CN2673838Y

CN2673838Y - Stepless speed regulator

Info

Publication number: CN2673838Y
Application number: CN 200420034835
Authority: CN
Inventors: 唐明星; 唐振初; 唐青; 梁菊初
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-06
Filing date: 2004-01-06
Publication date: 2005-01-26
Anticipated expiration: 2014-01-06

Abstract

The utility model relates to a stepless speed regulator used for lifting and drawing objects. The central gear shaft 38 of the stepless speed regulator is directly connected with the rotating shaft of an electric motor. When a speed regulating wheel 9 is in the braked state but a braking wheel 32 is loosened, the electric motor drives the central gear shaft 38 to rotate, the rotation of the central gear shaft 38 then drives a planetary gear 23 and a planetary carrier 37 to rotate, and the rotation of the planetary carrier 37 drives a driving gear 28, a driven gear 47 and a driven shaft 45 to rotate; with the acceleration of the braking wheel 32, the rotation speeds of the driven gear 47 and the driven shaft 45 are changed from slow to fast until into the full rotation speed. The speed regulating wheel 9 is loosened and the braked wheel 32 is braked step-by-step, so that the force transmitted from the central gear shaft 38 and the planetary gear 23 to the planetary carrier 37 is decreased step-by-step to make the rotation speeds of the driving gear 28 and the driven gear 47 changed from fast to slow; until the speed regulating wheel 9 is completely loosened and the braking wheel 32 is completely braked, the rotation speeds of the driving gear 28 and the driven gear 47 are decreased to zero. The utility model realizes the stepless speed regulation and has safety and reliability.

Description

Stepless speed adjusting gear

Technical field the utility model relates to a kind of torque transfer that departments such as metallurgy, mining, building and machine manufacture promote, draw other object that is applied to.

The currently used speed governing speed reduction gearing of background technology mainly is the gearshift that adds electrical installation with retarder, change resistance value by gearshift and realize speed change, the setting range of this transmission system is little, energy consumption is big, fault rate is high, maintenance is complicated, limited using and promoting of they.

The summary of the invention the technical problems to be solved in the utility model provides a kind of project organization compactness, applied range, esy to use, safe and reliable, stepless speed adjusting gear that manufacturing cost is lower.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: stepless speed adjusting gear mainly is made up of two parts: active part and passive part, the two that initiatively partly all is installed in the casing inner cage with passive part, initiatively the miniature gears of fly wheel governor, brake wheel and passive part partly is assemblied in the outside of support, other parts are assemblied in the support compactly, use a Bolt Connection tightening of working hard between cover and the support.Fly wheel governor is sleeved on an end of transmission handle, and the end face of transmission handle and fly wheel governor is adorned baffle plate outward.The convex of transmission handle in support partly is equipped with the saturating lid in a left side, and the neck that an adjacent left side is covered thoroughly at the transmission handle is equipped with bearing.One end of center gear teeth axle is installed in the transmission handle, and the central axis of center gear teeth axle and the central axis of transmission handle are coincided.End outer rim at the center gear teeth axle that stretches into the transmission handle is equipped with a plurality of antifriction-bearing boxs, and these antifriction-bearing boxs tightly are enclosed within the inner chamber of transmission handle again simultaneously.Peripheral equipment at the transmission handle is furnished with internally toothed annulus.Pinion carrier is sleeved on the periphery of center gear teeth axle, and planetary wheel evenly is assemblied between center gear teeth axle and the internally toothed annulus inboard, and touches with center shaft tooth axle toe joint.Internally toothed annulus links by clamp and transmission handle.Internally toothed annulus and each planetary wheel toe joint touch transmission each other.Installing and locating cover in planetary wheel, one of little axle is assemblied in the locating bush centre, and the other end is inserted in the pinion carrier.On the little axle in locating bush bearing is housed.Driving gear is assemblied in the waist location of pinion carrier by key, and the adjacent driving gear of antifriction-bearing box is contained in the outer rim of pinion carrier, and the adjacent again bearing installation of left front lid is on pinion carrier.Peripheral be equipped with brake wheel by key on partly what pinion carrier was stretched out support.Part at the close support of center gear teeth axle is equipped with bearing, and little lid screws tight this little lid on pinion carrier by this bearing and with bolt.Brake wheel is assemblied on the pinion carrier by key.Driven axle is the other end that stepped appearance is contained in support, an edge that is assemblied in support of driven axle, and its outer rim is equipped with thrust baring, is equipped with regulating plate, left end cap and regulating block successively on the top of this thrust baring.Waist location at driven axle is equipped with ring gear by key, this ring gear is meshed with the tooth of driving gear on being assemblied in pinion carrier, the peripheral diameter of ring gear and driving gear is unequal simultaneously, can be according to the diameter ratio of the recently definite driving gear of speed governing with ring gear.The other end of driven axle is installed in another edge of support, assembles thrust baring and right back lid simultaneously at this end of driven axle.Right back lid can install outside framework oil seal additional with the space that links to each other of driven axle, and the termination of stretching out the driven axle of support adds miniature gears, with bolt gland is closely linked to each other with driven axle.

