Test device and test method for vehicle running motor

Abstract

Embodiments of the present application provide a kind of vehicle running motor testing device and testing method;Motor testing device includes power simulation component and load simulation component;Power simulation component is connected to the output end of the motor to be tested;Load simulation component is arranged on the side of power simulation component;Load simulation component can be moved relative to power simulation component;Load simulation component moves to the state of contact with power simulation component, for applying load to power simulation component.By load simulation component simulating different geometric states and rail disease line conditions, motor output speed stability test can be carried out before vehicle installation and debugging, with the advantages of low test cost, short test cycle, high test efficiency and small space occupied.

Description

Technical Field

[0001] This application relates to the technical field of testing devices, and more particularly to testing devices and methods for vehicle running motors. Background Technology

[0002] Online rail maintenance equipment is an effective way to manage and control rail surface damage, optimize rail profile, improve wheel-rail contact, extend rail service life, and improve rail operation quality. The basic principle of online rail maintenance is to use online rail maintenance equipment to carry large track maintenance machinery to run on the rail line and cut the rail at the same time.

[0003] my country has a vast territory and a complex and varied geographical environment. A railway line may pass through straight sections, sloping sections, and curved sections. Some sections of the rails may also have defects or hidden dangers. Therefore, the running and cutting conditions of maintenance equipment are very complex. The fluctuation of the running speed of track maintenance machinery has a significant impact on the cutting state of the rails. Therefore, online rail maintenance requires high accuracy in the running speed of track maintenance machinery.

[0004] Currently, electric drive is used as a driving method for large-scale road maintenance machinery. It mainly uses electric motors to provide power for the entire vehicle to move. Based on the above, there are high requirements for the stability of the output speed of the motor under complex working conditions such as continuous load fluctuations.

[0005] In existing technologies, a traveling device containing a motor is typically installed on track maintenance equipment, and the motor's performance is tested during the vehicle testing process. This approach suffers from high costs and long development cycles. Furthermore, if the motor fails the test, it needs to be disassembled and replaced, requiring retesting, which further reduces production efficiency.

[0006] Therefore, this application is hereby submitted. Summary of the Invention

[0007] To address one of the aforementioned technical deficiencies, this application provides a testing device and method for a vehicle running motor.

[0008] According to a first aspect of the embodiments of this application, a testing apparatus for a vehicle running motor is provided, comprising:

[0009] The power simulation component is connected to the output terminal of the motor under test;

[0010] A load simulation component is disposed on one side of the power simulation component; the load simulation component is movable relative to the power simulation component; when the load simulation component is moved to a state of contact with the power simulation component, it is used to apply a preset load to the power simulation component.

[0011] According to a second aspect of the embodiments of this application, a method for testing a vehicle running motor is provided.

[0012] Control the operation of the power simulation component to simulate the operating conditions of the equipment with the motor under test installed;

[0013] Control the operation of the load simulation component to simulate the geometric state under preset line conditions;

[0014] The load simulation component is moved to contact the power simulation component, and a preset load is applied to the power simulation component to simulate the line operating conditions under preset conditions.

[0015] The testing device and method for a vehicle running motor provided in this application have the following advantages:

[0016] The technical solution provided in this application embodiment offers a testing device and method for a vehicle running motor, including a power simulation component and a load simulation component. The power simulation component is connected to the output end of the motor under test. The load simulation component is disposed on one side of the power simulation component. The load simulation component is movable relative to the power simulation component. When the load simulation component moves to a state of contact with the power simulation component, it applies a load to the power simulation component. The load simulation component simulates the geometric states of different tracks and the track conditions of tracks with rail defects. It allows for motor output speed stability performance testing before vehicle installation and commissioning, offering advantages such as low testing cost, short testing cycle, high testing efficiency, and small space occupation. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the test device for the vehicle's running motor in this application;

[0019] Figure 2 This is a side view of the test device for the vehicle's running motor in this application.

[0020] Figure 3 This is a top view of the test device for the vehicle's running motor in this application;

[0021] Figure 4 This is a partial cross-sectional view of the load simulation component of this application.

[0022] in:

[0023] 100. Power simulation component; 200. Load simulation component; 300. First working platform; 1. Motor under test; 2. Axle simulation disk; 3. Load application disk; 4. Upper working plate; 5. Lower working plate; 6. Moving guide; 601. Guide slide rail; 602. Guide slider; 7. Mounting plate; 8. Pressurizing cylinder; 9. Inclined pressurizing rod; 10. Power transmission structure; 11. Speed ​​change structure; 12. Power spindle; 13. Load driver; 14. Load transmission structure; 15. Load spindle. Detailed Implementation

[0024] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0025] Figure 1 This is a three-dimensional structural diagram of the motor testing device of this application; Figure 2 This is a side view of the motor testing device of this application; Figure 3 This is a top view of the motor testing device of this application; Figure 4 This is a partial cross-sectional view of the load simulation component of this application.

[0026] The motor testing device provided in the embodiments of this application is used to perform motor-related performance tests before the installation and commissioning of the vehicle with the running motor installed.

[0027] like Figures 1-4 As shown, an embodiment of this application provides a motor testing device, including a power simulation component 100 and a load simulation component 200; the power simulation component 100 is connected to the output terminal of the motor under test 1; the load simulation component 200 is disposed on one side of the power simulation component 100; the load simulation component 200 is movable relative to the power simulation component 100; when the load simulation component 200 is moved to a state of contact with the power simulation component 100, it is used to apply a load to the power simulation component 100.

[0028] During implementation, the load simulation component 200 simulates the geometric state of different tracks, as well as the track conditions of tracks with rail defects. This allows for motor output stability performance testing before the complete vehicle installation and commissioning, offering advantages such as low testing cost, short testing cycle, high testing efficiency, and small space requirement. Furthermore, advancing the motor performance testing timeline effectively reduces the project development cycle.

[0029] As an embodiment of this application, the motor testing device further includes an axle simulation disk 2 and a load application disk 3; the axle simulation disk 2 is disposed at the end of the power simulation component 100 away from the output end of the motor 1 under test, and the motor 1 under test is driven by the power simulation component 100 to rotate the axle simulation disk 2; the load application disk 3 is connected to the load simulation component 200; the load simulation component 200 drives the load application disk 3 to rotate relative to the axle simulation disk 2 in the same or opposite direction; thus realizing the application of load to the axle simulation disk 2 in different directions; when the load simulation component 200 is close to the power simulation component 100, the load application disk 3 is tangent to the axle simulation disk 2.

[0030] In specific implementation, the axle simulation disk 2 is used to simulate the rotational motion of the axle under actual working conditions; the load simulation component 200 drives the load application disk 3 to apply pressure to the axle simulation disk 2 to simulate the resistance under different track conditions. Specifically, when the load simulation component 200 drives the load application disk 3 to rotate in the same direction relative to the axle simulation disk 2, the load application disk 3 applies greater resistance to the axle simulation disk 2 to simulate uphill track conditions; when the load simulation component 200 drives the load application disk 3 to rotate in the opposite direction relative to the axle simulation disk 2, the load application disk 3 applies a preset pushing force to the axle simulation disk 2 to simulate downhill track conditions.

[0031] It is worth noting that the axle simulation disk 2 is driven by the motor under test 1; the motor under test 1 drives the axle simulation disk 2 to rotate forward and backward, so as to realize the test under the conditions of forward and reverse rotation of the motor under test 1.

[0032] As an embodiment of this application, the motor testing device further includes a first working platform 300; the first working platform 300 is used to support the load simulation component 200; the load simulation component 200 moves along the horizontal plane in the longitudinal direction; wherein, the longitudinal direction is set as the length direction of the first working platform 300, the transverse direction is set as the width direction of the first working platform 300, and the width direction of the first working platform 300 is in the same direction as the extension direction of the output shaft of the motor 1 to be tested.

[0033] As an embodiment of this application, the first working platform 300 includes an upper working plate 4, a lower working plate 5, and a moving guide 6; the lower working plate 5 is spaced above the upper working plate 4, and both the upper working plate 4 and the lower working plate 5 extend in the horizontal direction; the upper surface of the upper working plate 4 is connected to the load simulation component 200; the top end of the moving guide 6 is connected to the lower surface of the upper working plate 4, and the bottom end is connected to the upper surface of the lower working plate 5; it is used to guide the relative movement between the upper working plate 4 and the lower working plate 5.

[0034] In practice, the upper surface of the upper working plate 4 is connected to the load simulation component 200; the movement of the upper working plate 4 relative to the lower working plate 5 realizes the relative movement of the load simulation component 200 relative to the power simulation component 100 in the horizontal direction, thereby realizing the application and separation of the load.

[0035] As an embodiment of this application, the first working platform 300 further includes a pressurizing element and a load adjusting element; the pressurizing element is connected to the upper working plate 4 and the lower working plate 5; the pressurizing element and the moving guide 6 are spaced apart; the pressurizing element is used to drive the upper working plate 4 to move longitudinally relative to the lower working plate 5, so as to drive the load simulation component 200 to move relative to the power simulation component 100 to realize the application and separation of the load.

[0036] The moving guide 6 is used to restrict the degrees of freedom of the upper working plate 4 so that the load application of the load simulation component 200 can only move in one direction.

[0037] As an embodiment of this application, the pressurizing element includes two parallel mounting plates 7, a pressurizing cylinder 8, and an inclined pressurizing rod 9; the mounting plates 7 are installed at intervals along the lateral direction on the lower surface of the lower working plate 5, and the mounting plates 5 extend along the vertical direction to form an upward-opening mounting seat.

[0038] The pressure cylinder 8 is arranged longitudinally between the upper working plate 4 and the lower working plate 5; the base of the pressure cylinder 8 is movably connected to the mounting base;

[0039] The upper end of the inclined pressure rod 9 is connected to the lower surface of the upper working plate 4, and the lower end is connected to the piston rod of the pressure cylinder 8; the extension and retraction of the piston rod of the pressure cylinder 8 drives the inclined pressure rod 9 to move in the longitudinal direction, so as to drive the upper working plate 4 to move relative to the lower working plate 5.

[0040] In practice, the pressure cylinder 8 drives the upper working plate 4 to move longitudinally relative to the lower working plate 5. The pressure cylinder 8 is used to provide the driving force for the movement of the upper working plate 4; the pressure cylinder 8 can also be other driving elements that can provide driving force.

[0041] As a specific embodiment, a load adjustment element is provided on the first working platform 300. The load adjustment element is connected to the pressurizing element and is used to adjust the pressure, fluctuation frequency and amplitude of the pressurizing element.

[0042] As a specific embodiment, a load regulating element is connected to the pressurizing cylinder 8. The load regulating element can be of various structures capable of adjusting the pressure, fluctuation frequency, and amplitude of the pressurizing cylinder 8. For example, the operating frequency of the pressurizing cylinder 8 can be adjusted via an electromagnetic proportional valve. By adjusting the pressure, fluctuation frequency, and amplitude of the pressurizing cylinder 8 through the load regulating element, the running simulation of line fault conditions can be achieved.

[0043] Specifically, the pressure and fluctuation amplitude of the pressurizing cylinder 8 are adjusted by regulating the opening degree of the electromagnetic proportional valve, and the fluctuation frequency of the pressurizing cylinder 8 is adjusted by regulating the switching frequency of the electromagnetic proportional valve. One implementation method is to control the opening degree of the electromagnetic proportional valve by adjusting the input current, with the change in current corresponding to the change frequency of the electromagnetic proportional valve.

[0044] As an embodiment of this application, the movable guide 6 includes a guide rail 601 and a guide slider 602;

[0045] The guide rail 601 is disposed on the upper surface of the lower working plate 5 and extends in the longitudinal direction; the guide slider 602 is disposed on the lower surface of the upper working plate 4 and slides in cooperation with the guide slider 602; the guide slider 602 moves relative to the guide rail 601.

