CN102156071A - Profile stretching fixture and horizontal profile stretching testing machine - Google Patents
Profile stretching fixture and horizontal profile stretching testing machine Download PDFInfo
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- CN102156071A CN102156071A CN 201110144585 CN201110144585A CN102156071A CN 102156071 A CN102156071 A CN 102156071A CN 201110144585 CN201110144585 CN 201110144585 CN 201110144585 A CN201110144585 A CN 201110144585A CN 102156071 A CN102156071 A CN 102156071A
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Abstract
The invention discloses a profile stretching fixture and a horizontal profile stretching testing machine. The profile stretching fixture comprises a support, wedge-shaped sliding plates and clamping blocks; the inner surfaces of two upright plates form an included angle of alpha which ranges from 13 degrees to 23 degrees; the inner surface of each wedge-shaped sliding plate is connected with each clamping block through a vertically arranged dovetail groove and dovetail strip matching structure; the inner surface of each clamping block is provided with a friction surface with meshy friction lines; and the width L of the friction surface ranges from 190 mm to 240 mm. Different clamping blocks are designed according to the characteristics of different profile steel to be matched with the profile steel. The structural design can ensure that the clamping blocks provide enough pull force to the profile during the profile stretching and can keep the profile from sliding and being locally damaged to affect the test. The horizontal profile stretching testing machine has a simple structure, light weight and low manufacturing and testing cost, is convenient to operate, can greatly reduce the labor quantity during the detection test, can save energy, can move and is environmental friendly and safe.
Description
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Technical field
The present invention relates to the technical field of a kind of and mining monoblock degree section bar checkout equipment, especially a kind of section bar stretching clamp and horizontal section bar cupping machine.
Background technology
In the material tensile test field, must reliable clamping sample, it is moving to prevent to skid, and could accurately ask for the technical parameters such as tensile strength, yield strength, extensibility, unrelieved stress, elastic modulus of material.Existing anchor clamps have following shortcoming:
For the field, colliery, the mechanical property of section bar is had relatively high expectations, and existing testing machine is difficult to reply, and existing testing machine can not be finished the detection fully to mining section bar because the design defect of itself can not be done rupture test substantially.
Summary of the invention
At the deficiencies in the prior art, the object of the present invention is to provide a kind of section bar stretching clamp and horizontal section bar cupping machine.
The present invention adopts following technical scheme to realize its purpose: a kind of section bar stretching clamp, contain support, wedge shape slide plate and grip block, described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of described grip block is provided with the rubbing surface with the rubbing surface of netted friction line or zigzag friction line, and two rubbing surfaces are parallel to each other, and the scope of rubbing surface width L is 190mm～240mm; Clamping has unequal angle between the rubbing surface of two grip blocks, pad is equipped with the rectangular parallelepiped liner plate of coupling in the right angle corner of unequal angle, the width of this rectangular parallelepiped liner plate is slightly larger than the minor face inside surface width of unequal angle, and two grip blocks are to satisfy the center of gravity of unequal angle and one thick one thin grip block of stressed axis coinciding.
A kind of section bar stretching clamp, contain support, wedge shape slide plate and grip block, described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of described grip block is provided with the rubbing surface of netted friction line or zigzag rubbing surface, and two rubbing surfaces are parallel to each other, and the scope of rubbing surface width L is 190mm～240mm; Clamping has unequal angle between the rubbing surface of two grip blocks, and pad is equipped with the rectangular parallelepiped liner plate of coupling in the right angle corner of unequal angle; Two grip block thickness are identical, increase between a side wedge block and the riser therein that the rigidity backing plate satisfies the unequal angle center of gravity and the axis heart overlaps.
A kind of section bar stretching clamp, contain support, wedge shape slide plate and grip block, described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of two grip blocks is the rubbing surface of two parallel netted or zigzag friction lines, the scope of rubbing surface width L is 190mm～240mm, clamping has joist steel or band steel between two grip blocks, fill up between the wing plates on two sides of joist steel during the clamping joist steel rectangular parallelepiped liner plate is housed, each liner plate width is slightly larger than a side wing width.
A kind of section bar stretching clamp, contain support, wedge shape slide plate and grip block, described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of two grip blocks has " V " font groove of symmetry, " V " font groove inside surface is provided with rubbing surface netted or zigzag friction line, the scope of rubbing surface width L is 190mm～240mm, clamping has steel pipe or round steel post between two " V " font grooves, during the clamping steel pipe, be set with the plug of coupling in the steel pipe.
A kind of section bar stretching clamp, contain support, wedge shape slide plate and grip block, described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of a grip block is the rubbing surface that has plane netted or zigzag friction line, the inside surface of another grip block has " V " font groove, " V " font inclined-plane is provided with rubbing surface netted or zigzag friction line, the scope of rubbing surface width L is 190mm～240mm, clamping has equal angle between two grip blocks, the drift angle coupling of this equal angle is inserted in described " V " font groove, pad is equipped with the equilateral triangle prism that mates with equal angle in the equal angle, and the another side of equilateral triangle prism contacts with the planar friction face; Increase between a side wedge block and the riser therein that the rigidity backing plate satisfies the unequal angle center of gravity and the axis heart overlaps.
The inside surface angle α of two risers, satisfied 15 °≤α≤20 °, and the length of rubbing surface width L is 230mm.
The bottom of described wedge block and/or grip block is provided with slide mechanism, and described slide mechanism is chute to be set and steel ball to be installed or roller in the bottom of wedge block and/or grip block.
A kind of horizontal section bar cupping machine, comprise pedestal, stretching clamp, propulsion system, fixedly stretching clamp that is positioned at the left side and the movable stretching clamp that is positioned at the right side are installed on the pedestal simultaneously, support is set and propulsion system are installed on the right side pedestal of movable stretching clamp, the left end of these propulsion system is provided with the bearing that is fixed on the pedestal, be connected by pressure transducer between propulsion system and this bearing, vertical fixing has the load top board on the right-hand member push rod of propulsion system, and the both sides of this load top board are connected with the both sides of travel(l)ing rest by the pull bar of symmetry; Described fixedly stretching clamp and movable stretching clamp comprise support respectively, wedge shape slide plate and grip block, its medium-height trestle comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of described grip block is provided with the rubbing surface of netted friction line or zigzag rubbing surface, and the scope of rubbing surface width L is 190mm～240mm; Propulsion system overlap with stressed axial line, and the belt center of gravity is positioned on the stressed axial line.
Described propulsion system are lifting jack or hydraulic cylinder or are cylinder.
Fixedly the bottom of the wedge block of stretching clamp and movable stretching clamp and/or grip block is provided with slide mechanism, and this slide mechanism is groove to be set and steel ball to be installed or roller in the bottom of wedge block and/or grip block.
The beneficial effect of technical scheme provided by the invention is:
1, the section bar stretching clamp can be realized the rupture test to mining section bar by the angle angle of two risers of appropriate design and the width of friction plate.13 °≤the α of inside surface angle of two risers≤23 °, and scope 190mm～240mm of rubbing surface width L, the netted friction line inside surface of grip block can provide maximum holding force and friction force to the whole width of section bar.Characteristics according to unequal angle and joist steel minor face and long limit, utilize two grip blocks unequal angle and joist steel not to be had the line length stretching by the mode that increases the rectangular parallelepiped cushion block with parallel rubbing surface, utilize the grip block and the plug of two bands " V " font rubbing surface to carry out tension test, utilize the grip block of band planar friction face and the grip block of band " V " font rubbing surface to carry out tension test by equal angle steel pipe.By experiment showed, that repeatedly this structural design can satisfy that grip block provides enough pulling force to keep it not slide to formation when stretching, the part that can guarantee section bar is not again damaged by pressure and is influenced the carrying out of test.
2, the bottom of the wedge shape slide plate at this strap clamp angle is equipped with rolling mechanism, can farthest reduce friction force between wedge shape slide plate and the base plate, thereby reduces the interference of friction force to test accuracy.
3, this horizontal section bar cupping machine promotes the load top board by propulsion system, utilize the two lateral balances pulling pull bar of load top board, and then drive mobile section bar stretching clamp, no longer design sliding rail, simplify the structure, and can avoid the sliding rail linearity bad or, improve the reliability of whole test machine because of being subjected to of the influence of factors such as force unbalance to test accuracy.
4, be used for supporting the hold-down support of sensor and propulsion system and described fixedly section bar stretching clamp can be separately fixed on separately the base plate in this horizontal section bar cupping machine, thereby amplification that can be unlimited is the distance between section bar stretching clamp and the mobile section bar stretching clamp fixedly, can detect the mining section bar of any length, thereby expand the detectability of this machine.But also behind the both ends horizontal centering, with the two ends fixed installation of puller system head and the tail, middle attachedly hold up tested indefinite length test specimen according to the vinylon carrying roller and carry out tension test, can so test, also can test with reference to this method to bridge pier etc. to building iron welding back quality examination.
5, no matter traditional tension tester is vertical or horizontal testing machine, all has following defective: machine all is the fixed installation formula, body weight is big, jaw is short, holding force is little, the finite space is little, cost of manufacture and experimentation cost are all very high.
Compare with traditional tension tester, this machine is simple in structure, and fuselage is light, and handiness only needs this machine is fixed on the ground, and a people just can finish the operation of entire test, can reduce the labor capacity that detects test significantly.Energy-saving and environmental protection, safe, removable, cost of manufacture and experimentation cost are all very low.
Description of drawings
Fig. 1 is the structural representation of section bar stretching clamp of the present invention;
Fig. 2 is one of A-A cross-sectional view of Fig. 1;
Fig. 3 is a grip block perspective view among Fig. 1;
Fig. 4 be Fig. 1 the A-A cross-sectional view two;
Fig. 5 be Fig. 1 the A-A cross-sectional view three;
Fig. 6 is a grip block perspective view among Fig. 5;
Fig. 7 is the Facad structure synoptic diagram of Fig. 6;
Fig. 8 is the side structure synoptic diagram of Fig. 6;
Fig. 9 be Fig. 1 the A-A cross-sectional view four;
Figure 10 be Fig. 1 the A-A cross-sectional view five;
Figure 11 is one of them grip block perspective view among Figure 10;
Figure 12 is the horizontal section bar cupping machine of a present invention structural representation;
Figure 13 is the C-C cross-sectional view of Figure 12;
Figure 14 is the B-B cross-sectional view of Figure 13.
Among the figure, label 1 is a riser, and 2 is the wedge shape slide plate, 3 is grip block, and 31 is coattail strip, and 32 is rubbing surface, 4 is pedestal, and 5 is pull bar, and 6 is propulsion system, 7 is the load top board, and 8 is sensor, and 9 is bearing, 10 mounting holes, 11 is otic placode (brace rod), 12 is brace rod, 13 is fixed base plate, 14 removable bottoms, and 15 is mattess, 16 is pre-embedded bolt, and 17 is the pressure transducer bearing, and 18 is the propulsion system support, 19 is (guiding) chute, and 20 is steel ball or roller, and 21 is fixture (bolt or welding are fixing), 22 is unequal angle, and 23 is the rectangular parallelepiped liner plate, and 24 is steel pipe, 25 is cylindrical plug, and 26 is joist steel, and 27 is equal angle, 28 is triangular prism, and 29 and 30 are respectively different " V " font rubbing surface of the degree of depth, and 31 is coattail strip, 32 is the planar friction face, and 33 is the rigidity backing plate.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail:
Embodiment one: referring to Fig. 1, and Fig. 2, Fig. 3.A kind of section bar stretching clamp, the outside surface of two riser 1, two risers 1 of vertical fixing does not limit but inside surface tilts and symmetry on base plate 13, and the angle that the inside surface of two risers 1 tilts is α, and 13 °≤α≤23 °.
The wedge shape slide plate 2 of two symmetries mates respectively and is fitted on two risers, 1 inside surface, thereby the outside surface angle of two wedge shape slide plates 2 also is α, and also satisfy 13 °≤α≤23 °.The inside surface of this two wedge shapes slide plate 2 is parallel to each other.
Dovetail groove and coattail strip 31 fit structures by vertical setting between the inside surface of each wedge shape slide plate 2 and the grip block 3 link together.
The inside surface of two grip blocks 3 is the rubbing surfaces 32 that have zigzag friction line, and the scope of rubbing surface 32 width L is 190mm～240mm.Clamping has unequal angle 22 between two grip blocks 3, and pad is equipped with rectangular parallelepiped liner plate 23 in unequal angle, and the width of this rectangular parallelepiped liner plate 23 is slightly larger than the minor face inside surface width of unequal angle.According to above inequilateral section bar, need to determine center of gravity, it is one thick one thin selecting grip block 3 during the test clamping for use, when guaranteeing to stretch, center of gravity is coincide with stressed axle center.Two grip block thickness sizes are selected on being decided by trial product.
