Normal-pressure cutterhead crushing device and using method

Abstract

The invention relates to the technical field of tunnel construction, in particular to a crushing device and a using method, and solves the problems that in the prior art, the crushing direction is limited, and free boulders are difficult to treat. The device comprises a crushing cylinder, the crushing cylinder is detachably connected with a sealing seat of a normal-pressure cutter changing device on a cutter head, a swing assembly is arranged in the crushing cylinder, a rock breaking assembly is arranged on the swing assembly, the rock breaking assembly and the crushing cylinder are movably arranged, and the head of the rock breaking assembly can stretch out of the crushing cylinder. The crushing device has the beneficial effects that when the crushing device is used, the direction of the rock breaking assembly can be adjusted through the swing assembly, so that the rock breaking assembly can crush boulders near the sealing seat, the working range of the crushing device is enlarged, and the working condition limitation is reduced; and the crushing cylinder is detachably connected with a sealing seat on the normal-pressure tool changing device, so that the crushing device can be used as a module tool.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a crushing device and a use method thereof. Background Art

[0002] As tunnel projects gradually move towards deeper burial depths and high water pressure formations, the formations encountered are becoming more and more complex. When the tunnel boring machine encounters large pebbles, boulders and other formations, due to the large particle size of the pebbles and the limited particle size of the screw machine, such large pebbles can only be kept in front of the cutterhead and discharged after being crushed by the cutterhead tools. However, since the large pebbles are not fixed, they are easy to break away from the face and enter the mud and water bin, and the tools cannot crush them. In addition, during the rotation of the cutterhead, the large pebbles damage the tools and the cutterhead structure, which in turn causes blockage and affects the excavation of the equipment. In recent years, with the development of science and technology, cutterheads with normal pressure tool change functions have emerged. Although they can change tools at normal pressure, they are still helpless against a large number of abnormal tool damage and structural wear.

[0003] The patent with publication number CN117514225A in the prior art discloses a soil bin rock crushing device for a slurry shield machine, including a secondary hydraulic push rod device, a hydraulic splitting device and a drilling device. The secondary hydraulic push rod device includes a main hydraulic push rod, a push rod support, a rotating motor, an auxiliary hydraulic cylinder mounting seat and an auxiliary hydraulic cylinder. One end of the main hydraulic push rod is fixed on the push rod support, and a rotating motor is provided at its main output end. The output shaft of the rotating motor is connected to the auxiliary hydraulic cylinder mounting seat, and a thrust cylinder is arranged in each cylinder on both sides of the auxiliary hydraulic cylinder mounting seat; the drilling device and the hydraulic splitting device are respectively connected through the thrust cylinder; the secondary hydraulic push rod device is fixed to the rear wall of the soil bin through the push rod support, and the rotating motor drives the auxiliary hydraulic cylinder mounting seat to rotate.

[0004] The above-mentioned crushing device drills and splits larger boulders multiple times to reduce the size of the boulders and reduce the difficulty of removing the boulders. However, when the crushing device is in use, the direction of the crushing device is fixed, and the crushing device can only crush the boulders facing the position of the device. The working range is small, the working conditions of the device are limited, and it is difficult to handle free boulders. Summary of the invention

[0005] The present invention provides a normal pressure cutter disc crushing device and a use method thereof, which solves the problem in the prior art that the crushing direction is limited and it is difficult to process loose boulders.

[0006] The technical solution of the present invention is achieved in this way: A normal pressure cutter disc crushing device includes a crushing barrel, which is detachably connected to a sealing seat of a normal pressure cutter changing device on the cutter disc, a swing assembly is provided in the crushing barrel, a rock breaking assembly is provided on the swing assembly, the rock breaking assembly and the crushing barrel are movably arranged, and the head of the rock breaking assembly can extend out of the crushing barrel. When the crushing device is in use, the direction of the rock breaking assembly can be adjusted by the swing assembly, so that the rock breaking assembly can crush boulders near the sealing seat, thereby increasing the working range of the crushing device and reducing working condition restrictions; in addition, the crushing device can be used as a modular tooling, and when boulders need to be crushed, the crushing device is installed on the sealing seat of the normal pressure cutter changing device. After the boulders are crushed, the crushing device can be disassembled and the cutter can be reinstalled without changing the existing structure of the cutter disc, thereby enhancing the applicability of the device.

