CN203836154U - Transmission device with self-protection function - Google Patents
Transmission device with self-protection function Download PDFInfo
- Publication number
- CN203836154U CN203836154U CN201320755325.1U CN201320755325U CN203836154U CN 203836154 U CN203836154 U CN 203836154U CN 201320755325 U CN201320755325 U CN 201320755325U CN 203836154 U CN203836154 U CN 203836154U
- Authority
- CN
- China
- Prior art keywords
- transmission
- working surface
- line shaft
- transmission device
- housing
- 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 - Fee Related
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- Gear Transmission (AREA)
- Gears, Cams (AREA)
Abstract
The utility model relates to a transmission device with a self-protection function. The transmission device comprises a power shaft and a transmission component, and is characterized in that a contact face capable of generating friction force is arranged between the power shaft and the transmission component, and the power shaft and the transmission component are transmitted through friction force. The power shaft and the transmission component of the transmission device are connected in a non-rigid mode, and specifically, power is transmitted through the friction force generated by the contact face between the power shaft and the transmission component; when a failure happens, the power shaft and the transmission component act in a sliding mode through external force, and the device can not be damaged; when the failure is removed, the transmission device can automatically reset to work normally.
Description
Technical field
The utility model relates to a kind of mechanical transmission, is specifically related to a kind of transmission device with self-protection function.
Background technique
At instrument field, conventionally adopt gear positive drive mode transferring power.Instrument and apparatus belongs to precision equipment, under positive drive mode, when load is excessive or occur other failure conditions, because power can not occur that gear failure or power source damage by going down, thereby cause instrument and apparatus to damage, cause device damage, produce the consequences such as interruption, for safety in production has brought hidden danger.
Summary of the invention
The purpose of this utility model is to provide a kind of transmission device based on stiction, to solve existing gear drive when breaking down, because adopting positive drive that the problem of device damage easily occurs.
For this reason; the transmission device with self-protection function that the utility model provides comprises line shaft and transmission part; it is characterized in that, between described line shaft and transmission part, be provided with the surface of contact that can produce frictional force, between line shaft and transmission part, pass through frictional force transmission.
Other technologies of the present utility model are characterized as:
Transmission end cap is installed on described line shaft, and this driving end covers and is provided with working surface one, and described transmission part is provided with working surface two, and described working surface one contacts with working surface two, and while being subject to External Force Acting, surface of contact produces frictional force.
The described transmission device with self-protection function also comprises tight-push unit, and this tight-push unit holds out against described transmission part, guarantees that described working surface one contacts and produce enough frictional force with working surface two.
Described transmission part comprises driving gear.
Described tight-push unit comprises stage clip.
Described transmission device comprises housing, driving gear, transmission end cap, line shaft and stage clip; Described line shaft is arranged on housing and through housing, and it is provided with transmission end cap through the end of going; Described driving gear is contained on line shaft, and between housing and transmission end cap; Described driving end covers and is provided with working surface one, and driving gear is provided with working surface two; The relative end, end with being provided with working surface one of described gear is provided with stage clip.
Between the line shaft of this transmission device and transmission part, be non-rigid connection, the concrete frictional force transferring power of utilizing surface of contact between the two to produce, and then by the outside transferring power of transmission part; When breaking down, because being subject to transfer slip effect between External Force Acting transmission part and line shaft, can there is not device damage; When trouble shooting, can automatically reply normal work.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is further explained to explanation.
Fig. 1 is the structure reference view of transmission device of the present utility model;
Each coded representation in figure: 1-housing, 2-driving gear, 3-transmission end cap, 4-line shaft, 5-stage clip.
Embodiment
Working surface one described in the utility model and working surface two are the surface structures that can meet transmission device work, the contact of two conical surfaces as shown in Figure 1.
embodiment:
With reference to figure 1, this embodiment's device comprises housing 1, driving gear 2, transmission end cap 3, line shaft 4, stage clip 5.
Line shaft 4 is through housing 1, and its end suitable in public is provided with transmission end cap 3, and on line shaft 4 with transmission end cap 3 joint surface Machining annular knurls, by heat pressing process, be connected with transmission end cap 3.
Driving gear 2 is contained on line shaft 4, and between housing 1 and transmission end cap 3.
Transmission end cap 3 is provided with working surface one, and driving gear 2 is provided with working surface two, and working surface one and working surface two be conical surface, and both coordinate in concavo-convex mode.
Driving gear 2 bottoms are provided with stage clip 5, and stage clip 5 one end withstand on housing 1, and the other end withstands driving gear.
Wherein driving gear 2 and line shaft 4 Spielpassung, line shaft 4 and housing 1 Spielpassung.On line shaft 4, have step to be stuck in housing 1 place, hole, line shaft 4 can not move up with respect to housing 1.
From stiction, defined, maximum static friction force is directly proportional to contact surface positive pressure, known in this model utility application by resolution of forces, stiction is also directly proportional to the elastic force of spring, utilize the frictional force transferring power between driving gear 2 and transmission end cap 3 surface of contact, by adjusting stage clip 5, be applied to the size of the pressure control frictional force on driving gear 2, by the outside transferring power of driving gear 2.
Outside driving gear 2 connects, coupling device hinders in the time of can not rotating for some reason, driving gear 2 because of resistance be greater than and transmission end cap 3 between frictional force run out of steam and stop operating, meanwhile, between driving gear 2 and transmission end cap 3, keep sliding mode, transmission end cap 3, line shaft 4 keep original rotary state.
Claims (1)
1. a transmission device with self-protection function, comprises line shaft and driving gear, it is characterized in that, is provided with the surface of contact that can produce frictional force between described line shaft and transmission part, passes through frictional force transmission between line shaft and transmission part; This transmission device also comprises housing, transmission end cap and stage clip;
Described line shaft is arranged on housing and through housing, and it is provided with transmission end cap through the end of going;
Described driving gear is contained on line shaft, and between housing and transmission end cap;
Described driving end covers and is provided with working surface one, and driving gear is provided with working surface two, and described working surface one contacts with working surface two, and while being subject to External Force Acting, surface of contact produces frictional force;
The relative end, end with being provided with working surface one of described gear is provided with stage clip, and this stage clip holds out against described transmission part, guarantees that described working surface one contacts and produce enough frictional force with working surface two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755325.1U CN203836154U (en) | 2013-11-22 | 2013-11-22 | Transmission device with self-protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755325.1U CN203836154U (en) | 2013-11-22 | 2013-11-22 | Transmission device with self-protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836154U true CN203836154U (en) | 2014-09-17 |
Family
ID=51513996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755325.1U Expired - Fee Related CN203836154U (en) | 2013-11-22 | 2013-11-22 | Transmission device with self-protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595443A (en) * | 2015-02-11 | 2015-05-06 | 济南优柏电子科技有限公司 | Method capable of synchronously and quickly transmitting linear reciprocating motion and rotation motion |
-
2013
- 2013-11-22 CN CN201320755325.1U patent/CN203836154U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595443A (en) * | 2015-02-11 | 2015-05-06 | 济南优柏电子科技有限公司 | Method capable of synchronously and quickly transmitting linear reciprocating motion and rotation motion |
| CN104595443B (en) * | 2015-02-11 | 2017-12-05 | 济南优柏电子科技有限公司 | A kind of mechanism that can simultaneously and rapidly transmit straight reciprocating motion and rotary motion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |