CN2071659U

CN2071659U - Deceleration clutch with sound insulation layer for full automatic washer

Info

Publication number: CN2071659U
Application number: CN 90209467
Authority: CN
Inventors: 李鸿兴
Original assignee: GUANGZHOU STEAM TURBINE PLANT
Current assignee: GUANGZHOU STEAM TURBINE PLANT
Priority date: 1990-06-27
Filing date: 1990-06-27
Publication date: 1991-02-20

Abstract

The utility model relates to a deceleration clutch with a sound insulation layer for full automatic washers. The utility model is characterized in that a decelerator is supported on an outer housing through a sliding bearing with an axial thrust face and a bearing seat; the external diameter of an inner gear ring in the decelerator is fixed with a sound insulation layer; the sliding bearing and an axial thrust washer can be made from self-lubrication multilayer composite materials. The deceleration clutch of the utility model has the advantages of good vibration absorbing performance, low noise, low manufacture cost, convenient maintenance and repair. The utility model can be used on domestic full automatic washers with dual drums.

Description

Deceleration clutch with sound insulation layer for full automatic washer

The utility model relates to the speed-reducing clutch that a kind of family expenses cover cylinder automatic washing machine is used.

At present, commercially available family expenses cover cylinder automatic washing machine has entered huge numbers of families, for people have alleviated requisite housework.The speed-reducing clutch of existing this class washing machine, its decelerator two ends are bearing on the shell by rolling bearing.Frictional resistance is little though rolling bearing has, the efficient advantages of higher, and for the vibrations that reasons such as load off-centre cause, its shock-absorbing performance is just poor, and noise is also big.As adopt high accuracy, low noise rolling bearings, and then cost is too high, and a cover rolling bearing can account for about 20% of whole speed-reducing clutch cost.In addition, general speed-reducing clutch in its decelerator inside, does not have any sound insulation shock absorbing structure, when washing machine washs, and the internal gear running, gear tooth noise is directly propagated out from reducer shell.When laundry machine dehydration, decelerator rotates, though gear pair does not turn round, but it is because gapped between the gear, when particularly adopting Gear Planet Transmission, because the existence in necessary floating compensation gap, make between the gear, easily produce irregular knock between gear and the reducer shell, thereby increased the noise of dehydration running.The environmental pollution that big noise causes brings injurious effects to people's cognition.

The purpose of this utility model, be propose at the existing cover cylinder bigger shortcoming of decelerating clutch for full-automatic washing machine noise a kind of improved, no rolling bearing, and its decelerator inside have sound insulating layer, shock-absorbing performance is good, noise is little family expenses to overlap the cylinder reducing gear clutch for full automatic washing machine.

Task of the present utility model is finished like this, in existing family expenses cover cylinder reducing gear clutch for full automatic washing machine, adopts the sliding bearing with axial thrust face, replaces rolling bearing of the prior art, and the diameter of bore of sliding bearing is not less than 18 millimeters.Sliding bearing is packed in the bearing block, its symmetry is contained in the decelerator two ends that have the thrust friction shaft shoulder again, the thrust friction shaft shoulder on the decelerator is in the axial thrust face junction with sliding bearing, to form axial load friction pair.Decelerator by sliding bearing and bearing block support on shell.In the gear-driven decelerator of planet inside ring gear is arranged, the fixing sound insulating layer made of one deck elastomeric material on the external diameter of ring gear, the sound insulating layer elastic floating compensating action of having held concurrently, and can make ring gear and reducer shell inwall not produce direct bump.Because the rotation time of decelerator only accounts for about 15% of the speed-reducing clutch working time, and is periodic breaks work, radiating condition is better, so sliding bearing can preferentially be selected the self-lubricating multilayer materials for use, with simplified structure.Clutch is connected with decelerator; Braking and controlling organization are contained on the shell.

The utility model can also be finished like this, because it is bigger to have the sliding bearing and the friction of the thrust on the decelerator shaft shoulder difficulty of processing of axial thrust face, so preferably the split from the sliding bearing of axial thrust face is come out, become an independent axial thrust packing ring and a bush(ing) bearing, the diameter of bore of bush(ing) bearing is not less than 18 millimeters; And the axial thrust packing ring is fixed on the bearing block.Too the split from the decelerator of the thrust on the decelerator friction shaft shoulder is come out, become an independent axial thrust back-up ring, and the axial thrust back-up ring is fixed on the thrust friction shaft shoulder place of decelerator.

The utility model has the advantages that and adopt the sliding bearing with axial thrust face, and at the inner sound insulating layer of placing of decelerator, make the speed-reducing clutch shock absorption good, noise is little, and test shows, can reduce noise 5dB(A than common rolling bearing) about; And can reduce cost, use maintenance also convenient.

Below in conjunction with accompanying drawing in detail embodiment is described in detail.

Fig. 1, the speed-reducing clutch master looks part sectioned view.

Fig. 2, tape spool is looked part sectioned view to the speed-reducing clutch master of thrust washer and axial thrust back-up ring.

Fig. 3, Fig. 2 A place amplification profile.

Embodiment 1:

The utility model such as Fig. 1, the sliding bearing (2) of two tape spools to thrust surface arranged, the diameter of bore of sliding bearing (2) is not less than 18 millimeters.Sliding bearing (2) is contained in respectively forms one in the bearing block (3), and symmetry is contained in decelerator (5) two ends that have the thrust friction shaft shoulder again, and the thrust friction shaft shoulder is in that decelerator (5) is gone up and the axial thrust face junction of sliding bearing (2).Decelerator (5) is bearing on the shell (1) by sliding bearing (2) and bearing block (3).On the external diameter of the ring gear (8) in decelerator (5), be fixed with the ring-type sound insulating layer (7) that elastomeric material is made.Sliding bearing (2) is made by the self-lubricating multilayer materials.Braking and controlling organization (6) also are housed on the shell (1); Clutch (4) links together with decelerator (5).

Embodiment 2:

The utility model also can be achieved like this, as Fig. 2, Fig. 3, with the sliding bearing (2) of two tape spools among the embodiment 1 to thrust surface, change into by axial thrust packing ring (9) and bush(ing) bearing (12) and forming, the diameter of bore of bush(ing) bearing is not less than 18 millimeters, axial thrust packing ring (9) and bush(ing) bearing (12) are made by the self-lubricating multilayer materials, and axial thrust packing ring (9) is fixed on the bearing block (3) with fixing pin (11).Axial thrust back-up ring (10) is being fixed with fixing pin (11) by the thrust friction shaft shoulder place of decelerator (5).Other structures are all identical with embodiment 1.

Claims

1, a kind of reducing gear clutch for full automatic washing machine with sound insulating layer, form by shell, clutch, decelerator, braking and controlling organization etc., it is characterized in that having two sliding bearings (2) that have the axial thrust face to be contained in respectively in the bearing block (3), symmetry is contained in decelerator (5) two ends that have the thrust friction shaft shoulder again, and decelerator (5) is bearing on the shell (1) by sliding bearing (2) and bearing block (3); Be fixed with sound insulating layer (7) on the external diameter of the ring gear (8) in decelerator (5).

2, a kind of reducing gear clutch for full automatic washing machine according to claim 1 with sound insulating layer, the sliding bearing (2) that it is characterized in that having the axial thrust face preferably is made of axial thrust packing ring (9) and bush(ing) bearing (12) respectively, and axial thrust packing ring (9) is fixed on the bearing block (3).

3, a kind of reducing gear clutch for full automatic washing machine according to claim 1 with sound insulating layer, the thrust friction shaft shoulder that it is characterized in that having the decelerator (5) of the thrust friction shaft shoulder can be made of two axial thrust back-up rings (10) separately, and axial thrust back-up ring (10) is fixed on the decelerator (5).

4, according to claim 1,2 described a kind of reducing gear clutch for full automatic washing machine, it is characterized in that the diameter of bore of sliding bearing (2) or bush(ing) bearing (12) is not less than 18 millimeters with sound insulating layer.