CN114754993A

CN114754993A - Screen cloth detection device that shocks resistance

Info

Publication number: CN114754993A
Application number: CN202210370340.8A
Authority: CN
Inventors: 董晓兰; 朱明慧; 刘春洋; 刘晓奇
Original assignee: Anhui Lanqi Silk Weaving Co ltd
Current assignee: Anhui Lanqi Silk Weaving Co ltd
Priority date: 2022-04-09
Filing date: 2022-04-09
Publication date: 2022-07-15

Abstract

The specification provides a screen impact resistance detection device, which relates to the technical field of screen detection equipment, and comprises a rack, a pressure detection plate, a screen mounting frame, impact balls and an impact ball release frame, wherein the rack is used for detecting the impact resistance of the screen; the screen mounting rack is mounted on the rack, and a screen to be detected is mounted on the screen mounting rack; the pressure detection plate is arranged on the rack and positioned below the screen mounting frame, and the pressure detection plate comprises a base plate, a pressure sensor arranged on the upper surface of the base plate and a bearing plate arranged on the upper part of the pressure sensor; the impact ball releasing frame is arranged on the rack and is positioned above the screen mounting frame; the impact ball is held and released by an impact ball releasing stand. The detection device impacts the screen at different heights through the impact balls, and then the impact resistance of the screen is obtained.

Description

Screen cloth detection device that shocks resistance

Technical Field

One or more embodiments of this description relate to screen cloth check out test set technical field, especially relate to a screen cloth detection device that shocks resistance.

Background

The so-called screens are different and generally mesh-like products. But rather have a strict set of mesh sizes. And the product is a netted product which has the functions of grading and screening object particles and meets the approval of industries, institutions and standards. The screen does not say 'mesh number', which is a habit that people describe and is difficult to overcome at one time. The screen size is not isolated and it is composed of a series of mesh sizes for the purpose of classification screening.

The screen is the inevitable product of refining coal mine, iron ore, industry and chemical raw materials, is a composition of tiny cells developing forward in the society, and indirectly or directly influences the development of the society. The selectivity of the screen is selected primarily based on the characteristics of the screen.

The selectivity of the screen is mainly based on the characteristics, materials, wire diameter, mesh, life length, price and the like of the screen. These several elements of the screen are in an interfering relationship with each other. The thickness of the wire diameter directly influences the service life of the screen and the price. The abrasion resistance, corrosion resistance, high temperature resistance, non-magnetic property and the like of the material directly influence the price of the screen.

Therefore, after the screen is manufactured, the impact resistance of the screen needs to be detected, so that whether the screen is qualified or not can be known. So that the sale of the closed bottom can be carried out.

Disclosure of Invention

In view of the above, an object of one or more embodiments of the present disclosure is to provide an impact resistance detection apparatus for a screen to solve the problem of detecting the impact resistance of the screen.

In view of the above, one or more embodiments of the present disclosure provide a screen impact resistance detection apparatus including a frame, a pressure detection plate, a screen mounting frame, impact balls, and an impact ball release frame; the screen mounting rack is mounted on the rack, and a screen to be detected is mounted on the screen mounting rack; the pressure detection plate is arranged on the frame and is positioned below the screen mounting frame, and the pressure detection plate comprises a foundation plate, a pressure sensor arranged on the upper surface of the foundation plate and a bearing plate arranged on the upper part of the pressure sensor; the impact ball releasing frame is arranged on the rack and is positioned above the screen mounting frame; the impact ball is held and released by an impact ball release holder.

Optionally, the screen mounting frame includes a first expansion frame, a mounting frame, and a plurality of clamping plates disposed on the mounting frame; the first telescopic frame is vertical to the horizontal plane, the lower surface of the first telescopic frame is installed at the top of the rack, and the installation frame is arranged at the top of the first telescopic frame; the periphery of the screen to be detected is clamped and installed on the screen mounting frame through clamping plates.

Optionally, the impact ball releasing rack comprises a second telescopic rack, a transverse telescopic rack and a clamp; the second expansion bracket is perpendicular to the horizontal plane, the lower surface of the second expansion bracket is installed at the top of the rack, the transverse expansion bracket is parallel to the horizontal plane, one end of the transverse expansion bracket is fixedly connected with the top of the second expansion bracket, a clamp is installed at the other end of the transverse expansion bracket, and the impact ball is clamped by the clamp.

Optionally, the clip includes the fixed strip of connection on horizontal expansion bracket, sets up the round pin axle on the fixed strip, sets up at the epaxial movable strip of round pin, sets up at epaxial torque spring of round pin and sets up the telescopic link on fixed strip and movable strip, the both ends of telescopic link are respectively through hinged joint fixed strip and movable strip, the round pin axle sets up the middle part of fixed strip, perpendicular with the horizontal plane, torque spring overlaps sell epaxial, fixed strip and movable strip are connected respectively at torque spring's both ends.

