CN201407193Y

CN201407193Y - Structure for stabilizing motor gear reducer output shaft of circulating fan

Info

Publication number: CN201407193Y
Application number: CN200920144858XU
Authority: CN
Inventors: 林隆兴
Original assignee: LIMING MACHINERY CO Ltd
Current assignee: LIMING MACHINERY CO Ltd
Priority date: 2009-03-03
Filing date: 2009-03-03
Publication date: 2010-02-17
Anticipated expiration: 2019-03-03

Abstract

A structure for stabilizing a motor gear reducer output shaft of a circulating fan comprises a motor, a planetary gear set, a front shaft cover and a group of bearings. The motor comprises a motor front cover and a motor bottom cover, wherein the front shaft cover can be penetrated by a driven shaft of the planetary gear set; and two groups of ball bearings, between which a thrust bearing is placed, are arranged between the penetrating section of the driven shaft and the inner surface of an accommodating hole of the front shaft cover. The ball bearings can be stopped by a baffle wall flange inthe accommodating hole of the front shaft cover, so that the side force coming from the cross wind of the circulating fan can be born by the thrust bearing and transmitted to the baffle wall flange in the accommodating hole of the front shaft cover for being stopped, so as to ensure the stability and efficiency of the transmission, reduce noises and prolong the service life; the assembly of the structure is easy; and the arrangement of the planetary gear set can greatly reduce the size of the front shaft cover.

Description

The motor reducer output shaft rock-steady structure of circulating fan

Technical field

The utility model provides a kind of technical field of motor reducer of circulating fan, refers to its technical motor reducer output shaft rock-steady structure that a kind of circulating fan is provided especially, and it supports output shaft by thrust bearing, makes lateral force also not influence use.

Background technique

Press, consult TaiWan, China application case number No. 96210422 " the formula rotating shaft that directly goes out of ventilation fan motor drives structure " novel patent case, it adopts the high-speed type motor body of low coil number of poles and a preceding shaft-cup to be formed by one; It is characterized in that:

Before shaft-cup mat periphery be provided with a plurality of substantially horizontal locking bolts and lock backward and plant, and fixed cover is located at the motor body leading flank; And the center of motor body leading flank protrudes out shape main shaft below, be provided with an internal axle sleeve, make to align and be located at the preceding shaft-cup outer shaft hole of side on the lower side, can provide one piece of back segment to run through outer shaft hole and the mat bearing is finished the location and articulate to be provided with, and front end stretches into and is socketed on the internal axle sleeve, the mat bearing is finished the location and is articulated the driven spindle that is provided with, and the main shaft of shaft-cup inboard be arranged in parallel before formation and latent being located at; Wherein, driven spindle is in the axis body stage casing, fixed cover be equipped with one with the sheathed few flute profile driving gear of motor main shaft tail end institute, can make to cooperate the multiple tooth type driven gear of bridle joint, the inboard reduction gears mechanism of hiding of shaft-cup before being formed on; This driven spindle is able to via the high rotating speed of driving gear, forwards the slow-revving engagement conduction of driven gear to, make driven spindle be able to low and slow rotating speed and turn ventilation fan stage casing fan, the economic benefit of reach high-energy source efficient, using power supply significantly to save.

The formula rotating shaft that directly goes out of above-mentioned this known ventilation fan motor drives structure, it utilizes the driving gear transfer driven gear, but the suffered blast of this ventilation fan is big, when the blast of crosswind was big, tooth was gapped to the transmission meeting of tooth, and can not locate can slippage, make transmission uncertain, and crosswind also can make between engagement and to produce the rake angle malocclusion really or the situation that gets loose, and with identical reduction speed ratio relatively down, the shell of the ventilation fan motor that this is known is just bigger.

Be with, at the existing problem points of above-mentioned conventional construction, how to develop a kind of innovation structure that has more desirable practicability, the ardent hope of real Consumer institute also is that relevant dealer must make great efforts target and the direction that research and development break through.

In view of this, the creator this in manufacturing development and the design experiences of being engaged in Related product for many years, at above-mentioned target, in detail after design and the scrupulous assessment, eventually the utility model of a true tool practicability.

Summary of the invention

The purpose of this utility model is, a kind of motor reducer output shaft rock-steady structure of circulating fan is provided, desire to solve the problems of the technologies described above a little, make transmission more stable and efficient, and can reduce noise and increase the service life, and also be easy to assembling on its structure, establish planetary gear set and also can make that the front axle lid is long-pending significantly to be dwindled.

The technical characterstic of dealing with problems: the utility model provides a kind of motor reducer output shaft rock-steady structure of circulating fan, it is characterized in that, includes:

One motor, this motor are provided with a motor protecgulum and a motor bottom, and a main shaft, this main shaft are worn and passed through this motor and being passed by the motor protecgulum, and the main shaft front end is formed with driving gear;

One train of reduction gears;

Shaft-cup before one, this front axle are covered with a receiving hole that connects, and this preceding shaft-cup substantially horizontal secures to the motor protecgulum of motor, and group is established this train of reduction gears in the receiving hole, is provided with a retaining wall flange in the receiving hole of this preceding shaft-cup; And,

One thrust bearing, this thrust bearing are installed in the receiving hole of a driven shaft section of wearing, and this thrust bearing is that the retaining wall flange of establishing in the receiving hole stops.

Wherein, this train of reduction gears is a planet gear train, the inner circular tooth of this planetary gear set secures to this preceding shaft-cup receiving hole, the profile of tooth of this inner circular tooth is meshing with each other with at least three planet tooth-formation of gear, this at least three planets gear meshes with this driving gear again, and this at least three planets gear is hubbed on this driven shaft.

Wherein, the both sides of this thrust bearing also are provided with two ball bearing supplemental support.

Wherein, be covered with one first class hole, one second class hole and a ring protuberance therebetween before this motor, this main shaft is worn by this first class hole, ring protuberance and the second class hole and is passed through, and to the chase that is provided with in main shaft ring week that should the second class hole, this chase group is established a V-type of following the main shaft rotation and is got rid of sheet, this V-type is got rid of the second class hole of pressing close to the motor protecgulum outer shroud week of sheet, then establishes one between the first class hole and main shaft and prevents that oil plant from infiltrating the oil sealing in the motor.

Wherein, this thrust bearing is a taper roller bearing.

The effect of contrast prior art: when the blast of the crosswind that the ventilation fan motor of prior art bears is big, tooth is gapped to the transmission meeting of tooth, can not locate the meeting slippage, make transmission uncertain, and crosswind also can make between engagement and to produce the rake angle malocclusion really or the situation that gets loose, and circulating fan of the present utility model, its driven shaft must bear for thrust bearing because of circulating fan is subjected to the lateral force of crosswind, shaft-cup receiving hole retaining wall flange block before reaching, make transmission more stable and efficient, and can reduce noise and increase the service life, and also be easy to assembling on its structure.

The technology that relevant the utility model adopted, means and effect thereof after lifting a preferred embodiment now and cooperating graphic being described in more detail in, are believed the above-mentioned purpose of the utility model, structure and feature, when can by one deeply and concrete understanding.

Description of drawings

Fig. 1: one embodiment perspective exploded view of the present utility model.

Fig. 2: one embodiment stereogram of the present utility model.

Fig. 3: one embodiment of the present utility model plane cut-away view.

Embodiment

Consult Fig. 1 to shown in Figure 3, the utility model provides a kind of motor reducer output shaft rock-steady structure of circulating fan, comprising:

One motor 10, this motor 10 are provided with a motor protecgulum 11 and a motor bottom 12, one main shafts 13, and this main shaft 13 is worn and passed through this motor 10 and passed by motor protecgulum 11, and main shaft 13 front ends are formed with driving gear 131;

One train of reduction gears, this train of reduction gears must be planetary gear set 20, this planetary gear set 20 includes at least three planet gears 22 and an inner circular tooth 23 that is pivoted on a driven shaft 21 and the driven shaft 21 bottom disk bodies;

Shaft-cup 30 before one, should be provided with a receiving hole 31 that connects by preceding shaft-cup 30, shaft-cup 30 substantially horizontals secure to the motor protecgulum 11 of motor 10 before being somebody's turn to do, this inner circular tooth 23 must lock in the receiving hole 31, and the profile of tooth of the profile of tooth of this inner circular tooth 23 and three planet gears 22 is meshing with each other, in the receiving hole 31 of this preceding shaft-cup 30 and be provided with a retaining wall flange 311; And,

One thrust bearing 40, the utility model uses taper roller bearing, this thrust bearing 40 is installed in these driven shaft 21 sections of wearing 211 and the receiving hole 31, this thrust bearing 40 also makes it be able to this driven shaft 21 of firm support for the retaining wall flange of establishing in the receiving hole 31 311 stops, the both sides of this thrust bearing 40 also are provided with ball bearing 41,42 supplemental support.

