Oil well drill bit with buffer structure

Abstract

The utility model relates to the field of oil well drilling, in particular to an oil well drill bit with a buffer structure and a connecting piece, the outer portion of the connecting piece is rotatably connected with a rotating shaft, the outer portion of the rotating shaft is fixedly connected with a rotor, the outer portion of the rotor is rotatably connected with a crank, and the outer portion of the crank is rotatably connected with a hanging lug. A sliding rod is fixedly connected to the outer portion of the hanging lug, a drill rod is slidably connected to the outer portion of the sliding rod, a first spring is fixedly connected to the outer portion of the drill rod, a first telescopic rod is slidably connected to the outer portion of the drill rod, a fixing rod is fixedly connected to the outer portion of the drill rod, and a second spring is fixedly connected to the outer portion of the fixing rod. The fixed rod is in sliding connection with the sliding rod; the drilling rod and the connecting piece are connected in a sliding mode, a drill bit is connected to the outer portion of the connecting piece, impact energy can be absorbed, abrasion can be reduced when the drill bit drills, and the drilling efficiency of the drill bit is kept.

Description

Technical Field

[0001] The utility model relates to the field of oil well drilling, in particular to an oil well drill bit with a buffer structure. Background Art

[0002] Traditional oil well drill bits can encounter challenges during drilling, especially when working with complex formations or rock hardness variations. Due to formation heterogeneity and varying rock hardness, the drill bit is subject to significant shock and vibration during operation, which can affect its stability and service life, and even lead to damage or drilling accidents.

[0003] In the prior art, oil well drill bits cannot adapt to different impacts and vibrations when facing rocks of different hardness and properties, resulting in reduced wear resistance, inability to effectively absorb impact energy, and inability to maintain the drilling efficiency of the drill bit. Utility Model Content

[0004] The purpose of the present utility model is to provide an oil well drill bit with a buffer structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connecting member, wherein the connecting member is rotatably connected to a rotating shaft on the outside, the rotating shaft is fixedly connected to a rotor on the outside, the rotor is rotatably connected to a crank on the outside, the crank is rotatably connected to a hanging ear on the outside, the hanging ear is fixedly connected to a sliding rod on the outside, the sliding rod is slidably connected to a drill rod on the outside, the drill rod is fixedly connected to a first spring on the outside, the drill rod is slidably connected to a first telescopic rod on the outside, the drill rod is fixedly connected to a fixed rod on the outside, the fixed rod is fixedly connected to a second spring on the outside, and the fixed rod and the sliding rod are slidably connected therebetween;

[0006] The drill rod is slidably connected to the connecting piece, and a drill bit is externally connected to the connecting piece.

[0007] Preferably, the connector is externally fixedly connected to a mounting block, the mounting block is externally rotatably connected to a rotating shaft, and the rotating shaft is rotatably connected to the connector via the mounting block.

[0008] Preferably, a sliding sleeve is fixedly connected to the outside of the drill rod, a sliding rod is slidably connected to the outside of the sliding sleeve, and the sliding rod and the drill rod are slidably connected via the sliding sleeve.

[0009] Preferably, a protective sleeve is fixedly connected to the outside of the drill rod, a connecting piece is slidably connected to the outside of the protective sleeve, and the connecting piece and the drill rod are slidably connected via the protective sleeve.

[0010] Preferably, a threaded barrel is provided on the outside of the connecting piece, a threaded rod is fixedly connected to the outside of the drill bit, the threaded rod and the threaded barrel are threadedly connected, and the drill bit and the connecting piece are threadedly connected through the threaded rod and the threaded barrel.

[0011] Preferably, the outside of the drill rod is fixedly connected to a second telescopic rod, the outside of the second telescopic rod is slidably connected to the first telescopic rod, and the drill rod and the first telescopic rod are slidably connected via the second telescopic rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are: when in use, since the drill bit and the connecting piece are threadedly connected through the threaded barrel, the drill bit is more firmly connected to the connecting piece when working; when the drill bit is drilling rock, since the connecting piece and the drill rod are slidingly connected through the protective sleeve, the drill cuttings and cutting fluid residues generated during drilling can be effectively prevented from affecting the normal operation of the cache structure; at the same time, when the drill bit starts working, the first spring buffers the connecting piece, and since the fixed rod is slidingly connected to the sliding rod, the fixed rod is fixedly connected to the second spring, so that when the drill bit squeezes the connecting piece, appropriate deformation can occur under impact, absorbing energy to provide a stable buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic structural diagram of the first part of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the second part of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the third part of the utility model.

[0017] In the figure: 1. drill rod; 2. drill bit; 3. connecting piece; 4. threaded barrel; 5. threaded rod; 6. rotating shaft; 7. rotor; 8. crank; 9. first spring; 10. hanging ear; 11. sliding sleeve; 12. sliding rod; 13. fixing rod; 14. second spring; 15. protective cover; 16. mounting block; 17. first telescopic rod; 18. second telescopic rod. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0019] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0020] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In this utility model, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integration; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or an interaction between two components. However, the phrase "direct connection" indicates that the two connected entities are not connected through an intermediate structure, but are connected to form a whole through a connecting structure. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0022] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0023] Example 1

[0024] Refer to the diagram of drill rod 1 to Figure 3The utility model provides a technical solution: a connecting member 3, the connecting member 3 is externally rotatably connected to a rotating shaft 6, the external of the rotating shaft 6 is fixedly connected to a rotor 7, the external of the rotor 7 is rotatably connected to a crank 8, the external of the crank 8 is rotatably connected to a hanging ear 10, the external of the hanging ear 10 is fixedly connected to a sliding rod 12, the external of the sliding rod 12 is slidably connected to a drill rod 1, the external of the drill rod 1 is fixedly connected to a first spring 9, the external of the drill rod 1 is slidably connected to a first telescopic rod 17, the external of the drill rod 1 is fixedly connected to a fixed rod 13, the external of the fixed rod 13 is fixedly connected to a second spring 14, the fixed rod 13 It is slidingly connected to the slide rod 12; the connecting member 3 is fixedly connected to the outside of the mounting block 16, and the mounting block 16 is rotatably connected to the rotating shaft 6, and the rotating shaft 6 and the connecting member 3 are rotatably connected via the mounting block 16; the drill rod 1 is fixedly connected to the outside of the sliding sleeve 11, and the sliding sleeve 11 is slidably connected to the slide rod 12, and the slide rod 12 and the drill rod 1 are slidably connected via the sliding sleeve 11; the drill rod 1 is fixedly connected to the outside of the second telescopic rod 18, and the second telescopic rod 18 is slidably connected to the first telescopic rod 17, and the drill rod 1 and the first telescopic rod 17 are slidably connected via the second telescopic rod 18.

[0025] Since the drill rod 1 and the mounting block 16 are slidingly connected via the second telescopic rod 18 and the first telescopic rod 17, and the mounting block 16 is fixedly connected to the first spring 9, and the drill rod 1 is fixedly connected to the first spring 9, when the connecting member 3 is squeezed by the drill bit, the first spring 9 can provide buffering. At the same time, since the drill rod 1 is fixedly connected to the fixed rod 13, the fixed rod 13 is fixedly connected to the second spring 14, the fixed rod 13 is slidingly connected to the slide rod 12, and the slide rod 12 is slidingly connected to the sleeve 11, the rotor 7 can be driven to rotate under the squeezing of force, energy can be absorbed, and a stable buffering effect can be achieved.

[0026] Example 2

[0027] On the basis of Example 1, the drill rod 1 is slidingly connected to the connecting member 3, and the drill bit 2 is connected to the outside of the connecting member 3; the drill rod 1 is fixedly connected to the outside of the protective sleeve 15, and the connecting member 3 is slidingly connected to the outside of the protective sleeve 15, and the connecting member 3 and the drill rod 1 are slidingly connected through the protective sleeve 15; a threaded barrel 4 is opened on the outside of the connecting member 3, and the drill bit 2 is fixedly connected to the outside of the threaded rod 5, and the threaded rod 5 and the threaded barrel 4 are threadedly connected, and the drill bit 2 and the connecting member 3 are threadedly connected through the threaded rod 5 and the threaded barrel 4.

