A transducer compression and energy recovery system

Abstract

This utility model discloses a transducer pressing and energy recovery system, comprising: an assembly device for pressing the transducer, including: a screwing rod with a driving part that cooperates with the fasteners of the transducer; symmetrical transmission rods on the screwing rod to ensure consistent force on both sides during operation; and an energy recovery system, including: an energy storage component for storing energy, which connects to the positive and negative terminals of the transducer during energy recovery. The energy storage component outputs electrical energy to power the electrical equipment. This utility model adopts a T-shaped structure with balanced force distribution, and is equipped with a torque feedback system and a high-precision servo motor, greatly improving reliability. Furthermore, a pressure sensor can detect the pressure of the T-shaped wrench on the transducer in real time. When the screw shortens, the lifting platform automatically rises to ensure consistent pressure during the pressing process. It can also recover and store the energy released during the pressing process due to the compression of the piezoelectric ceramic sheet for powering the electrical equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of ultrasonic transducer production equipment, specifically relating to a transducer pressing and energy recovery system. Background Technology

[0002] Transducers are pressed using fasteners, and the tightening process is mostly done manually, relying solely on experience to judge the tightness, which leads to significant deviations. Alternatively, a torque wrench is used for pressing, resulting in uneven force distribution. This uneven force causes the piezoelectric ceramic plates inside the transducer to easily shift during normal operation. Furthermore, during tightening, the piezoelectric ceramic plates release high voltage due to compression, posing a safety hazard to operators. On the one hand, there is energy loss, and on the other hand, to isolate the generated high voltage, clamps need to be fitted at both ends of the piezoelectric ceramic plates, releasing energy through cement resistors, which increases the workload considerably. Therefore, it is crucial to obtain a transducer pressing and energy recovery system that overcomes the above-mentioned defects. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a transducer suppression and energy recovery system, comprising:

[0004] An assembly device for pressing a transducer includes: a screwing rod, a driving part on the screwing rod that cooperates with the fasteners of the transducer, and transmission rods symmetrically arranged on the screwing rod to ensure that the force on both sides of the screwing rod is consistent when it is working;

[0005] An energy recovery system includes: an energy storage component for storing energy, which is connected to the positive and negative terminals of a transducer when recovering energy.

[0006] The energy storage component outputs electrical energy to power the electrical equipment. The energy storage component includes a supercapacitor bank, which is connected to the electrical equipment via an inverter. The inverter converts the AC power to power the electrical equipment. After the voltage drops to a preset value, a relay switches the connection of the electrical equipment to the mains power, and the supercapacitor bank continues to collect energy from the transducer.

[0007] The assembly device also includes a lifting platform and a servo motor located above the transducer. The output shaft of the servo motor is connected to the screw rod. The lifting platform drives the transducer to rise so that the driving part of the screw rod drives the fastener of the transducer to achieve pressing. A pressure sensor is installed on the lifting platform, and the transducer is placed on the pressure sensor. The output shaft of the servo motor is connected to the screw rod through a torque sensor.

[0008] The added pressure sensor can detect the pressure exerted on the transducer by the T-shaped structure during the screw tightening process.

[0009] The lifting platform includes at least one first electric lifting rod and a worktable fixed to the lifting end of the first electric lifting rod.

[0010] With the above technical solution, the fasteners will gradually shorten during the tightening process. This may cause the T-shaped structure to gradually reduce its stress range due to the shortening of the fasteners, making it impossible to guarantee the perpendicularity of the fasteners. The fasteners may also shift, leading to abnormalities in transducer pressing. It may also cause abnormalities such as stripping at the tail of the fastener, affecting the appearance and maintenance. Therefore, a lifting platform is added. In addition, the lifting platform is also compatible with transducer pressing at different heights, with strong compatibility.

