A coolant recovery and recycling device for a core drilling machine

Abstract

This invention discloses a coolant recycling device for a core drilling machine, relating to road inspection and construction equipment. The device includes a drive mechanism, a hollow drill barrel, a centrifugal retainer, an inner cylinder, an outer cylinder, and a filter. The drive mechanism is connected to the hollow drill barrel and controls its rotation. The working part of the hollow drill barrel is placed inside the inner cylinder, and the centrifugal retainer is fixedly connected to it, which in turn connects to and fixes the inner cylinder. The top of the inner cylinder is open, and its inner wall is provided with a flexible absorbent material and multiple water-passing perforations. The surface of the flexible absorbent material covers the inner wall of the inner cylinder, and an outer cylinder is fitted around it. The inner wall of the outer cylinder is provided with a water collection tank, and the multiple water-passing perforations are aligned with the water collection tank, which is connected to the filter. This invention solves the problems of existing core drilling machines being unable to separate wastewater and debris and the inability to recycle coolant.

Description

Technical Field

[0001] The invention relates to road detection construction equipment, in particular to a coolant recovery and recycling device for a core drilling machine. Background Art

[0002] When the existing core drilling machine is in operation, the cooling water used is mixed with broken road slab debris and flows everywhere, seriously polluting the road surface. If it is not cleaned in time, it will flow back into the road slab, destroying the quality of the lower base structure of the road slab. In order not to damage the quality of the lower base structure of the road slab, one or two workers are usually equipped during the on-site core drilling operation to take turns to clean up the wastewater and residues through the adsorption of flexible absorbent materials to protect the road surface environment. However, the on-site working environment of the workers is relatively poor, and the wastewater after the operation is completed must be taken out of the site, which is time-consuming, labor-intensive and labor-intensive; from the perspective of environmental protection, it also causes a waste of water resources. Considering various factors, a core drilling machine with cooling water recycling came into being.

[0003] At present, the prior art discloses a coring machine with a wastewater collection device. The technology sets a double-layer collection cylinder, wherein a suction pipe is arranged in the inner cylinder for absorbing water, and the outer cylinder is used to prevent water splashing in the inner cylinder. However, the suction pipe of the inner cylinder of the prior art cannot separate the wastewater and debris when absorbing wastewater and debris, which may cause the debris to clog the suction pipe and affect the water absorption effect. In addition, after the prior art collects the wastewater, it does not filter and recycle it, resulting in a waste of water resources.

[0004] In summary, it is of great significance to provide a core drilling machine that can effectively separate wastewater and debris and recycle cooling water. Summary of the invention

[0005] The object of the present invention is to provide a coolant recovery and recycling device for a core drilling machine, so as to solve the problem that the existing core drilling machine cannot separate waste water debris and the cooling water cannot be recycled.

[0006] In order to solve the above technical problems, the present invention provides a coolant recovery and recycling device for a core drilling machine, comprising a driving mechanism, a hollow drill barrel, a centrifugal fixer, an inner barrel, an outer barrel and a filter; the driving mechanism is connected to the hollow drill barrel, and the driving mechanism is used to control the rotation of the hollow drill barrel; the working part of the hollow drill barrel is placed in the inner barrel, the hollow drill barrel is fixedly connected to the centrifugal fixer, and the centrifugal fixer is connected and fixed to the inner barrel; the top of the inner barrel is open, the inner wall of the inner barrel is provided with a flexible water-absorbing material and a plurality of water-passing holes, the surface of the flexible water-absorbing material covers the inner wall of the inner barrel, and the outer barrel is sleeved on the outside of the inner barrel; the inner wall of the outer barrel is provided with a water collecting trough, the plurality of water-passing perforations are all aligned with the water collecting trough, and the water collecting trough is connected to the filter.

[0007] In one embodiment, the centrifugal fixer comprises a plurality of spokes, one end of each of the plurality of spokes is connected and fixed to the hollow drill tube, and the other end of each of the plurality of spokes is connected and fixed to the inner tube.

[0008] In one embodiment, the flexible water-absorbing material is arranged in an annular shape on the inner wall of the inner cylinder.

[0009] In one embodiment, the water-passing holes are arranged spirally on the inner wall of the inner cylinder.

[0010] In one embodiment, the outer wall of the inner cylinder is provided with a plurality of first ball holes; the inner wall of the outer cylinder is provided with a plurality of second ball holes; the plurality of first ball holes are aligned with the plurality of second ball holes, and balls are provided between the plurality of first ball holes and the plurality of second ball holes.

[0011] In one of the embodiments, the water collecting trough includes a threaded water collecting trough and a vertical water collecting trough; the threaded water collecting trough is arranged in a threaded annular direction along the axis of the outer tube on the inner wall of the outer tube; the vertical water collecting trough is arranged on the inner wall of the outer tube along the axis direction of the outer tube; the threaded water collecting trough and the vertical water collecting trough are connected.

[0012] In one of the embodiments, a bottom plate is provided at the bottom of the inner tube; the bottom plate is provided with a through hole, and the hollow drill tube is placed in the through hole.

[0013] In one of the embodiments, an annular water collecting groove is arranged on the top of the bottom plate in a circumferential direction along the axis of the outer cylinder; the annular water collecting groove is provided at the bottom of the outer cylinder, and the annular water collecting groove is connected to the filter.

[0014] In one embodiment, the filter includes a first water pump, a second water pump, a third water pump, a first filtered water collecting box, a second filtered water collecting box and a cooling water tank; the first filtered water collecting box is connected to the bottom of the outer cylinder, and the first filtered water collecting box and the outer cylinder are connected by the first water pump; the first filtered water collecting box is connected to the second filtered water collecting box, and the first filtered water collecting box and the second filtered water collecting box are connected by the second water pump; the second filtered water collecting box is connected to the cooling water tank, and the second filtered water collecting box and the cooling water tank are connected by the third water pump.

[0015] In one embodiment, the outer wall of the outer cylinder is sleeved with a body; the body is fixedly connected to a limiter, and the working part of the limiter is placed outside the outer cylinder.

[0016] The beneficial effects of the present invention are as follows:

[0017] Since the hollow drill barrel is fixedly connected to the centrifugal holder, and the centrifugal holder is connected and fixed to the inner barrel; the top of the inner barrel is open, and the inner wall of the inner barrel is provided with a flexible water-absorbing material and a plurality of water-passing holes, when it is used, the hollow drill barrel will drive the inner barrel, and the inner barrel will perform centrifugal motion. Moreover, since the inner wall of the inner barrel is provided with a flexible water-absorbing material and a plurality of water-passing holes, the waste water and debris generated during core drilling can be separated.

[0018] Moreover, since the inner cylinder is provided with a plurality of water-passing holes, the inner wall of the outer cylinder is provided with a water collecting groove, the plurality of water-passing holes are all aligned with the water collecting groove, and the water collecting groove is connected to the filter, when in use, the water in the inner cylinder enters the water collecting groove of the outer cylinder and is filtered through the filter, thereby realizing the recycling of wastewater.

[0019] In summary, the present invention effectively solves the problem that the existing core drilling machine cannot effectively separate wastewater debris and the cooling water cannot be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the internal structure of the core drilling machine provided in a preferred embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the transverse cross-sectional structure of a core drilling machine provided in a preferred embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of the vertical cross-sectional structure inside the outer cylinder provided in a preferred embodiment of the present invention;

[0024] Figure 4 It is a schematic diagram of the arrangement of water perforations on the inner wall provided in a preferred embodiment of the present invention.

[0025] The reference numerals are as follows:

[0026] 1. Driving mechanism;

[0027] 2. Machine body; 20. Stopper;

[0028] 3. Hollow drill tube;

[0029] 4. Centrifugal retainer; 40. Spokes;

[0030] 5. Inner cylinder; 50. Flexible water-absorbing material; 51. Water-passing hole; 52. First ball hole;

[0031] 6. outer cylinder; 60. water collecting tank; 600. threaded water collecting tank; 601. vertical water collecting tank; 61. second ball hole; 62. ball;

[0032] 7. bottom plate; 70. annular water collecting trough; 71. through hole;

[0033] 8. Filter; 80. First water pump; 81. Second water pump; 82. Third water pump; 83. Livestock battery; 84. First filtered water collection box; 85. Second filtered water collection box; 86. Cooling water tank. DETAILED DESCRIPTION

[0034] In the prior art, core drilling machines have two main defects: first, the existing core drilling machines are only provided with filter holes to filter wastewater containing debris, but this can easily lead to debris clogging the filter holes, resulting in poor filtering effect; second, the wastewater filtration of the existing core drilling machine is only to filter sand and gravel, and the main purpose is not to damage the quality of the lower base structure of the road slab, and there is a lack of consideration for multi-stage filtration of the wastewater and then recycling it.

[0035] In order to solve the above problems, the present invention will improve the core drilling machine through two technical features: first, an inner cylinder 5 fixedly connected to the hollow drill tube 3 is provided to perform centrifugal motion, and the inner cylinder 5 is provided with a flexible water-absorbing material 50 and a plurality of water-passing holes 51, which can completely separate the waste water and debris; second, a water collecting trough 60 is provided on the inner wall of the outer cylinder 6, and the filter 8 is connected through the water collecting trough 60, and multi-stage filtration is performed in the filter 8 and stored in the cooling water tank 86, which can achieve the effect of recycling and reusing the waste water.

[0036] For details, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The core idea of ​​the present invention is to set up a coolant recovery and recycling device for a core drilling machine, including a driving mechanism 1, a hollow drill barrel 3, a centrifugal fixture 4, an inner barrel 5, an outer barrel 6 and a filter 8; the driving mechanism 1 is connected to the hollow drill barrel 3, and the driving mechanism 1 is used to control the hollow drill barrel 3 to rotate; the working part of the hollow drill barrel 3 is placed in the inner barrel 5, the hollow drill barrel 3 is fixedly connected to the centrifugal fixture 4, and the centrifugal fixture 4 is connected to and fixed to the inner barrel 5; the top of the inner barrel 5 is open, and the inner wall of the inner barrel 5 is provided with a flexible water-absorbing material 50 and a plurality of water-passing holes 51, the surface of the flexible water-absorbing material 50 covers the inner wall of the inner barrel 5, and the outer barrel 6 is sleeved on the outside of the inner barrel 5; the inner wall of the outer barrel 6 is provided with a water collecting trough 60, and the plurality of water-passing holes 51 are all aligned with the water collecting trough 60, and the water collecting trough 60 is connected to the filter 8.

[0037] After adopting the above-mentioned setting method, the coolant recovery and recycling device of the core drilling machine can not only completely separate the wastewater and debris, but also achieve the effect of recycling the wastewater. In order to better explain a coolant recovery and recycling device for a core drilling machine, the following will explain it with a preferred embodiment.

[0038] The preferred embodiment of the coolant recovery and recycling device of the core drilling machine of the present invention can be found in Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes a driving mechanism 1, a machine body 2, a hollow drill tube 3, a centrifugal holder 4, an inner tube 5, an outer tube 6, a bottom plate 7 and a filter 8.

[0039] For the above-mentioned drive mechanism 1, see Figure 1 The driving mechanism 1 includes a driving motor and a transmission shaft. The driving motor is fixedly connected to the top of the machine body 2. The driving motor gear is connected to the transmission shaft. The transmission shaft is connected to the hollow drill barrel 3 through a common flat key.

