CN1724764A - Releasing-proof structure of compression spring on coupling - Google Patents
Releasing-proof structure of compression spring on coupling Download PDFInfo
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- CN1724764A CN1724764A CN 200410020050 CN200410020050A CN1724764A CN 1724764 A CN1724764 A CN 1724764A CN 200410020050 CN200410020050 CN 200410020050 CN 200410020050 A CN200410020050 A CN 200410020050A CN 1724764 A CN1724764 A CN 1724764A
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- compression spring
- shaft coupling
- coupling
- gear
- shaft
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Abstract
The invention discloses a deviation-proof structure of compression spring on the coupling that includes coupling and compression spring. The coupling could make the washing machine change the work state between washing mode and dehydrating mode. Synchromesh gear that is located on the flange section and connection gear that is located at the external circle surface of the down side of the flange section is formed on coupling. The compression spring is installed on the top of the coupling and effects to the coupling to make it always moving downward. The feature is diameter of the terminal section of the compression spring is smaller that of the compression spring installation groove on the flange of the coupling. The invention could prevent the spring deviating from the coupling when the washing state turns to dehydrating state. And it is easy to install.
Description
Technical field
The present invention relates to a kind of automatic washing machine, low speed rotation impeller when particularly relating to a kind of washing, high speed rotating rotary drum and dehydration barrel simultaneously during dehydration, and be easy to compression spring on the shaft coupling of power conversion when washing and dehydration prevent to break away from structure.
Background technology
In general, washing machine is that a kind of surface-activity effect of washing agent, current rubbing action and impeller that produces when impeller rotates of utilizing removed the household electrical appliance of various spots on the washings to the percussion of washings.Fig. 1 is the full-automatic pulsator washing machine driving part structure cutaway view of prior art.Fig. 2 a is interior shaft coupling of the insertion drive division of prior art and compression spring set dress state stereogram.Fig. 2 b is the vertical view of Fig. 2 a.Fig. 2 c is the coupling assembling stereogram of prior art.Shown in Fig. 1, Fig. 2 a, Fig. 2 b and Fig. 2 c, the drive division of the automatic washing machine of this prior art comprises wash shaft 20, dehydrating shaft 30, motor 10 and arrangement of clutch.Wash shaft 20 can transmit rotary power by the impeller in washtub; Dehydrating shaft 30 can transmit rotary power to dehydration barrel; Rotor 12 can produce rotation when the stator 11 on the motor 10 was connected power supply; Arrangement of clutch can be according to washing mode or dehydration mode with the power transmission path of motor in wash shaft 20 and 30 conversions of dehydrating shaft, it comprises clutch motor 80, cam 81, control lever guide pipe 85, control lever 84, connecting rod 83, back-moving spring 86, movable piece 87, inserted link 90, buffer spring 91, movable rod 92, shaft coupling limited part 95, steady pin 94, shaft coupling 60 and coupling assembling 70.Clutch motor 80 is arranged on the bottom of outer bucket; Cam 81 links to each other with the driving shaft of clutch motor 80; Control lever guide pipe 85 is fixed on the bearing holder (housing, cover) 50; Control lever 84 can start/carry out when stopping rectilinear motion at clutch motor 80 under the guiding of control lever guide pipe 85; Connecting rod 83 is arranged between the cam 81 and control lever 84 of clutch motor 80, and it can be to the moving control lever 84 of clutch motor 80 1 laybacks when clutch motor 80 starts; One end of back-moving spring 86 is fixed on the front end of control lever guide pipe 85 and the other end is fixed on the fixed lobe of control lever 84 1 ends, to provide restoring force to control lever 84; Movable piece 87 can start the inclined plane decline of back along control lever 84 at clutch motor 80; Inserted link 90 can move up and down along the gathering sill of movable piece 87 inside; Buffer spring 91 is between movable piece 87 and inserted link 90; One end of movable rod 92 is hinged on the bottom of inserted link 90; Shaft coupling limited part 95 is fixed on the bearing holder (housing, cover) 50 and has the gear that along the circumferential direction forms; Steady pin 94 is fixed on the bracing frame 96 of shaft coupling limited part 95, and it has the effect of movable rod 92 pivots when inserted link 90 liftings; Shaft coupling 60 can be according to the axial lifting along dehydrating shaft 30 of the rotation direction of movable rod 92, with the rotary power transfer path of conversion motor 10; When being meshed with shaft coupling 60, coupling assembling 70 revolving force of rotor 12 can be sent to dehydrating shaft 30.Clutch motor 80 is the back-geared motors that transmit power after slowing down by reduction gearing to the driving wheel that is connected cam 81.In addition, an end of connecting rod 83 is combined on the cam 81, and the other end then is hinged on the control lever 84.The cylinder body upper end of shaft coupling 60 has the flange part 63 that radially extends and form.The top edge of flange part 63 is formed with the synchromesh gear 61 that can be meshed with the gear of shaft coupling limited part 95 along its circumferencial direction.Have on the cylinder body inner peripheral surface of shaft coupling 60 for wash shaft 20 outer circumference surfaces on the serration serration 64 that is meshed and forms vertically and have certain-length, and its underpart has anodontia zone.In addition, shaft coupling 60 on the outer circumference surface of its flange part 63 downsides, along the circumferential direction be formed with can be meshed with the gear 74 in the outconnector 71 that constitutes coupling assembling 70 be connected gear 65.At this moment, connect gear 65 and should form the shape that leading section tilts, finish and convert in the dehydration mode process when washing like this, shaft coupling 60 descend and when gear 74 in the outconnector 71 is meshed engagement be easier to.And, also have the compression spring 40 that applies downward pressure all the time to shaft coupling 60 between the upper end of shaft coupling 60 and the lower support bearing 52.Unaccounted symbol 51 is the upper support bearing among the figure.In more detail, the lower end of compression spring 40 is installed in than dehydrating shaft 30 and inserts in the compression spring installation groove 62 of slightly larger in diameter of shaft couplings 60 central parts.In addition, coupling assembling 70 comprises outconnector 71 and female connector 72.Outconnector 71 is made by resin material, and it is combined on the rotor 12 with bolt; The female connector 72 that is positioned at outconnector 71 inside is by the moulding of metal material integral molded plastic, be formed with the serration 73 that can be meshed on its inner peripheral surface, then be formed with the gear 74 that can combine on its upper end outer circumference surface with shaft coupling 60 with the serration of dehydrating shaft 30 lower ends.In addition, be formed with stop 97 on the bracing frame 96.Stop 97 can by and movable rod 92 between mutual interference limit the angle of rotation of movable rod 92, limit the down position of shaft coupling 60 thus.And also having for making movable rod 92 on the bracing frame 96 is that the torque spring 93 that applies revolving force is rotated at the center along clockwise direction with steady pin 94 when clutch motor 80 quits work.The automatic washing machine drive division course of work with as above structure is as follows: at first, clutch motor 80 is not connected power supply before the washing beginning, so it is in off-state.At this moment, movable piece 87 is in the groove that the inclined plane by control lever 84 forms, and shaft coupling 60 then is positioned at minimum point.In this state, when starting with clutch motor 80 connection power supplys and with it, the driving force of clutch motor 80 can send cam 81 by the driving shaft that is attached thereto to.Along with the rotation of cam 81, connecting rod 83 will be to clutch motor 80 1 side shiftings, and control lever 84 then is pulled to clutch motor 80 1 sides under the guiding of control lever guide pipe 85.At this moment, the back-moving spring 86 that is arranged on control lever guide pipe 85 rearward end will be stretched.When control lever 84 is moved to clutch motor 80 1 sides fully, move down under the downward power effect that movable piece 87 can apply on the inclined plane of control lever 84, when control lever 84 mobile ends, movable piece 87 will be positioned at minimum point.In this process, movable piece 87 can compress buffer spring 91, thereby the inserted link 90 that can move up and down in movable piece 87 inside also can descend thereupon.Along with the decline of inserted link 90, the movable rod 92 that is articulated in inserted link 90 lower ends will be that the center rotates in the counterclockwise direction with the steady pin on the bracing frame 96 94.When movable rod 92 is center when rotating in the counterclockwise direction with steady pin 94, that can support that movable rod 92 front ends of shaft coupling 60 flange parts 63 will be along dehydrating shaft 30 axially upwards boosts shaft coupling 60.As a result, the synchromesh gear 61 of shaft coupling 60 upper ends will be meshed with the gear on the shaft coupling limited part 95.And as mentioned above, under shaft coupling 60 and state that shaft coupling limited part 95 is meshed, shaft coupling 60 can be separated from coupling assembling 70, so a wash shaft 20 is rotated during rotor 12 rotations.Promptly in washing