CN217701152U - Box girder anchor cave hole steel strand wires cutting device - Google Patents
Box girder anchor cave hole steel strand wires cutting device Download PDFInfo
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- CN217701152U CN217701152U CN202222105945.2U CN202222105945U CN217701152U CN 217701152 U CN217701152 U CN 217701152U CN 202222105945 U CN202222105945 U CN 202222105945U CN 217701152 U CN217701152 U CN 217701152U
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Abstract
The utility model discloses a box girder anchor cave hole steel strand wires cutting device, including mounting bracket, the steel strand wires holding ring that sets up on the mounting bracket and the flexible cutter head that runs through the steel strand wires holding ring, flexible cutter head is including inserting the floodgate tool bit that establishes in the steel strand wires holding ring and the flexible hydro-cylinder that is used for controlling floodgate tool bit cutting steel strand wires; and the horizontal distance L between the cutting edge of the brake tool bit and the front side surface of the steel strand positioning ring is smaller than the difference between the minimum depth of the anchor hole and the thickness of the prestress tensioning anchor. The utility model discloses a set up the steel strand wires holding ring realize the steel strand wires restrainte with the location of mutual position between the flexible cutter head, the one-time cutting of many steel strand wires is realized to the combined floodgate cutter head and the powerful cutting force of flexible hydro-cylinder complex, and it is downthehole to make the exposed section of the steel strand wires after the cutting be located the anchor cave, prevents that the later stage from rustting, guarantees construction quality, again with mounting bracket and arm cooperation, is favorable to reducing artifical supplementary operation, improves the efficiency of construction.
Description
Technical Field
The utility model belongs to the technical field of the box girder construction manufacturing, concretely relates to box girder anchor cave hole steel strand wires cutting device.
Background
The proportion of bridges constructed by railways in China is large, and most of the bridges are standard-span simply-supported bridges. These bridges are constructed by making a large number of prefabricated box girders for railways. In the manufacturing of the railway precast box girder, after demoulding, concrete pouring needs to be subjected to the processes of tensioning, grouting, steel strand cutting, anchor pocket hole roughening, plugging and the like, wherein the anchor steel strand cutting needs mechanical cutting. In the current anchor recess hole steel strand cutting process, a manual handheld cutting machine is mostly adopted for cutting, but the manual cutting work efficiency is low, the labor intensity is high, and the safety risk is high. The cutting motor is combined with the cutting piece to stretch into the anchor hole to cut the steel strands one by one, but only one steel strand can be cut at a time, the position of the cutting piece needs to be adjusted for multiple times when the cutting of the steel strands in the anchor hole is carried out, the efficiency is low, and the consumption of the cutting piece is high. In addition, the structure for adjusting the position of the cutting blade is complex and easy to break down. Therefore, a box girder anchor hole steel strand cutting device which can work in a narrow space in an anchor hole, has high cutting efficiency and a simple structure, and does not need frequent maintenance and repair is needed so as to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that lie in to above-mentioned prior art not enough, provide a case roof beam anchor cave hole steel strand wires cutting device, its simple structure, through set up the steel strand wires holding ring realize the steel strand wires bunch with the location of mutual position between the flexible cutter head, the one-off cutting that many steel strand wires were realized to the combined floodgate cutter head and the powerful cutting force of flexible hydro-cylinder complex, make the exposed section of the steel strand wires after the cutting be located the anchor cave downthehole, prevent that the later stage from rustting, guarantee construction quality, cooperate mounting bracket and arm again, be favorable to reducing artifical auxiliary operation, improve the efficiency of construction.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a case roof beam anchor cave hole steel strand wires cutting device which characterized in that: the cutting device comprises a mounting frame, a steel strand positioning ring arranged on the mounting frame and a telescopic cutting tool bit penetrating through the steel strand positioning ring, wherein the telescopic cutting tool bit comprises a gate tool bit inserted in the steel strand positioning ring and a telescopic oil cylinder used for controlling the gate tool bit to cut a steel strand; the horizontal distance L between the cutting edge of the brake tool bit and the front side surface of the steel strand positioning ring is smaller than the difference value between the minimum depth of the anchor hole and the thickness of the prestress tensioning anchor;
the central hole of the steel strand positioning ring is used for the steel strand bundle to pass through, a cutting through hole for the switch tool bit to cut the steel strand bundle is formed in the steel strand positioning ring, and the cutting through hole and the central hole of the steel strand positioning ring are vertically arranged; the inner diameter of the steel strand locating ring is smaller than the outer diameter of the prestress tensioning anchor.
Foretell box girder anchor cave hole steel strand wires cutting device which characterized in that: the width of the brake tool bit is greater than the inner diameter of the steel strand positioning ring and less than the outer diameter of the steel strand positioning ring.
