Drill pipe tong head with lubricating structure

Abstract

The utility model provides a kind of drill pipe tong tong head with lubricating structure, it is related to petroleum drilling technical field, including e plate frame, floating body and oiling bolt, e plate frame is installed in the inboard of floating body, rotates around the axis of floating body, and contact with the inboard surface of floating body, form cylindrical surface cooperation;E plate frame is equipped with oiling passage A and multiple oil holes, oiling passage A is used for injecting lubricating oil, each oil hole is communicated with oiling passage A, the lubricating oil flowing in oil hole is used for lubricating the mating contact surface with e plate frame respectively.The utility model realizes the fixed connection of e plate frame and brake disc, can add lubricating oil in time and close oiling passage A, so that dirt does not enter mating contact surface, thereby solve the problem of wear aggravation and influence normal make and break operation caused by drill pipe tong tong head unable to lubricate.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling technology, and more specifically, to a drill pipe tong tong head with a lubrication structure. Background Technology

[0002] Existing drill pipe power tongs are widely used in the oil drilling field. However, due to the assembly structure of the jaw plate holder, brake disc, and floating body, the jaw plate holder rotates within the floating body of the drill pipe power tong during operation. The relative movement of the mating contact surfaces between the jaw plate holder and the floating body prevents timely replenishment of lubricant, leading to dry friction over time. This structure not only makes relative rotation difficult but also accelerates wear, causing dimensional changes that affect mating accuracy, hindering normal threading and unthreading operations, and reducing the service life of the drill pipe power tong. Utility Model Content

[0003] The purpose of this utility model is to provide a drill pipe pliers head with a lubrication structure to solve one or more problems mentioned in the background art.

[0004] To achieve the above objectives, this application provides a drill pipe tong tong head with a lubrication structure, including a jaw plate frame, a floating body, and a lubrication bolt. The jaw plate frame is installed on the inner side of the floating body, rotates around the axis of the floating body, and contacts the inner side of the floating body to form a cylindrical surface fit.

[0005] The jaw plate frame is provided with an oiling channel A and multiple oil holes. The oiling channel A is used to inject lubricating oil, and each oil hole is connected to the oiling channel A. The lubricating oil flowing out of the oil holes is used to lubricate the mating contact surfaces with the jaw plate frame.

[0006] As a preferred embodiment, the drill tong tong head also includes a brake disc, which is fixedly mounted on the jaw plate frame by a lubrication bolt and a lubrication channel A. The brake disc and the jaw plate frame rotate synchronously.

[0007] As a preferred embodiment, the drill tong tong head also includes a flange and fixing bolts. The flange is fixed to the floating body by the fixing bolts and presses against the jaw plate frame from the side, restricting the axial movement of the jaw plate frame. The flange is in contact with the side of the jaw plate frame.

[0008] As a preferred embodiment, the oil hole includes an oil hole B provided on the jaw plate frame, which is connected to the oil filling channel A. The lubricating oil flowing out of the oil hole B is used to lubricate the mating contact surface between the flange and the jaw plate frame.

[0009] As a preferred embodiment, the oil hole also includes an oil hole C provided on the jaw plate frame, which is connected to the oiling channel A. The lubricating oil flowing out of the oil hole C is used to lubricate the mating contact surface between the jaw plate frame and the floating body.

[0010] As a preferred and feasible method, the refueling bolt is threadedly connected to the refueling channel A.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a drill pipe tong tong head with a lubrication structure. This ingeniously designed lubrication structure is simple, convenient, safe, and reliable to operate. When lubrication of the drill pipe power tong tong head is required, the lubrication bolt is loosened, allowing lubricating oil to be injected into lubrication channel A. The lubricating oil flows out from oil holes B and C, lubricating the mating contact surfaces of the flange and jaw plate frame, as well as the mating contact surfaces of the jaw plate frame and the floating body. This structure not only secures the jaw plate frame to the brake disc but also allows for timely addition of lubricating oil and closes lubrication channel A, preventing contaminants from entering the mating contact surfaces. This solves the problem of accelerated wear and disruption of normal threading and unthreading operations caused by the lack of lubrication in the drill pipe tong tong head. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a drill pipe pliers head with a lubrication structure provided by this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be noted that all uses of "first", "second", "third" and "fourth" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first", "second", "third" and "fourth" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0016] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0017] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Please see Figure 1 As shown, this utility model provides a drill pipe plier head with a lubrication structure, aiming to provide a lubrication structure for the drill pipe plier head. The drill pipe plier head includes a jaw plate frame 1, an oiling bolt 2, a brake disc 3, a flange 4, and a floating body 5. The jaw plate frame 1 is installed inside the floating body 5, rotates around the axis of the floating body 5, and contacts the inner surface of the floating body 5 to form a cylindrical surface fit. The jaw plate frame 1 has an oiling channel A and multiple oil holes. The oiling channel A is used to inject lubricating oil, and each oil hole is connected to the oiling channel A. The lubricating oil flowing out of the oil holes is used to lubricate the mating contact surfaces with the jaw plate frame 1.

[0019] The brake disc 3 is fixedly mounted on the jaw plate frame 1 via the engagement of the oiling bolt 2 and the oiling channel A. The brake disc 3 and the jaw plate frame 1 rotate synchronously. In this application, the oiling bolt and the oiling channel A are connected by a threaded structure.

[0020] Furthermore, the drill pipe tong head also includes a flange 4 and fixing bolts. The flange 4 is fixed to the floating body 5 by the fixing bolts and presses against the jaw plate frame 1 from the side, restricting the axial movement of the jaw plate frame 1. The flange 4 is in contact with the side of the jaw plate frame 1.

[0021] It should be noted that the aforementioned oil holes include oil hole B and oil hole C provided on the jaw plate frame 1. Oil hole B is connected to the oil filling channel A, and the lubricating oil flowing out of oil hole B is used to lubricate the mating contact surface between flange 4 and jaw plate frame 1. Oil hole C is connected to the oil filling channel A, and the lubricating oil flowing out of oil hole C is used to lubricate the mating contact surface between jaw plate frame 1 and floating body 5.

[0022] Working Principle: This structure is simple and easy to operate. When lubrication of the drill pipe power tong head is required, unscrew the oiling bolt 2 to expose the oiling channel A. Lubricating oil can then be injected into the oiling channel A. The lubricating oil can flow out from oil holes B and C. The lubricating oil flowing out of oil hole B lubricates the mating contact surface between flange 4 and jaw plate frame 1; the lubricating oil flowing out of oil hole C lubricates the mating contact surface between jaw plate frame 1 and floating body 5. After lubrication, tighten the oiling bolt 2 back onto the jaw plate frame. This lubrication structure ensures a fixed connection between the jaw plate frame and the brake disc, allows for timely addition of lubricating oil, and closes the oiling channel A, preventing contaminants from entering the mating contact surfaces between the jaw plate frame, flange, and floating body.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drill pipe tong tong head with a lubrication structure, characterized in that, Includes a jaw plate frame (1), a floating body (5), and a lubrication bolt (2). The jaw plate frame (1) is installed on the inner side of the floating body (5), rotates around the axis of the floating body (5), and contacts the inner side of the floating body (5) to form a cylindrical surface fit. The jaw plate frame (1) is provided with an oiling channel A and multiple oil holes. The oiling channel A is used to inject lubricating oil. Each oil hole is connected to the oiling channel A. The lubricating oil flowing out of the oil hole is used to lubricate the mating contact surface with the jaw plate frame (1).

2. The drill pipe tongs with a lubrication structure according to claim 1, characterized in that: The drill tong head also includes a brake disc (3), which is fixedly mounted on the jaw plate frame (1) by means of a lubrication bolt (2) and a lubrication channel A. The brake disc (3) and the jaw plate frame (1) rotate synchronously.

3. A drill pipe tong with a lubrication structure according to claim 2, characterized in that: The drill pipe tong head also includes a flange (4) and fixing bolts. The flange (4) is fixed to the floating body (5) by the fixing bolts and presses the jaw plate frame (1) on the side, restricting the axial movement of the jaw plate frame (1). The flange (4) is in contact with the side of the jaw plate frame (1).

4. A drill pipe tong with a lubrication structure according to claim 3, characterized in that: The oil hole includes an oil hole B provided on the jaw plate frame (1). The oil hole B is connected to the oil filling channel A. The lubricating oil flowing out of the oil hole B is used to lubricate the mating contact surface between the flange (4) and the jaw plate frame (1).

5. A drill pipe tong with a lubrication structure according to claim 3, characterized in that: The oil hole also includes an oil hole C provided on the jaw plate frame (1). The oil hole C is connected to the oiling channel A. The lubricating oil flowing out of the oil hole C is used to lubricate the mating contact surface between the jaw plate frame (1) and the floating body (5).

6. A drill pipe tong with a lubrication structure according to claim 1, characterized in that: The refueling bolt is threadedly connected to the refueling channel A.

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