Rotary machinery support conversion device

Abstract

The invention relates to a support conversion device, in particular to a rotary machine support conversion device, and aims to solve the problems that the continuity of a test needs to be broken, shutdown is repeated, the installation period is long and the test efficiency is low due to the fact that vibration operation of machine legs of a steam turbine converts elastic support of a load system into rigidity. The lower wedge-shaped sliding block is placed on the adjusting gasket, the inclined face of the upper wedge-shaped block and the inclined face of the lower wedge-shaped sliding block are oppositely arranged in a matched mode, the vertical guide column set is fixedly installed on the upper wedge-shaped block, the transverse guide column is horizontally inserted into the transverse guide column, and the transverse guide column and the vertical guide column set are arranged in a matched mode. The transverse guide column drives the vertical guide column set to ascend and descend on the lower wedge-shaped sliding block. The invention belongs to the field of turbines.

Description

Technical Field

[0001] The invention relates to a support conversion device, in particular to a rotating machinery support conversion device, and belongs to the field of steam turbines. Background Art

[0002] Large-scale multi-operating condition steam turbines are different from power station steam turbines. They have more operating points and variable operating conditions are normalized. Therefore, during factory tests, multiple operating conditions need to be set as assessment points, especially the vibration of the turbine feet, which is an important assessment indicator. According to previous test results, the vibration of the test load system will increase under a certain operating condition, and will be transmitted to the turbine feet through the supporting platform below, and will be mixed with the test signal of the turbine body vibration, which is difficult to separate, thus affecting the vibration test results of the turbine body under the corresponding operating conditions.

[0003] The traditional solution is to install a vibration isolator under the load system to isolate the vibration, which can effectively eliminate the above influence. However, in order to ensure that the unit can operate safely and stably under high working conditions, the elastic support of the load system needs to be converted to rigid. However, to carry out the above work, the continuity of the test needs to be interrupted. After shutdown, the load system must be removed, the vibration isolator must be removed, the rigid gasket must be replaced, and the load system must be reinstalled and re-centered before other working condition tests can be carried out. This method requires repeated shutdowns, a long installation cycle, and low test efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the vibration operation of the turbine foot converts the elastic support of the load system into rigidity, which requires interruption of test continuity, repeated shutdowns, long installation cycles and low test efficiency, and further provide a rotating machinery support conversion device.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] A rotary mechanical support conversion device comprises an upper wedge block, a vertical guide column group, a lower wedge slider, a transverse guide column and an adjustment gasket;

[0007] The upper wedge block is arranged above the lower wedge slider, and the lower wedge slider is placed on the adjusting gasket. The inclined surface of the upper wedge block and the inclined surface of the lower wedge slider are relatively matched. The vertical guide column group is fixedly installed on the upper wedge block, and the transverse guide column is horizontally inserted on the transverse guide column. The transverse guide column and the vertical guide column group are matched. The transverse guide column drives the vertical guide column group to move up and down on the lower wedge slider.

[0008] Furthermore, the vertical guide column group includes two vertical guide columns, gears are processed on the outer circumferential surfaces of the vertical guide columns, gears are processed on the outer circumferential surfaces of the transverse guide columns, and the gears of the transverse guide columns are meshed with the gears on the vertical guide columns.

[0009] Furthermore, the bottom end of the upper wedge block is an inclined surface, and the lower end surface of the upper wedge block is processed with a guide column mounting blind hole, and two vertical guide columns are fixedly installed in the guide column mounting blind holes of the upper wedge block. The top end of the lower wedge slider is an inclined surface, and two strip-shaped through holes are vertically processed on the lower wedge slider, and each vertical guide column of the upper wedge block is respectively arranged in a strip through hole.

[0010] Furthermore, a through hole is processed on the lower wedge-shaped slider in the horizontal direction, and the transverse guide column is inserted into the through hole of the lower wedge-shaped slider.

[0011] Furthermore, it also includes a handle, which is arranged on one end of the transverse guide column.

[0012] Furthermore, it also includes four anchor bolts and four anchor nuts. The four anchor bolts are inserted into the adjusting gasket and the lower wedge-shaped slider, and four anchor bolt strip holes are processed on them. The four anchor bolt strip holes on the adjusting gasket are arranged correspondingly to the four anchor bolt strip holes on the upper wedge block. The upper wedge block and the adjusting gasket are processed with four anchor bolt strip holes. The top end of each anchor bolt passes through the anchor bolt strip hole of the upper wedge block and is threadedly connected to the anchor nut.

[0013] Furthermore, it also includes two screws, and the top end of each vertical guide column is fixed to the upper wedge block through a screw detachable connection.

