CN112661003A - Safe rail clamping device and using method - Google Patents

Abstract

The invention relates to the technical field of construction machinery, in particular to a safe rail clamping device and a using method thereof.A clamp body is internally provided with a through groove for accommodating a steel rail, the top end of the through groove is provided with an inclined surface inclined to one side, and the bottom of the through groove is provided with a butting part for butting against the steel rail; the upper end surface of the wedge is adapted to the inclined surface arranged at the top end of the through groove, at least one side of the wedge extends to the outer side of the through groove, and a lifting hole is arranged at the outer side of the through groove; the wedge fastener is arranged on one side of the clamp body to fasten the wedge. Compared with the prior art, the steel rail clamp device has the advantages that the combined structure is simple and feasible, the assembly and the disassembly are easy, the steel rail clamp device is improved on the basis of the working mode of the existing clamp aiming at the problem that the reliable clamp is not available for steel rail hoisting in the field of urban rail laying construction, so that the steel rail can be stably and reliably clamped in the steel rail hoisting process, the occurrence of accidents is reduced, and meanwhile, the clamp is improved, so that the steel rail clamping work can be more conveniently carried out.

Description

Safe rail clamping device and using method

Technical Field

The invention relates to the technical field of construction machinery, in particular to a safe rail clamping device and a using method thereof.

Background

In the rail laying construction of urban rail transit in China, the blanking and hoisting of steel rails is one of important links in the rail construction. The steel rail hoisting in urban rail construction is generally realized by hoisting and blanking through a crane, however, the steel rail is a 25m standard steel rail, the hoisting and blanking space is large, the operation difficulty is large, and the danger coefficient is high.

At present, steel rail clamps in the rail laying construction of urban rail transit rails in China are solid clamps, the weight is large, the disassembly is laborious, and in the process of lifting the clamps, the clamps are easy to loosen due to vibration generated by the contact of the steel rails with the ground, and personnel injury accidents are caused.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a safe rail clamping device and a use method thereof, which can ensure that a steel rail is stably and reliably clamped in the steel rail lifting process.

In order to achieve the above object, a safety rail clamping device is designed, comprising: the fixture comprises a fixture body, wherein a through groove for accommodating a steel rail is formed in the fixture body, an inclined surface inclined towards one side is formed at the top end of the through groove, and a butting part for butting against the steel rail is arranged at the bottom of the through groove; the upper end surface of the wedge is adapted to the inclined surface arranged at the top end of the through groove, at least one side of the wedge extends to the outer side of the through groove, and a lifting hole is arranged at the outer side of the through groove; the wedge fastener is arranged on one side of the clamp body to fasten the wedge.

Preferably, the clamp body is provided with a steel plate which is obliquely arranged at the top of the through groove so as to form the inclined surface which is inclined to one side.

Preferably, the fixture body is of a hollow cubic structure, and a plurality of reinforcing ribs are arranged in the fixture body.

Preferably, the clamp body is provided with extending sections at the bottom of the through groove in an opposite direction to form the abutting portion.

Preferably, the wedge is a hollow structure.

Preferably, both sides of the wedge extend to the outer side of the through groove, one side of the wedge is matched with the wedge fastening piece, and the other side of the wedge is provided with the lifting hole.

Preferably, the cleat fastener is disposed on a higher side of the inclined surface.

Preferably, the wedge fastening member is provided with an adjusting bolt for applying a force to the wedge from a higher side of the inclined surface to a lower side of the inclined surface.

Preferably, the wedge fastening piece is U-shaped, and two ends of the U-shaped are rotatably connected with the clamp body.

The invention also relates to a using method of the safety rail clamping device, which comprises the following steps: the steel rail and the wedge are sequentially matched in the clamp body, and the steel rail is abutted between the abutting part matched with the clamp body and the wedge; applying a force to said cleat from a higher side of said ramp to a lower side of said ramp via a cleat fastener; the steel rail is hoisted through the hoisting hole of the wedge

Advantageous effects of the invention

Compared with the prior art, the combined structure is simple and feasible, the assembly and disassembly are easy, the steel rail clamp device is improved on the basis of the working mode of the existing clamp aiming at the problem that the steel rail hoisting does not have a reliable clamp in the existing urban rail laying construction field, so that the steel rail can be stably and reliably clamped in the steel rail hoisting process, the occurrence of accidents is reduced, meanwhile, the clamp is improved, the steel rail clamping work can be more conveniently carried out, and the combined structure has the advantages that:

1. through the improvement and the setting of structure for can adopt the mode of lifting by crane the wedge to lift by crane the rail when lifting by crane, it is safer to lift by crane.

2. The wedge fastener is additionally arranged, so that the position of the wedge can be fixed, and the accident that the rail clamping device is loosened due to the fact that the steel rail touches the ground is avoided.

3. The clamp body and the wedge are preferably of a hollow design, and are lighter in weight.

Drawings

Fig. 1a is a front view of a safety rail clamping device.

Fig. 1b is a left side view of the structure of a safety rail clamping device.

Fig. 1c is a top view of a safety rail clamping device.

Fig. 2a is a front view of the clamp body.

Fig. 2b is a left side view of the clamp body.

Fig. 2c is a top view of the clamp body.

Figure 3a is a front view of the wedge.

Figure 3b is a top view of the wedge.

FIG. 4a is a front view of a cleat fastener.

Figure 4b is a left side view of the cleat fastener.

Fig. 5 is a schematic view of an adjusting bolt.

In the figure: 1-a fixture body 2-a wedge 3-a wedge fastener 4-an adjusting bolt.

Detailed Description

The structure and principles of such apparatus and method will be apparent to those skilled in the art from the following further description of the invention, taken in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1a, 1b and 1c, the embodiment provides a safety rail clamping device and a use method thereof, and the safety rail clamping device comprises a clamp body, a wedge and a wedge fastener, wherein the clamp body and the wedge are used for being matched with each other to fix a steel rail, and the wedge fastener is used for further fastening the wedge, so that stable clamping and lifting of the steel rail are ensured. Hereinafter, each component will be further exemplified with reference to the drawings.

The fixture body is internally provided with a through groove for accommodating a steel rail, the top end of the through groove is provided with an inclined surface inclined towards one side, and the bottom of the through groove is provided with a butting part for butting against the steel rail. For example, as shown in fig. 2a, 2b and 2c, the fixture body has a cubic structure, the lower portion of the fixture body is provided with a through groove, the shape of the through groove is matched with the shape of the steel rail, the upper portion of the through groove is provided with an inclined steel plate welded on the through groove, the inclined steel plate is matched with the wedge, and the bottom of the through groove of the fixture body is oppositely provided with an extending section to form the abutting portion; the interior of the clamp is of a hollow structure, and only reinforcing ribs are welded for reinforcing the structure, so that the weight of the clamp body is greatly reduced; two lug plates are welded on the rear part and used for installing a wedge fastener.

The upper end surface of the wedge is adapted to the inclined surface arranged at the top end of the through groove, at least one side of the wedge extends to the outer side of the through groove, and a lifting hole is arranged at the outer side of the through groove. Referring to fig. 3a and 3b, in one embodiment, the wedge is a hollow structure, two sides of the wedge extend to the outer side of the through groove, one side of the wedge is a front end, the front end is provided with a through hole with a diameter of 35mm as a lifting hole for lifting the wedge, the other side of the wedge is a rear end, the wedge is matched with a wedge fastener, the lower part of the wedge is attached to a steel rail, and the wedge is tightly pressed on the surface of the steel rail under the action of an inclined plane at the upper part of the clamp body to provide friction force for lifting the steel rail.

Therefore, the lifting mode of the clamp device is changed through the arrangement of the structure, the original lifting clamp body is the wedge for lifting and fastening, the clamp can be lifted safely enough due to the change, the rail has the tendency of moving downwards under the action of gravity, and the wedge is in a shape with a small upper part and a large lower part, so that the downward movement of the rail is more tight in matching with the clamp.

The wedge fastening piece is arranged on the higher side of the inclined plane of the clamp body so as to fasten the wedge. Referring to fig. 4a, 4b and 5, in one embodiment, the wedge fastening member is disposed at one side of the through groove of the clamp body, where the opening is larger, the wedge fastening member is U-shaped, two ends of the wedge fastening member are provided with through holes for matching with the clamp body, and a nut is welded at the middle of the wedge fastening member for matching with the adjusting bolt. The adjusting bolt can limit the backward sliding of the adjusting bolt by rotating and clamping the wedge.

The wedge fastener is arranged to prevent the clamp from loosening due to upward vibration caused by sudden contact with the ground of the steel rail, so that a rotatable wedge fastener is additionally arranged on the clamp body, and a rotatable adjusting bolt is arranged in the wedge fastener, so that the position of the wedge can be limited by the adjusting bolt after the clamp clamps the steel rail, the wedge cannot move downwards, and the phenomenon that the clamp loosens due to vibration generated when the steel rail contacts the ground can be avoided. The change greatly increases the safety and reliability of the steel rail hoisting. Meanwhile, the size of the wedge is increased, so that the worker can knock the wedge more conveniently, the clamp body is hollow, the weight is light, and the design is more humanized.

