CN217125048U - Reversing mechanism, engine, transmission system and motor tricycle - Google Patents

Reversing mechanism, engine, transmission system and motor tricycle Download PDF

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Publication number
CN217125048U
CN217125048U CN202220028769.4U CN202220028769U CN217125048U CN 217125048 U CN217125048 U CN 217125048U CN 202220028769 U CN202220028769 U CN 202220028769U CN 217125048 U CN217125048 U CN 217125048U
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bevel gear
gear
reverse
input
output
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张元胜
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Abstract

The utility model discloses a reversing mechanism, engine, transmission system and motor tricycle, wherein transmission system includes input shaft and output shaft, the overhead cover of output shaft has relative forward output bevel gear subassembly of flank of tooth and reverse output bevel gear subassembly, be provided with on the input shaft simultaneously with forward output bevel gear subassembly and reverse output bevel gear subassembly meshing driven input bevel gear, the transmission is connected with the sliding sleeve subassembly on the output shaft between forward output bevel gear subassembly and the reverse output bevel gear subassembly; the sliding sleeve component slides left and right and is in transmission connection with the forward output bevel gear component or the reverse output bevel gear component respectively. The utility model discloses an above-mentioned design can improve operational reliability, avoids breaking down in the course of the work, improves the life of mechanism.

Description

Reversing mechanism, engine, transmission system and motor tricycle
Technical Field
The utility model relates to a motor tricycle field especially relates to transmission system, engine and reversing mechanism of motorcycle.
Background
For the existing middle-axle motor tricycle, the transmission system comprises a heat engine, a gearbox and a rear axle, wherein a differential mechanism is arranged in the middle of the rear axle or on one side of the middle of the rear axle, the differential mechanism divides the rear axle into a left half axle and a right half axle, and the left half axle and the right half axle are respectively connected with a left rear wheel and a right rear wheel. Usually, a reversing mechanism is arranged at the output end of the gearbox to realize the forward and backward movement of the motor tricycle.
The existing gear shifting component realizes reversing of forward and backward through one output bevel gear and two output bevel gears, but the reliability of the gear shifting component is low.
SUMMERY OF THE UTILITY MODEL
A first object of the present invention is to provide a reversing mechanism with higher reliability.
In order to achieve the above object, the present invention is realized as follows: the reversing mechanism comprises an input shaft and an output shaft, and is characterized in that: a forward output bevel gear component and a reverse output bevel gear component with opposite tooth surfaces are sleeved above the output shaft, an input bevel gear which is simultaneously in meshing transmission with the forward output bevel gear component and the reverse output bevel gear component is arranged on the input shaft, and a sliding sleeve component is in transmission connection with the output shaft between the forward output bevel gear component and the reverse output bevel gear component; the forward output bevel gear assembly/the reverse output bevel gear assembly comprises a forward gear sleeve/a reverse gear sleeve, the forward gear sleeve/the reverse gear sleeve is sleeved on the output shaft in a hollow mode and is limited axially, the forward gear sleeve/the reverse gear sleeve is connected with a forward output bevel gear/a reverse output bevel gear in an external transmission mode, and the forward output bevel gear/the reverse output bevel gear is in meshing transmission with the input bevel gear; the reverse output bevel gear component/the forward output bevel gear component comprises a reverse output bevel gear/a forward output bevel gear, the reverse output bevel gear/the forward output bevel gear is sleeved on the output shaft in an empty mode and is limited in the axial direction, and the reverse output bevel gear/the forward output bevel gear is in meshing transmission with the input bevel gear; the sliding sleeve component slides left and right and is in transmission connection with the forward output bevel gear component or the reverse output bevel gear component respectively.
Furthermore, the forward output bevel gear component comprises the forward gear sleeve, the forward gear sleeve is sleeved on the output shaft in a hollow mode and is limited axially, a forward output bevel gear is connected to the outside of the forward gear sleeve in a transmission mode, and the forward output bevel gear is in meshing transmission with the input bevel gear; the reverse output bevel gear component comprises a reverse output bevel gear, the reverse output bevel gear is sleeved on the output shaft in an empty mode and limited in the axial direction, and the reverse output bevel gear is in meshing transmission with the input bevel gear; the sliding sleeve component slides left and right and is in transmission connection with the forward gear sleeve or the reverse output bevel gear respectively.
Furthermore, one end of the forward gear sleeve facing the sliding sleeve assembly is provided with a first external gear A/a first internal gear A/a first external spline A/a first internal spline A/a first end face pawl A, the sliding sleeve assembly comprises a middle sliding sleeve positioned between the forward output bevel gear assembly and the reverse output bevel gear assembly, the middle sliding sleeve is in transmission connection with the output shaft, and one end of the middle sliding sleeve facing the forward gear sleeve is provided with a first internal gear B/a first external gear B/a first internal spline B/a first external spline B/a first end face pawl B in transmission connection with the first external gear A/the first internal spline A/the end face pawl A.
Furthermore, one end of the reverse output bevel gear facing the sliding sleeve assembly is provided with a second external gear A/a second internal gear A/a second external spline A/a second internal spline A/a second end face pawl A, and one end of the middle sliding sleeve facing the reverse output bevel gear is provided with a second internal gear B/a second external gear B/a second internal spline B/a second external spline B/a second end face pawl B in transmission connection with the second external gear A/the second internal gear A/the second external spline A/the second end face pawl A.
Furthermore, the reverse output bevel gear component comprises the reverse gear sleeve, the reverse gear sleeve is sleeved on the output shaft in an empty mode and is limited in the axial direction, a reverse output bevel gear is connected to the outside of the reverse gear sleeve in a transmission mode, and the reverse output bevel gear is in meshing transmission with the input bevel gear; the forward output bevel gear component comprises a forward output bevel gear, the forward output bevel gear is sleeved on the output shaft in an idle mode and limited in the axial direction, and the forward output bevel gear is in meshing transmission with the input bevel gear; the sliding sleeve component slides left and right and is in transmission connection with the reverse gear sleeve or the forward output bevel gear respectively.
Furthermore, the middle part of the middle sliding sleeve of the sliding sleeve assembly is provided with an annular groove, the middle sliding sleeve is driven by the gear shifting assembly, the gear shifting assembly comprises a shifting fork matched with the annular groove, the shifting fork is sleeved on the shifting fork shaft, and the gear shifting mechanism is used for limiting the shifting fork.
In order to realize the first purpose, the utility model discloses can also set up like this: the reversing mechanism comprises an input shaft and an output shaft, and is characterized in that: a forward input bevel gear component and a reverse input bevel gear component with opposite tooth surfaces are sleeved on the input shaft in an air-tight manner, an output bevel gear which is simultaneously in meshing transmission with the forward input bevel gear component and the reverse input bevel gear component is arranged on the output shaft, and a sliding sleeve component is in transmission connection with the input shaft between the forward input bevel gear component and the reverse input bevel gear component; the forward input bevel gear assembly/the reverse input bevel gear assembly comprises a forward gear sleeve/a reverse gear sleeve, the forward gear sleeve/the reverse gear sleeve is sleeved on the input shaft in an empty mode and is limited in the axial direction, the forward input bevel gear/the reverse input bevel gear are in transmission connection with the forward input bevel gear/the reverse input bevel gear in an external mode, and the forward input bevel gear/the reverse input bevel gear are in meshing transmission with the output bevel gear; the reverse input bevel gear component/the forward input bevel gear component comprises a reverse input bevel gear/a forward input bevel gear, the reverse input bevel gear/the forward input bevel gear is sleeved on the input shaft in an empty mode and is limited in the axial direction, and the reverse input bevel gear/the forward input bevel gear is in meshing transmission with the output bevel gear; the sliding sleeve component slides left and right and is in transmission connection with the forward input bevel gear component or the reverse input bevel gear component respectively. With such an arrangement, reliability improvement can still be achieved.
A second object of the present invention is to provide an engine with higher reliability.
The engine comprises the reversing mechanism and a heat engine, wherein the output end of the heat engine is in transmission connection with the input end of the input shaft of the reversing mechanism.
A third object of the present invention is to provide a transmission system with higher reliability.
A transmission system comprises the reversing mechanism, wherein an input shaft and an output shaft are arranged perpendicularly, one end of the input shaft is in transmission connection with an input bevel gear, the other end of the input shaft is connected with a driven gear, and the transmission system further comprises a driving shaft which is in transmission connection with a driving gear in meshing transmission with the driven gear.
A fourth object of the present invention is to provide a motor tricycle with higher reliability.
A motor tricycle comprises the reversing mechanism, the shifting fork shaft extends out transversely, and a pedal is mounted at the end of the shifting fork shaft.
