Combination tool for centering coupling of gas turbine

Abstract

A gas turbine coupling centering combination tool belongs to the technical field of centering tools and comprises a U-shaped base, two inverted-U-shaped carrying tables with rollers at the bottoms and a hydraulic telescopic rod A are transversely and slidably mounted in the U-shaped base, a lifting plate is fixedly mounted on the upper surface of the hydraulic telescopic rod A, and the lifting plate is vertically and slidably arranged in the U-shaped base. Four orientation rods A are slidably installed at the four corners of the upper surface of the inverted-U-shaped carrying table in a penetrating mode, auxiliary wheels are fixedly installed on the lower surfaces of the orientation rods A, the lower surfaces of the auxiliary wheels are attached to the upper surface of the lifting plate, a fixing plate is fixedly installed among the upper surfaces of the four orientation rods A, and an arc-shaped lifting table is fixedly installed on the upper surface of the fixing plate. Arc-shaped lifting tables are arranged on the U-shaped base, arc-shaped pressing plates are arranged above the arc-shaped lifting tables, lifting locking mechanisms are arranged between the arc-shaped pressing plates and the corresponding fixing plates, a synchronous adjusting device is arranged in the U-shaped base, synchronous lifting of the two ends of the gas turbine coupler can be achieved, and the centering accuracy is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of centering tooling, and in particular relates to a combined centering tooling for a gas turbine coupling. Background Art

[0002] The installation and alignment of gas turbine couplings encompasses three key areas: rough alignment, fine alignment, and alignment status checks during the post-operation and maintenance phase. During these checks, an alignment tool is typically required to coordinate the gas turbine coupling with the magnetic base for the dial indicator and the laser alignment tool to complete the alignment check.

[0003] After searching, the publication number in the relevant field is: CN220051593U, and the patent name is a gas turbine coupling alignment assembly tool, which uses two sets of lifting devices with locking parts to drive the two ends of the clamped gas turbine coupling for adjustment. However, in actual use, since two sets of independent lifting devices are used to adjust the two ends of the coupling respectively, it is not convenient to make the two ends rise and fall synchronously during adjustment. This easily leads to the two ends of the gas turbine coupling being difficult to maintain a balanced state during the adjustment process. Once the two ends are unbalanced, it will have an adverse effect on the subsequent alignment detection. On the one hand, an unbalanced coupling may make the alignment detection data inaccurate and unable to truly reflect the alignment of the coupling. On the other hand, the unbalanced state may also increase the difficulty of alignment adjustment, requiring more time and effort to make repeated adjustments, reducing work efficiency.

[0004] In order to solve the above-mentioned problem of inconvenience in synchronously lifting and lowering and adjusting the displacement of the two ends of the gas turbine coupling, another gas turbine coupling alignment assembly tool is proposed. Utility Model Content

[0005] In view of the problem that the gas turbine coupling centering assembly tool in the prior art is not convenient for synchronously lifting and adjusting the displacement of the two ends of the gas turbine coupling, the utility model provides a gas turbine coupling centering assembly tool. During the centering adjustment process, the hydraulic telescopic rod B can be used in conjunction with the lifting plate to drive the fixed plate and the arc-shaped lifting platform to move upward through the directional rod A with auxiliary wheels. When the lifting plate moves downward, the arc-shaped lifting platform can move downward with the help of its own weight, thereby achieving the synchronous lifting and lowering of the two ends of the gas turbine coupling. Synchronous lifting is crucial to ensure the centering accuracy of the coupling. It can avoid the tilting and imbalance caused by the lack of synchronization between the two ends, thereby greatly improving the accuracy of the centering, and effectively solving the problem that the gas turbine coupling centering assembly tool in the prior art is not convenient for synchronously lifting and adjusting the displacement of the two ends of the gas turbine coupling. The specific technical solution is as follows:

[0006] The U-shaped base has two inverted U-shaped platforms with rollers at the bottom and a hydraulic telescopic rod A installed in the base for horizontal sliding. The upper surface of the hydraulic telescopic rod A is fixedly installed with a lifting plate. The lifting plate is vertically slidably arranged in the U-shaped base, and the lifting plate is located on the inner side of the inverted U-shaped platform. Four directional rods A are slidably installed through the four corners of the upper surface of the inverted U-shaped platform, and auxiliary wheels are fixedly installed on the lower surfaces of the directional rods A. The lower surfaces of the auxiliary wheels are in contact with the upper surfaces of the lifting plates, and a fixing plate is fixedly installed between the upper surfaces of the four directional rods A. An arc-shaped lifting platform is fixedly installed on the upper surface of the fixing plate, and an arc-shaped pressing plate is installed above the arc-shaped lifting platform, and a lifting locking mechanism is installed between the arc-shaped pressing plate and the corresponding fixing plate. A synchronous adjustment device is installed in the U-shaped base for synchronously driving the two inverted U-shaped platforms to move inward or outward.

[0007] In the above technical solution, the lifting and locking mechanism includes four directional rods B, which are symmetrically fixed on the lower surface of the arc-shaped pressure plate. The directional rods B pass through the corresponding arc-shaped lifting platform and the fixed plate, and a base plate is fixedly installed between the lower surfaces of the four directional rods B, and a hydraulic telescopic rod B is fixedly installed between the base plate and the corresponding fixed plate.

[0008] In the above technical solution, a groove is formed through the upper surface of the inverted U-shaped carrier, and the groove is located directly below the corresponding bottom plate.

[0009] In the above technical solution, the synchronous adjustment device includes a bidirectional screw with positive and negative teeth rotatably installed in the inverted U-shaped carrier and a stepper motor fixedly installed on the right surface of the inverted U-shaped carrier, and the output end of the stepper motor is fixedly connected to the right end of the bidirectional screw with positive and negative teeth.

[0010] In the above technical solution, the left and right surfaces of the inverted U-shaped platform are penetrated by sliding grooves, and directional rods C are fixedly installed in the sliding grooves. The left and right ends of the lifting plate are slidably installed between the corresponding sliding grooves and directional rods C respectively.

[0011] In the above solution, two guide rods are symmetrically fixedly installed in the U-shaped base, and the inverted U-shaped platform is slidably installed between the two guide rods.

[0012] Compared with the prior art, the utility model of a gas turbine coupling alignment assembly has the following beneficial effects:

[0013] During the alignment process, this utility model utilizes the cooperation of a hydraulic telescopic rod B and a lifting plate to drive the fixed plate and curved lifting platform upward via a directional rod A with auxiliary wheels. As the lifting plate moves downward, the curved lifting platform lowers under its own weight, achieving synchronized lifting of both ends of the gas turbine coupling. Synchronous lifting is crucial for ensuring coupling alignment accuracy, as it avoids tilting and imbalance caused by asynchronous movement of the two ends, thereby significantly improving alignment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0016] Figure 3 This is a schematic diagram of the main structure of the present utility model.

[0017] Figure 4 It is a left-side structural schematic diagram of the present invention.

[0018] Figures 1-4 Among them: 1. U-shaped base; 11. Slide; 111. Orienting rod C; 12. Guide rod; 2. Inverted U-shaped carrier; 21. Orienting rod A; 22. Auxiliary wheel; 23. Groove; 3. Fixed plate; 31. Arc-shaped lifting platform; 32. Arc-shaped pressure plate; 4. Lifting and locking mechanism; 41. Orienting rod B; 42. Bottom plate; 43. Hydraulic telescopic rod B; 5. Hydraulic telescopic rod A; 51. Lifting plate; 6. Synchronous adjustment device; 61. Bidirectional screw with positive and negative teeth; 62. Stepper motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In this embodiment, front, back, left, right, up and down are represented by Figure 1 Describes the datum. Figures 1-4 , the utility model provides a technical solution:

[0021] A gas turbine coupling alignment assembly tool comprises a U-shaped base 1, in which two inverted U-shaped platforms 2 with rollers at the bottom and a hydraulic telescopic rod A5 are installed for horizontal sliding. A lifting plate 51 is fixedly installed on the upper surface of the hydraulic telescopic rod A5. The lifting plate 51 is vertically slidably arranged in the U-shaped base 1, and the lifting plate 51 is located on the inner side of the inverted U-shaped platform 2. Four directional rods A21 are slidably installed at the four corners of the upper surface of the inverted U-shaped platform 2. The lower surface of the directional rod A21 is fixed. An auxiliary wheel 22 is installed, and the lower surface of the auxiliary wheel 22 is in contact with the upper surface of the lifting plate 51. A fixed plate 3 is fixedly installed between the upper surfaces of the four directional rods A21. An arc-shaped lifting platform 31 is fixedly installed on the upper surface of the fixed plate 3. A curved pressing plate 32 is installed above each of the curved lifting platforms 31. A lifting and locking mechanism 4 is installed between the curved pressing plate 32 and the corresponding fixed plate 3. A synchronous adjustment device 6 is installed in the U-shaped base 1 for synchronously driving the two inverted U-shaped platforms 2 to move inward or outward;

[0022] Before use, first use the synchronous adjustment device 6 to drive the two inverted U-shaped platforms 2 to move outward, and use the lifting and locking mechanism 4 to drive the arc pressure plate 32 to move up, reserving the installation distance. Afterwards, the gas turbine coupling is hoisted between the two arc lifting platforms 31 according to the height of the arc lifting platform 31 with the help of an external hoist (crane or other hoist), and the synchronous adjustment device 6 is used to drive the two inverted U-shaped platforms 2 to move inward, and the two ends of the gas turbine coupling are respectively placed on the corresponding arc lifting platforms 31. Then, the lifting and locking mechanism 4 is used to drive the arc pressure plate 32 to move downward, and the gas turbine coupling is clamped and fixed in the arc lifting platform 31. When adjusting the detection height of the gas turbine coupling, combined with Figure 1 and Figure 2 As shown, the hydraulic telescopic rod A5 is driven to extend, and the arc-shaped lifting platforms 31 on both sides are lifted upward by the lifting plate 51 through the directional rods A21 and the fixed plate 3 at the corresponding positions. When the lifting plate 51 moves downward, the arc-shaped lifting platforms 31 can move downward by virtue of their own weight, thereby achieving synchronous lifting and lowering of both ends of the gas turbine coupling, avoiding tilting and imbalance caused by asynchronous operation of the two ends, and greatly improving the accuracy of alignment.

[0023] It should be noted that, combined with Figure 1 and Figure 2As shown, the lifting and locking mechanism 4 includes four directional rods B41, which are symmetrically fixed on the lower surface of the arc-shaped pressure plate 32. The directional rods B41 pass through the corresponding arc-shaped lifting platform 31 and the fixed plate 3, and a bottom plate 42 is fixedly installed between the lower surfaces of the four directional rods B41. A hydraulic telescopic rod B43 is fixedly installed between the bottom plate 42 and the corresponding fixed plate 3. When the hydraulic telescopic rod B43 is extended, the bottom plate 42 and the directional rod B41 can be used to drive the arc-shaped pressure plate 32 to move downward, thereby clamping and fixing the end of the gas turbine coupling in the arc-shaped lifting platform 31. Conversely, when the hydraulic telescopic rod B43 is shortened, the distance between the arc-shaped pressure plate 32 and the arc-shaped lifting platform 31 can be increased, thereby releasing the fixation of the end of the gas turbine coupling.

[0024] In order to prevent the inverted U-shaped platform 2 from affecting the movement of the bottom plate 42, Figure 1 As shown, a groove 23 is formed through the upper surface of the inverted U-shaped carrier 2, and the groove 23 is located directly below the corresponding bottom plate 42, so that when the bottom plate 42 moves downward, the bottom plate 42 can enter the groove 23 to ensure normal operation.

[0025] like Figure 1 As shown, the synchronous adjustment device 6 includes a forward and reverse bidirectional screw 61 rotatably installed in the inverted U-shaped carrier 2 and a stepper motor 62 fixedly installed on the right surface of the inverted U-shaped carrier 2. The output end of the stepper motor 62 is fixedly connected to the right end of the forward and reverse bidirectional screw 61. The forward and reverse rotation of the stepper motor 62 can drive the forward and reverse bidirectional screw 61 to rotate, thereby utilizing the forward and reverse bidirectional screw 61 to drive the two inverted U-shaped carriers 2 to move inward or outward asynchronously. Since the auxiliary wheel 22 is provided on the lower surface of the directional rod A21, when the inverted U-shaped carrier 2 moves inward or outward, the auxiliary wheel 22 rolls on the lifting plate 51.

[0026] Specifically, two guide rods 12 are symmetrically fixedly installed in the U-shaped base 1, and the inverted U-shaped platform 2 is slidably installed between the two guide rods 12. The inverted U-shaped platform 2 is horizontally slidably installed in the U-shaped base 1 through the guide rods 12.

[0027] Finally, in order to ensure the stability of the lifting plate 51, Figure 1 or Figure 4 As shown, a slide groove 11 is provided on both the left and right surfaces of the inverted U-shaped carrier 2, and a directional rod C111 is fixedly installed in the slide groove 11. The left and right ends of the lifting plate 51 are respectively slidably installed between the corresponding slide groove 11 and the directional rod C111;

[0028] The combination of the chute 11 and the directional rod C111 provides a clear track and guide for the lifting and lowering of the lifting plate 51, ensuring that the lifting plate 51 always moves in the predetermined direction during the lifting process, avoiding instability caused by directional deviation. The directional rod C111 supports the lifting plate 51 in the chute 11, reducing lifting and lowering vibrations and enhancing the stability of the tooling. This lifting mechanism is crucial to the alignment accuracy of the gas turbine coupling, preventing positional deviation and improving alignment accuracy and reliability. It also improves operational safety and reduces the risk of safety accidents.

Claims

1. A gas turbine coupling alignment assembly, comprising a U-shaped base (1), characterized in that: Two inverted U-shaped platforms (2) with rollers at the bottom and a hydraulic telescopic rod A (5) are installed in a horizontal sliding manner in the U-shaped base (1). A lifting plate (51) is fixedly installed on the upper surface of the hydraulic telescopic rod A (5). The lifting plate (51) is vertically slidably arranged in the U-shaped base (1), and the lifting plate (51) is located on the inner side of the inverted U-shaped platform (2). Four directional rods A (21) are slidably installed at the four corners of the upper surface of the inverted U-shaped platform (2). Auxiliary wheels (22) are fixedly installed on the lower surface of the directional rods A (21). The auxiliary wheels ( The lower surface of the directional rods A (22) is fitted with the upper surface of the lifting plate (51), a fixing plate (3) is fixedly installed between the upper surfaces of the four directional rods A (21), an arc-shaped lifting platform (31) is fixedly installed on the upper surface of the fixing plate (3), an arc-shaped pressing plate (32) is installed above each of the arc-shaped lifting platforms (31), a lifting and locking mechanism (4) is installed between the arc-shaped pressing plate (32) and the corresponding fixing plate (3), and a synchronous adjustment device (6) is installed in the U-shaped base (1) for synchronously driving the two inverted U-shaped platforms (2) to move inward or outward.

2. A gas turbine coupling alignment assembly tool according to claim 1, characterized in that: The lifting and locking mechanism (4) includes four directional rods B (41), which are symmetrically fixed on the lower surface of the arc-shaped pressure plate (32). The directional rods B (41) pass through the corresponding arc-shaped lifting platform (31) and the fixed plate (3), and a bottom plate (42) is fixedly installed between the lower surfaces of the four directional rods B (41), and a hydraulic telescopic rod B (43) is fixedly installed between the bottom plate (42) and the corresponding fixed plate (3).

3. A gas turbine coupling alignment assembly tool according to claim 2, characterized in that: A groove (23) is provided through the upper surface of the inverted U-shaped carrier (2), and the groove (23) is located directly below the corresponding bottom plate (42).

4. A gas turbine coupling alignment assembly tool according to claim 1, characterized in that: The synchronous adjustment device (6) comprises a forward and reverse bidirectional screw (61) rotatably mounted in the inverted U-shaped carrier (2) and a stepping motor (62) fixedly mounted on the right surface of the inverted U-shaped carrier (2), wherein the output end of the stepping motor (62) is fixedly connected to the right end of the forward and reverse bidirectional screw (61).

5. The gas turbine coupling alignment assembly according to claim 1, characterized in that: The left and right surfaces of the inverted U-shaped carrier (2) are both penetrated by a sliding groove (11), and a directional rod C (111) is fixedly installed in the sliding groove (11), and the left and right ends of the lifting plate (51) are respectively slidably installed between the corresponding sliding groove (11) and the directional rod C (111).

6. A gas turbine coupling alignment assembly tool according to claim 1, wherein two guide rods (12) are symmetrically fixedly installed in the U-shaped base (1), and the inverted U-shaped platform (2) is slidably installed between the two guide rods (12).

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