A road surface grinding device

Abstract

The application discloses a highway pavement polishing device, which comprises a moving unit, a base arranged on the moving unit, a fixing seat arranged on the base, a motor arranged on the fixing seat, a rotating shaft of the motor connected with a polishing disc, and a dustproof device arranged on the fixing seat.

Description

Technical Field

[0001] This invention relates to a road surface grinding device, belonging to the field of road surface grinding tools. Background Technology

[0002] With continuous economic development and progress, my country's comprehensive strength has been constantly enhanced, including the continuous increase in the mileage of its highways. During highway construction and maintenance, road surfaces need roughening, leveling, and cleaning / renovation of dirt and grime. Currently, road surface grinding machines are mainly used for this purpose. However, existing grinding equipment cannot effectively grind the road surface, and the grinding process requires manual force, resulting in high labor intensity, cumbersome operation, and low efficiency. Furthermore, using grinding machines generates a large amount of dust, which affects the construction environment and adversely impacts the health of workers. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a road surface grinding device. The technical problem to be solved is that currently, road surface grinding machines are mainly used for this purpose. However, existing grinding devices cannot effectively grind the road surface, and the grinding process requires manual force, which is labor-intensive, cumbersome, and inefficient. Furthermore, when using a grinding machine to grind the road surface, a lot of dust is generated, which affects the construction environment and has an adverse impact on the health of workers. This invention can overcome the shortcomings of the existing technology.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] This invention discloses a road surface grinding device, which includes a movable unit, a base on the movable unit, a fixed seat on the base, a motor on the fixed seat, the motor shaft being connected to the grinding disc, and a dust prevention device on the fixed seat.

[0006] The aforementioned dust control device includes an annular cavity within a fixed base, with a water inlet pipe connected to the upper end of the annular cavity, and water outlet holes evenly distributed around the lower end face of the annular cavity.

[0007] A fan-shaped disk is provided on one side of the base. A push rod is hinged to the center of the fan-shaped disk. Several evenly distributed positioning holes are provided on the fan-shaped disk. An insertion hole is provided on the push rod. A positioning bolt is connected to one of the positioning holes. One end of the positioning bolt is embedded in the insertion hole.

[0008] An loading and unloading unit is provided between the upper motor shaft and the grinding disc. The loading and unloading unit includes a connecting seat on the grinding disc, the motor shaft and the connecting shaft are connected, and a locking device and an unlocking device that engage with the connecting seat are respectively provided at the lower end of the connecting shaft.

[0009] The lower part of the aforementioned connecting shaft consists of a fixed first semi-cylinder and a spliced ​​second semi-cylinder. There is a downward-facing semi-circular groove at the center of both the first and second semi-cylinders. The locking device and the unlocking device are located at the lower and upper parts of the circular groove formed by the first and second semi-cylinders, respectively.

[0010] The aforementioned locking device includes a mounting hole on the connecting seat, a fixing groove extending radially on the inner wall of the mounting hole, a sliding groove on the circumferential surface of the connecting shaft, the sliding groove being located at the connecting surface of the first semi-cylinder and the second semi-cylinder, a slider being provided in the sliding groove, the two edges of the slider at the end away from the connecting shaft being chamfered, and a first spring in a compressed state being provided between the slider and the bottom of the sliding groove, the slider engaging with the fixing groove in the locked state.

[0011] The aforementioned unlocking device includes a first circular groove on the upper inner wall of the first and second semi-cylinders, a through groove between the first circular groove and the sliding groove, a disc that can move up and down installed in the first through groove, a long rod installed in the through groove on the lower end face of the disc, a wedge-shaped inclined surface on the side of the end of the long rod near the first circular groove, a slot that cooperates with the wedge on the upper part of the slider, and the long rod in its maximum downward extension state. The wedge is inserted into the slot to retract the slider into the sliding groove. An upward retraction device and a downward pushing device for the long rod are provided on the connecting shaft.

[0012] The aforementioned pushing device includes a second spring in a compressed state located between the upper end face of the disk and the top of the first circular groove.