Has the advantages that:
first, the utility model provides a reversing mechanism through designing into a plurality of parts with the most frequently used positive output bevel gear subassembly and constitutes, can avoid positive output master gear directly to transmit power and moment of torsion to the output shaft through the sliding sleeve. The working reliability can be improved, the failure in the working process is avoided, and the service life of the mechanism is prolonged.
Second, the utility model provides a motorcycle, transmission system, engine, reversing mechanism design into a bevel gear for the input, and the bevel gear that the tooth face is relative in addition is the output, and the main shaft of heat engine output with reversing mechanism's input shaft transmission is connected, can make the output shaft is the perpendicular to the main shaft overall arrangement, so, the declutch shift shaft of the subassembly of shifting can directly transversely stretch out the connection footboard, need not through the switching-over many times, has shortened the transmission route and has reduced the part, has practiced thrift the cost and has improved the reliability of shifting.
Third, the utility model provides an inside oilhole formation oil film of opening of forward gear sleeve can guarantee that forward input bevel gear no longer with the direct rolling friction of output shaft, avoids wearing and tearing. And meanwhile, the forward gear sleeve is low in manufacturing cost and replacement cost.
Fourthly, the utility model discloses a reversing mechanism is applicable in current motor tricycle, is particularly useful for axis motor tricycle.
Drawings
FIG. 1 is a structural view (cross-section) of a reversing mechanism in embodiment 1;
FIG. 2 is a structural view (cross-section) of the reversing mechanism in embodiment 1;
FIG. 3 is an isometric view of a forward gear sleeve of embodiment 1;
FIG. 4 is an isometric view of the intermediate sliding sleeve of example 1;
FIG. 5 is an isometric view of the reversing mechanism of example 1 (including the shift unit).
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or replacements within the basic spirit of the embodiments still fall within the scope of the present invention claimed in the claims.
Example 1: as shown in fig. 1 to 5, a reversing mechanism comprises an input shaft 1 and an output shaft 2, a forward output bevel gear component and a reverse output bevel gear component with opposite tooth surfaces are sleeved on the output shaft in an air-covered manner, an input bevel gear 3 which is simultaneously in meshing transmission with the forward output bevel gear component and the reverse output bevel gear component is arranged on the input shaft 1, and a sliding sleeve component is in transmission connection with the output shaft between the forward output bevel gear component and the reverse output bevel gear component.
In this embodiment, the forward output bevel gear assembly comprises a forward gear sleeve 4, the forward gear sleeve is sleeved on the output shaft in an empty mode and is axially limited, a forward output bevel gear 5 is connected to the outside of the forward gear sleeve in a transmission mode, and the forward output bevel gear is axially limited and is in meshing transmission with the input bevel gear. The reverse output bevel gear component comprises a reverse output bevel gear 6, the reverse output bevel gear is sleeved on the output shaft in an empty mode and is limited in the axial direction, and the reverse output bevel gear is in meshing transmission with the input bevel gear. The sliding sleeve assembly comprises a middle sliding sleeve 7 which is positioned between the forward output bevel gear assembly and the reverse output bevel gear assembly and is in transmission connection with the output shaft, and the middle sliding sleeve is driven to slide left and right and is in transmission connection with the forward gear sleeve or the reverse output bevel gear respectively.
In this embodiment, the above-mentioned axial spacing mode of forward gear sleeve, forward output bevel gear, reverse output bevel gear can have a plurality ofly, and the accessible shoulder is fixed a position, the accessible snap ring is fixed a position, the accessible other parts are fixed a position, and it is not repeated here to omit one. In this embodiment, the transmission connection between the intermediate sliding sleeve and the output shaft may be an internal and external gear engagement transmission, a spline transmission, or the like.
In addition, one end of the forward gear sleeve, which faces the middle sliding sleeve, is provided with a first external gear A, and one end of the middle sliding sleeve, which faces the forward gear sleeve, is provided with a first internal gear B in meshing transmission with the first external gear A; or one end of the forward gear sleeve, which faces the middle sliding sleeve, is provided with a first internal gear A, and one end of the middle sliding sleeve, which faces the forward gear sleeve, is provided with a first external gear B in meshing transmission with the first external gear A; or one end of the forward gear sleeve, which faces the middle sliding sleeve, is provided with a first internal spline A, and one end of the middle sliding sleeve, which faces the forward gear sleeve, is provided with a first external spline B which is in transmission with the first internal spline A; or one end of the forward gear sleeve, which faces the middle sliding sleeve, is provided with a first external spline A, and one end section of the middle sliding sleeve, which faces the forward gear sleeve, is provided with a first internal spline B which is in transmission with the first external spline A; or the orientation of the forward gear sleeve is provided with a first end face pawl A at one end of the middle sliding sleeve, and the orientation of the middle sliding sleeve is provided with a first end face pawl B which is in transmission with the first internal spline A at one end of the forward gear sleeve.
In this embodiment, the first end surface pawl a is selectively disposed at one end of the forward gear sleeve facing the middle sliding sleeve, and the first end surface pawl B is disposed at one end of the middle sliding sleeve facing the forward gear sleeve. Specifically, the method comprises the following steps: first terminal surface pawl A in this embodiment is including setting up connection pad 41 of positive gear sleeve terminal surface, the connection pad is provided with a plurality of logical grooves 42 along circumference, and first terminal surface pawl B is for setting up a plurality of claw teeth 71 of the circumference overall arrangement that a middle sliding sleeve terminal surface and axial stretch out, it does to lead to the groove claw tooth circumference equipartition and one-to-one. As one of the solutions in this embodiment, the pawl tooth is a rectangular pawl.
In addition, a second external gear A is arranged at one end, facing the middle sliding sleeve, of the reverse output bevel gear, and a second internal gear B in meshing transmission with the second external gear A is arranged at one end, facing the reverse output bevel gear, of the middle sliding sleeve; or a second internal gear A is arranged at one end, facing the middle sliding sleeve, of the reverse output bevel gear, and a second external gear B in meshing transmission with the second internal gear A is arranged at one end, facing the reverse output bevel gear, of the middle sliding sleeve; or one end of the reverse output bevel gear, which faces the middle sliding sleeve, is provided with a second external spline A, and one end of the middle sliding sleeve, which faces the reverse output bevel gear, is provided with a second internal spline B which is in transmission with the second external spline A; or one end of the reverse output bevel gear, which faces the middle sliding sleeve, is provided with a second internal spline A, and one end of the middle sliding sleeve, which faces the reverse output bevel gear, is provided with a second external spline B which is in transmission with the second internal spline A; or one end of the reverse output bevel gear, which faces the middle sliding sleeve, is provided with a second end face pawl A, and one end of the middle sliding sleeve, which faces the reverse output bevel gear, is provided with a second end face pawl B which is in transmission with the second end face pawl A.
In this embodiment, the second internal gear a61 is optionally provided at the end of the reverse output bevel gear facing the intermediate sliding sleeve, and the second external gear B72 is provided at the end of the intermediate sliding sleeve facing the reverse output bevel gear.
That is, in this embodiment, one section of the middle sliding sleeve is provided with a pawl extending axially, and the other end is provided with an external spline. And an annular groove 73 is provided in the middle of the intermediate sliding sleeve.
As another implementation manner in this embodiment, the reversing mechanism further includes a shift assembly, the shift assembly includes a shift fork 8 that is matched with the annular groove, the shift fork is sleeved on the shift fork shaft 9, and the shift mechanism further includes a gear mechanism that limits the shift fork.
The embodiment further provides an engine, which comprises the reversing mechanism and a heat engine, wherein the output end of the heat engine is in transmission connection with the input end of the input shaft of the reversing mechanism in the embodiment. As another implementation manner in this embodiment, the output end of the heat engine is connected to a transmission, and the output end of a countershaft of the transmission is in transmission connection with the input end of the input shaft of the reversing mechanism in this embodiment.
The embodiment also provides a transmission system which comprises the engine, wherein the input shaft is perpendicular to the output shaft. The embodiment also provides a motor tricycle which comprises the transmission system. Wherein, the front-back direction of the motor tricycle is taken as the longitudinal direction, and the left-right direction is taken as the transverse direction. The input shaft is transversely arranged, the output shaft is longitudinally arranged, the shifting fork shaft transversely extends out of the motor tricycle, and a pedal 10 is arranged at the end part of the extending end of the shifting fork shaft. The reversing mechanism can be easily reversed by stepping on the pedal, and the reliability and the stability of the reversing mechanism in the reversing process can be improved.
In this embodiment, an axial oil passage is arranged in the middle of the output shaft, and radial oil holes are formed in the oil passage facing the forward gear sleeve, the middle sliding sleeve and the reverse output bevel gear. And an oil hole is formed in the inner side of the forward gear sleeve. Lubricating oil in the oil hole can form an oil film when working, so that the forward input bevel gear can be ensured not to be in direct rolling friction with the output shaft, and abrasion is avoided.
By adopting the reversing mechanism of the motor tricycle, when a vehicle needs to advance, a pedal can be stepped by feet to rotate forwards, so that the shifting fork of the gear shift assembly drives the middle sliding sleeve to slide backwards and realize pawl matching with the forward gear sleeve of the forward output bevel gear assembly, and the transmission route at the moment is as follows: the input bevel gear on the input shaft → the forward output bevel gear → the forward gear sleeve → the intermediate sliding sleeve → the output shaft, at this time, the output shaft rotates forward, and the vehicle is in a forward state. When the vehicle needs to retreat, the pedal can be stepped by feet to rotate backwards, so that the shifting fork of the gear shifting assembly drives the middle sliding sleeve to slide forwards and is in meshed transmission with the inner teeth and the outer teeth of the reverse output bevel gear, and the transmission route at the moment is as follows: the input bevel gear → the reverse output bevel gear → the middle sliding sleeve → the output shaft, at this time, the output shaft is in reverse rotation, and the vehicle is in a backward state.
This embodiment can improve operational reliability through above-mentioned design, avoids breaking down in the course of the work, improves the life of mechanism.
As another implementation manner in this embodiment, the reverse output bevel gear assembly includes a reverse gear sleeve that is hollow and axially limited on the output shaft, a reverse output bevel gear is connected to the reverse gear sleeve in a driving manner, the reverse output bevel gear is in a meshing driving manner with the input bevel gear, the forward output bevel gear assembly includes a forward output bevel gear that is hollow and axially limited on the output shaft, and the forward output bevel gear is in a meshing driving manner with the input bevel gear.
Example 2: the embodiment provides a reversing mechanism, which comprises an input shaft and an output shaft, wherein a forward input bevel gear component and a reverse input bevel gear component with opposite tooth surfaces are sleeved on the input shaft in an air-to-air mode, an output bevel gear which is simultaneously in meshing transmission with the forward input bevel gear component and the reverse input bevel gear component is arranged on the output shaft, and a sliding sleeve component is in transmission connection with the input shaft between the forward input bevel gear component and the reverse input bevel gear component.
In this embodiment, the forward input bevel gear assembly includes a forward gear sleeve, the forward gear sleeve is loosely sleeved on the input shaft and is axially limited, the forward input bevel gear is connected to the outside of the forward gear sleeve in a transmission manner, and the forward input bevel gear is axially limited and is in meshing transmission with the output bevel gear. The reverse input bevel gear component comprises a reverse input bevel gear 6, the reverse input bevel gear is sleeved on the input shaft in an empty mode and is limited in the axial direction, and the reverse input bevel gear is in meshing transmission with the output bevel gear. The sliding sleeve assembly comprises a middle sliding sleeve which is positioned between the forward input bevel gear assembly and the reverse input bevel gear assembly and is in transmission connection with the input shaft, and the middle sliding sleeve is driven to slide left and right and is in transmission connection with the forward gear sleeve or the reverse input bevel gear respectively.
In this embodiment, the above-mentioned forward gear sleeve, forward input bevel gear, reverse input bevel gear's the spacing mode of axial can have a plurality ofly, and the accessible shoulder is fixed a position, the accessible snap ring is fixed a position, the accessible other parts are fixed a position, and it is not repeated here to omit one. In this embodiment, the transmission connection between the intermediate sliding sleeve and the output shaft may be an internal and external gear engagement transmission, a spline transmission, or the like.
In addition, one end of the forward gear sleeve, which faces the middle sliding sleeve, is provided with a first external gear A, and one end of the middle sliding sleeve, which faces the forward gear sleeve, is provided with a first internal gear B in meshing transmission with the first external gear A; or one end of the forward gear sleeve, which faces the middle sliding sleeve, is provided with a first internal gear A, and one end of the middle sliding sleeve, which faces the forward gear sleeve, is provided with a first external gear B in meshing transmission with the first external gear A; or one end of the forward gear sleeve, which faces the middle sliding sleeve, is provided with a first internal spline A, and one end of the middle sliding sleeve, which faces the forward gear sleeve, is provided with a first external spline B which is in transmission with the first internal spline A; or one end of the forward gear sleeve, which faces the middle sliding sleeve, is provided with a first external spline A, and one end section of the middle sliding sleeve, which faces the forward gear sleeve, is provided with a first internal spline B which is in transmission with the first external spline A; or the orientation of the forward gear sleeve is provided with a first end face pawl A at one end of the middle sliding sleeve, and the orientation of the middle sliding sleeve is provided with a first end face pawl B which is in transmission with the first internal spline A at one end of the forward gear sleeve.
In this embodiment, the first end surface pawl a is selectively disposed at one end of the forward gear sleeve facing the middle sliding sleeve, and the first end surface pawl B is disposed at one end of the middle sliding sleeve facing the forward gear sleeve. Specifically, the method comprises the following steps: first terminal surface pawl A in this embodiment is including setting up the connection pad of positive gear sleeve terminal surface, the connection pad is provided with a plurality of logical grooves along circumference, and first terminal surface pawl B is for setting up a plurality of claw teeth of the circumference overall arrangement that a middle sliding sleeve terminal surface and axial stretch out, logical groove does claw tooth circumference equipartition and one-to-one. As one of the solutions in this embodiment, the pawl tooth is a rectangular pawl.
In addition, a second external gear A is arranged at one end, facing the middle sliding sleeve, of the reverse input bevel gear, and a second internal gear B in meshing transmission with the second external gear A is arranged at one end, facing the reverse output bevel gear, of the middle sliding sleeve; or a second internal gear A is arranged at one end, facing the middle sliding sleeve, of the reverse input bevel gear, and a second external gear B in meshing transmission with the second internal gear A is arranged at one end, facing the reverse input bevel gear, of the middle sliding sleeve; or one end of the reverse input bevel gear, which faces the middle sliding sleeve, is provided with a second external spline A, and one end of the middle sliding sleeve, which faces the reverse input bevel gear, is provided with a second internal spline B which is in transmission with the second external spline A; or one end of the reverse input bevel gear, which faces the middle sliding sleeve, is provided with a second internal spline A, and one end of the middle sliding sleeve, which faces the reverse input bevel gear, is provided with a second external spline B which is in transmission with the second internal spline A; or one end of the reverse input bevel gear, which faces the middle sliding sleeve, is provided with a second end face pawl A, and one end of the middle sliding sleeve, which faces the reverse input bevel gear, is provided with a second end face pawl B which is in transmission with the second end face pawl A.
In this embodiment, the second internal gear a is selectively disposed at one end of the reverse input bevel gear facing the intermediate sliding sleeve, and the second external gear B is disposed at one end of the intermediate sliding sleeve facing the reverse input bevel gear.
That is, in this embodiment, one section of the middle sliding sleeve is provided with a pawl extending axially, and the other end is provided with an external spline. And an annular groove is arranged in the middle of the middle sliding sleeve.
As another implementation manner in this embodiment, the reversing mechanism further includes a shift assembly, the shift assembly includes a shift fork that is matched with the annular groove, the shift fork is sleeved on the shift fork shaft, and the shift mechanism further includes a gear mechanism that limits the shift fork.
The embodiment further provides an engine, which comprises the reversing mechanism and a heat engine, wherein the output end of the heat engine is in transmission connection with the input end of the input shaft of the reversing mechanism in the embodiment. As another implementation manner in this embodiment, the output end of the heat engine is connected to a transmission, and the output end of a countershaft of the transmission is in transmission connection with the input end of the input shaft of the reversing mechanism in this embodiment.
The embodiment also provides a transmission system which comprises the engine, wherein the input shaft is perpendicular to the output shaft. The embodiment also provides a motor tricycle which comprises the transmission system. Wherein, the front-back direction of the motor tricycle is taken as the longitudinal direction, and the left-right direction is taken as the transverse direction. The input shaft is transversely arranged, the output shaft is longitudinally arranged, the shifting fork shaft transversely extends out of the motor tricycle after reversing by the pair of bevel gears, and a pedal is mounted at the end part of the extending end of the shifting fork shaft. The reversing mechanism can be easily reversed by stepping on the pedal, and the reliability and the stability of the reversing mechanism in the reversing process can be improved.
In this embodiment, an axial oil passage is arranged in the middle of the output shaft, and radial oil holes are formed in the oil passage facing the forward gear sleeve, the middle sliding sleeve and the reverse output bevel gear. And an oil hole is formed in the inner side of the forward gear sleeve. Lubricating oil in the oil hole can form an oil film when working, so that the forward input bevel gear can be ensured not to be in direct rolling friction with the output shaft, and abrasion is avoided.
By adopting the reversing mechanism of the motor tricycle, when a vehicle needs to advance, a pedal can be stepped by feet to rotate forwards, so that the shifting fork of the gear shift assembly drives the middle sliding sleeve to slide backwards and realize pawl matching with the forward gear sleeve of the forward input bevel gear assembly, and the transmission route at the moment is as follows: input shaft → middle sliding bush → forward gear bush → forward input bevel gear → output shaft, at this moment, the output shaft is in forward rotation, the vehicle is in forward state. When the vehicle needs to retreat, the pedal can be stepped by feet to rotate backwards, so that the shifting fork of the gear shifting assembly drives the middle sliding sleeve to slide forwards and is in meshed transmission with the inner teeth and the outer teeth of the reverse input bevel gear, and the transmission route at the moment is as follows: the input shaft → the middle sliding sleeve → the reverse input bevel gear → the output shaft, and the vehicle is in a backward state.
This embodiment can improve operational reliability through above-mentioned design, avoids breaking down in the course of the work, improves the life of mechanism.
As another implementation manner in this embodiment, the reverse input bevel gear assembly includes a reverse gear sleeve that is hollow and axially limited on the input shaft, a reverse input bevel gear is connected to the reverse gear sleeve in a driving manner, the reverse input bevel gear is in a meshing driving connection with the output bevel gear, the forward output bevel gear assembly includes a forward input bevel gear that is hollow and axially limited on the input shaft, and the forward input bevel gear is in a meshing driving connection with the output bevel gear.

Claims (10)

1. The reversing mechanism comprises an input shaft and an output shaft, and is characterized in that: a forward output bevel gear component and a reverse output bevel gear component with opposite tooth surfaces are sleeved above the output shaft, an input bevel gear which is simultaneously in meshing transmission with the forward output bevel gear component and the reverse output bevel gear component is arranged on the input shaft, and a sliding sleeve component is in transmission connection with the output shaft between the forward output bevel gear component and the reverse output bevel gear component;
the forward output bevel gear assembly/the reverse output bevel gear assembly comprises a forward gear sleeve/a reverse gear sleeve, the forward gear sleeve/the reverse gear sleeve is sleeved on the output shaft in a hollow mode and is limited axially, the forward gear sleeve/the reverse gear sleeve is connected with a forward output bevel gear/a reverse output bevel gear in an external transmission mode, and the forward output bevel gear/the reverse output bevel gear is in meshing transmission with the input bevel gear;
the reverse output bevel gear component/the forward output bevel gear component comprises a reverse output bevel gear/a forward output bevel gear, the reverse output bevel gear/the forward output bevel gear is sleeved on the output shaft in an empty mode and is limited in the axial direction, and the reverse output bevel gear/the forward output bevel gear is in meshing transmission with the input bevel gear;
the sliding sleeve component slides left and right and is in transmission connection with the forward output bevel gear component or the reverse output bevel gear component respectively.
2. The reversing mechanism as claimed in claim 1, wherein: the forward output bevel gear component comprises the forward gear sleeve, the forward gear sleeve is sleeved on the output shaft in an empty mode and is limited in the axial direction, a forward output bevel gear is connected to the outside of the forward gear sleeve in a transmission mode, and the forward output bevel gear is in meshing transmission with the input bevel gear; the reverse output bevel gear component comprises a reverse output bevel gear, the reverse output bevel gear is sleeved on the output shaft in an empty mode and limited in the axial direction, and the reverse output bevel gear is in meshing transmission with the input bevel gear; the sliding sleeve component slides left and right and is in transmission connection with the forward gear sleeve or the reverse output bevel gear respectively.
3. The reversing mechanism as claimed in claim 2, wherein: one end of the forward gear sleeve facing the sliding sleeve assembly is provided with a first external gear A/first internal gear A/first external spline A/first internal spline A/first end face pawl A, the sliding sleeve assembly comprises a middle sliding sleeve positioned between the forward output bevel gear assembly and the reverse output bevel gear assembly, the middle sliding sleeve is in transmission connection with the output shaft, and one end of the middle sliding sleeve facing the forward gear sleeve is provided with a first internal gear B/first external gear B/first internal spline B/first external spline B/first end face pawl B in transmission connection with the first external gear A/first internal spline A/end face pawl A.
4. The reversing mechanism as claimed in claim 3, wherein: one end of the reverse output bevel gear, which faces the sliding sleeve assembly, is provided with a second external gear A/a second internal gear A/a second external spline A/a second internal spline A/a second end face pawl A, and one end of the middle sliding sleeve, which faces the reverse output bevel gear, is provided with a second internal gear B/a second external gear B/a second internal spline B/a second external spline B/a second end face pawl B, which are in transmission connection with the second external gear A/the second internal spline A/the second end face pawl A.
5. The reversing mechanism as claimed in claim 1, wherein: the reverse output bevel gear component comprises the reverse gear sleeve, the reverse gear sleeve is sleeved on the output shaft in a hollow mode and is limited in the axial direction, a reverse output bevel gear is connected to the outside of the reverse gear sleeve in a transmission mode, and the reverse output bevel gear is in meshing transmission with the input bevel gear; the forward output bevel gear component comprises a forward output bevel gear, the forward output bevel gear is sleeved on the output shaft in an idle mode and limited in the axial direction, and the forward output bevel gear is in meshing transmission with the input bevel gear; the sliding sleeve component slides left and right and is in transmission connection with the reverse gear sleeve or the forward output bevel gear respectively.
6. The reversing mechanism according to claim 4 or 5, wherein: the middle part of the middle sliding sleeve of the sliding sleeve assembly is provided with an annular groove, the middle sliding sleeve is driven by the gear shifting assembly, the gear shifting assembly comprises a shifting fork matched with the annular groove, and the shifting fork is sleeved on a shifting fork shaft.
7. The reversing mechanism comprises an input shaft and an output shaft, and is characterized in that: a forward input bevel gear component and a reverse input bevel gear component with opposite tooth surfaces are sleeved on the input shaft in an air-tight manner, an output bevel gear which is simultaneously in meshing transmission with the forward input bevel gear component and the reverse input bevel gear component is arranged on the output shaft, and a sliding sleeve component is in transmission connection with the input shaft between the forward input bevel gear component and the reverse input bevel gear component;
the forward input bevel gear assembly/the reverse input bevel gear assembly comprises a forward gear sleeve/a reverse gear sleeve, the forward gear sleeve/the reverse gear sleeve is sleeved on the input shaft in an empty mode and is limited in the axial direction, the forward input bevel gear/the reverse input bevel gear are in transmission connection with the forward input bevel gear/the reverse input bevel gear in an external mode, and the forward input bevel gear/the reverse input bevel gear are in meshing transmission with the output bevel gear;
the reverse input bevel gear component/the forward input bevel gear component comprises a reverse input bevel gear/a forward input bevel gear, the reverse input bevel gear/the forward input bevel gear is sleeved on the input shaft in an empty mode and is limited in the axial direction, and the reverse input bevel gear/the forward input bevel gear is in meshing transmission with the output bevel gear;
the sliding sleeve assembly slides left and right and is in transmission connection with the forward input bevel gear assembly or the reverse input bevel gear assembly respectively.
8. An engine, characterized in that: the reversing mechanism comprising any one of claims 1 to 7, comprising a heat engine, an output of the heat engine being in driving connection with an input of an input shaft of the reversing mechanism.
9. A transmission system, characterized by: the reversing mechanism comprises the reversing mechanism of any one of claims 1-6, wherein the input shaft is perpendicular to the output shaft, one end of the input shaft is in transmission connection with the input bevel gear, the other end of the input shaft is connected with a driven gear, and the input shaft is further provided with a driving shaft, and a driving gear in meshing transmission with the driven gear is in transmission connection with the driving shaft.
10. A motor tricycle, characterized in that: the reversing mechanism as claimed in claim 6, wherein said fork shaft extends laterally and a pedal is mounted on an end of said fork shaft.
CN202220028769.4U 2022-01-06 2022-01-06 Reversing mechanism, engine, transmission system and motor tricycle Active CN217125048U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220028769.4U CN217125048U (en) 2022-01-06 2022-01-06 Reversing mechanism, engine, transmission system and motor tricycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220028769.4U CN217125048U (en) 2022-01-06 2022-01-06 Reversing mechanism, engine, transmission system and motor tricycle

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CN217125048U true CN217125048U (en) 2022-08-05

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