CN203363062U - Dual cylindrical gear - Google Patents
Dual cylindrical gear Download PDFInfo
- Publication number
- CN203363062U CN203363062U CN 201320404994 CN201320404994U CN203363062U CN 203363062 U CN203363062 U CN 203363062U CN 201320404994 CN201320404994 CN 201320404994 CN 201320404994 U CN201320404994 U CN 201320404994U CN 203363062 U CN203363062 U CN 203363062U
- Authority
- CN
- China
- Prior art keywords
- driving gear
- annular groove
- gear
- axle sleeve
- driven gear
- 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 - Lifetime
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- Gears, Cams (AREA)
Abstract
The utility model provides a dual cylindrical gear. The dual cylindrical gear comprises a driving gear body and a driven gear body, the center of the driving gear body is axially provided with a shaft sleeve in a protruded mode, the shaft sleeve is provided with a shaft hole, a gear shaft is sleeved with the shaft sleeve through the shaft hole, and the driving gear body and the shaft sleeve are formed integrally and made of polyformaldehyde or nylon; an annular groove is formed between the driving gear body and the shaft sleeve, an L-shaped plane rotates by 360 degrees by making the center axis of the driving gear body as the axis to form the annular groove, the shaft sleeve is fixedly sleeved with the driven gear body which is provided with a combination portion, the combination portion extends in the annular groove and is fixed to the annular groove in an embedded mode, the whole space of the annular groove is filled with the combination portion completely, and the driven gear body is made of metal. The dual cylindrical gear has the advantages of being low in cost, easy to manufacture, high in strength and abrasion resistance, and low in noise.
Description
Technical field
The utility model relates to a kind of gear, relates in particular to a kind of duplex cylindrical gears.
Background technique
In stepper motor or synchronous machine, be mainly to realize the transmission of kinetic energy between power source and equipment by duplicate gear, make can rotating of equipment; Duplicate gear generally comprises driving gear and driven gear, existing duplicate gear mainly contains three kinds: in the first duplicate gear, driving gear and driven gear are one-body molded by the injection moulding polyoxymethylene, because driving gear and driven gear are all plastic materials, although the noise while rotating is less, but intensity is low, easy to wear; In the second duplicate gear, driving gear and driven gear are all metal material, although intensity is enough high, but process loaded down with trivial details, manufacture cost is higher, and in rotation process, noise is too large, metal and metal high-speed friction produce very high heat and fricative crushed lemel in addition, cause axle sleeve and gear shaft directly to kill, in the third duplicate gear, the inside of driving gear and driven gear is metal material, outside is the polyoxymethylene material, and this duplicate gear still exists insufficient strength, problem easy to wear.
The model utility content
The technical problems to be solved in the utility model is: in order to solve the problem that current duplicate gear can't spacing intensity be high, noise is little, cost is low, the utility model provides a kind of duplex cylindrical gears with new structure to solve the problems referred to above.
The utility model solves the technological scheme that its technical problem adopts: a kind of duplex cylindrical gears, comprise driving gear and driven gear, described driving gear center axial projection is provided with axle sleeve, described axle sleeve has for being set in the axis hole on gear shaft, described driving gear and axle sleeve are one-body molded, the material of described driving gear and axle sleeve is all polyoxymethylene or nylon, have between described driving gear and axle sleeve that to take the central shaft of driving gear by L shaped plane be axle, the annular groove that rotating 360 degrees forms, described driven gear is sheathed to be fixed on axle sleeve, described driven gear has and extends into annular groove fixing connecting part nested with annular groove, whole spaces of annular groove are filled up in described connecting part, the material of described driven gear is metal.
Duplicate gear is arranged on gear shaft, in the power transmission process, the driving gear of duplicate gear is connected with power source, driven gear is connected with equipment, drive the equipment High Rotation Speed due to main by driven gear, so the transmission impact force of duplicate gear is mainly to be born by driven gear, the impact force that driven gear bears is the doubly a lot of of driving gear, so the material of the driven gear of this duplex cylindrical gears is for having higher-strength and anti abrasive metal, and in order to reduce noise and to reduce costs, the material of driving gear is POM or nylon, also avoided the problem of the frictional heat between metal and metal.
The beneficial effects of the utility model are, it is low that this duplex cylindrical gears has had cost concurrently, make simply, and intensity is high, and abrasion resistance is high, the advantage that noise is little.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the optimum embodiment's of the utility model duplex cylindrical gears sectional view.
In figure 1, driving gear, 2, driven gear, 3, axle sleeve, 4, axis hole.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, the utility model provides a kind of duplex cylindrical gears, comprise driving gear 1 and driven gear 2, driving gear 1 center axial projection is provided with axle sleeve 3, axle sleeve 3 has for being set in the axis hole 4 on gear shaft, driving gear 1 and axle sleeve 3 are one-body molded, the material of driving gear 1 and axle sleeve 3 is all polyoxymethylene or nylon, have between driving gear 1 and axle sleeve 3 that to take the central shaft of driving gear 1 by L shaped plane be axle, the annular groove that rotating 360 degrees forms, driven gear 2 is sheathed to be fixed on axle sleeve 3, driven gear 2 has and extends into annular groove fixing connecting part nested with annular groove, whole spaces of annular groove are filled up in connecting part, the material of driven gear 2 is metal, this duplex cylindrical gears is first one-body molded by driving gear 1 and axle sleeve 3 by Shooting Technique, pass through again powder metallurgical technique moulding driven gear 2 in annular groove and on axle sleeve 3, fixing with driving gear 1 and axle sleeve 3 after the moulding of connecting part, non-dismountable, solid and reliable.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (1)
1. a duplex cylindrical gears, comprise driving gear (1) and driven gear (2), it is characterized in that: described driving gear (1) center axial projection is provided with axle sleeve (3), described axle sleeve (3) has for being set in the axis hole (4) on gear shaft, described driving gear (1) and axle sleeve (3) are one-body molded, the material of described driving gear (1) and axle sleeve (3) is all polyoxymethylene or nylon, have between described driving gear (1) and axle sleeve (3) that to take the central shaft of driving gear (1) by L shaped plane be axle, the annular groove that rotating 360 degrees forms, described driven gear (2) is sheathed to be fixed on axle sleeve (3), described driven gear (2) has and extends into annular groove fixing connecting part nested with annular groove, whole spaces of annular groove are filled up in described connecting part, the material of described driven gear (2) is metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320404994 CN203363062U (en) | 2013-07-08 | 2013-07-08 | Dual cylindrical gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320404994 CN203363062U (en) | 2013-07-08 | 2013-07-08 | Dual cylindrical gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363062U true CN203363062U (en) | 2013-12-25 |
Family
ID=49810831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320404994 Expired - Lifetime CN203363062U (en) | 2013-07-08 | 2013-07-08 | Dual cylindrical gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203363062U (en) |
-
2013
- 2013-07-08 CN CN 201320404994 patent/CN203363062U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |