The carbon-free dolly of displacement obstacle detouring of serpentine walking
Technical field
The utility model relates to a kind of carbon-free dolly of displacement obstacle detouring of serpentine walking, belongs to green carbon-free dolly field.
Background technology
Current carbon-free dolly, all be based under national engineering training integration capability contest background design produced, the contest exercise question is: design and a kind of gravitional force is converted to mechanical energy, and can be used to the device that drives carriage walking and turn to, carbon-free dolly adopts tricycle structure, the steering front wheel maximum outside diameter is not less than Φ 30mm, and loading an appearance and size on dolly is the solid cylinder shaped steel mass processed that Φ 60mm * 20mm and quality are not less than 400g.(publication number: the barrier that CN102266671A) the carbon-free dolly of the disclosure can automatically be avoided arranging on racing track when moving ahead is (at interval of 1 meter for Chinese patent application, place the elastic barrier pole of diameter 20mm, a high 200mm), designed carbon-free dolly is to give under 1 meter of set a distance the walking of having placed obstacles, i.e. spacing execution cycle property " S " walking; If the spacing of barrier is changed, dolly just can not be realized the walking of obstacle thing, there will be and touches stake, and this just makes the designer have to change steering mechanism and wheel size even will redesign dolly; Such dolly is limited to when promotion and application, there is no practical popularization significance.
Summary of the invention
The purpose of this utility model is to be to provide under a kind of condition changing obstacle distance, the carbon-free dolly of displacement obstacle detouring of the serpentine walking of complete independently serpentine obstacle detouring walking.
Technical solution
The utility model comprises: the displacement track turns to micro-tensioning system and power conversion drive system.
The displacement track turns to micro-tensioning system to comprise: driven wheel, be connected to coaxial fine-tuning crank with it, the Spatial Sphere bearing is connected and fixed by bolt and fine-tuning crank, rocking bar micro-adjusting mechanism two ends are connected with Spatial Sphere bearing and Spatial Sphere bearing respectively, the Spatial Sphere bearing is connected with cross bar, cross bar is fixed on front-wheel support, and front-wheel is installed on front-wheel support.
The power conversion drive system comprises: driven wheel and reel all are installed on driving shaft, driven wheel and driven gear engagement, driving wheel is installed on driven gear shaft, driving wheel is coaxial with driven pulley, fixed pulley is fixed on the fixed pulley support of little car bottom plate, and the potential energy mass is fixed on reel by cotton rope.
Described fine-tuning crank is fixed by screws in the driven wheel upper hopper chute.
Described rocking bar micro-adjusting mechanism comprises: the first rocking bar, the second rocking bar, the first rocking bar is connected by positive and negative double end fine setting screw rod with the second rocking bar, the first hold-down nut, the second hold-down nut, positive and negative double end fine setting screw rod, the first rocking bar is connected with crank, on the second rocking bar, cross bar is installed, the first rocking bar is provided with the first hold-down nut, and the second rocking bar is provided with the second hold-down nut.
The utility model is when the car load general arrangement design, the potential energy that weight block descends passes to roll by fixed pulley, the engagement of driving gear on roll and driven gear, distribute to driving wheel by driving force, makes dolly wheel when turning to obtain speed and assurance turns to steadily.Steering mechanism adopts spatial crank-rocker mechanism.Roll passes to crank by gear mechanism by driving force, drive the rocking bar swing by connecting rod (kinematic pair at connecting rod two ends is ball pivot) again, because front-wheel and rocking bar are fixed with one, when dolly advances, front-wheel swing property performance period just around stake, when obstacle distance changes, adjust and change obstacle spacing (within 900mm-1100mm) by fine setting endplay device and fine-tuning crank, complete serpentine walking between the different spacing barrier.The carbon-free dolly of design has good application and popularization value like this.Exploration and the exploitation to " carbon-free " theory, to the hope of following " carbon-free ".Dolly is skillfully constructed, and has taken into full account the problems such as outward appearance and cost under the requirement of complete design, facilitates later expansion and further exploitation.
