PDC drill bit connection anti-drop structure

Abstract

The utility model relates to the technical field of connection anti-disengaging structures, and discloses a PDC drill bit connection anti-disengaging structure which comprises a drill bit body and further comprises a limiting installation base and a flow adjusting assembly, drill bit teeth are arranged in the drill bit body, a water conveying hole is formed in the drill bit body, and the back of the drill bit body is fixedly connected with the connection installation base. A connecting mounting shell is movably connected to the back of the connecting mounting base, a conveying pipe is fixedly connected to the back of the connecting mounting shell, the limiting mounting base is fixedly connected to the interior of the connecting mounting shell, and an extrusion fixing plate is slidably connected to the interior of the limiting mounting base. An adjusting nut is twisted by means of a tool to drive a threaded bolt to rotate in a connecting mounting shell, and under the condition that the threaded bolt is in threaded connection with the connecting mounting shell, an extrusion fixing plate is pushed to fix and limit a connecting fixing pipe under limiting of a limiting mounting base, so that the connecting fixing pipe can be adjusted according to the connecting size of a drill bit; and flexible adjustability is achieved, and the construction effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of connecting anti -drop structure especially relates to PDC drill bit connecting anti -drop structure. BACKGROUND

[0002] PDC drill bit is widely used in the field of oil and gas, mine engineering, building foundation engineering construction, in order to prevent the connection loosening even falling in long time construction, the connecting part of PDC drill bit usually adopts the specific anti -drop structure design, this design aims at improving the stability and safety of drill bit, ensures the smooth operation of drilling operation.

[0003] In the prior art, since the device is connected to the inside of the drilling equipment by thread connection when in use, the ground is contacted by the drill bit to start the machine to drill the ground by rotating, the water source is conveyed in the hole to prevent overheating while softening the mud layer, the device is connected by the form of thread when connecting, since the types and sizes of drill bits are different, it may cause ineffective installation during installation, leading to drill bit loosening after installation, affecting the construction effect, therefore, the PDC drill bit connecting anti -drop structure needs to be improved to solve the above problems. SUMMARY

[0004] In order to overcome the problem that the PDC drill bit connecting anti -drop structure may cause ineffective installation during installation due to the different types and sizes of drill bits, leading to drill bit loosening after installation, affecting the construction effect.

[0005] The technical scheme of the utility model is: PDC drill bit connecting anti -drop structure, including drill bit body, still including limit installation seat and flow regulation assembly, the inside of drill bit body is provided with drill bit tooth, the inside of drill bit body is provided with water delivery hole, the back of drill bit body is fixedly connected with connecting installation seat, the back of connecting installation seat is movably connected with the link installation shell, the back of link installation shell is fixedly connected with the delivery pipe, the limit installation seat is fixedly connected in the inside of link installation shell, the inside of limit installation seat is slidably connected with extrusion fixed plate, the outside of extrusion fixed plate is fixedly connected with threaded bolt, the inside of threaded bolt is provided with adjusting nut, by twisting adjusting nut, make its threaded bolt rotate, push extrusion fixed plate and extrude.

[0006] As preferred, the limit installation seat is provided with a sliding groove at the corresponding position of the extrusion fixed plate, and the extrusion fixed plate slides in the sliding groove.

[0007] As preferred, the back of the connecting installation seat is fixedly connected with the connecting fixed pipe, the inside of the link installation shell is fixedly connected with the threaded connecting cylinder, and the outside of the threaded connecting cylinder is threadedly connected with the threaded interface.

[0008] As preferred, the limiting mounting base is provided with a sliding groove at a position corresponding to the connecting fixed pipe, and the connecting fixed pipe moves in the sliding groove.

[0009] As preferred, the connecting mounting shell is provided with a sliding groove at a position corresponding to the connecting fixed pipe, and the connecting fixed pipe moves in the sliding groove.

[0010] As preferred, the flow regulating assembly comprises a driving motor, the driving motor is arranged at the left side of the connecting fixed pipe, the output end of the driving motor is fixedly connected with a rotating push shaft, the rotating push shaft is rotatably connected in the driving motor, the outer portion of the rotating push shaft is fixedly connected with a limiting rotating plate, the inner portion of the limiting rotating plate is rotatably connected with a push bracket, the front surface of the push bracket is fixedly connected with a push plate, the front surface of the push plate is fixedly connected with a flow regulating pipe, the flow regulating pipe slides in the connecting mounting shell, the inner portion of the flow regulating pipe is provided with a water flow groove, and the inner portion of the connecting mounting shell is provided with a discharge groove.

[0011] As preferred, the connecting mounting shell is provided with a sliding groove at a position corresponding to the flow regulating pipe, and the flow regulating pipe slides in the sliding groove.

[0012] The utility model discloses the beneficial effect has: relative to PDC drill bit connection anti -drop structure, through the help of tool twist and adjust the nut drive screw bolt in the inside rotation of connecting mounting shell, under the condition that the screw bolt is connected with the thread of connecting mounting shell, push extrusion fixed plate is fixed and positioned under the limiting of limiting mounting seat to connecting fixed pipe, can adjust according to the size of drill bit connection, has flexible adjustability, improves the effect of construction, thereby effectively prevent the type of drill bit from being different in size and causing the installation to be possibly unable to effectively install. ACCURACY OF DRAWINGS

[0013] Figure 1 It is appearance structure schematic diagram of the utility model;

[0014] Figure 2 It is appearance sectional structure schematic diagram of the utility model;

[0015] Figure 3 It is appearance exploded structure schematic diagram of the utility model;

[0016] Figure 4 It is connecting mounting shell internal structure schematic diagram of the utility model;

[0017] Figure 5 It is flow regulating assembly structure schematic diagram of the utility model.

[0018] Explanation of reference signs: 1, drill bit body; 2, drill bit tooth; 3, water delivery hole; 4, connecting mounting seat; 5, connecting mounting shell; 6, delivery pipe; 801, connecting fixed pipe; 802, limiting mounting seat; 803, threaded connection cylinder; 804, threaded interface; 805, threaded bolt; 806, extrusion fixing plate; 807, adjusting nut; 901, driving motor; 902, rotating push shaft; 903, limiting rotating plate; 904, push bracket; 905, push plate; 906, flow regulating pipe; 907, water flow groove; 908, discharge groove. DETAILED DESCRIPTION

[0019] The utility model is further explained in connection with the drawings and examples.

[0020] Please refer to Figure 1 - Figure 5 The utility model provides a kind of embodiment: PDC drill bit connection anti-drop structure, including drill bit body 1, still including limiting mounting seat 802 and flow regulating assembly, the inside of drill bit body 1 is provided with drill bit tooth 2, water delivery hole 3 is set in the inside of drill bit body 1, the back of drill bit body 1 is fixedly connected with connecting mounting seat 4, the back of connecting mounting seat 4 is movably connected with connecting mounting shell 5, the back of connecting mounting shell 5 is fixedly connected with delivery pipe 6, limiting mounting seat 802 is fixedly connected in the inside of connecting mounting shell 5, extrusion fixing plate 806 is slidably connected in the inside of limiting mounting seat 802, threaded bolt 805 is fixedly connected on the outside of extrusion fixing plate 806, adjusting nut 807 is set in the inside of threaded bolt 805, by twisting adjusting nut 807, make its threaded bolt 805 rotate push extrusion fixing plate 806 extrude, by being set drill bit tooth 2, it plays the role of breaking to soil and stone, by being set water delivery hole 3, it is used for delivery water flow, by being inserted adjusting nut 807 inside by means of tool, by twisting adjusting nut 807, drive threaded bolt 805 rotate in the inside of connecting mounting shell 5, by the screw thread connection of threaded bolt 805 and connecting mounting shell 5, push extrusion fixing plate 806 extrude, limiting mounting seat 802 is set with sliding groove in the corresponding position of extrusion fixing plate 806, extrusion fixing plate 806 is slid in the inside of sliding groove, by being set sliding groove in the inside of limiting mounting seat 802 corresponding extrusion fixing plate 806 position, make extrusion fixing plate 806 be limited when sliding in sliding groove.

[0021] Please refer to Figure 3 - Figure 4In the embodiment, the back of the connecting mounting seat 4 is fixedly connected with a connecting fixed pipe 801, the inside of the connecting mounting shell 5 is fixedly connected with a threaded connecting cylinder 803, the outside of the threaded connecting cylinder 803 is threadedly connected with a threaded connector 804, the threaded connector 804 is connected into the outside of the threaded connecting cylinder 803, the connecting fixed pipe 801 and the conveying pipe 6 are connected, the limiting mounting seat 802 is provided with a sliding groove at the corresponding position of the connecting fixed pipe 801, the connecting fixed pipe 801 is movable in the sliding groove, the connecting fixed pipe 801 is limited when sliding in the sliding groove through the sliding groove provided in the limiting mounting seat 802 at the position corresponding to the connecting fixed pipe 801, the connecting mounting shell 5 is provided with a sliding groove at the position corresponding to the connecting fixed pipe 801, the connecting fixed pipe 801 is movable in the sliding groove, the connecting fixed pipe 801 is limited when sliding in the sliding groove through the sliding groove provided in the connecting mounting shell 5 at the position corresponding to the connecting fixed pipe 801.

[0022] Please refer to Figure 5 In the embodiment, the flow regulating assembly comprises a driving motor 901, the driving motor 901 is arranged on the left side of the connecting fixed pipe 801, the output end of the driving motor 901 is fixedly connected with a rotating push shaft 902, the rotating push shaft 902 is rotatably connected in the inside of the driving motor 901, the outside of the rotating push shaft 902 is fixedly connected with a limiting rotating plate 903, the inside of the limiting rotating plate 903 is rotatably connected with a push bracket 904, the front of the push bracket 904 is fixedly connected with a push plate 905, the front of the push plate 905 is fixedly connected with a flow regulating pipe 906, the flow regulating pipe 906 is slidable in the inside of the connecting mounting shell 5, the inside of the flow regulating pipe 906 is provided with a water flow groove 907, the inside of the connecting mounting shell 5 is provided with a discharge groove 908, the rotating push shaft 902 is driven to rotate in the inside of the connecting fixed pipe 801 through the driving motor 901, the flow regulating pipe 906 on the push plate 905 is driven to slide in the inside of the connecting fixed pipe 801 through the rotation of the rotating push shaft 902 to drive the limiting rotating plate 903 and the push bracket 904, the connecting mounting shell 5 is provided with a sliding groove at the position corresponding to the flow regulating pipe 906, the flow regulating pipe 906 is slidable in the sliding groove, the flow regulating pipe 906 is limited when sliding in the sliding groove through the sliding groove provided in the connecting mounting shell 5 at the position corresponding to the flow regulating pipe 906.

[0023] In the working process, the connecting fixed pipe 801 is inserted into the inside of the connecting installation shell 5, the connecting installation seat 4 is screwed with the threaded connecting cylinder 803 by twisting, the threaded bolt 805 is rotated in the inside of the connecting installation shell 5 by twisting the adjusting nut 807 with the aid of a tool, the extrusion fixed plate 806 is pushed to limit and fix the connecting fixed pipe 801 under the limitation of the limiting installation seat 802, the rotating push shaft 902 is driven to rotate in the inside of the connecting fixed pipe 801 by driving the motor 901, the limiting rotating plate 903 and the push bracket 904 are moved by the rotation of the connecting fixed pipe 801, the push plate 905 pushes and pulls the flow regulating pipe 906 by the movement of the push bracket 904, the flow of water into the water flow groove 907 is controlled by pushing and pulling the flow regulating pipe 906, and the water flows out through the water outlet hole 3 through the discharge groove 908.

