Motor screw for gear motor
By integrating a piezoelectric film and a measuring circuit board onto the motor screw, real-time detection of the screw's fixing status is achieved, solving the problem of not being able to detect screw loosening in time in existing technologies, and improving the reliability and safety of the equipment.
Patent Information
- Application Number
- CN202520637454.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-07
AI Technical Summary
The existing motor screws cannot detect the fixing status in real time, which means that when the screws become loose, it cannot be detected in time, which can easily lead to malfunctions.
A piezoelectric film is attached to the hexagonal nut of the motor screw, and a measuring circuit board is installed inside the mounting cavity of the nut. Combining the piezoelectric film and the measuring circuit board, the screw tightening force is detected in real time by a signal acquisition module and a processor module, and the data is uploaded to the monitoring terminal through a communication module.
It enables real-time detection of screw fixation status, preventing accidental screw loosening, reducing damage to the measurement circuit board caused by vibration, and improving the reliability and safety of the equipment.
Smart Images
Figure CN223794462U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to screw related technical field, concretely is a motor screw for speed reducer motor. BACKGROUND
[0002] Speed reducer motor is the power output device commonly used in production and life, has the advantages such as low energy consumption, high load capacity, reliable and durable, is widely used in the production and life of each field product in machinery, steel and other industries. With the continuous pursuit of high-quality life of people, the use range and scene of speed reducer motor are also expanding. In the process of speed reducer motor assembly, motor screw is needed to be fixed, and the existing motor screw only plays a fixed role, and the fixed state of the screw cannot be detected, so when the screw loosens, it cannot be known in time, and faults are prone to occur. UTILITY MODEL CONTENTS
[0003] To solve the defects that the existing motor screw only plays a fixed role, and the fixed state of the screw cannot be detected, so when the screw loosens, it cannot be known in time, and faults are prone to occur, the utility model provides a motor screw for speed reducer motor.
[0004] To solve the above technical problems, the utility model provides the following technical scheme:
[0005] The utility model discloses a motor screw for speed reducer motor, including the screw body that is composed of hexagon nut and screw rod, the extrusion surface of hexagon nut is attached with piezoelectric film, the upper of hexagon nut is equipped with the installation cavity extending to the inside of screw rod, and the port of installation cavity is arranged at the outer end of hexagon nut, the installation cavity is installed with the measuring circuit board being connected with piezoelectric film in the insulating frame, the bottom of the bottom side insulating frame of installation cavity is equipped with the compression spring, and the upper part of screw rod is equipped with the threading hole being connected with installation cavity, the top of installation cavity is equipped with the pressing block for pressing the upper part of insulating frame downward.
[0006] As a preferred technical scheme of the utility model, the upper port of installation cavity is equipped with the embedding groove for embedding the pressing block, and the inside of the groove is equipped with the internal thread structure, and the outside of the pressing block is equipped with the external thread structure matched with the internal thread structure, and the bottom of the pressing block is equipped with the pressing column extending into the cavity of installation cavity and being used for pressing the top of insulating frame.
[0007] As a preferred technical scheme of the utility model, the upper surface of the pressing block is equipped with the cross groove.
[0008] As a preferred technical scheme of the utility model, the insulating frame is equipped with the power supply module for supplying power to the measuring circuit board and piezoelectric film.
[0009] As a preferred technical scheme of the utility model, the measuring circuit board is provided with a signal acquisition module, a processor module and a communication module, the output end of the piezoelectric film is connected with the input end of the signal acquisition module, the output end of the signal acquisition module is connected with the signal input pin of the processor module, the communication module is connected with the processor module, the processor module is used for processing the piezoelectric data collected by the piezoelectric film, obtaining the screw fixing compression force value, and uploading to the monitoring end through the communication module.
[0010] The utility model has the advantages of:
[0011] The motor screw for the speed reducer is attached with the piezoelectric film on the extrusion surface of the hexagonal nut, is provided with the mounting cavity extending to the inside of the screw rod on the hexagonal nut, and the measuring circuit board connected with the piezoelectric film is mounted in the mounting cavity through the insulating frame. This can realize the real-time detection of the locking force of the screw rod, avoid the accidental loosening of the screw, and the bottom of the insulating frame of the bottom side of the mounting cavity is provided with the compression spring, so that the insulating frame plays a damping role, and the vibration generated during the operation of the speed reducer does not cause the measuring circuit board to vibrate violently, and the measuring circuit board is not easily damaged. DRAWINGS
[0012] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation of the utility model. In the drawings:
[0013] Figure 1 It is the structural schematic diagram of the motor screw for the speed reducer of the utility model,
[0014] Figure 2 It is the structural schematic diagram of the compression spring of the motor screw for the speed reducer of the utility model,
[0015] Figure 3 It is the structural schematic diagram of the measuring circuit board of the motor screw for the speed reducer of the utility model.
[0016] In the drawing: 1, screw body;2, hexagonal nut;3, screw rod;4, piezoelectric film;5, mounting cavity;6, insulating frame;7, measuring circuit board;8, compression spring;9, threading hole;10, pressing block;11, recess;12, pressing column;13, cross slot;14, signal acquisition module;15, processor module;16, communication module. Specific implementation
[0017] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model.