Foretell box girder anchor cave hole steel strand wires cutting device, its characterized in that: and the mounting frame is provided with a connecting piece used for being connected with the mechanical arm.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses a set up the steel strand wires holding ring realize the steel strand wires restrainting with the location of mutual position between the flexible cutter head guarantees flexible cutter head cutting steel strand wires after, the exposed section of steel strand wires is located the anchor cave downtheholely, prevents that the later stage from rustting, guarantees construction quality.
2. The utility model discloses a set up floodgate tool bit and flexible hydro-cylinder cooperation, the disposable cutting of many steel strands is realized to powerful cutting force, again with mounting bracket and arm cooperation, is favorable to reducing artifical auxiliary operation, improves the efficiency of construction.
To sum up, the utility model discloses simple structure through set up the steel strand wires holding ring realize the steel strand wires bunch with the location of mutual position between the flexible cutter head, the one-off cutting that many steel strand wires were realized to the combined floodgate cutter head and the powerful cutting force of flexible hydro-cylinder complex makes the exposed section of the steel strand wires after the cutting be located the anchor cave downthehole, prevents that the later stage from rustting, guarantees construction quality, again with mounting bracket and arm cooperation, is favorable to reducing artifical auxiliary operation, improves the efficiency of construction.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a usage state diagram of the present invention.
Description of reference numerals:
1-a mounting frame; 2-positioning a steel strand ring; 3-a brake bit;
4, a telescopic oil cylinder; 5-anchoring hole; 6-stretching an anchorage device;
7-a steel strand bundle; 8-cutting through holes; 9-connecting piece.
Detailed Description
As shown in fig. 1 and fig. 2, the utility model comprises a mounting frame 1, a steel strand positioning ring 2 arranged on the mounting frame 1, and a telescopic cutting knife head penetrating through the steel strand positioning ring 2, wherein the telescopic cutting knife head comprises a knife switch head 3 inserted in the steel strand positioning ring 2 and a telescopic oil cylinder 4 for controlling the knife switch head 3 to cut steel strands; the horizontal distance L between the cutting edge of the brake cutter head 3 and the front side surface of the steel strand positioning ring 2 is smaller than the difference between the minimum depth of the anchor hole 5 and the thickness of the prestress tensioning anchor 6;
the central hole of the steel strand positioning ring 2 is used for the steel strand bundle 7 to pass through, a cutting through hole 8 for the knife switch head 3 to cut the steel strand bundle 7 is formed in the steel strand positioning ring 2, and the cutting through hole 8 and the central hole of the steel strand positioning ring 2 are vertically arranged; the inner diameter of the steel strand positioning ring 2 is smaller than the outer diameter of the prestress tension anchor 6.
It should be noted that, a plurality of steel strands in one prestressed tension anchor 6 are referred to as a steel strand bundle 7, and since the central hole of the steel strand positioning ring 2 is used for the steel strand bundle 7 to pass through, the inner diameter of the steel strand positioning ring 2 is larger than the diameter of the steel strand bundle 7.
In this embodiment, in order to guarantee that telescopic cylinder 4 retracts to the shortest, when the cutting edge of plug-in tool bit 3 does not invade the centre bore of steel strand wires holding ring 2, plug-in tool bit 3 still can go deep into to anchor cave hole 5, sets up the wrong platform in one side that plug-in tool bit 3 is close to anchor cave hole 5, makes the upper portion of plug-in tool bit 3 can also block in anchor cave hole 5 when not invading the centre bore of steel strand wires holding ring 2, guarantees steel strand wires cutting effect.
It should be noted that, since the anchor hole 5 has a special shape and the depth thereof is gradually reduced from top to bottom, the position of the blade of the guillotine head 3 needs to be limited so that the steel strand 7 cut by the guillotine head 3 does not leak out of the anchor hole 5, and the blade of the guillotine head 3 is located at the topmost end of the top slope of the guillotine head 3 as shown in fig. 2.
In this embodiment, the stroke of the telescopic oil cylinder 4 and the length of the switch blade head 3 are both greater than the inner diameter of the steel strand positioning ring 2, so that the switch blade head 3 can cut the steel strand located at any position of the center hole of the steel strand positioning ring 2.
In this embodiment, the mounting bracket 1 is two vertical mounting boards that are the parallel arrangement, has the interval that supplies steel strand 7 to pass between two vertical mounting boards, and steel strand locating ring 2 is fixed at the mounting bracket 1 top, and flexible hydro-cylinder 4 sets up two between the vertical mounting board, and be located the 1 lower part of mounting bracket.
In this embodiment, the stiff end of flexible hydro-cylinder 4 can be dismantled with mounting bracket 1 and be connected, the flexible end of flexible hydro-cylinder 4 can be dismantled with 3 bottoms of brake knife head and be connected, the change of the brake knife head 3 of being convenient for.
In this embodiment, flexible hydro-cylinder 4 is the hydraulic stretching hydro-cylinder, and top thrust is stronger, can drive the one-time cutting of plug-in strip head and restraint 7 by the steel strand wires that a plurality of steel strand wires are constituteed, and is quick convenient.
