A core pulling tool for a water pump of a thermal power plant

Abstract

The utility model belongs to the technical field of thermal power plant water pump, concretely relates to a core pulling tool of thermal power plant water pump, include: bearing seat, the top of bearing seat is provided with the chute, sliding clamping part, sliding clamping part slidingly sets up in the chute, is used for clamping water pump, push assembly, push assembly is penetrated in the inside of sliding clamping part, water pump support base, water pump support base sets up in the top of bearing seat away from the chute, and position is opposite with sliding clamping part, is used for supporting water pump, adjusting assembly, adjusting assembly sets up in the bottom of bearing seat, and is connected with water pump support base through screw thread, drive assembly, drive assembly sets up in the bottom of bearing seat, and output and adjusting assembly rotation is connected. The utility model has solved the problem that only single size water pump can be accommodated by the existing core pulling tool, and has solved the problem that different size water pumps cannot be cored due to the lack of adjustable positioning clamping assembly.

Description

Technical Field

[0001] This utility model belongs to the field of thermal power plant water pump technology, specifically relating to a core-pulling tool for thermal power plant water pumps. Background Technology

[0002] In the main feedwater pumps of the generator set, both the pressure stage pump and its booster pump adopt a single-stage, double-suction, casing-type centrifugal pump structure. To facilitate equipment troubleshooting and preventative maintenance, core cartridge removal is necessary. However, improper control during core cartridge removal can easily lead to core cartridge jamming due to uneven force or displacement deviation, causing damage to components such as the impeller and bushing.

[0003] The existing device can perform core extraction, but the support can only accommodate a single-size water pump. At the same time, due to the lack of adjustable positioning and clamping components, it cannot be matched with water pumps of various sizes, making it difficult to meet diverse maintenance scenarios. Utility Model Content

[0004] The purpose of this utility model is to provide a core-pulling tool for thermal power plant water pumps that can accommodate water pumps of different sizes and also provides an adjustable positioning clamping tool.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A core-removing tool for a thermal power plant water pump, comprising:

[0007] A support base, wherein a groove is provided on the top of the support base;

[0008] A sliding clamping part is slidably disposed in a sliding groove for clamping a water pump;

[0009] A pushing component extends through the interior of the sliding clamping portion;

[0010] A water pump support is provided at the top of the bearing seat away from the slide groove and is positioned opposite the sliding clamping part to support the water pump.

[0011] An adjustment assembly is disposed at the bottom of the bearing seat and is connected to the water pump support seat by a thread;

[0012] A drive assembly is disposed at the bottom of the support base, and its output end is rotatably connected to the adjustment assembly;

[0013] During operation, the drive component drives the adjustment component to rotate and adjust the position of the water pump support, pushing the sliding clamping part to move closer to the water pump. After the sliding clamping part clamps the water pump, the drive component is controlled to push the water pump core to move out of the water pump, thus completing the core extraction.

[0014] Furthermore, the sliding clamping part includes:

[0015] The mounting block is slidably disposed within the slide groove;

[0016] Connecting plates, which are symmetrically connected to both sides of the mounting block;

[0017] A positioning component is provided, which is located in the slide rails opened on both sides of the bearing seat, and one end is connected to the connecting plate.

[0018] Furthermore, the actuating assembly includes a actuating screw and an actuating head, wherein the end of the actuating screw near the water pump support is connected to the actuating head.

[0019] Furthermore, the positioning component includes: a slider, a threaded seat, and a positioning screw; the slider is disposed in the slide rail, and its two sliding sides are respectively connected to the threaded seat and the connecting plate; the positioning screw passes through the threaded seat, and one end of the positioning screw extends towards the bearing seat, with the extended end cooperating with the positioning hole provided on the side of the positioning screw.

[0020] Furthermore, the adjustment assembly includes: an adjustment housing and a bidirectional threaded rod and an adjustment bevel gear inside the adjustment housing; the adjustment bevel gear is fixed to the outer surface of the bidirectional threaded rod, and the bidirectional threaded rod is threadedly connected to the water pump support.

[0021] Furthermore, the drive assembly includes: a drive housing and a drive motor and a drive bevel gear inside the drive housing; the output end of the drive motor is fixedly connected to the drive bevel gear, and the drive bevel gear meshes with an adjusting bevel gear.

[0022] Furthermore, it also includes a top plate, which is disposed on the side of the support seat away from the slide groove, and an opening is provided at the center of the top plate surface.

