Aluminum roller axial compression test device and test method

Abstract

The present invention provides an aluminum roller shaft pressure test device and a test method, which relate to the technical field of roller shaft pressure test devices, including a base, support plates are fixedly installed on both sides of the base, a crossbeam is fixedly installed between the support plates on both sides, a plurality of roller pressure blocks are lifted and installed on the crossbeam, and roller pressure plates are lifted and installed above the support plates on both sides; the air pump injects gas into the aluminum roller through a pipeline to form a high atmospheric pressure environment therein, and a Mohs hardness detection cutter head is fixedly installed on one end of the lifting connecting rod near the aluminum roller. The present invention can not only detect the compressive strength of the roller surface, but also perform Mohs hardness detection on it, and its compressive strength detection forms are diverse, which can meet the point and surface pressure detection of the roller. At the same time, by pressurizing the inside of the roller, the fracture time of the roller can be quickly determined. Compared with the human eye observation method, it is more accurate and efficient, and effectively enriches the diversified detection needs of the roller.

Description

Technical Field

[0001] The invention relates to the technical field of roller compression test devices, in particular to an aluminum roller compression test device and a test method. Background Art

[0002] The cam is provided with a plurality of guide rails on the upper surface of the base, and a plurality of guide rails are provided on the upper surface of the base to prevent the guide rails from sliding.

[0003] The above-mentioned device is used to perform compression tests on steel pipes. However, for rollers, the performance parameters of the rollers also need to be tested. For the compressive strength of the rollers, the test device used is similar to the above-mentioned steel pipe performance testing equipment, so it can be transferred to the field of compressive strength testing of rollers. However, the above-mentioned device still has obvious defects during use: the above-mentioned device only performs compression testing on a specific position through a push rod, and its detection form is relatively simple. In the compression fracture test of the roller, the traditional detection method is to use manual observation of cracks. This observation method requires frequent equipment pauses, and for microcracks on the surface of the roller, it is difficult for the human eye to accurately identify them, resulting in inaccurate test data. Summary of the Invention

[0004] The purpose of the present invention is to provide an aluminum roller axial compression test device and a test method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The cam is fixedly mounted on the support plate, and a crossbeam is fixedly mounted between the support plates on both sides. A plurality of roller pressure blocks are installed on the crossbeam in a lifting manner. Roll pressure plates are also installed above the support plates on both sides in a lifting manner. Roll pressure grooves corresponding to the roller pressure blocks are opened on the roller pressure plates. Matching blocks are installed on the sides of the roller pressure grooves in a sliding and translational manner. The matching blocks are pressed against or separated from the roller pressure blocks by sliding in translation. When the matching blocks are pressed against the roller pressure blocks, the roller pressure blocks are synchronously lowered during the lowering process of the roller pressure plate. When the matching blocks are separated from the pressing against the roller pressure blocks, the roller pressure blocks remain stationary during the lowering process of the roller pressure plate. The roller pressure block is arranged above the aluminum roller at one end away from the roller pressure plate.

[0007] The aluminum roller is movably assembled through sealing assemblies installed on the support plates on both sides. A sealing connecting ring is movably installed at the axis center of one side of the sealing assembly. The sealing connecting ring is connected to an air pump through a pipeline. The air pump pumps gas into the aluminum roller through the pipeline to form a high atmospheric pressure environment inside the aluminum roller. A rotating motor is also fixedly installed on the support plate. The driving shaft of the rotating motor is connected to the sealing assembly on one side. The rotation of the rotating motor drives the aluminum roller to rotate. The sealing assembly is also installed with an air pressure sensor inside the aluminum roller.

[0008] Several of the roller blocks are equipped with lifting links, and a Mohs hardness detection cutter head is fixedly installed on the lifting links near one end of the aluminum roller. The Mohs hardness values of several of the Mohs hardness detection cutter heads increase or decrease gradually from one side to the other. The lifting links are protruding from the roller block on one side away from the Mohs hardness detection cutter head. The Mohs hardness detection cutter head is retracted into the cutter head groove at the bottom of the roller block without external force. When the lifting links abut against the mating block, the mating block pushes the Mohs hardness detection cutter head to protrude from the roller block. By abutting the protruding Mohs hardness detection cutter head against the surface of the aluminum roller and cooperating with the rotating motor to drive the aluminum roller to rotate on a fixed axis, the Mohs hardness test of the aluminum roller is performed.

[0009] Preferably, the mechanism for driving the roller plate to perform translational and lifting movements is a hydraulic telescopic cylinder or a translational screw.

[0010] Preferably, the mechanism for driving the roller plate to perform translational and lifting movements is a translation screw, and a pair of translation screws are provided. The translation screws are fixedly mounted on the driving shaft of the screw reduction motor, and the screw reduction motor is fixedly mounted on the support plates on both sides. The translation screw is threadedly matched with the internal threaded hole opened on the roller plate, and the roller plate is driven to perform synchronous lifting and lowering movements through the rotation of the translation screw.

[0011] Preferably, several of the roller blocks are movably inserted into the hollow groove opened in the crossbeam, and lifting slide bars are fixedly installed on both sides of the roller blocks. The lifting slide bars on both sides are movably inserted into the slide bar holes opened in the crossbeam, and a reset spring is also installed on the side of the lifting slide bar located above the crossbeam. The reset spring is used to make several roller blocks be in the uppermost stroke position in the absence of external force.

[0012] Preferably, a movable sleeve on the lifting link in the roller block is provided with an inward spring, one end of the inward spring is fixedly connected to the lifting link, and the other end is fixedly connected to the roller block. The inward spring is used to push the lifting link and the Mohs hardness detection cutter head upward in the absence of external force, so that the Mohs hardness detection cutter head is retracted into the cutter head groove.

[0013] Preferably, the matching block is movably inserted into a limiting hole provided on the side of the roller plate.

[0014] Preferably, the sealing assembly includes an end cover, an annular fixing sleeve and an assembly sleeve, the annular fixing sleeve and the assembly sleeve are both provided with an assembly hole for inserting the aluminum roller, and a sealing rubber ring is also provided in the assembly hole, the assembly sleeve is installed on the support plate on one side through a bearing, and the end cover and the annular fixing sleeve are installed on the support plate on the other side through a bearing, the aluminum roller is movably inserted through one side of the annular fixing sleeve until the insertion end of the aluminum roller is embedded in the assembly hole of the assembly sleeve, after the aluminum roller is inserted, the plugging end of the end cover is inserted into the hollow tube of the aluminum roller, and finally the end cover is bolted to the side of the support plate, a sealing rubber ring is also provided on the outside of the plugging end of the end cover, a gear groove is provided on the outside of the annular fixing sleeve, the gear groove is meshed with the active gear fixedly installed on the driving shaft of the rotating motor, thereby driving the aluminum roller to rotate through the rotation of the rotating motor, and the sealing connecting ring is movably connected to the axis center of the assembly sleeve.

[0015] An aluminum roller axial pressure test method, using the above-mentioned aluminum roller axial pressure test device, comprises the following steps:

[0016] Step 1: Cut the aluminum roller into fixed lengths and assemble them through sealing assemblies so that their fixed axes are set under several roller blocks;

[0017] Step 2: Pushing a plurality of matching blocks to slide horizontally and abut against the lifting connecting rod, so that the Mohs hardness detection cutter heads in the plurality of roller blocks protrude from the cutter head slots;

[0018] Step 3: Drive the roller pressure plate downward to push several roller pressure blocks downward until the Mohs hardness test head rests on the surface of the aluminum roller. The aluminum roller is driven by the rotary motor to rotate and rotate around a fixed axis. After the aluminum roller rotates one circle, it stops and observes the scratches on the aluminum roller surface to determine the Mohs hardness range of the aluminum roller surface.

[0019] Step 4: Use an air pump to pump air into the aluminum roller so that its internal pressure is higher than the ambient pressure. At this time, push the matching block to separate it from the abutment with the lifting link, and use the roller pressure block to pressurize the aluminum roller surface in a decreasing manner to test the compressive strength of the aluminum roller;

[0020] Step 5: Perform a pressure test on the surface of the aluminum roller by setting a single roller pressure block in the middle of the aluminum roller to descend, and record the pressure value. When the air pressure sensor detects a decrease in air pressure at a certain moment, the pressure value data when the aluminum roller is pressurized and broken can be determined.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention can not only detect the compressive strength of the roller surface, but also perform Mohs hardness testing on it. The compressive strength testing forms are diverse and can meet the point and surface compressive testing of the roller. At the same time, by pressurizing the inside of the roller, the fracture time of the roller can be quickly determined. Compared with the human eye observation method, it is more accurate and efficient, and effectively enriches the diversified testing needs of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the aluminum roller assembly process of the present invention;

[0025] Figure 3 It is a schematic diagram of the disengagement of the rolling block and the abutment state of the matching block of the present invention;

[0026] Figure 4 It is a schematic diagram of the abutment state of the rolling block and the matching block of the present invention;

[0027] Figure 5 It is a schematic diagram of the abutment state of the roller block and the lifting connecting rod and the matching block of the present invention;

[0028] Figure 6 It is a three-dimensional schematic diagram of the overall structure of the sealing assembly of the present invention;

[0029] Figure 7 It is a three-dimensional schematic diagram of the roller block and its connection structure of the present invention.

