CN201025297Y

CN201025297Y - Buffering lockpin synchronizer

Info

Publication number: CN201025297Y
Application number: CNU2007200836057U
Authority: CN
Inventors: 樊颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-12
Filing date: 2007-02-12
Publication date: 2008-02-20
Anticipated expiration: 2017-02-12

Abstract

The utility model discloses a buffering lockpin synchronizer which is installed on a soldered tooth or a tooth holder of a gearbox output shaft, comprising two synchronous cone-shape rings, a locating pin, a lockpin, and a sliding coupling. The sliding coupling comprises two tooth rings and a sliding sleeve whose inner hole center is provided with a plurality of bosses uniformly distributed along the circumferential direction. The two tooth rings are separately sleeved from two ends of the inner hole of the sliding sleeve, and can freely rotate opposite to the sliding sleeve. The two tooth rings are limited along the axial direction opposite to the sliding sleeve. The buffering lockpin synchronizer is installed on the soldered tooth or the tooth holder of the output shaft, also can rotate relative to the soldered tooth or the tooth holder of the output shaft when the engager axial moving, thus play a part in releasing the inertia impact force generated by putting into gear, make the lockpin greatly reduce the bearing impact generated by the release locking torque, improve the using life. The utility model completely eliminates the phenomenon of breaking pin, improves using performance and economic benefit, reduces economic loss, has compact structure and good manufacturability.

Description

Buffering type lock pin synchronizer

Technical field

The utility model relates to the automobile gearbox synchronizer.

Background technique

At present, the automobile gearbox synchronizer mostly adopts two kinds of forms.A kind of is the lock ring synchronizer, and its reliable performance structure is complicated, because the size of cone of friction is subjected to the restriction of tooth cover, is used for car more; Another kind is the lock pin synchronizer, in conjunction with Fig. 1, shown in Figure 2, describe the structure that existing lock pin synchronizer is installed in output shaft and driving gear working state, it is made up of the soldered tooth of gear 1, awl dish 2, conical ring 3, locating stud 4, sliding gear collar 5, internal spline 5a, output shaft 6, output shaft or toothholder 6a, conical ring 7, gear 8, gear inner conical surface 8a, gear engagement tooth 8b, lock pin 9.Gear 1 and gear 8 are installed on the diameter of axle of output shaft 6 by needle roller respectively; Awl dish 2 is enclosed within on the spline of gear 1; Synchronizer is installed on the spline 6a of output shaft 6.Output shaft 6 rotates with higher speed during work, simultaneously, sliding gear collar 5 moves right, promote lock pin 9 and impel awl dish 7 to move right by sliding gear collar 5, awl dish 7 moves to and makes its conical surface contact the generation friction with the inner conical surface of gear 8, thereby make output shaft 6 rotating speed fast the rotating speed of (within 0.6～1 second) and gear 7 be tending towards with speed and reach with speed, this moment, sliding gear collar 5 continue the to move right part that makes its internal spline 5a engaged with spline 8a on the gear 8.Realize that output shaft 6 and gear 7 rotate synchronously.It is simple in structure, and the size of cone of friction is not subjected to the restriction of tooth cover, so be used for medium and heavy automobile, but because the generation of the different and unexpected situation of parameter and driver, easily produces the lock pin cut-out and failure phenomenon has reduced working life more.

Summary of the invention

To make a decision the pin phenomenon in order separating, to strengthen unfailing performance, reduce economic loss, the utility model proposes buffering type lock pin synchronizer.

The technical solution of the utility model is: buffering type lock pin synchronizer, be installed on the soldered tooth or toothholder of output shaft of gear-box, form by two synchronous conical rings, locating stud, lock pin, sliding gear collars, it is characterized in that: sliding gear collar is made up of two gear rings and flip sleeve, the endoporus middle part of flip sleeve is provided with along circumferential uniform a plurality of boss, two gear rings are inserted in from the endoporus two ends of flip sleeve respectively, but the slide relative cover freely rotates; Two gear rings are with respect to flip sleeve and by axial limiting.

