Maintenance maintenance box for steam turbine of thermal power plant

Abstract

The utility model discloses a maintenance box for a thermal power plant steam turbine, which belongs to the technical field of thermal power plants and is characterized in that a plurality of layers of rails are arranged in a box body, partition bins are respectively arranged on the rails, front covers are arranged at the front ends of the partition bins, inclined planes are arranged at the rear ends of the partition bins, clamping grooves with downward openings are formed in the inclined planes, connecting rods penetrate through a box cover, and fixing rods matched with the clamping grooves are arranged on the connecting rods. A clamping mechanism is arranged at the top of the connecting rod and comprises a fixing block, a rotating rod and a clamping piece, the fixing block is fixedly connected with the top face of the box cover, a rotating shaft is arranged at the top end of the fixing block and connected with the rotating rod, and the end, away from the fixing block, of the rotating rod is connected with the arc-shaped clamping piece; the end, away from the extension spring, of the clamping piece penetrates into the box cover, and the clamping piece is connected with the connecting rod through a rotating shaft. The utility model not only ensures the stability of the compartment in the moving process, but also is convenient to relieve the spacing of the compartment at any time, so that the compartment is convenient to draw and pull, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal power plants, and in particular relates to a maintenance box for steam turbines in thermal power plants. Background Art

[0002] Thermal power plants mainly have two major professions: operation and maintenance. Among them, maintenance is a technology-intensive profession in power plants. The operation process often involves many types of tools and spare parts. These tools and spare parts are of many types and light in weight. They are inconvenient to carry during unit maintenance and difficult to organize. They are easy to be lost or left behind during the transportation process, especially on some key and sensitive equipment. For example, the use of maintenance boxes for steam turbines can effectively improve on-site working conditions and increase labor efficiency.

[0003] The existing maintenance box for steam turbines in thermal power plants is large in size and difficult to carry. It is not convenient to disassemble and assemble in actual use and is only suitable for the placement of large tools. After the tools are placed on the layered partitions in the box, they will be displaced as the box moves because they are not firmly fixed. Utility Model Content

[0004] The utility model aims to provide a maintenance box for a steam turbine in a thermal power plant to solve the above problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A maintenance box for a steam turbine in a thermal power plant comprises a box body and a box cover, wherein the front end of the box body is an open end, a plurality of layers of tracks are arranged in the box body, partitions are arranged on the tracks respectively, a front cover is arranged at the front end of the partition, an inclined surface is arranged on the rear end, a card slot opening downward is arranged on the inclined surface, a connecting rod is passed through the box cover, a fixing rod matched with the card slot is arranged on the connecting rod, a card connection mechanism is arranged on the top of the connecting rod, the card connection mechanism comprises a fixing block, a rotating rod and a card connection piece, the fixing block is connected and fixed to the top surface of the box cover, a rotating shaft is arranged on the top of the fixing block and connected to the rotating rod, one end of the rotating rod away from the fixing block is connected to the arc-shaped card connection piece, a tension spring is arranged on the rotating rod and connected to the box cover, one end of the card connection piece away from the tension spring is passed through the box cover, and the card connection piece and the connecting rod are connected by a rotating shaft.

[0007] In order to further realize the utility model, a toggle block is arranged on the clamping piece, a compression spring is sleeved on the clamping piece which is passed through one end of the box cover, and the compression spring is clamped between the toggle block and the box cover.

[0008] In order to further realize the utility model, the fixing block and the tension spring are both perpendicular to the box cover.

[0009] In order to further realize the utility model, the connecting rods are symmetrically arranged on both sides of the partition, the connecting rods are parallel to the longitudinal axis of the box body, the fixing rods are perpendicular to the connecting rods, and the fixing rods are arranged toward the partition.

[0010] In order to further implement the present utility model, the apex angle between the top surface and the inclined surface of the partition bin is an acute angle.

[0011] In order to further implement the present utility model, a downward extension plate is provided on the inclined surface, and a card slot is provided between the extension plate and the inclined surface.

[0012] In order to further implement the present utility model, the front cover of the partition bin and the open end of the box body are on the same plane, and a handle is provided on the front cover.

[0013] In order to further implement the present utility model, the length of the connecting rod is less than the depth of the box body.

[0014] In order to further implement the present utility model, a plurality of universal wheels are provided at the bottom of the box body, and a push rod is provided at the upper part of the box body.

