A breaking device and a caisson type shaft tunneling machine comprising the same

Abstract

The application provides a crushing device and a sinking shaft shaft tunneling machine comprising the same, and belongs to the technical field of tunnel construction; the crushing device is used for crushing boulders in the tunneling process; the crushing device comprises a movable arm, a bucket rod, a driving assembly and a crushing bucket; one end of the movable arm is hingedly connected to one end of the bucket rod, and the other end of the bucket rod is hingedly connected to the crushing bucket; the driving assembly is used for driving the crushing bucket to swing, one end of the driving assembly is hingedly connected to the bucket rod, and the other end of the adjusting assembly is hingedly connected to the crushing bucket; the crushing bucket is used for crushing the rock debris discharged by the shaft tunneling machine, and the crushing bucket is provided in a jaw plate type structure, a roller type structure or a clamp type structure. The application is used in cooperation with the sinking shaft shaft tunneling machine, realizes the crushing and discharge of boulders to the ground, does not affect the flowability of the rock debris in the rock discharge cavity, and through the diversified structure of the crushing bucket, the crushing bucket can be flexibly selected according to the gravel particle size distribution in the stratum.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tunnel construction, and relates to a crushing device and a sinking well type shaft tunneling machine comprising the same. BACKGROUND

[0002] Shaft, as a channel connecting the ground surface and the underground, occupies an increasingly important position in the development of urban underground space. However, the current shaft construction mainly adopts the traditional enclosure structure + open excavation method, which has the disadvantages of low construction efficiency, high investment cost, labor-intensive, poor safety, etc. At present, more and more shafts within 100 meters in cities are constructed by using the sinking well tunneling machine method. This method does not need to construct an enclosure structure in advance and does not need to pump out the underground water inside and outside the shaft, and is the most advanced shaft construction method at present.

[0003] At present, the shaft tunneling machine mainly uses the following methods for slag discharge: slurry discharge, vacuum discharge, air-lift reverse circulation discharge, etc. The above slag discharge methods all have corresponding slag discharge pipelines. Due to the limitation of the pipeline diameter and the discharge capacity of the pump, large particles of pebbles or boulders in the shaft excavation range cannot be discharged through the pipeline. In reality, the auxiliary slag discharge by lowering the grab bucket is used. Since the sinking well type shaft adopts the non-drainage construction technology in the shaft, the grab bucket cannot effectively identify the position of the boulders, and can only perform inefficient blind grabbing operation, which has poor application effect. With the increase of the excavation depth, the pebbles and boulders are accumulated more and more, and are long-term accumulated and discharged at the bottom of the shaft, which increases the movement resistance of the equipment and intensifies the vibration, and at the same time, causes secondary damage to the cutter head and increases the equipment failure rate.

[0004] Therefore, how to crush the boulders or large-diameter pebbles under the shaft and adapt to the discharge particle size of the pump is still a problem to be solved by the technical personnel in the field at present. SUMMARY

[0005] The present application provides a crushing device, which is installed in a sinking well type shaft tunneling machine and used for crushing boulders in the tunneling process. The crushing device comprises a movable arm, a bucket rod, a driving assembly and a crushing bucket.

[0006] One end of the movable arm is hingedly connected to one end of the bucket rod, and the other end of the bucket rod is hingedly connected to the crushing bucket.

[0007] The driving assembly is used for driving the crushing bucket to swing, one end of the driving assembly is hingedly connected to the bucket rod, and the other end of the adjusting assembly is hingedly connected to the crushing bucket.

[0008] The crushing bucket is used for crushing the slag stones discharged by the shaft tunneling machine, and the crushing bucket is provided in a jaw plate type structure, a roller type structure or a clamp type structure.

[0009] Optionally, the crushing bucket comprises a movable jaw, a fixed jaw, a crushing bucket main body, a crushing bucket inlet and a crushing bucket outlet.

[0010] The crushing bucket body is arranged in a bucket type structure and is hingedly connected with the bucket arm and the driving assembly.

[0011] The movable jaw is rotatably connected with the crushing bucket body, the fixed jaw is rotatably connected with the crushing bucket body, and the rotation directions of the movable jaw and the fixed jaw are the same as the distribution directions of the crushing bucket inlet and the crushing bucket outlet.

[0012] Optionally, the first rotating bearing is arranged between the movable jaw and the crushing bucket body, and the two ends of the movable jaw extend to the outside of the crushing bucket body.

[0013] The second rotating bearing is arranged between the fixed jaw and the crushing bucket body.

[0014] The movable jaw and the fixed jaw are arranged at intervals, and the interval between the movable jaw and the fixed jaw is adjustable.

[0015] Optionally, a plurality of tooth-shaped structures are arranged on the outer surfaces of the movable jaw and the fixed jaw.

[0016] Optionally, the crushing bucket comprises a roller, a roller cylinder, a crushing bucket body, a crushing bucket inlet and a crushing bucket outlet.

[0017] The crushing bucket body is arranged in a bucket type structure and is hingedly connected with the bucket arm and the driving assembly.

[0018] The roller is rotatably connected with the crushing bucket body, the roller cylinder is rotatably connected with the crushing bucket body, and the rotation directions of the roller and the roller cylinder are the same as the distribution directions of the crushing bucket inlet and the crushing bucket outlet.

[0019] Optionally, the first rotating bearing is arranged between the movable jaw and the crushing bucket body, and the two ends of the movable jaw extend to the outside of the crushing bucket body.

[0020] Optionally, a plurality of tooth-shaped structures are arranged on the outer surfaces of the movable jaw and the fixed jaw.

[0021] Optionally, the crushing bucket comprises a crushing bucket body, a fixed clamp, a movable clamp and a clamp oil cylinder.

[0022] The fixed clamp is fixedly connected to the main body of the crushing bucket, and the movable clamp is hinged to the main body of the crushing bucket.

[0023] One end of the clamping cylinder is hinged to the main body of the crushing bucket, and the other end of the clamping cylinder is hinged to the movable clamp, which is used to drive the movable clamp to open and close relative to the fixed clamp.

[0024] Optionally, several toothed structures are provided on the end faces of the movable clamp and the fixed clamp used for crushing stone.

[0025] The present invention also provides a caisson-type vertical shaft tunneling machine, including a rotary table, a central rotary drive for driving the rotary table to rotate, a cutting device hinged to the rotary table, a swing cylinder for driving the cutting device to swing and excavate, and a crushing device as described above.

[0026] The boom in the crushing device is hinged to the rotary table, and the crushing device is driven to swing relative to the rotary table by the boom drive component.

[0027] The cutting device includes a cutting arm body, a roller base and a cutting roller disposed on the cutting arm body. The roller base is fixedly connected to one end of the cutting arm body, and the cutting roller is rotatably mounted on the roller base. The cutting roller performs excavation by rotating around its own axis and swinging actively driven by the cutting arm.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The crushing device provided by the present invention, when used in conjunction with a caisson-type vertical shaft tunneling machine, can crush and discharge isolated boulders to the ground without affecting the flowability of rock debris in the slag discharge chamber; and by setting the structure of the crushing bucket into a diversified structure, it can be flexibly selected according to the particle size distribution of pebbles in the stratum.

[0030] (2) The caisson-type shaft excavator provided by the present invention can simultaneously cut and excavate as well as crush boulders by setting a cutting device and a crushing device, without reducing the shaft excavation efficiency.

[0031] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0032] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0033] Figure 1 is a working state one schematic diagram of a sinking well type shaft tunneling machine in the embodiment of the present application;

[0034] Figure 2 is a working state two schematic diagram of a sinking well type shaft tunneling machine in the embodiment of the present application;

[0035] Figure 3 is Figure 1 structure schematic diagram of the crushing device and the rotary table after being connected with each other in the embodiment;

[0036] Figure 4 is Figure 3 side view schematic diagram of the crushing bucket in the embodiment;

[0037] Figure 5 is Figure 3 front view schematic diagram of the first structure of the crushing bucket in the embodiment;

[0038] Figure 6 is Figure 3 front view schematic diagram of the second structure of the crushing bucket in the embodiment;

[0039] Figure 7 is Figure 3 front view schematic diagram of the third structure of the crushing bucket in the embodiment;

[0040] Figure 8 is Figure 1 partial schematic diagram of the cutting device in the embodiment;

[0041] Figure 9 is Figure 8 partial enlarged schematic diagram of the grating hole in the embodiment.

