wall of the knife cylinder, and a limiting sliding groove is formed between the convex ring and the limiting block.

[0007] One side of the limit block is connected to the knife barrel, and the other side is provided with a weight reduction groove; the inner wall of the knife barrel is also provided with a clamping groove, and the upper side of the clamping groove is a wedge-shaped surface No. VI. The slider of the tool locking mechanism extends into the clamping groove; the bottom surface of the limit slide groove is a wedge-shaped surface No. V, and the upper side of the limit slide groove is a wedge-shaped surface No. IV. After the tool is loaded into the knife barrel, it slides in the limit slide groove with the convex ring as support.

[0008] The tool comprises a disc-shaped hob and a cutter shaft seat. The cutter shaft seat is provided with a cutter shaft groove, and the cutter shaft of the disc-shaped hob extends into the cutter shaft groove.

[0009] The notch of the knife shaft groove is provided with a knife shaft seat baffle.

[0010] The knife shaft seat is provided with protruding blocks on opposite sides, the side of the protruding block is a wedge-shaped surface No. I, the upper part of the protruding block is a wedge-shaped surface No. II, and the other two sides of the knife shaft seat are provided with a wedge-shaped surface No. III.

[0011] The tool locking mechanism comprises a clamping block, a sliding block is provided in sliding cooperation with the clamping block, a chuck is provided on the sliding block, a rotating shaft is provided in the middle of the chuck, and a clamping plate is provided on the chuck.

[0012] The clamping block is provided with a No. I slide groove and a No. II slide groove, which are symmetrically arranged. The slider includes a No. I slider and a No. II slider, which cooperates with the No. I slide groove and the No. II slider with the No. II slide groove; the chuck cooperates with the No. I slider and the No. II slider through threads.

[0013] The lower part of the clamping block is provided with a clamping leg, and a No. VII wedge-shaped surface is provided on the clamping leg.

[0014] A clamping block is arranged on the outer side of the sliding block, and a No. VIII wedge-shaped surface is arranged on the outer side of the clamping block.

[0015] A novel method for installing a hob tool system includes the following steps: ① installing the tool: firstly, inserting the tool into a tool barrel, and rotating the tool when reaching a defined position until the tool is in a clamped state in the tool barrel;

[0016] ②Installation of tool locking mechanism: After the tool is installed, install the tool locking mechanism into the tool barrel so that the tool locking mechanism locks the tool to prevent the tool from loosening;

[0017] ③ Clamping of the tool: After the tool locking mechanism is installed, the tool locking mechanism is locked by rotating the chuck, so that the tool, tool locking mechanism and tool barrel are always in a tight fit state.

[0018] When the tool described in step ① is in a clamped state in the tool barrel, the wedge surface No. I on the tool shaft seat is matched with the wedge surface No. V on the tool barrel, and the wedge surface No. II on the tool shaft seat is matched with the wedge surface No. IV on the tool barrel.

[0019] After the tool locking mechanism described in step ② is installed in the tool barrel, the wedge surface No. III on the tool shaft seat and the wedge surface No. VII on the clamping block form a matching surface.

[0020] In step ③, by rotating the chuck, sliders No. I and II are moved along the slide groove of the clamping block, so that sliders No. I and II are simultaneously extended and clamped into the clamping groove in the tool barrel. As the rotating shaft rotates, wedge surface No. VIII cooperates with wedge surface No. VI in the clamping groove until the tool locking mechanism is locked.

[0021] The present invention designs the tool system into three parts, namely the tool barrel, the tool and the tool locking mechanism, which completely changes the traditional tool system structure, making the installation, locking and removal processes of the hob simpler. There is no need to turn various screws to loosen the tool, which facilitates the automation of tool replacement and provides technical support for the efficient and safe "machine-for-people" operation mode to realize tool detection and tool changing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the tool structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the tool locking mechanism of the present invention;

[0025] Figure 4 It is a partial cross-sectional structural schematic diagram of the cooperation between the tool and the tool barrel of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the knife shaft seat of the present invention;

[0027] Figure 6 It is a schematic diagram of the internal structure of the knife barrel of the present invention;

[0028] Figure 7 It is a partial cross-sectional structural schematic diagram of the knife barrel, the knife, and the knife locking mechanism of the present invention;

[0029] Figure 8 It is one of the structural schematic diagrams of the installation process of the present invention;

[0030] Fig. 9 This is the second structural schematic diagram of the installation process of the present invention;

