Energy-saving efficient activation feeder

Abstract

The invention relates to an energy-saving efficient activation feeding machine which comprises a vibration excitation box body, a vibration isolation spring set, a frequency conversion control system, a pneumatic control adjusting system, an execution air cylinder and an equipment support. The excitation motor comprises a motor body, an eccentric block and a dustproof shell; the frequency conversion control system comprises a frequency converter, an auxiliary element and an electric control cabinet; the pneumatic control adjusting system comprises an electric proportional valve, a filter, a stop valve, an exhaust valve and a pneumatic control cabinet. The execution air cylinder comprises an air cylinder body, a piston, an air cylinder spring, an air cylinder cover and an air entraining pipeline. The equipment support is welded and fixed to the hardened ground, the spring seat is installed on the upper top face of the equipment support, the metal straight column spring is arranged in the spring seat, the shock excitation box body is elastically connected with the equipment support through the metal straight column spring, the shock excitation motor is fixed to one side of the shock excitation box body, and the shock excitation motor is electrically connected with an external power circuit through the frequency conversion control system. According to the invention, the consumption of electric energy and compressed air is reduced to a low level, the cost is lower, and the feeding regulation capability and the self-protection capability are high.

Description

Technical Field

[0001] The invention belongs to novel bulk material conveying equipment, and in particular relates to an energy-saving and high-efficiency activated feeder. Background Art

[0002] The activated feeder, a rigid, nonlinear resonant feeding device, originated in the United States and was introduced to China 20 years ago. Designed to handle large quantities of bulk materials, compared to traditional conveying equipment, the activated feeder features a large opening, symmetrical feeding, a dual-mass structure, no gate, and automatic locking upon shutdown. The activated feeder requires no personnel and boasts exceptional durability and adaptability. Since its introduction to China, the activated feeder has undergone considerable technological development and upgrades. Currently, it offers a variety of technical approaches: The three-phase asynchronous motor is equipped with an eccentric block, and the eccentric block is equipped with a variable force wheel device as mentioned in CN213976164U, which reduces the rotation torque by increasing the air pressure and thus adjusts the exciting force; The six-pole vibration motor is equipped with a frequency converter to make the speed of the vibration motor close to the hard nonlinear resonance range, such as the variable frequency control method mentioned in CN203229227U, which changes the speed and thus adjusts the exciting force by adjusting the current frequency of the input motor; The eight-pole motor is equipped with a pneumatic adjustment device, such as the vibration motor equipped with a pneumatic adjustment device mentioned in CN206313599U, which increases the rotational torque by increasing the air pressure, thereby adjusting the exciting force.

[0003] The above regulation methods encompass all major existing technical solutions. They all enable both local and remote regulation, meeting the basic needs of various power plants and shipping terminals. They have a significant presence both domestically and internationally, with the Asian market exceeding 2 billion yuan. However, existing regulation methods are relatively new and often have various shortcomings.

[0004] The technology described in CN213976164U requires a three-phase asynchronous motor and an eccentric mass. This technology was an outdated method before the widespread use of vibration motors. The advent of vibration motors, which integrate the three-phase asynchronous motor and eccentric mass, offers improved integrity and mechanical efficiency compared to the older technology, while significantly reducing power consumption. Therefore, CN213976164U suffers from significant energy consumption issues. Furthermore, this technology requires the continuous consumption of large quantities of compressed air as a medium.

[0005] The frequency conversion method mentioned in CN203229227U, the activated feeder as a hard nonlinear resonance feeding equipment, has strict range requirements for its vibration frequency and needs to operate in the hard nonlinear resonance range. Therefore, the adjustment range is generally only around 35-37Hz, and the adjustment capability is very limited.

[0006] The variable force wheel method mentioned in CN206313599U requires an eight-pole motor with a relatively low rotational speed to keep the vibration frequency close to the hard nonlinear resonance range. However, an eight-pole motor requires many coils and consumes a lot of motor materials, making it expensive.

