CN213033273U

CN213033273U - Fixed-length anchoring extruder

Info

Publication number: CN213033273U
Application number: CN202021986239.8U
Authority: CN
Inventors: 潘宪卿; 张赛; 李汴生; 张子昌
Original assignee: Kaifeng Tianli Qiaojian Engineering Composition Co ltd
Current assignee: Kaifeng Tianli Qiaojian Engineering Composition Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-04-23
Anticipated expiration: 2030-09-11

Abstract

The utility model relates to an anchor equipment especially relates to fixed length anchor extruder, including reaction frame, punching extruder, two triplexes of hydro-cylinder, two conduct pretension jacks in the hydro-cylinder, be provided with the opening that is used for passing steel strand wires on the reaction frame, reaction frame left side is provided with the extruder that is used for extrudeing the extrusion anchor, the extruder includes the supporting seat, supporting seat right-hand member and reaction frame take up the top tightly, the supporting seat right-hand member is provided with the moulded die that is used for contracting tight extrusion anchor, the extruder left end is provided with pretension jack, and distance and the same pretightning force between through control reaction frame distal end and the moulded die just can realize fixed length anchor, simple structure, convenient operation.

Description

Fixed-length anchoring extruder

Technical Field

The utility model relates to an anchor equipment especially relates to fixed length anchor extruder.

Background

The anchor cable is a prestressed steel bundle erected between two anchor ingots in bridge engineering, and the steel bundle is formed by combining a plurality of prestressed tendons and is called as the anchor cable.

The anchor cable is widely applied in bridge construction engineering, is a necessary choice for large-span bridges, and cannot be constructed without the anchor cable. The anchor rope is mostly the low stress cable in the engineering, and the maximum pulling force is 45% of breaking strength, and it has chill casting anchor rope, whole extrusion anchor rope and clip formula anchor rope to use more at present, in large-scale engineering, have with the restriction of weight and radical, preceding two kinds of integral anchor ropes all have their limitation, and the clip formula anchor rope can break up the whole into parts, convenient construction, but its low stress security also lets people worry always, and the extrusion anchor of generally acknowledged safety, can not use in the anchor rope because of can not the fixed length anchor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a can carry out fixed length pretension, anchored fixed length anchor extruder to steel strand wires.

The utility model discloses a realize through following technical scheme: the utility model provides a fixed length anchor extruder, includes the reaction frame, be provided with the opening that is used for passing steel strand wires on the reaction frame, reaction frame left side is provided with the extruder that is used for the extrusion anchor one, the extruder includes the supporting seat, the supporting seat right-hand member is tight with reaction frame top, the supporting seat right-hand member is provided with the moulded die that is used for the shrink extrusion anchor, the extruder left side is provided with the preloading device who is used for pretension steel strand wires.

Further, the extruder is a feed-through extruder.

Furthermore, the supporting seat comprises a first bottom plate and a second bottom plate which are parallel to each other, the first bottom plate is connected with the second bottom plate through a connecting column, and the forming die is installed on the first bottom plate through a die holder.

Further, the connecting column is a stud.

Further, the die holder comprises a connecting sleeve connected with the base plate I, a pressure bearing seat is arranged in the connecting sleeve, a mounting groove matched with the forming die is arranged in the pressure bearing seat, and the forming die is arranged in the mounting groove.

Furthermore, an oil cylinder I is arranged on the bottom plate II, a piston rod of the oil cylinder I is connected with a top head I, a left top pressing head is installed in the top head I, and a first extrusion anchor to be extruded is located on the right side of the left top pressing head.

Further, the pre-tightening device comprises a second oil cylinder which is coaxially arranged at the left end of the first oil cylinder, a piston rod of the second oil cylinder is connected with a second ejection head, the second ejection head is tightly ejected against the left end of the first oil cylinder, the left end of an inner cylinder of the second oil cylinder is connected with a clamping sleeve which is used for clamping a steel strand, the clamping sleeve comprises a first clamping piece which is installed at the right end of the second oil cylinder, a shrinking sleeve which is used for shrinking the first clamping piece is further installed at the right end of the second oil cylinder, and a conical hole which is matched with the first clamping piece is formed in the left end of the.

Further, the right end of the second oil cylinder is further provided with a return spring used for pushing the clamping piece to move towards the tightening sleeve, the left end of the return spring is tightly propped against the second oil cylinder, the right end of the return spring is connected with a spring sleeve, and a top ring used for propping the clamping piece to the left is further arranged in the second top head.

Furthermore, the reaction frame comprises two reaction plates which are parallel to each other, a strip-shaped opening matched with the steel strand is processed on the two reaction plates, and the strip-shaped opening extends to the upper edge of the reaction plate.

