High-pressure water jet tunneling rock crushing equipment

Abstract

The invention provides high-pressure water jet tunneling rock crushing equipment which is characterized in that milling cutter teeth are arranged on the periphery of a milling cutter disc, the milling cutter disc is rotationally connected to a milling cutter frame, and a plurality of first high-pressure spray heads located among the milling cutter teeth are arranged on the milling cutter disc; a driving shaft corresponding to the milling cutter disc is arranged on the milling cutter frame, a central hole corresponding to the milling cutter disc is formed in one end, far away from the milling cutter frame, of the driving shaft, and a through hole correspondingly communicating the high-pressure nozzle with the central hole of the driving shaft is radially formed in the milling cutter disc; one end of the rotary sealing joint is correspondingly connected to the driving shaft, and the other end of the rotary sealing joint is correspondingly connected with the high-pressure water pump; a nozzle mounting part is arranged at the front end of the first hydraulic rod and is provided with a high-pressure nozzle correspondingly pointing to the front of the milling cutter disc, and high-pressure water is introduced into the periphery of the milling cutter disc and the front end of the milling cutter frame. When the facing cutter works, a water wedge is formed in rock, rock weathering is accelerated, rock hardness is reduced, meanwhile, high-pressure water on the mechanical arm washes rock disintegrating slag, mechanical abrasion of the facing cutter is reduced, and construction cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of rock crushing and tunneling, and in particular relates to a high-pressure water jet tunneling and rock crushing equipment. Background Art

[0002] At present, rock crushing equipment such as milling machines and tunnel boring machines have been widely used in tunnel construction. However, if special working conditions are encountered, such as hard rock and mixed rock, the mechanical consumption of the milling cutter will increase, the temperature rise of the milling cutter head will be aggravated, the service life of the milling cutter will be reduced, and the construction cost will increase.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art. The present invention provides a high-pressure water jet excavation and rock crushing equipment.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A high-pressure water jet excavation and rock crushing equipment, comprising:

[0007] A milling cutter disc, wherein the outer periphery of the milling cutter disc is provided with milling cutter teeth, the milling cutter disc is rotatably connected to the milling cutter frame, and the milling cutter disc is provided with a plurality of first high-pressure nozzles located between the milling cutter teeth; the milling cutter frame is provided with a drive shaft corresponding to the milling cutter disc, and one end of the drive shaft away from the milling cutter frame is provided with a center hole corresponding to the milling cutter disc, and the milling cutter disc is radially provided with a through hole corresponding to the high-pressure nozzle and the center hole of the drive shaft;

[0008] A rotary sealing joint, one end of which is correspondingly connected to the drive shaft, and the other end of which is correspondingly connected to the high-pressure water pump;

[0009] The first hydraulic rod is located above the milling cutter frame, a nozzle mounting piece is provided at the front end of the first hydraulic rod, a high-pressure nozzle pointing to the front of the milling cutter disc is provided on the nozzle mounting piece, and the nozzle mounting piece is connected to a high-pressure water pump.

[0010] Preferably, the first hydraulic rod is correspondingly arranged on a support rod, a rear end of the support rod is hinged to the milling cutter frame, and the other end is supported on the milling cutter frame through a second hydraulic rod.

[0011] Preferably, the support rod is square, and at least two guide plates corresponding to the nozzle mounting parts are arranged above the support rod, and the guide plates are provided with through holes corresponding to the nozzle mounting parts.

[0012] Preferably, the milling cutter head is provided with a first hydraulic motor corresponding to the connected driving shaft, and the first hydraulic motor, the first hydraulic rod and the second hydraulic rod are connected to the hydraulic station of the rock crushing equipment via a multi-way hydraulic control valve.

[0013] Preferably, the high-pressure water pump is driven by a second hydraulic motor, and the second hydraulic motor is correspondingly connected to the multi-way hydraulic control valve.

