Centrifugal pump guide vane machining tool

Abstract

The centrifugal pump guide vane machining tool comprises a machining table, a mounting cavity is formed in the machining table, a rotating shaft is rotationally inserted into the inner wall of the bottom of the mounting cavity, the top end of the rotating shaft is in key connection with a first gear, the bottom end of the rotating shaft is in key connection with a worm gear, and a plurality of rotating rods are rotationally inserted into the inner wall of the bottom of the mounting cavity. The outer wall of the rotating rod is in key connection with a second gear, the second gear is meshed with the first gear, the top end of the rotating rod penetrates through the top of the machining table to be fixedly connected with an eccentric roller, the center of the rotating rod and the center of the eccentric roller are eccentrically arranged, and the outer wall of the bottom of the machining table is fixedly connected with a mounting frame. According to the centrifugal pump guide vane clamping device, the rotating rod is driven to rotate under the meshing action of the worm and the worm wheel and the meshing action of the first gear and the second gear, so that the eccentric roller is driven to rotate, the eccentric roller extrudes the centrifugal pump guide vane, the centrifugal pump guide vane is evenly clamped, and the clamping stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of guide vane processing technology, and in particular to a tooling for processing centrifugal pump guide vanes. Background Technology

[0002] The guide vane is the energy conversion device of the centrifugal pump. Its function is to collect the liquid thrown out by the impeller, reduce the flow velocity of the liquid, convert part of the velocity energy head into pressure energy head, and then uniformly introduce it into the next stage or discharge it through the diffuser.

[0003] Existing centrifugal pump guide vane machining fixtures typically employ multiple independently controlled mechanisms to achieve the clamping function, which makes it difficult to guarantee the synchronization of clamping actions. This can lead to problems such as uneven clamping force and complex adjustments, affecting production efficiency and product quality. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing centrifugal pump guide vane machining fixtures, which typically employ multiple independently controlled mechanisms to achieve clamping functions. Therefore, this invention proposes a centrifugal pump guide vane machining fixture.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A centrifugal pump guide vane machining fixture includes a machining table with an installation cavity inside. A rotating shaft is rotatably inserted into the bottom inner wall of the installation cavity. A first gear is keyed to the top end of the rotating shaft, and a worm gear is keyed to the bottom end of the rotating shaft. Multiple rotating rods are rotatably inserted into the bottom inner wall of the installation cavity. A second gear is keyed to the outer wall of each rotating rod, and the second gear meshes with the first gear. An eccentric roller is fixedly connected to the top end of each rotating rod through the top of the machining table. The center of the rotating rod is eccentrically positioned with the center of the eccentric roller. A mounting frame is fixedly connected to the bottom outer wall of the machining table, and a worm gear is rotatably connected to the bottom inner wall of the mounting frame, meshing with a worm wheel.

[0007] Furthermore, the bottom inner wall of the mounting cavity is provided with multiple rotating grooves, in which the first gear and the second gear rotate.

[0008] Furthermore, a positioning rod is fixedly connected to the top outer wall of the processing table, and the positioning rod is located at the center of the top of the processing table.

[0009] Furthermore, a refueling pipe is inserted into one side of the processing table, one end of which is connected to the mounting cavity, and a sealing cap is threaded onto one end of the refueling pipe.

[0010] Furthermore, two electric push rods are fixedly connected to the bottom inner wall of the mounting bracket, a top plate is fixedly connected to the top of the two electric push rods, and multiple top rods are fixedly connected to the top of the top plate, with the top of the top rods protruding from the top of the processing table.

[0011] Furthermore, a wear-resistant pad is bonded to the outer circumference of the eccentric roller, and the outer surface of the wear-resistant pad is provided with anti-slip grooves.

[0012] Furthermore, a handle is fixedly connected to one end of the worm gear, and an anti-slip pad is adhered to the outer wall of the handle.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By the meshing of the worm and worm wheel and the meshing of the first gear and the second gear, the rotating rod is driven to rotate, thereby driving the eccentric roller to rotate. This causes the eccentric roller to squeeze the centrifugal pump guide vane, thus uniformly clamping the centrifugal pump guide vane and improving the clamping stability.

[0015] 2. By moving the top plate upward under the drive of the electric push rod, the push rod moves upward, thereby pushing the centrifugal pump guide vane away from the top of the processing table, making it easier to remove the centrifugal pump guide vane and thus facilitate the unloading of the centrifugal pump guide vane.

[0016] 3. By unscrewing the sealing cap, lubricating oil is added to the mounting cavity through the oil filling pipe, thereby lubricating the first gear and the second gear to ensure the rotation of the first gear and the second gear. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a centrifugal pump guide vane machining tooling proposed in this utility model;

[0018] Figure 2 This is a first cross-sectional view of a centrifugal pump guide vane machining tooling proposed in this utility model;

[0019] Figure 3 This is a second cross-sectional view of a centrifugal pump guide vane machining tooling proposed in this utility model;

[0020] Figure 4 This is an enlarged structural diagram of point A of the centrifugal pump guide vane machining tooling proposed in this utility model.

[0021] In the diagram: 1. Machining table; 2. First gear; 3. Second gear; 4. Rotating rod; 5. Eccentric roller; 6. Positioning rod; 7. Oil filling pipe; 8. Mounting bracket; 9. Electric push rod; 10. Top plate; 11. Push rod; 12. Rotating shaft; 13. Wear-resistant pad; 14. Worm gear; 15. Worm. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A centrifugal pump guide vane machining fixture includes a machining table 1 with an installation cavity inside. A rotating shaft 12 is rotatably inserted into the bottom inner wall of the installation cavity. A first gear 2 is keyed to the top end of the rotating shaft 12, and a worm gear 14 is keyed to the bottom end of the rotating shaft 12. Multiple rotating rods 4 are rotatably inserted into the bottom inner wall of the installation cavity. A second gear 3 is keyed to the outer wall of the rotating rod 4, and the second gear 3 meshes with the first gear 2. An eccentric roller 5 is welded to the top of the rotating rod 4 through the top of the machining table 1. The center of the rotating rod 4 and the center of the eccentric roller 5 are eccentrically positioned. A mounting bracket 8 is fixed to the bottom outer wall of the platform 1 by bolts. A worm gear 15 is rotatably connected to the bottom inner wall of the mounting bracket 8. The worm gear 15 meshes with the worm wheel 14. Tightening the worm gear 15, and then the worm gear 15 meshing with the worm wheel 14, drives the rotating shaft 12 to rotate, thereby driving the first gear 2 to rotate. Then, the first gear 2 meshing with the second gear 3 drives the rotating rod 4 to rotate, thereby driving the eccentric roller 5 to rotate. This causes the eccentric roller 5 to squeeze the centrifugal pump guide vane, thus stably clamping the centrifugal pump guide vane.

[0024] The bottom inner wall of the mounting cavity is provided with multiple rotating grooves, in which the first gear 2 and the second gear 3 rotate, thus facilitating the rotation limit of the first gear 2 and the second gear 3. A positioning rod 6 is welded to the top outer wall of the processing table 1, and the positioning rod 6 is located at the center of the top of the processing table 1, thus facilitating the positioning of the centrifugal pump guide vane. An oil filling pipe 7 is inserted into one side of the processing table 1. One end of the oil filling pipe 7 is connected to the mounting cavity, and a sealing cap is threaded onto one end of the oil filling pipe 7. By unscrewing the sealing cap, the oil filling pipe 7 adds lubricating oil into the mounting cavity, thereby lubricating the first gear 2 and the second gear 3. Two electric push rods 9 are fixed to the bottom inner wall of the mounting frame 8 by bolts, and the top ends of the two electric push rods 9 are fixed by bolts. There is a top plate 10, and multiple push rods 11 are welded to the top of the top plate 10. The top ends of the push rods 11 protrude from the top of the processing table 1. Driven by the electric push rod 9, the top plate 10 moves upward, thereby driving the push rods 11 to move upward, and thus pushing the centrifugal pump guide vane away from the top of the processing table 1, so as to facilitate the removal of the centrifugal pump guide vane. The outer circumferential wall of the eccentric roller 5 is bonded with a wear-resistant pad 13. The outer surface of the wear-resistant pad 13 is provided with an anti-slip groove. The wear-resistant pad 13 increases the wear resistance of the eccentric roller 5, and the design of the anti-slip groove increases the friction between the eccentric roller 5 and the centrifugal pump guide vane, improving the stability of the centrifugal pump guide vane clamping. One end of the worm gear 15 is welded with a handle, and the outer wall of the handle is bonded with an anti-slip pad, so as to facilitate the operation of the worm gear 15.

[0025] Working principle: In use, firstly, place the centrifugal pump guide vane on the top of the processing table 1, and fit the centrifugal pump guide vane onto the positioning rod 6, thus placing the centrifugal pump guide vane in the center position of the processing table 1. Then, turn the handle to drive the worm gear 15 to rotate. Under the action of the worm gear 15 meshing with the worm wheel 14, the rotating shaft 12 rotates, thereby driving the first gear 2 to rotate. Then, under the action of the first gear 2 meshing with the second gear 3, the rotating rod 4 rotates, thereby driving the eccentric roller 5 to rotate. This causes the eccentric roller 5 to squeeze the centrifugal pump guide vane, thus pressing the centrifugal pump... The guide vane is stably clamped, and then the centrifugal pump guide vane is processed. After processing, the handle is turned in the opposite direction to drive the worm 15 to rotate in the opposite direction. Under the action of the meshing of the worm 15 and the meshing of the first gear 2 and the second gear 3, the eccentric roller 5 is driven to rotate, thereby separating the eccentric roller 5 from the centrifugal pump guide vane. Then, the electric push rod 9 is started. Under the drive of the electric push rod 9, the top plate 10 moves upward, thereby driving the push rod 11 to move upward, and thus pushing the centrifugal pump guide vane away from the top of the processing table 1, so as to facilitate the removal of the centrifugal pump guide vane.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A machining tool for a guide vane of a centrifugal pump, comprising a machining table (1), characterized in that, The machining table (1) is provided with an installation cavity, a rotating shaft (12) is rotatably inserted into the bottom inner wall of the installation cavity, a first gear (2) is keyed to the top end of the rotating shaft (12), a worm wheel (14) is keyed to the bottom end of the rotating shaft (12), a plurality of rotating rods (4) are rotatably inserted into the bottom inner wall of the installation cavity, a second gear (3) is keyed to the outer wall of the rotating rod (4), the second gear (3) is engaged with the first gear (2), the top end of the rotating rod (4) is fixedly connected with an eccentric roller (5) penetrating through the top of the machining table (1), the center of the rotating rod (4) is eccentrically arranged with the center of the eccentric roller (5), the bottom outer wall of the machining table (1) is fixedly connected with a mounting bracket (8), the bottom inner wall of the mounting bracket (8) is transversely rotatably connected with a worm (15), and the worm (15) is engaged with the worm wheel (14).

2. The machining tool for the guide vane of the centrifugal pump according to claim 1, characterized in that, The bottom inner wall of the installation cavity is provided with a plurality of rotating grooves, and the first gear (2) and the second gear (3) rotate in the rotating grooves.

3. The machining tool for the guide vane of the centrifugal pump according to claim 1, characterized in that, The top outer wall of the machining table (1) is fixedly connected with a positioning rod (6), and the positioning rod (6) is located at the center position of the top of the machining table (1).

4. The machining tool for a guide vane of a centrifugal pump according to claim 1, wherein One end of the oil filling pipe (7) is communicated with the installation cavity, and the other end of the oil filling pipe (7) is threadedly sleeved with a sealing cover.

5. The machining tool for a guide vane of a centrifugal pump according to claim 1, wherein The bottom inner wall of the mounting bracket (8) is fixedly connected with two electric push rods (9), the top ends of the two electric push rods (9) are fixedly connected with a top plate (10), the top of the top plate (10) is fixedly connected with a plurality of top rods (11), and the top ends of the top rods (11) penetrate through the top of the machining table (1).

6. The machining tool for a guide vane of a centrifugal pump according to claim 1, wherein The circumferential outer wall of the eccentric roller (5) is bonded with a wear-resistant pad (13), and the outer surface of the wear-resistant pad (13) is provided with an anti-skid groove.

7. The machining tool for a guide vane of a centrifugal pump according to claim 1, wherein One end of the worm (15) is fixedly connected with a rotating handle, and the outer wall of the rotating handle is bonded with an anti-skid pad.

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