CN115233645A - Core drill and core machine are got to bituminous paving - Google Patents

Core drill and core machine are got to bituminous paving Download PDF

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Publication number
CN115233645A
CN115233645A CN202210945601.4A CN202210945601A CN115233645A CN 115233645 A CN115233645 A CN 115233645A CN 202210945601 A CN202210945601 A CN 202210945601A CN 115233645 A CN115233645 A CN 115233645A
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CN
China
Prior art keywords
plate
moving
core
clamping
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210945601.4A
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Chinese (zh)
Inventor
徐金玉
汪昊
韩超
马涛
宗海
张伟光
安丰伟
韦武举
程树铭
夏永
陈宁
何嘉铭
袁梦
余功新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Highway Development Group Co ltd
Southeast University
JSTI Group Co Ltd
Original Assignee
Nanjing Highway Development Group Co ltd
Southeast University
JSTI Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Highway Development Group Co ltd, Southeast University, JSTI Group Co Ltd filed Critical Nanjing Highway Development Group Co ltd
Priority to CN202210945601.4A priority Critical patent/CN115233645A/en
Publication of CN115233645A publication Critical patent/CN115233645A/en
Priority to PCT/CN2022/133638 priority patent/WO2024031871A1/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00Investigation of foundation soil in situ
    • E02D1/02Investigation of foundation soil in situ before construction work
    • E02D1/04Sampling of soil

Abstract

The invention relates to the technical field of core drilling equipment, and discloses a core drilling bit and a core drilling machine for an asphalt pavement, which comprise: the core taking mechanism comprises a moving mechanism, a core taking mechanism for drilling and coring, a plate taking mechanism for sampling a track plate on a road surface and a clamping mechanism for taking a track plate sample out, wherein a core taking barrel of the core taking mechanism is provided with a moving groove on the inner wall of the core taking barrel, the moving groove is in sliding connection with a left inner moving plate, the core taking mechanism is arranged, the movable inner moving plate is arranged in the core taking mechanism, after the sample is taken out from the ground, the inner moving plate can be moved to leave a fall on the inner wall of the core taking barrel, so that the sample can fall off from the core taking barrel conveniently, the plate taking mechanism is arranged, the track plates with different specifications can be cut through a cutting piece capable of adjusting the distance between the plate taking mechanism and a rotating motor, the track plate is taken out from the road surface through the clamping mechanism, the moving mechanism can move the plate taking mechanism at fixed points at equal intervals, automatic positioning and automatic operation during coring are realized, and the core taking efficiency is improved.

Description

Core drill and core machine are got to bituminous paving
Technical Field
The invention relates to the technical field of core drilling equipment, in particular to a core drilling drill for an asphalt pavement and a core drilling machine.
Background
Asphalt pavement refers to various types of pavement paved by mixing asphalt materials in mineral materials, asphalt binder improves the ability of paving aggregate to resist driving and damage of natural factors to the pavement, and makes the pavement smooth, dustless, waterproof and durable, and in the daily maintenance process, parameters such as compactness, structural layer thickness and the like of the pavement need to be obtained. In order to obtain these parameters, it is common in the prior art to obtain a core sample of the asphalt pavement by drilling and coring. The coring method generally uses a coring bit on a coring machine to drill and divide an asphalt pavement to obtain a core sample, but the existing coring bit has the following technical problems during coring:
1. because the core sample has the same diameter as the inner wall of the core drill, the core sample is likely to become stuck inside the core drill. In order to take out a core sample clamped in the core drill, a worker usually uses a small hammer to knock the outer wall of the periphery of the core drill, the core sample is separated from the inner wall of the core drill by a gap generated by knocking, and then the core sample smoothly slides out of the core drill, but the force at each part is difficult to control uniformly in the process of knocking the core drill, and the strength of the core sample on an asphalt pavement is usually weaker, so that the core sample is easy to break in the process of taking out the core drill because only part of the core sample is separated from the inner wall of the core drill, and subsequent detection is influenced;
2. according to the existing asphalt coring specification, a plurality of points are generally needed to core the asphalt pavement, and the existing core taking machine is not provided with an automatic moving device, so that the core taking machine needs to be manually moved to the corresponding coring points to take cores, and the core taking machine needs to be positioned according to the asphalt coring specification in the moving process, so that the process is complicated;
3. because the core drill of current coring machine uses and takes a sample, can only take out the core appearance of less size during the sample, most of when needing to take out road surface rut board samples through cutting machine, pneumatic pick etc. to the road surface, can not take out road surface rut board completely moreover, and operation process is comparatively loaded down with trivial details, and it is comparatively inconvenient to use.
Therefore, it is necessary to provide a core drill and a core machine for asphalt pavement to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a core drill and a core machine for an asphalt pavement.
The invention provides a core drill and core drill for asphalt pavement, comprising: the movable mechanism can be used for a core taking mechanism for drilling and coring, a plate taking mechanism for sampling a road rut plate and a clamping mechanism for taking out a rut plate sample;
the core drilling machine is characterized in that the moving mechanism comprises a moving plate, a left notch and a right notch which are used for the core drilling mechanism and the core drilling mechanism to move up and down are respectively arranged at two ends of the moving plate, a rotating wheel hole is formed in the bottom of the moving plate, the inner wall of the rotating wheel hole is rotatably connected with a rotating wheel through a transmission shaft, the transmission shaft is connected with a moving motor through a transmission mechanism, and the moving motor is placed in a motor groove in the bottom of the moving plate.
The core taking mechanism comprises a core taking barrel with a cutting tooth made of thin-wall diamond materials at the bottom, a connecting column with a threaded hole is arranged at the top of the core taking barrel and is connected with the output end of a core taking motor through the connecting column, the core taking motor is placed in a motor shell, a moving groove is formed in the inner wall of the core taking barrel, a plurality of opposite left sliding grooves and right sliding grooves are formed in the two ends of the inner wall of the moving groove, the left sliding grooves and the right sliding grooves are respectively connected with a left sliding block and a right sliding block in a sliding mode, the left sliding block and the right sliding block are fixed on the end faces of the two ends of an arc-shaped inner moving plate, the end face of the inner moving plate is fixedly connected with an outer moving rod in a sliding mode, moving holes are formed in the end face, facing to the outer side, of the outer moving rod is arranged on the outer wall of the core taking barrel, the top of the moving groove is communicated with the bottom of a baffle hole in the core taking barrel, the top of the baffle hole is communicated with the top of the core taking barrel, the baffle hole is connected with a baffle in a sliding mode, the top of the baffle hole is fixedly connected with a baffle, the top of the baffle is connected with the baffle, the top of the baffle is fixedly connected with a water inlet of a water tank of which is fixedly arranged on the water inlet of a water tank, a water inlet of a water pump is arranged on the water tank, a water inlet of a water tank, and a water tank, a water inlet of the water pump is arranged on the water tank, and a water outlet of the water tank, and a water tank, a water outlet of the water pump is arranged on the water tank;
the plate taking mechanism comprises a cutting plate, the axis sleeve of the cutting plate is connected to the output end of a cutting motor, the cutting motor is fixed on a cutting moving plate, the top of the cutting moving plate is connected with an electric slide rail through a slide block, the top of the electric slide rail is connected to the bottom of a rotating plate through a bolt, one end of the rotating plate is fixedly connected with the output end of a rotating motor, the rotating motor is fixedly connected with a rotating moving plate, the rotating moving plate is fixedly connected with an electric hydraulic device, and the electric hydraulic device is fixedly connected with the top of the moving plate through a connecting frame;
the clamping mechanism comprises a plurality of clamping plates, the thickness of each clamping plate is smaller than that of each cutting blade, one end of each clamping plate is fixedly connected with a clamping moving rod, the clamping moving rods penetrate through clamping moving holes to be connected with a connecting piece, the clamping moving holes are formed in arc-shaped limiting rings, the inner walls of the limiting rings are fixedly connected with the outer wall of each clamping moving cylinder through limiting connecting rods, the inner wall of each connecting piece is rotatably connected with a rotating wheel, the rotating wheel is rotatably connected with a clamping moving block, the cross section of each clamping moving block is in a right-angled triangle shape, the clamping moving blocks are welded on the end face of each clamping moving cylinder, the clamping moving blocks are arranged around the clamping moving cylinders in an equidistant circle, the top of each clamping moving cylinder is fixedly connected with a clamping moving plate, each clamping moving plate is fixedly connected with an electric telescopic rod, the end face of the electric telescopic rod is connected with an electric right sliding block, the electric right sliding block is slidably connected with a right longitudinal electric sliding rail, and the right longitudinal electric sliding rail is fixedly connected with the top of the clamping moving plate.
Preferably, the core taking barrel is internally connected with a stripping push plate in a sliding manner, the top of the stripping push plate is fixedly connected with an n-shaped push plate rod, the outer wall of the push plate rod is connected with a push plate hole at the top of the core taking barrel in a sliding manner, and the top of the push plate rod is provided with a through hole.
Preferably, the end faces of the two ends of the electric slide rail are respectively provided with a left slide rail hole and a right slide rail hole, the left slide rail hole and the right slide rail hole are respectively and movably connected with a left slide rail baffle and a right slide rail baffle, and the end faces of the edges of the left slide rail baffle and the right slide rail baffle are located right above the movable plate on the two sides of the right notch.
Preferably, a plurality of springs are arranged between the opposite end faces of the inner moving plate and the moving groove, the springs are symmetrically arranged in two rows, two ends of each spring are fixedly connected with the inner walls of the inner moving plate and the moving groove respectively, the outer moving rod is in a shape like a ']', and the outer connecting holes are matched with the outer moving rod in shape.
Preferably, the link includes solid fixed ring, gu fixed ring cover connects the outer wall at electro-hydraulic means, gu a plurality of connecting rods of fixed ring's terminal surface fixed connection are a circumference around solid fixed ring and arrange between the connecting rod on solid fixed ring's outer wall, the connecting plate that the bottom fixed connection level of connecting rod was placed, be equipped with the connection screw on the connecting plate, be equipped with on the outer movable plate of right side breach and connect screw matched with fixed screw
Preferably, the bottom of the clamping moving cylinder is of an open structure, the electric hydraulic device is located inside the clamping moving cylinder, the axis of the electric hydraulic device and the axis of the clamping moving cylinder are located on the same vertical line, a plurality of clamping through holes are formed in the bottom of the clamping moving cylinder, and the width of each clamping through hole is larger than that of each connecting rod.
Preferably, the top of movable plate is equipped with the water storage box, the water storage water inlet of water storage box passes through the water outlet end of water storage water inlet pipe connection front water pump, the apopore of water tank is connected to the end of intaking of front water pump, the water storage delivery port of water storage box passes through the water inlet end of water storage water outlet pipe connection rear water pump, the water inlet hole that the water outlet end of rear water pump is connected the water tank links to each other.
Preferably, the electric slide rail is arranged at the bottom of the rotating plate in a staggered manner, and the vertical distance between one end of the electric slide rail close to the rotating motor and the rotating motor is greater than that between one end of the rotating plate close to the rotating motor and the rotating motor.
Preferably, a U-shaped placing barrel is arranged on one side of the coring barrel, the placing barrel is connected with the inner wall of the left notch through a placing connecting plate, the placing barrel is composed of the lower portion in the transverse direction and the left portion and the right portion in the vertical direction, the lower portion, the left portion and the right portion are communicated with each other, the bottom and the end face of the lower portion are respectively provided with a discharge hole and a material pushing hole, the top of the left portion right above the discharge hole is provided with a material feeding hole, the inner walls of the left portion and the lower portion are respectively in sliding connection with a material pushing plate and a material feeding plate, the material pushing plate and the material feeding plate are respectively and fixedly connected with a material pushing electric telescopic rod and a material feeding electric telescopic rod, and the material pushing electric telescopic rod and the material feeding electric telescopic rod are respectively connected with the inner wall of the left notch through the material pushing connecting plate and the material feeding connecting plate.
Compared with the related art, the core drill and the core extractor for the asphalt pavement provided by the invention have the following beneficial effects:
1. according to the invention, the core taking mechanism is arranged, the movable inner moving plate is arranged in the core taking mechanism, after a sample is taken out from the ground, the inner moving plate can be moved to leave a fall on the inner wall of the core taking barrel, so that the sample can conveniently fall off from the core taking barrel, the core taking mechanism is arranged, and rut plates with different specifications can be cut by a cutting piece capable of adjusting the distance between the cutting piece and a rotating motor;
2. according to the invention, by arranging the stripping push plate, when a sample is taken out of the coring barrel, the stripping push plate can move towards the inner side of the moving groove when the inner moving plate moves to leave a gap with the sample, and the sample does not fall off from the coring barrel due to friction force;
3. according to the invention, the electro-hydraulic device is placed on the inner side of the clamping moving cylinder, the electro-hydraulic device can be protected by the clamping moving cylinder, and the axis of the clamping moving cylinder and the axis of the electro-hydraulic device are positioned on the same vertical line, so that the circle center of a circle formed by the clamping plates and the circle center of a circle formed by the cutting blades can be ensured to be positioned on the same vertical line, further, when the clamping plates are clamped, all the clamping plates can be in close contact with the outer wall of the cut rutting plate, and further, the rutting plate can be better taken out.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of a core drill and core extractor for asphalt pavement according to the present invention;
FIG. 2 is a schematic view of another angle shown in FIG. 1;
FIG. 3 is a schematic structural view of the coring mechanism shown in FIG. 1;
FIG. 4 is a schematic structural view of the moving mechanism and the plate-taking mechanism shown in FIG. 1;
FIG. 5 is a schematic view of a connecting structure of the coring mechanism, the clamping mechanism and the moving plate shown in FIG. 1;
FIG. 6 is a schematic view of the internal structure of the core barrel of FIG. 1;
FIG. 7 is a schematic view of the clamping mechanism shown in FIG. 1;
FIG. 8 is a schematic view of the placement cartridge of FIG. 1;
reference numbers in the figures: 1. a moving mechanism; 101. moving the plate; 102. a rotating wheel; 103. fixing screw holes; 104. a right notch; 105. a left notch; 2. a core taking mechanism; 201. a core taking cylinder; 202. cutting teeth; 203. an inner moving plate; 204. a left slider; 205. a right slider; 206. moving the rod outwards; 207. moving the hole; 208. a baffle plate; 209. a baffle lever; 210. a baffle hole; 211. a push plate rod; 212. pushing the plate hole; 213. a through hole; 214. a motor housing; 215. a water inlet; 216. sampling and moving a plate; 217. a left longitudinal electric slide rail; 218. a moving groove; 219. a left chute; 220. a right chute; 221. an outer connecting hole; 3. a plate taking mechanism; 301. cutting the slices; 302. cutting the motor; 303. cutting the moving plate; 304. an electric slide rail; 305. a rotating plate; 306. a rotating electric machine; 307. rotating the moving plate; 308. an electro-hydraulic device; 309. a fixing ring; 310. a connecting rod; 311. a connecting plate; 312. connecting screw holes; 313. a left slide rail baffle; 314. a right slide rail baffle; 4. a clamping mechanism; 401. clamping the movable cylinder; 402. clamping a moving block; 403. clamping the rotating wheel; 404. a connecting member; 405. clamping the movable rod; 406. a clamping plate; 407. clamping the moving hole; 408. a limiting ring; 409. a limit connecting rod; 410. clamping the through hole; 411. clamping the moving plate; 412. an electric telescopic rod; 413. the telescopic rod connecting plate; 414. a right longitudinal electric slide rail; 5. a water storage box; 6. pulling a plate; 7. a water tank; 8. a pull rod; 9. placing a cylinder; 901. a left portion; 902. a right portion; 903. a lower portion; 904. a feed port; 905. a feeding hole; 906. feeding an electric telescopic rod; 907. a feeding connecting plate; 908. a material pushing hole; 909. a material pushing plate; 910. pushing an electric telescopic rod; 911. a pushing connecting plate; 10. a rear water pump; 11. a water storage and outlet pipe; 12. a water pump; 13. a water inlet pipe; 14. a front water pump; 15. a water storage and inlet pipe; 16. placing the connecting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1 to 8, the present invention provides an asphalt pavement core drill and core drill, including: the method comprises the following steps: the movable moving mechanism 1 can be used for a core taking mechanism 2 for drilling and coring, a plate taking mechanism 3 for sampling a track plate on a road surface and a clamping mechanism 4 for taking out a track plate sample;
the moving mechanism 1 comprises a moving plate 101, a left notch 105 and a right notch 104 which are used for the core taking mechanism 2 and the plate taking mechanism 3 to move up and down are respectively arranged at two ends of the moving plate 101, a rotating wheel hole is formed in the bottom of the moving plate 101, the inner wall of the rotating wheel hole is rotatably connected with a rotating wheel 102 through a transmission shaft, the transmission shaft is connected with a moving motor through a transmission mechanism, and the moving motor is placed in a motor groove in the bottom of the moving plate 101.
