CN220320241U - Zero differential speed type double-flow transmission device - Google Patents
Zero differential speed type double-flow transmission device Download PDFInfo
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- CN220320241U CN220320241U CN202321836329.2U CN202321836329U CN220320241U CN 220320241 U CN220320241 U CN 220320241U CN 202321836329 U CN202321836329 U CN 202321836329U CN 220320241 U CN220320241 U CN 220320241U
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- planet carrier
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000003137 locomotive effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
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Abstract
The utility model provides a homodyne double-flow transmission device, which adopts a large spur gear as a planet carrier wheel, two sun gears with opposite directions are arranged on the axis of the planet carrier wheel, and the sun gears are meshed with the corresponding sun gears through planet gears. The power is directly transmitted to the first sun gear through a straight-running input bevel gear in the power input assembly, so that the locomotive can run straight; the power is transmitted to the planet carrier wheel through the steering input bevel gear, the planet carrier wheel drives the planet wheel, and the planet wheel drives the sun wheel to rotate, so that the steering of the locomotive is realized. In addition, the modes of direct running input and steering input can be controlled, and the double-wheel differential and single-side locking operation of the locomotive can be realized.
Description
Technical Field
The utility model belongs to the technical field of transmission systems, and particularly relates to a zero differential speed type double-flow transmission device.
Background
If the crawler is provided with a double-flow transmission device, each gear can have a specified steering radius, the steering performance of the crawler is improved, and the zero differential speed double-flow transmission is a transmission form commonly used for the crawler. In addition, conventionally, since there is no hydraulic steering system, its steering radius is a prescribed value. The existing structure is required to be provided with strong reliability, universality, maneuverability and controllability due to the requirement of military equipment, and is integrally installed, so that the environment of members in a vehicle is ensured, and the structure is complex.
Disclosure of Invention
The object of the present utility model is to solve the above problems and to provide a zero differential speed type double flow transmission device which is compact in its whole structure by a compact design and whose turning radius tends to be unlimited by structural improvement.
In order to achieve the above purpose, the technical scheme adopted by the utility model is to provide a zero differential speed type double-flow transmission device, which comprises two differential assemblies arranged oppositely and a power input assembly arranged between the two differential assemblies;
the power input assembly comprises a straight-line input bevel gear, a steering input bevel gear, a first driven bevel gear and two second driven bevel gears, wherein the straight-line input bevel gear is meshed with the first driven bevel gear, and the steering input bevel gear is meshed with the two second driven bevel gears; the two second driven bevel gears are respectively connected with a transmission straight gear;
the differential assembly comprises a planet carrier, a planet carrier wheel, a first sun wheel, a second sun wheel, a first planet wheel and a second planet wheel; the planet carrier is fixedly arranged on the disc surface of the planet carrier wheel, a first sun wheel and a second sun wheel are arranged on the axis of the planet carrier wheel, the first sun wheel is connected with the first driven bevel gear through a wheel shaft penetrating through the circle center of the planet carrier wheel, the second sun wheel is arranged on the top of the planet carrier, and the second sun wheel is connected with the output shaft; the first planet gears are arranged on the disc surface of the planet carrier wheel and meshed with the first sun gear; the second planet wheel is arranged on the disc surface of the planet carrier wheel and meshed with the second sun wheel; the first planet wheel is meshed with the second planet wheel;
the two driving spur gears are respectively meshed with one planet carrier, and the first driven bevel gear is also connected with a first sun gear of the other differential assembly through a wheel shaft.
In one possible embodiment, the planet carrier wheel, the first sun wheel, the second sun wheel, the first planet wheel and the second planet wheel are all spur gears.
In one possible embodiment, the straight pinion shaft and the steering pinion shaft are each connected to a drive motor. In one possible embodiment, the homodyne double flow transmission is arranged in a housing, from which the two output shafts and the straight and steering gear shafts are led out respectively.
In one possible embodiment, a spacer is provided between the first sun gear and the second sun gear.
In one possible embodiment, the number of the first planetary gears and the second planetary gears is at least two.
According to the zero differential speed type double-flow transmission device, a large spur gear is adopted as a planet carrier wheel, two sun wheels with opposite directions are arranged on the axis of the planet carrier wheel, and the sun wheels are meshed with the corresponding sun wheels through planet wheels. The power is directly transmitted to the first sun gear through a straight-running input bevel gear in the power input assembly, so that the locomotive can run straight; the power is transmitted to the planet carrier wheel through the steering input bevel gear, the planet carrier wheel drives the planet wheel, and the planet wheel drives the sun wheel to rotate, so that the steering of the locomotive is realized. In addition, the modes of direct running input and steering input can be controlled, and the double-wheel differential and single-side locking operation of the locomotive can be realized.
The differential assembly provided by the utility model adopts a mode that a plurality of straight-tooth type planetary gears are matched with two straight-tooth type sun gears and the planet carrier wheels are matched with the transmission gears, so that the whole structure is more compact.
The utility model can realize unlimited adjustment of steering radius through the speed regulation of the steering motor and the action of the matched differential assembly.
Drawings
Fig. 1 is a schematic perspective view of a casing with a part removed according to the present utility model.
Fig. 2 is a front view of the utility model with all of the housing removed.
Fig. 3 is a perspective view of the utility model with all of the housing removed.
Fig. 4 is a perspective view of the belt housing of the present utility model.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
As shown in fig. 1 to 4, the present embodiment provides a zero differential speed type double flow transmission device including differential assemblies 1 arranged opposite to each other, a power input assembly 2 arranged between the two differential assemblies 1, and a housing 3, the differential assemblies 1 and the power input assembly 2 being arranged in the housing 3.
Referring to fig. 2, wherein the power input assembly includes a straight-going input bevel gear 26, a steering input bevel gear 27, a first driven bevel gear 25, and a second driven bevel gear 23, wherein the straight-going input bevel gear 26 is provided with a straight-going gear shaft 22, and the steering input bevel gear 27 is provided with a steering gear shaft 21. The straight input bevel gear 26 is meshed with the first driven bevel gear 25, and the steering input bevel gear 27 is meshed with the two second driven bevel gears 23; two second driven bevel gears 23 are connected to a drive spur gear 24, respectively.
Referring to fig. 3, wherein differential assembly 1 comprises a planet carrier 11, a planet carrier wheel 18, a first sun wheel 16, a second sun wheel 14, a first planet wheel 12 and a second planet wheel 13; the planet carrier 11 is fixedly arranged on the disc surface of the planet carrier wheel 18, a first sun wheel 16 and a second sun wheel 14 are arranged on the axis of the planet carrier wheel 18, the first sun wheel 16 is connected with a first driven bevel gear 25 through a wheel shaft penetrating through the circle center of the planet carrier wheel 18, the second sun wheel 14 is arranged in the top of the planet carrier 11, and the second sun wheel 14 is connected with the output shaft 17; the first planet gears 12 are mounted on the disc face of the carrier wheel 18 and mesh with the first sun gear 16; the second planet gears 14 are mounted on the disc face of the planet carrier gear 18 and are in mesh with the second sun gear 14; the first planet wheel 12 and the second planet wheel 13 mesh.
The two spur gears 24 are each engaged with one of the planetary carriers 18, and the first driven bevel gear 25 is also connected to the first sun gear 16 of the other differential assembly 1 via the wheel shaft.
In one possible embodiment, the planet carrier 18, the first sun 16, the second sun 14, the first planet 12 and the second planet 13 are all spur gears.
In one possible implementation, the straight-running gear shaft 22 and the steering gear shaft 21 are connected to drive motors, respectively, and the drive motor connected to the straight-running gear shaft 22 is a straight-running motor and the drive motor connected to the steering gear shaft 21 is a steering motor.
Referring to fig. 4, the zero differential double flow transmission is provided in the housing 3, from which two output shafts 17 and a straight running gear shaft 22 and a steering gear shaft 21 are led out, respectively. Optionally, the housing 3 comprises a first housing, a second housing and a third housing, which are mutually screwed and form a chamber therein for housing the zero differential dual-flow transmission.
In one possible implementation, a spacer is provided between the first sun gear 16 and the second sun gear 14. Specifically, on the opposite faces of the two sun gears, there are provided detents, and the responsive pads have lugs thereon that mate with the detents to effect positional definition and spacing of the first sun gear 16 and the second sun gear 14 by mating the lugs with the detents.
The zero differential speed type double-flow transmission device of the embodiment is structurally characterized in that: the power flow is divided into two paths by using a fixed shaft gear (a straight running gear shaft 22 and a steering gear shaft 21) at the input end, one path controls straight running, the other path controls steering specially, the two paths of power respectively pass through a straight line mechanism and a steering mechanism, and then the two paths of power are converged into one path in the confluence differential assembly 1 at the output shaft 17 end. When the motor works at different rotating speeds, different steering effects can be generated. Each rotational speed has a prescribed turning radius.
In a straight running state, when the straight running motor is input, the steering motor stops running, power is simultaneously converged into the differential assemblies 1 on two sides, at the moment, the planet carrier wheels 18 are not moved, the straight running input bevel gear 26 drives the first driven bevel gear 25 to rotate, the first driven bevel gear 25 drives the first sun gears 16 of the two differential assemblies 1 to rotate, the first sun gears 16 drive the first planet gears 12 to rotate, the second planet gears 12 drive the second planet gears 13 to rotate, the second planet gears 13 drive the second sun gears 14 to rotate, the second sun gears 14 drive the output shafts 17 to rotate, and therefore two actions of straight running and reversing are achieved.
In-situ steering state, when the direct-drive motor is stopped, power is divided into positive rotation power and reverse rotation power and then is transmitted to the differential mechanism at two sides, at the moment, the direct-drive gear shaft 21 drives the direct-drive bevel gear 26 to rotate, the direct-drive bevel gear 26 drives the two second driven bevel gears 23 to rotate, the second driven bevel gear 23 drives the planet carrier wheel 18 to rotate, in the rotating process of the planet carrier wheel 18, the second planet gear 12 rotates around the first sun wheel 16, and the second planet gear 13 rotates around the second sun wheel 14, so that zero-radius in-situ rotation is realized.
And in a double-side differential state, when the steering motor is in a variable state when the straight motor is in a constant state for input, the driving wheel on one side increases the rotating speed, and the driving wheel on the other side decreases the rotating speed.
In a single-side locking state, when the straight motor and the steering motor are in a constant state at the same time, the driving wheel on one side increases the rotating speed, and the driving wheel on the other side stops acting.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (6)
1. The zero differential speed type double-flow transmission device is characterized by comprising two differential assemblies which are oppositely arranged and a power input assembly which is arranged between the two differential assemblies;
the power input assembly comprises a straight-line input bevel gear, a steering input bevel gear, a first driven bevel gear and two second driven bevel gears, wherein the straight-line input bevel gear is meshed with the first driven bevel gear, and the steering input bevel gear is meshed with the two second driven bevel gears; the two second driven bevel gears are respectively connected with a transmission straight gear;
the differential assembly comprises a planet carrier, a planet carrier wheel, a first sun wheel, a second sun wheel, a first planet wheel and a second planet wheel; the planet carrier is fixedly arranged on the disc surface of a planet carrier wheel, a first sun wheel and a second sun wheel are arranged on the axis of the planet carrier wheel, the first sun wheel is connected with the first driven bevel gear through a wheel shaft penetrating through the circle center of the planet carrier wheel, the second sun wheel is arranged on the top of the planet carrier, and the second sun wheel is connected with an output shaft of the device; the first planet gears are arranged on the disc surface of the planet carrier wheel and meshed with the first sun gear; the second planet wheel is arranged on the disc surface of the planet carrier wheel and meshed with the second sun wheel; the first planet wheel is meshed with the second planet wheel;
the two driving spur gears are respectively meshed with one planet carrier, and the first driven bevel gear is connected with a first sun gear of the other differential assembly through a wheel shaft.
2. The zero differential dual-flow transmission of claim 1, wherein the carrier wheel, the first sun wheel, the second sun wheel, the first planet wheel, and the second planet wheel are all spur gears.
3. The zero differential dual-flow transmission device as claimed in claim 1, wherein a drive motor is connected to a straight-running gear shaft of the straight-running input bevel gear and a steering gear shaft of the steering input bevel gear, respectively.
4. The zero differential dual-flow transmission device as defined in claim 1, wherein the zero differential dual-flow transmission device is arranged in a housing, and two output shafts and a straight gear shaft and a steering gear shaft are respectively led out from the housing.
5. The zero differential dual-flow transmission of claim 1, wherein spacer blocks are provided between the first sun gear and the second sun gear.
6. The zero differential dual-flow transmission of claim 1, wherein the number of first and second planets is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321836329.2U CN220320241U (en) | 2023-07-13 | 2023-07-13 | Zero differential speed type double-flow transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321836329.2U CN220320241U (en) | 2023-07-13 | 2023-07-13 | Zero differential speed type double-flow transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220320241U true CN220320241U (en) | 2024-01-09 |
Family
ID=89413246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321836329.2U Active CN220320241U (en) | 2023-07-13 | 2023-07-13 | Zero differential speed type double-flow transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220320241U (en) |
-
2023
- 2023-07-13 CN CN202321836329.2U patent/CN220320241U/en active Active
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