Crushing device and open caisson type vertical shaft heading machine comprising same

Abstract

The invention provides a crushing device and an open caisson type vertical shaft heading machine comprising the same, and belongs to the technical field of tunnel construction. The crusher 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 hinged to one end of the bucket rod, and the other end of the bucket rod is hinged to the crushing bucket. The driving assembly is used for driving the crushing bucket to swing, one end of the driving assembly is hinged to the bucket rod, and the other end of the adjusting assembly is hinged to the crushing bucket; the crushing hopper is used for crushing slag stones tunneled by the vertical shaft heading machine, and the crushing hopper is arranged to be of a jaw plate type structure or a roller type structure or a clamp type structure. The open caisson type vertical shaft heading machine is used in cooperation with the open caisson type vertical shaft heading machine, boulders are crushed and discharged to the ground, and the fluidity of rock slag in the slag discharging cavity is not affected; and the structure of the crushing hopper is set to be a diversified structure, so that the crushing hopper can be flexibly selected according to gradation of gravels in the stratum.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, and relates to a crushing device and a caisson type shaft boring machine comprising the crushing device. Background Art

[0002] As a passage connecting the surface and the underground, vertical shafts occupy an increasingly important position in the development of urban underground space. However, the current construction of vertical shafts is mainly based on traditional retaining structures + open excavation, which has shortcomings such as low construction efficiency, high investment costs, intensive labor, and poor safety. At present, more and more vertical shafts within 100 meters in cities are constructed using the caisson tunneling machine method. This method uses equipment to dive underwater to excavate and extract soil. There is no need to construct retaining structures in advance, and there is no need to pump out groundwater inside and outside the well. It is currently the most advanced well construction method.

[0003] At present, there are mainly three ways of slag discharge for shaft boring machines, namely mud and water slag discharge, vacuum slag discharge, and air lift reverse circulation slag discharge. All of the above slag discharge methods have corresponding slag discharge pipelines. Limited by the pipeline diameter and the slag discharge capacity of the pump, large-grained pebbles or boulders within the excavation range of the shaft cannot be discharged through the pipeline. The actual practice is to lower the grab bucket to assist in slag discharge. Since the caisson-type shaft adopts an in-well undrained construction process, the grab bucket cannot effectively identify the position of the boulders and can only perform inefficient blind grabbing operations, with poor application effects. As the excavation depth increases, pebbles and boulders accumulate more and more and stay at the bottom of the shaft for a long time, which will increase the movement resistance of the equipment and intensify the vibration. At the same time, it will cause secondary damage to the cutter head and increase the equipment failure rate.

[0004] Therefore, how to crush isolated rocks or large-sized pebbles underground and adapt the discharge particle size of the pump is still a problem that needs to be solved urgently by technical personnel in this field. Summary of the invention

[0005] The present invention provides a crushing device, which is installed in a caisson-type shaft boring machine and is used to crush boulders during the boring process; the crushing device comprises a boom, a bucket arm, a driving assembly and a crushing bucket;

[0006] One end of the boom is hinged to one end of the bucket arm, and the other end of the bucket arm is hinged to the crushing bucket;

[0007] The driving assembly is used to drive the crushing bucket to swing, and one end of the driving assembly is hinged to the bucket arm, and the other end of the adjusting assembly is hinged to the crushing bucket;

[0008] The crushing bucket is used to crush the slag and rocks excavated by the shaft boring machine, and the crushing bucket is configured as a jaw plate structure, a roller structure or a clamp structure.

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

[0010] The crushing bucket body is configured as a bucket-type structure, and the crushing bucket body is simultaneously hinged with the bucket arm and the driving assembly, and a crushing bucket inlet and a crushing bucket outlet are also provided on the crushing bucket;

[0011] The movable jaw is rotatably connected to the crushing bucket body, and the fixed jaw is rotatably connected to the crushing bucket body. The rotation directions of the movable jaw and the fixed jaw are the same as the distribution directions from the crushing bucket inlet and the crushing bucket outlet. Rocks enter the crushing bucket body from the crushing bucket inlet, and are then relatively extruded and crushed through relative rotation between the movable jaw and the fixed jaw, and are then discharged through the crushing bucket outlet.

[0012] Optionally, a first rotary bearing is provided between the movable jaw and the crushing bucket body, and both ends of the movable jaw are respectively extended to the outside of the crushing bucket body, and a first driving member is also provided on the extended end of the movable jaw;

[0013] A second rotating bearing is provided between the fixed jaw and the crushing bucket body;

[0014] The movable jaw and the fixed jaw are spaced apart from each other, and the distance between the movable jaw and the fixed jaw is adjustable.

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

[0016] Optionally, the crushing bucket includes a roller, a drum, a crushing bucket body, a crushing bucket inlet and a crushing bucket outlet;

[0017] The crushing bucket body is configured as a bucket-type structure, and the crushing bucket body is simultaneously hinged to the bucket arm and the driving assembly;

[0018] The roller is rotatably connected to the crushing bucket body, and the drum is rotatably connected to the crushing bucket body, and the rotation direction of the roller and the drum is the same as the distribution direction from the crushing bucket inlet and the crushing bucket outlet. The rock enters the crushing bucket body from the crushing bucket inlet, and is then relatively extruded and crushed through the relative rotation between the roller and the drum, and then discharged through the crushing bucket outlet.

[0019] Optionally, a first rotating bearing is provided between the roller and the crushing bucket body, and one end of the roller is extended to the outside of the crushing bucket body; a second rotating bearing is provided between the drum and the crushing bucket body, and one end of the drum is extended to the outside of the crushing bucket body; and a second driving member is also provided on the extended ends of the roller and the drum.

[0020] Optionally, a plurality of tooth structures are provided on the outer surfaces of the roller and the drum.

[0021] Optionally, the crushing bucket includes a crushing bucket body, a fixed clamp, a movable clamp and a clamp cylinder;

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

[0023] One end of the clamp oil cylinder is hinged to the crushing bucket body, and the other end of the clamp oil 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, a plurality of tooth-shaped structures are further provided on the end surfaces of the movable clamp and the fixed clamp for crushing stones.

[0025] The present invention also provides a caisson type shaft boring machine, comprising 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 excavation, and the crushing device as described above;

[0026] The movable arm and the rotary table in the crushing device are hinged to each other, and the movable arm driving member drives the crushing device to swing relative to the rotary table;

[0027] The cutting device includes a cutting arm body, a drum base and a cutting drum arranged on the cutting arm body, the drum base is fixedly connected to one end of the cutting arm body, the cutting drum is rotatably mounted on the drum base, and the cutting drum 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 can be used in conjunction with a caisson-type shaft boring machine to crush isolated boulders and discharge them to the ground without affecting the fluidity of the slag in the slag discharge chamber; and the structure of the crushing bucket can be set to a diversified structure so that it can be flexibly selected according to the pebble particle size distribution in the stratum.

[0030] (2) The caisson-type shaft boring machine provided by the present invention can simultaneously perform cutting and excavation and crush boulders by providing a cutting device and a crushing device, without reducing the shaft boring efficiency.

[0031] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 It is a schematic diagram of the working state of a caisson type shaft boring machine in an embodiment of the present invention;

[0034] Figure 2 is a second schematic diagram of a working state of a caisson-type shaft boring machine according to an embodiment of the present invention;

[0035] Figure 3 yes Figure 1 Schematic diagram of the structure after the middle crushing device and the rotary table are connected to each other;

[0036] Figure 4 yes Figure 3 A schematic side view of the middle crushing bucket;

[0037] Figure 5 yes Figure 3 The schematic diagram of the main view of the first structure of the middle crushing bucket;

[0038] Figure 6 yes Figure 3 The schematic diagram of the front view of the second structure of the middle crushing bucket;

[0039] Figure 7 yes Figure 3 The schematic diagram of the main view of the third structure of the middle crushing bucket;

[0040] Figure 8 yes Figure 1 A partial schematic diagram of the cutting device;

[0041] Fig. 9 yes Figure 8 A partial enlarged schematic diagram of the center grille hole.

[0042] in:

[0043] 1. Crushing device, 1-1. First boom cylinder, 1-2. Second boom cylinder, 1-3. Boom, 1-4. Arm cylinder, 1-5. Arm, 1-6. Adjustment cylinder, 1-7. First connecting rod, 1-8. Second connecting rod, 1-9. Crushing bucket, 1-9-1. Moving jaw, 1-9-2. Fixed jaw, 1-9-3. Roller, 1-9-4. Drum, 1-9-5. Crushing bucket structure, 1-9-6. Crushing bucket inlet, 1-9-7. Crushing bucket outlet, 1-9-8. Fixed clamp, 1-9-9. Movable clamp, 1-9-10. Clamp cylinder;

[0044] 2. cutting device, 2-1. slurry discharge pump, 2-2. pump suction port, 2-3. first cone plate, 2-4. filter grid plate, 2-4-1. grid hole, 2-5. second cone plate, 2-6. slurry discharge pipe, 2-7. flushing port, 2-8. slag discharge chamber, 2-9. drum base, 2-10. cutting drum;

[0045] 3. Center rotary drive, 3-1. Rotary drive internal slurry discharge pipe, 3-2. Mud rotary joint;

[0046] 4. Rotating 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 invention more clear and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that the drawings of the present invention are all simplified and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the implementation of the present invention; the "number" mentioned in the present invention is not limited to the specific number in the examples in the accompanying drawings; the directions or positional relationships indicated by "front", "middle", "back", "left", "right", "up", "down", "top", "bottom", "middle", etc. mentioned in the present invention are based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction, nor can they be understood as limitations on the present invention.

[0049] Example:

[0050] See also Figure 1 and Figure 2 As shown, a caisson type shaft boring machine provided by the present invention comprises a crushing device 1 and a cutting device 2 installed on a rotating table 4 of the caisson boring machine, a central rotary drive 3 for driving the rotating table 4 to rotate 360 ​​degrees, and a swing cylinder 5 for driving the cutting device 2 to swing for excavation;

[0051] The central rotary drive 3 includes a central rotary drive body and a rotary drive internal slurry discharge pipe 3-1 and a mud rotary joint 3-2 arranged on the central rotary drive body; the rotary drive internal slurry discharge pipe 3-1 is interconnected with the slurry discharge pipe 2-6 in the cutting device 2 through the mud rotary joint 3-2 for discharging mud.

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

[0053] One end of the swing cylinder 5 is hinged to the turntable body, and the other end of the swing cylinder 5 is hinged to the cutting arm body in the cutting device 2, so as to drive the cutting arm body to swing.

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

[0055] See also Figure 3As shown, the crushing device 1 includes a first boom cylinder 1-1, a second boom cylinder 1-2, a boom 1-3, an arm cylinder 1-4, an arm 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 hinged to the boom cylinder mounting seat 4-1 in the slewing platform 4, and the other end of the first boom cylinder 1-1 is hinged to the middle part of the boom 1-3;

[0057] The second boom cylinder 1-2 is arranged parallel to the first boom cylinder 1-1, and one end of the second boom cylinder 1-2 is hinged to the boom cylinder mounting seat 4-1 in the turntable 4, and the other end of the second boom cylinder 1-2 is hinged to the middle part of the boom 1-3;

[0058] One end of the boom 1-3 is hinged to the boom mounting seat 4-2, and the other end of the boom 1-3 is hinged to one end of the arm 1-5;

[0059] One end of the arm cylinder 1-4 is hinged to the boom 1-3, and the other end of the arm cylinder 1-4 is hinged to one end of the arm 1-5;

[0060] The other end of the bucket arm 1-5 is hinged to the crushing bucket 1-9;

[0061] One end of the adjusting cylinder 1-6 is hinged to the bucket arm 1-5, the other end of the adjusting cylinder 1-6 is hinged to one end of the first connecting rod 1-7, and the middle end of the first connecting rod 1-7 is hinged to one end of the bucket arm 1-5 near the crushing bucket 1-9;

[0062] A second connecting rod 1-8 is hingedly connected to one end of the first connecting rod 1-7 for being hingedly connected to the adjusting cylinder 1-6, and the other end of the second connecting rod 1-8 is hingedly connected to the crushing bucket 1-9.

[0063] Preferably, the boom 1-3 is configured as a welded box-type structure. Specifically, the boom 1-3 includes a first side plate, a second side plate, a first cross plate and a second cross plate, the first side plate and the second side plate are arranged parallel to each other, the first cross plate is fixedly connected to one end surface of the first side plate and the second side plate at the same time, and the second cross plate is fixedly connected to the other end of the first side plate and the second side plate at the same time to form a box-type structure; the first boom cylinder 1-1 is hinged to the first side plate, the second boom cylinder 1-2 is hinged to the second side plate, the boom mounting seat 4-2 is hinged to one end of the first side plate and the second side plate close to the first cross plate at the same time, and the arm cylinder 1-4 is hinged to the first cross plate.

[0064] Preferably, the boom 1-5 is configured as a welded box-type structure. Specifically, the boom 1-5 includes a third side plate, a fourth side plate, a third transverse plate and a fourth transverse plate, the third side plate and the fourth side plate are arranged parallel to each other, the third transverse plate is fixedly connected to one end of the third side plate and the fourth side plate at the same time, and the fourth side plate is fixedly connected to the other end of the third side plate and the fourth side plate at the same time; a connecting block is also provided on the lower end surface of the third side plate and the fourth side plate, the first side plate and the second side plate are hinged to the connecting block at the same time, the adjusting cylinder 1-6 is hinged to the connecting block, and the boom cylinder 1-4 is hinged to the third transverse plate.

[0065] Preferably, stroke sensors are provided on the first boom cylinder 1-1, the second boom cylinder 1-2, the arm cylinder 1-4 and the adjusting cylinder 1-6, so that their extension lengths can be accurately adjusted, thereby achieving precise control of the posture of the crushing arm.

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

[0067] As a further embodiment of the present invention, see Figure 4 and Figure 5 As shown, when the crushing mode of the crushing bucket 1-9 is set to the jaw plate crushing mode, the main structure of the crushing bucket 1-9 is set to the bucket type structure, and the crushing bucket 1-9 specifically includes 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 hinged to the bucket rod 1-5 and the second connecting rod 1-8 at the same time, and the crushing bucket 1-9-5 is connected to the regulating oil The two end faces of the cylinder 1-6 whose displacement directions are perpendicular to each other are respectively provided with a crushing bucket inlet 1-9-6 and a crushing bucket outlet 1-9-7; the movable jaw 1-9-1 is rotatably connected to the crushing bucket body 1-9-5, the fixed jaw 1-9-2 is rotatably connected to the crushing bucket body 1-9-5, and the movable jaw 1-9-1 and the fixed jaw 1-9-2 are arranged at intervals from each other, and the rotation direction of the movable jaw 1-9-1 and the fixed jaw 1-9-2 is the same as the displacement direction of the regulating 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 from the crushing bucket inlet 1-9-6 to the crushing bucket outlet 1-9-7, and the rock enters the crushing bucket body 1-9-5 from the crushing bucket inlet 1-9-6, and then is relatively squeezed and crushed by the relative rotation between the movable jaw 1-9-1 and the fixed jaw 1-9-2, and then discharged through the crushing bucket outlet 1-9-7.

[0068] Preferably, a first rotating bearing is provided between the movable jaw 1-9-1 and the crushing bucket body 1-9-5, a second rotating bearing is provided between the fixed jaw 1-9-2 and the crushing bucket body 1-9-5, and both ends of the movable jaw 1-9-1 are respectively extended to the outside of the crushing bucket body 1-9-5; in order to realize the driving of the movable jaw 1-9-1, a first driving member is also provided on the extended end of the movable jaw 1-9-1, and the first driving member is preferably set as a motor.

[0069] Further preferably, in order to achieve effective crushing of rocks, a plurality of tooth structures are provided on the outer surfaces of the movable jaw 1-9-1 and the fixed jaw 1-9-2.

