WO2020168908A1 - 无级变速器 - Google Patents

无级变速器 Download PDF

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Publication number
WO2020168908A1
WO2020168908A1 PCT/CN2020/074338 CN2020074338W WO2020168908A1 WO 2020168908 A1 WO2020168908 A1 WO 2020168908A1 CN 2020074338 W CN2020074338 W CN 2020074338W WO 2020168908 A1 WO2020168908 A1 WO 2020168908A1
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WO
WIPO (PCT)
Prior art keywords
end cover
shaft
planetary
gear
support frame
Prior art date
Application number
PCT/CN2020/074338
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English (en)
French (fr)
Inventor
唐永峰
唐玉凝
Original Assignee
威海团中变速器有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 威海团中变速器有限公司 filed Critical 威海团中变速器有限公司
Priority to US17/430,580 priority Critical patent/US20220128143A1/en
Publication of WO2020168908A1 publication Critical patent/WO2020168908A1/zh

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    • 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
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
    • F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion
    • F16H47/12—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion the members with orbital motion having vanes interacting with the fluid
    • 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
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
    • 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

Definitions

  • the invention relates to a mechanical transmission device, in particular to a continuously variable transmission.
  • An existing continuously variable transmission is provided with an outer shell, an intermediate shell is arranged in the middle of the outer shell, a first end cover and a second end cover are respectively arranged on both sides of the intermediate shell, and the inside of the intermediate shell has a cavity structure.
  • the cavity inside the middle shell forms an inner cavity with the inner sides of the first end cover and the second end cover;
  • the first end cover is provided with a first shaft through the middle, the first shaft is rotatably connected with the first end cover, and the first shaft
  • a first sun gear is fixed on the upper part, the first sun gear is located inside the first end cover, the first sun gear is adjacently provided with a first support frame, the outer circumference of the first sun gear is provided with a first planet wheel, the first planet The wheel is meshed and connected with the first sun gear, and the first planetary gear and the first sun gear form a first planetary gear set;
  • a second shaft runs through the middle of the second end cover, and the second shaft is rotatably connected with the second end cover.
  • a second sun gear is fixed on the shaft.
  • the second sun gear is located inside the second end cover.
  • the second sun gear is adjacently provided with a second support frame.
  • the second sun gear is provided with a second planetary gear on the outer circumference.
  • the planetary gear is meshed and connected with the second sun gear, and the second planetary gear and the second sun gear form a second planetary gear set; the first planetary gear and the second planetary gear are fixedly connected by the planetary gear shaft, and the planetary gear shaft passes through the first planetary gear in turn ,
  • the first support frame, the second support frame, the second planet gear, the planet wheel shaft is rotatably connected with the first support frame and the second support frame, and the planet wheel shaft between the first support frame and the second support frame is fixedly provided with Bucket wheel, a plurality of bucket wheels fixedly arranged on the planetary wheel shaft constitute a bucket wheel set.
  • this continuously variable transmission has two sets of planetary gear sets, it is generally large in size, complicated in structure, complicated in manufacturing process, and high in cost, and cannot meet the low-cost requirements of the simple power transmission field.
  • the present invention is to solve the existing continuously variable transmission, which mainly uses input shaft and output shaft to transmit power.
  • it is large in size, complicated in structure, complicated in manufacturing process, and high in cost, and cannot meet the requirements of low cost in the field of simple power transmission.
  • the technical problem is to provide a continuously variable transmission with simple structure, low cost, reliable performance, and suitable for ordinary working conditions.
  • the technical solution of the present invention is a continuously variable transmission provided with an outer shell, an intermediate shell is arranged in the middle of the outer shell, and a first end cover and a second end cover are respectively provided on both sides of the intermediate shell.
