Straddle-type monorail bogie
By introducing an interlocking structure of anti-derailment groove and anti-derailment bracket in straddle-type monorail bogies, combined with the limiting of anti-derailment lugs and lug grooves and multiple bolt connections, the problem of easy detachment of horizontal wheels and stabilizing wheels is solved, and the safety and reliability of bogies are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY NEW COMM INVESTMENT CO LTD (HEFEI)
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-09
AI Technical Summary
The existing straddle-type monorail bogies have horizontal wheel assemblies that lack anti-detachment structures or have poor anti-detachment effects, making them prone to falling off and affecting driving safety.
The system employs an interlocking structure of anti-detachment groove and anti-detachment bracket, along with anti-detachment lifting lugs and lifting lug grooves for limiting, stop positioning pins for reinforcement, and multiple bolt connections to ensure the stable installation of the horizontal and stabilizing wheels.
This significantly improves the safety and reliability of bogie operation, while also ensuring ease of installation and maintenance, and preventing the horizontal and stabilizing wheels from falling off in long-term high-frequency vibration environments.
Smart Images

Figure CN224335642U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bogie technology, specifically, a straddle-type monorail bogie. Background Technology
[0002] Existing straddle-type monorail bogies lack anti-detachment structures for their horizontal wheel assemblies, or their anti-detachment effect is poor, making them prone to falling off. The horizontal and stabilizing wheels of straddle-type monorail bogies are mounted on the bogie frame. Existing anti-detachment structures typically use bolts and nuts to fix the horizontal wheel assemblies and stabilizing wheels to the frame. Under prolonged and complex vibrations, these bolts are prone to loosening. Once detached, the horizontal and stabilizing wheels will come off the frame, posing a serious threat to driving safety.
[0003] Therefore, how to achieve the stability of horizontal and stabilizing wheels under long-term high-frequency vibration environments, while taking into account structural lightweighting and ease of installation, in order to solve the existing deficiencies and shortcomings, is the direction that those engaged in this industry urgently want to improve. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned problems by providing a straddle-type monorail bogie.
[0005] The technical solution of this utility model is: a straddle-type monorail bogie, the straddle-type monorail bogie includes a frame and horizontal wheels, the frame extends outward to form a plurality of horizontal wheel mounting seats, and the horizontal wheels are mounted on the horizontal wheel mounting seats through wheel axle assemblies;
[0006] The wheel and axle assembly includes a shaft portion and a mounting portion. The shaft portion is placed inside the horizontal wheel. An anti-detachment groove is provided on the mounting portion. A horizontal wheel anti-detachment bracket is fixed on the outside of the mounting portion. The horizontal wheel anti-detachment bracket includes a first bracket main rod. The first bracket main rod includes an embedding section and a fixing section. The embedding section and the fixing section are L-shaped. A plurality of first mounting holes are provided at both ends of the first bracket main rod. The embedding section is embedded in the anti-detachment groove. The horizontal wheel mounting seat is provided with a plurality of second mounting holes corresponding to the plurality of first mounting holes. The plurality of first mounting holes and the plurality of second mounting holes are all connected to a first nut by a first bolt.
[0007] As an improvement of this utility model embodiment: anti-detachment lifting lugs are provided on both sides of the mounting part, and first lifting lug grooves are provided on both sides of the horizontal wheel mounting seat, and the anti-detachment lifting lugs are all embedded in the first lifting lug grooves; an anti-detachment lifting lug groove is provided on the fixed section of the first bracket main rod, and the anti-detachment lifting lugs near the fixed section are embedded in the anti-detachment lifting lug grooves.
[0008] As an improvement of this utility model embodiment: the mounting part is provided with a first pin hole; the horizontal wheel mounting seat is provided with a second pin hole corresponding to the first pin hole; a first stop positioning pin is embedded between the first pin hole and the second pin hole.
[0009] As an improvement of this utility model embodiment: the mounting part is provided with a plurality of third mounting holes; the horizontal wheel mounting seat is provided with a plurality of fourth mounting holes corresponding to the plurality of third mounting holes, and the plurality of third mounting holes and the plurality of fourth mounting holes are all connected by a second bolt and a second nut.
[0010] As an improvement of this utility model embodiment: the straddle-type monorail bogie further includes a stabilizing wheel, the frame extends downward to form a plurality of stabilizing wheel mounting seats, and the stabilizing wheel is mounted on the stabilizing wheel mounting seats through a wheel axle assembly;
[0011] The shaft is placed inside the stabilizing wheel; a stabilizing wheel anti-detachment bracket is fixed on the outside of the mounting part. The stabilizing wheel anti-detachment bracket includes a second bracket main rod. Fixing plates are vertically arranged at both ends of the second bracket main rod. The fixing plates are provided with a plurality of fifth mounting holes. The second bracket main rod is embedded in the anti-detachment groove. The stabilizing wheel mounting seat is provided with a plurality of sixth mounting holes corresponding to the plurality of fifth mounting holes. The plurality of fifth mounting holes and the plurality of sixth mounting holes are all connected by a third bolt and a third nut.
[0012] As an improvement of this utility model embodiment: anti-detachment lugs are provided on both sides of the mounting part, and second lug grooves are provided on the inner walls of both sides of the stabilizing wheel mounting base, and the anti-detachment lugs are embedded in the second lug grooves.
[0013] As an improvement of this utility model embodiment: the mounting part is provided with a first pin hole; the stabilizing wheel mounting seat is provided with a third pin hole corresponding to the first pin hole; a second stop positioning pin is embedded between the first pin hole and the third pin hole.
[0014] As an improvement of this utility model embodiment: the mounting part is provided with a plurality of third mounting holes, and the stabilizing wheel mounting base is provided with a plurality of fourth mounting holes corresponding to the plurality of third mounting holes, and the plurality of third mounting holes and the plurality of fourth mounting holes are all connected by fourth bolts and fourth nuts.
[0015] As an improvement of this utility model embodiment: the first pin hole and / or the second pin hole are stepped holes.
[0016] As an improvement of this utility model embodiment: the first pin hole and / or the third pin hole are stepped holes.
[0017] The advantages of the straddle-type monorail bogie provided by this utility model are as follows: by setting the interlocking structure of anti-derailment groove and anti-derailment bracket, combined with the limiting of anti-derailment lug and lug groove, the reinforcement of stop positioning pin, and multiple bolt connections, the problem of easy loosening of existing horizontal wheels and stabilizing wheels that are only fixed by bolts and nuts is effectively solved, which greatly improves the safety and reliability of bogie operation. At the same time, the structural design takes into account the convenience of installation and maintenance. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the straddle-type monorail bogie described in this utility model;
[0019] Figure 2 This is an exploded view of the installation of the horizontal wheel 2 described in this utility model;
[0020] Figure 3 This is an exploded view of the installation of the stabilizing wheel 3 described in this utility model;
[0021] Figure 4 This is a schematic diagram of the wheel and axle assembly 4 described in this utility model;
[0022] Figure 5 This is a schematic diagram of the horizontal wheel mounting base 11 described in this utility model;
[0023] Figure 6 This is a schematic diagram of the stabilizing wheel mounting base 12 described in this utility model;
[0024] Figure 7 This is a schematic diagram of the horizontal wheel anti-detachment bracket 5 described in this utility model;
[0025] Figure 8 This is a schematic diagram of the anti-detachment bracket 6 for the stabilizing wheel described in this utility model.
[0026] Wherein: 1-Frame; 11-Horizontal wheel mounting base, 111-Second mounting hole, 112-First lifting lug groove, 113-Second pin hole, 114-Fourth mounting hole; 12-Stabilizing wheel mounting base, 121-Sixth mounting hole, 122-Second lifting lug groove, 123-Third pin hole, 124-Seventh mounting hole; 2-Horizontal wheel; 3-Stabilizing wheel; 4-Wheel axle assembly, 41-Shaft, 42-Mounting part, 421-Anti-detachment groove, 422-Anti-detachment lifting lug, 423-First pin hole, 42 4-Third mounting hole; 5-Horizontal wheel anti-detachment bracket; 51-First bracket main rod; 52-First mounting hole; 53-Anti-detachment lifting lug groove; 6-Stabilizing wheel anti-detachment bracket; 61-Second bracket main rod; 62-Fixing plate; 63-Fifth mounting hole; 7-First stop positioning pin; 8-Second stop positioning pin; A1-First bolt; A2-First nut; B1-Second bolt; B2-Second nut; C1-Third bolt; C2-Third nut; D1-Fourth bolt; D2-Fourth nut. Detailed Implementation
[0027] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.
[0028] If the description of this utility model involves directions (e.g., up, down, left, right, front, back, outside, inside, etc.), then the directions involved need to be defined.
[0029] The scope of embodiments described herein includes the entire scope of the claims and all available equivalents thereof. Throughout this document, the terms “first,” “second,” etc., are used only to distinguish one element from another without requiring or implying any actual relationship or order between the elements. Indeed, a first element can also be referred to as a second element, and vice versa. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, apparatus, or device. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the structure, apparatus, or device that includes said element.
[0030] This utility model provides a straddle-type monorail bogie, such as Figures 1-8 As shown,
[0031] The straddle-type monorail bogie includes a frame 1 and horizontal wheels 2. The frame 1 extends outward to form a plurality of horizontal wheel mounting seats 11. The horizontal wheels 2 are mounted on the horizontal wheel mounting seats 11 via wheel axle assemblies 4.
[0032] The wheel and axle assembly 4 includes a shaft portion 41 and a mounting portion 42. The shaft portion 41 is placed inside the horizontal wheel 2. An anti-detachment groove 421 is provided on the mounting portion 42. A horizontal wheel anti-detachment bracket 5 is fixed on the outside of the mounting portion 42. The horizontal wheel anti-detachment bracket 5 includes a first bracket main rod 51. The first bracket main rod 51 includes an embedding section and a fixing section. The embedding section and the fixing section are L-shaped. A plurality of first mounting holes 52 are provided at both ends of the first bracket main rod 51. The embedding section is embedded in the anti-detachment groove 421. The horizontal wheel mounting seat 11 is provided with a plurality of second mounting holes 111 corresponding to the plurality of first mounting holes 52. The plurality of first mounting holes 52 and the plurality of second mounting holes 111 are all connected to a first nut A2 by a first bolt A1. Understandably, the L-shaped first bracket main rod 51 is embedded in the anti-detachment groove 421, which can restrict the up and down movement of the wheel axle assembly 4. Together with the fastening effect of the first bolt A1 and the first nut A2, it provides a basic anti-detachment fixation for the horizontal wheel 2, preventing it from easily detaching from the horizontal wheel mounting seat 11 during vibration.
[0033] In this embodiment, anti-detachment lugs 422 are provided on both sides of the mounting part 42, and first lug grooves 112 are provided on both sides of the horizontal wheel mounting base 11. The anti-detachment lugs 422 are all embedded in the first lug grooves 112. An anti-detachment lug groove 53 is provided on the fixed section of the first bracket main rod 51, and the anti-detachment lugs 422 near the fixed section are embedded in the anti-detachment lug groove 53. Here, the fitting structure of the anti-detachment lugs and lug grooves can restrict the movement of the mounting part 42, and the horizontal wheel anti-detachment bracket 5 constrains the mounting part 42, greatly improving the stability of the horizontal wheel 2 installation and reducing the risk of displacement caused by vibration.
[0034] In this embodiment, the mounting part 42 is provided with a first pin hole 423; the horizontal wheel mounting base 11 is provided with a second pin hole 113 corresponding to the first pin hole 423; a first stop positioning pin 7 is embedded between the first pin hole 423 and the second pin hole 113. Here, the first pin hole 423 and / or the second pin hole 113 are stepped holes. Preferably, both the first pin hole 423 and the second pin hole 113 are stepped holes. During installation, the first stop positioning pin 7 is inserted between the first pin hole 423 and the second pin hole 113. It can be understood that the first stop positioning pin 7, by embedding into the corresponding pin hole, achieves precise positioning of the mounting part 42 and the horizontal wheel mounting base 11, avoiding relative misalignment between the two during assembly and operation; the stepped hole can limit the first stop positioning pin 7, preventing it from loosening during vibration, further enhancing the positioning effect.
[0035] In this embodiment, the mounting part 42 is provided with a plurality of third mounting holes 424; the horizontal wheel mounting base 11 is provided with a plurality of fourth mounting holes 114 corresponding to the plurality of third mounting holes 424, and the plurality of third mounting holes 424 and the plurality of fourth mounting holes 114 are all connected by a second bolt B1 and a second nut B2. Here, by increasing the fastening points, the load generated by the horizontal wheel 2 during operation can be distributed, avoiding excessive force on a single connection point that could lead to loosening, thereby improving the overall connection strength.
[0036] In this embodiment, the straddle-type monorail bogie also includes a stabilizing wheel 3, and the frame extends downward to form a plurality of stabilizing wheel mounting seats 12. The stabilizing wheel 3 is mounted on the stabilizing wheel mounting seats 12 through a wheel axle assembly 4.
[0037] The shaft portion 41 is placed inside the stabilizing wheel 3. A stabilizing wheel anti-detachment bracket 6 is fixed to the outside of the mounting portion 42. The stabilizing wheel anti-detachment bracket 6 includes a second bracket main rod 61. Fixing plates 62 are vertically arranged at both ends of the second bracket main rod 61. The fixing plates are provided with a plurality of fifth mounting holes 63. The second bracket main rod 61 is embedded in the anti-detachment groove 421. The stabilizing wheel mounting base 12 is provided with a plurality of sixth mounting holes 121 corresponding to the plurality of fifth mounting holes 63. The plurality of fifth mounting holes 63 and the plurality of sixth mounting holes 121 are all connected by a third bolt C1 and a third nut C2. It can be understood that the second bracket main rod 61 embedded in the anti-detachment groove 421 can restrict the movement of the wheel axle assembly 4. The fixing plates 62 at both ends are connected to the stabilizing wheel mounting base 12 by the third bolt C1 and the third nut C2, providing a reliable basic anti-detachment guarantee.
[0038] In this embodiment, anti-detachment lugs 422 are provided on both sides of the mounting portion 42, and second lug grooves 122 are correspondingly provided on the inner walls of both sides of the stabilizing wheel mounting base 12. The anti-detachment lugs 422 are embedded in the second lug grooves 122. It can be understood that the engagement of the anti-detachment lugs 422 and the second lug grooves 122 forms a lateral limit on the mounting portion 42 from both sides. Combined with the constraint of the inner wall of the stabilizing wheel mounting base 12, it effectively prevents the stabilizing wheel 3 from shifting due to lateral forces during operation.
[0039] In this embodiment, the mounting part 42 is provided with a first pin hole 423; the stabilizing wheel mounting base 12 is provided with a third pin hole 123 corresponding to the first pin hole 423; a second stop positioning pin 8 is embedded between the first pin hole 423 and the third pin hole 123. Here, the first pin hole 423 and / or the third pin hole 123 are stepped holes. Preferably, both the first pin hole 423 and the third pin hole 123 are stepped holes. During installation, the second stop positioning pin 8 is inserted between the first pin hole 423 and the third pin hole 123. It can be understood that the function of the second stop positioning pin 8 is similar to that of the first stop positioning pin 7. By embedding it into the corresponding stepped hole, it achieves positioning and stopping of the stabilizing wheel 3 during installation, preventing relative displacement between the stabilizing wheel 3 and the stabilizing wheel mounting base 12. The stepped hole can prevent the positioning pin from loosening and ensure the durability of the positioning.
[0040] In this embodiment, the mounting part 42 is provided with a plurality of third mounting holes 424, and the stabilizing wheel mounting base 12 is provided with a plurality of seventh mounting holes 124 corresponding to the plurality of third mounting holes 424. All of the plurality of third mounting holes 424 and the plurality of seventh mounting holes 124 are connected by a fourth bolt D1 and a fourth nut D2. It can be understood that by increasing the fastening points to distribute the load during the operation of the stabilizing wheel 3, and cooperating with the stabilizing wheel anti-detachment bracket 6 to form multiple fastenings, the overall strength and vibration resistance of the stabilizing wheel 3 installation are improved, preventing it from loosening during long-term use.
[0041] The working principle of this utility model is as follows: Through the coordinated action of multiple structures, the horizontal wheel 2 and the stabilizing wheel 3 are securely installed and prevented from detaching. For the horizontal wheel 2, the shaft portion 41 of the wheel axle assembly 4 is placed inside the horizontal wheel 2, and the mounting portion 42 is connected to the horizontal wheel mounting base 11 via the horizontal wheel anti-detachment bracket 5. The first support main rod 51 of the type is embedded in the anti-detachment groove 421 of the mounting part 42. The fixed section is fixed to the horizontal wheel mounting seat 11 by the first bolt A1 and the first nut A2 to form a preliminary anti-detachment fixation. The anti-detachment lifting lugs 422 on both sides of the mounting part 42 are embedded in the first lifting lug groove 112 of the horizontal wheel mounting seat 11. The anti-detachment lifting lug 422 near the first end of the first support main rod 51 is embedded in the anti-detachment lifting lug groove 53 of the support, further restricting the lateral and longitudinal movement of the mounting part 42. The first stop positioning pin 7 is embedded in the pin hole of the mounting part 42 and the horizontal wheel mounting seat 11, which plays a role in precise positioning and stopping, avoiding relative displacement. The mounting part 42 and the horizontal wheel mounting seat 11 are connected by the second bolt B1 and the second nut B2 to enhance the overall connection strength. For the stabilizing wheel 3, the axle part 4 of the wheel axle assembly 4 The second support main rod 61 of the stabilizer wheel anti-detachment bracket 6 is embedded in the anti-detachment groove 421 of the mounting part 42. The fixing plates 62 at both ends are fixed to the stabilizer wheel mounting seat 12 by the third bolt C1 and the third nut C2, thus achieving the initial fixation of the stabilizer wheel 3. The anti-detachment lugs 422 on both sides of the mounting part 42 are embedded in the second lug groove 122 of the stabilizer wheel mounting seat 12, restricting the movement of the mounting part 42. The second stop positioning pin 8 is embedded in the pin hole of the mounting part 42 and the stabilizer wheel mounting seat 12, achieving positioning and stopping. The mounting part 42 and the stabilizer wheel mounting seat 12 are connected by the fourth bolt D1 and the fourth nut D2, improving the connection stability. These structures work together to effectively prevent the horizontal wheel 2 and the stabilizer wheel 3 from falling off the frame 1 in the complex vibration environment of vehicle operation, ensuring driving safety.
[0042] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles of the embodiments, their practical application, or technological improvements in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A straddle-type monorail bogie, characterized in that, The straddle-type monorail bogie includes a frame (1) and horizontal wheels (2). The frame (1) extends outward to form several horizontal wheel mounting seats (11). The horizontal wheels (2) are mounted on the horizontal wheel mounting seats (11) through wheel axle assemblies (4). The wheel axle assembly (4) includes a shaft portion (41) and a mounting portion (42). The shaft portion (41) is placed inside the horizontal wheel (2). An anti-detachment groove (421) is provided on the mounting portion (42). A horizontal wheel anti-detachment bracket (5) is fixed on the outside of the mounting portion (42). The horizontal wheel anti-detachment bracket (5) includes a first bracket main rod (51). The first bracket main rod (51) includes an embedding section and a fixing section. The embedding section and the fixing section are L-shaped. Several first mounting holes (52) are provided at both ends of the first bracket main rod (51). The embedding section is embedded in the anti-detachment groove (421). The horizontal wheel mounting seat (11) is provided with several second mounting holes (111) corresponding to several first mounting holes (52). Several first mounting holes (52) and several second mounting holes (111) are connected by a first bolt (A1) and a first nut (A2).
