CN216747111U

CN216747111U - Steel bar bending tester

Info

Publication number: CN216747111U
Application number: CN202220177304.5U
Authority: CN
Inventors: 沈志超; 孔芳芳; 罗玉婷; 徐建红; 林泉
Original assignee: Xiamen Traffic Construction Engineering Inspection Co ltd
Current assignee: Xiamen Traffic Construction Engineering Inspection Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-14
Anticipated expiration: 2032-01-21

Abstract

The application discloses reinforcing bar bending test machine relates to reinforcing bar bending test field, and it includes frame, workstation, spiral adjusting device and stop gear all install on the workstation, still include and prevent shifting mechanism, be equipped with the working disc on the workstation, spiral adjusting device and stop gear press from both sides the sample level tightly on the working disc, prevent that shifting mechanism presss from both sides the sample vertically tightly on the working disc. This application has the crooked effect that experimental result accuracy is high of reinforcing bar sample deformation.

Description

Steel bar bending tester

Technical Field

The application relates to a reinforcing bar bending test field especially relates to a reinforcing bar bending test machine.

Background

At present, the fields of metallurgy, machine manufacturing, building construction, engineering supervision, technical quality detection and the like need to carry out plane forward and reverse bending tests on the reinforcing steel bars, test whether the reinforcing steel bars are fractured when being bent or not, and carry out the reinforcing steel bar bending test by using a reinforcing steel bar bending tester commonly used.

In the related art, the steel bar bending tester mainly comprises a transmission mechanism, a rack, a workbench, a spiral adjusting device and a limiting mechanism. Drive mechanism is including installing in inside motor and the reduction gear of frame, is provided with the working disc on the workstation, is provided with curved heart cover, working roll, locating hole, erection column and backer fagging on the working disc, during the use, puts the reinforcing bar sample to operating position, waves the handle and makes the backer fagging be close to the sample, and adjustment working disc makes the working roll be close to the sample and supports one side rotation to suitable position of backer fagging, then begins the operation machine, carries out bending test.

In view of the above-mentioned related art, when the steel bar is bent, the steel bar is easily bounced from the working roll, which affects the experimental result.

SUMMERY OF THE UTILITY MODEL

In order to solve the reinforcing bar bending test machine among the prior art and can take place the reinforcing bar sample and bounce from the working roll when carrying out bending test to the reinforcing bar, lead to the problem that the experimental result received the influence, this application provides a reinforcing bar bending test machine.

The application provides a reinforcing bar bending test machine adopts following technical scheme:

the utility model provides a bending tester for steel bars, includes frame, workstation, spiral adjusting device and stop gear, the workstation is the last flat board of machine, and spiral adjusting device and stop gear all install on the workstation, still include and prevent shifting mechanism, be equipped with the working disc on the workstation, spiral adjusting device and stop gear press from both sides the sample level tightly on the working disc, prevent that shifting mechanism is with the vertical clamp of sample on the working disc.

Through adopting above-mentioned technical scheme, when using the reinforcing bar sample to carry out bending test, at first utilize spiral adjusting device and stop gear to install the sample on the working disc, then utilize the anti-migration mechanism to fix the sample on the working disc, the horizontal direction and the vertical direction of sample are all pressed from both sides tightly fixed this moment, are difficult for taking place the skew, utilize the rotation of working disc to drive the sample motion, make the reinforcing bar sample begin to warp crooked, the experimental result accuracy of sample is high.

Preferably, the limiting mechanism comprises a curved core sleeve and a working roller, the working disc is provided with an installation column for installing the curved core sleeve and a positioning hole for installing the working roller, the installation column is located at the axis position of the working disc, the positioning hole is located at the edge of the working disc, and two sides of the sample respectively abut against the curved core sleeve and the side wall of the working roller.

Through adopting above-mentioned technical scheme, when carrying out the experiment, utilize the position to on the required detection reinforcing bar sample that curved core cover can be accurate to fix a position, rotate through the working disc and drive the work roll and remove and buckle the promotion experiment to reinforcing bar sample and go on.

Preferably, the anti-deviation mechanism comprises a roller sleeve, the roller sleeve is sleeved on the working roller, the side surface of the sample abuts against the side surface of the working roller, and the top surface of the sample abuts against the lower end surface of the roller sleeve.

Through adopting above-mentioned technical scheme, utilize the side of working roll to support the sample side, when preventing its horizontal migration the working roll reaches reinforcing bar sample bending deformation's purpose to its application of force, utilizes terminal surface support sample under the roller shell, prevents that the reinforcing bar sample from taking place the ascending skew of vertical side.

