CN218725378U - Loading device for bridge model performance research - Google Patents
Loading device for bridge model performance research Download PDFInfo
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- CN218725378U CN218725378U CN202221000542.5U CN202221000542U CN218725378U CN 218725378 U CN218725378 U CN 218725378U CN 202221000542 U CN202221000542 U CN 202221000542U CN 218725378 U CN218725378 U CN 218725378U
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- trolley
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Abstract
The utility model belongs to the technical field of highway bridge engineering's detection, especially, relate to a loading device of bridge model performance research, include: the supporting frames are arranged on two sides of the bridge model and fixedly connected with the bridge model through fixing pieces; the loading trolley is arranged on the supporting frame on one side, and an accelerating device is arranged on the supporting frame at the lower part of the loading trolley; the linear guide rail penetrates through the bridge model and is fixed on the support frames at two sides, and the upper part of the linear guide rail is provided with a loading trolley; and the loading track is provided with one loading track, is fixed on the support frames at two sides and is attached to the upper surface of the bridge model, and the loading wheel of the loading trolley moves along the loading track. The loading track is adopted, and the accelerating device is arranged on the loading trolley, so that the accuracy of the test data is improved, and the speed can be controlled; the two linear guide rails can ensure that the trolley cannot derail in the running process, and the monocycle is kept balanced.
Description
Technical Field
The utility model belongs to the technical field of highway bridge engineering's detection, especially, relate to a loading device of bridge model performance research.
Background
In the existing loading device for researching the performance of a bridge model, a wheel type moving trolley is adopted for loading, a power device is used for pulling a steel wire rope to drive a loading trolley to run on a loading track, a control cabinet is required for controlling, the control cabinet is heavy and is difficult to carry, the speed of the trolley is difficult to control by pulling the loading trolley through the steel wire rope, and the downward test pressure on the bridge is also influenced by the tension state of the steel wire rope, so that the test accuracy is influenced; in addition, the rails adopt a double-rail loading mode, so that the problem of uneven stress of the rails on two sides is easily caused, the data is not accurate enough, and the trolley is in danger of side turning and separation from the rails; due to the limitation of the length of the track, the steel wire rope pulls the loading trolley, so that the high speed cannot be reached, and the accuracy of experimental data can be influenced.
SUMMERY OF THE UTILITY MODEL
For solving the defect mentioned in the background art, the utility model discloses a loading device of bridge model performance research has been demonstrated.
In order to achieve the above purpose, the following technical solutions are provided:
a loading device for bridge model performance research comprises:
the supporting frames are arranged on two sides of the bridge model and fixedly connected with the bridge model through fixing pieces;
the loading trolley is arranged on the supporting frame on one side, and an accelerating device is arranged on the supporting frame at the lower part of the loading trolley;
the linear guide rail penetrates through the bridge model and is fixed on the support frames at two sides, and the upper part of the linear guide rail is provided with a loading trolley;
and the loading track is provided with one loading track, is fixed on the support frames at two sides and is attached to the upper surface of the bridge model, and the loading wheel of the loading trolley moves along the loading track.
Furthermore, the loading trolley comprises a chassis, a loading wheel, a counterweight wheel and a counterweight lug;
the middle part of the chassis is provided with a mounting hole, two sides of the mounting hole are fixedly provided with supporting lugs, the supporting lugs are provided with longitudinal long shaft holes, and the loading wheel is erected on the long shaft holes through a central shaft;
the bottom of the counterweight ear is provided with a counterweight ear hole, and the upper part of the counterweight ear is provided with a counterweight trunnion; the central shaft passes through the counterweight ear hole, the counterweight trunnion is arranged in the long shaft hole, and the counterweight wheel is hung on the counterweight trunnion; a positioning sleeve is arranged between the loading wheel and the counterweight lug;
the bottom four corners of the chassis are fixed on the sliding blocks of the linear guide rails, the number of the linear guide rails is two, and two sliding blocks are arranged on each linear guide rail.
