CN204246833U - A kind of carbon-free trolley of auto-steering - Google Patents

Abstract

A carbon-free trolley for auto-steering, comprises vehicle frame, walking mechanism, steering mechanism, driving mechanism, transmission mechanism, micro-adjusting mechanism, and described walking mechanism comprises trailing wheel, hind axle, rear wheel support; Described steering mechanism comprises front-wheel, fork arm; Described driving mechanism comprises tripod, pulley, trapezoidally to take turns, trapezoidal wheel shaft, trapezoidal wheel carrier; Described transmission mechanism comprises gear wheel, pinion, tooth bar, rack frame, tooth sector; Described micro-adjusting mechanism comprises bearing, axostylus axostyle.The beneficial effects of the utility model are: between each parts, frictional force is little, little to the loss of car; Trolley body is simple, single gear transmission, and loss of energy is few; Adopt micro-adjusting mechanism, and transmission mechanism have employed the high gear of cooperation transmission efficiency and tooth bar, is convenient to correct track, accurately avoiding obstacles; Dolly quality is gently exquisite, and travel distance is far away.

Description

A self-steering carbon-free trolley

technical field

The utility model relates to the application field of mechanical energy, in particular to an automatic steering carbon-free trolley.

Background technique

The carbon-free trolley is a mechanical device that uses gravitational potential energy as the only energy, which can convert gravitational potential energy into mechanical energy, and is used to drive the trolley to drive and turn. The carbon-free trolley adopts a three-wheel structure. The front wheels are used for steering, which can realize a predetermined trajectory during driving and automatically avoid obstacles on the road ahead, and the two rear wheels are used as driving wheels. The biggest advantage of the carbon-free trolley lies in the conversion between gravitational potential energy and mechanical energy, as well as the controllability of the driving trajectory, which truly realizes carbon-free. However, the existing carbon-free trolleys have low energy conversion rates and flaws in mechanism design, resulting in insufficient power and inaccurate driving trajectories.

Utility model content

Aiming at the above problems, the utility model provides an automatic steering carbon-free trolley with simple structure, low energy consumption and high adjustment precision.

The technical scheme adopted by the utility model to achieve the above-mentioned technical purpose is: a carbon-free trolley with automatic steering, including a frame, a running mechanism, a steering mechanism, a prime mover mechanism, a transmission mechanism, and a fine-tuning mechanism. Wheel, rear wheel shaft, rear wheel support, rear wheel is fixedly arranged at the two ends of rear wheel shaft, rear wheel shaft is rotatably erected on the rear wheel support, rear wheel support is fixedly arranged on the vehicle frame; described steering mechanism includes front wheel, fork bar , the front wheel can be rotatably mounted on the fork rod, and the fork rod can be rotatably arranged on the vehicle frame; On a shaft at the top of the frame, the tripod is installed on the vehicle frame, the trapezoidal wheel is fixedly arranged on the trapezoidal wheel shaft, the trapezoidal wheel shaft is rotatably mounted on the trapezoidal wheel frame, and the trapezoidal wheel frame is fixedly arranged on the vehicle frame; the transmission mechanism includes Large gear, pinion, rack, rack rack, steering gear, the large gear is fixed on one end of the trapezoidal wheel shaft, the small gear is fixed on the rear wheel shaft and meshes with the large gear, and the steering gear is fixed on the upper end of the fork rod. The rack is movably erected on the rack frame and meshed with the steering gear, the rack frame is fixedly arranged on the vehicle frame, and one end of the rack is provided with a stroke groove; the fine-tuning mechanism includes a bearing and a shaft, and the bearing is arranged on the shaft One end and the other end of the shaft rod can be radially adjusted and arranged on the radial long slot hole of the bull gear, and the bearing is installed in the stroke groove of the rack to form a rolling pair.

Preferably, the frame material is aluminum alloy.

Preferably, the travel groove of the rack is set in the shape of a slotted hole, and the distance between the two inner sidewalls of the slotted hole is adapted to the outer diameter of the bearing of the fine-tuning mechanism.

The rear wheel is provided with a hollowed out portion.

Preferably, there are three hollowed out parts of the rear wheel.

Compared with the prior art, the beneficial effects of the utility model are: the friction force between each component is small, and the loss to the car is small; the trolley mechanism is simple, single-stage gear transmission, and the energy loss is small; the fine-tuning mechanism is adopted, and the transmission mechanism The gear and rack with high transmission efficiency are adopted, which is convenient for correcting the track and avoiding obstacles accurately; the trolley is light and compact, and has a long walking distance.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described. in:

Fig. 1 is the perspective view of a kind of automatic steering carbon-free dolly of the utility model;

Fig. 2 is the front view of a kind of automatic steering carbon-free trolley of the utility model;

Fig. 3 is a top view of an automatic steering carbon-free trolley of the present invention.

The label numbers in the accompanying drawings are explained as follows: 1, vehicle frame; 2, rear wheel; 3, hollowed out part; 4, large gear; , pulley; 10, trapezoidal wheel; 11, trapezoidal wheel frame; 12, rack frame; 13, steering gear; 14, front wheel; 15, fork lever; 16, radial long slot hole; 17, stroke groove; 18, Trapezoidal axle; 19, rear wheel support; 20, rear axle; 21, pinion.

Detailed ways

The embodiment of the present utility model, see Fig. 1～Fig. 3, a kind of carbon-free trolley that turns automatically, comprises vehicle frame 1, traveling mechanism, steering mechanism, prime mover mechanism, transmission mechanism, fine-tuning mechanism, and described traveling mechanism includes rear Wheel 2, rear wheel shaft 20, rear wheel support 19, rear wheel 2 is fixedly arranged on the two ends of rear wheel shaft 20, rear wheel shaft 20 is rotatably erected on the rear wheel support 19, and rear wheel support 19 is fixedly arranged on the vehicle frame 1; Described steering mechanism comprises front wheel 14, fork bar 15, and described front wheel 14 is rotatably erected on the fork bar 15, and fork bar 15 is rotatably arranged on vehicle frame 1; Described motive mechanism comprises tripod 8, pulley 9 , trapezoidal wheel 10, trapezoidal wheel shaft 18, trapezoidal wheel frame 11, pulley 9 is rotatably arranged on a shaft at the top of tripod 8, tripod 8 is installed on the vehicle frame 1, trapezoidal wheel 10 is fixedly arranged on trapezoidal wheel shaft 18, The trapezoidal wheel shaft 18 is rotatably mounted on the trapezoidal wheel frame 11, and the trapezoidal wheel frame 11 is fixedly arranged on the vehicle frame 1; the transmission mechanism includes a large gear 4, a pinion 21, a rack 7, a rack frame 12, and a steering gear 13 , the bull gear 4 is fixed on one end of the trapezoidal axle 18, the pinion 21 is fixed on the rear axle 20 and meshes with the bull gear 4, the steering gear 13 is fixed on the upper end of the fork rod 15, and the rack 7 is movable on the rack On the frame 12 and meshed with the steering gear 13, the rack frame 12 is fixedly arranged on the frame 1, and one end of the rack 7 is provided with a stroke groove 17; the fine-tuning mechanism includes a bearing 6 and a shaft rod 5, and the bearing 6 is arranged on One end of the shaft 5 and the other end of the shaft 5 can be radially adjusted and arranged on the radial slot 16 of the bull gear 4 , and the bearing 6 is installed in the stroke groove 17 of the rack 7 to form a rolling pair.

The vehicle frame 1 is made of aluminum alloy.

The travel groove 17 of the rack 7 is arranged in the shape of a slotted hole, and the distance between the two inner sidewalls of the slotted hole matches the outer diameter of the bearing 6 of the fine-tuning mechanism.

The rear wheel 2 is provided with three hollowed out parts 3 .

In the utility model, the prime mover mechanism uses a pulley 9 and a trapezoidal wheel 10 to convert the gravitational potential energy into a rotating mechanism. Like this, when just starting, the turning radius of the trapezoid is the largest, and the initial torque is the largest, which is conducive to starting. , as the radius of the trapezoidal wheel 10 decreases, the rotational speed increases and the torque decreases. When the torque and resistance moment are balanced, the trolley runs at a constant speed, and then as the radius of the trapezoidal wheel 10 decreases, the torque becomes smaller and smaller than the resistance moment, the trolley decelerates slowly until it stops, and when it stops, the object just touches the trolley, which can avoid the large energy loss caused by the collision between the object and the trolley. During the whole process, the gravitational potential energy is completely transformed into the loss of the trolley's movement process, so that the trolley can travel farther.

The transmission mechanism adopts gear transmission, which has the characteristics of high transmission efficiency, compact structure and reliable operation.

The bearing 6 of the fine-tuning mechanism can be adjusted away from or close to the center of the bull gear 4 according to the interval of the obstacle, and the stroke of the rack 7 is adjusted to determine the steering timing of the front wheel 14 by it.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.

Claims (5)

1. the carbon-free trolley of an auto-steering, it is characterized in that: comprise vehicle frame (1), walking mechanism, steering mechanism, driving mechanism, transmission mechanism, micro-adjusting mechanism, described walking mechanism comprises trailing wheel (2), hind axle (20), rear wheel support (19), trailing wheel (2) is fixedly installed on hind axle (20) two ends, hind axle (20) is rotatably erected on rear wheel support (19), and rear wheel support (19) is fixedly installed on vehicle frame (1), described steering mechanism comprises front-wheel (14), fork arm (15), and described front-wheel (14) is rotatably erected on fork arm (15), and fork arm (15) is rotatably arranged on vehicle frame (1), described driving mechanism comprises tripod (8), pulley (9), trapezoidally takes turns (10), trapezoidal wheel shaft (18), trapezoidal wheel carrier (11), pulley (9) is rotatably arranged on the axle of tripod (8) top one, tripod (8) is installed on vehicle frame (1), trapezoidal take turns (10) are fixedly installed on trapezoidal wheel shaft (18), trapezoidal wheel shaft (18) is rotatably erected on trapezoidal wheel carrier (11), and trapezoidal wheel carrier (11) is fixedly installed on vehicle frame (1), described transmission mechanism comprises gear wheel (4), pinion (21), tooth bar (7), rack frame (12), tooth sector (13), gear wheel (4) is fixedly installed on one end of trapezoidal wheel shaft (18), pinion (21) is fixedly installed on hind axle (20) and goes up and be meshed with gear wheel (4), tooth sector (13) is fixedly installed on fork arm (15) upper end, tooth bar (7) adjustable shelf is located at rack frame (12) and goes up and be meshed with tooth sector (13), rack frame (12) is fixedly installed on vehicle frame (1), one end of tooth bar (7) is provided with stroke groove (17), described micro-adjusting mechanism comprises bearing (6), axostylus axostyle (5), bearing (6) is arranged on axostylus axostyle (5) one end, axostylus axostyle (5) other end can radiai adjustment be arranged on the radial long slot bore (16) of gear wheel (4), and bearing (6) is installed in stroke groove (17) the interior formation rolling pair of tooth bar (7).

2. the carbon-free trolley of a kind of auto-steering according to claim 1, is characterized in that: described vehicle frame (1) material is aluminium alloy.

3. the carbon-free trolley of a kind of auto-steering according to claim 1, it is characterized in that: it is poroid that the stroke groove (17) of described tooth bar (7) is set to elongated slot, and bearing (6) external diameter of the distance between two madial walls of long slot bore and micro-adjusting mechanism is suitable.

4. the carbon-free trolley of a kind of auto-steering according to claim 1, is characterized in that: described trailing wheel (2) is provided with cavern part (3).

5. the carbon-free trolley of a kind of auto-steering according to claim 4, is characterized in that: the cavern part (3) of described trailing wheel (2) is 3.