Bridge pavement cutting device

Abstract

The present invention discloses a bridge pavement slitting device, which belongs to the field of bridge construction technology, and includes a base plate, a frame fixedly arranged on the base plate, a tool protection shell connected to the frame, and a cutter assembly connected to the tool protection shell; the cutter assembly includes a transmission cutter shaft rotatably matched with the tool protection shell, a rotation drive device driving the transmission cutter shaft to rotate, two outer cutter discs and an inner cutter disc that are transmission matched with the transmission cutter shaft, the rotation drive device is fixedly connected to the tool protection shell, and the two outer cutter discs and the inner cutter disc are both arranged in the tool protection shell; the blades on the outer cutter disc extend toward the side where the inner cutter disc is located, and the two groups of outer cutter discs are arranged at intervals so that the outer cutter disc and the blades thereon are combined to form an annular accommodating cavity, the inner cutter disc is located in the accommodating cavity and the outer diameter of the inner cutter disc is smaller than the outer diameter of the outer cutter disc, and the outer side of the inner cutter disc is evenly distributed with soil discharge assemblies. The device of the present invention can avoid the problem of knife jamming caused by slitting the cushion layer of the bridge pavement.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and in particular relates to a bridge pavement cutting device. Background Art

[0002] When roads and bridges are being built, the ground needs to be cut to prevent the bridge from being damaged by thermal expansion in the summer. Therefore, a straight line needs to be cut on the road surface after the bridge pavement is built. The bridge and expansion joints after cutting can effectively protect the main structure. With the aging of bridges, some existing bridge pavements occasionally collapse during use. Therefore, it is necessary not only to cut the surface layer, but also to penetrate into the cushion layer of the pavement to observe the internal collapse of the cushion layer. However, the existing cutting device can only cope with hard pavements. When the cutter penetrates into the softer cushion layer, it is easy to get stuck, which seriously affects the cutting efficiency of the pavement. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a bridge pavement cutting device, which can avoid the problem of knife sticking when cutting the cushion layer of the bridge pavement.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a bridge pavement cutting device, comprising a base plate, a frame fixedly arranged on the base plate, a tool protection shell connected to the frame, and a cutting knife assembly connected to the tool protection shell; the cutting knife assembly comprises a transmission cutter shaft rotatably matched with the cutter protection shell, a rotation driving device driving the transmission cutter shaft to rotate, two outer cutter discs and an inner cutter disc that are transmission matched with the transmission cutter shaft, the rotation driving device is fixedly connected to the cutter protection shell, and the two outer cutter discs and the inner cutter disc are both arranged in the cutter protection shell; the two outer cutter discs are symmetrically arranged on both sides of the inner cutter disc, the outer side of the outer cutter disc is evenly arranged with blades in an annular manner, and the blades on the outer cutter disc extend toward the side where the inner cutter disc is located, and the two groups of outer cutter discs are arranged at intervals so that the outer cutter disc and the blades thereon are combined to form an annular accommodating cavity, the inner cutter disc is located in the accommodating cavity and the outer diameter of the inner cutter disc is smaller than the outer diameter of the outer cutter disc, and the outer side of the inner cutter disc is evenly arranged with soil discharge assemblies in an annular manner.

[0006] Furthermore, the soil discharge assembly includes a soil discharge hopper, support plates fixed on both sides of the soil discharge hopper, and a rotating shaft connecting the two support plates. The rotating shaft is rotatably connected to the inner cutter disc, and an elastic support assembly is arranged between the soil discharge hopper and the inner cutter disc.

[0007] Furthermore, an angle is formed between the back side of the soil discharge hopper and the outer circumferential surface of the inner cutter disc, and the elastic support assembly includes a plurality of rubber plates, which are sequentially stacked and arranged in the angle formed between the outer circumferential surfaces of the inner cutter discs, and the two support plates are used to limit the side surfaces of the rubber plates.

[0008] Furthermore, the outer blade disc is provided with a plurality of opening slots, a handle is fixed on the blade, a connecting hole is provided on the handle, and the blade is detachably connected to the outer blade disc via the handle.

[0009] Furthermore, the frame includes a column, a first frame pivotally connected to the column along the Y direction, a second frame pivotally connected to the first frame along the Y direction, and a third frame pivotally connected to the second frame along the Y direction, and the tool protection shell is connected to the third frame of the frame; the frame also includes a fourth frame pivotally connected to the column along the Z direction, and a fifth frame pivotally connected to the fourth frame along the Z direction, and the fifth frame is also pivotally connected to the third frame.

[0010] Furthermore, a sixth frame is pivotally connected to the bottom of the third frame along the Y direction, a guide rod is hinged on the sixth frame, and a guide hole cooperating with the guide rod is provided on the third frame.

[0011] Furthermore, a soil collecting box is arranged on the bottom plate, the tool protection shell is semicircular, and the tool protection shell is located obliquely above the cutter assembly to guide the debris to the soil collecting box.

[0012] Furthermore, the soil collecting box is slidably matched with the base plate, and an arc plate is arranged on the end surface of the tool protective shell, and an inclined plate is fixed on the arc plate, and a sliding rod is hinged at the lower end of the inclined plate, and one end of the sliding rod forms a through groove for the inclined plate to give way, and the other end of the sliding rod is slidably matched with the soil collecting box, and a first limit plate and a second limit plate are fixed on the sliding rod, and the first limit plate and the second limit plate are respectively located on the outer side and the inner side of the soil collecting box, and a tension spring is sleeved on the sliding rod, and the two ends of the tension spring are respectively fixedly connected to the first limit plate and the soil collecting box.

[0013] The beneficial effects of the present invention are:

[0014] The present invention provides a bridge pavement cutting device. By arranging two outer cutter discs and one inner cutter disc, after the outer cutter disc completes cutting of the surface layer and the base layer of the pavement and enters the cushion layer, the cutting action of the blade can provide a accommodating space for the inner cutter disc, so that the inner cutter disc can discharge the gravel and soil in the space, thereby avoiding the problem of the cutter being stuck due to the squeezing of the soft cushion layer on the outer cutter disc.

[0015] In the device of the present invention, blades are evenly distributed in a ring shape on the outer side of the outer cutter disc, and the blades on the outer cutter disc extend toward the side where the inner cutter disc is located, which is convenient for forming an accommodating space. The cutting has a certain thickness, and the opening of the cutting seam has a certain width, making subsequent detection smoother.

[0016] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0018] Figure 1 The structure of the device of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure of the device of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 is a schematic diagram of the structure of the cutter assembly;

[0021] Figure 4 is a side view of the cutter assembly;

[0022] Figure 5 It is a schematic diagram of the structure of the inner cutter disc;

[0023] Figure 6 for Figure 5 Enlarged view at A.

[0024] The markings in the accompanying drawings are as follows: base plate 1, frame 2, tool protection shell 3, cutter assembly 4, transmission shaft 5, rotation drive device 6, outer cutter disc 7, inner cutter disc 8, blade 9, soil discharge hopper 10, support plate 11, rotating shaft 12, rubber plate 13, opening groove 14, handle 15, connecting hole 16, column 17, first frame 18, second frame 19, third frame 20, fourth frame 21, fifth frame 22, sixth frame 23, guide rod 24, guide hole 25, soil collecting box 26, arc plate 27, inclined plate 28, slide rod 29, through groove 30, first limit plate 31, second limit plate 32, tension spring 33. DETAILED DESCRIPTION

[0025] like Figures 1 to 6As shown, a bridge pavement cutting device of the present invention comprises a bottom plate 1, a frame 2 fixedly arranged on the bottom plate 1, a tool protection shell 3 connected to the frame 2, and a cutter assembly 4 connected to the tool protection shell 3; a universal wheel is arranged at the bottom of the bottom plate 1, and the bottom of the bottom plate 1 can be moved to a place where the bridge pavement needs to be cut as needed. The frame 2 is arranged on the upper side of the bottom plate 1, and the tool protection shell 3 is used to protect the cutter assembly 4.

[0026] Specifically, the cutter assembly 4 includes a transmission blade shaft 5 rotatably matched with the tool protection shell 3, a rotation drive device 6 for driving the transmission blade shaft 5 to rotate, two outer blade discs 7 and an inner blade disc 8 that are transmission-matched with the transmission blade shaft 5, the transmission blade shaft 5 is along the Y direction and is perpendicular to the plane where the blade discs are located, the rotation drive device 6 is fixedly connected to the tool protection shell 3, and is used to drive the transmission blade shaft 5 and the associated blade discs to rotate, the two outer blade discs 7 and the inner blade disc 8 are all arranged in the tool protection shell 3, and the tool protection shell 3 can be used to guide the debris to facilitate collection and avoid injury to the staff.

[0027] The two outer cutter discs 7 have exactly the same structure and are symmetrically arranged on both sides of the inner cutter disc 8. The outer sides of the outer cutter discs 7 are evenly distributed with blades 9 in an annular shape. The blades 9 on the outer cutter discs 7 extend toward the side where the inner cutter disc 8 is located. The two groups of outer cutter discs 7 are spaced apart so that the outer cutter discs 7 and the blades 9 thereon are combined to form an annular accommodating cavity. The inner cutter disc 8 is located in the accommodating cavity and the outer diameter of the inner cutter disc 8 is smaller than the outer diameter of the outer cutter disc 7. The outer sides of the inner cutter disc 8 are evenly distributed with soil discharge components in an annular shape for discharging soil debris in the accommodating cavity.

[0028] In this embodiment, the soil discharge assembly includes a soil discharge hopper 10, support plates 11 fixed on both sides of the soil discharge hopper 10, and a rotating shaft 12 connecting the two support plates 11. The opening direction of the soil discharge hopper 10 is consistent with the rotation direction of the cutter disc, so that it can easily collect soil. The rotating shaft 12 is rotatably connected to the inner cutter disc 8, so that the inner end of the soil discharge hopper 10 can be hinged relative to the inner cutter disc 8. An elastic support assembly is arranged between the soil discharge hopper 10 and the inner cutter disc 8, so that the soil discharge hopper 10 has flexible rotation recovery ability, thereby avoiding damage to the soil discharge hopper 10 caused by direct rotation contact with gravel.

[0029] In this embodiment, an angle is formed between the back side of the soil discharge hopper 10 and the outer circumferential surface of the inner cutter disc 8. The elastic support assembly includes a plurality of rubber plates 13. The rubber plates 13 are stacked in sequence within the angle formed between the outer circumferential surfaces of the inner cutter disc 8, and can play an elastic supporting role. The two support plates 11 are used to limit the side surfaces of the rubber plates 13, so as to facilitate the stacking and use of the rubber plates 13.

[0030] In this embodiment, a plurality of opening grooves 14 are provided on the outer cutter disc 7, a handle 15 is fixed on the blade 9, a connecting hole 16 is provided on the handle 15, and the blade 9 is detachably connected to the outer cutter disc 7 via the handle 15. By providing the opening grooves 14, it is convenient for soil to enter the accommodating cavity from the side, thereby reducing the side pressure of the outer cutter disc 7.

[0031] In this embodiment, the frame 2 includes a column 17, a first frame 18 pivoted to the column 17 along the Y direction, a second frame 19 pivoted to the first frame 18 along the Y direction, and a third frame 20 pivoted to the second frame 19 along the Y direction. The tool protection shell 3 is connected to the third frame 20 of the frame 2. The frame 2 also includes a fourth frame 21 pivoted to the column 17 along the Z direction, and a fifth frame 22 pivoted to the fourth frame 21 along the Z direction. The fifth frame 22 is also pivoted to the third frame 20. A sixth frame 23 is also pivoted to the bottom of the third frame 20 along the Y direction. A guide rod 24 is hinged on the sixth frame 23. A guide hole 25 that cooperates with the guide rod 24 is opened on the third frame 20. Through this arrangement, it can be ensured that the cutter disc is along the straight line where the X-axis is located when cutting, and the consistency is better.

[0032] In this embodiment, a soil collecting box 26 is provided on the base plate 1, and the tool protection shell 3 is semicircular. The tool protection shell 3 is located obliquely above the cutter assembly 4 and is used to guide the debris to the soil collecting box 26, which can be used to collect soil.

