Directional perforation cooperates with full-width cutter head vibration cutting hard rock equipment and construction technology

Abstract

The application provides a directional perforation and full-width cutter head vibration cutting hard rock equipment and a construction process. The equipment comprises a vibration cutter head mechanism, a rotating drum mechanism and a cutter head pushing oil cylinder. The vibration cutter head mechanism is connected with the rotating drum mechanism through the oil cylinder and rotates synchronously with the rotating drum mechanism. Two independent jet holes are arranged on the two sides of the rolling cutter, so that the directional jet flow and vibration rock breaking work of the cutter head from the bottom to the top of 180 degrees are realized. The application uses the characteristics of high cutting capacity of high-pressure water jet to assist the 180-degree annular cutting of the rolling cutter under high-frequency vibration, so that the rapid excavation of the hard rock roadway is realized.

Description

Technical Field

[0001] This invention belongs to the field of mine rock tunnel excavation, specifically involving equipment and construction technology for directional perforation combined with full-width cutterhead vibration cutting of hard rock. Background Technology

[0002] With the continuous development of mechanized mining in my country, the speed of mining face advancement has been continuously improving. However, the level of mechanization in rock tunnel excavation is generally low, resulting in low efficiency and slow speed, and the tension between mining and excavation is becoming increasingly prominent. Currently, a large number of rock tunnels still need to be excavated during mine development. With the promotion and application of fully mechanized mining technology and advanced equipment, mines face a severe problem of tight mining-excavation succession. While fully mechanized tunneling can improve rock tunnel excavation efficiency to some extent, its application in the field is limited due to the hardness of the rock strata, resulting in high dust concentrations and severe wear of cutting teeth at the tunnel face.

[0003] In most tunnel excavation projects in my country, single-arm, double-arm, or triple-arm rock drilling rigs are used. However, current cantilever technology in my country still has many shortcomings, such as long working cycles, long cycle times, and low rock-breaking efficiency. Therefore, equipment deficiencies are a significant factor affecting the quality and safety of tunnel excavation. Addressing the shortcomings of existing hard rock tunnel excavation methods and future development needs, developing new equipment suitable for hard rock tunnel excavation to achieve rapid tunneling and efficient energy resource extraction is of great significance. Summary of the Invention

[0004] The purpose of this invention is to provide a directional perforation combined with a full-width cutterhead vibration cutting device and construction process for hard rock. It uses vibration instead of traditional rotating rock-breaking cutting, and leverages the strong cutting capability of high-pressure water jets to assist high-frequency vibration of the cutter head in 180° annular cutting, achieving rapid excavation of hard rock tunnels. The technical solution is as follows:

[0005] A directional perforation combined with a full-width cutterhead vibration cutting device for hard rock includes:

[0006] Car cabin;

[0007] The cutter head propulsion cylinder 3 is used to bring the hob 11 in the vibratory cutter head mechanism into contact with the surface of the hard rock being cut, and it is located between the vibratory cutter head mechanism and the rotary drum mechanism;

[0008] The vibrating cutterhead mechanism, assisted by the directional jet mechanism, utilizes the excitation force of the roller cutter 11 to perform rock breaking work in the full-width roadway. It is mounted on the rotating drum mechanism and includes:

[0009] Vibrating plate 1 and vibrating plate support plate 2, the inner side of vibrating plate 1 is connected to vibrating plate support plate 2; the inner side of vibrating plate support plate 2 is fixed to the piston end of cutter head propulsion cylinder 3;

[0010] The hobbing cutter 11 is disposed on the outer side of the vibrating plate 1;

[0011] Piston vibrator 12 is mounted on a flat plate extending from the inner side of vibrating plate 1 and is used to provide the excitation force required for the roller cutter 11 to perform rock breaking work.

[0012] The rotary drum mechanism, used to rotate the vibrating cutter head mechanism, includes:

[0013] The roller 5 is used to drive the hob 11 to rotate, and its rotation is set in the car compartment;

[0014] The roller support plate 4 is set in the groove on the roller 5 and is fixedly connected to the cylinder end of the cutter head push cylinder 3;

[0015] A pair of rotary tension cylinders 13 are located on both sides of the axis of the roller 5. The cylinder ends are fixed to the rear plate of the vehicle compartment. The two work together to enable the roller 5 to rotate in a preset direction.

[0016] Fixed hinge I6 and movable hinge 14 are provided. Fixed hinge I6 is mounted on roller 5, and movable hinge 14 is hinged between the corresponding fixed hinge I6 and the piston end of the corresponding rotary tension cylinder 13.

[0017] Preferably, the directional jet mechanism includes:

[0018] The jet inlet is one and the jet outlet is one. The output end of the jet inlet is connected to the input end of the jet outlet. The jet inlet is opened on the vibrating plate 1 and is located on the side of the hob in the clockwise direction of movement. The jet outlet extends to the surface of the hob 11.

[0019] The jet inlet 2 and the jet outlet 2 are connected. The output end of the jet inlet 2 is connected to the input end of the jet outlet 2. The jet inlet 2 is opened on the vibrating plate 1 and is located on the side of the hob in the counterclockwise forward direction. The jet outlet 2 extends to the surface of the hob 11.

[0020] Preferably, it further includes:

[0021] The vehicle cabin is mounted on a vehicle cabin base 16.

[0022] Rock debris collection equipment, used to collect rock debris and gravel from the ground during rock breaking, includes:

[0023] The base push cylinder 18 has its cylinder end fixed in the slot below the vehicle compartment base 16;

[0024] The rear end of the feeding sloping plate 17 is fixed to the piston end of the base propulsion cylinder 18, and the distance between the feeding sloping plate 17 and the car base 16 is adjusted by the base propulsion cylinder 18.

[0025] Rotating impeller 19 is used to sweep rock debris and gravel on the ground into the groove of feeding inclined plate 17, and it is rotatably mounted on feeding inclined plate 17.

[0026] The conveyor belt 23, located in the groove of the feeding sloping plate 17 and extending into the groove of the cabin base 16, transports and cleans the rock debris and gravel swept by the rotating impeller 19.

[0027] Preferably, it further includes:

[0028] The lateral extension cylinder base 22 is located at the rear of the vehicle compartment;

[0029] Fixed hinge Ⅲ21 is fixed to the piston end of the transverse tension cylinder 20;

[0030] The lateral extension cylinder 20 is used to adjust the angle between the steering propulsion cylinder 10 and the vehicle compartment. Its cylinder end is fixed to the lateral extension cylinder base 22, and its piston end is hinged to the cylinder end of the steering propulsion cylinder 10 through the fixed hinge Ⅲ 21.

[0031] The steering propulsion cylinder 10 is symmetrically installed on both sides of the vehicle compartment to propel the vehicle compartment forward. Its piston end is hinged to the fixed hinge II9, which is fixed to the vehicle compartment.

[0032] Preferably, the power source for the rotating impeller 19 is a hydraulic motor, which is installed inside the feeding sloping plate 17.

[0033] Preferably, it further includes a rear support mechanism for confining the lateral tension cylinder base 22 between the ground and the tunnel roof, which includes:

[0034] The rear support top cylinder 24 is used to adjust the height of the rear support top plate 26. It is set on the transverse tension cylinder base 22, and its piston end extends toward the tunnel top plate.

[0035] The rear support top plate 26 is fixed to the piston end of the rear support top cylinder 24.

[0036] Preferably, the front support mechanism, used to confine the vehicle compartment between the ground and the tunnel roof, includes:

[0037] The front support top cylinder 15 is used to adjust the height of the front support top plate 25. It is located in the vehicle compartment and its piston end extends toward the direction of the tunnel top plate.

[0038] The front support top plate 25 is fixed to the piston end of the front support top cylinder 15.

[0039] Preferably, the outer wall of the roller 5 is provided with a groove for placing the fixed hinge 6 and the fixed hinge 6 is fixed by screws. A through groove is opened between the fixed hinge 6 and the roller 5 to prevent the movable hinge 14 from interfering with the fixed hinge 6 and the roller 5 when it moves.

[0040] Preferably, the coordinated operation of a pair of rotary stretching cylinders 13 includes: the upper rotary stretching cylinder 13 stretches while the lower rotary stretching cylinder 13 retracts synchronously, and the roller 5 rotates counterclockwise; the lower rotary stretching cylinder 13 stretches while the upper rotary stretching cylinder 13 retracts synchronously, and the roller 5 rotates clockwise.

[0041] A construction process for directional perforation combined with full-width cutterhead vibration cutting of hard rock includes the following steps:

[0042] Step 1: Transport the directional perforation and full-width cutterhead vibratory cutting hard rock equipment to the designated position. The front and rear support mechanisms are raised to the top of the roadway to limit the overall position.

[0043] The roller 5 is rotated by the coordinated operation of two rotary tension cylinders 13 until the plane of the hob is parallel to the ground;

[0044] The hydraulic cylinder 3, which propels the cutter head forward, makes the hob plane fit against the ground.

[0045] Step 2: Turn on the piston exciter 12 switch, and the vibrating plate 1 and the roller cutter 11 will vibrate synchronously;

[0046] The upper rotary tension cylinder 13 retracts, the lower rotary tension cylinder 13 extends, and the roller 5 drives the vibrating cutter disc mechanism to start rotating clockwise. During the rotation, the roller cutter 11 on the vibrating plate 1 crushes the hard rock in the direction of rotation through the excitation force.

[0047] When the piston vibrator 12 is switched on, a jet is introduced into one of the jet inlets and ejected at the roller jet outlet to assist the vibrating roller 11 in breaking the rock.

[0048] Step 3: When the cutter head moves to be parallel to the roadway roof, the pair of rotary tension cylinders 13 stop operating;

[0049] The front support cylinder 15 of the front support mechanism retracts, while the rear support mechanism remains unchanged;

[0050] The lateral extension cylinder 20 is activated to adjust and propulse the steering cylinder 10 to the set angle.

[0051] Start the steering propulsion cylinder 10, and the cab of the directional perforation and full-width cutter head vibration cutting hard rock equipment will move forward a set distance. Then, the steering propulsion cylinder 10 will stop stretching, and the front support mechanism will rise again to block the roadway roof.