[0042] wherein:

[0043] 1, the crushing device, 1-1, the first arm oil cylinder, 1-2, the second arm oil cylinder, 1-3, the arm, 1-4, the bucket rod oil cylinder, 1-5, the bucket rod, 1-6, the adjusting oil cylinder, 1-7, the first connecting rod, 1-8, the second connecting rod, 1-9, the crushing bucket, 1-9-1, the movable jaw, 1-9-2, the fixed jaw, 1-9-3, the roller, 1-9-4, the roller, 1-9-5, the crushing bucket structure, 1-9-6, the crushing bucket inlet, 1-9-7, the crushing bucket outlet, 1-9-8, the fixed clamp, 1-9-9, the movable clamp, 1-9-10, the clamp oil cylinder;

[0044] 2, the cutting device, 2-1, the slurry pump, 2-2, the pump suction, 2-3, the first conical plate, 2-4, the filter grating plate, 2-4-1, the grating hole, 2-5, the second conical plate, 2-6, the slurry discharge pipe, 2-7, the flushing port, 2-8, the slag discharge cavity, 2-9, the roller base, 2-10, the cutting roller;

[0045] 3, center rotary drive, 3-1, rotary drive internal slurry discharge pipe, 3-2, slurry rotary joint;

[0046] 4, rotary table, 4-1, boom cylinder mounting seat, 4-2, boom mounting seat;

[0047] 5, swing cylinder. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned purposes, features and advantages of the present application more clear and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. It should be noted that the drawings of the present application are all simplified and use non-accurate proportions, and are only used to facilitate and clearly assist in explaining the implementation of the present application; the number of several mentioned in the present application is not limited to the specific number in the example of the drawings; the directions or position relationships mentioned in the present application, such as 'front','middle','rear', 'left', 'right', 'top', 'bottom', 'top', 'bottom','middle', are all based on the directions or position relationships shown in the drawings of the present application, and do not indicate or imply that the devices or parts referred to must have a specific direction, nor can it be understood as a limitation on the present application.

[0049] EMBODIMENT:

[0050] Referring to Figure 1 and Figure 2 , the present application provides a sinking well type shaft tunneling machine, which comprises a crushing device 1 and a cutting device 2 installed on a rotary table 4 of a sinking well tunneling machine, a center rotary drive 3 for driving the rotary table 4 to rotate 360°, and a swing cylinder 5 for driving the cutting device 2 to swing and excavate;

[0051] The center rotary drive 3 comprises a center rotary drive main body, a rotary drive internal slurry discharge pipe 3-1 and a slurry rotary joint 3-2 arranged on the center rotary drive main body; the rotary drive internal slurry discharge pipe 3-1 is in communication with the slurry discharge pipe 2-6 in the cutting device 2 through the slurry rotary joint 3-2, and is used for discharging slurry.

[0052] The rotary table 4 is used to provide a mounting base for the crushing arm; and the rotary table 4 comprises a rotary table main body, a boom cylinder mounting seat 4-1 and a boom mounting seat 4-2 arranged on the rotary table main body;

[0053] One end of the swing cylinder 5 is hingedly connected with the rotary table main body, and the other end of the swing cylinder 5 is hingedly connected with the cutting arm main body in the cutting device 2, and is used to drive the cutting arm main body to swing.

[0054] Preferably, the crushing device 1 can be provided with a plurality of crushing devices according to requirements.

[0055] Referring to Figure 3As shown, the crushing device 1 comprises a first boom cylinder 1-1, a second boom cylinder 1-2, a boom 1-3, a stick cylinder 1-4, a stick 1-5, an adjusting cylinder 1-6, a first connecting rod 1-7, a second connecting rod 1-8 and a crushing bucket 1-9;

[0056] One end of the first boom cylinder 1-1 is hingedly connected with a boom cylinder mounting seat 4-1 in the rotating platform 4, and the other end of the first boom cylinder 1-1 is hingedly connected with a middle part of the boom 1-3;

[0057] The second boom cylinder 1-2 is arranged in parallel with the first boom cylinder 1-1, one end of the second boom cylinder 1-2 is hingedly connected with the boom cylinder mounting seat 4-1 in the rotating platform 4, and the other end of the second boom cylinder 1-2 is hingedly connected with the middle part of the boom 1-3;

[0058] One end of the boom 1-3 is hingedly connected with the boom mounting seat 4-2, and the other end of the boom 1-3 is hingedly connected with one end of the stick 1-5;

[0059] One end of the stick cylinder 1-4 is hingedly connected with the boom 1-3, and the other end of the stick cylinder 1-4 is hingedly connected with one end of the stick 1-5;

[0060] The other end of the stick 1-5 is hingedly connected with the crushing bucket 1-9;

[0061] One end of the adjusting cylinder 1-6 is hingedly connected with the stick 1-5, the other end of the adjusting cylinder 1-6 is hingedly connected with one end of the first connecting rod 1-7, and a middle part of the first connecting rod 1-7 is hingedly connected with one end of the stick 1-5 close to the crushing bucket 1-9;

[0062] The first connecting rod 1-7 is further hingedly connected with the second connecting rod 1-8 at the end hingedly connected with the adjusting cylinder 1-6, and the other end of the second connecting rod 1-8 is hingedly connected with the crushing bucket 1-9.

[0063] Preferably, the boom 1-3 is arranged in a box type structure by welding. Specifically, the boom 1-3 comprises a first side plate, a second side plate, a first horizontal plate and a second horizontal plate, the first side plate and the second side plate are arranged in parallel, the first horizontal plate is fixedly connected with one end surface of the first side plate and the second side plate, and the second horizontal plate is fixedly connected with the other end of the first side plate and the second side plate to form a box type structure; the first boom cylinder 1-1 is hingedly connected with the first side plate, the second boom cylinder 1-2 is hingedly connected with the second side plate, the boom mounting seat 4-2 is hingedly connected with one end of the first side plate and the second side plate close to the first horizontal plate, and the stick cylinder 1-4 is hingedly connected with the first horizontal plate.

[0064] Preferably, the arm 1-5 is provided as a welded box structure. Specifically, the arm 1-5 comprises a third side plate, a fourth side plate, a third horizontal plate and a fourth horizontal plate, the third and fourth side plates are arranged in parallel to each other, the third horizontal plate is fixedly connected to one end of the third and fourth side plates, and the fourth horizontal plate is fixedly connected to the other end of the third and fourth side plates; a connecting block is further arranged on the lower end surface of the third and fourth side plates, the first and second side plates are hingedly connected to the connecting block, the adjusting oil cylinder 1-6 is hingedly connected to the connecting block, and the arm oil cylinder 1-4 is hingedly connected to the third horizontal plate.

[0065] Preferably, a stroke sensor is arranged on each of the first boom oil cylinder 1-1, the second boom oil cylinder 1-2, the arm oil cylinder 1-4 and the adjusting oil cylinder 1-6, so that the extension length thereof is accurately adjustable, and the posture of the crushing arm can be accurately controlled.

[0066] Preferably, the crushing mode of the crushing bucket 1-9 is at least one of a jaw plate type, a roller type or a clamp type.

[0067] As a further embodiment of the present application, as shown in Figure 4 and Figure 5 when the crushing mode of the crushing bucket 1-9 is a jaw plate type, the main structure of the crushing bucket 1-9 is provided as a bucket type structure, and the crushing bucket 1-9 specifically comprises a movable jaw 1-9-1, a fixed jaw 1-9-2, a crushing bucket main body 1-9-5, a crushing bucket inlet 1-9-6 and a crushing bucket outlet 1-9-7; the crushing bucket main body 1-9-5 is hingedly connected to the arm 1-5 and the second connecting rod 1-8, and the crushing bucket inlet 1-9-6 and the crushing bucket outlet 1-9-7 are respectively arranged on the two end surfaces of the crushing bucket main body 1-9-5 which are perpendicular to the displacement direction of the adjusting oil cylinder 1-6; the movable jaw 1-9-1 is rotatably connected to the crushing bucket main body 1-9-5, the fixed jaw 1-9-2 is rotatably connected to the crushing bucket main body 1-9-5, and the movable jaw 1-9-1 and the fixed jaw 1-9-2 are arranged in parallel and have the same rotation direction as the displacement direction of the adjusting oil cylinder 1-6. That is, the rotation direction of the movable jaw 1-9-1 and the fixed jaw 1-9-2 is the same as the distribution direction of the crushing bucket inlet 1-9-6 and the crushing bucket outlet 1-9-7, the rock enters the crushing bucket main body 1-9-5 from the crushing bucket inlet 1-9-6, is relatively crushed by the relative rotation between the movable jaw 1-9-1 and the fixed jaw 1-9-2, and is then discharged through the crushing bucket outlet 1-9-7.

[0068] Preferably, a first rotating bearing is arranged between the moving jaw 1-9-1 and the crushing bucket body 1-9-5, a second rotating bearing is arranged between the fixed jaw 1-9-2 and the crushing bucket body 1-9-5, and the two ends of the moving jaw 1-9-1 extend to the outside of the crushing bucket body 1-9-5. In order to drive the moving jaw 1-9-1, a first driving member is arranged on the extending end of the moving jaw 1-9-1, and the first driving member is preferably an electric motor.

[0069] Further preferably, in order to effectively crush the rock, a plurality of tooth-shaped structures are arranged on the outer surfaces of the moving jaw 1-9-1 and the fixed jaw 1-9-2.

[0070] Still further preferably, the spacing between the moving jaw 1-9-1 and the fixed jaw 1-9-2 is adjustable, and the spacing between the plurality of tooth-shaped structures arranged on the outer surfaces of the moving jaw 1-9-1 and the fixed jaw 1-9-2 is also adjustable, so that the particle size of the crushed rock is ensured by the spacing between the moving jaw 1-9-1 and the fixed jaw 1-9-2. Specifically, the spacing between the moving jaw 1-9-1 and the fixed jaw 1-9-2 can be matched with the passing capacity of the slurry discharge system.

[0071] As further embodiments of the present application, referring to Figs. 1-9 and 1-10, Figure 4 and Figure 6 when the crushing mode of the crushing bucket 1-9 is set to the roller crushing mode, the main structure of the crushing bucket 1-9 is set to a bucket structure, and the crushing bucket 1-9 comprises a roller 1-9-3, a roller 1-9-4, a crushing bucket body 1-9-5, a crushing bucket inlet 1-9-6 and a crushing bucket outlet 1-9-7; the crushing bucket body 1-9-5 is hingedly connected with the bucket rod 1-5 and the second connecting rod 1-8, and the crushing bucket inlet 1-9-6 and the crushing bucket outlet 1-9-7 are arranged on the two end faces of the crushing bucket body 1-9-5 which are perpendicular to the displacement direction of the adjusting oil cylinder 1-6; the roller 1-9-3 is rotatably connected with the crushing bucket body 1-9-5, the roller 1-9-4 is rotatably connected with the crushing bucket body 1-9-5, and the roller 1-9-3 and the roller 1-9-4 are arranged in a spaced-apart manner and the rotation directions of the roller 1-9-3 and the roller 1-9-4 are the same as the displacement direction of the adjusting oil cylinder 1-6. That is, the rotation directions of the roller 1-9-3 and the roller 1-9-4 are the same as the distribution directions of the crushing bucket inlet 1-9-6 and the crushing bucket outlet 1-9-7, the rock enters the crushing bucket body 1-9-5 from the crushing bucket inlet 1-9-6, is relatively crushed by the relative rotation between the roller 1-9-3 and the roller 1-9-4, and is then discharged through the crushing bucket outlet 1-9-7.

[0072] Preferably, a first rotating bearing is arranged between the roller 1-9-3 and the crushing bucket body 1-9-5, a second rotating bearing is arranged between the roller 1-9-4 and the crushing bucket body 1-9-5, and one end of the roller 1-9-3 extends to the outside of the crushing bucket body 1-9-5, and one end of the roller 1-9-4 extends to the outside of the crushing bucket body 1-9-5; in order to drive the roller 1-9-3 and the roller 1-9-4 respectively, a second driving element is arranged on the extending end of the roller 1-9-3 and the roller 1-9-4, and the second driving element is preferably an electric motor.

[0073] Further preferably, in order to effectively crush the rock, a plurality of tooth-shaped structures are arranged on the outer surfaces of the roller 1-9-3 and the roller 1-9-4.

[0074] Further preferably, the distance between the roller 1-9-3 and the roller 1-9-4 is adjustable, and the distance between the plurality of tooth-shaped structures arranged on the outer surfaces of the roller 1-9-3 and the roller 1-9-4 is also adjustable, so that the particle size of the crushed rock is ensured by the distance between the roller 1-9-3 and the roller 1-9-4. Specifically, the distance between the roller 1-9-3 and the roller 1-9-4 can be matched according to the passing capacity of the slurry discharge system.

[0075] As a further embodiment of the present application, referring to Figure 7 When the crushing mode of the crushing bucket 1-9 is set to the jaw crushing mode, the crushing bucket 1-9 comprises a crushing bucket body 1-9-5, a fixed jaw 1-9-8, a movable jaw 1-9-9, and a jaw cylinder 1-9-10, the fixed jaw 1-9-8 is fixedly connected with the crushing bucket body 1-9-5, the movable jaw 1-9-9 is hingedly connected with the crushing bucket body 1-9-5, one end of the jaw cylinder 1-9-10 is hingedly connected with the crushing bucket body 1-9-5, and the other end of the jaw cylinder 1-9-10 is hingedly connected with the movable jaw 1-9-9, for driving the movable jaw 1-9-9 to open and close relative to the fixed jaw 1-9-8.

[0076] Preferably, in order to improve the crushing capacity, the jaw cylinder 1-9-10 can be arranged in a plurality of parallel arrangements.

[0077] Preferably, a plurality of tooth-shaped structures are arranged on the end surface of the movable jaw and the fixed jaw for crushing.

[0078] More preferably, when the crushing mode of the crushing buckets 1-9 is set to the clamp crushing mode, it can sequentially carry out crushing operations at crushing positions ①-1, ①-2, ①-3, ..., ①-N along the excavation trajectory. The opening and closing direction of the clamp crushing device is perpendicular to the plane of the excavation trajectory. When the clamp crushing device moves at different crushing positions, it is in an open state to avoid pushing away the rock debris.

[0079] See Figure 8 and Figure 9 As shown, the cutting device 2 includes a cutting arm body and a roller base 2-9 and a cutting roller 2-10 disposed on the cutting arm body. The roller base 2-9 is fixedly connected to one end of the cutting arm body. The cutting roller 2-10 is rotatably mounted on the roller base 2-9. The cutting roller 2-10 achieves excavation of the stratum by rotating around its own axis and swinging actively driven by the cutting arm.

[0080] Preferably, a slag discharge chamber 2-8 is formed inside the main body of the cutting arm. One end of the slag discharge chamber 2-8 is connected to the slurry pump 2-1 through the pump suction port 2-2. A slurry discharge pipe 2-6 is also connected to the slurry pump 2-1. The slag generated by the cutting drum 2-10 during the excavation of the stratum is sucked in by the suction of the slurry pump 2-1 and discharged to the ground.

[0081] Preferably, a first cone plate 2-3, a filter grid plate 2-4, and a second cone plate 2-5 are also provided in the slag discharge chamber 2-8; the filter grid plate 2-4 is located on the side of the cutting arm body near the cutting drum 2-10, and the filter grid plate 2-4 is provided with a plurality of grid holes 2-4-1, so that the slag generated by the cutting drum 2-10 during the excavation process is filtered by the filter grid plate 2-4 and then transported to the slag discharge chamber 2-8; one end of the first cone plate 2-4 is fixedly connected to the end of the filter grid plate 2-4 away from the cutting arm body, and the first cone plate 2-5... The other end of the first cone plate 2-4 extends towards the pump suction port 2-2 and is fixedly connected to the inner wall of the slag discharge chamber 2-8; one end of the second cone plate 2-5 is fixedly connected to the end of the filter grid plate 2-4 near the main body of the cutting arm, and the other end of the second cone plate 2-5 extends towards the pump suction port 2-2 and is fixedly connected to the inner wall of the slag discharge chamber 2-8; the first cone plate 2-4, the second cone plate 2-5 and the filter grid plate 2-4 are connected to each other to form a cone-shaped structure that is larger at the end near the cutting drum 2-10 and smaller at the end near the pump suction port 2-2, so as to facilitate the collection of slag towards the pump suction port.

[0082] More preferably, the filter grid plate 2-4 is configured as an inner arc-shaped structure to match the outer arc surface of the cutting drum 2-10 and to have a clearance fit with the outer arc surface of the cutting drum 2-10, so that the slag can be smoothly transported into the slag discharge chamber 2-8.

[0083] Further preferably, the grid holes are preferably provided in a tapered structure, so that they have a large inlet and a small outlet, thereby preventing the pebbles from being stuck in the grid holes when entering the slag discharge chamber, causing the grid to be blocked.

[0084] Further preferably, in order to prevent the larger particle size pebbles or rock slag from settling in the slag discharge chamber 2-7, a flushing port 2-7 is further provided on the second tapered plate 2-5, and by injecting a large amount of flushing liquid, the mixing of rock slag and slurry in the discharge chamber is stirred to prevent it from settling. Further preferably, the flushing liquid can use the back slurry separated from the ground, and the flow rate can be adjusted to prevent the solid content in the slag slurry from being reduced due to too much flushing liquid introduced, thereby reducing the slag carrying rate.

[0085] The present application is an independent working device, which is complementary to the caisson type shaft tunneling machine, and provides an effective boulder and rock slag discharge processing scheme for users, and the main working process is as follows:

[0086] Step 1, the broken arm shovels slag;

[0087] The mechanical arm adjusts the posture of the broken bucket, enters the slag shoveling position, and shovels the boulder and rock slag mixture at the bottom of the shaft into the broken bucket.

[0088] Step 2, the broken arm is lifted up;

[0089] The mechanical arm lifts the broken bucket to a certain height, enters the broken position, and avoids the outlet of the broken bucket being blocked by the rock slag.

[0090] Step 3, breaking;

[0091] The broken mechanism breaks the boulder mixture in the bucket and discharges it to the bottom of the shaft.

[0092] Step 4, the rotating table rotates;

[0093] The rotating table rotates by a certain angle, and the broken arm enters the position from the initial position;

[0094] Repeat steps 1-3 above to complete the rock slag breaking at position 2.

[0095] Step 5, cycle breaking;

[0096] The rotating table rotates by a certain angle again, and the broken arm enters position 3 from position 2;

[0097] Repeat steps 1-4 above to complete the rock slag breaking in the entire shaft section.

[0098] Step 6, downward tunneling;

[0099] As the shaft tunneling machine continuously tunnels downward, the broken arm follows the tunneling machine to complete the boulder breaking operation in the full depth range.

[0100] The above descriptions are only the preferred embodiments of the present application, not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall fall within the scope of the present application.

Claims

1. A crushing device, installed in a caisson-type vertical shaft tunneling machine, for crushing isolated boulders during the tunneling process; characterized in that, The crushing device (1) includes a boom (1-3), a stick (1-5), a drive assembly, and a crushing bucket (1-9). One end of the boom (1-3) is hinged to one end of the stick (1-5), and the other end of the stick (1-5) is hinged to the crushing bucket (1-9). The drive assembly is used to drive the crushing bucket (1-9) to swing, and one end of the drive assembly is hinged to the bucket rod (1-5), and the other end of the drive assembly is hinged to the crushing bucket (1-9). The crushing bucket (1-9) is used to crush the slag and rock excavated by the shaft tunneling machine, and the crushing bucket (1-9) is configured as a jaw plate structure, roller structure or clamp structure. When the crushing bucket is a jaw plate structure, the crushing bucket (1-9) includes a movable jaw (1-9-1), a fixed jaw (1-9-2), a crushing bucket body (1-9-5), a crushing bucket inlet (1-9-6), and a crushing bucket outlet (1-9-7); the crushing bucket body (1-9-5) is configured as a bucket-type structure, and the crushing bucket body is hinged to the stick (1-5) and the drive assembly. The crushing bucket (1-9) is also provided with a crushing bucket inlet (1-9-6) and a crushing bucket outlet (1-9-7); several tooth-shaped structures are also provided on the outer surfaces of the movable jaw (1-9-1) and the fixed jaw (1-9-2); When the crushing bucket is a roller structure, the crushing bucket (1-9) includes a roller (1-9-3), a drum (1-9-4), a crushing bucket body (1-9-5), a crushing bucket inlet (1-9-6), and a crushing bucket outlet (1-9-7); the crushing bucket body (1-9-5) is configured as a shovel-type structure, and the crushing bucket body (1-9-5) is simultaneously hinged to the stick (1-5) and the drive assembly; several toothed structures are also provided on the outer surfaces of the roller (1-9-3) and the drum (1-9-4); When the crushing bucket is a clamp-type structure, the crushing bucket (1-9) includes a crushing bucket body (1-9-5), a fixed clamp (1-9-8), a movable clamp (1-9-9), and a clamping cylinder (1-9-10); the fixed clamp (1-9-8) is fixedly connected to the crushing bucket body (1-9-5), and the movable clamp (1-9-9) is hinged to the crushing bucket body (1-9-5); several toothed structures are also provided on the end faces of the movable clamp and the fixed clamp used for crushing stone.

