A stable hook self-rotation mechanism based on cylinder surface shot blasting treatment

Abstract

This invention relates to the field of shot blasting machine technology, specifically to a stable hook rotation mechanism based on shot blasting treatment of cylinder surface. It includes a workpiece rotation mechanism mounted on a support rail, an input sprocket mounted on the workpiece rotation mechanism, a frame on one side of the workpiece rotation mechanism, a Y-axis linear module slidably mounted on the frame perpendicular to the travel direction of the workpiece rotation mechanism, a drive sprocket rotatably mounted on the Y-axis linear module, and a driven sprocket rotatably mounted on the frame. The straight line formed by the driven sprocket and the drive sprocket is perpendicular to the travel direction of the workpiece rotation mechanism. An arc-shaped groove coinciding with the central axis of the input sprocket is formed on the frame. An X-axis linear module is mounted on the frame, a transmission module is mounted on the input end of the X-axis linear module, and an adjusting sprocket is rotatably mounted on the bottom of the transmission module. A chain meshes with the adjusting sprocket, the driven sprocket, and the drive sprocket. The cooperation of the Y-axis linear module, the X-axis linear module, and the transmission module prevents dry blasting.

Description

Technical Field

[0001] This invention relates to the field of shot blasting machine technology, and specifically to a stable hook rotation mechanism based on shot blasting treatment of cylinder surface. Background Technology

[0002] A shot blasting machine is a shot blasting cleaning device that uses high-speed shot blasting to clean or strengthen the surface of castings. The shot blasting machine adopts a suspended stepping operation mode and mainly consists of a shot blasting unit, conveyor chain, shot blasting chamber, workpiece hanger, elevator, cyclone dust collector, filter dust collector, curtain separator, workpiece rotation mechanism, and electrical control cabinet. When the workpiece hanger enters the shot blasting chamber along with the conveyor chain, the chain drive mechanism moves to successfully engage with the input sprocket on the workpiece rotation mechanism, thereby driving the workpiece hanger to rotate within the blasting zone. The shot blasting unit continuously blasts shot blasts onto the surface of the workpiece within the blasting range, performing surface treatment.

[0003] In actual use, when the workpiece hanger enters the shot blasting chamber along the conveyor chain, there is a situation where the chain in the chain drive mechanism fails to connect with the input sprocket, that is, the sprocket and the chain slip. As a result, the workpiece hanger is not driven to rotate by the workpiece rotation mechanism, causing one side of the part on the workpiece hanger to be continuously treated by the shot blaster, resulting in a situation of empty blasting. This will lead to over-blasting damage to the part.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to design a stable hook rotation mechanism based on shot blasting of the cylinder surface to prevent empty throwing when the workpiece hanger docks with the workpiece rotation mechanism, thereby solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stable hook rotation mechanism based on shot blasting treatment of cylinder surface, comprising a workpiece rotation mechanism mounted on a bearing rail, an input sprocket mounted on the workpiece rotation mechanism, a frame provided on one side of the workpiece rotation mechanism, a Y-axis linear module slidably mounted on the frame perpendicular to the travel direction of the workpiece rotation mechanism, a drive sprocket rotatably mounted on the Y-axis linear module, a driven sprocket rotatably mounted on the frame, the straight line formed by the driven sprocket and the drive sprocket being perpendicular to the travel direction of the workpiece rotation mechanism, an arc-shaped groove coinciding with the central axis of the input sprocket being provided on the frame, an X-axis linear module mounted on the frame, a transmission module mounted on the input end of the X-axis linear module, an adjusting sprocket rotatably mounted on the bottom of the transmission module, and a chain meshing together on the adjusting sprocket, the driven sprocket, and the drive sprocket;

[0007] When the sprocket is adjusted to be located at one end of the arc groove, the chain forms a straight line on the driving sprocket and the driven sprocket. When the frame moves, the chain does not contact the input sprocket or the workpiece rotation mechanism. As the sprocket is adjusted to move to the other end of the arc groove, the chain gradually comes into contact with the input sprocket.

