A rapid loading hoist for track slabs

Abstract

This utility model provides a rapid track slab loading hoist, including a lifting frame with a load-bearing frame on each of its left and right sides. The inner sides of the two load-bearing frames are connected by a tension spring, and a traction rope is provided on the outer side of each load-bearing frame. A load-bearing plate or block extending inward is provided at the bottom of each load-bearing frame, forming an L-shaped structure. The advantages of this utility model are: by adopting the above technical solution, this utility model uses mechanical clamping, allowing for large contact surface load-bearing, and also features an anti-collision design, thus achieving the requirement of rapid track slab loading. It reduces the cumbersome disassembly and assembly of bolts, reduces high-altitude operations, improves operational safety, increases loading efficiency, and avoids collision damage between the track slab and the hoist.

Description

Technical Field

[0001] This utility model belongs to the field of track slabs, and in particular relates to a rapid loading hoist for track slabs. Background Technology

[0002] China's high-speed railways are under rapid construction, and to improve efficiency and ensure quality, prefabricated track slabs are used. Each track slab weighs approximately 8 tons. Previously, loading and transporting track slabs required first installing eight bolts to connect lifting lugs to the slab, then connecting it to a lifting device via lifting rings. After loading onto the train, the lifting lugs and rings were removed. This method was complex, inefficient, frequently caused damage to the track slabs, and posed safety hazards when stacking them at high altitudes, failing to meet the current requirements for rapid loading and transportation. Summary of the Invention

[0003] In view of this, the present invention aims to provide a rapid loading hoist for track slabs.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A track slab rapid loading hoist includes a hoist, with a load-bearing frame on each of the left and right sides of the hoist, the inner sides of the two load-bearing frames being connected by a tension spring, and a traction rope being provided on the outer sides of each of the two load-bearing frames. The bottom of the load-bearing frame is provided with an inwardly extending load-bearing plate or load-bearing block, so that the load-bearing frame and the load-bearing plate or load-bearing block form an L-shaped structure.

[0005] Furthermore, a pad is provided on the inner side of the L-shaped structure to prevent collisions when in contact with the track plate.

[0006] Furthermore, each of the load-bearing frames includes two load-bearing ribs, which are connected at the midpoint by a stiffener. A tension spring is installed at the center of the inner side of the stiffener, and a traction rope is installed at the center of the outer side of the stiffener. The traction rope is tied together at the middle position of the stiffener, and the length of the traction rope is determined according to the height of the track plates when they are loaded and stacked.

[0007] The load-bearing block is a load-bearing angle steel, and a load-bearing angle steel is installed at the bottom of the two load-bearing ribs on the same side.

[0008] Furthermore, side pads and bottom pads are respectively provided on the inner side of the load-bearing angle steel. The pads are connected to the load-bearing angle steel by adhesive bonding.

[0009] Furthermore, the load-bearing rib is connected to the hanger via a U-shaped lifting ring.

[0010] Furthermore, the top of the hanger is fixed with four lifting lugs, which are distributed at the four corners of the hanger. The hanger is connected to the lifting equipment through the lifting lugs.

[0011] Furthermore, the pad is made of a flexible material, including rubber or asbestos. This prevents impacts when in contact with the track slab.

[0012] Furthermore, the hanger is welded from square steel tubes or H-beams, and its length and width dimensions are adapted to the dimensions of the matching track plate; the lifting lugs are installed on the hanger by welding; and the load-bearing angle steel is fixed to the bottom of the load-bearing rib plate by welding.

[0013] Furthermore, the load-bearing ribs are made of steel plates with a thickness of ≥20mm; the stiffening plates are made of steel plates with a thickness of ≥10mm; the load-bearing angle steels are made of angle steels with a leg width of ≥100mm and a thickness of ≥12mm; and the lifting lugs are made of steel plates with a thickness of ≥20mm.

[0014] The advantages and positive effects of this utility model are as follows: Due to the adoption of the above technical solution, this utility model uses mechanical clamping, allowing for large contact surface load-bearing capacity, and also features an anti-collision design, thus achieving the requirement for rapid loading of track slabs. It reduces the cumbersome disassembly and assembly of bolts, reduces high-altitude operations, improves operational safety, increases loading efficiency, and avoids collision damage between the track slab and the lifting device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the front view of this utility model; Figure 3 This is a side view of the present invention.

[0017] In the diagram: 1. Hanger; 2. Lifting lug; 3. U-shaped lifting ring; 4. Load-bearing rib; 5. Stiffening plate; 6. Tension spring; 7. Traction rope; 8. Load-bearing angle steel; 9. Side pad; 10. Bottom pad. Detailed Implementation

[0018] 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 scope of protection of the present utility model. In the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the structure of the device will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and height should be included.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0023] like Figures 1 to 3 As shown, this utility model includes a hanger 1, with a load-bearing frame on each of its left and right sides. Each load-bearing frame includes two load-bearing ribs 4, with the midpoint of the two load-bearing ribs 4 connected to the same stiffening plate 5. A tension spring 6 is installed at the center of the inner side of the stiffening plate 5, meaning that the two ends of the tension spring 6 are connected to the stiffening plates 5 on both sides respectively via hooks. A traction rope 7 is installed at the center of the outer side of the stiffening plate 5; the traction rope 7 is tied and connected at the middle position of the stiffening plate 5, and the length of the traction rope 7 is determined according to the height of the track slabs when loaded and stacked.

[0024] The bottom of the two load-bearing ribs 4 on the same side is fitted with the same load-bearing angle steel 8. The load-bearing angle steel 8 and the load-bearing ribs 4 form an L-shaped structure.

[0025] Side pads 9 and bottom pads 10 are respectively attached to the inner side of the load-bearing angle steel 8. The pads are made of flexible materials, including rubber or asbestos, to prevent impact when in contact with the track slab.

[0026] The load-bearing rib plate 4 is connected to the hanger 1 via a U-shaped lifting ring 3.

[0027] The top of the hanger 1 is fixed with four lifting lugs 2, which are distributed at the four corners of the hanger 1. The hanger 1 is connected to the lifting equipment through the lifting lugs 2.

[0028] The hanger 1 is welded from square steel tubes or H-beams; its length and width dimensions are compatible with the dimensions of the matching track slab. The lifting lugs 2 are installed on the hanger 1 by welding; the load-bearing angle steel 8 is fixed to the bottom of the load-bearing rib plate 4 by welding.

[0029] The load-bearing rib plate 4 is made of steel plate with a thickness of ≥20mm; the stiffening plate 5 is made of steel plate with a thickness of ≥10mm; the load-bearing angle steel 8 is made of angle steel with a leg width of ≥100mm and a thickness of ≥12mm; the lifting lug 2 is made of steel plate with a thickness of ≥20mm.

[0030] This utility model is applicable to the rapid loading or unloading of track slabs when they are placed horizontally. The working process is as follows: When using overhead cranes, gantry cranes, truck cranes, or other lifting equipment to transfer this utility model above a horizontally placed track slab via the lifting lugs 2, two people pull the traction ropes 7 outwards from both sides of the lifting device, making the distance between the two load-bearing angle steels 8 greater than the width of the track slab. Then, the lifting device descends. When the bottom pad 10 inside the load-bearing angle steel 8 is lower than the bottom of the track slab, the two people release the traction ropes 7. At this time, the two stiffening plates 5 are tightened by the tension springs 6, causing the two load-bearing angle steels 8 to move closer to the middle, so that the two side pads 9 are tightly attached to the two sides of the track slab and mechanically clamped to prevent the track slab from falling off. Then, the lifting device rises, so that the two bottom pads 10 make large-area contact with the bottom surfaces of the two sides of the track slab. Then, the lifting device continues to rise. At this time, the track slab can be lifted onto the transport vehicle using the lifting equipment.

[0031] After being moved to the required position, the lifting device is lowered. Once the track slab is placed securely, the lifting device continues to descend. At the same time, two people pull the traction rope 7 outward from both sides of the lifting device to make the distance between the two load-bearing angle steels 8 greater than the width of the track slab. Then, the lifting equipment is operated to raise the lifting device. When the load-bearing angle steels 8 are higher than the track slab, the two people release the traction rope 7. At this point, one track slab has been loaded onto the vehicle, and the lifting operation for the next track slab can be repeated.

[0032] Using this invention for loading track slabs reduces the tedious disassembly and assembly of bolts, minimizes high-altitude work, improves operational safety, increases loading efficiency, and avoids collisions and damage between the track slabs and the lifting equipment. A comparison of the time required to load four track slabs per vehicle shows that the original method took approximately 30 minutes, while this invention only takes 10 minutes, significantly improving work efficiency.

[0033] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A rapid loading hoist for track slabs, characterized in that: Includes a hanger (1), with a load-bearing frame on each of the left and right sides of the hanger (1), the inner sides of the two load-bearing frames are connected by a tension spring (6), and a traction rope (7) is provided on the outer side of each of the two load-bearing frames. The bottom of the load-bearing frame is provided with an inwardly extending load-bearing plate or load-bearing block, so that the load-bearing frame and the load-bearing plate or load-bearing block form an L-shaped structure.

2. The track slab rapid loading hoist according to claim 1, characterized in that: A pad is provided on the inner side of the L-shaped structure.

3. The track slab rapid loading hoist according to claim 1, characterized in that: Each of the load-bearing frames includes two load-bearing ribs (4), which are connected at the midpoint by a stiffener (5). A tension spring (6) is installed at the center of the inner side of the stiffener (5), and a traction rope (7) is installed at the center of the outer side of the stiffener (5). The load-bearing plate is a load-bearing angle steel (8), and a load-bearing angle steel (8) is installed at the bottom of the two load-bearing ribs (4) on the same side.

4. The track slab rapid loading hoist according to claim 3, characterized in that: The inner side of the load-bearing angle steel (8) is provided with a side pad (9) and a bottom pad (10).

5. The track slab rapid loading hoist according to claim 3, characterized in that: The load-bearing rib (4) is connected to the hanger (1) via a U-shaped lifting ring (3).

6. The track slab rapid loading hoist according to claim 3, characterized in that: The top of the hanger (1) is fixed with a lifting lug (2), and there are four lifting lugs (2) distributed at the four corners of the hanger (1).

7. The track slab rapid loading hoist according to claim 2, characterized in that: The pad is made of a flexible material, including rubber or asbestos.

8. The rapid loading hoist for track slabs according to claim 6, characterized in that: The hanger (1) is made of square steel pipe or H-beam welded together; the lifting lug (2) is installed on the hanger (1) by welding; the load-bearing angle steel (8) is fixed to the bottom of the load-bearing rib plate (4) by welding.

9. The track slab rapid loading hoist according to claim 6, characterized in that: The load-bearing rib (4) is made of steel plate with a thickness of ≥20mm; the stiffening plate (5) is made of steel plate with a thickness of ≥10mm; the load-bearing angle steel (8) is made of angle steel with a leg width of ≥100mm and a thickness of ≥12mm; the lifting lug (2) is made of steel plate with a thickness of ≥20mm.

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