A shot blasting machine for automobile air conditioner compressor cover plate

Abstract

The present application relates to the field of auxiliary production equipment, particularly relates to a shot blasting machine for automobile air conditioner compressor cover plate, comprising a machine box and a shot blasting machine, the shot blasting machine is cylindrical, a plurality of groups of discharge ports are arranged on the side wall of the shot blasting machine, a distribution mechanism for screening steel shots is arranged at the discharge port, a transfer mechanism for conveying steel shots is arranged in the distribution mechanism, the distribution mechanism comprises a plurality of groups of hollow shafts, screen units arranged on the side wall of the hollow shaft, a poking plate arranged outside the hollow shaft and a power assembly a for driving the hollow shaft to rotate, the transfer mechanism comprises a conveying roller assembly rotatably arranged in the hollow shaft and a power assembly b for driving the conveying roller assembly and the hollow shaft, the technical problems of uneven distribution of shot and inability to screen shot particles in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of automotive air conditioning compressor manufacturing equipment, and in particular to a shot blasting machine for automotive air conditioning compressor cover plates. Background Technology

[0002] Steel cover plates are an important component of various mechanical parts that require sealing. Their main function is to close or cover the ends or tops of various mechanical parts. The production process of steel cover plates requires shot blasting. Currently, the shot blasting machine's flow tube only has an inlet. The shot enters the flow tube through the inlet and flows along the inner wall of the flow tube under the action of gravity, eventually accumulating on the side of the shot distribution wheel away from the flow tube. The shot bundle continuously impacts the root of the shot distribution wheel on this side, causing the root of the shot distribution wheel to wear too quickly, resulting in premature wear and failure of the shot distribution wheel. Furthermore, due to the small size of the cover plate, if the diameter of the shot is too large, it will affect the final shot blasting effect. However, it is difficult to screen the shot according to its diameter.

[0003] Chinese patent application CN202210765878.9 discloses a method and device for improving the distribution of shot along the width of blades by using external airflow. By supplementing the shot flow tube with external airflow, the influence of gravity on the shot in the shot flow tube is reduced, while the influence of airflow is enhanced. This allows the shot in the shot flow tube to enter the distribution wheel more dispersedly, reducing the concentration of shot away from the distribution wheel end caused by gravity. This reduces the impact on the root of the distribution wheel end, thereby reducing wear on that end. At the same time, it also allows the shot to be more evenly received by the blades after leaving the distribution wheel and flying out of the directional sleeve, achieving uniform wear of the blades. Ultimately, this achieves uniform wear of metal consumables and extends the service life of the distribution wheel, directional sleeve, and blades.

[0004] However, during the use of this equipment, the shot entering the shot separator is blown with air. Due to the uncertainty of the shot movement caused by the gas, there is still a risk of uneven shot distribution. In addition, this equipment does not have the function of separating shot by size. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a shot blasting machine for automotive air conditioning compressor covers. By setting several sets of hollow shafts at the discharge port of the shot distribution wheel, and sieving units on the side walls of the hollow shafts, with a deflector plate spirally arranged around the outer side, and the spiral directions of the deflector plates on adjacent sets of hollow shafts being opposite to each other, when the shot distribution wheel rotates, the hollow shafts rotate the deflector plates, causing the shot to be evenly distributed along the width direction of the discharge port. Simultaneously, the shot enters the interior of the hollow shaft through the sieving unit. Small shot particles can be thrown out, while large shot particles are conveyed out by the conveying roller assembly inside the hollow shaft. This solves the technical problems of uneven shot distribution and inability to sieve shot particles in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A shot blasting machine for automotive air conditioning compressor cover plates includes a housing and a shot blaster. The shot blaster is disposed above the housing and includes a shell, an impeller, a directional sleeve, a shot distribution wheel, a feed pipe, and a driver. The shot distribution wheel is cylindrical and includes a feed inlet axially connected to the feed pipe, a discharge outlet arranged in a circumferential array on its sidewall, a material distribution mechanism corresponding to the discharge outlet for screening steel shot of different sizes, and a conveying mechanism located within the material distribution mechanism for conveying steel shot. The material distribution mechanism includes several sets of rotatably arranged hollow shafts, screening units evenly distributed on the sidewalls of the hollow shafts, a material guide plate corresponding to the outside of the hollow shafts, and a power component a for driving the hollow shafts to rotate. The conveying mechanism includes a conveying roller assembly rotatably installed within the hollow shafts and a power component b for powerly connecting the conveying roller assembly and the hollow shafts.

[0008] As an improvement, the material distribution mechanism further includes two sets of partitions, which are fixedly installed on the outside of the distribution wheel and make the distribution wheel and the directional sleeve form a conveying area.

[0009] As an improvement, the screening unit includes a through hole opened on the side wall of the hollow shaft, a tapered tube coaxially connected to the through hole and with its small end facing inward, and spring sheets arranged in a circumferential array at the free end of the tapered tube.

[0010] As an improvement, the feeding plate is spirally arranged around the outside of the hollow shaft.

[0011] As an improvement, the material feeding plates on the outer sides of the two adjacent sets of hollow shafts are arranged in opposite directions.

[0012] As an improvement, the power assembly a includes a gear ring a coaxially mounted inside the directional sleeve and a gear a coaxially connected to the hollow shaft and meshing with the gear ring a.

[0013] As an improvement, the conveying roller assembly includes a conveying channel coaxially disposed at the other end of the hollow shaft relative to the power component a and communicating with the interior of the hollow shaft, a rotating shaft coaxially rotatably mounted in the hollow shaft and the conveying channel, a conveying unit disposed on the rotating shaft, a plurality of discharge ports circumferentially arrayed on the side wall of the conveying channel, and a discharge channel disposed on the shot distribution wheel and capable of docking with the discharge ports.

[0014] As an improvement, the conveying unit is configured as a propeller blade, which includes a discharge section correspondingly disposed in the conveying channel, a feeding section disposed at the other end of the rotating shaft relative to the discharge section and located in the hollow shaft, and a return section located between the discharge section and the feeding section and located in the hollow shaft. The propeller blades of the discharge section and the feeding section have the same spiral direction and are opposite to those of the return section.

[0015] As an improvement, if the length of the feeding section is L and the length of the return section is l, then L:l = 3:1.

[0016] As an improvement, the power component b includes a gear b fixed coaxially with the rotating shaft, several sets of gears c arranged in a circumferential array at the end of the conveying channel and meshing with the gear b, and a gear ring b fixedly mounted on the ball-dividing wheel and meshing with the several sets of gears b.

[0017] The beneficial effects of this invention are as follows:

[0018] (1) In this invention, a material feeding plate is spirally arranged around the outer side of the hollow shaft, and the material feeding plates of two adjacent sets of hollow shafts are spiraled in opposite directions. When the shot distribution wheel rotates, the shot circulates in the width direction of the discharge port of the shot distribution wheel under the action of the power component a, so that the shot is evenly distributed in the width direction of the discharge port, thereby making the shot thrown out by the impeller evenly distributed, extending the service life of the impeller and the directional sleeve, and improving the shot blasting efficiency.

[0019] (2) In this invention, all the shot enters the interior of the hollow shaft through the screening unit. Under the action of the conical tube of the screening unit, both large and small shot can enter the interior of the hollow shaft. However, large shot is not easy to be thrown out, so it is left inside the hollow shaft. Small shot is thrown out again through the screening unit, thus realizing the separation of large and small shot, thereby improving the shot blasting effect.

[0020] (3) The conveyor roller assembly of the present invention has a feeding section and a return section on the rotating shaft, and the feeding section is relatively long, so that when the pellets enter the hollow shaft, those close to the conveying channel will not enter the conveying channel at the first time, thereby improving the separation effect of the pellets and reducing pellet waste.

[0021] In summary, the present invention has the advantages of high shot blasting efficiency, low wear of mechanical parts of the shot blaster, and good shot separation effect, and is especially suitable for the field of auxiliary agent production equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the shot blasting machine;

[0024] Figure 3 Cross-sectional view of a shot blasting machine Figure 1 ;

[0025] Figure 4 Cross-sectional view of a shot blasting machine Figure 2 ;

[0026] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 6 for Figure 4 Enlarged view at point B in the middle;

[0028] Figure 7 Cross-sectional view of the transfer mechanism Figure 1 ;

[0029] Figure 8 Cross-sectional view of the moving mechanism Figure 2 ;

[0030] Figure 9 for Figure 8 Enlarged view at point C;

[0031] Figure 10 This is a schematic diagram of the power component b.