[0014] Furthermore, it also includes a transverse stop nut and two vertical guide column nuts. The transverse stop nut is threadedly installed on the transverse guide column, and the vertical guide column nut is threadedly installed on the bottom end of the vertical guide column.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention cooperates the gears of the transverse guide column 6 with the gears of the two vertical guide columns, and drives the upper wedge block 1 to move forward and backward on the lower wedge slide block 3 by rotating the transverse guide column 6 to drive the two vertical guide columns to rise or fall, so that the load system can quickly switch between elastic support and rigid support when the steam turbine is tested under multiple working conditions. This avoids the problems of repeated shutdowns and difficulty in disassembly and assembly when the load system support mode is switched between elasticity and rigidity when large steam turbines are tested under multiple working conditions, greatly shortens the test cycle, improves the test efficiency, and ensures the operation safety of the unit and the accuracy of the vibration test results.

[0017] 2. This application can realize the free switching of the elasticity and rigidity of the support system without repeatedly disassembling and assembling the load system, thereby ensuring the test cycle, saving test costs, reducing test workload, and greatly improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic top view of the overall structure of the present invention. DETAILED DESCRIPTION

[0020] Specific implementation method 1: Combination Figure 1-Figure 2 The present embodiment is described as a rotating mechanical support conversion device, which comprises an upper wedge block 1, a vertical guide column group 2, a lower wedge slider 3, a transverse guide column 6 and an adjustment gasket 10;

[0021] The upper wedge block 1 is arranged above the lower wedge slider 3, and the lower wedge slider 3 is placed on the adjusting gasket 10. The inclined surface of the upper wedge block 1 and the inclined surface of the lower wedge slider 3 are relatively matched. The vertical guide column group 2 is fixedly installed on the upper wedge block 1, and the transverse guide column 6 is horizontally inserted on the transverse guide column 6. The transverse guide column 6 is matched with the vertical guide column group 2, and the transverse guide column 6 drives the vertical guide column group 2 to move up and down on the lower wedge slider 3.

[0022] In this embodiment, the whole is placed on the mounting base, and the two guide columns of the vertical guide column group 2 are inserted into the corresponding holes on the mounting base, and then the vibration isolator and the load system equipment are installed normally.

[0023] Specific implementation method 2: Combination Figure 1-Figure 2 This embodiment is described. In this embodiment, a rotating mechanical support conversion device is described. The vertical guide column group 2 includes two vertical guide columns. Gears are processed on the outer circumference of the vertical guide columns. Gears are processed on the outer circumference of the transverse guide column 6. The gears of the transverse guide column 6 are meshed with the gears on the vertical guide column. Other methods are the same as those in the first embodiment.

[0024] The gears of the transverse guide column 6 mesh with the gears of the two vertical guide columns to drive the two vertical guide columns to rise or fall.

[0025] Specific implementation method three: Combination Figure 1-Figure 2 This embodiment is described. This embodiment describes a rotating mechanical support conversion device. The bottom end of the upper wedge block 1 is an inclined surface. The lower end surface of the upper wedge block 1 is processed with a guide column installation blind hole. Two vertical guide columns are fixedly installed in the guide column installation blind hole of the upper wedge block 1. The top end of the lower wedge slider 3 is an inclined surface. Two strip-shaped through holes are vertically processed on the lower wedge slider 3. Each vertical guide column of the upper wedge block 1 is respectively set in a strip-shaped through hole. Other methods are the same as the specific embodiment 1.

[0026] Specific implementation method four: Combination Figure 1-Figure 2 This embodiment is described as a rotary mechanical support conversion device, in which a through hole is processed in the horizontal direction on the lower wedge-shaped slider 3, and the transverse guide column 6 is inserted into the through hole of the lower wedge-shaped slider 3. Other methods are the same as those in the first embodiment.

[0027] Specific implementation method five: Combination Figure 1-Figure 2 This embodiment is described below. The rotary mechanical support conversion device described in this embodiment further includes a handle 7, which is arranged on one end of the transverse guide column 6. Other methods are the same as those of the second, third or fourth embodiment.

[0028] Specific implementation method six: Combination Figure 1-Figure 2 This embodiment is described. This embodiment is a rotating mechanical support conversion device, which also includes four anchor bolts 4 and four anchor nuts 5. The four anchor bolts 4 are inserted on the adjustment gasket 10 and the lower wedge-shaped slider 3, and four anchor bolt strip holes are processed on the upper wedge block 1. The four anchor bolt strip holes on the adjustment gasket 10 are arranged correspondingly to the four anchor bolt strip holes on the upper wedge block 1. The upper wedge block 1 and the adjustment gasket 10 are processed with four anchor bolt strip holes. The top end of each anchor bolt 4 passes through the anchor bolt strip hole of the upper wedge block 1 and is threadedly connected with the anchor nut 5. Other methods are the same as those of the fourth embodiment.

[0029] Specific implementation method seven: Combination Figure 1-Figure 2 This embodiment describes a rotating mechanical support conversion device, which further includes two screws 9, and the top end of each vertical guide column is detachably connected and fixed to the upper wedge block 1 by the screws 9. Other methods are the same as those of the second embodiment.

