CN204921892U - Two pawl intermittent type rotary mechanism - Google Patents
Two pawl intermittent type rotary mechanism Download PDFInfo
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- CN204921892U CN204921892U CN201520585787.2U CN201520585787U CN204921892U CN 204921892 U CN204921892 U CN 204921892U CN 201520585787 U CN201520585787 U CN 201520585787U CN 204921892 U CN204921892 U CN 204921892U
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Abstract
The utility model discloses a move two pawl intermittent type rotary mechanism efficient, long service life, including pendulum rod, first pawl, the 2nd pawl and gearing, the articulated back shaft in middle part of pendulum rod can be swung for the fulcrum is reciprocal by this back shaft, the first pawl of the articulated V -arrangement of lower extreme of pendulum rod, the middle part of first pawl is connected with first extension spring, the terminal surface of first pawl is the flank of tooth shape assorted inclined plane with the ratchet, first pawl can promote the ratchet and rotate when the clockwise swing of pendulum rod, the upper end of pendulum rod and the second pawl of the articulated V -arrangement of first pawl homonymy, the second extension spring is connected at the middle part of second pawl, the terminal surface of second pawl is the flank of tooth shape assorted inclined plane with the ratchet, the second pawl can promote the ratchet and rotate when the pendulum rod is anticlockwise swung.
Description
Technical field
The utility model relates to a kind of two ratchet intermittent rotary mechanism.
Background technique
Intermittent motion mechanism is the mechanism that the continuous motion of driving link can be converted to the regular motion of driven member and rests, be usually used in lathe, automaton and instrument, realize that raw material is sent to, finished product output, braking, calibration, transposition, stepping, to surmount or the motion that commutates.Ratchet mechanism has simple, the easily manufactured and reliable advantage of moving of structure, and the corner of ratchet can regulate as required, and therefore ratchet mechanism can provide feeding aborning, brakes, surmount and the functions such as transposition calibration.Index table, index plate and dividing head extensively adopt ratchet and pawl arrangement to realize intermittent-rotation, but what the existing ratchet and pawl arrangement being applied to above-mentioned index table, index plate and dividing head often adopted is, and single-pawl stirs ratchet realizes intermittent movement, the main deficiency existed is: efficiency of movement is low, and adopt a ratchet frequently to stir ratchet, the end wear of ratchet is very fast, affects working life.
Model utility content
The utility model is intended to provide that a kind of efficiency of movement is high, two ratchet intermittent rotary mechanisms of long service life.
Two ratchet intermittent rotary mechanisms in this programme, comprise fork, first ratchet, second pawl-and-gearing, the hinged back shaft in middle part of described fork can this back shaft be also fulcrum reciprocally swinging, first ratchet of the hinged V-arrangement in lower end of fork, the middle part of the first ratchet is connected with the first extension spring, the end face of the first ratchet is the inclined-plane matched with the tooth surface shape of ratchet, first ratchet can promote pawl wheel when fork clockwise oscillation, the upper end of fork and the second ratchet of the hinged V-arrangement of the first ratchet homonymy, the middle part of the second ratchet connects the second extension spring, the end face of the second ratchet is the inclined-plane matched with the tooth surface shape of ratchet, second ratchet can promote pawl wheel when fork counter-clockwise swing.
Working principle and the beneficial effect of this programme are as follows: under the drive of power, clockwise and counter-clockwise swing, when fork swings counterclockwise, the end face of the second ratchet contacts with ratchet fork, the end face of the first ratchet is separated with ratchet, and the second ratchet is stirred ratchet and turned over an angle; When fork clockwise direction swings, the end face of the first ratchet contacts with ratchet, and the end face of the second ratchet is separated with ratchet, promotes ratchet and turns over an angle, can realize the intermittent rotary of ratchet thus by the first ratchet.
This programme adopts two ratchet jointly to stir ratchet and realizes intermittent movement, and the every reciprocally swinging of fork once, just can realize twice intermittent-rotation of ratchet, efficiency of movement is high, and double swing-bar is used alternatingly, effectively prevent and only adopt single-pawl frequently to stir ratchet, be easy to wear and tear and reduce the problem in life-span.
Further, the limit switch limiting fork amplitude of fluctuation is respectively equipped with in the both sides of fork.The pendulum angle of fork can be limited, to meet work requirements by limit switch.
Further,. also comprise positioning disk, first ratchet by the first bearing pin and fork hinged, second ratchet by the second bearing pin and fork hinged, on positioning disk, the track position of corresponding first bearing pin and the second bearing pin offers arc guide groove respectively, and the first bearing pin and the second bearing pin are inserted in two arc guide grooves respectively.Arc guide groove plays the effect of guiding to the first bearing pin and the second bearing pin, thus the driving structure that fork, the first ratchet and the second ratchet are formed is more stable.
Further, described ratchet spline joint, on ratchet shaft, ratchet shaft is provided with break.Ratchet on ratchet shaft, facilitates installing/dismounting by spline joint, for avoid ratchet in each rotation due to inertia the excess of stroke, and be provided with break on ratchet shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: limit switch 1, fork 2, the extension spring 5 of positioning disk 3, first ratchet 4, first, ratchet shaft 6, the extension spring 9 of ratchet 7, second ratchet 8, second.
Embodiment is substantially as shown in Figure 1: the two ratchet intermittent rotary mechanism of the present embodiment comprises fork, middle part and the back shaft of fork are hinged, the upper end of fork is driven by the piston rod of cylinder and with this back shaft for fulcrum reciprocally swinging, is respectively equipped with the limit switch limiting fork amplitude of fluctuation in the both sides of fork.Ratchet is arranged on the side direction of fork, and ratchet spline joint, on ratchet shaft, ratchet shaft is provided with break.
First ratchet of the hinged V-arrangement in lower end of fork, concrete, the first ratchet by the first bearing pin and fork hinged, the first bearing pin is provided with the packing ring that two prevent the first ratchet and the mutual play of fork, and the end face of two packing ring ring-types all offsets with fork and the first ratchet.The middle part corner of the first ratchet and one end of the first extension spring are fixed, and the other end of the first extension spring is fixed in frame.The end face of the first ratchet is the inclined-plane matched with the tooth surface shape of ratchet, and the first ratchet can promote pawl wheel when fork clockwise oscillation.
Second ratchet is also V-shaped, second ratchet be hinged on fork upper end and with the first ratchet homonymy, concrete, second ratchet by the second bearing pin and fork hinged, second bearing pin is provided with the packing ring that two prevent the second ratchet and the mutual play of fork, and the end face of two packing ring ring-types all offsets with fork and the second ratchet.The middle part of the second ratchet and one end of the second extension spring are fixed, and the other end of the second extension spring is fixed on the side of fork near the first ratchet.The end face of the second ratchet is the inclined-plane matched with the tooth surface shape of ratchet, and the second ratchet can promote pawl wheel when fork counter-clockwise swing.
Positioning disk in the present embodiment is positioned at the side direction of fork, and on positioning disk, the track position of corresponding first bearing pin and the second bearing pin offers arc guide groove respectively, and the first bearing pin and the second bearing pin are inserted in two arc guide grooves respectively.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. pair ratchet intermittent rotary mechanism, it is characterized in that, comprise fork, first ratchet, second pawl-and-gearing, the hinged back shaft in middle part of described fork can this back shaft be also fulcrum reciprocally swinging, first ratchet of the hinged V-arrangement in lower end of fork, the middle part of the first ratchet is connected with the first extension spring, the end face of the first ratchet is the inclined-plane matched with the tooth surface shape of ratchet, first ratchet can promote pawl wheel when fork clockwise oscillation, the upper end of fork and the second ratchet of the hinged V-arrangement of the first ratchet homonymy, the middle part of the second ratchet connects the second extension spring, the end face of the second ratchet is the inclined-plane matched with the tooth surface shape of ratchet, second ratchet can promote pawl wheel when fork counter-clockwise swing.
2. according to claim 1 pair of ratchet intermittent rotary mechanism, is characterized in that: be respectively equipped with the limit switch limiting fork amplitude of fluctuation in the both sides of fork.
3. according to claim 2 pair of ratchet intermittent rotary mechanism, it is characterized in that: also comprise positioning disk, first ratchet by the first bearing pin and fork hinged, second ratchet by the second bearing pin and fork hinged, on positioning disk, the track position of corresponding first bearing pin and the second bearing pin offers arc guide groove respectively, and the first bearing pin and the second bearing pin are inserted in two arc guide grooves respectively.
4. according to claim 3 pair of ratchet intermittent rotary mechanism, is characterized in that: described ratchet spline joint, on ratchet shaft, ratchet shaft is provided with break.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520585787.2U CN204921892U (en) | 2015-08-06 | 2015-08-06 | Two pawl intermittent type rotary mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520585787.2U CN204921892U (en) | 2015-08-06 | 2015-08-06 | Two pawl intermittent type rotary mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN204921892U true CN204921892U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520585787.2U Active CN204921892U (en) | 2015-08-06 | 2015-08-06 | Two pawl intermittent type rotary mechanism |
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| CN (1) | CN204921892U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855908A (en) * | 2016-06-08 | 2016-08-17 | 赵锋 | Workbench turning device for milling machine |
| CN107387700A (en) * | 2017-08-23 | 2017-11-24 | 中持水务股份有限公司 | The method and the drive mechanism of implementation this method being driven to horizontal revolving kind equipment |
| CN107941177A (en) * | 2017-12-15 | 2018-04-20 | 重庆厚全科技发展有限公司 | Automobile component detection device |
| CN110757221A (en) * | 2019-11-13 | 2020-02-07 | 河南飞龙(芜湖)汽车零部件有限公司 | Water pump motor end cover automatic feeding equipment |
-
2015
- 2015-08-06 CN CN201520585787.2U patent/CN204921892U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855908A (en) * | 2016-06-08 | 2016-08-17 | 赵锋 | Workbench turning device for milling machine |
| CN107387700A (en) * | 2017-08-23 | 2017-11-24 | 中持水务股份有限公司 | The method and the drive mechanism of implementation this method being driven to horizontal revolving kind equipment |
| CN107941177A (en) * | 2017-12-15 | 2018-04-20 | 重庆厚全科技发展有限公司 | Automobile component detection device |
| CN107941177B (en) * | 2017-12-15 | 2019-10-01 | 重庆厚全科技发展有限公司 | Automobile component detection device |
| CN110757221A (en) * | 2019-11-13 | 2020-02-07 | 河南飞龙(芜湖)汽车零部件有限公司 | Water pump motor end cover automatic feeding equipment |
| CN110757221B (en) * | 2019-11-13 | 2021-05-25 | 河南飞龙(芜湖)汽车零部件有限公司 | Water pump motor end cover automatic feeding equipment |
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