High-efficiency rock breaking drill bit based on torsional impact

Abstract

The application discloses a high-efficiency rock breaking drill bit based on torsional impact, and belongs to the technical field of rock breaking tools. The high-efficiency rock breaking drill bit comprises a supporting shell, the inside of the supporting shell is fixedly connected with a mounting base plate, and one side of the mounting base plate is fixedly connected with a servo motor. The application is provided with a gas cleaning assembly, which is connected with a reciprocating push rod and comprises a connecting baffle, a piston sleeve, a piston rod, a piston plate, an air inlet pipe, an air inlet check valve, an air outlet pipe and an air outlet check valve. The gas compression and discharge are driven by the reciprocating movement of the impact mechanism, intermittent air blowing and cleaning are realized on one side of the broken drill bit, the reciprocating impact movement and the gas cleaning function are coupled through structural design, the cleaning operation can be realized by the kinetic energy of the impact mechanism itself, an independent cleaning power source does not need to be additionally arranged, the system redundancy is reduced, the rock debris is effectively removed through the intermittence of the reciprocating movement, the friction and wear are reduced, and the state of the drill bit continuously and efficiently breaking rocks is maintained.

Description

Technical Field

[0001] This invention relates to the field of rock breaking tools, and in particular to a high-efficiency rock breaking drill bit based on torsional impact. Background Technology

[0002] With the gradual depletion of shallow oil and gas resources, drilling operations in deep hard formations (such as granite and quartz sandstone) are becoming increasingly common. Polycrystalline diamond composite (PDC) drill bits have become the mainstream rock-breaking tool due to their high rock-breaking efficiency. However, during drilling in deep hard formations, the high compressive strength of the rock and the drastic torque fluctuations experienced by the drill bit easily induce the "stick-slip vibration" phenomenon. This phenomenon manifests as frequent momentary jamming and sudden release of the drill bit during drilling, which not only causes impact damage to the cutting teeth but also significantly reduces the mechanical drilling rate, increasing drilling time and costs.

[0003] Currently, there is no technical solution for rock-breaking drill bits that can use the reciprocating motion generated by the impact mechanism itself to synchronously drive the gas cleaning drill bit during operation. There is a lack of a structural design that couples the reciprocating impact motion with the gas chip removal function. This makes it impossible to achieve chip removal by relying on the kinetic energy of the impact mechanism itself. This not only increases system redundancy but also misses the opportunity to use the reciprocating motion to intermittently remove rock chips, reduce friction and wear, and maintain the drill bit's continuous and efficient rock breaking. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in the prior art, the chip removal operation cannot be achieved by the kinetic energy of the impact mechanism itself, which increases system redundancy and misses the opportunity to use reciprocating motion to intermittently remove rock chips, reduce friction and wear, and maintain the continuous and efficient rock breaking of the drill bit. Therefore, this invention proposes a high-efficiency rock breaking drill bit based on torsional impact.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency rock-breaking drill bit based on torsional impact includes a support housing. A mounting base is fixedly connected inside the support housing. A servo motor is fixedly connected to one side of the mounting base. A drive gear is mounted on the output shaft of the servo motor. A connecting base is fixedly connected to the inner side of the support housing. A driven gear is rotatably connected inside the connecting base. The driven gear meshes with the drive gear. A lever is coaxially mounted on the top of the driven gear. A top cover plate is mounted on the top of the support housing, and a stepless speed-regulating lever is mounted on the top cover plate. The continuously variable speed control lever is electrically connected to the actuating block and is used to adjust the magnetic strength of the actuating block. A mounting baffle is fixedly connected to the top of the connecting base, and a reciprocating push rod is inserted inside the mounting baffle. The mounting baffle is used to guide the reciprocating motion of the reciprocating push rod. A return spring is fixedly connected to one side of the reciprocating push rod and is used to promote the reciprocating push rod to return to the left. One end of the reciprocating push rod is connected to the rock crushing drill bit. The actuating block is used to intermittently push the reciprocating push rod to achieve torsional impact on the rock crushing drill bit.

[0007] Preferably, an electromagnetic plate is fixedly connected to the side of the reciprocating push rod near the actuating block. The actuating block is an electromagnetic structure. When the actuating block is in the state of being close to the electromagnetic plate, the electromagnetic plate is in a state of being magnetically pushed to move to the far end.

[0008] Preferably, a connecting baffle is fixedly connected to one side of the reciprocating push rod, and a piston sleeve is fixedly connected to one end of the connecting baffle. A piston rod is installed inside the piston sleeve, and the piston rod is connected to an electromagnetic plate. A piston plate for compressing the gas inside the piston sleeve is fixedly connected to one end of the piston rod.

[0009] Preferably, a piston spring is fixedly connected between the piston plate and the piston sleeve, and the piston spring is used to push the electromagnetic plate to reset to the toggle block side.

[0010] Preferably, one end of the piston sleeve is fixedly connected to an air inlet pipe extending out of the support housing, and an air inlet check valve is installed on the outside of the air inlet pipe. The other end of the piston sleeve is fixedly connected to a vent pipe, and a vent check valve is fixedly connected to the outside of the vent pipe. The air outlet end of the vent pipe extends outward out of the support housing and is used to blow air to one side of the breaker bit to remove chips.

[0011] Preferably, the upper cover plate has an installation hole inside, and a fixing bolt is installed inside the installation hole. A gripping rod is fixedly connected to the outer wall of the support housing. There are two gripping rods, which are symmetrically fixed on the front and rear sides of the outer wall of the support housing.

[0012] Preferably, a battery is fixedly connected to the inner side of the support housing, and a charging interface is fixedly connected to one end of the battery, with the charging interface extending outward from the support housing.

[0013] Preferably, a support base plate is fixedly connected to the inner side of the support housing, a crushing motor is fixedly connected to one side of the support base plate, a gear rod is installed on the output shaft of the crushing motor, a connecting shaft is rotatably connected to the inner side of the support base plate, and a guide gear is fixedly connected to the outer wall of the connecting shaft. The guide gear meshes with the gear rod for transmission.

[0014] Preferably, a connecting chuck is fixedly connected to the outer side of the connecting shaft, and an adjusting head is fixedly connected to the side of the connecting chuck away from the connecting shaft. A crushing drill bit is clamped and limited on the inner side of the adjusting head, and the crushing drill bit is used to crush rocks.

[0015] Preferably, one end of the reciprocating push rod is connected to the connecting shaft, and when the actuating block is in the state of moving the reciprocating push rod to the right, the reciprocating push rod is in the state of pushing the breaker drill bit to reciprocate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In this invention, by setting up components such as a servo motor, drive gear, driven gear, and actuating block, the meshing relationship between the drive gear and driven gear enables the actuating block to obtain stable rotational power. This device can generate intermittent mechanical impacts through an independent power source. This impact force acts directly on the components connected to the breaker bit, avoiding the energy dissipation problem caused by gaps in the complex connection structure of traditional impact generators. This allows the impact force to be transmitted to the breaker bit more completely and efficiently, thereby significantly improving the rock-breaking effect in deep hard strata. Simultaneously, by setting a stepless speed-regulating actuating block on the upper cover plate, which is electrically connected to the actuating block, the operator can adjust the magnetic strength of the actuating block in real time according to the rock hardness, thereby changing the magnitude of the impact force. This achieves stepless adjustment of the impact force and enhances the device's adaptability to strata of different hardness.

[0018] 2. In this invention, by setting up components such as a reciprocating push rod, a return spring, and a mounting baffle, the reciprocating push rod and the actuating block are intermittently contacted, allowing the return spring to be reciprocally compressed and released. This device can convert the rotational motion of the actuating block into a continuous and stable reciprocating linear impact motion. This impact, in conjunction with the rotational torque provided by the crushing motor, effectively suppresses the stick-slip vibration phenomenon that easily occurs when the drill bit operates in hard strata, ensuring the smooth operation of the drill bit and thus improving the mechanical drilling speed. By setting up a mounting baffle to precisely guide the reciprocating push rod, the movement direction of the reciprocating push rod is ensured to be stable, avoiding deviation and jamming, and ensuring the effective transmission of impact force. The return spring promotes the reciprocating push rod to return to the left, forming a complete reciprocating motion cycle with the rightward push of the actuating block, ensuring the continuity and stability of the high-frequency impact.

[0019] 3. In this invention, by setting the connecting shaft to be directly connected to one end of the reciprocating push rod, the torsional impact generated from the actuating block can act on the connecting shaft without loss. This device can couple the impact force and rotational power at the root of the rock breaking bit, avoiding the reflection and scattering of the impact force in the long-distance transmission path, ensuring that the impact force acting on the rock is close to the theoretical value, and solving the problem of poor rock breaking effect due to energy dissipation.

