CN218974051U

CN218974051U - Simulation test structure

Info

Publication number: CN218974051U
Application number: CN202223299366.2U
Authority: CN
Inventors: 梁拯
Original assignee: Guangdong University Of Business And Technology
Current assignee: Guangdong University Of Business And Technology
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-05
Anticipated expiration: 2032-12-09

Abstract

The utility model belongs to the technical field of concrete slab impact, in particular to a simulation test structure, aiming at the problems of inconvenient operation and low test accuracy in the prior art, the utility model provides a scheme which comprises a fixing frame, wherein the outer wall of one side of the fixing frame is fixedly connected with a winch through a bolt, the outer wall of one end of a steel wire rope on the winch is fixedly connected with an L-shaped connecting plate, the outer wall of one side of the L-shaped connecting plate is welded with a fixing frame, and the inner wall of the fixing frame is in sliding connection with a placing plate. According to the utility model, through the mutual coordination of the winch and the cylinder, the requirement of the impact ball for falling down to impact the concrete slab can be met while the impact ball is moved by a certain height, the automatic degree is high, the operation is convenient, the requirement of the impact ball for impacting the concrete slab at different heights can be met under the action of the laser range finder, meanwhile, the vibration sensor can detect the amplitude condition of the impact ball for impacting the concrete slab, the accuracy is high, and the functions are diversified.

Description

Simulation test structure

Technical Field

The utility model relates to the technical field of concrete slab impact, in particular to a simulation test structure.

Background

Because the dynamic response and damage of the concrete pavement and the concrete member are different to a certain extent, the concrete pavement cannot be applied to the reinforced concrete member, and the dynamic response test of the concrete pavement under the impact load is required to be simulated by performing the impact test on the concrete slab.

The existing test mode is that a worker firstly determines the height of the impact ball impacting the concrete slab through a tape measure, then falls down the impact ball to impact the concrete slab, finally observes the impact resistance of the concrete slab,

1. however, the manual operation mode has low automation degree and inconvenient operation.

2. Meanwhile, the impact damage resistance of the concrete slab cannot be accurately evaluated by means of manual measurement.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a simulation test structure, which overcomes the defects of the prior art and effectively solves the problems of inconvenient operation and low test accuracy by mutually matching a winch, a placing plate, an air cylinder, a impact ball, a laser range finder and a vibration sensor.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the simulation test structure comprises a fixed frame, wherein a winch is fixedly connected to the outer wall on one side of the fixed frame through bolts, an L-shaped connecting plate is fixedly connected to the outer wall at one end of a steel wire rope on the winch, a fixed frame is welded to the outer wall on one side of the L-shaped connecting plate, a placing plate is slidably connected to the inner wall of the fixed frame, impact balls are placed on the outer wall of the top of the placing plate, and a cylinder is fixedly connected to the outer wall on one side of the placing plate through bolts;

the outer wall of the bottom of the L-shaped connecting plate is fixedly connected with a laser range finder through bolts, the inner wall of the bottom of the fixing frame is welded with a supporting seat, and one side inner wall of the supporting seat is fixedly connected with a vibration sensor through bolts.

Through foretell scheme, through the mutually supporting of hoist engine and cylinder, can remove the impact ball and have satisfied the requirement that the impact ball fell down to strike concrete slab when certain height, degree of automation is high, convenient operation under the effect of laser range finder, can satisfy the impact ball and strike concrete slab's requirement on different height, vibration sensor can detect the amplitude condition when the impact ball strikes concrete slab simultaneously, and the precision is high, and the function is diversified.

Preferably, a concrete slab is placed on the outer wall of the top of the supporting seat.

By the above scheme, the concrete slab needs to be placed on the top of the supporting seat before impact load test is carried out.

Preferably, the length of the opposite sides of the inner wall of the fixed frame is larger than the outer diameter length of the impact ball.

Through the scheme, the impact ball can be guaranteed to fall from the fixed frame.

Preferably, the outer wall of the other side of the fixing frame is welded with a chute plate, and the outer wall of the other side of the L-shaped connecting plate is rotationally connected with symmetrically distributed positioning wheels which are slidably connected to the inner wall of the chute plate.

Through the scheme, when the winch drives the L-shaped connecting plate to move up and down, the positioning wheel can slide on the inner wall of the chute plate.

Preferably, the vibration sensor is connected with a signal receiver through a wire.

By the above-described solution, the vibration sensor transmits the amplitude situation into the receiver.

Preferably, the top outer wall of the fixing frame is welded with a top plate, fixed pulleys which are symmetrically distributed are arranged on the outer wall of the bottom of the top plate, and steel wire ropes on the winding engine are connected to the inner wall of the fixed pulleys in a sliding mode.

Through the scheme, the fixed pulley can facilitate the sliding of the steel wire rope on the winch.

The beneficial effects of the utility model are as follows:

1. according to the simulation test structure, through the mutual coordination of the winch and the cylinder, the impact ball can be moved to a certain height, meanwhile, the requirement that the impact ball falls down to impact the concrete slab is met, the automation degree is high, and the operation is convenient;

2. the simulation test structure of this design under the effect of laser rangefinder, can satisfy the requirement that the impact ball impacted concrete slab on not co-altitude, and vibration sensor can detect the amplitude condition when the impact ball impacted concrete slab simultaneously, and the precision is high, and the function is diversified.

Drawings

FIG. 1 is a front view of an overall structure of a simulation test structure according to the present utility model;

FIG. 2 is a bottom view of the entire structure of a simulation test structure according to the present utility model;

fig. 3 is a rear view of the overall structure of a simulation test structure according to the present utility model.

In the figure: 1 fixing frame, 2 windlass, 3L type connecting plate, 4 fixed frame, 5 placing plate, 6 cylinder, 7 impact ball, 8 laser range finder, 9 supporting seat, 10 vibration sensor, 11 concrete slab, 12 runner plate, 13 locating wheel, 14 roof, 15 fixed pulley.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, a simulation test structure, including mount 1, mount 1 one side outer wall passes through bolt fixedly connected with hoist engine 2, and wire rope one end outer wall fixedly connected with L type connecting plate 3 on the hoist engine 2, L type connecting plate 3 one side outer wall welding has fixed frame 4, and fixed frame 4 inner wall sliding connection has places board 5, place board 5 top outer wall and placed impact ball 7, place board 5 one side outer wall and pass through bolt fixedly connected with cylinder 6, through the mutual cooperation of hoist engine 2 and cylinder 6, can be with impact ball 7 removal certain height the while satisfied impact ball 7 and fallen the requirement of striking concrete slab 11, degree of automation is high, convenient operation.

Referring to fig. 2, the outer wall of the bottom of the l-shaped connecting plate 3 is fixedly connected with a laser range finder 8 through bolts, the inner wall of the bottom of the fixing frame 1 is welded with a supporting seat 9, and the inner wall of one side of the supporting seat 9 is fixedly connected with a vibration sensor 10 through bolts, under the action of the laser range finder 8, the requirements of impact balls 7 on concrete slabs 11 at different heights can be met, meanwhile, the vibration sensor 10 can detect the amplitude condition when the impact balls 7 impact the concrete slabs 11, the accuracy is high, and the functions are diversified.

Referring to fig. 1, a concrete slab 11 is placed on the outer wall of the top of the supporting seat 9, and the concrete slab 11 needs to be placed on the top of the supporting seat 9 before the impact load test is performed.

Referring to fig. 1, the length of the opposite side of the inner wall of the fixed frame 4 is longer than the outer diameter of the impact ball 7, so that the impact ball 7 can fall from the fixed frame 4.

Referring to fig. 1, a chute plate 12 is welded on the outer wall of the other side of the fixed frame 1, symmetrically distributed positioning wheels 13 are rotationally connected to the outer wall of the other side of the L-shaped connecting plate 3, the positioning wheels 13 are slidably connected to the inner wall of the chute plate 12, and when the winch 2 drives the L-shaped connecting plate 3 to move up and down, the positioning wheels 13 slide on the inner wall of the chute plate 12.

Referring to fig. 2, the vibration sensor 10 is connected to a signal receiver through a wire, and the vibration sensor 10 transmits an amplitude condition into the receiver.

Referring to fig. 3, a top plate 14 is welded on the outer wall of the top of the fixing frame 1, fixed pulleys 15 are symmetrically distributed on the outer wall of the bottom of the top plate 14, steel wire ropes on the winch 2 are slidably connected to the inner wall of the fixed pulleys 15, and the fixed pulleys 15 can facilitate the sliding of the steel wire ropes on the winch 2.

Working principle: the device can simulate the impact load action of the concrete slab 11, the mechanical response of the structure is used for evaluating the impact damage resistance of the concrete slab 11, firstly, the concrete slab 11 needing to be subjected to the impact load test is placed on the top of the supporting seat 9, then the L-shaped connecting plate 3 is driven to move upwards through the steel wire rope on the winch 2, the positioning wheel 13 can slide on the inner wall of the chute plate 12 at the moment, the distance between the impact ball 7 and the concrete slab 11 is determined through the laser range finder 8 according to the distance between the impact ball 7 and the laser range finder 8, and then the placing plate 5 is driven to move through the air cylinder 6, so that the impact ball 7 falls down from the fixed frame 4 and is crashed on the concrete slab 11, the impact condition of the concrete slab 11 is observed, and the vibration sensor 10 is used for detecting the amplitude condition of the concrete slab 11 and transmitting the amplitude condition to the receiver.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The simulation test structure comprises a fixing frame (1), and is characterized in that a winch (2) is fixedly connected to one side outer wall of the fixing frame (1) through bolts, an L-shaped connecting plate (3) is fixedly connected to one end outer wall of a steel wire rope on the winch (2), a fixing frame (4) is welded to one side outer wall of the L-shaped connecting plate (3), a placing plate (5) is slidably connected to the inner wall of the fixing frame (4), an impact ball (7) is placed on the top outer wall of the placing plate (5), and a cylinder (6) is fixedly connected to one side outer wall of the placing plate (5) through bolts;

the outer wall of the bottom of the L-shaped connecting plate (3) is fixedly connected with a laser range finder (8) through bolts, the inner wall of the bottom of the fixing frame (1) is welded with a supporting seat (9), and one side inner wall of the supporting seat (9) is fixedly connected with a vibration sensor (10) through bolts.

2. A simulation test structure according to claim 1, characterized in that the top outer wall of the support seat (9) is provided with a concrete slab (11).

3. A simulation test structure according to claim 1, characterized in that the length of the opposite sides of the inner wall of the fixed frame (4) is greater than the outer diameter of the impact ball (7).

4. The simulation test structure according to claim 1, wherein a chute plate (12) is welded on the outer wall of the other side of the fixing frame (1), and symmetrically distributed positioning wheels (13) are rotationally connected to the outer wall of the other side of the L-shaped connecting plate (3), and the positioning wheels (13) are slidably connected to the inner wall of the chute plate (12).

5. An analogue test structure according to claim 1, wherein said vibration sensor (10) is connected to a signal receiver by means of a wire.

6. The simulation test structure according to claim 1, wherein the top outer wall of the fixing frame (1) is welded with a top plate (14), fixed pulleys (15) which are symmetrically distributed are installed on the bottom outer wall of the top plate (14), and steel wire ropes on the winch (2) are connected to the inner walls of the fixed pulleys (15) in a sliding mode.