Accurate positioning automatic rock drill for blasting

Abstract

The utility model discloses an accurate positioning automatic rock drill for blasting, which belongs to the technical field of blasting rock drills, and comprises a rolling moving frame arranged on the ground and a support rack mounted on the moving frame, a guide sliding table is mounted on the support rack in a sliding manner, and the guide sliding table is provided with a guide sliding groove. A driver is fixedly installed on the guide sliding table, and the output end of the driver is connected with a rock drilling rod. A lead screw is rotationally connected to the supporting rack, an internal thread supporting rod is installed on the lead screw in a threaded mode, and the internal thread supporting rod is fixedly connected to the guiding sliding table. A buffering mechanism for buffering drilling polarization force is arranged on the guide sliding table; in the construction process of the rock drilling rod, the buffer mechanism can effectively buffer polarization force generated during construction, and stability and accuracy of rock drilling construction are kept.

Description

Technical Field

[0001] This utility model relates to the field of blasting rock drilling technology, specifically a precision positioning automatic rock drilling machine for blasting. Background Technology

[0002] Rock drills provide blast holes for blasting operations to place explosives for blasting. Based on the power source, they can be divided into pneumatic rock drills, internal combustion rock drills, hydraulic rock drills, down-the-hole drills, and handheld rock drills. Among them, handheld rock drills are lightweight and flexible, and are suitable for shallow hole blasting and small projects. To facilitate rock drilling operations, rock drills are usually equipped with a movable frame to save manpower.

[0003] For example, patent CN219061535U discloses a rock drill for blasting holes, including a head body and a body. The head body is equipped with a front shell, a chisel rod, and a piston rod. The chisel rod is connected to one end of the piston rod via a coupling. The piston rod is sealed inside the front shell. A washer is inserted into the inner side of the other end of the front shell. The washer has a through hole structure in the middle that matches the boss at the end of the piston rod. The washer installed on the inner wall of the front shell is used to separate the air chambers at both ends of the piston rod, which facilitates the operation of the rock drill. A lead screw with a washer is installed at the middle of the rear end of the body for docking with the washer. Rotating the lead screw moves the washer. The size of the internal chambers of the machine body and front shell can be changed by adjusting the position of the moving adjustment. By adjusting the size of the internal space of the chamber, the working range of the rock drill can be adjusted, thereby improving the working efficiency of the rock drill and adapting to drilling in different rock masses. During the construction process of the rock drill in contact with the blasting surface, the reaction force generated by the rock drill varies depending on the hardness of the blasting surface. When the rock drill is subjected to a large reaction force, polarization will occur, resulting in inaccurate drilling position. In addition, some existing rock drills are not convenient to quickly and flexibly adjust their corresponding construction direction according to the position of the blasting hole during construction, and the adjustment flexibility is limited.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing blasting rock drill. Summary of the Invention

[0005] The purpose of this invention is to provide a precise positioning automatic rock drill for blasting, in order to solve the problem mentioned in the background art that, during the construction process of the rock drill in contact with the blasting surface, the magnitude of the reaction force generated on the rock drill varies depending on the hardness of the blasting surface. When the rock drill is subjected to a large reaction force, polarization will occur, resulting in inaccurate drilling position.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision positioning automatic rock drill for blasting, comprising a mobile frame that rolls on the ground and a support frame mounted on the mobile frame. A guide slide is slidably mounted on the support frame, and a driver is fixedly mounted on the guide slide. The output end of the driver is connected to a rock drill rod. A lead screw is rotatably connected to the support frame, and an internally threaded support rod is threaded onto the lead screw. The internally threaded support rod is fixedly connected to the guide slide. A buffer mechanism for buffering drilling polarization force is provided on the guide slide.

[0007] Preferably, the buffer mechanism includes a steering rod rotatably mounted on a guide slide, a buffer pressure rod telescopically connected to the steering rod, and a buffer spring elastically connected between the buffer pressure rod and the steering rod; the buffer pressure rod is correspondingly pressed against the support frame.

[0008] Preferably, the guide slide has a through groove, and the buffer pressure rods are distributed through the through groove; the support frame has a buffer groove, and the buffer pressure rods rotate and press against the buffer groove.

[0009] Preferably, a ball bearing is rotatably mounted on the lower end face of the buffer rod, and the ball bearing rolls against the inner wall of the buffer groove.

[0010] Preferably, a cylinder is fixedly installed on the guide slide, and a lifting frame is fixedly connected to the output end of the cylinder. A slip ring is rotatably installed on the lifting frame; the slip ring is slidably sleeved on the outside of the buffer pressure rod.

[0011] Preferably, the support frame is rotatably mounted on a mobile frame, and the mobile frame is equipped with a steering mechanism for adjusting the rock drilling direction of the support frame.

[0012] Preferably, the steering mechanism includes an upper mounting frame fixed on a support frame and a lower mounting frame fixed on a mobile frame; a rotating cylinder is rotatably mounted on both the upper and lower mounting frames, and an electric telescopic rod is installed between the two rotating cylinders.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the precision positioning automatic rock drill for blasting has a driver and a rock drill rod installed on a guide slide. During construction, the running motor controls the rotation of the lead screw, and under the threaded transmission, it can control the driver and the rock drill rod to move autonomously in a directional manner, thereby realizing automated rock drilling.

[0014] Furthermore, the guide slide is equipped with a buffer mechanism to buffer the drilling polarization force. Depending on the hardness of the blasting surface, the pressure of the buffer rod pressing against the buffer groove is controlled. The ball bearings below the buffer rod roll in the buffer groove, keeping the guide slide able to move in a directional manner. At the same time, it buffers the polarization force during rock drilling, improving the accuracy of the rock drilling position.

[0015] The operating cylinder controls the longitudinal movement of the lifting frame, which in turn drives the slip ring to move up and down synchronously. The slip ring is sleeved on the outside of the buffer rod and drives it to rotate. The greater the pressure of the buffer rod rotating downward and pressing it into the buffer groove, the greater the polarization effect of the buffer guide slide, thus ensuring that the guide slide can move stably.

[0016] Furthermore, the mobile frame is equipped with a steering mechanism to adjust the drilling direction of the support platform. The angle of the support platform installed on the mobile frame is adjusted according to the position of the blasting hole to be constructed on the rock drill rod, thereby adjusting the construction angle of the rock drill rod.

[0017] The electric telescopic rod adjusts the distance between the upper and lower mounting brackets. The electric telescopic rod is diagonally supported below the support platform, allowing for quick adjustment of its angle when mounted on the mobile frame. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the mobile vehicle frame of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the driver of this utility model.

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the support frame of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the guide slide of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the buffer pressure bar of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the electric telescopic pole of this utility model.

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the rotating cylinder of this utility model.

[0025] In the diagram: 1. Mobile frame; 2. Support frame; 3. Guide slide; 4. Driver; 5. Rock drill rod; 6. Lead screw; 7. Internal threaded support rod; 8. Steering rod; 9. Buffer rod; 10. Buffer spring; 11. Through slot; 12. Buffer slot; 13. Cylinder; 14. Lifting frame; 15. Slip ring; 16. Upper mounting frame; 17. Lower mounting frame; 18. Rotary drum; 19. Electric telescopic rod; 20. Ball bearing. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figures 1-7 The present invention provides the following technical solution: a precision positioning automatic rock drill for blasting, comprising a mobile frame 1 that rolls on the ground and a support frame 2 mounted on the mobile frame 1, a guide slide 3 slidably mounted on the support frame 2, a driver 4 fixedly mounted on the guide slide 3, and a rock drill rod 5 connected to the output end of the driver 4; a lead screw 6 rotatably connected to the support frame 2, an internally threaded support rod 7 threaded onto the lead screw 6, and the internally threaded support rod 7 fixedly connected to the guide slide 3; and a buffer mechanism for buffering drilling polarization force is provided on the guide slide 3.

[0028] The buffer mechanism includes a steering rod 8 rotatably mounted on the guide slide 3, a buffer pressure rod 9 telescopically connected to the steering rod 8, and a buffer spring 10 elastically connected between the buffer pressure rod 9 and the steering rod 8; the buffer pressure rod 9 is correspondingly pressed onto the support frame 2.

[0029] The guide slide 3 has a through groove 11, and the buffer pressure rod 9 is distributed through the through groove 11; the support frame 2 has a buffer groove 12, and the buffer pressure rod 9 rotates and presses against the buffer groove 12.

[0030] A ball bearing 20 is rotatably mounted on the lower end face of the buffer rod 9, and the ball bearing 20 rolls against the inner wall of the buffer groove 12.

[0031] A cylinder 13 is fixedly installed on the guide slide 3. A lifting frame 14 is fixedly connected to the output end of the cylinder 13. A slip ring 15 is rotatably installed on the lifting frame 14. The slip ring 15 is slidably sleeved on the outside of the buffer pressure rod 9.

[0032] The device is moved on the blasting ground by a mobile frame 1. Depending on the height of the blasting hole, the mobile frame 1 can be mounted on a construction hoist for use. The rock drill rod 5 is aligned with the blasting hole, and the rock drill rod 5 is powered by the driver 4. At the same time, the motor controls the rotation of the lead screw 6. The lead screw 6 is threadedly connected to the internal thread support rod 7. Under the threaded transmission, the internal thread support rod 7 and the guide slide 3 are controlled to move directionally on the support frame 2 to quickly open the blasting hole.

[0033] The higher the hardness of the blasting surface, the easier it is for the rock drill rod 5 to be polarized during construction. During construction, the operating cylinder 13 drives the lifting frame 14 to move up and down. The lifting frame 14 controls the sliding ring 15 installed on the side to move up and down synchronously. The sliding ring 15 is fitted on the outside of the buffer pressure rod 9 and slides accordingly, controlling the rotation of the buffer pressure rod 9 and the steering rod 8. The buffer pressure rod 9 rotates downward and presses into the buffer groove 12 on the support frame 2. The greater the pressure of the buffer pressure rod 9, the greater the buffering effect formed by the buffer spring 10 and the steering rod 8. The resistance to the movement of the guide slide 3 is also relatively increased, so that the guide slide 3 can slowly and stably control the movement of the rock drill rod 5 for construction, and maintain the stability and accuracy of opening the blasting hole.

[0034] Example 2: Based on Example 1, a steering mechanism is also disclosed, the specific structure of which is as follows: The support frame 2 is rotatably mounted on the mobile frame 1, and the mobile frame 1 is provided with a steering mechanism for adjusting the drilling direction of the support frame 2. The steering mechanism includes an upper mounting frame 16 fixed on the support frame 2 and a lower mounting frame 17 fixed on the mobile frame 1; a rotating cylinder 18 is rotatably mounted on both the upper mounting frame 16 and the lower mounting frame 17, and an electric telescopic rod 19 is installed between the two rotating cylinders 18.

[0035] The drilling angle of the rock drill rod 5 can be adjusted according to the location and angle of the blasting hole. The electric telescopic rod 19 can be used to control the angle between the upper mounting frame 16 and the lower mounting frame 17. At this time, the rotating drum 18 is mounted on the upper mounting frame 16 and the lower mounting frame 17 and rotates. The two electric telescopic rods 19 are tilted and supported below the support frame 2. They can stably control the rotation of the support frame 2 mounted on the mobile frame 1 and quickly adjust the drilling angle of the rock drill rod 5. The adjustment method is highly flexible.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precision positioning automatic rock drill for blasting, comprising a mobile frame (1) erected on the ground and rolling, and a support frame (2) installed on the mobile frame (1), characterized in that: The support rack (2) is slidably installed with a guide sliding table (3), the guide sliding table (3) is fixedly installed with a driver (4), and the driver (4) is connected with a rock drilling rod (5); The support rack (2) is rotatably connected with a screw rod (6), the screw rod (6) is threadedly installed with an internally-threaded support rod (7), and the internally-threaded support rod (7) is fixedly connected to the guide sliding table (3); The guide sliding table (3) is provided with a buffer mechanism for buffering drilling polarization force.

2. A precision positioning automatic rock drill for blasting according to claim 1, characterized in that: The buffer mechanism comprises a steering rod (8) rotatably installed on the guide sliding table (3), and a buffer pressing rod (9) telescopically connected to the steering rod (8), and a buffer spring (10) elastically connected between the buffer pressing rod (9) and the steering rod (8). The buffer pressing rod (9) is correspondingly pressed on the support rack (2).

3. A precision positioning automatic rock drill for blasting according to claim 2, characterized in that: The guide sliding table (3) is provided with a through groove (11), and the buffer pressing rod (9) is distributed in the through groove (11); The support rack (2) is provided with a buffer groove (12), and the buffer pressing rod (9) is rotatably pressed in the buffer groove (12).

4. A precision positioning automatic rock drill for blasting according to claim 3, characterized in that: The lower end surface of the buffer pressing rod (9) is rotatably installed with a ball (20), and the ball (20) is rolled on the inner wall of the buffer groove (12).

5. A precision positioning automatic rock drill for blasting according to claim 4, characterized in that: The guide sliding table (3) is fixedly installed with a gas cylinder (13), the output end of the gas cylinder (13) is fixedly connected with a lifting frame (14), and the lifting frame (14) is rotatably installed with a sliding ring (15); The sliding ring (15) is slidably sleeved on the outside of the buffer pressing rod (9).

6. A precision positioning automatic rock drill for blasting according to claim 1, characterized in that: The support rack (2) is rotatably installed on the moving frame (1), and the moving frame (1) is provided with a steering mechanism for controlling the rock drilling direction of the support rack (2).

7. A precision positioning automatic rock drill for blasting according to claim 6, characterized in that: The steering mechanism comprises an upper mounting frame (16) fixed to the support rack (2) and a lower mounting frame (17) fixedly installed on the moving frame (1); The upper mounting frame (16) and the lower mounting frame (17) are both rotatably installed with a rotating cylinder (18), and an electric telescopic rod (19) is installed between the two rotating cylinders (18).

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