It should be noted that the mutual position between the steel strand bundle 7 and the telescopic cutter head is positioned by arranging the steel strand positioning ring 2, so that after the telescopic cutter head cuts the steel strand bundle 7, the exposed section of the steel strand bundle 7 is positioned in the anchor hole 5, rust at the later stage is prevented, and the construction quality is ensured;
through setting up floodgate tool bit 3 and the cooperation of flexible hydro-cylinder 4, the disposable cutting of many steel strands is realized to powerful cutting force, again with mounting bracket 1 and arm cooperation, is favorable to reducing artifical auxiliary operation, improves the efficiency of construction.
In this embodiment, the width of the brake bit 3 is greater than the inner diameter of the steel strand positioning ring 2 and less than the outer diameter of the steel strand positioning ring 2.
It should be noted that, by limiting the width of the switch tool bit 3, the switch tool bit 3 can cut the steel strand bundle 7 in the central hole of the steel strand positioning ring 2 at one time under the driving of the telescopic cylinder 4, and the cutting is fast and accurate.
In this embodiment, the mounting frame 1 is provided with a connecting member 9 for connecting with a robot arm.
In this embodiment, the connecting member 9 is a flange plate, and is used for being connected with a front end flange of the six-degree-of-freedom mechanical arm.
In this embodiment, the steel strand positioning ring 2 is arranged on the front side of the top of the mounting frame 1, and the connecting piece 9 is arranged on the rear side of the middle of the mounting frame 1.
When the cutting tool is actually used, firstly, the telescopic oil cylinder 4 retracts to the shortest, the cutting edge of the guillotine head 3 does not invade the central hole of the steel strand positioning ring 2, the mechanical arm drives the steel strand positioning ring 2 to be sleeved outside the steel strand bundle 7, and then the steel strand positioning ring 2 and the telescopic cutting knife head stretch into the anchor hole 5, as shown in fig. 2, when the front side surface of the steel strand positioning ring 2 abuts against the surface of the prestress tensioning anchor 6, the cutting edge of the guillotine head 3 is shown to enter the anchor hole 5, and the cutting of the steel strand bundle 7 can be started; because the cutting edge of floodgate tool bit 3 stretches into in the anchor cave hole 5, consequently the exposed section of the steel strand bundle 7 after the cutting is located anchor cave hole 5, prevents that the later stage from rustting.
The above, only be the preferred embodiment of the utility model discloses a it is not right to make any restriction the utility model discloses all according to the utility model discloses any simple modification, change and the equivalent structure change of technical essence to what above embodiment was made all still belong to the technical scheme's of the utility model protection within range.
Claims (3)
1. The utility model provides a case roof beam anchor cave hole steel strand wires cutting device which characterized in that: the cutting device comprises a mounting frame (1), a steel strand positioning ring (2) arranged on the mounting frame (1) and a telescopic cutting tool bit penetrating through the steel strand positioning ring (2), wherein the telescopic cutting tool bit comprises a switch knife head (3) inserted in the steel strand positioning ring (2) and a telescopic oil cylinder (4) used for controlling the switch knife head (3) to cut a steel strand; the horizontal distance L between the cutting edge of the brake tool bit (3) and the front side surface of the steel strand positioning ring (2) is smaller than the difference value between the minimum depth of the anchor hole (5) and the thickness of the prestress tensioning anchor (6);
the center hole of the steel strand positioning ring (2) is used for a steel strand bundle (7) to pass through, a cutting through hole (8) for the switch knife head (3) to cut the steel strand bundle (7) is formed in the steel strand positioning ring (2), and the cutting through hole (8) and the center hole of the steel strand positioning ring (2) are vertically arranged; the inner diameter of the steel strand positioning ring (2) is smaller than the outer diameter of the prestress tension anchor (6).
2. The box girder anchor hole steel strand cutting device of claim 1, wherein: the width of the brake tool bit (3) is greater than the inner diameter of the steel strand positioning ring (2) and less than the outer diameter of the steel strand positioning ring (2).
3. The box girder anchor hole steel strand cutting device of claim 1, wherein: the mounting rack (1) is provided with a connecting piece (9) used for being connected with the mechanical arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222105945.2U CN217701152U (en) | 2022-08-10 | 2022-08-10 | Box girder anchor cave hole steel strand wires cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222105945.2U CN217701152U (en) | 2022-08-10 | 2022-08-10 | Box girder anchor cave hole steel strand wires cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217701152U true CN217701152U (en) | 2022-11-01 |
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ID=83785684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222105945.2U Active CN217701152U (en) | 2022-08-10 | 2022-08-10 | Box girder anchor cave hole steel strand wires cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217701152U (en) |
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2022
- 2022-08-10 CN CN202222105945.2U patent/CN217701152U/en active Active
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