CN117191599A - Bridge pavement anti-damage force test equipment - Google Patents
Bridge pavement anti-damage force test equipment Download PDFInfo
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- CN117191599A CN117191599A CN202311156355.5A CN202311156355A CN117191599A CN 117191599 A CN117191599 A CN 117191599A CN 202311156355 A CN202311156355 A CN 202311156355A CN 117191599 A CN117191599 A CN 117191599A
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000010008 shearing Methods 0.000 claims abstract description 21
- 238000004088 simulation Methods 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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Abstract
The invention relates to the technical field of bridge detection, and discloses bridge pavement anti-damage force test equipment, which comprises a support, wherein a U-shaped box is slidably arranged on the upper end surface of the support through a sliding part, a strength simulation test mechanism is arranged on the right part of an inner cavity of the U-shaped box, a shear test mechanism is arranged on the left part of the inner cavity of the U-shaped box, and the shear test mechanism comprises: the invention discloses a test device, which comprises a mounting plate fixedly connected to the upper cavity wall of a U-shaped box, a shearing assembly arranged in the front of the mounting plate, a bearing plate fixedly connected to the upper cavity wall of the U-shaped box and a deformation display unit arranged at the rear of the bearing plate.
Description
Technical Field
The invention relates to the technical field of bridge detection, in particular to bridge pavement anti-damage force test equipment.
Background
The bridge pavement bears the load of a running vehicle, the bridge pavement must have enough anti-damage capability to ensure the safe passing of a road, the anti-damage performance of the pavement is evaluated through a test, the possible problems can be found in advance, corresponding measures are taken to ensure the safety of the bridge, in the existing bridge pavement design and evaluation, the shear strength of a bridge pavement sample can be used as an important index for evaluating the anti-damage performance of the bridge pavement, and a higher shear strength generally indicates that the bridge pavement sample has better anti-damage performance under the action of the shearing force.
Before the bridge is constructed, a rectangular block-shaped sample is required to be made of the same material, strength and shear force detection are carried out on the sample, and the traditional shear strength testing equipment for the bridge can only detect the fixed shear strength in the bridge sample because the distance between the two upper pressing plates and the lower pressing plates is fixed and cannot be adjusted when the traditional shear strength testing equipment for the bridge is used for detecting, so that the detection result of each part in the bridge sample is single, and the accuracy of the test result is influenced; in addition, whether the sample is deformed is usually observed through visual inspection in the process of testing the shear force resistance of the bridge sample, but the tiny deformation of the sample can not be observed timely and intuitively in the mode, so that the accuracy of sample detection is further affected.
Disclosure of Invention
The invention provides bridge pavement anti-destructive power test equipment, which solves the technical problems that the existing bridge anti-destructive power test equipment can only detect a single section of long shearing force in a sample, deformation of the sample in the detection process can not be visually displayed, and the accuracy of a detection result is affected.
The invention provides bridge pavement anti-destructive power test equipment, which comprises a support, wherein the upper end surface of the support is slidably provided with a U-shaped box through a sliding part, the right part of the inner cavity of the U-shaped box is provided with a strength simulation test mechanism, the left part of the inner cavity of the U-shaped box is provided with a shearing test mechanism, the upper end surface of the support is provided with a clamping part, and the shearing test mechanism comprises: the mounting panel of fixed connection at the cavity wall behind the U-shaped box, set up at the anterior shear component of mounting panel, fixed connection at the loading board of cavity wall before the U-shaped box and install the deformation show unit at the loading board rear portion, deformation show unit includes: the device comprises a batten fixedly connected to the rear end face of a bearing plate through an electric telescopic push rod, a telescopic frame arranged at the rear part of the batten, a plurality of sliding boxes hinged to the rear part of the telescopic frame at equal intervals, a sliding column in the sliding box in a sliding mode, a C-shaped plate fixedly connected to the rear end of the sliding column, a rolling wheel rotatably connected to the rear part of the bearing plate through a rotating shaft, an arc dial fixedly connected to the rear part of the bearing plate, and an indicating needle fixedly connected to the outside of the rotating shaft and used for being matched with the arc dial, wherein a guy rope is wound outside the rolling wheel, the front end face of the C-shaped plate is fixedly connected with a strip-shaped wire frame, one end of the guy rope, far away from the rolling wheel, sequentially penetrates through the strip-shaped wire frame from left to right and is fixedly connected to the rear part of the bearing plate through a fixing rod, and the rear end face of the bearing plate is fixedly connected with a horizontal rope through a fixing block.
