Axle-hung box maintenance support

Abstract

The utility model relates to the technical field of electric locomotive maintenance, in particular to an axle suspension box maintenance support. Comprising a support body, a fixing assembly and a driving assembly, the support body comprises at least two rotating shafts coaxially arranged and bearing seats matched with the ends of the rotating shafts, a coupler is arranged between the two rotating shafts, the fixing assembly comprises at least two box frames arranged on the rotating shafts, one box frame is located below the rotating shafts, and the other box frame is located below the driving assembly. The adjacent box frames are located above the rotating shafts, the driving assembly comprises a worm and gear speed reducer, and the worm and gear speed reducer is connected with one rotating shaft. According to the utility model, the bearing capacity of the rotating shaft is improved by adopting the split-type rotating shaft matched bearing seat, the overturning torque is reduced by utilizing the skew symmetry layout of the two adjacent box frames on the vertical surface, and the electric rapid overturning is realized by utilizing the worm and gear speed reducer, so that the maintenance efficiency of the axle-hung box is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of electric locomotive maintenance technology, and in particular to a bearing box maintenance bracket. Background Technology

[0002] Currently, locomotive axle box maintenance requires inspection, leak testing, and welding repair of various welds and mounting brackets. The axle box must be rotated multiple times during the maintenance process to complete the inspection of welds, joint grinding, and crack repair. The original method involved suspending the axle box on a fixed support, requiring multiple rotations with the assistance of an overhead crane. This process was cumbersome, inefficient, and posed safety hazards. Utility Model Content

[0003] The purpose of this utility model is to provide a bearing box maintenance bracket to solve the problems of difficult and inefficient flipping operation during bearing box maintenance in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a maintenance bracket for a bearing box, including a bracket body, a fixing component and a driving component;

[0006] The support body includes at least two rotating shafts arranged coaxially, and bearing seats that are fitted to the ends of the rotating shafts. A coupling is provided between the two rotating shafts.

[0007] The fixing assembly includes at least two housing frames disposed on the rotating shaft, wherein one of the housing frames is located below the rotating shaft and the adjacent housing frame is located above the rotating shaft;

[0008] The drive assembly includes a worm gear reducer connected to one of the shafts.

[0009] Optionally, the frame has an "I"-shaped planar structure, including a middle horizontal arm and longitudinal connecting arms at both ends of the middle horizontal arm. One side of the frame is provided with a connecting member corresponding to the rotating shaft at the middle of the middle horizontal arm. The two ends of the longitudinal connecting arms are respectively provided with first connecting holes corresponding to the mounting holes of the bearing box, and the axis of the first connecting holes is perpendicular to the frame.

[0010] Optionally, the connector has a "C"-shaped structure with its opening facing the middle cross arm, and both ends of the connector extend horizontally outward to form connecting ears. The connecting ears are provided with a second connecting hole, and the middle cross arm is provided with a third connecting hole corresponding to the second connecting hole. A fastening component is provided between the second connecting hole and the third connecting hole.

[0011] Optionally, the rotating shaft is provided with an annular groove, and the connector is fitted into the annular groove.

[0012] Optionally, the fastening assembly includes a bolt and a nut, the bolt and the connector are located on the same side of the frame, and the threaded end of the bolt passes through the second connecting hole and the third connecting hole in sequence, the nut is located on the other side of the frame, and the nut is screwed onto the threaded section of the bolt.

[0013] Optionally, a first reinforcing rib is provided at the right angle where the intermediate horizontal arm and the longitudinal connecting arm connect. The first reinforcing rib has a right-angled triangular structure, with one right-angled side of the first reinforcing rib connected to the intermediate horizontal arm and the other right-angled side of the first reinforcing rib connected to the longitudinal connecting arm.

[0014] Optionally, the support body further includes support units corresponding to the rotating shafts one by one. Each support unit includes vertical frames arranged opposite each other, and a reinforcing beam is connected between the two opposite vertical frames. The reinforcing beam is located at the bottom of the vertical frame and parallel to the rotating shaft, and the reinforcing beam is distributed on both sides of the axis of the rotating shaft. The bearing seat is located at the top of the vertical frame, and a bearing that is rotatably connected to the end of the rotating shaft is provided on the bearing seat.

[0015] Optionally, a support platform is provided between the vertical frame on one side of the support unit and the vertical frame on the adjacent side of the adjacent support unit, and the bearing seats corresponding to the adjacent ends of the two adjacent rotating shafts are provided on the support platform.

