Fault simulation loading device for winch speed reducer of crane

Abstract

The invention provides a crane winch speed reducer fault simulation loading device, and relates to the technical field of mechanical test equipment. The testing winch is arranged on one side of the base, and the testing winch comprises a main body, a speed reducer installed on the main body and a sensor assembly arranged in the main body and used for collecting data of the speed reducer; the winding roller is arranged on the other side of the base, and a movable sliding table is arranged at the bottom of the winding roller; the synchronous transmission mechanism is in transmission connection with the testing winch and the winding roller; the constant force loading mechanism comprises a hand jack and is arranged between the movable sliding table and the test winch; the two groups of steel wire rope winding guide mechanisms are respectively arranged on the testing winch and the winding roller; and the steel wire rope is wound on the steel wire rope winding guide mechanism. According to the invention, rapid and convenient analog loading for testing the winch planetary reducer is realized, and data sampling is more effective.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical testing equipment, in particular to a crane winch reducer fault simulation loading device. Background Art

[0002] A winch, also known as a hoist, is a small and light lifting equipment that uses a drum to wrap a wire rope or chain to lift or pull heavy objects. The winch can be used alone or as a component of machinery such as lifting, road construction and mine hoisting. It is widely used in material lifting or towing in construction, ocean, water conservancy, forestry, mining, docks, etc. due to its simple operation, large rope capacity and easy relocation.

[0003] The main structure of the winch usually includes a frame, a drum fixed on the frame, a wire rope wound on the drum, a hydraulic motor for powering the drum, and a brake assembly installed on the drum. When diagnosing and analyzing the bearing and gear faults of the crane winch reducer, a large amount of fault data is required to verify the effectiveness and accuracy of the algorithm.

[0004] At present, there are few fault samples of crane winch reducers and no fault database has been established, resulting in a serious lack of effective data for fault diagnosis and analysis. It is urgent to develop a winch reducer simulation loading device to equivalent the actual working state of the crane, and quickly obtain a large amount of fault source data through artificial fault simulation of gear bearings.

[0005] However, the existing winch simulation loading methods include fixed weight lifting method, hydraulic winding and other methods. The test equipment is expensive and occupies a large area. It is not convenient for multiple disassembly and assembly tests of the reducer during the fault data collection process, which affects the test efficiency. At the same time, the winch reducer is located inside the drum and rotates with the drum, while the sensor is generally arranged on the reducer flange connection surface on the side of the drum, which is far away from the faulty gear and bearing, affecting the validity of the sampling data.

[0006] Therefore, there is an urgent need for a crane winch reducer fault simulation loading device to solve the above technical problems. Summary of the invention

[0007] The purpose of the present invention is to provide a crane winch reducer fault simulation loading device to achieve fast and convenient simulation loading for testing the winch planetary reducer. The sensor is closer to the faulty bearing and gear parts of the planetary reducer, solving the signal transmission problem of the rotating parts. The sampling data is more effective, the test device has a compact structure and low manufacturing cost.

[0008] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] The present invention provides a crane winch reducer fault simulation loading device, comprising:

[0011] Base;

[0012] A test winch is arranged at one side of the base, and the test winch comprises a main body, a reducer installed on the main body, and a sensor component arranged inside the main body for collecting reducer data;

[0013] A winding drum is arranged on the other side of the base, and a movable slide is arranged at the bottom;

[0014] A synchronous transmission mechanism, which transmits and connects the test winch and the winding drum;

[0015] A constant force loading mechanism, including a hand-cranked jack, is disposed between the movable slide and the test winch;

[0016] The wire rope winding guide mechanism includes two groups, which are respectively arranged on the test winch and the winding drum;

[0017] The steel wire rope is wound around the steel wire rope winding guide mechanism.

[0018] Preferably, the test winch further comprises a hydraulic motor, a winch gear and a conductive slip ring, wherein:

[0019] The hydraulic motor is arranged at the first end of the main body and connected to the reducer;

[0020] The winch gear is disposed at the second end of the body;

[0021] The conductive slip ring is installed on the second end of the main body through a slip ring support.

[0022] Preferably, the sensor assembly includes at least an acceleration sensor, a temperature and vibration integrated sensor, and a rotation speed sensor, wherein:

[0023] The acceleration sensor is arranged inside the main body and mounted on the surface of the reducer;

[0024] The temperature and vibration integrated sensor is arranged inside the main body, and the temperature and vibration integrated sensor is installed in the axial and radial directions of the reducer, and the temperature and vibration integrated sensor is arranged close to the reducer bearing and gear;

[0025] The rotation speed sensor is mounted on the second end of the main body.

[0026] Preferably, the wire rope winding guide mechanism comprises a first support seat, a screw rod mounted on the first support seat, and a guide frame mounted on the screw rod, wherein:

[0027] The first support seat is arranged on the test winch and the winding drum in a direction perpendicular to the winding of the wire rope, and the first support seat is arranged on one side of the test winch and the winding drum close to each other;

[0028] The guide frame is connected to the screw rod through a nut, the guide frame is arranged vertically to the screw rod, and a guide roller is arranged on the guide frame.

[0029] Preferably, the wire rope winding guide mechanism further comprises a second support seat arranged parallel to the first support seat, wherein:

[0030] The second support seat is provided with a guide light axis, and the guide frame is connected to the guide light axis.

[0031] Preferably, the synchronous transmission mechanism comprises a gear assembly and a chain transmission-connected to the gear assembly, wherein:

[0032] The gear assembly at least includes a drum gear arranged on the winding drum, and a tensioning wheel assembly arranged between the winch gear and the drum gear. A wire winding shaft gear is arranged between the tensioning wheel assembly and the drum gear, and between the tensioning wheel assembly and the winch gear.

[0033] Preferably, the tensioning wheel assembly comprises a tensioning gear and a tensioning spring arranged on one side of the tensioning gear.

[0034] Preferably, the constant force loading mechanism further includes an elastic pad, and the elastic pad is arranged at the bottom of the jack.

[0035] Preferably, the constant force loading mechanism also includes a pressure sensor.

[0036] Preferably, it also includes a control device and a data acquisition card, wherein:

[0037] The sensor assembly, the pressure sensor, the hydraulic motor, and the conductive slip ring are all connected to the data acquisition card signal;

[0038] The control device is signal-connected to the data acquisition card.

[0039] The crane winch reducer fault simulation loading device provided by the present invention comprises a base, a test winch arranged on one side of the base, a winding drum arranged on the other side of the base, a synchronous transmission mechanism for connecting the test winch and the winding drum, a wire rope winding guide mechanism respectively arranged on the test winch and the winding drum, a wire rope wound on the wire rope winding guide mechanism, and a constant force loading mechanism. By setting a sensor assembly inside the test winch, sensor configuration and signal transmission are realized, and the sampling sensor is closer to the planetary reducer gear and bearing fault source, thereby improving the validity of the sampled original data. The fast and convenient simulation loading of the test winch planetary reducer is realized, and the wire rope is synchronously rotated and wound, providing a low-cost solution for fault simulation tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 these drawings without paying creative work.

[0041] Figure 1 It is a structural schematic diagram of an embodiment of a crane winch reducer fault simulation loading device of the present invention;

[0042] Figure 2 It is a schematic cross-sectional structure diagram of a test winch in a crane winch reducer fault simulation loading device of the present invention;

[0043] Figure 3 yes Figure 1 Schematic diagram of the main structure;

[0044] Figure 4 It is a structural schematic diagram of a wire winding guide mechanism in a crane winch reducer fault simulation loading device of the present invention;

[0045] Figure 5 It is a control principle diagram of the crane winch reducer fault simulation loading device of the present invention.

[0046] In the figure: 1. base;

[0047] 2. Test winch; 21. Main body; 22. Speed ​​reducer; 23. Sensor assembly; 231. Acceleration sensor; 232. Temperature and vibration integrated sensor; 233. Speed ​​sensor; 24. Hydraulic motor; 25. Winch gear; 26. Conductive slip ring; 27. Slip ring support;

[0048] 3. Winding roller; 4. Moving slide;

[0049] 5. Synchronous transmission mechanism; 51. Gear assembly; 511. Drum gear; 512. Tensioning wheel assembly; 5121. Tensioning gear; 5122. Tensioning spring; 513. Wire winding shaft gear; 52. Chain;

[0050] 6. Constant force loading mechanism; 61. Jack; 62. Pressure sensor;

[0051] 7. Steel wire rope;

[0052] 8. Wire rope winding guide mechanism; 81. First support seat; 82. Screw rod; 83. Guide frame; 830. Guide roller; 84. Nut; 85. Second support seat; 86. Guide optical axis;

[0053] 9. Control device; 10. Data acquisition card; 101. Transmitter; 102. Hydraulic oil tank; 103. Control push rod. DETAILED DESCRIPTION

[0054] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0055] In the description of the present invention, it is to be understood that the terms “center”, “lateral”, “length”, “width”, “height”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “side”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0056] In the description of the present invention, it is also necessary to explain that, 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0057] Figure 1 Schematic diagram of the structure of this embodiment. Figure 1As shown, this embodiment provides a crane winch reducer fault simulation loading device, including a base 1, a test winch 2, a winding drum 3, a synchronous transmission mechanism 5, a constant force loading mechanism 6, a wire rope 7, and a wire rope winding guide mechanism 8.

[0058] in, Figure 2 Schematic diagram of the cross-sectional structure of the test winch in this embodiment. Figure 2 As shown, the test winch 2 is arranged on one side of the base 1, and the test winch 2 includes a main body 21, a reducer 22 installed on the main body 21, and a sensor component 23 arranged inside the main body 21 for collecting reducer data. The reducer 22 in this embodiment adopts a planetary reducer, and is equipped with planetary reducer gears (broken teeth, wear, cracks, pitting) and bearings (scratches, wear) with various structural damages.

[0059] Specifically, the test winch 2 in this embodiment further includes a hydraulic motor 24 , a winch gear 25 and a conductive slip ring 26 .

[0060] Among them, the hydraulic motor 24 is arranged at the first end of the main body 21, connected to the reducer 22, and realizes the synchronous retraction and release and uniform winding of the wire rope in forward and reverse rotation through the transmission mechanism; the winch gear 25 is arranged at the second end of the main body 21; the conductive slip ring 26 is installed on the second end of the main body 21 through the slip ring support, and the conductive slip ring 26 is fixed to the side panel of the main body 21 of the test winch 2 through the slip ring support 27 to ensure the fixation of the outlet end.

[0061] Optionally, the sensor assembly 23 in this embodiment includes at least an acceleration sensor 231 , a temperature and vibration integrated sensor 232 , and a rotation speed sensor 233 .

[0062] Among them, the acceleration sensor 231 is arranged inside the main body 21 and installed on the surface of the reducer 22; the temperature and vibration integrated sensor 232 is arranged inside the main body 21, and the temperature and vibration integrated sensor 232 is installed in the axial and radial directions of the reducer 22, and the temperature and vibration integrated sensor 232 is arranged close to the bearings and gears of the reducer 22; the speed sensor 233 is installed at the second end of the main body 21.

[0063] By arranging axial and radial integrated temperature and vibration sensors 232 on the outside of the planetary reducer inside the test winch 2, and positioning them closer to the faulty bearing and gear parts of the planetary reducer, the original signal closer to the fault source can be obtained, and fast and convenient simulation loading of the test winch planetary reducer can be achieved. The sampling data is more effective, and the entire test device has a compact structure and low manufacturing cost.

[0064] The winding drum 3 in this embodiment is arranged on the other side of the base 1 , and a movable slide 4 is arranged at the bottom; the synchronous transmission mechanism 5 transmits and connects the test winch 2 and the winding drum 3 .

