Hydraulic milling drill and working method thereof

Abstract

The present invention discloses a hydraulic milling drill and a working method thereof. The milling drill comprises a movable body, a boom, a swing arm oil cylinder, a milling drill assembly, and a posture adjustment oil cylinder. The boom is rotatably connected to the front end of the body, the bottom end of the swing arm oil cylinder is rotatably connected to the body, the output end of the swing arm oil cylinder is rotatably connected to the boom, the milling drill assembly is rotatably connected to the front end of the boom, the bottom end of the posture adjustment oil cylinder is rotatably connected to the boom, and the output end of the posture adjustment oil cylinder is rotatably connected to the milling drill assembly. The milling drill has good working stability during milling and drilling, and adopts hydraulic drive, strong power, high milling and drilling efficiency, and is suitable for crushing and milling large-volume rocks. The construction cost is low and the construction environment is good.

Description

Technical Field

[0001] The present invention relates to the technical field of rock milling and drilling, and in particular to a hydraulic milling and drilling machine and a working method thereof. Background Art

[0002] Mining, tunneling, roadway construction, and other operations often involve facing a whole surface of rock. The lack of an open surface relative to the direction of crushing creates significant challenges for the process, as the process requires hollowing out the interior of the mountain. Common methods include explosives and hammer drilling. However, explosive blasting has significant limitations and cannot be used in many construction environments. Hammer drilling, on the other hand, suffers from low efficiency, high noise levels, and excessive dust, especially when working with hard rock.

[0003] Therefore, a process of milling and drilling first and then crushing can be adopted to achieve rock fracture and crushing to overcome the above problems. However, there is currently a lack of stable and efficient milling and drilling equipment. Summary of the Invention

[0004] The object of the present invention is to provide a hydraulic milling drill and a working method thereof, which solve the problems of poor operating stability and low efficiency of existing milling drill equipment.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A hydraulic milling drill comprises a movable body, a boom, a swing arm cylinder, a milling drill assembly and a posture adjustment cylinder, wherein the boom is rotatably connected to the front end of the body, the bottom end of the swing arm cylinder is rotatably connected to the body, the output end of the swing arm cylinder is rotatably connected to the boom, the milling drill assembly is rotatably connected to the front end of the boom, the bottom end of the posture adjustment cylinder is rotatably connected to the boom, and the output end of the posture adjustment cylinder is rotatably connected to the milling drill assembly.

[0007] A further improvement is that a crawler wheel is provided at the bottom end of the machine body, and a hydraulic system for providing a hydraulic power source is provided on the machine body.

[0008] A further improvement is that the rotatable connection is achieved through a matching structure between the shaft seat and the rotating shaft.

[0009] A further improvement is that the milling drill assembly consists of a cylinder, a drill sleeve, a propulsion cylinder, a hydraulic motor and a milling drill bit. The cylinder is connected to the boom and the posture adjustment cylinder. The front end of the cylinder is open. The drill sleeve is movably arranged inside the cylinder. The propulsion cylinder is arranged in the cylinder and the output end of the propulsion cylinder is connected to the drill sleeve. The hydraulic motor and the milling drill bit are installed on the drill sleeve, and the output end of the hydraulic motor is connected to the milling drill bit.

[0010] A further improvement is that there are a plurality of propulsion cylinders, which are evenly distributed at the end of the drill sleeve.

[0011] The present invention also provides a working method of the hydraulic milling drill, comprising the following steps:

[0012] The arm is driven by the telescopic drive of the swing arm cylinder to make the arm swing up and down, and the attitude adjustment cylinder is driven by the telescopic drive to change the attitude inclination of the milling and drilling assembly so that the milling and drilling assembly is aligned with the position to be drilled on the rock surface.

[0013] The drill sleeve is then pushed forward along the inside of the cylinder by the thrust cylinder, so that the milling drill bit extends out of the cylinder and fits the rock surface. The milling drill bit is then driven to rotate by the hydraulic motor to complete the hydraulic milling and drilling work.

[0014] The beneficial effects of the present invention are that the milling drill has good working stability during milling and drilling, and adopts hydraulic drive, strong power, high milling and drilling efficiency, can be applied to the crushing and milling drilling of large-volume rocks, has low construction cost, and good construction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the hydraulic milling drill;

[0016] Figure 2 is a cross-sectional schematic diagram of a milling and drilling assembly;

[0017] In the figure: 1. Machine body; 2. Boom; 3. Swing arm cylinder; 4. Milling drill assembly; 401. Cylinder; 402. Drill sleeve; 403. Propulsion cylinder; 404. Hydraulic motor; 405. Milling drill bit; 5. Attitude adjustment cylinder; 6. Track wheel; 7. Hydraulic system. DETAILED DESCRIPTION

[0018] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Combine Figure 1 and Figure 2 As shown, a hydraulic milling drill rig includes a movable body 1, a boom 2, a swing arm cylinder 3, a milling drill assembly 4 and a posture adjustment cylinder 5. The boom 2 is rotatably connected to the front end of the body 1, the bottom end of the swing arm cylinder 3 is rotatably connected to the body 1, the output end of the swing arm cylinder 3 is rotatably connected to the boom 2, the milling drill assembly 4 is rotatably connected to the front end of the boom 2, the bottom end of the posture adjustment cylinder 5 is rotatably connected to the boom 2, and the output end of the posture adjustment cylinder 3 is rotatably connected to the milling drill assembly 4.