[0040] It should be understood that there are many ways of driving the motor transmission connection, including but not limited to synchronous belt connection, direct connection and gear connection. In this case, gear connection is the preferred choice, and the user can set it according to his own needs. After such a setting, the drive motor can drive the hollow drill barrel 3 to rotate, thereby driving the inner barrel 5 to perform centrifugal motion.

[0041] For the above-mentioned unit 2, see Figure 1 and Figure 2 The body 2 is sleeved outside the outer tube 6, and an observation port is provided on the side wall of the body 2, which is used to observe the core drilling condition of the inner tube; a limiter 20 is fixedly connected inside the body 2, and the working part of the limiter 20 is placed outside the outer tube 6.

[0042] It should be understood that the limiter 20 is used to limit the outer cylinder 6 to prevent the outer cylinder 6 from tipping over due to excessive torque deviation during rotation.

[0043] For the above-mentioned hollow drill tube 3, see Figure 1 and Figure 2 The working part of the hollow drill barrel 3 is placed in the inner barrel 5. A circle of annular convex wall is provided on the top of the hollow drill barrel 3. The inner wall of the annular convex wall is provided with a thread, and the transmission shaft is connected through the inner wall thread; four convex walls are provided on the outer wall of the hollow drill barrel 3, and each of the four convex walls is arranged at an interval of 90 degrees. Connecting through holes are provided on the four convex walls; a circle of annular serrated blades is provided at the bottom of the barrel wall of the hollow drill barrel 3.

[0044] The annular serrated edge of the hollow drill tube 3 is inlaid with carbide cutting teeth, which can perform drilling and digging operations under very hard ground conditions and can take out complete and smooth road core samples.

[0045] It should be understood that the hollow drill tube 3 is provided with a water inlet, and the water inlet can be provided to introduce cooling water, which can prevent the hollow drill tube 3 from overheating and stopping working.

[0046] For the centrifugal holder 4 mentioned above, see Figure 1 , Figure 2 and Figure 3 The centrifugal holder 4 is used to connect and fix the hollow drill tube 3 and the inner tube 5. The centrifugal holder 4 includes four spokes 40. One end of the four spokes 40 is provided with a 90° bend, and the bend passes through the connecting through hole of the hollow drill tube 3. A cap is provided on the bend for clamping the bend on the connecting through hole; the other end of the four spokes 40 is provided with a thread for connecting to the inner wall.

[0047] It should be understood that, through such a setting, the four spokes 40 can connect and fix the hollow drill tube 3 and the inner tube 5, so that when the hollow drill tube 3 rotates, the inner tube 5 is also driven to rotate, providing a basis for separating wastewater and debris. Of course, the number of spokes 40 includes but is not limited to three or more, and the specific number of spokes 40 can be selected by the user according to his own needs.

[0048] For the inner cylinder 5 mentioned above, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The top of the inner cylinder 5 is open, and the open structure facilitates observation of the core drilling situation; four threaded blind holes are provided on the top of the inner wall of the inner cylinder 5, and the four threaded blind holes are arranged at 90° intervals, and the four threaded blind holes are all connected to the threaded end of the spoke 40; a plurality of water-passing holes 51 are provided on the inner wall of the inner cylinder 5, and the plurality of water-passing holes 51 are arranged in a spiral manner, and the plurality of water-passing holes 51 are all aligned with the water collecting tank 60 of the outer cylinder 6; the inner wall surface of the inner cylinder 5 is covered with a flexible water-absorbing material 50, and the flexible water-absorbing material 50 is arranged in a ring on the inner wall of the inner cylinder 5; a bottom plate 7 is also provided at the bottom of the inner cylinder 5.

[0049] It should be understood that, through such an arrangement, the inner wall of the inner cylinder 5 can rotate with the hollow drill cylinder 3 and generate centrifugal force during rotation; and the flexible water-absorbing material 50 and the water-passing holes 51 on the inner wall of the inner cylinder 5 can effectively separate wastewater and debris.

