CN211175273U - Planetary gear with oil storage tank in inner hole - Google Patents
Planetary gear with oil storage tank in inner hole Download PDFInfo
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- CN211175273U CN211175273U CN201922293677.XU CN201922293677U CN211175273U CN 211175273 U CN211175273 U CN 211175273U CN 201922293677 U CN201922293677 U CN 201922293677U CN 211175273 U CN211175273 U CN 211175273U
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- planetary gear
- oil storage
- storage tank
- wheel body
- planet wheel
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Abstract
The utility model belongs to the technical field of the planetary gear manufacturing technique and specifically relates to a planetary gear of hole area batch oil tank, it is equipped with planet wheel body, the teeth of a cogwheel and centre bore, the centre bore establish at the middle part of planet wheel body, the teeth of a cogwheel are established on the circumference of planet wheel body, characterized in that the outer circumference of centre bore planet wheel body on the equipartition be equipped with the bar batch oil tank, the cross-section semicircular in shape of bar batch oil tank, the both ends opening of bar batch oil tank is established to the excessive export of lubricating grease, has advantages such as simple structure, long service life, the noise is little, operate steadily.
Description
Technical Field
The utility model belongs to the technical field of the planetary gear manufacturing technology and specifically relates to a simple structure, long service life, little, the steady operation's of noise hole area planetary gear of oil storage tank.
Background
As is known, the planetary gear prepared by the powder metallurgy method is a conventional product in powder metallurgy parts, the dosage of the planetary gear accounts for more than 30% of the whole electric drill industry, and the design of the planetary gear directly influences the quality of the product. Therefore, a reasonable design is very important for the service life.
At present, a planetary gear is used under the severe working conditions of high temperature and high rotating speed, the wear resistance is a main factor influencing the service life of an electric drill, the increase of the clearance between an inner hole of the planetary gear and a planet carrier increases the noise of the electric drill, and the running stability is reduced, so that the working efficiency and the machining precision are reduced.
Disclosure of Invention
The utility model aims at solving the defects of the prior art and providing the planetary gear with the oil storage tank in the inner hole, which has simple structure, long service life, low noise and stable operation.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a planetary gear of hole area oil storage tank, is equipped with planet wheel body, the teeth of a cogwheel and centre bore, the centre bore establish at the middle part of planet wheel body, the teeth of a cogwheel are established on the circumference of planet wheel body, its characterized in that the outer circumference of centre bore planet wheel body on the equipartition be equipped with the bar oil storage tank, the cross-section semicircular in shape of bar oil storage tank, the both ends opening of bar oil storage tank is established to the grease overflow mouth.
Bar oil storage tank be equipped with three along centre bore circumference equipartition, the axis of bar oil storage tank parallels with the axis of centre bore, guarantees that lubricating grease spills over the effect.
The semi-circular cross-section radius of bar oil storage tank be 0.5mm, guarantee lubricated effect and also can reduce the influence of increase recess to the rotational speed simultaneously.
Bar oil storage tank intussuseption pack lubricating grease.
The external diameter of the gear teeth of the utility model is 8-20mm, and the length of the planet wheel body is 4-15 mm.
The utility model discloses because outer circumference of centre bore planet wheel body on the equipartition be equipped with the bar batch oil tank, the cross-section semicircular in shape of bar batch oil tank, the both ends opening of bar batch oil tank is established to grease overflow and exports, the bar batch oil tank be equipped with three along centre bore circumference equipartition, the axis of bar batch oil tank parallels with the axis of centre bore, guarantees that grease spills over the effect, the semi-circular cross-section radius of bar batch oil tank be 0.5mm, guarantee lubricated effect and also can reduce the influence of increase recess to the rotational speed simultaneously, the bar batch oil tank pack grease, the external diameter of the teeth of a cogwheel be 8-20mm, the length of planet wheel body is 4-15mm, has advantages such as simple structure, long service life, the noise is little, the operation is steady.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view of fig. 1.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in the attached drawing, a planetary gear with an oil storage tank in an inner hole is provided with a planetary gear body 1, gear teeth 2 and a central hole 3, the central hole 3 is arranged in the middle of the planetary gear body 1, the gear teeth 2 are arranged on the circumference of the planetary gear body 1, and the planetary gear is characterized in that the planetary gear body 1 on the outer circumference of the central hole 3 is uniformly provided with strip-shaped oil storage tanks 4, the cross sections of the strip-shaped oil storage tanks 4 are semicircular, the two ends of the strip-shaped oil storage tanks 4 are opened and are provided with lubricating grease overflow outlets, three strip-shaped oil storage tanks 4 are uniformly distributed along the circumference of the central hole 3, the axes of the strip-shaped oil storage tanks 4 are parallel to the axis of the central hole 3, the lubricating grease overflow effect is ensured, the semi-circular cross section radius of the strip-shaped oil storage tanks 4 is 0.5mm, the lubricating, the outer diameter of the gear teeth 2 is 8-20mm, and the length of the planet wheel body 1 is 4-15 mm.
