Rock crushing and coring equipment for geotechnical engineering investigation

Abstract

The invention discloses rock crushing and coring equipment for geotechnical engineering investigation, and particularly relates to the technical field of geotechnical engineering investigation, the rock crushing and coring equipment comprises a rack, a coring pipe is locked through a speed reducing pad, at the moment, the contact resistance of the surface of the coring pipe is increased due to contact of the speed reducing pad, and meanwhile when a pneumatic push rod connecting pipe is inflated, the pneumatic push rod connecting pipe is connected with the rack; the hoses connected with the multiple mounting barrels can fill gas into the mounting barrels at the same time, then the rotation resistance of the multiple speed reduction rolling wheels is increased due to intervention of damping sleeves, and then the speed reduction rolling wheels make contact with the surface of the coring pipe all the time under the action of resilience force of multiple first springs; and the speed reduction resistance of the speed reduction rolling wheel acts on the surface of the coring pipe, the coring pipe slowly stops rotating due to inertia and centrifugal force, then the rock core can be sampled again by controlling the rotating speed and the feeding speed of the coring pipe, and therefore the effect that speed reduction protection is conducted on the coring drill bit when the coring drill bit makes contact with the hard part of the rock core is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of geotechnical engineering investigation, and in particular to a rock crushing and coring device for geotechnical engineering investigation. Background Art

[0002] Geotechnical engineering investigation is a technical activity that provides a geological basis for construction projects. Through mapping, exploration, testing and other means, it systematically analyzes the site topography, rock and soil layers, groundwater and adverse geological phenomena, evaluates foundation stability and proposes treatment suggestions. This work is divided into three stages: feasibility study, preliminary investigation and detailed investigation, which correspond to project site selection, design and construction needs respectively, covering areas such as construction, water conservancy, and transportation. The final results include foundation bearing capacity data, site stability report and rock and soil layer treatment plan.

[0003] In the prior art, it is often necessary to perform coring testing on rock cores during geotechnical engineering surveys, and thus coring equipment is required. When the existing coring equipment is in use, the drill rod and the core drill bit are generally rotated in coordination to crush and coring the rock. However, the internal structure of the rock is in an unknown state during the coring process, and there may be a harder structure. During the coring process, the rotation speed and feed speed of the rock are generally in a uniform state. At this time, when the core drill bit contacts the harder layer inside the rock, the staff cannot know the situation of the drill bit inside the rock, and continuous feeding will cause the drill bit to constantly collide with the harder rock. Then, it is not easy for the staff to adjust the rotation speed and feed speed of the drill bit when it is inserted into the rock, which will cause damage to the drill bit and affect its subsequent use effect. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a rock coring device for geotechnical engineering investigation and crushing to solve the problems raised in the above-mentioned background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The bottom surface of the head is rotatably connected to a connecting rotating shaft, and the inner circular wall of the mounting cylinder is slidably connected to a damping sleeve, and the inner circular wall surface of the damping sleeve is rotatably connected to the connecting rotating shaft; a docking cone is provided in the interior of several mounting cylinders, and the outer circular wall surface of the deceleration roller rotating shaft is movably sleeved with the mounting cylinder, and the bottom surface of the docking cone is fixedly installed with the top surface of the deceleration roller rotating shaft, and the bottom surface of the connecting rotating shaft is provided with a docking groove, and the shape of the docking groove is the same as the shape of the docking cone, and several mounting cylinders are connected to the connecting pipe of the pneumatic push rod through a hose; two fixing caps are fixedly installed on both sides of the inner side of the mounting plate, and the inner circular wall surface of the fixing cap is movably sleeved with a first spring, and the inner circular wall surface of the fixing cap is slidably connected to a connecting column, and one end of the connecting column is fixedly mounted on the mounting shell; a contact feedback component is provided on one side of the mounting plate, and is used to provide feedback on the touch of the coring drill bit when the coring drill bit contacts a harder core material, thereby controlling the coring drill bit to slow down and stop rotating to protect it.

[0006] By adopting the above technical solution, the coring drill bit is driven to rotate by the core tube, and the multiple deceleration rollers will rotate with the rotation of the core tube. Then, when the coring drill bit contacts the harder core part, the drive component of the core tube is triggered by the contact feedback component to stop the rotation, and the pneumatic push rod is triggered at the same time. Then, under the action of centrifugal force and inertia, the core tube will decelerate and rotate, and then the telescopic rods of the two pneumatic push rods will drive the deceleration pad to lock the core tube. At this time, the contact resistance of the core tube on the surface is increased due to the contact with the deceleration pad. At the same time, when the pneumatic push rod connecting tube is inflated, the hoses connected to the multiple mounting tubes will simultaneously fill the gas into the interior of the mounting tube, and then seal the push head under the action of air pressure. It will drive the connecting shaft and the damping sleeve to move downward, and then the docking groove at the bottom of the connecting shaft inside the damping sleeve will be wrapped around the outside of the docking cone. At this time, the connecting shaft and the docking cone are docked, and then the rotation of multiple deceleration rollers increases the resistance of the deceleration rollers during rotation due to the intervention of the damping sleeve. Then, because the deceleration rollers are always in contact with the surface of the core tube under the action of the rebound force of multiple first springs, the deceleration resistance of the deceleration rollers will act on the surface of the core tube, and the core tube will slowly stop the rotation caused by inertia and centrifugal force. Then, the staff can sample the core again by controlling the rotation speed and feed speed of the core tube, thereby achieving the effect of reducing the speed of the coring drill bit when it contacts the harder part of the core.

