Pavement milling device

Abstract

The utility model discloses a pavement milling device and belongs to the technical field of pavement construction equipment. Comprising an engineering vehicle body and a milling machine, a main mounting base is transversely mounted on the rear side of the engineering vehicle body, a first milling adjusting base is arranged on the main mounting base, a second milling adjusting base is further mounted on the first milling adjusting base, and the lower portion of the milling machine is rotationally connected with the second milling adjusting base; a transverse telescopic adjusting mechanism is arranged between the upper part of the milling machine and the second milling adjusting base, the second milling adjusting base is rotationally arranged on the first milling adjusting base, and a longitudinal telescopic adjusting mechanism is arranged between the first milling adjusting base and the second milling adjusting base. According to the utility model, the front-back angle of the milling machine is adjusted through the transverse telescopic adjusting mechanism, and the left-right angle of the milling machine is adjusted through the longitudinal telescopic adjusting mechanism, so that the milling machine is suitable for excavation work of various uneven pavements, and the working efficiency and the pavement patching effect are greatly improved.

Description

Technical Field

[0001] The invention discloses a road surface milling device, belonging to the technical field of road surface construction equipment. Background Art

[0002] Damaged paved roads need repairing. To begin repairing, the damaged road surface must first be milled and then the repair material is applied to the damaged area. Traditionally, milling operations involved pushing a milling machine to the road to be repaired using a cart, which was inconvenient. Chinese utility model patent CN221255152U discloses a mining milling and bulldozing machine. This machine is mounted on an engineering vehicle and can be carried by the vehicle, resolving the inconvenience of movement and operation.

[0003] However, after the milling machine is installed on the engineering vehicle, due to the large size of the vehicle, the position of the vehicle cannot be flexibly adjusted, and the angle of the vehicle body cannot be adjusted. When facing severely damaged road sections, due to the bumpy road surface, the milling machine is difficult to mill the road surface normally, affecting subsequent repair work. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a road milling device which can adjust the milling machine at multiple angles and is easy to use.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: the road milling device includes an engineering vehicle body and a milling machine, a main mounting seat is horizontally installed on the rear side of the engineering vehicle body, a first milling adjustment base is provided on the main mounting seat, a second milling adjustment base is also installed on the first milling adjustment base, the lower part of the milling machine is rotatably connected to the second milling adjustment base, a transverse telescopic adjustment mechanism is provided between the upper part of the milling machine and the second milling adjustment base, the second milling adjustment base is rotatably arranged on the first milling adjustment base, and a longitudinal telescopic adjustment mechanism is provided between the first milling adjustment base and the second milling adjustment base.

[0006] Preferably, the transverse telescopic adjustment mechanism is a transverse adjustment oil cylinder, and both ends of the transverse adjustment oil cylinder are rotatably connected to the milling machine and the second milling adjustment base respectively.

[0007] Preferably, a lateral adjustment cylinder is provided on each side of the milling machine.

[0008] Preferably, a mounting circular hole is provided on the second milling adjustment base, a mounting shaft passing through the mounting circular hole is provided on the first milling adjustment base, and a limit plate is provided on the side of the second milling adjustment base away from the first milling adjustment base, and the limit plate is fixedly connected to the mounting shaft.

[0009] Preferably, the longitudinal telescopic adjustment mechanism is a longitudinal adjustment oil cylinder, and both ends of the longitudinal adjustment oil cylinder are rotatably connected to the first milling adjustment base and the second milling adjustment base respectively.

[0010] Preferably, the first milling adjustment base is slidably arranged on the main mounting seat, and a transverse push-pull mechanism is provided between the first milling adjustment base and the main mounting seat.

[0011] Preferably, the lateral push-pull mechanism is a push-pull oil cylinder, a connecting ear plate is provided on one side of the first milling adjustment base, one end of the push-pull oil cylinder is connected to the main mounting seat, and the other end of the push-pull oil cylinder is connected to the connecting ear plate.

[0012] Preferably, a hydraulic oil electromagnetic reversing valve is provided on the main mounting seat, the hydraulic oil electromagnetic reversing valve is connected to the push-pull cylinder and the milling machine, and a protective cover is provided on the outside of the hydraulic oil electromagnetic reversing valve.

[0013] Preferably, the protective cover includes a top plate, a first side plate, a second side plate and a third side plate, and the first side plate and the second side plate are respectively installed on two opposite sides of the top plate, wherein the first side plate is fixedly connected to the main mounting seat, and the third side plate is arranged on the side of the top plate away from the milling machine, and both sides of the third side plate are spaced apart from the first side plate and the second side plate.

[0014] Preferably, the transverse telescopic adjustment mechanism and the longitudinal telescopic adjustment mechanism are both hydraulic cylinders, and the hydraulic oil electromagnetic reversing valve is also connected to the transverse telescopic adjustment mechanism and the longitudinal telescopic adjustment mechanism.

