CN111288151A - Reverse gear device of side motor tricycle - Google Patents

Reverse gear device of side motor tricycle Download PDF

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Publication number
CN111288151A
CN111288151A CN202010242662.5A CN202010242662A CN111288151A CN 111288151 A CN111288151 A CN 111288151A CN 202010242662 A CN202010242662 A CN 202010242662A CN 111288151 A CN111288151 A CN 111288151A
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CN
China
Prior art keywords
gear
shifting
shaft
bevel gear
fork
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.)
Pending
Application number
CN202010242662.5A
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Chinese (zh)
Inventor
胡雪焱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Furui Power Machinery Co ltd
Original Assignee
Chongqing Furui Power Machinery Co ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Chongqing Furui Power Machinery Co ltd filed Critical Chongqing Furui Power Machinery Co ltd
Priority to CN202010242662.5A priority Critical patent/CN111288151A/en
Publication of CN111288151A publication Critical patent/CN111288151A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/038—Gearboxes for accommodating bevel gears
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/22—Locking of the control input devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
    • F16H2061/185—Means, e.g. catches or interlocks, for preventing unintended shift into reverse gear

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Gear Transmission (AREA)

Abstract

A reverse gear device of a side motor tricycle comprises a box body, a main shaft is supported in a cavity of the box body, a gear shifting gear is circumferentially fixed on the main shaft, a reverse bevel gear is arranged on one side of the gear shifting gear, an output bevel gear is arranged on the other side of the gear shifting gear, a gap bridge bevel gear is respectively meshed with the reverse bevel gear and the output bevel gear, the reverse bevel gear is in sliding fit with the main shaft, the output bevel gear is supported on the box body and is provided with a hollow shaft section extending axially, one end of the hollow shaft section extends out of a circumferentially fixed output chain wheel of the box body, one end of the main shaft is supported in a shaft hole of the hollow shaft section and is connected with an engine output shaft, the box body is provided with a gear shifting shaft, a sliding shifting fork is arranged on the gear shifting shaft, a fork head of the sliding fork is clamped in a ring groove of the, the gear shifting device is used for driving the sliding shifting fork to move along the axial direction of the gear shifting shaft, and one end of the gear shifting shaft extends out of the box body and is fixedly connected with a gear shifting pedal in the circumferential direction.

Description

Reverse gear device of side motor tricycle
Technical Field
The invention relates to the field of side motor tricycles, in particular to a reverse gear device of a side motor tricycle.
Background
The existing side motor tricycle is not provided with a reverse gear generally, and can only reach a position needing to be retreated after being turned by a forward gear in a spacious field, so that the reached position is difficult to control, and energy is wasted. However, when the motor tricycle is driven on a narrow road, a driver can only get off the motor tricycle and manually push the motor tricycle, so that the direction of the motor tricycle is not easy to control, and great labor is consumed, thereby bringing great trouble to the user. The existing reverse gear of the regular motor tricycle is output by a shaft, an output shaft of the reverse gear drives a rear wheel of the regular motor tricycle to rotate through a transmission shaft, the output of the shaft has high requirements on the environment, the running environment of the motor tricycle is variable, the transmission shaft is easily influenced by the environment, the service life of the transmission shaft is shortened, the overload capacity of the output mode is weak, and the transmission efficiency is low.
Disclosure of Invention
The invention aims to provide a reverse gear device of a side three-wheeled motorcycle, which can realize reverse gear of the side three-wheeled motorcycle, brings great convenience for driving the side three-wheeled motorcycle, and is driven by a chain, so that the overload capacity and the adaptability are increased.
The technical scheme of the invention is as follows: a reverse gear device of a side motor tricycle comprises a box body, a main shaft is supported in a cavity of the box body through a bearing, a shifting gear capable of moving axially is fixed on the main shaft in the circumferential direction, a reverse bevel gear is arranged on one side of the shifting gear, an output bevel gear is arranged on the other side of the shifting gear, the reverse bevel gear and the output bevel gear are respectively provided with a combination tooth connected with the shifting gear, a bridging bevel gear is positioned between the reverse bevel gear and the output bevel gear and respectively meshed with the reverse bevel gear and the output bevel gear, the reverse bevel gear is in sliding fit on the main shaft, the output bevel gear is supported on the box body through the bearing, the output bevel gear is provided with a hollow shaft section extending in the axial direction, one end of the hollow shaft section extends out of the box body, an output chain wheel is fixed on the extending end in the circumferential direction, one end of the main shaft is, the shift shaft parallel with the main shaft is installed to the box, install a shift fork that slides on the shift shaft, the jaw card of shift fork that slides is in the ring channel of gear shifting, the fork tail cover of shift fork slides on the shift shaft, be equipped with a cam groove on the fork tail of shift fork that slides, one by shift shaft driven shifting pin insert in the cam groove for drive shift fork along shift shaft axial motion, the one end of shift shaft stretches out box and a pedal circumference fixed connection of shifting outward.
A shifting sleeve is circumferentially fixed on the upper shaft of the gear shifting shaft, a shifting pin is fixedly installed on the shifting sleeve through sliding fit of the shifting sleeve and the fork tail of the sliding shifting fork, and the shifting pin is inserted into a cam groove of the fork tail of the sliding shifting fork.
The shifting sleeve is axially limited by a limiting sleeve sleeved on the gear shifting shaft.
A gear locking sleeve is circumferentially fixed on the gear shifting shaft, a gear groove is formed in the circumference of the gear locking sleeve, a spring ejector pin is installed on the box body, and a wedge-shaped pin head arranged on the spring ejector pin corresponds to the gear groove.
The tail end of the spring ejector pin is provided with an axial blind hole, a compression spring is inserted into the axial blind hole and abuts against the compression spring through a bolt to form limiting, and a space is reserved between the spring ejector pin and the bolt.
The box outer wall sets up one and prevents maloperation mechanism, should prevent maloperation mechanism and include mount pad, spacer pin, the mount pad sets up two supports, and spacer pin sliding fit supports on two supports, and the cover has return spring on the shaft part that the spacer pin is located between two supports, and return spring one end supports a support, and the other end is spacing through a jump ring, the one end of spacer pin extends to the pedal below of shifting for the pedal maloperation of restriction shifting, the other end of spacer pin is used for the control cable of fixed connection by handle manipulation.
A box cover is arranged on one side of the box body, a hollow shaft section of the output bevel gear extends outwards from a bearing hole formed in the box cover, and an axially extending mounting column is arranged on the box cover.
The extension direction of the long axis of the cam groove is oblique to the axial direction of the tail of the sliding shifting fork.
One end of the output chain wheel is limited by a bushing sleeved on a hollow shaft section of the output bevel gear, and the other end of the output chain wheel is limited by a nut which is arranged on an external thread section of the hollow shaft section and is in threaded fit with the hollow shaft section.
And one end of the main shaft, which is positioned in the shaft hole of the hollow shaft section of the output bevel gear, is in splined connection with an internal spline sleeve, and the internal spline sleeve is used for being in splined connection with an output shaft of an engine.
Adopt above-mentioned technical scheme: the transmission device comprises a box body, a main shaft is supported in a cavity of the box body through a bearing, a shifting gear capable of moving axially is fixed on the main shaft in the circumferential direction, a reverse bevel gear is arranged on one side of the shifting gear, an output bevel gear is arranged on the other side of the shifting gear, the reverse bevel gear and the output bevel gear are respectively provided with combined teeth connected with the shifting gear, a bridging bevel gear is positioned between the reverse bevel gear and the output bevel gear and is respectively meshed with the reverse bevel gear and the output bevel gear, the reverse bevel gear is in sliding fit on the main shaft, the output bevel gear is supported on the box body through the bearing, the output bevel gear is provided with a hollow shaft section extending in the axial direction, one end of the hollow shaft section extends out of the box body, an output chain wheel is fixed on the extending end in the circumferential direction, one end of the main shaft is supported in a shaft hole of the, the gear shifting device is characterized in that a sliding shifting fork is mounted on the gear shifting shaft, a fork head of the sliding shifting fork is clamped in an annular groove of the gear shifting gear, a fork tail of the sliding shifting fork is sleeved on the gear shifting shaft, a cam groove is formed in the fork tail of the sliding shifting fork, a shifting pin driven by the gear shifting shaft is inserted into the cam groove and used for driving the sliding shifting fork to move axially along the gear shifting shaft, and one end of the gear shifting shaft extends out of the box body and is fixedly connected with a gear shifting pedal in the circumferential direction. When the three-wheel motorcycle works, the output shaft of the engine of the three-wheel motorcycle drives the main shaft to rotate, the main shaft can drive the gear shifting gear to rotate together, and the gear shifting gear is shifted by the sliding shifting fork to axially move on the main shaft and is meshed with the output bevel gear or the reverse bevel gear. When the combination teeth of the gear shifting gear are meshed with the combination teeth of the output bevel gear, the reverse gear is in forward gear, the gear shifting gear can directly drive the output bevel gear to rotate, the output bevel gear can drive the output chain wheel to rotate, and the rear wheel of the side motor tricycle is driven to rotate through the chain, so that the motorcycle can advance. When the combination teeth of the gear