CN112858905A - Novel loader - Google Patents
Novel loader Download PDFInfo
- Publication number
- CN112858905A CN112858905A CN202110007311.0A CN202110007311A CN112858905A CN 112858905 A CN112858905 A CN 112858905A CN 202110007311 A CN202110007311 A CN 202110007311A CN 112858905 A CN112858905 A CN 112858905A
- Authority
- CN
- China
- Prior art keywords
- gear
- planetary gear
- package
- ring
- motor
- 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.)
- Pending
Links
- 230000009467 reduction Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 34
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000011068 loading method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
The invention discloses a novel loader, which comprises a box body, a planetary gear bag I, a planetary gear bag II and a primary cylindrical gear, wherein the planetary gear bag I and the planetary gear bag II respectively comprise a sun gear, a planetary gear, a planet carrier and a gear ring which are matched with each other, the planet carrier of the planetary gear bag I is connected with the planet carrier of the planetary gear bag II through a spline, the gear ring of the planetary gear bag I is fixedly connected with the box body, the gear ring of the planetary gear bag II is rotatably arranged, the gear ring of the planetary gear bag I and the gear ring of the planetary gear bag II respectively comprise internal teeth, the gear ring of the planetary gear bag II also comprises external teeth, the gear ring of the planetary gear bag II is meshed with the primary cylindrical gear through the external teeth, and the primary cylindrical gear is driven to rotate by a speed reducing motor. The invention provides a novel loader which is applied to a motor or gear box load test system, so that the manufacturing cost of the load test system is greatly reduced, the energy consumption of the system is reduced, and the effect is superior to that of the existing imported hydraulic (swinging cylinder) loader.
Description
Technical Field
The invention belongs to the technical field of loaders, and particularly relates to a novel loader.
Background
In a traditional motor load test system, two high-power frequency converters are needed, the two high-power frequency converters respectively control one motor (one tested motor is used as a motor, and the other accompanying motor is used as a generator), electric energy is sealed on a common direct-current bus of the two frequency converters, and a power grid and a rectifier only provide loss compensation for a test air cylinder, as shown in figure 1.
The traditional gear box load test system is similar to a motor load test, and only two gear boxes (one gear box to be tested and the other gear box to be tested) are connected between two motors, high-speed shafts of the two gear boxes are respectively connected with the two motors (a dragging motor and a loading motor), and low-speed large-torque shafts of the two gear boxes are connected. The control and energy cycling relationship of the motors is the same as that of the motor load test system, and at the moment, the two high-power motors belong to the equipment of the gearbox load test system, which is shown in figure 2.
No matter the motor load test system or the gear box load test system, the stator voltage, the current and the frequency of the two motors are different. For example, the frequency of the motor is 50Hz, the frequency of the generator is 50.5Hz, and the rotational speeds of the two motors are equal. The electric energy can only be mutually fed through direct current buses of the two frequency converters, the two frequency converters must be operated at full power, and the whole system needs to be controlled by the high-power frequency converter. The cost of the two high-power frequency converters accounts for more than 80% of the cost of the whole test system, and the problems of high construction cost and high power consumption exist. If the differential loading can be realized, the rotating speeds of the two motors are different, the voltages are the same, the frequencies are the same, and the electric energy of the motor and the electric energy of the generator are directly fed mutually, namely the current of the generator directly flows to the motor, so that the equipment cost and the power consumption cost of the test system are both greatly reduced. In order to realize the technical scheme, a new loader suitable for the load test of the motor or the gearbox must be designed.
Disclosure of Invention
In order to reduce the manufacturing cost of a load test system and combine the technical advantages of electromechanical combination, the novel loader is invented to realize differential loading, and electric energy between motors can be directly and mutually fed, so that the manufacturing cost of the test system is reduced, and energy consumption is saved.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a novel loader, the loader is including the box with install planetary gear package I in the box, planetary gear package II and one-level cylindrical gear, planetary gear package I and planetary gear package II equally divide and do not include sun gear, planet wheel, planet carrier and the ring gear of mutually supporting, planetary gear package I's planet carrier and planetary gear package II's planet carrier pass through the diaphragm coupling and connect, planetary gear package I's ring gear fixed connection box, the rotatable setting of ring gear of planetary gear package II, planetary gear package I's ring gear and planetary gear package II's ring gear equally divide and do not include the internal tooth, planetary gear package II's ring gear is still including the external tooth, planetary gear package II's ring gear passes through external tooth and one-level cylindrical gear meshing, one-level cylindrical gear is rotated by the gear motor drive.
