CN205078183U - Leg grease lubrication is from pressurized structure - Google Patents
Leg grease lubrication is from pressurized structure Download PDFInfo
- Publication number
- CN205078183U CN205078183U CN201520829303.4U CN201520829303U CN205078183U CN 205078183 U CN205078183 U CN 205078183U CN 201520829303 U CN201520829303 U CN 201520829303U CN 205078183 U CN205078183 U CN 205078183U
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- CN
- China
- Prior art keywords
- oil storage
- steel ball
- piston
- grease lubrication
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a leg grease lubrication is from pressurized structure, including the leg body that is provided with the oil storage way, the upper segment that the oil storage was said is provided with the air discharge duct, and the A end from interior to exterior that the oil storage was said is equipped with piston, spring and blind nut in proper order, and O type circle is equipped with to blind nut and A end junction, B end and steel ball hole intercommunication that the oil storage was said, the downthehole steel ball stopper round pin of installing of steel ball. The utility model discloses pack into in the oil storage is said piston and spring produce the thrust toward oil storage pipe's B end to the piston through the spring, impel the grease to replenish toward the bearing is inside, increase the grease lubrication time, have effectively lengthened the bearing life -span.
Description
Technical field
The utility model relates to a kind of roller drill of engineering machinery field, particularly the rock bit tooth pawl grease lubrication self-pressurization structure of rotary drilling rig roller drill.
Background technology
Generally use to revolve in pile foundation engineering field and dig stake, when excavating hardpan, need to use roller drill, roller drill generally includes drilling pipe and rock bit.Rotary drilling rig generally adopts quiet slurry panelling construction, and rock bit works in mud, and non-compressed air deslagging cools.Cone bit bearing adopts grease lubrication hermetically-sealed construction, and the deposit grease non-compressed air of tooth pawl oil duct is short flow to bearing portion, and deposit grease cannot supplement after bearing portion oil loss, and grease lubrication limited time, constrains the life-span of bearing.
Utility model content
Technical problem to be solved in the utility model is, increases oil reserve, and flow to bearing portion by short for deposit grease, continues in time to supplement to the oil loss of bearing portion, prolongation bearing application life.
For achieving the above object, the utility model by the following technical solutions.Tooth pawl grease lubrication self-pressurization structure, comprise the gear claw body being provided with oil storage road, the epimere in described oil storage road is provided with air discharge duct, and the A end in described oil storage road is equipped with piston, spring and blind nut from the inside to the outside successively, and described blind nut and A hold junction that O type circle is housed; The B end in described oil storage road is communicated with steel ball hole, is provided with steel ball plug pin in described steel ball hole.
Described blind nut periphery is provided with screw thread and mates with the internal thread that A holds.
The utility model arranges oil storage road at gear claw body, and this oil storage road limits according to the shape of gear claw body, processes the cylindrical of a large as far as possible inclination.The A end in oil storage road has internal thread and sealed step, and B end communicates with steel ball hole, supplements grease through steel ball hole toward Bearing inner.In oil storage road, load piston and spring, by spring, the thrust that a B toward oil storing tube holds is produced to piston, impel grease to supplement toward Bearing inner, increase the grease lubrication time, effectively extend bearing life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 be in Fig. 1 C-C to partial sectional view.
In figure: 1.O shape is enclosed, 2. air discharge duct, 3. piston, 4. blind nut, 5. spring, 6. oil storage road, 7. steel ball hole, 8. steel ball plug pin, 9. gear claw body.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.See Fig. 1, tooth pawl grease lubrication self-pressurization structure, comprise the gear claw body 9 being provided with oil storage road 6, the epimere in described oil storage road 6 is provided with air discharge duct 2, the A end in described oil storage road 6 is equipped with piston 3, spring 5 and blind nut 4 from the inside to the outside successively, and described blind nut 4 holds junction that O type circle 1 is housed with A; The B end in described oil storage road 6 is communicated with steel ball hole 7, is provided with steel ball plug pin 8 in described steel ball hole 7.
Described blind nut 4 periphery is provided with screw thread and mates with the internal thread that A holds.
Tooth pawl grease lubrication self-pressurization structure of the present utility model, gear claw body 9 is provided with oil storage road 6, and this oil storage road limits according to the shape of gear claw body 9, and process the cylindrical of a large as far as possible inclination, surface roughness Ra is less than 0.8 μm.The A end in oil storage road 6 has internal thread and sealing station, the footpath, the end that against internal thread processes one section of air discharge duct 2, and equipped corresponding O shape circle 1 and blind nut 4, load piston 3 and spring 5 in oil storage road 6, B end communicates with steel ball hole 7, supplements grease through steel ball hole 7 toward Bearing inner.
After gear claw body 9 installs bearing, load steel ball plug pin 8 from steel ball hole 7, steel ball hole adopts electric welding to close immediately.The A end in oil storage road 6 is threaded connection with vacuum oil equipment, forms a closed cavity.Vacuumize rear injection drill bit special fat, after note to air discharge duct 2 end, unclamp the connection with vacuum oil equipment; Load piston 3 from the A end in oil storage road 6, be vented by air discharge duct 2 when piston 3 loads, until air discharge duct end; Load O shape circle 1, spring 5, after being compressed by spring 5, be screwed into blind nut 4, make 5 one-tenth, spring compressive state and the A in oil storage road 6 is held to close.At this moment spring 5 produces to piston 3 thrust that a B toward oil storing tube 6 holds all the time.Namely to grease pressurization, impel grease to supplement toward Bearing inner, increase the grease lubrication time, extend bearing life.
Claims (2)
1. tooth pawl grease lubrication self-pressurization structure, comprise the gear claw body being provided with oil storage road, it is characterized in that, the epimere in described oil storage road is provided with air discharge duct, the A end in described oil storage road is equipped with piston, spring and blind nut from the inside to the outside successively, and described blind nut and A hold junction that O type circle is housed; The B end in described oil storage road is communicated with steel ball hole, is provided with steel ball plug pin in described steel ball hole.
2. tooth pawl grease lubrication self-pressurization structure according to claim 1, it is characterized in that, described blind nut periphery is provided with screw thread and mates with the internal thread that A holds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829303.4U CN205078183U (en) | 2015-10-26 | 2015-10-26 | Leg grease lubrication is from pressurized structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829303.4U CN205078183U (en) | 2015-10-26 | 2015-10-26 | Leg grease lubrication is from pressurized structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078183U true CN205078183U (en) | 2016-03-09 |
Family
ID=55430597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520829303.4U Expired - Fee Related CN205078183U (en) | 2015-10-26 | 2015-10-26 | Leg grease lubrication is from pressurized structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145392A (en) * | 2023-10-31 | 2023-12-01 | 山东昊锐岩土钻具有限公司 | Fast-assembling type roller bit and drilling tool using same |
| WO2024131687A1 (en) * | 2022-12-22 | 2024-06-27 | 中国石油化工股份有限公司 | Pdc-roller hybrid drill bit |
-
2015
- 2015-10-26 CN CN201520829303.4U patent/CN205078183U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024131687A1 (en) * | 2022-12-22 | 2024-06-27 | 中国石油化工股份有限公司 | Pdc-roller hybrid drill bit |
| CN117145392A (en) * | 2023-10-31 | 2023-12-01 | 山东昊锐岩土钻具有限公司 | Fast-assembling type roller bit and drilling tool using same |
| CN117145392B (en) * | 2023-10-31 | 2024-01-12 | 山东昊锐岩土钻具有限公司 | Fast-assembling type roller bit and drilling tool using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20201026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |