CN102527056B - Pipeline vehicle - Google Patents

Abstract

The invention discloses a pipeline car, which includes a car body, wheels assembled at the front and rear of the car body, and a motor and its power supply installed on the car body for driving the driving wheels in the wheels. There are three sets of driving wheels at the same end of the car body at the front and rear ends , uniformly distributed in the circumferential direction based on the front and rear axes of the car body, the transmission mechanism connected between the driving wheel and the motor is configured, so that the driving wheels turn to the same direction. The pipeline car according to the present invention is more entertaining and has less post-maintenance.

Description

pipe truck

technical field

The invention relates to a children's toy, in particular to a pipe car that can run in a pipe-shaped channel.

Background technique

Among children's toys, there is a toy car that can run in a pipe, called a pipe car, to distinguish it from a rail car. Because pipelines can be laid out in various intricate forms, especially simple layout in the air, pipeline vehicles shuttle among them, which is more entertaining and has a relatively large market prospect.

The basic structure of existing pipeline vehicles is similar to conventional motor vehicles, usually including front wheels and rear wheels, wherein, the front wheels are generally one or two, the rear wheels are generally a pair, and usually adopt rear drive. Due to the layout of conventional vehicles, the inevitable problem is the overturning of the pipeline car. Once overturned, the driving wheels will lose their function, making it difficult to perform. Therefore, under normal conditions, the pipeline truck needs to maintain a high operating speed to ensure that the pipeline truck can run reliably in the pipeline through centrifugal force when turning or running in a circular pipeline.

High-speed shuttle can bring a certain amount of entertainment, but too high speed is more likely to cause visual fatigue, and the gameplay is relatively simple, and the operability is biased. Therefore, one option is to simplify the running pipeline as much as possible and reduce the high-speed bend and vertical loop, but this undoubtedly reduces the entertainment.

Another option is to increase the wheel diameter and reduce the pipe diameter. The wheel diameter is greater than the overall height of the pipe truck, and the wheels occupy a relatively large proportion of the pipe truck, which leads to deviations in aesthetics. Another defect is based on the principle of instantaneous center of velocity. For a rotating wheel, the direction of linear velocity at each point on the wheel is different, and there is always a pair of linear velocities on the same diameter in opposite directions. That is to say, if the pipeline If the car overturns, the inevitable result is that the pipeline car will go backwards. If one driving wheel runs backwards and the other drives forward, a force couple will be generated, which will cause the car body to rotate and be constrained by the pipeline at the same time, which may cause damage or even disintegration of the pipeline car.

Due to the relatively closed nature of the pipeline, once the pipeline truck is stagnant or damaged, it will become very difficult to overhaul the pipeline truck or the pipeline.

Contents of the invention

Therefore, the object of the present invention is to provide a pipeline truck with higher entertainment and less maintenance in the later period.

In order to achieve the above object, the present invention adopts the following technical solutions:

A pipeline car, including a car body and wheels assembled at the front and rear of the car body, and a motor and its power supply installed on the car body for driving the driving wheels in the wheels. There are three groups of driving wheels at the same end at the front and rear ends of the car body. The front and rear axes of the body are evenly distributed in the circumferential direction, and the transmission mechanism connected between the driving wheel and the motor is configured so that the driving wheels turn to the same direction.

According to the above structure, the driving wheels are designed into three groups, which are evenly distributed in the circumferential direction of the front and rear axes of the car body, which can ensure that no matter what state the car body is in, there will be two groups of driving wheels in contact with the running pipeline, and there is no problem of car body overturning. Therefore, when the pipeline vehicle according to the above-mentioned scheme of the present invention is running in the existing high-speed bend and vertical circular pipeline, the use of centrifugal force to keep the pipeline vehicle in a state can no longer be considered, thereby making the speed selection of the pipeline vehicle more flexible. room, even if it is operated at a lower speed, it will not cause the pipeline truck to overturn. On the other hand, a variety of choices in terms of speed can greatly improve the entertainment of the pipe car.

It can be seen from the above description that under this technical condition, the maintenance links of the pipeline truck will be reduced, and the later maintenance will be less.

From the perspective of cost control, the additional cost of the toy car is limited, and the novel car body layout will weaken the impact of the cost. In addition, the steering of the driving wheels is the same. When the running state of the pipeline car changes due to external force or other factors during the driving process of the two sets of driving wheels, it is foreseeable that at least one of the driving wheels must still participate in the driving, especially This change is only a change in the position of the group of driving wheels in the same driving direction (the wheel swings, which is different from turning over, and the driving direction remains unchanged), the driving direction does not change, and the addition of another group of driving wheels that rotates in the same direction also It will not affect the change of the driving direction and ensure the continuity of the running direction of the pipeline truck.

The above-mentioned pipeline car is arranged radially radially in the circumferential direction of the car body at the same end of the driving wheel.

Above-mentioned pipe car, driving wheel is rear wheel.