The coring mechanism 2 comprises a coring barrel 201 with a cutting tooth 202 made of thin-wall diamond material at the bottom, a connecting column with a threaded hole is arranged at the top of the coring barrel 201, and is connected with the output end of a coring motor through a connecting column, the coring motor is placed in the motor casing 214, the inner wall of the coring barrel 201 is provided with a moving groove 218, two ends of the inner wall of the moving groove 218 are provided with a plurality of opposite left sliding chutes 219 and right sliding chutes 220, the left sliding chute 219 and the right sliding chute 220 are respectively connected with the left sliding block 204 and the right sliding block 205 in a sliding manner, the left slider 204 and the right slider 205 are fixed on the end surfaces of two ends of the arc-shaped inner moving plate 203, the end surface of the inner moving plate 203 is fixedly connected with an outer moving rod 206 which is connected with an outer connecting hole 221 in a sliding way, the end surface of the outer moving rod 206 facing to the outside is provided with a moving hole 207, the outer connecting hole 221 is arranged on the outer wall of the coring barrel 201, the top of the moving groove 218 communicates with the bottom of the baffle hole 210 inside the core barrel 201, the top of the baffle hole 210 communicates with the top of the core barrel 201, the baffle hole 210 is connected with the baffle plate 208 in a sliding way, the top of the baffle plate 208 is fixedly connected with the baffle rod 209, the end surface of the motor shell 214 is fixedly connected with a sampling moving plate 216, one end of the sampling moving plate 216 is fixedly connected with a left electric slide block, the left electric slide block is connected with a left longitudinal electric slide rail 217 in a sliding way, the bottom of the left longitudinal electric slide rail 217 is fixedly connected with the top of the moving plate 101, the top of the motor casing 214 is provided with a water inlet 215, the water inlet 215 is connected with the water outlet end of the water pump 12 through a water inlet pipe 13, the inlet end of the water pump 12 is connected with the water outlet of the water tank 7, the water tank 7 is placed on a pull plate 6 with a moving wheel at the bottom, and the pull plate 6 is fixedly connected with one end of a moving plate 101 through a pull rod 8;
the plate taking mechanism 3 comprises a cutting blade 301, the axis of the cutting blade 301 is sleeved and connected to the output end of a cutting motor 302, the cutting motor 302 is fixed on a cutting moving plate 303, the top of the cutting moving plate 303 is connected with an electric slide rail 304 through a slide block, the top of the electric slide rail 304 is connected to the bottom of a rotating plate 305 through a bolt, one end of the rotating plate 305 is fixedly connected with the output end of a rotating motor 306, the rotating motor 306 is fixedly connected with a rotating moving plate 307, the rotating moving plate 307 is fixedly connected with an electric hydraulic device 308, and the electric hydraulic device 308 is fixedly connected with the top of the moving plate 101 through a connecting frame;
the clamping mechanism 4 comprises a plurality of clamping plates 406, the thickness of each clamping plate 406 is smaller than that of the cutting blade 301, one end of each clamping plate 406 is fixedly connected with a clamping moving rod 405, the clamping moving rod 405 penetrates through a clamping moving hole 407 to be connected with a connecting piece 404, the clamping moving hole 407 is arranged on an arc-shaped limiting ring 408, the inner wall of the limiting ring 408 is fixedly connected with the outer wall of the clamping moving cylinder 401 through a limiting connecting rod 409, the inner wall of the connecting piece 404 is rotatably connected with a clamping rotating wheel 403, the clamping rotating wheel 403 is rotatably connected with a clamping moving block 402, the cross section of the clamping moving block 402 is in a right-angled triangle shape, the clamping moving block 402 is welded on the end face of the clamping moving cylinder 401, the clamping moving blocks 402 are circumferentially arranged around the clamping moving cylinder 401 at equal intervals, the top of the clamping moving plate 401 is fixedly connected with a clamping connecting plate 411, the clamping moving plate 411 is fixedly connected with an electric telescopic rod 412, the end face of the electric telescopic rod 412 is connected with an electric right sliding block, the electric right sliding block is connected with a right longitudinal electric sliding rail 414, and the right longitudinal electric moving plate 414 is fixedly connected with the top of the sliding rail 101.
It should be noted that, by arranging a corresponding displacement sensor on the moving plate 101 and selecting a transmission mechanism which can move the rotating wheel 102 in the horizontal direction and the vertical direction, the moving plate 101 is driven to move equidistantly on the asphalt pavement according to the set distance, so that the full-automatic sampling of the asphalt pavement is realized;
when the inner moving plate 203 is moved through the outer moving rod 206, the inner moving plate 203 is prevented from entering the inner side of the core barrel 201 and affecting the collection of the sample by the core barrel 201 by limiting the left chute 219 and the right chute 220, and when the inner moving plate 203 moves to the edge, the inner moving plate 203 is just flush with the inner wall of the core barrel 201, so that when the inner moving plate 203 is used, the inner moving plate 203 is prevented from entering the inner side of the core barrel 201, the collection of the sample by the core barrel 201 is affected, the end face of the baffle 208 opposite to the inner moving plate 203 is set to be a matched arc shape, the end face of the other end of the baffle 208 is matched with the inner side face of the moving groove 218, the baffle 208 can be formed between the inner moving plate 203 and the moving groove 218 by moving up and down the baffle 208, the inner moving plate 203 is prevented from moving by extrusion of the sample moving plate, and the inner moving of the core barrel 203 is further formed into the inner side of the moving groove 218, the shape of the sample is affected, and when the sample is taken out of the core barrel 201, the sample, the baffle 208 is withdrawn, the sample is moved into the outer moving hook hole 207, and moved to the moving rod 206, so that the sample moves into the inner side of the moving plate 201, and the moving plate 206, and the sample moving rod is convenient for taking out of the sample taking barrel 201;
by arranging the cutting blade 301 which moves left and right through the electric sliding rail 304, the distance between the cutting blade 301 and the rotating motor 306 can be adjusted through the movement of the electric sliding rail 304, the cutting length of the cutting blade 301 can be adjusted, the cutting blade 301 can enter the road surface below through the up-down movement of the electric hydraulic device 308, the rut plate can be cut off, the thickness of the clamping plate 406 is smaller than that of the cutting blade 301 through the arrangement of the clamping plate 406, the gap generated after the cutting blade 301 is cut can be ensured to be used for the clamping plate 406 to be put down, the clamping moving block 402 with the right-angled triangle section can move up and down through the up-down movement of the clamping moving block 402, the clamping moving rod 405 can move left and right in the clamping moving hole 407, the distance between the clamping plate 406 and the clamping moving cylinder 401 can be changed, the distance between the clamping plate 406 and the clamping moving cylinder 401 can be adjusted along with the adjustment of the distance between the cutting blade 301 and the rotating motor 306, the clamping plate 406 can be ensured to clamp the rut plate which is cut down and taken out from the ground under the drive of the right-direction electric sliding rail 414.
In the embodiment of the present invention, referring to fig. 3, a core taking barrel 201 is slidably connected with a stripping push plate, the top of the stripping push plate is fixedly connected with a "pi" shaped push plate rod 211, the outer wall of the push plate rod 211 is slidably connected with a push plate hole 212 at the top of the core taking barrel 201, and the top of the push plate rod 211 is provided with a through hole 213.
It should be noted that: by arranging the stripping push plate, when a sample is taken out from the coring barrel 201, the inner moving plate 203 can move towards the inner side of the moving groove 218, a gap is left between the inner moving plate and the sample, the sample does not fall off from the coring barrel 201 due to friction force, and at the moment, the stripping push plate can move downwards by moving the push plate rod 211 downwards, so that the sample falls off from the coring barrel 201.
In an embodiment of the present invention, referring to fig. 4, a left slide rail hole and a right slide rail hole are respectively formed on end surfaces of two ends of the electric slide rail 304, the left slide rail hole and the right slide rail hole are respectively and movably connected to a left slide rail baffle 313 and a right slide rail baffle 314, and two end surfaces of edges of the left slide rail baffle 313 and the right slide rail baffle 314 are located right above the moving plate 101 on two sides of the right notch 104.
It should be noted that: through setting up left side slide rail baffle 313 and right side slide rail baffle 314, the restriction of accessible left and right slide rail baffle guarantees that electronic slide rail 304 is located the top of movable plate 101 all the time, can choose the scope grow with the length of electronic slide rail 304 for use, then is the cutting scope grow of cutting piece 301 to restriction through left and right slide rail baffle, but the effective control depth of fall prevents that the depth of fall is too big, will cut motor 302 and ground direct contact, cause the damage to cutting motor 302.
In the embodiment of the present invention, referring to fig. 3, a plurality of springs are disposed between the opposite end surfaces of the inner moving plate 203 and the moving groove 218, the springs are symmetrically disposed in two rows, two ends of the springs are respectively fixedly connected to the inner moving plate 203 and the inner wall of the moving groove 218, the outer moving rod 206 is shaped like a "]", and the outer connecting hole 221 is shaped to match the outer moving rod 206.
It should be noted that: when the spring is in a stretching state, the left slider 204 and the right slider 205 are respectively in contact with the end surfaces of the inner sides of the left chute 219 and the right chute 220, and a fall exists between the inner moving plate 203 and the inner wall of the coring barrel 201, so that when the inner moving plate 203 returns to the original position after the baffle 208 moves upwards, a gap can be left between the sample and the inner moving plate 203, and the sample can fall off from the coring barrel 201 conveniently.
In an embodiment of the present invention, referring to fig. 4, the connecting frame includes a fixing ring 309, the fixing ring 309 is sleeved on an outer wall of the electro-hydraulic device 308, an end surface of the fixing ring 309 is fixedly connected with a plurality of connecting rods 310, the connecting rods 310 are arranged on the outer wall of the fixing ring 309 in a circumferential manner around the fixing ring 309, the bottom of the connecting rod 310 is fixedly connected with a horizontally placed connecting plate 311, the connecting plate 311 is provided with a connecting screw hole 312, and the moving plate 101 outside the right notch 104 is provided with a fixing screw hole 103 matching with the connecting screw hole 312.
It should be noted that, by providing the connection plate 311 with the connection screw hole 312 at the bottom of the connection rod 310, the connection position between the connection rod 310 and the moving plate 101 can be changed as required, and the electro-hydraulic device 308 is fixed at a suitable position, so as to meet the requirements of users.
In an embodiment of the present invention, referring to fig. 1, the bottom of the clamping moving cylinder 401 is an open structure, the electrohydraulic device 308 is located inside the clamping moving cylinder 401, and the axis of the electrohydraulic device 308 and the axis of the clamping moving cylinder 401 are located on the same vertical line, the bottom of the clamping moving cylinder 401 is provided with a plurality of clamping through holes 410, and the width of the clamping through holes 410 is greater than the width of the connecting rod 310.
It should be noted that: by placing the electro-hydraulic device 308 inside the clamping moving cylinder 401, the electro-hydraulic device 308 can be protected by the clamping moving cylinder 401, and the axis of the clamping moving cylinder 401 and the axis of the electro-hydraulic device 308 are located on the same vertical line, so that the circle center of the circle formed by the clamping plates 406 and the circle center of the circle formed by the cutting blades 301 can be located on the same vertical line, and further, when the clamping plates 406 are clamped, all the clamping plates 406 can be in close contact with the outer wall of the cut rut plate, and the rut plate can be taken out better;
in an embodiment of the present invention, referring to fig. 1 and 2, a water storage box 5 is disposed at the top of the moving plate 101, a water storage inlet of the water storage box 5 is connected to a water outlet of the front water pump 14 through a water storage inlet pipe 15, a water inlet of the front water pump 14 is connected to a water outlet of the water tank 7, a water storage outlet of the water storage box 5 is connected to a water inlet of the rear water pump 10 through a water storage outlet pipe 11, and a water outlet of the rear water pump 10 is connected to a water inlet of the water tank 7.
It should be noted that: by arranging the water storage box 5, and through the front water pump 14 and the rear water pump 10, water is injected into the water storage box 5 and pumped out, and then water is injected into the water storage box 5, pressure is applied to the movable plate 101 by the weight of the water when the movable plate 101 is used, the movable plate 101 is fixed, and the movable plate 101 is prevented from moving when the movable plate is used, so that the stability of sampling is prevented from being influenced;
in the embodiment of the present invention, referring to fig. 1, the electric slide rail 304 is disposed at the bottom of the rotating plate 305 in a staggered manner, and a vertical distance between one end of the electric slide rail 304 close to the rotating motor 306 and the rotating motor 306 is greater than a vertical distance between one end of the rotating plate 305 close to the rotating motor 306 and the rotating motor 306.