[0011] It also includes a transmission component, on which a groove is formed, and on both sides of the groove the transmission component forms a connecting arm. A through hole is formed on the connecting arm, and at least part of both ends of the transmission rod are fixed to the through hole. The output shaft of the servo motor is connected to the center of the transmission component through a torque sensor.

[0012] Through the above technical solution, this utility model can ensure high precision and stability by using a servo motor to tighten the fasteners.

[0013] It also includes a bracket, on which the servo motor is mounted; the two transmission rods and the screw rod form a Y-shaped or T-shaped structure.

[0014] Through the above technical solution, the T-shaped torque handle ensures that the force on the left and right sides is consistent, so as to prevent the piezoelectric ceramic sheet from shifting or breaking due to uneven force on the left and right sides during the pressing process.

[0015] The energy recovery system further includes a first contact and a second contact mounted on a bracket. At least a first contact point is partially mounted on the first contact, and at least a second contact point is partially mounted on the second contact. When the lifting platform rises, the positive and negative poles of the piezoelectric element of the transducer contact the first and second contacts respectively to achieve a conductive connection. The energy recovery system also includes a controller. The input terminal of the controller is electrically connected to a torque sensor and a pressure sensor, and the output terminal of the controller is electrically connected to a servo motor and a first electric lifting rod. The energy recovery system also includes an impedance analyzer, which measures the transducer's data in real time and transmits it to the controller; and / or, the energy recovery system also includes a display screen electrically connected to the controller.

[0016] Through the above technical solution, the transducer has high torque requirements during the pressing process. Therefore, the current torque value needs to be detected in real time. When the preset torque is reached, it should be stopped in time to avoid cracking of the piezoelectric ceramic sheet due to excessive pressure. Insufficient torque is also not acceptable, as it will cause the piezoelectric ceramic sheet to easily shift during operation. Therefore, a torque sensor is added.

[0017] The impedance analyzer is connected to the transducer via a thirteenth relay.

[0018] The supercapacitor bank is connected to an inverter via a ninth relay. The supercapacitor bank is connected to a transducer via a twelfth relay. The inverter is connected to electrical equipment via tenth and eleventh relays. The inverter uses the converted AC power to power the electrical equipment. After the voltage drops to a certain value, the tenth relay disconnects the supercapacitor bank from the eleventh relay, connecting the electrical equipment directly to the mains power. The supercapacitor bank needs to continue collecting energy before power supply is restored.

[0019] Compared with the prior art, the advantages of this utility model are as follows: This utility model adopts a T-shaped structure with balanced force distribution, and is equipped with a torque feedback system and a high-precision servo motor, which greatly improves reliability; and the pressure of the T-shaped wrench on the transducer can be detected in real time by a pressure sensor. When the screw becomes shorter, the lifting platform automatically rises to ensure consistent pressure during the pressing process. Furthermore, the energy generated during the pressing process can be recovered and stored for power supply of electrical equipment. Attached Figure Description

[0020] Figure 1 This is the front view of the present utility model;

[0021] Figure 2 The circuit of this utility model Figure 1 ;

[0022] Figure 3 The circuit of this utility model Figure 2 ;

[0023] Figure 4 The circuit of this utility model Figure 3 ;

[0024] Figure 5 The circuit of this utility model Figure 4 ;

[0025] Figure 6 The circuit of this utility model Figure 5 ;

[0026] Figure label:

[0027] 101 Tightening rod; 102 Transducer; 1021 Positive and negative poles; 103 Drive unit; 104 Transmission rod; 105 Transmission component; 1051 Groove; 1052 Connecting arm; 1053 Through hole; 106 Bracket; 107 Servo motor; 108 Lifting platform; 109 First electric lifting rod; 110 Worktable; 111 Fixed platform; 112 Pressure sensor; 113 Torque sensor; 114 Fastener;

[0028] 201 Energy storage component; 202 First contact; 203 Second contact; 204 First contact; 205 Second contact; U1 Controller; U21 Inverter; U22 Impedance analyzer. Detailed Implementation

[0029] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0030] Referring to the accompanying drawings, this utility model adopts the following technical solution: this utility model provides a transducer 102 suppression and energy recovery system, comprising:

[0031] An assembly device for pressing transducer 102 includes: a screw rod 101, a drive part 103 that cooperates with fastener 114 of transducer 102 on the screw rod 101, and transmission rods 104 symmetrically provided on the screw rod 101 to ensure that the force on both sides of the screw rod 101 is consistent when working.

