A novel dual-shaft driven centrifugal blower with adjustable structure

Abstract

This utility model discloses a novel adjustable dual-shaft driven centrifugal blower, relating to the field of centrifugal blower technology. The utility model includes a dual-shaft motor, with volutes fixedly mounted at both ends of the motor. Output shafts are fixedly mounted at both output ends of the motor, and impellers are fixedly mounted on the outer wall of the output shafts within the volute cavity. When the airflow direction in the inlet duct needs adjustment, two cylinders are activated, simultaneously pulling a ring. The ring pulls several racks, which in turn drive rotating gears, which in turn drive several connecting shafts to rotate synchronously. Each rotating gear drives its connected connecting shaft to rotate. Therefore, fan-shaped guide vanes rotate along with the connecting shafts, and simultaneously drive the inner rotating shaft to rotate. By adjusting the angle of the fan-shaped guide vanes, the airflow direction entering the inlet duct can be changed to adapt to different operating conditions.

Description

Technical Field

[0001] This utility model belongs to the field of centrifugal blower technology, and specifically relates to a novel dual-shaft driven centrifugal blower with adjustable structure. Background Technology

[0002] The dual-shaft centrifugal blower is a high-efficiency ventilation device. It is an improvement on the traditional centrifugal blower, which uses a dual-shaft drive to improve performance. The main components of the dual-shaft centrifugal blower include a dual-shaft motor, impeller, and volute. The basic principle of the dual-shaft centrifugal blower is the same as that of the traditional centrifugal blower. Both use the rotation of the impeller to generate centrifugal force to transport gas and are widely used in various industries.

[0003] In existing centrifugal blowers, the connection structure between the intake pipe and the blower cavity is fixed, which means that the direction of air entering the blower cavity from the intake pipe is always single and fixed, and cannot be adjusted according to actual working conditions. The fixed intake direction can easily cause undesirable flow phenomena such as eddies and impacts at the impeller inlet, which will not only increase flow losses but also reduce the aerodynamic efficiency of the blower.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a novel dual-shaft driven centrifugal blower with adjustable structure to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a novel dual-shaft driven centrifugal blower with adjustable structure, including a dual-shaft motor. Both ends of the dual-shaft motor are fixedly installed with volutes. Both output ends of the dual-shaft motor are fixedly installed with output shafts. An impeller is fixedly installed on the outer wall of the output shaft and located in the inner cavity of the volute. An air outlet pipe is connected to the front of the volute, and an air inlet pipe is connected to the side of the volute. A fixing ring is fixedly installed at the center of the inner cavity of the air inlet pipe.

[0008] A plurality of adjusting mechanisms are rotatably mounted on the fixed ring. Each adjusting mechanism includes an inner rotating shaft. A guide vane is fixedly mounted on one end of the inner rotating shaft. A connecting shaft is fixedly mounted on the end of the guide vane away from the inner rotating shaft. A rotating gear is fixedly mounted on the outer wall of the connecting shaft.

[0009] A drive mechanism is meshed on several of the rotating gears, and a corrugated pipe is connected to each of the two air outlet pipes. A Y-shaped pipe is connected to each of the two corrugated pipes.

[0010] Furthermore, the driving mechanism includes a ring, which is sleeved on the outer wall of the air inlet pipe. A plurality of racks are fixedly installed at one end of the ring, and the plurality of racks respectively mesh with a plurality of rotating gears.

[0011] Furthermore, a cylinder is mounted on one end of the ring away from the racks, and the cylinder is mounted on the volute.

[0012] Furthermore, the inner rotating shaft is rotatably mounted on the fixed ring.

[0013] Furthermore, the air inlet pipe has several through holes, and each connecting shaft passes through a corresponding through hole and can rotate within the through hole.

[0014] Furthermore, the guide vanes are arranged in a fan shape.

[0015] This utility model has the following beneficial effects:

[0016] This invention addresses the issue of adjusting the airflow direction within the air inlet duct by activating two cylinders, which simultaneously pull a ring. The ring pulls several racks, which in turn drive rotating gears, which in turn drive several connecting shafts to rotate synchronously. Each rotating gear drives its connected shaft to rotate, causing the fan-shaped guide vanes to rotate along with the connecting shafts. Simultaneously, the guide vanes also drive the inner rotating shaft to rotate. By adjusting the angle of the fan-shaped guide vanes, the airflow direction entering the air inlet duct can be changed to adapt to different operating conditions.

[0017] If the direction and position of the exhaust air need to be adjusted, the two corrugated pipes are installed on the two exhaust pipes respectively. Utilizing the bendable and deformable characteristics of the corrugated pipes, the orientation and spatial position of their outlets can be flexibly adjusted according to actual needs. When the exhaust volume of a single exhaust pipe is insufficient, the outlet ends of the two corrugated pipes can be connected to the two inlets of the Y-shaped pipe respectively. At this time, the two airflows will converge in the Y-shaped pipe and finally be discharged from its single outlet, thereby increasing the gas flow rate.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a top view of the present invention;

[0022] Figure 3 This is a schematic diagram of the first partial structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the second partial structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the third partial structure of the present utility model;

[0025] Figure 6 This is a structural diagram of the adjustment mechanism of this utility model;

[0026] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Dual-shaft motor; 2. Volute; 3. Output shaft; 4. Impeller; 5. Outlet duct; 6. Inlet duct; 601. Through hole; 7. Fixing ring; 8. Adjustment mechanism; 801. Inner rotating shaft; 802. Guide vane; 803. Connecting shaft; 804. Rotating gear; 9. Drive mechanism; 901. Ring; 902. Rack; 903. Cylinder; 10. Wave tube; 11. Y-shaped tube. Detailed Implementation

[0029] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0031] Please see Figures 1-7As shown, this utility model is a novel dual-shaft driven centrifugal blower with adjustable structure, including a dual-shaft motor 1. Both ends of the dual-shaft motor 1 are fixedly installed with volutes 2. Both output ends of the dual-shaft motor 1 are fixedly installed with output shafts 3. An impeller 4 is fixedly installed on the outer wall of the output shaft 3 and located in the inner cavity of the volute 2. An air outlet pipe 5 is connected to the front of the volute 2, and an air inlet pipe 6 is connected to the side of the volute 2. A fixing ring 7 is fixedly installed at the center of the inner cavity of the air inlet pipe 6.

[0032] The dual-axis motor 1 (model Y2-80M2-4 double-head model) operates, and its two output ends drive the corresponding output shafts 3 to rotate synchronously. The two output shafts 3 are connected to the impellers 4 inside the two volutes 2. Driven by the output shafts 3, the impellers 4 in the two volutes 2 rotate at high speed. Under the action of the rotation of the impellers 4, external air is drawn into the volute 2 through the air inlet pipe 6 connected to one side of each volute 2. The air entering the volute 2 is pressurized by centrifugal force under the action of the high-speed rotating impellers 4. Finally, the pressurized air is discharged from the air outlet pipe 5 connected to the volute 2, completing the gas transportation and pressurization process.

[0033] A plurality of adjusting mechanisms 8 are rotatably mounted on the fixed ring 7. Each adjusting mechanism 8 includes an inner rotating shaft 801. A guide vane 802 is fixedly mounted on one end of the inner rotating shaft 801. A connecting shaft 803 is fixedly mounted on the end of the guide vane 802 away from the inner rotating shaft 801. A rotating gear 804 is fixedly mounted on the outer wall of the connecting shaft 803.

[0034] A drive mechanism 9 is meshed on several of the rotating gears 804, a wave tube 10 is connected to each of the two air outlet pipes 5, a Y-shaped tube 11 is connected to each of the two wave tubes 10, and the guide vane 802 is arranged in a fan shape.

