Sliding device for railway bridge construction

Abstract

The utility model relates to the technical field of railways and rails, in particular to a sliding device for railroad bridge construction, which comprises a sliding chassis and two groups of sliding rails, a lifting device is installed at the upper end of the sliding chassis, a lifting table is arranged on the lifting device, grooves are symmetrically formed in the lower end of the sliding chassis in the front-back direction, a plurality of idler wheels are arranged on the upper sides of the two grooves, the two grooves are connected to the two sliding rails in a sleeving mode, and a brake assembly is installed in the sliding chassis. The motor drives the double-layer synchronous wheel, the four sets of second synchronous wheels, the two sets of synchronous belts and the four sets of screws to rotate, the four sets of screws rotate to drive the four sets of sliding blocks to move upwards, and the four sets of sliding blocks move upwards and drive the eight sets of connecting rods to enable the eight sets of brake rods to be attached to the left sides and the right sides of the two sets of connecting rods. The sliding chassis can be stopped from moving by attaching the eight sets of brake rods to the sliding rails, and the fixed-point brake effect is provided when the sliding chassis slides on the two sets of sliding rails.

Description

Technical Field

[0001] The utility model relates to the technical field of railway tracks, in particular to a sliding device for railway bridge construction. Background Art

[0002] Railway tracks are referred to as rails, iron rails, and tracks. Railway tracks are usually composed of two parallel steel rails, which are fixed on sleepers. Under the sleepers is ballast, which is fastened by rail supports, fasteners, rail holders, cleats, spring bars, railroad spikes and other railway accessories. Railway tracks are made of steel and can withstand greater weight than other materials. Sleepers are also called sleepers, ash sleepers, or road sleepers. Their function is to distribute the weight of the rails and the pressure on the rails, and to maintain a fixed track gauge. During the construction of railway tracks, a sliding device is required to transport tools and materials to the designated location.

[0003] Announcement No. CN217104766U discloses a sliding device for railway bridge construction based on railway tracks, including a sliding plate, both sides of the bottom of the sliding plate are fixedly connected with channel steels, the middle part of the bottom of the sliding plate is fixedly connected with a rectangular block, the interior of the rectangular block is penetrated by a rectangular long hole, and two positioning blocks are symmetrically arranged at the center position of the interior of the rectangular long hole, and the middle parts of the two positioning blocks are rotatably connected with a bidirectional screw rod, and both ends of the bidirectional screw rod are threadedly connected with a threaded barrel, but it has certain defects. When the sliding device is about to reach the specified position, the threaded barrel is fitted with the rail to stop the braking, and the sliding device cannot be effectively and quickly stopped at this position. It only has two points to fix with the rail for braking, there are safety hazards, and the braking effect is low. For this reason, we propose a sliding device for railway bridge construction to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a sliding device for railway bridge construction, so as to solve the problem proposed in the above-mentioned background technology that when the sliding device is about to reach a specified position, the threaded tube is engaged with the rail to brake and stop, and the sliding device cannot be effectively and quickly stopped at the position, and there are only two points for braking and fixing with the rail, which poses a safety hazard and has a low braking effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sliding device for railway bridge construction, comprising a sliding chassis and two sets of slide rails;

[0006] A lifting device is installed at the upper end of the sliding chassis, and a lifting platform is arranged on the lifting device. Grooves are symmetrically opened at the front and back ends of the sliding chassis, and multiple groups of rollers are arranged on the upper sides of two groups of grooves. The two groups of grooves are sleeved on two groups of slide rails. A brake assembly is installed in the sliding chassis, and the brake assembly is located at the upper ends of the two groups of grooves. A drive assembly is installed in the sliding chassis, and the drive assembly is connected to the brake assembly.

[0007] Preferably, a plurality of groups of wear-resistant pads are arranged in an array on the upper side of the lifting platform, and the plurality of groups of wear-resistant pads are semicircular.

[0008] Preferably, the brake assembly includes four groups of screw rods, which are symmetrically installed in the sliding chassis, and the sliding chassis is symmetrically opened with four groups of first movable grooves front and back, and the sliding chassis is symmetrically opened with four groups of second movable grooves front and back, the four groups of first movable grooves are connected with four groups of second movable grooves, and sliders are installed in the four groups of first movable grooves, and the four groups of sliders are threadedly sleeved on the lower ends of the four groups of screw rods, and connecting rods are hingedly installed on the left and right sides of the four groups of sliders, and brake rods are symmetrically installed in the four groups of second movable grooves for rotation, and the eight groups of brake rods are rotationally connected with the eight groups of connecting rods.

[0009] Preferably, the eight groups of brake levers are all glued with anti-skid pads on opposite sides of the lower ends, and the anti-skid pads are made of rubber material.

[0010] Preferably, the eight groups of connecting rods are rotatably connected to the middle parts of the eight groups of brake rods, and the upper ends of the eight groups of brake rods are rotatably connected to the upper ends of the four groups of second movable grooves.

[0011] Preferably, the driving assembly includes a motor, which is fixedly mounted in a sliding chassis, in which a double-layer synchronous wheel is installed, and the double-layer synchronous wheel is fixedly connected to the output shaft of the motor, and a second synchronous wheel is fixedly mounted on the upper ends of the four groups of screws, and two groups of synchronous belts are sleeved on the four groups of the second synchronous wheels and the double-layer synchronous wheel.

[0012] Preferably, the two groups of synchronous belts are bilaterally symmetrical and arranged in parallel and staggered manner.

[0013] Preferably, the inner walls of the four groups of the first movable grooves and the four groups of sliders are all square, and the four groups of the sliders are matched with the inner walls of the four groups of the first movable grooves.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model drives the double-layer synchronous wheels, four sets of second synchronous wheels, two sets of synchronous belts and four sets of screws to rotate through a motor; the rotation of the four sets of screws drives the four sets of sliders to move upward; the four sets of sliders move upward and drive the eight sets of connecting rods to fit the eight sets of brake rods on the left and right sides of the two sets of connecting rods; the sliding chassis can be stopped by fitting the eight sets of brake rods with the slide rails, providing a fixed-point braking effect when the sliding chassis slides on the two sets of slide rails. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a left-side cross-sectional schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a front view schematic diagram of the structure of the motor and four sets of second synchronous wheels in the utility model;

[0019] Figure 4 For this utility model Figure 2 A is a partial enlarged schematic diagram of the middle part.

[0020] In the figure: 1. sliding chassis; 2. lifting device; 3. lifting platform; 4. groove; 5. roller; 6. slide rail; 7. wear-resistant pad; 8. motor; 9. double-layer synchronous wheel; 10. second synchronous wheel; 11. synchronous belt; 12. screw; 13. first movable groove; 14. second movable groove; 15. slider; 16. connecting rod; 17. brake rod; 18. anti-slip pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , the utility model provides an embodiment: a sliding device for railway bridge construction, comprising a sliding chassis 1 and two sets of slide rails 6;

[0023] A lifting device 2 is installed on the upper end of the sliding chassis 1, and a lifting platform 3 is arranged on the lifting device 2. Grooves 4 are symmetrically opened at the lower end of the sliding chassis 1. Multiple groups of rollers 5 are arranged on the upper sides of the two groups of grooves 4. The two groups of grooves 4 are sleeved on the two groups of slide rails 6. A brake assembly is installed in the sliding chassis 1. The brake assembly is located at the upper ends of the two groups of grooves 4. A driving assembly is installed in the sliding chassis 1. The driving assembly is connected to the brake assembly. The device drives the brake assembly to fit the two groups of slide rails 6 through the driving assembly, so as to quickly stop the sliding chassis 1 on the two groups of slide rails 6. The lifting device 2 and the lifting platform 3 are prior art and are not described in detail.

[0024] Furthermore, a plurality of wear-resistant pads 7 are arranged in an array on the upper side of the lifting platform 3, and the plurality of wear-resistant pads 7 are semicircular. This structure reduces the wear on the lifting platform 3 caused by the sliding chassis 1 and the lifting platform 3 during transportation based on the plurality of wear-resistant pads 7 on the lifting platform 3.

[0025] Further, the brake assembly includes four sets of screws 12, which are symmetrically installed in the sliding chassis 1, and the sliding chassis 1 is symmetrically provided with four sets of first movable grooves 13, and the sliding chassis 1 is symmetrically provided with four sets of second movable grooves 14, the four sets of first movable grooves 13 are connected with the four sets of second movable grooves 14, and the four sets of first movable grooves 13 are all provided with sliders 15, and the four sets of sliders 15 are connected to the lower ends of the four sets of screws 12 by threads, and the four sets of sliders 15 are hinged on both sides. A connecting rod 16 is installed, and brake rods 17 are installed in the four sets of second movable grooves 14 to rotate symmetrically on the left and right. The eight sets of brake rods 17 are rotatably connected to the eight sets of connecting rods 16. When the four sets of screws 12 rotate, the four sets of sliders 15 are driven to move upward in the four sets of first movable grooves 13. The four sets of sliders 15 drive the eight sets of brake rods 17 through the eight sets of connecting rods 16 to fit on the left and right sides of the two sets of slide rails 6. The sliding chassis 1 can be braked and stopped on the two sets of slide rails 6 through the eight sets of brake rods 17.

[0026] Furthermore, anti-skid pads 18 are glued to the opposite sides of the lower ends of the eight sets of brake rods 17, and the anti-skid pads 18 are made of rubber material. This structure improves the friction between the eight sets of brake rods 17 and the two sets of slide rails 6 when they are in contact with each other, so that the eight sets of brake rods 17 can quickly stop the movement of the sliding chassis 1 when they are in contact with the two sets of slide rails 6.

[0027] Furthermore, the eight groups of connecting rods 16 are rotatably connected to the middle parts of the eight groups of brake rods 17, and the upper ends of the eight groups of brake rods 17 are rotatably connected to the upper ends of the four groups of second movable grooves 14. According to the connection and rotational installation positions of the eight groups of connecting rods 16 and the eight groups of brake rods 17, the eight groups of connecting rods 16 are moved through the four groups of sliders 15 to drive the lower ends of the eight groups of brake rods 17 to expand and shrink.

[0028] Furthermore, the driving assembly includes a motor 8, which is fixedly installed in the sliding chassis 1. A double-layer synchronous wheel 9 is installed in the sliding chassis 1, and the double-layer synchronous wheel 9 is fixedly connected to the output shaft of the motor 8. The upper ends of the four groups of screws 12 are fixedly installed with second synchronous wheels 10. Two groups of synchronous belts 11 are sleeved on the four groups of second synchronous wheels 10 and the double-layer synchronous wheel 9. This structure drives the double-layer synchronous wheel 9 to rotate through the output shaft of the motor 8, and the double-layer synchronous wheel 9 drives the four groups of second synchronous wheels 10 to rotate through the two groups of synchronous belts 11, so that the four groups of second synchronous wheels 10 drive the four groups of screws 12 to rotate, and the sliding chassis 1 can be quickly stopped.

[0029] Furthermore, the two sets of synchronous belts 11 are symmetrical and parallel and staggered. According to the positions of the two sets of synchronous belts 11, the double-layer synchronous wheel 9 drives the four sets of second synchronous wheels 10 at the left and right ends of the sliding chassis 1 to rotate through the two sets of synchronous belts 11, and there is no staggered transmission.

[0030] Furthermore, the inner walls of the four groups of first movable grooves 13 and the four groups of sliders 15 are all square, and the four groups of sliders 15 are adapted to the inner walls of the four groups of first movable grooves 13. This structure is based on the shapes of the inner walls of the four groups of first movable grooves 13 and the four groups of sliders 15, so that when the four groups of screws 12 drive the four groups of sliders 15 to move up and down in the four groups of first movable grooves 13, the four groups of sliders 15 will not rotate in the four groups of first movable grooves 13.

[0031] Working principle: When using the sliding chassis 1, the lifting device 2 and the lifting platform 3 on the sliding chassis 1 are used for transportation. The sliding chassis 1 moves on two sets of slide rails 6 through multiple sets of rollers 5. Figure 2 , Figure 3 and Figure 4 As shown, when the sliding chassis 1 moves and stops on the two sets of slide rails 6, the motor 8 is started, and the output shaft of the motor 8 drives the double-layer synchronous wheel 9 to rotate. The rotation of the double-layer synchronous wheel 9 drives the four sets of second synchronous wheels 10 to rotate through the two sets of synchronous belts 11. The rotation of the four sets of second synchronous wheels 10 drives the four sets of screws 12 to rotate. The rotation of the four sets of screws 12 drives the four sets of sliders 15 to move upward in the four sets of first active grooves 13. The upward movement of the four sets of sliders 15 drives the eight sets of connecting rods 16 to move. The eight sets of connecting rods 16 drive the eight sets of brake rods 17 to rotate in the four sets of second active grooves 14, and the lower ends of the eight sets of brake rods 17 are in contact with the left and right sides of the slide rails 6. The lower ends of the eight sets of brake rods 17 are in contact with the left and right sides of the two sets of slide rails 6, so that the sliding chassis 1 can be quickly stopped on the two sets of slide rails 6. The above is the entire working principle of the utility model.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A sliding device for railway bridge construction, comprising a sliding chassis (1) and two sets of sliding rails (6); Features: A lifting device (2) is installed at the upper end of the sliding chassis (1), and a lifting platform (3) is arranged on the lifting device (2). Grooves (4) are symmetrically opened at the front and rear ends of the sliding chassis (1), and multiple groups of rollers (5) are arranged on the upper sides of two groups of grooves (4). The two groups of grooves (4) are sleeved on two groups of slide rails (6). A brake assembly is installed in the sliding chassis (1), and the brake assembly is located at the upper ends of the two groups of grooves (4). A drive assembly is installed in the sliding chassis (1), and the drive assembly is connected to the brake assembly.

2. A sliding device for railway bridge construction according to claim 1, characterized in that: A plurality of groups of wear-resistant pads (7) are arranged in an array on the upper side of the lifting platform (3), and the plurality of groups of wear-resistant pads (7) are in a semicircular shape.

3. A sliding device for railway bridge construction according to claim 1, characterized in that: The brake assembly comprises four groups of screw rods (12), the four groups of screw rods (12) are symmetrically installed in the sliding chassis (1), the sliding chassis (1) is symmetrically provided with four groups of first movable grooves (13) front and back, the sliding chassis (1) is symmetrically provided with four groups of second movable grooves (14) front and back, the four groups of the first movable grooves (13) are connected with the four groups of the second movable grooves (14), the four groups of the first movable grooves (13) are all provided with sliders (15), the four groups of the sliders (15) are connected to the lower ends of the four groups of screw rods (12) by threads, the four groups of the sliders (15) are hingedly installed with connecting rods (16) on both sides, the four groups of the second movable grooves (14) are symmetrically installed with brake rods (17) in rotation, and the eight groups of the brake rods (17) are rotationally connected with the eight groups of connecting rods (16).

4. A sliding device for railway bridge construction according to claim 3, characterized in that: The eight groups of brake rods (17) are all glued with anti-skid pads (18) on opposite sides of the lower ends. The anti-skid pads (18) are made of rubber material.

5. A sliding device for railway bridge construction according to claim 3, characterized in that: The eight groups of connecting rods (16) are rotatably connected to the middle parts of the eight groups of brake rods (17), and the upper ends of the eight groups of brake rods (17) are rotatably connected to the upper ends of the four groups of second movable grooves (14).

6. A sliding device for railway bridge construction according to claim 3, characterized in that: The driving assembly comprises a motor (8), the motor (8) is fixedly mounted in a sliding chassis (1), a double-layer synchronous wheel (9) is mounted in the sliding chassis (1), the double-layer synchronous wheel (9) is fixedly connected to the output shaft of the motor (8), the upper ends of the four groups of screw rods (12) are all fixedly mounted with a second synchronous wheel (10), and two groups of synchronous belts (11) are sleeved on the four groups of the second synchronous wheels (10) and the double-layer synchronous wheel (9).

7. A sliding device for railway bridge construction according to claim 6, characterized in that: The two groups of synchronous belts (11) are bilaterally symmetrical and arranged in parallel and staggered manner.

8. The sliding device for railway bridge construction according to claim 3, characterized in that: The inner walls of the four groups of the first movable grooves (13) and the four groups of sliding blocks (15) are all square, and the four groups of sliding blocks (15) are adapted to the inner walls of the four groups of the first movable grooves (13).

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