[0013] The aforementioned retracting device includes a vertical through hole in the center of a disc, a second annular groove on the inner wall of the disc, a long shaft in the vertical through hole, a vertically downward strip groove on the upper end face of the long shaft, a horizontal groove connecting to the outer wall at the lower part of the strip groove, a drive pin in the strip groove, a sliding block fixed at the lower end of the drive pin, the sliding block being located in the horizontal groove and capable of retracting inward or extending outward to engage with the second annular groove, the drive pin being capable of moving closer to or further away from the axis of the long shaft in the strip groove, a third spring in a compressed state between the horizontal groove and the sliding block, a through hole in the upper part of the circular groove, an operating rod for pushing the drive pin in the through hole, and a fourth spring between the long shaft and the operating rod.

[0014] The aforementioned operating lever has a circular hole at one end of the third circular groove, and the transmission pin is inserted into the circular hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention enables simultaneous watering during road surface grinding using a dust-prevention device, effectively preventing dust pollution from the grinding equipment and improving its environmental performance. It also allows for easy observation of the grinding disc's position, enhancing usability, grinding efficiency, and operator comfort. The device provides rapid and efficient road surface grinding, is simple to operate, and convenient to use. The movable unit allows for multiple grinding passes, resulting in a large grinding area and excellent grinding effect.

[0017] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will now be described in further detail with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a road surface grinding device according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the drive unit and the grinding unit in a road surface grinding device according to an embodiment of the present invention.

[0021] Figure 3 This is a cross-sectional structural diagram of the drive unit in a road surface grinding device according to an embodiment of the present invention.

[0022] Figure 4 In a road surface grinding device provided by an embodiment of the present invention Figure 1 A partially enlarged structural diagram.

[0023] Figure 5 This is a schematic diagram of the disassembly unit connection in a road surface grinding device according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the disassembly unit in a road surface grinding device according to an embodiment of the present invention, showing the disassembly unit separating.

[0025] Figure 7 This is an exploded structural diagram of the disassembly unit in a road surface grinding device according to an embodiment of the present invention.

[0026] The components include: a moving unit 1; a base 2; a fixed seat 3; a motor 4; a grinding disc 5; a dustproof device 6; an annular cavity 6-1; a water inlet pipe 6-2; a water outlet 6-3; a fan-shaped disc 7; a push rod 8; a connecting seat 9; a locking device 10; a mounting hole 10-1; a fixing groove 10-2; a sliding groove 10-3; a slider 10-4; a first spring 10-5; an unlocking device 11; a first circular groove 11-1; a through groove 11-2; and a disc 11- 3; Long rod 11-4; Wedge 11-5; Groove 11-6; First semi-cylinder 12; Second semi-cylinder 13; Upper retraction device 14; Vertical through hole 14-1; Second annular groove 14-2; Long shaft 14-3; Strip groove 14-4; Horizontal groove 14-5; Transmission pin 14-6; Sliding block 14-7; Third spring 14-8; Fourth spring 14-9; Lowering device 15; Second spring 15-1; Operating lever 16. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0028] Example 1

[0029] like Figures 1-4 As shown, the present invention discloses a road surface grinding device, including a moving unit 1 and a driving device. The moving unit 1 includes a base 2, and a fixed seat 3 is provided on the base 2. The driving device is a motor 4 provided on the fixed seat 3. The rotating shaft of the motor 4 is connected to the grinding disc 5. A dust prevention device 6 is provided on the fixed seat 3.

[0030] Specifically, the lower end face of the fixed base 3 is provided with an annular boss, the outer diameter of which is larger than the outer diameter of the grinding disc 5. The dust prevention device 6 includes an annular cavity 6-1 provided in the annular boss of the fixed base 3. The annular cavity 6-1 can hold water. A water inlet pipe 6-2 is connected to the upper end of the annular cavity 6-1. Water outlet holes 6-3 are evenly distributed around the lower end face of the annular cavity 6-1. Therefore, during the grinding process, water flows to the ground through the water outlet holes 6-3, thereby preventing dust and debris from flying up. An annular cover plate is provided on the annular cavity 6-1, and the water inlet pipe 6-2 is provided on the annular cover plate.