It should be noted that: by arranging the electric sliding rail 304 and the rotating plate 305 in a staggered manner, on one hand, the minimum cutting range can be determined, and the placing range is too small, so that the cutting blade 301 can be prevented from doing circular motion well when cutting operation is carried out, and on the other hand, a cutting range which is larger than the length of the electric sliding rail 304 can be obtained by adopting the electric sliding rail 304 with a shorter size;
in an embodiment of the present invention, referring to fig. 8, a U-shaped placing barrel 9 is disposed on one side of the coring barrel 201, the placing barrel 9 is connected to an inner wall of the left gap 105 through a placing connecting plate 16, the placing barrel 9 is composed of a lower portion 903 in a transverse direction and a left portion 901 and a right portion 902 in a vertical direction, the lower portion 903, the left portion 901 and the right portion 902 are communicated with each other inside, a discharge hole and a material pushing hole 908 are respectively disposed at the bottom and an end face of the lower portion 903, a material loading hole 905 is disposed at the top of the left portion 901 directly above the discharge hole, a material loading hole 904 is disposed at the top of the right portion 902, inner walls of the left portion 901 and the lower portion 903 are respectively connected to a material pushing plate 909 and a material loading plate in a sliding manner, the material pushing electric telescopic rod 910 and the material loading electric telescopic rod 906 are respectively fixedly connected to the material pushing plate 909 and the material loading electric telescopic rod 906, and the material pushing electric telescopic rod 910 and the material loading electric telescopic rod 906 are respectively connected to the inner wall of the left gap 105 through a material pushing connecting plate 911 and a material loading electric connecting plate 907.
It should be noted that: by providing a U-shaped placing barrel 9, a cover plate which can cover a drilled hole formed by drilling operation is placed inside the right portion 902 of the placing barrel 9 through the feeding hole 904, and the height of the placing barrel 9 is set to be greater than the height of the cover plate but less than twice the height of the cover plate, and further, it can be ensured that only a single cover plate is located inside the lower portion 903, and the height of the push plate 909 is less than or equal to the height of the cover plate, and the bottom is slidably connected with the bottom of the inner wall of the lower portion 903, the push plate 909 is moved by the push electric telescopic rod 910, and further the cover plate is pushed into the discharge hole, and the size of the discharge hole is consistent with the size of the cover plate, and through friction, the cover plate is just right above the discharge hole and does not fall down, and pushes the upper plate through the feed electric telescopic rod 906, the cover plate is sent out through the discharge hole to place the barrel 9, and covers the drilled hole, and a gap is left on the ground after the drilling operation, thereby tripping and affecting the vehicle operation.
The working principle of the asphalt pavement core drill and the core drill provided by the invention is as follows:
before work, an appropriate electric sliding rail 304 can be selected to be connected with the rotating plate 305 through a bolt, an electric hydraulic device 308 is fixed above the right notch 104 through a fixing ring 309, and a connecting rod 310 is connected with the corresponding position of the moving plate 101 through a connecting plate 311;
drilling operation:
before drilling, a moving distance is set through a controller, the moving plate 101 is driven to move through a moving motor, the core taking barrel 201 is driven to be right above a road surface to be sampled, water is added into the water storage box 5 through a front water pump 14 before sampling, the moving plate 101 is fixed by applying pressure through the quality of the water, the inner moving plate 203 is moved to the edge of a left chute 219 through an outer moving rod 206, a baffle 208 is moved downwards and moved between the inner moving plate 203 and a moving groove 218, a blocking effect is exerted on the inner moving plate 203, then the core taking barrel 201 is driven to move downwards through a left longitudinal electric sliding rail 217, the core taking barrel 201 is driven to rotate through the motor, and asphalt is sampled, water is fed through a water pump 12 during sampling, the outer wall of the core taking barrel 201 is cooled through water outlet of a water inlet 215, when the core taking barrel 201 rises from the ground, the baffle 208 is moved upwards, the baffle 208 moves under the return of a spring, the inner wall of the core taking barrel 203 and the inner wall of the core taking barrel 201 are left, so that a sample is convenient to fall from the inner wall of the core taking barrel 201, and the sample falls off from the inner wall of the core taking barrel 201, and the core taking barrel 201 if the core taking barrel 201 is not fallen off due to friction, the core taking barrel 201, and the core taking barrel 201, the core taking barrel 201 is moved downwards, and the core taking barrel 201 is moved, and the core taking barrel 201 is not pushed by the core taking rod 201, and the core taking barrel 201 is pushed downwards;
plate taking operation:
the moving plate 101 is moved by the controller, the electro-hydraulic device 308 is moved to the position right above the collected rut plate, water is added into the water storage box 5 through the front water pump 14, the moving plate 101 is fixed by applying pressure through the quality of the water, the distance between the cutting blade 301 and the rotating motor 306 is adjusted through the electric sliding rail 304 according to the size of the rut plate to be cut, the cutting length which can be cut by the cutting blade 301 is further adjusted, the cutting blade 301 enters the lower part of the road surface through the downward movement of the electro-hydraulic device 308, the cutting blade 301 is driven to rotate through the rotation of the cutting motor 302, the rut plate is cut off, after the cutting is finished, the clamping moving cylinder 401 moves downwards through the electric telescopic rod 412, and as the clamping rotating wheel 403 is rotationally connected with the clamping moving block 402, the cross section of the clamping moving block 402 is in a right triangle shape, the clamping rotating wheel 403 is caused to rotate on the clamping moving block 402 by up-and-down movement of the clamping moving block 402, one end of the clamping rotating wheel 403 is limited in the up-and-down direction through the clamping moving rod 405, the clamping rotating wheel 403 can only move in the horizontal direction, the clamping plate 406 connected with the clamping moving rod 405 is driven to move in the horizontal direction, the size of the clamping range of the clamping rotating wheel 403 can be changed, the clamping plate 406 descends through the right longitudinal electric sliding rail 414 and enters a cutting gap, after the clamping moving barrel 401 moves in the reverse direction, a sample is clamped more tightly, and the clamping plate 406 is driven to move upwards through the right longitudinal electric sliding rail 414 to take out a sample.
