Rail car for roadbed laying

Abstract

The utility model provides a railcar for paving a roadbed, which belongs to the technical field of railcars and comprises a car body, a damping spring shock absorber is fixedly mounted on the car body, a cargo tank is fixedly mounted at the shock absorption end of the damping spring shock absorber, an adjusting mechanism and a lifting mechanism are arranged at the bottom end of the car body, the adjusting mechanism comprises a first groove, and the lifting mechanism comprises a second groove. The first groove is formed in the bottom end of the vehicle body, the inner wall of the first groove is rotationally connected with a rotating rod through a bearing, the rotating rod is provided with positive and negative threads, the rotating rod is in threaded connection with a sliding block, and the sliding block slides on the inner wall of the first groove. By arranging the adjusting mechanism, the distance between the rail wheels on the two sides can be dynamically adjusted according to the requirements of different construction scenes, so that compatible operation of the rail car on rails of various widths is achieved, the application range of the rail car is greatly expanded, and the rail car can adapt to the complex working conditions such as transnational railway projects and special terrain construction.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rail car, especially relates to a rail car for subgrade laying. BACKGROUND

[0002] In the subgrade laying engineering of large-scale infrastructure projects such as railways and highways, the traditional construction method usually relies on wheel type engineering machinery and rail transport vehicles to operate respectively, and there are problems such as single equipment function and poor working condition adaptability.

[0003] Most of the existing rail cars adopt fixed gauge design, which cannot be compatible with different standard track widths, resulting in the need to frequently replace equipment when working in cross-country engineering or special terrain, which seriously affects the construction efficiency. In addition, the traditional rail car lacks convenient road and track switching function, and needs to rely on auxiliary transport equipment in the area where the track is not laid, which not only increases the cost, but also affects the construction continuity.

[0004] Therefore, the present application provides a rail car for subgrade laying to meet the needs. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the above background art, and provides a rail car for subgrade laying.

[0006] The utility model aims to solve the problems of the existing rail car with fixed gauge design and lack of road and track switching function.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a rail car for subgrade laying, comprising a car body, a damping spring shock absorber is fixedly installed on the car body, a cargo box is fixedly installed on the damping end of the damping spring shock absorber, an adjusting mechanism and a lifting mechanism are arranged at the bottom end of the car body, the adjusting mechanism comprises a first groove, the first groove is arranged at the bottom end of the car body, a rotating rod is rotatably connected to the inner wall of the first groove through a bearing, a forward and reverse thread is arranged on the rotating rod, a sliding block is threadedly connected to the rotating rod, the sliding block slides on the inner wall of the first groove, and a track wheel is arranged at the bottom end of the sliding block;

[0008] The lifting mechanism comprises a second groove, the second groove is arranged at the bottom end of the car body, a sliding sleeve is fixedly installed on the inner wall of the second groove, a limiting column is slidably arranged on the inner wall of the sliding sleeve, a receiving plate is fixedly installed at the bottom end of the limiting column, and a roller is arranged at the bottom end of the receiving plate.

[0009] Preferably, the number of the first grooves is two, the shape of the first groove is a square groove, the rotating rod is horizontally arranged, and the shape of the sliding block is a square block.

[0010] Preferably, a driving motor is fixedly mounted on the inner wall of the first groove, the driving motor is arranged horizontally, and a gear is fixedly mounted on the rotating shaft end of the driving motor.

[0011] Preferably, a gear ring is fixedly mounted on the rotating rod, and the gear ring is engaged with the gear.

[0012] Preferably, a double-shaft motor is fixedly mounted on the inner wall of the second groove, the double-shaft motor is arranged horizontally, a screw rod is fixedly mounted on the rotating shaft end of the double-shaft motor, the screw rod is arranged horizontally, and one end of the screw rod is rotatably connected to the inner wall of the second groove through a bearing.

