CN218726168U

CN218726168U - Steel strand tension test equipment

Info

Publication number: CN218726168U
Application number: CN202222806465.9U
Authority: CN
Inventors: 张强; 刘次啟; 杨佳成
Original assignee: Guizhou Building Materials Product Quality Inspection And Testing Institute
Current assignee: Guizhou Building Materials Product Quality Inspection And Testing Institute
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-24
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to a steel strand wires stretching resistance detects technical field, especially relates to a steel strand wires tensile test equipment. The utility model provides a pair of steel strand wires tensile test equipment, when having solved among the prior art steel strand wires tensile test, the steel strand wires probably appear inclining, cause the technical problem that experimental precision is low. The steel strand tensile test equipment comprises a base, wherein the base is provided with stand columns, a cross beam is arranged between the two stand columns, the cross beam is connected with a longitudinal beam in a sliding manner, the cross beam and the longitudinal beam are both horizontally arranged, the longitudinal beam is provided with a sliding block, the sliding block is connected to the cross beam in a sliding manner, the longitudinal beam is provided with a sliding seat in a sliding manner, and the sliding seat is provided with an upper clamp; through crossbeam, longeron, slider and slide, go up the clamp and can follow crossbeam, longeron slip on the horizontal direction to make the steel strand wires atress back, go up the position that the clamp was gone up in the slip correction of clamp, make the steel strand wires be in vertical state, improved steel strand wires tensile test precision.

Description

Steel strand tension test equipment

Technical Field

The utility model relates to a steel strand wires stretching resistance detects technical field, especially relates to a steel strand wires tensile test equipment.

Background

The steel strand is a stranded steel cable composed of 2, 3, 7 or 19 high-strength steel wires, and is subjected to stress relief treatment, so that the steel strand is suitable for prestressed concrete or similar applications, and the prestressed steel strand is mainly characterized by high strength and good relaxation performance, and is straightened when being unfolded, and the common tensile strength grades are 1860 MPa and 1720, 1770, 1960, 2000 and 2100 MPa.

Because the steel strand is generally rope-shaped and is not easy to fix on the detection equipment, in order to make the detection equipment easy to operate, the steel strand is usually fixed on the detection equipment by adopting a clamp. When the clamp is used for fixing the steel strand on the detection equipment, the clamping position of the clamp is staggered, so that the axis of the steel strand is difficult to be positioned on a vertical line, and therefore, the steel strand can possibly handle an inclined state when a tension test is carried out, and the tension test precision of the steel strand is influenced at the moment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of steel strand wires tensile test equipment, when having solved among the prior art steel strand wires tensile test, the steel strand wires probably appear inclining, cause the technical problem that experimental precision is low.

Some embodiments adopted to solve the above technical problems include:

the steel strand tensile test equipment comprises a base, wherein the base is provided with two stand columns, a cross beam is arranged between the two stand columns, the cross beam is connected with a longitudinal beam in a sliding manner, the cross beam and the longitudinal beam are both horizontally arranged, the cross beam is perpendicular to the longitudinal beam, the longitudinal beam is provided with a sliding block, the sliding block is connected with the cross beam in a sliding manner, the longitudinal beam is provided with a sliding seat in a sliding manner, and the sliding seat is provided with an upper clamp;

the base is provided with a sliding frame which reciprocates along the vertical direction, the base is also provided with a driver which drives the sliding frame to move, the sliding frame is provided with a lower clamp, the base is also provided with a guide post, the guide post and the base are of an integrated structure, and the sliding frame is provided with a guide hole which is matched with the guide post;

the guide post is provided with scale marks for marking the position of the sliding frame.

One end of the steel strand is fixed on the upper clamp, the other end of the steel strand is fixed on the lower clamp, then the driver is started, the driver drives the sliding frame to move downwards, the lower clamp is fixed on the sliding frame, and when the sliding frame moves downwards, the lower clamp applies acting force to the steel strand. When the steel strand is in an inclined state, the upper clamp can slide in the horizontal direction relative to the longitudinal beam and the cross beam, so that after the steel strand is in the inclined state and is stressed, the upper clamp moves in the horizontal direction relative to the cross beam or the longitudinal beam, the relative position of the upper clamp is changed, and the steel strand is in a vertical state. And measuring the lengths of the steel strand before and after the steel strand is stressed to obtain the tension parameters of the steel strand.

