Gearbox top cover assembly mechanism

Abstract

The utility model discloses a gearbox top cover assembly mechanism which comprises a top cover body, and a gearbox body is arranged below the top cover body. The sealing mechanism comprises an annular protruding block fixedly connected to the upper end of a gearbox body, an annular groove is formed in the lower end of the top cover body, and a sealing gasket is fixedly connected to the inner wall of the annular groove. And the buckling mechanism is used for realizing mounting and dismounting between the top cover body and the gearbox body. According to the equipment, aiming at the use problem, a sealing mechanism is arranged, the actual sealing effect is improved by inserting an annular convex block into an annular groove and matching with a sealing gasket, a buckling mechanism is further arranged, and two limiting blocks are inserted into corresponding limiting grooves, so that mounting and dismounting of the top cover body can be conveniently and rapidly achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of a gearbox top cover, in particular to a gearbox top cover assembly mechanism. Background Art

[0002] The gearbox is one of the devices on the car. It is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio of the output shaft and the input shaft in a fixed or step-by-step manner. The gearbox cover is one of the components on the gearbox, which can protect the mechanism inside the gearbox.

[0003] At present, when the gearbox top cover is in use, it is generally installed together with the gearbox housing by multiple bolts, and a sealing gasket is set at the connection to ensure the sealing of the gearbox, so as to prevent external dust and moisture from entering the interior of the gearbox. However, these gearbox top covers only achieve sealing effect through sealing gaskets, and their sealing effect is relatively general. In addition, the installation method of multiple bolts is also relatively cumbersome, and the actual installation and disassembly efficiency is low. Therefore, in order to solve these problems, we need to consider designing a gearbox top cover assembly mechanism. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a gearbox top cover assembly mechanism, which is provided with a sealing mechanism to improve the actual sealing effect by inserting the annular protrusion into the annular groove and cooperating with the sealing gasket, and also provides a snap mechanism, which can conveniently and quickly realize the installation and removal of the top cover body by inserting two limit blocks into the corresponding limit grooves.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gearbox top cover assembly mechanism comprises a top cover body, a gearbox case body is arranged below the top cover body; a sealing mechanism, the sealing mechanism comprises an annular protrusion fixedly connected to the upper end of the gearbox case body, an annular groove is formed at the lower end of the top cover body, a sealing gasket is fixedly connected to the inner wall of the annular groove; and a snap mechanism, the snap mechanism is used to realize the installation and disassembly between the top cover body and the gearbox case body.

[0007] Preferably, the cross-sections of the annular protrusion and the annular groove are both trapezoidal, and the annular protrusion and the annular groove match each other.

[0008] Preferably, an annular sound insulation cotton is fixedly connected to the inner wall of the top cover body.

[0009] Preferably, the buckle mechanism comprises fixing blocks respectively fixedly connected to the left and right sides of the top cover body, the two fixing blocks are horizontally provided with limiting grooves, and the opposite sides of the two fixing blocks are fixedly connected with handles.

[0010] Preferably, rectangular inner grooves are horizontally opened on both sides of the gearbox housing, and limit blocks that can move left and right are slidably connected in the two rectangular inner grooves, and the facing sides of the two limit blocks are elastically connected to the corresponding rectangular inner grooves through two springs.

[0011] Preferably, the opposite back surfaces of the two limit blocks are both arranged as arc surfaces, and the two limit blocks are both matched with the corresponding limit grooves.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] A sealing mechanism is provided, which is achieved by inserting the annular protrusion into the annular groove, and the cross-sections of the annular protrusion and the annular groove are both trapezoidal, and in combination with the use of a sealing gasket, the actual sealing effect is stronger than when sealing is achieved only by the sealing gasket. A snap mechanism is also provided, which can automatically insert the two limit blocks into the corresponding limit grooves by moving the two fixed blocks downward in combination with four springs, thereby completing the installation of the top cover body and the gearbox case, and the subsequent disassembly is also relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a gearbox top cover assembly mechanism proposed by the utility model;

[0015] Figure 2 for Figure 1 A cross-sectional view of

[0016] Figure 3 for Figure 2 A magnified image of point A;

[0017] Figure 4 for Figure 2 Enlarged view of point B.

[0018] In the figure: 1 top cover body, 2 gearbox housing, 3 annular protrusion, 4 annular groove, 5 sealing gasket, 6 annular sound insulation cotton, 7 fixing block, 8 limiting groove, 9 handle, 10 rectangular inner groove, 11 limiting block, 12 spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 4A gearbox top cover assembly mechanism includes a top cover body 1, a gearbox case 2 is arranged below the top cover body 1, and an annular sound insulation cotton 6 is fixedly connected to the inner wall of the top cover body 1. The annular sound insulation cotton 6 can soundproof the noise generated in the gearbox, thereby reducing the spread of the noise;

[0021] The sealing mechanism also includes an annular protrusion 3 fixedly connected to the upper end of the gearbox housing 2, an annular groove 4 is provided at the lower end of the top cover body 1, the cross sections of the annular protrusion 3 and the annular groove 4 are both trapezoidal, a sealing gasket 5 is fixedly connected to the inner wall of the annular groove 4, the annular protrusion 3 and the annular groove 4 cooperate, and the annular protrusion 3 is inserted into the annular groove 4 so that it fits tightly with the sealing gasket 5, thereby achieving sealing of the entire device;

[0022] Among them, it also includes a snap mechanism, which is used to realize the installation and disassembly between the top cover body 1 and the gearbox case 2. The snap mechanism includes fixed blocks 7 respectively fixedly connected to the left and right sides of the top cover body 1, and the lower end parts of the two fixed blocks 7 are elastic materials that can be deformed by force. The two fixed blocks 7 are horizontally provided with limit grooves 8, and the opposite sides of the two fixed blocks 7 are fixedly connected with handles 9. The left and right sides of the gearbox case 2 are horizontally provided with rectangular inner grooves 10, and the two rectangular inner grooves 10 are slidably connected with limit blocks 11 that can move left and right, and the opposite sides of the two limit blocks 11 are elastically connected to the corresponding rectangular inner grooves 10 through two springs 12;

[0023] Among them, the opposite back surfaces of the two limit blocks 11 are set to arc surfaces. When the fixing block 7 moves downward and abuts against the upper end of the limit block 11, due to the arc surface design, the limit block 11 will automatically move into the rectangular inner groove 10. The two limit blocks 11 are matched with the corresponding limit grooves 8. By respectively passing the two limit blocks 11 through the corresponding limit grooves 8, a stable connection between the top cover body 1 and the gearbox case 2 is achieved.

[0024] In the utility model, when in use, the annular groove 4 at the lower end of the top cover body 1 is aligned with the annular protrusion 3 on the gearbox case 2 and inserted. During the insertion process, the lower ends of the two fixing blocks 7 will contact the corresponding limit blocks 11 respectively. Since the opposite back surfaces of the two limit blocks 11 are both arc surfaces, the two limit blocks 11 will automatically move into the corresponding rectangular inner grooves 10 when subjected to pressure from above. At this time, the four springs 12 will be compressed. In the subsequent insertion process, when the two limit grooves 8 move down to the right of the corresponding limit blocks 11 respectively, When the top cover body 1 and the gearbox housing 2 are installed, the two limit blocks 11 will be moved in opposite directions by the elastic action of the corresponding springs 12 and penetrate the corresponding limit grooves 8, thus completing the installation of the top cover body 1 and the gearbox housing 2. When disassembly is required later, it is only necessary to lightly push the two limit blocks 11 to make them slightly retract into the corresponding rectangular inner grooves 10, and at the same time pull the two handles 9 to drive the lower end parts of the two fixing blocks 7 to slightly deform in opposite directions until the two limit blocks 11 are separated from the corresponding limit grooves 8. The top cover body 1 can be removed, and the entire installation and disassembly process is convenient and quick;

[0025] It is worth mentioning that when the top cover body 1 and the gearbox case 2 are installed together, the annular protrusion 3 will be inserted into the annular groove 4 and fit tightly with the sealing gasket 5. Since the cross-sections of the annular protrusion 3 and the annular groove 4 are both trapezoidal, combined with the use of the sealing gasket 5, the actual sealing effect is stronger than that of traditional sealing.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gearbox top cover assembly mechanism, characterized in that: include: A top cover body (1), wherein a gearbox housing (2) is arranged below the top cover body (1); A sealing mechanism, the sealing mechanism comprising an annular protrusion (3) fixedly connected to the upper end of the gearbox housing (2), an annular groove (4) being provided at the lower end of the top cover body (1), and a sealing gasket (5) being fixedly connected to the inner wall of the annular groove (4); A snap mechanism is used to realize installation and disassembly between the top cover body (1) and the gearbox housing (2).

2. A gearbox top cover assembly mechanism according to claim 1, characterized in that: The cross sections of the annular protrusion (3) and the annular groove (4) are both trapezoidal, and the annular protrusion (3) and the annular groove (4) are matched.

3. The gearbox top cover assembly mechanism according to claim 1, characterized in that: An annular sound insulation cotton (6) is fixedly connected to the inner wall of the top cover body (1).

4. The gearbox top cover assembly mechanism according to claim 1, characterized in that: The buckle mechanism comprises fixed blocks (7) respectively fixedly connected to the left and right sides of the top cover body (1), the two fixed blocks (7) are both horizontally provided with limit grooves (8), and the opposite sides of the two fixed blocks (7) are both fixedly connected with handles (9).

5. The gearbox top cover assembly mechanism according to claim 1, characterized in that: Rectangular inner grooves (10) are horizontally provided on both left and right sides of the gearbox housing (2), and limit blocks (11) that can move left and right are slidably connected in the two rectangular inner grooves (10), and the facing sides of the two limit blocks (11) are elastically connected to the corresponding rectangular inner grooves (10) via two springs (12).

6. A gearbox top cover assembly mechanism according to claim 5, characterized in that: The opposite back surfaces of the two limit blocks (11) are both arranged as arc surfaces, and the two limit blocks (11) are both matched with the corresponding limit grooves (8).

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