CN110926929B

CN110926929B - Bending test rack

Info

Publication number: CN110926929B
Application number: CN201911265480.3A
Authority: CN
Inventors: 江曾杰; 冯罡; 吴逸雨; 马骥; 陈威
Original assignee: NANTONG PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE
Current assignee: NANTONG PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2022-03-11
Anticipated expiration: 2039-12-11
Also published as: CN110926929A

Abstract

The invention discloses a placing rack for a bending test, which comprises a strengthening base, wherein the bottom symmetrical positions of the strengthening base are fixedly connected with moving wheel devices, the middle positions of the front surface and the back surface of the top of a supporting bottom frame are fixedly connected with a central supporting rod, the front surface and the back surface of the top of the supporting bottom frame are positioned on the left side of the central supporting rod and are movably connected with a fixed hinge support, the front surface and the back surface of the top of the supporting bottom frame are positioned on the right side of the central supporting rod and are movably connected with a rolling hinge support, the middle position of the bottom of a supporting top plate is movably connected with a pressure applying device, one end, far away from the supporting top plate, of the pressure applying device is movably connected with a distribution beam, and the outer walls on two sides of the supporting bottom frame are symmetrically and fixedly connected with adjusting and transporting devices. The invention relates to the technical field of bending tests, and the device enables a bending test device to be conveniently moved and adjusted, and enables the loading and unloading of a tubular pile to be more convenient and quicker, so that the time is saved, the efficiency is improved, and the personal safety is protected.

Description

Bending test rack

Technical Field

The invention relates to the technical field of bending tests, in particular to a placing rack for a bending test.

Background

The prestressed concrete pipe pile has wide application range, and is suitable for low bearing platform pile foundations of industrial and civil buildings, engineering foundations of railways, roads, bridges, ports, docks, water conservancy, municipal works, structures, large-scale equipment and the like. The length of the pipe pile commonly used in the current engineering is between 8 and 25 meters, and because of the importance of the use of the pipe pile, the pipe pile needs to be subjected to a bending resistance test before use, so that the pipe pile can meet the use requirement, and the damage to the property and personal safety of people is avoided. The bending test device of the existing concrete pipe pile mainly has two types: one type of the test platform consists of a base fixed with the ground, a holding frame, a jack and a special travelling crane, wherein a precast pile sample is conveyed to a place provided with a fixed detection platform, the travelling crane travelling on a fixed track is used for hoisting a sample piece onto the detection platform, the detection platform is fixed and immovable, the counter force of the jack for pressurizing the sample piece is transmitted to the base by the holding frame, and the base is fixedly connected with the ground to form a counter force system; the other type is a mechanical property detection table for the foldable movable precast pile, which is invented on the basis of the former type, although the mechanical property detection table is of a movable structure, the mechanical property detection table is large in size, can be loaded only by using hoisting equipment, and is poor in flexibility. The existing bending test device is inconvenient to move, is very difficult to operate when the tubular pile is placed, easily wastes a large amount of time in the bending test, and easily harms the personal safety.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a placing frame for a bending test, which solves the problems that the existing bending test device is inconvenient to move, is very difficult to operate when a tubular pile is placed, easily wastes a large amount of time in the bending test and is easy to harm the personal safety.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a rack for bending test comprises a strengthening base, wherein symmetrical positions at the bottom of the strengthening base are fixedly connected with moving wheel devices, a supporting bottom frame is fixedly connected with the top of the strengthening base, a central supporting rod is fixedly connected with the middle position of the front surface and the back surface of the top of the supporting bottom frame, auxiliary supporting rods are fixedly connected with the symmetrical positions of the front surface and the back surface of the top of the supporting bottom frame, which are positioned at the two sides of the central supporting rod, respectively, a fixed hinged support is movably connected with the front surface and the back surface of the top of the supporting bottom frame, which are positioned at the left side of the central supporting rod, a rolling hinged support is movably connected with the front surface and the back surface of the top of the supporting bottom frame, a supporting top plate is fixedly connected with the side of the central supporting bottom frame, a pressing device is movably connected with the middle of the bottom of the supporting top plate, and a distribution beam is movably connected with the end of the pressing device, which is far away from the supporting top plate, the distributing beam is far away from one side of the pressure applying device and is close to one side of the fixed hinge support, the distributing beam is fixedly connected with the distributing beam rolling hinge support, and the supporting underframe is symmetrically and fixedly connected with adjusting and transporting devices at the outer wall of the two sides.

Preferably, the movable wheel device comprises a protection box, a supporting seat is fixedly connected to the middle position of the bottom of an inner cavity of the protection box, a fixed block is fixedly connected to the middle position of the top of the supporting seat, electric telescopic rods are fixedly connected to the outer walls of two sides of the fixed block, one end, far away from the fixed block, of each electric telescopic rod is rotatably connected with an adjusting connecting rod, and universal wheels are fixedly connected to the bottom of the adjusting connecting rods.

