CN111870969A - Carbon-free trolley track burning device and method - Google Patents

Abstract

The invention provides a track recording device and method for a carbon-free trolley. A guide rod is installed on the base of the power mechanism for guiding the carbon-free trolley when it walks on the track. The cam disc blank of the trolley steering, the front wheel of the steering mechanism has a groove for walking according to the track, and the front end of the push rod of the steering mechanism is equipped with a heating wire member for cutting out the carbon-free trolley when it walks on the track The outer contour of the steering cam; the fine-tuning mechanism is installed with a fine-tuning nut for adjusting the running track of the carbon-free trolley. By this method, the cam disc parts on the steering mechanism of the carbon-free trolley can be produced simply and quickly, without the need for complex trajectory simulation and theoretical calculation, and the steering cam of the carbon-free trolley with any trajectory can be produced by this method.

Description

A carbonless car track recording device and method

technical field

The present invention relates to the technical field of carbon-free trolleys, in particular to a device and method for recording the trajectory of a carbon-free trolley.

Background technique

With the development of science and technology, energy consumption is increasing day by day, the global temperature is rising, and the living environment of human beings is getting worse and worse. People have realized the importance of energy saving and environmental protection, and the concept of carbon-free has also been taken as a research topic by more and more people. , the concept of cleaner, more environmentally friendly, more energy-saving and more efficient has become more and more popular.

In this context, a carbon-free car driven by gravitational potential energy has become a national regular event for college students' scientific and technological innovation. Carbon-free trolley is a kind of bicycle with gravitational potential energy as the only energy source and has the function of continuous obstacle avoidance. Through the conversion of energy, the trolley can be driven according to the trajectory predetermined by the designer, thus realizing carbon-free in the true sense. The carbon-free trolley has a three-wheel structure with a steering control mechanism, and the steering control mechanism has a quick adjustment device to adapt to the competition venues with obstacles of different distances; the given gravitational potential energy is uniformly used during the competition. A standard weight with a mass of 1KG The weight (Φ50×65mm, made of carbon steel) is obtained, and the dropable height of the weight is required to be 400±2mm. Standard weights are always carried by the carbon-free trolley and are not allowed to fall from the carbon-free trolley. The competition requires the car to walk around the pile according to a predetermined trajectory, to accurately bypass obstacles and not to knock down obstacles, and the farther the trajectory distance, the better.

There are many types of existing carbon-free trolleys. The trajectories during walking mainly include "8-shaped" trajectory, "S-shaped" trajectory, "double 8-shaped" trajectory and "S-ring" trajectory, etc., while the steering mechanism is carbon-free. The key components for the trolley to walk according to the expected trajectory. The steering mechanism of the existing carbon-free trolley mainly includes a crank-rocker mechanism, a crank-slider mechanism, a sine mechanism, a sheave mechanism, an incomplete gear mechanism, etc. The design of the steering mechanism is generally It is calculated by trajectory simulation or trajectory curve under ideal conditions, and the steering mechanism is the most important part of the carbon-free trolley. The quality of the steering mechanism design directly determines whether the trolley can successfully achieve the expected trajectory and avoid obstacles. So as to achieve a complete trajectory of walking.

Some of the existing carbon-free trolleys have complex structures and are difficult to process, resulting in high manufacturing costs for the trolleys; some steering mechanisms are difficult to adjust, the steering is inaccurate, cannot meet the requirements of period and amplitude, and the trajectory curves are difficult to calculate and optimize; some trolley mechanisms are cumbersome , not only increases the quality of the car itself, but also increases the energy loss during the movement, making its walking performance unsatisfactory.

Existing carbon-free trolleys are mostly made of steel, plastic and other materials. The carbon-free trolley has a large friction force with the ground when walking, and the energy loss is relatively serious, so that the trolley cannot travel a long distance, and it cannot pass through a lot during competition. obstacle.

