Gear shaft with torque monitoring device

Abstract

This application discloses a gear shaft with a torque monitoring device, relating to the field of mechanical transmission. It includes a gear shaft body, a transmission gear fixed to the gear shaft body, two symmetrical strain gauges fixed to the gear shaft body, a battery fixed to the gear shaft body, and a wireless transmission module fixed to the gear shaft body, with the battery and wireless transmission module symmetrically positioned. A protection mechanism and a limit mechanism are provided on the gear shaft body. By fixing the strain gauges, battery, and wireless transmission module to the gear shaft body, the strain gauges monitor the torque, and the protection mechanism protects the strain gauges, battery, and wireless transmission module. This allows the strain gauges to monitor the torque of the gear shaft in real time while simultaneously protecting the strain gauges, battery, and wireless transmission module, reducing the possibility of them falling off or flying away during high-speed rotation.

Description

Technical Field

[0001] This application relates to the field of mechanical transmission, and in particular to a gear shaft with a torque monitoring device. Background Technology

[0002] In modern mechanical transmission systems, gear shafts are one of the key components for power transmission. Their main function is to transmit the power generated by the power source to other mechanical components through gear meshing, thereby realizing the coordinated movement between different mechanical components. In order to ensure the stable operation and efficient power transmission of the mechanical transmission system, it is essential to accurately monitor the torque of the gear shaft.

[0003] Traditional methods for monitoring gear shaft torque primarily rely on torque sensors, which are typically installed at both ends or in the middle of the gear shaft. One method involves using strain gauges to measure the torque of the gear shaft. During measurement, the strain gauges are fixed to the gear shaft, and then symmetrical batteries and wireless transmission modules are fixed to the gear shaft. When the gear shaft rotates, the current signal generated by the strain gauges is transmitted to the wireless transmission module, which then transmits the information to an external device and converts it into a torque value.

[0004] However, this method of using strain gauge sensors to monitor gear shaft torque is susceptible to centrifugal force in high-speed rotating environments, which can cause the connection between the strain gauge sensor, battery, and other components and the gear shaft to loosen or even fall off. This not only affects the accuracy of torque monitoring but may also pose a potential safety hazard to the entire mechanical transmission system. Utility Model Content

[0005] The purpose of this application is to address the problem mentioned in the background art that the gear shaft is easily affected by centrifugal force in a high-speed rotating environment, which can lead to loosening or even detachment of components such as strain gauge sensors and batteries from the gear shaft. This not only affects the accuracy of torque monitoring but may also pose a potential safety hazard to the entire mechanical transmission system. This application provides a gear shaft with a torque monitoring device.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution: A gear shaft with a torque monitoring device includes a gear shaft body, a transmission gear fixed on the gear shaft body, two symmetrical strain gauges fixed on the gear shaft body, a battery fixed on the gear shaft body, and a wireless transmission module fixed on the gear shaft body. The battery and the wireless transmission module are symmetrical. Several corresponding transmission lines are fixed between the battery and the strain gauges, and between the wireless transmission module and the strain gauges. A protection mechanism and a limit mechanism are provided on the gear shaft body.

[0007] By adopting the above technical solution, the strain gauge, battery, and wireless transmission module are fixed on the gear shaft body. The strain gauge is used to monitor the torque, and then a protection mechanism is used to protect the strain gauge, battery, and wireless transmission module. This allows the strain gauge to monitor the torque of the gear shaft in real time while protecting the strain gauge, battery, and wireless transmission module, reducing the possibility of them falling off or flying away during high-speed rotation.

[0008] Furthermore, the protection mechanism includes a protective plate fixed on the gear shaft body, a protective shell sleeved on the gear shaft, the protective plate corresponding to the protective shell, two symmetrical support pads fixed inside the protective shell, the two support pads corresponding to the wireless transmission module and the battery, and a connecting component provided between the protective shell and the protective plate.

[0009] By adopting the above technical solution, the protective shell is fitted onto the gear shaft body, allowing the protective shell to abut against the protective plate. The support pads fixed inside the protective shell provide abutment support for the battery and wireless transmission module, thereby reducing the possibility of the strain gauge being damaged by impacts and also reducing the possibility of the battery, wireless transmission module and gear shaft body separating due to high-speed rotation.

[0010] Furthermore, the connecting assembly includes a connecting rod disposed on the protective shell, and a snap-fit ​​plate is rotatably connected to one end of the connecting rod near the protective plate.

[0011] By adopting the above technical solution, the snap-fit ​​plate rotatably connected to the connecting rod on the protective shell is fastened to the protective plate, thereby making it easy to fix the protective shell and the protective plate together.

[0012] Furthermore, a connecting threaded rod is fixed to the end of the connecting rod away from the snap-fit ​​plate, a support block is threaded onto the connecting threaded rod, the support block is fixedly connected to the protective shell, and a knob is fixed to the end of the connecting threaded rod away from the connecting rod.

[0013] By adopting the above technical solution, the connecting threaded rod moves on the support block, and the connecting threaded rod drives the connecting rod, which makes it easy for the connecting rod to drive the snap-fit ​​plate to contact the protective plate.

[0014] Furthermore, a limiting groove is provided on the protective plate, and the snap-fit ​​plate corresponds to the limiting groove.

[0015] By adopting the above technical solution, the snap-fit ​​plate is snapped into the limiting groove on the protective plate, thereby reducing the possibility of rotation between the protective shell and the protective plate.

[0016] Furthermore, the limiting mechanism includes four limiting blocks arranged symmetrically in pairs within the protective shell, with limiting heads fixed on the limiting blocks. The limiting heads are rubber heads, and a moving component is provided between the protective shell and the limiting blocks.

[0017] By adopting the above technical solution, the limiting head on the limiting block abuts against the gear shaft body, and the limiting head abuts and fixes the transmission line, thereby further fixing the transmission line and reducing the possibility of the transmission line falling off due to high-speed rotation.

[0018] Furthermore, the movable component includes a movable threaded rod rotatably connected to the limiting block, the movable threaded rod passing through the protective shell and being threadedly connected to the protective shell, and a knob two is fixed on the movable threaded rod.

[0019] By adopting the above technical solution, the movable threaded rod can move on the protective shell, thereby enabling the movable threaded rod to drive the limiting block, and the limiting block to drive the limiting head to move.

[0020] Furthermore, limit rods are provided on both sides of the movable threaded rod. One end of the limit rod is fixedly connected to the protective shell, and the other end of the limit rod is slidably connected to the limit block.

[0021] By adopting the above technical solution, the limiting block moves on the limiting rod, thereby enabling the limiting block to drive the limiting head to move stably.

[0022] In summary, this application includes at least one of the following beneficial effects; 1. This application achieves the following: the protective plate is directly fixed to the gear shaft body. After the strain gauge is attached to the gear shaft body, and the battery and wireless transmission module are fixed to the gear shaft body, the protective shell is fitted onto the gear shaft body, so that the protective shell abuts against the protective plate. The support pad fixed inside the protective shell provides abutment support for the battery and wireless transmission module. The snap-fit ​​plate on the connecting rod passes over the protective plate, and the snap-fit ​​plate aligns with the limiting groove on the protective plate. Rotating knob one causes the connecting threaded rod to rotate, and the connecting threaded rod moves on the support block. The connecting threaded rod drives the connecting rod, and the connecting rod causes the snap-fit ​​plate to snap into the limiting groove on the protective plate, so that the protective shell and the protective plate are together. The protective plate and the protective shell provide protection and stable support for the strain gauge, battery, and wireless transmission module. This achieves the goal of enabling the strain gauge to monitor the torque of the gear shaft body in real time while reducing the possibility of the strain gauge being damaged by impacts, and also reducing the possibility of the battery and wireless transmission module separating from the gear shaft body due to high-speed rotation.

[0023] 2. In this application, after fixing the protective shell and the protective plate together, the second knob is rotated to drive the moving threaded rod. The moving threaded rod moves on the protective shell and pushes the limiting block. The limiting block moves under the support of the two limiting rods, allowing the limiting block to drive the rubber limiting head, which then abuts against the transmission line on the gear shaft body, thus providing auxiliary fixation for the transmission line. This achieves the purpose of further fixing the transmission line and reducing the possibility of the transmission line falling off due to high-speed rotation. Attached Figure Description

[0024] Figure 1 This is a first three-dimensional structural schematic diagram of the gear shaft with torque monitoring device in this application; Figure 2 This is a second three-dimensional structural schematic diagram of the gear shaft with torque monitoring device in this application; Figure 3 This is a third-dimensional structural schematic diagram of the gear shaft with torque monitoring device in this application; Figure 4 This application Figure 3 Enlarged view of point A in the middle; Figure 5 This application Figure 2 Enlarged diagram of point B in the middle.

[0025] Explanation of reference numerals in the attached figures: 1. Gear shaft body; 2. Transmission gear; 3. Strain gauge; 4. Battery; 5. Wireless transmission module; 6. Protection mechanism; 61. Protective shell; 62. Protective plate; 63. Support pad; 64. Connecting assembly; 641. Connecting rod; 642. Snap-fit ​​plate; 643. Connecting threaded rod; 644. Support block; 645. Knob one; 7. Limiting mechanism; 71. Limiting block; 72. Limiting head; 73. Moving assembly; 731. Moving threaded rod; 732. Knob two; 733. Limiting rod; 8. Transmission line. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] This application discloses a gear shaft with a torque monitoring device.

[0028] Reference Figure 1 , Figure 2 and Figure 3A gear shaft with a torque monitoring device includes a gear shaft body 1, a transmission gear 2 fixed on the gear shaft body 1, two symmetrical strain gauges 3 fixed on the gear shaft body 1, a battery 4 fixed on the gear shaft body 1, a wireless transmission module fixed on the gear shaft body 1, the battery 4 and the wireless transmission module being symmetrical, and several corresponding transmission lines 8 fixed between the battery 4 and the strain gauges 3, and between the wireless transmission module 5 and the strain gauges 3, a protection mechanism 6 and a limit mechanism 7 are provided on the gear shaft body 1.

[0029] When using this gear shaft, firstly, the strain gauges 3 are glued to the gear shaft body 1, symmetrically distributed. Then, the battery 4 is fixed to the gear shaft body 1, and the strain gauges 3 are connected to the battery 4 via transmission lines, allowing the battery 4 to power the strain gauges 3. Next, the wireless transmission module 5 is fixed to the gear shaft body 1, and connected to the strain gauges 3 via transmission lines 8. Then, a protection mechanism 6 is installed on the gear shaft body 1 to protect the strain gauges 3, battery 4, and wireless transmission module 5. A limiting mechanism 7 is used to limit and protect several transmission lines 8. Finally, the gear shaft body 1 is installed in the desired position, and the transmission gear is used for drive. The gear shaft body 1 is driven to rotate. When the gear shaft body 1 generates torque, the slight deformation of the gear shaft body 1 drives the strain gauge 3, causing the strain gauge 3 to generate a current signal. The wireless transmission module 5 converts the current signal and transmits it. The external receiver collects the received signal and calculates the corresponding torque value. By fixing the strain gauge 3, battery 4, and wireless transmission module 5 to the gear shaft body 1, and then using the protection mechanism 6 to protect the strain gauge 3, battery 4, and wireless transmission module 5, the strain gauge 3 can monitor the torque of the gear shaft in real time, while the strain gauge 3, battery 4, and wireless transmission module 5 can be protected, reducing the possibility of them falling off or flying away during high-speed rotation.

[0030] Reference Figure 1 , Figure 3 and Figure 4 The protection mechanism 6 includes a protection plate 62 fixed on the gear shaft body 1, a protective shell 61 sleeved on the gear shaft, the protection plate 62 corresponding to the protective shell 61, two symmetrical support pads 63 fixed inside the protective shell 61, the two support pads 63 corresponding to the wireless transmission module 5 and the battery 4, and a connecting component 64 provided between the protective shell 61 and the protection plate 62.

[0031] In addition, the connecting assembly 64 includes a connecting rod 641 disposed on the protective shell 61, and a snap-fit ​​plate 642 is rotatably connected to one end of the connecting rod 641 near the protective plate 62.

[0032] Furthermore, a connecting threaded rod 643 is fixed to the end of the connecting rod 641 away from the snap-fit ​​plate 642, and a support block 644 is threaded onto the connecting threaded rod 643. The support block 644 is fixedly connected to the protective shell 61, and a knob 645 is fixed to the end of the connecting threaded rod 643 away from the connecting rod 641.

[0033] Furthermore, a limiting groove is provided on the protection plate 62, and the snap-fit ​​plate 642 corresponds to the limiting groove.

[0034] The protective plate 62 is directly fixed to the gear shaft body 1. After the strain gauge 3 is attached to the gear shaft body 1, and then the battery 4 and wireless transmission module 5 are fixed to the gear shaft body 1, the protective shell 61 is fitted onto the gear shaft body 1, so that the protective shell 61 abuts against the protective plate 62. The support pad 63 fixed inside the protective shell 61 provides abutment support for the battery 4 and wireless transmission module 5. The snap-fit ​​plate 642 on the connecting rod 641 passes over the protective plate 62, so that the snap-fit ​​plate 642 aligns with the limiting groove on the protective plate 62. The knob 645 is rotated, causing the connecting threaded rod 643 to rotate. The connecting threaded rod 643 moves on the support block 644, and the connecting threaded rod... The threaded rod 643 drives the connecting rod 641, which in turn drives the snap-fit ​​plate 642 to engage with the limiting groove on the protective plate 62, allowing the protective shell 61 and the protective plate 62 to come together. This provides protection and stable support for the strain gauge 3, battery 4, and wireless transmission module 5. By fixing the strain gauge 3, battery 4, and wireless transmission module 5 to the gear shaft body 1, and using the protective plate 62 and protective shell 61 to protect the strain gauge 3 and support and protect the battery 4 and wireless transmission module 5, the possibility of the strain gauge 3 being damaged by impacts can be reduced. At the same time, the possibility of the battery 4 and wireless transmission module 5 separating from the gear shaft body 1 due to high-speed rotation can also be reduced.

[0035] Reference Figure 1 , Figure 2 and Figure 5 The limiting mechanism 7 includes four limiting blocks 71 arranged symmetrically in pairs inside the protective shell 61. Limiting heads 72 are fixed on the limiting blocks 71. The limiting heads 72 are rubber heads. A moving component 73 is provided between the protective shell 61 and the limiting blocks 71.

[0036] In addition, the movable component 73 includes a movable threaded rod 731 rotatably connected to the limiting block 71. The movable threaded rod 731 passes through the protective shell 61 and is threadedly connected to the protective shell 61. A knob 732 is fixed on the movable threaded rod 731.

[0037] Furthermore, limit rods 733 are provided on both sides of the movable threaded rod 731. One end of the limit rod 733 is fixedly connected to the protective shell 61, and the other end of the limit rod 733 is slidably connected to the limit block 71.

[0038] After fixing the protective shell 61 and the protective plate 62 together, rotate the knob 732 to drive the movable threaded rod 731. The movable threaded rod 731 moves on the protective shell 61 and pushes the limiting block 71. The limiting block 71 moves under the support of the two limiting rods 733, allowing the limiting block 71 to drive the rubber limiting head 72. The limiting head 72 then abuts against the transmission line 8 on the gear shaft body 1, thus providing auxiliary fixation for the transmission line 8. By using the movable threaded rod 731 to move on the protective shell 61, the movable threaded rod 731 drives the limiting block 71, and the limiting block 71 drives the limiting head 72 to abut against the transmission line 8, thereby further fixing the transmission line 8 and reducing the possibility of the transmission line 8 falling off due to high-speed rotation.