[0015] Compared with the prior art, the above technical solution of the road milling device has the following beneficial effects:

[0016] The utility model adjusts the front and rear angles of the milling machine through the transverse telescopic adjustment mechanism and adjusts the left and right angles of the milling machine through the longitudinal telescopic adjustment mechanism, thereby making the milling machine suitable for excavation work on various uneven roads, greatly improving work efficiency and road repair effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the road milling device.

[0018] Figure 2 A perspective view of the main mount and the milling machine.

[0019] Figure 3 A three-dimensional diagram of the protective cover.

[0020] Figure 4 Front view of the main mount and milling machine.

[0021] Figure 5 for Figure 4 Cross-sectional view at AA in the middle.

[0022] Among them: 1. Engineering vehicle body 2. Main mounting seat 3. Milling machine 4. Push-pull cylinder 5. First milling adjustment base 6. Second milling adjustment base 7. Transverse adjustment cylinder 8. Longitudinal adjustment cylinder 9. Hydraulic oil solenoid reversing valve 10. Protective cover 11. Connecting ear plate 12. Mounting shaft 13. Limit plate 101. Top plate 102. First side plate 103. Second side plate 104. Third side plate 105. Make way groove. DETAILED DESCRIPTION

[0023] Figures 1 to 5 This is the best embodiment of the road milling device. Figures 1 to 5 The utility model is further described.

[0024] Reference Figure 1 The road milling device comprises a vehicle body 1 and a milling machine 3. A main mounting base 2 is laterally mounted on the rear side of the vehicle body 1, and the milling machine 3 is mounted on the main mounting base 2. A lifting cylinder (not shown) is connected to the main mounting base 2 to drive it up and down. The lifting cylinder lowers the milling machine 3 to the ground to perform milling operations.

[0025] See also Figure 2 A first milling adjustment base 5 is provided on the main mounting seat 2, and a second milling adjustment base 6 is also installed on the first milling adjustment base 5. The lower part of the milling machine 3 is rotatably connected to the second milling adjustment base 6, and a transverse telescopic adjustment mechanism is provided between the upper part of the milling machine 3 and the second milling adjustment base 6. The second milling adjustment base 6 is rotatably set on the first milling adjustment base 5, and a longitudinal telescopic adjustment mechanism is provided between the first milling adjustment base 5 and the second milling adjustment base 6.

[0026] The transverse telescopic adjustment mechanism in this embodiment is a transverse adjustment cylinder 7, the two ends of which are rotatably connected to the milling machine 3 and the second milling adjustment base 6. To ensure stable operation of the milling machine 3, this embodiment has a transverse adjustment cylinder 7 on both sides of the milling machine 3. The longitudinal telescopic adjustment mechanism is a longitudinal adjustment cylinder 8, the two ends of which are rotatably connected to the first milling adjustment base 5 and the second milling adjustment base 6.

[0027] In order to further adjust the milling machine 3, the first milling adjustment base 5 is slidably mounted on the main mounting base 2, and a transverse push-pull mechanism is provided between the first milling adjustment base 5 and the main mounting base 2. The transverse push-pull mechanism can adjust the horizontal position of the milling machine 3, making it more flexible to use and reducing the workload of adjusting the vehicle position, so that the milling machine 3 can be moved to a suitable position very conveniently.

[0028] The transverse push-pull mechanism in this embodiment is a push-pull cylinder 4 , one end of which is connected to the main mounting seat 2 , and the other fixed end of the push-pull cylinder 4 is fixedly connected to the first milling adjustment base 5 .

[0029] A hydraulic oil electromagnetic reversing valve 9 is provided on the main mounting seat 2. The milling machine 3 is driven by a hydraulic motor. The hydraulic oil electromagnetic reversing valve 9 is connected to the push-pull cylinder 4, the milling machine 3, the lateral adjustment cylinder 7 and the longitudinal adjustment cylinder 8. The hydraulic oil of the oil pump of the engineering vehicle body 1 is supplied to the push-pull cylinder 4, the milling machine 3, the lateral adjustment cylinder 7 and the longitudinal adjustment cylinder 8 through the hydraulic oil electromagnetic reversing valve 9.

[0030] In order to prevent the hydraulic oil electromagnetic reversing valve 9 from being accidentally damaged during the construction process, a protective cover 10 is provided on the outer side of the hydraulic oil electromagnetic reversing valve 9.

[0031] See also Figure 3 The protective cover 10 includes a top plate 101, a first side plate 102, a second side plate 103, and a third side plate 104. The first side plate 102 and the second side plate 103 are respectively mounted on opposite sides of the top plate 101. The first side plate 102 is fixedly connected to the main mounting base 2, and the third side plate 104 is disposed on a side of the top plate 101 away from the milling machine 3. Both sides of the third side plate 104 are spaced apart from the first side plate 102 and the second side plate 103. To facilitate the connection of the hydraulic oil pipe, a clearance groove 105 is also provided on the top plate 101.

