Cylinder type drilling bucket structure for rotary drilling rig

Abstract

The utility model relates to the technical field of rotary drilling rigs, in particular to a barrel type drilling bucket structure for a rotary drilling rig. Comprising a bucket body and a gear ring, the top of the bucket body is connected with a drill rod connector, the gear ring is connected with the bottom of the bucket body in an inserted mode, drill teeth are distributed at the bottom of the gear ring, and a locking device is connected between the gear ring and the bucket body. The locking device comprises a containing groove formed in the outer wall of the hopper body, and a mounting groove is formed in the lower half portion of the containing groove and penetrates through the hopper body. An insertion opening corresponding to the mounting groove is formed in the gear ring; inserting rods are inserted into the inserting openings and the mounting grooves; a positioning block is arranged on the placement groove, a vertical guide hole is formed in the positioning block, a pin is inserted into the guide hole, a pin hole corresponding to the pin is formed in the insertion rod, and the lower end of the pin in the guide hole is inserted into the pin hole; the gear ring and the drill teeth can be rapidly replaced, and the practicability of equipment is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drilling rigs, in particular to a cylindrical drill bucket structure for rotary drilling rigs. Background Art

[0002] A rotary drilling rig is a construction machine suitable for drilling holes in building foundation projects. It is primarily suitable for drilling in sandy, clayey, and silty soils. It is widely used in various foundation construction projects, including cast-in-place piles, diaphragm walls, and foundation reinforcement. The rated power of a rotary drilling rig is generally 125 to 450 kW, with a power output torque of 120 to 400 kN·m. The maximum drilling diameter can reach 1.5 to 4 meters, and the maximum drilling depth is 60 to 90 meters, meeting the requirements of various large-scale foundation construction projects.

[0003] The drill bit and drill barrel of existing equipment are integrated. Different drill buckets need to be replaced when facing different geological structures, which increases transportation costs. In addition, the drill bits of most equipment are welded to the drill bucket. When they need to be replaced, they must first be cut and then welded. The replacement efficiency is low, and this needs to be improved. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages to be described below.

[0005] The utility model provides the following technical solution: a cylindrical drill bucket structure for a rotary drilling rig, comprising a bucket body and a gear ring; a drill rod joint is connected to the top of the bucket body, the gear ring is plugged into the bottom of the bucket body, drill teeth are distributed on the bottom of the gear ring, and a locking device is connected between the gear ring and the bucket body;

[0006] The locking device includes a placement groove provided on the outer wall of the bucket body, a mounting groove provided in the lower half of the placement groove, and the mounting groove passes through the bucket body; a socket corresponding to the mounting groove is provided on the gear ring; a rod is inserted into the socket and the mounting groove;

[0007] A positioning block is provided on the placement slot, a vertical guide hole is opened on the positioning block, a pin is inserted into the guide hole, a pin hole corresponding to the pin is provided on the insertion rod, and the lower end of the pin in the guide hole is inserted into the pin hole.

[0008] Furthermore, a convex stop is provided on the gear ring, and a concave stop is provided on the bucket body. The gear ring and the bucket body are connected through the convex stop and the concave stop, the socket is located on the convex stop, and the installation groove is located on the concave stop.

[0009] Furthermore, a slide groove connected to the guide hole is opened on the positioning block, and a slide piece adapted to the slide groove is provided on the pin. The guide hole is a round hole, and the pin is a cylindrical pin. The pin is inserted into the pin hole of the insertion rod, and the pin rotates until the slide piece stops at the end face of the positioning block.

[0010] Furthermore, the drill tooth is installed on the gear ring through a locking tooth structure; the locking tooth structure includes an insert block, the top of the drill tooth is connected to the insert block, insert plates are provided on both sides of the insert block, the bottom surface of the gear ring is provided with a large slot adapted to the insert block and a small slot adapted to the insert plate, a lock hole is provided on the insert plate, and a lock body is provided on the gear ring.

[0011] Furthermore, the lock body includes a locking rod, a retaining ring and a spring. A guide hole is opened on the gear ring. The locking rod is inserted into the guide hole. The retaining ring is installed on the locking rod. The spring is sleeved on the locking rod. One end of the spring presses against the retaining ring and the other end presses against the end face of the guide hole. One end of the locking rod is exposed and the other end passes through the small slot.

[0012] Furthermore, the outer wall of the bucket body is provided with wear-resistant strips, and the bucket body is provided with slurry discharge holes.

[0013] Furthermore, the drill pipe joint includes a square tube, which is fixed on the top of the bucket body. A rib is connected between the square tube and the bucket body, and a support hole is opened on the square tube.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] The locking device facilitates the quick replacement of the gear ring, effectively improving the practicality of the equipment. The locking tooth structure facilitates the maintenance and replacement of the drill teeth. Since the drill teeth of existing equipment are directly welded to the bucket body, which wastes time when replacing, the drill teeth of the utility model can be repaired and replaced separately, reducing maintenance time, improving work efficiency and reducing use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 is a schematic diagram of the locking device;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 is a schematic diagram of the ring gear;

[0020] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0021] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0022] In the figure: 1- bucket body; 2- rib plate; 3- square tube; 4- support hole; 5- wear-resistant strip; 6- slurry discharge hole; 7- gear ring; 701- socket; 8- locking device; 801- mounting slot; 802- placement slot; 803- positioning block; 804- guide hole; 805- slide groove; 806- pin; 807- slide plate; 808- plug rod; 809- pin hole; 9- locking tooth structure; 901- large slot; 902- small slot; 903- spring; 904- plug block; 905- drill tooth; 906- plug plate; 907- guide hole; 908- locking rod; 909- retaining ring. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown: A cylindrical drill bucket structure for a rotary drilling rig includes a bucket body 1 and a gear ring 7; the top of the bucket body 1 is connected to a drill rod joint, the gear ring 7 is plugged into the bottom of the bucket body 1, drill teeth 905 are distributed on the bottom of the gear ring 7, and a locking device 8 is connected between the gear ring 7 and the bucket body 1.

[0025] The locking device 8 includes a placement groove 802 opened on the outer wall of the bucket body 1, and a mounting groove 801 is opened in the lower half of the placement groove 802, and the mounting groove 801 passes through the bucket body 1; a socket 701 corresponding to the mounting groove 801 is provided on the ring gear 7; an insertion rod 808 is inserted into the socket 701 and the mounting groove 801; after the ring gear 7 is inserted into the bucket body 1, the insertion rod 808 is inserted horizontally, and the two ends of the insertion rod 808 are stuck on the bucket body 1 to prevent the ring gear 7 from falling from the bucket body 1.

[0026] In order to prevent the insertion rod 808 from sliding horizontally, a positioning block 803 is provided on the placement groove 802, and a vertical guide hole 804 is opened on the positioning block 803. A pin 806 is inserted into the guide hole 804, and a pin hole 809 corresponding to the pin 806 is provided on the insertion rod 808. The lower end of the pin 806 in the guide hole 804 is inserted into the pin hole 809 to prevent the insertion rod 808 from sliding horizontally.

[0027] Specifically, a convex stop is provided on the gear ring 7, and a concave stop is provided on the bucket body 1. The gear ring 7 and the bucket body 1 are connected through the convex stop and the concave stop. The socket 701 is located on the convex stop, and the installation groove 801 is located on the concave stop.

[0028] In order to prevent the pin 806 from jumping up and down, a sliding groove 805 connected to the guide hole 804 is provided on the positioning block 803, and a slide 807 adapted to the sliding groove 805 is provided on the pin 806. The guide hole 804 is a round hole, and the pin 806 is a cylindrical pin. The pin 806 is inserted into the pin hole 809 of the insertion rod 808, and the slide 807 can slide to the top or bottom of the positioning block 803 through the sliding groove 805. When the insertion rod 808 is inserted, the pin 806 rotates until the slide 807 stops at the bottom end surface of the positioning block 803, and the positioning block 803 prevents the pin 806 from moving up. When the insertion rod 808 is to be pulled out, the pin 806 rotates until the slide 807 stops at the top end surface of the positioning block 803, and the pin 806 remains at the upper part, and the insertion rod 808 can be pulled out smoothly; after the insertion rod 808 is pulled out, the gear ring 7 can be separated from the bucket body 1.

[0029] like Figure 5 、 Figure 6 As shown: the drill tooth 905 is installed on the gear ring 7 through the locking tooth structure 9; the locking tooth structure 9 includes an insert block 904, the top of the drill tooth 905 is connected to the insert block 904, and insert plates 906 are provided on both sides of the insert block 904. The bottom surface of the gear ring 7 is provided with a large slot 901 adapted to the insert block 904 and a small slot 902 adapted to the insert plate 906. A lock hole is provided on the insert plate 906, and a lock body is provided on the gear ring 7.

[0030] The lock body includes a locking rod 908, a retaining ring 909, and a spring 903. A guide hole 907 is formed on the gear ring 7. The locking rod 908 is inserted into the guide hole 907 and can slide back and forth. The retaining ring 909 is mounted on the locking rod 908, and the spring 903 is sleeved on the locking rod 908. One end of the spring 903 presses against the retaining ring 909 and the other end presses against the end surface of the guide hole 907. One end of the locking rod 908 is exposed and the other end passes through the small slot 902. When the locking rod 908 is pulled out, the locking rod 908 separates from the lock hole on the insert plate 906, and the insert plate 906 can slide out of the small slot 902. In the absence of external force, the spring 903 pushes the locking rod 908 to keep it inserted into the lock hole of the insert plate 906.

[0031] The outer wall of the bucket body 1 is provided with wear-resistant strips 5, and the bucket body 1 is provided with slurry discharge holes 6.

[0032] The drill pipe joint includes a square tube 3, which is fixed on the top of the bucket body 1. A rib 2 is connected between the square tube 3 and the bucket body 1, and a support hole 4 is opened on the square tube 3.

[0033] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cylindrical drill bucket structure for a rotary drilling rig, characterized in that: It comprises a bucket body (1) and a gear ring (7); the top of the bucket body (1) is connected to a drill rod joint, the gear ring (7) is plugged into the bottom of the bucket body (1), the bottom of the gear ring (7) is distributed with drill teeth (905), and a locking device (8) is connected between the gear ring (7) and the bucket body (1); The locking device (8) includes a placement groove (802) provided on the outer wall of the bucket body (1), a mounting groove (801) provided in the lower half of the placement groove (802), and the mounting groove (801) passes through the bucket body (1); a socket (701) corresponding to the mounting groove (801) is provided on the gear ring (7); an insertion rod (808) is inserted into the socket (701) and the mounting groove (801); A positioning block (803) is provided on the placement groove (802), a vertical guide hole (804) is opened on the positioning block (803), a pin (806) is inserted into the guide hole (804), a pin hole (809) corresponding to the pin (806) is provided on the insertion rod (808), and the lower end of the pin (806) in the guide hole (804) is inserted into the pin hole (809).

2. The cylindrical drill bucket structure for a rotary drilling rig according to claim 1, characterized in that: The gear ring (7) is provided with a convex stop, and the bucket body (1) is provided with a concave stop. The gear ring (7) and the bucket body (1) are connected through the convex stop and the concave stop, the socket (701) is located on the convex stop, and the installation groove (801) is located on the concave stop.

3. The cylindrical drill bucket structure for a rotary drilling rig according to claim 2, characterized in that: The positioning block (803) is provided with a slide groove (805) connected to the guide hole (804), and the pin (806) is provided with a slide plate (807) adapted to the slide groove (805). The guide hole (804) is a round hole, and the pin (806) is a cylindrical pin. The pin (806) is inserted into the pin hole (809) of the insertion rod (808), and the pin (806) rotates until the slide plate (807) stops at the end face of the positioning block (803).

4. The cylindrical drill bucket structure for a rotary drilling rig according to claim 1 or 3, characterized in that: The drill tooth (905) is mounted on the gear ring (7) via a locking tooth structure (9); the locking tooth structure (9) comprises an insert block (904); the top of the drill tooth (905) is connected to the insert block (904); insert plates (906) are provided on both sides of the insert block (904); a large slot (901) adapted to the insert block (904) and a small slot (902) adapted to the insert plate (906) are provided on the bottom surface of the gear ring (7); a lock hole is provided on the insert plate (906); and a lock body is provided on the gear ring (7).

5. The cylindrical drill bucket structure for a rotary drilling rig according to claim 4, characterized in that: The lock body comprises a locking rod (908), a retaining ring (909) and a spring (903); a guide hole (907) is opened on the gear ring (7); the locking rod (908) is inserted into the guide hole (907); the retaining ring (909) is installed on the locking rod (908); the spring (903) is sleeved on the locking rod (908); one end of the spring (903) presses against the retaining ring (909) and the other end presses against the end surface of the guide hole (907); one end of the locking rod (908) is exposed and the other end passes through the small slot (902).

6. The cylindrical drill bucket structure for a rotary drilling rig according to claim 1, characterized in that: The outer wall of the bucket body (1) is provided with a wear-resistant strip (5), and the bucket body (1) is provided with a pulp discharge hole (6).

7. The cylindrical drill bucket structure for a rotary drilling rig according to claim 1, characterized in that: The drill pipe joint comprises a square tube (3), which is fixed on the top of the bucket body (1), a rib plate (2) is connected between the square tube (3) and the bucket body (1), and a support hole (4) is opened on the square tube (3).

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