Backward type industrial centrifugal fan impeller

Abstract

The utility model provides a backward type industrial centrifugal fan impeller which comprises an installation disc and an installation shaft, a plurality of impeller blades are arranged on the surface of the installation disc, an adjusting pipe is arranged in the middle of the installation disc, two installation grooves corresponding to each other are formed in one end of the adjusting pipe, an installation block is arranged on the inner wall of each installation groove, and the installation shaft is arranged on the installation disc. A mounting cavity is formed in each mounting block, and first limiting grooves are formed in the corresponding sides of the two mounting blocks; the device has the advantages that the mounting disc can freely move in the direction of the sliding groove through the mounting block, the sliding groove provides guidance for movement of the mounting block, a worker can pull the pull block to retract the limiting block into the mounting cavity in the moving process, and when the limiting block is adjusted to a proper range, the pull block is loosened, and the limiting block is moved to the mounting cavity. And under the cooperation of a reset spring, a limiting block can be upwards ejected out and clamped into a second limiting groove, so that position adjustment of the backward industrial centrifugal fan impeller is completed, and the backward industrial centrifugal fan impeller can conveniently adapt to different scenes and installation requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of fan impellers, in particular to a backward-facing industrial fan impeller. Background Art

[0002] Centrifugal fans are widely used ventilation equipment in the industrial field. Their performance is directly related to the comfort and production efficiency of the industrial production environment. With the continuous advancement of industrial technology, the performance requirements for centrifugal fans are getting higher and higher. Traditional centrifugal fan impeller designs often have problems such as poor aerodynamic performance and high energy consumption. Therefore, a backward-facing industrial centrifugal fan impeller is needed;

[0003] Among them, the "a centrifuge impeller" disclosed in the application number "CN201920498065.1" is also an increasingly mature technology, including an impeller structure and a connecting structure, the impeller structure is composed of a rear impeller plate, a front impeller disc and a plurality of blades, the rear impeller plate and the front impeller disc are placed opposite to each other, both ends of the blades are provided with mounting shafts, the end surface edges of the rear impeller plate and the front impeller disc are evenly provided with a plurality of mounting holes, the blades are all located between the rear impeller plate and the front impeller disc, the mounting shaft passes through the mounting holes of the end surfaces of the rear impeller plate and the front impeller disc respectively, the beneficial effect achieved by the utility model is: the centrifuge impeller can be removed by rotating the hexagonal nut, and then the connecting rod and the blades can be removed in turn, the blade replacement is very convenient, and the maintenance cost is low, the blades, the connecting rod, the rear impeller plate and the front impeller disc can be produced separately and then assembled, and the production efficiency is faster;

[0004] However, the above method still has the following defects in actual use: the impeller structure and the drive shaft are fixedly installed, and the position of the impeller cannot be adjusted according to actual application requirements, which is inconvenient to adapt to different usage scenarios and installation requirements. At the same time, excessive temperature can easily affect the service life of the impeller, and there is no improvement in the heat dissipation efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a backward-facing industrial centrifugal fan impeller, the position of which can be freely adjusted after installation and which has good heat dissipation efficiency.

[0006] The utility model provides a backward-facing industrial centrifugal fan impeller, comprising a mounting plate and a mounting shaft, wherein the surface of the mounting plate is provided with impeller blades, and a plurality of impeller blades are provided, an adjusting tube is provided in the middle of the mounting plate, and one end of the adjusting tube is provided with two mounting grooves corresponding to each other, the inner wall of each mounting groove is provided with a mounting block, the interior of each mounting block is provided with a mounting cavity, the corresponding sides of the two mounting blocks are provided with a first limiting groove, the inner wall of each of the first limiting grooves is slidably matched with the limiting block, the back of each of the limiting blocks is provided with a first connecting plate, the back of each of the first connecting plates is provided with a guide rod, the surface of each of the mounting cavities is provided with a limiting mechanism for providing support force for the first connecting plate, and the back of the mounting plate is provided with a heat dissipation component.

[0007] In a possible embodiment, each of the limiting mechanisms includes a connecting ring, a reset spring and a support plate, the connecting ring is arranged on the surface of the first connecting plate, one end of the connecting ring is connected to the reset spring, the support plate is arranged on one side of the mounting cavity surface, and the other end of the reset spring is connected to the surface of the support plate.

[0008] In a possible implementation manner, each of the return springs is disposed outside the corresponding guide rod, and a guide hole for slidingly cooperating with the guide rod is provided in the middle of the support plate.

[0009] In a possible implementation, a positioning block is disposed at one end of each guide rod, a positioning groove slidably matched with the positioning block is formed on the back of each mounting block, and a pulling block is disposed at one end of each positioning block.

[0010] In a possible embodiment, the heat dissipation assembly includes a connecting groove, a mounting ring and a heat dissipation copper tube. The connecting groove is opened in the middle of the back side of the mounting plate. The internal thread of the connecting groove is connected to the mounting ring. The surface of the mounting ring is provided with a heat dissipation copper tube for heat dissipation.

[0011] In a possible implementation, a thermal grease layer is provided on the side of the heat dissipating copper tube, and the surface of the thermal grease layer is in contact with the back surface of the mounting plate.

[0012] In a possible implementation manner, a protective plate is provided at the top end of the wheel piece.

[0013] In a possible embodiment, sliding grooves are provided on both sides of the installation shaft, the surfaces of the two installation blocks are respectively slidably matched with the inner walls of the sliding grooves, a second limit groove for limiting the movement of the limit block is provided in the middle of the inner wall of each sliding groove, and a threaded groove is provided at one end of the installation shaft.

[0014] Compared with the related art, the backward-facing industrial fan impeller provided by the utility model has the following beneficial effects:

[0015] 1. In order to facilitate the free adjustment of the position of the impeller of the backward-type industrial centrifugal fan after installation, the installation plate can be freely moved along the direction of the slide groove through the installation block. The slide groove provides guidance for the movement of the installation block. During the movement, the staff can pull the pull block to retract the limit block into the installation cavity. When it is adjusted to the appropriate range, release the pull block. With the cooperation of the reset spring, the limit block can be pushed upward and stuck into the second limit groove, thereby completing the position adjustment of the backward-type industrial centrifugal fan impeller, which is convenient to adapt to different scenarios and installation requirements, and the installation adjustment is more flexible;

[0016] 2. In order to improve the heat dissipation effect of the backward-facing industrial fan impeller, the thermal grease layer has good thermal conductivity. The heat of the mounting plate can be transferred to the surface of the heat dissipation copper tube through the thermal grease layer, thereby accelerating the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the mounting block of the utility model;

[0020] Figure 4 It is an enlarged structural schematic diagram of the heat dissipation component of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the installation shaft of the utility model.

[0022] In the figure: 1. mounting plate; 2. impeller blade; 21. protective plate; 3. adjusting tube; 4. mounting shaft; 401. slide groove; 402. second limit groove; 403. threaded groove; 5. mounting groove; 6. mounting block; 61. mounting cavity; 62. first limit groove; 63. limit block; 64. first connecting plate; 65. guide rod; 651. positioning block; 652. pull block; 66. connecting ring; 661. reset spring; 662. support plate; 9. heat dissipation assembly; 901. connecting groove; 902. mounting ring; 903. heat dissipation copper tube; 904. thermal grease layer. DETAILED DESCRIPTION

[0023] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0024] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0025] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] See also Figure 1-5 As shown, the embodiment of the present application discloses a backward-facing industrial centrifugal fan impeller, including a mounting plate 1 and a mounting shaft 4, an impeller blade 2 is fixedly provided on the surface of the mounting plate 1, and the impeller blade 2 is provided in plurality, an adjusting tube 3 is fixedly provided on the middle part of the mounting plate 1, and the position of the mounting plate 1 can be adjusted by moving the adjusting tube 3, one end of the adjusting tube 3 is provided with two mounting grooves 5 corresponding to each other, the inner wall of each mounting groove 5 is fixedly provided with a mounting block 6, and the interior of each mounting block 6 is provided with a mounting cavity 61, and the corresponding sides of the two mounting blocks 6 are provided with a first limiting groove 62, and the inner wall of each first limiting groove 62 is slidably matched with a limiting block 63, and the back of each limiting block 63 is fixedly provided with a first connecting plate 64, and the back of each first connecting plate 64 is fixedly provided with a guide rod 65, and the surface of each mounting cavity 61 is provided with a limiting mechanism for providing support force for the first connecting plate 64, and a heat dissipation component 9 is provided on the back of the mounting plate 1; the heat dissipation efficiency of the mounting plate 1 is improved by the heat dissipation component 9