[0032] It also includes a bracket 106, on which the servo motor 107 is mounted; the two transmission rods 104 and the screw rod 101 form a Y-shaped or T-shaped structure.

[0033] Through the above technical solution, the T-shaped torque handle ensures that the force on the left and right sides is consistent, so as to prevent the piezoelectric ceramic sheet of the transducer 102 from shifting or breaking due to uneven force on both sides during the pressing process.

[0034] Since the servo motor 107 of the fastener 114 is fixed on the bracket 106, its height will not change. However, the fastener 114 will continuously shorten during rotation. This will result in a shorter effective contact between the fastener 114 and the T-shaped structure, causing serious consequences: 1. Stripping: The T-shaped structure has a large torque. If the tail of the fastener 114 does not have sufficient force range, it is very likely that the tail of the fastener 114 will strip. 2. The T-shaped structure applies pressure when contacting the tail of the fastener 114. Sufficient pressure can ensure the perpendicularity of the fastener 114 and make the rotation of the fastener 114 smoother. If the pressure is lost too early, the perpendicularity of the fastener 114 cannot be guaranteed. During the pressing process, the fastener 114 may deviate from its sag by a certain angle when screwed in. This will cause the threads inside the transducer 102 to strip, which will make the fastener 114 easy to loosen during the operation of the transducer 102. It may also cause the transducer 102 to be subjected to inconsistent forces on the left and right sides during the pressing process, affecting the performance of the transducer 102 itself.

[0035] Therefore, in this invention, a pressure sensor 112 and a lifting platform 108 are used to solve this drawback. In this embodiment, the assembly device also includes a lifting platform 108 and a servo motor 107 located above the transducer 102. The output shaft of the servo motor 107 is connected to the screw rod 101. The lifting platform 108 drives the transducer 102 to rise so that the driving part 103 of the screw rod 101 drives the fastener 114 of the transducer 102 to achieve pressing. A pressure sensor 112 is installed on the lifting platform 108, and the transducer 102 is placed on the pressure sensor 112; the output shaft of the servo motor 107 is connected to the screw rod 101 through a torque sensor 113.

[0036] The pressure sensor 112 continuously monitors the real-time pressure. When the pressure decreases, the platform is raised in time to ensure that the pressure remains consistent in real time. The lifting platform 108 only descends to the initial position after the torque sensor detects that the preset torque value has been reached.

[0037] The added pressure sensor 112 can detect the pressure exerted on the transducer 102 by the T-shaped structure during the screw tightening process.

[0038] The lifting platform 108 includes at least one first electric lifting rod 109 and a worktable 110 fixed to the lifting end of the first electric lifting rod 109.

[0039] Through the above technical solution, during the tightening process of fastener 114, fastener 114 will gradually shorten, which may cause the T-shaped structure to gradually reduce its stress range due to the shortening of fastener 114, making it impossible to guarantee the perpendicularity of fastener 114. Fastener 114 may also deviate, causing abnormal pressing of transducer 102, and may also cause abnormal phenomena such as stripping at the tail of fastener 114, affecting appearance and maintenance. Therefore, lifting platform 108 is added. In addition, lifting platform 108 is also compatible with pressing transducers 102 of different heights, with strong compatibility.

[0040] It also includes a transmission component 105, on which a groove 1051 is formed. Connecting arms 1052 are formed on both sides of the groove 1051. Through holes 1053 are formed on the connecting arms 1052. At least part of both ends of the transmission rod 104 are fixed to the through holes 1053. The output shaft of the servo motor 107 is connected to the center of the transmission component 105 through a torque sensor 113.

[0041] Through the above technical solution, this utility model can ensure high precision and stability by using the servo motor 107 to tighten the fastener 114.

[0042] An energy recovery system includes an energy storage component 201 for storing energy and connecting to the positive and negative terminals 1021 of a transducer 102 during energy recovery. The energy recovery system can be integrated into a box, connected via wires to a pressure sensor 112, a torque sensor 113, and first contacts 204 and 205. This box can be mounted on a bracket 106, with the first contacts 204 and 205 connected via wires to a circuit board within the bracket 106.

[0043] The energy storage component 201 outputs electrical energy to power electrical equipment. The energy storage component 201 includes a supercapacitor bank, which is connected to the electrical equipment via an inverter U21. The inverter U21 converts the AC power to power the electrical equipment. After the voltage drops to a preset value, a relay switches the connection of the electrical equipment to the mains power, and the supercapacitor bank continues to collect energy from the transducer 102.

[0044] The energy recovery system also includes a first contact 202 and a second contact 203 mounted on the bracket 106. The first contact 202 is at least partially equipped with a first contact 204, and the second contact 203 is at least partially equipped with a second contact 205. When the lifting platform 108 rises, the positive and negative poles 1021 of the piezoelectric element of the transducer 102 contact the first contact 204 and the second contact 205 respectively to achieve conductive connection.

[0045] The system employs a first contact 204 and a second contact 205 mounted on a bracket 106. After the transducer 102 is placed, these contacts automatically contact and connect with the positive and negative terminals 1021 of the transducer 102 as the lifting platform 108 rises. The high voltage released by the piezoelectric ceramic sheet is collected in a supercapacitor bank. The system then detects the voltage; once a preset voltage value is reached, the system switches via the tenth relay to supply power for equipment lighting. If the voltage falls below the preset minimum value, the system switches back to mains power via the eleventh relay.

[0046] The first contact 204 corresponds to the transducer + of relay K12 in the diagram; the second contact 205 corresponds to the two contacts of transducer - in the diagram.

[0047] In this embodiment, the first contact 202 and the second contact 203 can be installed on the bracket 106, or a separate bracket can be installed on the bracket to install the first contact 202 and the second contact 203. The first contact 202 and the second contact 203 can have a certain degree of elasticity, meaning that they can deform appropriately during the upward movement of the transducer 102.

[0048] This utility model can monitor in real time online. It is connected to an impedance analyzer U22. During the pressing process of the transducer 102, its dynamic and static parameters will change in a regular manner and be detected in real time. When the parameters reach the expected value, the servo motor 107 will stop rotating in time. If a major abnormality occurs, the system will issue an alarm and display "parameter abnormality" on the display screen. This facilitates timely handling and tracking.

[0049] The energy recovery system also includes a controller U1, whose input terminals are electrically connected to a torque sensor 113 and a pressure sensor 112, and whose output terminals are electrically connected to a servo motor 107 and a first electric lifting rod 109. The energy recovery system also includes an impedance analyzer U22, which measures data from the transducer 102 in real time and transmits it to the controller U1; the energy recovery system also includes a display screen electrically connected to the controller U1.

[0050] Through the above technical solution, the transducer 102 has high torque requirements during the pressing process, so the current torque value needs to be detected in real time. When the preset torque is reached, it should be stopped in time to avoid cracks in the piezoelectric ceramic sheet due to excessive pressure. Insufficient torque is also not acceptable, as it will cause the piezoelectric ceramic sheet to easily shift during operation. Therefore, a torque sensor 113 is added.

[0051] The impedance analyzer U22 is connected to the transducer 102 via the thirteenth relay.

[0052] The supercapacitor bank is connected to the inverter U21 via the ninth relay. The supercapacitor bank is connected to the transducer 102 via the twelfth relay. The inverter U21 is connected to the electrical equipment via the tenth and eleventh relays. The inverter U21 uses the converted AC power to power the electrical equipment. After the voltage drops to a certain value, the tenth relay disconnects the supercapacitor bank from the eleventh relay, directly connecting the electrical equipment to the mains power. The supercapacitor bank needs to continue collecting energy before power supply is restored.

[0053] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, and the pressure of the T-shaped wrench on the transducer 102 can be detected in real time by the pressure sensor 112. When the screw becomes shorter, the lifting platform 108 automatically rises to ensure consistent pressure during the pressing process. Furthermore, the energy generated during the pressing process can be recovered and stored for power supply of electrical equipment.

[0054] The working process of this utility model is as follows:

[0055] The servo motor 107 is fixed on the bracket 106. The output shaft of the servo motor 107 is connected to the torque sensor 113. The torque sensor 113 is connected to the transmission component 105 and the T-shaped structure. Finally, the T-shaped structure is directly connected to the fastening screw 114 of the transducer 102, that is, a recess is made at the bottom of the screw rod 101 to cooperate with the fastener 114. The fixed platform 111 is installed on the pressure sensor 112, the transducer 102 is placed on the fixed platform 111, and the pressure sensor 112 is fixed on the worktable 110.

[0056] First, the required torque and pressure values ​​are input via the display screen. Based on the set pressure value, the microcontroller controls the lifting platform 108 to rise. The pressure sensor 112 collects the pressure value in real time. Once the collected pressure value reaches the preset value, the lifting platform 108 stops rising. The servo motor 107 rotates to begin tightening the screws. Based on the data collected by the torque sensor and the preset value, the servo motor 107 initially uses a relatively large step size and rotates quickly until the torque reaches near the set value. Then, it uses a small step size and rotates slowly, sampling multiple times. Once the torque reaches the set value, the microcontroller controls the servo motor 107 to stop rotating. During the tightening of the fasteners 114 by the servo motor 107, the lifting platform 108 dynamically maintains the pressure value of the transducer 102 in real time by comparing the data collected by the pressure sensor 112 with the preset value.

[0057] Through the switching of the twelfth relay, the positive and negative terminals 1021 of the supercapacitor are connected to the positive and negative terminals 1021 of the transducer 102, recovering the electricity released by the piezoelectric ceramic sheet due to compression and starting to charge the supercapacitor bank. During the energy recovery process, an online impedance analyzer U22 is connected to measure various data of the transducer 102 in real time and send them to the controller U1. The controller U1 judges based on the real-time data collected from the transducer 102. If the data meets the expectations, the installation is marked as complete. If the data is abnormal, the torque and pressure values ​​are adjusted appropriately. If the values ​​still do not meet the standards, an error is displayed on the screen.

[0058] In this embodiment, the electrical device is a lighting fixture. A voltage detection circuit is connected to the supercapacitor bank. The voltage detection consists of two voltage divider resistors R210 and R212 connected in series across the positive and negative terminals of the supercapacitor bank. The connection point of the two voltage divider resistors R210 and R212 is connected to the analog-to-digital converter (ADC) pin of the controller U1. As the collected energy accumulates, once the voltage reaches a specified value, a relay connects the supercapacitor bank to the inverter U21. The inverter U21 then uses the converted AC power to power the lighting fixture. As energy is consumed, the voltage gradually decreases until it reaches a certain value. Then, the tenth relay disconnects the supercapacitor bank from the eleventh relay, directly connecting the lighting fixture to the mains power. The supercapacitor bank needs to continue collecting energy to restore power supply.

[0059] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A transducer suppression and energy recovery system, characterized in that: include: An assembly device for pressing a transducer (102) includes: a screw rod (101), a drive part (103) on the screw rod (101) that cooperates with a fastener (114) of the transducer (102), and transmission rods (104) symmetrically provided on the screw rod (101) to ensure that the force on both sides of the screw rod (101) is consistent when it is working; An energy recovery system includes: an energy storage component (201) for storing energy and connected to the positive and negative terminals (1021) of a transducer (102) when recovering energy.

2. The transducer suppression and energy recovery system according to claim 1, characterized in that: The energy storage component (201) outputs electrical energy to power electrical equipment.

3. The transducer suppression and energy recovery system according to claim 2, characterized in that: The energy storage component (201) includes a supercapacitor bank. The supercapacitor bank is connected to an electrical device via an inverter (U21). The inverter (U21) converts the AC power to power the electrical device. After the voltage drops to a preset value, the electrical device is connected to the mains power via a relay. The supercapacitor bank continues to collect energy from the transducer (102).

4. The transducer suppression and energy recovery system according to claim 1, characterized in that: The assembly device also includes a lifting platform (108) and a servo motor (107) located above the transducer (102). The output shaft of the servo motor (107) is connected to the screw rod (101). The lifting platform (108) drives the transducer (102) to rise so that the drive part (103) of the screw rod (101) drives the fastener (114) of the transducer (102) to achieve pressing.

5. The transducer suppression and energy recovery system according to claim 4, characterized in that: A pressure sensor (112) is installed on the lifting platform (108), and a transducer (102) is placed on the pressure sensor (112); And / or, the output shaft of the servo motor (107) is connected to the screw rod (101) via a torque sensor (113). And / or, the lifting platform (108) includes at least one first electric lifting rod (109) and a worktable (110) fixed to the lifting end of the first electric lifting rod (109). And / or, it also includes a transmission component (105), on which a groove (1051) is provided, and on both sides of the groove (1051) the transmission component (105) forms a connecting arm (1052), and a through hole (1053) is provided on the connecting arm (1052). At least part of both ends of the transmission rod (104) are fixed to the through hole (1053), and the output shaft of the servo motor (107) is connected to the center of the transmission component (105) through a torque sensor (113).

6. The transducer suppression and energy recovery system according to claim 5, characterized in that: It also includes a bracket (106), on which the servo motor (107) is mounted; And / or, the two drive rods (104) and the screw rod (101) form a Y-shaped or T-shaped structure.

7. The transducer suppression and energy recovery system according to claim 1, characterized in that: The energy recovery system also includes a first contact (202) and a second contact (203) mounted on a bracket (106). At least a first contact (204) is mounted on the first contact (202) and at least a second contact (205) is mounted on the second contact (203). When the lifting platform (108) rises, the positive and negative poles (1021) of the piezoelectric element of the transducer (102) contact the first contact (204) and the second contact (205) respectively to achieve conductive connection.

8. The transducer suppression and energy recovery system according to claim 7, characterized in that: The energy recovery system also includes a controller (U1), the input of which is electrically connected to a torque sensor (113) and a pressure sensor (112), and the output of which is electrically connected to a servo motor (107) and a first electric lifting rod (109).

9. The transducer suppression and energy recovery system according to claim 7, characterized in that: The energy recovery system also includes an impedance analyzer (U22) that measures data from the transducer (102) in real time and transmits it to the controller (U1); and / or, the energy recovery system also includes a display screen that is electrically connected to the controller (U1).

10. The transducer suppression and energy recovery system according to claim 3, characterized in that: The supercapacitor bank is connected to an inverter (U21) via a ninth relay. The supercapacitor bank is connected to a transducer (102) via a twelfth relay. The inverter (U21) is connected to electrical equipment via a tenth and eleventh relay. The inverter (U21) uses the converted AC power to power the electrical equipment. After the voltage drops to a preset value, the tenth relay disconnects the supercapacitor bank from the eleventh relay, directly connecting the electrical equipment to the mains power. The supercapacitor bank needs to continue collecting energy until the preset value is reached, after which the power supply is restored.

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