[0007] The swing assembly includes a spherical swing member and a pressure block. An arc step is provided in the crushing barrel. The pressure block is detachably connected to the crushing barrel. The arc step cooperates with the pressure block to limit the position of the spherical swing member. The pressure block is an annular member. The pressure block is connected to the crushing barrel by a fixing bolt. The arc step and the pressure block are provided with arc surfaces arranged opposite to each other. After the pressure block is connected to the crushing barrel, the two arc surfaces limit the position of the spherical swing member, and the spherical swing member can swing.

[0008] A spherical sealing assembly is provided between the arc surface step and the spherical swinging member. The spherical sealing assembly seals the spherical swinging member and the crushing cylinder to ensure the water and soil pressure in front of the cutter disc.

[0009] The spherical swinging member is provided with a through hole, and the head of the rock breaking component is inserted into the through hole. The head of the rock breaking component passes through the through hole and extends out of the front end of the crushing cylinder, so that the rock breaking component can crush the isolated rocks at the front end of the cutter disc.

[0010] The spherical swinging member is provided with a sliding sealing assembly, which corresponds to the position of the through hole and seals with the head of the crushing device. The sliding sealing assembly seals the through hole and the rock breaking assembly to ensure the water and soil pressure on the front panel of the cutter head.

[0011] The crushing cylinder is also provided with a driving assembly, which is connected to the swinging assembly. The driving assembly can adjust and support the swinging angle of the spherical swinging member. Before the boulder is crushed, the driving assembly adjusts the swinging angle of the spherical swinging member. During the boulder crushing process, the driving assembly keeps the rock breaking assembly in a stable direction, ensuring that the rock breaking assembly can crush the boulder, avoiding slippage between the head of the rock breaking assembly and the boulder, and ensuring the boulder crushing efficiency.

[0012] The driving assembly includes a plurality of telescopic oil cylinders, one end of which is movably connected to the inner wall of the crushing barrel, and the other end of which is movably connected to the spherical swinging member; the telescopic oil cylinders are arranged in a centrally symmetrical manner in the crushing barrel. The telescopic oil cylinders are matched with the oil cylinders through oil supply pipelines, and the telescopic oil cylinders can drive the spherical swinging member to swing to a certain angle when they are extended and retracted; the plurality of telescopic oil cylinders work together to make the spherical swinging member swing accurately at an angle, and at the same time ensure that the telescopic oil cylinders provide stable support for the spherical swinging member after they are extended and retracted.

[0013] The front end opening of the crushing barrel is a trumpet-shaped opening, which can further expand the swing range of the head of the rock breaking component, thereby expanding the working range of the crushing device.

[0014] A method for using a normal pressure cutter disc crushing device, comprising: S1, determine the corresponding position of the lone stone in front of the cutter disc and the cutter disc; find the position of the cutter barrel with a normal pressure cutter changing device that is closest to the lone stone; S2, using the normal pressure tool changing device at the corresponding position of the cutter head to remove the excavation cutter barrel from the sealing seat, and connect the crushing barrel to the sealing seat; S3, adjusting the direction of the rock breaking assembly by swinging the assembly so that the rock breaking assembly faces the direction of the boulder; the user adjusts the direction of the rock breaking assembly by adjusting the tail of the rock breaking assembly; S4, start the rock breaking assembly to break the isolated rock; the user pushes the rock breaking assembly forward in the through hole to break the isolated rock, S5, repeating S3 and S4 to perform the boulder crushing operation in multiple directions until the size of the boulder within the working range of the crushing device meets the use requirements of the slurry discharge component; S6, use the normal pressure tool changing device to replace the crushing barrel with the excavation tool barrel; the rock crushing is completed.

[0015] In S3, the spherical swing member in the swing assembly is driven to rotate by the extension and retraction of each telescopic oil cylinder in the driving assembly, and the direction of the rock breaking assembly is adjusted by the rotation of the spherical swing member.

[0016] The beneficial effects of the present invention are as follows: 1. When the crushing device is in use, the direction of the rock breaking component can be adjusted by the swing component, so that the rock breaking component can crush the isolated rocks near the sealing seat, increase the working range of the crushing device, and reduce the working condition restrictions.

[0017] 2. The crushing cylinder and the sealing seat on the normal pressure tool changing device are detachably connected, so that the crushing device can be used as a modular tooling. When it is necessary to crush boulders, the crushing device is installed on the sealing seat of the normal pressure tool changing device. After the boulder crushing is completed, the crushing device can be removed and the tool can be reinstalled without changing the existing structure of the cutter disc, thereby enhancing the applicability of the device.

[0018] 3. A driving assembly connected to the spherical swinging part is arranged in the crushing barrel; the driving assembly can adjust the swinging angle of the spherical swinging part before the boulder is crushed; during the boulder crushing process, the driving assembly can keep the direction of the rock breaking assembly stable, ensure that the rock breaking assembly can crush the boulder, avoid slipping between the head of the rock breaking assembly and the boulder, and ensure the efficiency of the boulder crushing.

[0019] 4. A trumpet-shaped opening is provided at the front end of the crushing barrel, which prevents the head of the rock breaking component from colliding with the opening of the crushing barrel when the rock breaking component swings, thereby further expanding the swing range of the head of the rock breaking component and further expanding the working range of the crushing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of a normal pressure cutter disc crushing device of the present invention; Figure 2 This is a schematic diagram of installing the crushing device on the cutter head; Figure 3 It is a schematic diagram of the use of the crushing device; Figure 4 This is a schematic diagram of installing a rotating seal in a crushing barrel; Figure 5 This is a schematic diagram of the installation of the rotating device; Figure 6 This is a schematic diagram of the installation of the pressure block and the cylinder base; Figure 7 This is a schematic diagram of the sealing device installation; Figure 8 This is a schematic diagram of rock breaking component installation; Fig. 9 It is a schematic diagram of the connection between the crushing device and the sealing seat; Fig.10 This is a schematic diagram of the installation of the telescopic cylinder; Fig.11 for Fig.10 Schematic diagram of the structure in direction A.

[0022] In the figure: 1. Crushing barrel, 2. Spherical swing part, 3. Sliding seal assembly, 4. Pressure block, 5. Rock breaking assembly, 6. Fixing bolt, 7. Sealing seat, 8. Spherical seal assembly, 9. Telescopic cylinder, 10. Cylinder seat, 11. Cylinder accessories, 12. Arc step, 13. Cutter head. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1, as Figure 1 , Figure 2 As shown, a normal pressure cutter disc crushing device comprises a crushing barrel 1, which is detachably connected to a sealing seat 7 of a normal pressure cutter changing device on a cutter disc 13, a swinging assembly is provided in the crushing barrel 1, a rock breaking assembly 5 is provided on the swinging assembly, the rock breaking assembly 5 is movably arranged with the crushing barrel 1, and the head of the rock breaking assembly 5 can extend out of the crushing barrel 1. The rock breaking assembly 5 is any one of a pneumatic pick, an impact drill and an electric hammer. When the crushing device is used, the rock breaking assembly 5 can be adjusted in direction by the swinging assembly. In this embodiment, the user pushes the rock breaking assembly 5 to swing and adjust the direction so that the rock breaking assembly 5 faces the direction of the boulder, and then the user operates the rock breaking assembly 5 to move forward to crush the boulder; the setting of the swinging assembly effectively increases the working range of the crushing device, so that the rock breaking assembly 5 can crush the boulder near the cutter barrel, reducing the working condition restrictions.

[0025] In addition, the crushing barrel 1 is detachably connected to the sealing seat 7 on the normal pressure tool changing device, so that the crushing device can be used as a modular tool; specifically, when boulder crushing is required, the crushing device is installed on the sealing seat 7 of the normal pressure tool changing device. After the boulder crushing is completed, the crushing device can be removed and the tool can be reinstalled so that the cutter disc can continue to advance forward; and the modular structure will not change the existing structure of the cutter disc, so that the crushing device can be applied to different cutter discs, thereby enhancing the applicability of the device; at the same time, it is convenient to carry out the maintenance of the crushing device.

[0026] Embodiment 2, based on embodiment 1, a normal pressure cutter disc crushing device, such as Fig.10 , Fig.11 As shown, the swing assembly includes a spherical swing member 2 and a pressure block 4. A curved step 12 is provided in the crushing barrel 1. The pressure block 4 is detachably connected to the crushing barrel 1. The curved step 12 cooperates with the pressure block 4 to limit the spherical swing member 2. The pressure block 4 is an annular member. The pressure block 4 is connected to the crushing barrel 1 through a fixing bolt 6. The curved step 12 and the pressure block 4 are provided with curved surfaces arranged opposite to each other. After the pressure block 4 is connected to the crushing barrel 1, the two curved surfaces limit the spherical swing member 2, and the spherical swing member 2 can swing. While limiting the spherical swing member 2, the pressure block 4 bears the water pressure in front of the spherical swing member 2 to ensure the stability of the spherical swing member 2.

[0027] Furthermore, a spherical sealing component 8 is provided between the arc-shaped step 12 and the spherical swinging member 2. In this embodiment, the spherical sealing component 8 is a sealing ring, and an annular groove is provided in the middle of the arc-shaped surface of the arc-shaped step 12. The sealing ring is arranged in the annular groove, and the sealing ring is matched with the surface of the spherical swinging member 2; and the arc-shaped surface on the arc-shaped step 12 is fitted with the surface of the spherical swinging member 2 to form an arc-shaped contact, thereby ensuring the sealing effect between the spherical swinging member 2 and the crushing cylinder 1, so that the spherical sealing component 8 can ensure the water and soil pressure in front of the cutter head.

[0028] In addition, in this embodiment, a spherical sealing component 8 is also provided between the pressing block 4 and the spherical swinging member 2 , and the spherical sealing component 8 can ensure the sealing between the spherical swinging member 2 and the pressing block 4 .

[0029] Furthermore, a through hole is provided on the spherical swinging member 2, and the head of the rock breaking component 5 is inserted into the through hole. The head of the rock breaking component 5 extends out of the front end of the crushing cylinder 1 through the through hole, so that the rock breaking component 5 can crush the isolated rocks at the front end of the cutter head.

[0030] Furthermore, a sliding seal assembly 3 is provided on the spherical swing member 2, the sliding seal assembly 3 corresponds to the position of the through hole, and the sliding seal assembly 3 is sealed with the head of the crushing device 5. In this embodiment, the sliding seal assembly 3 includes a straight cylinder connected to the spherical swing member 2, and a plurality of sealing grooves arranged side by side are provided on the inner wall of the straight cylinder, and a sealing ring is provided in the sealing groove, and the sealing ring is matched with the head of the rock breaking assembly 5. The sliding seal assembly 3 seals between the through hole and the rock breaking assembly 5 to ensure the water and soil pressure of the front panel of the cutter head.

[0031] Embodiment 3, based on Embodiment 2, is a normal pressure cutter disc crushing device, wherein a driving assembly is further provided in the crushing barrel 1, and the driving assembly is connected to the swing assembly. The driving assembly can adjust and support the swing angle of the spherical swing member 2; specifically, before the boulder is crushed, the driving assembly adjusts the swing angle of the spherical swing member 2; during the boulder crushing process, the driving assembly keeps the rock breaking assembly 5 directional stable, ensuring that the rock breaking assembly 5 can crush the boulder, avoiding slippage between the head of the rock breaking assembly 5 and the boulder, and ensuring the boulder crushing efficiency.

[0032] Furthermore, the driving assembly includes a plurality of telescopic oil cylinders 9, one end of which is movably connected to the inner wall of the crushing barrel 1, and the other end of which is movably connected to the spherical swinging member 2; the telescopic oil cylinders 9 are centrally symmetrically arranged in the crushing barrel 1. Cylinder seats 10 are provided on the inner wall of the crushing barrel 1 and the surface of the spherical swinging member 2, and both ends of the telescopic oil cylinder 9 are movably connected to the cylinder seats 10; the telescopic oil cylinder 9 is connected to the cylinder matching 11, and the cylinder matching 11 supplies oil to the telescopic oil cylinder 9 through the oil supply pipeline, thereby controlling the telescopic oil cylinder 9; the telescopic oil cylinder 9 can drive the spherical swinging member 2 to swing in the telescopic direction of the telescopic oil cylinder 9 by telescopic extension, and drive the rock breaking assembly 5 to swing through the spherical swinging member 2, thereby realizing the adjustment of the direction of the rock breaking assembly 5.

[0033] In addition, if Fig.11 As shown, in this embodiment, four telescopic cylinders 9 are arranged in the crushing barrel 1, and the four telescopic cylinders 9 are evenly arranged on the outside of the spherical swinging part 2. The four telescopic cylinders 9 work together to drive the spherical swinging part 2 to swing, so that the swing angle of the spherical swinging part 2 is accurate, and at the same time, it is ensured that the telescopic cylinders 9 can provide stable support for the spherical swinging part 2 after extension and contraction.

[0034] Furthermore, the front opening of the crushing barrel 1 is a trumpet-shaped opening. The trumpet-shaped opening faces the outside of the cutter head, and the trumpet-shaped opening can further expand the swing range of the rock breaking component head, thereby expanding the working range of the crushing device.

[0035] In this embodiment, the telescopic oil cylinder 9 is extended and retracted to push the rock breaking assembly 5 to swing and adjust the direction so that the rock breaking assembly 5 faces the boulder, and then a user operates the rock breaking assembly 5 to move forward to break the boulder.

[0036] Embodiment 4 is different from Embodiment 2 in that it is a normal pressure cutter disc crushing device, wherein the swinging assembly includes a rotating disc and a sleeve, and the rotating disc is provided with coaxially arranged rotating shafts on two planes, and the rotating shaft is rotatably connected to the sleeve through a bearing, and a through hole is provided on the side wall of the rotating disc, which passes through the center of the rotating disc, and the head of the rock breaking assembly 5 passes through the through hole; the sleeve is a circular cylinder, and the sleeve is rotatably connected to the inner wall of the crushing barrel 1, and a sealing structure is provided between the sleeve and the crushing barrel 1, and a strip hole is provided in the sleeve, and the two ends of the strip hole are arc surfaces, and the arc surfaces are sealed with the side walls of the rotating disc, and the two side surfaces of the strip hole are sealed with the two planes of the rotating disc. In this embodiment, the head of the rock breaking assembly 5 can swing in the strip opening at the front end of the strip hole, and the direction of the strip hole can be adjusted by the rotation between the sleeve and the crushing barrel 1; when the solitary rock is crushed, the direction of the rock breaking assembly 5 is adjusted by the rotation of the sleeve and the rotation of the rotating disc.

[0037] like Figures 4 to 10 As shown in the figure, the installation process of the atmospheric pressure cutter disc crushing device is as follows: 1. If Figure 4 As shown, a spherical sealing assembly 8 is installed in the crushing barrel 1; 2. If Figure 5 As shown, the spherical swing member 2 is installed in the crushing barrel 1, and the spherical surface of the spherical swing member 2 contacts the arc surface of the arc surface step 12 in the crushing barrel 1; 3. If Figure 6 As shown, the pressing block 4 and the cylinder seat 10 are installed, the pressing block 4 is connected to the crushing barrel 1 by the fixing bolts 6, and the cylinder seat 10 is arranged on the inner wall of the crushing barrel 1 by welding; 4. If Figure 7 As shown, the sliding seal assembly 3 is installed, the straight cylinder of the seal assembly 3 is connected to the spherical swing member 2 by welding, and the axis of the straight cylinder coincides with the axis of the through hole on the spherical swing member 2, and a sealing ring is installed on the inner wall of the straight cylinder; 5. If Figure 8 As shown, the rock breaking assembly 5 is inserted into the through hole of the spherical swinging member 2.

[0038] 6. If Fig. 9 , Fig.10 As shown, after the crushing device is installed on the sealing seat 7, the drive assembly is installed. Specifically, the two ends of the telescopic cylinder 9 are first connected to the cylinder seat 10, and then the oil inlet and outlet of the telescopic cylinder 9 are connected to the cylinder matching 11 respectively.

[0039] Embodiment 5, based on embodiment 3, a method for using a normal pressure cutter disc crushing device comprises: S1, determine the corresponding position of the lone stone in front of the cutter disc 13 and the cutter disc 13; find the position of the cutter barrel with a normal pressure cutter changing device that is closest to the lone stone; S2, using the normal pressure tool changing device at the corresponding position of the cutter head 13 to remove the excavation tool barrel from the sealing seat 7, and connect the crushing barrel 1 to the sealing seat 7; the replacement process of the tool barrel and the crushing barrel 1 is the same as the normal pressure tool changing process; S3, adjusting the direction of the rock breaking component 5 by the swing component so that the rock breaking component 5 faces the boulder direction; in this embodiment, the swing component passively moves to adjust the direction of the rock breaking component 5. Specifically, the user adjusts the tail of the rock breaking component 5 to swing and adjust the direction so that the rock breaking component 5 faces the boulder direction; S4, start the rock breaking assembly 5 to break the isolated rock; the user operates the rock breaking assembly 5 to move forward to break the isolated rock until the head of the rock breaking assembly 5 extends to the limit position, and then the user pulls the rock breaking assembly 5 backward; S5, repeat S3 and S4, and perform the rock crushing operation in multiple directions until the size of the rock within the working range of the crushing device meets the use requirements of the slurry discharge component; the user adjusts the direction of the rock breaking component 5 again, and pushes the rock breaking component 5 forward again to crush the rock for the second time or crush other rocks, so as to achieve rock crushing in a larger range, so that the crushed rocks can be discharged through the slurry discharge component, avoiding the problem of clogging; S6, use the normal pressure knife changing device to replace the crushing barrel 1 with the excavation knife barrel; the rock crushing is completed. After the rock crushing is completed, the knife is reinstalled on the sealing seat 7 so that the cutter head can continue to move forward; the modular crushing device will not change the existing structure of the cutter head, so that the crushing device can be applied to different cutter heads, enhancing the applicability of the device; at the same time, it is convenient to overhaul the crushing device.

[0040] Embodiment 6 is different from Embodiment 5 in that it is a method for using a normal pressure cutter disc crushing device. In S3, the spherical swinging member 2 in the swinging member is driven to rotate by the extension and contraction of each telescopic oil cylinder 9 in the driving member, and the direction of the rock breaking member 5 is adjusted by the rotation of the spherical swinging member 2. That is, when the direction of the rock breaking member 5 is adjusted, the driving member drives the swinging member to move, which specifically includes: S1, determine the corresponding position of the lone stone in front of the cutter disc 13 and the cutter disc 13; find the position of the tool with the normal pressure tool changing device that is closest to the lone stone; S2, using the normal pressure tool changing device at the corresponding position of the cutter head 13 to remove the excavation tool barrel from the sealing seat 7, and connect the crushing barrel 1 to the sealing seat 7; the replacement process of the tool barrel and the crushing barrel 1 is the same as the normal pressure tool changing process; S3, adjusting the direction of the rock breaking component 5 by swinging the component so that the rock breaking component 5 faces the direction of the boulder; Figure 3 As shown, in this embodiment, the swing component actively moves to adjust the direction of the rock breaking component 5. Specifically, the telescopic cylinder 9 pushes the spherical swing member 2 to swing, thereby driving the rock breaking component 5 to swing and adjust the direction, so that the rock breaking component 5 faces the direction of the boulder. S4, start the rock breaking component 5 to break the boulder; the user operates the rock breaking component 5 to move forward to break the boulder until the head of the rock breaking component 5 extends to the limit position, and then the user pulls the rock breaking component 5 backward; during the forward movement of the rock breaking component, the driving component provides support for the spherical swinging member 2 to limit the swinging of the spherical swinging member 2, so that the rock breaking component 5 maintains a stable direction, ensuring that the rock breaking component 5 can break the boulder and avoiding slippage between the head of the rock breaking component 5 and the boulder; S5, repeat S3 and S4 to perform rock crushing operations in multiple directions until the size of the rocks within the working range of the crushing device meets the use requirements of the slurry discharge component; the driving component adjusts the direction of the rock breaking component 5 again, and pushes the rock breaking component 5 forward again to perform secondary crushing on the rocks or crush other rocks, so as to achieve rock crushing in a larger range; S6, use the normal pressure knife changing device to replace the crushing barrel 1 with the excavation knife barrel; the rock crushing is completed. After the rock crushing is completed, the knife is reinstalled on the sealing seat 7 so that the cutter head can continue to move forward; the modular crushing device will not change the existing structure of the cutter head, so that the crushing device can be applied to different cutter heads, enhancing the applicability of the device; at the same time, it is convenient to overhaul the crushing device.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A normal pressure cutter disc crushing device, characterized in that: The invention comprises a crushing barrel (1), the crushing barrel (1) being detachably connected to a sealing seat (7) of a normal pressure blade changing device on a blade disc (13), a swing assembly being provided in the crushing barrel (1), a rock breaking assembly (5) being provided on the swing assembly, the rock breaking assembly (5) being movably arranged with the crushing barrel (1), and the head of the rock breaking assembly (5) being able to extend out of the crushing barrel (1).

