CN102705453A

CN102705453A - Internal-vibration multi-crankshaft small-tooth difference speed reducer

Info

Publication number: CN102705453A
Application number: CN2012101930668A
Authority: CN
Inventors: 张宽友
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-13
Filing date: 2012-06-13
Publication date: 2012-10-03

Abstract

The invention relates to an internal-vibration multi-crankshaft small-tooth difference speed reducer, which comprises a hollow half shaft. An axial through hole is reserved on the middle part of the hollow half shaft. Two spaced supporting disks are correspondingly arranged on the outer periphery of the hollow half shaft. A high-speed shaft is arranged in the axial through hole of the hollow half shaft through a bearing, and one end of the high-speed shaft is connected with a sun gear. Two or more than two double-throw crankshafts are arranged along two sides or a circumferential direction between the two spaced supporting disks. A phase difference of two cranks of each double-throw crankshaft is 180 degrees, and corresponds to that of two planetary gears. The two ends of the double-throw crankshafts are supported on the supporting disks. One end of each double-throw crankshaft is extended from the supporting disk, and is connected with a corresponding synchronous gear and meshed with the sun gear. The two cranks of each double-throw crankshaft are matched with bearing holes formed on the two sides or the circumferential directions of the two planetary gears. The two planetary gears have equal tooth numbers, and are correspondingly meshed with low-speed gear rings sleeved outside the two planetary gears. The internal-vibration multi-crankshaft small-tooth difference speed reducer is high in speed ratio and transmission power and compact and simple in structure, and stably runs.

Description

Interior many bent axles of swing little tooth difference speed reducer

Technical field

The present invention relates to big interior many bent axles of the swing little tooth difference speed reducer of a kind of speed ratio and output power, also can be used as speeder.Belong to the mechanical transmissioning technology field.

Background technique

Existing gear with small teeth difference transmission device mostly is a single axle swing arm structure, and shaft strength is big, and output is stressed unreasonable; Whole driving mechanism size is big; Heavy Weight, transmitted power is less than normal, and manufacture cost is high; The sexual valence ratio is (referring to " multiaxis swing reducing gear ", the patent No.: ZL200420017855.7).In Chinese patent communique CN102352916A, disclose a kind of " outside swing the few tooth difference of many bent axles increase/retarder ", this device has speed ratio and the big characteristics of transmission power, and compact structure; Operate steadily; But this device ring gear is a nonturning body, and processing is difficult, and its volume is also bigger than normal relatively.

Summary of the invention

Technical problem to be solved by this invention be the deficiency that exists to above-mentioned existing technology and provide a kind of in many bent axles of swing little tooth difference speed reducer, not only speed ratio is big with transmission power for it, compact structure operates steadily, and structure is more compact simply.

The present invention for the technological scheme that problem adopted of the above-mentioned proposition of solution is: include hollow half axle, axial hole is offered at the middle part of hollow half axle, and the periphery correspondence of hollow half axle is provided with two supporting disks separately; In the axial hole of hollow half axle, install high speed shaft through bearing, an end of high speed shaft connects central gear; Between two supporting disks separately along both sides or circumferentially be installed on the two-throw crank shaft more than 2 or 2; Two crank phases of described two-throw crank shaft differ from 180 ° corresponding with two planetary pinions; The two supports of two-throw crank shaft is on supporting disk; And an end extends supporting disk and connects synchromesh gear and be meshed with central gear, two cranks respectively with two planetary both sides or the bearing hole phase configuration that circumferentially is provided with, two planetary numbers of teeth are equal; The low speed ring gear outer with being sleeved on two planetary pinions meshes relatively, and the difference of the low speed ring gear and the planetary number of teeth is 1 ~ 6 tooth.

Press such scheme, described two planetary both sides or circumferentially dispose 2 ~ 6 two-throw crank shafts.

Press such scheme, the difference of the described low speed ring gear and the planetary number of teeth is 1 ~ 2 tooth.

Press such scheme, the profile of tooth of described planetary pinion and low speed ring gear is involute or double cycloid profile of tooth.

Press such scheme, described low speed ring gear two ends and end cap link, and wherein the end cap of a side is supported on the hollow half axle through bearing, and the end cap of opposite side is supported on an end termination of high speed shaft through bearing.

Press such scheme, described high speed shaft is an input end, and described low speed ring gear is an output terminal, constitutes retarder thus.

Press such scheme, the one-level transmission reduction speed ratio of the slow speed turbine stage that the low speed ring gear of described retarder and planetary pinion constitute is 1:10 ~ 135.

Press such scheme, the axis of described low speed ring gear and high speed shaft coincides.

Press such scheme, described low speed ring gear periphery connects reel, and the other end of reel links to each other with bearing spider, and described hollow half axle is fixedly attached on another bearing, the few tooth difference winch of the many bent axles of swing in constituting thus.

Working procedure of the present invention: outer power is from high speed shaft 1 input; Drive central gear 11 rotations; Central gear drives a plurality of synchromesh gears 15 that are engaged with and does to slow down synchronously to rotate; Drive many two-throw crank shafts 8 and rotate synchronously, the crank that two phase differences of two-throw crank shaft are 180 ° drives two planetary pinions of installing relatively and circumferentially does 360 ° rotation along gear ring, accomplishes the process of few tooth difference deceleration force amplifier through the rotation engagement.If make speed increaser usefulness, process is opposite, and the outer power of low-speed big is by ring gear 5 inputs, and speedup is exported power after subtracting power from high speed shaft 1.

Beneficial effect of the present invention is: 1, simple and compact for structure, be provided with rationally, and volume is little, and is in light weight, and major part is a rotary structure, is convenient to processing, and single staged transmission ratio is big, is particularly suited for speed reducer; 2, adopt few multiple tooth engagement of tooth difference, can realize high-precision no gap transmission, total number of teeth in engagement is many, and transmitted power and torque range are big, and transmission efficiency and transmission accuracy are high, operate steadily, and long service life, relative low cost of manufacture, cost performance is high; The power that the present invention transmits can reach more than the 3MW, and moment of torsion can reach more than the 500Tm, and overload capacity is strong, transmission efficiency high (η >=0.85 ~ 0.95), and cost performance is high; 3, adopt the bent axle and the dual planetary gear structure of the crutches structure of 180 ° of phase differences; Make two planetary pinions and low speed ring gear locking phase to engagement; Make retarder possess good dynamic balancing, further strengthen the stability and the reliability of operation, improved transmission efficiency.

Description of drawings

Fig. 1 is the main sectional view of one embodiment of the invention, and double dot dash line is partly for being assembled into the reel and the bearing part of winch among the figure.

Fig. 2 is the A-A sectional view among Fig. 1.

Fig. 3 is the B-B sectional view among Fig. 1.

Embodiment

Further specify embodiments of the invention below in conjunction with accompanying drawing.

Include hollow half axle 2; Axial hole is offered at the middle part of hollow half axle; The periphery correspondence of hollow half axle is provided with two supporting disks 9 separately; Wherein the supporting disk in left side is the expansion bearing dish, locatees with the spline socket and with positioning baffle 13 with the left end of hollow half axle 2, and the supporting disk on right side and hollow half axle connect firmly and be integral; In the axial hole of hollow half axle, install high speed shaft 1 through bearing 3, an end of high speed shaft is an input end, and the other end connects central gear 11 through key 12; The edge circumferentially is evenly equipped with 3 two-throw crank shafts 8 between two supporting disks separately; Two crank phases of described two-throw crank shaft differ from 180 °, and the two ends of two-throw crank shaft are bearing on the supporting disk through bearing 7, and an end extends supporting disk through key 14 connection synchromesh gears 15; 3 synchromesh gears of 3 two-throw crank shafts are meshed with central gear; Two cranks of two-throw crank shaft through bearing 6 respectively with the bearing hole phase configuration of the circumferential setting of two planetary pinions 4, each planetary pinion circumferentially is uniformly distributed with 3 bearing holes, with 3 two-throw crank shaft phase configuration; Two planetary numbers of teeth equate; Be connected latter two planetary pinion with two-throw crank shaft and also differ 180 ° in circumferential phase place, the low speed ring gear 5 outer with being sleeved on two planetary pinions meshes relatively, and the difference of the low speed ring gear and the planetary number of teeth is 1 tooth.Described low speed ring gear two ends link with left and right end cap 16,19 respectively; Wherein right end cap 19 is supported on the hollow half axle through bearing 20; The left end cap of opposite side is supported on an end termination of high speed shaft through bearing 10, and the axis of described low speed ring gear and high speed shaft coincides.The profile of tooth of described planetary pinion and low speed ring gear is the double cycloid profile of tooth.Constituting thus with the high speed shaft for the input end low speed ring gear is the retarder of output terminal.The reduction speed ratio of described retarder is 1:176.

Output terminal of the present invention and reel link and can constitute the few tooth difference winch of swing three-crankshaft in; Its structure mainly is made up of two-part: reel partly comprises reel 18 and bearing spider 23, fixed bearing 22; Reel one end is supported on the bearing spider through axle 25 and bearing 24; The reel the other end connects with low speed ring gear through key 17, and fixed bearing links through key 21 and hollow half axle 2.

Claims

1. many bent axles of swing little tooth difference speed reducer in a kind is characterized in that including hollow half axle, and axial hole is offered at the middle part of hollow half axle, and the periphery correspondence of hollow half axle is provided with two supporting disks separately; In the axial hole of hollow half axle, install high speed shaft through bearing, an end of high speed shaft connects central gear; Between two supporting disks separately along both sides or circumferentially be installed on the two-throw crank shaft more than 2 or 2; Two crank phases of described two-throw crank shaft differ from 180 ° corresponding with two planetary pinions; The two supports of two-throw crank shaft is on supporting disk; And an end extends supporting disk and connects synchromesh gear and be meshed with central gear, two cranks respectively with two planetary both sides or the bearing hole phase configuration that circumferentially is provided with, two planetary numbers of teeth are equal; The low speed ring gear outer with being sleeved on two planetary pinions meshes relatively, and the difference of the low speed ring gear and the planetary number of teeth is 1 ~ 6 tooth.

2. by described interior many bent axles of the swing little tooth difference speed reducer of claim 1, it is characterized in that described two planetary both sides or circumferentially dispose 2 ~ 6 two-throw crank shafts.

3. by claim 1 or 2 described interior many bent axles of swing little tooth difference speed reducers, the difference that it is characterized in that the described low speed ring gear and the planetary number of teeth is 1 ~ 2 tooth.

4. by claim 1 or 2 described interior many bent axles of swing little tooth difference speed reducers, the profile of tooth that it is characterized in that described planetary pinion and low speed ring gear is involute or double cycloid profile of tooth.

5. by claim 1 or 2 described interior many bent axles of swing little tooth difference speed reducers; It is characterized in that described low speed ring gear two ends and end cap link; Wherein the end cap of a side is supported on the hollow half axle through bearing, and the end cap of opposite side is supported on an end termination of high speed shaft through bearing.

6. by claim 1 or 2 described interior many bent axles of swing little tooth difference speed reducers, it is characterized in that described high speed shaft is an input end, described low speed ring gear is an output terminal, constitutes retarder thus.

7. by described interior many bent axles of the swing little tooth difference speed reducer of claim 6, it is characterized in that the low speed ring gear of described retarder and the one-level transmission reduction speed ratio of the slow speed turbine stage that planetary pinion constitutes are 1:10 ~ 135.

8. by claim 1 or 2 described interior many bent axles of swing little tooth difference speed reducers, it is characterized in that the axis of described low speed ring gear and high speed shaft coincides.

9. by claim 1 or 2 described interior many bent axles of swing little tooth difference speed reducers; It is characterized in that described low speed ring gear periphery connects reel; The other end of reel links to each other with bearing spider; Described hollow half axle is fixedly attached on another bearing, the few tooth difference winch of the many bent axles of swing in constituting thus.