CN206409579U - Three-stage planetary speed reducer - Google Patents

Abstract

The utility model discloses a kind of three-stage planetary speed reducer, including：Input flange, the ring gear being connected by the first screw with input flange, the output flange being connected by the second screw with ring gear, counter flange is provided between the input flange and ring gear, input shaft is provided with by input shaft bearing in the excessive flange, one end of the input shaft is stretched into input flange, the other end of the input shaft is stretched into be connected in ring gear with one-level sun wheel shaft, one-level sun gear is provided with the one-level sun wheel shaft, the one-level sun gear is intermeshed with some primary planet pinions, the primary planet pinion is intermeshed with ring gear, the primary planet pinion is rolled by the full needle bearing of one-level and is arranged on primary planet pinion bearing pin, one end of the primary planet pinion bearing pin is stretched out primary planet pinion and is connected with primary planet carrier.

Description

Three-stage planetary speed reducer

Technical field

The utility model is related to a kind of reductor, more particularly to a kind of three-stage planetary speed reducer.

Background technology

Planetary gear in planetary reducer except can as fixed axis gear around in addition to the rotary shaft of oneself is rotated, Their rotary shaft is also as planet carrier around other gears（Sun gear）Axis rotate, around oneself axis rotation turn into from Turn, the rotation around other Gear axis is referred to as revolution, just as the planet in the solar system, hence obtains one's name.It can be used in existing For robot industry, such as parallel robot or linear robot, Digit Control Machine Tool and machining center field are also usually applied to, Application is wider.Current planetary reducer majority uses single-pinion planetary gear structure, single-pinion planetary gear structure output Moment of torsion is smaller, and the scope of application is small, and structural behaviour is poor, is easily damaged, and changes frequent, while the planet carrier of existing planetary reducer All it is directly to drive vacantly to rotate in ring gear by planet pinion shaft, without branch during being rotated due to planet carrier Support, rotates unstable, time length is easily shifted over and deformed, and causes planetary reducer not use normally, reductor makes Use short life.

Utility model content

Technical problem to be solved in the utility model is：A kind of three stage planetary reduction of planet carrier slow-roll stabilization is provided Machine.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：Three-stage planetary speed reducer, including： Input flange, the ring gear being connected by the first screw with input flange, by the second screw be connected with ring gear it is defeated Go out flange, counter flange is provided between the input flange and ring gear, input shaft bearing is passed through in the excessive flange Be provided with input shaft, one end of the input shaft is stretched into input flange, the other end of the input shaft stretch into ring gear with One-level sun wheel shaft is connected, and is provided with one-level sun gear in the one-level sun wheel shaft, the one-level sun gear with it is some Primary planet pinion is intermeshed, and the primary planet pinion is intermeshed with ring gear, and the primary planet pinion passes through one The full needle bearing of level, which is rolled, to be arranged on primary planet pinion bearing pin, and one-level row is stretched out in one end of the primary planet pinion bearing pin Star gear is connected with primary planet carrier, and the primary planet carrier is rotatably arranged in ring gear by primary planet carrier bearing, Secondary solar gear axle is provided with the primary planet carrier, secondary solar gear is provided with the secondary solar gear axle, institute State secondary solar gear to be intermeshed with some secondary planetary gears, the secondary planetary gear is intermeshed with ring gear, described Secondary planetary gear is rolled by two grades of full needle bearings and is arranged on secondary planetary gear bearing pin, the secondary planetary gear pin One end of axle is stretched out secondary planetary gear and is connected with secondary planet frame, and the secondary planet frame is turned by secondary planet frame bearing It is dynamic to be arranged in ring gear, three-level sun wheel shaft is provided with the secondary planet frame, is set in the three-level sun wheel shaft Be equipped with three-level sun gear, the three-level sun gear is intermeshed with some three-stage planetary gears, the three-stage planetary gear with it is interior Gear ring is intermeshed, and the three-stage planetary gear is rolled by the full needle bearing of three-level and is arranged on three-stage planetary gear bearing pin, One end of the three-stage planetary gear bearing pin is stretched out three-stage planetary gear and is connected with third-level planetary frame, and the third-level planetary frame leads to Cross third-level planetary frame bearing to be rotatably arranged in ring gear, output is provided with by exporting bearing block in the output flange Axle, one end of the output shaft is stretched into be connected in ring gear with third-level planetary frame, and the other end of the output shaft stretches out output Flange.

The utility model has the advantages that：Above-mentioned three-stage planetary speed reducer, is slowed down using three-stage planetary gear, output torque Greatly, applied widely, structural behaviour is good, is hardly damaged, while third-level planetary frame is rotatably arranged on into internal tooth by bearing respectively In circle, planet carrier slow-roll stabilization is not susceptible to shift and deformed, and reductor service life is long.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model three-stage planetary speed reducer.

In figure：1st, input flange, the 2, first screw, 3, ring gear, the 4, second screw, 5, output flange, 6, counter flange, 7th, input shaft bearing, 8, input shaft, 9, one-level sun wheel shaft, 10, one-level sun gear, 11, primary planet pinion, 12, one-level completely rolls Needle bearing, 13, primary planet pinion bearing pin, 14, primary planet carrier, 15, primary planet carrier bearing, 16, secondary solar gear axle, 17th, secondary solar gear, 18, secondary planetary gear, 19, two grades of full needle bearings, 20, secondary planetary gear bearing pin, 21, two grades of rows Carrier, 22, secondary planet frame bearing, 23, three-level sun wheel shaft, 24, three-level sun gear, 25, three-stage planetary gear, 26, three-level Full needle bearing, 27, three-stage planetary gear bearing pin, 28, third-level planetary frame, 29, third-level planetary frame bearing, 30, output bearing block, 31st, output shaft.

Embodiment

Particular content of the present utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.

As shown in figure 1, three-stage planetary speed reducer, including：Input flange 1, is connected by the first screw 2 with input flange 1 The ring gear 3 connect, the output flange 5 being connected by the second screw 4 with ring gear 3, in the input flange 1 and ring gear 3 Between be provided with counter flange 6, input shaft 8 is provided with by input shaft bearing 7 in the excessive flange 6, the input shaft 8 One end is stretched into input flange 1, and the other end of the input shaft 8 is stretched into be connected in ring gear 3 with one-level sun wheel shaft 9, One-level sun gear 10, the one-level sun gear 10 and some phases of primary planet pinion 11 are provided with the one-level sun wheel shaft 9 Mutually engagement, the primary planet pinion 11 is intermeshed with ring gear 3, and the primary planet pinion 11 passes through the full needle roller axle of one-level Hold 12 rollings to be arranged on primary planet pinion bearing pin 13, primary planet tooth is stretched out in one end of the primary planet pinion bearing pin 13 Wheel 11 is connected with primary planet carrier 14, and the primary planet carrier 14 is rotatably arranged on ring gear by primary planet carrier bearing 15 In 3, secondary solar gear axle 16 is provided with the primary planet carrier 14, two grades are provided with the secondary solar gear axle 16 Sun gear 17, the secondary solar gear 17 is intermeshed with some secondary planetary gears 18, the secondary planetary gear 18 with it is interior Gear ring 3 is intermeshed, and the secondary planetary gear 18 is rolled by two grades of full needle bearings 19 and is arranged on secondary planetary gear pin On axle 20, one end of the secondary planetary gear bearing pin 20 is stretched out secondary planetary gear 18 and is connected with secondary planet frame 21, institute State secondary planet frame 21 to be rotatably arranged in ring gear 3 by secondary planet frame bearing 22, set on the secondary planet frame 21 Three-level sun wheel shaft 23 is equipped with, three-level sun gear 24, the three-level sun gear 24 are provided with the three-level sun wheel shaft 23 It is intermeshed with some three-stage planetary gears 25, the three-stage planetary gear 25 is intermeshed with ring gear 3, the third-level planetary Gear 25 is rolled by the full needle bearing 26 of three-level and is arranged on three-stage planetary gear bearing pin 27, the three-stage planetary gear bearing pin 27 one end is stretched out three-stage planetary gear 25 and is connected with third-level planetary frame 28, and the third-level planetary frame 28 passes through third-level planetary frame Bearing 29 is rotatably arranged in ring gear 3, and output shaft 31, institute are provided with by exporting bearing block 30 in the output flange 5 The one end for stating output shaft 31 is stretched into ring gear 3 and is connected with third-level planetary frame 28, and the other end stretching of the output shaft 31 is defeated Go out flange 5.

