CN220705624U - Roller cone engineering piece with rubber capsule type oiling pressure maintaining device - Google Patents
Roller cone engineering piece with rubber capsule type oiling pressure maintaining device Download PDFInfo
- Publication number
- CN220705624U CN220705624U CN202322471007.9U CN202322471007U CN220705624U CN 220705624 U CN220705624 U CN 220705624U CN 202322471007 U CN202322471007 U CN 202322471007U CN 220705624 U CN220705624 U CN 220705624U
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- Prior art keywords
- cone
- rubber
- leg
- rubber capsule
- engineering
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- 239000002775 capsule Substances 0.000 title claims abstract description 33
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- 239000004519 grease Substances 0.000 claims abstract description 13
- 230000001050 lubricating effect Effects 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 44
- 238000005461 lubrication Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010687 lubricating oil Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides a cone engineering piece with a rubber capsule type oiling pressure maintaining device, wherein a rubber capsule is fixed on a bit leg of the engineering piece through a gland, when the engineering piece is oiled, the rubber capsule is opened by oiling pressure, oiling pressure is completed, an oiling hole is sealed, the opened elasticity of the rubber capsule is used for maintaining the pressure when oiling, and the cone engineering piece has the characteristics of simple structure, high integration level, simplicity and rapidness in installation and the like, and the cone engineering piece can be obviously improved in service life and production efficiency by supplementing lubricating grease to a bearing cavity by means of the elastic force of the rubber capsule, so that the cone engineering piece bearing can be fully lubricated, the labor cost of production can be reduced, and the customer satisfaction can be improved.
Description
Technical Field
The utility model relates to the technical field of roller bit, in particular to a roller engineering piece with a rubber capsule type oiling pressure maintaining device.
Background
The roller bit is a tool for breaking rock in the crust, most of roller bits used in oil and gas drilling and other mining drilling are in a sealed mode, the sealed roller bit mainly comprises a bit leg, a bit leg shaft, a roller cone hole, a locking element and a sealing piece, the service life of the roller bit is the service life of a bearing system, namely the service life of the bearing and the sealing service life of the bearing in oil and gas drilling, the service life of the bearing depends on the service life of the sealing to a great extent, the bearing cavity is directly sealed after the conventional roller engineering piece is usually filled with grease, grease in the bearing is leaked through the sealing part due to working loss or pressure fluctuation during working, the bearing is in a state of insufficient lubrication or dry grinding due to no compensation of the grease in the bearing cavity, the service life of the bearing is rapidly reduced, the service life of the roller bit is further increased and damaged by sealing, and the service life of the roller bit is also reduced due to sealing damage and cone accident may be caused by roller cone accident.
Disclosure of Invention
The utility model discloses a cone engineering piece with a rubber capsule type oiling pressure maintaining device, which solves the problem that the bearing cavity grease in the background technology is not supplemented with subsequent grease after the bearing cavity grease is used up, and the service lives of a bearing pin and the engineering piece are shortened.
In order to solve the technical problems, the following technical scheme is proposed: a cone engineering piece with a rubber capsule type oiling pressure maintaining device comprises a cone and a cone leg, wherein a cone leg shaft is arranged at one end of the cone leg, the cone is sleeved on the cone leg shaft, a lubrication oil duct is arranged in the cone leg, a counter bore is formed at one end of the cone leg far away from the cone leg shaft, one end of the lubrication oil duct is communicated with the counter bore, and the other end of the lubrication oil duct extends to the center of the cone leg shaft; including rubber bag and gland, the rubber bag comprises deformation end and installation end, installation end block is in the counter bore, gland screw in counter bore and leg spiro union, and the gland exerts pressure to the installation end, make the rubber bag installation end by leg and gland centre gripping, deformation end stretches into in the lubrication duct, deformation end terminal surface and lubricating oil contact, deformation end inside is equipped with two spindle-shaped cavitys, be formed with three annular cavity between the inner wall of deformation end and lubrication duct, triangle-shaped is personally submitted in the transversal of annular cavity, required space when spindle-shaped cavity and annular cavity provide rubber bag deformation, the laminating of rubber bag deformation end tail end side and lubrication duct inner wall.
Preferably, the side surface of the rubber bag is provided with a rectangular annular groove, a sealing ring is arranged in the rectangular annular groove, and the sealing ring is embedded in the rectangular annular groove.
Preferably, the end face of the lower end of the rubber bag is fixedly provided with a metal plate, one side of the metal plate is attached to the end face of the lower end of the rubber bag, and the other side of the metal plate is contacted with lubricating grease.
Preferably, the back of the bit leg is provided with an oil filling hole which is communicated with a lubricating oil duct, and the oil filling hole is sealed through a screw plug after oil filling.
Preferably, the bearing further comprises a positioning steel ball, wherein the positioning steel ball is arranged between the cone and the bit leg shaft, and the cone and the bit leg are axially locked through the positioning steel ball.
Specifically, a branch oil passage is also arranged in the bit leg, and the oil passage branch is communicated with the lubricating oil passage and the positioning steel ball.
The utility model has the beneficial effects that: the cone engineering piece with the rubber capsule type oiling pressure maintaining device is provided, the rubber capsule is fixed on the bit leg of the engineering piece through the gland, when the engineering piece is in oiling, the oiling pressure of the engineering piece is used for expanding the rubber capsule, the oiling pressure is completed, the oil filling hole is sealed, the expanded elasticity of the rubber capsule is used for maintaining the oiling pressure, the cone engineering piece has the characteristics of simple structure, high integration level, simplicity and rapidness in installation and the like, the bearing cavity is supplemented with lubricating grease by the aid of the elastic force of the rubber capsule, the full lubrication of the cone engineering piece bearing is ensured, the service life and the production efficiency of the cone engineering piece can be obviously improved, the production labor cost is reduced, and the customer satisfaction is improved.
Drawings
FIG. 1 is an overall appearance of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
figure 3 is a cross-sectional view of a rubber capsule of the present utility model.
The main reference numerals are as follows: 1. leg portions; 2. rubber capsules; 21. a seal ring; 22. a metal plate; 3. a gland; 4. an oil filling hole; 5. and (5) a screw plug.
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.
Referring to fig. 1 to 3, the present utility model relates to a cone engineering piece with a rubber capsule type oil injection pressure maintaining device, which comprises a cone and a cone leg 1, wherein the cone leg 1 is provided with a cone leg shaft, the cone is sleeved on the cone leg shaft, the cone leg 1 is provided with a lubrication oil duct, a pressure maintaining device is arranged in a top opening of the lubrication oil duct, a counter bore is arranged in the top opening of the lubrication oil duct, the pressure maintaining device comprises a rubber capsule 2 and a gland 3, one end of the rubber capsule 2 is arranged in the lubrication oil duct, the other end of the rubber capsule is arranged in the counter bore, the gland 3 is screwed into the counter bore and is in threaded connection with the cone leg 1 to press the rubber capsule 2, two cavities are arranged in the rubber capsule 2, three annular cavities are arranged between the rubber capsule 2 and the inner wall of the lubrication oil duct, the diameter of the end face of the rubber capsule 2 is the same as the diameter of the lubrication oil duct, when the engineering piece is injected with oil, the oil injection pressure extrudes the rubber capsule 2 to one side, the oil injection pressure is completed, the lubrication oil hole is sealed, the elasticity of the rubber capsule 2 is opened, the pressure is maintained, the pressure is increased, the bearing is obtained when the cone engineering piece works, the bearing is used, and the service life of the cone engineering piece is improved.
Specifically, the cavity inside the rubber bag 2 is spindle-shaped, the cross section of the annular cavity is triangular, the spindle-shaped cavity inside the annular cavity can be compressed under the oiling pressure, so that the rubber bag 2 generates more deformation under the oiling pressure, the working time of the rubber bag 2 is prolonged, and the triangular annular cavity can give the rubber bag 2 enough deformation space.
Specifically, the side of the rubber bag 2 is provided with a rectangular annular groove, and a sealing ring 21 is arranged in the rectangular annular groove, so that the sealing performance between the rubber bag 2 and the lubricating oil duct is further enhanced.
Specifically, the end face of the rubber bag 2 far away from one end of the gland 3 is fixedly provided with a metal plate 22, so that deformation of the end face of the rubber bag 2 due to uneven stress is prevented, and lubricating grease is prevented from leaking into the deformation space of the rubber bag.
