Guide wheel bidirectional adjustable elastic device suitable for straddle type monorail bogie

Abstract

The elastic device comprises installation rods rotationally arranged at the four corners of a bogie frame, the outer ends of the installation rods are used for being connected with guide wheel assemblies, and the inner ends of the installation rods are transversely supported on the bogie frame through rubber spring assemblies. The rubber spring assembly comprises a first metal base, a second metal base and a rubber spring clamped between the first metal base and the second metal base, the adjusting bolt penetrates through the mounting rod and the second metal base and then is screwed into the first metal base, and a gap is formed between the first metal base and the second metal base; the compression amount of the rubber spring assembly is adjusted by adjusting the screwing-in depth of the bolt. According to the bidirectional adjustable guide wheel elastic device, a gap between a guide wheel and a track beam can be rapidly adjusted, running abrasion of a guide tire can be reduced, pre-pressure of the tire can be conveniently adjusted on site, and in addition, vibration and impact can be attenuated by means of a rubber spring assembly when a vehicle runs.

Description

Technical Field

[0001] The invention relates to the technical field of bogies, in particular to a bidirectionally adjustable elastic device suitable for guide wheels of straddle-type monorail bogies. Background Art

[0002] As an efficient urban rail transit mode, the straddle-type monorail system has particularly complex structure and design requirements. In the straddle-type monorail system, the design and use of guide wheels is one of the key factors to ensure the safe and smooth operation of the train.

[0003] The basic function of the guide wheel is to maintain the correct connection between the train and the track and ensure the stable guidance of the train on the track. A set of guide wheels is usually installed at the four corners of each bogie. These wheels balance the contact force of the track beam through the deformation elastic force of their tire pressure, thereby achieving precise guidance function.

[0004] The structure of the guide wheel is mainly composed of guide tires, rims and fasteners. The guide tires are usually made of highly elastic materials so that they can produce necessary deformation when contacting the track. This deformation can help absorb vibrations and impacts during driving and provide a smoother riding experience. The rim, as the core component connecting the tire and the bogie, needs to have high strength and good durability to support the weight and operating pressure of the tire. The fasteners ensure the close connection between the rim and the tire to prevent the tire from falling off during high-speed operation.

[0005] However, the pre-compression deformation force of the guide tire poses certain challenges to the replacement work. Since the guide wheel assembly is heavy and the installation space is limited, it is difficult to remove the entire guide wheel assembly from the bogie without external force. In addition, the installation position of the guide wheel is usually high, and the operator needs to use special mechanical equipment to lift it, which not only increases the complexity of the operation, but also increases the safety risks during the maintenance process.

[0006] At present, the guide wheel assembly for straddle-type monorail bogies is mostly installed in a fixed manner. How to improve the operational adaptability of the guide tires, reduce operational wear, and simplify the difficulty of guide tire replacement operations has become an important technical issue that needs to be urgently resolved by technical personnel in this field.

[0007] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0008] In view of the problems in the related technology, the present invention proposes a bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie, a bogie and a bidirectional adjustment method for guide wheels thereof, so as to overcome the above-mentioned technical problems existing in the existing related technology.

[0009] To this end, the specific technical solution adopted by the present invention is as follows: According to one aspect of the present invention, there is provided a bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie, comprising mounting rods rotatably arranged at the four corners of the bogie frame, the outer ends of the mounting rods being used to connect the guide wheels, the inner ends of the mounting rods being laterally supported on the bogie frame via a rubber spring assembly, the rubber spring assembly comprising a first metal base, a second metal base and a rubber spring clamped therebetween, an adjusting bolt passing through the mounting rod and the second metal base and then being screwed into the first metal base, a gap being formed between the first metal base and the second metal base, and the compression of the rubber spring assembly being adjusted by the screwing depth of the adjusting bolt.

[0010] Furthermore, in order to attenuate vibration and impact with the help of the rubber spring assembly in the bidirectionally adjustable elastic device and improve the running comfort of the vehicle, when the compression of the rubber spring assembly exceeds a certain amount, a gap is formed between the guide wheel and the track beam by utilizing the lever effect, and the pre-compression amount of the guide wheel is zero. At this time, the guide wheel mounting bolts can be removed directly without the need for external force; under the action of the positioning pin shaft, the mounting rod is limited to limit the up and down nodding and flipping of the mounting rod, and positioning pin shafts matching the mounting rod 601 are arranged around the bottom end of the bogie frame; a vertically arranged middle mounting hole is provided in the middle of the mounting rod, and the middle mounting hole is provided in the middle of the mounting rod. A rotating pair is formed between the hole and the locating pin shaft through a friction sleeve to realize the rotation between the mounting rod and the bogie frame. The bogie frame is provided with a mounting seat corresponding to the rubber spring assembly. The first metal base is against the mounting seat. The first metal base and the mounting seat are positioned by a positioning structure. The positioning structure includes a positioning platform and a positioning groove respectively arranged on the first metal base and the mounting seat. The outer side of the second metal base is fixed to the mounting rod by fixing bolts. The first metal base and the second metal base have a middle protrusion. The rubber spring sleeve is arranged outside the middle protrusion, and a gap is formed between the middle protrusion of the first metal base and the middle protrusion of the second metal base.

[0011] Furthermore, in order to connect through fasteners, loosen the guide wheel fasteners, tighten the adjusting bolts, and compress the height of the rubber spring assembly, so that the guide wheel assembly can be naturally lowered. When the guide wheel needs to be installed again, the operations can be performed in the reverse order. The guide wheel assembly includes a guide wheel and a guide wheel axle box. The outer end of the mounting rod is connected to the guide wheel through the guide wheel axle box, and the guide wheel is against the track beam to achieve guidance.

[0012] According to another aspect of the present invention, there is also provided a straddle-type monorail bogie having a bogie frame and also comprising a bidirectionally adjustable elastic device for guide wheels.

[0013] Furthermore, in order to ensure the stable installation of the drive unit, the bogie includes a running wheel component falling on the track beam and a stabilizing wheel component located on both sides of the track beam. The running wheel component is driven by the drive unit. The bogie also includes a motor mounting hole, and the drive unit is installed in the motor mounting hole.

[0014] According to another aspect of the present invention, a guide wheel bidirectional adjustment method applicable to a straddle-type monorail bogie is provided, and the guide wheel bidirectional adjustment method comprises: A. By tightening the adjusting bolt (603) to compress the rubber spring (6022), the inner end of the mounting rod (601) moves toward the track beam (1), and under the action of the lever, the outer end of the mounting rod (601) moves away from the track beam (1), the pre-compression amount of the guide wheel (702) decreases, and the guide wheel (702) provides a smaller lateral force; when the first metal base (6021) and the second metal base (6023) are against each other, the gap (6024) is eliminated, and a gap is formed between the guide wheel (702) and the track beam (1), the pre-compression amount of the guide wheel (702) is zero, and the mounting bolts of the guide wheel (702) can be removed; B. By loosening the adjusting bolt (603) to release the rubber spring (6022), the inner end of the mounting rod (601) moves away from the track beam (1). Under the action of the lever, the outer end of the mounting rod (601) moves toward the track beam, and the guide wheel (702) is closer to the track beam (1). The pre-compression amount of the guide wheel (702) increases, and the guide wheel (702) provides a greater lateral force. When the preset reasonable force value is reached, the vehicle operation safety and curve passing ability can be guaranteed.

[0015] The beneficial effects of the present invention are: 1. The bidirectionally adjustable guide wheel elastic device of the present invention can quickly increase the gap between the guide wheel and the track beam, release the deformation elastic force of the guide tire, and after the guide wheel assembly mounting fasteners are loosened, the guide wheel can be removed by falling down by its own weight, thereby improving the impact resistance of the guide wheel, helping to reduce the running wear of the guide tire, and facilitating on-site adjustment of the tire pre-pressure.

[0016] 2. In the present invention, when the rubber spring assembly is compressed, the guide wheel is moved away from the track beam by utilizing the lever effect, the pre-compression of the guide wheel becomes smaller, and the guide wheel provides a smaller lateral force. When the rubber spring compression is released, the guide wheel is moved closer to the track beam by utilizing the lever effect, the pre-compression of the guide wheel becomes larger, and the guide wheel provides a larger lateral force. The lateral force provided by the guide wheel is adjusted to achieve a reasonable force value required for operation, which helps to ensure the safety of vehicle operation and the ability to pass curves. When the guide wheel runs on the side of the track beam, vibration and impact will be generated.

[0017] 3. With the help of the rubber spring assembly in the bidirectional adjustable elastic device, vibration and impact can be attenuated to improve the running comfort of the vehicle. When the compression of the rubber spring assembly exceeds a certain amount, a gap is formed between the guide wheel and the track beam by utilizing the lever effect, and the pre-compression amount of the guide wheel is zero. At this time, the guide wheel mounting bolts can be removed directly without the help of external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 2 is a schematic structural diagram of a bidirectionally adjustable elastic device for guide wheels applicable to a straddle-type monorail bogie according to an embodiment of the present invention; Figure 2 Schematic diagram of the structure of a bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie according to an embodiment of the present invention in a specific application Figure 3 It is a three-dimensional assembly diagram of a bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie in a specific application according to an embodiment of the present invention; Figure 4 It is a structural schematic diagram of a rubber spring assembly in a bidirectionally adjustable elastic device for a guide wheel of a straddle-type monorail bogie according to an embodiment of the present invention; Figure 5 It is a partial structural schematic diagram of a bidirectionally adjustable elastic device for guide wheels applicable to a straddle-type monorail bogie according to an embodiment of the present invention; Figure 6 is a structural schematic diagram of a straddle-type monorail bogie according to an embodiment of the present invention; Figure 7 The present invention is a flowchart of a method for bidirectionally adjusting guide wheels of a straddle-type monorail bogie according to an embodiment of the present invention.

[0020] In the figure: 1. Track beam; 2. Bogie frame; 201. Locating pin shaft; 202. Mounting seat; 203. Motor mounting hole; 3. Drive unit; 4. Running wheel assembly; 5. Stabilizing wheel assembly; 6. Bidirectional adjustable elastic device; 601. Mounting rod; 602. Rubber spring assembly; 6021. First metal base; 6022. Rubber spring; 6023. Second metal base; 6024. Gap; 6025. Fixing bolt; 603. Adjusting bolt; 604. Friction sleeve; 7. Guide wheel assembly; 701. Guide wheel axle box; 702. Guide wheel. DETAILED DESCRIPTION

[0021] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] According to an embodiment of the present invention, a guide wheel bidirectionally adjustable elastic device applicable to a straddle-type monorail bogie, a bogie and a guide wheel bidirectional adjustment method thereof are provided.

[0023] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1-Figure 5 As shown, according to one embodiment of the present invention, a bidirectionally adjustable elastic device 6 for a guide wheel of a straddle-type monorail bogie is provided, comprising a mounting rod 601 rotatably arranged at four corners of a bogie frame 2, the outer end of the mounting rod 601 being used to connect the guide wheel assembly 7, the inner end of the mounting rod 601 being laterally supported on the bogie frame 2 through a rubber spring assembly 602, the rubber spring assembly 602 comprising a first metal base 6021, a second metal base 6023 and a rubber spring 6022 clamped therebetween, an adjusting bolt 603 passing through the mounting rod 601 and the second metal base 6023 and then being screwed into the first metal base 6021, a gap 6024 (the maximum value of the gap 6024 is the adjustment stroke) between the first metal base 6021 and the second metal base 6023, and the compression amount of the rubber spring assembly 602 is adjusted by the screwing depth of the adjusting bolt 603.

[0024] With the help of the above technical scheme, the present invention can attenuate vibration and impact with the help of the rubber spring component 602 in the bidirectionally adjustable elastic device, thereby improving the running comfort of the vehicle. When the compression of the rubber spring component 602 exceeds a certain amount, a gap is formed between the guide wheel 702 and the track beam 1 by utilizing the lever effect, and the pre-compression amount of the guide wheel 702 is zero. At this time, the guide wheel 702 can be directly removed by removing the mounting bolts without the need for external force. Under the action of the positioning pin shaft 201, the mounting rod 601 is limited to limit the nodding and flipping of the mounting rod 601.

[0025] In one embodiment, for the above-mentioned bogie frame 2, positioning pin shafts 201 cooperating with the mounting rod 601 are arranged around the bottom end of the bogie frame 2; a vertically arranged middle mounting hole is provided in the middle of the mounting rod 601, and a rotating pair is formed between the middle mounting hole and the positioning pin shaft 201 through a friction sleeve 604 to realize the rotation between the mounting rod 601 and the bogie frame 2, and the bogie frame 2 is provided with a mounting seat 202 corresponding to the rubber spring assembly 602, a first metal base 6021 is against the mounting seat 202, and the first metal base 6021 and the mounting seat 202 are positioned by a positioning structure, and the positioning structure includes a positioning platform and a positioning groove respectively arranged on the first metal base 6021 and the mounting seat 202, and the outer side of the second metal base 6023 is connected to the mounting rod 6 by a fixing bolt 6025. 01 is fixed, the first metal base 6021 and the second metal base 6023 have a middle protrusion, and the rubber spring 6022 is sleeved outside the middle protrusion. A gap 6024 is formed between the middle protrusion of the first metal base 6021 and the middle protrusion of the second metal base 6023, so that with the help of the rubber spring component 602 in the two-way adjustable elastic device, vibration and impact can be attenuated to improve the running comfort of the vehicle. When the compression of the rubber spring component 602 exceeds a certain amount, a gap is formed between the guide wheel 702 and the track beam 1 by utilizing the lever effect, and the pre-compression amount of the guide wheel 702 is zero. At this time, the guide wheel 702 mounting bolts can be removed and it can be directly removed without the help of external force; under the action of the positioning pin shaft 201, the mounting rod 601 is limited to limit the up and down nodding and flipping of the mounting rod 601.

[0026] In one embodiment, for the above-mentioned guide wheel assembly 7, the guide wheel assembly 7 includes a guide wheel 702 and a guide wheel axle box 701. The outer end of the mounting rod 601 is connected to the guide wheel 702 through the guide wheel axle box 701. The guide wheel 702 is against the track beam 1 to achieve guidance, and is connected through fasteners. The guide wheel 702 fasteners are loosened, the adjusting bolts 603 are tightened, and the height of the rubber spring assembly 602 is compressed, so that the guide wheel assembly 7 can be naturally lowered. When the guide wheel needs to be installed again, the operations can be performed in the reverse order.

[0027] According to another embodiment of the present invention, Figure 6 As shown, a straddle-type monorail bogie is also provided, which has a bogie frame 2 and also includes a bidirectionally adjustable elastic device for guide wheels.

[0028] In one embodiment, for the above-mentioned bogie, the bogie includes a running wheel assembly 4 falling on the track beam 1 and a stabilizing wheel assembly 5 located on both sides of the track beam 1. The running wheel assembly 4 is driven by a drive unit 3. The bogie also includes a motor mounting hole 203, and the drive unit 3 is installed in the motor mounting hole 203, thereby ensuring the stable installation of the drive unit 3.

[0029] According to another embodiment of the present invention, Figure 7 As shown, a guide wheel bidirectional adjustment method applicable to a straddle-type monorail bogie is also provided, and the guide wheel bidirectional adjustment method comprises the following steps: S1. The rubber spring 6022 is compressed by tightening the adjusting bolt 603. The rubber spring assembly 602 is compressed. By leveraging the effect of the lever, the guide wheel 702 moves away from the track beam 1. The pre-compression amount of the guide wheel 702 becomes smaller, and the guide wheel 702 provides a smaller lateral force. S2. The rubber spring 6022 is released by loosening the adjusting bolt 603. The rubber spring 6022 releases the compression amount. By leveraging the effect of the lever, the guide wheel 702 is closer to the track beam 1. The pre-compression amount of the guide wheel 702 increases. The guide wheel 702 provides a greater lateral force. S3. Adjust the lateral force provided by the guide wheel 702 to reach a reasonable force value preset for operation, so as to ensure the vehicle's operation safety and curve passing ability; S4, when the guide wheel 702 runs on the side of the track beam 1, vibration and impact will be generated, and the vibration and impact will be attenuated by the rubber spring assembly 602; S5, tighten the adjustment bolt 603, when the first metal base 6021 and the second metal base 6023 are against each other, the adjustment is maximized, the gap 6024 is eliminated, a gap is formed between the guide wheel 702 and the track beam 1, the pre-compression amount of the guide wheel 702 is zero, and the installation bolts of the guide wheel 702 are removed. Of course, by setting the structure of the first metal base 6021 and the second metal base 6023, the pre-compression amount of the guide wheel 702 can also be reduced to zero when the gap 6024 is not eliminated.

[0030] In summary, with the aid of the above technical solution of the present invention, the bidirectionally adjustable guide wheel elastic device of the present invention can quickly increase the gap between the guide wheel 702 and the track beam, release the deformation elastic force of the guide wheel 702 tire, and after the installation fasteners of the guide wheel assembly 7 are loosened, the guide wheel assembly 7 can be taken out by falling down by its own weight, thereby improving the impact resistance of the guide wheel 702, helping to reduce the wear of the guide tire during operation, and facilitating on-site adjustment of the tire preload. In the present invention, when the rubber spring assembly 602 is compressed, the guide wheel 702 is moved away from the track beam 1 by utilizing the lever effect, the pre-compression amount of the guide wheel 702 becomes smaller, and the guide wheel 702 provides a smaller lateral force. When the compression amount of the rubber spring 6022 is released, the guide wheel 702 is moved closer by utilizing the lever effect. Track beam 1, the pre-compression amount of guide wheel 702 becomes larger, and guide wheel 702 provides a larger lateral force. The lateral force provided by guide wheel 702 is adjusted to achieve a reasonable force value required for operation, which helps to ensure the safety of vehicle operation and the ability to pass curves. When guide wheel 702 runs on the side of track beam 1, it will generate vibration and impact. With the help of rubber spring assembly 602 in the two-way adjustable elastic device, vibration and impact can be attenuated to improve the comfort of vehicle operation. When the compression of rubber spring assembly 602 exceeds a certain amount, a gap is formed between guide wheel 702 and track beam 1 by lever effect, and the pre-compression amount of guide wheel 702 is zero. At this time, remove the mounting bolts of guide wheel 702 and take it off directly without the help of external force.

[0031] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie, characterized in that: The invention comprises a mounting rod (601) rotatably arranged at four corners of a bogie frame (2); the outer end of the mounting rod (601) is used to connect a guide wheel assembly (7); the inner end of the mounting rod (601) is laterally supported on the bogie frame (2) through a rubber spring assembly (602); the rubber spring assembly (602) comprises a first metal base (6021), a second metal base (6023) and a rubber spring (6022) clamped therebetween; an adjusting bolt (603) passes through the mounting rod (601) and the second metal base (6023) and is screwed into the first metal base (6021); a gap (6024) is formed between the first metal base (6021) and the second metal base (6023); and the compression amount of the rubber spring assembly (602) is adjusted by the screwing depth of the adjusting bolt (603).

2. A bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 1, characterized in that: Positioning pins (201) matching with the mounting rod (601) are arranged around the bottom end of the bogie frame (2); a central mounting hole arranged vertically is provided in the middle of the mounting rod (601); a rotation pair is formed between the central mounting hole and the positioning pin (201) via a friction sleeve (604), thereby realizing rotation between the mounting rod (601) and the bogie frame (2).

3. The bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 2, characterized in that: The bogie frame (2) is provided with a mounting seat (202) corresponding to the rubber spring assembly (602), the first metal base (6021) abuts against the mounting seat (202), and the first metal base (6021) and the mounting seat (202) are positioned via a positioning structure.

4. The bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 3, characterized in that: The positioning structure comprises a positioning platform and a positioning groove which are respectively arranged on the first metal base (6021) and the mounting seat (202).

5. The bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 4, characterized in that: The outer side of the second metal base (6023) is fixed to the mounting rod (601) via a fixing bolt (6025).

6. The bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 5, characterized in that: The first metal base (6021) and the second metal base (6023) have a central protrusion, the rubber spring (6022) is sleeved outside the central protrusion, and the gap (6024) is formed between the central protrusion of the first metal base (6021) and the central protrusion of the second metal base (6023).

7. The bidirectionally adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 6, characterized in that: The guide wheel assembly (7) comprises a guide wheel (702) and a guide wheel axle box (701); the outer end of the mounting rod (601) is connected to the guide wheel (702) via the guide wheel axle box (701); and the guide wheel (702) abuts against the track beam (1) to achieve guidance.

8. A straddle-type monorail bogie having a bogie frame (2), characterized in that: It also includes a bidirectionally adjustable elastic device for the guide wheel as described in any one of claims 1-7.

9. The straddle-type monorail bogie according to claim 8, characterized in that: The bogie comprises a running wheel assembly (4) resting on a track beam (1) and a stabilizing wheel assembly (5) located on both sides of the track beam (1), the running wheel assembly (4) being driven by a drive unit (3), and the bogie further comprises a motor mounting hole (203), the drive unit (3) being mounted in the motor mounting hole (203).

10. A bidirectional adjustment method for guide wheels of a straddle-type monorail bogie, characterized in that: Based on the guide wheel bidirectionally adjustable elastic device according to any one of claims 1 to 7, the guide wheel bidirectional adjustment method comprises: A. By tightening the adjusting bolt (603) to compress the rubber spring (6022), the inner end of the mounting rod (601) moves toward the track beam (1), and under the action of the lever, the outer end of the mounting rod (601) moves away from the track beam (1), the pre-compression amount of the guide wheel (702) decreases, and the guide wheel (702) provides a smaller lateral force; when the first metal base (6021) and the second metal base (6023) are against each other, the gap (6024) is eliminated, and a gap is formed between the guide wheel (702) and the track beam (1), the pre-compression amount of the guide wheel (702) is zero, and the mounting bolts of the guide wheel (702) can be removed; B. By loosening the adjusting bolt (603) to release the rubber spring (6022), the inner end of the mounting rod (601) moves away from the track beam (1). Under the action of the lever, the outer end of the mounting rod (601) moves toward the track beam, and the guide wheel (702) is closer to the track beam (1). The pre-compression amount of the guide wheel (702) increases, and the guide wheel (702) provides a greater lateral force. When the preset reasonable force value is reached, the vehicle operation safety and curve passing ability can be guaranteed.

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