The circuits and controls involved in the present invention are all the prior art, and are not described herein in detail.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. The utility model provides an asphalt pavement coring bit and core machine, its characterized in that includes: the movable moving mechanism (1) can be used for a core taking mechanism (2) for drilling and coring, a plate taking mechanism (3) for sampling a road rut plate and a clamping mechanism (4) for taking out a rut plate sample;
the core drilling machine is characterized in that the moving mechanism (1) comprises a moving plate (101), a left notch (105) and a right notch (104) which are used for the core drilling mechanism (2) and the plate taking mechanism (3) to move up and down are respectively arranged at two ends of the moving plate (101), a rotating wheel hole is formed in the bottom of the moving plate (101), the inner wall of the rotating wheel hole is rotatably connected with a rotating wheel (102) through a transmission shaft, the transmission shaft is connected with a moving motor through a transmission mechanism, and the moving motor is placed in a motor groove in the bottom of the moving plate (101);
the coring mechanism (2) comprises a coring barrel (201) with a cutting tooth (202) made of thin-wall diamond at the bottom, a connecting column with a threaded hole is arranged at the top of the coring barrel (201) and is connected with the output end of a coring motor through the connecting column, the coring motor is placed in a motor shell (214), a moving groove (218) is arranged on the inner wall of the coring barrel (201), a plurality of opposite left sliding grooves (219) and right sliding grooves (220) are arranged at two ends of the inner wall of the moving groove (218), the left sliding grooves (219) and the right sliding grooves (220) are respectively connected with a left sliding block (204) and a right sliding block (205) in a sliding manner, the left sliding block (204) and the right sliding block (205) are fixed on end faces at two ends of an arc-shaped inner moving plate (203), an outer moving rod (206) in sliding connection with an outer connecting hole (221) is fixedly connected with the end face of the outer connecting hole (203), a moving hole (207) is arranged on the end face of the outer moving rod (206) facing outwards, the outer connecting hole (221) is arranged on the outer wall of the coring barrel (201), the top of the moving rod (208) is connected with a baffle (210) of a baffle (210), the baffle plate (210) and a baffle plate (209) is connected with the baffle (210) and a baffle plate (209) at the top of the baffle (210), the end face of the motor shell (214) is fixedly connected with a sampling moving plate (216), one end of the sampling moving plate (216) is fixedly connected with a left electric slider, the left electric slider is slidably connected with a left longitudinal electric sliding rail (217), the bottom of the left longitudinal electric sliding rail (217) is fixedly connected with the top of the moving plate (101), the top of the motor shell (214) is provided with a water inlet (215), the water inlet (215) is connected with the water outlet end of a water pump (12) through a water inlet pipe (13), the water inlet end of the water pump (12) is connected with the water outlet of a water tank (7), the water tank (7) is placed on a pull plate (6) with a moving wheel at the bottom, and the pull plate (6) is fixedly connected with one end of the moving plate (101) through a pull rod (8);
the plate taking mechanism (3) comprises a cutting plate (301), the axis of the cutting plate (301) is connected to the output end of a cutting motor (302) in a sleeved mode, the cutting motor (302) is fixed on a cutting moving plate (303), the top of the cutting moving plate (303) is connected with an electric sliding rail (304) through a sliding block, the top of the electric sliding rail (304) is connected to the bottom of a rotating plate (305) through a bolt, one end of the rotating plate (305) is fixedly connected with the output end of a rotating motor (306), the rotating motor (306) is fixedly connected with a rotating moving plate (307), the rotating moving plate (307) is fixedly connected with an electric hydraulic device (308), and the electric hydraulic device (308) is fixedly connected with the top of the moving plate (101) through a connecting frame;
the clamping mechanism (4) comprises a plurality of clamping plates (406), the thickness of the clamping plates (406) is smaller than that of the cutting blade (301), one end of the clamping plate (406) is fixedly connected with a clamping moving rod (405), the clamping moving rod (405) passes through the clamping moving hole (407) to be connected with the connecting piece (404), the clamping moving hole (407) is arranged on the arc-shaped limiting ring (408), the inner wall of the limiting ring (408) is fixedly connected with the outer wall of the clamping moving cylinder (401) through a limiting connecting rod (409), the inner wall of the connecting piece (404) is rotationally connected with the clamping rotating wheel (403), the clamping rotating wheel (403) is rotationally connected with a clamping moving block (402), the cross section of the clamping moving block (402) is in a right triangle shape, the clamping moving blocks (402) are welded on the end surface of the clamping moving cylinder (401), the clamping moving blocks (402) are arranged around the clamping moving cylinder (401) in an equidistant circle, the top of the clamping moving cylinder (401) is fixedly connected with a clamping moving plate (411), the clamping moving plate (411) is fixedly connected with an electric telescopic rod (412), the end surface of the electric telescopic rod (412) is connected with the electric right sliding block through a telescopic rod connecting plate (413), the electric right sliding block is connected with a right longitudinal electric sliding rail (414) in a sliding mode, and the right longitudinal electric sliding rail (414) is fixedly connected with the top of the moving plate (101).
2. The core drill and core extractor as claimed in claim 1, wherein the core extracting barrel (201) is connected with a stripping push plate in a sliding manner, the top of the stripping push plate is fixedly connected with an n-shaped push plate rod (211), the outer wall of the push plate rod (211) is connected with a push plate hole (212) in the top of the core extracting barrel (201) in a sliding manner, and the top of the push plate rod (211) is provided with a through hole (213).
