CN212147025U

CN212147025U - Rope saw device for pier beam

Info

Publication number: CN212147025U
Application number: CN202020209719.7U
Authority: CN
Inventors: 张腾辉; 张维建; 孙智琦; 裴丙; 顾文杰
Original assignee: China Railway 24th Bureau Group Co Ltd; China Railway 24th Bureau Group Zhejiang Engineering Testing Co Ltd
Current assignee: China Railway 24th Bureau Group Co Ltd; China Railway 24th Bureau Group Zhejiang Engineering Testing Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-12-15
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses a rope saw device that mound roof beam was used belongs to cutting device, including action wheel, first take-up pulley, second take-up pulley, first leading wheel, second leading wheel and around the rope that cuts on each flywheel, the action wheel is located the coplanar with first take-up pulley, second take-up pulley, first take-up pulley all is equipped with the guide rail with second take-up pulley below, first take-up pulley removes on the guide rail through servo motor control with the second take-up pulley, and the rope that cuts that can make mound roof beam one side through the removal of take-up pulley tightens up to accomplish the cutting to the mound roof beam, the construction space who occupies during operation is less, and the stroke is great, is fit for the operation of mound roof beam cutting, has solved among the prior art rope saw device and has need accomplished the cutting through all flywheels of horizontal migration rail mobility, motor, problem that occupation space is big.

Description

Rope saw device for pier beam

Technical Field

The utility model relates to a cutting device especially relates to a rope saw device that mound roof beam was used.

Background

In the construction of the continuous beam bridge, after the beam body is closed, the temporary pier beam needs to be detached so as to achieve the system conversion from rigid frame to continuous frame. At present, a manual hand-held pneumatic rock drill is generally adopted to chisel off temporary pier beams of a continuous beam bridge. When in construction, firstly the steel bar protective layer around the temporary pier beam is stripped, then the anchoring steel bar is cut off by gas cutting, and finally the rest part is chiseled. When the method is implemented, the construction space of the position of the temporary pier beam is narrow, so that manual chiseling construction is inconvenient, high-altitude operation is realized, and the personal safety risk is high; in addition, the temporary pier beam is high in design strength, the steel bars are dense, manual chiseling is very difficult, so that the dismantling efficiency is low, the follow-up work is directly influenced, the management targets such as safety, cost and progress cannot be well achieved, and therefore a new device needs to be designed for dismantling the temporary pier beam.

The existing rope saw device is mainly used for cutting materials such as stone materials and the like which do not have requirements on construction space, so that the cutting can be completed by moving the whole rope saw device, and in the cutting operation of the temporary pier beam, due to the fact that the construction space is limited, the stroke required by rope cutting is large, and the cutting cannot be performed through the movement of the whole rope saw device.

For example, the "flywheel driving device for a rope saw" disclosed in the chinese patent document, which is published under the publication number CN209794220U, includes a left flywheel set, a right flywheel set, a diamond rope saw, a flywheel driving motor, and a horizontal displacement rail, and has disadvantages that all the flywheels and motors need to be moved by the horizontal displacement rail to complete cutting, and is not suitable for operations requiring a large stroke and limited construction space, such as pier beam cutting.

Disclosure of Invention

The utility model relates to an overcome prior art, the cutting is accomplished in the great construction space of rope saw device needs to the limited problem of stroke provides a rope saw device that mound roof beam was used, and its construction space who occupies in the cutting process is less to can realize great stroke.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model relates to a rope saw device that mound roof beam was used, which comprises a bracket, be equipped with a plurality of flywheels on the support, be equipped with the rope that cuts that is used for cutting the mound roof beam on a plurality of flywheels, a plurality of flywheels include action wheel, first tight pulley, second take-up pulley, first leading wheel, second leading wheel, cut the rope and form the closed loop around on mound roof beam, first leading wheel, first tight pulley, action wheel, second take-up pulley, second leading wheel in proper order, the action wheel is located the coplanar with first tight pulley, second take-up pulley, first tight pulley all is equipped with the guide rail with second take-up pulley below, first tight pulley and second take-up pulley pass through servo motor control and remove on the guide rail.