[0020] 4. In this invention, by setting up a gas chip removal assembly including a connecting baffle, piston sleeve, piston rod, piston plate, air inlet pipe, air inlet check valve, air vent pipe, and air vent check valve, and connecting this assembly to a reciprocating push rod, the reciprocating motion of the impact mechanism itself drives gas compression and emission, realizing intermittent air blowing to the side of the breaker bit for chip removal. This structural design couples the reciprocating impact motion with the gas chip removal function, enabling the chip removal operation to be achieved by utilizing the kinetic energy of the impact mechanism itself, without the need for an additional independent chip removal power source. This reduces system redundancy and effectively removes rock chips by utilizing the intermittent nature of the reciprocating motion, reducing friction and wear, and maintaining the continuous and efficient rock breaking state of the drill bit. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front side view of the disassembled high-efficiency rock-breaking drill bit based on torsional impact proposed in this invention.

[0022] Figure 2 This is a top view of the disassembled structure of a high-efficiency rock-breaking drill bit based on torsional impact proposed in this invention.

[0023] Figure 3 This is a schematic diagram of the overall right-side view of a high-efficiency rock-breaking drill bit based on torsional impact proposed in this invention.

[0024] Figure 4This is a schematic diagram of the guide gear structure of a high-efficiency rock-breaking drill bit based on torsional impact proposed in this invention.

[0025] Figure 5 This is a schematic diagram of the mounting base structure of a high-efficiency rock-breaking drill bit based on torsional impact proposed in this invention.

[0026] Figure 6 This is a schematic diagram of the crushing motor structure of a high-efficiency rock-breaking drill bit based on torsional impact proposed in this invention.

[0027] Figure 7 This invention proposes a high-efficiency rock-breaking drill bit based on torsional impact. Figure 2 Enlarged structural diagram at point A in the middle;

[0028] Figure 8 This invention proposes a high-efficiency rock-breaking drill bit based on torsional impact. Figure 2 Enlarged structural diagram at point B.

[0029] In the diagram: 1. Support housing; 101. Top cover plate; 1011. Fixing bolt; 1012. Holding rod; 1013. Stepless speed regulating block; 2. Battery; 201. Charging interface; 3. Mounting base plate; 301. Servo motor; 3011. Drive gear; 3012. Connecting base; 3013. Driven gear; 3014. Actuating block; 3015. Mounting baffle; 3016. Reciprocating push rod; 30161. Electromagnetic plate; 30162. Piston rod; 3 0163, Piston Plate; 30164, Piston Spring; 3017, Return Spring; 3018, Connecting Baffle; 3019, Piston Sleeve; 3020, Inlet Pipe; 3021, Inlet Check Valve; 3022, Vent Pipe; 3023, Vent Check Valve; 4, Support Base Plate; 401, Crushing Motor; 4011, Gear Rod; 5, Connecting Shaft; 501, Guide Gear; 5011, Connecting Chuck; 5012, Adjusting Head; 5013, Crushing Drill Bit. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Example, refer to Figure 1 - Figure 8A high-efficiency rock-breaking drill bit based on torsional impact includes a support housing 1. A mounting base 3 is fixedly connected inside the support housing 1. A servo motor 301 is fixedly connected to one side of the mounting base 3. A drive gear 3011 is mounted on the output shaft of the servo motor 301. A connecting base 3012 is fixedly connected to the inner side of the support housing 1. A driven gear 3013 is rotatably connected inside the connecting base 3012. The driven gear 3013 meshes with the drive gear 3011 for transmission. The top end of the driven gear 3013 is coaxially mounted... The support housing 1 is equipped with a toggle block 3014; a top cover plate 101 is installed on the top of the support housing 1, and a stepless speed regulating toggle block 1013 is installed on the top cover plate 101. The stepless speed regulating toggle block 1013 is electrically connected to the toggle block 3014 and is used to adjust the magnetic strength of the toggle block 3014; a mounting baffle 3015 is fixedly connected to the top of the connecting base 3012, and a reciprocating push rod 3016 is inserted inside the mounting baffle 3015. The mounting baffle 3015 is used to guide the reciprocating motion of the reciprocating push rod 3016; the reciprocating push rod 3016... A return spring 3017 is fixedly connected to one side, which is used to promote the reciprocating push rod 3016 to return to the left. One end of the reciprocating push rod 3016 is connected to the rock-breaking drill bit 5013. The actuating block 3014 is used to intermittently push the reciprocating push rod 3016 to achieve torsional impact on the rock-breaking drill bit 5013. An electromagnetic plate 30161 is fixedly connected to the side of the reciprocating push rod 3016 near the actuating block 3014. The actuating block 3014 is an electromagnetic structure. When the electromagnetic plate 30161 is in a state of being close to the electromagnetic plate 30161, the electromagnetic plate 30161 is in a state of being pushed by magnetism to move to the far end. A connecting baffle 3018 is fixedly connected to one side of the reciprocating push rod 3016, and a piston sleeve 3019 is fixedly connected to one end of the connecting baffle 3018. A piston rod 30162 is installed inside the piston sleeve 3019. The piston rod 30162 is connected to the electromagnetic plate 30161, and a piston plate 30163 for compressing the gas inside the piston sleeve 3019 is fixedly connected to one end of the piston rod 30162.

