Striking execution module of intelligent playing equipment

Abstract

The utility model relates to a striking execution module of intelligent playing equipment. The module comprises a support, a pulley mechanism, a driving hammer and an electromagnet, the pulley mechanism comprises a pulley, a shaft, a transmission belt, a limiting rod and a reset spring, the driving hammer is installed on the pulley, the shaft penetrates through a pulley bearing hole and is fixed to the support, one end of the transmission belt is fixed to the outer circle of the pulley, and the other end of the transmission belt is fixed to an electromagnet armature and fixes the electromagnet to the proper position of the support. The limiting rod is installed at the proper position of the support to limit the initial position of the hammer, one end of the reset spring is fixed to the pulley, the other end of the reset spring is fixed to the support, and the support is installed on a support of the intelligent playing equipment. The device moves smoothly, the position of the driving hammer is accurately controlled, the attraction force of the electromagnet can be efficiently converted into the hitting force of the driving hammer, the response speed of the driving hammer is improved, and the stability and the reliability of the intelligent playing equipment are ensured.

Description

Technical Field

[0001] This utility model relates to a percussion execution module for an intelligent performance device, belonging to the field of intelligent performance device control. Background Technology

[0002] Intelligent performance equipment uses programs to control hammers to strike instruments or pluck strings to vibrate and produce music. Currently disclosed solutions use servo motors, stepper motors, servo motors, or electromagnets to drive the hammers. Electromagnets utilize a lever principle, using the electromagnet's attraction to move the lever around a fulcrum to strike the instrument. For example, CN103310777A discloses a centralized control performance platform suitable for large percussion instruments such as chimes and gongs. The electromagnetic hammer part includes a hammer, a swing rod, a bracket, a bushing, a swing shaft, a pull rod pin, a U-shaped pull rod seat, an iron core pull rod, an electromagnetic coil, and a return spring. The hammer is located at the upper end of the swing rod, and the swing shaft is located in the lower middle part of the swing rod. The swing rod passes through the swing arm and the bushings on both sides. The swing arm is hinged to the bracket via a swing shaft and bushings fixed to the bracket. Both the bushings and the electromagnetic coil are fixed to the bracket. The lowest end of the swing arm is hinged to a U-shaped pull rod seat via a pull pin and connected to the bracket via a return spring. The U-shaped pull rod seat is connected to an iron core pull rod, which passes through the electromagnetic coil and can reciprocate within it. The terminals of the electromagnetic coil are connected to the key section via a relay controller and wires. The electromagnet pushes and pulls one end of the lever, causing the hammer on the other end to move around the fulcrum and strike the instrument. The disadvantages of this scheme are: 1. The lever principle transmission means the direction of the electromagnet's pushing and pulling force remains constant, causing the lever arm to change during rotation, thus failing to effectively utilize the electromagnet's attraction; 2. To ensure smooth movement, a gap exists between the lever and the electromagnet armature, leading to inaccurate hammer position control; 3. The sliding connection results in high friction, failing to fully utilize the electromagnet's characteristics, causing the hammer's response speed to be much lower than the electromagnet's response speed, and resulting in uneven striking force, affecting the instrument's tone. Summary of the Invention

[0003] This invention addresses the shortcomings of existing intelligent performance devices by proposing a percussion execution module for intelligent performance devices. The module features a simple structure, low motion resistance, seamless operation, fast response, and reliable operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A percussion execution module for an intelligent performance device includes a support, a pulley mechanism, a hammer, and an electromagnet. The pulley mechanism includes a pulley, a shaft, a drive belt, a limit rod, and a return spring. The shaft passes through a pulley bearing hole and is fixed in a suitable position on the support. One end of the drive belt is fixed to the outer circumference of the pulley, and the other end is fixed to the armature of the electromagnet. The electromagnet is fixed in a suitable position on the support. The limit rod is installed in a suitable position on the support to limit the initial position of the hammer. One end of the return spring is fixed to the pulley, and the other end is fixed to the support and preloaded. It works with the limit rod to adjust the initial position of the hammer to be suitable for striking the instrument. The hammer is mounted on the side or outer surface of the pulley and rotates with the pulley.

[0006] The support is of type I, type L or type U.

[0007] The reset spring is a tension spring, a compression spring, or a torsion spring.

[0008] The return spring can be released when the hammer is initially in the position near 6 o'clock.

[0009] The support is mounted on the bracket of the intelligent performance device.

[0010] When this utility model is in use, after all components are installed, when the electromagnet is energized, the armature attracts and drives the transmission belt to move. The transmission belt drives the pulley to rotate, thereby driving the hammer connected to the pulley to rotate and strike the musical instrument. When the electromagnet is de-energized, the hammer resets under the pull of the reset spring or the action of gravity. The limit rod can block the inertial motion of the hammer, so that the hammer stops at the initial position.

[0011] Compared with the prior art, this utility model has the following advantages: First, it uses a pulley instead of a lever, the lever arm is constant, the direction of the force is adjustable, the installation position of the electromagnet is easily adjusted, and the module runs smoothly; Second, the connection between each component is almost seamless, which can precisely control the movement position of the hammer; Third, due to the extremely low movement resistance and the very small gap between the components, the response speed between the electromagnet and the hammer is improved, while the error of the striking force when the hammer strikes continuously is reduced, ensuring a pure and stable tone. Attached Figure Description

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

[0013] Figure 2 This is a schematic diagram of the structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1-support, 2-pulley mechanism, 21-pulley, 22-shaft, 23-transmission belt, 24-limit rod, 25-reset spring, 3-hammer, 4-electromagnet. Detailed Implementation

[0016] The specific embodiments of this utility model are described in further detail below. Technologies or products not specified in the embodiments are all existing technologies or conventional products that can be obtained through purchase.

[0017] Example 1: As Figure 1 As shown, a percussion execution module of an intelligent performance device includes a support 1, a pulley mechanism 2, a hammer 3, and an electromagnet 4. The pulley mechanism 2 includes a pulley 21, a shaft 22, a transmission belt 23, a limit rod 24, and a return spring 25.

[0018] Support 1 is L-shaped and made of sheet metal. The holes for mounting shaft 22, limit rod 24, return spring 25, electromagnet 4, and connecting to the bracket are laser-cut.

[0019] The hammer 3 is mounted on the side of the pulley 21 and rotates with the pulley 21. The hammer is mounted by welding to the side of the pulley 21.

[0020] Shaft 22 passes through the bearing hole of pulley 21 and is fixed to support 1 with bolts. One end of transmission belt 23 is fixed to the outer circle of pulley 21 and the other end is fixed to the armature of electromagnet 4. Electromagnet 4 is fixed to support 1 with bolts. Limiting rod 24 is installed on support 1 to limit the range of motion of hammer 3. Return spring 25 is a tension spring, one end is fixed to pulley 21 and the other end is fixed to support 1 with bolts and preloaded. It works with limiting rod 24 to adjust the initial position of hammer 3 to the 10 o'clock position. It can strike the instrument from top to bottom under the action of electromagnet 4. After completion, it returns to the initial position under the pull of return spring 25 and stops at the initial position under the action of limiting rod 24.

[0021] Support 1 is mounted on the bracket of the intelligent performance device.

[0022] Example 2: Figure 2 As shown, a percussion execution module of an intelligent performance device includes a support 1, a pulley mechanism 2, a hammer 3, and an electromagnet 4. The pulley mechanism 2 includes a pulley 21, a shaft 22, a transmission belt 23, and a limit rod 24.

[0023] Support 1 is L-shaped and made of aluminum alloy using CNC machining.

[0024] The hammer 3 is mounted on the side of the pulley 21 and rotates with the pulley 21. The hammer is mounted by welding to the side of the pulley 21.

[0025] Shaft 22 passes through the bearing hole of pulley 21 and is fixed to support 1 with bolts. One end of transmission belt 23 is fixed to the outer circle of pulley 21 and the other end is fixed to the armature of electromagnet 4. Electromagnet 4 is fixed to support 1 with bolts. Limiting rod 24 is installed on support 1 to limit the range of motion of hammer 3. Since the initial position of hammer 1 is at the 6 o'clock position, the return spring 25 is eliminated. Hammer 3 can strike the instrument from bottom to top under the drive of electromagnet 4 and return to its original position under the action of gravity after completion.

[0026] Support 1 is mounted on the bracket of the intelligent performance device.

[0027] Example 3: As Figure 3 As shown, the support 1 is U-shaped and made of sheet metal. The hammer 3 is mounted on the outer surface of the pulley 21 and rotates with the pulley 21. The installation method is a threaded connection. The rest is the same as in Embodiment 2.

[0028] The technical solution of this utility model has been described above, but the protection scope of this utility model is not limited to the described content. Within the scope of knowledge possessed by those skilled in the art, various changes can be made to the technical content of this utility model without departing from the spirit of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A percussion execution module for an intelligent performance device, characterized in that: The module includes a support, a pulley mechanism, a hammer, and an electromagnet. The pulley mechanism includes a pulley, a shaft, a drive belt, a limiting rod, and a return spring. The shaft passes through the pulley bearing hole and is fixed in a suitable position on the support. One end of the drive belt is fixed to the outer circle of the pulley, and the other end is fixed to the armature of the electromagnet. The electromagnet is fixed in a suitable position on the support. The limiting rod is installed in a suitable position on the support to limit the initial position of the hammer. One end of the return spring is fixed to the pulley, and the other end is fixed to the support and preloaded. It works with the limiting rod to adjust the initial position of the hammer to be suitable for striking the instrument. The hammer is mounted on the side or outer surface of the pulley and rotates with the pulley.

2. The percussion execution module of the intelligent performance device according to claim 1, characterized in that: The support is of type I, type L or type U. 3.The striking performance module of the intelligent playing device according to claim 1, characterized in that: The reset spring is a tension spring, a compression spring, or a torsion spring.

4. The percussion execution module of the intelligent performance device according to claim 1, characterized in that: The return spring can be released when the hammer is initially in the position near the 6 o'clock position.

5. The percussion execution module of the intelligent performance device according to claim 1, characterized in that: The support is mounted on the bracket of the intelligent performance device.

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