Anti-pollution device of pavement coring machine
The combination of splash guard and wastewater collector solved the pollution problem during road coring, enabled centralized collection and treatment of cooling water and debris, reduced manual cleaning costs and time, and improved the working environment for coring.
Patent Information
- Application Number
- CN202511460954.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-01-16
AI Technical Summary
Existing technologies cannot effectively prevent contamination of the road surface and core sampling holes, increasing the cost of manual cleaning.
A combination device of splash guard and wastewater collector is used, which is connected by a drain pipe. The splash guard blocks the cooling water and debris thrown out when the core drill rotates at high speed. The water-absorbing sponge absorbs the splashed wastewater, and the spiral separator separates and collects the wastewater and debris.
It reduces the splashing of cooling water and debris, lowers the need for manual cleaning and costs, ensures the stability and operational flexibility of the coring process, and improves the working environment.
Smart Images
Figure CN121345441A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of coring technology for road coring machines, and particularly relates to a pollution prevention device for road coring machines. Background Technology
[0002] In road construction, core sampling of asphalt pavement can reveal information about the material, thickness, and density of the asphalt pavement, helping to determine whether it meets design requirements and service life.
[0003] Generally, we use coring machines to extract cores from the surface layer. Cooling water is used to cool the drill bit and flush out loose material. However, this cooling water carries drilled dust and flows up and down the paved road surface, causing pollution. Furthermore, the cooling water can seep into the gaps in the base layer, affecting the quality of the project. Current technology cannot prevent pollution of the road surface and the core hole, increasing the cost of manual cleaning. Summary of the Invention
[0004] The objective of this invention is to address the technical problem that existing technologies cannot prevent pollution of the road surface and core sampling holes, thus increasing the cost of manual cleaning.
[0005] To achieve the above objectives, the present invention provides a pollution prevention device for road coring machines.
[0006] The specific technical solution adopted in this invention is as follows: A pollution prevention device for a road coring machine includes a splash guard and a wastewater collector, which are connected by a drain pipe. The splash guard has a base at its bottom and a movable guide rail at its center. The coring machine is slidably mounted inside the movable guide rail. The coring machine can slide up and down along the movable guide rail. When the coring machine slides down, the coring drill of the coring machine drills a hole in the road surface to extract the cored material. The cooling and lubricating water used during drilling and the debris generated during drilling are thrown out by the rotating coring drill, collected through the inner wall of the splash guard, and then enter the wastewater collector through the drain pipe.
[0007] During coring, the base provides stability, and the high-speed rotation of the core drill bit throws out wastewater and drilling debris together. The wastewater is blocked by the splash guard to prevent splashing and contaminating the road surface. The splashed wastewater slides down the splash guard and is absorbed by the absorbent sponge. Excess wastewater from the core sampling can be discharged through the drain pipe and collected by the wastewater collection device. After the core sampling is completed, the device is moved away by raising the drill bit to check the core sampling situation. The wastewater is squeezed out by squeezing the absorbent sponge and placed in the designated position for the next core sampling operation.
[0008] Furthermore, the inner wall of the splash guard is provided with an absorbent sponge to absorb splashed cooling lubricating water and drilling debris.
[0009] Furthermore, a spiral separator is provided between the absorbent sponge and the core drill. The spiral separator includes a conical permeable plate, and a coaxial conical spiral shaft is provided on the inner side of the permeable plate. The center of the conical spiral shaft is provided with the movable guide rail through a connecting seat. The bottom of the connecting seat is connected to a mud-throwing wheel that rotates in the opposite direction to the conical spiral shaft through a bearing. The core drill has a concentric outer cylinder and an inner shaft that rotate in opposite directions. The outer cylinder and the inner shaft are driven by an opposite-direction driver. The outer cylinder is connected to the movable guide rail and drives the conical spiral shaft mud-throwing wheel to rotate. The inner shaft is connected to the mud-throwing wheel and drives the mud-throwing wheel to rotate.
