CN201449918U

CN201449918U - Switch mechanism of shredder

Info

Publication number: CN201449918U
Application number: CN2009200359593U
Authority: CN
Inventors: 桑树华; 刘金波; 柳晓宇
Original assignee: Suzhou Cleva Electric Appliance Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2009-03-05
Filing date: 2009-03-05
Publication date: 2010-05-05
Anticipated expiration: 2019-03-05

Abstract

The utility model relates to a switch mechanism of a shredder, which mainly comprises a knob (2), a stopper (4) arranged on a panel (3) and a switch box component (5). The knob (2) comprises a knob body (8) and a stopped part (22), wherein the stopped part (22) can slide on the knob body (8) and is provided with a first position (19) and a second position (20). A positive rotation gear (16), a reverse rotation gear (17) and a stopping gear (18) are oppositely arranged between the knob (2) and the panel (3); when the knob (2) is shifted between the positive rotation gear (16) and the reverse rotation gear (17), the stopped part (22) is required to move between the first position (19) and the second position (20), therefore, the buffering time of positive rotation and reverse rotation is provided for a motor, thus protecting the motor. Simultaneously the knob (2) performs positive rotation and reverse rotation and triggers a first button (141) and a second button (142) of an electromagnetic switch (14) in the switch box component (5) and a third button (131) of a rocker switch (13) through a trigger component (23) arranged in the switch box component (5), therefore, the trigger mechanisms of the buttons are simplified, and the cost is saved.

Description

A kind of switching mechanism of chipper

Affiliated technical field

The utility model relates to a kind of switching mechanism of chipper.

Background technology

Chipper comprises motor, transmission mechanism, cutter hub, charging aperture and switching mechanism.When machine works, the user puts into charging aperture with branch, by cutterhead with its broken cutting, in some cases, because branch is more sturdy, the phenomenon of stall just might take place in motor, just needs this moment console switch mechanism to make the motor counter-rotating, thereby branch is withdrawed from charging aperture, so that proceed broken cutting.In the chipper of selling on existing market, mostly be greatly and adopt induction machine, if therefore the moment counter-rotating can't cause damage to motor, but the cost of induction machine is higher, and institute takes up space bigger; And for the chipper that adopts series excited machine; because the characteristic of motor; might cause motor to damage as motor from just changeing state moment counter-rotating; generally be to protect motor in the existing chipper by increasing circuit board; can effectively realize the rotating of motor again; but so just increased cost, reduced the market competitiveness.Meanwhile, at the existing switching mechanism that is used on the chipper, it generally includes electromagnetic switch and rocker switch, and connect with circuit between the motor and trigger and discharge the different operating state that buttons different on it is controlled motor by electromagnetic switch and rocker switch, yet, it triggers the structure more complicated, comprises the part that triggers part and a plurality of middle connection and transition, has increased cost virtually.

Summary of the invention

For the deficiency of the switching mechanism that overcomes existing chipper, the utility model provides a kind of switching mechanism of novel chipper, and it can effectively prolong the time of rotating conversion, thus the protection motor.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of switching mechanism of chipper, described switching mechanism comprises panel and the rotatable knob that is installed on the described panel, described knob is provided with respect to described panel just changes retaining, lock catch and three gears of anti-converting, described knob comprises the knob main body, it is characterized in that: described panel is provided with locating part, and described knob also comprises limited that is coupled to movably on the described knob main body; Have the primary importance and the second place between described limited and the described knob main body; When described knob is in lock catch, described limited can be moved between the primary importance and the second place, described limited when being in primary importance, described knob can rotate described just the commentaries on classics between shelves and the described lock catch, described limited when being in the second place, described knob can rotate between described anti-converting and described lock catch.

The beneficial effects of the utility model be by be provided with on the panel limited and and knob between position relation; thereby make the operator that knob is adjusted to the process of anti-converting from just changeing shelves; through lock catch the time, need be pushed into the second place from primary importance with limited; so just, prolonged the required time of rotating conversion; provide motor from just going to the required safety time of counter-rotating, effectively protected motor.

