Turbine valve shell abutting supporting tool

Abstract

The utility model discloses a steam turbine valve shell abutting supporting tool, and relates to the field of machining tools, the steam turbine valve shell abutting supporting tool comprises a bottom plate and two lifting assemblies arranged on the bottom plate, and a height difference exists between the output ends of the two lifting assemblies; one end of the connecting piece is arranged on the output end located at the high position, and the other end of the connecting piece is arranged on a lifting path of the output end located at the low position and is spaced from the output end located at the low position; and one end of the telescopic pull rod is arranged on the connecting piece, and the other end of the telescopic pull rod is arranged on the bottom plate. According to the steam turbine valve shell inner wall machining device, the protruding pipeline part of the steam turbine valve shell is supported in an abutting mode, limiting of the steam turbine valve shell is achieved, the stability of the steam turbine valve shell in the fixing process is improved, and then the working efficiency of the steam turbine valve body in the inner wall machining process is improved.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing tooling, and in particular to a steam turbine valve casing abutment support tooling. Background Art

[0002] Steam turbine valves include valve structures in steam turbines such as main steam valves and regulating valves. Steam turbine valve housings are the outer shells of various steam turbine valve bodies. When the steam turbine valve body is connected to other equipment, connecting pipes are reserved, so the surface of the steam turbine valve housing has corresponding protrusions of different heights.

[0003] The multiple protrusions at different positions make it difficult to stably place the turbine valve casing on a plane during the inner wall processing, thereby affecting the working efficiency of the inner wall processing of the turbine valve casing. Utility Model Content

[0004] In order to improve the working efficiency when processing the inner wall of a steam turbine valve body, the present application provides a steam turbine valve casing abutment support tool.

[0005] The present application provides a steam turbine valve casing abutment support tooling that adopts the following technical solution:

[0006] A steam turbine valve casing abutment support tooling comprises a base plate and two groups of lifting assemblies arranged on the base plate, wherein there is a height difference between the output ends of the two groups of lifting assemblies; further comprising a connecting piece, wherein one end of the connecting piece is arranged on the output end located at a high position, and the other end of the connecting piece is arranged on the lifting path of the output end located at a low position and is spaced from the output end located at a low position; further comprising a telescopic pull rod, wherein one end of the telescopic pull rod is arranged on the connecting piece, and the other end of the telescopic pull rod is arranged on the base plate.

[0007] By adopting the above technical scheme, the turbine valve housing is placed at the center of the base plate. For the pipeline protruding from the turbine valve housing, the pipe wall of the pipeline is placed between the connecting piece and the output end of the lifting assembly located at a low position, and the extension degree of the two sets of lifting assemblies is adjusted so that the pipe wall is clamped between the connecting piece and the output end of the lifting assembly located at a low position; on this basis, by reducing the length of the telescopic pull rod on the connecting piece, the connecting piece presses down on the pipe wall, and the pipe wall is pressed tightly against the output end of the lifting assembly located at a low position, thereby achieving abutment support for the pipeline protruding from the turbine valve housing, thereby enabling the turbine valve housing to be stably fixed on the base plate, facilitating the inner wall processing of the turbine valve body, and improving the work efficiency during processing.

[0008] Preferably, at least one guide groove is provided at the top of the base plate, and the guide groove extends from the edge of the base plate to the center of the base plate; a through groove is provided on the connecting piece along its length direction, and one end of the telescopic rod slides in the guide groove and the other end slides in the through groove.

[0009] By adopting the above technical solution, the guide groove can limit the end of the telescopic rod close to the bottom plate, thereby avoiding sliding to a certain extent when adjusting the length of the telescopic rod to make the connecting piece close to the pipe wall; at the same time, the guide groove and the through groove can be used to adjust the position of the telescopic rod relative to the pipeline, making the use of the tooling more flexible, so as to prevent the fixed-position telescopic rod from interfering with the inner wall processing of the turbine valve casing, thereby further improving the work efficiency when processing the inner wall of the turbine valve body.

[0010] Preferably, the base plate is slidably connected to a slider in the guide groove, the slider is connected to a threaded sleeve that rotates axially around the telescopic rod, the end of the threaded sleeve away from the slider is threadedly connected to the telescopic rod, and the end of the telescopic rod close to the connecting piece is provided with a locking piece for fixing the telescopic rod to the connecting piece.

[0011] By adopting the above technical solution, the locking piece is used to fix the telescopic rod on the connecting piece at the preset position of the through groove. On this basis, the threaded sleeve is rotated to move the telescopic rod toward the threaded sleeve, which can drive the connecting piece to pressurize the pipe wall and achieve stable clamping of the pipeline, so that the turbine valve casing can be stably fixed on the base plate, thereby improving the work efficiency when the inner wall of the turbine valve body is processed.

[0012] Preferably, a thread is formed on an outer curved surface wall of the telescopic rod near one end of the connecting member, and the locking member is a fixing nut threadedly connected to the end of the telescopic rod near the connecting member.

[0013] By adopting the above technical solution, the end of the telescopic rod away from the threaded sleeve extends out of the through slot, and the fixing nut is installed on the telescopic rod from the end of the telescopic rod away from the threaded sleeve. Continuing to rotate the fixing nut can make the fixing nut press against the side of the connecting piece away from the threaded sleeve, thereby fixing the end of the telescopic rod close to the connecting piece on the connecting piece.

[0014] Preferably, a short column is fixedly connected to one end of the slider close to the threaded sleeve, an annular groove is provided on the arcuate outer wall of the short column, and an annular protrusion adapted to the annular groove is fixedly connected to one end of the threaded sleeve close to the short column, and the annular protrusion is rotatably connected in the annular groove.

[0015] By adopting the above technical solution, the cooperation between the annular groove and the annular protrusion enables the threaded sleeve to be connected to the slider by rotating around its axial direction, and limits the displacement of the threaded sleeve along its axial direction, so that the rotating threaded sleeve can drive the telescopic pull rod to move along its axial direction, and then drive the connecting piece to pressurize the pipe wall, thereby achieving stable clamping of the pipe.

[0016] Preferably, the lifting assembly comprises a linear drive member and at least one cushion block, the cushion block is provided with a splicing structure for splicing a plurality of the cushion blocks, and the linear drive member is mounted on the cushion block.

[0017] By adopting the above technical solution, the output ends of the two groups of lifting assemblies can be adjusted to form a height difference by adjusting the extension length of the output end of the linear drive, which is used to clamp the pipe wall; the pad is used to further adjust the total length of the lifting assembly, so that the two groups of lifting assemblies can clamp the pipe with a height greater than the longest extension distance of the linear drive; the splicing structure splices multiple pads, and then installs the linear drive on the spliced ​​pads, which can further adjust the total length of the lifting assembly.

[0018] Preferably, the splicing structure includes a protrusion fixed to one side of the cushion block and an embedding groove opened on the other side of the cushion block, and the protrusion is plug-fitted into the embedding groove.

[0019] By adopting the above technical solution, the protrusion of one pad is inserted into the groove of another pad, so that the two pads can be quickly spliced ​​together, and they can still remain stable after splicing, so as to support the linear drive component.

[0020] Preferably, the splicing structure further includes a fixing bolt, which passes through the cushion block and then extends into the protruding portion spliced ​​with the cushion block.

[0021] By adopting the above technical solution, the fixing bolts can more stably fix the two spliced ​​pads to improve the stability of the pads supporting the linear drive component.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By utilizing the height difference between the output ends of the two sets of lifting assemblies, the pipe wall of the pipeline protruding from the turbine valve housing is clamped through the connecting piece and the output end of the lifting assembly at the lower position. By reducing the length of the telescopic pull rod on the connecting piece, the connecting piece presses down the pipe wall, and the pipe wall is pressed tightly against the output end of the lifting assembly at the lower position, so as to achieve abutment support for the pipeline protruding from the turbine valve housing, thereby enabling the turbine valve housing to be stably fixed on the bottom plate, facilitating the processing of the inner wall of the turbine valve body, and improving the work efficiency during processing;

