Novel drive axle running-in test bench

Abstract

The utility model discloses a novel drive axle running-in test bench, which is characterized in that a V-shaped supporting table and a transition disc tool table are mounted on a rack, a drive axle to be tested is arranged on the V-shaped supporting table and the transition disc tool table, a drive axle driving device is arranged on the outer side of the transition disc tool table, and a control cabinet is arranged on one side of the drive axle driving device; protective covers are arranged on the outer sides of the two ends of the drive axle to be tested, a V-shaped supporting table left-right adjusting mechanism is arranged between the rack and the V-shaped supporting table, and a transition disc tool table up-down adjusting mechanism and a transition disc tool table horizontal adjusting mechanism are arranged between the rack and the transition disc tool table. The positions of the V-shaped supporting table, the transition disc tool table and the drive axle driving device can be adjusted, and drive axles of different models can be rapidly adapted; the whole main shaft workbench can move up and down and back and forth, and the main shaft is flexibly connected and can be flexibly in transmission connection with the drive axle; the protective cover comprises a liftable movable part and is used in cooperation with the safety grating, and safety protection is comprehensive and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of drive axle test equipment, in particular to a novel drive axle running-in test bench. Background Art

[0002] As the factory's requirements for product quality are becoming more and more stringent, the original equipment of the axle factory can only be run-in and it is difficult to judge whether the internal parts are damaged. There are the following problems: the equipment drive connection method is a universal joint connection, which makes a loud noise during high-speed test runs, and the maximum speed can only reach about 1200 rpm, which cannot simulate the actual working conditions; the equipment safety protection is not in place, which poses a risk to personnel protection; there are many types of drive axles, and it is troublesome to change and adjust each time; the equipment does not have a special gear oil filtration system and there are many impurities. Utility Model Content

[0003] The purpose of the utility model is to provide a novel drive axle running-in test bench to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of drive axle running-in test bench, which includes a frame, a V-shaped support table is installed on the workbench of the frame in parallel on the left and right sides, a transition plate tooling table is installed on the side of the workbench of the frame perpendicular to the V-shaped support table, a drive axle to be tested is arranged on the V-shaped support table and the transition plate tooling table, a drive axle driving device is arranged on the outer side of the transition plate tooling table, and a control cabinet is arranged on one side of the drive axle driving device;

[0005] Protective covers are arranged on the outer sides of both ends of the drive axle to be tested, a V-shaped support left and right adjustment mechanism is arranged between the frame and the V-shaped support, and a transition plate tooling table up and down adjustment mechanism and a transition plate tooling table horizontal adjustment mechanism are arranged between the frame and the transition plate tooling table.

[0006] Preferably, the drive axle driving device includes a spindle worktable, which can be adjusted in up and down, front and back positions. A spindle drive motor is fixedly mounted on the spindle worktable, and the output shaft of the spindle drive motor is connected to a flexible spindle, and the other end of the flexible spindle can be transmission-connected to the drive axle to be tested.

[0007] Preferably, a torque sensor is connected between the output shaft of the spindle drive motor and the flexible spindle.

[0008] Preferably, the protective cover comprises a fixed protective cover fixedly mounted on the frame, a movable protective cover movably arranged on the fixed protective cover, a movable protective cover lifting device and a guide column connected to the movable protective cover, and the other ends of the movable protective cover lifting device and the guide column are fixedly mounted on the frame.

[0009] Preferably, the movable protective cover lifting device is a telescopic oil cylinder, a pneumatic cylinder or an electric telescopic rod.

[0010] Preferably, the left-right adjustment mechanism of the V-shaped support platform and the horizontal adjustment mechanism of the transition plate tooling platform are both servo motor plus screw nut structures, and the up-and-down adjustment mechanism of the transition plate tooling platform is a servo motor driven worm gear lifting mechanism plus a guide column structure.

[0011] Preferably, an oil receiving box is provided below the middle part of the drive axle to be tested, and wheel hub oil return grooves are provided below both ends of the drive axle to be tested, the oil receiving box and the wheel hub oil return groove are fixedly mounted on the frame, an oil tank is fixedly mounted inside the frame, the oil tank is connected to the oil receiving box and the wheel hub oil return groove through an oil pipe, and a filter is installed on the oil tank.

[0012] Beneficial effects: Compared with the prior art, the beneficial effects of the utility model are:

[0013] The spindle drive motor is a variable frequency motor with a speed of 0-3000r / min stepless speed regulation. The spindle worktable can move up and down and forward and backward as a whole. The docking spindle is a flexible connection, which can achieve normal docking and operation when the driving spindle and the workpiece are eccentric, without affecting data collection, ensuring that the collected data is correct, stable and reliable;

[0014] The equipment is equipped with wheel hub protection covers on both sides, including fixed and movable protection covers. The movable protection covers can be raised and lowered autonomously. Together with the use of safety gratings, the safety protection is comprehensive and reliable.

[0015] The positions of the V-shaped support table, transition plate tooling table and drive axle drive device can be adjusted, and different types of drive axles can be quickly adapted. A separate drive axle program is equipped in the control cabinet. You only need to find the corresponding model and click it to successfully change the model. The servo motor will drive the mechanism to automatically dock and complete the test run.

[0016] A special gear oil filtration system is equipped. After the drive axle is run-in, the oil is manually drained and the gear oil flows back to the oil tank through the oil collecting box for purification, ensuring that the gear oil injected each time is clean and free of impurities. The gear oil cleanliness index is ≤20mg / L and the maximum particle size is ≤30μm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of a new type of drive axle running-in test bench.

[0018] Figure 2 for Figure 1 Schematic diagram with the drive axle and some protective devices removed.

[0019] Figure 3 for Figure 2 Top view of the .

[0020] Figure 4 for Figure 2 main view.

[0021] In the attached drawings: 1-frame, 2-V-shaped support platform, 3-transition plate tooling table, 4-drive axle to be tested, 5-drive axle driving device, 501-spindle drive motor, 502-spindle worktable, 503-torque sensor, 504-flexible spindle, 6-control cabinet, 7-protective cover, 701-fixed protective cover, 702-movable protective cover, 703-movable protective cover lifting device, 704-guide column, 8-V-shaped support left and right adjustment mechanism, 9-oil receiving box, 10-wheel hub oil return groove, 11-oil tank, 12-filter, 13-transition plate tooling table up and down adjustment mechanism, 14-transition plate tooling table horizontal adjustment mechanism. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Example

[0025] Please refer to the drawings of the specification. In the embodiment of the utility model, a new type of drive axle running-in test bench comprises a frame 1, a V-shaped support table 2 is installed on the workbench of the frame 1 in parallel on the left and right sides, a transition plate tooling table 3 is installed on the workbench of the frame 1 on the side perpendicular to the V-shaped support table 2, a drive axle 4 to be tested is arranged on the V-shaped support table 2 and the transition plate tooling table 3, a drive axle driving device 5 is arranged on the outer side of the transition plate tooling table 3, the drive axle driving device 5 comprises a spindle workbench 502, the spindle workbench 502 can be adjusted in the up and down, front and back positions, a spindle driving motor 501 is fixedly installed on the spindle workbench 502, the output shaft of the spindle driving motor 501 is connected to a flexible spindle 504, the other end of the flexible spindle 504 can be drivingly connected to the drive axle 4 to be tested, a torque sensor 503 is connected between the output shaft of the spindle driving motor 501 and the flexible spindle 504, and a control cabinet 6 is arranged on one side of the drive axle driving device 5;

