CN201592760U

CN201592760U - Variable-speed stress-application device for motor tricycle rear axle

Info

Publication number: CN201592760U
Application number: CN2009203056836U
Authority: CN
Inventors: 郭昌竹
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-06
Filing date: 2009-07-06
Publication date: 2010-09-29
Anticipated expiration: 2019-07-06

Abstract

The utility model discloses a variable-speed stress-application device for a motor tricycle rear axle, which comprises a housing mounted with a transmission mechanism and a control mechanism. The variable-speed stress-application device is characterized in that the transmission mechanism comprises an input gear shaft and an output shaft which are provided with splines, wherein the two shafts are supported in parallel in the housing through a bearing, a driving clutch sleeve and a driven clutch sleeve are in sliding fit with the input gear shaft and the output shaft through the splines, the driving and driven clutch sleeves are combined with the gears on the two sides thereof through end gears, and the external annular grooves of the clutch sleeves are connected with the first and second shifting forks of the control mechanism respectively. The utility model comprises three speed outputs, thereby achieving the high speed and low oil consumption in case of level-road and no-load, energy consumption and environmental protection, and high power in case of climbing with heavy load; the moving parts are reliable in connection and long in service life, the structure of the whole device is simple and the manufacturing cost thereof is low; and the lock-pin mutually locked design is adopted for the control mechanism, the co-operation of the two shifting forks is eliminated, and the part losses and the accidents arising therefrom are avoided.

Description

Motor-tricycle back axle speed change augmenter

Technical field

The utility model relates to the driving device of motor-tricycle, specifically relates to a kind of motor-tricycle back axle speed change augmenter.

Background technology

The back axle speed change augmenter of existing motor-tricycle generally all can only two retaining speed changes, and its top gear is equivalent to the speed of the single speed ratio back axle of motor-tricycle tradition, are suitable for motor-tricycle and travel under carrying in level road; And bottom gear (be commonly called as afterburning retaining) speed is low, power is big, be suitable for motor-tricycle under heavily loaded climbing state, to travel, if but motor-tricycle in the level road underloading or when unloaded, deficiencies such as speed is slow, oil consumption is high, noise is big can appear.And notification number to be the Chinese utility model patent of CN201047422Y disclose a kind of " the rear-mounted secondary three speed back Biodge devices of motor-tricycle ", though it can realize the output of three kinds of speed of back axle, but also there are following defective and deficiency: 1, what it adopted is spline spindle, the spline countershaft, the three-axis structure form that the shaft coupling finishing bevel gear cuter is formed, spline spindle is an input shaft, it docks by the involute transition gear with shaft coupling finishing bevel gear cuter as output shaft, spline spindle one end is bearing on the involute transition gear by bearing carrier ring, the shaft coupling finishing bevel gear cuter is bearing on the speed change housing by bearing carrier ring, and captive joint with the involute transition gear with shaft retaining ring by spline, such structure is owing to use part many, spline spindle is connected for floating with the shaft coupling finishing bevel gear cuter, along with the wearing and tearing of each parts, it is unreliable to exist the installation connection, each movable parts strained condition worsens, the shortcoming that life-span is short; 2, motor bike is when normal driving states, by main shift fork slide bidentate wheel of main shaft is toggled it to the position that is meshed with the involute transition gear, thereby driving the shaft coupling finishing bevel gear cuter of captiveing joint with the involute transition gear rotates synchronously, such type of belt drive is by the direct-connected transferring power of transition part with two transmission shafts, its deficiency is that transmitting ratio is fixed, can not optimize the change transmitting ratio, the rotation of diaxon constant speed; 3, because its main shift fork, secondary shift fork does not reset and the restriction of interlock, can drive main shaft slip bidentate wheel, the slip of countershaft slip bidentate wheel simultaneously separately, the position does not limit, if make mistakes slightly during operation, then can make two groups of gears of transferring power mesh transferring power simultaneously, cause damage parts, cause serious mechanical accident and safety misadventure; 4, its whole driving parts nearly all adopt the structure of involute cylindrical gear, and the cylindrical wheel of the still interior external tooth of part gear, such part manufacturing process complexity, productive costs height.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of motor-tricycle back axle speed change augmenter, it comprises can adapt to three kinds of light, unloaded speed outputs of level road, to adapt to the demand of different road conditions and load, and movable parts connects reliably, the life-span is long, whole apparatus structure is simple, low cost of manufacture.

For solving the problems of the technologies described above, the technical solution of the utility model is as follows: a kind of motor-tricycle back axle speed change augmenter, comprise the housing that transmission device and steering unit are housed, its key is, described transmission device comprises input gear axle and the output shaft that has spline, and diaxon is supported in the described housing by bearing with paralleling, be set with high speed driving gear and middling speed driving gear on the described input gear axle, slidable fit has the active clutch cover of two ends band edge tooth on the splined shaft section between this two gear, and described end tooth can engage with set groove or end tooth on described high speed driving gear and the middling speed driving gear forward surface;

Described high speed driving gear is meshed with the solid high speed driven gear that overlaps on the described output shaft, on described output shaft, also be set with middling speed driven gear and low speed driven gear, slidable fit has the driven clutch cover of two ends band edge tooth on the splined shaft section between this two gear, described end tooth can engage with set groove on described middling speed driven gear and the low speed driven gear forward surface, described middling speed driven gear and low speed driven gear are meshed with the gear that carries on described middling speed driving gear and the described input gear axle respectively, and the axle head of described output shaft has finishing bevel gear cuter to stretch out from described housing;

Described steering unit comprises first fork and second fork, the fork of two described forks is respectively charged in the circular groove of described driving and driven clutch cover, the other end is captiveed joint with second declutch shift shaft with first declutch shift shaft respectively, thereby two described declutch shift shafts can move axially and drive two described shift forks described driving and driven clutch cover is moved.

For making the steering unit compact conformation, gearshift flexibly, reliably, as further design, described steering unit is on described housing guide holder to be housed, be fitted with parallel described first and second declutch shift shaft and gearshift axle in the described guide holder, this gearshift axle is connected by connecting panel at axle head with second declutch shift shaft, and second spring housing is loaded in the described gearshift spool and is against between the step surface in this connecting panel and guide holder hole, is connected with second wire digging line at this other end by pin; Described first declutch shift shaft, one end stretches out and is connected with first wire digging line by pin from the spring eye of described guide holder, and described spring eye is sealed by end cap, and first spring housing is loaded on described first declutch shift shaft and is against between the described end cap and first shift fork.

For making the interlocking of two shift forks energy, limiting two forks works simultaneously, the multiple sets of teeth wheel meshes transferring power simultaneously when avoiding misoperation, cause damage parts, accidents caused, as further improvement, described gearshift axle is located at the described first fork axle, one side, in two interaxle guide holders, lock pin is housed, on described gearshift axle and the first fork axle, be provided with relative annular groove, described lock pin two ends can be slipped into respectively in the described annular groove, and in described lock pin one end slipped into wherein one annular groove, the other end just withdrawed from another annular groove.

For making lock pin can successfully withdraw from this set annular groove rapidly down and insert set annular groove on another one move, as further improvement, the cross-sectional plane of described annular groove is a circular arc, and the both ends of the surface of described lock pin are arc surface.

For ease of assembling, described housing is formed by connecting by casing and case lid, and described input gear axle and output shaft are supported by the bearing of being adorned in casing and the case lid respectively.

As further improvement, the overcoat of described first wire digging line and second wire digging line is fixed on the adapter plate, and this adapter plate and described guide holder are fixed.

The utility model is diaxon three fast formula back axle speed change augmenters, adopts the drive mechanism of diaxon, and simple in structure, diaxon all directly is bearing on the housing by bearing, support solid and reliable, the parts on shaft engagement well, the life-span is long; Slide through its end tooth by driving and driven clutch cover and engage with the gear groove of its both sides, thereby reduced the use of cylindrical wheel, more do not need Foothed wheel with internal external tooth, manufacturing cost is reduced; Steering unit adopts two three manipulations of shift fork, and the gearshift design that the lock pin interlock spring resets is worked simultaneously thereby stopped two forks, and the multiple sets of teeth wheel meshes transferring power simultaneously, avoids the damage parts and the safety misadventure that cause thus.This device is to engage transferring power with middling speed driving gear, middling speed driven gear respectively by driving and driven clutch cover, or spur first wire digging line, drive the active clutch cover by first declutch shift shaft, first shift fork and move, making initiatively, clutch cover engages transferring power with the high speed driving gear; Or spur second wire digging line, drive second declutch shift shaft by the gearshift axle, drive driven clutch cover by second shift fork and move, make driven clutch cover engage transferring power with the low speed driven gear, can obtain the output of three kinds of different dynamic like this, realize the purpose of this utility model.

Owing to adopted technique scheme, the beneficial effects of the utility model are:

1, because this device has three kinds of speed, takeoff output, motor-tricycle can be selected proper speed and power according to different road conditions, different loads, accomplish that most possibly " economy "-level road no-load speed is fast, oil consumption is low, energy-conserving and environment-protective are accomplished " practicality "-heavy duty climbing power foot.

[0012]2, transmission shaft does not have the connection of floating, and all directly is bearing in the housing by bearing, and parts connect reliable, and transmission of power is steady, noise is little, and each movement parts can be because of unbalance loading cause abnormal wearing and tearing, the parts long service life.

3, steering unit adopts the gearshift design that the lock pin interlock spring resets, and works simultaneously thereby stopped two forks, and the multiple sets of teeth wheel meshes transferring power simultaneously, avoids the damage parts and the safety misadventure that cause thus.

4, simple in structure, low cost of manufacture.Transmission device is two transmission shafts only, and have replaced double crosslinking sliding gear by driving and driven clutch cover, have reduced the use of the gear of parts on shaft, more do not need Foothed wheel with internal external tooth, and manufacturing cost is reduced.

5, input gear axle and output shaft do not have synchronous rotation situation, and three kinds of speed all will could be exported from output shaft by the one-level gear transmission, change transmitting ratio so that optimize, and change the speed takeoff output.

6, the steering unit of three of two shift forks, compact conformation, gear shift operation is convenient, flexible, and makes that the weight of whole device is alleviated.

Description of drawings

Fig. 1 is for being the structural representation of the utility model transmission device (A of Fig. 2-A cutaway view).

Fig. 2 is the annexation figure (B of Fig. 3-B cutaway view) of input gear axle and steering unit among Fig. 1.

Fig. 3 is C-C cutaway view of Fig. 2.

Fig. 4 is D-D cutaway view of Fig. 3.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figures 1 to 4, a kind of motor-tricycle back axle speed change augmenter comprises input gear axle 1, output shaft 2, high speed driving gear 3, middling speed driving gear 4, active clutch cover 5, casing 6, case lid 7, high speed driven gear 8, middling speed driven gear 9, low speed driven gear 10, driven clutch cover 11, first fork 12, second fork 13, first declutch shift shaft 14, second declutch shift shaft 15, gearshift axle 16, guide holder 17, first wire digging line 18, end cap 19, first spring 20, connecting panel 21, second spring 22, second wire digging line 23, lock pin 24, with adapter plate 25.Wherein, casing 6 and case lid 7 become housing by bolted connection, and transmission device and steering unit are housed in casing 6.

Transmission device comprises input gear axle 1 and the output shaft 2 that parallels as shown in Figure 1, and diaxon is supported by the bearing of being adorned in casing 6 and the case lid 7 respectively.All be provided with splined shaft section on input gear axle 1 and the output shaft 2, on input gear axle 1, be set with high speed driving gear 3 and middling speed driving gear 4, slidable fit has the active clutch cover 5 of two ends band edge tooth on the splined shaft section between this two gear, its left end tooth can engage with the groove on the high speed driving gear 3, and its right gear can combine with set end tooth on the middling speed driving gear 4; High speed driving gear 3 is meshed with the solid high speed driven gear 8 that overlaps on the output shaft 2, on output shaft 2, also be set with middling speed driven gear 9 and low speed driven gear 10, slidable fit has the driven clutch cover 11 of two ends band edge tooth on the splined shaft section between this two gear, its end tooth can engage with set groove on middling speed driven gear 9 and low speed driven gear 10 forward surfaces, middling speed driven gear 9 and low speed driven gear 10 are meshed with the gear 1a that carries on middling speed driving gear 4 and the input gear axle 1 respectively, the axle head of output shaft 2 has finishing bevel gear cuter 2a to stretch out from the bottom of casing 6, and the finishing bevel gear cuter engagement on finishing bevel gear cuter 2a and the motor-tricycle rear-axle differential is with transferring power.

Extremely shown in Figure 4 as Fig. 2, steering unit is that guide holder 17 is housed on casing 6, be fitted with first and second parallel

declutch shift shaft

14,15 and gearshift axle 16 in institute's guide holder 17, this gearshift axle 16 is connected by connecting panel 21 at axle head with second declutch shift shaft 15, second spring 22 is set on the gearshift axle 16 and is against between the step surface in this connecting panel 21 and guide holder hole, the other end at this is connected with second wire digging line 23 by pin 23a, and pin 23a is that drag-line carries pin.First declutch shift shaft, 14 1 ends stretch out and are connected with first wire digging line 18 by pin 18a from the spring eye of described guide holder 17, pin 18a is that drag-line carries pin, spring eye is by end cap 19 sealings, and first spring 20 is set on described first declutch shift shaft 14 and is against between the described end cap 19 and first shift fork 12.On the middle part periphery of driving and driven

clutch cover

5,11, be provided with circular groove, the fork of first fork 12 and second fork 13 is respectively charged on the driving and driven

clutch cover

5,11 in the set circular groove, and the other end of first fork 12 and second fork 13 is set on first declutch shift shaft 14 and second declutch shift shaft 15 and pass through screw retention.The overcoat of first wire digging line 18 and second wire digging line 23 is fixed on the adapter plate 25 by carrying nut, and this adapter plate 25 passes through bolt with guide holder 17.First and second

declutch shift shaft

14,15 can be driven by first and second

wire digging line

18,23, thereby drive two

shift forks

12,13 driving and driven

clutch cover

5,11 is moved.

Extremely shown in Figure 4 as Fig. 2, gearshift axle 16 is located at the first fork axle, 14 1 sides, in two interaxle guide holders 17, lock pin 24 is housed, on the first fork axle 14 and gearshift axle 16, be provided with relative annular groove, the cross-sectional plane of annular groove is a circular arc, and the both ends of the surface of lock pin 24 are the arc surface suitable mutually with the annular groove shape, and lock pin 24 two ends can be slipped in two annular grooves respectively, in lock pin 24 1 ends slipped into wherein one annular groove, the other end just withdrawed from another annular groove.Like this, when the first fork axle 14 and gearshift axle 16 arbitrary axles are mobile, lock pin 24 can successfully withdraw from this set annular groove rapidly, insert another axle simultaneously and go up set annular groove, diaxon just can pass through the lock pin interlocking, works simultaneously thereby limit two forks, and multiple sets of teeth is taken turns and meshed transferring power simultaneously when avoiding misoperation, cause damage parts, accidents caused.

Device provided by the utility model is work like this:

When carrying in the level road, under the effect of first spring 20, initiatively the end tooth of clutch cover 5 engages with the end tooth of middling speed driving gear 4; Under the effect of second spring 22, the fillister joint of the end tooth of driven clutch cover 11 and middling speed driven gear 9.Power successively through active clutch cover 5, middling speed driving gear 4, middling speed driven gear 9, driven clutch cover 11, is given output shaft 2 by driven clutch cover 11 with transmission of power by 1 input of input gear axle.High speed driving gear 3, low speed driven gear 10 be idle running on input gear axle 1, output shaft 2 respectively then.

When low-speed heave-load, climbing, the steel wire that spurs in second wire digging line 23 compresses second spring 22, move gearshift axle 16, drive second declutch shift shaft 15, second shift fork 13 and driven clutch cover 11, make the fillister joint of the end tooth and the low speed driven gear 10 of driven clutch cover 11 by connecting panel 21.Power is by input gear axle 1 input, carries gear 1a, low speed driven gear 10, driven clutch cover 11 successively on gear wheel shaft 1, passes to output shaft 2.High speed driving gear 3, middling speed driven gear 9 be idle running on input gear axle 1, output shaft 2 respectively then.At this moment, insert in the annular groove of first declutch shift shaft 14 at an end of lock pin 24, first declutch shift shaft 14 is lockable.

When high speed light loading or zero load, the steel wire that spurs in first wire digging line 18 compresses first spring 20, moves first declutch shift shaft 14, first shift fork 12 and active clutch cover 5, makes the end tooth of active clutch cover 5 and the fillister joint of high speed driving gear 3.Power through active clutch cover 5, high speed driving gear 3, high speed driven gear 8, passes to output shaft 2 successively by 1 input of input gear axle.Middling speed driving gear 4, low speed driven gear 10 be idle running on input gear axle 1, output shaft 2 respectively then.At this moment, an end of lock pin 24 inserts in the annular groove of gearshift axle 16, and gearshift axle 16 is lockable.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. motor-tricycle back axle speed change augmenter, comprise the housing that transmission device and steering unit are housed, it is characterized in that: described transmission device comprises input gear axle (1) and the output shaft (2) that has spline, and diaxon is supported in the described housing by bearing with paralleling, be set with high speed driving gear (3) and middling speed driving gear (4) on the described input gear axle (1), slidable fit has the active clutch cover (5) of two ends band edge tooth on the splined shaft section between this two gear, and described end tooth can engage with set groove or end tooth on described high speed driving gear (3) and middling speed driving gear (4) forward surface;

Described high speed driving gear (3) is meshed with the high speed driven gear (8) that described output shaft (2) is gone up solid cover, on described output shaft (2), also be set with middling speed driven gear (9) and low speed driven gear (10), slidable fit has the driven clutch cover (11) of two ends band edge tooth on the splined shaft section between this two gear, described end tooth can engage with set groove on described middling speed driven gear (9) and low speed driven gear (10) forward surface, described middling speed driven gear (9) and low speed driven gear (10) are meshed with the gear (1a) that carries on described middling speed driving gear (4) and the described input gear axle (1) respectively, and the axle head of described output shaft (2) has finishing bevel gear cuter (2a) to stretch out from described housing;

Described steering unit comprises first fork (12) and second fork (13), the fork of two described forks is respectively charged in the circular groove of described master and slave clutch cover (5,11), the other end is captiveed joint with second declutch shift shaft (15) with first declutch shift shaft (14) respectively, and two described declutch shift shafts (14,15) thereby can move axially drive two described shift forks (12,13) moves described driving and driven clutch cover (5,11).

2. motor-tricycle back axle speed change augmenter according to claim 1, it is characterized in that: described steering unit is that guide holder (17) is housed in described housing, be fitted with parallel described first in the described guide holder (17), two declutch shift shafts (14,15) and gearshift axle (16), this gearshift axle (16) is connected by connecting panel (21) at axle head with second declutch shift shaft (15), second spring (22) is set in described gearshift axle (16) and goes up and be against between the step surface in this connecting panel (21) and guide holder hole, is connected with second wire digging line (23) at this other end by pin (23a); Described first declutch shift shaft (14) one ends stretch out and are connected with first wire digging line (18) by pin (18a) from the spring eye of described guide holder (17), described spring eye is by end cap (19) sealing, and first spring (20) is set in described first declutch shift shaft (14) and goes up and be against between described end cap (19) and first shift fork (12).

3. motor-tricycle back axle speed change augmenter according to claim 2, it is characterized in that: described gearshift axle (16) is located at the described first fork axle (14) one sides, in two interaxle guide holders (17), lock pin (24) is housed, on described gearshift axle (16) and the first fork axle (14), be provided with relative annular groove, described lock pin (24) two ends can be slipped in the described annular groove respectively, in described lock pin (24) one ends slipped into wherein one annular groove, the other end just withdrawed from another annular groove.

4. motor-tricycle back axle speed change augmenter according to claim 3, it is characterized in that: the cross-sectional plane of described annular groove is a circular arc, the both ends of the surface of described lock pin (24) are arc surface.

5. motor-tricycle back axle speed change augmenter according to claim 1, it is characterized in that: described housing is formed by connecting by casing (6) and case lid (7), and described input gear axle (1) and output shaft (2) are supported by the bearing of being adorned in casing (6) and the case lid (7) respectively.

6. motor-tricycle back axle speed change augmenter according to claim 2, it is characterized in that: the overcoat of described first wire digging line (18) and second wire digging line (23) is fixed on the adapter plate (25), and this adapter plate (25) is fixing with described guide holder (17).