Axle end bolt and stop lug attaching device for railway wagon axle

Abstract

The utility model relates to the technical field of railway wagon axle production equipment, and particularly discloses a railway wagon axle end bolt and stop lug attaching device which comprises a front cover, three axle end bolts are connected to the upper portion of the front cover in a threaded mode, and the front cover is arranged in an annular penetrating mode with the circle center of the front cover as the center; the anti-loosening piece is in a regular triangle shape and is clamped and installed between the front cover and the end head of the shaft end bolt, the three inner corners are each connected with two stop lugs, and the end portions of the stop lugs tilt upwards; three shaft end bolt auxiliary positioning sleeves are connected above the central through hole disc; and the rotating shaft is vertically installed in the through hole of the central through hole disc and rotatably connected with the central through hole disc, and a stop lug attaching column cone is arranged at the end, located on the shaft end bolt auxiliary positioning sleeve, of the rotating shaft and can extrude the stop lug when the rotating shaft rotates so that the stop lug can be attached to the shaft end bolt. According to the utility model, the labor intensity of an operator and the requirement on the skill level are reduced, the tedious operation steps are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway freight car wheel axle production equipment, and in particular relates to a device for fitting a shaft end bolt and a stop ear of a railway freight car wheel axle. Background Art

[0002] In the manufacturing process of railway freight car axles, the stability of the shaft end bolts is directly related to the safety and stability of vehicle operation. To this end, the industry has adopted an efficient anti-loosening solution - the anti-loosening plate ear bending technology, that is, by prying up all six ears on the anti-loosening plate and accurately bending them, so that they fit tightly on the hexagonal plane of the shaft end bolts. This design cleverly uses the physical locking principle to effectively prevent the shaft end bolts from loosening under long-term operation or harsh working conditions, laying a solid foundation for the safe transportation of railway freight cars.

[0003] However, in the current front-line production operation practice, there are still certain challenges in achieving this anti-loosening process. The traditional operation method relies on the operator to use tools such as flat shovels and hammers to knock or turn the stop ears one by one to achieve the fit. This method not only requires the operator to have a high level of skills and a patient and meticulous work attitude, but also faces problems such as high labor intensity, low operating efficiency and high difficulty in quality control. Due to the limitations of manual operation, it is often difficult to ensure that each stop ear can achieve the ideal fit, which may affect the overall anti-loosening effect and bury hidden dangers for the safe operation of the vehicle.

[0004] In view of the above problems, it is particularly important to continuously optimize and improve the implementation process of the anti-loosening plate ear bending technology. This requires us to actively explore the innovation of operating tools, standardization of operating processes, and improvement of operators' professional skills on the basis of maintaining the technical principles. By introducing more efficient and accurate tools and equipment, formulating and implementing strict operating standards, and strengthening the training and guidance of operators, we can effectively overcome the drawbacks of traditional manual operations, improve operating efficiency, reduce labor intensity, and ensure the steady improvement of product quality.

[0005] Therefore, we propose a device for fitting the end bolts of the axle of a railway freight car with a stop ear to solve the above technical problems. Utility Model Content

[0006] In order to solve the technical problems existing in the above-mentioned prior art, the utility model provides a device for fitting the shaft end bolts and stop ears of a railway freight car wheel axle.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A device for fitting a bolt and a stop ear at the end of a railway freight car axle, comprising:

[0009] The front cover is threadedly connected with three shaft-end bolts, and the three shaft-end bolts are annularly arranged through the front cover with the center of the front cover as the center;

[0010] The lock washer is equilateral triangle, and is clamped and installed between the front cover and the end of the shaft-end bolt, and the three inner angles respectively correspond to the positions of the three shaft-end bolts, and two retaining ears are connected at the three inner angles, and the ends of the retaining ears are upturned;

[0011] The central through-hole disc is annularly connected with three shaft-end bolt auxiliary positioning sleeves respectively corresponding to the positions of the shaft-end bolts;

[0012] The rotating shaft is vertically installed in the through-hole of the central through-hole disc and is rotatably connected with the central through-hole disc. One end of the rotating shaft located at the shaft-end bolt auxiliary positioning sleeve is provided with a retaining ear fitting column cone, which can squeeze the retaining ear when the rotating shaft rotates, so that the retaining ear continues to upturn and fits the shaft-end bolt.