[0015] The beneficial effects of the present utility model compared with the prior art are as follows:

[0016] The present utility model hierarchically arranges the structure inside the maintenance box for mechanical equipment, that is, designs a plurality of layers of partition bins, and a card slot is provided at the tail end of the partition bin. The fixing rod provided on the connecting rod passing through the box cover is clamped into the card slot to fix the partition bin. The clamping member of the clamping mechanism rotates around the fixed block driven by the rotating rod, thereby pushing the connecting rod downward, so that the fixing rod passes out from the opening of the card slot, while the tension spring automatically lifts the pull rod upward when the clamping member is released, so that the fixing rod passes into the opening of the card slot to be connected with the card slot, fixing the position of the partition bin.

[0017] The present utility model not only ensures the stability of the partition bin during movement, but also facilitates the release of the partition bin limit at any time, making the partition bin convenient to pull out and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the structure of the present utility model (the partition bin is not shown);

[0019] Figure 2 is Figure 1 the left view of

[0020] Figure 3 is Figure 2 the schematic structural view of the partition bin in

[0021] Figure 4 is Figure 2 the schematic structural view of A in

[0022] The meanings of the accompanying numbers are as follows: 1. box body; 2. track; 3. compartment; 4. front cover; 5. inclined plane; 6. slot; 7. box cover; 8. connecting rod; 9. fixing rod; 10. clamping mechanism; 11. fixing block; 12. rotating rod; 13. clamping part; 14. rotating shaft; 15. tension spring; 16. toggle block; 17. compression spring; 18. extension plate; 19. handle; 20. universal wheel; 21. push rod. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figures 1-4 As shown, a maintenance box for a steam turbine in a thermal power plant comprises a box body 1 and a box cover 7, wherein the front end of the box body 1 is an open end, a plurality of layers of tracks 2 are arranged in the box body 1, partitions 3 are arranged on the tracks 2, a front cover 4 is arranged at the front end of the partition 3, the front cover 4 of the partition 3 is on the same plane as the open end of the box body 1, a handle 19 is arranged on the front cover 4, an inclined surface 5 is arranged at the rear end, the top angle between the top surface of the partition 3 and the inclined surface 5 is an acute angle, a card slot 6 with an opening facing downward is arranged on the inclined surface 5, a downward extension plate 18 is arranged on the inclined surface 5, a card slot 6 is arranged between the extension plate 18 and the inclined surface 5, a connecting rod 8 is passed through the box cover 7, the length of the connecting rod 8 is less than the depth of the box body 1, the connecting rod 8 is symmetrically arranged on both sides of the partition 3, the connecting rod 8 is parallel to the longitudinal axis of the box body 1, and a connecting rod 8 is arranged to cooperate with the card slot 6 The fixing rod 9 is perpendicular to the connecting rod 8, and the fixing rod 9 is arranged toward the compartment 3. A clamping mechanism 10 is arranged on the top of the connecting rod 8, and the clamping mechanism 10 includes a fixing block 11, a rotating rod 12 and a clamping member 13. The fixing block 11 is connected and fixed to the top surface of the box cover 1. A rotating shaft 14 is arranged on the top of the fixing block 11 to connect with the rotating rod 12. One end of the rotating rod 12 away from the fixing block 11 is connected with the arc-shaped clamping member 13. A tension spring 15 is arranged on the rotating rod 12 to connect with the box cover 7. The fixing block 11 and the tension spring 15 are both perpendicular to the box cover 7. One end of the clamping member 13 away from the tension spring 15 is penetrated in the box cover 7. The clamping member 13 is connected to the connecting rod 8 through the rotating shaft 14. A plurality of universal wheels 20 are arranged at the bottom of the box body 1, and a push rod 21 is arranged on the upper part of the box body 1.

[0025] A toggle block 16 is disposed on the clamping member 13 , and a compression spring 17 is sleeved on the clamping member 13 which is passed through one end of the box cover 7 . The compression spring 17 is clamped between the toggle block 16 and the box cover 7 .

