CN108295482A - It is a kind of to walk to close the carbon-free trolley of the figure of eight - Google Patents

Abstract

It can walk to close the carbon-free trolley of the figure of eight the present invention relates to a kind of, including bottom plate, column, front wheels and rear wheels；The column is on the bottom plate vertically；The front-wheel by adjusting bracket it is swingable be connected to bottom plate front end centre position, correspond to be equipped at the position of the adjusting bracket on the bottom plate makes the steering mechanism of the front-wheel steer by pushing adjusting bracket to swing；There are two the trailing wheels, and two trailing wheels are mounted on the base plate rear end both sides by rear axle；It is equipped on the column and drives the rear wheel also to drive front-wheel steer so that the driving device of figure of eight track is closed in carbon-free trolley walking by the steering mechanism simultaneously by gravitional force.The beneficial effects of the invention are as follows：It is simple in structure, under at low cost, assembly easy to process；Kinematic pair is less, and resistance is small, and low energy consumption, can walk more " 8 " words, and traveling process is steady, and regulatory function is convenient, can generate the more track for crossing stake.

Description

A carbon-free trolley that can walk in a closed "8" shape

technical field

The invention relates to the field of carbon-free trolleys, in particular to a carbon-free trolley capable of walking in a closed "8" shape.

Background technique

The carbon-free trolley is a three-wheeled rear-drive trolley with continuous obstacle avoidance function that only uses gravitational potential energy as driving energy. Facing the reduction of coal resources, the concept of carbon-free has been paid more and more attention. The principle is to raise the weight to a specified height, and the weight will fall by itself under the action of gravity. The weight is connected to a flexible wire, and the direction of the pulling force is changed through a movable pulley. The other end of the flexible wire is connected to the drive shaft of the trolley to convert potential energy into mechanical energy , so as to drive the car forward to avoid obstacles and get out of the "8" pattern. Since the gravitational potential energy is the only energy, there is no other source of energy for the steering mechanism to complete the action, and it must be associated with the drive mechanism to obtain energy.

In order to adapt to different pile distances, common carbon-free trolleys have many deficiencies, such as complex structure, difficult processing, inflexible body weight, easy slippage when turning at a large angle, low precision adjustment, and high energy consumption, which cannot meet the requirements of actual use.

Contents of the invention

To sum up, in order to overcome the deficiencies of the existing technology, the technical problem to be solved by the present invention is A carbon-free trolley capable of walking in a closed "8" shape is provided.

The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a carbon-free trolley capable of walking in a closed "8" shape, including a base plate, a column, a front wheel and a rear wheel; the column is vertically placed on the base plate; the front The wheels are swingably connected to the middle position of the front end of the bottom plate through the adjustment frame, and a steering mechanism is provided on the bottom plate corresponding to the position of the adjustment frame to make the front wheels turn by pushing the adjustment frame to swing; There are two wheels, and the two rear wheels are installed on both sides of the rear end of the base plate through the rear axle; the rear wheels are driven to rotate through the gravitational potential energy on the column, and the front wheels are also driven by the steering mechanism at the same time. The drive device that turns to make the carbon-free trolley walk on a closed "8"-shaped track.

The beneficial effects of the present invention are: simple structure, low cost, easy to process and assemble; fewer kinematic pairs, less resistance, low energy consumption, more "8" characters can be walked, and the traveling process is stable, the adjustment function is convenient, and it can produce More trajectories over piles.

On the basis of above-mentioned technical scheme, the present invention can also be improved as follows:

Further, the driving device includes a fixed frame, a front axle, a winding wheel and a flexible wire rope; the fixed frame is at the top of the column, and a fixed pulley is arranged on the fixed frame through a fixed pulley seat; the front The shaft is rotatable at the front of the base plate, and the winding wheel is fixed in the middle of the front axle; on the base plate corresponding to the side of the front axle, there is a linkage with the front axle and for The large gear that drives the rear axle to rotate; one end of the flexible wire is wound on the winding wheel, and the other end of the flexible wire is wound upwards around the fixed pulley and then connected downwards to convert the gravitational potential energy into the winding The kinetic energy of the wheel is the weight of the hammer.

Further, a pinion gear is fixed on the rear axle, and the bull gear drives the pinion gear to rotate through a transition gear.

The beneficial effect of adopting the above-mentioned further solution: the carbon-free trolley can be driven forward by gravitational potential energy.

Further, the steering mechanism includes a cam, a support frame and a spring; one side of the adjustment frame is provided with a flange extending horizontally away from the direction of the large gear, and an adjusting shaft, an adjustment screw is provided on the bottom plate corresponding to the position directly behind the adjustment shaft, and the two ends of the spring are respectively connected to the adjustment shaft and the adjustment screw, and the spring stretches to make the The adjustment frame is deflected toward the side facing away from the large gear to keep the front wheel in a steering state;

The cam is fixed on the end of the front axle away from the bull gear, and the support frame is fixedly connected to the position corresponding to the cam on the bottom plate; a guide rail is provided on the support frame, and a guide rail is provided on the guide rail. A slide block is slidably provided, and a support block is provided on the slide block; a first guide column sticking to the outer circumference of the cam is provided on the side of the support block close to the cam, and the side away from the cam is A second guide post is provided to stretch the spring and push the adjustment shaft to swing the adjustment frame to turn the front wheels.

The beneficial effect of adopting the above-mentioned further scheme is that the carbon-free trolley is driven to steer by the potential energy of gravity to follow a closed "8"-shaped trajectory.

Further, the flange is provided with a keyway, and the adjustment shaft is fixed at different positions in the keyway by screws to adjust the tension of the spring so as to realize the force closure of the first guide post to the cam.

The beneficial effect of adopting the above further solution is: adjusting the initial steering swing angle of the front wheels and the initial length of the spring, so that the trolley can adapt to different pile distances and travel according to a predetermined track.

Description of drawings

Fig. 1 is the three-dimensional figure of overall structure of the present invention;

Fig. 2 is a three-dimensional view of the present invention without parts such as columns and fixing frames.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. base plate, 2. column, 3. front wheel, 4. rear wheel, 5. adjustment frame, 6. rear axle, 7. fixed frame, 8. front axle, 9. reel, 10. flexible wire rope, 11, pulley seat, 12, pulley, 13, large gear, 14, weight, 15, pinion, 16, cam, 17, support frame, 18, transition gear, 19, spring, 20, adjustment shaft, 21, adjustment Screw, 22, guide rail, 23, slide block, 24, support block, 25, first guide post, 26, second guide post, 27, keyway.

Detailed ways

The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

As shown in Figures 1 and 2, a carbon-free trolley that can walk in a closed "8" shape includes a base plate 1, a column 2, a front wheel 3 and a rear wheel 4; the column 2 is vertically placed on the base plate 1; The front wheel 3 is swingably connected to the middle position of the front end of the bottom plate 1 through the adjustment frame 5, and the position corresponding to the adjustment frame 5 on the bottom plate 1 is provided to make the front wheel 3 swing by pushing the adjustment frame 5 to make the front wheel 3 swing. The steering mechanism that the wheel 3 turns to; the rear wheel 4 has two, and the two rear wheels 4 are installed on both sides of the rear end of the base plate 1 through the rear axle 6; The rotation of the rear wheel 4 also drives the front wheel 3 to turn through the steering mechanism to make the carbon-free trolley walk a driving device that closes the "8"-shaped track.

The driving device includes a fixed frame 7, a front axle 8, a reel 9 and a flexible wire rope 10; Fixed pulley 12; the front axle 8 is rotatably located at the front part of the base plate 1, and the winding wheel 9 is fixed on the middle part of the front axle 8; corresponding to the front axle 8 on the base plate 1 The side position is provided with a large gear 13 linked with the front axle 8 and used to drive the rear axle 6 to rotate, the rear axle 6 is fixed with a pinion 15, and the bull gear 13 drives the The pinion 15 rotates. One end of the flexible cord 10 is wound on the reel 9, and the other end of the flexible cord 10 is wound upwards around the fixed pulley 12 and then connected downwards to a weight that converts gravitational potential energy into kinetic energy of the reel 9. 14.

The steering mechanism includes a cam 16, a support frame 17 and a spring 19; one side of the adjustment frame 5 is provided with a flange protruding horizontally away from the direction of the large gear 13, and the flange can slide axially. An adjustment shaft 20 is installed, specifically as follows: the flange is provided with a keyway 27, and the adjustment shaft 20 is fixed in different positions in the keyway 27 by screws to adjust the tensile force of the spring 19 and the force closure of the cam 16 thrust to match. An adjusting screw 21 is provided on the bottom plate 1 corresponding to the position directly behind the adjusting shaft 20, and the two ends of the spring 19 are respectively connected to the adjusting shaft 20 and the adjusting screw 21, and the spring 19 Stretching causes the adjustment frame 5 to deflect toward the side facing away from the large gear 13 so as to keep the horizontal radial direction of the front wheel 3 at a certain angle with the axial direction of the bottom plate 1 . The cam 16 is fixed on the end of the front axle 8 away from the large gear 13, and the support frame 17 is at a position corresponding to the cam 16 on the base plate 1; guide rails are provided on the support frame 17 22. A slide block 23 is slidably provided on the guide rail 22, and a support block 24 is provided on the slide block 23; The first guide post 25, on the side away from the cam 16, is provided with a second guide post 26 that stretches the spring 19 and pushes the adjustment shaft 20 to swing the adjustment frame 5 to turn the front wheel 3 .

The following describes the process of the carbon-free trolley walking a closed "8"-shaped trajectory:

At the beginning, the weight 14 is on the top of the column 2, and then the weight 14 falls. During the fall of the weight 14, the flexible wire rope 10 pulls the reel 9 to rotate, and the reel 9 rotates to pass through the front shaft 8, The large gear 13, the transition gear 18, the pinion 15 and the rear axle 6 drive the rear wheel 4, that is, the winding wheel 9 rotates to drive the front axle 8 to rotate, and the front axle 8 rotates to drive the bull gear 13 to rotate synchronously, and the bull gear 13 passes through the transition gear 18 drives the pinion 15 to rotate, and the rotation of the pinion 15 drives the rear wheel 4 to rotate through the rear axle 6, finally realizing that the dolly moves forward. While the trolley is moving forward, the steering mechanism operates synchronously, specifically as follows: while the winding wheel 9 drives the rear wheel 4 to rotate, its other transmission direction drives the cam 16 to rotate through the front axle 8, and the cam 16 rotates through the The first guide post 25 pushes the slide block 23 to slide along the guide rail 22. After the slide block 23 slides, the second guide post 26 pushes the adjustment shaft 20 to swing, and under the action of the spring 19, the adjustment shaft 20 will also swing back when it swings. The adjustment shaft 20 After repeatedly swinging back and forth, the steering of the front wheel 3 is realized through the adjustment frame 5, and the relative position of the second guide post 26 relative to the adjustment shaft 20 is adjusted with an accuracy of 0.01 by related instruments to adjust the initial rotation angle of the front wheel 3, and is fixed on the Different positions in the key groove 27 are used to adjust the stretching force of the spring 19 to match the closing thrust of the cam 16, and finally the carbonless trolley can walk out of a closed "8"-shaped track as expected.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (5)

1. a kind of can walk to close the carbon-free trolley of the figure of eight, which is characterized in that including bottom plate (1), column (2), front-wheel (3) and Trailing wheel (4)；The column (2) is on the bottom plate (1) vertically；The front-wheel (3) passes through the swingable connection of adjusting bracket (5) In the bottom plate (1) front end centre position, corresponds on the bottom plate (1) and be equipped at the position of the adjusting bracket (5) by pushing away Dynamic adjusting bracket (5) swings the steering mechanism to make the front-wheel (3) turn to；There are two the trailing wheels (4), two trailing wheels (4) bottom plate (1) rear end both sides are mounted on by rear axle (6)；It is equipped on the column (2) and institute is driven by gravitional force State trailing wheel (4) rotation also drives front-wheel (3) to turn to so that the carbon-free trolley walking closing figure of eight by the steering mechanism simultaneously The driving device of track.

2. according to claim 1 can walk to close the carbon-free trolley of the figure of eight, which is characterized in that the driving device packet Include fixed frame (7), front axle (8), reel (9) and flexible cords (10)；The fixed frame (7) is in the top of the column (2) Portion is equipped with fixed pulley (12) on the fixed frame (7) by fixed pulley seat (11)；The front axle (8) is rotatably in institute The front of bottom plate (1) is stated, the reel (9) is fixed on the middle part of the front axle (8)；Described in being corresponded on the bottom plate (1) The gear wheel (13) for linking with front axle (8) and being used to that the rear axle (6) to be driven to rotate is equipped at the position of front axle (8) side； The one ends wound of the flexible cords (10) is on the reel (9), after the other end is up around the fixed pulley (12) The weight (14) for the kinetic energy that gravitional force is converted to the reel (9) is connected still further below.

3. according to claim 2 can walk to close the carbon-free trolley of the figure of eight, which is characterized in that solid on the rear axle (6) There are pinion gear (15), the gear wheel (13) to drive the pinion gear (15) to rotate by transition gear (18) surely.

4. according to claim 2 or 3 can walk to close the carbon-free trolley of the figure of eight, which is characterized in that the steering mechanism Including cam (16), supporting rack (17) and spring (19)；The side of the adjusting bracket (5) is equipped with facing away from the gear wheel (13) side It is axially slidable on the flange that adjustment axis (20) is installed to the flange protruded horizontally up, it is corresponding on the bottom plate (1) described in Adjusting screw (21) is equipped at the position in adjustment axis (20) dead astern, the both ends of the spring (19) are connected to the adjusting On axis (20) and the adjusting screw (21), and the spring (19) stretching makes the adjusting bracket (5) towards backwards to the canine tooth The side of wheel (13) is deflected to keep the front-wheel (3) for steering state；

The cam (16) is fixed on the one end of the front axle (8) far from the gear wheel (13), and support frame as described above (17) is fixed It is connected at the position for corresponding to the cam (16) on the bottom plate (1)；Guide rail (22), institute are equipped on support frame as described above (17) It states and is slidably equipped with sliding block (23) on guide rail (22), the sliding block (23) is equipped with supporting block (24)；The supporting block (24) It is upper that the first guide post (25) for touching cam (16) periphery is equipped with close to the side of the cam (16), far from the cam (16) Side be equipped with to stretch the spring (19) and the adjustment axis (20) is pushed to swing the adjusting bracket (5) afterwards and make the front-wheel (3) the second guide post (26) turned to.

5. according to claim 4 can walk to close the carbon-free trolley of the figure of eight, which is characterized in that the flange is equipped with Keyway (27), the adjustment axis (20) are fixed by screws in position different in the keyway (27) to adjust spring (19) Drawing force is to realize the first guide post (25) to the force-closed of cam (16).