A crankshaft oil hole cleaning device

Abstract

This invention relates to crankshaft cleaning and provides a crankshaft oil hole cleaning device, including a fixed base, a flushing device connected to the fixed base, a spraying device communicating with the flushing device, and a driving device for driving the flushing device to rotate. The flushing device comprises multiple flushing components connected end-to-end. Each flushing component includes a sleeve, a through hole in the side wall of the sleeve, a spring plate disposed inside the through hole, and a pair of elastic elements respectively disposed at both ends of the inner wall of the sleeve. The width of the spring plate is smaller than the width of the through hole, and the length of the spring plate is greater than the length of the through hole. The end of the spring plate is connected to the elastic element. Bristles are provided on the outer side of the spring plate. This crankshaft oil hole cleaning device can efficiently clean crankshaft oil holes.

Description

Technical Field

[0001] This invention relates to the technical field of crankshaft cleaning, and more specifically, to a crankshaft oil hole cleaning device. Background Technology

[0002] Crankshaft oil holes are holes on the engine crankshaft, serving as oil passages, and are present in various gasoline and hybrid vehicle engines. The lubrication of moving parts such as the engine crankshaft, camshaft, and piston pins utilizes a forced lubrication system. This means the engine oil pump draws oil from the oil pan and distributes it through the main oil passages to each friction pair, ensuring lubrication, heat dissipation, and cleaning of the friction pairs.

[0003] After drilling, the crankshaft oil hole needs to be thoroughly cleaned to remove any metal debris inside. This prevents metal debris from entering the engine along with the lubricating oil and causing damage during subsequent use.

[0004] Common crankshaft cleaning methods include manual cleaning and machine cleaning, but both essentially involve inserting a brush with bristles into the oil holes and then cleaning them with a cleaning solution through high-speed rotation. However, traditional cleaning brushes are less efficient and usually require repeated cleaning. This is mainly because the interaction force between the brush and the inner wall of the oil hole is limited, and large-diameter brushes are difficult to insert smoothly into the oil holes. Summary of the Invention

[0005] The purpose of this invention is to provide a crankshaft oil hole cleaning device that can efficiently clean crankshaft oil holes.

[0006] The embodiments of the present invention are achieved through the following technical solutions: The crankshaft oil hole cleaning device of the present invention includes a fixed base, a flushing device connected to the fixed base, a spraying device communicating with the flushing device, and a driving device for driving the flushing device to rotate; the flushing device has a plurality of flushing components connected end to end, each flushing component including a sleeve, a through hole opened in the side wall of the sleeve, a spring piece disposed inside the through hole, and a pair of elastic elements respectively disposed at both ends of the inner wall of the sleeve; the width of the spring piece is smaller than the width of the through hole, the length of the spring piece is greater than the length of the through hole, and the end of the spring piece is connected to the elastic element; the outer side of the spring piece is provided with bristles.

[0007] Furthermore, the through holes on adjacent sleeves are arranged alternately.

[0008] Furthermore, the elastic element includes a spring, both ends of which are fixedly connected to the spring sheet.

[0009] Furthermore, the spraying device includes a spraying pipe inserted into the sleeve, a supply pipe rotatably connected to the end of the spraying pipe located outside the sleeve, and a pump body communicating with the supply pipe; the portion of the spraying pipe located inside the sleeve has multiple spraying holes.

[0010] Furthermore, the side wall of the spray pipe is provided with multiple limiting tubes, and a limiting rod is slidably provided inside the limiting tube. One end of the limiting rod located outside the limiting tube is fixedly connected to the spring piece; the axis of the limiting tube is perpendicular to the axis of the spray pipe.

[0011] Furthermore, both ends of the spray pipe are fixedly connected to the end of the sleeve.

[0012] Furthermore, the outer wall of the sleeve is provided with bristles.

[0013] Furthermore, the driving device includes a motor, a driving gear located on the output shaft of the motor, and a driven gear located on the outer side; the driving gear meshes with the driven gear.

[0014] Furthermore, adjacent sleeves are connected by threads.