When the device is used, the steel rail and the wedge are sequentially matched in the clamp body, and the steel rail is abutted and matched between the abutting part of the clamp body and the wedge; then applying a force to the wedge from the higher side of the inclined plane to the lower side of the inclined plane through a wedge fastener; and hoisting the steel rail through the hoisting hole of the wedge.

Examples

In the embodiment, the device mainly comprises a clamp body, a wedge fastener and a bolt, and the rail clamping device is safe in load of 10T, so that the safety and the reliability of the lifted steel rail are guaranteed. The fixture is of a 200mm multiplied by 170mm multiplied by 250mm square structure, the interior of the fixture is hollow and is provided with only one reinforcing rib, the lower part of the fixture is provided with a through hole of 72mm multiplied by 150mm, and the shape of the through hole is fit with that of the steel rail and is used for matching with the steel rail; the bottom surface of the wedge is matched with the steel rail surface, the upper inclined surface is matched with the clamp body, and the friction between the bottom surface and the steel rail surface is increased through the clamping force, so that the requirement of lifting the steel rail is met; the wedge fastener is fixedly arranged on the clamp body and can rotate relative to the clamp body, and the clamp body has a limiting effect on the wedge fastener horizontally, so that the wedge can be fixed by the adjusting bolt when the rail clamping device works, and accidents in the process of hoisting the steel rail are avoided.

During the use, will press from both sides the rail device safely and pass through the cooperation of anchor clamps body logical groove and rail surface, the logical groove macrostoma this moment is inboard towards the rail, and the osculum is towards the rail tip, later stir the wedge fastener upwards, get into the wedge tip from anchor clamps body rear portion, tightly laminate the rail with external force with the wedge. The wedge fastener is horizontally placed, and the adjusting bolt is rotated to be attached to the wedge.

And (4) lowering the lifting hook, connecting the steel wire rope with the lifting hook after penetrating through the through hole at the front end of the wedge, and lifting the rail clamping device. The steel rail is lowered to the working face, then the crane steel wire rope is taken out, the adjusting bolt is rotated to release the clamping state of the steel wire rope and the wedge, the wedge fastening piece is shifted upwards, the wedge is taken out by external force, and then the clamp body is taken out.

Repeating the above steps to perform the next operation.

Claims (10)

1. A safety rail clamping device, comprising:

the fixture comprises a fixture body, wherein a through groove for accommodating a steel rail is formed in the fixture body, an inclined surface inclined towards one side is formed at the top end of the through groove, and a butting part for butting against the steel rail is arranged at the bottom of the through groove;

the upper end surface of the wedge is adapted to the inclined surface arranged at the top end of the through groove, at least one side of the wedge extends to the outer side of the through groove, and a lifting hole is arranged at the outer side of the through groove;

the wedge fastener is arranged on one side of the clamp body to fasten the wedge.

2. A safety rail assembly as claimed in claim 1 wherein said clamp body is provided with an inclined steel plate at the top of said channel to form said inclined surface inclined to one side.

3. The safety rail clamping device as claimed in claim 1, wherein the clamp body is a hollow cubic structure, and a plurality of reinforcing ribs are arranged in the clamp body.

4. A safety rail device as claimed in claim 1, wherein said body has extensions at the bottom of said through slot to form said retaining portion.

5. A safety rail device according to claim 1 wherein the wedge is of hollow construction.

6. A safety rail clamping device as in claim 1, wherein both sides of said wedge extend to the outside of said through slot, and one side of said wedge is engaged with said wedge fastener, and the other side of said wedge is provided with said lifting hole.

7. A safety rail device according to claim 1 wherein said cleat fastener is located on the upper side of said ramp.

8. A safety rail device as claimed in claim 1 wherein the cleat retainer has an adjustment bolt for applying a force to the cleat from the upper side of the ramp to the lower side of the ramp.

9. A safety rail clamp apparatus as claimed in claim 1, wherein said cleat retainer is U-shaped, and both ends of said U-shape are pivotally connected to said clamp body.

10. A method of using a safety rail clamping device according to claim 1, characterized in that the method comprises the following steps:

the steel rail and the wedge are sequentially matched in the clamp body, and the steel rail is abutted between the abutting part matched with the clamp body and the wedge;

applying a force to said cleat from a higher side of said ramp to a lower side of said ramp via a cleat fastener;

and hoisting the steel rail through the hoisting hole of the wedge.

Images