[0031] Fig.10 This is the third structural schematic diagram of the installation process of the present invention;

[0032] Fig.11 This is the fourth structural schematic diagram of the installation process of the present invention;

[0033] Fig.12 It is one of the structural schematic diagrams of the disassembly process of the present invention;

[0034] Fig.13 It is one of the structural schematic diagrams of the disassembly process of the present invention;

[0035] Fig.14 It is one of the structural schematic diagrams of the disassembly process of the present invention;

[0036] Fig.15It is one of the structural schematic diagrams of the disassembly process of the present invention. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figures 1 to 15 As shown, a novel hob tool system includes a tool barrel 7, a tool 6 is arranged in the tool barrel 7, and a tool locking mechanism 8 is provided in cooperation with the tool 6 and the tool barrel 7, wherein the tool 6 and the tool barrel 7 are matched through a wedge surface. The tool locking mechanism 8 realizes the locking function of the tool 6 in the tool barrel 7 through a slider. The tool system of the present invention cooperates with the end effector of the tool changing robot.

[0039] like Figure 6 As shown, the knife cylinder 7 is a cylindrical cylinder, and a convex ring 709 and a limiting block 708 are provided on the inner wall of the knife cylinder 7, and a limiting sliding groove 707 is formed between the convex ring 709 and the limiting block 708.

[0040] One side of the stopper block 708 is connected to the knife barrel 7, and the other side is provided with a weight-reducing groove 705; a clamping groove 706 is also provided on the inner wall of the knife barrel 7, and the upper side of the clamping groove 706 is a wedge-shaped surface 703 of No. VI. The slider of the tool locking mechanism extends into the clamping groove 706; the bottom surface of the stopper slide groove 707 is a wedge-shaped surface 702 of No. V, and the upper side of the stopper slide groove 707 is a wedge-shaped surface 701 of No. IV. After the tool is loaded into the knife barrel, it slides in the stopper slide groove 707 with the convex ring 709 as support. When in use, the stopper block 708 clamps the tool locking mechanism in the knife barrel to prevent the tool locking mechanism from moving and rotating.

[0041] like Figure 2 and Figure 4 As shown, the tool 6 includes a disc-shaped hob 601 and a cutter shaft seat 602 . The cutter shaft seat 602 is provided with a cutter shaft groove 605 , and the cutter shaft 604 of the disc-shaped hob 601 extends into the cutter shaft groove 605 .

[0042] The notch of the knife shaft groove 605 is provided with a knife shaft seat baffle 603. The knife shaft 604 is fixedly connected to the knife shaft seat 602 through the knife shaft seat baffle 603.

[0043] The two opposite sides of the knife shaft seat 602 are provided with protruding blocks 6024, the side of the protruding block 6024 is a wedge-shaped surface 6021 of number I, the upper part of the protruding block is a wedge-shaped surface 6022 of number II, and the other two sides of the knife shaft seat 602 are provided with a wedge-shaped surface 6023 of number III. The side of the protruding block 6024 is a wedge-shaped surface 6021 of number I, which matches with the wedge-shaped surface 702 of number V of the knife cylinder limiting slide groove 707, and the wedge-shaped surface 6022 of number II matches with the wedge-shaped surface 701 of number IV on the upper side of the limiting slide groove 707.

[0044] like Figure 3 As shown, the tool locking mechanism 8 includes a clamping block 801, a slider is provided in sliding cooperation with the clamping block 801, a chuck 804 is provided on the slider, a rotating shaft 803 is provided in the middle of the chuck 804, and a clamping plate 806 is provided on the chuck 804. The slider slides in the slide groove, and the chuck 804 rotates around the rotating shaft 803; the rotating shaft 803 is fixedly connected to the clamping block 801. The clamping plate 806 in the tool locking mechanism 8 includes a clamping plate III 8022 and a clamping plate IV 8012, which respectively cooperate with the clamping plates I and II on the end effector.

[0045] The block 801 is provided with a No. I slide groove 807 and a No. II slide groove 808, and the No. I slide groove 807 and the No. II slide groove 808 are symmetrically arranged. The slider includes a No. I slider 802 and a No. II slider 805, and the No. I slider 802 cooperates with the No. I slide groove 807, and the No. II slider 805 cooperates with the No. II slide groove 808; the chuck 804 cooperates with the No. I slider 802 and the No. II slider 805 through threads.