[0032] Furthermore, a piston spring 30164 is fixedly connected between the piston plate 30163 and the piston sleeve 3019. The piston spring 30164 is used to push the electromagnetic plate 30161 back to the side of the actuating block 3014. One end of the piston sleeve 3019 is fixedly connected to an air inlet pipe 3020 extending out of the support housing 1. An air inlet check valve 3021 is installed on the outside of the air inlet pipe 3020. The other end of the piston sleeve 3019 is fixedly connected to a vent pipe 3022. A vent check valve 3023 is fixedly connected on the outside of the vent pipe 3022. The air outlet end of the vent pipe 3022 extends outward out of the support housing 1 and is used to blow air to one side of the breaker drill bit 5013 to remove chips. The upper cover plate 101 has a mounting hole inside, and a fixed... A bolt 1011 is attached to the outer wall of the support housing 1, and a gripping rod 1012 is fixedly connected to it. There are two gripping rods 1012, which are symmetrically fixed on the front and rear sides of the outer wall of the support housing 1. A battery 2 is fixedly connected to the inner side of the support housing 1. A charging interface 201 is fixedly connected to one end of the battery 2. The charging interface 201 extends outward from the support housing 1. A support base plate 4 is fixedly connected to the inner side of the support housing 1. A crushing motor 401 is fixedly connected to one side of the support base plate 4. A gear rod 4011 is installed on the output shaft of the crushing motor 401. A connecting shaft 5 is rotatably connected to the inner side of the support base plate 4. A guide gear 501 is fixedly connected to the outer wall of the connecting shaft 5. The guide gear 501 meshes with the gear rod 4011 for transmission.

[0033] Furthermore, a connecting chuck 5011 is fixedly connected to the outer side of the connecting shaft 5. An adjusting head 5012 is fixedly connected to the side of the connecting chuck 5011 away from the connecting shaft 5. A breaking drill bit 5013 is clamped and limited on the inner side of the adjusting head 5012. The breaking drill bit 5013 is used to break rocks. One end of the reciprocating push rod 3016 is connected to the connecting shaft 5. When the actuating block 3014 is in the state of moving the reciprocating push rod 3016 to the right, the reciprocating push rod 3016 is in the state of pushing the breaking drill bit 5013 to reciprocate.

[0034] In use, the operator holds the entire device stably using the grip lever 1012 and applies appropriate thrust to bring the crushing drill bit 5013 into contact with the rock surface to be crushed. The crushing motor 401 is then started, and its output shaft begins to rotate, driving the gear rod 4011, which is fixedly mounted on its output shaft, to rotate synchronously. The outer wall of the gear rod 4011 is machined with helical teeth, which mesh with the outer tooth profile of the guide gear 501. Therefore, when the gear rod 4011 rotates, through the meshing transmission, it drives the guide gear 501 to rotate around its own axis. 1. Fixedly sleeved on the outer wall of the connecting shaft 5, so the rotation of the guide gear 501 will drive the connecting shaft 5 to rotate together. The end of the connecting shaft 5 is fixedly connected to the connecting chuck 5011. The connecting chuck 5011 is equipped with an adjusting head 5012. The inner side of the adjusting head 5012 clamps and limits the fixing of the crushing drill bit 5013. Therefore, the rotation of the connecting shaft 5 will transmit the torque to the crushing drill bit 5013 through the connecting chuck 5011 and the adjusting head 5012, so that the crushing drill bit 5013 rotates at high speed and uses the rotational cutting force to perform preliminary crushing and grinding operations on the rock surface.

