CN204788799U - Accredited testing organization on eccentric test equipment of barycenter - Google Patents

Abstract

The utility model discloses a testing mechanism on the center of mass eccentricity testing equipment, which comprises a linear guide rail, a slider, a horizontal scale and an L-shaped scale. The linear guide rail is installed on the installation pillar, and the slider is installed on the Above, the horizontal scale is installed in front of the slider, positioning blocks are installed on the left and right ends of the horizontal scale, the L-shaped scale is installed above the slider, and the horizontal scale is a digital display Horizontal ruler. The utility model is simple in structure, easy to use, equipped with a coordinate conversion mechanism, and the system is reliable. The axial position can be kept unchanged every time the measuring frame is raised and lowered, and the conversion between the coordinates of the rotating body and the coordinates of the structural characteristic quantity testing equipment can be realized.

Description

A testing mechanism on a center of mass eccentricity testing device

technical field

The utility model relates to a testing mechanism, in particular to a testing mechanism on a center-of-mass eccentricity testing device.

Background technique

The existing center-of-mass eccentricity measurement equipment cannot realize the conversion between the equipment coordinate system and the rotating body coordinate system during measurement, and the measurement accuracy is low.

Utility model content

The purpose of this utility model is to provide a testing mechanism on the center of mass eccentricity testing equipment with simple structure and convenient use, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A test mechanism on a center of mass eccentricity testing device, comprising a linear guide rail, a slide block, a horizontal scale and an L-shaped scale, the linear guide rail is installed on a mounting pillar, the slide block is installed above the linear guide rail, and the horizontal scale The vertical scale is installed in front of the slide block, the left end and the right end of the horizontal scale are equipped with positioning blocks, and the L-shaped scale is installed above the slide block.

As a further solution of the utility model: the horizontal scale is a digital display horizontal scale.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model is simple in structure and easy to use. It is equipped with a coordinate conversion mechanism and the system is reliable. The axial position can be kept unchanged every time the measuring frame is raised and lowered, and the conversion between the coordinates of the rotating body and the coordinates of the structural characteristic quantity testing equipment can be realized.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

Please refer to Fig. 1, a kind of test mechanism on the center of mass eccentricity testing equipment, comprises linear guide rail 1, slide block 2, horizontal scale 3 and L-shaped scale 4, and described linear guide rail 1 is installed on the installation pillar 6, and described slide The block 2 is installed on the top of the linear guide rail 1, the horizontal scale 3 is installed in front of the slider 2, the left end and the right end of the horizontal scale 3 are equipped with a positioning block 5, and the L-shaped scale 4 is installed on the slide. Above the block 2, the horizontal scale 3 is a digital horizontal scale, which can obtain test data in real time.

The movement of the slider 2 drives the horizontal scale 3 to move, and the reading of the horizontal scale 3 will show the moving distance. When measuring, the L-shaped scale 4 is in contact with the head of the rotating body to realize the conversion between the equipment coordinate system and the rotating body coordinate system , A guiding and positioning mechanism is made at the place where the equipment tooling and the lifting mechanism are connected, that is, the measuring frame has holes to cooperate with the supporting column of the measuring frame lifting mechanism, so as to ensure that the positions of the measuring frame and the supporting column are repeated during each lifting process. The lifting mechanism itself has a guiding mechanism during the lifting process. The guiding mechanism also ensures that the movement of the lifting support column during the lifting process is repeatable. Through the processing of the equipment and the later assembly, it can ensure that each equipment is in the lifting process. The first supporting column is in contact with the measuring frame at the same time, and the measuring heads of the three sensors are also in contact with the sensors at the same time, so that during the lifting process, the measuring frame moves in parallel, and basically does not tilt before and after falling on the sensor. This also avoids the instability of the lifting that will cause the change of the positional relationship of the L-shaped scale 4, ensuring the stability of the lifting to realize the repetition of the lifting. After the equipment is manufactured, a standard sample column can be placed on the measuring frame, the measuring frame can be raised and lowered repeatedly, and then the reading value of the horizontal scale 3 can be measured. By observing whether the reading of the horizontal scale 3 changes, the position of the measuring frame can be judged during the lifting process. There is no change.

The axial position can be kept unchanged every time the measuring frame is raised and lowered, because the lifting mechanism of the equipment has a guiding structure to make the lifting stable and the positioning is repeated. Both the measuring frame and the drop measuring frame can be positioned repeatedly, and the coordinate conversion mechanism can realize the conversion between the coordinates of the rotating body and the coordinates of the structural feature quantity testing equipment. Since the required test accuracy is generally higher, and for the length measurement itself, if a higher test accuracy is required, the structure itself needs to be thicker, so this part is installed on the equipment base, and it needs to be installed on the processed benchmark. The linear guide rail 1 is installed on the surface, and the slider of the digital scale is installed on the slider 2 of the linear guide rail 1. At the same time, the coordinate conversion module has the function of self-leveling to ensure that it is parallel to the product axis.