[0065] in, Figure 3 yes Figure 1 The main structure diagram of Figure 3 As shown, the synchronous transmission mechanism 5 includes a gear assembly 51 and a chain 52 drivingly connected to the gear assembly 51 .

[0066] Specifically, the gear assembly 51 includes at least a drum gear 511 arranged on the winding drum 3, and a tensioning wheel assembly 512 arranged between the winch gear 25 and the drum gear 511, and a wire winding shaft gear 513 is arranged between the tensioning wheel assembly 512 and the drum gear 511, and between the tensioning wheel assembly 512 and the winch gear 25.

[0067] The tensioning wheel assembly 512 in this embodiment includes a tensioning gear 5121 and a tensioning spring 5122 arranged on one side of the tensioning gear 5121 .

[0068] like Figure 1 As shown, the constant force loading mechanism 6 in this embodiment includes a hand jack 61 and a pressure sensor 62, and a closed-loop thrust is formed by the hand jack 61 and the pressure sensor 62 to ensure a constant tensile load on the wire rope 7 between the test winch 2 and the winding drum 3.

[0069] In this embodiment, the hand jack 61 is laterally placed between the movable slide 4 and the test winch 2, and is used to open the winding drum 3 and tighten the wire rope 7 to reach a preset lifting load.

[0070] Figure 4 Schematic diagram of the structure of the wire winding guide mechanism in this embodiment. Figure 4 As shown, the wire rope winding guide mechanism 8 includes two groups, which are respectively arranged on the test winch 2 and the winding drum 3, and the wire rope 7 is wound around the wire rope winding guide mechanism 8. By configuring a group of wire rope winding guide mechanisms 8 on the test winch 2 and the winding drum 3, it is ensured that the wire rope 7 is evenly wound and released during the winding process.

[0071] Specifically, the wire rope winding guide mechanism 8 in this embodiment includes a first support seat 81 , a screw rod 82 installed on the first support seat 81 , and a guide frame 83 installed on the screw rod 82 .

[0072] The first support seat 81 is arranged on the test winch 2 and the winding drum 3 along a direction perpendicular to the winding of the wire rope 7 , and the first support seat 81 is arranged on one side of the test winch 2 and the winding drum 3 close to each other.

[0073] The guide frame 83 in this embodiment is connected to the screw rod 82 through a nut 84. The guide frame 83 is arranged vertically to the screw rod 82. A guide roller 830 is provided on the guide frame 83. The guide roller 830 includes two groups, which are arranged up and down. The wire rope 7 passes through the middle of the upper and lower guide rollers.

[0074] During the test, the speed ratio of the wire winding shaft gear 513 and the drum gear 511 is proportional to the lead of the screw 82. When the test winch 2 rotates one circle, the guide frame 83 moves horizontally to the left and right to ensure that the wire rope 7 is tightly wound.

[0075] As an optional implementation, the wire rope winding guide mechanism 8 further includes a second support seat 85 arranged parallel to the first support seat 81 .

[0076] The second support seat 85 is provided with a guide light axis 86, and the guide frame 83 is connected to the guide light axis 86. Specifically, the guide light axis 86 in this embodiment is arranged parallel to the screw rod 82, so that the guide frame 83 has better stability during operation, ensuring the smooth progress of the test.

[0077] As an optional implementation, the constant force loading mechanism 6 further includes an elastic pad, which is arranged at the bottom of the jack to reduce vibration and load fluctuation during the wire rope retraction and release process.

[0078] As an optional implementation, Figure 5 It is the working principle diagram of this embodiment, such as Figure 5 As shown, it also includes a control device 9 and a data acquisition card 10.

[0079] Among them, the sensor assembly 23, the pressure sensor 62, the hydraulic motor 24, and the conductive slip ring 26 are all connected to the data acquisition card 10 signal, that is, the collection signal inside the test winch 2 is transmitted to the data acquisition card 10 through the conductive slip ring 26; the control device 9 is connected to the data acquisition card 10 signal.