[0023] Furthermore, the bottom of the water pump support is provided with two connecting blocks, which are respectively connected to the bidirectional threaded rod in different directions.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This invention achieves core extraction of a water pump core by separately slidably mounting a sliding clamping part and an adjustable-sized water pump support base on a support base. Specifically, the sliding clamping part has a pushing component inside for aligning the core, and an adjusting component driven by a drive component is located at the bottom of the support base, allowing the water pump support base to be adjusted to support water pumps of different sizes. When the water pump is placed on the support base, the sliding clamping part drives the pushing component to move closer to the water pump. After the sliding clamping part clamps the water pump, the pushing component pushes the water pump core outward, completing the core extraction. Unlike existing core extraction tools, this structure solves the problem of accommodating water pumps of different sizes. Furthermore, by providing an adjustable clamping and positioning component, this structure ensures that different water pumps can be used with this structure. Attached Figure Description

[0026] Figure 1 This is a front view of the present utility model;

[0027] Figure 2 This is a side sectional view of the present invention;

[0028] Figure 3 This is a partial cross-sectional view of the present invention;

[0029] Figure 4 This is a cross-sectional view of the adjustment component of this utility model.

[0030] In the diagram: 1. Bearing seat; 2. Positioning assembly; 21. Slider; 22. Threaded seat; 23. Positioning screw; 3. Positioning hole; 4. Connecting plate; 5. Mounting block; 6. Pushing assembly; 61. Pushing screw; 62. Pushing head; 7. Adjusting assembly; 70. Adjusting housing; 71. Bidirectional threaded rod; 72. Adjusting bevel gear; 8. Drive assembly; 80. Drive housing; 81. Drive motor; 82. Drive bevel gear; 9. Water pump support seat; 10. Top plate. Detailed Implementation

[0031] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0032] like Figures 1-4In this embodiment, it includes: a support base 1, a mounting block 5, a pushing component 6, a connecting plate 4, a positioning component 2, a water pump support base 9, an adjusting component 7, and a driving component 8;

[0033] The top of the support seat 1 is provided with a sliding groove, and the opposite sides are provided with sliding tracks. The mounting block 5 is slidably installed in the sliding groove, and the positioning component 2 is set in the sliding track and connected to the mounting block through the connecting plate 4.

[0034] It should be noted that the slide of the bearing seat 1 is provided with positioning holes 3 arranged in a linear array in the direction of movement of the sliding block 5; the positioning component 2 includes: slider 21, threaded seat 22 and positioning screw 23; the slider 21 is disposed in the slide, and both sides of the slider 21 are connected to the threaded seat 22 and the connecting plate 4 respectively; the positioning screw 23 passes through the threaded seat 22, and one end of the positioning screw 23 extends towards the bearing seat 1, and the extended end cooperates with the positioning hole 3 provided on the side of the positioning screw 23;

[0035] Specifically, after the mounting block 5 reaches the designated position of the water pump, the positioning screw 23 rotates and engages with the positioning hole 3, thereby fixing the mounting block 5 and the bearing seat 1 together.

[0036] The drive component 6 is installed through the interior of the mounting block 5;

[0037] It should be noted that the pushing component 6 includes: a pushing screw 61 and a pushing head 62. The end of the pushing screw 61 near the water pump support 9 is connected to the pushing head 62, and the central axis of the pushing screw 61 is collinear with the core axis of the water pump.

[0038] Specifically, when it is necessary to push the core, the push screw 61 is rotated to drive the push head 62 to move closer to the core, and finally the push head 62 completes the core pulling work;

[0039] The water pump support 9 is located on the top of the bearing seat 1 away from the slide groove, and is positioned opposite the mounting block 5.

[0040] It should be noted that the bottom of the water pump support 9 is provided with two connecting blocks, and the direction of movement of the connecting blocks is perpendicular to the axis of the push screw 61.

[0041] Specifically, by applying external force to the two connecting blocks, the two connecting blocks move in opposite directions or towards each other, thereby expanding or shrinking the accommodating space of the water pump support 9 to accommodate water pumps of different sizes.

[0042] The adjusting component 7 is located at the bottom of the bearing seat 1 and is connected to the water pump support seat 9 by a thread;

[0043] It should be noted that the adjustment component 7 includes: an adjustment housing 70 and a bidirectional threaded rod 71 and an adjustment bevel gear 72 inside the adjustment housing 70; the adjustment bevel gear 72 is fixed on the outer surface of the bidirectional threaded rod 71, and the bidirectional threaded rod 71 is connected to the water pump support 9 by threads, wherein the bidirectional threaded rod 71 is divided into two parts with its rod center as the boundary, and the thread directions of the two parts are opposite.

[0044] Specifically, the two parts of the bidirectional threaded rod 71 are threadedly connected to the two connecting blocks of the water pump support 9. When the adjusting bevel gear 72 drives the bidirectional threaded rod 71 to rotate, the two connecting blocks will move along the axial direction of the bidirectional threaded rod 71, thereby adjusting the accommodating space of the water pump support 9.

[0045] The drive assembly 8 is located at the bottom of the support 1, and its output end is rotatably connected to the adjustment assembly 7;

[0046] It should be noted that the drive assembly 8 includes: a drive housing 80 and a drive motor 81 and a drive bevel gear 82 inside the drive housing 80; the output end of the drive motor 81 is fixedly connected to the drive bevel gear 82, and the drive bevel gear 82 meshes with the adjusting bevel gear 72;

[0047] Specifically, after the drive motor 81 starts, its output end drives the drive bevel gear 82 to rotate, causing the meshing adjustment bevel gear 72 to rotate, ultimately completing the work of adjusting the water pump support 9.

