A rock drilling boom convenient for drilling core holes

Abstract

The present disclosure provides a rock drilling jumbolter facilitating the drilling of core holes, which relates to the technical field of rock drilling jumbolters and includes a rear translation seat, a curved arm, a front translation seat, a rotary swing oil cylinder, a crank arm, and a propulsion mechanism; the rear translation seat is vertically hinged to a rock drilling jumbo, enabling the rear translation seat to swing horizontally; one end of the curved arm is horizontally hinged to the rear translation seat, enabling the curved arm to swing vertically; the front translation seat is horizontally hinged to the other end of the curved arm, enabling the front translation seat to swing vertically; the rotary swing oil cylinder is vertically hinged to the front translation seat, enabling the rotary swing oil cylinder to swing horizontally; one end of the crank arm is connected to the rotary swing oil cylinder, and the rotary swing oil cylinder drives the crank arm to rotate circumferentially; the propulsion mechanism is horizontally hinged to the other end of the crank arm, enabling the propulsion mechanism to swing vertically, and the propulsion mechanism can move horizontally along its length direction. This rock drilling jumbolter has a compact structure, can be adjusted at multiple angles, has high flexibility and high precision.

Description

Technical Field

[0001] The present disclosure relates to the technical field of rock drilling booms, and more particularly to a rock drilling boom facilitating the drilling of relief holes. Background Art

[0002] A tunneling jumbo is a jumbo used for underground tunneling projects such as underground mine roadways, railway and highway tunnels, and hydraulic culverts. In mine exploitation operations, the tunneling jumbo plays a crucial role and is the main rock drilling tool for mine exploitation and the construction of mine roadways. During the construction of tunnels, underground projects, and mine exploitation, the tunneling jumbo is usually used to drill blasting holes by the drill and blast method. In the actual construction process, since there is usually only one free face for tunnel excavation blasting, in order to improve the blasting effect, multiple relief holes (also called cut holes) are often arranged at appropriate positions (usually in the lower central part) of the excavation section to make them detonate first, creating a free face for the blasting surface of adjacent blast holes, thereby improving the blasting effect.

[0003] The rock drilling boom is the working boom that supports the tunneling jumbo. The flexibility and reliability of the boom movement will affect the application range and production capacity of the tunneling jumbo.

[0004] Currently, there are a large number of mines in China with roadway cross-sections ranging from 2m×2m to 2.5m×2.5m. However, due to the lack of tunneling jumbos applicable to such small cross-section mine operations, and especially the lack of booms that are flexible and convenient to use for drilling relief holes in such tunneling jumbos, the tunneling operations in small cross-section (such as cross-sections of 2m×2m to 2.5m×2.5m) mines are relatively difficult. Summary of the Invention

[0005] In view of the fact that in the prior art, the rock drilling boom for drilling relief holes is not convenient, flexible enough, and has low applicability, the present disclosure provides a rock drilling boom facilitating the drilling of relief holes, which is convenient to use, highly flexible, and highly accurate.

[0006] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0007] Provide a rock drilling boom facilitating the drilling of relief holes, including a rear translation seat, a curved arm, a front translation seat, a rotary swing oil cylinder, a toggle arm, and a propulsion mechanism;

[0008] The rear translation seat is vertically hinged to the rock drilling jumbo, and a driving mechanism for driving the rear translation seat to swing horizontally is provided on the rear translation seat;

[0009] The curved arm has a bend, and the opening direction of the bend is upward. One end of the curved arm is horizontally hinged to the rear translation seat, enabling the curved arm to swing vertically;

[0010] The front translation seat is horizontally hinged to the other end of the crank arm, so that the front translation seat swings vertically;

[0011] The rotary swing oil cylinder is vertically hinged to the front translation seat, so that the rotary swing oil cylinder swings horizontally;

[0012] One end of the crank arm is connected to the rotary swing oil cylinder. The axis of the crank arm is perpendicular to the axis of the rotary swing oil cylinder. The rotary swing oil cylinder drives the crank arm to rotate circumferentially;

[0013] The propulsion mechanism includes a base and a thruster. The other end of the crank arm is horizontally hinged to the middle position of the base, so that the propulsion mechanism swings vertically. A driving mechanism for driving the thruster to translate along its length direction is also provided on the base.

[0014] In some embodiments, the driving mechanism provided on the rear translation seat is a first oil cylinder. The cylinder body of the first oil cylinder is installed on the rock drilling jumbo. The piston rod of the first oil cylinder is connected to the rear translation seat. The first oil cylinder is used to drive the crank arm to swing horizontally.

[0015] In some embodiments, a first protective member is provided on the rear translation seat. The first protective member and the rear translation seat are of an integral structure. The first oil cylinder is arranged inside the first protective member and on the side of the crank arm. The first protective member can protect the oil cylinder from being damaged by falling rocks, dust, etc. during the drilling operation.

[0016] In some embodiments, a second oil cylinder is provided on the crank arm. The second oil cylinder is located below the crank arm. The cylinder body of the second oil cylinder is horizontally hinged to the rear translation seat. The piston rod of the second oil cylinder is horizontally hinged to the crank arm. The second oil cylinder is used to drive the crank arm to swing vertically.

[0017] In some embodiments, a third oil cylinder is further provided on the crank arm. The third oil cylinder is located below the crank arm. The cylinder body of the third oil cylinder is horizontally hinged to the crank arm. The piston rod of the third oil cylinder is horizontally hinged to the front translation seat. The third oil cylinder is used to drive the front translation seat to swing vertically.

[0018] In some embodiments, a connecting member is provided on the crank arm. The connecting member is arranged below the crank arm and at the bent portion of the crank arm. The piston rod of the second oil cylinder is horizontally hinged to the connecting member. The cylinder body of the third oil cylinder is horizontally hinged to the connecting member.

[0019] In some embodiments, a fourth oil cylinder is provided on the front translation seat. The fourth oil cylinder is located on the side of the front translation seat. The cylinder body of the fourth oil cylinder is connected to the front translation seat. The piston rod of the fourth oil cylinder is vertically hinged to the rotary swing oil cylinder. The fourth oil cylinder is used to drive the rotary swing oil cylinder to swing horizontally.

[0020] In some embodiments, a second protective member is provided on the front translation base. The second protective member and the front translation base are of an integral structure. The fourth oil cylinder is disposed within the second protective member and is located on the side of the curved arm.

[0021] In some embodiments, a fifth oil cylinder is provided on the toggle arm. The cylinder block of the fifth oil cylinder is horizontally hinged to the base of the propulsion mechanism, and the piston rod of the fifth oil cylinder is horizontally hinged to the toggle arm. The fifth oil cylinder is used to drive the propulsion mechanism to swing vertically, thereby adjusting the pitch angle of the propulsion mechanism.

[0022] In some embodiments, the fifth oil cylinder is disposed on one side of the propulsion mechanism close to the working surface, leaving sufficient space at the rear of the propulsion mechanism for the installation of other components, and also enabling the components not to interfere with each other during use. Moreover, when the fifth oil cylinder is disposed in front of the propulsion mechanism, its pitching action is more labor-saving and the structure is more stable.

[0023] In some embodiments, reinforcing ribs are further provided on the toggle arm. The reinforcing ribs are arranged along the length direction of the toggle arm, making the structure of the toggle arm more stable and stronger in strength.

[0024] In some embodiments, a lifting ring is further provided on the toggle arm. The lifting ring is disposed at one end of the toggle arm close to the rotary swing oil cylinder. The lifting ring can be used for traction or for using the drill arm as a lifting arm.

[0025] Compared with the prior art, a rock drill arm for facilitating the drilling of a core hole provided by the present disclosure has a compact structure and high flexibility. Both joints at the two ends of the curved arm can swing horizontally and vertically. At the same time, its propulsion mechanism can also be adjusted in pitch, circumferential rotation, and horizontal movement in the front-rear direction, enabling multi-angle adjustment during the drilling operation, making its accuracy higher, and being very convenient to operate, with a wide range of applications, especially suitable for the tunneling operation of small-section mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present disclosure will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present disclosure. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0027] Figure 1 : Schematic diagram of the structure of a state of a rock drill arm for facilitating the drilling of a core hole provided by the present disclosure;

[0028] Figure 2 : Another angle schematic diagram of a state of a rock drill arm for facilitating the drilling of a core hole provided by the present disclosure;

[0029] Figure 3 : Schematic diagram of the second state of a rock drilling boom facilitating the drilling of a core hole provided by the present disclosure;

[0030] Figure 4 : Top view of the third state of a rock drilling boom facilitating the drilling of a core hole provided by the present disclosure;

[0031] Figure 5 : Top view of the fourth state of a rock drilling boom facilitating the drilling of a core hole provided by the present disclosure;

[0032] Figure 6 : Front view of the fifth state of a rock drilling boom facilitating the drilling of a core hole provided by the present disclosure;

[0033] Figure 7 : Front view of the sixth state of a rock drilling boom facilitating the drilling of a core hole provided by the present disclosure;

[0034] Among them, 1. Rear translation seat; 101. First protective member; 2. Curved arm; 201. Connecting member; 3. Front translation seat; 301. Second protective member; 4. Rotary swing oil cylinder; 5. L-shaped arm; 501. Suspension ring; 502. Reinforcing rib; 6. Feeding mechanism; 601. Base; 701. First oil cylinder; 702. Second oil cylinder; 703. Third oil cylinder; 704. Fourth oil cylinder; 705. Fifth oil cylinder. Specific embodiments

[0035] The following will describe the present disclosure in detail with reference to the accompanying drawings.

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following will further describe the present disclosure in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0037] Those skilled in the art should understand that in the present invention, the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0038] It should be specifically noted that, in order to clearly distinguish the pitching motion and the left - right swing of the structure, the "horizontal hinge" and "vertical hinge" in the present invention are simplified descriptions based on the normal operation state of the rock drilling boom. The "horizontal hinge" means that two connecting ends are hinged through a horizontal hinge axis parallel to the horizontal plane, so that after the two connecting ends are horizontally hinged, they can only rotate relative to each other in the vertical direction and cannot move in the horizontal direction; the "vertical hinge" means that two connecting ends are hinged through a vertical hinge axis perpendicular to the horizontal plane, so that after the two connecting ends are vertically hinged, they can only rotate relative to each other in the horizontal direction and cannot move in the vertical direction.

[0039] As Figures 1 to 7 shown, a rock drilling boom facilitating the drilling of a hollow - out hole provided by the present disclosure is described in detail as follows:

[0040] The rock drilling boom facilitating the drilling of a hollow - out hole includes a rear translation seat 1, a curved arm 2, a front translation seat 3, a rotary swing oil cylinder 4, a crank arm 5, and a propulsion mechanism 6. The rear translation seat 1 can be vertically hinged to the rock drilling jumbo, and the rear translation seat 1 can swing horizontally around its hinge point. One end of the curved arm 2 is horizontally hinged to the rear translation seat 1, and the curved arm 2 can swing vertically around its hinge point. The front translation seat 3 is horizontally hinged to the other end of the curved arm 2, and the front translation seat can swing vertically around its hinge point. The rotary swing oil cylinder 4 is vertically hinged to the front translation seat 3, and the rotary swing oil cylinder 4 can swing horizontally around its hinge point. Therefore, at the joints at both ends of the curved arm 2, it can swing horizontally and vertically, thereby realizing the adjustment of the up - down, left - right directions. Moreover, the joints at both ends of the two curved arms 2 can adjust the direction, making the accuracy of the drilling boom higher and the flexibility stronger. In addition, one end of the crank arm 5 is connected to the rotary swing oil cylinder 4, and the axis of the crank arm 5 is perpendicular to the axis of the rotary swing oil cylinder 4. The rotary swing oil cylinder 4 can drive the crank arm 5 to rotate circumferentially. The propulsion mechanism 6 is horizontally hinged to the other end of the crank arm 5. The propulsion mechanism 6 can swing vertically around its hinge point, and the propulsion mechanism 6 can move horizontally along its length direction. Therefore, the propulsion mechanism 6 can rotate circumferentially, adjust the angle, and the propulsion mechanism 6 can also be adjusted in pitch. At the same time, the propulsion mechanism 6 itself can move back and forth to adjust the distance, so that the drilling boom does not need to adopt a telescopic structure, greatly reducing the volume of the drilling boom, making its structure more compact and flexible, and being more suitable for the tunneling operation of small - section mines.

[0041] Furthermore, a first oil cylinder 701 is provided at the rear translation seat 1, and a first guard 101 is also provided on the rear translation seat 1. The first guard 101 and the rear translation seat 1 are an integral structure. The first oil cylinder 701 is provided in the first guard 101 and is located on the side of the crank arm 2. The piston rod of the first oil cylinder 701 is connected to the first guard 101, and the cylinder body of the first oil cylinder 701 is movably connected to the rock drilling trolley. The first oil cylinder 701 can drive the crank arm 2 to swing horizontally. Since the first oil cylinder 701 for controlling the horizontal swing of the crank arm 2 is provided on the side of the crank arm 2, the provision of the first guard 101 can protect the first oil cylinder 701 and prevent splashed stones and dust from accumulating on the oil cylinder during the rock drilling operation, thereby affecting its service life.

[0042] Furthermore, a second oil cylinder 702 is provided on the crank arm 2, and the second oil cylinder 702 is located below the crank arm 2. The crank arm 2 has a bend, and the opening direction of the bend faces upward. Such a configuration enables the crank arm 2 to provide some avoidance space for the propulsion mechanism 6, making the structure more compact. A connecting piece 201 is provided below the crank arm 2, and the connecting piece 201 is roughly located at the bend of the crank arm 2. The cylinder body of the second oil cylinder 702 is horizontally hinged to the rear translation seat 1, and the piston rod of the second oil cylinder 702 is connected to the connecting piece on the crank arm 2. 201 is horizontally hinged, and the second oil cylinder 702 can drive the curved arm to swing vertically; the curved arm 2 is also provided with a third oil cylinder 703, and the third oil cylinder 703 is located below the curved arm 2, and the cylinder body of the third oil cylinder 703 is horizontally hinged with the connecting piece 201 on the curved arm 2, and the piston rod of the third oil cylinder 703 is horizontally hinged with the front translation seat 3, and the third oil cylinder 703 can drive the front translation seat 3 to swing vertically. Similarly, the second oil cylinder 702 and the third oil cylinder 703 are arranged below the curved arm 2, which can also protect the cylinders.

[0043] Furthermore, a fourth oil cylinder 704 is provided on the front translation seat 3, and a second guard 301 is also provided on the front translation seat 3. The second guard 301 is an integrated structure with the front translation seat 3, and the second guard 301 is located on the side of the crank arm 2. In this embodiment, the second guard 301 and the first guard 101 are located on the same side of the crank arm 2. The fourth oil cylinder 704 is arranged in the second guard 301, and the cylinder body of the fourth oil cylinder 704 is connected to the second guard. The piston rod of the fourth oil cylinder 704 is vertically hinged to the rotary swing cylinder 4. The fourth oil cylinder 704 can drive the rotary swing cylinder 4 to swing horizontally. The setting of the second guard 301 also protects the fourth oil cylinder 704.