[0032] See also Figure 4-5 A connecting ear plate 11 is provided on one side of the first milling adjustment base 5, and the other end of the push-pull oil cylinder 4 is connected to the connecting ear plate 11. A mounting circular hole is opened on the second milling adjustment base 6, and a mounting shaft 12 is provided on the first milling adjustment base 5 to pass through the mounting circular hole. A limit plate 13 is provided on the side of the second milling adjustment base 6 away from the first milling adjustment base 5, and the limit plate 13 is fixedly connected to the mounting shaft 12.

[0033] Guide rails are provided on the upper and lower sides of the main mounting seat 2 , and U-shaped sliders slidably connected to the guide rails are provided on the upper and lower sides of the first milling adjustment base 5 to ensure that the milling machine 3 moves stably along the main mounting seat 2 .

[0034] Working process: Move the engineering vehicle body 1 to the road surface to be repaired, move the milling machine 3 to the top of the road surface to be repaired by the push-pull cylinder 4, and then lower the main mounting base 2 and the milling machine 3 to the road surface to be repaired by the lifting cylinder, adjust the front and rear angles of the milling machine 3 by the lateral telescopic adjustment mechanism, and adjust the left and right angles of the milling machine 3 by the longitudinal telescopic adjustment mechanism. After the milling machine 3 is adjusted to a suitable angle and fits with the road surface, the hydraulic motor drives the milling machine 3 to start working, excavate the road surface, and then fill the excavated pits that cannot be repaired after cleaning to complete the road surface repair.

[0035] In other embodiments, the transverse telescopic adjustment mechanism and the longitudinal telescopic adjustment mechanism may also adopt other structural forms such as a screw motor.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other manner. Any person skilled in the art may utilize the above disclosed technical content to modify or remodel the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A road milling device, characterized in that: The invention comprises an engineering vehicle body (1) and a milling machine (3), wherein a main mounting seat (2) is transversely mounted on the rear side of the engineering vehicle body (1), a first milling adjustment base (5) is provided on the main mounting seat (2), a second milling adjustment base (6) is further mounted on the first milling adjustment base (5), the lower part of the milling machine (3) is rotatably connected to the second milling adjustment base (6), a transverse telescopic adjustment mechanism is provided between the upper part of the milling machine (3) and the second milling adjustment base (6), the second milling adjustment base (6) is rotatably mounted on the first milling adjustment base (5), and a longitudinal telescopic adjustment mechanism is provided between the first milling adjustment base (5) and the second milling adjustment base (6).

2. The road milling device according to claim 1, characterized in that: The transverse telescopic adjustment mechanism is a transverse adjustment oil cylinder (7), and both ends of the transverse adjustment oil cylinder (7) are rotatably connected to the milling machine (3) and the second milling adjustment base (6).

3. The road milling device according to claim 2, characterized in that: A lateral adjustment oil cylinder (7) is provided on each side of the milling machine (3).

4. The road milling device according to claim 1, characterized in that: A mounting circular hole is provided on the second milling adjustment base (6), a mounting shaft (12) passing through the mounting circular hole is provided on the first milling adjustment base (5), and a limiting plate (13) is provided on a side of the second milling adjustment base (6) away from the first milling adjustment base (5), and the limiting plate (13) is fixedly connected to the mounting shaft (12).

5. The road milling device according to claim 1, characterized in that: The longitudinal telescopic adjustment mechanism is a longitudinal adjustment oil cylinder (8), and the two ends of the longitudinal adjustment oil cylinder (8) are rotatably connected to the first milling adjustment base (5) and the second milling adjustment base (6).

6. The road milling device according to claim 1, characterized in that: The first milling adjustment base (5) is slidably arranged on the main mounting base (2), and a transverse push-pull mechanism is provided between the first milling adjustment base (5) and the main mounting base (2).

7. The road milling device according to claim 6, characterized in that: The lateral push-pull mechanism is a push-pull oil cylinder (4), a connecting ear plate (11) is provided on one side of the first milling adjustment base (5), one end of the push-pull oil cylinder (4) is connected to the main mounting seat (2), and the other end of the push-pull oil cylinder (4) is connected to the connecting ear plate (11).

8. The road milling device according to claim 7, characterized in that: A hydraulic oil electromagnetic reversing valve (9) is provided on the main mounting seat (2), the hydraulic oil electromagnetic reversing valve (9) is connected to the push-pull cylinder (4) and the milling machine (3), and a protective cover (10) is provided on the outside of the hydraulic oil electromagnetic reversing valve (9).

9. The road milling device according to claim 8, characterized in that: The protective cover (10) comprises a top plate (101), a first side plate (102), a second side plate (103) and a third side plate (104), wherein the first side plate (102) and the second side plate (103) are respectively mounted on two opposite sides of the top plate (101), wherein the first side plate (102) is fixedly connected to the main mounting seat (2), and the third side plate (104) is arranged on a side of the top plate (101) away from the milling machine (3), and both sides of the third side plate (104) are spaced apart from the first side plate (102) and the second side plate (103).

10. The road milling device according to claim 8, characterized in that: The hydraulic oil electromagnetic reversing valve (9) is also connected to the transverse telescopic adjustment mechanism and the longitudinal telescopic adjustment mechanism.

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