Air shock resistant system type banana screen

Abstract

The utility model relates to mineral material screening damping technical field, concretely is a kind of air anti-vibration system type banana vibrating screen, is equipped with screen body, support, its characterized in that the screen body is connected on support by air spring damping system, air spring damping system includes at least four groups of air spring damping group, at least four groups of end air valve control assembly, controller, air pipe distribution pipe group, the air spring damping group is respectively arranged in left, right, front, back four positions of screen body, air spring damping group includes at least 1 air spring damper, the upper and lower sides of air spring damper are connected with screen body and support respectively, the air port position of air spring damper is connected with the air outlet of each group of end air valve control assembly, the air inlet of end air valve control assembly is connected with the air outlet of air pipe distribution pipe group, air pipe distribution pipe group is connected with controller, has simple structure, damping effect is good, avoids resonance area, increases equipment service life and so on.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction technology for mineral material screening, specifically an air-resistant banana vibrating screen with simple structure, good vibration reduction effect, avoidance of resonance zone, and increased service life of equipment. Background Technology

[0002] As is well known, vibrating screens are used in many industries, mainly for screening and grading materials. They rely on excitation motors or box-type vibrators to achieve vibration at a certain frequency and amplitude. Traditional vibrating screens mostly use steel springs or rubber composite springs. Metal steel springs have poor vibration isolation effect and easily transmit high-frequency vibrations, while rubber springs have non-adjustable stiffness and are prone to aging. For large equipment like banana screens with drastic changes in dynamic load, traditional springs are unable to provide consistent and stable support.

[0003] Vibrating screens have high requirements for the foundation. To withstand the huge dynamic load of traditional vibrating screens, a large and sturdy concrete foundation needs to be built, or a high-strength, large-size H-beam steel foundation needs to be used. This is costly and limits the flexibility of equipment layout.

[0004] In addition, large equipment in industrial sites will pass through the resonance zone during startup and shutdown, which may generate huge destructive amplitudes and reduce the service life of the equipment. Therefore, there is a need for an intelligent vibration reduction technology that can quickly change the system stiffness and actively skip the resonance zone. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an air-resistant banana vibrating screen with a simple structure, good shock absorption effect, avoidance of resonance zone, and increased service life.

[0006] The technical solution adopted by this utility model to solve its technical problem is: An air-cooled vibration damping system for banana vibrating screens includes a screen body and a support frame. The screen body is connected to the support frame via an air spring damping system. This system comprises at least four sets of air spring damping units, at least four sets of end-valve control components, a controller, and an air duct distribution assembly. The air spring damping units are respectively positioned at the left, right, front, and rear of the screen body. Each air spring damping unit includes at least one air spring damper. The upper and lower sides of the air spring damper are connected to the screen body and the support frame, respectively. The air inlet of the air spring damper is connected to the air outlet of each end-valve control component. The air inlet of the end-valve control component is connected to the air outlet of the air duct distribution assembly. The air duct distribution assembly is connected to the controller.

[0007] Each set of end air valve control components of this utility model is provided with a housing, and a multi-channel distributor is provided inside the housing. The multi-channel distributor has an air inlet and at least one air outlet. The air outlet extends out of the housing through a branch air pipe and is connected to an air spring shock absorber. A one-way valve is installed on each branch air pipe, and a vent valve is installed on the branch air pipe behind the one-way valve. The air inlet is connected to the air outlet of the air duct distribution pipe group through a branch air inlet pipe.

[0008] The duct distribution assembly of this utility model includes a main high-pressure air inlet pipe, a multi-way distribution cylinder, and branch air guide pipes. The multi-way distribution cylinder is provided with a high-pressure air inlet and multiple air guide ports. The high-pressure air inlet is connected to the main high-pressure air inlet pipe, and the air guide ports are connected to the branch air guide pipes. The branch air guide pipes are respectively connected to the branch air inlet pipes of each group of end air valve control components. Branch valves and pressure gauges are respectively installed on the branch air guide pipes. The main high-pressure air inlet pipe is equipped with a main air inlet valve.

[0009] The controller described in this utility model is connected in linkage with the check valve, vent valve, branch switch valve of the air duct distribution group and pressure gauge of the terminal air valve control component. The controller controls the opening and closing of the check valve, vent valve and branch switch valve through the data transmitted by the pressure gauge.

[0010] The air spring damping assembly of this utility model has a limiting post on the side support, which is fixed to the support. A limiting baffle is provided on the screen body above the limiting post to avoid excessive amplitude of the air spring damping assembly and limit the maximum amplitude position of the air spring damping assembly. At the same time, when the equipment is under maintenance, it bears the weight of the screen machine without pressure, preventing the weight of the screen machine from falling directly on the uninflated air spring and thus damaging the air spring.

[0011] This utility model, due to the above-mentioned structure, has the advantages of simple structure, good shock absorption effect, avoidance of resonance zone, and increased service life of equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 yes Figure 1 A schematic diagram of the structure of the mid-terminal air valve control component.

[0014] Figure 3 This is a structural schematic diagram of the duct distribution pipe assembly of this utility model.

[0015] Figure 4 This is a structural schematic diagram of the control box of this utility model. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings: As shown in the attached figure, an air-cooled vibration-damping banana vibrating screen includes a screen body 1 and a support 2. A vibration motor 20 is installed on the screen body 1. The screen body 1 is connected to the support 2 via an air spring damping system. The air spring damping system includes at least four sets of air spring damping groups, at least four sets of end air valve control components 4, a controller 5, and an air duct distribution pipe group. The air spring damping groups are respectively located at the left, right, front, and rear positions of the screen body 1. Each air spring damping group includes at least one air spring damper 3. The upper and lower sides of the air spring damper 3 are connected to the screen body 1 and the support 2, respectively. The air inlet of the air spring damper 3 is connected to the air outlet of each set of end air valve control components 4. The air inlet of the end air valve control components 4 is connected to the air outlet of the air duct distribution pipe group. The air duct distribution pipe group is connected to the controller 5.

[0017] The screen body 1 has a discharge end and a feed end at the front and back, respectively. Air spring damping groups are installed on the left and right sides of the discharge end at the front and the feed end at the rear of the screen body.

[0018] Furthermore, each set of end air valve control components 4 is provided with a housing 6, and a multi-channel distributor 7 is provided inside the housing 6. The multi-channel distributor 7 is provided with an air inlet and at least one air outlet. The air outlet extends out of the housing 6 through a branch air pipe 8 and is connected to the air spring shock absorber 3. A one-way valve 9 is installed on each branch air pipe 8, and a vent valve 10 is installed on the branch air pipe 8 behind the one-way valve 9. The air inlet is connected to the air outlet of the air duct distribution pipe group through a branch air inlet pipe 11.

[0019] Furthermore, the air duct distribution assembly includes a main high-pressure air inlet pipe 12, a multi-way distribution cylinder 13, and branch air guide pipes 14. The multi-way distribution cylinder 13 is provided with a high-pressure air inlet and multiple air guide ports. The high-pressure air inlet is connected to the main high-pressure air inlet pipe 12, and the air guide ports are connected to the branch air guide pipes 14. The branch air guide pipes 14 are respectively connected to the branch air inlet pipes 11 of each group of end air valve control components 4. Branch switch valves 15 and pressure gauges 16 are respectively installed on the branch air guide pipes 14. The main air inlet pipe 12 is equipped with a main air inlet valve 17.

[0020] Furthermore, the controller 5 is connected in linkage with the check valve 9, vent valve 10, duct distribution valve 15 and pressure gauge 16 of the terminal air valve control assembly 4. The controller 5 controls the opening and closing of the check valve 9, vent valve 10 and duct distribution valve 15 through the data transmitted by the pressure gauge 16.

[0021] Furthermore, a limiting post 18 is provided on the support 2 on the side of the air spring damping group. The limiting post 18 is fixed on the support 2. A limiting baffle 19 is provided on the screen body 1 above the limiting post 18 to avoid excessive amplitude of the air spring damping group, limit the maximum amplitude position of the air spring damping group, and avoid damage to the air spring due to insufficient pressure. At the same time, when the equipment is under maintenance, it bears the weight of the screen machine without pressure, preventing the weight of the screen machine from falling directly on the uninflated air spring, thereby damaging the air spring.

[0022] The duct distribution assembly described in this utility model is housed within the control box 21 of the controller 5. The control box 21 has a duct interface 30 on its side. The control box 21 of the controller 5 is equipped with a control panel 22, a start button 23, a stop button 24, and an emergency stop button 25. The control panel 22 has a setting button 26, a manual mode button 27, and an automatic mode button 28. The control panel 22 displays the status window 29 of the air spring shock absorber 3, including the set pressure and measured pressure data for each branch air pipe 14. The start button 23 initializes the control system and executes valve switching operations according to the set pressure, opening the main air inlet valve 17 and branch valves 15 within the control system. The stop button 24 executes the aforementioned valve... The valve closing operation allows the system to handle the state of no input air pressure, facilitating subsequent maintenance and adjustment. Automatic mode: After activation, the system will adjust the actual pressure of each air spring according to the set pressure. When the pressure decreases, the main air inlet valve 17 and the branch switch valve 15 will be opened for inflation. After reaching the calibrated value, the valve will be closed. Manual mode: All interlocking relationships are disconnected, and all valves are manually controlled. The main air inlet valve 17 and the branch switch valve 15 are designed as proportional valves, which can be opened to a certain degree according to the input signal. All valves designed in this scheme are electric valves, which can be uniformly controlled by the controller 5. The high-pressure air self-vibrating screen control box 21 is supplied and enters the terminal air valve control component 4 through the branch air pipe 14. High-pressure air enters the multi-channel distributor 7 through the inlet pipe 11, which divides the high-pressure air into multiple outlet pipes 8 to supply air and pressure to each air spring damper 3. A one-way valve 9 is installed on each outlet pipe 8 to prevent air leakage. The vent valve 10 is mainly used for maintenance and venting. The multi-channel distributor 7 and multi-way distribution cylinder 13 can distribute the high-pressure air evenly twice, which can ensure the damping effect of the entire air spring damper 3. At the same time, the pressure can be adjusted according to the monitored measured pressure, which can quickly change the system stiffness and actively skip the resonance zone for intelligent damping, ultimately increasing the service life of the vibrating screen. Due to the above structure, this utility model has the advantages of simple structure, good damping effect, avoidance of resonance zone, and increased equipment service life.

Claims

1. An air-resistant vibration-damping banana vibrating screen, comprising a screen body and a support frame, characterized in that... The screen body is connected to the support via an air spring damping system. The air spring damping system includes at least four sets of air spring damping groups, at least four sets of end air valve control components, a controller, and an air duct distribution pipe group. The air spring damping groups are respectively located at the left, right, front, and rear positions of the screen body. Each air spring damping group includes at least one air spring damper. The upper and lower sides of the air spring damper are connected to the screen body and the support, respectively. The air inlet of the air spring damper is connected to the air outlet of each set of end air valve control components. The air inlet of the end air valve control components is connected to the air outlet of the air duct distribution pipe group. The air duct distribution pipe group is connected to the controller.

2. The air-resistant vibration-damping banana vibrating screen according to claim 1, characterized in that... Each set of end air valve control components is provided with a housing, and a multi-channel distributor is provided inside the housing. The multi-channel distributor has one air inlet and at least one air outlet. The air outlet extends out of the housing through a branch air pipe and is connected to an air spring shock absorber. A one-way valve is installed on each branch air pipe, and a vent valve is installed on the branch air pipe behind the one-way valve. The air inlet is connected to the air outlet of the air duct distribution pipe group through a branch air inlet pipe.

3. The air-resistant vibration-damping banana vibrating screen according to claim 1, characterized in that... The aforementioned duct distribution assembly includes a main high-pressure air inlet pipe, a multi-way distribution cylinder, and branch air guide pipes. Each multi-way distribution cylinder has a high-pressure air inlet and multiple air guide ports. The high-pressure air inlet is connected to the main high-pressure air inlet pipe, and the air guide ports are connected to the branch air guide pipes. Each branch air guide pipe is connected to the branch air inlet pipe of each group of end air valve control components. Each branch air guide pipe is equipped with a branch switch valve and a pressure gauge. The main high-pressure air inlet pipe is equipped with a main air inlet valve.

4. The air-resistant vibration system type banana vibrating screen according to claim 1, characterized in that... The controller is connected in linkage with the check valve, vent valve, branch switch valve of the air duct distribution group and pressure gauge of the terminal air valve control component. The controller controls the opening and closing of the check valve, vent valve and branch switch valve through the data transmitted by the pressure gauge.

5. The air-resistant vibration-damping banana vibrating screen according to claim 1, characterized in that... The air spring damping assembly has a limiting post on the side support, which is fixed to the support. A limiting baffle is provided on the screen body above the limiting post to prevent excessive amplitude of the air spring damping assembly and limit the maximum amplitude position of the air spring damping assembly. At the same time, when the equipment is under maintenance, it bears the weight of the screen machine without pressure, preventing the weight of the screen machine from falling directly on the uninflated air spring and thus damaging the air spring.

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