Specifically, an oil filling hole 4 is formed in the back of the bit leg 1, the oil filling hole 4 is communicated with a lubricating oil duct, and the oil filling hole 4 is sealed and welded through a screw plug 5 after oil filling; preventing grease from escaping from the oil filler hole 4.
Specifically, the device also comprises a positioning steel ball which is arranged between the cone and the bit leg shaft and used for axially locking the cone and the bit leg shaft, and the cone and the bit leg 1 are prevented from falling off under the condition that the rotation work of the cone is not influenced.
Specifically, a branch oil passage is further arranged in the bit leg, the oil passage branch is communicated with the lubricating oil passage and the positioning steel ball, and lubricating grease flows into contact points and contact surfaces among the positioning steel ball, the cone and the bit leg shaft through the branch oil passage, so that abrasion of the cone, the positioning steel ball and the bit leg shaft is reduced.
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 cone engineering piece with a rubber capsule type oiling pressure maintaining device comprises a cone and a cone leg, wherein a cone leg shaft is arranged at one end of the cone leg, the cone is sleeved on the cone leg shaft, a lubrication oil duct is arranged in the cone leg, a counter bore is formed at one end of the cone leg far away from the cone leg shaft, one end of the lubrication oil duct is communicated with the counter bore, and the other end of the lubrication oil duct extends to the center of the cone leg shaft; the device is characterized by comprising a rubber bag and a gland, wherein the rubber bag consists of a deformation end and a mounting end, the mounting end is clamped in a counter bore, the gland is screwed into the counter bore and is in threaded connection with a bit leg, the gland applies pressure to the mounting end, the mounting end of the rubber bag is clamped by the bit leg and the gland, the deformation end stretches into a lubricating oil duct, the end face of the deformation end is contacted with lubricating oil, two fusiform cavities are arranged inside the deformation end, three annular cavities are formed between the deformation end and the inner wall of the lubricating oil duct, the cross section of each annular cavity is triangular, the fusiform cavities and the annular cavities provide spaces required by deformation of the rubber bag, and the tail end side face of the deformation end of the rubber bag is attached to the inner wall of the lubricating oil duct.
2. The cone engineering sheet with rubber-capsule-type oil injection pressure maintaining device according to claim 1, wherein the side surface of the rubber capsule is provided with a rectangular annular groove, a sealing ring is arranged in the rectangular annular groove, and the sealing ring is embedded in the rectangular annular groove.
3. The roller engineering sheet with rubber capsule type oiling pressure maintaining device according to claim 2, wherein a metal plate is fixedly arranged on the end face of the lower end of the rubber capsule, one side of the metal plate is attached to the end face of the lower end of the rubber capsule, and the other side of the metal plate is in contact with lubricating grease.
4. The cone engineering piece with the rubber-capsule-type oil injection pressure maintaining device according to claim 1, wherein the back of the bit leg is provided with an oil injection hole, the oil injection hole is communicated with a lubricating oil duct, and the oil injection hole is sealed through a screw plug after oil injection is completed.
5. The cone engineering sheet with rubber-capsule-type oil injection pressure maintaining device according to claim 1, further comprising a positioning steel ball, wherein the positioning steel ball is arranged between the cone and the bit leg shaft, and the cone and the bit leg are axially locked by the positioning steel ball.
6. The cone engineering piece with the rubber capsule type oil injection pressure maintaining device according to claim 5, wherein a branch oil passage is arranged in the bit leg, and the oil passage branch is communicated with the lubricating oil passage and the positioning steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322471007.9U CN220705624U (en) | 2023-09-12 | 2023-09-12 | Roller cone engineering piece with rubber capsule type oiling pressure maintaining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322471007.9U CN220705624U (en) | 2023-09-12 | 2023-09-12 | Roller cone engineering piece with rubber capsule type oiling pressure maintaining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220705624U true CN220705624U (en) | 2024-04-02 |
Family
ID=90440250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322471007.9U Active CN220705624U (en) | 2023-09-12 | 2023-09-12 | Roller cone engineering piece with rubber capsule type oiling pressure maintaining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220705624U (en) |
-
2023
- 2023-09-12 CN CN202322471007.9U patent/CN220705624U/en active Active
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