Preferably, the side surface of the working roll is provided with a threaded part and a smooth surface part at intervals, the smooth surface part abuts against the sample, and the roll sleeve is in threaded connection with the threaded part on the outer surface of the working roll.

Through adopting above-mentioned technical scheme, utilize smooth face and reinforcing bar sample to offset, prevent that the threaded face of taking from causing the fish tail to influence the experimental result to the sample, the part of taking the screw thread then can be in the same place roller shell and working roll spiro union, makes the supporting reinforcing bar sample that the roller shell can be firm.

Preferably, the roller sleeve is in a circular truncated cone shape, and one end of the roller sleeve with a large diameter is close to the sample.

Through adopting above-mentioned technical scheme, utilize the design of round platform shape, practiced thrift the roller shell material, make it light convenient taking more, the terminal surface remains great area down, can offset with the sample better application of force, prevents that the sample from squinting.

Preferably, the anti-deviation component comprises a fixing sleeve and a fixing bolt, the fixing sleeve is sleeved on the working roll and is connected with the working roll in a sliding mode up and down, the side face of the sample is abutted against the side face of the working roll, the top face of the sample is abutted against the lower end face of the fixing sleeve, the lower end of the fixing bolt is connected with the working roll in a rotating mode, and the upper end of the fixing bolt is connected with the fixing sleeve in a threaded mode.

Through adopting above-mentioned technical scheme, the working roll promotes the bending of reinforcing bar sample, fixed cover sets up to keep away from working disk one side for the hollow cylinder of closing surface, and the cooperation can be adjusted the height of fixed cover on the working roll between fixing bolt, fixed cover and the working roll to adapt to the sample of different diameters, the top surface of sample offsets with the lower terminal surface of fixed cover, prevents that the sample from squinting in vertical direction.

Preferably, the top end of the working roll is provided with a rotating sleeve, the rotating sleeve is positioned at the axis position of the working roll and is rotationally connected with the working roll, and the lower end of the fixing bolt is fixedly connected onto the rotating sleeve.

Through adopting above-mentioned technical scheme, rotate the cover and be located the working roll top, stress concentration when the working roll carries out bending test to the sample.

Preferably, the working disc is provided with a plurality of positioning holes with different distances from the bending core sleeve.

Through adopting above-mentioned technical scheme, utilize the locating hole installation work roll, and the locating hole is different apart from the distance of curved heart cover, can carry out the crooked experiment of reinforcing bar sample to the reinforcing bar sample of equidimension not through using different locating holes.

Preferably, the rack is provided with a protective cover, and the working disc, the limiting mechanism and the deviation preventing mechanism are all located in the protective cover.

Through adopting above-mentioned technical scheme, when the experiment, the closure the safety cover effectively prevents the piece departure.

In summary, the present application includes at least one of the following beneficial technical effects:

the steel bar sample can be effectively prevented from bouncing from the working roll when the steel bar bending test is carried out, so that the test result is influenced;

the positioning holes with different distances from the axial center of the working disc can enable the machine to process steel bar samples with various sizes;

the safety cover can protect the test area, prevents the piece departure, also can protect the staff.

Drawings

FIG. 1 is a schematic overall structure diagram of the first embodiment;

FIG. 2 is a schematic structural view of a support block and a limiting mechanism in the first embodiment;

FIG. 3 is a cross-sectional view of the first embodiment;

FIG. 4 is a schematic structural diagram of a screw adjusting device according to an embodiment;

FIG. 5 is a schematic view of the structure of the anti-shift mechanism and the position-limiting mechanism in the first embodiment;

FIG. 6 is a schematic view showing the overall structure of the second embodiment;

FIG. 7 is a sectional view of the second embodiment;

fig. 8 is an exploded view of the deviation preventing mechanism according to the second embodiment.

Description of reference numerals:

1. a frame; 2. a work table; 3. a screw adjustment device; 31. a screw sleeve seat; 32. an oil cup; 33. a screw; 34. a handle; 35. a sliding post; 4. a limiting mechanism; 41. bending the core sleeve; 42. a support block; 421. a column; 43. a work roll; 44. A backer board; 441. a connecting plate; 442. A connecting member; 5. a control panel; 6. a protective cover; 61. a hinged support; 7. a working plate; 71. positioning holes; 72. mounting a column; 8. a roller sleeve; 81. a thread; 82. smoothing the face; 83. a threaded portion; 9. fixing a sleeve; 91 raised lines; 92. rotating the sleeve; 93. fixing the bolt; 931. a handle; 94. a chute.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The first embodiment is as follows:

the embodiment of the application discloses a steel bar bending tester, and with reference to fig. 1, the steel bar bending tester comprises a rack 1, a transmission mechanism, a workbench 2, a spiral adjusting device 3, a limiting mechanism 4, a control panel 5 and a protective cover 6; the machine frame 1 is a box body which is welded by square steel and steel plates and is provided with a side door and mainly plays a role in supporting and bearing as a main body part of the whole machine; the transmission part is positioned in the frame 1 and transmits the power of the brake motor to the workbench 2 through the bipolar cycloidal pinwheel reducer; the workbench 2 is an upper flat plate of the machine, and a working disc 7 is arranged on the workbench 2 and is a position for performing a steel bar bending test; the spiral adjusting device 3 is positioned at one side of the workbench 2, and can prevent the steel bar sample from shifting in the horizontal direction; the limiting mechanism 4 is positioned on the working disc 7 and can limit the position of the bending test of the steel bar sample; the control panel 5 is positioned at one side of the workbench 2 and can control the bending angle of the test; a protective cover 6 is located on the table 2, primarily to prevent debris from flying out.

Referring to fig. 2 and 3, the limiting mechanism 4 includes a curved core sleeve 41 inserted into the top of the working disk 7, a supporting block 42 located on one side of the working table 2, a working roller 43 located on the working table 2, and a backer plate 44 rotatably connected to the top of the supporting block 42. Wherein, the top axis position of the working disk 7 is provided with a mounting column 72, the curved core sleeve 41 is sleeved on the mounting column 72 and is coaxial with the working disk 7, and the curved core sleeve 41 can rotate under the rotation of the working disk 7.

The supporting block 42 is located on one side of the workbench 2, the supporting block 42 is provided with a column 421 with a vertical axis and one end inserted on the supporting block 42, one end of the supporting block 42 is provided with a mounting hole, one end of the backer plate 44 close to the supporting block 42 is arranged on the mounting hole, one end of the connecting piece 442 penetrates through a hole on the backer plate 44 and is connected to the mounting hole in a threaded manner, the backer plate 44 is rotatably connected to the supporting block 42 through the connecting piece 442, and the backer plate 44 can rotate around the axis of the connecting piece 442.

The working disc 7 is provided with a plurality of positioning holes 71, the diameter of the bending core sleeve 41 is larger than that of the positioning holes 71, the working roller 43 is inserted into one of the positioning holes 71, one side wall of one end of the steel bar sample abuts against the side wall of the upright column 421, and the side wall of the other end of the steel bar sample abuts against the side walls of the bending core sleeve 41 and the working roller 43. The distance from each positioning hole 71 to the axis of the bending core 41 is different, and the position of the working roll 43 can be adjusted according to the bending angle of the steel bar or the size of the steel bar.

Referring to fig. 1 and 4, a screw adjusting device 3 is located at one side of the worktable 2 and adjacent to the supporting block 42, and the screw adjusting device 3 includes a screw socket 31, an oil cup 32, a screw 33 and a handle 34. Wherein the screw sleeve seat 31 is fixedly connected on the workbench 2, the oil cup 32 is positioned on the screw sleeve seat 31, one end of the screw rod 33 is adjacent to the oil cup 32, the other end is fixedly connected with one side of the backer supporting plate 44 far away from the curved core sleeve 41, and the handle 34 is positioned on one side of the screw sleeve seat 31 close to the working disc 7.

One side of the backer plate 44, which is close to the screw sleeve seat 31, is fixedly connected with two connecting plates 441 which are arranged along the vertical direction and a sliding column 35 which connects the two connecting plates 441, and the two connecting plates 441 are both fixedly connected with one side of the backer plate 44, which is far away from the curved core sleeve 41. Referring to fig. 2, the sliding column 35 sequentially passes through the first connecting plate 441, the screw 33 and the second connecting plate 441, and the sliding column 35 is rotatably connected to the two connecting plates 441. Through the connecting plate 441 and the sliding column 35, while the screw 33 drives the backer plate 44 to move, one end of the screw 33 close to the backer plate 44 and the connecting plate 441 rotate mutually.

The reinforcing steel bar sample is arranged on the supporting block 42 and the working disc 7, one side of the reinforcing steel bar sample is abutted against the backer supporting plate 44, the two ends of the other side of the reinforcing steel bar sample are respectively abutted against the curved core sleeve 41 and the side wall of the upright column 421, and when the handle 34 is rotated, the screw 33 pushes the backer supporting plate 44 to move so as to clamp the reinforcing steel bar sample between the curved core sleeve 41 and the backer supporting plate 44.

The supporting block 42 is provided with a plurality of placing holes, each placing hole can be used for placing the working roller 43 with different diameters, and when the working rollers 43 need to be used, the working rollers 43 on the placing holes are taken down and placed in the positioning holes 71.

Referring to fig. 3 and 5, the anti-deviation mechanism comprises a roller sleeve 8, a threaded portion 83 and a smooth surface portion 82 are circumferentially arranged on the side wall of the working roller 43 at intervals, wherein a thread 81 is arranged in the roller sleeve 8, the roller sleeve 8 is screwed on the threaded portion 83 of the working roller 43, the distance between the end portion of the roller sleeve 8 and the end portion of the working roller 43 can be adjusted by rotating the roller sleeve 8 and the working roller 43, and a steel bar sample can be clamped on the working disc 7 in the process of moving the roller sleeve 8 downwards.

The roller sleeve 8 is in a circular truncated cone shape, the surface with the larger diameter faces the working disc 7, namely the surface with the larger diameter supports against a steel bar sample, the surface with the smaller diameter plays a role in saving materials, and the weight of the roller sleeve 8 is reduced.

Through 8 distances of terminal surface and workstation 2 under the rotatory roller shell 8 adjustment roller shells to this adapts to the not reinforcing bar sample of equidimension, utilizes 8 terminal surfaces of roller shell to support the reinforcing bar sample, prevents that the reinforcing bar sample from taking place the ascending skew of vertical side, can not exert an influence to the experimental result.

Referring to fig. 1, the one end that the supporting shoe 42 was kept away from to the protection cover 6 is connected with workstation 2 through hinge support 61 rotation, and when the protection cover 6 cover was located workstation 2, service disk 7, backer fagging 44, supporting shoe 42 and reinforcing bar sample all were located protection cover 6 below, can effectually prevent the piece departure like this, also played the guard action to the staff when being convenient for to clear up, prevented that the piece from flying into its positions such as eye.

The implementation principle of this application embodiment reinforcing bar bending test machine does: the working roller 43 is installed by selecting a proper positioning hole 71 according to the size of the steel bar sample, and the supporting plate 44 is installed by selecting a proper upright column 421 in a matching way, the curved core sleeve 41 is installed on the installation column 72, when the steel bar sample is placed, the backer supporting plate 44 and the working roll 43 are positioned on the same side of the steel bar sample, the bending core sleeve 41 is positioned on one side of the sample far away from the working roll 43, the deviation of a steel bar sample in the horizontal direction is prevented through the backer supporting plate 44, the working roller 43 and the bending sleeve 41 during the experiment, the roller sleeve 8 is sleeved on the working roller 43, the roller sleeve 8 is rotated to adjust the roller sleeve 8 to a proper position, the lower end surface of the roller sleeve 8 is abutted against the steel bar sample to prevent the deviation in the vertical direction during the experiment, the motor drives the working disc 7 to rotate to realize the bending experiment of the steel bar, the deviation of the vertical direction of the reinforcing steel bar is prevented from causing experimental result errors through the roller sleeve 8 in the process of bending the reinforcing steel bar.

Example two:

referring to fig. 6, the difference from the first embodiment is that the deviation preventing mechanism is different.

Specifically, referring to fig. 7 and 8, the deviation preventing mechanism includes: a fixed sleeve 9, a rotating sleeve 92 and a fixed bolt 93. Fixed cover 9 sets up to keep away from 2 one sides of workstation for the hollow cylinder of closing surface, and on fixed cover 9 cover was located work roll 43, the lateral wall of work roll 43 was equipped with spout 94, and fixed cover 9 is inside to be equipped with the slip sand grip, and the slip sand grip slides and connects in spout 94, is equipped with the screw thread through-hole on the closing surface of fixed cover 9. The rotating sleeve 92 is located at the axis position of the working roller 43 and is rotationally connected with the working roller 43, the lower end of the fixing bolt 93 is fixedly connected to the rotating sleeve 92, the rotating sleeve 92 is rotationally connected with the working roller 43 and is in threaded connection with the fixing sleeve 9, a handle is arranged at one end, far away from the rotating sleeve 92, of the fixing bolt 93, and the position of the fixing sleeve 9 can be adjusted conveniently and laborsavingly. When testing, rotate the handle, drive clamping screw 33 and rotate, and then drive fixed cover 9 and move down to and offset with the top surface of reinforcing bar sample, prevent that the reinforcing bar sample from squinting in vertical direction.

The implementation principle of this application embodiment reinforcing bar bending test machine does: the working roller 43 is installed by selecting a proper positioning hole 71 according to the size of the steel bar sample, and the supporting plate 44 is installed by selecting a proper upright column 421 in a matching way, the curved core sleeve 41 is installed on the installation column 72, when the steel bar sample is placed, the backer supporting plate 44 and the working roll 43 are positioned on the same side of the steel bar sample, the bending core sleeve 41 is positioned on one side of the sample far away from the working roll 43, the deviation of the steel bar sample in the horizontal direction during the experiment is prevented by the backer supporting plate 44, the working roller 43 and the curved core sleeve 41, the fixed sleeve 9 is arranged on the working roller 43, the fixing sleeve 9 is adjusted to a proper position by rotating the handle 931, so that the lower end face of the fixing sleeve 9 is abutted against a steel bar sample to prevent the steel bar sample from deviating in the vertical direction in the experimental process, the motor drives the working disc 7 to rotate to realize the bending experiment of the steel bar, the deviation of the steel bar in the vertical direction is prevented from causing experimental result errors through the fixing sleeve 9 in the bending process of the steel bar.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a reinforcing bar bending test machine, includes frame (1), workstation (2), spiral adjusting device (3) and stop gear (4) are all installed on workstation (2), its characterized in that: still include anti-migration mechanism, be equipped with working disc (7) on workstation (2), spiral adjusting device (3) and stop gear (4) press from both sides the sample level tight on working disc (7), anti-migration mechanism is with the vertical clamp of sample on working disc (7).

2. The bar bending tester according to claim 1, wherein: stop gear (4) are including curved heart cover (41) and work roll (43), be provided with erection column (72) that are used for installing curved heart cover (41) on work dish (7) and be used for installing locating hole (71) of work roll (43), the erection column is located work dish (7) axle center position department, locating hole (71) are located work dish (7) edge, the both sides of sample offset with curved heart cover (41) and work roll (43) lateral wall respectively.

3. The reinforcing bar bending tester according to claim 2, wherein: the anti-deviation mechanism comprises a roller sleeve (8), the roller sleeve (8) is sleeved on the working roller (43), the side face of the sample is abutted against the side face of the working roller (43), and the top face of the sample is abutted against the lower end face of the roller sleeve (8).

4. The reinforcing bar bending tester according to claim 3, wherein: the side of work roll (43) interval is provided with screw thread (81) portion and smooth face portion (82), smooth face portion (82) offset with the sample, roller shell (8) spiro union is in screw thread (81) portion of work roll (43) surface.

5. The reinforcing bar bending tester according to claim 3, wherein: the roller sleeve (8) is in a circular truncated cone shape, and one end of the roller sleeve (8) with a large diameter is close to the sample.

6. The reinforcing bar bending tester according to claim 2, wherein: prevent skew part including fixed cover (9) and fixing bolt (93), fixed cover (9) cover is located on work roll (43) and is slided from top to bottom with work roll (43) and be connected, the side and the work roll (43) side of sample offset, the top surface of sample offsets with the lower terminal surface of fixed cover (9), the lower extreme and the work roll (43) of fixing bolt (93) rotate to be connected, and the upper end is connected with fixed cover (9) screw thread (81).

7. The reinforcing bar bending tester of claim 6, wherein: the top end of the working roll (43) is provided with a rotating sleeve (92), the rotating sleeve (92) is located at the axis position of the working roll (43) and is rotatably connected with the working roll (43), and the lower end of the fixing bolt (93) is fixedly connected to the rotating sleeve (92).

8. The reinforcing bar bending tester according to claim 2, wherein: the working disc (7) is provided with a plurality of positioning holes (71) with different distances from the bending core sleeve (41).

9. The bar bending tester according to claim 1, wherein: the automatic anti-deviation device is characterized in that a protective cover (6) is arranged on the rack (1), and the working disc (7), the limiting mechanism (4) and the anti-deviation mechanism are all located in the protective cover (6).