Transmission control box, transmission and automobile

Abstract

The utility model discloses a transmission maneuvering box, a transmission and an automobile, the transmission maneuvering box comprises a maneuvering box shell and an upper cover shell, the maneuvering box shell is detachably connected with the upper cover shell through a connecting mechanism, and the connecting mechanism comprises a first connecting assembly and a second connecting assembly; the first connecting assembly comprises a hollow positioning pin and a fastening bolt coaxially arranged in the hollow positioning pin in a penetrating mode, and the second connecting assembly comprises a double-end stud. The first connecting assembly and the second connecting assembly can bear partial load between the upper cover shell and the operation box shell, the first connecting assembly comprises a hollow positioning pin and a fastening bolt, and fastening points are increased, the sealing effect is improved, and the oil leakage risk is reduced under the condition that the overall punching number is not increased; the utility model has a more compact structure, occupies less joint surface area, and can meet the requirements of guiding, positioning and connecting at the same time.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, specifically to a gearbox control box, a gearbox, and an automobile. Background Technology

[0002] Most gearbox control mechanisms are equipped with left or right control, or both. The control mechanism is located inside the control box. Usually, in addition to using solid locating pins, the control box cover and the control box housing are also fastened with bolts. This connection structure design requires multiple positioning points. However, due to the small overall size and compact space of the control box, the multiple positioning points not only occupy the mating surface of the parts, but also increase the risk of oil leakage at the positioning points. Therefore, improving the connection and positioning structure between the control box cover and the control box is of great significance. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a transmission control box, transmission and automobile, so as to solve the technical problems of the control box housing and the upper cover housing having many positioning points, occupying a large space and having the risk of oil leakage in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A transmission control box includes a control box housing and a top cover housing, wherein the control box housing is detachably connected to the top cover housing by means of a connecting mechanism, the connecting mechanism including a first connecting component and a second connecting component;

[0006] The first connecting assembly includes a hollow positioning pin and a fastening bolt coaxially passing through the hollow positioning pin. The lower end of the hollow positioning pin passes through a first through hole in the control box housing and then passes through the contact surface between the control box housing and the upper cover housing before entering a second through hole in the upper cover housing. The lower end of the fastening bolt passes through the hollow positioning pin and is threadedly connected to the second through hole.

[0007] The second connecting component includes a double-ended stud. The lower end of the double-ended stud passes through a fourth through hole in the control box housing and then through a third through hole in the upper cover housing after passing through the contact surface between the control box housing and the upper cover housing. The lower end of the double-ended stud is threadedly connected to the third through hole, and the upper end of the double-ended stud passes through the fourth through hole and is threadedly connected to a lock nut.

[0008] This utility model also has the following technical features:

[0009] Specifically, the first through hole includes a first hole segment and a second hole segment that are coaxially connected, and a first stepped surface is provided at the connection between the first hole segment and the second hole segment for limiting the upper end face of the hollow positioning pin.

[0010] Furthermore, the second through hole includes a third hole segment and a fourth hole segment that are coaxially connected, and a second stepped surface is provided at the connection between the third hole segment and the fourth hole segment for limiting the lower end face of the hollow positioning pin.

[0011] Furthermore, the second hole segment and the third hole segment are coaxially connected with the same diameter.

[0012] Furthermore, there are two first through holes, which are arranged diagonally along the control box housing.

[0013] Furthermore, there are two fourth through holes, which are arranged diagonally along the control box housing.

[0014] Furthermore, the inner diameter of the hollow locating pin matches the outer diameter of the fastening bolt.

[0015] This utility model also protects a transmission, including the aforementioned transmission control box.

[0016] This utility model also protects an automobile, including the aforementioned transmission.

[0017] Compared with the prior art, the present invention has the following technical advantages:

[0018] (1) The present invention is provided with a first connecting component and a second connecting component. While achieving positioning, the first connecting component and the second connecting component can bear part of the load between the upper cover housing and the control box housing. The first connecting component includes a hollow positioning pin and a fastening bolt. Without increasing the overall number of holes, the fastening points are increased, the sealing effect is improved, and the risk of oil leakage is reduced.

[0019] (2) This utility model is lightweight, has a more compact structure, occupies less joint surface area, and has a lower cost. It can simultaneously meet the requirements of guidance, positioning and connection, and has a low manufacturing cost, making it worthy of promotion. Attached Figure Description

[0020] Figure 1 This is a top view of the present invention;

[0021] Figure 2 This is a schematic diagram of the first connecting component structure;

[0022] Figure 3 This is a schematic diagram of the second connecting component structure;

[0023] Figure 4 This is a partial structural cross-sectional view I of the present invention;

[0024] Figure 5 This is a partial structural cross-sectional view II of the present invention.

[0025] The labels in the diagram represent:

[0026] 1-Control box housing, 2-Upper cover housing, 3-Connecting mechanism; 11-First through hole, 12-Fourth through hole; 21-Second through hole, 22-Third through hole; 31-First connecting assembly, 32-Second connecting assembly; 111-First hole section, 112-Second hole section, 113-First stepped surface; 211-Third hole section, 212-Fourth hole section, 213-Second stepped surface; 311-Hollow positioning pin, 312-Fasting bolt, 321-Double-ended stud, 322-Locking nut. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, all components in this utility model are components known in the prior art.

[0028] The terms “upper,” “lower,” “front,” and “rear” used in this utility model are for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. “Inner” and “outer” refer to the inner and outer contours of the corresponding components, and the above terms should not be construed as limitations on this utility model.

[0029] In this invention, unless otherwise stated, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] The present invention will be further described in detail below with reference to the embodiments.

[0031] Example 1

[0032] Following the above technical solution, such as Figures 1 to 4As shown, this embodiment provides a transmission control box, including a control box housing 1 and a top cover housing 2. The control box housing 1 is disposed on the top cover housing 2, and the control box housing 1 is detachably connected to the top cover housing 2 by means of a connecting mechanism 3. The connecting mechanism 3 includes a first connecting component 31 and a second connecting component 32. The first connecting component 31 includes a hollow positioning pin 311 and a fastening bolt 312 coaxially passing through the hollow positioning pin 311. The lower end of the hollow positioning pin 311 passes through a first through hole 11 opened on the control box housing 1, and after passing through the contact surface between the control box housing 1 and the top cover housing 2, it passes into a second through hole 21 opened on the top cover housing 2. The lower end of the fastening bolt 312 passes through the hollow positioning pin 311 and is threadedly connected to the second through hole 21.

[0033] The first through hole 11 and the second through hole 21 are in one-to-one correspondence and have the same number. Both the first through hole 11 and the second through hole 21 are cylindrical through holes.

[0034] To improve sealing, a gasket is also provided between the fastening bolt 312 and the control box housing 1.

[0035] By using the first connecting component 31, the control box housing 1 and the upper cover housing 2 are positioned and fastened by the fastening bolts 312. While keeping the total number of holes unchanged, the number of fastening points is increased, which improves the overall sealing effect of the control box and reduces the risk of oil leakage.

[0036] like Figure 3 As shown, the second connecting component 32 includes a double-ended stud 321. Both ends of the double-ended stud 321 have external threads of a certain length. The lower end of the double-ended stud 321 passes through a fourth through hole 12 opened on the control box housing 1, and after passing through the contact surface between the control box housing 1 and the upper cover housing 2, it passes through a third through hole 22 opened on the upper cover housing 2. The lower end of the double-ended stud 321 is threadedly connected to the third through hole 22, and the upper end of the double-ended stud 321 passes through the fourth through hole 12 and is threadedly connected to the locking nut 322.

[0037] The third through hole 22 and the fourth through hole 12 are in one-to-one correspondence and are equal in number, and both the third through hole 22 and the fourth through hole 12 are cylindrical through holes. The double-ended stud 321 can also serve as a guide during assembly.

[0038] As a preferred embodiment of this invention, such as Figure 3 As shown, the first through hole 11 includes a first hole section 111 and a second hole section 112 that are coaxially connected. A first stepped surface 113 for limiting the upper end face of the hollow positioning pin 311 is provided at the connection between the first hole section 111 and the second hole section 112.

[0039] As a preferred embodiment, the second through hole 21 includes a third hole segment 211 and a fourth hole segment 212 that are coaxially connected. A second stepped surface 213 for limiting the lower end face of the hollow positioning pin 311 is provided at the connection between the third hole segment 211 and the fourth hole segment 212.

