Road marking milling machine

Abstract

The utility model provides a road marking milling machine, which relates to the field of road marking milling equipment and comprises a main frame, a milling mechanism and a material collecting mechanism, the milling mechanism is connected with a lifting mechanism, and the material collecting mechanism comprises a material collecting bin and a material conveying pipeline; the milling mechanism comprises a milling chamber, the milling chamber is connected with the lifting end of the lifting mechanism through a connecting seat, and the milling chamber is elastically and flexibly connected with the connecting seat; a milling drum is rotationally arranged in the milling chamber, a material collecting opening is formed in the milling chamber corresponding to the tangential direction of the milling circumference of the milling drum, the material collecting opening is communicated to a material collecting bin through a material conveying pipeline, and the material collecting bin is connected with a negative pressure induced draft fan; side plates are arranged on the two sides of the milling drum, the side plates are movably connected with the milling chamber in a height-adjustable mode, and a milling depth fine adjustment mechanism used for adjusting the height difference between the bottom edges of the side plates and the bottom edge of the milling drum is further connected between the side plates and the milling chamber; according to the utility model, additional cleaning machinery is avoided, the dustproof effect is good, and the milling drum is always kept parallel to the road surface under multiple dimensions.

Description

TECHNICAL FIELD

[0001] The utility model relates to road marking milling equipment technical field, concretely relates to a road marking milling machine. BACKGROUND

[0002] The maintenance of road marking is one of the important works of the traffic management department, especially in the following two cases, the removal of marking is needed. First, the road marking needs to be removed for the need of highway re-planning, and then the road is repainted; second, the road marking will become unclear after long-term and frequent rolling of vehicles, which requires repainting, but the old marking must be removed before painting.

[0003] There are mechanical devices on the market to remove the marking to replace manual operation, for example, the road marking milling device disclosed in the Chinese invention patent with the announcement number CN117286767A, which mainly includes a milling device, a rotary self-leveling device, a depth adjusting device, a side shifting device and a dust removal device. However, such milling equipment has the following problems: first, there is dust problem in the operation process, and the waste material milled needs to be cleaned by the cleaning machinery behind, which not only increases the number of working machinery, but also increases the labor and working hours, and also causes pollution to the road surface; second, the milling machine generates heat during work, and when milling hot-melt resin marking, the cutter will be stuck, affecting the construction efficiency; third, the rotary self-leveling device can only realize left and right inclination to adapt to the uneven road surface, and cannot meet the leveling requirements in more complex road conditions such as front and back, left and right, and inclination, resulting in poor marking milling quality, and the milling machine may be blocked when encountering a road surface with high front and low back. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a road marking milling machine aiming at the above problems existing in the prior art.

[0005] The technical scheme for solving the above technical problems is as follows: a road marking milling machine, characterized in that it comprises a main frame, a milling mechanism and a material collecting mechanism connected to the main frame, the milling mechanism is connected with a lifting mechanism for controlling its lifting, and the material collecting mechanism comprises a material collecting bin and a material conveying pipeline.

[0006] The milling mechanism comprises a milling chamber, the milling chamber is connected with the lifting end of the lifting mechanism through a first connecting seat, and the milling chamber and the first connecting seat are elastically connected;

[0007] A milling drum is rotatably arranged in the milling chamber, a material collecting port is arranged on the milling chamber in the direction of the tangent line of the milling circumference of the milling drum, the material collecting port is communicated to the material collecting bin through the material conveying pipeline, and the material collecting bin is connected with a negative pressure induced draft fan;

[0008] The milling drum is provided with side plates on both sides, the side plates are movably connected with the milling chamber in a height-adjustable manner, and a milling depth fine adjustment mechanism for adjusting the height difference between the bottom edges of the side plates and the bottom edge of the milling drum is further connected between the side plates and the milling chamber.

[0009] Further, the elastic soft connection between the milling chamber and the first connecting seat is in the form that the milling chamber is connected with the first connecting seat through a rubber soft connection structure.