The accompanying drawing explanation
Fig. 1 is the utility model top view;
The front view that Fig. 2 is Fig. 1;
Fig. 3 is the carbon-free vehicle structure schematic diagram of the utility model;
Fig. 4 is the carbon-free dolly of the utility model automatic traveling crane schematic diagram under the gravitional force effect;
Fig. 5 is the utility model micro-adjusting mechanism schematic diagram.
The specific embodiment
As shown in Figure 1, 2, vehicle structure comprises: driven wheel 1, fine-tuning crank 2, Spatial Sphere bearing 3, rocking bar micro-adjusting mechanism 4, Spatial Sphere bearing 5, cross bar 6, driving shaft and roll 7, driven gear 8, driving wheel 9, driven pulley 10, reel 11, fixed pulley 12, fixed pulley support 13, potential energy mass 14, front-wheel support 15, front-wheel 16, the first hold-down nuts 17, the second hold-down nut 18, positive and negative double end fine setting screw rod 19, screw 20.
Described displacement track turns to micro-tensioning system to comprise: driven wheel 1, be connected to coaxial fine-tuning crank 2 with it, fine-tuning crank 2 is fixed in driven wheel 1 upper hopper chute by screw 20, Spatial Sphere bearing 3 is connected and fixed by bolt and fine-tuning crank 2, rocking bar micro-adjusting mechanism 4 two ends are connected with Spatial Sphere bearing 3 and Spatial Sphere bearing 5 respectively, Spatial Sphere bearing 5 is connected with cross bar 6, and cross bar 6 is fixed on front-wheel support 15, and front-wheel 16 is installed on front-wheel support 15; Described rocking bar micro-adjusting mechanism 4 comprises: the first rocking bar, the second rocking bar, the first rocking bar is connected by positive and negative double end fine setting screw rod 19 with the second rocking bar, the first hold-down nut 17, the second hold-down nut 18, positive and negative double end fine setting screw rod 19, the first rocking bar is connected with crank, cross bar 6 is installed on the second rocking bar, the first rocking bar is provided with the first hold-down nut 17, the second rocking bars and is provided with the second hold-down nut 18.
Described power conversion drive system comprises: driven wheel 1 and reel 11 all are installed on driving shaft 7, driven wheel 1 and driven gear 8 engagements, on driven gear 8 axles, driving wheel 9 is installed, driving wheel 9 is coaxial with driven pulley 10, fixed pulley 12 is fixed on the fixed pulley support 13 of little car bottom plate, and potential energy mass 14 is fixed on reel 11 by cotton rope.
Carriage walking process a: end of cotton rope is connected on potential energy mass 14, on the fixing online wheel 11 of the other end, rotation driving wheel 9 makes potential energy piece 14 climbeds reach the height of 400mm, and cotton rope is taken advantage of a situation and walked around fixed pulley 12 and be wrapped on reel 11, and dolly is ready; By aliging with off datum line foremost of dolly, by dolly be placed on the starting line line after, after making position that its driving wheel 9 and starting line horizontal line angle are 36 degree, decontrol dolly, potential energy mass 14 falls, and when potential energy mass 14 descends, drive reel 11 and roll 7, driven wheel 1 rotate together, and driven wheel 1 passes to driven gear 8 by gear drive, driven gear 8 drives driving wheels 9 and driven pulley 10 rotates together, realizes that dolly walks voluntarily; Simultaneously, rotarily drive fine setting rocking bar 4, cross bar 6 and the front-wheel 16 of fine-tuning crank 2 periodically wave, and by the path designed, complete " s " word around stake; As shown in Figure 5, when changing obstacle distance, adjust micro-adjusting mechanism, specific as follows: as to unclamp the first hold-down nut 17, the second hold-down nut 18 and rotate positive and negative double end fine setting screw rod 19 to one party and make with fine setting rocking bar 4 length of its connection and change, simultaneously, the screw 20 of fixing fine setting crank 2 is unclamped, adjust the radius of curvature of crank 2; So just can complete the displacement serpentine walking of dolly.