Screw drilling tool with variable torque structure

Abstract

The invention discloses a screw drill with a variable torque structure, and relates to the technical field of well drilling, the screw drill comprises a supporting plate, the bottom of the supporting plate is fixedly connected with a supporting mechanism, the top of the supporting plate is fixedly connected with a heat dissipation mechanism, one side of the heat dissipation mechanism is fixedly connected with a ground breaking mechanism, and the other side of the heat dissipation mechanism is fixedly connected with the ground breaking mechanism. Firstly, the whole device vibrates in the working process, a supporting plate vibrates, then a supporting rod is driven to move downwards in the vertical plane based on a compression spring and a sliding shaft, the compression spring is extruded, the influence generated by vibration is reduced, and then moving wheels at the bottom of a moving plate can drive the whole device to move. The air cylinder is started to drive the telescopic shaft to stretch out and draw back so as to drive the telescopic frame and the motor above the telescopic frame to move up and down, the drilling shaft can be further driven to move up and down, and deep soil breaking treatment is conducted on soil.

Description

Technical Field

[0001] The invention relates to the technical field of drilling, and in particular to a screw drilling tool with a variable torque structure. Background Art

[0002] When exploiting crude oil, natural gas or underground mineral deposits buried deep in the strata, mechanical equipment must first be used to drill the strata into cylindrical holes of a certain depth. This step is drilling in oil extraction operations. A commonly used drilling method is rotary drilling, which uses the cutting or grinding action generated by the rotation of the drill bit to break the rock. The screw drill is a volumetric downhole power drill that uses drilling fluid as a power source to convert liquid pressure energy into mechanical energy. The screw drill is connected to the drill bit to increase the drilling speed of the drill bit. The commonly used screw drill is a downhole power drill driven by the hydraulic energy of the drilling fluid. It has the function of increasing the rotation speed of the drill bit and thereby improving the drilling efficiency. It also has the function of drilling directional, horizontal and other inclined well sections. Moreover, it has low manufacturing and use costs, high safety and reliability, and has been widely used for many years.

[0003] There are still some problems with existing screw drills. Most of the drills have a single kinetic energy, and the drilling pressure is unstable during the drilling process. If the drilling pressure is too high, the motor output torque will exceed the pressure it bears, causing damage to the equipment. Therefore, it is necessary to design a screw drill with a variable torque structure. At the same time, problems such as heat dissipation and corrosion cannot be solved during the rotation speed process. The friction and power consumption generated by the screw drill will cause the equipment to heat up, and an effective heat dissipation system is needed to reduce the temperature. If the heat dissipation is insufficient, the drilling efficiency and equipment life will be affected. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a screw drill with a variable torque structure, comprising a support plate, a support mechanism is fixedly connected to the bottom of the support plate, a heat dissipation mechanism is fixedly connected to the top of the support plate, and a soil breaking mechanism is fixedly connected to one side of the heat dissipation mechanism; Furthermore, the support mechanism includes a support rod, a sliding shaft is slidably connected to the bottom of the support rod, a compression spring is fixedly connected to the bottom of the support rod, a moving plate is fixedly connected to one end of the sliding shaft away from the support rod, moving wheels are rotatably connected to both sides of the moving plate through a rotating shaft, a support frame is fixedly connected to one side of the support plate, a cylinder is fixedly connected to the top of the support frame, a telescopic shaft is fixedly connected to the output end of the cylinder, and a telescopic frame is penetrated and fixedly connected to the end of the telescopic shaft away from the cylinder. The support mechanism facilitates the overall device to play a stable supporting effect during work, and the support device is also easy to move.

[0005] Furthermore, the top of the support rod is fixedly connected to the bottom of the support plate, and the support rods are provided in multiple groups.

[0006] Furthermore, the heat dissipation mechanism includes a water storage frame, a circular heat sink is fixedly connected to the top of one side of the water storage frame, a fixing rod is fixedly connected to the top of the circular heat sink, a support sleeve is fixedly connected to the end of the fixing rod away from the circular heat sink, a wind-following shaft is rotatably connected to the inner wall of the support sleeve, a wind-following blade is penetrated and fixedly connected to the end of the wind-following shaft away from the support sleeve, a stirring rod is fixedly connected to the bottom of the wind-following blade, a stirring ball is fixedly connected to the end of the stirring rod away from the wind-following blade, a filter plate is fixedly connected to one side of the water storage frame through a through hole, and a squeeze plate is fixedly connected to the top of the filter plate through a spring. The heat dissipation mechanism can utilize wind energy to drive the wind-following blade to rotate and then drive the stirring rod and the stirring ball to stir the water flow inside the water storage frame to increase the heat dissipation effect of the heat dissipation plate on the motor.

[0007] Furthermore, the bottom of the water storage frame is fixedly connected to the top of the telescopic frame, the fixing rod, stirring rod, and filter plate are provided in multiple groups, the stirring ball and the extrusion plate are made of magnetic material, and one side of the extrusion plate is slidably connected to the water storage frame.

[0008] Furthermore, the heat dissipation mechanism also includes an extrusion component, the extrusion component includes a connecting pipe, the bottom of the connecting pipe is connected to an annular tube, one side of the annular tube is fixedly connected to a connecting frame, one side of the bottom of the annular tube is connected to a water spray pipe, the top edge of the support plate is fixedly connected to an arc rod, one side of the arc rod is slidably connected to an extrusion rod, one end of the extrusion rod is fixedly connected to an air bag, one end of the air bag away from the extrusion rod is fixedly connected to a heat collecting plate, the bottom of the heat collecting plate is fixedly connected to one side of the arc rod through a rubber rod 1, and one side of the arc rod is fixedly connected to one side of the extrusion rod through a rubber rod 2. The extrusion component works by the heat collecting plate in the extrusion component extruding the air bag to drive the movement of the arc rod, and the water flow in the extrusion annular tube is further sprayed on the rotating shaft below to cool it down.

[0009] Furthermore, the connecting pipe is connected to the water storage frame at one end away from the annular pipe, and multiple groups of connecting pipes, connecting frames, water spray pipes, and arc rods are provided, and the bottom of the connecting frame is fixedly connected to the top of the support plate.

[0010] Furthermore, the soil-breaking mechanism includes a motor, the output end of the motor is fixedly connected to a drill shaft, one side of the drill shaft is respectively fixedly connected to a spiral blade and a rotating blade, one side of the spiral blade is rotatably connected to a conveying cylinder, the outer side of the drill shaft is fixedly connected to the inner wall of a pressure sensor, the bottom of the water storage frame is fixedly connected to a vibration spring, the end of the vibration spring away from the water storage frame is fixedly connected to a shockproof plate, and the outer wall of the conveying cylinder is fixedly connected to an auxiliary frame. The soil-breaking mechanism can be used to break the soil using the drill shaft and the rotating blade.

[0011] Furthermore, the earth-breaking mechanism also includes an anti-corrosion component, which includes a bent rod, an anti-corrosion box is fixedly connected to the side of the support rod close to the conveying cylinder, an anti-corrosion plate is slidably connected to the inner wall of the anti-corrosion box, a bent rod is fixedly connected to the top of the anti-corrosion plate, a magnetic block 1 is fixedly connected to the top of the bent rod, a limiting rod is slidably connected to one side of the bent rod, a nozzle is connected to the bottom of the anti-corrosion box, and a magnetic block 2 is fixedly connected to one side of the drill shaft through the bent rod. The anti-corrosion component can be used to drive the ejection of the anti-corrosion liquid by the rotation of the drill shaft, which is beneficial to the anti-corrosion of the device.

[0012] Furthermore, the bottom of the motor is fixedly connected to one side of the water storage frame, the end of the drill shaft away from the motor passes through the water storage frame and is rotatably connected thereto, one side of the conveying cylinder is fixedly connected to the bottom of the support plate through a connecting rod, the bottom of the shockproof plate is fixedly connected to the top of the connecting frame, the bent rods and anti-corrosion boxes are arranged in multiple groups, one side of the limit rod is fixedly connected to the support rod, and the side of the anti-corrosion plate close to the anti-corrosion box is fixedly connected to the inner wall of the anti-corrosion box through a rubber rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) This screw drill with a variable torque structure, first of all, the whole device will vibrate during operation, the support plate will vibrate, and then drive the support rod to move downward in the vertical plane based on the compression spring and the sliding shaft, and squeeze the compression spring to reduce the impact of vibration, and then the moving wheel at the bottom of the moving plate can drive the movement of the whole device. The starting cylinder can drive the telescopic shaft to extend and retract, and then drive the telescopic frame and the motor above the telescopic frame to move up and down, which can further drive the drill shaft to move up and down to perform deep soil breaking treatment.

[0014] (2) In the screw drill with a variable torque structure, the motor will emit a large amount of heat during operation. Before that, the water storage frame is filled with water. The wind can drive the rotation of the wind blades and further drive the rotation of the stirring rod and the stirring ball, which can evenly stir the water flow inside the water storage frame, drive the flow area of ​​the water flow and the heat sink to increase, and achieve heat dissipation effect on the motor through the heat sink. During the rotation of the stirring ball, the stirring ball and the extrusion plate are both made of magnetic materials. When the stirring ball moves above the extrusion plate, it will generate a repulsive force on the extrusion plate and push the extrusion plate to move downward based on the spring. When the extrusion plate moves downward, it will squeeze the water inside the water storage frame. The squeezed water part passes through the filter plate and the connecting pipe into the annular pipe. The pressure inside the annular pipe tends to be balanced, that is, the squeezed water flows upward from other connecting pipes into the water storage frame to complete the backflow. Further achieve the effect of water flow.

[0015] (3) The screw drill with a variable torque structure will be affected when the temperature is too high in the hot summer. Therefore, when one side of the heat collecting plate absorbs enough heat, it will transfer the heat to the airbag. The expansion of the airbag due to heat will push the extrusion rod to slide downward along one side of the arc rod. The extrusion rod squeezes the annular tube. The annular tube and the water spray pipe port are provided with a pressure valve. The valve will only open when there is a certain pressure. Through the squeezing of the extrusion rod, the internal pressure of the annular tube is too high, and water is sprayed downward through the water spray pipe, spraying the water into the auxiliary frame below, and flowing to the drill bit through the small holes opened on the auxiliary frame, cooling the spiral blade and the rotating blade.

[0016] (4) This screw drill with a variable torque structure drives the drill shaft and the rotation of the rotating blade and spiral blade by starting the motor. The rotation effect of the rotating blade can be used to better break the soil. The rotation of the spiral blade can continuously bring the broken soil up along the conveying tube. The pressure sensor senses the speed of the drill shaft and then transmits the signal to the controller to control the speed of the motor, so as to adjust the torque of the screw drill. Secondly, when the cylinder drives the telescopic shaft to extend and retract, the depth of the drill shaft can be controlled, and the shockproof plate and vibration spring have a further shock-absorbing effect.

[0017] (5) The screw drill with a variable torque structure can drive the rotation of the bent rod and the second magnetic block when the drill shaft rotates. When the second magnetic block moves to the top of the anti-corrosion box, it will repel the first magnetic block above the anti-corrosion box. The repulsive force pushes the first magnetic block and the bent rod to move downward under the limit of the limit rod, pushing the anti-corrosion plate to move inward along the inside of the anti-corrosion box, squeezing the anti-corrosion liquid inside the anti-corrosion box. The squeezed anti-corrosion liquid is sprayed out through the nozzle and sprayed into the auxiliary frame. The moisture in the auxiliary frame is fused with the preservative, which can further enhance the anti-corrosion effect of the anti-corrosion liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a screw drill with a variable torque structure based on the present invention; Figure 2 It is a schematic diagram of the overall component structure of the present invention; Figure 3 It is a schematic diagram of the supporting mechanism structure of the present invention; Figure 4 It is a schematic diagram of the heat dissipation mechanism structure of the present invention; Figure 5 It is a partial structural schematic diagram of the heat dissipation mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the extruded component of the present invention; Figure 7 This is a schematic diagram of the structure of the earth-breaking mechanism of the present invention; Figure 8 It is a partial structural schematic diagram of the earth-breaking mechanism of the present invention; Fig. 9 It is a schematic diagram of the structure of the anti-corrosion component of the present invention.

[0019] In the figure: 1, support plate; 2, support mechanism; 201, support rod; 202, sliding shaft; 203, compression spring; 204, moving plate; 205, moving wheel; 206, support frame; 207, cylinder; 208, telescopic shaft; 209, telescopic frame; 3, heat dissipation mechanism; 301, water storage frame; 302, annular heat dissipation plate; 303, fixing rod; 304, support sleeve; 305, wind-following shaft; 306, wind-following blade; 307, stirring rod; 308, stirring ball; 309, filter plate; 310, extrusion plate; 311, extrusion component; 312, connecting pipe; 313, annular Tube; 314, connecting frame; 315, water spray pipe; 316, arc rod; 317, extrusion rod; 318, air bag; 319, heat collecting plate; 4, earth-breaking mechanism; 401, motor; 402, drill shaft; 403, spiral blade; 404, rotating blade; 405, conveying cylinder; 406, pressure sensor; 407, vibration spring; 408, shockproof plate; 409, auxiliary frame; 410, anti-corrosion component; 411, bent rod; 412, anti-corrosion box; 413, anti-corrosion plate; 414, bent rod; 415, magnetic block one; 416, limit rod; 417, nozzle; 418, magnetic block two. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] For the first embodiment, please refer to Figure 1-Figure 9 The present invention is a screw drill with a variable torque structure, comprising a support plate 1, a support mechanism 2 is fixedly connected to the bottom of the support plate 1, a heat dissipation mechanism 3 is fixedly connected to the top of the support plate 1, and a ground-breaking mechanism 4 is fixedly connected to one side of the heat dissipation mechanism 3; The supporting mechanism 2 includes a supporting rod 201, a sliding shaft 202 is slidably connected to the bottom of the supporting rod 201, a compression spring 203 is fixedly connected to the bottom of the supporting rod 201, a moving plate 204 is fixedly connected to the end of the sliding shaft 202 away from the supporting rod 201, and moving wheels 205 are rotatably connected to the moving plate 204 on both sides through a rotating shaft, a supporting frame 206 is fixedly connected to one side of the supporting plate 1, a cylinder 207 is fixedly connected to the top of the supporting frame 206, a telescopic shaft 208 is fixedly connected to the output end of the cylinder 207, and a telescopic frame 209 is penetrated and fixedly connected to the end of the telescopic shaft 208 away from the cylinder 207.

[0022] When in use, firstly, the whole device will vibrate during operation, the support plate 1 will vibrate, and then drive the support rod 201 to move downward in the vertical plane based on the compression spring 203 and the sliding shaft 202, and squeeze the compression spring 203 to reduce the impact of the vibration, and then the moving wheel 205 at the bottom of the moving plate 204 can drive the movement of the whole device. The starting cylinder 207 can drive the telescopic shaft 208 to extend and retract, thereby driving the telescopic frame 209 and the motor 401 above the telescopic frame 209 to move up and down, and can further drive the drilling shaft 402 to move up and down, and perform deep soil breaking treatment on the soil.

[0023] The top of the support rod 201 is fixedly connected to the bottom of the support plate 1 , and the support rods 201 are provided in multiple groups.

[0024] For the second embodiment, please refer to Figure 4-Figure 6 The present invention is a screw drill with a variable torque structure. The heat dissipation mechanism 3 includes a water storage frame 301. An annular heat dissipation plate 302 is fixedly connected to the top of one side of the water storage frame 301. A fixing rod 303 is fixedly connected to the top of the annular heat dissipation plate 302. The fixing rod 303 is fixedly connected to a support sleeve 304 at one end away from the annular heat dissipation plate 302. A wind-following shaft 305 is rotatably connected to the inner wall of the support sleeve 304. A wind-following blade 306 is penetrated and fixedly connected to the wind-following shaft 305 at one end away from the support sleeve 304. A stirring rod 307 is fixedly connected to the bottom of the wind-following blade 306. A stirring ball 308 is fixedly connected to the end of the stirring rod 307 away from the wind-following blade 306. A filter plate 309 is fixedly connected to one side of the water storage frame 301 through a through hole. A pressing plate 310 is fixedly connected to the top of the filter plate 309 through a spring.

[0025] When in use, when the device is running, the motor 401 will emit a large amount of heat. Before this, the water storage frame 301 is full of water. The wind can drive the rotation of the wind blades 306 and further drive the rotation of the stirring rod 307 and the stirring ball 308, which can evenly stir the water flow inside the water storage frame 301, drive the flow area of ​​the water flow and the heat sink to increase, and achieve a heat dissipation effect on the motor 401 through the heat sink. During the rotation of the stirring ball 308, the stirring ball 308 and the squeezing plate 310 are both made of magnetic materials. When the stirring ball 308 moves above the squeezing plate 310, a repulsive force is generated on the squeezing plate 310, and the squeezing plate 310 is pushed downward based on the spring 1. When the squeezing plate 310 moves downward, the water inside the water storage frame 301 is squeezed, and the squeezed water passes through the filter plate 309 and the connecting pipe 312 into the annular pipe 313. The pressure inside the annular pipe 313 tends to be balanced, that is, the squeezed water flows upward from other connecting pipes 312 into the water storage frame 301, completing the backflow, further achieving the effect of water flow.

[0026] The bottom of the water storage frame 301 is fixedly connected to the top of the telescopic frame 209. There are multiple sets of fixed rods 303, stirring rods 307, and filter plates 309. The stirring balls 308 and squeezing plates 310 are made of magnetic materials. One side of the squeezing plate 310 is slidably connected to the water storage frame 301.

[0027] The heat dissipation mechanism 3 also includes an extrusion component 311, which includes a connecting pipe 312. The bottom of the connecting pipe 312 is connected to an annular pipe 313, one side of the annular pipe 313 is fixedly connected to a connecting frame 314, and one side of the bottom of the annular pipe 313 is connected to a water spray pipe 315. An arc rod 316 is fixedly connected to the top edge of the support plate 1, and an extrusion rod 317 is slidably connected to one side of the arc rod 316. One end of the extrusion rod 317 is fixedly connected to an air bag 318, and the end of the air bag 318 away from the extrusion rod 317 is fixedly connected to a heat collecting plate 319. The bottom of the heat collecting plate 319 is fixedly connected to one side of the arc rod 316 through a rubber rod 1, and one side of the arc rod 316 is fixedly connected to one side of the extrusion rod 317 through a rubber rod 2.

[0028] When in use, in the hot summer, the screw drill will be affected when the temperature is too high. Therefore, when one side of the heat collecting plate 319 absorbs enough heat, it will transfer the heat to the airbag 318. The airbag 318 expands due to the heat and pushes the extrusion rod 317 to slide downward along one side of the arc rod 316. The extrusion rod 317 squeezes the annular tube 313. The annular tube 313 and the water spray pipe 315 ports are provided with pressure valves. Only when there is a certain pressure, the valve will open. Through the squeezing of the squeezing rod 317, the internal pressure of the annular tube 313 is too high, and water is sprayed downward through the water spray pipe 315, spraying the water into the auxiliary frame 409 below, and flowing to the drill bit through the small holes opened on the auxiliary frame 409, cooling the spiral blade 403 and the rotating blade 404.

[0029] The connecting pipe 312 is connected to the water storage frame 301 at one end away from the annular pipe 313. There are multiple groups of connecting pipes 312, connecting frames 314, water spray pipes 315, and arc rods 316. The bottom of the connecting frame 314 is fixedly connected to the top of the support plate 1.

[0030] For the third embodiment, please refer to Figure 7-Figure 9 The present invention is a screw drill with a variable torque structure. The earth-breaking mechanism 4 includes a motor 401. The output end of the motor 401 is fixedly connected to a drill shaft 402. One side of the drill shaft 402 is respectively fixedly connected to a spiral blade 403 and a rotating blade 404. One side of the spiral blade 403 is rotatably connected to a conveying cylinder 405. The outer side of the drill shaft 402 is fixedly connected to the inner wall of a pressure sensor 406. The bottom of the water storage frame 301 is fixedly connected to a vibration spring 407. The end of the vibration spring 407 away from the water storage frame 301 is fixedly connected to a shockproof plate 408. The outer wall of the conveying cylinder 405 is fixedly connected to an auxiliary frame 409.

[0031] When in use, the motor 401 is started to drive the rotation of the drill shaft 402, the rotating blade 404 and the spiral blade 403, and the soil can be better broken by the rotation effect of the rotating blade 404. The rotation of the spiral blade 403 can continuously bring the broken soil up along the conveying cylinder 405. The pressure sensor 406 senses the speed of the drill shaft 402, and then transmits the signal to the controller to control the speed of the motor 401, so as to adjust the torque of the screw drill. Secondly, when the cylinder 207 drives the telescopic shaft 208 to extend and retract, the depth of the drill shaft 402 can be controlled, and the shockproof plate 408 and the vibration spring 407 have a further shock-absorbing effect.

[0032] The earth-breaking mechanism 4 also includes an anti-corrosion component 410, which includes a bent rod 411. The support rod 201 is fixedly connected to an anti-corrosion box 412 on one side close to the conveying tube 405. An anti-corrosion plate 413 is slidably connected to the inner wall of the anti-corrosion box 412. A bent rod 414 is fixedly connected to the top of the anti-corrosion plate 413. A magnetic block 415 is fixedly connected to the top of the bent rod 414. A limiting rod 416 is slidably connected to one side of the bent rod 414. A nozzle 417 is connected to the bottom of the anti-corrosion box 412. A magnetic block 418 is fixedly connected to one side of the drill shaft 402 through a bent rod.

[0033] When in use, the rotation of the drill shaft 402 can drive the rotation of the bent rod and the second magnetic block 418. When the second magnetic block 418 moves to the top of the anti-corrosion box 412, it will repel the first magnetic block 415 above the anti-corrosion box 412. The repulsive force pushes the first magnetic block 415 and the bent rod 414 to move downward under the limit of the limit rod 416, and pushes the anti-corrosion plate 413 to move inward along the inside of the anti-corrosion box 412, squeezing the anti-corrosion liquid inside the anti-corrosion box 412. The squeezed anti-corrosion liquid is sprayed out through the nozzle 417 and sprayed into the auxiliary frame 409. The moisture in the auxiliary frame 409 is fused with the preservative, which can further enhance the anti-corrosion effect of the anti-corrosion liquid.

[0034] The bottom of the motor 401 is fixedly connected to one side of the water storage frame 301, the end of the drill shaft 402 away from the motor 401 passes through the water storage frame 301 and is rotatably connected thereto, one side of the conveying cylinder 405 is fixedly connected to the bottom of the support plate 1 through a connecting rod, the bottom of the shockproof plate 408 is fixedly connected to the top of the connecting frame 314, and there are multiple groups of bent rods 411 and anti-corrosion boxes 412. One side of the limit rod 416 is fixedly connected to the support rod 201, and the side of the anti-corrosion plate 413 close to the anti-corrosion box 412 is fixedly connected to the inner wall of the anti-corrosion box 412 through a rubber rod.

[0035] First, the whole device will vibrate during operation, the support plate 1 will vibrate, and then drive the support rod 201 to move downward in the vertical plane based on the compression spring 203 and the sliding shaft 202, and squeeze the compression spring 203 to reduce the impact of vibration. Secondly, the moving wheel 205 at the bottom of the moving plate 204 can drive the movement of the whole device. The starting cylinder 207 can drive the telescopic shaft 208 to extend and retract, thereby driving the telescopic frame 209 and the motor 401 above the telescopic frame 209 to move up and down, which can further drive the drilling shaft 402 to move up and down to perform deep soil breaking treatment.

[0036] When the device is in operation, the motor 401 will emit a large amount of heat. Before this, the water storage frame 301 is filled with water. The wind can drive the rotation of the wind blades 306 and further drive the rotation of the stirring rod 307 and the stirring ball 308, so as to evenly stir the water flow inside the water storage frame 301, increase the flow area of ​​the water flow and the heat sink, and achieve a heat dissipation effect on the motor 401 through the heat sink. During the rotation of the stirring ball 308, the stirring ball 308 and the squeezing plate 310 are both made of magnetic materials. When the stirring ball 308 moves to the top of the squeezing plate 310, a repulsive force will be generated on the squeezing plate 310, and the squeezing plate 310 will be pushed downward based on the spring 1. When the squeezing plate 310 moves downward, the water inside the water storage frame 301 will be squeezed. The squeezed water part passes through the filter plate 309 and the connecting pipe 312 into the annular pipe 313. The pressure inside the annular pipe 313 tends to be balanced, that is, the squeezed water flows upward from other connecting pipes 312 into the water storage frame 301, completing the backflow. Further play a water flow effect. In the hot summer, when the temperature is too high, it will affect the screw drilling tool. Therefore, when one side of the heat collecting plate 319 absorbs enough heat, it will transfer the heat to the airbag 318. The airbag 318 will expand due to the heat and push the extrusion rod 317 to slide downward along one side of the arc rod 316. The extrusion rod 317 will squeeze the annular tube 313. The annular tube 313 and the water spray pipe 315 ports are provided with pressure valves. The valve will only open when there is a certain pressure. Due to the squeezing of the extrusion rod 317, the internal pressure of the annular tube 313 is too high, and water will be sprayed downward through the water spray pipe 315, spraying the water into the auxiliary frame 409 below, and flowing to the drill bit through the small holes opened on the auxiliary frame 409, so as to cool the spiral blades 403 and the rotating blades 404.

[0037] By starting the motor 401 to drive the rotation of the drill shaft 402, the rotating blade 404 and the spiral blade 403, the soil can be better broken by utilizing the rotating effect of the rotating blade 404. The rotation of the spiral blade 403 can continuously bring the broken soil up along the conveying cylinder 405. The pressure sensor 406 senses the speed of the drill shaft 402 and then transmits the signal to the controller to control the speed of the motor 401, so as to adjust the torque of the screw drill. Secondly, when the cylinder 207 drives the telescopic shaft 208 to extend and retract, the depth of the drill shaft 402 can be controlled, and the shockproof plate 408 and the vibration spring 407 have a further shock-absorbing effect. When the drill shaft 402 rotates, the bending rod and the second magnetic block 418 can be driven to rotate. When the second magnetic block 418 moves to the top of the anti-corrosion box 412, the first magnetic block 415 above the anti-corrosion box 412 will be repelled. The repulsive force pushes the first magnetic block 415 and the bending rod 414 to move downward under the limit of the limit rod 416, and pushes the anti-corrosion plate 413 to move inward along the inside of the anti-corrosion box 412, squeezing the anti-corrosion liquid inside the anti-corrosion box 412. The squeezed anti-corrosion liquid is sprayed out through the nozzle 417 and sprayed into the auxiliary frame 409. The moisture in the auxiliary frame 409 is fused with the preservative, which can further enhance the anti-corrosion effect of the anti-corrosion liquid.

[0038] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A screw drill with a variable torque structure, comprising a support plate (1), characterized in that: The bottom of the support plate (1) is fixedly connected to a support mechanism (2), the top of the support plate (1) is fixedly connected to a heat dissipation mechanism (3), and one side of the heat dissipation mechanism (3) is fixedly connected to a soil-breaking mechanism (4); The support mechanism (2) comprises a support rod (201), the bottom of the support rod (201) is slidably connected to a sliding shaft (202), the bottom of the support rod (201) is fixedly connected to a compression spring (203), one end of the sliding shaft (202) away from the support rod (201) is fixedly connected to a moving plate (204), both sides of the moving plate (204) are rotatably connected to moving wheels (205) via a rotating shaft, one side of the support plate (1) is fixedly connected to a support frame (206), the top of the support frame (206) is fixedly connected to a cylinder (207), the output end of the cylinder (207) is fixedly connected to a telescopic shaft (208), and the end of the telescopic shaft (208) away from the cylinder (207) passes through and is fixedly connected to a telescopic frame (209).

2. The screw drill with variable torque structure according to claim 1, characterized in that: The top of the support rod (201) is fixedly connected to the bottom of the support plate (1), and the support rods (201) are provided in multiple groups.

3. The screw drill with variable torque structure according to claim 2, characterized in that: The heat dissipation mechanism (3) comprises a water storage frame (301), a circular heat dissipation plate (302) is fixedly connected to the top of one side of the water storage frame (301), a fixing rod (303) is fixedly connected to the top of the circular heat dissipation plate (302), a support sleeve (304) is fixedly connected to one end of the fixing rod (303) away from the circular heat dissipation plate (302), a wind-following shaft (305) is rotatably connected to the inner wall of the support sleeve (304), a wind-following blade (306) is penetrated and fixedly connected to the one end of the wind-following shaft (305) away from the support sleeve (304), a stirring rod (307) is fixedly connected to the bottom of the wind-following blade (306), and a stirring ball (308) is fixedly connected to the one end of the stirring rod (307) away from the wind-following blade (306), a filter plate (309) is fixedly connected to one side of the water storage frame (301) via a through hole, and a pressing plate (310) is fixedly connected to the top of the filter plate (309) via a spring.

4. The screw drill with variable torque structure according to claim 3, characterized in that: The bottom of the water storage frame (301) is fixedly connected to the top of the telescopic frame (209); the fixing rod (303), the stirring rod (307), and the filter plate (309) are provided in multiple groups; the stirring ball (308) and the squeezing plate (310) are both made of magnetic material; one side of the squeezing plate (310) is slidably connected to the water storage frame (301).

5. The screw drill with variable torque structure according to claim 4, characterized in that: The heat dissipation mechanism (3) further comprises an extrusion component (311), the extrusion component (311) comprising a connecting tube (312), the bottom of the connecting tube (312) being connected to an annular tube (313), one side of the annular tube (313) being fixedly connected to a connecting frame (314), the bottom of the annular tube (313) being connected to a water spraying pipe (315), the top edge of the support plate (1) being fixedly connected to an arc-shaped rod (316), one side of the arc-shaped rod (316) being slidably connected to an extrusion rod (317), one end of the extrusion rod (317) being fixedly connected to an air bag (318), one end of the air bag (318) being fixedly connected to a heat collecting plate (319) away from the extrusion rod (317), the bottom of the heat collecting plate (319) being fixedly connected to one side of the arc-shaped rod (316) via a first rubber rod, and one side of the arc-shaped rod (316) being fixedly connected to one side of the extrusion rod (317) via a second rubber rod.

6. The screw drill with variable torque structure according to claim 5, characterized in that: The connecting pipe (312) is connected to the water storage frame (301) at one end away from the annular pipe (313); the connecting pipe (312), the connecting frame (314), the water spray pipe (315), and the arc rod (316) are provided in multiple groups; the bottom of the connecting frame (314) is fixedly connected to the top of the support plate (1).

7. The screw drill with variable torque structure according to claim 6, characterized in that: The soil-breaking mechanism (4) comprises a motor (401), the output end of the motor (401) being fixedly connected to a drill shaft (402), one side of the drill shaft (402) being respectively fixedly connected to a spiral blade (403) and a rotating blade (404), one side of the spiral blade (403) being rotatably connected to a conveying cylinder (405), the outer side of the drill shaft (402) being fixedly connected to the inner wall of a pressure sensor (406), the bottom of the water storage frame (301) being fixedly connected to a vibration spring (407), one end of the vibration spring (407) away from the water storage frame (301) being fixedly connected to a shockproof plate (408), and the outer wall of the conveying cylinder (405) being fixedly connected to an auxiliary frame (409).

8. The screw drill with variable torque structure according to claim 7, characterized in that: The earth-breaking mechanism (4) further comprises an anti-corrosion component (410), wherein the anti-corrosion component (410) comprises a bent rod (411), an anti-corrosion box (412) is fixedly connected to one side of the support rod (201) close to the conveying tube (405), an anti-corrosion plate (413) is slidably connected to the inner wall of the anti-corrosion box (412), a bent rod (414) is fixedly connected to the top of the anti-corrosion plate (413), a first magnetic block (415) is fixedly connected to the top of the bent rod (414), a limiting rod (416) is slidably connected to one side of the bent rod (414), a nozzle (417) is connected to the bottom of the anti-corrosion box (412), and a second magnetic block (418) is fixedly connected to one side of the drill shaft (402) via a bent rod.

9. The screw drill with variable torque structure according to claim 8, characterized in that: The bottom of the motor (401) is fixedly connected to one side of the water storage frame (301); the end of the drill shaft (402) away from the motor (401) passes through the water storage frame (301) and is rotatably connected thereto; one side of the conveying cylinder (405) is fixedly connected to the bottom of the support plate (1) via a connecting rod; the bottom of the shockproof plate (408) is fixedly connected to the top of the connecting frame (314); a plurality of groups of the bent rods (411) and the anti-corrosion box (412) are provided; one side of the limit rod (416) is fixedly connected to the support rod (201); and the side of the anti-corrosion plate (413) close to the anti-corrosion box (412) is fixedly connected to the inner wall of the anti-corrosion box (412) via a rubber rod.

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