[0044] Further, one end of the swing arm 5 is connected to the front translation seat 3. The axis of the swing arm 5 is perpendicular to the axis of the rotary swing oil cylinder 4, that is, the swing arm 5 extends horizontally to the side of the curved arm 2. The other end of the swing arm 5 is horizontally hinged to the propulsion mechanism 6, so that the propulsion mechanism 6 is located on the side of the curved arm 2, making its structure very compact. At the same time, space is reserved for other mechanisms on the rock drilling jumbo. The propulsion mechanism 6 includes a base 601 and a thruster. The other end of the swing arm 5 is horizontally hinged to the middle position of the base 601, and the propulsion mechanism 6 is located above the swing arm 5. A drive mechanism for driving the thruster to move horizontally is provided on the base 601, so that the thruster can move along the length direction of the base 601. A fifth oil cylinder 705 is provided on the swing arm 5. The cylinder body of the fifth oil cylinder 705 is horizontally hinged to the base 601, and the piston rod of the fifth oil cylinder 705 is horizontally hinged to the swing arm 5. The fifth oil cylinder 705 can drive the propulsion mechanism 6 to swing vertically, so as to adjust the pitching angle of the propulsion mechanism 6. In addition, in this embodiment, the fifth oil cylinder 705 is arranged on the side of the propulsion mechanism 6 close to the working surface, that is, the hinge point of the fifth oil cylinder 705 is in front of the hinge point of the swing arm 5 and the base 601. In this way, enough space is reserved behind the propulsion mechanism 6 for the installation of other components, and it also makes each component not interfere with each other during use. Moreover, the fifth oil cylinder 705 is arranged in front of the propulsion mechanism 6, which also makes its pitching action more labor-saving and the structure more stable.

[0045] Further, a lifting ring 501 is also provided on the swing arm 5. The setting of the lifting ring 501 enables the drill arm to act as a lifting arm when necessary, or when the rock drilling jumbo breaks down and cannot move by itself, the lifting ring 501 can provide the condition for traction. And the lifting ring 501 is arranged at one end of the swing arm 5 close to the rotary swing oil cylinder 4, making it bear greater force. In addition, reinforcing ribs 502 are also provided on the swing arm 5. The reinforcing ribs 502 are arranged along the length direction of the swing arm 5, and the reinforcing ribs 502 connect the connection points at both ends of the swing arm 5. Since the propulsion mechanism 6 is installed at the other end of the swing arm 5, and the rotary swing oil cylinder 4 drives the swing arm 5 to rotate, thereby driving the propulsion mechanism 6 to rotate, but for the propulsion mechanism 6, its rotation is eccentric, so the burden on the swing arm 5 is relatively large. Therefore, the reinforcing ribs 502 on the swing arm 5 can make its structure more stable and have higher strength.

[0046] It should be particularly noted that in this embodiment, words related to orientation description such as "front", "rear", "upper", "lower", "left", and "right" are simplified descriptions based on the working state of the rock drilling arm. When the rock drilling arm is in the working state, the side close to the working surface is the front, and the opposite orientation is the rear.

[0047] Compared with the prior art, a rock drilling boom provided by the present disclosure is convenient for drilling core holes. Both joints at the two ends of its curved arm can swing horizontally and vertically. At the same time, its propulsion mechanism can rotate circumferentially, adjust in pitch and move back and forth. The boom has a compact structure, can be adjusted at multiple angles, has high precision, high flexibility, is convenient for operation, has a wide application range, and is especially suitable for mining operations in small cross-sections.

[0048] The above provides a detailed introduction to the present disclosure. Specific examples are used in this article to elaborate on the principle and implementation manner of the present disclosure. The description of the above embodiments is only used to help understand the present disclosure and its core idea. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present disclosure, several improvements and modifications can also be made to the present disclosure, and these improvements and modifications also fall within the protection scope of the claims of the present disclosure.

Claims

1. A rock drilling boom facilitating the drilling of a core hole, characterized in that: a rear translation seat (1), a curved arm (2), a front translation seat (3), a rotary swing oil cylinder (4), a crank arm (5), a propulsion mechanism (6); the rear translation seat (1) is vertically hinged to a rock drilling jumbo, and a driving mechanism for driving the rear translation seat (1) to swing horizontally is arranged on the rear translation seat (1); the curved arm (2) has a bend, and the opening direction of the bend faces upward. One end of the curved arm (2) is horizontally hinged to the rear translation seat (1) so that the curved arm (2) swings vertically; the front translation seat (3) is horizontally hinged to the other end of the curved arm (2) so that the front translation seat (3) swings vertically; the rotary swing oil cylinder (4) is vertically hinged to the front translation seat (3) so that the rotary swing oil cylinder (4) swings horizontally; one end of the crank arm (5) is connected to the rotary swing oil cylinder (4), and the axis of the crank arm (5) is perpendicular to the axis of the rotary swing oil cylinder (4). The rotary swing oil cylinder (4) drives the crank arm (5) to rotate circumferentially; the propulsion mechanism (6) includes a base (601) and a thruster. The other end of the crank arm (5) is horizontally hinged to the middle position of the base (601) so that the propulsion mechanism (6) swings vertically. A driving mechanism for driving the thruster to translate along its length direction is also arranged on the base (601); the driving mechanism arranged on the rear translation seat (1) is a first oil cylinder (701). The cylinder body of the first oil cylinder (701) is installed on the rock drilling jumbo, and the piston rod of the first oil cylinder (701) is connected to the rear translation seat (1). The first oil cylinder (701) is used for driving the curved arm (2) to swing horizontally; a second oil cylinder (702) is arranged on the curved arm (2). The second oil cylinder (702) is located below the curved arm (2). The cylinder body of the second oil cylinder (702) is horizontally hinged to the rear translation seat (1), and the piston rod of the second oil cylinder (702) is horizontally hinged to the curved arm (2). The second oil cylinder (702) is used for driving the curved arm (2) to swing vertically; a third oil cylinder (703) is also arranged on the curved arm (2). The third oil cylinder (703) is located below the curved arm (2). The cylinder body of the third oil cylinder (703) is horizontally hinged to the curved arm (2), and the piston rod of the third oil cylinder (703) is horizontally hinged to the front translation seat (3). The third oil cylinder (703) is used for driving the front translation seat (3) to swing vertically.

2. The rock drilling boom facilitating the drilling of a core hole according to claim 1, characterized in that: a first protective member (101) is further arranged on the rear translation seat (1). The first protective member (101) and the rear translation seat (1) are of an integral structure, and the first oil cylinder (701) is arranged inside the first protective member (101) and on the side of the curved arm (2).

3. The rock drilling boom facilitating the drilling of a core hole according to claim 1, characterized in that: A fourth oil cylinder (704) is arranged on the front translation seat (3). The fourth oil cylinder (704) is located on the side of the front translation seat (3). The cylinder block of the fourth oil cylinder (704) is connected to the front translation seat (3), and the piston rod of the fourth oil cylinder (704) is vertically hinged to the rotary swing oil cylinder (4). The fourth oil cylinder (704) is used to drive the rotary swing oil cylinder (4) to swing horizontally.

4. A rock drilling boom for facilitating the drilling of a core hole according to claim 3, characterized in that: A second protective member (301) is further arranged on the front translation seat (3). The second protective member (301) and the front translation seat (3) are of an integral structure. The fourth oil cylinder (704) is arranged inside the second protective member (301) and is located on the side of the curved arm (2).

5. A rock drilling boom for facilitating the drilling of a core hole according to claim 1, characterized in that: A fifth oil cylinder (705) is arranged on the swing arm (5). The cylinder block of the fifth oil cylinder (705) is horizontally hinged to the base (601) of the propulsion mechanism (6), and the piston rod of the fifth oil cylinder (705) is horizontally hinged to the swing arm (5). The fifth oil cylinder (705) is used to drive the propulsion mechanism (6) to swing vertically.

6. A rock drilling boom for facilitating the drilling of a core hole according to claim 1, characterized in that: A lifting ring (501) is further arranged on the swing arm (5). The lifting ring (501) is arranged at one end of the swing arm (5) close to the rotary swing oil cylinder (4).

7. A rock drilling boom for facilitating the drilling of a core hole according to claim 1, characterized in that: Reinforcing ribs (502) are arranged in the length direction of the swing arm (5).

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