CN2034218U - Floating type differential-gear speed reducer - Google Patents
Floating type differential-gear speed reducer Download PDFInfo
- Publication number
- CN2034218U CN2034218U CN 88214742 CN88214742U CN2034218U CN 2034218 U CN2034218 U CN 2034218U CN 88214742 CN88214742 CN 88214742 CN 88214742 U CN88214742 U CN 88214742U CN 2034218 U CN2034218 U CN 2034218U
- Authority
- CN
- China
- Prior art keywords
- speed reducer
- floating type
- type differential
- gear
- gear speed
- 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.)
- Abandoned
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Abstract
The utility model discloses a floating type differential-gear speed reducer, characterized in that a parallel four-edge mechanism is arranged inside the floating type differential-gear speed reducer, comprising an input shaft with an eccentric shaft diameter, a concentric board, an outer gear wheel and an axis pin. While in operations, the outer gear wheel floats in the circumference mode, in order to drive an inner gear wheel. (The two gear wheels are engaged internally). A dynamic force is transmitted to an output shaft by means of the teeth difference action. The structure of the speed reducer is simple (Only two drive gears are required.), the utility model has the advantages of small size, easy fabrication and low cost. The efficiency is over 90%. The speed ratio width is over 2-100. If the teeth number and the module number of the outer gear wheels in the speed reducer are changed, the requirements of people for various speed ratios and carrying capacities can be met.
Description
The utility model belongs to the retarder in the universal machine field, especially is a kind of floating type differential-gear speed reducer that has parallel four limit mechanisms.
At present, the domestic existing retarder exists intrinsic shortcoming: as ZD type, JZQ type, volume is big, and structure is not compact, waste material; The epicyclic type device, complex structure, manufacturability is not so good, and cost is higher; Harmonic wave formula retarder complex process costs an arm and a leg, and common mechanical can not generally be used.
The purpose of this utility model is to avoid deficiency in the above-mentioned prior art and a kind of new type speed reducer that provides, promptly floating type differential-gear speed reducer.Not only volume is little, in light weight, simple in structure, part is few for it, easy processing, cost are low, and velocity ratio big (more than the 2-100), transmission efficiency height (more than 90%), bearing capacity are big, using extremely extensively, is an outstanding member in the retarder family.
The purpose of this utility model can reach by following measure:
Input shaft with the eccentric diameter of axle is housed, the parallel four limit mechanisms that lamella (at the retarder internal fixation), external gear, cover (or rolling bearing) and bearing pin are formed in the utility model.During this mechanism action, external gear can only be made circumference and float, and drives the internal gear that is engaged with, because the effect of tooth difference reaches output shaft with power, finishes moderating process.
The drawing of accompanying drawing is described as follows:
The utility model contains input shaft (1) output shaft (2), lamella (3), stabilizer (4), bearing pin (5), external gear (a) internal gear (b).
The utility model is further described in conjunction with the accompanying drawings:
Power is imported by input shaft (1), the eccentric diameter of axle drive external gear (a) (under lamella (3) and bearing pin (5) restriction) of input shaft (1) is made circumference and is floated, the internal gear that is engaged with simultaneously (b) turns round with tooth differential degree i, pays output shaft (2) by internal gear (b) with power again.
Its material of lamella (3) can be spheroidal graphite cast iron, cast steel or middle-carbon steel.Its circumference uniform distribution hole can be single hole, also can be porous.What and the diameter (D) in hole designs according to the needs of bearing capacity, and bore dia (D) is answered coincidence formula D=d+2e requirement.D is for being installed in the sliding sleeve on the bearing pin (5) or the external diameter of rolling bearing in the formula, and e is the throw of eccentric of input shaft (1), its size according to interior external gear can normal engaged condition design.
External gear (a) has the circumference uniform distribution hole, one end of bearing pin (5) is fixed in the circumference uniform distribution hole of external gear, and the other end is in the circumference halving hole of lamella, and sliding sleeve or rolling bearing are housed, the circumference uniform distribution hole of the circumference uniform distribution hole of external gear (a) and lamella (3), the position is corresponding.
In order to guarantee the stable of parallel four limit mechanism kinematics, prevent the motion imbalance that input shaft (1) off-centre causes, a stabilizer (4) is housed on input shaft (1).Stabilizer (4) can be installed in the left side of input shaft (1), also can be installed in the right.
The material of external gear (a) internal gear (b) is cast steel or middle-carbon steel, and profile of tooth can be involute profile, also can be other profile of tooth.
The material of bearing pin (5) upper sliding sleeve can be the high-quality gray pig iron, also can be tin bronze etc.
The principle of the i=of formula with reference to the accompanying drawings (b)/(b-a) changes the number of teeth of inside and outside gear, can design the retarder of various speed ratios easily.The different needs of transmitted power, the modulus of change gear can be realized.
The utility model compared with prior art has following advantage:
1. efficient height, because it is few to participate in the parts of transmission, mechanical loss is little, transmitted power is more than 90%;
2. simple in structure, volume is little, and weight is light, and parts are easily processed, and cost is low;
3. inside and outside gear adopts the internal tooth engagement, and bearing capacity is big;
4. be easy to the standardization producing in serial form of product.
Claims (5)
1, a kind of floating type differential-gear speed reducer is characterized in that this retarder inside is equipped with parallel four limit mechanisms, is made up of input shaft (1), lamella (3), external gear (a) and bearing pin (5).
2, floating type differential-gear speed reducer according to claim 1 is characterized in that said lamella (3) is fixed in the retarder, and the circumference uniform distribution hole of lamella (3) can be a single hole, also can be porous.
3, floating type differential-gear speed reducer according to claim 1, it is corresponding with the position of the circumference halving hole of lamella (3) to it is characterized in that external gear (a) is gone up the halving hole that bearing pin (5) is installed.
4, floating type differential-gear speed reducer according to claim 1 is characterized in that being equipped with on the said input shaft (1) stabilizer (4).
5, floating type differential-gear speed reducer according to claim 1 is characterized in that on the bearing pin (5) in the said lamella circumference halving hole sliding sleeve or rolling bearing being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88214742 CN2034218U (en) | 1988-10-12 | 1988-10-12 | Floating type differential-gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88214742 CN2034218U (en) | 1988-10-12 | 1988-10-12 | Floating type differential-gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2034218U true CN2034218U (en) | 1989-03-15 |
Family
ID=4847637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88214742 Abandoned CN2034218U (en) | 1988-10-12 | 1988-10-12 | Floating type differential-gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2034218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043678C (en) * | 1993-08-27 | 1999-06-16 | 住友重机械工业株式会社 | Differential type internally meshing planetary gear structure |
-
1988
- 1988-10-12 CN CN 88214742 patent/CN2034218U/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043678C (en) * | 1993-08-27 | 1999-06-16 | 住友重机械工业株式会社 | Differential type internally meshing planetary gear structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |