Spraying device and spraying process for processing sphere of polycrystalline silicon spherical regulating valve

Abstract

The invention discloses a sphere spraying device and technology for machining of a polycrystalline silicon spherical regulating valve, and belongs to the technical field of sphere spraying for machining of polycrystalline silicon spherical regulating valves. The sphere spraying device and technology for machining of the polycrystalline silicon spherical regulating valve comprise a workbench and a supporting frame fixed beside the workbench; a supersonic spraying machine used for spraying the surface of the adjusting valve ball is installed on the supporting frame, two limiting rods used for limiting the spraying position of the adjusting valve ball are symmetrically arranged on the workbench, a guide sliding rail is fixedly installed on the surface of the workbench, a movable seat is slidably connected to the guide sliding rail, and a fixed seat is installed on the upper end face of the movable seat. The limiting rod is slidably connected into the fixing base in a penetrating mode. The adjusting valve ball can do reciprocating rotation while transversely reciprocating in the spraying machining process, the spraying range is expanded, and it is kept that the surface of the ball can be subjected to one-time spraying forming.

Description

Technical Field

[0001] The invention relates to the technical field of polysilicon spherical regulating valve processing sphere spraying, in particular to a polysilicon spherical regulating valve processing sphere spraying device and a spraying process. Background Art

[0002] The ball of the regulating valve is processed by supersonic spraying to improve the wear resistance, corrosion resistance and service life of the ball valve. The supersonic spraying technology uses high-speed airflow to accelerate the spraying material to supersonic speed, and the shock wave heats the coating material to a molten or semi-molten state. The high-speed particles hit the surface of the substrate, generating shock waves, causing the particles to melt, deform and adhere to the substrate, and finally cool to form a coating, thereby improving the performance of the processed parts.

[0003] For example, the patent with publication number CN221951494U discloses a casting spraying device for electric regulating valve production. By setting up this equipment, the casting can be rotated and sprayed, and the operation is relatively simple, so that the casting can be sprayed in all directions, and its spraying efficiency is improved; it includes a base frame, a bidirectional screw, a fixed block, four sets of slide rails, two sets of mobile frames, a locking device, two sets of lifting mechanisms, two sets of rotating devices, two sets of driving devices and two sets of supporting devices, the bidirectional screw is located inside the base frame, the two sets of lifting mechanisms are respectively installed on the top of the two sets of mobile frames, the two sets of rotating devices are respectively installed on the two sets of lifting mechanisms, the two sets of driving devices are respectively installed on the two sets of rotating devices, and the two sets of supporting devices are respectively installed on the two sets of driving devices.

[0004] For example, the patent with publication number CN118835191B discloses a wear-resistant ball valve ball spraying device and a supersonic spraying process to solve the technical problem of coating cracking or falling off caused by poor bonding performance between the surface coating of a large-caliber ball valve and the workpiece surface in the prior art; it includes a base and a spindle box and a feeding mechanism respectively arranged on the base; the spindle box is provided with a spindle for driving the ball of the ball valve to be processed to rotate; the feeding mechanism includes a guide rail arranged on the base and a feeding rack movably connected to the guide rail; the feeding rack is provided with a feeding rod coaxially arranged with the spindle and used to insert and fix the ball; the base is provided with a spraying group Parts and processing technology components; both the spraying components and the processing technology components act on the ball; they can effectively improve the production efficiency of the ball valve ball, improve the stability of product quality, and reduce production costs; however, the volume of some existing large-scale regulating valve balls is large, and the supersonic spraying range is limited. The spraying range cannot completely cover the surface of the ball. Even if the ball is rotated during the processing, there are still local areas that are not within the spraying range, which is not conducive to the one-time spraying processing of the regulating valve ball. In addition, the temperature distribution of some existing regulating valve balls is uneven during the processing, which easily leads to uneven distribution of coating thickness and hardness, thereby reducing the bonding strength and wear resistance of the coating.

