Cross-shaped reinforcing drill rod of rotary drilling rig

Abstract

The utility model relates to the technical field of engineering machinery, and discloses a cross reinforcing drill rod of a rotary drilling rig, which comprises a drill rod body, the upper end of the drill rod body is detachably connected with a drill rod mounting component, and the lower end of the drill rod body is detachably connected with a drill bit connecting component; the drill rod body comprises a cylindrical drill rod core and four sets of cross-shaped reinforcing columns, the four sets of cross-shaped reinforcing columns are integrally formed and arranged on the outer side of the cylindrical drill rod core, the four sets of cross-shaped reinforcing columns are arranged at equal angles, and the length of the cylindrical drill rod core is the same as that of the four sets of cross-shaped reinforcing columns. The upper end of the cylindrical drill rod core is fixedly connected with a first connecting disc; through the cooperation of the cylindrical drill rod core and the multiple sets of cross reinforcing columns, the strength of the drill rod of the rotary drilling rig is enhanced, the safety of the rotary drilling rig in construction is guaranteed, meanwhile, radial shaking generated in the construction process of the rotary drilling rig is effectively reduced, and the qualified rate of holes after construction of the rotary drilling rig is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a cross-reinforced drill rod of a rotary drilling rig. Background Art

[0002] In various practical engineering operations, drilling is an important part. This operation is different from other construction operations. It often takes a long time, involves a large amount of work, and has high requirements for environmental protection near the construction site. The rotary drilling rig is a machine that specializes in drilling. It has the characteristics of various drilling radius, high efficiency, excellent performance, wide adaptability, and user-friendly operation. It has now assumed more and more important tasks among many pile operation equipment.

[0003] In the prior art, the Chinese utility model with publication number: CN218493563U discloses a machine-locked rotary drilling rig drill rod, which ensures that it can be replaced while enhancing the integrity of the drill rod and the drill bit, improving the drilling effect and reliability; it includes a machine-locked drill rod, a mounting frame, a mounting frame perforation, a tightening block, a mounting block, a rotary drilling bit, a mounting block perforation, a threaded sleeve, a tightening bolt, a mounting bolt and a mounting nut, the middle part of the bottom end of the machine-locked drill rod is connected to the top end of the mounting frame, a pair of mounting frame perforations are horizontally arranged in the longitudinal and transverse directions of the mounting frame, the bottom ends of the left and right sides of the mounting frame are respectively connected to the inner ends of a group of tightening blocks, the bottom end of the mounting block is connected to the middle of the top end of the rotary drilling bit, a group of mounting block perforations are respectively arranged on the transverse and longitudinal sides of the mounting block, a group of threaded sleeves are respectively arranged on the left and right sides of the mounting block inside the top end of the rotary drilling bit, the threaded sleeves are matched with the tightening bolts and are also provided with mounting bolts and mounting nuts, and the mounting bolts are threadedly movably connected with the mounting nuts;

[0004] Although the above technical solution is convenient for installing the drill rod and the drill bit, the drill rod in the above technical solution is cylindrical. The cylindrical drill rod may produce radial shaking when driving the drill bit to rotate, thereby affecting the accuracy of drilling and reducing the qualified rate of drilling. It may also cause the connecting bolts to rust and reduce their service life. Therefore, we need to propose a cross-reinforced drill rod for a rotary drilling rig. Utility Model Content

[0005] The purpose of the utility model is to provide a cross-reinforced drill rod for a rotary drilling rig, which improves the overall strength of the drill rod and reduces the amplitude of radial swing of the drill rod by changing the shape of the drill rod, thereby improving the accuracy of drilling and the qualified rate of drilling. At the same time, it is convenient to protect the bolts connecting the drill rod to the drill bit, avoid rusting of the bolts, and increase the overall service life, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a cross-reinforced drill rod of a rotary drilling rig, comprising a drill rod body, the upper end of the drill rod body is detachably connected to a drill rod mounting assembly, and the lower end of the drill rod body is detachably connected to a drill bit connecting assembly;

[0007] The drill rod body includes a cylindrical drill rod core and four groups of cross reinforcement columns, the four groups of cross reinforcement columns are integrally formed and arranged on the outside of the cylindrical drill rod core, the four groups of cross reinforcement columns are arranged at equal angles, the length of the cylindrical drill rod core is the same as the length of the four groups of cross reinforcement columns, the upper end of the cylindrical drill rod core is fixedly connected to a first connecting plate, the lower end of the cylindrical drill rod core is fixedly connected to a second connecting plate, the outer diameter of the first connecting plate is larger than the outer diameter of the cylindrical drill rod core, and the outer diameter of the first connecting plate is the same as the outer diameter of the second connecting plate.

