Electric roller speed adjusting system

Abstract

The utility model relates to an electric roller speed adjusting system which comprises a voltage stabilizing source circuit and a multi-gear adjusting circuit. The input end of the voltage stabilizing source circuit is connected with a power supply, the output end of the voltage stabilizing source circuit is connected with the input end of the multi-gear adjusting circuit, and the output end of the multi-gear adjusting circuit is connected with a motor; the multi-gear adjusting circuit is provided with at least two gears, and switching of the gears is achieved by controlling the relay. Multi-gear speed adjustment of the electric roller is achieved through the voltage stabilization source circuit and the multi-gear adjusting circuit, and the voltage stabilization source circuit conducts voltage stabilization adjustment on original power supply voltage; the output voltage or current is stabilized in a set range so as to meet the requirement of supplying power to the electric roller; secondly, the multi-gear adjusting circuit can output multi-gear voltage to the motor in a constant-current mode, the voltage can be selected and switched in the using process, and therefore the stability of speed regulation can be greatly improved, and compared with traditional voltage regulation and speed regulation, damage to the motor can be reduced, and the service life can be prolonged.

Description

Technical Field

[0001] The utility model discloses a speed regulation system, belonging to the technical field of electric rollers, and specifically relates to an electric roller speed regulation system. Background Art

[0002] An electric roller is a common industrial device, mainly used for conveying and transporting goods or materials. Electric rollers help enterprises improve production efficiency and operational effectiveness through automated and efficient goods transportation in modern industrial production and logistics. An electric roller is internally provided with an electric motor, and drives the roller to rotate through a transmission system (usually gear transmission or belt transmission). It is used for goods transportation in automated warehousing systems, such as goods handling in logistics centers, sorting centers, and warehouses. It is used for the transfer and flow control of components or finished products on a production line.

[0003] In the prior art, most electric rollers are driven by motors, and the traditional motor drive can only adjust the speed by adjusting the voltage during operation. This adjustment method is single, and frequent voltage rises and falls will lead to a decrease in the service life of the motor. Therefore, a stable and reliable electric roller speed regulation system is needed. Summary of the Utility Model

[0004] Utility Model Objective: To provide an electric roller speed regulation system to solve the above-mentioned problems.

[0005] Technical Solution: An electric roller speed regulation system, the speed regulation system includes: a voltage stabilizing source circuit and a multi-gear regulation circuit;

[0006] The input end of the voltage stabilizing source circuit is connected to a power supply, the output end is connected to the input end of the multi-gear regulation circuit, and the output end of the multi-gear regulation circuit is connected to a motor;

[0007] The multi-gear regulation circuit is provided with at least two gears, and the gear switching is realized by controlling a relay.

[0008] In a further embodiment, the front end of the multi-gear regulation circuit adopts a constant current source circuit, and the rear end adopts several gear circuits to realize gear switching; the gear circuit is composed of a relay and a resistor connected in series.

[0009] In a further embodiment, the multi-gear regulation circuit includes: operational amplifier U1A, operational amplifier U1B, operational amplifier U2A, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, triode Q1, capacitor C5, polarized capacitor C1, polarized capacitor C2, polarized capacitor C3, polarized capacitor C4, relay RL1, relay RL2;

[0010] One end of the resistor R1 inputs a voltage. The non-inverting input terminal of the operational amplifier U1A is connected to the other end of the resistor R1 and one end of the resistor R4 at the same time. The inverting input terminal of the operational amplifier U1A is connected to one end of the resistor R2 and one end of the resistor R3 at the same time. The other end of the resistor R2 is grounded. The negative power supply terminal of the operational amplifier U1A inputs a -5V voltage and is connected to the positive electrode of the polarized capacitor C1. The negative electrode of the polarized capacitor C1 is grounded. The non-inverting input terminal of the operational amplifier U2A is connected to the output terminal of the operational amplifier U1A and the other end of the resistor R3 at the same time. The output terminal of the operational amplifier U2A is connected to the base of the triode Q1. The positive power supply terminal of the operational amplifier U2A inputs a +24V voltage and is connected to the positive electrode of the polarized capacitor C3. The negative electrode of the polarized capacitor C3 is grounded. The inverting input terminal of the operational amplifier U2A is connected to the emitter of the triode Q1, one input end of the relay RL1, and one input end of the relay RL2 at the same time. The negative power supply terminal of the operational amplifier U2A inputs a -5V voltage and is connected to the negative electrode of the polarized capacitor C1. The positive electrode of the polarized capacitor C1 is grounded. The collector of the triode Q1 inputs a -24V voltage. The output terminal and the inverting input terminal of the operational amplifier U1B are connected to the other end of the resistor R4. The power supply terminals of the relay RL1 and the relay RL2 input a voltage. One output end of the relay RL1 is connected to one end of the resistor R5. One end of the resistor R6 is connected to the other end of the resistor R5. One output end of the relay RL2 is connected to one end of the resistor R7. One end of the resistor R8 is connected to the other end of the resistor R7. The non-inverting input terminal of the operational amplifier U1B is connected to one end of the capacitor C5, the other end of the resistor R6, and the other end of the resistor R8 at the same time and outputs a voltage to the motor. The other end of the capacitor C5 is grounded.

[0011] In a further embodiment, the voltage stabilizing source circuit includes: a voltage stabilizing source device D1, a voltage regulator U4, an operational amplifier U3A, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a polarized capacitor C6, a resistor RV1;

[0012] The 3rd pin of the voltage regulator device D1 and the 3rd pin of the voltage stabilizer U4 are connected to the input voltage. The 4th pin of the voltage regulator device D1 is grounded. The 1st pin of the voltage regulator device D1 is simultaneously connected to the 1st pin of the voltage stabilizer U4, one end of the resistor R9, and the non-inverting input terminal of the operational amplifier U3A. The 2nd pin of the voltage stabilizer U4 is simultaneously connected to one end of the resistor R10, the other end of the resistor R9, and the positive pole of the polarized capacitor C6. The other end of the resistor R10 and the other end of the polarized capacitor C6 are connected and grounded. The 2nd pin of the voltage regulator device D1 is connected to one end of the resistor R11 and grounded. The 2nd pin of the operational amplifier U3A is connected to the control terminal of the resistor RV1. One end of the resistor RV1 is connected to the other end of the resistor R11. The other end of the resistor RV1 is connected to the other end of the resistor R12. The output terminal of the operational amplifier U3A is connected to one end of the resistor R12 and outputs the voltage to the multi-gear adjustment circuit.

[0013] Beneficial effects: The utility model realizes multi-gear speed adjustment of the electric roller through a voltage regulator circuit and a multi-gear adjustment circuit. The voltage regulator circuit stabilizes the original power supply voltage through voltage regulation, so that the output voltage or current is stabilized within a set range to meet the requirements of power supply for the electric roller. Secondly, the multi-gear adjustment circuit can output multiple gears of voltage with constant current to the motor, which can be selected and switched during use, thereby greatly improving the stability of speed regulation. Compared with the traditional voltage regulation speed control, it can reduce the damage to the motor and improve the service life. Description of the Drawings

[0014] Figure 1 It is a working schematic diagram of the electric roller speed adjustment system of the utility model.

[0015] Figure 2 It is a schematic diagram of the multi-gear adjustment circuit of the utility model.

[0016] Figure 3 It is a schematic diagram of the voltage regulator circuit of the utility model. Detailed Embodiments

[0017] Next, the technical solutions of the utility model will be described clearly and completely in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the utility model.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] An electric roller speed regulation system, as Figure 1 shown, includes: a voltage stabilizing source circuit and a multi - gear regulation circuit;

[0021] The input end of the voltage stabilizing source circuit is connected to the power supply, and the output end is connected to the input end of the multi - gear regulation circuit. The output end of the multi - gear regulation circuit is connected to the motor;

[0022] The multi - gear regulation circuit is provided with at least two gears, and the switching of gears is realized by controlling a relay.

[0023] In one embodiment, as Figure 1 shown, the front end of the multi - gear regulation circuit adopts a constant - current source circuit, and the rear end adopts several gear circuits to realize the switching of gears; the gear circuit is composed of a relay and a resistor connected in series.

[0024] In one embodiment, as Figure 2 shown, the multi - gear regulation circuit includes: operational amplifier U1A, operational amplifier U1B, operational amplifier U2A, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, triode Q1, capacitor C5, polarized capacitor C1, polarized capacitor C2, polarized capacitor C3, polarized capacitor C4, relay RL1, relay RL2;

[0025] One end of the resistor R1 inputs a voltage. The non-inverting input terminal of the operational amplifier U1A is simultaneously connected to the other end of the resistor R1 and one end of the resistor R4. The inverting input terminal of the operational amplifier U1A is simultaneously connected to one end of the resistor R2 and one end of the resistor R3. The other end of the resistor R2 is grounded. The negative power supply terminal of the operational amplifier U1A inputs a -5V voltage and is connected to the positive electrode of the polarized capacitor C1. The negative electrode of the polarized capacitor C1 is grounded. The non-inverting input terminal of the operational amplifier U2A is simultaneously connected to the output terminal of the operational amplifier U1A and the other end of the resistor R3. The output terminal of the operational amplifier U2A is connected to the base of the triode Q1. The positive power supply terminal of the operational amplifier U2A inputs a +24V voltage and is connected to the positive electrode of the polarized capacitor C3. The negative electrode of the polarized capacitor C3 is grounded. The inverting input terminal of the operational amplifier U2A is simultaneously connected to the emitter of the triode Q1, one input end of the relay RL1, and one input end of the relay RL2. The negative power supply terminal of the operational amplifier U2A inputs a -5V voltage and is connected to the negative electrode of the polarized capacitor C1. The positive electrode of the polarized capacitor C1 is grounded. The collector of the triode Q1 inputs a -24V voltage. The output terminal and the inverting input terminal of the operational amplifier U1B are connected to the other end of the resistor R4. The power supply terminals of the relay RL1 and the relay RL2 input a voltage. One output end of the relay RL1 is connected to one end of the resistor R5. One end of the resistor R6 is connected to the other end of the resistor R5. One output end of the relay RL2 is connected to one end of the resistor R7. One end of the resistor R8 is connected to the other end of the resistor R7. The non-inverting input terminal of the operational amplifier U1B is simultaneously connected to one end of the capacitor C5, the other end of the resistor R6, and the other end of the resistor R8 and outputs a voltage to the motor. The other end of the capacitor C5 is grounded.

[0026] In one embodiment, as Figure 3 shown, the voltage stabilizing source circuit includes: a voltage stabilizing source device D1, a voltage regulator U4, an operational amplifier U3A, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a polarized capacitor C6, and a resistor RV1;

[0027] The 3rd pin of the voltage regulator device D1 and the 3rd pin of the voltage stabilizer U4 are connected to the input voltage. The 4th pin of the voltage regulator device D1 is grounded. The 1st pin of the voltage regulator device D1 is simultaneously connected to the 1st pin of the voltage stabilizer U4, one end of the resistor R9, and the non-inverting input terminal of the operational amplifier U3A. The 2nd pin of the voltage stabilizer U4 is simultaneously connected to one end of the resistor R10, the other end of the resistor R9, and the positive electrode of the polarized capacitor C6. The other end of the resistor R10 and the other end of the polarized capacitor C6 are connected and grounded. The 2nd pin of the voltage regulator device D1 is connected to one end of the resistor R11 and grounded. The 2nd pin of the operational amplifier U3A is connected to the control terminal of the resistor RV1. One end of the resistor RV1 is connected to the other end of the resistor R11. The other end of the resistor RV1 is connected to the other end of the resistor R12. The output terminal of the operational amplifier U3A is connected to one end of the resistor R12 and outputs the voltage to the multi-stage adjustment circuit.

[0028] Working principle: First, the power supply voltage is input into the voltage regulator circuit. The voltage regulator device D1 provides a voltage regulator that meets the working requirements for the entire voltage. The voltage stabilizer U4 converts the input power supply voltage into the working voltage according to the regulated voltage source and outputs it through the operational amplifier U3A. At this time, the resistor RV1 can adjust the resistance value according to different motor specifications to adjust the output voltage.

[0029] After the working voltage is input into the multi-stage adjustment circuit, a voltage follower circuit is formed by the operational amplifier U1A, and a non-inverting summing circuit is formed by the operational amplifier U2A. The non-inverting input terminal of the operational amplifier U1B is connected with a filter capacitor, reducing the interference brought by the external circuit. By outputting a constant current source to the relay RL1 and the relay RL2, different voltage output values in the motor are realized, thereby achieving different rotational speeds.

[0030] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An electric roller speed regulation system, characterized in that, The speed regulation system includes: a voltage stabilization source circuit and a multi-gear regulation circuit; The input end of the voltage stabilization source circuit is connected to the power supply, the output end is connected to the input end of the multi-gear regulation circuit, and the output end of the multi-gear regulation circuit is connected to the motor; The multi-gear regulation circuit has at least two gears, and the switching of gears is realized by controlling the relay.

2. The electric roller speed adjustment system according to claim 1, wherein, The front end of the multi-gear regulation circuit adopts a constant current source circuit, and the back end adopts several gear circuits to realize the switching of gears; the gear circuit is composed of a relay and a resistor connected in series.

3. The electric roller speed regulation system according to claim 1, characterized in that, The multi-gear regulation circuit includes: operational amplifier U1A, operational amplifier U1B, operational amplifier U2A, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, triode Q1, capacitor C5, polarized capacitor C1, polarized capacitor C2, polarized capacitor C3, polarized capacitor C4, relay RL1, relay RL2; One end of the resistor R1 inputs voltage. The non-inverting input end of the operational amplifier U1A is simultaneously connected to the other end of the resistor R1 and one end of the resistor R4. The inverting input end of the operational amplifier U1A is simultaneously connected to one end of the resistor R2 and one end of the resistor R3. The other end of the resistor R2 is grounded. The negative power supply end of the operational amplifier U1A inputs -5V voltage and is connected to the positive electrode of the polarized capacitor C1. The negative electrode of the polarized capacitor C1 is grounded. The non-inverting input end of the operational amplifier U2A is simultaneously connected to the output end of the operational amplifier U1A and the other end of the resistor R3. The output end of the operational amplifier U2A is connected to the base of the triode Q1. The positive power supply end of the operational amplifier U2A inputs +24V voltage and is connected to the positive electrode of the polarized capacitor C3. The negative electrode of the polarized capacitor C3 is grounded. The inverting input end of the operational amplifier U2A is simultaneously connected to the emitter of the triode Q1, one input end of the relay RL1, and one input end of the relay RL2. The negative power supply end of the operational amplifier U2A inputs -5V voltage and is connected to the negative electrode of the polarized capacitor C1. The positive electrode of the polarized capacitor C1 is grounded. The collector of the triode Q1 inputs -24V voltage. The output end and the inverting input end of the operational amplifier U1B are connected to the other end of the resistor R4. The power supply ends of the relay RL1 and the relay RL2 input voltage. One output end of the relay RL1 is connected to one end of the resistor R5. One end of the resistor R6 is connected to the other end of the resistor R5. One output end of the relay RL2 is connected to one end of the resistor R7. One end of the resistor R8 is connected to the other end of the resistor R7. The non-inverting input end of the operational amplifier U1B is simultaneously connected to one end of the capacitor C5, the other end of the resistor R6, and the other end of the resistor R8 and outputs voltage to the motor. The other end of the capacitor C5 is grounded.

4. The electric roller speed regulation system according to claim 1, wherein The voltage regulator circuit includes: a voltage regulator device D1, a voltage regulator U4, an operational amplifier U3A, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a polar capacitor C6, and a resistor RV1; The 3rd pin of the voltage regulator device D1 and the 3rd pin of the voltage regulator U4 are connected to the input voltage. The 4th pin of the voltage regulator device D1 is grounded. The 1st pin of the voltage regulator device D1 is simultaneously connected to the 1st pin of the voltage regulator U4, one end of the resistor R9, and the non-inverting input terminal of the operational amplifier U3A. The 2nd pin of the voltage regulator U4 is simultaneously connected to one end of the resistor R10, the other end of the resistor R9, and the positive electrode of the polar capacitor C6. The other end of the resistor R10 and the other end of the polar capacitor C6 are connected and grounded. The 2nd pin of the voltage regulator device D1 is connected to one end of the resistor R11 and grounded. The 2nd pin of the operational amplifier U3A is connected to the control terminal of the resistor RV1. One end of the resistor RV1 is connected to the other end of the resistor R11. The other end of the resistor RV1 is connected to the other end of the resistor R12. The output terminal of the operational amplifier U3A is connected to one end of the resistor R12 and outputs the voltage to the multi-stage adjustment circuit.

Images