Optionally, the impact ball is made of metal and weighs one kilogram.

Optionally, a timing module is further arranged on the pressure detection plate, the duration of continuous stress of the pressure detection plate is recorded, and if the continuous stress is greater than thirty seconds and the force is equal to the weight of the impact ball, the impact failure of the screen at this time is determined.

Optionally, the weight of the large size is ten kilograms, the weight of the medium size is five kilograms, and the weight of the small size is one kilogram.

As can be seen from the above description, the impact resistance detection device for a screen provided in one or more embodiments of the present disclosure obtains the impact resistance of the screen by impacting the screen with impact balls at different heights.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the description below are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic view of an impact resistance testing apparatus for a screen according to one or more embodiments of the present disclosure;

FIG. 2 is a schematic top view of a screen mount of an impact resistance testing apparatus according to one or more embodiments of the present disclosure;

FIG. 3 is a schematic illustration of a clamp plate of an impact resistance testing apparatus for a screen according to one or more embodiments of the present disclosure;

fig. 4 is a schematic top view of a clamp of an impact testing apparatus for a screen according to one or more embodiments of the present disclosure.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure will be described in further detail with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item preceding the word comprises the element or item listed after the word and its equivalent, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

A screen impact resistance detection device comprises a frame, a pressure detection plate 1, a screen mounting frame 2, an impact ball 3 and an impact ball release frame 4. The screen mounting frame 2 is mounted on a rack, and a screen to be detected is mounted on the screen mounting frame 2. The pressure detection plate 1 is installed on a rack and located below the screen mounting frame 2, and the pressure detection plate 1 comprises a base plate 11, a pressure sensor 12 arranged on the upper surface of the base plate 11 and a pressure bearing plate 13 arranged on the upper portion of the pressure sensor 12. The impact ball releasing frame 4 is arranged on the rack and is positioned above the screen mounting frame 2; the impact ball 3 is held and released by an impact ball release bracket 4.

The screen mounting frame 2 comprises a first expansion frame 21, a mounting frame 22 and a plurality of clamping plates 23 arranged on the mounting frame 22; the periphery of the screen to be detected is clamped and installed on the screen mounting frame 2 through a clamping plate 23. The screen cloth that awaits measuring is the rectangle, and the four corners of the screen cloth that awaits measuring is all by splint 23 centre gripping. The first telescopic frame 21 is perpendicular to the horizontal plane, the lower surface of the first telescopic frame 21 is installed at the top of the rack, and the installation frame 22 is arranged at the top of the first telescopic frame 21.

Through the extension and retraction of the first telescopic frame 21, the height of the screen to be detected from the upper surface of the pressure detection plate 1 is changed, and the condition that the screen to be detected cannot be fully impacted due to the obstruction of the pressure detection plate 1 is avoided.

In order to adjust the impact strength, the impact ball releasing rack 4 includes a second telescopic rack 41, a transverse telescopic rack 42, and a clip 43. The second expansion bracket 41 is perpendicular to the horizontal plane, the lower surface mounting of second expansion bracket 41 is at the top of frame, horizontal expansion bracket 42 is parallel with the horizontal plane, the one end of horizontal expansion bracket 42 with the top fixed connection of second expansion bracket 41, clip 43 is installed to the other end of horizontal expansion bracket 42, the clip centre gripping impact ball 3.

In order to realize the purpose of controllable centre gripping, clip 43 is including connecting at the fixed strip of horizontal expansion bracket 42, setting round pin axle, the setting of setting at the epaxial activity strip of round pin, setting at epaxial torque spring of round pin and setting up the telescopic link on fixed strip and activity strip, the both ends of telescopic link are respectively through hinged joint fixed strip and activity strip, the round pin axle sets up the middle part of fixed strip is perpendicular with the horizontal plane, torque spring overlaps sell epaxial, fixed strip and activity strip are connected respectively at torque spring's both ends.

The heights of the lateral expansion bracket 42 and the clip 43 are changed by the expansion and contraction of the second expansion bracket 41, and the position of the impact ball 3 held by the clip 43 is changed by the expansion and contraction of the lateral expansion bracket 42.

In order to ensure the impact property and facilitate subsequent calculation, the impact ball 3 is made of metal and weighs one kilogram.

Furthermore, in order to be suitable for the detection of screens with different strengths, the screens are divided into a large model, a medium model and a small model according to different weights, wherein the weight of the large model is ten kilograms, the weight of the medium model is five kilograms, and the weight of the small model is one kilogram.

In order to automatically judge that the screen is broken in time, a timing module is further arranged on the pressure detection plate 1, the continuous stress duration of the pressure detection plate 1 is recorded, and if the continuous stress is greater than thirty seconds and the force is equal to the weight of the impact ball 3, the screen is judged to fail to resist impact at this time and is broken. The impact resistance of the screen is judged according to the height of the impact ball 3.

