CN2436375Y - Safety brake mechanism - Google Patents
Safety brake mechanism Download PDFInfo
- Publication number
- CN2436375Y CN2436375Y CN 00224226 CN00224226U CN2436375Y CN 2436375 Y CN2436375 Y CN 2436375Y CN 00224226 CN00224226 CN 00224226 CN 00224226 U CN00224226 U CN 00224226U CN 2436375 Y CN2436375 Y CN 2436375Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- tooth
- bearing seat
- output shaft
- type teeth
- 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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- Braking Arrangements (AREA)
Abstract
The utility model relates to a safe braking mechanism which comprises an output shaft and a power input gear which is freely sheathed on the output shaft; a sliding sleeve is matched with an input shaft via a key or a spline and can horizontally slide, both ends of the sliding sleeve are provided with tooth inlaid type teeth, and a case body or a bearing seat is provided with the tooth inlaid type teeth. The sliding sleeve and the tooth inlaid type teeth of the bearing seat are special, so, when the sliding sleeve slides, the rotating output shaft is braked after the sliding sleeve is engaged with the bearing seat, but when the twisting of the output shaft reaches the required limit, the sliding sleeve and the bearing seat are automatically separated.
Description
At present, the brake mode of the output shaft of change-speed box has two kinds, and a kind of is outer braking, and a kind of is inside brake, and castellated brake mode is adopted in inside brake mostly.This mode exists following subject matter: the first, operation inconvenience.Machine needs emergency brake as situation in the process of advancing, machine can become quiescence by mode of operation in 0.5 second time in less than, because the existence of inertia, the tractor driver probably damages, even gets rid of.To produce very serious consequence like this.The second, because machine is short to the time of halted state by running state, and the back produces very big impulsive force, the parts generation of machine or change-speed box is impacted, even damaged, certainly will have a strong impact on the service life of machine.
The purpose of this utility model is to improve the shape of dental clutch, makes its energy self-protecting after the load that has certain impact, thereby alleviates the infringement to people and machine to greatest extent, operates more convenient reliable simultaneously.
Solution of the present utility model is:
In becoming FCL body (1), output shaft (4) two ends are respectively by bearing (6) supporting, end sky at axle (4) is overlapping power input gear (2), the centre of axle (4) is processed with key or spline, sliding sleeve (3) leans on key or spline fitted with axle (4), sliding sleeve (3) can horizontally slip on axle (4), and there is tooth embedding type tooth at sliding sleeve (3) two ends.Tooth embedding type tooth is also arranged on casing (1) or bearing seat (5).But sliding sleeve (3) is very special with the tooth embedding type tooth of bearing seat (5), and its tooth profile angle α is very big.
Fig. 1 is a safety arrestment mechanism front view.
Fig. 2 is tooth embedding type tooth profile of tooth figure.
Its principle of work is: as shown in Figure 1, when sliding sleeve was moved to the left, the engagement of the tooth embedding type tooth of its tooth embedding type tooth and power input gear (2) along with the rotation of power input gear (2), drove sliding sleeve (3) rotation, thereby drives axle (4) rotation, outputs power.
When sliding sleeve (3) when moving right, the engagement of the tooth embedding type tooth of its tooth embedding type tooth and casing (1) or bearing seat (5).Because casing (1) or bearing seat (5) maintain static, and sliding sleeve (3) is stopped the rotation, thereby output shaft (4) are braked.
When machine is braked suddenly in the course of the work, when force of inertia surpassed certain limit, at this moment, output shaft (4) bore great impact power, and when impulsive force reaches a certain amount of, sliding sleeve (3) will be moved to the left automatically, and engaging tooth is thrown off.Thereby alleviate effectively and prevent huge strong impact.
Special tooth embedding type tooth as shown in Figure 2, its tooth profile angle α is between 25 °-45 °, concrete size is calculated according to condition of service and is decided.
The tooth embedding shape engaging tooth tooth profile angle α of sliding sleeve (3) and power input gear (2) is between 0-15 °.
Claims (3)
1, a kind of safety arrestment mechanism is characterized in that: sliding sleeve (3) can be gone up at axle (4) and slide, the tooth inserted tooth engagement of sliding sleeve (3) and bearing seat (5).
2, safety arrestment according to claim 1 mechanism, it is characterized in that: the tooth embedding shape tooth tooth profile angle α of sliding sleeve (3) and bearing seat (5) is between 25 °-45 °.
3, safety arrestment according to claim 1 mechanism, it is characterized in that: the tooth embedding shape engaging tooth tooth profile angle α of sliding sleeve (3) and power input gear (2) is between 0-15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00224226 CN2436375Y (en) | 2000-02-23 | 2000-02-23 | Safety brake mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00224226 CN2436375Y (en) | 2000-02-23 | 2000-02-23 | Safety brake mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2436375Y true CN2436375Y (en) | 2001-06-27 |
Family
ID=33588638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00224226 Expired - Fee Related CN2436375Y (en) | 2000-02-23 | 2000-02-23 | Safety brake mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2436375Y (en) |
-
2000
- 2000-02-23 CN CN 00224226 patent/CN2436375Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |