A flushing device for engine crankshaft machining

Abstract

This utility model discloses a flushing device for engine crankshaft processing, relating to the field of crankshaft flushing technology. It includes a support frame with two support columns fixed to the top. A flushing cylinder is fixed to the top of the two support columns, and a drain pipe is fixedly connected to the bottom of the flushing cylinder. A first valve is installed on the drain pipe, and a first motor is installed at the bottom of the flushing cylinder. After the crankshaft is clamped by a three-jaw chuck, a lifting assembly pulls the crankshaft into the flushing cylinder where it is submerged in water. The first motor drives two agitator rods to rotate, causing them to agitate the water in the flushing cylinder and wash away debris adhering to the crankshaft surface. After flushing, the lifting assembly moves the crankshaft upwards away from the flushing cylinder, and a water supply assembly injects water into the spray pipe. Simultaneously, a second motor drives the three-jaw chuck to rotate along with the crankshaft, allowing water from the nozzles on the spray pipe to flush the crankshaft again.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft flushing technology, and in particular to a flushing device for engine crankshaft processing. Background Technology

[0002] The crankshaft is one of the most important components in an internal combustion engine. It is the spine of the engine and a key component that bears impact loads and transmits power. The working environment and stress conditions of the crankshaft are very complex. During operation, it is subjected to the combined effects of periodically changing gas pressure, centrifugal force, and inertial force. Therefore, in the manufacturing process, high requirements are placed on the dimensional accuracy, positional accuracy, and surface roughness of each part of the crankshaft.

[0003] Even after polishing, some debris remains on the surface of the engine crankshaft. This debris can hinder subsequent machining and production. Therefore, during crankshaft machining, it's necessary to rinse the surface promptly to remove the debris. Ultrasonic cleaning is a common technique in the machining industry. After ultrasonic cleaning, most of the debris on the crankshaft is removed. This debris, mixed with water, adheres to the crankshaft surface with the water droplets as the water evaporates. Even after the water evaporates, a small amount of debris mixed within the droplets continues to adhere, resulting in poor cleaning. Utility Model Content

[0004] The purpose of this application is to provide a flushing device for engine crankshaft processing, in order to solve the problem mentioned in the background art that after ultrasonic cleaning, the surface debris on the crankshaft is basically removed, and these debris mixes into the water and adheres to the crankshaft surface with the water droplets during the crankshaft rinsing process. When the water droplets evaporate, a small amount of debris mixed inside them will continue to adhere to the crankshaft, resulting in poor crankshaft cleaning effect.

[0005] To achieve the above objectives, this application provides the following technical solution: a flushing device for engine crankshaft machining, comprising a support frame, two carrier columns fixed to the top of the support frame, a flushing cylinder fixed to the top of the two carrier columns, a drain pipe fixedly connected to the bottom of the flushing cylinder, a first valve installed on the drain pipe, a first motor installed at the bottom of the flushing cylinder, a first transmission rod connected to the output shaft of the first motor via a coupling, the top of the first transmission rod extending into the interior of the flushing cylinder and fixed with a carrier plate, two agitator rods fixed to the upper surface of the carrier plate, a water supply assembly installed on the support frame, and a... A lifting assembly is provided, on which an outer cover is mounted and used to adjust the height of the outer cover. The outer cover is fitted over the outside of the rinsing tube, and a piston is fixed to the inner side of the bottom of the outer cover. The piston is slidably fitted over the outside of the rinsing tube. A top plate is fixed to the top of the outer cover, and a second transmission rod is inserted into the top plate. The connection between the top plate and the second transmission rod is rotatably connected by a bearing. A three-jaw chuck is fixed to the bottom end of the second transmission rod and is located inside the outer cover. A water spray pipe is fixedly inserted into the top plate, and a water supply assembly is used to supply water to the inside of the water spray pipe. Several nozzles are installed on the water spray pipe.

[0006] Furthermore, the rinsing cylinder is provided with several reflux holes.

[0007] Furthermore, the first transmission rod and the flushing cylinder are rotatably connected by a bearing, and a seal is provided at the connection between the flushing cylinder and the first transmission rod.

[0008] Furthermore, a second motor is installed on the top of the top plate, and the second transmission rod is driven by the second motor.

[0009] Furthermore, the outer cover cylinder has an opening for taking out and putting in, and a sealing door is hinged to the outer cover cylinder. The sealing door is used to block the opening for taking out and putting in, and two latches are installed on the sealing door. The two latches are used to fix the outer cover cylinder and the sealing door.

[0010] Furthermore, the lifting assembly includes a rectangular frame plate, with a lead screw rotatably connected between the upper and lower inner walls of the rectangular frame plate via bearings. A lead screw nut is mounted on the lead screw, and a slider is mounted on the lead screw nut. The slider slides against the inner wall of the rectangular frame plate. The outer cover is fixedly mounted on the slider. A third motor is mounted on the top of the rectangular frame plate, and the lead screw is driven by the third motor.

[0011] Furthermore, the water supply assembly includes a water storage tank and a water pump. The water storage tank is fixedly installed on a support frame, and the rectangular frame plate is fixedly installed on the top of the water storage tank. The outlet of the water pump is connected to a spray pipe, and a delivery pipe is fixedly connected between the inlet of the water pump and the water storage tank. A water injection pipe is fixedly connected to the top of the water storage tank, and a second valve is installed on the water injection pipe.

[0012] In summary, the technical effects and advantages of this utility model are as follows: In this invention, after the crankshaft is clamped by a three-jaw chuck, the outer cover cylinder is pulled down along with the crankshaft by a lifting assembly, so that the outer cover cylinder covers the outside of the flushing cylinder, and the crankshaft enters the flushing cylinder and is submerged in water. The first motor drives the two agitator rods to rotate, so that the two agitator rods stir the water in the flushing cylinder. The flowing water washes off the debris adhering to the surface of the crankshaft. After the crankshaft is flushed, the lifting assembly moves it up and away from the flushing cylinder. Water is injected into the water spray pipe by a water supply assembly. At the same time, the second motor drives the three-jaw chuck to rotate along with the crankshaft, so that the water sprayed from the nozzle on the water spray pipe can flush the crankshaft again, completely washing away the remaining debris on the crankshaft surface, ensuring the cleanliness of the crankshaft after flushing, and facilitating the subsequent processing of the crankshaft.

[0013] In this invention, the crankshaft can be completely enclosed by the outer casing, piston, top plate, and sealing door, so that when the nozzle on the water spray pipe sprays water, the water will not overflow and will flow into the interior of the flushing cylinder along the return hole. Opening the first valve on the drain pipe can drain the excess water in the flushing cylinder. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a flushing device for machining an engine crankshaft according to an embodiment of this application; Figure 2 This is a diagram showing the positional relationship between the outer casing, lifting assembly, water supply assembly, and sealing door in the embodiments of this application. Figure 3 This is a diagram showing the positional relationship between the lifting assembly, flushing cylinder, drain pipe, and outer cover cylinder in the embodiments of this application; Figure 4 This is a schematic diagram of the internal structure of the flushing cylinder and the outer cover cylinder in the embodiments of this application; Figure 5 This is a diagram showing the positional relationship of the flushing cylinder, drain pipe, carrier plate, and agitator rod in the embodiments of this application.

[0016] In the diagram: 1. Support frame; 2. Carrier column; 3. Flushing cylinder; 4. Drain pipe; 5. First motor; 6. First transmission rod; 7. Carrier plate; 8. Stirring rod; 9. Return hole; 10. Outer cover cylinder; 11. Piston; 12. Top plate; 13. Second transmission rod; 14. Second motor; 15. Three-jaw chuck; 16. Water spray pipe; 17. Sealing door; 18. Lock; 19. Rectangular frame plate; 20. Lead screw; 21. Slider; 22. Third motor; 23. Water storage tank; 24. Water pump; 25. Delivery pipe; 26. Water injection pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example: Reference Figure 1-5 The flushing device for engine crankshaft machining shown includes a support frame 1, two carrier columns 2 fixed to the top of the support frame 1, a flushing cylinder 3 fixed to the top of the two carrier columns 2, a drain pipe 4 fixedly connected to the bottom of the flushing cylinder 3, a first valve installed on the drain pipe 4, a first motor 5 installed at the bottom of the flushing cylinder 3, the output shaft of the first motor 5 connected to a first transmission rod 6 via a coupling, the top of the first transmission rod 6 extending into the interior of the flushing cylinder 3 and fixed with a carrier plate 7, the joint between the first transmission rod 6 and the flushing cylinder 3 being rotatably connected by a bearing, and a seal being provided at the joint between the flushing cylinder 3 and the first transmission rod 6, two agitator rods 8 fixed to the upper surface of the carrier plate 7, a water supply assembly installed on the support frame 1, a lifting assembly installed on the water supply assembly, and multiple return holes 9 opened on the flushing cylinder 3. An outer cover cylinder 10 is installed on the assembly, and a lifting assembly is used to adjust the height of the outer cover cylinder 10. The outer cover cylinder 10 is sleeved on the outside of the rinsing cylinder 3, and a piston 11 is fixed on the inner side of the bottom of the outer cover cylinder 10. The piston 11 is slidably sleeved on the outside of the rinsing cylinder 3. A top plate 12 is fixed on the top of the outer cover cylinder 10. A second transmission rod 13 is inserted into the top plate 12, and the joint between the top plate 12 and the second transmission rod 13 is rotatably connected by a bearing. A three-jaw chuck 15 is fixed at the bottom end of the second transmission rod 13. A second motor 14 is installed on the top of the top plate 12. The second transmission rod 13 is driven by the second motor 14. The three-jaw chuck 15 is located inside the outer cover cylinder 10. A water spray pipe 16 is fixedly inserted into the top plate 12. A water supply assembly is used to supply water to the inside of the water spray pipe 16. Multiple nozzles are installed on the water spray pipe 16. After the crankshaft is clamped by the three-jaw chuck 15, the outer cover 10 is pulled down along with the crankshaft by the lifting assembly, so that the outer cover 10 covers the outside of the flushing cylinder 3, and the crankshaft enters the flushing cylinder 3 and is submerged in water. The first motor 5 drives the two agitator rods 8 to rotate, so that the two agitator rods 8 agitate the water in the flushing cylinder 3. The flowing water washes off the debris adhering to the surface of the crankshaft. After the crankshaft is flushed, the lifting assembly moves it up away from the flushing cylinder 3, and the water supply assembly injects water into the water spray pipe 16. At the same time, the second motor 14 drives the three-jaw chuck 15 to rotate along with the crankshaft, so that the water sprayed from the nozzle on the water spray pipe 16 can flush the crankshaft again, completely washing away the remaining debris on the crankshaft surface and ensuring the cleanliness of the crankshaft after flushing.

[0019] The outer cover cylinder 10 has an opening for taking out and putting out, and a sealing door 17 is hinged to the outer cover cylinder 10. The sealing door 17 is used to block the opening for taking out and putting out, and two latches 18 are installed on the sealing door 17. The two latches 18 are used to fix the outer cover cylinder 10 and the sealing door 17. The crankshaft can be completely enclosed by the outer casing 10, piston 11, top plate 12 and sealing door 17, so that when the nozzle on the water spray pipe 16 sprays water, the water will not overflow and will flow into the interior of the flushing cylinder 3 along the return hole 9. Opening the first valve on the drain pipe 4 can drain the excess water in the flushing cylinder 3.

[0020] The lifting assembly includes a rectangular frame plate 19. A lead screw 20 is rotatably connected between the upper and lower inner walls of the rectangular frame plate 19 via bearings. A lead screw nut is installed on the lead screw 20, and a slider 21 is installed on the lead screw nut. The slider 21 slides with the inner wall of the rectangular frame plate 19. An outer cover cylinder 10 is fixedly installed on the slider 21. A third motor 22 is installed on the top of the rectangular frame plate 19, and the lead screw 20 is driven by the third motor 22. The third motor 22 drives the lead screw 20 to rotate. The lead screw 20 can pull the slider 21 to move longitudinally in a lead screw transmission manner, thereby driving the outer cover cylinder 10, the three-jaw chuck 15 and the crankshaft to move longitudinally as needed.

[0021] The water supply components include a water storage tank 23 and a water pump 24. The water storage tank 23 is fixedly installed on the support frame 1. The rectangular frame plate 19 is fixedly installed on the top of the water storage tank 23. The outlet of the water pump 24 is connected to the spray pipe 16. The inlet of the water pump 24 is fixedly connected to the water storage tank 23 by a delivery pipe 25. The top of the water storage tank 23 is fixedly connected to a water injection pipe 26. A second valve is installed on the water injection pipe 26. The water pump 24 can send water from the water storage tank 23 to the inside of the spray pipe 16, so that the water can be sprayed out along the nozzle on the spray pipe 16 to wash the crankshaft. Opening the second valve on the water injection pipe 26 can replenish water to the water storage tank 23 in a timely manner.