  • the inside of the body is a cavity structure, the cavity inside the middle casing and the inner side of the first end cover and the second end cover form an inner cavity;
  • the first end cover is provided with a shaft through the middle, and the shaft is rotatably connected with the first end cover,
  • the sun gear is fixed on the shaft, the sun gear is located inside the first end cover, the sun gear is adjacently provided with a support frame, the outer circumference of the sun gear is provided with planet gears, the planet gears are meshed and connected with the sun gear, and the planet gears and the sun gear are formed Planetary gear set;
  • a planetary wheel shaft is fixed in the middle of the planetary wheel, the planetary wheel shaft passes through the planetary wheel and the support frame in turn, the planetary wheel shaft is rotatably connected
  • a semicircular cavity is provided on the inner wall of the housing corresponding to the bucket wheel, and the bucket wheel is located in the semicircular cavity.
  • a central bucket wheel is fixed on the shaft.
  • a continuously variable transmission is provided with an outer shell, a middle shell is arranged in the middle of the outer shell, a first end cover and a second end cover are respectively arranged on both sides of the middle shell, and the inside of the middle shell has a cavity structure.
  • the inner cavity and the inner side of the first end cover and the second end cover form an inner cavity;
  • the first end cover is provided with a shaft through the middle, the shaft is rotatably connected with the first end cover, and a gear ring is fixed on the shaft.
  • the ring gear is adjacently provided with a support frame, the inner circumference of the ring gear is provided with planet gears, and the planet gears are meshed and connected with the sun gear.
  • the planet wheels and the ring gear constitute a planetary gear set;
  • the planet wheel shaft, the planet wheel shaft passes through the planet wheel and the support frame in turn, the planet wheel shaft is rotatably connected with the support frame, and the planet wheel shaft passing through the support frame is fixed with a bucket wheel, and the bucket wheel is located between the support frame and the second end cover.
  • Bucket wheels fixedly arranged on the planetary wheel shafts constitute a bucket wheel set.
  • a semicircular cavity is provided on the inner wall of the housing corresponding to the bucket wheel, and the bucket wheel is located in the semicircular cavity.
  • the beneficial effect of the present invention is that, due to the outer casing, the middle casing is provided in the middle of the outer casing, the first end cover and the second end cover are respectively provided on both sides of the middle casing, and the inside of the middle casing has a cavity structure.
  • the cavity inside the body and the inner side of the first end cover and the second end cover form an inner cavity;
  • the first end cover is provided with a shaft through the middle, and the shaft is rotatably connected with the first end cover, and a sun gear is fixed on the shaft.
  • the wheel is located inside the first end cover, the sun gear is adjacently provided with a support frame, the outer circumference of the sun gear is provided with a planetary gear, the planetary gear and the sun gear are meshed and connected, and the planetary gear and the sun gear form a planetary gear set;
  • the planetary wheel shaft passing through the support frame is fixed with a bucket wheel.
  • the bucket wheel is located between the support frame and the second end cover.
  • the planetary wheel shaft is fixedly provided with a bucket wheel.
  • the wheels constitute a bucket wheel set.
  • This continuously variable transmission has only one planetary gear set in structure. It has low cost, simple and reliable performance. It can achieve zero-speed start and fast start without external resistance when starting.
  • the transmission process is flexible and rated Condition synchronization, no need for control devices, self-adaptive adjustment, automatic matching of torque and speed with little change, and can be applied to high-power flexible transmission occasions.
  • Figure 1 is a perspective view of embodiment 1 of the present invention.
  • Figure 2 is a cross-sectional view of Figure 1;
  • Figure 3 is a cross-sectional view of Figure 2;
  • Figure 4 is a schematic diagram with the outer shell removed
  • Figure 5 is an axonometric view of embodiment 2 of the present invention.
  • Figure 6 is a cross-sectional view of Figure 5;
  • Figure 7 is a cross-sectional view of Figure 6;
  • Fig. 8 is a schematic diagram with the outer casing removed.
  • Planetary gear set 101. Planetary gear; 102. Sun gear; 102A. Ring gear; 2. Bucket wheel set; 201. Bucket wheel; 3. Outer shell; 301. First end cover; 302. Intermediate shell; 303. The second end cover; 4. Inner cavity; 5. Shaft; 6. Support frame; 7. Planetary wheel shaft; 8. Central bucket wheel.
  • FIG. 1-4 it is an embodiment of a continuously variable transmission of the present invention. It is provided with an outer housing 3, an intermediate housing 302 is arranged in the middle of the outer housing 3, and first end covers are respectively provided on both sides of the intermediate housing 302 301 and the second end cover 303, the interior of the intermediate housing 302 is a cavity structure, the cavity inside the intermediate housing 302 and the inner side of the first end cover 301 and the second end cover 303 form an inner cavity 4;
  • a shaft 5 runs through the middle of 301.
  • the shaft 5 is rotatably connected with the first end cover 301.
  • a sun gear 102 is fixed on the shaft 5.
  • the sun gear 102 is located inside the first end cover 301.
  • the sun gear 102 is adjacently provided with a support frame 6
  • a planetary gear 101 is provided on the outer circumference of the sun gear 102.
  • the planetary gear 101 is meshed and connected with the sun gear 102.
  • the planetary gear 101 and the sun gear 102 constitute the planetary gear set 1.
  • the planetary gear shaft 7 and the planetary gear shaft 7 are fixed in the middle of the planetary gear 101. Passing through the planetary wheel 101 and the support frame 6 in turn, the planetary wheel shaft 7 is rotatably connected with the support frame 6, and a bucket wheel 201 is fixed on the planetary wheel shaft 7 passing through the support frame 6.
  • the bucket wheel 201 is located on the support frame 6 and the second end cover Among 303, the bucket wheels 201 fixedly arranged on the planetary wheel shafts 7 constitute the bucket wheel set 2.
  • the operation process of the continuously variable transmission of this embodiment 1 is that the shaft 5 is used as the power input end, and the outer casing 3 is used as the power output end.
  • the outer casing 3 is used as the power output end.
  • the sun gear 102 drives the planet gear 101 to rotate counterclockwise, and the fixedly connected planet wheel shaft 7 drives the bucket wheel 201 to rotate counterclockwise.
  • the bucket wheel 201 is subjected to the resistance of the oil in the inner cavity 4 to form a torque.
  • This resistance includes The hydraulic power of the oil leaving the bucket wheel 201 to the adjacent bucket wheel 201 and the hydraulic viscosity of the oil between the bucket wheel 201 and the intermediate casing 302, the resistance of the oil to the bucket wheel 201 starts to be 0, as As the speed of the shaft 5 increases, the resistance of the oil to the bucket wheel 201 is doubled, and the outer casing 3 is driven to rotate through the support frame 6, and the power is output through any part of the outer casing 3.
  • the CVT is in the zero-speed and zero-torque start state at the initial stage of starting.
  • the resistance of the bucket wheel set 2 rises rapidly, and its resistance finally acts on the support frame 6, and also acts on the intermediate shell.
  • the outer shell 3 forms a power output.
  • the speed and torque of the continuously variable transmission are relatively stable.
  • the bucket wheel 201 will not rotate due to the force balance, and the mutual gears do not rotate.
  • the synchronous transmission of power is close to 1:1 transmission.
  • This embodiment is suitable for occasions that require flexible start and long-term work. Since the start does not have the hydraulic gravity provided by revolution, there is no load or light load when starting. When the continuously variable transmission is running, the hydraulic gravity plays a role, plus hydraulic power and liquid viscosity. The range of force and torque transmission increases, and the overload of the normal range will not affect the flexibility and torque work of the continuously variable transmission. It is especially suitable for equipment that works all the year round such as belt conveyors. It meets the performance of the continuously variable transmission under ordinary working conditions. The manufacturing process is simple and the cost is low.
  • a semicircular cavity is provided on the inner wall of the outer shell 3 corresponding to the bucket wheel 201.
  • the bucket wheel 201 is located in the semicircular cavity.
  • This structure can fully transmit when the bucket wheel 201 rotates.
  • the hydraulic viscosity and hydraulic power of the oil in the bucket wheel 201 and the inner cavity 4 the hydraulic viscosity and hydraulic power will exert more effective performance, realize the compact optimization of the volume and meet the better performance, so that the continuously variable transmission output is maximized. Power and torque.
  • planetary gears 101 there are more than 3 planetary gears 101 for this series of continuously variable transmission. In this embodiment, there are 9 planetary gears 101. Different numbers of planetary gears 101 can be set according to different transmission power and different sizes to adapt to different According to application requirements, different quantities such as 6, 9, 12, etc. are generally available.
  • a central bucket wheel 201 is fixed on the shaft 5.
  • the setting of the central bucket wheel 201 can adjust the operation mode of the oil in the inner cavity 4 and adjust the operation performance.
  • the external dimensions of the continuously variable transmission can be adjusted, and different numbers of planetary gears 101 can be set.
  • the solution of 6 planetary gears can be adopted, and its performance is more optimized.
  • FIG. 5-8 it is another embodiment of a continuously variable transmission of the present invention. It is provided with an outer housing 3, an intermediate housing 302 is arranged in the middle of the outer housing 3, and a second One end cover 301 and second end cover 303, the inside of the middle housing 302 is a cavity structure, the cavity inside the middle housing 302 and the inner side of the first end cover 301 and the second end cover 303 form an inner cavity 4;
  • One end cover 301 is provided with a shaft 5 through the middle, and the shaft 5 is rotatably connected with the first end cover 301.
  • a gear ring 102A is fixed on the shaft 5.
  • the gear ring 102A is located inside the first end cover 301, and the gear ring 102A is adjacently provided
  • the support frame 6, the inner side of the outer circumference of the ring gear 102A is provided with a planetary gear 101, and the planetary gear 101 is meshed and connected with the ring gear 102A.
  • the planetary gear 101 and the ring gear 102A constitute the planetary gear set 1;
  • the planetary gear 101 is fixed with a planetary shaft 7 in the middle,
  • the planetary wheel shaft 7 passes through the planetary wheel 101 and the support frame 6 in turn.
  • the planetary wheel shaft 7 is rotatably connected to the support frame 6.
  • a bucket wheel 201 is fixed on the planetary wheel shaft 7 passing through the support frame 6.
  • the bucket wheel 201 is located on the support frame 6 and the second Between the two end covers 303, the bucket wheels 201 fixedly arranged on the planetary wheel shafts 7 constitute the bucket wheel set 2.
  • a semicircular cavity is provided on the inner wall of the outer shell 3 corresponding to the bucket wheel 201, and the bucket wheel 201 is located in the semicircular cavity.
  • Embodiment 1 The difference between this embodiment and Embodiment 1 is that the sun gear 102 is replaced with a ring gear 102A, and the ring gear 102A transmits power to the planet gear 101. Since the ring gear 102A transmits torque with a much larger radius than the sun gear 102, this The continuously variable transmission of the embodiment can transmit larger torque, and the efficiency of meshing transmission between the ring gear 102A and the planetary gear 101 is higher than the efficiency of meshing transmission between the sun gear 102 and the planetary gear 101.
  • the ring gear 102A of this embodiment is compared with the technical solution of the sun gear 102 in the embodiment 1.
  • This embodiment increases the torque transmission capacity by about 40%, and at the same time reduces the damage of the planetary gear 101 during operation. , At the same time, the lubrication effect is better, which can meet the working conditions of the continuously variable transmission in different application fields.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Structure Of Transmissions (AREA)
  • Transmission Devices (AREA)
  • General Details Of Gearings (AREA)

Abstract

一种无级变速器，设有外壳体（3）和内腔体（4），第一端盖（301）中间贯穿设有轴（5），轴（5）与第一端盖（301）旋转连接，轴（5）上固定设有太阳轮（102），太阳轮（102）位于第一端盖（301）内侧，太阳轮（102）相邻设有支撑架（6），太阳轮（102）外圆周上设有行星轮（101），行星轮（101）与太阳轮（102）啮合连接，行星轮（101）和太阳轮（102）构成行星齿轮组（1）；行星轮（101）中间固定设有行星轮轴（7），行星轮轴（7）依次贯穿通过行星轮（101）和支撑架（6），穿过支撑架（6）的行星轮轴（7）上固定设有斗轮（201），斗轮（201）位于支撑架（6）和第二端盖（303）之间，多个行星轮轴（7）上固定设有的斗轮（201）构成斗轮组（2），其结构简单，成本低，性能可靠，适合普通工况需要的无级变速器。该无级变速器可广泛应用于传动领域。

Description

无级变速器 技术领域
本发明涉及一种机械传动装置，特别是涉及一种无级变速器。
背景技术
现有的一种无级变速器，设有外壳体，外壳体中间设有中间壳体，中间壳体两侧分别设有第一端盖和第二端盖，中间壳体内部为空腔结构，中间壳体内部的空腔与第一端盖和第二端盖的内侧形成内腔体；第一端盖中间贯穿设有第一轴，第一轴与第一端盖旋转连接，第一轴上固定设有第一太阳轮，第一太阳轮位于第一端盖内侧，第一太阳轮相邻设有第一支撑架，第一太阳轮外圆周上设有第一行星轮，第一行星轮与第一太阳轮啮合连接，第一行星轮和第一太阳轮构成第一行星齿轮组；第二端盖中间贯穿设有第二轴，第二轴与第二端盖旋转连接，第二轴上固定设有第二太阳轮，第二太阳轮位于第二端盖内侧，第二太阳轮相邻设有第二支撑架，第二太阳轮外圆周上设有第二行星轮，第二行星轮与第二太阳轮啮合连接，第二行星轮和第二太阳轮构成第二行星齿轮组；第一行星轮和第二行星轮通过行星轮轴固定连接，行星轮轴依次贯穿通过第一行星轮、第一支撑架、第二支撑架、第二行星轮，行星轮轴与第一支撑架和第二支撑架旋转连接，位于第一支撑架与第二支撑架之间的行星轮轴上固定设有斗轮，行星轮轴上固定设有的多个斗轮构成斗轮组。
此无级变速器由于具有两套行星齿轮组，一般体积较大，结构复杂，制造工艺繁琐，成本高，无法满足简单动力传递领域对于低成本的要求。
发明内容
本发明就是要解决现有的一种无级变速器，主要应用输入轴和输出轴传递动力，一般体积较大，结构复杂，制造工艺繁琐，成本高，无法满足简单动力传递领域对于低成本的要求的技术问题，提供一种仅有一 套行星齿轮组的结构简单，成本低，性能可靠，适合普通工况需要的无级变速器。
为此，本发明的技术方案是，一种无级变速器，设有外壳体，外壳体中间设有中间壳体，中间壳体两侧分别设有第一端盖和第二端盖，中间壳体内部为空腔结构，中间壳体内部的空腔与第一端盖和第二端盖的内侧形成内腔体；第一端盖中间贯穿设有轴，轴与第一端盖旋转连接，轴上固定设有太阳轮，太阳轮位于第一端盖内侧，太阳轮相邻设有支撑架，太阳轮外圆周上设有行星轮，行星轮与太阳轮啮合连接，行星轮和太阳轮构成行星齿轮组；行星轮中间固定设有行星轮轴，行星轮轴依次贯穿通过行星轮和支撑架，行星轮轴与支撑架旋转连接，穿过支撑架的行星轮轴上固定设有斗轮，斗轮位于支撑架和第二端盖之间，多个行星轮轴上固定设有的斗轮构成斗轮组。
优选地，外壳体内壁对应斗轮位置设有半圆形状的腔体，斗轮位于半圆形状的腔体中。
优选地，行星轮为3个以上。
优选地，轴上固定设有中心斗轮。
一种无级变速器，设有外壳体，外壳体中间设有中间壳体，中间壳体两侧分别设有第一端盖和第二端盖，中间壳体内部为空腔结构，中间壳体内部的空腔与第一端盖和第二端盖的内侧形成内腔体；第一端盖中间贯穿设有轴，轴与第一端盖旋转连接，轴上固定设有齿圈，齿圈位于第一端盖内侧，齿圈相邻设有支撑架，齿圈外圆周内侧设有行星轮，行星轮与太阳轮啮合连接，行星轮和齿圈构成行星齿轮组；行星轮中间固定设有行星轮轴，行星轮轴依次贯穿通过行星轮和支撑架，行星轮轴与支撑架旋转连接，穿过支撑架的行星轮轴上固定设有斗轮，斗轮位于支撑架和第二端盖之间，多个行星轮轴上固定设有的斗轮构成斗轮组。
优选地，外壳体内壁对应斗轮位置设有半圆形状的腔体，斗轮位于半圆形状的腔体中。
本发明有益效果是，由于设有外壳体，外壳体中间设有中间壳体， 中间壳体两侧分别设有第一端盖和第二端盖，中间壳体内部为空腔结构，中间壳体内部的空腔与第一端盖和第二端盖的内侧形成内腔体；第一端盖中间贯穿设有轴，轴与第一端盖旋转连接，轴上固定设有太阳轮，太阳轮位于第一端盖内侧，太阳轮相邻设有支撑架，太阳轮外圆周上设有行星轮，行星轮与太阳轮啮合连接，行星轮和太阳轮构成行星齿轮组；行星轮中间固定设有行星轮轴，行星轮轴依次贯穿通过行星轮和支撑架，穿过支撑架的行星轮轴上固定设有斗轮，斗轮位于支撑架和第二端盖之间，行星轮轴上固定设有的斗轮构成斗轮组，这种无级变速器，在结构上仅有一套行星齿轮组，成本低，性能简单可靠，在启动时可以实现零速启动和无外阻力快速启动，传动过程柔性，额定工况同步，不需要控制装置，自适应调节，可实现扭矩与速度变化不大情况下的自动匹配，可应用于大功率柔性传动场合。
附图说明
图1是本发明实施例1的轴测图；
图2是图1的剖视图；
图3是图2的剖视图；
图4是去掉外壳体的示意图；
图5是本发明实施例2的轴测图；
图6是图5的剖视图；
图7是图6的剖视图；
图8是去掉外壳体的示意图。
图中符号说明：
1.行星齿轮组；101.行星轮；102.太阳轮；102A.齿圈；2.斗轮组；201.斗轮；3.外壳体；301.第一端盖；302.中间壳体；303.第二端盖；4.内腔体；5.轴；6.支撑架；7.行星轮轴；8.中心斗轮。
具体实施方式
下面结合实施例对本发明做进一步描述。
实施例1
如图1-4所示，是本发明一种无级变速器的实施例，设有外壳体3，外壳体3中间设有中间壳体302，中间壳体302两侧分别设有第一端盖301和第二端盖303，中间壳体302内部为空腔结构，中间壳体302内部的空腔与第一端盖301和第二端盖303的内侧形成内腔体4；第一端盖301中间贯穿设有轴5，轴5与第一端盖301旋转连接，轴5上固定设有太阳轮102，太阳轮102位于第一端盖301内侧，太阳轮102相邻设有支撑架6，太阳轮102外圆周上设有行星轮101，行星轮101与太阳轮102啮合连接，行星轮101和太阳轮102构成行星齿轮组1；行星轮101中间固定设有行星轮轴7，行星轮轴7依次贯穿通过行星轮101和支撑架6，行星轮轴7与支撑架6旋转连接，穿过支撑架6的行星轮轴7上固定设有斗轮201，斗轮201位于支撑架6和第二端盖303之间，多个行星轮轴7上固定设有的斗轮201构成斗轮组2。
该实施例1的无级变速器的运行的过程是，将轴5作为动力的输入端，外壳体3作为动力输出端，无级变速器启动时，外壳体3作为动力输出端，由于受到外阻力的作用，保持静态不动，当输入的动力从轴5顺时针输入时，带动太阳轮102顺时针旋转，由于外壳体3受到外阻力的作用保持不动，即无级变速器外壳体没有开始形成公转动作，太阳轮102带动行星轮101逆时针旋转，通过固定连接的行星轮轴7，带动斗轮201逆时针自转，斗轮201在内腔体4内受油液的阻力作用形成扭矩，此阻力包括离开斗轮201的油液喷射给相邻斗轮201的液动力和斗轮201与中间壳体302之间油液的液粘力，油液对斗轮201的阻力开始是为0，随着轴5速度增大，油液对斗轮201的阻力成倍增大，进而通过支撑架6带动外壳体3旋转，进而通过外壳体3的任何部位输出动力。
上述过程中，无级变速器启动初期处于零速零扭矩的启动状态，无级变速器启动中期，斗轮组2受到的阻力快速提升，其阻力最终作用于支撑架6上，同时也作用在中间壳体302上，外壳体3形成动力输出， 无级变速器额定工况下，无级变速器的速度与扭矩相对稳定，斗轮201受力平衡不会出现自转现象，相互间的齿轮不转动，整体实现动力的同步传输，趋近于1:1传动。
该实施例适合需要柔性启动、长时间工作的场合，由于启动不具备公转提供的液重力，启动时空载或轻载，当无级变速器运行后，液重力发挥作用，加上液动力和液粘力，传递扭矩的范围增大，正常范围的过载都不会影响无级变速器的柔性和扭矩工作，特别适用于皮带机等常年工作的设备，满足普通工况的无级变速器具备的性能，同时制造加工简单，成本低。
图3中可以看到，外壳体3内壁对应斗轮201位置设有半圆形状的腔体，斗轮201位于半圆形状的腔体中，这样的结构，当斗轮201旋转工作时，可以充分传递斗轮201和内腔体4中油液的液粘力和液动力，液粘力和液动力将发挥更有效的性能，实现了体积的紧凑优化和满足更优良性能，使无级变速器输出最大的功率和扭矩。
该系列无级变速器的行星轮101可以选用3个以上，该实施例中行星轮101为9个，可以根据传递功率的不同和使用尺寸的不同，设置不同数量的行星轮101，从而适应不同的应用要求，一般可以选用6个、9个、12个等不同的数量。
图3中可以看到，轴5上固定设有中心斗轮201，中心斗轮201的设置可以调节内腔体4中油液的运转模态，调节运转的性能。
根据需要传递的扭矩和功率不同，可以调整无级变速器的外形尺寸，设置不同数量的行星轮101，经过测试，传递100kw左右功率时，可采取6个行星轮的方案，其性能更优化。
实施例2
如图5-8所示，是本发明一种无级变速器的另一实施例，其设有外壳体3，外壳体3中间设有中间壳体302，中间壳体302两侧分别设有第一端盖301和第二端盖303，中间壳体302内部为空腔结构，中间壳体302内部的空腔与第一端盖301和第二端盖303的内侧形成内腔体4；第一端 盖301中间贯穿设有轴5，轴5与第一端盖301旋转连接，轴5上固定设有齿圈102A，齿圈102A位于第一端盖301内侧，齿圈102A相邻设有支撑架6，齿圈102A外圆周内侧设有行星轮101，行星轮101与齿圈102A啮合连接，行星轮101和齿圈102A构成行星齿轮组1；行星轮101中间固定设有行星轮轴7，行星轮轴7依次贯穿通过行星轮101和支撑架6，行星轮轴7与支撑架6旋转连接，穿过支撑架6的行星轮轴7上固定设有斗轮201，斗轮201位于支撑架6和第二端盖303之间，多个行星轮轴7上固定设有的斗轮201构成斗轮组2。
