Hoist gear motor test platform

Abstract

A hoist gear motor test platform disclosed by the present invention comprises a test console, a lifting device, a rope arrangement device, a test bench, a test hoisting frame and a hoist, the output end of the test console is connected with a gear motor, the gear motor drives the lifting device, the lifting device is connected with the rope arrangement device through a steel wire rope, and the test bench is connected with the test hoisting frame. The test bed is connected with the rope arrangement device through a steel wire rope, and the test bed is connected with a test hoist frame and a hoist. The device can truly simulate the load of the gear motor, and is closer to the use condition. The cost is far lower than that of an independent hoist complete machine, all the devices are arranged on the ground, installation is easy, safety is higher, testing and data collection are convenient, all the devices are collected on the ground, and temperature changes of the gear motor can be monitored in real time.

Description

Technical Field

[0001] The present invention relates to the technical field related to reduction motors, and in particular to a test platform for a hoist reduction motor. Background Art

[0002] With the continuous development of the electric hoist industry, the industry's requirements for its quality are getting higher and higher. As the core component of the electric hoist, the lifting reduction motor has put forward higher requirements, so it is necessary to perform performance tests on it: vibration, noise, temperature rise, etc. There are currently two common testing methods: method one: place the reduction motor on the frame for a dual test; method two: place the reduction motor on the hoist machine for testing.

[0003] These two methods have the following problems: 1. The dual test cannot truly simulate the load conditions of the reduction motor installed on the hoist: (1) When the hoist is lifting weights, there is a section of the reducer output shaft that is the drum support end. The wire rope pulls the drum and the drum will generate a radial force in this section. However, the dual test does not have this radial force, which is inconsistent with the actual working conditions; (2) It cannot truly simulate the impact inertia generated by the load during braking.

[0004] 2. Testing on the whole hoist requires a separate hoist test, which results in high testing costs. It is also difficult to install the hoist on the test crane after the reduction motor is installed on the hoist. It requires a crane and at least 2 to 3 professional installers with climbing certificates to install it on the crane beam, and the installation time is long. At the same time, noise, vibration, temperature rise and other data need to be collected during the test, and frequent measurements on the climbing crane are required, which is high-altitude work and poses a great safety hazard.

[0005] 3. To test the reduction motor of hoist of other tonnage, it is also necessary to configure hoists of other tonnage, resulting in higher testing costs. Summary of the invention

[0006] The purpose of the present invention is to provide a test platform for a hoist reduction motor to solve the technical problems in the prior art that the load condition of the reduction motor installed on the hoist cannot be truly simulated and the test cost is high.

[0007] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a hoist reduction motor test platform, comprising a test console, a lifting device, a rope-arranging device, a test bench, a test weight frame and a weight. The output end of the test console is connected to a reduction motor, and the reduction motor drives the lifting device. The lifting device and the rope-arranging device are connected by a steel wire rope, and the test bench and the rope-arranging device are connected by a steel wire rope. The test bench is connected to a test weight frame and a weight.

[0008] Furthermore, the test console has an electric control element table inside, and a PLC controller and a main control switch are fixedly connected to the top of the electric control element table; a control panel and a touch display screen are fixedly connected to the front of the test console, the power interface of the PLC controller is electrically connected to the external power supply through the main control switch, the signal input end of the PLC controller is electrically connected to the control panel, the output control end of the PLC controller is electrically connected to the low-voltage electrical components, and the low-voltage electrical components are electrically connected to the motor; the communication port of the PLC controller is electrically connected to the touch display screen and the power A / D converter, and the sensor power A / D converter is electrically connected to the motor main circuit.

[0009] Furthermore, the lifting device includes a driven end flange assembly weldment, a driving end flange assembly weldment, a reduction motor, a driving end support ring, a rope pressure plate, a drum assembly weldment, a connecting rod, and a lifting limit device. The driving end support ring and the drum assembly weldment are connected by bolts and are a replaceable structure. Multiple groups of holes are drilled on the driving end flange plate to meet the installation of reduction motors of different tonnages.

[0010] Furthermore, the lifting device is installed on a lifting device mounting frame, and the lifting device mounting frame is welded by I-beams and channel steels, and a pressure plate can be used to fix the lifting device on the mounting frame.

[0011] Furthermore, the rope arrangement device is provided with a movable pulley, which is mounted on a pulley shaft, and the pulley shaft is fixed on a support frame. When lifting a heavy object, the movable pulley follows the axial arrangement of the wire rope on the drum and moves axially on the pulley shaft to prevent the rope from being tangled.

[0012] Furthermore, the test bench includes a test frame, a fixed pulley 1, a fixed pulley 2, a fixed pulley block, a hook, and a rope end fixing device. The hook is connected to the test weight frame and the weight, and the fixed pulley 1 is connected to the rope arrangement device through a wire rope. By replacing the fixed pulley block and the hook and the rope winding method, the magnification can be adjusted to meet the test of more tonnage hoist reduction motors.

[0013] Furthermore, it also includes protective fences and cables.