Shaft-cup 30 must be worn for the driven shaft 21 of planetary gear set 20 and pass through out before above-mentioned being somebody's turn to do, these driven shaft 21 sections of wearing 211 must be provided with two groups of ball bearings 41 between preceding shaft-cup 30 receiving holes 31 inner faces, 42 folders are established a thrust bearing 40, this ball bearing 41,42 or this thrust bearing 40 and be preceding shaft-cup 30 receiving holes 31 retaining wall flanges 311 blocks, in view of the above, make driven shaft 21 must bear for thrust bearing 40 because of circulating fan is subjected to the lateral force of crosswind, shaft-cup 30 receiving holes 31 retaining wall flanges 311 blocks before reaching, make transmission more stable and efficient, and can reduce noise and increase the service life, and also be easy to assembling on its structure, establish planetary gear set 20 preceding shaft-cup 30 volumes are significantly dwindled.

Above-mentioned this motor protecgulum 11 is provided with the first class hole 111, the second class hole 112 and ring protuberance 113 therebetween, this main shaft 13 is by this first class hole 111, the ring protuberance 113 and the second class hole 112 are worn and are passed through, the first class hole 111 is equiped with bearing 70, and main shaft 13 rings in the corresponding second class hole 112 are provided with chase 132 week, this chase is established a V-type for 132 groups and is got rid of sheet 50, the outer shroud week that this V-type is got rid of sheet 50 is the second class hole 112 of pressing close to

motor protecgulum

11,13 of the first class hole 111 and main shafts are then established an oil sealing 60, prevent that by this oil sealing 60 oil plant from infiltrating in the motor 10, and this V-type is got rid of sheet 50 and is followed main shaft 13 and rotate, and the oil plant of being stained with can be thrown away V-type by rotary centrifugal force and get rid of sheet 50, the situation that makes oil plant can be seeped into oil sealing 60 reduces, thereby can increase the durability of oil sealing.

Preamble is that technical characteristics of the present utility model carries out specific description at preferred embodiment of the present utility model; Only, the personage who is familiar with this technology is when can changing and revise the utility model not breaking away under spirit of the present utility model and the principle, and these changes and modification all should be covered by in the category that is defined as the application's claim.

Claims

1. the motor reducer output shaft rock-steady structure of a circulating fan is characterized in that, includes:

One train of reduction gears;

2. the motor reducer output shaft rock-steady structure of circulating fan as claimed in claim 1, it is characterized in that, this train of reduction gears is a planet gear train, the inner circular tooth of this planetary gear set secures to this preceding shaft-cup receiving hole, the profile of tooth of this inner circular tooth is meshing with each other with at least three planet tooth-formation of gear, this at least three planets gear meshes with this driving gear again, and this at least three planets gear is hubbed on this driven shaft.

3. the motor reducer output shaft rock-steady structure of circulating fan as claimed in claim 1 is characterized in that, the both sides of this thrust bearing also are provided with two ball bearing supplemental support.

4. the motor reducer output shaft rock-steady structure of circulating fan as claimed in claim 1, it is characterized in that, be covered with one first class hole, one second class hole and a ring protuberance therebetween before this motor, this main shaft is worn by this first class hole, ring protuberance and the second class hole and is passed through, and to the chase that is provided with in main shaft ring week that should the second class hole, this chase group is established a V-type of following the main shaft rotation and is got rid of sheet, this V-type is got rid of the second class hole of pressing close to the motor protecgulum outer shroud week of sheet, then establishes one between the first class hole and main shaft and prevents that oil plant from infiltrating the oil sealing in the motor.

5. the motor reducer output shaft rock-steady structure of circulating fan as claimed in claim 1 is characterized in that, this thrust bearing is a taper roller bearing.