[0052] Step 4: The upper rotary stretching oil cylinder 13 stretches, and the lower rotary stretching oil cylinder 13 retracts. At this time, the roller 5 drives the vibrating plate 1 to rotate counterclockwise.

[0053] Close jet inlet one and open jet inlet two. The high-pressure jet is ejected at jet outlet two to assist the vibrating roller cutter in breaking the rock.

[0054] When the hob face returns to parallel with the ground, the pair of rotary tension cylinders 13 stop operating and close the jet inlet 2.

[0055] When the base propulsion cylinder 18 is activated, it pushes the feeding sloping plate 17 to the set position. When the rotating impeller 19 is activated, it sweeps the crushed rock debris and gravel that fall to the ground to the groove on the feeding sloping plate 17, and then the conveyor belt 23 in the groove transports them to the outside.

[0056] Step 5: Repeat steps 2 to 4 until the steering propulsion cylinder 10 reaches its maximum stroke, the rear support cylinder 24 of the rear support mechanism retracts, the steering propulsion cylinder 10 retracts, the lateral tension cylinder base 22 of the directional perforation and full-width cutterhead vibration cutting hard rock equipment moves forward, and the rear support mechanism rises to a stop against the roadway roof, realizing the overall pulse propulsion and completing the rock breaking work after the directional perforation and full-width cutterhead vibration cutting hard rock equipment is fixed once.

[0057] Step 6: Repeat steps 2-5 to achieve rock breaking work in full-width roadways using directional perforation combined with full-width cutterhead vibration cutting hard rock equipment.

[0058] Compared with the prior art, the advantages of the present invention are:

[0059] (1) The excitation method is used instead of the traditional rotating rock breaking cutting. The high-pressure water jet cutting capability is used to assist the high-frequency vibration of the hob for 180° ring cutting.

[0060] Specifically, when the piston-type vibrator switch is activated, the vibrating plate and the roller cutter vibrate synchronously; the upper rotary tension cylinder retracts, and the lower rotary tension cylinder extends, causing the roller to drive the vibrating cutter head mechanism to start rotating clockwise. During this rotation, the roller cutters on the vibrating plate crush the hard rock in the direction of rotation through high-frequency excitation force. Similarly, the roller drives the vibrating cutter head mechanism to rotate counterclockwise, with the same principle.

[0061] The vibrating plate is equipped with two high-pressure jet inlets, corresponding to the clockwise and counterclockwise cutting cutter jet outlets, respectively. When the vibrating cutter cuts and breaks hard rock, the high-pressure jet is ejected from the direction of the cutter's advance, while the high-pressure jet in the other direction does not work. The high-pressure jet is used to pre-cut the hard rock to assist the vibrating cutter in cutting the hard rock, reducing the cutting difficulty and dust, greatly reducing the difficulty of rock breaking, improving the crushing efficiency of hard rock, and avoiding the waste of water resources.

[0062] (2) The rotating drum mechanism uses two rotating tension cylinders working together. The upper and lower rotating tension cylinders extend and retract in opposite directions, driving the movable hinges of the upper and lower parts to achieve push-pull movement, and accurately controlling the rotation angle of the drum. By utilizing the incompressible characteristics of hydraulic oil, the self-locking and stability of the rotation angle during equipment operation are guaranteed.

[0063] (3) The cutter head propulsion cylinder is installed inside the vibrating plate and can be adjusted according to the distance between the cutter and the hard rock surface. During the propulsion process, the cutter is pressed against the hard rock surface to be cut, increasing the pressure of the cutter on the hard rock surface and improving the cutting efficiency of the cutter.

[0064] (4) The rock debris collection mechanism can adjust the base propulsion cylinder according to the position of the hard rock debris after cutting, so that the feeding inclined plate is pushed to the position of the debris that needs to be cleaned. The maximum stroke of the base propulsion cylinder can exceed the surface of the hard rock crushed by the roller cutter, ensuring that the rock debris and gravel are completely cleaned.

[0065] The feeding ramp is designed with a certain slope, so that the gravel that is cleaned by the rotating impeller to the top of the feeding ramp and is difficult to clean will slide down due to its own gravity and eventually be swept into the conveyor belt in the groove of the feeding ramp. The structure is simple and the cleaning efficiency is high. Attached Figure Description

[0066] Figure 1 This is an overall diagram of the directional perforation and full-width cutterhead vibration cutting equipment for hard rock according to the present invention;

[0067] Figure 2 This is a schematic diagram of the working path of the directional perforation and full-width cutterhead vibration cutting hard rock equipment of the present invention;

[0068] Figure 3 This is a schematic diagram of the rotating drum mechanism in this invention;

[0069] Figure 4 This is a schematic diagram of the front vehicle compartment in this invention;

[0070] Figure 5 This is a schematic diagram of the rock slag collection mechanism in this invention;

[0071] Figure 6 This is a schematic diagram of the vibrating cutter head mechanism in this invention;

[0072] Figure 7 This is a cross-sectional view of the assembly of the hob and the vibrating plate in this invention;

[0073] Figure 8 This is a partial top view of the present invention.

[0074] Among them, 1-vibrating plate, 2-vibrating plate support plate, 3-cutter head propulsion cylinder, 4-roller support plate, 5-roller, 6-fixed hinge I, 7-front compartment, 8-rear compartment, 9-fixed hinge II, 10-steering propulsion cylinder, 11-roll cutter, 12-piston vibrator, 13-rotary tension cylinder, 14-movable hinge, 15-front support top cylinder, 16-compartment base, 17-feeding inclined plate, 18-base propulsion cylinder, 19-rotating impeller, 20-lateral tension cylinder, 21-fixed hinge III, 22-lateral tension cylinder base, 23-conveyor belt, 24-rear support top cylinder, 25-front support top plate, 26-rear support top plate, 27-cylinder partition. Implementation

[0075] The present invention will now be described in more detail with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the invention.

[0076] like Figures 1-6 As shown, a directional perforation combined with a full-width cutterhead vibratory cutting device for hard rock includes a rotary drum mechanism for completing 180° annular cutting of the vibratory cutterhead mechanism. This is achieved by coordinating two rotary tension cylinders 13, whose opposite extension and retraction drives the movable hinges of the upper and lower parts to achieve push-pull motion, precisely controlling the rotation angle of the drum. The incompressible nature of hydraulic oil ensures the self-locking and stability of the rotation angle during operation.

[0077] During operation, the vibrating plate 1 is equipped with two high-pressure jet inlets, corresponding to the clockwise and counterclockwise cutting cutter jet outlets, respectively. When the vibrating cutter cuts and breaks hard rock, the high-pressure jet is ejected from the direction of the cutter's advance, while the high-pressure jet in the other direction does not operate. The high-pressure jet is used to pre-cut the hard rock to assist the vibrating cutter in cutting the hard rock, reducing the cutting difficulty and dust, greatly reducing the difficulty of rock breaking, improving the crushing efficiency of hard rock, and avoiding the waste of water resources.

[0078] After completing one cycle of cutting, the rock debris collection mechanism can adjust the base propulsion cylinder according to the position of the cut hard rock fragments, so that the feeding inclined plate is pushed to the position of the fragments that need to be cleaned. The maximum stroke of the base propulsion cylinder can exceed the surface of the hard rock crushed by the roller cutter, ensuring that the rock debris and fragments are completely cleaned up.

[0079] The specific structure includes:

[0080] The vehicle compartment base 16 has a vehicle compartment mounted on it; the vehicle compartment is divided into a front vehicle compartment 7 and a rear vehicle compartment 8, with a partition in between. The cylinder ends of the two rotary tension cylinders 13 are fixed to the partition. Figure 4 As shown, the front compartment 7 is a rectangular shell structure. The four grooves at the top are used to install the front support cylinder 15, and the two rectangular grooves on the side are used to symmetrically install the fixing hinge II 9. The rear plate of the front compartment 7 is used to fix and support the two rotating tension cylinders 13. The bottom is connected to the compartment base 16, and the semi-circular through groove is connected to the roller 5, which can realize relative rotation.

[0081] The transverse tension cylinder base 22 is located at the rear of the vehicle compartment. The fixed hinge Ⅲ 21 is fixed to the piston end of the transverse tension cylinder 20.

[0082] The lateral extension cylinder 20 is used to adjust the angle between the steering propulsion cylinder 10 and the vehicle compartment. Its cylinder end is fixed to the cylinder partition 27 on the lateral extension cylinder base 22, and its piston end is hinged to the cylinder end of the steering propulsion cylinder 10 via a fixed hinge III 21. The extension and retraction of the lateral extension cylinder 20 controls the angle between the steering propulsion cylinder 10 and the front vehicle compartment, thereby enabling the front vehicle compartment to achieve steering. Specifically, as shown... Figure 8 As shown, if the cabin turns to the right, the left lateral extension cylinder 20 extends and the right lateral extension cylinder 20 retracts, thereby causing the cabin to turn.

[0083] During the excavation of coal mine roadways by roadheaders, multiple consecutive turns are sometimes required, with varying distances and angles, posing significant challenges to continuous roadway construction. In this embodiment, by turning the vehicle cab, a roadway with a large-angle turn can be broken down into several consecutive turns for construction.

[0084] During the steering process, the overall length of the steering propulsion cylinder 10 remains unchanged (i.e., the steering propulsion cylinder 10 is equivalent to a rigid body). The reason is that the piston end of the steering propulsion cylinder 10 is hinged between a pair of limiting plates, which are fixed to the fixed hinge II 9.

[0085] Steering propulsion cylinder 10 is symmetrically installed on both sides of the vehicle compartment to propel the vehicle compartment forward. Its piston end is hinged to fixed hinge II 9, which is fixed to the vehicle compartment.

[0086] The cutter head propulsion cylinder 3 is used to press the hob 11 in the vibratory cutter head mechanism against the surface of the hard rock being cut, and it is located between the vibratory cutter head mechanism and the rotary drum mechanism.