[0005] In view of the above problems, it is urgently necessary to carry out innovative design based on the original polysilicon spherical regulating valve processing sphere spraying device. Summary of the invention

[0006] The purpose of the present invention is to provide a polysilicon spherical regulating valve processing ball spraying device and spraying process, so as to solve the problem mentioned in the above background technology that some existing large regulating valve balls are large in volume, the supersonic spraying range is limited, the spraying range cannot completely cover the surface of the ball, and even if the ball is rotated during the processing, there are still local areas that are not within the spraying range, which is not conducive to the one-time spraying processing of the regulating valve ball.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a polysilicon spherical regulating valve processing ball spraying device and spraying process, comprising a workbench and a support frame fixed next to the workbench, a supersonic sprayer for spraying the surface of the regulating valve ball is installed on the support frame, two groups of limit rods for limiting the spraying processing position of the regulating valve ball are symmetrically arranged on the workbench, a guide slide rail is fixedly installed on the surface of the workbench, a movable seat is slidably connected to the guide slide rail, a fixed seat is installed on the upper end surface of the movable seat, and the limit rod passes through and is slidably connected in the fixed seat; a driving support is fixedly installed on the workbench, a power threaded rod is rotatably connected to the driving support, and the power threaded rod is threadedly connected to the movable seat; a shifting mechanism for driving the limit rod to move back and forth laterally to adjust the spraying range of the regulating valve ball is arranged on the fixed seat; a steering mechanism for driving the limit rod to rotate back and forth to further adjust the spraying range of the regulating valve ball is also arranged on the fixed seat.

[0008] Preferably, the shifting mechanism comprises a rotating shaft rotatably mounted on a fixed seat, a toothed rotating rod is coaxially connected to the rotating shaft, and the toothed rotating rod penetrates and is slidably connected to one end of the limiting rod.

[0009] Preferably, a sleeve is slidably engaged inside the fixed seat, the limit rod is rotatably installed in the sleeve, the upper surface of the sleeve is fixedly connected to a transmission frame, the transmission frame is connected to the output end of the electric drive telescopic rod, and the electric drive telescopic rod is fixedly installed on the fixed seat.

[0010] Preferably, the steering mechanism includes a mounting seat fixedly mounted on the surface of the moving seat, a driven bevel gear is rotatably connected to the mounting seat, and the driven bevel gear is coaxially connected to the rotating shaft; the driven bevel gear is meshedly connected to the driving bevel gear, and the driving bevel gear is rotatably connected to the mounting seat.

[0011] Preferably, the upper end surface of the active bevel gear is coaxially connected with a plane gear, the plane gear is arranged on the central axis of the transmission frame, and a plurality of racks are fixed to one side of the inner wall of the transmission frame; the racks are meshingly connected with the plane gear.

[0012] Preferably, a plurality of racks are arranged at equal intervals on the inner side wall of the transmission frame, and the inner side wall of the transmission frame does not contact the outer side of the plane gear.

[0013] Preferably, the workbench is provided with a temperature control mechanism for controlling the spraying processing temperature of the regulating valve ball.

[0014] Preferably, the temperature control mechanism includes a through groove opened on the workbench, a plurality of flame nozzles are obliquely arranged on one side of the through groove, and a plurality of cooling curved pipes are obliquely arranged on the other side of the through groove, and the flame nozzles and the cooling curved pipes are correspondingly arranged below the limit rod.

[0015] Preferably, a U-shaped bracket is fixed on the upper surface of the workbench, a cylindrical rod is fixedly connected to the U-shaped bracket, an elastic block is snap-connected to the outside of the cylindrical rod, and a heat-insulating cover is fixedly installed on the elastic block; a metal cross bar is fixed on the inner side of the heat-insulating cover, a plurality of metal curved rods are connected to the metal cross bar at equal intervals; the metal curved rods, flame nozzles and cooling curved pipes are distributed in staggered intervals.

