CN104455284A - Mechanism for making forward rotation and backward rotation of output shaft automatically switched and making number of same-direction revolutions adjustable - Google Patents

Mechanism for making forward rotation and backward rotation of output shaft automatically switched and making number of same-direction revolutions adjustable Download PDF

Info

Publication number
CN104455284A
CN104455284A CN201410583725.8A CN201410583725A CN104455284A CN 104455284 A CN104455284 A CN 104455284A CN 201410583725 A CN201410583725 A CN 201410583725A CN 104455284 A CN104455284 A CN 104455284A
Authority
CN
China
Prior art keywords
output shaft
shaft
input
wheel
adjustable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410583725.8A
Other languages
Chinese (zh)
Inventor
陈海真
张学林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University of Technology
Original Assignee
Shandong University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong University of Technology filed Critical Shandong University of Technology
Priority to CN201410583725.8A priority Critical patent/CN104455284A/en
Publication of CN104455284A publication Critical patent/CN104455284A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H37/00Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2712/00Mechanisms for changing direction
    • F16H2712/02Automatic control, e.g. for an alternating movement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)

Abstract

本发明涉及机械传动技术领域,特别是一种自动实现输出轴正反转转换且同向转数可调的机构。其特征在于:包括输入和输出锥摩擦轮、左右轮盘、左右压簧、左右压簧调节螺母、左右端面凸轮、双联滑移齿轮,其中,端面凸轮有薄面和厚面,薄面和厚面用过渡斜面连接;输入锥摩擦轮与轮盘用成形连接连为一体。本发明通过两个端面凸轮薄面、厚面与两个轮盘相靠实现输出轴的正转和反转转换;端面凸轮过渡斜面长度的大小可控制正反转换向时间间隔,并控制换向前减速和换向后增速的快慢;调节齿轮的传动比可调节输出轴同向连续正反转运转的转数,本机构无冲击,用于不用电机而输出轴又需自动实现正反转控制的场合。

The invention relates to the technical field of mechanical transmission, in particular to a mechanism that automatically realizes forward and reverse conversion of an output shaft and whose number of revolutions in the same direction is adjustable. It is characterized in that it includes input and output cone friction wheels, left and right wheel discs, left and right compression springs, left and right compression spring adjustment nuts, left and right end cams, and double sliding gears, wherein the end cams have thin surfaces and thick surfaces, thin surfaces and thick surfaces It is connected with a transition slope; the input cone friction wheel and the wheel disc are connected as a whole with a formed connection. In the present invention, the forward rotation and reverse rotation of the output shaft are realized through the contact between the thin and thick surfaces of the two end cams and the two wheel discs; The speed of speed up after deceleration and reversing; adjusting the transmission ratio of the gear can adjust the number of revolutions of the output shaft running forward and reverse in the same direction continuously. occasions.

Description

A kind of automatically realize output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way
Technical field
The present invention relates to technical field of mechanical transmission, particularly a kind of automatically realize output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way.
Background technique
Aerobic exercise can temper cardiopulmonary, enhancing circulatory function, burn fat, increasing vital capacity, prevention diabetes, reduces cardiopathic generation.If want to be lost weight by aerobic exercise, can select the low exercise intensity to moderate, extend run duration simultaneously, the heat that this method consumes is more.A kind of sports items, espespecially comprise free-hand or with the motion of apparatus, can strengthen muscle power, increase endurance, raising cardio-pulmonary function, thus make hale and hearty.Swim, hurry up, jog, by bike etc. be all the good option of aerobic exercise.
Current atmospheric pollution is serious, and people more advocate indoor body-building, and all gymnastic apparatus arise at the historic moment, as exercycle, running machine etc.If people can do some housework again while indoor body-building, be achieve many things at one stroke.The Conversion of Energy that body-building can be consumed is that mechanical energy utilizes for it, as health washing machine, washes some light clothes by bike while body-building.In current practical application, output shaft clockwise and anticlockwise conversion is main leans on the bevel gear of motor positive and inverse or manual deciliter outer gearing to realize.Therefore, must design a kind of automatically realize output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way.
Summary of the invention
For the defect existed in above-mentioned prior art, technical problem to be solved by this invention be to provide a kind of automatically realize output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way.Wherein, output shaft to operate after several turns reversion running a few week more continuously, and all numbers of running continuously in the same way can adjust.Concrete technological scheme of the present invention is as follows:
A kind of automatically realize output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way, comprise input shaft, jack shaft, output shaft, output cone friction wheel, two, left and right wheel disc, two, left and right input cone friction wheel, two, left and right stage clip, two, left and right stage clip adjusting nut, double crosslinking sliding gear, cam on left end face, right side cam, two straight toothed spur gears, it is characterized in that: the cam on left end face on described mechanism jack shaft and right side cam have thick face portion, sake part, thickness face portion intermediate incline connects, and sake part and thick face portion symmetry; On described mechanism input shaft two input cone friction wheels are all connected with shaping with two, left and right wheel disc and are connected as a single entity, and use dive key is connected with input shaft respectively again; On described mechanism input shaft, two stage clips in left and right press left and right wheel disc and left and right stage clip adjusting nut, the installation symmetrical relative to output shaft of left and right stage clip adjusting nut; Two, the left and right end cam of described mechanism is near two, the left and right on input shaft wheel disc, and two end cams claim to arrange relative to output shaft, are arranged on jack shaft, and the sake part of left and right end cam and thick face portion positioned opposite; Described mechanism by end cam sake, thick bore friction wheel with wheel disc by the input realized on input shaft and bore friction wheel and engage with output or be separated, and then the forward or reverse of automatic control output shaft; Described mechanism controls clockwise and anticlockwise interval turn around time by the size of end cam intermediate incline length, and determines the speed of commutation front reduction gear and the rear speedup of commutation; Described mechanism along the slippage of axle left and right, changes the revolution that velocity ratio regulation output axle rotates and reverse in the same way continuously by double crosslinking sliding gear on input shaft.
The advantage that the present invention has than prior art:
1. the present invention is a kind of realizes output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way automatically, adopt thick of end cam or sake with wheel disc mutually by automatically realizing output shaft clockwise and anticlockwise conversion, can be used for the occasion not using motor and need automatically to realize output shaft clockwise and anticlockwise control, as health washing machine (adopting the body-building that tramps with one's feet);
2. the present invention is a kind of realizes output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way automatically, controls output shaft clockwise and anticlockwise interval turn around time, for different demands by the size of end cam intermediate incline length;
3. the present invention is a kind of realizes output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way automatically, and after can making output shaft commutation front reduction gear to zero-sum commutation by end cam intermediate incline, speed is increased to maximum by zero, avoids impact when commutating;
4. the present invention is a kind of realizes output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way automatically, by left and right input cone friction wheel and defeated cone friction wheel on input shaft joint or be separated the conversion realizing clockwise and anticlockwise, can engage under different rotating speeds or be separated, slow down impact;
5. the present invention is a kind of realizes output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way automatically, the revolution of the continuous in the same way clockwise and anticlockwise running of regulation output axle is carried out by the velocity ratio of adjusting gear, to be applicable to, to the requirement of different revolution, increase using scope, have a wide range of applications promotional value.
Accompanying drawing explanation
In order to understand the present invention better, be described further below in conjunction with accompanying drawing;
Fig. 1 be the present invention a kind of automatically realize output shaft clockwise and anticlockwise conversion and the general structure schematic diagram of the mechanism that revolution is adjustable in the same way;
Fig. 2 is the A-A generalized section of input cone friction wheel and wheel disc attachment portion;
Fig. 3 is the plan view of double crosslinking sliding gear;
Fig. 4 is the left view of double crosslinking sliding gear;
Fig. 5 is the graphics of cam on left end face;
Fig. 6 is the graphics of right side cam.
Embodiment
Below by accompanying drawing, the invention will be further described.As a kind of in Fig. 1 the present invention automatically realize output shaft clockwise and anticlockwise conversion and the mechanism that revolution is adjustable in the same way, comprise input shaft 1, left stage clip adjusting nut 2, left stage clip 3, left dive key 4, left wheel disk 5, left input cone friction wheel 6, export cone friction wheel 7, output shaft 8, right input cone friction wheel 9, right wheel disk 10, right dive key 11, right stage clip 12, right stage clip adjusting nut 13, double crosslinking sliding gear 14, double crosslinking sliding gear dive key 15, jack shaft 16, right straight toothed spur gear 17, left straight toothed spur gear 18, right side cam 19, cam on left end face 20, jack shaft left bearing 21, jack shaft right bearing 22, input shaft left bearing 23, input shaft right bearing 24, output shaft bearing 25, it is characterized in that: two wheel discs 5 on input shaft 1, 10 input bore friction wheel 6 with two, left and right, 9 to connect with shaping and are connected as a single entity, as shown in Figure 2, use dive key 4 respectively again, 11 are connected with input shaft 1, on input shaft 1, two stage clips 3,12 in left and right press left and right wheel disc 5,10 and left and right stage clip adjusting nut 2,13, and left and right stage clip adjusting nut 2,13 is arranged symmetrically with relative to output shaft 8, is arranged on input shaft 1, cam on left end face 20 on jack shaft 16 and right side cam 19 are connected with jack shaft 16 with key respectively, and thick is positioned opposite with sake, and relative to the symmetrical installation of output shaft 8, end cam 19,20 with sake or thick near two, the left and right on input shaft 1 wheel disc 5,10, double crosslinking sliding gear (14) dive key (15) is connected with input shaft (1), export cone friction wheel 7 key to be connected with output shaft 8.
Working principle of the present invention is as follows: cam on left end face 20 sake is near the left wheel disk 5 on input shaft 1, left input cone friction wheel 6 on input shaft 1 is bored friction wheel 7 with the output on output shaft 8 and is compressed, output shaft 8 rotates forward, now, thick of right side cam 19 is near the right wheel disk 10 on input shaft 1, and the right input cone friction wheel 9 on input shaft 1 is bored friction wheel 7 with the output on output shaft 8 and is separated; When the sake of right side cam 19 is close to the right wheel disk 10 on input shaft 1, right input cone friction wheel 9 on input shaft 1 is bored friction wheel 7 with the output on output shaft 8 and is compressed, output shaft 8 reverses, now, the thick face of cam on left end face 20 is close to the left wheel disk 5 on input shaft 1, and left input cone friction wheel 6 is bored friction wheel 7 with the output on output shaft 8 and is separated; When the contact of incline plane of left wheel disk 5 and right wheel disk 10 and cam on left end face 20 and right side cam 19, then left input cone friction wheel 6 and the right input cone sassafras 9 that rubs all is bored friction wheel 7 and is separated with exporting, and now output shaft 8 reduces speed now, until speed is zero; After the inclined-plane of end cam 20,19 crossed by left and right wheel disc 5,10, output shaft 8 realizes rotating forward reversion conversion; By regulating left and right stage clip adjusting nut 2,13, on adjustable input shaft 1, the pressure between friction wheel 7 is bored in the input output of boring on friction wheel 6,9 and output shaft 8 of two, left and right; By the double crosslinking sliding gear 14 on mobile input shaft 1, can the velocity ratio of adjusting gear, and then regulation output axle 8 rotates and reverse the revolution of running in the same way continuously.