[0010] Further, the milling chamber is connected with a guide rod on the front side.

[0011] Further, the milling chamber and the first connecting seat are further connected with an anti-sagging structure for preventing the milling chamber from sagging due to the soft connection relationship between the milling chamber and the first connecting seat when the milling mechanism is raised.

[0012] Further, the anti-sagging structure is an inverted hook plate structure, one end of which is fixed with the first connecting seat, and the other end is located beside the milling chamber and abuts against the abutting plate on the milling chamber when the milling chamber has a sagging trend.

[0013] Further, the milling depth fine adjustment mechanism comprises an adjusting bolt and an adjusting arm provided outside the milling chamber, the adjusting bolt is movably connected with the milling chamber, the adjusting arm is rotatably connected with the milling chamber, one end of the adjusting arm is movably connected with the adjusting bolt, the other end of the adjusting arm is connected with a push rod, the adjusting arm can rotate with the movement of the adjusting bolt to make the push rod move up and down, and the side plate is provided with an adjusting hole for inserting the push rod to make the side plate be pushed up and down by the push rod.

[0014] Further, the side plate is movably connected with the milling chamber through a connecting part, the connecting part comprises a limiting column fixed to the milling chamber, the side plate is provided with a connecting hole corresponding to the limiting column, and the limiting column is located in the connecting hole and can slide relative to the side plate in the connecting hole, so that when the side plate is pushed by the push rod, the side plate can move relative to the milling chamber to adjust its height. The adjusting hole and the connecting hole are preferably arc-shaped holes with a common center.

[0015] Further, the connecting part further comprises a side stop plate provided outside the side plate and fixed with the milling chamber for limiting the left and right movement of the side plate.

[0016] Further, the adjusting bolt comprises a bolt body and a nut matched with the bolt body, the head of the bolt body is hingedly connected with the adjusting arm, the adjusting bolt is provided with a second connecting seat fixed to the milling chamber, the second connecting seat is provided with a through hole for the bolt body to pass through, the bolt body passes through the through hole and can move in the direction of pushing and pulling the adjusting arm to make it rotate, and the nut is clamped on both sides of the second connecting seat to fix the bolt body with the second connecting seat.

[0017] Further, the lifting mechanism comprises a lifting arm and a lifting drive, one end of the lifting arm is connected with the main frame, the other end of the lifting arm is connected with the milling and planing mechanism, and the lifting drive is hinged between the lifting arm and the main frame and is used for controlling the lifting of the end of the lifting arm close to the milling and planing mechanism.

[0018] The utility model discloses beneficial effect is:

[0019] 1, the utility model discloses a milling and planing mechanism and material collecting mechanism can be collected in time the pavement marking of milling and planing removal, avoid additional increase cleaning machinery, and dustproof effect is good, in addition under the suction effect of negative pressure induced draft fan, simultaneously played the heat dissipation effect to milling and planing drum, effectively prevent the sticky phenomenon of milling and planing hot melt resin marking, wherein the milling chamber between the connecting seat is elastic soft connection, compared with prior art utilizes hydraulic cylinder structure and carries out leveling, be favorable to guarantee that milling and planing drum keeps parallel with the road surface under multidimensional, to adapt to the road surface before and after, left and right high and low uneven situation, guarantee the marking milling quality under various different road conditions, and when meeting the road surface of high before low, also can guarantee that milling and planing drum adjusts in time automatically, avoid the occurrence of machine obstruction jamming phenomenon.

[0020] 2, the utility model further through the milling depth fine adjustment mechanism of setting can adjust the milling depth of milling drum milling pavement marking, compared with prior art adopts the mode of oil cylinder and adjusts the milling depth, and the adjustment precision is higher, and it is more suitable for the depth adjustment of millimeter level of road marking. DRAWINGS

[0021] Figure 1 It is the three-dimensional structure schematic diagram of an embodiment of the utility model;

[0022] Figure 2 It is the main view structure schematic diagram of an embodiment of the utility model;

[0023] Figure 3 It is Figure 2 the partial enlarged view of;

[0024] Figure 4 It is Figure 3 the partial enlarged view of;

[0025] In the figure: 1. main frame, 2. milling mechanism, 21. milling chamber, 210. abutting plate, 211. limiting column, 212. second connecting seat, 213. through hole, 214. end cover, 215. scale, 22. first connecting seat, 23. milling drum, 24. side plate, 241. adjusting hole, 242. connecting hole, 243. side baffle, 3. aggregate mechanism, 30. aggregate port, 31. aggregate bin, 32. conveying pipeline, 4. lifting mechanism, 41. lifting drive, 42. lifting arm, 5. milling depth fine adjustment mechanism, 51. adjusting bolt, 511. bolt body, 512. first nut, 513. second nut, 52. adjusting arm, 53. lever, 6. rubber flexible connection, 7. hook plate, 8. guide rod, 9. driving mechanism. DETAILED DESCRIPTION

[0026] The principle and features of the present application will be described below, and the examples are only used to explain the present application, and are not used to limit the scope of the present application.

[0027] As shown in the drawings, the road marking milling machine of the present embodiment comprises a main frame 1, a traveling mechanism and a driving mechanism 9, and a milling mechanism 2 and an aggregate mechanism 3 connected to the main frame 1, the aggregate mechanism 3 is located above the main frame 1, the driving mechanism 9 is located at the left side of the front side of the main frame 1, and the milling mechanism 2 is located at the right side of the front side of the main frame 1; the milling mechanism 2 is connected with a lifting mechanism 4 for controlling the lifting thereof, and the aggregate mechanism 3 comprises an aggregate bin 31 and a conveying pipeline 32;

[0028] The milling mechanism 2 comprises a milling chamber 21, the milling chamber 21 is connected with the lifting end of the lifting mechanism 4 through a first connecting seat 22, and the milling chamber 21 and the first connecting seat 22 are elastically and flexibly connected;

[0029] A milling drum 23 is rotatably arranged in the milling chamber 21, a aggregate port 30 is arranged on the milling chamber 21 in the direction of the tangent line of the milling circumference of the milling drum 23, the aggregate port 30 is connected to the aggregate bin 31 through the conveying pipeline 32, and a negative pressure induced draft fan (not shown in the figure) is connected to the aggregate bin 31, for collecting the marking waste milled down through the aggregate port 30 and conveying the marking waste to the aggregate bin 31;

[0030] Side plates 24 are arranged on both sides of the milling drum 23, the side plates 24 are movably connected to the milling chamber 21 in a height-adjustable manner, and a milling depth fine adjustment mechanism 5 for adjusting the height difference between the bottom edge of the side plate 24 and the bottom edge of the milling drum 23 is further connected between the side plate 24 and the milling chamber 21, and the adjusting precision of the milling depth fine adjustment mechanism 5 is millimeter level. A scale 215 is arranged on the top edge of the milling chamber 21 corresponding to the side plate 24, for indicating the current milling depth.

[0031] In the working condition that milling and planing pavement marking is needed, the milling mechanism 2 is lowered to the ground through the lifting mechanism 4, the milling depth is adjusted through the milling depth fine adjustment mechanism 5 to adapt to the height of the marking to be removed, then the milling drum 23 is started and the vehicle is driven to perform the milling marking work, in the milling marking process, the bottom edge of the side plate 24 is attached to the road surface, so that the side plate 24 always slides on the road surface; the waste after milling is collected through the material collecting port 30, the material conveying pipeline 32 and the material collecting bin 31.

[0032] In the embodiment, through the elastic soft connection between the milling chamber 21 and the first connecting seat 22, it can be ensured that the milling drum is always parallel to the road surface in multiple dimensions, so that the milling chamber runs up and down with the road surface slope to adapt to the left and right or front and back unevenness of the road surface, and the marking milling quality is guaranteed, for example, when the road surface is high in front and low in back, the milling chamber 21 can automatically adapt to the road surface, and the phenomenon that the machine is blocked is avoided under the non-elastic soft connection structure. Specifically, in the embodiment, the form of the elastic soft connection is that the milling chamber 21 is connected with the first connecting seat 22 through a plurality of rubber soft connections 6, and the specific form is an elastic rubber pad structure.

[0033] In addition, when the vehicle needs to be transferred after completing the milling work, the milling mechanism 2 is raised through the lifting mechanism 4, at this time, since the milling chamber 21 and the first connecting seat 22 are connected in a soft connection mode, in order to prevent the milling chamber 21 from sagging relative to the first connecting seat 22 during the lifting of the milling mechanism 2, in a preferred embodiment of the utility model, the milling chamber 21 and the first connecting seat 22 are further connected with an anti-sagging structure, which is used to prevent the milling chamber 21 from sagging due to the soft connection relationship between the milling chamber 21 and the first connecting seat 22 when the milling mechanism 2 is lifted. Specifically, in the embodiment, the anti-sagging structure can be provided as an inverted hook plate 7 structure, one end of which is fixed with the first connecting seat 22, the other end is located beside the milling chamber 21, and when the milling chamber 21 has a sagging trend, the other end abuts against the abutting plate 210 on the milling chamber 21, which is simple in structure and can effectively prevent the milling chamber 21 from sagging excessively when it is lifted.

[0034] In a preferred embodiment of the utility model, the milling depth fine adjustment mechanism 5 comprises an adjusting bolt 51 arranged outside the milling chamber 21 and an adjusting arm 52, the adjusting bolt 51 is movably connected with the milling chamber 21, the adjusting arm 52 is rotatably connected with the milling chamber 21, one end of the adjusting arm 52 is movably connected with the adjusting bolt 51, the other end of the adjusting arm 52 is connected with a push rod 53, the adjusting arm 52 can rotate with the movement of the adjusting bolt 51, so that the push rod 53 moves up and down, and the side plate 24 is provided with an adjusting hole 241 for inserting the push rod 53, so that the side plate 24 can be pushed up and down by the push rod 53.

[0035] The adjusting process of the above-mentioned milling depth fine adjustment mechanism 5 is as follows: by adjusting the movement of the adjusting bolt 51, a pushing or pulling action is performed on one end of the adjusting arm 52, thereby lifting or sinking the end of the adjusting arm 52, and since the adjusting arm 52 is rotationally connected to the milling chamber 21, the other end of the adjusting arm 52 is thereby sunk or lifted, thereby driving the push rod 53 to move up and down, and the push rod 53 inserted into the adjusting hole 241 of the side plate 24 pushes the side plate 24 to move up and down relative to the milling chamber 21, thereby adjusting the milling depth (i.e. the height difference between the bottom edge of the side plate 24 and the bottom edge of the milling drum 23).

[0036] On the basis of the above-mentioned embodiments, the movable connection of the side plate 24 and the milling chamber 21 is preferably that the side plate 24 is movably connected to the milling chamber 21 through a connecting part, the connecting part includes a limiting post 211 fixed to the milling chamber 21, and the side plate 24 is provided with a connecting hole 242 corresponding to the limiting post 211, the connecting hole 242 is preferably an arc-shaped hole structure, and the limiting post 211 is located in the connecting hole 242 and can slide relative to the side plate 24 in the connecting hole 242, so that when the push rod 53 pushes the side plate 24, the side plate 24 can move up and down relative to the milling chamber 21 to realize the adjustment of its height. When the push rod 53 pushes the side plate 24, the side plate 24 moves relative to the limiting post 211 through the connecting hole 242, and the limiting post 211 is fixed to the milling chamber 21, thereby making the side plate 24 move up and down relative to the milling chamber 21. In addition, in order to prevent the limiting post 211 from sliding out of the connecting hole 242, the outer end of the limiting post 211 located outside the side plate 24 is further provided with an end cover 214 with an outer diameter greater than that of the connecting hole 242.