2. The straddle-type monorail bogie according to claim 1, characterized in that, The mounting part (42) is provided with anti-detachment lugs (422) on both sides, and the horizontal wheel mounting base (11) is provided with first lug grooves (112) on both sides. The anti-detachment lugs (422) are all embedded in the first lug grooves (112). The first support main rod (51) is provided with an anti-detachment lug groove (53) on the fixed section, and the anti-detachment lugs (422) near the fixed section are embedded in the anti-detachment lug grooves (53).
3. The straddle-type monorail bogie according to claim 1, characterized in that, The mounting part (42) is provided with a first pin hole (423); the horizontal wheel mounting base (11) is provided with a second pin hole (113) corresponding to the first pin hole (423); a first stop positioning pin (7) is embedded between the first pin hole (423) and the second pin hole (113).
4. The straddle-type monorail bogie according to claim 1, characterized in that, The mounting part (42) is provided with a plurality of third mounting holes (424); the horizontal wheel mounting base (11) is provided with a plurality of fourth mounting holes (114) corresponding to the plurality of third mounting holes (424), and the plurality of third mounting holes (424) and the plurality of fourth mounting holes (114) are all connected by a second bolt (B1) and a second nut (B2).
5. The straddle-type monorail bogie according to claim 1, characterized in that, The straddle-type monorail bogie also includes a stabilizing wheel (3), and the frame extends downward to form a plurality of stabilizing wheel mounting seats (12). The stabilizing wheel (3) is mounted on the stabilizing wheel mounting seats (12) through a wheel axle assembly (4). The shaft (41) is placed inside the stabilizing wheel (3); a stabilizing wheel anti-detachment bracket (6) is fixed on the outside of the mounting part (42). The stabilizing wheel anti-detachment bracket (6) includes a second bracket main rod (61). Fixing plates (62) are vertically arranged at both ends of the second bracket main rod (61). A plurality of fifth mounting holes (63) are provided on the fixing plates. The second bracket main rod (61) is embedded in the anti-detachment groove (421). The stabilizing wheel mounting seat (12) is provided with a plurality of sixth mounting holes (121) corresponding to the plurality of fifth mounting holes (63). The plurality of fifth mounting holes (63) and the plurality of sixth mounting holes (121) are all connected by a third bolt (C1) and a third nut (C2).
6. The straddle-type monorail bogie according to claim 5, characterized in that, The mounting part (42) is provided with anti-detachment lugs (422) on both sides, and the inner walls of the stabilizing wheel mounting base (12) are provided with second lug grooves (122) on both sides, and the anti-detachment lugs (422) are embedded in the second lug grooves (122).
7. The straddle-type monorail bogie according to claim 5, characterized in that, The mounting part (42) is provided with a first pin hole (423); the stabilizing wheel mounting base (12) is provided with a third pin hole (123) corresponding to the first pin hole (423); a second stop positioning pin (8) is embedded between the first pin hole (423) and the third pin hole (123).
8. The straddle-type monorail bogie according to claim 5, characterized in that, The mounting part (42) is provided with a plurality of third mounting holes (424), and the stabilizing wheel mounting base (12) is provided with a plurality of seventh mounting holes (124) corresponding to the plurality of third mounting holes (424). The plurality of third mounting holes (424) and the plurality of seventh mounting holes (124) are all connected by a fourth bolt (D1) and a fourth nut (D2).
9. The straddle-type monorail bogie according to claim 3, characterized in that, The first pin hole (423) and / or the second pin hole (113) are stepped holes.
10. The straddle-type monorail bogie according to claim 7, characterized in that, The first pin hole (423) and / or the third pin hole (123) are stepped holes.