CN219870274U - Special test bench of highway bridge telescoping device - Google Patents
Special test bench of highway bridge telescoping device Download PDFInfo
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- CN219870274U CN219870274U CN202322488876.2U CN202322488876U CN219870274U CN 219870274 U CN219870274 U CN 219870274U CN 202322488876 U CN202322488876 U CN 202322488876U CN 219870274 U CN219870274 U CN 219870274U
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- highway bridge
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a special test bed for a highway bridge expansion device, which belongs to the technical field of bridge expansion device tests and comprises a shell, wherein a hollow groove is formed in the top of the shell, a pair of fixing plates are arranged in the hollow groove, an expansion device body is arranged between the tops of the two fixing plates, a fixing mechanism is arranged at the top of each fixing plate, a supporting plate is arranged at the bottom of each fixing plate, the supporting plate is in sliding connection with the bottom wall of the hollow groove, a pair of round rods are fixedly connected to the top of each supporting plate, a pair of sliding grooves are formed in the bottom of each fixing plate, and the round rods are in sliding connection with the sliding grooves; this special test bench of highway bridge telescoping device pushes down the telescoping device body from the top through setting up the briquetting, has solved current special test bench of highway bridge telescoping device and mostly is inconvenient for detecting the stress intensity on bridge telescoping device perpendicular to bridge axis direction, and the testing result is not comprehensive enough, problem that application scope is less.
Description
Technical Field
The utility model belongs to the technical field of bridge expansion device tests, and particularly relates to a special test bed for a highway bridge expansion device.
Background
The bridge expansion device is an expansion device which is arranged between two beam ends, between a beam end and a bridge abutment or at the hinge position of a bridge so as to meet the requirement of bridge deck deformation, and can freely expand and contract in two directions parallel to and perpendicular to the axis of the bridge, so that the bridge expansion device is firm and reliable, and after the highway bridge expansion device is produced, a special test bed is required to be used for detecting the strength of the highway bridge expansion device.
The special test bed for the highway bridge expansion device comprises a bridge expansion device body, a test cabin, a base and a servo motor, wherein the bridge expansion device body is arranged in the test cabin, the base is welded at the bottom end of the test cabin, and the servo motor is arranged in the base; this scheme can drive two sets of supporting seats through a set of servo motor and remove simultaneously, has reduced the required energy consumption of detection, but because bridge telescoping device all need detect in parallel and perpendicular to bridge axis two ascending atress intensity to guarantee that it is firm reliable, and this scheme is inconvenient to detect bridge telescoping device perpendicular to bridge axis ascending atress intensity, leads to the testing result not comprehensive enough, application scope is less.
Therefore, we propose a special test stand for a highway bridge expansion device to solve the problems.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, the stress intensity of a bridge expansion device in the direction perpendicular to the axis of a bridge is inconvenient to detect, so that the detection result is not comprehensive enough and the application range is small.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a special test bench of public road bridge roof beam telescoping device, includes the casing, the hollow has been seted up at the casing top, be provided with a pair of fixed plate in the hollow, two be provided with the telescoping device body between the fixed plate top, the fixed plate top is provided with fixed establishment, the fixed plate bottom is provided with the backup pad, backup pad and hollow diapire sliding connection, backup pad top fixedly connected with a pair of round bar, a pair of spout has been seted up to the fixed plate bottom, round bar and spout sliding connection, the peripheral cover of round bar is equipped with the spring, spring one end and fixed plate bottom fixed connection, the spring other end and backup pad top fixed connection, be provided with the telescoping mechanism that is used for driving two fixed plates and keep away from each other or be close to each other in the hollow, the casing top is provided with slider and shifter, slider bottom fixedly connected with first hydraulic stem, first hydraulic stem bottom is provided with a pair of briquetting.
Preferably, the moving mechanism comprises a pair of supporting frames, the pair of supporting frames are respectively and fixedly arranged at the tops of two ends of the shell, a threaded rod and a long rod are rotatably connected between the two supporting frames, the threaded rod penetrates through one side of the sliding block and is in threaded connection with the sliding block, and the long rod penetrates through the other side of the sliding block and is in sliding connection with the sliding block.
Preferably, one end of one of the supporting frames is fixedly connected with a motor, and an output shaft of the motor penetrates through the supporting frames and is coaxially connected with one end of the threaded rod.
Preferably, the telescopic link bottom fixedly connected with fixed block in the first hydraulic stem, the briquetting is cylindric, two coaxial coupling has the pivot between the briquetting, the pivot passes the fixed block and rotates with the fixed block and be connected.