[0024] 2. The guide groove and the through groove can be used to adjust the position of the telescopic rod relative to the pipeline, making the use of the tooling more flexible, so as to prevent the fixed telescopic rod from interfering with the inner wall processing of the turbine valve housing, and further improve the work efficiency of the inner wall processing of the turbine valve body;

[0025] 3. The telescopic rod is fixed to the connecting piece at the preset position of the through groove by the locking piece. On this basis, the threaded sleeve is rotated to move the telescopic rod toward the threaded sleeve, which can drive the connecting piece to pressurize the pipe wall and achieve stable clamping of the pipeline, so that the turbine valve casing can be stably fixed on the base plate, thereby improving the work efficiency when the inner wall of the turbine valve body is processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is an axonometric diagram of the overall structure of the steam turbine valve casing abutting support tooling, which is mainly reflected in the embodiment of the present application;

[0027] Figure 2 The embodiment of the present application mainly embodies the structural schematic diagram of the threaded sleeve and the telescopic pull rod in the turbine valve casing abutment support tooling.

[0028] Figure numerals: 1, base plate; 11, guide groove; 12, slider; 13, short column; 131, annular groove; 14, threaded sleeve; 141, annular protrusion; 2, lifting assembly; 21, linear drive member; 22, pad; 231, fixing bolt; 232, protrusion; 3, telescopic pull rod; 31, fixing nut; 4, connecting member; 41, through groove. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The present application embodiment discloses a steam turbine valve housing abutment support tool. Figure 1 The turbine valve housing abutment support tooling comprises a bottom plate 1 and two sets of lifting components 2 arranged on the bottom plate 1. The bottom plate 1 can be a round plate, a square plate or a rectangular plate, etc. In this embodiment, the bottom plate 1 is a round metal plate, which can stably support the turbine valve housing and facilitate the determination of the turbine valve housing at the center position of the bottom plate 1.

[0031] Two sets of lifting assemblies 2 are placed on the bottom plate 1 at intervals, and there is a height difference between the output ends of the two sets of lifting assemblies 2. The lifting assembly 2 with the output end at the lower position is placed below the pipe wall of the turbine valve casing pipeline, and the output end of the lower lifting assembly 2 is abutted against the outer wall of the curved surface of the pipeline to support the pipeline, and the pipeline is not located on the lifting track of the other set of lifting assemblies 2.

[0032] Further, see Figure 1, the output end of the lifting assembly 2 at the high position is provided with a connector 4. The connector 4 in this embodiment is a rectangular block, which is convenient for being stably placed on the end wall of the output end, and convenient for clamping the pipe wall of the pipe on the valve housing of the steam turbine. In other feasible embodiments, the lower end surface of the end of the connector 4 close to the pipe wall can also be an arc surface that fits the inner wall of the pipe, which can better cooperate with the low-position lifting assembly 2 to clamp and support the pipe.

[0033] The other end of the connecting piece 4 is overlapped on the inner wall of the pipe, and then the pipe is clamped and abutted and supported by the connecting piece 4 and the output end of the low-level lifting component 2. In order to enable the connecting piece 4 to press the pipe wall against the output end of the low-level lifting component 2, a telescopic pull rod 3 is also provided on the connecting piece 4 for driving the connecting piece 4 to press against the pipe wall.

[0034] Combination Figure 1 and Figure 2 The connecting member 4 is provided with a through slot 41 along its length direction, and the telescopic pull rod 3 passes through the connecting member 4 from the through slot 41 and is fixed to the bottom plate 1. Specifically, the bottom plate 1 is provided with a plurality of T-shaped guide slots 11 along its radial direction, and the guide slots 11 penetrate the arc side wall of the bottom plate 1.

[0035] It should be noted that in other feasible embodiments, if the base plate 1 is a square plate or a rectangular plate, the extension direction of the guide groove 11 can be from the outside of the base plate 1 to the center of the base plate 1, for example, multiple guide grooves 11 are opened along the diagonal direction of the base plate 1.