Furthermore, the loading trolley is an electric remote control trolley.
Furthermore, the accelerating device comprises an opening and closing door, the opening and closing door is connected to the supporting frame through a hinge, and a magnetic lock is arranged between the opening and closing door and the supporting frame. After the rotating speed of the loading trolley reaches the requirement, the opening and closing door is closed, and the loading wheel rotates to the loading track at the opening and closing door so as to pass through the loading track.
Furthermore, safety baffles are arranged at two ends of the supporting frame.
Furthermore, one end of the loading track is arranged in the middle of the supporting frame, and the other end of the loading track is close to the loading wheel.
Furthermore, two ends of the linear guide rail are propped against two ends of the support frame.
Furthermore, the fixing piece is of an L-shaped structure, and a connecting bolt is arranged at the upper part of the fixing piece.
The utility model has the advantages that:
the utility model relates to a loading device for bridge model performance research, which adopts a loading track and is provided with an accelerating device on a loading trolley, so that the accuracy of test data is improved, and the speed can be controlled; the two linear guide rails can ensure that the trolley cannot derail in the running process, and the monocycle is kept balanced.
The utility model relates to a loading device of bridge model performance research adopts the removal of the mode control loading dolly of remote control, saves the unnecessary switch board, and it is convenient to remove, practices thrift the cost, and is more nimble to avoid the test error that the wire rope pulling caused, solved a series of problems that the cable wire produced and replaced difficulty such as bridge inadequacy.
The utility model relates to a loading device of bridge model performance research, the orbital one end of loading is at the support frame middle part, avoids the dolly to still contact the loading track and move forward through still behind the bridge model, cooperation safety shield, the safety and the life of better assurance dolly.
Drawings
FIG. 1 is a perspective view of a loading device for bridge model performance study;
FIG. 2 is an enlarged view of a loading trolley of a loading device for bridge model performance research;
FIG. 3 is an enlarged view of a chassis structure of a loading device for bridge model performance study;
FIG. 4 is a structural diagram of a counterweight ear of a loading device for bridge model performance study;
FIG. 5 is a schematic diagram of the connection of the opening and closing doors of a loading device for the performance study of a bridge model;
FIG. 6 is a partial enlarged view of an opening and closing door of a loading device for bridge model performance research;
wherein: 1. a support frame; 11. a safety barrier; 2. a bridge model; 21. a fixing member; 3. loading a trolley; 31. a chassis; 311. a support ear; 312. mounting holes; 3111. a long shaft hole; 32. a loading wheel; 321. a central shaft; 33. a weight wheel; 331. a weight-balancing ear; 3311. a counterweight trunnion; 3312. a counterweight ear hole; 34. a control panel; 35. a power source; 4. a linear guide rail; 41. a slider; 5. loading a track; 6. opening and closing the door; 61. a hinge; 62. magnetic lock.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto.
A loading device for bridge model performance research comprises:
the supporting frames 1 are arranged on two sides of the bridge model 2 and fixedly connected with the bridge model 2 through fixing pieces 21;
the loading trolley 3 is arranged on the support frame 1 on one side, and an accelerating device is arranged on the support frame 1 at the lower part of the loading trolley 3;
the linear guide rail 4 penetrates through the bridge model 2 and is fixed on the support frames 1 at two sides, and the upper part of the linear guide rail is provided with a loading trolley 3;
the loading track 5 is provided with one loading track, is fixed on the support frames 1 at two sides and is attached to the upper surface of the bridge model 2, and the loading wheels 32 of the loading trolley 3 move along the loading track. A loading track 5 is adopted, and an accelerating device is arranged on a loading trolley 3, so that the accuracy of test data is improved, and the speed can be controlled; the two linear guide rails 4 can ensure that the trolley cannot derail in the running process, and ensure that the monocycle keeps balance.