[0016] A polysilicon spherical regulating valve processing sphere spraying device, and a spraying process are also disclosed. The specific method steps are as follows: S1. Ball pretreatment: Before spraying, the surface of the regulating valve ball needs to be thoroughly cleaned and pretreated, including removing rust, oil stains and other impurities on the surface of the ball to ensure the bonding strength between the coating and the substrate.

[0017] S2. Define the processing position, set the regulating valve ball between the two limit rods, adjust the movable seat to control the limit rod to clamp and limit it outside the regulating valve ball, and keep the ball spraying process stable.

[0018] S3. Selection of spraying materials. Commonly used spraying materials include WC-12Co, Cr3C2-NiCr composite powder, and tungsten carbide alloy. These materials have high hardness, high wear resistance and good corrosion resistance, and are suitable for high temperature, high pressure and strong corrosion environment.

[0019] S4. Spraying parameter control: During supersonic spraying, the flame temperature is controlled at 1900°C, the spraying speed is 300m / s-500m / s, and the powder feeding amount is 20-30SCFH.

[0020] S5. Spraying process: The supersonic spraying machine accelerates the spraying material to supersonic speed by high-speed airflow, and heats the coating material to a molten or semi-molten state through shock waves, and then impacts the surface of the sphere at high speed to form a dense coating. During the spraying process, the shifting mechanism and steering mechanism are used to control the reciprocating movement and rotation of the regulating valve ball to expand the spraying range of the sphere.

[0021] S6. Adjust the temperature. During the spraying process, adjust the surface temperature of the regulating valve ball so that the coating fits better on the surface of the ball.

[0022] Compared with the prior art, the beneficial effect of the present invention is that the polysilicon spherical regulating valve processing ball spraying device clamps the two limit rods on both sides of the regulating valve ball by relatively moving the limit rods, so that the regulating valve ball is confined in front of the supersonic sprayer nozzle, assisting it to complete the spraying process.

[0023] Furthermore, a shifting mechanism is provided on the fixed seat for driving the limit rod to move back and forth laterally so as to adjust the spraying range of the regulating valve ball. During the spraying process, the electric telescopic rod is operated to control the reciprocating movement of the transmission frame, and the transmission frame drives the sleeve and the limit rod to move back and forth synchronously, so that the regulating valve ball moves back and forth laterally corresponding to the nozzle of the supersonic spray machine, thereby expanding its spraying range.

[0024] The fixed seat is also provided with a steering mechanism for driving the limit rod to rotate back and forth to further regulate the spraying range of the regulating valve ball. During the lateral movement of the transmission frame, a plurality of racks equidistantly arranged on the inner side drive the plane gear to rotate intermittently. Under the transmission action of the active bevel gear and the driven bevel gear, the rotating shaft, the toothed rotating rod and the limit rod are driven to rotate synchronously, so that the limit rod can intermittently rotate back and forth while moving back and forth laterally, thereby further expanding the spraying range of the regulating valve ball.

[0025] Furthermore, a temperature control mechanism for controlling the spraying temperature of the regulating valve ball is provided on the workbench. The surface temperature of the regulating valve ball is regulated by the flame nozzle and the cooling curved pipe to keep the surface temperature of the regulating valve ball uniformly distributed during the spraying process.

[0026] The heat insulation cover is installed on the workbench. The metal curved rod inside the heat insulation cover can quickly absorb the temperature transferred by the flame nozzle and the cooling curved pipe, and evenly transmit the temperature to the outside of the regulating valve ball, to assist in controlling the uniformity of the surface temperature of the regulating valve ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the supersonic spraying machine of the present invention.

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the workbench of the present invention.

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable seat of the present invention.

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting rod of the present invention.

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the electric drive telescopic rod of the present invention.

[0032] Figure 6It is a schematic diagram of the cross-sectional structure of the fixing seat of the present invention.

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the driven bevel gear of the present invention.

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of the rack of the present invention.

[0035] Fig. 9 It is a schematic diagram of the three-dimensional structure of the metal curved rod of the present invention.

[0036] Fig.10 It is a schematic diagram of the three-dimensional structure of the heat preservation cover of the present invention.

[0037] In the figure: 1. workbench; 2. support frame; 3. supersonic sprayer; 4. limit rod; 5. guide slide rail; 6. moving seat; 7. fixed seat; 8. driving support; 9. power threaded rod; 10. rotating shaft; 11. toothed rotating rod; 12. sleeve seat; 13. transmission frame; 14. electric drive telescopic rod; 15. driven bevel gear; 16. driving bevel gear; 17. plane gear; 18. rack; 19. mounting seat; 20. through groove; 21. flame nozzle; 22. cooling curved pipe; 23. U-shaped bracket; 24. cylindrical rod; 25. elastic block; 26. insulation cover; 27. metal cross bar; 28. metal curved rod. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figure 1-Figure 10The present invention provides the following technical solutions: a polysilicon spherical regulating valve processing ball spraying device and spraying process, comprising a workbench 1 and a support frame 2 fixed beside the workbench 1, a supersonic sprayer 3 for spraying the surface of the regulating valve ball is installed on the support frame 2, two groups of limit rods 4 for limiting the spraying processing position of the regulating valve ball are symmetrically arranged on the workbench 1, a guide slide 5 is fixedly installed on the surface of the workbench 1, a moving seat 6 is slidably connected on the guide slide 5, a fixed seat 7 is installed on the upper end surface of the moving seat 6, and the limit rod 4 penetrates and is slidably connected in the fixed seat 7; a driving support 8 is fixedly installed on the workbench 1, a power threaded rod 9 is rotatably connected to the driving support 8, and the power threaded rod 9 is threadedly connected to the moving seat 6; a shifting mechanism for driving the limit rod 4 to move back and forth laterally to adjust the spraying range of the regulating valve ball is arranged on the fixed seat 7; a steering mechanism for driving the limit rod 4 to rotate back and forth to further adjust the spraying range of the regulating valve ball is also arranged on the fixed seat 7.

[0040] The shifting mechanism includes a rotating shaft 10 rotatably mounted on the fixing seat 7 , a toothed rotating rod 11 is coaxially connected to the rotating shaft 10 , and the toothed rotating rod 11 penetrates and is slidably connected to one end of the limiting rod 4 .

[0041] A sleeve seat 12 is slidably engaged inside the fixed seat 7, and the limit rod 4 is rotatably installed in the sleeve seat 12. A transmission frame 13 is fixedly connected to the upper surface of the sleeve seat 12. The transmission frame 13 is connected to the output end of the electric drive telescopic rod 14, and the electric drive telescopic rod 14 is fixedly installed on the fixed seat 7.

[0042] The steering mechanism includes a mounting seat 19 fixedly mounted on the surface of the moving seat 6, on which a driven bevel gear 15 is rotatably connected, and the driven bevel gear 15 is coaxially connected to the rotating shaft 10; the driven bevel gear 15 is meshedly connected with a driving bevel gear 16, and the driving bevel gear 16 is rotatably connected to the mounting seat 19.

[0043] The upper end surface of the driving bevel gear 16 is coaxially connected with a flat gear 17 . The flat gear 17 is arranged on the central axis of the transmission frame 13 . A plurality of racks 18 are fixed to one side of the inner wall of the transmission frame 13 . The racks 18 are meshedly connected with the flat gear 17 .

[0044] A plurality of racks 18 are arranged at equal intervals on the inner wall of the transmission frame 13 , and the inner wall of the transmission frame 13 does not contact the outer side of the plane gear 17 .

[0045] The regulating valve ball is set between the two limit rods 4 on the workbench 1, and the power threaded rod 9 on the driving support 8 is controlled to rotate. The movable seat 6 is controlled to move laterally on the guide rail 5 under the thread transmission. The movable seat 6 drives the fixed seat 7 and the limit rod 4 to move laterally synchronously, so that the limit rod 4 moves close to the regulating valve ball, and the regulating valve ball is limited on the workbench 1. At this time, the regulating valve ball is set in front of the nozzle of the supersonic sprayer 3, and the surface of the regulating valve ball is sprayed by the supersonic sprayer 3.

[0046] During the spraying process, the electric drive telescopic rod 14 is operated to control the transmission frame 13 to move back and forth laterally. The transmission frame 13 controls the sleeve 12 to slide back and forth laterally in the fixed seat 7. The sleeve 12 drives the limit rod 4 to move synchronously laterally. The limit rod 4 is sleeved on the outside of the toothed rotating rod 11 and moves. The two groups of limit rods 4 on the workbench 1 are controlled to move in the same direction, so that the regulating valve ball clamped and limited on the inner side of the limit rod 4 moves back and forth in the direction of the nozzle of the supersonic sprayer 3 to expand the spraying range.

[0047] While the transmission frame 13 moves back and forth laterally, the rack 18 on the inner side of the transmission frame 13 is meshed and connected with the plane gear 17, and the plane gear 17 can be controlled to rotate back and forth under the meshing transmission, and a plurality of racks 18 are arranged on the inner side of the transmission frame 13 at equal intervals, which can realize intermittent control of the rotation of the plane gear 17, and the plane gear 17 drives the active bevel gear 16 below to rotate synchronously, and the active bevel gear 16 controls the rotation of the driven bevel gear 15 through the meshing transmission, and the driven bevel gear 15 drives the rotating shaft 10 to rotate, and the rotating shaft 10 controls the rotation of the limit rod 4 through the toothed rotating rod 11, so that the limit rod 4 can intermittently reciprocate while moving back and forth laterally, further expanding the spraying processing range of the regulating valve ball, so that the regulating valve ball can be sprayed and formed in one time.

[0048] Embodiment 2: Based on Embodiment 1, a temperature control mechanism is further disclosed, and its specific structure is as follows: a temperature control mechanism for controlling the spraying temperature of the regulating valve ball is provided on the workbench 1. The temperature control mechanism includes a through slot 20 provided on the workbench 1, a plurality of flame nozzles 21 are obliquely provided on one side of the through slot 20, and a plurality of cooling curved pipes 22 are obliquely provided on the other side of the through slot 20, and the flame nozzles 21 and the cooling curved pipes 22 are correspondingly provided below the limit rod 4.

[0049] A U-shaped bracket 23 is fixed on the upper surface of the workbench 1, a cylindrical rod 24 is fixedly connected to the U-shaped bracket 23, an elastic block 25 is snap-connected to the outside of the cylindrical rod 24, and a heat-insulating cover 26 is fixedly installed on the elastic block 25; a metal cross bar 27 is fixed to the inner side of the heat-insulating cover 26, and a plurality of metal curved rods 28 are connected to the metal cross bar 27 at equal intervals; the metal curved rods 28, the flame nozzle 21 and the cooling curved pipe 22 are arranged in a staggered manner.

[0050] Before processing, the insulation cover 26 is installed on the workbench 1 through the elastic clamp block 25. The metal curved rods 28 on the inner side of the insulation cover 26 are staggered between the flame nozzle 21 and the cooling curved pipe 22. During the spraying process, the surface temperature of the regulating valve ball can be quickly adjusted through the flame nozzle 21 and the cooling curved pipe 22 to maintain the quality of the spraying process. The adjusted temperature can be quickly transferred to the metal curved rod 28. The metal curved rod 28 is bent corresponding to the outer side of the regulating valve ball. During the rotation of the regulating valve ball, the surface of the regulating valve ball can evenly adjust the temperature. At the same time, the outer cover of the metal curved rod 28 is provided with an insulation cover 26. The insulation cover 26 can reduce the temperature loss of the metal curved rod 28, so that the surface temperature of the regulating valve ball can be better transferred and regulated.

[0051] A polysilicon spherical regulating valve processing sphere spraying device, and a spraying process are also disclosed. The specific method steps are as follows: S1. Ball pretreatment: Before spraying, the surface of the regulating valve ball needs to be thoroughly cleaned and pretreated, including removing rust, oil stains and other impurities on the surface of the ball to ensure the bonding strength between the coating and the substrate.

[0052] S2, limit the processing position, set the regulating valve ball between the two limit rods 4, adjust the movable seat 6 to control the limit rod 4 to clamp and limit it outside the regulating valve ball, and keep the ball spraying process stable; S3. Selection of spraying materials. Commonly used spraying materials include WC-12Co, Cr3C2-NiCr composite powder, and tungsten carbide alloy. These materials have high hardness, high wear resistance, and good corrosion resistance, and are suitable for high temperature, high pressure, and strong corrosion environments; S4, spraying parameter control, during supersonic spraying, control the flame temperature at 1900℃, the spraying speed at 300m / s-500m / s, and the powder feeding amount at 20-30SCFH; S5, spraying processing, the supersonic sprayer 3 uses high-speed airflow to accelerate the spray material to supersonic speed, and heats the coating material to a molten or semi-molten state through shock waves, and then hits the surface of the sphere at high speed to form a dense coating. During the spraying process, the shift mechanism and the steering mechanism are used to control the reciprocating movement and rotation of the regulating valve ball to expand the spraying range of the sphere; S6. Adjust the temperature. During the spraying process, adjust the surface temperature of the regulating valve ball so that the coating fits better on the surface of the ball.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polysilicon spherical regulating valve processing ball spraying device, comprising a workbench (1) and a support frame (2) fixed next to the workbench (1), a supersonic spraying machine (3) for spraying the surface of the regulating valve ball is installed on the support frame (2), characterized in that: The workbench (1) is symmetrically provided with two groups of limit rods (4) for limiting the spraying processing position of the regulating valve ball. A guide rail (5) is fixedly installed on the surface of the workbench (1). A movable seat (6) is slidably connected to the guide rail (5). A fixed seat (7) is installed on the upper end surface of the movable seat (6). The limit rods (4) penetrate through and are slidably connected to the fixed seat (7). A driving support (8) is fixedly mounted on the workbench (1), a power threaded rod (9) is rotatably connected to the driving support (8), and the power threaded rod (9) is threadedly connected to the movable seat (6); The fixed seat (7) is provided with a displacement mechanism for driving the limit rod (4) to move back and forth laterally so as to adjust the spraying range of the regulating valve ball; The fixing seat (7) is also provided with a steering mechanism for driving the limit rod (4) to reciprocate and further adjust the spraying range of the regulating valve ball.

2. The polysilicon spherical regulating valve processing ball spraying device according to claim 1 is characterized in that: The displacement mechanism comprises a rotating shaft (10) rotatably mounted on a fixed seat (7), a toothed rotating rod (11) being coaxially connected to the rotating shaft (10), and the toothed rotating rod (11) passing through and slidably connected to one end of the limiting rod (4).

3. The device for spraying a ball for processing a polysilicon spherical regulating valve according to claim 2 is characterized in that: The fixed seat (7) is slidably engaged with a sleeve seat (12) inside, the limit rod (4) is rotatably mounted in the sleeve seat (12), the upper surface of the sleeve seat (12) is fixedly connected with a transmission frame (13), the transmission frame (13) is connected to the output end position of the electric drive telescopic rod (14), and the electric drive telescopic rod (14) is fixedly mounted on the fixed seat (7).

4. The polysilicon spherical regulating valve processing ball spraying device according to claim 1 is characterized in that: The steering mechanism comprises a mounting seat (19) fixedly mounted on the surface of the moving seat (6), a driven bevel gear (15) being rotatably connected to the mounting seat (19), and the driven bevel gear (15) being coaxially connected to the rotating shaft (10); The driven bevel gear (15) is meshedly connected to a driving bevel gear (16), and the driving bevel gear (16) is rotatably connected to a mounting seat (19).

5. The device for spraying a ball for processing a polysilicon spherical regulating valve according to claim 4 is characterized in that: The upper end surface of the active bevel gear (16) is coaxially connected to a planar gear (17), the planar gear (17) is arranged on the central axis of the transmission frame (13), and a plurality of racks (18) are fixed to one side of the inner wall of the transmission frame (13); The rack (18) is meshingly connected with the plane gear (17).

6. The device for spraying a ball for processing a polysilicon spherical regulating valve according to claim 5, characterized in that: A plurality of racks (18) are arranged at equal intervals on the inner wall of the transmission frame (13), and the inner wall of the transmission frame (13) does not contact the outer side of the plane gear (17).

7. The device for spraying a ball for processing a polysilicon spherical regulating valve according to claim 1, characterized in that: The workbench (1) is provided with a temperature control mechanism for controlling the spraying processing temperature of the regulating valve ball.

8. The device for spraying a ball for processing a polysilicon spherical regulating valve according to claim 7, characterized in that: The temperature control mechanism comprises a through groove (20) provided on the workbench (1), a plurality of flame nozzles (21) being obliquely arranged on one side of the through groove (20), a plurality of cooling curved pipes (22) being obliquely arranged on the other side of the through groove (20), and the flame nozzles (21) and the cooling curved pipes (22) being correspondingly arranged below the limit rod (4).

9. The polysilicon spherical regulating valve processing ball spraying device according to claim 8, characterized in that: A U-shaped bracket (23) is fixed on the upper surface of the workbench (1), a cylindrical rod (24) is fixedly connected to the U-shaped bracket (23), an elastic block (25) is snap-fitted to the outside of the cylindrical rod (24), and a heat-insulating cover (26) is fixedly mounted on the elastic block (25); A metal cross bar (27) is fixed to the inner side of the heat-insulating cover (26), and a plurality of metal curved bars (28) are connected to the metal cross bar (27) at equal intervals. The metal curved rods (28), the flame nozzles (21) and the cooling curved pipes (22) are arranged in a staggered manner.

10. A polysilicon spherical regulating valve processing ball spraying device according to any one of claims 1 to 9, characterized in that: A spraying process is also disclosed, and the specific method steps are as follows: S1. Ball pretreatment: Before spraying, the surface of the regulating valve ball needs to be thoroughly cleaned and pretreated, including removing rust, oil stains and other impurities on the surface of the ball to ensure the bonding strength between the coating and the substrate; S2, limiting the processing position, setting the regulating valve ball between the two limiting rods (4), adjusting the movable seat (6) to control the limiting rod (4) to clamp and limit it outside the regulating valve ball, and maintaining the stability of the ball spraying process; S3. Selection of spraying materials. Commonly used spraying materials include WC-12Co, Cr3C2-NiCr composite powder, and tungsten carbide alloy. These materials have high hardness, high wear resistance, and good corrosion resistance, and are suitable for high temperature, high pressure, and strong corrosion environments; S4, spraying parameter control, during supersonic spraying, control the flame temperature at 1900℃, the spraying speed at 300m / s-500m / s, and the powder feeding amount at 20-30SCFH; S5. Spraying process, supersonic spraying machine (3) uses high-speed airflow to accelerate the spraying material to supersonic speed, and heats the coating material to a molten or semi-molten state through shock waves, and then hits the surface of the sphere at high speed to form a dense coating. During the spraying process, the shift mechanism and steering mechanism are used to control the reciprocating movement and rotation of the regulating valve ball to expand the spraying range of the sphere; S6. Adjust the temperature. During the spraying process, adjust the surface temperature of the regulating valve ball so that the coating fits better on the surface of the ball.

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