[0028] Each limiting mechanism includes a connecting ring 66, a return spring 661 and a support plate 662. The connecting ring 66 is fixedly arranged on the surface of the first connecting plate 64. One end of the connecting ring 66 is connected to the return spring 661. The support plate 662 is fixedly arranged on one side of the surface of the mounting cavity 61. The other end of the return spring 661 is connected to the surface of the support plate 662. The return spring 661 converts the elastic force into support for the first connecting plate 64, thereby providing an upward supporting force for the extended limiting block 63.

[0029] Each return spring 661 is placed outside the corresponding guide rod 65 , and a guide hole for cooperating with the sliding of the guide rod 65 is opened in the middle of the support plate 662 ; the guide hole is used to cooperate with the extension and contraction of the guide rod 65 .

[0030] A positioning block 651 is fixedly provided at one end of each guide rod 65, and a positioning groove that is slidably matched with the positioning block 651 is provided on the back of the mounting block 6. A pull block 652 is fixedly provided at one end of each positioning block 651; the staff can pull the pull block 652 to drive the guide rod 65 connected thereto and the first connecting plate 64 to move synchronously, and the limit block 63 can be retracted into the mounting cavity 61 under the connection of the first connecting plate 64, so that the adjusting tube 3 can be moved.

[0031] The heat dissipation component 9 includes a connecting groove 901, a mounting ring 902 and a heat dissipation copper tube 903. The connecting groove 901 is opened in the middle of the back side of the mounting plate 1. The internal thread of the connecting groove 901 is connected to the mounting ring 902. The surface of the mounting ring 902 is fixedly provided with a heat dissipation copper tube 903 for heat dissipation. The contact area with the airflow is increased by the heat dissipation copper tube 903. At the same time, the heat dissipation copper tube 903 has good heat dissipation performance. The heat dissipation copper tube 903 is threadedly connected to the connecting groove 901 through the mounting ring 902, which can facilitate the installation and maintenance of the heat dissipation copper tube 903. The direction of thread locking of the mounting ring 902 and the connecting groove 901 is opposite to the rotation direction of the fan impeller.

[0032] A thermal grease layer 904 is fixedly arranged on the side of the heat dissipation copper tube 903, and the surface of the thermal grease layer 904 is in contact with the back of the mounting plate 1; the thermal grease layer 904 has good thermal conductivity, and the heat of the mounting plate 1 can be transferred to the surface of the heat dissipation copper tube 903 through the thermal grease layer 904, thereby accelerating the heat dissipation efficiency.

[0033] A protective plate 21 is fixedly provided on the top of the impeller blade 2 ; the protective plate 21 protects the surface of the impeller blade 2 .

[0034] Slide grooves 401 are provided on both sides of the installation shaft 4, and the surfaces of the two installation blocks 6 are slidably matched with the inner walls of the slide grooves 401 respectively. A second limiting groove 402 for limiting the movement of the limiting block 63 is provided in the middle of the inner wall of each slide groove 401, and a threaded groove 403 is provided at one end of the installation shaft 4; the size of the second limiting groove 402 is matched with the size of the limiting block 63, and the second limiting groove 402 can limit the limiting block 63 from freely moving in the direction of the slide groove 401.