[0046] The clamping block 801 has a clamping leg 809 at its lower part, and a wedge-shaped surface VII 8011 is provided on the clamping leg 809. The wedge-shaped surface VII 8011 matches with the wedge-shaped surface III 6023 on the knife shaft seat 602.

[0047] The outer side of the slider is provided with a clamping block 8010, and the outer side of the clamping block 8010 is provided with a No. VIII wedge-shaped surface 8051. The clamping block 8010 extends into the clamping groove, and the No. VIII wedge-shaped surface 8051 matches with the No. VI wedge-shaped surface 703 in the clamping groove.

[0048] A novel method for installing a hob tool system includes the following steps: ① installing the tool: first, insert the tool 6 into the tool barrel 7, and rotate the tool 6 when reaching a defined position until the tool 6 is in a clamped state in the tool barrel 7; Figure 8 and Fig. 9 shown.

[0049] ② Installation of tool locking mechanism 8: After the tool is installed, install the tool locking mechanism 8 into the tool barrel 7 so that the tool locking mechanism 8 locks the tool 6 to prevent the tool 6 from loosening; Fig.10 shown.

[0050] ③ Clamping of the tool: After the tool locking mechanism 8 is installed, the tool locking mechanism 8 is locked by rotating the chuck 804, so that the tool, the tool locking mechanism 8 and the tool barrel are always in a tight fit state. Fig.11 shown.

[0051] When the tool 6 described in step ① is in a clamped state in the tool cylinder 7, the wedge surface No. I 6021 on the tool shaft seat 602 and the wedge surface No. V 702 on the tool cylinder 7 are wedge-shaped surface cooperation, and the wedge surface No. II 6022 on the tool shaft seat 602 and the wedge surface No. IV 701 on the tool cylinder 7 are wedge-shaped surface cooperation.

[0052] After the tool locking mechanism 8 described in step ② is installed into the tool barrel 7, the wedge surface No. III 6023 on the tool shaft seat 602 and the wedge surface No. VII 8011 on the clamping block 801 form a matching surface.

[0053] In step ③, by rotating the chuck 804, the slider No. I 802 and the slider No. II 805 are moved along the slide groove of the clamping block 801, so that the slider No. I 802 and the slider No. II 805 are simultaneously extended and clamped into the clamping groove in the knife barrel 7. As the rotating shaft 803 rotates, the wedge surface No. VIII 8051 cooperates with the wedge surface No. VI 703 in the clamping groove until the tool locking mechanism 8 is locked.

[0054] The disassembly process of the tool system of the present invention is the opposite of the installation process: Figures 12 to 15 As shown, when the tool system is disassembled, firstly, the chuck 804 in the tool locking mechanism 8 is twisted to retract the slider No. I 802 and the slider No. II 805 at the same time, and the tool locking mechanism is taken out; then, the tool is rotated to loosen its fit with the tool barrel and the tool is taken out.

Claims

1. A new type of hob tool system, characterized by: It comprises a knife barrel (7), a knife (6) is arranged in the knife barrel (7), a knife locking mechanism (8) is provided in cooperation with the knife (6) and the knife barrel (7), and the knife (6) and the knife barrel (7) are cooperated via a wedge-shaped surface; A convex ring (709) and a limiting block (708) are provided on the inner wall of the knife cylinder (7), and a limiting sliding groove (707) is formed between the convex ring (709) and the limiting block (708); The inner wall of the knife barrel (7) is further provided with a clamping groove (706), the upper side surface of the clamping groove (706) is a wedge-shaped surface No. VI (703); the slide block of the tool locking mechanism extends into the clamping groove (706); the bottom surface of the limiting slide groove (707) is a wedge-shaped surface No. V (702), and the upper side surface of the limiting slide groove (707) is a wedge-shaped surface No. IV (701); after the tool is loaded into the knife barrel, it slides in the limiting slide groove (707) with the convex ring (709) as support; The tool (6) comprises a disc-shaped hob (601) and a tool shaft seat (602); two opposite sides of the tool shaft seat (602) are provided with protruding blocks (6024); the side surface of the protruding block (6024) is a wedge-shaped surface No. I (6021); and the upper part of the protruding block is a wedge-shaped surface No. II (6022); When the tool (6) is in a clamped state in the tool cylinder (7), the wedge surface No. I (6021) on the tool shaft seat (602) and the wedge surface No. V (702) on the tool cylinder (7) are wedge-shaped surface-matched, and the wedge surface No. II (6022) on the tool shaft seat (602) and the wedge surface No. IV (701) on the tool cylinder (7) are wedge-shaped surface-matched.

