阅读说明：本技术 一种环链电动提升机的行星减速机构 (Planetary speed reducing mechanism of endless chain electric hoist ) 是由 张照 于 2021-01-14 设计创作，主要内容包括：本发明提供了一种环链电动提升机的行星减速机构,包括机座、机壳、机盖、输入齿轮、输入轴、输出轴和行星齿轮组,机座、机壳和机盖依次用螺钉连接固定,输入齿轮套在输入轴上与输入轴同步转动,机壳和机盖内均固定有轴承,输入轴通过轴承相对机壳和机盖自由转动,行星齿轮组包括固定齿圈、活动齿盘、开有中心孔的安装板和至少三个行星齿轮,固定齿圈固定在机壳上,固定齿圈内侧具有一圈内齿与行星齿轮啮合,行星齿轮转动连接在安装板上,输入轴的一端具有驱动花键且穿过中心孔与行星齿轮啮合,活动齿盘套在行星齿轮外且也有一圈内齿与行星齿轮啮合,输出轴与活动齿盘连接且同步转动。行星齿轮高效传动,零配件少,有效降低传动功率损耗。(The invention provides a planetary speed reducing mechanism of a circular chain electric elevator, which comprises a base, a shell, a cover, an input gear and an input shaft, the output shaft and the planetary gear set, the base, the casing and the cover are sequentially fixed by screw connection, the input gear sleeve rotates synchronously with the input shaft on the input shaft, bearings are fixed in the casing and the cover, the input shaft freely rotates relative to the casing and the cover through the bearings, the planetary gear set comprises a fixed gear ring, a movable gear disc, a mounting plate with a central hole and at least three planetary gears, the fixed gear ring is fixed on the casing, a circle of internal teeth are arranged on the inner side of the fixed gear ring and meshed with the planetary gears, the planetary gears are rotatably connected on the mounting plate, a driving spline is arranged at one end of the input shaft and penetrates through the central hole to be meshed with the planetary gears, the movable gear disc is sleeved outside the planetary gears and also has a circle of internal teeth to be meshed with the planetary. The planetary gear drives with high efficiency, and spare and accessory parts are few, effectively reducing transmission power loss.)

1. The utility model provides a planetary reduction mechanism of endless chain electric hoist, includes frame, casing, cover, input gear, input shaft, output shaft and planetary gear set, its characterized in that, frame, casing and cover are fixed with the screw connection in proper order, and the input gear cover rotates with the input shaft is synchronous on the input shaft, all is fixed with the bearing in casing and the cover, and the input shaft passes through the relative casing of bearing and cover free rotation, planetary gear set includes fixed ring gear, movable fluted disc, opens mounting panel and at least three planetary gear that have the centre bore, and fixed ring gear is fixed on the casing, and fixed ring gear inboard has round internal tooth and planetary gear meshing, and planetary gear rotates to be connected on the mounting panel, and planetary gear uses the centre bore to be centre of a circle circumference equipartition, and the one end of input shaft has the drive spline and passes centre bore and planetary gear meshing, is equipped with the circular recess that, the movable fluted disc is sleeved outside the planetary gear and is also provided with a circle of internal teeth meshed with the planetary gear, the machine base is provided with a shaft hole for the output shaft to pass through, and the output shaft is connected with the movable fluted disc and synchronously rotates.

2. The planetary reduction mechanism of an electric endless chain hoist as claimed in claim 1, wherein the casing has a protruding ring gear, and the fixed ring gear is fitted over the ring gear and fixed to the casing.

3. The planetary reduction mechanism of the electric endless chain hoist of claim 2, wherein the mounting plate is a triangular plate, three planetary gears are provided on both sides of the planetary gears, and the two mounting plates are respectively attached to the ring gear and the movable gear plate.

4. The planetary reduction mechanism of an electric endless chain hoist as claimed in claim 1, wherein the fixed ring gear and the movable toothed disc have the same outer diameter and are attached to each other.

5. The planetary reduction mechanism of an electric ring chain hoist of claim 1, characterized in that one end of the output shaft has a power output spline, the center of the movable gear disk has a spline hole, and the power output spline is engaged in the spline hole.

6. The planetary reduction mechanism of the electric hoist with endless chain according to claim 1, wherein the axial line of the input shaft and the axial line of the output shaft are located on the same straight line.

