CN215894273U - Fatigue test device for composite beam test piece of steel bridge deck pavement layer - Google Patents
Fatigue test device for composite beam test piece of steel bridge deck pavement layer Download PDFInfo
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- CN215894273U CN215894273U CN202121389110.3U CN202121389110U CN215894273U CN 215894273 U CN215894273 U CN 215894273U CN 202121389110 U CN202121389110 U CN 202121389110U CN 215894273 U CN215894273 U CN 215894273U
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Abstract
The utility model belongs to the technical field of steel bridge deck pavement detection, and particularly relates to a steel bridge deck pavement layer composite beam test piece fatigue test device which comprises an equipment main body and a test bed, wherein a test piece pressure head is arranged on the equipment main body, a clamping mechanism and a positioning support table are fixedly arranged on the test bed, a test piece body is movably placed on the positioning support table, and positioning pipes which are integrally cast and connected are equidistantly arranged at the bottom of the test piece body; through location brace table and fixture, can be quick carry out the centre gripping with the test piece body fixed, start driving motor and carry out clockwise rotation, the sliding sleeve can drive two splint and carry out the centre gripping to the test piece body fixed, when control driving motor carries out anticlockwise rotation, the sliding sleeve can drive two splint and deviate from the direction motion, can conveniently dismantle the test piece, the setting of spacing spout can be adjusted the fixture position, can fix a position the centre gripping to the test piece of different specifications.
Description
Technical Field
The utility model belongs to the technical field of steel bridge deck pavement detection, and particularly relates to a fatigue test device for a composite beam test piece of a steel bridge deck pavement layer.
Background
The steel bridge deck pavement is a composite structure consisting of a single layer or multiple layers of asphalt mixture and a steel bridge deck, each structural layer is combined into a whole by bonding materials, the pavement layer is always closely connected with the steel bridge deck under a normal working state and commonly bears and deforms, the pavement layer and the steel bridge deck are mutually influenced and restricted, the fatigue cracking damage under the action of repeated load is a main form of the diseases of the steel bridge deck pavement layer in China, and the fatigue property of the pavement layer materials is an important direction for the research of the road boundary in China.
SUMMERY OF THE UTILITY MODEL
The existing steel bridge deck pavement layer composite beam test piece fatigue test device can not position and clamp a test piece during testing, and the test accuracy is influenced by instability in the test process of the test piece. The utility model provides a fatigue test device for a test piece of a composite beam of a steel bridge deck pavement layer, which has the advantages of rapidly clamping and fixing the test piece, positioning and clamping the test pieces with different specifications, and conveniently disassembling the test piece and carrying out the next test operation.
The utility model provides the following technical scheme: a steel bridge deck pavement layer composite beam test piece fatigue test device comprises an equipment main body and a test bed, wherein a test piece pressure head is arranged on the equipment main body, a clamping mechanism and a positioning support platform are fixedly arranged on the test bed, a test piece body is movably arranged on the positioning support platform, positioning pipes which are integrally cast and connected are arranged at the bottom of the test piece body at equal intervals, positioning holes are symmetrically formed in the four corners of the top of the positioning support platform, the clamping mechanism is used for fixedly clamping the test piece body, the clamping mechanism comprises a clamping plate, a sliding block, a sliding sleeve, a first threaded rod, a second threaded rod, a connecting rod and a driving motor, the first threaded rod is fixedly connected with the second threaded rod through the connecting rod, the sliding sleeve is sleeved on the first threaded rod and the second threaded rod, a slot which is matched with the sliding block is formed in the bottom of the clamping plate, and the sliding block is inserted into an inner cavity of the slot, and the outer side of the clamping plate is fixedly connected with the sliding block through a fixing bolt.
Wherein, location brace table from left to right horizontal equidistance fixed connection be in the test bench top, the location brace table is "T" type structure, and quantity is provided with threely.
Wherein, two limiting sliding chutes are symmetrically formed in the top of the test bed.
The test piece body is formed by combining a steel beam and an asphalt layer positioned on the upper layer of the steel beam, positioning pipes connected in an integrated pouring mode are arranged at the bottom of the steel beam in an equidistant mode, and the positioning pipes correspond to the positioning holes in position.
Wherein, driving motor fixed mounting is in the test bench outside.
Wherein, a threaded rod passes through bearing fixed connection with No. two threaded rods and is in the test bench inner chamber, just spacing spout inner chamber is worn to locate by the slider.
And the output end of the driving motor is fixedly connected with one end of the second threaded rod.
And the direction of the threads on the first threaded rod is opposite to that of the threads on the second threaded rod.
The utility model has the beneficial effects that:
1. because the positioning support table is provided with the positioning hole, the bottom of the test piece body is provided with the positioning tube corresponding to the positioning hole, so that the test piece body can be positioned and placed on the positioning support table, the accuracy of the placement position of the test piece body can be effectively ensured, the accurate positioning is achieved, the clamping mechanism is arranged, the driving motor is started to rotate clockwise to drive the second threaded rod to rotate, the second threaded rod drives the first threaded rod to rotate through the connecting rod, the sliding sleeve on the first threaded rod and the second threaded rod can move in the opposite direction, the sliding sleeve can drive the two clamping plates to clamp and fix the test piece body, when the driving motor is controlled to rotate anticlockwise, the sliding sleeve on the first threaded rod and the second threaded rod can move in the opposite direction, the sliding sleeve can drive the two clamping plates to move in the opposite direction, and the clamping of the test piece body is finished, and then can conveniently dismantle the test piece, can be convenient for carry out next test operation, because the splint bottom is equipped with the slot, can dismantle splint from the slider, be convenient for to the change of splint.
2. The position of the clamping mechanism can be adjusted through the arrangement of the limiting sliding groove, and test pieces of different specifications can be positioned and clamped.
The parts of the device not involved are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic structural view of a test stand according to the present invention;
FIG. 3 is a schematic structural view of a specimen body according to the present invention;
FIG. 4 is a sectional view showing the structure of the test stand of the present invention.
In the figure: 1. an apparatus main body; 2. a test piece pressure head; 3. a test bed; 31. a limiting chute; 4. a clamping mechanism; 41. a splint; 411. a slot; 42. a slider; 43. a sliding sleeve; 44. a first threaded rod; 45. a second threaded rod; 46. a connecting rod; 47. a drive motor; 5. positioning the support table; 51. positioning holes; 6. a test piece body; 61. an asphalt layer; 62. a steel beam; 621. and (4) positioning the tube.
Detailed Description
Referring to fig. 1-4, the present invention provides the following technical solutions: a steel bridge deck pavement layer composite beam test piece fatigue test device comprises an equipment main body 1 and a test bed 3, wherein a test piece pressure head 2 is arranged on the equipment main body 1, a clamping mechanism 4 and a positioning support table 5 are fixedly arranged on the test bed 3, a test piece body 6 is movably arranged on the positioning support table 5, positioning pipes 621 which are integrally cast and connected are arranged at the bottom of the test piece body 6 at equal intervals, positioning holes 51 are symmetrically formed in the four corners of the top of the positioning support table 5, the clamping mechanism 4 is used for fixedly clamping the test piece body 6, the clamping mechanism 4 comprises a clamping plate 41, a sliding block 42, a sliding sleeve 43, a first threaded rod 44, a second threaded rod 45, a connecting rod 46 and a driving motor 47, the first threaded rod 44 is fixedly connected with the second threaded rod 45 through the connecting rod 46, the sliding sleeve 43 is sleeved on the first threaded rod 44 and the second threaded rod 45, and a slot 411 matched with the sliding block 42 is formed in the bottom of the clamping plate 41, the sliding block 42 is inserted into the inner cavity of the slot 411, and the outer side of the clamping plate 41 is fixedly connected with the sliding block 42 through a fixing bolt.
