Hoop for impeller

Abstract

The hoop comprises a hoop body, the hoop body is provided with a mounting hole used for being matched with a wheel disc of the impeller, the hoop body is provided with an opening communicated with the mounting hole, and the inner wall of the mounting hole is provided with a ring block used for being matched with a ring groove of the impeller. Before the impeller is machined, the hoop body is arranged on the impeller in a sleeving mode, the impeller disc of the impeller is located in the mounting hole, and the ring block is clamped into the ring groove of the impeller, so that positioning between the hoop and the impeller is completed, then the well-positioned hoop and impeller are placed at the clamping mechanism, the clamping end of the clamping mechanism clamps the peripheral face of the hoop body, and the impeller is clamped through the clamping mechanism. And the hoop body applies force to the impeller, so that the impeller is clamped. The impeller is indirectly clamped through the hoop, and direct pressure on the surface of the wheel disc can be reduced in the mode, so that the damage risk is reduced, and the protection effect on the wheel disc is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of a ring hoop for an impeller, and in particular to a ring hoop for an impeller. Background Art

[0002] The impeller is a key component in rotating machinery such as turbines, pumps, and fans. It consists of a series of curved blades that are usually arranged symmetrically around a central axis. The main function of the impeller is to transfer energy from the shaft to the fluid, or vice versa, to extract energy from the fluid to drive the rotation of the shaft.

[0003] like Figure 1 As shown, the impeller 1 includes a wheel disc 11 and blades connected to the wheel disc 11. A ring groove 12 is provided on the side of the wheel disc 11 away from the blades. During the processing of the impeller, a clamping mechanism is required to clamp the wheel disc (the clamping mechanism can be a four-jaw chuck). Since the thickness of the wheel disc is relatively thin, the contact area between the clamping end of the clamping mechanism and the wheel disc is relatively small, and the wheel disc is easily damaged by pressure, which needs to be improved. Utility Model Content

[0004] The purpose of the present application is to provide a hoop for an impeller in order to protect the impeller disc.

[0005] The present application provides a ring hoop for an impeller, which adopts the following technical solution: it includes a ring hoop body, the ring hoop body is provided with a mounting hole for cooperating with the impeller disc of the impeller, the ring hoop body is provided with an opening connected to the mounting hole, and the inner wall of the mounting hole is provided with a ring block for cooperating with the ring groove of the impeller.

[0006] By adopting the above technical solution, before the impeller is processed, the hoop body is first sleeved on the impeller, the impeller disc is located in the mounting hole, and the ring block is clamped in the ring groove of the impeller, so as to complete the positioning between the hoop and the impeller, and then the positioned hoop and impeller are placed on the clamping mechanism, the clamping end of the clamping mechanism clamps the outer peripheral surface of the hoop body, and the hoop body applies force to the impeller, so as to achieve the impeller being clamped. The impeller is clamped indirectly through the hoop, which can reduce the direct pressure on the disc surface, thereby reducing the risk of damage and protecting the disc.

[0007] Optionally, the inner wall of the mounting hole is connected to a buffer pad for abutting against a wheel disc of an impeller.

[0008] By adopting the above technical solution, when the roulette wheel is clamped, the buffer pad can absorb the impact force and reduce the direct impact on the roulette wheel, thereby reducing the risk of injury and protecting the roulette wheel.

[0009] Optionally, the hoop body is provided with a mounting groove for cooperating with the buffer pad, and the mounting groove is connected to the mounting hole.

[0010] By adopting the above technical solution, the buffer pad is inserted into the installation groove, and the outer surface of the buffer pad is in contact with the inner wall of the installation groove. The inner wall of the installation groove restricts the movement of the buffer pad, thereby improving the stability of the buffer pad installed on the hoop body. When the buffer pad is damaged due to friction and needs to be replaced, it can be replaced by simply moving the buffer pad out of the installation groove.

[0011] Optionally, the buffer pad is connected to an active block, the hoop body is provided with a receiving groove for cooperating with the active block, the mounting groove, the opening and the mounting hole are all connected to the receiving groove, and one end of the active block is located at the opening.

[0012] By adopting the above technical solution, when the buffer pad needs to be moved out of the installation groove, it is only necessary to move one end of the active block located at the opening so that the active block is separated from the receiving groove, that is, the buffer pad is separated from the installation groove, thereby improving the disassembly efficiency of the buffer pad.

