Single stage centrifugal blower with omni-directional support structure

Abstract

The utility model provides a single stage centrifugal blower with all -round support structure, it is equipped with casing assembly and transmission assembly, casing assembly includes air inlet casing, air outlet casing, air inlet end bearing box, air outlet end bearing box, transmission assembly includes spindle, the front end position fixed establishment of air inlet casing is equipped with air inlet end support seat, the rear end position fixed establishment of air outlet casing is equipped with air outlet end support seat, the bottom end position fixed establishment of air inlet end bearing box is equipped with air inlet end fixed seat, the bottom end position fixed establishment of air outlet end bearing box is equipped with air outlet end fixed seat. Through setting up air inlet end support seat and air outlet end support seat respectively in the axial outside of air inlet casing and air outlet casing of this single stage centrifugal blower, can form all -round fixed to the air inlet casing and air outlet casing position of blower, when blower operation, the air inlet casing and air outlet casing position can not appear obvious shaking. The utility model can be widely applied to centrifugal blower.

Description

Technical Field

[0001] This utility model relates to a centrifugal blower, and more particularly to a single-stage centrifugal blower with an all-around support structure. Background Technology

[0002] A centrifugal blower is an industrial device that generates centrifugal force to pressurize gas through a high-speed rotating impeller. During operation, the gas is drawn in axially to achieve the conversion of kinetic energy and pressure energy.

[0003] To ensure the long-term stability of the centrifugal blower, it needs to be securely fixed in all directions during installation. However, according to... Figure 1 , Figure 2 It can be seen that most centrifugal blowers are currently fixed by setting fixed seats at the bottom of the bearing housing at the inlet end and the bearing housing at the outlet end, and fixing the fixed seats to the ground with bolts. At the same time, auxiliary support seats are set on the outer sides of the radial ends of the outlet casing. During installation, the auxiliary support seats are fixed to the external support frame with bolts.

[0004] However, in this fixing method, the positions of the air inlet housing and the air outlet housing are fixed only by the auxiliary support seat on the air outlet housing. Furthermore, the auxiliary support seat is far from the center of the blower, which causes the positions of the air inlet housing and the air outlet housing to shake significantly during the operation of the blower, resulting in significantly increased operating noise. At the same time, it will damage the sealing of the blower, causing problems such as leakage of lubricating oil and transmitted gas, and shortening the service life of the blower. Utility Model Content

[0005] This utility model addresses the above-mentioned technical problems by providing a single-stage centrifugal blower with an all-around support structure. By setting an inlet end support seat and an outlet end support seat on the axial outer side of the inlet and outlet casings of the single-stage centrifugal blower, the positions of the inlet and outlet casings of the blower can be fixed in all directions. During operation, the positions of the inlet and outlet casings will not shake significantly, the operating noise will be significantly reduced, and the sealing performance of the blower will not be compromised, preventing problems such as lubricating oil and transmitted gas leakage, thus extending the service life of the blower.

[0006] Therefore, the technical solution of this utility model is a single-stage centrifugal blower with an all-round support structure, which is provided with a housing assembly and a transmission assembly. The housing assembly includes an inlet housing, an outlet housing, an inlet bearing housing, and an outlet bearing housing. The outlet of the inlet housing and the inlet of the outlet housing are axially sealed and fixed. The inlet bearing housing is located at the axial front end of the inlet housing, and the outlet bearing housing is located at the axial rear end of the outlet housing. The transmission assembly includes a main shaft, which axially passes through the interior of the inlet housing, the outlet housing, the inlet bearing housing, and the outlet bearing housing.

[0007] An air intake support is fixedly provided at the front end of the air intake housing, and an air outlet support is fixedly provided at the rear end of the air outlet housing.

[0008] An air inlet mounting base is fixedly installed at the bottom of the air inlet bearing housing, and an air outlet mounting base is fixedly installed at the bottom of the air outlet bearing housing.

[0009] Preferably, there are two intake end support seats, and the two intake end support seats are fixedly connected to the front end of the intake housing on the left and right sides of the main shaft, respectively.

[0010] There are two outlet end support seats, and the two outlet end support seats are fixedly connected to the rear end of the outlet housing on the left and right sides of the main shaft, respectively.

[0011] Preferably, the volume of the outlet support is larger than the volume of the inlet support.

[0012] Preferably, both air inlet end support seats are fixedly connected to the air inlet end bearing housing, and both air outlet end support seats are fixedly connected to the air outlet end bearing housing.

[0013] Preferably, the air inlet support is fixed to the air inlet housing by welding, and the air outlet support is fixed to the air outlet housing by welding.

[0014] The air inlet end fixing seat and the air inlet end bearing box are fixed together by welding; the air outlet end fixing seat and the air outlet end bearing box are fixed together by welding.

[0015] The inlet end support base and the inlet end bearing housing are fixedly connected by bolts, and the outlet end support base and the outlet end bearing housing are fixedly connected by bolts.

[0016] The beneficial effects of this utility model are:

[0017] 1. By fixing an inlet end support seat at the front end of the inlet housing and an outlet end support seat at the rear end of the outlet housing, and by fixing two inlet end supports to the front end of the inlet housing on the left and right sides of the main shaft, and two outlet end supports to the rear end of the outlet housing on the left and right sides of the main shaft, the inlet and outlet housings can be supported and fixed in all directions. Furthermore, since both inlet and outlet end supports are located on the left and right sides of the main shaft and are relatively close to it, the vibration amplitude of the blower during operation can be significantly reduced. Additionally, the thermal expansion deformation of the inlet and outlet housings can be limited, preventing lubricating oil or transmitted gas leakage during blower operation, increasing the overall structural stability of the blower, and extending the service life of the entire blower.

[0018] 2. Two inlet end support seats are simultaneously fixedly connected to the inlet end bearing housing, and two outlet end support seats are simultaneously fixedly connected to the outlet end bearing housing. The inlet end bearing housing and outlet end bearing housing are fixedly connected to the inlet housing and outlet housing respectively through the inlet end support seats and outlet end support seats, forming an integrated structure. At the same time, under the joint fixing and support of the inlet end fixed seat, outlet end fixed seat, inlet end support seat and outlet end support seat, the blower is fully integrated and fixed, further reducing the shaking amplitude of the blower during operation and extending its service life. Attached Figure Description

[0019] Figure 1 This is a front view of an existing single-stage centrifugal blower structure;

[0020] Figure 2 This is a top view of an existing single-stage centrifugal blower structure;

[0021] Figure 3 This is the front view of this utility model;

[0022] Figure 4 This is a top view of the present invention;

[0023] Figure 5 This is a utility model Figure 4 Enlarged view of point A in the middle.

[0024] Explanation of symbols in the diagram:

[0025] 1. Inlet housing; 2. Outlet housing; 3. Inlet bearing housing; 4. Outlet bearing housing; 5. Inlet mounting base; 6. Outlet mounting base; 7. Auxiliary support base; 9. Inlet support base; 10. Outlet support base; 11. Main shaft. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments.

[0027] pass Figures 1-5As can be seen, this single-stage centrifugal blower with an all-around support structure is equipped with a housing assembly and a transmission assembly. The housing assembly includes an inlet housing 1, an outlet housing 2, an inlet bearing housing 3, and an outlet bearing housing 4. The outlet of the inlet housing 1 and the inlet of the outlet housing 2 are axially sealed and fixed. The inlet bearing housing 3 is located at the axial front end of the inlet housing 1, and the outlet bearing housing 4 is located at the axial rear end of the outlet housing 2. The transmission assembly includes a main shaft 11, which axially passes through the interiors of the inlet housing 1, the outlet housing 2, the inlet bearing housing 3, and the outlet bearing housing 4. An impeller is fixedly mounted on the outer circumference of the main shaft 11 inside the housing assembly. When the blower is running, the main shaft 11 drives the impeller to rotate synchronously. Under the action of the centrifugal force of the rotating impeller, the gas is transferred from the inlet of the inlet housing 1 to the outlet of the outlet housing 2, thereby realizing the pressurized gas transfer.

[0028] An air intake support 9 is fixedly provided at the front end of the air intake housing 1, and an air outlet support 10 is fixedly provided at the rear end of the air outlet housing 2. When the blower is installed, the air intake support 9 and the air outlet support 10 are fixed to the mounting platform by bolts to achieve overall fixation of the positions of the air intake housing 1 and the air outlet housing 2.

[0029] An inlet end fixing seat 5 is fixedly installed at the bottom of the inlet end bearing housing 3, and an outlet end fixing seat 6 is fixedly installed at the bottom of the outlet end bearing housing 4. When the blower is installed, the inlet end fixing seat 5 and the outlet end fixing seat 6 are fixed to the mounting platform by bolts to fix the positions of the inlet end bearing housing 3 and the outlet end bearing housing 4.

[0030] Ultimately, with the combined fixing action of the inlet end support 9, the outlet end support 10, the inlet end fixed seat 5, and the outlet end fixed seat 6, the centrifugal blower is fully supported and fixed. When the blower is running, there will be no significant shaking in the inlet and outlet housings, the operating noise will be significantly reduced, and the blower's sealing performance will not be compromised, preventing problems with lubricating oil and transmitted gas leakage, thus extending the blower's service life.

[0031] In one specific embodiment, there are two intake end support seats 9, which are fixedly connected to the front end of the intake housing 1 on the left and right sides of the main shaft 11, respectively. There are also two outlet end support seats 10, which are fixedly connected to the rear end of the outlet housing 2 on the left and right sides of the main shaft 11, respectively. This provides comprehensive support and fixation for the intake housing 1 and the outlet housing 2. Furthermore, since both intake end support seats 9 and outlet end support seats 10 are located on the left and right sides of the main shaft 11 and are relatively close to it, the vibration amplitude during blower operation can be significantly reduced. Additionally, the thermal expansion deformation amplitude of the intake housing 1 and the outlet housing 2 can be limited, preventing lubricating oil or transmitted gas leakage during blower operation, increasing the overall structural stability of the blower, and extending the service life of the entire blower.

[0032] In one specific embodiment, the volume of the outlet support 10 is larger than that of the inlet support 9. Its function is that, when the blower is running, under the centrifugal force of the impeller, the pressure at the inlet end of the impeller is significantly less than the pressure at the outlet end. That is, the gas pressure in the inlet housing 1 is significantly less than the gas pressure in the outlet housing 2. Therefore, there is a stricter standard for the stability of the outlet housing 2 side during operation. Thus, the volume of the outlet support 10 is increased to further reduce the sway amplitude of the outlet housing 2 side during blower operation and ensure the stability of the overall structure of the blower.

[0033] In one specific embodiment, two inlet end support seats 9 are simultaneously fixedly connected to the inlet end bearing housing 3, and two outlet end support seats 10 are simultaneously fixedly connected to the outlet end bearing housing 4. The inlet end bearing housing 3 and the outlet end bearing housing 4 are fixedly connected to the inlet housing 1 and the outlet housing 2 respectively through the inlet end support seats 9 and the outlet end support seats 10, forming an integrated structure. At the same time, under the fixed support of the inlet end fixing seat 5, the outlet end fixing seat 6, the inlet end support seat 9, and the outlet end support seat 10, the blower is fully integrated and fixed, further reducing the shaking amplitude of the blower during operation and extending its service life.

[0034] In one specific embodiment, the inlet end support 9 is fixed to the inlet housing 1 by welding, the outlet end support 10 is fixed to the outlet housing 2 by welding, the inlet end fixing seat 5 is fixed to the inlet end bearing housing 3 by welding, and the outlet end fixing seat 6 is fixed to the outlet end bearing housing 4 by welding. This can increase the firmness of the connection between the inlet end support 9 and the inlet housing 1, the outlet end support 10 and the outlet housing 2, the inlet end fixing seat 5 and the inlet end bearing housing 3, and the outlet end fixing seat 6 and the outlet end bearing housing 4, respectively, and ensure the stability of the overall structure when the blower is running.

[0035] The inlet end support 9 and the inlet end bearing housing 3 are fixedly connected by bolts, and the outlet end support 10 and the outlet end bearing housing 4 are fixedly connected by bolts. Under the premise of ensuring the stability of the fixation, the inlet end bearing housing 3 and the outlet end bearing housing 4 can be quickly disassembled and assembled, which is convenient for disassembling and repairing the blower, and the operation is time-saving and labor-saving.

[0036] However, the above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A single-stage centrifugal blower with an all-around support structure, characterized in that: The device includes a housing assembly and a transmission assembly. The housing assembly includes an air inlet housing, an air outlet housing, an air inlet bearing housing, and an air outlet bearing housing. The air outlet of the air inlet housing and the air inlet of the air outlet housing are axially sealed and fixed. The air inlet bearing housing is located at the axial front end of the air inlet housing, and the air outlet bearing housing is located at the axial rear end of the air outlet housing. The transmission assembly includes a main shaft, which axially passes through the interiors of the air inlet housing, the air outlet housing, the air inlet bearing housing, and the air outlet bearing housing. An air intake support is fixedly provided at the front end of the air intake housing, and an air outlet support is fixedly provided at the rear end of the air outlet housing. An air inlet fixing seat is fixedly provided at the bottom of the air inlet bearing housing, and an air outlet fixing seat is fixedly provided at the bottom of the air outlet bearing housing.

2. The single-stage centrifugal blower with an all-around support structure according to claim 1, characterized in that: The number of the air intake end support seats is two, and the two air intake end support seats are respectively fixedly connected to the front end of the air intake housing on the left and right sides of the main shaft. The number of the air outlet support seats is two, and the two air outlet support seats are fixedly connected to the rear end of the air outlet housing on the left and right sides of the main shaft, respectively.

3. The single-stage centrifugal blower with an all-around support structure according to claim 2, characterized in that: The volume of the outlet support is larger than that of the inlet support.

4. The single-stage centrifugal blower with an all-around support structure according to claim 3, characterized in that: Both of the aforementioned air inlet end support seats are fixedly connected to the air inlet end bearing housing, and both of the aforementioned air outlet end support seats are fixedly connected to the air outlet end bearing housing.

5. The single-stage centrifugal blower with an all-around support structure according to claim 4, characterized in that: The air inlet support base is fixed to the air inlet housing by welding, and the air outlet support base is fixed to the air outlet housing by welding. The air inlet end fixing seat and the air inlet end bearing box are fixed together by welding; the air outlet end fixing seat and the air outlet end bearing box are fixed together by welding. The air inlet support and the air inlet bearing housing are fixedly connected by bolts, and the air outlet support and the air outlet bearing housing are fixedly connected by bolts.

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