[0015] The technical solution of this invention has at least the following advantages and beneficial effects: Before use, the crankshaft oil hole cleaning device of this invention requires connecting the flushing components to form a slender rod-shaped structure. Then, the flushing device is inserted into the oil hole of the crankshaft. The driving device drives the sleeve in the flushing device to rotate. At this time, the spraying device pumps the cleaning fluid into the sleeve. The high-pressure cleaning fluid impacts the spring sheet, forcing part of the spring sheet out from the through hole, allowing the spring sheet and its bristles to adhere tightly to the inner wall of the oil hole and flush it. When the rotation speed of the sleeve is reduced or the water pressure of the cleaning fluid is reduced, the spring sheet is pulled back into the sleeve by the elastic element. Thus, for oil holes of different diameters (mainly large-diameter oil holes), the rotation speed of the sleeve (mainly centrifugal force) and the water pressure of the cleaning fluid can be adjusted to push the spring sheet against the inner wall of the oil hole for flushing, significantly improving cleaning efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the crankshaft oil hole cleaning device provided in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the flushing component provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the sleeve provided in an embodiment of the present invention;

[0020] Figure 4 for Figure 1 Enlarged view of section A.

[0021] Icons: 11-Fixed base, 12-Drive device, 20-Flushing assembly, 21-Sleeve, 22-Through hole, 23-Spring, 24-Spring, 25-Spray pipe, 26-Spray hole, 27-Limiting tube, 28-Limiting rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Example

[0028] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 4 As shown, the crankshaft oil hole cleaning device of this embodiment includes a fixed base 11, a flushing device connected to the fixed base 11, a spraying device communicating with the flushing device, and a driving device 12 for driving the flushing device to rotate; the flushing device has multiple flushing components 20 connected end to end, each flushing component 20 including a sleeve 21, a through hole 22 opened on the side wall of the sleeve 21, a spring piece 23 disposed inside the through hole 22, and a pair of elastic members respectively disposed at both ends of the inner wall of the sleeve 21; the width of the spring piece 23 is smaller than the width of the through hole 22, the length of the spring piece 23 is greater than the length of the through hole 22, and the end of the spring piece 23 is connected to the elastic member; the outer side of the spring piece 23 is provided with bristles. Specifically, before use, the flushing components 20 need to be connected to form a slender rod-like structure. Then, the flushing device is inserted into the oil hole of the crankshaft. The drive device 12 drives the sleeve 21 in the flushing device to rotate. At this time, the spraying device pumps the cleaning fluid into the sleeve 21. The high-pressure cleaning fluid impacts the spring 23, forcing part of the spring 23 out of the through hole 22, so that the spring 23 and the bristles on the spring 23 can adhere tightly to the inner wall of the oil hole and flush the inner wall of the oil hole. When the rotation speed of the sleeve 21 is reduced or the water pressure of the cleaning fluid is reduced, the spring 23 will be pulled back into the sleeve 21 by the elastic element. In this way, for oil holes of different diameters (mainly large-diameter oil holes), the rotation speed (mainly centrifugal force) of the sleeve 21 and the water pressure of the cleaning fluid can be adjusted to push the spring 23 to press well against the inner wall of the oil hole for flushing, which can significantly improve the cleaning efficiency. It should be noted that workers can hold the fixed seat 11 by hand for cleaning operations, or a robotic arm can be used to clamp the fixed seat 11 for more automated cleaning.

[0029] In this embodiment, the through holes 22 on adjacent sleeves 21 are staggered. Specifically, this makes the rotation of the sleeves 21 more stable.

[0030] The elastic element in this embodiment includes a spring 24, both ends of which are fixedly connected to the spring sheet 23.

[0031] The spraying device in this embodiment includes a spraying pipe 25 inserted into the sleeve 21, a supply pipe rotatably connected to the end of the spraying pipe 25 located outside the sleeve 21, and a pump body communicating with the supply pipe; the portion of the spraying pipe 25 located inside the sleeve 21 has multiple spraying holes 26. Specifically, the spraying holes 26 are mainly oriented towards the spring piece 23, so that the cleaning fluid sprayed from the spraying holes 26 of the spraying pipe 25 can directly act on the spring piece 23, thereby better pushing the spring piece 23 out.

[0032] In this embodiment, the side wall of the spray pipe 25 is provided with multiple limiting tubes 27, and a limiting rod 28 is slidably provided inside the limiting tube 27. One end of the limiting rod 28 located outside the limiting tube 27 is fixedly connected to the spring piece 23; the axis of the limiting tube 27 is perpendicular to the axis of the spray pipe 25. Specifically, by limiting the spring piece 23 through the limiting tubes 27 and the limiting rods 28, the spring piece 23 can rotate more stably and has better support during the brushing process.

[0033] In this embodiment, both ends of the spray pipe 25 are fixedly connected to the end of the sleeve 21.