The coordinate conversion of the testing mechanism on the center of mass eccentricity testing equipment is calibrated with a standard body, that is, the coordinate relationship between the measuring mechanism and the measuring frame is measured with the center of mass of the measuring standard body. The orientation position remains unchanged, so there are functional parts for guiding and positioning when lifting. The L-shaped scale 4 has a homing function. There are positioning blocks 5 at both ends of each L-shaped scale 4. Move the L-shaped scale 4 to the positioning block 5. It can be reset to zero. Since each device needs to measure various rotating bodies, the L-shaped scale 4 must be moved. Adding a locking function will increase the burden on the moving guide rail 1, and the repeated positioning accuracy of this locking will not be too high. Not as high as the measurement accuracy of the L-shaped scale 4 itself, so the L-shaped scale 4 is not designed with a locking and fixing mechanism.

The test mechanism on the center of mass eccentricity test equipment adopts a separate structure design, and the size between the measurement mechanism and the measurement frame is calibrated with a standard body mark. If the measurement mechanism and the measurement frame are integrated, on the basis of ensuring product measurement, the measurement The length of the frame needs to be increased in design, and the measuring mechanism is suspended from the measuring frame to ensure sufficient strength without deformation during use. The direct impact is that the weight of the measuring frame will increase significantly. In order to ensure the test range of the equipment Requirements, in the selection of the sensor, it is necessary to choose a sensor with a larger rated load, which will affect the test accuracy of the instrument. Moreover, the weight of the measuring frame is greater than that of the test product when it is unloaded, which also affects the measurement accuracy of the product.

The linear guide rail 1 ensures the linearity of the movement of the slider 2, and the horizontal scale 3 measures the distance value of the movement. There is a positioning block 5 on the linear guide rail 1, and the slider can be moved so that the L-shaped scale 4 and the positioning block 5 are aligned. Clear horizontal scale 3 to zero.

When measuring, first move and fix the position of the V-shaped frame according to the rotating body to be measured, ensure that the conversion mechanism is in the state of the center of mass of the measuring mass, and ensure that the measuring frame is in the rising state, and then manually shake the handle of the sensor protection device to return the protection head. Rotate the lifting handwheel, the measuring frame falls on the mass center sensor, rotate the feet to adjust the level of the measuring frame, collect the sensor readings at this time, record the reading value of the sensor with the weighing pan, raise the measuring frame after completion, and then install the standard The sample column is used to calibrate the test equipment. Next, place the rotator to be tested on the V-shaped frame. The head of the rotator faces the direction of the L-shaped scale 4. Rotate the lifting handwheel to lower the measuring frame and land on the center of mass sensor again. In the same way, rotate the ground feet to adjust the level of the measuring frame, then move the L-shaped scale 4 to contact with the head of the rotating body, record the reading of the horizontal scale 4 at this time as L0, and then collect the sensor readings at this time, the program That is, it can calculate the mass of the revolving body and the distance from the center of mass to the head of the revolving body, record the reading value of the sensor at this time, and use the reading value of the industrial computer to automatically calculate the mass and center of mass of the revolving body. The acceleration of gravity g can be pressed on the screen of the industrial computer The actual value of the test site is manually entered, and the measuring frame is raised after completion, and the mass and centroid value are automatically calculated by the industrial computer.

The utility model is simple in structure and easy to use. It is equipped with a coordinate conversion mechanism and the system is reliable. The axial position can be kept unchanged every time the measuring frame is raised and lowered, and the conversion between the coordinates of the rotating body and the coordinates of the structural characteristic quantity testing equipment can be realized.

The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above-mentioned implementation. Within the scope of knowledge of those of ordinary skill in the art, various implementations can be made without departing from the purpose of this patent. kind of change.

Claims (2)

1. the mechanism for testing on a barycenter eccentric testing equipment, it is characterized in that, comprise line slideway (1), slide block (2), horizontal type scale (3) and L shape scale (4), described line slideway (1) is arranged on mounting column (6), described slide block (2) is arranged on the top of line slideway (1), described horizontal type scale (3) is arranged on the front of slide block (2), left end and the right-hand member of described horizontal type scale (3) are all provided with locating piece (5), and described L shape scale (4) is arranged on the top of slide block (2).

2. the mechanism for testing on barycenter eccentric testing equipment according to claim 1, is characterized in that, described horizontal type scale (3) is digital display type horizontal type scale.