Road expansion joint cutting machine

Abstract

The utility model relates to a road expansion joint cutting machine, which belongs to the technical field of road construction and comprises a movable cart, a machine body, a cutting disc and a loading seat. A machine body is fixedly mounted at the top of the loading seat, and a cutting disc is mounted at an output shaft of the machine body; a lifting assembly for pushing the cutting disc to move downwards to be matched with rotation of the cutting disc to cut the road surface is arranged on the movable trolley; the loading seat is provided with a protection assembly which is attached to the road surface in a self-adaptive mode and located outside the cutting disc to prevent dust from rising. According to the road expansion joint cutting machine, when the arranged movable cart is pushed by hand to move, the arranged machine body drives the cutting disc to rotate and is matched with the arranged lifting assembly to drive the cutting disc to move downwards for cutting, and meanwhile the protection assembly is attached to the ground in a self-adaptive mode to prevent cutting dust from rising and chippings from splashing; and meanwhile, the dust collecting mechanism collects and stores dust generated by cutting, and the situation that the dust is inhaled by an operator to affect body health is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a road expansion joint cutting machine. Background Art

[0002] Road expansion joints are gaps set up to adapt to the expansion and contraction deformation of roads caused by temperature changes, foundation settlement and other reasons. In order to ensure the flatness and safety of the roads, road expansion joints need to be cut and maintained regularly. When cutting road expansion joints, professional road cutting machinery and tools are required to ensure the accuracy and efficiency of the cutting. When cutting road expansion joints, factors such as the material, thickness and width of the road need to be considered to ensure the quality and effect of the cutting.

[0003] A road expansion joint cutting machine is a mechanical device specially used for cutting road expansion joints. It is usually driven by electricity or hydraulics. The following are the general steps for cutting work of a road expansion joint cutting machine:

[0004] Preparation: Determine the location and length of the road expansion joint that needs to be cut, clean up the debris and debris on the cutting area, and ensure that the cutting machine can work smoothly.

[0005] Adjust the cutting machine: According to the width and depth of the road expansion joint, adjust the cutting machine's tool and cutting depth to ensure cutting accuracy and efficiency.

[0006] Start the cutting machine: Place the cutting machine at the location where cutting is required, start the electric or hydraulic system, and start the cutting machine to work.

[0007] Cutting: Operate the cutting machine and cut along the direction of the road expansion joint, maintaining a stable speed and pressure to ensure a smooth and smooth cutting.

[0008] Finish cutting: When the cutting reaches the specified depth and length, stop the cutting machine and clean up the debris and debris on the cutting surface.

[0009] Inspection and maintenance: Check whether the cut road expansion joints are flat and complete. If there are any damages or problems, they need to be repaired and handled in time to ensure road safety and smooth traffic.

[0010] It can be seen from the cutting operation of the above-mentioned existing road expansion joint cutting machine that it does not have the function of preventing dust from rising and debris from flying when cutting road expansion joints. Therefore, it is easy for the operator to inhale dust and affect his health, and the flying debris can easily cause personal injury. Therefore, the utility model designs a road expansion joint cutting machine with dust prevention and dust removal to solve this technical defect of the prior art. Utility Model Content

[0011] In view of the deficiencies in the prior art, the utility model provides a road expansion joint cutting machine with advantages such as dust prevention and dust removal.

[0012] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a road expansion joint cutting machine, comprising a mobile cart, a machine body, a cutting disc and a loading seat;

[0013] A fixed body is installed on the top of the loading seat, and a cutting disc is installed on the output shaft of the body;

[0014] The mobile cart is provided with a lifting assembly for pushing the cutting disc downward and cooperating with the cutting disc to rotate to cut the road surface;

[0015] The loading seat is provided with a protective component that adapts to the road surface and is located outside the cutting disc to prevent dust from rising;

[0016] The protection component is provided with a dust collecting mechanism for collecting dust generated by cutting.

[0017] As a preferred technical solution of the present invention, the lifting assembly includes a limiting slide groove provided on the left and right side walls of the inner cavity of the mobile cart and slidably connected to the loading seat, a mounting frame fixed to the top of the loading seat, and a mounting seat fixed to the top of the mobile cart;

[0018] Wherein, a hydraulic push rod is fixedly installed on the top of the mounting seat, and the push rod of the hydraulic push rod is fixedly installed on the mounting frame.