At present, there is still a lack of a carbon-free trolley with simple structure, high stability, simple processing, convenient operation and accurate movement trajectory.

SUMMARY OF THE INVENTION

In view of the above-mentioned deficiencies in the prior art, the present invention provides a carbon-free trolley that is steered by a cam mechanism, and the trolley cam with any trajectory can be produced by this method, so as to solve the problems raised in the above background and simplify the design and assembly. , Reduce the cost of the car, and ensure that the car can walk and avoid obstacles according to the predetermined trajectory.

In order to solve the above technical problems, the present invention proposes the following technical solutions: a carbon-free trolley track recording device, which includes a power mechanism for supporting the entire device and providing walking power, and a steering mechanism is installed at the front end of the base of the power mechanism , the power mechanism cooperates with the steering mechanism through the transmission mechanism, and the steering mechanism is installed at the front end of the base; the large gear of the transmission mechanism is equipped with a cam disc blank for driving the steering of the carbonless trolley; the steering mechanism The front wheel is machined with a groove for walking along the track, and the front end of the push rod of the steering mechanism is installed with a heating wire member, which is used for the carbon-free trolley to travel on the track. On the cam disc blank Cut out the cam outer contour of the steering.

The power mechanism includes a base, a support rod is fixed on the top of the base, a pulley bracket is fixedly installed on the top of the support rod, a pulley is installed on the pulley support, and a string is passed around the pulley, and the string is One end of the transmission shaft is connected to the heavy object, and the other end is wound on the transmission shaft, and the transmission shaft is supported and installed at the rear end of the base through the bearing; the two ends of the transmission shaft are respectively installed with a driving wheel and a driven wheel.

The weight is a standard weight with a certain weight.

The transmission mechanism includes a support fixed on the base of the power mechanism, a gear shaft is installed on the support, a large gear is supported and installed on the gear shaft, and the large gear meshes with the pinion for transmission, and the small gear is used for transmission. The gear is mounted on the drive shaft of the powertrain.

The steering mechanism includes a front wheel fork, the front wheel fork is vertically supported and installed on the front end of the base of the power mechanism through a bearing, a front wheel axle is installed at the bottom end of the front wheel fork, and both ends are locked by nuts; A front wheel is rotatably supported and installed on the wheel shaft, and a groove is machined on the front wheel; the top of the front wheel fork is connected with a rotating shaft through a thread, and is locked by a locking nut; the cam disc blank is connected to the transmission through bolts The large gears of the mechanism are fixedly connected, the top of the rotating shaft is fixedly installed with a push rod through threads, and is locked by a locking nut; the heating wire member is fixed on the front end of the push rod through a threaded connection, and the heating wire member is connected with the battery. , and supply power to the heating wire member; the push rod is covered with a rubber ring, and the other end of the rubber ring is fixedly installed on the groove of the support.

The cam disc blank is made of KT foam board, and the bottom of the cam disc blank at the initial position is kept at least 5mm away from the ground.

The steering mechanism is provided with a fine-tuning mechanism for adjusting the running track of the carbonless trolley, the fine-tuning mechanism includes a fine-tuning screw and a fine-tuning nut; the fine-tuning screw is fixedly installed on the upper end of the rotating shaft of the steering mechanism; the fine-tuning nut is mounted on the fine-tuning screw superior.

The track is made according to actual needs before recording, and the track section is circular; the groove on the front wheel and the groove on the guide rod are matched with the track, and the carbon-free trolley slides freely along the track.

The method for track recording by the carbonless trolley track recording device includes the following steps:

Step 1: Before recording the track, the track needs to be made according to the actual needs, and the track section is circular;

Step 2: After the track is made, the front wheel groove of the carbon-free trolley is stuck on the track, and the carbon-free trolley is placed;

Step 3: Power on the heating wire component, push the carbon-free trolley to drive slowly and uniformly for one cycle on the created track, the driving wheel on the carbon-free trolley drives the pinion to rotate, the pinion meshes with the big gear, and is fixedly installed in the The cam disc blank on the big gear rotates, and the rotation of the steering mechanism drives the push rod to swing, and the electric heating wire member at the front end of the push rod contacts the cam disc blank to cut the outer contour of the cam, and the cam disc blank is cut into cam disc parts;

Step 4: Remove the heating wire member and the front wheel;

Step 5: Install the interference rod at the front end of the push rod on the push rod, install the front wheel without groove on the front wheel axle, and adjust the tightness of the rubber ring, so that the interference rod and the outer contour of the cam are always in pressing contact;

Step 6: Place the carbon-free trolley on the actual track, and adjust the steering mechanism through the fine-tuning mechanism according to the trajectory of the carbon-free trolley to make the carbon-free trolley walk along the pre-designed trajectory to avoid obstacles.

The present invention has the following beneficial effects:

1. The present invention is a method for recording the trajectory of a carbon-free trolley. Through this method, the cam parts on the steering mechanism of the carbon-free trolley can be easily and quickly produced without complex trajectory simulation and theoretical calculation. Steering cams can be made by this method.

2. The above-mentioned carbon-free trolley has the advantages of simple structure, good stability, low cost, simple processing, convenient operation and accurate movement trajectory.

3. The two rear wheels of the above carbon-free trolley are made of plexiglass, the base and support are made of aluminum, the two meshing gears are made of plexiglass, and the cam disc is KT foam board. Less loss, long walking distance around the pile.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings and embodiments.

FIG. 1 is a three-dimensional view of a carbon-free trolley device from a first perspective.

FIG. 2 is a three-dimensional view of a carbon-free trolley device from a second perspective.

FIG. 3 is a three-dimensional view of the carbon-free trolley device from a third perspective.

Figure 4 is a carbon-free trolley device and track diagram 1.

Figure 5 is the carbon-free trolley device and trajectory diagram 2.

Figure 6 is the final three-dimensional view of the carbon-free trolley device.

FIG. 7 is a structural diagram of a heating wire component.

In the figure: power mechanism 1, transmission mechanism 2, steering mechanism 3, fine adjustment mechanism 4, cam outer contour 5, track 6, interference rod 7, cam disc 8;

Base 101, transmission shaft 102, driving wheel 103, driven wheel 104, support rod 105, pulley bracket 106, pulley 107, weight 108, string 109;

Support 201, large gear shaft 202, front wheel fork 203, pinion 204;

Front wheel 301, front wheel axle 302, front wheel fork 303, rotating shaft 304, cam disc blank 305, push rod 306, heating wire member 307, battery 308, rubber ring 309;

The fine adjustment screw 401 and the fine adjustment nut 402 .

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

Example 1:

1-7, a carbon-free trolley track recording method, which includes a power mechanism 1, a transmission mechanism 2, a steering mechanism 3, a fine-tuning mechanism 4, a disc cam blank 305 and a track 6, the large gear of the transmission mechanism 2 203 is installed with a cam disc blank 305 for steering the carbon-free trolley, the front wheel 301 of the steering mechanism 3 has a groove for walking according to the track 6, and the front end of the push rod 306 of the steering mechanism 3 is installed with a heating wire The component 307 is used to cut the cam outer contour 5 for turning when the carbon-free trolley is running on the track 6; the fine-tuning mechanism 4 is installed with a fine-tuning nut 402 for adjusting the running track of the carbon-free trolley. By this method, the cam disc parts on the steering mechanism of the carbon-free trolley can be produced simply and quickly, without the need for complex trajectory simulation and theoretical calculation, and the steering cam of the carbon-free trolley with any trajectory can be produced by this method. The carbon-free trolley has simple structure, good stability, low cost, simple processing, convenient operation and accurate movement trajectory.

