A drilling machine for road construction

Abstract

The present invention discloses a drilling machine for road construction, characterized in that it comprises a driving mechanism, a cooling mechanism and a drilling mechanism, the driving mechanism comprising a cylinder, a fixed cover and a motor, the cylinder output end is fixedly connected to the fixed cover, one end of the top of the fixed cover is fixedly connected to the motor, the cooling mechanism is arranged below the driving mechanism, the cooling mechanism comprises a liquid storage cylinder and an annular water spray pipe, the liquid storage cylinder is fixedly connected to the fixed cover, the bottom of the liquid storage cylinder is connected to an annular water spray pipe and is arranged below the cooling mechanism, the drilling mechanism comprises a spline sleeve, a spline shaft and a drill bit, the spline sleeve is rotatably connected to the liquid storage cylinder, and the upper and lower ends extend to the outside of the liquid storage cylinder respectively, the spline sleeve is slidably connected to the spline shaft inside, and the upper and lower ends extend to the outside of the spline sleeve respectively, and the bottom of the spline shaft is fixedly connected to the drill bit; the present invention can cool the drill bit through the design of the cooling mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, in particular to a drilling machine for road construction. Background Art

[0002] During road construction, it is usually necessary to pre-bury pipelines, install traffic facilities, and repair and grout the road surface, during which it is necessary to drill holes in the road.

[0003] A search revealed a Chinese patent with publication number CN112878906B, which discloses a road drilling machine for traffic engineering. The machine includes a traveling device with a guide device provided inside. The traveling device allows workers to move the machine more conveniently, which helps reduce workload and save physical effort. It also allows workers to quickly perform position calibration, which helps improve drilling efficiency. The guide device, drilling device, trigger device, automatic control device, and reciprocating device cooperate to automatically calibrate and drill the mounting holes. This allows the machine to drill all four mounting holes after a single position calibration, eliminating the need to calibrate each mounting hole. This saves time and effort, increases drilling efficiency, reduces human error rates, and increases the probability of successful barrier installation.

[0004] In the prior art, when a drilling machine is drilling a road, the friction between the drill bit and the ground causes the drill bit to generate a large amount of heat. Traditionally, cooling water is sprayed on the drill bit through equipment such as a water pump and a water spray pipe to cool the drill bit. However, this method requires a separate water pump to transport the cooling water, which increases the cost of equipment manufacturing and use. Summary of the Invention

[0005] The object of the present invention is to provide a drilling machine for road construction, so as to solve the problem that the existing drilling machine is inconvenient for cooling the drill bit.

[0006] To achieve the above object, the present invention provides the following technical solution: a drilling machine for road construction, comprising:

[0007] The driving mechanism includes a cylinder, a fixed cover and a motor, wherein the output end of the cylinder is fixedly connected to the fixed cover, and one end of the top of the fixed cover is fixedly connected to the motor;

[0008] A cooling mechanism is provided below the driving mechanism, the cooling mechanism comprising a liquid storage cylinder and an annular water spray pipe, the liquid storage cylinder is fixedly connected to the fixed cover, and the annular water spray pipe is connected below the liquid storage cylinder;

[0009] The drilling mechanism is arranged below the cooling mechanism, and the drilling mechanism includes a spline sleeve, a spline shaft and a drill bit. The spline sleeve is rotatably connected to the liquid storage cylinder, and the upper and lower ends extend to the outside of the liquid storage cylinder respectively. The spline sleeve is slidably connected to the inside of the spline sleeve, and the upper and lower ends extend to the outside of the spline sleeve respectively. The drill bit is fixedly connected to the bottom of the spline shaft.

[0010] Preferably, the output end of the motor is fixedly connected to a transmission shaft, the bottom of the transmission shaft is fixedly connected to a first gear, the top of the outer wall of the spline sleeve is fixedly connected to a second gear, and the first gear is meshed with the second gear.

[0011] Preferably, the transmission shaft is fixedly connected to a transmission plate above the first gear, the transmission plate is tilted, the top of the spline shaft is rotatably connected to a connecting column, one end of the connecting column is rotatably connected to two rollers, the two rollers are respectively arranged on the upper and lower sides of the transmission plate, and are rollingly connected to the transmission plate.

