CN212004149U

CN212004149U - Be applied to differential structure of perambulator

Info

Publication number: CN212004149U
Application number: CN201921648063.2U
Authority: CN
Inventors: 刘结根
Original assignee: Suzhou Liujin Industrial Design Co ltd
Current assignee: Jiaxing Newstar Motor Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-11-24
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a be applied to differential structure of perambulator, including driving gear and the planet tooth structure of setting in its inside, the output shaft that the left and right sides symmetry set up passes driving gear rather than the planet tooth structural connection of inside and forms differential transmission structure, planet tooth structure includes cross axle and sets up the planet pinion at its four tip, it is inboard that the planet pinion passes through the drive iron sheet and sets up the driving gear, the gear wheel that the planet tooth structure left and right sides all was equipped with and wear to establish the output shaft in the driving gear, and be equipped with the little bearing on output shaft and the connection of driving gear, the output shaft is the sectional type structure, its outer tip is equipped with the interlock groove. Novel structure, it is small, adopt the axle construction of sectional type on the connection of output shaft, can be suitable for the child's bike of different wheel bases for packing small, application scope is wide.

Description

Be applied to differential structure of perambulator

Technical Field

The utility model relates to a child's bike field, in particular to be applied to differential structure of child's bike.

Background

The transmission of traditional child's bike passes through the motor to be connected with the driving piece, or the motor cooperation conveyer belt carries out the transmission, nevertheless for reaching great moment of torsion, often need adopt great driving motor.

Or adopt gear drive, often the gear box is bulky, comparatively takes up an area of, and pleasing to the eye and practical lack to some extent, moreover, traditional gear adopts high-power motor, and the consumption is big, and is with high costs.

Furthermore, traditional gear box all has the setting in the both sides of wheel, and this kind of setting mode perambulator does not possess the differential function, and the turn is that easy card dies, holistic poor stability, the security is poor.

Meanwhile, the traditional electric baby carriage is connected with the shaft, is of an integrated shaft structure, the length of the shaft is fixed, and the integrated shaft structure is difficult to apply to baby carriages with different wheelbases, and has the defect of large packaging volume in the packaging process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned problem, provide a be applied to differential structure of perambulator, novel structure, it is small, adopt the axial construction of sectional type on the connection of output shaft, can make the packing small, can be suitable for the perambulator of different wheel bases, application scope is wide, simultaneously, this structure is more inseparable on the connection of each part, and transmission efficiency is high, need not high-power motor and drives, reduction in production cost.

And, only need a gear box to connect the driving gear on the whole setting, can set up it between two parties, the molding is littleer, more for pleasing to the eye, and manufacturing cost reduces, and the output adopts the differential setting of planet tooth structure to connect the output shaft to in making the use of motor, need not high-power motor, reduction in production cost, more, the perambulator is turning the in-process, can realize controlling the different speeds of wheel, guarantees the stability of perambulator, improves the security.

Meanwhile, due to the arrangement of the differential structure, the wheels cannot be locked, and a circuit board is protected to a certain extent.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a be applied to differential structure of perambulator, including driving gear and the planet tooth structure of setting in its inside, the output shaft that the left and right sides symmetry set up passes driving gear and forms differential transmission structure rather than the planet tooth structural connection of inside, planet tooth structure includes the cross axle and sets up the planet pinion at its four tip, it is inboard that the planet pinion passes through the transmission iron sheet and sets up the driving gear, the gear wheel that the planet tooth structure left and right sides all was equipped with and wear to establish the output shaft in the driving gear, and be equipped with the small bearing on output shaft and the connection of driving gear, the output shaft is the sectional type structure, its outer tip of connecting is equipped with the interlock groove.

Furthermore, the output shaft comprises an external connection end, a connection end and a fixed end, the diameter of the external connection end is gradually reduced, the fixed end is provided with a positioning pin hole, the large gear is connected with the positioning pin hole through a pin transmission shaft, the connection end is arranged in the small bearing, and the engagement groove is arranged on the external connection end.

Furthermore, a fixing groove is formed in the large gear and used for fixing the pin transmission shaft.

Further, the driving gear includes that the outside has the driving gear body and the fixed lid of driving gear of gear, and both lock through the fixed iron sheet cooperation bolt that bilateral symmetry set up.

Furthermore, the driving gear body is provided with a positioning groove for arranging a driving iron sheet.

Furthermore, two ends of the outer side of the transmission gear are symmetrically connected with large bearings.

Furthermore, a bush is further arranged on the outer side connection of the output shaft and the transmission gear.

Further, first gaskets are arranged on two sides of the lining.

Furthermore, a second gasket is arranged between the big gear and the small bearing.

To sum up, the utility model discloses possess following advantage:

1. the utility model discloses novel structure, it is small, the low power dissipation, the axle construction of sectional type can make the packing small, can be suitable for the child's bike of different wheel bases, and application scope is wide.

2. The utility model discloses only need a gear box to connect the driving gear on the whole setting, can set up it between two parties, the molding is littleer, more pleasing to the eye, and manufacturing cost reduces, and the output adopts the differential setting of planet tooth structure to connect the output shaft, thereby in the use of motor, need not high-power motor, reduction in production cost, more, the perambulator is in the course of turning, can realize that the wheel is different fast about, guarantees the stability of perambulator, improves the security;

3. the utility model adopts a symmetrical or corresponding way to drive the transmission gear, so as to achieve the balance of force;

4. the utility model discloses a driving gear adopts big bearing in the grafting, reduces the friction between its and the gear box to reduce the output of motor, more power saving on the whole.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic view of the inside of the transmission gear body of the present invention;

FIG. 4 is an exploded view of the planetary tooth configuration and the transmission tooth arrangement;

fig. 5 is a schematic view of the output shaft structure.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example 1:

a differential structure applied to a child vehicle, referring to attached figures 1-5, comprises a transmission gear 1 and a planetary gear structure arranged in the transmission gear 1, wherein output shafts 2 symmetrically arranged on the left side and the right side penetrate through the transmission gear 1 to be connected with the planetary gear structure in the transmission gear 1 to form the differential transmission structure, the planetary gear structure comprises a cross shaft 3 and planetary pinions 4 arranged at four end parts of the cross shaft, and the planetary pinions 4 are arranged on the inner side of the transmission gear 1 through a transmission iron sheet 41.

Specifically, referring to fig. 3 and 4, the driving gear 1 includes a driving gear body 12 and a driving gear fixing cover 13, the outside of which has a gear 11, the two are locked by a fixing iron sheet 14 and a bolt 15, the driving gear body 12 is provided with a positioning slot 21 for setting a driving iron sheet 41, so that in a closed state of the driving gear, the planetary gear structure is arranged in the driving gear body to form a differential design.

Meanwhile, two ends of the outer side of the transmission gear 1 are symmetrically connected with large bearings 8, and friction between the transmission gear and the gear box is reduced.

And on the connection of planetary gear structure and output shaft, the bull gear 5 that the planet tooth structure left and right sides all was equipped with is connected with the output shaft 2 of wearing to establish in driving tooth 1, and the output shaft with the connection of driving tooth 1 is equipped with little bearing 6, and this little bearing can reduce the friction between output shaft and the driving tooth, and the setting of cooperation differential design and the big bearing in the driving tooth outside to whole gear box can need not to adopt high-power motor in the output selection of motor power.

Specifically, in the connection of the output shaft, referring to fig. 5, the output shaft 2 includes an outer end 22 with a gradually decreasing diameter, a connecting end 23 and a fixed end 24.

Be equipped with registration pin hole 241 on stiff end 24, gear wheel 5 is connected with the registration pin hole through pin transmission shaft 7, and what correspond is equipped with fixed slot 51 on gear wheel 5 and is used for fixing pin transmission shaft 7.

The connecting end 23 is arranged in the small bearing 6, and a second gasket 10 is arranged between the large gear 5 and the small bearing 6.

The interlock groove 21 sets up on outer holding end 22, and interlock groove 21 is used for being connected with the transmission shaft of perambulator, adopts this sectional type output shaft, and the perambulator connecting axle of different length can be suitable for different wheel bases, the perambulator of different dimensions, and the practicality is excellent to, the axial construction of sectional type, the volume is littleer, makes things convenient for holistic packing transportation, and electricity round pin in-process cost of transportation is low.

It has to be mentioned that the design of the engagement groove is only a specific structure in the sectional type shaft transmission scheme, and the common means such as the pin structure, the thread combination, the shaft sleeve matching form and the like should be included in the protection scope of the present invention.

Of course, the structure is not limited to be applied to the electric children's vehicle, and can also be applied to the same structural domain of the old people vehicle and the like.

It is noted that the output shaft 2 is connected with the outer side of the transmission gear 1 and is further provided with a bushing 9, and two sides of the bushing 9 are provided with first gaskets 91.

The working principle of the baby carriage is combined for further explanation, the gear box drives the transmission gear to rotate, the output shaft rotates, under the action of the planetary gear structure, the output shafts at the left end and the right end can rotate in a differential speed mode, concretely, the differential speed is combined for further explanation, the trajectory of the wheels is an arc when the baby carriage turns to the left, if the baby carriage turns to the left, the central point of the arc is on the left side, in the same time, the arc line of the right side wheel is longer than that of the left side wheel, in order to balance the difference, the left side wheel is required to be slower, and the right side wheel is faster, so that the differential speed is adopted to make up the difference of the distance by using different rotating speeds, the.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.

It will be understood that the above-described embodiments are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions may be made in the details described herein by those skilled in the art without departing from the basic principles of the invention.

Claims

1. The utility model provides a be applied to differential structure of child's bike which characterized in that: including driving gear (1) and the planet tooth structure of setting in its inside, output shaft (2) that the bilateral symmetry set up about pass driving gear (1) is connected rather than inside planet tooth structure and forms differential transmission structure, planet tooth structure includes cross axle (3) and sets up planet pinion (4) at its four tip, planet pinion (4) set up driving gear (1) inboard through drive iron sheet (41), gear wheel (5) that the planet tooth structure left and right sides all was equipped with wear to establish output shaft (2) in driving gear (1) are connected, just the output shaft with be equipped with little bearing (6) on the connection of driving gear (1), output shaft (2) are the sectional type structure.

2. A differential construction for a child's vehicle according to claim 1 wherein: the output shaft (2) comprises an outer connecting end (22) with the diameter gradually reduced, a connecting end (23) and a fixing end (24), a positioning pin hole (241) is formed in the fixing end (24), the large gear (5) is connected with the positioning pin hole through a pin transmission shaft (7), the connecting end (23) is arranged in the small bearing (6), and the meshing groove (21) is formed in the outer connecting end (22).

3. A differential construction for a child's vehicle according to claim 2 characterised in that: and the large gear (5) is provided with a fixing groove (51) for fixing the pin transmission shaft (7).

4. A differential construction for a child's vehicle according to claim 1 wherein: the transmission gear (1) comprises a transmission gear body (12) with a gear (11) on the outer side and a transmission gear fixing cover (13), and the transmission gear body and the transmission gear fixing cover are locked through fixing iron sheets (14) which are symmetrically arranged on two sides and matched with bolts (15).

5. A differential construction for a child's vehicle according to claim 4 wherein: the transmission gear body (12) is provided with a positioning groove (121) for arranging the transmission iron sheet (41).

6. A differential construction for a child's vehicle according to claim 4 wherein: two ends of the outer side of the transmission gear (1) are symmetrically connected with large bearings (8).

7. A differential construction for a child's vehicle according to claim 1 wherein: and a bush (9) is further arranged on the outer side connection of the output shaft (2) and the transmission gear (1).

8. A differential construction for a child's vehicle according to claim 7 wherein: and first gaskets (91) are arranged on two sides of the bushing (9).

9. A differential construction for a child's vehicle according to claim 1 wherein: and a second gasket (10) is arranged between the big gear (5) and the small bearing (6).