Sealing structure for preventing oil leakage of transmission

Abstract

The utility model relates to the technical field of transmission sealing, and discloses a transmission oil leakage prevention sealing structure which comprises a lower shell, an upper shell is installed on the top of the lower shell, the lower shell and the upper shell are matched with each other, connecting openings are formed in the two symmetrical sides of the surface of the lower shell and the two symmetrical sides of the surface of the upper shell, and sealing mechanisms are arranged on the two sides, making contact with each other, of the lower shell and the upper shell. Connecting bins are arranged in the lower shell and the upper shell correspondingly, reduction gear sets are arranged in the connecting bins, two rotating shafts are arranged on the surfaces of the reduction gear sets, the two rotating shafts are arranged in the two connecting openings in a sleeved mode correspondingly, and second connecting blocks are fixedly connected to the two symmetrical sides of the surface of the lower shell correspondingly; and fixing mechanisms are arranged in the two second connecting blocks. Through the arrangement of the fixing mechanisms on the two sides of the device, the device can be disassembled and assembled more conveniently, and it is also guaranteed that in the using process, due to the fact that screws are loosened, the sealing performance of the connector is not enough, and use of the device is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission sealing, in particular to a sealing structure for preventing transmission oil leakage. Background Art

[0002] A transmission is a device used to adjust the transmission ratio of a mechanical device. In the automotive field, the transmission is an important component used to control the engine output speed and vehicle speed. It can adjust the proportional relationship between the engine output speed and the wheel speed by changing the gear ratio, thereby achieving functions such as acceleration, deceleration and smooth driving. Automobile transmissions are generally composed of multiple gears, and different gear combinations can be selected through manual or automatic operation to adapt to different driving conditions and needs. Common types of transmissions include manual transmissions, automatic transmissions, and continuous transmissions. Transmissions are not only widely used in automobiles, but also in other mechanical devices, such as industrial machinery, ships, aircraft, etc. It plays an important role in the performance, efficiency and reliability of mechanical devices.

[0003] Common transmission seals include oil seals, gaskets, etc. These seals are usually made of wear-resistant, oil-resistant, and high-temperature resistant materials to ensure sealing effect and service life. However, most existing transmissions use fixing screws to fix the upper and lower shells of the transmission. However, since the transmission will generate a lot of vibration and shaking when working, the fixing screws will become loose after a long time, which will reduce the sealing of the transmission and cause oil to leak out of the transmission, thereby affecting the service life of the transmission. Therefore, it is urgent to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a sealing structure for preventing transmission oil leakage.

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

[0006] A sealing structure for preventing transmission oil leakage, comprising a lower shell, an upper shell is installed on the top of the lower shell, the lower shell and the upper shell cooperate with each other, connecting ports are opened on both symmetrical sides of the surfaces of the lower shell and the upper shell, sealing mechanisms are arranged on both sides of the lower shell and the upper shell contacting each other, connecting chambers are arranged inside the lower shell and the upper shell, a reduction gear set is arranged inside the connecting chamber, two rotating shafts are arranged on the surface of the reduction gear set, the two rotating shafts are respectively sleeved inside the two connecting ports, second connecting blocks are fixedly connected on both symmetrical sides of the surface of the lower shell, and fixing mechanisms are arranged inside the two second connecting blocks, by setting the fixing mechanisms on both sides of the device, the device can be more convenient to disassemble and assemble, and the loss of screws during disassembly can be prevented, and sealing of the interface caused by loosening of the screws during use can be ensured, thereby affecting the use of the device.

[0007] As a further solution of the utility model, the sealing mechanism includes a first sealing gasket, and a first sealing groove is provided on the side where the lower shell and the upper shell contact each other, the first sealing gasket is arranged between the lower shell and the upper shell, the first sealing gasket is arranged inside the first sealing groove, a second sealing groove is provided inside the connecting port, an arc-shaped sealing gasket is placed inside the second sealing groove, the arc-shaped sealing gasket is connected to the first sealing gasket, and is used to seal the interface, thereby preventing oil stains from seeping out of the temporal part of the device.

[0008] As a further solution of the present invention, the fixing mechanism includes a slider, two sliding grooves are horizontally provided inside the second connecting block, and the slider is provided with two, and the two sliders slide inside the two sliding grooves respectively, and blocks are fixedly connected to the opposite sides of the top of the two sliders, and a screw rod is rotated inside the second connecting block, and the screw rod is horizontally inserted into the second connecting block, and the screw rod is sleeved inside the two sliders, and the two sliders are evenly screwed together, and nuts are rotated at both ends of the second connecting block, and the two nuts are fixedly connected to the two ends of the screw rod respectively, and the first connecting block is fixedly connected to the surface of the upper shell, and two slots are horizontally provided inside the first connecting block, and the bottoms of the two slots are inclined, and the two blocks slide inside the two slots respectively, for fixing the lower shell and the upper shell, so that the connection between the lower shell and the upper shell is more precise, and also prevents loosening during use.

