Self-propelled road cutting machine with adjustable saw blade angle

Abstract

The present invention discloses a self-propelled road cutting machine with adjustable saw blade angle, including a cutting machine and an adjusting wheel group arranged on the cutting machine, the cutting machine including a carrier, a driving mechanism, a cutting mechanism, a side plate and an automatic wheel, the adjustable wheel assembly further including an electric push rod, a docking shaft, a second positioning cylinder, a second rotating rod and a second walking wheel, the electric push rod is fixedly arranged on the top of the carrier, the docking shaft is fixedly arranged on the output end of the electric push rod, and one end of the docking shaft penetrates the bottom of the carrier. The present invention arranges a fixed wheel assembly and an adjustable wheel assembly, and the adjustment of the adjustable wheel assembly causes the center of gravity of the entire device to shift to the left or right, the entire device tilts, and the cutting mechanism also tilts when entering the road surface. When encountering a curve on the road surface, the entire device is adjusted to tilt in different directions and to different degrees, and the device generates a tilt arc when it walks by itself, so that human power is no longer required when cutting the curve, saving manpower.

Description

Technical Field

[0001] The invention relates to the field of road cutting machines, and in particular to a self-propelled road cutting machine with an adjustable saw blade angle. Background Art

[0002] Pavement cutting machine is a tool for road maintenance and construction. Its main function is to cut cracks on the road surface, cutting a gap of varying depths on the concrete pavement.

[0003] The driving source of a road cutting machine is generally a diesel engine. A self-propelled road cutting machine is a road cutting machine whose wheels are driven by a diesel engine, and a reduction drive is generally performed during the driving process.

[0004] The self-propelled function of the self-propelled road cutting machine can greatly save manpower. When cutting concrete roads, the cutting equipment is subject to great resistance, and it will be extremely laborious to rely solely on manpower to push the cutting equipment;

[0005] The self-propelled function of the self-propelled road cutting machine is generally only applicable to cutting seams on straight sections. On curved sections, the self-propelled function of the cutting equipment is not applicable. At this time, human control of the cutting equipment is still required to perform arc cutting on the curved road;

[0006] When the saw blade of the cutting equipment rotates at high speed in the concrete for cutting, it generates a pulling force on the cutting equipment toward the front. This pulling force hinders the turning of the cutting equipment to a certain extent. Moreover, the saw blade of the cutting equipment generally cuts vertically into the concrete pavement. During the turning process when cutting the arc, the saw blade itself will produce a certain deformation, which undoubtedly further increases the resistance to the equipment.

[0007] When a self-propelled road cutting machine is used on a road with many curves, the self-propelled function of the road cutting machine is difficult to exert, so a self-propelled road cutting machine with an adjustable saw blade angle is proposed. Summary of the invention

[0008] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a self-propelled road cutting machine with an adjustable saw blade angle, which can perform self-propelled cutting in a curved area, thereby greatly saving manpower.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0010] The present invention discloses a self-propelled road cutting machine with adjustable saw blade angle, comprising a cutting machine and an adjusting wheel set arranged on the cutting machine, wherein the cutting machine comprises a carrier, a driving mechanism, a cutting mechanism, a side plate and an automatic wheel;

[0011] The adjusting wheel assembly comprises a fixed wheel assembly and an adjustable wheel assembly arranged on the carrier. The spacing between the adjustable wheel assembly and the carrier is adjusted, while the spacing between the fixed wheel assembly and the carrier remains unchanged, so that the whole device appears to be tilted to the left or right. When the driving mechanism drives the automatic wheel to rotate, the walking track of the device will also appear to be tilted to the left or right. Moreover, the tilting of the whole device will inevitably cause the cutting mechanism to tilt when cutting. When the saw blade tilts and cuts into the road surface to make an arc movement, the resistance it encounters is undoubtedly smaller.

[0012] The adjustable wheel assembly further includes an electric push rod, a docking shaft, a second positioning cylinder, a second rotating rod and a second walking wheel, wherein:

[0013] An electric push rod, which is fixedly arranged on the top of the carrier;

[0014] The docking shaft is fixedly arranged at the output end of the electric push rod, and one end of the docking shaft penetrates the bottom of the carrier;

[0015] A second positioning cylinder, which is fixedly arranged at the bottom of the docking shaft;

[0016] A second rotating rod is rotatably disposed inside the second positioning cylinder, and both ends of the second rotating rod extend to the outside of the second positioning cylinder;

[0017] The second traveling wheel is fixedly arranged on the front side of the second rotating rod.

[0018] The electric push rod drives the second traveling wheel to move up and down, and adjusts the distance between the second traveling wheel and the carrier.

[0019] As a preferred technical solution of the present invention, the driving mechanism is fixedly arranged on the top of the carrier, and the cutting mechanism is arranged on the driving mechanism through a lifting arm. The driving mechanism is used to drive the cutting mechanism to rotate at high speed to cut the road surface.

[0020] As a preferred technical solution of the present invention, the side plate is fixedly arranged on the right side of the carrier, the automatic wheel is arranged at the bottom center of the carrier, and the output end of the driving mechanism is connected to the automatic wheel through a reduction gear set.

[0021] As a preferred technical solution of the present invention, a positioning frame is provided on the electric push rod, and the positioning frame includes a positioning ring fixedly arranged outside the electric push rod, and a support plate with one end fixedly connected to the carrier is fixedly arranged on the front and back sides of the positioning ring.

[0022] As a preferred technical solution of the present invention, the fixed wheel assembly further includes a suspension plate, a first positioning cylinder, a first rotating rod and a first traveling wheel, wherein:

[0023] A hanging plate, which is fixedly arranged at the bottom of the carrier;

[0024] A first positioning cylinder is fixedly arranged at the bottom of the hanging plate;

[0025] A first rotating rod is rotatably disposed inside the first positioning cylinder, and both front and rear ends of the first rotating rod extend to the outside of the first positioning cylinder;

[0026] The first walking wheel is fixedly arranged on the back side of the first rotating rod.

[0027] The distance between the first traveling wheel and the carrier generally does not change, but a change in the distance between the second traveling wheel and the carrier will cause the center of the entire device to shift.

[0028] As a preferred technical solution of the present invention, the second running wheels and the first running wheels are symmetrically distributed on the front and rear sides of the carrier.

[0029] As a preferred technical solution of the present invention, a connecting assembly is arranged between the fixed wheel assembly and the adjustable wheel assembly, and the connecting assembly includes a positioning plate fixed on the back side of the second rotating rod and a positioning tube fixed on the front side of the first rotating rod, a supporting plate is fixedly arranged on the bottom of the positioning plate, and a movable rod penetrating through and extending to the top of the positioning tube is fixedly arranged on the top of the supporting plate.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention provides a fixed wheel assembly and an adjustable wheel assembly. The adjustable wheel assembly can be adjusted to shift the center of gravity of the entire device to the left or right, so that the entire device is tilted. The cutting mechanism also cuts into the road surface at an angle. When encountering a curve in the road surface, the entire device is adjusted to tilt in different directions and degrees. The device will then generate a tilt arc when it moves by itself, which eliminates the need for manual push when cutting the curve, thus saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0033] Figure 1 is a front view of the present invention;

[0034] Figure 2 is a right side sectional view of the present invention;

[0035] Figure 3 This is a diagram showing an embodiment of the device state of the present invention when encountering a right turn;

[0036] Figure 4 This is a diagram showing an embodiment of the device state of the present invention when encountering a left turn;

[0037] Figure 5It is a schematic diagram of the cutting mechanism of the present invention cutting into the road surface when encountering a right turn;

[0038] In the figure: 1. carrier; 2. driving mechanism; 3. cutting mechanism; 4. side plate; 5. automatic wheel; 6. hanging plate; 7. first positioning cylinder; 8. first rotating rod; 9. first running wheel; 10. electric push rod; 11. docking shaft; 12. second positioning cylinder; 13. second rotating rod; 14. second running wheel; 15. positioning frame; 151. positioning ring; 152. support plate; 16. connecting assembly; 161. positioning plate; 162. positioning tube; 163. support plate; 164. movable rod; 17. road surface. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0040] In the drawings, the same reference numerals all refer to the same components. Example 1

[0041] like Figure 1-4 As shown, the present invention provides a self-propelled road cutting machine with adjustable saw blade angle, including a cutting machine and an adjusting wheel set arranged on the cutting machine, the cutting machine includes a carrier 1, a driving mechanism 2, a cutting mechanism 3, a side plate 4 and an automatic wheel 5, and the driving mechanism 2 uses a diesel engine.