Preferably, the supporting seat penetrates through the protection box and extends to the bottom of the protection box, the outer surface of the supporting seat is fixedly connected with the protection box, and the middle position of the adjusting connecting rod is rotatably connected with a positioning rotating shaft.

Preferably, the front surface and the back surface of the positioning rotating shaft are fixedly connected with the protection box, the universal wheel penetrates through the protection box and extends to the bottom of the protection box, and the outer surface of the universal wheel is connected with the protection box in a sliding mode.

Preferably, one end of the auxiliary support rod, which is far away from the support bottom frame, is fixedly connected with the support top plate, and a central through hole is formed in the middle of the support bottom frame.

Preferably, the bottom of the fixed hinge support is in sliding connection with the support bottom frame, and the bottom of the rolling hinge support is in sliding connection with the support bottom frame.

Preferably, the top of the fixed hinge support is connected with the bending resistance test object in a sliding mode, and the top of the rolling hinge support is connected with the bending resistance test object in a sliding mode.

Preferably, the bottom of the distribution beam fixed hinge support is fixedly connected with a U-shaped base plate, the U-shaped base plate is connected with the bending-resistant test object in a sliding mode, the bottom of the distribution beam rolling hinge support is fixedly connected with a U-shaped base plate, and the U-shaped base plate is connected with the bending-resistant test object in a sliding mode.

Preferably, adjust conveyer including transporting branch and adjusting the telescopic link, transportation branch intermediate position has seted up logical groove, the one end rotation that transportation branch kept away from and adjust the telescopic link is connected with the guide pulley, the one end rotation that adjusts the telescopic link and be close to the guide pulley is connected with the fixed pin, the fixed pin surface with lead to groove sliding connection.

Preferably, one side that transport branch kept away from the guide pulley rotates and is connected with the installation piece, one side that transport branch was kept away from to the installation piece with support underframe fixed connection, the one end that the guide pulley was kept away from to the regulation telescopic link rotates with the support underframe and is connected.

(III) advantageous effects

The invention provides a placing rack for a bending test, which has the following beneficial effects:

the invention discloses a device which is characterized in that moving wheel devices are fixedly connected at symmetrical positions of the bottom of a strengthening base, the top of the strengthening base is fixedly connected with a supporting bottom frame, a central support rod is fixedly connected at the middle position of the front surface and the back surface of the top of the supporting bottom frame, auxiliary support rods are fixedly connected at symmetrical positions of the front surface and the back surface of the top of the supporting bottom frame, which are positioned at the two sides of the central support rod, the front surface and the back surface of the top of the supporting bottom frame are movably connected with a fixed hinged support at the left side of the central support rod, the front surface and the back surface of the top of the supporting bottom frame are movably connected with a rolling hinged support at the right side of the central support rod, one side of the central support rod, which is far away from the supporting bottom frame, is fixedly connected with a supporting top plate, the middle of the bottom of the supporting top plate is movably connected with a pressure applying device, one end of the pressure applying device, which is far away from the supporting top plate, is fixedly connected with a distributing beam hinged support at one side of the distributing beam, which is close to the fixed hinged support, one side that the device of exerting pressure was kept away from to the distribution roof beam and be close to the one side fixedly connected with distribution roof beam roll hinge support of roll hinge support, support the equal fixedly connected with in underframe both sides outer wall symmetric position and adjust conveyer, the device makes the bending test device conveniently remove to adjust, make the tubular pile go up unloading convenient and fast more simultaneously, thereby save time, raise the efficiency, and protect personal safety.

Drawings

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

FIG. 2 is a schematic view of a moving wheel device according to the present invention;

fig. 3 is a schematic structural view of the adjusting and conveying device of the invention.

Description of reference numerals:

1. strengthening the base; 2. a moving wheel device; 21. a protection box; 22. a supporting seat; 23. a fixed block; 24. an electric telescopic rod; 25. adjusting the connecting rod; 26. a universal wheel; 27. positioning the rotating shaft; 3. a support bottom frame; 4. a central support rod; 5. an auxiliary support bar; 6. a fixed hinge support; 7. a rolling hinge support; 8. supporting a top plate; 9. a pressure applying device; 10. a distribution beam; 11, fixing a hinged support by a distribution beam; 12 distribution beam rolling hinge support; 13 adjusting the transportation device; 131 transport struts; 132 adjusting the telescopic rod; 133 through grooves; 134 a guide wheel; 135 fixed pins; 136 mounting a block; 14 a central through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a rack for bending test comprises a reinforced base 1, wherein symmetrical positions at the bottom of the reinforced base 1 are fixedly connected with a moving wheel device 2, the top of the reinforced base 1 is fixedly connected with a supporting bottom frame 3, a central supporting rod 4 is fixedly connected with the middle positions of the front surface and the back surface of the top of the supporting bottom frame 3, auxiliary supporting rods 5 are fixedly connected with symmetrical positions at the two sides of the central supporting rod 4 at the front surface and the back surface of the top of the supporting bottom frame 3, the front surface and the back surface of the top of the supporting bottom frame 3 are movably connected with a fixed hinged support 6 at the left side of the central supporting rod 4, the front surface and the back surface of the top of the supporting bottom frame 3 are movably connected with a rolling hinged support 7 at the right side of the central supporting rod 4, a supporting top plate 8 is fixedly connected with one side of the central supporting rod 4 far away from the supporting bottom frame 3, a pressure applying device 9 is movably connected with the middle of the bottom of the supporting top plate 8, one end swing joint that the top board 8 was kept away from to pressure device 9 has distribution beam 10, one side that pressure device 9 was kept away from to distribution beam 10 and is close to one side fixedly connected with distribution beam fixed hinge support 11 of fixed hinge support 6, one side that pressure device 9 was kept away from to distribution beam 10 and is close to one side fixedly connected with distribution beam roll hinge support 12 of roll hinge support 7, support the equal fixedly connected with of underframe 3 both sides outer wall symmetric position and adjust conveyer 13.

Remove wheel device 2 and include

guard box

21, 21 inner chamber bottom intermediate position fixedly connected with supporting seat 22 of guard box, 22 top intermediate position fixedly connected with fixed block 23 of supporting seat, the equal fixedly connected with electric telescopic handle 24 of fixed block 23 both sides outer wall, the one end that electric telescopic handle 24 kept away from fixed block 23 is rotated and is connected with adjusting connecting rod 25, adjusting connecting rod 25 bottom fixedly connected with universal wheel 26.

The supporting seat 22 penetrates through the protection box 21 and extends to the bottom of the protection box 21, the outer surface of the supporting seat 22 is fixedly connected with the protection box 21, and the middle position of the adjusting connecting rod 25 is rotatably connected with a positioning rotating shaft 27.

The front and the back of the positioning rotating shaft 27 are fixedly connected with the protection box 21, the universal wheel 26 penetrates through the protection box 21 and extends to the bottom of the protection box 21, and the outer surface of the universal wheel 26 is connected with the protection box 21 in a sliding mode.

The one end and the roof 8 fixed connection of supporting of the bottom frame 3 are kept away from to auxiliary stay 5, the support bottom frame 3 intermediate position is provided with central through-hole 14.

The bottom of the fixed hinged support 6 is connected with the supporting bottom frame 3 in a sliding mode, and the bottom of the rolling hinged support 7 is connected with the supporting bottom frame 3 in a sliding mode.

The top of the fixed hinge support 6 is connected with the bending resistance test object in a sliding mode, and the top of the rolling hinge support 7 is connected with the bending resistance test object in a sliding mode.

The bottom of the distribution beam fixed hinge support 11 is fixedly connected with a U-shaped base plate, the U-shaped base plate is connected with the bending resistance test object in a sliding mode, the bottom of the distribution beam rolling hinge support 12 is fixedly connected with a U-shaped base plate, and the U-shaped base plate is connected with the bending resistance test object in a sliding mode.

Adjust conveyer 13 including transporting branch 131 and adjusting telescopic link 132, logical groove 133 has been seted up to transportation branch 131 intermediate position, transportation branch 131 is kept away from the one end of adjusting telescopic link 132 and is rotated and be connected with guide pulley 134, the one end of adjusting telescopic link 132 and being close to guide pulley 134 is rotated and is connected with fixed pin 135, fixed pin 135 surface and logical groove 133 sliding connection.

One side of the transportation support rod 131 far away from the guide wheel 134 is rotatably connected with an installation block 136, one side of the installation block 136 far away from the transportation support rod 131 is fixedly connected with the support bottom frame 3, and one end of the adjusting telescopic rod 132 far away from the guide wheel 134 is rotatably connected with the support bottom frame 3.

The bending resistance test device can be conveniently moved and adjusted, and meanwhile, the loading and unloading of the tubular pile are more convenient and quicker, so that the time is saved, the efficiency is improved, and the personal safety is protected.

When the device is used, the device can integrally move through the universal wheel 26, the electric telescopic rod 24 is started to drive the adjusting connecting rod 25 to rotate around the positioning rotating shaft 27, so that the universal wheel 26 is driven to incline, the supporting seat 22 is stably supported, the overall stability of the device is ensured, and the device is convenient to move simultaneously, then the pipe pile is driven to move on the guide wheel 134 through the guide wheel 134, then the adjusting telescopic rod 132 is started to drive the fixing pin 135 to move along the through groove 133, so that the transportation supporting rod 131 is rotatably adjusted around the mounting block 136, so that the height of the pipe pile is adjusted, so that the distribution beam 10 is vertically descended by starting the pressure device 9 after being placed on the fixed hinge support 6 and the rolling hinge support 7, so that the distribution beam rolling hinge support 12 and the distribution beam fixed hinge support 11 drive the U-shaped base plate to be in contact with the pipe pile, the bending test was completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The phrase "comprising a defined element does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

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 rack for the bending test comprises a strengthening base (1) and is characterized in that symmetrical positions at the bottom of the strengthening base (1) are fixedly connected with a moving wheel device (2), a supporting bottom frame (3) is fixedly connected at the top of the strengthening base (1), a central support rod (4) is fixedly connected at the front and back middle positions at the top of the supporting bottom frame (3), auxiliary support rods (5) are fixedly connected at symmetrical positions at the front and back of the top of the supporting bottom frame (3) which are positioned at the central support rod (4), a fixed hinged support (6) is movably connected at the front and back of the top of the supporting bottom frame (3) which are positioned at the left side of the central support rod (4), a rolling hinged support (7) is movably connected at the front and back of the top of the supporting bottom frame (3) which is positioned at the right side of the central support rod (4), and a supporting top plate (8) is fixedly connected at one side of the central support rod (4) far away from the supporting bottom frame (3), the middle of the bottom of the supporting top plate (8) is movably connected with a pressure applying device (9), one end, far away from the supporting top plate (8), of the pressure applying device (9) is movably connected with a distribution beam (10), one side, far away from the pressure applying device (9), of the distribution beam (10) and close to the fixed hinge support (6) is fixedly connected with a distribution beam fixed hinge support (11), one side, far away from the pressure applying device (9), of the distribution beam (10) and close to the rolling hinge support (7) is fixedly connected with a distribution beam rolling hinge support (12), and the outer walls of the two sides of the supporting bottom frame (3) are both fixedly connected with adjusting and transporting devices (13) at symmetrical positions;

the movable wheel device (2) comprises a protection box (21), a supporting seat (22) is fixedly connected to the middle position of the bottom of an inner cavity of the protection box (21), a fixed block (23) is fixedly connected to the middle position of the top of the supporting seat (22), electric telescopic rods (24) are fixedly connected to the outer walls of the two sides of the fixed block (23), one end, far away from the fixed block (23), of each electric telescopic rod (24) is rotatably connected with an adjusting connecting rod (25), and universal wheels (26) are fixedly connected to the bottoms of the adjusting connecting rods (25);

the supporting seat (22) penetrates through the protection box (21) and extends to the bottom of the protection box (21), the outer surface of the supporting seat (22) is fixedly connected with the protection box (21), and the middle position of the adjusting connecting rod (25) is rotatably connected with a positioning rotating shaft (27);

the adjusting and conveying device (13) comprises a conveying support rod (131) and an adjusting telescopic rod (132), a through groove (133) is formed in the middle of the conveying support rod (131), one end, far away from the adjusting telescopic rod (132), of the conveying support rod (131) is rotatably connected with a guide wheel (134), one end, close to the guide wheel (134), of the adjusting telescopic rod (132) is rotatably connected with a fixing pin (135), and the outer surface of the fixing pin (135) is in sliding connection with the through groove (133);

transport branch (131) keep away from one side rotation of guide pulley (134) and be connected with installation piece (136), one side and the support underframe (3) fixed connection of transport branch (131) are kept away from in installation piece (136), adjust telescopic link (132) and keep away from the one end of guide pulley (134) and support underframe (3) and rotate and be connected.

2. The bending test rack according to claim 1, wherein the front and back of the positioning rotating shaft (27) are fixedly connected with the protection box (21), the universal wheels (26) penetrate through the protection box (21) and extend to the bottom of the protection box (21), and the outer surfaces of the universal wheels (26) are slidably connected with the protection box (21).

3. The bending test rack according to claim 1, wherein one end of the auxiliary support rod (5) far away from the support bottom frame (3) is fixedly connected with the support top plate (8), and a central through hole (14) is formed in the middle of the support bottom frame (3).

4. The rack for bending test according to claim 1, wherein the bottom of the fixed hinge support (6) is slidably connected with the support bottom frame (3), and the bottom of the rolling hinge support (7) is slidably connected with the support bottom frame (3).

5. The rack for bending test according to claim 1, wherein the top of the fixed hinge support (6) is connected with the bending test object in a sliding way, and the top of the rolling hinge support (7) is connected with the bending test object in a sliding way.

6. The bending test rack according to claim 1, wherein a U-shaped backing plate is fixedly connected to the bottom of the distributing beam fixed hinge support (11) and is in sliding connection with the bending test object, and a U-shaped backing plate is fixedly connected to the bottom of the distributing beam rolling hinge support (12) and is in sliding connection with the bending test object.