CN204358049U - A kind of spiral toothed chain retarder - Google Patents
A kind of spiral toothed chain retarder Download PDFInfo
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- CN204358049U CN204358049U CN201420858651.XU CN201420858651U CN204358049U CN 204358049 U CN204358049 U CN 204358049U CN 201420858651 U CN201420858651 U CN 201420858651U CN 204358049 U CN204358049 U CN 204358049U
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- gear ring
- spiral
- output shaft
- transmitted chains
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Abstract
The utility model discloses a kind of spiral toothed chain retarder, comprise housing and be all fixed on input shaft and the output shaft of enclosure interior by bearing, it is characterized in that, also comprise the gear ring, the profile of tooth Transmitted chains that are arranged on enclosure interior, described input shaft is meshed with the external tooth of gear ring by the cylindrical gears of self, and the inwall of described gear ring offers spiral tooth thread; Described profile of tooth gearing chain ring is enclosed between gear ring and output shaft, and namely described profile of tooth Transmitted chains one side is meshed with the spiral tooth thread of gear ring, and another side then screws mutually with the external spiral gear teeth face of output shaft self.The utility model has high flank engagement rate, greatly reduce flank of tooth extrusion stress thus establish good lubricant film, improve its transmission efficiency and life-span, reduce and wear away, the driving torque that super large transmission is when extremely strong and rigidity, and the features such as volume is little, compact structure, stable drive.
Description
Technical field
The utility model relates to mechanical reducer, specifically a kind of spiral toothed chain retarder.
Background technique
High-power, big speed ratio mechanical reducer at present, single staged transmission ratio scope is little, volume bulkiness, and design velocity ratio is subject to number of teeth impact, carries year number of teeth few, and its Tooth Surface bearing strength test is large, and lubricant film condition is poor, and the life-span is short.
In prior art, mechanical reducer, gear transmission at different levels is linear contact lay, so in operation process, its transmission engaging tooth is also less than two teeth at most, and bearing strength test is large, lubricant film condition is poor, can serious wear be caused, wasted work is high, the phenomenon of service life reduction, to such an extent as to cause the maintenance cost in later stage to increase, and be difficult to produce larger velocity ratio, if think the transmission that acquisition one is large, need the performance improving component, result in the increase of manufacture cost and the difficulty of technique.Another one defect, design velocity ratio is subject to number of teeth impact.
Model utility content
The purpose of this utility model is to provide a kind of spiral toothed chain retarder, have high speed level outer gearing transmission, in, the large contact-ratio feature of slow speed turbine stage, design principle distribute select splendid, the real revolution for large speed ratio deceleration.
In order to reach above-mentioned purpose, the utility model have employed following technological scheme, a kind of spiral toothed chain retarder, comprise housing and be all fixed on input shaft and the output shaft of enclosure interior by bearing, also comprise the gear ring, the profile of tooth Transmitted chains that are arranged on enclosure interior, described input shaft is meshed with the external tooth of gear ring by the cylindrical gears of self, and the inwall of described gear ring offers spiral tooth thread; Described profile of tooth gearing chain ring is enclosed between gear ring and output shaft, and namely described profile of tooth Transmitted chains one side is meshed with the spiral tooth thread of gear ring, and another side then screws mutually with the external spiral gear teeth face of output shaft self.
Described profile of tooth Transmitted chains is formed by pinned connection by multiple strand, described strand is circular arc product word structure, strand outer arced surface offers convex surface screw thread, in order to be meshed with the spiral tooth thread of gear ring, strand intrados offers concave surface screw thread, in order to screw mutually with the external spiral gear teeth face of output shaft self, the mode offered as two-sided space intersection each other of described convex surface screw thread and concave surface screw thread.
Described profile of tooth Transmitted chains is circulation closed chain and at least arranges one.
The enclosure interior being positioned at gear ring periphery position forms O die cavity, in the space of the O die cavity of described profile of tooth Transmitted chains circular flow between gear ring and output shaft and outside gear ring.
Described gear ring marginal end is fixed with a C type guide plate towards the direction of O die cavity, and described profile of tooth Transmitted chains is run on C type guide plate by laminating after gear ring and output shaft release.
Compared to prior art, the utility model has following beneficial effect:
The utility model has high flank engagement rate (the full-depth tooth face transferring power of several work teeth of gear, greatly reduce flank of tooth extrusion stress thus establish good lubricant film, reduce gearing friction coefficient, improve its transmission efficiency and life-span, reduce and wear away, the driving torque that super large transmission is when extremely strong and rigidity, and the features such as volume is little, compact structure, stable drive.In addition, design big speed ratio do not affect by the number of teeth, and velocity ratio can infinity and non-integer compare transmission.
Accompanying drawing explanation
Fig. 1 is the main pseudosection of a kind of spiral toothed chain retarder of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3, Fig. 4, Fig. 5 are plan view, left view, the plan view of the strand of profile of tooth Transmitted chains respectively;
Fig. 6 is the structural drawing of C type guide plate.
In figure, 1, input shaft; 2 gear rings; 3, profile of tooth Transmitted chains; 4, output shaft; 5, housing; 6, bearing pin; 7, C type guide plate; 8, convex surface screw thread; 9, concave surface screw thread.
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the utility model.
According to Fig. 1-6, a kind of spiral toothed chain retarder, comprise housing 5 and be all fixed on input shaft 1 and the output shaft 4 of enclosure interior by bearing, also comprise the gear ring 2, the profile of tooth Transmitted chains 3 that are arranged on enclosure interior, input shaft is meshed with the external tooth of gear ring by the cylindrical gears of self, and the inwall of gear ring offers spiral tooth thread; Profile of tooth Transmitted chains 3 ring set is between gear ring 2 and output shaft 4, and namely described profile of tooth Transmitted chains one side is meshed with the spiral tooth thread of gear ring, and another side then screws mutually with the external spiral gear teeth face of output shaft self.Profile of tooth Transmitted chains is formed by connecting by bearing pin 6 by multiple strand, strand is circular arc product word structure, strand outer arced surface offers convex surface screw thread 8, in order to be meshed with the spiral tooth thread of gear ring, strand intrados offers concave surface screw thread 9, in order to screw mutually with the external spiral gear teeth face of output shaft self, the mode offered as two-sided space intersection each other of described convex surface screw thread and concave surface screw thread.
The enclosure interior being positioned at gear ring periphery position forms O die cavity, profile of tooth Transmitted chains is circulation closed chain and at least arranges one, 5 are provided with in the present embodiment, simultaneously corresponding O die cavity also offers 5, in the space of the O die cavity of described profile of tooth Transmitted chains circular flow between gear ring and output shaft and outside gear ring.Described gear ring marginal end is fixed with a C type guide plate 7 towards the direction of O die cavity, and described profile of tooth Transmitted chains is run on C type guide plate by laminating after gear ring and output shaft release.
Operating principle: in housing 5 geometric functions body chamber, input shaft 1 (cylindrical gears) drives gear ring 2 (inwall is spiral tooth thread) to do one and is rotated in deceleration, simultaneously, the inwall of gear ring 2 is that spiral tooth thread drives the outer convex surface screw thread of profile of tooth Transmitted chains 3 (two-sided space intersection each other) to do a wedge shape transmission, it is made to run along rotational axis, circular flow between 0 die cavity and C type guide plate 7 of part housing 5 simultaneously, thus, the inner concave screw thread of profile of tooth Transmitted chains 3 (two-sided space intersection each other) and the output shaft 4 external spiral flank of tooth screw and do a wedge shape transmission, now, output shaft 4 does autologous axle center and rotates output.Housing 5 can be provided with multiple profile of tooth Transmitted chains 3 (two-sided space intersection each other) O type circulation drive cavity and corresponding part C type guide plate 7 in body, and composition has reaction force and guiding ringing when support profile of tooth Transmitted chains 3 (two-sided space intersection each other) works.The lift angle that velocity ratio is spiral tooth thread by inside and outside wall is selected arbitrarily, the velocity ratio that very easily composition is larger arbitrarily, and volume compact.