[0010] Furthermore, the reverse drive includes a first motor and a second motor, with the first motor driving the inner shaft and the second motor driving the outer cylinder.
[0011] Furthermore, the reverse drive includes a drive motor, the output shaft of the drive motor is fixedly connected to a drive shaft, the end of the drive shaft is fixedly equipped with a third bevel gear, the third bevel gear meshes with a first bevel gear and a second bevel gear respectively, the first bevel gear and the second bevel gear are coaxial and arranged opposite each other on the side with teeth, the first bevel gear is fixedly connected to the inner shaft, and the second bevel gear is fixedly connected to the outer cylinder.
[0012] Furthermore, the conical spiral shaft is a conical hollow conical cylinder with an opening at the pointed end. The connecting seat is fixedly connected inside the opening. The outer side of the conical cylinder is provided with spiral blades to form a conical auger. The outer side of the spiral blades has no pressure contact with the inner side of the conical permeable plate.
[0013] Furthermore, the bottom of the connecting seat is provided with an end face bearing, and a tripod is connected to the bottom of the end face bearing. The three legs of the tripod are connected to the bottom opening of the conical permeable plate and fixed to the top surface of the base. The mud-throwing wheel is located inside the end face bearing and is connected to the center hole of the connecting seat through an angular contact bearing.
[0014] Furthermore, the center of the mud-slinging wheel is a stepped hole, the bottom diameter of which is larger than the top diameter. The bottom of the stepped hole is fixed with the angular contact bearing. The top wall of the stepped hole has several limiting holes evenly distributed around its circumference, perpendicular to the axis of the stepped hole. A spring and a steel ball are installed in the limiting holes. Under normal conditions, a portion of the steel ball is exposed inside the stepped hole under the pressure of the spring. The distance from the apex of the exposed portion to the center of the steel ball is less than the diameter of the steel ball. The wall of the core drill has several long grooves along the axis of the core drill. The positions of the long grooves correspond one-to-one with the positions of the limiting holes. When the core drill bit enters the stepped hole of the mud-slinging wheel, the steel ball engages with the long grooves, driving the mud-slinging wheel to rotate.
[0015] Furthermore, the top of the conical spiral shaft is provided with an arc-shaped guide plate, which guides the drill debris transported by the conical spiral shaft to fall into the mud storage cavity inside the conical spiral shaft.
[0016] The positive effects of this invention are as follows: The splash guard prevents cooling water and debris from splashing onto the road surface or surrounding workers during high-speed rotation of the coring drill, reducing subsequent manual cleaning and saving time and costs. The wastewater collector, connected to the splash guard via a drain pipe, allows for centralized collection and treatment of wastewater and debris, preventing sewage from seeping into the base layer. The base enhances the stability of the device, making the coring process smoother. The moving guide rail ensures the stability of the coring machine's vertical sliding, guaranteeing operational flexibility and ensuring stable drilling by the coring drill, thus preventing core breakage to a certain extent. The overall device has a simple structure and is easy to operate, reducing manual cleaning costs and time, and improving the working environment for coring. Compared to existing technologies, it effectively improves the conditions for wastewater and debris splashing, reduces subsequent manual cleaning, and saves time and costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the pollution prevention device for a road coring machine according to the present invention; Figure 2 yes Figure 1 The diagram shown is a structural schematic of the anti-pollution device for a road coring machine of the present invention after removing the drainage pipe and wastewater collection device, used to illustrate the internal structure of the anti-splash device; Figure 3 yes Figure 2 The diagram shown is a structural schematic of a second embodiment of a pollution prevention device for a road coring machine according to the present invention. Figure 4 yes Figure 3 Enlarged view at point M; Figure 5 yes Figure 3 Enlarged view at point N; Figure 6 yes Figure 3 The diagram shown is a three-dimensional structural schematic of the anti-pollution device for a road coring machine according to the present invention after removing the slide and base; Legend: 1—Splash shield, 101—Base bottom surface, 2—Handle, 3—Absorbent sponge, 4—Nut, 5—Drain outlet, 6—Drain pipe, 7—Wastewater collector, 8—Base, 9—Moving track, 10—Slide table, 11—Drive motor, 12—Opposite drive, 1201—Drive shaft, 1202—First bearing, 1203—Second bearing, 1204—Bearing end cover, 1205—Mandrel, 1206—Top cover, 1207—First bevel gear, 1208—First cavity, 1209—Second bevel gear, 1210—Second cavity, 1211—Connecting base, 1212—Slide table top plate, 1213—Third bearing, 1214—Inner shaft connection, 1215—Outer cylinder connection, 1216—Connecting bolt. 1217—Connecting flange, 1218—Outer sleeve, 1219—Third bevel gear, 13—Outer cylinder, 14—Inner shaft, 15—Arc-shaped guide plate, 16—Conical spiral shaft, 1601—First spiral blade, 17—Coring drill, 1701—Core drill, 1702—Drill bit, 18—Mixed wheel, 1801—Fourth bearing, 1802—Second spiral blade, 19—Permeable plate, 20—Water storage cavity, 21—Limiting guide groove, 22—Limiting guide post, 23—Connecting seat, 24—Mixed storage cavity, 25—Guide inner wall. Detailed Implementation
[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments: In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0020] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.
[0021] like Figure 1The diagram shows a structural diagram of a pollution prevention device for a road coring machine according to an embodiment of the present invention. The pollution prevention device includes a splash guard 1 and a wastewater collector 7, which are connected by a drain pipe 6. The bottom of the splash guard 1 is provided with a base 8, and the center of the middle part of the splash guard 1 is provided with a moving guide rail 9. The coring machine is slidably mounted inside the moving guide rail 9. The coring machine can slide up and down along the moving guide rail 9. When the coring machine slides down, the coring drill 17 of the coring machine drills a hole in the road surface to extract the cor. The cooling and lubricating water used during the drilling process and the debris generated during drilling are thrown out by the rotating coring drill 17, collected through the inner wall of the splash guard 1, and then enter the wastewater collector 7 through the drain pipe 6.
[0022] During coring, the base provides stability, and the high-speed rotation of the core drill bit throws out wastewater and drilling debris together. The wastewater is blocked by the splash guard to prevent splashing and contaminating the road surface. The splashed wastewater slides down the splash guard and is absorbed by the absorbent sponge. Excess wastewater from the core sampling can be discharged through the drain pipe and collected by the wastewater collection device. After the core sampling is completed, the device is moved away by raising the drill bit to check the core sampling situation. The wastewater is squeezed out by squeezing the absorbent sponge and placed in the designated position for the next core sampling operation.
[0023] In this embodiment of the invention, a splash guard prevents cooling water and debris from being splashed onto the road surface or surrounding workers during the high-speed rotation of the coring drill, thus reducing the need for subsequent manual cleaning and saving on procedures and costs. A wastewater collector connected to the splash guard via a drain pipe allows for centralized collection and treatment of wastewater and debris, preventing sewage from flowing and seeping into the base layer. The base enhances the stability of the device, making the coring process smoother. The moving guide rail ensures the stability of the coring machine's vertical sliding, guaranteeing operational flexibility and ensuring stable drilling by the coring drill, thus preventing core breakage to a certain extent. The overall device has a simple structure and is easy to operate, reducing manual cleaning costs and time, and improving the working environment for coring. Compared to existing technologies, it effectively improves the conditions for wastewater and debris splashing, reduces subsequent manual cleaning, and saves on procedures and costs.
[0024] Example 1: A structural diagram of a pollution prevention device for a road coring machine. The pollution prevention device includes a splash guard 1 and a wastewater collector 7, which are connected by a drain pipe 6. The bottom of the splash guard 1 is provided with a base 8, and the center of the splash guard 1 is provided with a moving guide rail 9. The coring machine is slidably mounted inside the moving guide rail 9. The coring machine can slide up and down along the moving guide rail 9. When the coring machine slides down, the coring drill 17 of the coring machine drills a hole in the road surface to extract the cor. The cooling and lubricating water used during the drilling process and the debris generated during drilling are thrown out by the rotating coring drill 17, collected through the inner wall of the splash guard 1, and then enter the wastewater collector 7 through the drain pipe 6.
[0025] The splash guard 1 is a cylindrical body with an open top and a base 8 on the bottom. The center of the base 8 has a hole for a core drill to pass through, facilitating core sampling. The base 8 and the splash guard form a bucket-like structure. The base 8 is in close contact with the road surface, which can retain as much water generated during drilling as possible in the water storage space formed by the base and the splash guard. The wastewater collector 7 can be a plastic bucket or a metal box. In this embodiment, it is preferably a hollow bladder supported by rubber. The hollow bladder is connected to the splash guard via a drain pipe 6 supported by a plastic hose. A switch is provided at the connection between the hollow bladder and the drain pipe. When the wastewater is collected, the switch is closed to prevent the wastewater from flowing out. In addition, when the water level in the splash guard and the hollow bladder are level and there is no backflow, the hollow bladder can be placed at a position lower than the splash guard by extending the length of the drain pipe.
[0026] In this embodiment, the movable guide rail 9 can be a round tube or a linear guide rail, and its function is to provide guidance for the core drill. When the moving guide rail 9 is a round tube, the core drill is inserted into the round tube. By manually pressing down the core drill, the core drill moves inside the round tube to achieve drilling and core extraction. At this time, the bottom of the round tube is a certain distance from the base. The round tube is fixedly connected to the inner wall of the splash guard by the spoke-shaped support rod.
[0027] When the linear guide 9 is moved, the linear guide is fixedly connected to the inner wall of the splash guard through the spoke-shaped support rod. The entire core extractor is fixed on the slide surface of the linear guide. By manually pressing down on the core extractor, the core drill moves down to achieve core extraction.
[0028] The preferred splash guard 1 has a water-absorbing sponge 3 on its wall and an elongated hole in its wall. The sponge is pressed into the end of the handle 2 by two nuts 4. The handle is fixed in the elongated hole by a nut 4 on the outside of the splash guard. When the nut 4 on the outside of the splash guard is adjusted, the water-absorbing sponge can move up and down along the splash guard. The water-absorbing sponge can absorb and temporarily store excess wastewater. After the core is taken, it is cleaned by squeezing, which improves the efficiency of wastewater treatment and prevents wastewater from flowing out from the hole where the base and the core drill meet. At the same time, the sponge can buffer the impact of wastewater and debris on the splash guard, reduce noise, and improve working conditions.
[0029] Example 2: Based on Example 1, a spiral separator is provided between the absorbent sponge 3 and the core drill 17. The spiral separator includes a conical permeable plate 19, and a conical spiral shaft 16 is provided on the inner side of the permeable plate 19. The conical permeable plate 19 and the conical spiral shaft 16 are coaxial. The center of the conical spiral shaft 16 is provided with the moving guide rail 9 through the connecting seat 23. In this example, the moving guide rail 9 is a cylinder. Two limiting guide grooves 21 are symmetrically provided on the inner side of the cylinder. The limiting guide grooves 21 are in the same direction as the axis of the cylinder. The core drill 17 includes a drill core 1701 for accommodating the core sample and a drill bit 1702 for cutting and drilling the road surface. The bottom of the connecting seat 23 is connected to a mud-throwing wheel 18 with the opposite rotation direction to the conical spiral shaft 16 through a bearing. The core drill 17 is also provided with a concentric outer cylinder 13 and an inner shaft 14 with opposite rotation directions. The outer cylinder 13 and the inner shaft 14 are driven by an opposite-direction driver 12. The outer cylinder 13 is connected to the movable guide rail 9, driving the conical spiral shaft mud-throwing wheel to rotate; specifically, in this embodiment, the movable guide rail 9 is a cylinder, and two limiting guide grooves 21 are symmetrically provided on the inner side of the cylinder, the limiting guide grooves 21 are in the same direction as the axis of the cylinder; the outer cylinder 13 is provided with an outer cylinder connecting part 1215 at the end, the outer cylinder connecting part 1215 is divided into a top connecting part and a bottom connecting part, the bottom connecting part is provided with a limiting guide post 22, the limiting guide post 22 cooperates with the limiting guide groove 21, and can slide up and down in the limiting guide groove 21; The inner shaft 14 is connected to the mud-throwing wheel 18 and drives the mud-throwing wheel to rotate; specifically, the inner shaft 14 is also provided with an inner shaft connecting part 1214, which is also divided into a top connecting end and a bottom connecting end. The bottom connecting end is fixedly connected to the top of the core of the core drill 17 through a threaded connection. For the bottom of the connecting seat 23, which is connected by a bearing to a mud-throwing wheel 18 that rotates in the opposite direction to the conical spiral shaft 16, the present invention provides two implementation structures for achieving this opposite rotation direction: The first type of reverse-drive includes a first motor and a second motor. The first motor drives the inner shaft 14, and the second motor drives the outer cylinder 13. Specifically, the output shaft of the first motor is equipped with a bevel gear, which meshes with the end bevel gear of the inner shaft 14 to drive the inner shaft 14 to rotate. The output shaft of the second motor is also equipped with a bevel gear, which meshes with the bevel gear at the top of the outer cylinder 13 to drive the outer cylinder 13 to rotate. The inner shaft and the outer cylinder rotate in opposite directions. The advantage of this is that different rotational speeds can be achieved when the inner shaft and the outer cylinder rotate in opposite directions, and the rotational speed can also be adjusted when the rotational speeds are different.
[0030] In the second embodiment, the reverse-direction actuator 12 includes a drive motor 11, the output shaft of which is fixedly connected to a drive shaft 1201. The drive shaft 1201 is fixed within the side wall of the reverse-direction actuator 12 via two first bearings 1202. A third bevel gear 1219 is fixed to the end of the drive shaft 1201. The third bevel gear 1219 meshes with a first bevel gear 1207 and a second bevel gear 1209, respectively. The first bevel gear 1207 and the second bevel gear 1209 are coaxial. The gears 1207 and 1209 are arranged opposite each other on the toothed side. The first bevel gear 1207 is fixedly connected to the inner shaft 14, and the second bevel gear 1209 is fixedly connected to the outer cylinder 13. The reverse drive 12 includes a first cavity 1208 and a second cavity 1210 located below the first cavity 1208. A second bearing 1203 is provided on the top of the first cavity 1218. The second bearing 1203 is fixed to the top of the first cavity 1208 by a bearing end cover 1204. The inner ring of the second bearing 1203 is connected to the top of the inner shaft 14. The end of the spindle 1205 is fixedly connected to the first bevel gear 1207, and the spindle 1205 is inserted into the center of the first bevel gear 1207 and fixedly connected to the first bevel gear 1207. The bottom of the spindle 1205 is fixedly connected to the inner shaft connecting part 14 of the inner shaft 14 by threads. The spindle 1205 passes through the center of the second bevel gear 1209. The second bevel gear 1209 is fixedly connected to the top of the outer sleeve 1218 at the top of the outer cylinder 13. The outer sleeve 1218 is sleeved on the outside of the spindle 1205 and fixed in the second cavity 1210 by the third bearing 1213. The bottom of the outer sleeve 1218 is fixedly connected to the outer cylinder connecting part 1215 of the outer cylinder 13 by the connecting flange 1217 and the connection is fastened by the connecting bolt 1216. When the drive motor 11 rotates, the first bevel gear drives the second bevel gear and the third bevel gear to rotate. This arrangement makes the second bevel gear and the third bevel gear rotate in opposite directions, which also drives the inner shaft 14 and the outer cylinder 13 to rotate in opposite directions.
[0031] The first bearing 1202, the second bearing 1203 and the third bearing 1213 are all angular contact bearings.
[0032] The bottom of the second cavity 1210 is also provided with a connecting base 1211. The second base 1211 is fixed to the top surface of the slide top plate 1212 of the slide table 10 by bolts. The center of the slide top plate 1212 is provided with a through hole, which facilitates the inner shaft 14 and the outer cylinder 13 to pass through. The slide table 10 is fitted with the inner wall of the splash shield 1. The part of the splash shield 1 that fits with the slide table 10 is provided with a long guide groove. The part where the slide table fits with the guide groove is provided with a protrusion. The protrusion can slide up and down along the guide groove, which satisfies the requirement that the slide table slides up and down along the top of the splash shield while preventing relative rotation between the slide table 10 and the splash shield 1.
[0033] The conical spiral shaft 16 is a hollow conical cylinder with an opening at its pointed end. The connecting seat 23 is fixedly connected inside the opening. The outer surface of the conical cylinder has spiral blades, namely the first spiral blade 1601. The first spiral blade 1601 spirals upwards around the outer surface of the conical cylinder to form a conical auger. The outer side of the first spiral blade 1601 has no pressure contact with the inner side of the conical permeable plate 19. The permeable plate has a three-layer structure. The layer closest to the outer side of the first spiral blade 1601 is a wear-resistant layer with a mesh structure, facilitating the permeability of wastewater under centrifugal force. Simultaneously, debris is left behind and transported to the top by the first helical blade 1601, entering the sludge storage chamber 24. The second layer is a shock-absorbing layer, made of a woven mesh soaked in shear thickening fluid STF and pressed together. The non-Newtonian fluid properties of shear thickening fluid STF are common knowledge and will not be elaborated here. Through the shock-absorbing and eliminating properties of shear thickening fluid STF, it absorbs the impact force from the rotation of the first helical blade 1601 and the mixture of wastewater and debris, thus reducing equipment noise. The third layer, furthest from the first helical blade 1601, is a support layer made of steel plate. The steel plate storage cabinet has a matrix of permeable holes to facilitate wastewater passage.
[0034] The bottom of the connecting seat 23 is provided with an end face bearing, and a tripod is connected to the bottom of the end face bearing. The three legs of the tripod are connected to the bottom opening of the conical permeable plate 19 and fixed to the top surface of the base. The mud-throwing wheel 18 is located inside the end face bearing and is connected to the center hole of the connecting seat through an angular contact bearing.
[0035] The center of the mud-throwing wheel 18 is a stepped hole, the bottom diameter of which is larger than the top diameter. The bottom of the stepped hole is fixed with the angular contact bearing. The top wall of the stepped hole has several limiting holes evenly distributed around its circumference, perpendicular to the axis of the stepped hole. A spring and a steel ball are installed in the limiting holes. Under normal conditions, a portion of the steel ball is exposed inside the stepped hole under the pressure of the spring. The distance from the apex of the exposed portion to the center of the steel ball is less than the diameter of the steel ball. The wall of the core drill has several long grooves along the axis of the core drill. The positions of the long grooves correspond one-to-one with the positions of the limiting holes. When the drill bit of the core drill enters the stepped hole of the mud-throwing wheel, the steel ball engages with the long grooves, driving the mud-throwing wheel to rotate.