[0026] The box body 1 of the maintenance box is moved to the working area by the push rod 21. When the partition 3 needs to be pulled out, the toggle block 16 is pressed in the direction of the box cover 7 by hand, thereby driving the clamping piece 13 to drive the rotating rod 12 to rotate in a circle with the fixed block 11 as a circle. The end of the clamping piece 13 that penetrates into the box cover 7 rotates into the box body 1, pushing the connecting rod 8 to move toward the bottom of the box body 1. Since the clamping piece 13 and the connecting rod 8 are connected by the rotating shaft 14, the connecting rod 8 can be kept parallel to the side wall of the box body 1. When the connecting rod 8 moves downward, the fixed rod 9 passes through the opening at the bottom end of the slot 6 to release the limit of the connecting rod 8 on the partition 3. At this time, the partition 3 can be pulled out. In the process of pressing the toggle block 16 in the direction of the box cover 7, the compression spring 17 can prevent the clamping piece 13 from excessive movement, causing the tension spring to be over-stretched and permanently deformed.

[0027] When it is necessary to limit the position of the re-pushed partition 3, the above-mentioned action is repeated first to lower the connecting rod 8 and the fixing rod 9 below the opening of the slot 6. After the partition 3 is pushed in, the toggle block 16 is released, and the clamping mechanism 10 can pull the rotating rod 12 downward under the elastic restoring action of the tension spring 15, so that the connecting end of the clamping part 13 and the connecting rod 8 drives the connecting rod 8 to lift upward, so that the fixing rod 9 passes through the opening of the slot 6, and the limiting of the partition 3 is completed.

Claims

1. A maintenance box for a steam turbine in a thermal power plant, comprising a box body and a box cover, characterized in that: The front end of the box body (1) is an open end. A plurality of layers of tracks (2) are arranged in the box body (1). Partitions (3) are arranged on the tracks (2). A front cover (4) is arranged at the front end of the partitions (3). A slope (5) is arranged at the rear end. A slot (6) with an opening facing downward is arranged on the slope (5). A connecting rod (8) is passed through the box cover (7). A fixing rod (9) matching the slot (6) is arranged on the connecting rod (8). A clamping mechanism (10) is arranged at the top of the connecting rod (8). The clamping mechanism (10) comprises a fixing block (11), a rotating rod (12), and a fixing rod (13). ) and a clamping member (13), the fixed block (11) is connected and fixed to the top surface of the box cover (7), a rotating shaft (14) is arranged at the top end of the fixed block (11) and is connected to the rotating rod (12), one end of the rotating rod (12) away from the fixed block (11) is connected to the arc-shaped clamping member (13), a tension spring (15) is arranged on the rotating rod (12) and is connected to the box cover (7), one end of the clamping member (13) away from the tension spring (15) is passed through the box cover (7), and the clamping member (13) and the connecting rod (8) are connected via the rotating shaft (14).

2. The maintenance box for a steam turbine in a thermal power plant according to claim 1, characterized in that: A toggle block (16) is provided on the clamping piece (13), a compression spring (17) is sleeved on the clamping piece (13) which is inserted into one end of the box cover (7), and the compression spring (17) is clamped between the toggle block (16) and the box cover (7).

3. The maintenance box for a steam turbine in a thermal power plant according to claim 1 or 2, characterized in that: The fixing block (11) and the tension spring (15) are both perpendicular to the box cover (7).

4. The maintenance box for a steam turbine in a thermal power plant according to claim 3, characterized in that: The connecting rods (8) are symmetrically arranged on both sides of the partition (3), the connecting rods (8) are parallel to the longitudinal axis of the box body (1), the fixing rods (9) are perpendicular to the connecting rods (8), and the fixing rods (9) are arranged toward the partition (3).

5. The maintenance box for a steam turbine in a thermal power plant according to claim 4, characterized in that: The top angle between the top surface of the compartment (3) and the inclined surface (5) is an acute angle.

6. The maintenance box for a steam turbine in a thermal power plant according to claim 5, characterized in that: A downward extending plate (18) is provided on the inclined surface (5), and a clamping groove (6) is provided between the extending plate (18) and the inclined surface (5).

7. The maintenance box for a steam turbine in a thermal power plant according to claim 6, characterized in that: The front cover (4) of the compartment (3) and the open end of the box body (1) are on the same plane, and a handle (19) is provided on the front cover (4).

8. The maintenance box for a steam turbine in a thermal power plant according to claim 7, characterized in that: The length of the connecting rod (8) is smaller than the depth of the box body (1).

9. The maintenance box for a steam turbine in a thermal power plant according to claim 7, characterized in that: A plurality of universal wheels (20) are arranged at the bottom of the box body (1), and a push rod (21) is arranged at the top of the box body (1).

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