[0087] like Figure 2As shown, the vibratory cutter head mechanism works clockwise at this time. The double-shaded area represents the cutting path from the bottom to the middle. When the cutter head cuts to the top, the entire cabin moves forward a certain distance, so that the hob cutter face contacts the hard rock surface and then performs counterclockwise cutting, and this cycle continues.

[0088] Both the front and rear support mechanisms serve to temporarily fix the left and right sides, ensuring the stability of the directional perforation and full-width cutterhead vibration cutting hard rock equipment during the rock breaking process.

[0089] like Figure 6 As shown, the vibratory cutterhead mechanism, assisted by the directional jet mechanism, uses the excitation force of the roller cutter 11 to perform rock breaking work in the full-width roadway. It is mounted on a rotary drum mechanism and includes:

[0090] The vibrating plate 1 and the vibrating plate support plate 2 are provided. The inner side of the vibrating plate 1 is connected to the vibrating plate support plate 2. The inner side of the vibrating plate support plate 2 is fixed to the piston end of the cutter head propulsion cylinder 3. In this embodiment, the vibrating plate 1 is T-shaped, and there are four hobbing cutters 11 and four piston exciters 12.

[0091] The hobbing cutter 11 is located on the outer side of the vibrating plate 1.

[0092] A piston-type vibrator 12 is mounted on a flat plate extending from the inner side of the vibrating plate 1. It provides the high-frequency excitation force required for the roller cutter 11 to perform rock-breaking work, imparting vertical excitation to the vibrating plate 1 in the width direction. For example... Figure 6 As shown, the extension plate vibrates vertically in the plane direction, parallel to the vibrating plate 1. The extension plate is perpendicular to the vibrating plate 1.

[0093] like Figure 7 As shown, the directional jet mechanism includes:

[0094] The jet inlet is one and the jet outlet is one. The output end of the jet inlet is connected to the input end of the jet outlet. The jet inlet is opened on the vibrating plate 1 and is located on the side of the hob in the clockwise direction of movement. The jet outlet extends to the surface of the hob 11.

[0095] The jet inlet 2 and the jet outlet 2 are connected. The output end of the jet inlet 2 is connected to the input end of the jet outlet 2. The jet inlet 2 is opened on the vibrating plate 1 and is located on the side of the hob in the counterclockwise forward direction. The jet outlet 2 extends to the surface of the hob 11.

[0096] like Figure 3 As shown, the rotary drum mechanism, used to rotate the vibrating cutter head mechanism, includes:

[0097] Roller 5 is used to drive the hob cutter 11 to rotate, and its rotation is located in the car compartment;

[0098] The roller support plate 4 is installed in the groove on the roller 5 by screws and is fixedly connected to the cylinder end of the cutter head push cylinder 3.

[0099] A pair of rotary tensioning cylinders 13 are located on both sides of the axis of the roller 5, with their cylinder ends fixed to the rear panel of the vehicle compartment. Their coordinated operation enables the roller 5 to rotate in a preset direction. Specifically, the coordinated operation of the pair of rotary tensioning cylinders 13 includes: when the upper rotary tensioning cylinder 13 extends, the lower rotary tensioning cylinder 13 retracts simultaneously, and the roller 5 rotates counterclockwise; when the lower rotary tensioning cylinder 13 extends, the upper rotary tensioning cylinder 13 retracts simultaneously, and the roller 5 rotates clockwise.

[0100] Fixed hinge I6 and movable hinge 14 are provided. Fixed hinge I6 is installed on roller 5 by screws, and movable hinge 14 is hinged between the corresponding fixed hinge I6 and the piston end of the corresponding rotary tension cylinder 13.

[0101] Furthermore, the outer wall of the roller 5 is provided with a groove for placing the fixed hinge 6 and the fixed hinge 6 is fixed by screws. A through groove is opened between the fixed hinge 6 and the roller 5 to prevent the movable hinge 14 from interfering with the fixed hinge 6 and the roller 5 when it moves.

[0102] That is, the specific operation is as follows: the upper rotary stretching cylinder 13 slowly stretches, and the lower rotary stretching cylinder 13 slowly retracts, at which time the roller 5 rotates counterclockwise; the upper rotary stretching cylinder slowly retracts, the lower rotary stretching cylinder slowly stretches, and the roller 5 begins to rotate clockwise.

[0103] like Figure 5 As shown, a rock debris collection mechanism is used to collect rock debris and gravel on the ground during rock breaking, and it includes:

[0104] The base push cylinder 18 has its cylinder end fixed in the slot below the vehicle compartment base 16;

[0105] The rear end of the feeding sloping plate 17 is fixed to the piston end of the base propulsion cylinder 18, and the distance between the feeding sloping plate 17 and the car base 16 is adjusted by the base propulsion cylinder 18.

[0106] A rotating impeller 19 is used to sweep rock debris and gravel from the ground into the groove of the feeding ramp 17. It is rotatably mounted on the feeding ramp. The power source for the rotating impeller 19 is a hydraulic motor, installed inside the feeding ramp 17. Two rotating impellers 19 are symmetrically mounted on the feeding ramp 17. The diameter of each impeller is half the length of the feeding ramp and equal to its width, ensuring that no rock debris or gravel remains on the feeding ramp and maximizing the cleaning efficiency of the two rotating impellers.