[0009] The beneficial effects of the utility model are:

[0010] 1. When installing the device, the first sealing gasket and the arc-shaped sealing gasket are arranged to make the sealing between the lower shell and the upper shell better, thereby preventing the oil inside the device from leaking out.

[0011] 2. Through the interaction of the two sliders and the card block, under the action of the first connecting block, the lower shell and the upper shell can be connected to each other, and at the same time, the lower shell and the upper shell can fit more closely, thereby improving the sealing of the device and making the device more convenient to install or disassemble.

[0012] 3. By setting a fixing mechanism, the lower shell and the upper shell can be prevented from loosening during use, thereby improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a surface structure exploded view of a sealing structure for preventing transmission oil leakage proposed by the utility model;

[0014] Figure 2 A schematic diagram of the lower shell surface structure of a sealing structure for preventing transmission oil leakage proposed by the utility model;

[0015] Figure 3 A cross-sectional view of the lower shell surface structure of a sealing structure for preventing transmission oil leakage proposed by the utility model;

[0016] Figure 4 The utility model is a schematic diagram of a fixing mechanism of a sealing structure for preventing transmission oil leakage.

[0017] In the figure: 1. lower shell; 11. first sealing groove; 12. connecting port; 13. second sealing groove; 14. connecting compartment; 2. upper shell; 21. first connecting block; 22. clamping groove; 3. first sealing gasket; 31. arc-shaped sealing gasket; 4. second connecting block; 41. slide groove; 5. reduction gear set; 6. slider; 61. clamping block; 7. screw rod; 71. nut. DETAILED DESCRIPTION

[0018] 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.

[0019] Reference Figure 1-Figure 4A sealing structure for preventing transmission oil leakage comprises a lower shell 1, an upper shell 2 is installed on the top of the lower shell 1, the lower shell 1 and the upper shell 2 cooperate with each other, connecting ports 12 are opened on both sides of the surfaces of the lower shell 1 and the upper shell 2 symmetrically, and sealing mechanisms are arranged on both sides of the contact between the lower shell 1 and the upper shell 2, connecting chambers 14 are arranged inside the lower shell 1 and the upper shell 2, a reduction gear set 5 is arranged inside the connecting chamber 14, two rotating shafts are arranged on the surface of the reduction gear set 5, and the two rotating shafts are respectively sleeved inside the two connecting ports 12, second connecting blocks 4 are fixedly connected on both sides of the surface of the lower shell 1 symmetrically, and fixing mechanisms are arranged inside the two second connecting blocks 4. By setting the fixing mechanisms on both sides of the device, the device can be more convenient to disassemble and assemble, and the loss of screws during disassembly can be prevented, and sealing of the interface caused by loosening of the screws during use can be ensured to affect the use of the device.

[0020] Reference Figure 1 and Figure 2 In a preferred embodiment, the sealing mechanism includes a first sealing gasket 3, a first sealing groove 11 is opened on the side where the lower shell 1 and the upper shell 2 contact each other, the first sealing gasket 3 is arranged between the lower shell 1 and the upper shell 2, the first sealing gasket 3 is arranged inside the first sealing groove 11, a second sealing groove 13 is opened inside the connecting port 12, an arc-shaped sealing gasket 31 is placed inside the second sealing groove 13, the arc-shaped sealing gasket 31 is connected to the first sealing gasket 3, and is used to seal the interface, so as to prevent oil stains from seeping out of the temporal part of the device.

[0021] Reference Figure 3 and Figure 4 In a preferred embodiment, the fixing mechanism includes a slider 6, two slide grooves 41 are horizontally opened inside the second connecting block 4, and the slider 6 is provided with two. The two sliders 6 slide in the two slide grooves 41 respectively, and the two sliders 6 are fixedly connected with blocks 61 on the opposite sides of the tops. A screw rod 7 is rotated inside the second connecting block 4, and the screw rod 7 is horizontally inserted into the second connecting block 4. The screw rod 7 is sleeved inside the two sliders 6, and the two sliders 6 are evenly matched with the screw rod 7. Nuts 71 are rotated at both ends of the second connecting block 4, and the two nuts 71 are fixedly connected to the two ends of the screw rod 7 respectively. A first connecting block 21 is fixedly connected to the surface of the upper shell 2, and two card grooves 22 are horizontally opened inside the first connecting block 21. The bottoms of the two card grooves 22 are inclined, and the two card blocks 61 slide in the two card grooves 22 respectively, for fixing the lower shell 1 and the upper shell 2, so that the connection between the lower shell 1 and the upper shell 2 is more precise, and also prevents loosening during use.

