Anti-electromagnetic interference torque sensor

Abstract

The utility model belongs to the technical field of anti-interference sensors, and discloses an anti-electromagnetic interference torque sensor, which comprises a mounting plate, the upper surface of the mounting plate is fixedly connected with a base, the upper surface of the base is fixedly connected with a first mounting shell, and a second mounting shell is arranged above the first mounting shell. The first mounting shell and the second mounting shell are both made of metal materials. According to the utility model, the heat dissipation assembly, the first mounting shell and the second mounting shell are all made of metal materials with good conductivity, and the metal shell of the sensor is added to form a double-layer shielding shell, so that the anti-interference performance to electromagnetism is improved, and through the mounting mode, the sensor is convenient to replace, and when the sensor is used, the cost is reduced. The servo motor in the base drives the fan to rotate, the heat dissipation speed of the internal sensor is increased, and the temperature of the sensor is prevented from being high.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-interference sensors, and particularly relates to a torque sensor for anti-electromagnetic interference. Background Technique

[0002] Torque sensors, also known as moment sensors, torsion sensors, torque sensors, torque meters, are divided into two categories: dynamic and static. Among them, dynamic torque sensors can also be called torque sensors, torque speed sensors, non-contact torque sensors, rotary torque sensors, etc. Torque sensors are used to detect the torsion moment perception on various rotating or non-rotating mechanical components. Torque sensors convert the physical change of torsion force into accurate electrical signals.

[0003] The outer shell of the existing torque sensor is usually made of metal material. Because the metal material with good conductivity has the performance of anti-electromagnetic interference and plays the role of electromagnetic shielding. However, after long-term use, the sensor chip generates heat seriously, and the chip is wrapped inside the outer shell, with low heat dissipation efficiency, which easily leads to too high temperature and affects the accuracy of the sensor. Content of the Utility Model

[0004] In order to solve the above problems, the purpose of the utility model is to provide a torque sensor for anti-electromagnetic interference.

[0005] To achieve the above purpose, the utility model provides a torque sensor for anti-electromagnetic interference, including a mounting plate. The upper surface of the mounting plate is fixedly connected with a base. The upper surface of the base is fixedly connected with a first mounting shell. A second mounting shell is arranged above the first mounting shell. Both the first mounting shell and the second mounting shell are made of metal material with good conductivity. An installation groove is arranged inside the base, and a heat dissipation component is arranged inside the installation groove. The first mounting shell is communicated with the base.

[0006] In one example, the heat dissipation component includes a vertical plate. The vertical plate is fixed on the side wall of the installation groove. Fixing frames are fixedly connected to both sides of the vertical plate. A hollow plate is fixedly connected to the inner wall of the fixing frame. Servo motors are fixedly connected to the lower surfaces of the hollow plates. The main shafts of the servo motors are fixedly connected with fans.

[0007] In one example, convex blocks are fixedly connected to the inner walls of both the first mounting shell and the second mounting shell, and all the convex blocks are arranged in an array.

[0008] In one example, square ventilation holes are arranged on both sides of the base.

[0009] In one example, a fixing component is provided between the first mounting shell and the second mounting shell. The fixing component includes a first fixing block and a second fixing block. The first fixing block is fixedly connected to the second mounting shell, and the second fixing block is fixedly connected to the first mounting shell. A plug rod is fixedly connected to the lower surface of the first fixing block, and a through slot is provided on the second fixing block.

[0010] In one example, a placement groove is provided on the side wall of the plug rod. A rotating rod is rotatably connected in the placement groove. A torsion spring is installed between the rotating rod and the plug rod. A blocking block is fixedly connected to one side of the rotating rod in the placement groove, and a clamping groove is provided on the side wall of the slot.

[0011] In one example, a push rod is slidably connected in the plug rod. The push rod extends into the placement groove. The push rod penetrates downward through the plug rod, and a spring is fixedly connected between the push rod and the plug rod.

[0012] The torque sensor with anti-electromagnetic interference proposed by the present utility model can bring the following beneficial effects:

[0013] First, by setting the heat dissipation component, both the first mounting shell and the second mounting shell are made of metal materials with good electrical conductivity. Together with the metal shell of the sensor itself, a double-layer shielding shell is formed, improving the anti-interference performance against electromagnetic waves. Through this installation method, it is convenient to replace the sensor inside. During use, the servo motor in the base drives the fan to rotate, increasing the heat dissipation speed of the internal sensor and preventing the sensor from getting too hot.

[0014] Second, by setting the fixing component, when the plug rod is inserted into the slot, during insertion, blocked by the side wall of the slot, the rotating rod turns into the placement groove, and the torsion spring stores energy. When it reaches the clamping groove area, the rotating rod reverses, the rotating rod extends into the clamping groove, and the rotating rod rests on the blocking block. At this time, the rotating rod locks the first fixing block and the second fixing block, fixing the sensor. When disassembling, the push rod slides upward, pushing the side wall of the rotating rod, causing the rotating rod to turn into the placement groove. Without the blocking of the rotating rod, the first fixing block and the second fixing block can be separated. The installation and disassembly are convenient, saving time for replacing the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present utility model and form a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0016] In the drawings:

[0017] Figure 1 It is a schematic structural diagram of a torque sensor with anti-electromagnetic interference of the present utility model.

