A shot blasting structure for automobile leaf spring

Abstract

The utility model relates to the field of automobile manufacturing discloses a kind of automobile plate spring shot blasting structure, including platform, the inside rotation of platform is connected with multiple conveying rollers, the conveying roller both ends are rotatably connected with fixed block, the platform top is fixedly connected with shot blasting bin, the shot blasting bin outside is fixedly connected with four motors, the motor output end is fixedly connected with impeller, the platform bottom is fixedly connected with collection bin, the platform one end is fixedly connected with pre-washing protective cover, and the platform other end is fixedly connected with steel ball processing bin.In the utility model, air gun one can be aimed at removing plate spring surface dust and water stain, prevent dust from affecting shot blasting effect, water stain affects steel ball service life, air gun two can blow off plate spring surface residual steel ball, baffle can also guide the steel ball that falls off to collection bin, both reduce steel ball waste, reduce cost, and avoid residual steel ball to affect plate spring subsequent processing.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, and in particular to a shot blasting structure for automobile leaf springs. Background Technology

[0002] As a core load-bearing component of the vehicle suspension system, automotive leaf springs are mostly made of high-strength spring steel. During the early processing stages such as casting and rolling, the surface is prone to the adhesion of oxide scale, rust, or residual impurities. Surface strengthening is necessary to cope with the high-frequency stresses experienced during long-term vehicle operation and to prevent premature fatigue failure. Based on this, a shot blasting structure specifically adapted to the curved surface structure and processing characteristics of automotive leaf springs has emerged. This structure is mainly used in the automotive manufacturing and automotive parts supply industries, and also in the leaf spring refurbishment and repair field of the automotive aftermarket.

[0003] The core functions of shot blasting for automotive leaf springs are reflected in three aspects. First, surface cleaning: efficiently removing oxide scale, rust, and residue from the leaf spring surface, laying the foundation for a clean process. Second, fatigue strengthening: forming a residual compressive stress layer on the leaf spring surface through shot impact, ensuring the reliability of the suspension system. Finally, pre-treatment for coating: increasing surface roughness to improve the adhesion of subsequent paint films and extend the corrosion protection cycle of components.

[0004] Currently available automotive leaf spring shot blasting structures often suffer from poor shot blasting results due to dust and water stains on the leaf springs. Furthermore, the water stains affect the service life of the steel shot inside the device. Therefore, a new automotive leaf spring shot blasting structure is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a shot blasting structure for automotive leaf springs, which aims to improve the problems of excessive dust and water stains on the processed leaf springs.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a shot blasting structure for automotive leaf springs, comprising a platform, wherein multiple conveying rollers are rotatably connected inside the platform, and fixed blocks are rotatably connected to both ends of each conveying roller; a shot blasting chamber is fixedly connected to the top of the platform; four motors are fixedly connected to the outside of the shot blasting chamber; impellers are fixedly connected to the output ends of the motors; a collection chamber is fixedly connected to the bottom of the platform; a pre-cleaning protective cover is fixedly connected to one end of the platform; and a steel shot treatment chamber is fixedly connected to the other end of the platform. The top of the pre-cleaning protective cover is fixedly connected to... There is an air pump 1, the output end of which is fixedly connected to an air supply pipe 1. The end of the air supply pipe 1 away from the air pump 1 is fixedly connected to the inside of the pre-cleaning protective cover. Multiple air guns 1 are fixedly connected inside the pre-cleaning protective cover. An air pump 2 is fixedly connected to the top of the steel shot treatment chamber. The output end of the air pump 2 is fixedly connected to an air supply pipe 2. The end of the air supply pipe 2 away from the air pump 2 is fixedly connected to the inside of the steel shot treatment chamber. Multiple air guns 2 are fixedly connected inside the steel shot treatment chamber. A baffle is fixedly connected to the side of the steel shot treatment chamber near the shot blasting chamber.

[0007] As a further description of the above technical solution:

[0008] An air intake pipe is provided at the top of the platform. A filter screen is fixedly connected to the end of the air intake pipe near the steel shot treatment chamber. A fan is fixedly connected to the end of the air intake pipe. An exhaust gas treatment box is fixedly connected to the end of the air intake pipe away from the filter screen. Multiple buffer plates are fixedly connected to the inside of the exhaust gas treatment box. An exhaust pipe is fixedly connected to the top of the exhaust gas treatment box.

[0009] As a further description of the above technical solution:

[0010] A steel shot recovery chamber is fixedly connected to the outside of the collection chamber, and a steel shot conveying chamber is fixedly connected to the outside of the shot blasting chamber.

[0011] As a further description of the above technical solution:

[0012] The air inlet pipe is located between the shot processing chamber and the shot blasting chamber.