[0007] The above adjustment methods are all traditional mature technologies. The needs of energy saving and environmentally friendly operation were not fully considered at the beginning of the design. They consume a lot of electricity and compressed air when working. The consumption of copper and iron in the materials used in the supporting motors is also at a relatively high level. They do not fully utilize the related electronic control and energy-saving technologies that have matured in recent years. Summary of the Invention

[0008] In order to overcome the above-mentioned shortcomings of the existing technology, a new design has been made for the control system of the activated feeder. By deconstructing different traditional technologies and coordinating with the latest electronic control and energy-saving technologies, the present invention provides an energy-saving and efficient activated feeder equipment. The new equipment not only reduces the consumption of electricity and compressed air to a low level, but also controls and reduces its material cost. At the same time, the new equipment also has a stronger feeding adjustment ability and self-protection ability than the existing technical routes.

[0009] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an energy-saving and high-efficiency activated feeder, comprising an excitation box, a vibration isolation spring group, a frequency conversion control system, a pneumatic adjustment system, an execution cylinder and an equipment bracket; the excitation motor is a 6-pole or 4-pole vibration motor, comprising a motor body, an eccentric block and a dustproof housing, wherein eccentric blocks are installed on the protruding shafts at both ends of the motor body, and the dustproof housing is installed at both ends of the motor body by bolts to wrap the eccentric blocks; the vibration isolation spring group comprises a metal straight column spring and a spring seat; the frequency conversion control system comprises a frequency converter, auxiliary components and an electric control cabinet, wherein the frequency converter and auxiliary components are installed in the electric control cabinet. Inside the cabinet, the power supply and signal are connected to the internal frequency converter and auxiliary components through the line inlet at the bottom of the electric control cabinet; the pneumatic control adjustment system includes an electric proportional valve, a filter, a stop valve, an exhaust valve and an air control cabinet, wherein the electric proportional valve, the stop valve and the exhaust valve are all in the air control cabinet, and the external pressure air is led into the air control cabinet after passing through the filter, and is taken out from the air control cabinet after passing through the aforementioned valve, and is then led to the actuator cylinder after passing through the filter; the actuator cylinder includes a cylinder body, a piston, a cylinder spring, a cylinder head and an air bleed line, wherein the piston is placed in the cylinder body, the cylinder body is installed with a cylinder head by bolts, and a cylinder spring is installed between the cylinder head and the piston. Spring, an air bleed pipe is welded to the outside of the cylinder body and leads to the bottom of the cylinder body; the equipment bracket in the above structure is welded and fixed on the hardened ground, and a spring seat is installed on the upper top surface of the equipment bracket by bolts, and a metal straight column spring is arranged in the spring seat, which together form a vibration isolation spring group to elastically support the excitation box on the equipment bracket, and an excitation motor is fixedly installed on one side of the excitation box. The power cord of the motor control box passes through the dustproof shell through the frequency conversion control system and is connected to the motor body of the excitation motor. The motor body drives the eccentric block to rotate, and an executive cylinder is fixed on the eccentric block. The external pressure air enters the air control cabinet after passing through the stop valve and the filter, and is electrically After the air proportional valve and the exhaust valve are adjusted, they leave the air control cabinet, pass through the filter and are connected to the vicinity of the equipment by the main hard pipe, and then are divided into two branch hard pipes to both sides of the vibration motor. The branch hard pipe is converted into a branch hose and enters the interior of the vibration motor through a high-speed rotary joint installed on the dust-proof shell. The rotation centers of the aforementioned high-speed rotary joint, the actuator cylinder and the vibration motor are in the same axial position. The air bleed pipe fills the cylinder body with external pressure air, and the piston and the inner wall of the cylinder body are sealed. The external pressure air pushes the piston to compress the cylinder spring, causing the position of the piston to change, thereby changing the rotation center of mass of the actuator cylinder, and further changing the exciting force of the vibration motor.

[0010] When the excitation motor is a 6-pole motor, the frequency conversion control system outputs a current with a frequency of 30-40 Hz; when the excitation motor is a 4-pole motor, the frequency conversion control system outputs a current with a frequency of 20-30 Hz.

[0011] The cylinder body, piston, cylinder spring, cylinder head and air induction pipe are all metal parts. The cylinder body is a cup-shaped structure. The cylinder head is installed at the opening of the cylinder body by bolts. The cylinder spring is fixed between the cylinder head and the piston. The air induction pipe is connected from the bottom to the middle outside the cylinder body.

[0012] The inlet and outlet of the air control regulation system are both provided with filters. The electric proportional valve can adjust the pressure of the output air remotely or locally. The stop valve can be activated remotely or locally to maintain the internal pressure of the system during working hours. The exhaust valve can be activated remotely or locally to relieve the internal pressure of the system during non-working hours.

[0013] The number of sets of vibration isolation spring groups is an even number, and each set of vibration isolation spring groups consists of 2 spring seats and 1 metal straight column spring. There is a spring seat above and below the metal straight column spring. The lower spring seat is fixed to the upper plane of the equipment bracket, and the upper spring group is fixed to the lower plane of the excitation box.

[0014] The energy-saving and high-efficiency activated feeder related to the present invention has the following advantages: By using the frequency reduction operation principle, a 4-pole or 6-pole vibration motor can also achieve a hard nonlinear resonance state close to the hard nonlinear resonance range of the activated feeder, eliminating the need for an expensive and heavy 8-pole vibration motor. By reducing the number of motor coils, the consumption of copper and iron motor manufacturing materials is reduced. The exciting force can be changed by adjusting the actuator cylinder or the input current frequency. The effective adjustment range is larger than that of all current activated feeder types. By adopting the shut-off valve pressure control method, gas is consumed only during the equipment start-up and shutdown and pressure regulation stages. There is no consumption during most stable operation stages. The consumption of pressurized air in the entire operation cycle is very small, saving electricity resources and gas source-related equipment consumption.

[0015] In order to avoid the vibration motor being in an overly harsh working environment, the vibration motor of the activated feeder is installed outside the vibration box. After this solution reduces the weight of the motor, the center of mass of the equipment will be closer to the center of its symmetrical structure, the vibration state will be more stable and reliable, and the activated feeder will be in a horizontal reciprocating working state as much as possible, reducing the energy consumed by ineffective tilt vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front cross-sectional view of the present invention.

[0017] Figure 2 This is the frequency conversion electrical principle diagram of the present invention.

[0018] Figure 3 This is a diagram of the gas circuit connection of the motor of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] See also Figure 1 The present invention provides an energy-saving and efficient activated feeder, comprising an exciting box 1, an exciting motor 2, a vibration isolation spring group 3, a frequency conversion control system 4, an air control adjustment system 5, an executive cylinder 6 and an equipment bracket 7; wherein the exciting motor 2 is a three-phase asynchronous vibration motor, comprising a motor body 2.1, an eccentric block 2.2 and a dustproof shell 2.3, wherein the vibration isolation spring group 3 comprises a spring seat 3.1 and a metal straight column spring 3.2, wherein the frequency conversion control system comprises a frequency converter 4.1, an auxiliary component 4.2 and an electric control cabinet 4.3; wherein the air control adjustment system comprises an electric proportional valve 5.1, an exhaust valve 5.2, a stop valve 5.3, a filter 5.4, an air control cabinet 5.5, a main hard pipeline 5.6, a branch hard pipe 5.7, a branch hose 5.8, and a high-speed rotary joint 5.9; wherein the executive cylinder comprises a cylinder body 6.1, a piston 6.2, a cylinder spring 6.3, a cylinder head 6.4 and an air bleed pipeline 6.5. The equipment bracket 7 in the above structure is welded and fixed on the hardened ground 0. The upper top surface of the equipment bracket 7 is installed with a spring seat 3.1 by bolts. A metal straight column spring 3.2 is arranged in the spring seat 3.1, and together they form a vibration isolation spring group 3 to elastically support the excitation box 1 on the equipment bracket 7. An excitation motor 2 is fixedly installed on one side of the excitation box 1. The power cord of the motor control box passes through the dustproof shell 2.3 through the frequency conversion control system 4 and is connected to the motor body 2.1 of the excitation motor 2. The motor body 2.1 drives the eccentric block 2.2 to rotate. The actuator cylinder 2.3 is fixed on the eccentric block 2.2. The external pressure air enters the air control cabinet 5.5 after passing through the stop valve 5.3 and the filter 5.4, and leaves the air cabinet after being adjusted by the electric proportional valve 5.1 and the exhaust valve 5.2 in the cabinet. The control cabinet 5.5 is connected to the vicinity of the equipment by the main hard pipe 5.6 through the 5.4 filter and then divided into two branch hard pipes 5.7 to both sides of the vibration motor 2. The branch hard pipe 5.7 is converted into a branch hose 5.8 and enters the interior of the vibration motor 2 through the high-speed rotary joint 5.9 installed on the dustproof shell 2.3. The aforementioned high-speed rotary joint 5.9, the execution cylinder 6 and the rotation center of the vibration motor 2 are in the same axial position. The air bleed pipe 6.5 fills the cylinder body 6.1 with external pressure air. The piston 6.2 and the inner wall of the cylinder body 6.1 are sealed. The external pressure air pushes the piston 6.2 to compress the cylinder spring 6.4, so that the position of the piston 6.2 changes, thereby changing the rotation center of mass of the execution cylinder 6, and further changing the exciting force of the vibration motor 2.

[0021] In the above technical solution, when the excitation motor is a 6-pole motor, the frequency conversion control system outputs a current of 30-40Hz; when the excitation motor is a 4-pole motor, the frequency conversion control system outputs a current of 20-30Hz. The frequency conversion control system can be adjusted remotely or locally.

[0022] like Figure 2 As shown, the frequency conversion control system 4 of the present invention includes a frequency converter 4.1, auxiliary components 4.2, and an electric control cabinet 4.3, wherein the auxiliary component 2 includes a manual air switch GS1, a circuit breaker GS2, a contactor KM1, and a PE terminal. The power cord of the motor control box enters the electric control cabinet 4.3 from the outside. The three-phase live wires L1, L2, L3 and the neutral wire N of the three-phase four-wire power supply in the motor control box power cord are connected to the frequency converter 4.1 via the manual air switch (which can open and close the circuit locally), the circuit breaker GS2 (which cooperates with the control circuit to realize remote opening and closing of the circuit), and the contactor KM1. When the coil of the contactor KM1 is energized, the main contacts of the contactor KM1 close, connecting the three-phase power supply to the frequency converter. When the power is lost, the main contacts open to disconnect the power. The frequency converter 4.1 receives the three-phase power U1, V1, and W1 sent by the contactor KM1, performs AC-DC-AC conversion internally, and then sends the adapted three-phase power U, V, and W to the excitation motor 2. PE is the protective ground terminal. Figure 2 The circuit works as follows: closing manual air switch GS1, circuit breaker GS2 meets the conditions, contactor KM1 coil energizes, closing the main contact, inverter 4.1 energizes, and outputs power to drive vibration motor 2. Disconnecting manual air switch GS1 or circuit breaker GS2 de-energizes contactor KM1, stopping vibration motor 2. A remote control cable enters electrical control cabinet 4.3 from the outside. The signal power in the remote control cable controls auxiliary unit 4.2 through circuit breaker GS2 and inverter 4.1. The power supply in the motor control box's power cable is three-phase, four-wire, 380V AC, while the signal power in the remote control cable is 4-20mA DC.

[0023] like Figure 3 As shown, the motor air circuit of the present invention is connected to the pipe, and the external pressure air is transported to the vicinity of the equipment by the main hard pipe 5.6 after passing through the air control adjustment system 5. The main hard pipe 5.6 is divided into two branch hard pipes 5.7 and led to both sides of the vibration motor 2. After the branch hard pipe 5.7 is converted into a branch soft pipe 5.8, it enters the interior of the motor through the high-speed rotary joint 5.9 installed on the dustproof shell 2.3. The air duct 6.5 is connected to the high-speed rotary joint 5.9 and transports the pressure air to the interior of the actuator cylinder 6.

[0024] The advantage of using this feature is that the vibration frequency of the corresponding excitation motor can be adjusted to be close to the hard nonlinear resonance range of the activated feeder through frequency regulation. The inverter also has soft start and frequency band shielding functions, which can reduce the severe vibration of the equipment through the linear resonance range during the start and stop stages.

[0025] In the above technical solution, the cylinder body, piston, cylinder spring, cylinder head and air bleed pipe are all metal parts. The cylinder body is a cup-shaped structure. The cylinder head is installed at the opening of the cylinder body by bolts. The cylinder spring is fixed between the cylinder head and the piston. The air bleed pipe is connected from the bottom to the middle outside the cylinder body.

[0026] The advantage of adopting this feature is that the pneumatic structure of the metal structure has impact resistance and wear resistance, and the deadweight of the structure can meet the requirements of being a rotating eccentric.

