Railway truck bearing rotation portable roller

Abstract

The utility model discloses a portable wheel presser of railway wagon bearing rotation, which comprises a bottom support, a bearing body fixedly connected to the bottom support, a clamping groove arranged at the bottom of the bottom support and used for clamping the bottom of a steel rail, a movable extruding head arranged on the bearing body, a fastening screw rod penetrating through the bearing body and threadedly connected with the extruding head, a fastening handle arranged at the end of the fastening screw rod, and a vertical positioning plane arranged on the side of the bearing body close to a wheel, which is used for aligning the vertical center line of the bearing body and the wheel automatically by abutting against the outer surface of the wheel rim. The utility model realizes the quick and accurate centering positioning of the wheel presser and the wheel, facilitates installation, taking, delivering and self-maintenance, and can reduce cost and improve work efficiency. The utility model ensures firm pressing and eliminates the safety hazard of wheel displacement.

Description

Technical Field

[0001] This utility model relates to the technical field of railway freight car maintenance and repair tools, and belongs to the portable wheel presser for fixing wheels when inspecting railway freight car bearings, especially the portable wheel presser for rotating railway freight car bearings. Background Technology

[0002] In the field of railway freight car operation and maintenance, conducting on-site rotational inspections of bearings flagged by equipment such as THDS (Infrared Axle Temperature Detection System) and TADS (Trajectory Acoustic Diagnostic System for Early Fault Tracking of Rolling Bearings) is an important task. During this process, a wheel press is used to compact the wheels to prevent displacement during car body lifting (lifting the car body), avoid contact between the side frame guide and the bearing outer ring, and ensure the safety and accuracy of the inspection operation.

[0003] Currently, dedicated rotary roller presses are mostly used on-site. However, existing roller presses have many drawbacks: Installation is inconvenient and poses safety hazards: Due to limitations in wiring conditions, the existing pressure roller installation... It is difficult, and if the wheels are not compacted properly, the wheels are prone to displacement when lifting the pick, which poses a safety risk.

[0004] 2. Poor adaptability and high cost: Existing wheel presses have limited adaptability to different wheel models, and installation and removal are not quick enough. Repair and replacement after damage are difficult, and purchasing from the original manufacturer is costly.

[0005] 3. Difficulty in controlling clamping force: The clamping force directly affects the wheel's fixing effect and the rotation inspection of the bearing. Insufficient clamping force may cause the wheel to slip during rotation, affecting the inspection results; excessive clamping force may damage the wheel surface or even affect the normal use of the wheel.

[0006] Structure and inconvenience in retrieval: The overall structure is often quite large, making retrieval and delivery inconvenient and affecting operation. Business efficiency.

[0007] 5. Low positioning accuracy: It relies heavily on manual visual inspection and experience for positioning, making it difficult to achieve fast and accurate results. The alignment of the force center between the ground and the wheel results in poor clamping effect, or requires repeated adjustments, which is time-consuming and laborious. Utility Model Content

[0008] This utility model provides a portable roller press for rotating railway freight car bearings. Its reasonable structure enables rapid and accurate alignment between the roller press and the wheel; it is easy to install, transport, and self-maintain, which can reduce costs and improve work efficiency; it ensures a firm press and eliminates the safety hazard of wheel displacement.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A portable roller press for rotating railway freight car bearings includes: a base; and a support body fixedly connected to the base. A slot is provided at the bottom of the base for engaging with the bottom of the rail; The extrusion head is movably mounted on the support body; A fastening screw passes through the bearing and is threadedly connected to the extrusion movable head; A fastening handle is located at the end of the fastening screw; The bearing has a vertical positioning plane on the side near the wheel, which is used to automatically align the bearing with the vertical center line of the wheel by abutting against the outer surface of the wheel rim.

[0010] Furthermore, the lower edge of the vertical positioning plane is provided with a positioning flange extending toward the wheel. The shape of the positioning flange matches the edge of the wheel rim, and is used for positioning in both the vertical and horizontal directions simultaneously.

