Rear shell of gearbox

Abstract

The utility model relates to a gearbox rear shell which comprises a rear shell body and further comprises a positioning mechanism, the positioning mechanism comprises a plurality of anti-skid plates and a plurality of positioning columns with through holes, a plurality of bolt holes are formed in the rear shell body, the positioning columns correspond to the bolt holes, the positioning columns are fixedly connected to the rear shell body, and the anti-skid plates are arranged on the positioning columns. The multiple through holes are coaxial with the corresponding bolt holes respectively, and the multiple anti-skid plates are rotationally connected to the rear shell body in the installation direction perpendicular to the rear shell. The rear shell body is guided during installation through the guide columns, and the arrangement of the multiple guide columns plays a role in positioning and fool-proof during installation of the rear shell body, so that the possibility of deviation or wrong installation direction during installation of the rear shell body is reduced; and the anti-skid plate plays a role in limiting the rear shell main body and parts installed on the rear shell main body during installation, so that the possibility of difficult installation caused by shaking of the rear shell main body or the parts installed on the rear shell main body during the installation process is reduced.

Description

Technical Field

[0001] The utility model relates to the field of a gearbox rear housing, in particular to a gearbox rear housing. Background Art

[0002] With the rapid development of the domestic automobile market, the requirements for automobile parts are getting higher and higher. The rear housing of the automobile gearbox is an important component of the gearbox assembly, which is used to install the housing structure of the transmission mechanism and its accessories. At present, the gearbox housing is generally composed of a front housing and a rear housing connected together, but many gearbox lower housings are inconvenient to position during assembly, the assembly efficiency is low, and the connection position is low in strength and easy to break, resulting in connection failure.

[0003] The utility model with announcement number CN212155713U discloses a gearbox rear cover shell, including a rear cover body, the periphery of the rear cover body forms a gradually expanding extension portion, and the rear cover body and the extension portion form a rear cover shell; mounting ears and brake cable / bracket interfaces are reserved on the rear cover body, and a vehicle suspension interface is reserved on the extension portion.

[0004] The rear housing in the above technical solution does not have a positioning structure, and is prone to deviation or gap when being installed with the front housing. Utility Model Content

[0005] In order to reduce the possibility of deviation when installing the rear housing, the present application provides a gearbox rear housing.

[0006] The present application provides a transmission rear housing that adopts the following technical solution:

[0007] A gearbox rear housing includes a rear housing body and a positioning mechanism, wherein the positioning mechanism is used for positioning the rear housing body during installation, and the positioning mechanism includes multiple anti-skid plates and multiple positioning columns with through holes. Multiple bolt holes are opened on the rear housing body, and multiple positioning columns correspond to the multiple bolt holes. The multiple positioning columns are respectively fixedly connected to the rear housing body, and the multiple through holes are respectively coaxial with the corresponding bolt holes. The multiple anti-skid plates are respectively rotatably connected to the rear housing body along the installation direction perpendicular to the rear housing. When the rear housing body is in the installed state, the anti-skid plates abut against the rear housing body and the components installed therewith.

[0008] By adopting the above technical solution, the rear shell body is guided during installation by means of guide columns, and the provision of multiple guide columns plays a role in positioning and preventing the installation of the rear shell body, thereby reducing the possibility of deviation or wrong installation direction of the rear shell body during installation; the anti-skid plate plays a role in limiting the rear shell body and the components installed therewith during installation, thereby reducing the possibility of shaking of the rear shell body or the components installed therewith during installation, thereby reducing the possibility of installation difficulties caused by shaking of the rear shell body or the components installed therewith.

[0009] Preferably, a card block is provided on the anti-slip plate, and a card slot engaged with the card block is provided on the rear shell body. When the anti-slip plate is rotated toward one side of the card slot to an extreme position, the card block is engaged with the card slot.

[0010] By adopting the above technical solution, the anti-slip plate is limited during installation by making the card block and the card slot engage with each other, thereby reducing the possibility that the anti-slip plate will flip over and fail to abut against the rear shell body or the components installed therewith during installation.

[0011] Preferably, an abutment groove is provided in the card slot, a spring is provided in the abutment groove, a hook ring is provided on the card block, one end of the spring is hooked on the hook ring, and the spring always drives the anti-slide plate to rotate toward one side of the card slot.

[0012] By adopting the above technical solution, the anti-skid plate can further limit the rear housing body and the components installed therewith when the transmission is in use, thereby reducing the possibility of loosening between the rear housing body and the components installed therewith when the transmission is in use.

[0013] Preferably, the plurality of positioning posts are arranged in a tapered shape from one end of the plurality of positioning posts away from the rear shell body to a side close to the rear shell body and away from the rear shell body.

[0014] By adopting the above technical solution, the positioning column is guided, thereby reducing the possibility of difficulty in installing the positioning column.

[0015] Preferably, the axial cross-sections of the plurality of positioning posts are deformed in multiple shapes, and the corners of the plurality of positioning posts are rounded to provide a smooth transition.

[0016] By adopting the above technical solution, the installation of the rear shell body can be further positioned, reducing the possibility of deviation of the rear shell body during installation, and further playing an anti-mistake role, reducing the possibility of incorrect installation direction of the rear shell body, and the setting of the chamfered corners can reduce the possibility of wear of the positioning column during fitting.

[0017] Preferably, it also includes a sealing ring, a sealing groove that can cooperate with the sealing ring is opened on the rear shell body, a plurality of T-shaped blocks are provided on the sealing ring, a T-shaped groove that can cooperate with the T-shaped block is opened in the sealing groove, and when the sealing ring is installed on the rear shell body, the sealing ring cooperates with the sealing groove, and the T-shaped block cooperates with the T-shaped groove.

[0018] By adopting the above technical solution, through the cooperation of the T-shaped block and the T-shaped groove, the sealing ring is easily installed and the possibility of the sealing ring coming out is reduced, thereby reducing the possibility of oil leakage when the transmission is in use.

[0019] Preferably, the sealing ring is further provided with a plurality of sealing rings, and the plurality of sealing rings correspond to a plurality of positioning posts. When the sealing ring is mounted on the rear shell body, the plurality of sealing rings are respectively sleeved on the positioning posts.

[0020] By adopting the above technical solution, the sealing ring plays a role in positioning the installation of the sealing ring, which facilitates the installation of the sealing ring and further reduces the possibility of oil leakage when the transmission is in use.

[0021] The technical effects of this utility model are mainly reflected in the following aspects:

[0022] 1. The utility model provides a positioning structure and guides the rear housing body during installation through guide columns. The provision of multiple guide columns plays a role in positioning and foolproofing the installation of the rear housing body, reducing the possibility of deviation or wrong installation direction of the rear housing body during installation; the anti-slide plate plays a role in limiting the rear housing body and the components installed therewith during installation, reducing the possibility of shaking of the rear housing body or the components installed therewith during installation, resulting in installation difficulties;

[0023] 2. The utility model provides a card block and a card slot, which further limit the anti-slide plate during installation. When the transmission is in use, the anti-slide plate can limit the rear housing body and the components installed therewith, thereby reducing the possibility of loosening between the rear housing body and the components installed therewith when the transmission is in use;

[0024] 3. The utility model further positions the installation of the rear shell body by making the axial cross section of the positioning column polygonal, thereby reducing the possibility of deviation of the rear shell body during installation, and further plays a fool-proof role, reducing the possibility of incorrect installation direction of the rear shell body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the anti-skid plate structure of an embodiment of the present application.

[0027] Figure 3 is along Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 is along Figure 2 Enlarged view of point B in the middle.

[0029] Figure 5 It is a schematic diagram of the bolt hole structure of an embodiment of the present application.

[0030] Explanation of the reference numerals: 1. rear shell body; 11. bolt hole; 12. slot; 121. abutment slot; 13. sealing slot; 131. T-slot; 2. positioning mechanism; 21. anti-skid plate; 211. block; 2111. hook ring; 212. spring; 22. positioning column; 221. through hole; 3. sealing ring; 31. T-block; 32. sealing ring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0032] An embodiment of the present application discloses a gearbox rear housing.

