Embedded torque and speed sensor

Abstract

This utility model discloses an embedded torque-speed sensor, comprising a base shell and a cover, the cover being fixedly connected to the base shell by a fixing bolt, and a speed measuring component disposed at the outer end of the base shell and the cover, the speed measuring component calculating speed data through the principle of magneto-electric induction; it also includes a torque measuring component disposed within the base shell, the torque measuring component calculating torque data through a Wheatstone bridge circuit, a rotating rod inserted into the base shell, and a rotor being clamped in the middle of the rotating rod. This utility model belongs to the field of sensor technology, specifically an embedded torque-speed sensor.

Description

Technical Field

[0001] This utility model belongs to the field of sensor technology, and particularly relates to an embedded torque and speed sensor. Background Technology

[0002] Sensors have evolved through three generations: structural, solid-state, and intelligent. Intelligent sensors possess multiple functions, including information acquisition and processing, laying the foundation for the intelligent, miniaturized, and integrated development of embedded torque and speed sensors. The development of intelligent vehicles, autonomous driving, and cockpit domains require precise measurement of the torque and speed of components such as engines and drive shafts to achieve powertrain optimization, vehicle stability control, and fault diagnosis. Electronic stability control systems, for example, rely on such sensors.

[0003] Current contact measurement technology is prone to generating frictional heat, and changes in the working environment can easily reduce the lifespan and reliability of the sensor, making it difficult to install, replace, and maintain, and it is also difficult to adapt to high-speed rotation and long-term use. Utility Model Content

[0004] In response to the above situation, in order to overcome the shortcomings of contact measurement technology, such as difficulty in maintenance and easy generation of frictional heat.

[0005] The technical solution adopted by this utility model is as follows: an embedded torque and speed sensor, including a base shell and a cover, the cover being fixedly connected to the base shell by a fixing bolt, and a speed measuring component disposed at the outer end of the base shell and the cover, the speed measuring component calculating speed data through the principle of magneto-electric induction; it also includes a torque measuring component disposed in the base shell, the torque measuring component calculating torque data through a Wheatstone bridge circuit, a rotating rod inserted in the base shell, and a rotor being clamped in the middle of the rotating rod.

[0006] Furthermore, the speed measuring component includes monitoring module one and monitoring module two. A through hole one is opened in the middle of the bottom end of the base shell, and a through hole two connected to through hole one is opened in the middle of the cover body. Monitoring module one is fixed to the outside of the base shell at one of the through holes, and the inner side of monitoring module one is in close contact with one end of the rotating rod. Monitoring module two is fixed to the outside of the cover body at through hole two, and the inner side of monitoring module two is in close contact with the other end of the rotating rod. Monitoring module one and monitoring module two are respectively electrically connected to voltage monitoring module one through wires. Voltage monitoring module one is fixed to the outer side of the base shell.

[0007] Furthermore, the torque measuring assembly includes an adjusting rod, a support shell, and fixed resistors. Several adjusting rods are threaded to the side of the base shell, and the support shell is fixed to one end of the adjusting rod. A slot is provided inside the support shell, and the fixed resistor is inserted into the slot. The fixed resistors are connected in series with each other by wires. A voltage monitoring module two is connected to both ends of the fixed resistors by wires, and the voltage monitoring module two is fixed to the outside of the base shell.

[0008] Furthermore, the bottom of the base shell is provided with several pressure-bearing grooves, and the upper end of the pressure-bearing grooves is smooth.

[0009] Furthermore, a microprocessor is provided on the outside of the base shell, and the microprocessor is connected to a display module via wires.

[0010] Furthermore, the voltage monitoring module one and voltage monitoring module two are electrically connected to the microprocessor via wires.

[0011] The beneficial effects of this utility model after adopting the above structure are as follows:

[0012] (1) By making electrical contact with both ends of the rotating rod through monitoring module one and monitoring module two in the speed measuring component, the rotor will generate an alternating induced electromotive force when the rotating rod rotates, using the principle of magneto-electric induction. The frequency of the induced electromotive force is proportional to the generated voltage and the rotation speed, thereby calculating the rotation speed. A full-bridge or half-bridge circuit is used to improve sensitivity and compensate for temperature error.

[0013] (2) A Wheatstone bridge circuit is formed by the adjusting rod, support shell, and fixed resistor in the torque measuring assembly, and the strain on the rotor caused by the torque is converted into an electrical signal. The strain gauge senses the shear stress of the shaft, and after passing through the Wheatstone bridge circuit, it outputs a voltage signal proportional to the torque, realizing the overall encapsulation of the sensor, giving it good protection performance and adapting to the working environment. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a half-sectional schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is an exploded view of the overall structure of this utility model;

[0018] Figure 4 This is a partial cross-sectional view of the structure of this utility model. Figure 1 ;

[0019] Figure 5 This is a partial cross-sectional view of the structure of this utility model. Figure 2 .

[0020] In the attached diagram: 1. Base shell, 2. Cover, 3. Rotating rod, 4. Rotor, 5. Monitoring module one, 6. Monitoring module two, 7. Voltage monitoring module one, 8. Pressure-bearing groove, 9. Adjusting rod, 10. Support shell, 11. Fixed resistor, 12. Voltage monitoring module two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] like Figure 1-3 As shown, the embedded torque and speed sensor includes a base shell 1 and a cover 2. The cover 2 is fixedly connected to the base shell 1 by a fixing bolt. A speed measuring component is disposed at the outer end of the base shell 1 and the cover 2. The speed measuring component calculates the speed data by means of magneto-electric induction. It also includes a torque measuring component disposed in the base shell 1. The torque measuring component calculates the torque data by means of a Wheatstone bridge circuit. A rotating rod 3 is inserted into the base shell 1, and a rotor 4 is clamped in the middle of the rotating rod 3.

[0024] like Figure 3-4 As shown, the speed measuring component includes monitoring module 1 (5) and monitoring module 2 (6). A through hole 1 is provided in the middle of the bottom end of the base shell 1, and a through hole 2 connected to the through hole 1 is provided in the middle of the cover 2. Monitoring module 1 (5) is fixed to the outside of the base shell 1 at one of the through holes, and the inner side of monitoring module 1 (5) is in close contact with one end of the rotating rod 3. Monitoring module 2 (6) is fixed to the outside of the cover 2 at the through hole 2, and the inner side of monitoring module 2 (6) is in close contact with the other end of the rotating rod 3. Monitoring module 1 (5) and monitoring module 2 (6) are respectively electrically connected to voltage monitoring module 1 (7) through wires. Voltage monitoring module 1 (7) is fixed to the outer side of the base shell 1.

[0025] The base shell 1 has several pressure-bearing grooves 8 at its bottom. The upper end of the pressure-bearing grooves 8 is smooth. The base shell 1 has a microprocessor on its outer side. The microprocessor is connected to a display module through wires. Using the principle of magneto-electric induction, when the rotating rod 3 rotates, the induction coil on the rotor 4 will generate an alternating induced electromotive force. Its frequency is proportional to the generated voltage and the rotation speed, thereby calculating the rotation speed. A full-bridge or half-bridge circuit is used to improve sensitivity and compensate for temperature errors.

[0026] like Figure 2-3 As shown in -4-5, the torque measuring assembly includes an adjusting rod 9, a support shell 10, and a fixed resistor 11. Several adjusting rods 9 are threaded to the side of the base shell 1. The support shell 10 is fixed to one end of the adjusting rod 9. A slot is opened inside the support shell 10. The fixed resistor 11 is locked inside the slot. The fixed resistors 11 are connected in series with wires. The two ends of the fixed resistor 11 are connected to a voltage monitoring module 2 12 with wires. The voltage monitoring module 2 12 is fixed to the outside of the base shell 1.

[0027] Voltage monitoring module 7 and voltage monitoring module 12 are electrically connected to the microprocessor via wires. A Wheatstone bridge circuit is formed by the adjusting rod 9, support shell 10, and fixed resistor 11 in the torque measuring assembly. The strain on the rotor 4 caused by the torque is converted into an electrical signal. The strain gauge senses the shear stress of the shaft, and after passing through the Wheatstone bridge circuit, outputs a voltage signal proportional to the torque. This achieves overall sensor encapsulation, giving it good protective performance and adaptability to the working environment.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An embedded torque and speed sensor, characterized in that: The device includes a base shell and a cover, the cover being fixedly connected to the base shell by a fixing bolt, and a speed measuring component disposed at the outer end of the base shell and the cover, the speed measuring component calculating rotational speed data using the principle of magneto-electric induction; it also includes a torque measuring component disposed inside the base shell, the torque measuring component calculating torque data using a Wheatstone bridge circuit, a rotating rod inserted inside the base shell, and a rotor being clamped in the middle of the rotating rod.

2. The embedded torque and speed sensor according to claim 1, characterized in that: The speed measuring component includes monitoring module one and monitoring module two. A through hole one is opened in the middle of the bottom end of the base shell, and a through hole two connected to through hole one is opened in the middle of the cover body. Monitoring module one is fixed to the outside of the base shell at one of the through holes, and the inner side of monitoring module one is in close contact with one end of the rotating rod. Monitoring module two is fixed to the outside of the cover body at through hole two, and the inner side of monitoring module two is in close contact with the other end of the rotating rod. Monitoring module one and monitoring module two are respectively electrically connected to voltage monitoring module one through wires. Voltage monitoring module one is fixed to the outer side of the base shell.

3. The embedded torque-speed sensor according to claim 2, characterized in that: The bottom of the base shell is provided with several pressure-bearing grooves, and the upper end of the pressure-bearing grooves is smooth.

4. The embedded torque-speed sensor according to claim 3, characterized in that: A microprocessor is located on the outside of the base shell, and the microprocessor is connected to a display module via wires.

5. The embedded torque-speed sensor according to claim 4, characterized in that: The torque measuring assembly includes an adjusting rod, a support shell, and fixed resistors. Several adjusting rods are threaded to the side of the base shell. The support shell is fixed to one end of the adjusting rod. A slot is opened inside the support shell. The fixed resistors are locked inside the slot. The fixed resistors are connected in series with wires. A voltage monitoring module two is connected to both ends of the fixed resistors with wires. The voltage monitoring module two is fixed to the outside of the base shell.

6. The embedded torque-speed sensor according to claim 5, characterized in that: The voltage monitoring module one and voltage monitoring module two are electrically connected to the microprocessor via wires.

Images