7. The planetary reduction mechanism of an electric endless chain hoist as claimed in claim 1, wherein one half of the planetary gear is engaged with the movable ring gear and the other half of the planetary gear is engaged with the fixed ring gear.

Technical Field

The invention belongs to the technical field of electric hoists, and relates to a planetary speed reducing mechanism of a circular chain electric hoist.

Background

The ring chain electric hoist belongs to one of electric block, and the ring chain electric hoist includes motor and planetary reducer, and planetary reducer is as a traditional decelerator, can improve the torsion of lifting machine output shaft greatly to improve the load of lifting machine.

The invention discloses an electric hoist using a planetary reducer, which comprises a shell, wherein a motor, the planetary reducer, a transmission shaft and a fixed shaft are arranged in the shell, a lifting hole is formed in the lower surface of the shell, a steel wire is wound on a winding drum, one end of the steel wire penetrates through the lifting hole and is connected with a lifting hook, an input shaft is arranged at one end of the planetary reducer, an output shaft is arranged at the other end of the planetary reducer, the input shaft is connected with the motor, the output shaft is connected with the transmission shaft, the transmission shaft is connected with the fixed shaft, one end of the motor is fixed on the inner wall of the shell, a mounting hole is formed in the inner wall of the shell, the inner wall of the mounting hole is connected with one end of the fixed shaft, the transmission shaft penetrates. The electric hoist drives a sun wheel through a motor, the sun wheel drives three planet wheels to rotate, the three planet wheels are respectively connected with a driven gear through respective transmission shafts, and the three driven gears drive an output gear and an output shaft. The mode has the defects of excessive transmission shafts, large occupied space, more gears and large transmission power loss.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a planetary speed reducing mechanism of a ring chain electric elevator, which has a stable structure and few parts, and effectively reduces transmission power loss by meshing a planetary gear with a fixed gear ring and a movable gear ring respectively.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a planetary reduction mechanism of endless chain electric hoist, includes frame, casing, cover, input gear, input shaft, output shaft and planetary gear set, its characterized in that, frame, casing and cover are fixed with the screw connection in proper order, and the input gear cover rotates with the input shaft is synchronous on the input shaft, all is fixed with the bearing in casing and the cover, and the input shaft passes through the relative casing of bearing and cover free rotation, planetary gear set includes fixed ring gear, movable fluted disc, opens mounting panel and at least three planetary gear that have the centre bore, and fixed ring gear is fixed on the casing, and fixed ring gear inboard has round internal tooth and planetary gear meshing, and planetary gear rotates to be connected on the mounting panel, and planetary gear uses the centre bore to be centre of a circle circumference equipartition, and the one end of input shaft has the drive spline and passes centre bore and planetary gear meshing, is equipped with the circular recess that, the movable fluted disc is sleeved outside the planetary gear and is also provided with a circle of internal teeth meshed with the planetary gear, the machine base is provided with a shaft hole for the output shaft to pass through, and the output shaft is connected with the movable fluted disc and synchronously rotates.

The motor drives the input gear to rotate, the input gear and the input shaft synchronously rotate, the driving spline of the input shaft drives the planet gear to rotate in the fixed gear ring, the movable gear adjacent to the fixed gear ring also rotates due to the movement of the planet gear, and the whole movable fluted disc rotates to drive the output shaft to rotate together.

Furthermore, the casing is provided with a protruding annular tooth, and the fixed gear ring is sleeved on the annular tooth and fixed with the casing.

Furthermore, the mounting panel is the set-square, all sets up the mounting panel in planetary gear both sides, and planetary gear quantity is three, and two mounting panels lean on with annular tooth and activity fluted disc respectively mutually.

Furthermore, the fixed gear ring and the movable fluted disc have the same outer diameter and are attached together.

Furthermore, one end of the output shaft is provided with a power output spline, the center of the movable gear disc is provided with a spline hole, and the power output spline is clamped in the spline hole.

Furthermore, the axis of the input shaft and the axis of the output shaft are located on the same straight line.

Furthermore, one half of the planetary gear is meshed with the movable gear disc, and the other half of the planetary gear is meshed with the fixed gear ring.

Compared with the prior art, the planetary speed reducing mechanism of the endless chain electric hoist has the following advantages:

1. the planetary gear drives efficiently, the reduction ratio can reach 1:110, the torque is greatly increased, the load capacity is high, and the transmission power loss is effectively reduced.

2. Stable in structure, accessories are few, through planetary gear respectively with fixed ring gear and movable ring gear meshing for this mechanism structure is compacter, and is small, vibrates for a short time, and it is convenient to install, does not have lubricating oil to reveal, and it is convenient to maintain.

Drawings

Fig. 1 is a sectional view of a planetary reduction mechanism of the present endless chain electric hoist.

Fig. 2 is a schematic perspective view of the planetary reduction mechanism of the present endless chain electric hoist.

FIG. 3 is an assembly view of the planetary gear set with the input and output shafts.

Fig. 4 is a cut-away view of the planetary gear set.

Fig. 5 is a schematic structural view of the housing.

FIG. 6 is a schematic view of the construction of the planetary gear and the mounting plate.

In the figure, 1, a machine base; 11. a circular groove; 2. a housing; 21. an annular tooth; 3. a machine cover; 4. an input gear; 5. an input shaft; 51. a drive spline; 6. an output shaft; 61. a power output spline; 7. a planetary gear set; 71. fixing the gear ring; 72. a movable fluted disc; 73. a planetary gear; 74. mounting a plate; 75. a splined bore; 76. a central bore; 8. and a bearing.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-3, the planetary reduction mechanism of the present endless chain electric elevator comprises a base 1, a casing 2, a cover 3, an input gear 4, an input shaft 5, an output shaft 6 and a planetary gear set 7, wherein the base 1, the casing 2 and the cover 3 are sequentially fixed by screws, the input gear 4 is sleeved on the input shaft 5 and rotates synchronously with the input shaft 5, bearings 8 are fixed in the casing 2 and the cover 3, the input shaft 5 freely rotates relative to the casing 2 and the cover 3 through the bearings 8, the planetary gear set 7 comprises a fixed gear ring 71, a movable gear disc 72, a mounting plate 74 with a central hole 76 and at least three planetary gears 73, the fixed gear ring 71 is fixed on the casing 2, a circle of internal teeth are arranged inside the fixed gear ring 71 and are meshed with the planetary gears 73, the planetary gears 73 are rotatably connected on the mounting plate 74, the planetary gears 73 are circumferentially and uniformly distributed with the central hole 76 as a circle center, one end of the input shaft 5 is provided, the base 1 is provided with a circular groove 11 for the free rotation of the movable gear, the movable gear disc 72 is sleeved outside the planetary gear 73 and also provided with a circle of internal teeth meshed with the planetary gear 73, the base 1 is provided with a shaft hole for the output shaft 6 to pass through, and the output shaft 6 is connected with the movable gear disc 72 and rotates synchronously.

As shown in fig. 4, half of the pinion gears 73 are engaged with the movable gear 72, and the other half of the pinion gears 73 are engaged with the fixed ring gear 71.

As shown in fig. 5, the housing 2 has a protruding ring-shaped tooth 21, and the fixed ring gear 71 is fixed to the housing 2 by being fitted over the ring-shaped tooth 21.

As shown in fig. 6, the mounting plates 74 are triangular plates, the mounting plates 74 are disposed on both sides of the planetary gears 73, the number of the planetary gears 73 is three, and the two mounting plates 74 are respectively abutted to the annular teeth 21 and the movable gear plate 72.

The axial lead of the input shaft 5 and the axial lead of the output shaft 6 are located on the same straight line, the fixed gear ring 71 and the movable gear disc 72 have the same outer diameter and are attached together, one end of the output shaft 6 is provided with a power output spline 61, the center of the movable gear disc 72 is provided with a spline hole 75, and the power output spline 61 is clamped and embedded in the spline hole 75.

The motor drives the input gear 4 to rotate, the input gear 4 and the input shaft 5 rotate synchronously, the driving spline 51 of the input shaft 5 drives the planet gear 73 to rotate in the fixed gear ring 71, the movable gear adjacent to the fixed gear ring 71 also rotates due to the movement of the planet gear 73, and the whole movable gear disc 72 rotates to drive the output shaft 6 to rotate together. The planetary gear 73 is in high-efficiency transmission, the reduction ratio can reach 1:110, the torque is greatly increased, and the load capacity is high. Stable in structure, accessories are few, through planetary gear 73 respectively with fixed ring gear 71 and movable ring gear meshing for this mechanism structure is compacter, and is small, and the vibration is little, and it is convenient to install, does not have lubricating oil to reveal, and it is convenient to maintain.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.