2. The atmospheric pressure cutter disc crushing device according to claim 1, characterized in that: The swing assembly comprises a spherical swing member (2) and a pressing block (4); a curved step (12) is provided in the crushing barrel (1); the pressing block (4) is detachably connected to the crushing barrel (1); and the curved step (12) cooperates with the pressing block (4) to limit the position of the spherical swing member (2).

3. The atmospheric pressure cutter disc crushing device according to claim 2, characterized in that: A spherical sealing component (8) is provided between the arc-surface step (12) and the spherical swinging member (2).

4. The atmospheric pressure cutter disc crushing device according to claim 2 or 3, characterized in that: A through hole is provided on the spherical swinging member (2), and the head of the rock breaking component (5) is inserted into the through hole.

5. The atmospheric pressure cutter disc crushing device according to claim 4, characterized in that: A sliding sealing component (3) is provided on the spherical swinging member (2); the sliding sealing component (3) corresponds to the position of the through hole; the sliding sealing component (3) is in sealing cooperation with the head of the crushing device (5).

6. The normal pressure cutter disc crushing device according to any one of claims 1 to 3 and 5, characterized in that: A driving assembly is also provided in the crushing barrel (1), and the driving assembly is connected to the swing assembly.

7. The atmospheric pressure cutter disc crushing device according to claim 6, characterized in that: The driving assembly comprises a plurality of telescopic oil cylinders (9), one end of the telescopic oil cylinder (9) being movably connected to the inner wall of the crushing barrel (1), and the other end of the telescopic oil cylinder (9) being movably connected to the spherical swinging member (2); the telescopic oil cylinders (9) are centrally symmetrically arranged in the crushing barrel (1).

8. The normal pressure cutter disc crushing device according to any one of claims 1 to 3, 5 and 7, characterized in that: The front end opening of the crushing cylinder (1) is a trumpet-shaped opening.

9. A method for using the atmospheric pressure cutter disc crushing device according to any one of claims 1 to 8, characterized in that: include: S1, determining the corresponding positions of the isolated rock in front of the cutter disc (13) and the cutter disc (13); S2, using a normal pressure cutter changing device at a corresponding position of the cutter head (13) to remove the excavation cutter barrel from the sealing seat (7), and connect the crushing barrel (1) to the sealing seat (7); S3, adjusting the direction of the rock breaking assembly (5) by means of the swing assembly so that the rock breaking assembly (5) faces the direction of the boulder; S4, starting the rock breaking component (5) to break the isolated rocks; S5, repeating S3 and S4 to perform the boulder crushing operation in multiple directions until the size of the boulder within the working range of the crushing device meets the use requirements of the slurry discharge component; S6, using the normal pressure blade changing device to replace the crushing barrel (1) with a blade barrel for excavation; the rock crushing is completed.

10. The method for using the atmospheric pressure cutter disc crushing device according to claim 9, characterized in that: In S3, the spherical swing member (2) in the swing assembly is driven to rotate by the extension and retraction of each telescopic oil cylinder (9) in the driving assembly, and the direction of the rock breaking assembly (5) is adjusted by the rotation of the spherical swing member (2).

Images