Bearing box with cooling fan
By introducing a cooling fan system into the bearing housing, and utilizing the inward convergence design of the fan blades and the inclined exhaust structure, the problem of excessively high bearing housing temperature was solved, achieving stable equipment operation and reducing the failure rate.
Patent Information
- Application Number
- CN202520739850.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-04-18
AI Technical Summary
The lack of cooling systems in the bearing housings of existing high-speed pumps and centrifugal pumps leads to excessively high bearing housing temperatures, which can cause damage during long-term operation and result in accidents such as mechanical seal leakage and motor seizure.
Design a bearing housing with a cooling fan. The fan base and fan blades are rotated by a coupling. The inward converging design of the fan blades promotes airflow to dissipate heat from the bearing body. The hot air is discharged through the inclined surface and filter structure to prevent dust from entering.
It effectively reduces equipment failure rate, has a simple structure, low production cost, is easy to maintain, extends bearing life, and avoids equipment vibration and accidents.
Smart Images
Figure CN223814264U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing box technical field, especially in a bearing box of taking heat dissipation fan. BACKGROUND
[0002] In the operation process of various mechanical equipment, bearing box protects and supports bearing, ensures stable work of bearing, and bearing generates heat due to friction when running, if heat cannot be dissipated in time, will influence performance and life of bearing, in practical application, bearing box with heat dissipation fan usually involves following technology:
[0003] 1, heat dissipation fan mechanism: adopt axial fan or centrifugal fan, axial fan pushes air to flow along the axis through rotating blade, centrifugal fan makes air flow along the radial through centrifugal force, produces higher air pressure;
[0004] 2, heat dissipation air duct structure: usually set up special air inlet and air outlet on bearing box, air inlet guides cold air to enter bearing box interior, exchanges heat with heating bearing, and air outlet then discharges hot air after absorbing heat, carries away heat.
[0005] The existing high-speed pump and centrifugal pump bearing box has no cooling system on site, the temperature of the bearing box is too high during the operation of the equipment, and the long-period operation is easy to cause damage to the bearing, and the vibration of the equipment rises after the bearing is damaged, which can cause mechanical seal leakage, motor shaft holding and other accidents. UTILITY MODEL CONTENTS
[0006] In view of the deficiencies of the prior art, the utility model provides a bearing box with heat dissipation fan, which solves the technical problems of the existing high-speed pump and centrifugal pump bearing box without cooling system on site, the temperature of the bearing box is too high during the operation of the equipment, and the long-period operation is easy to cause damage to the bearing, and the vibration of the equipment rises after the bearing is damaged, which can cause mechanical seal leakage, motor shaft holding and other accidents.
[0007] To achieve the above purpose, the utility model realizes the following technical scheme:
[0008] A bearing box with heat dissipation fan, comprising a shell, a bearing body is installed on the shell, a shaft coupling is arranged in the shell, shaft covers are symmetrically installed at both ends of the shaft coupling, a fan seat is installed between the shaft cover and the shaft coupling, fan blades for heat dissipation are uniformly installed on the fan seat, threaded rods are fixedly installed symmetrically on the shaft coupling, nuts are threadedly installed on the threaded rods, the bottom end of the shell is a slope with high middle and low periphery, air outlets are uniformly formed on the shell, the bearing body is fixedly connected with the lower shaft cover, and the shaft coupling and the shaft cover are connected through the threaded rods and the nuts.
[0009] Preferably, support plates for reinforcing the structure are fixedly installed in the fan seat.
[0010] Preferably, a first filter screen is fixedly installed on the shell for dust prevention.
[0011] Preferably, a second filter screen is fixedly installed on the air outlet of the shell.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] I. When in use, the motor drives the input shaft of the centrifugal pump to rotate through the shaft cover and the shaft coupling, in the process, the fan seat will be rotated, the fan seat will drive the fan blades to rotate, the fan blades will drive the air flow, the fan blades have arc surfaces that gather inward, therefore, the fan blades will promote the air to gather inward when driving the air flow, and the air is blown to the bearing body to heat the bearing body, so that the equipment failure rate is reduced.
[0014] II. The device has simple structure, low production cost and is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS
[0015] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the utility model can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail below.
[0016] Figure 1 It is a shell structure diagram of the utility model;
[0017] Figure 2 It is a shaft cover structure diagram of the utility model;
[0018] Figure 3 It is a shell cross-sectional structure diagram of the utility model;
[0019] Figure 4 It is a fan seat cross-sectional structure diagram of the utility model.
[0020] Legend: 1, shell; 2, bearing body; 3, shaft coupling; 4, shaft cover; 5, fan seat; 6, fan blade; 7, threaded rod; 8, nut; 9, support plate; 11, first filter screen; 12, second filter screen. DETAILED DESCRIPTION
[0021] The embodiment of the application provides a bearing box with a cooling fan, effectively solves the technical problems of no cooling system on site of the bearing box of the existing high-speed pump and centrifugal pump, high temperature of the bearing box during equipment operation, easy damage of the bearing during long-period operation, and accidents such as mechanical seal leakage and motor shaft seizure caused by vibration increase of the equipment after the bearing is damaged, and the like, and has the effects of reducing the equipment failure rate, simple structure, low production cost and convenient maintenance.
[0022] Embodiment
[0023] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the technical scheme in the embodiment of the application effectively solves the technical problems of no cooling system on site of the bearing box of the existing high-speed pump and centrifugal pump, high temperature of the bearing box during equipment operation, easy damage of the bearing during long-period operation, and accidents such as mechanical seal leakage and motor shaft seizure caused by vibration increase of the equipment after the bearing is damaged, and the like, and the general idea is as follows:
[0024] In view of the problems in the prior art, the utility model provides a bearing box with a cooling fan, which comprises an outer shell 1, a bearing body 2 is installed on the outer shell 1, a shaft coupling 3 is arranged in the outer shell 1, shaft covers 4 are symmetrically installed at the two ends of the shaft coupling 3, and a fan seat 5 is installed between the shaft cover 4 and the shaft coupling 3.
[0025] Fan blades 6 for cooling are uniformly installed on the fan seat 5, threaded rods 7 are fixedly installed on the shaft coupling 3 in a symmetrical manner, nuts 8 are threadedly installed on the threaded rods 7, the bottom end of the outer shell 1 is a slope with a high middle and low periphery, and air outlets are uniformly formed in the outer shell 1.
[0026] The bearing body 2 is fixedly connected with the shaft cover 4 below, the shaft coupling 3 and the shaft cover 4 are connected through the threaded rods 7 and the nuts 8, support plates 9 for strengthening the structure are fixedly installed in the fan seat 5 in a uniform manner, a first filter screen 11 for preventing dust is fixedly installed on the outer shell 1, and a second filter screen 12 is fixedly installed on the air outlet of the outer shell 1.
[0027] Housing 1: as bearing box body with cooling fan, provides installation base and accommodation space for other components. The bottom end is designed as a slope with high middle and low four sides, which helps hot air to be discharged from the air outlet during the cooling process, avoiding the accumulation of hot air. Uniformly arranged air outlets are used to discharge the cooled hot air. A first filter screen 11 is fixedly installed on the housing 1 for dust prevention, and a second filter screen 12 is fixedly installed on the air outlet, both of which work together to prevent external dust from entering the bearing box.
[0028] Bearing body 2: installed on the housing 1 and fixedly connected with the shaft cover 4 below, is the object to be cooled. The fan blades 6 drive the gathered air to blow towards the bearing body 2, achieving the cooling of the bearing body 2 and reducing the equipment failure rate.
[0029] Coupling 3: arranged in the housing 1, with shaft covers 4 symmetrically installed at both ends, serving to connect the upper and lower shaft covers 4. It is driven by the motor to rotate the input shaft of the centrifugal pump, thereby driving the fan seat 5 and fan blades 6 to rotate and achieve the cooling function. It is connected with the shaft cover 4 through the threaded rod 7 and nut 8, ensuring the stability of the structure.
[0030] Shaft cover 4: symmetrically installed at both ends of the coupling 3. The upper shaft cover 4 is connected with the output shaft of the motor and other driving equipment, and the lower shaft cover 4 is connected with the input shaft of the centrifugal pump, serving as a key component for power transmission, transmitting the power of the motor to the centrifugal pump, and also participating in the rotation of the fan seat 5 and fan blades 6 for cooling.
[0031] Fan seat 5: installed between the shaft cover 4 and the coupling 3, rotating under the drive of the coupling 3 and the shaft cover 4, and in turn driving the uniformly installed fan blades 6 for cooling to rotate, so that the fan blades 6 can drive air flow to achieve cooling. The support plate 9 is fixedly installed inside to strengthen the structure, enhancing the structural strength of the fan seat 5 and ensuring its stability during rotation.
[0032] Fan blades 6: uniformly installed on the fan seat 5, are the direct components for achieving the cooling function. When rotating, they drive air flow. The inwardly converging curved surface design promotes the inward convergence of air and blows it towards the bearing body 2, achieving the cooling of the bearing body 2 and effectively reducing the probability of equipment failure due to overheating.
[0033] Threaded rod 7: symmetrically fixedly installed on the coupling 3, stably connects the coupling 3 and the shaft cover 4 together through threaded connection with the nut 8, ensuring the stability of the entire power transmission and cooling structure, and enabling the components to work cooperatively.
[0034] Nut 8: threaded on the threaded rod 7, cooperates with the threaded rod 7 to achieve the connection and fixation between the coupling 3 and the shaft cover 4, ensuring the firm connection between the components during equipment operation and preventing loosening due to vibration and other factors, which may affect the normal operation of the equipment.
[0035] Supporting plate 9: uniformly fixedly installed in the fan seat 5, used for strengthening the structural strength of the fan seat 5, bearing various forces in the process of high-speed rotation of the fan seat 5, preventing the fan seat 5 from deforming or being damaged, and ensuring the stable operation of the heat dissipation system;
[0036] First filter screen 11: fixedly installed on the shell 1, mainly for dust prevention, filtering out dust in the air when external air enters the bearing box, reducing dust pollution and wear of internal components, and prolonging the service life of the equipment;
[0037] Second filter screen 12: fixedly installed on the air outlet of the shell 1, also having a dust prevention effect, preventing external dust from entering the bearing box through the air outlet, and cooperating with the first filter screen 11 to create a relatively clean environment for the bearing box, thereby ensuring the stable operation of the equipment.
[0038] Working principle:
[0039] Firstly, the lower shaft cover 4 is connected with the input shaft of the centrifugal pump, and the upper shaft cover 4 is connected with the output shaft of the driving equipment such as the motor. When in use, the motor drives the input shaft of the centrifugal pump to rotate through the shaft cover 4 and the shaft coupling 3. In this process, the fan seat 5 is driven to rotate, the fan blade 6 is driven to rotate, the fan blade 6 drives the air flow, and the fan blade 6 has an inwardly converging arc surface, so that the fan blade 6 promotes the inward convergence of the air flow when driving the air flow, and blows the air to the bearing main body 2 to dissipate heat.
[0040] Secondly, in the process of heat dissipation, hot air will be discharged from the air outlet along the slope at the bottom end of the shell 1, so as to avoid the accumulation of hot air. In the process of heat dissipation, when external air enters along the first filter screen 11, the dust in the air will be filtered by the first filter screen 11, and the second filter screen 12 also has a dust prevention effect.
[0041] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the present application, and are not limitations on the embodiments. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.
Claims
1. A bearing housing with a cooling fan, comprising a housing (1) on which a bearing body (2) is mounted, characterized in that, A coupling (3) is provided in the outer casing (1). Shaft covers (4) are symmetrically installed at both ends of the coupling (3). A fan seat (5) is installed between the shaft cover (4) and the coupling (3). Fan blades (6) for heat dissipation are evenly installed on the fan seat (5). Threaded rods (7) are symmetrically fixed on the coupling (3). Nuts (8) are threaded on the threaded rods (7).
2. A bearing housing with a cooling fan as described in claim 1, characterized in that, The bottom of the outer shell (1) is a sloping surface that is high in the middle and low around the edges.
3. A bearing housing with a cooling fan as described in claim 1, characterized in that, The outer shell (1) is provided with air outlets evenly spaced.
4. A bearing housing with a cooling fan as described in claim 1, characterized in that, The bearing body (2) is fixedly connected to the lower shaft cover (4).
5. A bearing housing with a cooling fan as described in claim 1, characterized in that, The coupling (3) and the shaft cover (4) are connected by a threaded rod (7) and a nut (8).
6. A bearing housing with a cooling fan as described in claim 1, characterized in that, The fan base (5) is uniformly fixed with support plates (9) for reinforcing the structure.
7. A bearing housing with a cooling fan as described in claim 1, characterized in that, A first filter (11) for dust prevention is fixedly installed on the outer casing (1).
8. A bearing housing with a cooling fan as described in claim 1, characterized in that, A second filter (12) is fixedly installed on the air outlet of the outer casing (1).