[0031] Furthermore, a fan-shaped disk 7 is provided on one side of the base 2, and a push rod 8 is hinged to the center of the fan-shaped disk 7. The fan-shaped disk 7 is provided with several evenly distributed positioning holes, and the push rod 8 is provided with an insertion hole. One of the positioning holes is connected to a positioning bolt, and one end of the positioning bolt is embedded in the insertion hole. The operator can push the base 2 with the push rod 8, and adjust the tilt angle of the push rod 8 according to the height of the operator by cooperating with the positioning bolt and the positioning hole.

[0032] Example 2

[0033] Reference Figure 1-7 This is the second embodiment of the present invention, which is based on the previous embodiment and differs from the previous embodiment in that:

[0034] A loading and unloading unit is provided between the motor 4 shaft and the grinding disc 5. The loading and unloading unit includes a connecting seat 9 on the grinding disc 5. The motor 4 shaft is connected to the connecting shaft. At the lower end of the connecting shaft, a locking device 10 and an unlocking device 11 are respectively provided to engage with the connecting seat 9. The loading and unloading unit is for replacing the grinding disc 5, the locking device 10 is for connecting to the grinding disc 5, and the unlocking device 11 is for disassembly.

[0035] The lower part of the connecting shaft consists of a fixed first semi-cylinder 12 and a spliced ​​second semi-cylinder 13. There is a downward-facing semi-circular groove at the center of both the first semi-cylinder 12 and the second semi-cylinder 13. The locking device 10 and the unlocking device 11 are located at the lower and upper parts of the circular groove formed by the first semi-cylinder 12 and the second semi-cylinder 13, respectively. The upper end of the connecting shaft is connected to the output shaft of the motor 4 or is integrally set with the output shaft. The first semi-cylinder 12 is integrally formed or welded to the connecting shaft. After the locking device 10 and the unlocking device 11 are installed in the second semi-cylinder 13 and the first semi-cylinder 12, the second semi-cylinder 13 is connected to the first semi-cylinder 12 and then connected and inserted into the connecting seat 9 of the grinding disc 5.

[0036] The locking device 10 includes a mounting hole 10-1 on the connecting seat 9, a fixing groove 10-2 extending radially on the inner wall of the mounting hole 10-1, and a sliding groove 10-3 on the circumferential surface of the connecting shaft. The sliding groove 10-3 is located at the connecting surface of the first semi-cylinder 12 and the second semi-cylinder 13. A slider 10-4 is provided in the sliding groove 10-3. The two edges of the slider 10-4 away from the connecting shaft are chamfered. A first spring 10-5 in a compressed state is provided between the slider 10-4 and the bottom of the sliding groove 10-3. In the locked state, the slider 10-4 is engaged with the fixing groove 10-2. The chamfer on the slider 10-4 facilitates the loading and unloading of the slider 10-4 and the fixing groove 10-2.

[0037] The unlocking device 11 includes a first circular groove 11-1 provided on the upper inner wall of the first semi-cylinder 12 and the second semi-cylinder 13. A through groove 11-2 is provided between the first circular groove 11-1 and the sliding groove 10-3. A disc 11-3 that can move up and down is installed in the first through groove 11-2. A long rod 11-4 installed in the through groove 11-2 is provided on the lower end face of the disc 11-3. A wedge 11-5 is provided on the side of the end of the long rod 11-4 near the first circular groove 11-1. A slot 11-6 that cooperates with the wedge 11-5 is provided on the upper part of the slider 10-4. When the long rod 11-4 is in its maximum downward extension state, the wedge 11-5 is inserted into the slot 11-6 to retract the slider 10-4 into the sliding groove 10-3. After the slider 10-4 retracts into the sliding groove 10-3, it is convenient to separate the connecting shaft from the connecting seat 9 of the grinding disc 5.

[0038] The connecting shaft is equipped with an upward retraction device 14 and a downward pushing device 15 for the long rod 11-4.

