CN101723079A - Propeller machine overload protection structure - Google Patents
Propeller machine overload protection structure Download PDFInfo
- Publication number
- CN101723079A CN101723079A CN200810167693A CN200810167693A CN101723079A CN 101723079 A CN101723079 A CN 101723079A CN 200810167693 A CN200810167693 A CN 200810167693A CN 200810167693 A CN200810167693 A CN 200810167693A CN 101723079 A CN101723079 A CN 101723079A
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- CN
- China
- Prior art keywords
- propeller
- pin rod
- positioning groove
- overload protection
- protection structure
- 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.)
- Pending
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- Mechanical Control Devices (AREA)
Abstract
The invention provides a propeller machine overload protection structure which comprises a pressure spring, a pressure screw cap, a transmission shaft and a pin rod, wherein the tail part of the transmission shaft is provided with a hole vertical to the axial direction, and the pin rod is inserted into the hole; the axial hole inner wall of a propeller is provided with a positioning groove; and through screwing the screw cap, the pressure spring ensures that the pin rod is pressed into the positioning groove on the propeller and pressed with the side wall of the positioning groove. When the propeller has an overload, the propeller moves towards the tail part of the transmission shaft, and the pin rod comes out of the positioning groove of the propeller so as to realize the function of overload protection. The structure changes a mode singly depending on a circuit for overload protection at present, and has simple and reliable structure and convenient maintenance.
Description
Technical field
The present invention relates to a kind of propeller machine overload protection structure.
Background technology
The screw propeller overload protection function mainly is to use circuit control at present, and there is complex structure in circuit control, the high and big shortcoming of maintenance difficulties of cost.The present invention can simplified structure as the overcurrent protection structure of screw propeller with physical construction, controls cost, and is more conducive to safeguard.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, cost is low and the propeller machine overload protection structure that helps safeguarding.
A kind of propeller machine overload protection structure of the present invention comprises screw propeller and transmission shaft, it is characterized in that also comprising holddown spring, clamping nut and pin rod, and transmission shaft afterbody direction perpendicular to axial direction has a hole, and the pin rod inserts in it; Shaft hole inner wall at screw propeller has a positioning groove, works as tightening nuts, and compression spring makes the pin rod be pressed into positioning groove, realizes the spinning movement that is connected as a single entity of transmission shaft, screw propeller, spring and pin rod.
This changing of design present screw propeller overload protection rely on the mode of circuit merely, and simple in structure, reliable, easy to maintenance.
Description of drawings
Present invention is described below in conjunction with the drawings and specific embodiments.
Fig. 1, be the scheme drawing of propeller machine overload protection structure.
Among the figure: 1, screw propeller, 2, holddown spring, 3, clamping nut, 4, transmission shaft, 5, the pin rod, 6, positioning groove.
The specific embodiment
As shown in Figure 1, the present invention includes screw propeller 1, holddown spring 2, clamping nut 3, transmission shaft 4, pin excellent 5 groups and positioning groove 6.Transmission shaft 4 afterbodys direction perpendicular to axial direction has a hole, and pin rod 5 inserts in it, at this moment transmission shaft 4 and pin rod 5 orthogonal thereto shapes.Clamping nut 3 is pressed in the positioning groove of screw propeller 1 pin rod 5 by holddown spring 2, and compress with the sidewall of positioning groove, realize screw propeller 1, pin rod 5, transmission shaft 4 location, screw propeller 1, holddown spring 2, clamping nut 3, transmission shaft 4 are connected as a single entity with pin rod 5 rotate with the axis.After overload appearred in screw propeller 1, screw propeller moved to clamping nut 3 directions, and holddown spring 2 pushes back to clamping nut 3 directions, and pin rod 5 is deviate from from screw propeller 1 positioning groove, realizes overload protection function.
Pin rod 5 can be cylinder, and its diameter generally can be from φ 3mm～φ 20mm according to definite according to propeller size; Positioning groove can be semicylinder; When pin rod 5 was cylinder, the degree of depth of positioning groove 6 equaled the radius of pin rod 5.The length of positioning groove 6 is preferably consistent with the length that pin rod 5 exposes.
Claims (5)
1. a propeller machine overload protection structure comprises screw propeller and transmission shaft, it is characterized in that also comprising holddown spring, clamping nut and pin rod, and transmission shaft afterbody direction perpendicular to axial direction has a hole, and the pin rod inserts in it; Shaft hole inner wall at screw propeller has a positioning groove, works as tightening nuts, and compression spring makes the pin rod be pressed into positioning groove, realizes the spinning movement that is connected as a single entity of transmission shaft, screw propeller, spring and pin rod.
2. propeller machine overload protection structure according to claim 1 is characterized in that the pin rod is cylinder.
3. propeller machine overload protection structure according to claim 1 and 2 is characterized in that positioning groove is a semicylinder.
4. propeller machine overload protection structure according to claim 3 is characterized in that the degree of depth of positioning groove equals the radius of pin rod.
5. according to claim 1 described propeller machine overload protection structure, it is characterized in that the length of positioning groove is consistent with the length that the pin rod exposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810167693A CN101723079A (en) | 2008-10-22 | 2008-10-22 | Propeller machine overload protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810167693A CN101723079A (en) | 2008-10-22 | 2008-10-22 | Propeller machine overload protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101723079A true CN101723079A (en) | 2010-06-09 |
Family
ID=42444776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810167693A Pending CN101723079A (en) | 2008-10-22 | 2008-10-22 | Propeller machine overload protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101723079A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097926A (en) * | 2017-04-26 | 2017-08-29 | 哈尔滨工程大学 | A kind of shaft end connecting connection parts for preventing that propeller from damaging after being wound |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6253296A (en) * | 1985-08-30 | 1987-03-07 | Yanmar Diesel Engine Co Ltd | Ship propeller |
| CN1084130A (en) * | 1992-09-11 | 1994-03-23 | 虞锦芳 | Screw propeller |
| US6354802B1 (en) * | 2000-04-11 | 2002-03-12 | Bombardier Motor Corporation Of America | Propeller assembly including a spiral wound spring |
| WO2004039669A1 (en) * | 2002-11-01 | 2004-05-13 | Engbo As | Mounting of a propeller |
-
2008
- 2008-10-22 CN CN200810167693A patent/CN101723079A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6253296A (en) * | 1985-08-30 | 1987-03-07 | Yanmar Diesel Engine Co Ltd | Ship propeller |
| CN1084130A (en) * | 1992-09-11 | 1994-03-23 | 虞锦芳 | Screw propeller |
| US6354802B1 (en) * | 2000-04-11 | 2002-03-12 | Bombardier Motor Corporation Of America | Propeller assembly including a spiral wound spring |
| WO2004039669A1 (en) * | 2002-11-01 | 2004-05-13 | Engbo As | Mounting of a propeller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097926A (en) * | 2017-04-26 | 2017-08-29 | 哈尔滨工程大学 | A kind of shaft end connecting connection parts for preventing that propeller from damaging after being wound |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100609 |