CN103293067A - Suspended bidirectional adjustable type instantaneous force measurement device - Google Patents

Abstract

The invention discloses a suspended bidirectional adjustable type instantaneous force measurement device. The aim of directly measuring the greatest impact forces borne in the horizontal direction and the vertical direction of a test piece can be realized through designing the suspended bidirectional adjustable type instantaneous force measurement device. Meanwhile, the device can adjust the positions in the horizontal direction and the vertical direction of a force testing platform so that the aim of adjusting the position of the force testing platform is realized according to a test sample condition, and the aims of simply operating the device and accurately measuring data are realized.

Description

A Suspension Bidirectional Adjustable Instantaneous Force Measuring Device

technical field

The invention relates to a suspended two-way adjustable instantaneous force measuring device, in particular to a device capable of simultaneously obtaining the force components of the impact force in both horizontal and vertical directions. The position of the direction can be adjusted according to the specific position of the test piece.

Background technique

Products will be impacted to varying degrees during production, transportation and actual use. A strong impact can cause serious damage to the product structure, or even malfunction. Therefore, before the product is put into the market, it is necessary to conduct an impact test on the sample to measure the safe use range of the product.

In the impact test, the traditional measurement method is the energy test method, that is, the absorbed work is calculated according to the difference between the pre-lift angle and the kick-back angle of the pendulum. However, there is no corresponding qualitative relationship between the energy absorbed by the sample and the impact force of the pendulum on the sample during the impact process, and there is no quantitative analysis model, so the impact force borne by the product cannot be directly obtained.

Contents of the invention

The object of the present invention is to provide a suspension bidirectional adjustable instantaneous force measuring device. In order to overcome the deficiencies of the existing force measuring devices, the present invention provides a suspended two-way adjustable instantaneous force measuring device. The device is equipped with sensors for testing the impact force in the horizontal and vertical directions. The impact force in the process is collected.

The technical solution of the present invention is: a suspended two-way adjustable instantaneous force measuring device, which mainly includes a mounting base plate, a transition plate, a height adjustment plate, upper and lower pads, a mounting frame, a force measuring platform, and a height adjustment screw; the mounting base plate and The base of the testing machine is connected, and there are U-shaped grooves on both sides of the bottom plate, which can realize the horizontal micro-movement of the whole device; The purpose of fine adjustment in the vertical direction; the height adjustment plate is placed between the transition plate and the installation base plate, and connected by high-strength bolts to achieve the purpose of large adjustment in the vertical direction; the lower shim is connected with the transition plate and can slide horizontally; the upper shim and the The mounting frame is fixedly connected by double-headed studs to realize the vertical lifting; the mounting frame is equipped with horizontal and vertical sensors, which can obtain the impact force values in two directions at the same time; the upper part of the mounting frame is connected with the force measuring platform for force measurement The bottom and left ends of the platform are in contact with the sensor. There is a T-shaped groove on the force measuring platform, and the test piece is fixed on the platform through the pressure plate; the screw is connected to the two lower pads, and when the screw is rotated, the two lower pads can be guaranteed to be at the same time. movement to ensure synchronicity.

The installation base plate of the suspended bidirectional adjustable instantaneous force measuring device of the present invention is made of solid steel plate, and the installation base plate is connected with the base of the testing machine through high-strength bolts to ensure installation accuracy and test safety.

The transition plate of the suspension two-way adjustable instantaneous force measuring device of the present invention is made of solid steel plate, and is connected with the installation base through high-strength bolts; a horizontal slideway is arranged above the transition plate, which can make the lower pad iron move horizontally in the slideway.

The height adjustment plate of the suspended two-way adjustable instantaneous force measuring device of the present invention is made of high-strength steel, and the height adjustment plate is connected with the transition plate and the installation base through high-strength bolts; The adjustment plate realizes large adjustment in the vertical direction of the force measuring platform.

The upper and lower pads of the suspension bidirectional adjustable instantaneous force measuring device of the present invention are made of high-strength steel, which can withstand sufficient impact force; Realize the purpose of vertical raising or lowering of the force measuring platform.

The installation frame of the suspended bidirectional adjustable instantaneous force measuring device of the present invention is cast, the bottom of the installation frame is fixedly connected with the upper pad iron, and is movably connected with the transition plate, and the upper part of the installation frame is connected with the force measuring platform; the connection between the mounting frame and the force measuring platform There are vertical and horizontal sensors between them; ribs are provided at one end and the bottom of the mounting frame to prevent damage to the mounting frame caused by excessive impact.

The force measuring platform of the suspended two-way adjustable instantaneous force measuring device of the present invention is cast, and the force measuring platform is connected with the mounting frame to ensure that the horizontal sensor on the side mounting frame of the force measuring platform is in contact, and the bottom surface of the force measuring platform is suspended on the vertical sensor . There is a T-shaped groove on the force measuring platform, and the test piece is fixed on the platform through the pressure plate; to prevent the horizontal sliding of the test piece, one end of the platform is raised to block the test piece.

The screw rod of the suspended bidirectional adjustable instantaneous force measuring device of the present invention is made of high-strength steel. The screw rod connects two lower pad irons, and the lower pad iron moves in the slideway of the transition plate by rotating the screw rod to realize the height of the force measuring platform. fine-tuning.

The method of using the suspended bidirectional adjustable instantaneous force measuring device of the present invention is as follows: firstly, the test piece is fixed on the measuring platform through the pressing plate; the horizontal position of the force measuring platform can be adjusted by installing the U-shaped groove of the base; the force can be measured by rotating the screw rod The slight movement of the vertical direction of the platform; by changing the model of the height adjustment plate between the transition plate and the installation base, the purpose of large vertical adjustment of the force measuring platform is realized.

Advantage of the present invention and beneficial effect are as follows:

1. The suspended two-way adjustable instantaneous force measuring device of the present invention can directly measure the horizontal and vertical component forces borne by the specimen.

2. The device has height and horizontal adjustment functions, and the position of the force measuring platform can be adjusted according to the condition of the test piece. The device has sufficient rigidity to ensure measurement accuracy. Moreover, the device is easy to operate, accurate in measurement, high in reliability, safe and stable, and easy to maintain, and is especially suitable for the measurement of transient bidirectional impact loads on the surface of test pieces.

Description of drawings

Figure 1: The front view of the suspended two-way adjustable instantaneous force measuring device of the present invention

Figure 2: The top view of the suspended two-way adjustable instantaneous force measuring device of the present invention

In the figure: 1-installation bottom plate, 2-height adjustment plate, 3-transition plate, 4-lower backing plate, 5-upper backing plate, 6-installation frame, 7-horizontal sensor, 8-vertical sensor, 9-measurement Force platform, 10-screw.

Detailed ways

The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the suspended two-way adjustable instantaneous force measuring device includes a mounting base plate 1, a height adjustment plate 2, a transition plate 3, a lower backing plate 4, an upper backing plate 5, a mounting frame 6, a horizontal sensor 7, a vertical Straight sensor 8, force measuring platform 9, screw rod 10; installation base plate 1 and height adjustment plate 2 are connected by bolts; height adjustment plate 2 and transition plate 3 are connected by bolts; lower backing plate 4 and transition plate 3 are connected by horizontal slideway; The upper backing plate 5 and the mounting frame 6 are fixed by bolts; the mounting frame 6 and the transition plate 3 are connected by bolts; the sensors 7 and 8 are fixed on the mounting frame 6; the force measuring platform 9 is connected to the mounting frame 6 and is in contact with the level sensor 7 , suspended on the vertical sensor 8; the screw 10 is connected with the lower backing plate 4; the test piece is fixed on the force measuring platform 9.

As shown in Figures 1 and 2, the use method of the suspension bidirectional adjustable instantaneous force measuring device of the present invention is: when the test piece is fixed on the force measuring platform 9, the force measuring platform is realized by adjusting the position of the bolt on the U-shaped groove of the installation base plate 1. 9 horizontal micro-movement; by adjusting the position of the installation base plate 1 and the base of the testing machine to realize the large-scale movement of the force measuring platform in the horizontal direction; by rotating the screw 10, the horizontal slideway of the lower backing plate 4 on the transition plate 3 is driven to move , to realize the slight movement of the height of the force measuring platform 9; by replacing the height adjustment plate 2 of different types, a large adjustment in the height direction of the force measuring platform 9 can be realized; finally determine the best position of the impact test piece, and the sensors 7 and 8 simultaneously Obtain the maximum impact force withstood by the specimen.

Claims (9)

1. suspension bi-directional adjustable transient force measurement mechanism, comprise installation base plate (1), height control plate (2), rebound (3), lower padding iron (4), go up parallels (5), erecting frame (6), force plate/platform (9), height control screw rod (10), it is characterized in that installing base plate (1) and be connected by bolt with height control plate (2); Height control plate (2) is connected by bolt with rebound (3); Lower bolster (4) is connected by horizontal slideway with rebound (3); Upper padding plate (5) passes through bolt with erecting frame (6); Erecting frame (6) is connected by bolt with rebound (3); Sensor (7), (8) are fixed on the erecting frame (6); Force plate/platform (9) is connected with erecting frame (6), and contacts with horizon sensor (7), is suspended on the vertical sensor (8); Height control screw rod (10) is connected with lower bolster (4).

2. measurement mechanism according to claim 1, be further characterized in that: described installation base plate (1) links to each other with tester base, and the both sides of described installation base plate (1) have U-shaped groove; Described rebound (3) is connected with installation base plate (1), and described rebound (3) is provided with horizontal slideway; Described height control plate (2) is placed in rebound (3) and installs between the base plate (1), connects by high-strength bolt; Described lower padding iron (4) is connected with rebound; The described parallels (5) of going up is fixedlyed connected by studs with erecting frame (6); (6) are equipped with horizontal direction sensor (7) and vertical direction sensor (8) on the described erecting frame; The top of erecting frame (6) is connected with force plate/platform, and the left end of force plate/platform (9) contacts with vertical direction sensor (8) with horizontal direction sensor (7) with the bottom, has T type groove on the force plate/platform; Height control screw rod (10) connects two lower padding irons (4).

3. measurement mechanism according to claim 1 and 2 is further characterized in that: described installation base plate (1) adopts the solid steel plate processing and fabricating, base plate (1) is installed is connected by high-strength bolt with the base of testing machine.

4. measurement mechanism according to claim 1 and 2 is further characterized in that: described rebound (3) adopts the solid steel plate processing and fabricating, link to each other with mounting seat by high-strength bolt, and the top of rebound (3) is provided with horizontal slideway.

5. measurement mechanism according to claim 1 and 2 is further characterized in that: described height control plate (2) adopts plow-steel to make and forms, and height control plate (2) is connected with mounting seat with rebound by high-strength bolt.

6. measurement mechanism according to claim 1 and 2 is further characterized in that: described lower padding iron (4) and last parallels (5) adopt plow-steel to make and form, and upper and lower parallels all adopts wedge structure.

7. measurement mechanism according to claim 1 and 2 is further characterized in that: described erecting frame (6) casting forms, erecting frame (6) below fixedlys connected with last parallels (5), with rebound (3) flexible connection, the top of erecting frame is connected with force plate/platform; Be provided with vertical and horizon sensor between erecting frame and the force plate/platform; One end and the below of erecting frame (6) are provided with floor.

8. measurement mechanism according to claim 1 and 2, be further characterized in that: described force plate/platform (9) casting forms, force plate/platform (9) is connected with erecting frame, and the bottom surface of force plate/platform (9) is suspended on the vertical reference (8), and has T type groove on the force plate/platform.

9. measurement mechanism according to claim 1 and 2 is further characterized in that: described height control screw rod (10) adopts plow-steel to make and forms, and screw rod connects two lower padding irons.

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