Steam turbine fixing mechanism

Abstract

The utility model relates to the technical field of steam turbines, and provides a steam turbine fixing mechanism which comprises a supporting body, the supporting body is of a rectangular structure, a supporting moving assembly is arranged on the supporting body, and an installation guiding assembly is arranged on the lower end face of the supporting body. The supporting and moving assembly comprises a receding groove, the receding groove is formed in the bottom face of the supporting body, a receding cavity is formed in the surface of one side of the receding groove, a movable shaft is arranged in the receding groove, the movable shaft is sleeved with a swing shaft, a connecting table is arranged at the tail end of the swing shaft, a connecting frame is arranged on the connecting table, a supporting shaft is arranged on the connecting frame, and walking wheels are movably arranged on the supporting shaft in a sleeving mode. By means of the technical scheme, the problems that in the prior art, movement is difficult in the supporting process, stress is poor in the lifting process of a lifting machine, and lifting is difficult are solved.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, specifically to a steam turbine fixing mechanism. Background Technology

[0002] A steam turbine, also known as a steam engine, is a rotary steam power unit. High-temperature, high-pressure steam passes through a fixed nozzle, becomes an accelerated airflow, and is then injected onto the blades, causing the rotor, which is equipped with rows of blades, to rotate and perform work. Steam turbines are the main equipment in modern thermal power plants and are also used in the metallurgical industry, chemical industry, and ship propulsion systems.

[0003] Due to the continuous development of metallurgical technology, the structure of steam turbines has also been greatly improved. Large units generally adopt a double-layer structure with high and medium pressure combined cylinders, and the high and medium pressure rotors adopt a single rotor structure. The high, medium and low pressure rotors are all made of integral forging structure, and the bearings adopt tilting pad structure more often. Countries around the world are developing and designing large-capacity, high-parameter units, which will make it possible to integrate high, medium and low pressure rotors.

[0004] A steam turbine is an external combustion rotary machine that converts the thermal energy of steam into mechanical work. After the steam from the boiler enters the steam turbine, it passes through a series of annular nozzles and moving blades in sequence, converting the thermal energy of the steam into the mechanical energy of the rotating steam turbine rotor. The steam undergoes energy conversion in different ways in the steam turbine, which constitutes steam turbines with different working principles.

[0005] During the use of steam turbines, they are usually installed on a support platform. However, moving the turbine is difficult during the support process, and there is uneven force distribution and lifting difficulty during the hoisting process. Therefore, a steam turbine fixing mechanism was developed. Utility Model Content

[0006] This utility model proposes a turbine fixing mechanism, which solves the problems of difficulty in movement during the support process and uneven force and difficulty in lifting during the lifting process of the crane in related technologies.

[0007] The technical solution of this utility model is as follows: including...

[0008] The support body has a rectangular structure;

[0009] A supporting movable component is disposed on the support body;

[0010] The installation guide component is disposed on the lower end face of the support body;

[0011] The supporting moving component includes a clearance groove, which is opened on the bottom surface of the support body. A clearance cavity is provided on one side surface of the clearance groove. A movable shaft is provided in the clearance groove. A swing shaft is fitted on the movable shaft. A connecting platform is provided at the end of the swing shaft. A connecting frame is provided on the connecting platform. A support shaft is provided on the connecting frame. A traveling wheel is movably fitted on the support shaft.

[0012] As a further technical solution, one end face of the swing shaft is provided with an arc-shaped surface, and one side surface of the relief groove is provided with a positioning groove, which matches the side wall contour of the swing shaft.

[0013] As a further technical solution, the installation guide assembly includes an insertion cavity, a connecting shaft is connected to the insertion cavity by a pin, a force-bearing frame is connected to the connecting shaft by a pin, a force-bearing platform is provided at the end of the force-bearing frame, and a force-bearing groove is provided on the upper surface of the force-bearing platform.