[0107] Conveyor belt 23 is located within the groove of feeding sloping plate 17 and extends into the groove of the cabin base 16, as shown below. Figure 5As shown, the conveyor belt 23 transports and cleans the rock debris and gravel swept by the rotating impeller 19. Specifically, the pulleys driving the conveyor belt 23 (drive pulley and driven pulley) have the drive pulley located in the groove of the feeding sloping plate 17, and the driven pulley rotatably located in the groove of the chassis base 16. The motor driving the drive pulley is located inside the feeding sloping plate 17. Figure 5 It can be seen that the groove of the feeding sloping plate 17 is located between the rotating impellers 19. Specifically, a belt conveyor can be used.

[0108] The rock debris collection mechanism can adjust the base propulsion cylinder 18 according to the position of the hard rock fragments after cutting, so that the feeding sloping plate 17 is pushed to the position of the fragments that need to be cleaned. The maximum stroke of the base propulsion cylinder 18 can exceed the surface of the hard rock crushed by the roller cutter 11, ensuring that the rock debris and fragments are completely cleaned. The feeding sloping plate 17 adopts a certain slope design, so that the fragments that are cleaned by the rotating impeller 19 to the top part of the feeding sloping plate 17 and are not easy to clean slide down due to their own gravity and are finally cleaned into the conveyor belt 23 in the groove of the feeding sloping plate 17.

[0109] A front support mechanism, used to confine the vehicle compartment between the ground and the tunnel roof, includes a front support cylinder 15 and a front support plate 25. The front support cylinder 15, used to adjust the height of the front support plate 25, is located in the vehicle compartment, and its piston end extends toward the tunnel roof; the front support plate 25 is fixed to the piston end of the front support cylinder 15.

[0110] The rear support mechanism, used to confine the transverse tension cylinder base 22 between the ground and the tunnel roof, includes a rear support cylinder 24 and a rear support plate 26. The rear support cylinder 24, used to adjust the height of the rear support plate 26, is disposed on the transverse tension cylinder base 22, and its piston end extends toward the tunnel roof; the rear support plate 26 is fixed to the piston end of the rear support cylinder 24.

[0111] A construction process for directional perforation combined with full-width cutterhead vibration cutting of hard rock includes the following steps:

[0112] Step 1: Transport the directional perforation and full-width cutterhead vibratory cutting hard rock equipment to the designated position. The front and rear support mechanisms are raised to the top of the roadway to limit the overall position.

[0113] The roller 5 is rotated by the coordinated operation of two rotary tension cylinders 13 until the plane of the hob is parallel to the ground;

[0114] The operating cylinder 3 pushes the cutter head forward to make the hob plane fit against the ground.

[0115] Step 2: Turn on the piston exciter 12 switch, and the vibrating plate 1 and the roller cutter 11 will vibrate synchronously;

[0116] The upper rotary tension cylinder 13 retracts, the lower rotary tension cylinder 13 extends, and the roller 5 drives the vibrating cutter disc mechanism to start rotating clockwise. During the rotation, the roller cutter 11 on the vibrating plate 1 crushes the hard rock in the direction of rotation through high-frequency excitation force.

[0117] When the piston vibrator 12 is switched on, the jet inlet 1 is also activated simultaneously. The high-pressure jet is ejected from the cutter jet outlet 1 to assist the vibrating cutter 11 in breaking rocks. Specifically, a high-pressure water pipe is connected to the jet inlet 1, which is connected to the output end of a pump (pressure plunger pump). The pressure plunger pump draws water from the reservoir, pressurizes the water, and then delivers it to the high-pressure water pipe to form a high-pressure jet.

[0118] The pressure plunger pump is turned on to activate the jet inlet connected to it.

[0119] The "jet" is formed by the high-pressure water flow output from the high-pressure water pipe.

[0120] Step 3: When the cutter head moves to be parallel to the roadway roof, the pair of rotary tension cylinders 13 stop operating;

[0121] The front support cylinder 15 of the front support mechanism retracts, while the rear support mechanism remains unchanged;

[0122] The lateral extension cylinder 20 is activated to adjust the steering propulsion cylinder 10 to a suitable angle. The steering propulsion cylinder 10 is then activated, and the cab of the directional perforation equipment, which works in conjunction with the full-width cutter head vibration cutting hard rock, moves forward a set distance. The steering propulsion cylinder 10 stops extending, and the front support mechanism rises again to meet the roof of the tunnel.

[0123] Step 4: The upper rotary stretching oil cylinder 13 stretches, and the lower rotary stretching oil cylinder 13 retracts. At this time, the roller 5 drives the vibrating plate 1 to rotate counterclockwise.

[0124] Close jet inlet one and open jet inlet two. The high-pressure jet is ejected at jet outlet two to assist the vibrating roller cutter in breaking the rock.

[0125] When the hob face returns to parallel with the ground, the pair of rotary tension cylinders 13 stop operating and close the jet inlet 2.

[0126] When the base propulsion cylinder 18 is activated, it pushes the feeding sloping plate 17 to the set position. When the rotating impeller 19 is activated, it sweeps the crushed rock debris and gravel that fall to the ground to the groove on the feeding sloping plate 17, and then the conveyor belt 23 in the groove transports them to the outside.