The beneficial effects of the utility model reside in that: fixed length anchor extruder sets up reaction frame, extruder, preloading device, and the extruder includes supporting seat and moulded die, through the distance between control reaction frame and the moulded die, realizes the fixed length, prestretches through preloading device and realizes the equal stress, finally realizes equal stress fixed length anchor, simple structure, convenient operation.

Drawings

FIG. 1 is a schematic top cross-sectional view of a definite length anchoring extruder;

FIG. 2 is a cross-sectional view of the support base;

FIG. 3 is a schematic cross-sectional view of the right end of the second cylinder;

wherein: 1-reaction plate, 2-stud, 3-first bottom plate, 4-second bottom plate, 5-bearing seat, 6-first extrusion anchor, 7-left top pressure head, 8-first oil cylinder, 9-second oil cylinder, 10-connecting sleeve, 11-forming die, 12-top thread, 13-return spring, 14-second top head, 15-tightening sleeve, 16-top ring, 17-first clamping piece, 18-spring sleeve, 19-first top head, 20-steel strand and 21-second extrusion anchor.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-3, a fixed-length anchoring extruder comprises a reaction frame, an opening for passing through a steel strand 20 is installed on the reaction frame, an extruder for extruding and extruding a first anchor 6 is installed on the left side of the reaction frame, the extruder is a feed-through extruder, the extruder comprises a support seat, the right end of the support seat is tightly propped against the reaction frame, a forming die 11 for shrinking and extruding the anchor is installed on the right end of the support seat, for the convenience of maintenance, the support seat comprises a first bottom plate 3 and a second bottom plate 4 which are parallel to each other, the first bottom plate and the second bottom plate are connected through a stud 2, the distance is convenient to adjust, the forming die is installed on the first bottom plate through a die holder, the die holder comprises a connecting sleeve 10 connected with the first bottom plate, the inner cavity of the connecting sleeve is cylindrical, a cylindrical bearing seat 5 is installed in the connecting sleeve in, in order to prevent the forming die from falling off, a plurality of jackscrews 12 for adjusting the position of the bearing seat are uniformly arranged on the connecting sleeve, a first oil cylinder 8 is arranged on the second bottom plate, a first top piston rod of the first oil cylinder is connected with a first top head 19, a left top press head 7 is arranged in the first top head, a first extrusion anchor is arranged on the right side of the left top press head, the left top press head is detachably sleeved on a steel stranded wire, the left top press head is cylindrical and is made of tool steel materials, the right end of the left top press head is processed into a right circular platform type boss, the left end of the forming die is processed with a conical hole matched with the boss, the right end of the conical hole is coaxially communicated with a cylindrical die cavity, the first extrusion anchor can be completely pushed into the die cavity through the left top press head, the extruded and is pushed out of the die cavity to the right side, the extrusion is finished, the pre-tightening device also comprises a second oil cylinder, the piston rod of the second oil cylinder is connected with a second ejector 14, the second ejector tightly pushes against the left end of the first oil cylinder, the left end of the inner cylinder of the second oil cylinder is connected with a clamping sleeve for clamping a steel strand, the clamping sleeve comprises a first clamping piece 17 installed at the right end of the second oil cylinder, a shrinking sleeve 15 used for shrinking the first clamping piece is further installed at the right end of the second oil cylinder, a tapered hole matched with the first clamping piece is formed in the left end of the shrinking sleeve, the first clamping piece is a three-petal type clamping piece, a reset spring 13 used for pushing the first clamping piece to move towards the shrinking sleeve is further installed at the right end of the second oil cylinder, for convenience in use, the left end of the reset spring tightly pushes against the second oil cylinder, the right end of the reset spring sleeve 18 is connected with the right end of the spring sleeve, the first clamping piece can be stressed more uniformly through the spring sleeve, the first clamping piece and the steel strand are further stably clamped.

For further improvement work efficiency, the reaction frame comprises two reaction plates 1 which are parallel to each other, the distance between the two reaction plates is adjusted according to the length of L0, strip-shaped openings matched with the steel strands are processed on the two reaction plates, and the strip-shaped openings extend to the upper edges of the reaction plates.

The fixed-length anchoring extruder has the working principle that a steel strand to be pre-tensioned is placed on the fixed-length anchoring extruder, an extrusion anchor II 21 is clamped on the right side of a reaction frame, the steel strand sequentially penetrates through a supporting seat, an oil cylinder I and an oil cylinder II to the left, the oil cylinder II is started, an inner cylinder and an outer cylinder of the oil cylinder II move to the left, a shrinkage sleeve moves to the left, a reset spring pushes a clamping piece I and the shrinkage sleeve to move relatively until the clamping piece I is clamped with the steel strand, the oil cylinder II continues to act to perform tension pre-tensioning on the steel strand, the force of the tension pre-tensioning can be controlled by controlling the oil pressure of the oil cylinder II to ensure the tension pre-tensioning effect of the steel strand, the steel strand with the required length is obtained by cutting the left side of the oil cylinder II as required, after the tension pre-tensioning is completed, the oil cylinder acts to push the extrusion anchor I to, resetting after the second oil cylinder, the in-process that the second oil cylinder resets, the clamping piece moves to right and pushes up mutually with the apical ring, can not continue to move, the shrink sleeve continues to move to right, cause the clamping piece to open, take out and obtain prefabricated steel strand wires, the step is simple, the steel strand wires that obtain the fixed length anchor that can be quick, the first cooperation installation of anchor can be dismantled with the assembled to the convenience, at the in-process of work, control the oil pressure upper limit of second oil cylinder through the overflow valve, and then the control is to the stretch-draw pretightning force of steel strand wires, at the extruded in-process, can also guarantee that the piston rod of second oil cylinder moves along with the steel strand wires, guarantee that the steel.

The utility model provides a fixed length anchor extruder can conveniently make stable fixed length anchor size, can guarantee the quality of anchor, can guarantee the even atress of polycell combination anchor, improves whole anchor quality, especially to large-scale suspension bridge, whole cable weight is very big, and it is all very difficult to hoist and mount to erect, if adopt many forms of assembling, just can break up the whole into parts, brings very big convenience for the construction, and this utility model also provides probably for pin-connected panel system cable.

The utility model discloses will make the extrusion anchor use in the anchor rope and can realize, absorb the nimble convenient characteristic of clip formula anchor rope, it is poor to have overcome clip formula ground tackle low stress anchoring performance, and anti-vibration ability is weak, and antifatigue, the poor shortcoming of corrosion resisting property have wide application prospect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a fixed length anchor extruder, its characterized in that, includes the reaction frame, be provided with the opening that is used for passing steel strand wires on the reaction frame, reaction frame left side is provided with the extruder that is used for the extrusion anchor one, the extruder includes the supporting seat, supporting seat right-hand member and reaction frame take up, the supporting seat right-hand member is provided with the moulded die that is used for the shrink extrusion anchor, the extruder left side is provided with the preloading device who is used for pretension steel strand wires.

2. The machine according to claim 1, wherein the machine is a feed-through machine.

3. The machine for anchoring and extruding a fixed length according to claim 1, wherein the supporting base includes a first base plate and a second base plate which are parallel to each other, the first base plate and the second base plate are connected by a connecting column, and the forming die is mounted on the first base plate through a die holder.

4. The machine according to claim 3, wherein the connecting stud is a stud.

5. The machine as claimed in claim 3, wherein the die holder includes a connecting sleeve connected to the base plate, a bearing seat is provided in the connecting sleeve, a mounting groove is provided in the bearing seat for fitting with the forming die, and the forming die is provided in the mounting groove.

6. The machine according to claim 3, wherein the second bottom plate is provided with a first oil cylinder, a piston rod of the first oil cylinder is connected with a first top head, a left top pressure head is arranged in the first top head, and the first extrusion anchor is arranged on the right side of the left top pressure head.

7. The fixed-length anchoring extruder according to claim 6, wherein the pre-tightening device comprises a second oil cylinder coaxially arranged at the left end of the first oil cylinder, a piston rod of the second oil cylinder is connected with a second ejection head, the second ejection head abuts against the left end of the first oil cylinder, the left end of an inner cylinder of the second oil cylinder is connected with a clamping sleeve for clamping a steel strand, the clamping sleeve comprises a first clamping piece arranged at the right end of the second oil cylinder, a shrinking sleeve for shrinking the first clamping piece is further arranged at the right end of the second oil cylinder, and a tapered hole matched with the first clamping piece is formed in the left end of the shrinking sleeve.

8. The machine according to claim 7, wherein a return spring for pushing the clamping piece to move toward the tightening sleeve is further mounted at the right end of the second oil cylinder, the left end of the return spring is tightly propped against the second oil cylinder, the right end of the return spring is connected with a spring sleeve, and a top ring for propping the clamping piece to the left is further mounted in the second top head.

9. A machine for fixed-length anchoring according to claim 1, characterised in that the reaction frame consists of two reaction plates parallel to each other, which are provided with elongated openings for the steel strands, which elongated openings extend to the upper edge of the reaction plates.