[0050] The four threaded blind holes are aligned with the four connecting through holes, and each threaded blind hole and each connecting through hole are arranged at the same height to ensure that the axes of the four spokes 40 are on the same horizontal plane, so that the hollow drill tube can effectively drive the inner tube 5 to rotate.

[0051] Among them, the water-passing holes 51 are arranged on the inner wall of the inner tube 5, and the water-passing holes 51 are aligned with the water collecting tank 60 of the outer tube 6, so that the wastewater absorbed by the flexible absorbent material 50 can enter the water collecting tank 60 from the water-passing holes 51 due to the centrifugal effect, and play the role of water collection.

[0052] It should be understood that the aperture size of the water-passing hole 51 is 10 mm to 50 mm. This arrangement ensures that the water-passing hole 51 can smoothly deliver wastewater to the water collection tank 60 .

[0053] Among them, the annular surface of the flexible water-absorbing material 50 covers the inner wall of the inner cylinder 5, and the bottom of the flexible water-absorbing material 50 abuts the bottom plate 7. Through such a setting, when the flexible water-absorbing material 50 rotates along with the wall of the inner cylinder 5, the wastewater on the surface of the bottom plate 7 and the debris are attached to the surface of the flexible water-absorbing material 50 due to the centrifugal effect, and the wastewater absorbed by the porous structure of the flexible water-absorbing material 50 will enter the multiple water-passing holes 51 under the action of centrifugal force and enter the water collecting tank 60 on the inner wall of the outer cylinder 6, but the debris cannot overflow from it. Due to the centrifugal force, it is firmly attached to the surface of the flexible water-absorbing material 50, thereby playing a role in separating the wastewater and road surface structure residues in the core drilling process.

[0054] It should be understood that the flexible water-absorbing material 50 includes but is not limited to sponges, gauze, cotton wool and highly absorbent resins. In this example, the flexible water-absorbing material 50 is preferably a sponge, and users can choose according to their own needs.

[0055] For the outer cylinder 6 mentioned above, see Figure 1 , Figure 2 and Figure 3 The outer cylinder 6 is sleeved on the outside of the inner cylinder 5, and the outer cylinder 6 is slidably connected to the inner cylinder 5; the inner wall of the outer cylinder 6 is provided with a water collecting trough 60, and the water collecting trough 60 covers the multiple water-passing holes 51 on the wall of the inner cylinder 5, so that the waste water from the multiple water-passing holes 51 can be collected in the water collecting trough 60; a circle of annular slide rails is provided on the top of the outer cylinder 6, and the outer wall of the outer cylinder 6 is sleeved with a body 2, and the body 2 is fixedly connected to a limiter 20, and the working part of the limiter 20 is placed in the annular slide rail on the top of the outer cylinder 6; the bottom of the outer cylinder 6 is also provided with a bottom plate 7.

[0056] It should be understood that, through such a configuration, the water collection trough 60 of the outer cylinder 6 can effectively collect the waste water passing through the water perforations 51 into the water collection trough 60; and the limiter 20 on the outer wall of the outer cylinder 6 can effectively prevent the outer cylinder 6 from tipping over during rotation.

[0057] Among them, the water collecting trough 60 includes a threaded water collecting trough 600 and a vertical water collecting trough 601. The threaded water collecting trough 600 is arranged in a threaded ring along the axis of the outer tube 6 on the inner wall of the outer tube 6, and the vertical water collecting trough 601 is arranged on the inner wall of the outer tube 6 along the axis direction of the outer tube 6; the threaded water collecting trough 600 and the vertical water collecting trough 601 are connected.

[0058] It should be understood that the threaded water collection trough 600 and the vertical water collection trough 601 are both connected, and the vertical water collection trough 601 allows the wastewater in the threaded water collection trough 600 to flow quickly to the bottom of the outer tube 6 under the action of gravity and be collected by the annular water collection trough 70 at the bottom of the outer tube 6.