[0039] Working principle: When using this gear shaft, firstly, the strain gauges 3 are glued to the gear shaft body 1, symmetrically distributed. Then, the battery 4 is fixed to the gear shaft body 1, and the strain gauges 3 are connected to the battery 4 via a transmission line, allowing the battery 4 to power the strain gauges 3. A wireless transmission module 5 is fixed to the gear shaft body 1, and the wireless transmission module 5 is connected to the strain gauges 3 via a transmission line 8. Finally, the protective shell 61 is fitted onto the gear shaft body 1, with the protective shell 61 contacting the protective plate 62. The internally fixed support pad 63 provides contact support for the battery 4 and the wireless transmission module 5, allowing the snap-fit ​​plate 642 on the connecting rod 641 to pass over the protective plate 62, aligning the snap-fit ​​plate 642 with the limiting groove on the protective plate 62. Rotating the knob 645 causes the connecting threaded rod 643 to rotate, moving it on the support block 644. The connecting threaded rod 643 then drives the connecting rod 641, which in turn causes the snap-fit ​​plate 642 to engage with the limiting groove on the protective plate 62, thus securing the protective shell. The protective shell 61 and the protective plate 62 are combined to protect and stably support the strain gauge 3, battery 4, and wireless transmission module 5. After fixing the protective shell 61 and the protective plate 62 together, the knob 732 is rotated to drive the moving threaded rod 731. The moving threaded rod 731 moves on the protective shell 61 and pushes the limiting block 71. The limiting block 71 moves under the support of the two limiting rods 733, allowing the limiting block 71 to drive the rubber limiting head 72. The limiting head 72 abuts against the transmission line 8 on the gear shaft body 1 to assist in fixing the transmission line 8. Then, the gear shaft body 1 is installed in the required position. The transmission gear drives the gear shaft body 1. When the gear shaft body 1 rotates and generates torque, the slight deformation of the gear shaft body 1 drives the strain gauge 3, causing the strain gauge 3 to generate a current signal. The wireless transmission module 5 converts the current signal and transmits it. The external receiver collects the received signal and calculates the corresponding torque value.

Claims

1. A gear shaft with a torque monitoring device, comprising a gear shaft body (1), characterized in that: A transmission gear (2) is fixed on the gear shaft body (1). Two symmetrical strain gauges (3) are fixed on the gear shaft body (1). A battery (4) is fixed on the gear shaft body (1). A wireless transmission module is fixed on the gear shaft body (1). The battery (4) and the wireless transmission module are symmetrical. Several corresponding transmission lines (8) are fixed between the battery (4) and the strain gauges (3) and between the wireless transmission module (5) and the strain gauges (3). A protection mechanism (6) is provided on the gear shaft body (1). A limit mechanism (7) is provided on the gear shaft body (1).

2. A gear shaft with a torque monitoring device according to claim 1, characterized in that: The protection mechanism (6) includes a protection plate (62) fixed on the gear shaft body (1), a protective shell (61) sleeved on the gear shaft, the protection plate (62) corresponding to the protective shell (61), two symmetrical support pads (63) fixed inside the protective shell (61), the two support pads (63) corresponding to the wireless transmission module (5) and the battery (4), and a connecting component (64) provided between the protective shell (61) and the protection plate (62).

3. A gear shaft with a torque monitoring device according to claim 2, characterized in that: The connecting assembly (64) includes a connecting rod (641) disposed on the protective shell (61), and a snap-fit ​​plate (642) is rotatably connected to one end of the connecting rod (641) near the protective plate (62).

4. A gear shaft with a torque monitoring device according to claim 3, characterized in that: The end of the connecting rod (641) away from the snap plate (642) is fixed with a connecting threaded rod (643), and a support block (644) is threaded onto the connecting threaded rod (643). The support block (644) is fixedly connected to the protective shell (61), and a knob (645) is fixed to the end of the connecting threaded rod (643) away from the connecting rod (641).

5. A gear shaft with a torque monitoring device according to claim 4, characterized in that: The protective plate (62) has a limiting groove, and the snap-fit ​​plate (642) corresponds to the limiting groove.

6. A gear shaft with a torque monitoring device according to claim 2, characterized in that: The limiting mechanism (7) includes four limiting blocks (71) arranged symmetrically in pairs inside the protective shell (61). A limiting head (72) is fixed on the limiting block (71). The limiting head (72) is a rubber head. A moving component (73) is provided between the protective shell (61) and the limiting block (71).

7. A gear shaft with a torque monitoring device according to claim 6, characterized in that: The moving component (73) includes a movable threaded rod (731) rotatably connected to the limiting block (71), the movable threaded rod (731) penetrates the protective shell (61) and is threadedly connected to the protective shell (61), and a knob two (732) is fixed on the movable threaded rod (731).

8. A gear shaft with a torque monitoring device according to claim 7, characterized in that: Limiting rods (733) are provided on both sides of the movable threaded rod (731). One end of the limiting rod (733) is fixedly connected to the protective shell (61), and the other end of the limiting rod (733) is slidably connected to the limiting block (71).

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