Impeller reinforcing structure and high-pressure fan

Abstract

The utility model relates to the technical field of high-pressure fan impellers, in particular to an impeller reinforcing structure and a high-pressure fan, which are characterized in that a supporting plate is arranged on the side face of an impeller body, impeller blades are arranged on the surface of the supporting plate, clamping plates are arranged on the side faces of the impeller blades, a supporting rod is arranged at the bottom of a reinforcing plate, and a bearing is arranged at one end of the supporting rod; a positioning screw rod is arranged on the inner ring surface of the bearing; the impeller reinforcing structure and the high-pressure fan have the advantages that when the impeller reinforcing structure and the high-pressure fan are used, when the high-pressure fan needs to be started to enable the impeller body to rotate, the reinforcing plates arranged on the side faces of the impeller blades can be matched with the supporting rods to support the side faces of the impeller blades, and the supporting effect on the side faces of the impeller blades can be achieved; the problem that when the impeller body rotates at a high speed, a single row of impeller blades may be broken is solved, and the service life of the high-pressure fan is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of high-pressure fan impellers, in particular to an impeller reinforcement structure and a high-pressure fan. Background Art

[0002] A high-pressure fan is a fan with a wind pressure of 30kPa to 200KPa or a compression ratio of e=1.3 to 3 under design conditions, also called a high-pressure blower. Its working principle is generally that when the impeller rotates, due to the centrifugal force, the wind vane causes the gas to move forward and outward, thus forming a series of spiral movements. Therefore, the impeller is the most important component of the high-pressure fan, and the processing design of the impeller directly affects the structure and quality of the high-pressure fan.

[0003] At present, the impellers of high-pressure fans on the market mainly adopt a single-row blade structure. This single-row blade structure produces a relatively large pressure loss and cannot produce extremely high pressure. When extremely high pressure is generated, it may cause the impeller blades to break.

[0004] To this end, the utility model proposes an impeller reinforcement structure and a high-pressure fan to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide an impeller reinforcement structure and a high-pressure fan to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: an impeller reinforcement structure, the impeller reinforcement structure comprising: an impeller body, a support plate is arranged on the side of the impeller body, an impeller blade is arranged on the surface of the support plate, and a clamping plate is arranged on the side of the impeller blade;

[0007] A reinforcing plate, a support rod is arranged at the bottom of the reinforcing plate, a bearing is arranged at one end of the support rod, and a positioning screw is arranged on the inner ring surface of the bearing.

[0008] Preferably, the support plate is an annular plate structure, the support plate is fixedly connected to the side of the impeller body, and the impeller blades are fixedly connected to the surface of the support plate.

[0009] Preferably, a support base is provided on the surface of the support plate, a fixing plate is provided on the side of the support base, the fixing plate is fixedly connected to the surface of the support plate by means of positioning bolts, and the support base is an arc-shaped plate-like structure as a whole.

[0010] Preferably, the support base surface is provided with threaded tubes, there are two groups of threaded tubes, and the two groups of threaded tubes are symmetrically distributed about the support base; the support base surface is provided with auxiliary rods, there are two groups of auxiliary rods, and the two groups of auxiliary rods are symmetrically distributed about the clamping plate.

[0011] Preferably, the clamping plate as a whole is an "L"-shaped plate structure, the clamping plate is fixedly connected to the side of the impeller blade, a nut is sleeved on the surface of the positioning screw, one end of the positioning screw can be threadedly connected to the inside of the threaded tube, and the other end of the positioning screw is fixedly connected to the inner ring surface of the bearing.

[0012] Preferably, a through hole and a second through hole are provided on the surface of the reinforcing plate, the auxiliary rod can be inserted into the through hole, and one end of the clamping plate can be clamped into the second through hole.

[0013] A high-pressure fan comprises the impeller reinforcement structure.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The impeller reinforcement structure and high-pressure fan proposed by the utility model can support the side of the impeller blade in cooperation with the support rod when it is necessary to start the high-pressure fan to rotate the impeller body during use. The side of the impeller blade can be supported by the reinforcement plate arranged on the side of the impeller blade to prevent the single-row impeller blade from breaking when the impeller body rotates at high speed, thereby increasing the service life of the high-pressure fan. In this way, the impeller body of the high-pressure fan mainly adopts a single-row blade structure, which produces a relatively large pressure loss and cannot produce extremely high pressure. When extremely high pressure is produced, it may cause the impeller blade to break. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model when the structure is tilted;

[0017] Figure 2 This is a side view of the structure of the utility model;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the structural support plate of the utility model.

[0020] In the figure: 1. impeller body; 2. support plate; 3. impeller blade; 4. clamping plate; 5. reinforcing plate; 6. support rod; 7. bearing; 8. positioning screw; 9. support base; 10. fixing plate; 11. threaded pipe;

[0021] 12. Auxiliary rod; 13. Through hole; 14. Second through hole; 15. Nut. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 4 The utility model provides a technical solution: an impeller reinforcement structure, the impeller reinforcement structure comprising: an impeller body 1, a support plate 2 is arranged on the side of the impeller body 1, an impeller blade 3 is arranged on the surface of the support plate 2, and a clamping plate 4 is arranged on the side of the impeller blade 3; a reinforcement plate 5, a support rod 6 is arranged at the bottom of the reinforcement plate 5, a bearing 7 is arranged at one end of the support rod 6, and a positioning screw 8 is arranged on the inner ring surface of the bearing 7;

[0025] During use, when it is necessary to start the high-pressure fan to rotate the impeller body 1, the reinforcing plate 5 arranged on the side of the impeller blade 3 can cooperate with the support rod 6 to support the side of the impeller blade 3, thereby providing a supporting effect on the side of the impeller blade 3 to prevent the single row of impeller blades 3 from breaking when the impeller body 1 rotates at high speed, thereby extending the service life of the high-pressure fan.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, in order to improve the strength of the impeller blade 3, a reinforcing plate 5 is provided, the support plate 2 is an annular plate structure, the support plate 2 is fixedly connected to the side of the impeller body 1, the impeller blade 3 is fixedly connected to the surface of the support plate 2, the clamping plate 4 is an "L"-shaped plate structure as a whole, the clamping plate 4 is fixedly connected to the side of the impeller blade 3, a nut 15 is sleeved on the surface of the positioning screw 8, one end of the positioning screw 8 can be screwed into the inside of the threaded tube 11, and the other end of the positioning screw 8 is fixedly connected to the inner ring surface of the bearing 7, a through hole 13 and a second through hole 14 are opened on the surface of the reinforcing plate 5, the auxiliary rod 12 can be inserted into the inside of the through hole 13, and one end of the clamping plate 4 can be clamped in the second through hole 14;

[0028] When in use, the support plate 2 can be used to support the impeller blade 3 first, and then the clamping plate 4 can be clamped into the second through hole 14, and the positioning screw 8 can be rotated to fix the reinforcing plate 5, so that the reinforcing plate 5 and the support rod 6 can support the side of the impeller blade 3. The setting of the auxiliary rod 12 can increase the supporting force on the side of the impeller blade 3, thereby increasing the strength of the impeller blade 3 to withstand force during operation. The clamping plate 4 cooperates with the second through hole 14 to make the reinforcing plate 5 fit the side of the impeller blade 3.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, in order to facilitate the disassembly of the reinforcing plate 5, a positioning screw 8 is provided, a support base 9 is provided on the surface of the support plate 2, a fixing plate 10 is provided on the side of the support base 9, and the fixing plate 10 is fixedly connected to the surface of the support plate 2 by means of positioning bolts. The support base 9 is an arc-shaped plate-like structure as a whole, a threaded tube 11 is provided on the surface of the support base 9, and two groups of threaded tubes 11 are provided, and the two groups of threaded tubes 11 are symmetrically distributed about the support base 9, and an auxiliary rod 12 is provided on the surface of the support base 9, and two groups of auxiliary rods 12 are provided, and the two groups of auxiliary rods 12 are symmetrically distributed about the clamping plate 4;

[0031] When the reinforcing plate 5 needs to be removed during use, the nut 15 can be first rotated so that the nut 15 cooperates with the bearing 7 to rotate the positioning screw 8, so that one end of the positioning screw 8 can be disengaged from the threaded tube 11, and then the reinforcing plate 5 can be easily pulled out from the auxiliary rod 12 and the clamping plate 4.

[0032] In actual use, when it is necessary to start the high-pressure fan to rotate the impeller body 1, the reinforcing plate 5 arranged on the side of the impeller blade 3 can cooperate with the support rod 6 to support the side of the impeller blade 3, and provide a supporting effect on the side of the impeller blade 3 to prevent the single-row impeller blade 3 from breaking when the impeller body 1 rotates at high speed, thereby increasing the service life of the high-pressure fan. In this way, the impeller body 1 of the high-pressure fan mainly adopts a single-row blade structure, which produces a relatively large pressure loss and cannot produce extremely high pressure. When extremely high pressure is generated, it may cause the impeller blade 3 to break.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An impeller reinforcement structure, characterized in that: The impeller reinforcement structure comprises: an impeller body (1), a support plate (2) is arranged on the side of the impeller body (1), an impeller blade (3) is arranged on the surface of the support plate (2), and a clamping plate (4) is arranged on the side of the impeller blade (3); A reinforcing plate (5) is provided at the bottom of the reinforcing plate (5), a bearing (7) is provided at one end of the support rod (6), and a positioning screw (8) is provided on the inner ring surface of the bearing (7).

2. The impeller reinforcement structure according to claim 1, characterized in that: The support plate (2) is an annular plate structure; the support plate (2) is fixedly connected to the side of the impeller body (1); and the impeller blades (3) are fixedly connected to the surface of the support plate (2).

3. The impeller reinforcement structure according to claim 1, characterized in that: A support base (9) is arranged on the surface of the support plate (2), a fixing plate (10) is arranged on the side of the support base (9), the fixing plate (10) is fixedly connected to the surface of the support plate (2) by means of positioning bolts, and the support base (9) is an arc-shaped plate structure as a whole.

4. The impeller reinforcement structure according to claim 3, characterized in that: The support base (9) is provided with a threaded tube (11) on its surface, wherein two groups of the threaded tubes (11) are provided and the two groups of the threaded tubes (11) are symmetrically distributed with respect to the support base (9); the support base (9) is provided with an auxiliary rod (12) on its surface, wherein two groups of the auxiliary rods (12) are provided and the two groups of the auxiliary rods (12) are symmetrically distributed with respect to the clamping plate (4).

5. The impeller reinforcement structure according to claim 1, characterized in that: The clamping plate (4) is an "L"-shaped plate structure as a whole. The clamping plate (4) is fixedly connected to the side of the impeller blade (3). A nut (15) is sleeved on the surface of the positioning screw (8). One end of the positioning screw (8) can be threadedly connected to the inside of the threaded tube (11), and the other end of the positioning screw (8) is fixedly connected to the inner ring surface of the bearing (7).

6. The impeller reinforcement structure according to claim 1, characterized in that: The reinforcing plate (5) is provided with a through hole (13) and a second through hole (14) on its surface. The auxiliary rod (12) can be inserted into the through hole (13), and one end of the clamping plate (4) can be clamped into the second through hole (14).

7. A high pressure fan, characterized in that: The impeller reinforcement structure comprises the impeller reinforcement structure described in any one of claims 1 to 6.

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