[0016] Optionally, the support body further includes a horizontally arranged bottom frame, a plurality of support units are distributed along the length direction of the bottom frame, and a vertical frame is arranged on the bottom frame. A plurality of support pads are arranged on the bottom surface of the bottom frame, and the plurality of support pads are distributed along the circumferential direction of the bottom frame.

[0017] Optionally, the width of the bottom frame is greater than the width of the vertical frame, and a second reinforcing rib is provided at the right angle where the vertical frame connects to the bottom frame on both sides. The second reinforcing rib has a right-angled triangular structure, with one right-angled side of the second reinforcing rib connected to the vertical frame and the other right-angled side of the second reinforcing rib connected to the bottom frame.

[0018] Compared with the prior art, the beneficial effects of the bearing box maintenance bracket provided in this embodiment of the utility model are as follows:

[0019] By using at least two coaxial shafts connected by couplings and employing split-type shaft bearing housings to enhance the load-bearing capacity of the shafts, and by providing at least two housing frames, with one frame positioned below the shaft for fixing the axle clamp, and the adjacent frame positioned above the shaft for fixing the axle clamp, the obliquely symmetrical arrangement of adjacent frames in the vertical plane reduces the overturning torque, allowing for the single overturning of at least four axle clamps. Furthermore, a worm gear reducer enables rapid electric overturning with a large transmission ratio and self-locking function, making the overturning operation during axle clamp maintenance simple, convenient, stable, and reliable, significantly improving the efficiency of axle clamp maintenance. Attached Figure Description

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0021] Figure 1 A schematic diagram of the overall structure of the bearing box maintenance bracket provided in this embodiment of the utility model;

[0022] Figure 2 A schematic diagram illustrating the flipped state of the upper frame of the axle box maintenance bracket provided in this embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the box frame provided in an embodiment of the present utility model;

[0024] Figure 4 A schematic diagram of the assembly of the frame and connectors provided in this embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the rotating shaft provided in an embodiment of the present utility model;

[0026] Figure 6 This is a side view of the bracket body provided in an embodiment of the present utility model.

[0027] The markings in the attached diagram are as follows:

[0028] 1. Support body; 11. Rotating shaft; 111. Annular groove; 12. Bearing seat; 13. Coupling; 14. Vertical frame; 15. Reinforcing beam; 16. Support platform; 17. Bottom frame; 18. Support pad; 2. Fixing assembly; 21. Box frame; 211. Intermediate cross arm; 2111. Third connecting hole; 212. Longitudinal connecting arm; 2121. First connecting hole; 22. Connecting piece; 221. Connecting lug; 3. Worm gear reducer; 4. Bolt; 5. Nut; 6. First reinforcing rib; 7. Second reinforcing rib. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] This utility model discloses a maintenance bracket for axle box, such as Figure 1 and Figure 2 As shown, the assembly includes a support body 1, a fixing component 2, and a drive component. The support body 1 includes at least two coaxially arranged rotating shafts 11 and bearing seats 12 that mate with the ends of the rotating shafts 11. A coupling 13 is provided between the two rotating shafts 11. The fixing component 2 includes at least two housings 21 mounted on the rotating shafts 11, with one housing 21 located below the rotating shaft 11 and the adjacent housing 21 located above the rotating shaft 11. The drive component includes a worm gear reducer 3, which is connected to one of the rotating shafts 11.

[0031] Through the implementation of the above-described embodiment of the axle box maintenance bracket, at least two coaxial rotating shafts 11 are used and connected by a coupling 13. The use of split-type rotating shafts 11 with matching bearing seats 12 enhances the load-bearing capacity of the rotating shafts 11, enabling the axle box maintenance bracket of this embodiment to simultaneously support the maintenance of at least four axle boxes. At least two housing frames 21 are provided on each rotating shaft 11, with one housing frame 21 located below the rotating shaft 11 for fixed installation of the axle box, and an adjacent housing frame 21 located above the rotating shaft 11 for fixed installation of the axle box. The obliquely symmetrical arrangement of adjacent housing frames 21 in the vertical plane effectively reduces the turning torque when multiple axle boxes are turned on a single rotating shaft 11, thereby achieving stable turning of at least four axle boxes in a single operation and improving the reliability of the turning. The worm gear reducer 3 is then used to achieve electric rapid rotation. Based on the large transmission ratio and self-locking function of the worm gear reducer 3, the rotation operation of the bearing box maintenance bracket in this embodiment is simple, convenient, stable, and reliable when used in the bearing box maintenance process, greatly improving the maintenance efficiency of the bearing box. Preferably, the coupling 13 is a plum blossom coupling 13, which can compensate for axial, radial, and angular displacements between the two rotating shafts 11, effectively absorb vibration and impact, reduce mechanical damage caused by vibration, and is convenient to install and disassemble.

[0032] Furthermore, combined Figure 3 As shown, the frame 21 has an "I"-shaped planar structure, including a middle horizontal arm 211 and longitudinal connecting arms 212 disposed at both ends of the middle horizontal arm 211. One side of the frame 21 is provided with a connector 22 corresponding to the rotating shaft 11 at the middle part of the middle horizontal arm 211. The two ends of the longitudinal connecting arms 212 are respectively provided with first connecting holes 2121 corresponding to the mounting holes of the bearing box, and the axis of the first connecting holes 2121 is perpendicular to the frame 21.

[0033] Through the implementation of the above-described embodiment of the axle box maintenance bracket, an "I"-shaped frame 21 is used, and the middle part of the frame 21 is connected to the rotating shaft 11 via a connector 22. This allows the longitudinal connecting arms 212 on both sides of the frame 21 to be symmetrically distributed along the axis of the rotating shaft 11, enabling it to withstand larger loads and pressures. This facilitates the fixing of the axle box using bolts 4 and other components through the first connecting holes 2121 at the ends of the longitudinal connecting arms 212. Furthermore, it provides uniform support and load distribution during rotation, reducing stress concentration and structural deformation caused by uneven loads. Simultaneously, it ensures precise alignment during axle box installation.

[0034] Furthermore, combined Figure 4 As shown, the connector 22 has a "C"-shaped structure with its opening facing the middle cross arm 211, and both ends of the connector 22 extend horizontally outward to form connecting ears 221. A second connecting hole is provided on the connecting ear 221, and a third connecting hole 2111 corresponding to the second connecting hole is provided on the middle cross arm 211. A fastening component is provided between the second connecting hole and the third connecting hole 2111.

[0035] Through the implementation of the above-described embodiment of the shaft-holding box maintenance bracket, the "C"-shaped connector 22 is used to grip the rotating shaft 11, and the fastening assembly is used to fix the connector 22 to the intermediate cross arm 211, thereby securing the box frame 21 to the rotating shaft 11 and facilitating the installation and disassembly of the box frame 21. The connecting ear 221 provides an additional connecting surface between the connector 22 and the box frame 21, increasing the gripping tightness of the connector 22 on the rotating shaft 11 and reducing the possibility of loosening between the box frame 21 and the rotating shaft 11 due to vibration or impact. Furthermore, the tightness of the connector 22 can be easily adjusted by adjusting the fastening assembly, ensuring stable rotation of the box frame 21 when the rotating shaft 11 rotates.

[0036] Furthermore, such as Figure 5 As shown, the rotating shaft 11 is provided with an annular groove 111, and the connector 22 is fitted into the annular groove 111.

[0037] By implementing the above embodiment of the axle box maintenance bracket, the annular groove 111 and the connector 22 are fitted together to limit the connector 22, so as to prevent the box frame 21 from shifting along the rotating shaft 11 when the rotating shaft 11 rotates, thereby further improving the reliability of the axle box flipping operation.

[0038] Furthermore, looking back Figure 4 The fastening assembly includes a bolt 4 and a nut 5. The bolt 4 and the connector 22 are located on the same side of the frame 21, and the threaded end of the bolt 4 passes through the second connecting hole and the third connecting hole 2111 in sequence. The nut 5 is located on the other side of the frame 21, and the nut 5 is screwed onto the threaded section of the bolt 4.

[0039] Through the implementation of the above-described embodiment of the bearing box maintenance bracket, using bolts 4 and nuts 5 as fastening components, a reliable mechanical connection can be provided, capable of withstanding large tensile forces and torques, ensuring the stability of the clamping of the connecting piece 22 onto the rotating shaft 11. Furthermore, the tightness of the connection can be easily adjusted by rotating the nuts 5 without disassembling the entire structure. Proper tightening can reduce vibration and noise caused by loosening, while also facilitating subsequent adjustments and maintenance.

[0040] Furthermore, looking back Figure 3 A first reinforcing rib 6 is provided at the right angle where the intermediate horizontal arm 211 and the longitudinal connecting arm 212 meet. The first reinforcing rib 6 has a right-angled triangular structure, with one right-angled side of the first reinforcing rib 6 connected to the intermediate horizontal arm 211 and the other right-angled side of the first reinforcing rib 6 connected to the longitudinal connecting arm 212.