[0011] Furthermore, the slot is a U-shaped structure with an opening facing downwards, and its internal width is adapted to the width of the bottom of a standard steel rail.

[0012] Furthermore, the end of the extrusion head is provided with an arc-shaped contact surface to increase the contact area with the wheel spokes and disperse the clamping force.

[0013] Furthermore, the support body and the base are integrally formed.

[0014] Furthermore, the fastening screw is a trapezoidal threaded screw with a self-locking function.

[0015] Furthermore, the components of the pressure roller are welded from metal materials.

[0016] This invention utilizes the contact relationship between the outer rim of the wheel and the rail. The pressure roller slot is secured to the bottom of the rail, and the vertical center line of the support body is aligned with the contact point between the wheel and the rail. The rotating screw is tightened, and the pressing head contacts and presses the outer spokes of the wheel, thus compacting the wheel. This ensures that the wheel does not move during lifting and that the side frame guide does not contact the outer ring of the bearing, allowing for a complete inspection of the bearing's rotation. Beneficial effects

[0017] Fast and accurate positioning: With the vertical positioning plane (and optional positioning flange) set on the bearing, it can be automatically aligned by simply placing it against the outside of the wheel rim and utilizing the cylindrical surface characteristics of the rim itself. No manual measurement or complex adjustment is required, which greatly improves the positioning accuracy and installation efficiency, and ensures the effective transmission of clamping force from the source, preventing wheel displacement.

[0018] Simple structure, portable and economical: The overall structure is simple and compact, with few parts, light weight, and easy to handle. It can be quickly processed and welded from scrap metal materials according to drawings. The manufacturing process is simple and low-cost, eliminating the need for reliance on manufacturers and facilitating on-site configuration and large-scale promotion.

[0019] Securely installed and safe: It firmly engages with the bottom of the rail via a slot, and combined with screw drive and self-locking function, it can apply and maintain a stable clamping force. The arc-shaped contact surface of the extrusion head disperses pressure, preventing damage to the wheel spokes and ensuring safety and reliability during the lifting operation.

[0020] High versatility: Based on the standard structure of the wheel rim, it has good versatility for different wheels of the same type of truck. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the pressure roller of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the pressure roller of this utility model used in conjunction with wheels and rails.

[0023] Figure 3 This is a partially enlarged schematic diagram of the positioning structure of the support part of this utility model.

[0024] In the picture: 1. Base; 2. Support body; 3. Slot; 4. Extrusion head; 401. Curved contact surface; 5. Tighten the lead screw; 6. Tighten the handle; 7. Positioning flange; 8. Wheels; 9. Steel rails; 10. Positioning plane. Detailed Implementation

[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1 to 3 As shown, the portable roller press for rotating railway freight car bearings provided by this utility model mainly consists of a base 1, a support body 2, a slot 3, a pressing movable head 4, a fastening screw 5, and a fastening handle 6.

[0027] The base support 1 serves as the basic support component. The support body 2 is fixedly connected to the base support 1. In this embodiment, the support body 2 and the base support 1 are preferably an integral structure welded from metal materials (such as steel) to ensure overall strength. The slot 3 is located at the bottom of the base support 1. It is a U-shaped structure with an opening facing downwards. The internal width is designed to match the bottom width of the standard railway rail 9, which can stably engage with the bottom of the rail 9 and provide a reliable support point.

[0028] The bearing 2, near the side of the wheel 8, has a machined vertical locating plane 10. This plane is used to directly abut against the outer cylindrical surface of the wheel rim during installation. Further, a locating flange 7 extending towards the wheel is welded or machined onto the lower edge of this vertical locating plane. The shape of this locating flange 7 (e.g., with an arc or step matching the root of the rim) is designed to conform to the edge of the wheel rim. Through the surface contact between the vertical locating plane 10 and the outer surface of the rim, and the engagement of the locating flange 7 with the edge of the rim, alignment of the bearing 2 with the vertical centerline of the wheel rail contact portion of the wheel 8 can be achieved quickly and automatically in both horizontal and vertical directions, without the need for repeated manual measurement and calibration.

