Single-wing drill bit bearing seal structure

Abstract

The utility model discloses a single wing drill bit bearing sealing structure concretely relates to single wing drill bit bearing sealing technical field, including inside rotary axle, the bearing sealing protection device is arranged to inside rotary axle outer wall, the bearing sealing protection device includes: rotation protection subassembly and silica gel sealing protection subassembly, silica gel sealing protection subassembly sets up in rotation protection subassembly outer wall, rotation protection subassembly sets up in inside rotary axle outer wall. The utility model discloses a single wing drill bit bearing sealing structure, compares with prior art, when the silica gel seal cover of outside rotary axle and the silica gel protective cover of inside rotary axle need to be replaced after long -term use, only need to carry out simple cutting to complete the replacement and dismounting work, and the silica gel seal cover of outside rotary axle and the silica gel protective cover of inside rotary axle are lower in manufacturing cost, and the difficulty of installation and dismounting is smaller, and the complexity is lower, greatly improve the practicability and convenient to use of whole device, and simultaneously reduce the sealing use cost of whole device.

Description

Technical Field

[0001] This utility model relates to the field of single-wing drill bit bearing sealing technology, and more specifically, to a single-wing drill bit bearing sealing structure. Background Technology

[0002] With the rapid development of modern oil and gas drilling technology, the requirements for engineering construction quality and operational progress are constantly increasing, placing higher demands on roller cone drill bits. The service life of a roller cone drill bit primarily depends on the stability and reliability of the bearing system under high drilling pressure and high rotational speed. The key to the operation of this bearing system lies in the stability, reliability, and durability of its bearing sealing device. Currently, roller cone drill bit bearing seals are mainly metal seals and ordinary rubber seals. Metal-sealed bearings offer high stability and reliability, but are difficult and costly to manufacture. Ordinary rubber-sealed bearings are simple to manufacture, costing less than one-twentieth the cost of metal-ring combined metal-sealed bearings, resulting in very low manufacturing costs. However, their service life is shorter than that of metal-sealed bearings in roller cone drills. In harsh working environments, ordinary rubber-sealed bearings are inferior to metal-sealed bearings. Therefore, there is a lack of a sealing structure that is both low-cost and has a long service life. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a single-wing drill bit bearing sealing structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a single-wing drill bit bearing sealing structure, including an inner rotating shaft, wherein a bearing sealing protection device is provided on the outer wall of the inner rotating shaft, the bearing sealing protection device including: a rotation protection component and a silicone sealing protection component, wherein the silicone sealing protection component is disposed on the outer wall of the rotation protection component, and the rotation protection component is disposed on the outer wall of the inner rotating shaft.

[0005] In a preferred embodiment, the rotation protection assembly includes: an outer rotating shaft, a rotating inner groove, an inner protective isolation sealing cover, a positioning and docking rotating shaft block, and rotating ball bearings. The rotating ball bearings are disposed on the outer wall of the inner rotating shaft and are rotatably installed inside the rotating inner groove.

[0006] In a preferred embodiment, the silicone sealing and protection assembly includes: an outer rotating shaft silicone sealing sleeve, an inner rotating shaft silicone protective sleeve, and a rotating mounting groove, wherein the rotating mounting groove is formed inside the outer rotating shaft silicone sealing sleeve and the inner rotating shaft silicone protective sleeve.

[0007] In a preferred embodiment, the inner rotating groove is formed inside the outer rotating shaft, and two sets of inner protective isolation sealing covers are provided, with the outer walls of the two sets of inner protective isolation sealing covers respectively installed inside the front and rear ends of the outer rotating shaft.

[0008] In a preferred embodiment, the outer wall of the positioning and docking rotating shaft block is rotatably docked inside the rotating inner groove, the size of the rotating inner groove is adapted to the size of the rotating rolling ball, and multiple sets of the rotating rolling ball are provided.

[0009] In a preferred embodiment, two sets of rotating mounting slots are provided, and the size of the two sets of rotating mounting slots are respectively adapted to the size of the outer wall of the outer rotating shaft and the inner rotating shaft.