[0008] Preferably, the workpiece rotation mechanism includes a roller that is rolledly connected to the bearing rail, a top plate mounted on the bottom of the roller, suspension rods symmetrically mounted on the bottom of the top plate, a shield that is fixedly connected to the bottom of the two suspension rods, a rotating rod rotatably mounted inside the top plate, and the input sprocket fixedly mounted on the rotating rod.

[0009] Preferably, a workpiece hanger is detachably installed at the bottom of the rotating boom.

[0010] Preferably, when the driven sprocket is rotatably mounted on the frame and one end is located between the suspension rod and the input sprocket, the frame does not come into contact with either of them, and a groove matching the shape of the input sprocket is provided on one side of the frame.

[0011] Preferably, the Y-axis linear module includes a slide rail on the frame, a first slider slidably connected on the slide rail, a vertical plate fixedly installed on one side of the first slider, a first motor installed on the first slider, and an electric telescopic rod fixedly installed on the frame, with the output shaft end of the electric telescopic rod fixedly connected to the vertical plate.

[0012] Preferably, the transmission module includes a second slider mounted on the output end of the X-axis linear module, a connecting shaft that passes through and slidably connects one end of the second slider, a spring that is fixedly connected to one end of the connecting shaft, a third slider that is fixedly connected to the other end of the connecting shaft, a guide rod that passes through and slidably connects inside the third slider, and a transmission shaft that is rotatably mounted at the end of the guide rod. The sprocket is rotatably connected to the transmission shaft, and the spring is located inside the second slider.

[0013] Preferably, the X-axis linear module includes a guide rail mounted on the frame, a mounting plate fixedly connected to both ends of the guide rail, a light rod and a threaded rod fixedly connected between the mounting plates, a fourth slider slidably mounted on the light rod, and a second motor mounted on the mounting plate. The output end of the second motor is fixedly connected to the end of the threaded rod. The threaded rod passes through the fourth slider and is threadedly connected to the fourth slider. The second slider is fixedly mounted at the bottom of the fourth slider. Both the second slider and the third slider are slidably connected to the guide rail.

[0014] Preferably, an arc-shaped rack is fixedly connected to the frame, and a gear that meshes with the arc-shaped rack is fixedly installed on the drive shaft.

[0015] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0016] 1. This invention first adjusts the chain into a long strip shape and inserts it into the workpiece rotating mechanism, so that it does not contact the suspension rod and the input sprocket. Then, through the cooperation of the Y-axis linear module, the X-axis linear module and the transmission module, the chain is transformed into a triangle, so that the chain wraps around the input sprocket and engages with it for a certain length, thereby driving the input sprocket to rotate. This increases the contact length between the input sprocket and the chain and keeps it taut, thus ensuring stable driving.

[0017] 2. In this invention, the spring in the transmission module pushes the third slider away from the second slider, thereby tensioning the chain. Even if the chain slips slightly at first when it is wrapped around the input sprocket, the spring will continuously apply a force to the chain toward the input sprocket, thereby promoting the engagement of the chain with the input sprocket and preventing the chain from being thrown away.

[0018] 3. The present invention can also adaptively adjust the position of the drive shaft in the arc groove according to the change in the diameter of the input sprocket, thereby adapting to the input sprocket with a larger diameter by reducing the contact length between the chain and the input sprocket. 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 embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the workpiece rotation mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the frame inserted between the suspension rod and the input sprocket of the present invention;

[0023] Figure 4 This is a schematic diagram of the X-axis linear module of the present invention;

[0024] Figure 5 This is a schematic diagram showing the connection between each sprocket and chain in this invention;

[0025] Figure 6 This is a schematic diagram of the transmission module connection of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Load-bearing rail; 2. Workpiece rotation mechanism; 21. Hanging wheel; 22. Top plate; 23. Suspension rod; 24. Shielding cover; 25. Rotating hanging rod; 3. Input sprocket; 4. Frame; 5. Y-axis linear module; 51. Slide rail; 52. First slider; 53. Vertical plate; 54. First motor; 55. Electric telescopic rod; 6. Driving sprocket; 7. Driven sprocket; 8. Arc groove; 9. X-axis linear module; 91. Guide rail; 92. Mounting plate; 93. Smooth rod; 94. Threaded rod; 95. Fourth slider; 96. Second motor; 10. Transmission module; 101. Second slider; 102. Connecting shaft; 103. Spring; 104. Third slider; 105. Guide rod; 106. Transmission shaft; 11. Adjusting sprocket; 12. Chain; 13. Workpiece hanger; 14. Groove; 15. Arc rack; 16. Gear. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] This invention provides, for example Figures 1-6 The illustrated stable hook rotation mechanism based on shot blasting of cylinder surface includes a support rail 1, on which two rollers 21 are rolled. A top plate 22 is fixedly mounted on the bottom of the two rollers 21. Suspension rods 23 are symmetrically mounted on the bottom of the top plate 22. A shield 24 is fixedly connected to the bottom of the suspension rods 23. A rotating rod 25 is rotatably mounted inside the top plate 22. An input sprocket 3 is fixedly mounted on the rotating rod 25. A workpiece hanger 13 is detachably mounted on the bottom of the rotating rod 25. A conveyor chain is connected between the top plate 22 and the support rail 1. The conveyor chain drives the rollers 21 to move on the support rail 1, thereby moving the workpiece hanger 13 into the shot blasting chamber. When the input sprocket 3 rotates, it drives the rotating rod 25 to rotate, which in turn drives the workpiece hanger 13 to rotate, thus treating the workpiece surface. Here, the rollers 21, top plate 22, suspension rods 23, shield 24, rotating rod 25, and input sprocket 3 constitute the workpiece rotation mechanism 2.

[0031] A frame 4 is provided on one side of the workpiece rotation mechanism 2 and is slidably installed in the cleaning chamber. A slide rail 51 is provided on the frame 4, and a first slider 52 is slidably installed on the slide rail 51. A vertical plate 53 is fixedly installed on one side of the first slider 52, and a first motor 54 is fixedly installed on the top of the first slider 52. The end of the output shaft of the first motor 54 passes through the first slider 52 and is fixedly installed with a drive sprocket 6. At the same time, an electric telescopic rod 55 is fixedly installed on the frame 4. The end of the output shaft of the electric telescopic rod 55 is fixedly connected to the vertical plate 53. By extending or shortening the output shaft of the electric telescopic rod 55, the first slider 52 can be driven to slide on the slide rail 51, so that the movement direction of the drive sprocket 6 is perpendicular to the travel direction of the workpiece rotation mechanism 2. The slide rail 51, the first slider 52, the vertical plate 53, the first motor 54 and the electric telescopic rod 55 constitute the Y-axis linear module 5.

[0032] Two symmetrically distributed guide rails 91 are fixedly installed on the frame 4. Mounting plates 92 are fixedly installed at both ends of the guide rails 91. A smooth rod 93 is fixedly installed between the two mounting plates 92, and a threaded rod 94 is rotatably installed. A fourth slider 95 is slidably installed on the smooth rod 93. The threaded rod 94 and the fourth slider 95 are threadedly connected. A second motor 96 is installed on the mounting plate 92. The end of the output shaft of the second motor 96 is fixedly connected to the end of the threaded rod 94. The forward and reverse rotation of the output shaft of the second motor 96 can drive the threaded rod 94 to rotate forward and reverse, thereby driving the fourth slider 95 to slide on the smooth rod 93. The movement direction of the fourth slider 95 is the same as the travel direction of the workpiece rotation mechanism 2. Here, the guide rails 91, mounting plates 92, second motor 96, threaded rod 94, smooth rod 93 and fourth slider 95 constitute the X-axis linear module 9.

[0033] A groove 14, which mates with the input sprocket 3, is provided on the side of the frame 4 near the input sprocket 3. An arc-shaped rack 15 is fixedly installed on the frame 4. An arc-shaped groove 8, whose central axis coincides with the input sprocket 3, is provided on the frame 4. A second slider 101 is fixedly installed at the bottom of the fourth slider 95. A connecting shaft 102 is slidably installed through one end of the second slider 101. A spring 103 located inside the second slider 101 is fixedly installed at one end of the connecting shaft 102. A third slider 104 is fixedly installed at the other end of the connecting shaft 102. A guide rod 1 is slidably installed through the third slider 104. 05. A drive shaft 106 is rotatably mounted on one end of the guide rod 105. An adjusting sprocket 11 is fixedly mounted on the bottom of the drive shaft 106. A gear 16 that meshes with the arc-shaped rack 15 is also fixedly mounted on the drive shaft 106. A driven sprocket 7 is rotatably mounted on the frame 4 between the suspension rod 23 and the input sprocket 3. A chain 12 meshes together on the driven sprocket 7, the driving sprocket 6, and the input sprocket 3. The second slider 101, the connecting shaft 102, the spring 103, the third slider 104, the guide rod 105, and the drive shaft 106 constitute the transmission module 10.