Due to the limitation of construction space, the bracket of the device is inconvenient to move horizontally during the cutting process, and the cutting rope must move from one side of the pier beam to the other side when the pier beam is cut. Because the total length of the closed loop cutting rope is fixed, the distance between the first tensioning wheel and the driving wheel and the distance between the first tensioning wheel and the second tensioning wheel and the distance between the first tensioning wheel and the distance between the second tensioning wheel and the distance between the first guide wheel and the distance between the second tensioning wheel and the distance between the second guide wheel and the distance between the second tensioning wheel and the distance between the first guide wheel and the distance between the second tensioning wheel and the distance between the second guide wheel are increased, the cutting rope on one side of the pier beam is gradually tightened, the pier beam is cut. Because the action wheel is at the rotation in-process, the tension of its both sides can be different, the rope cutting tension of its motion direction front side can be less than the tension of the rope cutting of its motion direction rear side, thereby lead to the rope cutting tension of mound roof beam both sides different, thereby make mound roof beam both sides can not cut simultaneously, one side cutting is faster, the opposite side cutting is slower, because first take-up pulley and second take-up pulley below all are equipped with the guide rail, two take-up pulleys can remove with different speeds, through the debugging, increase the take-up pulley translation rate of action wheel motion direction rear side, can increase this side rope cutting tension, thereby it is the same to keep mound roof beam both sides rope cutting tension as far as possible, make the mound roof beam can be cut by even, improve cutting efficiency. The leading wheel can increase the contained angle that cuts rope and mound roof beam side, prevents to lead to the cutting force not enough because the contained angle undersize. When the tensioning wheel is moved, the distances between the tensioning wheel and the guide wheel and between the tensioning wheel and the driving wheel are increased, so that the maximum tensioning amount of the pier beam side cutting rope is twice of the sum of the strokes of the two guide rails, and the stroke of the pier beam side cutting rope is greatly increased compared with that of a common rope saw mechanism. The servo motor can conveniently control the stroke and the speed of the tension wheel moving on the guide rail.

Preferably, the first guide wheel and the second guide wheel are both mounted on the support through a mounting frame, a rotating shaft parallel to the support is arranged on the mounting frame, and the first guide wheel and the second guide wheel are rotatably connected with the rotating shaft; when the temporary pier beam is cut, in order to conveniently take down the cut temporary pier beam, the cutting surface needs to be an inclined surface, the inclined angle of the inclined surface is different according to the difference of actual factors such as the size and the shape of the pier beam, if the inclined angle is too large, the cut temporary pier beam can automatically fall off, and if the inclined angle is too small, the cut temporary pier beam is difficult to push down; and the guide wheel can be adjusted through the pivot and the contained angle between the horizontal plane to can adapt to different cutting angles.

Preferably, the support comprises an upper table top and a lower table top, and a jacking table is arranged between the upper table top and the lower table top; when the pier beam is cut, the device needs to be placed on the working platform, after the device is placed on the working platform, the height of the device needs to be properly adjusted so as to adjust the angle of the cutting surface, and the height of the working platform after being fixed is difficult to adjust, so that the height of the main body part of the device can be conveniently adjusted through the jacking table.

Preferably, a first vertical wheel is arranged between the first guide wheel and the first tensioning wheel, the lower end of the first vertical wheel is tangent to the plane where the first tensioning wheel is located, a second vertical wheel is arranged between the second guide wheel and the second tensioning wheel, the lower end of the second vertical wheel is tangent to the plane where the second tensioning wheel is located, and the cutting rope is in contact with the lower end of the first vertical wheel and the lower end of the second vertical wheel; because the cutting surface on the pier beam is an inclined surface, the cutting rope passing through the guide wheel is also inclined relative to the horizontal plane, and the vertical wheel tangent to the plane where the tension wheel is located can guide the cutting rope to the horizontal direction, so that the cutting rope passing through the tension wheel is always superposed with the plane where the tension wheel is located, and the cutting rope is prevented from being separated from the tension wheel in the moving process.

Preferably, the outer side of the first guide wheel is tangent to the plane where the first vertical wheel is located, and the outer side of the second guide wheel is tangent to the plane where the second vertical wheel is located; the rope cutting direction passing through the vertical wheel is always coincided with the plane of the vertical wheel through the structure, so that the rope cutting is prevented from being separated from the vertical wheel in the moving process.

Preferably, the bracket is provided with a plurality of lifting rings for lifting the device; because the device needs to be placed on the working platform, the size and the weight of the device are larger, and the device can be conveniently lifted through the lifting ring.

Preferably, the support is provided with lightening holes, so that the weight of the device can be effectively reduced through the lightening holes, and the device is convenient to carry.

Therefore, the utility model discloses following beneficial effect has: (1) the construction space occupied during working is small, the stroke is large, and the method is suitable for pier and beam cutting operation; (2) the device can adapt to different angles of the cutting surface of the pier beam; (3) when the flywheel works, the cutting rope is not easy to fall off from the flywheel; (4) the carrying is convenient.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a plan view of the present invention.

In the figure: 1. the device comprises a support 2, an upper table top 3, a lower table top 4, a jacking table 5, a pier beam 6, a cutting rope 7, a driving wheel 8, a first tensioning wheel 9, a second tensioning wheel 10, a first guide wheel 11, a second guide wheel 12, a first vertical wheel 13, a second vertical wheel 14, a mounting frame 15, a rotating shaft 16, a guide rail 17, a lifting ring 18 and a lightening hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

In the embodiment shown in fig. 1-2, the rope saw device for the pier beam comprises a support 1, wherein the support comprises an upper table top 2 and a lower table top 3, the upper table top and the lower table top are supported by four jacking tables 4, the jacking tables can adjust the distance between the upper table top and the lower table top, the support is provided with seven flywheels, the flywheels are provided with cutting ropes 6 for cutting the pier beam 5, the seven flywheels comprise a driving wheel 7, a first tensioning wheel 8, a second tensioning wheel 9, a first guide wheel 10, a second guide wheel 11, a first vertical wheel 12 and a second vertical wheel 13, and the cutting ropes are sequentially wound on the pier beam, the first guide wheel, the first vertical wheel, the first tensioning wheel, the driving wheel, the second tensioning wheel, the second vertical wheel and the second guide wheel to form a closed loop; the driving wheel is controlled by a motor to rotate; the plane where the first tensioning wheel, the second tensioning wheel and the driving wheel are located is a horizontal plane, the plane where the first vertical wheel and the second vertical wheel are located is a vertical plane, the first guide wheel and the second guide wheel are mounted on the support through a mounting frame 14, a rotating shaft 15 parallel to the support is arranged on the mounting frame, and the first guide wheel and the second guide wheel are rotatably connected with the rotating shaft; the driving wheel is close to the pier beam relative to the first tensioning wheel and the second tensioning wheel, guide rails 16 are arranged below the first tensioning wheel and the second tensioning wheel, and the first tensioning wheel and the second tensioning wheel move on the guide rails under the control of a servo motor; the lower end of the first vertical wheel is tangent to the plane where the first tensioning wheel is located, the lower end of the second vertical wheel is tangent to the plane where the second tensioning wheel is located, the outer side of the first guide wheel is tangent to the plane where the first vertical wheel is located, the outer side of the second guide wheel is tangent to the plane where the second vertical wheel is located, a plurality of hanging rings 17 used for hoisting the device are arranged on four corners of the support, and lightening holes 18 are formed in the support.

When the temporary pier beam is cut, the device is firstly hung on a working platform, and the lower table top is fixed on the working platform; the servo motor is used for adjusting the positions of the first tensioning wheel and the second tensioning wheel to be the nearest position to the driving wheel; chiseling two small openings at two corners of the pier beam far away from the device; sequentially winding the cutting rope on each flywheel, and primarily tensioning the cutting rope by moving the first tensioning wheel and the second tensioning wheel, and clamping the cutting rope on one side of the pier beam in the two small openings; the rope cutting angle between the pier beam and the first guide wheel and the second guide wheel reaches a required angle by adjusting the height of the jacking table; starting a motor of the driving wheel to enable the driving wheel to start rotating to drive the rope to cut to move, and when the driving wheel moves clockwise, the movement speed of the first tensioning wheel needs to be slightly greater than that of the second tensioning wheel so as to keep the two sides of the pier beam to have similar tensioning forces; if the cutting speed of one side of the pier beam is obviously higher than that of the other side of the pier beam, the speed of the tension wheel on the side is reduced; after cutting a certain distance, the round steel is plugged into the cut-out, the diameter of the round steel is slightly smaller than the diameter of the cutting rope, and after the cutting is completed, the temporary pier beam can be pushed down through the round steel.

Claims

1. The utility model provides a rope saw device that mound roof beam was used, includes the support, be equipped with a plurality of flywheels on the support, be equipped with the rope that cuts that is used for cutting the mound roof beam on a plurality of flywheels, characterized by, a plurality of flywheels include action wheel, first take-up pulley, second take-up pulley, first leading wheel, second leading wheel, cut the rope and form the closed loop around on mound roof beam, first leading wheel, first take-up pulley, action wheel, second take-up pulley, second leading wheel in proper order, the action wheel is located the coplanar with first take-up pulley, second take-up pulley, first take-up pulley all is equipped with the guide rail with second take-up pulley below, first take-up pulley removes on the guide rail through servo motor control with the second take-up pulley.

2. The rope saw device for pier beams of claim 1, wherein the first guide wheel and the second guide wheel are both mounted on a support through a mounting frame, a rotating shaft parallel to the support is arranged on the mounting frame, and the first guide wheel and the second guide wheel are rotatably connected with the rotating shaft.

3. The rope saw device for a pier beam of claim 2, wherein the support comprises an upper table top and a lower table top, and a jacking table is disposed between the upper table top and the lower table top.

4. The rope saw device for pier beams of claim 1, wherein a first vertical wheel is arranged between the first guide wheel and the first tension wheel, the lower end of the first vertical wheel is tangent to the plane of the first tension wheel, a second vertical wheel is arranged between the second guide wheel and the second tension wheel, the lower end of the second vertical wheel is tangent to the plane of the second tension wheel, and the cutting rope is in contact with the lower end of the first vertical wheel and the lower end of the second vertical wheel.

5. The rope saw device for pier beams of claim 4, wherein the outer side of the first guide wheel is tangent to the plane of the first vertical wheel, and the outer side of the second guide wheel is tangent to the plane of the second vertical wheel.

6. A rope saw device for pier beams according to any one of claims 1 to 5, wherein the support frame is provided with a plurality of lifting eyes for lifting the device.

7. The rope saw device for pier beams of any one of claims 1 to 5, wherein the support is provided with lightening holes.