[0008] Preferably, the outer surfaces of the cylindrical drill pipe core and the four groups of cross reinforcement columns are provided with an anti-corrosion layer, and the outer side of the anti-corrosion layer is provided with a wear-resistant layer.

[0009] Preferably, the drill rod installation assembly includes a rotary drilling rig connecting plate that fits with the first connecting plate, and a rotary drilling rig connecting column is fixedly connected to the middle of the upper surface of the rotary drilling rig connecting plate, and the axis of the rotary drilling rig connecting column is arranged on the same axis as the axis of the cylindrical drill rod core.

[0010] Preferably, a plurality of groups of mounting sleeves are fixedly connected to the upper surface of the rotary drilling rig connection plate, mounting gaskets are sleeved on the outer lower ends of the plurality of groups of mounting sleeves, a sheath is threadedly connected to the outer side of each group of mounting sleeves, and a first socket connected to the plurality of groups of mounting sleeves is provided on the upper surface of the first connecting plate.

[0011] Preferably, the drill bit connecting assembly includes a drill bit connecting plate that fits with the second connecting plate, and a plurality of groups of second sockets are provided on the lower surface of the drill bit connecting plate, and second connecting bolts are inserted into the plurality of groups of second sockets, and a drill bit connecting column is fixedly connected to the lower surface of the drill bit connecting plate.

[0012] Preferably, the upper surface of the second connecting plate is provided with multiple groups of connecting screw sleeves connected to the second jack, and the multiple groups of the second connecting bolts are threadedly connected to the inner cavity of the connecting screw sleeve, and the lower ends of the outer sides of the multiple groups of connecting screw sleeves are sleeved with sealing gaskets, and the outer side of each group of connecting screw sleeves is threadedly connected with a protective screw sleeve.

[0013] Preferably, the first connecting bolts threadedly connected to the inner wall of the mounting sleeve are inserted into the multiple groups of the first plug holes, and the axes of the multiple groups of the first connecting bolts are respectively arranged on the same straight line with the axes of the multiple groups of the second connecting bolts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model mainly strengthens the strength of the drill rod of the rotary drilling rig through the cooperation between the cylindrical drill rod core and multiple groups of cross reinforcement columns, thereby ensuring the safety of the rotary drilling rig during construction, and effectively reducing the radial shaking generated by the rotary drilling rig during the construction process, thereby ensuring the qualified rate of the holes after the rotary drilling rig is constructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a drill rod installation assembly and a drill bit connection assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the drill rod body structure of the utility model.

[0019] In the figure: 100, drill pipe body; 101, cylindrical drill pipe core; 102, cross reinforcement column; 103, first connecting plate; 104, first plug hole; 105, second connecting plate; 106, connecting screw sleeve; 107, sealing gasket; 108, protective screw sleeve; 200, drill pipe installation assembly; 201, rotary drilling machine connecting column; 202, rotary drilling machine connecting plate; 203, mounting sleeve; 204, mounting gasket; 205, sleeve; 206, first connecting bolt; 300, drill bit connecting assembly; 301, drill bit connecting column; 302, drill bit connecting plate; 303, second plug hole; 304, second connecting bolt. DETAILED DESCRIPTION

[0020] 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a cross-reinforced drill rod of a rotary drilling rig, comprising a drill rod body 100, a drill rod mounting assembly 200 is detachably connected to the upper end of the drill rod body 100, and a drill bit connecting assembly 300 is detachably connected to the lower end of the drill rod body 100;

[0022] The drill pipe body 100 includes a cylindrical drill pipe core 101 and four groups of cross reinforcement columns 102. The four groups of cross reinforcement columns 102 are integrally formed and arranged on the outside of the cylindrical drill pipe core 101. The four groups of cross reinforcement columns 102 are arranged at equal angles. The length of the cylindrical drill pipe core 101 is the same as the length of the four groups of cross reinforcement columns 102. The upper end of the cylindrical drill pipe core 101 is fixedly connected with a first connecting plate 103, and the lower end of the cylindrical drill pipe core 101 is fixedly connected with a second connecting plate 105. The outer diameter of the first connecting plate 103 is greater than the outer diameter of the cylindrical drill pipe core 101, and the outer diameter of the first connecting plate 103 is the same as the outer diameter of the second connecting plate 105.

[0023] The outer surfaces of the cylindrical drill pipe core 101 and the four groups of cross reinforcement columns 102 are both provided with an anti-corrosion layer, and a wear-resistant layer is provided on the outside of the anti-corrosion layer. The setting of the anti-corrosion layer and the wear-resistant layer increases the service life of the drill pipe body 100, reduces the wear and erosion of the drill pipe body 100 during use, and increases the service life of the drill pipe body 100.

[0024] The drill pipe installation assembly 200 includes a rotary drilling rig connecting plate 202 that matches the first connecting plate 103. A rotary drilling rig connecting column 201 is fixedly connected to the middle of the upper surface of the rotary drilling rig connecting plate 202. The axis of the rotary drilling rig connecting column 201 and the axis of the cylindrical drill pipe core 101 are arranged on the same axis. The rotary drilling rig connecting plate 202 is conveniently fixedly connected to the first connecting plate 103 through the first connecting bolt 206, thereby improving the stability of the drill pipe body 100 after installation.

[0025] A plurality of mounting sleeves 203 are fixedly connected to the upper surface of the rotary drilling rig connection plate 202, and mounting gaskets 204 are sleeved on the outer lower ends of the plurality of mounting sleeves 203. A sleeve 205 is threadedly connected to the outer side of each plurality of mounting sleeves 203. A first plug hole 104 connected to the plurality of mounting sleeves 203 is provided on the upper surface of the first connecting plate 103. The plurality of mounting sleeves 203 facilitate the installation of the first connecting bolt 206. The sleeve 205 can be used to prevent the threads on the first connecting bolt 206 from being corroded, thereby increasing the service life of the first connecting bolt 206.

[0026] The drill bit connecting assembly 300 includes a drill bit connecting plate 302 that fits with the second connecting plate 105. A plurality of groups of second plug holes 303 are provided on the lower surface of the drill bit connecting plate 302. Second connecting bolts 304 are inserted into the plurality of groups of second plug holes 303. A drill bit connecting column 301 is fixedly connected to the lower surface of the drill bit connecting plate 302. The second plug holes 303 and the second connecting bolts 304 are used to facilitate the installation and fixation of the drill bit connecting plate 302 and the second connecting plate 105, thereby improving the stability of the installation.

[0027] The upper surface of the second connecting disk 105 is provided with multiple groups of connecting screw sleeves 106 connected with the second jack 303, and the multiple groups of second connecting bolts 304 are all threadedly connected to the inner cavity of the connecting screw sleeve 106. The lower ends of the outer sides of the multiple groups of connecting screw sleeves 106 are all sleeved with sealing gaskets 107. The outer side of each group of connecting screw sleeves 106 is threadedly connected with a protective screw sleeve 108. The sealing gasket 107 can improve the sealing between the connecting screw sleeve 106 and the protective screw sleeve 108, thereby improving the protection of the second connecting bolts 304 and improving the service life of the second connecting bolts 304.

[0028] The multiple groups of first plug holes 104 are all inserted with first connecting bolts 206 threadedly connected to the inner wall of the mounting sleeve 203. The axes of the multiple groups of first connecting bolts 206 are respectively arranged on the same straight line with the axes of the multiple groups of second connecting bolts 304. The corresponding arrangement of the first connecting bolts 206 and the second connecting bolts 304 can ensure the installation stability, avoid the center deviation of the drill pipe body 100 during rotation, and avoid radial shaking of the drill pipe body 100 during rotation.

[0029] When in use, the cylindrical drill rod core 101 of the drill rod body 100 and multiple groups of cross reinforcement columns 102 replace the original cylindrical drill rod, further improving the strength of the drill rod, avoiding radial shaking of the drill rod body 100 during rotation, improving the hole qualification rate of drilling construction, improving the safety during drilling construction, and improving construction efficiency. At the same time, the drill rod installation assembly 200 is used to facilitate the installation of the drill rod body 100 on the rotary drilling rig, and the drill bit connection assembly 300 is used to facilitate the installation of the drill bit on the drill rod body 100, thereby improving the overall installation efficiency. The sheath 205 and the protective screw sleeve 108 can improve the protection effect of the first connecting bolt 206 and the second connecting bolt 304, reduce the corrosion degree of the first connecting bolt 206 and the second connection, and reduce the maintenance times of the rotary drilling rig.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cross-reinforced drill rod for a rotary drilling rig, comprising a drill rod body (100), characterized in that: The upper end of the drill rod body (100) is detachably connected to a drill rod mounting assembly (200), and the lower end of the drill rod body (100) is detachably connected to a drill bit connecting assembly (300); The drill rod body (100) comprises a cylindrical drill rod core (101) and four groups of cross reinforcement columns (102); the four groups of cross reinforcement columns (102) are integrally formed and arranged outside the cylindrical drill rod core (101); the four groups of cross reinforcement columns (102) are arranged at equal angles; the length of the cylindrical drill rod core (101) is the same as the length of the four groups of cross reinforcement columns (102); the upper end of the cylindrical drill rod core (101) is fixedly connected to a first connection plate (103); the lower end of the cylindrical drill rod core (101) is fixedly connected to a second connection plate (105); the outer diameter of the first connection plate (103) is greater than the outer diameter of the cylindrical drill rod core (101); and the outer diameter of the first connection plate (103) is the same as the outer diameter of the second connection plate (105).

2. A cross-reinforced drill rod for a rotary drilling rig according to claim 1, characterized in that: The outer surfaces of the cylindrical drill rod core (101) and the four groups of cross reinforcement columns (102) are both provided with an anti-corrosion layer, and the outer side of the anti-corrosion layer is provided with a wear-resistant layer.

3. A cross-reinforced drill rod for a rotary drilling rig according to claim 2, characterized in that: The drill rod installation assembly (200) comprises a rotary drilling machine connection plate (202) that fits with the first connection plate (103); a rotary drilling machine connection column (201) is fixedly connected to the middle of the upper surface of the rotary drilling machine connection plate (202); and the axis of the rotary drilling machine connection column (201) and the axis of the cylindrical drill rod core (101) are arranged on the same axis.

4. A cross-reinforced drill rod for a rotary drilling rig according to claim 3, characterized in that: The upper surface of the rotary drilling machine connection plate (202) is fixedly connected to a plurality of groups of mounting sleeves (203); the lower ends of the outer sides of the plurality of groups of mounting sleeves (203) are sleeved with mounting gaskets (204); the outer sides of each group of mounting sleeves (203) are threadedly connected to a sleeve (205); and the upper surface of the first connection plate (103) is provided with a first plug hole (104) that is in communication with the plurality of groups of mounting sleeves (203).

5. A cross-reinforced drill rod for a rotary drilling rig according to claim 4, characterized in that: The drill bit connection assembly (300) comprises a drill bit connection plate (302) that fits with the second connection plate (105); a plurality of groups of second plug holes (303) are provided on the lower surface of the drill bit connection plate (302); second connection bolts (304) are inserted into the plurality of groups of second plug holes (303); and a drill bit connection column (301) is fixedly connected to the lower surface of the drill bit connection plate (302).

6. A cross-reinforced drill rod for a rotary drilling rig according to claim 5, characterized in that: The upper surface of the second connection plate (105) is provided with a plurality of groups of connection screw sleeves (106) connected to the second insertion hole (303); the plurality of groups of the second connection bolts (304) are all threadedly connected to the inner cavity of the connection screw sleeve (106); the lower ends of the outer sides of the plurality of groups of the connection screw sleeves (106) are all sleeved with sealing gaskets (107); and the outer side of each group of the connection screw sleeves (106) is threadedly connected to a protective screw sleeve (108).

7. A cross-reinforced drill rod for a rotary drilling rig according to claim 6, characterized in that: A first connecting bolt (206) threadedly connected to the inner wall of the mounting sleeve (203) is inserted into each of the plurality of first plug holes (104), and the axes of the plurality of first connecting bolts (206) are arranged on the same straight line as the axes of the plurality of second connecting bolts (304).

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