When the planetary gear runs at high speed, lubricating grease in the strip-shaped oil storage tank 4 is heated and overflows out of the tank, so that the lubricating grease has the function of reducing the abrasion of the central hole 3 in the middle of the planetary gear body 1; when the planet gear stops running, the lubricating grease in the bar-shaped oil storage tank 4 is precooled and collected to flow into the bar-shaped oil storage tank 4, when the planet gear body is matched with the planet carrier pin, the normal supply of the lubricating grease can be ensured while the use strength is ensured, the abrasion of an inner hole can be effectively reduced, the outer diameter of the gear teeth 2 is 8-20mm, and the length of the planet gear body 1 is 4-15mm, the utility model discloses because the bar-shaped oil storage tank 4 is uniformly distributed on the planet gear body 1 on the outer circumference of the central hole 3, the cross section of the bar-shaped oil storage tank 4 is semicircular, the openings at the two ends of the bar-shaped oil storage tank 4 are arranged as lubricating grease overflow ports, three bar-shaped oil storage tanks 4 are uniformly distributed along the circumference of the central hole 3, the axis of the bar-shaped oil storage tank 4 is parallel to the axis of the central hole 3, the lubricating grease overflow effect, the lubricating effect is guaranteed, meanwhile, the influence of the increased groove on the rotating speed can be reduced, lubricating grease is filled in the strip-shaped oil storage tank 4, the outer diameter of the gear teeth 2 is 8-20mm, the length of the planet wheel body 1 is 4-15mm, and the lubricating device has the advantages of being simple in structure, long in service life, low in noise, stable in operation and the like.
Claims (5)
1. The utility model provides a planetary gear of hole area oil storage tank, is equipped with planet wheel body, the teeth of a cogwheel and centre bore, the centre bore establish at the middle part of planet wheel body, the teeth of a cogwheel are established on the circumference of planet wheel body, its characterized in that the outer circumference of centre bore planet wheel body on the equipartition be equipped with the bar oil storage tank, the cross-section semicircular in shape of bar oil storage tank, the both ends opening of bar oil storage tank is established to the grease overflow mouth.
2. A planetary gear with an inner bore having an oil storage tank as claimed in claim 1, wherein the number of the strip-shaped oil storage tanks is three along the circumference of the central bore, and the axes of the strip-shaped oil storage tanks are parallel to the axis of the central bore.
3. A planetary gear having an inner bore with an oil reservoir as claimed in claim 1, wherein the semicircular cross-sectional radius of the strip-shaped oil reservoir is 0.5 mm.
4. A planetary gear having an inner bore with an oil reservoir as claimed in claim 1, wherein the strip-shaped oil reservoir is filled with grease.
5. A planetary gear with an inner bore having an oil reservoir as claimed in claim 1, wherein the outer diameter of the gear teeth is 8-20mm, and the length of the planetary gear body is 4-15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922293677.XU CN211175273U (en) | 2019-12-19 | 2019-12-19 | Planetary gear with oil storage tank in inner hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922293677.XU CN211175273U (en) | 2019-12-19 | 2019-12-19 | Planetary gear with oil storage tank in inner hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211175273U true CN211175273U (en) | 2020-08-04 |
Family
ID=71802775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922293677.XU Active CN211175273U (en) | 2019-12-19 | 2019-12-19 | Planetary gear with oil storage tank in inner hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211175273U (en) |
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2019
- 2019-12-19 CN CN201922293677.XU patent/CN211175273U/en active Active
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