2. The crushing device according to claim 1, characterized in that, The movable jaw (1-9-1) is rotatably connected to the crushing bucket body (1-9-5), and the fixed jaw (1-9-2) is rotatably connected to the crushing bucket body (1-9-5). The rotation directions of the movable jaw (1-9-1) and the fixed jaw (1-9-2) are the same as the distribution directions of the crushing bucket inlet (1-9-6) and the crushing bucket outlet (1-9-7). The rock enters the crushing bucket body (1-9-5) from the crushing bucket inlet (1-9-6), and is then crushed by relative compression through the relative rotation between the movable jaw (1-9-1) and the fixed jaw (1-9-2), and is then discharged through the crushing bucket outlet (1-9-7).

3. The crushing device according to claim 2, characterized in that, A first rotating bearing is provided between the moving jaw (1-9-1) and the crushing bucket body (1-9-5), and both ends of the moving jaw (1-9-1) extend outward from the crushing bucket body (1-9-5), and a first driving member is also provided on the extended end of the moving jaw (1-9-1); A second rotary bearing is provided between the fixed jaw (1-9-2) and the crushing bucket body (1-9-5); The movable jaw (1-9-1) and the fixed jaw (1-9-2) are spaced apart from each other, and the distance between the movable jaw (1-9-1) and the fixed jaw (1-9-2) is adjustable.

4. The crushing device according to claim 1, characterized in that, The roller (1-9-3) is rotatably connected to the crushing bucket body (1-9-5), and the drum (1-9-4) is rotatably connected to the crushing bucket body (1-9-5). The rotation directions of the roller (1-9-3) and the drum (1-9-4) are the same as the distribution directions of the crushing bucket inlet (1-9-6) and the crushing bucket outlet (1-9-7). The rock enters the crushing bucket body (1-9-5) from the crushing bucket inlet (1-9-6), and is then crushed by relative compression through the relative rotation between the roller (1-9-3) and the drum (1-9-4), and is then discharged through the crushing bucket outlet (1-9-7).

5. The crushing device according to claim 4, characterized in that, A first rotating bearing is provided between the roller (1-9-3) and the crushing bucket body (1-9-5), and one end of the roller (1-9-3) extends outward from the crushing bucket body (1-9-5); a second rotating bearing is provided between the drum (1-9-4) and the crushing bucket body (1-9-5), and one end of the drum (1-9-4) extends outward from the crushing bucket body (1-9-5); a second driving member is also provided on the extended ends of both the roller (1-9-3) and the drum (1-9-4).

6. The crushing device according to claim 1, characterized in that, One end of the clamping cylinder (1-9-10) is hinged to the crushing bucket body (1-9-5), and the other end of the clamping cylinder (1-9-10) is hinged to the movable clamp (1-9-9), which is used to drive the movable clamp (1-9-9) to open and close relative to the fixed clamp (1-9-8).

7. A caisson-type vertical shaft tunneling machine, characterized in that, It includes a rotary table (4), a central rotary drive (3) for driving the rotary table (4) to rotate, a cutting device (2) hinged to the rotary table (4), a swing cylinder (5) for driving the cutting device (2) to swing excavate, and a crushing device (1) as described in any one of claims 1-6. The boom (1-3) in the crushing device (1) is hinged to the rotary table (4), and the crushing device (1) is driven to swing relative to the rotary table (4) by the boom drive component; The cutting device (2) includes a cutting arm body and a roller base (2-9) and a cutting roller (2-10) disposed on the cutting arm body. The roller base (2-9) is fixedly connected to one end of the cutting arm body. The cutting roller (2-10) is rotatably mounted on the roller base (2-9). The cutting roller (2-10) excavates by rotating around its own axis and swinging actively driven by the cutting arm.

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