CN205244259U

CN205244259U - Reducing motor

Info

Publication number: CN205244259U
Application number: CN201521061128.5U
Authority: CN
Inventors: 赵华清; 严冠舫
Original assignee: SHANGYU BAIGUAN ELECTRIC MOTOR CO Ltd
Current assignee: SHANGYU BAIGUAN ELECTRIC MOTOR CO Ltd
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2016-05-18
Anticipated expiration: 2025-12-17

Abstract

The utility model discloses a reducing motor aims at providing the more steady reducing motor of motor operation, and its technical scheme main points are: a reducing motor, include the motor and with motor interconnect's speed reduction box, the speed reduction box is passed in the pivot of motor, the speed reduction box sets up the planet carrier on motor shaft including rotating ground, sets firmly the setting in the pivot of motor at the sun gear of planet carrier middle position, inlay on the inner wall of speed reduction box and be equipped with big internal tooth, be equipped with respectively the planetary gear with both intermeshing between gear wheel and the sun gear, planetary gear passes through planetary gear and rotates the ground setting on the planet carrier, motor shaft's lower extreme is equipped with the thrust bearing who contradicts with it, thrust bearing sets up in the planet carrier, and the friction that reduces between motor shaft and the speed reduction box through thrust ball bearing increases the stability that the motor moved.

Description

A kind of reducing motor

Technical field

The utility model relates to a kind of reducing motor, and more particularly, it relates to a kind of reducing motor.

Background technology

The worm type of reduction gearing that gear reduction unit is more general has larger gearratio and less volume, and it is high many that transmission efficiency is also wanted, and it has the cost performance outstanding than turbine and worm decelerator, therefore, applies very extensive. It is combined to realize the object that reduces rotating speed and increase torque conventionally with reducing motor, between the two without shaft coupling and adapter, compact conformation, Load Balanced is distributed on planetary gear, thereby bearing capacity is higher, can meet the needs of the high moment of torsion output in little space.

At present, (Chinese patent that application number is 201510468880.X discloses a kind of wire drawing machine reductor) on market, it comprises casing and water pond, casing is divided into upper box, ring gear and lower box, upper box is connected with water pond, power shaft is housed in upper box, ring gear is equipped with planetary gear, planet carrier and idle pulley, planet carrier is connected with power shaft, planetary gear is arranged on described planet carrier by planetary gear connecting axle, planetary gear engages with idle pulley and ring gear, the centerline collineation of idle pulley and power shaft, deboost axle and output shaft are housed in lower box, between deboost axle and output shaft, be provided with a pair of reduction gearing, deboost axle is connected with described idle pulley, the outside link of output shaft is connected with end cap, end cap is connected with shell.

The weak point of this patent is: this patent drives the planetary gear running on planet carrier by power shaft, planetary gear engages with ring gear, the running of planetary gear realizes the deceleration to upper box with regard to the running of drive ring gear, conflict by mode and the lower box of bearing in the bottom of power shaft, owing to bearing the weight of motor on power shaft and add the weight of power shaft upper mounting component, the rotation of power shaft is subject to downward axial force can be made to produce and rub between power shaft and lower box, cause the breakage of power shaft, in the time that the rotatory force of bearing on power shaft is excessive, friction between power shaft and lower box can make power shaft produce the axial power that jumps, make the whole reducing motor can not even running, motor fluctuation of service can cause and produce unnecessary breakage to can not well engaging between motor gear and gear.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of motor operation reducing motor more stably.

For achieving the above object, the utility model provides following technical scheme: a kind of reducing motor, comprise motor and with the interconnective deceleration box of motor, the rotating shaft of described motor is through deceleration box, described deceleration box comprises the planet carrier being arranged on rotationally on machine shaft, in the rotating shaft of motor, be installed with the sun gear that is arranged on planet carrier middle position, on the inwall of described deceleration box, be embedded with large internal tooth, between described large internal tooth and sun gear, be provided with respectively and both intermeshing planetary gears, described planetary gear is arranged on planet carrier rotationally by planet wheel spindle, the lower end of described machine shaft is provided with the thrust bearing of conflicting with it, described thrust bearing is arranged in planet carrier.

The utility model is further set to: on described planet carrier, be equipped with the bolt for fixing thrust bearing, the inner and the thrust bearing of described bolt are inconsistent.

The utility model is further set to: between described planetary gear and planet wheel spindle, be provided with the first ball bearing, the two ends of described the first ball bearing are fixed on planetary gear by planetary gear jump ring.

The utility model is further set to: the below of described the first ball bearing is provided with ring body, and described ring body is with the coaxial setting of planet wheel spindle and between the first ball bearing and planet carrier, and the inner ring of the upper surface of described ring body and the first ball bearing is conflicted.

The utility model is further set to: described deceleration box also comprises power transmission shaft, described power transmission shaft is connected with one end key of machine shaft and coaxially arranges, described transmission shafts to two ends be connected with deceleration box by the second ball bearing, two described the second ball bearings are tightly connected by outer bearing cover and inside cap towards the outside of connecting portion, between described inside cap, outer bearing cover and the second ball bearing, are provided with oil groove.

The utility model is further set to: described inside cap and outer bearing cover are equipped with oil sealing away from a side of the second ball bearing.

Compared with prior art, the beneficial effects of the utility model are: by thrust bearing, the lower end of machine shaft is played the effect of conflict, prevent that machine shaft is under the effect of gravity, the friction that the lower end of rotating shaft is unnecessary because casing produces, the frictional force of machine shaft and casing adds when the rotating speed of machine shaft is excessive, can make machine shaft produce axial play causes motor to shake, by thrust bearing, machine shaft is supported to transmission, reduce the frictional force between machine shaft and casing, make the more steady of motor rotation.

Brief description of the drawings

Fig. 1 is the structural representation of reducing motor;

Fig. 2 is A portion enlarged drawing in Fig. 1;

Fig. 3 is B portion enlarged drawing in Fig. 1;

Fig. 4 is C portion enlarged drawing in Fig. 1.

Reference numeral: 1, rotating shaft; 2, deceleration box; 3, power transmission shaft; 4, planet carrier; 5, sun gear; 6, planetary gear; 7, planet wheel spindle; 8, the first ball bearing; 9, thrust bearing; 10, large internal tooth; 11, planetary gear jump ring; 12, the second ball bearing; 13, outer bearing cover; 14, inside cap; 15, oil groove; 16, oil sealing; 17, bolt; 18, ring body.

Detailed description of the invention

Be described further referring to figs. 1 through 4 pairs of reducing motors.

A kind of reducing motor, comprise motor and with the interconnective deceleration box 2 of motor, the rotating shaft 1 of described motor is through deceleration box 2, described deceleration box 2 comprises the planet carrier 4 being arranged on rotationally on machine shaft 1, in the rotating shaft 1 of motor, be installed with the sun gear 5 that is arranged on planet carrier 4 middle positions, on the inwall of described deceleration box 2, be embedded with large internal tooth 10, between described large internal tooth 10 and sun gear 5, be provided with respectively and both intermeshing planetary gears 6, described planetary gear 6 is arranged on planet carrier 4 rotationally by planet wheel spindle 7, the lower end of described machine shaft 1 is provided with the thrust bearing 9 of conflicting with it, described thrust bearing 9 is arranged in planet carrier 4.

By thrust bearing 9, the lower end of machine shaft 1 is played the effect of conflict, prevent that machine shaft 1 is under the effect of gravity, the friction that the lower end of rotating shaft 1 is unnecessary because casing produces, the frictional force of machine shaft 1 and casing adds when the rotating speed of machine shaft 1 is excessive, can make machine shaft 1 produce axial play causes motor to shake, by thrust bearing 9, machine shaft 1 is supported to transmission, reduce the frictional force between machine shaft 1 and casing, make the more steady of motor rotation.

On described planet carrier 4, be equipped with the bolt 17 for fixing thrust bearing 9, the inner of described bolt 17 and thrust bearing 9 are inconsistent.

Rotating bolt 17, the mode being threaded with planet carrier 4 by bolt 17 realizes conflicts to the outer ring of thrust bearing 9 steps, the mode of conflicting by bolt 17 reduces the gap existing between thrust bearing 9 and planet carrier 4, in existence rotation due to thrust bearing 9 gaps, can produce vibration to a certain extent, and make thrust bearing 9 can not produce vibration in the process of running by the fixing mode of bolt 17, use the more steady of motor operation.

Between described planetary gear 6 and planet wheel spindle 7, be provided with the first ball bearing 8, the two ends of described the first ball bearing 8 are fixed on planetary gear 6 by planetary gear jump ring 11. Realize fixing to planetary gear 6 by planetary gear jump ring 11, make planetary gear 6 can friction not occur with the surface of planet carrier 4 in rotation and cause the operating shaking phenomenon of motor, increase the stability of motor operation.

