CN211873112U

CN211873112U - Horizontal load test testing device for prestressed pipe pile

Info

Publication number: CN211873112U
Application number: CN201922069053.XU
Authority: CN
Inventors: 余宏
Original assignee: Yunnan Jianyan Construction Engineering Inspection And Appraisal Co ltd
Current assignee: Yunnan Jianyan Construction Engineering Inspection And Appraisal Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-11-06
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a horizontal load test testing device for prestressed pipe piles, which belongs to the technical field of horizontal load test testing of prestressed pipe piles, and a torque sensor is fixedly assembled on the output end of a reducer, a rolling column is fixedly and integrally formed on the top of a limiting plate, limiting blocks are arranged on the front side and the rear side of the inner cavity of the rolling column, a first steel wire rope is fixedly connected on the side wall of one side of the limiting block, which is close to the side wall of the inner cavity of the rolling column, a second steel wire rope is integrally formed after the first steel wire rope penetrates through the rolling column, two groups of the second steel wire ropes are fixedly provided with electronic digital tension meters, the other ends of the two groups of the second steel wire ropes are fixedly provided with a clamp holder, the clamp holder and the pile body are assembled, the assembling fastening degree can be ensured when the pile body and the clamp holder are assembled, the detection result is accurate, and errors of detection data caused by human factors are avoided.

Description

Horizontal load test testing device for prestressed pipe pile

Technical Field

The utility model relates to a horizontal load test technical field of prestressed pipe pile specifically is a horizontal load test testing arrangement of prestressed pipe pile.

Background

When the prestress of the prestressed pipe pile is detected, a common testing system with a chain block tensions a pull rope through the chain block, and by detecting the tension of the pull rope, thereby detecting the prestress of the prestressed pipe pile, but the pulling rope is tensioned by the chain block, thereby not only wasting the physical power of people, the problem that the tension of the pull rope does not reach the limit to cause incorrect detection result exists, the use is troublesome, the detection result is not accurate and the use is inconvenient, meanwhile, the pull rope is fixed on the prestressed pipe pile through the clamping jaws, the assembly is not firm, the pull rope is easy to separate when pulled, and the potential safety hazard is large, and the prior testing device can not adjust in real time according to the diameter of the tubular pile when being fixed with the tubular pile, the adaptability of the device is seriously influenced, and therefore, a horizontal load test device for the prestressed pipe pile is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a horizontal load test testing arrangement of prestressing force tubular pile to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a horizontal load test device for a prestressed pipe pile comprises a protection box, wherein a stepping motor is fixedly arranged at the bottom of an inner cavity of the protection box, a speed reducer fixedly assembled with the output end of the stepping motor is fixedly arranged at the top of the protection box, a limiting plate is fixedly assembled at the output end of the speed reducer, a torque sensor is fixedly assembled at the output end of the speed reducer, a coil column is fixedly and integrally formed at the top of the limiting plate, a ring groove is formed between the limiting plate and the coil column, limiting blocks are respectively arranged at the front side and the rear side of the inner cavity of the coil column, a first steel wire rope is fixedly connected onto one side wall of the limiting block close to the inner cavity side wall of the coil column, a second steel wire rope is integrally formed after the first steel wire rope penetrates through the coil column, an electronic digital tension meter is fixedly assembled on each of the two groups of, the clamp is assembled with the pile body.

Preferably, the holder includes first staple bolt and the second staple bolt of assembly on the pile body outer wall, just first staple bolt and second staple bolt pass through fastening bolt fixed connection, just fastening bolt has pretension nut and lock nut in proper order the spiro union on running through first staple bolt and second staple bolt back outer wall, just fixed welding has the engaging lug on the outer wall of second staple bolt.

Preferably, first staple bolt and second staple bolt are relative semiellipse shape limit structure who sets up, just the equal integrated into one piece of tip of first staple bolt and second staple bolt is provided with fixed ear, and fixed ear and fastening bolt spiro union assembly.

Preferably, the connecting lug is provided with a mounting hole, and the end part of the second steel wire rope is fixedly provided with a fixing hook matched with the mounting hole.

Preferably, the two groups of second steel wire ropes are arranged on the circumferential side wall of the winding column in a centrosymmetric manner, and the two groups of second steel wire ropes are arranged on a horizontal plane.

Preferably, the torque sensor and the electronic digital display tension meter are electrically connected with an external single chip microcomputer through wires, and the single chip microcomputer is electrically connected with the stepping motor in output.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable design, through the assembly of first staple bolt and second staple bolt on the pile body, can impel the inner wall of first staple bolt and second staple bolt and the outer wall of pile body to laminate mutually, can adjust according to the pile body of different diameters, and realize the fixed mounting of first staple bolt and second staple bolt through fastening bolt, realize the pretension through the pretension nut simultaneously, then realize the fixed mounting through lock nut, can guarantee the fastening effect to the pile body, prevent pile body and holder from removing and breaking away from, improve the assembly fastening degree, then step motor drives the reduction gear to rotate, drive the book post through the deceleration of reduction gear and slowly rotate, thereby can drive second wire rope through first wire rope and convolute on the book post outer wall, thereby can impel second wire rope to tighten up, can show the tensile value on the electronic digital display type tensiometer on the second wire rope constantly, simultaneously, the torque sensor can display a torque value output by the output shaft of the speed reducer, so that a tension value on the second steel wire rope can be calculated according to the ratio of the torque value to the radius of the winding column, two groups of tension values are compared, human errors in the test process are reduced, a larger tension value is selected as a detection value for testing the prestress of the pile body, and the size of the prestress of the pile body can be detected more objectively and directly.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the limiting plate and the winding post assembly of the present invention;

fig. 3 is a top view of the structure of the clamp of the present invention.

In the figure: the device comprises a protection box 1, a stepping motor 2, a speed reducer 3, a torque sensor 4, a limiting plate 5, a rolling column 6, an annular groove 7, a limiting block 8, a first steel wire rope 9, a second steel wire rope 10, an electronic digital tension meter 11, a clamp 12, a pile body 13, a first hoop 14, a second hoop 15, a fastening bolt 16, a pre-tightening nut 17, a locking nut 18 and a connecting lug 19.

Detailed Description

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.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a horizontal load test device for a prestressed pipe pile comprises a protection box 1, wherein a stepping motor 2 is fixedly arranged at the bottom of an inner cavity of the protection box 1, a speed reducer 3 fixedly assembled with the output end of the stepping motor 2 is fixedly arranged at the top of the protection box 1, a limiting plate 5 is fixedly assembled at the output end of the speed reducer 3, a torque sensor 4 is fixedly assembled at the output end of the speed reducer 3, a winding column 6 is fixedly and integrally formed at the top of the limiting plate 5, an annular groove 7 is formed between the limiting plate 5 and the winding column 6, limiting blocks 8 are respectively arranged at the front side and the rear side of the inner cavity of the winding column 6, a first steel wire rope 9 is fixedly connected to one side wall of the limiting block 8 close to the inner cavity side wall of the winding column 6, a second steel wire rope 10 is integrally formed after the first steel wire rope 9 penetrates through the winding column 6, electronic digital display type tension meters 11 are, the clamp 12 is assembled with the pile body 13.

Referring to fig. 3, the holder 12 includes a first anchor ear 14 and a second anchor ear 15 mounted on the outer wall of the pile body 13, the first anchor ear 14 and the second anchor ear 15 are fixedly connected through a fastening bolt 16, the fastening bolt 16 penetrates through the first anchor ear 14 and the second anchor ear 15, the back outer wall of the first anchor ear 14 and the second anchor ear 15 is sequentially screwed with a pretightening nut 17 and a locking nut 18, the outer wall of the second anchor ear 15 is fixedly welded with a connecting lug 19, the inner walls of the first anchor ear 14 and the second anchor ear 15 are attached to the outer wall of the pile body 13 through the first anchor ear 14 and the second anchor ear 15, can be adjusted according to the pile bodies 13 with different diameters, and realizes the fixed assembly of the first anchor ear 14 and the second anchor ear 15 through the fastening bolt 16, and simultaneously realizes the pre-tightening through the pre-tightening nut 17, then, the fixing assembly is realized through the locking nut 18, the fastening effect on the pile body 13 can be ensured, and the pile body 13 and the holder 12 are prevented from moving and separating;

referring to fig. 3, the first anchor ear 14 and the second anchor ear 15 are semi-elliptical limiting structures arranged oppositely, and the end portions of the first anchor ear 14 and the second anchor ear 15 are both integrally formed with fixing lugs, and the fixing lugs are assembled with the fastening bolts 16 in a screwing manner, so that the inner walls of the first anchor ear 14 and the second anchor ear 15 can be attached to the outer wall of the pile body 13, and the adjustment can be performed according to pile bodies 13 with different diameters;

referring to fig. 1, a mounting hole is formed in the connecting lug 19, and a fixing hook matched with the mounting hole is fixedly assembled at the end of the second steel wire rope 10, so that the assembling stability of the second steel wire rope 10 and the holder 12 is improved;

the two groups of second steel wire ropes 10 are arranged on the circumferential side wall of the winding column 6 in a centrosymmetric manner, and the two groups of second steel wire ropes 10 are arranged on a horizontal plane;

the torque sensor 4 and the electronic digital display tension meter 11 are electrically connected with an external singlechip through wires, and the singlechip is electrically connected with the stepping motor 2 in output.