[0034] In the initial state, the output shaft of the electric telescopic rod 55 is in an extended state, while the drive shaft 106 is located at the end of the arc-shaped groove 8 near the first motor 54. The driven sprocket 7 and the driving sprocket 6 stretch the chain 12 into a long strip, while the adjusting sprocket 11 maintains engagement with the chain 12. After the workpiece rotating mechanism 2 moves to the predetermined position, the existing hydraulic power equipment drives the frame 4 to approach the workpiece rotating mechanism 2. When the end of the frame 4 with the driven sprocket 7 is inserted between the suspension rod 23 and the input sprocket 3, such as... Figure 3 When shown, the frame 4 stops moving, and at this time the chain 12 is not in contact with the input sprocket 3 or the suspension rod 23;

[0035] Then, the second motor 96 and the electric telescopic rod 55 are started simultaneously. The electric telescopic rod 55 drives the first slider 52 to move closer to the driven sprocket 7. The second motor 96 drives the fourth slider 95 to move the second slider 101 away from the first motor 54. The second slider 101, through the spring 103, connecting shaft 102, third slider 104 and guide rod 105, drives the transmission shaft 106 to move from one end of the arc groove 8 to the other end. At this time, the transmission shaft 106 will drive the adjusting sprocket 11 and gear 16. Through the cooperation of gear 16, arc rack 15 and arc groove 8, the adjusting sprocket 11 will be driven to gradually move away from the first motor 54. The adjusting sprocket 11 will drive the chain 12, which was originally in a long strip shape, to gradually change into a triangle. One side of the triangular chain 12 will gradually wrap around the input sprocket 3, forming a more... With a long contact length, the input sprocket 3 and chain 12 are likely to be engaged, but not engaged. When the electric telescopic rod 55 stops shortening, and the output shaft of the second motor 96 continues to rotate a predetermined number of times, the spring 103 inside the second slider 101 will be compressed to keep the chain 12 taut. At this time, the output shaft of the first motor 54 is started to rotate, thereby driving the drive sprocket 6 to rotate, which in turn drives the chain 12 to move. At this time, the input sprocket 3 will not be engaged with the chain 12, so it will slip slightly. When slipping, the spring 103 will push the third slider 104 away from the second slider 101, thereby pushing the chain 12 to keep taut and applying a force to the input sprocket 3, so that the chain 12 locks the input sprocket 3 to complete the engagement, thereby driving the input sprocket 3 to rotate at a uniform speed in the same direction.

[0036] After the workpiece surface is processed, the output shaft of the electric telescopic rod 55 is extended, and the second motor 96 is reversed, so that the chain 12 can be restored from a triangular shape to a long strip shape, which makes it easy for the frame 4 to be pulled out from the workpiece rotating mechanism 2 without affecting the input sprocket 3.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application.

Claims

1. A stable hook rotation mechanism based on shot blasting treatment of cylinder surface, comprising a workpiece rotation mechanism (2) mounted on a bearing rail (1), wherein an input sprocket (3) is mounted on the workpiece rotation mechanism (2), characterized in that: A frame (4) is provided on one side of the workpiece rotation mechanism (2). A Y-axis linear module (5) is slidably installed on the frame (4) perpendicular to the travel direction of the workpiece rotation mechanism (2). A drive sprocket (6) is rotatably installed on the Y-axis linear module (5). A driven sprocket (7) is rotatably installed on the frame (4). The straight line formed by the driven sprocket (7) and the drive sprocket (6) is perpendicular to the travel direction of the workpiece rotation mechanism (2). An arc groove (8) is opened on the frame (4) that coincides with the central axis of the input sprocket (3). An X-axis linear module (9) is installed on the frame (4). A transmission module (10) is installed on the input end of the X-axis linear module (9). An adjusting sprocket (11) is rotatably installed at the bottom of the transmission module (10). A chain (12) meshes together on the adjusting sprocket (11), the driven sprocket (7), and the drive sprocket (6). When the sprocket (11) is positioned at one end of the arc groove (8), the chain (12) forms a straight line on the driving sprocket (6) and the driven sprocket (7). When the frame (4) moves, the chain (12) does not contact the input sprocket (3) and the workpiece rotation mechanism (2). As the sprocket (11) moves to the other end of the arc groove (8), the chain (12) gradually contacts the input sprocket (3).

2. The stable hook rotation mechanism based on shot blasting treatment of cylinder surface according to claim 1, characterized in that: The workpiece rotation mechanism (2) includes a roller (21) that is rolledly connected to the bearing rail (1), a top plate (22) installed at the bottom of the roller (21), suspension rods (23) symmetrically installed at the bottom of the top plate (22), a shield (24) that is fixedly connected to the bottom of the two suspension rods (23), a rotating rod (25) that is rotatably installed inside the top plate (22), and the input sprocket (3) fixedly installed on the rotating rod (25).

3. The stable hook rotation mechanism based on shot blasting treatment of cylinder surface according to claim 2, characterized in that: The bottom of the rotating rod (25) is detachably fitted with a workpiece hanger (13).

4. The stable hook rotation mechanism based on shot blasting treatment of cylinder surface according to claim 2, characterized in that: When the driven sprocket (7) is rotatably mounted on the frame (4) and one end is located between the suspension rod (23) and the input sprocket (3), the frame (4) does not come into contact with either of them. A groove (14) matching the shape of the input sprocket (3) is provided on one side of the frame (4).

5. The stable hook rotation mechanism based on shot blasting treatment of cylinder surface according to claim 1, characterized in that: The Y-axis linear module (5) includes a slide rail (51) on the frame (4), a first slider (52) slidably connected on the slide rail (51), a vertical plate (53) fixedly installed on one side of the first slider (52), a first motor (54) installed on the first slider (52), and an electric telescopic rod (55) fixedly installed on the frame (4). The end of the output shaft of the electric telescopic rod (55) is fixedly connected to the vertical plate (53).

6. The stable hook rotation mechanism based on shot blasting treatment of cylinder surface according to claim 1, characterized in that: The transmission module (10) includes a second slider (101) installed on the output end of the X-axis linear module (9), a connecting shaft (102) that passes through and slides through one end of the second slider (101), a spring (103) that is fixedly connected to one end of the connecting shaft (102), a third slider (104) that is fixedly connected to the other end of the connecting shaft (102), a guide rod (105) that passes through and slides through the third slider (104), and a transmission shaft (106) that is rotatably installed at the end of the guide rod (105). The sprocket is rotatably connected to the transmission shaft (106), and the spring (103) is located inside the second slider (101).

7. The stable hook rotation mechanism based on shot blasting treatment of cylinder surface according to claim 6, characterized in that: The X-axis linear module (9) includes a guide rail (91) mounted on the frame (4), a mounting plate (92) fixedly connected to both ends of the guide rail (91), a light rod (93) and a threaded rod (94) fixedly connected between the mounting plates (92), a fourth slider (95) slidably mounted on the light rod (93), and a second motor (96) mounted on the mounting plate (92). The output end of the second motor (96) is fixedly connected to the end of the threaded rod (94). The threaded rod (94) passes through the fourth slider (95) and is threadedly connected to the fourth slider (95). The second slider (101) is fixedly mounted on the bottom of the fourth slider (95). The second slider (101) and the third slider (104) are both slidably connected to the guide rail (91).

8. The stable hook rotation mechanism based on shot blasting treatment of cylinder surface according to claim 6, characterized in that: An arc-shaped rack (15) is fixedly connected to the frame (4), and a gear (16) that meshes with the arc-shaped rack (15) is fixedly installed on the transmission shaft (106).

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