[0037] In the above-mentioned embodiments, the adjusting hole 241 and the connecting hole 242 are preferably arc-shaped hole structures, which are designed to ensure the stability of the side plate 24 during the up-down adjustment and avoid jamming.

[0038] Further, the connecting part further includes a side stop plate 243, which is arranged outside the side plate 24 and is fixed to the milling chamber 21, and is used for limiting the left-right movement of the side plate 24.

[0039] In a preferred embodiment of the utility model, the adjusting bolt 51 includes a bolt body 511 and a nut matched with the bolt body 511, as shown in Figure 4The head of the bolt body 511 is hingedly connected with the adjusting arm 52, the adjusting bolt 51 is provided with a second connecting base 212 fixed to the milling chamber 21, the second connecting base 212 is provided with a through hole 213 for the bolt body 511 to pass through, the bolt body 511 passes through the through hole 213 and can move in the through hole 213 in the direction of pushing and pulling the adjusting arm 52 to make it rotate, and the first nut 512 and the second nut 513 are clamped on the two sides of the second connecting base 212 respectively for fixing the bolt body 511 with the second connecting base 212. Figure 4 When the adjusting bolt 51 is adjusted to move (up and down, for example), only the first nut 512 and the second nut 513 are loosened, then the bolt body 511 is moved to the appropriate position relative to the second connecting base 212 until the push rod 53 on the right side of the figure adjusts the side plate 24 to the appropriate position, and then the first nut 512 and the second nut 513 are tightened to be clamped on the two sides of the second connecting base 212, so that the bolt body 511 is fixed again. Through the connecting structure of the adjusting bolt 51 and the milling chamber 21, the end of the adjusting arm 52 hingedly connected to the head of the bolt body 511 swings during the movement of the bolt body 511, so as to realize the adjustment of the side plate 24 by the push rod 53, which is simple in structure and convenient to adjust and fix.

[0040] In the above embodiment, the lifting mechanism 4 is used to adjust the lifting of the whole milling mechanism, the lifting mechanism 4 comprises a lifting arm 42 and a lifting drive 41, one end of the lifting arm 42 is connected with the main frame 1, the other end is connected with the milling mechanism 2, and the lifting drive 41 is hingedly connected between the lifting arm 42 and the main frame 1 and is used to control the lifting of the end of the lifting arm 42 close to the milling mechanism 2. In this embodiment, the lifting drive 41 can be a hydraulic cylinder, and the lifting arm 42 can adopt a double-link parallelogram structure, one end of which is hingedly connected to the main frame, and the other end is hingedly connected to the first connecting base 22. It is worth noting that the lifting mechanism 4 is prior art, and other modes except the present embodiment will not be described here. The embodiments listed in the present embodiment are only used to explain the technical solution and are not limited thereto.

[0041] On the basis of the above embodiment, in a preferred embodiment of the present application, the milling chamber 21 is further connected with a guide rod 8 extending forward, which is used to assist the driver in judging the position of the marking line during the walking operation of the vehicle, and has a guide wheel at the bottom.

Claims

1. A road marking milling machine, characterized in that, The milling mechanism (2) is connected with the lifting mechanism (4) for controlling the lifting thereof, and the material collecting mechanism (3) comprises a material collecting bin (31) and a material conveying pipeline (32); The milling mechanism (2) comprises a milling chamber (21), which is connected with the lifting end of the lifting mechanism (4) through a first connecting seat (22), and the milling chamber (21) and the first connecting seat (22) are elastically and softly connected; The milling chamber (21) is provided with a milling drum (23) rotating therein, and the milling chamber (21) is provided with a material collecting port (30) corresponding to the tangential direction of the milling circumference of the milling drum (23), the material collecting port (30) is communicated to the material collecting bin (31) through the material conveying pipeline (32), and the material collecting bin (31) is connected with a negative pressure induced fan; The milling drum (23) is provided with side plates (24) on both sides, the side plates (24) are movably connected with the milling chamber (21) in a height-adjustable manner, and a milling depth fine adjustment mechanism (5) for adjusting the height difference between the bottom edge of the side plate (24) and the bottom edge of the milling drum (23) is further connected between the side plate (24) and the milling chamber (21).