The working principle is as follows: the inner walls of the first anchor ear 14 and the second anchor ear 15 can be attached to the outer wall of the pile body 13 by assembling the first anchor ear 14 and the second anchor ear 15 on the pile body 13, the pile body 13 with different diameters can be adjusted, the first anchor ear 14 and the second anchor ear 15 can be fixedly assembled by the fastening bolt 16, meanwhile, pre-tightening is realized by the pre-tightening nut 17, then, the fixed assembly is realized by the locking nut 18, the fastening effect on the pile body 13 can be ensured, the pile body 13 and the holder 12 are prevented from moving and separating, the assembling fastening degree can be ensured while the pile body 13 and the holder 12 are assembled, then, the stepping motor 2 positively rotates to drive the reducer 3 to rotate, the winding column 6 is driven to slowly rotate by the speed reducing effect of the reducer 3, the limiting block 8 can play a limiting role on the first steel wire rope 9, so that the second steel wire rope 10 can be driven by the first steel wire rope 9 to wind on the outer wall of the winding column 6, thereby can impel second wire rope 10 to tighten up, can demonstrate the pulling force value on the second wire rope 10 constantly on the electronic digital display formula tensiometer 11, torque sensor 4 can demonstrate the torque value that 3 output shafts of reduction gear are exported simultaneously, thereby can calculate the pulling force value on the second wire rope 10 through the ratio of torque value and 6 radiuses of book post, two sets of pulling force values carry out the comparison, in order to reduce the human error that appears in the testing process, select great pulling force value as the detection numerical value of test pile body 13 prestressing force, can be more objective direct detect out the prestressing force horizontal load size of pile body 13, the testing result is accurate, the error of the detection data that the human factor caused has been avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a test device for horizontal load test of prestressed pipe pile, includes guard box (1), its characterized in that: the steel wire rope winding device is characterized in that a stepping motor (2) is fixedly arranged at the bottom of an inner cavity of a protection box (1), a speed reducer (3) fixedly assembled with an output end of the stepping motor (2) is fixedly arranged at the top of the protection box (1), a limiting plate (5) is fixedly assembled at the output end of the speed reducer (3), a torque sensor (4) is fixedly assembled at the output end of the speed reducer (3), a winding column (6) is fixedly and integrally formed at the top of the limiting plate (5), a ring groove (7) is formed between the limiting plate (5) and the winding column (6), limiting blocks (8) are arranged on the front side and the rear side of the inner cavity of the winding column (6), a first steel wire rope (9) is fixedly connected onto one side wall of the inner cavity of the winding column (6) close to the limiting blocks (8), and a second steel wire rope, and the two groups of second steel wire ropes (10) are fixedly provided with electronic digital display type tension meters (11), the other ends of the two groups of second steel wire ropes (10) are fixedly provided with grippers (12), and the grippers (12) are assembled with pile bodies (13).

2. The horizontal load test testing device for the prestressed pipe pile according to claim 1, is characterized in that: holder (12) are including assembling first staple bolt (14) and second staple bolt (15) on pile body (13) outer wall, just first staple bolt (14) and second staple bolt (15) are through fastening bolt (16) fixed connection, just fastening bolt (16) run through on first staple bolt (14) and second staple bolt (15) the back outer wall in proper order the spiro union have pretension nut (17) and lock nut (18), just fixed welding has engaging lug (19) on the outer wall of second staple bolt (15).

3. The horizontal load test device for the prestressed pipe pile according to claim 2, characterized in that: first staple bolt (14) and second staple bolt (15) are relative semiellipse shape limit structure who sets up, just the equal integrated into one piece of tip of first staple bolt (14) and second staple bolt (15) is provided with fixed ear, and fixed ear and fastening bolt (16) spiro union assembly.

4. The horizontal load test device for the prestressed pipe pile according to claim 2, characterized in that: the connecting lug (19) is provided with a mounting hole, and the end part of the second steel wire rope (10) is fixedly provided with a fixed hook matched with the mounting hole.

5. The horizontal load test testing device for the prestressed pipe pile according to claim 1, is characterized in that: the two groups of second steel wire ropes (10) are arranged on the circumferential side wall of the winding column (6) in a centrosymmetric mode, and the two groups of second steel wire ropes (10) are arranged on the same horizontal plane.

6. The horizontal load test testing device for the prestressed pipe pile according to claim 1, is characterized in that: the torque sensor (4) and the electronic digital display tension meter (11) are electrically connected with an external singlechip through wires, and the singlechip is electrically connected with the stepping motor (2) in output.