[0030] In the figure: 1 base, 2 support plate, 3 crossbeam, 4 roller block, 5 roller plate, 6 roller groove, 7 matching block, 8 aluminum roller, 9 sealing connecting ring, 10 air pump, 11 rotating motor, 12 lifting connecting rod, 13 Mohs hardness detection cutter head, 14 cutter head groove, 15 translation screw, 16 screw reduction motor, 17 lifting slide bar, 18 return spring, 19 retraction spring, 20 limit hole, 21 end cover, 22 annular fixing sleeve, 23 assembly sleeve, 24 assembly hole, 25 plugging end. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-7 , the present invention provides a technical solution:

[0033] Example 1:

[0034] An aluminum roller axial pressure test device includes a base 1, support plates 2 are fixedly installed on both sides of the base 1, a crossbeam 3 is fixedly installed between the support plates 2 on both sides, a number of roller blocks 4 are installed in a lifting manner on the crossbeam 3, and roller plates 5 are also installed in a lifting manner above the support plates 2 on both sides. Rolling grooves 6 corresponding to the roller blocks 4 are opened on the roller plates 5, and matching blocks 7 are installed on the sides of the roller grooves 6 in a sliding and translational manner. The matching blocks 7 are pressed against or separated from the roller blocks 4 by sliding in translation. When the matching blocks 7 are pressed against the roller blocks 4, the roller blocks 4 are synchronously lowered during the descending process of the roller plates 5. When the matching blocks 7 are separated from the roller blocks 4, the roller blocks 4 remain stationary during the descending process of the roller plates 5, and the roller blocks 4 are arranged above the aluminum roller 8 at one end away from the roller plates 5.

[0035] The aluminum roller 8 is movably assembled through the sealing assemblies installed on the support plates 2 on both sides. A sealing connecting ring 9 is movably installed at the axis center of one side of the sealing assembly. The sealing connecting ring 9 is connected to the air pump 10 through a pipeline. The air pump 10 pumps gas into the aluminum roller 8 through the pipeline to form a high atmospheric pressure environment inside the aluminum roller 8. A rotating motor 11 is also fixedly installed on the support plate 2. The drive shaft of the rotating motor 11 is connected to the sealing assembly on one side. The rotation of the rotating motor 11 drives the aluminum roller 8 to rotate. The sealing assembly is also installed with an air pressure sensor inside the aluminum roller 8.

[0036] Several roller blocks 4 are equipped with lifting links 12 in a lifting manner. A Mohs hardness detection cutter head 13 is fixedly installed on one end of the lifting links 12 close to the aluminum roller 8. The Mohs hardness values of several Mohs hardness detection cutter heads 13 increase or decrease gradually from one side to the other. The lifting links 12 protrude from the roller block 4 on the side away from the Mohs hardness detection cutter head 13. The Mohs hardness detection cutter head 13 is retracted into the cutter head groove 14 at the bottom of the roller block 4 without external force. When the lifting links 12 abut against the mating block 7, the mating block 7 pushes the Mohs hardness detection cutter head 13 to protrude from the roller block 4. By abutting the protruding Mohs hardness detection cutter head 13 against the surface of the aluminum roller 8, the rotating motor 11 drives the aluminum roller 8 to rotate on a fixed axis, thereby performing Mohs hardness testing on the aluminum roller 8.