[0012] Preferably, one end of the bottom of the side wall of the liquid storage cylinder is connected to a connecting pipe, and the connecting pipe is connected to the annular water spray pipe.

[0013] Preferably, it further comprises a vehicle body, one end of the vehicle body is fixedly connected to a support arm, and the cylinder is fixedly connected to one end of the support arm.

[0014] Preferably, a water tank is fixedly connected to the top of the vehicle body, one end of the water tank is connected to a hose, and one end of the hose is connected to the top of the side wall of the liquid storage cylinder.

[0015] Preferably, both ends of the connecting column are fixedly connected to sliding rods respectively, and the bottoms of the two sliding rods are commonly fixedly connected to a movable plate, and the movable plate is slidably connected to the liquid storage cylinder.

[0016] Preferably, a plurality of sleeves are slidably connected to the surface of the movable plate, a plurality of water holes are provided on the side wall of the sleeve, a blocking block is fixedly connected to the bottom of the sleeve, and the blocking block is movably overlapped with the movable plate.

[0017] Preferably, the top of the movable plate is fixedly connected to a spring at the sleeve, and the top of the spring is fixedly connected to the top of the sleeve.

[0018] Preferably, a first one-way valve is installed at one end of the connecting pipe, and a second one-way valve is installed at one end of the flexible pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention drills a hole in a road through the design of a driving mechanism and a drilling mechanism, wherein a motor drives a transmission shaft, which drives a first gear to rotate, thereby driving a second gear, a spline sleeve, a spline shaft and a drill bit to rotate, and a cylinder drives the drill bit to move downward, so that the drill bit can drill a hole in the road smoothly;

[0021] The present invention can cool down the drill bit through the design of the cooling mechanism, wherein the connecting column drives the sliding rod and the movable plate to move up and down. When the movable plate moves downward, the cooling water in the liquid reservoir below the movable plate is pushed by the movable plate to flow through the connecting pipe to the annular water spray pipe and is sprayed out from the nozzle at the bottom of the annular water spray pipe, thereby cooling the drill bit.

[0022] The present invention moves the movable plate downward, so that the negative pressure generated in the space above the movable plate inside the liquid storage cylinder can draw the cooling water in the water tank into the liquid storage cylinder through the hose, so as to facilitate subsequent cooling of the drill bit. When the movable plate moves upward, the sleeve and the block will slide on the movable plate under the action of the hydraulic pressure from above and the negative pressure suction from below. At this time, the spring will contract, and the cooling water above the movable plate will flow through the water hole on the sleeve to the bottom of the movable plate, so that the movable plate can subsequently push the cooling water into the annular water spray pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 Schematic diagram of the side cross-section structure of the fixed cover and the liquid storage cylinder in the present invention;

[0025] Figure 3 for Figure 2 A local enlarged structural diagram in FIG.

[0026] Figure 4 Schematic diagram of the driving mechanism structure of the present invention;

[0027] Figure 5 Schematic diagram of the cooling mechanism structure of the present invention;

[0028] Figure 6 Schematic diagram of the drilling mechanism structure of the present invention;

[0029] Figure 7 Schematic diagram of the connection structure between the movable plate and the sleeve in the present invention;

[0030] Figure 8 It is a schematic diagram of the sleeve structure of the present invention.