Above-mentioned three-stage planetary speed reducer is driven in use, the input shaft 8 of reductor is connected with the motor shaft of motor The motor shaft band driven input shaft 8 of dynamic motor is rotated in bearing of input shaft 7, and input shaft 8 drives one-level sun wheel shaft 9 to rotate, and one Level sun wheel shaft 9 drives one-level sun gear 10 to rotate, and one-level sun gear 10 drives and its intermeshing primary planet pinion 11 Rotated in ring gear 3, primary planet pinion 11 drives primary planet carrier 14 in one-level row by primary planet pinion bearing pin 13 Rotated in carrier bearing 15, while primary planet pinion 11 revolves round the sun in ring gear 3, primary planet pinion 11 is full by one-level The autobiography on primary planet pinion bearing pin 13 of needle bearing 12, primary planet carrier 14 drives secondary solar gear axle 16 to rotate, two grades Sun wheel shaft 16 drives secondary solar gear 17 to rotate, and secondary solar gear 17 drives to exist with its intermeshing secondary planetary gear 18 Rotated in ring gear 3, secondary planetary gear 18 drives secondary planet frame 21 in secondary planet by secondary planetary gear bearing pin 20 Rotated in frame bearing 22, while secondary planetary gear 18 revolves round the sun in ring gear 3, secondary planetary gear 18 passes through two grades of full rollings The autobiography on secondary planetary gear bearing pin 20 of needle bearing 19, secondary planet frame 21 drives three-level sun wheel shaft 23 to rotate, and three-level is too Positive wheel shaft 23 drives three-level sun gear 24 to rotate, including the drive of three-level sun gear 24 and its intermeshing three-stage planetary gear 25 Rotated in gear ring 3, three-stage planetary gear 25 drives third-level planetary frame 28 in third-level planetary frame by three-stage planetary gear bearing pin 27 Rotated in bearing 26, while three-stage planetary gear 25 revolves round the sun in ring gear 3, three-stage planetary gear 25 passes through the full needle roller of three-level The autobiography on three-stage planetary gear bearing pin 27 of bearing 26, third-level planetary frame 28 drives output shaft 31 to be rotated in output shaft bearing 30 Realize the output of moment of torsion.

Above-mentioned three-stage planetary speed reducer, is slowed down using three-stage planetary gear, and output torque is big, applied widely, structural Can be good, it is hardly damaged, while third-level planetary frame is rotatably arranged in ring gear by bearing respectively, planet carrier slow-roll stabilization, It is not susceptible to shift and deforms, reductor service life is long.

Claims (1)

1. three-stage planetary speed reducer, it is characterised in that：Including：Input flange（1）, pass through the first screw（2）With input flange（1） The ring gear being connected（3）, pass through the second screw（4）With ring gear（3）The output flange being connected（5）, in the input method It is blue（1）With ring gear（3）Between be provided with counter flange（6）, in the counter flange（6）It is interior to pass through input shaft bearing（7）Set There is input shaft（8）, the input shaft（8）One end stretch into input flange（1）It is interior, the input shaft（8）The other end stretch into Gear ring（3）Interior and one-level sun wheel shaft（9）It is connected, in the one-level sun wheel shaft（9）On be provided with one-level sun gear（10）, The one-level sun gear（10）With some primary planet pinions（11）Intermeshing, the primary planet pinion（11）With ring gear （3）Intermeshing, the primary planet pinion（11）Pass through the full needle bearing of one-level（12）Rolling is arranged on primary planet pinion Bearing pin（13）On, the primary planet pinion bearing pin（13）One end stretch out primary planet pinion（11）With primary planet carrier（14） It is connected, the primary planet carrier（14）Pass through primary planet carrier bearing（15）It is rotatably arranged on ring gear（3）It is interior, described one Level planet carrier（14）On be provided with secondary solar gear axle（16）, in the secondary solar gear axle（16）On be provided with secondary solar gear （17）, the secondary solar gear（17）With some secondary planetary gears（18）Intermeshing, the secondary planetary gear（18）With Ring gear（3）Intermeshing, the secondary planetary gear（18）Pass through two grades of full needle bearings（19）Rolling is arranged on two grades of rows Star gear bearing pin（20）On, the secondary planetary gear bearing pin（20）One end stretch out secondary planetary gear（18）With secondary planet Frame（21）It is connected, the secondary planet frame（21）Pass through secondary planet frame bearing（22）It is rotatably arranged on ring gear（3）It is interior, The secondary planet frame（21）On be provided with three-level sun wheel shaft（23）, in the three-level sun wheel shaft（23）On be provided with three-level Sun gear（24）, the three-level sun gear（24）With some three-stage planetary gears（25）Intermeshing, the three-stage planetary gear （25）With ring gear（3）Intermeshing, the three-stage planetary gear（25）Pass through the full needle bearing of three-level（26）Rolling is arranged on Three-stage planetary gear bearing pin（27）On, the three-stage planetary gear bearing pin（27）One end stretch out three-stage planetary gear（25）With three Level planet carrier（28）It is connected, the third-level planetary frame（28）Pass through third-level planetary frame bearing（29）It is rotatably arranged on ring gear （3）It is interior, in the output flange（5）It is interior by exporting bearing block（30）It is provided with output shaft（31）, the output shaft（31）'s Ring gear is stretched into one end（3）Interior and third-level planetary frame（28）It is connected, the output shaft（31）The other end stretch out output flange （5）.