Tool for measuring installation size of high-pressure rotor of steam turbine

Abstract

The utility model relates to the technical field of high-pressure rotor assembly, and provides a steam turbine high-pressure rotor installation dimension measuring tool which comprises two placing plates which are symmetrically arranged, one of the two placing plates is provided with a dimension measuring assembly, and the other of the two placing plates is provided with a positioning assembly. The size measuring assembly comprises a shaft adjusting mechanism, a rotating mechanism, a moving mechanism, an electric telescopic rod and a ball head measuring instrument. The electric hydraulic cylinder is started to push the fixing frame to ascend and descend, the fixing frame is linked to slide on the straight sliding rail, the laser transmitter is started, and when light is aligned with the axis of the steam turbine high-pressure rotor body, the electric hydraulic cylinder stops working, so that the purpose of shaft adjustment is achieved, and the measurement accuracy is effectively improved; the second motor is started to drive the screw rod to rotate in the sliding groove, the I-shaped sliding block is in linkage to slide in the sliding groove, the ball head measuring instrument is moved and adjusted, the steam turbine high-pressure rotor body is effectively and comprehensively measured, and therefore the measuring efficiency of the steam turbine high-pressure rotor body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-pressure rotor assembly, and particularly relates to a measuring tool for the installation dimensions of a steam turbine high-pressure rotor. Background Art

[0002] A prototype machine refers to the first batch of machines manufactured according to the design drawings during the development of a new machine for testing or for mass production prototypes. Commonly, for example, in the mass production of aircraft, it is necessary to produce, assemble and test the prototype machine according to the design drawings. After the prototype machine is assembled, the parts of the aircraft are mass-produced accurately according to the format of the prototype machine.

[0003] It is known that the Chinese publicly authorized utility model: (Publication No.: CN215413655U) discloses a measuring tool for the installation dimensions of a high-pressure rotor of a prototype machine, which includes a base. A placing table is provided at the center of the top of the base. An irregular-shaped groove is provided on the top of the placing table. A rotor cover is installed inside the irregular-shaped groove. Two groups of telescopic oil cylinders are provided on the top of the base on both sides of the placing table. A first annular plate is installed on the outer side wall on the left side of the rotor cover. A first sliding groove is provided inside the first annular plate. A first support rod is installed inside the first sliding groove through a ball. A first cross bar is connected to the side wall of the first support rod. A first installation hole is provided inside the first cross bar. A first ball head measuring instrument is installed inside the first installation hole. This measuring tool for the installation dimensions of a high-pressure rotor of a prototype machine has a reasonable structural design and a low manufacturing cost. It can effectively measure the matching of the central axis dimensions of the rotor and the rotor cover during the installation of the high-pressure rotor of the prototype machine, improve the installation accuracy of the high-pressure rotor of the prototype machine, and ensure the qualification rate of the prototype machine.

[0004] However, in the implementation of the related technology, it is found that the above-mentioned electric heating pot has the following problems: it is difficult to perform shaft alignment detection on the steam turbine high-pressure rotor, resulting in poor measurement accuracy; it is not convenient to move and adjust the ball head measuring instrument, resulting in difficulty in comprehensively measuring the steam turbine high-pressure rotor body, reducing the detection efficiency; and it is difficult to adjust and place according to the steam turbine high-pressure rotor bodies of different lengths, thereby reducing the firmness of the placement of the steam turbine high-pressure rotor body. Therefore, a measuring tool for the installation dimensions of a steam turbine high-pressure rotor is proposed. Summary of the Utility Model

[0005] The utility model provides a measuring tool for the installation dimensions of a steam turbine high-pressure rotor, which solves the problems in the related technology that it is difficult to perform shaft alignment detection on the steam turbine high-pressure rotor, resulting in poor measurement accuracy; it is not convenient to move and adjust the ball head measuring instrument, resulting in difficulty in comprehensively measuring the steam turbine high-pressure rotor body, reducing the detection efficiency; and it is difficult to adjust and place according to the steam turbine high-pressure rotor bodies of different lengths, thereby reducing the firmness of the placement of the steam turbine high-pressure rotor body.

[0006] The technical solution of the utility model is as follows: A measurement tool for the installation dimensions of a high-pressure rotor of a steam turbine, including two symmetrically arranged placing plates, and placing grooves are opened at the tops of the placing plates. The high-pressure rotor body of the steam turbine is jointly placed on the tops of the two placing plates through the placing grooves. A dimension measurement component is arranged on one of the two placing plates. The dimension measurement component includes a shaft alignment mechanism, a rotation mechanism, a moving mechanism, an electric telescopic rod and a ball head measuring instrument. An adjustment mechanism is jointly arranged at the bottoms of the two placing plates, and a straight ruler is fixedly installed at the top of the adjustment mechanism.

[0007] Preferably, the shaft alignment mechanism includes a straight slide rail and a fixed plate that are relatively fixedly installed on one of the two placing plates. The fixed plate is located below the straight slide rail. An electric hydraulic cylinder is fixedly installed at the top of the fixed plate. The output end of the electric hydraulic cylinder is fixedly connected with a fixed frame, and the fixed frame is slidably clamped between the straight slide rail.

[0008] A laser emitter is fixedly installed through one side of the fixed frame.

[0009] Preferably, the rotation mechanism includes a fixed box fixedly installed on the top of the fixed frame, a motor one fixedly installed on the inner bottom wall of the fixed box, a circular sliding plate fixedly installed on the top of the fixed box, the output end of the motor one movably penetrates through the axis of the circular sliding plate and is fixedly connected with a fixed plate, and a plurality of sliding columns are slidably connected in a circular array inside the circular sliding plate. The tops of the plurality of sliding columns are jointly fixedly connected with the bottom end of the fixed plate.

[0010] Preferably, the moving mechanism includes a long plate fixedly installed on the top of the fixed plate, a chute penetratingly opened at the top of the long plate, a screw rod rotatably connected inside the chute, an I-shaped slider slidably clamped inside the chute, the I-shaped slider is threadedly penetrated with the screw rod, and a motor two is fixedly installed on one side of the long plate. The output end of the motor two movably extends into the chute and is fixedly connected with one end of the screw rod.

[0011] Preferably, the electric telescopic rod is fixedly installed at the bottom of the I-shaped slider, and the ball head measuring instrument is fixedly connected to the output end of the electric telescopic rod.

[0012] Preferably, the adjustment mechanism includes a base plate placed flat on the ground, a slide plate and two T-shaped slide rails fixedly mounted on the top of the adjustment mechanism, the two T-shaped slide rails are located on both sides of the slide plate, and two E-shaped slides are connected on the two T-shaped slide rails and slide relative to each other in the interior of the slide plate. The tops of the two E-shaped slides are fixedly connected to the bottoms of the two placement plates, and the interior of the slide plate is rotatably connected with a bidirectional screw rod, and a thread penetrates between the bidirectional screw rod and the two E-shaped slides. Motor three is fixedly installed on one side of the slide plate, and the output end of motor three extends to the interior of motor three and is fixedly connected to one end of the bidirectional screw rod.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] 1. During inspection, the electric hydraulic cylinder is started to push the fixed frame upward, and the fixed frame is linked to slide on the straight slide rail. The laser transmitter is turned on. When the light is aligned with the axis of the turbine high-pressure rotor body, the electric hydraulic cylinder is stopped to achieve the purpose of axis adjustment, which effectively improves the measurement accuracy. By starting the second motor to drive the screw to rotate inside the slide groove, the I-shaped slider is linked to slide inside the slide groove to move and adjust the ball head measuring instrument, effectively performing a comprehensive measurement of the turbine high-pressure rotor body. By starting the electric telescopic rod to drive the ball head measuring instrument to move up and down, the irregularities of the turbine high-pressure rotor body can be effectively measured up and down, thereby improving the measurement efficiency of the turbine high-pressure rotor body.

[0015] 2. The two-way screw is driven by the motor to rotate inside the slide plate, and the two E-shaped slide plates are linked to slide on the T-shaped slide rail and inside the slide plate to adjust the distance between the placement plates. It is used to adjust the placement according to the high-pressure rotor body of the steam turbine of different lengths, effectively improving the firmness of the placement of the high-pressure rotor body of the steam turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0018] Figure 2 This is a side view schematic diagram of the three-dimensional structure proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the base plate proposed in the present invention.

