CN103307244A - Connecting rod tooth-meshed speed reduction and change device - Google Patents

Connecting rod tooth-meshed speed reduction and change device Download PDF

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Publication number
CN103307244A
CN103307244A CN201210062107XA CN201210062107A CN103307244A CN 103307244 A CN103307244 A CN 103307244A CN 201210062107X A CN201210062107X A CN 201210062107XA CN 201210062107 A CN201210062107 A CN 201210062107A CN 103307244 A CN103307244 A CN 103307244A
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CN
China
Prior art keywords
connecting rod
gear
eccentric disc
speed reducing
speed reduction
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Pending
Application number
CN201210062107XA
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Chinese (zh)
Inventor
周有强
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Individual
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Individual
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Publication date
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Priority to CN201210062107XA priority Critical patent/CN103307244A/en
Publication of CN103307244A publication Critical patent/CN103307244A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a connecting rod tooth-meshed speed reduction and change device, which is a speed reduction and change device formed by combining a connecting rod mechanism and a mesh type transmission. A plurality of eccentric connecting rod mechanisms are uniformly distributed along the circumferential direction; and the top end of each connecting rod is made into a gear on which an output inner gear ring is arranged. When an input mandrel and an eccentric disc operate, the gear at the top end of each connecting rod is driven to be meshed with gear teeth of the inner gear ring in sequence, thereby driving the input gear ring to output power. When a fixed eccentric disc is adopted, the connecting rod gear-meshed speed reduction and change device is used as a speed reduction device; and when a distance adjusting eccentric disc is adopted, the connecting rod gear-meshed speed reduction and change device is used as a speed change device. The connecting rod gear-meshed speed reduction and change device has the characteristic that a plurality of teeth are simultaneously meshed, has large power transfer and has the constant power output characteristic during variable speed transmission.

Description

Connecting rod tooth-type speed reducing/changing device
Technical field
The invention belongs to mechanical transmission design and manufacture technical field.
Background technique
At present, speed reducer generally is to adopt gear mechanism to carry out transmission, but gear mechanism is monodentate engagement stand under load when transmission, therefore the intensity of monodentate directly has influence on the power that gear mechanism transmits with size; In addition, the velocity ratio that a pair of gear transmission realizes is i=3~7 normally, just need to adopt many to gear and add large volume if require to increase velocity ratio.So for big speed ratio and high-power transmission, its volume of the gear mechanism of employing, structure just need the phase strain large and complicated.
Mechanical stepless transmission structure, form that speed change gear is used at present are more, but its working principle all is to utilize friction driving basically, therefore can only transmit less power, usually is confined to N≤10kw, and drive characteristic mostly is permanent torque output.
Summary of the invention
The connecting rod tooth-type speed reducing/changing device that the invention proposes is combined by linkage mechanism and engagement transmission mechanism, this device is equipped with eccentric disc with bearing in axle, the outer surface of bearing and several in the circumferential direction of the circle equally distributed connecting rod bottom connection touch, the connecting rod lower end links to each other with rocking bar by bearing pin, and the rocking bar the other end is fixed on the frame by bearing pin; The gear teeth are made on the top of each connecting rod, its outer ring gear that is equipped with; When axle turned round, the gear teeth order gear teeth corresponding to ring gear that drive on each connecting rod by the eccentric disc bearing carried out engagement driving.
The characteristics one of this device are that it can namely can be made into speed reducer with the same basic system, can make speed change gear again, only need fixedly eccentric disc to use the roll adjustment eccentric disc instead in this; The 2nd, this device has the characteristics of multiple tooth simultaneously engagement, monodentate carrying minimizing when transmission, count Z 〉=3~5 with grinding tooth during single-phase transmission, will be multiplied during heterogeneous transmission, therefore can transmit relatively high power and small volume; The 3rd, during as speed reducer, can realize big speed ratio i 〉=40~50, during as speed change gear, then have constant power output characteristic.
Description of drawings
Below in conjunction with drawings and Examples the invention is specifically described:
Fig. 1: connecting rod tooth-type speed reducing/changing device schematic diagram
Fig. 2: roll adjustment eccentric disc structural representation
Wherein:
1, input axle 7, frame
2, eccentric disc 8, fixed support
3, rolling bearing 9, screw
4, connecting rod 10, inclined-plane voussoir
5, ratchet 11, roller
6, rocking bar 12, spring
Embodiment
The embodiment of the invention is as shown in Figure 1:
Be fixed with eccentric disc 2 in input axle 1, the bottom connection that is sleeved on rolling bearing 3 its excircles of eccentric disc 2 with 8 equally distributed connecting rods 4 touches, ratchet is made in order to be meshed with ratchet 5 in the top of connecting rod 4, the lower end then is connected with rocking bar 6 by bearing pin, the rocking bar the other end is fixed on also can be around fixed support 8 reciprocally swingings on the frame 7, and ratchet is by being connected in order to output power with the output reel along the screw 9 that circumferentially distributes.
When the running of input axle, drive eccentric disc and on the axis of rolling make eccentric motion, and each connecting rod that is distributed on the bearing circumference is subjected to driving eccentric and rocking bar, the ratchet order on its top enters engagement with ratchet, promote ratchet running outputting power, then withdraw from engagement, the gearing down process is finished in so continuous circulation.
The single-phase transmission that this device can be comprised of an eccentric disc and several connecting rods; Also can be two-phase or heterogeneous transmission.
The bearing pin of connecting rod lower end be except can also can linking to each other with slide block with rocking bar links to each other, and with slide block along runner movement.The chute track can be straight line, also can be circular curve.
The gear teeth on ring gear and connecting rod top can be ratchet and ratchet, also can be involute gear, circular tooth gear or other conjugate gearss.
Each connecting rod all has a Returnning spring.
In device, adopt fixedly eccentric disc, realize gearing down.
Realizing gear, mainly is the eccentric adjustment distance, therefore needs fixedly eccentric disc to change into roll adjustment eccentric disc structure, embodiment as shown in Figure 2:
This moment eccentric disc 2 be not fixedly be loaded on the input axle 1 but the dish in the middle of opening-elongated slot be enclosed within the input axle 1 on and can along the input axle 1 move up and down, between slotted eye and axle the arrangement one inclined-plane voussoir 10.Voussoir can move forward and backward along axle, and its upper surface is connected with eccentric disc by roller 11, and a spring 12 is arranged below axle and between the slotted eye, and its effect is to guarantee that roller is pressed on the voussoir inclined-plane at any time.
Like this, as long as move forward and backward voussoir 10, eccentric disc 2 is also adjusted its throw of eccentric with corresponding moving up and down, and the connecting rod top ratchet that is driven by it also changes the distance that promotes with the ratchet engagement thereupon, thereby has realized the speed governing transmission.
The roll adjustment eccentric disc can adopt double eccentric mechanism or mobile cotter mechanism to carry out roll adjustment.

Claims (8)

1. connecting rod tooth-type speed reducing/changing device is combined by linkage mechanism and engagement transmission mechanism, it is characterized in that: this device is equipped with eccentric disc with bearing in axle, the outer surface of bearing and several in the circumferential direction of the circle equally distributed connecting rod bottom connection touch, the connecting rod lower end links to each other with rocking bar by bearing pin, and the rocking bar the other end is fixed on the frame by bearing pin; The gear teeth are made on the top of each connecting rod, its outer ring gear that is equipped with; When axle turned round, the gear teeth order gear teeth corresponding to ring gear that drive on each connecting rod by the eccentric disc bearing carried out engagement driving.
2. speed reducing/changing device according to claim 1 is characterized in that: the single-phase transmission that this device can be comprised of an eccentric disc and several connecting rods; Also can be two-phase or heterogeneous transmission.
3. speed reducing/changing device according to claim 1 is characterized in that: the bearing pin of connecting rod lower end be except can also can linking to each other with slide block with rocking bar links to each other, and with slide block along runner movement.The chute track can be straight line, also can be circular curve.
4. speed reducing/changing device according to claim 1, it is characterized in that: the gear teeth on ring gear and connecting rod top can be ratchet and ratchet, also can be involute gear, circular tooth gear or other conjugate gearss.
5. speed reducing/changing device according to claim 1, it is characterized in that: each connecting rod all has a Returnning spring.
6. speed reducing/changing device according to claim 1 is characterized in that: adopt fixedly eccentric disc in device, realize gearing down.
7. speed reducing/changing device according to claim 1 is characterized in that: adopt the roll adjustment eccentric disc in device, realize gear.
8. according to claim 1 or 7 described speed reducing/changing devices, it is characterized in that: the roll adjustment eccentric disc can adopt double eccentric mechanism or mobile cotter mechanism to carry out roll adjustment.
CN201210062107XA 2012-03-12 2012-03-12 Connecting rod tooth-meshed speed reduction and change device Pending CN103307244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210062107XA CN103307244A (en) 2012-03-12 2012-03-12 Connecting rod tooth-meshed speed reduction and change device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210062107XA CN103307244A (en) 2012-03-12 2012-03-12 Connecting rod tooth-meshed speed reduction and change device

Publications (1)

Publication Number Publication Date
CN103307244A true CN103307244A (en) 2013-09-18

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CN201210062107XA Pending CN103307244A (en) 2012-03-12 2012-03-12 Connecting rod tooth-meshed speed reduction and change device

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CN (1) CN103307244A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401591A (en) * 2016-05-20 2017-11-28 李拓 Gear run stepless speed changer
CN110478605A (en) * 2019-09-20 2019-11-22 中南大学湘雅医院 A kind of cardiovascular expansion device
CN113189266A (en) * 2021-03-29 2021-07-30 黑龙江峰向标科技有限公司 Split type spectrum automatic titrator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2081919U (en) * 1990-03-30 1991-07-31 张德昆 Rigid stepless speed-variating mechanism
CN2311655Y (en) * 1997-10-16 1999-03-24 朱湘云 Compound pendulum type internal engagement few tooth differential planetary driver
RU2296897C1 (en) * 2005-12-12 2007-04-10 Альберт Всеволодович Шолохов Reduction gear
CN101398069A (en) * 2007-09-24 2009-04-01 麦妙玲 Continuously variable transmission
CN202500976U (en) * 2012-03-12 2012-10-24 周有强 Connecting-rod tooth-engaging type speed reducing and changing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2081919U (en) * 1990-03-30 1991-07-31 张德昆 Rigid stepless speed-variating mechanism
CN2311655Y (en) * 1997-10-16 1999-03-24 朱湘云 Compound pendulum type internal engagement few tooth differential planetary driver
RU2296897C1 (en) * 2005-12-12 2007-04-10 Альберт Всеволодович Шолохов Reduction gear
CN101398069A (en) * 2007-09-24 2009-04-01 麦妙玲 Continuously variable transmission
CN202500976U (en) * 2012-03-12 2012-10-24 周有强 Connecting-rod tooth-engaging type speed reducing and changing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401591A (en) * 2016-05-20 2017-11-28 李拓 Gear run stepless speed changer
CN110478605A (en) * 2019-09-20 2019-11-22 中南大学湘雅医院 A kind of cardiovascular expansion device
CN113189266A (en) * 2021-03-29 2021-07-30 黑龙江峰向标科技有限公司 Split type spectrum automatic titrator
CN113189266B (en) * 2021-03-29 2022-09-16 黑龙江峰向标科技有限公司 Split type spectrum automatic titrator and use method

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Application publication date: 20130918

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