[0037] In this embodiment, the base 1 serves as a bearing structure for various components, and the roller block 4 is movably inserted into the hollow groove opened by the crossbeam 3, so that the roller block 4 can move up and down on the crossbeam 3. The roller block 4 abuts against the surface of the aluminum roller 8 and continues to apply downward pressure, thereby performing a compressive strength test on the surface of the aluminum roller 8. The roller block 4 moves up and down under the push of the roller plate 5. The roller plate 5 is provided with a roller groove 6 corresponding to the roller block 4. When several or a single roller block 4 needs to be lowered synchronously, it is only necessary to Push the corresponding matching block 7 to keep it against the roller block 4 set below it. In this way, the amount of downward pressure of the roller block 4 can be controlled, so as to perform multiple compressive strength tests from point to surface. The pressure sensor is set at the side of the bottom of the roller block 4 against the aluminum roller 8. At the same time, in order to accurately determine the fracture time of the aluminum roller 8 in the compressive fracture strength test of the aluminum roller 8, the air pump 10 is used to supply air to the aluminum roller 8 to put it in a high-pressure environment. The aluminum roller 8 is assembled through a sealing assembly to ensure the internal airtightness and An air pressure sensor is provided inside. When the internal air pressure drops at a certain point in time, it can be determined that the surface of the aluminum roller 8 is broken. At this time, combined with the value of the pressure sensor at the bottom of the roller pressure block 4, the compressive strength of the aluminum roller 8 when it is broken can be quickly obtained. In addition, since the precision roller also has high requirements for its surface hardness, the presence of scratches on its surface also directly affects the quality of the produced products. Therefore, it is necessary to perform a Mohs hardness test on it. However, manual testing is usually used in the prior art. In this embodiment, by pushing the matching block 7 to make it abut against the lifting link 12, several Mohs hardness detection blades 13 can be made to protrude into the blade groove 14. At this time, the protruding Mohs hardness detection blade 13 is abutted against the surface of the aluminum roller 8, and the rotating motor 11 is used to drive the aluminum roller 8 to rotate on a fixed axis, thereby performing a Mohs hardness test on the aluminum roller 8. After the test is completed, the Mohs hardness of the surface of the aluminum roller 8 can be quickly determined by observing the scratches with the naked eye. In summary, the test structure in this embodiment has various detection forms, which effectively enriches the diversified detection needs of the roller.

[0038] Example 2:

[0039] The mechanism for driving the roller plate 5 to perform translation and lifting motion is a hydraulic telescopic cylinder or a translation screw 15 .

[0040] The mechanism for driving the roller plate 5 to perform translational and lifting movements is a translation screw 15. A pair of translation screws 15 are provided. The translation screw 15 is fixedly mounted on the driving shaft of a screw reduction motor 16. The screw reduction motor 16 is fixedly mounted on the support plates 2 on both sides. The translation screw 15 is threadedly matched with the internal threaded hole opened on the roller plate 5. The rotation of the translation screw 15 drives the roller plate 5 to perform synchronous lifting and lowering movements.

[0041] In this embodiment, the translation screw 15 is driven to rotate by the screw reduction motor 16 and then the roller plate 5 is driven to move up and down. This lifting method is stable and reliable and is widely used in real life.

[0042] Example 3:

[0043] Several roller blocks 4 are movably inserted in the hollow groove opened in the crossbeam 3. Lifting slide bars 17 are fixedly installed on both sides of the roller blocks 4. The lifting slide bars 17 on both sides are movably inserted in the slide bar holes opened in the crossbeam 3. A reset spring 18 is also installed on one side of the lifting slide bar 17 located above the crossbeam 3. The reset spring 18 is used to make the several roller blocks 4 be in the uppermost stroke position in the absence of external force.

[0044] An inward spring 19 is provided on the movable sleeve of the lifting link 12 in the roller block 4. One end of the inward spring 19 is fixedly connected to the lifting link 12, and the other end is fixedly connected to the roller block 4. The inward spring 19 is used to push the lifting link 12 and the Mohs hardness detection bit 13 upward in the absence of external force, so that the Mohs hardness detection bit 13 is retracted into the bit slot 14.

[0045] In this embodiment, by providing the return spring 18 and the retraction spring 19 , the roller block 4 and the lifting link 12 are pushed by the corresponding springs in the absence of external force and are thus in the set positions.

[0046] Example 4:

[0047] The sealing assembly includes an end cover 21, an annular fixing sleeve 22 and an assembly sleeve 23. The annular fixing sleeve 22 and the assembly sleeve 23 are both provided with an assembly hole 24 for inserting the aluminum roller 8. A sealing rubber ring is also provided in the assembly hole 24. The assembly sleeve 23 is mounted on the support plate 2 on one side through a bearing, and the end cover 21 and the annular fixing sleeve 22 are mounted on the support plate 2 on the other side through a bearing. The aluminum roller 8 is movably inserted through one side of the annular fixing sleeve 22 until the insertion end of the aluminum roller 8 is embedded in the assembly sleeve 23. After the aluminum roller 8 is inserted into the assembly hole 24, the plugging end 25 of the end cover 21 is inserted into the hollow tube of the aluminum roller 8, and finally the end cover 21 is bolted to the side of the support plate 2. A sealing rubber ring is also provided on the outside of the plugging end 25 of the end cover 21, and a gear groove is provided on the outside of the annular fixing sleeve 22. The gear groove is engaged with the driving gear fixedly installed on the driving shaft of the rotating motor 11, so that the aluminum roller 8 is driven to rotate by the rotation of the rotating motor 11, and the sealing connecting ring 9 is movably connected to the axis center of the assembly sleeve 23.