shifting gear are meshed with the reverse bevel gear, the gear shifting gear can drive the reverse bevel gear to rotate, power is transmitted through the bridge bevel gear to drive the output bevel gear to rotate reversely, and therefore the rear wheel of the motorcycle is driven to rotate reversely through the chain wheel, and reverse gear of the motorcycle is achieved. The reverse gear device is provided with a forward gear and a reverse gear, and the power transmission of the forward gear and the reverse gear is stable and reliable, so that the forward and the reverse of the side motor tricycle are realized. The three-wheel motorcycle with the front wheel can bring convenience for the backing of the three-wheel motorcycle, the driving of the three-wheel motorcycle is simpler and more labor-saving, the position control of the backing is also convenient, the direction control of the backing is also easy, and great convenience is provided for a driver. Meanwhile, the reverse gear device outputs power through the output chain wheel, chain transmission driving of the side three-wheeled motorcycle is achieved, transmission efficiency of chain transmission is high, environmental adaptability is good, and service life is long. In addition, the overload capacity of the chain transmission is good, and the safety performance of motorcycle driving is improved. When shifting gears, the shifting pedals are stepped by feet, so that the shifting pedals drive the shifting shaft to rotate, and the shifting shaft can drive the shifting pin to rotate together. Because the shifting pin is inserted in the cam groove of the sliding shifting fork, and the fork head of the sliding shifting fork is positioned in the annular groove of the shifting gear, the circumferential rotation of the sliding shifting fork is limited, so the rotating shifting pin can slide in the cam groove to force the sliding shifting fork to slide along the axial direction of the shifting shaft, the shifting gear is driven by the sliding shifting fork, the meshing of the shifting gear and the output bevel gear or the reverse bevel gear is realized, and the shifting is stable and reliable.
A shifting sleeve is circumferentially fixed on the upper shaft of the gear shifting shaft, a shifting pin is fixedly installed on the shifting sleeve through sliding fit of the shifting sleeve and the fork tail of the sliding shifting fork, and the shifting pin is inserted into a cam groove of the fork tail of the sliding shifting fork. The fork tail of the sliding shifting fork is in a shaft sleeve shape, and the shifting sleeve is positioned between the shaft sleeve fork tail of the sliding shifting fork and the gear shifting shaft, so that the axial sliding of the sliding shifting fork is ensured, and the mechanical strength of the gear shifting shaft is also increased. The shifting sleeve is axially limited through a limiting sleeve sleeved on the gear shifting shaft, and the limiting sleeve is abutted between the shifting sleeve and the box body, so that the axial movement of the shifting sleeve is prevented.
A gear locking sleeve is circumferentially fixed on the gear shifting shaft, a gear groove is formed in the circumference of the gear locking sleeve, a spring ejector pin is installed on the box body, and a wedge-shaped pin head arranged on the spring ejector pin corresponds to the gear groove. The positioning of the gears can be realized through the action of the gear locking sleeve and the spring ejector pin, and the gear disengagement condition is avoided. The tail end of the spring ejector pin is provided with an axial blind hole, a compression spring is inserted into the axial blind hole and abuts against the compression spring through a bolt to form limiting, and a space is reserved between the spring ejector pin and the bolt. When the gear shifting shaft rotates to drive the gear shifting gear to be meshed with the output bevel gear or the reverse bevel gear, the gear shifting shaft can drive the gear locking sleeve to rotate at the same time. When the reverse gear is shifted to advance the gear, the spring ejector pin can firstly receive pressure to enable the compression spring to contract to realize that the spring ejector pin automatically lets the gear shift out of the gear shift groove of the reverse gear, the spring ejector pin disappears when the gear shift is successful, the spring ejector pin is not stressed any more, the spring ejector pin can be automatically inserted into the forward gear shift groove of the gear locking sleeve under the action of the compression spring, and the forward gear is positioned. When the forward gear is replaced to the reverse gear, the spring ejector pin can move from the forward gear groove of the gear locking sleeve to the reverse gear groove to realize the positioning of the reverse gear. Therefore, the accuracy of gear shifting is improved, and the reliability of gear shifting is improved. The axial blind hole of the spring ejector pin can position the compression spring, the total length of the spring ejector pin, the compression spring and the bolt is shortened under the condition that the normal compression amount of the compression spring is guaranteed, and convenience is brought to installation.
The anti-misoperation mechanism is arranged on the outer wall of the box body and comprises a mounting seat and a limiting pin, the mounting seat is provided with two supports, the limiting pin is supported on the two supports in a sliding fit mode, a return spring is sleeved on a shaft section of the limiting pin between the two supports, one end of the return spring abuts against one support, the other end of the return spring is limited through a clamp spring, one end of the limiting pin extends to the position below the gear shifting pedal and is used for limiting gear shifting pedal misoperation, and the other end of the limiting pin is used for fixedly connecting a control cable which is operated by a handle on the side motor tricycle. The anti-misoperation mechanism provides guarantee for the driving of the motor tricycle and improves the driving safety performance of the motor tricycle. When shifting gears, a driver pulls the control cable through the handle, so that the control cable pulls the limiting pin to contract to get out of the position below the gear shifting pedal, and then the pedal is stepped by a foot to replace the gear. The gear replacement is completed by loosening the handle, the limiting pin can return to extend to the position below the gear shifting pedal under the action of the return spring to limit the rotation of the gear shifting pedal, the misoperation in the driving process is avoided, and convenience is brought to driving.
A box cover is arranged on one side of the box body, a hollow shaft section of the output bevel gear extends outwards from a bearing hole formed in the box cover, and an axially extending mounting column is arranged on the box cover. During the installation, install the derailleur on the engine through the screw-thread fit of screw hole on bolt and the erection column, the erection column has not only played the effect of connecting, and it still has the effect of supporting, has guaranteed to have enough space of installation output sprocket between derailleur box and the engine box, provides convenience for the installation.
The extension direction of the long axis of the cam groove is oblique to the axial direction of the tail of the sliding shifting fork. The shifting pin can be guaranteed to drive the sliding shifting fork to move axially, and the shifting pin can slide in the cam groove more conveniently.
One end of the output chain wheel is limited by a bushing sleeved on a hollow shaft section of the output bevel gear, the other end of the output chain wheel is limited by a nut which is arranged on an external thread section arranged on the hollow shaft section and is in threaded fit with the hollow shaft section, and the output chain wheel is well limited in axial direction.
And one end of the main shaft, which is positioned in the shaft hole of the hollow shaft section of the output bevel gear, is in splined connection with an internal spline sleeve, and the internal spline sleeve is used for being in splined connection with an output shaft of an engine. The output shaft of the engine is inserted into the shaft hole of the hollow shaft section of the output bevel gear, and the internal spline of the internal spline sleeve is matched with the output shaft of the engine, so that the output shaft of the engine drives the main shaft, and the power input of the reverse gear is realized. The internal spline housing not only realizes the power transmission between the main shaft and the output shaft of the engine, but also is simple and convenient to install.
The reverse gear device of the side three-wheeled motorcycle has the advantages of stable structure and reliable work, realizes reverse gear of the side three-wheeled motorcycle, and brings great convenience for driving of the side three-wheeled motorcycle. In addition, the motorcycle is driven by the chain, so that the overload capacity and the adaptability are increased, and the safety performance of motorcycle driving is improved.
The invention is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the anti-misoperation mechanism of the present invention;
FIG. 3 is a schematic view of a shift fork;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic structural view of the gear locking sleeve matched with the gear shifting shaft and the top pin;
fig. 6 is a schematic structural view of a mounting post of the cover.
Detailed Description
Referring to fig. 1 to 6, a reverse gear device of a side motor tricycle comprises a box body 1, a main shaft 7 is supported in a cavity of the box body 1 through a bearing, and a shifting gear 10 which can move axially is circumferentially fixed on the main shaft 7 through a spline. And one side of the gear shifting gear 10 is provided with a reverse bevel gear 11, the other side of the gear shifting gear is provided with an output bevel gear 8, and the reverse bevel gear 11 and the output bevel gear 8 are respectively provided with combined teeth engaged with the gear shifting gear 10. And the intermediate bevel gear 9 is positioned between the reverse bevel gear 11 and the output bevel gear 8 and is respectively meshed with the reverse bevel gear 11 and the output bevel gear 8. The intermediate bevel gear 9 is supported on the case 1 through a bearing, and the case 1 is provided with a hole for conveniently installing the intermediate bevel gear 9 for inserting the intermediate bevel gear 9, and the hole is covered by a cover plate. The reverse bevel gear 11 is sleeved on the main shaft 7 in a sliding fit manner with the main shaft 7, the output bevel gear 8 is supported on the box body 1 through a bearing, and the output bevel gear 8 is provided with a hollow shaft section 8-1 extending axially. One end of the hollow shaft section 8-1 extends out of the box body 1, an output chain wheel 3 is circumferentially fixed on the extending end, and one end of the main shaft 7 is supported in a shaft hole of the hollow shaft section 8-1 through a bearing and is used for connecting an engine output shaft 28. One end of the output chain wheel 3 is limited by a bushing 5 sleeved on a hollow shaft section 8-1 of the output bevel gear 8, the other end of the output chain wheel is limited by a nut 2 which is arranged on an external thread section of the hollow shaft section 8-1 and is in threaded fit with the external thread section, and the output chain wheel 3 is well limited in the axial direction. One end of the main shaft 7, which is positioned in a shaft hole of the hollow shaft section 8-1 of the output bevel gear 8, is in splined connection with an internal spline housing 4, and the internal spline housing 4 is used for being in splined connection with an engine output shaft 28. The engine output shaft 28 is inserted into the shaft hole of the hollow shaft section 8-1 of the output bevel gear 8 and supported by a bearing, and the insertion end of the engine output shaft 28 is matched with the internal spline of the internal spline sleeve 4 through the external spline, so that the engine output shaft 28 drives the main shaft 7, and the input of the power of the reverse gear is realized. Oil seals are arranged between the engine output shaft 28 and the hollow shaft section 8-1 and between the main shaft 7 and the hollow shaft section 8-1. The internally splined sleeve 4 not only enables power transmission between the main shaft 7 and the engine output shaft 28, but also is simple and convenient to install. A box cover 6 is arranged on one side of the box body 1, a hollow shaft section 8-1 of the output bevel gear 8 extends outwards from a bearing hole arranged on the box cover 6, and an axially extending mounting column 26 is arranged on the box cover 6. Set up the oil blanket between bush 5 and the case lid 6, during the installation, install the derailleur on the engine through the screw-thread fit of screw hole on bolt and the erection column 26, the erection column 26 has not only played the effect of connecting, and it has the effect of supporting still, has guaranteed to have enough space of installation output sprocket 3 between derailleur box 1 and the engine box, has provided convenience for the installation.
And the box body 1 is provided with a shift shaft 15 parallel to the main shaft 7, a sliding fork 13 is arranged on the shift shaft 15, and a fork head 13-2 of the sliding fork 13 is clamped in the annular groove 10-1 of the shift gear 10. The fork tail 13-1 of the sliding shifting fork 13 is sleeved on the shifting shaft 15, the fork tail 13-1 of the sliding shifting fork 13 is provided with a cam groove 13-3, and a shifting pin 17 driven by the shifting shaft 15 is inserted into the cam groove 13-3 and used for driving the sliding shifting fork 13 to axially move along the shifting shaft 15. The shift shaft 15 is axially positioned and is circumferentially fixed with a shifting sleeve 18 through splines, the shifting sleeve 18 is in sliding fit with a fork tail 13-1 of the sliding shifting fork 13, and a shifting pin 17 is fixedly arranged on the shifting sleeve 18. One end of the toggle pin 17 is fixed with a threaded hole arranged on the toggle sleeve 18 in a threaded fit manner, and the other end is inserted into a cam groove 13-3 of a fork tail 13-1 of the sliding shift fork 13. The fork tail 13-1 of the sliding shifting fork 13 is in a shaft sleeve shape, and the shifting sleeve 18 is positioned between the fork tail 13-1 of the sliding shifting fork 13 and the gear shifting shaft 15, so that the axial sliding of the sliding shifting fork 13 is ensured, and the mechanical strength of the gear shifting shaft 15 is also increased. One end of the gear shifting shaft 15 extends out of the box body 1 and is circumferentially and fixedly connected with a gear shifting pedal 14, an oil seal is arranged between the gear shifting shaft 15 and the box body 1, and the gear shifting pedal 14 comprises a forward gear pedal and a reverse gear pedal which are symmetrically arranged. The extending direction of the long axis of the cam groove 13-3 is oblique to the axial direction of the fork tail of the sliding shifting fork 13, so that the shifting pin 18 can be ensured to drive the sliding shifting fork 13 to move axially, and the sliding of the shifting pin 17 in the cam groove 13-3 is facilitated. The toggle sleeve 18 is axially limited by a limiting sleeve 16 sleeved on the gear shifting shaft 15, and the limiting sleeve 16 is abutted between the toggle sleeve 18 and the box body 1, so that the axial movement of the toggle sleeve 18 is prevented. A gear locking sleeve 19 is circumferentially fixed on the gear shifting shaft 15 through a spline, a gear groove 19-1 is formed in the circumference of the gear locking sleeve 19, a spring ejector pin 20 is installed on the box body 1, and a wedge-shaped pin head 20-1 arranged on the spring ejector pin 20 corresponds to the gear groove 19-1. The gear locking can be realized through the action of the gear locking sleeve 19-1 and the spring ejector pin 20, and the gear disengagement condition is avoided. The tail end of the spring ejector pin 20 is provided with an axial blind hole, a compression spring 21 is inserted into the axial blind hole and abuts against the compression spring 21 through a bolt 12 to form limiting, and the bolt 12 is also provided with an axial blind hole for the compression spring 21 to insert into. The spring top pin 20 is spaced from the bolt 12 by a distance allowing the compression spring 21 to elastically expand and contract. The axial blind holes of the spring ejector pin 20 and the bolt 12 can position the compression spring 21, and the total length of the spring ejector pin 20, the compression spring 21 and the bolt 12 is shortened under the condition that the normal compression amount of the compression spring 21 is ensured, so that convenience is provided for installation, and the bolt 12 is in threaded fit connection with the box body 1. When the gear shift shaft 15 rotates to drive the gear shift gear 10 to mesh with the output bevel gear 8 or the reverse bevel gear 11, the gear shift shaft 15 also drives the gear locking sleeve 19 to rotate. When the reverse gear is shifted and the forward gear is shifted, the spring ejector pin 20 is firstly compressed by the pressure to enable the compression spring 21 to contract so as to realize the automatic abdicating of the wedge-shaped pin head 20-1 of the spring ejector pin 20 and move out of the gear groove 19-1 of the reverse gear, when the gear shifting is successful, the pressure disappears, and then the spring ejector pin 20 is not compressed, and the wedge-shaped pin head 20-1 is automatically inserted into the forward gear groove 19-1 of the gear locking sleeve 19 under the action of the compression spring 21 so as to realize the locking of the forward gear. When the forward gear is changed to the reverse gear, the ejector pin 20 moves from the forward gear groove 19-1 of the gear locking sleeve 19 to the gear groove 19-1 of the reverse gear to realize the locking of the reverse gear. Therefore, the accuracy of gear shifting is improved, and the reliability of gear shifting is improved. The outer wall of the box body 1 is provided with an anti-misoperation mechanism, the anti-misoperation mechanism comprises a mounting seat 24 and a limiting pin 23, the mounting seat 24 is provided with two supports 24-1, the limiting pin 23 is supported on the two supports 24-1 in a sliding fit manner, a return spring 25 is sleeved on a shaft section of the limiting pin 23 between the two supports 24-1, one end of the return spring 25 is abutted against one support, the other end of the return spring is limited by a clamp spring 22, one end of the limiting pin 23 extends to the lower part of the gear shifting pedal 14 and is used for limiting the misoperation of the gear shifting pedal 14, and the other end of the limiting pin 23 is fixedly connected with a control cable 27 controlled by a handle. The anti-misoperation mechanism provides guarantee for the driving of the motor tricycle and improves the driving safety performance of the motor tricycle. When the gear is shifted, a driver pulls the control cable 27 through a handle of the side motor tricycle, so that the control cable 27 pulls the limiting pin 23 to contract to get out of the position below the gear shifting pedal 14, and then the gear shifting pedal 14 is stepped by a foot to replace the gear. After the gear is changed, the release handle is changed, the limit pin 23 can return to extend to the lower part of the gear shifting pedal 14 under the action of the return spring 25 to limit the rotation of the gear shifting pedal 14, the misoperation in the driving process is avoided, and the convenience is provided for driving.
When the three-wheel motorcycle is in work, the engine output shaft 28 of the three-wheel motorcycle drives the main shaft 7 to rotate, the main shaft 7 can drive the gear shifting gear 10 to rotate together, and the gear shifting gear 10 is shifted by the sliding shifting fork 13 to axially move on the main shaft 7 and is meshed with the output bevel gear 8 or the reverse bevel gear 11. When the combination teeth of the gear shifting gear 10 are meshed with the combination teeth of the output bevel gear 8, the reverse gear is in forward gear, the gear shifting gear 10 can directly drive the output bevel gear 8 to rotate, the output bevel gear 8 can drive the output chain wheel 3 to rotate, and the rear wheel of the side motor tricycle is driven to rotate through the chain, so that the side motor tricycle can move forward. When the combination teeth of the gear shifting gear 10 are meshed with the reverse bevel gear 11, the gear shifting gear 10 can drive the reverse bevel gear 11 to rotate, power is transmitted through the bridge bevel gear 9 and then drives the output bevel gear 8 to rotate reversely, and therefore the rear wheel of the motorcycle is driven to rotate reversely through the chain wheel, and reverse gear of the side motor tricycle is achieved. The reverse gear device is provided with a forward gear and a reverse gear, and the power transmission of the forward gear and the reverse gear is stable and reliable, so that the forward and the reverse of the side motor tricycle are realized. The three-wheel motorcycle with the front wheel can bring convenience for the backing of the three-wheel motorcycle, the driving of the three-wheel motorcycle is simpler and more labor-saving, the position control of the backing is also convenient, the direction control of the backing is also easy, and great convenience is provided for a driver. Meanwhile, the reverse gear device outputs power through the output chain wheel 3, chain transmission driving of the side three-wheeled motorcycle is achieved, transmission efficiency of chain transmission is high, environmental adaptability is good, and service life is long. In addition, the overload capacity of the chain transmission is good, and the safety performance of motorcycle driving is improved. During gear shifting, the gear shifting pedal 14 is trodden by foot, so that the gear shifting pedal 14 drives the gear shifting shaft 15 to rotate, and the gear shifting shaft 15 drives the shifting pin 17 to rotate together. Because the shifting pin 17 is inserted into the cam groove 13-3 of the sliding fork 13, and the fork head 13-2 of the sliding fork 13 is located in the annular groove 10-1 of the shifting gear 10, the circumferential rotation of the sliding fork 13 is limited, the rotating shifting pin 17 can slide in the cam groove 13-3 to force the sliding fork 13 to slide axially along the shifting shaft 15, so that the shifting gear 10 is driven by the sliding fork 13, the shifting gear 10 is meshed with the output bevel gear 8 or the reverse bevel gear 11, and the shifting is stable and reliable.

Claims (10)

1. The utility model provides a side motor tricycle's reverse gear ware which characterized in that: comprises a box body (1), a main shaft (7) is supported in the cavity of the box body (1) through a bearing, a gear shifting gear (10) which can move axially is fixed on the main shaft (7) in the circumferential direction, a reverse bevel gear (11) is arranged on one side of the gear shifting gear (10), an output bevel gear (8) is arranged on the other side of the gear shifting gear (10), the reverse bevel gear (11) and the output bevel gear (8) are respectively provided with a combination tooth which is jointed with the gear shifting gear (10), a bridge bevel gear (9) is positioned between the reverse bevel gear (11) and the output bevel gear (8) and is respectively meshed with the reverse bevel gear (11) and the output bevel gear (8), the reverse bevel gear (11) is in sliding fit on the main shaft (7), the output bevel gear (8) is supported on the box body (1) through a bearing, the output bevel gear (8) is, one end of the hollow shaft section (8-1) extends out of the box body (1), an output chain wheel (3) is circumferentially fixed on the extending end, one end of the main shaft (7) is supported in a shaft hole of the hollow shaft section (8-1) through a bearing and is used for connecting an engine output shaft (28), the box body (1) is provided with a gear shifting shaft (15) parallel to the main shaft (7), the gear shifting shaft (15) is provided with a sliding shifting fork (13), a fork head (13-2) of the sliding shifting fork (13) is clamped in a ring-shaped groove (10-1) of a gear shifting gear (10), a fork tail (13-1) of the sliding shifting fork (13) is sleeved on the gear shifting shaft (15), a gear shifting tail (13-1) of the sliding shifting fork (13) is provided with a cam groove (13-3), a shifting pin (17) driven by the shaft (15) is inserted into the cam groove (13-3), the gear shifting device is used for driving the sliding shifting fork (13) to axially move along the gear shifting shaft (15), and one end of the gear shifting shaft (15) extends out of the box body (1) and is circumferentially and fixedly connected with a gear shifting pedal (14).
2. A side motor tricycle reverse drive as claimed in claim 1 wherein: a shifting sleeve (18) is circumferentially fixed on the shifting shaft (15) in an axis positioning manner, and is in sliding fit with a fork tail (13-1) of the sliding shifting fork (13) through the shifting sleeve (18), a shifting pin (17) is fixedly installed on the shifting sleeve (18), and the shifting pin (17) is inserted into a cam groove (13-3) of the fork tail (13-1) of the sliding shifting fork (13).
3. A side motor tricycle reverse as claimed in claim 2 wherein: the toggle sleeve (18) is axially limited by a limiting sleeve (16) sleeved on the gear shifting shaft (15).
4. A side motor tricycle reverse drive as claimed in claim 1 wherein: a gear locking sleeve (19) is circumferentially fixed on the gear shifting shaft (15), a gear groove (19-1) is formed in the circumference of the gear locking sleeve (19), a spring ejector pin (20) is installed on the box body (1), and a wedge-shaped pin head (20-1) arranged on the spring ejector pin (20) corresponds to the gear groove (19-1).
5. A side motor tricycle reverse drive as claimed in claim 4 wherein: the tail end of the spring ejector pin (20) is provided with an axial blind hole, a compression spring (21) is inserted into the axial blind hole and abuts against the compression spring (21) through a bolt (12) to form limiting, and a space is reserved between the spring ejector pin (20) and the bolt (12).
6. A side motor tricycle reverse drive as claimed in claim 1 wherein: the anti-misoperation mechanism is arranged on the outer wall of the box body (1), and comprises a mounting seat (24) and a limiting pin (23), wherein the mounting seat (24) is provided with two supports (24-1), the limiting pin (23) is supported on the two supports (24-1) in a sliding fit manner, a return spring (25) is sleeved on a shaft section between the two supports (24-1) of the limiting pin (23), one end of the return spring (25) abuts against one support, the other end of the return spring is limited by a clamp spring (22), one end of the limiting pin (23) extends to the lower part of the gear shifting pedal (14) and is used for limiting the misoperation of the gear shifting pedal (14), and the other end of the limiting pin (23) is used for fixedly connecting a control cable (27) controlled by a handle.
7. A side motor tricycle reverse drive as claimed in claim 1 wherein: a box cover (6) is arranged on one side of the box body (1), a hollow shaft section (8-1) of the output bevel gear (8) extends outwards from a bearing hole formed in the box cover (6), and an axially extending mounting column (26) is arranged on the box cover (6).
8. A side motor tricycle reverse drive as claimed in claim 1 wherein: the extending direction of the long axis of the cam groove (13-3) is oblique to the axial direction of the fork tail of the sliding shifting fork (13).
9. A side motor tricycle reverse drive as claimed in claim 1 wherein: one end of the output chain wheel (3) is limited by a bushing (5) sleeved on a hollow shaft section (8-1) of the output bevel gear (8), and the other end of the output chain wheel is limited by a nut (2) which is arranged on the hollow shaft section (8-1) and is in threaded fit with an external thread section.
10. A side motor tricycle reverse drive as claimed in claim 1 wherein: one end of the main shaft (7) located in the shaft hole of the hollow shaft section (8-1) of the output bevel gear (8) is in splined connection with an internal spline sleeve (4), and the internal spline sleeve (4) is used for being in splined connection with an engine output shaft (28).
CN202010242662.5A 2020-03-31 2020-03-31 Reverse gear device of side motor tricycle Pending CN111288151A (en)

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Application Number Priority Date Filing Date Title
CN202010242662.5A CN111288151A (en) 2020-03-31 2020-03-31 Reverse gear device of side motor tricycle

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Application Number Priority Date Filing Date Title
CN202010242662.5A CN111288151A (en) 2020-03-31 2020-03-31 Reverse gear device of side motor tricycle

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001165310A (en) * 1999-12-06 2001-06-22 Aisin Ai Co Ltd Equipment preventing reverse shift gear noise
CN207034103U (en) * 2017-07-07 2018-02-23 重庆富瑞机械制造有限公司 The preposition force adding direction reverser of motor tricycle
CN208749985U (en) * 2018-08-10 2019-04-16 重庆富瑞动力机械有限公司 Motor tricycle reverse gear assembly
CN212429696U (en) * 2020-03-31 2021-01-29 重庆富瑞动力机械有限公司 Reverse gear device of side motor tricycle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001165310A (en) * 1999-12-06 2001-06-22 Aisin Ai Co Ltd Equipment preventing reverse shift gear noise
CN207034103U (en) * 2017-07-07 2018-02-23 重庆富瑞机械制造有限公司 The preposition force adding direction reverser of motor tricycle
CN208749985U (en) * 2018-08-10 2019-04-16 重庆富瑞动力机械有限公司 Motor tricycle reverse gear assembly
CN212429696U (en) * 2020-03-31 2021-01-29 重庆富瑞动力机械有限公司 Reverse gear device of side motor tricycle

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