[0027] In the above technical solution, the inlet and outlet of the air control regulating system are both provided with filters, the electrical proportional valve can remotely or locally adjust the pressure of the output air, the stop valve can be remotely or locally activated to maintain the internal pressure of the system during working hours, and the exhaust valve can be remotely or locally activated to relieve the internal pressure of the system during non-working hours.

[0028] The advantage of using this feature is that the air control adjustment system of the activated feeder only needs to maintain pressure during normal operation, and pressurized air is only consumed when the equipment is started and stopped, saving resources.

[0029] In the above technical solution, the vibration isolation spring group is composed of 2 spring seats and 1 metal straight column spring, and the number of sets of vibration isolation spring groups equipped on the activated feeder must be an even number.

[0030] The advantage of adopting this feature is that it keeps the activated feeder in a symmetrical structural arrangement, preventing the material from running off course after flowing through.

[0031] Example 1: An energy-saving and high-efficiency activated feeder, comprising an excitation box 1, an excitation motor 2, a vibration isolation spring group 3 (6-20 sets of vibration isolation spring groups, arranged in two rows, arranged in a line on the upper surface of the equipment bracket), a frequency conversion control system 4, an air control adjustment system 5, an actuator cylinder 6 and an equipment bracket 7; wherein the excitation motor 2 is a three-phase asynchronous vibration motor, comprising a motor body 2.1, an eccentric block 2.2 and a dustproof housing 2.3, wherein the vibration isolation spring group comprises a metal straight column spring 3.1 and a spring seat 3.2, wherein the frequency conversion control system comprises a frequency converter 4.1, auxiliary components 4.2 (including the aforementioned air switch, circuit breaker, contactor, grounding terminal and terminal block etc.) and an electric control cabinet 4.3 (the frequency converter and auxiliary components are installed in the electric control cabinet, and the power supply and signal are connected to the internal frequency converter and auxiliary components through the line inlet at the bottom of the electric control cabinet); the pneumatic control system includes an electric proportional valve 5.1, a filter 5.2, a stop valve 5.3, an exhaust valve 5.4 and an air control cabinet 5.5; the actuator cylinder includes a cylinder body 6.1, a piston 6.2, a cylinder spring 6.3, a cylinder head 6.4 and an air bleed pipe 6.5 (the piston is placed in the cylinder body, the cylinder head is fixed to the cylinder body by bolts, the cylinder spring is installed between the cylinder head and the piston, and the air bleed pipe is welded to the outside of the cylinder body and leads to the bottom of the cylinder body). The equipment bracket in the above-mentioned structure is welded and fixed on the hardened ground. The upper top surface of the equipment bracket is installed with a spring seat by bolts. A metal straight column spring is arranged in the spring seat, which together form a vibration isolation spring group to elastically support the excitation box on the equipment bracket. An excitation motor is fixedly installed on one side of the excitation box. The external power supply circuit is connected to the motor body of the excitation motor through the dustproof casing via the frequency conversion control system. The actuator cylinder is fixed on the eccentric block. The external pressurized air passes through the pressure air pipe and the air control adjustment system and then passes through the dustproof casing of the motor. It is connected to the air duct of the actuator cylinder in the form of a high-speed rotary joint. The interface center of the above-mentioned air duct and the pressure air pipe is located at the rotation center of the actuator cylinder and the eccentric block.

[0032] The excitation box is equipped with a 6-pole, three-phase asynchronous excitation motor. When the equipment starts, 30-40 Hz three-phase AC power is input to the excitation motor via an ACS580-01-062A-4+B056 or equivalent inverter. The excitation motor body begins to rotate the eccentric weight. At this time, the eccentric moments of the eccentric weight and the actuator cylinder are equal and opposite, and the excitation motor generates almost no excitation force. After the motor body speed increases to normal operating speed and stabilizes, the bleed air line delivers compressed air to the actuator cylinder to push the piston, causing the eccentric moment of the actuator cylinder to change. The excitation motor generates excitation force and enters a hard nonlinear resonance state, resuming normal operation. When the equipment is ready to stop, the compressed air in the actuator cylinder is removed through the bleed air line. The cylinder spring pushes the piston back to its original position, and the eccentric moments of the eccentric weight and the actuator cylinder are once again equal and opposite. The excitation force of the excitation motor returns to zero, and the power is then turned off and the equipment is shut down, completing a safe production cycle.

[0033] The power consumption of Example 1 of the present invention varies according to different models of equipment. Taking the activated feeder with a discharge capacity of 1,000 tons / hour as an example, the rated power of the supporting vibration motor used in this embodiment is 6 kilowatts, while the activated feeder with a discharge capacity of 1,000 tons / hour of the American activated feeder technology mentioned in CN213976164U is UC10×10, and the rated power of the supporting motor is 12.5Hp, which is equivalent to a power of approximately 9.3 kilowatts.

[0034] The air consumption of Example 1 of the present invention is very low, and compressed air is only consumed when the equipment is started and stopped. The volume of the execution cylinder is generally 1 cubic decimeter. The activation feeder generally runs 4-6 shifts a day, and the daily compressed air consumption of each unit is about 30 cubic decimeters. A conventional 0.7-kilowatt piston air compressor can meet the needs of less than 10 activation feeders in Example 1. The American activation feeder technology mentioned in CN213976164U requires continuous inflation, so every 4 activation feeders need to be equipped with a 3-5-kilowatt piston air compressor.

[0035] Taking the case of Example 1 of the present invention as an example for comparison, 8 activated feeders of the same model are used. The total electric power of Example 1 is 6×8+0.7×2=49.4kw, while the total electric power of the American activated feeder technology mentioned in CN213976164U is 9.3×8+3×2=80.4kw, which can reduce the power consumption by about 38.5%. Considering the various influencing factors in actual engineering, the actual reduction in power consumption should be no less than 35%.

[0036] Example 2: An energy-saving and efficient activated feeder, including an excitation box, which is equipped with a 4-pole three-phase asynchronous excitation motor. When the equipment is started, 20-30Hz three-phase AC power is input to the excitation motor through an ACS580-01-062A-4+B056 or equivalent frequency converter. The rest is the same as Example 1.

[0037] The motor body of the vibration motor starts to drive the eccentric block to rotate. At this time, the eccentric moments of the eccentric block and the actuator cylinder are equal and opposite, and the vibration motor generates almost no exciting force. After the speed of the motor body is increased to the normal operating speed and stabilizes, the air bleed pipe transports compressed air to the inside of the actuator cylinder to push the piston, causing the eccentric moment of the actuator cylinder to change. The vibration motor generates exciting force and enters a hard nonlinear resonance state and starts to work normally. When the equipment is ready to stop running, the compressed air inside the actuator cylinder is removed through the air bleed pipe, and the cylinder spring pushes the piston back to its original position. The eccentric moments of the eccentric block and the actuator cylinder are equal and opposite again, and the exciting force of the vibration motor returns to zero. At this time, the power is cut off and the machine is shut down to execute a safe production cycle.

[0038] The power consumption of Example 2 of the present invention varies according to different models of equipment. Taking the activated feeder with a discharge capacity of 1,000 tons / hour as an example, the rated power of the supporting vibration motor used in this embodiment is 5.4 kilowatts, while the activated feeder with a discharge capacity of 1,000 tons / hour of the American activated feeder technology mentioned in CN213976164U is UC10×10, and the rated power of the supporting motor is 12.5Hp, which is equivalent to a power of approximately 9.3 kilowatts.

[0039] The air consumption of Example 2 of the present invention is the same as that of Example 1, and both are lower than the air supply of conventional piston air compressors on the market, so that a small model can meet the use of a large number of activation feeders.

[0040] Taking the case of Example 2 of the present invention as an example for comparison, 8 activated feeders of the same model are used. The total electric power of Example 1 is 5.4×8+0.7×2=44.6kw, while the total electric power of the American activated feeder technology mentioned in CN213976164U is 9.3×8+3×2=80.4kw, which can reduce the power consumption by about 44.5%. Considering the various influencing factors in actual engineering, the actual reduction in power consumption should be no less than 40%.

[0041] It can be seen from the above embodiments that the embodiments of the present invention have a significant energy-saving effect.

[0042] The above description is only a specific embodiment of the present invention, but the scope of protection of the invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. An energy-saving and high-efficiency activated feeder, comprising an excitation box, a vibration isolation spring assembly, a frequency conversion control system, a pneumatic control adjustment system, an actuator cylinder, and an equipment bracket; characterized in that: The excitation motor is a three-phase asynchronous vibration motor, comprising a motor body and a dustproof housing, wherein eccentric blocks are installed on the protruding shafts at both ends of the motor body, and the dustproof housing is bolted to both ends of the motor body and wraps the eccentric blocks; the vibration isolation spring group comprises a metal straight column spring and a spring seat; the frequency conversion control system comprises a frequency converter, auxiliary components and an electric control cabinet, wherein the frequency converter and auxiliary components are installed in the electric control cabinet, and the power supply and signal are connected to the internal frequency converter and auxiliary components through the line inlet at the bottom of the electric control cabinet; the pneumatic control adjustment The system includes an electric proportional valve, a filter, a stop valve, an exhaust valve and an air control cabinet, wherein the electric proportional valve, the stop valve and the exhaust valve are all in the air control cabinet, and the external pressure air is led into the air control cabinet after passing through the filter, and then taken out from the air control cabinet after passing through the electric proportional valve, the stop valve and the exhaust valve, and then passed through the filter and led to the actuator cylinder; the actuator cylinder includes a cylinder body, a piston, a cylinder spring, a cylinder head and an air bleed pipe, wherein the piston is placed in the cylinder body, the cylinder head is installed on the cylinder body by bolts, and a cylinder is installed between the cylinder head and the piston. The spring and an air bleed pipe are welded to the outside of the cylinder body and lead to the bottom of the cylinder body. The equipment bracket is welded and fixed to the hardened ground. The spring seat is bolted to the upper top surface of the equipment bracket. The metal straight column spring is disposed within the spring seat. The excitation box is elastically connected to the equipment bracket via the metal straight column spring. An excitation motor is fixedly mounted on one side of the excitation box. The excitation motor is electrically connected to an external power circuit via a frequency conversion control system. The motor body drives the eccentric mass to rotate. The actuator cylinder is fixed to the eccentric mass. External pressurized air passes through the pressure air pipe, the air control adjustment system, and then passes through the dustproof housing of the motor. It is connected to the air bleed pipe of the actuator cylinder via a high-speed rotary joint. The center of the interface between the air bleed pipe and the pressure air pipe is located at the rotation center of the actuator cylinder and the eccentric mass. The air bleed pipe fills the cylinder body of the actuator cylinder with pressurized air. The piston of the actuator cylinder is sealed against the inner wall of the cylinder body. The pressurized air pushes the piston to compress the cylinder spring, causing the piston's position to change, thereby changing the common rotation center of the actuator cylinder and the eccentric mass, further changing the excitation force of the excitation motor.

2. The energy-saving and high-efficiency activated feeder according to claim 1, characterized in that: The excitation motor is a 6-pole motor, and the frequency conversion control system outputs a current at a frequency of 30-40 Hz; or, the excitation motor is a 4-pole motor, and the frequency conversion control system outputs a current at a frequency of 20-30 Hz.

3. The energy-saving and high-efficiency activated feeder according to claim 1 or 2, characterized in that: The cylinder body, piston, cylinder spring, cylinder head and air induction pipe are all metal parts. The cylinder body is a cup-shaped structure. The cylinder head is installed at the opening of the cylinder body by bolts. The cylinder spring is fixed between the cylinder head and the piston. The air induction pipe is connected from the bottom to the middle outside the cylinder body.

4. The energy-saving and high-efficiency activated feeder according to claim 1 or 2, characterized in that: The inlet and outlet of the air control regulation system are both provided with filters. The electric proportional valve can adjust the pressure of the output air remotely or locally. The stop valve can be activated remotely or locally to maintain the internal pressure of the system during working hours. The exhaust valve can be activated remotely or locally to relieve the internal pressure of the system during non-working hours.

5. The energy-saving and high-efficiency activated feeder according to claim 1 or 2, characterized in that: The number of sets of the vibration isolation spring groups is an even number, and each set of the vibration isolation spring groups is composed of two spring seats and one metal straight column spring.

6. The energy-saving and high-efficiency activated feeder according to claim 5, characterized in that: A spring seat is provided on the upper and lower sides of the metal column spring, the lower spring seat is fixed on the upper plane of the equipment bracket, and the upper spring group is fixed on the lower plane of the excitation box.

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