[0014] As a further technical solution, a force-bearing pad is provided inside the force-bearing groove. The force-bearing pad has an arc-shaped structure and is made of rubber material. The force-bearing pad is located on the upper end surface of the force-bearing groove.

[0015] As a further technical solution, an anti-slip pad is provided at the top of the insertion cavity, and the anti-slip pad matches the width of the insertion cavity.

[0016] As a further technical solution, a reinforcing pad is fixedly fitted on the walking wheel, and the reinforcing pad is a cylindrical sleeve made of anti-slip rubber.

[0017] As a further technical solution, the support shaft is inserted into the connecting frame, and the support shaft and the connecting frame are connected by a bearing.

[0018] As a further technical solution, the number of the clearance grooves is four, and the multiple clearance grooves are respectively located at the four bottom corners of the support body.

[0019] As a further technical solution, a support platform is provided at the four corners of the side wall of the support body, a hoisting frame is provided on the upper surface of the support platform, and a hoisting groove is provided inside the hoisting frame.

[0020] As a further technical solution, the support body includes a mounting groove, which is opened on the upper end face of the support body. A positioning strip is provided around the inner surface of the mounting groove, and the corners of the positioning strip are rounded.

[0021] The working principle and beneficial effects of this utility model are as follows:

[0022] In this invention, a steam turbine is mounted on a support body in a supporting movable assembly. When the steam turbine is not mounted on the support body, the support body is slightly raised, and the swing shaft swings on the movable shaft, causing the swing shaft to extend out of the clearance groove. At this time, the traveling wheels on the support shaft can provide support and allow the support body to move, which facilitates the support of the steam turbine. The lifting frame on the support platform facilitates the lifting of the support body by a crane. After the steam turbine is mounted on the support body, it can be lifted by a crane. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is another perspective axonometric view of the present invention;

[0026] Figure 3 This is an isometric view of the load-bearing frame of this utility model;

[0027] Figure 4 This is a side view of the axle of the walking wheel of this utility model;

[0028] In the diagram: 1. Support body; 1-1. Mounting groove; 1-2. Positioning strip; 2. Support moving assembly; 2-1. Clearance groove; 2-2. Clearance cavity; 2-3. Movable shaft; 2-4. Swing shaft; 2-5. Connecting platform; 2-6. Connecting frame; 2-7. Support shaft; 2-8. Traveling wheel; 2-9. Arc-shaped surface; 2-10. Positioning groove; 3. Installation guide assembly; 3-1. Insertion cavity; 3-2. Connecting shaft; 3-3. Force-bearing frame; 3-4. Force-bearing platform; 3-5. Force-bearing groove; 4. Force-bearing pad; 5. Anti-slip pad; 6. Reinforcing pad; 7. Bearing platform; 8. Lifting frame; 9. Lifting groove. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0030] like Figures 1-4 As shown, this embodiment proposes a steam turbine fixing mechanism, including...

[0031] Support 1, which has a rectangular structure;

[0032] Supporting movable component 2 is disposed on support body 1;

[0033] Installation guide component 3 is installed on the lower end face of support body 1;

[0034] The supporting moving component 2 includes a clearance groove 2-1, which is opened on the bottom surface of the support body 1. A clearance cavity 2-2 is provided on one side surface of the clearance groove 2-1. A movable shaft 2-3 is provided inside the clearance groove 2-1. A swing shaft 2-4 is fitted on the movable shaft 2-3. A connecting platform 2-5 is provided at the end of the swing shaft 2-4. A connecting frame 2-6 is provided on the connecting platform 2-5. A support shaft 2-7 is provided on the connecting frame 2-6. A traveling wheel 2-8 is movably fitted on the support shaft 2-7.

[0035] In this embodiment, the support body 1 is used to mount the steam turbine. When the support body 1 is not mounted with the steam turbine, the support body 1 is slightly raised, and the swing shaft 2-4 swings on the movable shaft 2-3, so that the swing shaft 2-4 extends out of the clearance groove 2-1. At this time, the traveling wheel 2-8 on the support shaft 2-7 can provide support and allow the support body 1 to move.

[0036] Specifically, one end face of the swing shaft 2-4 is provided with an arc-shaped surface 2-9, and one side surface of the clearance groove 2-1 is provided with a positioning groove 2-10, which matches the side wall contour of the swing shaft 2-4.

[0037] In this embodiment, the arc-shaped surface 2-9 is used to make way for the swing shaft 2-4 during the swing process, preventing the corners of the swing shaft 2-4 from contacting the clearance groove 2-1 during the swing process. The positioning groove 2-10 fixes the swing shaft 2-4 after it swings out of the clearance groove 2-1. The swing shaft 2-4 can be embedded in the positioning groove 2-10 for positioning.

[0038] Furthermore, the installation guide assembly 3 includes an insertion cavity 3-1, a connecting shaft 3-2 connected to the insertion cavity 3-1 by a pin, a force-bearing frame 3-3 connected to the connecting shaft 3-2 by a pin, a force-bearing platform 3-4 provided at the end of the force-bearing frame 3-3, and a force-bearing groove 3-5 provided on the upper surface of the force-bearing platform 3-4.

[0039] In this embodiment, a lifting plate can be inserted into the insertion cavity 3-1. The lifting plate rests in the force groove 3-5 in the force-bearing platform 3-4. By pressing down one end of the lifting plate, the support body 1 can be gently lifted to a certain height, making it easy for the traveling wheels 2-8 to rotate and swing out. During the lifting process, no steam turbine is installed on the support body 1, and the support body 1 itself is relatively light in weight.

[0040] Furthermore, a force-bearing pad 4 is provided inside the force-bearing groove 3-5. The force-bearing pad 4 has an arc-shaped structure and is made of rubber material. The force-bearing pad 4 is located on the upper end face of the force-bearing groove 3-5. An anti-slip pad 5 is provided at the top inside the insertion cavity 3-1. The anti-slip pad 5 matches the width of the insertion cavity 3-1. A reinforcing pad 6 is fixedly fitted on the traveling wheel 2-8. The reinforcing pad 6 is a cylindrical sleeve made of anti-slip rubber.

[0041] In this embodiment, the force-bearing pad 4 is used to bear force and buffer, preventing the lifting plate from damaging the force-bearing groove 3-5, and the anti-slip pad 5 is used to prevent slipping after the lifting plate is inserted into the insertion cavity 3-1.

[0042] Furthermore, the support shaft 2-7 is inserted into the connecting frame 2-6, and the support shaft 2-7 and the connecting frame are connected by bearings. There are 4 clearance grooves 2-1, and the multiple clearance grooves 2-1 are located at the four bottom corners of the support body 1. The support body 1 is provided with a bearing platform 7 at the four corners of the side wall. The upper end of the bearing platform 7 is provided with a lifting frame 8, and the lifting frame 8 is provided with a lifting groove 9 inside.

[0043] In this embodiment, the lifting frame 8 on the support platform 7 facilitates the lifting of the support body 1 by a crane. After the steam turbine is installed on the support body 1, it can be lifted by a crane. The lifting groove 9 is used to position the lifting line.

[0044] Furthermore, the support body 1 includes a mounting groove 1-1, which is opened on the upper end face of the support body 1. A positioning strip 1-2 is provided around the inner surface of the mounting groove 1-1, and the corners of the positioning strip 1-2 are rounded.

[0045] In this embodiment, the mounting slot 1-1 and the positioning strip 1-2 are used to assist in the installation of the steam turbine.

