Hoisting device for railway vehicle

Abstract

The utility model discloses a hoisting device for a railway vehicle, which relates to the related technical field of railway vehicles, and comprises a cross beam and a hoisting mechanism, the hoisting device is provided with two groups of sliding motors and pulleys, the pulleys can be driven to rotate through the rotation of the sliding motors, so that the pulleys move on the inner side of the cross beam, and meanwhile, a first connecting block is driven to move; the transverse movement of the device is achieved, then a heavy object is driven to move horizontally, the limitation of terrains is eliminated, a standby steel cable connected through a bolt is arranged, the situation that the steel cable is opened or broken and cannot be replaced is prevented, meanwhile, the overall weight of the device is increased, and shaking of the device in the moving process is reduced; by means of the design, the problem can be visually seen, the problem can be rapidly and effectively solved, the situation that the rope is broken or rotates and shakes in the working process is prevented, the anti-falling frame and the hook which are of a clamping groove structure are arranged, the danger caused by falling of heavy objects due to shaking in the transportation process is prevented, and the device is safer and more reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of railway vehicles, specifically a hoisting device for railway vehicles. Background Technology

[0002] With the rapid development of cities, railway systems have become increasingly important as an efficient means of public transportation. Against this backdrop, hoisting devices for railway vehicles have emerged. By providing a stable and reliable hoisting solution, these devices not only simplify the maintenance process but also ensure the safety of personnel, providing crucial support for the smooth operation of urban railway traffic and the reliability of vehicles.

[0003] According to the Chinese Utility Model Publication No. CN211664588U, a hoisting device installed inside a railway vehicle is disclosed. The hoisting device of this utility model is installed inside the vehicle and can rotate out of the railway car body. It has translation and lifting functions, and can hoist items from the ground outside the vehicle to the inside of the car body, which facilitates loading and unloading of items, saves labor costs, and greatly improves safety performance.

[0004] However, the following problems exist when implementing the above technical solution: In the load-bearing part of the device, after the gear two rotates, the roller will also roll on the upper part of the lower crossbeam of the translation arm, so that the goods are suspended on the lifting mechanism and move back and forth on the translation arm with the translation mechanism. Since the device only has one hook, there is a risk that the swaying will gradually increase due to inertia during the movement, which may cause the heavy object to collide with the vehicle body or people. Due to the different weights of the lifted objects, there is a risk that the device may be damaged or the object may fall off due to the large weight. Utility Model Content

[0005] The purpose of this invention is to provide a hoisting device for railway vehicles to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hoisting device for railway vehicles, comprising a crossbeam and a hoisting mechanism, wherein a fixing frame is provided on the outer side of the crossbeam, and a hoisting mechanism is provided on the outer side and below the crossbeam, a pulley is provided on the inner side of the crossbeam, and a first connecting block is provided at the front end of the pulley.

[0007] Preferably, a sliding motor is bolted to the front of the first connecting block, and two sets of sliding motors are provided. The rotating rod of the sliding motor passes through the first connecting block and forms a rotating structure with the pulley. The fixing frame is welded to the first connecting block.

[0008] Preferably, a spare steel cable is bolted to the bottom end of the crossbeam, a connecting frame is welded to the bottom end of the fixing frame, and a protective cover is threaded to the outside of the connecting frame.

[0009] Preferably, the protective cover is equipped with a steel cable inside, and a lifting motor is bolted to the left end of the protective cover. The lifting motor and the steel cable form a rotating structure. The lifting motor is a bidirectional motor, and two sets of lifting motors are provided.

[0010] Preferably, a pull rope cover is provided below the connecting frame, and a first gravity sensor is bolted to the front end of the pull rope cover. The inside of the pull rope cover is bolted to the steel cable.

[0011] Preferably, a second connecting block is welded to the bottom of the pull cord cover, a second gravity sensor is bolted to the front end of the second connecting block, and a hook is bolted to the bottom end of the second connecting block.

[0012] Preferably, the outer side of the hook is connected to an anti-slip bracket, the left end of the anti-slip bracket is welded to a rotating shaft, and the bottom end of the rotating shaft is connected to a movable frame.

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

[0014] This product is equipped with two sets of sliding motors and pulleys. The rotation of the sliding motors drives the rotation of the pulleys, which move them inside the crossbeam. At the same time, it drives the first connecting block to move, realizing the lateral movement of the device and thus the translation of the heavy object. This eliminates the limitations of terrain. The two sets of sliding motors make the device run more smoothly. A spare steel cable with bolted connection is provided to prevent the steel cable from coming loose or breaking and being unable to be replaced. At the same time, it increases the overall weight of the device and reduces the shaking during its movement, making the device more stable.

[0015] Equipped with two sets of gravity sensors at different positions, when lifting a heavy object, if the second gravity sensor alarms, it alerts the worker to stop work and check the status, indicating potential uneven load distribution. If both the first and second gravity sensors alarm simultaneously, it means the load has exceeded the limit. This design allows for a clear view of the problem and quick, effective resolution, preventing rope breakage or swaying during operation. The device also features a locking mechanism for the anti-slip frame and hooks. During lifting, the heavy object is passed through the movable frame and hooked into the hook. Due to the locking mechanism of the anti-slip frame and hook, the heavy object cannot be unloaded by manually releasing the locking mechanism. This design prevents the heavy object from falling during transport, making the device safer and more reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model.

[0017] Figure 2 This is a side view of the fixing frame structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the connection structure between the connecting frame and the protective cover of this utility model.

[0019] Figure 4 This is an enlarged schematic diagram of the hook structure of this utility model.

[0020] In the diagram: 1. Crossbeam; 2. Fixed frame; 3. Lifting mechanism; 301. Pulley; 302. First connecting block; 303. Sliding motor; 304. Spare steel cable; 305. Connecting frame; 306. Protective cover; 307. Steel cable; 308. Lifting motor; 309. Pull rope cover; 310. First gravity sensor; 311. Second connecting block; 312. Second gravity sensor; 313. Hook; 314. Anti-detachment frame; 315. Rotating shaft; 316. Movable frame. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] 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.

[0025] Please see Figure 1-4 An embodiment of this utility model is provided: a hoisting device for railway vehicles, including a crossbeam 1 and a hoisting mechanism 3. A fixing frame 2 is provided on the outer side of the crossbeam 1, and the hoisting mechanism 3 is provided on the outer side and below the crossbeam 1. A pulley 301 is provided on the inner side of the crossbeam 1, and a first connecting block 302 is provided at the front end of the pulley 301.

[0026] Specifically, a sliding motor 303 is bolted to the front of the first connecting block 302. Two sets of sliding motors 303 are provided. The rotating rod of the sliding motor 303 passes through the first connecting block 302 and forms a rotating structure with the pulley 301. The fixed frame 2 is welded to the first connecting block 302. The rotation of the sliding motor 303 can drive the rotation of the pulley 301, causing it to move inside the crossbeam 1. At the same time, it drives the first connecting block 302 to move, realizing the lateral movement of the device, and then driving the translation of the heavy object. The two sets of sliding motors 303 make the device run more smoothly.

[0027] Specifically, a spare steel cable 304 is bolted to the bottom of the crossbeam 1, and a connecting frame 305 is welded to the bottom of the fixing frame 2. A protective cover 306 is threaded to the outside of the connecting frame 305. The spare steel cable 304 is provided to prevent the steel cable from coming loose or breaking, and can be used for timely replacement. At the same time, it increases the overall weight of the device, reduces the shaking during its movement, and makes the device more stable.

[0028] Specifically, the protective cover 306 has a steel cable 307 installed inside. The left end of the protective cover 306 is bolted to a lifting motor 308. The lifting motor 308 and the steel cable 307 form a rotating structure. The lifting motor 308 is a bidirectional motor, and there are two sets of lifting motors 308. The rotation of the lifting motor 308 drives the rotation of the steel cable 307. Due to gravity, the steel cable 307 falls automatically. When the lifting motor 308 reverses, it can drive the steel cable 307 to rise, completing the lifting and hoisting operation. The protective cover 306 can protect the interior from wind and rain erosion, increasing the service life of the device.

[0029] Specifically, a pull rope cover 309 is installed below the connecting frame 305. The front end of the pull rope cover 309 is bolted to a first gravity sensor 310. The pull rope cover 309 is bolted to the steel cable 307. The pull rope cover 309 protects the steel cable 307 while increasing the weight of the lower half of the device and reducing the swaying of the steel cable 307. When lifting a heavy object, if the steel cable 307 causes the pull rope cover 309 to vibrate significantly, the first gravity sensor 310 will sound an alarm to remind the staff to stop working and prevent the steel cable 307 from breaking due to exceeding the lifting range.

[0030] Specifically, a second connecting block 311 is welded to the bottom of the pull rope cover 309. A second gravity sensor 312 is bolted to the front end of the second connecting block 311, and a hook 313 is bolted to the bottom end of the second connecting block 311. The hook 313 serves as the first load-bearing device. If significant shaking occurs at the connection point with the second connecting block 311 when a heavy object is hooked, the second gravity sensor 312 will sound an alarm, reminding the staff to stop working and check the status. Uneven load-bearing may occur. If multiple gravity sensors sound an alarm at the same time, it must be due to overloading.

[0031] Specifically, the outer slot of the hook 313 is connected to an anti-slip bracket 314. The left end of the anti-slip bracket 314 is welded to a rotating shaft 315. The bottom slot of the rotating shaft 315 is connected to a movable frame 316. When lifting, the heavy object is passed through the movable frame 316 and hooked into the hook 313. Due to the slot structure between the anti-slip bracket 314 and the hook 313, the heavy object cannot open the movable frame 316 in reverse. Only by manually unscrewing the slot structure between the anti-slip bracket 314 and the hook 313 can the heavy object be removed. This design prevents the heavy object from falling off during transportation and causing danger, making the device safer and more reliable.

[0032] Working principle: First, the lifting motor 308 is controlled to rotate, driving the steel cable 307 to rotate. Due to gravity, the steel cable 307 automatically falls, causing the lower rope cover 309 to descend, which in turn causes the hook 313 to descend. After reaching the designated position, the heavy object is passed through the movable frame 316 and hooked into the hook 313. The anti-derailment frame 314 is connected to the hook 313, and the lifting motor 308 is controlled to reverse, raising the heavy object. When lifting the heavy object, if the second gravity sensor 312 sounds an alarm, it reminds the staff to stop work and check the status. If uneven load distribution occurs, and the second gravity sensor 312 and the first gravity sensor 310 simultaneously issue an alarm, it indicates that the load has exceeded the load-bearing range. When the device is functioning normally, the second step controls the rotation of the sliding motor 303, which drives the pulley 301 to rotate, causing it to move inside the crossbeam 1. This also drives the first connecting block 302 to move, achieving lateral movement of the device and subsequently moving the load horizontally. After reaching the designated location, the falling process is repeated. Once the load lands smoothly, the connection between the anti-detachment frame 314 and the hook 313 is released, the load is removed, and the hoisting operation is completed.

[0033] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model 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 utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hoisting device for railway vehicles, comprising a crossbeam (1) and a hoisting mechanism (3), characterized in that: A fixing frame (2) is provided on the outside of the crossbeam (1), a hoisting mechanism (3) is provided on the outside and below of the crossbeam (1), a pulley (301) is provided on the inside of the crossbeam (1), and a first connecting block (302) is provided at the front end of the pulley (301). A sliding motor (303) is bolted to the front of the first connecting block (302). Two sets of sliding motors (303) are provided. The rotating rod of the sliding motor (303) passes through the first connecting block (302) and forms a rotating structure with the pulley (301). The fixing frame (2) is welded to the first connecting block (302).

2. The hoisting device for railway vehicles according to claim 1, characterized in that: The bottom end of the crossbeam (1) is bolted with a spare steel cable (304), and the bottom end of the fixing frame (2) is welded with a connecting frame (305). The outer side of the connecting frame (305) is threaded with a protective cover (306).

3. A hoisting device for railway vehicles according to claim 2, characterized in that: The protective cover (306) is equipped with a steel cable (307) inside. The left end of the protective cover (306) is bolted to a lifting motor (308). The lifting motor (308) and the steel cable (307) form a rotating structure. The lifting motor (308) is a bidirectional motor, and two sets of lifting motors (308) are provided.

4. A hoisting device for railway vehicles according to claim 2, characterized in that: A pull rope cover (309) is provided below the connecting frame (305). A first gravity sensor (310) is bolted to the front end of the pull rope cover (309). The inside of the pull rope cover (309) is bolted to the steel cable (307).

5. A hoisting device for railway vehicles according to claim 4, characterized in that: The bottom end of the pull cord cover (309) is welded with a second connecting block (311), the front end of the second connecting block (311) is bolted with a second gravity sensor (312), and the bottom end of the second connecting block (311) is bolted with a hook (313).

6. A hoisting device for railway vehicles according to claim 5, characterized in that: The hook (313) has an anti-detachment bracket (314) connected to its outer slot. The left end of the anti-detachment bracket (314) is welded with a rotating shaft (315). The bottom end of the rotating shaft (315) is connected to a movable frame (316).

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