In the specific working process, the whole trolley is driven by the power mechanism 1, and the transmission mechanism 2 is driven by the power mechanism 1, and then the steering mechanism 3 is driven by the transmission mechanism 2, and finally the steering mechanism 3 is used to realize the steering of the trolley.

Further, the power mechanism 1 includes a base 101 , a transmission shaft 102 , a driving wheel 103 , a driven wheel 104 , a support rod 105 , a pulley bracket 106 , a pulley 107 , a weight 108 , and a string 109 ; the transmission shaft 102 is installed on the base 101 rear end; the driving wheel 103 and the driven wheel 104 are respectively installed on both ends of the transmission shaft 102; the support rod 105 is installed on the front end surface of the base 101; the pulley bracket 106 is fixedly installed on the support rod 105; the The pulley 107 is installed on the pulley bracket 106; the weight 108 is a standard weight of 1KG, which is Φ50×65mm and made of carbon steel during the competition; one end of the string 109 is fixed on the transmission shaft 102, The other end is connected to the weight 108 . The above-mentioned power mechanism 1 is used to provide power for walking. In the specific use process, the string 109 is driven by the free fall of the heavy object 108, the transmission shaft 102 is driven by the string 109, and the driving wheel 103 and the driving wheel 103 are simultaneously driven by the transmission shaft 102. The driven wheel 104 rotates, thereby driving the entire trolley to walk.

Further, the transmission mechanism 2 includes a support 201, a gear shaft 202, a large gear 203, and a pinion 204; the support 201 is fixedly installed on the base 101; the gear shaft 202 is installed on the support 201, and the large gear The gear 203 is mounted on the gear shaft 202 ; the pinion 204 is mounted on the transmission shaft 102 . The above-mentioned transmission mechanism 2 is used to drive the steering mechanism 3 to turn. During the working process, the pinion gear 204 is driven by the transmission shaft 102 , and then the large gear 203 is driven by the pinion gear 204 , and finally the large gear 203 drives the cam outer contour 5 to rotate synchronously.

Further, the steering mechanism 3 includes a front wheel 301, a front wheel axle 302, a front wheel fork 303, a rotating shaft 304, a cam disc blank 305, a push rod 306, a heating wire member 307, a battery 308, and a rubber ring 309; the front wheel 301 Installed on the front wheel axle 302, the front wheel 301 is machined with grooves; the front wheel axle 302 is installed on the front wheel fork 303, and both ends are locked by nuts; the rotating shaft 304 is installed on the front end of the base 101, the lower end of the rotating shaft 304 It is connected with the front wheel fork 303 through a thread, and is locked by a locking nut; the cam disc blank 305 is fixedly connected with the large gear 203 by bolts. The cam disc blank 305 is made of KT foam board, and the cam disc blank 305 Keep a distance of 2~5mm between the bottom of 305 and the ground. The push rod 306 is installed on the upper end of the rotating shaft 304 through a threaded connection, and is locked by a lock nut, the heating wire member 307 is fixed on the front end of the push rod 306 through a threaded connection, and the battery 309 is connected with the heating wire member 307. To supply power to the heating wire member 307 , one end of the rubber ring 309 pulls the push rod 306 , and the other end is fixedly mounted on the groove of the support 201 . The steering mechanism 3 described above can be used for steering. Furthermore, the outer contour of the cam disc can be cut out according to the track 6 .

Further, the fine-tuning mechanism 4 includes a fine-tuning screw 401 and a fine-tuning nut 402 ; the fine-tuning screw 401 is fixedly mounted on the upper end of the rotating shaft 304 ; the fine-tuning nut 402 is mounted on the fine-tuning screw 401 . The above-mentioned fine adjustment mechanism 4 can be used for fine adjustment of the running trajectory.