2. The novel hob tool system according to claim 1 is characterized in that: The knife cylinder (7) is a cylindrical cylinder.

3. The novel hob tool system according to claim 2 is characterized in that: One side of the limit block (708) is connected to the knife cylinder (7), and the other side is provided with a weight-reducing groove (705).

4. The novel hob tool system according to claim 1 is characterized in that: The cutter shaft seat (602) is provided with a cutter shaft groove (605), and the cutter shaft (604) of the disc-shaped hob (601) extends into the cutter shaft groove (605).

5. The novel hob cutter system according to claim 4 is characterized in that: A tool shaft seat baffle (603) is provided at the notch of the tool shaft slot (605).

6. The novel hob tool system according to claim 4 is characterized in that: The other two sides of the knife shaft seat (602) are provided with a number III wedge surface (6023).

7. The novel hob tool system according to claim 1 or 6, characterized in that: The tool locking mechanism (8) comprises a clamping block (801), a sliding block is provided in sliding cooperation with the clamping block (801), a chuck (804) is provided on the sliding block, a rotating shaft (803) is provided in the middle of the chuck (804), and a clamping plate (806) is provided on the chuck (804).

8. The novel hob cutter system according to claim 7, characterized in that: The clamping block (801) is provided with a No. I slide groove (807) and a No. II slide groove (808), and the No. I slide groove (807) and the No. II slide groove (808) are symmetrically arranged. The slider comprises a No. I slide groove (802) and a No. II slide groove (805), and the No. I slide groove (802) cooperates with the No. I slide groove (807), and the No. II slide groove (805) cooperates with the No. II slide groove (808); the chuck (804) cooperates with the No. I slide groove (802) and the No. II slide groove (805) through threads.

9. The novel hob cutter system according to claim 7, characterized in that: The lower part of the clamping block (801) is provided with a clamping leg (809), and the clamping leg (809) is provided with a No. VII wedge-shaped surface (8011).

10. The novel hob cutter system according to claim 7, characterized in that: A locking block (8010) is provided on the outer side of the sliding block, and a No. VIII wedge-shaped surface (8051) is provided on the outer side of the locking block (8010).

11. A method for installing a new hob cutter system according to any one of claims 1 to 10, characterized in that The following steps are involved: ① Installation of the tool: first, the tool (6) is installed into the tool barrel (7), and when the tool (6) reaches a defined position, the tool (6) is rotated until the tool (6) is in a clamped state in the tool barrel (7); ② Installation of the tool locking mechanism (8): After the tool is installed, the tool locking mechanism (8) is installed into the tool barrel (7) so that the tool locking mechanism (8) locks the tool (6) to prevent the tool (6) from loosening; ③ Clamping of the tool: After the tool locking mechanism (8) is installed, the tool locking mechanism (8) is locked by rotating the chuck (804), so that the tool, the tool locking mechanism (8) and the tool barrel are always in a tight fit state.

12. The method for installing the new hob cutter system according to claim 11, characterized in that: When the tool (6) described in step ① is in a clamped state in the tool cylinder (7), the wedge surface No. I (6021) on the tool shaft seat (602) and the wedge surface No. V (702) on the tool cylinder (7) are wedge-shaped surface-matched, and the wedge surface No. II (6022) on the tool shaft seat (602) and the wedge surface No. IV (701) on the tool cylinder (7) are wedge-shaped surface-matched.

13. The method for installing the new hob cutter system according to claim 11, characterized in that: After the tool locking mechanism (8) described in step ② is installed in the tool barrel (7), the wedge surface No. III (6023) on the tool shaft seat (602) and the wedge surface No. VII (8011) on the clamping block (801) form a matching surface.

14. The method for installing the new hob cutter system according to claim 11, characterized in that: In step ③, by rotating the chuck (804), the slider No. I (802) and the slider No. II (805) are moved along the slide groove of the clamping block (801), so that the slider No. I (802) and the slider No. II (805) are simultaneously extended and clamped into the clamping groove in the knife barrel (7). As the rotating shaft (803) rotates, the wedge surface No. VIII (8051) cooperates with the wedge surface No. VI (703) in the clamping groove until the tool locking mechanism (8) is locked.

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