A kind of steel fiber drawing device in concrete
A drawing device and steel fiber technology, applied in the direction of measuring device, mechanical device, instrument, etc., can solve the problems of influence of test results, unstable clamping force, unreliable clamping, etc., to achieve convenient drawing operation, Firm and reliable clamping, increasing the maximum effect
Active Publication Date: 2021-02-02
JILIN JIANZHU UNIVERSITY
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Problems solved by technology
The traditional test device adopts manual screw clamping or winding steel wire to clamp and fix the steel fiber. For the steel fiber with high strength and high hardness, it is easy to be unreliable clamping, easy to be pinched and unable to be clamped during the drawing process. Winding and other problems; use bench vise to clamp and fix the test piece, the clamping force of the bench vise will affect the test results and the clamping force is unstable during the test process, which is not conducive to the test
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[0023]The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0024]ReferenceFigure 1-8, A steel fiber drawing device in concrete, comprising a base 1, a chassis 2, a frame, a test piece fixing device, and a drawing device. The case 2 is located on the top of the base 1, and the test piece fixing device is located on the top of the case 2. The drawing device is located directly above the test piece fixing device, and is characterized in that: the frame is composed of a beam 4 fixedly connected between the vertical support 3 and the top of the vertical support 3 fixedly connected to both sides of the base 1, and the beam 4 A hydraulic tension device 5 is installed on the bottom surface of the hydraulic tensio...
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The invention discloses a steel fiber drawing device in concrete. The device comprises a pedestal, an engine case, a rack, a test-piece fixing device and a drawing device, wherein the rack consists ofa vertical support and a cross beam, the undersurface of the cross beam is provided with a hydraulic pulling device, a clamp fixing device is connected on the output end of the bottom of the hydraulic pulling device, the drawing device comprises two clamping plates, the inner side surfaces of the clamping plates are respectively connected with aluminum plates, the test-piece fixing device comprises a fixed pedestal, a horizontal spacing vertical plate, a horizontal baffle plate and a vertical lifting standing plate, a test-piece is arranged on the fixed pedestal, and the upper part of steel fiber in the test-piece is clamped between the aluminum plates. According to the steel fiber drawing device, the aluminum plates with arc-shaped tooth opening structures are adopted, so that clamping is firm and reliable, the accuracy of drawing steel wire test force is increased, and the maximum value of drawing steel wire test force is promoted; clamping sizes of the test-piece fixing device canall be adjusted, the drawing operation is convenient, the data accuracy rate is high, and the efficiency of drawing tests is improved.
Description
Technical field[0001]The invention relates to the technical field of test equipment, in particular to a steel fiber drawing device in concrete.Background technique[0002]In the process of building construction operations, concrete reinforcement bars need to test the bonding ability of the interface between the steel fiber and concrete on the test pieces to test the quality of the concrete reinforcement structure and ensure the quality of the construction project. The traditional test device uses manual screw clamping or winding steel wire to clamp and fix the steel fiber. For high-strength and hard steel fibers, the clamping is easy to be unstable, easy to be clamped and unable to be clamped during the drawing process. Winding and other problems; if the test piece is clamped and fixed with a bench vise, the clamping force of the bench vise affects the test results and the clamping force is unstable during the test, which is not conducive to the test.Summary of the invention[0003]The ...
Claims
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IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 李妍董文洋郭丹峰王勃王淼
Owner JILIN JIANZHU UNIVERSITY