During detection, the screen to be detected is installed on the screen installation frame 2 through the clamping plate 23, the height of the screen installation frame 2 is adjusted through expansion of the first expansion bracket 21, the height of the clamp 43 is changed through expansion of the second expansion bracket 41, then the transverse expansion bracket 42 is expanded, the overlook projection of the impact ball 3 is located at the center of the screen to be detected, the impact ball 3 is released, and the impact resistance of the impact ball detected by the pressure detection plate 1 to the impact ball is judged.

If the maximum impact resistance is required to be detected, the second telescopic frame 41 is continuously lifted until the lowest height that the impact ball 3 breaks through the screen to be detected is obtained, and thus the maximum impact resistance of the screen to be detected is obtained.

In order to obtain the lowest height for breaking the to-be-detected screen, when the second telescopic frame 41 is extended, the last elongation is controlled to be 5 mm, the last elongation is controlled to be 2 mm, the last elongation is controlled to be 1 mm, the to-be-detected screen is penetrated after the impact ball 3 is released after the last extension, the to-be-detected screen cannot be penetrated after the impact ball 3 is released after the last extension, and in order to ensure that the to-be-detected screen is penetrated after the impact ball 3 is released last, repeated tests are needed for multiple times, so that the lowest height for breaking the to-be-detected screen is obtained.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; features from the above embodiments, or from different embodiments, may also be combined, steps may be implemented in any order, and there are many other variations of the different aspects of one or more embodiments of the present description, as described above, which are not provided in detail for the sake of brevity.

While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations thereof will be apparent to those skilled in the art in light of the foregoing description.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit or scope of the disclosure are intended to be included within the scope of the disclosure.

Claims

1. The screen impact resistance detection device is characterized by comprising a rack, a pressure detection plate (1), a screen mounting frame (2), an impact ball (3) and an impact ball release frame (4);

the screen mounting rack (2) is mounted on the rack, and a screen to be detected is mounted on the screen mounting rack (2);

the pressure detection plate (1) is arranged on the rack and is positioned below the screen mounting rack (2), and the pressure detection plate (1) comprises a base plate (11), a pressure sensor (12) arranged on the upper surface of the base plate (11) and a pressure bearing plate (13) arranged on the upper part of the pressure sensor (12);

The impact ball releasing frame (4) is arranged on the rack and is positioned above the screen mounting frame (2); the impact ball (3) is clamped and released by an impact ball releasing frame (4).

2. The screen impact detection apparatus of claim 1, wherein the screen mounting frame (2) comprises a first telescopic frame (21), a mounting frame (22) and a plurality of clamping plates (23) arranged on the mounting frame (22);

the first telescopic frame (21) is vertical to the horizontal plane, the lower surface of the first telescopic frame (21) is installed at the top of the rack, and the installation frame (22) is arranged at the top of the first telescopic frame (21);

the periphery of the screen to be detected is clamped and installed on the screen mounting frame (2) through a clamping plate (23).

3. The screen impact resistance detection device of claim 1, wherein the impact ball release rack (4) comprises a second telescopic rack (41), a transverse telescopic rack (42) and a clip (43);

second expansion bracket (41) is perpendicular with the horizontal plane, the lower surface mounting of second expansion bracket (41) is at the top of frame, horizontal expansion bracket (42) are parallel with the horizontal plane, the one end of horizontal expansion bracket (42) with the top fixed connection of second expansion bracket (41), clip (43) are installed to the other end of horizontal expansion bracket (42), the clip centre gripping impact ball (3).

4. The screen impact resistance detection device of claim 1, wherein the clamp (43) comprises a fixed strip connected to the transverse expansion frame (42), a pin shaft arranged on the fixed strip, a movable strip arranged on the pin shaft, a torsion spring arranged on the pin shaft, and expansion rods arranged on the fixed strip and the movable strip, wherein two ends of the expansion rod are respectively connected with the fixed strip and the movable strip through hinges, the pin shaft is arranged in the middle of the fixed strip and is vertical to a horizontal plane, the torsion spring is sleeved on the pin shaft, and two ends of the torsion spring are respectively connected with the fixed strip and the movable strip.

5. Screen impact resistance detection device according to claim 1, characterized in that the impact ball (3) is made of metal and weighs one kilogram.

6. The screen impact resistance detection device as claimed in claim 1, wherein a timing module is further arranged on the pressure detection plate (1), the duration of continuous stress of the pressure detection plate (1) is recorded, and if the continuous stress is greater than thirty seconds and the force is equal to the weight of the impact ball (3), the screen impact resistance failure at this time is judged.

7. The screen impact resistance detection device according to claim 1, wherein the impact balls (3) are made of metal and are divided into a large size, a medium size and a small size according to different weights, wherein the large size is ten kilograms in weight, the medium size is five kilograms in weight, and the small size is one kilogram in weight.

8. The screen impact resistance detection device according to claim 1, wherein an elastic layer is further provided on the upper surface of the pressure plate (13).