Toothless synchronizing ring and synchronizer

[0018] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0019] See figure 2 , the present invention comprises an annular base body 1, the base body 1 is provided with an inner tapered hole 2, and one end of the base body 1 located at the large diameter end of the inner tapered hole 2 is provided with a flange end 11, and the outer peripheral surface of the base body 1 is axially At least three grooves 12 are evenly distributed, the grooves 12 are stepped, and the locking protrusion 3 has a wide tooth-shaped protrusion 31. After the locking protrusion 3 is embedded in the groove 12, the wide tooth-shaped protrusion The portion 31 is located on the outer circumferential surface of the flange end 11 and protrudes radially outward.

[0020] Specifically, the two side arms of the recess on the flange end 11 of the stepped groove 12 have side recesses, the side recesses open toward the groove 12, the locking projection 3 is stepped, and the wide tooth-shaped protrusion 31 is located on the uppermost step of the locking projection 3, and the uppermost step exceeds the wide-tooth-shaped protrusion 31 on both sides of the circumferential direction of the flange end 11, and the part beyond the wide-tooth-shaped protrusion 31 is embedded in the Undercut.

[0021] See image 3 , Figure 4 At least three positioning protrusions 13 or at least three positioning grooves 14 are evenly distributed on the outer peripheral surface of the base 1 between the narrow end of the inner tapered hole 2 and the flange end 11 .

[0022] image 3 , Figure 4 As a preferred embodiment of the present invention, the number of locking projections 3, positioning projections 13, and positioning grooves 14 are three, Figure 5 It is an exploded schematic diagram of the main structure of the synchronizer adopting the synchronization ring of the present invention. See Figure 5 , the synchronizer of the present invention includes a tooth seat 5, the engaging tooth sleeve 4 is sleeved on the tooth seat 5, and is movably connected with the tooth seat 5 through a spline, and both sides of the tooth seat 5 are provided with synchronous rings 6, Cone ring 7 and joint ring gear 8, synchronous ring 6 adopts toothless synchronous ring according to the present invention, the outer peripheral surface between the narrow end of inner tapered hole 2 of synchronous ring 6 and the flange end 11 and the inner surface of tooth seat 5 The circumferential surfaces are connected, and are engaged and connected with corresponding grooves or corresponding protrusions on the inner circumferential surface of the tooth holder 5 through the positioning protrusions 13 or positioning grooves 14, and the inner circumferential surface of the engaging tooth sleeve 4 corresponds to the locking protrusion The position of the block 3 is provided with a groove engaging the wide-tooth-shaped protrusion 31, and the circumference diameter of the outer edge of the locking protrusion 3 is the same as or similar to the diameter of the addendum circle of the spline teeth on the outer circumference of the tooth seat 5, When shifting gears, the engaging tooth sleeve 4 can slide in the gap between the tooth grooves between the outer spline teeth on the tooth seat 5 and the gap between the wide tooth-shaped convex parts 31, and through the toothless synchronous ring and the cone of the present invention The friction of the tapered surface of the ring 7 realizes the rapid synchronization of the engaging tooth sleeve 4 and the engaging ring gear 8, and at the same time, it can prevent the gears from meshing before synchronization and realize the locking effect.

[0023] The above description is an explanation of the present invention, not a limitation of the invention. For the limited scope of the present invention, please refer to the claims. Within the protection scope of the present invention, any form of modification can be made.