[0013] As a further description of the above technical solution:

[0014] The fixing block is fixedly connected to the outside of the platform, and the impeller is fixedly connected to the outside of the platform.

[0015] As a further description of the above technical solution:

[0016] The first jet gun and the second jet gun are arranged in a straight line.

[0017] As a further description of the above technical solution:

[0018] The filter screen is located on the outside of the fan.

[0019] As a further description of the above technical solution:

[0020] The buffer plates are arranged in a stepped manner.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the first jet gun can specifically remove dust and water stains from the surface of the leaf spring, preventing dust from affecting the shot blasting effect and water stains from affecting the service life of the steel shot. The second jet gun can blow off the residual steel shot on the surface of the leaf spring, and the baffle can guide the blown-off steel shot to the collection chamber, which reduces steel shot waste and lowers costs, and also prevents residual steel shot from affecting the subsequent processing of the leaf spring.

[0023] 2. In this utility model, the fan in the air intake pipe generates suction. After the exhaust gas enters the air intake pipe, it is first filtered by the filter screen, which can block impurities and fine steel shot particles in the exhaust gas and prevent them from entering the subsequent components and causing blockage or damage. The filtered exhaust gas enters the exhaust gas treatment box filled with water. The buffer plate in the box can prevent the water flow from being too strong and at the same time prolong the residence time of the exhaust gas in the box, so that the exhaust gas and water can fully contact each other to adsorb pollutants such as dust and improve the purification effect. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a shot blasting structure for an automotive leaf spring proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of an air pump II with an automotive leaf spring shot blasting structure proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of a jet gun with an automotive leaf spring shot blasting structure proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the baffle of the shot blasting structure for an automotive leaf spring proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the filter screen of a shot blasting structure for automotive leaf springs proposed in this utility model.

[0029] Legend:

[0030] 1. Platform; 2. Conveying rollers; 3. Fixing block; 4. Shot blasting chamber; 5. Impeller; 6. Motor; 7. Collection chamber; 8. Steel shot recovery chamber; 9. Steel shot conveying chamber; 10. Pre-cleaning protective cover; 11. Air pump one; 12. Air supply pipe one; 13. Jet gun one; 14. Steel shot treatment chamber; 15. Air pump two; 16. Air supply pipe two; 17. Jet gun two; 18. Baffle; 19. Air inlet pipe; 20. Fan; 21. Filter screen; 22. Exhaust gas treatment box; 23. Buffer plate; 24. Exhaust pipe. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-4This utility model provides an embodiment of an automotive leaf spring shot blasting structure, comprising a platform 1, with multiple conveying rollers 2 rotatably connected inside the platform 1. The conveying rollers 2 can drive the automotive leaf spring placed on them to move continuously by rotating. Fixed blocks 3 are rotatably connected to both ends of the conveying rollers 2, limiting and supporting the ends of the conveying rollers 2 to ensure stability during rotation. A shot blasting chamber 4 is fixedly connected to the top of the platform 1, and four motors 6 are fixedly connected to the outside of the shot blasting chamber 4. Impellers 5 are fixedly connected to the output ends of the motors 6. The impellers 5 rotate at high speed under the drive of the motors 6, enabling high-speed projection of shot onto the surface of the automotive leaf spring to achieve the shot blasting effect. A collection chamber 7 is fixedly connected to the bottom of the platform 1, which can collect shot, impurities, etc., that fall during the shot blasting process. A pre-cleaning protective cover 10 is fixedly connected to one end of the platform 1 to prevent the spread of dust and water stains during cleaning. An air pump 11 is fixedly connected to the top of the pre-cleaning protective cover 10. An air pump 11 is fixedly connected to an air supply pipe 12 at its output end. The end of the air supply pipe 12 furthest from the air pump 11 is fixedly connected inside a pre-cleaning protective cover 10. Multiple air jet guns 13 are fixedly connected inside the pre-cleaning protective cover 10. The air jet guns 13 can spray out high-pressure gas from the air supply pipe 12 to clean dust and water stains from the surface of the automotive leaf spring. A steel shot treatment chamber 14 is fixedly connected to the other end of the platform 1, specifically for removing residual steel shot from the leaf spring surface. An air pump 15 is fixedly connected to the top of the chamber 14. An air supply pipe 16 is fixedly connected to the output end of the air pump 15. The end of the air supply pipe 16 away from the air pump 15 is fixedly connected to the inside of the steel shot treatment chamber 14. Multiple air guns 17 are fixedly connected inside the steel shot treatment chamber 14. The air guns 17 can spray high-pressure gas to blow off the steel shot remaining on the car leaf spring. A baffle 18 is fixedly connected to the side of the steel shot treatment chamber 14 near the shot blasting chamber 4. The baffle 18 can guide the steel shot to the collection chamber 7.

[0033] Reference Figures 2-5 Platform 1 has an air inlet pipe 19 at its top. A filter screen 21 is fixedly connected to one end of the air inlet pipe 19 near the steel shot treatment chamber 14. The filter screen 21 performs preliminary filtration of the exhaust gas entering the air inlet pipe 19, blocking impurities and small steel shot particles to prevent them from entering subsequent components and causing blockage or damage. A fan 20 is fixedly connected inside the air inlet pipe 19. The fan 20 generates suction, providing power for the flow of exhaust gas within the air inlet pipe 19, prompting the exhaust gas to quickly enter the exhaust gas treatment chamber 22. The end of the air pipe 19 away from the filter screen 21 is fixedly connected to the exhaust gas treatment box 22. The exhaust gas treatment box 22 is filled with water and has multiple buffer plates 23 fixedly connected inside. The buffer plates 23 can prevent the water flow from being too strong and prolong the residence time of the exhaust gas in the treatment box, so that the exhaust gas and water can fully contact each other and improve the exhaust gas treatment effect. The top of the exhaust gas treatment box 22 is fixedly connected to the exhaust pipe 24, which can discharge the exhaust gas after it has been purified by the exhaust gas treatment box 22 to achieve standard emission.

[0034] Reference Figures 1-2 The collection chamber 7 is fixedly connected to the outside of the shot recovery chamber 8. The shot recovery chamber 8 can receive reusable shot that has been preliminarily screened from the collection chamber 7, realizing the recovery and storage of shot, and providing a guarantee for the subsequent recycling of shot. The shot blasting chamber 4 is fixedly connected to the outside of the shot conveying chamber 9. The shot conveying chamber 9 can store the shot to be used and can stably convey the shot to the inside of the shot blasting chamber 4.

[0035] Reference Figures 1-2 The air inlet pipe 19 is located between the shot processing chamber 14 and the shot blasting chamber 4. This position allows for more precise collection of exhaust gas generated during shot blasting operations in the shot blasting chamber 4, as well as a small amount of dust that may be generated during the processing in the shot processing chamber 14. This reduces the diffusion of exhaust gas in other areas on the top of the platform 1 and improves the efficiency and targeting of exhaust gas collection.

[0036] Reference Figures 1-3 The fixing block 3 is fixedly connected to the outside of the platform 1. The fixing block 3 is installed on the outside of the platform 1, which can stably support both ends of the conveying roller 2 and ensure the coaxiality and stability of the conveying roller 2 when it rotates. The impeller 5 is fixedly connected to the outside of the platform 1. The impeller 5 is installed on the outside of the platform 1 and can accurately correspond to the shot blasting port on the shot blasting chamber 4. This ensures that when the impeller 5 rotates at high speed, it can accurately blast the shot into the shot blasting chamber 4 and accurately act on the surface of the automotive leaf spring to ensure the shot blasting effect.

[0037] Reference Figures 2-4 The air guns 13 and 17 are arranged in a straight line to thoroughly remove dust and water stains from all parts of the leaf spring surface, avoiding cleaning dead corners. The straight line arrangement of the air guns 17 allows the airflow to act evenly on the surface of the automotive leaf spring in the steel shot treatment chamber 14, blowing off the steel shot remaining in different parts of the leaf spring.

[0038] Reference Figures 3-5 The filter screen 21 is set on the outside of the fan 20. This setting allows the exhaust gas to be filtered by the filter screen 21 before entering the fan 20, blocking impurities and particles in the exhaust gas on the outside of the filter screen 21, preventing impurities from adhering to the blades and other parts of the fan 20, and avoiding affecting the rotation efficiency and service life of the fan 20.

[0039] Reference Figure 5 The buffer plates 23 are arranged in a stepped manner, which can more effectively remove dust from the exhaust gas, improve the exhaust gas purification effect, and ensure that the exhaust gas meets environmental protection standards.

