CN116181890A - Synchronizer system with good lubrication effect - Google Patents

Abstract

The invention is suitable for the technical field of synchronizers, and provides a synchronizer system with good lubrication effect, which comprises a synchronizer main body, wherein matched combination teeth are arranged at two ends of the synchronizer main body, a gear is arranged at the outer side of each combination tooth, an oil collecting plate is arranged between the combination tooth and the gear at the same side, oil grooves which are arranged in a radial or spiral mode are formed in the oil collecting plate, and a circle of oil holes are formed in the combination teeth. The lubrication structure of the synchronizer system adopts a new lubrication passage thought, can effectively improve the lubrication of the synchronizer in the gearbox, and reduces the ablation of the synchronizer, thereby improving the performance of the synchronizer and prolonging the service lives of the synchronizer and the gearbox.

Description

Synchronizer system with good lubrication effect

Technical Field

The invention belongs to the technical field of synchronizers, and particularly relates to a synchronizer system with a good lubrication effect.

Background

The synchronizer is used as one of the core parts in the gearbox, the overall performance of the synchronizer is directly influenced by the overall performance of the gearbox, and the lubrication effect of a friction system of the synchronizer directly influences the quality and the service life of the synchronizer.

In the failure mode of the synchronizer fed back by each vehicle type in the current market, the ablation of the friction system of the synchronizer accounts for a large part, and the ablation of the friction system has close relation with the lubrication of the synchronizer. Poor synchronizer lubrication will directly lead to synchronizer ablation failure, thereby affecting gearbox performance. At present, a transmission system adopting splash lubrication is adopted for synchronizer lubrication, because a shafting rotates at a high speed, lubricating oil is thrown out along the circumferential direction due to viscosity reduction, and the lubricating oil is high in temperature, so that heat cannot be taken away rapidly, the synchronizer lubrication fails, and ablation is caused.

Disclosure of Invention

In view of the foregoing, an object of the present invention is to provide a solution to the above-mentioned problems.

The invention adopts the following technical scheme:

the synchronizer system with good lubricating effect comprises a synchronizer main body, wherein matched combining teeth are arranged at two ends of the synchronizer main body, a gear is arranged on the outer side of each combining tooth, an oil collecting plate is further arranged between each combining tooth and the gear on the same side, an oil groove which is arranged in a radial or spiral mode is formed in the oil collecting plate, and a circle of oil holes are formed in each combining tooth.

Further, the top of the oil collecting plate upwards forms a U-shaped claw.

Further, the width of the oil groove is larger than the diameter of the oil hole, and the oil groove is formed in the inner side of the periphery of the oil collecting plate or formed in the outer side of the inner ring of the oil collecting plate.

Furthermore, a step is formed on the end face of the inner ring of the gear in a machining mode, a gasket is sleeved on the step in a clearance fit mode, and then the oil collecting plate is sleeved on the step.

Further, the diameter of the outer ring of the oil collecting plate is smaller than the small diameter of the external spline of the gear, the two gears are a first gear and a second gear respectively, and a notch is machined on the outer ring of the oil collecting plate at the side of the second gear.

Further, a round corner for preventing scraping of the steps of the inner ring of the oil collecting plate and the gear is machined at the port of the oil groove.

Further, the diameter of the circle of oil holes on the combining teeth is larger than the diameter of the inner ring of the oil collecting plate and smaller than the diameter of the inner ring of the synchronizing ring of the synchronizer main body.

Further, a tool retracting groove is processed at the bottom of the step of the gear.

The beneficial effects of the invention are as follows: according to the invention, the static oil collecting plate is added in the structure of the traditional synchronizer, so that lubricating oil enters the interior of the synchronizer through the oil holes on the combined teeth under the self gravity and the scraping of the back surfaces of the combined teeth, thereby realizing the purposes of lubricating the synchronizer and taking away the heat generated during the working of the synchronizer, and further improving the problem of the ablation of the synchronizer more efficiently; the lubrication passage structure can reduce the ablation failure rate of the vehicle gearbox in the market, optimize the gearbox structure and even promote the development of the automobile industry; in addition, the oil collecting plate and the gear are limited by the gasket, so that the size of the installation space of the oil collecting plate and the size of the contact area between the back surface of the oil collecting plate and the gasket can be adjusted. The lubrication structure of the synchronizer system adopts a new lubrication passage thought, can effectively improve lubrication of the synchronizer in the gearbox, and reduces ablation of the synchronizer, thereby improving performance of the synchronizer and prolonging service lives of the synchronizer and the gearbox.

Drawings

FIG. 1 is an exploded view of a synchronizer system provided by an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a synchronizer system provided by an embodiment of the present invention;

FIG. 3 is a block diagram of a gear provided by an embodiment of the present invention;

FIG. 4 is a block diagram of two oil collecting plates according to an embodiment of the present invention;

fig. 5 is another form view of the oil collecting plate according to the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In order to illustrate the technical scheme of the invention, the following description is made by specific examples.

As shown in fig. 1 and 2, the synchronizer system with good lubrication effect provided in this embodiment includes a synchronizer main body 5, two ends of the synchronizer main body 5 are provided with matched combination teeth 4, the outer side of each combination tooth 4 is provided with a gear, in the illustration, two gears are a first gear 6 and a second gear 1 respectively, an oil collecting plate 3 is further arranged between the combination teeth 4 and the gears on the same side, an oil groove 3a arranged radially or spirally is formed in the oil collecting plate 3, and a circle of oil holes 4a are formed in the combination teeth 4. As a specific installation mode, referring to fig. 3, a step 1a is formed on the end face of the inner ring of the gear, a gasket 2 is sleeved on the step 1a in a clearance fit manner, and then an oil collecting plate 3 is sleeved on the step 1 a.

In this structure, processing has the step on the inner circle terminal surface of gear, and packing ring 2 and oil collecting plate 3 cover are on the gear step, and the packing ring inner circle and gear step outer lane face clearance fit can relative rotation. Meanwhile, the diameter of the outer ring of the oil collecting plate 3 is slightly smaller than the small diameter of the external spline of the gear, so that the oil collecting plate is prevented from interfering with other parts in assembly. As shown in fig. 4, a notch 3d is formed in the outer ring of the oil collecting plate on the side of the second gear to allow the intermediate shaft gear engaged with the second gear 1 to be separated. .

The oil collecting plate 3 is provided with a plurality of oil grooves 3a, the width of each oil groove is larger than the diameter of the oil hole 4a on the combining tooth, the oil grooves 3a are formed in the periphery of the oil collecting plate or in the periphery of the oil collecting plate, and the two specific oil groove setting modes are respectively shown in fig. 4 and 5. And a round corner 3c for preventing the inner ring of the oil collecting plate 3 from scraping with the step 1a of the gear is processed at the port position of the oil groove 3 a. The U-shaped claw 3b is processed at the top of the oil collecting plate, and is clamped on a shifting fork shaft of the gearbox during installation, so that the oil collecting plate is prevented from rotating, and the oil collecting plate 3 is ensured to be static relative to the gearbox shell. The combination teeth 4 are connected with the gear through splines, a circle of oil holes 4a are formed in the combination teeth, the diameter of a circle where the oil holes are located is slightly larger than the diameter of an inner ring of the oil collecting plate, and is slightly smaller than the diameter of the inner ring of the synchronizing ring of the synchronizer main body, so that lubricating oil can enter the synchronizer main body through the oil holes 4a in the combination teeth under scraping of the oil grooves.

When the gear is in specific work, the gears on two sides rotate at different rotation speeds, and the two combining teeth 4 are in spline connection with the gears on the same side and rotate along with the gears at the same rotation speed. The gear floating sleeve (for example, a needle bearing is adopted) is arranged on the transmission shaft, the synchronizer main body 5 is in spline connection with the transmission shaft, the synchronizer main body and the transmission shaft are integrated, and the gear sleeve of the outer ring of the synchronizer main body is hung into different gears on the left side and the right side through the shifting fork shaft, so that the transmission shaft obtains the rotating speed of the first gear 6 or the second gear 1. In the working process, the U-shaped claw 3b on the oil collecting plate 3 is clamped on the shifting fork shaft, the oil collecting plate is prevented from rotating along with the transmission shaft, the static state of the oil collecting plate relative to the transmission housing is guaranteed, and in such a structure, lubricating oil splashed on the oil collecting plate 3 can enter the synchronizer main body 5 through the oil hole 4a on the combining tooth under the scraping of the self gravity and the same side of the oil collecting plate when the combining tooth 4 moves, so that a friction system of the synchronizer is lubricated, heat generated during the working process of the friction system is taken away, and the failure risk of ablation of the synchronizer is effectively reduced.

According to the invention, in the traditional synchronizer structure, the oil collecting plate 3 for improving the lubrication oil way is additionally arranged at the axial position of the gear and the combined teeth, meanwhile, the structure of the gears at two sides of the synchronizer is improved, steps are processed on the end face of the gear, the depth of the processed steps is larger than the thickness of the oil collecting plate, the axial dimension is adjusted between the end face of the steps and the oil collecting plate by adopting the gasket 2, and the inner ring of the gasket is matched with the outer circle of the gear steps and a certain gap is reserved. In addition, the bottom of the gear step is provided with a tool retracting groove, so that the end face of the gasket and the bottom face 1b of the step can be effectively attached. The oil holes 4a are formed in the combining teeth 4, and the diameter of a circle of oil holes is smaller than that of the inner circle of the inner ring of the synchronizer, so that lubricating oil can smoothly enter the synchronizer through the oil holes, and the conical surface can be effectively lubricated. The diameter of the outer ring of the oil collecting plate 3 is slightly smaller than the small diameter of the outer teeth of the gear, oil is convenient to splash onto the oil collecting plate, a plurality of radial or spiral oil grooves 3a are formed in the oil collecting plate, the width of each oil groove is larger than the diameter of each oil hole 4a, the diameter of the inner hole of the oil collecting plate is smaller than the diameter of a circle where the oil holes are located, and U-shaped claws 3b extending from the top of the oil collecting plate are used for clamping the oil collecting plate on a shifting fork shaft and preventing the oil collecting plate from rotating along with a shaft system. And a round corner 3c is arranged at the port of the oil tank of the oil collecting plate which is arranged inwards, so that scraping between the round corner and the outer circular surface of the step machined by the gear is prevented.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (8)

1. The utility model provides a effectual synchronizer system of lubrication, includes the synchronizer main part, there is the bonding tooth of matching at synchronizer main part both ends, and the outside of every bonding tooth all has a gear, its characterized in that, still be equipped with the oil collecting plate between bonding tooth and the homonymy gear, open on the oil collecting plate has radial or spiral oil groove of arranging, still open the round oilhole on the bonding tooth.

2. The lubricated synchronizer system recited in claim 1, wherein the top of said oil collection plate is formed with a U-shaped claw upward.

3. The lubricated synchronizer system recited in claim 2, wherein said oil grooves have a width greater than the diameter of said oil holes, said oil grooves opening inwardly from the outer periphery of said oil collection plate or from the inner periphery of said oil collection plate.

4. The synchronizer system with good lubrication effect according to claim 3, wherein the end face of the inner ring of the gear is machined to form a step, a gasket is sleeved on the step in a clearance fit manner, and then the oil collecting plate is sleeved on the step.

5. The synchronizer system with good lubrication effect according to claim 4, wherein the diameter of the outer ring of the oil collecting plate is smaller than the small diameter of the external spline of the gear, and the two gears are a first gear and a second gear respectively, wherein a notch is processed on the outer ring of the oil collecting plate on the side of the second gear.

6. The lubricated synchronizer system with good lubrication according to claim 5, wherein the port location of the oil sump is machined with a fillet for preventing scraping of the steps of the inner race of the oil collection plate and the gear.

7. The well-lubricated synchronizer system according to claim 6, wherein the diameter of the circle of oil holes in the mating teeth is greater than the diameter of the inner ring of the oil collection plate and less than the diameter of the inner ring of the synchronizer body.

8. The lubricated synchronizer system with a good lubricating effect according to claim 4, wherein the stepped bottom of the gear is machined with a relief groove.

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