The stepless speed adjusting gear that adopts technical scheme like this to make, its characteristics are:

1. compact conformation, fault is few, operations and maintenance is convenient, reduces labour intensity, he raises labour productivity;

2. the speed adjustable range that has broad is realized from zero to adjusting at full speed;

3. start steadily, performance is good fully, practicable emergency brake, assurance equipment and personal safety;

4. but through-coupling reduces energy resource consumption.

5. braking and speed governing can be in this governor execution synchronously itself, need not to produce on the power system of structure in the past and the passive system.

Description of drawings

Fig. 1 is the forward surface structure scheme drawing of stepless speed adjusting gear described in the utility model.

Fig. 2 be the A-A of Fig. 1 to the structure cross-sectional schematic, also be specification digest accompanying drawing of the present utility model.

The specific embodiment is described in further detail the specific embodiment of the present utility model below in conjunction with accompanying drawing.

As shown in drawings, 1 is cover, and 2 is support, and 3 or 4 is bolt, 5 is inspection hole cover, and 7 is baffle plate, and 9 is fly wheel governor, and 11 is the saturating lid in a left side, 12 or 13 or 20 or 13 ' be bearing, 14 are the transmission handle, 18 is clamp, 19 is nest, and 22 is locating bush, and 23 is planetary wheel, 24 is internally toothed annulus, and 27 is little axle, and 28 is driving gear, 29 is bearing, and 30 is left front lid, and 32 is brake wheel, 35 is little lid, and 37 is pinion carrier, and 38 is sun gear shaft, 41 or 51 is bearing, and 42 is right back lid, and 44 is miniature gears, 45 is driven axle, and 46 is gland, and 47 is ring gear, 48 is regulating block, and 49 is left end cap, and 50 is regulating plate.Cover 1 screws tight with support 2

usefulness bolts

3 or 4, and inspection hole cover 5 adds the upper end that is installed in cover 1 after paper covers, and adds the flat shim tightening with bolt.One of the transmission handle 14 of convex is stretched out support 2, and fly wheel governor 9 is sleeved on an end of transmission handle 14 through key 8, in the termination of transmission handle 14 and fly wheel governor 9 joints baffle plate 7 is arranged, and with bolt baffle plate 7 is fixed on the transmission handle 14; Simultaneously because of matching by key 8 between fly wheel governor 9 and the transmission handle 14, so the rotation of fly wheel governor 9 can drive 14 rotations of transmission handle.Accommodation zone also is housed on the peripheral week of fly wheel governor 9 in addition, and this kind accommodation zone can be used manually or hydrostatic drive, and this accommodation zone can be regulated the size that is added to the power on the fly wheel governor 9, i.e. the rotating speed of scalable fly wheel governor 9.Be equipped with the saturating lid 11 in a left side on the transmission handle 14 in support 2, the outside framework oil seal of anti-oil leakage is installed between saturating lid 11 in a left side and transmission handle 14 simultaneously.The saturating lid 11 in bearing 12 adjacent left sides is assemblied on the transmission handle 14, and bearing 12 can be antifriction-bearing box, in transmission handle 14 lower end outer rims clamp 18 is housed, and uses the bolt tightening between clamp 18 and the internally toothed annulus 24.An end that is the center gear teeth axle 38 of stairstepping is contained in the transmission handle 14, is equipped with one group of bearing 13 simultaneously between center gear teeth axle 38 these ends and transmission handle 14, and bearing 13 can be antifriction-bearing box.Pinion carrier 37 is assemblied in the periphery of center gear teeth axle 38.Near between one of the pinion carrier 37 of transmission handle 14 and the center gear teeth axle 38 antifriction-bearing box 13 also is being housed.Internally toothed annulus 24 is assemblied in the outer rim of transmission handle 14, between the inboard of internally toothed annulus 24 and center gear teeth axle 38, evenly be equipped with N (N＞1) planetary wheel 23, make planetary wheel 23 and center gear teeth axle 38 be toe joint simultaneously, planetary wheel 23 also is a toe joint with internally toothed annulus 24.Be equipped with a little axle 27 in the centre of each planetary wheel 23, little axle 27 is inserted on the pinion carrier 37, with holding screw they is tightened up between little axle 27 and pinion carrier 37, in order to avoid little axle 27 is jumped out.Bearing 20 in locating bush 22 is tightly packed on the little axle 27, and driving gear 28 is installed on the waist location of pinion carrier 37 by key 39.Bearing 29 adjacent driving gears 28 are installed in the outer path position of pinion carrier 37, and left front lid 30 adjacent bearings 29 also are assemblied on the outer path position on the pinion carrier 37.At the not end of the pinion carrier 37 of stretching out support 2 by key 8 ' be equipped with brake wheel 32.Center gear teeth axle 38 near be equipped with between the edge part of supports 2 and the pinion carrier 37 bearing 13 ', little lid 35 be sleeved on the center gear teeth axle 38 also adjacent bearing 13 ', with bolt little lid 35 is screwed tight on pinion carrier 37 simultaneously.On brake wheel 32, also can adorn brake collar in addition, drive brake collar by manual or hydrostatic drive and can make brake wheel 32 rotations, the big I of the brake collar application of force be changed the rotating speed of brake wheel 32.The not end that is positioned at the center gear teeth axle 38 of brake wheel 32 has key 40, and its effect is can drive center gear teeth axle 38 herein when being connected with electrical motor to rotate.The driven axle 45 that is stairstepping is contained in the other end in the support 2, and one of driven axle 45 is equipped with bearing 51, and bearing 51 can be thrust baring, is equipped with regulating plate 50, left end cap 49 and regulating block 48 successively on the top of bearing 51.Regulating block 48 is rotatable, so that regulate the tightness of regulating plate 50.By key 39 ring gear 47 is sleeved on the waist location of driven axle 45.The marginal tooth of ring gear 47 is meshed with the marginal tooth of driving gear 28 on being assemblied in pinion carrier 37, simultaneously for realizing the purpose of the described infinite speed variation of this case, the external diameter of ring gear 47 is greater than the external diameter of driving gear 28, and its diameter ratio can recently be determined according to speed governing.The other end of driven axle 45 and support 2 side edge places install bearing 41 (for promoting bearing) and right back lid 42 successively, for guaranteeing its sealing, have installed outside framework oil seal additional between right back lid 42 and driven axle 45 simultaneously.Miniature gears 44 is assemblied in the not end of driven axle 45, gland 46 is near the installation of miniature gears 44 and driven axle 45, with bolt gland 46 is abutted against on the driven axle 45 simultaneously, the outer rim of miniature gears 44 can add into odontoid or be processed into the key shape, so that link to each other, load end is moved with the design-calculated rotating speed with load end.

During operation, an end that center gear teeth axle 38 is had key 40 is connected with external shaft of motor, and the rotation of electrical motor ceaselessly drives center gear teeth axle 38 and rotates.At first by craft or hydraulic transmission mode fly wheel governor 9 is braked, even fly wheel governor 9 is in motionless state, this moment, transmission handle 14 and internally toothed annulus 24 also were in motionless state.And progressively the brake collar on the brake wheel 32 is started, make brake wheel 32 progressively loosening, promptly slowly to rotate, while pinion carrier 37 is also followed brake wheel 32 and is slowly rotated.Because of motor drives center gear teeth axle 38 rotates, the rotation of center gear teeth axle 38 only drives planetary wheel 23 and rotates, because the little axle 27 in the planetary wheel 23 is inserted in the pinion carrier 37, so the rotation of planetary wheel 23 drives pinion carrier 37 and rotates, pinion carrier 37 and driving gear 28 are through key 39 bridle joint mutually, so the rotation of pinion carrier 37 must drive driving gear 28 and rotate, the rotation of driving gear 28 drives ring gear 47 and rotates, the rotation of ring gear 47 drives driven axle 45 and follows rotation, the load of ining succession of miniature gears 44 on the driven axle 45 drives load and promotes or descend or draw certain weight.The rotation of brake wheel 32 is accelerated, pass to the energy of center gear teeth axle 38 ascending all pass to planetary wheel 23 and pinion carrier 37, driving gear 28 and ring gear 47, driven axle 45 by electrical motor this moment, the rotating speed of driven axle 45 is changed from small to big, promptly be modulated to maximum speed, the running velocity that is raised or draws thing is for maximum; Slow down the running velocity that promotes or draw if desired, promptly need to reduce the velocity of rotation of driven axle 45, then can progressively become flexible fly wheel governor 9, make the brake collar operation that is loaded on the fly wheel governor 9 by manual or hydraulicdriven mode, driving fly wheel governor 9 rotates from slow to fast, the rotation of fly wheel governor 9 drives transmission handle 14 and rotates, the rotation of transmission handle 14 drives internally toothed annulus 24 and rotates, electrical motor ceaselessly drives and makes planetary wheel 23 rotations also drive internally toothed annulus 24 rotations after center gear teeth axle 38 rotates simultaneously, the power of passing to pinion carrier 37 by planetary wheel 23 is progressively diminished, make pinion carrier 37 and driving gear 28, the rotating speed of ring gear 47 and driven axle 45 progressively diminishes, when the rotating speed that reaches fly wheel governor 9 is maximum, be that fly wheel governor 9 is in when putting state entirely, the power of being passed to planetary wheel 23 and being passed to pinion carrier 37 by center gear teeth axle 38 progressively is zero, this moment, driving gear 28 and ring gear 47 progressively rotated from fast to slow up to stopping operating, and had realized the descending purpose of rotating speed of driven axle 45.Again because of the practicable infinite speed variation of the rotating speed of fly wheel governor 9, so the rotating speed of driving gear 28 and ring gear 47 also can be realized infinite speed variation.When running into urgent unexpected state, need carry out emergency brake, can promptly stop by brake wheel 32 and stop, promptly allow brake wheel 32 be in the situation that stops fully, remaining in operation of electrical motor rotated center gear teeth axle 38 at this moment, drive planetary wheel 23, internally toothed annulus 24, transmission handle 14 and fly wheel governor 9 again and be in rotary state at full speed, promptly the energy of being given by electrical motor is all discharged by fly wheel governor 9, the rotating speed that makes driving gear 28, ring gear 47 and driven axle 45 is zero, stop to promote or traction, avoid safety misadventure to take place.

Claims

1, a kind of stepless speed adjusting gear, cover (1) screws tight with spiral shell inspection (3) or (4) with support (2), inspection hole cover (5) is installed in the upper end of cover (1), it is characterized in that: fly wheel governor (9) is sleeved on an end of transmission handle (14) through key (8), and baffle plate (7) is fixed on the transmission handle (14); Be equipped with the saturating lid in a left side (11) on the transmission handle (14) in support (2), the adjacent left side of bearing (12) is covered (11) thoroughly and is assemblied on the transmission handle (14), and clamp (18) is installed in transmission handle (14) lower end outer rim; One end of center gear teeth axle (38) is contained in the transmission handle (14), be equipped with one group of bearing (13) between center gear teeth axle (38) and the transmission handle (14), internally toothed annulus (24) is assemblied in the outer rim of transmission handle (14), between the inboard of internally toothed annulus (24) and center gear teeth axle (38), be equipped with planetary wheel (23), little axle (27) is housed in the centre of planetary wheel (23), one of little axle (27) is inserted in the pinion carrier (37), and the bearing (20) in locating bush (22) is contained on the little axle (27); Pinion carrier (37) is assemblied in the periphery of center gear teeth axle (38); Driving gear (28) is installed on the pinion carrier (37), and the adjacent driving gear of bearing (29) (28) is contained in the outer path position of pinion carrier (37), and left front lid (30) suffers on the outer path position that bearing (29) is contained in pinion carrier (37); The not end of pinion carrier (37) is equipped with brake wheel (32); Bearing (13 ') is assemblied between pinion carrier (37) and the center gear teeth axle (38), and little lid (35) suffers bearing (13 ') and is sleeved on that center gear teeth axle (38) is gone up and tightens up with pinion carrier (37); One of driven axle (45) is equipped with bearing (51), and regulating plate (50), left end cap (49) and regulating block (48) are housed successively on the top of bearing (51); Ring gear (47) is sleeved on the driven axle (45), and the marginal tooth of ring gear (47) is meshed with the marginal tooth of driving gear (28); The other end of driven axle (45) is equipped with bearing (41), right back lid (42), and miniature gears (44) is assemblied in the not end of driven axle (45), and gland (46) is installed near miniature gears (44) and driven axle (45).

2, stepless speed adjusting gear according to claim 1 is characterized in that: the external diameter of ring gear (47) is greater than the external diameter of driving gear (28).