CN213064590U

CN213064590U - Boosting reverse gear device of motor tricycle

Info

Publication number: CN213064590U
Application number: CN202021366721.1U
Authority: CN
Inventors: 梁道明
Original assignee: Chongqing Dongba Technology Co ltd
Current assignee: Chongqing Dongba Technology Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-27
Anticipated expiration: 2030-07-13

Abstract

A boosting reverse gear of a three-wheeled motorcycle comprises a box body of the reverse gear, a main shaft is supported in the box body, a reverse gear and a forward gear are sleeved on the main shaft in an empty way, a gear shifting sleeve is matched with a spline of the main shaft and can move axially to be connected with the reverse gear or the forward gear, the gear shifting sleeve is driven by a gear shifting fork, the gear shifting fork is arranged on a rotating shaft of the gear shifting fork, an input bevel gear is supported on the box body to be meshed with the reverse gear and the forward gear, a boosting transmission shaft is supported in the box body and is provided with a boosting driven gear and a boosting output driving gear, the boosting driven gear is meshed with the gear shifting sleeve, an output shaft is supported in the box body and extends outwards, one end of the output shaft in the box body is matched with the main shaft to form a concentric shaft, the boosting output driven gear is sleeved on the output shaft in an empty, and can axially move to be separated from the main shaft to be jointed with the boosting output driven gear, and the boosting joint gear sleeve is driven by the boosting shifting fork.

Description

Boosting reverse gear device of motor tricycle

Technical Field

The utility model relates to a motor tricycle field, in particular to motor tricycle's afterburning reverse gear ware.

Background

The reverse gear of the motor tricycle is generally installed between an output shaft of an engine and a transmission shaft, the forward gear or reverse gear conversion is realized through the reverse gear, the power of the engine is transmitted to the transmission shaft, and the rear wheel is driven to rotate through the transmission shaft so as to realize the running of the motor tricycle. At present, a reverse gear device of a motor tricycle generally comprises a forward gear, a reverse gear and a gear shifting sleeve, wherein the forward gear and the reverse gear are both sleeved on a main shaft and are both meshed with an input bevel gear, the input bevel gear connected with an engine drives the main shaft to rotate, the gear shifting sleeve moves axially on the main shaft and is connected with the forward gear or the reverse gear so as to drive the main shaft to rotate, and a transmission shaft is directly driven to rotate by the output power of the main shaft. The reverse gear generally has the problem of insufficient power when in heavy load, particularly under the condition of heavy load climbing, the power can be obviously insufficient, the driving experience is poor, the oil consumption is improved, the cost is increased, the loss of parts of the motor tricycle is accelerated, and the service life is shortened.

Disclosure of Invention

The utility model aims at prior art not enough, provide a motor tricycle's afterburning reverse gear ware, its multiplicable motor tricycle's of afterburning transmission shaft power through setting up can make the motorcycle realize the low-speed gear afterburning and stabilize and go especially when heavy load or climbing, and the experience of driving feels better, has also reduced oil consumption, practice thrift the cost.

The technical scheme of the utility model is that: a boosting reverse gear of a motor tricycle comprises a box body of the reverse gear, a main shaft is supported in the box body through a bearing, a reverse gear and a forward gear are sleeved on the main shaft in an empty mode, a gear shifting sleeve is arranged between the reverse gear and the forward gear and matched with a spline of the main shaft and can move axially to be connected with the reverse gear or the forward gear, the gear shifting sleeve is driven by a gear shifting fork, the gear shifting fork is arranged on a rotating shaft of the gear shifting fork, an input bevel gear is supported on the box body through the bearing, the input bevel gear is respectively meshed with the reverse gear and the forward gear, a boosting transmission shaft parallel to the main shaft is supported in the box body through the bearing, a boosting driven gear and a boosting output driving gear are arranged on the boosting transmission shaft, the boosting driven gear is meshed with the gear shifting sleeve, an output shaft is supported on the box body through the bearing and extends outwards, the output shaft is positioned at one end in the box body and matched with the main shaft through a bearing to form a concentric shaft, a force application output driven gear is sleeved on the output shaft in an empty mode and meshed with the force application output driving gear, a force application joint gear sleeve is in spline fit with the main shaft and the output shaft and can axially move to be separated from the main shaft and be jointed with the force application output driven gear, and the force application joint gear sleeve is driven by a force application shifting fork.

The box body is matched with an axial sliding stress application shifting fork shaft in a sliding mode, the stress application shifting fork shaft and a shifting fork rotating shaft are vertically staggered, a fork tail of the stress application shifting fork is fixed on the stress application shifting fork shaft, one end of the stress application shifting fork shaft extends out of the box body, a clamping groove is formed in the extending end of the stress application shifting fork shaft, a stress application pedal is sleeved on the extending end of the shifting fork rotating shaft in a hollow mode, the stress application pedal is provided with a downward extending shifting arm, and the free end of the shifting arm is clamped in the clamping groove of the stress application shifting fork shaft and used for shifting the stress application shifting fork shaft to move axially.

Two arc-shaped locking grooves are axially arranged on the stressing shifting fork shaft, a positioning steel ball is arranged on the box body and corresponds to the locking grooves, the positioning steel ball is installed in a hole formed in the box body, and the stressing shifting fork shaft is locked by the force storage of a spring and the tight abutting of the locking grooves.

The shifting fork rotating shaft is supported on the box body, one end of the shifting fork rotating shaft extends out of the box body, and a shifting pedal is circumferentially fixed on the extending end of the shifting fork rotating shaft.

One side of the tail of the shifting fork is provided with a forward gear locking groove and a reverse gear locking groove, a gear locking pin is mounted on the box body, the head end of the gear locking pin corresponds to the locking groove of the shifting fork, and a compression spring is arranged between the gear locking pin and the box body.

The diameter of the gear shifting gear sleeve is smaller than that of the boosting driven gear, and the diameter of the boosting output driving gear is smaller than that of the boosting output driven gear.

The middle section of the gear shifting gear sleeve is provided with a boosting driving tooth, the boosting driving tooth is meshed with a boosting driven gear, the outer circumference of the middle part of the boosting driving tooth is provided with an annular groove, the gear shifting fork is matched in the annular groove of the gear shifting gear sleeve, and the two sides of the gear shifting gear sleeve, which are positioned on the boosting driving tooth, are respectively provided with joint teeth which are jointed with a reverse gear and a forward gear.

The output shaft is arranged in the box body, one end of the output shaft is provided with a shaft hole, the shaft end of the main shaft is provided with a shaft neck, and the shaft neck is inserted into the shaft hole of the output shaft and is in sliding fit with the output shaft through a bearing.

The bearing comprises a sliding bearing and a rolling bearing, the shaft hole of the output shaft is a stepped hole, the sliding bearing is located in the small-diameter section of the stepped hole, and the rolling bearing is located in the large-diameter section of the stepped hole and is axially limited.

The boosting transmission shaft and the boosting output driving gear are of an integrated structure, and the boosting driven gear is circumferentially fixed on the boosting transmission shaft through a spline.

Adopt above-mentioned technical scheme: a boosting reverse gear of a motor tricycle comprises a box body of the reverse gear, a main shaft is supported in the box body through a bearing, a reverse gear and a forward gear are sleeved on the main shaft in an empty mode, a gear shifting sleeve is arranged between the reverse gear and the forward gear and matched with a spline of the main shaft and can move axially to be connected with the reverse gear or the forward gear, the gear shifting sleeve is driven by a gear shifting fork, the gear shifting fork is arranged on a rotating shaft of the gear shifting fork, an input bevel gear is supported on the box body through the bearing, the input bevel gear is respectively meshed with the reverse gear and the forward gear, a boosting transmission shaft parallel to the main shaft is supported in the box body through the bearing, a boosting driven gear and a boosting output driving gear are arranged on the boosting transmission shaft, the boosting driven gear is meshed with the gear shifting sleeve, an output shaft is supported on the box body through the bearing and extends outwards, the output shaft is positioned at one end in the box body and matched with the main shaft through a bearing to form a concentric shaft, a force application output driven gear is sleeved on the output shaft in an empty mode and meshed with the force application output driving gear, a force application joint gear sleeve is in spline fit with the main shaft and the output shaft and can axially move to be separated from the main shaft and be jointed with the force application output driven gear, and the force application joint gear sleeve is driven by a force application shifting fork. The boosting reverse gear device has stable and reliable transmission, and the forward gear or the reverse gear of the boosting reverse gear device has two modes of a fast gear and a slow gear, so that sufficient driving power of the motor tricycle can be ensured. When the gear shifting gear sleeve is connected with the forward gear or the reverse gear, the gear shifting gear sleeve drives the main shaft to rotate, if the stress application joint gear sleeve is in a normal state of being simultaneously in spline fit with the main shaft and the output shaft, the power path of the reverse gear device is that the main shaft drives the output shaft to rotate through the stress application joint gear sleeve, the output shaft is connected with a transmission shaft of the motor tricycle to output power to drive the rear wheel of the motor tricycle to rotate, and therefore the quick gear driving of the motor tricycle is achieved; if the boosting shifting fork drives the boosting joint gear sleeve to axially move to be disengaged from the spline fit between the boosting joint gear sleeve and the main shaft and is connected with the boosting output driven gear, the power line of the reverse gear is that the gear shifting gear sleeve drives the boosting driven gear to rotate, the boosting driven gear drives the boosting output driving gear to rotate through the boosting transmission shaft, the boosting output driven gear meshed with the boosting output driving gear drives the boosting joint gear sleeve to rotate, and finally the output shaft is driven to rotate to drive the rear wheel of the motorcycle to rotate, so that the slow-speed gear running of the motor tricycle is realized. The fast gear can meet the running requirement of the motor tricycle under the normal condition, and the slow gear can meet the running requirement under the conditions of heavy load and climbing. The reverse gear can realize the afterburning and provide sufficient drive power for motor tricycle during heavy load and climbing, has guaranteed motor tricycle's normal driving, and the experience of driving feels more comfortable. And the use and the gear switching are simple, the oil consumption is reduced, and the cost is saved. The running with sufficient power under the conditions of heavy load and climbing can also slow down the loss of the parts of the motor tricycle, and the service life is prolonged.

The box body is matched with an axial sliding stress application shifting fork shaft in a sliding mode, the stress application shifting fork shaft and a shifting fork rotating shaft are vertically staggered, a fork tail of the stress application shifting fork is fixed on the stress application shifting fork shaft, one end of the stress application shifting fork shaft extends out of the box body, a clamping groove is formed in the extending end of the stress application shifting fork shaft, a stress application pedal is sleeved on the extending end of the shifting fork rotating shaft in a hollow mode, the stress application pedal is provided with a downward extending shifting arm, and the free end of the shifting arm is clamped in the clamping groove of the stress application shifting fork shaft and used for shifting the stress application shifting fork shaft to move axially. The stressing pedal drives the stressing shifting fork shaft to move axially, so that the stressing shifting fork shaft drives the stressing shifting fork to move axially, and the stressing shifting fork drives the stressing joint gear sleeve. The control of the stressing joint gear sleeve is simple, and the stressing pedal drives the stressing shifting fork stably and reliably. Two arc-shaped locking grooves are axially arranged on the stressing shifting fork shaft, a positioning steel ball is arranged on the box body and corresponds to the locking grooves, the positioning steel ball is installed in a hole formed in the box body, and the stressing shifting fork shaft is locked by the force storage of a spring and the tight abutting of the locking grooves. Two locked grooves are respectively a quick gear locking groove and a slow gear locking groove, and the positioning steel ball can be clamped in the locked groove of the stress application shifting fork shaft under the action of the pressure spring, so that the gear disengagement condition during the working of the quick gear and the slow gear can be prevented, and the working stability of the reverse gear is improved.

The shifting fork rotating shaft is supported on the box body, one end of the shifting fork rotating shaft extends out of the box body, and a shifting pedal is circumferentially fixed on the extending end of the shifting fork rotating shaft. The driver can control the shifting fork to drive the shifting gear sleeve to move along the axial direction of the main shaft through the shifting pedal, the use is simple and convenient, and the work is reliable.

One side of the tail of the shifting fork is provided with a forward gear locking groove and a reverse gear locking groove, a gear locking pin is mounted on the box body, the head end of the gear locking pin corresponds to the locking groove of the shifting fork, and a compression spring is arranged between the gear locking pin and the box body. The gear lock pin is clamped in the locking grooves of the forward gear and the reverse gear, so that the gear disengagement condition can be prevented, and the stability of the gears is kept.

The diameter of the gear shifting gear sleeve is smaller than that of the boosting driven gear, the diameter of the boosting output driving gear is smaller than that of the boosting output driven gear, and the low-speed boosting running of the reverse gear can be realized through two-stage speed reduction.

The middle section of the gear shifting gear sleeve is provided with a boosting driving tooth, the boosting driving tooth is meshed with a boosting driven gear, the outer circumference of the middle part of the boosting driving tooth is provided with an annular groove, the gear shifting fork is matched in the annular groove of the gear shifting gear sleeve, and the two sides of the gear shifting gear sleeve, which are positioned on the boosting driving tooth, are respectively provided with joint teeth which are jointed with a reverse gear and a forward gear. During operation, the gear sleeve of shifting is through the joint tooth joint input power of joint tooth and the gear of advancing or reversing gear, and the gear sleeve of shifting is when defeated power to the main shaft through the spline, still passes through afterburning driving tooth and is defeated power to afterburning driven gear, realizes from this that the gear sleeve of shifting is to the drive of fast-speed fender and slow-speed fender, has reduced the part of reversing gear, compact structure, cost are reduced.

The output shaft is arranged in the box body, a shaft hole is formed in one end of the output shaft, a plug-in connector is axially arranged at one end of the main shaft in an extending mode, the plug-in connector is matched in the shaft hole of the output shaft through a bearing, and a sliding sleeve is arranged between the plug-in connector and the output shaft.

The output shaft is arranged in the box body, one end of the output shaft is provided with a shaft hole, the shaft end of the main shaft is provided with a shaft neck, and the shaft neck is inserted into the shaft hole of the output shaft and is in sliding fit with the output shaft through a bearing. The installation between the output shaft and the main shaft is simple, the synchronous rotation of the output shaft and the main shaft under the normal state of the stress application joint gear can be ensured, and the relative rotation between the output shaft and the main shaft when the stress application joint gear sleeve is jointed with the stress application output driven gear can also be ensured. The bearing comprises a sliding bearing and a rolling bearing, the shaft hole of the output shaft is a stepped hole, the sliding bearing is located in the small-diameter section of the stepped hole, and the rolling bearing is located in the large-diameter section of the stepped hole and is axially limited. The sliding bearing can increase the coaxiality of the output shaft and the main shaft and can also reduce the friction generated when the output shaft and the main shaft rotate relatively.

The boosting transmission shaft and the boosting output driving gear are of an integrated structure, and the boosting driven gear is circumferentially fixed on the boosting transmission shaft through a spline. The integrated structure is simple to process, stable in structure and simple to install the stress application driven gear.

The boosting reverse gear device of the motor tricycle is simple to operate, stable and reliable in transmission and good in sealing. It advances to keep off or reverse gear all has fast gear and two kinds of modes of keeping off slowly, and reverse gear ware slow gear can realize the afterburning and provide sufficient drive power for motor tricycle during heavy load and climbing, has guaranteed motor tricycle's normal driving, and the experience of driving feels more comfortable. And the use and the gear switching are simple, the oil consumption is reduced, and the cost is saved. The running with sufficient power under the conditions of heavy load and climbing can also slow down the loss of the parts of the motor tricycle, and the service life is prolonged.

The invention will be further described with reference to the drawings and the specific embodiments.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the engagement of the thrust augmentation fork shaft with the housing;

FIG. 3 is a schematic view of the engagement of the boost pedal, the shift pedal and the shift fork shaft;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of the power-assisted reverse gear device of the motor tricycle during slow gear power-assisted operation.

Detailed Description

Referring to fig. 1 to 5, the boosting reverse gear device of the motor tricycle comprises a box body 1 of the reverse gear device, a main shaft 3 is supported in the box body 1 through a bearing, and a reverse gear 2 and a forward gear 9 are sleeved on the main shaft 3 in an empty mode. A shift sleeve 4 is located between the reverse gear 2 and the forward gear 9 in splined engagement with the main shaft 3 and is axially movable into engagement with the engagement teeth of either the reverse gear 2 or the forward gear 9. The gear shifting sleeve 4 is driven by a gear shifting fork 5, and the gear shifting fork 5 is arranged on a gear shifting fork rotating shaft 8. The gear shifting fork rotating shaft 8 is supported on the box body 1, one end of the gear shifting fork rotating shaft 8 extends out of the box body 1, and a gear shifting pedal 24 is circumferentially fixed on the extending end of the gear shifting fork rotating shaft 8. A driver drives the shifting fork rotating shaft 8 to rotate through the shifting pedal 24 and drives the shifting fork 5 to rotate, and the fork head 5-1 of the shifting fork 5 can drive the shifting gear sleeve 4 to axially move along the main shaft 3, so that the gear shifting device is simple and convenient to use and reliable in work. One side of the tail of the gear shifting fork 5 is provided with a forward gear locking groove 5-2 and a reverse gear locking groove 5-2, a gear locking pin 7 is mounted on the box body 1, the head end of the gear locking pin 7 corresponds to the locking groove 5-2 of the gear shifting fork 5, and a compression spring 6 is arranged between the gear locking pin 7 and the box body 1. The gear lock pin 7 is clamped in the locking groove 5-2 of the forward gear and the reverse gear, so that the gear can be prevented from being disengaged, and the stability of the gears is kept. An input bevel gear 25 is supported by the housing 1 through bearings, and the input bevel gear 25 is engaged with the reverse gear 2 and the forward gear 9, respectively. And a stress application transmission shaft 15 parallel to the main shaft 3 is supported in the box body 1 through a bearing. The boosting transmission shaft 15 is circumferentially fixed with a boosting driven gear 18 through a spline, a boosting output driving gear 16 is integrally arranged on the boosting transmission shaft 15, the integrated structure is simple to process, the structure is stable, and the boosting driven gear is simple to install. The middle section of the gear shifting gear sleeve 4 is provided with a boosting driving gear 4-2, the boosting driving gear 4-2 is meshed with a boosting driven gear 18, the outer circumference of the middle part of the boosting driving gear 4-2 is provided with an annular groove 4-1, a fork head 5-1 of the gear shifting fork 5 is matched in the annular groove 4-1 of the gear shifting gear sleeve 4, and the two sides of the gear shifting gear sleeve 4, which are positioned on the boosting driving gear 4-2, are respectively provided with joint teeth 4-3 which are jointed with the reverse gear 2 and the forward gear 9. When the gear shifting device works, the gear shifting sleeve 4 is connected with the connecting teeth of the forward gear 9 or the reverse gear 2 through the connecting teeth 4-3 to input power, the gear shifting sleeve 4 transmits the power to the main shaft 3 through the spline, and simultaneously transmits the power to the boosting driven gear 18 through the boosting driving teeth 4-2, so that the gear shifting sleeve 4 drives the fast gear and the slow gear, parts of the reverse gear are reduced, the structure is compact, and the cost is reduced. An output shaft 14 is supported by the box body 1 through a bearing and extends outwards, an oil seal 13 is arranged between the output shaft 14 and the box body 1, and the oil seal 13 is mainly used for preventing the oil leakage of the reverse gear at the position, extending outwards, of the output shaft 14, so that the sealing performance of the reverse gear is improved. One end of the output shaft 14, which is positioned in the box body 1, is provided with a shaft hole, the shaft end of the main shaft 3 is provided with a shaft neck 3-1, and the shaft neck 3-1 is inserted into the shaft hole of the output shaft 14 and is in sliding fit with the output shaft 14 through a bearing. The bearing comprises a sliding bearing 12 and a rolling bearing 26, the shaft hole of the output shaft 14 is a stepped hole, the sliding bearing 12 is located in the small-diameter section of the stepped hole, and the rolling bearing 26 is located in the large-diameter section of the stepped hole and is axially limited. A boosting output driven gear 11 is sleeved on the output shaft 14 in an empty mode, and the boosting output driven gear 11 is meshed with a boosting output driving gear 16. The diameter of the gear shifting gear sleeve 4 is smaller than that of the boosting driven gear 18, the diameter of the boosting output driving gear 16 is smaller than that of the boosting output driven gear 11, and the low-speed boosting running of the reverse gear can be realized through two-stage speed reduction. And a force application engagement gear sleeve 10 is in spline fit with the main shaft 3 and the output shaft 14 and can axially move to be separated from the main shaft 3 to be engaged with the force application output driven gear 11, and the force application engagement gear sleeve 10 is driven by a force application shifting fork 17. The connection between the output shaft 14 and the main shaft 3 is simple, so that the synchronous rotation of the output shaft 14 and the main shaft 3 under the normal state of the forced engagement gear sleeve 10 can be ensured, the relative rotation between the output shaft 14 and the main shaft 3 when the forced engagement gear sleeve 10 is engaged with the forced output driven gear 11 can also be ensured, the sliding bearing 12 can increase the coaxiality of the output shaft 14 and the main shaft 3, and can also reduce the friction generated when the output shaft 14 and the main shaft 3 rotate relatively. The box body 1 is matched with an axial sliding stressing shifting fork shaft 19 in a sliding mode, the stressing shifting fork shaft 19 is vertically staggered with a gear shifting fork rotating shaft 8, the fork tail of the stressing shifting fork 17 is fixed on the stressing shifting fork shaft 19, and the fork head of the stressing shifting fork 17 is matched in a shifting fork groove 10-1 formed in the stressing joint gear sleeve 10. One end of the stress application shifting fork shaft 19 extends out of the box body 1, a clamping groove 19-1 is formed in the extending end, a stress application pedal 23 is sleeved on the extending end of the gear shift shifting fork rotating shaft 8 in an empty mode, the stress application pedal 23 is provided with a downward extending shifting arm 23-1, and the free end of the shifting arm 23-1 is clamped in the clamping groove 19-1 of the stress application shifting fork shaft 19 and used for shifting the stress application shifting fork shaft 19 to move axially. The stressing pedal 23 drives the stressing shift fork shaft 19 to move axially, so that the stressing shift fork shaft 19 drives the stressing shift fork 17 to move axially, and the stressing shift fork 17 drives the stressing joint gear sleeve 10. The control of the stressing joint gear sleeve 10 is simple, and the stressing pedal 23 drives the stressing shifting fork 17 stably and reliably. Two arc-shaped locking grooves 19-2 are axially arranged on the boosting declutch shift shaft 19, a positioning steel ball 20 is arranged on the box body 1 and corresponds to the locking grooves 19-2, the positioning steel ball 20 is arranged in a hole formed in the box body 1 and is abutted against the locking grooves 19-2 through the force accumulated by a spring 21 to lock the boosting declutch shift shaft 19, and the spring 21 is pre-tightened and fixed by a screw 22. The two lock grooves 19-2 are respectively a fast gear lock groove and a slow gear lock groove, and the positioning steel ball 20 can be clamped in the lock groove 19-2 of the stress application shifting fork shaft 19 under the action of the spring 21, so that the gear disengagement condition during the work of fast gear and slow gear can be prevented, and the work stability of the reverse gear device is improved.

The boosting reverse gear device is simple to operate and stable and reliable in transmission, and the forward gear or the reverse gear of the boosting reverse gear device has two modes of a fast gear and a slow gear, so that sufficient driving power of the motor tricycle can be guaranteed. When the gear shift sleeve 4 is engaged with the forward gear 9 or the reverse gear 2, the gear shift sleeve 4 drives the main shaft 3 to rotate, the forward gear is the engagement of the gear shift sleeve 4 and the forward gear 9, and the reverse gear is the engagement of the gear shift sleeve 4 and the reverse gear 2. When the gear shifting device works, if the boosting engagement gear sleeve 10 is in a normal state of being simultaneously in spline fit with the main shaft 3 and the output shaft 14, the power path of the gear shifting device works is that the main shaft 3 drives the output shaft 14 to rotate through the boosting engagement gear sleeve 10, and the output shaft 14 is connected with a transmission shaft spline of the motor tricycle to output power to drive a rear wheel of the motor tricycle to rotate, so that the motor tricycle can realize quick gear running; if the boosting shifting fork 17 drives the boosting joint gear sleeve 10 to axially move to be separated from spline fit between the boosting joint gear sleeve and the main shaft 3 and is connected with the boosting output driven gear 11, a power path of the reverse gear in work is that a boosting driving gear 4-2 of the gear shifting gear sleeve 4 drives the boosting driven gear 18 to rotate, the boosting driven gear 18 drives the boosting output driving gear 16 to rotate through the boosting transmission shaft 15, the boosting output driven gear 11 meshed with the boosting output driving gear 16 drives the boosting joint gear sleeve 10 to rotate, and finally the output shaft 14 is driven to rotate to drive the rear wheel of the motorcycle to rotate, so that slow gear boosting running of the motor tricycle is realized. The fast gear can meet the running requirement of the motor tricycle under the normal condition, and the slow gear can meet the running requirement under the conditions of heavy load and climbing. The reverse gear can realize the afterburning and provide sufficient drive power for motor tricycle during heavy load and climbing, has guaranteed motor tricycle's normal driving, and the experience of driving feels more comfortable. And the use and the gear switching are simple, the oil consumption is reduced, and the cost is saved. The running with sufficient power under the conditions of heavy load and climbing can also slow down the loss of the parts of the motor tricycle, and the service life is prolonged.

Claims

1. The utility model provides a tricycle's afterburning reverse gear ware, includes box (1) of reverse gear ware, through a bearing support main shaft (3) in box (1), the empty cover reverse gear (2), the fender gear (9) that advances on main shaft (3), one shift gear cover (4) are located between reverse gear (2) and the fender gear (9) that advances and main shaft (3) spline fit, and but axial displacement and reverse gear (2) or the fender gear (9) joint that advances, shift gear cover (4) are driven by shift fork (5), shift fork (5) are installed on shift fork pivot (8) of shifting, and an input bevel gear (25) pass through the bearing support in box (1), input bevel gear (25) mesh with reverse gear (2), the fender gear (9) that advances respectively, its characterized in that: a stress application transmission shaft (15) parallel to the main shaft (3) is supported in the box body (1) through a bearing, a boosting driven gear (18) and a boosting output driving gear (16) are arranged on the boosting transmission shaft (15), the boosting driven gear (18) is meshed with the gear shifting sleeve (4), an output shaft (14) is supported on the box body (1) through a bearing and extends outwards, one end of the output shaft (14) positioned in the box body (1) is matched with the main shaft (3) through a bearing to form a concentric shaft, a force-applying output driven gear (11) is sleeved on the output shaft (14) in an empty way, the boosting output driven gear (11) is meshed with the boosting output driving gear (16), a boosting joint gear sleeve (10) is in spline fit with the main shaft (3) and the output shaft (14), and the gear sleeve can axially move to be disengaged from the main shaft (3) and is engaged with a boosting output driven gear (11), and the boosting engagement gear sleeve (10) is driven by a boosting shifting fork (17).

2. The power reverse of the motor tricycle of claim 1, wherein: the box body (1) is matched with an axial sliding stress application shifting fork shaft (19) in a sliding mode, the stress application shifting fork shaft (19) is vertically staggered with a gear shift shifting fork rotating shaft (8), a fork tail of the stress application shifting fork (17) is fixed on the stress application shifting fork shaft (19), one end of the stress application shifting fork shaft (19) extends out of the box body (1), a clamping groove (19-1) is formed in the extending end, a stress application pedal (23) is sleeved on the extending end of the gear shift shifting fork rotating shaft (8) in an empty mode, the stress application pedal (23) is provided with a downward extending shifting arm (23-1), and the free end of the shifting arm (23-1) is clamped in the clamping groove (19-1) of the stress application shifting fork shaft (19) and used for shifting the stress application shifting fork shaft (19) to move axially.

3. The power reverse of the motor tricycle of claim 2, wherein: two arc-shaped locking grooves (19-2) are axially arranged on the boosting declutch shift shaft (19), a positioning steel ball (20) is arranged on the box body (1) and corresponds to the locking grooves (19-2), the positioning steel ball (20) is arranged in a hole formed in the box body (1), and the boosting declutch shift shaft (19) is locked by the tight abutting of the spring force accumulation and the locking grooves (19-2).

4. The power reverse of the motor tricycle of claim 1, wherein: the gear shifting fork rotating shaft (8) is supported on the box body (1), one end of the gear shifting fork rotating shaft (8) extends out of the box body (1), and a gear shifting pedal (24) is circumferentially fixed on the extending end of the gear shifting fork rotating shaft (8).

5. The power reverse of the motor tricycle of claim 1, wherein: one side of the fork tail of the gear shifting fork (5) is provided with a locking groove (5-2) for forward gear and reverse gear, a gear locking pin (7) is installed on the box body (1), the head end of the gear locking pin (7) corresponds to the locking groove (5-2) of the gear shifting fork (5), and a compression spring (6) is arranged between the gear locking pin (7) and the box body (1).

6. The power reverse of the motor tricycle of claim 1, wherein: the diameter of the gear shifting sleeve (4) is smaller than that of the boosting driven gear (18), and the diameter of the boosting output driving gear (16) is smaller than that of the boosting output driven gear (11).

7. The power reverse of the motor tricycle of claim 1, wherein: the middle section of the gear shifting gear sleeve (4) is provided with a boosting driving gear (4-2), the boosting driving gear (4-2) is meshed with a boosting driven gear (18), an annular groove (4-1) is formed in the outer circumference of the middle part of the boosting driving gear (4-2), the gear shifting fork (5) is matched in the annular groove (4-1) of the gear shifting gear sleeve (4), and engaging teeth (4-3) which are engaged with the reverse gear (2) and the forward gear (9) are respectively arranged on two sides, located on the boosting driving gear (4-2), of the gear shifting gear sleeve (4).

8. The power reverse of the motor tricycle of claim 1, wherein: one end of the output shaft (14) positioned in the box body (1) is provided with a shaft hole, the shaft end of the main shaft (3) is provided with a shaft neck (3-1), and the shaft neck (3-1) is inserted into the shaft hole of the output shaft (14) and is in sliding fit with the output shaft (14) through a bearing.

9. The power reverse of the motor tricycle of claim 8, wherein: the bearing comprises a sliding bearing (12) and a rolling bearing (26), the shaft hole of the output shaft (14) is a stepped hole, the sliding bearing (12) is located in the small-diameter section of the stepped hole, and the rolling bearing (26) is located in the large-diameter section of the stepped hole and is axially limited.

10. The power reverse of the motor tricycle of claim 1, wherein: the boosting transmission shaft (15) and the boosting output driving gear (16) are of an integral structure, and the boosting driven gear (18) is circumferentially fixed on the boosting transmission shaft (15) through a spline.