CN113404790B - New energy automobile synchronizer with self-positioning function - Google Patents

Abstract

The invention discloses a self-positioning new energy automobile synchronizer which comprises a joint sleeve, wherein a lock ring is detachably arranged on one side of the joint sleeve through a spline hub arranged in the joint sleeve, the spline hub is internally and externally arranged with an output shaft through a spline, a plurality of groups of sliding grooves are formed in the outer side of the spline hub, the inner walls of the plurality of sliding grooves are respectively and slidably provided with a positioner, the joint sleeve is externally arranged with the positioner through a positioning groove formed in the joint sleeve, the joint sleeve is internally and slidably arranged with the spline hub through a combination tooth, and the joint sleeve is slidably arranged with an external shifting fork through a conical groove formed in the outer side of the joint sleeve. This new energy automobile synchronizer with from positioning can solve prior art effectively, and when the synchronizer was moving back the shelves state, the clutch collar was drunkenness along the transmission shaft axis direction, can't carry out from positioning, has reduced synchronizer life's problem greatly.

Description

New energy vehicle synchronizer with self-positioning

technical field

The invention relates to the technical field of synchronizers, in particular to a new energy vehicle synchronizer with self-positioning.

Background technique

The synchronizer is the friction plate arranged on the combination sleeve and the gear set. Different from the general friction plate, its friction surface is conical. The function of this group of friction plates is to rub in advance before the straight teeth and the vertical teeth of the disc contact, so as to transfer the energy of the side with the higher rotation speed to the side with the lower rotation speed, so that the side with the lower rotation speed can increase the rotation speed, Synchronize with the speed of the one with the larger speed. This can not only ensure normal shifting, but also play a role in buffering, and the number and material of the tapered friction disc group directly affects the performance of the synchronizer.

When the traditional synchronizer is in the reverse gear state, the engaging sleeve moves axially to the neutral position, the slider on the engaging sleeve moves axially with the engaging sleeve, and there is an axial gap between the slider, the engaging sleeve and the spline hub. Larger gaps are prone to abnormal noise, and long-term wear reduces the service life of the slider. At the same time, the joint sleeve moves along the axis of the transmission shaft, which cannot be self-positioning, which greatly reduces the service life of the synchronizer.

SUMMARY OF THE INVENTION

technical problems solved

In view of the above shortcomings of the prior art, the present invention provides a new energy vehicle synchronizer with self-positioning, which can effectively solve the problem in the prior art that when the synchronizer is in a de-gear state, the engaging sleeve moves along the transmission line. The axis of the shaft moves in the direction of the axis, and self-positioning cannot be performed, which greatly reduces the service life of the synchronizer.

Technical solutions

To achieve the above purpose, the present invention is achieved through the following technical solutions:

The present invention provides a new energy vehicle synchronizer with self-positioning, comprising an engaging sleeve, a lock ring is detachably mounted on one side of the engaging sleeve through a spline hub arranged in the spline hub, and the spline hub The key is installed on the outside of the output shaft, the spline hub is provided with several groups of sliding grooves, and the inner walls of the sliding grooves are all slidably installed with locators, and the engaging sleeve passes through the locating grooves and the locators. For external installation, the engaging sleeve is slidably installed with the outside of the spline hub through the coupling teeth, and the engaging sleeve is slidably installed with the external shift fork through the conical surface groove provided on the outer side of the engaging sleeve;

Wherein, the positioning groove is formed by connecting a circular hole and a bar-shaped groove, and a retractable positioner is used in the positioning groove to closely fit with the outside of the sliding groove.

The two sides of the strip groove close to the edge of the round hole are installed with a reset plate through the rotation of the reset sheet. The reset plate is fixedly installed in the strip groove through the elastic sheet, and the reset plate rotates around the reset sheet to compress the elastic sheet. , play a buffering role for the synchronizer, the inner wall of the strip groove is fixedly installed with a limit block, and the limit block is located on the upper part of the edge of the reset plate, the limit block plays a reset role on the reset plate, and prevents the reset plate from being over-extruded To damage the elastic piece, the adapter sleeve, the splined hub and the lock ring are installed concentrically.

The lock ring is provided with two groups, and the lock rings are respectively arranged on both sides of the spline hub. Several groups of suction cups are fixedly installed on the inner wall of the round hole. The smooth ball and the round hole suction cup are bonded to each other. It is matched with the outer side of the smooth ball, and cooperates with the subsequent elastic force of the four groups of spring groups in the elastic member, so that the smooth ball and the round hole are self-resetting thick and closely fit together. The inner conical surface of the lock ring and the gear ring to be engaged The outer conical surfaces are adapted, and a plurality of the sliding grooves are provided with positioning holes. The positioning holes fix the limiting block to prevent the sliding of the limiting block. The positioning holes fix the limiting block, which increases the stability of the gear connection after shifting and the power transmission. smooth.

Further, the positioner includes a smooth ball, an inner slide rod is fixedly installed at the bottom of the smooth ball, a limit cylinder is sleeved on the outer side of the inner slide rod, a positioning block is fixedly installed at the bottom of the limit cylinder, and the A special-shaped slot is opened in the positioning block.

Further, the outer side of the smooth ball is adapted to the circular hole, the smooth ball is sucked into the suction cup, and a non-slip plate is fixedly installed in the special-shaped groove.

Further, a receiving plate is fixedly installed on the outside of the smooth ball through an inner sliding rod disposed at the bottom thereof, and a lower sliding plate is arranged below the receiving plate.

Further, a limiting block is fixedly installed on the side of the lower slide plate away from the receiving plate through a connecting plate, and the outer side of the limiting block is slidably mounted on the inner wall of the special-shaped groove.

Further, a limiting block is fixedly installed on the side of the lower sliding plate away from the receiving plate through a connecting plate, and the limiting block is located inside the anti-skid plate.

Further, the outside of the limiting block is adapted to the positioning hole, and several groups of elastic members are fixedly installed under the lower slide plate, and a plurality of the elastic members are respectively located outside the limiting block. The force of the spring group, the upper part of the smooth ball is subjected to the pressing force of the reset plate, so that the force in the vertical direction of the positioner is always in a balanced state, reducing the gap between the positioner and the joint sleeve and the lock ring, preventing the positioner and the joint. The sleeve is loose, which greatly reduces the abnormal noise of the positioner, reduces wear, and improves the service life of the positioner.

Further, the plurality of elastic members include claw-shaped plates, the tops of the claw-shaped plates are fixedly installed in the lower sliding plate, and rolling balls are installed in the claw-shaped plates through a set of springs arranged inside the claw-shaped plates.

beneficial effect

Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

(1) In the present invention, a locator, a sliding groove, a strip groove and a locating hole are provided. When the synchronizer shifts gears, the shifting fork moves the engaging sleeve to drive the locator to move together in the direction of the gear to be engaged. The movement drives the smooth balls to slide toward each other, the smooth ball squeezes the reset plate and rotates around the reset sheet, compressing the elastic sheet, and the limit block plays a reset role on the reset plate, preventing the reset plate from being over-extruded and damaging the elastic sheet. , the reset plate rotates around the reset piece, compresses the elastic piece, and buffers the synchronizer. Because the positioning hole fixes the limit block, the gear connection after shifting is increased, and the power transmission is stable. Compared with the traditional single positioning The slider, the bar-shaped groove is engaged with the limiting cylinder on the upper part of the locator, the side of the locating block in the middle of the locator and the sliding groove are mutually limited, and the limiting block at the bottom of the locator moves into the locating hole, and is affected by the locating hole. Positioning, multiple fixings ensure the stability of the positioner, and greatly reduce the situation of the positioner skipping gears.

(2) In the present invention, a reset plate, a limiting block and an elastic member are provided. When the synchronizer is in a de-gear state, the shifting fork toggles the engaging sleeve to drive the positioner to move in the neutral direction, because the positioner is affected by the limiting block at the bottom. , the joint sleeve is relative to the smooth ball, and the circular hole moves in the direction close to the smooth ball. At the same time, the bottom of the smooth ball is subjected to the force of four groups of spring groups in the internal elastic part of the positioner, and the upper part of the smooth ball is subjected to the pressing force of the reset plate, so that the The vertical force of the positioner is always in a balanced state, reducing the gap between the positioner and the joint sleeve and the lock ring, preventing the positioner and the joint sleeve from loosening, greatly reducing the abnormal sound of the positioner, reducing wear, and improving the positioner. service life.

(3) In the present invention, a round hole, a smooth ball, a suction cup and an elastic member are provided. The engaging sleeve moves in the neutral direction, and the smooth ball is squeezed by the reset plate and slowly moves closer to the inside of the round hole. The automatic reset quickly falls into the round hole, and at the same time, under the elastic force of the four groups of spring groups in the elastic member, the limiting block also slides into the special-shaped groove for recovery, the upward elastic force drives the receiving plate, and the smooth ball squeezes the circle through the inner sliding rod. The suction cup in the hole, the smooth ball and the round hole suction cup are bonded to each other, and the ball groove of the round hole is matched with the outer side of the smooth ball, and cooperates with the subsequent elastic force of the four groups of spring groups in the elastic member, so that the smooth ball and the round hole are self-resetting and thick. Closely fit together, the joint sleeve is subjected to multiple forces of the smooth ball in the locator, the joint sleeve rotates smoothly in the axis direction of the neutral transmission shaft, and the joint sleeve is self-positioned with the locator, which greatly improves the service life of the synchronizer.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the three-dimensional structural representation of the present invention;

FIG. 2 is a three-dimensional structural schematic diagram of the mating of the joint sleeve and the spline hub according to the present invention;

Fig. 3 is the structural schematic diagram of the three-dimensional layered structure of the joint sleeve and the spline hub of the present invention;

4 is a schematic structural diagram of a partial cross-section of the neutral block of the engagement sleeve of the present invention;

5 is a schematic structural diagram of a partial cross-section of the shifting sleeve of the present invention;

6 is a schematic structural diagram of a three-dimensional partial cross-section of the neutral position of the positioner according to the present invention;

7 is a schematic structural diagram of a three-dimensional partial cross-section of the positioner shifting according to the present invention.

The numbers in the figure represent: 1-joint sleeve; 11-positioning groove; 111-round hole; 112-strip groove; 12-suction cup; 13-reset plate; 14-limiting block; 2-spline hub; 21 -Sliding groove; 211-Positioning hole; 3-Lock ring; 4-Positioner; 41-Smooth ball; 42-Inner sliding rod; 43-Limiting cylinder; 44-Positioning block; ; 46- receiving plate; 47- lower slide plate; 48- limiting block; 49- elastic piece; 491- claw plate; 492- rolling ball.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The present invention will be further described below in conjunction with the examples.

Example:

1-7, the present invention provides a technical solution: a new energy vehicle synchronizer with self-positioning, including a joint sleeve 1, one side of the joint sleeve 1 is detachable through a spline hub 2 arranged in it The lock ring 3 is installed, the spline hub 2 is installed with the outside of the output shaft through the spline, the spline hub 2 is provided with a number of sets of sliding grooves 21, and the inner walls of the plurality of sliding grooves 21 are slidably installed with a locator 4, a joint sleeve 1 Through the positioning groove 11 opened in its interior and the outside of the positioner 4, the engaging sleeve 1 is slidably installed with the outside of the spline hub 2 through the combination teeth, and the engaging sleeve 1 is connected to the external fork through the conical groove arranged on the outside of the sleeve 1. sliding installation;

The positioning groove 11 is formed by connecting a circular hole 111 and a bar-shaped groove 112 , and the inside of the positioning groove 11 is closely fitted with the outside of the sliding groove 21 through the retractable positioner 4 .

The two sides of the strip groove 112 close to the edge of the round hole 111 are installed with the reset plate 13 through the reset piece. , and the limit block 14 is located on the upper edge of the reset plate 13, and the joint sleeve 1, the spline hub 2 and the lock ring 3 are installed concentrically.

The lock ring 3 is provided with two groups, and the lock ring 3 is arranged on both sides of the spline hub 2 respectively. Several groups of suction cups 12 are fixedly installed on the inner wall of the circular hole 111. The inner cone surface of the lock ring 3 is compatible with the outer cone surface of the gear ring to be engaged. Matching, the plurality of sliding grooves 21 are provided with positioning holes 211 therein.

The positioner 4 includes a smooth ball 41 , an inner sliding rod 42 is fixedly installed at the bottom of the smooth ball 41 , a limiting cylinder 43 is sleeved on the outer side of the inner sliding rod 42 , and a positioning block 44 is fixedly installed at the bottom of the limiting cylinder 43 , and the positioning block 44 is provided with There are special-shaped grooves 45.

The outer side of the smooth ball 41 is adapted to the round hole 111 , and the smooth ball 41 is sucked into the suction cup 12 , and a non-slip plate 451 is fixedly installed in the special-shaped groove 45 .

Outside the smooth ball 41 , a receiving plate 46 is fixedly installed through an inner sliding rod 42 arranged at the bottom thereof, and a lower sliding plate 47 is arranged below the receiving plate 46 .

A limiting block 48 is fixedly installed on the side of the lower sliding plate 47 away from the receiving plate 46 through the connecting plate, and the outer side of the limiting block 48 is slidably mounted on the inner wall of the special-shaped groove 45 .

A limiting block 48 is fixedly installed on the side of the lower sliding plate 47 away from the receiving plate 46 through the connecting plate, and the limiting block 48 is located inside the anti-skid plate 451 .

The outside of the limiting block 48 is matched with the positioning hole 211 , and a plurality of sets of elastic members 49 are fixedly installed under the lower slide plate 47 , and the plurality of elastic members 49 are respectively located outside the limiting block 48 .

The plurality of elastic members 49 include claw-shaped plates 491 . The top of the claw-shaped plates 491 is fixedly installed in the lower sliding plate 47 , and rolling balls 492 are installed in the claw-shaped plates 491 through a spring group arranged inside.

When in use, when shifting gears, the shift handle manipulates the shift fork, and the shift fork moves the engaging sleeve 1 to drive the positioner 4 to move together in the direction of the gear to be engaged. 111 The inner wall squeezes the smooth ball 41 on the positioner 4, the positioning block 44 on the positioner 4 is matched with the sliding groove 21, the smooth ball 41 moves in the lower right direction relative to the joint sleeve 1, and drives the reset plate 13 Rotating around the reset piece, it drives the elastic piece to compress. At the same time, the smooth ball 41 drives the inner sliding rod 42 to slide down in the limiting cylinder 43, and drives the receiving plate 46 to slide downward to squeeze the lower sliding plate 47, and the lower sliding plate 47 drives the limiting block 48 to slide downward. The lower sliding plate 47 squeezes the rolling ball 492 in the elastic member 49, and the smooth ball 41 is subjected to the continuous leftward force of the engaging sleeve 1 to drive the limiting cylinder 43. Move to the left with the positioning block 44, squeeze the lock ring 3 on the left side, and drive the lock ring 3 to closely fit the gear to be engaged with each other. The plate 46, the limiting block 48 and the elastic member 49 slide to the right on the inner wall of the special-shaped groove 45. Compared with the conventional one, when the synchronizer shifts gears, the shifting fork moves the engaging sleeve 1 to drive the positioner 4 to the direction of the gear to be engaged together. The joint sleeve 1 is provided with three sets of positioning grooves 11, and the positioning grooves 11 are formed by connecting the circular holes 111 and the strip grooves 112. The movement of the positioning grooves 11 drives the smooth balls 41 to slide toward each other, and the smooth balls 41 squeeze the reset plate 13. Rotating around the reset sheet to compress the elastic sheet, the limit block 14 plays a reset role on the reset plate 13, preventing the reset plate 13 from being over-extruded and damaging the elastic sheet, and at the same time, the reset plate 13 squeezes the smooth ball 41 downward to drive the inner sliding The rod 42 slides down in the limiting cylinder 43, and drives the receiving plate 46 to slide downward to squeeze the lower sliding plate 47, and the lower sliding plate 47 drives the limiting block 48 to move downward, detaches from the inside of the anti-skid plate 451, and moves into the positioning hole 211, The positioning hole 211 fixes the limiting block 48 to prevent the limiting block 48 from sliding. At the same time, the positioning block 44 moves relative to the lower slide plate 47, the limiting block 48 and the elastic member 49 in the direction of the gear to be engaged. The engaging sleeve 1 drives the positioning block 44 to lock the lock. The ring 3 is squeezed to increase the friction between the lock ring 3 and the gear to be engaged, and to speed up the synchronization of the two. During the extrusion process, the reset plate 13 rotates around the reset sheet, compresses the elastic sheet, and plays a role in the synchronization. Buffering effect, since the positioning hole 211 fixes the limiting block 48 , the gear connection after shifting is increased, and the power transmission is stable. Compared with the traditional single positioning slider, the strip groove 112 is engaged with the limiting cylinder on the upper part of the positioner 4. 43. The side of the positioning block 44 in the middle of the positioner 4 and the sliding groove 21 are mutually limited. At the same time, the limiting block 48 at the bottom of the positioner 4 moves into the positioning hole 211 and is positioned by the positioning hole 211. Multiple fixings ensure the positioner The stability of 4 greatly reduces the situation of the positioner skipping gears;

3 , 4 , 5 and 7 , when the synchronizer is in the de-gear state, the shift fork toggles the engagement sleeve 1 to drive the positioner 4 to move in the neutral direction, because the positioner 4 is limited by the bottom limit block 48 . Acting, the joint sleeve 1 is relative to the smooth ball 41, and the circular hole 111 moves in the direction close to the smooth ball 41. At the same time, the bottom of the smooth ball 41 is subjected to the force of the four groups of spring groups in the internal elastic member 49 of the positioner 4, and the upper part of the smooth ball 41 is affected by The pressing force of the reset plate 13 keeps the vertical force of the positioner 4 in a balanced state, reduces the gap between the positioner 4 and the joint sleeve 1 and the lock ring 3, and prevents the positioner 4 and the joint sleeve 1 from loosening. Greatly reduce the abnormal noise of the positioner 4, reduce the wear and tear, and improve the service life of the positioner 4;

2 , 3 , 4 and 6 , the joint sleeve 1 moves in the neutral direction, and the smooth ball 41 is squeezed by the reset plate 13 and slowly moves toward the inside of the round hole 111 . When approaching the round hole 111 , the smooth ball 41 automatically resets and quickly falls into the round hole 111, and at the same time, it is subjected to the elastic force of the four groups of spring groups in the elastic member 49, and the limiting block 48 also slides into the special-shaped groove 45 for recovery, and the upward elastic force drives the receiving plate 46, through the inner sliding rod 42 Speed up the smooth ball 41 to squeeze the suction cup 12 in the round hole 111, the smooth ball 41 and the suction cup 12 of the round hole 111 are bonded to each other, and at the same time, the ball groove of the round hole 111 is adapted to the outside of the smooth ball 41, and cooperates with the four sets of springs in the elastic member 49 The subsequent elastic force of the group makes the smooth ball 41 and the round hole 111 self-resetting thick and closely fit together, the joint sleeve 1 is subjected to the multiple forces of the smooth ball 41 in the positioner 4, and the joint sleeve 1 is in the direction of the axis of the neutral transmission shaft. It rotates smoothly, and cooperates with the positioner 4 to self-position the joint sleeve 1, which greatly improves the service life of the synchronizer.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. The utility model provides a new energy automobile synchronizer with self-align which characterized in that: the clutch device comprises a joint sleeve (1), wherein a lock ring (3) is detachably mounted on one side of the joint sleeve (1) through a spline hub (2) arranged in the joint sleeve, the spline hub (2) is mounted on the outer side of an output shaft through a spline, a plurality of groups of sliding grooves (21) are formed in the spline hub (2), a positioner (4) is slidably mounted on the inner walls of the sliding grooves (21), the joint sleeve (1) is mounted on the outer side of the positioner (4) through a positioning groove (11) formed in the joint sleeve, a combination tooth is slidably mounted in the joint sleeve (1) and the spline hub (2), and the joint sleeve (1) is slidably mounted with an external shifting fork through a conical groove formed in the outer side of the joint sleeve; the positioning groove (11) is formed by communicating a circular hole (111) with a strip-shaped groove (112), and the inside of the positioning groove (11) is tightly attached to the outer side of the sliding groove (21) through a retractable positioner (4); the positioner (4) comprises a