CN103206492A

CN103206492A - Grease-lubrication soft-start planetary differential reducer for bearings

Info

Publication number: CN103206492A
Application number: CN201310154528XA
Authority: CN
Inventors: 张吉林; 丁锁平; 吴声震
Original assignee: JIANGSU TAILAI REDUCER CO Ltd
Current assignee: JIANGSU TAILAI REDUCER CO Ltd
Priority date: 2013-04-28
Filing date: 2013-04-28
Publication date: 2013-07-17

Abstract

The invention relates to a grease-lubrication soft-start planetary differential reducer for bearings. The reducer comprises a box body and an input bevel gear pair, a planetary transmission piece, a speed-up transmission piece and a brake piece which are arranged in the box body. A sealed bearing is used as the supporting structure of a solar wheel axle and a shaft gear in the box body. The structure of the sealed bearing is compact and the requirement on the axial dimensions of the sealed bearing is low, so that the reducer has the advantages of simpleness in the installing structure and convenience in installation and maintenance. The self-seal of the sealed bearing has good dust prevention and sealing effects. In addition, good operative condition can be maintained in the process of the operation of the bearing without the supply of lubricant, so that the maintenance cost is reduced. The reducer is applicable to equipment which has complicated structure, strict requirement on sealing, difficulty in maintenance and oil supply and inconvenience in adoption of an additional sealing device.

Description

Bearing grease lubrication soft start planetary differential speed reducer

Technical field

The present invention relates to the drive technology field, a kind of bearing grease lubrication soft start planetary differential speed reducer.

Background technique

The soft start technology is modern advanced mechanical transmissioning technology, and its advance is to make machinery energy smooth starting under severe duty, thereby is widely used on the large-scale mine machinery, as mine hoist etc.

Point out in " destruction reason and the processing method of mining retarder ": the retarder fault accounts for 40 % in the coal mine equipment fault.Lubricating under relatively poor or the impure condition of lubricant oil, insufficient lubrication increases the weight of the bearing wear degree, and lubricated lipid degenerated gradually after pollutant entered bearing inside simultaneously, produced impression at the rolling surface of contact, further increase the weight of the wearing and tearing of bearing, the generation that has caused the speed reducer fault of bearing.Be in a kind of soft start transmission device of 201020265633.2 and the patent No. is in a kind of soft start speed reducer of 201010279637.0 in the patent No.: filled two groups of awl tooth engagement pair, planetary differential driving component and 18 large and small rolling bearings in the casing, its casing inner bearing lubrication effect difference or unlubricated, degree of wear height, useful life period, is short, speed reducer rate of fault height.

Summary of the invention

Use bearing more at soft start speed reducer in the prior art, and the degree of wear height that exists in the time of can't effectively lubricating, useful life period, is short, the deficiency that the operational failure rate is high, the invention provides a kind of bearing grease lubrication soft start planetary differential speed reducer, its inner bearing and gear seal lubrication are effective, wear-resistant, antipollution, dustproof, long service life, rate of fault are low.

The technical solution used in the present invention is: a kind of bearing grease lubrication soft start planetary differential speed reducer, comprise the input awl tooth pair in casing and the casing, the Gear Planet Transmission part, speedup driving component and brake component, the secondary Gear Planet Transmission part that connects of input awl tooth, brake component connects the Gear Planet Transmission part through the speedup driving component, described input awl tooth pair comprises first conical tooth shaft and first bevel gear, described Gear Planet Transmission part comprises sun wheel shaft, planet wheel, spider gear shaft, planet carrier and ring gear, before described ring gear both sides connect respectively, rear end cover, described speedup driving component comprises the outer Knucle-gear of ring gear, shaftgear, second largest bevel gear and second conical tooth shaft, described second largest bevel gear is bound up on the shaftgear, described brake component is the sticking break of liquid that is bound up on the second conical tooth shaft input end, described first bevel gear is bound up on the sun wheel shaft, and its technical characterstic is:

Described first conical tooth shaft has two the first selfsealings bearings, thrust-bearing and first seal rings of spacer ring to be bearing in the casing endoporus through the centre;

Described second conical tooth shaft has two the second selfsealings bearings, thrust-bearing and seal rings of spacer ring to be bearing in the casing endoporus through the centre;

Described sun wheel shaft is bearing in rear end cover and casing endoporus respectively through third and fourth selfsealings bearing, and described third and fourth selfsealings bearing is positioned at the both sides of first bevel gear;

Described shaftgear one end is supported on the casing endoporus through the 6th selfsealings bearing, thrust-bearing and seal ring, and the other end is supported in the casing through the 7th selfsealings bearing;

Described planet carrier both sides are bearing in respectively in flanged cylinder and the rear end cover through bearing and the 5th selfsealings bearing, and second and third seal ring is established in described bearing both sides, and flanged cylinder is bound up in the casing.

Described first, second, third and fourth, five, six, seven selfsealings bearings are sealing radial ball bearing or seal deep groove ball bearing.

Sun wheel shaft, the shaftgear supporting structure in casing adopts stuffing box bearing among the present invention, and sealed bearing structure compactness, axial dimension require little, have the simplification mounting structure, are convenient to the installation and maintenance advantage; The stuffing box bearing self seal is good dustproof except having, the sealing effect, can also in the bearing operation process, not need the supply oiling agent and keep the good operation state, reduced maintenance expenses, be applicable to complex structure, seal request strictness, safeguard the repairing difficulty, the equipment of additional seal device is adopted in inconvenience.

Supports each input, output and support member by stuffing box bearing in the speed reducer casing of the present invention, utilize stuffing box bearing to carry that bearing grease is lubricated guarantees that bearing operation is reliable, have wear-resistant, antipollution, dustproof, long service life, advantage that rate of fault is low.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention.

Among the figure: casing 1, ring gear 2, front cover 3, the second selfsealings bearing 4, flange cylinder 5, clutch shaft bearing 6, second seal ring, 61, the three seal rings 63, planet carrier 7, sun wheel shaft 8, planet axis 10, the second bearings 10, planet wheel 11, the seven selfsealings bearings 12, shaftgear 13, the second selfsealings bearing 14, liquid glues break 15, the second bevel gear shafts 16, second largest bevel gear 17, the six selfsealings bearings 18, the three thrust-bearings 19, first bevel gear 20, rear end cover 21, the four selfs stuffing box bearings 22, second thrust-bearing 23, lubricating pump 24, the three selfsealings bearings 25, the 8th selfsealings bearing 26, the first bevel gear shafts 27, support flange 28, the first selfsealings bearing 29, first thrust-bearing, 30, the five selfsealings bearings, 31, the first seal rings 32.

Embodiment

The invention will be further described below in conjunction with drawings and Examples.

As shown in Figure 1, a kind of bearing comprises casing 1 with grease lubrication soft start planetary differential speed reducer, ring gear 2, front cover 3, the second selfsealings bearing 4, flange cylinder 5, clutch shaft bearing 6, second seal ring 61, the 3rd seal ring 63, planet carrier 7, sun wheel shaft 8, planet axis 10, second bearing 10, planet wheel 11, the 7th selfsealings bearing 12, shaftgear 13, the second selfsealings bearing 14, liquid glues break 15, second bevel gear shaft 16, second largest bevel gear 17, the 6th selfsealings bearing 18, the 3rd thrust-bearing 19, first bevel gear 20, rear end cover 21, four selfs stuffing box bearing 22, second thrust-bearing 23, lubricating pump 24, the 3rd selfsealings bearing 25, the 8th selfsealings bearing 26, first bevel gear shaft 27, support flange 28, the first selfsealings bearing 29, first thrust-bearing 30, the 5th selfsealings bearing 31 and first seal ring 32.Casing 1 lower end first seal ring 32, first thrust-bearing 30, two first selfsealings bearings 29 connect first bevel gear shaft 27 by support flange 28; Casing 1 upper end connects the sticking break 15 of second bevel gear shaft, 16, the second bevel gear shafts, 16 external liquid through seal ring, thrust-bearing, two second selfsealings bearings 14 by support flange; The horizontal cross-under sun wheel shaft 8 of casing 1 one side inner chambers, one end of sun wheel shaft 8 is through second thrust-bearing 23, four selfs stuffing box bearing 22 is supported on the cabinet exterior and external lubricating pump 24, sun wheel shaft 8 gears engagement planet wheel 11, planet wheel 11 is engaged in the ring gear 2, on the planet wheel 11 through second bearing, 10 cross-under planet axis 9, the two ends of planet axis 9 are connected on the planet carrier 7, planet carrier 7 external output shafts pass the output of casing 1 opposite side, the two ends of planet carrier 7 are by preceding,

rear end cover

3,21 encapsulation, front cover 3 is supported on one through the second selfsealings bearing 4 and is connected on the flange cylinder 5 of casing 1 sidewall, flange cylinder 5 is supported on the planet carrier 7 through clutch shaft bearing 6, the outer end of clutch shaft bearing 6 is provided with and casing 1 sidewall, second seal ring 61 of planet carrier 7 sealings, the inner of second bearing 6 is provided with and flange cylinder 5, the 3rd seal ring 62 of planet carrier 7 sealings, planet carrier 7 is supported on the rear end cover 21 through the 5th selfsealings bearing 31, rear end cover 21 is supported in the casing 1 through the 8th selfsealings bearing 26, sun wheel shaft 8 is through the 3rd selfsealings bearing 25 supporting cross-under rear end covers 21, and cross-under has the first bevel gear 20 that meshes with first bevel gear shaft, 27 awl teeth on the sun wheel shaft 8; Horizontal cross-under shaftgear 13 in the casing 1, one end of shaftgear 13 is supported in the casing 1 through the 3rd thrust-bearing 19, the 6th selfsealings bearing 18, the other end of shaftgear 13 is supported in the casing 1 through the 7th selfsealings bearing 12, shaftgear 13 gears are engaged in outside the ring gear 2, on the shaftgear 13 there are in the second largest bevel gear 17 of second bevel gear shaft, 16 awl tooth engagements cross-under.

Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.

Claims

1. a bearing is with grease lubrication soft start planetary differential speed reducer, comprise the input awl tooth pair in casing (1) and the casing, the Gear Planet Transmission part, speedup driving component and brake component, the secondary Gear Planet Transmission part that connects of input awl tooth, brake component connects the Gear Planet Transmission part through the speedup driving component, described input awl tooth pair comprises first conical tooth shaft (27) and first bevel gear (20), described Gear Planet Transmission part comprises sun wheel shaft (8), planet wheel (11), spider gear shaft (9), planet carrier (7) and ring gear (2), before described ring gear (2) both sides connect respectively, rear end cover (3,21), described speedup driving component comprises the outer Knucle-gear of ring gear (2), shaftgear (13), second largest bevel gear (17) and second conical tooth shaft (16), described second largest bevel gear (17) is bound up on the shaftgear (13), described brake component is the sticking break (15) of the liquid that is bound up on second conical tooth shaft (16) input end, described first bevel gear (20) is bound up on the sun wheel shaft (8), it is characterized in that:

Described first conical tooth shaft (27) has two the first selfsealings bearings (29), thrust-bearing (30) and first seal rings of spacer ring to be bearing in casing (1) endoporus through the centre;

Described second conical tooth shaft (16) has two the second selfsealings bearings (14), thrust-bearing and seal rings of spacer ring to be bearing in casing (1) endoporus through the centre;

Described sun wheel shaft (8) is bearing in rear end cover (21) and casing (1) endoporus respectively through third and fourth selfsealings bearing (25,22), and described third and fourth selfsealings bearing (25,22) is positioned at the both sides of first bevel gear (20);

Described shaftgear (13) one ends are supported on casing (1) endoporus through the 6th selfsealings bearing (18), thrust-bearing and seal ring, and the other end is supported in the casing (1) through the 7th selfsealings bearing (12);

Described planet carrier (7) both sides are bearing in respectively in flanged cylinder (5) and the rear end cover (21) through bearing (6) and the 5th selfsealings bearing (31), second and third seal ring (61 is established in described bearing (6) both sides, 62), flanged cylinder (5) is bound up in the casing (1).

2. bearing according to claim 1 is characterized in that through grease lubrication soft start planetary differential speed reducer: described first, second, third and fourth, five, six, seven selfsealings bearings are sealing radial ball bearing or seal deep groove ball bearing.