[0033] The bottom plate 1 is provided with a curved plate 27, on which an inclined plate 28 is fixed, and a slide bar 29 is hinged at the lower end of the inclined plate 28. One end of the slide bar 29 forms a through groove 30 for the inclined plate 28 to give way, and the other end of the slide bar 29 is slidably matched with the soil collecting box 26. A first limiting plate 31 and a second limiting plate 32 are fixed on the slide bar 29. The first limiting plate 31 and the second limiting plate 32 are respectively located on the outer side and the inner side of the soil collecting box 26. A tension spring 33 is sleeved on the slide bar 29, and the two ends of the tension spring 33 are respectively fixedly connected to the first limiting plate 31 and the soil collecting box 26. Through this arrangement, under the limiting action of the first limiting plate 31 and the second limiting plate 32, the soil collecting box 26 can be moved together with the tool protection shell 3, and can collect soil with the ground. When the tool cuts downward, the short-distance displacement of the soil collecting box 26 will not be affected by the action of the tension spring 33.

[0034] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A bridge pavement cutting device, characterized in that: It comprises a base plate, a frame fixedly arranged on the base plate, a tool protection shell connected to the frame, and a cutting knife assembly connected to the tool protection shell; the cutting knife assembly comprises a transmission knife shaft rotatably matched with the tool protection shell, a rotation driving device driving the transmission knife shaft to rotate, two outer knife discs and an inner knife disc drivingly matched with the transmission knife shaft, the rotation driving device is fixedly connected to the tool protection shell, and the two outer knife discs and the inner knife disc are both arranged in the tool protection shell; the two outer knife discs are symmetrically arranged on both sides of the inner knife disc, and the outer side of the outer knife disc is evenly annularly arranged with blades, and the blades on the outer knife disc extend toward the side where the inner knife disc is located, and the two groups of outer knife discs are arranged at intervals so that the outer knife disc and the blades thereon are combined to form an annular accommodating cavity, and the inner knife disc is located in the accommodating cavity The outer diameter of the inner cutter disc is smaller than the outer diameter of the outer cutter disc, and a soil discharge assembly is evenly distributed in an annular shape on the outer side of the inner cutter disc; the soil discharge assembly includes a soil discharge hopper, support plates fixed on both sides of the soil discharge hopper, and a rotating shaft connecting the two support plates, the rotating shaft is rotatably connected to the inner cutter disc, and an elastic support assembly is arranged between the soil discharge hopper and the inner cutter disc; an angle is formed between the back side of the soil discharge hopper and the outer circumferential surface of the inner cutter disc, and the elastic support assembly includes a plurality of rubber plates, which are sequentially stacked and arranged in the angle formed between the outer circumferential surfaces of the inner cutter discs, and the two support plates are used to limit the side faces of the rubber plates; a plurality of open grooves are provided on the outer cutter disc, a handle is fixed on the blade, a connecting hole is provided on the handle, and the blade is detachably connected to the outer cutter disc through the handle.

2. A bridge pavement cutting device according to claim 1, characterized in that: The frame includes a column, a first frame pivotally connected to the column along the Y direction, a second frame pivotally connected to the first frame along the Y direction, and a third frame pivotally connected to the second frame along the Y direction, and the tool protection shell is connected to the third frame of the frame; the frame also includes a fourth frame pivotally connected to the column along the Z direction, and a fifth frame pivotally connected to the fourth frame along the Z direction, and the fifth frame is also pivotally connected to the third frame.

3. A bridge pavement cutting device according to claim 2, characterized in that: A sixth frame is pivotally connected to the bottom of the third frame along the Y direction, a guide rod is hinged on the sixth frame, and a guide hole matching the guide rod is provided on the third frame.

4. A bridge pavement cutting device according to claim 3, characterized in that: A soil collecting box is arranged on the bottom plate, and the tool protection shell is semicircular. The tool protection shell is located obliquely above the cutter assembly and is used to guide the debris to the soil collecting box.

5. A bridge pavement cutting device according to claim 4, characterized in that: The soil collecting box is slidably matched with the base plate, and an arc plate is arranged on the end surface of the tool protection shell, and an inclined plate is fixed on the arc plate, and a sliding rod is hinged at the lower end of the inclined plate, and one end of the sliding rod forms a through groove for the inclined plate to give way, and the other end of the sliding rod is slidably matched with the soil collecting box, and a first limit plate and a second limit plate are fixed on the sliding rod, and the first limit plate and the second limit plate are respectively located on the outer side and the inner side of the soil collecting box, and a tension spring is sleeved on the sliding rod, and the two ends of the tension spring are respectively fixedly connected to the first limit plate and the soil collecting box.

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