A sandblasting device for cast steel parts

Abstract

This utility model discloses a sandblasting device for cast steel parts, relating to the field of cast steel part processing technology. It aims to solve problems such as difficulty in supporting and driving large annular cast steel parts, uneven sandblasting, and poor sand recovery during sandblasting. The device includes a base, a sandblasting machine, and a recovery box. The base is equipped with multiple sets of arc-shaped support seats and drive seats, with support rollers and drive rollers working together to support and drive the cast steel parts. A collection bin and a cover form a sandblasting chamber, housing a U-shaped rotatable sandblasting pipe frame and nozzles. The sandblasting machine is connected to a high-pressure air source to transport sand, and the recovery box recovers sand under negative pressure using a blower. The drive system uses gear transmission, driving the cast steel parts to rotate through stable support. This provides stable support and effective drive for large annular cast steel parts, allowing them to rotate smoothly during sandblasting, facilitating all-around sandblasting and improving sandblasting quality and efficiency. Simultaneously, it enables timely sand recovery, enhancing both practicality and environmental friendliness.

Description

Technical Field

[0001] This utility model relates to the field of steel casting processing technology, and in particular to a sandblasting device for steel castings. Background Technology

[0002] Sandblasting is an important process in the production of cast steel parts. It can effectively remove impurities and oxide scale from the surface of cast steel parts, improve the surface finish and quality, and enhance the adhesion and effect of subsequent processing such as coating and electroplating.

[0003] However, sandblasting large ring-shaped cast steel parts presents numerous challenges. Traditional sandblasting equipment struggles to provide stable support and effective drive for these parts, leading to instability in their position and uneven sandblasting, thus affecting both quality and efficiency. Furthermore, the blasting chamber design of traditional equipment is often flawed, preventing comprehensive sandblasting of large ring-shaped cast steel parts. Additionally, the recovery of sand after blasting is often untimely and incomplete, resulting in resource waste and environmental pollution.

[0004] Therefore, this application provides a sandblasting device for cast steel parts to meet the requirements. Utility Model Content

[0005] The purpose of this application is to provide a sandblasting device for cast steel parts, so as to solve the problem that large ring-shaped cast steel parts are not convenient to sandblast in the prior art, and to achieve stable support, effective driving and all-round sandblasting treatment for large ring-shaped cast steel parts, thereby improving sandblasting quality and efficiency, and facilitating sand recycling.

[0006] To achieve the above objectives, this application provides the following technical solution: a sandblasting device for cast steel parts, comprising a base, a sandblasting machine, and a recycling bin;

[0007] The base is equipped with support seats, drive seats, collection chambers, and drive motors. Support rollers are evenly arranged on the support seats. There are multiple sets of arc-shaped support seats, which are arranged in a circle. There are gaps between adjacent support seats, and drive seats and collection chambers are respectively located in the gaps. Drive rollers are rotatably connected to the drive seats. The axes of the support rollers and drive rollers are both located on the radial side of the circle where the support seats are located. The drive rollers are driven by the drive motor and are used to drive the cast steel parts to rotate. The top of the collection chamber is covered with a cover. The side wall of the cover has a through groove for the casting to pass through. The collection chamber and the cover are combined to form a sandblasting chamber. The sandblasting chamber is equipped with a sandblasting pipe frame. The sandblasting pipe frame is equipped with multiple sets of evenly distributed spray nozzles for sandblasting. The circular arrangement of multiple sets of arc-shaped support seats can stably support large annular cast steel parts. Driven by the drive motor, the drive rollers can drive the cast steel parts to rotate, which facilitates all-round sandblasting. The sandblasting chamber design allows the sandblasting process to be carried out in a closed space, reducing sand splashing and improving sandblasting efficiency and safety.

