CN209041462U - A kind of roll sleeve planetary reducer - Google Patents
A kind of roll sleeve planetary reducer Download PDFInfo
- Publication number
- CN209041462U CN209041462U CN201821622074.9U CN201821622074U CN209041462U CN 209041462 U CN209041462 U CN 209041462U CN 201821622074 U CN201821622074 U CN 201821622074U CN 209041462 U CN209041462 U CN 209041462U
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- China
- Prior art keywords
- input shaft
- roll sleeve
- needle roller
- planetary reducer
- output shaft
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Abstract
The utility model relates to a kind of retarding devices.Purpose is to provide a kind of roll sleeve planetary reducer, which should have the characteristics that structure is simple, convenient for production, bearing capacity is high.Technical solution is: a kind of roll sleeve planetary reducer, including shell, rotationally be disposed coaxially on shell both ends input shaft and output shaft and setting inside housings between input shaft and output shaft transmit power epicyclic transmission mechanism；It is characterized by: the epicyclic transmission mechanism includes gear ring, the planet carrier fixed with output shaft, several planetary gears for being rotatably positioned in planet carrier and engaging with sun gear and gear ring for being made of several first needle rollers and forming with the sun gear of input shaft fixation, by several second needle rollers and fix with inner walls；First needle roller and the second needle roller are arranged with circumferential arrangement around input shaft axis.
Description
Technical field
The utility model relates to a kind of retarding device, specifically a kind of planetary reducer.
Background technique
Planetary reducer is a kind of particularly important drive apparatus in machinery field, is widely used in lifting, excavation, fortune
Defeated, building etc. is in fields, has that light-weight, small in size, gear range is big, high-efficient, smooth running, noise are low, adaptability
Strong feature.But since structure is complicated for planetary reducer, especially gear ring position needs to process by multiple working procedure, be produced into
This is high, and later maintenance is extremely difficult, and bearing capacity is also difficult to be promoted, therefore needs to be improved.
Utility model content
The purpose of the utility model is to overcome the deficiencies in above-mentioned background technique, provide a kind of roll sleeve planetary reducer, should
Roll sleeve planetary reducer should have the characteristics that structure is simple, convenient for production, bearing capacity is high.
The technical solution of the utility model is:
A kind of roll sleeve planetary reducer including shell, is rotationally disposed coaxially on input shaft and the output at shell both ends
Axis and setting between input shaft and output shaft inside housings for transmitting the epicyclic transmission mechanism of power；Its feature exists
In: the epicyclic transmission mechanism includes being made of several first needle rollers and rolling with the sun gear of input shaft fixation, by several second
Needle composition and the gear ring fixed with inner walls, the planet carrier fixed with output shaft, be rotatably positioned in planet carrier and
Several planetary gears engaged with sun gear and gear ring；First needle roller and the second needle roller are with circumferential arrangement around input
Axis axis arrangement.
Encapsulation has the first roll sleeve that can be rotated coaxially on first needle roller；Encapsulation has and can coaxially turn on second needle roller
The second dynamic roll sleeve.
The first fixing groove for installing the first needle roller is formed on the circumferencial direction of the input shaft outer circumference surface；The shell
The second fixing groove for installing the second needle roller is formed on the circumferencial direction of internal wall.
The tooth form of the planetary gear is one straight line tooth form of three-arc, two circular arcs, one linear, two circular arc double wedge shapes or a circle
One linear of arc.
Flange seat or pedestal are installed on the shell.
The beneficial effects of the utility model are:
The utility model replaces traditional gear ring using needle roller roll sleeve structure, is not only simple in structure, produces and repair very
It is convenient, production cost is significantly reduced, and bigger reduction ratio can also be obtained, further improves torque, can satisfy
The use demand of more occasions.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of embodiment one.
Fig. 2 is the schematic view of the front view of sun gear and input shaft in Fig. 1.
Fig. 3 is the left view structural representation of epicyclic transmission mechanism in Fig. 1.
Fig. 4 is the schematic view of the front view of embodiment two.
Specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model be not limited to
Lower embodiment.
As shown in Figure 1, a kind of roll sleeve planetary reducer, including shell 1, input shaft 2, output shaft 3 and Gear Planet Transmission machine
Structure.
The input shaft is coaxially arranged with output shaft and is rotatably positioned by bearing at shell both ends.The input
Two kinds of mounting means of cantilever design or single span structure can be used in axis.In the cantilever design (shown in Fig. 1), input shaft passes through setting
Two bearing of input shaft 2-2 connection shells at middle part.In the single span structure (shown in Fig. 4), input shaft is expert at by setting
Two bearing of input shaft 2-2 of star transmission mechanism two sides are separately connected shell and output shaft.
The epicyclic transmission mechanism is arranged inside housings, for transmitting power between input shaft and output shaft.It is described
In epicyclic transmission mechanism, sun gear is fixed with input shaft, and gear ring is fixed with inner walls, and planet carrier 6 is fixed with output shaft, several
Planetary gear 7 is arranged in input shaft surrounding and is rotatably positioned in planet carrier by planet wheel spindle 7-1, sun gear, planet
Wheel is successively engaged between gear ring.
The sun gear includes several the first needle rollers 4 for being parallel to input shaft, these first needle rollers are with circumferential arrangement
It arranges around input shaft axis and is fixed with input shaft.The first fixing groove is formed on the circumferencial direction of the input shaft outer circumference surface
2-1, the first needle roller are mounted in the first fixing groove (cell wall of the both ends of the first needle roller and the first fixing groove is fixed), and each
Encapsulation has the first roll sleeve 4-1 that can be rotated coaxially on first needle roller.The length direction of first needle roller is parallel to input shaft axis
Line.
The gear ring includes several the second needle rollers 5 for being parallel to input shaft, these second needle rollers are enclosed with circumferential arrangement
It arranges around input shaft axis and is fixed with inner walls.The second fixing groove 1-1 is formed on the circumferencial direction of the inner walls, the
Two needle rollers are mounted in the second fixing groove (cell wall of the both ends of the second needle roller and the second fixing groove is fixed), and each second rolling
Encapsulation has the second roll sleeve 5-1 that can be rotated coaxially on needle.The length direction of second needle roller is parallel to input shaft axis.
Only individual needle roller need to be set in the speed reducer of large speed ratio, needle roller can be used in the speed reducer of small speed ratio and add roll sleeve
Combining form.
The tooth form of the planetary gear can be one linear of three-arc, and it is convex to be also possible to two circular arcs, one linear, two circular arcs
One linear of tooth form or a circular arc.
The working principle of the utility model are as follows: external impetus passes to input shaft, and input shaft passes through epicyclic transmission mechanism band
Dynamic output shaft low speed rotation outputs power, and is slowed down by gear ratio.
Since the utility model replaces traditional gear and ring gear using needle roller roll sleeve structure, thus by Gear Planet Transmission machine
The sliding friction of structure becomes rolling friction, greatly improves bearing capacity, obtains superior transmission performance, while also having
Advantage convenient for production, easy to maintain, reliable for operation.
As shown in Figure 1, being equipped with flange seat 9-1 on the shell, the vertical installation requirements of speed reducer can be met.Such as Fig. 4
It is shown, pedestal 9-2 is installed on the shell, the horizontal installation requirements of speed reducer can be met.
Claims (5)
1. a kind of roll sleeve planetary reducer, including shell (1), rotationally be disposed coaxially on the input shaft (2) at shell both ends with
Output shaft (3) and setting between input shaft and output shaft inside housings for transmitting the epicyclic transmission mechanism of power；Its
Be characterized in that: the epicyclic transmission mechanism include by several first needle rollers (4) if form and the sun gear fixed with input shaft, by
Dry second needle roller (5) composition and the gear ring fixed with inner walls, with the planet carrier (6) of output shaft fixation, be rotatably positioned
Several planetary gears (7) engaged in planet carrier and with sun gear and gear ring；First needle roller and the second needle roller are with circle
All arrangement modes are arranged around input shaft axis.
2. a kind of roll sleeve planetary reducer according to claim 1, it is characterised in that: have can for encapsulation on first needle roller
The first roll sleeve (4-1) rotated coaxially；Encapsulation has the second roll sleeve (5-1) that can be rotated coaxially on second needle roller.
3. a kind of roll sleeve planetary reducer according to claim 2, it is characterised in that: the circle of the input shaft outer circumference surface
The first fixing groove (2-1) for installing the first needle roller is formed in circumferential direction；Use is formed on the circumferencial direction of the inner walls
In the second fixing groove (1-1) for installing the second needle roller.
4. a kind of roll sleeve planetary reducer according to claim 3, it is characterised in that: the tooth form of the planetary gear is three circles
One linear of arc, one linear of two circular arcs, one linear, two circular arc double wedge shapes or a circular arc.
5. a kind of roll sleeve planetary reducer according to claim 4, it is characterised in that: be equipped with flange seat on the shell
(9-1) or pedestal (9-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622074.9U CN209041462U (en) | 2018-09-30 | 2018-09-30 | A kind of roll sleeve planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821622074.9U CN209041462U (en) | 2018-09-30 | 2018-09-30 | A kind of roll sleeve planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041462U true CN209041462U (en) | 2019-06-28 |
Family
ID=67035167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821622074.9U Active CN209041462U (en) | 2018-09-30 | 2018-09-30 | A kind of roll sleeve planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027140A (en) * | 2018-09-30 | 2018-12-18 | 杭州星河传动机械研究院有限公司 | A kind of roll sleeve planetary reducer |
-
2018
- 2018-09-30 CN CN201821622074.9U patent/CN209041462U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027140A (en) * | 2018-09-30 | 2018-12-18 | 杭州星河传动机械研究院有限公司 | A kind of roll sleeve planetary reducer |
| CN109027140B (en) * | 2018-09-30 | 2023-12-19 | 杭州星河传动机械研究院有限公司 | Rolling sleeve planetary speed reducer |
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