In this embodiment: the device comprises a device main body 1 and a test bed 3, wherein a test piece pressure head 2 is arranged on the device main body 1, a clamping mechanism 4 and a positioning support platform 5 are fixedly arranged on the test bed 3, a test piece body 6 is movably arranged on the positioning support platform 5, positioning pipes 621 which are integrally cast and connected are arranged at the bottom of the test piece body 6 at equal intervals, positioning holes 51 are symmetrically formed in the four corners of the top of the positioning support platform 5, the clamping mechanism 4 is used for fixedly clamping the test piece body 6, the clamping mechanism 4 comprises a clamping plate 41, a sliding block 42, a sliding sleeve 43, a first threaded rod 44, a second threaded rod 45, a connecting rod 46 and a driving motor 47, the first threaded rod 44 is fixedly connected with the second threaded rod 45 through the connecting rod 46, the sliding sleeve 43 is sleeved on the first threaded rod 44 and the second threaded rod 45, a slot 411 matched with the sliding block 42 is formed in the bottom of the clamping plate 41, and the sliding block 42 is inserted into the inner cavity of the slot 411, the outer side of the clamp plate 41 is fixedly connected with the sliding block 42 through a fixing bolt, the bottom of the test piece body 6 is provided with a positioning tube 621 corresponding to the clamp plate, so that the test piece body 6 can be positioned and placed on the positioning support platform 5, the accuracy of the placement position of the test piece body 6 can be effectively ensured, the clamping mechanism 4 is arranged, the driving motor 47 is started to rotate clockwise to drive the second threaded rod 45 to rotate, the second threaded rod 45 drives the first threaded rod 44 to rotate through the connecting rod 46, the sliding sleeves 43 on the first threaded rod 44 and the second threaded rod 45 can move in opposite directions, the sliding sleeves 43 can drive the two clamp plates 41 to clamp and fix the test piece body 6, when the driving motor 47 is controlled to rotate anticlockwise, the sliding sleeves 43 on the first threaded rod 44 and the second threaded rod 45 can move in opposite directions, and the sliding sleeves 43 can drive the two clamp plates 41 to move in opposite directions, the end is to the centre gripping of test piece body 6, and then can conveniently dismantle the test piece, can be convenient for carry out next test operation, can adjust fixture 4 position through setting up of spacing spout 31 simultaneously, can fix a position the centre gripping to the test piece of different specifications, because splint 41 bottom is equipped with slot 411, can dismantle splint 41 from slider 42, can be convenient for to the change of splint 41.
The positioning support tables 5 are horizontally and equidistantly fixedly connected to the top of the test bed 3 from left to right, the positioning support tables 5 are of T-shaped structures, and the number of the positioning support tables is three; the positioning support table 5 can position the test piece body 6 on the positioning support table 5, so that the accuracy of the placing position of the test piece body 6 can be effectively guaranteed, and accurate positioning is achieved.
The top of the test bed 3 is symmetrically provided with two limiting sliding chutes 31; through the setting of spacing spout 31, can adjust fixture 4 positions, can fix a position the centre gripping to the test piece of different specifications.
The test piece body 6 is formed by compounding a steel beam 62 and an asphalt layer 61 positioned on the upper layer of the steel beam 62, positioning pipes 621 which are integrally cast and connected are arranged at the bottom of the steel beam 62 at equal intervals, and the positions of the positioning pipes 621 and the positioning holes 51 correspond to each other; because the positioning hole 51 is arranged on the positioning support platform 5, the positioning tube 621 corresponding to the positioning hole is arranged at the bottom of the test piece body 6, so that the test piece body 6 can be positioned and placed on the positioning support platform 5.
The driving motor 47 is fixedly arranged on the outer side of the test bed 3; the driving motor 47 is started to drive the first threaded rod 44 and the second threaded rod 45 to rotate.
The first threaded rod 44 and the second threaded rod 45 are fixedly connected to the inner cavity of the test bed 3 through bearings, and the sliding block 42 penetrates through the inner cavity of the limiting sliding groove 31; through the setting of spacing spout 31, can adjust fixture 4 positions, can fix a position the centre gripping to the test piece of different specifications.
The output end of the driving motor 47 is fixedly connected with one end of the second threaded rod 45; start driving motor 47 and carry out clockwise rotation, can drive No. two threaded rods 45 and rotate, can drive two splint 41 and carry out the centre gripping to test piece body 6 fixedly.
The first threaded rod 44 and the second threaded rod 45 are opposite in thread direction; start driving motor 47 and carry out clockwise rotation, and then sliding sleeve 43 on threaded rod 44 and No. two threaded rods 45 can carry out relative direction and move, when control driving motor 47 carried out anticlockwise rotation, sliding sleeve 43 on threaded rod 44 and No. two threaded rods 45 can carry out and deviate from the direction motion.
The working principle and the using process of the utility model are as follows: because the positioning supporting table 5 is provided with the positioning hole 51, the bottom of the test piece body 6 is provided with the positioning tube 621 corresponding to the positioning hole, so that the test piece body 6 can be positioned and placed on the positioning supporting table 5, the accuracy of the placing position of the test piece body 6 can be effectively ensured, the accurate positioning is achieved, by arranging the clamping mechanism 4, the driving motor 47 is started to rotate clockwise to drive the second threaded rod 45 to rotate, the second threaded rod 45 drives the first threaded rod 44 to rotate through the connecting rod 46, the sliding sleeves 43 on the first threaded rod 44 and the second threaded rod 45 move in opposite directions, the sliding sleeves 43 can drive the two clamping plates 41 to clamp and fix the test piece body 6, after the test is finished, when the driving motor 47 is controlled to rotate anticlockwise, the sliding sleeves 43 on the first threaded rod 44 and the second threaded rod 45 move in opposite directions, and then the sliding sleeve 43 can drive two splint 41 to deviate from the direction motion, the end is to the centre gripping of test piece body 6, and then can conveniently dismantle the test piece, can be convenient for carry out next test operation, can adjust fixture 4 position through setting up of spacing spout 31 simultaneously, can fix a position the centre gripping to the test piece of different specifications, because splint 41 bottom is equipped with slot 411, can dismantle splint 41 from slider 42, can be convenient for to the change of splint 41.
Claims (8)
1. The utility model provides a steel bridge deck pavement layer composite beam test piece fatigue test device which characterized in that: comprises an equipment main body and a test bed, wherein a test piece pressure head is arranged on the equipment main body, a clamping mechanism and a positioning support platform are fixedly arranged on the test bed, and a test piece body is movably arranged on the positioning support platform, positioning pipes which are integrally cast and connected are arranged at the bottom of the test piece body at equal intervals, the four corners of the top of the positioning support platform are symmetrically provided with positioning holes, the clamping mechanism is used for fixedly clamping the test piece body, the clamping mechanism comprises a clamping plate, a sliding block, a sliding sleeve, a first threaded rod, a second threaded rod, a connecting rod and a driving motor, the first threaded rod is fixedly connected with the second threaded rod through a connecting rod, sliding sleeves are sleeved on the first threaded rod and the second threaded rod, the bottom of the clamping plate is provided with a slot matched with the sliding block, the sliding block is inserted into the inner cavity of the slot, and the outer side of the clamping plate is fixedly connected with the sliding block through a fixing bolt.
2. The fatigue test device for the composite beam test piece of the steel bridge deck pavement layer according to claim 1, is characterized in that: the location brace table is in from left to right horizontal equidistance fixed connection the test bench top, the location brace table is "T" type structure, and quantity is provided with three.
3. The fatigue test device for the composite beam test piece of the steel bridge deck pavement layer according to claim 1, is characterized in that: two limiting sliding grooves are symmetrically formed in the top of the test bed.
4. The fatigue test device for the composite beam test piece of the steel bridge deck pavement layer according to claim 1, is characterized in that: the test piece body is by the girder steel with be located the compound formation of pitch layer on girder steel upper strata, just girder steel bottom equidistance is equipped with the integral type and pours the registration arm of connection, just the registration arm corresponds each other with the position of locating hole.
5. The fatigue test device for the composite beam test piece of the steel bridge deck pavement layer according to claim 1, is characterized in that: the driving motor is fixedly installed on the outer side of the test bed.
6. The fatigue test device for the composite beam test piece of the steel bridge deck pavement layer as claimed in claim 3, is characterized in that: no. one threaded rod passes through bearing fixed connection with No. two threaded rods and is in the test bench inner chamber, just spacing spout inner chamber is worn to locate by the slider.
7. The fatigue test device for the composite beam test piece of the steel bridge deck pavement layer according to claim 1, is characterized in that: the output end of the driving motor is fixedly connected with one end of the second threaded rod.
8. The fatigue test device for the composite beam test piece of the steel bridge deck pavement layer according to claim 1, is characterized in that: the direction of the threads on the first threaded rod is opposite to that of the threads on the second threaded rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121389110.3U CN215894273U (en) | 2021-06-22 | 2021-06-22 | Fatigue test device for composite beam test piece of steel bridge deck pavement layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121389110.3U CN215894273U (en) | 2021-06-22 | 2021-06-22 | Fatigue test device for composite beam test piece of steel bridge deck pavement layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215894273U true CN215894273U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121389110.3U Active CN215894273U (en) | 2021-06-22 | 2021-06-22 | Fatigue test device for composite beam test piece of steel bridge deck pavement layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215894273U (en) |
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2021
- 2021-06-22 CN CN202121389110.3U patent/CN215894273U/en active Active
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