Railway wagon maintenance equipment

Abstract

The utility model discloses a railway wagon maintenance device which comprises a device chassis, a plurality of sets of wheels used for being clamped with railway guide rails to slide are arranged below the device chassis, the multiple sets of wheels are evenly distributed at the four corners of the bottom of the device chassis, and a protection table used for maintenance workers to stand is arranged above the device chassis. And the lifting assembly is arranged between the equipment chassis and the protection table and used for lifting the protection table. According to the railway wagon overhauling equipment, in the process that a railway wagon is overhauled through the overhauling equipment, through mutual cooperation of the lifting assembly, the stroke limiting assembly, the driving assembly and the supporting assembly, friction supporting is generated between the supporting plates on the two sides of the equipment chassis and the railway ground; and the stability of the protection table in the use state of the highest height is effectively improved, and the safety of maintainers during operation and maintenance is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of railway freight car maintenance technology, specifically to a railway freight car maintenance device. Background Technology

[0002] During the maintenance of railway freight cars, due to their height, when maintenance work needs to be carried out on the top of the car, such as inspecting roof equipment and air conditioning units, a lifting device with a protective platform is required. This device can smoothly transport maintenance personnel to the roof position for easy operation and maintenance. However, as the protective platform is raised, safety risks may arise.

[0003] Therefore, there is an urgent need for railway freight car maintenance equipment to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a railway freight car maintenance device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a railway freight car maintenance equipment, including an equipment chassis, with multiple sets of wheels for sliding and engaging with railway guide rails arranged below the equipment chassis, the multiple sets of wheels being evenly distributed at the four corners of the bottom of the equipment chassis, and a protective platform for maintenance workers to stand on above the equipment chassis; it also includes a lifting assembly disposed between the equipment chassis and the protective platform for raising and lowering the protective platform;

[0006] The lifting assembly includes two sets of symmetrically arranged first and second connecting rods. The two sets of first and second connecting rods are rotatably connected by a pivot, and the first and second connecting rods are arranged in a cross shape. One end of the two sets of first and second connecting rods is fixedly connected to the equipment chassis and the protective platform by a hinge, and the other end of the two sets of first and second connecting rods is slidably connected to the equipment chassis and the protective platform. A connecting rod is fixedly connected between the two sets of first connecting rods. A cylinder is provided between the connecting rod and the pivot. The base and output end of the cylinder are rotatably connected to the pivot and the connecting rod by a pin, respectively.

[0007] A slide bar is fixedly connected between the two sets of first connecting rods. A travel limiting component is provided on the equipment chassis to limit the travel of the slide bar. Two sets of support components are symmetrically provided on the equipment chassis to support and protect the equipment chassis after the height of the protective platform is raised.

[0008] The support assembly includes a connecting plate fixed to one side of the equipment chassis, and a support plate for friction against the railway ground is provided below the connecting plate. The slide bar is provided with a drive assembly for driving the support plate to rise and fall, and a guide assembly for guiding the support plate during the rising and falling process.

[0009] The drive assembly includes a sleeve fixedly connected to the bottom of the connecting plate, a lead screw threaded onto the sleeve, the lead screw being rotatably connected to the connecting plate, one end of the lead screw being fixedly connected to a support plate, and the other end of the lead screw being fixedly connected to a gear, the gear meshing with a rack, and the rack being fixedly connected to one end of a slide bar.

[0010] The guide assembly includes two sets of sleeves fixedly connected to the connecting plate, and a sliding rod is slidably connected to the sleeve. One end of the sliding rod is fixedly connected to the support plate.

[0011] An anti-slip pad is provided below the support plate.

[0012] The travel limit assembly includes two sets of L-shaped limit blocks fixedly connected to the equipment chassis. The two sets of L-shaped limit blocks are provided with threaded holes, and bolts are threaded into the threaded holes. Nuts for adjusting the bolt state are threaded into the bolts. The ends of the two sets of bolts can abut against the side of the slide bar.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model discloses a railway freight car maintenance equipment. During the maintenance of railway freight cars, the lifting component, travel limit component, drive component, and support component work together to create friction support between the support plates on both sides of the equipment chassis and the railway ground. This effectively improves the stability of the protective platform when it is used at its highest height and ensures the safety of maintenance personnel during operation and maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lifting component structure of this utility model;

[0017] Figure 3 This is a schematic diagram showing the positional relationship between the slide bar and the travel limit component of this utility model;

[0018] Figure 4 This is a schematic diagram of the drive component and support component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the stroke limiting component of this utility model.

[0020] In the diagram: 101, wheel; 102, equipment chassis; 103, protective platform; 201, first connecting rod; 202, second connecting rod; 203, rotating shaft; 204, cylinder; 205, connecting rod; 3, slide bar; 401, L-shaped limit block; 402, threaded hole; 403, bolt; 404, nut; 5, support plate; 6, connecting plate; 701, rack; 702, gear; 703, lead screw; 704, sleeve; 801, sleeve; 802, slide bar. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a railway freight car maintenance device, including a chassis 102. Multiple sets of wheels 101 are arranged below the chassis 102 for sliding and engaging with railway guide rails. These wheels 101 are evenly distributed at the four corners of the bottom of the chassis 102. A protective platform 103 for maintenance workers to stand on is provided above the chassis 102. The device also includes a lifting assembly positioned between the chassis 102 and the protective platform 103 for raising and lowering the platform 103. The lifting assembly includes two symmetrically arranged first connecting rods 201 and second connecting rods 202. The two sets of first connecting rods 201 and second connecting rods 202 are rotatably connected by a pivot 203, and the first connecting rods 201 and second connecting rods 202 are arranged in a cross configuration. One end of 2 is fixedly connected between the equipment chassis 102 and the protective platform 103 by a hinge. The other ends of the two sets of first connecting rods 201 and second connecting rods 202 are slidably connected to the equipment chassis 102 and the protective platform 103. A connecting rod 205 is fixedly connected between the two sets of first connecting rods 201. A cylinder 204 is provided between the connecting rod 205 and the rotating shaft 203. The base and output end of the cylinder 204 are rotatably connected to the rotating shaft 203 and the connecting rod 205 by a pin. A slide bar 3 is fixedly connected between the two sets of first connecting rods 201. A travel limit component is provided on the equipment chassis 102 for limiting the travel of the slide bar 3. Two sets of support components are symmetrically provided on the equipment chassis 102 for supporting and protecting the equipment chassis 102 after the height of the protective platform 103 is raised.

[0023] It should be noted that during the maintenance of railway freight cars using the maintenance equipment, the lifting components, travel limit components, drive components and support components work together to create friction support between the support plates 5 on both sides of the equipment chassis 102 and the railway ground, which effectively improves the stability of the protective platform 103 when it is used at its highest height and ensures the safety of maintenance personnel when performing maintenance.

[0024] The support assembly includes a connecting plate 6 fixed to one side of the equipment chassis 102, a support plate 5 for friction with the railway ground is provided below the connecting plate 6, and a drive assembly for driving the support plate 5 to rise and fall and a guide assembly for guiding the support plate 5 during the rising and falling process are provided on the slide bar 3.

[0025] It should be noted here that the stability of the protective platform 103 is improved by the friction between the support plate 5 and the railway ground.

[0026] The drive assembly includes a sleeve 704 fixedly connected to the lower part of the connecting plate 6. A lead screw 703 is threaded onto the sleeve 704. The lead screw 703 is rotatably connected to the connecting plate 6. One end of the lead screw 703 is fixedly connected to the support plate 5. The other end of the lead screw 703 is fixedly connected to a gear 702. The gear 702 meshes with a rack 701. The rack 701 is fixedly connected to one end of the slide bar 3.

[0027] It should be noted here that: by sliding the slider 3, the rack 701 is driven to move horizontally. During the movement of the rack 701, it is driven to rotate by meshing with the gear 702. The rotation of the gear 702 drives the lead screw 703 to rotate inside the sleeve 704. The rotation of the lead screw 703 causes the support plate 5 to move downward.

[0028] The guide assembly includes two sets of sleeves 801 fixedly connected to the connecting plate 6, and a slide rod 802 slidably connected to the sleeve 801. One end of the slide rod 802 is fixedly connected to the support plate 5.

[0029] It should be noted here that the lifting and lowering of the support plate 5 is guided by the sleeve 801 and the slide rod 802.

[0030] An anti-slip pad is provided under the support plate 5;

[0031] It should be noted here that the anti-slip pad assists in the frictional support of the support plate 5.

[0032] The travel limit assembly includes two sets of L-shaped limit blocks 401 fixedly connected to the equipment chassis 102. The two sets of L-shaped limit blocks 401 are provided with threaded holes 402. Bolts 403 are threadedly engaged in the threaded holes 402. Nuts 404 for adjusting the state of bolts 403 are threadedly engaged in the bolts 403. The ends of the two sets of bolts 403 can abut against the side of the slide bar 3.

[0033] It should be noted here that the position of the nut 404 on the bolt 403 is adjusted by the threaded hole 402 and the threaded engagement between the nut 404 and the bolt 403, thereby adjusting the maximum travel distance of the slide bar 3.

[0034] Working principle: When using maintenance equipment to maintain railway freight cars, the wheels 101 under the equipment chassis 102 are first locked onto the railway guide rails so that the maintenance equipment can slide stably on the railway guide rails.