In one possible implementation manner, the shearing assembly comprises two sliding grooves which are rotationally symmetrically arranged and are formed in the front end face of the mounting plate, sliding rods are slidably connected in the sliding grooves and are externally slidably connected with sliding plates, a pressing plate is fixedly connected to the front end face of each sliding plate, a slat is fixedly connected to the inner portion of each sliding plate in a penetrating and sliding mode, two bidirectional electric telescopic rods are fixedly connected to opposite sides of each slat, and connecting blocks are fixedly connected between the middle portions of the bidirectional electric telescopic rods and the mounting plate.
In a possible implementation manner, the strength simulation test mechanism comprises a wheel fork fixedly connected to the upper cavity wall of the U-shaped box through a connecting rod, a turntable is rotationally connected to the lower portion of the wheel fork, a plurality of rectangular frames are fixedly connected to the circumference outer wall of the turntable at equal intervals, an L-shaped rod is fixedly connected to one side, close to the center of the turntable, of the rectangular frames, a screw is connected to the inner threads of the short sections of the L-shaped rod, one side, far away from the turntable, of the rectangular frames is fixedly connected with a wheel carrier through a connecting telescopic rod, connecting lugs are fixedly connected to the outer parts of the connecting telescopic rod, a through hole is formed in a wall plate, far away from one side, of the rectangular frames, of the screw, far away from the turntable, of the screw is rotationally connected with a pressure spring through a rotating block, and one end, far away from the screw, of the pressure spring is connected to the outer part of the connecting lugs through the through hole.
In a possible implementation manner, the sliding part comprises a sliding rail which is fixedly connected to the upper end face of the supporting table in a front-back symmetrical manner, a sliding seat is symmetrically and slidingly connected to the outer portion of the sliding rail, the U-shaped box is fixedly connected to the upper end face of the sliding seat, a folding plate is symmetrically and fixedly connected to the left side and the right side of the upper end face of the sliding rail, a positioning pin is fixedly connected to the inner portion of the transverse section of the folding plate in a sliding manner, a pressure spring is fixedly connected to the outer wall of the positioning pin and the upper end face of the folding plate together, a pin plate corresponding to the positioning pin is fixedly connected to one side, close to the folding plate, of the sliding seat, and a limiting hole corresponding to the positioning pin is formed in the upper end face of the pin plate.
In one possible implementation manner, the clamping part comprises a vertical seat which is fixedly connected to the upper end face of the supporting table in a bilateral symmetry manner, electric telescopic columns are fixedly connected to opposite sides of the vertical seat, a longitudinal plate is fixedly connected to one end of each electric telescopic column, which is far away from the vertical seat, and a plurality of opening-shaped clamping frames are fixedly connected to one side, which is far away from the electric telescopic columns, of each longitudinal plate in an equidistant manner.
In one possible implementation mode, a plurality of positioning scale grooves are formed in the outer portion of the ribbon board at equal intervals, a sliding ring is fixedly connected to the side portion of the sliding board, a sliding column is connected to the sliding ring in a sliding mode, a limiting spring is fixedly connected between the sliding ring and the sliding column, and a positioning strip matched with the positioning scale grooves is fixedly connected to one end, close to the ribbon board, of the sliding column.
In one possible implementation manner, a tension spring is fixedly connected to the outside of the winding wheel, one end, away from the winding wheel, of the tension spring is fixedly connected to the rear end face of the bearing plate through a bump, and an observation window corresponding to the bearing plate is embedded in the front portion of the U-shaped box.
From the above technical scheme, the invention has the following advantages:
according to the invention, the transverse distance between the pressing plates is adjusted through the combination of the strip plates, the positioning scale strips, the positioning strips and the sliding plates, so that shearing tests can be carried out on different section lengths in the sample, the test result is more accurate, and the test accuracy is improved.
According to the bridge sample deformation detection device, the plurality of C-shaped plates clamp the outside of the bridge sample, so that the C-shaped plates move up and down along with the deformed part of the sample in the test process, and drive the inhaul cable to move so as to display the movement amount on the offset angle of the indicating needle, the deformation degree of the sample at the position can be intuitively observed, and the deformed part of the sample can be intuitively displayed through the mutual matching of the horizontal cable and the inhaul cable, so that the accuracy of sample detection is improved.
According to the invention, the wheels with different radius sizes are arranged in the wheel frame, and the compression amount of the pressure spring is adjusted by rotating the screw rod, so that the downward strength of each wheel is different, and therefore, vehicles with different weights can be simulated to run on bridge samples, and the strength detection of the samples is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of bridge pavement anti-destructive power test equipment provided by the invention.
Fig. 2 is an enlarged schematic diagram of a portion a of fig. 1 according to the present invention.
Fig. 3 is a schematic cross-sectional view of the whole structure provided by the invention.
Fig. 4 is a schematic diagram of a connection structure of the strength simulation test mechanism, the shear test mechanism and the U-shaped box provided by the invention.
Fig. 5 is an enlarged schematic view of the structure of part B in fig. 4 according to the present invention.
Fig. 6 is a schematic diagram of a rear view angle structure of a deformation display unit provided by the invention.
Fig. 7 is a schematic view of a deformed unit part structure from a rear view.
Fig. 8 is a schematic structural diagram of a strength simulation test mechanism provided by the invention.
Wherein the above figures include the following reference numerals:
1. a supporting table; 2. a sliding part; 21. a slide rail; 22. a slide; 23. a positioning pin; 24. a pin plate; 25. a limiting hole; 3. a U-shaped box; 4. the intensity simulation test mechanism; 41. a fork; 42. a turntable; 43. a rectangular frame; 44. a screw; 45. connecting a telescopic rod; 46. a wheel carrier; 47. a pressure spring; 5. a shear test mechanism; 51. a mounting plate; 52. a shear assembly; 521. a chute; 522. a slide bar; 523. a sliding plate; 524. a pressing plate; 525. a slat; 526. a bi-directional electric telescopic rod; 53. a carrying plate; 54. a deformation display unit; 541. a slat; 542. a telescopic frame; 543. a slide box; 544. a spool; 545. a C-shaped plate; 546. a reel; 547. an arc dial; 548. an indicator needle; 549. a guy cable; 5410. a bar-shaped wire frame; 5411. a horizontal cable; 6. a clamping part; 61. a vertical seat; 62. an electric telescopic column; 63. a longitudinal plate; 64. an opening-shaped clamping frame; 7. positioning a scale groove; 8. a slip ring; 9. and (5) positioning strips.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 and 3, the present invention provides a technical solution: the utility model provides a bridge road surface anti-damage power test equipment, includes a supporting bench 1, and U-shaped box 3 is installed through sliding part 2 slidable mounting to supporting bench 1 up end, and intensity simulation test mechanism 4,U is installed on U-shaped box 3 inner chamber right part 3 inner chamber left part, and shearing test mechanism 5 is installed to supporting bench 1 up end, clamping part 6 is installed to supporting bench 1 up end.
Referring to fig. 3, in the embodiment, the clamping portion 6 includes a vertical seat 61 symmetrically and fixedly connected to an upper end surface of the support 1, electric telescopic columns 62 are fixedly connected to opposite sides of the vertical seat 61, a longitudinal plate 63 is fixedly connected to one end of the electric telescopic column 62 away from the vertical seat 61, and a plurality of opening-shaped clamping frames 64 are fixedly connected to one side of the longitudinal plate 63 away from the electric telescopic column 62 at equal intervals.