[0030] Specific implementation method eight: Combination Figure 1-Figure 2 This embodiment is described. The rotary mechanical support conversion device described in this embodiment also includes a transverse stop nut 11 and two vertical guide column nuts 8. The transverse stop nut 11 is threadedly connected and installed on the transverse guide column 6, and the vertical guide column nut 8 is threadedly connected and installed on the bottom end of the vertical guide column. Other methods are the same as those in the first embodiment.

[0031] How it works

[0032] When the steam turbine unit is running at high operating conditions, the load system needs to be changed from elastic support to rigid support. Anchor bolts and nuts are installed at the equipment feet. At this time, the anchor nuts and vertical guide column nuts are in a loose state. Then turn the wrench of this device to drive the transverse guide column to rotate. The rotation of the transverse guide column will push the lower wedge-shaped slider forward. There is a gear meshing between the transverse guide column and the vertical guide column. When the transverse guide column moves forward, it will drive the vertical guide column to rise upward, so that the vertical guide column drives the upper wedge block to lift upward. When it reaches the appropriate position, this device replaces the vibration isolator to support the load system. At this time, the load system has been transferred to rigid support. Finally, tighten the nuts to keep the support state stable. The inclined angle of the lower wedge-shaped slider is θ, and the maximum moving distance is L. The upper wedge block can be lifted up to a height of H = L×tanθ, so that the maximum adjustment height range of the invention adjustment device is L×tanθ. This device completes the replacement of the vibration isolator, and the load system has been transferred to rigid support.

[0033] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. A rotating mechanical support conversion device, characterized in that: It comprises an upper wedge block (1), a vertical guide column group (2), a lower wedge slider (3), a transverse guide column (6) and an adjustment gasket (10); The upper wedge block (1) is arranged above the lower wedge slider (3), the lower wedge slider (3) is placed on the adjustment pad (10), the inclined surface of the upper wedge block (1) and the inclined surface of the lower wedge slider (3) are arranged in a relatively matched manner, the vertical guide column group (2) is fixedly installed on the upper wedge block (1), the transverse guide column (6) is horizontally inserted on the transverse guide column (6), and the transverse guide column (6) is arranged in a matched manner with the vertical guide column group (2), and the transverse guide column (6) drives the vertical guide column group (2) to move up and down on the lower wedge slider (3).

2. According to claim 1, a rotating mechanical support conversion device is characterized in that: The vertical guide column group (2) comprises two vertical guide columns, the outer circumferential surfaces of the vertical guide columns are processed with gears, the outer circumferential surfaces of the transverse guide columns (6) are processed with gears, and the gears of the transverse guide columns (6) are meshed with the gears on the vertical guide columns.

3. According to claim 2, a rotating mechanical support conversion device is characterized in that: The bottom end of the upper wedge block (1) is an inclined surface, and the lower end surface of the upper wedge block (1) is processed with a guide post installation blind hole, and two vertical guide posts are fixedly installed in the guide post installation blind holes of the upper wedge block (1). The top end of the lower wedge slider (3) is an inclined surface, and two strip-shaped through holes are vertically processed on the lower wedge slider (3), and each vertical guide post of the upper wedge block (1) is respectively arranged in one of the strip-shaped through holes.

4. A rotating mechanical support conversion device according to claim 2, characterized in that: A through hole is processed on the lower wedge-shaped slider (3) in the horizontal direction, and a transverse guide column (6) is inserted into the through hole of the lower wedge-shaped slider (3).

5. A rotating mechanical support conversion device according to claim 4, characterized in that: It also includes a handle (7) which is arranged on one end of the transverse guide column (6).

6. The rotating mechanical support conversion device according to claim 1, characterized in that: It also includes four anchor bolts (4) and four anchor nuts (5). The four anchor bolts (4) are inserted into the adjusting gasket (10) and the lower wedge-shaped slider (3), and four anchor bolt strip holes are processed on the upper part. The four anchor bolt strip holes on the adjusting gasket (10) are arranged correspondingly to the four anchor bolt strip holes on the upper wedge-shaped block (1). The upper wedge-shaped block (1) and the adjusting gasket (10) are processed with four anchor bolt strip holes. The top end of each anchor bolt (4) passes through the anchor bolt strip hole of the upper wedge-shaped block (1) and is threadedly connected to the anchor nut (5).

7. The rotating mechanical support conversion device according to claim 1, characterized in that: It also includes two screws (9), and the top end of each vertical guide column is detachably connected and fixed to the upper wedge block (1) through the screws (9).

8. The rotary mechanical support conversion device according to claim 1, characterized in that: It also comprises a transverse stop nut (11) and two vertical guide column nuts (8), wherein the transverse stop nut (11) is threadedly connected and installed on the transverse guide column (6), and the vertical guide column nut (8) is threadedly connected and installed on the bottom end of the vertical guide column.

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