[0059] Among them, the above-mentioned outer cylinder 6 is slidably connected to the inner cylinder 5 in the following manner: the outer wall of the inner cylinder 5 is provided with a plurality of first ball holes 52; the inner wall of the outer cylinder 6 is provided with a plurality of second ball holes 61; the plurality of first ball holes 52 are aligned with the plurality of second ball holes 61, and balls 62 are provided between the plurality of first ball holes 52 and the plurality of second ball holes 61.

[0060] It should be understood that the interval between the outer cylinder 6 and the inner cylinder 5 is a physical interval. Through such a setting, the outer cylinder 6 can rotate with the inner cylinder 5, so that the water perforation 51 can always be aligned with the water collection tank 60, so that the wastewater can be efficiently collected through the water collection tank 60.

[0061] Among them, the limiter 20 abuts against the outer wall of the outer tube 6, and the limiter 20 includes multiple hydraulic telescopic brackets, and the multiple telescopic brackets are slidably connected to one end of the outer tube and are provided with an arc-shaped buckle. The arc-shaped buckles of the multiple hydraulic telescopic brackets are placed in the annular slide rail at the top of the outer tube 6, and the arc-shaped buckles of the multiple hydraulic telescopic brackets form a circular limit hole.

[0062] It should be understood that, through such an arrangement, the circular limiting hole which is suitable for the size of the outer wall of the outer cylinder 6 can prevent the inner cylinder 5 and the outer cylinder 6 from turning over due to excessive torque offset during rotation.

[0063] Of course, the materials selected for the hollow drill tube 3, the inner tube 5 and the outer tube 6 are all rigid materials that are resistant to soil corrosion, and the materials include but are not limited to nickel-containing alloys, and users can choose according to their own needs.

[0064] For the above-mentioned base plate 7, see Figure 1 The bottom plate 7 is arranged at the bottom of the inner tube 5 and the outer tube 6; the bottom plate 7 is provided with a through hole 71, and the hollow drill tube 3 is placed in the through hole 71; an annular water collecting trough 70 is arranged in an annular direction along the axis of the outer tube 6 on the top of the bottom plate 7, and the annular water collecting trough 70 is arranged at the bottom of the outer tube 6, and the annular water collecting trough 70 is connected to the filter 8 through the water diversion trough.

[0065] It should be pointed out that the annular water collection trough 70 is connected to the vertical water collection trough 601 and the spiral water collection trough 600, and the wastewater from the spiral water collection trough 600 and the vertical water collection trough 601 can be transported to the filter 8, and the bottom plate 7 needs to be placed in contact with the pavement structure, and the thickness of the bottom plate 7 needs to be selected to be consistent to prevent uneven thickness from causing parallelism deviation in the working plane and thus causing the core sample position to shift.

[0066] The provision of the through hole 71 enables the through hole 71 to serve as a track for the hollow drill tube 3, thereby preventing the hollow drill tube 3 from deviating to one side when rotating.

[0067] The annular water collecting trough 70 is arranged at the bottom of the outer tube 6 , and a circle of annular water baffles is arranged on the top of the annular water collecting trough 70 to prevent water from overflowing from the annular water collecting trough 70 .

[0068] For filter 8 above, see Figure 1 and Figure 2 The filter 8 includes a first water pump 80, a second water pump 81, a third water pump 82, a first filtered water collecting box 84, a second filtered water collecting box 85 and a cooling water tank 86; a battery 83 is fixed to the outer wall of the first filtered water collecting box 84, the first filtered water collecting box 84 is connected to the bottom of the outer cylinder 6, and the first filtered water collecting box 84 and the outer cylinder 6 are connected to the first water pump 80; the first filtered water collecting box 84 is connected to the second filtered water collecting box 85, and the second water pump 81 is connected between the first filtered water collecting box 84 and the second filtered water collecting box 85; the second filtered water collecting box 85 is connected to the cooling water tank 86, and the third water pump 82 is connected between the second filtered water collecting box 85 and the cooling water tank 86.

