CN203082152U - Overload-protection double-side gear transmission device - Google Patents
Overload-protection double-side gear transmission device Download PDFInfo
- Publication number
- CN203082152U CN203082152U CN 201220587670 CN201220587670U CN203082152U CN 203082152 U CN203082152 U CN 203082152U CN 201220587670 CN201220587670 CN 201220587670 CN 201220587670 U CN201220587670 U CN 201220587670U CN 203082152 U CN203082152 U CN 203082152U
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- CN
- China
- Prior art keywords
- gear
- transmission device
- transmission
- stage shaft
- eccentricity
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- 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 relates to an over-load double-side gear transmission device belongs to the field of press machine transmission apparatuses. The transmission device comprises an eccentric gear, one end of the eccentric gear is provided with a stage shaft protruding outwards, the stage shaft contracts in a taper manner towards the end direction, a transmission gear symmetrical in gear form with the eccentric gear is in coordinating connection on the stage shaft and is pressed and fixed through a press cap fixed on the end part of the stage shaft, and a displacement sensor for detecting relative displacement of the press cap and the transmission gear is arranged on the press cap. With adoption of the transmission device provided by the utility model, when the transmission torque suddenly increases and becomes larger than the tight locking force of the joint part of the transmission gear and the eccentric gear, relative sliding between the two gears will occur along the taper face of the stage shaft, the displacement sensor will send out an alarm signal to a machine tool control system after detecting the relative sliding, and the machine tool will stop, thereby realizing overload protection of the double-side gear transmission device, and preventing the gear device from being damaged.
Description
Technical field
The utility model relates to the driver of press field, particularly a kind of overload protection bilateral gear transmission device.
Background technique
Crank rod movement is to rotate by the motor drives flywheel, and flywheel drives eccentricity gear by driving gear and rotates, and eccentricity gear is again by eccentric shaft drivening rod pumping with the realization slide block.In this structure, the bilateral gear structure that driving gear and eccentricity gear are formed generally adopts integrated type or split type rigidity structure.All-in-one-piece bilateral gear structure in the transmission, when driving torque becomes big suddenly, is damaged the gear teeth easily.In the split type bilateral gear drive mechanism, driving gear generally adopts fixing pin to fixedly connected with eccentricity gear, as shown in Figure 1.This Placement is for being rigidly connected, and intensity height, but mounting or dismounting are more loaded down with trivial details when eccentricity gear passes to the moment of torsion of driving gear when excessive, tends to cause the fracture of fixing pin and/or damages the gear teeth.
The model utility content
The utility model provides a kind of overload protection bilateral gear transmission device at the problem that prior art exists, and is intended to prevent the damage of bilateral gear transmission device overload, the working life of improving bilateral gear.
The purpose of this utility model is to realize like this; a kind of overload protection bilateral gear transmission device; comprise eccentricity gear; described eccentricity gear one end is provided with the step axle that protrudes outward; the tapered contraction of described step axial end portion direction; be connected with on the described step axle with the driving gear of the profile of tooth symmetry of eccentricity gear and by the gland that is fixed on the step shaft end and be fixed, described gland is provided with the displacement transducer that is used to detect gland and driving gear relative displacement.
In the device of the present utility model, after being connected, the awl end of driving gear and eccentricity gear step axle is fixed by the gland that is fixed on the eccentricity gear axle head.In the transmission; when driving torque increases suddenly; if moment of torsion is greater than the coupling mechanism force of driving gear and eccentricity gear joint; two gears will be along the conical surface generation slide relative of step axle; the displacement driver will send alarm signal to machine tool control system after detecting this relative displacement; lathe is shut down, thereby realizes the overload protection to the bilateral gear transmission device, avoids gearing to damage.
For improving the precision of transmission device, described eccentricity gear is an eccentric helical gear.
Description of drawings
Fig. 1 is the schematic representation of split type bilateral gear transmission device of the prior art.
Fig. 2 is the schematic representation of overload protection bilateral gear transmission device of the present utility model.
Wherein, 1 driving gear; 2 eccentricity gears; 2a step axle; 3 glands; 4 displacement transducers.
Embodiment
Be illustrated in figure 2 as overload protection bilateral gear transmission device of the present utility model, comprise eccentricity gear 2, eccentricity gear 2 one ends are provided with the step axle 2a that protrudes outward, step axle 2a is to the tapered contraction of end direction, be connected with on the step axle 2a with the driving gear 1 of the profile of tooth symmetry of eccentricity gear 2 and by the gland 3 that is fixed on step axle 2a end and be fixed, gland 3 is provided with the displacement transducer 4 that is used to detect gland 3 and driving gear 1 relative displacement; Wherein, eccentricity gear is 2 eccentric helical gears, and driving gear 1 is and eccentricity gear 2 profiles of tooth symmetry helical gear; In the assembling, after being connected, the awl end of the step axle 2a of driving gear 1 and eccentricity gear 2 is fixed by gland, and gland and the locking of eccentricity gear step axle 2a end employing screw.
In the transmission; when driving torque increases suddenly; if moment of torsion is greater than the coupling mechanism force of driving gear 1 and eccentricity gear 2 joints; two gears will be along the conical surface generation slide relative of step axle 2a; displacement driver 4 will send alarm signal to machine tool control system after detecting this relative displacement; lathe is shut down, thereby realizes the overload protection to the bilateral gear transmission device, avoids gearing to damage.
Claims (2)
1. overload protection bilateral gear transmission device; comprise eccentricity gear; it is characterized in that; described eccentricity gear one end is provided with the step axle that protrudes outward; the tapered contraction of described step axial end portion direction; be connected with on the described step axle with the driving gear of the profile of tooth symmetry of eccentricity gear and by the gland that is fixed on the step shaft end and be fixed, described gland is provided with the displacement transducer that is used to detect gland and driving gear relative displacement.
2. overload protection bilateral gear transmission device according to claim 1 is characterized in that described eccentricity gear is an eccentric helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587670 CN203082152U (en) | 2012-11-09 | 2012-11-09 | Overload-protection double-side gear transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587670 CN203082152U (en) | 2012-11-09 | 2012-11-09 | Overload-protection double-side gear transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082152U true CN203082152U (en) | 2013-07-24 |
Family
ID=48827993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220587670 Expired - Fee Related CN203082152U (en) | 2012-11-09 | 2012-11-09 | Overload-protection double-side gear transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913018A (en) * | 2015-05-11 | 2015-09-16 | 上海宇航系统工程研究所 | Driving device with energy consumption buffering function |
-
2012
- 2012-11-09 CN CN 201220587670 patent/CN203082152U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913018A (en) * | 2015-05-11 | 2015-09-16 | 上海宇航系统工程研究所 | Driving device with energy consumption buffering function |
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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: 20130724 Termination date: 20151109 |
|
| EXPY | Termination of patent right or utility model |