[0013] Optionally, the hoop body is connected to two first carrier plates, the opening is located between the two first carrier plates, and the first carrier plates are connected to a first fastening structure for driving the two first carrier plates to move toward each other.

[0014] By adopting the above technical solution, after the hoop body is sleeved on the impeller, the first fastening structure drives the two first carrier plates to move towards each other, so that the size of the opening becomes smaller, and the inner wall of the mounting hole clamps the impeller, thereby improving the installation stability between the hoop body and the impeller.

[0015] Optionally, the first fastening structure includes a bolt connected to the first carrier plate, a through hole for cooperating with the bolt, and a threaded hole for threadedly cooperating with the bolt, the through hole is arranged on one of the first carrier plates, and the threaded hole is arranged on the other first carrier plate.

[0016] By adopting the above technical solution, one end of the bolt first passes through the through hole and then is threadedly connected to the threaded hole, so that the two first carrier plates move toward each other, thereby achieving the inner wall of the mounting hole clamping the impeller.

[0017] Optionally, the first fastening structure includes a first threaded rod rotatably connected to one of the first carrier plates, a groove for the first threaded rod to be inserted into, and a fastening block threadedly connected to the first threaded rod, and the groove is arranged on the other first carrier plate.

[0018] By adopting the above technical solution, after the impeller and the hoop body are positioned, the first threaded rod is rotated so that the first threaded rod is stuck in the groove, and the fastening block is rotated so that the fastening block abuts against the corresponding first carrier plate and drives the first carrier plate to move toward the direction close to the other first carrier plate, thereby achieving the inner wall of the mounting hole clamping the impeller.

[0019] Optionally, there are two ring hoop bodies, and the two ring hoop bodies enclose the mounting hole and the two openings. Each of the ring hoop bodies is connected to two second carrier plates, and the second carrier plates are connected to a fastening assembly for driving the two ring hoop bodies to move toward each other.

[0020] By adopting the above technical solution, the impeller is placed between the two hoop bodies, and the fastening assembly drives the two hoop bodies to move toward each other, so that the inner wall of the mounting hole clamps the impeller.

[0021] Optionally, the fastening assembly includes a connecting plate and a second fastening structure connected to two of the second carriers, the two ends of the connecting plate are respectively rotatably connected to the other two second carriers, and the second fastening structure drives the corresponding two second carriers to move in a direction approaching each other.

[0022] By adopting the above technical solution, the two second carrier plates are connected together by the connecting plate, so that the unfolding range of the second carrier plates becomes larger, making it easier to insert the impeller disc of the impeller into the mounting hole.

[0023] Optionally, the second fastening structure includes a second threaded rod connected to one of the second carrier plates, a waist-shaped hole for the second threaded rod to pass through, and a nut threadedly connected to the second threaded rod, and the waist-shaped hole is arranged on the other second carrier plate.

[0024] By adopting the above technical solution, the second threaded rod is passed through the waist-shaped hole, and then the nut is rotated, so that the nut abuts against the corresponding second carrier plate and drives the second carrier plate to move toward the direction close to the other second carrier plate, so that the inner wall of the mounting hole clamps the impeller, thereby improving the installation stability between the hoop body and the impeller.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Before the impeller is processed, the hoop body is first placed on the impeller, the impeller disc is located in the mounting hole, and the ring block is inserted into the ring groove of the impeller, thereby completing the positioning between the hoop and the impeller, and then the positioned hoop and impeller are placed on the clamping mechanism, the clamping end of the clamping mechanism clamps the outer circumference of the hoop body, and the hoop body applies force to the impeller, so that the impeller is clamped. The impeller is clamped indirectly through the hoop, which can reduce the direct pressure on the disc surface, thereby reducing the risk of damage and protecting the disc.

[0027] 2. When the roulette wheel is clamped, the buffer pad can absorb the impact force and reduce the direct impact on the roulette wheel, thereby reducing the risk of injury and protecting the roulette wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the impeller.

[0029] Figure 2 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0030] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0031] Figure 4 yes Figure 3 A magnified image of area A.

[0032] Figure 5 It is a schematic diagram of the overall structure of Example 3 of the present application.

[0033] Figure 6 It is a schematic diagram of the overall structure of Example 4 of the present application.

[0034] Figure 7 yes Figure 6 Magnified view of area B.

[0035] Figure 8 It is a schematic diagram of the overall structure of Example 5 of the present application.

[0036] Fig. 9 yes Figure 8 Magnified view of region C.

[0037] Explanation of the reference numerals: 1. impeller; 11. wheel disc; 12. annular groove; 2. hoop body; 21. mounting hole; 22. opening; 23. ring block; 24. mounting groove; 25. accommodating groove; 26. first carrier plate; 261. cavity; 262. support rod; 27. second carrier plate; 3. buffer pad; 31. active block; 4. first fastening structure; 41. bolt; 42. first threaded rod; 43. groove; 44. fastening block; 5. fastening assembly; 51. connecting plate; 52. second fastening structure; 521. second threaded rod; 522. waist-shaped hole; 523. nut. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 -Attached Fig. 9 This application is described in further detail.

[0039] An embodiment of the present application discloses a hoop for an impeller.

[0040] like Figure 1As shown, it includes a hoop body 2, which is made of elastic material and can be elastically deformed. The hoop body 2 is annular, and the thickness of the hoop body 2 is thicker than the thickness of the impeller 11. The hoop body 2 is provided with a mounting hole 21 for matching with the impeller 11 of the impeller 1, and the hoop body 2 is provided with an opening 22 connected with the mounting hole 21. The inner wall of the mounting hole 21 is fixedly connected with a ring block 23 for matching with the annular groove 12 of the impeller 1, and the ring block 23 is integrally formed with the hoop body 2.

[0041] The implementation principle of a hoop for an impeller in the embodiment of the present application is:

[0042] Before the impeller 1 is processed, the hoop body 2 is first sleeved on the impeller 1, the impeller 1's wheel disc 11 is located in the mounting hole 21, and the ring block 23 is inserted into the ring groove 12 of the impeller 1, thereby completing the positioning between the hoop and the impeller 1, and then the positioned hoop and impeller 1 are placed on the clamping mechanism, the clamping end of the clamping mechanism clamps the outer peripheral surface of the hoop body 2, and the hoop body 2 applies force to the impeller 1, thereby achieving the clamping of the impeller 1. The impeller 1 is clamped indirectly through the hoop, which can reduce the direct pressure on the surface of the wheel disc 11, thereby reducing the risk of damage and protecting the wheel disc 11.

[0043] Example 2

[0044] The difference between this embodiment and embodiment 1 is that, Figure 3 and Figure 4 As shown, the hoop body 2 is detachably connected with a buffer pad 3 for contacting with the wheel disc 11 of the impeller 1. The buffer pad 3 is annular, and the hoop body 2 is provided with a mounting groove 24 for cooperating with the buffer pad 3, and the mounting groove 24 is communicated with the mounting hole 21. An active block 31 is fixedly connected to one end of the buffer pad 3, and the active block 31 is integrally formed with the buffer pad 3. The hoop body 2 is provided with a receiving groove 25 for cooperating with the active block 31, and the mounting groove 24, the opening 22 and the mounting hole 21 are all communicated with the receiving groove 25. One end of the active block 31 away from the buffer pad 3 protrudes out of the receiving groove 25 and is located at the opening 22.

[0045] Example 3

[0046] The difference between this embodiment and embodiment 1 is that Figure 5 As shown, the outer circumferential surface of the hoop body 2 is relatively fixedly connected with two first carrier plates 26, the two first carrier plates 26 are integrally formed with the hoop body 2, the opening 22 is located between the two first carrier plates 26, the first carrier plates 26 are connected with a first fastening structure 4 for driving the two first carrier plates 26 to move toward each other, the first fastening structure 4 includes a bolt 41 connected to the first carrier plates 26, a through hole for matching with the bolt 41 and a threaded hole for threadedly matching with the bolt 41, the through hole is opened on one of the first carrier plates 26, and the threaded hole is opened on the other first carrier plate 26.

[0047] Example 4

[0048] The difference between this embodiment and embodiment 3 is that, Figure 6 and Figure 7 As shown, a cavity 261 is provided on one side of the first carrier plate 26 away from the hoop body 2, a support rod 262 is fixedly connected to the inner wall of the cavity 261, and the first fastening structure 4 includes a first threaded rod 42 rotatably connected to the support rod 262, a groove 43 for the first threaded rod 42 to be inserted, and a fastening block 44 threadedly connected to the first threaded rod 42, and the groove 43 is provided on the side of the other first carrier plate 26 away from the hoop body 2. When the first threaded rod 42 is inserted into the groove 43, the groove 43 is located between the fastening block 44 and the cavity 261.