[0035] While performing the aforementioned rotary crushing operation, the servo motor 301 is started, and its output shaft begins to rotate, driving the drive gear 3011, which is fixedly mounted on its output shaft, to rotate synchronously. The outer tooth profile of the drive gear 3011 meshes with the outer tooth profile of the driven gear 3013. Therefore, the rotation of the drive gear 3011 drives the driven gear 3013 to rotate around its own axis inside the connecting base 3012 through meshing transmission. The top of the driven gear 3013 is coaxially fixedly mounted with... The actuating block 3014 has a block-shaped structure with protrusions. Therefore, the rotation of the driven gear 3013 will drive the actuating block 3014 to rotate synchronously around the same axis. A stepless speed regulating block 1013 is installed on the upper cover plate 101. The stepless speed regulating block 1013 is electrically connected to the actuating block 3014. The operator can adjust the magnetic strength of the actuating block 3014 by adjusting the stepless speed regulating block 1013, thereby adjusting the magnitude of the subsequent impact force to adapt to rock conditions of different hardness.

[0036] A mounting baffle 3015 is fixedly connected to the top of the connecting base 3012. The mounting baffle 3015 has a guide hole inside. The reciprocating push rod 3016 has a cylindrical structure and is inserted into the guide hole of the mounting baffle 3015, allowing it to slide reciprocally along the axis of the guide hole. The mounting baffle 3015 provides precise linear guidance for the reciprocating push rod 3016, ensuring stable movement and preventing skewing or jamming. One end of the reciprocating push rod 3016 is connected to the side wall of the connecting shaft 5, and the other end is connected to the actuating block. The outer peripheral edge of 3014 is in contact with the corresponding position. When the actuating block 3014 rotates with the driven gear 3013, the protrusion on the actuating block 3014 will periodically move to a position close to the reciprocating push rod 3016. In each cycle of the rotation of the actuating block 3014, when the protrusion rotates to a position in contact with the reciprocating push rod 3016, the protrusion will abut against the end of the reciprocating push rod 3016 and push the reciprocating push rod 3016 to slide away from the actuating block 3014 along the guide through hole of the mounting baffle 3015, that is, to slide towards the direction (right side) closer to the breaker drill bit 5013.

[0037] A return spring 3017 is fixedly connected to one side of the reciprocating push rod 3016, and the other end of the return spring 3017 is fixedly connected to the mounting baffle 3015. The return spring 3017 is used to promote the reciprocating push rod 3016 to return to the left. Therefore, during the process of the reciprocating push rod 3016 being pushed to the right by the actuating block 3014, the reciprocating push rod 3016 will stretch the return spring 3017, causing the return spring 3017 to store elastic potential energy. As the actuating block 3014 continues to rotate, when the protrusion on the actuating block 3014 passes the end position of the reciprocating push rod 3016, the protrusion disengages from the reciprocating push rod 3016. At this time, the reciprocating push rod 3016 is no longer subjected to the pushing force of the actuating block 3014. The elastic potential energy stored in the return spring 3017 begins to release. The elastic force of the return spring 3017 pulls the reciprocating push rod 3016 to slide to the left along the guide hole of the mounting baffle 3015, returning the reciprocating push rod 3016 to its initial position. Driven by the servo motor 301, the actuating block 3014 continuously rotates at high speed. Therefore, the protrusion of the actuating block 3014 periodically contacts and disengages from the reciprocating push rod 3016, causing the reciprocating push rod 3016 to perform continuous high-speed reciprocating linear motion within the guide hole of the mounting baffle 3015 under the action of the return spring 3017. Since one end of the reciprocating push rod 3016 is connected to the connecting shaft 5, the reciprocating push rod 3016... During high-speed reciprocating linear motion, the resulting reciprocating impact force is directly transmitted to the connecting shaft 5. The direction of this impact force is along the axis of the connecting shaft 5 or at a certain angle to the axis, depending on the connection method and position of the reciprocating push rod 3016 and the connecting shaft 5. The connecting shaft 5 simultaneously bears the continuous rotational torque transmitted from the crushing motor 401 through the gear rod 4011 and the guide gear 501, as well as the high-frequency reciprocating impact force transmitted from the reciprocating push rod 3016. These two types of forces are superimposed and coupled on the connecting shaft 5, acting together on the crushing drill bit 5013 at the end of the connecting shaft 5. Under the combined action of the coupled rotational torque and high-frequency impact force, the crushing drill bit 5013 acts on the rock. The rotational torque causes the cutting teeth of the breaker bit 5013 to continuously shear the rock, while the high-frequency impact force causes the breaker bit 5013 to produce an instantaneous impact crushing effect on the rock. This combined rotation and impact action allows the breaker bit 5013 to more effectively crush high-hardness rocks. When the rock hardness suddenly increases or becomes uneven in some areas, the load on the breaker motor 401 will increase, which may cause fluctuations in the rotation speed of the connecting shaft 5. At this time, the impact mechanism driven by the independent servo motor 301 can still stably provide high-frequency impact. This high-frequency impact helps the breaker bit 5013 to quickly crush high-hardness points, avoids drill bit jamming, and thus suppresses the generation and development of stick-slip vibration.