[0031] In the figure: 1. driving mechanism; 101. cylinder; 102. fixed cover; 103. motor; 104. transmission shaft; 105. first gear; 106. transmission plate; 2. cooling mechanism; 201. liquid storage cylinder; 202. annular water spray pipe; 203. connecting pipe; 204. hose; 205. slide rod; 206. movable plate; 207. sleeve; 208. water hole; 209. blocking block; 210. spring; 211. first one-way valve; 212. second one-way valve; 3. drilling mechanism; 301. spline sleeve; 302. spline shaft; 303. drill bit; 304. second gear; 305. connecting column; 306. roller; 4. vehicle body; 5. support arm; 6. water tank. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] See also Figures 1-8 The present invention provides a technical solution: a drilling machine for road construction, characterized in that it includes a driving mechanism 1, a cooling mechanism 2 and a drilling mechanism 3. The driving mechanism 1 includes a cylinder 101, a fixed cover 102 and a motor 103. The output end of the cylinder 101 is fixedly connected to the fixed cover 102, and one end of the top of the fixed cover 102 is fixedly connected to the motor 103. The cooling mechanism 2 is arranged below the driving mechanism 1. The cooling mechanism 2 includes a liquid storage cylinder 201 and an annular water spray pipe 202. The liquid storage cylinder 201 is fixedly connected to the fixed cover 102. The lower part of the liquid storage cylinder 201 is connected to the annular water spray pipe 202 and is arranged below the cooling mechanism 2. The drilling mechanism 3 includes a spline sleeve 301, a spline shaft 302 and a drill bit 303, a spline sleeve 301 is rotatably connected to the liquid storage cylinder 201, and the upper and lower ends extend to the outside of the liquid storage cylinder 201 respectively, a spline shaft 302 is slidably connected inside the spline sleeve 301, and the upper and lower ends extend to the outside of the spline sleeve 301 respectively, and the bottom of the spline shaft 302 is fixedly connected to the drill bit 303; the output end of the motor 103 is fixedly connected to the transmission shaft 104, the bottom of the transmission shaft 104 is fixedly connected to the first gear 105, the top of the outer wall of the spline sleeve 301 is fixedly connected to the second gear 304, and the first gear 105 is meshed with the second gear 304; it also includes a car body 4, one end of the car body 4 is fixedly connected to the support arm 5, and the cylinder 101 is fixedly connected to one end of the support arm 5;

[0034] Specifically, when it is necessary to drill a hole in the road, the vehicle body 4 is first moved to the position where the hole needs to be drilled, and then the transmission shaft 104 is driven to rotate by the motor 103, thereby driving the first gear 105 to rotate, and then driving the second gear 304 and the spline sleeve 301 to rotate. When the spline sleeve 301 rotates, it will drive the spline shaft 302 to rotate, thereby driving the drill bit 303 to rotate, and then the drill bit 303 is driven downward by the cylinder 101, so that the drill bit 303 can drill the road smoothly. Since the drill bit 303 generates a lot of heat during the long drilling process, the heat The amount will cause the drill bit 303 to be more prone to plastic deformation, which will in turn cause increased wear. During the drilling process, the drill bit 303 needs to be cooled. At this time, cooling water can be transported to the liquid storage cylinder 201. The cooling water in the liquid storage cylinder 201 will flow into the annular water spray pipe 202 and finally be sprayed out from the nozzle at the bottom of the annular water spray pipe 202, thereby cooling the drill bit 303. The nozzle at the bottom of the annular water spray pipe 202 is tilted so that the sprayed cooling water can smoothly contact the drill bit 303. In addition, in the process of cooling the drill bit 303, the cooling water can also reduce the generation of dust.

[0035] like Figures 2 to 3 As shown, the transmission shaft 104 is located above the first gear 105 and is fixedly connected to a transmission plate 106. The transmission plate 106 is arranged obliquely. The top of the spline shaft 302 is rotatably connected to a connecting column 305. One end of the connecting column 305 is rotatably connected to two rollers 306. The two rollers 306 are respectively arranged on the upper and lower sides of the transmission plate 106 and are rollingly connected to the transmission plate 106.

[0036] Specifically, during the rotation of the transmission shaft 104, the transmission disk 106 will be driven to rotate. Since the transmission disk 106 is set at an angle, and the two rollers 306 are respectively connected to the upper and lower surfaces of the transmission disk 106 in a rolling manner, when the transmission disk 106 rotates, the rollers 306 will be driven to move back and forth up and down, thereby driving the connecting column 305, the spline shaft 302 and the drill bit 303 to move back and forth up and down. When the drill bit 303 reciprocates, it will assist in removing chips in the hole.

[0037] like Figures 5 to 8As shown, one end of the bottom of the side wall of the liquid storage cylinder 201 is connected to a connecting pipe 203, and the connecting pipe 203 is connected to the annular water spray pipe 202; the top of the vehicle body 4 is fixedly connected to a water tank 6, and one end of the water tank 6 is connected to a hose 204, and one end of the hose 204 is connected to the top of the side wall of the liquid storage cylinder 201; the two ends of the connecting column 305 are respectively fixedly connected to the sliding rods 205, and the bottoms of the two sliding rods 205 are fixedly connected to the movable plate 206, and the movable plate 206 is slidably connected to the liquid storage cylinder 201; the movable plate The surface of 206 is slidably connected to multiple sleeves 207, and the side wall of the sleeve 207 is provided with multiple water holes 208. The bottom of the sleeve 207 is fixedly connected to a block 209, and the block 209 is movably overlapped with the movable plate 206; the top of the movable plate 206 is located at the sleeve 207 and is fixedly connected to a spring 210, and the top of the spring 210 is fixedly connected to the top of the sleeve 207; a first one-way valve 211 is installed at one end of the connecting pipe 203, and a second one-way valve 212 is installed at one end of the hose 204;