[0033] Reference Figure 1-Figure 5 A gearbox rear housing of the present embodiment includes a rear housing body 1 and a positioning mechanism 2. The positioning mechanism 2 is used for positioning the rear housing body 1 during installation. The positioning mechanism 2 includes a plurality of anti-slide plates 21 and a plurality of positioning columns 22 with through holes 221. A plurality of bolt holes 11 are provided on the rear housing body 1. The plurality of positioning columns 22 correspond to the plurality of bolt holes 11. The plurality of positioning columns 22 are respectively fixedly connected to the rear housing body 1. The plurality of through holes 221 are respectively coaxial with the corresponding bolt holes 11. The plurality of positioning columns 22 are arranged in a tapered shape from one end away from the rear housing body 1 to the side close to the rear housing body 1 to the side away from the rear housing body 1. The positioning columns 22 are guided to reduce the possibility of difficulty in installing the positioning columns 22.

[0034] Reference Figure 1-Figure 5 The axial cross-sections of the plurality of positioning posts 22 are deformed, and the corners of the plurality of positioning posts 22 are rounded and smoothly transitioned. The installation of the rear housing body 1 is further positioned, the possibility of deviation of the rear housing body 1 during installation is reduced, and the error prevention effect is further played, reducing the possibility of the rear housing body 1 being installed in the wrong direction. The setting of the rounded corners can reduce the possibility of wear of the positioning posts 22 during matching.

[0035] Reference Figure 1-Figure 5When the positioning column 22 cooperates with the parts installed on the rear shell body 1, the rear shell body 1 can be installed by passing the bolt through the bolt hole 11 and the through hole 221 on the positioning column 22, and then the nut is threadedly connected with the bolt.

[0036] Reference Figure 1-Figure 5 , multiple anti-skid plates 21 are respectively connected to the rear shell body 1 by rotation along the installation direction perpendicular to the rear shell body. When the rear shell body 1 is in the installation state, the anti-skid plates 21 abut against the rear shell body 1 and the parts installed therewith. The guide column guides the rear shell body 1 during installation. The setting of multiple guide columns plays a role in positioning and foolproofing the installation of the rear shell, reducing the possibility of deviation or wrong installation direction of the rear shell body 1 during installation; the anti-skid plates 21 play a role in limiting the rear shell body 1 and the parts installed therewith during installation, reducing the possibility of shaking of the rear shell body 1 or the parts installed therewith during installation, resulting in installation difficulties.

[0037] Reference Figure 1-Figure 5 A clamping block 211 is fixedly connected to the side of the anti-skid plate 21 close to the positioning column 22, and a clamping slot 12 is provided on the rear housing body 1 to be clamped with the clamping block 211. When the anti-skid plate 21 is rotated to the limit position toward the clamping slot 12, the clamping block 211 is clamped with the clamping slot 12. By making the clamping block 211 clamped with the clamping slot 12, the anti-skid plate 21 is limited during installation, reducing the possibility that the anti-skid plate 21 flips over and fails to abut against the rear housing body 1 or the components installed therewith during installation.

[0038] Reference Figure 1-Figure 5 The card slot 12 is provided with an abutment groove 121, a spring 212 is fixedly connected in the abutment groove 121, a hook ring 2111 is fixedly connected to the card block 211, one end of the spring 212 is hooked on the hook ring 2111, and the spring 212 always drives the anti-slip plate 21 to rotate toward the card slot 12. When a force is applied to the anti-slip plate 21 to rotate the anti-slip plate 21 toward the side away from the card slot 12, the pull rope of the spring 212 is deformed. When the anti-slip plate 21 is released, the spring 212 returns to its original shape, causing the anti-slip plate 21 to rotate toward the card slot 12. Furthermore, when the anti-slip plate 21 is installed, it plays a limiting role, so that when the transmission is in use, the anti-slip plate 21 can limit the rear housing body 1 and the components installed therewith, thereby reducing the possibility of loosening between the rear housing body 1 and the components installed therewith when the transmission is in use.