3. The bituminous pavement core drill and core drill as claimed in claim 1, characterized in that the end faces of both ends of the electric slide rail (304) are respectively provided with a left slide rail hole and a right slide rail hole, the left slide rail hole and the right slide rail hole are respectively and movably connected with a left slide rail baffle (313) and a right slide rail baffle (314), and the two end faces of the edges of the left slide rail baffle (313) and the right slide rail baffle (314) are located right above the moving plate (101) on both sides of the right notch (104).
4. The core drill and core extractor as claimed in claim 2, wherein a plurality of springs are arranged between the opposite end faces of the inner moving plate (203) and the moving groove (218), the springs are symmetrically arranged in two rows, two ends of each spring are respectively fixedly connected with the inner walls of the inner moving plate (203) and the moving groove (218), the outer moving rod (206) is in a shape of a "]", and the outer connecting hole (221) is matched with the outer moving rod (206) in shape.
5. The bituminous pavement core drill and core drill as claimed in claim 1, characterized in that the link comprises a fixed ring (309), the fixed ring (309) is sleeved on the outer wall of the electro-hydraulic device (308), the end face of the fixed ring (309) is fixedly connected with a plurality of connecting rods (310), the connecting rods (310) are circumferentially arranged around the fixed ring (309) on the outer wall of the fixed ring (309), the bottom of the connecting rods (310) is fixedly connected with a horizontally placed connecting plate (311), the connecting plate (311) is provided with connecting screw holes (312), and the movable plate (101) outside the right notch (104) is provided with fixed screw holes (103) matched with the connecting screw holes (312).
6. The bituminous pavement core-drilling and core-drilling machine as claimed in claim 5, characterized in that the bottom of the clamping moving cylinder (401) is of an open structure, the electro-hydraulic device (308) is located inside the clamping moving cylinder (401), the axis of the electro-hydraulic device (308) and the axis of the clamping moving cylinder (401) are located on the same vertical line, the bottom of the clamping moving cylinder (401) is provided with a plurality of clamping through holes (410), and the width of the clamping through holes (410) is greater than that of the connecting rod (310).
7. The core drill and core drill for the asphalt pavement as recited in claim 1, wherein a water storage box (5) is arranged at the top of the movable plate (101), a water storage water inlet of the water storage box (5) is connected with a water outlet end of a front water pump (14) through a water storage water inlet pipe (15), a water inlet end of the front water pump (14) is connected with a water outlet hole of a water tank (7), a water storage water outlet of the water storage box (5) is connected with a water inlet end of a rear water pump (10) through a water storage water outlet pipe (11), and a water outlet end of the rear water pump (10) is connected with a water inlet hole of the water tank (7).
8. The core-taking drill and core-taking machine for the bituminous pavement as claimed in claim 1, wherein the electric slide rail (304) is arranged at the bottom of the rotating plate (305) in a staggered manner, and the vertical distance between one end of the electric slide rail (304) close to the rotating motor (306) and the rotating motor (306) is greater than the vertical distance between one end of the rotating plate (305) close to the rotating motor (306) and the rotating motor (306).
9. The core drill and core drill for asphalt pavement according to claim 1, wherein a U-shaped placing barrel (9) is arranged on one side of the core barrel (201), the placing barrel (9) is connected with the inner wall of the left gap (105) through a placing connecting plate (16), the placing barrel (9) is composed of a transverse lower part (903) and a vertical left part (901) and a vertical right part (902), the lower part (903) and the left part (901) are communicated with the inside of the right part (902), the bottom and the end surface of the lower part (903) are respectively provided with a discharge hole and a material pushing hole (908), the top of the left part (901) right above the discharge hole is provided with a material feeding hole (905), the top of the right part (902) is provided with a material feeding hole (904), the inner walls of the left part (901) and the lower part (903) are respectively connected with a material pushing plate (909) and a material feeding plate in a sliding manner, the material pushing plate (909) and the material feeding plate are respectively fixedly connected with a material feeding electric telescopic rod (910) and a material feeding electric telescopic rod (906), and the inner wall of the material pushing electric telescopic rod (910) and the left material telescopic rod (906) are respectively connected with the material feeding electric telescopic rod (907) through a connecting plate (907).
CN202210945601.4A 2022-08-08 2022-08-08 Core drill and core machine are got to bituminous paving Pending CN115233645A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202210945601.4A CN115233645A (en) 2022-08-08 2022-08-08 Core drill and core machine are got to bituminous paving
PCT/CN2022/133638 WO2024031871A1 (en) 2022-08-08 2022-11-23 Core drill and core drilling machine for asphalt pavement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210945601.4A CN115233645A (en) 2022-08-08 2022-08-08 Core drill and core machine are got to bituminous paving

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024031871A1 (en) * 2022-08-08 2024-02-15 苏交科集团检测认证有限公司 Core drill and core drilling machine for asphalt pavement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1563642A (en) * 1967-03-09 1969-04-18
GB2520354A (en) * 2013-11-19 2015-05-20 Stephen John Dunmore Coring apparatus, kits and methods
CN110905432A (en) * 2019-12-11 2020-03-24 朱德良 Municipal works detect and get core machine with concrete road surface drilling
CN113459114B (en) * 2021-05-14 2022-09-30 安徽凯风工程科技有限公司 Core robot is got in road surface drilling
CN214894128U (en) * 2021-06-08 2021-11-26 苏交科集团股份有限公司 Core drill and core machine are got to bituminous paving
CN217059427U (en) * 2022-01-13 2022-07-26 中交二公局第三工程有限公司 Concrete that easily core material was taken out detects uses coring device
CN115233645A (en) * 2022-08-08 2022-10-25 苏交科集团股份有限公司 Core drill and core machine are got to bituminous paving

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024031871A1 (en) * 2022-08-08 2024-02-15 苏交科集团检测认证有限公司 Core drill and core drilling machine for asphalt pavement

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