[0042] The driving mechanism 2 is fixedly arranged on the top of the carrier 1, and the cutting mechanism 3 is arranged on the driving mechanism 2 through a lifting arm. The driving mechanism 2 is used to drive the cutting mechanism 3 to rotate at high speed to cut the road surface 17. The side plate 4 is fixedly arranged on the right side of the carrier 1, and the automatic wheel 5 is arranged at the bottom center of the carrier 1. The output end of the driving mechanism 2 is connected to the automatic wheel 5 through a reduction gear set.

[0043] See also Figure 5 The adjusting wheel assembly includes a fixed wheel assembly and an adjustable wheel assembly arranged on the carrier 1. The distance between the adjustable wheel assembly and the carrier 1 is adjusted, while the distance between the fixed wheel assembly and the carrier 1 remains unchanged, so that the whole device appears to be tilted to the left or right. When the driving mechanism 2 drives the automatic wheel 5 to rotate, the walking track of the device will also appear to be tilted to the left or right, and the overall tilt of the device will inevitably cause the cutting mechanism 3 to tilt when it cuts, and the saw blade will undoubtedly encounter less resistance when it tilts and cuts into the road surface 17 to make an arc motion.

[0044] The cutting of expansion joints is a cross section of the road surface, so there is basically no problem of turning on a curve. When this equipment is cutting on a curve along a curve, it is mostly to cut two gaps, and then crush the road surface 17 between the two gaps, so whether the cut gap is tilted does not affect subsequent construction.

[0045] The fixed wheel assembly further includes a hanging plate 6, a first positioning cylinder 7, a first rotating rod 8 and a first walking wheel 9. The hanging plate 6 is fixedly arranged at the bottom of the carrier 1, the first positioning cylinder 7 is fixedly arranged at the bottom of the hanging plate 6, the first rotating rod 8 is rotatably arranged inside the first positioning cylinder 7, and the front and rear ends of the first rotating rod 8 both extend to the outside of the first positioning cylinder 7, and the first walking wheel 9 is fixedly arranged on the back side of the first rotating rod 8.

[0046] The adjustable wheel assembly further includes an electric push rod 10, a docking shaft 11, a second positioning cylinder 12, a second rotating rod 13 and a second walking wheel 14. The electric push rod 10 is fixedly arranged on the top of the carrier 1, the docking shaft 11 is fixedly arranged at the output end of the electric push rod 10, and one end of the docking shaft 11 passes through the bottom of the carrier 1, the second positioning cylinder 12 is fixedly arranged at the bottom of the docking shaft 11, the second rotating rod 13 is rotatably arranged inside the second positioning cylinder 12, and both ends of the second rotating rod 13 extend to the outside of the second positioning cylinder 12, and the second walking wheel 14 is fixedly arranged on the front side of the second rotating rod 13.

[0047] In addition, the distance between the first running wheel 9 and the carrier 1 generally does not change, but the change in the distance between the second running wheel 14 and the carrier 1 will cause the center of the entire device to shift. The second running wheel 14 and the first running wheel 9 are symmetrically distributed on the front and rear sides of the carrier 1.

[0048] The height difference between the second walking wheel 14 and the first walking wheel 9 will cause the center of gravity of the equipment to shift, causing the equipment to go in circles during movement. However, the height difference between the second walking wheel 14 and the first walking wheel 9 is different, and the curvature of the equipment during walking is also inconsistent. The weight distribution and overall structure of the equipment itself will affect this curvature. The models of cutting machines in the same batch produced on the assembly line are basically the same. If the function of the present invention is added, the exhaustive method can be used directly to test and record, and then mark the curvature of the walking arc obtained with different height differences.

[0049] In addition, the electric push rod 10 should be selected with a stroke control function.

[0050] It should be noted that the electric push rod 10 drives the second running wheel 14 to move up and down, so as to adjust the distance between the second running wheel 14 and the carrier 1 .

[0051] In this embodiment, a positioning frame 15 is provided on the electric push rod 10, and the positioning frame 15 includes a positioning ring 151 fixedly arranged outside the electric push rod 10, and a support plate 152 with one end fixedly connected to the carrier 1 is fixedly arranged on the front and back sides of the positioning ring 151.

[0052] It should be noted that the cutting machine is generally equipped with a water tank and a water pump for spraying, cooling and dust removal on the cutting mechanism 3, but the cutting machine in the present application is not equipped with a water tank and a water pump for dust removal. The change in the amount of water in the water tank will have a certain impact on the equipment during the turning process, causing the arc of the equipment to deviate from the expected direction.