[0018] Figure 2Schematic structural diagram of the first mounting shell and the second mounting shell of a torque sensor with anti-electromagnetic interference according to the present utility model.

[0019] Figure 3 Schematic sectional structural diagram of the base of a torque sensor with anti-electromagnetic interference according to the present utility model.

[0020] Figure 4 Schematic structural diagram of the fixing assembly of a torque sensor with anti-electromagnetic interference according to the present utility model.

[0021] Figure 5 Schematic structural diagram of the rotating rod and the clamping groove of a torque sensor with anti-electromagnetic interference according to the present utility model.

[0022] In the figure: 1, mounting plate; 2, base; 3, first mounting shell; 4, second mounting shell; 5, heat dissipation assembly; 51, vertical plate; 52, fixing frame; 53, hollowed-out plate; 54, servo motor; 55, fan; 6, convex block; 7, square ventilation hole; 8, fixing assembly; 81, first fixing block; 82, second fixing block; 83, insertion rod; 9, rotating rod; 10, blocking block; 11, clamping groove; 12, push rod; 13, spring. Detailed implementation manners

[0023] In order to more clearly illustrate the overall concept of the present utility model, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0024] Such as Figures 1 to 5As shown, an embodiment of the utility model proposes an electromagnetic interference resistant torque sensor, including a mounting plate 1, the upper surface of the mounting plate 1 is fixedly connected to the base 2, the upper surface of the base 2 is fixedly connected to the first mounting shell 3, a second mounting shell 4 is arranged above the first mounting shell 3, the first mounting shell 3 and the second mounting shell 4 are both made of metal and have good conductivity, a mounting groove is arranged in the base 2, a heat dissipation component 5 is arranged in the mounting groove, the first mounting shell 3 is connected to the base 2, the heat dissipation component 5 includes a vertical plate 51, the vertical plate 51 is fixed on the side wall of the mounting groove, both sides of the vertical plate 51 are fixedly connected to the fixing frame 52, the inner wall of the fixing frame 52 is fixedly connected to the hollow plate 53, and the lower surface of the hollow plate 53 is fixedly connected to the servo motor 5 4, the main shaft of the servo motor 54 is fixedly connected to the fan 55. When in use, the sensor for detecting the torque is installed between the first mounting shell 3 and the second mounting shell 4, and the sensor is fixed by the first mounting shell 3 and the second mounting shell 4. The first mounting shell 3 and the second mounting shell 4 are both made of metal with good conductivity, and together with the metal shell of the sensor itself, a double-layer shielding shell is formed to improve the anti-electromagnetic interference performance. Through this installation method, it is convenient to replace the sensor therein. When in use, the servo motor 54 in the base 2 drives the fan 55 to rotate, thereby improving the heat dissipation speed of the internal sensor and avoiding the high temperature of the sensor. A plurality of through holes are set on the hollow plate 53, and only air flow is allowed to pass through.

[0025] like Figure 2 and Figure 3 As shown, the inner walls of the first mounting shell 3 and the second mounting shell 4 are fixedly connected to the protrusions 6, and all the protrusions 6 are arranged in an array. Square ventilation holes 7 are provided on both sides of the base 2. Two fans 55 rotate one forward and the other reversely. The airflow enters the base 2 from the square ventilation holes 7 on one side. Due to the effect of the protrusions 6, the protrusions 6 are in contact with the sensor during installation to fix the sensor, and there are gaps between the protrusions 6. When the airflow enters, it passes through the gap to blow out the internal heat, and the airflow is blown out from the square ventilation holes 7 on the other side to form a complete air duct, thereby improving the heat dissipation effect.

[0026] like Figure 4 and Figure 5As shown, a fixing component 8 is provided between the first mounting shell 3 and the second mounting shell 4. The fixing component 8 includes a first fixing block 81 and a second fixing block 82. The first fixing block 81 is fixedly connected to the second mounting shell 4, and the second fixing block 82 is fixedly connected to the first mounting shell 3. A plug rod 83 is fixedly connected to the lower surface of the first fixing block 81. A through slot is provided on the second fixing block 82. A placement groove is provided on the side wall of the plug rod 83. A rotating rod 9 is rotatably connected in the placement groove. A torsion spring is installed between the rotating rod 9 and the plug rod 83. A blocking block 10 is fixedly connected to one side of the rotating rod 9 in the placement groove. A clamping slot 11 is provided on the side wall of the slot. When fixing the sensor on the first mounting shell 3 and the second mounting shell 4, align the first fixing block 81 and the second fixing block 82 on the first mounting shell 3 and the second mounting shell 4, and insert the plug rod 83 into the slot. When inserting, blocked by the side wall of the slot, the rotating rod 9 rotates into the placement groove, and the torsion spring stores energy. When it drops to the area of the clamping slot 11, the rotating rod 9 reverses, the rotating rod 9 extends into the clamping slot 11, and the rotating rod 9 rests on the blocking block 10. At this time, the rotating rod 9 clamps the first fixing block 81 and the second fixing block 82, fixing the sensor, which is convenient for installation and saves time.

