Bearing box exhaust heat dissipation structure of double-shaft vibrating screen

Abstract

The bearing box exhaust heat dissipation structure comprises a screen box, a bearing box, two sets of excitation units, an exhaust pipe and a filter, the bearing box is fixed to the screen box, each excitation unit comprises a main shaft, a bearing body and an eccentric structure, the bearing body is arranged on the outer side of the main shaft in a sleeving mode, and the bearing bodies of the two sets of excitation units are both arranged in the bearing box; the eccentric structures are arranged at two ends of the spindle, two ends of the exhaust pipe are communicated with an inner cavity of the bearing box and the filter respectively, and the filter is fixed outside the bearing box. The exhaust pipe is communicated with the inner cavity of the bearing box and the filter, so that when the pressure in the bearing box changes, gas can be exhausted or enter through the exhaust pipe, the pressure of the gas in the bearing box is balanced, and the bearing box is prevented from being damaged due to rapid change of the pressure; in addition, heat generated by friction of the bearing body in the working process can be exhausted through the exhaust pipe, and a certain heat dissipation effect on the bearing is achieved.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen structure, and in particular to a bearing housing exhaust and heat dissipation structure for a dual-shaft vibrating screen. Background Technology

[0002] Twin-shaft vibrating screens are commonly used in mining, metallurgy, and chemical processing applications, where they achieve material screening through high-frequency vibration. During the screening process, the pressure inside the bearing housing changes due to the vibration generated by the equipment and the continuous movement of the rotating parts. Firstly, since the bearing housing is directly fixed to the screen box, the vibration generated during operation causes changes in the air volume inside the bearing housing. Furthermore, the high-speed rotation of the rotating parts also causes changes in the air volume inside the bearing housing. Additionally, the bearings generate a large amount of heat due to friction during operation, and the lubricating oil inevitably evaporates under high temperatures, thus affecting the pressure changes inside the bearing housing. Excessive pressure can severely damage the sealing structure of the bearing housing itself, causing lubricating oil leakage, affecting the lubrication effect and service life of the equipment, and may also lead to other equipment malfunctions. Therefore, the overall operational reliability of the twin-shaft vibrating screen must be considered. Utility Model Content

[0003] The purpose of this invention is to propose a bearing housing exhaust and heat dissipation structure for a dual-shaft vibrating screen, so as to solve one or more technical problems existing in the background art.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A bearing housing exhaust and heat dissipation structure for a dual-shaft vibrating screen includes a screen box, a bearing housing, two sets of excitation units, an exhaust pipe, and a filter. The bearing housing is fixed on the screen box. Each excitation unit includes a main shaft, a bearing body, and an eccentric structure. The bearing body is sleeved on the outside of the main shaft. The bearing bodies of both sets of excitation units are located inside the bearing housing. The eccentric structure is located at both ends of the main shaft. The two ends of the exhaust pipe are respectively connected to the inner cavity of the bearing housing and the filter. The filter is fixed on the outside of the bearing housing.

[0006] Preferably, the exhaust pipe is a flexible hose, and both ends of the exhaust pipe are threadedly connected to the bearing housing and the filter.

[0007] Preferably, both ends of the exhaust pipe are provided with threaded joints, the bearing housing is provided with a first threaded interface communicating with its inner cavity, the bottom of the filter is provided with a second threaded interface, and the exhaust pipe is threadedly connected to the first threaded interface and the second threaded interface respectively through the threaded joints.

[0008] Preferably, the filter also includes a support plate, which is fixed to both sides of the screen box by fastening bolts. The bearing box is fixed to the support plate, and the support plate is also provided with a fixing seat, and the filter is placed in the fixing seat.

[0009] Preferably, it also includes a damping bracket, which is fixed to the outside of the support plate, and the fixing seat is disposed on the damping bracket.

[0010] Preferably, the filter includes a housing and a filter element, the housing has an exhaust chamber, the filter element is detachably disposed in the exhaust chamber, and the second threaded interface is disposed at the bottom of the housing.

[0011] Preferably, the filter further includes a solenoid valve, which is disposed inside the housing. The input end of the solenoid valve is connected to the second threaded interface, and the output end of the solenoid valve is connected to the exhaust chamber.

[0012] Preferably, it also includes a pressure sensor, which is disposed inside the bearing housing.

[0013] The beneficial effects of this utility model are as follows: By setting an exhaust pipe that connects to the bearing housing cavity and the filter, when the pressure inside the bearing housing changes, gas can be discharged or enter through the exhaust pipe, balancing the gas pressure inside the bearing housing and preventing damage to the bearing housing itself due to rapid pressure changes; in addition, the heat generated by friction of the bearing body during operation can also be discharged through the exhaust pipe, achieving a certain heat dissipation effect on the bearing; by setting a filter at the end of the exhaust pipe, not only can impurities in the discharged gas be filtered to avoid environmental impact, but also impurities in the air can be prevented from entering the bearing housing, contaminating the lubricating oil or damaging the bearing body. Attached Figure Description

[0014] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0015] Figure 1 This is a structural diagram of one embodiment of the present utility model;

[0016] Figure 2 This is a structural cross-sectional view of one embodiment of the present invention;

[0017] Figure 3 This is a structural diagram of a filter according to one embodiment of the present invention;

[0018] Figure 4 This is a cross-sectional view of a filter according to one embodiment of the present invention;

[0019] The components include: screen box 1, bearing box 2, excitation unit 3, main shaft 31, bearing body 32, eccentric structure 33, exhaust pipe 41, filter 42, support plate 5, inner cavity 21, first threaded interface 22, damping bracket 11, fixed seat 12, housing 421, filter element 422, second threaded interface 423, and solenoid valve 424. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] This embodiment describes a bearing housing exhaust and heat dissipation structure for a dual-shaft vibrating screen, see attached figure. Figure 1 and 2 The system includes a screen box 1, a bearing box 2, two sets of excitation units 3, an exhaust pipe 41, and a filter 42. The bearing box 2 is fixed on the screen box 1. The excitation unit 3 includes a main shaft 31, a bearing body 32, and an eccentric structure 33. The bearing body 32 is sleeved on the outside of the main shaft 31. The bearing bodies 32 of the two sets of excitation units 3 are all located inside the bearing box 2. The eccentric structure 33 is located at both ends of the main shaft 31. The two ends of the exhaust pipe 41 are respectively connected to the inner cavity 21 of the bearing box 2 and the filter 42. The filter 42 is fixed on the outside of the bearing box 2.

[0022] By connecting the exhaust pipe 41 to the inner cavity 21 of the bearing housing 2 and the filter 42, when the pressure inside the bearing housing 2 changes, gas can be discharged or enter through the exhaust pipe 41, balancing the gas pressure inside the bearing housing 2 and preventing damage to the bearing housing 2 itself due to rapid pressure changes. In addition, the heat generated by the friction of the bearing body 32 during operation can also be discharged through the exhaust pipe 41, which plays a certain role in heat dissipation for the bearing. By setting the filter 42 at the end of the exhaust pipe 41, not only can impurities in the discharged gas be filtered to avoid environmental impact, but also impurities in the air can be prevented from entering the bearing housing 2 to contaminate the lubricating oil or damage the bearing body 32.

[0023] Preferably, the exhaust pipe 41 is a flexible hose, and both ends of the exhaust pipe 41 are threadedly connected to the bearing housing 2 and the filter 42. The use of a flexible hose for the exhaust pipe 41 not only allows it to be used in a vibrating environment and avoids damage from long-term vibration, but also facilitates installation and disassembly, and makes it easy to replace when damaged.

[0024] Preferably, both ends of the exhaust pipe 41 are provided with threaded connectors. The bearing housing 2 has a first threaded interface 22 communicating with its inner cavity 21, and the bottom of the filter 42 has a second threaded interface 423. The exhaust pipe 41 is threadedly connected to the first threaded interface 22 and the second threaded interface 423 respectively through the threaded connectors. The exhaust pipe 41 is connected to the bearing housing 2 and the filter 42 by a threaded connection, which ensures the stability and sealing of the connection, facilitates installation and disassembly, and improves the efficiency of subsequent maintenance and repair.

[0025] Preferably, the device also includes a support plate 5, which is fixed to both sides of the screen box 1 by fastening bolts. The bearing box 2 is fixed on the support plate 5, and a fixing seat 12 is also provided on the support plate 5. The filter 42 is placed in the fixing seat 12. The filter 42 is placed in the fixing seat 12 on the support plate 5, which avoids the possible decrease in sealing caused by setting a structure for fixing the filter 42 on the bearing box 2, and improves the stability of equipment operation.

[0026] Furthermore, a damping bracket 11 is included, which is fixed to the outside of the support plate 5, and a fixing seat 12 is provided on the damping bracket 11. The setting of the damping bracket 11 can further enhance the stability of the overall structure, reduce the impact of vibration on the filter 42 and other components of the exhaust heat dissipation structure, ensure the normal operation of the filter 42, and thus ensure the stable operation of the entire exhaust heat dissipation system, thereby improving the overall performance and reliability of the dual-axis vibrating screen.

[0027] Preferred options are listed in the appendix. Figure 3 The filter 42 includes a housing 421 and a filter element 422. The housing 421 has an exhaust chamber, and the filter element 422 is detachably mounted in the exhaust chamber. A second threaded interface 423 is located at the bottom of the housing 421. By providing a detachable filter element 422, it is convenient to clean or replace the filter element 422 regularly, ensuring the filtration effect. It also facilitates timely removal of impurities from the filter element 422, preventing impurities from damaging the filter element 422 and entering the exhaust pipe 41, thus ensuring the long-term stable operation of the exhaust heat dissipation structure.

[0028] Preferred options are listed in the appendix. Figure 4 The filter 42 also includes a solenoid valve 424, which is located inside the housing 421. The input end of the solenoid valve 424 is connected to the second threaded interface 423, and the output end of the solenoid valve 424 is connected to the exhaust chamber. By setting the solenoid valve 424, the opening and closing of the solenoid valve 424 can be controlled according to the actual pressure in the bearing housing 2, thereby changing the flow state of gas in the exhaust pipe 41.

[0029] Preferably, a pressure sensor (not labeled in the figure) is also included, which is located inside the bearing housing 2. The pressure sensor inside the bearing housing 2 is used to monitor the internal air pressure in real time. During equipment operation, the pressure sensor monitors the pressure inside the bearing housing 2 in real time and compares it with a preset pressure range. When the pressure sensor detects that the pressure inside the bearing housing 2 exceeds the preset threshold range, it controls the solenoid valve 424 to open, allowing excess gas inside the bearing housing 2 to be discharged to the outside of the filter 42 through the exhaust pipe 41 under the action of pressure difference. This effectively reduces the pressure inside the bearing housing 2, preventing excessive pressure from damaging the sealing structure and causing lubricating oil leakage. When the pressure sensor detects that the pressure has dropped to the set pressure range, it controls the solenoid valve 424 to close, ensuring the stability of the bearing housing 2.

[0030] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A bearing housing exhaust and heat dissipation structure for a dual-shaft vibrating screen, characterized in that, The device includes a screen box, a bearing box, two sets of excitation units, an exhaust pipe, and a filter. The bearing box is fixed on the screen box. Each excitation unit includes a main shaft, a bearing body, and an eccentric structure. The bearing body is sleeved on the outside of the main shaft. The bearing bodies of both sets of excitation units are located inside the bearing box. The eccentric structure is located at both ends of the main shaft. The two ends of the exhaust pipe are respectively connected to the inner cavity of the bearing box and the filter. The filter is fixed on the outside of the bearing box.

2. The bearing housing exhaust and heat dissipation structure of a dual-shaft vibrating screen according to claim 1, characterized in that, The exhaust pipe is a flexible hose, and both ends of the exhaust pipe are threadedly connected to the bearing housing and the filter.

3. The bearing housing exhaust and heat dissipation structure of a dual-shaft vibrating screen according to claim 2, characterized in that, Both ends of the exhaust pipe are provided with threaded joints, the bearing housing is provided with a first threaded interface communicating with its inner cavity, the bottom of the filter is provided with a second threaded interface, and the exhaust pipe is threadedly connected to the first threaded interface and the second threaded interface respectively through the threaded joints.

4. The bearing housing exhaust and heat dissipation structure of a dual-shaft vibrating screen according to claim 1, characterized in that, It also includes a support plate, which is fixed to both sides of the screen box by fastening bolts. The bearing box is fixed to the support plate, and the support plate is also provided with a fixing seat. The filter is placed in the fixing seat.

5. The bearing housing exhaust and heat dissipation structure of a dual-shaft vibrating screen according to claim 4, characterized in that, It also includes a damping bracket, which is fixed to the outside of the support plate, and the fixing seat is disposed on the damping bracket.

6. The bearing housing exhaust and heat dissipation structure of a dual-shaft vibrating screen according to claim 3, characterized in that, The filter includes a housing and a filter element. The housing has an exhaust chamber, and the filter element is detachably disposed in the exhaust chamber. The second threaded interface is located at the bottom of the housing.

7. The bearing housing exhaust and heat dissipation structure of a dual-shaft vibrating screen according to claim 6, characterized in that, The filter also includes a solenoid valve, which is disposed inside the housing. The input end of the solenoid valve is connected to the second threaded interface, and the output end of the solenoid valve is connected to the exhaust chamber.

8. The bearing housing exhaust and heat dissipation structure of a dual-shaft vibrating screen according to claim 7, characterized in that, It also includes a pressure sensor, which is located inside the bearing housing.

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