[0069] The storage battery 83 is used to supply power to the first water pump 80 , the second water pump 81 , and the third water pump 82 , so that the first water pump 80 , the second water pump 81 , and the third water pump 82 can pump water.

[0070] Among them, a first water inlet is provided on one side wall of the first filtered water collecting box 84, a first water outlet is provided on the other side wall, and a partition net is provided inside the first filtered water collecting box 84; the first filtered water collecting box 84 is connected to the outer cylinder 6 and is connected to a first water pump 80, the first water pump 80 is arranged at the water inlet groove of the bottom plate 7, and the first water pump 80 pipeline is connected to the first filtered water collecting box 84, and the first water pump 80 is used to pump the wastewater collected by the outer cylinder 6 into the first filtered water collecting box 84 for the first stage of filtration; a second water pump 81 is arranged in the first filtered water collecting box 84, and the second water pump 81 is connected to the second filtered water collecting box 85.

[0071] It should be noted that the screen in the first filtered water collection box 84 is used to filter the wastewater at the water inlet for the first time and perform the first stage of filtration; the first filtered water collection box 84 and the second filtered water collection box 85 are connected via small holes in the common inner wall.

[0072] Among them, the second filtered water collecting box 85 is provided with a second water inlet on one side wall and a second water outlet on the other side wall. The second water inlet is located below the side wall and the second water outlet is located above the side wall. The second filtered water collecting box 85 precipitates and purifies the water that has been purified for the first time, and the precipitated and purified water will flow out through the second water outlet; the second water pump 81 pipeline is connected to the second water inlet to pump the water in the first filtered water collecting box 84 into the second filtered water collecting box 85, and the second water outlet is connected to the cooling water tank 86 via a third water pump 82.

[0073] Among them, the cooling water tank 86 is provided with a third water inlet, the third water inlet is connected to the third water pump 82, and the water in the second filtered water collection box 85 is pumped into the cooling water tank 86. The water in the cooling water tank 86 can be used again to cool the hollow drill barrel 3, so as to achieve the recycling of cooling water.

[0074] The specific use steps of the present invention are described in detail below:

[0075] S1, the hollow drill tube 3 is positioned and installed, the bottom plate 7 is placed in contact with the road surface structure, and the outer tube is limited by a hydraulic telescopic bracket so that the plate body and the road surface are tightly fitted;

[0076] S2, fix the inner tube 5 to the hollow drill tube 3 through the spokes 40 so that it can rotate together with the inner tube 5;

[0077] S3, fix the battery 83, the first water pump 80, the second water pump 81, the third water pump 82, the first filtered water collection box 84, the second filtered water collection box 85 and the cooling water tank 86 to the body 2 through the connecting device;

[0078] S4, turn on the switches of the first water pump 80, the second water pump 81 and the third water pump 82, then turn on the core drilling machine switch, the hollow drill tube drives the inner tube 5 to rotate, and the wastewater containing the road surface structure residue in the core drilling process is adsorbed and cleaned by the sponge fixed on the inner wall of the inner tube 5. The sponge on the inner wall of the inner tube 5 absorbs the wastewater on the bottom plate 7 through adsorption and firmly absorbs the residue. The wastewater absorbed by the sponge will enter the threaded annular pipe 600 of the outer tube 6 of the cylinder under the action of centrifugal force, and fall into the vertical water collection tank 601 under the action of gravity;

[0079] S5, the first water pump 80 transfers the waste water passing through the sponge to the first filtered water collection box 84 for the first filtration, the second water pump 81 transfers the water in the first filtered water collection box 84 to the second filtered water collection box 85 for the second filtration, and the cooling water that reaches the use standard is transferred to the cooling water tank 86 through the third water pump 82;

[0080] S6, after the core drilling is completed, the various parts in the device are cleaned and replaced to prepare for the next core drilling operation. In this process, the cooling water is effectively recycled and reused.

