Automobile transmission

Abstract

The invention relates to the technical field of transmissions, in particular to an automobile transmission which comprises a shell, a clutch, a main shaft, an auxiliary shaft, a reversing shaft, an output shaft and a control device. A clutch is installed at the front end of the shell, a main shaft is installed at the rear end of the clutch, an auxiliary shaft is installed below the shell, the main shaft is connected with the auxiliary shaft, a reversing shaft is installed below the rear end of the shell, an output shaft is installed above the rear end of the shell, and a control device is further installed in the shell. The lubricating mechanism is arranged at the tail end of the main shaft and on the output shaft and is connected with the control device; when the lubricating mechanism moves through the shifting fork, the lubricating assembly located in the spline determines whether to slide or not according to the friction force between the sliding plate and the output shaft, and when the sliding plate slides, the sliding block is driven to move in the limiting groove, so that the sliding block relieves limitation on the through groove; and the spline on the output shaft is lubricated by lubricating oil in the through groove through the limiting groove, so that gear shifting is smoother.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transmission, in particular to a car transmission. BACKGROUND

[0002] The car transmission is used for adjusting the rotating speed, and is usually divided into manual shift and automatic shift according to different shift modes. The biggest difference between the manual shift and the automatic shift is that the clutch needs to be stepped down during each shift. Therefore, some novice drivers generally prefer the automatic shift. However, for skilled drivers, the manual shift can provide better driving experience than the automatic shift, and the structure of the manual shift is simple, and has better stability and safety. Some drivers often consider these aspects when choosing.

[0003] In order to improve the driving experience and increase the service life of the transmission, the manual shift transmission usually adds lubricating oil in the transmission, and the lubricating oil is moved by the gear when the gear rotates, so that the oil lubricates the gear in the transmission. However, during the shift process, the push rod needs to push the engaging sleeve to fix the loose gear on the rotating shaft, and the loose gear will rotate under the drive of the gear on the countershaft. This makes it easy to cause tooth jamming during the shift, affecting the shift effect and feel.

[0004] The existing transmission designs the engaging gear as an upper sharp and lower flat structure, so that the gear does not jam during the shift, and each shift can be successfully connected. However, during the shift, the engaging gear is usually fixed on the gear, which makes the two connected engaging teeth not completely staggered during the shift, causing the shift to be stuck. Although this jam does not affect the shift effect, it is uncomfortable for drivers who pursue driving experience every time they shift. Moreover, the lubricating oil in the existing transmission is difficult to lubricate the spline, and the height of the lubricating oil cannot overflow the rotating shaft, otherwise it will affect the rotation of the rotating shaft. This makes the engaging ring move on the spline of the main shaft due to lack of lubrication, thereby increasing the friction with the main shaft, making the driver feel stuck during the shift, affecting the shift feel.

[0005] In view of the above situation, in order to overcome the above technical problems, the present application designs a car transmission, which solves the above technical problems. SUMMARY

[0006] The technical purpose to be achieved by the present application is that the existing transmission is easy to jam during the shift when the engaging sleeve fixes the gear, and the main shaft lacks lubrication, which also causes the driver to feel stuck during the shift. Therefore, the shift process is smoother, and the driving experience of the driver is improved.

[0007] In order to achieve the above technical purpose, the present application provides the following technical scheme:

[0008] A kind of automobile transmission, including shell, clutch, main shaft, auxiliary shaft, reversing shaft, output shaft and operating device;The front end of the shell is equipped with clutch, the rear end of the clutch is equipped with main shaft, the lower of shell is equipped with auxiliary shaft, and main shaft is connected with auxiliary shaft, the rear end of shell is equipped with reversing shaft below, the rear end of shell is equipped with output shaft above, the inside of shell is also equipped with operating device;It further includes lubricating mechanism, the lubricating mechanism is installed on the end of main shaft and output shaft, and is connected with operating device;Lubricating mechanism is moved on output shaft by engaging sleeve driven by yoke, and is clamped with the clamping assembly on one side, the clamping assembly is moved in small range in clamping cavity by the engagement tooth of annular distribution on engaging ring, and the position of the distribution of engagement tooth is changed, after the distribution position is changed, multiple engagement tooth is connected with engaging sleeve.

[0009] The lubricating mechanism includes: clamping assembly, engaging sleeve, yoke, scraper, lubricating assembly and oil storage box;The clamping assembly is installed on the end of main shaft and the side of non-fixed gear on output shaft, the engaging sleeve is installed on the spline on output shaft, and is connected with two clamping assemblies when sliding, one end of the yoke is connected with the engaging sleeve, the other end is connected with the operating device, the scraper is annularly arranged on the inner wall of the engaging sleeve, the lubricating assembly is annularly arranged in the inside of the engaging sleeve and connected with the output shaft, and the oil storage box is installed on the shell and connected with the yoke by pipeline.

[0010] The oil storage box is placed with lubricating oil, which can enter the inside of the yoke through the pipeline, the clamping assembly is fixedly installed on the gear, and the clamping assembly is coaxial with the engaging sleeve, and the yoke is controlled by the operating device.

[0011] The clamping assembly includes: engaging ring and engagement tooth;Multiple engagement teeth are annularly arranged in the inside of the engaging ring, and sliding space is left between the engagement teeth, and the axis of the engagement tooth passes through the center of the engaging ring.