[0013] In a further technical solution, the number of the retaining ear fitting column cones is three, and they are respectively located between the two retaining ears at the three inner angles of the lock washer.

[0014] In a further technical solution, one end of the rotating shaft away from the shaft-end bolt auxiliary positioning sleeve is provided with a grip disc.

[0015] In a further technical solution, it further includes a servo motor and a servo control component for controlling the operation of the servo motor. One end of the rotating shaft away from the shaft-end bolt auxiliary positioning sleeve is fixedly connected to the output shaft of the servo motor, the grip disc is fixedly installed at the tail of the servo motor, and the servo control component is connected to the grip disc.

[0016] In a further technical solution, the servo control component includes a forward rotation drive handle and a reverse rotation drive handle, the forward rotation drive handle and the reverse rotation drive handle are symmetrically arranged inside the grip disc, and both the forward rotation drive handle and the reverse rotation drive handle are electrically connected to the servo motor.

[0017] In a further technical solution, the servo control component further includes an emergency stop button, the emergency stop button is installed in the middle of the grip disc, and the emergency stop button is electrically connected to the servo motor.

[0018] In a further technical solution, a motor protection shell is arranged outside the servo motor.

[0019] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are:

[0020] 1. Compared with the traditional method of knocking or turning the stop ear, the operator only needs to simply adjust the position and angle of the rotating shaft to efficiently complete the fitting work of all the stop ears, which reduces the labor intensity of the operator knocking or turning one by one, reduces the cumbersome operation steps, reduces the requirements for skill level, and effectively improves work efficiency.

[0021] 2. The utility model ensures that each stop ear can achieve an ideal fitting state through precise positioning, reduces the influence of human factors on the fitting quality, and improves the overall quality stability and reliability of the product.

[0022] 3. The utility model realizes automatic control of the laminating operation through the servo motor and the servo control assembly, which not only reduces the labor intensity of the operator, but also avoids the influence of human factors on the laminating quality, improves the stability and reliability of the operation, greatly shortens the operation time, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0024] Figure 1 This is a schematic diagram of the shaft side structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the axial structure of the utility model in another direction;

[0026] Figure 3 It is a schematic diagram of the structure of the stop ear fitting the rear axle end bolt of the utility model.

[0027] Figure markings: 1-front cover, 2-shaft end bolt, 3-anti-loosening plate, 4-stop ear, 5-center through hole disk, 6-shaft end bolt auxiliary positioning sleeve, 7-rotating shaft, 8-stop ear fitting column cone, 9-grip plate, 10-servo motor, 11-forward rotation drive handle, 12-reverse rotation drive handle, 13-emergency stop button, 14-motor protection cover. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Combine the following Figures 1 - 3 , the utility model is described in more detail.

[0030] See also Figure 1 andFigure 2 , the present utility model provides a fitting device for the axle-end bolt and the stop ear of a railway freight car wheel axle, including:

[0031] A front cover 1, on which three axle-end bolts 2 are threadedly connected, and the three axle-end bolts 2 are arranged in a ring and penetrate through the front cover 1 with the center of the front cover 1 as the center;

[0032] A lock washer 3, in the shape of an equilateral triangle, is clamped and installed between the front cover 1 and the end of the axle-end bolt 2, and the three inner angles respectively correspond to the positions of the three axle-end bolts 2. Two stop ears 4 are connected at the three inner angles, and the ends of the stop ears 4 are upturned;

[0033] A central through-hole disc 5, on which three axle-end bolt auxiliary positioning sleeves 6 respectively corresponding to the positions of the axle-end bolts 2 are annularly connected;

[0034] A rotating shaft 7, which is vertically installed in the through-hole of the central through-hole disc 5 and is rotatably connected to the central through-hole disc 5. A stop-ear fitting column cone 8 is provided at one end of the rotating shaft 7 located in the axle-end bolt auxiliary positioning sleeve 6, and can squeeze the stop ear 4 when the rotating shaft 7 rotates, so that the stop ear 4 continues to upturn and fits the hexagonal plane of the axle-end bolt 2.