[0027] As Figure 5 shown, a push rod 12 is slidably connected in the plug rod 83. The push rod 12 extends into the placement groove. The push rod 12 penetrates downward through the plug rod 83. A spring 13 is fixedly connected between the push rod 12 and the plug rod 83. When separating the first fixing block 81 and the second fixing block 82, push the push rod 12. The push rod 12 slides upward, and the push rod 12 pushes the side wall of the rotating rod 9, causing the rotating rod 9 to rotate into the placement groove. Without the blocking of the rotating rod 9, the first fixing block 81 and the second fixing block 82 can be separated, and the disassembly is also convenient, saving time for replacing the sensor.

[0028] Working principle: Place the sensor on the first housing 3. Align the first fixing block 81 and the second fixing block 82 on the first mounting shell 3 and the second mounting shell 4, and insert the plug rod 83 into the slot. When inserting, blocked by the side wall of the slot, the rotating rod 9 rotates into the placement groove, and the torsion spring stores energy. When it drops to the area of the clamping slot 11, the rotating rod 9 reverses, the rotating rod 9 extends into the clamping slot 11, and the rotating rod 9 rests on the blocking block 10. At this time, the rotating rod 9 clamps the first fixing block 81 and the second fixing block 82. During use, one of the two fans 55 rotates forward and the other rotates in reverse. The air flow enters the base 2 from the square ventilation holes 7 on one side. Due to the action of the convex blocks 6, when installing, the convex blocks 6 contact the sensor, fixing the sensor. There is a gap between the convex blocks 6. When the air flow enters, it passes through the gap, blowing out the internal heat. The air flow blows out from the square ventilation holes 7 on the other side, forming a complete air duct, improving the heat dissipation effect.

[0029] Each embodiment in this specification is described in a progressive manner. For the identical or similar parts among the embodiments, reference can be made to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for the relevant parts, reference can be made to the partial description of the method embodiment.

[0030] The above description is only for the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A torque sensor resistant to electromagnetic interference, characterized in that: The invention comprises a mounting plate (1), the upper surface of the mounting plate (1) is fixedly connected to a base (2), the upper surface of the base (2) is fixedly connected to a first mounting shell (3), a second mounting shell (4) is arranged above the first mounting shell (3), the first mounting shell (3) and the second mounting shell (4) are both made of metal and have good electrical conductivity, a mounting groove is arranged in the base (2), a heat dissipation component (5) is arranged in the mounting groove, and the first mounting shell (3) is connected to the base (2).

2. The electromagnetic interference resistant torque sensor according to claim 1, characterized in that: The heat dissipation assembly (5) comprises a vertical plate (51), the vertical plate (51) is fixed on the side wall of the installation groove, both sides of the vertical plate (51) are fixedly connected to the fixing frame (52), the inner wall of the fixing frame (52) is fixedly connected to the hollow plate (53), the lower surface of the hollow plate (53) is fixedly connected to the servo motor (54), and the main shaft of the servo motor (54) is fixedly connected to the fan (55).

3. The electromagnetic interference resistant torque sensor according to claim 1, characterized in that: The inner walls of the first mounting shell (3) and the second mounting shell (4) are both fixedly connected with protrusions (6), and all of the protrusions (6) are arranged in an array.

4. The electromagnetic interference resistant torque sensor according to claim 3, characterized in that: Square ventilation holes (7) are provided on both sides of the base (2).

5. The electromagnetic interference resistant torque sensor according to claim 4, characterized in that: A fixing assembly (8) is provided between the first mounting shell (3) and the second mounting shell (4), and the fixing assembly (8) comprises a first fixing block (81) and a second fixing block (82), the first fixing block (81) is fixedly connected to the second mounting shell (4), the second fixing block (82) is fixedly connected to the first mounting shell (3), the lower surface of the first fixing block (81) is fixedly connected to the insertion rod (83), and the second fixing block (82) is provided with a through slot.

6. The electromagnetic interference resistant torque sensor according to claim 5, characterized in that: The side wall of the insertion rod (83) is provided with a placement groove, in which a rotating rod (9) is rotatably connected, a torsion spring is installed between the rotating rod (9) and the insertion rod (83), a blocking block (10) is fixedly connected to one side of the rotating rod (9) in the placement groove, and a clamping groove (11) is provided on the side wall of the slot.

7. The electromagnetic interference resistant torque sensor according to claim 5, characterized in that: The insert rod (83) is slidably connected to the push rod (12), the push rod (12) extends into the placement groove, the push rod (12) penetrates the insert rod (83) downward, and a spring (13) is fixedly connected between the push rod (12) and the insert rod (83).

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