CN215758102U

CN215758102U - Washing machine belt pulley with detachable center hole

Info

Publication number: CN215758102U
Application number: CN202122103999.0U
Authority: CN
Inventors: 王世名; 华科伟; 吕刚华; 周子江; 余天平
Original assignee: Jiangsu Dongtai Chaofan Innovative New Material Technology Co ltd
Current assignee: Jiangsu Dongtai Chaofan Innovative New Material Technology Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-02-08
Anticipated expiration: 2031-09-01

Abstract

The utility model relates to the technical field of washing machine belt pulleys, in particular to a washing machine belt pulley with a detachable center hole, which comprises a belt pulley outer ring, wherein reinforcing ribs are arranged in the belt pulley outer ring, the reinforcing ribs are provided with a plurality of groups and are distributed in a circumferential manner by taking the center of the belt pulley outer ring as a circle center, the inner ends of the reinforcing ribs are connected with an inner ring, the inner ring and the belt pulley outer ring are coaxial, a telescopic fixing component is arranged in the inner ring, a clamping component is arranged between the telescopic fixing component and the reinforcing ribs for limiting and fixing, a center hole is arranged in the center of the telescopic fixing component, and the center hole and the belt pulley outer ring are coaxial; the beneficial effects are that: change original fixed center shaft hole into detachable center shaft hole through setting up flexible fixed subassembly for when center shaft hole wearing and tearing were serious, directly change center shaft hole, avoided the risk of the easy wearing and tearing inefficacy in belt pulley center shaft hole, improved belt pulley and center shaft hole cooperation department intensity simultaneously and low, yielding defect, simple structure, convenient to use is convenient for change or maintain.

Description

Washing machine belt pulley with detachable center hole

Technical Field

The utility model relates to the technical field of washing machine belt pulleys, in particular to a washing machine belt pulley with a detachable center hole.

Background

The belt pulley belongs to a hub part, generally has a relatively large size, and is mainly cast and forged in the manufacturing process. The design with larger size is designed to be a casting method, the material is generally cast iron (with better casting performance), and the cast steel is rarely used (with poor casting performance); generally, the steel is small in size and can be designed to be forged, and the material is steel. The belt pulley is mainly used in the occasion of transmitting power at a long distance, such as the output of small diesel engine power, agricultural vehicles, tractors, automobiles, mining machinery, machining equipment, textile machinery, packaging machinery, lathes, forging beds, the transmission of power of some small horsepower motorcycles, the transmission of power of agricultural machinery, air compressors, speed reducers, generators, cotton gins and the like.

The belt pulley used by the existing roller washing machine is generally made of die-cast aluminum or steel plate by stamping; but the pure die-casting aluminum or steel plate stamping belt pulley has a plurality of defects; for example, the aluminum belt pulley has high material cost, needs to machine a central shaft hole and an outer circle in the later period, and has the defects of low strength, easy deformation and easy fracture. The cost of the steel plate stamping belt pulley is low, but the central shaft hole is easy to wear and lose efficacy and is influenced by the structure of the belt pulley, the strength of the matching part of the steel plate and the central shaft hole is low, the steel plate and the central shaft hole are easy to deform, and the outer circle of the belt pulley vibrates axially when rotating.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a washing machine belt pulley with a detachable center hole, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a detachable washing machine belt pulley of centre bore, including the belt pulley outer lane, the inside strengthening rib that is provided with of belt pulley outer lane, the strengthening rib is provided with the multiunit, and uses belt pulley outer lane center to be the circumference and distributes as the centre of a circle, strengthening rib inner is connected with the inner circle, and inner circle and belt pulley outer lane are with the axle center, the inside flexible fixed subassembly that is provided with of inner circle, it is spacing fixed to be provided with the block subassembly between flexible fixed subassembly and the strengthening rib, and flexible fixed subassembly center is provided with the centre bore, the centre bore is with the axle center with the belt pulley outer lane.

Preferably, the telescopic fixing assembly comprises a central shell, a driving assembly, a transmission assembly, a limiting telescopic assembly and a sliding assembly, the central shell is arranged inside the inner ring, the inner end of the central shell is connected with the central ring, and the central shell and the central ring are coaxially arranged.

Preferably, the driving assembly comprises an adjusting knob, an adjusting shaft arranged at the bottom end of the adjusting knob and an adjusting gear arranged on the surface of the adjusting shaft, the adjusting knob is arranged on the outer side surface of the central shell, the adjusting gear is sleeved at the bottom end of the adjusting shaft and is located inside the central shell, and the adjusting shaft penetrates through the central shell to be connected with the adjusting gear.

Preferably, transmission assembly includes the internal gear and with internal gear complex external gear, the internal gear setting is inside central casing, and center and the coincidence of central casing axle center, and the external gear sets up inside central casing through the pivot, and is located the internal gear inboard, pivot and external gear all are provided with the multiunit, and pivot and external gear use central casing axle center to be the circumference equipartition as the centre of a circle, external gear and internal gear meshing cooperation.

Preferably, spacing flexible subassembly include the rack, with rack complex spacing groove and stopper, the stopper setting is inside central casing, and is connected central circle and central casing, the spacing groove is seted up on the stopper surface, the adjustment tank has been seted up on the stopper surface and has been cooperated with adjusting gear, rack one end is inside the spacing groove, the other end passes central casing, and rack and pivot meshing cooperation, rack and spacing groove are provided with the multiunit, and use central casing axle center to be the circumference equipartition as the centre of a circle.

Preferably, the sliding assembly comprises a sliding block and a sliding groove matched with the sliding block, the sliding block is arranged at the bottom end of the inner gear, the sliding groove is formed in the inner surface of the central shell, the sliding block and the sliding groove are both of circular ring-shaped structures, and the sliding block and the sliding groove are of 'Contraband' shaped structures in cross section.

Preferably, the block subassembly includes the draw-in groove that spring, spring one end are connected, the card post that the other end is connected, hold groove and fixed slot with card post complex top, the fixed slot is seted up on the strengthening rib surface, the rack passes the inner circle and passes through fixed slot and strengthening rib cooperation, the draw-in groove is seted up on the fixed slot surface, the groove is seted up on the rack surface is held on the top, card post top is round platform column structure, the bottom is cylindric structure, the draw-in groove all is "Contraband" font structure with the groove cross section of holding on the top, and the block subassembly is provided with the multiunit.

Compared with the prior art, the utility model has the beneficial effects that:

according to the belt pulley, the original fixed central shaft hole is changed into the detachable central shaft hole through the telescopic fixing assembly, so that the central shaft hole is directly replaced when the central shaft hole is seriously abraded, the risk that the central shaft hole of the belt pulley is easily abraded and fails is avoided, the defects that the strength of the matching part of the belt pulley and the central shaft hole is low and the belt pulley is easily deformed are overcome, and the belt pulley is simple in structure, convenient to use and convenient to replace or maintain.

Drawings

FIG. 1 is a schematic front view of a belt pulley with a detachable center hole for a washing machine;

FIG. 2 is a top cross-sectional structural view of the telescoping securing assembly;

FIG. 3 is a front cross-sectional structural view of the telescoping securing assembly;

FIG. 4 is a cross-sectional view of the clamping assembly.

In the figure: the belt pulley comprises a belt pulley outer ring 1, a reinforcing rib 2, a rack 3, an inner ring 4, a central hole 5, a central shell 6, an adjusting knob 7, a central ring 8, a rotating shaft 9, an outer gear 10, an inner gear 11, a limiting groove 12, a limiting block 13, an adjusting groove 14, an adjusting shaft 15, an adjusting gear 16, a sliding block 17, a sliding groove 18, a fixing groove 19, a clamping groove 20, a spring 21, a clamping column 22 and a jacking groove 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a detachable washing machine belt pulley of centre bore, including belt pulley outer lane 1, 1 inside strengthening rib 2 that is provided with of belt pulley outer lane, strengthening rib 2 is provided with the multiunit, and use 1 center of belt pulley outer lane to be the circumference distribution as the centre of a circle, 2 the inner of strengthening rib is connected with inner circle 4, and inner circle 4 and belt pulley outer lane 1 are coaxial, the inside fixed subassembly that stretches out and draws back that is provided with of inner circle 4, it is spacing fixed to be provided with the block subassembly between flexible fixed subassembly and the strengthening rib 2, and the fixed subassembly center that stretches out and draws back is provided with centre bore 5, centre bore 5 and 1 coaxial axle center of belt pulley outer lane.

The utility model can be further arranged in a way that the telescopic fixing component comprises a central shell 6, a driving component, a transmission component, a limiting telescopic component and a sliding component, wherein the central shell 6 is arranged inside the inner ring 4, the inner end of the central shell 6 is connected with the central ring 8, and the central shell 6 and the central ring 8 are coaxially arranged; the driving assembly comprises an adjusting knob 7, an adjusting shaft 15 arranged at the bottom end of the adjusting knob 7 and an adjusting gear 16 arranged on the surface of the adjusting shaft 15, the adjusting knob 7 is arranged on the outer side surface of the central shell 6, the adjusting gear 16 is sleeved at the bottom end of the adjusting shaft 15 and is positioned inside the central shell 6, and the adjusting shaft 15 penetrates through the central shell 6 and is connected with the adjusting gear 16; the transmission assembly comprises an inner gear 11 and an outer gear 10 matched with the inner gear 11, the inner gear 11 is arranged inside a central shell 6, the center of the inner gear is coincided with the axis of the central shell 6, the outer gear 10 is arranged inside the central shell 6 through a rotating shaft 9 and is positioned on the inner side of the inner gear 11, the rotating shaft 9 and the outer gear 10 are both provided with a plurality of groups, the rotating shaft 9 and the outer gear 10 are uniformly distributed in a circle by taking the axis of the central shell 6 as the center of a circle, and the outer gear 10 is meshed and matched with the inner gear 11; the limiting telescopic assembly comprises a rack 3, a limiting groove 12 matched with the rack 3 and a limiting block 13, the limiting block 13 is arranged inside the central shell 6 and connects the central ring 8 with the central shell 6, the limiting groove 12 is formed in the surface of the limiting block 13, an adjusting groove 14 is formed in the surface of the limiting block 13 and matched with an adjusting gear 16, one end of the rack 3 is arranged inside the limiting groove 12, the other end of the rack 3 penetrates through the central shell 6, the rack 3 is meshed and matched with the rotating shaft 9, a plurality of groups of racks 3 and the limiting groove 12 are arranged, and the racks 3 and the limiting groove 12 are circumferentially and uniformly distributed by taking the axis of the central shell 6 as the center of circle; the sliding assembly comprises a sliding block 17 and a sliding groove 18 matched with the sliding block 17, the sliding block 17 is arranged at the bottom end of the inner gear 11, the sliding groove 18 is formed in the inner surface of the central shell 6, the sliding block 17 and the sliding groove 18 are both in circular ring structures, and the cross sections of the sliding block 17 and the sliding groove 18 are in Contraband-shaped structures.

The utility model can be further arranged in a way that the clamping assembly comprises a spring 21, a clamping groove 20 connected with one end of the spring 21, a clamping column 22 connected with the other end of the spring, a propping groove 23 matched with the clamping column 22 and a fixing groove 19, wherein the fixing groove 19 is formed in the surface of the reinforcing rib 2, the rack 3 penetrates through the inner ring 4 and is matched with the reinforcing rib 2 through the fixing groove 19, the clamping groove 20 is formed in the surface of the fixing groove 19, the propping groove 23 is formed in the surface of the rack 3, the top end of the clamping column 22 is in a circular truncated cone-shaped structure, the bottom end of the clamping column 22 is in a cylindrical structure, the cross sections of the clamping groove 20 and the propping groove 23 are in Contraband-shaped structures, and a plurality of groups of clamping assemblies are arranged.

The working principle is as follows: when the central hole of the belt pulley needs to be disassembled and replaced, the adjusting knob 7 is held, the adjusting knob 7 is screwed clockwise, so that the adjusting gear 16 is driven to rotate clockwise, the inner gear 11 is driven to rotate clockwise, the outer gear 10 rotates clockwise through the rotating shaft 9, the rack 3 is matched with the outer gear 10, the rack 3 slides inwards through the limiting groove 12, and at the moment, the clamping component cancels the limiting of the rack 3, so that the central hole is disassembled;

when changing new belt pulley centre bore, put into the belt pulley center with the centre bore earlier, twist adjust knob 7 anticlockwise, thereby drive adjusting gear 16 anticlockwise rotation, drive internal gear 11 anticlockwise rotation, thereby make external gear 10 rotate anticlockwise through pivot 9, rack 3 and external gear 10 cooperation, make rack 3 through spacing groove 12 outside slip, rack 3 passes inner circle 4 and fixed slot 19 cooperation this moment, then the block subassembly is spacing to rack 3, spring 21 promotes the outside removal of card post 22 this moment, make card post 22 and the cooperation of holding groove 23 in the top, multiunit block subassembly is accomplished spacing to rack 3 block, accomplish the change.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a detachable washing machine belt pulley of centre bore, includes belt pulley outer lane (1), its characterized in that: the belt pulley outer lane (1) is inside to be provided with strengthening rib (2), strengthening rib (2) are provided with the multiunit, and use belt pulley outer lane (1) center to be the circumference and distribute as the centre of a circle, strengthening rib (2) inner is connected with inner circle (4), and inner circle (4) and belt pulley outer lane (1) are coaxial, the inside fixed subassembly that stretches out and draws back that is provided with of inner circle (4), it is spacing fixed to be provided with the block subassembly between flexible fixed subassembly and strengthening rib (2), and flexible fixed subassembly center is provided with centre bore (5), centre bore (5) and belt pulley outer lane (1) are coaxial.

2. A central hole detachable washing machine pulley according to claim 1, characterized in that: the telescopic fixing assembly comprises a central shell (6), a driving assembly, a transmission assembly, a limiting telescopic assembly and a sliding assembly, wherein the central shell (6) is arranged inside the inner ring (4), the inner end of the central shell (6) is connected with the central ring (8), and the central shell (6) and the central ring (8) are coaxially arranged.

3. A central hole detachable washing machine pulley according to claim 2, characterized in that: the driving assembly comprises an adjusting knob (7), an adjusting shaft (15) arranged at the bottom end of the adjusting knob (7) and an adjusting gear (16) arranged on the surface of the adjusting shaft (15), the adjusting knob (7) is arranged on the outer side surface of the central shell (6), the adjusting gear (16) is sleeved at the bottom end of the adjusting shaft (15) and is located inside the central shell (6), and the adjusting shaft (15) penetrates through the central shell (6) to be connected with the adjusting gear (16).

4. A central hole detachable washing machine pulley according to claim 2, characterized in that: the transmission assembly comprises an inner gear (11) and an outer gear (10) matched with the inner gear (11), the inner gear (11) is arranged inside a central shell (6), the center of the inner gear coincides with the axis of the central shell (6), the outer gear (10) is arranged inside the central shell (6) through a rotating shaft (9), the inner gear (11) is located on the inner side of the inner gear, the rotating shaft (9) and the outer gear (10) are both provided with multiple groups, the rotating shaft (9) and the outer gear (10) are circumferentially and uniformly distributed by taking the axis of the central shell (6) as the center of a circle, and the outer gear (10) is meshed with the inner gear (11).

5. A central hole detachable washing machine pulley according to claim 2, characterized in that: spacing flexible subassembly includes rack (3), with rack (3) complex spacing groove (12) and stopper (13), stopper (13) set up inside central casing (6), and be connected central circle (8) and central casing (6), spacing groove (12) are seted up on stopper (13) surface, adjustment tank (14) and adjusting gear (16) cooperation have been seted up on stopper (13) surface, rack (3) one end is inside spacing groove (12), the other end passes central casing (6), and rack (3) and pivot (9) meshing cooperation, rack (3) and spacing groove (12) are provided with the multiunit, and use central casing (6) axle center to be the circumference equipartition as the centre of a circle.

6. A central hole detachable washing machine pulley according to claim 2, characterized in that: the sliding assembly comprises a sliding block (17) and a sliding groove (18) matched with the sliding block (17), the sliding block (17) is arranged at the bottom end of the internal gear (11), the sliding groove (18) is formed in the inner surface of the central shell (6), the sliding block (17) and the sliding groove (18) are both in circular ring structures, and the cross sections of the sliding block (17) and the sliding groove (18) are in Contraband-shaped structures.

7. A central hole detachable washing machine pulley according to claim 1, characterized in that: the block subassembly includes spring (21), draw-in groove (20) that spring (21) one end is connected, card post (22) that the other end is connected, hold groove (23) and fixed slot (19) with card post (22) complex top, fixed slot (19) are seted up on strengthening rib (2) surface, rack (3) are passed inner circle (4) and are passed through fixed slot (19) and are cooperated with strengthening rib (2), draw-in groove (20) are seted up on fixed slot (19) surface, groove (23) are seted up on top on rack (3) surface, card post (22) top is round platform column structure, the bottom is cylindric structure, draw-in groove (20) all are "Contraband" font structure with groove (23) cross section is held on top, and the block subassembly is provided with the multiunit.