[0019] As an optimal technical solution of the present invention, the protective assembly includes a mounting tube threadedly connected to the left and right sides of the top of the loading seat, a telescopic spring is fixed inside the mounting tube, a movable rod that penetrates and extends to the bottom of the loading seat is fixed at the bottom of the telescopic spring, and a protective cover located outside the cutting disc is fixed between the bottoms of the movable rods.

[0020] As a preferred technical solution of the present invention, when the telescopic spring is in a fully extended state, the lower surface of the protective cover is aligned with the lower surface of the cutting disc.

[0021] As a preferred technical solution of the present invention, the dust collection mechanism includes a dust collection box fixed to the top of the mounting base and a plurality of suction heads arranged in a surrounding manner and connected to the inner wall of the protective cover;

[0022] The front surface of the dust collecting box is connected to a vacuum cleaner, and a dust suction hose is connected between the left side of the suction head and the protective cover.

[0023] As an optimal technical solution of the present invention, the top of the protective cover is provided with a through hole for the cutting disc to pass through, and the left and right sides of the protective cover are provided with limiting holes connected to the through hole, and the left and right sides of the protective cover are fixed with hollow cylinders connected to the limiting holes, and a reset spring is fixed inside the hollow cylinder, and a dustproof plate is fixed between the other ends of the reset spring, which passes through the limiting hole and is located in the through hole and fits tightly with the protective cover, and a connecting groove is provided on the top of the other end of the dustproof plate, and the other end of the dustproof plate is rotatably connected to a rotating rod located in the connecting groove, and a rotating head rotatably connected to the rotating rod is fixed at the center of the front surface of the output shaft of the machine body.

[0024] As an optimal technical solution of the present invention, guide rods are installed and fixed on the front and rear sides of the bottom of the protective cover, the bottom of the guide rods is rounded, and elastic rubber strips are installed and fixed between the left and right sides of the guide rods, and the lower surface of the elastic rubber strips is aligned with the lower surface of the guide rods.

[0025] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0026] The road expansion joint cutting machine is moved by a hand-pushed mobile cart. At the same time, the machine body drives the cutting disc to rotate and cooperates with the lifting component to drive the cutting disc downward for cutting. At the same time, the protective component adaptively fits the ground to prevent cutting dust from flying up and debris from splashing. At the same time, the dust collection mechanism collects and stores the dust generated by cutting to prevent the operator from inhaling it and affecting his health. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the utility model;

[0028] Figure 2 This is a cross-sectional view of the utility model;

[0029] Figure 3 It is a partial three-dimensional diagram of the utility model;

[0030] Figure 4 For this utility model Figure 3 Upward stereogram of .

[0031] In the figure: 1. Mobile cart; 2. Machine body; 3. Cutting disc; 4. Loading seat; 5. Limiting slide; 6. Mounting frame; 7. Mounting seat; 8. Hydraulic push rod; 9. Mounting cylinder; 10. Telescopic spring; 11. Moving rod; 12. Protective cover; 13. Guide rod; 14. Elastic rubber strip; 15. Suction head; 16. Dust collection box; 17. Vacuum cleaner; 18. Perforation; 19. Limiting hole; 20. Dustproof plate; 21. Rotating head; 22. Connecting groove; 23. Rotating rod; 24. Hollow cylinder; 25. Return spring; 26. Vacuum hose. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1 to 4 A road expansion joint cutting machine in this embodiment includes a mobile cart 1, a machine body 2, a cutting disc 3 and a loading seat 4.

[0034] The four corners of the bottom of the mobile cart 1 are provided with rubber rollers to facilitate rolling on the ground.

[0035] A hand-held handle is fixedly mounted on the left side of the mobile cart 1 for easy hand-pushing, and a controller for system control and power supply is mounted on the surface.

[0036] The machine body 2 is a gasoline engine driven device and is an existing device that drives the cutting disc 3 to rotate and cut.

[0037] The top of the loading seat 4 is fixed with the body 2 , and the output shaft of the body 2 is installed with a cutting disc 3 .

[0038] The mobile cart 1 in this embodiment is provided with a lifting assembly for pushing the cutting disc 3 downward and cooperating with the cutting disc 3 to rotate to cut the road surface.