[0012] The engagement tooth can move autonomously in small range in the inside of the engaging ring, so the distance between the engagement teeth on the engaging ring may be different when not connected with the engaging sleeve,

[0013] The inside of the engaging ring is provided with "U" shaped clamping cavity, which can improve the contact area of the engagement tooth, improve the stability of the engagement tooth, so that the engagement tooth is not easy to jam when moving, and multiple baffles are uniformly arranged in the inside of the clamping cavity, the interval distance between two baffles is within 1.5 times of the width of the engagement tooth on the same center, the interval distance between baffles cannot exceed 1.5 times of the width of the engagement tooth, and the closer to 1.5 times of the interval distance, the smoother the connecting of the engaging sleeve and the engaging head, and the sliding groove is arranged on the two sides of the clamping cavity.

[0014] The sliding groove on both sides of the engaging cavity can make the axis of the engaging tooth always point to the center of the circle when the engaging tooth rotates around the center, so that the connecting surface of the engaging tooth and the engaging sleeve always remains parallel, and the thickness of the baffle can drive the engaging ring to rotate.

[0015] The upper part of the engaging tooth is triangular structure and the lower part is rectangular structure, the triangular structure can provide guidance when connected with the engaging sleeve, and the rectangular structure can provide more contact area with the engaging sleeve, the two sides of the lower end of the engaging tooth are provided with a stand, and the center of the lower part of the engaging tooth is provided with a shaking base, the two sides of the shaking base are provided with a plane parallel to the contact baffle, so that the contact area between the shaking base and the baffle is increased when they contact, and the service life of the baffle is improved.

[0016] When the engaging tooth is connected with the engaging sleeve, the rectangular structure below the engaging tooth is attached to the engaging sleeve, and the shaking base below the engaging tooth is in contact with the baffle.

[0017] The engaging sleeve is provided with an annular engaging groove, a plurality of through grooves are arranged in the bottom of the engaging groove in an annular array, a plurality of clamping teeth are arranged around the center on both sides of the engaging sleeve, the included angle between the axes of adjacent clamping teeth is consistent with the included angle between the axes of adjacent baffles, the clamping teeth are engaged with the two adjacent engaging teeth, a limiting tooth is arranged below the through groove, and a circular limiting groove is arranged in the limiting tooth.

[0018] The distance between the two adjacent clamping teeth is just enough to put in an engaging tooth, so that the stress of the clamping tooth is uniform, and more thrust can be provided to the engaging tooth when rotating, the limiting tooth is engaged with the spline on the output shaft, and the output shaft is driven to rotate by the limiting tooth.

[0019] The inner diameter of the shift fork is consistent with the outer diameter of the engaging sleeve, so that the engaging sleeve can rotate in the inside of the shift fork, an oil pipe is mounted on one side of the shift fork, a drainage groove is arranged in the inside of the shift fork, an annular pushing plate is arranged on the inner wall of the shift fork, the pushing plate and the bottom of the engaging groove have a rotating gap, and a straight groove is arranged on both sides of the pushing plate and the inner wall of the shift fork in a connected and closed manner, so as to prevent the loss of lubricating oil and make the lubricating oil fully lubricate the connecting surface of the shift fork and the engaging sleeve.

[0020] The oil pipe is connected with the oil storage tank through a pipeline, so that the lubricating oil can enter the inside of the shift fork through the oil pipe, thereby lubricating the lubricating mechanism, the shift fork is made of wear-resistant material, and a proper rotating gap is left between the shift fork and the engaging sleeve.

[0021] The scraper is mounted on one side of the rear end of the through groove in the rotating direction, so that the scraper can actively input the lubricating oil into the through groove when rotating, the top end of the scraper is an arc surface coaxial with the engaging sleeve, which prevents the scraper from damaging the shift fork when rotating and reduces the sliding resistance of the shift fork.

[0022] The drainage direction of the scraper is towards the through groove, and the scraper functions as a water pump during rotation, so that the lubricating oil with high viscosity can also quickly enter the through groove, and the centrifugal force during rapid rotation is prevented from causing the lubricating oil to fail to enter the through groove.

[0023] The lubricating assembly comprises a sliding plate and a spring, the sliding plate is installed in the limiting groove, the middle part of the sliding plate is located directly below the through groove, the two ends of the sliding plate are clamped with the spring, and the spring is installed in the limiting groove; when lubrication is required, the spring can push the sliding plate to move, and the distance between the sliding plate and the output shaft is kept at a distance at which the sliding plate does not slide when lubrication is lacking.

[0024] When the output shaft is lubricated, the sliding plate moves along with the lubricating assembly on the output shaft; when the output shaft lacks lubrication, the sliding plate is pushed to move due to the friction with the output shaft when the lubricating assembly moves on the output shaft.

[0025] The sliding plate is arc-shaped and is attached to the bottom of the output shaft, and one end of the sliding plate is provided with a cylindrical sliding block, the sliding block is attached to the limiting groove, the length of the sliding block is 3 times the diameter of the through groove, and the sliding block has a surplus to prevent the sliding block from being slightly moved to contact the limiting groove and to prevent the output shaft from being excessively lubricated.

[0026] The length of the sliding block should not be too short, so that slight movement of the sliding block does not cause the lubricating oil to flow out of the through groove and cause excessive lubrication, and the length of the sliding block should not be too long, so that the friction of the output shaft cannot push the spring to compress.

[0027] The beneficial effects of the present application are as follows:

[0028] 1. The present application sets up a lubricating mechanism, which solves the problem of inaccurate connection between the clamping teeth and the engagement teeth during gear shifting, which causes jamming, and the problem of difficulty in lubricating the spline on the output shaft, which causes a sense of delay during gear shifting and affects the driving experience of the driver, and the lubricating mechanism makes the gear shifting process smoother, thereby increasing the driving experience.

[0029] 2. The present application sets up a lubricating assembly, which solves the problem of difficulty in lubricating the spline below the engagement sleeve with lubricating oil, which causes increased friction between the spline and the engagement sleeve during sliding, and the lubricating assembly makes the spline below the engagement sleeve also be lubricated, thereby increasing the service life of the engagement sleeve.

[0030] 3. The present application sets up a clamping assembly, which solves the problem of difficulty in moving the engagement teeth fixed on the gear, which causes excessive wear between the engagement sleeve and the engagement teeth during clamping, and the clamping assembly makes the engagement teeth and the engagement sleeve be able to actively adjust the clamping position during clamping, thereby reducing the wear between the engagement teeth and the engagement sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

[0032] The above and other aspects of the present application will now be described, by way of example only, with reference to the accompanying drawings in which:

[0033] Figure 1 is a schematic diagram of the overall structure of the present application;

[0034] Figure 2 is a sectional view of point A of the present application;

[0035] Figure 3 is a schematic diagram of the overall structure of the engagement assembly of the present application;

[0036] Figure 4 is a sectional view of the engagement assembly of the present application;

[0037] Figure 5 is a schematic diagram of the connection relationship between the engagement tooth and the engagement sleeve of the present application;

[0038] Figure 6 is a schematic diagram of the connection relationship between the shift fork and the engagement sleeve of the present application;

[0039] Figure 7 is a sectional view of the lubricating assembly of the present application;

[0040] Figure 8 is a schematic diagram of the structure of the shift fork of the present application;

[0041] Figure 9 is a schematic diagram of the operation of the scraper of the present application;

[0042] Figure 10 is a schematic diagram of the operation of the lubricating assembly of the present application.

[0043] In the drawings: 1, housing; 2, clutch; 3, main shaft; 4, secondary shaft; 5, reversing shaft; 6, output shaft; 7, control device; 8, lubricating mechanism; 81, engagement assembly; 811, engagement ring; 8111, engagement cavity; 8112, baffle; 8113, sliding groove; 812, engagement tooth; 8121, guide column; 8122, shaking base; 82, engagement sleeve; 821, engagement groove; 822, through groove; 823, clamping tooth; 824, limiting tooth; 825, limiting groove; 83, shift fork; 831, oil pipe; 832, drainage groove; 833, shifting plate; 834, right-angle groove; 84, scraper; 85, lubricating assembly; 851, sliding plate; 8511, sliding block; 852, spring; 86, oil storage box. DETAILED DESCRIPTION

[0044] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0045] As shown in Figures 1 to 10 An automobile transmission, comprising a housing 1, a clutch 2, a main shaft 3, an auxiliary shaft 4, a reversing shaft 5, an output shaft 6 and a control device 7; the front end of the housing 1 is provided with the clutch 2, the rear end of the clutch 2 is provided with the main shaft 3, the lower part of the housing 1 is provided with the auxiliary shaft 4, and the main shaft 3 is connected with the auxiliary shaft 4, the lower rear end of the housing 1 is provided with the reversing shaft 5, the upper rear end of the housing 1 is provided with the output shaft 6, and the inside of the housing 1 is further provided with the control device 7; further comprising a lubricating mechanism 8, which is installed at the end of the main shaft 3 and the output shaft 6, and is connected with the control device 7; the lubricating mechanism 8 drives the engaging sleeve 82 to move on the output shaft 6 through the yoke 83, and then is clamped with the clamping assembly 81 on one side, the clamping assembly 81 changes the distribution position of the engaging teeth 812 through a small range movement of the engaging teeth 812 in the clamping cavity 8111 which are distributed in a ring shape on the engaging ring 811, and the plurality of engaging teeth 812 after changing the distribution position are connected with the engaging sleeve 82.

[0046] The clutch 2, the transmission structure and the control device 7 in the application all adopt the prior art, so they will not be explained here, the lubricating mechanism 8 in the application can reduce the jamming during gear shifting through the clamping of the clamping assembly 81 and the engaging sleeve 82, improve the gear shifting feeling, and also can improve the service life of the engaging sleeve 82, compared with the existing automobile transmission, the application can reduce the jamming during gear shifting and lubricate the spline on the output shaft 6.

[0047] As shown in Figures 2 to 10The lubricating mechanism 8 includes a clamping assembly 81, an engagement sleeve 82, a yoke 83, a scraper 84, a lubricating assembly 85 and an oil storage box 86. The clamping assembly 81 is installed on the end of the main shaft 3 and one side of the non-fixed gear on the output shaft 6. The loose gear is fixed on the output shaft 6 by the cooperation of the engagement sleeve 82 and the clamping assembly 81, and then the rotation of the secondary shaft 4 is transmitted to the output shaft 6, so that the output shaft 8 can rotate. The engagement sleeve 82 is installed on the spline on the output shaft 6. The engagement sleeve 82 drives the output shaft 6 to rotate through the spline, and is coaxially connected with the clamping assembly 81 on both sides when sliding, so that the engagement sleeve 82 fixes the loose gear through the clamping assembly 81. One end of the yoke 83 is connected with the engagement sleeve 82, and the other end is connected with the control device 7. The control device 7 controls the movement of the engagement sleeve 82 on the output shaft 6 through the yoke 83. The scraper 84 is annularly arranged on the inner wall of the engagement sleeve 82, so that the scraper 84 rotates around the output shaft 6 when the engagement sleeve 82 rotates. The lubricating assembly 85 is annularly arranged inside the engagement sleeve 82, which lubricates the inside of the spline of the output shaft 6 and is connected with the output shaft 6. The oil storage box 86 is installed on the shell 1 and connected with the yoke 83 through the pipeline.