[0048] In this embodiment, the specific structure of the sealing assembly and the installation method of the aluminum roller 8 are further disclosed. Through the above structure, the internal airtightness and connection stability of the aluminum roller 8 can be ensured during the installation process, thereby ensuring the normal progress of the compression test and Mohs hardness test.

[0049] An aluminum roller axial pressure test method, using the above-mentioned aluminum roller axial pressure test device, comprises the following steps:

[0050] Step 1: Cut the aluminum roller 8 into a fixed length and assemble it through the sealing assembly so that its fixed axis is set under the roller blocks 4;

[0051] Step 2: Push the matching blocks 7 to slide horizontally and abut against the lifting link 12, so that the Mohs hardness detection bits 13 in the roller blocks 4 protrude from the bit slots 14;

[0052] Step 3: Drive the roller pressure plate 5 downward to push the roller pressure blocks 4 downward until the Mohs hardness detection cutter head 13 abuts against the surface of the aluminum roller 8. The aluminum roller 8 is driven by the rotary motor 11 to rotate and rotate around the fixed axis. After the aluminum roller 8 rotates one circle, it stops and observes the scratch condition on the surface of the aluminum roller 8 to determine the Mohs hardness range of the surface of the aluminum roller 8.

[0053] Step 4: Use the air pump 10 to pump air into the aluminum roller 8 so that the internal air pressure is higher than the ambient pressure. At this time, push the matching block 7 to separate it from the abutment with the lifting link 12, and use the rolling block 4 to pressurize the surface of the aluminum roller 8 in a decreasing manner to test the compressive strength of the aluminum roller 8;

[0054] Step 5: Perform a pressure test on the surface of the aluminum roller 8 by setting the single roller pressure block 4 in the middle of the aluminum roller 8 to descend, and record the pressure value. When the air pressure sensor detects a decrease in air pressure at a certain moment, the pressure value data when the aluminum roller 8 is pressurized and broken can be determined.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum roller axial compression test device, comprising a base, characterized in that: The support plates are fixedly installed on both sides of the base, and a cross beam is fixedly installed between the support plates on both sides, and a plurality of roller blocks are lifted and installed on the cross beam, and a roller plate is lifted and installed above the support plates on both sides, and a roller groove is opened on the roller plate and corresponds to the roller blocks one by one. The side of the roller groove is slidably and translationally installed with a matching block, and the matching block is abutted or disengaged from the roller block by sliding translationally. When the matching block abuts against the roller block, the roller block is synchronously lowered during the descending process of the roller plate. When the matching block disengages from the abutment with the roller block, the roller block remains stationary during the descending process of the roller plate, and the roller block is arranged above the aluminum roller away from one end of the roller plate; The aluminum roller is movably assembled through sealing assemblies installed on the support plates on both sides. A sealing connecting ring is movably installed at the axis center of one side of the sealing assembly. The sealing connecting ring is connected to an air pump through a pipeline. The air pump pumps gas into the aluminum roller through the pipeline to form a high atmospheric pressure environment inside the aluminum roller. A rotating motor is also fixedly installed on the support plate. The driving shaft of the rotating motor is connected to the sealing assembly on one side. The rotation of the rotating motor drives the aluminum roller to rotate. The sealing assembly is also installed with an air pressure sensor inside the aluminum roller. Several of the roller blocks are equipped with lifting links, and a Mohs hardness detection cutter head is fixedly installed on the lifting links near one end of the aluminum roller. The Mohs hardness values of several of the Mohs hardness detection cutter heads increase or decrease gradually from one side to the other. The lifting links are protruding from the roller block on one side away from the Mohs hardness detection cutter head. The Mohs hardness detection cutter head is retracted into the cutter head groove at the bottom of the roller block without external force. When the lifting links abut against the mating block, the mating block pushes the Mohs hardness detection cutter head to protrude from the roller block. By abutting the protruding Mohs hardness detection cutter head against the surface of the aluminum roller and cooperating with the rotating motor to drive the aluminum roller to rotate on a fixed axis, the Mohs hardness test of the aluminum roller is performed.