For the deficiency of the switching mechanism that overcomes existing chipper, the utility model provides a kind of switching mechanism of novel chipper, and it can effectively realize triggering function, and simple in structure.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of switching mechanism of chipper, it comprises switch enclosure assembly and knob, described knob is provided with respect to described switch enclosure assembly just changes retaining, three gears of lock catch and anti-converting. described switch enclosure assembly comprises electromagnetic switch, rocker switch and triggering assembly, described electromagnetic switch has first button and second button, described rocker switch has the 3rd button. and described triggering assembly comprises connector and pushing block, when described knob is in lock catch, described connector triggers described second button, and discharges described first button and the 3rd button; When described knob was in described just changeing grade, described connector drives described pushing block made described pushing block trigger described first button, and discharges described second button; When described knob was in anti-converting, described connector triggered described the 3rd button, and discharged described second button, and described the 3rd button promotes described pushing block makes described pushing block trigger described first button.

The beneficial effects of the utility model are by in the triggering structure of electromagnetic switch and rocker switch some connectors and transition piece being reduced to a pushing block, make the winner trigger part when triggering rocker switch, can trigger electromagnetic switch by the seesaw on the rocker switch, simplify the structure, reduced cost.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the schematic perspective view of chipper in the present embodiment.

Fig. 2 is the decomposing schematic representation of the switching mechanism of chipper among Fig. 1.

Fig. 3 is the schematic diagram of switching mechanism among Fig. 2.

Fig. 4 is the explosive view of switching mechanism among Fig. 3.

Fig. 5 is the decomposing schematic representation of the knob of switching mechanism among Fig. 2.

Fig. 6 is that the knob among Fig. 2 is in lock catch, the vertical view when push button is in primary importance.

Fig. 7 is that the knob among Fig. 2 is in and just changes shelves, the vertical view when push button is in primary importance.

Fig. 8 is that the knob among Fig. 2 is in lock catch, the vertical view when push button is in the second place.

Fig. 9 is that the knob among Fig. 2 is in anti-converting, the vertical view when push button is in the second place.

Figure 10 is the cutaway view of the A-A direction among Fig. 6.

Figure 11 is the cutaway view of the B-B direction of Fig. 8.

Figure 12 is the interior vertical view of switch enclosure assembly among Fig. 6.

Figure 13 is the interior vertical view of switch enclosure assembly among Fig. 7.

Figure 14 is the interior vertical view of switch enclosure assembly among Fig. 9.

22. limited 23. of 1. switching mechanisms, 2. knobs, 3. panels, 31. through holes, 4. locating parts, 5. switch enclosure assemblies, 6. switch enclosure loam cakes, 7. power supply connecting portions, 8. knob main bodys, 81. dividing plates, 82. chutes, 83. first stopper slots, 84. connecting holes, 85. push button connecting holes, 86. second stopper slots, 9. push buttons, 91. buckles, 92. locating dowels, 10. slide blocks, 101. block button holes, 102. locating holes, 11. connectors, 111. cam bits, 112. feelers, 12. pushing blocks, 121. accepting grooves, 122. ejection parts, 123. guide pads, 124. arc feelers, 13. rocker switch 131. the 3rd button, 132. trigger ends, 133. Self-resetting ends, 14. electromagnetic switch, 141. first buttons, 142. second buttons, 15. switch enclosure lower covers, 151. gathering sills, 16. forward shelves, 17. anti-convertings, 18. lock catch, 19. primary importances, 20. second places, 21. overcurrent protectors trigger assembly among the figure

Embodiment

Referring to figs. 1 to Fig. 5, shown in the figure for the chipper of the pairing embodiment of the utility model with and switching mechanism. it mainly includes drive motors, cutterhead, and switching mechanism 1. switching mechanisms 1 of controlling above-mentioned drive motors comprise knob 2, switch enclosure assembly 5 and be arranged on locating part 4 on the panel 3, this locating part 4 is for projecting upwards the convex of extension from described panel 3. knob 2 and switch enclosure assembly 5 lay respectively at panel 3 about, and the inside that locating part 4 can be contained knob 2. the connector 11 that is arranged on switch enclosure inside stretches out the through hole 31 that is positioned on the panel 3 and cooperates with connecting hole 84 on being arranged on knob 2, thereby knob 2 is connected with switch enclosure assembly 5, so the rotation of the rotation of this knob 2 and connector 11 is synchronous; The rotation of switching mechanism 1 by knob 2 trigger with release-push case assembly 5 in electromagnetic switch 14 and the different buttons of rocker switch 13 reaching the control motor circuit, thereby realize the rotating of motor.

With reference to figure 4 to Fig. 5, wherein knob 2 by knob main body 8, form for limited 22, described limited 22 comprises push button 9 and slide block 10.Knob main body 8 inside are provided with chute 82, and limited 22 can be slipped into this chute 82 fully, are provided with dividing plate 81 in the middle of the described chute 82, and push button 9 and slide block 10 lay respectively at the both sides of dividing plate 81.Dividing plate 81 is provided with push button connecting hole 85, and it can accommodate above-mentioned push button 9, and push button 9 can slide in this push button groove; Have a pair of block button hole 101 and a location hole 102 on the above-mentioned slide block 10.A pair of buckle 91 on the push button 9 passes above-mentioned push button connecting hole 85 and block button hole 102 buckle mutually, at this location hole 102 that reference column between buckle 91 92 inserts on the slide blocks 10 has been arrived location and purpose of connecting simultaneously.

In conjunction with foregoing and with reference to figure 6 to Figure 11, be depicted as each control position schematic diagram of the switching mechanism 1 of embodiment of the present utility model.Relative rotation between above-mentioned knob 2 and the panel is formed with three different control positions, and being respectively just changes shelves 16, anti-converting 17 and lock catch 18.Limited 22 on knob main body 8 slide relative also formed two relative positions, i.e. the primary importance 19 and the second place 20.The two ends of above-mentioned knob main body 8 also are provided with first stopper slot 83 and second stopper slot 86, and it is mainly used in accommodates above-mentioned locating part 4.

Further with reference to Figure 10 and Figure 11, when push button 9 slides, because the cooperation of reference column 92 and location hole 102 makes slide block 10 also slide with respect to knob main body 8 together.When push button 9 slid into above-mentioned primary importance, because the slip of slide block 10, it sealed first stopper slot 83 on the knob main body 8, thereby makes this first stopper slot 83 can not accommodate above-mentioned locating part 4; Second stopper slot 86 that is positioned at these first stopper slot, 83 rears simultaneously is not closed, and it can accommodate this locating part 4; Therefore this knob main body 8 can only be towards the direction knob that can accommodate locating part 4, and promptly rotating to is just changeing shelves 16, as shown in Figure 7.Accordingly, as shown in figure 11, when push button 9 when the second place 20 is slided, what slide block 10 was also corresponding slides to second stopper slot 86, these second stopper slot, 86 sealings the most at last, meanwhile, above-mentioned first stopper slot 83 will be opened wide to accommodate locating part 4.Knob main body 8 also can only promptly rotate to anti-converting 17 towards the direction rotation that can accommodate locating part 4 at this moment.

Just change shelves 16 the time when knob main body 8 to just changeing shelves 16 rotations or being in, because second stopper slot 86 is being accommodated above-mentioned locating part 4, therefore limited 22 can not be slided to these second stopper slot, 86 places (being the second place).When knob main body 8 to anti-converting 17 rotation or when being in anti-converting 17, first stopper slot 83 is being accommodated locating part 4, so limited 22 can not be slided to first stopper slot, 83 places (being primary importance 19).Therefore have only when knob main body 8 is in lock catch 18, above-mentioned limited 22 could be free to slide between the primary importance 19 and the second place 20.

Referring to figs 12 to 14, when shown in the figure being the different control position of described switching mechanism 1, the schematic diagram that electromagnetic switch 14 in the switch enclosure assembly 5 and rocker switch 13 are triggered and discharge. above-mentioned switch enclosure assembly 5 mainly includes switch enclosure loam cake 6, switch enclosure lower cover 15, electromagnetic switch 14, rocker switch 13, trigger assembly 23, and overcurrent protector 21, electromagnetic switch 14 is provided with first button 141 and second button 142, rocker switch 13 is provided with the 3rd button 131, the 3rd button 131 is a seesaw that resets certainly, the one end is that the trigger end 132 and the other end comprise connector 11 for triggering assembly 23 from reset terminal 133., pushing block 12. above-mentioned connectors 11 are provided with cam bit 111 and feeler 112, cam bit 111 can trigger or discharge second button 142 of electromagnetic switch 14, feeler 112 can contact with the 3rd button 131 and the pushing block 12 of rocker switch 13. and pushing block 12 is installed between electromagnetic switch 14 and the rocker switch 13, and its upper and lower surface all is provided with guide pad 123, it cooperatively interacts with the gathering sill 151 that is arranged on the switch enclosure, thereby can between electromagnetic switch 14 and rocker switch 13, slide mutually. also be provided with accepting groove 121 on the pushing block 12, ejection part 122 and arc feeler 124, this accepting groove 121 can be accommodated the feeler 112 of above-mentioned connector 11, and feeler 112 is along with the rotation of connector 11 can be slided in above-mentioned accepting groove 121; Ejection part 122 can be in contact with one another with first button 141 of electromagnetic switch 14, arc feeler 124 can with being in contact with one another of the 3rd button 131 from reset terminal 133. when knob main body 8 is positioned at lock catch, corresponding to Figure 12, cam bit 111 triggers second button 142 of electromagnetic switch 14 at this moment, and discharge the 3rd button, simultaneously first button of electromagnetic switch also is in d/d state. when the knob main body when just changeing shelves 16 rotations, above-mentioned feeler 112 is positioned at accepting groove 121 and rotates to ejection part 122, and drive the slip of ejection piece 12 first buttons, finally first button 141 is triggered by ejection part 122; Simultaneously in connector 11 rotations, its upper cam block 111 discharges second button 142, this moment knob 2 be in just change shelves 16. when knob 2 by just changeing shelves 16 when anti-converting 17 is rotated, at first rotate to lock catch 18 by just changeing shelves 16, this moment, connector 11 and pushing block 12 were in state as shown in figure 12; But when knob 2 needs to continue to anti-converting 17 rotations because first stopper slot 83 on the knob main body 8 is in the state that is sealed by slide block 10, therefore can not accommodate be provided with panel 3 on locating part 4; So need earlier push button 9 to be slid into the second place 20, first stopper slot 83 of accommodating locating part 4 is discharged and knob 2 could be rotated to anti-converting 17. corresponding to aforesaid operations, rotation along with knob 2, the connector 11 that is positioned at switch enclosure also rotates to anti-converting 17, the trigger end 132 of feeler 112 and the 3rd button 131 contacts and the 3rd button 131 is triggered at this moment, cam bit 111 discharges second button 142 of electromagnetic switch 14 simultaneously. because the triggering of rocker switch 13 disconnected 132 is triggered, therefore its arc feeler 124 from reset terminal 133 and pushing block 12 is in contact with one another and this pushing block 12 is pushed up to

electromagnetic switch

14, and 14 first button 141 triggers on the electromagnetic switch the most at last.

According to said structure, because above-mentioned knob 2 need make push button 9 slide between the primary importance 19 and the second place 20 in the position of lock catch 18 just changeing between shelves 16 and the anti-converting 17 when rotating.Therefore the time of certain buffering is provided for the rotating of motor, has protected motor thus.