Through crossbeam, longeron, slider and slide, go up the clamp and can follow crossbeam, longeron slip on the horizontal direction to make the steel strand wires atress back, go up the position that the clamp was gone up in the slip correction of clamp, make the steel strand wires be in vertical state, improved steel strand wires tensile test precision.

Through setting up the scale mark, when the steel strand wires carried out tensile test, operating personnel easily observed, improved steel strand wires tensile test efficiency.

Preferably, the cross section of the cross beam is in a trapezoid shape with a narrow top and a wide bottom, and the sliding block is provided with a sliding groove matched with the cross beam.

In this scheme, the cross sectional shape of crossbeam is trapezoidal, and for circular, the crossbeam has higher bending strength, and it is not flexible to dye violently behind the steel strand wires atress, has improved steel strand wires tensile test precision.

Preferably, the sliding block and the longitudinal beam are of an integrated structure.

In this scheme, slider and longeron joint strength are high.

Preferably, the cross section of the longitudinal beam is in a trapezoid shape with a narrow top and a wide bottom, and the sliding seat is provided with a groove body matched with the longitudinal beam.

In this scheme, the longeron has higher bending strength, and when carrying out steel strand wires tensile test, the longeron is not flexible, has improved the test precision.

Preferably, the upper clamp comprises an upper base body, the upper base body is fixed to the sliding base through screws, the upper clamp further comprises an upper fixed clamping arm and an upper movable clamping arm, the upper movable clamping arm is connected to the upper base body in a sliding mode, the upper fixed clamping arm and the upper base body are of an integrated structure, an upper screw rod is further arranged on the upper base body, and an upper screw hole matched with the upper screw rod is formed in the upper movable clamping arm.

In this scheme, go up clamp simple structure, easily processing. And, the upper clamp can effectively position the steel strand.

Preferably, the scale mark is recessed into the guide post, and a paint layer is coated in the scale mark.

In this scheme, the scale mark is recessed in the guide post, and the scale mark is difficult by wearing and tearing. By providing a paint layer, the scale lines are easy to view.

Preferably, the number of the guide columns is at least four.

In this scheme, the guide post has good guiding performance.

Preferably, the carriage comprises a panel and a frame body arranged on the panel, the frame body is arranged on one side, away from the lower clamp, of the panel, and the frame body and the panel are of an integrated structure.

In this scheme, through setting up the panel, it is nimble to go up clamp setting position.

Preferably, a plate body is arranged at one end, away from the panel, of the frame body, the driver is arranged on the motor of the base, a screw rod is arranged on an output shaft of the motor, and a screw hole matched with the screw rod is formed in the plate body.

In this scheme, through setting up the plate body, the screw sets up on the plate body, and the screw set up the position nimble, and then make setting up the position of motor nimble. The drive is easy to assemble and maintain.

Preferably, the plate body and the frame body are of an integrated structure, an accommodating space is formed between the plate body and the frame body, a part of the screw rod extends into the accommodating space, the motor is fixed on the base through screws, and the output shaft and the screw rod are of an integrated structure.

In this scheme, plate body and support body joint strength are high. The lead screw can extend to one part of the accommodating space due to the arrangement of the accommodating space, so that the sliding frame has a larger stroke, and the steel strand of different specifications can be subjected to a tensile test.

Compared with the prior art, the utility model provides a steel strand wires tensile test equipment has following advantage:

Drawings

For purposes of explanation, several embodiments of the present technology are set forth in the following figures. The following drawings are incorporated herein and constitute a part of the detailed description. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the subject technology.

Fig. 1 is a schematic view of the present invention in a first direction.

Fig. 2 is a schematic view of the present invention in a second direction.

Fig. 3 is a schematic view of the first direction after the middle base and the longitudinal beam are assembled.

Fig. 4 is a schematic view of the second direction after the middle base and the longitudinal beam are assembled.

Fig. 5 is a schematic view of the carriage in a first orientation.

Fig. 6 is a schematic view of the carriage in a second orientation.

In the figure:

1. base, 11, stand, 12, crossbeam.

2. The device comprises a longitudinal beam, 21, a sliding block, 22, a sliding seat, 23, an upper clamp, 231, an upper seat body, 232, an upper fixed clamping arm, 233, an upper movable clamping arm, 234 and an upper lead screw.

3. The device comprises a sliding frame, 31, a driver, 311, a motor, 312, an output shaft, 32, a lower clamp, 33, a guide column, 34, a panel, 35, a frame body, 36, a plate body, 37 and an accommodating space.

Detailed Description

The specific embodiments illustrated below are intended as descriptions of various configurations of the subject technology and are not intended to represent the only configurations in which the subject technology may be practiced. Specific embodiments include specific details for the purpose of providing a thorough understanding of the subject technology of the present invention. It will be apparent, however, to one skilled in the art that the subject technology is not limited to the specific details shown herein and may be practiced without these specific details.

Referring to fig. 1 to 6, the steel strand tensile test equipment comprises a base 1, wherein the base 1 is provided with two upright posts 11, a cross beam 12 is arranged between the two upright posts 11, the cross beam 12 is connected with a longitudinal beam 2 in a sliding manner, the cross beam 12 and the longitudinal beam 2 are both horizontally arranged, the cross beam 12 is perpendicular to the longitudinal beam 2, the longitudinal beam 2 is provided with a slide block 21, the slide block 21 is connected with the cross beam 12 in a sliding manner, the longitudinal beam 2 is provided with a slide seat 22 in a sliding manner, and the slide seat 22 is provided with an upper clamp 23;

the base 1 is provided with a sliding frame 3 which reciprocates along the vertical direction, the base 1 is further provided with a driver 31 which drives the sliding frame 3 to displace, the sliding frame 3 is provided with a lower clamp 32, the base 1 is further provided with a guide post 33, the guide post 33 and the base 1 are of an integrated structure, and the sliding frame 3 is provided with a guide hole which is matched with the guide post 33;

the guide post 33 is provided with graduation marks which mark the position of the carriage 3.

The upper and

lower clamps

23, 32 may be conventional vise clamps.

In some embodiments, the cross-section of the cross beam 12 is a trapezoid with a narrow top and a wide bottom, and the sliding block 21 is provided with a sliding slot engaged with the cross beam 12.

The sliding block 21 and the longitudinal beam 2 are of an integrated structure.

The cross section of the longitudinal beam 2 is in a trapezoid shape with a narrow top and a wide bottom, and the sliding seat 22 is provided with a groove body matched with the longitudinal beam 2.

In some embodiments, the upper clamp 23 includes an upper base 231, the upper base 231 is fixed to the slide 22 by screws, the upper clamp 23 further includes an upper fixed clamping arm 232 and an upper movable clamping arm 233, the upper movable clamping arm 233 is slidably connected to the upper base 231, the upper fixed clamping arm 232 and the upper base 231 are an integral structure, the upper base 231 is further provided with an upper lead screw 234, and the upper movable clamping arm 233 is provided with an upper screw hole matched with the upper lead screw 234.

The lower clamp 32 comprises a lower base body, the lower base body is fixed on the sliding frame 3 through a screw, the lower clamp 32 further comprises a lower fixed clamping arm and a lower movable clamping arm, the lower movable clamping arm is connected with the lower base body in a sliding mode, the lower fixed clamping arm and the lower base body are of an integrated structure, a lower lead screw is further arranged on the lower base body, and an upper screw hole matched with the lower lead screw is formed in the lower movable clamping arm.

In some embodiments, the graduations are recessed within the guide post 33, and a paint layer is applied within the graduations.

The number of the guide posts 33 is at least four.

In some embodiments, the carriage 3 includes a panel 34 and a frame 35 disposed on the panel 34, the frame 35 is disposed on a side of the panel 34 away from the lower clamp 32, and the frame 35 and the panel 34 are of a unitary structure.

The frame body 35 is kept away from the one end of panel 34 is provided with plate body 36, driver 31 for set up in base 1's motor 311, motor 311's output shaft 312 is provided with the lead screw, plate body 36 be provided with lead screw complex screw.

The plate body 36 and the frame body 35 are of an integrated structure, an accommodating space 37 is formed between the plate body 36 and the frame body 35, a part of the lead screw extends into the accommodating space 37, the motor 311 is fixed on the base 1 through a screw, and the output shaft 312 and the lead screw are of an integrated structure.

The motor 311 may be replaced by a hydraulic cylinder, and a moving part of the hydraulic cylinder may be directly and fixedly connected to the frame body 35.

The subject technical solution and the corresponding details of the present invention are introduced above, and it is understood that the above description is only some embodiments of the subject technical solution of the present invention, and some details can be omitted when the subject technical solution is implemented.

In addition, in some embodiments of the above utility model, there is a possibility that a plurality of embodiments may be combined to be implemented, and various combinations are not limited to space and are not listed. The above embodiments can be freely combined and implemented by those skilled in the art according to the requirements in the specific implementation so as to obtain a better application experience.

In carrying out the subject matter of the present invention, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter of the present invention and drawings, and it is obvious that these details still belong to the scope covered by the subject matter of the present invention without departing from the subject matter of the present invention.

Claims

1. The utility model provides a steel strand wires tensile test equipment which characterized in that: the device comprises a base (1), wherein the base (1) is provided with two upright posts (11), a cross beam (12) is arranged between the two upright posts (11), the cross beam (12) is connected with a longitudinal beam (2) in a sliding manner, the cross beam (12) and the longitudinal beam (2) are both horizontally arranged, the cross beam (12) is perpendicular to the longitudinal beam (2), the longitudinal beam (2) is provided with a sliding block (21), the sliding block (21) is connected to the cross beam (12) in a sliding manner, the longitudinal beam (2) is provided with a sliding seat (22) in a sliding manner, and the sliding seat (22) is provided with an upper clamp (23);

the base (1) is provided with a sliding frame (3) which reciprocates along the vertical direction, the base (1) is further provided with a driver (31) which drives the sliding frame (3) to move, the sliding frame (3) is provided with a lower clamp (32), the base (1) is further provided with a guide post (33), the guide post (33) and the base (1) are of an integrated structure, and the sliding frame (3) is provided with a guide hole which is matched with the guide post (33);

the guide post (33) is provided with scale marks for marking the position of the sliding frame (3).

2. The steel strand tensile test equipment of claim 1, wherein: the cross section of the cross beam (12) is in a trapezoid shape with a narrow top and a wide bottom, and the sliding block (21) is provided with a sliding groove matched with the cross beam (12).

3. The steel strand tensile test equipment of claim 2, wherein: the sliding block (21) and the longitudinal beam (2) are of an integrated structure.

4. The steel strand tensile test equipment of claim 3, wherein: the cross section of the longitudinal beam (2) is in a trapezoid shape with a narrow upper part and a wide lower part, and the sliding seat (22) is provided with a groove body matched with the longitudinal beam (2).

5. The steel strand tensile test equipment of claim 4, wherein: go up clamp (23) and include upper base body (231), upper base body (231) are fixed in through the screw slide (22), go up clamp (23) still include fixed arm lock (232) and last movable arm lock (233), go up movable arm lock (233) sliding connection in upper base body (231), go up fixed arm lock (232) with upper base body (231) formula structure as an organic whole, still be provided with on upper base body (231) lead screw (234), go up movable arm lock (233) be provided with go up lead screw (234) complex and go up the screw.

6. The steel strand tensile test equipment of claim 5, wherein: the scale mark is recessed into the guide column (33), and a paint layer is coated in the scale mark.

7. The steel strand tensile test equipment of claim 6, wherein: the number of the guide posts (33) is at least four.

8. The steel strand tensile test equipment of claim 7, wherein: the sliding frame (3) comprises a panel (34) and a frame body (35) arranged on the panel (34), the frame body (35) is arranged on one side, away from the lower clamp (32), of the panel (34), and the frame body (35) and the panel (34) are of an integrated structure.

9. The steel strand tensile test equipment of claim 8, wherein: keep away from support body (35) the one end of panel (34) is provided with plate body (36), driver (31) for set up in motor (311) of base (1), output shaft (312) of motor (311) are provided with the lead screw, plate body (36) be provided with lead screw complex screw.

10. The steel strand tensile test equipment of claim 9, wherein: the plate body (36) with support body (35) formula structure as an organic whole, plate body (36) with accommodation space (37) have between support body (35), some of lead screw extend to in accommodation space (37), motor (311) are fixed in through the screw base (1), output shaft (312) with lead screw formula structure as an organic whole.