A precision bogie brake support

Abstract

The utility model relates to railway vehicle technical field, concretely is a kind of precision bogie brake support, including connecting seat, the side of connecting seat is equipped with base, the side fixed mounting of base has oval plug rod, the middle portion of oval plug rod is rotatably installed with pivot, the one end fixed mounting of pivot has oval plate, the middle portion of base is equipped with mounting slot, the upper side rotatably installed with rotating shaft in the middle portion of base, the lower end fixed mounting of rotating shaft has umbrella tooth two, the outside fixed mounting of pivot one end middle portion has umbrella tooth one.The utility model can realize fast installation quick release, and multi-specification compatibility is strong, by the guidance pre-jointing of oval plug rod and oval slot, umbrella tooth transmission drives oval plate lock, cooperate reverse operation quick unlocking, base dismounting can be completed without heavy tool, greatly improve the replacement efficiency of different specifications bearing head, adapt to the bogie demand of multiple wheel diameter, multiple brake types.

Description

Technical Field

[0001] This utility model relates to the field of railway vehicle technology, specifically to a precision bogie brake bracket. Background Technology

[0002] The bogie brake bracket is a core structural component used to connect the bogie to the braking system and provide stable support and precise positioning for the braking components. It is not only a "connecting frame" but also a "bearing base" and "positioning reference" to ensure the stable operation of the braking system. One end is firmly connected to the bogie frame (or key parts such as axle boxes and crossbeams) through bolts, welding, etc., while the other end is precisely assembled with braking components such as brake calipers, brake discs, and magnetic rail brakes, realizing the mechanical connection between the braking system and the bogie.

[0003] Traditional bogie brake brackets are typically fastened with multiple sets of bolts. During installation, the bolt holes must be aligned one by one and the positioning repeatedly calibrated. Due to the limited space at the bottom of the bogie, bolt removal and installation require heavy tools such as wrenches, making the operation quite cumbersome. At the same time, the bracket is an integrated fixed structure, which cannot be adapted to bogies with different wheel diameters and brake types. When replacing brake components of different specifications, the entire bracket must be disassembled, or even the bogie frame must be modified. The adaptability is extremely poor, and the replacement time is long. Utility Model Content

[0004] The purpose of this invention is to provide a precision bogie brake bracket to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A precision bogie brake bracket includes a connecting seat, a base on one side of the connecting seat, an elliptical insert rod fixedly mounted on one side of the base, a rotating shaft rotatably mounted on the middle of the elliptical insert rod, an elliptical plate fixedly mounted on one end of the rotating shaft, an installation groove in the middle of the base, a rotating shaft rotatably mounted above the middle of the base, a second umbrella-shaped tooth fixedly mounted on the lower end of the rotating shaft, a first umbrella-shaped tooth fixedly mounted on the outer side of the middle of one end of the rotating shaft, a handwheel fixedly mounted on the upper end of the rotating shaft, an elliptical slot in one side of the middle of the connecting seat, a rotating groove in the middle of the elliptical slot, a guide groove in one side of the middle of the connecting seat, and a guide slider fixedly mounted on one side of the middle of the elliptical insert rod.

[0007] In some embodiments, lifting lugs are fixedly installed on both sides of the middle of the other end of the connecting seat, and a fixing rod is provided in the middle of the two lifting lugs.

[0008] In some embodiments, a pin hole is provided at one end of the fixing rod and in the middle of the two lifting lugs, and a plurality of through holes are uniformly provided on the surface of the fixing rod.

[0009] In some embodiments, a fixing cylinder is fixedly installed at one end of the fixing rod, and a pin hole is provided in the middle of the fixing cylinder.

[0010] In some embodiments, a sealing ring is provided on the outer side of the middle part of the connection between the elliptical plug and the elliptical slot, and a reserved hole is provided at each of the four corners of the middle part of the base.

[0011] In some embodiments, the rotating groove and the elliptical slot are connected. When the elliptical plate and the elliptical insert are at a vertical angle, the elliptical plate abuts against the end of the elliptical slot. A rubber pad is attached to one end of the elliptical plate, and the guide slider abuts against the guide groove.

[0012] In some embodiments, both the second umbrella tooth and the first umbrella tooth are located in the middle of the mounting groove, the second umbrella tooth and the first umbrella tooth mesh, one end of the rotating shaft is rotatably mounted on one side of the mounting groove, a top tooth plate is fixedly mounted on the outer side of the upper middle part of the base, and a rotating groove is provided on the outer side of the top tooth plate.

[0013] In some embodiments, a top tooth plate is slidably engaged on the outer side above the middle of the rotating shaft, and limit grooves are formed on both sides above the middle of the rotating shaft. Limit blocks are fixedly installed on both sides of the middle of the top tooth plate, and the limit blocks and limit grooves are slidably engaged. The top tooth plate and the bottom tooth plate mesh with each other, and a fixing plate is fixedly installed on one side of the bottom tooth plate. A screw is threadedly connected to the middle of one end of the fixing plate, and the lower end of the screw is rotatably engaged in the middle of the guide groove.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. When in use, this utility model can achieve quick installation and disassembly, and has strong adaptability to multiple specifications. Through the pre-connection of the elliptical plug rod and the elliptical slot, the elliptical plate is locked by the bevel gear transmission, and the reverse operation is used to quickly unlock it. The base can be disassembled and assembled without heavy tools, which greatly improves the replacement efficiency of different specifications of bearing heads and adapts to the bogie requirements of multiple wheel diameters and multiple braking types.

[0016] 2. When this utility model is in use, the elliptical plate surface contact locking is combined with the friction anti-loosening of the rubber pad, and the meshing positioning of the top tooth plate and the bottom tooth plate and the pre-tightening of the screw form a double anti-loosening structure, which can resist the high-frequency vibration of the train and avoid locking failure; the sealing ring at the connection can isolate foreign objects in harsh environments, prevent key components from rusting and jamming, and extend the service life of the structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first appearance structure of the present utility model;

[0018] Figure 2This is a schematic diagram of the second appearance structure of the present utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the connector of this utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the base of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the base of this utility model;

[0022] Figure 6 This is a schematic diagram of the transmission relationship structure of this utility model.

[0023] In the diagram: 1. Connecting seat; 10. Elliptical slot; 101. Rotating groove; 11. Base; 12. Elliptical insert rod; 13. Elliptical plate; 14. Rubber pad; 15. Rotating shaft; 16. Mounting groove; 17. Umbrella tooth one; 18. Rotating shaft; 19. Umbrella tooth two; 20. Rotating slide groove; 21. Bottom tooth plate; 22. Handwheel; 23. Top tooth plate; 24. Limiting block; 25. Fixing plate; 26. Screw; 27. Limiting groove; 28. Guide block; 29. ​​Guide groove; 30. Sealing ring; 31. Reserved hole; 32. Lifting lug; 33. Fixing rod; 34. Pin hole one; 35. Fixing cylinder; 36. Pin hole two; 37. Through hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1 - Figure 6This utility model provides a technical solution: a precision bogie brake bracket, including a connecting seat 1, a base 11 on one side of the connecting seat 1, an elliptical insert rod 12 fixedly installed on one side of the base 11, a rotating shaft 15 rotatably installed in the middle of the elliptical insert rod 12, an elliptical plate 13 fixedly installed at one end of the rotating shaft 15, an installation groove 16 in the middle of the base 11, a rotating shaft 18 rotatably installed above the middle of the base 11, a bevel gear 19 fixedly installed at the lower end of the rotating shaft 18, and an outer side of the middle of one end of the rotating shaft 15 fixedly installed with... The upper end of the rotating shaft 18 is fixedly mounted with a handwheel 22. An elliptical slot 10 is formed on one side of the middle of the connecting seat 1. A rotating groove 101 is formed in the middle of the elliptical slot 10. A guide groove 29 is formed on one side of the middle of the connecting seat 1. A guide slider 28 is fixedly mounted on one side of the middle of the elliptical insert 12. The rotating groove 101 and the elliptical slot 10 are connected. When the elliptical plate 13 and the elliptical insert 12 are at a perpendicular angle, the elliptical plate 13 abuts against the end of the elliptical slot 10. A rubber pad 14 is attached to one end of the elliptical plate 13. 28 and guide groove 29 abut against each other. Rotating groove 101 and elliptical slot 10 are connected. When elliptical plate 13 and elliptical insert 12 are at a vertical angle, elliptical plate 13 abuts against the end of elliptical slot 10. Rubber pad 14 is attached to one end of elliptical plate 13. Guide slider 28 and guide groove 29 abut against each other. Umbrella tooth 19 and umbrella tooth 17 are both located in the middle of mounting groove 16. Umbrella tooth 19 and umbrella tooth 17 mesh. One end of rotating shaft 15 is rotatably mounted on one side of mounting groove 16. Top tooth plate is fixedly mounted on the outer side of the upper middle part of base 11. 23. A rotating groove 20 is provided on the outer side of the top tooth plate 23. The top tooth plate 23 is slidably engaged on the outer side above the middle of the rotating shaft 18. Limiting grooves 27 are provided on both sides above the middle of the rotating shaft 18. Limiting blocks 24 are fixedly installed on both sides of the middle of the top tooth plate 23. The limiting blocks 24 and the limiting grooves 27 are slidably engaged. The top tooth plate 23 and the bottom tooth plate 21 are meshed. A fixing plate 25 is fixedly installed on one side of the bottom tooth plate 21. A screw 26 is threadedly connected to the middle of one end of the fixing plate 25. The lower end of the screw 26 is rotatably engaged in the middle of the guide groove 29.

[0026] In this embodiment, the guide-type insertion and removal structure of the elliptical insert rod 12 and the elliptical slot 10, combined with the precise positioning of the guide slider 28 and the guide groove 29, allows for rapid pre-connection of the base 11 and the connecting seat 1. Then, the handwheel 22 drives the rotating shaft 18, which, through the meshing transmission of the first umbrella tooth 17 and the second umbrella tooth 19, drives the elliptical plate 13 to rotate. When the elliptical plate 13 and the elliptical insert rod 12 are at a 90-degree angle, rapid locking is achieved. Compared to traditional bolt connections, assembly is faster, significantly improving the efficiency of replacing multi-specification bearing heads. Simultaneously, the elastic compression of the surface contact locking rubber pad 14 at the end of the elliptical plate 13 and the elliptical slot 10 utilizes friction to resist vibration, preventing the locking structure from loosening, and the top teeth... The meshing positioning of plate 23 and bottom tooth plate 21, combined with the thread pre-tightening of screw 26, can firmly lock the rotational freedom of rotating shaft 18. Even in the high-frequency vibration environment of the train, it can prevent the elliptical plate 13 from rotating unexpectedly and ensure the stability of the braking system connection. The non-circular cross-section of elliptical insert 12 and elliptical slot 10, combined with the rigid limiting of guide slider 28 and guide groove 29, can limit the relative rotation of base 11 and connecting seat 1. During the locking process, the surface contact force of elliptical plate 13 is uniform. Rubber pad 14 can compensate for small installation gaps, avoid positioning offset caused by local stress concentration, ensure the installation accuracy of components such as brake caliper and brake shoe support, ensure uniform transmission of braking force, and reduce brake shoe wear.

[0027] Example 2: As Figure 1 - Figure 3 As shown, lifting lugs 32 are fixedly installed on both sides of the middle of the other end of the connecting seat 1. A fixing rod 33 is provided in the middle of the two lifting lugs 32. A pin hole 34 is opened at one end of the fixing rod 33 and in the middle of the two lifting lugs 32. Multiple through holes 37 are evenly opened on the surface of the fixing rod 33. A fixing cylinder 35 is fixedly installed at one end of the fixing rod 33. A pin hole 36 is opened in the middle of the fixing cylinder 35. A sealing ring 30 is provided on the outer side of the middle of the connection between the elliptical insert rod 12 and the elliptical slot 10. A reserved hole 31 is opened at each of the four corners of the middle of the base 11.

[0028] In this embodiment, the pin hole 34 enables precise hinge connection between the connecting seat 1 and the fixed rod 33, adapting to the dynamic displacement requirements of the bogie; the multiple through holes 37 on the surface of the fixed rod 33 are weight-reduction holes, reducing the overall weight without reducing structural strength, adapting to the lightweight requirements of the bogie; the pin hole 36 of the fixed cylinder 35 is used to connect with the brake; the sealing ring 30 at the connection between the elliptical insert 12 and the elliptical slot 10 can effectively isolate foreign objects such as mud, rainwater, and salt spray in the track environment, preventing impurities from entering the locking structure and avoiding corrosion and jamming of key components such as the elliptical plate 13 and the rotating shaft 15; the reserved holes 31 at the four corners of the base 11 can be used to fix the entire base 11 to the bogie with bolts.

[0029] Working principle:

[0030] like Figure 1 - Figure 6 As shown, in use, the base 11 is first initially aligned with the pre-drilled holes 31 at the four corners of the base 11 to fit the bogie's pre-installed mounting surface. The connecting seat 1 is then pushed, causing the elliptical insert 12 of the base 11 to insert into the elliptical slot 10 of the connecting seat 1, restricting the relative rotation between the base 11 and the connecting seat 1, quickly achieving precise pre-alignment without repeated calibration of the installation angle. Subsequently, the handwheel 22 is turned, causing the fixed rotating shaft 18 to rotate; the umbrella-shaped tooth 19 at the lower end of the rotating shaft 18 meshes with the umbrella-shaped tooth 17 on the rotating shaft 15, transmitting rotational torque to the rotating shaft 15. The rotating shaft 15 then causes the elliptical plate 13 at its end to rotate synchronously. When the elliptical plate 13 rotates to a position perpendicular to the elliptical insert 12 at ninety degrees, the rubber pad 14 on the end face of the elliptical plate 13 will tightly abut against the inner wall of the end of the elliptical slot 10, forming a rigid lock through surface contact, thus completing the core fixation of the base 11 and the connecting seat 1. The rubber pad 14 undergoes elastic deformation during the extrusion process, which fills the tiny installation gaps on the one hand and increases the friction of the contact surface on the other, thus initially resisting vibration and impact.

[0031] Subsequently, rotating the screw 26 causes the fixed plate 25 and the bottom tooth plate 21 to move downwards via threaded transmission, allowing the bottom tooth plate 21 to precisely engage with the top tooth plate 23, which is slidably sleeved on the rotating shaft 18. The top tooth plate 23 is slidably engaged with the limiting groove 27 of the rotating shaft 18 via a limiting block 24. After engagement, this firmly restricts the rotational freedom of the rotating shaft 18. Combined with the thread preload of the screw 26, this forms a secondary anti-loosening lock, preventing the elliptical plate 13 from rotating unexpectedly due to high-frequency vibrations of the train and ensuring the long-term stability of the locking structure.

[0032] A sealing ring 30 is provided at the connection between the elliptical insert rod 12 and the elliptical slot 10, which can effectively isolate foreign objects such as mud, rainwater, and salt spray in the track environment, prevent impurities from entering the locking structure, avoid rust and jamming of key transmission components such as the elliptical plate 13 and the rotating shaft 15, ensure the smoothness of locking and unlocking actions, and extend the service life of the overall structure. The connecting seat 1 is bidirectionally fixed to the fixing rod 33 through the lifting lugs 32 on both sides. The pin hole 34 of the lifting lugs 32 and the fixing rod 33 is used to hinge the two, adapting to the dynamic displacement during the operation of the bogie and avoiding stress concentration caused by rigid connection. The pin hole 36 of the fixing cylinder 35 at the end of the fixing rod 33 can be directly connected to the brake components to ensure stable transmission of braking force.