[0038] During the reciprocating motion of the reciprocating push rod 3016, a connecting baffle 3018 is fixedly connected to one side of the reciprocating push rod 3016, and a piston sleeve 3019 is fixedly connected to one end of the connecting baffle 3018. A piston rod 30162 is installed inside the piston sleeve 3019, and the piston rod 30162 is connected to the electromagnetic plate 30161. A piston plate 30163 is fixedly connected to one end of the piston rod 30162. Therefore, when the reciprocating push rod 3016 reciprocates, it drives the piston sleeve 3019 to move through the connecting baffle 3018, thus coordinating with... The relative movement of piston rod 30162 and piston plate 30163 compresses the gas inside piston sleeve 3019. The compressed gas is discharged outward through vent pipe 3022 and vent check valve 3023 and blown towards one side of the breaker bit 5013 to achieve the chip removal function. The air inlet pipe 3020 and air inlet check valve 3021 are used to draw in external gas when the piston returns to its original position to prepare for the next compression. This gas chip removal process is driven by the reciprocating motion of the impact mechanism itself, without the need for an additional power source, thus realizing the structural coupling of impact motion and chip removal function.

[0039] The operator controls the forward direction and thrust of the device by gripping lever 1012, causing the breaker drill bit 5013 to continuously drill deeper into the rock. Throughout the drilling process, the battery 2 is pre-charged through charging interface 201, providing a stable power supply to the servo motor 301 and the breaker motor 401. The upper cover plate 101 is fixedly installed on the top of the support housing 1 by fixing bolts 1011, forming a closed protective structure to prevent dust and rock debris from entering the device and protecting the internal mounting base 3, servo motor 301, and connecting base. Precision components such as 3012, driven gear 3013, actuating block 3014, mounting baffle 3015, reciprocating push rod 3016, return spring 3017, support base 4, crushing motor 401, gear rod 4011, connecting shaft 5, and guide gear 501 are included. The connecting base 3012 provides stable rotational support for the driven gear 3013, ensuring its smooth rotation. The mounting baffle 3015 provides precise guidance for the reciprocating push rod 3016, ensuring it moves along a set path. The reciprocating motion is linear and avoids deviation or jamming. The elastic coefficient of the return spring 3017 is matched to ensure that the reciprocating push rod 3016 quickly returns to the left after the actuating block 3014 disengages, so as to accept the next push and ensure the continuity and stability of high-frequency impact. The support base plate 4 provides a solid mounting foundation for the crushing motor 401 and also provides rotational support for the connecting shaft 5, ensuring that the connecting shaft 5 can rotate smoothly. The meshing transmission between the guide gear 501 and the gear rod 4011 drives the crushing motor... The rotational power of 401 is efficiently transmitted to the connecting shaft 5. The structural design of the connecting chuck 5011 and adjusting head 5012 allows the crushing drill bit 5013 to be firmly clamped. At the same time, it is convenient to replace the crushing drill bit 5013 of different specifications according to different rock types. When the crushing drill bit 5013 is worn, the operator can loosen the adjusting head 5012, replace the new crushing drill bit 5013, and then re-clamp and fix it. During the operation of the entire device, the various components work together to form a complete high-efficiency rock breaking system based on torsional impact.