[0014] Preferably, the high-pressure nozzle is a columnar structure threadedly assembled on a milling cutter disc or a nozzle mounting member, and there is a center hole inside the high-pressure nozzle, the front end of the center hole is a tapered mouth, and the smaller end of the tapered mouth extends to the end of the high-pressure nozzle to form a water outlet.

[0015] Preferably, an assembly hole corresponding to the drive shaft is provided inside the milling cutter disc, the through hole is arranged radially along the milling cutter disc, and the assembly hole is provided with annular grooves corresponding to a plurality of the through holes in the same circumferential direction of the milling cutter disc;

[0016] The driving shaft is provided with a connecting hole corresponding to the annular groove and connected to the central hole.

[0017] Preferably, the outer wall of the milling cutter disc is provided with a mounting seat corresponding to the perforation, and the mounting seat is provided with a mounting hole for threadedly assembling a high-pressure nozzle extending along the tangent of the milling cutter disc, and the mounting hole is connected to the perforation.

[0018] Preferably, the nozzle mounting piece is a drill tool, and the drill tool is a hollow rod. The front end of the drill tool is threadedly connected to the high-pressure nozzle, and the rear end of the drill tool is connected to the high-pressure water pump.

[0019] Beneficial effects: By utilizing the hydraulic system of the excavation equipment, a high-pressure water nozzle is installed on the excavation equipment to introduce high-pressure water into the periphery of the milling cutter disc and the front end of the milling cutter holder. When the milling cutter disc is working, water wedges are formed in the rock, accelerating rock weathering and reducing rock hardness. At the same time, high-pressure water on the mechanical arm flushes rock debris, reducing mechanical wear of the milling cutter disc and reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present 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. Among them:

[0021] Figure 1 A simplified structural diagram of a rock crushing device in a specific embodiment provided by the present invention;

[0022] Figure 2 A simplified cross-sectional view of a milling cutter disc in a specific embodiment provided by the present invention;

[0023] Figure 3A schematic diagram of the assembly of the support rod in the specific embodiment provided by the present invention;

[0024] Figure 4 A schematic structural diagram of a drill tool in a specific embodiment provided by the present invention;

[0025] Figure 5 It is a simplified cross-sectional view of a high-pressure nozzle in a specific embodiment provided by the present invention.

[0026] In the figure: 1. milling cutter holder; 2. milling cutter disc; 3. mounting seat; 4. high-pressure nozzle; 5. drill tool; 6. support rod; 7. rotary sealing joint; 8. high-pressure water pipe; 9. high-pressure water pump; 10. multi-way hydraulic control valve; 11. drive shaft; 12. second hydraulic rod; 13. first hydraulic rod; 14. automatic hose reel; 15. adapter sleeve; 111. access hole; 201. through hole; 202. ring groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0028] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0030] like Figure 1-5As shown, a high-pressure water jet excavation and rock crushing equipment includes a milling disc 2, a rotary sealing joint 7, and a first hydraulic rod 13, wherein the milling disc 2 is a metal rotating body, and milling teeth are distributed on the outer wall, and the milling teeth are evenly distributed on the outer periphery of the milling disc 2. The milling disc 2 is rotatably connected to the milling cutter frame 1, and the milling cutter frame 1 is used to be connected to a mechanical arm, so that the milling cutter frame 1 can be detachably replaced, and a plurality of first high-pressure nozzles 4 located between the milling cutter teeth are provided on the milling disc 2. The high-pressure nozzle 4 is used to generate a water jet, so that when the milling disc 2 is working, water wedges are formed in the rock, rock weathering is accelerated, and rock hardness is reduced. At the same time, high-pressure water on the mechanical arm flushes rock debris, reduces mechanical wear of the milling disc 2, and reduces construction costs.

[0031] A drive shaft 11 corresponding to the milling cutter disc 2 is provided on the milling cutter frame 1, and the drive shaft 11 is used to drive the milling cutter disc 2 to rotate. In the present embodiment, the drive shaft 11 is preferably perpendicular to the main body of the milling cutter frame 1, and the milling cutter frame 1 of the milling cutter disc 2 extends out of the front end of the milling cutter frame 1, thereby achieving the crushing of the rock mass. Furthermore, the drive shaft 11 extends from both sides of the milling cutter frame 1, and is respectively equipped with a milling cutter disc 2, thereby increasing the crushing area.