[0039] It should be noted that the lifting assembly includes a limiting slide groove 5 opened on the left and right side walls of the inner cavity of the mobile cart 1 and slidingly connected to the loading seat 4, a mounting frame 6 installed and fixed on the top of the loading seat 4, and a mounting seat 7 installed and fixed on the top of the mobile cart 1.

[0040] Among them, a hydraulic push rod 8 is fixedly installed on the top of the mounting seat 7, and the push rod part of the hydraulic push rod 8 is fixedly installed on the mounting frame 6.

[0041] In this embodiment, the loading seat 4 is provided with a protective component that adapts to the road surface and is located outside the cutting disc 3 to prevent dust from rising.

[0042] It should be noted that the protective component includes a mounting tube 9 threadedly connected to the left and right sides of the top of the loading seat 4, a telescopic spring 10 is fixed inside the mounting tube 9, a movable rod 11 that passes through and extends to the bottom of the loading seat 4 is fixed at the bottom of the telescopic spring 10, and a protective cover 12 located outside the cutting disc 3 is fixed between the bottoms of the movable rod 11.

[0043] A threaded head is fixed on the top of the loading seat 4 and is threadedly connected to the mounting tube 9, so as to facilitate the disassembly and replacement of the internal components of the mounting tube 9.

[0044] When the telescopic spring 10 is in a fully extended state, the lower surface of the protective cover 12 is aligned with the lower surface of the cutting disc 3 .

[0045] Guide rods 13 are fixed to the front and rear sides of the bottom of the protective cover 12. The bottom of the guide rod 13 is rounded. Elastic rubber strips 14 are fixed between the left and right sides of the guide rod 13. The lower surface of the elastic rubber strip 14 is aligned with the lower surface of the guide rod 13.

[0046] The guide rod 13 is blade-shaped. The provision of the guide rod 13 helps reduce resistance when the protective cover 12 moves in contact with the ground, and the elastic rubber strip 14 improves the overall sealing performance.

[0047] The protective component in this embodiment is provided with a dust collecting mechanism for collecting dust generated by cutting.

[0048] It should be noted that the dust collecting mechanism includes a dust collecting box 16 fixed to the top of the mounting base 7 and a plurality of suction heads 15 connected to the inner wall of the protective cover 12 and arranged in a surrounding manner.

[0049] The front surface of the dust collecting box 16 is connected to a dust collector 17 , and a dust suction hose 26 is connected between the left side of the suction head 15 and the protective cover 12 .

[0050] A dustproof net is installed at the suction port of the vacuum cleaner 17 , and the suction port of the vacuum cleaner 17 is connected to the dust collecting box 16 . The dustproof net prevents dust from being sucked into the vacuum cleaner 17 .

[0051] A through hole 18 is provided on the top of the protective cover 12 for the cutting disc 3 to pass through, and a limiting hole 19 connected to the through hole 18 is provided on the left and right sides of the protective cover 12. A hollow cylinder 24 connected to the limiting hole 19 is installed and fixed on the left and right sides of the protective cover 12, and a return spring 25 is installed and fixed inside the hollow cylinder 24. A dustproof plate 20 that passes through the limiting hole 19 and is located in the through hole 18 and fits tightly with the protective cover 12 is installed and fixed between the other ends of the return spring 25. The other end of the dustproof plate 20 is rotatably connected to a rotating rod 23, and a rotating head 21 rotatably connected to the rotating rod 23 is installed and fixed at the center of the front surface of the output shaft of the machine body 2.

[0052] The working principle of the above embodiment is:

[0053] The cutting disc 3 is moved along the cutting line by pushing the mobile trolley 1 by hand, and the cutting disc 3 is rotated by the machine body 2, and the loading seat 4 is pushed downward in the limiting slide 5 by the hydraulic push rod 8, so that the cutting disc 3 is synchronously driven to rotate and move downward to cut the road surface;

[0054] As the loading seat 4 and the cutting disc 3 move downward synchronously, the cutting disc 3 cuts deeper. Under the elastic expansion and contraction action of the telescopic spring 10, the protective cover 12, the guide rod 13 and the elastic rubber strip 14 are in contact with the ground. As the cutting disc 3 cuts deeper, the telescopic spring 10 contracts synchronously to ensure that the protective cover 12, the guide rod 13 and the elastic rubber strip 14 are not separated from the ground, thereby ensuring that the closed frame structure composed of the protective cover 12, the guide rod 13, the elastic rubber strip 14 and the dustproof plate 20 is located outside the cutting disc 3, thereby preventing dust generated by cutting from rising and debris from splashing.