[0127] Step 5: Repeat steps 2 to 4 until the steering propulsion cylinder 10 reaches its maximum stroke, the rear support cylinder 24 of the rear support mechanism retracts, the steering propulsion cylinder 10 retracts, the lateral tension cylinder base 22 of the directional perforation and full-width cutterhead vibration cutting hard rock equipment moves forward, and the rear support mechanism rises to a stop against the roadway roof, realizing the overall pulse propulsion and completing the rock breaking work after the directional perforation and full-width cutterhead vibration cutting hard rock equipment is fixed once.

[0128] Step 6: Repeat steps 2-5 to achieve rock breaking work in full-width roadways using directional perforation combined with full-width cutterhead vibration cutting hard rock equipment.

[0129] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the present invention. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and content disclosed in the present invention without departing from the scope of the present invention shall be deemed to have remained within the protection scope of the present invention.

Claims

1. A directional perforation combined with a full-width cutterhead vibration cutting device for hard rock, characterized in that, include: Car cabin; The cutter head push cylinder (3) is used to press the hob (11) in the vibrating cutter head mechanism against the surface of the hard rock being cut. It is located between the vibrating cutter head mechanism and the rotating drum mechanism. The vibratory cutterhead mechanism, assisted by the directional jet mechanism, performs rock-breaking work in the full-width roadway through the excitation force of the roller cutter (11). It is mounted on the rotary drum mechanism and includes: Vibrating plate (1) and vibrating plate support plate (2), the inner side of the vibrating plate (1) is connected to the vibrating plate support plate (2); the inner side of the vibrating plate support plate (2) is fixed to the piston end of the cutter head propulsion cylinder (3); A hobbing cutter (11) is disposed on the outer side of the vibrating plate (1); Piston vibrator (12) is installed on a flat plate extending from the inner side of the vibrating plate (1) to provide the excitation force required for the roller cutter (11) to perform rock breaking work; The rotary drum mechanism, used to rotate the vibrating cutter head mechanism, includes: A roller (5) is used to drive the hob (11) to rotate, and its rotation is set in the cabin; The roller support plate (4) is set in the groove on the roller (5) and is fixedly connected to the cylinder end of the cutter head push cylinder (3); A pair of rotary tension cylinders (13) are located on both sides of the axis of the roller (5), and the cylinder ends are fixed on the rear plate of the cabin. The two work together to enable the roller (5) to rotate in the preset direction. Fixed hinge I (6) and movable hinge (14), fixed hinge I (6) is mounted on roller (5), and movable hinge (14) is hinged between the corresponding fixed hinge I (6) and the piston end of the corresponding rotary tension cylinder (13); The coordinated operation of a pair of rotary stretching cylinders (13) includes: when the upper rotary stretching cylinder (13) stretches, the lower rotary stretching cylinder (13) retracts synchronously, and the roller (5) rotates counterclockwise; when the lower rotary stretching cylinder (13) stretches, the upper rotary stretching cylinder (13) retracts synchronously, and the roller (5) rotates clockwise.

2. The directional perforation combined with full-width cutterhead vibration cutting equipment for hard rock as described in claim 1, characterized in that, The directional jet mechanism includes: Jet inlet 1 and jet outlet 1, the output end of jet inlet 1 is connected to the input end of jet outlet 1, the jet inlet 1 is opened on the vibrating plate (1) and located on the side of the hob in the clockwise forward direction, and the jet outlet 1 extends to the surface of the hob (11). The jet inlet is two and the jet outlet is two. The output end of the jet inlet is connected to the input end of the jet outlet. The jet inlet is opened on the vibrating plate (1) and located on the side of the hob in the counterclockwise direction. The jet outlet extends to the surface of the hob (11).

3. The directional perforation combined with full-width cutterhead vibration cutting equipment for hard rock as described in claim 2, characterized in that, Also includes: A vehicle cabin base (16) on which the vehicle cabin is mounted; Rock debris collection equipment, used to collect rock debris and gravel from the ground during rock breaking, includes: The base propulsion cylinder (18) has its cylinder end fixed in the slot below the vehicle compartment base (16); The rear end of the feeding sloping plate (17) is fixed to the piston end of the base propulsion cylinder (18), and the distance between the feeding sloping plate (17) and the car base (16) is adjusted by the base propulsion cylinder (18); A rotating impeller (19) is used to sweep rock debris and gravel from the ground into the groove of the feeding sloping plate (17), which is rotatably mounted on the feeding sloping plate (17). The conveyor belt (23), located in the groove of the feeding sloping plate (17) and extending into the groove of the cabin base (16), transports and cleans the rock debris and gravel swept by the rotating impeller (19).