[0010] In a preferred embodiment, the outer rotating shaft silicone sealing sleeve and the inner rotating shaft silicone protective sleeve are rotatably mounted on the outer wall of the inner rotating shaft and the outer rotating shaft, respectively.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] A single-wing drill bit bearing sealing structure, compared with the prior art, can achieve high-temperature and wear-resistant sealing protection for the rotation protection component and its outer wall. When the outer rotating shaft silicone seal sleeve and the inner rotating shaft silicone protective sleeve need to be replaced after long-term use, the replacement and disassembly work can be completed simply by cutting them. Moreover, the outer rotating shaft silicone seal sleeve and the inner rotating shaft silicone protective sleeve have low manufacturing costs and are easy to install and disassemble, with low complexity, which greatly improves the practicality and ease of use of the entire device, and at the same time reduces the sealing cost of the entire device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the bearing sealing and protection device of this utility model.

[0015] Figure 3 This is a schematic diagram of the rotation protection component of this utility model.

[0016] Figure 4 This is a schematic diagram of the silicone sealing and protective component of this utility model.

[0017] The attached figures are labeled as follows: 1. Inner rotating shaft; 2. Bearing sealing and protection device; 21. Rotation protection component; 211. Rotating ball bearing; 212. Positioning and docking rotating shaft block; 213. Outer rotating shaft; 214. Rotation inner groove; 215. Inner protective isolation sealing cover; 22. Silicone sealing and protection component; 221. Outer rotating shaft silicone sealing sleeve; 222. Inner rotating shaft silicone protective sleeve; 223. Rotation mounting groove. Detailed Implementation

[0018] 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.

[0019] As attached Figure 1-4 As shown, this utility model provides a single-wing drill bit bearing sealing structure, including an inner rotating shaft 1. A bearing sealing protection device 2 is provided on the outer wall of the inner rotating shaft 1. The bearing sealing protection device 2 includes a rotation protection component 21 and a silicone sealing protection component 22. The silicone sealing protection component 22 is provided on the outer wall of the rotation protection component 21, and the rotation protection component 21 is provided on the outer wall of the inner rotating shaft 1.

[0020] The rotation protection assembly 21 includes: an outer rotating shaft 213, a rotating inner groove 214, an inner protective isolation sealing cover 215, a positioning and docking rotating shaft block 212, and rotating ball bearings 211. The rotating ball bearings 211 are disposed on the outer wall of the inner rotating shaft 213 and are rotatably installed inside the rotating inner groove 214. The rotating inner groove 214 is located inside the outer rotating shaft 213. Two sets of inner protective isolation sealing covers 215 are provided, and the outer walls of the two sets of inner protective isolation sealing covers 215 are respectively installed inside the front and rear ends of the outer rotating shaft 213. The outer wall of the positioning and docking rotating shaft block 212 is rotatably docked inside the rotating inner groove 214. The size of the rotating inner groove 214 is compatible with the size of the rotating ball bearings 211, and multiple sets of rotating ball bearings 211 are provided.

[0021] The silicone sealing and protective assembly 22 includes: an outer rotating shaft silicone sealing sleeve 221, an inner rotating shaft silicone protective sleeve 222, and a rotating mounting groove 223. The rotating mounting groove 223 is formed inside the outer rotating shaft silicone sealing sleeve 221 and the inner rotating shaft silicone protective sleeve 222. There are two sets of rotating mounting grooves 223, and the size of the two sets of rotating mounting grooves 223 are respectively adapted to the size of the outer wall of the outer rotating shaft 213 and the inner rotating shaft 1. The outer rotating shaft silicone sealing sleeve 221 and the inner rotating shaft silicone protective sleeve 222 can be rotatably installed on the outer wall of the inner rotating shaft 1 and the outer wall of the outer rotating shaft 213.

