Down-the-hole drill with positioning function

Abstract

The utility model relates to the technical field of mining devices, in particular to a down-the-hole drill with a positioning function, which comprises a base, the left side of the base is fixedly connected with a connecting block, the right side of the top of the base is fixedly connected with the bottom end of a support rod, and the top end of the support rod is provided with a lifting component. The three positioning rods distributed at the bottom in an equiangular mode are driven to ascend and descend through the positioning assembly, so that the positioning rods make contact with the ground, a user can conveniently confirm and position the drilling position, and compared with a traditional mode that a distance is reserved between a drill bit and the ground, and positioning completely depends on visual inspection, more accuracy is achieved; the gear motor is started to drive the main bevel gear and the rotating sleeve to rotate, the main bevel gear drives the auxiliary bevel gear to rotate, the auxiliary bevel gear rotates to drive the cam to continuously extrude the drilling barrel, the drilling barrel is made to move up and down, the structure is beneficial to smashing hard objects when the hard objects are encountered, and the probability that the drilling barrel is damaged is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mining devices, in particular to a down-the-hole drill with a positioning function. Background Art

[0002] At present, in mining and excavation engineering operations, it is necessary to use down-the-hole drills to drill holes at the construction site. The essence of down-the-hole rock drilling is to make the impactor dive into the hole during the rock drilling process to reduce the energy loss caused by the impact work transmitted by the drill rod, thereby reducing the influence of the hole depth on the rock drilling efficiency. The working principle of the down-the-hole drill is in line with the essence of down-the-hole rock drilling to a great extent.

[0003] The existing technology has the following problems: 1. There is a certain height difference between the drill barrel of the existing down-the-hole drill and the ground, so there will be deviations when drilling, and it is difficult to accurately locate the position of the drill hole by visual inspection; 2. When the existing down-the-hole drill encounters larger stones during the drilling process, forced drilling can easily cause damage to the drill rod. Utility Model Content

[0004] The purpose of the utility model is to provide a down-the-hole drill with a positioning function to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: a down-the-hole drill with a positioning function, comprising a base, a connecting block is fixedly connected to the left side of the base, the right side of the top of the base is fixedly connected to the bottom end of the support rod, and a lifting assembly is provided at the top of the support rod, a drilling assembly is fixedly connected to one side of the lifting assembly, and a positioning assembly is provided on the outside of the drilling assembly.

[0005] Further preferably, the lifting assembly includes a fixed sleeve fixedly connected to the top end of the support rod, the top of the fixed sleeve is connected to the bottom ends of four connecting rods, and the top ends of the four connecting rods are connected through a top plate.

[0006] Further preferably, a cylinder is fixedly connected to the middle of the bottom surface of the top plate, a lifting block is fixedly connected to the output end of the cylinder, the lifting block is slidably connected to the middle of the slide groove, and the slide groove is opened on one side of the fixed sleeve.

[0007] Further preferably, the drilling assembly includes a reduction motor fixedly connected to one side of the lifting block, the output end of the reduction motor is fixedly connected to a main bevel gear, and the bottom surface of the main bevel gear is fixedly connected to a rotating sleeve.

[0008] Further preferably, the interior of the rotating sleeve is slidably connected to a drill barrel, a cam is attached to the top of the drill barrel, one side of the cam is connected to a secondary bevel gear through a connecting shaft, the secondary bevel gear is rotatably connected to the middle part of the inner wall of the protective shell, and the main bevel gear and the secondary bevel gear are meshed.

[0009] Further preferably, the top of the drill tube is connected to the bottom end of the spring, and the top end of the spring is fixedly connected to the bottom surface of the main bevel gear, and an elastic structure is formed between the drill tube and the main bevel gear through the spring.

[0010] Further preferably, the positioning assembly includes an adjusting screw connected to one side of the top surface of the protective shell, the bottom end of the adjusting screw passes through the middle of the lifting plate, one side of the lifting plate is connected to the outer side of the lifting ring, and three positioning rods are fixedly connected to the bottom surface of the lifting ring.

[0011] Further preferably, the lifting ring is sleeved on the outside of the rotating sleeve, and the lifting ring and the rotating sleeve are not in contact with each other, and the three positioning rods are equiangularly distributed on the bottom surface of the lifting ring.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, the three equiangularly distributed positioning rods at the bottom are driven to rise and fall through the positioning assembly so that the positioning rods are in contact with the ground, thereby facilitating the user to confirm and locate the drilling position. Compared with the traditional method of leaving a distance between the drill bit and the ground, the positioning method that relies entirely on visual measurement is more accurate.

[0014] In the utility model, the main bevel gear and the rotating sleeve are driven to rotate by starting the reduction motor, and the main bevel gear drives the secondary bevel gear to rotate. When the secondary bevel gear rotates, it drives the cam to continuously squeeze the drill barrel, so that the drill barrel moves up and down. This structure is conducive to crushing hard objects when encountering them, reducing the probability of damage to the drill barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the auxiliary bevel gear of the utility model;

[0017] Figure 3 It is a partial front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of a partial side cross-sectional structure of the utility model;

[0019] Figure 5 For this utility model Figure 4 A in the figure is an enlarged structural diagram.

[0020] In the figure: 1. base; 2. connecting block; 3. support rod; 4. lifting assembly; 401. fixed sleeve; 402. connecting rod; 403. top plate; 404. cylinder; 405. lifting block; 406. slide; 5. drilling assembly; 501. reduction motor; 502. main bevel gear; 503. spring; 504. rotating sleeve; 505. protective shell; 506. secondary bevel gear; 507. drill tube; 508. cam; 6. positioning assembly; 601. adjusting screw; 602. lifting plate; 603. lifting ring; 604. positioning rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a down-the-hole drill with a positioning function, comprising a base 1, a connecting block 2 is fixedly connected to the left side of the base 1, the top right side of the base 1 is fixedly connected to the bottom end of a support rod 3, and a lifting component 4 is provided at the top of the support rod 3, a drilling component 5 is fixedly connected to one side of the lifting component 4, and a positioning component 6 is provided on the outside of the drilling component 5.

[0023] In this embodiment, Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the lifting assembly 4 includes a fixed sleeve 401 fixedly connected to the top of the support rod 3, the top of the fixed sleeve 401 is connected to the bottom ends of four connecting rods 402, the top ends of the four connecting rods 402 are connected through a top plate 403, a cylinder 404 is fixedly connected to the middle of the bottom surface of the top plate 403, and a lifting block 405 is fixedly connected to the output end of the cylinder 404, and the lifting block 405 is slidably connected to the middle of the slide groove 406, and the slide groove 406 is opened in the fixed sleeve 4 01, the drilling assembly 5 includes a reduction motor 501 fixedly connected to one side of the lifting block 405, the output end of the reduction motor 501 is fixedly connected to the main bevel gear 502, the bottom surface of the main bevel gear 502 is fixedly connected to the rotating sleeve 504, the inside of the rotating sleeve 504 is slidably connected to the drill tube 507, the top of the drill tube 507 is attached to the cam 508, one side of the cam 508 is connected to the auxiliary bevel gear 506 through a connecting shaft, and the auxiliary bevel gear 506 is rotatably connected to the main bevel gear 502. In the middle of the inner wall of the protective shell 505, the main bevel gear 502 is meshed with the secondary bevel gear 506, the top of the drill barrel 507 is connected to the bottom end of the spring 503, and the top of the spring 503 is fixedly connected to the bottom surface of the main bevel gear 502, and the drill barrel 507 and the main bevel gear 502 form an elastic structure through the spring 503; the lifting block 405 at the bottom is driven to rise and fall by the extension and contraction of the cylinder 404, thereby driving the drilling assembly 5 connected to the lifting block 405 to rise and fall, and when the drill barrel 507 is lowered with the lifting assembly 4 to contact the ground, the reduction motor 501 is started to drive the main bevel gear 502 and the rotating sleeve 504 to rotate, and the main bevel gear 502 drives the secondary bevel gear 506 to rotate, and when the secondary bevel gear 506 rotates, it will drive the cam 508 to continuously squeeze the drill barrel 507, so that the drill barrel 507 moves up and down, and this structure is conducive to crushing hard objects when encountering them, thereby reducing the probability of damage to the drill barrel 507.

[0024] In this embodiment, Figure 1 , Figure 2 and Figure 3As shown, the positioning assembly 6 includes an adjusting screw 601 connected to one side of the top surface of the protective shell 505, the bottom end of the adjusting screw 601 passes through the middle of the lifting plate 602, one side of the lifting plate 602 is connected to the outer side of the lifting ring 603, and the bottom surface of the lifting ring 603 is fixedly connected with three positioning rods 604, the lifting ring 603 is sleeved on the outer side of the rotating sleeve 504, and the lifting ring 603 and the rotating sleeve 504 are not in contact, and the three positioning rods 604 are equiangularly distributed on the bottom surface of the lifting ring 603; by turning the adjusting screw The rod 601 drives the lifting plate 602 to rise and fall. At this time, the lifting plate 602 will be limited by the rotating sleeve 504 under the action of the lifting ring 603, preventing the lifting plate 602 and the lifting ring 603 from rotating with the adjusting screw 601. When the lifting ring 603 is lifted or lowered, it will drive the three equiangularly distributed positioning rods 604 at the bottom to rise and fall, so that the positioning rods 604 are in contact with the ground, thereby facilitating the user to confirm and locate the drilling position. Compared with the traditional method of leaving a distance between the traditional drill bit and the ground, the positioning method that relies entirely on visual measurement is more accurate.

[0025] The use method and advantages of the utility model: When the down-the-hole drill with positioning function is used, the working process is as follows:

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, firstly, the lifting block 405 at the bottom is lifted and lowered by the extension and contraction of the cylinder 404, thereby driving the drilling assembly 5 connected to the lifting block 405 to lift and lower. When the drill tube 507 is lowered with the lifting assembly 4 to contact the ground, the reduction motor 501 is started to drive the main bevel gear 502 and the rotating sleeve 504 to rotate. The main bevel gear 502 drives the secondary bevel gear 506 to rotate. When the secondary bevel gear 506 rotates, it drives the cam 508 to continuously squeeze the drill tube 507, so that the drill tube 507 moves up and down. This structure is conducive to crushing hard objects when encountering them. The probability of damage to the drill tube 507 is reduced. The lifting plate 602 is driven to rise and fall by twisting the adjusting screw 601. At this time, the lifting plate 602 will be limited by the rotating sleeve 504 under the action of the lifting ring 603 to prevent the lifting plate 602 and the lifting ring 603 from rotating together with the adjusting screw 601. When the lifting ring 603 is lifted or lowered, it will drive the three equiangularly distributed positioning rods 604 at the bottom to rise and fall, so that the positioning rods 604 are in contact with the ground, thereby facilitating the user to confirm and locate the drilling position. Compared with the traditional method of leaving a distance between the drill bit and the ground, the positioning method that relies entirely on visual measurement is more accurate.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A down-the-hole drilling rig with a positioning function, comprising a base (1), characterized in that: A connecting block (2) is fixedly connected to the left side of the base (1), the right side of the top of the base (1) is fixedly connected to the bottom end of the support rod (3), and a lifting assembly (4) is provided at the top end of the support rod (3), a drilling assembly (5) is fixedly connected to one side of the lifting assembly (4), and a positioning assembly (6) is provided on the outer side of the drilling assembly (5).

2. A down-the-hole drill with positioning function according to claim 1, characterized in that: The lifting assembly (4) comprises a fixed sleeve (401) fixedly connected to the top end of the support rod (3), the top of the fixed sleeve (401) is connected to the bottom ends of four connecting rods (402), and the top ends of the four connecting rods (402) are connected via a top plate (403).

3. A down-the-hole drill with positioning function according to claim 2, characterized in that: A cylinder (404) is fixedly connected to the middle of the bottom surface of the top plate (403), a lifting block (405) is fixedly connected to the output end of the cylinder (404), and the lifting block (405) is slidably connected to the middle of a slide groove (406), and the slide groove (406) is provided on one side of the fixed sleeve (401).

4. The down-the-hole drill with positioning function according to claim 1, characterized in that: The drilling assembly (5) comprises a reduction motor (501) fixedly connected to one side of the lifting block (405), the output end of the reduction motor (501) being fixedly connected to a main bevel gear (502), and the bottom surface of the main bevel gear (502) being fixedly connected to a rotating sleeve (504).

5. The down-the-hole drill with positioning function according to claim 4, characterized in that: The interior of the rotating sleeve (504) is slidably connected to a drill tube (507), a cam (508) is attached to the top of the drill tube (507), one side of the cam (508) is connected to a secondary bevel gear (506) via a connecting shaft, the secondary bevel gear (506) is rotatably connected to the middle of the inner wall of the protective shell (505), and the main bevel gear (502) is meshed with the secondary bevel gear (506).

6. The down-the-hole drill with positioning function according to claim 5, characterized in that: The top of the drill tube (507) is connected to the bottom end of the spring (503), and the top end of the spring (503) is fixedly connected to the bottom surface of the main bevel gear (502). An elastic structure is formed between the drill tube (507) and the main bevel gear (502) via the spring (503).

7. The down-the-hole drill with positioning function according to claim 1, characterized in that: The positioning assembly (6) comprises an adjusting screw (601) connected to one side of the top surface of the protective shell (505); the bottom end of the adjusting screw (601) passes through the middle of the lifting plate (602); one side of the lifting plate (602) is connected to the outer side of the lifting ring (603); and three positioning rods (604) are fixedly connected to the bottom surface of the lifting ring (603).

8. The down-the-hole drill with positioning function according to claim 7, characterized in that: The lifting ring (603) is sleeved on the outside of the rotating sleeve (504), and the lifting ring (603) and the rotating sleeve (504) are not in contact with each other. The three positioning rods (604) are equiangularly distributed on the bottom surface of the lifting ring (603).

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