[0022] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: in actual use, through the setting of the fixing mechanism on both sides of the device, the device can be more convenient to disassemble and assemble, and at the same time, it also prevents the screws from being lost during disassembly, and also ensures that the screws are loosened during use, resulting in insufficient sealing at the interface, thereby affecting the use of the device. During installation, the arc-shaped sealing gasket 31 is placed inside the second sealing groove 13, and then the reduction gear set 5 is installed, and then the first sealing gasket 3 is placed inside the first sealing groove 11, and then the upper shell 2 is installed on the top of the lower shell 1. After completion, the nuts 71 on both sides of the lower shell 1 are turned to rotate the screw 7. 7 rotates, the two sliders 6 are driven to approach each other, and the two blocks 61 are slid into the two slots 22 respectively, and restrict the inside of the two slots 22. Since the bottoms of the two slots 22 are inclined, when the two sliders 6 and the blocks 61 approach each other and slide into the slots 22, the lower shell 1 and the upper shell 2 will fit more closely, thereby improving the sealing effect of the device. When the device needs to be dismantled, it is only necessary to rotate the two screw rods 7 and the nuts 71 to move the two sliders 6 and the blocks 61 away from each other, so that the two blocks 61 no longer restrict the inside of the slots 22, and then the lower shell 1 and the upper shell 2 can be separated, thereby improving the convenience of the device.

[0023] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sealing structure for preventing transmission oil leakage, comprising a lower shell (1), characterized in that: An upper shell (2) is installed on the top of the lower shell (1); the lower shell (1) and the upper shell (2) cooperate with each other; connection ports (12) are symmetrically provided on both sides of the surface of the lower shell (1) and the upper shell (2); sealing mechanisms are provided on both sides where the lower shell (1) and the upper shell (2) contact each other; connection chambers (14) are provided inside the lower shell (1) and the upper shell (2); a reduction gear set (5) is provided inside the connection chamber (14); two rotating shafts are provided on the surface of the reduction gear set (5); the two rotating shafts are respectively sleeved inside the two connection ports (12); second connection blocks (4) are fixedly connected on both sides of the surface of the lower shell (1); and fixing mechanisms are provided inside the two second connection blocks (4).

2. The sealing structure for preventing transmission oil leakage according to claim 1, characterized in that: The sealing mechanism comprises a first sealing gasket (3); a first sealing groove (11) is provided on the side where the lower shell (1) and the upper shell (2) contact each other; the first sealing gasket (3) is arranged between the lower shell (1) and the upper shell (2); and the first sealing gasket (3) is arranged inside the first sealing groove (11).

3. The sealing structure for preventing transmission oil leakage according to claim 2, characterized in that: A second sealing groove (13) is provided inside the connection port (12), an arc-shaped sealing gasket (31) is placed inside the second sealing groove (13), and the arc-shaped sealing gasket (31) is connected to the first sealing gasket (3).

4. The sealing structure for preventing transmission oil leakage according to claim 1, characterized in that: The fixing mechanism comprises a slider (6), two slide grooves (41) are horizontally provided inside the second connection block (4), two sliders (6) are provided, the two sliders (6) slide inside the two slide grooves (41) respectively, and the tops of the two sliders (6) are fixedly connected with clamping blocks (61) on opposite sides.

5. The sealing structure for preventing transmission oil leakage according to claim 4, characterized in that: A screw rod (7) is rotatable inside the second connecting block (4), the screw rod (7) is horizontally inserted into the second connecting block (4), the screw rod (7) is sleeved inside two sliding blocks (6), the two sliding blocks (6) are evenly matched with the screw rod (7), and nuts (71) are rotatable at both ends of the second connecting block (4), and the two nuts (71) are respectively fixedly connected to the two ends of the screw rod (7).

6. The sealing structure for preventing transmission oil leakage according to claim 5, characterized in that: A first connecting block (21) is fixedly connected to the surface of the upper shell (2), two slots (22) are horizontally provided inside the first connecting block (21), the bottoms of the two slots (22) are both inclined, and the two blocks (61) slide inside the two slots (22) respectively.

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