Preferably, the fixing mechanism comprises a plurality of bolts, the bottoms of the bolts are fixedly connected with the tops of the two fixing plates respectively, and the tops of the bolts penetrate through the telescopic device body and are in threaded connection with nuts.
Preferably, the top of the telescopic device body is provided with a plurality of circular grooves, the top of the bolt extends into the circular grooves, the outer diameter of the nut is smaller than the diameter of the circular grooves, and the top of the nut is flush with the top of the telescopic device body.
Preferably, the telescopic mechanism comprises a pair of second hydraulic rods, one ends of the two second hydraulic rods, which are opposite, are fixedly connected with the inner walls of the two ends of the empty slot respectively, and one ends of the telescopic rods inside the two second hydraulic rods are fixedly connected with one ends of the two supporting plates, which are opposite, respectively.
The utility model has the technical effects that: the device is through slider and casing and the briquetting that set up, during the detection, fixed establishment is fixed telescoping device body at the fixed plate top, make telescoping device work, can detect telescoping device body horizontal direction's atress intensity, make mobile mechanism and first hydraulic stem work, promote two briquetting and push down the telescoping device body, through spring and the round bar that set up, make the fixed plate top laminate telescoping device body bottom all the time, thereby be convenient for detect the atress intensity on the vertical direction of telescoping device body, this device can be convenient for detect the atress intensity of bridge telescoping device in two directions of parallel and perpendicular to bridge axis, and through the briquetting that sets up, make this device can also simulate when the car passes telescoping device body top, the testing result is comparatively comprehensive, application scope is wider.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a housing structure of the present utility model;
FIG. 3 is a schematic view of the slider and threaded rod of the present utility model with the long rod structure disassembled;
FIG. 4 is a schematic cross-sectional view of the body of the telescopic device of the present utility model;
fig. 5 is a schematic cross-sectional view of a fixing plate according to the present utility model.
In the figure: 1. a housing; 2. a hollow groove; 3. a fixing plate; 4. a telescoping device body; 5. a support plate; 6. a round bar; 7. a chute; 8. a spring; 9. a slide block; 10. a first hydraulic lever; 11. briquetting; 12. a support frame; 13. a threaded rod; 14. a long rod; 15. a motor; 16. a fixed block; 17. a rotating shaft; 18. a bolt; 19. a nut; 20. a circular groove; 21. and a second hydraulic rod.
Detailed Description
Like fig. 1, fig. 2 and fig. 5, a special test bench of highway bridge telescoping device, including casing 1, the empty slot 2 has been seted up at casing 1 top, be provided with a pair of fixed plate 3 in the empty slot 2, be provided with telescoping device body 4 between two fixed plate 3 tops, fixed plate 3 top is provided with fixed establishment, fixed plate 3 bottom is provided with backup pad 5, backup pad 5 and empty slot 2 diapire sliding connection, backup pad 5 top fixedly connected with a pair of round bar 6, a pair of spout 7 has been seted up to fixed plate 3 bottom, round bar 6 and spout 7 sliding connection, round bar 6 peripheral cover is equipped with spring 8, spring 8 one end and fixed plate 3 bottom fixed connection, the spring 8 other end and backup pad 5 top fixed connection, its main aim at: make fixed plate 3 can reciprocate to make it when the deformation of telescoping device body 4 production vertical direction, fixed plate 3 laminate with telescoping device body 4 bottom all the time, be provided with in the empty slot 2 and be used for driving the telescopic machanism that two fixed plates 3 kept away from each other or are close to, casing 1 top is provided with slider 9 and moving mechanism, slider 9 bottom fixedly connected with first hydraulic stem 10, first hydraulic stem 10 bottom is provided with a pair of briquetting 11, its main aim at: the telescoping device body 4 is pressed down to detect the force strength in the vertical direction thereof.
As shown in fig. 2, the moving mechanism includes a pair of supporting frames 12, the pair of supporting frames 12 are respectively and fixedly arranged at the top parts of two ends of the casing 1, a threaded rod 13 and a long rod 14 are rotatably connected between the two supporting frames 12, the threaded rod 13 passes through one side of the sliding block 9 and is in threaded connection with the sliding block 9, the long rod 14 passes through the other side of the sliding block 9 and is in sliding connection with the sliding block 9, the threaded rod 13 rotates, the sliding block 9 can slide between the two supporting frames 12 through the threaded transmission between the threaded rod 13 and the sliding block 9, two sides of the sliding block 9 slide at the peripheries of the threaded rod 13 and the long rod 14 respectively, and the pressing block 11 is driven to press down different positions of the telescopic device body 4, so that the strength of the telescopic device body 4 when stressed at different positions is detected.
As shown in fig. 3, in order to rotate the threaded rod 13, one end of one support frame 12 is fixedly connected with a motor 15, and an output shaft of the motor 15 passes through the support frame 12 and is coaxially connected with one end of the threaded rod 13, so that the motor 15 is electrified to work, and the output shaft drives the threaded rod 13 to rotate.
As shown in fig. 3, considering that the pressing block 11 is required to simulate the stressed state of the telescopic device body 4 when an automobile drives over the top of the telescopic device body 4, the bottom of the telescopic rod in the first hydraulic rod 10 is fixedly connected with the fixed block 16, the pressing block 11 is cylindrical, the rotating shafts 17 are coaxially connected between the two pressing blocks 11, the rotating shafts 17 penetrate through the fixed block 16 and are rotationally connected with the fixed block 16, when the sliding block 9 drives the pressing block 11 to move, the pressing block 11 rotates around the rotating shafts 17 under the action of friction force, the bottom of the pressing block 11 is attached to the top of the telescopic device body 4, and the pressing block moves from one end to the other end of the telescopic device body 4, so that the stressed state of the telescopic device body 4 is simulated when the automobile drives over the top of the telescopic device body 4.
As shown in fig. 4, the fixing mechanism includes a plurality of bolts 18, the bottoms of the bolts 18 are respectively and fixedly connected with the tops of the two fixing plates 3, the tops of the bolts 18 penetrate through the telescopic device body 4 and are in threaded connection with nuts 19, the nuts 19 are rotated to be in threaded connection with the tops of the bolts 18, and accordingly the telescopic device body 4 is clamped through the cooperation of the nuts 19 and the fixing plates 3, and accordingly the telescopic device body is fixed.
In use, in order to prevent the nut 19 from protruding out of the top of the telescopic device body 4, the pressing block 11 is damaged due to collision between the pressing block 11 and the nut 19, as shown in fig. 4, a plurality of round grooves 20 are formed in the top of the telescopic device body 4, the top of the bolt 18 extends into the round grooves 20, the outer diameter of the nut 19 is smaller than the diameter of the round grooves 20, the top of the nut 19 is flush with the top of the telescopic device body 4, and when the nut 19 is in threaded connection with the top of the bolt 18, the nut 19 is positioned in the round grooves 20 and the top of the nut 19 is flush with the top of the telescopic device body 4, so that collision between the pressing block 11 and the nut 19 is prevented.
As shown in fig. 2 and 5, the telescopic mechanism includes a pair of second hydraulic rods 21, one ends of the two second hydraulic rods 21 opposite to each other are fixedly connected with inner walls of two ends of the hollow groove 2, one ends of the telescopic rods inside the two second hydraulic rods 21 are fixedly connected with one ends of the two support plates 5 opposite to each other, so that the two second hydraulic rods 21 work simultaneously, and the two fixing plates 3 can be driven to be close to or far away from each other, thereby being convenient for detecting the stress intensity of the telescopic device body 4 in the horizontal direction.
Working principle: firstly, a worker places a section of assembled telescopic device body 4 on the top of two fixed plates 3, leads a bolt 18 to pass through the telescopic device body 4 and extend into a round groove 20, rotates a nut 19 to be in threaded connection with the bolt 18 until the nut 19 rotates into the round groove 20, then leads two second hydraulic rods 21 to work simultaneously, drives the two fixed plates 3 to approach or separate from each other, thereby detecting the stress intensity of the telescopic device body 4 in the horizontal direction, leads a motor 15 to work electrically, leads an output shaft thereof to drive a threaded rod 13 to rotate, leads a sliding block 9 to slide between two supporting frames 12 through the threaded transmission between the threaded rod 13 and the sliding block 9, leads two sides of the sliding block 9 to slide at the peripheries of the threaded rod 13 and a long rod 14 respectively, and leads the sliding block 9 to drive a pressing block 11 to move to a proper position after the sliding block 9, then make first hydraulic stem 10 work, promote two briquetting 11 and push down telescoping device body 4, briquetting 11 bottom and telescoping device body 4 top laminating, telescoping device body 4 produces certain degree deformation, drive fixed plate 3 and remove, make round bar 6 slide in spout 7, spring 8 shrink and with the rebound force continuous action in fixed plate 3 bottom, make fixed plate 3 top laminate telescoping device body 4 bottom all the time, thereby be convenient for detect telescoping device body 4 vertically ascending atress intensity, then make slider 9 drive briquetting 11 and remove to the other end from telescoping device body 4 one end, briquetting 11 revolute 17 takes place to rotate under the effect of frictional force, thereby simulate the automobile when driving telescoping device body 4 top, telescoping device body 4's atress state.