smooth ball (41), an inner sliding rod (42) is fixedly mounted at the bottom of the smooth ball (41), a limiting cylinder (43) is sleeved on the outer side of the inner sliding rod (42), a positioning block (44) is fixedly mounted at the bottom of the limiting cylinder (43), and a special-shaped groove (45) is formed in the positioning block (44); a bearing plate (46) is fixedly arranged outside the smooth ball (41) through an inner sliding rod (42) arranged at the bottom of the smooth ball, and a lower sliding plate (47) is arranged below the bearing plate (46); and a limiting block (48) is fixedly arranged on one side, far away from the bearing plate (46), of the lower sliding plate (47) through a connecting plate, and the outer side of the limiting block (48) is slidably arranged with the inner wall of the special-shaped groove (45).

2. The new energy automobile synchronizer with the self-positioning function according to claim 1, characterized in that: the two sides of the strip-shaped groove (112) close to the edge of the round hole (111) are provided with reset plates (13) in a rotating mode through reset pieces, the reset plates (13) are fixedly installed in the strip-shaped groove (112) through elastic pieces, the inner wall of the strip-shaped groove (112) is fixedly provided with limiting blocks (14), the limiting blocks (14) are located on the upper portion of the edge of the reset plate (13), and the joint sleeve (1), the spline hub (2) and the lock ring (3) are installed coaxially.

3. The new energy automobile synchronizer with the self-positioning function according to claim 1, characterized in that: the gear ring joint is characterized in that the locking rings (3) are provided with two groups, the locking rings (3) are respectively arranged on two sides of the spline hub (2), a plurality of groups of suckers (12) are fixedly mounted on the inner wall of the round hole (111), the inner conical surface of each locking ring (3) is matched with the outer conical surface of a gear ring to be jointed, and positioning holes (211) are formed in the sliding grooves (21).

4. The new energy automobile synchronizer with the self-positioning function according to claim 1, characterized in that: the outer side of the smooth ball (41) is matched with the round hole (111), the smooth ball (41) is attracted with the sucker (12), and the antiskid plate (451) is fixedly arranged in the special-shaped groove (45).

5. The new energy automobile synchronizer with the self-positioning function according to claim 1, characterized in that: and a limiting block (48) is fixedly arranged on one side, far away from the bearing plate (46), of the lower sliding plate (47) through a connecting plate, and the limiting block (48) is positioned in the antiskid plate (451).

6. The new energy automobile synchronizer with the self-positioning function according to claim 5, characterized in that: the limiting block (48) is externally matched with the positioning hole (211), a plurality of groups of elastic pieces (49) are fixedly arranged below the lower sliding plate (47), and the elastic pieces (49) are respectively positioned on the outer sides of the limiting block (48).

7. The new energy automobile synchronizer with the self-positioning function according to claim 6, characterized in that: the elastic elements (49) comprise claw-shaped plates (491), the tops of the claw-shaped plates (491) are fixedly arranged in the lower sliding plate (47), and rolling balls (492) are arranged in the claw-shaped plates (491) in a rolling way through spring sets arranged in the claw-shaped plates (491).

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