[0039] Reference Figure 1-Figure 5, further comprising a sealing ring 3, a sealing groove 13 which can cooperate with the sealing ring 3 is provided on the rear housing body 1, a plurality of T-shaped blocks 31 are fixedly connected to the sealing ring 3, a T-shaped slot 131 which can cooperate with the T-shaped block 31 is provided in the sealing groove 13, and when the sealing ring 3 is installed on the rear housing body 1, the sealing ring 3 cooperates with the sealing groove 13, and the T-shaped block 31 cooperates with the T-shaped slot 131. Through the cooperation between the T-shaped block 31 and the T-shaped slot 131, the sealing ring 3 is easily installed, and the possibility of the sealing ring 3 coming out is reduced, thereby reducing the possibility of oil leakage when the transmission is in use.

[0040] Reference Figure 1-Figure 5 The sealing ring 3 is also fixedly connected with a plurality of sealing rings 32. The plurality of sealing rings 32 and the plurality of T-shaped blocks 31 are integrally formed with the sealing ring 3. The plurality of sealing rings 32 correspond to the plurality of positioning posts 22. When the sealing ring 3 is installed on the rear housing body 1, the plurality of sealing rings 32 are respectively sleeved on the positioning posts 22. The sealing ring 32 plays a role in positioning the installation of the sealing ring 3, which facilitates the installation of the sealing ring 3 and further reduces the possibility of oil leakage when the transmission is in use.

[0041] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A gearbox rear housing, comprising a rear housing body (1), characterized in that: The invention also comprises a positioning mechanism (2), wherein the positioning mechanism (2) is used for positioning the rear shell body (1) during installation, and the positioning mechanism (2) comprises a plurality of anti-skid plates (21) and a plurality of positioning columns (22) with through holes (221). The rear shell body (1) is provided with a plurality of bolt holes (11), and the plurality of positioning columns (22) correspond to the plurality of bolt holes (11). The plurality of positioning columns (22) are respectively fixedly connected to the rear shell body (1), and the plurality of through holes (221) are respectively coaxial with the corresponding bolt holes (11). The plurality of anti-skid plates (21) are respectively rotatably connected to the rear shell body (1) along an installation direction perpendicular to the rear shell body. When the rear shell body (1) is in an installed state, the anti-skid plates (21) abut against the rear shell body (1) and the components installed therewith.

2. A gearbox rear housing according to claim 1, characterized in that: The anti-slip plate (21) is provided with a clamping block (211), and the rear shell body (1) is provided with a clamping slot (12) that is clamped and matched with the clamping block (211); when the anti-slip plate (21) is rotated toward one side of the clamping slot (12) to an extreme position, the clamping block (211) is clamped and matched with the clamping slot (12).

3. A gearbox rear housing according to claim 2, characterized in that: The clamping slot (12) is provided with an abutting slot (121), the abutting slot (121) is provided with a spring (212), the clamping block (211) is provided with a hook ring (2111), one end of the spring (212) is hooked on the hook ring (2111), and the spring (212) always drives the anti-slide plate (21) to rotate toward one side of the clamping slot (12).

4. The gearbox rear housing according to claim 1, characterized in that: The plurality of positioning posts (22) are arranged in a tapered shape from one end away from the rear shell body (1) to the side close to the rear shell body (1) to the side away from the rear shell body (1).

5. The gearbox rear housing according to claim 4, characterized in that: The axial cross-sections of the plurality of positioning posts (22) are polygonal, and the corners of the plurality of positioning posts (22) are rounded to provide a smooth transition.

6. The transmission rear housing according to claim 1, characterized in that: The invention also comprises a sealing ring (3), wherein the rear housing body (1) is provided with a sealing groove (13) which can cooperate with the sealing ring (3), the sealing ring (3) is provided with a plurality of T-shaped blocks (31), the sealing groove (13) is provided with a T-shaped groove (131) which can cooperate with the T-shaped blocks (31), and when the sealing ring (3) is installed on the rear housing body (1), the sealing ring (3) cooperates with the sealing groove (13), and the T-shaped blocks (31) cooperate with the T-shaped grooves (131).

7. The transmission rear housing according to claim 6, characterized in that: The sealing ring (3) is also provided with a plurality of sealing rings (32), and the plurality of sealing rings (32) correspond to a plurality of positioning posts (22). When the sealing ring (3) is installed on the rear housing body (1), the plurality of sealing rings (32) are respectively sleeved on the positioning posts (22).

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