CN217108130U

CN217108130U - Speed reducer for playground vehicle

Info

Publication number: CN217108130U
Application number: CN202220403067.XU
Authority: CN
Inventors: 冯明星; 何汉明
Original assignee: Chongqing Qiaoguan New Energy Auto Parts Manufacturing Co ltd
Current assignee: Chongqing Qiaoguan New Energy Auto Parts Manufacturing Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-08-02
Anticipated expiration: 2032-02-25

Abstract

The utility model relates to a playground vehicle equipment technical field discloses a reduction gear for playground car, include: casing, horn tooth, basin tooth, integral key shaft, afterburning drive tooth and semi-axis coupling mechanism, the hole at casing top is stretched out the casing from the top of the axle of horn tooth, and the gear of horn tooth is located the casing, basin tooth and afterburning drive tooth cover are established on the integral key shaft, the integral key shaft both ends are rotationally installed in the casing, the gear engagement of basin tooth and horn tooth, afterburning drive tooth drive semi-axis coupling mechanism. The utility model discloses a reduction gear for playground car has cancelled shift fork, synchronous ware and high-speed gear group, fixes the gear at the slow-speed and keeps off, avoids jumping the fender, can reform transform on the basis of current two fender reduction gears moreover, especially shift fork and synchronous ware etc. shift assembly break down the back, directly reforms the reduction gear that is applicable to playground car with the breakdown part cancellation, has saved manufacturing cost greatly.

Description

Speed reducer for playground vehicle

Technical Field

The utility model relates to an agricultural machine equipment technical field, in particular to a reduction gear for playground car.

Background

Playground vehicles refer to electrically operated dollies or small trains used for children to ride and play, and are generally found in park squares, playground squares, beaches and superstores. As the amusement park vehicle is used for children to ride and play, the amusement park vehicle has the characteristics of very low speed and few gears (usually only one gear), is started by trampling a power pedal and changes the speed, has a small range of speed change, and always operates in a slow state.

For a playground vehicle, a speed reducer is an important part except for a motor for providing power, a two-gear speed reducer of an electric motorcycle or an electric tricycle is generally adopted in a traditional playground vehicle, an external gear shifting mechanism is omitted during installation, an internal shifting fork is adjusted, the gear is in a slow gear, and the shifting fork is fixed. The two-gear speed reducer is used on a playground vehicle, is high in cost, and can cause the shifting fork to be loosened due to collision so as to cause a gear jumping fault.

SUMMERY OF THE UTILITY MODEL

The utility model provides a reduction gear for playground car solves traditional reduction gear for playground car and is with higher costs, may jump the problem of keeping off.

The utility model discloses a reduction gear for playground car, include: casing, horn tooth, basin tooth, integral key shaft, afterburning drive tooth and semi-axis coupling mechanism, the hole at casing top is stretched out the casing from the top of the axle of horn tooth, and the gear of horn tooth is located the casing, basin tooth and afterburning drive tooth cover are established on the integral key shaft, the integral key shaft both ends are rotationally installed in the casing, the gear engagement of basin tooth and horn tooth, afterburning drive tooth drive semi-axis coupling mechanism.

Wherein, half shaft connecting mechanism includes: the device comprises a force application driven tooth, an inner spline disc and an adapter body, wherein the adapter body is positioned between the force application driven tooth and the inner spline disc and is respectively connected with the force application driven tooth and the inner spline disc, the force application driven tooth and the inner spline disc are rotatably arranged in a shell, and the force application driven tooth is meshed with the force application driving tooth.

The boosting passive teeth and the internal spline disc are connected with the adapter body through bolts.

Wherein, half shaft connecting mechanism includes: the boosting driven gear and the internal spline disk are rotatably arranged in the shell, and the boosting driven gear is meshed with the boosting driving gear.

The spline shaft is also provided with a bushing for limiting the boosting driving tooth and the basin tooth, and the boosting driving tooth is positioned between the bushing and the basin tooth.

The utility model discloses a reduction gear for playground car has cancelled shift fork, synchronizer and high-speed gear group, fixes the gear at the slow-speed and keeps off, avoids jumping the fender, can reform transform on the basis of current two fender reduction gears moreover, especially shift fork and synchronizer etc. shift assembly break down the back, directly reforms the reduction gear that is applicable to the playground car with the trouble part cancellation, has saved manufacturing cost greatly, need not research and develop dedicated reduction gear for the playground car.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of an external structure of a speed reducer for a playground vehicle according to the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

fig. 5 is a schematic view of the internal structure of the decelerator for a fairground vehicle of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The speed reducer for the amusement park vehicle of the embodiment is shown in figures 1-5 and comprises: casing 1, angle tooth 2, basin tooth 3, integral key shaft 5, afterburning drive tooth 4 and semi-axis coupling mechanism, the hole at 1 top of casing is stretched out casing 1 in the top of the axle of angle tooth 2, the gear of angle tooth 2 is located casing 1, basin tooth 3 and afterburning drive tooth 4 cover are established on integral key shaft 5, integral key shaft 5 both ends are rotationally installed in casing 1, basin tooth 3 and angle tooth 2 gear engagement, afterburning drive tooth 4 drive semi-axis coupling mechanism, two wheels are connected to two semi-axes of semi-axis coupling mechanism. Specifically, the shaft of the angle gear 2 is rotatably sleeved in the housing 1 through a bearing, the part of the shaft extending out of the housing 1 is used for connecting a motor, two ends of the spline shaft 5 are rotatably mounted on the inner wall of the housing 1 through bearings, and the half shaft connecting mechanism is rotatably mounted in the housing and two ends are used for connecting half shafts of a vehicle.

The speed reducer for the playground vehicle has the advantages that a shifting fork, a synchronizer and a high-speed gear set are omitted, gears are fixed at a low-speed gear, the gear skipping is avoided, the speed reducer can be transformed on the basis of the existing two-gear speed reducer, particularly, after gear shifting assemblies such as the shifting fork and the synchronizer break down, the broken-down components are directly omitted and transformed into the speed reducer suitable for the playground vehicle, the production cost is greatly saved, and the speed reducer is not required to be specially used for developing and developing the playground vehicle.

In this embodiment, the half shaft connecting mechanism may adopt one of the following two structures:

the structure I is as follows: the half shaft connecting mechanism comprises a force application driven tooth 6, an internal spline disc 8 and an adapter body 7, wherein the adapter body 7 is positioned between the force application driven tooth 6 and the internal spline disc 8 and is respectively connected with the force application driven tooth 6 and the internal spline disc 7, the force application driven tooth 6 and the internal spline disc 8 are rotatably arranged in the shell 1, and the force application driven tooth 6 is meshed with the force application driving tooth 4. Specifically, the stress application driven tooth 6 and the internal spline disk 8 are respectively installed on the shell 1 through bearings, through holes are formed in corresponding positions of the shell 1, the outer ring of the bearing is fixed to the through holes, the inner ring of the bearing is respectively sleeved on the outer sides of the stress application driven tooth 6 and the internal spline disk 8, and two half shafts of the vehicle are respectively connected with the internal spline of the stress application driven tooth 6 and the internal spline disk 8 through the two through holes. Because the speed of the playground vehicle is very low, the influence on the steering is not great under the condition that a differential mechanism is not needed, therefore, the adapter body 7 of the embodiment is of a hollow structure, compared with an inner rotating body of a traditional two-gear speed reducer, a differential gear set is omitted inside the adapter body, the cost is further reduced, the overall weight is lighter, and the adapter body is more suitable for the playground vehicle.

The force application driven teeth 6 and the internal spline disc 8 are connected with the adapter body 7 through bolts 10, the connecting structure is simple, and low-cost transformation and installation are easy to realize.

The structure II is as follows: the adapter body 7 in the first structure is further eliminated, namely, the half shaft connecting mechanism comprises: the boosting driven gear 6 and the internal spline disk 8 are rotatably arranged in the shell 1, and the boosting driven gear 6 is meshed with the boosting driving gear 4. In structure one, the wheel of the left and right sides can both be transmitted power, and in structure two, the wheel of 6 one sides of only afterburning driven tooth is transmitted power, and opposite side wheel follow-up rotates, more is fit for the condition that requires slightly fast to the speed of a motor vehicle, and under the condition that the speed of a motor vehicle is slightly fast, it is more sensitive to turn to, has cancelled switching body 7 moreover, and the cost is lower, and the quality is lighter.

The boosting driving tooth 4 and the basin tooth 3 are generally tightly sleeved on the spline shaft 5 and are worn along with long-term use of a vehicle or are caused by collision vibration and the like, the boosting driving tooth 4 and the basin tooth 3 are likely to be sleeved on the spline shaft 5 to be loosened, the boosting driving tooth 4 and the basin tooth 3 are transversely shifted, and the power transmission of the boosting driving tooth 4 and the half shaft connecting mechanism is unsmooth after the shifting. Therefore, in the embodiment, the spline shaft 5 is further provided with a bush 9 for limiting the boosting driving tooth 4 and the basin tooth 5, and the boosting driving tooth 4 is positioned between the bush 9 and the basin tooth 3. The bush 9 supports the boosting driving tooth 4 and the basin tooth 5, and the boosting driving tooth 4 and the basin tooth 3 are prevented from being sleeved on the spline shaft 5 to be loosened and transversely displaced.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A retarder for a fairground vehicle, comprising: casing, horn tooth, basin tooth, integral key shaft, afterburning drive tooth and semi-axis coupling mechanism, the hole at casing top is stretched out the casing from the top of the axle of horn tooth, and the gear of horn tooth is located the casing, basin tooth and afterburning drive tooth cover are established on the integral key shaft, the integral key shaft both ends are rotationally installed in the casing, the gear engagement of basin tooth and horn tooth, afterburning drive tooth drive semi-axis coupling mechanism.

2. A retarder for a fairground vehicle as claimed in claim 1, wherein said axle coupling means comprises: the device comprises a force application driven tooth, an inner spline disc and an adapter body, wherein the adapter body is positioned between the force application driven tooth and the inner spline disc and is respectively connected with the force application driven tooth and the inner spline disc, the force application driven tooth and the inner spline disc are rotatably arranged in a shell, and the force application driven tooth is meshed with the force application driving tooth.

3. The retarder for a fairground vehicle according to claim 2, wherein the force-applying driven teeth and the internally splined disc are each bolted to the adapter body.

4. A retarder for a fairground vehicle as claimed in claim 1, wherein said axle coupling means comprises: the boosting driven gear and the internal spline disk are rotatably arranged in the shell, and the boosting driven gear is meshed with the boosting driving gear.

5. The reducer for a fairground vehicle as claimed in any one of claims 1 to 4, wherein the spline shaft is further provided with a bushing for limiting the boosting driving teeth and the basin teeth, and the boosting driving teeth are positioned between the bushing and the basin teeth.