CN203161997U - Azimuth angle transmission device of heliostat - Google Patents
Azimuth angle transmission device of heliostat Download PDFInfo
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- CN203161997U CN203161997U CN 201320164948 CN201320164948U CN203161997U CN 203161997 U CN203161997 U CN 203161997U CN 201320164948 CN201320164948 CN 201320164948 CN 201320164948 U CN201320164948 U CN 201320164948U CN 203161997 U CN203161997 U CN 203161997U
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Abstract
The utility model discloses an azimuth angle transmission device of a heliostat. The azimuth angle transmission device comprises a main box, a worm and gear mechanism, a driving motor, an inner gear ring, a planet carrier, a planet gear component and an output flange, wherein the worm and gear mechanism is arranged in the main box, and a worm gear component of the worm and gear mechanism is coaxially connected with an output stage sun wheel shaft; the driving motor is connected with a worm shaft of the worm and gear mechanism through a gear reducer; the inner gear ring is arranged in the main box; the planet carrier is rotationally arranged on the main box; a planet gear shaft is arranged on the planet carrier; the planet gear component is rotationally arranged on the planet gear shaft and meshed with the inner gear ring and a sun wheel on the output stage sun wheel shaft respectively; and the output flange is connected with the planet carrier. By means of the azimuth angle transmission device, the problem that the positioning accuracy is influenced by larger size, larger stress and serious long-time running abrasion which are caused due to the fact that a worm and gear pair is taken as an output stage is solved.
Description
Technical field
The utility model relates to solar energy tower type power generation system technical field, more particularly, relates to a kind of heliostat azimuth gear.
Background technique
The solar energy tower type power generation applications be tower system, tower system claims central system again.It is in very large-area place many large-sized solar reflectors to be housed, and is commonly referred to heliostat, all is furnished with follower separately for every and accurately the sunlight reflection is focused on the receiver of a high top of tower.Optically focused multiplying power on the receiver can be above 1000 times.The solar energy that absorbs is changed into heat energy here, heat energy is passed to the mobile working medium in the receiver pipeline again, the working medium kind can be: water, conduction oil, fused salt, air etc.
Working medium is example with water, when water be heated be warmed up to several Baidu after, just be sent in the high temperature storage tank and store.In the needs generating, generate high pressure steam promotion steam turbine generator set by steam generator and generate electricity.Afterheat steam after the generating, be transported to be cooled to water in the condenser after, send back to low-temperature storage tank again and store.Arrive this, just finished a working medium cycle period.Because the parameter of tower type solar energy thermal power generation can be consistent with high temperature, high-pressure fire power station, so not only make solar power station that the higher thermal efficiency is arranged, and obtain corollary equipment easily, also can with the thermoelectricity auxiliary construction.The result of study that U.S. Department of Energy is presided over shows: aspect extensive generating, tower type solar energy thermal power generation will be the minimum a kind of modes of all solar energy generation technology costs.
Heliostat is a kind of optical block of being made up of minute surface (reflector), mirror holder (supporting structure), tracking drive device and control system thereof, is one of main device of tower type solar energy thermal power generation, and its expenditure of construction accounts for half of power station gross investment greatly.Tracking drive device is responsible for motion and the location of heliostat in the heliostat system, be the parts of most critical in the heliostat, also is the highest parts of cost.Its performance has directly determined the tracking accuracy of heliostat, thereby influences the gathering of solar energy and even the generating efficiency of whole system.Tracking drive device is generally two-part to be formed, and namely is made up of level (azimythal angle driving mechanism) and two accurate transmission mechanisms of pitching (pitching angle driving mechanism), can realize that big retarding is than the accurate location of omnidirectional tracking.Because the minor variations of mirror position all will cause the deviation of assembling in the heat collector generation in a big way of hot spot outside hundreds of rice, therefore transmission accuracy and the return difference to whole device requires all very strict.
The output flange axis of azimuth gear is perpendicular to the ground, and output flange drives minute surface by mirror holder and realizes the azimythal angle tracking sun.Main solution is " multistage planet deceleration component+worm couple+worm gear anti-backlash mechanism " both at home and abroad at present, existing application case, but worm couple is bigger as the output stage volume, and stressed bigger, the long-time running wearing and tearing are big, influence Location accuracy.
In addition, baroque worm gear anti-backlash mechanism has reduced the efficient of system, and spring-like worm gear anti-backlash mechanism simple in structure can produce fatigue failure, poor durability after repeatedly using repeatedly.
Therefore, how to avoid because the volume that worm couple brings as output stage is bigger, stressed bigger, the long-time running wearing and tearing are big, influence the problem of Location accuracy, become the technical problem that those skilled in the art need to be resolved hurrily.
The model utility content
In view of this, the purpose of this utility model is to provide a kind of heliostat azimuth gear, because the volume that worm couple brings as output stage is bigger, stressed bigger, the long-time running wearing and tearing are big to avoid, and influence the problem of Location accuracy.
For achieving the above object, the utility model provides following technological scheme:
A kind of heliostat azimuth gear comprises:
Total casing;
Be arranged at the worm-and-wheel gear in described total casing, be coaxially connected with the output stage sun wheel shaft on the Worm-gear assembly of described worm-and-wheel gear;
Drive motor, described drive motor links to each other with the worm shaft of described worm-and-wheel gear by speed reducer;
Be arranged at the ring gear in described total casing;
Be arranged at the planet carrier on described total casing rotationally, described planet carrier is provided with planet wheel shaft;
Be arranged at the planetary wheeling assembly on the described planet wheel shaft rotationally, described planetary wheeling assembly respectively with described ring gear and described output stage sun wheel shaft on sun gear engagement;
With the output flange that described planet carrier is connected, described output flange links to each other with described total casing rotationally.
Preferably, in above-mentioned heliostat azimuth gear, an end of described output stage sun wheel shaft by roller bearings on described total casing, the other end by roller bearings on described planet carrier.
Preferably, in above-mentioned heliostat azimuth gear, described planetary wheeling assembly comprises:
Be arranged at the planet wheel on the described planet wheel shaft rotationally, the edge, outer ring of described planet wheel has annular mounting groove;
Be sheathed on the crack gear ring that disappears in the described annular mounting groove, the described crack gear ring that disappears is arranged on the described planet wheel by torsional pin, and the gear teeth of the gear teeth of the described crack gear ring that disappears and described planet wheel are formed the gear teeth of described planetary wheeling assembly.
Preferably, in above-mentioned heliostat azimuth gear, the diameter of described planetary wheeling assembly is greater than the diameter of the sun gear on the described output stage sun wheel shaft.
Preferably, in above-mentioned heliostat azimuth gear, described planet carrier is connected by screw with described output flange.
Preferably, in above-mentioned heliostat azimuth gear, also comprise the cover plate assembly that is connected by screw with described total casing, described output flange links to each other with described cover plate assembly by bearing.
Preferably, in above-mentioned heliostat azimuth gear, described speed reducer is the multistage planet reducing gear.
Preferably, in above-mentioned heliostat azimuth gear, the casing of described speed reducer is connected on described total casing by bolt.
Preferably, in above-mentioned heliostat azimuth gear, described drive motor is connected on the casing of described speed reducer by flange.
Preferably, in above-mentioned heliostat azimuth gear, described worm shaft is hard flank of tooth involute cylindrical worm;
Described planetary wheeling assembly is hard flank of tooth planet wheel;
Described output stage sun wheel shaft is hard flank of tooth output stage sun wheel shaft.
From above-mentioned technological scheme as can be seen, the heliostat azimuth gear that the utility model provides, drive motor is given speed reducer with transmission of power, and by after the deceleration of speed reducer realization than large speed ratio, pass to worm-and-wheel gear, this worm-and-wheel gear carries out second time big retarding than slowing down, and worm-and-wheel gear have can reverse self-locking function.The transmission of power of worm-and-wheel gear is given the output stage sun wheel shaft, sun gear on the output stage sun wheel shaft drives planetary wheeling assembly and revolves round the sun around it, planetary wheeling assembly is in the process of output stage sun wheel shaft revolution, the drive planet carrier rotates, planet carrier drives output flange and rotates, and by output flange power is spread out of.