[0049] Example 5

[0050] The difference between this embodiment and embodiment 1 is that, Figure 8 and Fig. 9 As shown, there are two hoop bodies 2, and the two hoop bodies 2 enclose a mounting hole 21 and two openings 22. The mounting hole 21 is located between the two openings 22, and the two openings 22 are both connected to the mounting hole 21. Two second carriers 27 are fixedly connected to the outer surface of each hoop body 2, and the two second carriers 27 are respectively located at the two ends of the hoop body 2. The second connecting plate 51 is connected with a fastening assembly 5 for driving the two hoop bodies 2 to move toward each other. The fastening assembly 5 includes a connecting plate 51 and a second fastening structure 52 connected to two of the second carriers 27. The two ends of the connecting plate 51 are respectively rotatably connected to the other two second carriers 27. The second fastening structure 52 includes a second threaded rod 521 fixedly connected to one of the second carriers 27, a waist-shaped hole 522 for the second threaded rod 521 to pass through, and a nut 523 connected to the second threaded rod 521. The waist-shaped hole 522 is opened on the other second carrier 27.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hoop for an impeller, characterized in that: The invention comprises a hoop body (2), the hoop body (2) being provided with a mounting hole (21) for cooperating with a wheel disc (11) of an impeller (1), the hoop body (2) being provided with an opening (22) communicating with the mounting hole (21), and the inner wall of the mounting hole (21) being provided with a ring block (23) for cooperating with a ring groove (12) of the impeller (1).

2. The ring hoop for an impeller according to claim 1, characterized in that: The inner wall of the mounting hole (21) is connected to a buffer pad (3) for abutting against the wheel disc (11) of the impeller (1).

3. The hoop for an impeller according to claim 2, characterized in that: The hoop body (2) is provided with a mounting groove (24) for cooperating with the buffer pad (3), and the mounting groove (24) is communicated with the mounting hole (21).

4. The hoop for an impeller according to claim 3, characterized in that: The buffer pad (3) is connected to an active block (31), the hoop body (2) is provided with a receiving groove (25) for cooperating with the active block (31), the mounting groove (24), the opening (22) and the mounting hole (21) are all in communication with the receiving groove (25), and one end of the active block (31) is located at the opening (22).

5. The hoop for an impeller according to claim 1, characterized in that: The hoop body (2) is connected to two first carrier plates (26), the opening (22) is located between the two first carrier plates (26), and the first carrier plates (26) are connected to a first fastening structure (4) for driving the two first carrier plates (26) to move in a direction toward each other.

6. The hoop for an impeller according to claim 5, characterized in that: The first fastening structure (4) comprises a bolt (41) connected to the first carrier plate (26), a through hole for cooperating with the bolt (41) and a threaded hole for threadedly cooperating with the bolt (41), the through hole being arranged on one of the first carrier plates (26) and the threaded hole being arranged on the other of the first carrier plates (26).

7. The hoop for an impeller according to claim 5, characterized in that: The first fastening structure (4) comprises a first threaded rod (42) rotatably connected to one of the first carrier plates (26), a groove (43) for the first threaded rod (42) to be snapped in, and a fastening block (44) threadedly connected to the first threaded rod (42), wherein the groove (43) is arranged on another of the first carrier plates (26).

8. The hoop for an impeller according to claim 1, characterized in that: There are two hoop bodies (2), the two hoop bodies (2) enclose the mounting hole (21) and the two openings (22), each of the hoop bodies (2) is connected to two second carrier plates (27), and the second carrier plates (27) are connected to a fastening assembly (5) for driving the two hoop bodies (2) to move in a direction toward each other.

9. The hoop for an impeller according to claim 8, characterized in that: The fastening assembly (5) comprises a connecting plate (51) and a second fastening structure (52) connected to two of the second carrier plates (27); two ends of the connecting plate (51) are respectively rotatably connected to the other two second carrier plates (27); and the second fastening structure (52) drives the corresponding two second carrier plates (27) to move in a direction approaching each other.

10. The hoop for an impeller according to claim 9, characterized in that: The second fastening structure (52) comprises a second threaded rod (521) connected to one of the second carrier plates (27), a waist-shaped hole (522) for the second threaded rod (521) to pass through, and a nut (523) threadedly connected to the second threaded rod (521), wherein the waist-shaped hole (522) is arranged on another of the second carrier plates (27).

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