[0048] The control mechanism 7 drives the engagement sleeve 82 to move on the output shaft 6 through the yoke 83. The engagement sleeve 82 is connected with the clamping assembly 81 fixed on one end of the gear after moving. The engagement sleeve 82 is connected with the engagement teeth 812 on the clamping assembly 81 through the annularly arranged multiple clamping teeth 823. Each individual engagement tooth 812 can rotate around the engagement ring 811 within a certain range during the clamping process, so that the engagement teeth are automatically adjusted to the position easy to clamp during the connection of the engagement sleeve 82 and the clamping assembly 81, so that there is no jamming feeling during gear shifting, thereby improving the feeling of the driver during gear shifting.

[0049] The oil storage box 86 makes the lubricating oil enter the inside of the yoke 83 through the pipeline, and then the drainage groove 832 in the inside of the yoke 83 sends the lubricating oil into the engagement groove 821 in the inside of the engagement sleeve 82, thereby reducing the friction of the yoke 83 when the engagement sleeve 82 rotates in the yoke 83, thereby improving the service life of the yoke 83 and the engagement sleeve 82. The multiple scrapers 84 arranged annularly on the engagement sleeve 82 are driven to rotate with the engagement sleeve 82 when the engagement sleeve 82 rotates, so that the scrapers 84 can drive the lubricating oil in the engagement groove 821 to move when rotating, and make the lubricating oil enter the through groove 822 in a certain direction, thereby reducing the influence of centrifugal force on the lubricating oil when the engagement sleeve 82 rotates, thereby improving the practicability of the lubricating mechanism 8.

[0050] The lubricating assembly 85 is annularly distributed in the spline on the output shaft 6, so that the lubricating oil in the through groove 822 enters the spline through the lubricating assembly 85, and then lubricates all the splines, reduces the friction between the engagement sleeve 82 and the spline, improves the service life of the spline and the engagement sleeve 82, reduces the resistance during shifting, and at the same time, the lubricating assembly 85 controls the lubrication degree of the spline, prevents the lubrication from being too much to affect the movement of the engagement sleeve 82 on the spline, so that the engagement sleeve 82 always maintains the best sliding state when moving on the spline, thereby ensuring the stability of the lubricating mechanism 8.

[0051] As shown in Figures 2 to 5 The engagement assembly 81 includes an engagement ring 811 and engagement teeth 812, and a plurality of engagement teeth 812 are annularly arranged on the inside of the engagement ring 811 and used for clamping the engagement sleeve 82. The engagement teeth 812 are provided with a sliding gap therebetween, so that the individual engagement teeth 812 can move within a certain range, thereby enabling the engagement teeth 812 to automatically adjust the position to adapt to the clamping of the engagement sleeve 82 when the engagement sleeve 82 is clamped with the engagement teeth 812. The axes of the engagement teeth 812 all pass through the center of the engagement ring 811, so that the engagement teeth 812 do not rotate by themselves while moving, thereby avoiding errors that may occur during the connection of the engagement sleeve 82 and the engagement teeth 812.

[0052] The annular arrangement of the engagement teeth 812 on the engagement ring 811 enables the engagement teeth 812 to uniformly provide the pushing force to the engagement sleeve 82 through the arrayed engagement teeth 812 when the engagement ring 811 rotates after the engagement teeth 812 are clamped with the engagement sleeve 82, thereby making the force acting on the engagement sleeve 82 more uniform and stable during rotation, so that the lubricating mechanism 8 is more stable during power transmission. The sliding gap between the engagement teeth 812 enables the engagement teeth 812 to automatically adjust the most suitable position for clamping with the clamping teeth 823 during the clamping process, thereby reducing the vibration during clamping, protecting the integrity of the engagement teeth 812, improving the service life of the engagement sleeve 82, and improving the feel during shifting.

[0053] During the clamping process of the engagement teeth 812 and the clamping teeth 823, the clamping teeth 823 push the engagement teeth 812 to rotate within a certain range of the engagement ring 82, thereby adjusting the clamping position of the engagement teeth 812 and the clamping teeth 823, avoiding the vibration generated when the clamping teeth 823 are clamped with the engagement teeth 812, and making the clamping of the engagement assembly 81 and the engagement sleeve 82 more stable, thereby improving the stability of the lubricating mechanism 8 during shifting.

[0054] As shown in Figures 2 to 5As shown, the inside of the engagement ring 811 is provided with a "U"-shaped clamping cavity 8111, which can increase the contact area of the engagement teeth 812, improve the stability of the engagement teeth 812, so that the engagement teeth 812 are not easy to jam when moving. A plurality of baffles 8112 are uniformly installed inside the clamping cavity 8111, the spacing distance between two baffles 8112 is within 1.5 times the width of the engagement teeth 812 at the same center distance, the spacing distance between the baffles 8112 cannot exceed 1.5 times the width of the engagement teeth 812, and the closer to the 1.5 times spacing distance, the smoother the connection between the engagement sleeve 82 and the engagement head. Ring-shaped sliding grooves 8113 are provided on both sides of the clamping cavity 8111, which can prevent the engagement teeth 812 from rotating after cooperating with the engagement teeth 812, thereby avoiding errors during connection.

[0055] The bottom of the "U"-shaped clamping cavity 8111 provided by the engagement ring 811 provides a path for the movement of the engagement teeth 812, so that the engagement teeth 812 can move within the set path. The upper part of the "U"-shaped clamping cavity 8111 provides support for the engagement teeth 812 when moving, so that the engagement teeth 812 remain stable during movement, reducing the probability of the engagement teeth 812 being jammed, thereby ensuring the safety during the connection process of the clamping teeth 823 and the engagement teeth 812.

[0056] The spacing distance between the two baffles 8112 is within 1.5 times the width of the engagement teeth, so that the maximum path that the engagement teeth 812 can move in the clamping cavity 8111 is half the width of the engagement teeth 812. In this way, when the clamping teeth 823 and the engagement teeth 812 are clamped, all the engagement teeth 812 on the engagement ring 811 adjust the clamping position in the same direction, so that the contact surface between the engagement teeth 812 and the baffles 8112 remains consistent, and the thrust provided by the engagement teeth 812 to the engagement sleeve 82 through the baffles 8112 remains uniform and stable. In this way, the engagement sleeve 82 remains stable during rotation, thereby improving the stability of the lubricating mechanism 8.

[0057] The engagement sleeve 82 is clamped with the clamping assembly 81 through the clamping teeth 823. During the clamping process, the clamping teeth 823 push the engagement teeth 812 to rotate in the clamping cavity 8111, and the rotation range of the engagement teeth 812 is between two adjacent baffles 8112. In this way, the clamping teeth 823 and the engagement teeth 812 are always clamped at the best position during clamping, thereby reducing vibration during clamping and making the clamping process smoother, thereby protecting the integrity of the engagement teeth 812 and the clamping teeth 823 and improving the service life of the clamping assembly 81.

[0058] As Figures 2 to 5As shown, the upper part of the engagement tooth 812 is triangular structure and the lower part is rectangular structure, the triangular structure makes the engagement tooth 812 provide guidance when connected with the engagement sleeve 82, and the rectangular structure of the lower part can provide more contact area with the engagement sleeve 82, so that the engagement tooth 812 is more stable when driving the engagement sleeve 82 to rotate, the two sides of the lower end of the engagement tooth 812 are provided with a stand, and the center of the lower part of the engagement tooth 812 is provided with a shaking base 8122, and the two sides of the shaking base 8122 are provided with a plane parallel to the contact baffle 8112, so that the shaking base 8122 increases the contact area with the baffle 8112 when contacting with the baffle 8112, and the service life of the baffle 8112 is improved.

[0059] The triangular structure of the upper part of the engagement tooth 812 provides guidance for the movement of the engagement tooth 812, so that when the clamping tooth 823 is clamped with the engagement tooth 812, the engagement tooth 812 can be pushed by the clamping tooth 823 to move in the clamping cavity 8111, thereby automatically adjusting the clamping position, reducing the vibration in the clamping process, making the lubricating mechanism 8 more smooth during gear shifting, thereby reducing the vibration during gear shifting; the rectangular structure of the lower part of the engagement tooth 812 can provide more contact area for the engagement tooth 812 and the clamping tooth 823 after being clamped with the clamping tooth 823, so that more thrust can be borne when the engagement tooth 812 pushes the clamping tooth 823, thereby improving the transmission upper limit of the lubricating mechanism 8; the plane parallel to the baffle 8112 of the shaking base 8122 makes the engagement ring 811 rotate, and the engagement ring 811 drives the engagement tooth 812 to move through the baffle 8112, and the plane parallel to the baffle 8112 of the shaking base 8122 can increase the contact area between the shaking base 8122 and the baffle 8112, thereby dispersing the thrust of the baffle 8112 and protecting the baffle 8112, and improving the transmission upper limit of the thrust of the baffle 8112, thereby increasing the transmission upper limit of the thrust of the clamping assembly 81.

[0060] As shown in the figure, Figures 5 to 10 As shown, the engagement sleeve 82 is provided with an annular engagement groove 821, the shift fork 83 drives the engagement sleeve 82 to move through the engagement groove 821, the bottom of the engagement groove 821 is provided with a plurality of through grooves 822 in annular array, the through grooves 822 are used for lubricating oil to pass into the lubricating assembly 85, and a plurality of clamping teeth 823 are arranged around the center on both sides of the engagement sleeve 82, the clamping teeth 823 are used for clamping with the engagement tooth 812, the included angle between the axes of adjacent clamping teeth 823 is consistent with the included angle between the axes of adjacent baffles 8112, so that when the clamping tooth 823 is clamped with the engagement tooth 812, the engagement tooth 812 will only move within the range of the baffle 8112, and the clamping tooth 823 is engaged with the adjacent two engagement teeth 812, and the limit tooth 824 is arranged below the through groove 822, and a circular limit groove 825 is arranged in the limit tooth 824.

[0061] The bottom annular array of the engagement groove 821 is provided with a plurality of through grooves 822, which can enable the lubricating oil to enter the lubricating assembly 85 from multiple directions and then be released into the corresponding spline, so that the lubricating oil can comprehensively lubricate the spline from multiple directions and multiple angles, thereby improving the comprehensiveness of the lubricating mechanism 8; when the multiple clamping teeth 823 provided around the center of the engagement sleeve 82 are clamped with the engagement teeth 812, the engagement teeth 812 can be pushed to rotate around the center at the same time, thereby improving the clamping efficiency of the engagement sleeve 82 and the clamping assembly 81, and further improving the shifting speed.

[0062] The shifting fork 83 drives the engagement sleeve 82 to move through the engagement groove 821, the engagement sleeve 82 drives the limiting teeth 824 to move on the spline of the output shaft 6 after moving, and the engagement sleeve 82 is engaged with the clamping assembly 81 through the clamping teeth 823 after moving, so that the output shaft 6 is fixedly connected with the clamping assembly 81 through the engagement sleeve 82, and the clamping assembly 81 can drive the output shaft 6 to rotate through the engagement sleeve 82.

[0063] As shown in Figures 6 to 10 , the inner diameter of the shifting fork 83 is consistent with the outer diameter of the engagement sleeve 82, so that the engagement sleeve 82 can rotate in the inside of the shifting fork 83, the shifting fork 83 is provided with an oil pipe 831 on one side, and a drainage groove 832 is provided in the inside of the shifting fork 83, which is used for the lubricating oil to pass through, the inner wall of the shifting fork 83 is provided with an annular shifting plate 833, the shifting fork 83 drives the engagement sleeve 82 to move through the clamping of the shifting plate 833 and the engagement groove 821, the shifting plate 833 and the bottom of the engagement groove 821 are provided with a rotating gap, so that the engagement sleeve 832 drives the scraper 84 to move when rotating, and the straight angle grooves 834 are provided in the inner wall of the shifting fork 83 on both sides of the shifting plate 833, which are connected and closed, so that the lubricating oil can fully lubricate the connecting surface of the shifting fork 83 and the engagement sleeve, and also prevent the lubricating oil from flowing out.

[0064] The inner diameter of the shifting fork 83 is consistent with the outer diameter of the engagement sleeve 82, so that the engagement sleeve 82 will not affect the shifting fork 83 when rotating, and the shifting fork 83 can seal the lubricating oil in the engagement groove 821, prevent the lubricating oil in the engagement groove 821 from flowing out and excessively lubricating the output shaft 6, thereby improving the stability of the operation of the lubricating mechanism 8, the straight angle grooves 834 provided in the shifting fork 83 enable the lubricating oil to lubricate the connecting surface of the shifting fork 83 and the engagement sleeve 82 through the straight angle grooves 834, thereby reducing the friction between the shifting fork 83 and the engagement sleeve 82, increasing the service life of the lubricating mechanism 8, and improving the smooth running of the lubricating mechanism 8.

[0065] The operating mechanism drives the shift fork 83 to move, so that the shift fork 83 drives the engaging sleeve 82 to move through the engaging plate 833 by engaging with the engaging groove 821, and the drainage groove 832 introduces lubricating oil into the engaging groove 821, and the lubricating oil in the engaging groove 821 lubricates the connecting surfaces of the shift fork 83 and the engaging sleeve 82 by rotating the engaging sleeve 82 inside the shift fork 83 through the right-angle groove 834, so that the friction between the engaging sleeve 82 and the shift fork 83 is reduced when the engaging sleeve 82 rotates, the wear of the shift fork 83 is reduced, and the service life of the shift fork 83 is improved.

[0066] As shown in Figure 7 and Figure 9 The scraper 84 is installed on one side of the rear end of the rotating direction of the through groove 822, so that the scraper 84 can actively input lubricating oil into the through groove 822 when it rotates, and the top end of the scraper 84 is an arc surface coaxial with the engaging sleeve 82, which prevents the scraper 84 from damaging the engaging plate 833 when the engaging sleeve 82 rotates, and reduces the sliding resistance of the shift fork 83.

[0067] The scraper 84 is installed on one side of the rear end of the rotating direction of the through groove 822, so that the scraper 84 rotates when the engaging sleeve 82 rotates, and the scraper 84 drives the lubricating oil in the engaging groove 821 to move after rotating, and then actively sends the lubricating oil into the through groove 822, so that the lubricating mechanism 8 can actively transport lubricating oil when it faces viscous lubricating oil, and thus the selection of the lubricating mechanism 8 for the type of lubricating oil is improved, and the universality of the lubricating mechanism 8 is improved.

[0068] When the engaging sleeve 82 rotates, it drives the scraper 84 to rotate, and the scraper 84 sends viscous lubricating oil into the through groove 822 after rotating, and pressurizes the lubricating oil inside the engaging groove 821, so that it can lubricate the connecting surfaces of the shift fork 83 and the engaging sleeve 82 through the right-angle groove 834.

[0069] As shown in Figures 5 to 10 The lubricating assembly 85 includes a sliding plate 851 and a spring 852, the sliding plate 851 is installed in the limiting groove 825, the middle part of the sliding plate 851 is located directly below the through groove 822, so that the sliding plate 851 slides the same distance on both sides, avoiding the difference in friction required to release the limitation of the through groove 822 when sliding from two directions, the two ends of the sliding plate 851 are clamped with the spring 852, and the spring 852 is installed in the limiting groove 825, the spring 852 can drive the sliding plate 851 to move when lubricating, the distance between the sliding plate 851 and the output shaft 6 is kept at a distance that the sliding plate 851 does not slide when lacking lubrication, so that the friction of the output shaft 6 increases when the output shaft 6 lacks lubrication, so that the sliding plate 851 cannot be driven by the spring 852, thereby releasing the limitation of the through groove 822 when the engaging sleeve 82 slides.

[0070] The slide plate 851 is located directly below the through slot 822, so that the spring 852 thrust force received by the slide plate 851 is consistent no matter which direction it moves, so that the friction required to release the restriction of the through slot 822 is consistent, so that the lubricating mechanism 8 lubricates the spline, and the lubricating effect on both sides of the spline is the same, so that the lubricating mechanism 8 slides on the spline more stably.

[0071] When the engagement sleeve 82 slides, the lubricating assembly 85 is driven by the engagement sleeve 82 to move in the spline of the output shaft 6. When the lack of lubrication increases the friction of the output shaft 6, the slide plate 851 cannot be pushed by the spring 852, so that the slide block 8511 slides in the limiting slot 825, releasing the restriction of the through slot 822, so that the lubricating oil enters the limiting slot 825 through the through slot 822, and the lubricating oil lubricates the spline through the limiting slot 825. When the output shaft 6 is lubricated, the slide block 8511 is pushed by the spring 852 to return to its original position to restrict the through slot 822.

[0072] As shown in Figures 5 to 10 The slide plate 851 is arc-shaped and fits the bottom of the output shaft 6, and one end of the slide plate 851 is provided with a cylindrical slide block 8511, so that the slide block 8511 can be pushed by the spring 852 while cooperating with the limiting slot 825 to lock the through slot 822. The slide block 8511 fits the limiting slot 825, and the length of the slide block 8511 is 3 times the diameter of the through slot 822, so that the slide block 8511 has a margin to prevent the output shaft 6 from being lubricated too much when the slide block 8511 is slightly slid to release the restriction of the through slot 822.

[0073] The arc surface of the slide plate 851 fits the bottom surface of the output shaft 6, so that the slide plate 851 can fully utilize the friction of the output shaft 6 to achieve the purpose of releasing the restriction of the through slot 822, thereby improving the upper limit of the monitoring and lubrication accuracy of the lubricating mechanism 8; the length of the slide block 8511 is 3 times the diameter of the through slot 822, so that the slide block 8511 avoids frequent release of the restriction of the through slot 822 caused by friction errors, thereby preventing the lubricating oil in the through slot 822 from flowing out excessively, improving the control of the lubricating mechanism 8 on the lubrication accuracy of the spline, and enabling the lubricating mechanism 8 to exclude more interference.

[0074] After the slide plate 851 moves a certain distance in the limiting slot 825, the slide plate 851 releases the restriction of the through slot 822 through the slide block 8511, so that the lubricating oil enters the limiting slot 825 through the through slot 822, and lubricates the inside of the spline on the output shaft 6 through the limiting slot 825, and the slide block 8511 returns to its original position under the push of the spring 852 to re-lock the through slot 822 after the spline is lubricated.

[0075] In the working process of the present application, when gear shifting is needed, the clutch 2 disconnects with the main shaft 3, so that the main shaft 3 stops rotating, the driver pushes the shift fork 83 to move through the operating mechanism, the shift fork 83 drives the engaging sleeve 82 to move on the spline of the output shaft 6 through the engaging slot 821 by the shifting plate 833, the engaging sleeve 82 is clamped with the clamping assembly 81 on one side after moving through the clamping teeth 823, when clamping, the engaging teeth 812 move in the clamping cavity 8111 within a certain range through the shaking base 8122, so as to automatically adjust the clamping position with the clamping teeth 823, reduce the clamping jam when the engaging sleeve 82 is clamped with the clamping assembly 81, and the engaging teeth 812 cooperate with the sliding groove 8113 above the engaging ring 811 through the bottom guide column 8121, so that the axis of the engaging teeth 812 always points to the center of the engaging ring 811 when self-adjusting, thereby reducing the error when clamping, making the clamping process more stable.

[0076] The lubricating oil in the oil storage box 86 is connected with the oil pipe 831 through the pipeline, and the lubricating oil enters the engaging slot 821 through the drainage groove 832, and then enters the lubricating assembly 85 through the through slot 822 in the engaging sleeve.

[0077] When the spline on the output shaft 6 lacks lubrication during gear shifting, the engaging sleeve 82 drives the limiting teeth 824 to move in the spline of the output shaft 6 when moving, and the limiting teeth 824 drive the lubricating assembly 85 to move in the spline, because the spline lacks lubrication, the spring 852 is difficult to push the sliding plate 851, so that the sliding block 8511 at the rear end of the sliding plate 851 moves in the limiting slot 825, the sliding block 8511 removes the limitation on the through slot 822 after moving, so that the lubricating oil in the through slot 822 enters the limiting slot 825, and the limiting slot 825 lubricates the spline, when the spline is lubricated, the spring 852 can push the sliding block 8511 to move, thereby locking the through slot 822, preventing the lubricating oil from continuing to flow out to make the spline excessively lubricated.

[0078] When the clutch 2 connects the main shaft 3, the main shaft 3 starts to rotate and drives the secondary shaft 4 to rotate, when the reverse gear is needed, the reversing shaft 5 is driven by the operating device 7 to connect the gear fixed on the main shaft 3 and the secondary shaft 4, the secondary shaft 4 rotates through the gear fixed on it, thereby driving the non-fixed gear on the output shaft 6 to rotate, and the gear connected with the engaging sleeve 82 and the clamping assembly 81 is fixed on the output shaft 6, when the fixed gear rotates, the clamping assembly 81 is used to make the engaging teeth 812 clamped with the clamping teeth 823 rotate the engaging sleeve 82 under the push of the baffle 8112, and the engaging sleeve 82 drives the output shaft 6 to rotate through the cooperation of the limiting teeth 824 and the spline, when the engaging sleeve 82 rotates, the engaging sleeve 82 drives the scraper 84 outside the through groove 822 to rotate, when the scraper 84 rotates, the lubricating oil in the engaging groove 821 is pressurized, so that the lubricating oil can lubricate the connecting surface of the engaging sleeve 82 and the shift fork 83 through the right-angle groove 834, thereby reducing the friction between the engaging groove 821 and the shift fork 83, and after the sliding block 8511 unblocks the through groove 822, the rotating scraper 84 will move outward due to centrifugal force, and the lubricating oil is actively sent into the through groove 822, so that the lubricating oil overcomes the centrifugal force and enters the limiting groove 825, and then lubricates the spline through the limiting groove 825, thereby reducing the resistance during gear shifting, so that the lubricating mechanism 8 is more smooth during gear shifting.

[0079] The description herein is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automotive transmission, comprising a housing (1), a clutch (2), a main shaft (3), a countershaft (4), a reversing shaft (5), an output shaft (6), and a control device (7); wherein the clutch (2) is mounted at the front end of the housing (1), the main shaft (3) is mounted at the rear end of the clutch (2), the countershaft (4) is mounted at the lower part of the housing (1), and the main shaft (3) is connected to the countershaft (4), the reversing shaft (5) is mounted at the lower part of the rear end of the housing (1), the output shaft (6) is mounted at the upper part of the rear end of the housing (1), and the control device (7) is also mounted inside the housing (1); characterized in that, It also includes a lubrication mechanism (8), which is installed on the end of the main shaft (3) and the output shaft (6) and connected to the control device (7). The lubrication mechanism (8) drives the engagement sleeve (82) to move on the output shaft (6) through the shift fork (83) and then engages with the engagement component (81) on one side. The engagement component (81) changes the position of the engagement teeth (812) after moving in a small range in the engagement cavity (8111) through the engagement teeth (812) distributed in a ring on the engagement ring (811). After the engagement teeth (812) are changed in position, they are connected to the engagement sleeve (82).

2. The automotive transmission according to claim 1, characterized in that: The lubrication mechanism (8) includes: a locking assembly (81), a coupling sleeve (82), a shift fork (83), a scraper (84), a lubrication assembly (85), and an oil reservoir (86); the locking assembly (81) is installed on the end of the main shaft (3) and on one side of the non-fixed gear on the output shaft (6); the coupling sleeve (82) is installed on the spline on the output shaft (6) and is coaxially connected to the locking assemblies (81) on both sides when sliding; one end of the shift fork (83) is connected to the coupling sleeve (82), and the other end is connected to the control device (7); the scraper (84) is installed in a ring array on the inner wall of the coupling sleeve (82); multiple rings of the lubrication assembly (85) are installed inside the coupling sleeve (82) and connected to the output shaft (6); the oil reservoir (86) is installed on the outer shell (1) and connected to the shift fork (83) through a pipe.

3. The automobile transmission according to claim 2, characterized in that: The engaging assembly (81) includes an engaging ring (811) and engaging teeth (812); the engaging ring (811) has a plurality of engaging teeth (812) arranged in an inner annular array, and the axes of the engaging teeth (812) all pass through the center of the engaging ring (811).

4. The automobile transmission according to claim 3, characterized in that: The engagement ring (811) has a U-shaped engagement cavity (8111) inside. Multiple baffles (8112) are evenly installed inside the engagement cavity (8111). The spacing between any two baffles (8112) is within 1.5 times the width of the engagement teeth (812) at the same center distance. Annular grooves (8113) are provided on both sides of the engagement cavity (8111).

5. The automobile transmission according to claim 4, characterized in that: The upper part of the engagement tooth (812) is a triangular structure and the lower part is a rectangular structure. There are columns on both sides of the lower end of the engagement tooth (812). A rocking base (8122) is provided at the center of the lower part of the engagement tooth (812). The rocking base (8122) has planes on both sides that are parallel to the contact baffle (8112).

6. The automobile transmission according to claim 5, characterized in that: The engaging sleeve (82) is provided with an annular engaging groove (821). The bottom of the engaging groove (821) is provided with a plurality of through grooves (822) arranged in an annular array. The engaging sleeve (82) is provided with a plurality of locking teeth (823) around the center on both sides. The included angle between the axes of adjacent locking teeth (823) is consistent with the included angle between the axes of adjacent baffles (8112). The locking teeth (823) mesh with two adjacent engaging teeth (812). A limiting tooth (824) is provided below the through groove (822). A circular limiting groove (825) is provided inside the limiting tooth (824).

7. The automobile transmission according to claim 6, characterized in that: The inner diameter of the shift fork (83) is the same as the outer diameter of the connecting sleeve (82). An oil pipe (831) is installed on one side of the shift fork (83). A drainage groove (832) is opened inside the shift fork (83). An annular actuating plate (833) is provided on the inner wall of the shift fork (83). A rotation gap is left between the actuating plate (833) and the bottom of the connecting groove (821). Right-angle grooves (834) are opened on both sides of the actuating plate (833) and the inner wall of the shift fork (83) to connect and close.

8. The automobile transmission according to claim 7, characterized in that: The scraper (84) is installed on the rear side of the through groove (822) in the direction of rotation, and the top of the scraper (84) is an arc surface coaxial with the connecting sleeve (82).

9. A car transmission according to claim 8, characterized in that: The lubrication assembly (85) includes a slide plate (851) and a spring (852). The slide plate (851) is installed in a limiting groove (825). The middle part of the slide plate (851) is located directly below the through groove (822). The two ends of the slide plate (851) are engaged with springs (852), and the springs (852) are installed in the limiting groove (825). The distance between the slide plate (851) and the output shaft (6) is maintained at a distance at which the slide plate (851) will not slide when there is a lack of lubrication.

10. An automotive transmission according to claim 9, characterized in that: The slide plate (851) is arc-shaped and fits against the bottom of the output shaft (6). A cylindrical slider (8511) is provided at one end of the slide plate (851). The slider (8511) fits against the limiting groove (825). The length of the slider (8511) is 3 times the diameter of the through groove (822).

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