[0040] The impact generating mechanism, independently driven by the servo motor 301, consists of a drive gear 3011, a driven gear 3013, a toggle block 3014, a reciprocating push rod 3016, and a return spring 3017. This mechanism generates a stable and controllable high-frequency impact force. The operator can adjust the magnetic strength of the toggle block 3014 via the stepless speed-regulating toggle block 1013, thereby changing the magnetic thrust on the electromagnetic plate 30161 and achieving stepless adjustment of the impact force to meet the rock-breaking requirements of rocks of varying hardness. This impact force acts directly on the connecting shaft 5 and perfectly integrates with the rotational torque generated by the crushing motor 401 at the crushing drill bit 5013. This method of force coupling at the drill bit root... By minimizing energy loss in the transmission path of the impact force and ensuring that the impact force acts on the rock surface with maximum amplitude, when the actuating block 3014 pushes the reciprocating push rod 3016 to move, the reciprocating push rod 3016 applies an impact force to the connecting shaft 5. This impact force causes the breaker bit 5013 to generate a small axial or radial displacement while rotating. This small displacement change allows the cutting teeth of the breaker bit 5013 to cut into the fresh surface of the rock, thereby improving rock breaking efficiency. At the same time, the stress wave generated by the high-frequency impact propagates inside the rock, causing microcracks inside the rock and reducing the overall strength of the rock, making subsequent rotary cutting easier. As the drilling depth increases... As the impact force increases, the resistance borne by the breaker bit 5013 will increase accordingly. However, due to the continuous impact force, the breaker bit 5013 can always maintain a good rock-breaking state. The operator can stably control the device through two symmetrically arranged gripping rods 1012 to counteract the reaction force generated by the rotation and impact of the breaker bit 5013, ensuring the accuracy of the drilling direction. The entire drilling process can be carried out continuously without frequent stops to deal with stuck drills or stick-slip vibration problems, which greatly improves the work efficiency. When the battery 2 is low on power, it can be charged by connecting an external power source through the charging interface 201 to ensure that the device can continue to work. When the device stops working, first turn off the servo motor 301, and then turn off the drive gear. When wheel 3011 stops rotating, driven gear 3013 and actuating block 3014 also stop rotating. Reciprocating push rod 3016 stops at its initial position under the action of return spring 3017, and the impact stops. Then, crushing motor 401 is turned off, causing gear rod 4011 to stop rotating. Guide gear 501, connecting shaft 5 and crushing drill bit 5013 also stop rotating. The operator removes the device from the borehole and cleans the rock chips attached to crushing drill bit 5013 and the outer wall of support housing 1 for the next use. The entire device has a compact structure and reasonable layout of components. Servo motor 301 and crushing motor 401 are driven independently and do not interfere with each other, ensuring the reliability and stability of the operation.