[0081] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A coolant recovery and recycling device for a core drilling machine, characterized in that: It includes a driving mechanism, a hollow drill tube, a centrifugal holder, an inner tube, an outer tube and a filter; The driving mechanism is connected to the hollow drill barrel, and the driving mechanism is used to control the hollow drill barrel to rotate; The working part of the hollow drill tube is placed in the inner tube, the hollow drill tube is fixedly connected to the centrifugal fixture, and the centrifugal fixture is connected and fixed to the inner tube; The top of the inner cylinder is open, the inner wall of the inner cylinder is provided with a flexible water-absorbing material and a plurality of water-passing holes, the surface of the flexible water-absorbing material covers the inner wall of the inner cylinder, and the outer cylinder is sleeved on the outer side of the inner cylinder; The inner wall of the outer cylinder is provided with a water collecting groove, and the plurality of water-passing holes are all aligned with the water collecting groove, and the water collecting groove is connected to the filter; The flexible water-absorbing material is arranged in an annular manner on the inner wall of the inner cylinder; The water-passing holes are arranged in a spiral manner on the inner wall of the inner cylinder.

2. The coolant recovery and recycling device for a core drilling machine according to claim 1, characterized in that: The centrifugal fixer comprises a plurality of spokes, one end of each of the plurality of spokes is connected and fixed to the hollow drill tube, and the other end of each of the plurality of spokes is connected and fixed to the inner tube.

3. The coolant recovery and recycling device for a core drilling machine according to claim 1, characterized in that: The outer wall of the inner cylinder is provided with a plurality of first ball holes; The inner wall of the outer cylinder is provided with a plurality of second ball holes; The plurality of first ball rolling holes are aligned with the plurality of second ball rolling holes, and balls are arranged between the plurality of first ball rolling holes and the plurality of second ball rolling holes.

4. The coolant recovery and recycling device for a core drilling machine according to claim 1, characterized in that: The water collecting trough includes a threaded water collecting trough and a vertical water collecting trough; The threaded water collecting groove is arranged on the inner wall of the outer cylinder in a threaded circumferential direction along the axis of the outer cylinder; The vertical water collecting groove is arranged on the inner wall of the outer cylinder along the axis direction of the outer cylinder; The threaded water collecting trough and the vertical water collecting trough are connected.

5. The coolant recycling and utilization device for a core drilling machine according to claim 1, characterized in that: A bottom plate is provided at the bottom of the inner cylinder; The bottom plate is provided with a through hole, and the hollow drill tube is placed in the through hole.

6. The coolant recovery and recycling device for a core drilling machine according to claim 5, characterized in that: An annular water collecting trough is arranged on the top of the bottom plate in an annular direction along the axis of the outer cylinder; The annular water collecting tank is arranged at the bottom of the outer cylinder, and the annular water collecting tank is connected to the filter.

7. The coolant recovery and recycling device for a core drilling machine according to claim 1, characterized in that: The filter comprises a first water pump, a second water pump, a third water pump, a first filtered water collection box, a second filtered water collection box and a cooling water tank; The first filtered water collecting box is connected to the bottom of the outer cylinder, and a first water pump is connected between the first filtered water collecting box and the outer cylinder; The first filtered water collecting box is connected to the second filtered water collecting box, and a second water pump is connected between the first filtered water collecting box and the second filtered water collecting box; The second filtered water collecting box is connected to the cooling water tank, and a third water pump is connected between the second filtered water collecting box and the cooling water tank.

8. The coolant recycling and utilization device for a core drilling machine according to claim 1, characterized in that: The outer wall of the outer cylinder is sleeved with a body; The machine body is fixedly connected with a limiter, and a working part of the limiter is arranged outside the outer cylinder.

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