[0018] Embodiment: as Figure 1 , Figure 2 , Figure 3 The utility model discloses a motor screw for speed reduction motor, including the screw body 1 that is composed of hexagon nut 2 and screw rod 3, the piezoelectric film 4 is pasted on the extrusion surface of hexagon nut 2, the installation cavity 5 that extends to the inside of screw rod 3 is equipped on hexagon nut 2, and the port of installation cavity 5 is arranged at the outer end of hexagon nut 2, the measuring circuit board 7 that is connected with piezoelectric film 4 is installed in installation cavity 5 through insulating frame 6, the bottom between the bottom of insulating frame 6 of installation cavity 5 is equipped with compression spring 8, and the upper portion of screw rod 3 is equipped with threading hole 9 that communicates with installation cavity, the top of installation cavity 5 is equipped with the pressing block 10 for pressing the upper portion of insulating frame downward. The piezoelectric film 4 is pasted on the extrusion surface of hexagon nut 2, and the installation cavity 5 that extends to the inside of screw rod 3 is equipped on hexagon nut 2, and the measuring circuit board 7 that is connected with piezoelectric film 4 is installed in installation cavity 5 through insulating frame 6. This can realize the real-time detection of the locking force of screw rod 3, avoid the accidental loosening of the screw, wherein the bottom between the bottom of insulating frame 6 of installation cavity 5 is equipped with compression spring 8, which plays a shock-absorbing role on insulating frame 6, avoids the vibration generated during the operation of the speed reduction motor, and causes the measuring circuit board 7 to vibrate violently, which is easy to cause the damage of the measuring circuit board 7.
[0019] Among them, the embedding groove 11 for embedding the pressing block 10 is equipped at the upper port of installation cavity 5, and the inner thread structure is equipped in the inside of groove 11, and the outer thread structure that cooperates with the inner thread structure is equipped on the outside of pressing block 10, and the pressing column 12 that is used for pressing the top of insulating frame 6 is equipped at the bottom of pressing block 10 and extends into the cavity of installation cavity 5, which has the characteristics of convenient installation and dismounting of insulating frame.
[0020] Among them, the cross groove 13 is equipped on the upper surface of pressing block 10, which is convenient for dismounting
[0021] The insulating frame 6 is provided with a power supply module for supplying power to the measuring circuit board 7 and the piezoelectric film 4. The measuring circuit board 7 is provided with a signal acquisition module 14, a processor module 15 and a communication module 16, the output end of the piezoelectric film 4 is connected with the input end of the signal acquisition module 14, the output end of the signal acquisition module 14 is connected with the signal input pin of the processor module 15, the communication module 16 is connected with the processor module 15, the processor module 15 is used for processing the piezoelectric data collected by the piezoelectric film 4 to obtain the screw fixing compression force value, and the communication module 16 is used for uploading the screw fixing compression force value to the monitoring end, so that the locking force of the bolt can be detected in real time, and the bolt can be locked in time.
[0022] In work, the motor screw is provided with the piezoelectric film 4 attached on the extrusion surface of the hexagonal nut 2, and the installation cavity 5 extending into the screw rod 3 is arranged on the hexagonal nut 2, the measuring circuit board 7 connected with the piezoelectric film 4 is arranged in the installation cavity 5 through the insulating frame 6, so that the locking force of the screw rod 3 can be detected in real time, and the screw is prevented from loosening accidentally, the compression spring 8 is arranged between the bottom of the installation cavity 5 and the bottom of the insulating frame 6, so that the insulating frame 6 is prevented from vibrating, and the measuring circuit board 7 is prevented from vibrating violently and being damaged.
[0023] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A motor screw for a reduction motor, comprising a screw body (1) consisting of a hexagonal nut (2) and a screw rod (3), characterized in that: The extrusion surface of the hexagonal nut (2) is attached with a piezoelectric film (4), the hexagonal nut (2) is provided with a mounting cavity (5) extending into the interior of the screw rod (3), and the port of the mounting cavity (5) is arranged at the outer end of the hexagonal nut (2), the mounting cavity (5) is provided with a measuring circuit board (7) connected with the piezoelectric film (4) through an insulating frame (6), the bottom of the insulating frame (6) of the mounting cavity (5) is provided with a compression spring (8), and the upper part of the screw rod (3) is provided with a threading hole (9) in communication with the mounting cavity, and the top of the mounting cavity (5) is provided with a pressing block (10) for pressing the upper part of the insulating frame downward.
2. A motor screw for a reduction motor according to claim 1, wherein The upper port of the mounting cavity (5) is provided with an embedded groove (11) for embedding the pressing block (10), the inside of the groove (11) is provided with an internal thread structure, the outside of the pressing block (10) is provided with an external thread structure matched with the internal thread structure, and the bottom of the pressing block (10) is provided with a pressing column (12) extending into the cavity of the mounting cavity (5) and used for pressing the top of the insulating frame (6).
3. The motor screw for a reduction motor according to claim 1, wherein The upper surface of the pressing block (10) is provided with a cross groove (13).
4. The motor screw for a reduction motor according to claim 1, wherein The insulating frame (6) is provided with a power supply module for supplying power to the measuring circuit board (7) and the piezoelectric film (4).
5. The motor screw for a reduction motor according to claim 1, wherein The measuring circuit board (7) is provided with a signal acquisition module (14), a processor module (15) and a communication module (16), the output end of the piezoelectric film (4) is connected with the input end of the signal acquisition module (14), the output end of the signal acquisition module (14) is connected with the signal input pin of the processor module (15), the communication module (16) is connected with the processor module (15), the processor module (15) is used for processing the piezoelectric data collected by the piezoelectric film (4) to obtain the compression force value of the screw fixation, and uploading to the monitoring end through the communication module (16).