Surface polishing mechanism for steam generator

Abstract

The utility model relates to the technical field of polishing devices, in particular to a surface polishing mechanism of a steam generator, which fixes a workpiece through a fixing device, drives the workpiece to rotate, and polishes the surfaces of the workpieces in different shapes through a top moving device and a side moving device which are matched with a polishing device. A workpiece does not need to be fixed for multiple times, so that the labor intensity of operators is reduced; comprising a fixing device, a top moving device, two sets of grinding devices and a side moving device, the top moving device is installed on the fixing device, the side moving device is installed on the fixing device, and the two sets of grinding devices are installed on the top moving device and the side moving device respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a surface grinding mechanism for a steam generator. Background Art

[0002] The furnace is the core part of the steam generator, and its material is mostly carbon steel or stainless steel. During use, the furnace may be oxidized by high temperature or the accumulation of smoke and dust, resulting in a rough or rusty surface. In order to maintain the normal operation of the furnace and extend its service life, it is necessary to polish it regularly to remove rust and oxides on the surface and restore a smooth surface.

[0003] The Chinese utility model patent with application number CN201922361857.7 in the prior art involves a deburring and grinding device, including a fixed frame, a rotating motor, a clamping plate, a connecting cover, a sliding rod, etc., which can grind workpieces of different sizes.

[0004] However, the above device is not efficient enough for plane grinding in actual use, especially for the grinding of rectangular furnace, which requires manual and continuous replacement of the workpiece position, increasing the labor intensity of the operator. At the same time, after adding coolant or washing liquid during the grinding process, the washing liquid outflow will affect the operating environment. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a steam generator surface grinding mechanism which fixes the workpiece by a fixing device and drives the workpiece to rotate, and grinds the surfaces of workpieces of different shapes by a top moving device and a side moving device in cooperation with a grinding device. There is no need to fix the workpiece multiple times, thereby reducing the labor intensity of the operator.

[0006] The utility model discloses a surface grinding mechanism for a steam generator, comprising a fixing device, a top moving device, two groups of grinding devices and a side moving device, wherein the top moving device is mounted on the fixing device, the side moving device is mounted on the fixing device, and the two groups of grinding devices are mounted on the top moving device and the side moving device respectively; the fixing device is used to fix the workpiece and drive the workpiece to rotate, and the top moving device and the side moving device cooperate with the grinding device to grind the surfaces of workpieces of different shapes, without the need to fix the workpiece multiple times, thereby reducing the labor intensity of operators.

[0007] Preferably, the fixing device includes a frame, a driving motor, a rotating platform, a first reduction motor, a lead screw and a limit block. A processing platform is arranged in the middle of the frame, a driving motor is installed on the lower end surface of the processing platform, and a rotating platform is installed on the upper end surface of the processing platform. A cross slot is opened on the upper part of the rotating platform, and two groups of lead screws are cross-installed in the cross slot, and two groups of limit blocks are symmetrically installed on each group of lead screws through nuts. Two groups of first reduction motors are installed on the side of the rotating platform and are respectively connected with the two groups of lead screws, and the output end of the driving motor passes through the processing platform and is connected with the rotating platform; the furnace core is placed on the upper end surface of the rotating platform, and then the two groups of first reduction motors are turned on to transmit power to the two groups of lead screws to drive the two groups of lead screws to rotate, and then drive the four groups of limit blocks to fix the position of the furnace core, and then the driving motor is turned on to transmit power to the rotating platform to drive the workpiece on the rotating platform to rotate, so as to cooperate with the grinding device to grind and clean the surface, thereby improving the practicability of the device.