In the pipeline car mentioned above, the output shaft of the motor is arranged horizontally at the front and rear of the car body, and the output spur gear mounted on the output shaft in the transmission mechanism is meshed with three driven gears, and each driven gear is coaxially connected to a Active crown gear; Correspondingly, each set of driving wheels is equipped with a passive crown gear, and a transmission spur gear is arranged between the active crown gear and the passive crown gear.

In the above pipeline vehicle, each set of driving wheels has a driving wheel, and the axis of the driven crown gear coaxially mounted on the driving wheel is perpendicular to the axis of the driving crown gear.

In the above pipeline vehicle, the crown gear and the coaxial driven gear are integrated, and the outer diameter of the part connecting the two is the same as that of the crown gear.

The above-mentioned pipeline car is provided with a reduction box for installing the transmission mechanism at the rear end of the car body.

The above pipeline car is provided with an independent battery compartment on the car body.

In the aforementioned pipeline vehicle, at least the driving wheel among the wheels includes a rim and a tire mounted on the rim.

Description of drawings

Fig. 1 is an exploded view of a pipeline truck according to the technical solution of the present invention.

Fig. 2 is a schematic diagram of the configuration structure of the driving wheel and its driving device.

Fig. 3 is an overall layout diagram of a pipeline truck.

In the figure: 1. tire, 2. rim, 3. compartment cover, 4. keyhole, 5. front wheel, 6. battery compartment, 7. lock, 8. motor, 9. gearbox, 10. cover, 11, driven crown gear, 12, transmission spur gear, 13, driven gear, 14, driving crown gear.

Detailed ways

Referring to the accompanying drawing 3 of the manual, a brand-new wheel train arrangement is adopted. In the figure, the lower end is the front end of the pipeline car, and the corresponding front wheel 5 is the road wheel. Of course, it can also be configured as a front and rear drive, but the cost is better , and often become unnecessary on the toy car, the operating conditions of the toy car are relatively simple, and the front and rear drive are relatively only a luxury option, but the inventor does not rule out this option.

It can be seen in Fig. 3 that the front end and the rear end of the pipeline vehicle respectively have three wheels, the pipeline vehicle body is in a cylindrical structure, and the three wheels at each end are evenly distributed along the circumference of the vehicle body. A simple reasoning, assuming that Figure 3 is the initial walking state, when the pipeline car reverses clockwise, the lower right wheel is equivalent to a swing, and the contact line is still on the lower side of the wheel, that is, the driving direction has not changed . Completely different from the two-wheel structure, the two-wheel structure will therefore make the upper side of the wheel contact the road surface, and the linear velocity direction is completely opposite to the initial direction. Therefore, according to the pipeline vehicle of the above structure, the previous running direction can be maintained even if the vehicle body is overturned.

In Fig. 3, the body of the pipeline truck is in a cylindrical structure as a whole, but it can be foreseen that, based on this structure, it can also be configured into a structure with a chassis of an ordinary vehicle. The difference is that an additional driving wheel is set on the upper side of the chassis. . The state shown in Figure 3 represents the basic state, that is, a certain two groups of wheels are selected as the basic wheels to limit the initial walking state of the pipeline vehicle. In comparison, the corresponding two groups of wheels are also more likely to be worn. Therefore, the corresponding The wheels of the wheel are preferably configured as a detachable structure. For a toy car, mostly an interference connection between the rim 2 and the axle shaft is easier to assemble. Of course, it is best to use surface connection.

In Fig. 3, in order to simplify the structure, the wheel is provided with a seat, and an arc-shaped groove is formed on the vehicle body for partially accommodating the wheel.

The pipeline car as shown in Figure 1 is driven by a motor 8, and the car body is equipped with a power supply. The power supply can be a dry battery or a rechargeable battery. In the figure, the driving wheel is a rear wheel. It can be imagined that the reduction box has three output shafts. In a large-scale reduction mechanism, dozens of output shafts are relatively common. Therefore, it is very easy to realize three output shafts with constant speed.

Of course, the output shaft is only a way of expression. Naturally, output components such as pulleys and gears can be added to the output shaft. It is very common, and the structure is relatively compact, which is suitable for occasions such as toy cars where the transmission torque is relatively small.

It should be noted that when the vehicle is moving forward, the steering of the wheels generally turns clockwise, which will not be repeated here.

Regarding the wheels, the usual choices are single-wheel and double-wheel structures, that is, each group corresponds to one wheel or two wheels. From the perspective of appearance, you can choose according to your needs. There is a certain value within a limited range. If the structure of two wheels per group is adopted, the rearranged wheels are arranged coaxially and integrally, and the driving part is arranged in the middle of the two wheels, such as a gear is arranged to mesh with an output gear of the reduction box. The loads received by the seat supporting the two wheels are relatively uniform, the stress environment is relatively simple, and the service life will be longer.

Referring to accompanying drawings 2 and 3, the driving wheels at the same end are radially arranged in the circumferential direction of the vehicle body, that is, the axis of the driving wheel is perpendicular to the corresponding radial direction. If the car body is configured in a relatively balanced load state, that is, without strictly removing the aforementioned chassis structure, a cylindrical car body as shown in Figure 3 will be produced, which may cause the pipe car to rotate and advance. The situation will be more entertaining.

Of course, as mentioned earlier, it can also be configured to include a nominal chassis structure. Under this structural condition, the axis of the driving wheel has a certain included angle with the corresponding radial direction. In the structure shown in Figure 2, the included angle between adjacent drive wheel axes is 60 degrees, and the torsional shear force on the wheel shaft is relatively large. When it is configured as a nominal chassis structure, the included angle can be relatively increased to reduce Additional torsional shear force.

As mentioned above, it is best to use a single-end drive, and preferably a rear-wheel drive, which has a simple structure and low manufacturing cost. When adopting the front and rear end drives, the corresponding motor 8 can adopt a double output shaft motor, and the reduction box 9 can be symmetrically arranged one by one.

The arrangement state of the motor 8 is generally arranged horizontally, especially in the case of three sets of driving wheels, it is best to adopt this arrangement, which is beneficial to the transmission mechanism with a relatively simple structure. This creates a transmission between the orthogonal axes.

The conventional choice is to use bevel gears for transmission, and this structure can also be used in this scheme. However, bevel gear transmission has its inherent defects. As shown in Figure 2, when a driving wheel is driven by a bevel gear, the usual configuration structure is that the bevel gear needs to be coaxially arranged with the driving wheel, and the overall structure will not be compact enough.

Therefore, a better choice is to use crown gears to realize the transmission between orthogonal shafts. The tooth shape of the crown gear is not formed on the circumference of the gear body like ordinary gears, but on the end face of the gear body. Figure 2 clearly shows the structure of the crown gear. The crown gear is directly formed on the hub of the wheel , the structure is more compact. However, due to the relatively small tooth width, it cannot transmit a large load, but in the field of toys, it usually does not need to transmit a relatively large load, and it can have better applicability.

As shown in Figure 1, the output shaft of the motor 8 is arranged horizontally, and the output spur gear mounted on the output shaft in the transmission mechanism is engaged with three driven gears 13, and each driven gear 13 is coaxially connected There is a driving crown gear 14; correspondingly, each group of driving wheels is equipped with a passive crown gear 11, and a transmission spur gear 12 is arranged between the driving crown gear and the passive crown gear. This configuration structure is reflected in the overall layout shown in Figure 3. The overall structure at the drive wheel end is relatively compact.

Preferably, to facilitate the arrangement of the transmission spur gear, the axis of the driven crown gear 11 coaxially mounted on the driving wheel is perpendicular to the axis of the driving crown gear 14 .

The crown gear and the coaxial driven gear are integrally structured, and the outer diameter of the part connecting them is the same as that of the crown gear, so the manufacture is relatively simple and the structural strength is also high. Moreover, since the transmission parts on the toy car are mostly plastic structures, the injection molding process can ensure that a product structure with a relatively complex structure can be produced.

Referring to the accompanying drawing 1 of the specification, an independent battery compartment 6 is arranged on the vehicle body, and a compartment cover 3 protects the batteries in the battery compartment through a lock 7, and provides an attractive appearance at the same time. .

Preferably, among the wheels, at least the driving wheel includes a rim and a tire 1 mounted on the rim 2, which is convenient for replacing the tire 1 that is relatively easy to wear.

Claims (8)

1. A pipeline car, comprising a car body and wheels assembled at the front and rear of the car body, and a motor and a power supply thereof installed on the car body for driving the driving wheels in the wheels, it is characterized in that the same end driving wheels at the front and rear ends of the car body There are three groups, which are evenly distributed in the circumferential direction based on the front and rear axes of the car body, and the transmission mechanism connected between the driving wheel and the motor is configured to make the driving wheels turn in the same direction; The output shaft of the motor is arranged horizontally at the front and back of the car body, and the output spur gear mounted on the output shaft in the transmission mechanism meshes with three driven gears, and each driven gear is coaxially connected with a driving crown gear; Correspondingly, each group of driving wheels is equipped with a passive crown gear, and a transmission spur gear is arranged between the driving crown gear and the passive crown gear. 2 . The pipeline vehicle according to claim 1 , wherein the drive wheels at the same end are radially arranged in the circumferential direction of the vehicle body. 3 . 3. The pipeline truck according to claim 1 or 2, characterized in that the driving wheels are rear wheels. 4. The pipeline vehicle according to claim 1, wherein each set of driving wheels has a driving wheel, and the axis of the driven crown gear coaxially mounted on the driving wheel is coaxial with the axis of the driving crown gear. Orthogonal. 5 . The pipeline vehicle according to claim 1 , wherein the crown gear and the coaxial driven gear are integrated, and the outer diameter of the part connecting them is the same as that of the crown gear. 6. The pipeline vehicle according to claim 1, characterized in that a reduction box for installing the transmission mechanism is provided at the rear end of the vehicle body. 7. The pipeline vehicle according to claim 1, characterized in that an independent battery compartment is provided on the vehicle body. 8 . The pipeline vehicle according to claim 1 , wherein at least the driving wheel among the wheels includes a rim and a tire mounted on the rim.

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