Claims

1. the switching mechanism of a chipper (1), described switching mechanism (1) comprises panel (3) and the rotatable knob (2) that is installed on the described panel (3), described knob (2) is provided with respect to described panel (3) just changes retaining (16), lock catch (18) and (17) three gears of anti-converting, described knob (2) comprises knob main body (8), it is characterized in that: described panel (3) is provided with locating part (4), and described knob (2) also comprises limited (22) that are coupled to movably on the described knob main body (8); Have the primary importance (19) and the second place (20) between described limited (22) and the described knob main body (8); When described knob (2) is in lock catch (18), described limited (22) can move between the primary importance (19) and the second place (20), when described limited (22) are in primary importance (19), described knob (2) can rotate described just the commentaries on classics between shelves (16) and the described lock catch (18), when described limited (22) were in the second place (20), described knob (2) can rotate between described anti-converting (17) and described lock catch (18).

2. the switching mechanism of chipper according to claim 1 (1), it is characterized in that: be provided with chute (82) in the described knob main body (8), described chute (82) can be accommodated described limited (22).

3. the switching mechanism of chipper according to claim 1 and 2 (1), it is characterized in that: described locating part (4) is for projecting upwards the convex of extension from described panel (3), described knob main body (8) is provided with stopper slot (83,86), and described stopper slot (83,86) can be accommodated described locating part (4).

4. the switching mechanism of chipper according to claim 3 (1), it is characterized in that: described stopper slot (83,86) is arranged at the two ends of described knob main body (8), and comprises first stopper slot (83) and second stopper slot (86).

5. the switching mechanism of chipper according to claim 4 (1) is characterized in that: when described limited (22) were in primary importance (19), described first stopper slot (83) was by described limited (22) sealing; When described limited (22) were in the second place (20), described second stopper slot (86) was by described limited (22) sealing.

6. the switching mechanism of chipper according to claim 2 (1), it is characterized in that: described limited (22) comprise slide block (10), described slide block (10) can slide in described chute (82).

7. the switching mechanism of chipper according to claim 6 (1), it is characterized in that: described limited (22) also comprise the push button (9) matched with described slide block (10).

8. the switching mechanism of chipper according to claim 7 (1), it is characterized in that: the centre of described chute (82) also is provided with dividing plate (81), and described slide block (10) and described push button (9) lay respectively at described dividing plate (81) both sides.

9. the switching mechanism of a chipper (1), it mainly comprises switch enclosure assembly (5) and knob (2), described knob (2) is provided with respect to described switch enclosure assembly (5) just changes retaining (16), (17) three gears of lock catch (18) and anti-converting, described switch enclosure assembly (5) comprises electromagnetic switch (14), rocker switch (13) and triggering assembly (23), described electromagnetic switch (14) has first button (141) and second button (142), described rocker switch (13) has the 3rd button (131), it is characterized in that: described triggering assembly (23) comprises connector (11) and pushing block (12), when described knob (2) is in lock catch (17), described connector (11) triggers described second button (142), and discharges described first button (141) and the 3rd button (131); Described knob (2) is in the described shelves that just changeing when (17), and described connector (11) drives described pushing block (12) makes described pushing block trigger described first button (141), and discharges described second button (142); When described knob (2) is in anti-converting (17), described connector (11) triggers described the 3rd button (131), and discharging described second button (142), described the 3rd button (131) promotes described pushing block (12) makes described pushing block trigger described first button (141).

10. the switching mechanism of chipper according to claim 9 (1), it is characterized in that: described pushing block (12) both sides are respectively equipped with ejection part (123) and arc feeler (124), described ejection part (123) can trigger described first button (141), and described arc feeler (124) can contact with described the 3rd button (131).

11. the switching mechanism of chipper according to claim 9 (1) is characterized in that: described knob (2) is arranged at described switch enclosure assembly (5) top, and interconnects with described connector (11).

12. the switching mechanism of chipper according to claim 9 (1), it is characterized in that: described connector (11) is provided with cam bit (111) and feeler (112), described cam bit (111) can trigger described second button (142), and described feeler (112) can trigger described the 3rd button (131).