Special lifting appliance for underframe and center sill of railway flatcar

Abstract

The utility model relates to the technical field of special lifting appliances for railway flatcar underframes and center sills, in particular to a special lifting appliance for railway flatcar underframes and center sills, which comprises a lifting ring, a lifting appliance main shaft, a fixed assembly body, a handle, a locking block and a clamping claw, the lower end of the lifting ring is rotationally connected with the fixed assembly body through a lifting appliance main shaft and is locked through a fixing nut; a handle is rotationally connected to the side face of the fixed assembly body, two sets of clamping claws are symmetrically and rotationally connected to the lower end of the fixed assembly body, a locking block is arranged in the middle of one set of clamping claws, and the locking block is matched with a protruding block in the middle of the handle. According to the lifting appliance, the forms of flatcar chassis and middle beam lifting appliances are unified, and the types of the lifting appliances are reduced; by adopting the lifting appliance with the design, lifting assistants can be reduced, and tightening and loosening can be realized directly by virtue of the gravity of the lifting appliance and the action of the gear.

Description

Technical Field

[0001] The utility model relates to the technical field of a railway flat car underframe and a special lifting device for a middle beam, in particular to a railway flat car underframe and a special lifting device for a middle beam. Background Art

[0002] In the field of railway freight, flat cars are important means of transportation. The structural strength and stability of their chassis and middle beams are crucial to ensure the safe transportation of goods. Vehicle repair and new construction are assembly line processes. The previous process needs to be transferred to the next process after completion. The slings are used frequently, so safe, reliable and easy-to-use slings are needed. The original slings and slings are easy to cause the vehicle to tilt and shake unstably, and the work intensity of the hoisting workers is high. Frequent lifting can easily cause the slings and slings to wear and break, which is a safety hazard. During the lifting process, the general sling may not be able to fully adapt to the shape and size of the chassis and middle beam, resulting in safety hazards such as shaking, tilting and even falling off during the lifting process.

[0003] Therefore, developing a special lifting device specifically for the railway flat car chassis and middle beam has become an important measure to improve lifting efficiency and ensure operation safety. This special lifting device needs to fully consider the structural characteristics of the chassis and middle beam, adopt reasonable structural design and material selection to ensure stability and safety during the lifting process. Utility Model Content

[0004] In order to overcome the existing deficiencies, the utility model provides a railway flat car underframe and a special hanging device for the middle beam.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a special hoist for the underframe and center beam of a railway flat car, comprising a lifting ring, a hoisting ring main shaft, a fixed assembly, a handle, a locking block and a clamping claw; the lower end of the lifting ring is rotatably connected to the fixed assembly through the hoisting ring main shaft and is locked by a fixing nut; the fixed assembly is rotatably connected to a handle on the side, and two groups of clamping claws are symmetrically rotatably connected to the lower end, and a locking block is provided in the middle of one group of the clamping claws, and the locking block matches the protrusion in the middle of the handle.

[0006] According to another embodiment of the utility model, the lifting ring is further provided with an arched structure, and a through hole is provided at the lower end for the main shaft of the lifting device to pass through.

[0007] According to another embodiment of the utility model, each group of the clamping claws includes a rotating part, a connecting part and two groups of claw teeth; the rotating part is rotatably connected to the inside of the lower end of the fixed assembly and is connected to the two groups of claw teeth through the connecting part.

[0008] According to another embodiment of the utility model, it further includes that a lifting device rotating shaft is provided in the middle of the rotating part for easy rotation inside the fixed assembly body, and the outer circle is a gear structure, and the two sets of clamping claws are meshed through the gears of the outer circle.

[0009] According to another embodiment of the utility model, it further includes that a locking block is provided on one group of the connecting parts, and the locking block forms an acute angle with the connecting part.

[0010] According to another embodiment of the utility model, the handle is rotatably connected to a handle fixing seat via a handle fixing shaft, and the handle fixing seat is arranged to fix the side of the assembly body.

[0011] The beneficial effect of the utility model is that the flat car chassis and the middle beam sling are unified in form, and the types of slings are reduced; the slings with this design can reduce the number of auxiliary lifting workers, and tightening and loosening can be achieved directly by relying on the gravity of the sling itself and the effect of gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 It is a side view of the utility model;

[0016] Figure 4 It is a bottom view of the utility model.

