CN107606083A - V belt translation tensioning apparatus - Google Patents

V belt translation tensioning apparatus Download PDF

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Publication number
CN107606083A
CN107606083A CN201710865010.5A CN201710865010A CN107606083A CN 107606083 A CN107606083 A CN 107606083A CN 201710865010 A CN201710865010 A CN 201710865010A CN 107606083 A CN107606083 A CN 107606083A
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CN
China
Prior art keywords
rotating disk
belt
driven pulley
power transmission
tensioning apparatus
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Granted
Application number
CN201710865010.5A
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Chinese (zh)
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CN107606083B (en
Inventor
谢继发
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Dongguan Tailing Electric Vehicle Co ltd
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Shenzhen Compare Thinking Technology Co Ltd
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Priority to CN201710865010.5A priority Critical patent/CN107606083B/en
Publication of CN107606083A publication Critical patent/CN107606083A/en
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Publication of CN107606083B publication Critical patent/CN107606083B/en
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Abstract

The invention discloses a kind of V belt translation tensioning apparatus, including driving wheel, driven pulley, belt and governor motion, driving wheel is oppositely arranged with driven pulley, belt is enclosed in driving wheel and driven pulley periphery, governor motion includes rotating disk, the first power transmission shaft and second driving shaft, second driving shaft central axis overlaps with rotating disk pivot center, and rotating disk has the first mounting hole, and the first installation axially bored line biases pre-determined distance to rotating disk pivot center.It is rotatablely connected by the first power transmission shaft and second driving shaft, first power transmission shaft is fixedly connected with rotating disk, first power transmission shaft is inserted to the first mounting hole of rotating disk again, the pivot center of rotating disk overlaps with second driving shaft, and rotating disk turns an angle, driven pulley moves with the first power transmission shaft, and then driven pulley changes with driving wheel centre-to-centre spacing, the tensioning of belt is realized, the convenient tensioning situation to belt is adjusted in time, the transmission efficiency of V belt translation is improved, extends the service life of belt.

Description

V belt translation tensioning apparatus
Technical field
The present invention relates to V belt translation technical field, more particularly to a kind of V belt translation tensioning apparatus.
Background technology
V belt translation is widely used in various transmission fields as a kind of common kind of drive by people, especially take turns two, Using especially extensive in the transmission field of the three-wheel vehicles.
In the course of work of V belt translation, due to belt, easily relaxation, it is necessary to belt application normal pressure, ensures belt not There is situation about skidding.
Applying the tensioning apparatus of normal pressure to belt currently on the market, generally by external governor motion to belt Tightly, but external governor motion is complicated, and compactness is not high, it is impossible to according to the actual use situation of belt, in time regulation pair The normal pressure that belt applies, and then the transmission efficiency of whole V belt translation and reliability are reduced.
The content of the invention
It is an object of the invention to provide a kind of V belt translation tensioning apparatus, it is intended to solves skin in V belt translation of the prior art The technical problem that band can not be adjusted in time.
To achieve the above object, a kind of V belt translation tensioning apparatus that the present invention uses, the V belt translation tensioning apparatus include Driving wheel, driven pulley, belt and governor motion, the driving wheel are oppositely arranged with the driven pulley, and the belt is enclosed in institute State driving wheel and the driven pulley periphery, the governor motion includes rotating disk, the first power transmission shaft and second driving shaft, and described second Center transmission shaft axis overlaps with the rotating disk pivot center, and the rotating disk has the first mounting hole, the first installation hole axle Line biases pre-determined distance to the rotating disk pivot center, and described first power transmission shaft one end is fixedly connected with the driven pulley, described The first power transmission shaft other end passes through first mounting hole, and is rotatablely connected with the second driving shaft, and the driven pulley is with institute Rotating disk rotation is stated, to change the distance between the driving wheel and the driven pulley.
Wherein, circumference of first power transmission shaft away from described driven pulley one end has multiple first raised, and described second Circumference of the power transmission shaft close to described rotating disk one end has multiple second raised, and described first raised engages with the described second projection.
Wherein, the second driving shaft has adapter sleeve, and the adapter sleeve is located at the second driving shaft and turned close to described Disk one end, first driveshaft section are placed in the adapter sleeve, and second projection is located at the adapter sleeve madial wall
Wherein, the governor motion also includes fixed seat, and the fixed seat is fixedly connected with the rotating disk, the fixed seat With the second mounting hole, first power transmission shaft loads second mounting hole away from described second driving shaft one end.
Wherein, the V belt translation tensioning apparatus also includes housing, and the housing has an accommodating chamber, the driving wheel and driven Wheel, and the belt are contained in the accommodating chamber.
Wherein, the housing has erecting bed, and the erecting bed is located at the case inside in the accommodating chamber Wall, the rotating disk is adapted to the erecting bed, and is detachably connected.
Wherein, the V belt translation tensioning apparatus also includes baffle plate, and the baffle plate is fixedly connected on the case inside wall, and Contradicted with the rotating disk.
Wherein, the rotating disk offers deep-slotted chip breaker, and the rotating disk turns to predeterminated position, and bolt passes through the deep-slotted chip breaker, It is fixed on the erecting bed so that the rotating disk supports fixation with the housing.
Wherein, the driven pulley has multiple three projections, and the 3rd projection is uniformly arranged on the driven pulley and institute State belt contacts the week side of boss.
A kind of V belt translation tensioning apparatus of the present invention, rotated and connected by first power transmission shaft and the second driving shaft Connect, first power transmission shaft is fixedly connected with the rotating disk, then first power transmission shaft is inserted into described the first of the rotating disk Mounting hole, the central axis of first mounting hole and one, the pivot center interval of rotating disk pre-determined distance, the rotating disk Pivot center overlapped with the second driving shaft, the rotating disk turns an angle, the driven pulley with described first transmission Axle moves, and then the driven pulley changes with the driving wheel centre-to-centre spacing, realizes the tensioning of the belt, convenient that belt is opened Tight situation is adjusted in time, is improved the transmission efficiency of V belt translation, is extended the service life of belt.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of V belt translation tensioning apparatus of the present invention;
Fig. 2 is the structural representation of driving wheel of the present invention, driven pulley, belt and rotating disk;
Fig. 3 is the structural representation of the first power transmission shaft of the present invention, second driving shaft and driven pulley;
Fig. 4 is the structural representation of the first power transmission shaft and second driving shaft of the invention;
Fig. 5 is the front view of rotating disk of the present invention;
Fig. 6 is the rearview of rotating disk of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " length ", " width ", " on ", " under ", "front", "rear", The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on accompanying drawing institutes The orientation or position relationship shown, it is for only for ease of the description present invention and simplifies description, rather than instruction or the dress for implying meaning Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention System.In addition, in the description of the invention, " multiple " are meant that two or more, unless otherwise specifically defined.
It should be noted that the V belt translation tensioning apparatus in existing technology, typically uses two kinds of forms, one is setting A kind of support bar of adjustable distance, support bar one end connection driving wheel are counted, other end is connected with driven pulley, needed to skin When band is tensioned, the length of support bar is adjusted, and then changes the centre-to-centre spacing of driving wheel and driven pulley, realizes the tensioning of belt. But which is used, support bar moves the position of driven pulley, so as to cause the transmission system stress of driven pulley and its next stage Inequality, not only drive mechanism is complicated, can also influence power transmission effect and increase the abrasion of belt.The second is in belt Side sets tensioning wheel, and belt is tensioned by tensioning wheel.But using which, it is necessary to set extra driving to tensioning wheel Mechanism and cantilever supporting mechanism, and drive mechanism is needed outside V belt translation region, and then cause the compactness of tensioning apparatus not Height, complicated, space hold amount is big so that the stationarity and reliability of whole V belt translation reduce.Further, since driving wheel, The support stiffness of driven pulley and tensioning wheel is weaker, belt very easily occurs by fluctuation, when the normal pressure to belt is in ripple During peak, the excessive situation for excessively being compressed, easily causing the stuck damage of service life reduction, output motor of belt stress, when to belt Normal pressure when being in trough, belt stress is too small and then relaxation so that the decline of the stability and precision of V belt translation.
Fig. 1, Fig. 2 and Fig. 3 are referred to, the V belt translation tensioning apparatus 100 includes driving wheel 10, driven pulley 20, belt 30 With governor motion 40, the driving wheel 10 is oppositely arranged with the driven pulley 20, and the belt 30 is enclosed in the driving wheel 10 With the periphery of driven pulley 20, the governor motion 40 includes rotating disk 41, the first power transmission shaft 42 and second driving shaft 43, and described The central axis of two power transmission shaft 43 overlaps with the pivot center of rotating disk 41, and the rotating disk 41 has the first mounting hole 411, and described The axis of one mounting hole 411 to the pivot center of rotating disk 41 bias pre-determined distance, described one end of first power transmission shaft 42 with it is described from Driving wheel 20 is fixedly connected, and the other end of the first power transmission shaft 42 passes through first mounting hole 411, and with the second driving shaft 43 rotation connections, the driven pulley 20 rotates with the rotating disk 41, to change the driving wheel 10 and the driven pulley 20 it Between distance.It is appreciated that the V belt translation tensioning apparatus 100 can be used in the transmission system of all kinds of vehicles, especially Be for motorcycle, electric car, tricycle etc. two wheel or three-wheel small vehicles power assembly in.
In the present embodiment, the kind of drive of the belt driver is opening transmission, driving wheel 10 and described driven Wheel 20 is oppositely arranged, and is respectively positioned on the inner side of the belt 30.The madial wall of belt 30 and the driving wheel 10 and it is described from Driving wheel 20 is in close contact, and the driving wheel 10 rotates, and drives belt 30 to move, and then the driven pulley 20 is in the effect of frictional force Under, synchronously rotated with the driving wheel 10.In other embodiments, the kind of drive of the belt driver can be with It is twist belt drive or semidecussation transmission, to reach the technique effect essentially identical with the former.
In the present embodiment, the driven pulley 20 and the clamping of the first power transmission shaft 42, first power transmission shaft 42 with Neck is respectively equipped with the driven shaft, flat key is loaded in neck so that the driven pulley 20 and first power transmission shaft 42 It is relatively fixed.First power transmission shaft 42 is inserted in the mounting hole of the rotating disk 41, because the axis of the mounting hole is inclined With a certain distance from pivot center from the rotating disk 41, when the rotating disk 41 rotates, the driven pulley 20 is with first power transmission shaft 42 motions, and then the driven pulley 20 changes with the centre-to-centre spacing of driving wheel 10, realizes the tensioning to the belt 30.
In the present embodiment, first power transmission shaft 42 and the second driving shaft 43 are rotatablely connected, described second turn The axis of moving axis and the axis of the rotation of the rotating disk 41 overlap.First power transmission shaft 42 rotates with the rotating disk 41, I.e. described first power transmission shaft 42 moves in a circle around the axis of two rotary shaft, ensures first power transmission shaft 42 and described the Stable movement between two power transmission shafts 43, the rotation of the driven pulley 20 can be effectively passed on the second driving shaft 43.In order to Reduce first power transmission shaft 42 rotating disk 41 is caused to wear when rotating so that the hole of first mounting hole 411 Footpath changes, and influences belt 30 and is tensioned.Bearing is set between first power transmission shaft 42 and the rotating disk 41, and bearing can be Angular contact ball bearing, thrust ball bearing, self-aligning ball bearing, taper roll bearing, cylinder roller bearing etc., using self-aligning ball bearing as It is excellent.In addition, bearing can also set oil sealing close to the side of second driving shaft 43, oil sealing opening towards second driving shaft 43, When preventing that first power transmission shaft 42 from rotating with the second driving shaft 43, in oil leakage to the belt 30, institute is caused Belt 30 is stated to skid.
The present invention provides a kind of V belt translation tensioning apparatus, is rotated and connected by first power transmission shaft and the second driving shaft Connect, first power transmission shaft is fixedly connected with the rotating disk, then first power transmission shaft is inserted into described the first of the rotating disk Mounting hole, the central axis of first mounting hole and one, the pivot center interval of rotating disk pre-determined distance, the rotating disk Pivot center overlapped with the second driving shaft, the rotating disk turns an angle, the driven pulley with described first transmission Axle moves, and then the driven pulley changes with the driving wheel centre-to-centre spacing, realizes the tensioning of the belt, convenient that belt is opened Tight situation is adjusted in time, is improved the transmission efficiency of V belt translation, is extended the service life of belt.
Further, circumference of first power transmission shaft 42 away from described one end of driven pulley 20 has multiple first projections 421, circumference of the second driving shaft 43 close to described one end of rotating disk 41 has multiple second projections 431, and described first is raised 421 engage with the described second projection 431.As shown in Figure 3 and Figure 4, in the present embodiment, multiple first projections 421 are equal Even to be distributed in first power transmission shaft 42 circumferentially, multiple second projections 431 are evenly distributed on the second driving shaft 43 weeks To first rotary shaft and the second driving shaft 43 are gear shaft, first power transmission shaft 42 and the described second transmission At the drive connection of axle 43, first power transmission shaft 42 is provided with multiple first projections 421, and the second driving shaft 43 is provided with more Individual second projection 431, first projection 421 are intermeshed with the described second projection 431, the described first raised 421 Hes The cross sectional shape of second projection 431 can be involute profile, arc toothed and wedge-shaped, using involute as excellent, guarantee institute State the transmission stability between the first power transmission shaft 42 and the second driving shaft 43.
Further, the second driving shaft 43 has adapter sleeve 432, and the adapter sleeve 432 is positioned at the described second transmission Axle 43 is partially disposed in the adapter sleeve 432 close to described one end of rotating disk 41, first power transmission shaft 42, and described second is raised 431 are located at the madial wall of adapter sleeve 432.As shown in Figure 3 and Figure 4, in the present embodiment, first power transmission shaft 42 is outer Gear shaft, the second driving shaft 43 are inner gear shaft, and it is raised that the madial wall of adapter sleeve 432 is uniformly distributed multiple described second 431, first power transmission shaft 42 is partially loaded the adapter sleeve 432 so that first projection 421 and the described second projection 431 engagements, i.e., described first power transmission shaft 42 and the internal messing of second driving shaft 43, compact-sized, first projection 421 Relative sliding velocity is small between second projection 431 so that the rotation of first power transmission shaft 42 can be effectively passed to institute State second driving shaft 43.In other embodiments, can also be by first power transmission shaft 42 and the second driving shaft 43 Connected mode is set to external toothing, to reach essentially identical technique effect.
Further, the governor motion 40 also includes fixed seat 44, and the fixed seat 44 is fixed with the rotating disk 41 to be connected Connect, the fixed seat 44 has the second mounting hole 45, and first power transmission shaft 42 loads away from described one end of second driving shaft 43 Second mounting hole 45.As shown in Fig. 1, Fig. 5 and Fig. 6, in the present embodiment, the fixed seat 44 is logical with the rotating disk 41 Bolt connection is crossed, in order to prevent first power transmission shaft 42 away from described one end of second driving shaft 43 when rotating, due to stretching out The rotating disk 41 is too many, produces larger winding degree.Second mounting hole 45, first power transmission shaft are opened up in the fixed seat 44 42 one end ends away from the second driving shaft 43 load second mounting holes 45, first power transmission shaft 42 with it is described Bearing is set between second mounting hole 45, ensures that the fixed seat 44 carries out secure support to first power transmission shaft 42.
Further, the V belt translation tensioning apparatus 100 also includes housing 50, and the housing 50 has accommodating chamber, described Driving wheel 10 and driven pulley 20, and the belt 30 are contained in the accommodating chamber.As shown in figure 1, in present embodiment In, the housing 50 includes left housing and right shell, and left housing is bolted with right shell.When V belt translation tensioning apparatus 100 is installed, The driving wheel 10, the driven pulley 20 and the belt 30 are sequentially loaded into the left housing or right shell, then cover the right side of opposite side Shell or left housing so that the driving wheel 10, the driven pulley 20 and the belt 30 are contained in the described of the formation of housing 50 In accommodating chamber, when preventing that the belt 30 from working, impurity enters the belt 30 and the driving wheel 10, the belt 30 and institute Between stating driven pulley 20, aggravate the abrasion of the belt 30.
Further, the housing 50 has erecting bed 51, and the erecting bed 51 is located at institute in the accommodating chamber The madial wall of housing 50 is stated, the rotating disk 41 is adapted to the erecting bed 51, and is detachably connected.The rotating disk 41 offers arc Groove 412, the rotating disk 41 turn to predeterminated position, and bolt passes through the deep-slotted chip breaker 412, is fixed on the erecting bed 51 so that The rotating disk 41 supports fixation with the housing 50.The V belt translation tensioning apparatus 100 also includes baffle plate 60, and the baffle plate 60 is solid Surely the madial wall of housing 50 is connected to, and is contradicted with the rotating disk 41.As shown in Fig. 1, Fig. 5 and Fig. 6, in present embodiment In, the madial wall of housing 50 is recessed to form the erecting bed 51, and the erecting bed 51 is circle, geomery and the rotating disk 41 is identical, facilitates the rotating disk 41 to be arranged on the housing 50.The deep-slotted chip breaker 412 is offered on the rotating disk 41, it is described The quantity of deep-slotted chip breaker 412 is multiple, is uniformly distributed along the pivot center of the rotating disk 41.The rotating disk 41 rotates to default position Put, bolt passes through the deep-slotted chip breaker 412, the rotating disk 41 is pressed on the housing 50, avoids the V belt translation tensioning dress Put 100 at work, the rotating disk 41 produces relative rotation, and then causes the belt 30 to relax.It should be noted that in order to More preferably the rotating disk 41 is fixed, the baffle plate 60 is set in the outside of rotating disk 41, the baffle plate 60 is bending plate Part, described one end of baffle plate 60 and the bolt connection of housing 50, the other end contradict with the outer rim of rotating disk 41.
Further, the driven pulley 20 has multiple 3rd projections 21, and the 3rd projection 21 is uniformly arranged on described Driven pulley 20 contacts the week side of boss with the belt 30.In the present embodiment, multiple three are evenly arranged with the driven pulley 20 Projection 21, to increase the frictional force between the driven pulley 20 and the belt 30, improve transmission efficiency.In other embodiment In, the 3rd projection 21 can also be set on the driving wheel 10, reached essentially identical technique effect.
The above disclosed power for being only a kind of preferred embodiment of the present invention, the present invention can not being limited with this certainly Sharp scope, one of ordinary skill in the art will appreciate that realizing all or part of flow of above-described embodiment, and weighed according to the present invention Profit requires made equivalent variations, still falls within and invents covered scope.

Claims (9)

  1. A kind of 1. V belt translation tensioning apparatus, it is characterised in that
    The V belt translation tensioning apparatus includes driving wheel, driven pulley, belt and governor motion, the driving wheel and the driven pulley It is oppositely arranged, the belt is enclosed in the driving wheel and the driven pulley periphery, and the governor motion includes rotating disk, the first biography Moving axis and second driving shaft, the second driving shaft central axis overlap with the rotating disk pivot center, and the rotating disk has the One mounting hole, the first installation axially bored line bias pre-determined distance, described first power transmission shaft one end to the rotating disk pivot center It is fixedly connected with the driven pulley, the first power transmission shaft other end passes through first mounting hole, and is driven with described second Axle is rotatablely connected, and the driven pulley rotates with the rotating disk, to change the distance between the driving wheel and the driven pulley.
  2. 2. V belt translation tensioning apparatus as claimed in claim 1, it is characterised in that
    Circumference of first power transmission shaft away from described driven pulley one end has multiple first raised, and the second driving shaft is close The circumference of described rotating disk one end has multiple second raised, and described first raised engages with the described second projection.
  3. 3. V belt translation tensioning apparatus as claimed in claim 2, it is characterised in that
    The second driving shaft has adapter sleeve, and the adapter sleeve is located at the second driving shaft close to described rotating disk one end, institute State the first driveshaft section to be placed in the adapter sleeve, second projection is located at the adapter sleeve madial wall.
  4. 4. the V belt translation tensioning apparatus as described in right will go 1, it is characterised in that
    The governor motion also includes fixed seat, and the fixed seat is fixedly connected with the rotating disk, and the fixed seat has second Mounting hole, first power transmission shaft load second mounting hole away from described second driving shaft one end.
  5. 5. V belt translation tensioning apparatus as claimed in claim 4, it is characterised in that
    The V belt translation tensioning apparatus also includes housing, and the housing has accommodating chamber, the driving wheel and driven pulley, Yi Jisuo Belt is stated to be contained in the accommodating chamber.
