CN202274004U - Pin-breaking protective device of mechanical transmission shaft - Google Patents
Pin-breaking protective device of mechanical transmission shaft Download PDFInfo
- Publication number
- CN202274004U CN202274004U CN2011203354527U CN201120335452U CN202274004U CN 202274004 U CN202274004 U CN 202274004U CN 2011203354527 U CN2011203354527 U CN 2011203354527U CN 201120335452 U CN201120335452 U CN 201120335452U CN 202274004 U CN202274004 U CN 202274004U
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- CN
- China
- Prior art keywords
- transmission shaft
- pin
- breaking
- driving side
- signal screw
- 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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Abstract
The utility model discloses a pin-breaking protective device of a mechanical transmission shaft. A safety pin (2) is disposed between a transmission shaft driving side (3) and a transmission shaft device side (1) in a radial manner. The utility model is characterized in that the transmission shaft driving side (3) is provided with a hollow structure, and a pin-breaking signal screw (4) is disposed in the hollow structure of the transmission shaft driving side (3); one end of the pin-breaking signal screw (4) is connected with the transmission shaft device side (1); the pin-breaking signal screw (4) and the transmission shaft driving side (3) are in a threaded connection in a negative direction, the pin-breaking signal screw (4) and the transmission shaft device side (1) are in a threaded connection in a negative direction. By using the device provided in the utility model, the fault rotation state of the mechanical device after the pin breaking can be changed into a straight stroke state facilitating the monitoring, the pin-breaking signals of the pin-breaking protective device can be converted into the electrical signals conveniently, and then the pin-breaking signals can be acquired and monitored in a centralized manner, besides, the use and the maintenance efficiency of the device can be improved.
Description
Technical field
The utility model relates to the driving protection device of mechanical drive shaft, is specifically related to a kind of break-off protecting device of mechanical drive shaft.
Background technique
In the machinery design is transferring power, often adopts various forms of transmission shafts; When the design transmission shaft,, can safety pin be set at the correct position of transmission shaft usually for avoiding the damage of machinery and drive unit.When situation such as equipment windrow, stall takes place when, driving torque surpass safety pin bear the limit time, shear pin breakage, the driving side of transmission shaft and equipment side disengaging reach purpose of safe operation.But because safety pin is located on the transmission shaft, be in rotation status during operation, its working state signal is difficult for gathering, and only can adopt the range estimation mode, is not easy to the equipment operation and maintenance.
Summary of the invention
In order to overcome the deficiency of existing technology, the utility model provides a kind of break-off protecting device of mechanical drive shaft, and this device can in time reflect the fault message behind the disconnected pin of machinery, thereby improves the efficient of equipment operation and maintenance.
For realizing the foregoing invention purpose, the utility model adopts the technological scheme that is described below:
A kind of break-off protecting device of mechanical drive shaft, between transmission shaft driving side and transmission shaft equipment side between, radial position is provided with safety pin; Said transmission shaft driving side is set to hollow-core construction, and disconnected pin signal screw rod is arranged in the transmission shaft driving side hollow-core construction, and disconnected pin signal screw rod one end links to each other with the transmission shaft equipment side; Said disconnected pin signal screw rod is threaded for opposite direction with transmission shaft driving side, transmission shaft equipment side.
Be better implement the invention, said disconnected pin signal screw rod the other end circumferential position place is provided with near switch or position limit switch.
Because adopt aforesaid technological scheme, the invention has following superiority:
When the equipment stall and when causing shear pin breakage, the transmission shaft equipment side stops operating, and the transmission shaft driving side still continues rotation, and then disconnected pin signal screw rod is driven to rotate; Because disconnected pin signal screw rod is that direction is threaded with transmission shaft driving side, transmission shaft equipment side; Disconnected pin signal screw rod axially moves along transmission shaft when rotated; Then the state of shear pin breakage is converted into the rectilinear path state of disconnected pin signal screw rod, is convenient to detect.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure: 1-transmission shaft equipment side; The 2-safety pin; 3-transmission shaft driving side; The disconnected pin of 4-signal screw rod; 5-is near switch.
Embodiment
Below in conjunction with preferred implementation the invention is further specified, what need to stress is, innovation and creation of the present invention are not limited to following mode of execution, and any structure that does not break away from or be equal to the invention is provided with all within the protection domain of the invention.
In conjunction with Fig. 1, a kind of break-off protecting device of mechanical drive shaft, between transmission shaft driving side 3 and transmission shaft equipment side between 1, radial position is provided with safety pin 2; Wherein, transmission shaft driving side 3 is set to hollow-core construction, and disconnected pin signal screw rod 4 is arranged in the transmission shaft driving side hollow-core construction, and disconnected pin signal screw rod 4 one ends link to each other with transmission shaft equipment side 1; Specifically be that disconnected pin signal screw rod 4 is threaded for opposite direction with transmission shaft driving side 3, transmission shaft equipment side 1.The place is provided with near switch 5 or position limit switch at disconnected pin signal screw rod the other end circumferential position,
When equipment normally moved, transmission shaft driving side and transmission shaft equipment side were in the same way, speed is moved together, and n1 and n2 equate; When equipment windrow, stall took place, n2 moment was fallen vanishing, and transmission shaft driving side 3 continues rotation, and transmission shaft produces the moment of torsion that transfinites, safety pin 2 fractures; After the shear pin breakage; Transmission shaft driving side 3 continues to rotate with n1 speed; And transmission shaft equipment side 1 stops operating; Because disconnected pin signal screw rod 4 is to be threaded in the other direction with transmission shaft driving side 3, transmission shaft equipment side 1, transmission shaft outwards screws out disconnected pin signal screw rod 4 in the effect lower edge of rotation torque, screws out stroke is stretched into transmission shaft equipment side 3 by the pin signal screw rod 4 that breaks length decision; After disconnected pin signal screw rod 4 stretches out transmission shaft, can collect disconnected pin trouble signal near electric signal collecting devices such as switch or position limit switches, automatical control system can be shut down according to this signal and waited protection to move.
This embodiment is through being provided with disconnected pin signal screw rod; Convert the fault rotation status behind the disconnected pin of machinery into be beneficial to monitoring straight journey state; Make the disconnected pin signal of break-off protecting device can be converted into electric signal easily; Then disconnected pin signal is concentrated collection, Centralized Monitoring, improve the operation and maintenance efficient of equipment.
Claims (2)
1. the break-off protecting device of a mechanical drive shaft, between transmission shaft driving side (3) and transmission shaft equipment side (1) between, radial position is provided with safety pin (2); It is characterized in that: said transmission shaft driving side (3) is set to hollow-core construction, and disconnected pin signal screw rod (4) is arranged in the transmission shaft driving side hollow-core construction, and disconnected pin signal screw rod (4) one ends link to each other with transmission shaft equipment side (1); Said disconnected pin signal screw rod (4) is threaded for opposite direction with transmission shaft driving side (3), transmission shaft equipment side (1).
2. the break-off protecting device of mechanical drive shaft according to claim 1, said disconnected pin signal screw rod (4) the other end circumferential position place is provided with near switch or position limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203354527U CN202274004U (en) | 2011-09-08 | 2011-09-08 | Pin-breaking protective device of mechanical transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203354527U CN202274004U (en) | 2011-09-08 | 2011-09-08 | Pin-breaking protective device of mechanical transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274004U true CN202274004U (en) | 2012-06-13 |
Family
ID=46194365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203354527U Expired - Fee Related CN202274004U (en) | 2011-09-08 | 2011-09-08 | Pin-breaking protective device of mechanical transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916309A (en) * | 2012-10-29 | 2013-02-06 | 北京首钢自动化信息技术有限公司 | Monitoring motor-load connector switching-off device and switching-off method thereof |
-
2011
- 2011-09-08 CN CN2011203354527U patent/CN202274004U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916309A (en) * | 2012-10-29 | 2013-02-06 | 北京首钢自动化信息技术有限公司 | Monitoring motor-load connector switching-off device and switching-off method thereof |
| CN102916309B (en) * | 2012-10-29 | 2014-10-08 | 北京首钢自动化信息技术有限公司 | Monitoring motor-load connector switching-off device and switching-off method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20160908 |