CN108426013B - Indexing oscillating tooth transmission device with intermittent motion - Google Patents
Indexing oscillating tooth transmission device with intermittent motion Download PDFInfo
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- CN108426013B CN108426013B CN201810213607.6A CN201810213607A CN108426013B CN 108426013 B CN108426013 B CN 108426013B CN 201810213607 A CN201810213607 A CN 201810213607A CN 108426013 B CN108426013 B CN 108426013B
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- shock wave
- push rod
- oscillating tooth
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- wave device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H27/00—Step-by-step mechanisms without freewheel members, e.g. Geneva drives
- F16H27/04—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement
- F16H27/08—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement with driving toothed gears with interrupted toothing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
An indexing oscillating tooth transmission device with intermittent motion mainly comprises: establish the oscillating tooth frame in the centre wheel, this oscillating tooth frame is the ring that a plurality of oscillating tooth frame sections link to each other by the gasket and constitute, and a through-hole is respectively established to every gasket both sides, and these two through-holes correspond with the connect the via hole on the adjacent two oscillating tooth frame sections respectively to link to each other two adjacent oscillating tooth frame sections by the bolt that passes inside and outside gasket and connect the via hole, establish a push rod oscillating tooth on every pair of gasket, it includes: push rod, baffle, spring, bearing bracket, antifriction bearing and round pin axle. Two rolling bearings of the push rod oscillating tooth are respectively adjacent to the outer arc surface of the shock wave device and the inner arc of the center wheel, a key groove is formed in a center through hole of the shock wave device, a groove which is recessed towards the axis is formed in the outer peripheral surface of the shock wave device, a bus of the groove is parallel to the axis of the shock wave device, and the grooves are two or a plurality of grooves which are symmetrical when passing through the axis plane. The invention has stable transmission, the spring on the movable tooth of the push rod reduces the impact and the vibration in the transmission process, and prolongs the service life of the movable tooth transmission mechanism.
Description
Technical Field
The invention relates to a movable tooth transmission device.
Background
With the development of current mechanical products toward automation, the status of various automatic machines in the mechanical products is increasingly remarkable. Due to the requirements of the production process, mechanisms are often required to achieve periodic indexing and dividing actions, and various intermittent mechanisms gradually enter the industry. The oscillating tooth speed reducer has the advantages of small volume and weight, large transmission ratio, high efficiency, stable operation, low noise and long service life, and is widely applied to ships, vehicles and agricultural machinery, the structure of the oscillating tooth speed reducer is more and more important to be optimized along with the deep research on the oscillating tooth speed reducer, for example, the patent CN 107166017A can well solve the problem of backlash in the oscillating tooth transmission process, but the general structure of the current oscillating tooth speed reducer cannot realize the intermittent motion function, and cannot be used in a mechanism needing periodic stoppage and motion, and other types of intermittent mechanisms, such as cam intermittence, have the defects of insufficient bearing capacity, unstable operation, high noise and the like.
Disclosure of Invention
The invention aims to provide an indexing oscillating tooth transmission device which can realize periodic intermittence and operation in a transmission process, enables the coaxiality in the transmission process to be high through structural constraint and has intermittent motion and stable transmission.
The invention mainly comprises the following steps: shock wave device, centre wheel, oscillating tooth frame and push rod oscillating tooth. The central wheel is a disk-shaped ring, the inner peripheral surface of the central wheel is provided with uniformly distributed tooth-shaped cambered surfaces, and the generatrix of each tooth-shaped cambered surface is parallel to the axis. The movable rack is a circular ring formed by connecting a plurality of movable rack sections by gaskets, the outer diameter of the movable rack is smaller than the inner diameter of the central wheel, and the inner diameter of the movable rack is larger than the outer diameter of the shock wave device. The movable rack section is an arc-shaped rod with a rectangular cross section, two end faces of the movable rack section are respectively parallel to two end faces of the center wheel, preferably, the thickness of the two end faces is larger than that of the center wheel, an open slot is respectively arranged on each end top, an inner arc and an outer arc of the movable rack section, a connecting through hole penetrating through the two slots is arranged on the two open slots, a gasket, namely an inner gasket and an outer gasket, is respectively arranged on the inner arc open slot and the outer arc open slot of the adjacent movable rack sections, a through hole is respectively arranged on two sides of each gasket, the two through holes respectively correspond to the connecting through holes on the adjacent movable rack sections, and the adjacent movable rack sections are connected through bolts penetrating the inner gasket, the outer gasket and the connecting through holes. The number and the length of the movable rack sections can be designed according to needs, and can be equal or different. The inner and outer gaskets arranged on the inner arc open slot and the outer arc open slot of the two adjacent oscillating tooth rack sections are in a pair, and each pair of gaskets is provided with a push rod oscillating tooth. This push rod oscillating tooth includes: push rod, baffle, spring, bearing bracket, antifriction bearing and round pin axle. The two side edges of the flat plate type baffle are respectively adjacent to the end tops of the two adjacent oscillating rack sections, the middle part of the baffle is provided with a through hole, a push rod penetrates through the through hole, the push rods on the two sides of the baffle are respectively sleeved with a spring, one side of the spring facing the center wheel is an outer spring, the rigidity of the outer spring is greater than that of an inner spring facing the shock wave device, one end of each spring is adjacent to the baffle, and the other end of each spring is adjacent to the inner gasket and the other end of each. Two ends of the push rod respectively penetrate through the central through holes on the inner gasket and the outer gasket, and the end top is fixed on the bearing frame. The push rod, the baffle and the gasket are coaxial and pass through the axis of the shock wave device, so that the movable teeth of the push rod can keep good coaxiality, and further the shock wave device and the central wheel can be stably meshed. Each rolling bearing is arranged on each bearing frame and is movably connected to the bearing frame through a pin shaft, the pin shaft is parallel to the axis of the shock wave device, the two rolling bearings of the push rod oscillating tooth are adjacent to the outer arc surface of the shock wave device and the inner arc of the center wheel respectively, and the outer diameter of each rolling bearing is smaller than the diameter of the outer groove hole of the shock wave device. The shock wave device is a disc-like, a key groove is arranged in a central through hole, grooves which are recessed towards the axis are arranged on the peripheral surface of the shock wave device, the generatrix of each groove is parallel to the axis of the shock wave device, and the grooves are two or a plurality of grooves which are symmetrical by passing through the axis plane.
The working process of the invention is roughly as follows: under the normal state, the spring is in a compressed state, and the two rolling bearings of the push rod oscillating tooth are respectively adjacent to the outer peripheral surface of the shock wave device and the inner peripheral surface of the central wheel; when the movable teeth of the push rod enter the groove of the shock wave device, under the action of the force difference of the inner spring and the outer spring, the movable teeth of the push rod are enabled to be meshed with the surface of the groove of the shock wave device and separated from the inner peripheral surface of the central wheel, and when the movable teeth of the push rod leave the groove of the shock wave device, the movable teeth of the push rod are restored to the normal state, so that intermittent transmission is.
Compared with the prior art, the invention has the following advantages:
1. the grooves which are uniformly distributed on the shock wave device and the spring action on the movable teeth of the push rod are utilized to ensure that the movable teeth of the push rod are intermittently meshed with the central wheel, and continuous and repeated intermittence and operation can be obtained in one movement period. The multi-tooth meshing characteristic of the movable tooth transmission enables the bearing capacity of the transmission device to be enhanced.
2. Due to the positioning of the inner and outer gasket through holes and the baffle plate hole, the movable teeth of the push rod can keep good coaxiality in the inner and outer moving process, and the operation is stable.
3. The spring on the push rod can play the effect of shock attenuation buffering, reduces and assaults for noise reduction in the transmission process and the life of extension push rod oscillating tooth.
Drawings
FIG. 1 is a schematic front view of example I of the present invention.
FIG. 2 is a schematic front view of example II of the present invention.
FIG. 3 is a schematic side view of example I of the present invention.
Figure 4 is a schematic, perspective view of a shock absorber according to example I of the present invention.
FIG. 5 is a schematic perspective view of a shock absorber according to example II of the present invention.
Fig. 6 is a schematic front perspective view of a pusher oscillating tooth according to the present invention.
FIG. 7 is a graph showing the rotational speed of a center-of-travel wheel of a shock absorber in accordance with an embodiment of the present invention.
FIG. 8 is a graph of the rotational speed of a center of travel wheel of a shock absorber in accordance with embodiment II of the present invention.
In the figure: 1. shock wave ware, 2, oscillating tooth frame, 3, centre wheel, 4, antifriction bearing, 5, bearing frame, 6, round pin axle, 7, push rod, 8, interior spring, 9, outer spring, 10, gasket, 11, bolt, 12, baffle.
Detailed Description
In the schematic front view of the indexing oscillating tooth transmission mechanism with intermittent motion shown in fig. 1, fig. 2 and fig. 3, the central wheel 3 is a disk-shaped ring, the inner peripheral surface is provided with uniformly distributed tooth-shaped cambered surfaces, and the generatrix of the tooth-shaped cambered surfaces is parallel to the axis. The center wheel is internally provided with a movable rack 2 which is a circular ring formed by connecting a plurality of movable rack sections by gaskets 10, the outer diameter of the movable rack is smaller than the inner diameter of the center wheel, and the inner diameter of the movable rack is larger than the outer diameter of the shock wave device 1. The movable rack section is an arc-shaped rod with a rectangular cross section, two end faces of the movable rack section are respectively parallel to two end faces of the center wheel, the thickness of the two end faces is larger than that of the center wheel, an open slot is respectively arranged on each end top, an inner arc and an outer arc of the movable rack section, a connecting through hole penetrating through the two slots is arranged on the two open slots, a gasket is respectively arranged on each of the inner arc open slots and the outer arc open slots of the adjacent movable rack sections, namely the inner gasket and the outer gasket, a through hole is respectively arranged on two sides of each gasket, the two through holes respectively correspond to the connecting through holes on the adjacent movable rack sections, and the two adjacent movable rack sections are connected through bolts 11 penetrating through the inner gasket, the outer gasket and the connecting through holes. The number of the oscillating tooth rack sections of the embodiment I is 10 with equal length. The number of the oscillating tooth rack sections of the embodiment II is 6 with unequal length. The two adjacent inner and outer gaskets are arranged on the inner arc open slot and the outer arc open slot of the two adjacent oscillating tooth rack sections in a pair, a push rod oscillating tooth is arranged on each pair of gaskets, as shown in figure 6, two side edges of a flat baffle plate 12 are respectively adjacent to the end tops of the two adjacent oscillating tooth rack sections, a through hole is arranged in the middle of the baffle plate, a push rod 7 penetrates through the through hole, a spring is sleeved on each push rod on two sides of the baffle plate, an outer spring 9 is arranged on one side, facing the center wheel, of the spring 9, the rigidity of the outer spring is greater than that of an inner spring 8 on one side, facing the shock absorber, one end of each spring is adjacent. Two ends of the push rod respectively penetrate through the central through holes on the inner gasket and the outer gasket, and the end top is fixed on the bearing frame 5. The push rod is coaxial with the baffle and the gasket through hole and passes through the axis of the laser. Each bearing frame is provided with a rolling bearing 4, the rolling bearings are movably connected to the bearing frames through pin shafts 6, the pin shafts are parallel to the axes of the shock wave devices, the two rolling bearings of the push rod oscillating teeth are adjacent to the outer arc surfaces of the shock wave devices and the inner arc surfaces of the center wheels respectively, and the outer diameters of the rolling bearings are smaller than the diameters of outer groove holes of the shock wave devices. The shock wave device is a disc-like, a key groove is arranged in a central through hole, grooves which are recessed towards an axis are formed in the peripheral surface of the shock wave device, the generatrices of the grooves are parallel to the axis of the shock wave device, 10 grooves which are symmetrical through an axis plane are formed in the embodiment I, as shown in figure 4, and 2 grooves which are symmetrical through an axis plane are formed in the embodiment II, as shown in figure 5.
In the rotating speed diagram of a stroke center wheel of the shock wave device I shown in the figure 7, the rotating speed diagram can realize multiple times of intermittence and operation in one period, different intermittence time and operation time ratios can be obtained by changing the size of the groove, and the market adaptability is strong.
In the rotation speed diagram of a stroke center wheel of a shock absorber of the embodiment II of the invention shown in fig. 8, it can be seen that the first half part of one period can be operated, and the second half part can realize intermittence, so that the shock absorber is suitable for occasions needing long-time intermittence or operation.
Claims (2)
1. An indexing oscillating tooth transmission device with intermittent motion is characterized in that: the center wheel is a disk-shaped ring, the inner peripheral surface is provided with uniformly distributed tooth-shaped cambered surfaces, the generatrix of the tooth-shaped cambered surfaces is parallel to the axis, the center wheel is internally provided with a movable rack, the movable rack is a circular ring formed by connecting a plurality of movable rack sections by gaskets, the outer diameter of the circular ring is smaller than the inner diameter of the center wheel, and the inner diameter of the circular ring is larger than the outer diameter of the shock wave device, wherein the movable rack sections are arc-shaped rods with rectangular sections, two end surfaces of the movable rack sections are respectively parallel to two end surfaces of the center wheel, each end top, inner arc and outer cambered surfaces of each movable rack section are respectively provided with an open slot, the two open slots are provided with a connecting through hole penetrating through the two slots, the two adjacent movable rack sections are respectively provided with a gasket, namely an inner gasket and an outer gasket, two sides of each gasket are respectively provided with a through hole, the two through holes respectively correspond to the connecting through holes on the two adjacent movable rack sections, and the two adjacent movable rack, and two inner and outer spacers arranged on the inner arc open slot and the outer arc open slot of two adjacent oscillating rack sections are a pair, each pair of spacers is provided with a push rod oscillating tooth, wherein two side edges of a flat baffle plate are respectively adjacent to the end tops of the two adjacent oscillating rack sections, the middle part of the baffle plate is provided with a through hole, a push rod passes through the through hole, the push rods on the two sides of the baffle plate are respectively sleeved with a spring, the outer spring is arranged on one side of the push rod facing a center wheel, the rigidity of the outer spring is greater than that of the inner spring facing a shock wave device, one end of each spring is adjacent to the baffle plate, the other end of each spring is adjacent to the inner and outer spacers, the two ends of the push rod respectively pass through the center through holes on the inner and outer spacers, the end tops are fixed on a bearing frame, the push rod, the through holes of the baffle plate and the spacers are, two rolling bearings of the push rod oscillating tooth are respectively adjacent to an outer arc surface of the shock wave device and an inner arc of the center wheel, the outer diameter of each rolling bearing is smaller than the diameter of an outer groove hole of the shock wave device, the shock wave device is a disc-like, a key groove is formed in a center through hole, a groove which is recessed towards an axis is formed in the outer peripheral surface of the shock wave device, a bus of the groove is parallel to the axis of the shock wave device, and the grooves are symmetrical to each other by an axis.
2. The indexing oscillating tooth actuator with intermittent motion according to claim 1, wherein: the thickness of the two end faces of the movable rack section is larger than that of the central wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213607.6A CN108426013B (en) | 2018-03-15 | 2018-03-15 | Indexing oscillating tooth transmission device with intermittent motion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213607.6A CN108426013B (en) | 2018-03-15 | 2018-03-15 | Indexing oscillating tooth transmission device with intermittent motion |
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| Publication Number | Publication Date |
|---|---|
| CN108426013A CN108426013A (en) | 2018-08-21 |
| CN108426013B true CN108426013B (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810213607.6A Active CN108426013B (en) | 2018-03-15 | 2018-03-15 | Indexing oscillating tooth transmission device with intermittent motion |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109990067B (en) * | 2019-04-12 | 2020-06-23 | 燕山大学 | External shock wave swing rod oscillating tooth speed reducer capable of stopping |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1465668A1 (en) * | 1986-12-08 | 1989-03-15 | Одесский технологический институт пищевой промышленности им.М.В.Ломоносова | Wave step transmission |
| KR100224512B1 (en) * | 1991-03-01 | 1999-10-15 | 도꼬로 아쯔오 | Wave gear drive |
| CN2284883Y (en) * | 1996-07-12 | 1998-06-24 | 陈智 | Full rolling moving gear |
| CN101435363A (en) * | 2008-12-12 | 2009-05-20 | 四川大学 | Internal wave type non-crankshaft internal combustion engine |
| CN105351451A (en) * | 2015-11-30 | 2016-02-24 | 湖南省金函数科技有限公司 | Roller type harmonic reducer |
| CN206130065U (en) * | 2016-09-23 | 2017-04-26 | 燕山大学 | Weak rigidity rush -rod oscillating tooth transmission of crack formula that disappears in real time |
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2018
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| CN108426013A (en) | 2018-08-21 |
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Effective date of registration: 20211213 Address after: 066102 No. 3-201, building 4, ningxinyuan, Beidaihe District, Qinhuangdao City, Hebei Province Patentee after: Qinhuangdao Aifu Electronic Technology Co.,Ltd. Address before: 066004 No. 438 west section of Hebei Avenue, seaport District, Hebei, Qinhuangdao Patentee before: Yanshan University Effective date of registration: 20211213 Address after: 100074, Beijing, Fengtai District, 9 North East Road, No. Patentee after: Beijing Xinghang Electro-mechanical Equipment Co.,Ltd. Address before: 066102 No. 3-201, building 4, ningxinyuan, Beidaihe District, Qinhuangdao City, Hebei Province Patentee before: Qinhuangdao Aifu Electronic Technology Co.,Ltd. |
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