[0046] As an embodiment of this application, the movable guide 6 may also adopt a structure that limits the direction of movement, such as a guide post and guide sleeve structure.

[0047] As an embodiment of this application, the power simulation component 100 includes a power transmission structure 10, a speed change structure 11, and a power spindle 12; the power transmission structure 10 is connected to the output end of the motor under test 1 and the input shaft of the speed change structure 11; the power spindle 12 is connected to the output shaft of the speed change structure 11, and the motor under test 1 drives the power spindle 12 to rotate sequentially via the power transmission structure 10 and the speed change structure 11.

[0048] As a specific embodiment, the power transmission structure 10 includes a transmission belt, a pulley installed at the output end of the motor under test 1, and a pulley connected to the input shaft of the speed change structure 11; the power output of the motor under test 1 is converted into the rotation of the input shaft of the speed change structure 11 at a preset speed through the transmission belt.

[0049] As a specific embodiment, the speed change structure 11 can be a gear transmission structure or other structures with speed change function; the output speed of the motor under test 1 is changed through the speed change structure 11 before being output. The speed change structure 11 can achieve a large span speed ratio output, so as to achieve a large span travel speed output.

[0050] As an embodiment of this application, the load simulation component 200 includes a load driver 13, a load transmission structure 14, and a load spindle 15; the load transmission structure 14 is connected to the output end of the load driver 13 and the load spindle 15; the power output by the load driver 13 drives the load spindle 15 to rotate in the forward or reverse direction after passing through the load transmission structure 14.

[0051] In a specific implementation, the load driver 13 is a drive motor, which can be a high-power servo motor or other drive structures. In a specific implementation, the load transmission structure 14 includes a transmission belt, a pulley mounted on the output end of the load driver 13, and a pulley connected to the load spindle 15.

[0052] As an embodiment of this application, the motor testing device further includes a testing element; the testing element is used to collect the speed information of the motor under test 1 under different simulated circuit conditions.

[0053] There are many types of test elements that can collect the speed information of the motor under test 1 under different simulated circuit conditions; for example, a speed sensor can be installed on the power spindle 12 or the axle simulation disk 2 to collect the speed information of the motor under test 1.

[0054] As an embodiment of this application, a motor testing method is provided, which uses the above-described motor testing device for testing. The testing method includes the following steps:

[0055] (i) The power simulation component 100 is controlled by the controller to simulate the operating conditions of the equipment on which the motor under test 1 is installed;

[0056] (ii) The load simulation component 200 is controlled by the controller to simulate the geometric state under preset line conditions;

[0057] (iii) The load simulation component 200 is moved to contact the power simulation component 100 by the controller, and a preset load is applied to the power simulation component 100 to simulate the line operating conditions under preset conditions.

[0058] As an embodiment of this application, the load simulation component 200 is moved to contact the power simulation component 100 by the controller, and a preset load is applied to the power simulation component 100 to simulate the line operating conditions under preset conditions; that is, step (two) includes the following steps:

[0059] (2.1) The controller controls the axle simulation disk 2 in the load simulation component 200 to move to contact the load application disk 3 and rotate in the same direction as the load application disk 3 to simulate the uphill line condition.

[0060] (2.2) The controller controls the axle simulation disk 2 in the load simulation component 200 to move to contact the load application disk 3 and rotate in the opposite direction to the load application disk 3 to simulate the downhill line condition.