[0028] Because the drill bit 2 and the connecting piece 3 are threadedly connected through the threaded barrel 4, the drill bit can be quickly disassembled and replaced. Since the connecting piece 3 and the drill rod 1 are slidingly connected through the protective sleeve 15, drill cuttings and impurities can be prevented from affecting the operation of the cache structure, thereby ensuring the normal drilling operation of the drill bit.

[0029] When the present invention is in use, since the drill bit 2 and the connecting member 3 are threadedly connected through the threaded barrel 4, the drill bit 2 is more firmly connected to the connecting member 3 when working. When the drill bit is drilling rock, since the connecting member 3 is slidingly connected to the drill rod 1 through the protective sleeve 15, it can effectively prevent the drill chips and cutting fluid residue generated during drilling from affecting the normal operation of the cache structure. At the same time, when the drill bit 2 starts to work, since the first spring 9 is fixedly connected to the mounting block 16, the mounting block 16 is fixedly connected to the connecting member 3, and the first spring 9 is fixedly connected to the drill rod 1, the first spring 9 buffers the connecting member 3. Therefore, since the fixed rod 13 is slidingly connected to the sliding rod 12, and the fixed rod 13 is fixedly connected to the second spring 14, when the drill bit 2 squeezes the connecting member 3, it can undergo appropriate deformation under impact to absorb energy, thereby providing a stable buffering effect.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An oil well drill bit with a buffer structure, comprising a connecting piece (3), characterized in that: The connecting member (3) is rotatably connected to a rotating shaft (6) on the outside, the rotating shaft (6) is fixedly connected to a rotor (7) on the outside, the rotor (7) is rotatably connected to a crank (8) on the outside, the crank (8) is rotatably connected to a hanging ear (10) on the outside, the hanging ear (10) is fixedly connected to a sliding rod (12) on the outside, the sliding rod (12) is slidably connected to a drill rod (1) on the outside, the drill rod (1) is fixedly connected to a first spring (9) on the outside, the drill rod (1) is slidably connected to a first telescopic rod (17) on the outside, the drill rod (1) is fixedly connected to a fixed rod (13) on the outside, the fixed rod (13) is fixedly connected to a second spring (14) on the outside, and the fixed rod (13) and the sliding rod (12) are slidably connected to each other; The drill rod (1) is slidably connected to the connecting piece (3), and a drill bit (2) is externally connected to the connecting piece (3).

2. The oil well drill bit with a buffer structure according to claim 1, characterized in that: The connecting member (3) is fixedly connected to a mounting block (16) on the outside, the mounting block (16) is rotatably connected to a rotating shaft (6) on the outside, and the rotating shaft (6) and the connecting member (3) are rotatably connected via the mounting block (16).

3. The oil well drill bit with a buffer structure according to claim 1, characterized in that: The outside of the drill rod (1) is fixedly connected to a sliding sleeve (11), the outside of the sliding sleeve (11) is slidably connected to a sliding rod (12), and the sliding rod (12) and the drill rod (1) are slidably connected via the sliding sleeve (11).

4. The oil well drill bit with a buffer structure according to claim 1, characterized in that: The drill rod (1) is fixedly connected to a protective sleeve (15) on the outside, the protective sleeve (15) is slidably connected to a connecting piece (3) on the outside, and the connecting piece (3) and the drill rod (1) are slidably connected via the protective sleeve (15).

5. The oil well drill bit with a buffer structure according to claim 1, characterized in that: The connecting member (3) is provided with a threaded barrel (4) on the outside, the drill bit (2) is fixedly connected with a threaded rod (5) on the outside, the threaded rod (5) and the threaded barrel (4) are threadedly connected, and the drill bit (2) and the connecting member (3) are threadedly connected via the threaded rod (5) and the threaded barrel (4).

6. The oil well drill bit with a buffer structure according to claim 1, characterized in that: The drill rod (1) is fixedly connected to a second telescopic rod (18) on the outside, the second telescopic rod (18) is slidably connected to a first telescopic rod (17) on the outside, and the drill rod (1) and the first telescopic rod (17) are slidably connected via the second telescopic rod (18).

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