[0053] If the cutting mechanism 3 needs to be sprayed for cooling, a self-propelled trailer with a water tank and water pump should be set up to move synchronously with the cutting machine, and an extended pipe should be used to spray the cutting mechanism 3. Because the self-propelled trailer belongs to conventional technology, even the one with curve recognition function belongs to well-known technology and will not be elaborated here.

[0054] In this embodiment, a connecting assembly 16 is arranged between the fixed wheel assembly and the adjustable wheel assembly. The connecting assembly 16 includes a positioning plate 161 welded on the back side of the second rotating rod 13 and a positioning tube 162 welded on the front side of the first rotating rod 8. A support plate 163 is fixed to the bottom of the positioning plate 161, and a movable rod 164 that penetrates and extends to the top of the positioning tube 162 is fixed to the top of the support plate 163.

[0055] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-propelled road cutting machine with adjustable saw blade angle, comprising a cutting machine and an adjusting wheel set arranged on the cutting machine, characterized in that: The cutting machine comprises a carrier (1), a driving mechanism (2), a cutting mechanism (3), a side plate (4) and an automatic wheel (5), wherein the driving mechanism (2) is fixedly arranged on the top of the carrier (1), the cutting mechanism (3) is arranged on the driving mechanism (2) via a lifting arm, the driving mechanism (2) is used to drive the cutting mechanism (3) to rotate at a high speed to cut the road surface (17), the side plate (4) is fixedly arranged on the right side of the carrier (1), the automatic wheel (5) is arranged at the bottom center of the carrier (1), and the output end of the driving mechanism (2) is connected to the automatic wheel (5) through a reduction gear set; The adjusting wheel assembly comprises a fixed wheel assembly and an adjustable wheel assembly arranged on the carrier (1); The fixed wheel assembly further comprises a suspension plate (6), a first positioning cylinder (7), a first rotating rod (8) and a first running wheel (9), wherein: A hanging plate (6) fixedly arranged at the bottom of the carrier (1); A first positioning cylinder (7) is fixedly arranged at the bottom of the suspension plate (6); A first rotating rod (8) is rotatably arranged inside the first positioning cylinder (7), and both front and rear ends of the first rotating rod (8) extend to the outside of the first positioning cylinder (7); A first running wheel (9) is fixedly arranged on the back side of the first rotating rod (8); The adjustable wheel assembly further comprises an electric push rod (10), a docking shaft (11), a second positioning cylinder (12), a second rotating rod (13) and a second walking wheel (14), wherein: An electric push rod (10) fixedly arranged on the top of the carrier (1); A docking shaft (11) is fixedly arranged at the output end of the electric push rod (10), and one end of the docking shaft (11) penetrates below the carrier (1); A second positioning cylinder (12) fixedly disposed at the bottom of the docking shaft (11); A second rotating rod (13) is rotatably disposed inside the second positioning cylinder (12), and both ends of the second rotating rod (13) extend to the outside of the second positioning cylinder (12); The second running wheel (14) is fixedly arranged on the front side of the second rotating rod (13).

2. A self-propelled road cutting machine with adjustable saw blade angle according to claim 1, characterized in that: A positioning frame (15) is provided on the electric push rod (10), and the positioning frame (15) comprises a positioning ring (151) fixedly arranged outside the electric push rod (10), and a support plate (152) having one end fixedly connected to the carrier (1) is fixedly arranged on the front and back sides of the positioning ring (151).

3. The self-propelled road cutting machine with adjustable saw blade angle according to claim 1, characterized in that: The second running wheels (14) and the first running wheels (9) are symmetrically distributed on the front and rear sides of the carrier (1).

4. The self-propelled road cutting machine with adjustable saw blade angle according to claim 1, characterized in that: A connection assembly (16) is provided between the fixed wheel assembly and the adjustable wheel assembly, the connection assembly (16) comprising a positioning plate (161) fixed to the back of the second rotating rod (13) and a positioning tube (162) fixed to the front of the first rotating rod (8), a supporting plate (163) being fixedly provided at the bottom of the positioning plate (161), and a movable rod (164) penetrating through and extending to the top of the positioning tube (162) being fixedly provided at the top of the supporting plate (163).

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