Inertia preventing device with torque testing function

Abstract

The invention relates to an inertia preventing device with a torque testing function, and relates to the technical field of inertia preventing devices, the inertia preventing device comprises a motor, a shaft steel sleeve, an inertia wheel, a friction column, a spring, an adjusting screw rod and a force measuring piece, the shaft steel sleeve is arranged on an output shaft of the motor in a sleeving mode; the inertia wheel is coaxially and fixedly connected with the shaft steel sleeve; the friction column is mounted in the inertia wheel; one end of the spring is fixedly connected with one end, far away from the shaft steel sleeve, of the friction column, and the other end of the spring is connected with the adjusting screw rod; one end of the adjusting screw rod is rotationally connected to the inertia wheel, and the other end of the adjusting screw rod is propped against one end, far away from the friction column, of the spring; the two ends of the force measuring piece are connected with the friction column and the inertia wheel respectively, and the force measuring piece is used for detecting the friction force between the friction column and the inertia wheel. The method has the effect of improving the system stability.

Description

Technical Field

[0001] The present application relates to the technical field of inertia-preventing devices, and in particular to an inertia-preventing device with a torque testing function. Background Art

[0002] Existing inertia wheel devices are widely used in a variety of mechanical equipment, especially in application scenarios where motor reversal needs to be prevented. These devices suppress motor reversal by combining inertia and friction, thereby maintaining system stability and safety.

[0003] In actual applications, in order to prevent the motor from reversing, the prior art generally uses an inertia wheel device with a spring and a friction column. Specifically, when the motor is running normally, the resistance provided by the spring and the friction column drives the motor and the inertia wheel to rotate synchronously; once the motor stops running, although the pressure difference at both ends of the oil cylinder will drive the oil pump and the motor shaft to reverse, due to inertia, the inertia wheel continues to rotate in the original direction, and the spring and the friction column are used to reduce the number of reversal circles of the motor, and finally achieve the goal of balancing the pressure of the two chambers of the oil cylinder.

[0004] However, the inertia wheel device in the prior art has significant defects, mainly manifested in the instability of friction. During long-term use, due to wear and other factors, the friction will change, resulting in the device being unable to consistently perform the expected effect, thereby affecting the stability and reliability of the entire system. Summary of the invention

[0005] In order to improve the stability of the system, the present application provides an inertia-blocking device with a torque testing function.

[0006] The present application provides an inertia-blocking device with a torque testing function, which adopts the following technical solution: An inertia-blocking device with a torque testing function, comprising: Motor; A shaft steel sleeve, sleeved on the output shaft of the motor; An inertia wheel is coaxially and fixedly connected to the shaft steel sleeve; A friction column, mounted in the inertia wheel; A spring, one end of which is fixedly connected to an end of the friction column away from the shaft steel sleeve, and the other end of which is connected to the adjusting screw; An adjusting screw, one end of which is rotatably connected to the inertia wheel, and the other end of which abuts against an end of the spring away from the friction column; The force measuring piece has two ends respectively connected to the friction column and the inertia wheel, and is used to detect the friction force between the friction column and the inertia wheel.

[0007] By adopting the above technical solution, when external torque acts on the device, the inertia wheel will try to resist this rotation tendency, thereby generating friction. The force measuring piece can accurately detect the magnitude of this friction and convert it into a torque value through a conversion relationship. By adjusting the compression degree of the screw adjustment spring, the magnitude of the friction can be changed, thereby achieving measurement of different torque ranges; When the external torque suddenly disappears, the inertia wheel keeps slowing down the change of rotation speed due to its large rotational inertia. The friction between the friction column and the inertia wheel can further limit the rotation of the inertia wheel, thereby achieving the effect of preventing inertia. The design of the spring and friction column can effectively prevent damage to the device caused by excessive external torque. The precise measurement and timely feedback of the force measuring piece can ensure that the device is shut down or adjusted in time under abnormal circumstances, thereby achieving accurate torque measurement and effective inertia control, thereby improving the stability of the system.

[0008] Optionally, the inertia wheel and its wear-resistant bushing are sintered into one piece by integral powder metallurgy.

[0009] By adopting the above technical solution, the powder metallurgy sintering technology can generate high-purity, high-density materials with uniform and dense microstructure, high strength and high hardness, so that the inertia wheel and its wear-resistant bushing can withstand greater mechanical stress and wear, thereby improving the durability and service life of the entire device; In addition, the inertia wheel and its wear-resistant bushing are sintered as a whole using powder metallurgy, avoiding the stress concentration, looseness and corrosion problems that may be caused by traditional connection methods (such as welding, bolt connection, etc.), thereby improving the connection strength and stability between components.

[0010] Optionally, the force measuring member is a friction sensor, and the friction sensor detects the friction between the friction column and the inertia wheel.

[0011] By adopting the above technical solution, it is possible to accurately detect the friction between the friction column and the inertia wheel, ensuring that the friction is always within the set range, thereby improving the reliability and stability of the device; at the same time, by monitoring the friction changes in real time through the sensor, the spring compression amount can be adjusted in time during use, further ensuring the stable performance of the system during long-term operation.

[0012] Optionally, a wire locking ring is provided on the upper portion of the adjusting screw.

[0013] By adopting the above technical solution, the fixing stability of the adjusting screw can be increased, and the adjusting screw can be effectively prevented from loosening or falling off during use. It is very important to ensure the safe operation of the entire torque testing device, and it can effectively avoid equipment failure or safety accidents caused by loose components. In addition, when the device needs to be maintained or overhauled, the operator can easily remove the wire lock ring and inspect, clean or replace the adjusting screw, thereby improving the efficiency of maintenance work and reducing maintenance costs.

[0014] Optionally, a plurality of friction columns are provided, and the plurality of friction columns are evenly arranged inside the inertia wheel.

[0015] By adopting the above technical solution and increasing the number of friction columns, when a friction column is worn to a certain extent, the other friction columns can still continue to work, thereby ensuring the continuous and stable operation of the entire device, thereby improving the accuracy and stability of the torque test, and enhancing the wear resistance and service life.

[0016] Optionally, the spring is a coil spring.

[0017] By adopting the above technical solution, the coil spring has good elastic properties. When an external force acts on it, it will produce corresponding deformation, but once the external force disappears, it can quickly return to its original state. This property enables the coil spring to provide stable elastic support for the inertia wheel, thereby easily ensuring that the inertia wheel can maintain a stable rotation state during the torque test. In addition, during the torque test, when the external torque changes suddenly, the coil spring can respond quickly and absorb part of the impact energy, thereby easily protecting the inertia wheel and other components from damage.

[0018] Optionally, the shaft steel sleeve is connected to the output shaft of the motor through a flat keyway, and the flat key is embedded in the keyway.

[0019] By adopting the above technical solution, when the flat key is embedded in the keyway, a firm connection can be formed to ensure that the shaft steel sleeve and the output shaft of the motor will not slide or fall off relative to each other; In addition, since the two side surfaces of the flat key are working surfaces, they are in close contact with the side surfaces of the keyway, thus forming an effective torque transmission path, which can ensure that the torque will not be lost due to looseness or slippage of the connection during the transmission process, thereby improving the efficiency of torque transmission.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: The inertia wheel and its wear-resistant bushing are sintered as a whole by powder metallurgy, which improves the machining accuracy of the friction hole and makes the friction force more stable and reliable; The force measuring piece (friction force sensor) detects the friction force between the friction column and the inertia wheel through the sensor, and adjusts the spring compression amount by adjusting the screw according to the detection result to ensure that the friction force remains stable during assembly and use; The upper part of the spring adopts a threaded adjustment screw and a wire locking ring to achieve precise adjustment of the friction force and anti-loosening and anti-falling functions, making disassembly, assembly and maintenance convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a partial cross-sectional view intended to show a spring in an embodiment of the present application; Figure 2 It is a partial cross-sectional view intended to show the internal structure of the inertia wheel in the embodiment of the present application; Figure 3 It is an overall cross-sectional view intended to show the internal structure of the inertia wheel in the embodiment of the present application.

[0022] Description of reference numerals: 1. Motor; 2. Shaft steel sleeve; 3. Inertia wheel; 4. Friction column; 5. Spring; 6. Adjusting screw; 61. Wire lock ring; 7. Force measuring piece. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 This application is described in further detail.

[0024] The present application embodiment discloses an inertia-blocking device with a torque testing function. Figure 1 and Figure 2 An inertia-blocking device with a torque testing function comprises a motor 1, a shaft steel sleeve 2, an inertia wheel 3, a friction column 4, a spring 5, an adjustment screw 6 and a force measuring piece 7. The shaft steel sleeve 2 is connected to the output shaft of the motor 1 through a flat keyway, and the flat key is embedded in the keyway.

[0025] When in use, the flat key is embedded in the keyway. When the flat key is embedded in the keyway, a firm connection can be formed to ensure that there is no relative sliding or falling off between the shaft steel sleeve 2 and the output shaft of the motor 1, thereby preventing the occurrence of slipping.

[0026] Reference Figure 2 The inertia wheel 3 and its wear-resistant bushing are integrally sintered by powder metallurgy, and the inertia wheel 3 is coaxially fixedly connected with the shaft steel sleeve 2.

[0027] Specifically, the powder metallurgy sintering technology can generate high-purity, high-density materials with uniform and dense microstructure, high strength and high hardness, so that the inertia wheel 3 and its wear-resistant bushing can withstand greater mechanical stress and wear, thereby improving the durability and service life of the entire device.

[0028] Reference Figure 2 and Figure 3There are multiple friction columns 4, and the multiple friction columns 4 are evenly arranged inside the inertia wheel 3. The friction columns 4 are installed in the inertia wheel 3. One end of the spring 5 is fixedly connected to the end of the friction column 4 away from the shaft steel sleeve 2, and the other end is connected to the inner wall of the inertia wheel 3. In the embodiment of the present application, the spring 5 is a coil spring.

[0029] Specifically, the coil spring has good elastic properties. When an external force acts on it, it will produce corresponding deformation, but once the external force disappears, it can quickly return to its original state. This property enables the coil spring to provide stable elastic support for the inertia wheel 3, thereby easily ensuring that the inertia wheel 3 can maintain a stable rotation state during the torque test.

[0030] Reference Figure 2 and Figure 3 One end of the adjusting screw 6 is rotatably connected to the inertia wheel 3, and the other end is in contact with the end of the spring 5 away from the friction column 4. A wire lock ring 61 is provided on the upper part of the adjusting screw 6. The two ends of the force measuring piece 7 are respectively connected to the friction column 4 and the inertia wheel 3, and are used to detect the friction between the friction column 4 and the inertia wheel 3. In the embodiment of the present application, the force measuring piece 7 is a friction sensor.

[0031] Specifically, when an external torque acts on the device, the inertia wheel 3 will try to resist this rotation tendency, thereby generating friction. The force measuring member 7 can accurately detect the magnitude of this friction and convert it into a torque value through a conversion relationship. By adjusting the compression degree of the spring 5 by adjusting the screw 6, the magnitude of the friction can be changed, thereby achieving measurement of different torque ranges; When the external torque suddenly disappears, the inertia wheel 3 keeps slowing down the change of the rotation speed because the inertia wheel 3 has a large moment of inertia. The friction between the friction column 4 and the inertia wheel 3 can further limit the rotation of the inertia wheel 3, thereby achieving the effect of preventing inertia. The design of the spring 5 and the friction column 4 can effectively prevent damage to the device due to excessive external torque. The precise measurement and timely feedback of the force measuring piece 7 can ensure that the device is shut down or adjusts its working state in time under abnormal circumstances, thereby achieving precise torque measurement and effective inertia control, thereby improving the stability of the system.

[0032] When in use, first adjust the wire lock ring 61, which can effectively prevent the adjusting screw 6 from loosening or falling off during use, and increase the fixing stability of the adjusting screw 6. Then, start the motor 1 to rotate, and then turn off the motor 1 to perform an inertia test. During the test, the friction sensor detects the friction between the friction column 4 and the inertia wheel 3, and feeds back the detection result to the operator. Then, the adjustment screw 6 adjusts the compression amount of the spring 5 according to the data provided by the friction sensor, so as to accurately control the magnitude of the friction force, making the friction force more stable and reliable, avoiding the problem of unstable friction force in traditional devices, thereby ensuring that the device always maintains good performance during long-term use.

[0033] The implementation principle of the inertia prevention device with torque testing function in the embodiment of the present application is as follows: firstly, the wire lock ring 61 is adjusted to effectively prevent the adjustment screw 6 from loosening or falling off during use, thereby increasing the fixing stability of the adjustment screw 6. Then, the motor 1 is started to rotate, and then the motor 1 is turned off to perform an inertia test. During the test, the friction sensor detects the friction between the friction column 4 and the inertia wheel 3, and feeds back the detection result to the operator. Then, the adjustment screw 6 adjusts the compression amount of the spring 5 according to the data provided by the friction sensor, so as to accurately control the magnitude of the friction force, making the friction force more stable and reliable, avoiding the problem of unstable friction force in traditional devices, thereby ensuring that the device always maintains good performance during long-term use.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An inertia-blocking device with torque testing function, characterized in that ,include: Motor (1); A shaft steel sleeve (2) sleeved on the output shaft of the motor (1); An inertia wheel (3) is coaxially and fixedly connected to the shaft steel sleeve (2); A friction column (4) mounted inside the inertia wheel (3); A spring (5), one end of which is fixedly connected to an end of the friction column (4) away from the shaft steel sleeve (2), and the other end of which is connected to the adjustment screw (6); An adjusting screw (6), one end of which is rotatably connected to the inertia wheel (3), and the other end of which abuts against an end of the spring (5) away from the friction column (4); The force measuring member (7) has two ends respectively connected to the friction column (4) and the inertia wheel (3), and is used to detect the friction force between the friction column (4) and the inertia wheel (3).

2. The inertia-blocking device with torque testing function according to claim 1, characterized in that: The inertia wheel (3) and its wear-resistant bushing are integrally sintered by integral powder metallurgy.

3. The inertia-blocking device with torque testing function according to claim 1, characterized in that: The force measuring member (7) is a friction sensor, and the friction sensor detects the friction force between the friction column (4) and the inertia wheel (3).

4. The inertia-blocking device with torque testing function according to claim 1, characterized in that: A wire locking ring (61) is provided on the upper portion of the adjusting screw (6).

5. The inertia-blocking device with torque testing function according to claim 1, characterized in that: A plurality of the friction columns (4) are provided, and the plurality of the friction columns (4) are evenly arranged inside the inertia wheel (3).

6. The inertia-blocking device with torque testing function according to claim 1, characterized in that: The spring (5) is a coil spring.

7. The inertia-blocking device with torque testing function according to claim 1, characterized in that: The shaft steel sleeve (2) is connected to the output shaft of the motor (1) via a flat keyway, and the flat key is embedded in the keyway.

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