Polishing mechanism for steam turbine high-pressure inner cylinder production

Abstract

The polishing mechanism for steam turbine high-pressure inner cylinder production comprises a polishing mechanical arm, a polishing table and a polishing piece fixedly connected to the rotating position of the polishing mechanical arm, a dust collection shell is arranged at the bottom of the polishing table, an opening is formed in the center of the surface of the polishing table, and the polishing piece is fixedly connected to the polishing mechanical arm. And two symmetrically-formed notches are formed in the surface of the polishing mechanical arm, limiting grooves are formed in the inner walls of the notches, and clamping mechanisms are arranged on the inner walls of the limiting grooves. The polishing device is reasonable in structure, the high-pressure inner cylinder of the steam turbine is clamped and fixed through the clamping mechanism, meanwhile, the polishing mechanical arm is used for polishing the high-pressure inner cylinder of the steam turbine through the polishing piece, and during polishing, generated dust is sucked into the dust suction shell through the dust suction component via the opening and is adsorbed through the dust removal component, so that the dust removal efficiency is improved. And the phenomena of low efficiency, non-uniform surface roughness of the processed product and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing, in particular to a polishing mechanism used in the production of a high-pressure inner cylinder of a steam turbine. Background Art

[0002] At present, the local polishing and deburring of the high-pressure inner cylinder of the steam turbine is mostly done by hand or by using handheld pneumatic and electric tools to grind, grind, file, etc., which easily leads to an increase in defective products, low efficiency, and uneven surface roughness of the processed products.

[0003] To this end, the present application proposes a polishing mechanism for use in the production of a high-pressure inner cylinder of a steam turbine, which solves the problem of inconvenience in local polishing of the high-pressure inner cylinder of a steam turbine. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a polishing mechanism for use in the production of high-pressure inner cylinders of turbines. The technical solution solves the local polishing and deburring operation of the high-pressure inner cylinders of turbines proposed in the above background technology, which is mostly processed by hand or using handheld pneumatic and electric tools for grinding, grinding, filing, etc., which easily leads to an increase in defective products, low efficiency and uneven surface roughness of the processed products.

[0005] To achieve the above-mentioned purpose, the utility model provides a polishing mechanism for the production of a high-pressure inner cylinder of a steam turbine, comprising a polishing mechanical arm, a polishing table and a polishing piece fixedly connected to the rotating part of the polishing mechanical arm, a dust collecting shell is provided at the bottom of the polishing table, an opening is provided at the center of the surface of the polishing table, two symmetrically arranged notches are provided on the surface of the polishing mechanical arm, a limiting groove is provided on the inner wall of the notch, and a clamping mechanism is provided on the inner wall of the limiting groove;

[0006] The top of the dust suction shell is connected to the opening of the polishing table, the inner wall of the dust suction shell is fixedly connected with a dust suction component, and the upper part of the inner wall of the dust suction shell is provided with a dust removal component matching the dust suction component.

[0007] Optionally, the clamping mechanism includes two sliding blocks symmetrically slidably connected to the inner wall of the limiting groove, a clamping plate fixedly connected to the surface of the sliding block, and a spring fixedly connected to the surface of the sliding block.

[0008] Optionally, the surface of the clamping plate has a rubber clamping sheet.

[0009] Optionally, the dust removal component includes a plurality of filter cottons fixedly connected to the inner wall of the dust collection shell.

[0010] Optionally, a filter screen is fixedly connected to the inner wall of the opening.

[0011] Optionally, the dust suction component includes an air pump fixedly connected to the bottom of the dust suction shell, a sealing plate fixedly connected to the inner surface of the dust suction shell, and an air suction pipe fixedly connected to the output end of the air pump (and an exhaust port opened on one side of the dust suction shell;

[0012] One end of the air extraction pipe passes through the sealing plate.

[0013] Optionally, an exhaust pipe is fixedly connected to the inner wall of the exhaust port, and a switch valve is provided in the horizontal section of the exhaust pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] First, the structure of the present application is reasonable. The high-pressure inner cylinder of the steam turbine is clamped and fixed by a clamping mechanism, and the high-pressure inner cylinder of the steam turbine is polished by a polishing mechanical arm through a polishing member. During polishing, the generated dust is sucked into the dust collecting shell through an opening by a dust collecting member, and the dust is adsorbed by a dust removal member. In summary, the low efficiency and uneven surface roughness of the processed product are avoided;

[0016] 2. The structure of the present application is reasonable. The vacuum pump is used to evacuate air through the vacuum pipe, so that the dust generated by polishing enters the dust collection shell through the opening. After that, the dust is filtered and adsorbed by multiple breathable filter cottons. Finally, the gas is discharged through the exhaust pipe, so as to treat the dust generated by polishing.

[0017] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 4 for Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the dust collecting shell in the utility model.

[0023] In the figure: 1. Polishing robot arm; 2. Polishing part; 3. Polishing table; 4. Dust collection shell; 5. Slot; 6. Clamping plate; 7. Rubber clamping piece; 8. Sliding block; 9. Filter; 10. Exhaust pipe; 11. Switch valve; 12. Spring; 13. Limiting groove; 14. Filter cotton; 15. Vacuum pump; 16. Vacuum pipe; 17. Sealing plate. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0025] Reference Figure 1-4 As shown, a polishing mechanism used in the production of a high-pressure inner cylinder of a steam turbine comprises a polishing mechanical arm 1, a polishing table 3 and a polishing member 2 fixedly connected to the rotating part of the polishing mechanical arm 1, a dust collecting shell 4 is provided at the bottom of the polishing table 3, an opening is provided at the center of the surface of the polishing table 3, two symmetrically arranged notches are provided on the surface of the polishing mechanical arm, a limiting groove 13 is provided on the inner wall of the notch 5, and a clamping mechanism is provided on the inner wall of the limiting groove 13;

[0026] The top of the dust collecting shell 4 is connected to the opening of the polishing table 3, the inner wall of the dust collecting shell 4 is fixedly connected with a dust collecting component, and the upper part of the inner wall of the dust collecting shell 4 is provided with a dust removing component matching the dust collecting component.

[0027] When in use, the high-pressure inner cylinder of the steam turbine is clamped and fixed by the clamping mechanism, and at the same time, the high-pressure inner cylinder of the steam turbine is polished by the polishing robot arm 1 through the polishing part 2. During polishing, the generated dust is sucked into the dust collection shell 4 through the opening through the dust collection component, and the dust is adsorbed by the dust removal component.

[0028] Furthermore, the clamping mechanism includes two sliding blocks 8 symmetrically slidably connected to the inner wall of the limiting groove 13, a clamping plate 6 fixedly connected to the surface of the sliding block 8 and a spring 12 fixedly connected to the surface of the sliding block 8, and the surface of the clamping plate 6 has a rubber clamping sheet 7.

[0029] Specifically, by pulling the two symmetrical clamping plates 6 and making the sliding block 8 slide in the limit groove 13 and the inner wall of the notch 5, the spring 12 is stretched. When the high-pressure inner cylinder of the steam turbine is placed in the center of the polishing table 3, the staff slowly loosens the two clamping plates 6. Under the action of the spring 12, the sliding block 8 is pulled to slide in the limit groove 13 and the inner wall of the notch 5 to reset the clamping plate 6, thereby clamping the high-pressure inner cylinder of the steam turbine. The rubber clamping sheet 7 is used to prevent the surface of the high-pressure inner cylinder of the steam turbine from being worn due to excessive clamping force.

[0030] Furthermore, the dust removal component includes a plurality of filter cottons 14 fixedly connected to the inner wall of the dust collection shell 4, the inner wall of the opening is fixedly connected with a filter screen 9, and the dust collection component includes an air pump 15 fixedly connected to the bottom of the dust collection shell 4, a sealing plate 17 fixedly connected to the inner surface of the dust collection shell 4, an air extraction pipe 16 fixedly connected to the output end of the air pump 15, and an exhaust port opened on one side of the dust collection shell 4;

[0031] One end of the exhaust pipe 16 passes through the sealing plate 17;

[0032] An exhaust pipe 10 is fixedly connected to the inner wall of the exhaust port, and a switch valve 11 is provided at the horizontal section of the exhaust pipe 10 .

[0033] Specifically, the switch valve 11 on the surface of the exhaust pipe 10 is opened, and air is extracted through the exhaust pipe 16 by the exhaust pump 15, so that the dust generated by polishing enters the dust collection shell 4 through the opening, and then the dust is filtered and adsorbed by multiple breathable filter cottons 14, and finally the gas is discharged through the exhaust pipe 10.

[0034] The working process of the present application is that when in use, by pulling the two symmetrical clamping plates 6, and making the sliding block 8 slide in the limit groove 13 and the inner wall of the slotted opening 5, the spring 12 is stretched. When the high-pressure inner cylinder of the steam turbine is placed in the center of the polishing table 3, the staff slowly loosens the two clamping plates 6. Under the action of the spring 12, the sliding block 8 is pulled to slide in the limit groove 13 and the inner wall of the slotted opening 5, so that the clamping plate 6 is reset to clamp the high-pressure inner cylinder of the steam turbine. The rubber clamping sheet 7 is used to avoid excessive force during clamping, which may cause wear on the surface of the high-pressure inner cylinder of the steam turbine. After clamping and fixing, the polishing mechanical arm 1 is started to polish the high-pressure inner cylinder of the steam turbine through the polishing part 2. During polishing, the switch valve 11 on the surface of the exhaust pipe 10 is opened, and the air is exhausted through the exhaust pipe 16 by the exhaust pump 15, so that the dust generated by polishing enters the dust collection shell 4 through the opening, and then the dust is filtered and adsorbed by multiple breathable filter cottons 14, and finally the gas is discharged through the exhaust pipe 10.

[0035] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A polishing mechanism for use in the production of a high-pressure inner cylinder of a steam turbine, characterized in that: The invention comprises a polishing mechanical arm (1), a polishing table (3) and a polishing member (2) fixedly connected to the rotating part of the polishing mechanical arm (1); a dust collecting shell (4) is provided at the bottom of the polishing table (3); an opening is provided at the center of the surface of the polishing table (3); two symmetrically arranged notches (5) are provided on the surface of the polishing mechanical arm (1); a limiting groove (13) is provided on the inner wall of the notch (5); and a clamping mechanism is provided on the inner wall of the limiting groove (13); The top of the dust collecting shell (4) is connected to the opening of the polishing table (3), the inner wall of the dust collecting shell (4) is fixedly connected with a dust collecting component, and the upper part of the inner wall of the dust collecting shell (4) is provided with a dust removal component that cooperates with the dust collecting component.

2. The polishing mechanism for producing a high-pressure inner cylinder of a steam turbine according to claim 1 is characterized in that: The clamping mechanism comprises two sliding blocks (8) symmetrically slidably connected to the inner wall of the limiting groove (13), a clamping plate (6) fixedly connected to the surface of the sliding block (8), and a spring (12) fixedly connected to the surface of the sliding block (8).

3. The polishing mechanism for producing a high-pressure inner cylinder of a steam turbine according to claim 2 is characterized in that: The surface of the clamping plate (6) is provided with a rubber clamping sheet (7).

4. The polishing mechanism for producing a high-pressure inner cylinder of a steam turbine according to claim 1 is characterized in that: The dust removal component comprises a plurality of filter cottons (14) fixedly connected to the inner wall of the dust collection shell (4).

5. The polishing mechanism for producing a high-pressure inner cylinder of a steam turbine according to claim 1 is characterized in that: A filter screen (9) is fixedly connected to the inner wall of the opening.

6. The polishing mechanism for producing a high-pressure inner cylinder of a steam turbine according to claim 1, characterized in that: The dust collecting component comprises an air pump (15) fixedly connected to the bottom of the dust collecting shell (4), a sealing plate (17) fixedly connected to the inner surface of the dust collecting shell (4), an air extraction pipe (16) fixedly connected to the output end of the air pump (15), and an exhaust port opened on one side of the dust collecting shell (4); One end of the air extraction pipe (16) passes through the sealing plate (17).

7. The polishing mechanism for producing a high-pressure inner cylinder of a steam turbine according to claim 6, characterized in that: An exhaust pipe (10) is fixedly connected to the inner wall of the exhaust port, and a switch valve (11) is provided at a horizontal section of the exhaust pipe (10).

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