[0040] Working principle: The automotive leaf spring is placed on the conveyor rollers 2 on platform 1. The conveyor rollers 2 drive the leaf spring into the pre-cleaning protective cover 10 at one end of platform 1. The pre-cleaning protective cover 10 prevents dust and water stains from spreading during cleaning. The jet gun 13 sprays high-pressure gas to clean the dust and water stains on the surface of the leaf spring. After cleaning, the leaf spring continues to be conveyed by the conveyor rollers 2 to the shot blasting chamber 4 at the top of platform 1. The four motors 6 outside the shot blasting chamber 4 start, driving the impellers 5 at the output end to rotate at high speed. The impellers 5 propel the shot at high speed onto the surface of the leaf spring to achieve shot blasting treatment. The shot and impurities that fall during the shot blasting process are collected by the collection chamber 7 at the bottom of platform 1. After shot blasting, the leaf spring is conveyed to the steel shot treatment chamber 14 at the other end of platform 1. The steel shot treatment chamber 14 is specially designed for... To remove residual steel shot from the leaf spring surface, the jet gun 17 sprays high-pressure gas to blow off the residual steel shot. The blown-off steel shot is guided by the baffle 18 to the collection chamber 7. The fan 20 inside the air intake pipe 19 starts to generate suction. The exhaust gas first passes through the filter screen 21 at the end of the air intake pipe 19 near the steel shot treatment chamber 14 for preliminary filtration, blocking impurities and small steel shot particles. The filtered exhaust gas enters the exhaust gas treatment box 22 at the end of the air intake pipe 19 away from the filter screen 21. The exhaust gas treatment box 22 is filled with water, and the stepped buffer plates 23 prevent the water flow from being too strong and prolong the residence time of the exhaust gas in the treatment box, so that the exhaust gas and water can fully contact each other to improve the treatment effect. The purified exhaust gas is discharged from the exhaust pipe 24 at the top of the exhaust gas treatment box 22 to achieve standard emission.

[0041] 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 shot blasting structure for automotive leaf springs, comprising a platform (1), characterized in that: The platform (1) is internally connected to multiple conveying rollers (2), and each conveying roller (2) is rotatably connected to a fixed block (3) at both ends. The top of the platform (1) is fixedly connected to a shot blasting chamber (4), and the outside of the shot blasting chamber (4) is fixedly connected to four motors (6). The output end of each motor (6) is fixedly connected to an impeller (5). The bottom of the platform (1) is fixedly connected to a collection chamber (7). One end of the platform (1) is fixedly connected to a pre-cleaning protective cover (10), and the other end of the platform (1) is fixedly connected to a steel shot treatment chamber (14). The top of the pre-cleaning protective cover (10) is fixedly connected to an air pump (11), and the output end of the air pump (11) is fixedly connected to an air supply pipe (12). The first air supply pipe (12) is fixedly connected to the inside of the pre-cleaning protective cover (10) at the end away from the first air pump (11). Multiple jet guns (13) are fixedly connected inside the pre-cleaning protective cover (10). The top of the steel shot treatment chamber (14) is fixedly connected to the second air pump (15). The output end of the second air pump (15) is fixedly connected to the second air supply pipe (16). The end of the second air supply pipe (16) away from the second air pump (15) is fixedly connected to the inside of the steel shot treatment chamber (14). Multiple jet guns (17) are fixedly connected inside the steel shot treatment chamber (14). A baffle (18) is fixedly connected to the side of the steel shot treatment chamber (14) near the shot blasting chamber (4).

2. The shot blasting structure for an automotive leaf spring according to claim 1, characterized in that: The platform (1) is provided with an air inlet pipe (19) at the top. A filter screen (21) is fixedly connected to the end of the air inlet pipe (19) near the steel shot treatment chamber (14). A fan (20) is fixedly connected to the inside of the air inlet pipe (19). An exhaust gas treatment box (22) is fixedly connected to the end of the air inlet pipe (19) away from the filter screen (21). Multiple buffer plates (23) are fixedly connected inside the exhaust gas treatment box (22). An exhaust pipe (24) is fixedly connected to the top of the exhaust gas treatment box (22).

3. The shot blasting structure for an automotive leaf spring according to claim 1, characterized in that: The collection chamber (7) is fixedly connected to the outside of a steel shot recovery chamber (8), and the shot blasting chamber (4) is fixedly connected to the outside of a steel shot conveying chamber (9).

4. The shot blasting structure for an automotive leaf spring according to claim 2, characterized in that: The air inlet pipe (19) is located between the shot processing chamber (14) and the shot blasting chamber (4).

5. The shot blasting structure for an automotive leaf spring according to claim 1, characterized in that: The fixing block (3) is fixedly connected to the outside of the platform (1), and the impeller (5) is fixedly connected to the outside of the platform (1).

6. The shot blasting structure for an automotive leaf spring according to claim 1, characterized in that: The first jet gun (13) and the second jet gun (17) are arranged in a straight line.

7. The shot blasting structure for an automotive leaf spring according to claim 2, characterized in that: The filter (21) is located on the outside of the fan (20).

8. The shot blasting structure for an automotive leaf spring according to claim 2, characterized in that: The buffer plates (23) are arranged in a stepped manner.

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