[0070] More preferably, the distance between the movable jaw 1-9-1 and the fixed jaw 1-9-2 is adjustable, and the distance between the plurality of tooth structures arranged on the outer surfaces of the movable jaw 1-9-1 and the fixed jaw 1-9-2 is set as an adjustable structure, so that the crushed stone particle size is ensured by the distance between the movable jaw 1-9-1 and the fixed jaw 1-9-2. Specifically, the distance between the movable jaw 1-9-1 and the fixed jaw 1-9-2 can be matched according to the passing capacity of the muddy and water slag discharge system.

[0071] As a further embodiment of the present invention, see Figure 4 and Figure 6 As shown, when the crushing mode of the crushing bucket 1-9 is set to a roller crushing mode, the main structure of the crushing bucket 1-9 is set to a bucket type structure, and the crushing bucket 1-9 includes a roller 1-9-3, a drum 1-9-4, 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 hinged with the bucket arm 1-5 and the second connecting rod 1-8 at the same time, and a crushing bucket inlet 1-9-6 and a crushing bucket outlet 1-9-7 are respectively provided on two end faces of the crushing bucket 1-9-5 and the displacement directions of the adjusting cylinder 1-6 that are perpendicular to each other; the roller 1-9-3 is rotatably connected to the crushing bucket main body 1-9-5, the drum 1-9-4 is rotatably connected to the crushing bucket main body 1-9-5, and the roller 1-9-3 and the drum 1-9-4 are spaced apart from each other, and the rotation directions of the roller 1-9-3 and the drum 1-9-4 are the same as the displacement direction of the adjusting cylinder 1-6. That is, the rotation direction of the roller 1-9-3 and the drum 1-9-4 is the same as the distribution direction from the crushing bucket inlet 1-9-6 to 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 relatively extruded and crushed through the relative rotation between the roller 1-9-3 and the drum 1-9-4, and is finally discharged through the crushing bucket outlet 1-9-7.

[0072] Preferably, a first rotating bearing is provided between the roller 1-9-3 and 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 roller 1-9-3 is extended to the outside of the crushing bucket body 1-9-5, and one end of the drum 1-9-4 is extended to the outside of the crushing bucket body 1-9-5; in order to realize the driving of the roller 1-9-3 and the drum 1-9-4 respectively, a second driving member is also provided on the extended ends of the roller 1-9-3 and the drum 1-9-4, and the second driving member is preferably set as a motor.

[0073] Further preferably, in order to achieve effective crushing of rocks, a plurality of tooth structures are provided on the outer surfaces of the roller 1-9-3 and the drum 1-9-4.

[0074] More preferably, the spacing between the roller 1-9-3 and the drum 1-9-4 is adjustable, and the spacing between the plurality of tooth structures arranged on the outer surfaces of the roller 1-9-3 and the drum 1-9-4 is set as an adjustable structure, so that the crushed stone particle size is ensured by the spacing between the roller 1-9-3 and the drum 1-9-4. Specifically, the spacing between the roller 1-9-3 and the drum 1-9-4 can be matched according to the passing capacity of the mud and water slag discharge system.

[0075] As a further embodiment of the present invention, see Figure 7 As shown, when the crushing mode of the crushing bucket 1-9 is set to the clamp type crushing mode, 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 clamp cylinder 1-9-10, the fixed clamp 1-9-8 is fixedly connected to the crushing bucket body 1-9-5, the movable clamp 1-9-9 is hinged to the crushing bucket body 1-9-5, one end of the clamp cylinder 1-9-10 is hinged to the crushing bucket body 1-9-5, and the other end of the clamp 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.

[0076] Preferably, in order to improve the stone crushing capability, the clamp cylinders 1-9-10 may be provided in plurality and arranged in parallel with each other.

[0077] Preferably, a plurality of tooth-shaped structures are provided on the end surfaces of the movable clamp and the fixed clamp for crushing stones.

