CN220435335U - Gear box - Google Patents
Gear box Download PDFInfo
- Publication number
- CN220435335U CN220435335U CN202420030116.9U CN202420030116U CN220435335U CN 220435335 U CN220435335 U CN 220435335U CN 202420030116 U CN202420030116 U CN 202420030116U CN 220435335 U CN220435335 U CN 220435335U
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- gear
- shaft body
- meshed
- gearbox
- shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 244000309464 bull Species 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The application discloses gearbox, include: the device comprises a shell, a first shaft body, a second shaft body, a third shaft body, a conversion gear and a driving gear. The first shaft body is rotatably sleeved with a first gear and a second gear. The second shaft body is rotatably sleeved with a third gear and a fourth gear, the first gear is meshed with the third gear, and the second gear is meshed with the fourth gear. The third shaft body is rotatably sleeved with a fifth gear and a sixth gear, the fifth gear is meshed with the third gear, the sixth gear is meshed with the fourth gear, the third shaft body is fixedly sleeved with a seventh gear, and the third shaft body is used for being connected with a front transmission shaft assembly. The conversion gear is meshed with the seventh gear and is used for being in transmission connection with the rear transmission shaft assembly. The rotation directions of the conversion gear of the gearbox and the third shaft body are opposite, so that the front transmission shaft assembly and the rear transmission shaft assembly can output reverse power, and the toy car body of the gearbox is evenly distributed and has good running stability.
Description
Technical Field
The utility model relates to the technical field of toys, in particular to a gearbox.
Background
Toy vehicles typically include a frame, a front axle, a rear axle, a motor, and a gearbox. The front axle and the rear axle are arranged on two sides of the frame along the length direction. Most of the driving structures of existing toy vehicles are front driving or rear driving, namely, wheel driving rod assemblies are arranged in front axles or rear axles only. The gearbox is arranged at the middle position of the frame along the length direction, and the input end gear of the gearbox is connected with a driving gear in a transmission way, and the driving gear is connected with a rotating shaft of the motor. The output gear of gearbox is connected with drive shaft assembly, and drive shaft assembly is connected with the wheel actuating lever subassembly transmission in front axle or the rear axle, and the pivot rotation through the motor drives the drive gear rotation, and the drive gear drives the input gear rotation of gearbox, and then drives the rotation of each drive gear of gearbox, finally by the rotatory drive shaft assembly rotation of output gear of gearbox, and then drive wheel actuating lever subassembly work in order to drive the toy car and go.
However, a front-only or rear-only drive configuration may make the toy vehicle very unstable during travel. In the prior art, there are four-wheel drive toy vehicles, namely, a front wheel driving rod assembly is arranged in a front axle, a rear wheel driving rod assembly is arranged in a rear axle, two transmission shaft assemblies are arranged, one ends of the two transmission shaft assemblies are respectively connected with an output end gear of a gearbox, and the other ends of the two transmission shaft assemblies are respectively connected with the front wheel driving rod assembly and the rear wheel driving rod assembly. The motor works to drive gears in the gearbox to rotate and finally drive two transmission shaft assemblies to rotate in the same direction. However, the structure can lead the front and rear transmission shaft assemblies of the toy car to output power in the same direction, so that the balance distribution of the car body is uneven and the running stability is poor.
In view of this, the present utility model has been made.
Disclosure of Invention
The utility model provides a gearbox.
The utility model adopts the following technical scheme:
a gearbox, comprising:
a housing;
the first shaft body is arranged on the shell, and a first gear and a second gear are rotatably sleeved on the first shaft body;
the second shaft body is arranged on the shell, is parallel to the first shaft body, is rotatably sleeved with a third gear and a fourth gear, is meshed with the third gear, and is meshed with the fourth gear;
the third shaft body is rotatably arranged on the shell, the third shaft body is parallel to the second shaft body, a fifth gear and a sixth gear are rotatably sleeved on the third shaft body, the fifth gear is meshed with the third gear, the sixth gear is meshed with the fourth gear, a seventh gear is fixedly sleeved on the third shaft body, a combining sleeve is slidably sleeved on the third shaft body, the combining sleeve synchronously rotates with the third shaft body, the combining sleeve is positioned between the fifth gear and the sixth gear and is used for being selectively combined with the fifth gear or the sixth gear, and the third shaft body is used for being connected with a front transmission shaft assembly;
the conversion gear is rotatably arranged on the shell and meshed with the seventh gear, and the conversion gear is used for being in transmission connection with the rear transmission shaft assembly;
the driving gear is arranged on the shell and used for being connected with the motor, and the driving gear is meshed with the first gear.
Optionally, the first shaft body, the second shaft body and the third shaft body are sequentially arranged along the direction vertical to the horizontal plane.
Optionally, the projection of the driving gear to the horizontal plane is located at a middle position of a projection area formed by the projection of the first gear, the second gear, the third gear, the fourth gear, the fifth gear, the sixth gear, the seventh gear and the conversion gear to the horizontal plane.
Optionally, the first shaft body, the second shaft body and the third shaft body are sequentially arranged in an inclined manner towards the first direction;
the conversion gear is positioned at one side of the third shaft body in the second direction;
wherein the first direction and the second direction are opposite.
Optionally, the first gear, the second gear, the third gear and the fourth gear are all composite gears;
the pinion of the first gear is meshed with the bull gear of the third gear;
the pinion of the second gear is meshed with the bull gear of the fourth gear;
the large gear of the third gear is meshed with the fifth gear;
and the large gear of the fourth gear is meshed with the sixth gear.
Optionally, the first gear, the second gear, the third gear and the fourth gear are gears with identical structures and dimensions.
Optionally, the fifth gear, the sixth gear, the seventh gear and the conversion gear are gears with identical structures and dimensions.
Optionally, the gearbox comprises a shifting fork driving rod;
the shifting fork driving rod penetrates through the shell;
the shifting fork driving rod is connected with a shifting fork, and the shifting fork is sleeved on the combining sleeve;
the shift fork driving rod penetrates through a space formed between the fourth gear, the seventh gear and the conversion gear.
Optionally, a motor mounting seat is arranged on the shell;
the motor is fixed in the motor mount pad, the pivot of motor connect in drive gear.
Optionally, a fixing frame is arranged on the shell;
the fixing frame is used for being fixed on the frame.
By adopting the technical scheme, the utility model has the following beneficial effects:
the rotation directions of the conversion gear of the gearbox and the third shaft body are opposite, so that the front transmission shaft assembly and the rear transmission shaft assembly can output reverse power, and the toy car body of the gearbox is evenly distributed and has good running stability.
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model, without limitation to the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
fig. 1 is a schematic structural diagram of a connection between a gearbox, a motor and a steering engine according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a gearbox removing shell, a motor and a steering engine in cooperation with each other according to an embodiment of the present application;
FIG. 3 is a side view of a transmission removal housing provided in an embodiment of the present application;
FIG. 4 is a schematic view of a coupling sleeve of a transmission provided in an embodiment of the present application;
fig. 5 is a schematic structural view of a fifth gear of the transmission provided in the embodiment of the present application.
In the figure, a housing 1, a motor mount 11, a mount 12, a fixed arm 121, a first shaft 2, a first gear 21, a second gear 22, a second shaft 3, a third gear 31, a fourth gear 32, a third shaft 4, a fifth gear 41, a sixth gear 42, a seventh gear 43, a coupling sleeve 44, a coupling tooth 441, a coupling groove a, a conversion gear 5, a driving gear 6, a motor 7, a fastener 8, a steering engine 9, a rotator 91, a connecting rod 92, a fork driving lever 93, and a fork 94.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, 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; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 5, an embodiment of the present application provides a transmission, including: a housing 1, a first shaft body 2, a second shaft body 3, a third shaft body 4, a conversion gear 5 and a drive gear 6. The first shaft body 2 is arranged on the shell 1, and a first gear 21 and a second gear 22 are rotatably sleeved on the first shaft body 2. The second shaft body 3 is disposed in the housing 1, the second shaft body 3 is parallel to the first shaft body 2, the second shaft body 3 is rotatably sleeved with a third gear 31 and a fourth gear 32, the first gear 21 is meshed with the third gear 31, and the second gear 22 is meshed with the fourth gear 32. The third shaft body 4 is rotatably arranged on the shell 1, the third shaft body 4 is parallel to the second shaft body 3, a fifth gear 41 and a sixth gear 42 are rotatably sleeved on the third shaft body 4, the fifth gear 41 is meshed with the third gear 31, the sixth gear 42 is meshed with the fourth gear 32, a seventh gear 43 is fixedly sleeved on the third shaft body 4, a combining sleeve 44 is slidably sleeved on the third shaft body 4, the combining sleeve 44 rotates synchronously with the third shaft body 4, the combining sleeve 44 is positioned between the fifth gear 41 and the sixth gear 42 and is used for being selectively combined with the fifth gear 41 or the sixth gear 42, and the third shaft body 4 is used for connecting a front transmission shaft assembly. The conversion gear 5 is rotatably arranged on the housing 1, the conversion gear 5 is meshed with the seventh gear 43, and the conversion gear 5 is used for being in transmission connection with a rear transmission shaft assembly. The driving gear 6 is disposed on the housing 1 and is used for connecting with the motor 7, and the driving gear 6 is meshed with the first gear 21. The rotation directions of the conversion gear 5 and the third shaft body 4 of the gearbox are opposite, so that the front transmission shaft assembly and the rear transmission shaft assembly can output reverse power, and the toy car body of the gearbox is evenly distributed and has good running stability.
As shown in fig. 2 and 3, the first shaft body 2, the second shaft body 3 and the third shaft body 4 are sequentially disposed in a direction perpendicular to a horizontal plane. The first shaft body 2, the second shaft body 3 and the third shaft body 4 extend downwards along the vertical horizontal plane, do not occupy the space of the frame along the width direction, and are convenient to install on the frame.
The projection of the driving gear 6 onto the horizontal plane is located at the middle position of the projection area formed by the projection of the first gear 21, the second gear 22, the third gear 31, the fourth gear 32, the fifth gear 41, the sixth gear 42, the seventh gear 43 and the conversion gear 5 onto the horizontal plane. The driving gear 6 is disposed at a middle position of the first gear 21, the second gear 22, the third gear 31, the fourth gear 32, the fifth gear 41, the sixth gear 42, the seventh gear 43, and the conversion gear 5. The structure of the gearbox is bilaterally symmetrical, and the reverse power output is more stable.
The first shaft body 2, the second shaft body 3 and the third shaft body 4 are sequentially arranged in an inclined manner in a first direction. The conversion gear 5 is located at the second direction side of the third shaft body 4. Wherein the first direction and the second direction are opposite. The first direction can be the right side, the second direction is the left side promptly, and drive gear 6 median layout is put, makes each structure of the gearbox of this application gradually put down until the reverse power take off in symmetry both ends, makes the gearbox bilateral symmetry of this application, and the equilibrium is better, and reverse power take off is more stable.
In one possible embodiment, as shown in fig. 2, the first gear 21, the second gear 22, the third gear 31 and the fourth gear 32 are all composite gears, the pinion of the first gear 21 is meshed with the large gear of the third gear 31, the pinion of the second gear 22 is meshed with the large gear of the fourth gear 32, the large gear of the third gear 31 is meshed with the fifth gear 41, and the large gear of the fourth gear 32 is meshed with the sixth gear 42. So that the rotational speeds of the third gear 31 and the fourth gear 32 are different.
The first gear 21, the second gear 22, the third gear 31 and the fourth gear 32 are gears with identical structures and dimensions. The first gear 21, the second gear 22, the third gear 31 and the fourth gear 32 only need to manufacture composite gears with the same structure, so that the mold opening types of all parts during production are reduced, and the production is simpler.
The fifth gear 41, the sixth gear 42, the seventh gear 43 and the conversion gear 5 are gears having the same structure and size. The fifth gear 41, the sixth gear 42, the seventh gear 43 and the conversion gear 5 are single gears with the same structure, and the fifth gear 41, the sixth gear 42, the seventh gear 43 and the conversion gear 5 only need to manufacture gears with the same structure, so that the mold opening types of all parts during production are reduced, and the production is simpler. The gear of the gearbox of the application only needs to produce the gear of three kinds of structures, namely a first driving gear 6, a first gear 21, a second gear 22, a third gear 31 and a fourth gear 32, a fifth gear 41, a sixth gear 42, a seventh gear 43 and a conversion gear 5, and the three kinds of gears enable each gear of the gearbox of the application to be simple in production and simple in assembly structure.
As shown in fig. 2, the gearbox includes a shift fork driving rod 93, the shift fork driving rod 93 penetrates through the housing 1, a shift fork 94 is connected to the shift fork driving rod 93, the shift fork 94 is sleeved on the coupling sleeve 44, and the shift fork driving rod 93 penetrates through a space formed between the fourth gear 32, the seventh gear 43 and the conversion gear 5. The fork driving lever 93 makes full use of the space formed between the fourth gear 32, the seventh gear 43 and the conversion gear 5, and occupies no other space.
As shown in fig. 2, the steering engine 9 is connected to the housing 1 through a fastener 8, and the steering engine 9 includes a rotating member 91 and a connecting rod 92. The rotating member 91 is connected to the output end of the steering engine 9, an eccentric hole is formed in the rotating member 91, one end of the connecting rod 92 is connected to the eccentric hole, and the other end of the connecting rod 92 is connected to the shift fork driving rod 93. The fork 94 and the coupling sleeve 44 are slidably engaged to drive the coupling sleeve 44 to slide along the third shaft body 4. In the process that the steering engine 9 drives the rotating member 91 to rotate, the connecting rod 92 can reciprocate along the length direction of the third shaft body 4 with the shifting fork 94, so that the shifting fork 94 drives the combining sleeve 44 to be combined with the fifth gear 41 and the sixth gear 42 respectively, and the speed of the toy car is regulated. The fastening piece 8 can be a screw, and the steering engine 9 is fixed on the shell 1 of the gearbox through the screw, so that the steering engine 9 for adjusting the gear is integrated with the gearbox, and the transmission among gears is reduced without losing performance.
As shown in fig. 4 and 5, the fifth gear 41 and the sixth gear 42 are each provided with a plurality of coupling grooves a. The combining sleeve 44 is provided with combining convex teeth 441 at both sides thereof, respectively. The engaging teeth 441 on one side of the engaging sleeve 44 can be engaged with the engaging grooves a of the fifth gear 41 when the engaging sleeve 44 is moved in the first direction, and the engaging teeth 441 on the other side of the engaging sleeve 44 can be engaged with the engaging grooves a of the sixth gear 42 when the engaging sleeve 44 is moved in the second direction. The rotation speeds of the third gear 31 and the fourth gear 32 are different, and the third shaft body 4 is switched to different rotation speeds by combining the movement of the combining sleeve 44 with the combination of the fifth gear 41 and the sixth gear 42, so that the speed change gear of the gearbox of the present application is realized.
As shown in fig. 5, the coupling groove a includes four arc-shaped grooves extending around the circumferential direction of the fifth gear 41 and the sixth gear 42. The third shaft body 4 is sleeved with a polygonal part of the combining sleeve 44, the combining sleeve 44 is slidably sleeved at the polygonal part, the combining convex teeth 441 on two sides of the combining sleeve 44 are also four arc convex teeth, and the outer surfaces of the arc convex teeth are identical to the inner surface structure of the arc groove. After the arc convex tooth stretches into the arc groove, the outer surface of the arc convex tooth is attached to the inner surface of the arc groove, when the arc groove is combined with the arc convex tooth, the arc structure can adjust the alignment position by itself, the alignment difficulty of the combining convex tooth 441 and the combining groove a is reduced, and the combining convex tooth 441 and the combining groove a are convenient to connect accurately.
In one possible embodiment, as shown in fig. 1 and 2, a motor 7 mounting seat 11 is provided on the housing 1, the motor 7 is fixed on the motor 7 mounting seat 11, and a rotating shaft of the motor 7 is connected to the driving gear 6. The motor 7 and the gearbox are integrated into a whole, so that the transmission among gears is reduced without losing performance.
As shown in fig. 1, a fixing frame 12 is disposed on the housing 1, and the fixing frame 12 is used for being fixed on a vehicle frame. The fixing frame 12 is provided with two fixing arms 121, and the two fixing arms 121 are respectively connected to the frame through fasteners, so that the stability of the connection of the gearbox is ensured.
The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present utility model without departing from the scope of the utility model.
Claims (10)
1. A gearbox, comprising:
a housing;
the first shaft body is arranged on the shell, and a first gear and a second gear are rotatably sleeved on the first shaft body;
the second shaft body is arranged on the shell, is parallel to the first shaft body, is rotatably sleeved with a third gear and a fourth gear, is meshed with the third gear, and is meshed with the fourth gear;
the third shaft body is rotatably arranged on the shell, the third shaft body is parallel to the second shaft body, a fifth gear and a sixth gear are rotatably sleeved on the third shaft body, the fifth gear is meshed with the third gear, the sixth gear is meshed with the fourth gear, a seventh gear is fixedly sleeved on the third shaft body, a combining sleeve is slidably sleeved on the third shaft body, the combining sleeve synchronously rotates with the third shaft body, the combining sleeve is positioned between the fifth gear and the sixth gear and is used for being selectively combined with the fifth gear or the sixth gear, and the third shaft body is used for being connected with a front transmission shaft assembly;
the conversion gear is rotatably arranged on the shell and meshed with the seventh gear, and the conversion gear is used for being in transmission connection with the rear transmission shaft assembly;
the driving gear is arranged on the shell and used for being connected with the motor, and the driving gear is meshed with the first gear.
2. The transmission of claim 1, wherein the first shaft, the second shaft, and the third shaft are disposed in sequence in a direction perpendicular to a horizontal plane.
3. The transmission of claim 2, wherein the projection of the drive gear to the horizontal plane is located in a middle position of a projection area formed by the projections of the first gear, the second gear, the third gear, the fourth gear, the fifth gear, the sixth gear, the seventh gear, and the conversion gear to the horizontal plane.
4. A gearbox according to claim 3, wherein the first, second and third shafts are arranged in order inclined to the first direction;
the conversion gear is positioned at one side of the third shaft body in the second direction;
wherein the first direction and the second direction are opposite.
5. The gearbox of claim 1, wherein the first gear, the second gear, the third gear, and the fourth gear are all compound gears;
the pinion of the first gear is meshed with the bull gear of the third gear;
the pinion of the second gear is meshed with the bull gear of the fourth gear;
the large gear of the third gear is meshed with the fifth gear;
and the large gear of the fourth gear is meshed with the sixth gear.
6. The gearbox of claim 1, wherein the first gear, the second gear, the third gear, and the fourth gear are gears of identical construction and size.
7. The gearbox of claim 1, wherein the fifth gear, sixth gear, seventh gear, and transfer gear are gears of identical construction and size.
8. The gearbox of claim 1, comprising a fork drive lever;
the shifting fork driving rod penetrates through the shell;
the shifting fork driving rod is connected with a shifting fork, and the shifting fork is sleeved on the combining sleeve;
the shift fork driving rod penetrates through a space formed between the fourth gear, the seventh gear and the conversion gear.
9. The gearbox of claim 1, wherein a motor mount is provided on the housing;
the motor is fixed in the motor mount pad, the pivot of motor connect in drive gear.
10. The gearbox of claim 1, wherein a mount is provided on the housing;
the fixing frame is used for being fixed on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420030116.9U CN220435335U (en) | 2024-01-05 | 2024-01-05 | Gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420030116.9U CN220435335U (en) | 2024-01-05 | 2024-01-05 | Gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220435335U true CN220435335U (en) | 2024-02-02 |
Family
ID=89694121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420030116.9U Active CN220435335U (en) | 2024-01-05 | 2024-01-05 | Gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220435335U (en) |
-
2024
- 2024-01-05 CN CN202420030116.9U patent/CN220435335U/en active Active
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