[0008] Preferably, the top moving device includes an electric slide rail, a sliding block, a two-way lead screw, a second reduction motor and a top platform. The upper part of the frame is respectively installed with a group of electric slide rails through the front and rear of the bracket, and the two groups of sliding blocks are respectively installed on the two groups of electric slide rails, and the two ends of the two-way lead screw are respectively connected to the two groups of sliding blocks. A second reduction motor is installed on the front end surface of the front sliding block, and the output end of the second reduction motor passes through the front sliding block and is connected to the two-way lead screw, and the top platform is connected to the two-way lead screw through a nut. Two groups of light rods are arranged between the two groups of sliding blocks, and are respectively located on the left and right sides of the two-way lead screw, and the two groups of light rods pass through the top platform; the top platform is driven to move laterally through the cooperation of the electric slide rail and the sliding block, and the second reduction motor is turned on to transmit power to the two-way lead screw to drive the two-way lead screw to rotate, thereby driving the top platform to move back and forth on the two-way lead screw, and driving the grinding device to move and grind on the upper surface of the workpiece, thereby improving the practicality of the device.

[0009] Preferably, the grinding device includes a first electric cylinder, a baffle frame, a third reduction motor and a grinding block, the first electric cylinder is installed on the lower end surface of the top platform, the baffle frame is installed on the moving end of the first electric cylinder, the third reduction motor is installed on the upper part of the baffle frame, the output end of the third reduction motor passes through the lower end surface of the baffle frame and extends to the lower side of the baffle frame, and the grinding block is installed on the output end of the baffle frame; the first electric cylinder is controlled to extend and retract so that the device can adapt to working surfaces of different heights, the third reduction motor is turned on to transmit power to the grinding block to drive the grinding block to rotate, and the cleaning and grinding of the upper end surface of the workpiece is completed, and the baffle frame is used to block the dirt splashed during the grinding process to prevent a large amount of dirt from covering the third reduction motor and affecting the heat dissipation of the third reduction motor, thereby improving the practicability of the device.

[0010] Preferably, the side moving device includes a lifting frame, a second electric cylinder, a third electric cylinder, a side platform and a limit rod, and rectangular holes are vertically opened on the front end surfaces of the front and rear groups of brackets on the left side of the frame, and the lifting frame is located in the two groups of rectangular holes, and a group of second electric cylinders are vertically installed at the front and rear lower parts of the frame respectively, and the moving ends of the two groups of second electric cylinders are respectively connected to the front and rear parts of the lower end surface of the lifting frame, and the third electric cylinder is installed on the front end surface of the lifting frame, and the moving end of the third electric cylinder extends through the front end surface of the lifting frame to the middle of the lifting frame and is connected to the side platform, and multiple groups of limit rods are arranged in the middle of the lifting frame, and the multiple groups of limit rods pass through the side platform; by controlling the elongation of the two groups of second electric cylinders, the device can grind the sides of workpieces at different heights, and by controlling the elongation of the third electric cylinder, the side platform is moved back and forth on the multiple groups of limit rods, so that the device can grind the flat side of the workpiece, and cooperate with the baffle frame to complete the grinding of the circular side of the workpiece, and a grinding device is installed on the right side surface of the side platform, which improves the adaptability of the device.

[0011] Preferably, it also includes a high-pressure water pipe and a water retaining ring. The frame is installed with a high-pressure water pipe, the outer side of the rotating platform is installed with a water retaining ring, the inner side of the water retaining ring is provided with a drainage port, and the lower side of the frame is provided with a water collecting tank. The high-pressure water pipe is used to facilitate the operator to perform auxiliary flushing during the grinding process, and the water retaining ring is used to reduce the pollution to the operating environment caused by the random flow of liquid on the platform, thereby improving the practicability of the device.