2. The aluminum roller axial compression test device according to claim 1, characterized in that: The mechanism for driving the roller plate to perform translation and lifting motion is a hydraulic telescopic cylinder or a translation screw.

3. The aluminum roller axial compression test device according to claim 2, characterized in that: The mechanism for driving the roller plate to perform translational and lifting movements is a translation screw, and a pair of translation screws are provided. The translation screws are fixedly mounted on the driving shaft of the screw reduction motor, and the screw reduction motor is fixedly mounted on the support plates on both sides. The translation screw is threadedly matched with the internal threaded hole opened on the roller plate, and the roller plate is driven to perform synchronous lifting and lowering movements through the rotation of the translation screw.

4. The aluminum roller axial compression test device according to claim 1, characterized in that: Several of the roller blocks are movably inserted into the hollow grooves opened in the crossbeam, and lifting slide bars are fixedly installed on both sides of the roller blocks. The lifting slide bars on both sides are movably inserted into the slide bar holes opened in the crossbeam, and a return spring is also installed on the side of the lifting slide bar located above the crossbeam. The return spring is used to make the several roller blocks be in the uppermost stroke position in the absence of external force.

5. The aluminum roller axial compression test device according to claim 1, characterized in that: An inner retraction spring is provided on the movable sleeve of the lifting connecting rod in the roller block. One end of the inner retraction spring is fixedly connected to the lifting connecting rod, and the other end is fixedly connected to the roller block. The inner retraction spring is used to push the lifting connecting rod and the Mohs hardness detection cutter head upward in the absence of external force, so that the Mohs hardness detection cutter head is retracted into the cutter head groove.

6. The aluminum roller axial compression test device according to claim 1, characterized in that: The matching block is movably inserted into a limiting hole provided on the side of the rolling plate.

7. The aluminum roller axial compression test device according to claim 1, characterized in that: The sealing assembly includes an end cover, an annular fixing sleeve and an assembly sleeve. The annular fixing sleeve and the assembly sleeve are both provided with an assembly hole for inserting the aluminum roller, and a sealing rubber ring is also provided in the assembly hole. The assembly sleeve is installed on the support plate on one side through a bearing, and the end cover and the annular fixing sleeve are installed on the support plate on the other side through a bearing. The aluminum roller is movably inserted through one side of the annular fixing sleeve until the insertion end of the aluminum roller is embedded in the assembly hole of the assembly sleeve. After the aluminum roller is inserted, the plugging end of the end cover is inserted into the hollow tube of the aluminum roller, and finally the end cover is bolted to the side of the support plate. A sealing rubber ring is also provided on the outside of the plugging end of the end cover. A gear groove is provided on the outside of the annular fixing sleeve, and the gear groove is engaged with the active gear fixedly installed on the driving shaft of the rotating motor, thereby driving the aluminum roller to rotate through the rotation of the rotating motor, and the sealing connecting ring is movably connected to the axis center of the assembly sleeve.

8. A method for testing an aluminum roller axial pressure, using the aluminum roller axial pressure testing device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Cut the aluminum roller into fixed lengths and assemble them through sealing assemblies so that their fixed axes are set under several roller blocks; Step 2: Pushing a plurality of matching blocks to slide horizontally and abut against the lifting connecting rod, so that the Mohs hardness detection cutter heads in the plurality of roller blocks protrude from the cutter head slots; Step 3: Drive the roller pressure plate downward to push several roller pressure blocks downward until the Mohs hardness test head rests on the surface of the aluminum roller. The aluminum roller is driven by the rotary motor to rotate and rotate around a fixed axis. After the aluminum roller rotates one circle, it stops and observes the scratches on the aluminum roller surface to determine the Mohs hardness range of the aluminum roller surface. Step 4: Use an air pump to pump air into the aluminum roller so that its internal pressure is higher than the ambient pressure. At this time, push the matching block to separate it from the abutment with the lifting link, and use the roller pressure block to pressurize the aluminum roller surface in a decreasing manner to test the compressive strength of the aluminum roller; Step 5: Perform a pressure test on the surface of the aluminum roller by setting a single roller pressure block in the middle of the aluminum roller to descend, and record the pressure value. When the air pressure sensor detects a decrease in air pressure at a certain moment, the pressure value data when the aluminum roller is pressurized and broken can be determined.

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