2. The road marking milling machine according to claim 1, characterized in that, The elastic and soft connection between the milling chamber (21) and the first connecting seat (22) is in the form that the milling chamber (21) is connected with the first connecting seat (22) through a rubber soft connection (6) structure.

3. The road marking milling machine according to claim 1, characterized in that, The milling chamber (21) is connected with a guide rod (8) on the front side.

4. The road marking milling machine of claim 1, wherein, The milling chamber (21) and the first connecting seat (22) are further connected with an anti-sagging structure for preventing the milling chamber (21) from sagging when the milling mechanism (2) is lifted due to the soft connection relationship between the milling chamber (21) and the first connecting seat (22).

5. The road marking milling machine according to claim 4, characterized in that, The anti-sagging structure is an inverted hook plate (7) structure, one end of which is fixed with the first connecting seat (22), and the other end is located beside the milling chamber (21) and abuts against the abutting plate (210) on the milling chamber (21) when the milling chamber (21) tends to sag.

6. The road marking milling machine of claim 1, wherein, The milling depth fine adjustment mechanism (5) comprises an adjusting bolt (51) arranged outside the milling chamber (21), an adjusting arm (52), the adjusting bolt (51) is movably connected with the milling chamber (21), the adjusting arm (52) is rotatably connected with the milling chamber (21), one end of the adjusting arm (52) is movably connected with the adjusting bolt (51), the other end of the adjusting arm (52) is connected with a push rod (53), the adjusting arm (52) can rotate with the movement of the adjusting bolt (51) to make the push rod (53) move up and down, and the adjusting hole (241) is arranged on the side plate (24) for inserting the push rod (53) to make the side plate (24) be pushed up and down by the push rod (53).

7. The road marking milling machine according to claim 6, characterized in that The side plate (24) is movably connected with the milling chamber (21) through a connecting part, the connecting part comprises a limiting post (211) fixed to the milling chamber (21), the side plate (24) is provided with a connecting hole (242) corresponding to the limiting post (211), the limiting post (211) is located in the connecting hole (242) and can slide in the connecting hole (242) relative to the side plate (24), so that when the lever (53) drives the side plate (24), the side plate (24) can move relative to the milling chamber (21) to realize the height adjustment of the side plate (24).

8. The road marking milling machine according to claim 7, characterized in that The connecting part further comprises a side baffle (243) arranged outside the side plate (24) and fixed with the milling chamber (21), for limiting the left and right movement of the side plate (24).

9. The road marking milling machine according to claim 6, characterized in that, The adjusting bolt (51) comprises a bolt body (511) and a nut matched with the bolt body (511), the head of the bolt body (511) is hingedly connected with the adjusting arm (52), the adjusting bolt (51) is provided with a second connecting seat (212) fixed to the milling chamber (21), the second connecting seat (212) is provided with a through hole (213) for the bolt body (511) to pass through, the bolt body (511) passes through the through hole (213) and can move in the through hole (213) in the direction of pushing and pulling the adjusting arm (52) to make it rotate, and the nut is clamped on both sides of the second connecting seat (212) to fix the bolt body (511) with the second connecting seat (212).

10. The road marking milling machine of claim 1, wherein, The lifting mechanism (4) comprises a lifting arm (42) and a lifting drive (41), one end of the lifting arm (42) is connected with the main frame (1), the other end is connected with the milling mechanism (2), and the lifting drive (41) is hingedly connected between the lifting arm (42) and the main frame (1) to control the lifting of the end of the lifting arm (42) close to the milling mechanism (2).

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