Therefore output stage of the present utility model is planetary stage gear pair (output stage sun wheel shaft, planetary wheeling assembly, planet carrier and ring gear), the planet carrier outputting power.This gear pair output speed is low especially, and swell increment is small ignores for gear heating, and is by roll flute that gear-pair backlash control is other at micro scale, and the return difference of whole transmission device is controlled to have higher mechanical efficiency simultaneously thereby make.The utility model has been avoided because the volume that worm couple brings as output stage is bigger, stressed bigger, and the long-time running wearing and tearing are big, influences the problem of Location accuracy.
In another technological scheme of the utility model, planetary wheeling assembly comprises: be arranged at the planet wheel on the planet wheel shaft rotationally, the edge, outer ring of planet wheel has annular mounting groove; Be sheathed on the crack gear ring that disappears in the annular mounting groove, the crack gear ring that disappears is arranged on the described planet wheel by torsional pin, and the gear teeth of the gear teeth of the described crack gear ring that disappears and planet wheel are formed the gear teeth of planetary wheeling assembly.The utility model is eliminated the sideshake of planet wheel and ring gear by planet wheel being made the built-up gear of band torsional pin when eliminating the sideshake between planet wheel and the sun gear.The utility model is compared with baroque worm gear anti-backlash mechanism, has improved the efficient of system, compares with spring-like worm gear anti-backlash mechanism simple in structure, can not produce fatigue failure, the serviceability height.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the heliostat azimuth gear that Fig. 1 provides for the utility model embodiment;
Fig. 2 is that Fig. 1 is along the sectional view of A-A line.
Wherein, 1 is total casing, and 2 is drive motor, 3 is speed reducer, and 4 is rolling bearing, and 5 is worm shaft, 6 is Worm-gear assembly, and 7 is rolling bearing, and 8 is the output stage sun wheel shaft, 9 is planetary wheeling assembly, and 10 is rolling bearing, and 11 is ring gear, 12 is planet carrier, 13 is output flange, and 14 is rolling bearing, and 15 is cover plate assembly.
Embodiment
Core of the present utility model is to provide a kind of heliostat azimuth gear, because the volume that worm couple brings as output stage is bigger, stressed bigger, the long-time running wearing and tearing are big to avoid, and influence the problem of Location accuracy.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The heliostat azimuth gear that the utility model embodiment provides comprises total casing 1, worm-and-wheel gear, drive motor 2, ring gear 11, planet carrier 1, planetary wheeling assembly 9 and output flange 13.
Wherein, the structure of total casing 1 and output flange 13 and wall thickness all pass through strict analytical calculation and optimization, make quality and volume minimum under the strength and stiffness requirement prerequisite satisfying.
Worm-and-wheel gear is arranged in total casing, is coaxially connected with output stage sun wheel shaft 8 on the Worm-gear assembly 6 of worm-and-wheel gear.Wherein, the worm shaft 5 of worm-and-wheel gear is supported on total casing 1 by rolling bearing 4.
The heliostat azimuth gear that the utility model provides, drive motor 1 is given speed reducer 3 with transmission of power, and by after speed reducer 3 decelerations of realization than large speed ratio, pass to worm-and-wheel gear, this worm-and-wheel gear carries out second time big retarding than slowing down, and worm-and-wheel gear have can reverse self-locking function.The transmission of power of worm-and-wheel gear is given output stage sun wheel shaft 8, sun gear on the output stage sun wheel shaft 8 drives planetary wheeling assembly 9 around its revolution, planetary wheeling assembly 9 is in the process of output stage sun wheel shaft 8 revolution, driving planet carrier 12 rotates, planet carrier 12 drives output flanges 13 and rotates, and by output flange 13 power is spread out of.
Therefore output stage of the present utility model is planetary stage gear pair (output stage sun wheel shaft 8, planetary wheeling assembly 9, planet carrier 12 and ring gear), planet carrier 12 outputting powers.This gear pair output speed is low especially, and swell increment is small ignores for gear heating, and is by roll flute that gear-pair backlash control is other at micro scale, and the return difference of whole transmission device is controlled to have higher mechanical efficiency simultaneously thereby make.The utility model has been avoided because the volume that worm couple brings as output stage is bigger, stressed bigger, and the long-time running wearing and tearing are big, influences the problem of Location accuracy.
In order further to optimize technique scheme, an end of output stage sun wheel shaft 8 is supported on total casing 1 by rolling bearing 7, the other end by roller bearings on planet carrier 12.Planet carrier 12 is installed on total casing 1, and realizes the sound separation by rolling bearing 14.
In order further to optimize technique scheme, planetary wheeling assembly 9 comprises planet wheel and the crack gear ring that disappears.
Wherein, planet wheel is arranged on the planet wheel shaft rotationally, and the edge, outer ring of planet wheel has annular mounting groove, and the shaft-like groove of this annular can be regarded as at common gear edge and cuts away a part, and the reserve part gear teeth, to gain in strength.Preferably, the gear teeth width that cuts away of planet wheel and the gear teeth width ratio of reserve part are 1:1, it will be appreciated by persons skilled in the art that also to can be other ratio, and 1:1 is the comparatively preferred mode of the utility model.
The crack gear ring that disappears is sheathed in the annular mounting groove, and this crack gear ring that disappears can be understood as at the position of cutting away part and replenishes corresponding entity.The crack gear ring that disappears is arranged on the planet wheel by torsional pin, and the gear teeth of the gear teeth of the crack gear ring that disappears and planet wheel are formed the gear teeth of planetary wheeling assembly 9.
The utility model is eliminated the sideshake of planet wheel and ring gear by planet wheel being made the built-up gear of band torsional pin when eliminating the sideshake between planet wheel and the sun gear.The utility model is compared with baroque worm gear anti-backlash mechanism, has improved the efficient of system, compares with spring-like worm gear anti-backlash mechanism simple in structure, can not produce fatigue failure, the serviceability height.
In the utility model one specific embodiment, the diameter of planetary wheeling assembly 9 is greater than the diameter of the sun gear on the output stage sun wheel shaft 8, to reach the purpose of more excellent deceleration.Planet carrier 12 can be connected by screw with output flange 13.
The output shaft of speed reducer 3 and worm shaft 5 are connected by spline.Correspondingly, the input end of worm shaft 5 can be provided with external splines, link to each other by the internal spline on the output shaft of this external splines and speed reducer 3, power is passed to worm shaft 5.
In order further to optimize technique scheme, in the utility model one specific embodiment, also can comprise the cover plate assembly 15 that is connected by screw with total casing 1, output flange 13 links to each other with cover plate assembly 15 by bearing.
In the utility model one specific embodiment, speed reducer 3 is the multistage planet reducing gear.The afterbody planet carrier of multistage planet reducing gear outputs power to worm shaft 5 by spline, and this worm shaft 5 and Worm-gear assembly 6 formed the big retarding ratios, worm couple that can reverse self-locking.
The casing of speed reducer 3 is connected on total casing 1 by bolt, and drive motor 2 is connected on the casing of speed reducer 3 by flange.Worm shaft 5 is hard flank of tooth involute cylindrical worm, and planetary wheeling assembly 9 is hard flank of tooth planet wheel; Output stage sun wheel shaft 8 is hard flank of tooth output stage sun wheel shaft.Gear pair on worm shaft 5, planetary wheeling assembly 9 and the output stage sun wheel shaft 8 has all adopted the hard flank of tooth, has good wear resistance and very long working life.Output stage has adopted the hard flank of tooth technology of high bearing capacity to realize the small volume of whole transmission device.
Parts in the utility model comprise that multistage planet reducing gear, hard flank of tooth involute worm wheel worm gear pair and the hard flank of tooth planetary gear of little sideshake wheel set all are mature technique, the part manufacture difficulty is low, product working service cost is low, wear resistance is good, long service life, and adopt hard flank of tooth technology to reduce the volume of product, saved cost.
The involute cylindrical worm ratio that the utility model is selected for use selects for use anchor ring two enveloping worm costs low, and output stage is the hardened face gear pair, and the simultaneously hard flank of tooth of volume that can reduce whole device is better than the latter's worm gear output wear resistance, longer service life.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a heliostat azimuth gear is characterized in that, comprising:
Total casing (1);
Be arranged at the worm-and-wheel gear in described total casing (1), be coaxially connected with output stage sun wheel shaft (8) on the Worm-gear assembly of described worm-and-wheel gear (6);
Drive motor (2), described drive motor (2) links to each other with the worm shaft (5) of described worm-and-wheel gear by speed reducer (3);
Be arranged at the ring gear (11) in described total casing (1);
Be arranged at the planet carrier (12) on described total casing (1) rotationally, described planet carrier (12) is provided with planet wheel shaft;
Be arranged at the planetary wheeling assembly (9) on the described planet wheel shaft rotationally, described planetary wheeling assembly (9) respectively with described ring gear (11) and described output stage sun wheel shaft (8) on sun gear engagement;
The output flange (13) that is connected with described planet carrier (12), described output flange (13) link to each other with described total casing (1) rotationally.