[0007] Preferably, the contact feedback assembly includes: a bearing seat, the bearing seat is fixedly mounted on one side of the mounting plate, a first motor is fixedly mounted on one side of the mounting plate, the inner circular wall surface of the bearing seat is fixedly sleeved with the drive shaft of the first motor, a buffer sleeve is fixedly sleeved on the inner circular wall surface of the bearing seat, a buffer spring is movably sleeved inside the buffer sleeve, a pressure plate is slidably connected to the inside of the buffer sleeve, a receiving shaft is fixedly mounted on the bottom surface of the pressure plate, the receiving shaft passes through the buffer sleeve, the top surface of the pressure plate is rotatably connected to two adjusting bolts, the adjusting bolts pass through the buffer sleeve, and the top surface of the buffer sleeve is rotatably connected to two threaded The adjusting sleeve, the inner circular wall surface of the threaded adjusting sleeve is threadedly connected to the adjusting bolt, the top surface of the buffer sleeve is provided with a touch disk, the bottom surface of the touch disk is fixedly installed with the adjusting bolt, the bottom surface of the supporting shaft is fixedly installed with the core tube, the outer circular wall surface of the bearing seat is fixedly installed with a slide rail, the interior of the slide rail is slidingly connected with a connecting seat, the inner circular wall surface of the connecting seat is fixedly sleeved with a pressure sensor, the bottom surface of the telescopic rod of the pressure sensor is fixedly installed with a mounting sleeve, the interior of the mounting sleeve is rotatably connected with a touch roller, the interior of the slide rail is rotatably connected with a first adjusting screw, and the first adjusting screw is threadedly connected to the connecting seat.

[0008] By adopting the above technical solution, the buffer sleeve, the core tube and the core drill bit can be driven to rotate by the first motor, and then when the core drill bit contacts the harder core part, the resistance encountered by the core drill bit exceeds its original drilling basic value. At this time, the core drill bit will be subjected to resistance, and then under the continuous output of feed, the core drill bit will drive the core tube to squeeze the receiving shaft. At this time, the receiving shaft under pressure will drive the pressure plate to move, so that it squeezes the buffer spring, and the two adjusting bolts will move accordingly, and drive the touch disk to move and contact the touch roller. At this time, the touch roller will drive the mounting sleeve and the telescopic rod of the pressure sensor to move, and then the pressure sensor receives the pressure and feeds back the electrical signal, and then controls the use of multiple deceleration rollers and deceleration pads, and makes them decelerate the core tube, so that the core drill bit stops rotating to protect it.

[0009] Preferably, the top surface of the first movable seat is rotatably connected to a transmission box, the interior of the transmission box is rotatably connected to a first screw rod, a second motor is fixedly mounted on one side of the transmission box, one end of the second motor drive shaft is fixedly mounted to the first screw rod, the interior of the transmission box is slidably connected to a second movable seat, one side of the second movable seat is fixedly mounted to the mounting plate, and the second movable seat is threadedly connected to the first screw rod.

[0010] By adopting the above technical solution, the rotation of the driving shaft of the second motor can drive the first screw to rotate, and then under the action of the threaded transmission, the second movable seat will drive the mounting plate, the core tube and the core drill bit to move, so that the core drill bit and the core tube complete the crushing sampling of the core.

[0011] Preferably, an electric hydraulic rod is fixedly installed on the bottom surface of the mounting frame, the first movable seat is slidingly connected to the mounting frame, the top surface of the first movable seat is rotatably connected to two first connecting rods, and a hinged rod is rotatably connected between the two first connecting rods. One end of the telescopic rod of the electric hydraulic rod passes through the first movable seat and is rotatably connected to the outer circular wall surface of the hinged rod. The two ends of the hinged rod are rotatably connected to the second connecting rod, and the second connecting rod is rotatably connected to the transmission box.

[0012] By adopting the above technical solution, the transmission box can be rotated ninety degrees by extending or retracting the telescopic rod of the electric hydraulic rod to keep it in a horizontal or vertical direction, thereby keeping the core tube and the core drill bit in a horizontal and vertical direction, and then the rocks placed on the plane and the rocks on the bottom surface can be crushed and cored, avoiding the disadvantage that traditional rock coring equipment can only coring rocks in a single direction.

[0013] Preferably, the interior of the frame is rotatably connected to a second adjusting screw, the interior of the frame is fixedly installed with two first guide rods, the second adjusting screw is threadedly connected to the mounting bracket, the first guide rod is slidably connected to the mounting bracket, and the top surface of the second adjusting screw is rotatably connected to a handwheel.

[0014] By adopting the above technical solution, the second adjusting screw can be rotated by the hand wheel, and then the height of the mounting frame, the mounting plate on its top, the core tube and the core drill bit can be adjusted under the action of the threaded transmission, thereby facilitating the adjustment of the working height of the core drill bit when coring vertically stacked rocks.

[0015] Preferably, the interior of the frame is slidably connected to a plurality of slides, two second guide rods are provided inside the frame, both ends of the second guide rods are fixedly mounted to the slides respectively, a second screw rod is provided inside the frame, both ends of the second screw rod are rotatably connected to the slides, a third motor is fixedly mounted on one side of the frame, and one end of the third motor drive shaft is fixedly mounted to the second screw rod.

[0016] By adopting the above technical solution, the driving shaft of the third motor can drive the second screw to rotate, and then under the action of the threaded transmission, the first movable seat will drive the mounting plate on its top as well as the core tube and the core drill bit to move horizontally, thereby completing the broken core drilling of the vertically docked rock.

[0017] Preferably, a water tank is fixedly installed on the inner bottom surface of the frame, a submersible pump is fixedly installed inside the water tank, a fixing ring is fixedly installed on one side of the transmission box, a plurality of serpentine nozzles are fixedly sleeved on the inner circular wall of the fixing ring, and the serpentine nozzles are fixedly sleeved with the water outlet of the submersible pump through a hose.

[0018] By adopting the above technical solution, the water spraying angles can be connected through multiple serpentine nozzles, so that the core drill bit can be cooled when it breaks and drills the core of the rock, thereby increasing its service life.

[0019] Preferably, accordion covers are fixedly installed on the inner top surface and inner bottom surface of several mounting shells and both sides of the second movable seat, and the accordion covers are fixedly installed on the top surface and bottom surface of the mounting frame, and the accordion covers are fixedly installed on the inner wall surface of the transmission box.

[0020] By adopting the above technical solution, the accordion cover can block external dust and foreign objects when the mounting frame and the second movable seat are moving, thereby preventing external dust and foreign objects from entering the interior of the mounting shell and the transmission box and affecting subsequent use.

[0021] In summary, the present application mainly has the following beneficial effects: 1、The present application can lock the coring tube by the speed reducer pad, at this time, the coring tube increases the surface contact resistance due to the contact with the speed reducer pad, and when the pneumatic push rod connecting pipe is inflated, the multiple soft tubes connected with the installation cylinder will simultaneously fill the gas into the inside of the installation cylinder, and the rotation of the multiple speed reduction rollers increases the resistance when rotating due to the intervention of the damping sleeve, and then the speed reduction rollers are always in contact with the surface of the coring tube due to the action of the multiple first spring rebound forces, and then the speed reduction resistance of the speed reduction rollers will act on the surface of the coring tube, and the coring tube will slowly stop rotating due to inertia and centrifugal force, and then the rotation speed and the feeding speed of the coring tube can be controlled to sample the rock core again, so as to achieve the effect of speed reduction protection when the coring bit contacts the relatively hard part of the rock core.

[0022] 2、The first motor of the present application can drive the buffer sleeve, the coring tube and the coring bit to rotate, and then when the coring bit contacts the relatively hard part of the rock core, the resistance received by the coring bit exceeds the original drilling basic value, at this time, the coring bit will be subjected to resistance, and then under the continuous output of the feed, the coring bit will drive the coring tube to extrude the receiving shaft, at this time, the receiving shaft subjected to pressure will drive the pressure plate to move, so as to extrude the buffer spring, and the two adjusting bolts will move and drive the touch disc to move and contact the touch roller, at this time, the touch roller will drive the mounting sleeve and the telescopic rod of the pressure sensor to move, and then the pressure sensor receives the pressure and feeds back the electric signal, and then multiple speed reduction rollers and speed reducer pads are controlled to be used, so as to slow down the coring tube, so as to achieve the effect of stopping the rotation of the coring bit for protection.

[0023] 3、The driving shaft of the second motor of the present application can drive the first screw rod to rotate, and then the second moving seat will drive the mounting plate, the coring tube and the coring bit to move under the action of the threaded transmission, so as to achieve the effect of breaking and sampling the rock core by the coring bit and the coring tube.

[0024] 4、The telescopic rod of the electric hydraulic rod of the present application can extend or retract, so as to make the transmission box rotate by 90 degrees, so as to keep the horizontal or vertical direction, and then the coring tube and the coring bit can keep the horizontal and vertical directions, so as to break and sample the rock on the plane and the rock on the bottom surface, so as to achieve the effect of avoiding the traditional rock coring equipment which can only sample the rock in a single direction.

[0025] 5、The hand wheel of the present application can drive the second adjusting screw rod to rotate, and then the mounting frame, the mounting plate on the top of the mounting frame, the coring tube and the coring bit can be adjusted in height under the action of the threaded transmission, so as to achieve the effect of adjusting the use height when the coring bit samples the rock vertically stacked.

[0026] 6. The present invention can drive the second screw to rotate through the driving shaft of the third motor, and then under the action of the threaded transmission, the first movable seat will drive the mounting plate on its top as well as the core tube and the core drill bit to move horizontally, thereby achieving the effect of completing the broken core drilling of the vertically docked rock. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the frame structure of the present invention; Figure 3 yes Figure 2 A partial enlarged schematic diagram; Figure 4 It is a schematic diagram of the mounting plate structure of the present invention; Figure 5 It is a schematic structural diagram of the buffer sleeve of the present invention; Figure 6 yes Figure 5 A partial enlarged schematic diagram of B in the middle; Figure 7 It is a schematic diagram of the installation shell structure of the present invention; Figure 8 yes Figure 7 A partial enlarged schematic diagram of center C; Figure 9 It is a schematic structural diagram of the transmission box of the present invention; Figure 10 It is a schematic structural diagram of the mounting frame of the present invention.

[0028] Figure numerals: 1, frame; 2, mounting frame; 3, transmission box; 4, core tube; 5, core drill bit; 6, water tank; 7, equipment box; 8, mounting shell; 9, first movable seat; 10, first connecting rod; 11, hinged rod; 12, second connecting rod; 13, mounting plate; 14, electric hydraulic rod; 15, fixing ring; 16, serpentine nozzle; 17, first motor; 18, bearing seat; 19, buffer sleeve; 20, speed reduction pad; 21, mounting shell; 22, pressure plate; 23, receiving shaft; 24, buffer spring; 25, adjusting bolt; 26, threaded adjusting sleeve; 27, touch plate; 28, sliding Rail; 29. ​​First adjusting screw; 30. Connecting seat; 31. Pressure sensor; 32. Mounting sleeve; 33. Touch roller; 34. Speed ​​reduction roller; 35. Mounting tube; 36. Fixing cap; 37. First spring; 38. Connecting column; 39. Pneumatic push rod; 40. Docking cone; 41. Damping sleeve; 42. Connecting shaft; 43. Sealing push rod; 44. Second motor; 45. Second moving seat; 46. First screw rod; 47. Organ cover; 48. Third motor; 49. Second adjusting screw; 50. First guide rod; 51. Sliding seat; 52. Second guide rod; 53. Second screw rod. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example: Reference Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8, a rock coring equipment for geotechnical engineering investigation and crushing, comprising: a frame 1, a plurality of mounting shells 8 are fixedly installed on the top surface of the frame 1, a plurality of mounting shells 8 are slidably connected with a mounting frame 2, a first movable seat 9 is provided on the top surface of the mounting frame 2, and an equipment box 7 is fixedly installed on the inner bottom surface of the frame 1; a transmission box 3 is provided on the top surface of the first movable seat 9, a core tube 4 is provided on one side of the transmission box 3, a core drill bit 5 is fixedly installed on the bottom surface of the core tube 4, a mounting plate 13 is provided on one side of the core tube 4, a plurality of mounting shells 21 are provided inside the mounting plate 13, each two mounting shells 21 form a group, a plurality of deceleration rollers 34 are rotatably connected inside the mounting shell 21, and two deceleration pads 20 are provided inside the mounting plate 13; pneumatic push rods 39 are fixedly installed on both sides of the interior of the mounting plate 13, one end of the telescopic rod of the pneumatic push rod 39 is fixedly installed with the deceleration pad 20, a plurality of mounting cylinders 35 are fixedly installed on the top surface of the mounting shell 21, and the mounting cylinder 35 The position corresponds to the deceleration roller 34, and the internal movably sleeve of the mounting cylinder 35 is provided with a sealing push head 43, and the bottom surface of the sealing push head 43 is rotatably connected to the connecting shaft 42. The internal sliding connection of the mounting cylinder 35 is provided with a damping sleeve 41, and the inner circular wall surface of the damping sleeve 41 is rotatably connected to the connecting shaft 42; the interior of several mounting cylinders 35 is provided with a docking cone 40, and the outer circular wall surface of the rotating shaft of the deceleration roller 34 is movably sleeved with the mounting cylinder 35, and the bottom surface of the docking cone 40 is fixedly installed with the top surface of the rotating shaft of the deceleration roller 34, and the bottom surface of the connecting shaft 42 is provided with a docking groove, and the shape of the docking groove is the same as that of the docking cone 40. Several mounting cylinders 35 are connected to the connecting pipe of the pneumatic push rod 39 through a hose; two fixing caps 36 are fixedly installed on both sides of the interior of the mounting plate 13, and the inner circular wall surface of the fixing cap 36 is movably sleeved with a first spring 37. The interior of the fixing cap 36 is slidably connected with a connecting column 38, and one end of the connecting column 38 is fixedly installed with the mounting shell 21;The side of the mounting plate 13 is provided with a contact feedback assembly, and is used for feeding back the touch of the coring drill bit 5 when the coring drill bit 5 contacts the hard rock core material, so as to control the coring drill bit 5 to slow down and stop rotating to protect the coring drill bit 5. The contact feedback assembly comprises a bearing seat 18, the bearing seat 18 is fixedly installed on one side of the mounting plate 13, a first motor 17 is fixedly installed on one side of the mounting plate 13, the inner circular wall surface of the bearing seat 18 is fixedly sleeved with the driving shaft of the first motor 17, the inner circular wall surface of the bearing seat 18 is fixedly sleeved with a buffer sleeve 19, the buffer sleeve 19 movably sleeves with a buffer spring 24, the inner circular wall surface of the buffer sleeve 19 movably connects with a pressing plate 22, the bottom surface of the pressing plate 22 is fixedly installed with an accommodating shaft 23, the accommodating shaft 23 penetrates through the buffer sleeve 19, the top surface of the pressing plate 22 rotatably connects with two adjusting bolts 25, the adjusting bolts 25 penetrate through the buffer sleeve 19, the top surface of the buffer sleeve 19 rotatably connects with two threaded adjusting sleeves 26, the inner circular wall surface of the threaded adjusting sleeve 26 is threadedly connected with the adjusting bolts 25, the top surface of the buffer sleeve 19 is provided with a touch disc 27, the bottom surface of the touch disc 27 is fixedly installed with the adjusting bolts 25, the bottom surface of the accommodating shaft 23 is fixedly installed with the coring pipe 4, the outer circular wall surface of the bearing seat 18 is fixedly installed with a sliding rail 28, the inner circular wall surface of the sliding rail 28 movably connects with a connecting seat 30, the inner circular wall surface of the connecting seat 30 is fixedly sleeved with a pressure sensor 31, the bottom surface of the telescopic rod of the pressure sensor 31 is fixedly installed with a mounting sleeve 32, the inner circular wall surface of the mounting sleeve 32 rotatably connects with a touch roller 33, the inner circular wall surface of the sliding rail 28 rotatably connects with a first adjusting screw 29, the first adjusting screw 29 is threadedly connected with the connecting seat 30, the buffer sleeve 19, the coring pipe 4 and the coring drill bit 5 can be driven to rotate by the first motor 17, when the coring drill bit 5 contacts the hard rock core material, the resistance received by the coring drill bit 5 exceeds the original drilling basic value, at this time, the coring drill bit 5 will be resisted, under the continuous output of the feed, the coring drill bit 5 will drive the coring pipe 4 to extrude the accommodating shaft 23, at this time, the accommodating shaft 23 receiving the pressure will drive the pressing plate 22 to move, so as to extrude the buffer spring 24, and the two adjusting bolts 25 will move, and drive the touch disc 27 to move and make it contact the touch roller 33, at this time, the touch roller 33 will drive the mounting sleeve 32 and the telescopic rod of the pressure sensor 31 to move, and then the pressure sensor 31 receives the pressure and feeds back the electric signal, and then controls a plurality of speed reduction rollers 34 and speed reduction pads 20 to be used, and makes them slow down the coring pipe 4, so as to make the coring drill bit 5 stop rotating to protect the coring drill bit 5.

[0031] Based on the above embodiment, reference is made to Figure 1 、 Figure 2 、 Figure 3 、 Figure 9 and Figure 10The top surface of the first movable seat 9 is rotatably connected to the transmission box 3, and the interior of the transmission box 3 is rotatably connected to the first screw rod 46. A second motor 44 is fixedly installed on one side of the transmission box 3, and one end of the driving shaft of the second motor 44 is fixedly installed with the first screw rod 46. The interior of the transmission box 3 is slidably connected with the second movable seat 45, and one side of the second movable seat 45 is fixedly installed with the mounting plate 13. The second movable seat 45 is threadedly connected with the first screw rod 46, and the first screw rod 46 can be driven to rotate by the rotation of the driving shaft of the second motor 44. Then, under the action of the threaded transmission, the second movable seat 45 will drive the mounting plate 13, the core tube 4 and the core drill bit 5 to move, so that the core drill bit 5 and the core tube 4 complete the crushing sampling of the core. The bottom surface of the mounting frame 2 is fixedly installed There is an electric hydraulic rod 14, the first movable seat 9 is slidably connected to the mounting frame 2, the top surface of the first movable seat 9 is rotatably connected to two first connecting rods 10, and the two first connecting rods 10 are rotatably connected with a hinged rod 11. One end of the telescopic rod of the electric hydraulic rod 14 passes through the first movable seat 9 and is rotatably connected to the outer circular wall of the hinged rod 11. The two ends of the hinged rod 11 are rotatably connected to the second connecting rod 12, and the second connecting rod 12 is rotatably connected to the transmission box 3. The telescopic rod of the electric hydraulic rod 14 is extended or retracted, and the transmission box 3 can be rotated ninety degrees to keep it horizontal or vertical, thereby keeping the core tube 4 and the core drill bit 5 horizontal and vertical, and then the rocks placed on the plane and the rocks on the bottom surface can be crushed and cored, avoiding the traditional rock coring equipment The drawback of only being able to coring rocks in a single direction is that the frame 1 is internally rotatably connected to a second adjusting screw 49, and two first guide rods 50 are fixedly installed inside the frame 1, and the second adjusting screw 49 is threadedly connected to the mounting frame 2, and the first guide rod 50 is slidably connected to the mounting frame 2, and the top surface of the second adjusting screw 49 is rotatably connected to a hand wheel, which can be used to rotate the second adjusting screw 49, and then the mounting frame 2 and the mounting plate 13 on its top as well as the coring tube 4 and the coring drill bit 5 can be adjusted in height under the action of the threaded transmission, so as to facilitate the adjustment of the height of the coring drill bit 5 when coring vertically stacked rocks, and the frame 1 is internally slidably connected to a plurality of slides 51, and the frame 1 is provided with two second guide rods. Rod 52, both ends of the second guide rod 52 are fixedly installed with the slide 51 respectively, and a second screw rod 53 is provided inside the frame 1, and both ends of the second screw rod 53 are rotatably connected with the slide 51. A third motor 48 is fixedly installed on one side of the frame 1, and one end of the driving shaft of the third motor 48 is fixedly installed with the second screw rod 53. The driving shaft of the third motor 48 can drive the second screw rod 53 to rotate, and then under the action of the threaded transmission, the first movable seat 9 will drive the mounting plate 13 on its top as well as the core tube 4 and the core drill bit 5 to move horizontally, so that it can complete the broken core drilling of the vertically docked rock. A water tank 6 is fixedly installed on the inner bottom surface of the frame 1, and a submersible pump is fixedly installed inside the water tank 6. A fixing ring 15 is fixedly installed on one side of the transmission box 3.The inner circular wall surface of the fixed ring 15 is fixedly sleeved with a plurality of serpentine nozzles 16, the serpentine nozzles 16 are fixedly sleeved with the water outlet of the submersible pump through a hose, the water spraying angle of the serpentine nozzles 16 can be sleeved, so that the rock core drilled by the core drill bit 5 can be cooled and processed, the service life is improved, the inner top surface and the inner bottom surface of the installation shell 8 and the two sides of the second moving seat 45 are fixedly installed with an organ case 47, the organ case 47 is fixedly installed with the top surface and the bottom surface of the mounting frame 2, the organ case 47 is fixedly installed with the inner wall surface of the transmission box 3, when the mounting frame 2 and the second moving seat 45 move, the organ case 47 can block dust and foreign matters in the outside, so that the dust and foreign matters in the outside cannot enter the inside of the installation shell 8 and the transmission box 3 and affect the subsequent use.

[0032] Working principle: please refer to Figures 1-10 As shown, in use, the core drill bit 5 is driven to rotate by the core tube 4, at the same time, the plurality of speed reduction rollers 34 rotate with the rotation of the core tube 4, when the core drill bit 5 contacts the hard rock core, the driving assembly of the core tube 4 is triggered to stop rotating by the contact feedback assembly, at the same time, the pneumatic push rod 39 is triggered, under the action of centrifugal force and inertia, the core tube 4 slows down and rotates, the extension rods of the two pneumatic push rods 39 drive the speed reduction pads 20 to lock the core tube 4, at this time, the contact resistance of the surface of the core tube 4 increases due to the contact of the speed reduction pads 20, at the same time, when the pneumatic push rod 39 connection pipe is inflated, the plurality of installation barrels 35 connected with the hose simultaneously inflate the gas into the inside of the installation barrels 35, under the action of gas pressure, the sealing push head 43 drives the connection shaft 42 and the damping sleeve 41 to move downward, the docking groove at the bottom of the connection shaft 42 inside the damping sleeve 41 wraps outside the docking cone 40, at this time, the connection shaft 42 and the docking cone 40 are docked, the rotation of the plurality of speed reduction rollers 34 increases the resistance due to the intervention of the damping sleeve 41, at the same time, the speed reduction rollers 34 are always in contact with the surface of the core tube 4 due to the action of the plurality of first springs 37, the resistance of the speed reduction rollers 34 acts on the surface of the core tube 4, and the core tube 4 slowly stops rotating due to inertia and centrifugal force, then the worker can control the rotation speed and feed speed of the core tube 4 to sample the rock core again, so as to achieve the effect of reducing the speed of the core drill bit 5 when it contacts the hard part of the rock core.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rock coring equipment for geotechnical engineering investigation, characterized in that: include: A rack, wherein a plurality of mounting shells are fixedly mounted on the top surface of the rack, a mounting frame is slidably connected between the mounting shells, a first movable seat is provided on the top surface of the mounting frame, and an equipment box is fixedly mounted on the inner bottom surface of the rack; A transmission box is provided on the top surface of the first movable seat, a core tube is provided on one side of the transmission box, a core drill bit is fixedly installed on the bottom surface of the core tube, a mounting plate is provided on one side of the core tube, a plurality of mounting shells are provided inside the mounting plate, and each two mounting shells form a group, a plurality of deceleration rollers are rotatably connected inside the mounting shells, and two deceleration pads are provided inside the mounting plate; Pneumatic push rods are fixedly installed on both sides of the interior of the mounting plate, one end of the telescopic rod of the pneumatic push rod is fixedly installed with the deceleration pad, and a plurality of mounting cylinders are fixedly installed on the top surface of the mounting shell. The position of the mounting cylinder corresponds to the deceleration roller. A sealing push head is movably sleeved inside the mounting cylinder. The bottom surface of the sealing push head is rotatably connected to the connecting shaft. A damping sleeve is slidably connected inside the mounting cylinder. The inner circular wall surface of the damping sleeve is rotatably connected to the connecting shaft. A docking cone is provided inside each of the mounting cylinders. The outer circumferential wall of the reduction roller rotating shaft is movably connected to the mounting cylinder. The bottom surface of the docking cone is fixedly installed with the top surface of the reduction roller rotating shaft. A docking groove is provided on the bottom surface of the connecting shaft. The shape of the docking groove is the same as that of the docking cone. The mounting cylinders are connected to the connecting pipe of the pneumatic push rod through a hose. Two fixing caps are fixedly installed on both sides of the interior of the mounting plate. The inner circular wall of the fixing cap is movably sleeved with a first spring. The interior of the fixing cap is slidably connected to a connecting column, and one end of the connecting column is fixedly installed with the mounting shell.

2. The rock crushing and coring equipment for geotechnical engineering investigation according to claim 1, characterized in that: A contact feedback component is provided on one side of the mounting plate, and is used to provide feedback on the touch of the coring drill bit when the coring drill bit contacts a harder core material, thereby controlling the coring drill bit to slow down and stop rotating to protect it. The contact feedback component includes: a bearing seat, the bearing seat is fixedly mounted on one side of the mounting plate, a first motor is fixedly mounted on one side of the mounting plate, the inner circular wall surface of the bearing seat is fixedly sleeved with the drive shaft of the first motor, the inner circular wall surface of the bearing seat is fixedly sleeved with a buffer sleeve, the internal movably sleeved with a buffer spring, and the inner surface of the buffer sleeve is fixedly sleeved with a buffer spring. The top surface of the bearing seat is fixed with a slide rail, and the inner surface of the slide rail is connected to the connecting seat, and the inner surface of the slide rail is connected to the connecting seat, and the inner surface of the slide rail is connected to the connecting seat. The inner circular wall surface of the seat is fixedly sleeved with a pressure sensor, and the bottom surface of the telescopic rod of the pressure sensor is fixedly installed with a mounting sleeve. The internal rotation of the mounting sleeve is connected to a sensing roller, and the internal rotation of the slide rail is connected to a first adjusting screw. The first adjusting screw is threadedly connected to the connecting seat, and the buffer sleeve, the core tube and the coring drill bit can be driven to rotate by the first motor. When the coring drill bit contacts the harder core part, the resistance encountered by the coring drill bit exceeds its original drilling basic value. At this time, the coring drill bit will be subjected to resistance, and then under the continuous output of the feed, the coring drill bit will drive the core tube to squeeze the receiving shaft. At this time, the receiving shaft under pressure will drive the pressure plate to move, so that it squeezes the buffer spring, and the two adjusting bolts will move accordingly, and drive the sensing disk to move and contact the sensing roller. At this time, the sensing roller will drive the mounting sleeve and the telescopic rod of the pressure sensor to move, and then the pressure sensor receives the pressure and feeds back the electrical signal, and then controls multiple deceleration rollers and deceleration pads for use, and decelerates the core tube, so that the coring drill bit stops rotating to protect it.

3. The rock crushing and coring equipment for geotechnical engineering investigation according to claim 1, characterized in that: The top surface of the first movable seat is rotatably connected to a transmission box, and the interior of the transmission box is rotatably connected to the first screw rod. A second motor is fixedly installed on one side of the transmission box, and one end of the second motor driving shaft is fixedly installed with the first screw rod. The interior of the transmission box is slidably connected to the second movable seat, and one side of the second movable seat is fixedly installed with the mounting plate. The second movable seat is threadedly connected to the first screw rod, and the first screw rod can be driven to rotate by rotating the driving shaft of the second motor. Then, under the action of the threaded transmission, the second movable seat will drive the mounting plate, the core tube and the core drill bit to move, so that the core drill bit and the core tube complete the crushing sampling of the core.

4. The rock crushing and coring equipment for geotechnical engineering investigation according to claim 1, characterized in that: The bottom surface of the mounting frame is fixedly installed with an electric hydraulic rod, the first movable seat is slidably connected to the mounting frame, the top surface of the first movable seat is rotatably connected to two first connecting rods, and the two first connecting rods are rotatably connected to a hinged rod, one end of the telescopic rod of the electric hydraulic rod passes through the first movable seat and is rotatably connected to the outer circular wall surface of the hinged rod, and the two ends of the hinged rod are rotatably connected to the second connecting rod, and the second connecting rod is rotatably connected to the transmission box. By extending or retracting the telescopic rod of the electric hydraulic rod, the transmission box can be rotated ninety degrees to keep it in a horizontal or vertical direction, thereby keeping the core tube and the core drill bit in a horizontal and vertical direction, and then the rocks placed on the plane and the rocks on the bottom surface can be crushed and cored, avoiding the disadvantage that traditional rock coring equipment can only coring rocks in a single direction.

5. The rock crushing and coring equipment for geotechnical engineering investigation according to claim 1, characterized in that: The interior of the frame is rotatably connected to a second adjusting screw, and two first guide rods are fixedly installed inside the frame, the second adjusting screw is threadedly connected to the mounting bracket, the first guide rod is slidably connected to the mounting bracket, and the top surface of the second adjusting screw is rotatably connected to a hand wheel, and the second adjusting screw can be rotated by the hand wheel, and then the height of the mounting bracket, the mounting plate on its top, the core tube and the core drill bit can be adjusted under the action of the threaded transmission, so as to facilitate the adjustment of the use height of the core drill bit when coring vertically stacked rocks.

6. The rock crushing and coring equipment for geotechnical engineering investigation according to claim 1, characterized in that: The frame is internally slidably connected to several slides, and two second guide rods are provided inside the frame, and two ends of the second guide rod are fixedly installed with the slide respectively, and a second screw rod is provided inside the frame, and both ends of the second screw rod are rotatably connected with the slide, and a third motor is fixedly installed on one side of the frame, and one end of the third motor driving shaft is fixedly installed with the second screw rod, and the second screw rod can be driven to rotate by the driving shaft of the third motor, and then under the action of the threaded transmission, the first moving seat will drive the mounting plate on its top, the core tube and the core drill bit to move horizontally, and the slave makes it complete the broken core drilling of the vertically docked rock.

7. The rock crushing and coring equipment for geotechnical engineering investigation according to claim 1, characterized in that: A water tank is fixedly installed on the inner bottom surface of the frame, a submersible pump is fixedly installed inside the water tank, a fixing ring is fixedly installed on one side of the transmission box, a plurality of serpentine nozzles are fixedly sleeved on the inner circular wall surface of the fixing ring, the serpentine nozzles are fixedly sleeved with the water outlet of the submersible pump through a hose, and the water spraying angle can be sleeved by multiple serpentine nozzles, so that the core drill bit can be cooled when it breaks the rock and drills the core, thereby improving its service life.

8. The rock crushing and coring equipment for geotechnical engineering investigation according to claim 1, characterized in that: Several of the inner top surfaces and inner bottom surfaces of the mounting shells and both sides of the second movable seat are respectively fixedly mounted with accordion covers, the accordion covers are fixedly mounted to the top surface and bottom surface of the mounting frame, and the accordion covers are fixedly mounted to the inner wall surface of the transmission box. The accordion covers can block external dust and foreign objects when the mounting frame and the second movable seat move, thereby preventing external dust and foreign objects from entering the interior of the mounting shell and the transmission box and affecting subsequent use.

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