CN2071722U

CN2071722U - Rotary overrunning clutch for vehicle

Info

Publication number: CN2071722U
Application number: CN 90200350
Authority: CN
Inventors: 郭景云
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-01-13
Filing date: 1990-01-13
Publication date: 1991-02-20

Abstract

The utility model discloses a rotary overrunning clutch for vehicle installed between the driving axle and the rear bridge of the existing vehicle or at the pass bridge bearing position of the driving axle. It is mainly characterized in that a connecting disk connected with the driving axle transfers the driving force to an inner body engaged with a splined gear and a splined axle engaged with the inner body until vehicle wheels until vehicle wheels through the splined gear engaged with an inner toothed ring. When the splined axle or a friction ring fixedly connected with the connected disk has speed difference or the splined gear are not engaged with the inner toothed ring, the roller in the groove of the friction disk of the left end of the inner body can be rubbed and rolled to the shallow end or the deep end of the groove so as to realize the brake or the pure rolling slide.

Description

Rotary overrunning clutch for vehicle

The utility model relates to a kind of Motor Vehicle and slides engaging and disengaging gear with on-slip.

The Placement that general employing can positive and negative two-way rotation between existing motor car engine variable ratio drive system and the wheel, when vehicle utilizes coast, speed changer is hung into neutral gear, the speed changer and the transmission shaft of transmission system rotate with wheel, a kind of like this structure makes speed changer still do unnecessary rotation with wheel as usual, and cause unnecessary wearing and tearing, and, be unfavorable for realizing bigger slide energy-saving owing to its surface friction drag consumes inertia energy.

For addressing this problem, many overrunning clutch have appearred both at home and abroad, 89200874.1 in disclosed vehicle rear axle engaging and disengaging gear though certain improvement is arranged in this regard, but it is to be equipped with complicated pawl base, ratchet, ratchet and gear ring system and to carry out work by the splined shaft that is fitted with bearing that is connected with wheel, makes the complicated inconvenience maintenance of this apparatus structure assembling.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect of existing in prior technology, and a kind of simple in structure, Remarkable Energy Saving vehicle rotation overrunning clutch is provided.

Basic principle of the present utility model is to connect overrunning clutch between the transmission shaft of existing vehicle and the back axle or the bridging bearing position of transmission shaft, stir and can or throw off and can be by operating mechanism with internal gear engagement along the spline gear in axial sliding of featherway on the interior body, and reach make normal vehicle operation or when sliding the pure rolling of transmission system and motor and wheel system disengaging slide.

Fig. 1 is a structure principle chart of the present utility model.

Structural representation when Fig. 2 is Figure 1A-A section cruising.

Fig. 3 is that Figure 1A-A section surmounts the structural representation when sliding.

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

Characteristics of the present utility model are interior bodies 15 that spline is all arranged inside and outside one of suit on the splined shaft 13 that is connected with wheel, (see figure 1) splined shaft 13 axle heads are connected and fixed with interior body 15 vertically by locknut 26 and retaining pad 25, inside and outside one of the suit key tooth is arranged all on the interior body 15 and be connected with shift fork 10 can along interior body 15 endwisely slip and with its outside internal gear 21 engagements or the spline gear 20 that breaks away from, interior body 15 left ends have one along its radial protrusion and have the friction disk 23 that slot 28 is equipped with roller 22, roller 22 on the friction disk 23 can contact with the inner face of its outer friction ring 3 of suit or break away from, the endoporus of friction disk 23 is raised on locknut 26 external diameters and cooperates with the outer ring part of the bearing 24 of the land 1 that links to each other with rotating shaft, land 1, friction ring 3 and can being connected and fixed by bolt 2 with the internal gear that has internal tooth 21 threes of spline gear 20 external tooths engagements, between its outer capsul 5 of internal gear 21 cylindricals and suit oil sealing 4 is housed, the shift fork 10 that can be connected with spline gear 20 external tooth right side annular grooves 27 is housed in the capsul 5, shift fork 10 upper ends are connected and fixed by rotating shaft 9 and screw 7 with the operating link mechanism that can feed operator cabin, and rotating shaft 9 tops have sealing cover 8 to be connected with capsul 5 by screw 6.Capsul 5 right sides and back axle gland 16, back axle 12 threes are connected and fixed by screw 11, between its interior interior body 15 smooth shaft part external diameters of back axle gland 16 and suit oil sealing 17 is housed, back axle 12 and the intersegmental bearing 14 that is equipped with of splined shaft 13 smooth shafts, be restriction spline gear 20 axial displacements, one circular groove 18 that is installed spring flange 19 is arranged on the body in interior body 15 external key tooth right-hand members, and the effect of ring washer 19 is that 20 external key tooth sections 15 of restriction spline gear move.The circumferencial direction of the friction disk 23 of interior body 15 left end projectioies is evenly equipped with at least 3 and sees Fig. 2 with the upper edge friction disk 23 logical slot 28(that axially slit), the radial height side of slot 28 bottom surfaces and its gap is the right angle trigonometry slot, in each slot 28 roller 22 is housed, the

jogger hole

30,30 that is drilled with a placement spring 31 and push rod 29 on its right angle radial side is faced the wall and meditated is in the neutral position of friction disk 23 slots 28 width.

Back-up ring 19 is that the internal tooth sliding engaged of the spline tooths right side, on interior body 15 cylindricals and the spline gear 20 of body 15 cylindrical spline tooths in being installed on also can move axially along interior body 15 upper spline sections.

Its working principle is when the operating mechanism that shift fork 10 is connected with rotating shaft 9 is dialled to the left, the spline gear 20 that clamps with shift fork 10 also together meshes by the left end of group inside body 15 and with internal gear 21, the driving force that transmitted by transmission shaft this moment reaches splined shaft 13 through land 1, friction ring 3, internal gear 21, spline gear 20, interior body 15, the wheel that is connected with splined shaft 13 is rotated synchronously, realize travelling normally and moveing backward.

When vehicle advances, shift fork 10 is allocated to the position of spline gear 20 and internal gear 21 disengagements, this moment, transmission system power was by land 1, friction ring 3, roller 22, friction disk 23 is passed to the run-in synchronism (see figure 2) of splined shaft 13 drive rear wheels forwards, because this moment, spline gear 20 was thrown off with internal gear 21, make and produce relative movement between friction ring 3 and the friction disk 23, thereby the triangle shallow end that the roller that is seated in friction disk 23 slots 28 22 is rubbed with the hands be rolled into slot 28 and wedging are between slot 28 and friction ring 3 internal surface contact position, so the splined shafts 13 that the transmission of power of friction ring 3 can be given interior body 15 and circumferentially meshed with interior body 15.

And when transmission shaft be that land 1 rotating speed slows down or when stopping, and since inertia make wheel be splined shaft 13 together with interior body 15 still to be higher than the rotational speed of land 1, therefore it is poor to form certain speed between friction ring 3 and friction disk 23, and rub the roller in the slot 28 22 with the hands be rolled into slot 28 right angle side deep end, and simultaneously push rod 29 is pushed up back within the jogger hole 30, this moment spring 31 pressurized (see figure 3)s, because disengage between friction ring 3 and the friction disk 23 promptly interior bodies 15 this moment, so wheel is together with splined shaft 13, spline gear 20 slides as pure rolling together, do not work with the transmission system that land 1 is connected, so can reduce the wearing and tearing and the power consumption of variable ratio drive system and motor, reach raising transmission system and engine life and energy-saving effect.Add downshift this moment and need not trample clutch and add sky pin oil, transmission system is that transmission shaft changes at weighing apparatus, so the increase and decrease shelves are quite light, so can replace synchronizer, under the low vehicle speed condition of high tap position, does not need downshift also can raise speed.So can reach the purpose of lowering energy-saving.

In the time of need utilizing engine control to reduce the speed of a motor vehicle when vehicle descending or brake failure, (if ring 21 is in disengaged position with spline gear 20 in this moment), the driver only need open the throttle, make the transmission shaft rotating speed be higher than the vehicle wheel rotational speed that rotates by inertia, just can make the roller 22 in friction disk 23 slots 28 rub the shallow end that is rolled into slot 28 with the hands, make power through friction ring 3, friction disk 23, reach splined shaft 13, the spline gear 20 that is connected with shift fork 10 can be pushed engaging position at the same time with internal gear 21, recover normal forward and reverse rotation, thereby reach the purpose (see figure 2) of the speed of a motor vehicle when utilizing engine resistance torque to reduce descending.

This shows that the utility model not only has prolongs engine clutch service life about 1/3 and energy-conservation about 1/5 characteristics, also have to rob easily shelves, safe and reliable characteristics, and be rotary overrunning clutch for vehicle a kind of simple in structure, practical.

Claims

1, a kind of vehicle rotates overrunning clutch, it is characterized in that:

A: the interior body 15 that spline is all arranged inside and outside one of the suit on the splined shaft 13 that is connected with wheel, splined shaft 13 axle heads are connected and fixed with interior body 15 vertically by locknut 26 and retaining pad 25, all have inside and outside one of the suit on the interior body 15 the key tooth and be connected with shift fork 10 can along interior body 15 endwisely slip and with its outside internal gear 21 engagements or the spline gear 20 that breaks away from, interior body 15 left ends have one along its radial protrusion and have slot 28, the friction disk 23 of roller 22 is housed, and the roller 22 of friction disk 23 can contact with the inner face of its outer friction ring 3 of suit or break away from;

B: the endoporus of friction disk 23 is raised on locknut 26 external diameters and cooperates with the outer ring part of the bearing 24 of the land 1 that links to each other with rotating shaft, land 1, friction ring 3 and be connected and fixed by bolt 2 with the internal gear that has internal tooth 21 threes of spline gear 20 external tooths engagement;

C: between its outer capsul 5 of internal gear 21 cylindricals and suit oil sealing 4 is housed;

D: capsul 5 right sides and back axle gland 16, back axle 12 threes are connected and fixed by screw 11;

E: back axle 12 and the intersegmental bearing 14 that is equipped with of splined shaft 13 smooth shafts.

2, rotate overrunning clutch according to the described vehicle of claim 1, it is characterized in that:

A: the shift fork 10 that can be connected with spline gear 20 external tooth right side annular grooves 27 is housed in the capsul 5, and shift fork 10 upper ends are connected and fixed by rotating shaft 9 and screw 7 with the operating link mechanism that feeds operator cabin;

B: the circumferencial direction of the friction disk 23 of interior body 15 left end projectioies is evenly equipped with at least 3 slots 28 that axially slit and lead to upper edge friction disk 23, the radial height side of slot 28 bottom surfaces and its gap is the right angle trigonometry slot, in each slot 28 roller 22 is housed, be drilled with the jogger hole 30 of a placement spring 31 and push rod 29 on its right angle radial side is faced the wall and meditated, jogger hole 30 is positioned at the neutral position of friction disk 23 slots 28 width;

C: back-up ring 19 has been installed on the right side of interior body 15 cylindrical spline tooths.