Further, the track 6 is made according to actual needs before recording, and the cross-section of the track 6 is circular;

Further, the driving wheel 104 drives the pinion 204 to rotate, the pinion 204 meshes with the large gear 203 for transmission, the cam disc blank 305 fixed on the large gear 203 rotates, and the steering mechanism 3 rotates to drive the push rod 306 to swing. , the heating wire member 307 located at the front end of the push rod 306 contacts with the cam disc blank 305 after being energized, and the outer contour 5 of the cam is cut by inscription.

Example 2:

Described a carbon-free trolley track recording method, he comprises the following steps:

Step 1: Before burning the track 6, it is necessary to make the track 6 according to the actual needs, and the cross-section of the track 6 is circular;

Step 2: After the track 6 is made, the front wheel 301 groove of the carbon-free trolley is stuck on the track 6, and the carbon-free trolley is placed;

Step 3: Power on the heating wire member 307, push the carbon-free trolley by hand to drive slowly and uniformly on the track 6 made for one cycle, the driving wheel 103 on the carbon-free trolley drives the pinion 204 to rotate, the pinion 204 and the large gear 203 Meshing transmission, the cam disc blank 305 fixedly installed on the large gear 203 rotates, the steering mechanism 3 rotates to drive the push rod 306 to swing, and the heating wire member 307 at the front end of the push rod 306 contacts the cam disc blank 305 to cut the outer contour of the cam 5. The cam disc blank 305 is cut into the cam disc 8 parts;

Step 4: Remove the heating wire member 307 and the front wheel 301;

Step 5: Install the interference rod 7 at the front end of the push rod 306 on the push rod 306, install the front wheel without groove on the front wheel axle 302, adjust the tightness of the rubber ring 309, so that the interference rod 7 and the outer contour of the cam are always pressed. close contact;

Step 6: Place the carbon-free trolley on the actual track. According to the trajectory of the carbon-free trolley, adjust the steering mechanism 3 through the fine-tuning mechanism 4 to make the carbon-free trolley walk along the pre-designed trajectory to avoid obstacles.

Claims (9)

1. The utility model provides a carbon-free dolly orbit recording device which characterized in that: the walking mechanism comprises a power mechanism (1) for supporting the whole device and providing walking power, wherein a steering mechanism (3) is arranged at the front end of a base (101) of the power mechanism (1), the power mechanism (1) is matched with the steering mechanism (3) through a transmission mechanism (2), and the steering mechanism (3) is arranged at the front end of the base (101); a cam disc blank (305) for driving the carbon-free trolley to turn is mounted on the large gear (203) of the transmission mechanism (2); grooves used for walking along a track (6) are machined in front wheels (301) of the steering mechanism (3), an electric heating wire member (307) is installed at the front end of a push rod (306) of the steering mechanism (3), and the electric heating wire member (307) is used for cutting a steering cam outer contour (5) on a cam disc blank (305) when the carbon-free trolley walks on the track (6).

2. The carbon-free trolley track burning device according to claim 1, wherein: the power mechanism (1) comprises a base (101), a supporting rod (105) is fixed to the top of the base (101), a pulley support (106) is fixedly installed to the top of the supporting rod (105), a pulley (107) is installed on the pulley support (106), a string (109) is wound on the pulley (107), one end of the string (109) is connected with a heavy object (108), the other end of the string is wound on a transmission shaft (102), and the transmission shaft (102) is supported and installed at the rear end of the base (101) through a bearing; and a driving wheel (103) and a driven wheel (104) are respectively arranged at two ends of the transmission shaft (102).

3. A carbon-free carriage track burning apparatus as claimed in claim 2, wherein: the weight (108) adopts a standard weight with a certain weight.

4. The carbon-free trolley track burning device according to claim 1, wherein: the transmission mechanism (2) comprises a support (201) fixed on a base (101) of the power mechanism (1), a gear shaft (202) is installed on the support (201), a large gear (203) is installed on the gear shaft (202) in a supporting mode, the large gear (203) is in meshed transmission with a small gear (204), and the small gear (204) is installed on a transmission shaft (102) of the power mechanism (1).

5. The carbon-free trolley track burning device according to claim 1, wherein: the steering mechanism (3) comprises a front wheel fork (303), the front wheel fork (303) is vertically supported and installed at the front end of the base (101) of the power mechanism (1) through a bearing, a front wheel shaft (302) is installed at the bottom end of the front wheel fork (303), and two ends of the front wheel fork are locked through nuts; a front wheel (301) is rotatably supported and mounted on the front wheel shaft (302), and a groove is formed in the front wheel (301); the top of the front wheel fork (303) is connected with a rotating shaft (304) through threads and is locked through a locking nut; the cam disc blank (305) is fixedly connected with a large gear (203) of a transmission mechanism (2) through a bolt, and the top end of the rotating shaft (304) is fixedly provided with a push rod (306) through threads and is locked through a locking nut; the electric heating wire component (307) is fixed at the front end of the push rod (306) through threaded connection, and the electric heating wire component (307) is connected with the battery (309) and supplies power to the electric heating wire component (307); the push rod (306) is sleeved with a rubber ring (309), and the other end of the rubber ring (309) is fixedly arranged on a groove of the support (201).

6. A carbon-free trolley track burning device according to claim 1 or 5, characterized in that: the cam disc blank (305) material is KT cystosepiment, and the cam disc blank (305) bottom and the ground of initial position keep at least 5mm interval.

7. A carbon-free carriage track burning apparatus as claimed in claim 1 or 3, wherein: a fine adjustment mechanism (4) for adjusting the walking track of the carbon-free trolley is mounted on the steering mechanism (3), and the fine adjustment mechanism (4) comprises a fine adjustment screw rod (401) and a fine adjustment nut (402); the fine adjustment screw rod (401) is fixedly arranged at the upper end of a rotating shaft (304) of the steering mechanism (3); the fine adjustment nut (402) is installed on the fine adjustment screw rod (401).

8. The carbon-free trolley track burning device according to claim 1, wherein: the track (6) is manufactured according to actual requirements before burning, and the section of the track (6) is circular; the groove on the front wheel (301) and the groove of the guide rod (6) are matched with the track (6), and the carbon-free trolley freely slides along the track (6).

9. Method for track-burning with a carbon-free trolley track-burning device according to any of claims 1-8, characterized in that it comprises the following steps:

step 1: before the track (6) is recorded, the track (6) is manufactured according to actual requirements, and the section of the track (6) is circular;

step 2: after the track (6) is manufactured, clamping a groove of a front wheel (301) of the carbon-free trolley on the track (6), and placing the carbon-free trolley;

and step 3: electrifying an electric heating wire component (307), pushing a carbon-free trolley to slowly run on a manufactured track (6) at a constant speed for 1 period, driving a driving wheel (103) on the carbon-free trolley to drive a pinion (204) to rotate, wherein the pinion (204) is in meshing transmission with a gearwheel (203), a cam disc blank (305) fixedly arranged on the gearwheel (203) rotates, a steering mechanism (3) rotates to drive a push rod (306) to swing, the electric heating wire component (307) positioned at the front end of the push rod (306) is in contact with the cam disc blank (305) to cut a cam outer contour (5), and the cam disc blank (305) is cut into cam disc (8) parts;

and 4, step 4: removing the heating wire member (307) and the front wheel (301);

and 5: a touch rod (7) at the front end of a push rod (306) is arranged on the push rod (306), a front wheel without a groove is arranged on a front wheel shaft (302), and the tightness of a rubber ring (309) is adjusted, so that the touch rod (7) is always in pressing contact with the outer contour of a cam;

step 6: the carbon-free trolley is placed on an actual track, and the steering mechanism (3) is adjusted through the fine adjustment mechanism (4) according to the walking track of the carbon-free trolley, so that the walking track of the carbon-free trolley walks along the pre-designed track to avoid obstacles.

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