A wheel spacing adjustment device for a railway wheelset

Abstract

This application relates to the technical field of train wheelset maintenance equipment, and in particular to a train wheelset track adjustment device, which includes a support mechanism. A servo motor A is mounted on the left end face of the support mechanism, and a transmission screw is mounted on the output shaft of the servo motor A. The transmission screw is rotatably connected to the support mechanism through a bearing seat. A moving mechanism is installed inside the support mechanism, and the moving mechanism has a screw hole that matches the transmission screw. A protrusion assembly is fixedly connected to the outside of the moving mechanism. This application, by setting up components such as a lifting push rod B, a mounting frame, a servo motor B, and a drive wheel, and through the fixed cooperation between the lifting push rod B and the mounting frame, allows the drive wheel to contact the train wheel through the drive of the servo motor B. The rotation of the drive wheel drives the wheelset to rotate, thereby achieving the effect of the device coordinating lateral adjustment, ensuring uniform force on the wheelset, and ensuring the consistency and stability of track adjustment.

Description

Technical Field

[0001] This application relates to the technical field of train wheelset maintenance equipment, and in particular to a train wheelset track adjustment device. Background Technology

[0002] The train wheelset is the part of the locomotive and rolling stock that comes into contact with the rails. It consists of two wheels, left and right, firmly pressed onto the same axle. The function of the wheelset is to ensure the operation and steering of the locomotive and rolling stock on the rails, bear all the static and dynamic loads from the locomotive and rolling stock, transfer them to the rails, and transfer the loads caused by uneven track to the various components of the locomotive and rolling stock.

[0003] In the inspection and maintenance of train wheelsets, wheelbase is a key parameter affecting driving safety. A search revealed Chinese Patent Publication No. CN221475101U, which discloses a train wheelset wheelbase adjustment device. This device includes a support assembly located on the front side of the top center of a workbench. The device comprises a workbench, support assembly, wheelset axle, wheel, positioning assembly, external adjustment assembly, and internal adjustment assembly. In use, the user pushes the wheelset axle, carrying the wheel, to the top of the workbench. The wheelset axle is then adjusted to the top of the support sleeve. Next, the first hydraulic cylinder is activated to push the support sleeve, causing it to support the wheelset axle and lift both the wheelset axle and the wheel into a suspended state. Then, the positioning assembly located at the rear of the top of the workbench is activated, causing the bottom of the front side of the positioning assembly to descend to the top of the support sleeve, thus positioning the wheelset axle in conjunction with the support sleeve and preventing rotation of the suspended axle.

[0004] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks:

[0005] Existing wheelset track adjustment devices typically employ fixed-gap mechanical structures, which are difficult to adapt to the track adjustment requirements of different train wheelsets (such as standard gauge and broad gauge wheelsets). They require manual tooling changes or the coordination of multiple sets of equipment, resulting in low adjustment efficiency and high labor intensity. At the same time, traditional devices lack sufficient positioning accuracy for wheelsets, and wheelset misalignment or uneven force can easily occur during adjustment, potentially damaging wheelset components and affecting the accuracy of the adjusted track and driving safety. Utility Model Content

[0006] In order to solve the problems mentioned in the background art, this application provides a train wheelset track adjustment device.

[0007] The present application provides a train wheelset track adjustment device, which adopts the following technical solution: a train wheelset track adjustment device includes a support mechanism, a servo motor A is installed on the left end face of the support mechanism, and a transmission screw is installed on the output shaft of the servo motor A;

[0008] The transmission screw is rotatably connected to the support mechanism through a bearing seat, and a moving mechanism is installed inside the support mechanism. The moving mechanism has a screw hole that matches the transmission screw inside, and a protrusion assembly is fixedly connected to the outside of the moving mechanism. There are two protrusion assemblies, and the two protrusion assemblies are fixedly connected to the front and rear sides of the moving mechanism in opposite directions.

[0009] Optionally, the moving mechanism is slidably connected to the support mechanism via a protrusion assembly fixedly connected to its outer surface, and a caster wheel is installed on the bottom surface of the support mechanism.