[0029] The pressing head 4 is movably mounted on the support body 2 through its threaded hole. The fastening screw 5 passes through the threaded through-hole on the support body 2 and engages with the threaded hole of the pressing head 4. The fastening handle 6 is fixedly mounted on the outer end of the fastening screw 5 for easy application of force by the operator. Preferably, the fastening screw 5 uses a trapezoidal thread with a self-locking function to prevent loosening under vibration. The end of the pressing head 4 facing the wheel spoke is designed with an arc-shaped contact surface. This curved surface better conforms to the contour of the spoke, increases the contact area, evenly distributes the clamping force, and avoids damaging the wheel.

[0030] The working principle of this utility model: First, align the slot 3 of the pressure roller with the bottom of the rail 9.

[0031] Then, the entire pressure roller is pushed toward the wheel 8, so that the vertical positioning plane 201 on the support 2 is in close contact with the outer surface of the wheel rim, while the positioning flange 7 is engaged with the edge of the rim. This action utilizes the cylindrical surface characteristics of the rim to automatically and precisely align the pressure roller with the center line of the wheel.

[0032] Next, the operator rotates the fastening handle 6 clockwise, driving the fastening screw 5 to rotate. Due to the threaded engagement between the screw and the bearing 2, and the threaded connection between the screw and the pressing head 4, the pressing head 4 moves towards the wheel spokes under the drive of the screw until its arc-shaped contact surface makes firm contact with the spokes near the "vertical pressing point" (i.e., the arc junction between the wheel spokes and the outer rim of the wheel) and continuously applies a pressing force.

[0033] At this point, the pressure roller, through the engagement of the slot 3 with the rail 9, the contact between the bearing 2 and the wheel rim, and the pressing of the moving head 4 against the spokes, forms a stable lever system. When the car body is lifted for bearing rotation inspection, the pressure roller effectively restrains the wheels, preventing them from rolling or shifting laterally, thus ensuring operational safety.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A portable pressure roller for rotating railway freight car bearings, characterized in that, include: Base (1); Support (2), fixedly connected to the base (1); A slot (3) is provided at the bottom of the base (1) for engaging with the bottom of the rail; a pressing movable head (4) is movably provided on the support body (2); a fastening screw (5) passes through the support body (2) and is threadedly connected to the pressing movable head (4); a fastening handle (6) is provided at the end of the fastening screw (5); the support body (2) has a vertical positioning plane (10) on the side near the wheel, which is used to automatically align the support body (2) with the vertical center line of the wheel by abutting against the outer surface of the wheel rim.

2. The portable pressure roller for rotating railway freight car bearings according to claim 1, characterized in that: The lower edge of the vertical positioning plane is provided with a positioning flange (7) extending toward the wheel. The shape of the positioning flange (7) matches the edge of the wheel rim and is used for positioning in both the vertical and horizontal directions.

3. The portable pressure roller for rotating railway freight car bearings according to claim 1 or 2, characterized in that: The slot (3) is a U-shaped structure with an opening facing downwards, and its internal width is adapted to the width of the bottom of the standard rail.

4. The portable pressure roller for rotating railway freight car bearings according to claim 1 or 2, characterized in that: The end of the extrusion head (4) is provided with an arc-shaped contact surface to increase the contact area with the wheel spokes and disperse the pressing force.

5. The portable pressure roller for rotating railway freight car bearings according to claim 1 or 2, characterized in that: The support (2) and the base (1) are integrally formed.

6. The portable pressure roller for rotating railway freight car bearings according to claim 1 or 2, characterized in that: The fastening screw (5) is a trapezoidal thread screw with self-locking function.

7. The portable pressure roller for rotating railway freight car bearings according to claim 1 or 2, characterized in that: The components of the pressure roller are welded from metal materials.

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