process, serration engagement on 64 of serrations on shaft coupling 60 inner peripheral surfaces and wash shaft 20 outer circumference surfaces, and shaft coupling 60 not be engaged on dehydrating shaft 30 on the gear 74 of female connector 72 upper ends be meshed, so the rotary power of rotor 12 only transmits to impeller by wash shaft 20.At this moment, along with the rising of shaft coupling 60, the compression spring 40 of side mounted thereto is compressed at utmost gradually.And when carrying out dehydration after the washing end, clutch motor 80 will reclose power supply, thus rotating cam 81.Along with the rotation of cam 81, control lever 84 will be away from clutch motor 80 under the elastic force effect of back-moving spring 86.So movable piece 87 will rise again along the inclined plane of control lever 84, thus inserted link 90 also can with on move.And along with the rising of inserted link 90, movable rod 92 will be that the center is rotated in a clockwise direction with steady pin 94, so the active force that movable rod 92 front ends act on the shaft coupling 60 will be eliminated.As mentioned above, along with the support force of 92 pairs of shaft couplings 60 of movable rod is eliminated, shaft coupling 60 will move down under the elastic force effect of gravity and compression spring 40, so the synchromesh gear 61 on it will be separated with the gear of shaft coupling limited part 95.And if shaft coupling 60 descends fully, the connection gear 65 on the shaft coupling 60 body outer circumference surfaces will be meshed with the gear 74 of outconnector 71 central parts.At this moment, owing to be meshed with serration on dehydrating shaft 30 outer circumference surfaces all the time,, thereby carry out dehydrating operations so wash shaft 20 and dehydrating shaft 30 will rotate at a high speed when rotor 12 rotates at a high speed with the serration 73 of outconnector 71 integrally formed female connectors 72.In having the prior art drive division of said structure, compression spring 40 is combined on the shaft coupling 60, and its diameter diameter with the compression spring installation groove 62 that forms for installation compression spring 40 usually is identical.When washing, shaft coupling 60 can be close on the shaft coupling limited part 95; And when being converted to dewatering state after washing finishes, compression spring 40 can elongation, the problem that spring 40 spins off in the compression spring installation groove 62 of shaft coupling 60 because of elongation at this moment might occur compressing.And owing to the disengaging of compression spring 40 makes the assembling operation effort that becomes.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of compression spring structure, thereby can prevent that compressing spring spins off from shaft coupling with improvement, but also can make assembling operation easily on the shaft coupling compression spring prevent to break away from structure.
In order to achieve the above object, the compression spring prevents that breaking away from structure comprises shaft coupling and compression spring on the shaft coupling provided by the invention, shaft coupling can make washing machine change between washing mode and dehydration mode, be formed with synchromesh gear on it and be connected gear, synchromesh gear is positioned on the flange part and washing machine is washed; Connect on the outer circumference surface that gear is positioned at the flange part downside and washing machine is dewatered when gear on the outconnector is meshed; The compression spring is installed in the upper end of shaft coupling and acts on shaft coupling, and it is moved down all the time, and it is characterized in that: the terminal part diameter of described compression spring is little than the compression spring installation groove diameter on the shaft coupling flange part.
That compresses spring on the shaft coupling provided by the invention prevents that breaking away from structure can prevent that compressing spring when the washing state is converted to dewatering state is separated from shaft coupling, and is easy to carry out assembling operation.
Description of drawings
Below in conjunction with the drawings and specific embodiments on the shaft coupling provided by the invention the compression spring prevent that breaking away from structure is elaborated.
Fig. 1 is the full-automatic pulsator washing machine driving part structure cutaway view of prior art.
Fig. 2 a is interior shaft coupling of the insertion drive division of prior art and compression spring set dress state stereogram.
Fig. 2 b is the vertical view of Fig. 2 a.
Fig. 2 c is the coupling assembling stereogram of prior art.
Fig. 3 is shaft coupling provided by the invention, compression spring and coupling assembling assembled state stereogram.
Fig. 4 is compression spring provided by the invention and shaft coupling assembled state stereogram.
Fig. 5 is a compression spring plane structure chart provided by the invention.
