CN219932780U

CN219932780U - Tensioning synchronizer

Info

Publication number: CN219932780U
Application number: CN202321235664.7U
Authority: CN
Inventors: 蔡斌标
Original assignee: Zhongchuan Technology Zhejiang Co ltd
Current assignee: Zhongchuan Technology Zhejiang Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-10-31
Anticipated expiration: 2033-05-22

Abstract

The utility model discloses a tension synchronizer, which comprises: the device comprises a shaft rod, a synchronizer ring sleeve, a synchronizing taper pin, and a first transmission tooth and a second transmission tooth which are movably sleeved on the surface of the shaft rod, wherein the first transmission tooth and the second transmission tooth are symmetrically arranged about the synchronizer ring sleeve, one sides of the first transmission tooth and the second transmission tooth are respectively provided with a synchronizing taper, the surface of the synchronizing taper is provided with a joint tooth, the synchronizer ring is movably sleeved on the periphery of the synchronizing taper, the synchronizer ring sleeve is movably sleeved on the outer side of the synchronizer ring, and a spring ring is arranged on the inner side of the synchronizer ring sleeve. According to the utility model, by arranging the synchronous taper pin structure, the synchronous taper pin is inserted into the inner side of the tensioning hole to be tensioned by utilizing the fit movement of the synchronous taper pin and the synchronous taper pin on the surfaces of the first transmission gear and the second transmission gear, so that the expansion sheet protrudes to be jointed with the inner side of the synchronizer ring, the friction coefficient is improved, the torque transmission of the synchronizer in the asynchronous state is ensured, the synchronizer gradually reaches the synchronous state, and the synchronous structure is simple and high in stability.

Description

Tensioning synchronizer

Technical Field

The utility model relates to the technical field of synchronizers, in particular to a tension synchronizer.

Background

The synchronizer ring is an annular member which is disposed in a transmission of an automobile and rotates two gears (gear) simultaneously at the time of a shift-down operation of the transmission so that two gears engaged in a shift (shift) can be smoothly engaged with each other. Among the required features for the synchronizer ring are: (1) The coefficient of dynamic friction with the mating member is large to synchronize the two gears by frictionally engaging a tapered (stepped) portion, which is the mating member, (2) the synchronizer ring is resistant to wear in sliding with the mating member or the like.

The prior synchronizer structure mainly realizes the increase of friction coefficient until synchronous rotation of the synchronous cone and the synchronizer ring through mutual tensioning movement of the joint surface of the inner side of the synchronous cone and the synchronizer ring under the action of external force, the synchronous cone of the tensioning movement needs to increase the inclination angle of the conical surface to ensure larger friction under the condition that moment transmission of trucks, pull racing cars and the like is larger, and the friction effect still cannot be improved because the contact surface of the whole synchronous cone and the synchronizer ring is reduced in a cone angle increasing mode. In view of the above, the present utility model provides a tension synchronizer for solving the existing problems, and aims to solve the problems and improve the practical value by the technology.

Disclosure of Invention

The present utility model aims to solve the technical problems existing in the prior art or related technologies.

The technical scheme adopted by the utility model is as follows: a tension synchronizer, comprising: the device comprises a shaft rod, a synchronizer ring sleeve, a synchronizing taper pin and a first transmission tooth and a second transmission tooth which are movably sleeved on the surface of the shaft rod, wherein the first transmission tooth and the second transmission tooth are symmetrically arranged about the synchronizer ring sleeve, one sides of the first transmission tooth and one side of the second transmission tooth are respectively provided with a synchronizing taper, the surface of the synchronizing taper is provided with a joint tooth, the synchronizer ring is movably sleeved on the periphery of the synchronizing taper, the synchronizer ring sleeve is movably sleeved on the outer side of the synchronizer ring, a spring ring is arranged on the inner side of the synchronizer ring, a synchronizing sliding block which is in sliding butt with the inner side of the synchronizer ring is arranged on the surface of the spring ring, a plurality of tensioning holes which are in one-to-one correspondence with the synchronizing taper pin are formed in the surface of the synchronizing taper, and a tensioning sheet is arranged on the surface of the tensioning hole.