[0022] Working principle of this utility model: Open the two latches 18, rotate the sealing door 17, and insert the crankshaft into the outer cover cylinder 10 along the loading and unloading port. Use the three-jaw chuck 15 to firmly clamp one end of the crankshaft. Then, close the sealing door 17 and use the latches 18 to fix the outer cover cylinder 10 and the sealing door 17 again. Start the third motor 22 to drive the lead screw 20 to rotate. The lead screw 20 pulls the slider 21, the outer cover cylinder 10 and the crankshaft to move down together, so that the crankshaft enters the interior of the flushing cylinder 3. Start the first motor 5 to drive the two stirring rods 8 to rotate. The two stirring rods 8 stir the water inside the flushing cylinder 3 and use the water flow to flush the crankshaft, causing the debris on the surface of the crankshaft to fall off. After flushing for 10 minutes, turn off the first motor 5 and start the third motor 22 to drive the lead screw 20 to move the outer cover cylinder 10 and the crankshaft up, so that the crankshaft leaves the flushing cylinder 3. Open the first valve on the drain pipe 4 to drain some of the water in the flushing cylinder 3, and then close the first valve. The water pump 24 is activated to send water from the water tank 23 to the spray pipe 16, so that the water is sprayed out along the nozzle on the spray pipe 16. The water flow is used to rinse the crankshaft again. In order to ensure that the crankshaft is thoroughly rinsed, the second motor 14 can be activated to drive the three-jaw chuck 15 to rotate together with the crankshaft. The water used to rinse the crankshaft can flow back into the rinsing cylinder 3 along the return hole 9 to replenish the water lost by the rinsing cylinder 3. After rinsing for 5 minutes, the water pump 24 and the second motor 14 are turned off. The sealed door 17 can be opened to remove the cleaned crankshaft from the three-jaw chuck 15.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flushing device for engine crankshaft machining, comprising a support frame (1), characterized in that: Two support columns (2) are fixed to the top of the support frame (1), and a flushing cylinder (3) is fixed to the top of the two support columns (2). A drain pipe (4) is fixedly connected to the bottom of the flushing cylinder (3). A first valve is installed on the drain pipe (4). A first motor (5) is installed at the bottom of the flushing cylinder (3). The output shaft of the first motor (5) is connected to a first transmission rod (6) through a coupling. The top of the first transmission rod (6) extends into the interior of the flushing cylinder (3) and is fixed with a carrier plate (7). Two stirring rods (8) are fixed to the upper surface of the carrier plate (7). A water supply assembly is installed on the support frame (1). A lifting assembly is installed on the water supply assembly. An outer cover cylinder (10) is installed on the lifting assembly. The lifting assembly is used to adjust the outer cover cylinder (10). The height of the outer cover (10) is fitted outside the flushing tube (3), and a piston (11) is fixed on the inner side of the bottom of the outer cover (10). The piston (11) is slidably fitted outside the flushing tube (3). A top plate (12) is fixed on the top of the outer cover (10). A second transmission rod (13) is inserted into the top plate (12), and the joint between the top plate (12) and the second transmission rod (13) is rotatably connected by a bearing. A three-jaw chuck (15) is fixed at the bottom end of the second transmission rod (13). The three-jaw chuck (15) is located inside the outer cover (10). A water spray pipe (16) is fixedly inserted into the top plate (12). The water supply assembly is used to supply water to the inside of the water spray pipe (16). Several nozzles are installed on the water spray pipe (16).

2. The flushing device for engine crankshaft machining according to claim 1, characterized in that: The flushing cylinder (3) has several return holes (9).

3. The flushing device for engine crankshaft machining according to claim 1, characterized in that: The first transmission rod (6) and the flushing cylinder (3) are connected by a bearing, and a seal is provided at the connection between the flushing cylinder (3) and the first transmission rod (6).

4. The flushing device for engine crankshaft machining according to claim 1, characterized in that: A second motor (14) is installed on the top of the top plate (12), and the second transmission rod (13) is driven by the second motor (14).

5. A flushing device for engine crankshaft machining according to claim 1, characterized in that: The outer cover (10) has an opening for taking out and putting out, and a sealing door (17) is hinged on the outer cover (10). The sealing door (17) is used to block the opening for taking out and putting out, and two latches (18) are installed on the sealing door (17). The two latches (18) are used to fix the outer cover (10) and the sealing door (17).

6. A flushing device for engine crankshaft machining according to claim 1, characterized in that: The lifting assembly includes a rectangular frame plate (19), and a lead screw (20) is rotatably connected between the upper and lower inner walls of the rectangular frame plate (19) through bearings. A lead screw nut is installed on the lead screw (20), and a slider (21) is installed on the lead screw nut. The slider (21) slides with the inner wall of the rectangular frame plate (19). The outer cover (10) is fixedly installed on the slider (21). A third motor (22) is installed on the top of the rectangular frame plate (19), and the lead screw (20) is driven by the third motor (22).

7. A flushing device for engine crankshaft machining according to claim 6, characterized in that: The water supply assembly includes a water storage tank (23) and a water pump (24). The water storage tank (23) is fixedly installed on the support frame (1). The rectangular frame plate (19) is fixedly installed on the top of the water storage tank (23). The outlet of the water pump (24) is connected to the spray pipe (16). The inlet of the water pump (24) is fixedly connected to the water storage tank (23) by a delivery pipe (25). The top of the water storage tank (23) is fixedly connected to a water injection pipe (26). A second valve is installed on the water injection pipe (26).

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