CN221194962U - Sealing structure of cone engineering piece - Google Patents
Sealing structure of cone engineering piece Download PDFInfo
- Publication number
- CN221194962U CN221194962U CN202322741452.2U CN202322741452U CN221194962U CN 221194962 U CN221194962 U CN 221194962U CN 202322741452 U CN202322741452 U CN 202322741452U CN 221194962 U CN221194962 U CN 221194962U
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- CN
- China
- Prior art keywords
- cone
- bit leg
- bearing
- sealing
- bit
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- 238000007789 sealing Methods 0.000 title claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000428 dust Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005065 mining Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model provides a sealing structure of a cone engineering piece, which comprises a bit leg and a cone, wherein the bit leg is rotationally connected with the cone through a bit leg shaft, a bearing sealing ring is arranged at an inner hole port of the cone, and the bearing sealing ring is matched with the bit leg shaft to form a bearing cavity; also comprises a sealing plate which is fixedly arranged at one end of the cone close to the bit leg, a circle of hairbrushes are arranged on one side of the sealing plate, which is close to the bit leg, and the hairbrushes are spirally and radially arranged; during construction, the sealing plate rotates along with the roller cone, dust particles are prevented from entering the gap between the roller cone and the bit leg through the rotation of the brush between the sealing plate and the bit leg, water vapor is prevented from entering the bearing cavity through the bearing sealing ring between the roller cone and the bit leg shaft, the dustproof and waterproof performance of the roller cone is improved, and the service life of the roller cone engineering sheet is prolonged.
Description
Technical Field
The utility model relates to the technical field of oil and gas well engineering and mining, in particular to a sealing structure of a cone engineering sheet.
Background
The cone bit is the most widely used drilling bit, and cutting teeth alternately contact the bottom of a well when the cone bit works, so that the contact area of the cutting teeth is small, the specific pressure is high, and the cone bit is easy to penetrate into a stratum; the total length of the working edge is large, so that abrasion is relatively reduced. Roller cone drill bits are capable of accommodating a wide variety of formations ranging from soft to hard.
At present, in order to prolong the service life of the mining roller bit, the bearings of the roller bit are required to be lubricated, and good lubrication is required to be kept, so that water and impurities are prevented from entering the inner cavities of the bearings, and the quality of the lubricating oil is reduced and deteriorated. In order to prevent moisture and impurities from entering the inner cavity of the bearing, the mining roller bit is sealed, but the mining roller bit is actually a roller bit with a semi-sealing structure. In order to prevent dust in mining and improve the service life of the roller bit, water is added to remove dust in the drilling process. Moreover, groundwater is often encountered during mining to create water holes. It is these states that water gets into the bearing inner chamber through the filler pipe, causes lubricating oil to deteriorate, influences bearing lubrication, accelerates wearing and tearing and the heating of bearing, causes the inefficacy of bearing seal circle, reduces roller bit life.
Disclosure of utility model
The utility model discloses a sealing structure of a cone engineering piece, which aims to solve the problem that in the background technology, a cone bearing is easy to be worn by water inlet, so that the service life of a cone bit is reduced.
In order to solve the technical problems, the following technical scheme is proposed:
A sealing structure of a cone engineering piece comprises a bit leg and a cone, wherein the bit leg is rotationally connected with the cone through a bit leg shaft, a bearing sealing ring is arranged at an inner hole port of the cone, and the bearing sealing ring is matched with the bit leg shaft to form a bearing cavity; also comprises a sealing plate which is fixedly arranged at one end of the cone close to the bit leg, one side of the sealing plate close to the bit leg is provided with a circle of hairbrush, and the hairbrushes are spirally and radially arranged, one end of each hairbrush is fixedly connected with the corresponding sealing plate, and the other end of each hairbrush slides on the surface of the corresponding bit leg.
One side of the sealing plate, which is close to the roller cone, is provided with an installation groove, the bearing sealing ring is arranged in the installation groove, and two sides of the bearing sealing ring are respectively abutted with the roller cone and the sealing plate.
Preferably, the sealing plate is detachably connected with the cone, and a first rubber pad is arranged between the sealing plate and the cone for preventing water and enhancing tightness between the sealing plate and the cone.
Preferably, the root of the bit leg shaft is provided with a wear-resistant plate which is detachably connected with the bit leg, and a second rubber pad is arranged between the wear-resistant plate and the bit leg for preventing water and enhancing tightness between the wear-resistant plate and the bit leg.
Preferably, the bearing pin further comprises a positioning steel ball, wherein the positioning steel ball is encapsulated between the cone and the spherical groove of the bit leg and is used for preventing the cone from moving along the axial direction of the bit leg shaft.
Preferably, the bearing seal is a labyrinth seal.
The utility model has the beneficial effects that: the scheme provides a sealing structure of a cone engineering piece, which comprises a bit leg and a cone, wherein the bit leg is rotationally connected with the cone through a bit leg shaft, a bearing sealing ring is arranged at an inner hole port of the cone, and the bearing sealing ring is matched with the bit leg shaft to form a bearing cavity; also comprises a sealing plate which is fixedly arranged at one end of the cone close to the bit leg, a circle of hairbrushes are arranged on one side of the sealing plate, which is close to the bit leg, and the hairbrushes are spirally and radially arranged; during construction, the sealing plate rotates along with the roller cone, dust particles are prevented from entering the gap between the roller cone and the bit leg through the rotation of the brush between the sealing plate and the bit leg, water vapor is prevented from entering the bearing cavity through the bearing sealing ring between the roller cone and the bit leg shaft, the dustproof and waterproof performance of the roller cone is improved, and the service life of the roller cone engineering sheet is prolonged.