The rectangular block sample is placed between two transversely adjacent opening-shaped clamping frames 64, then the two longitudinal plates 63 are driven to move close to each other by controlling the electric telescopic column 62, and then the longitudinal plates 63 drive the transversely adjacent opening-shaped clamping frames 64 to move close to each other until the sample is abutted against the outer part of the sample to firmly clamp the sample.
Referring to fig. 1 and 2, in the embodiment, the sliding portion 2 includes a sliding rail 21 symmetrically and fixedly connected to an upper end surface of the support 1, a sliding seat 22 is symmetrically and slidingly connected to an outer portion of the sliding rail 21, a u-shaped box 3 is fixedly connected to an upper end surface of the sliding seat 22, a folded plate is symmetrically and horizontally fixedly connected to an upper end surface of the sliding rail 21, a positioning pin 23 is slidingly connected to an inner portion of a transverse section of the folded plate, a top spring is fixedly connected to an outer wall of the positioning pin 23 and an upper end surface of the folded plate together, a pin plate 24 corresponding to the positioning pin 23 is fixedly connected to a side of the sliding seat 22 close to the folded plate, and a limiting hole 25 corresponding to the positioning pin 23 is formed in an upper end surface of the pin plate 24.
Referring to fig. 4 and 8, the strength simulation test mechanism 4 includes a fork 41 fixedly connected to an upper cavity wall of the U-shaped box 3 through a connecting rod, a turntable 42 is rotatably connected to a lower portion of the fork 41, a plurality of rectangular frames 43 are fixedly connected to an outer wall of a circumference of the turntable 42 at equal intervals, an L-shaped rod is fixedly connected to one side, close to a center of the turntable 42, of the rectangular frames 43, a screw 44 is connected to an inner thread of a short section of the L-shaped rod, one side, far from the turntable 42, of the rectangular frames 43 is fixedly connected with a wheel frame 46 through a connecting telescopic rod 45, a connecting lug is fixedly connected to the outer portion of the connecting telescopic rod 45, a through hole is formed in a wall plate of one side, far from the turntable 42, of the rectangular frames 43 is rotatably connected with a pressure spring 47 through a rotating block, and one end, far from the screw 44, of the pressure spring 47 passes through the through hole and is fixedly connected to the outer portion of the connecting lug.
The sliding seat 22 is driven by the transverse sliding U-shaped box 3 to slide outside the sliding rail 21, when the sliding seat 22 slides to the leftmost end or the rightmost end of the sliding rail 21, the pin plate 24 is positioned under the positioning pin 23, at the moment, the positioning pin 23 is inserted into the limiting hole 25 to limit and lock the moving U-shaped box 3, when the U-shaped box 3 moves to the leftmost part of the sliding rail 21, the strength simulation test mechanism 4 is positioned right above a sample, different types of tires are mounted in the wheel frame 46 in advance, then the compression springs 47 are pressed by rotating the screw 44, the compression degree of the compression springs 47 in each rectangular frame 43 is different by adjusting the displacement of the screw 44, so that vehicles with different weights can be simulated to run on the sample, then the turntable 42 is driven to rotate by external driving equipment, and then the turntable 42 runs and rolls on the surface of the sample through the rectangular frame 43, the connecting telescopic rod 45 and the wheel frame 46, and whether the strength of the sample is qualified or not is detected by observing whether the sample has cracks or not after a certain time is detected.
Referring to fig. 3, 4 and 5, in the present embodiment, the shear test mechanism 5 includes: the mounting plate 51 fixedly connected to the rear cavity wall of the U-shaped box 3, the shearing assembly 52 arranged in the front of the mounting plate 51, the bearing plate 53 fixedly connected to the front cavity wall of the U-shaped box 3 and the deformation display unit 54 arranged at the rear of the bearing plate 53, the shearing assembly 52 comprises two sliding grooves 521 which are rotationally symmetrically arranged and arranged on the front end face of the mounting plate 51, sliding rods 522 are slidably connected inside the sliding grooves 521 through transverse sliding plates, sliding plates 523 are slidably connected outside the sliding rods 522, pressing plates 524 are fixedly connected to the front end faces of the sliding plates 523, laths 525 penetrate through the sliding plates 523, two laths 525 are fixedly connected with bidirectional electric telescopic rods 526 on opposite sides of the laths 525 together, connecting blocks are fixedly connected between the middle parts of the bidirectional electric telescopic rods 526 and the mounting plate 51, a plurality of positioning graduation grooves 7 are formed in equal intervals outside the laths 525, sliding rings 8 are fixedly connected to the side parts of the sliding plates, limiting springs are fixedly connected to the sliding rings 8 in the sliding rings, and locating strips 9 matched with the graduation grooves 7 are fixedly connected to one ends of the sliding rings 8, which are close to the laths.
When a sample needs to be subjected to shearing test, the U-shaped box 3 is moved to the rightmost part of the sliding rail 21, so that the shearing test mechanism 5 is positioned right above the sample, the sliding column is pulled upwards to drive the positioning strips 9 to separate from the positioning graduation grooves 7, then the transverse sliding plate 523 can move outside the strip 525, the positioning graduation grooves 7 are used for conveniently adjusting the movement amount, after the movement is completed, the sliding column is released, the sliding column is driven by the limiting spring to move and clamp the positioning strips 9 into the positioning graduation grooves 7 to limit the position of the pressing plate 524, so that the transverse distance between the two pressing plates 524 can be adjusted at will, different section lengths on the sample can be subjected to shearing test, the two strip 525 are controlled to be contracted and driven to move close to each other by the bidirectional electric telescopic rod 526, the strip 525 is then driven by the sliding plate 523 to move towards the sample until the strip 525 is pressed against the surface of the sample, and the sample is subjected to shearing test by the pressing plate 524, and the accuracy of a detection result is improved.
Referring to fig. 4, 6 and 7, in the present embodiment, the deformation illustrating unit 54 includes: the device comprises a lath 541 fixedly connected to the rear end face of a bearing plate 53 through an electric telescopic push rod, a telescopic frame 542 arranged at the rear part of the lath 541, a plurality of sliding boxes 543 which are equidistantly hinged to the rear part of the telescopic frame 542, sliding columns 544 which are connected to the inside of the sliding boxes 543, C-shaped plates 545 fixedly connected to the rear end of the sliding columns 544, rolling wheels 546 which are connected to the rear part of the bearing plate 53 through rotating shafts, arc-shaped dials 547 fixedly connected to the rear part of the bearing plate 53 through rotating shafts, indication needles 548 which are fixedly connected to the outside of the rotating shafts and used for being matched with the arc-shaped dials 547, guy ropes 549 are wound outside the rolling wheels 546, the front end faces of the C-shaped plates 545 are fixedly connected with strip-shaped wire frames 5410, one ends of the guy ropes 549 far away from the rolling wheels 546 sequentially penetrate through the strip-shaped wire frames 5410 from left to right and are fixedly connected to the rear part of the bearing plate 53 through fixing rods, the rear end faces of the bearing plate 53 are fixedly connected with horizontal wires 5411 through fixing blocks, one ends far away from the rolling wheels 546 are fixedly connected to the rear end faces of the bearing plate 53 through tension springs, one ends of the rolling wheels 546 are fixedly connected to the rear end faces of the bearing plate 53 through tension springs, observation windows corresponding to the bearing plates 53 are embedded in the front parts of the U-shaped boxes 3.