2. heliostat azimuth gear as claimed in claim 1, it is characterized in that, one end of described output stage sun wheel shaft (8) is supported on described total casing (1) by rolling bearing (7), the other end by roller bearings on described planet carrier (12).
3. heliostat azimuth gear as claimed in claim 2 is characterized in that, described planetary wheeling assembly (9) comprising:
Be arranged at the planet wheel on the described planet wheel shaft rotationally, the edge, outer ring of described planet wheel has annular mounting groove;
Be sheathed on the crack gear ring that disappears in the described annular mounting groove, the described crack gear ring that disappears is arranged on the described planet wheel by torsional pin, and the gear teeth of the gear teeth of the described crack gear ring that disappears and described planet wheel are formed the gear teeth of described planetary wheeling assembly (9).
4. heliostat azimuth gear as claimed in claim 1 is characterized in that, the diameter of described planetary wheeling assembly (9) is greater than the diameter of the sun gear on the described output stage sun wheel shaft (8).
5. heliostat azimuth gear as claimed in claim 1 is characterized in that, described planet carrier (12) is connected by screw with described output flange (13).
6. as each described heliostat azimuth gear of claim 1-5, it is characterized in that, also comprise the cover plate assembly (15) that is connected by screw with described total casing (1), described output flange (13) links to each other with described cover plate assembly (15) by bearing.
7. as each described heliostat azimuth gear of claim 1-5, it is characterized in that described speed reducer (3) is the multistage planet reducing gear.
8. heliostat azimuth gear as claimed in claim 7 is characterized in that, the casing of described speed reducer (3) is connected on described total casing (1) by bolt.
9. heliostat azimuth gear as claimed in claim 8 is characterized in that, described drive motor (2) is connected on the casing of described speed reducer (3) by flange.
10. as each described heliostat azimuth gear of claim 1-5, it is characterized in that described worm shaft (5) is hard flank of tooth involute cylindrical worm;
Described planetary wheeling assembly (9) is hard flank of tooth planet wheel;
Described output stage sun wheel shaft (8) is hard flank of tooth output stage sun wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164948 CN203161997U (en) | 2013-04-03 | 2013-04-03 | Azimuth angle transmission device of heliostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320164948 CN203161997U (en) | 2013-04-03 | 2013-04-03 | Azimuth angle transmission device of heliostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161997U true CN203161997U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320164948 Expired - Lifetime CN203161997U (en) | 2013-04-03 | 2013-04-03 | Azimuth angle transmission device of heliostat |
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|---|---|
| CN (1) | CN203161997U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195875A (en) * | 2013-04-03 | 2013-07-10 | 重庆齿轮箱有限责任公司 | Azimuth transmission device of heliostat |
| CN104500658A (en) * | 2014-12-16 | 2015-04-08 | 湖南科技大学 | Built-in solar tracking azimuth driving device |
| CN106020251A (en) * | 2016-08-03 | 2016-10-12 | 中国华能集团清洁能源技术研究院有限公司 | Solar tracking driving device based on planetary speed reducer and worm and gear speed reducer |
-
2013
- 2013-04-03 CN CN 201320164948 patent/CN203161997U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195875A (en) * | 2013-04-03 | 2013-07-10 | 重庆齿轮箱有限责任公司 | Azimuth transmission device of heliostat |
| CN104500658A (en) * | 2014-12-16 | 2015-04-08 | 湖南科技大学 | Built-in solar tracking azimuth driving device |
| CN106020251A (en) * | 2016-08-03 | 2016-10-12 | 中国华能集团清洁能源技术研究院有限公司 | Solar tracking driving device based on planetary speed reducer and worm and gear speed reducer |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |