Auxiliary maintenance mechanism for steam turbine

Abstract

The utility model belongs to the technical field of steam turbine maintenance equipment, and particularly relates to a steam turbine auxiliary maintenance mechanism which is characterized in that a moving block is connected to a linear module in a sliding mode, a vertical telescopic rod is arranged on the moving block, an auxiliary support is arranged at the output end of the telescopic rod, and a fixing plate is arranged on the auxiliary support; the fixing plate is connected with two sets of sliding blocks in a sliding mode, and the two sets of sliding blocks are driven by a power device. A connecting rope is arranged on the two sets of sliding blocks, a fixed sleeve is fixedly connected to the connecting rope, a bearing is arranged in the fixed sleeve, and two sets of auxiliary plates are arranged on the fixed sleeve; the two groups of auxiliary plates are connected with two groups of main clamping plates in a sliding manner, one group of auxiliary plates is rotatably connected with a bidirectional lead screw which is in threaded connection with the main clamping plates, one end of the bidirectional lead screw is provided with a clamping handle, and the other group of auxiliary plates is provided with a guide rod which is sleeved with the main clamping plates.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam turbine maintenance equipment, and specifically relates to an auxiliary steam turbine maintenance mechanism. Background Art

[0002] A steam turbine is a thermal mechanical device driven by high-temperature and high-pressure steam, usually used in power plants and industrial production. It uses the kinetic energy of steam to drive the blades on the shaft to rotate, thereby driving a generator or other mechanical equipment. With the progress of technology and the improvement of environmental protection requirements, modern steam turbines tend to improve efficiency, reduce emissions and noise. At the same time, research is also being carried out on using new materials and processes to improve their performance and reliability;

[0003] Steam turbine blades are the general term for the static and moving blades used in steam turbines. Blades are key components of steam turbines and are also one of the most delicate and important components. They are under the combined action of high temperature, high pressure, huge centrifugal force, steam force, steam excitation force, corrosion, vibration and water droplet erosion in the wet steam area under extremely harsh conditions. Their aerodynamic performance, machining geometry, surface roughness, installation clearance, operating conditions, fouling and other factors all affect the efficiency and output of the steam turbine; their structural design, vibration strength and operating mode have a decisive impact on the safety and reliability of the unit.

[0004] Existing maintenance devices can detect relatively large burrs, but they cannot detect some relatively small burrs accurately. Therefore, the detection accuracy will be reduced. And after the detection is completed, the angle of the grinding device needs to be adjusted for grinding, which will increase the working steps and reduce the working efficiency;

[0005] Therefore, the utility model designs an auxiliary steam turbine maintenance mechanism to solve the technical problems existing in the prior art. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an auxiliary steam turbine maintenance mechanism to solve the above technical problems.

[0007] The solution adopted by the utility model is: an auxiliary steam turbine maintenance mechanism, including a linear module, characterized in that:

[0008] A moving block is slidably connected to the linear module, a vertical telescopic rod is arranged on the moving block, an auxiliary bracket is arranged at the output end of the telescopic rod, and a fixing plate is arranged on the auxiliary bracket;

[0009] Two sliding blocks are slidably connected to the fixing plate, and the two sliding blocks are driven by a power device;

[0010] Two sets of the sliding blocks are provided with connecting ropes, and a fixed sleeve is fixedly connected to the connecting ropes. A bearing is arranged inside the fixed sleeve, and two sets of auxiliary plates are arranged on the fixed sleeve;

[0011] Two sets of main clamping plates are slidably connected to the two sets of auxiliary plates. One end of a bidirectional lead screw that is rotationally connected to one of the auxiliary plates and threadedly connected to the main clamping plate is provided with a clamping handle, and a guide rod sleeved with the main clamping plate is arranged on the other set of auxiliary plates.

[0012] Preferably, the power device includes a sliding groove opened on a fixing plate. A bidirectional telescopic rod is arranged inside the sliding groove, and the output end of the bidirectional telescopic rod is connected to the sliding block.

[0013] Preferably, both the bidirectional telescopic rod and the vertical telescopic rod are electric telescopic rods, and the electric telescopic rods are electrically connected to a controller.

[0014] Preferably, two sets of main clamping plates are slidably arranged on both end faces of the fixed sleeve.

[0015] Preferably, a plurality of groups of springs are arranged on the main clamping plate, and the other ends of the plurality of groups of springs are connected to an auxiliary clamping plate.

[0016] Preferably, an anti-slip pad is arranged on the inner side wall of the main clamping plate.

[0017] Additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. Description of the Drawings

[0018] Figure 1 is one of the perspective views of the three-dimensional diagram of the present utility model.

[0019] Figure 2 is the second perspective view of the three-dimensional diagram of the present utility model

[0020] Figure 3 is one of the sectional perspective views of the three-dimensional diagram of the present utility model.

[0021] Reference numerals: 1, linear module; 2, moving block; 3, vertical telescopic rod; 4, auxiliary bracket; 5, fixing plate; 6, sliding block; 7, connecting rope; 8, fixed sleeve; 9, bearing; 10, auxiliary plate; 11, main clamping plate; 12, bidirectional lead screw; 13, clamping handle; 14, guide rod; 15, sliding groove; 16, bidirectional telescopic rod; 17, auxiliary clamping plate; 18, spring. Detailed Embodiment

[0022] Regarding the foregoing and other technical contents, features and effects of the present utility model, in the following with reference to the attached Figures 1-3In the detailed description of the embodiments, it will be clearly presented. The structural contents mentioned in the following embodiments are all referenced to the accompanying drawings of the specification.

[0023] Next, various exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

[0024] Embodiment 1, a steam turbine auxiliary maintenance mechanism, including a linear module 1, characterized in that:

[0025] A moving block 2 is slidably connected to the linear module 1. A vertical telescopic rod 3 is provided on the moving block 2. An auxiliary bracket 4 is provided at the output end of the telescopic rod. A fixing plate 5 is provided on the auxiliary bracket 4;

[0026] Two groups of sliding blocks 6 are slidably connected to the fixing plate 5, and the two groups of sliding blocks 6 are driven by a power device;

[0027] Two groups of connecting ropes 7 are provided on the two groups of sliding blocks 6. A fixed sleeve 8 is fixedly connected to the connecting rope 7. A bearing 9 is provided in the fixed sleeve 8. Two groups of auxiliary plates 10 are provided on the fixed sleeve 8;

[0028] Two groups of main clamping plates 11 are slidably connected to the two groups of auxiliary plates 10. A bidirectional lead screw 12 that is threadedly connected to the main clamping plate 11 is rotatably connected to one of the two groups of auxiliary plates 10. A clamping handle 13 is provided at one end of the bidirectional lead screw 12. A guide rod 14 sleeved with the main clamping plate 11 is provided on the other group of auxiliary plates 10.

[0029] Furthermore, the power device includes a sliding groove 15 opened on the fixing plate 5. A bidirectional telescopic rod 16 is provided in the sliding groove 15, and the output end of the bidirectional telescopic rod 16 is connected to the sliding block 6.

[0030] Furthermore, both the bidirectional telescopic rod 16 and the vertical telescopic rod 3 are electrically telescopic rods, and the electrically telescopic rods are electrically connected to the controller.

[0031] Furthermore, two groups of main clamping plates 11 are slidably provided on both end faces of the fixed sleeve 8.

[0032] Furthermore, a plurality of groups of springs 18 are provided on the main clamping plate 11, and the other ends of the plurality of groups of springs 18 are connected to an auxiliary clamping plate 17.

[0033] Furthermore, an anti-slip pad is provided on the inner side wall of the main clamping plate 11.

[0034] When in use, the moving block 2 can be driven by the linear module 1, so that the whole device moves longitudinally;

[0035] By driving the vertical telescopic rod 3, the fixed plate 5 can be driven to move, so that the whole device moves vertically;

[0036] By driving the bidirectional telescopic rod 16, the sliding block 6 can be driven to move, so as to realize the adjustment of the distance between the two fixed sleeves 8;

[0037] After the steam turbine housing is opened, according to the size of the steam turbine, the extension distance of the bidirectional telescopic rod 16 is adjusted. After the adjustment, the two fixed sleeves 8 are respectively installed at the two shaft ends of the steam turbine and are connected in cooperation with the bearings 9 in the fixed sleeves 8. The shaft ends of the fixed sleeves 8 extend out of the fixed sleeves 8 by at least one meter;

[0038] At this time, driving the linear module 1 and the vertical telescopic rod 3 can change the position of the steam turbine for moving to the maintenance place or the grinding place;

[0039] Under the action of the bearing 9, the steam turbine can rotate circumferentially. The operator carefully checks the blades of the steam turbine, and small burrs can be detected without leaving dead corners;

[0040] If small burrs or abnormal conditions are detected on the blades, rotate the clamping handle 13 to drive the double-threaded screw to rotate. The two main clamping plates 11 move relative to each other along the inner side wall of the auxiliary plate 10 until they contact the shaft end of the steam turbine. At this time, the steam turbine will not rotate any further and can be carefully maintained and ground. In this way, it is convenient for maintenance. During grinding, the steam turbine will not rotate, with high stability, convenient operation, and improved maintenance efficiency;

[0041] Furthermore, a motor can be arranged on the fixed sleeve 8. The motor replaces the clamping handle 13, and the double-threaded screw 12 is driven by the motor. The operator holds the handle to control the motor, which can realize the function of quick clamping.

[0042] The above description is only for explaining the present invention. It should be understood that the present invention is not limited to the above embodiments, and various flexible forms conforming to the idea of the present invention are within the protection scope of the present invention.

Claims

1. A steam turbine auxiliary maintenance mechanism, including a linear module (1), characterized in that: A moving block (2) is slidably connected to the linear module (1), a vertical telescopic rod (3) is provided on the moving block (2), an auxiliary bracket (4) is provided at the output end of the telescopic rod, and a fixing plate (5) is provided on the auxiliary bracket (4); Two groups of sliding blocks (6) are slidably connected to the fixing plate (5), and the two groups of sliding blocks (6) are driven by a power device; Connecting ropes (7) are provided on the two groups of sliding blocks (6), a fixing sleeve (8) is fixedly connected to the connecting rope (7), a bearing (9) is provided in the fixing sleeve (8), and two groups of auxiliary plates (10) are provided on the fixing sleeve (8); Two groups of main clamping plates (11) are slidably connected to the two groups of auxiliary plates (10). A two-way lead screw (12) that is threadedly connected to the main clamping plate (11) is rotatably connected to one of the auxiliary plates (10). A clamping handle (13) is provided at one end of the two-way lead screw (12), and a guide rod (14) sleeved with the main clamping plate (11) is provided on the other group of auxiliary plates (10).

2. The auxiliary overhaul mechanism of a steam turbine according to claim 1, characterized in that, The power device includes a sliding groove (15) opened on the fixing plate (5), a two-way telescopic rod (16) is provided in the sliding groove (15), and the output end of the two-way telescopic rod (16) is connected to the sliding block (6).

3. The auxiliary maintenance mechanism of a steam turbine according to claim 2, characterized in that, Both the two-way telescopic rod (16) and the vertical telescopic rod (3) are electrically telescopic rods, and the electrically telescopic rods are electrically connected to a controller.

4. The auxiliary maintenance mechanism of a steam turbine according to claim 1, characterized in that, Two groups of main clamping plates (11) are slidably provided on both end faces of the fixing sleeve (8).

5. The auxiliary overhaul mechanism of a steam turbine according to claim 1, characterized in that, A plurality of groups of springs (18) are provided on the main clamping plate (11), and the other ends of the plurality of groups of springs (18) are connected to an auxiliary clamping plate (17).

6. The auxiliary overhaul mechanism of a steam turbine according to claim 5, characterized in that, An anti-slip pad is provided on the inner side wall of the main clamping plate (11).

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