CN110496401A - The trolley and cam derivation method of variable-distance track route are carried out using cam - Google Patents

The trolley and cam derivation method of variable-distance track route are carried out using cam Download PDF

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Publication number
CN110496401A
CN110496401A CN201910715621.0A CN201910715621A CN110496401A CN 110496401 A CN110496401 A CN 110496401A CN 201910715621 A CN201910715621 A CN 201910715621A CN 110496401 A CN110496401 A CN 110496401A
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CN
China
Prior art keywords
cam
gear
guide rail
wheel
trolley
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Pending
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CN201910715621.0A
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Chinese (zh)
Inventor
李哲
瞿发华
胡锦江
俞华
白广华
郭亮
龙德红
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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Priority to CN201910715621.0A priority Critical patent/CN110496401A/en
Publication of CN110496401A publication Critical patent/CN110496401A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26Details; Accessories
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26Details; Accessories
    • A63H17/262Chassis; Wheel mountings; Wheels; Axles; Suspensions; Fitting body portions to chassis
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H17/00Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
    • A63H17/26Details; Accessories
    • A63H17/266Movable parts other than toy figures, driven by the wheels

Abstract

A kind of trolley and cam derivation method carrying out variable-distance track route using cam, including bottom plate, bottom plate two sides are equipped with rear-wheel, bottom plate front end is equipped with front-wheel, bottom plate is equipped with support tube, and support tube is vertically arranged, and pulley is equipped at the top of support tube, draught line is wound on pulley, draught line one end is connect with clump weight, and clump weight is located in support tube, and the draught line other end is connect with winder, winder is coaxially connected with transmission shaft, transmission shaft respectively with back wheel driving gear and cam driving gear engaged transmission;Flank of cam is equipped with guiding groove, and guiding groove forms closed loop configuration along cam edge, is oriented in groove and is provided with cam follower, cam follower and guide rail are rotatablely connected, the guide rail other end is connect with foresteerage gear, and guide rail and guide rail bearing are cooperatively connected, and guide rail bearing is fixed on bottom plate.It is required according to route, cam contour appropriate can be designed, driven member is made to obtain arbitrary desired movement.

Description

The trolley and cam derivation method of variable-distance track route are carried out using cam
Technical field
The invention belongs to carbon-free vehicle technical field, in particular to a kind of trolley that variable-distance track route is carried out using cam And cam derivation method.
Background technique
Carbon-free trolley is the three wheeler using 4 joules of gravitional force as sole energy, with continuous obstacle function, it is Gravitional force is converted into mechanical energy and drives the device of carriage walking with this, realizes truly carbon-free.Traditional Carbon-free trolley has the disadvantages that by taking " a kind of carbon-free trolley " that 207445576 U of Chinese patent literature CN is recorded as an example
1, traditional link mechanism is only able to achieve equidistance motion;It can only realize the zigzag of carriage walking standard, and cannot Realize carriage walking variable diameter route;
2, the front-wheel steer of trolley does not design regulating device, therefore the steering sensitivity of front-wheel is not adjustable;
3, it is easy to produce speed difference between two rear-wheels of trolley, so that trolley is easy to be biased in form.
In addition, how to realize the setting of any route for carbon-free trolley, corresponding design scheme is proposed currently without people.
Summary of the invention
It is provided by the present invention to carry out variable-distance track route using cam in view of technical problem present in background technique Trolley and cam derivation method, required according to route, cam contour appropriate can be designed, obtain driven member arbitrary pre- Phase movement.
In order to solve the above-mentioned technical problem, this invention takes following technical solutions to realize:
A kind of trolley carrying out variable-distance track route using cam, including bottom plate, bottom plate two sides are equipped with rear-wheel, before bottom plate End is equipped with front-wheel, and bottom plate is equipped with support tube, and support tube is vertically arranged, and pulley is equipped at the top of support tube, is wound with traction on pulley Line, draught line one end are connect with clump weight, and clump weight is located in support tube, and the draught line other end is connect with winder, winder It is coaxially connected with transmission shaft, transmission shaft respectively with back wheel driving gear and cam driving gear engaged transmission;Back wheel driving gear For driving rear wheel, cam driving gear is for driving cam to rotate;
Flank of cam is equipped with guiding groove, and guiding groove forms closed loop configuration along cam edge, is oriented in groove and sets Be equipped with cam follower, cam follower and guide rail are rotatablely connected, and the guide rail other end is connect with foresteerage gear, guide rail with lead Rail support is cooperatively connected, and guide rail bearing is fixed on bottom plate.
In preferred scheme, the back wheel driving gear includes first gear and second gear, first gear and second Gear engagement;First gear is coaxially connected with transmission shaft, and second gear is coaxially connected by shaft and rear-wheel, and the shaft is logical It crosses bearing to connect with bearing spider, bearing spider is fixed on bottom plate.
In preferred scheme, the cam driving gear includes third gear and the 4th gear, third gear and the 4th Gear engagement;Third gear and transmission shaft are coaxially connected, and the 4th gear is connect by shaft with cam coaxial, and the shaft is logical Bearing is crossed to connect with bearing spider.
In preferred scheme, the foresteerage gear includes direction turning piece, and direction turning piece one end is connect with front fork, front fork and Front-wheel connection, front fork are fixed on front fork support base by bearing;The direction turning piece other end is slided by turning to adjustment block and guide rail Connection turns to adjustment block lower part and is equipped with slide bar, sliding slot is provided on direction turning piece, and slide bar is arranged through sliding slot.
In preferred scheme, the foresteerage gear is equipped with micro-adjusting mechanism, and micro-adjusting mechanism includes fine tuning seat, fine tuning Seat is mounted on guide rail by sliding block, and guide rail is equipped with microdrum fixed block, and microdrum fixed block is equipped with microdrum, microdrum Including rotation button and micrometric screw, the micrometric screw is arranged through microdrum fixed block, micrometric screw front end and fine tuning seat Connection, is connected through a screw thread between micrometric screw and rotation button;Micrometric screw is arranged in parallel with guide rail.
In preferred scheme, the fine tuning seat is equipped with frame, and lateral adjustments bar is provided through on frame, is laterally adjusted Pole is vertically arranged with guide rail, and lateral adjustments bar is arranged through adjustment block is turned to, and between lateral adjustments bar and steering adjustment block It is threadedly coupled.
In preferred scheme, the pulley is fixed on pulley support, and pulley support is located on support tube, and pulley includes Main wheel and accessory whorl, are coaxially disposed between main wheel and accessory whorl;Draught line can be arranged around main wheel or accessory whorl.
In preferred scheme, the cam follower in the guiding groove is bearing, the bearing and guiding groove Side wall fitting setting.
In preferred scheme, each described rear-wheel is correspondingly arranged a bearing spider, a first gear and one Second gear.
This patent can reach it is following the utility model has the advantages that
1. the present invention uses cam, flank of cam is equipped with guiding groove, is oriented to groove along cam edge and forms closed loop Structure is oriented in groove and is provided with cam follower, and cam follower and guide rail are rotatablely connected, and guide rail here can be understood as Push rod;The guide rail other end is connect with foresteerage gear, and foresteerage gear drives front-wheel steer, by designing different guiding Groove structure, to realize carriage walking difference path.
2. transmission shaft rotates, first gear rotation is driven, first gear and second gear engaged transmission, second gear pass through Shaft drives rear wheel;Each rear-wheel is correspondingly arranged a bearing spider, a first gear and a second gear.This Sample can reduce speed difference, and traditional carbon-free trolley drives two rear-wheels only with one group of gear, be easy to cause two in this way There is speed difference in a rear-wheel.
3. steering mechanism is equipped with micro-adjusting mechanism, the sensitivity of the adjustable front-wheel steer of micro-adjusting mechanism, to realize small The angle that vehicle turns to.
4. the present invention provides a kind of guiding grooves according to cam come the method that derives trolley distance, according to being travelled Route, be oriented to groove profile shape accordingly to derive source, displacement, equidistant S type moving line realized, to capture Traditional technical problem.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is trolley tomograph of the present invention;
Fig. 2 is enlarged drawing at A in Fig. 1;
Fig. 3 is trolley front view of the present invention;
Fig. 4 is enlarged drawing at B in Fig. 3;
Fig. 5 is trolley side view of the present invention;
Fig. 6 is enlarged drawing at C in Fig. 5;
Fig. 7 is that the present invention turns to adjustment block structural diagram;
Fig. 8 is trolley top view of the present invention;
Fig. 9 is moving of car mathematical model of the present invention;
Figure 10 is cam rise schematic diagram of the present invention;
Figure 11 is that the groove curve of cam of the present invention derives model;
Figure 12 is S type track route schematic diagram of the invention.
In figure: pulley 1, pulley support 3, support tube 4, cam 5, guiding groove 501, bearing spider 10, guide rail bearing 11, Rear-wheel 13, front fork support base 18, front fork 19, bottom plate 20, front-wheel 22, winder 24, transmission shaft 25, guide rail 30, fine tuning seat 31, cross To adjusting rod 32, fixing bolt 33, turn to adjustment block 34, slide bar 341, frame 35, direction turning piece 38, sliding slot 381, microdrum 39, Rotation button 391, micrometric screw 392, microdrum fixed block 41, first gear 61, second gear 62, third gear 63, the 4th tooth Wheel 64.
Specific embodiment
Preferred scheme is as shown in Figures 1 to 8, and a kind of trolley carrying out variable-distance track route using cam includes bottom plate 20,20 two sides of bottom plate are equipped with rear-wheel 13, and 20 front end of bottom plate is equipped with front-wheel 22, and bottom plate 20 is equipped with support tube 4, and support tube 4 is vertical It is arranged, pulley 1 is equipped at the top of support tube 4, is wound with draught line on pulley 1, draught line one end is connect with clump weight, and clump weight is located at In support tube 4, the draught line other end is connect with winder 24, and winder 24 and transmission shaft 25 are coaxially connected, and transmission shaft 25 is distinguished With back wheel driving gear and cam driving gear engaged transmission;Back wheel driving gear is for driving rear-wheel 13 to rotate, actuated by cams Device is for driving cam 5 to rotate;
5 side of cam is equipped with guiding groove 501, is oriented to groove 501 along 5 edge of cam and forms closed loop configuration, is oriented to Cam follower is provided in groove 501, cam follower and guide rail 30 are rotatablely connected, 30 other end of guide rail and front-wheel steer machine Structure connection, guide rail 30 and guide rail bearing 11 are cooperatively connected, and guide rail bearing 11 is fixed on bottom plate 20.Clump weight falls downwards, passes through Draught line drives winder 24 to rotate, and winder 24 is also known as starter, and the mainspring principle that principle is similar to toy car is the same, Winder 24 drives transmission shaft 25 to rotate, so that back wheel driving gear and cam driving gear starting.Guide rail bearing 11 It is fixed with sliding block 301, guide rail 30 and the cooperation of sliding block 301 are slided, to reduce the friction of guide rail 30.
Further, back wheel driving gear includes first gear 61 and second gear 62, first gear 61 and second gear 62 engagements;First gear 61 and transmission shaft 25 are coaxially connected, and second gear 62 is coaxially connected by shaft and rear-wheel 13, described Shaft is connect by bearing with bearing spider 10, and bearing spider 10 is fixed on the base plate 20.Transmission shaft 25 rotates, and drives the first tooth 61 rotation of wheel, 62 engaged transmission of first gear 61 and second gear, second gear 62 drive rear-wheel 13 to rotate by shaft.
Further, cam driving gear includes third gear 63 and the 4th gear 64, third gear 63 and the 4th gear 64 engagements;Third gear 63 and transmission shaft 25 are coaxially connected, and the 4th gear 64 is coaxially connected by shaft and cam 5, described Shaft is connect by bearing with bearing spider 10.Transmission shaft 25 rotates, and drives third gear 63 to rotate, third gear 63 and the 4th 64 engaged transmission of gear, the 4th gear 64 drive cam 5 to rotate by shaft.After cam 5 rotates, it is oriented to convex in groove 501 Wheel driven member is moved along guiding groove 501, since guiding groove 501 is irregular closed loop slot, to realize guide rail 30 It is moved forward and backward.
Further, foresteerage gear includes direction turning piece 38, and 38 one end of direction turning piece is connect with front fork 19, and front fork 19 is with before 22 connection of wheel, front fork 19 are fixed on front fork support base 18 by bearing;38 other end of direction turning piece by turn to adjustment block 34 with Guide rail 30 is slidably connected, and turns to 34 lower part of adjustment block and is equipped with slide bar 341, is provided with sliding slot 381 on direction turning piece 38, slide bar 341 passes through It is through at the setting of sliding slot 381.Guide rail 30 is moved forward and backward to be driven again, is driven steering adjustment block 34 mobile, is turned to 34 lower part of adjustment block Slide bar 341 correspondingly moves in the sliding slot 381 of direction turning piece 38, thus realize the rotation of direction turning piece 38, the rotation of direction turning piece 38 Front fork 19 is driven to rotate again, the final steering for realizing front-wheel 22.
Further, foresteerage gear is equipped with micro-adjusting mechanism, and micro-adjusting mechanism includes fine tuning seat 31, and fine tuning seat (31) is logical It crosses sliding block 301 to be mounted on guide rail 30, guide rail 30 is equipped with microdrum fixed block 41, and microdrum fixed block 41 is equipped with microdrum 39, microdrum 39 includes rotation button 391 and micrometric screw 392, and the micrometric screw 392 is set through microdrum fixed block 41 It sets, 392 front end of micrometric screw is connect with fine tuning seat 31, is connected through a screw thread between micrometric screw 392 and rotation button 391;Micrometer Screw rod 392 is arranged in parallel with guide rail 30.Micrometric screw 392 and 31 junction of fine tuning seat, fine tuning seat 31 are equipped with jack, micrometric screw The 392 front ends insertion jack setting, 31 side of fine tuning seat are equipped with fixing bolt 33, and the fixing bolt 33 is for fixing Micrometric screw 392.Rotate rotation button 391 so that 392 stretching motion of micrometric screw, micrometric screw 392 drive fine tuning seat 31 along Guide rail 30 slides.The principle of microdrum 39 is similar to micrometer.
Further, fine tuning seat 31 is equipped with frame 35, is provided through lateral adjustments bar 32, lateral adjustments on frame 35 Bar 32 is vertically arranged with guide rail 30, and lateral adjustments bar 32 is arranged through adjustment block 34 is turned to, and lateral adjustments bar 32 and steering are adjusted It is threadedly coupled between monolith 34.Lateral adjustments bar 32 is rotated, turning to adjustment block 34 can slide on rotation lateral adjustments bar 32, After the position change for turning to adjustment block 34, the sensitivity that front-wheel 22 turns to is changed correspondingly, and turns to spirit to realize and adjust front-wheel 22 The effect of sensitivity.
Further, pulley 1 is fixed on pulley support 3, and pulley support 3 is located on support tube 4, and pulley 1 includes main wheel And accessory whorl, it is coaxially disposed between main wheel and accessory whorl;Draught line can be arranged around main wheel or accessory whorl.The diameter of main wheel is greater than the straight of accessory whorl Diameter, when draught line is arranged around main wheel, 24 velocity of rotation of winder is fast, and correspondingly 13 velocity of rotation of rear-wheel is fast.
Further, the cam follower being oriented in groove 501 is bearing, the bearing and guiding 501 side wall of groove Fitting setting.Cam follower is that bearing plays the role of smaller friction.
Further, each rear-wheel 13 is correspondingly arranged 10, first gears 61 of a bearing spider and one second Gear 62.Speed difference can be reduced in this way, and traditional carbon-free trolley drives two rear-wheels only with one group of gear, is easy in this way Two rear-wheels are caused speed difference occur.
The cam derivation method of a kind of trolley carrying out variable-distance track route using cam proposed by the present invention, in conjunction with figure 9 to Figure 12 introduction derive step:
1, as shown in figure 9, by trolley mathematical model, wherein enabling the distance between axles of trolley is L;
30 length of guide rail is X;
The path point radius of curvature of S type track route is σ;
The distance for the center of circle O that 25 midpoint of transmission shaft corresponds to circular arc to radius of curvature is σ;
The vertical range at guide rail 30 and 22 center of front-wheel is a;
5 base radius of cam is R, cam rise is S;
The track of 25 midpoint of transmission shaft traveling is the path of S type track route, certain is put corresponding on S type track route For straight line intersection where radius of curvature and transmission shaft in point O, corresponding angle is θ;
2, according to trolley mathematicization model, mathematic(al) representation tan θ=L/ ρ, S=-a*tan θ can be listed;
3, as shown in Figure 10, the corresponding ordinate value of rise curve each point is all positive value, and curve is located above X-axis, is extracted The radius of curvature of numerous discrete points in run trace calculates corresponding rise value, then rise value is added the smallest rise value, i.e., The absolute value of median finds out the coordinate put on rise curve;" 2pi " expression a cycle shown in Figure 10, and " A ", " B ", " C " and " D " indicates four particular points in one cycle.Cam and cam follower are in A point contact, cam driven Part is in extreme lower position.When cam rotates clockwise, cam follower, will be by minimum under AB sections of cam profile of promotion Position A is pulled to extreme higher position B', and the motion process of cam follower is known as rise, and respective cams corner is known as rise movement Angle.When cam follower is contacted with cam profile BC sections, since BC sections is are the circular arc in the center of circle with cam axle center 0, so Cam follower will be stationary in extreme higher position, this process is referred to as far stopped.When cam follower and cam contour When the CD section contact of line, it returns to extreme lower position by extreme higher position again.Finally when cam follower is contacted with cam profile DA When, since DA sections is are the circular arc (basic circle) in the center of circle with cam axle center 0, so driven member is stationary in extreme lower position, this Process is stopped for complete rest.
4, number of contours strong point of the cam within the half period as shown in figure 11, is exported, is established out using 3 d modeling software convex Take turns threedimensional model;
5, in cam threedimensional model, enabling 5 rise of cam is S, cam point radius is r, radius of cam base-circle R.According to Theoretical knowledge has: r=S+R;
6, equal part cam profile corresponds to each point coordinate on contour line are as follows: X=r*cos α, Y=r*sin α;α is cam The angle of point radius and x positive axis;
7, when equal part number is enough, theoretical cam contour curve is more leveled off to by the curve that data point is fitted;
8, text file is made in the data obtained point, obtains cam using 3 d modeling software " data point importing " function Contour curve, and then establish out the threedimensional model of cam.The corresponding carriage walking route of the contour curve of cam is as shown in figure 12; SolidWorks or UG can be selected in the three-dimensional modeling software.

Claims (10)

1. a kind of trolley for carrying out variable-distance track route using cam, including bottom plate (20), bottom plate (20) two sides are equipped with rear-wheel (13), bottom plate (20) front end is equipped with front-wheel (22), it is characterised in that: bottom plate (20) is equipped with support tube (4), and support tube (4) is perpendicular To setting, it is equipped with pulley (1) at the top of support tube (4), is wound with draught line on pulley (1), draught line one end connect with clump weight, matches Pouring weight is located in support tube (4), and the draught line other end is connect with winder (24), winder (24) with transmission shaft (25) is coaxial connects Connect, transmission shaft (25) respectively with back wheel driving gear and cam driving gear engaged transmission;After back wheel driving gear is for driving (13) rotation is taken turns, cam driving gear is for driving cam (5) to rotate;
Cam (5) side is equipped with guiding groove (501), is oriented to groove (501) along cam (5) edge and forms closed loop configuration, Is provided with cam follower in guiding groove (501), cam follower and guide rail (30) are rotatablely connected, guide rail (30) other end with Foresteerage gear connection, guide rail (30) and guide rail bearing (11) are cooperatively connected, and guide rail bearing (11) is fixed on bottom plate (20).
2. the trolley according to claim 1 for carrying out variable-distance track route using cam, it is characterised in that: rear wheel drive Device includes first gear (61) and second gear (62), and first gear (61) is engaged with second gear (62);First gear (61) coaxially connected with transmission shaft (25), second gear (62) is coaxially connected by shaft and rear-wheel (13), and the shaft is logical It crosses bearing to connect with bearing spider (10), bearing spider (10) is fixed on bottom plate (20).
3. the trolley according to claim 2 for carrying out variable-distance track route using cam, it is characterised in that: actuated by cams Device includes third gear (63) and the 4th gear (64), and third gear (63) is engaged with the 4th gear (64);Third gear (63) coaxially connected with transmission shaft (25), the 4th gear (64) is coaxially connected by shaft and cam (5), and the shaft passes through Bearing is connect with bearing spider (10).
4. the trolley according to claim 1 for carrying out variable-distance track route using cam, it is characterised in that: front-wheel steer Mechanism includes direction turning piece (38), and direction turning piece (38) one end is connect with front fork (19), and front fork (19) is connect with front-wheel (22), front fork (19) it is fixed on front fork support base (18) by bearing;Direction turning piece (38) other end is by turning to adjustment block (34) and guide rail (30) it is slidably connected, turns to adjustment block (34) lower part and be equipped with slide bar (341), be provided with sliding slot (381), slide bar on direction turning piece (38) (341) it is arranged through sliding slot (381).