[0055] The cam 23 is engaged with the blade 20 and the cam 24, and the cam 25 is engaged with the blade 20, thereby preventing the blade 20 from being damaged.

[0056] In addition, while achieving the effect of preventing dust from rising, by starting the set vacuum cleaner 17 to suck dust, the vacuum cleaner 17, the dust collection box 16, the dust suction hose 26, the protective cover 12 and the suction head 15 are interconnected, so that the dust generated by cutting is sucked into the dust collection box 16 through the suction head 15 for storage, thereby avoiding environmental pollution.

[0057] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

Claims

1. A road expansion joint cutting machine, comprising a mobile cart (1), a machine body (2), a cutting disc (3) and a loading seat (4); A fixed body (2) is mounted on the top of the loading seat (4), and a cutting disc (3) is mounted on the output shaft of the body (2); Its characteristics are: The mobile cart (1) is provided with a lifting assembly for pushing the cutting disc (3) downward and cooperating with the cutting disc (3) to rotate to cut the road surface; The loading seat (4) is provided with a protective component that is adaptively adapted to the road surface and is located outside the cutting disc (3) to prevent dust from rising; The protection component is provided with a dust collecting mechanism for collecting dust generated by cutting.

2. A road expansion joint cutting machine according to claim 1, characterized in that: The lifting assembly includes a limiting slide groove (5) provided on the left and right side walls of the inner cavity of the mobile cart (1) and slidably connected to the loading seat (4), a mounting frame (6) fixedly mounted on the top of the loading seat (4), and a mounting seat (7) fixedly mounted on the top of the mobile cart (1); A hydraulic push rod (8) is fixedly mounted on the top of the mounting seat (7), and the push rod portion of the hydraulic push rod (8) is fixedly mounted on the mounting frame (6).

3. The road expansion joint cutting machine according to claim 2, characterized in that: The protective assembly includes a mounting tube (9) threadedly connected to the left and right sides of the top of the loading seat (4), a telescopic spring (10) is fixedly installed inside the mounting tube (9), a movable rod (11) that movably penetrates and extends to the bottom of the loading seat (4) is fixedly installed at the bottom of the telescopic spring (10), and a protective cover (12) located outside the cutting disc (3) is fixedly installed between the bottoms of the movable rods (11).

4. The road expansion joint cutting machine according to claim 3, characterized in that: When the telescopic spring (10) is in a fully extended state, the lower surface of the protective cover (12) is aligned with the lower surface of the cutting disc (3).

5. The road expansion joint cutting machine according to claim 4, characterized in that: The dust collection mechanism comprises a dust collection box (16) fixedly mounted on the top of the mounting seat (7) and a plurality of suction heads (15) arranged in a surrounding manner and connected to the inner wall of the protective cover (12); The front surface of the dust collecting box (16) is connected to a dust collector (17), and a dust suction hose (26) is connected between the left side of the suction head (15) and the protective cover (12).

6. The road expansion joint cutting machine according to claim 5, characterized in that: The top of the protective cover (12) is provided with a through hole (18) for the cutting disc (3) to pass through, and the left and right sides of the protective cover (12) are provided with limiting holes (19) connected to the through hole (18), and the left and right sides of the protective cover (12) are fixed with hollow cylinders (24) connected to the limiting holes (19), and a return spring (25) is fixed inside the hollow cylinder (24), and a dustproof plate (20) passing through the limiting hole (19) and located in the through hole (18) and tightly fitting with the protective cover (12) is fixed between the other ends of the return spring (25), and the other end of the dustproof plate (20) is rotatably connected to a rotating rod (23), and a rotating head (21) rotatably connected to the rotating rod (23) is fixed at the center of the front surface of the output shaft of the machine body (2).

7. The road expansion joint cutting machine according to claim 3, characterized in that: Guide rods (13) are fixedly mounted on both the front and rear sides of the bottom of the protective cover (12), the bottom of the guide rods (13) is rounded, and elastic rubber strips (14) are fixedly mounted between the left and right sides of the guide rods (13), the lower surface of the elastic rubber strips (14) being aligned with the lower surface of the guide rods (13).

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