The top that is fixed with brace rod 12(or vertical plates on both sides on the outside surface of vertical plates on both sides 1 respectively is fixed with web joint).
Present embodiment is by bolt or be weldingly fixed on the substrate of cupping machine, referring to label 21 with anchor clamps.Described wedge block 2 and the bottom be provided with slide mechanism.This slide mechanism is chute 19 to be set in the bottom of wedge block 2 and steel ball to be installed or roller 20.
Embodiment two: referring to Fig. 1, and Fig. 3, Fig. 4.Content and embodiment one are basic identical, and something in common does not repeat, and different is: the bottom of described wedge block 2 directly contacts with base plate 13 and frictional fit.At determining of inequilateral section bar center of gravity, adopt therein between the side wedge block 2 and riser 1 way of increase rigidity backing plate 33 to adjust the unequal angle center of gravity and the axis heart overlaps.
Embodiment three: referring to Fig. 1, and Fig. 2, Fig. 3.A kind of section bar stretching clamp, anchor clamps are identical with embodiment one, do not repeat, and different is, and the angle that the inside surface of two risers 1 tilts is α, and 15 °≤α≤20 °.Thereby the outside surface angle of two wedge shape slide plates 2 also is α, and 15 °≤α≤20 °.The scope of 31 face width degree L of rubbing is 230mm.
Embodiment four: accompanying drawing is not drawn.A kind of hard-wired section bar stretching clamp, anchor clamps are identical with embodiment one, do not repeat, and different is directly two risers 1 to be fixed on the substrate 4 of cupping machine.
Embodiment five: referring to Fig. 5, and Fig. 6, Fig. 7, Fig. 8.Content and embodiment one are basic identical, something in common does not repeat, different is: the inside surface of two grip blocks 3 has " V " font groove 29 of symmetry, " V " font groove 29 inside surfaces are provided with netted or jagged friction line, clamping has steel pipe 24 between two " V " font grooves 29, is set with the plug 25 of coupling in the steel pipe 24.
Present embodiment utilizes the rupture test situation of the stainless-steel tube of external diameter Φ 26mm and internal diameter Φ 21.6mm and the vertical testing machine of WE-100 (universal hydraulic testing machine) contrast as follows.
Experiment 1: according to the GB/T228-2002 test method, 1100mm is long, and external diameter is 26 mm, and internal diameter is two sections of the high-quality stainless-steel tube five equilibriums of 21.6mm, and disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 70.1KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 70.3KN.Pass through comparative illustration: same stainless-steel tube of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error amount, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Experiment 2: according to the GB/T228-2002 test method, 1200mm is long, and external diameter is 26 mm, and internal diameter is two sections of the high-quality stainless-steel tube five equilibriums of 21.6mm, and disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 70.2KN; It is disrumpent feelings upward to use the present embodiment anchor clamps to carry out at puller system of the present invention (embodiment ten), and the Fracture Force value is about 70.4KN.Pass through comparative illustration: same stainless-steel tube of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error amount, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Experiment 3: according to the GB/T228-2002 test method, 1000mm is long, and external diameter is 26 mm, and internal diameter is two sections of the high-quality stainless-steel tube five equilibriums of 21.6mm, and disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 70.2KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 70.3KN.Pass through comparative illustration: same stainless-steel tube of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error amount, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Embodiment six: accompanying drawing is not drawn, content and embodiment five are basic identical, something in common does not repeat, different is: steel pipe is changed to cylindrical steel carries out tension test, two sections of oval steel five equilibriums, anchor clamps and the testing machine of the present invention of embodiment five is as follows with the rupture test situation of the vertical testing machine of WE-100 (universal hydraulic testing machine) contrast in conjunction with the back.
Experiment 1: according to the GB/T228-2002 test method that 1400mm is long, diameter is two sections of the 45# steel five equilibriums of 20 mm.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 230KN; It is disrumpent feelings upward to use the present embodiment anchor clamps to carry out at puller system of the present invention (embodiment ten), and the Fracture Force value is about 232KN.Pass through comparative illustration: same steel pipe of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error range, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Experiment 2: according to the GB/T228-2002 test method that 1500mm is long, diameter is two sections of the 45# steel five equilibriums of 20 mm.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 229KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 230KN.Pass through comparative illustration: same steel pipe of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error range, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Experiment 3: according to the GB/T228-2002 test method that 1400mm is long, diameter is two sections of the 45# steel five equilibriums of 20 mm.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 231KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 231KN.Pass through comparative illustration: same steel pipe of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error range, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Embodiment seven: referring to Fig. 9.Content and embodiment one are basic identical, something in common does not repeat, different is: the inside surface of two grip blocks 3 is two parallel rubbing surfaces, clamping has joist steel 26 between two grip blocks 3, and pad is equipped with rectangular parallelepiped liner plate 23 between the wing plates on two sides of joist steel 26, and each liner plate 23 width is slightly larger than a side wing width.
Embodiment eight: accompanying drawing is not drawn, content and embodiment seven are basic identical, something in common does not repeat, and different is: anchor clamps and the testing machine of the present invention (embodiment ten) of embodiment seven is as follows with the rupture test situation of the vertical testing machine of WE-100 (universal hydraulic testing machine) contrast carrying out band steel in conjunction with the back.
Experiment 1: according to the GB/T228-2002 test method, select for use long * wide * thickly be the 45# steel of 1200mm * 80mm * 10mm, two sections of five equilibriums.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 365KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 367KN.Pass through comparative illustration: same steel pipe of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error range, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Experiment 2: according to the GB/T228-2002 test method, according to the GB/T228-2002 test method, select for use long * wide * thickly be the 45# steel of 1000mm * 80mm * 10mm, two sections of five equilibriums.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 368KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 369KN.Pass through comparative illustration: same steel pipe of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error range, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Experiment 3: according to the GB/T228-2002 test method, according to the GB/T228-2002 test method, select for use long * wide * thickly be the 45# steel of 1100mm * 80mm * 10mm, two sections of five equilibriums.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 231KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 231KN.Pass through comparative illustration: same steel pipe of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error range, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Embodiment nine: referring to Figure 10.Content and embodiment one are basic identical, something in common does not repeat, different is: the inside surface of a grip block 3 is a planar friction face 32, it is more shallow that the inside surface of another grip block 3 has " V " font groove 30(degree of depth), clamping has equal angle 27 between two grip blocks, the drift angle coupling of this equal angle 27 is inserted in described " V " font groove 30, pad is equipped with the equilateral triangle prism 28 that mates with equal angle in the equal angle 27, and the another side of equilateral triangle prism 28 contacts with the planar friction face.Increase between a side wedge block 2 and the riser 1 therein that rigidity backing plate 33 satisfies the unequal angle center of gravity and the axis heart overlaps.
Utilize the rupture test situation of the vertical testing machine of present embodiment and WE-100 (universal hydraulic testing machine) contrast as follows.
Experiment 1:, select L30mm * 30mm * δ 3 common A3 equal angles (nonstandard) for use, two sections of length 840mm five equilibriums according to the GB/T228-2002 test method.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 40.1KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 40.2KN.Pass through comparative illustration: same stainless-steel tube of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error amount, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Experiment 2:, select L30mm * 30mm * δ 3 common A3 equal angles (nonstandard) for use, two sections of length 860mm five equilibriums according to the GB/T228-2002 test method.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 40.0KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 40.2KN.Pass through comparative illustration: same stainless-steel tube of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error amount, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Experiment 3:, select L30mm * 30mm * δ 3 common A3 equal angles (nonstandard) for use, two sections of length 820mm five equilibriums according to the GB/T228-2002 test method.Disrumpent feelings on the vertical testing machine of WE-100, the Fracture Force value is 40.2KN; It is disrumpent feelings to use the present embodiment anchor clamps to carry out on puller system of the present invention, and the Fracture Force value is about 40.3KN.Pass through comparative illustration: same stainless-steel tube of a., cut and to do two sections, in vertical testing machine of WE-100T and homemade machine drawing for sleeping in, to carry out disrumpent feelingsly respectively, testing result is close, does not exceed 1% error amount, prove that the self-control machine drawing detection data that crouch are credible.B. at tension tester, GB/T228-2002 standard code error is ± 1%, and precision is the I level.
Embodiment ten: referring to Fig. 1, Fig. 2, Fig. 3, Figure 12, Figure 13, Figure 14.Content and embodiment one are basic identical, and something in common does not repeat, and different is: a kind of horizontal section bar cupping machine, be embedded with bolt 16 in the reinforced concrete ground 15, and bar shaped pedestal 4 is fixed on the pre-embedded bolt 16.Fixedly stretching clamp that is positioned at the left side and the movable stretching clamp that is positioned at the right side are installed on the pedestal 16 simultaneously, support 18 is set and propulsion system 6 are installed on the right side pedestal 4 of movable stretching clamp, these propulsion system are lifting jack or hydraulic cylinder or are cylinder.
The left end of these propulsion system 6 is provided with bearing 9 and the bearing 17 that is fixed on the pedestal 4, is installed with pressure transducer 8 on the bearing 17.The left end of propulsion system 6 is connected with pressure transducer 8, and the left end roof pressure of pressure transducer 8 is on bearing 9.
Vertical fixing has load top board 7 on the right-hand member push rod of propulsion system 6, and the both sides of this load top board 7 are provided with mounting hole respectively.Travel(l)ing rest both sides otic placodes (brace rod) 11 are provided with mounting hole 10, the left end of monosymmetric pull bar 5 is fixedly mounted in this mounting hole 10, the right-hand member of two lateral bracing struts 5 is provided with thread segment and inserts respectively in the mounting hole 10 of load top board 7, and two lateral bracing struts 5 stretch out the outer part of load roof hole the adjusting nut is installed.
The outside surface of two riser 1, two risers 1 of vertical fixing does not limit but inside surface tilts and symmetry on base plate, and the angle that the inside surface of two risers 1 tilts is α, and 13 °≤α≤23 °.The wedge shape slide plate 2 of two symmetries mates respectively and is fitted on two risers, 1 inside surface, thereby the outside surface angle of two wedge shape slide plates 2 also is α, and 13 °≤α≤23 °.The inside surface of this two wedge shapes slide plate 2 is parallel to each other.Dovetail groove and coattail strip 31 fit structures by vertical setting between the inside surface of each wedge shape slide plate 2 and the grip block 3 link together.The inside surface of described grip block 3 is the rubbing surfaces 32 that have netted friction line, and the scope of rubbing surface 32 width L is 190mm～240mm.
The top that is fixed with brace rod 12(or vertical plates on both sides on the outside surface of vertical plates on both sides 1 respectively is fixed with web joint).Described propulsion system, pressure transducer, fixedly the center line of section bar stretching clamp and mobile section bar stretching clamp is positioned on the same axis, and described pull bar is two both sides that are symmetrically distributed in above-mentioned axis.The bottom of described wedge block 2 is provided with slide mechanism.This slide mechanism is chute 19 to be set in the bottom of wedge block and steel ball to be installed or roller 20.
Claims (10)
1. section bar stretching clamp, contain support, wedge shape slide plate and grip block, it is characterized in that: described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of described grip block is provided with the rubbing surface with the rubbing surface of netted friction line or zigzag friction line, and two rubbing surfaces are parallel to each other, and the scope of rubbing surface width L is 190mm～240mm; Clamping has unequal angle between the rubbing surface of two grip blocks, pad is equipped with the rectangular parallelepiped liner plate of coupling in the right angle corner of unequal angle, the width of this rectangular parallelepiped liner plate is slightly larger than the minor face inside surface width of unequal angle, and two grip blocks are to satisfy the center of gravity of unequal angle and one thick one thin grip block of stressed axis coinciding.
2. section bar stretching clamp, contain support, wedge shape slide plate and grip block, it is characterized in that: described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of described grip block is provided with the rubbing surface of netted friction line or zigzag rubbing surface, and two rubbing surfaces are parallel to each other, and the scope of rubbing surface width L is 190mm～240mm; Clamping has unequal angle between the rubbing surface of two grip blocks, and pad is equipped with the rectangular parallelepiped liner plate of coupling in the right angle corner of unequal angle; Two grip block thickness are identical, increase between a side wedge block and the riser therein that the rigidity backing plate satisfies the unequal angle center of gravity and the axis heart overlaps.
3. section bar stretching clamp, contain support, wedge shape slide plate and grip block, it is characterized in that: described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of two grip blocks is the rubbing surface of two parallel netted or zigzag friction lines, the scope of rubbing surface width L is 190mm～240mm, clamping has joist steel or band steel between two grip blocks, fill up between the wing plates on two sides of joist steel during the clamping joist steel rectangular parallelepiped liner plate is housed, each liner plate width is slightly larger than a side wing width.
4. section bar stretching clamp, contain support, wedge shape slide plate and grip block, it is characterized in that: described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of two grip blocks has " V " font groove of symmetry, " V " font groove inside surface is provided with rubbing surface netted or zigzag friction line, the scope of rubbing surface width L is 190mm～240mm, clamping has steel pipe or round steel post between two " V " font grooves, during the clamping steel pipe, be set with the plug of coupling in the steel pipe.
5. section bar stretching clamp, contain support, wedge shape slide plate and grip block, it is characterized in that: described support comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of a grip block is the rubbing surface that has plane netted or zigzag friction line, the inside surface of another grip block has " V " font groove, " V " font inclined-plane is provided with rubbing surface netted or zigzag friction line, the scope of rubbing surface width L is 190mm～240mm, clamping has equal angle between two grip blocks, the drift angle coupling of this equal angle is inserted in described " V " font groove, pad is equipped with the equilateral triangle prism that mates with equal angle in the equal angle, and the another side of equilateral triangle prism contacts with the planar friction face; Increase between a side wedge block and the riser therein that the rigidity backing plate satisfies the unequal angle center of gravity and the axis heart overlaps.
6. according to the described whole width section bar stretching clamp of each claim of claim 1-5, it is characterized in that: the inside surface angle α of two risers, satisfied 15 °≤α≤20 °, and the length of rubbing surface width L is 230mm.
7. according to claim 1 or 3 or 4 described section bar stretching clamps, it is characterized in that: the bottom of described wedge block and/or grip block is provided with slide mechanism, and described slide mechanism is chute to be set and steel ball to be installed or roller in the bottom of wedge block and/or grip block.
8. horizontal section bar cupping machine, comprise pedestal, stretching clamp, propulsion system, it is characterized in that: fixedly stretching clamp that is positioned at the left side and the movable stretching clamp that is positioned at the right side are installed on the pedestal simultaneously, support is set and propulsion system are installed on the right side pedestal of movable stretching clamp, the left end of these propulsion system is provided with the bearing that is fixed on the pedestal, be connected by pressure transducer between propulsion system and this bearing, vertical fixing has the load top board on the right-hand member push rod of propulsion system, and the both sides of this load top board are connected with the both sides of travel(l)ing rest by the pull bar of symmetry; Described fixedly stretching clamp and movable stretching clamp comprise support respectively, wedge shape slide plate and grip block, its medium-height trestle comprises two risers that are vertically fixed on the base plate, the inside surface angle of two risers is α, and 13 °≤α≤23 °, the wedge shape slide plate of two symmetries mates respectively and is fitted on the two riser inside surfaces, and the inside surface of this two wedge shapes slide plate is parallel to each other; Dovetail groove and coattail strip fit structure by vertical setting between the inside surface of each wedge shape slide plate and the grip block link together; The inside surface of described grip block is provided with the rubbing surface of netted friction line or zigzag rubbing surface, and the scope of rubbing surface width L is 190mm～240mm; Propulsion system overlap with stressed axial line, and the belt center of gravity is positioned on the stressed axial line.
9. horizontal section bar cupping machine according to claim 8 is characterized in that: described propulsion system are lifting jack or hydraulic cylinder or are cylinder.
10. horizontal section bar cupping machine according to claim 8, it is characterized in that: fixedly the bottom of the wedge block of stretching clamp and movable stretching clamp and/or grip block is provided with slide mechanism, and this slide mechanism is groove to be set and steel ball to be installed or roller in the bottom of wedge block and/or grip block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110144585 CN102156071B (en) | 2011-05-31 | 2011-05-31 | Profile stretching fixture and horizontal profile stretching testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110144585 CN102156071B (en) | 2011-05-31 | 2011-05-31 | Profile stretching fixture and horizontal profile stretching testing machine |
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| Publication Number | Publication Date |
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| CN102156071A true CN102156071A (en) | 2011-08-17 |
| CN102156071B CN102156071B (en) | 2012-12-26 |
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| CN 201110144585 Expired - Fee Related CN102156071B (en) | 2011-05-31 | 2011-05-31 | Profile stretching fixture and horizontal profile stretching testing machine |
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| CN103018045A (en) * | 2012-11-23 | 2013-04-03 | 宁波新大地轴承有限公司 | Device for testing service life of bearing |
| CN103134730A (en) * | 2011-12-05 | 2013-06-05 | 万向钱潮（上海）汽车系统有限公司 | Wiring harness stretch performance detection device |
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