[0036] When the coring machine is manually pressed downwards, the slide 10 slides downwards along the inner guide wall 25 inside the splash guard 1. Simultaneously, the limiting guide post 22 slides within the limiting guide groove 21, and the steel ball slides within the long groove. This achieves the downward movement of the coring drill, while the moving guide rail 9 and the mud-throwing wheel 18 remain stationary. The sliding of the limiting guide post 22 within the limiting guide groove 21 and the steel ball within the long groove also drive the conical spiral shaft 16 and the mud-throwing wheel 18 to rotate. Since the inner shaft 14 and the outer cylinder 1 rotate in opposite directions, the mud-throwing wheel 18 and the conical spiral shaft 16 rotate in opposite directions. The mud-throwing wheel also has spiral blades and its conveying direction is upwards. When the mud-throwing wheel 18 rotates, the lubricating water and debris from the coring drill are drawn out from... The core drill is thrown out at high speed at the contact point with the bottom surface and enters the rotation range of the spiral blades of the mud-spinning wheel 18. The blades of the rotating mud-spinning wheel 18 are conveyed upward and thrown to the bottom of the permeable plate 19. The bottom of the conical spiral shaft 16 is provided with at least a number of notches, which are used for wastewater and debris to enter between the first spiral blade 1601 and the permeable plate 19 under the swing of the mud-spinning wheel 18. The wastewater and debris are spirally conveyed by the first spiral blade 1601. The wastewater and debris rotate and rise inside the permeable plate 19. Under the action of centrifugal force, the debris and wastewater are separated. The wastewater enters the water storage chamber 20 after passing through the permeable plate. The wall of the water storage chamber 20 is provided with water-absorbing sponge 3. The bottom of the water storage chamber 20 is provided with a drain hole 5. The drain hole 5 is connected to the wastewater collector through a drain pipe to realize wastewater collection.
[0037] Furthermore, the top of the conical spiral shaft 16 is provided with an arc-shaped guide plate 15, which guides the drill debris transported by the conical spiral shaft 6 to fall into the mud storage chamber 24 inside the conical spiral shaft.
[0038] Furthermore, due to the installation of the mud-throwing wheel 18, the bottom of the spiral blades of the mud-throwing wheel 18 is flush with the road surface. When the mixture of splashed wastewater and debris does not enter the permeable plate, it will be scraped up again by the bottom of the spiral blades of the mud-throwing wheel 18. Under the spiral conveying and centrifugal force of the spiral blades, it will re-enter the splashing state and enter the bottom of the permeable plate 19. Through the spiral conveying of the first spiral blade 1601, the wastewater and debris will rotate and spiral upward inside the permeable plate 19, achieving the purpose of thoroughly cleaning the wastewater and debris.
[0039] Driven by a counter-rotating actuator, the sludge wheel ejects the mixture of wastewater and debris splashed from the borehole upwards into the conical spiral area of the sludge wheel, while the conical spiral shaft rotates in the opposite direction. The spiral blades on its surface form a continuous spiral upward channel inside the permeable plate. The two opposing rotational movements generate a strong shearing and agitation effect in the junction area, which can effectively prevent material deposition and blockage.
[0040] The foregoing has broadly outlined some aspects and features of the various embodiments and should be interpreted as merely illustrative of potential applications. Other beneficial results can be obtained by applying the disclosed information in different ways or by combining aspects of the disclosed embodiments. Further aspects and a more complete understanding can be obtained based on the detailed description of exemplary embodiments with reference to the accompanying drawings, within the scope defined by the claims.
[0041] The above embodiments provide a detailed description of the present invention. Of course, the above description is not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, reductions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.
Claims
1. A coring machine anti-contamination device, comprising: The anti-pollution device comprises a splash-proof cylinder and a wastewater collector, which are communicated through a drain pipe; the bottom of the splash-proof cylinder is provided with a base, and the middle center of the splash-proof cylinder is provided with a moving guide rail, and the moving guide rail is slidably provided with the core drill; the core drill can slide up and down along the moving rail; when the core drill slides downward, the core drill drills a core on the road surface, and the cooling and lubricating water used in the drilling process and the drilling debris are thrown out by the rotating core drill, collected by the inner wall of the splash-proof cylinder, and then enter the wastewater collector through the drain pipe.