[0040] As a preferred embodiment, the second hole segment 112 and the third hole segment 211 are coaxially connected with the same diameter to form a positioning expansion hole. The hollow positioning pin 311 is embedded in the positioning expansion hole, and the height of the positioning expansion hole matches the axial dimension of the hollow positioning pin 31.

[0041] As a preferred embodiment, there are two first through holes 11, which are arranged along the diagonal of the control box housing 1.

[0042] As a preferred embodiment, there are two fourth through holes 12, which are arranged along the diagonal of the control box housing 1.

[0043] As a preferred embodiment, the inner diameter of the hollow locating pin 311 matches the outer diameter of the fastening bolt 312.

[0044] In this invention, during installation and positioning, the hollow positioning pin 311 is first placed in the second through hole 21 of the upper cover housing 2, and then the control box housing 1 is positioned by the hollow positioning pin 311. Then, the fastening bolt 312 is inserted into the hollow positioning pin 311 and tightened; the double-ended stud 321 is inserted into the fourth through hole 12 and tightened; finally, the locking nut 322 is tightened. In this way, the control box housing 1 and the upper cover housing 2 can be effectively positioned without the use of other tools, making installation and positioning convenient, improving assembly efficiency, and effectively preventing oil leakage.

[0045] The transmission control box provided in this embodiment can be used in a transmission.

[0046] The transmission equipped with the transmission control box provided in this embodiment can be applied to automobiles.

[0047] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A transmission control box, comprising a control box housing (1) and a top cover housing (2), characterized in that, The control box housing (1) is detachably connected to the upper cover housing (2) by means of a connecting mechanism (3), the connecting mechanism (3) including a first connecting component (31) and a second connecting component (32). The first connecting assembly (31) includes a hollow positioning pin (311) and a fastening bolt (312) coaxially passing through the hollow positioning pin (311). The lower end of the hollow positioning pin (311) passes through a first through hole (11) opened on the control box housing (1) and passes through the contact surface between the control box housing (1) and the upper cover housing (2) before entering a second through hole (21) opened on the upper cover housing (2). The lower end of the fastening bolt (312) passes through the hollow positioning pin (311) and is threadedly connected to the second through hole (21). The second connecting component (32) includes a double-ended stud (321). The lower end of the double-ended stud (321) passes through a fourth through hole (12) opened on the control box housing (1) and passes through the contact surface between the control box housing (1) and the upper cover housing (2) before entering a third through hole (22) opened on the upper cover housing (2). The lower end of the double-ended stud (321) is threadedly connected to the third through hole (22), and the upper end of the double-ended stud (321) passes through the fourth through hole (12) and is threadedly connected to the lock nut (322).

2. The transmission control box as described in claim 1, characterized in that, The first through hole (11) includes a first hole segment (111) and a second hole segment (112) that are coaxially connected. A first stepped surface (113) for limiting the upper end face of the hollow positioning pin (311) is provided at the connection between the first hole segment (111) and the second hole segment (112).

3. The transmission control box as described in claim 2, characterized in that, The second through hole (21) includes a third hole section (211) and a fourth hole section (212) that are coaxially connected. The connection between the third hole section (211) and the fourth hole section (212) is provided with a second stepped surface (213) for limiting the lower end face of the hollow positioning pin (311).

4. The transmission control box as described in claim 3, characterized in that, The second hole segment (112) and the third hole segment (211) are coaxially connected with the same diameter.

5. The transmission control box as described in claim 1, characterized in that, There are two first through holes (11), and the two first through holes (11) are arranged along the diagonal of the control box housing (1).

6. The transmission control box as claimed in claim 1, characterized in that, There are two fourth through holes (12), and the two fourth through holes (12) are arranged along the diagonal of the control box housing (1).

7. The transmission control box as claimed in claim 1, characterized in that, The inner diameter of the hollow positioning pin (311) matches the outer diameter of the fastening bolt (312).

8. A transmission, characterized in that, Includes the transmission control box as described in any one of claims 1 to 7.

9. A car, characterized in that, Including the transmission as described in claim 8.

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