[0041] Through the implementation of the above-described embodiment of the axle box maintenance bracket, the first reinforcing rib 6 effectively enhances the strength and rigidity of the connection between the intermediate cross arm 211 and the longitudinal connecting arm 212, thereby significantly increasing the load-bearing capacity of the frame 21 and preventing structural fatigue or damage to the frame 21. Furthermore, when the axle box is tilted, stress can be distributed from the intermediate cross arm 211 and the longitudinal connecting arm 212 to the entire first reinforcing rib 6, thus reducing the stress level at individual connection points and improving the overall durability of the frame 21. Simultaneously, the triangular structure of the first reinforcing rib 6 helps resist torque and bending forces, thereby improving the frame 21's ability to withstand rotational or torsional loads and ensuring the stability and reliability of the axle box tilting.

[0042] Furthermore, looking back Figure 2 The support body 1 also includes support units corresponding to the rotating shafts 11. Each support unit includes opposing vertical frames 14, with reinforcing beams 15 connecting the two opposing vertical frames 14. The reinforcing beams 15 are located at the bottom of the vertical frames 14, parallel to the rotating shafts 11, and are distributed on both sides of the axis of the rotating shafts 11. Bearing seats 12 are located at the top of the vertical frames 14, and bearings rotatably connected to the ends of the rotating shafts 11 are mounted on the bearing seats 12.

[0043] Through the implementation of the above-described embodiment of the bearing housing maintenance bracket, each bracket unit corresponding to a rotating shaft 11 can support one rotating shaft 11. This, combined with the split rotating shaft 11 and the matching bearing housing 12, enhances the load-bearing capacity of the rotating shaft 11 and prevents the bracket from tilting or deforming when the rotating shaft 11 is under load. The reinforcing beams 15 distributed on both sides of the axis of the rotating shaft 11 help to evenly distribute the load of the rotating shaft 11 onto the bracket, reducing the pressure on individual support points and extending service life. Furthermore, by placing the bearing housing 12 at the top of the vertical frame 14, it facilitates the installation, maintenance, and replacement of bearings, and also ensures smooth rotation and low friction of the rotating shaft 11, improving rotational efficiency.

[0044] Furthermore, a support platform 16 is provided between the vertical frame 14 on one side of the support unit and the vertical frame 14 on the adjacent side of the adjacent support unit, and the bearing seats 12 corresponding to the adjacent ends of the two adjacent rotating shafts 11 are provided on the support platform 16.

[0045] Through the implementation of the above-described embodiment of the bearing housing maintenance bracket, by setting a support platform 16 between two adjacent bracket units, it helps to ensure better alignment of the two rotating shafts 11 when connected by the coupling 13 at this location, and provides an additional fixing point to ensure the stability of the connection between the two rotating shafts 11, thereby reducing the impact of torque and axial force generated by the rotation of the rotating shafts 11 on the connection part. At the same time, since the support platform 16 is located between the two rotating shafts 11, this position is supported by two support units, which can greatly distribute the load from the rotating shafts 11, reduce the pressure on the bearings of individual rotating shafts 11, and effectively extend the service life of the bearings.

[0046] Furthermore, the support body 1 also includes a horizontally arranged bottom frame 17, with multiple support units distributed along the length of the bottom frame 17, and a vertical frame 14 disposed on the bottom frame 17. Multiple support pads 18 are disposed on the bottom surface of the bottom frame 17, and the multiple support pads 18 are distributed along the circumferential direction of the bottom frame 17.

[0047] Through the implementation of the above-described embodiment of the bearing box maintenance bracket, the bottom frame 17 serves as the base of the bracket body 1, providing stable support for the entire bracket body 1. This also helps to evenly distribute the loads of multiple bracket units across the entire bottom frame 17, reducing pressure on individual support points and preventing localized overload. Simultaneously, the support pads 18 help to evenly distribute the weight and external loads on the bottom frame 17 to the ground, reducing pressure on individual support points. Furthermore, the cushioning effect of the support pads 18 helps to reduce vibration and noise during operation of the bracket body 1, improving the comfort of the working environment.

[0048] Furthermore, combined Figure 6As shown, the width of the bottom frame 17 is greater than the width of the vertical frame 14, and second reinforcing ribs 7 are provided at the right angles where the vertical frame 14 connects to the bottom frame 17 on both sides. The second reinforcing ribs 7 have a right-angled triangular structure, with one right-angled side of the second reinforcing rib 7 connected to the vertical frame 14 and the other right-angled side of the second reinforcing rib 7 connected to the bottom frame 17.

[0049] Through the implementation of the above-described embodiment of the axle box maintenance bracket, the wider bottom frame 17 provides a larger support area, thereby enhancing the stability of the entire bracket body 1, reducing deformation caused by weight or external forces, and distributing the load from the vertical frame 14 to increase the load-bearing capacity of the bracket body 1. Furthermore, the second reinforcing rib 7 effectively enhances the strength and rigidity of the connection between the vertical frame 14 and the bottom frame 17, significantly increasing the load-bearing capacity of the bottom frame 17. During axle box tilting, stress is distributed from between the vertical frame 14 and the bottom frame 17 to the entire second reinforcing rib 7, reducing the stress level at individual connection points and improving the overall durability of the bracket body 1. Simultaneously, the triangular structure of the second reinforcing rib 7 helps resist torque and bending forces, further enhancing the load-bearing capacity of the bottom frame 17 and ensuring the stability and reliability of the axle box tilting.

[0050] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A bearing housing servicing support, characterized in that: The axle box maintenance support comprises a support body, a fixing assembly and a driving assembly; The support body comprises at least two rotating shafts arranged in the same axis and bearing seats mounted at the ends of the rotating shafts, and a shaft coupling is arranged between the two rotating shafts; The fixing assembly comprises at least two box frames arranged on the rotating shafts, one of which is arranged below the rotating shaft and the other of which is arranged above the rotating shaft; The driving assembly comprises a worm gear reducer connected with one of the rotating shafts.

2. The axle box cage access support of claim 1, wherein: The box frame has a "H" shaped planar structure, comprising a middle horizontal arm and longitudinal connecting arms arranged at the two ends of the middle horizontal arm, one side of the box frame is arranged at the middle part of the middle horizontal arm and provided with a connecting piece corresponding to the rotating shaft, and the two ends of the longitudinal connecting arms are respectively provided with first connecting holes corresponding to axle box mounting holes, and the axis of the first connecting holes is perpendicular to the box frame.

3. The axle box cage access support of claim 2, wherein: The connecting piece has a "C" shaped structure with an opening facing the middle horizontal arm, and the two ends of the connecting piece horizontally extend outward to form connecting ears, the connecting ears are provided with second connecting holes, the middle horizontal arm is provided with third connecting holes corresponding to the second connecting holes, and a fastening assembly is arranged between the second connecting holes and the third connecting holes.

4. The axle box cage access support of claim 3, wherein: The rotating shaft is provided with an annular groove, and the connecting piece is fitted into the annular groove.

5. The axle box cage access support of claim 3, wherein: The fastening assembly comprises a bolt and a nut, the bolt and the connecting piece are arranged on the same side of the box frame, the threaded end of the bolt passes through the second connecting hole and the third connecting hole in sequence, and the nut is arranged on the other side of the box frame and is screwed with the threaded section of the bolt.

6. The axle box inspection support of any one of claims 2-5, wherein: A first reinforcing rib is arranged at the right angle part where the middle horizontal arm and the longitudinal connecting arm meet, the first reinforcing rib has a right triangle structure, one of the right angle sides of the first reinforcing rib is connected with the middle horizontal arm, and the other right angle side of the first reinforcing rib is connected with the longitudinal connecting arm.

7. The axle box cage access support of claim 1, wherein: The support body further comprises a support unit corresponding to each rotating shaft, the support unit comprises two vertically arranged vertical frames, and a reinforcing cross beam is connected between the two vertical frames, the reinforcing cross beam is arranged at the bottom of the vertical frame and parallel to the rotating shaft, the reinforcing cross beam is distributed on both sides of the axis of the rotating shaft, the bearing seat is arranged at the top of the vertical frame, and the bearing seat is provided with a bearing rotatably connected with the end of the rotating shaft.

8. The axle box cage access support of claim 7, wherein: A support platform is arranged between the vertical frame on one side of the support unit and the vertical frame on the adjacent side of the adjacent support unit, and the bearing seats corresponding to the adjacent ends of the two rotating shafts are arranged on the support platform.

9. The axle box cage access support of claim 7, wherein: The support body further comprises a horizontally arranged bottom frame, a plurality of support units are distributed along the length direction of the bottom frame, and the vertical frames are arranged on the bottom frame, a plurality of support pads are arranged on the bottom surface of the bottom frame and distributed along the circumferential direction of the bottom frame.

10. The axle box cage access support of claim 9, wherein: The width of the bottom frame is greater than the width of the vertical frame, and a second reinforcing rib is arranged at a right angle where the two sides of the vertical frame meet the bottom frame, the second reinforcing rib is in a right triangle structure, one of the right angle sides of the second reinforcing rib is connected with the vertical frame, and the other right angle side of the second reinforcing rib is connected with the bottom frame.

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