[0035] In the production and manufacturing process of the railway freight car wheel axle, first, the railway freight car wheel axle is fixed on the workbench to ensure its stability. Subsequently, the front cover 1 is installed at one end of the wheel axle, and the lock washer 3 is clamped and installed between the front cover 1 and the end of the axle-end bolt 2 through the three axle-end bolts 2 to ensure the firmness of the connection. Then, the central through-hole disc 5 is placed above the front cover 1, and the accurate positioning and tightening of the axle-end bolt auxiliary positioning sleeve 6 and the axle-end bolt 2 are used to ensure the stability and accurate alignment of the central through-hole disc 5, thus completing the positioning. After that, by rotating the rotating shaft 7, the stop-ear fitting column cone 8 on the rotating shaft 7 will rotate and squeeze the stop ear 4 on the lock washer 3, so that the end of the stop ear 4 continues to upturn and closely fits the hexagonal plane of the axle-end bolt 2. Refer to Figure 3, after ensuring that all stop ears 4 have reached the ideal fitting state, stop rotating the shaft 7. Finally, check the fitting of each stop ear 4 to ensure that they are tightly fitted and not loose. If it is found that the stop ear 4 is not fully fitted, the position and angle of the shaft 7 can be readjusted and the fitting operation can be performed again. After completing the fitting of all stop ears 4, clean the work area and then prepare for the next operation or end the current workflow. Compared with the traditional method of knocking or pulling the stop ears 4, the operator only needs to simply adjust the position and angle of the shaft 7 to efficiently complete the fitting of all stop ears 4, reducing the labor intensity of the operator knocking or pulling one by one, reducing cumbersome operating steps, reducing the requirements for skill level, and effectively improving work efficiency. In addition, through precise positioning, it is ensured that each stop ear 4 can reach the ideal fitting state, reducing the influence of human factors on the fitting quality, and improving the overall quality stability and reliability of the product.

[0036] In a specific embodiment, the number of the stop ear fitting column cones 8 is three, which are respectively located between two stop ears 4 at three inner corners of the anti-loosening sheet 3 .

[0037] By setting the number of stop ear fitting column cones 8 to three and placing them between two stop ears 4 at three inner corners, in a single operation, the three stop ear fitting column cones 8 can work simultaneously, and the three stop ears 4 on the anti-loosening sheet 3 can be fitted at one time. By rotating forward and reverse, the fitting operation of all the stop ears 4 on the anti-loosening sheet 3 can be completed, which greatly shortens the operation time and improves the work efficiency.

[0038] In a specific embodiment, see Figure 1 and Figure 2 A gripping plate 9 is provided at one end of the rotating shaft 7 away from the shaft end bolt auxiliary positioning sleeve 6.

[0039] The design of the grip plate 9 allows the operator to apply force more conveniently when rotating the shaft 7, and control the rotation angle and force, so as to complete the fitting operation more easily. It is particularly suitable for scenes where the shaft 7 needs to be rotated frequently or long-term operations are performed, and can significantly improve the operating efficiency. In addition, the grip plate 9 can provide a variety of holding positions for easy carrying.

[0040] In a specific embodiment, see Figure 1 and Figure 2 , and also includes a servo motor 10 and a servo control component for controlling the operation of the servo motor 10. The end of the rotating shaft 7 away from the shaft end bolt auxiliary positioning sleeve 6 is fixedly connected to the output shaft of the servo motor 10, and the grip plate 9 is fixedly installed at the tail of the servo motor 10, and the servo control component is connected to the grip plate 9.

[0041] The introduction of the servo motor 10 and the servo control component realizes the automatic control of the laminating operation. The servo control component can achieve precise control of the servo motor 10 through preset programs or instructions, thereby driving the rotating shaft 7 to achieve precise control of the ear-stopping laminating column cone 8. This not only reduces the labor intensity of the operator but also avoids the influence of human factors on the laminating quality, improving the stability and reliability of the operation. In addition, the servo motor 10 can complete multiple rotations and laminating actions in a short time, greatly shortening the operation time and improving the production efficiency.

[0042] In a specific embodiment, refer to Figure 1 and Figure 2 , the servo control component includes a forward rotation drive handle 11 and a reverse rotation drive handle 12. The forward rotation drive handle 11 and the reverse rotation drive handle 12 are symmetrically arranged inside the grip disc 9, and both the forward rotation drive handle 11 and the reverse rotation drive handle 12 are electrically connected to the servo motor 10.

[0043] The settings of the forward rotation drive handle 11 and the reverse rotation drive handle 12 provide an intuitive and easy-to-understand operation method for the operator. The operator can directly control the forward and reverse rotations of the servo motor 10 by simply using the forward rotation drive handle 11 and the reverse rotation drive handle 12, reducing the operation threshold, enabling the operator to quickly get started and work efficiently, and reducing the requirement for skill level.

[0044] In a specific embodiment, refer to Figure 1 , the servo control component further includes an emergency stop button 13. The emergency stop button 13 is installed in the middle of the grip disc 9, and the emergency stop button 13 is electrically connected to the servo motor 10.

[0045] The design of the emergency stop button 13 can quickly cut off the power supply of the servo motor 10 in an emergency, realizing the emergency braking of the equipment, effectively avoiding potential accidents and damages, and improving the safety during the operation process.

[0046] In a specific embodiment, refer to Figure 2 , a motor protection shell 14 is arranged outside the servo motor 10.

[0047] The motor protection shell 14 can effectively protect the servo motor 10, reduce the damage caused by accidental collisions to the servo motor 10, and improve the service life of the servo motor 10.

[0048] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A fitting device for the axle end bolt and the stop ear of a railway freight car wheel axle, characterized in that, Including: A front cover (1), on which three shaft-end bolts (2) are threadedly connected. The three shaft-end bolts (2) are annularly arranged through the front cover (1) with the center of the front cover (1) as the center; A lock washer (3), which is an equilateral triangle and is clamped and installed between the front cover (1) and the ends of the shaft-end bolts (2). The three inner angles respectively correspond to the positions of the three shaft-end bolts (2), and two retaining ears (4) are connected at the three inner angles. The ends of the retaining ears (4) are upturned; A central through-hole disc (5), on which three shaft-end bolt auxiliary positioning sleeves (6) corresponding to the positions of the shaft-end bolts (2) are annularly connected; A rotating shaft (7), which is vertically installed in the through-hole of the central through-hole disc (5) and is rotatably connected to the central through-hole disc (5). At one end of the rotating shaft (7) located in the shaft-end bolt auxiliary positioning sleeve (6), there is a retaining ear fitting column cone (8), which can squeeze the retaining ear (4) when the rotating shaft (7) rotates, so that the retaining ear (4) continues to upturn and fits against the shaft-end bolt (2).

2. The fitting device for the axle end bolt and the stop ear of a railway freight car wheel axle according to claim 1, characterized in that, The number of the retaining ear fitting column cones (8) is three, and they are respectively located between the two retaining ears (4) at the three inner angles of the lock washer (3).

3. The fitting device for the axle-end bolt and the retaining lug of a railway freight car wheel axle according to claim 1, characterized in that At one end of the rotating shaft (7) away from the shaft-end bolt auxiliary positioning sleeve (6), there is a grip disc (9).

4. A fitting device for the axle end bolt and the stop ear of a railway freight car wheel axle according to claim 3, characterized in that, It also includes a servo motor (10) and a servo control component for controlling the operation of the servo motor (10). One end of the rotating shaft (7) away from the shaft-end bolt auxiliary positioning sleeve (6) is fixedly connected to the output shaft of the servo motor (10). The grip disc (9) is fixedly installed at the tail of the servo motor (10), and the servo control component is connected to the grip disc (9).

5. A fitting device for the axle end bolt and the stop ear of a railway wagon wheel axle according to claim 4, characterized in that, The servo control component includes a forward rotation driving handle (11) and a reverse rotation driving handle (12). The forward rotation driving handle (11) and the reverse rotation driving handle (12) are symmetrically arranged inside the grip disc (9), and both the forward rotation driving handle (11) and the reverse rotation driving handle (12) are electrically connected to the servo motor (10).

6. The fitting device for the axle end bolt and the stop ear of a railway freight car wheel axle according to claim 5, characterized in that, The servo control component also includes an emergency stop button (13), which is installed in the middle of the grip disc (9), and the emergency stop button (13) is electrically connected to the servo motor (10).

7. A fitting device for the axle end bolt and the stop ear of a railway freight car wheel axle according to claim 4, characterized in that, A motor protection shell (14) is arranged outside the servo motor (10).

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