[0032] The end of the driving shaft 11 away from the milling cutter frame 1 is provided with a center hole corresponding to the milling cutter disc 2. The center hole is a blind hole, and the depth is adapted to the axial length of the milling cutter disc 2. The milling cutter disc 2 is radially provided with a through hole 201 corresponding to the high-pressure nozzle 4 and the center hole of the driving shaft 11. The rotary sealing joint 7 is a conventional commercially available product. One end of the rotary sealing joint 7 is correspondingly connected to the driving shaft 11, and the other end of the rotary sealing joint 7 is correspondingly connected to the high-pressure water pump 9 through a high-pressure water pipe 8. The high-pressure water pump 9 is used to generate high-pressure water. The high-pressure water passes through the center hole of the driving shaft 11 and enters the high-pressure nozzle 4 from the through hole 201, thereby forming a water flow.

[0033] In an optional embodiment, a receiving groove corresponding to the rotary sealing joint 7 is provided at the end of the milling cutter disc 2. The high-pressure water pipe 8 connected to the rotary sealing joint 7 is a hard pipe, such as a galvanized pipe. The high-pressure water pipe 8 extends toward the side wall of the milling cutter frame 1 after being bent in an L shape, and is fixed to the milling cutter frame 1 by a locking hoop.

[0034] The first hydraulic rod 13 is located above the milling cutter frame 1, and a corresponding flat surface is provided above the milling cutter frame 1. A nozzle mounting part is provided at the front end of the first hydraulic rod 13, and the nozzle mounting part is used to install a high-pressure nozzle 4. The high-pressure nozzle 4 points to the front of the milling cutter disc 2. The nozzle mounting part is connected to a high-pressure water pump 9, so as to assist in flushing and slag removal during the excavation process. The first hydraulic rod 13 can drive the high-pressure nozzle 4 to extend and retract forward, so that the first hydraulic rod 13 can be extended into the hole to be cleaned according to actual needs, thereby realizing the slag removal requirements.

[0035] In an optional embodiment, the first hydraulic rod 13 is correspondingly arranged on the support rod 6, the support rod 6 extends along the front and rear direction of the milling cutter frame 1, the rear end of the support rod 6 is hinged on the milling cutter frame 1, and the other end is supported on the milling cutter frame 1 through the second hydraulic rod 12, so that the angle of the support rod 6 can be adjusted under the drive of the second hydraulic rod 12, and then cooperate with the excavation of the milling cutter disc 2 to ensure the slag removal and excavation effect.

[0036] The support rod 6 is square, for example, it can be a metal plate, channel steel or square steel. At least two guide plates corresponding to the nozzle mounting parts are arranged above the support rod 6. The guide plates are provided with perforations 201 corresponding to the nozzle mounting parts. The perforations 201 are axially parallel to the length direction of the support rod 6, so that under the restriction of the guide plates, the nozzle mounting parts are driven to extend and retract along the length direction of the support rod 6. The nozzle mounting part is a drill 5, which is a hollow rod. The high-pressure nozzle 4 is threadedly connected at the front end of the drill 5, and the high-pressure water pump 9 is connected at the rear end of the drill 5. The drill 5 includes multiple sections, and the multiple sections of the drill 5 are fixed by screw sleeves.

[0037] The drill tool 5 is slidably assembled on the support rod 6, and the support rod 6 has a certain length. A first hydraulic rod 13 corresponding to the drill tool 5 is provided at the rear end of the support rod 6. The front end of the first hydraulic rod 13 is fixed to the side of the rear end of the drill tool 5 through a connecting plate. The first hydraulic rod 13 can drive the drill tool 5 to extend and retract under hydraulic drive, thereby cleaning the hole in all directions and improving the cleaning quality.

