A two-way adjustable elastic device for a straddle-type monorail bogie

Abstract

The application discloses a kind of two-way adjustable elastic device of guide wheel suitable for straddle-type monorail bogie, including rotating installation rod in the four corners of bogie frame, installation rod outer end is used to connect guide wheel composition, the inner end of installation rod is supported to bogie frame by rubber spring assembly transversely, rubber spring assembly includes first metal base, second metal base and the rubber spring clamped between the two, adjusting bolt is screwed into first metal base after passing through installation rod and second metal base, clearance is formed between first metal base and second metal base, the compression amount of rubber spring assembly is adjusted by the screwing depth of adjusting bolt.The two-way adjustable guide wheel elastic device of the application can quickly adjust the gap between guide wheel and track beam, which helps to reduce the running wear of guide wheel tire, and facilitates on-site adjustment of tire pre-pressure.In addition, the vehicle can attenuate vibration and impact with the help of rubber spring assembly when running.

Description

Technical Field

[0001] This invention relates to the field of bogie technology, and more specifically, to a bidirectional adjustable elastic device for guide wheels of straddle-type monorail bogies. Background Technology

[0002] As an efficient mode of urban rail transit, straddle-type monorail systems have particularly complex structural and design requirements. In straddle-type monorail systems, the design and use of guide wheels are one of the key factors in ensuring the safe and smooth operation of trains.

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

[0004] The guide wheel mainly consists of a guide tire, a rim, and fasteners. The guide tire is usually made of a highly elastic material so that it can deform when it comes into contact with the track. This deformation helps to absorb vibrations and impacts during driving, providing a smoother ride. As the core component connecting the tire and the bogie, the rim needs to have high strength and good durability to support the weight of the tire and the operating pressure. The fasteners ensure a tight fit between the rim and the tire, preventing the tire from falling off during high-speed operation.

[0005] However, the pre-compression deformation force of the guide tires poses a certain challenge to the replacement work. Due to the large weight of the guide wheel assembly and the limited space in the installation position, it is difficult to remove the entire guide wheel assembly from the bogie without the aid of external force. In addition, the installation position of the guide wheels is usually high, and operators need to use special mechanical equipment for lifting and lowering, which not only increases the complexity of the operation, but also increases the safety risks in the maintenance process.

[0006] Currently, the guide wheel assembly used in straddle-type monorail bogies is mostly fixed. How to improve the operational adaptability of guide tires, reduce operational wear, and simplify the difficulty of guide tire replacement has become an important technical problem that needs to be solved by those skilled in the art.

[0007] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

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

[0009] Therefore, the specific technical solution adopted by the present invention is as follows: According to one aspect of the present invention, a bidirectional adjustable elastic device for guide wheels of a straddle-type monorail bogie is provided, comprising mounting rods rotatably disposed at the four corners of the bogie frame, the outer ends of the mounting rods being used to connect to the guide wheel assembly, and the inner ends of the mounting rods being laterally supported on the bogie frame by a rubber spring assembly. The rubber spring assembly includes a first metal base, a second metal base, and a rubber spring clamped between the two. An adjusting bolt passes through the mounting rod and the second metal base and is screwed into the first metal base, forming a gap between the first metal base and the second metal base. The compression of the rubber spring assembly is adjusted by the screwing depth of the adjusting bolt.

[0010] Furthermore, to attenuate vibrations and impacts and improve vehicle ride comfort by utilizing the rubber spring assembly in the bidirectional adjustable elastic device, when the rubber spring assembly is compressed beyond a certain amount, a gap is formed between the guide wheel and the track beam using a lever effect. The pre-compression of the guide wheel is zero. At this point, the guide wheel mounting bolts can be removed, allowing it to be taken off directly without external force. Under the action of the positioning pin, the mounting rod is limited, restricting its vertical nodding and flipping. Positioning pins that mate with the mounting rod 601 are provided around the bottom of the bogie frame. The mounting rod has a vertically arranged central mounting hole in the middle. A rotating pair is formed between the hole and the positioning pin through a friction sleeve, realizing 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 abuts against the mounting seat. The first metal base and the mounting seat are positioned by a positioning structure, which includes a positioning platform and a positioning groove respectively located 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 central protrusion. The rubber spring is sleeved on the outside of the central protrusion. A gap is formed between the central protrusion of the first metal base and the central protrusion of the second metal base.

[0011] Furthermore, in order to connect via fasteners, loosen the guide wheel fasteners, tighten the adjusting bolts, and compress the height of the rubber spring assembly to allow the guide wheel assembly to descend naturally. When the guide wheel needs to be reinstalled, simply reverse the order of operations. 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 abuts against the track beam to achieve guidance.

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

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

[0014] According to another aspect of the present invention, a bidirectional adjustment method for guide wheels of straddle-type monorail bogies is also provided, the bidirectional adjustment method comprising: 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). Under the action of the lever, the outer end of the mounting rod (601) moves away from the track beam (1), the pre-compression of the guide wheel (702) decreases, and the guide wheel (702) provides a smaller lateral force. When the first metal base (6021) abuts against the second metal base (6023), the gap (6024) is eliminated, a gap is formed between the guide wheel (702) and the track beam (1), the pre-compression of the guide wheel (702) is zero, and the mounting bolt 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 towards the track beam, and the guide wheel (702) gets closer to the track beam (1). The pre-compression of the guide wheel (702) increases, and the guide wheel (702) provides a greater lateral force. The reasonable force value preset for operation can ensure the safe operation of the vehicle and its ability to pass through curves.

[0015] The beneficial effects of this invention are as follows: 1. The bidirectional 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 fasteners of the guide wheel assembly are loosened, it can fall and be taken out by its own weight, which improves the impact resistance of the guide wheel, helps to reduce the wear of the guide tire during operation, and facilitates the on-site adjustment of the tire preload.

[0016] 2. In this invention, when the rubber spring assembly is compressed, the lever effect is utilized to move the guide wheel away from the track beam, reducing the pre-compression of the guide wheel and providing a smaller lateral force. When the rubber spring compression is released, the lever effect is utilized to move the guide wheel closer to the track beam, increasing the pre-compression of the guide wheel and providing a larger lateral force. Adjusting the lateral force provided by the guide wheel achieves the reasonable force value required for operation, which helps to ensure the safety of vehicle operation and the ability to pass through curves. When the guide wheel runs on the side of the track beam, it will generate vibration and impact.

[0017] 3. The rubber spring assembly in the bidirectional adjustable elastic device can dampen vibration and impact, improving vehicle running comfort. When the rubber spring assembly is compressed beyond a certain amount, a gap is formed between the guide wheel and the track beam using the leverage effect. The pre-compression of the guide wheel is zero. At this time, the guide wheel can be removed directly without the need for external force by removing the guide wheel mounting bolts. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a bidirectional adjustable elastic device for a straddle-type monorail bogie according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a bidirectional adjustable elastic device for guide wheels of a straddle-type monorail bogie according to an embodiment of the present invention, applied in a specific application. Figure 3 This is a three-dimensional assembly drawing of a bidirectional adjustable elastic device for a straddle-type monorail bogie, according to an embodiment of the present invention, in a specific application. Figure 4 This is a schematic diagram of the structure of a rubber spring assembly in a bidirectional adjustable elastic device for a straddle-type monorail bogie according to an embodiment of the present invention. Figure 5 This is a partial structural schematic diagram of a bidirectional adjustable elastic device for a guide wheel of a straddle-type monorail bogie according to an embodiment of the present invention. Figure 6 This is a structural schematic diagram of a straddle-type monorail bogie according to an embodiment of the present invention; Figure 7 This is a flowchart of a method for bidirectional adjustment of guide wheels for straddle-type monorail bogies according to an embodiment of the present invention.

[0020] In the picture: 1. Track beam; 2. Bogie frame; 201. Positioning pin; 202. Mounting base; 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. Clearance; 6025. Fixing bolt; 603. Adjusting bolt; 604. Friction sleeve; 7. Guide wheel assembly; 701. Guide wheel axle box; 702. Guide wheel. Detailed Implementation

[0021] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings 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 drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings 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 bidirectional adjustable elastic device for guide wheels of straddle-type monorail bogies, a bogie, and a bidirectional adjustment method for guide wheels are provided.

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-5 As shown, according to an embodiment of the present invention, a bidirectional adjustable elastic device 6 for guide wheels of a straddle-type monorail bogie is provided, including mounting rods 601 rotatably disposed at the four corners of the bogie frame 2. The outer end of the mounting rods 601 is used to connect to the guide wheel assembly 7. The inner end of the mounting rods 601 is laterally supported on the bogie frame 2 by a rubber spring assembly 602. The rubber spring assembly 602 includes a first metal base 6021, a second metal base 6023, and a rubber spring 6022 clamped between the two. An adjusting bolt 603 passes through the mounting rods 601 and the second metal base 6023 and is screwed into the first metal base 6021. The gap 6024 between the first metal base 6021 and the second metal base 6023 (the maximum value of the gap 6024 is the adjustment stroke) is adjusted by the screwing depth of the adjusting bolt 603.

[0024] By means of the above technical solution, the present invention utilizes the rubber spring assembly 602 in the bidirectional adjustable elastic device to dampen vibration and impact, thereby improving vehicle operating comfort. When the rubber spring assembly 602 is compressed beyond a certain amount, a gap is formed between the guide wheel 702 and the track beam 1 by lever effect, and the pre-compression of the guide wheel 702 is zero. At this time, the guide wheel 702 can be removed directly without the need for external force by removing the mounting bolts. Under the action of the positioning pin 201, the mounting rod 601 is limited, restricting the mounting rod 601 from nodding up and down and flipping.

[0025] In one embodiment, for the aforementioned steering frame 2, a positioning pin 201 is provided around the bottom perimeter of the steering frame 2 to cooperate with the mounting rod 601; the mounting rod 601 has a vertically arranged central mounting hole in its middle, and a rotating pair is formed between the central mounting hole and the positioning pin 201 through a friction sleeve 604 to realize the rotation between the mounting rod 601 and the steering frame 2. The steering frame 2 is provided with a mounting seat 202 corresponding to the rubber spring assembly 602, and a first metal base 6021 abuts against the mounting seat 202. The first metal base 6021 and the mounting seat 202 are positioned by a positioning structure, which includes a positioning platform and a positioning groove respectively disposed on the first metal base 6021 and the mounting seat 202. The outer side of the second metal base 6023 is fixed to the mounting rod 601 by a fixing bolt 6025. 01 Fixed, the first metal base 6021 and the second metal base 6023 have a central protrusion, and the rubber spring 6022 is sleeved on the central protrusion. The gap 6024 formed between the central protrusion of the first metal base 6021 and the central protrusion of the second metal base 6023 allows the rubber spring assembly 602 in the bidirectional adjustable elastic device to dampen vibration and impact, thereby improving the vehicle's running comfort. When the rubber spring assembly 602 is compressed beyond a certain amount, a gap is formed between the guide wheel 702 and the track beam 1 by utilizing the lever effect. The pre-compression of the guide wheel 702 is zero. At this time, the guide wheel 702 can be removed by removing the mounting bolts, and it can be directly removed without the aid of external force. Under the action of the positioning pin 201, the mounting rod 601 is limited, restricting the mounting rod 601 from nodding up and down and flipping.

[0026] In one embodiment, 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 abuts against the track beam 1 to achieve guidance. It is connected by fasteners. By loosening the fasteners of the guide wheel 702 and tightening the adjusting bolt 603, the height of the rubber spring assembly 602 is compressed, and the guide wheel assembly 7 can be lowered naturally. When the guide wheel needs to be installed again, the operation can be performed in reverse order.

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

[0028] In one embodiment, the bogie includes a running wheel assembly 4 resting 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, in which the drive unit 3 is installed to ensure the stable installation of the drive unit 3.

[0029] According to yet another embodiment of the present invention, such as Figure 7 As shown, a bidirectional adjustment method for guide wheels of straddle-type monorail bogies is also provided, which includes the following steps: S1. By tightening the adjusting bolt 603, the rubber spring 6022 is compressed. The rubber spring assembly 602 is compressed. Utilizing the leverage effect, the guide wheel 702 moves away from the track beam 1. The pre-compression of the guide wheel 702 decreases, and the guide wheel 702 provides a smaller lateral force. S2. By loosening the adjusting bolt 603, the rubber spring 6022 is released. The rubber spring 6022 releases its compression. Utilizing the leverage effect, the guide wheel 702 moves closer to the track beam 1, the pre-compression of the guide wheel 702 increases, and the guide wheel 702 provides a greater lateral force. S3. Adjust the lateral force provided by the guide wheel 702 to achieve the preset reasonable force value to ensure vehicle operation safety and curve passage ability; S4. When the guide wheel 702 runs on the side of the track beam 1, it will generate vibration and impact. The vibration and impact are damped by the rubber spring assembly 602. S5. Tighten the adjusting bolt 603. When the first metal base 6021 and the second metal base 6023 abut against each other, the adjustment reaches its maximum, the gap 6024 is eliminated, a gap is formed between the guide wheel 702 and the track beam 1, and the pre-compression of the guide wheel 702 is zero. Remove the mounting bolts of the guide wheel 702. Of course, by setting the structure of the first metal base 6021 and the second metal base 6023, the pre-compression of the guide wheel 702 can also be reduced to zero even when the gap 6024 is not eliminated.

[0030] In summary, by means of the above-mentioned technical solution of the present invention, the bidirectional 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, and after the fasteners of the guide wheel assembly 7 are loosened, it can be removed 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 moves away from the track beam 1 by utilizing the leverage effect, the precompression of the guide wheel 702 decreases, and the guide wheel 702 provides a smaller lateral force; when the compression of the rubber spring 6022 is released, the guide wheel 702 moves closer to the track beam 1 by utilizing the leverage effect. With the increased pre-compression of the guide wheel 702 on the track beam 1, the guide wheel 702 provides a greater lateral force. Adjusting the lateral force provided by the guide wheel 702 to achieve the reasonable force value required for operation helps ensure vehicle operation safety and curve passage ability. When the guide wheel 702 runs on the side of the track beam 1, it will generate vibration and impact. With the help of the rubber spring assembly 602 in the bidirectional adjustable elastic device, the vibration and impact can be damped, improving the vehicle's running comfort. When the compression of the rubber spring assembly 602 exceeds a certain amount, a gap is formed between the guide wheel 702 and the track beam 1 by utilizing the leverage effect, and the pre-compression of the guide wheel 702 is zero. At this time, the guide wheel 702 can be removed directly without the need for external force by removing the mounting bolts.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this 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 principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bidirectional adjustable elastic device for guide wheels of straddle-type monorail bogies, characterized in that, The device includes a bidirectional adjustable elastic device body (6) and mounting rods (601) rotatably disposed at the four corners of the bogie frame (2). The outer end of the mounting rod (601) is used to connect to the guide wheel assembly (7). The inner end of the mounting rod (601) is laterally supported on the bogie frame (2) by a rubber spring assembly (602). The rubber spring assembly (602) includes a first metal base (6021), a second metal base (6023), and a rubber spring (6022) clamped between the two. A first 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) as the adjustment stroke. The bottom of the bogie frame (2) is provided with positioning pins (201) that cooperate with the bidirectional adjustable elastic device body (6); the mounting rod (601) has a vertically arranged central mounting hole in the middle, and the central mounting hole and the positioning pin (201) form a rotating pair through a friction sleeve (604) to realize the rotation between the mounting rod (601) and the bogie frame (2).

2. The bidirectional adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 1, characterized in that, The steering 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 by a positioning structure.

3. The bidirectional adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 2, characterized in that, The positioning structure includes a positioning platform and a positioning groove respectively disposed on the first metal base (6021) and the mounting base (202).

4. The bidirectional adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 3, characterized in that, The outer side of the second metal base (6023) is fixed to the mounting rod (601) by fixing bolts (6025).

5. The bidirectional adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 4, characterized in that, The first metal base (6021) and the second metal base (6023) have a central protrusion, and the rubber spring (6022) is sleeved on the central protrusion. 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).

6. The bidirectional adjustable elastic device for guide wheels of a straddle-type monorail bogie according to claim 5, characterized in that, 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) abuts against the track beam (1) to achieve guidance.

7. A straddle-type monorail bogie, comprising a bogie frame (2), characterized in that, It also includes the bidirectional adjustable elastic device for the guide wheel as described in any one of claims 1-6.

8. The straddle-type monorail bogie according to claim 7, characterized in that, The bogie includes 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) is driven by a drive unit (3). The bogie also includes a motor mounting hole (203), in which the drive unit (3) is installed.

9. A method for bidirectional adjustment of guide wheels suitable for straddle-type monorail bogies, characterized in that, Based on the bidirectional adjustable elastic device for the guide wheel according to any one of claims 1-6, the bidirectional adjustment method for the guide wheel includes the following steps: S1. When the rubber spring assembly (602) is compressed, the guide wheel (702) moves away from the track beam (1) by utilizing the lever effect. The pre-compression of the guide wheel (702) becomes smaller, and the guide wheel 702 provides a smaller lateral force. S2. When the compression of the rubber spring (6022) is released, the guide wheel (702) is brought closer to the track beam (1) by lever effect, the pre-compression of the guide wheel (702) increases, and the guide wheel (702) provides a greater lateral force. S3. Adjust the lateral force provided by the guide wheel (702) to achieve the preset reasonable force value to ensure vehicle operation safety and curve passing ability; S4. When the guide wheel (702) runs on the side of the track beam (1), it will generate vibration and impact. The vibration and impact will be damped by the rubber spring assembly (602). S5. When the compression of the rubber spring assembly (602) exceeds the preset quantity, a gap is formed between the guide wheel (702) and the track beam (1) by utilizing the leverage effect. The pre-compression of the guide wheel (702) is zero, and the mounting bolts of the guide wheel (702) are removed.

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