[0035] When it is necessary to adjust the airflow direction in the air inlet duct 6, the drive mechanism 9 is activated. The drive mechanism 9 will drive several rotating gears 804 to rotate synchronously. Each rotating gear 804 drives the connecting shaft 803 connected to it to rotate. Since the connecting shaft 803 is fixedly installed with fan-shaped guide vanes 802, the guide vanes 802 will rotate together with the connecting shaft 803. It should be noted that there are gaps between the fan-shaped guide vanes 802. When several guide vanes 802 rotate at the same time, there will be no mutual obstruction. At the same time, the guide vanes 802 will also drive the inner rotating shaft 801 to rotate. The angle of several fan-shaped guide vanes 802 can be adjusted at the same time through the drive mechanism 9, thereby changing the airflow direction entering the air inlet duct 6 to adapt to different working conditions.

[0036] If it is necessary to adjust the direction and position of the exhaust air, two corrugated pipes 10 can be installed on two air outlet pipes 5 respectively. Utilizing the bendable and deformable characteristics of the corrugated pipes 10, the orientation and spatial position of their outlets can be flexibly adjusted according to actual needs. When the exhaust volume of a single air outlet pipe 5 is insufficient, a Y-shaped pipe 11 can be used. The Y-shaped pipe 11 has two inlets and one outlet. The outlet ends of the two corrugated pipes 10 are connected to the two inlets of the Y-shaped pipe 11 respectively. At this time, the two airflows will converge in the Y-shaped pipe 11 and finally be discharged from its single outlet, thereby increasing the gas flow rate.

[0037] In one embodiment, the drive mechanism 9 includes a ring 901, which is sleeved on the outer wall of the air inlet pipe 6. A plurality of racks 902 are fixedly installed at one end of the ring 901, and the plurality of racks 902 mesh with a plurality of rotating gears 804 respectively.

[0038] A cylinder 903 is mounted on one end of the ring 901 away from the racks 902, and the cylinder 903 is mounted on the volute 2.

[0039] Simultaneously, two cylinders 903 (model CJ1B4-15) are activated, pushing the ring 901. Furthermore, since the ring 901 is fitted onto the outer wall of the air inlet pipe 6 and the connection between the ring 901 and the air inlet pipe 6 is a sliding connection, the air inlet pipe 6 can provide guidance for the ring 901. The ring 901 pushes several racks 902 to move, and the racks 902 simultaneously drive their respective meshing rotating gears 804 to rotate. In turn, the rotating gears 804 drive several connecting shafts 803 to rotate, and the connecting shafts 803 drive several guide vanes 802. This allows for simultaneous adjustment of the angle of several fan-shaped guide vanes 802, thereby changing the airflow direction entering the air inlet pipe 6 to adapt to different working conditions.

[0040] In one embodiment, the inner rotating shaft 801 is rotatably mounted on the fixed ring 7.

[0041] The fixing ring 7 can support several inner rotating shafts 801, ensuring the stability of the rotation of the inner rotating shafts 801.

[0042] In one embodiment, the air inlet pipe 6 is provided with a plurality of through holes 601, and each connecting shaft 803 passes through the corresponding through hole 601 and is able to rotate within the through hole 601.

[0043] The through hole 601 provides space for the rotation of the connecting shaft 803. The connecting shaft 803 can rotate within the through hole 601. When the connecting shaft 803 rotates, it can drive the fan-shaped guide vane 802 to rotate. This allows the angle of the guide vane 802 to be adjusted, changing the airflow direction entering the air inlet pipe 6 to adapt to different working conditions.

[0044] Working principle: When the dual-shaft motor 1 starts, the two output ends of the dual-shaft motor 1 will drive the two output shafts 3 to rotate respectively. The two output shafts 3 drive the impellers 4 in the two volutes 2 to rotate. Under the action of the rotation of the impellers 4, the outside air is drawn into the volute 2 through the air inlet pipe 6 connected to one side of each volute 2. Under the action of the centrifugal force of the high-speed rotating impellers 4, the air is pressurized. Finally, the pressurized air will be discharged from the air outlet pipe 5 connected to the volute 2.

[0045] When it is necessary to adjust the airflow direction in the air inlet duct 6, two cylinders 903 are activated simultaneously, pulling the ring 901. The ring 901 pulls several racks 902 to move, and the racks 902 simultaneously drive the rotating gears 804 to rotate. The rotating gears 804 drive several connecting shafts 803 to rotate synchronously. Each rotating gear 804 drives the connecting shaft 803 connected to it to rotate. Therefore, the fan-shaped guide vanes 802 will rotate together with the connecting shafts 803. At the same time, the guide vanes 802 will also drive the inner rotating shaft 801 to rotate. Thus, by adjusting the angle of the fan-shaped guide vanes 802, the airflow direction entering the air inlet duct 6 can be changed to adapt to different working conditions.

[0046] If it is necessary to adjust the direction and position of the exhaust air, install the two corrugated pipes 10 on the two exhaust pipes 5 respectively. Utilizing the bendable and deformable characteristics of the corrugated pipes 10, the orientation and spatial position of their outlets can be flexibly adjusted according to actual needs. When the exhaust volume of a single exhaust pipe 5 is insufficient, the outlet ends of the two corrugated pipes 10 can be connected to the two inlets of the Y-shaped pipe 11 respectively. At this time, the two airflows will converge in the Y-shaped pipe 11 and finally be discharged from its single outlet, thereby increasing the gas flow rate.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A new type of double shaft driven centrifugal blower with structural adjustment, comprising a double shaft motor (1), characterized in that: Both ends of the dual-axis motor (1) are fixedly installed with volutes (2), and both output ends of the dual-axis motor (1) are fixedly installed with output shafts (3). An impeller (4) is fixedly installed on the outer wall of the output shaft (3) and in the inner cavity of the volute (2). An air outlet pipe (5) is connected to the front of the volute (2), and an air inlet pipe (6) is connected to the side of the volute (2). A fixing ring (7) is fixedly installed in the center of the inner cavity of the air inlet pipe (6). A plurality of adjusting mechanisms (8) are rotatably mounted on the fixed ring (7). The adjusting mechanism (8) includes an inner rotating shaft (801), a guide vane (802) is fixedly mounted on one end of the inner rotating shaft (801), a connecting shaft (803) is fixedly mounted on the end of the guide vane (802) away from the inner rotating shaft (801), and a rotating gear (804) is fixedly mounted on the outer wall of the connecting shaft (803). A drive mechanism (9) meshes with several of the rotating gears (804), and a wave pipe (10) is connected to each of the two air outlet pipes (5), and a Y-shaped pipe (11) is connected to each of the two wave pipes (10).

2. A new type of dual shaft driven centrifugal blower with adjustable structure according to claim 1, characterized in that, The drive mechanism (9) includes a ring (901), which is sleeved on the outer wall of the air inlet pipe (6). A plurality of racks (902) are fixedly installed at one end of the ring (901), and the plurality of racks (902) mesh with the plurality of rotating gears (804) respectively.

3. A new type of dual shaft driven centrifugal blower with adjustable structure according to claim 2, characterized in that, A cylinder (903) is mounted on one end of the ring (901) away from the racks (902), and the cylinder (903) is mounted on the volute (2).

4. A novel double shaft driven centrifugal blower of adjustable structure as claimed in claim 1 wherein, The inner rotating shaft (801) is rotatably mounted on the fixed ring (7).

5. A novel double shaft driven centrifugal blower of adjustable structure as claimed in claim 1 wherein, The air inlet pipe (6) has several through holes (601), and each connecting shaft (803) passes through the corresponding through hole (601) and can rotate within the through hole (601).

6. A novel adjustable dual-shaft driven centrifugal blower according to claim 1, characterized in that, The guide vane (802) is arranged in a fan shape.

Images