[0046] When the support body 1 without a turbine installed needs to be moved, a lifting plate can be inserted into the insertion cavity 3-1. The lifting plate rests in the force groove 3-5 in the force-bearing platform 3-4. By pressing down one end of the lifting plate, the support body 1 can be gently lifted to a certain height, making it easier for the traveling wheels 2-8 to rotate and swing out. During the lifting process, the support body 1 is not installed with a turbine, and the support body 1 itself is relatively light. When the support body 1 is not equipped with a turbine, the support body 1 is slightly lifted, and the swing shaft 2-4 swings on the movable shaft 2-3, so that the swing shaft 2-4 extends out of the clearance groove 2-1. At this time, the traveling wheels 2-8 on the support shaft 2-7 can provide support and allow the support body 1 to move.

[0047] The lifting frame 8 on the support platform 7 facilitates the lifting of the support body 1 by a crane. After the steam turbine is installed on the support body 1, it can be lifted by a crane. The lifting slot 9 is used to position the lifting line.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A steam turbine fixing mechanism, characterized in that, include Support body (1), the support body (1) is rectangular in shape; A support movable component (2) is disposed on the support body (1); Installation guide assembly (3) is disposed on the lower end face of the support body (1); The supporting moving component (2) includes a relief groove (2-1) which is opened on the bottom surface of the support body (1). A relief cavity (2-2) is provided on one side surface of the relief groove (2-1). A movable shaft (2-3) is provided in the relief groove (2-1). A swing shaft (2-4) is fitted on the movable shaft (2-3). A connecting platform (2-5) is provided at the end of the swing shaft (2-4). A connecting frame (2-6) is provided on the connecting platform (2-5). A support shaft (2-7) is provided on the connecting frame (2-6). A traveling wheel (2-8) is movably fitted on the support shaft (2-7).

2. The turbine fixing mechanism according to claim 1, characterized in that, One end face of the swing shaft (2-4) is provided with an arc-shaped surface (2-9), and one side surface of the relief groove (2-1) is provided with a positioning groove (2-10), which matches the side wall contour of the swing shaft (2-4).

3. The turbine fixing mechanism according to claim 1, characterized in that, The installation guide assembly (3) includes an insertion cavity (3-1), in which a connecting shaft (3-2) is connected by a pin, and a force-bearing frame (3-3) is connected by a pin on the connecting shaft (3-2). A force-bearing platform (3-4) is provided at the end of the force-bearing frame (3-3), and a force-bearing groove (3-5) is provided on the upper surface of the force-bearing platform (3-4).

4. A steam turbine fixing mechanism according to claim 3, characterized in that, A force-bearing pad (4) is provided inside the force-bearing groove (3-5). The force-bearing pad (4) has an arc-shaped structure and is made of rubber material. The force-bearing pad (4) is located on the upper end surface of the force-bearing groove (3-5).

5. A steam turbine fixing mechanism according to claim 3, characterized in that, An anti-slip pad (5) is provided at the top of the insertion cavity (3-1), and the anti-slip pad (5) matches the width of the insertion cavity (3-1).

6. A steam turbine fixing mechanism according to claim 1, characterized in that, The walking wheels (2-8) are fixedly fitted with reinforcing pads (6), which are cylindrical sleeves made of anti-slip rubber.

7. A steam turbine fixing mechanism according to claim 1, characterized in that, The support shaft (2-7) is inserted through the connecting frame (2-6), and the support shaft (2-7) and the connecting frame (2-6) are connected by bearings.

8. A steam turbine fixing mechanism according to claim 1, characterized in that, There are four relief grooves (2-1), and the relief grooves (2-1) are located at the four bottom corners of the support (1).

9. A steam turbine fixing mechanism according to claim 1, characterized in that, The support body (1) has a support platform (7) at the four corners of its side wall. The upper surface of the support platform (7) is provided with a hoisting frame (8), and the hoisting frame (8) is provided with a hoisting groove (9).

10. A steam turbine fixing mechanism according to claim 1, characterized in that, The support body (1) includes a mounting groove (1-1), which is opened on the upper end face of the support body (1). A positioning strip (1-2) is provided around the inner surface of the mounting groove (1-1), and the corners of the positioning strip (1-2) are rounded.

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