[0039] The pushing device 15 includes a second spring 15-1 in a compressed state located between the upper end face of the disc 11-3 and the top of the first circular groove 11-1.

[0040] The retracting device 14 includes a vertical through hole 14-1 in the middle of the disc 11-3, a second annular groove 14-2 on the inner wall of the disc 11-3, a long shaft 14-3 inside the vertical through hole 14-1, a vertically downward strip groove 14-4 on the upper end face of the long shaft 14-3, a horizontal groove 14-5 connecting to the outer wall at the lower part of the strip groove 14-4, a drive pin 14-6 inside the strip groove 14-4, and a sliding block 14-7 fixed at the lower end of the drive pin 14-6. The sliding block 14-7 is located inside the horizontal groove 14-5 and can retract inward or extend outward. The second annular grooves 14-2 are interlocked. The transmission pin 14-6 can move closer to or further away from the axis of the long shaft 14-3 within the strip groove 14-4. A third spring 14-8 in a compressed state is provided between the inner side of the horizontal groove 14-5 and the sliding block 14-7. A through hole is provided at the upper part of the circular groove. An operating rod 16 for pushing the transmission pin 14-6 is provided in the through hole. A fourth spring 14-9 is provided between the long shaft 14-3 and the operating rod 16. A circular hole is provided at one end of the operating rod 16 on the connecting shaft located in the third circular groove. The transmission pin 14-6 is inserted into the circular hole.