[0020] In the figure: 1. Placing board; 2. Adjusting machine; 21. Bottom plate; 22. Chute plate; 23. T-shaped slide rail; 24. Bidirectional lead screw; 25. E-shaped slide plate; 26. Motor III; 3. Straight ruler; 4. High-pressure rotor body of steam turbine; 5. Dimension measuring assembly; 51. Axis adjusting mechanism; 511. Straight slide rail; 512. Fixed plate; 513. Electric hydraulic cylinder; 514. Fixed bracket; 515. Laser emitter; 52. Rotating mechanism; 521. Fixed box; 522. Motor I; 523. Circular sliding disc; 524. Slide column; 525. Fixed disc; 53. Moving mechanism; 531. Long board; 532. Chute; 533. Screw; 534. Motor II; 535. I-shaped slider; 54. Electric telescopic rod; 55. Ball head measuring instrument. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figure 1 - Figure 3, a measuring tool for the installation dimensions of a high-pressure rotor of a steam turbine, including two symmetrically arranged placing plates 1. A placing groove is opened at the top of the placing plate 1. The steam turbine high-pressure rotor body 4 is jointly placed on the tops of the two placing plates 1 through the placing grooves. A dimension measuring assembly 5 is arranged on one of the two placing plates 1. The dimension measuring assembly 5 includes an axis adjusting mechanism 51, a rotating mechanism 52, a moving mechanism 53, an electric telescopic rod 54 and a ball head measuring instrument 55. The axis adjusting mechanism 51 includes a straight slide rail 511 and a fixing plate 512 that are relatively fixedly installed on one of the two placing plates 1. The fixing plate 512 is located below the straight slide rail 511. An electric hydraulic cylinder 513 is fixedly installed at the top of the fixing plate 512. The output end of the electric hydraulic cylinder 513 is fixedly connected with a fixing frame 514. The fixing frame 514 is slidably clamped between the straight slide rail 511. A laser emitter 515 is fixedly installed through one side of the fixing frame 514. The rotating mechanism 52 includes a fixing box 521 fixedly installed on the top of the fixing frame 514, a motor one 522 fixedly installed on the inner bottom wall of the fixing box 521, a circular sliding plate 523 fixedly installed on the top of the fixing box 521. The output end of the motor one 522 movably penetrates through the axis of the circular sliding plate 523 and is fixedly connected with a fixing plate 525. A plurality of sliding columns 524 are slidably connected in a circular array inside the circular sliding plate 523. The tops of the plurality of sliding columns 524 are jointly fixedly connected with the bottom end of the fixing plate 525. The moving mechanism 53 includes a long plate 531 fixedly installed on the top of the fixing plate 525, a chute 532 penetratingly opened at the top of the long plate 531, a screw rod 533 rotatably connected inside the chute 532, an I-shaped slider 535 slidably clamped inside the chute 532. The I-shaped slider 535 is threadedly penetrated with the screw rod 533. A motor two 534 is fixedly installed on one side of the long plate 531. The output end of the motor two 534 movably extends into the chute 532 and is fixedly connected with one end of the screw rod 533. The electric telescopic rod 54 is fixedly installed at the bottom of the I-shaped slider 535. The ball head measuring instrument 55 is fixedly connected to the output end of the electric telescopic rod 54.

[0024] The technical solution provided in this embodiment is as follows: During measurement, by starting the electric hydraulic cylinder 513, the electric hydraulic cylinder 513 pushes the fixing frame 514 to move up and down, driving the fixing frame 514 to slide on the straight slide rail 511. Open the laser emitter 515. By observing the light of the laser emitter 515, when the light is aligned with the axis of the steam turbine high-pressure rotor body 4, stop the electric hydraulic cylinder 513 from working, thereby achieving the purpose of axis adjustment and effectively improving the accuracy of the detection of the steam turbine high-pressure rotor body 4;

[0025] By starting the motor two 534, the motor two 534 drives the screw rod 533 to rotate inside the chute 532, driving the I-shaped slider 535 to slide inside the chute 532, for moving and adjusting the ball head measuring instrument 55, and effectively measuring the steam turbine high-pressure rotor body 4 comprehensively;

[0026] By starting the electric telescopic rod 54, the electric telescopic rod 54 drives the ball head measuring instrument 55 to move up and down, effectively measuring the irregularities of the steam turbine high-pressure rotor body 4, thereby improving the detection efficiency of the steam turbine high-pressure rotor body 4;

[0027] By starting motor 1 522, motor 1 522 drives the fixed plate 525 to rotate, and the linkage sliding column 524 slides inside the circular sliding plate 523, which effectively improves the rotation stability of the long plate 531. By rotating and adjusting the long plate 531, the high-pressure rotor body 4 of the turbine can be placed on the placement plate 1 without obstruction.

[0028] Embodiment 2

[0029] Based on Example 1, in this embodiment: an adjustment mechanism 2 is commonly provided at the bottom of the two placement plates 1, a ruler 3 is fixedly installed on the top of the adjustment mechanism 2, the adjustment mechanism 2 includes a base plate 21 placed flat on the ground, a slide plate 22 and two T-shaped slide rails 23 fixedly installed on the top of the adjustment mechanism 2, the two T-shaped slide rails 23 are located on both sides of the slide plate 22, and two E-shaped slides 25 are connected on the two T-shaped slide rails 23 to slide relative to each other in the interior of the slide plate 22, the tops of the two E-shaped slides 25 are fixedly connected to the bottoms of the two placement plates 1, the interior of the slide plate 22 is rotatably connected with a bidirectional screw rod 24, and a thread passes through the bidirectional screw rod 24 and the two E-shaped slides 25, and a motor three 26 is fixedly installed on one side of the slide plate 22, and the output end of the motor three 26 extends to the interior of the motor three 26 and is fixedly connected to one end of the bidirectional screw rod 24.