Claims (7)
1. The utility model provides a special test bench of highway bridge telescoping device, includes casing (1), its characterized in that, hollow (2) have been seted up at casing (1) top, be provided with a pair of fixed plate (3) in hollow (2), two be provided with telescoping device body (4) between fixed plate (3) top, fixed plate (3) top is provided with fixed establishment, fixed plate (3) bottom is provided with backup pad (5), backup pad (5) and hollow (2) diapire sliding connection, backup pad (5) top fixedly connected with a pair of round bar (6), a pair of spout (7) have been seted up to fixed plate (3) bottom, round bar (6) and spout (7) sliding connection, round bar (6) peripheral cover is equipped with spring (8), spring (8) one end and fixed connection bottom fixed plate (3), spring (8) other end and backup pad (5) top fixed connection, be provided with in hollow (2) and be used for driving two fixed plate (3) and keep away from each other or be close to each other mechanism, casing (1) and slider (9) are provided with flexible depression bar (9) bottom (10), the bottom of the first hydraulic rod (10) is provided with a pair of pressing blocks (11).
2. The special test bed for the highway bridge expansion device according to claim 1, wherein the moving mechanism comprises a pair of supporting frames (12), the pair of supporting frames (12) are respectively fixedly arranged at the tops of two ends of the shell (1), a threaded rod (13) and a long rod (14) are rotatably connected between the two supporting frames (12), the threaded rod (13) penetrates through one side of the sliding block (9) and is in threaded connection with the sliding block (9), and the long rod (14) penetrates through the other side of the sliding block (9) and is in sliding connection with the sliding block (9).
3. The special test bed for the highway bridge expansion device according to claim 2, wherein one end of one supporting frame (12) is fixedly connected with a motor (15), and an output shaft of the motor (15) penetrates through the supporting frame (12) and is coaxially connected with one end of a threaded rod (13).
4. The special test bed for the highway bridge expansion device according to claim 1, wherein a fixed block (16) is fixedly connected to the bottom of the expansion rod in the first hydraulic rod (10), the pressing blocks (11) are cylindrical, a rotating shaft (17) is coaxially connected between the two pressing blocks (11), and the rotating shaft (17) penetrates through the fixed block (16) and is rotationally connected with the fixed block (16).
5. The special test bed for the highway bridge expansion device according to claim 1, wherein the fixing mechanism comprises a plurality of bolts (18), the bottoms of the bolts (18) are fixedly connected with the tops of the two fixing plates (3) respectively, and the tops of the bolts (18) penetrate through the expansion device body (4) and are in threaded connection with nuts (19).
6. The special test bed for the highway bridge expansion device according to claim 5, wherein a plurality of round grooves (20) are formed in the top of the expansion device body (4), the tops of the bolts (18) extend into the round grooves (20), the outer diameter of the nuts (19) is smaller than the diameter of the round grooves (20), and the tops of the nuts (19) are flush with the top of the expansion device body (4).
7. The special test bed for the highway bridge expansion device according to claim 1, wherein the expansion mechanism comprises a pair of second hydraulic rods (21), one ends of the two second hydraulic rods (21) opposite to each other are fixedly connected with inner walls of two ends of the empty groove (2) respectively, and one ends of the expansion rods inside the two second hydraulic rods (21) are fixedly connected with one ends of the two support plates (5) opposite to each other respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322488876.2U CN219870274U (en) | 2023-09-13 | 2023-09-13 | Special test bench of highway bridge telescoping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322488876.2U CN219870274U (en) | 2023-09-13 | 2023-09-13 | Special test bench of highway bridge telescoping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870274U true CN219870274U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322488876.2U Active CN219870274U (en) | 2023-09-13 | 2023-09-13 | Special test bench of highway bridge telescoping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870274U (en) |
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2023
- 2023-09-13 CN CN202322488876.2U patent/CN219870274U/en active Active
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