Before a shearing test is performed on a sample, a plate showing unit is mounted on the sample, the distance between adjacent sliding boxes 543 is adjusted through a telescopic frame 542, then an electric telescopic push rod is controlled to drive a lath 541 to move backwards, the lath 541 then drives a C-shaped plate 545 to move backwards until the lath is sleeved and props against the outside of the sample, the sample can drive the C-shaped plate 545 on a deformation part to move when deformation occurs in the shearing force testing process, the adjacent C-shaped plate 545 is caused to move vertically in a staggered manner, the C-shaped plate 545 in the offset can drive a strip-shaped wire frame 5410 to synchronously move, the strip-shaped wire frame 5410 then drives a guy 549 to move, the guy 549 moves to drive a reel 546 to rotate, the reel 546 drives an indicator needle 548 to rotate, the deformation degree of the sample can be obtained through observing the movement amount of the indicator needle 548 on an arc-shaped dial 547, and the place where the moving guy 549 and a horizontal cable 5411 are staggered can be obtained through an observation window.
During operation, firstly, a sample is placed into the clamping part 6 for clamping and limiting, then the position of the U-shaped box 3 is adjusted through the sliding part 2, when the U-shaped box 3 is positioned at the left part of the sliding part 2, the strength simulation test mechanism 4 is positioned right above the sample, then wheels with different diameter sizes are installed into the wheel frames 46, compression amounts of the pressure springs 47 corresponding to the wheel frames 46 are adjusted through the screw rods 44, vehicle types with different weights can be simulated to run and roll on the sample, so that the strength test is performed on the sample during use, when the U-shaped box 3 slides to the right part of the sliding part 2, the shearing test mechanism 5 is positioned right above the sample, the shearing test can be performed on different length sections of the sample through adjusting the transverse interval between the two pressing plates 524, the inhaul cable 549 moves when the sample deforms during the test, and the deformation amount and the deformation position of the sample can be visually observed through the observation indicating needle 548 and the horizontal cable 5411.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "first," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "first", "second" may include at least one such feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (7)
1. The utility model provides a bridge road surface vandalism resistance test equipment, includes a platform (1), its characterized in that: the upper end face of the support table (1) is slidably provided with a U-shaped box (3) through a sliding part (2), the right part of the inner cavity of the U-shaped box (3) is provided with a strength simulation test mechanism (4), the left part of the inner cavity of the U-shaped box (3) is provided with a shearing test mechanism (5), and the upper end face of the support table (1) is provided with a clamping part (6);
the shear test mechanism (5) comprises:
the device comprises a mounting plate (51) fixedly connected to the rear cavity wall of the U-shaped box (3), a shearing assembly (52) arranged at the front part of the mounting plate (51), a bearing plate (53) fixedly connected to the front cavity wall of the U-shaped box (3) and a deformation display unit (54) arranged at the rear part of the bearing plate (53);
the strain gauge unit (54) includes:
the device comprises a plate strip (541) fixedly connected to the rear end face of a bearing plate (53) through an electric telescopic push rod, a telescopic frame (542) arranged at the rear part of the plate strip (541), a plurality of sliding boxes (543) which are equidistantly hinged to the rear part of the telescopic frame (542), sliding columns (544) which are in sliding connection with the inside of the sliding boxes (543), C-shaped plates (545) fixedly connected to the rear ends of the sliding columns (544), rolling wheels (546) which are rotatably connected to the rear part of the bearing plate (53) through a rotating shaft, arc-shaped dials (547) fixedly connected to the rear part of the bearing plate (53), and indication needles (548) which are fixedly connected to the outside of the rotating shaft and are used for being matched with the arc-shaped dials (547);
the novel cable winding device is characterized in that a stay cable (549) is wound outside the winding wheel (546), the front end face of the C-shaped plate (545) is fixedly connected with a strip-shaped wire frame (5410), one end, far away from the winding wheel (546), of the stay cable (549) sequentially penetrates through the strip-shaped wire frame (5410) from left to right and is fixedly connected to the rear portion of the bearing plate (53) through a fixing rod, and the rear end face of the bearing plate (53) is fixedly connected with a horizontal cable (5411) through a fixing block.