[0032] Figure 11 This is a schematic diagram of the internal structure of the shot distribution wheel;

[0033] Figure 12 This is a schematic diagram of the feed pellet flow path; Detailed Implementation

[0034] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] Example:

[0038] like Figures 1 to 6 As shown, a shot blasting machine for an automotive air conditioning compressor cover plate includes a housing 1 and a shot blaster 2. The shot blaster 2 is disposed above the housing 1. The shot blaster 2 includes a housing 21, an impeller 22, a directional sleeve 23, a shot distributor 24, a feed pipe 25, and a driver 26. The shot distributor 24 is cylindrical and includes a feed port 241 axially connected to the feed pipe 25, a discharge port 242 circumferentially arrayed on its side wall, a sorting mechanism 243 correspondingly disposed at the discharge port 242 for screening steel shot of different sizes, and a filter located within the sorting mechanism 243. The conveying mechanism 244 for conveying steel shot includes a material distribution mechanism 243 comprising several sets of rotatably arranged hollow shafts 2431, screening units 2432 evenly distributed on the side walls of the hollow shafts 2431, material guide plates 2433 correspondingly arranged on the outside of the hollow shafts 2431, and a power assembly a2434 for driving the hollow shafts 2431 to rotate. The conveying mechanism 244 includes a conveying roller assembly 2441 rotatably installed inside the hollow shafts 2431 and a power assembly b2442 for powerly connecting the conveying roller assembly 2441 and the hollow shafts 2431.

[0039] It should be noted that the directional sleeve 23 is mounted on the housing 21, the impeller 22 is rotatably mounted on the outside of the directional sleeve 23, and the ball-distributing wheel 24 is located on the inside of the directional sleeve 23.

[0040] It should be further noted that the drive 26 includes a three-phase asynchronous motor 261, a main shaft 262 coaxially connected to the impeller 22 and the ball distribution wheel 24, and a belt 263 that powers the three-phase asynchronous motor 261 and the main shaft 262.

[0041] Furthermore, such as Figure 5 and Figure 12 As shown, the material distribution mechanism 243 also includes two sets of partitions 2435, which are fixedly installed on the outside of the shot distribution wheel 24, so that the shot distribution wheel 24 and the directional sleeve 23 form a conveying area 2430.

[0042] It should be noted that the two sets of partitions 2435 can prevent the shot from flowing out from the gap between the directional sleeve 23 and the shot distribution wheel 24 during the shot blasting process, and prevent the shot from entering the power assembly a2434, so that there will be no jamming.

[0043] Furthermore, such as Figure 9 As shown, the screening unit 2432 includes a through hole 24321 opened on the side wall of the hollow shaft 2431, a tapered tube 24322 coaxially connected to the through hole 24321 and with its small end facing inward, and spring pieces 24333 arranged in a circumferential array at the free end of the tapered tube 24322.

[0044] It should be noted that all the pellets can enter the interior of the hollow shaft 2431 through the through hole 24321 and the tapered tube 24322 in sequence. Since the tapered tube 24322 is located on the inner side of the hollow shaft 2431 with a small end, large pellets are difficult to flow out of the hollow shaft 2431 through the tapered tube 24322 again.

[0045] It should also be noted that the spring sheet 24333 can more effectively prevent large pellets from flowing out of the hollow shaft 2431.

[0046] Furthermore, such as Figure 11 and Figure 12 As shown, the feeding plate 2433 is spirally arranged around the outside of the hollow shaft 2431.

[0047] Furthermore, the material feeding plates 2433 on the outer sides of the two adjacent sets of hollow shafts 2431 are arranged in opposite directions.

[0048] It should be noted that the rotation of several sets of the feeding plates 2433 is consistent. When the hollow shaft 2431 rotates, the two adjacent sets of feeding plates 2433 make the pellets evenly distributed along the width direction of the impeller 22 at the discharge port 242, which can reduce the wear of the impeller 22.

[0049] It should also be noted that the small height of the feeding plate 2433 allows the two adjacent sets of hollow shafts 2431 to be close together, ensuring that large pellets will not be discharged between the two sets of hollow shafts 2431.

[0050] Furthermore, such as Figure 11 As shown, the power assembly a2434 includes a gear ring a24341 coaxially mounted inside the directional sleeve 23 and a gear a24342 coaxially connected to the hollow shaft 2431 and meshing with the gear ring a24341.

[0051] It should be noted that the gear ring a24341 is fixedly installed. When the ball-dividing wheel 24 rotates, the gear a24342 and the gear ring a24341 mesh, thereby driving the hollow shaft 2431 to rotate.

[0052] Furthermore, such as Figure 7 and Figure 8 As shown, the conveying roller assembly 2441 includes a conveying channel 24411 coaxially disposed at the other end of the hollow shaft 2431 relative to the power assembly a2434 and communicating with the interior of the hollow shaft 2431, a rotating shaft 24412 coaxially rotatably mounted in the hollow shaft 2431 and the conveying channel 24411, a conveying unit 24413 disposed on the rotating shaft 24412, a plurality of discharge ports 24414 circumferentially arrayed on the side wall of the conveying channel 24411, and a discharge channel 24415 disposed on the shot distribution wheel 24 and capable of docking with the discharge ports 24414.

[0053] It should be noted that the conveying channel 24411 is located away from the power component a2434, which ensures that the pellets discharged from the discharge channel 24415 will not interfere with the movement of the power component a2434.

[0054] It should also be noted that the discharge channel 24415 can be connected to an external negative pressure device.

[0055] Furthermore, such as Figure 7 and Figure 8 As shown, the conveying unit 24413 is configured as a propeller blade, which includes a discharge section 244131 correspondingly disposed in the conveying channel 24411, a feeding section 244132 disposed at the other end of the rotating shaft 24412 relative to the discharge section 244131 and located in the hollow shaft 2431, and a return section 244133 located between the discharge section 244131 and the feeding section 244132 and located in the hollow shaft 2431. The propeller blades of the discharge section 244131 and the feeding section 244132 have the same spiral direction and are opposite to those of the return section 244133.

[0056] Furthermore, such as Figure 8 As shown, the length of the feeding section 244132 is L, and the length of the return section 244133 is l, so L:l = 3:1.

[0057] It should be noted that the return section 244133 is set up to ensure that the pellets entering the hollow shaft 2431 and close to the conveying channel 24411 are not sent into the conveying channel 24411 at the first time, which can effectively prevent small pellets from entering the conveying channel 24411 and improve the screening effect.

[0058] It should also be noted that, since the length of the feeding section 244132 is greater than the length of the return section 244133, the thrust generated by the feeding section 244132 is greater than the thrust generated by the return section 244133, thus the pellets can be output smoothly.

[0059] Furthermore, such as Figure 10 As shown, the power assembly b2442 includes a gear b24421 coaxially fixed with the rotating shaft 24412, several sets of gears c24422 distributed in a circumferential array at the end of the conveying channel 24411 and meshing with the gear b24421, and a gear ring b24423 fixedly mounted on the ball-distributing wheel 24 and meshing with the several sets of gears b24421.

[0060] It should be noted that during the rotation of the conveying channel 24411 with the hollow shaft 2431, the gear c24422 rotates under the action of the gear ring b24423, thereby driving the gear b24421 to rotate, thus realizing the rotation of the rotating shaft 24412.

[0061] Work process:

[0062] The pellets enter the interior of the pellet distributor 24 through the feed pipe 25. The pellet distributor 24 rotates, and under the action of the power component a2434, the hollow shaft 2431 rotates. The feed plate 2433 ensures that the pellets are evenly distributed. The pellets can also enter the interior of the hollow shaft 2431 through the screening unit 2432. Small pellets can leave the hollow shaft 2431 and enter the rotating area of ​​the impeller 22 through the directional sleeve 23, where they are thrown out. Large pellets cannot leave the hollow shaft 2431 and under the action of the power component b2442, the rotating shaft 24412 rotates. Under the action of the conveying unit 24413, the large pellets are finally discharged from the discharge channel 24415.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shot blasting machine for an automotive air conditioning compressor cover plate, comprising a housing (1) and a shot blaster (2), wherein the shot blaster (2) is disposed above the housing (1), and the shot blaster (2) comprises a housing (21), an impeller (22), a directional sleeve (23), a shot distribution wheel (24), a feed pipe (25), and a driver (26), characterized in that, The shot separator (24) is cylindrical and includes a feed inlet (241) axially connected to the feed pipe (25), a discharge outlet (242) arranged in a circumferential array on its side wall, a sorting mechanism (243) corresponding to the discharge outlet (242) for screening steel shot of different sizes, and a conveying mechanism (244) located within the sorting mechanism (243) for conveying steel shot. The sorting mechanism (243) includes several sets of rotatably arranged hollow shafts (2431) evenly distributed on the side wall. The hollow shaft (2431) includes a screening unit (2432) on the side wall, a material feeding plate (2433) correspondingly disposed on the outside of the hollow shaft (2431), and a power assembly a (2434) for driving the hollow shaft (2431) to rotate. The transfer mechanism (244) includes a conveying roller assembly (2441) rotatably installed inside the hollow shaft (2431) and a power assembly b (2442) for power connection between the conveying roller assembly (2441) and the hollow shaft (2431). The feeding plate (2433) is spirally arranged around the outside of the hollow shaft (2431); The spiral directions of the material feeding plates (2433) on the outer sides of the two adjacent sets of hollow shafts (2431) are opposite to each other; The conveying roller assembly (2441) includes a conveying channel (24411) coaxially disposed at the other end of the hollow shaft (2431) relative to the power assembly a (2434) and communicating with the interior of the hollow shaft (2431), a rotating shaft (24412) coaxially rotatably mounted in the hollow shaft (2431) and the conveying channel (24411), a conveying unit (24413) disposed on the rotating shaft (24412), a plurality of discharge ports (24414) circumferentially arrayed on the side wall of the conveying channel (24411), and a discharge channel (24415) disposed on the ball-dividing wheel (24) and connected to the discharge ports (24414). The conveying unit (24413) is configured as a propeller blade, which includes a discharge section (244131) correspondingly disposed in the conveying channel (24411), a feeding section (244132) disposed at the other end of the rotating shaft (24412) relative to the discharge section (244131) and located in the hollow shaft (2431), and a return section (244133) located between the discharge section (244131) and the feeding section (244132) and located in the hollow shaft (2431). The spiral direction of the blades of the discharge section (244131) and the feeding section (244132) is the same and opposite to that of the return section (244133).

2. The shot blasting machine for an automotive air conditioning compressor cover plate according to claim 1, characterized in that, The material distribution mechanism (243) also includes two sets of partitions (2435), which are fixedly installed on the outside of the ball distribution wheel (24) and make the ball distribution wheel (24) and the directional sleeve (23) form a conveying area (2430).

3. The shot blasting machine for an automotive air conditioning compressor cover plate according to claim 1, characterized in that, The screening unit (2432) includes a through hole (24321) opened on the side wall of the hollow shaft (2431), a tapered tube (24322) coaxially connected to the through hole (24321) and with its small end facing inward, and springs arranged in a circumferential array at the free end of the tapered tube (24322).

4. A shot blasting machine for an automotive air conditioning compressor cover plate according to claim 1, characterized in that, The power assembly a (2434) includes a gear ring a (24341) coaxially mounted inside the directional sleeve (23) and a gear a (24342) coaxially connected to the hollow shaft (2431) and meshing with the gear ring a (24341).

5. A shot blasting machine for an automotive air conditioning compressor cover plate according to claim 1, characterized in that, The length of the feeding section (244132) is L, and the length of the return section (244133) is l, so L:l = 3:

1.

6. A shot blasting machine for an automotive air conditioning compressor cover plate according to claim 1, characterized in that, The power assembly b (2442) includes a gear b (24421) fixed coaxially with the rotating shaft (24412), several sets of gears c (24422) distributed in a circumferential array at the end of the conveying channel (24411) and meshing with the gear b (24421), and a gear ring b (24423) fixedly installed on the ball-dividing wheel (24) and meshing with several sets of gears b (24421).

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