A type of axle disc bearing device

Abstract

This utility model discloses an axle and wheel disc support device, including a first support device and a second support device. The first support device supports the axle, and the second support device supports the wheel disc. Two inclined support blocks are movably connected to the top of the second support device. An adjustment component is provided between the two inclined support blocks. The opening and closing distance between the two inclined support blocks is controlled by the adjustment component, thereby controlling the height of the wheel disc. A horizontal moving device is provided at the bottom of the support device to control the movement of the axle and wheel disc outward along a direction perpendicular to the axle axis. This utility model improves overall stability through the support of multiple support devices; the adjustment component above the support device allows for simple and quick adjustment of the axle and wheel disc height to achieve coaxiality, improving work efficiency; after inspection, pushing the support device controls the movement of the axle and wheel disc outward to avoid the crossbeam at the top of the inspection equipment, ensuring vertical hoisting and improving stability and safety.

Description

Technical Field

[0001] This utility model relates to the field of railway axle wheel disc production technology, and in particular to an axle wheel disc bearing device. Background Technology

[0002] Axles are critical load-bearing components in the bogies of railway locomotives and rolling stock. Axle fatigue testing fully simulates the operating conditions of axles, tests various stresses on the axles, and determines whether the strength, durability, toughness, etc., of the axles meet the requirements of relevant technical standards through repeated loading conditions.

[0003] The test axle needs to be fitted with a wheel disc at one end to simulate working conditions. The axle wheel seat diameter ranges from ¢180mm to ¢250mm, and the wheel disc diameter ranges from ¢725mm to ¢1000mm. Fitting a wheel disc at one end will cause the weight to tilt. The equipment with traditional intermediate load-bearing cannot be balanced on both sides, so a bracket is needed to support the axle and wheel disc. After the test, it needs to be unloaded by hoisting. The crossbeam above the test instrument prevents vertical movement during hoisting, which will cause swaying and easily lead to collision accidents. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an axle wheel bearing device. It can stably support the axle wheel while automatically adjusting the height of the axle wheel to make the center line of the axle wheel coaxial. After the inspection is completed, the axle and wheel can be controlled to move outward to avoid the crossbeam at the top of the inspection equipment, thereby ensuring the verticality and stability of the hoisting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wheel disc bearing device includes a first bearing device and a second bearing device. The first bearing device supports the axle, and the second bearing device supports the wheel disc. The bearing height of the second bearing device is lower than that of the first bearing device. Two inclined support blocks are movably connected to the top of the second bearing device. An adjustment component is provided between the two inclined support blocks. The opening and closing distance between the two inclined support blocks is controlled by the adjustment component, thereby controlling the bearing height of the wheel disc. A horizontal moving device is provided at the bottom of the first and second bearing devices. The horizontal moving device controls the axle and the wheel disc to move outward along a direction perpendicular to the axle axis.

[0007] Preferably, multiple first bearing devices are arranged along the axle axis.

[0008] Preferably, the outer surfaces of the two inclined support blocks form a 90° angle.

[0009] Preferably, the adjustment assembly includes a double-ended lead screw, with corresponding inclined support blocks passing through and threadedly connected to each other on both sides of the double-ended lead screw.

[0010] Preferably, the first and second bearing devices are movably connected to the support frame, the bottom of the support frame is provided with rollers, and the rollers are arranged on the square track of the press machine.

[0011] Preferably, the horizontal moving device includes an upper base plate installed at the bottom of the first and second bearing devices and a lower base plate installed at the top of the support frame. The upper base plate and the lower base plate are connected by a slide rail, and the two ends of the lower base plate are provided with blocks to limit the movement range.

[0012] Preferably, the upper base plate is locked and fixed to the lower base plate by a positioning pin.

[0013] Compared with the prior art, the advantages of this utility model are as follows:

[0014] 1. The stability of the axle and wheel is significantly improved by supporting the axle and wheel with multiple load-bearing devices. In particular, the load-bearing components with different load-bearing heights can better adapt to the axle and wheel with different sizes at both ends, ensuring the horizontality of the axle during transportation and inspection, and the normal and stable operation of transportation and inspection.

[0015] 2. An adjustment component is installed above the load-bearing device to automatically adjust the height of the axle and wheel discs. This allows for simple and quick adjustment of the center lines of the axle and wheel discs to be coaxial, improving work efficiency and meeting the adaptability to different sizes of axles and wheel discs, thus improving load-bearing adaptability and increasing the load-bearing range.

[0016] 3. After the inspection is completed, push the load-bearing device to control the axle and wheel disc to move outward, avoiding the crossbeam at the top of the inspection equipment, ensuring vertical hoisting and improving stability and safety. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the right-side structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the horizontal moving device of this utility model.

[0020] In the diagram: 1. Axle; 2. Wheel disc; 3. First load-bearing device; 301. Double-ended screw; 4. Second load-bearing device; 401. Double-ended lead screw; 402. Horizontal moving device; 403. Diagonal support; 5. Roller; 6. Support frame; 100. Stop block; 200. Positioning pin; 300. Upper base plate; 400. Lower base plate; 500. Slide rail. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] See attached document Figure 1 - Appendix Figure 3 A wheel disc support device for axles includes a first support device 3 and a second support device 4. The first support device 3 supports the axle 1. Multiple first support devices 3 can be provided, and their number and position are adjusted according to the length of the axle 1. The second support device 4 supports the wheel disc 2. The diameters of the axle 1 and the wheel disc 2 are different, so the first support device 3 is higher than the second support device 4, so that the center line of the wheel disc 2 is coaxial with the center line of the axle 1.

[0024] In order to better adjust the center line of the wheel disc 2 to be coaxial with the center line of the axle 1, the top of the first bearing device 3 is provided with a groove to support the axle 1, and the lower part of the groove is provided with a double-headed screw 301. Rotating the double-headed screw 301, the two sides of the double-headed screw 301 are threaded with horizontally sliding limit blocks. By controlling the two limit blocks to move closer or further away, the axle 1 can be adjusted radially up and down to achieve a horizontal state.

[0025] The second bearing device 4 is provided with two inclined support blocks 403 at the top. The two inclined support blocks 403 are supported at 90°, which makes the support of the wheel disc 2 more stable and reliable. The lower part of the two inclined support blocks 403 is threadedly connected to a double-ended screw 401. The double-ended screw 401 is rotatably connected to the base. Rotating the end of the double-ended screw 401 drives the two inclined support blocks 403 to open and close, so as to adjust the height of the wheel disc 2 and make the center line of the wheel disc 2 coaxial with the center line of the axle 1.

[0026] The press machine can inspect axle 1 and wheel 2. The press machine has a square track. The first bearing device 3 and the second bearing device 4 are fixed on the support frame 6 through the horizontal moving device 402. The bottom of the support frame 6 is equipped with rollers 5, which are installed on the square track of the press machine. After the axle 1 and wheel 2 are adjusted, they are pushed into the press machine station. The entire support frame 6 can move in the axial direction on the square track of the press machine through the rollers 5. When the axle 1 and wheel 2 are pressed, the workpiece and the support move as a whole, and there is no displacement between the workpiece and the support. The pressing process is safe and stable.

[0027] To prevent the axle 1 and wheel 2 from interfering with the crossbeam of the pressing machine during hoisting, a horizontal moving device 402 is installed at the bottom of the first bearing device 3 and the second bearing device 4. The horizontal moving device 402 includes an upper base plate 300 installed at the bottom of the first bearing device 3 and the second bearing device 4 and a lower base plate 400 installed at the top of the support frame 6. The upper base plate 300 and the lower base plate 400 are connected by a slide rail 500. Pushing the upper base plate 300 will drive the first bearing device 3 and the second bearing device 4 to move vertically along the track axis, so that the axle 1 is misaligned with the crossbeam at the top of the testing equipment, ensuring the verticality and relative stability of the hoisting. Stops 100 are set at both ends of the lower base plate 400 to limit the range of movement. When fixing is required, positioning pins 200 are used to fix the upper base plate 300.

[0028] In use, the entire device is fixed on the support frame 6 and pushed into the press machine station by the rollers 5 (the rollers 5 can move along the axis of the axle 1 with a single degree of freedom according to the length of the axle 1 to adjust the detection position). The support frame 6 is equipped with a first bearing device 3 and a second bearing device 4 that can move in the horizontal direction. The top of the first bearing device 3 is connected to the groove by a double-ended screw 301, and the top of the second bearing device 4 is connected to two inclined support blocks 403 by a double-ended lead screw 401. By rotating the double-ended screw 301 and the double-ended lead screw 401, the axle 1 and the wheel 2 can be adjusted to move in the vertical direction so that the center line is coaxial. The two inclined support blocks 403 are at 90°, making the support more stable and reliable.

[0029] During testing, the first bearing device 3 and the second bearing device 4 are fixed to the support frame 6 by positioning pins 200. After testing, the positioning pins 200 are removed and the first bearing device 3 and the second bearing device 4 are pushed to move the axle 1 and the wheel disc 2 outward along the direction perpendicular to the axis of the axle 1 by the horizontal moving device 402. The axle 1 is offset from the crossbeam at the upper end of the testing equipment to ensure the verticality and relative stability of the hoisting. The entire device uses linear guide rails and standard parts, with a simple structure, stable sliding, and low resistance.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wheel disc bearing device for axles, comprising a first bearing device (3) and a second bearing device (4), characterized in that: The first bearing device (3) supports the axle (1), and the second bearing device (4) supports the wheel disc (2). The bearing height of the second bearing device (4) is lower than that of the first bearing device (3). The top of the second bearing device (4) is movably connected to two inclined support blocks (403). An adjustment component is provided between the two inclined support blocks (403). The opening and closing distance between the two inclined support blocks (403) is controlled by the adjustment component, thereby controlling the bearing height of the wheel disc (2). The bottom of the first bearing device (3) and the second bearing device (4) is provided with a horizontal moving device (402). The horizontal moving device (402) controls the axle (1) and the wheel disc (2) to move outward along a direction perpendicular to the axis of the axle (1).

2. An axle pie carrier as set forth in claim 1 wherein, The first bearing device (3) is provided in multiple ways along the axis of the axle (1).

3. The axle wheel disc bearing device according to claim 1, characterized in that, The outer surfaces of the two inclined support blocks (403) form a 90° angle.

4. The axle wheel disc bearing device according to claim 1, characterized in that, The adjustment assembly includes a double-ended lead screw (401), with corresponding inclined support blocks (403) passing through both sides of the double-ended lead screw (401) and threadedly connected to them.

5. The axle wheel disc bearing device according to claim 1, characterized in that, The first bearing device (3) and the second bearing device (4) are movably connected to the support frame (6), and the bottom of the support frame (6) is provided with rollers (5).

6. The axle wheel disc bearing device according to claim 5, characterized in that, The horizontal moving device (402) includes an upper base plate (300) installed at the bottom of the first bearing device (3) and the second bearing device (4), and a lower base plate (400) installed at the top of the support frame (6). The upper base plate (300) and the lower base plate (400) are connected by a slide rail (500). The two ends of the lower base plate (400) are provided with stops (100) to limit the range of movement.

7. The axle wheel disc bearing device according to claim 6, characterized in that, The upper base plate (300) is locked and fixed to the lower base plate (400) by a positioning pin (200).

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