[0033] When it is necessary to replace the bearing head with a different specification, simply rotate the screw 26 in the reverse direction to move the bottom tooth plate 21 upward, disengaging it from the top tooth plate 23 and releasing the secondary anti-loosening mechanism. Then, rotate the handwheel 22 in the reverse direction to rotate the elliptical plate 13 to a parallel position with the elliptical insert 12 via the bevel gear transmission, releasing the lock. Finally, pull the base 11 outward, and the elliptical insert 12 will be pulled out along the elliptical slot 10, thus completing the disassembly of the base 11. Replacing the base 11 with a new specification only requires repeating the above pre-connection, locking, and anti-loosening process, which can greatly improve the efficiency of replacing multiple specifications.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A precision bogie brake bracket, comprising a connecting seat (1), wherein a base (11) is provided on one side of the connecting seat (1), characterized in that: An elliptical insert rod (12) is fixedly installed on one side of the base (11). A rotating shaft (15) is rotatably installed in the middle of the elliptical insert rod (12). An elliptical plate (13) is fixedly installed at one end of the rotating shaft (15). An installation groove (16) is opened in the middle of the base (11). A rotating shaft (18) is rotatably installed above the middle of the base (11). An umbrella-shaped tooth (19) is fixedly installed at the lower end of the rotating shaft (18). An umbrella-shaped tooth (17) is fixedly installed on the outer side of the middle of one end of the rotating shaft (15). A handwheel (22) is fixedly installed at the upper end of the rotating shaft (18). An elliptical slot (10) is opened on one side of the middle of the connecting seat (1). A rotating groove (101) is opened in the middle of the elliptical slot (10). A guide groove (29) is opened on one side of the middle of the connecting seat (1). A guide slider (28) is fixedly installed on one side of the middle of the elliptical insert rod (12).

2. The precision bogie brake bracket according to claim 1, characterized in that: Lifting lugs (32) are fixedly installed on both sides of the middle of the other end of the connecting seat (1), and a fixing rod (33) is provided in the middle of the two lifting lugs (32).

3. A precision bogie brake bracket according to claim 2, characterized in that: A pin hole (34) is provided at one end of the fixing rod (33) and in the middle of the two lugs (32), and multiple through holes (37) are evenly provided on the surface of the fixing rod (33).

4. A precision bogie brake bracket according to claim 2, characterized in that: A fixing cylinder (35) is fixedly installed at one end of the fixing rod (33), and a pin hole (36) is provided in the middle of the fixing cylinder (35).

5. A precision bogie brake bracket according to claim 1, characterized in that: A sealing ring (30) is provided on the outer side of the middle part of the connection between the elliptical insert (12) and the elliptical slot (10), and a reserved hole (31) is provided at each of the four corners of the middle part of the base (11).

6. A precision bogie brake bracket according to claim 1, characterized in that: The rotating groove (101) and the elliptical slot (10) are connected. When the elliptical plate (13) and the elliptical insert (12) are at a vertical angle, the elliptical plate (13) abuts against the end of the elliptical slot (10). A rubber pad (14) is attached to one end of the elliptical plate (13). The guide slider (28) and the guide groove (29) abut against each other.

7. A precision bogie brake bracket according to claim 6, characterized in that: The second umbrella tooth (19) and the first umbrella tooth (17) are both located in the middle of the mounting groove (16). The second umbrella tooth (19) and the first umbrella tooth (17) mesh with each other. One end of the rotating shaft (15) is rotatably mounted on one side of the mounting groove (16). A top tooth plate (23) is fixedly mounted on the outer side of the upper middle part of the base (11). A rotating groove (20) is opened on the outer side of the top tooth plate (23).

8. A precision bogie brake bracket according to claim 7, characterized in that: A top tooth plate (23) is slidably engaged on the outer side above the middle of the rotating shaft (18). Limiting grooves (27) are provided on both sides above the middle of the rotating shaft (18). Limiting blocks (24) are fixedly installed on both sides of the middle of the top tooth plate (23). The limiting blocks (24) and the limiting grooves (27) are slidably engaged. The top tooth plate (23) and the bottom tooth plate (21) are meshed. A fixing plate (25) is fixedly installed on one side of the bottom tooth plate (21). A screw (26) is threadedly connected to the middle of one end of the fixing plate (25). The lower end of the screw (26) is rotatably engaged in the middle of the guide groove (29).

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