Deflection test tool for high-molecular shoe-type mining scraper

Abstract

The utility model relates to the technical field of scraper deflection test, and provides a deflection test tool for a macromolecule shoe type mining scraper, which comprises a rack, a pedestal and a pressure head, the pressure head consists of a first pressure head and a second pressure head which are detachable, and limiting grooves matched with the shape of the scraper are arranged in the pressure head, so that the scraper is stable and does not slide or shift in the test. The first pressing head and the second pressing head are connected through a bolt, and the top is of a plane structure so that vertical load can be applied conveniently. Two pedestals are installed on the rack, through holes are formed in the pedestals, and the two ends of the scraping plate are inserted into the through holes respectively to be fixed. The tool is simple in structure, convenient to operate and capable of being quickly assembled and disassembled, and the test efficiency is improved. According to the utility model, the design of the tool ensures that the position of the high-molecular shoe-type mining scraper is stable in the test, and accurate measurement is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of scraper deflection test, and specifically relates to a deflection test tool for high-molecular boot type mine scraper. BACKGROUND

[0002] In mine equipment, the scraper is a mechanical equipment component specially used for mine exploitation and ore conveying, which is installed at the key position of the conveying system and used for scraping and conveying ore, coal and other materials. In order to ensure the safety and reliability of the scraper in actual use, according to the relevant standards, the deflection experiment of the scraper needs to be carried out to understand the deformation of the scraper under different loads, evaluate the wear resistance and impact resistance of the scraper, and the performance change in the long-term use process, so as to provide a scientific basis for the design, manufacture and maintenance of the scraper.

[0003] In order to ensure the accuracy and reliability of the deflection experiment, the deflection experiment needs to be equipped with corresponding tooling. The deflection experiment tooling of the ordinary scraper is made according to the requirements of MT / T323-2005, which has certain limitations.

[0004] The high-molecular boot type scraper becomes the key component of the conveying system due to its excellent wear resistance and impact resistance. For the high-molecular boot type mine scraper, due to the difference in material properties from the traditional steel structure, the surface of the high-molecular boot type scraper is rubber and the core is metal. Since the overall ordinary scraper tooling is a metal material, it is difficult to match the contact center of the high-molecular boot type mine scraper, and it cannot ensure the accuracy and reliability of the test. Therefore, the deflection test tooling designed in the MT / T323-2005 standard cannot be directly used for the deflection test of the high-molecular scraper.

[0005] Therefore, it is necessary to develop a special deflection test tooling to meet the deflection test requirements of the high-molecular boot type mine scraper. UTILITY MODEL CONTENTS

[0006] In order to solve the problems in the background art, the utility model provides a deflection test tooling for a high-molecular boot type mine scraper, which comprises a rack, a pedestal mounted on the rack and a pressure head mounted on the scraper, wherein:

[0007] The pressure head comprises a first pressure head and a second pressure head which are detachably connected, and the first pressure head and the second pressure head are both internally provided with a limiting groove matched with the shape of the scraper, and the scraper is mounted in the limiting groove.

[0008] The first pressure head and the second pressure head are connected by bolts.

[0009] In the preferred scheme, the top of the first pressure head and the second pressure head is a planar structure.

[0010] In the preferred solution, two seats are installed on the rack, the seats are provided with through holes, and the two ends of the scraper are inserted into the through holes of the two seats respectively to realize fixation.

[0011] In the preferred solution, the number of bolts connecting the first pressure head and the second pressure head is two.

[0012] In the preferred solution, the first pressure head and the second pressure head are both cuboid structures.

[0013] The beneficial effects achieved by the utility model are as follows:

[0014] Firstly, the utility model realizes accurate measurement of the deflection of the scraper by the specially designed pressure head, the internally provided limiting groove matched with the shape of the scraper, the stable position of the scraper in the test process, and the prevention of sliding or displacement.

[0015] Secondly, the top of the first pressure head and the second pressure head is a plane structure, a gradually increasing vertical load is applied to the top of the pressure head by a loading device such as a hydraulic device or a mechanical loading device, the stress condition of the scraper in actual use is simulated, and the stability and reliability of the loading process are ensured.

[0016] Thirdly, the through holes provided on the seats are used to fix the two ends of the scraper, the position of the scraper in the test process is stable, and the scraper cannot move or shake.

[0017] Fourthly, the utility model has simple structure, convenient operation, and can be quickly assembled and disassembled, and the test efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a rear view angle structure schematic diagram of the utility model;

[0019] Figure 2 is a whole structure sectional view of the utility model;

[0020] Figure 3 is a front view angle structure schematic diagram of the second pressure head in the separated state;

[0021] Figure 4 is a front view angle whole structure schematic diagram of the utility model.

