CN216200320U - Reversing structure for gearbox and gearbox - Google Patents
Reversing structure for gearbox and gearbox Download PDFInfo
- Publication number
- CN216200320U CN216200320U CN202122519487.2U CN202122519487U CN216200320U CN 216200320 U CN216200320 U CN 216200320U CN 202122519487 U CN202122519487 U CN 202122519487U CN 216200320 U CN216200320 U CN 216200320U
- Authority
- CN
- China
- Prior art keywords
- transmission
- reversing
- transmission shaft
- gearbox
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to an automatic transmission technical field, this switching-over structure for gearbox includes: the reversing mechanism comprises a first transmission shaft, a second transmission shaft and a reversing assembly; the reversing assembly comprises a reversing shell and a reversing transmission mechanism, the reversing shell is arranged on one side of the output end of the gearbox, the reversing transmission mechanism is arranged in the reversing shell, the first transmission shaft is in transmission connection with the second transmission shaft through the reversing transmission mechanism, the rotating direction of the first transmission shaft is opposite to that of the second transmission shaft, the reversing transmission mechanism is a gear set, a gap is reserved between the inner wall of the reversing shell and the outer peripheral side of the gear set, and the gap is used for adjusting the transmission ratio of the gear set. The structure can change the rotation direction of the output shaft of the gearbox through the arrangement of the reversing transmission mechanism, and meanwhile, the reversing transmission mechanism can properly adjust the transmission ratio by matching with a gap between the inner wall of the reversing shell and the peripheral side of the reversing transmission mechanism, so that the reversing transmission mechanism is matched with the transmission ratios required by different vehicle enterprises.
Description
Technical Field
The utility model relates to an automatic transmission technical field especially relates to a gearbox is with switching-over structure and gearbox.
Background
An automotive transmission is a set of transmission devices for coordinating the rotational speed of an engine and the actual driving speed of wheels, and is used for exerting the best performance of the engine. The transmission can generate different gear ratios between an engine and wheels during the running process of the automobile, and the transmission of the rotating speeds of different gears is realized.
The manual transmission mainly comprises gears and a rotating shaft, and the speed change and torque change are generated by different gear combinations; the automatic transmission AT consists of a hydraulic torque converter, a planetary gear and a hydraulic control system, and achieves the purposes of speed and torque changing through a hydraulic transmission and gear combination mode.
Among them, the automatic transmission has advantages of comfortable driving, reducing fatigue of driver, etc., and has become a development direction of modern car configuration. The automatic transmission utilizes a planetary gear mechanism to change speed, can automatically change speed according to the degree of an accelerator pedal and the change of vehicle speed, and a driver only needs to operate the accelerator pedal to control the vehicle speed, so that the driver can watch road traffic with full attention without being confused by gear shifting.
When the output shaft of the gearbox is opposite to the rotation direction required to be transmitted, the traditional automatic gearbox is provided with a reversing mechanism on the output shaft of the gearbox to adjust the rotation direction of the output shaft to the required rotation direction, but the currently used reversing mechanisms all use a pair of fixed reversing gear sets to complete reversing work.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the currently used reversing mechanism is simple in function and cannot flexibly change the transmission ratio of the gearbox according to different application scenes of the gearbox, the disclosure provides a reversing structure for the gearbox.
In a first aspect, the present disclosure provides a reversing structure for a transmission, comprising: the reversing mechanism comprises a first transmission shaft, a second transmission shaft and a reversing assembly;
the reversing assembly comprises a reversing shell and a reversing transmission mechanism, the reversing shell is arranged on one side of the output end of the gearbox, the reversing transmission mechanism is arranged in the reversing shell, the first transmission shaft is in transmission connection with the second transmission shaft through the reversing transmission mechanism, the rotating direction of the first transmission shaft is opposite to that of the second transmission shaft, the reversing transmission mechanism is a gear set, a gap is reserved between the inner wall of the reversing shell and the outer peripheral side of the gear set, and the gap is used for adjusting the transmission ratio of the gear set.
Optionally, the gear set includes an even number of gears, all the gears are meshed in sequence, and two gears at two ends are correspondingly connected with the first transmission shaft and the second transmission shaft in a transmission manner.
Optionally, the gear set includes a first transmission gear and a second transmission gear, the first transmission gear is meshed with the second transmission gear, the first transmission gear is in coaxial transmission connection with the first transmission shaft, and the second transmission gear is in coaxial transmission connection with the second transmission shaft.
Optionally, a gap is left between the addendum circle of the first transmission gear and the addendum circle of the second transmission gear, which correspond to the inner wall of the reversing shell.
Optionally, the first transmission gear and the first transmission shaft are integrally formed, and the second transmission gear and the second transmission shaft are integrally formed.
Optionally, both ends of the first transmission shaft are correspondingly installed on the gearbox shell and the reversing shell through bearings, and both ends of the second transmission shaft are correspondingly installed on the gearbox shell and the reversing shell through bearings.
Optionally, an output port is arranged on the reversing shell, one end of the second transmission shaft extends out of the output port, and a flange plate is arranged at the extending end of the second transmission shaft.
Optionally, an oil seal is arranged between the second transmission shaft and the output port.
Optionally, oil passages are arranged in the first transmission shaft and the second transmission shaft.
In a second aspect, the present disclosure provides a transmission including the reversing structure described above.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the utility model provides a switching-over structure and gearbox for gearbox can change the rotation direction of gearbox output shaft through setting up of gear train, cooperates the space between the week side of the inner wall of switching-over shell and gear train simultaneously, enables its drive ratio of gear train suitable adjustment to match with the required drive ratio of different car enterprises, need not change or adjust the planetary gear set in the gearbox, and the regulation mode is simple and convenient more.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a reversing structure for a transmission according to an embodiment of the present disclosure.
Wherein, 11, the first transmission shaft; 12. a second drive shaft; 21. a reversing shell; 22. a reversing transmission mechanism; 221. a first drive gear; 222. a second transmission gear; 3. an oil path; 4. a bearing; 5. a flange plate; 6. oil sealing; 7. and (5) rectangular sealing.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
An automotive transmission is a set of transmission devices for coordinating the rotational speed of an engine and the actual driving speed of wheels, and is used for exerting the best performance of the engine. The transmission can generate different gear ratios between an engine and wheels during the running process of the automobile, and the transmission of the rotating speeds of different gears is realized.
The manual transmission mainly comprises gears and a rotating shaft, and the speed change and torque change are generated by different gear combinations; the automatic transmission AT consists of a hydraulic torque converter, a planetary gear and a hydraulic control system, and achieves the purposes of speed and torque changing through a hydraulic transmission and gear combination mode.
Among them, the automatic transmission has advantages of comfortable driving, reducing fatigue of driver, etc., and has become a development direction of modern car configuration. The automatic transmission utilizes a planetary gear mechanism to change speed, can automatically change speed according to the degree of an accelerator pedal and the change of vehicle speed, and a driver only needs to operate the accelerator pedal to control the vehicle speed, so that the driver can watch road traffic with full attention without being confused by gear shifting.
When the output shaft of the gearbox is opposite to the rotation direction required to be transmitted in the prior art, the traditional automatic gearbox is provided with a reversing mechanism on the output shaft of the gearbox to adjust the rotation direction of the output shaft to the required rotation direction, but the currently used reversing mechanism uses a pair of fixed reversing gear sets to complete reversing work.
Based on this, this embodiment provides a switching-over structure and gearbox for gearbox, can change the rotation direction of gearbox output shaft through setting up of gear train, cooperates the space between the week side of the inner wall of switching-over shell and gear train simultaneously, enables its drive ratio of gear train suitable adjustment to match with the required drive ratio of different car enterprises, need not change or adjust the planetary gear set in the gearbox, and the regulation mode is simple and convenient more. This is illustrated in detail by the following specific examples:
referring to fig. 1, the reversing structure for a transmission according to the present embodiment includes a first transmission shaft 11, a second transmission shaft 12, and a reversing assembly.
Wherein, the reversing component comprises a reversing shell 21 and a reversing transmission mechanism 22, the reversing shell 21 is arranged at one side of the output end of the gearbox, the reversing transmission mechanism 22 is arranged in the reversing shell 21, the first transmission shaft 11 is in transmission connection with the second transmission shaft 12 through the reversing transmission mechanism 22, the rotation direction of the first transmission shaft 11 is opposite to that of the second transmission shaft 12, the reversing transmission mechanism 22 is a gear set, a gap is reserved between the inner wall of the reversing shell 21 and the peripheral side of the gear set and used for adjusting the transmission ratio of the gear set, the rotation direction of the output shaft of the gearbox can be changed through the arrangement of the gear set, and the transmission ratio of the gear set can be properly adjusted by matching the gap between the inner wall of the reversing shell 21 and the peripheral side of the gear set, so as to be matched with the transmission ratios required by different vehicle enterprises, and the planetary gear set in the gearbox does not need to be replaced or adjusted, the adjusting mode is simpler and more convenient.
