Special elevator for vertical hole tripping of core drill

Abstract

The utility model relates to the technical field of well drilling equipment, in particular to a special elevator for vertical hole tripping of a conventional core drilling machine. An elevator auxiliary device is arranged on the vertical shaft drill rod in a sleeving manner; the end part of the vertical shaft drill rod is connected with a special elevator; a lifting ring is arranged at the top of the special elevator; the lifting ring is of a U-shaped structure and is arranged at the top of the special elevator; a fixing nut is arranged at the lower part of the lifting ring; connecting sleeves are arranged at the lower parts of the fixing nuts; the connecting sleeve is transversely arranged at the top of the special elevator; the lower part of the special elevator is of a cylindrical structure; a lifting cylinder is arranged at the lower part of the special elevator; a cavity is embedded in the lifting cylinder; the problems that when a traditional elevator is used in drilling construction, a constructor must climb to the top of a drilling machine to take down a drill rod every time, the construction risk is increased, and the construction efficiency is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a special lifting device used for vertical hole drilling of a core drilling rig. Background Art

[0002] In the construction of engineering geological drilling, a simple lifting device is widely used. It consists of a lifting device and a hoop and other main parts. This lifting device has a simple structure and is easy to use, but it cannot be automatically separated from the drilling tool tower. In construction, since the wire rope, drill rod and drilling tool are lifted from the air (or the ground) and then placed on the ground or in the borehole, the hanging and separation are completed on the ground. However, when lifting the active drill rod, the lifting device must be manually disconnected from the faucet top hanging on the active drill rod after going up the tower. Every time a drill is drilled, the active drill rod must be lifted once, and the worker must go up the drilling tower once. Usually, a shift must go up the drilling tower at least dozens of times. In the field of engineering survey and drilling, the lifting device is an important tool in the drilling equipment and is a very important key component for lifting and hanging drill rods and drilling tools. Its upper end is connected to the main winch wire rope of the drilling rig, and the lower end is connected to the drill rod. As the main winch wire rope is retracted and released, the drill rod and drill bit are driven to be lifted and lowered. At present, the lifting devices used on the market can fully meet the needs of lifting and drilling downward and horizontal holes, but someone must be on the tower to pick it up and hang it. People usually use a movable workbench or ladder to go up and down the drilling tower. A movable workbench is mostly used for deep holes, and a ladder is mostly used for shallow holes. Climbing up and down the ladder is an aerial operation, and safety belts must be worn. In actual work, some people have a weak sense of safety, and it is common for them to go up and down the ladder without wearing safety belts. How to process a tool that allows people to lift and lower the drill on the ground while ensuring safety, reliability and easy operation has become a technical problem that must be overcome. Refer to CN202321697859.3 A lifter for an integrated drill pipe. Utility Model Content

[0003] The utility model aims to provide a special lifting device for vertical hole drilling of core drilling rigs, so as to solve the problem that construction workers must climb to the top of the drilling rig every time to remove the drill rod when using traditional lifting devices in drilling construction, which increases construction risks and affects construction efficiency.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A special lifter for drilling in a vertical hole of a core drill comprises a vertical axis drill rod, a special lifter, a lifter auxiliary device and a borehole; the vertical axis drill rod is arranged in the borehole; the lifter auxiliary device is sleeved on the vertical axis drill rod; the special lifter is connected to the end of the vertical axis drill rod; a lifting ring is arranged on the top of the special lifter; the lifting ring is a U-shaped structure arranged on the top of the special lifter; a fixing nut is arranged at the bottom of the lifting ring; a connecting sleeve is arranged at the bottom of the fixing nut; the connecting sleeve is transversely arranged on the top of the special lifter; the bottom of the special lifter is a cylinder-shaped structure; a lifting cylinder is arranged at the bottom of the special lifter; a cavity is embedded in the lifting cylinder; and a hanging ring is arranged at the bottom of the lifting cylinder.

[0006] Furthermore, the auxiliary lifter device is provided with a cylindrical structure; a handle is provided on the outside of the auxiliary lifter device; a through structure is provided inside the auxiliary lifter device; and a sleeve is provided inside the auxiliary lifter device.

[0007] Furthermore, a spring washer is provided between the fixing nut and the connecting sleeve.

[0008] Furthermore, the hanging ring is arranged in a semi-open structure; a U-shaped groove is arranged inside the hanging ring.

[0009] Furthermore, the inner wall of the cavity embedded in the lifting tube is provided with a wear-resistant coating.

[0010] Furthermore, a sleeve is provided on the inner wall surface of the sleeve; the sleeve is a high-hardness steel structure.

[0011] Compared with the prior art, the utility model can achieve one of the following beneficial effects:

[0012] 1. A vertical axis drill rod is arranged in the borehole; a lifting device auxiliary device is set on the vertical axis drill rod; a special lifting device is connected to the end of the vertical axis drill rod; a lifting ring is arranged on the top of the special lifting device; the lifting ring is a U-shaped structure arranged on the top of the special lifting device; a fixing nut is arranged at the bottom of the lifting ring; a connecting sleeve is arranged at the bottom of the fixing nut; the connecting sleeve is transversely arranged on the top of the special lifting device; the bottom of the special lifting device is a cylinder-shaped structure; a lifting cylinder is arranged at the bottom of the special lifting device; a cavity is embedded in the lifting cylinder; a hanging ring is arranged at the bottom of the lifting cylinder, so that the lifting of the drill rod can be realized by the lifting device auxiliary device set on the drill rod and the lifting device. The drilling operation is different from the traditional lifter. When in use, the cup-type auxiliary device sleeve 31 is put on the vertical axis drill pipe 1, and the drilling rig is operated to lower the lifter to a position accessible to ground personnel. The ground personnel hold the lifter 2 and connect it with the hook 32 of the cup-type auxiliary device 3, and operate the drilling rig to make the lifter 2 and the cup-type auxiliary device 3 rise together. When the cup-type auxiliary device 3 rises to the end of the vertical axis drill pipe 1, the cup-type auxiliary device 3 applies a lifting force to the end of the vertical axis drill pipe, and lifts the vertical axis drill pipe 1 and the drill pipe in the hole to realize the drilling operation, avoiding the need to climb the drilling rig to complete the drilling operation of the drill pipe, improving safety while increasing construction speed.

[0013] 2. The auxiliary device of the lifter is arranged in a cylindrical structure; a handle is arranged on the outside of the auxiliary device of the lifter; the inside of the auxiliary device of the lifter is arranged in a through structure; a sleeve is arranged inside the auxiliary device of the lifter, so that the cylindrical auxiliary device can be conveniently slid on the drill rod, and the drill rod can be disassembled and assembled in cooperation with the lifter.

[0014] 3. A spring washer is arranged between the fixing nut and the connecting sleeve, so that the spring washer can prevent the fixing nut from loosening and ensure the stable fixation of the lifting ring.

[0015] 4. The hanging ring is a semi-open structure; a U-shaped groove is provided inside the hanging ring, so that the drill rod can be conveniently inserted and fixed through the U-shaped groove of the hanging ring.

[0016] 5. The inner wall of the cavity embedded in the lifting tube is provided with a wear-resistant coating, which can improve the wear resistance of the inner wall of the cavity and increase the service life of the lifter.

[0017] 6. A sleeve is provided on the inner wall surface of the sleeve; the sleeve is a high-hardness steel structure, which can increase the friction strength of the inner wall of the sleeve and improve durability by adopting the high-hardness steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a special lifting device;

[0020] Figure 3 It is a schematic diagram of the structure of the lifter auxiliary device. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] Example 1

[0023] A special lifter for vertical hole tripping of a core drill, comprising a vertical axis drill rod 1, a special lifter 2, a lifter auxiliary device 2 and a borehole 4; the vertical axis drill rod 1 is arranged in the borehole 4; the lifter auxiliary device 3 is sleeved on the vertical axis drill rod 1; the end of the vertical axis drill rod 1 is connected with the special lifter 2; the top of the special lifter 2 is provided with a lifting ring 201; the lifting ring 201 is a U-shaped structure arranged on the top of the special lifter 2; the lower part of the lifting ring 201 is provided with a fixing nut 202; the lower part of the fixing nut 202 is provided with a connecting sleeve 204; the connecting sleeve 204 is transversely arranged on the top of the special lifter 2; the lower part of the special lifter 2 is a cylindrical structure; the lower part of the special lifter 2 is provided with a lifting cylinder 205; the lifting cylinder 205 is embedded with a cavity 206; the lifting cylinder 205 A hanging ring 207 is provided at the lower part, which can realize the drilling operation of the drill rod by cooperating with the lifter through the lifter auxiliary device inserted on the drill rod. Different from the traditional lifter, when in use, the cup-type auxiliary device sleeve 31 is put on the vertical axis drill rod 1, and the drilling rig is operated to lower the lifter to a position accessible to ground personnel. The ground personnel hold the lifter 2 and connect it with the hook 32 of the cup-type auxiliary device 3, and operate the drilling rig to make the lifter 2 and the cup-type auxiliary device 3 rise together. When the cup-type auxiliary device 3 rises to the end of the vertical axis drill rod 1, the cup-type auxiliary device 3 applies a lifting force to the end of the vertical axis drill rod, lifts the vertical axis drill rod 1 and the drill rod in the hole, and realizes the drilling operation, avoiding the need to climb the drilling rig to complete the drilling operation of the drill rod, improving safety while increasing construction speed.

[0024] Example 2

[0025] On the basis of Example 1, the lifting device auxiliary device 3 is a cylindrical structure; a handle 301 is provided on the outside of the lifting device auxiliary device 3; the inside of the lifting device auxiliary device 3 is a through structure; a sleeve 302 is provided inside the lifting device auxiliary device 3, which can realize the convenient sliding of the cylindrical auxiliary device on the drill rod, and cooperate with the lifter to realize the disassembly and assembly of the drill rod.

[0026] Example 3

[0027] On the basis of Example 1, a spring washer 203 is provided between the fixing nut 202 and the connecting sleeve 204, so that the spring washer can prevent the fixing nut from loosening and ensure the fixing and stability of the lifting ring.

[0028] Example 4

[0029] On the basis of Example 1, the hanging ring 207 is a semi-open structure; a U-shaped groove is arranged inside the hanging ring 207, so that the drill rod can be conveniently inserted and fixed through the U-shaped groove of the hanging ring.

[0030] Example 5

[0031] On the basis of Example 1, the inner wall of the cavity 206 embedded in the lifting tube 205 is provided with a wear-resistant coating, which can improve the wear resistance of the inner wall of the cavity and increase the service life of the lifter.

[0032] Example 6

[0033] On the basis of Example 1, a sleeve 303 is provided on the inner wall surface of the sleeve 302; the sleeve 303 is a high-hardness steel structure, which can increase the friction strength of the inner wall of the sleeve and improve durability by using the high-hardness steel structure.

[0034] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A special lifting device for vertical hole drilling of a core drilling rig, characterized in that: The invention comprises a special lifter (2), the special lifter (2) is connected to a vertical axis drill rod (1), the end of the vertical axis drill rod (1) is connected to the special lifter (2), and the vertical axis drill rod (1) is arranged in a borehole (4); a lifter auxiliary device (3) is sleeved on the vertical axis drill rod (1); The top of the special lifter (2) is provided with a lifting ring (201); the lifting ring (201) is a U-shaped structure provided at the top of the special lifter (2); a fixing nut (202) is provided at the bottom of the lifting ring (201); a connecting sleeve (204) is provided at the bottom of the fixing nut (202); the connecting sleeve (204) is transversely provided at the top of the special lifter (2); the bottom of the special lifter (2) is a cylinder-shaped structure; a lifting cylinder (205) is provided at the bottom of the special lifter (2); a cavity (206) is embedded in the lifting cylinder (205); a hanging ring (207) is provided at the bottom of the lifting cylinder (205); The auxiliary lifter device (3) is provided with a cylindrical structure; a handle (301) is provided on the outside of the auxiliary lifter device (3); the inside of the auxiliary lifter device (3) is provided with a through structure; and a sleeve (302) is provided on the inside of the auxiliary lifter device (3).

2. A special lifting device for vertical hole tripping of a core drilling rig according to claim 1, characterized in that: A spring washer (203) is provided between the fixing nut (202) and the connecting sleeve (204).

3. The special lifting device for vertical hole tripping of a core drilling rig according to claim 1, characterized in that: The hanging ring (207) is arranged in a semi-open structure; a U-shaped groove is arranged inside the hanging ring (207).

4. The special lifting device for vertical hole tripping of a core drilling rig according to claim 1, characterized in that: The inner wall of the cavity (206) embedded in the lifting cylinder (205) is provided with a wear-resistant coating.

5. The special lifting device for vertical hole tripping of a core drilling rig according to claim 1, characterized in that: The inner wall surface of the sleeve (302) is provided with a sleeve (303); the sleeve (303) is a high-hardness steel structure.

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