  6. 6. V belt translation tensioning apparatus as claimed in claim 5, it is characterised in that
    The housing has erecting bed, and the erecting bed is located at the case inside wall in the accommodating chamber, described turn Disk is adapted to the erecting bed, and is detachably connected.
  7. 7. V belt translation tensioning apparatus as claimed in claim 6, it is characterised in that
    The V belt translation tensioning apparatus also includes baffle plate, and the baffle plate is fixedly connected on the case inside wall, and with described turn Disk contradicts.
  8. 8. V belt translation tensioning apparatus as claimed in claim 7, it is characterised in that
    The rotating disk offers deep-slotted chip breaker, and the rotating disk turns to predeterminated position, and bolt passes through the deep-slotted chip breaker, is fixed on described Erecting bed so that the rotating disk supports fixation with the housing.
  9. 9. V belt translation tensioning apparatus as claimed in claim 8, it is characterised in that
    The driven pulley has multiple three projections, and the 3rd projection is uniformly arranged on the driven pulley and the belt contacts The week side of boss.
CN201710865010.5A 2017-09-22 2017-09-22 Belt drive tensioner Active CN107606083B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710865010.5A CN107606083B (en) 2017-09-22 2017-09-22 Belt drive tensioner

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Application Number Priority Date Filing Date Title
CN201710865010.5A CN107606083B (en) 2017-09-22 2017-09-22 Belt drive tensioner

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CN107606083A true CN107606083A (en) 2018-01-19
CN107606083B CN107606083B (en) 2024-06-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019056290A1 (en) * 2017-09-22 2019-03-28 深圳市比思维科技有限公司 Belt drive tensioning apparatus
CN111594589A (en) * 2020-05-14 2020-08-28 王六闰 Belt or chain transmission device and motorcycle with same
CN111750053A (en) * 2020-08-03 2020-10-09 北京环境特性研究所 Synchronous belt transmission system of potentiometer angle measuring system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB450753A (en) * 1934-11-19 1936-07-20 Herbert Walker Swift An improved method of automatic tension control in belt and rope drives
US4620677A (en) * 1983-06-21 1986-11-04 Ashimori Industry Co., Ltd. Seat belt retractor
US5370585A (en) * 1993-01-27 1994-12-06 The Gates Rubber Company Eccentric type belt tensioner with cam operated damping means
CN1688472A (en) * 2002-08-22 2005-10-26 日本精工株式会社 Electric power steering apparatus
CN201068111Y (en) * 2007-03-20 2008-06-04 深圳市深铃车业有限公司 Electric bicycle triple-power speed-regulating device
CN102155274A (en) * 2010-11-16 2011-08-17 丛培伟 Continuously variable compression ratio engine and power output device thereof
CN102350664A (en) * 2011-10-26 2012-02-15 宁国市晨曦机械有限公司 Grinder assembly with main shaft eccentric device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB450753A (en) * 1934-11-19 1936-07-20 Herbert Walker Swift An improved method of automatic tension control in belt and rope drives
US4620677A (en) * 1983-06-21 1986-11-04 Ashimori Industry Co., Ltd. Seat belt retractor
US5370585A (en) * 1993-01-27 1994-12-06 The Gates Rubber Company Eccentric type belt tensioner with cam operated damping means
CN1688472A (en) * 2002-08-22 2005-10-26 日本精工株式会社 Electric power steering apparatus
CN201068111Y (en) * 2007-03-20 2008-06-04 深圳市深铃车业有限公司 Electric bicycle triple-power speed-regulating device
CN102155274A (en) * 2010-11-16 2011-08-17 丛培伟 Continuously variable compression ratio engine and power output device thereof
CN102350664A (en) * 2011-10-26 2012-02-15 宁国市晨曦机械有限公司 Grinder assembly with main shaft eccentric device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019056290A1 (en) * 2017-09-22 2019-03-28 深圳市比思维科技有限公司 Belt drive tensioning apparatus
CN111594589A (en) * 2020-05-14 2020-08-28 王六闰 Belt or chain transmission device and motorcycle with same
CN111750053A (en) * 2020-08-03 2020-10-09 北京环境特性研究所 Synchronous belt transmission system of potentiometer angle measuring system

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