In some embodiments, the gear set includes an even number of gears, all of which are engaged in sequence, and two gears at both ends are in driving connection with the first transmission shaft 11 and the second transmission shaft 12.
In a further embodiment, the gear set includes a first transmission gear 221 and a second transmission gear 222, the first transmission gear 221 is engaged with the second transmission gear 222, the first transmission gear 221 is in coaxial transmission connection with the first transmission shaft 11, the second transmission gear 222 is in coaxial transmission connection with the second transmission shaft 12, the power output by the gearbox can be reliably transmitted while the rotation speed and the rotation direction are changed through the first transmission gear 221 and the second transmission gear 222, wherein a gap is reserved between the addendum circle of the first transmission gear 221 and the addendum circle of the second transmission gear 222 and the inner wall of the reversing shell 21, so that the first transmission gear 221 and the second transmission gear 222 both have an adjustable space, and the size of the first transmission gear 221 and the second transmission gear 222 only needs to be adjusted to ensure that the first transmission gear 221 and the second transmission gear 222 are engaged.
It should be noted that the reversing transmission mechanism 22 may also be a belt pulley set or a chain wheel set, as long as the reversing transmission mechanism 22 can stably transmit the power output by the transmission case and can change the rotation direction of the output shaft of the transmission case.
In some embodiments, the first transmission gear 221 is integrally formed with the first transmission shaft 11, and the second transmission gear 222 is integrally formed with the second transmission shaft 12, so that the whole reversing mechanism has a reduced number of parts, is more stable and reliable to work, has a lower failure rate, and has a less complex structure of the gears and the shafts, and a low production and processing cost.
Continuing to refer to fig. 1, both ends of the first transmission shaft 11 are correspondingly mounted on the transmission case and the reversing shell 21 through the bearings 4, and both ends of the second transmission shaft 12 are correspondingly mounted on the transmission case and the reversing shell 21 through the bearings 4, it should be understood that the bearings 4 are not only sleeved on the first transmission shaft 11 and the second transmission shaft 12, but also can be pushed against the position between the first transmission shaft 11 and the reversing shell 21 for reducing friction between the first transmission shaft 11 and the reversing shell 21, the bearings 4 not only play a role in supporting the first transmission shaft 11 and the second transmission shaft 12, but also enable the first transmission shaft 11 and the second transmission shaft 12 to receive less friction, so that the service life of parts is prolonged while the mechanical transmission efficiency is improved.
In some embodiments, an output port is formed in the reversing shell 21, one end of the second transmission shaft 12 extends out of the output port, a flange 5 is arranged at the extending end of the second transmission shaft 12, the second transmission shaft 12 can be connected with a transmission shaft or a differential on a drive axle of the whole vehicle more conveniently through the flange 5, and meanwhile, the connection part can be guaranteed to work reliably and is convenient to maintain and replace.
In a further embodiment, an oil seal 6 is arranged between the second transmission shaft 12 and the output port, and the arrangement of the oil seal 6 can ensure the sealing performance of the transmission case and prevent oil leakage and oil leakage, and it should be noted that a section of matched annular groove close to the output port with the second transmission shaft 12 is arranged in the reversing shell 21, and a rectangular seal 7 matched with the annular groove is arranged on the second transmission shaft 12, so that the sealing performance of the whole transmission case is further improved, and the probability of oil leakage and oil leakage at the output port is reduced.
Continuing to refer to fig. 1, oil circuit 3 is provided in first transmission shaft 11 and second transmission shaft 12, and oil circuit 3 can be communicated to other shaft bodies or oil circuits in the gearbox while cooling and lubricating first transmission shaft 11 and second transmission shaft 12, so that the lubricating oil circuit and the cooling oil circuit of the whole gearbox are communicated into a whole, and the cooling and lubricating efficiency is higher.
The present disclosure further provides a gearbox including the above reversing structure.
The specific implementation manner and implementation principle are the same as those of the above embodiments, and can bring the same or similar technical effects, and are not described in detail herein, and reference may be made to the description of the embodiment of the reversing structure for a transmission.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A shift structure for a transmission, comprising: a first transmission shaft (11), a second transmission shaft (12) and a reversing assembly;
the switching-over subassembly includes switching-over shell (21) and switching-over drive mechanism (22), switching-over shell (21) sets up the one side at the gearbox output, switching-over drive mechanism (22) set up in switching-over shell (21), first transmission shaft (11) are passed through switching-over drive mechanism (22) with second transmission shaft (12) transmission is connected, the direction of rotation of first transmission shaft (11) with the direction of rotation of second transmission shaft (12) is opposite, switching-over drive mechanism (22) are the gear train, the inner wall of switching-over shell (21) with leave the space between the periphery side of gear train, the space is used for adjusting the drive ratio of gear train.
2. A reversing structure for a gearbox according to claim 1, wherein said set of gears comprises an even number of gears, all of said gears being in sequential mesh, and two of said gears at each end being in driving connection with said first (11) and second (12) drive shafts.
3. The reversing structure for the gearbox according to claim 2, wherein the gear set comprises a first transmission gear (221) and a second transmission gear (222), the first transmission gear (221) is meshed with the second transmission gear (222), the first transmission gear (221) is in coaxial transmission connection with the first transmission shaft (11), and the second transmission gear (222) is in coaxial transmission connection with the second transmission shaft (12).
4. The reversing structure for a transmission according to claim 3, wherein a gap is left between the inner wall of the reversing case (21) corresponding to the addendum circle of the first transmission gear (221) and the addendum circle of the second transmission gear (222).
5. A reversing structure for a gearbox according to claim 3, characterized in that said first transmission gear (221) is integrally formed with said first transmission shaft (11), and said second transmission gear (222) is integrally formed with said second transmission shaft (12).
6. The reversing structure for the gearbox according to claim 1, wherein both ends of the first transmission shaft (11) are correspondingly mounted on the gearbox housing and the reversing shell (21) through bearings (4), and both ends of the second transmission shaft (12) are correspondingly mounted on the gearbox housing and the reversing shell (21) through bearings (4).
7. A reversing structure for a gearbox according to claim 1, characterized in that an output port is provided on the reversing housing (21), an end of the second drive shaft (12) extends from the output port, and an extending end of the second drive shaft (12) is provided with a flange (5).
8. The reversing structure for a transmission according to claim 7, wherein an oil seal (6) is provided between the second transmission shaft (12) and the output port.
9. The reversing structure for a transmission according to claim 1, wherein an oil passage (3) is provided in each of the first transmission shaft (11) and the second transmission shaft (12).
10. A gearbox comprising a commutating structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122519487.2U CN216200320U (en) | 2021-10-19 | 2021-10-19 | Reversing structure for gearbox and gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122519487.2U CN216200320U (en) | 2021-10-19 | 2021-10-19 | Reversing structure for gearbox and gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200320U true CN216200320U (en) | 2022-04-05 |
Family
ID=80884682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122519487.2U Active CN216200320U (en) | 2021-10-19 | 2021-10-19 | Reversing structure for gearbox and gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200320U (en) |
-
2021
- 2021-10-19 CN CN202122519487.2U patent/CN216200320U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7387588B2 (en) | Planetary gear train | |
| CN108386496B (en) | Mechanical gear type stepless automatic speed variator | |
| CN109318704B (en) | Electric drive transmission device | |
| JPS61140672A (en) | Oil dividing device in automatic speed changer | |
| CN108730435A (en) | The double dynamical infinitely variable transmission of electric vehicle | |
| CN105673782A (en) | Automatic gearbox | |
| CN110549847A (en) | Driving transmission device for automobile power system | |
| CN109693529A (en) | A kind of hybrid power dedicated transmission | |
| CN216200320U (en) | Reversing structure for gearbox and gearbox | |
| CN109203986B (en) | Two-gear electric drive transmission device | |
| CN113639027A (en) | Reversing structure for gearbox and gearbox | |
| CN215908357U (en) | Connection structure of gearbox input shaft and gearbox | |
| CN108001216B (en) | Electric automobile power assembly based on continuously variable transmission | |
| EP1577583A1 (en) | Automatic speed changer | |
| CN112128321B (en) | Planetary row type two-gear electric drive transmission device and operation method thereof | |
| CN214221917U (en) | Continuously variable automatic transmission device, continuously variable automatic transmission, and motor vehicle | |
| CN212250995U (en) | Multi-speed transmission | |
| JPH04285354A (en) | Transmission for vehicle | |
| JPH08285033A (en) | Belt-type continuously variable transmission | |
| CN208686902U (en) | The double dynamical infinitely variable transmission of electric vehicle | |
| CN218408462U (en) | Gearbox oil circuit structure, gearbox and vehicle | |
| CN110030336A (en) | A kind of more gear electric car power-driven systems containing V belt translation | |
| CN219159463U (en) | Oil pump driving mechanism, gearbox and vehicle | |
| US5921882A (en) | Dual cavity torodial traction drive transmission having multiple speed inputs to a planetary gear unit | |
| CN211423288U (en) | Reduction gearbox for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |