Slide rail device of railway vehicle door

Abstract

The utility model discloses a sliding rail device of a railway vehicle door, and relates to the technical field of railway vehicle parts. Comprising a mounting frame, a sliding rail body is mounted on the inner wall of the mounting frame, a rail vehicle door body is arranged below the sliding rail body in a sliding fit mode, a sliding assembly is arranged between the sliding rail body and the rail vehicle door body, and a driving assembly is arranged between the sliding assembly and the mounting frame. The weight of the rail vehicle door body can be evenly dispersed through the arranged bearing rollers, damage to the sliding rail device caused by too large local stress is prevented, the guide rollers ensure that the vehicle door strictly moves according to a preset track in the opening and closing process, the perpendicularity and flatness of the vehicle door can be maintained even under the severe working conditions that a vehicle runs at a high speed and vibrates frequently, and the service life of the vehicle door is prolonged. And the oil storage box, the oil conveying groove and the rolling wheel are ingeniously combined, lubricating oil can be automatically conveyed to a key friction part, and the low friction state between the rolling wheel and the groove wall is continuously kept.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicle component technology, and more specifically, to a sliding rail device for a rail vehicle door. Background Technology

[0002] With the rapid development of the rail transit industry, the performance requirements for rail vehicle doors are becoming increasingly stringent. As a key supporting component of the door, the sliding rail device plays a decisive role in the overall operation of the door. In traditional rail vehicle door systems, from the perspective of friction and wear, the machining precision of the mating surfaces of the sliding rail and the slider is limited, resulting in a large surface roughness when they come into contact, which leads to a significant increase in friction.

[0003] Existing rail vehicle doors experience accelerated wear due to frequent opening and closing operations over a long period. This not only gradually increases the clearance between the slider and the rail, causing the door to shake and jam during operation, severely affecting the smoothness of passenger boarding and alighting, but also significantly reduces the service life of components.

[0004] Therefore, we have made improvements to this by proposing a sliding rail device for rail vehicle doors. Utility Model Content

[0005] The purpose of this utility model is to address the issue that existing rail vehicle doors experience accelerated wear due to frequent opening and closing operations over a long period. This not only causes the gap between the slider and the rail to gradually increase, leading to shaking and jamming during door operation and severely affecting the smoothness of passenger boarding and alighting, but also significantly reduces the service life of the components.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A sliding rail device for a rail vehicle door is provided to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] The device includes a mounting bracket, on the inner wall of which a slide rail body is mounted. A track door body is slidably fitted below the slide rail body. A sliding assembly is provided between the slide rail body and the track door body. A drive assembly is provided between the sliding assembly and the mounting bracket. The sliding assembly includes a drive plate and a mounting plate that are slidably fitted on the upper and lower sides of the slide rail body, respectively.

[0010] The load-bearing rollers evenly distribute the weight of the railcar door, preventing excessive localized stress from damaging the sliding rail mechanism and extending its service life. On the other hand, the guide rollers ensure the door moves strictly along a predetermined trajectory during opening and closing, maintaining its verticality and flatness even under harsh conditions of high-speed vehicle travel and frequent vibrations, guaranteeing a tight seal when closed. The ingenious combination of the oil reservoir, oil channel, and rollers achieves an automatic lubrication mechanism. During normal door operation, lubricating oil is automatically delivered to key friction points without frequent manual intervention, continuously maintaining low friction between the rollers and the channel walls.

[0011] As a preferred embodiment of the sliding rail device for the rail vehicle door provided by this utility model, T-shaped blocks are slidably fitted on both sides of the sliding rail body, and connecting shafts that rotate with the drive plate and the mounting plate are installed on both the upper and lower sides of the T-shaped blocks.

[0012] As a preferred embodiment of the sliding rail device for the rail vehicle door provided by this utility model, bearings are installed between the connecting shafts on the upper and lower sides of the T-shaped block and the drive plate and the mounting plate, respectively, and oil storage boxes are installed at the top of the upper connecting shafts of the two T-shaped blocks.

[0013] As a preferred embodiment of the sliding rail device for the rail vehicle door provided by this utility model, the sliding rail body has an inwardly recessed load-bearing groove along its guiding direction, and the bottom of the sliding rail body has a guide groove that communicates with the load-bearing groove.

[0014] In a preferred embodiment of the sliding rail device for the rail vehicle door provided by this utility model, load-bearing rollers are rotatably fitted on both sides of the T-shaped block, and the load-bearing rollers are located in the load-bearing groove. Guide rollers are rotatably fitted on both sides of the bottom of the T-shaped block, and the guide rollers are located in the guide groove.

[0015] As a preferred embodiment of the sliding rail device for the rail vehicle door provided by this utility model, the interior of the T-shaped block and the connecting shaft are provided with oil delivery grooves that communicate with the oil storage box. The outlet of the oil delivery groove is located on the bearing roller and the guide roller shaft, and a sealing cover is installed on the top of the oil storage box.