[0041] During installation, slider 10-4 and first spring 10-5 are installed into slide groove 10-3. Long shaft 14-3 is installed inside disc 11-3. Drive pin 14-6, slider 14-7, third spring 14-8, and operating rod 16 are installed on long shaft 14-3. Fourth spring 14-9 is placed on the upper end of the circular groove formed by first semi-cylinder 12 and second semi-cylinder 13. Disc 11-3 and second spring 15-1 are installed in first circular groove 11-1. Long rod 11-4 is inserted into through groove 11-2. Disc 11-3 is pushed upwards, causing slider 14-7 to engage with second annular groove 14-2, separating long rod 11-4 from slot 11-6 of slider 10-4. Then, the first semi-cylinder 12 and second semi-cylinder 13 are inserted as a whole into mounting hole 10-1 of connector 9. During this process, slider 10-4 is pressed into slide groove 10-3. The two edges of the slider 10-4 away from the connecting shaft are chamfered to facilitate retraction into the groove 10-3 during insertion. When the first semi-cylinder 12 and the second semi-cylinder 13 are inserted into the bottom of the mounting hole 10-1, the first semi-cylinder 12 and the second semi-cylinder 13 are rotated as a whole, thus locking the slider 10-4 into the fixing groove 10-2. When disassembly is required, the transmission pin 14-6 is pushed inward by the operating rod 16. The transmission pin 14-6 drives the sliding block 14-7 to retract inward, thus separating the sliding block 14-7 from the second annular groove 14-2. At this time, under the action of the second spring 15-1, the disc 11-3 moves downward, allowing the wedge-shaped end 11-5 of the long rod 11-4 to be inserted into the groove 11-6 of the slider 10-4, forcing the slider 10-4 to retract into the groove 10-3, thereby facilitating the separation of the first semi-cylinder 12 and the second semi-cylinder 13 from the connecting seat 9, thus achieving disassembly.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical solution of the present invention and based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A road surface grinding device, comprising a movable unit (1), a base (2) on the movable unit (1), movable wheels and a fixed seat (3) on the base (2), and a motor (4) on the fixed seat (3), the rotating shaft of the motor (4) being connected to a grinding disc (5), characterized in that: A dust prevention device (6) is provided on the fixed base (3); A loading and unloading unit is provided between the motor (4) shaft and the grinding disc (5). The loading and unloading unit includes a connecting seat (9) provided on the grinding disc (5), the motor (4) shaft is connected to the connecting shaft, and a locking device (10) and an unlocking device (11) are respectively provided at the lower end of the connecting shaft to engage with the connecting seat (9). The lower part of the connecting shaft is composed of a fixed first semi-cylinder (12) and a spliced ​​second semi-cylinder (13). There are downward-facing semi-circular grooves at the center of the first semi-cylinder (12) and the second semi-cylinder (13). The locking device (10) and the unlocking device (11) are located at the lower and upper parts of the circular groove formed by the first semi-cylinder (12) and the second semi-cylinder (13), respectively. The locking device (10) includes a mounting hole (10-1) on the connecting seat (9), a fixing groove (10-2) extending radially on the inner side wall of the mounting hole (10-1), and a sliding groove (10-3) on the circumferential surface of the connecting shaft. The sliding groove (10-3) is located at the connecting surface of the first semi-cylinder (12) and the second semi-cylinder (13). A slider (10-4) is provided in the sliding groove (10-3). The two edges of the slider (10-4) away from the connecting shaft are chamfered. A first spring (10-5) in a compressed state is provided between the slider (10-4) and the bottom of the sliding groove (10-3). In the locked state, the slider (10-4) is engaged with the fixing groove (10-2). The unlocking device (11) includes a first circular groove (11-1) provided on the upper inner wall of the first semi-cylinder (12) and the second semi-cylinder (13), a through groove (11-2) provided between the first circular groove (11-1) and the sliding groove (10-3), a disc (11-3) that can move up and down is installed in the first through groove (11-2), and a long rod (11-4) installed in the through groove (11-2) is provided on the lower end face of the disc (11-3), and at the end of the long rod (11-4) A wedge-shaped section (11-5) is provided on the side near the first circular groove (11-1). A slot (11-6) that cooperates with the wedge (11-5) is provided on the upper part of the slider (10-4). When the long rod (11-4) is in its maximum downward extension state, the wedge (11-5) is inserted into the slot (11-6) to retract the slider (10-4) into the groove (10-3). An upward retraction device (14) and a downward pushing device (15) for the long rod (11-4) are provided on the connecting shaft. The pushing device (15) includes a second spring (15-1) in a compressed state between the upper end face of the disk (11-3) and the top of the first circular groove (11-1). The upper receiving device (14) includes a vertical through hole (14-1) in the middle of a disc (11-3), a second annular groove (14-2) on the inner wall of the disc (11-3), a long shaft (14-3) in the vertical through hole (14-1), a vertically downward strip groove (14-4) on the upper end face of the long shaft (14-3), a horizontal groove (14-5) connecting to the outer wall at the lower part of the strip groove (14-4), a transmission pin (14-6) in the strip groove (14-4), and a sliding block (14-7) fixed at the lower end of the transmission pin (14-6). 4-7) Located in the horizontal groove (14-5) and can retract inward or extend outward to engage with the second annular groove (14-2). The transmission pin (14-6) can move closer to or further away from the axis of the long shaft (14-3) in the strip groove (14-4). A third spring (14-8) in a compressed state is provided between the inner side of the horizontal groove (14-5) and the sliding block (14-7). A through hole is provided at the upper part of the circular groove. An operating rod (16) for pushing the transmission pin (14-6) is provided in the through hole. A fourth spring (14-9) is provided between the long shaft (14-3) and the operating rod (16). The operating lever (16) has a circular hole at one end of the third circular groove, and the transmission pin (14-6) is inserted into the circular hole.

2. The road surface grinding device according to claim 1, characterized in that: The dust prevention device (6) includes an annular cavity (6-1) provided in the fixed base (3), an inlet pipe (6-2) connected to the upper end of the annular cavity (6-1), and water outlet holes (6-3) evenly distributed around the lower end face of the annular cavity (6-1).

3. The road surface grinding device according to claim 1, characterized in that: A fan-shaped disk (7) is provided on one side of the base (2). A push rod (8) is hinged at the center of the fan-shaped disk (7). Several evenly distributed positioning holes are provided on the fan-shaped disk (7). An insertion hole is provided on the push rod (8). One of the positioning holes is connected to a positioning bolt. One end of the positioning bolt is embedded in the insertion hole.

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