[0020] In the present invention, a track wheel 6 is provided at the bottom end of the machine body 1, and the track wheel 6 is driven by a motor. A hydraulic system 7 for providing a hydraulic power source is provided on the machine body 1, and the hydraulic system 7 includes a hydraulic pump, a valve, a hydraulic oil tank, etc.

[0021] In the present invention, rotatable connection refers to rotation in the vertical plane, so that the telescopic drive of the swing arm cylinder 3 can realize the up and down swing of the arm 2, and the telescopic drive of the posture adjustment cylinder 5 can realize the change of the inclination posture of the milling drill assembly 4 itself, which is convenient for drilling holes of different heights and angles.

[0022] In the present invention, the rotatable connection is achieved through the matching structure of the axle seat and the rotating shaft. For example, the rotatable connection between the boom 2 and the swing arm cylinder 3 can be achieved by providing an axle seat with a hole on the boom 2 and a rotating shaft at the output end of the swing arm cylinder 3. The rotating shaft is movably inserted into the axle seat, so that the boom 2 and the swing arm cylinder 3 can rotate freely.

[0023] In the present invention, the milling drill assembly 4 is composed of a cylinder 401, a drill sleeve 402, a propulsion cylinder 403, a hydraulic motor 404 and a milling drill bit 405. The cylinder 401 is connected to the arm 2 and the posture adjustment cylinder 5. The front end of the cylinder 401 is open, and the drill sleeve 402 is movably arranged inside the cylinder 401. The propulsion cylinder 403 is arranged in the cylinder 401 and the output end of the propulsion cylinder 403 is connected to the drill sleeve 402. The hydraulic motor 404 and the milling drill bit 405 are installed on the drill sleeve 402, and the output end of the hydraulic motor 404 is connected to the milling drill bit 405.

[0024] In the present invention, there are a plurality of propulsion cylinders 403 , which are evenly distributed at the end of the drill sleeve 402 , providing a stable thrust to ensure that the milling drill bit 405 can drill stably.

[0025] In the present invention, the arm swing cylinder 3 is located below the boom 2 , and the posture adjustment cylinder 5 is located above the boom 2 .

[0026] The present invention also provides a working method of the hydraulic milling drill, which comprises the following steps:

[0027] The arm 2 is swung up and down by the telescopic drive of the swing arm cylinder 3, and the attitude adjustment cylinder 5 is telescopically driven to change the attitude inclination of the milling and drilling assembly 4 so that the milling and drilling assembly 4 is exactly aligned with the position to be milled and drilled on the rock surface;

[0028] The drill sleeve 402 is then pushed forward along the inside of the cylinder 401 by the propulsion cylinder 403, so that the milling drill bit 405 extends out of the cylinder 401 and fits the rock surface. Then, the milling drill bit 405 is driven to rotate by the hydraulic motor 404 to complete the hydraulic milling and drilling work.

[0029] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A hydraulic milling drill, comprising a movable body (1), characterized in that: It also includes a boom (2), a swing arm oil cylinder (3), a milling drill assembly (4) and a posture adjustment oil cylinder (5), wherein the boom (2) is rotatably connected to the front end of the machine body (1), the bottom end of the swing arm oil cylinder (3) is rotatably connected to the machine body (1), the output end of the swing arm oil cylinder (3) is rotatably connected to the boom (2), the milling drill assembly (4) is rotatably connected to the front end of the boom (2), the bottom end of the posture adjustment oil cylinder (5) is rotatably connected to the boom (2), and the output end of the posture adjustment oil cylinder (5) is rotatably connected to the milling drill assembly (4); The milling drill assembly (4) consists of a cylinder (401), a drill sleeve (402), a propulsion cylinder (403), a hydraulic motor (404) and a milling drill bit (405). The cylinder (401) is connected to the arm (2) and the attitude adjustment cylinder (5). The front end of the cylinder (401) is open. The drill sleeve (402) is movably arranged inside the cylinder (401). The propulsion cylinder (403) is arranged in the cylinder (401) and the output end of the propulsion cylinder (403) is connected to the drill sleeve (402). The hydraulic motor (404) and the milling drill bit (405) are installed on the drill sleeve (402), and the output end of the hydraulic motor (404) is connected to the milling drill bit (405). The working method of the hydraulic milling drill comprises the following steps: The arm (2) is swung up and down by the telescopic drive of the swing arm oil cylinder (3), and the attitude adjustment oil cylinder (5) is driven to change the attitude inclination of the milling drill assembly (4) so ​​that the milling drill assembly (4) is aligned with the position to be drilled on the rock surface; The drill sleeve (402) is then pushed forward along the inside of the cylinder (401) by the propulsion cylinder (403), so that the milling drill bit (405) extends out of the cylinder (401) and fits the rock surface. The milling drill bit (405) is then driven to rotate by the hydraulic motor (404), completing the hydraulic milling and drilling work.

2. A hydraulic milling drill according to claim 1, characterized in that: A crawler wheel (6) is provided at the bottom end of the machine body (1), and a hydraulic system (7) for providing a hydraulic power source is provided on the machine body (1).

3. The hydraulic milling drill according to claim 1, characterized in that: The rotatable connection is achieved through the matching structure between the shaft seat and the rotating shaft.

4. The hydraulic milling drill according to claim 1, characterized in that: There are a plurality of propulsion cylinders (403) evenly distributed at the end of the drill sleeve (402).

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