[0061] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0064] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0065] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A testing device for a vehicle running motor, characterized in that, include: The power simulation component is connected to the output terminal of the motor under test; The load simulation component is located on one side of the power simulation component; The load simulation component can move relative to the power simulation component; when the load simulation component moves to a state of contact with the power simulation component, it is used to apply a preset load to the power simulation component. A first working platform is used to support a load simulation component; the load simulation component moves along a horizontal plane in a longitudinal direction; wherein, the longitudinal direction is the length direction of the first working platform, and the horizontal direction is the width direction of the first working platform, and the width direction of the first working platform is in the same direction as the extension direction of the output shaft of the motor under test; the first working platform includes: The upper and lower working plates are set vertically, and both the upper and lower working plates extend horizontally; the upper surface of the upper working plate is connected to the load simulation component. The movable guide is connected at its top to the lower surface of the upper work plate and at its bottom to the upper surface of the lower work plate; it is used to guide the relative movement between the upper and lower work plates. A pressurizing element, connected to the upper and lower working plates; spaced apart from the moving guide; used to drive the upper working plate to move longitudinally relative to the lower working plate, thereby causing the load simulation component to move relative to the power simulation component to achieve load application and separation; the pressurizing element includes: Two parallel mounting plates are installed at intervals on the lower surface of the lower working plate in the lateral direction, and the mounting plates extend in the vertical direction to form an upward-opening mounting base. A pressure cylinder is longitudinally positioned between the upper and lower working plates; the base of the pressure cylinder is movably connected to the mounting base. An inclined pressure rod is connected at its upper end to the lower surface of the upper working plate and at its lower end to the piston rod of the pressure cylinder; the piston rod of the pressure cylinder extends and retracts to drive the inclined pressure rod to move in the longitudinal direction, thereby driving the upper working plate to move relative to the lower working plate. The testing equipment for the vehicle's running motor also includes: The axle simulation disk is located at the end of the power simulation component away from the output end of the motor under test. The motor under test drives the axle simulation disk to rotate through the power simulation component. A load application disk is set on the load simulation component; the load simulation component drives the load application disk to rotate in the same or opposite direction relative to the axle simulation disk; when the load simulation component approaches and contacts the power simulation component, the load application disk is tangent to the axle simulation disk.

2. The testing apparatus for a vehicle running motor as described in claim 1, characterized in that, Also includes: A load adjustment element is connected to the pressurizing cylinder and is used to adjust the pressure, fluctuation frequency, and amplitude of the pressurizing cylinder.

3. The testing apparatus for a vehicle running motor as described in claim 1, characterized in that, The movable guide includes: The guide rail is located on the upper surface of the lower work plate and extends in the longitudinal direction; A guide slider is disposed on the lower surface of the upper working plate; it slides in conjunction with the guide slider; the guide slider moves relative to the guide rail.

4. The testing apparatus for a vehicle running motor as described in claim 1, characterized in that, The power simulation component includes a power transmission structure, a speed change structure, and a power spindle. The power transmission structure is connected to the output end of the motor under test and the input shaft of the speed change structure. The power spindle is connected to the output shaft of the speed change structure, and the motor under test drives the power spindle to rotate sequentially through the power transmission structure and the speed change structure.

5. The testing apparatus for a vehicle running motor as described in claim 1, characterized in that, The load simulation component includes: a load driver, a load transmission structure, and a load spindle; The load transmission structure is connected to the output end of the load driver and the load spindle. The power output from the load driver drives the load spindle to rotate in the forward or reverse direction after passing through the load transmission structure.

6. The testing apparatus for a vehicle running motor as described in claim 1, characterized in that, Also includes: The test element is used to collect the speed information of the motor under test under different simulated circuit conditions.

7. A test method for a vehicle running motor, characterized in that, The test apparatus for a vehicle running motor as described in any one of claims 1-6 includes: Control the operation of the power simulation component to simulate the operating conditions of the equipment with the motor under test installed; Control the operation of the load simulation component to simulate the geometric state under preset line conditions; The load simulation component is moved to contact the power simulation component, and a preset load is applied to the power simulation component to simulate the line operating conditions under preset conditions.

8. The test method for a vehicle running motor as described in claim 7, characterized in that, The load simulation component is moved to contact the power simulation component, and a preset load is applied to the power simulation component to simulate the line operating conditions under preset conditions, including: The axle simulation disk in the load simulation component is moved to contact the load application disk and rotates in the same direction as the load application disk to simulate uphill track conditions. The axle simulation disk in the load simulation component is moved to contact the load application disk and rotates in the opposite direction to simulate downhill track conditions.

Images