Claims (4)

1.一种自动实现输出轴正反转转换且同向转数可调的机构,包括输入轴(1)、中间轴(16)、输出轴(8)、输出锥摩擦轮(7)、左右轮盘(5)(10)、左右输入锥摩擦轮(6)(9)、左右导向平键(4)(11)、左右压簧(3)(12)、左右压簧调节螺母(2)(13)、双联滑移齿轮(14)、双联滑移齿轮导向平键(15)、左端面凸轮(20)、右端面凸轮(19),其特征在于:所述机构输入轴(1)上的两个轮盘(5)(10)与两个输入锥摩擦轮(6)(9)都用成形连接连为一体,又分别用导向平键(4)(11)与输入轴(1)相连;所述机构输入轴(1)上的左右压簧(3)(12)紧压左右轮盘(5)(10)和左右压簧调节螺母(2)(13);所述机构中间轴(16)上的左端面凸轮(20)和右端面凸轮(19)的薄面或厚面紧靠输入轴(1)上的两个轮盘(5)(10);所述机构端面凸轮(20)(19)过渡斜面的长度大小可以控制输出轴(8)正反转换向时间间隔,并决定换向前减速和换向后增速的快慢;所述机构轮盘(5)(10)带动输入锥摩擦轮(6)(9)沿输入轴(1)左右滑移,实现输入轴(1)上左右输入锥摩擦轮(6)(9)与输出轴(8)的输出锥摩擦轮(7)的接合或分离,从而实现输出轴(8)的正转和反转转换;所述机构通过移动双联滑移齿轮(14),改变啮合传动比来调整输出轴(8)同向运转的转数。1. A mechanism that automatically realizes the forward and reverse conversion of the output shaft and the number of rotations in the same direction is adjustable, including the input shaft (1), the intermediate shaft (16), the output shaft (8), the output cone friction wheel (7), the left and right Wheel disc (5) (10), left and right input cone friction wheels (6) (9), left and right guide flat keys (4) (11), left and right compression springs (3) (12), left and right compression spring adjustment nuts (2) (13), double sliding gear (14), double sliding gear guide flat key (15), left end face cam (20), right end face cam (19), it is characterized in that: the mechanism input shaft (1 ) on the two wheel discs (5) (10) and the two input cone friction wheels (6) (9) are connected as a whole with the forming connection, and respectively with the guide flat key (4) (11) and the input shaft ( 1) connected; the left and right stage clips (3) (12) on the input shaft (1) of the mechanism tightly press the left and right wheel discs (5) (10) and the left and right stage clip adjustment nuts (2) (13); the mechanism The thin or thick faces of the left end cam (20) and the right end cam (19) on the intermediate shaft (16) are close to the two wheels (5) (10) on the input shaft (1); (20)(19) The length of the transition bevel can control the forward and reverse conversion time interval of the output shaft (8), and determine the speed of deceleration before commutation and speed up after commutation; the mechanism wheel (5)(10 ) drives the input cone friction wheel (6) (9) to slide left and right along the input shaft (1) to realize friction between the left and right input cone friction wheels (6) (9) on the input shaft (1) and the output cone of the output shaft (8) The engagement or disengagement of the wheel (7), thereby realizing the forward rotation and reverse rotation conversion of the output shaft (8); the mechanism adjusts the output shaft (8) at the same time The number of revolutions to run. 2.根据权利要求1所述的一种自动实现输出轴正反转转换且同向转数可调的机构,其特征在于:两个端面凸轮(20)(19),都具有厚面部分、厚面部分和过渡斜面部分,厚面与薄面对称。2. A mechanism for automatically realizing forward and reverse conversion of the output shaft and adjustable rotation speed in the same direction according to claim 1, characterized in that: two end face cams (20) (19) have thick-faced parts, The thick surface part and the transition bevel part, the thick surface and the thin surface are symmetrical. 3.根据权利要求1所述的一种自动实现输出轴正反转转换且同向转数可调的机构,其特征在于:左端面凸轮(20)和右端面凸轮(19)的薄面、厚面相对布置,且相对于输出轴(8)左右对称安装在中间轴(16)上。3. A mechanism that automatically realizes the forward and reverse conversion of the output shaft and the number of rotations in the same direction is adjustable according to claim 1, characterized in that: the left end cam (20) and the right end cam (19) have a thinner, thicker surface. The faces are oppositely arranged, and are mounted symmetrically on the intermediate shaft (16) with respect to the output shaft (8). 4.根据权利要求1所述的一种自动实现输出轴正反转转换且同向转数可调的机构,其特征在于:左调节螺母(2)和右调节螺母(13)相对于输出轴(8)左右对称,安装在输入轴(1)上。4. A mechanism that automatically realizes the forward and reverse conversion of the output shaft and the number of revolutions in the same direction is adjustable according to claim 1, characterized in that: the left adjustment nut (2) and the right adjustment nut (13) are relative to the output shaft (8) Left-right symmetrical, installed on the input shaft (1).
CN201410583725.8A 2014-10-27 2014-10-27 Mechanism for making forward rotation and backward rotation of output shaft automatically switched and making number of same-direction revolutions adjustable Pending CN104455284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410583725.8A CN104455284A (en) 2014-10-27 2014-10-27 Mechanism for making forward rotation and backward rotation of output shaft automatically switched and making number of same-direction revolutions adjustable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410583725.8A CN104455284A (en) 2014-10-27 2014-10-27 Mechanism for making forward rotation and backward rotation of output shaft automatically switched and making number of same-direction revolutions adjustable

Publications (1)

Publication Number Publication Date
CN104455284A true CN104455284A (en) 2015-03-25

Family

ID=52901829

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410583725.8A Pending CN104455284A (en) 2014-10-27 2014-10-27 Mechanism for making forward rotation and backward rotation of output shaft automatically switched and making number of same-direction revolutions adjustable

Country Status (1)

Country Link
CN (1) CN104455284A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105057713A (en) * 2015-09-11 2015-11-18 苏州农业职业技术学院 Lathe tailstock refit mechanism
CN105090492A (en) * 2015-09-11 2015-11-25 苏州农业职业技术学院 Reciprocating start and stop mechanism driven by elastic potential energy
CN105090389A (en) * 2015-09-11 2015-11-25 苏州农业职业技术学院 Manually-operated single-period movement mechanism
CN105114554A (en) * 2015-09-11 2015-12-02 苏州农业职业技术学院 Start-stop mechanism of working feed and rapid return
CN105114553A (en) * 2015-09-11 2015-12-02 苏州农业职业技术学院 Working feed quick return motion mechanism controlled by spring oscillating bar
CN110176832A (en) * 2019-06-11 2019-08-27 李祖渊 A kind of motor rotation conversion equipment
CN110960908A (en) * 2019-12-03 2020-04-07 宁波大学 Underground sewage treatment device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189730920A (en) * 1897-12-31 1898-11-05 Samuel Edward Bagshaw An Improved Differential-speed Driving Gear for Motor-cars and other Machinery.
CN201099762Y (en) * 2007-10-24 2008-08-13 孙洪孟 Energy-saving body-building washing machine
CN201722518U (en) * 2010-07-09 2011-01-26 石河子大学 Body-building washing machine
CN202193982U (en) * 2011-08-08 2012-04-18 黎林 Washing machine
CN102926162A (en) * 2011-08-08 2013-02-13 黎林 Washing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189730920A (en) * 1897-12-31 1898-11-05 Samuel Edward Bagshaw An Improved Differential-speed Driving Gear for Motor-cars and other Machinery.
CN201099762Y (en) * 2007-10-24 2008-08-13 孙洪孟 Energy-saving body-building washing machine
CN201722518U (en) * 2010-07-09 2011-01-26 石河子大学 Body-building washing machine
CN202193982U (en) * 2011-08-08 2012-04-18 黎林 Washing machine
CN102926162A (en) * 2011-08-08 2013-02-13 黎林 Washing machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105057713A (en) * 2015-09-11 2015-11-18 苏州农业职业技术学院 Lathe tailstock refit mechanism
CN105090492A (en) * 2015-09-11 2015-11-25 苏州农业职业技术学院 Reciprocating start and stop mechanism driven by elastic potential energy
CN105090389A (en) * 2015-09-11 2015-11-25 苏州农业职业技术学院 Manually-operated single-period movement mechanism
CN105114554A (en) * 2015-09-11 2015-12-02 苏州农业职业技术学院 Start-stop mechanism of working feed and rapid return
CN105114553A (en) * 2015-09-11 2015-12-02 苏州农业职业技术学院 Working feed quick return motion mechanism controlled by spring oscillating bar
CN105090389B (en) * 2015-09-11 2017-06-06 苏州农业职业技术学院 A kind of manually operated monocyclic-start mechanism
CN105114554B (en) * 2015-09-11 2018-05-08 苏州农业职业技术学院 A kind of start-stop mechanism of work into rewind
CN110176832A (en) * 2019-06-11 2019-08-27 李祖渊 A kind of motor rotation conversion equipment
CN110960908A (en) * 2019-12-03 2020-04-07 宁波大学 Underground sewage treatment device

Similar Documents

Publication Publication Date Title
CN104455284A (en) Mechanism for making forward rotation and backward rotation of output shaft automatically switched and making number of same-direction revolutions adjustable
CN104279273A (en) Mechanism for efficiently and automatically realizing forward and reverse rotation conversion of output shaft
JP6577600B2 (en) Conversion device from reciprocating linear motion to unidirectional circular motion and vehicle using the device
CN201705873U (en) Centrifugal segmental gear chain type continuously variable transmission
TWI406653B (en) Wheel module and wheelchair using the same
CN104527914B (en) Stepless transmission bicycle applying same
CN110439982B (en) A connecting rod tooth meshing continuously variable transmission
CN101020314A (en) Electric cord driver for artificial joint
CN207728823U (en) A kind of friction type stepless speed changer
CN111895068A (en) A rack and pinion pair with variable transmission clearance characteristics and automobile steering gear
CN217294811U (en) Bicycle lever drive speed change system and bicycle
CN203627753U (en) The commutator of the reversing main shaft mechanism of the circulating forward and reverse variable speed vacuum compressor
CN210027794U (en) A multi-link bicycle stepless speed change device
CN211918923U (en) High transmission ratio stepless speed changer for bicycle
CN201670329U (en) High-efficiency bicycle
CN204794536U (en) In put formula second grade variable speed dynamo
CN209511040U (en) Electric roller formula variable speed assembly for electric vehicle
CN104118519B (en) A kind of high efficiency driver apparatus
CN207999484U (en) Friction type stepless speed changer
CN107061652B (en) Stepless speed change device
CN104482150A (en) Automatic output shaft forward-reverse switching mechanism
CN1258461C (en) Electric bicycle pedal force detection device
CN2883792Y (en) Driving gear able to change reiciprocation movement into rotary movement
CN105114575B (en) Beat is to cone disk type stepless speed change device
CN206130071U (en) Oil recovery well is stepless speed control device for screw rod

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150325

WD01 Invention patent application deemed withdrawn after publication