Due to profile of tooth Transmitted chains 3 (two-sided space intersection each other) transmission, this flexible driving band, real-time ring set is between gear ring 2 (inwall is spiral tooth thread) and output shaft 4 (external spiral gear), form full-depth tooth face cuniform increase power gearing effects, be the contact of full arc face, realize multiple tooth and carry its transmission load simultaneously, therefore flank of tooth stress is little simultaneously, lubricant film is evenly complete, achieves the long lifetime in life-span; Velocity ratio is large, transmission efficiency is high, rotational noise is low.
When profile of tooth Transmitted chains 3 (two-sided space intersection each other) transmission, profile of tooth Transmitted chains 3 (two-sided space intersection each other) ring set is between gear ring 2 (inwall is spiral tooth thread) and output shaft 4 (external spiral gear), the outside thread (convex surface) of profile of tooth Transmitted chains 3 (two-sided space intersection each other) and part gear ring 2 (inwall is spiral tooth thread) are screwed, internal thread (concave surface) and output shaft 4 (external spiral gear) flank of tooth screw it and engage or screw lead angle and can select arbitrarily, a new route is opened for realizing super large velocity ratio, velocity ratio can also to have and arbitrarily than transmission simultaneously in infinity.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. a spiral toothed chain retarder, comprise housing and be all fixed on input shaft and the output shaft of enclosure interior by bearing, it is characterized in that, also comprise the gear ring, the profile of tooth Transmitted chains that are arranged on enclosure interior, described input shaft is meshed with the external tooth of gear ring by the cylindrical gears of self, and the inwall of described gear ring offers spiral tooth thread; Described profile of tooth gearing chain ring is enclosed between gear ring and output shaft, and namely described profile of tooth Transmitted chains one side is meshed with the spiral tooth thread of gear ring, and another side then screws mutually with the external spiral gear teeth face of output shaft self.
2. a kind of spiral toothed chain retarder according to claim 1, it is characterized in that, described profile of tooth Transmitted chains is formed by pinned connection by multiple strand, described strand is circular arc product word structure, strand outer arced surface offers convex surface screw thread, and in order to be meshed with the spiral tooth thread of gear ring, strand intrados offers concave surface screw thread, in order to screw mutually with the external spiral gear teeth face of output shaft self, the mode offered as two-sided space intersection each other of described convex surface screw thread and concave surface screw thread.
3. a kind of spiral toothed chain retarder according to claim 1, it is characterized in that, described profile of tooth Transmitted chains is circulation closed chain and at least arranges one.
4. a kind of spiral toothed chain retarder according to claim 1, it is characterized in that, the enclosure interior being positioned at gear ring periphery position forms O die cavity, in the space of the O die cavity of described profile of tooth Transmitted chains circular flow between gear ring and output shaft and outside gear ring.
5. a kind of spiral toothed chain retarder according to claim 4, is characterized in that, described gear ring marginal end is fixed with a C type guide plate towards the direction of O die cavity, and described profile of tooth Transmitted chains is run on C type guide plate by laminating after gear ring and output shaft release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858651.XU CN204358049U (en) | 2014-12-30 | 2014-12-30 | A kind of spiral toothed chain retarder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858651.XU CN204358049U (en) | 2014-12-30 | 2014-12-30 | A kind of spiral toothed chain retarder |
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| Publication Number | Publication Date |
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| CN204358049U true CN204358049U (en) | 2015-05-27 |
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| CN201420858651.XU Active CN204358049U (en) | 2014-12-30 | 2014-12-30 | A kind of spiral toothed chain retarder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534045B (en) * | 2014-12-30 | 2017-01-04 | 田达 | A kind of spiral toothed chain decelerator |
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2014
- 2014-12-30 CN CN201420858651.XU patent/CN204358049U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534045B (en) * | 2014-12-30 | 2017-01-04 | 田达 | A kind of spiral toothed chain decelerator |
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