2. The anti-pollution device for a road surface coring machine according to claim 1, characterized in that, The middle inner wall of the splash-proof cylinder is provided with a water-absorbing sponge for absorbing the splashing cooling and lubricating water and the drilling debris.
3. The anti-contamination device for a pavement coring machine of claim 2, wherein, The water-absorbing sponge and the core drill are provided with a spiral separator, the spiral separator comprises a tapered water-permeable plate, the inner side of the water-permeable plate is provided with a coaxial tapered spiral shaft, the center of the tapered spiral shaft is provided with the moving guide rail through a connecting seat, the bottom of the connecting seat is connected with a mud throwing wheel which is opposite in rotation direction to the tapered spiral shaft through a bearing; the core drill is provided with a concentric outer cylinder and an inner shaft which are opposite in rotation direction, and the outer cylinder and the inner shaft are driven by a reverse driving device; the outer cylinder is connected with the moving guide rail to drive the tapered spiral shaft and the mud throwing wheel to rotate; the inner shaft is connected with the mud throwing wheel to drive the mud throwing wheel to rotate.
4. The anti-contamination device for a pavement coring machine of claim 3, wherein, The reverse driving device comprises a first motor and a second motor, the first motor drives the inner shaft, and the second motor drives the outer cylinder.
5. The anti-contamination device for a pavement coring machine of claim 3, wherein, The reverse driving device comprises a driving motor, the output shaft of the driving motor is fixedly connected with a driving shaft, the end of the driving shaft is fixedly provided with a third bevel gear, the third bevel gear is meshed with a first bevel gear and a second bevel gear respectively, the first bevel gear and the second bevel gear are coaxial and oppositely arranged on one side provided with teeth, the first bevel gear is fixedly connected with the inner shaft, and the second bevel gear is fixedly connected with the outer cylinder.
6. A pollution protection device for a road core drill according to any one of claims 3 to 5, characterized in that The tapered spiral shaft is a hollow conical cylinder, the tip end of the conical cylinder is provided with an opening, the opening is fixedly connected with the connecting seat, the outer side of the conical cylinder is provided with helical blades to form a tapered auger, and the outer side of the helical blades is in pressureless contact with the inner side of the tapered water-permeable plate.
7. The anti-contamination device for a pavement coring machine of claim 6, wherein, The bottom of the connecting seat is provided with a face shaft bearing, the bottom of the face shaft bearing is connected with a tripod, the three legs of the tripod are connected with the bottom opening of the tapered water-permeable plate and fixed on the top surface of the base, and the mud throwing wheel is arranged in the face shaft bearing and connected with the center hole of the connecting seat through an angular contact bearing.
8. The anti-contamination device for a pavement coring machine of claim 7, wherein, The center of the mud throwing wheel is a stepped hole, the diameter of the bottom of the stepped hole is greater than the diameter of the top of the stepped hole, the bottom of the stepped hole is fixedly provided with the angular contact bearing, the top hole wall of the stepped hole is uniformly provided with a plurality of limiting holes which are perpendicular to the axis of the stepped hole, a spring and a steel ball are arranged in the limiting hole, under normal circumstances, a part of the steel ball is exposed in the stepped hole under the pressure of the spring, the distance between the top of the exposed part and the center of the steel ball is less than the diameter of the steel ball, and the wall of the core drill is provided with a plurality of long grooves which are along the axial direction of the core drill, the positions of the long grooves correspond to the positions of the limiting holes one by one; when the drill bit of the core drill enters the stepped hole of the mud throwing wheel, the steel ball cooperates with the long groove to drive the mud throwing wheel to rotate.
9. The anti-contamination device for a pavement coring machine of claim 8, wherein, The top of the conical spiral shaft is provided with an arc-shaped guide plate, which guides the drilling debris transported by the conical spiral shaft to fall into the mud storage cavity inside the conical spiral shaft.