Ground pre-grouting drilling device

Abstract

The utility model discloses a ground pre-grouting drilling device which comprises two supporting plates, a transverse plate is fixedly assembled between the two supporting plates, a supporting structure is connected with the outer side walls of the supporting plates, the supporting stability of the device is guaranteed through the supporting plates on the two sides, and a hydraulic cylinder for adjusting the longitudinal position of a drill bit is fixed through the transverse plate. Through cooperation of the hydraulic cylinder and the motor, the drill bit can be adjusted to continuously go deep into a drill hole while being driven to rotate, the motor is a servo motor, the tricone hard alloy drill bit can be conveniently adjusted to rotate forwards and backwards, and through limitation of the limiting structures on the two sides, the displacement track of the drill bit is guaranteed, so that the drill bit is kept in the fixed vertical direction; through the action of the three-cone hard alloy drill bit, sludge impurities and the like in the hole can be cleaned out after forward rotation punching and reverse rotation, use is convenient, through the action of the supporting structure, the drill bit can adapt to working positions with height differences, it is also guaranteed that the drill bit does not incline during punching in an auxiliary mode, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of grouting drilling technology, specifically to a ground pre-grouting drilling device. Background Technology

[0002] The key points of ground pre-grouting drilling construction are to ensure the straightness of the borehole, strive for uniform landing points, make full use of grouting process and technology to improve the grouting effect, and ensure that the drilling machine is not installed stably, which will cause the borehole to deviate. If the base of the drilling machine is not leveled, tilting force will be generated during drilling, causing the borehole to deviate from the predetermined direction. Existing equipment requires auxiliary pads to adjust the stability of the drilling machine as much as possible, which has poor practicality. Utility Model Content

[0003] The purpose of this invention is to provide a ground pre-grouting drilling device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a ground pre-grouting drilling device, comprising two support plates, a horizontal plate fixedly assembled between the two support plates, the horizontal plate being located on the upper side of the two support plates, a hydraulic cylinder fixedly assembled on the inner wall of the horizontal plate, a motor fixedly assembled at the lower end of the piston rod of the hydraulic cylinder, both sides of the motor being connected to the two support plates through limiting structures, a plurality of drill rods fixedly assembled at the lower end of the motor, adjacent drill rods being threadedly connected, a tri-cone carbide drill bit being screwed onto the inner wall of the lowest drill rod, and a support structure being inserted into the lower end of the inner wall of both support plates, and the support structure being connected to the outer wall of the support plate.

[0005] Preferably, the limiting structure includes a slide rod, which is fixedly mounted on the side wall of the motor. The inner side wall of the support plate is provided with a sliding groove, and the slide rod is inserted into the sliding groove, and the slide rod is slidably connected to the sliding groove.

[0006] Preferably, the support structure includes a nut, which is fixedly assembled to the outer side wall of the support plate. A screw is screwed to the inner wall of the nut. The lower end of the screw is connected to a vertical plate through a connecting plate. The screw and the connecting plate are rotatably connected. The vertical plate is attached to the outer side wall of the support plate. A support foot is fixedly assembled to the lower end of the vertical plate. A limit plate is fixedly assembled to the surface of the support foot. The limit plate is inserted into the inner wall of the support plate.

[0007] Preferably, the outer wall of the hydraulic cylinder is fixedly fitted with a protective sleeve, and the protective sleeve is fixedly fitted to the surface of the horizontal plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: the support plates on both sides ensure the stability of the equipment; the horizontal plate is used to fix the hydraulic cylinder that adjusts the longitudinal position of the drill bit; the cooperation between the hydraulic cylinder and the motor allows the drill bit to be continuously adjusted to penetrate deeper into the hole while driving it to rotate; the motor is a servo motor, which facilitates the adjustment of the tri-cone carbide drill bit to rotate in both directions; the limiting structure on both sides ensures the displacement trajectory of the drill bit, keeping it in a fixed vertical direction, thus ensuring that the hole will not tilt during drilling, making it convenient to use; the supporting structure can adapt to working positions with height differences, which also helps to ensure that the drill bit does not tilt during drilling, making it highly practical. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0010] Figure 2 This is a front view of the present invention;

[0011] Figure 3 A three-dimensional schematic diagram of the supporting structure.

[0012] In the diagram: 1-Support plate, 2-Horizontal plate, 3-Hydraulic cylinder, 4-Motor, 5-Limiting structure, 51-Slide rod, 52-Slide groove, 6-Tri-cone carbide drill bit, 7-Supporting structure, 71-Nut, 72-Screw, 73-Connecting plate, 74-Vertical plate, 75-Support foot, 76-Limiting plate, 8-Casing, 9-Drill rod. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-3 This utility model provides a ground pre-grouting drilling device, including two support plates 1, with a horizontal plate 2 fixedly assembled between the two support plates 1. The horizontal plate 2 is located on the upper side of the two support plates 1. A hydraulic cylinder 3 is fixedly assembled on the inner wall of the horizontal plate 2. A motor 4 is fixedly assembled on the lower end of the piston rod of the hydraulic cylinder 3. Both sides of the motor 4 are connected to the two support plates 1 through limiting structures 5. Multiple drill rods 9 are fixedly assembled on the lower end of the motor 4. Adjacent drill rods 9 are threadedly connected. A tri-cone carbide drill bit 6 is screwed to the inner wall of the lowest drill rod 9. A support structure 7 is inserted into the lower end of the inner wall of each of the two support plates 1, and the support structure 7 is connected to the outer wall of the support plate 1.

[0015] The equipment's stability is ensured by the two side support plates 1. The horizontal plate 2 is used to fix the hydraulic cylinder 3 that adjusts the longitudinal position of the drill bit. Through the cooperation of the hydraulic cylinder 3 and the motor 4, the drill bit can be driven to rotate while being adjusted to continuously penetrate deeper into the hole. The motor 4 is a servo motor, which facilitates the forward and reverse rotation of the tri-cone carbide drill bit 6. The limiting structure 5 on both sides ensures the displacement trajectory of the drill bit, keeping it in a fixed vertical direction, thus ensuring that the hole will not tilt during drilling. It is easy to use. The support structure 7 can adapt to working positions with height differences, which also helps to ensure that the drill bit does not tilt during drilling, making it highly practical.

[0016] The limiting structure 5 includes a slide rod 51, which is fixedly mounted on the side wall of the motor 4. The inner side wall of the support plate 1 is provided with a slide groove 52, and the slide rod 51 is inserted into the slide groove 52, and the slide rod 51 is slidably connected to the slide groove 52.

[0017] When the motor 4 makes a vertical displacement, it will drive the slide rods 51 on both sides to maintain a vertical fixed trajectory displacement in the slide groove 52, thereby limiting the displacement trajectory of the tri-cone carbide drill bit 6 and keeping it vertical and fixed.

[0018] The support structure 7 includes a nut 71, which is fixedly mounted on the outer wall of the support plate 1. A screw 72 is screwed onto the inner wall of the nut 71. The lower end of the screw 72 is connected to a vertical plate 74 through a connecting plate 73. The screw 72 and the connecting plate 73 are rotatably connected. The vertical plate 74 is attached to the outer wall of the support plate 1. A support leg 75 is fixedly mounted on the lower end of the vertical plate 74. A limiting plate 76 is fixedly mounted on the surface of the support leg 75. The limiting plate 76 is inserted into the inner wall of the support plate 1.

[0019] When there is a difference in height in the working position, adjust the screw 72 on the lower side and rotate the screw 72 to make it move downward on the inner wall of the nut 71. Adjust its downward movement, and the connecting plate 73 will drive the vertical plate 74 to move downward. At this time, the vertical plate 74 will drive the support leg 75 to move downward to provide effective support, so that the position of the drill bit remains vertical. During the movement, the limiting plate 76 will restrict the support leg 75 to maintain a fixed trajectory.

[0020] The outer wall of the hydraulic cylinder 3 is fixedly fitted with a protective sleeve 8, which is fixedly fitted to the surface of the horizontal plate 2.

[0021] The sleeve 8 serves to protect the hydraulic cylinder 3.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ground pre-grouting drilling device, characterized in that: It includes two support plates (1), and a cross plate (2) is fixedly assembled between the two support plates (1). The cross plate (2) is located on the upper side of the two support plates (1). A hydraulic cylinder (3) is fixedly assembled on the inner wall of the cross plate (2). A motor (4) is fixedly assembled at the lower end of the piston rod of the hydraulic cylinder (3). Both sides of the motor (4) are connected to the two support plates (1) through a limiting structure (5). Multiple drill rods (9) are fixedly assembled at the lower end of the motor (4). Two adjacent drill rods (9) are threaded together. A tri-tooth carbide drill bit (6) is screwed onto the inner wall of the lowest drill rod (9). A support structure (7) is inserted into the lower end of the inner wall of the two support plates (1), and the support structure (7) is connected to the outer wall of the support plate (1). The support structure (7) includes a nut (71), which is fixedly assembled on the outer side wall of the support plate (1). A screw (72) is screwed onto the inner wall of the nut (71). The lower end of the screw (72) is connected to a vertical plate (74) through a connecting plate (73). The screw (72) and the connecting plate (73) are rotatably connected. The vertical plate (74) is attached to the outer side wall of the support plate (1). A support foot (75) is fixedly assembled at the lower end of the vertical plate (74). A limiting plate (76) is fixedly assembled on the surface of the support foot (75). The limiting plate (76) is inserted into the inner wall of the support plate (1).

2. The ground pre-grouting drilling device according to claim 1, characterized in that: The limiting structure (5) includes a slide rod (51), which is fixedly mounted on the side wall of the motor (4). The inner side wall of the support plate (1) is provided with a slide groove (52), and the slide rod (51) is inserted into the slide groove (52). The slide rod (51) and the slide groove (52) are slidably connected.

3. The ground pre-grouting drilling device according to claim 1, characterized in that: The outer wall of the hydraulic cylinder (3) is fixedly fitted with a protective sleeve (8), which is fixedly fitted to the surface of the horizontal plate (2).

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