[0008] The sandblasting machine is equipped with an air source interface for connecting a high-pressure air source. The bottom of the sandblasting machine is connected to the sandblasting pipe frame through a conveying pipe. The high-pressure air source enters the sandblasting machine through the air source interface. After being processed by the sandblasting machine, the sand is conveyed to the sandblasting pipe frame through the conveying pipe, providing power and sand source for the sandblasting operation.

[0009] The top of the recycling bin is equipped with an exhaust fan, and the side wall of the recycling bin is connected to the collection chamber through a recycling pipe. When the exhaust fan is working, a negative pressure is formed in the recycling pipe and the collection chamber, which draws the used sand in the sandblasting chamber into the recycling bin through the collection pipe, realizing the recycling and reuse of sand and reducing resource waste and environmental pollution.

[0010] Furthermore, there are two sets of drive seats arranged symmetrically. The top of the base is equipped with a drive shaft and a drive motor. There are two sets of drive shafts. The drive motor drives the drive rollers through the drive shafts. The two sets of drive rollers rotate in the same circumference around the circle formed by the support seats. The drive rollers are all covered with protective sleeves. The symmetrical arrangement of the two sets of drive seats and drive rollers can provide a more stable driving force, making the rotation of the cast steel parts smoother. The protective sleeves can protect the drive rollers, reduce wear, extend service life, and enhance the friction between the drive rollers and the cast steel parts, thereby enhancing driving stability.

[0011] Furthermore, the output end of the drive motor is equipped with a drive gear, one end of the transmission shaft is equipped with a driven gear, and the end of the transmission shaft drives the drive roller. Both sets of driven gears mesh with the drive gear. Through gear transmission, power can be accurately transmitted, ensuring that the speed and direction of the drive roller are consistent, thereby improving the stability and reliability of the drive.

[0012] Furthermore, the two sets of transmission shafts are coaxially arranged, and both the driving gear and the driven gear are helical gears. The end of the transmission shaft is provided with a first transmission gear, and the shaft of the drive roller is provided with a second transmission gear. The first transmission gear and the second transmission gear mesh and transmit power. The design of helical gears and two-stage gear transmission can realize power transmission in different directions, making the structural layout more reasonable and adapting to the overall design requirements of the sandblasting device.

[0013] Furthermore, the conveying pipe penetrates the side wall of the collection chamber and connects to the sandblasting pipe frame. The bottom of the collection chamber is equipped with a collection pipe connected to the recovery pipe. The sandblasting pipe frame is U-shaped, with one end of the top of the sandblasting pipe frame sealed and the other end rotatably connected to a top pipe. The size of the top pipe matches that of the sandblasting pipe frame, and multiple sets of nozzles are also evenly arranged on the lower side of the top pipe. The U-shaped sandblasting pipe frame and the top pipe enable all-round sandblasting treatment of the upper, lower, and side surfaces of large annular cast steel parts. The rotatable design of the top pipe facilitates the provision of space when hoisting cast steel parts and improves the convenience of installing cast steel parts.

[0014] Furthermore, the top edge of the collection chamber is provided with positioning posts, which are arranged in multiple sets and symmetrically. The top of the positioning posts is chamfered. The bottom edge of the cover is adapted to the top edge of the collection chamber. The bottom edge of the cover is provided with positioning holes, which are arranged in multiple sets and adapted to the positioning posts. Through the cooperation of the positioning posts and positioning holes, the cover can be installed and removed conveniently and quickly, ensuring the sealing of the sandblasting chamber. At the same time, the chamfer design facilitates the installation of the cover.

[0015] In summary, the technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model, through the design of multiple sets of arc-shaped support seats and drive rollers, can stably support and effectively drive large ring-shaped cast steel parts, enabling the cast steel parts to rotate smoothly during the sandblasting process, facilitating all-round sandblasting treatment and improving sandblasting quality and efficiency.

[0017] 2. The sandblasting chamber has a reasonable structural design. The layout of the sandblasting pipe rack and nozzles can achieve all-round sandblasting of cast steel parts, ensuring uniform sandblasting effect. At the same time, the sand recovery system can recover used sand in a timely and effective manner, realize the recycling of resources, and reduce environmental pollution.

[0018] 3. The drive system adopts gear transmission, which is compact in structure and stable and reliable in transmission; the design of the sandblasting pipe frame and buckle cover facilitates installation, maintenance and use, and improves the practicality and operability of the sandblasting device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 A magnified structural diagram at point A;

[0022] Figure 3 This is a top view of the structure of this utility model;

[0023] Figure 4 This utility model Figure 3 A magnified structural diagram at point C;

[0024] Figure 5 This utility model Figure 3 A schematic diagram of the BB cross-sectional structure;

[0025] Figure 6 This utility model Figure 5 A magnified structural diagram at point D.

[0026] In the diagram: 1. Base; 2. Support seat; 3. Drive seat; 4. Collection bin; 5. Sandblasting machine; 6. Recycling box; 10. Drive motor; 11. Drive gear; 20. Support roller; 30. Drive roller; 31. Transmission shaft; 32. Driven gear; 33. Protective sleeve; 34. First transmission gear; 35. Second transmission gear; 40. Cover; 41. Positioning post; 42. Sandblasting pipe frame; 43. Top pipe; 44. Nozzle; 45. Collection pipe; 50. Air source interface; 51. Conveying pipe; 60. Exhaust fan; 61. Recycling pipe. Detailed Implementation

[0027] 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.

[0028] Example: Reference Figure 1-6 The sandblasting device shown includes a base 1, a sandblasting machine 5, and a recycling bin 6.

[0029] The base 1 is provided with a support seat 2, a drive seat 3, a collection chamber 4 and a drive motor 10. Four sets of arc-shaped support rollers 20 are evenly arranged on the support seat 2. The four sets of support seats 2 form a circle. There is a gap between adjacent support seats 2. The drive seat 3 is provided in the gap on the front and rear sides. The collection chamber 4 is provided in the gap on the left side. The drive roller 30 is rotatably connected to the drive seat 3. The axes of the support roller 20 and the drive roller 30 are both located on the radial side of the circle where the support seat 2 is located. The drive roller 30 is used to drive the cast steel part. The drive roller 30 is driven by the drive motor 10. The top of the collection chamber 4 is covered with a cover 40. The side wall of the cover 40 is provided with a through groove for the casting to pass through. The collection chamber 4 and the cover 40 are combined to form a sandblasting chamber. The sandblasting chamber is provided with a sandblasting pipe frame 42. The sandblasting pipe frame 42 is provided with a nozzle 44 for sandblasting. There are multiple sets of nozzles 44 and they are evenly distributed.

[0030] The sandblasting machine 5 is equipped with an air source interface 50, which is used to connect to a high-pressure air source. The bottom of the sandblasting machine 5 is connected to the sandblasting pipe frame 42 through a delivery pipe 51.

[0031] The top of the recycling bin 6 is equipped with an exhaust fan 60, and the side wall of the recycling bin 6 is connected to the collection chamber 4 through a recycling pipe 61.

[0032] As one implementation method in this embodiment, to enhance the stability of the cast steel part during rotation, such as... Figure 1 , Figure 3 As shown, there are two sets of drive seats 3 arranged symmetrically. The top of the base 1 is provided with two sets of transmission shafts 31 and drive motors 10. The drive motors 10 drive the drive rollers 30 through the transmission shafts 31. The two sets of drive rollers 30 rotate in the same circumference around the circle formed by the support seats 2. The drive rollers 30 are all covered with protective sleeves 33.

[0033] As one implementation method in this embodiment, to achieve synchronous rotation of the drive roller 30, such as... Figure 4 As shown, the output end of the drive motor 10 is provided with a drive gear 11, one end of the transmission shaft 31 is provided with a driven gear 32, and the end of the transmission shaft 31 drives the drive roller 30. Both sets of driven gears 32 mesh with the drive gear 11.

[0034] As one implementation method in this embodiment, for ease of installation, such as Figure 2 , Figure 4 As shown, two sets of transmission shafts 31 are coaxially arranged. Both the driving gear 11 and the driven gear 32 are helical gears. The end of the transmission shaft 31 is provided with a first transmission gear 34, and the shaft of the driving roller 30 is provided with a second transmission gear 35. The first transmission gear 34 and the second transmission gear 35 mesh and transmit power.

[0035] As one implementation method in this embodiment, to facilitate the placement of the annular cast steel part onto the support base 2, such as... Figure 6 As shown, the conveying pipe 51 penetrates the side wall of the collection chamber 4 and is connected to the sandblasting pipe frame 42. The bottom of the collection chamber 4 is provided with a collection pipe 45 connected to the recovery pipe 61. The sandblasting pipe frame 42 is U-shaped. One end of the top of the sandblasting pipe frame 42 is sealed, and the other end is rotatably connected to the top pipe 43. The size of the top pipe 43 matches that of the sandblasting pipe frame 42. Multiple sets of nozzles 44 are also evenly provided on the lower side of the top pipe 43.

[0036] As one implementation method in this embodiment, to facilitate the installation of the combination cover 40 and the collection bin 4, such as Figure 6 As shown, the top edge of the collection chamber 4 is provided with positioning posts 41. There are four sets of positioning posts 41 arranged symmetrically. The top of the positioning posts 41 is chamfered. The bottom edge of the cover 40 is adapted to the top edge of the collection chamber 4. The bottom edge of the cover 40 is provided with positioning holes. There are multiple sets of positioning holes adapted to the positioning posts 41.

[0037] Working principle of this practical application: When this sandblasting device is working, firstly, the large annular cast steel component is hoisted and placed on the support structure composed of the arc-shaped support base 2. At this time, the cast steel component also falls on the drive base 3. During placement, first remove the cover 40 from the collection chamber 4 and rotate the top pipe 43 to ensure that the top of the sandblasting pipe frame 42 is unobstructed. Then, the large annular cast steel component is hoisted and placed on the support base 2, and the cover 40 is fastened onto the collection chamber 4. The positioning column 41 and the positioning hole cooperate to facilitate the assembly of the two. During this process, part of the cast steel component falls to the inside of the sandblasting pipe frame 42, which is then the starting base. The drive motor 10 on the base 1 drives the driven gear 32 at one end of the transmission shaft 31 to rotate via the drive gear 11 at the output end of the drive motor 10. Since the transmission shaft 31 is coaxially arranged and the drive gear 11 and the driven gear 32 are helical gears, the power is transmitted to the second transmission gear 35 on the shaft of the drive roller 30 via the first transmission gear 34 at the end of the transmission shaft 31, so that the two sets of drive rollers 30 rotate in the same circumference around the circle formed by the support base 2. The support roller 20 supports the cast steel part and guides the rotation, thereby driving the cast steel part to rotate. The protective sleeve 33 can enhance the friction and ensure the driving stability.

[0038] Meanwhile, high-pressure air enters the sandblasting machine 5 through the air source interface 50. After being processed by the sandblasting machine 5, the sand is transported to the sandblasting pipe frame 42 through the conveying pipe 51. The sandblasting pipe frame 42 is U-shaped and the top is rotatably connected to the top pipe 43. The nozzles 44 evenly distributed on both spray the sand to perform all-round sandblasting treatment on the rotating cast steel parts, removing impurities and oxide scale from the surface of the cast steel parts. When the cast steel parts rotate, they pass through the U-shaped sandblasting pipe frame 42 and the top pipe 43, realizing continuous sandblasting cleaning.

[0039] During the sandblasting process, the used sand falls into the collection bin 4. The exhaust fan 60 at the top of the recycling bin 6 operates, and the rotating cast steel part blocks the through slot, creating a negative pressure in the recycling pipe 61 and the collection bin 4. The collection pipe 45 at the bottom of the collection bin 4 sucks the sand into the recycling bin 6, realizing the recycling and reuse of the sand.

[0040] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0041] Components not described in detail in this article are existing technologies.

[0042] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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 sandblasting device for cast steel parts, characterized in that, include: A base (1) is provided with a support seat (2), a drive seat (3), a collection bin (4), and a drive motor (10). Support rollers (20) are evenly arranged on the support seat (2). There are multiple sets of support seats (2) that are arc-shaped. The multiple sets of support seats (2) form a circle. There is a gap between adjacent support seats (2). The drive seat (3) and the collection bin (4) are respectively provided in the gap. A drive roller (30) is rotatably connected to the drive seat (3). The shafts of the support roller (20) and the drive roller (30) are connected. The lines are all located on the radial side of the circle where the support base (2) is located. The drive roller (30) is used to drive the cast steel parts. The drive roller (30) is driven by the drive motor (10). The top of the collection chamber (4) is covered with a cover (40). The side wall of the cover (40) is provided with a through groove for the casting to pass through. The collection chamber (4) and the cover (40) are combined to form a sandblasting chamber. The sandblasting chamber is provided with a sandblasting pipe frame (42). The sandblasting pipe frame (42) is provided with a nozzle (44) for sandblasting. There are multiple sets of nozzles (44) and they are evenly distributed. A sandblasting machine (5) is provided with an air source interface (50), which is used to connect a high-pressure air source. The bottom of the sandblasting machine (5) is connected to the sandblasting pipe frame (42) through a delivery pipe (51). A recycling bin (6) is provided with an exhaust fan (60) on its top, and the side wall of the recycling bin (6) is connected to the collection chamber (4) through a recycling pipe (61).

2. The sandblasting device for cast steel parts according to claim 1, characterized in that: The drive base (3) has two sets and is symmetrically arranged. The top of the base (1) is provided with a drive shaft (31) and a drive motor (10). The drive shaft (31) has two sets. The drive motor (10) drives the drive roller (30) through the drive shaft (31). The two sets of drive rollers (30) rotate in the same circumference around the circle formed by the support base (2). The drive roller (30) is covered with a protective sleeve (33).

3. The sandblasting device for cast steel parts according to claim 2, characterized in that: The output end of the drive motor (10) is provided with a drive gear (11), and one end of the transmission shaft (31) is provided with a driven gear (32). The end of the transmission shaft (31) drives the drive roller (30), and both sets of driven gears (32) mesh with the drive gear (11).

4. The sandblasting device for cast steel parts according to claim 3, characterized in that: The two sets of transmission shafts (31) are coaxially arranged. The driving gear (11) and the driven gear (32) are both helical gears. The end of the transmission shaft (31) is provided with a first transmission gear (34). The shaft of the driving roller (30) is provided with a second transmission gear (35). The first transmission gear (34) and the second transmission gear (35) mesh and transmit power.

5. The sandblasting device for cast steel parts according to claim 1, characterized in that: The delivery pipe (51) penetrates the side wall of the collection chamber (4) and is connected to the sandblasting pipe frame (42). The bottom of the collection chamber (4) is provided with a collection pipe (45) connected to the recovery pipe (61). The sandblasting pipe frame (42) is U-shaped. One end of the top of the sandblasting pipe frame (42) is sealed, and the other end is rotatably connected to a top pipe (43). The size of the top pipe (43) matches that of the sandblasting pipe frame (42). Multiple sets of nozzles (44) are also evenly provided on the lower side of the top pipe (43).

6. The sandblasting device for cast steel parts according to claim 1, characterized in that: The top edge of the collection chamber (4) is provided with positioning posts (41), and there are multiple sets of positioning posts (41) arranged symmetrically. The top of the positioning posts (41) is provided with a chamfer. The bottom edge of the cover (40) is adapted to the top edge of the collection chamber (4). The bottom edge of the cover (40) is provided with positioning holes, and there are multiple sets of positioning holes adapted to the positioning posts (41).

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