[0014] Based on the above technical solution, the embodiments of the present invention can at least produce the following technical effects: (1) The hoist reduction motor test platform provided by the present invention has different output mounting holes and output spline sizes for hoist reduction motors of different tonnages. The reel diameters of similar tonnages can be unified, and the mounting holes can be drilled on the active end flange. Only the reduction motor, active end support ring and connecting rod installation position need to be replaced to meet the test of hoist reduction motors of similar tonnage, which not only shortens the installation time but also saves the test cost.

[0015] (2) The hoist reduction motor test platform provided by the present invention can truly simulate the load of the reduction motor and is closer to the operating conditions.

[0016] (3) The cost of the hoist reduction motor test platform provided by the present invention is much lower than the cost of configuring a hoist alone. All devices are on the ground, which is simple to install and safer. The test data collection is convenient and all data is collected on the ground. In addition, the temperature change of the reduction motor can be monitored in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 1. It is a top view of a test platform for a hoist reduction motor according to an embodiment of the present invention; Figure 3 is a schematic diagram of a lifting device according to an embodiment of the present invention; Figure 4 It is a structural diagram of a lifting device according to an embodiment of the present invention; Figure 5 It is a partial enlarged schematic diagram of the connection between the active end support ring and the winding drum assembly welding part in an embodiment of the present invention; Figure 6 Schematic diagram of the active end flange mounting plate of an embodiment of the present invention; Figure 7 Schematic diagram of a lifting device mounting frame according to an embodiment of the present invention; Figure 8 2 is a schematic diagram of a rope arrangement device according to an embodiment of the present invention; Fig. 9 This is a structural diagram of a rope arrangement device according to an embodiment of the present invention; Fig.10 This is a diagram showing the arrangement of temperature measurement points of a motor according to an embodiment of the present invention; Fig.11 Schematic diagram of the installation of the reducer oil temperature detection sensor according to an embodiment of the present invention; Fig.12 It is a temperature monitoring principle diagram of an embodiment of the present invention; In the figure: 1. Test control console; 2. Lifting device; 2-1. Driven end flange assembly weldment; 2-2. Active end flange assembly weldment; 2-3. Reducer motor; 2-4. Active end support ring; 2-5. Rope pressure plate; 2-6. Drum assembly weldment; 2-7. Connecting rod; 2-8. Lifting limit device; 2-9. Temperature sensor; 2-10. Pressure sensor; 3. Lifting device mounting frame; 4. Wire rope; 5. Rope arrangement device; 5-1. Movable pulley; 5-2. Pulley shaft; 5-3. Support frame; 6. Test bench; 6-1. Test frame; 6-2. Fixed pulley one; 6-3. Fixed pulley two; 6-4. Fixed pulley group; 6-5. Hook; 6-6. Rope end fixing device; 7. Test lifting frame and lifting weight; 8. Cable; 9. Protective fence. DETAILED DESCRIPTION

[0019] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0021] like Figure 1-Figure 12 As shown, the present invention provides a hoist reduction motor test platform, including a test console 1, a lifting device 2, a rope arrangement device 5, a test bench 6 and a test weight frame and a weight 7, the output end of the test console 1 is connected with a reduction motor, the reduction motor drives the lifting device 2, the lifting device 2 and the rope arrangement device 5 are connected by a wire rope 4, the test bench 6 and the rope arrangement device 5 are connected by a wire rope 4, and the test bench 6 is connected with a test weight frame and a weight 7.

[0022] In this embodiment, the steel wire rope adopts WSH826SC special steel wire rope with a tensile strength of 2160N / mm 2 .

[0023] In this embodiment, the test console 1 has an electric control element table, and a PLC controller and a main control switch are fixed on the electric control element table; a control panel and a touch screen are fixed on the front of the test console 1, the power interface of the PLC controller is electrically connected to the external power supply through the main control switch, the signal input end of the PLC controller is electrically connected to the control panel, the output control end of the PLC controller is electrically connected to the low-voltage electrical components, and the low-voltage electrical components are electrically connected to the motor; the communication port of the PLC controller is electrically connected to the touch screen and the power A / D converter, and the sensor power A / D converter is electrically connected to the motor main circuit. The model of the PLC controller is HC10-M3232R-C3.

[0024] In this embodiment, the lifting device 2 includes a driven end flange assembly weldment 2-1, an active end flange assembly weldment 2-2, a reduction motor 2-3, an active end support ring 2-4, a rope pressure plate 2-5, a drum assembly weldment 2-6, a connecting rod 2-7, and a lifting limit device 2-8. The active end support ring 2-4 is connected to the drum assembly weldment 2-6 by bolts.

[0025] In this embodiment, the lifting device 2 is installed on a lifting device mounting frame 3, and the lifting device mounting frame 3 is formed by welding an I-beam and a channel steel.

[0026] In this embodiment, the rope arrangement device 5 is provided with a movable pulley 5-1, and the movable pulley is installed on a pulley shaft 5-2, and the pulley shaft is fixed on a support frame 5-3.

[0027] In this embodiment, the test bench 6 includes a test frame 6-1, a fixed pulley 1 6-2, a fixed pulley 2 6-3, a fixed pulley group 6-4, a hook 6-5, and a rope end fixing device 6-6. The hook is connected to the test weight frame and the weight 7, and the fixed pulley 1 6-2 is connected to the rope arrangement device 5 through a wire rope 4.

[0028] In this embodiment, a protective fence 9 and a cable 8 are also included.

[0029] The test hoisting frame is replaced with different hoisting weights to adapt to the test of the tonnage hoist reduction motor.

[0030] Since the internal conditions of the reduction motor cannot be directly observed, the temperature and pressure changes inside the reduction motor can be monitored in real time to observe whether there are any abnormalities. The temperature and pressure data monitoring and collection methods are as follows: 1. The motor part of the reduction motor Figure 7As shown, 8 Pt100 platinum thermal resistor temperature sensors are set inside and outside the motor, and connected to the KLB-13X temperature inspection instrument to monitor the temperature values ​​of 8 different points of the motor in real time. In addition, a thermal sensor element (thermal switch) is set inside the motor and connected to the electronic control system as motor protection.

[0031] 2. For the reducer part of the reduction motor, a temperature sensor is installed at the oil filling hole just above the reducer. The position is as follows: Figure 4 As shown in 2-9, a temperature inspection instrument is connected to monitor the oil temperature inside the reducer in real time. Similarly, a pressure sensor (model YC-2088) is set on the side of the reducer, located as shown in Figure 4 As shown in Figure 2-10, a multi-circuit pressure measurement, display and control instrument (model NHR-5710A-27-0 / 1 / D1 / 1P-4) is connected to monitor the internal pressure of the reducer in real time.

[0032] 3. The above temperature sensor is electrically connected to the display screen through an A / D converter. The internal temperature condition of the reduction motor can be understood through the display screen. The basic principle is as follows: Fig.12 shown.

[0033] The noise of the reduction motor is detected by a decibel meter.

[0034] The vibration of the reduction motor is tested by a vibration meter.

[0035] The structures, functions and connection forms disclosed in this article can be implemented in other ways. For example, the embodiments described above are only exemplary, for example, multiple components can be combined or integrated into another component; in addition, each functional component in each embodiment of this article can be integrated into one functional component, or each functional component can exist physically separately, or two or more functional components can be integrated into one functional component.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A hoist reduction motor test platform, characterized in that: The test bench (1) comprises a test control console (1), a lifting device (2), a rope arrangement device (5), a test bench (6), a test weight frame and a weight (7), wherein the output end of the test control console (1) is connected to a reduction motor, the reduction motor drives the lifting device (2), the lifting device (2) and the rope arrangement device (5) are connected via a steel wire rope (4), the test bench (6) and the rope arrangement device (5) are connected via a steel wire rope (4), and the test weight frame and the weight (7) are connected to the test bench (6).

2. The hoist reduction motor test platform according to claim 1 is characterized in that: The test console (1) has an electric control element table, and a PLC controller and a main control switch are fixedly connected to the upper part of the electric control element table; a control panel and a touch screen are fixedly connected to the front of the test console (1); a power interface of the PLC controller is electrically connected to an external power supply through the main control switch, a signal input end of the PLC controller is electrically connected to the control panel, an output control end of the PLC controller is electrically connected to a low-voltage electrical element, and the low-voltage electrical element is electrically connected to a motor; a communication port of the PLC controller is electrically connected to the touch screen and an electrical quantity A / D converter, and the sensor electrical quantity A / D converter is electrically connected to a main circuit of the motor.

3. The hoist reduction motor test platform according to claim 1 is characterized in that: The lifting device (2) comprises a driven end flange assembly weldment (2-1), a driving end flange assembly weldment (2-2), a reduction motor (2-3), an active end support ring (2-4), a rope pressure plate (2-5), a drum assembly weldment (2-6), a connecting rod (2-7), and a lifting limit device (2-8); the active end support ring (2-4) and the drum assembly weldment (2-6) are connected by bolts.

4. The hoist reduction motor test platform according to claim 1, characterized in that: The lifting device (2) is mounted on a lifting device mounting frame (3), and the lifting device mounting frame (3) is formed by welding an I-beam and a channel steel.

5. The hoist reduction motor test platform according to claim 1, characterized in that: The rope arrangement device (5) is provided with a movable pulley (5-1), the movable pulley is mounted on a pulley shaft (5-2), and the pulley shaft is fixed on a support frame (5-3).

6. The hoist reduction motor test platform according to claim 1, characterized in that: The test bench (6) comprises a test frame (6-1), a fixed pulley 1 (6-2), a fixed pulley 2 (6-3), a fixed pulley block (6-4), a hook (6-5), and a rope end fixing device (6-6); the hook is connected to a test weight frame and a weight (7); and the fixed pulley 1 (6-2) is connected to a rope arrangement device (5) via a steel wire rope (4).

7. The hoist reduction motor test platform according to claim 1, characterized in that: It also includes a protective fence (9) and a cable (8).

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