[0078] Further preferably, when the crushing mode of the crushing bucket 1-9 is set to a clamp-type crushing mode, it can perform stone crushing operations at crushing positions ①-1, ①-2, ①-3, ..., ①-N in sequence along the excavation trajectory. The opening and closing direction of the clamp-type stone crushing device is perpendicular to the plane where the excavation trajectory is located. When the clamp-type stone crushing device moves at different crushing positions, it is in an open state to avoid pushing away the rock debris.

[0079] See also Figure 8 and Fig. 9 As shown, the cutting device 2 includes a cutting arm body and a drum base 2-9 and a cutting drum 2-10 arranged on the cutting arm body. The drum base 2-9 is fixedly connected to one end of the cutting arm body. The cutting drum 2-10 is rotatably installed on the drum base 2-9. The cutting drum 2-10 realizes 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 in the cutting arm body, one end of the slag discharge chamber 2-8 is interconnected with the slurry discharge pump 2-1 through the pump suction port 2-2, and a slurry discharge pipe 2-6 is also connected to the slurry discharge pump 2-1. The suction force of the slurry discharge pump 2-1 can suck in the slag generated by the cutting drum 2-10 during the excavation of the stratum and discharge it 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 further provided in the slag discharge chamber 2-8; the filter grid plate 2-4 is provided on a side of the cutting arm body close to the cutting drum 2-10, and a plurality of grid holes 2-4-1 are provided on the filter grid plate 2-4, and the slag generated during the excavation process of the cutting drum 2-10 is filtered through 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 2-4 The other end of the second cone plate 2-5 is extended to the end close to 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 filtering grid plate 2-4 close to the cutting arm body, and the other end of the second cone plate 2-5 is extended to the end close to 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 filtering grid plate 2-4 are connected to each other to form a conical structure with a larger end close to the cutting drum 2-10 and a smaller end close to the pump suction port 2-2, so as to facilitate the gathering of slag to the pump suction port.

[0082] Further preferably, the filtering grid plate 2-4 is preferably configured as an inner arc 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 to the slag discharge chamber 2-8.

[0083] Further preferably, the grille holes are preferably configured as a conical structure so that it has the characteristics of a large inlet and a small outlet, thereby preventing pebbles from getting stuck in the grille holes when entering the slag discharge chamber, causing blockage at the grille.

[0084] Further preferably, in order to prevent the pebbles or slag with larger particle size from settling in the slag discharge chamber 2-7, a flushing port 2-7 is further provided on the second cone plate 2-5, and a large flow of flushing liquid is injected to stir the slag and mud mixture in the slurry discharge chamber to prevent it from settling. Further preferably, the flushing liquid can be the return slurry after ground separation, and its flow rate is adjustable to prevent the solid content in the slag discharge slurry from being reduced and the slag carrying rate from being reduced due to the introduction of too much flushing liquid.

[0085] As an independent working device, the present invention complements the caisson shaft boring machine and provides users with an effective solution for handling isolated rocks. The main working process is as follows:

[0086] Step 1: Shovel slag with the crushing arm;

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

[0088] Step 2: Raise the crushing arm;

[0089] The mechanical arm lifts the crushing bucket to a certain height and enters the shovel crushing position to prevent the crushing bucket outlet from being blocked by rock debris.

[0090] Step 3, crushing;

[0091] The crushing mechanism crushes the rock mixture in the bucket and discharges it to the bottom of the well.

[0092] Step 4: The turntable rotates;

[0093] The turntable rotates a certain angle, and the crushing arm moves into position from the initial position;

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

[0095] Step 5, cycle breaking;

[0096] The rotary table rotates a certain angle again, and the crushing arm moves from position 2 to position 3;

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

[0098] Step 6: Dig downwards;

[0099] As the shaft boring machine continues to dig downward, the crushing arm follows the boring machine to complete the rock crushing operation within the full depth range.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crushing device installed in a caisson-type shaft boring machine for crushing boulders during the excavation process; characterized in that: The crushing device (1) comprises a movable arm (1-3), a bucket arm (1-5), a driving assembly and a crushing bucket (1-9); One end of the movable arm (1-3) is hinged to one end of the bucket arm (1-5), and the other end of the bucket arm (1-5) is hinged to the crushing bucket (1-9); The driving assembly is used to drive the crushing bucket (1-9) to swing, and one end of the driving assembly is hinged to the bucket arm (1-5), and the other end of the adjusting assembly is hinged to the crushing bucket (1-9); The crushing bucket (1-9) is used to crush the slag excavated by the shaft boring machine, and the crushing bucket (1-9) is configured as a jaw plate structure, a roller structure or a clamp structure.