This synchronizer is by on the soldered tooth or toothholder that are installed in output shaft, and three outstanding in endoporus boss are respectively in the soldered tooth or the groove on the toothholder of the output shaft that matches.Soldered tooth or the toothholder of making axially movable relative output shaft of while at engage a gear can also rotate to it.Thereby play the inertial impact force that produces when discharging engage a gear, what make lock pin reduce widely to be born takes off the impact that the lock moment produces, and has improved the life-span of using.

Summary, the beneficial effects of the utility model are: thoroughly eliminate and resolve the pin phenomenon, improved usability and economic benefit, reduced economic loss; Compact structure, good manufacturability.

Description of drawings

Fig. 1 is existing pin-type synchronizer structural drawing.

Fig. 2 is the installment state structural drawing of existing pin-type synchronizer.

Fig. 3 is first kind of structural drawing of buffering type lock pin synchronizer.

Fig. 4 is the installment state structural drawing of the lock pin of buffering type shown in Fig. 3 synchronizer.

Fig. 5 is along the A-A sectional view among Fig. 4.

Fig. 6 is second kind of structural drawing of pin-type synchronizer.

Fig. 7 is the side view of pin-type synchronizer shown in Figure 6.

Fig. 8 is the third structural drawing of pin-type synchronizer.

Fig. 9 is the side view of pin-type synchronizer shown in Figure 8.

Figure 10 is the output shaft structural drawing supporting with pin-type synchronizer.

Figure 11 is the side view of output shaft shown in Figure 10.

Embodiment

Be a kind of structure of buffering type lock pin synchronizer as shown in Figure 3, it is made up of three boss 15a, conical ring 17, lock pin 19, ring gear 20 and back-up ring 21 outstanding in conical ring 13, locating stud 14, flip sleeve 15, the flip sleeve endoporus.Sliding gear collar is made up of flip sleeve 15, two gear rings 20 and two back-up rings 21; Two gear rings 20 are installed in the both sides of boss 15a in the flip sleeve endoporus respectively, and two back-up rings 21 are installed in the interior hole slot of flip sleeve 15, and restriction gear ring 20 outwards moves, and gear ring 20 can freely rotate in the endoporus of flip sleeve 15.Locating stud 14 is installed in the positioning pin hole of flip sleeve 15 in the sliding gear collar assembly, lock pin 19 is installed in its lockpin hole, and conical ring 13 and conical ring 17 are one by lock pin 19 and sliding gear collar 15 riveted joints, form the buffering type synchronizer.

The buffering type lock pin synchronizer that is illustrated in figure 4 as model utility is installed in the structural drawing of output shaft and driving gear working state, and it is made up of the special groove 16a of the soldered tooth of three outstanding in gear 11, awl dish 12, conical ring 13, locating stud 14, flip sleeve 15, flip sleeve endoporus boss 15a, output shaft 16, output shaft or toothholder, soldered tooth or the soldered tooth 16b on the toothholder, conical ring 17, gear 18, gear inner conical surface 18a, gear engagement tooth 18b, lock pin 19, ring gear 2 and the back-up ring 21 of output shaft.Gear 11 and gear 18 are installed on the diameter of axle of output shaft 16 by needle roller respectively; Awl dish 12 is enclosed within on the spline of gear 11; Slow be used to be installed on the output shaft 16 towards formula lock pin synchronizer, make its ring gear 20 on the 16b that connects platform tooth or toothholder, three boss 15a embed in the soldered tooth or the groove 16a on the toothholder of output shafts 16.Output shaft 16 rotates with higher speed during work, simultaneously, sliding gear collar 15 moves right, promote lock pin 19 and impel conical ring 17 to move right by sliding gear collar 15, conical ring 17 moves to and makes its conical surface contact the generation friction with the inner conical surface of gear 18, thereby make output shaft 16 rotating speed fast the rotating speed of (within 0.6～1 second) and gear 17 be tending towards with speed and reach with speed, this moment, sliding gear collar 15 continue the to move right part that makes its internal spline 15a engaged with spline 18a on the gear 18.Realize that output shaft 16 and gear 17 rotate synchronously.

As Fig. 5, Fig. 6 is outer fixing formula structure graph of the present utility model, and its principle is identical with Fig. 3, and different is the mode that restriction gear ring 20 outwards moves.The structure of Fig. 3 is an internally-fixed, and this structure is the outer fixing formula, sees Fig. 5, it by flip sleeve 15, two ring gears 20, three or six ride hole clip 25, two steel wire clips 26 are formed.Ride the hole of hole clip 25 from the circumference of flip sleeve 15 and pass, two ring gears 20 are blocked, limit moving of its axial slide relative cover 15; Two steel wire clips 26 are ridden hole clip 25 with three or six and are limited in the fixing scope.

As Fig. 7, shown in Figure 8 be another kind of outer fixing formula structure graph of the present utility model, its principle is identical with Fig. 5, modes that restriction gear ring 20 outwards moves that different is.The structure of Fig. 5 is the outer fixing formula, and this structure is that conical ring is fixed, it by flip sleeve 15, two ring gears 20, three or six ride hole clip 25 and form.Ride the hole of hole clip 25 from the circumference of flip sleeve 15 and pass, two ring gears 20 are blocked, limit moving of its axial slide relative cover 15; Radially be limited in the fixing scope simultaneously by three of conical ring 17 or six breach.

As Figure 10, shown in Figure 11, on the axle journal that output shaft 16 is provided with, be provided with the axial groove 30 that mind-set two ends width therefrom broadens gradually in conjunction with tooth, axial groove 30 has three, and is uniform on circumference.Axial groove 30 shown in Figure 11 is three, and according to actual needs, the quantity of axial groove 30 can be selected between 3～6.Axial groove 30 is to admit the boss 15a shown in Fig. 1, to realize the buffering combination.

Claims

1. buffering type lock pin synchronizer, be installed on the soldered tooth or toothholder of output shaft of gear-box, form by two synchronous conical rings, locating stud, lock pin, sliding gear collars, it is characterized in that: sliding gear collar is made up of two ring gears and flip sleeve, the endoporus middle part of flip sleeve is provided with along circumferential uniform a plurality of boss, two ring gears are inserted in from the endoporus two ends of flip sleeve respectively, but the slide relative cover freely rotates; Two ring gears are with respect to flip sleeve and by axial limiting.

2. buffering type lock pin synchronizer according to claim 1, it is characterized in that: two ring gears with respect to flip sleeve and by a kind of structure of axial limiting are: two back-up rings (21) are installed in the interior hole slot of flip sleeve (15), and restriction gear ring (20) outwards moves.

3. buffering type lock pin synchronizer according to claim 1 is characterized in that: two ring gears with respect to flip sleeve and by a kind of structure of axial limiting are: be provided with three or six and ride hole clip (25), two steel wire clips (26); Ride the hole of hole clip (25) from the circumference of flip sleeve (15) and pass, two ring gears (20) are blocked, limit moving of its axial slide relative cover (15); Two steel wire clips (26) are ridden hole clip (25) with three or six and are limited in the fixing scope.

4. buffering type lock pin synchronizer according to claim 1, it is characterized in that: two ring gears with respect to flip sleeve and by a kind of structure of axial limiting are: be provided with three or six and ride hole clip (25), ride the hole of hole clip (25) from the circumference of flip sleeve (15) and pass, two ring gears (20) are blocked, limit moving of its axial slide relative cover (15); Radially be limited in the fixing scope simultaneously by three of conical ring (17) or six breach.