[0024] Through the above steps, the threaded bolt 805 is rotated in the inside of the connecting installation shell 5 by twisting the adjusting nut 807 with the aid of a tool, the extrusion fixed plate 806 is pushed to limit and fix the connecting fixed pipe 801 under the limitation of the limiting installation seat 802 under the condition that the threaded bolt 805 is screwed with the connecting installation shell 5, so as to solve the problem that the PDC drill bit connecting anti-disengagement structure cannot be effectively installed due to different types and sizes of drill bits during installation, the drill bit is loose after installation, and the construction effect is affected.

Claims

1. A PDC drill bit connection anti-disengagement structure, comprising a drill bit body (1), characterized in that: It also includes a limiting mounting base (802) and a flow regulating component. The drill bit body (1) is provided with drill teeth (2) inside. The drill bit body (1) is provided with a water supply hole (3) inside. A connecting mounting base (4) is fixedly connected to the back of the drill bit body (1). A connecting mounting shell (5) is movably connected to the back of the connecting mounting base (4). A conveying pipe (6) is fixedly connected to the back of the connecting mounting shell (5). The limiting mounting base (802) is fixedly connected inside the connecting mounting shell (5). A compression fixing plate (806) is slidably connected inside the limiting mounting base (802). A threaded bolt (805) is fixedly connected to the outside of the compression fixing plate (806). An adjusting nut (807) is provided inside the threaded bolt (805). By twisting the adjusting nut (807), the threaded bolt (805) is rotated to push the compression fixing plate (806) to compress.

2. The PDC drill bit connection anti-detachment structure according to claim 1, characterized in that: The limiting mounting base (802) has a groove at the corresponding position of the extrusion fixing plate (806), and the extrusion fixing plate (806) slides inside the groove.

3. The PDC drill bit connection anti-detachment structure according to claim 1, characterized in that: The back of the connecting mounting base (4) is fixedly connected to a connecting fixing tube (801), and the inside of the connecting mounting shell (5) is fixedly connected to a threaded connecting sleeve (803). The threaded connecting sleeve (803) is externally threaded connected to a threaded interface (804).

4. The PDC drill bit connection anti-detachment structure according to claim 3, characterized in that: The limiting mounting base (802) has a groove at the corresponding position of the connecting fixing tube (801), and the connecting fixing tube (801) moves inside the groove.

5. The PDC drill bit connection anti-detachment structure according to claim 3, characterized in that: The connecting mounting shell (5) has a groove at the corresponding position of the connecting fixing tube (801), and the connecting fixing tube (801) moves inside the groove.

6. The PDC drill bit connection anti-detachment structure according to claim 1, characterized in that: The flow regulating component includes a drive motor (901), which is located on the left side of the connecting fixed pipe (801). The output end of the drive motor (901) is fixedly connected to a rotating push shaft (902), which is rotatably connected inside the drive motor (901). A limit rotating plate (903) is fixedly connected to the outside of the rotating push shaft (902). A push bracket (904) is rotatably connected inside the limit rotating plate (903). A push plate (905) is fixedly connected to the front of the push bracket (904). A flow regulating pipe (906) is fixedly connected to the front of the push plate (905). The flow regulating pipe (906) slides inside the connecting mounting shell (5). A water flow groove (907) is opened inside the flow regulating pipe (906), and a discharge groove (908) is opened inside the connecting mounting shell (5).

7. The PDC drill bit connection anti-detachment structure according to claim 6, characterized in that: The connecting mounting shell (5) has a groove at the corresponding position of the flow regulating pipe (906), and the flow regulating pipe (906) slides inside the groove.

Images