2. The crushing device according to claim 1, characterized in that: The crushing bucket (1-9) comprises 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 simultaneously hinged with the bucket arm (1-5) and the driving assembly, and a crushing bucket inlet (1-9-6) and a crushing bucket outlet (1-9-7) are also provided on the crushing bucket (1-9); 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 direction of the movable jaw (1-9-1) and the fixed jaw (1-9-2) is the same as the distribution direction from the crushing bucket inlet (1-9-6) and the crushing bucket outlet (1-9-7). Rocks enter the crushing bucket body (1-9-5) from the crushing bucket inlet (1-9-6), and then are relatively squeezed and crushed through the relative rotation between the movable jaw (1-9-1) and the fixed jaw (1-9-2), and 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 movable jaw (1-9-1) and the crushing bucket body (1-9-5), and both ends of the movable jaw (1-9-1) are respectively extended to the outside of the crushing bucket body (1-9-5), and a first driving member is also provided on the extended end of the movable jaw (1-9-1); A second rotating 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 arranged at intervals 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 3, characterized in that: A plurality of tooth-shaped structures are also arranged on the outer surfaces of the movable jaw (1-9-1) and the fixed jaw (1-9-2).

5. The crushing device according to claim 1, characterized in that: The crushing bucket (1-9) comprises 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 bucket-type structure, and the crushing bucket body (1-9-5) is simultaneously hingedly connected to the bucket arm (1-5) and the driving assembly; 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 direction of the roller (1-9-3) and the drum (1-9-4) is the same as the distribution direction from the crushing bucket inlet (1-9-6) and the crushing bucket outlet (1-9-7). Rocks enter the crushing bucket body (1-9-5) from the crushing bucket inlet (1-9-6), and then undergo relative extrusion and crushing through relative rotation between the roller (1-9-3) and the drum (1-9-4), and then are discharged through the crushing bucket outlet (1-9-7).

6. The crushing device according to claim 5, 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) is extended to the outside of 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) is extended to the outside of the crushing bucket body (1-9-5); and a second driving member is also provided on the extended ends of the roller (1-9-3) and the drum (1-9-4).

7. The crushing device according to claim 6, characterized in that: A plurality of tooth structures are also provided on the outer surfaces of the roller (1-9-3) and the drum (1-9-4).

8. The crushing device according to claim 1, characterized in that: The crushing bucket (1-9) comprises a crushing bucket body (1-9-5), a fixed clamp (1-9-8), a movable clamp (1-9-9) and a clamp oil 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); One end of the clamp oil cylinder (1-9-10) is hinged to the crushing bucket body (1-9-5), and the other end of the clamp oil cylinder (1-9-10) is hinged to the movable clamp (1-9-9) for driving the movable clamp (1-9-9) to open and close relative to the fixed clamp (1-9-8).

9. The crushing device according to claim 8, characterized in that: A plurality of tooth-shaped structures are also arranged on the end surfaces of the movable clamp and the fixed clamp for crushing stones.

10. A caisson type shaft boring machine, characterized in that: It comprises 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 and excavate, and a crushing device (1) as claimed in any one of claims 1 to 9; The movable arm (1-3) and the rotary table (4) in the crushing device (1) are hinged to each other, and the movable arm driving member drives the crushing device (1) to swing relative to the rotary table (4); The cutting device (2) comprises a cutting arm body, a roller base (2-9) and a cutting roller (2-10) arranged on the cutting arm body, wherein the roller base (2-9) is fixedly connected to one end of the cutting arm body, and the cutting roller (2-10) is rotatably mounted on the roller base (2-9). The cutting roller (2-10) performs excavation by rotating around its own axis and swinging actively driven by the cutting arm.

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