[0016] In a preferred embodiment of the sliding rail device for the rail vehicle door provided by this utility model, the drive assembly includes a servo motor mounted on the upper side of the mounting bracket, and the output shaft of the servo motor is equipped with a transmission rod.

[0017] In a preferred embodiment of the sliding rail device for the rail vehicle door provided by this utility model, a gear is installed on the periphery of the transmission rod, and a toothed plate that meshes with the gear is installed on the upper side of the drive plate.

[0018] Compared with existing technologies, the beneficial effects of this utility model are as follows: The load-bearing rollers evenly distribute the weight of the railcar door body, preventing excessive localized stress from damaging the slide rail device and extending its service life. Furthermore, the guide rollers ensure that the door moves strictly along a predetermined trajectory during opening and closing, maintaining the door's verticality and flatness even under harsh conditions of high-speed vehicle travel and frequent vibrations, ensuring a tight seal after closing. The ingenious combination of the oil reservoir, oil channel, and rollers achieves an automatic lubrication mechanism. During normal door operation, no frequent manual intervention is required; lubricating oil is automatically delivered to key friction points, continuously maintaining a low-friction state between the rollers and the channel wall. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the sliding rail device for a rail vehicle door provided in this application;

[0020] Figure 2 A schematic diagram of the connection structure between the slide rail body and the railcar door body provided in this application;

[0021] Figure 3 This is a schematic diagram of the front sectional view of the slide rail body provided in this application;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the sliding component provided in this application;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the slide rail body provided in this application;

[0024] Figure 6 This is a schematic diagram of another part of the sliding component provided in this application;

[0025] Figure 7 A schematic diagram of the driving component structure provided in this application.

[0026] The image shows:

[0027] 1. Mounting bracket; 2. Slide rail body; 3. Rail car door body; 4. Sliding assembly; 401. Drive plate; 402. Mounting plate; 403. T-block; 404. Oil reservoir; 405. Connecting shaft; 406. Bearing; 407. Load-bearing groove; 408. Guide groove; 409. Load-bearing roller; 410. Guide roller; 411. Oil supply groove; 412. Sealing cover; 5. Drive assembly; 501. Servo motor; 502. Transmission rod; 503. Gear; 504. Gear plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] Example 1

[0037] Please refer to Figure 1-7A sliding rail device for a rail vehicle door includes: a mounting frame 1; a sliding rail body 2 is mounted on the inner wall of the mounting frame 1; a rail vehicle door body 3 is slidably fitted below the sliding rail body 2; a sliding assembly 4 is disposed between the sliding rail body 2 and the rail vehicle door body 3; and a driving assembly 5 is disposed between the sliding assembly 4 and the mounting frame 1. The sliding assembly 4 includes a driving plate 401 and a mounting plate 402 slidably fitted on the upper and lower sides of the sliding rail body 2, respectively. T-shaped blocks 403 are slidably fitted on both sides of the inner wall of the sliding rail body 2. Connecting shafts 405, which rotatably engage with the driving plate 401 and the mounting plate 402, are mounted on the upper and lower sides of the T-shaped blocks 403. Bearings 406 are installed between the connecting shafts 405 on the upper and lower sides of the T-shaped blocks 403 and the driving plate 401 and the mounting plate 402, respectively. Oil collection boxes 404 are installed at the top ends of the connecting shafts 405 on the upper sides of the two T-shaped blocks 403. The slide rail body 2 has an inwardly recessed load-bearing groove 407 along its guiding direction, and a guide groove 408 communicating with the load-bearing groove 407 is provided at the bottom of the slide rail body 2. Load-bearing rollers 409 are rotatably fitted on both sides of the T-shaped block 403, and the load-bearing rollers 409 are located within the load-bearing groove 407. Guide rollers 410 are rotatably fitted on both sides of the bottom of the T-shaped block 403, and the guide rollers 410 are located within the guide groove 408. Oil delivery grooves 411 communicating with the oil storage box 404 are provided inside both the T-shaped block 403 and the connecting shaft 405. The outlet of the oil delivery groove 411 is located on the rollers of the load-bearing rollers 409 and the guide rollers 410. A sealing cover 412 is installed on the top of the oil storage box 404.

[0038] Implementation process: The movement of the drive plate 401 is transmitted to the T-block 403 through the connecting shaft 405. Because the connecting shaft 405 is in rotational cooperation with the drive plate 401 and the mounting plate 402 respectively, and the friction is reduced by the bearing 406, the T-block 403 can smoothly respond to the action of the drive plate 401. During the movement of the T-block 403, the load-bearing rollers 409 on both sides rotate and cooperate within the load-bearing grooves 407 of the slide rail body 2, while the guide rollers 410 on both sides at the bottom roll within the guide grooves 408. This not only ensures the smooth movement of the T-block 403 but also effectively supports the weight of the track door body 3 and guides it to run along a precise trajectory. The lubricating oil in the oil reservoir 404 flows through the oil channel 411 to the rollers of the load-bearing rollers 409 and guide rollers 410 under the slight shaking caused by the vibration of the vehicle operation or the movement of the T-block 403, continuously providing lubrication for the rollers and further reducing the friction between the rollers and the corresponding groove walls, ensuring that the opening and closing of the door is easy and smooth. The mounting plate 402 moves synchronously with the movement of the T-block 403, ultimately driving the rail door body 3 to achieve stable opening or closing operations. The load-bearing roller 409 can evenly distribute the weight of the rail door body 3, preventing excessive local force from damaging the slide rail device and extending the service life of the device. On the other hand, the guide roller 410 ensures that the door moves strictly according to the predetermined trajectory during the opening and closing process. Even under harsh working conditions such as high-speed vehicle travel and frequent vibration, it can maintain the verticality and flatness of the door and ensure the sealing performance after the door is closed.

[0039] Benefits of implementation: Through the oil reservoir 404 and oil delivery groove 411, the lubricating oil can be automatically delivered to the key friction parts, and the low friction between the roller and the groove wall can be maintained continuously.

[0040] Example 2

[0041] The drive assembly 5 includes a servo motor 501 mounted on the upper side of the mounting bracket 1, and a transmission rod 502 is mounted on the output shaft of the servo motor 501. A gear 503 is mounted on the periphery of the transmission rod 502, and a toothed plate 504 that meshes with the gear 503 is mounted on the upper side of the drive plate 401.

[0042] Implementation Process: When it is necessary to open or close the railcar door body 3, the servo motor 501 installed on the upper side of the mounting bracket 1 is activated. The servo motor 501 operates, driving the transmission rod 502 on its output shaft to rotate, and the gear 503 installed around the transmission rod 502 rotates synchronously. Since the gear plate 504 installed on the upper side of the drive plate 401 meshes with the gear 503, the rotation of the gear 503 causes the gear plate 504 to move, thereby driving the drive plate 401 to move along the guide direction of the slide rail body 2. Compared with the traditional drive method, this structure responds quickly and positions accurately, effectively avoiding jamming and deviation during the operation of the door, ensuring that the door can smoothly reach the predetermined position every time, greatly improving the reliability of the door operation, and providing safety for passengers getting on and off the train.

[0043] Benefits of implementation: It ensures that the door can smoothly reach the predetermined position every time, greatly improving the reliability of the door operation.

[0044] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A sliding rail device of a rail vehicle door, characterized in that Include: Mounting frame (1), the inner wall of mounting frame (1) is provided with slide rail body (2), the lower part of slide rail body (2) is slidably connected with rail car door body (3), slide assembly (4) is arranged between slide rail body (2) and rail car door body (3), drive assembly (5) is arranged between slide assembly (4) and mounting frame (1), slide assembly (4) includes drive plate (401) and mounting plate (402) that are slidably connected on the upper and lower sides of slide rail body (2) respectively.

2. A sliding rail device for a rail vehicle door according to claim 1, characterized in that Both sides of slide rail body (2) are slidably connected with T-shaped block (403), and the upper and lower sides of T-shaped block (403) are rotatably connected with connecting shaft (405) of drive plate (401) and mounting plate (402).

3. A sliding rail arrangement for a rail vehicle door according to claim 2, characterized in that The connecting shaft (405) of the upper and lower sides of the T-shaped block (403) is rotatably connected with the drive plate (401) and the mounting plate (402) between the connecting shaft (405), and the top end of the connecting shaft (405) of the two T-shaped blocks (403) is provided with an oil storage box (404).

4. A sliding rail device for a rail vehicle door according to claim 2, characterized in that The slide rail body (2) is provided with a weight bearing groove (407) inwardly recessed along its guide direction, and the bottom of the slide rail body (2) is provided with a guide groove (408) in communication with the weight bearing groove (407).

5. A sliding rail arrangement for a rail vehicle door according to claim 4, characterized in that Both sides of T-shaped block (403) are rotatably connected with weight bearing roller (409), and weight bearing roller (409) is located in weight bearing groove (407), and both sides of the bottom of T-shaped block (403) are rotatably connected with guide roller (410), and guide roller (410) is located in guide groove (408).

6. A sliding rail arrangement for a rail vehicle door according to claim 5, characterized in that The inside of T-shaped block (403) and connecting shaft (405) is provided with oil delivery groove (411) in communication with oil storage box (404), the outlet of oil delivery groove (411) is located on the roller shaft of weight bearing roller (409) and guide roller (410), and the top of oil storage box (404) is provided with sealing cover (412).

7. A sliding rail device for a rail vehicle door according to claim 1, characterized in that The drive assembly (5) includes a servo motor (501) mounted on the upper side of the mounting frame (1), and the output shaft of the servo motor (501) is provided with a transmission rod (502).

8. A sliding rail device for a rail vehicle door according to claim 7, characterized in that The side of transmission rod (502) is provided with gear (503), and the upper side of drive plate (401) is provided with toothed plate (504) engaged with gear (503).

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