Accompanying drawing critical piece label:
400: compression spring 600: shaft coupling
610: synchromesh gear 620: compression spring installation groove
630: flange part 640: serration
650: connect gear
The specific embodiment
As Fig. 3, Fig. 4 and shown in Figure 5, the shaft coupling 600 that the compression spring is installed provided by the invention comprises flange part 630, synchromesh gear 610 and connects gear 650.Flange part 630 constitutes the body of shaft coupling 600; Synchromesh gear 610 is formed on the top edge circumference of flange part 630, and it can be meshed with the gear on the not shown shaft coupling limited part; Connect gear 650 and be formed on the outer circumference surface of flange part 630 downsides, it can be meshed with the gear 740 on the outconnector 710.More particularly, the center of flange part 630 is formed with the hole 660 that can axially insert not shown dehydrating shaft.Be formed with the serration 640 that can be meshed on the inner peripheral surface in hole 660, and have the compression spring installation groove 620 that compression spring 400 can be installed at the upper side of flange part 630 with the serration on the dehydrating shaft outer circumference surface.Specify the course of work of compression spring 400, shaft coupling 600 and coupling assembling 700 below.At first, when washing machine is connected power supply, not shown clutch motor will start, thereby shaft coupling 600 is risen, and at this moment, the synchromesh gear 610 on the shaft coupling 600 will be meshed with the gear on the not shown shaft coupling limited part that is positioned at its upside.Shaft coupling 600 with state that the shaft coupling limited part is meshed under will be separated from coupling assembling 700, so the wash shaft rotation during rotor rotation.Promptly, in washing process, serration 640 on shaft coupling 600 inner peripheral surfaces is meshed with serration on the wash shaft outer circumference surface, and not be engaged on dehydrating shaft on the gear 740 of female connector upper end be meshed, so the rotary power of rotor only transmits to impeller by wash shaft.At this moment, along with the rising of shaft coupling 600, the compression spring 400 of side mounted thereto is compressed at utmost gradually.When carrying out dehydration after washing finishes, shaft coupling 600 will move down under the elastic force effect of gravity and compression spring 400, so the synchromesh gear 610 on the shaft coupling 600 will be separated with the gear of shaft coupling limited part.And if shaft coupling 600 descends fully, the connection gear 650 on the shaft coupling 600 body outer circumference surfaces will be meshed with the gear 740 of outconnector 710 central upper portion.At this moment, owing to be engaged on all the time on the serration of dehydrating shaft outer circumference surface,, thereby carry out dehydration so wash shaft and dehydrating shaft rotate high speed when rotor high-speed rotate with serration on the outconnector 710 integrally formed female connector inner peripheral surfaces.In addition, as shown in Figure 5, it is little that the installation position that is installed in the compression spring 400 in the compression spring installation groove on the shaft coupling 600 620 is that the diameter of terminal part compresses the middle part diameter of spring 400.So, when needs are inserted in compression spring 400 in the compression spring installation groove 620, apply certain power for earlier the end of compression spring 400, to open its terminal part, be inserted into then in compression spring installation groove 620, at this moment compress spring 400 and will utilize its convergent force and combine closely on shaft coupling 600.Washing repeatedly and dehydration and when making shaft coupling 600 liftings, compression spring 400 just can not break away from away from shaft coupling 600 like this.In addition, have the scroll structure owing to compress when spring 400 is uprightly placed, its helicoid and horizontal plane have certain angle, so might occur tilting when this spring of compression.In order to prevent this phenomenon, should make its both ends of the surface be parallel to horizontal plane during processing compression spring 400.
Claims (2)
1, on a kind of shaft coupling the compression spring prevent to break away from structure, comprise shaft coupling (600) and compress spring (400); Shaft coupling (600) can make washing machine change between washing mode and dehydration mode, be formed with synchromesh gear (610) on it and be connected gear (650), synchromesh gear (610) is positioned on the flange part (630) and washing machine is washed; Connect on the outer circumference surface that gear (650) is positioned at flange part (630) downside and washing machine is dewatered when gear on the outconnector (710) is meshed; Compression spring (400) is installed in the upper end of shaft coupling (600) and acts on shaft coupling (600), it is moved down all the time, it is characterized in that: the terminal part diameter of described compression spring (400) is little than compression spring installation groove (620) diameter on shaft coupling (600) flange part (630).
2, on the shaft coupling according to claim 1 the compression spring prevent to break away from structure, it is characterized in that: described compression spring (400) is parallel to the scroll structure of horizontal plane for both ends of the surface, and it should be perpendicular to ground when upright placement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410020050 CN1724764A (en) | 2004-07-19 | 2004-07-19 | Releasing-proof structure of compression spring on coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410020050 CN1724764A (en) | 2004-07-19 | 2004-07-19 | Releasing-proof structure of compression spring on coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1724764A true CN1724764A (en) | 2006-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410020050 Pending CN1724764A (en) | 2004-07-19 | 2004-07-19 | Releasing-proof structure of compression spring on coupling |
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|---|---|
| CN (1) | CN1724764A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842375A (en) * | 2018-07-04 | 2018-11-20 | 邢建 | A method of extending roller washing machine service life |
-
2004
- 2004-07-19 CN CN 200410020050 patent/CN1724764A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842375A (en) * | 2018-07-04 | 2018-11-20 | 邢建 | A method of extending roller washing machine service life |
| CN108842375B (en) * | 2018-07-04 | 2020-09-18 | 江苏美森洗涤设备有限公司 | Method for prolonging service life of drum washing machine |
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Open date: 20060125 |