Flywheel shell drainage structure

Abstract

The utility model relates to battery bipolar plate structure technical field provides a flywheel shell drainage structure, including setting in the flywheel shell bottom end's thread hole, installs clean screw plug in the thread hole, the central opening drainage outlet of clean screw plug, the pin hole sets up the split pin, the pin hole top sets up the taper groove, the thread hole top sets up the fillet, make the flywheel shell can give consideration to drainage function and the function of blocking silt simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, specifically to a flywheel housing drainage structure. Background Technology

[0002] The flywheel housing is used to connect the engine block and the gearbox, and supports the engine. It contains parts or sensor components. The engine may be exposed on the vehicle. In rainy weather, water may accumulate in parts of the flywheel housing, causing problems such as rust on parts and damage to sensor components. Therefore, in order to drain water in a timely manner, existing flywheel housings are equipped with drainage grooves. For example, an engine flywheel housing with announcement number CN201706143 U has a drainage groove on the top of the front end face of the flywheel housing, a longitudinal drainage groove on the transverse main reinforcing rib on the front end face, and a transverse drainage groove on the longitudinal main reinforcing rib. The groove is deep enough to reach the height of the radial reinforcing rib, so as to maintain the continuity of the main reinforcing rib and to draw out the water accumulated at the top along the drainage groove.

[0003] Although the aforementioned drainage ditch can automatically and promptly drain accumulated water, the flywheel housing works in a paddy field, which means that the lowest part of the flywheel housing is in an environment of silt and turbid water, resulting in a large amount of mud and sand entering the flywheel housing. Furthermore, the existing drainage ditch outlet is not sealed, which means that while draining accumulated water, it cannot prevent mud and sand from entering the cavity. Utility Model Content

[0004] The purpose of this invention is to provide a flywheel housing drainage structure that can improve the technical problem that the flywheel housing cannot prevent mud and sand from entering the cavity while draining accumulated water.

[0005] To achieve the above objectives, a flywheel housing drainage structure includes a threaded hole at the bottom of the flywheel housing, a cleaning plug installed in the threaded hole, a drain outlet at the center of the cleaning plug, a cotter pin in the drain outlet, a tapered groove at the top of the drain outlet, and a rounded corner at the top of the threaded hole.

[0006] A further configuration involves threads on the sidewall of the cleaning plug, allowing the cleaning plug to be installed into the threaded hole via these threads.

[0007] Further configuration involves the drain outlet diameter being larger than the cotter pin inner diameter, and the drain outlet cross-section being circular.

[0008] A further configuration is provided, wherein a bending head is provided at the top of the cotter pin, the bending head being disposed within the inner cavity of the flywheel housing, and the width of the bending head being greater than the width of the cotter pin.

[0009] A further modification involves installing a stop at the bottom of the cleaning screw plug.

[0010] Further configured such that the top wall of the stop block contacts the bottom wall of the flywheel housing.

[0011] A further configuration is made such that the width of the baffle is greater than the diameter of the drain outlet.

[0012] A further configuration is provided where a gap is set between the conical groove and the rounded corner, and the width of the conical groove is greater than the width of the rounded corner.

[0013] Further, the width of the tapered groove is set to be greater than the width of the cotter pin.

[0014] Further configured, the cotter pin is able to rotate along the drain outlet.

[0015] The beneficial effects of one or more of the above technical solutions: This utility model is applicable to the engine of paddy field operation machinery. A drain port is added to the cleaning screw plug, and a cotter pin passes through the drain port. This ensures that the condensate in the cavity flows out of the cavity through the drain port along the cotter pin, while preventing a large amount of mud and sand from entering the cavity through the drain port of the cleaning screw plug during operation. This allows the flywheel housing to simultaneously perform the functions of drainage and mud and sand blocking. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0017] Figure 1 This is a schematic diagram of the installation structure of this utility model.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure at point AA.

[0019] Figure 3 This is a schematic diagram of the disassembled structure of this utility model.

[0020] In the diagram, 1 is a cotter pin; 2 is a cleaning plug; 3 is a flywheel housing; 4 is a rounded corner; 5 is a drain outlet; 6 is a threaded hole; 7 is a tapered groove; 9 is an elbow; 10 is an inner cavity; and 11 is a stop block. Detailed Implementation

[0021] The specific implementation method of this embodiment will now be described with reference to the accompanying drawings.

[0022] Reference Figure 1 A flywheel housing drainage structure, referenced Figure 1 It includes a threaded hole 6 at the bottom of the flywheel housing 3, a cleaning plug 2 installed in the threaded hole 6, a drain port 5 in the center of the cleaning plug 2, a cotter pin 1 in the drain port 5, a tapered groove 7 at the top of the drain port 5, and a rounded corner 4 at the top of the threaded hole 6.

[0023] The cleaning plug 2 has threads on its side wall. The cleaning plug 2 is installed in the threaded hole 6 through the threads. Pipe threads can be used. Pipe threads have a certain sealing and load-bearing capacity to ensure that mud and sand will not enter between the cleaning plug 2 and the threaded hole 6.

[0024] The diameter of the drain outlet 5 is larger than the inner diameter of the cotter pin 1, so that the cotter pin 1 can be easily inserted into the drain outlet 5 during installation.

[0025] A bending head 9 is provided at the top of the cotter pin 1. The bending head 9 is located in the inner cavity 10 of the flywheel housing 3. After the bending head 9 is located in the inner cavity 10 of the flywheel housing 3, there is still a gap between the side wall of the cotter pin 1 and the drain outlet 5, ensuring that the accumulated water can flow out along the cotter pin 1.

[0026] A stop 11 is provided at the bottom of the cleaning plug 2. The top wall of the stop 11 contacts the bottom wall of the flywheel housing 3. The width of the stop 11 is greater than the diameter of the drain outlet 5. After the cleaning plug 2 is tightened in the threaded hole 6, the stop 11 is in close contact with the bottom wall of the flywheel housing 3, further preventing water leakage at the threaded connection between the cleaning plug 2 and the threaded hole 6.

[0027] A gap is set between the conical groove 7 and the rounded corner 4. The width of the conical groove 7 is greater than the width of the rounded corner 4. The width of the conical groove 7 is greater than the width of the cotter pin 1. A rounded corner 4 is added to the upper end of the threaded hole 6 at the lowest point of the flywheel housing 3 to ensure that the threaded hole 6 is at the lowest point of the flywheel housing 3. A conical groove 7 is opened at the top of the drain outlet 5 to ensure water collection capacity.

[0028] Because there is a gap between the side wall of the cotter pin 1 and the drain outlet 5, smaller particles of dust and sand can get stuck between the cotter pin 1 and the drain outlet 5. Therefore, when it is necessary to clean the sand, rotate the cotter pin 1 along the drain outlet 5. By manually rotating the cotter pin 1, the dust and sand accumulated at the bottom of the flywheel housing 3 can be discharged.

[0029] The working principle of drainage and silt removal is as follows: A rounded corner 4 is added to the upper end of the threaded hole 6 at the lowest point of the flywheel housing 3 to ensure that the threaded hole 6 is at the lowest point of the flywheel housing 3. A conical groove 7 is opened at the top of the drain outlet 5 to ensure water collection capacity and facilitate the flow of accumulated water from the rounded corner 4 down along the cotter pin 1. Because the bent head 9 is set to ensure that dust and mud are blocked below the bent head 9 after entering from below, the flywheel and the connecting transmission system operate in a relatively dry and clean environment, so that the flywheel housing 3 can simultaneously take into account the functions of drainage and blocking mud and sand.

[0030] When it is necessary to clean the mud and sand, the dust, mud and sand accumulated at the bottom of the flywheel housing 3 can be discharged by rotating the cotter pin 1, ensuring the working environment inside the cavity.

[0031] Although the embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A flywheel housing drainage structure, characterized in that, It includes a threaded hole at the bottom of the flywheel housing, a cleaning plug installed in the threaded hole, a drain outlet in the center of the cleaning plug, a cotter pin in the drain outlet, a tapered groove at the top of the drain outlet, and a rounded corner at the top of the threaded hole.

2. The flywheel housing drainage structure according to claim 1, characterized in that, The cleaning plug has threads on its sidewall, and the cleaning plug is installed in the threaded hole through the threads.

3. The flywheel housing drainage structure according to claim 1, characterized in that, The diameter of the drain outlet is larger than the inner diameter of the cotter pin.

4. The flywheel housing drainage structure according to claim 1, characterized in that, A bending head is provided at the top of the cotter pin, and the bending head is located in the inner cavity of the flywheel housing.

5. The flywheel housing drainage structure according to claim 1, characterized in that, A stopper is installed at the bottom of the cleaning screw plug.

6. The flywheel housing drainage structure according to claim 5, characterized in that, The top wall of the stop block is in contact with the bottom wall of the flywheel housing.

7. A flywheel housing drainage structure according to claim 5, characterized in that, The width of the baffle is greater than the diameter of the drain outlet.

8. A flywheel housing drainage structure according to claim 1, characterized in that, A gap is provided between the conical groove and the rounded corner, and the width of the conical groove is greater than the width of the rounded corner.

9. A flywheel housing drainage structure according to claim 1, characterized in that, The width of the conical groove is greater than the width of the cotter pin.

10. A flywheel housing drainage structure according to claim 1, characterized in that, The cotter pin can rotate along the drain outlet.

Images