Novel stainless steel metro vehicle crane structure and crane method

Abstract

The novel stainless steel metro vehicle crane structure comprises a crane bolt, a threaded block and a limiting plate, compared with a traditional crane structure and a traditional crane method, the scheme can provide an additional crane method, a hoisting tool can be directly fixed to the crane bolt, and the situation that a vehicle body is supported through a long and large cross beam tool from the lower portion of the vehicle is avoided; the manufacturing cost of the hoisting tool is saved, and the crane efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of rail vehicle body structure, and more particularly to a novel stainless steel subway vehicle crane structure and crane method. Background Technology

[0002] Current traditional methods for lifting, rigging, and rerailing stainless steel subway cars only involve using lifting fixtures, slings, and other tools to pass through the anti-slip steel plates on the underside beams of the car frame and the lower surface of the coupler seat. These methods are limited and simplistic. Summary of the Invention

[0003] The purpose of this invention is to enable a crane fixture to lift a vehicle by fixing it from the side, eliminating the need to lift the vehicle from below the underframe. This provides multiple crane methods for vehicle transportation and rescue, improving efficiency and saving costs.

[0004] To achieve the above objectives, this invention provides a novel stainless steel subway car crane structure, comprising a crane bolt, a threaded block, and a limiting plate. The crane bolt is dumbbell-shaped with internal hexagonal holes at both ends. One end of the crane bolt has an external thread, and a notch is provided on one side face of the underframe side beam. The threaded block is located in the groove of the underframe side beam and at the notch. A limiting plate is provided at the groove opening of the underframe side beam. During normal vehicle operation, the crane bolt is installed in the groove of the underframe side beam using a hexagonal wrench and fixed by the limiting plate. During vehicle hoisting and rerailing, the crane bolt can be removed using a hexagonal wrench, and then the external thread of the crane bolt is screwed in the opposite direction into the side of the underframe side beam away from the limiting plate. A limiting groove is provided at the end of the crane bolt away from the external thread for limiting connection of the lifting strap.

[0005] Furthermore, at least four sets of crane bolts are installed on the side beams of the base frame.

[0006] A novel method for hoisting a stainless steel subway car includes: using a hex wrench to remove the threaded block from the groove of the underframe side beam, and then screwing it back into the notch of the underframe side beam to fix it, so that the limiting groove of the hoist bolt itself is exposed on the outside of the car body. The car can be lifted by directly placing the hoisting tool on the limiting groove. When the car is running normally, the hoist bolt is installed in the groove of the underframe side beam using a hex wrench.

[0007] Furthermore, the crane tools include slings.

[0008] Compared to traditional crane structures and methods, this solution offers an additional crane method where lifting tools can be directly fixed to crane bolts, avoiding the need for long crossbeams to support the vehicle body from below, thus saving on the cost of manufacturing lifting tools and improving crane efficiency. Attached Figure Description

[0009] Figure 1A schematic diagram showing the invention installed in the side beam of the vehicle body chassis;

[0010] Figure 2 This is a schematic diagram of the invention in operation.

[0011] In the diagram: 1. Crane bolt; 2. Threaded block; 3. Limiting plate; 4. Base frame side beam; 5. Lifting strap. Detailed Implementation

[0012] Four sets of crane bolt structures (four lifting points per vehicle) are designed on the underframe side beam 4. The structure includes a sufficiently strong crane bolt 1, a threaded block 2, and a limiting plate 3. The structure is welded together to ensure sufficient strength. The crane bolt 1 is dumbbell-shaped with internal hexagonal holes at both ends. One end of the crane bolt 1 is provided with an external thread. A notch is provided on one end face of the underframe side beam 4. The threaded block 2 is located in the groove of the underframe side beam 4 and at the notch of the underframe side beam 4. The limiting plate 3 is provided at the groove of the underframe side beam 4. During normal vehicle operation, the crane bolt 1 is installed in the groove of the underframe side beam 4 with a hex wrench and fixed by the limiting plate 3. During vehicle lifting and rerailing, the crane bolt 1 can be removed with a hex wrench, and then the external thread of the crane bolt 1 is screwed in the opposite direction into the side of the underframe side beam 4 away from the limiting plate 3. The end of the crane bolt 1 away from the external thread is provided with a limiting groove for the limiting connection of the lifting strap 5.

[0013] During work ( Figure 2 Using a hex wrench, remove the crane bolt 1 from the threaded block 2, and then screw it in backwards into the notch of the underframe side beam 4 to fix it, so that the limiting groove of the crane bolt 1 is exposed on the outside of the vehicle body. The sling 5 can be directly put on the limiting groove to lift the vehicle. When the vehicle is running normally, the crane bolt 1 is installed in the groove of the underframe side beam 4 using a hex wrench.

Claims

1. A novel stainless steel subway car crane structure, characterized in that, The system includes a crane bolt, a threaded block, and a limiting plate. The crane bolt is dumbbell-shaped with internal hexagonal holes at both ends. One end of the crane bolt has an external thread, and a notch is provided on one side face of the underframe side beam. The threaded block is located in the groove of the underframe side beam and at the notch. A limiting plate is provided at the groove of the underframe side beam. During normal vehicle operation, the crane bolt is installed in the groove of the underframe side beam using a hex wrench and fixed by the limiting plate. During vehicle lifting and rerailing, the crane bolt can be removed using a hex wrench, and then the external thread of the crane bolt is screwed in the opposite direction into the side of the underframe side beam away from the limiting plate. The end of the crane bolt away from the external thread has a limiting groove for limiting connection of the lifting strap.

2. The novel stainless steel subway car crane structure according to claim 1, characterized in that, At least four sets of crane bolts shall be installed on the side beams of the base frame.

3. A novel method for using a stainless steel subway car crane, characterized in that, Specifically, it includes: Use a hex wrench to remove the threaded block from the groove in the underframe side beam, then screw it back into the notch in the underframe side beam to fix it, so that the limit groove of the crane bolt itself is exposed on the outside of the vehicle body. Crane tools can be used to directly put on the limit groove to lift the vehicle. When the vehicle is running normally, the crane bolt is installed in the groove in the underframe side beam using a hex wrench.

4. The novel stainless steel subway car crane method according to claim 3, characterized in that, The crane tools mentioned include slings.

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