[0041] Through the meshing transmission of the drive gear 3011 and the driven gear 3013, smooth power transmission and reasonable speed matching are achieved. The intermittent contact between the actuating block 3014 and the reciprocating push rod 3016, combined with the energy release function of the return spring 3017, efficiently converts rotational motion into reciprocating impact motion. The precise guidance of the reciprocating push rod 3016 by the mounting baffle 3015 ensures the stability of the impact direction and the effective transmission of impact force. The return spring 3017 promotes the reciprocating push rod 3016 to return to the left, forming a complete reciprocating motion cycle with the rightward push of the actuating block 3014. The stepless speed-regulating actuating block 1013 adjusts the magnetic strength of the actuating block 3014, achieving stepless adjustment of the impact force and enhancing the device's adaptability to rocks of different hardness. The reciprocating push rod 3016 drives the piston sleeve 3019 and other gas debris removal components, utilizing the impact machine... The reciprocating motion of the structure drives the chip removal function, realizing the structural coupling of impact motion and chip removal function. Rock chips can be removed simultaneously during impact rock breaking without an additional power source, reducing system redundancy, reducing friction and wear, and maintaining the continuous and efficient rock breaking state of the drill bit. The direct connection between the reciprocating push rod 3016 and the connecting shaft 5 realizes the lossless transmission of impact force. The clamping structure of the connecting chuck 5011 and the adjusting head 5012 realizes the quick replacement and firm fixation of the breaking drill bit 5013. The power supply of the battery 2 realizes the cableless operation of the device, improving the convenience and flexibility of use. The sealing structure of the upper cover plate 101 and the fixing bolt 1011 realizes the effective protection of the internal precision components and extends the service life of the device. The symmetrical arrangement of the grip rod 1012 realizes the humanized and stable operation and reduces the labor intensity of the operator.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency rock-breaking drill bit based on torsional impact, comprising a support shell (1), characterized in that, A mounting base (3) is fixedly connected inside the support housing (1). A servo motor (301) is fixedly connected to one side of the mounting base (3). A drive gear (3011) is mounted on the output shaft of the servo motor (301). A connecting base (3012) is fixedly connected to the inside of the support housing (1). A driven gear (3013) is rotatably connected inside the connecting base (3012). The driven gear (3013) meshes with the drive gear (3011) for transmission. A toggle block (3013) is coaxially mounted on the top of the driven gear (3013). 14); A top cover plate (101) is installed on the top of the support housing (1), and a stepless speed regulating block (1013) is installed on the top cover plate (101). The stepless speed regulating block (1013) is electrically connected to the actuating block (3014) and is used to adjust the magnetic strength of the actuating block (3014); A mounting baffle (3015) is fixedly connected to the top of the connecting base (3012), and a reciprocating push rod (3016) is inserted inside the mounting baffle (3015). The mounting baffle (3015) is used to guide the reciprocating motion of the reciprocating push rod (3016);A return spring (3017) is fixedly connected to one side of the reciprocating push rod (3016). The return spring (3017) is used to promote the reciprocating push rod (3016) to return to the left. One end of the reciprocating push rod (3016) is connected to the rock-breaking drill bit (5013). The actuating block (3014) is used to intermittently push the reciprocating push rod (3016) to achieve torsional impact on the rock-breaking drill bit (5013). The reciprocating push rod (3016) near the actuating block (3014) is... An electromagnetic plate (30161) is fixedly connected to one side of the reciprocating push rod (3016). The actuating block (3014) is an electromagnetic structure. When the actuating block (3014) is close to the electromagnetic plate (30161), the electromagnetic plate (30161) is in a state of being magnetically pushed to move to the far end. A connecting baffle (3018) is fixedly connected to one side of the reciprocating push rod (3016). A piston sleeve (3019) is fixedly connected to one end of the connecting baffle (3018). A piston rod is installed inside the piston sleeve (3019). (30162), the piston rod (30162) is connected to the electromagnetic plate (30161), and one end of the piston rod (30162) is fixedly connected to a piston plate (30163) for compressing the gas inside the piston sleeve (3019). A piston spring (30164) is fixedly connected between the piston plate (30163) and the piston sleeve (3019). The piston spring (30164) is used to push the electromagnetic plate (30161) to reset to the side of the actuating block (3014). The piston sleeve ( One end of the piston sleeve (3019) is fixedly connected to an air inlet pipe (3020) extending out of the support housing (1). An air inlet check valve (3021) is installed on the outside of the air inlet pipe (3020). The other end of the piston sleeve (3019) is fixedly connected to a vent pipe (3022). A vent check valve (3023) is fixedly connected to the outside of the vent pipe (3022). The outlet end of the vent pipe (3022) extends outward out of the support housing (1) and is used to blow air to one side of the breaker bit (5013) to remove chips.

2. The high-efficiency rock-breaking drill bit based on torsional impact according to claim 1, characterized in that, The upper cover plate (101) has an installation hole inside, and a fixing bolt (1011) is installed inside the installation hole. A gripping rod (1012) is fixedly connected to the outer wall of the support housing (1). There are two gripping rods (1012), and the two gripping rods (1012) are symmetrically fixed on the front and rear sides of the outer wall of the support housing (1).

3. The high-efficiency rock-breaking drill bit based on torsional impact according to claim 1, characterized in that, A battery (2) is fixedly connected to the inner side of the support housing (1), and a charging interface (201) is fixedly connected to one end of the battery (2). The charging interface (201) extends outward from the support housing (1).

4. The high-efficiency rock-breaking drill bit based on torsional impact according to claim 1, characterized in that, A support base plate (4) is fixedly connected to the inner side of the support housing (1). A crushing motor (401) is fixedly connected to one side of the support base plate (4). A gear rod (4011) is installed on the output shaft of the crushing motor (401). A connecting shaft (5) is rotatably connected to the inner side of the support base plate (4). A guide gear (501) is fixedly connected to the outer wall of the connecting shaft (5). The guide gear (501) meshes with the gear rod (4011) for transmission.

5. A high-efficiency rock-breaking drill bit based on torsional impact according to claim 4, characterized in that, A connecting chuck (5011) is fixedly connected to the outside of the connecting shaft (5). An adjusting head (5012) is fixedly connected to the side of the connecting chuck (5011) away from the connecting shaft (5). A breaking drill bit (5013) is clamped and limited on the inside of the adjusting head (5012). The breaking drill bit (5013) is used to break rocks.

6. The high-efficiency rock-breaking drill bit based on torsional impact according to claim 1, characterized in that, One end of the reciprocating push rod (3016) is connected to the connecting shaft (5). When the actuating block (3014) is in the state of actuating the reciprocating push rod (3016) to the right, the reciprocating push rod (3016) is in the state of pushing the breaker drill bit (5013) to reciprocate.

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