[0022] Mark in the drawing:

[0023] 1, pressure head; 11, first pressure head; 12, second pressure head; 2, scraper; 3, pedestal; 31, through hole; 4, rack; 5, bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the utility model will be described clearly and completely below with reference to the drawings in the utility model. The forms of the structures described in the following embodiments are only examples, and the utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0025] REFERENCE Figures 1-4 The deflection test tool of the high-molecular boot-type mine scraper of the utility model comprises a rack 4, the rack 4 is the support base of the whole test tool, installs the pedestal 3 and other components, provides stable support, and ensures that the tool does not shake or shift during the test process. The pedestal 3 is installed on the rack 4. Each pedestal 3 is provided with a through hole 31 for fixing the two ends of the scraper 2. The scraper 2 is fixed through the through hole 31 to ensure that the position of the scraper 2 is stable during the test process. The pressure head 1 is composed of a first pressure head 11 and a second pressure head 12, which are connected by a bolt 5. The first pressure head 11 and the second pressure head 12 are both cuboid structures, and a limiting groove matching the shape of the scraper 2 is formed in the inside. The top of the first pressure head 11 and the second pressure head 12 is a flat structure, which is convenient for applying vertical load. The scraper 2 is fixed through the limiting groove, and the connection through the bolt 5 ensures that the pressure head 1 does not separate during the test process. The scraper 2 has a skeleton in the core, and the skeleton is covered with a high-molecular rubber sleeve 22. The whole scraper is in the shape of a boot. The bolt 5 is used to connect the first pressure head 11 and the second pressure head 12. The stability and reliability of the pressure head 1 during the test process are ensured, and the separation or movement of the pressure head 1 is prevented.

[0026] The two ends of the scraper 2 are respectively inserted into the through holes 31 of the two pedestals 3 to realize the fixation of the scraper 2. This connection mode ensures that the scraper 2 does not move or shake during the test process. The first pressure head 11 and the second pressure head 12 are connected together by two bolts 5 to form a whole. The bolt 5 connection is not only firm and reliable, but also convenient for disassembly and assembly.

[0027] During the connection process, the scraper 2 is placed in the limiting groove of the first pressure head 11 and the second pressure head 12 to ensure that the scraper 2 does not slide or shift during the test process. The top of the pressure head 1 is a flat structure, which is convenient for contacting with the loading device such as a hydraulic device and a mechanical loading device. The loading device applies gradually increasing vertical load to the scraper 2 through the pressure head 1 to simulate the stress condition of the scraper 2 in actual use.

[0028] The deflection test tool of the high polymer boot type mining scraper realizes accurate measurement of the deflection of the scraper 2 through mutual cooperation of the components such as the rack 4, the pedestal 3, the pressure head 1, the scraper 2 and the bolt 5. The detachable connection design of the pressure head 1 enables the tool to adapt to scrapers 2 of different shapes and sizes, improving the versatility and flexibility of the tool. Meanwhile, the tool is simple in structure and convenient to operate, and can ensure the accuracy and reliability of the test results.

[0029] The specific process of the deflection test using the deflection test tool of the high polymer boot type mining scraper is as follows:

[0030] Ensure that the deflection test tool of the high polymer boot type mining scraper has been correctly assembled. Place the high polymer boot type mining scraper 2 between the two pedestals 3 on the rack 4, and insert the two ends of the scraper 2 into the through holes 31 of the two pedestals 3 respectively to realize the fixation of the scraper 2. Place the scraper 2 in the limiting grooves of the first pressure head 11 and the second pressure head 12, and then use the bolt 5 to tightly connect the first pressure head 11 and the second pressure head 12 together to ensure that the scraper 2 does not move or slide during the test process.

[0031] Apply gradually increasing vertical load to the pressure head 1 through loading devices such as hydraulic devices and mechanical loading devices to simulate the stress condition of the scraper 2 in actual use. Accurately control the size and loading speed of the load during the loading process to ensure the accuracy and reliability of the test results.

[0032] During the loading process, use measurement tools including displacement sensors and laser range finders to measure the deflection change of the scraper 2 when bearing the load, i.e. the deformation amount of the scraper 2 in the vertical direction. Real-time record the loading load and the corresponding deflection data for subsequent analysis and evaluation.

[0033] Organize the recorded data and draw a load-deflection curve graph. According to the load-deflection curve graph, analyze the deformation condition of the scraper 2 when bearing different loads, and evaluate the wear resistance, impact resistance and performance change of the scraper 2 in the long-term use process. According to the test results, make improvement suggestions on the design, manufacture and maintenance of the scraper 2 to improve the safety and reliability of the scraper 2 in actual use.

[0034] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A deflection testing fixture for a polymer boot-type mining scraper, characterized in that, It includes a frame, a base mounted on the frame, and a pressure head mounted on the scraper, wherein: The pressure head includes a first pressure head and a second pressure head that can be detachably connected. Both the first pressure head and the second pressure head have a limiting groove inside that matches the shape of the scraper, and the scraper is installed in the limiting groove. The first and second pressure heads are connected by bolts.

2. The deflection testing fixture for the polymer boot-type mining scraper according to claim 1, characterized in that: The tops of the first and second pressure heads are planar structures.

3. The deflection testing fixture for the polymer boot-type mining scraper according to claim 1, characterized in that, Two bases are installed on the frame, and the bases have through holes. The two ends of the scraper are inserted into the through holes of the two bases respectively to fix them.

4. The deflection testing fixture for the polymer boot-type mining scraper according to claim 1, characterized in that, There are two bolts connecting the first pressure head and the second pressure head.

5. The deflection testing fixture for the polymer boot-type mining scraper according to claim 1, characterized in that, Both the first and second pressure heads are rectangular parallelepiped structures.

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