[0036] The bottom plate 1 is slidably connected with a T-shaped slider 12 in the guide groove 11, and the slider 12 partially extends out of the guide groove 11. Figure 2 As shown, a short column 13 is fixedly connected to the top of the slider 12, and the axial direction of the short column 13 is perpendicular to the surface direction of the bottom plate 1. Furthermore, a threaded sleeve 14 is rotatably connected to the end of the short column 13 away from the slider 12, and an annular groove 131 is provided on the arc surface outer wall of the short column 13 near the end of the threaded sleeve 14, and an annular protrusion 141 that fits with the annular groove 131 is integrally formed on the arc surface inner wall of the threaded sleeve 14 near the end of the short column 13, and then the threaded sleeve 14 is rotatably connected to the short column 13 around its axial direction through the cooperation between the annular protrusion 141 and the annular groove 131.

[0037] Furthermore, one end of the telescopic rod 3 close to the threaded sleeve 14 is threadedly connected to the threaded sleeve 14, and on this basis, the telescopic rod 3 can be driven to rise and fall vertically by rotating the threaded sleeve 14. In order to facilitate the rotation of the threaded sleeve 14, the outer wall section of the threaded sleeve 14 in this embodiment is hexagonal.

[0038] At this time, if the end of the telescopic rod 3 away from the threaded sleeve 14 is fixed to the connector 4, and the threaded sleeve 14 is rotated to drive the telescopic rod 3 to move toward the threaded sleeve 14, the connector 4 can be driven to press the pipe wall down to the output end of the low-position lifting assembly 2 to achieve abutment support for the pipe. Therefore, a locking member for fixing the telescopic rod 3 thereon is also provided on the connector 4.

[0039] Replay Figure 1 , the outer wall of the arc surface of the end of the telescopic rod 3 close to the connecting piece 4 is also engraved with threads, and the locking piece is a fixing nut 31. In this embodiment, the fixing nut 31 is used in conjunction with two nut washers. First, the two nut washers are sleeved on the telescopic rod 3 from the end of the telescopic rod 3 close to the connecting piece 4, and then the fixing nut 31 is rotated to move the fixing nut 31 toward the connecting piece 4, and the two nut washers are pressed against the connecting piece 4, and then the end of the telescopic rod 3 close to the connecting piece 4 is fixed on the connecting piece 4 at a suitable position in the through groove 41.

[0040] On this basis, rotating the threaded sleeve 14 can drive the telescopic rod 3 to move toward the threaded sleeve 14, and the telescopic rod 3 drives the connecting part 4 to move toward the threaded sleeve 14, that is, the connecting part 4 presses down against the pipeline of the turbine valve housing, and cooperates with the low-level lifting assembly 2 to support the turbine valve housing.

[0041] Since the heights of the pipelines protruding from different steam turbine valve casings are different, in order to enable the lifting assembly 2 to support pipelines of different heights, the lifting assembly 2 includes a linear drive member 21 and at least one cushion block 22 .

[0042] The linear drive member 21 may be a cylinder, an electric cylinder or an electric push rod, etc. The cushion block 22 may be a cylindrical block, a square block or a rectangular block, etc. In this embodiment, the linear drive member 21 is an electric push rod, and the cushion block 22 is a cylindrical block.

[0043] First place the pad 22 on the base plate 1, and then place the linear drive member 21 on the pad 22. The height of the output end of the lifting assembly 2 can be adjusted by changing the number of pads 22 under the linear drive member 21. Therefore, a splicing structure for splicing multiple pads 22 is provided on the pad 22.

[0044] In this embodiment, the splicing structure includes a cylindrical protrusion 232 fixedly connected to one end of the pad 22, and the other end of the pad 22 is provided with a groove adapted to be plugged into the protrusion 232. The protrusion 232 of the pad 22 is plugged into the groove of the adjacent pad 22 to achieve splicing of the pads 22.

[0045] Optionally, when the cushion block 22 is a square block, the protrusion 232 may be correspondingly square, and the protrusion 232 and the embedding groove are not located on the same side of the cushion block 22 .

[0046] Further, such as Figure 1 As shown, the splicing structure also includes a fixing bolt 231, which passes through the pad 22 and is threadedly connected to the protrusion 232 of the pad 22 spliced ​​therewith, fixing the two adjacent pads 22, thereby improving the stability of the support for the linear drive member 21.

[0047] The implementation principle of a turbine valve casing abutment support tooling in an embodiment of the present application is: adjusting the number of pads 22 and the extended length of the linear drive member 21 to achieve a height difference between the output ends of the two groups of lifting assemblies 2, clamping the pipe wall protruding from the turbine valve casing through the connecting member 4 and the output end of the low-position lifting assembly 2, rotating the threaded sleeve 14 to reduce the length of the telescopic pull rod 3 on the connecting member 4, so that the connecting member 4 presses down on the pipe wall, and presses the pipe wall tightly against the output end of the low-position lifting assembly 2, thereby achieving abutment support for the pipe protruding from the turbine valve casing, and thereby enabling the turbine valve casing to be stably fixed on the base plate 1, facilitating the inner wall processing of the turbine valve body, and improving the work efficiency during processing.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steam turbine valve casing abutment support tool, characterized in that: The invention comprises a base plate (1) and two groups of lifting assemblies (2) arranged on the base plate (1), wherein there is a height difference between the output ends of the two groups of lifting assemblies (2); a connecting member (4), wherein one end of the connecting member (4) is arranged on the output end located at a high position and the other end is arranged on the lifting path of the output end located at a low position and is spaced from the output end located at a low position; and a telescopic pull rod (3), wherein one end of the telescopic pull rod (3) is arranged on the connecting member (4) and the other end is arranged on the base plate (1).

2. A steam turbine valve casing abutment support fixture according to claim 1, characterized in that: At least one guide groove (11) is provided at the top end of the base plate (1), and the guide groove (11) extends from the edge of the base plate (1) to the center of the base plate (1); the connecting member (4) is provided with a through groove (41) along its length direction, and one end of the telescopic pull rod (3) slides in the guide groove (11) and the other end slides in the through groove (41).

3. A steam turbine valve casing abutment support fixture according to claim 2, characterized in that: The base plate (1) is slidably connected with a slider (12) in the guide groove (11); the slider (12) is connected with a threaded sleeve (14) which rotates axially around the telescopic rod (3); the end of the threaded sleeve (14) away from the slider (12) is threadedly connected to the telescopic rod (3); and the end of the telescopic rod (3) close to the connecting piece (4) is provided with a locking piece for fixing the telescopic rod (3) to the connecting piece (4).

4. A steam turbine valve casing abutment support fixture according to claim 3, characterized in that: The arcuate outer wall of the telescopic rod (3) close to one end of the connecting piece (4) is provided with a thread, and the locking piece is a fixing nut (31) threadedly connected to one end of the telescopic rod (3) close to the connecting piece (4).

5. The steam turbine valve casing abutment support fixture according to claim 3, characterized in that: A short column (13) is fixedly connected to one end of the slider (12) close to the threaded sleeve (14); an annular groove (131) is provided on the arcuate outer wall of the short column (13); an annular protrusion (141) adapted to the annular groove (131) is fixedly connected to one end of the threaded sleeve (14) close to the short column (13); the annular protrusion (141) is rotatably connected to the annular groove (131).

6. A steam turbine valve casing abutment support fixture according to any one of claims 1 to 5, characterized in that: The lifting assembly (2) comprises a linear drive component (21) and at least one cushion block (22); the cushion block (22) is provided with a splicing structure for splicing a plurality of the cushion blocks (22); and the linear drive component (21) is mounted on the cushion block (22).

7. The steam turbine valve casing abutment support fixture according to claim 6, characterized in that: The splicing structure comprises a protruding portion (232) fixedly connected to one side of the cushion block (22) and an embedding groove opened on the other side of the cushion block (22), and the protruding portion (232) is plug-fitted into the embedding groove.

8. The turbine valve casing abutment support fixture according to claim 7, characterized in that: The splicing structure further comprises a fixing bolt (231), wherein the fixing bolt (231) passes through the cushion block (22) and then extends into the protruding portion (232) spliced ​​with the cushion block (22).

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