[0080] Through the sensor configuration and signal transmission inside the test winch 2, the sampling sensor is closer to the planetary reducer gear and bearing fault source, which improves the validity of the sampled raw data. The test winch planetary reducer is quickly and conveniently simulated to load, and the wire rope is synchronously rotated, wound and wound, providing a low-cost solution for fault simulation tests.

[0081] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A crane winch reducer fault simulation loading device, characterized in that: include: Base; A test winch is arranged at one side of the base, and the test winch comprises a main body, a reducer installed on the main body, and a sensor component arranged inside the main body for collecting reducer data; A winding drum is arranged on the other side of the base, and a movable slide is arranged at the bottom; A synchronous transmission mechanism, which transmits and connects the test winch and the winding drum; A constant force loading mechanism, including a hand-cranked jack, is disposed between the movable slide and the test winch; The wire rope winding guide mechanism includes two groups, which are respectively arranged on the test winch and the winding drum; The steel wire rope is wound around the steel wire rope winding guide mechanism.

2. The crane winch reducer fault simulation loading device according to claim 1 is characterized in that: The test winch also includes a hydraulic motor, a winch gear and a conductive slip ring, wherein: The hydraulic motor is arranged at the first end of the main body and connected to the reducer; The winch gear is disposed at the second end of the body; The conductive slip ring is installed on the second end of the main body through a slip ring support.

3. The crane winch reducer fault simulation loading device according to claim 2 is characterized in that: The sensor assembly at least includes an acceleration sensor, a temperature and vibration integrated sensor, and a rotation speed sensor, wherein: The acceleration sensor is arranged inside the main body and mounted on the surface of the reducer; The temperature and vibration integrated sensor is arranged inside the main body, and the temperature and vibration integrated sensor is installed in the axial and radial directions of the reducer, and the temperature and vibration integrated sensor is arranged close to the reducer bearing and gear; The rotation speed sensor is mounted on the second end of the main body.

4. The crane winch reducer fault simulation loading device according to any one of claims 1 to 3, characterized in that: The wire rope winding guide mechanism comprises a first support seat, a screw rod mounted on the first support seat, and a guide frame mounted on the screw rod, wherein: The first support seat is arranged on the test winch and the winding drum in a direction perpendicular to the winding of the wire rope, and the first support seat is arranged on one side of the test winch and the winding drum close to each other; The guide frame is connected to the screw rod through a nut, the guide frame is arranged vertically to the screw rod, and a guide roller is arranged on the guide frame.

5. The crane winch reducer fault simulation loading device according to claim 4 is characterized in that: The wire rope winding guide mechanism further includes a second support seat arranged parallel to the first support seat, wherein: The second support seat is provided with a guide light axis, and the guide frame is connected to the guide light axis.

6. The crane winch reducer fault simulation loading device according to claim 2 or 3, characterized in that: The synchronous transmission mechanism comprises a gear assembly and a chain transmission-connected with the gear assembly, wherein: The gear assembly at least includes a drum gear arranged on the winding drum, and a tensioning wheel assembly arranged between the winch gear and the drum gear. A wire winding shaft gear is arranged between the tensioning wheel assembly and the drum gear, and between the tensioning wheel assembly and the winch gear.

7. The crane winch reducer fault simulation loading device according to claim 6 is characterized in that: The tension wheel assembly includes a tension gear and a tension spring arranged on one side of the tension gear.

8. The crane winch reducer fault simulation loading device according to any one of claims 1 to 3, characterized in that: The constant force loading mechanism also includes an elastic pad, which is arranged at the bottom of the jack.

9. The crane winch reducer fault simulation loading device according to claim 2 or 3, characterized in that: The constant force loading mechanism also includes a pressure sensor.

10. The crane winch reducer fault simulation loading device according to claim 9, characterized in that: It also includes a control device and a data acquisition card, wherein: The sensor assembly, the pressure sensor, the hydraulic motor, and the conductive slip ring are all connected to the data acquisition card signal; The control device is signal-connected to the data acquisition card.

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