CN220939087U - Gravitational potential energy trolley - Google Patents

Abstract

The utility model belongs to the technical field of carbonless trolleys, and provides a gravitational potential energy trolley which comprises a frame, wherein two sides of one end of the frame are respectively and rotatably connected with a driving wheel and a driven wheel, a three-stage gear reduction part is arranged in the frame and is in transmission connection with the driving wheel, and a speed reduction wire reel is in transmission connection with the three-stage gear reduction part; the heavy hammer cabin is vertically and slidably connected with a heavy hammer, and one end of a silk thread is fixedly connected on the heavy hammer; the two ends of the outer wall of the speed reduction wire spool are respectively provided with a primary circular groove and a secondary circular groove, the middle of the outer wall of the speed reduction wire spool is provided with a spiral groove, the primary circular groove and the secondary circular groove are communicated through the spiral groove, and one end of the silk thread far away from the heavy hammer is wound and connected in the primary circular groove, the secondary circular groove and the spiral groove. The trolley has a mild running speed, and the situation of turning over caused by too high running speed of the trolley can not occur.

Description

A Gravitational Potential Energy Car

Technical Field

The utility model belongs to the technical field of carbon-free trolleys, in particular to a gravity potential energy trolley.

Background technique

The gravity potential energy trolley is a trolley that can convert gravity potential energy into mechanical energy, so that it can travel along a specified route. The kinetic energy of the trolley comes from a heavy hammer of a certain weight. When the heavy hammer is lifted to a certain height, it uses its own gravity to fall, and drives a series of gear transmission groups through the silk thread, so that the gravity potential energy is converted into kinetic energy, driving the wheels into a driving force for moving forward, completing the preset obstacle piles and walking distance. It is not difficult to conclude from the walking conditions of various existing gravity potential energy trolleys that the gravity potential energy trolley will continue to accelerate as the heavy hammer falls. If the trolley travels too fast, it will cause the trolley to roll over when turning. It is also easy to roll over when the trolley suddenly turns during its travel. These are all problems that need to be avoided as much as possible to improve the smooth operation of the trolley.

Utility Model Content

The utility model aims to provide a gravity potential energy trolley to solve the above problems and achieve the purpose of slowing down the walking speed, accurately walking the route, and avoiding the situation of acceleration and sharp turns.

To achieve the above purpose, the utility model provides the following solution: a gravity potential energy vehicle, comprising:

A frame, wherein both sides of one end of the frame are rotatably connected to a driving wheel and a driven wheel, a three-stage gear reduction component is arranged inside the frame, the three-stage gear reduction component is transmission-connected to the driving wheel, and a reduction winding disk is transmission-connected inside the three-stage gear reduction component;

A weight chamber, wherein the weight chamber is arranged in the frame, a weight height fine-tuning member is arranged on the top of the weight chamber, a weight is vertically slidably connected in the weight chamber, and one end of a silk thread is fixedly connected to the weight;

A primary annular groove and a secondary annular groove are respectively provided at both ends of the outer wall of the deceleration winding disk, and a spiral groove is provided in the middle of the outer wall of the deceleration winding disk. The primary annular groove and the secondary annular groove are connected through the spiral groove, and the end of the silk wire away from the weight bypasses the weight height fine-tuning part and is wound around the primary annular groove, the secondary annular groove and the spiral groove.

Preferably, the diameter of the primary annular groove is smaller than the diameter of the secondary annular groove, and the diameter of the spiral groove gradually decreases from the secondary annular groove toward the primary annular groove.

Preferably, the first gear shaft of the three-stage gear reduction component is transmission connected to the driving wheel, one end of the third gear shaft of the three-stage gear reduction component is transmission connected to a cam, and the reduction winding disk is fixedly sleeved on the second gear shaft of the three-stage gear reduction component.

Preferably, a steering mechanism is provided at one end of the frame away from the driving wheel, and the steering mechanism includes a steering shaft rotatably connected to the frame, the bottom of the steering shaft is rotatably connected to the steering wheel, the top of the steering shaft is fixedly connected to one end of a connecting block, a contact rod is horizontally fixedly connected to the connecting block, and the contact rod is arranged corresponding to the outer contour of the cam.

Preferably, a projection area of the outer contour of the cam in a direction perpendicular to the traveling direction of the frame is more than twice a projection area of the outer contour of the frame in a direction perpendicular to the traveling direction of the frame.

Preferably, the weight height fine-adjustment component includes a fixed pulley, an adjustable pulley and a top wheel support component fixedly connected to the top of the weight cabin, a through slot is provided downwardly on the top of the top wheel support component, the fixed pulley is rotatably connected to one end of the through slot, the fixed pulley is located above the weight, and a plurality of adjustable pulley fixing slots are provided at the other end of the through slot in a direction away from the fixed pulley, the adjustable pulley is correspondingly arranged in one of the adjustable pulley fixing slots, and the silk thread is correspondingly arranged with the fixed pulley and the adjustable pulley.

Compared with the prior art, the utility model has the following advantages and technical effects: the main function of the driving wheel is to drive the frame forward under the drive of the primary gear shaft; the main function of the weight height fine-tuning part is to accurately lift the weight to a specified height in the weight compartment; the main function of the reduction winding disk is to use the silk thread wound in different grooves to convert the gravity potential energy of the weight into the mechanical energy of the three-stage gear reduction component, and at the same time prevent the three-stage gear reduction component from driving the driving wheel to rotate too fast. On the whole, the gravity potential energy trolley of the utility model has a moderate travel speed, and will not overturn due to the excessive speed of the trolley.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of the gravity potential energy trolley of the utility model;

FIG2 is a schematic diagram of a deceleration winding drum of the utility model;

FIG3 is a schematic diagram of a cam of the utility model;

FIG4 is a schematic diagram of a weight height fine-tuning member of the utility model;

Among them, 1. frame; 2. cam; 3. deceleration winding drum; 4. driving wheel; 5. driven wheel; 6. weight; 7. steering mechanism; 8. weight cabin; 9. weight height fine-tuning part; 10. steering shaft; 11. primary annular groove; 12. secondary annular groove; 13. secondary gear shaft; 14. spiral groove; 15. contact rod; 16. steering wheel; 17. top wheel support; 18. fixed pulley; 19. adjustable pulley; 20. adjustable pulley fixing groove; 21. fixed pulley fixing hole; 22. connecting block.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

1 to 4, the utility model provides a gravity potential energy vehicle, comprising:

A frame 1, a driving wheel 4 and a driven wheel 5 are rotatably connected on both sides of one end of the frame 1, a three-stage gear reduction component is arranged inside the frame 1, the three-stage gear reduction component is transmission-connected with the driving wheel 4, and a reduction winding drum 3 is transmission-connected inside the three-stage gear reduction component;

A weight chamber 8 is provided in the frame 1, a weight height fine-tuning member 9 is provided on the top of the weight chamber 8, a weight 6 is vertically slidably connected in the weight chamber 8, and one end of a silk thread is fixedly connected to the weight 6;

A primary annular groove 11 and a secondary annular groove 12 are respectively provided at both ends of the outer wall of the deceleration winding drum 3, and a spiral groove 14 is provided in the middle of the outer wall of the deceleration winding drum 3. The primary annular groove 11 and the secondary annular groove 12 are connected through the spiral groove 14, and the end of the silk thread away from the weight 6 bypasses the weight height fine-tuning part 9 and is wound around the primary annular groove 11, the secondary annular groove 12 and the spiral groove 14.

The main function of the driving wheel 4 is to drive the frame 1 to move forward under the drive of the primary gear shaft; the main function of the weight height fine-tuning member 9 is to accurately lift the weight 6 to a specified height in the weight chamber 8; the main function of the reduction winding disk 3 is to convert the gravity potential energy of the weight 6 into mechanical energy of the third-stage gear reduction member by winding the silk thread in different grooves, and at the same time prevent the third-stage gear reduction member from driving the driving wheel 4 to rotate too fast. On the whole, the gravity potential energy trolley of the utility model has a moderate travel speed, and will not overturn due to the trolley's excessive travel speed.

According to a further optimization scheme, the diameter of the primary annular groove 11 is smaller than the diameter of the secondary annular groove 12 , and the diameter of the spiral groove 14 gradually decreases from the secondary annular groove 12 to the primary annular groove 11 .

Since the height of the weight 6 and the speed obtained by the potential energy car are in a quadratic function relationship, the car will continue to accelerate as the weight 6 falls, and the acceleration will cause the potential energy car to lose control when passing a curve, causing the vehicle's driving trajectory to deviate from the expected curve path, and then drift or tilt excessively and roll over.

As shown in Figures 1 and 2, in order to prevent the above situation from happening, the wire is first wound from the larger diameter secondary annular groove 12, and then wound along the spiral groove 14 to the smaller diameter primary annular groove 11. When the trolley starts, the wire is wound on the larger diameter secondary annular groove 12, which makes the trolley have a larger starting speed, so that the trolley starts from a standstill. After the speed is increased, the wire follows the spiral groove 14, and the winding radius decreases step by step. The acceleration is also controlled to gradually decrease. Finally, after the wire is wound to the smaller diameter primary annular groove 11, the speed remains constant and moves at a uniform speed, and finally the trolley is accelerated uniformly and at a uniform speed.

According to a further optimization scheme, the first gear shaft of the three-stage gear reduction component is transmission-connected to the driving wheel 4, one end of the third gear shaft of the three-stage gear reduction component is transmission-connected to the cam 2, and the reduction winding drum 3 is fixedly sleeved on the second gear shaft 13 of the three-stage gear reduction component.

As shown in Figure 1, the three-stage gear reduction component is a common structure, so the specific structure is not repeated. The transmission ratio of the three-stage gear reduction component of the utility model is set to 50. While the weight 6 drives the reduction winding disk 3 to rotate through the silk thread, the reduction winding disk 3 drives the secondary gear shaft 13 to rotate, and the secondary gear shaft 13 drives the primary gear shaft to rotate through the gear transmission, and the rotation of the primary gear shaft can drive the driving wheel 4 to rotate. At the same time, the secondary gear shaft 13 drives the third gear shaft to rotate through the gear transmission, and the rotation of the third gear shaft drives the cam 2 to rotate.

A further optimized solution is that a steering mechanism 7 is provided at one end of the frame 1 away from the driving wheel 4, and the steering mechanism 7 includes a steering shaft 10 rotatably connected to the frame 1, and the bottom of the steering shaft 10 is rotatably connected to a steering wheel 16, and the top of the steering shaft 10 is fixedly connected to one end of a connecting block 22, and a contact rod 15 is horizontally fixedly connected to the connecting block 22, and the contact rod 15 is arranged corresponding to the outer contour of the cam 2.

As shown in Figures 1 and 2, since the driving wheel 4 is located on one side of the frame 1, the rotation of the driving wheel 4 will drive the frame 1 to deflect to one side. Therefore, during the movement of the trolley, the frame 1 will have a turning tendency, and the turning tendency causes the steering shaft 10 to have a corresponding turning tendency through the steering wheel 16, so that the steering shaft 10 drives the contact rod 15 to always contact the side of the cam 2. During the movement of the trolley, the cam 2 rotates, the contact rod 15 slides along the outer contour of the cam 2, and the contact rod 15 drives the steering wheel 16 to swing at a designed angle through the steering shaft 10, and finally achieves the effect of controlling the trolley to move along the specified route.

According to a further optimization scheme, the projection area of the outer contour of the cam 2 in the direction perpendicular to the traveling direction of the frame 1 is more than twice the projection area of the outer contour of the frame 1 in the direction perpendicular to the traveling direction of the frame 1 .

As shown in FIG3 , the cam 2 uses program software to design a specific outer contour, and controls the operation of the steering mechanism 7 through the contact between the outer contour and the steering mechanism 7. Different from the small cam structure of other gravity potential energy vehicles, the side projection area of the cam 2 of the utility model is more than twice the side projection area of the frame. Compared with the small cam, the cam position curvature is larger, and dead points are prone to occur, which makes the vehicle stuck and unable to move forward, and makes the early shunting and later cam repair more difficult. The transmission ratio of the small cam is larger than that of the large cam, which affects the overall layout of the vehicle. The cam 2 of the utility model has a larger circumference, so that the curvature of each position is very small, and the pressure angle of the turning position is also very small, and there will be no four points; and when debugging the vehicle in the later stage, the outer contour of the cam 2 inevitably has processing deviations, so when the path deviation occurs, it is necessary to grind the side. The large-sized cam 2 is conducive to grinding, because it will not have a great impact on the trajectory of the vehicle due to slight grinding. The path can be tested after the cam is ground in a sustainable manner to adjust back to the initial path, which is conducive to finally achieving the best walking route.

A further optimization scheme is provided, in which the weight height fine-tuning member 9 comprises a fixed pulley 18, an adjustable pulley 19 and a top wheel support member 17 fixedly connected to the top of the weight cabin 8, a through groove being provided downwardly at the top of the top wheel support member 17, the fixed pulley 18 being rotatably connected to one end of the through groove, the fixed pulley 18 being located above the weight 6, and a plurality of adjustable pulley fixing grooves 20 being provided at the other end of the through groove in a direction away from the fixed pulley 18, the adjustable pulley 19 being correspondingly arranged in an adjustable pulley fixing groove 20, and the silk thread being correspondingly arranged to the fixed pulley 18 and the adjustable pulley 19.

In order to allow the trolley to travel a fixed distance, the weight 6 will be lifted to a specified height in the weight chamber 8. If it is too high or too low, the trolley will exceed the set track or fail to reach the specified destination within the limited gravitational potential energy. The existing height adjustment is all done by changing the number of turns of the silk thread. This method can only roughly adjust the height and cannot play a role in fine adjustment.

As shown in Fig. 1 and Fig. 4, a fixed pulley fixing hole 21 is provided on the side wall of the top wheel support 17, and the fixed pulley 18 is rotatably connected in the through groove through the fixed pulley fixing hole 21. Four adjustable pulley fixing grooves 20 are provided on the top wheel support 17. The adjustable pulley 19 can be placed in different adjustable pulley fixing grooves 20. When the adjustable pulley 19 is located in the adjustable pulley fixing groove 20 farthest from the fixed pulley 18, the weight 6 is correspondingly lifted to the highest position due to the increase in the distance between the fixed pulley 18 and the adjustable pulley 19. When the adjustable pulley 19 is located in the adjustable pulley fixing groove 20 closest to the fixed pulley 18, the weight 6 is lifted to the lowest position. In this way, the function of fine-tuning the height of the weight 6 can be achieved.

The working process of this embodiment is as follows: the cam 2 is rotated to rotate the deceleration winding disc 3, and the wire starts from the larger diameter secondary annular groove 12, and then winds along the spiral groove 14 to the smaller diameter primary annular groove 11. At this time, the weight 6 is raised in the weight chamber 8, and then the adjustable pulley 19 is placed in the appropriate adjustable pulley fixing groove 20 to make the weight 6 at a specified height. The gravity potential energy trolley is placed at the location, and the gravity potential energy trolley is released, and the gravity potential energy trolley can move along the specified route.

In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims (6)

1. A gravitational potential energy cart, comprising:

The automatic wire winding device comprises a frame (1), wherein a driving wheel (4) and a driven wheel (5) are respectively and rotatably connected to two sides of one end of the frame (1), a three-stage gear reduction part is arranged in the frame (1), the three-stage gear reduction part is in transmission connection with the driving wheel (4), and a reduction wire winding disc (3) is in transmission connection with the three-stage gear reduction part;

The weight cabin (8), weight cabin (8) is set up in the said frame (1), the top of the said weight cabin (8) has weight height fine tuning pieces (9), the vertical sliding connection has weight (6) in the said weight cabin (8), fixedly connect with one end of the silk thread on the said weight (6);

One-level ring groove (11) and second grade ring groove (12) have been seted up respectively at speed reduction wire reel (3) outer wall both ends, spiral recess (14) have been seted up in the middle of the outer wall of speed reduction wire reel (3), pass through between one-level ring groove (11), second grade ring groove (12) spiral recess (14) intercommunication, the silk thread is kept away from one end of weight (6) is walked around weight height fine setting piece (9) and is in the joint one-level ring groove (11), second grade ring groove (12) with in spiral recess (14).

2. A gravitational potential energy cart in accordance with claim 1, wherein: the diameter of the primary annular groove (11) is smaller than that of the secondary annular groove (12), and the diameter of the spiral groove (14) gradually decreases from the secondary annular groove (12) to the primary annular groove (11).

3.A gravitational potential energy cart in accordance with claim 1, wherein: the one-stage gear shaft of tertiary gear reduction is connected with action wheel (4) transmission, the one end transmission of tertiary gear shaft of tertiary gear reduction is connected with cam (2), speed reduction wire reel (3) fixed cover is established on tertiary gear reduction's secondary gear shaft (13).

4. A gravitational potential energy cart as claimed in claim 3, wherein: the bicycle frame is characterized in that a steering mechanism (7) is arranged at one end, far away from the driving wheel (4), of the bicycle frame (1), the steering mechanism (7) comprises a steering shaft (10) which is rotationally connected to the bicycle frame (1), a steering wheel (16) is rotationally connected to the bottom of the steering shaft (10), one end of a connecting block (22) is fixedly connected to the top of the steering shaft (10), a contact rod (15) is horizontally and fixedly connected to the connecting block (22), and the contact rod (15) is correspondingly arranged with the outline of the cam (2).

5. A gravitational potential energy cart as claimed in claim 3, wherein: the projection area of the outer contour of the cam (2) in the direction perpendicular to the advancing direction of the frame (1) is more than twice the projection area of the outer contour of the frame (1) in the direction perpendicular to the advancing direction of the frame (1).

6. A gravitational potential energy cart in accordance with claim 1, wherein: the weight height fine tuning piece (9) comprises a fixed pulley (18), an adjustable pulley (19) and a top wheel supporting piece (17) fixedly connected to the top of the weight cabin (8), a through groove is formed in the top of the top wheel supporting piece (17) downwards, the fixed pulley (18) is rotationally connected to one end of the through groove, the fixed pulley (18) is located above the weight (6), a plurality of adjustable pulley fixing grooves (20) are formed in the other end of the through groove along the direction away from the fixed pulley (18), the adjustable pulley (19) is correspondingly arranged in the adjustable pulley fixing grooves (20), and the silk threads are correspondingly arranged with the fixed pulley (18) and the adjustable pulley (19).