[0048] In this embodiment, it also includes: a top plate 10, which is disposed on the side of the support seat 1 away from the slide groove, and an opening is provided at the center of the plate surface of the top plate 10;

[0049] Specifically, by setting the top plate 10, the core of the water pump falls out of the opening in the top plate 10 when it is pushed out.

[0050] Working principle:

[0051] First, the adjusting component 7 is activated by the driving component 8. The driving motor 81 drives the driving bevel gear 82 to rotate, which in turn drives the adjusting bevel gear 72 to rotate. The adjusting bevel gear 72 drives the two connecting blocks of the water pump support 9 to move along the axis of the bidirectional threaded rod 71 through the bidirectional threaded rod 71, thereby adjusting the accommodating space of the water pump support 9 and ensuring that the water pump support can accommodate water pumps of different sizes.

[0052] Next, after adjusting the water pump support 9 and placing the water pump, the mounting block 5 slides to the designated position of the water pump via the push screw 61 and push head 62 in the push assembly 6. At this time, the positioning screw 23 rotates and engages with the positioning hole 3 on the bearing seat 1 to ensure that the mounting block 5 is firmly positioned with the bearing seat 1, thus completing the precise positioning of the mounting block.

[0053] Finally, by pushing component 6 to rotate, the screw 61 is pushed, and the push head 62 is pushed into the water pump core. Finally, the core falls smoothly from the opening on the top plate 10, ensuring the smooth operation process.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A core-pulling tool for a water pump in a thermal power plant, characterized in that, include: The support seat (1) has a groove on its top; A sliding clamping part is slidably disposed in a sliding groove for clamping a water pump; A pushing component (6) extends through the interior of the sliding clamping part; A water pump support (9) is provided on the top of the bearing seat (1) away from the slide groove and is positioned opposite to the sliding clamping part for supporting the water pump. Adjustment component (7), which is disposed at the bottom of the bearing seat (1) and is connected to the water pump support seat (9) by a thread; The drive assembly (8) is disposed at the bottom of the support base (1) and its output end is rotatably connected to the adjustment assembly (7); During operation, the drive component (8) drives the adjustment component (7) to rotate and adjust the position of the water pump support (9), pushing the sliding clamping part to move closer to the water pump. After the sliding clamping part clamps the water pump, the control push component (6) pushes the core of the water pump to move out of the water pump to complete the core extraction.

2. The core-pulling tool for a thermal power plant water pump according to claim 1, characterized in that, The sliding clamping part includes: Mounting block (5), which is slidably disposed in the groove; Connecting plate (4), which is symmetrically connected to both sides of mounting block (5); Positioning component (2) is set in the slides opened on both sides of the bearing seat (1) and one end is connected to the connecting plate (4).

3. The core-pulling tool for a thermal power plant water pump according to claim 2, characterized in that, The pushing assembly (6) includes a pushing screw (61) and a pushing head (62), wherein the end of the pushing screw (61) near the water pump support (9) is connected to the pushing head (62).

4. The core-pulling tool for a thermal power plant water pump according to claim 3, characterized in that, The positioning component (2) includes: a slider (21), a threaded seat (22) and a positioning screw (23); the slider (21) is set in the slide rail, and the two sides of the slider (21) are connected to the threaded seat (22) and the connecting plate (4) respectively. The positioning screw (23) passes through the threaded seat (22), and one end of the positioning screw (23) extends towards the bearing seat (1), and the extended end cooperates with the positioning hole (3) provided on the side of the positioning screw (23).

5. The core-pulling tool for a thermal power plant water pump according to claim 4, characterized in that, The adjustment assembly (7) includes: an adjustment housing (70) and a bidirectional threaded rod (71) and an adjustment bevel gear (72) inside the adjustment housing (70); the adjustment bevel gear (72) is fixed on the outer surface of the bidirectional threaded rod (71), and the bidirectional threaded rod (71) is connected to the water pump support (9) by a thread.

6. The core-pulling tool for a thermal power plant water pump according to claim 5, characterized in that, The drive assembly (8) includes: a drive housing (80) and a drive motor (81) and a drive bevel gear (82) inside the drive housing (80); the output end of the drive motor (81) is fixedly connected to the drive bevel gear (82), and the drive bevel gear (82) meshes with the adjusting bevel gear (72).

7. The core-pulling tool for a thermal power plant water pump according to claim 2, characterized in that, Also includes: The top plate (10) is located on the side of the bearing seat (1) away from the slide groove, and the top plate (10) has an opening at the center of its surface.

8. The core-pulling tool for a thermal power plant water pump according to claim 5, characterized in that, The bottom of the water pump support (9) is provided with two connecting blocks, which are respectively connected to the bidirectional threaded rod (71) in different directions.

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