CN2224193Y

CN2224193Y - Harmonic gear-driving lifter

Info

Publication number: CN2224193Y
Application number: CN 94221799
Authority: CN
Inventors: 段宣治; 张庆云; 段丽
Original assignee: 段宣治
Priority date: 1994-09-14
Filing date: 1994-09-14
Publication date: 1996-04-10
Anticipated expiration: 2004-09-14

Abstract

The utility model relates to a harmonic gear-driving lifter which aims to utilize a harmonic gear case driven by the one-time reduction ratio to achieve the purposes of high efficiency, strong bearing capacity, small size and low cost. The utility model has the structure that the harmonic reduction box drive of the motor output drives a reel to rotate; the eccentric sleeve in a motor shaft in the harmonic reduction box is provided with a bearing; a generator plate arranged on the bearing is provided with a flexible gear which is meshed with a fixed output rigidity gear. The utility model has the advantages of small size, light weight, low cost, high bearing capacity, steady elevation low noise, high precision and long service life.

Description

The Harmonic Gears gig

The utility model relates to the gig of industrial middle gear transmission, refers to a kind of Harmonic Gears gig especially.

In background technology, the common gig that uses in that sell on the market and the industry has, 1. electric block, and driving lifting article all adopt electric block, referring to shown in Figure 9, its structure is that 1 transmission of conical roller motor drives reel 9 rotations after gear reduction unit 17 slows down, by steel rope lifting object, for example the 2T electric block that twines, its oad length is 918, diameter phi is 240, and its weak point is that structure is huge, the cost of manufacture height.2. winch pattern gig, its structural principle is substantially with above-mentioned described, referring to Fig. 7 and shown in Figure 8, its gig integral body is fixed type, motor 1 and worm reduction gear 17 are fixed on the bearing 15,1.5KW motor 1 output shaft coupling worm reduction gear 17, drive reels 9 through the deceleration transmission rear output shaft through coupler 16 and rotate, promote coal bunkers by steel rope 13.Weak point still has huge speed reduction gearing, the cost height, and a little less than the load-carrying capacity, efficient is low, and the adapted power of motor is big.

The purpose of this utility model is in order to overcome the weak point in the above-mentioned background technology, a kind of harmonic gear gig is provided, utilize big retarding to replace the deceleration transmission of general gear (or worm gear) than the harmonic gear drive mechanism of transmission, and be combined into one cleverly, the rotor and the stator of motor is assembled in the reel together, formed a fully enclosed electric drum, reach the efficient height, load-carrying capacity is strong, and volume is little, purpose with low cost.

Technical solution of the present utility model is as follows:

Comprise motor 1 output shaft rear end assembling electromagnetic brake device, motor 1 output shaft front end rotates through harmonic reduction case 14 driving band movable reels 9, the steel rope 13 that is wrapped in reel 9 does to promote the decline operation, principal feature is, in harmonic reduction case 14, the output shaft front end assembling eccentric bushing 2 of motor 1, running in bearings 3 on the eccentric bushing 2, assembling producer dish 4 on the bearing 3, the flexbile gear 6 that assembling is out of shape thereupon on the producer dish 4, flexbile gear 6 external tooths of rotation change have just been taken turns 8 with fixing firm wheel 7 and output and have been made engagement fit, and output just wheel 8 is fixed with reel 9.

Technical solution of the present utility model also comprises:

Assembling bending resistance ring 5 between producer dish 4 and the flexbile gear 6.

Just wheel 8 numbers of teeth are identical with output with the radially outer number of teeth of the flexbile gear 6 of producer dish 4 rotation change, few 1～4 tooth of the fixing wheel just of the ratio of number of teeth of flexbile gear 67 numbers of teeth.

Few 2 teeth of the fixing wheel just of the ratio of number of teeth of flexbile gear 67 numbers of teeth.

The rotor of motor 1 and stator are assemblied in the reel, form a fully enclosed electric drum

Description of drawings of the present utility model is as follows:

Fig. 1 is an XB-2T harmonic wave electric block cutaway view.

Fig. 2 is a SM coaling machine harmonic wave gig cutaway view.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is that the outward appearance of Fig. 2 is dwindled view.

Fig. 5 is the left view of Fig. 4.

Fig. 6 is the schematic appearance of Fig. 1.

Fig. 7 is the TQJ coaling machine gig schematic appearance in the background technology.

Fig. 8 is the birds-eye view of Fig. 7.

Fig. 9 is the MD-2T electric block outside drawing in the background technology.

Above-mentioned number in the figure is described as follows:

The 1-motor, 2-eccentric bushing, 3-bearing, 4-producer dish, 5-bending resistance ring, 6-flexbile gear, the fixing wheel just of 7-, 8-output is wheel just, 9-reel, 10-braking brake dish, 11-Advance plate, 12-electromagnetic disc, the 13-steel rope, 14-harmonic reduction case, 15-bearing, 16-coupler, 17-worm reduction gear, 18-support.

Be described in further detail below in conjunction with accompanying drawing:

Referring to Fig. 1, this is an XB-2T harmonic wave electric block, motor 1 is assemblied in the casing, its output shaft rear end assembling electromagnetic brake device, in electromagnetic brake device, electromagnetic disc 12 is subjected to current control, Advance plate 11 is moved vertically fixing braking brake dish 10 is fited brake and disengaging work cooperation, and this electromagnetic brake device belongs to original technology.Motor 1 output shaft front end is by key assembling eccentric bushing 2, eccentric bushing 2 is symmetric double eccentric bushings, two bearings 3 of assembling on the eccentric bushing 2, two producer dishes 4 of assembling on two bearings 3, assembling bending resistance ring 5 on two producer dishes 4, the cylindrical of bending resistance ring 5 forms a complete ellipse thus, assembling flexbile gear 6 on the bending resistance ring 5, also be deformed into ellipse thus, wheel 8 is meshed flexbile gear 6 external diameter teeth with exporting just with fixing wheel 7 just, fixing wheel 7 just is fixed on the support 18, when motor 1 output shaft rotates, producer dish 4 is done rotation in the same way, force the elliptical profile of flexbile gear 6 to change continuously, because fixing 7 few 1～4 tooth of wheel just of flexbile gear 6 outer ratios of number of teeth (this figure is few 2 teeth), therefore motor output shaft turns around, flexbile gear 6 teeth oppositely change 1～4 tooth (diagram is 2 teeth), motor shaft rotates continuously, flexbile gear 6 does oppositely to slow down continuously rotation, export by the identical firm wheel 8 of tooth-type ingear output of doing with flexbile gear 6 numbers of teeth, output just wheel 8 is fixed together with lifting drum 9, so motor rotates continuously, reel 9 does oppositely to slow down rotation, transport workpiece by 13 liftings of the steel rope on the cylindrical shell, as can be seen from Figure 1, the rotor and the stators of assembling motors 1 in the reel 9, form a fully enclosed electric drum, this also is characteristics of the present utility model.

Referring to Fig. 2, basic structure is with shown in Figure 1, because this is the gig that coaling machine is used, so be that bearing 15 is fixed by bolts on ground or the support, the rotor of motor 1 and stator are assemblied in the fixing housing, and assembling harmonic reduction case 14 in the reel 9, equally also form a fully enclosed electric drum.Fig. 3 is a left view, and bearing 15 is supporting whole gig.Referring to Fig. 4 and shown in Figure 5, this is the outside drawing that dwindles, and its length is 360 millimeters, and diameter is 156 millimeters of φ, and the adapted power of motor is 0.55KW.Gig than original usefulness is much smaller.Referring to shown in Figure 6, this is an XB-2T harmonic wave electric block reduced profile view, and its length is 450 millimeters, and diameter phi is 220 millimeters, and the adapted motor is 2.2KW.In like manner its size is much smaller than the electric block of selling on the former market.Referring to Fig. 7 and shown in Figure 8, this is original technology TQJ coaling machine gig, and its structure is that motor 1 output shaft connection worm reduction gear 17, worm reduction gear 17 are exported through coupler 16 and driven reels 9 rotations, thereby make steel rope 13 promote coal bunkers.Its size length * wide=700 * 700 millimeter ², weight 60kg, adapted power of motor 2.5KW, obviously volume is big, Heavy Weight, consumed power is many.Referring to Fig. 9, this is the PMD-2T electric block profile in the background technology, its structure is the both sides of reel 9, and a side is a motor 1, and opposite side is a gear reduction unit 17, it is of a size of long 918 millimeters, 240 millimeters of its diameter phi, the adapted motor is 4KW, obviously longer dimension, bulky, and consumed power.

Advantage of the present utility model and effect are as follows:

1. owing to adopt the harmonic reduction case, wave producer dish 4 has initiatively just been taken turns fixing, gentle The form of wheel output is so deceleration transmission that can a large speed ratio satisfies industrial Need.

2. owing to adopt large speed ratio harmonic reduction case, make whole Structure of hoist simple, Volume is little, and is in light weight, and cost of manufacture reduces greatly.

3. because the harmonic gear engagement is multiple tooth engagement, generally account for 35～40% of total number of teeth, Tooth is again that face contacts with the engagement of tooth, so unit tooth load is little, relative says, carrying Ability is strong.

4. because the between cog relative sliding velocity of harmonic gear is low, its overall efficiency up to 75～80%, and worm gear reducer efficient is 50%, so harmonic gear elevator adapted Power of motor also littler, saved cost.

5. because the harmonic gear tooth is the multiple tooth engagement that contacts with the flank of tooth, so its harmonic wave tooth The wheel transmission has good stationarity, the transmission accuracy height, and the lifting of elevator is steady, makes an uproar Sound is low, and the precision height is specially adapted to require lifting steadily, and the place that the crawl precision is high makes With.

6. because the harmonic gear tooth is multiple tooth engagement, the flank of tooth contacts, flank of tooth sliding speed The advantage such as low, institute is so that tooth is not easy to wear, and the life-span is long, the long service life of complete machine.

Claims

1, the Harmonic Gears gig, comprise motor (1) output shaft rear end assembling electromagnetic brake device, motor (1) output shaft front end rotates through harmonic reduction case (14) driving band movable reel (9), the steel rope (13) that is wrapped on the reel (9) does to promote the decline operation, it is characterized in that: in harmonic reduction case (14), the output shaft front end assembling eccentric bushing (2) of motor (1), eccentric bushing (2) is gone up running in bearings (3), bearing (3) is gone up assembling producer dish (4), producer dish (4) is gone up the assembling flexbile gear (6) of distortion thereupon, engagement fit is made in the flexbile gear of rotation change (6) external tooth and fixing wheel (7) just and output just wheel (8), and output just wheel (8) is fixed with reel (9).

2, Harmonic Gears gig according to claim 1 is characterized in that: assembling bending resistance ring (5) between producer dish (4) and the flexbile gear (6).

3, Harmonic Gears gig according to claim 1, it is characterized in that: the radially outer number of teeth of flexbile gear (5) with producer dish (4) rotation change is identical with the firm wheel of output (8) number of teeth, and the fixing wheel just of the ratio of number of teeth of flexbile gear (6) (7) number of teeth is lacked 1～4 tooth.

4, Harmonic Gears gig according to claim 3 is characterized in that: few 2 teeth of the fixing wheel just of the ratio of number of teeth of flexbile gear (6) (7) number of teeth.

5, Harmonic Gears gig according to claim 1 is characterized in that: the rotor and the stator of motor (1) are assemblied in the reel, form a fully enclosed electric drum.