[0035] When in use, firstly, the threaded connection 403 at one end of the mounting shaft 4 is threadedly connected with the transmission shaft of the centrifuge to fix the mounting shaft 4, and the direction of rotation and locking of the threaded groove 403 is opposite to the rotation direction of the centrifuge. In order to facilitate the flexible adjustment of the positions of the mounting plate 1 and the impeller blade 2, the mounting plate 1 can be freely moved along the direction of the slide groove 401 through the mounting block 6 at one end of the adjustment tube 3. The slide groove 401 provides guidance for the movement of the mounting block 6. During the movement, the staff can pull the pull block 652, and the pull block 652 can make the limit block 63 retract into the mounting cavity 61 through the cooperation of the guide rod 65 and the first connecting plate 64, which will not hinder the movement of the mounting plate 1. When it is adjusted to a suitable range, release it. The pull block 652 converts the elastic force into the support of the first connecting plate 64 through the return spring 661, so that the limit block 63 is pushed upward and stuck in the second limit groove 402. The size of the second limit groove 402 matches the size of the limit block 63. The second limit groove 402 can limit the limit block 63 to move freely in the direction of the slide groove 401, thereby completing the position adjustment of the backward-type industrial centrifugal fan impeller, which is convenient to adapt to different scenes and installation requirements, and the installation adjustment is more flexible. In order to improve the heat dissipation effect of the backward-type industrial centrifugal fan impeller, the thermal grease layer 904 has good thermal conductivity. The thermal grease layer 904 can transfer the heat of the mounting plate 1 to the surface of the heat dissipation copper tube 903, thereby accelerating the heat dissipation efficiency.

[0036] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0037] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A backward-facing industrial fan impeller, comprising a mounting plate (1) and a mounting shaft (4), characterized in that: The surface of the mounting plate (1) is provided with an impeller blade (2), and the impeller blades (2) are provided in plurality. An adjusting tube (3) is provided in the middle of the mounting plate (1). One end of the adjusting tube (3) is provided with two mounting grooves (5) corresponding to each other. The inner wall of each mounting groove (5) is provided with a mounting block (6). The interior of each mounting block (6) is provided with a mounting cavity (61). The corresponding sides of the two mounting blocks (6) are provided with a first limiting groove (62). The inner wall of each first limiting groove (62) is slidably matched with a limiting block (63). The back of each limiting block (63) is provided with a first connecting plate (64). The back of each first connecting plate (64) is provided with a guide rod (65). The surface of each mounting cavity (61) is provided with a limiting mechanism for providing a supporting force for the first connecting plate (64). The back of the mounting plate (1) is provided with a heat dissipation component (9).

2. The backward-facing industrial fan impeller according to claim 1, characterized in that: Each of the limiting mechanisms comprises a connecting ring (66), a return spring (661) and a support plate (662); the connecting ring (66) is arranged on the surface of the first connecting plate (64); one end of the connecting ring (66) is connected to the return spring (661); the support plate (662) is arranged on one side of the surface of the mounting cavity (61); and the other end of the return spring (661) is connected to the surface of the support plate (662).

3. The backward-facing industrial fan impeller according to claim 2 is characterized in that: Each of the return springs (661) is placed outside the corresponding guide rod (65), and a guide hole for slidingly cooperating with the guide rod (65) is provided in the middle of the support plate (662).

4. The backward-facing industrial fan impeller according to claim 1, characterized in that: A positioning block (651) is provided at one end of each guide rod (65), a positioning groove slidably matched with the positioning block (651) is provided on the back of each mounting block (6), and a pulling block (652) is provided at one end of each positioning block (651).

5. The backward-facing industrial fan impeller according to claim 1, characterized in that: The heat dissipation assembly (9) comprises a connection groove (901), a mounting ring (902) and a heat dissipation copper tube (903); the connection groove (901) is provided in the middle of the back side of the mounting plate (1); the mounting ring (902) is connected to the inner thread of the connection groove (901); and the heat dissipation copper tube (903) for heat dissipation is provided on the surface of the mounting ring (902).

6. The backward-facing industrial fan impeller according to claim 5, characterized in that: A thermally conductive silicone grease layer (904) is provided on the side of the heat dissipation copper tube (903), and the surface of the thermally conductive silicone grease layer (904) is in contact with the back surface of the mounting plate (1).

7. The backward-facing industrial fan impeller according to claim 1, characterized in that: A protective plate (21) is provided at the top end of the wheel piece (2).

8. The backward-facing industrial fan impeller according to claim 1, characterized in that: Slide grooves (401) are provided on both sides of the installation shaft (4), and the surfaces of the two installation blocks (6) are respectively slidably matched with the inner walls of the slide grooves (401). A second limiting groove (402) for limiting the movement of the limiting block (63) is provided in the middle of the inner wall of each slide groove (401), and a threaded groove (403) is provided at one end of the installation shaft (4).

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