2. The bridge pavement breaking resistance test device according to claim 1, wherein: the shearing assembly (52) comprises two sliding grooves (521) which are rotationally symmetrically arranged and are formed in the front end face of the mounting plate (51), sliding rods (522) are connected inside the sliding grooves (521) through transverse sliding plates in a sliding mode, sliding plates (523) are connected to the outer portions of the sliding rods (522) in a sliding mode, pressing plates (524) are fixedly connected to the front end face of the sliding plates (523), battens (525) are connected to the inner portions of the sliding plates (523) in a penetrating and sliding mode, two bidirectional electric telescopic rods (526) are fixedly connected to opposite sides of the battens (525) in a common mode, and connecting blocks are fixedly connected between the middle portions of the bidirectional electric telescopic rods (526) and the mounting plate (51).
3. The bridge pavement breaking resistance test device according to claim 1, wherein: the strength simulation test mechanism (4) comprises a wheel fork (41) fixedly connected to the upper cavity wall of the U-shaped box (3) through a connecting rod, a rotary table (42) is rotationally connected to the lower portion of the wheel fork (41), a plurality of rectangular frames (43) are fixedly connected to the circumference outer wall of the rotary table (42) at equal intervals, an L-shaped rod is fixedly connected to one side, close to the center of the rotary table (42), of the rectangular frames (43), a screw (44) is connected to one side, far away from the rotary table (42), of the rectangular frames (43), a wheel frame (46) is fixedly connected to one side, far away from the rotary table (42), of the rectangular frames (43), a through hole is formed in a side wall plate, far away from the rotary table (42), of the screw (44), a compression spring (47) is rotationally connected to one end, far away from the screw (44), of the compression spring (47), of the compression spring penetrates through the through hole, and is fixedly connected to the outside the connecting lug.
4. The bridge pavement breaking resistance test device according to claim 1, wherein: the sliding part (2) comprises a sliding rail (21) which is fixedly connected to the upper end face of the supporting table (1) in a front-back symmetrical mode, a sliding seat (22) is symmetrically and slidingly connected to the outer portion of the sliding rail (21), a U-shaped box (3) is fixedly connected to the upper end face of the sliding seat (22), a folding plate is symmetrically and fixedly connected to the upper end face of the sliding rail (21), a locating pin (23) is slidingly connected to the inner portion of the transverse section of the folding plate, a pressure spring (47) is fixedly connected to the outer wall of the locating pin (23) and the upper end face of the folding plate together, a pin plate (24) corresponding to the locating pin (23) is fixedly connected to one side, close to the folding plate, of the sliding seat (22), and a limiting hole (25) corresponding to the locating pin (23) is formed in the upper end face of the pin plate (24).
5. The bridge pavement breaking resistance test device according to claim 1, wherein: clamping part (6) are including bilateral symmetry fixed connection at perpendicular seat (61) of brace (1) up end, perpendicular equal fixedly connected with electric telescopic column (62) of seat (61) opposite side, electric telescopic column (62) keep away from the one end fixedly connected with longitudinal plate (63) of perpendicular seat (61), one side equidistance fixedly connected with a plurality of opening form clamp frame (64) of electric telescopic column (62) are kept away from to longitudinal plate (63).
6. The bridge pavement breaking resistance test device according to claim 2, wherein: a plurality of location scale groove (7) have been seted up to slat (525) outside equidistance, slide plate (523) lateral part fixedly connected with sliding ring (8), sliding ring (8) inside sliding connection has the slip post, and common fixedly connected with spacing spring between slip ring (8) and the slip post, the one end fixedly connected with that the slip post is close to slat (525) is used for with location scale groove (7) complex location strip (9).
7. The bridge pavement breaking resistance test device according to claim 1, wherein: the outside fixedly connected with extension spring of reel (546), the one end that the extension spring kept away from reel (546) passes through lug fixed connection at loading board (53) rear end face, the scarf joint in U-shaped box (3) front portion is provided with the observation window that corresponds with loading board (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311156355.5A CN117191599B (en) | 2023-09-08 | 2023-09-08 | Bridge pavement anti-damage force test equipment |
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| Application Number | Priority Date | Filing Date | Title |
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