Drawings
FIG. 1 is a side cross-sectional view of the present utility model;
Fig. 2 is a top view of the seal of the present utility model.
The main reference numerals are as follows: 1. a roller cone; 2. leg portions; 3. a bit leg shaft; 4. a sealing plate; 5. a bearing seal ring; 6. a wear plate; 7. a brush.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The following detailed description of the embodiments of the utility model, provided in the accompanying drawings, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model relates to a sealing structure of a cone engineering piece, which comprises a bit leg 2 and a cone 1, wherein the bit leg 2 is rotationally connected with the cone 1 through a bit leg shaft 3, a bearing sealing ring 5 is arranged at an inner hole port of the cone 1, and the bearing sealing ring 5 is matched with the bit leg shaft 3 to form a bearing cavity; the cone comprises a cone body 2, a cone body 1 and a cone body 2, and is characterized by further comprising a sealing plate 4, wherein the sealing plate 4 is fixedly arranged at one end of the cone body 1, which is close to the cone body 2, one side of the sealing plate 4, which is close to the cone body 2, is provided with a circle of hairbrushes 7, and the hairbrushes 7 are spirally and radially arranged. When the cone engineering piece works, the sealing plate 4 rotates along with the cone 1, the brush 7 also rotates along with the cone 1, a line for preventing dust and sand particles is constructed by the rotation of the brush 7 at the outer edge of the circumference of the bottom of the cone 1, and a small amount of dust and sand particles inevitably entering the brush 7 can be discharged along the spiral line formed by the brush 7 when the brush 7 rotates due to the fact that the brush 7 is in a spiral radial shape, so that a better dustproof effect is achieved.
Specifically, the sealing plate 4 is detachably connected with the roller cone 1, so that the manufacturing cost of the roller cone 1 can be reduced, and only the production line of the sealing plate 4 is additionally increased, and the difficulty in installing or replacing the brush 7 on the sealing plate 4 is obviously far less than that in directly installing or replacing the brush 7 on the roller cone 1 because the volume of the sealing plate 4 is far less than that of the roller cone 1, and the first rubber pad is arranged between the sealing plate 4 and the roller cone 1 and used for preventing water from entering the bearing cavity through the gap between the roller cone 1 and the sealing plate 4.
Specifically, the sealing plate 4 is close to one side of cone 1 and is equipped with the mounting groove, and bearing seal circle 5 is arranged in the mounting groove, and the both sides of bearing seal circle 5 respectively with cone 1 and sealing plate 4 butt, not only make the installation degree of difficulty greatly reduced of bearing seal circle 5, guaranteed the waterproof performance in bearing chamber again.
Specifically, the root of the bit leg shaft 3 is provided with a wear-resistant plate 6, the wear-resistant plate 6 is detachably connected with the bit leg 2 to prevent the bit leg 2 from wearing under the friction of dust particles mixed by the brush 7, and a second rubber pad is arranged between the wear-resistant plate 6 and the bit leg 2 to prevent water vapor and dust from entering a gap between the bit leg 2 and the wear-resistant plate 6.
Specifically, the cutter bit further comprises a positioning steel ball, wherein the positioning steel ball is packaged between the spherical grooves of the cutter bit 1 and the bit leg 2 and is used for preventing the cutter bit 1 from moving along the axial direction of the bit leg shaft 3 and ensuring the stability of cutter bit operation.
Specifically, the bearing sealing ring 5 is a labyrinth sealing ring, takes fluororubber as a material, has good waterproof and dustproof performances, is high-temperature resistant, grease resistant and chemical corrosion resistant, and is suitable for severe industrial environments.
The above disclosure is only a few specific embodiments of the present utility model, but the present utility model is not limited thereto, and any changes that can be thought by those skilled in the art should fall within the protection scope of the present utility model.
Claims (6)
1. A sealing structure of a cone engineering piece comprises a bit leg and a cone, wherein the bit leg is rotationally connected with the cone through a bit leg shaft, a bearing sealing ring is arranged at an inner hole port of the cone, and the bearing sealing ring is matched with the bit leg shaft to form a bearing cavity; the method is characterized in that: also comprises a sealing plate which is fixedly arranged at one end of the cone close to the bit leg, one side of the sealing plate close to the bit leg is provided with a circle of hairbrush, and the hairbrushes are spirally and radially arranged, one end of each hairbrush is fixedly connected with the corresponding sealing plate, and the other end of each hairbrush slides on the surface of the corresponding bit leg.
2. The seal structure of claim 1, wherein the seal plate is detachably connected to the cone, and a first rubber gasket is disposed between the seal plate and the cone for enhancing tightness between the seal plate and the cone.
3. The sealing structure of claim 1, wherein the sealing plate is provided with a mounting groove on one side thereof adjacent to the cone, the bearing seal ring is disposed in the mounting groove, and two sides of the bearing seal ring are respectively abutted against the cone and the sealing plate.
4. The seal structure of claim 1, wherein a wear plate is provided at a root of the leg shaft, the wear plate is detachably connected to the leg, and a second rubber pad is provided between the wear plate and the leg for enhancing tightness between the wear plate and the leg.
5. The sealing structure of claim 1, further comprising a positioning steel ball, wherein a ball groove is formed between the cone and the bit leg, and the positioning steel ball is encapsulated in the ball groove of the cone and the bit leg for preventing the cone from moving along the axial direction of the bit leg.
6. The sealing structure of a cone engineering sheet according to claim 1, wherein: the bearing sealing ring is a labyrinth sealing ring.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221194962U true CN221194962U (en) | 2024-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |