Truck with speed change function in double-speed flywheel

Abstract

A truck with a speed change function in a double-speed flywheel comprises a truck bottom plate, an operation room, front wheels, rear wheels and a motor, the front wheels are installed on the two sides of the front end of the bottom of the truck bottom plate respectively, the rear wheels are installed on the two sides of the rear end of the bottom of the truck bottom plate respectively, an output shaft of the motor is connected with a first bevel gear, and the bottom of the truck bottom plate is connected with a vertical rod on the rear side of the motor. The vehicle bottom plate is connected with a cross rod through a vertical rod, one end of the cross rod is connected to a connecting shaft of the two rear wheels, the other end of the cross rod is connected with a second bevel gear, the second bevel gear is in meshing transmission with the first bevel gear, the second bevel gear is coaxially connected with a chain wheel, the connecting shaft of the two rear wheels is connected with a large flywheel and a small flywheel, and the cross rod is connected with a guide wheel through a supporting rod. A chain is wound among the chain wheel, the large flywheel and the small flywheel; and the chain is wound from the chain wheel. The gear shifting mechanism is compact in structure, fast switching of high and low speed gears is achieved through stable bevel gear transmission and chain wrapping connection design, the gear shifting mechanism can meet the power requirements under different load scenes, and the transmission efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a variable speed vehicle technical field especially relates to a double speed flywheel inside variable speed function's truck. BACKGROUND

[0002] Part of truck realizes variable speed function through multistage gear set or external speed changer, but this kind of scheme has the defects such as large size, high maintenance cost, big transmission loss, if the structure of single flywheel and chain drive is adopted, needs to rely on tensioning adjusting device when speed changing, chain slack or deviation is easy to lead to, affects transmission stability, and the scheme of motor direct drive wheel simplifies mechanical structure, but it is difficult to take into account the torque distribution demand of high and low speed gear, especially under heavy load climbing or high speed no load working condition, cannot flexibly switch power mode, therefore, a kind of compact structure, transmission efficient and convenient to operate double speed variable speed system is urgently needed. SUMMARY

[0003] The utility model aims at realizing above-mentioned purpose, and provides a double speed flywheel inside variable speed function's truck.

[0004] The utility model discloses a kind of double speed flywheel inside variable speed function's truck to achieve above-mentioned purpose, using the following technical solutions:

[0005] A kind of double speed flywheel inside variable speed function's truck, including truck bottom plate, operating room, front wheel, rear wheel and motor, the bottom front end of truck bottom plate is installed with one front wheel each side, the bottom rear end of truck bottom plate is installed with one rear wheel each side, motor is fixed in the bottom middle front side of truck bottom plate, the output shaft of motor is connected with first bevel gear, the bottom of truck bottom plate is connected with vertical rod in the rear side of motor, truck bottom plate is connected with crossbar by vertical rod, one end of crossbar is connected on the connecting shaft of two rear wheels, the other end of crossbar is connected with second bevel gear, second bevel gear is engaged transmission with first bevel gear, second bevel gear is coaxially connected with sprocket, large flywheel and small flywheel are connected on the connecting shaft between two rear wheels, guide wheel is connected on crossbar by support rod, chain is wound between sprocket and large flywheel and small flywheel, chain is wound from sprocket, successively passes through large flywheel, guide wheel and small flywheel, and is rewound to sprocket, rotating rod is connected on the connecting shaft between two front wheels, rotating rod passes through truck bottom plate and extends to operating room upwards, rotating disc connected with rotating rod is arranged in operating room, and operating room is also provided with the control knob of motor.

[0006] The large flywheel and small flywheel are connected on the connecting shaft between two rear wheels in right-hand thread mode.

[0007] Second bevel gear and sprocket are coaxially connected to the front end of crossbar.

[0008] The number of teeth and outer diameter of guide wheel are equivalent to the number of teeth and outer diameter of small flywheel.

[0009] The gear number and the outer diameter of the large flywheel are 1.2-1.5 times of the gear number and the outer diameter of the small flywheel.

[0010] The gear number and the outer diameter of the chain wheel are 2.0-3.3 times of the gear number and the outer diameter of the small flywheel.

[0011] The utility model discloses the beneficial effect is: the utility model discloses compact structure, through the stable bevel gear drive and chain winding design, realize high -low speed gear's quick switching, can adapt to the power demand under different load scene, and transmission efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is the overhead view of the utility model's car bottom plate lower structure;

[0014] In the drawing: 1 - car bottom plate;2 - operating room;3 - rotary disc;4 - front wheel;5 - motor;6 - vertical rod;7 - cross bar;8 - rear wheel;9 - large flywheel;10 - small flywheel;11 - guide wheel;12 - support rod;13 - chain wheel;14 - second bevel gear;15 - first bevel gear;16 - output shaft;17 - shaft sleeve;18 - rotary rod;19 - chain;

[0015] The utility model will be described in detail below in combination with the embodiment of the utility model and the attached drawings. DETAILED DESCRIPTION

[0016] The utility model will be described in detail below in combination with the embodiment of the utility model and the attached drawings.

[0017] A double-speed flywheel inner variable speed function truck, comprising a truck bottom plate 1, an operating room 2, front wheels 4, rear wheels 8 and a motor 5, one front wheel 4 is installed on each side of the front end of the bottom of the truck bottom plate 1, one rear wheel 8 is installed on each side of the rear end of the bottom of the truck bottom plate 1, the motor 5 is fixed on the middle front side of the bottom of the truck bottom plate 1, the output shaft 16 of the motor 5 is connected with a first bevel gear 15, the bottom of the truck bottom plate 1 is connected with a vertical rod 6 at the rear side of the motor 5, the truck bottom plate 1 is connected with a horizontal rod 7 through the vertical rod 6, one end of the horizontal rod 7 is connected with the connecting shaft of the two rear wheels 8 through a shaft sleeve 17, the other end of the horizontal rod 7 is connected with a second bevel gear 14, the second bevel gear 14 is engaged with the first bevel gear 15 for transmission, the second bevel gear 14 is coaxially connected with a sprocket wheel 13, the connecting shaft of the two rear wheels 8 is connected with a large flywheel 9 and a small flywheel 10, a guide wheel 11 is connected with the horizontal rod 7 through a support rod 12, the sprocket wheel 13 is connected with the large flywheel 9 and the small flywheel 10 through a chain 19, the chain 19 is wound from the sprocket wheel 13, passes through the large flywheel 9, the guide wheel 11 and the small flywheel 10 in sequence, and is wound back to the sprocket wheel 13, a rotating rod 18 is connected with the connecting shaft between the two front wheels 4, the rotating rod 18 penetrates the truck bottom plate 1 upwards and extends to the operating room 2, a rotating disc 3 connected with the rotating rod 18 is arranged in the operating room 2, and a control button of the motor 5 is arranged in the operating room 2.

[0018] The large flywheel 9 and the small flywheel 10 are connected with the connecting shaft between the two rear wheels 8 in a right-hand thread mode.

[0019] The second bevel gear 14 and the sprocket wheel 13 are coaxially connected to the front end of the horizontal rod 7.

[0020] The number of teeth and the outer diameter of the guide wheel 11 are equivalent to those of the small flywheel 10.

[0021] The number of teeth and the outer diameter of the large flywheel 9 are 1.2-1.5 times those of the small flywheel 10.

[0022] The number of teeth and the outer diameter of the sprocket wheel 13 are 2.0-3.3 times those of the small flywheel 10.

[0023] The utility model discloses a working time, the motor 5 positive rotation, the sprocket 13 rotates clockwise, and under the action of chain 19, drive the big flywheel 9 rotates clockwise, and the big flywheel 9 is driven to rotate the rear wheel 8 through the connecting shaft, and the car drives forward, and drive the guide wheel 11 rotates clockwise, and the small flywheel 10 rotates anticlockwise, and the small flywheel 10 in the jack and the jack in the big flywheel 9 are in the same direction, and the small flywheel 10 only makes the slide of the reverse pulley type, and do not affect the normal forward travel of the car, and the motor 5 reverses rotation, and the sprocket 13 rotates anticlockwise, and under the action of chain 19, drive the big flywheel 9 rotates anticlockwise, but the big flywheel 9 only makes the slide of the reverse pulley type at this time, and the car is invalid, and drive the guide wheel 11 rotates anticlockwise, and the small flywheel 10 rotates clockwise, and the jack of the small flywheel 10 is effective and drives the connecting shaft between the two rear wheels 8 to rotate, that is, drive the rear wheel 8 to rotate, thereby drive the car to drive forward, so, no matter positive rotation or reverse rotation motor 5 car body can drive forward, and chain 19 is always in tension, and it is not easy to drop the chain, and the motor 5 can be recycled when pausing or reversing during normal driving of the car, improve the transmission efficiency, and simultaneously realize the quick switching of high and low speed gears to adapt to the power demand under different load scenes.

[0024] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model.

[0025] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0026] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's interaction relation, unless another definite limitation. For ordinary skilled person in the art, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0027] The utility model has been described above in conjunction with the drawings, obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various improvements using the method concept and technical scheme of the utility model or direct application in other occasions without improvement are all within the protection scope of the utility model.

Claims

1. A heavy-duty vehicle with a dual-speed flywheel internal gear shift function, characterized in that, The vehicle includes a chassis (1), an operating cab (2), front wheels (4), rear wheels (8), and a motor (5). A front wheel (4) is installed on each side of the bottom front end of the chassis (1), and a rear wheel (8) is installed on each side of the bottom rear end of the chassis (1). The motor (5) is fixed to the front middle side of the bottom of the chassis (1). A first bevel gear (15) is connected to the output shaft (16) of the motor (5). A vertical rod (6) is connected to the bottom of the chassis (1) behind the motor (5). The chassis (1) is connected to a horizontal rod (7) via the vertical rod (6). One end of the horizontal rod (7) is connected to the connecting shaft of the two rear wheels (8) via a bushing (17). The other end of the horizontal rod (7) is connected to a second bevel gear (14). The second bevel gear (14) meshes with the first bevel gear (15) for transmission. A sprocket (13) is coaxially connected to the wheel (14). A large flywheel (9) and a small flywheel (10) are connected to the connecting shaft of the two rear wheels (8). A guide wheel (11) is connected to the crossbar (7) via a support rod (12). A chain (19) is wound between the sprocket (13), the large flywheel (9), and the small flywheel (10). The chain (19) starts from the sprocket (13), passes through the large flywheel (9), the guide wheel (11), and the small flywheel (10), and then winds back to the sprocket (13). A rotating rod (18) is connected to the connecting shaft between the two front wheels (4). The rotating rod (18) passes upward through the vehicle floor (1) and extends to the operating room (2). The operating room (2) is equipped with a rotating disk (3) connected to the rotating rod (18). The operating room (2) is also equipped with a control button for the motor (5).

2. A heavy-duty vehicle with a dual-speed flywheel internal transmission function according to claim 1, characterized in that, The large flywheel (9) and the small flywheel (10) are connected to the connecting shaft between the two rear wheels (8) by a right-hand threaded connection.

3. A heavy-duty vehicle with a dual-speed flywheel internal transmission function according to claim 2, characterized in that, The second bevel gear (14) and sprocket (13) are coaxially connected to the front end of the crossbar (7).

4. A heavy-duty vehicle with a dual-speed flywheel internal transmission function according to claim 3, characterized in that, The number of teeth and outer diameter of the guide wheel (11) are comparable to those of the small flywheel (10).

5. A heavy-duty vehicle with a dual-speed flywheel internal transmission function according to claim 4, characterized in that, The number of teeth and outer diameter of the large flywheel (9) are 1.2 to 1.5 times that of the small flywheel (10).

6. A heavy-duty vehicle with a dual-speed flywheel internal transmission function according to claim 5, characterized in that, The number of teeth and outer diameter of the sprocket (13) are 2.0 to 3.3 times that of the small flywheel (10).

Images