[0038] Specifically, the design of the first one-way valve 211 allows the cooling water in the connecting pipe 203 to flow only toward the annular water spray pipe 202, and the design of the second one-way valve 212 allows the cooling water in the hose 204 to flow toward the liquid storage cylinder 201. When the connecting column 305 moves up and down, it will drive the two sliding rods 205 to move up and down, thereby driving the movable plate 206 to move up and down. When the movable plate 206 moves upward, the hydraulic pressure above the movable plate 206 in the liquid storage cylinder 201 will increase, and at the same time, the space below the movable plate 206 in the liquid storage cylinder 201 will generate negative pressure. At this time, the sleeve 207 and the block 209 will slide on the movable plate 206 under the action of the hydraulic pressure from the top and the negative pressure suction from the bottom. At this time, the spring 210 will contract, and the cooling water above the movable plate 206 will flow through the water hole 208 on the sleeve 207 to the bottom of the movable plate 206. When the movable plate 206 moves downward, the liquid storage cylinder At the same time, the negative pressure generated in the space above the movable plate 206 inside the liquid reservoir 201 can draw the cooling water in the water tank 6 into the liquid reservoir 201 through the hose 204 for subsequent use in cooling the drill bit 303.

[0039] Working principle: When it is necessary to drill a hole in the road, the vehicle body 4 is first moved to the position where a hole needs to be drilled, and then the transmission shaft 104 is driven to rotate by the motor 103, thereby driving the first gear 105 to rotate, and then driving the second gear 304 and the spline sleeve 301 to rotate. When the spline sleeve 301 rotates, it will drive the spline shaft 302 to rotate, thereby driving the drill bit 303 to rotate, and then the drill bit 303 is driven downward by the cylinder 101, so that the drill bit 303 can drill the road smoothly. During the rotation of the transmission shaft, the transmission disk 106 is driven to rotate. Since the transmission disk 106 is tilted and the two rollers 306 are respectively connected to the upper and lower surfaces of the transmission disk 106 in a rolling manner, when the transmission disk 106 rotates, the rollers 306 are driven to reciprocate up and down, thereby driving the connecting column 305, the spline shaft 302 and the drill bit 303 to reciprocate up and down. When the drill bit 303 reciprocates, it will assist in removing chips in the hole;

[0040] When the connecting column 305 moves up and down, it will drive the two sliding rods 205 to move up and down, and then drive the moving plate 206 to move up and down. When the moving plate 206 moves downward, the hydraulic pressure below the moving plate 206 in the liquid reservoir 201 will increase, and at the same time, negative pressure will be generated in the space above the moving plate 206 in the liquid reservoir 201. At this time, the sleeve 207 and the block 209 will slide on the moving plate 206 under the hydraulic pressure below, the negative pressure suction above, and the rebound action of the spring 210, so that the block 209 and the bottom of the moving plate 206 will fit tightly together. At this time, the cooling water below the moving plate 206 in the liquid reservoir 201 will be completely separated. At this time, the cooling water below the moving plate 206 in the liquid reservoir 201 will flow to the annular water spray pipe 202 through the connecting pipe 203 under the push of the moving plate 206, and be sprayed out from the nozzle at the bottom of the annular water spray pipe 202, thereby cooling the drill bit 303;