The below of described the first ball bearing 8 is provided with ring body 18, and described ring body 18 is with the coaxial setting of planet wheel spindle 7 and between the first ball bearing 8 and planet carrier 4, and the inner ring of the upper surface of described ring body 18 and the first ball bearing 8 is conflicted.

Planetary gear 6 can produce axial footpath power in the process of running, radial force all concentrates on the planetary gear jump ring 11 that is positioned at planetary gear 6 belows, be easy to cause the breakage of below planetary gear jump ring 11, by arranging of ring body 18, power is delivered on ring body 18 and is carried, reduce the stressed of below planetary gear jump ring 11, when extending 11 service life of planetary gear jump ring, increase the stability of motor operation.

Described deceleration box 2 also comprises power transmission shaft 3, described power transmission shaft 3 is connected with one end key of machine shaft 1 and coaxially arranges, the axial two ends of described power transmission shaft 3 are connected with deceleration box 2 by the second ball bearing 12, two described the second ball bearings 12 are tightly connected by outer bearing cover 13 and inside cap 14 towards the outside of connecting portion, between described inside cap 14, outer bearing cover 13 and the second ball bearing 12, are provided with oil groove 15.

Power transmission shaft 3 length of growing in the required use of specific position, and the increase meeting of power transmission shaft 3 length is because the elongated power transmission shaft 3 that makes of distance of stress point and the point of application produces torsion in the process of running, the torsion that the too fast meeting of running speed produces turning cylinder becomes on large machine and causes vibration with the friction of deceleration box 2, play and support and the effect that reduces friction by the setting of the second ball bearing 12, the effect of playing lubricated minimizing friction in countershaft 1 operation process that arranges by the first rotating shaft 1 with oil groove 15, not only increase the stability of reducing motor operation but also extended the service life of rotating shaft 1, the noise having produced while having reduced reducing motor operation.

Described inside cap 14 is equipped with oil sealing 16 with outer bearing cover 13 away from a side of the second ball bearing 12. By oil sealing 16, the lubricating oil in oil groove 15 is played the effect of sealing, prevent that the lubricated leakage in oil groove 15 from not reaching good lubricant effect, make the more steady of reducing motor operation and reduced the noise that motor moves.

The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model. It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a reducing motor, comprise motor and with the interconnective deceleration box of motor, the rotating shaft of described motor is through deceleration box, described deceleration box comprises the planet carrier being arranged on rotationally on machine shaft, in the rotating shaft of motor, be installed with the sun gear that is arranged on planet carrier middle position, on the inwall of described deceleration box, be embedded with large internal tooth, between described large internal tooth and sun gear, be provided with respectively and both intermeshing planetary gears, described planetary gear is arranged on planet carrier rotationally by planet wheel spindle, it is characterized in that: the lower end of described machine shaft is provided with the thrust bearing of conflicting with it, described thrust bearing is arranged in planet carrier.

2. a kind of reducing motor according to claim 1, is characterized in that: on described planet carrier, be equipped with the bolt for fixing thrust bearing, the inner and the thrust bearing of described bolt are inconsistent.

3. a kind of reducing motor according to claim 1, is characterized in that: between described planetary gear and planet wheel spindle, be provided with the first ball bearing, the two ends of described the first ball bearing are fixed on planetary gear by planetary gear jump ring.

4. a kind of reducing motor according to claim 3, it is characterized in that: the below of described the first ball bearing is provided with ring body, described ring body is with the coaxial setting of planet wheel spindle and between the first ball bearing and planet carrier, and the inner ring of the upper surface of described ring body and the first ball bearing is conflicted.

5. a kind of reducing motor according to claim 1, it is characterized in that: described deceleration box also comprises power transmission shaft, described power transmission shaft is connected with one end key of machine shaft and coaxially arranges, described transmission shafts to two ends be connected with deceleration box by the second ball bearing, two described the second ball bearings are tightly connected by outer bearing cover and inside cap towards the outside of connecting portion, between described inside cap, outer bearing cover and the second ball bearing, are provided with oil groove.

6. a kind of reducing motor according to claim 5, is characterized in that: described inside cap and outer bearing cover are equipped with oil sealing away from a side of the second ball bearing.