[0026] Protective covers 7 are provided on the outer sides of both ends of the drive axle 4 to be tested, and the protective covers 7 include fixed protective covers 701 fixedly mounted on the frame 1, and movable protective covers 702 are movably arranged on the fixed protective covers 701, and movable protective covers lifting devices 703 and guide columns 704 are connected to the movable protective covers 702, and the other ends of the movable protective covers lifting devices 703 and guide columns 704 are fixedly mounted on the frame 1, and the movable protective covers lifting devices 703 are telescopic cylinders, cylinders or electric telescopic rods. A V-shaped support left and right adjustment mechanism 8 is provided between the frame 1 and the V-shaped support 2, and a transition plate tooling platform up and down adjustment mechanism 13 and a transition plate tooling platform horizontal adjustment mechanism 14 are provided between the frame 1 and the transition plate tooling platform 3. The V-shaped support left and right adjustment mechanism 8 and the transition plate tooling platform horizontal adjustment mechanism 14 are both servo motor plus screw nut structures, and the transition plate tooling platform up and down adjustment mechanism 13 is a servo motor driven worm gear lifting mechanism plus a guide column structure. Among them, the up-down and front-back adjustment mechanism of the spindle worktable 502 has the same structure as the up-down and front-back adjustment mechanism of the transition plate tooling table 3, which will not be repeated here.

[0027] In particular, an acceleration sensor is attached to the outer wall of the gearbox of the drive axle 4 to be tested. The acceleration sensor captures the internal vibration of the drive axle. The computer receives the signals transmitted by each sensor. The relevant software inside the computer can map and record the changes of the drive axle. The data display value g can be converted into a db value display to facilitate noise comparison analysis. The power spindle position is also equipped with a torque sensor. The relevant software inside the computer can map and record the changes of the drive axle, and pay attention to the changes in real time. The sensor can be set to automatically alarm and judge the product as unqualified if it exceeds the set value. The detection accuracy deviation does not exceed ±5 of the decibel meter detection value in a silent environment; all data can be exported and saved. Transmitting data to the data acquisition system through the acceleration sensor can accurately test whether there are quality problems in the installation process of the drive axle. A safety grating can be installed on the inner side of the protective cover 7. When the equipment is running, it senses that a person's limbs have entered the protection area and the equipment automatically stops running.

[0028] The running-in test bench also includes a gear oil filtering system, specifically: an oil receiving box 9 is arranged below the middle of the drive axle 4 to be tested, and wheel hub oil return grooves 10 are arranged below both ends of the drive axle 4 to be tested. The oil receiving box 9 and the wheel hub oil return groove 10 are fixedly mounted on the frame 1, and an oil tank 11 is fixedly mounted inside the frame 1. The oil tank 11 is connected to the oil receiving box 9 and the wheel hub oil return groove 10 through an oil pipe, and a filter 12 is installed on the oil tank 11.

[0029] The drive axle is placed in this equipment, and the transition plate tooling is inserted through the main shaft fixture table (the transition plate and the drive axle rotating shaft are screwed together) to complete the docking with the drive axle. After the docking is completed, the frequency conversion motor drives the drive axle to run-in and rotate. Two acceleration sensors are placed at the gearbox position of the drive axle. The acceleration sensors capture the internal vibration of the drive axle. The computer receives the signals transmitted by each sensor. The changes of the drive axle can be mapped and recorded through the relevant software inside the computer. The data display value g can be converted to db value display for convenient noise comparison analysis. The power spindle position is also equipped with a torque sensor. The relevant software inside the computer can map and record the changes of the drive axle, and pay attention to the changes in real time. The sensor can be set to automatically alarm when exceeding the set value to determine that the product is unqualified. The detection accuracy deviation does not exceed ±5 of the decibel meter detection value in a silent environment; all data can be exported and saved.

[0030] The test steps are as follows: find the corresponding drive axle body docking tooling, lock the docking tooling - find the corresponding model on the touch screen and change the model with one click - hoist the drive axle - lock the flip pressure bridge screws - quantitative oil injection - place the sensor - press the start button for automatic flexible docking of the equipment - low-speed test run - high-speed running - noise detection - drain the oil - remove the flip pressure bridge screws and flip it to the other side - remove the sensor - remove the connecting transition plate - place the workpiece.

[0031] In the utility model, the spindle drive motor is a variable frequency motor with a speed of 0-3000r / min stepless speed regulation. The spindle worktable can move up and down and forward and backward as a whole. The docking spindle is a flexible connection, which can realize the normal docking and operation of the driving spindle and the workpiece in the eccentric state, and will not affect the data collection, ensuring that the collected data is correct, stable and reliable; the equipment is equipped with wheel hub protection covers on both sides, including fixed and movable protection covers. The movable protection covers can be raised and lowered autonomously, and the safety protection is comprehensive and reliable when used in conjunction with the safety grating; the positions of the V-shaped support table, the transition plate workbench and the drive axle drive device can be adjusted, and different types of drive axles can be quickly adapted. A separate drive axle program is equipped in the control cabinet. You only need to find the corresponding model and click it to successfully change the model. The servo motor will drive the mechanism to automatically dock and complete the test run; a special gear oil filtration system is provided. After the drive axle is run-in, the oil is manually drained, and the gear oil flows back to the oil tank through the oil receiving box for purification, ensuring that the gear oil injected each time is clean and free of impurities, and the gear oil cleanliness index is ≤20mg / L, and the maximum particle size is ≤30μm.

[0032] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0033] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

Claims

1. A new type of drive axle running-in test bench, characterized by: The machine comprises a frame (1), a V-shaped support platform (2) is installed on the workbench of the frame (1) in parallel on the left and right sides, a transition plate tooling platform (3) is installed on the side of the workbench of the frame (1) perpendicular to the V-shaped support platform (2), a drive axle (4) to be tested is arranged on the V-shaped support platform (2) and the transition plate tooling platform (3), a drive axle driving device (5) is arranged on the outer side of the transition plate tooling platform (3), and a control cabinet (6) is arranged on one side of the drive axle driving device (5); Protective covers (7) are arranged on the outer sides of both ends of the drive axle (4) to be tested, a V-shaped support platform left-right adjustment mechanism (8) is arranged between the frame (1) and the V-shaped support platform (2), and a transition plate tooling platform up-down adjustment mechanism (13) and a transition plate tooling platform horizontal adjustment mechanism (14) are arranged between the frame (1) and the transition plate tooling platform (3).

2. The new drive axle running-in test bench according to claim 1 is characterized by: The drive axle driving device (5) comprises a spindle worktable (502), the spindle worktable (502) can be adjusted in up and down, front and back positions, a spindle driving motor (501) is fixedly mounted on the spindle worktable (502), the output shaft of the spindle driving motor (501) is connected to a flexible spindle (504), and the other end of the flexible spindle (504) can be drivingly connected to the drive axle (4) to be tested.

3. The new drive axle running-in test bench according to claim 2 is characterized by: A torque sensor (503) is connected between the output shaft of the spindle drive motor (501) and the flexible spindle (504).

4. The new drive axle running-in test bench according to claim 1 is characterized by: The protective cover (7) comprises a fixed protective cover (701) fixedly mounted on the frame (1); a movable protective cover (702) is movably arranged on the fixed protective cover (701); a movable protective cover lifting device (703) and a guide column (704) are connected to the movable protective cover (702); and the other ends of the movable protective cover lifting device (703) and the guide column (704) are fixedly mounted on the frame (1).

5. The new drive axle running-in test bench according to claim 4 is characterized by: The movable protective cover lifting device (703) is a telescopic oil cylinder, a gas cylinder or an electric telescopic rod.

6. The new drive axle running-in test bench according to claim 1 is characterized by: The V-shaped support platform left-right adjustment mechanism (8) and the transition plate tooling platform horizontal adjustment mechanism (14) are both servo motor plus lead screw nut structures, and the transition plate tooling platform up-down adjustment mechanism (13) is a servo motor driven worm gear lifting mechanism plus a guide column structure.

7. The new drive axle running-in test bench according to claim 1 is characterized by: An oil receiving box (9) is arranged below the middle of the drive axle (4) to be tested, and wheel hub oil return grooves (10) are arranged below both ends of the drive axle (4) to be tested. The oil receiving box (9) and the wheel hub oil return groove (10) are both fixedly mounted on the frame (1), and an oil tank (11) is fixedly mounted inside the frame (1). The oil tank (11) is connected to the oil receiving box (9) and the wheel hub oil return groove (10) through an oil pipe, and a filter (12) is installed on the oil tank (11).

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