Preferably, in the technical scheme, the number of the first-stage cylindrical gears is two, the number of the speed reducing motors is two, the two first-stage cylindrical gears are respectively located on two sides of the gear ring of the planetary gear packet II, and one speed reducing motor drives one first-stage cylindrical gear to rotate.
Preferably, the reduction motor is a planetary reduction motor.
Preferably, in the above-described aspect, the planetary reduction motor is a helical bevel gear reducer.
Preferably, the relationship between the rotation speeds of the planetary gear packet i or the planetary gear packet ii is as follows:
nt–(1+io)nj+ionq0, where io is Zq/Zt，ZqNumber of teeth of internal teeth of gear ring, ZtFor the number of teeth of the sun gear, t represents the sun gear, q represents the ring gear, and j represents the planet carrierAnd n represents the rotational speed, the internal tooth rotational speed n of the ring gear in the planetary gear package IqAlways 0.
The invention has the beneficial effects that: the invention provides a novel loader, which is applied to a motor or gear box load test system, can greatly reduce the manufacturing cost of the load test system and the energy consumption of the system, and has the effect superior to that of the existing imported hydraulic (swinging cylinder) loader.
Drawings
FIG. 1 is a schematic diagram of a conventional motor load testing system;
FIG. 2 is a schematic diagram of a conventional gearbox load testing system;
FIG. 3 is a schematic diagram of the loader configuration;
FIG. 4 is a schematic diagram of the motor load testing system of the present invention;
FIG. 5 is a schematic diagram of the gearbox load testing system of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figure 3, the novel loader comprises a box body 3, a planetary gear package I1, a planetary gear package II 2 and a primary cylindrical gear which are arranged in the box body 3, wherein the planetary gear package I1 and the planetary gear package II 2 respectively comprise a sun gear, a planetary gear, a planet carrier and a gear ring 5 which are matched with each other, the planet carrier of the planet gear package I1 is connected with the planet carrier of the planet gear package II 2 through a diaphragm coupling 6, the gear ring fixed connection box 3 of planetary gear package I, the rotatable setting of gear ring 5 of planetary gear package II 2, gear ring 5 of planetary gear package I1 and gear ring 5 of planetary gear package II 2 are equallyd divide and are respectively including the internal tooth, gear ring 5 of planetary gear package II 2 is including the external tooth, gear ring 5 of planetary gear package II 2 passes through the external tooth and 7 meshing of one-level roller gear, and one-level roller gear is rotated by gear motor 4 drive. By controlling the rotating speed and the rotating direction of the speed reducing motor 4, the gear ring 5 of the planetary gear package II 2 is driven to rotate continuously at a low speed or for a short time, so that the sun gear (shaft) of the planetary gear package I1 and the sun gear (shaft) of the planetary gear package II 2 have a rotating speed difference or relatively deflect by a certain angle.
Furthermore, the number of the first-stage cylindrical gears is two, the number of the speed reducing motors 4 is two, the two first-stage cylindrical gears are respectively located on two sides of the gear ring of the planetary gear packet II 2, one speed reducing motor 4 drives one first-stage cylindrical gear to rotate, and the two speed reducing motors 4 are respectively connected with the small-power frequency converter. The number of the first-stage cylindrical gears and the number of the speed reducing motors 4 are two and are symmetrically arranged, so that radial force borne by external teeth of the gear ring 5 of the planetary gear package II 2 is mutually offset, the stress condition of the planetary gear package II 2 is improved, the reliability of the device is improved, and the formation of a loader with higher power and higher torque is facilitated.
Further, the gear motor is a 4-position planetary gear motor.
Furthermore, the planetary gear motor is a spiral bevel gear reducer, so that the axial size can be saved, and a loader can be conveniently connected with a tested piece.
Further, the rotation speed relation of the planetary gear package I1 or the planetary gear package II 2 is as follows:
nt–(1+io)nj+ionq0, where io is Zq/Zt，ZqNumber of teeth of internal teeth of ring gear 5, ZtT represents the sun gear, q represents the ring gear, j represents the planet carrier, n represents the rotational speed, the internal tooth rotational speed n of the ring gear 5 in the planetary gear package IqAlways 0.
For the planetary gear set ii 2, io is the number of internal teeth of the ring gear 5/the number of teeth of the sun gear (typically 3 to 7), and the rotational speed of the sun gear is (1+ io) × the rotational speed of the carrier — io × the rotational speed of the ring gear 5; in the planetary gear set i 1, the ring gear 5 is fixed to the case 3, the rotation speed of the internal teeth of the ring gear 5 is 0, and the rotation speed of the sun gear 1 (shaft) is (1+ iO) × the rotation speed of the carrier. The sun gear, the gear ring 5, the planet gear and the planet carrier in the planetary gear package I1 and the planetary gear package II 2 have the same structure and the same number of teeth. Except that the ring gear 5 of the planetary gear set i 1 is stationary, while the ring gear 5 of the planetary gear set ii 2 has external teeth and the ring gear 5 can rotate. The output shafts of the two planet carriers are connected together through the diaphragm coupling 6, so that the two planet carriers have the same rotating speed. The rotational speed of the sun gear of the planetary gear set ii 2 equals the rotational speed of the sun gear 1 of the planetary gear set i 1 — i0 × the rotational speed of the internal teeth of the ring gear of the planetary gear set ii 2.
Example 1
The novel loader provided by the invention is applied to the construction of a motor load test system. As shown in fig. 3 and 4, the motor load testing system further includes a tested motor, an accompanying motor, a low-power frequency converter, and a small-power frequency converter, wherein the rotating shaft of the tested motor and the rotating shaft of the accompanying motor are connected in a differential manner through a loader, the small-power frequency converter is connected with a power grid through a rectifier, the small-power frequency converter is respectively connected with the tested motor and the accompanying motor, and the loader is connected with the rectifier through the small-power frequency converter.
The motor load test system operates: the low-power frequency converter is soft-started to the rated frequency (such as 50Hz) and the rated voltage of the tested motor and the accompanying motor according to the constant voltage frequency ratio, at the moment, the tested motor, the accompanying motor and the loader are all in no-load rotating speed (such as 1500r/min), and the currents of the tested motor and the accompanying motor are all in no-load exciting current (the no-load current of the large motor is 10 percent of the rated current); and starting the small-power frequency converter to drive the speed reducing motor 4 on the loader, so that the rotating speed difference of the tested motor and the accompanying motor occurs, and the larger the rotating speed difference is, the larger the loading power is until the rated power is reached. At the moment, the rotating speed of the tested motor reaches 1485r/min, and the rotating speed of the accompanying motor reaches 1515 r/min.
Energy cycle relationship during operation of the load test system: the rotation speed of the tested motor and the rotation speed of the accompanying motor have a rotation speed difference, but the voltage and the stator frequency are the same, the energy of the tested motor and the energy of the accompanying motor can be directly and mutually fed, namely the mechanical power (or the mechanical energy) output by the tested motor is input as the mechanical power (or the mechanical energy) of the accompanying motor, the accompanying motor plays a role in generating electricity, the mechanical power (or the mechanical energy) is converted into electric power (or electric energy) to be output, the electric power (or the electric energy) is input as the electric power (or the electric energy) of the tested motor, and the tested motor is converted into the mechanical power (or the mechanical energy) again, and the steps are repeated. The low-power frequency converter absorbs power (or electric energy) from a power grid to supplement stator copper loss or iron loss, mechanical friction loss and the like of the tested motor and the accompanying motor. The small power frequency converter supplements the copper (or aluminum) loss of the rotors of the two speed reducing motors 4.
Example 2
The novel loader provided by the invention is applied to the construction of a gearbox load test system. As shown in fig. 3 and 5, the gear box load test system further includes a tested gear box, an accompanying gear box, a dragging motor, a loading motor, a low-power frequency converter, and a small-power frequency converter, wherein a low-speed end of the tested gear box is connected with a low-speed end of the accompanying gear box, a rotating shaft of the dragging motor is connected with a high-speed end of the tested gear box, a rotating shaft of the loading motor is in differential connection with a high-speed end of the accompanying gear box through the loader, the small-power frequency converter is connected with a power grid through a rectifier, the small-power frequency converter is respectively connected with the dragging motor and the loading motor, and the loader is connected with the rectifier through the small-power frequency.
The operation process and the energy circulation relation of the gearbox load test system are similar to those of the motor load test system.
As can be seen from the embodiment 1 and the embodiment 2, the motor or gear box load test system constructed by the novel loader only needs to use a low-power frequency converter, and the cost of the low-power frequency converter is about 20 percent of that of the high-power frequency converter of the traditional test system, so that the manufacturing cost of the load test system can be greatly reduced. The power consumption of the low-power frequency converter is also greatly smaller than that of two high-power frequency converters in the traditional test system, and the electricity cost is saved by 20-30% in the same test process.
The loader of the invention can be used for loading an asynchronous motor (needing to provide continuous rotation speed difference and needing to continuously operate a speed reducing motor), a synchronous motor (needing to operate the speed reducing motor for a short time and keeping the rotation speed of 0 after reaching a certain angle or being braked by a brake) and a gear box (two gear boxes are connected with a low-speed large-torque end and two high-speed shafts are respectively connected with the motor and the loader, the asynchronous motor or the synchronous motor can be adopted, and the loading method is the same as that of the asynchronous motor or the synchronous motor), and can also be used for loading a mechanically closed gear box. The hydraulic loader can completely replace an inlet hydraulic (swinging cylinder) loader, the hydraulic loader can only provide a deflection angle of 60 degrees at most, and the deflection angle provided by the loader is not limited.
It should be noted that the technical features of the rectifier, the frequency converter, the motor, and the like, which are referred to in the present patent application, should be regarded as the prior art, and the specific structure, the operation principle, and the control manner and the spatial arrangement manner that may be referred to in the present patent application may be conventional in the art, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described in detail.
Having described preferred embodiments of the present invention in detail, it is to be understood that modifications and variations may be resorted to without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a novel loader, a serial communication port, the loader is including the box with install planetary gear package I, planetary gear package II and the one-level cylindrical gear in the box, planetary gear package I and planetary gear package II are equallyd divide and are do not including sun gear, planet wheel, planet carrier and the ring gear of mutually supporting, planetary gear package I's planet carrier and planetary gear package II's planet carrier pass through the diaphragm coupling and connect, planetary gear package I's ring gear fixed connection box, the rotatable setting of ring gear of planetary gear package II, planetary gear package I's ring gear and planetary gear package II's ring gear are equallyd divide and are do not including the internal tooth, planetary gear package II's ring gear is still including the external tooth, planetary gear package II's ring gear passes through external tooth and one-level cylindrical gear meshing, one-level cylindrical gear is rotated by the gear drive of gear motor.
2. The novel loader according to claim 1, characterized in that the number of the primary cylindrical gears is two, the number of the speed reduction motors is two, the two primary cylindrical gears are respectively arranged on two sides of the gear ring of the planetary gear packet II, and one speed reduction motor drives one primary cylindrical gear to rotate.
3. The new loader as claimed in claim 2, characterized in that said gear motor is a planetary gear motor.
4. The novel loader of claim 3, wherein said planetary gear reduction motor is a helical bevel gear reducer.
5. The novel loader as claimed in claim 1, wherein said planetary gear package i or planetary gear package ii has a rotational speed relationship of:
nt–(1+io)nj+ionq0, where io is Zq/Zt，ZqNumber of teeth of internal teeth of gear ring, ZtT represents the sun gear, q represents the ring gear, j represents the planet carrier, n represents the rotational speed, and the internal tooth rotational speed n of the ring gear in the planetary gear package IqAlways 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007311.0A CN112858905A (en) | 2021-01-05 | 2021-01-05 | Novel loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007311.0A CN112858905A (en) | 2021-01-05 | 2021-01-05 | Novel loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112858905A true CN112858905A (en) | 2021-05-28 |
Family
ID=76001744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110007311.0A Pending CN112858905A (en) | 2021-01-05 | 2021-01-05 | Novel loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112858905A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB649563A (en) * | 1947-11-20 | 1951-01-31 | Fellows Gear Shaper Co | Multiple spindle planetary gear generating machine |
| JP2002213545A (en) * | 2001-01-19 | 2002-07-31 | Aisin Aw Co Ltd | Automatic transmission |
| US20030171184A1 (en) * | 2002-03-11 | 2003-09-11 | Russell Wige | Dual-input differential planetary gear transmission |
| CN102710077A (en) * | 2012-06-13 | 2012-10-03 | 中机国际工程设计研究院有限责任公司 | Orthogonal excitation synchronous motor and method for establishing gearbox and traditional synchronous motor test system by using same |
| WO2015185029A2 (en) * | 2014-06-07 | 2015-12-10 | Günther Zimmer | Planetary gearbox with two sun wheels |
| CN105793093A (en) * | 2013-11-28 | 2016-07-20 | 奥迪股份公司 | Active differential and motor vehicle |
| DE102015010101A1 (en) * | 2015-08-05 | 2017-02-09 | Hansbernd Berzheim | Modular modular system for multi-MW wind turbine gearboxes |
| CN106870682A (en) * | 2017-04-21 | 2017-06-20 | 吉林大学 | A kind of electric differential mechanism with torque fixed direction allocation function |
| CN108297618A (en) * | 2018-03-13 | 2018-07-20 | 吉林大学 | A kind of duplex planet train torque fixed direction allocation electric drive axle |
-
2021
- 2021-01-05 CN CN202110007311.0A patent/CN112858905A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB649563A (en) * | 1947-11-20 | 1951-01-31 | Fellows Gear Shaper Co | Multiple spindle planetary gear generating machine |
| JP2002213545A (en) * | 2001-01-19 | 2002-07-31 | Aisin Aw Co Ltd | Automatic transmission |
| US20030171184A1 (en) * | 2002-03-11 | 2003-09-11 | Russell Wige | Dual-input differential planetary gear transmission |
| CN102710077A (en) * | 2012-06-13 | 2012-10-03 | 中机国际工程设计研究院有限责任公司 | Orthogonal excitation synchronous motor and method for establishing gearbox and traditional synchronous motor test system by using same |
| CN105793093A (en) * | 2013-11-28 | 2016-07-20 | 奥迪股份公司 | Active differential and motor vehicle |
| WO2015185029A2 (en) * | 2014-06-07 | 2015-12-10 | Günther Zimmer | Planetary gearbox with two sun wheels |
| DE102015010101A1 (en) * | 2015-08-05 | 2017-02-09 | Hansbernd Berzheim | Modular modular system for multi-MW wind turbine gearboxes |
| CN106870682A (en) * | 2017-04-21 | 2017-06-20 | 吉林大学 | A kind of electric differential mechanism with torque fixed direction allocation function |
| CN108297618A (en) * | 2018-03-13 | 2018-07-20 | 吉林大学 | A kind of duplex planet train torque fixed direction allocation electric drive axle |
Non-Patent Citations (3)
| Title |
|---|
| 林勇刚 等: "大型风力发电机组独立桨叶控制系统", 太阳能学报 * |
| 牛拓;: "行星差速机构在起重领域的应用计算分析", 现代制造技术与装备, no. 06 * |
| 顾海港 等: "基于变桨距风力机半物理实验台齿轮箱设计优化", 农业机械学报, no. 02 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101016882A (en) | Electric stepless speed change double power flow wind-power generator group | |
| CN112081883A (en) | Stepless speed regulator based on differential transmission/power confluence mechanism and energy-saving system thereof | |
| CN109495034A (en) | Generator and its progress control method with multiple generator units | |
| CN100417008C (en) | Speed changing constant frequency method of wind force generation | |
| CN201013531Y (en) | Electric infinite variable speed double power stream wind generating set | |
| CN106949018B (en) | A kind of compound main transmission of wind energy conversion system mechanical electromagnetic | |
| CN102338035A (en) | Composite rotor structure variable-speed constant-frequency wind power generator system and control method thereof | |
| CN103986278B (en) | Different motor | |
| CN103063429A (en) | A test rig and a method for testing gearboxes having different gear ratios | |
| CN103124115B (en) | Wind power generation plant | |
| CN112858905A (en) | Novel loader | |
| CN112666459A (en) | Novel motor or gear box load test system | |
| CN100350720C (en) | Wind power generation differential permanent-magnet motor apparatus | |
| CN212726728U (en) | Speed reducing motor | |
| CN201217382Y (en) | Combined step speed regulation engine of electric vehicle | |
| CN208122993U (en) | Stepless speed changing type ocean current energy generator | |
| CN107036826B (en) | A kind of low-power consumption duplex transmission shaft load test mechanism | |
| CN207321028U (en) | Double drive hub motor structure and electric bicycle | |
| CN202732233U (en) | Variable-ratio wind generating set | |
| CN202579060U (en) | Speed adjusting device with variable speed ratio | |
| CN112901732A (en) | Flexible motor and flexible starting method | |
| CN207069849U (en) | Blower-pump load saves pole-changing multi-speed 3-phase asynchronous motor | |
| CN217355414U (en) | Planetary reduction composite integrated motor | |
| CN211209551U (en) | Stator-free dual-drive energy-saving motor | |
| CN213846445U (en) | Driving mechanism for cooling tower and cooling tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |