CN203362875U - Powder metallurgy high-torque slipping type gear - Google Patents
Powder metallurgy high-torque slipping type gear Download PDFInfo
- Publication number
- CN203362875U CN203362875U CN 201320405479 CN201320405479U CN203362875U CN 203362875 U CN203362875 U CN 203362875U CN 201320405479 CN201320405479 CN 201320405479 CN 201320405479 U CN201320405479 U CN 201320405479U CN 203362875 U CN203362875 U CN 203362875U
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- CN
- China
- Prior art keywords
- gear
- metal
- gearwheel
- powder metallurgy
- friction sheet
- 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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Abstract
The utility model relates to a powder metallurgy high-torque slipping type gear which comprises a metal mandrel, a large gear, a small gear and a metal friction plate, wherein the large gear, the small gear and the metal friction plate are coaxially arranged on the metal mandrel, the small gear and the metal friction plate are respectively and fixedly connected with the metal mandrel, the large gear and the small gear are compressed through the metal friction plate, and metal gaskets are arranged between the large gear and the small gear and between the metal friction plate and the large gear respectively. The powder metallurgy high-torque slipping type gear can prevent the situation of tooth breaking of the gear due to the fact that the impact on the gear is high, the service life of the gear is greatly prolonged, production cost is reduced, and the powder metallurgy high-torque slipping type gear is simple and reasonable in structure, easy to machine, high in output torque, stable in performance and especially suitable for a minitype motor or a gear transmission drum of the gear needing friction protection.
Description
Technical field
The utility model relates to the coupling field, especially a kind of that be applicable to the gear transmission field and the large torque slipping type of the matching used powder metallurgy of micromachine gear.
Background technique
In order to protect motor not burnt, just need between motor and load, be provided with friction slip formula output shaft when transshipping.The output shaft that stepping on existing market, synchronous machine are used is all generally metal material, by riveted joint, realizes coordinating of output shaft and gear.Yet when load is excessive, between the gear on such slipping type output shaft and gear, produces and skid, the flank of tooth easily weares and teares, even can cause gear tooth breakage when serious, greatly reduce working life, and processing mode is loaded down with trivial details, cost is higher.
The model utility content
The technical problems to be solved in the utility model is: for the large torque slipping type of a kind of powder metallurgy gear is provided, can prevent that gear from causing the situation of gear tooth breakage when being subject to the greater impact process, processing is simple, easy to assembly, the output torque is large, stable performance, and working life is longer.
The utility model solves the technological scheme that its technical problem adopts: the large torque slipping type of a kind of powder metallurgy gear, comprise metal core axle, gearwheel, small gear and metal friction sheet, described gearwheel, small gear and metal friction sheet coaxially are arranged on metal core axle, described small gear, the metal friction sheet is fixedly connected with metal core axle respectively, between described gearwheel and small gear, by the metal friction sheet, compress, between gearwheel and small gear, be respectively arranged with metallic shim between metal friction sheet and gearwheel, metallic shim can prevent that gear from causing the situation of gear tooth breakage when being subject to the greater impact process, prevent gearwheel, the small gear wearing and tearing, thereby improved working life.
In order to play better protection effect; the diameter of described metallic shim is greater than the diameter of small gear and is less than the diameter of gearwheel; when load is excessive; metallic shim can prevent from the phenomenon of broken teeth occurring owing to skidding between gearwheel and small gear, gearwheel and metal friction sheet effectively; reduced the wearing and tearing of gearwheel, small gear, greatly improved working life.
Compress preferably effect for the metal friction sheet is played, the diameter of described metal friction sheet is less than or equal to the diameter of metallic shim.
In order to facilitate metal friction sheet ground to install, offer groove in described gearwheel, described metal friction sheet is arranged in groove, has not only facilitated the assembling of metal friction sheet ground, can also make the compression better effects if of metal friction sheet.
Between described small gear and metal core axle, for profile is connected, make metal core axle and small gear to rotate simultaneously.
Between described metal friction sheet and metal core axle, for profile is connected, make metal core axle and metal friction sheet to rotate simultaneously.
The beneficial effects of the utility model are: the large torque slipping type of the utility model powder metallurgy gear is due between gearwheel and small gear, be respectively arranged with metallic shim between metal friction sheet and gearwheel; can prevent that gear from causing the situation of gear tooth breakage while being subject to larger impact; improved widely the working life of gear; reduced cost of production; the large torque slipping type of this powder metallurgy gear structure advantages of simple; processing is simple; the output torque is large; stable performance, be particularly suitable for micromachine or need the gear transmission of the band friction protection use of beating a drum.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the perspective view of a preferred embodiment of the large torque slipping type of the utility model powder metallurgy gear;
In figure: 1. metal core axle, 2. gearwheel, 3. small gear, 4. metal friction sheet, 5. metallic shim, 6. groove.
