Forward and reverse motion measuring system for mechanical transmission part

Abstract

The utility model discloses a mechanical transmission part forward and reverse motion measuring system, which comprises a clamping device used for clamping a transmission device to be measured, an additional load device and an output load measuring device are arranged on the clamping device, and a power driving device and a driving force measuring device are connected onto a rotating shaft of the transmission device to be measured. The system is provided with the driving device capable of rotating forwards and backwards, and the driving device can rotate forwards and backwards according to requirements and apply loads. Through an input load, an output load, an angular velocity and a velocity measured by a driving force measuring device, an output force measuring device and an additional load device, forward and reverse efficiencies of a mechanical transmission functional part of a specific type and specification in a loaded state are obtained through calculation; by applying the additional load and the input load under the actual working condition and measuring the actual motion parameters, the interference of the machining error of the transmission functional part on the efficiency detection result is avoided, and the detection result is reliable and accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a forward and reverse motion measurement system for a mechanical transmission component. Background Art

[0002] Electromechanical actuators are widely used in industrial machine tools, engineering machinery and machinery manufacturing due to their simple structure, easy maintenance, reliable performance, high energy efficiency and good control characteristics. The research and development and application of high-precision and high-performance mechanical transmission functional components are developing rapidly. In order to achieve the development goal of high efficiency and energy saving, it is very necessary to measure and analyze the transmission efficiency characteristics, one of its important performance characteristics.

[0003] Based on efficiency measurement The basic principle of the measurement test bench is difficult to clamp the transmission parts with smaller size. The clamping fixture requires high precision and it is difficult to apply additional loads. The detected data has a large error with the transmission efficiency under actual working conditions. Transmission efficiency measurement platforms based on this principle often use devices such as eddy current brakes for loading, which can only generate loads opposite to the direction of motion. They cannot effectively drive and load during reverse transmission, making reverse transmission efficiency measurement difficult. Furthermore, calculating transmission efficiency by measuring the motor's input torque and the transmission component's output tension passively introduces machining position errors, making it impossible to accurately determine the specific transmission efficiency of components with varying precision.

[0004] In order to directly simulate the actual motion conditions of mechanical transmission functional components, a test measurement platform is proposed to adopt a full-closed-loop measurement method to obtain actual motion parameters such as torque, load, rotational speed and motion speed, and calculate the accurate transmission efficiency. However, the output results of existing new test bench solutions are mostly time domain distributions of force-time (Ft) curves and torque-time (Tt) curves, which fail to achieve an analytical explanation of the (η-t) relationship and clearly demonstrate the effective forward and reverse transmission efficiency of a single product. In addition, a single experimental device can only measure the efficiency of mechanical transmission components of a single structure and specific size, and cannot realize efficiency analysis and measurement of multiple types of transmission functional components. Utility Model Content

[0005] In view of the above-mentioned defects or shortcomings, the purpose of the present invention is to provide a forward and reverse motion measurement system for mechanical transmission components.

[0006] In order to achieve the above objectives, the technical solution of the utility model is:

[0007] A forward and reverse motion measurement system for a mechanical transmission component comprises: a clamping device for clamping the transmission device to be tested, an additional load device and an output load measuring device installed on the clamping device, and a power driving device and a driving force measuring device connected to the rotating shaft of the transmission device to be tested.

[0008] The clamping device is a modular clamping device.

[0009] The modular clamping device includes a flange that matches the transmission device to be tested, and the transmission device to be tested is fixedly mounted on the flange by bolts.

[0010] The power driving device is a rotary servo motor.

[0011] The driving force measuring device is a speed torque sensor.

[0012] The load measuring device is a tension-compression force sensor.

[0013] The additional load device is a linear servo motor.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model provides a forward and reverse motion measurement system for mechanical transmission components. The system is provided with a driving device capable of forward and reverse rotation, can perform forward and reverse rotation according to demand, and applies a load. The input load, output load, angular velocity and speed obtained by measuring a driving force measuring device, an output force measuring device and an additional load device are used to calculate the forward and reverse efficiency of a mechanical transmission functional component of a specific type and specification under a loaded state. The transmission efficiency is obtained by measuring actual motion parameters by applying an additional load and an input load under actual working conditions, thereby avoiding interference of the processing error of the transmission functional component itself on the detection result, and the detection result is reliable and accurate.

[0016] Furthermore, the present invention can adapt to various types and specifications of mechanical transmission functional components by replacing different clamping devices and connecting power drive devices, driving force measuring devices, output load measuring devices and additional load devices, effectively reducing the testing costs of production enterprises and providing a basis for performance optimization of mechanical transmission functional components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the precise measurement system for forward and reverse efficiency of mechanical transmission functional components of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the modular clamping device of the utility model.

[0019] In the figure, 1-power driving device; 2-driving force measuring device; 3-transmission device to be tested; 4-output load measuring device; 5-clamping device; 6-additional load device. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0021] Aiming at the problems that exist in the transmission efficiency measurement of various types and specifications of mechanical transmission functional components carried out by production and scientific research enterprises, such as the influence of functional component manufacturing dimensional errors, the inability to apply additional loads, and the difficulty in clamping and testing various types of transmission functional components, this utility model proposes a forward and reverse efficiency precision measurement system for mechanical transmission functional components, such as Figure 1 、 2 As shown, a forward and reverse motion measurement system of a mechanical transmission component includes: a clamping device 5 for clamping a transmission device 3 to be tested, an additional load device 6 and an output load measuring device 4 are installed on the clamping device 5, and a power drive device 1 and a driving force measuring device 2 are connected to the rotating shaft of the transmission device 3 to be tested, wherein; the power drive device 1 is a rotary servo motor; the driving force measuring device 2 is a speed torque sensor; the load measuring device 4 is a tension and compression force sensor; and the additional load device 6 is a linear servo motor.

[0022] The additional load device 6 is used to apply a reverse additional load to the clamping device 5 so that the reverse additional load is transmitted to the transmission device 3 under test and detect the additional load parameters of the transmission device 3 under test. The output load measuring device 4 is used to detect the output parameters of the transmission device 3 under test. Specifically, the output parameters include output load and speed parameters. The driving force measuring device 2 is used to detect the driving force parameters.

[0023] It should be noted that in the present invention, the clamping device 5 is a modular clamping device, specifically comprising: a flange that matches the transmission device 3 to be tested, and the transmission device 3 to be tested is fixed on the flange by bolts. Its main purpose is to be able to support and fix the transmission device 3 to be tested, load it, and perform data monitoring, and the clamping device 5 does not affect the normal operation of the transmission device 3 to be tested, so its structure is not limited to the structure given in this embodiment, as long as it can achieve the above purpose. Its main feature is that the common rod has unified characteristics and has a similar radial circular cross-section. The clamping device 5 adopts a modular design to achieve the clamping of various types and specifications of mechanical transmission functional components. The method obtains the input load, output load, angular velocity and speed obtained by measuring 6 by the driving force measuring device 2, the output force measuring device 4 and the additional load device, and obtains the forward and reverse efficiency of the mechanical transmission functional components of a specific type and specification under the loaded state through analysis and calculation.

[0024] First, when measuring different types and specifications of the transmission device 3 to be tested, the modular clamping devices 5 of different sizes are replaced according to the size and structural characteristics, so that the two are assembled and fixedly connected. Secondly, when measuring the forward transmission efficiency, the transmission device 3 to be tested is assembled and connected with the clamping device 5, the efficiency measurement device is started, the power drive device 1 drives the transmission device 3 to be tested in the forward direction, the driving force is detected and output by the driving force measurement device 2, the additional load device 6 is actuated to give the modular clamping device 5 a reverse additional load so that it is transmitted to the transmission device 3 to be tested, the size of which is detected and output by the additional load device 6, and the output load of the transmission device 3 to be tested is measured and output by the output load measurement device 4. The real-time transmission efficiency of the mechanical transmission functional component 3 to be tested is obtained by online calculation of the forward driving force measured and output by the power drive device 1, the output load measurement device 4 and the additional load device 6, the output load under the action of the reverse additional load, the angular velocity and the speed parameters.

[0025] In addition, when measuring the reverse transmission efficiency, the transmission device 3 to be tested is assembled and connected to the clamping device 5, the efficiency measuring device is started, the power drive device 1 drives the transmission device 3 to be tested in reverse, the driving force is detected and output by the driving force measuring device 2, the additional load device 6 is actuated to give the clamping 5 a positive additional load so that it is transmitted to the transmission device 3 to be tested, the size of which is detected and output by the additional load device 6, and the output load of the transmission device 3 to be tested is measured and output by the output load measuring device 4. The real-time transmission efficiency of the transmission device 3 to be tested is obtained by online calculation of the reverse driving force measured and output by the power drive device 1, the output load measuring device 4 and the additional load device 6, the output load under the action of the positive additional load, the angular velocity and the speed parameters.

[0026] The working process of this utility model is:

[0027] 1. Start the power drive device 1 in forward / reverse direction, apply a reverse additional load according to the load range of the operating condition of the power drive device 3, and transmit the reverse additional load to the power drive device 3;

[0028] 2. Detecting the additional load parameters of the output power drive device 3, the input driving force parameters of the power drive device 1, and the output parameters;

[0029] 3. According to the additional load parameters, input driving force parameters, and output parameters, the forward / reverse transmission efficiency is obtained and output.

[0030] In this embodiment, the load selection is determined based on the load under different actual operating conditions within the rated load range of the mechanical transmission component. Specifically, the additional load generated by the additional load device 6 is the load under actual operating conditions of the mechanical transmission component and is within the rated load range of the mechanical transmission component. Specifically, the additional load device 6 is characterized by being able to apply a force opposite to the forward / reverse transmission force under both forward and reverse driving conditions. The load selection is determined based on the load under different actual operating conditions within the rated load range of the mechanical transmission component.

[0031] The device and method for accurately measuring the forward and reverse efficiencies of mechanical transmission functional components of the utility model apply additional loads and input loads under actual working conditions, and calculate the transmission efficiency by measuring actual motion parameters, thereby avoiding interference of machining errors of the transmission functional components themselves on the test results, and the test results are reliable and accurate.

[0032] Through the implementation of the utility model, an efficient and high-precision feasible measuring device and method is provided for the precise measurement of the forward and reverse efficiency of specific mechanical transmission functional components of multiple types and specifications. The problems that the traditional method cannot identify the processing errors of specific products and cannot apply loads to simulate the transmission efficiency under actual working conditions are avoided. The need to assemble the product and install it in the actual machine for testing is avoided, and the efficiency detection cost of mechanical transmission functional components of manufacturing enterprises is effectively reduced by more than 2 / 3.

[0033] For those skilled in the art, it is obvious that the above-mentioned specific examples are only preferred embodiments of the present invention. Therefore, any improvements and changes that may be made by those skilled in the art to certain parts of the present invention still reflect the principles of the present invention and still achieve the purpose of the present invention, and all fall within the scope of protection of the present invention.

Claims

1. A forward and reverse motion measurement system for a mechanical transmission component, characterized in that: include: A clamping device (5) is used for clamping a transmission device (3) to be tested, wherein an additional load device (6) and an output load measuring device (4) are installed on the clamping device (5), and a power driving device (1) and a driving force measuring device (2) are connected to the rotating shaft of the transmission device (3) to be tested.

2. The forward and reverse motion measurement system of a mechanical transmission component according to claim 1, characterized in that: The clamping device (5) is a modular clamping device.

3. The forward and reverse motion measurement system of a mechanical transmission component according to claim 2, characterized in that: The modular clamping device comprises a flange plate that matches the transmission device (3) to be tested, and the transmission device (3) to be tested is fixedly mounted on the flange plate by means of bolts.

4. The forward and reverse motion measurement system of a mechanical transmission component according to claim 1, characterized in that: The power drive device (1) is a rotary servo motor.

5. The forward and reverse motion measurement system of a mechanical transmission component according to claim 1, characterized in that: The driving force measuring device (2) is a speed torque sensor.

6. The forward and reverse motion measurement system of a mechanical transmission component according to claim 1, characterized in that: The load measuring device (4) is a tension-compression force sensor.

7. The forward and reverse motion measurement system of a mechanical transmission component according to claim 1, characterized in that: The additional load device (6) is a linear servo motor.

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