[0038] The high-pressure water pipe behind the drill tool 5 is a flexible pipe, and a plurality of automatic hose reels 14 corresponding to the flexible high-pressure water pipes are provided at the rear end of the support rod 6. When the drill tool 5 is driven forward, the first hydraulic cylinder pulls the high-pressure water pipe out of the automatic hose reel 14 through the driving force, and the automatic hose reel 14 automatically reels the high-pressure water pipe during the retraction of the first hydraulic cylinder.

[0039] In an optional embodiment, the milling cutter head 1 is provided with a first hydraulic motor corresponding to the drive shaft 11, and the first hydraulic motor, the first hydraulic rod 13 and the second hydraulic rod 12 are connected to the hydraulic station of the rock crushing equipment through the multi-way hydraulic control valve 10, so that the water supply and driving requirements can be met by the hydraulic station of the rock crushing equipment. The multi-way hydraulic control valve 10 is a solenoid valve and is correspondingly connected to the controller.

[0040] The high-pressure water pump 9 is driven by a second hydraulic motor, and the second hydraulic motor is correspondingly connected to a multi-way hydraulic control valve 10 .

[0041] In an optional embodiment, the high-pressure nozzle 4 is a columnar structure threadedly assembled on the milling cutter disc 2 or the nozzle mounting part, and an external thread is provided on the outside of the high-pressure nozzle 4. The high-pressure nozzle 4 is assembled on the drill 5 or the milling cutter disc 2 through the external thread. The high-pressure nozzle 4 has a central hole inside, and the front end of the central hole is a conical mouth with a taper of 60°. The conical mouth is pressurized, and the smaller end of the conical mouth extends to the end of the built-in nozzle to form a water outlet, so that water can be sprayed out under high pressure to clean the holes set up by the rock drill. The water outlet diameter is 1-2mm.

[0042] In an optional embodiment, the front end of the drill tool 5 is connected to an adapter sleeve 15, the front end of the adapter sleeve 15 is a closed end, and the adapter sleeve 15 is assembled on the end of the drill tool 5 through an internal thread. The adapter sleeve 15 is provided with a plurality of screw holes corresponding to the internal high-pressure nozzle 4, so that a plurality of high-pressure nozzles 4 can be assembled to shape the spray water column, thereby improving the effect of the spray cleaning.

[0043] In this embodiment, one end of the high-pressure nozzle 4 that is assembled with the drill tool 5 or the milling cutter disc 2 is a conical head with a taper of 60°. The front end of the high-pressure nozzle 4 is provided with a notch corresponding to a screwdriver, so that it can be installed by a screwdriver.

[0044] In an optional embodiment, an assembly hole corresponding to the drive shaft 11 is provided inside the milling cutter disc 2, and the assembly hole is set to a multi-faceted structure to ensure the connection and drive with the milling cutter disc 2, or a pin key corresponding to the drive shaft 11 is provided at one end of the assembly hole close to the milling cutter frame 1, so as to realize the rotation of the milling cutter disc 2, and the through hole 201 is radially arranged along the milling cutter disc 2. The assembly hole is provided with an annular groove 202 corresponding to multiple through holes 201 in the same circumferential direction of the milling cutter disc 2, and the drive shaft 11 is provided with a connecting hole 111 connected to the center hole corresponding to the annular groove 202, so as to connect multiple through holes 201 in the same circumferential direction through a connecting hole 111, and connect the through hole 201 and the center hole of the drive shaft 11, so as to meet the water supply demand. In this embodiment, a plurality of sealing rings corresponding to the assembly holes are provided on the drive shaft 11.

[0045] The outer wall of the milling cutter disc 2 is provided with a mounting seat 3 corresponding to the through hole 201. There is no restriction on the shape of the mounting seat 3, but the mounting seat 3 needs to have an arc-shaped surface corresponding to the outer wall of the milling cutter disc 2, so as to fix the milling cutter disc 2 by welding. The mounting seat 3 is provided with a mounting hole for threadedly assembling the high-pressure nozzle 4, which extends along the tangent of the milling cutter disc 2. The mounting hole is a threaded hole, and the mounting hole is connected to the through hole 201, so that the high-pressure nozzle 4 and the milling cutter teeth are in the same direction and on the left and right of the rock wall.

[0046] 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 principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A high-pressure water jet excavation and rock crushing equipment, characterized in that: include: A milling cutter disc, wherein the outer periphery of the milling cutter disc is provided with milling cutter teeth, the milling cutter disc is rotatably connected to the milling cutter frame, and the milling cutter disc is provided with a plurality of first high-pressure nozzles located between the milling cutter teeth; the milling cutter frame is provided with a drive shaft corresponding to the milling cutter disc, and one end of the drive shaft away from the milling cutter frame is provided with a center hole corresponding to the milling cutter disc, and the milling cutter disc is radially provided with a through hole corresponding to the high-pressure nozzle and the center hole of the drive shaft; A rotary sealing joint, one end of which is correspondingly connected to the drive shaft, and the other end of which is correspondingly connected to the high-pressure water pump; The first hydraulic rod is located above the milling cutter frame, a nozzle mounting piece is provided at the front end of the first hydraulic rod, a high-pressure nozzle pointing to the front of the milling cutter disc is provided on the nozzle mounting piece, and the nozzle mounting piece is connected to a high-pressure water pump.

2. The high-pressure water jet excavation and rock crushing equipment according to claim 1 is characterized in that: The first hydraulic rod is correspondingly arranged on the supporting rod, the rear end of the supporting rod is hinged on the milling cutter frame, and the other end is supported on the milling cutter frame through the second hydraulic rod.

3. The high-pressure water jet excavation and rock crushing equipment according to claim 2 is characterized in that: The support rod is square, and at least two guide plates corresponding to the nozzle mounting parts are arranged above the support rod, and the guide plates are provided with through holes corresponding to the nozzle mounting parts.

4. The high-pressure water jet excavation and rock crushing equipment according to claim 3 is characterized in that: The milling cutter head is provided with a first hydraulic motor corresponding to the connecting drive shaft, and the first hydraulic motor, the first hydraulic rod and the second hydraulic rod are connected to the hydraulic station of the rock crushing equipment through a multi-way hydraulic control valve.

5. The high-pressure water jet excavation and rock crushing equipment according to claim 4 is characterized in that: The high-pressure water pump is driven by a second hydraulic motor, and the second hydraulic motor is correspondingly connected to the multi-way hydraulic control valve.

6. The high-pressure water jet excavation and rock crushing equipment according to claim 1, characterized in that: The high-pressure nozzle is a columnar structure threadedly assembled on a milling cutter disc or a nozzle mounting part. There is a center hole inside the high-pressure nozzle. The front end of the center hole is a tapered mouth. The smaller end of the tapered mouth extends to the end of the high-pressure nozzle to form a water outlet.

7. The high-pressure water jet excavation and rock crushing equipment according to claim 1, characterized in that: An assembly hole corresponding to the drive shaft is provided inside the milling cutter disc, the through hole is arranged radially along the milling cutter disc, and the assembly hole is provided with annular grooves corresponding to a plurality of the through holes in the same circumferential direction of the milling cutter disc; The driving shaft is provided with a connecting hole corresponding to the annular groove and connected to the central hole.

8. The high-pressure water jet excavation and rock crushing equipment according to claim 1, characterized in that: The outer wall of the milling cutter disc is provided with a mounting seat corresponding to the through hole, and the mounting seat is provided with a mounting hole extending along the tangent line of the milling cutter disc and threadedly assembled with a high-pressure nozzle, and the mounting hole is connected to the through hole.

9. The high-pressure water jet excavation and rock crushing equipment according to claim 1, characterized in that: The nozzle mounting part is a drill tool, which is a hollow rod. The front end of the drill tool is threadedly connected to the high-pressure nozzle, and the rear end of the drill tool is connected to the high-pressure water pump.

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