Supporting seat, gearbox and vehicle

Abstract

The present disclosure relates to the technical field of automatic gearbox, and particularly relates to a supporting seat, a gearbox and a vehicle. The supporting seat comprises a supporting cylinder, a connecting flange and a supporting ring; the supporting cylinder, the connecting flange and the supporting ring are coaxially arranged; the supporting cylinder is in plug-in fit with a gearbox shell and coaxially sleeved on an intermediate shaft; the connecting flange is detachably connected with the gearbox shell; and the supporting ring is coaxially sleeved on a transmission shaft. The supporting seat, through the arrangement of the connecting flange, can be reliably connected on the gearbox shell by means of bolt connection or the like; through the arrangement of the supporting cylinder and the supporting ring, two force points are provided for the intermediate shaft and the transmission shaft, the radial force generated by the intermediate shaft is offset by the gearbox shell and the transmission shaft, and the radial force generated by the transmission shaft is offset by the gearbox shell and the intermediate shaft; the pressure of the gearbox shell is effectively reduced, and the probability of deformation of the gearbox shell is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of automatic transmission technology, and more particularly to a support, transmission, and vehicle. Background Technology

[0002] A car transmission is a gearbox that coordinates the engine speed and the actual speed of the wheels to optimize engine performance. During vehicle operation, the transmission can create different gear ratios between the engine and wheels, enabling the transmission of different engine speeds.

[0003] There are two types of transmissions: manual and automatic. Manual transmissions are mainly composed of gears and shafts, and different gear combinations produce speed and torque changes. Automatic transmissions (AT) are composed of a torque converter, planetary gears, and a hydraulic control system, and achieve speed and torque changes through hydraulic transmission and gear combinations.

[0004] Automatic transmissions, with their advantages of improved driving comfort and reduced driver fatigue, have become a popular trend in modern car configurations. They utilize planetary gear mechanisms for gear shifting, automatically changing gears based on accelerator pedal pressure and vehicle speed. Drivers only need to operate the accelerator pedal to control speed, allowing them to focus entirely on the road without the hassle of manual shifting.

[0005] Currently, many automatic transmissions have a support base in the middle position to serve as the main support structure for the middle part of the drive shaft. However, the support base currently used in the middle of the transmission can only support the intermediate shaft. It has a simple structure and a single function, and does not make full use of the stability of its direct connection with the transmission housing. Summary of the Invention

[0006] To address the aforementioned technical problems, this disclosure provides a support base, a gearbox, and a vehicle.

[0007] In a first aspect, this disclosure provides a support base, comprising: a support cylinder, a connecting flange, and a support ring;

[0008] The support cylinder, the connecting flange, and the support ring are coaxially arranged.

[0009] The support cylinder is inserted into the gearbox housing and coaxially sleeved on the intermediate shaft;

[0010] The connecting flange is detachably connected to the gearbox housing;

[0011] The support ring is coaxially sleeved on the drive shaft;

[0012] In the axial direction, the support cylinder and the support ring are located on both sides of the connecting flange, respectively.

[0013] Optionally, a first bearing is provided between the support cylinder and the intermediate shaft, and a second bearing is provided between the support ring and the transmission shaft.

[0014] Optionally, the first bearing is located at the end of the support cylinder away from the connecting flange.

[0015] And / or the second bearing is located at the end of the support ring away from the connecting flange.

[0016] Optionally, the inner wall of the support cylinder is provided with a recessed portion, which is connected to the main oil passage on the intermediate shaft, and the side wall of the support cylinder is provided with a lubrication channel that is connected to the recessed portion.

[0017] The side wall of the support cylinder is provided with a distribution oil passage that communicates with the main oil passage on the intermediate shaft. The side wall of the support cylinder is also provided with multiple distribution channels, each of which is connected to the distribution oil passage.

[0018] Optionally, the distribution oil passage is opened axially on the support cylinder; a plurality of the distribution channels are arranged axially on the side wall of the support cylinder.

[0019] Optionally, the support cylinder is provided with a plurality of sealing parts, which are arranged axially on the support cylinder, and the diameter of the sealing part near the insertion end is smaller than the diameter of the sealing part away from the insertion end.

[0020] Optionally, the sealing part is interference-fitted with the gearbox housing via a sealing protrusion.

[0021] Optionally, there are two sealing parts, with the sealing protrusion near the insertion end located on the gearbox housing and the sealing protrusion away from the insertion end located on the support cylinder.

[0022] Secondly, this disclosure provides a gearbox including the support as described above.

[0023] Secondly, this disclosure provides a vehicle including the transmission described above.

[0024] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0025] The support provided in this disclosure, through the setting of the connecting flange, can be reliably connected to the gearbox housing by means of bolt connection or other methods. The setting of the support cylinder and the support ring is equivalent to providing two force points for the intermediate shaft and the drive shaft. The radial force generated by the intermediate shaft is canceled by the gearbox housing and the drive shaft, and the radial force generated by the drive shaft is canceled by the gearbox housing and the intermediate shaft. This effectively reduces the pressure on the gearbox housing and reduces the probability of gearbox housing deformation. At the same time, by utilizing the fact that the support cylinder and the support ring are located on both sides of the connecting flange, a seesaw effect can be formed, thereby better protecting the structure of the support itself and effectively reducing the probability of deformation of the support due to unbalanced forces. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the support seat installed inside the gearbox according to an embodiment of the present disclosure;

[0029] Figure 2 This is a schematic diagram of the support base according to an embodiment of the present disclosure;

[0030] Figure 3 This is a schematic diagram of the oil distribution circuit in the support seat according to an embodiment of the present disclosure;

[0031] Figure 4 This is a schematic diagram of the lubrication oil circuit in the support seat according to an embodiment of this disclosure.

[0032] Among them, 1. support cylinder; 11. recessed part; 12. lubrication channel; 13. distribution oil passage; 14. distribution channel; 15. sealing part; 2. connecting flange; 3. support ring; 4. gearbox housing; 5. intermediate shaft; 6. drive shaft; 71. first bearing; 72. second bearing. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0034] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0035] A car transmission is a gearbox that coordinates the engine speed and the actual speed of the wheels to optimize engine performance. During vehicle operation, the transmission can create different gear ratios between the engine and wheels, enabling the transmission of different engine speeds.

[0036] There are two types of transmissions: manual and automatic. Manual transmissions are mainly composed of gears and shafts, and different gear combinations produce speed and torque changes. Automatic transmissions (AT) are composed of a torque converter, planetary gears, and a hydraulic control system, and achieve speed and torque changes through hydraulic transmission and gear combinations.

[0037] Automatic transmissions, with their advantages of improved driving comfort and reduced driver fatigue, have become a popular trend in modern car configurations. They utilize planetary gear mechanisms for gear shifting, automatically changing gears based on accelerator pedal pressure and vehicle speed. Drivers only need to operate the accelerator pedal to control speed, allowing them to focus entirely on the road without the hassle of manual shifting.

[0038] Currently, many automatic transmissions have a support base in the middle position to serve as the main support structure for the middle part of the drive shaft. However, the support base currently used in the middle of the transmission can only support the intermediate shaft. It has a simple structure and a single function, and does not make full use of the stability of its direct connection with the transmission housing.

[0039] Based on this, this embodiment provides a support base, a gearbox, and a vehicle. By using a connecting flange, the support base can be reliably connected to the gearbox housing via bolts or other methods. The support cylinder and support ring effectively provide two stress points for the intermediate shaft and drive shaft. The radial force generated by the intermediate shaft is offset by the gearbox housing and drive shaft, and vice versa. This effectively reduces the pressure on the gearbox housing and lowers the probability of deformation. Furthermore, by utilizing the fact that the support cylinder and support ring are located on opposite sides of the connecting flange, a seesaw effect is created, better protecting the support base's structure and effectively reducing the probability of deformation due to unbalanced forces. The following detailed embodiments illustrate this further:

[0040] Reference Figures 1 to 4As shown, the support base provided in this embodiment includes: a support cylinder 1, a connecting flange 2, and a support ring 3; the support cylinder 1, the connecting flange 2, and the support ring 3 are coaxially arranged; the support cylinder 1 is inserted into the gearbox housing 4 and coaxially sleeved on the intermediate shaft 5; the connecting flange 2 is detachably connected to the gearbox housing 4; the support ring 3 is coaxially sleeved on the drive shaft 6; in the axial direction, the support cylinder 1 and the support ring 3 are located on both sides of the connecting flange 2.

[0041] The connecting flange 2 allows the support base to be reliably connected to the gearbox housing 4 via bolts or other means. The support cylinder 1 and support ring 3 effectively provide two stress points for the intermediate shaft 5 and the drive shaft 6. The radial force generated by the intermediate shaft 5 is offset by the gearbox housing 4 and the drive shaft 6, and vice versa. This effectively reduces the pressure on the gearbox housing 4 and the probability of deformation. Furthermore, the location of the support cylinder 1 and support ring 3 on opposite sides of the connecting flange 2 creates a seesaw effect, better protecting the support base's structure and effectively reducing the probability of deformation due to unbalanced forces.

[0042] In some embodiments, a first bearing 71 is provided between the support cylinder 1 and the intermediate shaft 5, and a second bearing 72 is provided between the support ring 3 and the transmission shaft 6.

[0043] In a further embodiment, the first bearing 71 is located at the end of the support cylinder 1 away from the connecting flange 2, and / or the second bearing 72 is located at the end of the support ring 3 away from the connecting flange 2; by setting the two bearings at the two ends away from the connecting flange 2, the stability and reliability of the entire support can be further increased, and the axial length and strength of the support can be better utilized to reduce the impact of the shaking of the intermediate shaft 5 and the drive shaft 6.

[0044] Continue to refer to Figure 4As shown, the inner wall of the support cylinder 1 has a recess 11, which is connected to the main oil passage on the intermediate shaft 5. The side wall of the support cylinder 1 has a lubrication channel 12 connected to the recess 11. The side wall of the support cylinder 1 has a distribution oil passage 13 connected to the main oil passage on the intermediate shaft 5. The side wall of the support cylinder 1 also has multiple distribution channels 14, each of which is connected to the distribution oil passage 13. The recess 11 and the lubrication channel 12 cooperate to form a lubrication oil passage, providing lubricating oil to the position connected to the lubrication channel 12. At the same time, a lubrication space is formed between the support cylinder 1 and the intermediate shaft 5. Through the setting of the distribution oil passage 13 and the distribution channel 14, the flow of the main oil passage can be distributed using the support seat, and oil pressure can be established at the position connected to the distribution channel 14. This setting can utilize the structure of the support seat itself to form part of the oil passage, eliminating the need to set up the oil passage around the support seat, which greatly reduces the overall cost of the gearbox.

[0045] Continue to refer to Figure 3 As shown, the distribution oil passage 13 is opened axially on the support cylinder 1; multiple distribution channels 14 are arranged axially on the side wall of the support cylinder 1. This arrangement can make full use of the axial space of the support cylinder 1 and make it easier to make each distribution channel 14 staggered and connected to different oil passages in the gearbox. The distribution channel 14 can be arranged radially or inclined, as long as it can be connected to the set oil passage and is easy to process.

[0046] In some embodiments, the support cylinder 1 is provided with a plurality of sealing portions 15, which are arranged axially on the support cylinder 1. The diameter of the sealing portion 15 near the insertion end is smaller than that of the sealing portion 15 away from the insertion end. That is, the diameter of the plurality of sealing portions 15 gradually decreases along the insertion direction of the support cylinder 1. The insertion end refers to the end of the support cylinder 1 in the direction of its insertion into the gearbox housing 4. By arranging the plurality of sealing portions 15 axially and designing the varying diameter of the plurality of sealing portions 15, the diameter of the sealing portion 15 near the insertion end is made smaller. Therefore, when the support cylinder 1 of the support seat is inserted, it can always be ensured that the previous sealing portion 15 passes smoothly through the hole on the gearbox housing 4. This enables the support cylinder 1 of the support seat to complete the insertion action more smoothly and efficiently during the insertion into the gearbox housing 4.

[0047] In a further embodiment, the sealing part 15 and the gearbox housing 4 are interference-fitted by a sealing protrusion; it should be understood that when the sealing protrusion is provided on the sealing part 15, the diameter of the sealing part 15 is the maximum diameter of the sealing protrusion; the interference fit achieves a tight connection between the support cylinder 1 and the gearbox housing 4, which not only completes the fixing action, but also achieves the sealing effect.

[0048] In some embodiments, there are two sealing portions 15. The sealing protrusion near the insertion end is located on the gearbox housing 4, and the sealing protrusion away from the insertion end is located on the support cylinder 1. That is, the two sealing portions 15 achieve a smaller diameter near the insertion end by setting the sealing protrusions differently, thereby facilitating the insertion of the support cylinder 1 of the support base. It should be understood that because the sealing portion 15 near the insertion end has a smaller diameter, it will not generate excessive friction with the gearbox housing 4 during the entire insertion process of the support cylinder 1. That is, it will hardly generate burrs due to friction. The two sealing portions 15 set in this way only start to press against the gearbox housing 4 within a short distance before the support cylinder 1 moves to its final position, achieving an interference fit. In other words, this setting can generate fewer burrs when installing the support base. At the same time, after burrs are generated, the support base will only move a short distance and will not drag the burrs on the gearbox housing 4 for too long, thereby effectively reducing the probability of burrs entering the oil passage of the gearbox housing 4.

[0049] Secondly, this disclosure provides a gearbox including the support as described above.

[0050] Secondly, this disclosure provides a vehicle including the transmission described above.

[0051] The specific implementation method and principle are the same as those in the above embodiments, and can bring the same or similar technical effects. They will not be described in detail here. For details, please refer to the description of the above support base embodiments.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0053] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A support base, characterized in that, include: Support cylinder (1), connecting flange (2) and support ring (3); The support cylinder (1), the connecting flange (2), and the support ring (3) are coaxially arranged; The support cylinder (1) is inserted into the gearbox housing (4) and coaxially sleeved on the intermediate shaft (5); The connecting flange (2) is detachably connected to the gearbox housing (4); The support ring (3) is coaxially sleeved on the transmission shaft (6); In the axial direction, the support cylinder (1) and the support ring (3) are located on both sides of the connecting flange (2); The inner wall of the support cylinder (1) is provided with a recess (11), the recess (11) is connected to the main oil passage on the intermediate shaft (5), and the side wall of the support cylinder (1) is provided with a lubrication channel (12) connected to the recess (11). The side wall of the support cylinder (1) is provided with a distribution oil passage (13) that is connected to the main oil passage on the intermediate shaft (5). The side wall of the support cylinder (1) is also provided with a plurality of distribution channels (14), each of which is connected to the distribution oil passage (13). The support cylinder (1) and the support ring (3) provide two force points for the intermediate shaft (5) and the drive shaft (6). The radial force generated by the intermediate shaft (5) is offset by the gearbox housing (4) and the drive shaft (6). The radial force generated by the drive shaft (6) is offset by the gearbox housing (4) and the intermediate shaft (5). A first bearing (71) is provided between the support cylinder (1) and the intermediate shaft (5), and a second bearing (72) is provided between the support ring (3) and the transmission shaft (6). The first bearing (71) is located at the end of the support cylinder (1) away from the connecting flange (2). The second bearing (72) is located at the end of the support ring (3) away from the connecting flange (2); The distribution oil passage (13) is opened axially on the support cylinder (1); a plurality of the distribution channels (14) are arranged axially on the side wall of the support cylinder (1).

2. The support base according to claim 1, characterized in that, The support cylinder (1) is provided with a plurality of sealing parts (15), which are arranged axially on the support cylinder (1), and the diameter of the sealing part (15) near the insertion end is smaller than the diameter of the sealing part (15) away from the insertion end.

3. The support base according to claim 2, characterized in that, The sealing part (15) and the gearbox housing (4) are interference-fitted by a sealing protrusion.

4. The support base according to claim 3, characterized in that, The number of the sealing parts (15) is two, with the sealing protrusion near the insertion end located on the gearbox housing (4) and the sealing protrusion away from the insertion end located on the support cylinder (1).

5. A gearbox, characterized in that, Includes the support base as described in any one of claims 1 to 4.

6. A vehicle, characterized in that, Includes the gearbox as described in claim 5.

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