[0013] Preferably, there are two screw rods, the thread directions of the two screw rods are opposite, a moving block is threadedly connected to the screw rod, a fixed block is fixedly installed on the top of the receiving plate, one end of the fixed block is rotatably connected to a support rod, and one end of the support rod is rotatably connected to one end of the moving block.

[0014] Preferably, a sliding rod is fixedly mounted on the inner wall of the second groove. The sliding rod is horizontally arranged and has a cylindrical shape. The moving block slides on the sliding rod.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] In the above scheme, by providing an adjustment mechanism, the spacing between the track wheels on both sides can be dynamically adjusted according to the needs of different construction scenarios, thereby realizing the compatible operation of the rail car on tracks of various widths, greatly expanding the scope of application of the rail car, enabling it to adapt to complex working conditions such as cross-border railway projects and special terrain construction; secondly, during the roadbed laying process, the track gauge can be flexibly adjusted according to changes in the bearing capacity of the foundation to avoid foundation collapse or track deformation caused by too narrow tracks, effectively ensuring construction safety. Compared with traditional fixed-gauge rail cars, this scheme significantly enhances the versatility and adaptability of the equipment to working conditions, while optimizing the construction process, providing efficient and flexible solutions for track engineering in the fields of railway construction, mining transportation, etc.

[0017] In the above scheme, by setting up a lifting mechanism, the rail vehicle can quickly and seamlessly switch between road and rail operating modes, greatly shortening the mode conversion time required by traditional equipment and greatly improving construction efficiency; secondly, the lifting mechanism enables the vehicle to have all-terrain passability, which can not only use the rail system for heavy load transportation, but also be flexibly maneuverable in construction areas where no tracks are laid, effectively expanding the scope of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom end of the overall structure of the present utility model;

[0021] Figure 3 This is a schematic diagram of the adjustment mechanism in the utility model;

[0022] Figure 4 It is a schematic diagram of the lifting mechanism in the utility model.

[0023] [Reference Signs]

[0024] 1. Vehicle body;

[0025] 2. Adjustment mechanism; 201. Track wheel; 202. First groove; 203. Rotating rod; 204. Gear ring; 205. Drive motor; 206. Gear; 207. Slider;

[0026] 3. Lifting mechanism; 301. Receiver plate; 302. Second groove; 303. Roller; 304. Slide rod; 305. Support rod; 306. Limiting column; 307. Fixed block; 308. Screw rod; 309. Sliding sleeve; 310. Dual-axis motor; 311. Moving block;

[0027] 4. Damping spring shock absorber; 5. Cargo box.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, devices and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] See also Figures 1-4 A rail vehicle for roadbed paving includes a vehicle body 1, on which a damping spring shock absorber 4 is fixedly mounted. The provision of the damping spring shock absorber 4 facilitates the improvement of the vibration reduction performance of the rail vehicle, which is beneficial to the use of the rail vehicle. A cargo box 5 is fixedly mounted on the damping end of the damping spring shock absorber 4. The provision of the cargo box 5 is used to transport materials for roadbed paving. An adjusting mechanism 2 and a lifting mechanism 3 are provided at the bottom end of the vehicle body 1. The provision of the adjusting mechanism 2 serves to adjust the distance between the rail wheels 201 on both sides, which facilitates the movement of the rail vehicle on tracks of different widths. The provision of the lifting mechanism 3 is used to lift and lower the rollers 303 so that the rollers 303 support the vehicle body 1, thereby facilitating the movement of the rail vehicle on the road, thereby improving the practicality of the rail vehicle. For the purpose of stability, the adjusting mechanism 2 includes a first groove 202, which is opened at the bottom end of the vehicle body 1. The first groove 202 is in the shape of a square groove. The first groove 202 is provided to undertake the installation of the rotating rod 203. The inner wall of the first groove 202 is rotatably connected to the rotating rod 203 through a bearing. The rotating rod 203 is provided with positive and negative threads. By providing the rotating rod 203 with positive and negative threads, it is easy to drive the sliders 207 on both sides to slide toward or in the opposite direction along the inner wall of the first groove 202. The rotating rod 203 is threadedly connected with a slider 207, and the slider 207 slides on the inner wall of the first groove 202. The setting of the slider 207 is used to undertake the installation of the track wheel 201, and the bottom end of the slider 207 is provided with the track wheel 201;

[0032] The lifting mechanism 3 includes a second groove 302, which is opened at the bottom end of the vehicle body 1. The second groove 302 is set to receive the installation of the sliding sleeve 309. The inner wall of the second groove 302 is fixedly installed with the sliding sleeve 309. The inner wall of the sliding sleeve 309 is slidingly provided with a limiting column 306. The setting of the sliding sleeve 309 and the limiting column 306 plays a role in limiting the movement of the receiving plate 301, which is beneficial for the vertical movement of the receiving plate 301. The bottom end of the limiting column 306 is fixedly installed with the receiving plate 301. The receiving plate 301 is set to receive the installation of the roller 303. The bottom end of the receiving plate 301 is provided with a roller 303.

[0033] See also Figure 1-Figure 3 There are two first grooves 202, and the shape of the first grooves 202 is a square groove. The rotating rod 203 is arranged horizontally, and the shape of the slider 207 is a square block. The inner wall of the first groove 202 is fixedly installed with a driving motor 205, and the driving motor 205 has forward and reverse rotation functions. The setting of the driving motor 205 is used to drive the gear 206 to rotate. The driving motor 205 is arranged horizontally, and the rotating shaft end of the driving motor 205 is fixedly installed with a gear 206. A gear ring 204 is fixedly installed on the rotating rod 203, and the gear ring 204 is engaged with the gear 206. By providing the gear 206 and the gear ring 204, when the driving motor 205 is working, it plays a role in driving the rotating rod 203 to rotate.

[0034] See also Figure 1 、 Figure 2 and Figure 4 The inner wall of the second groove 302 is fixedly installed with a double-output shaft motor 310, and the double-output shaft motor 310 has a forward and reverse rotation function. The double-output shaft motor 310 is set to drive the screw rod 308 to rotate. The double-output shaft motor 310 is set horizontally. The rotating shaft end of the double-output shaft motor 310 is fixedly installed with a screw rod 308, and the screw rod 308 is set horizontally. One end of the screw rod 308 is rotatably connected to the inner wall of the second groove 302 through a bearing. There are two screw rods 308, and the thread directions of the two screw rods 308 are opposite. By setting two screw rods 308 with opposite thread directions, it is easy to drive the moving blocks 311 on both sides to move along the surface of the slide rod 304 The two cams 312 are connected by a screw thread 308 to the movable block 311, and the movable block 311 is connected to the movable block 311 on the upper end of the supporting plate 301. The movable block 311 is connected to the movable block 311 on the upper end of the supporting plate 301. The movable block 311 is connected to the movable block 311 on the upper end of the supporting plate 301. The movable block 311 is connected to the movable block 311 on the upper end of the supporting plate 301. The movable block 311 is connected to the movable block 311 on the upper end of the supporting plate 301.

[0035] Working principle: during use, when it is necessary to adjust the spacing between the track wheels 201 on both sides, start the drive motor 205, and the drive motor 205 drives the rotating rod 203 to rotate. The rotating rod 203 is provided with positive and negative threads. When it rotates, it will drive the sliders 207 on both sides to slide toward each other along the inner wall of the first groove 202. When the sliders 207 on both sides move toward each other, they will drive the track wheels 201 on both sides to move toward each other until the track wheels 201 on both sides move to a suitable spacing. Through the above settings, it is convenient for the rail car to match tracks of different widths.

[0036] When the rail vehicle needs to move on the road, the double-output shaft motor 310 can be started, and the double-output shaft motor 310 drives the screw rods 308 on both sides to rotate. When the screw rods 308 on both sides rotate, since the thread directions of the screw rods 308 on both sides are opposite, the screw rods 308 on both sides will drive the moving blocks 311 on both sides to slide in the opposite direction along the surface of the slide rod 304 when rotating. When the moving blocks 311 on both sides slide in the opposite direction, they will drive the receiving plate 301 to move through the support rod 305 and the fixed block 307. Under the limiting action of the sliding sleeve 309 and the limiting column 306, the receiving plate 301 will move vertically downward until the roller 303 at the bottom end of the receiving plate 301 supports the vehicle body 1, thereby facilitating the movement of the rail vehicle on the road.

[0037] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. To provide a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention, but those skilled in the art will be able to fully understand this invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A track vehicle for roadbed paving, characterized in that: The vehicle comprises a vehicle body (1), a damping spring shock absorber (4) is fixedly mounted on the vehicle body (1), a cargo box (5) is fixedly mounted on the damping end of the damping spring shock absorber (4), and an adjusting mechanism (2) and a lifting mechanism (3) are provided at the bottom end of the vehicle body (1); The adjustment mechanism (2) comprises a first groove (202), the first groove (202) being opened at the bottom end of the vehicle body (1), the inner wall of the first groove (202) being rotatably connected to a rotating rod (203) via a bearing, the rotating rod (203) being provided with forward and reverse threads, the rotating rod (203) being threadedly connected to a slider (207), the slider (207) sliding on the inner wall of the first groove (202), and the bottom end of the slider (207) being provided with a track wheel (201); The lifting mechanism (3) comprises a second groove (302), the second groove (302) being opened at the bottom end of the vehicle body (1), a sliding sleeve (309) being fixedly mounted on the inner wall of the second groove (302), a limiting column (306) being slidably mounted on the inner wall of the sliding sleeve (309), a receiving plate (301) being fixedly mounted on the bottom end of the receiving plate (301), and a roller (303) being disposed at the bottom end of the receiving plate (301).

2. The rail vehicle for roadbed paving according to claim 1, characterized in that: The number of the first grooves (202) is two, and the shape of the first grooves (202) is a square groove. The rotating rod (203) is arranged horizontally, and the shape of the slider (207) is a square block.

3. The track vehicle for roadbed paving according to claim 1, characterized in that: A driving motor (205) is fixedly mounted on the inner wall of the first groove (202), the driving motor (205) is arranged horizontally, and a gear (206) is fixedly mounted on the end of the rotating shaft of the driving motor (205).

4. The track vehicle for roadbed paving according to claim 3, characterized in that: A gear ring (204) is fixedly mounted on the rotating rod (203), and the gear ring (204) is meshed with the gear (206).

5. The rail vehicle for roadbed paving according to claim 1, characterized in that: A double-shaft motor (310) is fixedly mounted on the inner wall of the second groove (302), the double-shaft motor (310) being arranged horizontally, a screw rod (308) is fixedly mounted on the rotating shaft end of the double-shaft motor (310), the screw rod (308) being arranged horizontally, and one end of the screw rod (308) is rotatably connected to the inner wall of the second groove (302) via a bearing.

6. The track vehicle for roadbed paving according to claim 5, characterized in that: There are two screw rods (308), and the thread directions of the two screw rods (308) are opposite. A moving block (311) is threadedly connected to the screw rod (308). A fixed block (307) is fixedly installed on the top of the receiving plate (301). One end of the fixed block (307) is rotatably connected to a support rod (305), and one end of the support rod (305) is rotatably connected to one end of the moving block (311).

7. The track vehicle for roadbed paving according to claim 6, characterized in that: A sliding rod (304) is fixedly mounted on the inner wall of the second groove (302). The sliding rod (304) is arranged horizontally and is in the shape of a cylindrical rod. The moving block (311) slides on the sliding rod (304).

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