[0022] The specific implementation method is as follows: When using this utility model, the connection between the rotation protection component 21 and the inner rotation shaft 1 can be sealed and protected by the outer rotation shaft silicone sealing sleeve 221 and the inner rotation shaft silicone protective sleeve 222 installed on the outer wall of the rotation protection component 21. The outer rotation shaft silicone sealing sleeve 221 and the inner rotation shaft silicone protective sleeve 222 are made of high temperature resistant sealing material, which can achieve high temperature and wear resistant sealing and protection for the rotation protection component 21 and the outer wall of the rotation protection component 21. When the outer rotation shaft silicone sealing sleeve 221 and the inner rotation shaft silicone protective sleeve 222 need to be replaced after long-term use, the replacement and disassembly work can be completed by simply cutting them. Moreover, the outer rotation shaft silicone sealing sleeve 221 and the inner rotation shaft silicone protective sleeve 222 have low manufacturing cost, and the installation and disassembly are relatively simple and complex, which greatly improves the practicality and ease of use of the entire device, and at the same time reduces the sealing and use cost of the entire device.

[0023] The working principle of this utility model is as follows: When using this utility model, the connection between the rotation protection component 21 and the inner rotation shaft 1 can be sealed and protected by the outer rotation shaft silicone sealing sleeve 221 and the inner rotation shaft silicone protective sleeve 222 installed on the outer wall of the rotation protection component 21. The outer rotation shaft silicone sealing sleeve 221 and the inner rotation shaft silicone protective sleeve 222 are made of high temperature resistant sealing material, which can achieve high temperature and wear resistant sealing and protection for the rotation protection component 21 and the outer wall of the rotation protection component 21. When the outer rotation shaft silicone sealing sleeve 221 and the inner rotation shaft silicone protective sleeve 222 need to be replaced after long-term use, the replacement and disassembly work can be completed by simply cutting them.

[0024] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0025] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-wing drill bit bearing sealing structure, comprising an inner rotating shaft (1), characterized in that: The outer wall of the inner rotating shaft (1) is provided with a bearing sealing protection device (2); The bearing sealing protection device (2) includes: a rotation protection component (21) and a silicone sealing protection component (22). The silicone sealing protection component (22) is disposed on the outer wall of the rotation protection component (21), and the rotation protection component (21) is disposed on the outer wall of the inner rotating shaft (1).

2. The single-wing drill bit bearing sealing structure according to claim 1, characterized in that: The rotation protection assembly (21) includes: an outer rotation shaft (213), a rotation inner groove (214), an inner protective isolation sealing cover (215), a positioning docking rotation shaft block (212), and a rotation ball (211). The rotation ball (211) is disposed on the outer wall of the inner rotation shaft (1), and the rotation ball (211) is rotatably installed inside the rotation inner groove (214).

3. The single-wing drill bit bearing sealing structure according to claim 2, characterized in that: The silicone sealing and protection assembly (22) includes: an outer rotating shaft silicone sealing sleeve (221), an inner rotating shaft silicone protective sleeve (222), and a rotating mounting groove (223), wherein the rotating mounting groove (223) is formed inside the outer rotating shaft silicone sealing sleeve (221) and the inner rotating shaft silicone protective sleeve (222).

4. The single-wing drill bit bearing sealing structure according to claim 2, characterized in that: The rotating inner groove (214) is opened inside the outer rotating shaft (213). Two sets of inner protective isolation sealing covers (215) are provided, and the outer walls of the two sets of inner protective isolation sealing covers (215) are respectively installed inside the front and rear ends of the outer rotating shaft (213).

5. The single-wing drill bit bearing sealing structure according to claim 2, characterized in that: The outer wall of the positioning and docking rotating shaft block (212) can be rotatably docked inside the rotating inner groove (214). The size of the rotating inner groove (214) is adapted to the size of the rotating ball bearing (211). Multiple sets of the rotating ball bearing (211) are provided.

6. The single-wing drill bit bearing sealing structure according to claim 3, characterized in that: The rotating mounting groove (223) is provided in two sets, and the size of the two sets of rotating mounting grooves (223) is adapted to the size of the outer rotating shaft (213) and the outer wall of the inner rotating shaft (1), respectively.

7. The single-wing drill bit bearing sealing structure according to claim 3, characterized in that: The outer rotating shaft silicone sealing sleeve (221) and the inner rotating shaft silicone protective sleeve (222) are rotatably installed on the outer wall of the inner rotating shaft (1) and the outer wall of the outer rotating shaft (213).

Images