The loading trolley 3 comprises a chassis 31, a loading wheel 32, a counterweight wheel 33 and a counterweight lug 331;
the middle part of the chassis 31 is provided with a mounting hole 312, two sides of the mounting hole 312 are fixedly provided with support lugs 311, the support lugs 311 are provided with longitudinal long shaft holes 3111, and the loading wheel 32 is erected on the long shaft holes 3111 through a central shaft 321;
a counterweight ear hole 3312 is arranged at the bottom of the counterweight ear 331, and a counterweight trunnion 3311 is arranged at the upper part; the central shaft 321 passes through the counterweight ear hole 3312, the counterweight trunnion 3311 is disposed in the long shaft hole 3111, and the counterweight wheel 33 is hung on the counterweight trunnion 3311; a positioning sleeve is arranged between the loading wheel 32 and the counterweight lug 331; the weight wheel 33 can transmit forces to the loading wheel 32 via the weight lug 331. The influence of different loading forces on the bridge model 2 is tested by increasing or decreasing the counterweight wheels 33.
Four corners of the bottom of the chassis 31 are fixed on the sliding blocks 41 of the linear guide rails 4, two linear guide rails 4 are arranged, and two sliding blocks 41 are arranged on each linear guide rail 4.
The loading trolley 3 is an electric remote control trolley, the chassis 31 is provided with a control panel 34 and a power supply 35, the motor is arranged together with the loading wheel 32, the loading wheel 32 of the remote control trolley is controlled to rotate through the remote control panel, and the motion realization mode of the remote control trolley is the prior art and is not described in detail. The movement of the loading trolley 3 is controlled in a remote control mode, an unnecessary control cabinet is omitted, the movement is convenient, the cost is saved, the operation is more flexible, the test error caused by the pulling of the steel wire rope is avoided, and a series of problems caused by the steel wire rope and difficulties such as inadaptability for bridge replacement are solved.
The accelerating device comprises an opening and closing door 6, the opening and closing door 6 is connected to the support frame 1 through a hinge 61, and a magnetic lock 62 is arranged between the opening and closing door 6 and the support frame 1. After the rotating speed of the loading trolley 3 reaches the requirement, the opening and closing door 6 is closed, and the loading wheels 32 rotate to the loading track 5 at the opening and closing door 6 so as to pass through the loading track 5. The magnetic lock 62 can be controlled manually or the switch can be integrated into the remote control panel of the loading trolley 3. The accelerating device can realize that the loading trolley 3 passes through the bridge model 2 after reaching a certain speed, and the dynamic characteristic of the bridge model 2 is tested.
One end of the loading track is arranged in the middle of the support frame 1, and the other end of the loading track is close to the loading wheel 32. Safety baffles 11 are arranged at two ends of the support frame 1. One end of the loading track is arranged in the middle of the support frame 1, so that the trolley is prevented from moving forwards by still contacting the loading track after passing through the bridge model 2, and the safety and the service life of the trolley are better ensured by matching with the safety baffle 11.
Two ends of the linear guide rail 4 are supported at two ends of the support frame 1, so that the loading trolley 3 can have sufficient movement distance. The fixing piece 21 is of an L-shaped structure, and the upper portion of the fixing piece is provided with a connecting bolt, so that the connection is firmer.
The testing method is that in the static load test, the loading trolley 3 moves to the middle point, the loading wheel 32 applies pressure to the loading track 5, so that the loading track 5 applies pressure to the bridge model 2, and the laser range finder is arranged at the lower part of the device to measure the deformation of the bridge model 2; in the dynamic load test, after the loading trolley 3 accelerates to a certain speed, the deformation of the bridge model 2 is measured through the bridge model 2, the deformation under different speeds is repeatedly measured for a plurality of times, and recording is carried out, so that an accurate conclusion is obtained.
The testing method is that in the static load test, the loading trolley 3 moves to the middle point, the loading wheel 32 applies pressure to the loading track 5, so that the loading track 5 applies pressure to the bridge model 2, and the laser range finder is arranged at the lower part of the device to measure the deformation of the bridge model 2; in the dynamic load test, after the loading trolley 3 is accelerated to a certain speed, the loading trolley passes through the bridge model 2 repeatedly at a certain speed, and the deformation of the bridge model 2 is measured; and then adding weights, repeating the actions until the weights are added to the maximum weight, observing the condition of the bridge model 2, and recording to obtain an accurate conclusion.
The device has the advantages of simple structure, practicality, economy, safety, simple and flexible operation, convenient installation and greatly improved detection efficiency, and has very high practicability and popularization.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the present invention without departing from the scope of the present invention by using the method and contents disclosed above.
Claims (7)
1. A loading device for bridge model performance research is characterized by comprising:
the supporting frame (1) is arranged at two sides of the bridge model (2) and passes through a fixing piece (21)
Fixedly connecting the bridge model (2);
the loading trolley (3) is arranged on the support frame (1) on one side, and an accelerating device is arranged on the support frame (1) at the lower part of the loading trolley (3); the accelerating device comprises an opening and closing door (6), the opening and closing door (6) is connected to the support frame (1) through a hinge (61), and a magnetic lock (62) is arranged between the opening and closing door (6) and the support frame (1);
the linear guide rail (4) penetrates through the bridge model (2) and is fixed on the support frames (1) at two sides, and the upper part of the linear guide rail is provided with a loading trolley (3);
the loading track (5) is arranged to be one, is fixed on the support frames (1) on the two sides and is attached to the upper surface of the bridge model (2), and the loading wheels (32) of the loading trolley (3) move along the loading track.
2. The loading device for bridge model performance research according to claim 1, wherein: the loading trolley (3) comprises a chassis (31), a loading wheel (32), a counterweight wheel (33) and counterweight ears (331);
the middle of the chassis (31) is provided with a mounting hole (312), two sides of the mounting hole (312) are fixedly provided with supporting lugs (311), the supporting lugs (311) are provided with longitudinal long shaft holes (3111), and the loading wheel (32) is erected on the long shaft holes (3111) through a central shaft (321);
a counterweight ear hole (3312) is arranged at the bottom of the counterweight ear (331), and a counterweight trunnion (3311) is arranged at the upper part of the counterweight ear (331); the central shaft (321) passes through the counterweight ear hole (3312), the counterweight trunnion (3311) is arranged in the long shaft hole (3111), and the counterweight wheel (33) is hung on the counterweight trunnion (3311); a positioning sleeve is arranged between the loading wheel (32) and the counterweight ear (331);
the bottom four corners of the chassis (31) are fixed on the sliding blocks (41) of the linear guide rails (4), the number of the linear guide rails (4) is two, and each linear guide rail (4) is provided with two sliding blocks (41).
3. The loading device for bridge model performance research according to claim 2, wherein: the loading trolley (3) is an electric remote control trolley.
4. The loading device for bridge model performance research according to claim 1, wherein: safety baffles (11) are arranged at two ends of the support frame (1).
5. The loading device for bridge model performance research according to claim 1, wherein: one end of the loading track (5) is arranged in the middle of the support frame (1), and the other end of the loading track is close to the loading wheel (32).
6. The loading device for bridge model performance research according to claim 1, wherein: and two ends of the linear guide rail (4) are propped against two ends of the support frame (1).
7. The loading device for bridge model performance research according to claim 1, wherein: the fixing piece (21) is of an L-shaped structure, and a connecting bolt is arranged at the upper part of the fixing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221000542.5U CN218725378U (en) | 2022-04-27 | 2022-04-27 | Loading device for bridge model performance research |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221000542.5U CN218725378U (en) | 2022-04-27 | 2022-04-27 | Loading device for bridge model performance research |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218725378U true CN218725378U (en) | 2023-03-24 |
Family
ID=85580300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221000542.5U Active CN218725378U (en) | 2022-04-27 | 2022-04-27 | Loading device for bridge model performance research |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218725378U (en) |
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2022
- 2022-04-27 CN CN202221000542.5U patent/CN218725378U/en active Active
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