图3中可以看到，外壳体3内壁对应斗轮201位置设有半圆形状的腔体，斗轮201位于半圆形状的腔体中。
该实施例与实施例1的区别在于，将太阳轮102替换成齿圈102A，由齿圈102A将动力传递给行星轮101，由于齿圈102A传递扭矩的半径远远大于太阳轮102，所以该实施例的无级变速器可以传递更大的扭矩，同时齿圈102A与行星轮101啮合传动的效率比太阳轮102与行星轮101啮合传动的效率高。
经过对比试验，本实施例齿圈102A与实施例1中太阳轮102的技术方案相比较，该实施例将传输扭矩的能力增大了40％左右，同时降低了运行时行星轮101离心力的危害，同时润滑效果更好，能够满足无级变速器不同应用领域的工况要求。
惟以上所述者，仅为本发明的具体实施例而已，当不能以此限定本发明实施的范围，故其等同组件的置换，或依本发明专利保护范围所作的等同变化与修改，皆应仍属本发明权利要求书涵盖之范畴。

Claims (6)

  1. 一种无级变速器，设有外壳体，其特征是：所述外壳体中间设有中间壳体，所述中间壳体两侧分别设有第一端盖和第二端盖，所述中间壳体内部为空腔结构，所述中间壳体内部的空腔与第一端盖和第二端盖的内侧形成内腔体；
    所述第一端盖中间贯穿设有轴，所述轴与第一端盖旋转连接，所述轴上固定设有太阳轮，所述太阳轮位于第一端盖内侧，所述太阳轮相邻设有支撑架，所述太阳轮外圆周上设有行星轮，所述行星轮与太阳轮啮合连接，所述行星轮和太阳轮构成行星齿轮组；
    所述行星轮中间固定设有行星轮轴，所述行星轮轴依次贯穿通过行星轮和支撑架，所述行星轮轴与支撑架旋转连接，所述穿过支撑架的行星轮轴上固定设有斗轮，所述斗轮位于支撑架和第二端盖之间，所述多个行星轮轴上固定设有的斗轮构成斗轮组。
  2. 根据权利要求1所述的无级变速器，其特征在于：所述外壳体内壁对应斗轮位置设有半圆形状的腔体，所述斗轮位于半圆形状的腔体中。
  3. 根据权利要求1或2所述的无级变速器，其特征在于：所述行星轮为3个以上。
  4. 根据权利要求1或2所述的无级变速器，其特征在于：所述轴上固定设有中心斗轮。
  5. 一种无级变速器，设有外壳体，其特征是：所述外壳体中间设有中间壳体，所述中间壳体两侧分别设有第一端盖和第二端盖，所述中间壳体内部为空腔结构，所述中间壳体内部的空腔与第一端盖和第二端盖的内侧形成内腔体；
    所述第一端盖中间贯穿设有轴，所述轴与第一端盖旋转连接，所述轴上固定设有齿圈，所述齿圈位于第一端盖内侧，所述齿圈相邻设有支撑架，所述齿圈外圆周内侧设有行星轮，所述行星轮与太阳轮啮合连接，所述行星轮和齿圈构成行星齿轮组；
    所述行星轮中间固定设有行星轮轴，所述行星轮轴依次贯穿通过行星轮和支撑架，所述行星轮轴与支撑架旋转连接，所述穿过支撑架的行 星轮轴上固定设有斗轮，所述斗轮位于支撑架和第二端盖之间，所述多个行星轮轴上固定设有的斗轮构成斗轮组。
  6. 根据权利要求5所述的无级变速器，其特征在于：所述外壳体内壁对应斗轮位置设有半圆形状的腔体，所述斗轮位于半圆形状的腔体中。
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