The present utility model may be further configured in a preferred example to: the synchronous cone and the joint tooth on the surface of the first transmission tooth are of an integrated structure, the synchronous cone and the joint tooth on the surface of the second transmission tooth are of an integrated structure, the surface of the synchronous cone is provided with a conical surface, the surface of the conical surface is of a frosted rough surface structure, and the inner side of the synchronizer ring is provided with a joint conical surface matched with the conical surface.

The present utility model may be further configured in a preferred example to: the tensioning hole on one side of the first transmission tooth is sleeved at one end of the synchronous taper pin, the other end of the synchronous taper pin is in sliding butt joint with the joint tooth on one side of the second transmission tooth, and a sliding seat connected with the surface of the spring ring is arranged on the surface of the synchronous taper pin.

The present utility model may be further configured in a preferred example to: the expansion sheet and the synchronous cone are of an integrated structure, and gaps communicated with the inside of the expansion hole are formed in two sides of the expansion sheet.

The present utility model may be further configured in a preferred example to: the two ends of the synchronous taper pin are provided with taper heads, the taper heads are of conical structures, and the end parts of the taper heads are of semi-spherical blunt structures.

The present utility model may be further configured in a preferred example to: the spring ring is of an elastic metal ring structure, and a guide groove for limiting the movement of the spring ring is formed in the bottom surface of the synchronous sliding block.

The beneficial effects obtained by the utility model are as follows:

according to the utility model, by arranging the synchronous taper pin structure, the synchronous taper pin structure utilizes the fit movement of the synchronous taper and the synchronous taper pin on the surfaces of the first transmission tooth and the second transmission tooth, the synchronous taper pin is inserted into the inner side of the tensioning hole for tensioning, so that the expansion sheet protrudes out to be connected with the inner side of the synchronizer ring, the friction coefficient is improved, the torque transmission of the synchronizer in the non-synchronous state is ensured, the synchronizer gradually reaches the synchronous state, the structure is simple, the stability is high, and in the synchronous state, the end part of the synchronous taper pin is inserted into the tensioning hole for tightly abutting the inner side of the synchronizer ring by the expansion sheet for tensioning, the joint strength of the synchronous taper and the synchronizer ring is improved for locking, and the synchronous transmission efficiency is maintained.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;

FIG. 3 is a schematic view of the surface structure of a synchronous cone according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the surface structure of a spring coil according to one embodiment of the present utility model.

Reference numerals:

100. a shaft lever; 110. a first drive tooth; 120. a second drive tooth; 121. a synchronous cone; 122. engagement teeth; 123. a conical surface; 124. tensioning the hole; 125. expanding sheets;

200. a synchronizer ring;

300. a synchronizing ring sleeve; 310. a spring ring; 320. a synchronous slide block;

400. synchronizing taper pins; 410. a conical head; 420. a slide seat.

Description of the embodiments

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

A tensioning synchronizer provided by some embodiments of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1 to 4, the tension synchronizer provided by the present utility model includes: the novel synchronous transmission device comprises a shaft rod 100, a synchronizer ring 200, a synchronizer ring sleeve 300, a synchronous taper pin 400, a first transmission tooth 110 and a second transmission tooth 120 which are movably sleeved on the surface of the shaft rod 100, wherein the first transmission tooth 110 and the second transmission tooth 120 are symmetrically arranged relative to the synchronizer ring sleeve 300, one sides of the first transmission tooth 110 and the second transmission tooth 120 are respectively provided with a synchronous taper 121, the surface of the synchronous taper 121 is provided with a joint tooth 122, the synchronizer ring 200 is movably sleeved on the periphery of the synchronous taper 121, the synchronizer ring sleeve 300 is movably sleeved on the outer side of the synchronizer ring 200, a spring ring 310 is arranged on the inner side of the synchronizer ring 300, a synchronous slider 320 which is in sliding butt with the inner side of the synchronizer ring 300 is arranged on the surface of the spring ring 310, a plurality of tensioning holes 124 which are in one-to-one correspondence with the synchronous taper pin 400 are arranged on the surface of the synchronous taper pin 400, and the surface of the tensioning holes 124 is provided with tensioning sheets 125.

In this embodiment, the first driving gear 110, the synchronizing cone 121 and the engaging gear 122 on the surface thereof are integrally formed, the synchronizing cone 121 and the engaging gear 122 on the surface of the second driving gear 120 are integrally formed, the surface of the synchronizing cone 121 is provided with a conical surface 123, the surface of the conical surface 123 is in a frosted rough surface structure, and the inner side of the synchronizer ring 200 is provided with an engaging conical surface matched with the conical surface 123.

Specifically, the step-by-step synchronous transmission is realized by friction between the surface conical surfaces 123 of the first transmission teeth 110 and the second transmission teeth 120 and the conical surface on the inner side of the synchronizer ring 200.

In this embodiment, the tensioning hole 124 on the first driving gear 110 side is sleeved on one end of the synchro-cone pin 400, the other end of the synchro-cone pin 400 is slidably abutted against the engaging gear 122 on the second driving gear 120 side, and the surface of the synchro-cone pin 400 is provided with a sliding seat 420 connected with the surface of the spring ring 310.

Specifically, in the initial state, one end of the synchro-cone pin 400 escapes into the inside of the tension hole 124 at one side of the first transmission gear 110 to limit the position of the synchro-cone pin 400, so that the synchro-cone pin 400 can be accurately inserted into the inside of the tension hole 124 at one side of the second transmission gear 120 during the relative movement of the first transmission gear 110 and the second transmission gear 120.

In this embodiment, the expansion piece 125 and the synchronization cone 121 are integrally formed, and the two sides of the expansion piece 125 are provided with a split gap communicated with the inside of the expansion hole 124.

Specifically, after the synchrocone pin 400 is inserted into the tensioning hole 124, the tensioning sheet 125 can be elastically deformed and expanded outwards, so as to complete the tensioning movement and tightly abut against the inner side of the synchronizer ring 200.

In this embodiment, the cone heads 410 are provided at both ends of the synchrocone pin 400, and the cone heads 410 have a conical structure and end portions have a semi-spherical blunt surface structure.

Specifically, the conical cone head 410 is inserted into the tensioning hole 124 to perform gradual tensioning movement of the tensioning sheet 125 until the synchronous sliding block 320 enters the surface sliding groove of the synchronizer ring 200 to enable the synchronizer ring 200 and the synchronizer ring sleeve 300 to synchronously move, and the conical cone head 410 completely enters the tensioning hole 124 to enable the synchronous cone 121 to tightly abut against the inner side of the synchronizer ring 200.

In this embodiment, the spring ring 310 is a resilient metal ring structure, and the bottom surface of the synchronous slider 320 is provided with a guide groove for restricting the movement of the spring ring 310.

Specifically, during the separation movement of the first gear 110 and the second gear 120, the synchronous taper pin 400 is pulled by the movement limit of the spring ring 310, so that the synchronous taper pin 400 is completely separated from the tensioning hole 124 on the surface of the second gear 120.

The working principle and the using flow of the utility model are as follows:

in the operation of the synchronizer, the second transmission gear 120 is driven by external force to rotate as a power input gear, one end of the synchronous taper pin 400 is inserted into the tension hole 124 at one side of the first transmission gear 110 to keep synchronous static with the first transmission gear 110, one side of the first transmission gear 110 is in sliding abutting joint with the end part of the synchronous taper pin 400 in the rotation process of the second transmission gear 120, the synchronous taper pin 400 keeps static state on the surface of the spring ring 310, the first transmission gear 110 is pushed by the external force to move towards one side of the synchronizer ring 200 and one side of the second transmission gear 120, the synchronizer ring 200 and the synchronizer ring 300 are synchronously moved towards one side of the second transmission gear 120 until a certain friction effect occurs when the inner sides of the synchronous taper 121 and the synchronizer ring 200 are abutted, at this time, the spring ring 310 and the synchronous taper pin 400 synchronously rotate with the first transmission gear 110 until the inner sides of the synchronous taper 121 and the synchronizer ring 200 are completely abutted, the synchronous slider 320 is engaged with the slider groove on the surface of the synchronizer ring 200, one end of the synchronous taper pin 400 enters the tension hole 124 at one side of the second transmission gear 120 to move towards one side of the synchronizer ring 200, the inner sides of the synchronizer ring 200 is pushed by the external force, and the inner sides of the synchronizer ring 120 are pushed by the synchronous taper pin 121 and the inner sides of the synchronizer ring 200 are engaged with the first transmission gear ring 120, and the synchronizer ring 120 is engaged with the first transmission gear ring 120 and the inner sides of the synchronizer ring 125 and the synchronizer ring 100 are engaged with the inner side of the synchronizer ring 120, and the synchronous taper ring and the first transmission gear and the synchronizer ring 120 is engaged with the synchronous; the synchrocone pin 400 moves synchronously with the first gear teeth 110 in the synchronizer release and is released from the first gear teeth 110 under the pulling of the spring ring 310 and one end remains located inside the first gear teeth 110 all the time.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A tension synchronizer, comprising: the novel synchronous device comprises a shaft rod (100), a synchronizer ring (200), a synchronizer ring sleeve (300) and a synchronous taper pin (400) and is characterized in that the synchronizer ring sleeve (200) is movably sleeved on the first transmission tooth (110) and the second transmission tooth (120) on the surface of the shaft rod (100), the first transmission tooth (110) and the second transmission tooth (120) are symmetrically arranged relative to the synchronizer ring sleeve (300), one sides of the first transmission tooth (110) and the second transmission tooth (120) are respectively provided with a synchronous taper (121), the surface of the synchronous taper (121) is provided with a joint tooth (122), the synchronizer ring (200) is movably sleeved on the periphery of the synchronous taper (121), the synchronous ring sleeve (300) is movably sleeved on the outer side of the synchronizer ring (200), a spring ring (310) is arranged on the inner side of the synchronous ring (300), synchronous sliding blocks (320) which are in sliding contact with the inner sides of the synchronous ring sleeve (300) are arranged on the surface of the spring ring (310), the surface of the synchronous taper pin (400) is movably mounted on the surface of the synchronous taper ring (121) is provided with a plurality of expansion holes (124) corresponding to the expansion holes (124).

2. The tension synchronizer according to claim 1, wherein the first transmission gear (110) and the synchronization cone (121) and the engagement gear (122) on the surface of the first transmission gear are of an integrated structure, the synchronization cone (121) and the engagement gear (122) on the surface of the second transmission gear (120) are of an integrated structure, the surface of the synchronization cone (121) is provided with a conical surface (123), the surface of the conical surface (123) is of a frosted rough surface structure, and the inner side of the synchronizer ring (200) is provided with an engagement conical surface matched with the conical surface (123).

3. The tension synchronizer of claim 1, wherein the tension hole (124) on the first transmission gear (110) side is sleeved at one end of the synchronization taper pin (400), the other end of the synchronization taper pin (400) is in sliding contact with the engagement gear (122) on the second transmission gear (120), and a sliding seat (420) connected with the surface of the spring ring (310) is arranged on the surface of the synchronization taper pin (400).

4. The tension synchronizer of claim 1, wherein the tension sheet (125) and the synchronization cone (121) are integrally formed, and gaps communicated with the inside of the tension hole (124) are formed on two sides of the tension sheet (125).

5. The tensioning synchronizer of claim 1, wherein two ends of the synchronizing taper pin (400) are provided with taper heads (410), the taper heads (410) are in a tapered structure and the end parts are in a semi-spherical blunt surface structure.

6. The tension synchronizer of claim 1, wherein the spring ring (310) is of a resilient metal ring structure, and the bottom surface of the synchronizing slider (320) is provided with a guide groove for restricting movement of the spring ring (310).