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 large torque slipping type of a kind of powder metallurgy gear, comprise metal core axle 1, gearwheel 2, small gear 3 and metal friction sheet 4, described gearwheel 2, small gear 3 and metal friction sheet 4 coaxially are arranged on metal core axle 1, described small gear 3, metal friction sheet 4 are fixedly connected with metal core axle 1 respectively, between described gearwheel 2 and small gear 3, by metal friction sheet 4, compress, between gearwheel 2 and small gear 3, between metal friction sheet 4 and gearwheel 2, be respectively arranged with metallic shim 5.
The diameter of described metallic shim 5 is greater than the diameter of small gear 3 and is less than the diameter of gearwheel 2, when load is excessive, metallic shim 5 can prevent from the phenomenon of broken teeth occurring owing to skidding between gearwheel 2 and small gear 3, gearwheel 2 and metal friction sheet 4 effectively, reduced the wearing and tearing of gearwheel 2, small gear 3, greatly improved working life.
The diameter of described metal friction sheet 4 is less than or equal to the diameter of metallic shim 5, makes the compression effect of metal friction sheet 4 better.
Offer groove 6 in described gearwheel 2, described metal friction sheet 4 is arranged in groove 6, has not only facilitated the 4 ground assemblings of metal friction sheet, can also make the compression better effects if of metal friction sheet 4.
For profile is connected, can drive small gear 3 simultaneously and rotate when metal core axle 1 rotates between described small gear 3 and metal core axle 1.
Between described metal friction sheet 4 and metal core axle 1, for profile, be connected, can drive metal friction sheet 4 when metal core axle 1 rotates rotates simultaneously, owing between metal friction sheet 4 and gearwheel 2, having static friction, metal friction sheet 4 can drive gearwheel 2 and rotate while rotating.
During work, metal core axle 1 rotarily drives small gear 3 and metal friction sheet 4 rotates simultaneously, metal friction sheet 4 drives gearwheel 2 by stiction and rotates simultaneously, when rotating speed is very fast, gearwheel 2 just produces and skids, due between gearwheel 2 and small gear 3, between metal friction sheet 4 and gearwheel 2, be respectively arranged with metallic shim 5, therefore between gearwheel 2 and small gear 3, can not wear and tear because of mutually colliding, gearwheel 2 and metal friction sheet 4 can not wear and tear because of mutually colliding yet, and have greatly improved working life.
Compared with prior art; the large torque slipping type of the utility model powder metallurgy gear is due between gearwheel 2 and small gear 3, be respectively arranged with metallic shim 5 between metal friction sheet 4 and gearwheel 2; can prevent the gear tooth breakage situation that gear causes while being subject to larger impact; improved widely the working life of gear; reduced cost of production; the large torque slipping type of this powder metallurgy gear structure advantages of simple; processing is simple; the output torque is large; stable performance, be particularly suitable for micromachine or need the gear transmission of the band friction protection use of beating a drum.
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 (6)
1. the large torque slipping type of a powder metallurgy gear, it is characterized in that: comprise metal core axle, gearwheel, small gear and metal friction sheet, described gearwheel, small gear and metal friction sheet coaxially are arranged on metal core axle, described small gear, metal friction sheet are fixedly connected with metal core axle respectively, between described gearwheel and small gear, by the metal friction sheet, compress, between gearwheel and small gear, between metal friction sheet and gearwheel, be respectively arranged with metallic shim.
2. the large torque slipping type of powder metallurgy as claimed in claim 1 gear, it is characterized in that: the diameter of described metallic shim is greater than the diameter of small gear and is less than the diameter of gearwheel.
3. the large torque slipping type of powder metallurgy as claimed in claim 1 gear, it is characterized in that: the diameter of described metal friction sheet is less than or equal to the diameter of metallic shim.
4. the large torque slipping type of powder metallurgy as claimed in claim 1 gear, it is characterized in that: offer groove in described gearwheel, described metal friction sheet is arranged in groove.
5. the large torque slipping type of powder metallurgy as claimed in claim 1 gear is characterized in that: between described small gear and metal core axle, for profile, be connected.
6. the large torque slipping type of powder metallurgy as claimed in claim 1 gear is characterized in that: between described metal friction sheet and metal core axle, for profile, be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320405479 CN203362875U (en) | 2013-07-08 | 2013-07-08 | Powder metallurgy high-torque slipping type gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320405479 CN203362875U (en) | 2013-07-08 | 2013-07-08 | Powder metallurgy high-torque slipping type gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362875U true CN203362875U (en) | 2013-12-25 |
Family
ID=49810647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320405479 Expired - Lifetime CN203362875U (en) | 2013-07-08 | 2013-07-08 | Powder metallurgy high-torque slipping type gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889460A (en) * | 2015-01-28 | 2016-08-24 | 操纵技术Ip控股公司 | Powder metal hub and treatment |
-
2013
- 2013-07-08 CN CN 201320405479 patent/CN203362875U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889460A (en) * | 2015-01-28 | 2016-08-24 | 操纵技术Ip控股公司 | Powder metal hub and treatment |
| CN105889460B (en) * | 2015-01-28 | 2018-12-25 | 操纵技术Ip控股公司 | Powdered-metal hub and processing |
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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 |