CN200982380Y

CN200982380Y - Synchronous gear-reversing for three-wheel motorcycle

Info

Publication number: CN200982380Y
Application number: CN 200620111965
Authority: CN
Inventors: 张良和
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-13
Filing date: 2006-12-13
Publication date: 2007-11-28
Anticipated expiration: 2016-12-13

Abstract

The utility model relates to a synchronous reverse device for a three-wheeled motorcycle, comprising a casing, an output shaft, a forward bevel gear and a reverse bevel gear which are freely sleeved on the output shaft, a splined hub driving bevel gear meshed with the forward bevel gear and the reverse bevel gear, and a foot-actuated shifting fork mechanism arranged on the casing. The utility model is characterized in that the position of the output shaft between the forward bevel gear and the reverse bevel gear is provided with a synchronous gear which is engaged with the spline, a forward separating tooth and a reverse separating tooth which are arranged on the two sides of the synchronous gear. The internal tooth of a synchronous ring is meshed with the synchronous gear and the forward separating tooth or is meshed with the synchronous gear and the reverse separating tooth. A ring groove on the cylindrical portion of the synchronous ring is engaged with the shifting fork of the foot-actuated shifting fork mechanism.

Description

The synchronous gear reversing device of a kind of motor tricycle

Technical field

The utility model relates to the motor tricycle reverse gear mechanism, is specifically related to the synchronous gear reversing device of a kind of motor tricycle.

Background technique

The synchronous reverse gear of existing motor tricycle is installed in before the back axle drive, input shaft cooperates with the housing of reverse gear, on input shaft, be provided with forward gears bevel gear, reverse gear bevel gear, side at the reverse gear housing is provided with the gap bridge bevel gear, gap bridge bevel gear and forward gears bevel gear, the engagement of reverse gear bevel gear; Being provided with input shaft between the forward gears bevel gear reverse gear bevel gear is the synchronous interface cover of spline fitted, the two ends of synchronous interface cover are provided with claw, the claw of the draw-in groove of the claw of one end and the forward gears bevel gear side engagement or the other end meshes with the draw-in groove of reverse gear bevel gear side under the stirring of shift fork, thereby motor tricycle is advanced or retreats.The reverse gear of this structure is when gear shift, and claw usually is not easy to aim at draw-in groove, and noise is bigger; Do not have insurance institution, situation out of supply happens occasionally in addition; The foot treadle axle is located at a piece, and insufficient strength is damaged easily.Therefore, the synchronous reverse gear of existing motor tricycle need be improved.

Summary of the invention

The purpose of this utility model provides the synchronous gear reversing device of a kind of motor tricycle, and its compact structure, conversion gear are accurately and reliably, and be not out of supply; Operate lightly, noise is little; Foot-operated shifting fork mechanism support intensity height, long service life.

The synchronous gear reversing device of a kind of motor tricycle described in the utility model, comprise housing, be located at the foot-operated shifting fork mechanism on the housing, the output shaft that cooperates with the housing both sides by bearing, sky is enclosed within advance tooth cone pulley and the reverse gear bevel gear on the output shaft, by bearing be engaged in the housing downside and with the spline housing drive bevel gear of bevel gear and the reverse gear bevel gear engagement of advancing, it is characterized in that: on the output shaft position of advancing between bevel gear and the reverse gear bevel gear, be provided with its for the synchromesh gear of spline fitted and be positioned at the synchromesh gear both sides and sky is enclosed within advancing on this position of output shaft and separates tooth and separate tooth with reverse gear;

The claw that separates the tooth right side that advances cooperates with the draw-in groove of the bevel gear left side of advancing, and the claw that reverse gear is separated the tooth left side cooperates with the draw-in groove of reverse gear bevel gear right side;

The right part that synchronizing ring is enclosed within synchromesh gear separates the outside of tooth or is enclosed within the left part of synchromesh gear separates tooth with reverse gear outside with advancing, and the internal tooth of synchronizing ring separates the tooth engagement or separates the tooth engagement with reverse gear with synchromesh gear with advancing with synchromesh gear; Annular groove on the synchronizing ring cylindrical cooperates with dialling of foot-operated shifting fork mechanism.

The utility model has saved carrier gear, and engine output shaft directly cooperates with the spline housing drive bevel gear, and the spline housing drive bevel gear meshes with advance bevel gear and reverse gear bevel gear simultaneously, and structure is very compact.The setting of synchronizing ring has not only improved the accuracy of transforming gear greatly, and; Operate lightly, noise is little.

The synchronous gear reversing device of described a kind of motor tricycle is provided with an anticreep gear mechanism of being made up of silently bolt, spring and insurance resistance head at the downside of housing, and the shift fork of riding shifting fork mechanism is withstood in the upper end of insurance resistance head.Because be provided with the anticreep gear mechanism, so, can prevent out of supply effectively.

The synchronous gear reversing device of described a kind of motor tricycle, its foot-operated shifting fork mechanism comprise fixedly connected housing one side support, be located at shift fork rotating shaft on the support, be connected foot treadle and sliding set in the shift fork rotating shaft, be located at shift fork pull bar between the housing both sides, be located by connecting on the shift fork on the shift fork pull bar, an end of sliding set cooperates with notch on the shift fork pull bar.

At the fixedly connected support of housing one side, the shift fork rotating shaft of foot-operated shifting fork mechanism is rack-mount again, because the strength ratio of support is propped up the piece height, be not easy to damage, so, long service life.

On the foot-operated shifting fork mechanism of the synchronous gear reversing device of a kind of motor tricycle, be provided with a boosting mechanism, boosting mechanism is by the shift fork reinforcement cover that is connected at shift fork rotating shaft middle part, the crotch of upper end respectively with the shift fork reinforcement overlap two spring rods that two holes of an end cooperate, respectively be located at two on the spring rod pressure spring and be fixed on support upper spring seat composition, upper spring seat is passed in the lower end of two spring rods.On foot-operated shifting fork mechanism, a boosting mechanism is set, makes the gear shift operation easy and flexible.

The utility model is compared with prior art and had the following advantages: the conversion gear not accurately and reliably, and is and out of supply; Gear-change operation is light, and noise is little; Foot-operated shifting fork mechanism intensity height, long service life.

Description of drawings

Fig. 1 is an external form schematic representation of the present utility model.

To be the utility model be in view when advancing at motor tricycle to Fig. 2.

Fig. 3 is the A-A sectional view of Fig. 2.

To be the utility model be in view when retreating at motor tricycle to Fig. 4.

Fig. 5 is the structural drawing of synchronous tooth.

The left view of Fig. 6 Fig. 5.

Fig. 7 is the structural drawing of synchronizing ring.

Fig. 8 is the left view of Fig. 7.

Fig. 9 is that advance separation tooth/reverse gear separates the structural drawing of tooth.

Figure 10 is the left view of Fig. 9.

Figure 11 is the right elevation of Fig. 9.

Figure 12 is foot-operated shifting fork mechanism schematic representation.

Figure 13 is the structural drawing of sliding set.

Figure 14 is the plan view of Figure 13.

Figure 15 is a shift fork reinforcement nested structure schematic representation.

Figure 16 is the plan view of Figure 15.

Figure 17 is the schematic representation of shift fork pull bar.

Figure 18 is the schematic representation of shift fork rotating shaft.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.

Referring to Fig. 1 to Figure 18, with the spline fitted on synchromesh gear 6 and the output shaft 2, the separation tooth 7 that advances separates the both sides that tooth 8 skies are enclosed within on the output shaft and are positioned at synchromesh gear with reverse gear, the right part that synchronizing ring 9 is enclosed within synchromesh gear separates the outside of tooth 8 with advancing, and the internal tooth of synchronizing ring separates tooth 7 engagements with synchromesh gear with advancing; Advance tooth cone pulley 3 and reverse gear bevel gear 4 skies are enclosed within on the output shaft, and the claw that draw-in groove cooperates, reverse gear is separated tooth 8 left sides of the advance claw that separates tooth 7 right sides and bevel gear 3 left sides of advancing is cooperated with the draw-in groove of reverse gear bevel gear 4 right sides; By bearing output shaft 2 is installed in the both sides of housing 1, the downside that spline housing drive bevel gear 5 is installed in housing again, and meshes with advance bevel gear and reverse gear bevel gear;

Shift fork 19 is installed on the shift fork pull bar 18, again shift fork pull bar 18 is installed in housing 1 both sides, and shift fork 19 is cooperated with annular groove 10 on the synchronizing ring cylindrical; To be installed in the downside of housing 1 by bolt 11 silently, spring 12 and insurance resistance 13 an anticreep gear mechanism of forming, and make insurance hinder a upper end of 13 to withstand shift fork 19;

One end of shift fork rotating shaft 15 is installed on the support 14, foot treadle 16, sliding set 17, shift fork reinforcement cover 21 are connected in shift fork rotating shaft 15, the crotch of two spring rod 22 upper ends cooperates with two holes that the shift fork reinforcement overlaps an end respectively, two pressure springs 23 are enclosed within respectively on two spring rods, and the lower end of two spring rods are passed be fixed on support 14 upper spring seats 24;

Support 14 is fixedly connected on housing 1 one sides, and an end of the sliding set 17 that is connected in the shift fork rotating shaft is cooperated with notch 20 on the shift fork pull bar 18 get final product.

When advancing, synchronizing ring is under the effect of foot-operated shifting fork mechanism, its internal tooth separates the tooth engagement with synchromesh gear with advancing, the spline housing drive bevel gear that is connected with engine output shaft passes to the bevel gear that advances with moment of torsion, separation tooth and synchronizing ring pass to synchromesh gear through advancing, synchromesh gear will transmit output shaft again, at this moment, separate tooth with the reverse gear bevel gear of spline housing drive bevel gear engagement and with the reverse gear of its engaging and will be engaged on output shaft idle running.

During reverse gear, synchronizing ring is under the effect of foot-operated shifting fork mechanism, its internal tooth separates the tooth engagement with synchromesh gear with reverse gear, the spline housing drive bevel gear that is connected with engine output shaft passes to the reverse gear bevel gear with moment of torsion, pass to synchromesh gear through reverse gear separation tooth and synchronizing ring, synchromesh gear will transmit output shaft again, at this moment, and with the bevel gear and separate tooth with advancing of its engaging and be engaged on output shaft idle running of advancing of spline housing drive bevel gear engagement.

Claims

1, the synchronous gear reversing device of a kind of motor tricycle, output shaft (2), the sky that comprises housing (1), is located at foot-operated shifting fork mechanism on the housing, cooperates with the housing both sides by bearing be enclosed within advance tooth cone pulley (3) and reverse gear bevel gear (4) on the output shaft, by bearing be engaged in the housing downside and with the spline housing drive bevel gear (5) of bevel gear and the reverse gear bevel gear engagement of advancing

It is characterized in that: on the output shaft position that is positioned between bevel gear that advances (3) and the reverse gear bevel gear (4), be provided with its for the synchromesh gear of spline fitted (6) and be positioned at the synchromesh gear both sides and empty be enclosed within advancing on this position of output shaft and separate tooth (7) and separate tooth (8) with reverse gear; The claw that separates tooth (7) right side that advances cooperates with the draw-in groove of the bevel gear that advances (3) left side, and the claw that reverse gear is separated tooth (8) left side cooperates with the draw-in groove of reverse gear bevel gear (4) right side; The right part that synchronizing ring (9) is enclosed within synchromesh gear (6) and the left part that separates the outside of tooth (8) or be enclosed within synchromesh gear (6) of advancing separate the outside of tooth (8) with reverse gear, the internal tooth of synchronizing ring separates the tooth engagement or separates the tooth engagement with reverse gear with synchromesh gear with advancing with synchromesh gear; Annular groove on the synchronizing ring cylindrical (10) cooperates with the shift fork of foot-operated shifting fork mechanism.

2, the synchronous gear reversing device of a kind of motor tricycle according to claim 1, it is characterized in that: be provided with the anticreep gear mechanism of being made up of silently bolt (11), spring (12) and insurance resistance head (13) at the downside of housing (1), the shift fork of riding shifting fork mechanism is withstood in the upper end of insurance resistance head (13).

3, the synchronous gear reversing device of a kind of motor tricycle according to claim 1 and 2, it is characterized in that: described be located at foot-operated shifting fork mechanism also comprise fixedly connected housing (1) one side support (14), be located at shift fork rotating shaft (15) on the support, be connected foot treadle (16) and sliding set (17) in the shift fork rotating shaft, be located at shift fork pull bar (18) between housing (1) both sides, be located by connecting on the shift fork (19) on the shift fork pull bar, an end of sliding set (17) cooperates with notch (20) on the shift fork pull bar (18).

4, the synchronous gear reversing device of a kind of motor tricycle according to claim 1 and 2, it is characterized in that: on foot-operated shifting fork mechanism, be provided with a boosting mechanism, boosting mechanism is by the shift fork reinforcement cover (21) that is connected at shift fork rotating shaft (15) middle part, the crotch of upper end respectively with the shift fork reinforcement overlap two spring rods (22) that two holes of an end cooperate, respectively be located at two on the spring rod pressure spring (23) and be fixed on support (14) upper spring seat (24) composition, upper spring seat (24) is passed in the lower end of two spring rods.