Intelligent test device for detecting mechanical properties of keel

Abstract

The utility model discloses an intelligent test device used for detecting keel mechanical properties, which comprises a test frame, a plurality of suspension assemblies, a loading mechanism and a displacement measurement assembly, the test frame comprises a main beam and side beams, the suspension assemblies are installed on the main beam, each suspension assembly comprises a suspension rod used for suspending a keel, and the loading mechanism is installed on the suspension rod. The loading mechanism is of a movable portal frame structure and can be arranged above the test frame in a crossing mode, a lead screw is installed on a cross beam of the loading mechanism and connected with a first motor, the first motor is connected with a controller, the lead screw is connected with a moving block, a second motor is installed on the moving block, and the second motor is connected with a second motor. The second motor is connected with an automatic release hook through a rope, and a weight or a sand bag is hung on the automatic release hook. According to the utility model, the test requirements of keels of various sizes can be met, and the safety of the test process can be improved while the test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to building material performance testing technology, specifically to an intelligent testing device for testing the mechanical properties of keel. Background Technology

[0002] As a commonly used building material, keel primarily serves to support the form and fix the structure, and is widely used in hotels, airport terminals, train stations, shopping malls, theaters, office buildings, and renovations of old buildings. There are many types of keels. Based on the materials used, they can be divided into wood keels, light steel keels, aluminum alloy keels, and steel keels. Based on the location of use, they can be divided into ceiling keels, wall keels, floor keels, and hanging keels. Based on different construction techniques, they can be divided into load-bearing keels and non-load-bearing keels.

[0003] During use, the keel needs to undergo relevant performance testing. The mechanical performance testing steps for light steel keel are as follows: First, the inner frame dimensions of the test frame need to be adjusted according to the relevant national standards. The keel is then installed in the test frame according to the standards, and the gypsum board is installed in the keel with corresponding wooden boards placed underneath. Next, a 30kg sandbag or weight is lifted using a rocker forklift and dropped freely from 300mm onto the pad for 5 seconds. Then, the sandbag or weight is removed, and the maximum residual deformation of the gypsum board is measured after 3 minutes. Finally, it is determined whether the light steel keel meets the specified requirements according to the relevant standards.

[0004] However, most current intelligent keel mechanical property testing machines use fixed testing frames, which typically require a large indoor space for operation and have limited functionality. Furthermore, during testing, manual lifting and releasing of sandbags or weights is usually required, a tedious and complex process that also carries certain risks. After testing, the sandbags or weights must also be manually removed, and errors during this process can easily injure the operator. Utility Model Content

[0005] The purpose of this invention is to provide an intelligent testing device for detecting the mechanical properties of keels, which can meet the testing requirements of keels of various sizes, improve testing efficiency, and enhance the safety of the testing process.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An intelligent testing device for detecting the mechanical properties of a keel includes a test frame, multiple suspension components, a loading mechanism, and a displacement measuring component. The test frame includes a main beam and side beams. The side beams are telescopically inserted into the main beam to extend the length of the test frame. The suspension components are mounted on the main beam and include hangers for suspending the keel. The keel is suspended in the test frame by multiple suspension components. The loading mechanism is a movable gantry structure that can span across the test frame. A lead screw is mounted on the crossbeam of the loading mechanism. The lead screw is connected to a first motor, which is connected to a controller. A moving block is connected to the lead screw, and a second motor is mounted on the moving block. The second motor is connected to an automatic release hook via a rope. The second motor controls the automatic release hook to rise or fall. A weight or sandbag is suspended on the automatic release hook. After the weight or sandbag is detached from the automatic release hook, it impacts the keel from above. The displacement measuring component is located below the keel and is used to measure the displacement of the keel after impact.

[0008] The side beam of this invention can be inserted into the main beam to form a telescopic structure. During testing, the side beam can be moved out of the main beam by a suitable length according to the size of the keel and then fixed. It is applicable to testing keels of different sizes. The side beam retracting into the main beam reduces the space occupied by the test frame. The loading mechanism moves above the test frame to the test position. The position of the second motor can be adjusted laterally along the crossbeam of the loading mechanism by rotating the lead screw. The weights or sandbags are fixed on the automatic release hook. The automatic release hook is controlled by the second motor to raise or lower, thereby controlling the height of the weights or sandbags. The automatic release hook is an existing technology product and can be a hook with a spring. The controller automatically controls its release. The weights or sandbags moved to the test position and test height are released by the automatic release hook. After being released, the weights or sandbags impact the keel from above. Then, the displacement of the keel after impact is measured by the displacement measuring component, thereby obtaining the residual deformation of the keel. The testing process does not require manual lifting and releasing of weights, resulting in high testing efficiency and ensuring the operational safety of the test personnel.

[0009] This utility model also has the following preferred designs:

[0010] The main beam and the side beam of this invention are provided with multiple pairs of matching pin holes. After the side beam is moved to a suitable position, the main beam and the side beam are fixedly connected by inserting pins into the corresponding pin holes.

[0011] The suspension assembly of this utility model also includes a pair of clamps for snapping onto the main beam. The clamps are connected to the hanger rod via an L-shaped rod. The hanger rod has a threaded structure, and the lower end of the hanger rod is used to fix the keel. Generally, the thread of the hanger rod can be used to connect and fix it to the keel with a nut.

[0012] Both the main beam and the side beam of this invention are provided with support legs, and the support legs are equipped with casters to facilitate the movement of the test frame.

[0013] The displacement measuring component of this utility model includes a dial indicator for measuring the residual deformation of the keel after an impact test and a movable base, wherein the dial indicator is fixedly installed on the movable base.

[0014] Preferably, the dial indicator is a switch-type magnetic base dial indicator, and the movable base is a magnetic base. Magnetic base dial indicators are existing technology products, characterized by the fact that when the switch is turned on, the magnetic base of the dial indicator can be attracted to the magnetic base; when the switch is turned off, the magnetic base of the dial indicator loses its magnetism and can be easily removed from the magnetic base. The movable base is equipped with lockable casters for easy movement and position fixing.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model adopts a combination of main beam and side beams. The side beams can be inserted into the main beam. This telescopic structure can meet different test requirements. During the test, the side beams can be moved out of the main beam by a suitable length according to the size of the keel. The length of the test frame can be flexibly adjusted, which greatly saves the test space it occupies. After the test, the side beams can be inserted into the main beam, reducing the area they occupy in the test chamber.

[0017] 2. The loading mechanism of this utility model can quickly lift or release weights or sandbags and move them to the required position. It is simple and quick to operate, occupies little space, reduces labor intensity, and at the same time provides great protection for the personal safety of operators. Attached Figure Description

[0018] Figure 1 This is a perspective view of the intelligent testing device for detecting the mechanical properties of keel according to this utility model;

[0019] Figure 2 yes Figure 1 Exploded view;

[0020] Figure 3 This is a front view of the intelligent testing device of this utility model for testing the mechanical properties of keel;

[0021] Figure 4 This is a side view of the intelligent testing device for detecting the mechanical properties of keel according to this utility model;

[0022] Figure 5 This is a structural diagram of the suspension assembly of this utility model;

[0023] Figure 6This is a structural diagram of the displacement measuring component of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Loading mechanism, 101-Controller, 102-First motor, 103-Weight, 104-Automatic release hook, 105-Second motor, 106-Screw, 2-Side beam, 201-Pin hole, 3-Main beam, 301-Pin, 4-Suspension assembly, 401-Hanging rod, 402-Clamping plate, 403-Connecting rod, 5-Fuma wheel, 6-Displacement measuring assembly, 601-Dial indicator, 602-Moving base, 603-Cast, 7-Keel. Detailed Implementation

[0026] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments, so that those skilled in the art can better understand and implement the technical solution of this utility model.

[0027] like Figures 1 to 6 As shown, an intelligent testing device for detecting the mechanical properties of keel 7 includes a test frame, multiple suspension components 4, a loading mechanism 1, and a displacement measuring component 6. The test frame includes a main beam 3 and side beams 2. The side beams 2 are telescopically inserted into the main beam 3 to extend the length of the test frame. The suspension components 4 are mounted on the main beam 3 and include hangers 401 for suspending the keel 7. The keel 7 is suspended in the test frame by multiple suspension components 4. The loading mechanism 1 is a movable gantry structure that can span across the test frame. The loading mechanism 1 has a crossbeam with a load... A lead screw 106 is installed, which is connected to a first motor 102. The first motor 102 is connected to a controller 101. A moving block is connected to the lead screw 106, and a second motor 105 is installed on the moving block. The second motor 105 is connected to an automatic release hook 104 via a rope. The second motor 105 controls the automatic release hook 104 to rise or fall. A weight 103 or a sandbag is suspended on the automatic release hook 104. After the weight 103 or sandbag is detached from the automatic release hook 104, it impacts the keel 7 from above. A displacement measuring component 6 is set below the keel 7 to measure the displacement of the keel 7 after being impacted.

[0028] In one embodiment, the main beam 3 and the side beam 2 are provided with multiple pairs of matching pin holes 201. After the side beam 2 is moved to a suitable position, the main beam 3 and the side beam 2 are fixedly connected by inserting the pin 301 into the corresponding pin hole 201.

[0029] In one embodiment, the suspension assembly 4 further includes a pair of clamping plates 402 for snapping onto the main beam 3. The lower ends of the clamping plates 402 are connected by a connecting rod 403. The clamping plates 402 are connected to the hanger rod 401 by an L-shaped rod. The hanger rod 401 has a threaded structure. The lower end of the hanger rod 401 is fixedly connected to the keel 7. Generally, the threaded nut of the hanger rod 401 can be used to connect and fix it to the keel 7.

[0030] In one embodiment, both the main beam 3 and the side beam 2 are provided with legs, and the legs are equipped with casters 5 to facilitate the movement of the test frame.

[0031] In one embodiment, the displacement measuring component 6 includes a dial gauge 601 for measuring the residual deformation of the keel 7 after an impact test and a movable base 602. The dial gauge 601 is fixedly mounted on the movable base 602, and the movable base 602 has casters 603.

[0032] Preferably, dial indicator 601 is a switch-type magnetic base dial indicator, and movable base 602 is a magnetic base. Magnetic base dial indicators are existing technology products, characterized by the fact that when the switch is turned on, the magnetic base of the dial indicator can be attracted to the magnetic base; when the switch is turned off, the magnetic base of the dial indicator loses its magnetism and can be easily removed from the magnetic base. The movable base is equipped with lockable casters for easy movement and positioning.

[0033] The method for testing the mechanical properties of keel using this invention is as follows:

[0034] First, according to the dimensions of the keel 7, the side beam 2 is pulled out from the main beam 3 and fixed with a pin 301 inserted into the pin hole 201. Next, the suspension assembly 4 is installed in the main beam 3, and the clamp 402 is fixed to the main beam 3 with a connecting rod 403. Then, the keel 7 is installed on the suspension assembly 4, and the displacement measuring assembly 6 is placed below the keel 7. Finally, the loading mechanism 1 is used to lift the weight 103, and the loading mechanism 1 is moved to position the weight 103 above the keel 7. The controller 101 is operated to raise / lower the weight 103 to the target height of the keel 7. The controller 101 is then operated to control the automatic release hook 104 to release the weight 103. After 3 minutes, the reading of the dial gauge 601 is observed and recorded. After the test, the loading mechanism 1 is used to lift and remove the weight 103, then the displacement measuring assembly 6 is removed, the keel 7 is dismantled, and the side beam 2 is inserted into the main beam 3.

[0035] The above embodiments are merely preferred embodiments of this utility model, but they cannot be construed as limiting the utility model. Any modifications and improvements made based on the concept of this utility model should fall within the protection scope of this utility model, and the specific protection scope is subject to the claims.

Claims

1. An intelligent testing device for detecting keel mechanical properties, comprising a testing frame, characterized in that: The test frame comprises a main beam and a side beam, the side beam is telescopically inserted into the main beam for expanding the length of the test frame, the suspension assembly is installed on the main beam, the suspension assembly comprises a hanger for suspending a keel, the keel is suspended and installed in the test frame through the suspension assembly, the loading mechanism is a movable gantry structure, which can be arranged above the test frame, a lead screw is installed on the cross beam of the loading mechanism, the lead screw is connected with a first motor, the first motor is connected with a controller, a moving block is connected with the lead screw, a second motor is installed on the moving block, the second motor is connected with an automatic release hook through a rope, the automatic release hook is controlled to ascend or descend through the second motor, a weight or a sandbag is hung on the automatic release hook, the weight or the sandbag impacts the keel from above after being unhooked from the automatic release hook, and a displacement measuring assembly is arranged below the keel for measuring the displacement of the keel after being impacted.

2. The intelligent testing device for detecting keel mechanical properties according to claim 1, characterized in that: A plurality of pairs of matched bolt holes are arranged on the main beam and the side beam, and the main beam and the side beam are fixedly connected by inserting a bolt into the corresponding bolt hole.

3. The intelligent testing device for detecting keel mechanical properties according to claim 1, characterized in that: The suspension assembly further comprises a pair of clamping plates for clamping on the main beam, the clamping plates connect the hanger through an L-shaped rod, the hanger is a threaded structure, and the lower end of the hanger is used for fixedly connecting the keel.

4. The intelligent testing device for detecting keel mechanics performance according to claim 1, characterized in that: The main beam and the side beam are both provided with a supporting leg, and a Foma wheel is installed on the supporting leg.

5. The intelligent testing device for detecting keel mechanics performance according to claim 1, characterized in that: The displacement measuring assembly comprises a dial gauge for measuring the residual deformation of the keel after impact test and a moving base, and the dial gauge is fixedly installed on the moving base.

6. The smart testing device for detecting keel mechanical properties according to claim 5, characterized in that: The dial gauge is a switch type magnetic base dial gauge, the moving base is a magnetic type base, and the moving base is provided with a lockable caster.

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