5. the trolley according to claim 4 for carrying out variable-distance track route using cam, it is characterised in that: front-wheel steer Mechanism is equipped with micro-adjusting mechanism, and micro-adjusting mechanism includes fine tuning seat (31), and fine tuning seat (31) is mounted on guide rail by sliding block (301) (30) on, guide rail (30) is equipped with microdrum fixed block (41), and microdrum fixed block (41) is equipped with microdrum (39), microdrum It (39) include rotation button (391) and micrometric screw (392), the micrometric screw (392) is set through microdrum fixed block (41) It sets, micrometric screw (392) front end is connect with fine tuning seat (31), is connected between micrometric screw (392) and rotation button (391) by screw thread It connects;Micrometric screw (392) is arranged in parallel with guide rail (30).
6. the trolley according to claim 5 for carrying out variable-distance track route using cam, it is characterised in that: fine tuning seat (31) frame (35) are equipped with, are provided through lateral adjustments bar (32) on frame (35), lateral adjustments bar (32) and guide rail (30) it is vertically arranged, lateral adjustments bar (32) is arranged through adjustment block (34) are turned to, and lateral adjustments bar (32) and steering adjust Block is threadedly coupled between (34).
7. the trolley according to claim 1 for carrying out variable-distance track route using cam, it is characterised in that: pulley (1) It is fixed on pulley support (3), pulley support (3) is located on support tube (4), and pulley (1) includes main wheel and accessory whorl, main wheel and secondary It is coaxially disposed between wheel;Draught line can be arranged around main wheel or accessory whorl.
8. the trolley according to claim 1 for carrying out variable-distance track route using cam, it is characterised in that: guiding groove (501) cam follower in is bearing, and the bearing is bonded setting with guiding groove (501) side wall.
9. the trolley according to claim 1 for carrying out variable-distance track route using cam, it is characterised in that: after each Wheel (13) is correspondingly arranged a bearing spider (10), a first gear (61) and a second gear (62).
10. being pushed away according to claim 1 to the cam for the trolley for carrying out variable-distance track route described in 9 any one using cam Guiding method, it is characterised in that include the following steps:
1) by trolley mathematical model, wherein enabling the distance between axles of trolley is L;
Guide rail (30) length is X;
The path point radius of curvature of S type track route is σ;
The distance for the center of circle O that transmission shaft (25) midpoint corresponds to circular arc to radius of curvature is σ;
The vertical range at guide rail (30) and front-wheel (22) center is a;
Cam (5) base radius is R, cam rise is S;
The track of transmission shaft (25) midpoint traveling is the path of S type track route, certain puts corresponding song on S type track route For straight line intersection where rate radius and transmission shaft in point O, corresponding angle is θ;
2) according to trolley mathematicization model, mathematic(al) representation tan θ=L/ ρ, S=-a*tan θ can be listed;
3) the corresponding ordinate value of rise curve each point is all positive value, and curve is located above X-axis, extract in run trace it is numerous from The radius of curvature of scatterplot calculates corresponding rise value, then rise value is added the smallest rise value, the i.e. absolute value of median, Find out the coordinate put on rise curve;
4) number of contours strong point of the export cam within the half period, establishes out cam threedimensional model using 3 d modeling software;
5) in cam threedimensional model, enable that cam (5) rise is S, cam point radius is r, radius of cam base-circle R;According to reason Have by knowledge: r=S+R;
6) equal part cam profile corresponds to each point coordinate on contour line are as follows: X=r*cos α, Y=r*sin α;α is cam point half The angle of diameter and x positive axis;
7) when equal part number is enough, theoretical cam contour curve is more leveled off to by the curve that data point is fitted;
8) text file is made in the data obtained point, obtains the profile of cam using 3 d modeling software " data point importing " function Curve, and then establish out the threedimensional model of cam.
CN201910715621.0A 2019-08-05 2019-08-05 The trolley and cam derivation method of variable-distance track route are carried out using cam Pending CN110496401A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN111870969A (en) * 2020-07-24 2020-11-03 三峡大学 Carbon-free trolley track burning device and method
CN112190960A (en) * 2020-09-04 2021-01-08 三峡大学 Spiral groove type carbon-free trolley steering mechanism and using method
CN113230669A (en) * 2021-06-03 2021-08-10 江汉大学 Carbon-free potential energy trolley running track control method

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