[0034] In this embodiment, the outer wall of the sleeve 21 is provided with bristles. Specifically, due to the large number of bristles and the complex structure, the bristles on the outer wall of the sleeve 21 and the outer wall of the spring piece 23 in this embodiment are not shown in the accompanying drawings.

[0035] The drive device 12 in this embodiment includes a motor, a drive gear located on the output shaft of the motor, and a driven gear located on the outer side; the drive gear meshes with the driven gear. Specifically, since a liquid supply pipe is connected to the end of the sleeve 21, the motor needs to be located on the side of the sleeve 21 and driven by gears.

[0036] In this embodiment, adjacent sleeves 21 are connected by threads. Specifically, this allows for better installation and enables the flushing assembly 20 to be replaced as needed.

[0037] In summary, the crankshaft oil hole cleaning device of this embodiment requires the flushing components 20 to be connected to form a slender rod-shaped structure before use. The flushing device is then inserted into the oil hole of the crankshaft. The drive device 12 drives the sleeve 21 in the flushing device to rotate. At this time, the spraying device pumps the cleaning fluid into the sleeve 21. The high-pressure cleaning fluid impacts the spring 23, forcing part of the spring 23 out of the through hole 22, allowing the spring 23 and its bristles to adhere tightly to the inner wall of the oil hole and flush it. When the rotation speed of the sleeve 21 is reduced or the water pressure of the cleaning fluid is reduced, the spring 23 is pulled back into the sleeve 21 by the elastic element. Thus, for oil holes of different diameters (mainly large-diameter oil holes), the rotation speed (mainly centrifugal force) of the sleeve 21 and the water pressure of the cleaning fluid can be adjusted to push the spring 23 to effectively flush the inner wall of the oil hole, significantly improving cleaning efficiency.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A crankshaft oil hole cleaning device, characterized in that: It includes a fixed base (11), a flushing device connected to the fixed base (11), a spraying device connected to the flushing device, and a drive device (12) for driving the flushing device to rotate. The flushing device includes multiple flushing components (20) connected end to end. Each flushing component (20) includes a sleeve (21), a through hole (22) opened on the side wall of the sleeve (21), a spring piece (23) disposed inside the through hole (22), and a pair of elastic members disposed at both ends of the inner wall of the sleeve (21). The width of the spring piece (23) is smaller than the width of the through hole (22), the length of the spring piece (23) is greater than the length of the through hole (22), and the end of the spring piece (23) is connected to the elastic member. The outer side of the spring piece (23) is provided with bristles; when the rotation speed of the sleeve (21) is reduced or the water pressure of the cleaning fluid is reduced, the spring piece (23) will be pulled back into the sleeve (21) by the elastic element. The spraying device includes a spraying pipe (25) inserted into the sleeve (21), a supply pipe rotatably connected to one end of the spraying pipe (25) located outside the sleeve (21), and a pump body communicating with the supply pipe; the portion of the spraying pipe (25) located inside the sleeve (21) has multiple spraying holes (26); The spray hole (26) is positioned toward the spring piece (23). The cleaning liquid sprayed from the spray hole (26) of the spray pipe (25) directly acts on the spring piece (23) and pushes the spring piece (23) out.

2. The crankshaft oil hole cleaning device according to claim 1, characterized in that: The through holes (22) on adjacent sleeves (21) are staggered.

3. The crankshaft oil hole cleaning device according to claim 1, characterized in that: The elastic element includes a spring (24), and both ends of the spring (24) are fixedly connected to the spring sheet (23) of the adjacent flushing assembly (20).

4. The crankshaft oil hole cleaning device according to claim 1, characterized in that: The side wall of the spray pipe (25) is provided with multiple limiting tubes (27), and a limiting rod (28) is slidably provided inside the limiting tube (27). One end of the limiting rod (28) located outside the limiting tube (27) is fixedly connected to the spring piece (23); the axis of the limiting tube (27) is perpendicular to the axis of the spray pipe (25).

5. The crankshaft oil hole cleaning device according to claim 1, characterized in that: Both ends of the spray pipe (25) are fixedly connected to the end of the sleeve (21).

6. The crankshaft oil hole cleaning device according to claim 1, characterized in that: The outer wall of the sleeve (21) is provided with bristles.

7. The crankshaft oil hole cleaning device according to claim 1, characterized in that: The drive device (12) includes a motor, a drive gear located on the output shaft of the motor, and a driven gear located on the outer side; the drive gear meshes with the driven gear.

8. The crankshaft oil hole cleaning device according to claim 1, characterized in that: The adjacent sleeves (21) are connected by threads.

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