4. The directional perforation combined with full-width cutterhead vibration cutting equipment for hard rock as described in claim 3, characterized in that, Also includes: The transverse extension cylinder base (22) is located at the rear of the vehicle compartment; Fixed hinge Ⅲ (21) is fixed to the piston end of the transverse tension cylinder (20); A transverse tension cylinder (20) is used to adjust the angle between the steering propulsion cylinder (10) and the vehicle compartment. Its cylinder end is fixed to the transverse tension cylinder base (22), and its piston end is hinged to the cylinder end of the steering propulsion cylinder (10) through a fixed hinge III (21). The steering propulsion cylinder (10) is symmetrically installed on both sides of the vehicle compartment to propel the vehicle compartment forward. Its piston end is hinged to the fixed hinge II (9), which is fixed to the vehicle compartment.

5. The directional perforation combined with full-width cutterhead vibration cutting equipment for hard rock as described in claim 4, characterized in that, The power source for the rotating impeller (19) is a hydraulic motor, which is installed inside the feeding sloping plate (17).

6. The directional perforation combined with full-width cutterhead vibration cutting equipment for hard rock as described in claim 5, characterized in that, It also includes a rear support mechanism for confining the lateral tension cylinder base (22) between the ground and the tunnel roof, which includes: The rear support top cylinder (24) is used to adjust the height of the rear support top plate (26). It is set on the transverse tension cylinder base (22), and its piston end extends toward the tunnel top plate. The rear support top plate (26) is fixed to the piston end of the rear support top cylinder (24).

7. The directional perforation combined with full-width cutterhead vibration cutting equipment for hard rock as described in claim 6, characterized in that, A front support mechanism for confining the vehicle compartment between the ground and the tunnel roof, comprising: The front support top cylinder (15) is used to adjust the height of the front support top plate (25). It is located in the vehicle compartment and its piston end extends toward the tunnel top plate. The front support top plate (25) is fixed to the piston end of the front support top cylinder (15).

8. The directional perforation combined with full-width cutterhead vibration cutting equipment for hard rock according to claim 7, characterized in that, The outer wall of the roller (5) is provided with a groove for placing the fixed hinge (6) and the fixed hinge (6) is fixed by screws. A through groove is opened between the fixed hinge (6) and the roller (5) to prevent the movable hinge (14) from interfering with the fixed hinge (6) and the roller (5) when it moves.

9. A construction process for a hard rock cutting equipment using directional perforation combined with full-width cutterhead vibration cutting as described in claim 8, characterized in that, Includes the following steps: Step 1: Transport the directional perforation and full-width cutterhead vibratory cutting hard rock equipment to the designated position. The front and rear support mechanisms are raised to the top of the roadway to limit the overall position. The roller (5) is rotated by the coordinated operation of two rotary tension cylinders (13) until the plane of the hob is parallel to the ground; The operating cutter head propulsion cylinder (3) makes the hob plane fit against the ground; Step 2: Turn on the piston exciter (12) switch, and the vibrating plate (1) and the roller (11) vibrate synchronously; The upper rotary stretching cylinder (13) retracts, the lower rotary stretching cylinder (13) stretches, and the roller (5) drives the vibrating cutter disc mechanism to start rotating clockwise. During the rotation, the roller cutter (11) on the vibrating plate (1) crushes the hard rock in the direction of rotation through the excitation force. When the piston vibrator (12) is switched on, a jet is introduced into the jet inlet and ejected at the cutter jet outlet to assist the vibrating cutter (11) in breaking the rock. Step 3: When the cutter head moves to be parallel to the roadway roof, a pair of rotary tension cylinders (13) stop operating; The front support cylinder (15) of the front support mechanism retracts, while the rear support mechanism remains unchanged; The lateral stretching cylinder (20) is activated to adjust the steering and propulsion cylinder (10) to the set angle; Start the steering propulsion cylinder (10), the directional perforation and full-width cutterhead vibration cutting hard rock equipment cabin moves forward a set distance, the steering propulsion cylinder (10) stops stretching, and the front support top mechanism rises again to abut against the roadway roof; Step 4: The upper rotary stretching cylinder (13) stretches, and the lower rotary stretching cylinder (13) retracts. At this time, the roller (5) drives the vibrating plate (1) to rotate counterclockwise. Close jet inlet one and open jet inlet two. The high-pressure jet is ejected at jet outlet two to assist the vibrating roller cutter in breaking the rock. When the hob face returns to parallel with the ground, a pair of rotary tension cylinders (13) stop operating and close the jet inlet 2; The base propulsion cylinder (18) is started, pushing the feeding sloping plate (17) to the set position. The rotating impeller (19) is started, sweeping the crushed rock debris and gravel that fell to the ground to the groove on the feeding sloping plate (17), and then conveying them to the outside by the conveyor belt (23) in the groove. Step 5: Repeat steps 2 to 4 until the steering propulsion cylinder (10) reaches its maximum stroke, the rear support cylinder (24) of the rear support mechanism retracts, the steering propulsion cylinder (10) retracts, the lateral tension cylinder base (22) of the directional perforation and full-width cutterhead vibration cutting hard rock equipment moves forward, and the rear support mechanism rises to a stop against the roadway roof, realizing the overall pulse propulsion and completing the rock breaking work after the directional perforation and full-width cutterhead vibration cutting hard rock equipment is fixed once; Step 6: Repeat steps 2 to 5 to achieve rock breaking work in full-width roadways using directional perforation combined with full-width cutterhead vibration cutting hard rock equipment.

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