[0035] Once the slide reaches the appropriate position, the drive cylinder 204 drives the first connecting rod 201 and the second connecting rod 202, causing one end of the first connecting rod 201 and the second connecting rod 202 to slide on the protective platform 103 and the equipment chassis 102. Through the sliding of the first connecting rod 201 and the second connecting rod 202, the angle between the first connecting rod 201 and the second connecting rod 202 and the horizontal ground is increased, thereby increasing the height of the protective platform 103 and raising the protective platform 103, thus facilitating maintenance personnel to inspect the railway freight cars at higher positions.

[0036] During the raising operation of the protective platform 103, the sliding of the first connecting rod 201 on the equipment chassis 102 causes the slide bar 3 to slide on the equipment chassis 102. The sliding of the slide bar 3 causes the rack 701 to move horizontally. During the movement of the rack 701, it drives the gear 702 to rotate through meshing with the gear 702. The rotation of the gear 702 drives the lead screw 703 to rotate inside the sleeve 704. The rotation of the lead screw 703 causes the support plate 5 to move downward. When the slide bar 3 abuts against the end of the bolt 403 on the L-shaped limit block 401, the maximum operating height of the protective platform 103 is reached and the support plate 5 abuts against the railway ground. Through the frictional support between the support plates 5 on both sides of the equipment chassis 102 and the railway ground, the stability of the protective platform 103 at the maximum operating height is effectively improved, ensuring the safety of maintenance personnel during operation and maintenance.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A railway freight car maintenance device, comprising: The equipment chassis (102) has multiple sets of wheels (101) for sliding and engaging with the railway guide rails. The multiple sets of wheels (101) are evenly distributed at the four corners of the bottom of the equipment chassis (102). A protective platform (103) for maintenance workers to stand on is provided above the equipment chassis (102). Its characteristic is that it further includes: A lifting assembly is installed between the equipment chassis (102) and the protective platform (103) for raising and lowering the protective platform (103); The lifting assembly includes two sets of symmetrically arranged first connecting rods (201) and second connecting rods (202). The two sets of first connecting rods (201) and second connecting rods (202) are rotatably connected by a pivot (203), and the first connecting rods (201) and second connecting rods (202) are arranged in a cross shape. One end of the two sets of first connecting rods (201) and second connecting rods (202) is fixedly connected between the equipment chassis (102) and the protective platform (103) by a hinge. The other ends of the two sets of first connecting rods (201) and second connecting rods (202) are slidably connected to the equipment chassis (102) and the protective platform (103). A connecting rod (205) is fixedly connected between the two sets of first connecting rods (201). A cylinder (204) is provided between the connecting rod (205) and the rotating shaft (203). The base and output end of the cylinder (204) are rotatably connected to the rotating shaft (203) and the connecting rod (205) respectively through a pin. A slide bar (3) is fixedly connected between the two sets of first connecting rods (201). A travel limit component is provided on the equipment chassis (102) for limiting the travel of the slide bar (3). Two sets of support components are symmetrically provided on the equipment chassis (102) for supporting and protecting the equipment chassis (102) after the height of the protective platform (103) is raised.

2. The railway freight car maintenance equipment according to claim 1, characterized in that: The support assembly includes a connecting plate (6) fixed to one side of the equipment chassis (102), and a support plate (5) for friction with the railway ground is provided below the connecting plate (6). The slide bar (3) is provided with a drive assembly for driving the support plate (5) to rise and fall, and a guide assembly for guiding the support plate (5) during the rising and falling process.

3. The railway freight car maintenance equipment according to claim 2, characterized in that: The drive assembly includes a sleeve (704) fixedly connected to the bottom of the connecting plate (6), a lead screw (703) threaded onto the sleeve (704), the lead screw (703) being rotatably connected to the connecting plate (6), one end of the lead screw (703) being fixedly connected to the support plate (5), and the other end of the lead screw (703) being fixedly connected to a gear (702), the gear (702) meshing with a rack (701), and the rack (701) being fixedly connected to one end of the slide bar (3).

4. The railway freight car maintenance equipment according to claim 3, characterized in that: The guide assembly includes two sets of sleeves (801) fixedly connected to the connecting plate (6), and a slide rod (802) is slidably connected to the sleeve (801). One end of the slide rod (802) is fixedly connected to the support plate (5).

5. The railway freight car maintenance equipment according to claim 2, characterized in that: An anti-slip pad is provided below the support plate (5).

6. The railway freight car maintenance equipment according to claim 1, characterized in that: The travel limiting assembly includes two sets of L-shaped limiting blocks (401) fixedly connected to the equipment chassis (102). The two sets of L-shaped limiting blocks (401) are provided with threaded holes (402). Bolts (403) are threaded into the threaded holes (402). Nuts (404) for adjusting the state of the bolts (403) are threaded into the bolts (403). The ends of the two sets of bolts (403) can abut against the side of the slide bar (3).

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