[0017] In the figure, 1 is a lifting ring, 2 is a main shaft of a sling, 3 is a fixed assembly, 4 is a handle, 5 is a locking block, 6 is a clamping claw, 7 is a fixing nut, 8 is a protrusion, 9 is a rotating part, 10 is a connecting part, 11 is a claw tooth, 12 is a rotating shaft of a sling, 13 is a gear, 14 is a handle fixing shaft, and 15 is a handle fixing seat. DETAILED DESCRIPTION

[0018] like Figure 1 It is a structural schematic diagram of the utility model, a special hoist for the underframe and center beam of a railway flat car, comprising a lifting ring 1, a hoisting ring spindle 2, a fixed assembly 3, a handle 4, a locking block 5 and a clamping claw 6; the lower end of the lifting ring 1 is rotatably connected to the fixed assembly 3 through the hoisting ring spindle 2, and is locked by a fixing nut 7; the fixed assembly 3 is rotatably connected to the side with a handle 4, and the lower end is symmetrically rotatably connected to two groups of clamping claws 6, one of which is provided with a locking block 5 in the middle of the clamping claws 6, and the locking block 5 matches the protrusion 8 in the middle of the handle 4.

[0019] According to another embodiment of the utility model, the lifting ring 1 is an arched structure, and a through hole is provided at the lower end for the main shaft 2 of the lifting device to pass through.

[0020] According to another embodiment of the utility model, each group of the clamping claws 6 includes a rotating portion 9, a connecting portion 10 and two groups of claw teeth 11; the rotating portion 9 is rotatably connected to the inside of the lower end of the fixed assembly 3, and the two groups of claw teeth 11 are connected through the connecting portion 10.

[0021] According to another embodiment of the utility model, the rotating part 9 further includes a sling rotating shaft 12 which is rotatably connected to the fixed assembly 3 in the middle, and the outer circle is a gear 13 structure, and the two sets of clamping claws 6 are meshed with each other through the outer circle gear 13.

[0022] According to another embodiment of the utility model, further comprising: a locking block 5 is provided on one group of the connecting parts 10 , and the locking block 5 forms an acute angle with the connecting part 10 .

[0023] According to another embodiment of the utility model, the handle 4 is rotatably connected to the handle fixing seat 15 through the handle fixing shaft 14 , and the handle fixing seat 15 is arranged to fix the side surface of the assembly body 3 .

[0024] During the specific operation process, when lifting, lift the handle 4 upwards, and the clamping claw 6 automatically locks the middle beam and the base frame under the gear 13 and the upper force; it automatically releases. After the sequence is completed, under the action of the gravity of the hoist itself, the clamping claw 6 opens upwards to the convex block 8 of the handle 4 to clamp the column lock block 5, and the hoist can automatically leave the middle beam lifting position without the help of manpower. Among them, the gears 13 in the two sets of clamping claws 6 are meshed with each other, and they are synchronously engaged when grasping and releasing, with uniform force and better stability.

[0025] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all will fall within the scope of protection of the present invention.

Claims

1. A special hanger for railway flat car underframe and middle beam, characterized in that: It comprises a lifting ring (1), a lifting device spindle (2), a fixed assembly (3), a handle (4), a locking block (5) and a clamping claw (6); the lower end of the lifting ring (1) is rotatably connected to the fixed assembly (3) via the lifting device spindle (2) and is locked via a fixing nut (7); the fixed assembly (3) is rotatably connected to the handle (4) on the side, and is symmetrically rotatably connected to two groups of clamping claws (6) at the lower end, one of the groups of clamping claws (6) having a locking block (5) in the middle, the locking block (5) matching with a protrusion (8) in the middle of the handle (4).

2. The railway flat car underframe and center beam special lifting device according to claim 1 is characterized in that: The lifting ring (1) is an arched structure, and a through hole is provided at the lower end for the lifting device main shaft (2) to pass through.

3. The railway flat car underframe and center beam special lifting device according to claim 1 is characterized in that: Each set of the clamping claws (6) comprises a rotating portion (9), a connecting portion (10) and two sets of claw teeth (11); the rotating portion (9) is rotatably connected inside the lower end of the fixed assembly (3) and is connected to the two sets of claw teeth (11) via the connecting portion (10).

4. The railway flat car underframe and center beam special hanger according to claim 3 is characterized in that: The rotating part (9) is provided in the middle with a lifting device rotating shaft (12) which is rotatably connected to the interior of the fixed assembly (3), and the outer circle is a gear (13) structure, and the two sets of clamping claws (6) are meshed with each other through the gear (13) on the outer circle.

5. The railway flat car underframe and center beam special lifting device according to claim 3 is characterized in that: A locking block (5) is provided on a group of the connecting portions (10), and the locking block (5) forms an acute angle with the connecting portion (10).

6. The railway flat car underframe and center beam special hanger according to claim 1 is characterized in that: The handle (4) is rotatably connected to a handle fixing seat (15) via a handle fixing shaft (14); the handle fixing seat (15) is arranged to fix a side surface of the assembly body (3).

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