[0030] The technical solution provided by this embodiment is as follows: by starting the third motor 26, the third motor 26 drives the bidirectional screw 24 to rotate inside the slide plate 22, and the two E-shaped slide plates 25 are linked to slide on the T-shaped slide rail 23 and inside the slide plate 22, so as to adjust the distance between the placement plates 1 by sliding, so as to facilitate the adjustment and placement of the high-pressure rotor body 4 of the steam turbine according to different lengths;

[0031] The ruler 3 is used to measure the length of the high-pressure rotor body 4 of the steam turbine.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A measuring tool for the installation dimensions of a high-pressure rotor of a steam turbine, characterized in that, It includes two symmetrically arranged placing plates (1), and placing grooves are formed at the tops of the placing plates (1); The steam turbine high-pressure rotor body (4) is jointly placed on the tops of the two placing plates (1) through the placing grooves; A dimension measuring assembly (5) is arranged on one of the two placing plates (1), and the dimension measuring assembly (5) includes an axis adjusting mechanism (51), a rotating mechanism (52), a moving mechanism (53), an electric telescopic rod (54) and a ball head measuring instrument (55); An adjusting mechanism (2) is jointly arranged at the bottoms of the two placing plates (1), and a straight ruler (3) is fixedly installed at the top of the adjusting mechanism (2).

2. The measurement tooling for installation dimensions of a high-pressure rotor of a steam turbine according to claim 1, wherein: The axis adjusting mechanism (51) includes a straight slide rail (511) and a fixing plate (512) which are relatively fixedly installed on one of the two placing plates (1), and the fixing plate (512) is located below the straight slide rail (511); An electric hydraulic cylinder (513) is fixedly installed at the top of the fixing plate (512), the output end of the electric hydraulic cylinder (513) is fixedly connected with a fixing frame (514), and the fixing frame (514) is slidably clamped with the straight slide rail (511); A laser emitter (515) is fixedly installed through one side of the fixing frame (514).

3. A measuring tool for the installation dimensions of a high-pressure rotor of a steam turbine according to claim 2, characterized in that: The rotating mechanism (52) includes a fixing box (521) fixedly installed at the top of the fixing frame (514), a motor one (522) fixedly installed on the inner bottom wall of the fixing box (521), a circular sliding plate (523) fixedly installed at the top of the fixing box (521), and the output end of the motor one (522) movably penetrates through the axis of the circular sliding plate (523) and is fixedly connected with a fixing disc (525); A plurality of sliding columns (524) are slidably connected in a circular array inside the circular sliding plate (523), and the tops of the plurality of sliding columns (524) are jointly fixedly connected with the bottom end of the fixing disc (525).

4. A measuring tool for the installation dimensions of a high-pressure rotor of a steam turbine according to claim 3, characterized in that: The moving mechanism (53) includes a long plate (531) fixedly installed at the top of the fixing disc (525), a chute (532) penetrating through the top of the long plate (531), a screw rod (533) rotatably connected inside the chute (532), an I-shaped slider (535) slidably clamped inside the chute (532), and the I-shaped slider (535) is threadedly penetrated with the screw rod (533); A motor two (534) is fixedly installed on one side of the long plate (531), and the output end of the motor two (534) movably extends into the chute (532) and is fixedly connected with one end of the screw rod (533).

5. A measuring tool for the installation dimensions of a high-pressure rotor of a steam turbine according to claim 4, characterized in that: The electric telescopic rod (54) is fixedly installed at the bottom of the I-shaped slider (535), and the ball head measuring instrument (55) is fixedly connected to the output end of the electric telescopic rod (54).

6. A measuring tool for the installation dimensions of a high-pressure rotor of a steam turbine according to claim 1, characterized in that: The adjusting mechanism (2) includes a bottom plate (21) placed flat on the ground, a chute plate (22) and two T-shaped slide rails (23) respectively fixedly installed at the top of the adjusting mechanism (2), and the two T-shaped slide rails (23) are located on both sides of the chute plate (22); Two of the T-shaped slide rails (23) and the inside of the chute plate (22) are jointly and slidably connected with two E-shaped slide plates (25) relatively, and the tops of the two E-shaped slide plates (25) are fixedly connected to the bottoms of the two placing plates (1); A bidirectional lead screw (24) is rotatably connected to the inside of the chute plate (22). The bidirectional lead screw (24) is threadedly penetrated between the two E-shaped slide plates (25). A third motor (26) is fixedly installed on one side of the chute plate (22). The output end of the third motor (26) extends into the inside of the third motor (26) and is fixedly connected to one end of the bidirectional lead screw (24).

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