[0041] At the same time, the negative pressure generated in the space above the movable plate 206 inside the liquid storage cylinder 201 can draw the cooling water in the water tank 6 into the liquid storage cylinder 201 through the hose 204. At this time, the cooling water flowing into the liquid storage cylinder 201 through the hose 204 will be above the movable plate 206. When the movable plate 206 moves upward, the hydraulic pressure inside the liquid storage cylinder 201 above the movable plate 206 will increase. At the same time, negative pressure will be generated in the space below the movable plate 206 inside the liquid storage cylinder 201. At this time, the sleeve 207 and the block 209 will slide on the movable plate 206 under the action of the hydraulic pressure from above and the negative pressure suction from below. At this time, the spring 210 will contract, and the cooling water above the movable plate 206 will pass through the water hole 208 on the sleeve 207 to flow to the bottom of the movable plate 206, so that the cooling water can be smoothly pushed to the annular water spray pipe 202 when the movable plate 206 moves downward subsequently.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling machine for road construction, characterized in that: include: A driving mechanism (1), the driving mechanism (1) comprising a cylinder (101), a fixed cover (102) and a motor (103), wherein an output end of the cylinder (101) is fixedly connected to the fixed cover (102), and a top end of the fixed cover (102) is fixedly connected to the motor (103); A cooling mechanism (2) is provided below the driving mechanism (1), the cooling mechanism (2) comprising a liquid storage cylinder (201) and an annular water spray pipe (202), the liquid storage cylinder (201) being fixedly connected to the fixed cover (102), and the annular water spray pipe (202) being connected below the liquid storage cylinder (201); A drilling mechanism (3) is provided below the cooling mechanism (2), the drilling mechanism (3) comprising a spline sleeve (301), a spline shaft (302) and a drill bit (303), the spline sleeve (301) being rotatably connected to the liquid storage cylinder (201), and having upper and lower ends respectively extending to the outside of the liquid storage cylinder (201), the spline sleeve (301) being slidably connected to the spline shaft (302) inside, and having upper and lower ends respectively extending to the outside of the spline sleeve (301), the bottom of the spline shaft (302) being fixedly connected to the drill bit (303), and the top of the spline shaft (302) being rotatably connected to the liquid storage cylinder (201), and having upper and lower ends respectively extending to the outside of the spline sleeve (301), A connecting column (305) is connected, and both ends of the connecting column (305) are fixedly connected to a sliding rod (205), and the bottoms of the two sliding rods (205) are fixedly connected to a movable plate (206), and the movable plate (206) is slidably connected to the liquid storage cylinder (201). The surface of the movable plate (206) is slidably connected to a plurality of sleeves (207), and the side wall of the sleeve (207) is provided with a plurality of water holes (208). The bottom of the sleeve (207) is fixedly connected to a blocking block (209), and the blocking block (209) is movably overlapped with the movable plate (206).

2. A road construction drilling machine according to claim 1, characterized in that: The output end of the motor (103) is fixedly connected to a transmission shaft (104), the bottom of the transmission shaft (104) is fixedly connected to a first gear (105), the top of the outer wall of the spline sleeve (301) is fixedly connected to a second gear (304), and the first gear (105) is meshedly connected to the second gear (304).

3. A road construction drilling machine according to claim 2, characterized in that: The transmission shaft (104) is located above the first gear (105) and is fixedly connected to a transmission disk (106). The transmission disk (106) is arranged tilted. One end of the connecting column (305) is rotatably connected to two rollers (306). The two rollers (306) are respectively arranged on the upper and lower sides of the transmission disk (106) and are rollingly connected to the transmission disk (106).

4. A road construction drilling machine according to claim 3, characterized in that: One end of the bottom of the side wall of the liquid storage cylinder (201) is connected to a connecting pipe (203), and the connecting pipe (203) is connected to the annular water spray pipe (202).

5. A road construction drilling machine according to claim 4, characterized in that: It also includes a vehicle body (4), one end of the vehicle body (4) is fixedly connected to a support arm (5), and the cylinder (101) is fixedly connected to one end of the support arm (5).

6. A road construction drilling machine according to claim 5, characterized in that: A water tank (6) is fixedly connected to the top of the vehicle body (4), one end of the water tank (6) is connected to a hose (204), and one end of the hose (204) is connected to the top of the side wall of the liquid storage cylinder (201).

7. A road construction drilling machine according to claim 6, characterized in that: The top of the movable plate (206) is located at the sleeve (207) and is fixedly connected to a spring (210), and the top of the spring (210) is fixedly connected to the top of the sleeve (207).

8. A road construction drilling machine according to claim 7, characterized in that: A first one-way valve (211) is installed at one end of the connecting pipe (203), and a second one-way valve (212) is installed at one end of the flexible pipe (204).

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