[0010] Optionally, the universal wheels are provided in four places, and the four universal wheels are fixedly connected to the four corners of the bottom end face of the support mechanism, and a guide rail assembly is fixedly connected to the top surface of the moving mechanism, and the guide rail assembly has a longitudinal groove inside.

[0011] Optionally, the longitudinal groove in the guide rail assembly has two opposing push rods fixedly connected inside, and a lifting push rod A is fixedly connected to the top surface of the moving mechanism.

[0012] Optionally, a bracket assembly is fixedly connected to the top of the lifting push rod A. The bracket assembly has an arc-shaped structure, and ball guide assemblies are installed in an arc-shaped array on the inner wall of the bracket assembly. The ball guide assemblies are used to lift the train wheel axle.

[0013] Optionally, a movable component is fixedly connected to the outer side of the unfolding push rod. There are two movable components, and a vertically arranged lifting push rod B is fixedly connected to the top surface of each of the two movable components. The lifting push rod B is perpendicular to the top surface of the movable component.

[0014] Optionally, a mounting bracket is fixedly connected to the top surface of the two lifting push rods B, and a servo motor B is fixedly connected to the outside of the mounting bracket. A drive wheel is mounted on the output shaft of the servo motor B, and the drive wheel is used to drive the train wheel to rotate.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. This utility model, by setting up components such as lifting push rod B, mounting frame, servo motor B, and drive wheel, and through the fixed cooperation between lifting push rod B and mounting frame, enables drive wheel to contact train wheel through servo motor B. The rotation of drive wheel drives wheelset rotation, thereby achieving the effect of this device to cooperate with lateral adjustment, so that wheelset is evenly stressed to ensure consistent and stable wheel track adjustment.

[0017] 2. This utility model, by setting up components such as a servo motor A, a transmission screw, a moving mechanism, and a protrusion assembly, enables the transmission screw to drive the moving mechanism to move laterally along the inside of the support mechanism through the transmission cooperation between the servo motor A and the transmission screw. The protrusion assembly guides the direction of movement, thereby achieving the effect of the device being able to initially adjust the lateral spacing of the train wheelsets through lateral movement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the structure of the support mechanism and the caster wheel combination in the embodiments of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the combination of the moving component and the lifting push rod B in the embodiments of this application;

[0021] Figure 4 This is a top view of the structure in an embodiment of this application.

[0022] Figure 5 This is a schematic diagram of the structure viewed from the left in an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the structure of the moving mechanism and the bump assembly in the embodiments of this application.

[0024] Reference numerals: 1. Support mechanism; 101. Caster wheel; 1011. Servo motor A; 1012. Transmission screw; 2. Moving mechanism; 201. Protrusion assembly; 2011. Guide rail assembly; 2012. Lifting push rod A; 2013. Bracket assembly; 2014. Ball guide assembly; 3. Deployment push rod; 301. Moving assembly; 3011. Lifting push rod B; 3012. Mounting bracket; 3013. Servo motor B; 3014. Drive wheel. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0026] This application discloses a train wheelset track adjustment device. For example... Figures 1-6 As shown, a train wheelset track adjustment device includes: a servo motor A1011 is mounted on the left end face of the support mechanism 1, and a transmission screw 1012 is mounted on the output shaft of the servo motor A1011;

[0027] The transmission screw 1012 is rotatably connected to the support mechanism 1 through a bearing seat. The support mechanism 1 is equipped with a moving mechanism 2. The moving mechanism 2 has a screw hole that matches the transmission screw 1012. The outer side of the moving mechanism 2 is fixedly connected with a protrusion assembly 201. There are two protrusion assemblies 201, which are fixedly connected to the front and rear sides of the moving mechanism 2 in opposite directions. The servo motor A1011 at the left end of the support mechanism 1 is started, driving the transmission screw 1012 to rotate. The transmission screw 1012 is fixed in the support mechanism 1 through a bearing seat. The thread on its outer wall is engaged with the screw hole inside the moving mechanism 2, driving the moving mechanism 2 to move along the transverse groove of the support mechanism 1.

[0028] Please see Figure 5 The moving mechanism 2 is slidably connected to the support mechanism 1 through the protrusion assembly 201 fixedly connected to its outer surface, and the support mechanism 1 is equipped with a caster wheel 101 on its bottom surface.

[0029] Please see Figure 1 There are four casters 101, which are fixedly connected to the four corners of the bottom surface of the support mechanism 1. A guide rail assembly 2011 is fixedly connected to the top surface of the moving mechanism 2. The guide rail assembly 2011 has a longitudinal groove inside. Two protrusions 201 on the outside of the moving mechanism 2 are fixedly embedded in the sliding groove of the support mechanism 1, guiding the moving mechanism 2 to move smoothly laterally and realizing the initial adjustment of the lateral distance between the train wheels. For example, when it is necessary to increase the wheel track, the servo motor A1011 rotates forward, and the transmission screw 1012 pushes the moving mechanism 2 to move to both sides; conversely, the distance is reduced. Two unfolding push rods 3 are fixedly connected to the longitudinal groove in the guide rail assembly 2011, and a lifting push rod A2012 is fixedly connected to the top surface of the moving mechanism 2.

[0030] Please see Figure 2A bracket assembly 2013 is fixedly connected to the top of the lifting push rod A2012. The bracket assembly 2013 has an arc-shaped structure, and guide ball assemblies 2014 are installed in an arc-shaped array on the inner wall of the bracket assembly 2013. The guide ball assemblies 2014 are used to lift the train wheel axle. The lifting push rod B3011 at the top of the two moving components 301 is activated, adjusting the height of the mounting bracket 3012 so that the drive wheel 3014 on the output shaft of the servo motor B3013 is in contact with the surface of the train wheel. The servo motor B3013 drives the drive wheel 3014 to rotate, and through friction... The friction force drives the wheelset to rotate at a constant speed. At this time, the unfolding push rod 3 moves again, pushing the moving component 301 to move laterally. During the rotation of the wheelset, the wheel track is adjusted evenly to ensure that the force on both sides of the wheelset is consistent, avoiding the problem of uneven force caused by traditional static adjustment. The moving component 301 is fixedly connected to the outer side of the unfolding push rod 3. There are two moving components 301, and the top surface of the two moving components 301 is fixedly connected to the longitudinally arranged lifting push rod B3011. The lifting push rod B3011 is perpendicular to the top surface of the moving component 301.

[0031] Please see Figure 5 A mounting bracket 3012 is fixedly connected to the top surface of the lifting push rod B3011. Four universal wheels 101 at the bottom of the support mechanism 1 are distributed at the four corners of the bottom surface and can rotate 360°, which facilitates the movement of the device in the maintenance workshop. When it is necessary to fix the device, the universal wheels 101 are braked to achieve positioning. After adjustment, the brake can be released to move the device to the next work position. A servo motor B3013 is fixedly connected to the outside of the mounting bracket 3012. A drive wheel 3014 is installed on the output shaft of the servo motor B3013. The drive wheel 3014 is used to drive the train wheel to rotate.

[0032] The implementation principle of the train wheelset track adjustment device in this embodiment is as follows: The servo motor A1011 at the left end of the support mechanism 1 starts, driving the transmission screw 1012 to rotate. The transmission screw 1012 is fixed in the support mechanism 1 through the bearing seat. The thread on its outer wall cooperates with the screw hole inside the moving mechanism 2, driving the moving mechanism 2 to move along the transverse groove of the support mechanism 1. The protrusion assembly 201 on the outer side of the moving mechanism 2 (fixed in two opposite positions) is embedded in the slide groove of the support mechanism 1, guiding the moving mechanism 2 to move smoothly laterally, realizing the initial adjustment of the lateral track spacing of the train wheelset. For example, when it is necessary to increase the track spacing, the servo motor A1011 rotates forward, and the transmission screw 1012 pushes the moving mechanism 2 to move to both sides; conversely, the track spacing is reduced.

[0033] The guide rail assembly 2011 at the top of the moving mechanism 2 has a longitudinal groove. After the two unfolding push rods 3 (set opposite each other) in the longitudinal groove are activated, they push the moving assembly 301 to move laterally along the guide rail assembly 2011 until the moving assembly 301 fits against both sides of the wheelset. At the same time, the lifting push rod A2012 at the top of the moving mechanism 2 extends, driving the bracket assembly 2013 to rise. The bracket assembly 2013 has an arc-shaped structure. The guide ball assembly 2014 on the inner wall contacts the train wheel axle. The rolling characteristics of the guide ball assembly 2014 are used to lift the wheel axle, so that the wheelset is suspended in the air, which is convenient for precise adjustment of the wheel track.

[0034] The lifting push rods B3011 at the top of the two moving components 301 are activated, adjusting the height of the mounting bracket 3012 so that the drive wheel 3014 on the output shaft of the servo motor B3013 is in contact with the surface of the train wheel. The servo motor B3013 drives the drive wheel 3014 to rotate, and the wheelset rotates at a constant speed through friction. At this time, the unfolding push rod 3 is activated again, pushing the moving component 301 to move laterally. During the rotation of the wheelset, the wheel gauge is adjusted evenly to ensure that the force on both sides of the wheelset is consistent, avoiding the problem of uneven force caused by traditional static adjustment.

[0035] The four casters 101 at the bottom of the support mechanism 1 (distributed at the four corners of the bottom surface) can rotate 360°, which facilitates the movement of the device in the maintenance workshop. When it is necessary to fix the device, the positioning is achieved by braking the casters 101. After the adjustment is completed, the device can be moved to the next work position by releasing the brake.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A train wheelset track adjustment device, comprising a support mechanism (1), characterized in that: A servo motor A (1011) is mounted on the left end face of the support mechanism (1), and a transmission screw (1012) is mounted on the output shaft of the servo motor A (1011). The transmission screw (1012) is rotatably connected to the support mechanism (1) through the bearing seat, and the support mechanism (1) is equipped with a moving mechanism (2). The moving mechanism (2) has a screw hole that matches the transmission screw (1012) inside, and a protrusion assembly (201) is fixedly connected to the outside of the moving mechanism (2). There are two protrusion assemblies (201), and the two protrusion assemblies (201) are fixedly connected to the front and rear sides of the moving mechanism (2) in opposite directions.

2. A wheel set gauge adjustment device for a railway vehicle as claimed in claim 1, wherein: The moving mechanism (2) is slidably connected to the support mechanism (1) via a protrusion assembly (201) fixedly connected to its outer side, and a caster wheel (101) is installed on the bottom end of the support mechanism (1).

3. A wheel set gauge adjustment device for a railway vehicle as claimed in claim 2, wherein: The universal wheels (101) are provided in four places. The four universal wheels (101) are fixedly connected to the four corners of the bottom surface of the support mechanism (1). The top surface of the moving mechanism (2) is fixedly connected to the guide rail assembly (2011). The guide rail assembly (2011) has a longitudinal groove inside.

4. A wheel spacing adjustment device for a railway wheelset as claimed in claim 3, wherein: The longitudinal groove in the guide rail assembly (2011) has two opposing push rods (3) fixedly connected inside, and the top surface of the moving mechanism (2) is fixedly connected to a lifting push rod A (2012).

5. A wheel spacing adjustment device for a railway wheelset as claimed in claim 4, wherein: The top end of the lifting push rod A (2012) is fixedly connected to a bracket assembly (2013). The bracket assembly (2013) has an arc-shaped structure, and ball guide assemblies (2014) are installed in an arc-shaped array on the inner wall of the bracket assembly (2013). The ball guide assemblies (2014) are used to lift the train wheel axle.

6. A wheel spacing adjustment device for a railway wheelset as claimed in claim 4, wherein: The outer side of the unfolding push rod (3) is fixedly connected to a moving component (301). There are two moving components (301), and the top surfaces of the two moving components (301) are fixedly connected to a longitudinally arranged lifting push rod B (3011). The lifting push rod B (3011) is perpendicular to the top surface of the moving component (301).

7. A wheel spacing adjustment device for a railway wheelset as claimed in claim 6, wherein: A mounting bracket (3012) is fixedly connected to the top surface of the two lifting push rods B (3011). A servo motor B (3013) is fixedly connected to the outside of the mounting bracket (3012). A drive wheel (3014) is mounted on the output shaft of the servo motor B (3013). The drive wheel (3014) is used to drive the train wheel to rotate.

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