[0012] Preferably, a reverse switch is also included. A set of reverse switches are respectively installed on the front end surface of the side platform and the front end surface of the legs of the frame behind the side platform. The two sets of reverse switches respectively control the extension and contraction of the third electric cylinder. The two sets of reverse switches enable the side platform to automatically change the forward and backward movement direction, thereby improving the degree of automation of the device when grinding the furnace with a flat side.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the workpiece is fixed by a fixing device and driven to rotate, and the surfaces of workpieces of different shapes are polished by a top moving device and a side moving device in cooperation with a polishing device, without the need to fix the workpiece multiple times, thereby reducing the labor intensity of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0016] Figure 3 It is a third axonometric structural schematic diagram of the utility model;

[0017] Figure 4It is a first partial enlarged structural schematic diagram of the utility model;

[0018] Figure 5 It is a second partial enlarged structural schematic diagram of the utility model;

[0019] Markings in the attached drawings: 1. Frame; 2. Drive motor; 3. Rotating platform; 4. First reduction motor; 5. Lead screw; 6. Limit block; 7. Electric slide rail; 8. Sliding block; 9. Bidirectional lead screw; 10. Second reduction motor; 11. Top platform; 12. First electric cylinder; 13. Baffle frame; 14. Third reduction motor; 15. Grinding block; 16. Lifting frame; 17. Second electric cylinder; 18. Third electric cylinder; 19. Side platform; 20. Limit rod; 21. High-pressure water pipe; 22. Water retaining ring; 23. Reverse switch. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The top moving device and the side moving device are both installed on the fixing device, and the two sets of grinding devices are installed on the top moving device and the side moving device respectively;

[0023] First, place the furnace on the upper end surface of the rotating platform 3, then turn on the two sets of first reduction motors 4 to transmit power to the two sets of lead screws 5 to drive the two sets of lead screws 5 to rotate, and then drive the four sets of limit blocks 6 to fix the position of the furnace, then turn on the drive motor 2 to transmit power to the rotating platform 3 to drive the workpiece on it to rotate, so as to cooperate with the grinding device to grind and clean the surface, then control the first electric cylinder 12 on the side platform 19 and the top platform 11 to extend so that the grinding block 15 contacts the surface of the workpiece, and at the same time turn on the third reduction motor 14 to transmit power to the grinding block 15 to drive the grinding block 15 to rotate to grind the surface of the furnace, and at the same time, change the side grinding position by controlling the extension of the second electric cylinder 17 and the third electric cylinder 18;

[0024] The fixing device comprises a frame 1, a driving motor 2, a rotating platform 3, a first reduction motor 4, a lead screw 5 and a limit block 6. A processing platform is arranged in the middle of the frame 1, a driving motor 2 is mounted on the lower end surface of the processing platform, a rotating platform 3 is mounted on the upper end surface of the processing platform, a cross slot is opened on the upper part of the rotating platform 3, two groups of lead screws 5 are cross-mounted in the cross slot, two groups of limit blocks 6 are symmetrically mounted on each group of lead screws 5 through nuts, two groups of first reduction motors 4 are mounted on the side of the rotating platform 3 and are respectively connected to the two groups of lead screws 5, and the output end of the driving motor 2 passes through the processing platform and is connected to the rotating platform 3;

[0025] The top moving device includes an electric slide rail 7, a sliding block 8, a bidirectional lead screw 9, a second reduction motor 10 and a top platform 11. A group of electric slide rails 7 are respectively installed on the upper part of the frame 1 through the front and rear of the bracket. The two groups of sliding blocks 8 are respectively installed on the two groups of electric slide rails 7. The two ends of the bidirectional lead screw 9 are respectively connected with the two groups of sliding blocks 8. The front end surface of the front sliding block 8 is installed with a second reduction motor 10. The output end of the second reduction motor 10 passes through the front sliding block 8 and is connected with the bidirectional lead screw 9. The top platform 11 is connected with the bidirectional lead screw 9 through a nut. Two groups of light rods are arranged between the two groups of sliding blocks 8, which are respectively located on the left and right sides of the bidirectional lead screw 9. The two groups of light rods pass through the top platform 11.

[0026] The grinding device includes a first electric cylinder 12, a baffle frame 13, a third reduction motor 14 and a grinding block 15. The first electric cylinder 12 is installed on the lower end surface of the top platform 11, the baffle frame 13 is installed on the moving end of the first electric cylinder 12, the third reduction motor 14 is installed on the upper part of the baffle frame 13, the output end of the third reduction motor 14 passes through the lower end surface of the baffle frame 13 and extends to the lower side of the baffle frame 13, and the grinding block 15 is installed on the output end of the baffle frame 13;

[0027] The side moving device includes a lifting frame 16, a second electric cylinder 17, a third electric cylinder 18, a side platform 19 and a limit rod 20. Rectangular holes are vertically opened on the front end surfaces of the two groups of brackets on the left side of the frame 1. The lifting frame 16 is located in the two groups of rectangular holes. A group of second electric cylinders 17 are vertically installed at the lower part of the front side and the rear side of the frame 1 respectively. The moving ends of the two groups of second electric cylinders 17 are respectively connected to the front and rear of the lower end surface of the lifting frame 16. The third electric cylinder 18 is installed on the front end surface of the lifting frame 16. The moving end of the third electric cylinder 18 passes through the front end surface of the lifting frame 16 and extends to the middle part of the lifting frame 16 and is connected to the side platform 19. A plurality of limit rods 20 are arranged in the middle part of the lifting frame 16, and the plurality of limit rods 20 pass through the side platform 19.

[0028] The workpiece is fixed by a fixing device and driven to rotate. The top moving device and the side moving device cooperate with the grinding device to grind the surfaces of workpieces of different shapes. There is no need to fix the workpiece multiple times, which reduces the labor intensity of the operator.

[0029] Example 2

[0030] Improved on the basis of the first embodiment, including a high-pressure water pipe 21, a water retaining ring 22 and a reverse switch 23, the high-pressure water pipe 21 is installed on the frame 1, and the water retaining ring 22 is installed on the outer side of the rotating platform 3;

[0031] It also includes a reverse switch 23, and a set of reverse switches 23 are respectively installed on the front end surface of the side platform 19 and the front end surface of the legs of the frame 1 behind the side platform 19;

[0032] The high-pressure water pipe 21 facilitates the operator to assist in flushing during the grinding process, and the water retaining ring 22 reduces the pollution to the operating environment caused by the random flow of liquid on the platform, thereby improving the practicability of the device; the two sets of reverse switches 23 enable the side platform 19 to have the ability to automatically change the forward and backward movement direction, thereby improving the degree of automation of the device when grinding the furnace with a flat side.

[0033] like Figures 1 to 5 As shown, the utility model is a surface grinding mechanism for a steam generator. When it is working, the furnace is first placed on the upper end surface of the rotating platform 3, and then the two groups of first reduction motors 4 are turned on to transmit power to the two groups of lead screws 5 to drive the two groups of lead screws 5 to rotate, and then the four groups of limit blocks 6 are driven to fix the position of the furnace, and then the drive motor 2 is turned on to transmit power to the rotating platform 3 to drive the workpiece on it to rotate, so as to cooperate with the grinding device to grind and clean the surface, and then the first electric cylinder 12 on the side platform 19 and the top platform 11 is controlled to extend so that the grinding block 15 contacts the surface of the workpiece, and at the same time, the third reduction motor 14 is turned on to transmit power to the grinding block 15 to drive the grinding block 15 to rotate and grind the surface of the furnace, and at the same time, the side grinding position can be changed by controlling the extension amount of the second electric cylinder 17 and the third electric cylinder 18.

[0034] The third electric cylinder 18, the second electric cylinder 17, the second reduction motor 10, the first reduction motor 4, the rotating platform 3 and the reverse switch 23 of the steam generator surface grinding mechanism of the utility model are purchased on the market. The technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative labor.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steam generator surface grinding mechanism; characterized in that: It comprises a fixing device, a top moving device, two sets of grinding devices and a side moving device. The top moving device is installed on the fixing device, the side moving device is installed on the fixing device, and the two sets of grinding devices are respectively installed on the top moving device and the side moving device.

2. A steam generator surface grinding mechanism according to claim 1, characterized in that: The fixing device comprises a frame (1), a driving motor (2), a rotating platform (3), a first reduction motor (4), a lead screw (5) and a limit block (6); a processing platform is arranged in the middle of the frame (1); a driving motor (2) is mounted on the lower end surface of the processing platform; a rotating platform (3) is mounted on the upper end surface of the processing platform; a cross groove is provided on the upper part of the rotating platform (3); two groups of lead screws (5) are cross-mounted in the cross groove in an upper and lower manner; two groups of limit blocks (6) are symmetrically mounted on each group of lead screws (5) through nuts; two groups of first reduction motors (4) are mounted on the side of the rotating platform (3) and are respectively connected to the two groups of lead screws (5); and an output end of the driving motor (2) passes through the processing platform and is connected to the rotating platform (3).

3. A steam generator surface grinding mechanism according to claim 2, characterized in that: The top moving device comprises an electric slide rail (7), a sliding block (8), a bidirectional lead screw (9), a second reduction motor (10) and a top platform (11). A group of electric slide rails (7) are respectively installed on the upper part of the frame (1) through a bracket at the front and rear sides. Two groups of sliding blocks (8) are respectively installed on the two groups of electric slide rails (7). Two ends of the bidirectional lead screw (9) are respectively connected to the two groups of sliding blocks (8). The front end surface of the front sliding block (8) is installed with a second reduction motor (10). The output end of the second reduction motor (10) passes through the front sliding block (8) and is connected to the bidirectional lead screw (9). The top platform (11) is connected to the bidirectional lead screw (9) through a nut. Two groups of light rods are arranged between the two groups of sliding blocks (8) and are respectively located on the left and right sides of the bidirectional lead screw (9). The two groups of light rods pass through the top platform (11).

4. A steam generator surface grinding mechanism as claimed in claim 3, characterized in that: The grinding device comprises a first electric cylinder (12), a baffle frame (13), a third reduction motor (14) and a grinding block (15); the first electric cylinder (12) is mounted on the lower end surface of the top platform (11); the baffle frame (13) is mounted on the movable end of the first electric cylinder (12); the third reduction motor (14) is mounted on the upper part of the baffle frame (13); the output end of the third reduction motor (14) passes through the lower end surface of the baffle frame (13) and extends to the lower side of the baffle frame (13); and the grinding block (15) is mounted on the output end of the baffle frame (13).

5. A steam generator surface grinding mechanism as claimed in claim 2, characterized in that: The side moving device comprises a lifting frame (16), a second electric cylinder (17), a third electric cylinder (18), a side platform (19) and a limiting rod (20). Rectangular holes are vertically opened on the front end surfaces of the two groups of brackets on the left side of the frame (1). The lifting frame (16) is located in the two groups of rectangular holes. A group of second electric cylinders (17) are respectively vertically installed on the front side and the lower part of the rear side of the frame (1). The moving ends of the two groups of second electric cylinders (17) are respectively connected to the front and rear parts of the lower end surface of the lifting frame (16). The third electric cylinder (18) is installed on the front end surface of the lifting frame (16). The moving end of the third electric cylinder (18) passes through the front end surface of the lifting frame (16) and extends to the middle part of the lifting frame (16) and is connected to the side platform (19). A plurality of limiting rods (20) are arranged in the middle part of the lifting frame (16). The plurality of limiting rods (20) pass through the side platform (19).

6. A steam generator surface grinding mechanism according to claim 2, characterized in that: The machine also comprises a high-pressure water pipe (21) and a water retaining ring (22). The high-pressure water pipe (21) is installed on the frame (1), the water retaining ring (22) is installed on the outer side of the rotating platform (3), a drainage port is opened on the inner side of the water retaining ring (22), and a water collecting tank is arranged on the lower side of the frame (1).

7. A steam generator surface grinding mechanism according to claim 2, characterized in that: It also includes a reverse switch (23). A group of reverse switches (23) are respectively installed on the front end surface of the side platform (19) and the front end surface of the support leg of the rear frame (1) of the side platform (19). The two groups of reverse switches (23) respectively control the extension and contraction of the third electric cylinder (18).

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