CN113376023A - Test block protection cleaning method for concrete compressive strength detection test - Google Patents
Test block protection cleaning method for concrete compressive strength detection test Download PDFInfo
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- CN113376023A CN113376023A CN202110615262.9A CN202110615262A CN113376023A CN 113376023 A CN113376023 A CN 113376023A CN 202110615262 A CN202110615262 A CN 202110615262A CN 113376023 A CN113376023 A CN 113376023A
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- 238000012360 testing method Methods 0.000 title claims abstract description 236
- 238000004140 cleaning Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 230000001681 protective effect Effects 0.000 claims abstract description 148
- 239000002699 waste material Substances 0.000 claims abstract description 91
- 238000011084 recovery Methods 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 239000002893 slag Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000012546 transfer Methods 0.000 claims description 6
- 239000012634 fragment Substances 0.000 description 9
- 239000000523 sample Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- General Health & Medical Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention discloses a test block protection cleaning method for a concrete compressive strength detection test, which comprises a bearing plate for placing a test block on a testing machine, a pressing plate for extruding the test block, a protective cover and a waste recovery device, wherein the protective cover is connected with a second driving device and can be lifted up and down; the protective cover can also gradually leave the pressure bearing plate and the pressure applying plate under the drive of the drive device, and the waste is removed to the waste recovery device. The problem of automatic feeding, automatic clearance test waste material, can not compromise simultaneously to the protection that test waste material splashes is solved.
Description
Technical Field
The invention belongs to the technical field of concrete test equipment, and particularly relates to a method for preventing test blocks of a concrete compressive strength detection test from splashing and cleaning test waste.
Background
In the building engineering, the concrete used needs to be subjected to performance tests, including the test of the compression resistance, and the concrete method is as follows: pouring a batch of concrete test blocks in a special mould, then placing the concrete test blocks in a pressure tester, extruding the concrete test blocks through the tester until the test blocks are broken, and recording various parameters in the process to obtain the compression resistance of the concrete.
The traditional concrete pressure testing machine can generate the problems of fragment splashing and scattering during testing, thereby not only increasing the strength of later cleaning work, but also possibly causing safety accidents. Therefore, the patent document with the publication number of CN207268696U provides a concrete compression testing machine, which comprises a base and a top frame, wherein four pillars are vertically arranged between the base and the top frame, a pressure applying table and a driving cylinder for driving the pressure applying table to lift along the vertical direction are movably arranged on the top frame, a pressure bearing table is arranged on the base, a rectangular protective cover is arranged between the base and the top frame, the pressure applying table and the pressure bearing table are both positioned in the protective cover, the protective cover is fixedly arranged on the four pillars, and a cover door is hinged on the protective cover; when carrying out concrete pressure test, both can prevent that the fragment that splashes from injuring other people, also can avoid the fragment to splash to ground, through setting the cover door to convertible structure, can discharge the fragment on the pressure-bearing bench with the help of the cover door, convenient clearance. However, in the prior art, because the protective cover and the cover door are arranged on the periphery of the four pillars, the generated debris still falls into the gap between the protective cover and the pillars during the test, so that the protective cover and the cover door are difficult to clean completely during cleaning; and because the protection casing sets firmly on four spinal branch posts, this technical scheme can't be applied to automatic feeding's testing machine. Similar constructions also have a compression tester disclosed in CN 206504952U and a concrete compression tester disclosed in CN 206146744U, but all suffer from the same disadvantages.
Above-mentioned technical scheme still has the problem that needs the artifical clearance waste material, the improved design of automatic clearance waste material has been proposed for this someone, a compression testing machine as disclosed in CN 210719979U, which comprises a frame, pressure disk under the fixedly connected with in the frame, the top of lower pressure disk is equipped with the pressure disk, go up pressure disk and frame sliding connection, it is connected with the driving piece that the pressure disk removed in the drive to go up the pressure disk, be provided with the cleaning device of clearance disintegrating slag on the lower pressure disk, cleaning device includes scraper blade and brush cleaner, the top surface butt of brush cleaner and lower pressure disk, the brush cleaner is connected with the drive assembly that the brush cleaner removed at lower pressure disk top surface, the scraper blade is located the direction that the brush cleaner removed and brush cleaner fixed connection, the bottom surface of scraper blade and the top surface butt of lower pressure disk, be provided with waste material box in the frame. The driving assembly drives the cleaning brush and the scraper to clean the broken slag on the top surface of the lower pressing plate, so that the lower pressing plate can test the next concrete test block. After each concrete test block is tested, the cleaning device can clean the broken slag on the lower pressing disc. But the scraps generated in the test process still can be splashed and scattered into the gap between the protective cover and the support, so that the thorough cleaning is difficult to realize in the cleaning process; waste material box is too little, only can collect the piece of test block, and big test block waste material can not hold down, even can hold, experimental not long-time just need be shut down and empty the waste residue, influence test efficiency.
In order to solve the problems in the prior art, the applicant also provides a corresponding solution, for example, the press with the protection cover disclosed in CN210803128U, includes a press and a protection cover mechanism disposed on the press, the protection cover mechanism includes a protection driving cylinder, a protection connecting assembly and a protection cover body, the protection driving cylinder is mounted on a pillar of the press through a protection bracket, a power output end of the lower end of the protection driving cylinder is connected with the protection cover body through the protection connecting assembly, the protection cover body is disposed around an execution end of the press, and a rubber strip is disposed at the lower end of the protection cover body. When the press machine works, the protection driving cylinder firstly drives the protection cover body to move downwards to form protection around the sample material, and then the execution end of the press machine moves downwards to carry out strength detection on the sample; therefore, even the tiny particles are splashed in the test, the tiny particles can be blocked by the protective cover body, and the dust or the tiny particles of the sample are prevented from flying forwards. After the test is finished, the protective driving cylinder drives the protective cover body to move upwards, then the cleaning mechanism works (see paragraph 0043 of the specification of a novel press machine test device of CN 210803127U for details), sample residues are pushed to the discharging conveying table and are output to the outside through the discharging conveying table, and the cleaning mechanism and the discharging conveying table are oppositely arranged on two sides of the working table of the tester; and finally, pushing the next test block to the workbench by the pushing mechanism, positioning by the sample positioning and placing mechanism, and repeating the procedure by the testing machine to test the next test block. Therefore, after the protection driving cylinder drives the protection cover body to move upwards, the requirements of automatic feeding and waste material removal can be met, the automation degree and the test efficiency are improved, and the following defects still exist; secondly, the cleaning mechanism can also have some waste materials to scatter downwards from the both sides of test bench in-process with sample residue propelling movement to the transport platform of unloading, and the clearance is incomplete.
Therefore, the technical schemes can not simultaneously meet the requirements of protection of test waste splashing, automatic cleaning of the test waste and no influence on automatic feeding.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a test block protection and cleaning method for a concrete compressive strength detection test, so as to solve the problem that automatic feeding, automatic cleaning of test waste and protection of test waste splashing cannot be simultaneously considered in the prior art.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a test block protection cleaning method for a concrete compressive strength detection test is characterized by comprising the following steps: the protective cover is driven by the driving device to enter between the bearing plate and the pressure applying plate, the automatic feeding device directly conveys the test blocks to the bearing plate when the protective cover is at a high position, and the protective cover is used for preventing waste materials generated by broken concrete test blocks from splashing during testing when the protective cover is at a low position; after the test is finished, the protective cover is driven by the driving device to gradually leave the bearing plate and the pressing plate, and meanwhile, the waste is removed to the waste recovery device.
The test block protection and cleaning method for the concrete compressive strength detection test comprises the following steps:
s1: initial state: a pressure plate used for extruding the concrete test block on the testing machine is lifted, a protective cover is driven by a driving device to enter between a pressure bearing plate used for placing the concrete test block on the testing machine and the pressure plate, and the protective cover is lifted to be in a high position;
s2: the automatic feeding device conveys the test block to the bearing plate;
s3: the driving device drives the protective cover to fall down to be at a low position and is abutted against the pressure bearing plate;
s4: starting a driving cylinder of the pressure tester to drive a pressing plate to apply pressure to the test block to test the compressive strength;
s5: the protective cover is driven by the driving device to gradually get away from the pressure bearing plate and the pressure applying plate, and waste materials are removed to the waste material recovery device;
s6: the driving device drives the protective cover to return to a position between the pressure bearing plate and the pressure applying plate;
s7: the driving device drives the protective cover to rise and restore to the initial state.
By adopting the technical scheme, the protective cover can enter between the bearing plate and the pressing plate under the driving of the driving device, the automatic feeding device can directly convey the test block to the bearing plate when the protective cover is at a high position, and the protective cover is used for preventing waste materials generated by the broken concrete test block from splashing when the protective cover is at a low position; after the test is finished, the protective cover is driven by the driving device to gradually leave the bearing plate and the pressing plate, and meanwhile, the waste is removed to the waste recovery device. The problem of among the prior art automatic feeding, automatic clearance test waste material, can not compromise simultaneously to the protection that test waste material splashes is solved.
In the test block protection cleaning method for the concrete compressive strength detection test, the driving device comprises a first air cylinder which is horizontally arranged and does not move relative to the testing machine and a second air cylinder which is vertically arranged, the rod end of the first air cylinder is connected with a connecting frame, the second air cylinder is arranged on the connecting frame, and the rod end of the second air cylinder is connected with the protective cover; the protective cover can be driven by the second cylinder to lift up and down, and the first cylinder drives the protective cover and the second cylinder to move horizontally.
By adopting the technical scheme, the driving devices are all provided with the air cylinders, so that the speed is high, the efficiency is high, the structure is simple, and the installation, the use and the maintenance are convenient; the initial position of the protective cover is: the protective cover is driven by the second driving cylinder to rise, so that the lower end face of the protective cover is higher than the test piece, and the protective cover cannot touch the test piece in the process that the automatic feeding device conveys the test piece to the pressure bearing plate, and the positioning accuracy of the test piece is kept; then the second cylinder drives the protection casing to fall down and abut on the bearing plate, surrounds the concrete test block, forms confined space on the upper surface of the bearing plate, and provides protection to splashing that probably produces when the test block is crushed during the test.
In the test block protection and cleaning method for the concrete compressive strength detection test, the specific working process of S4 is as follows:
s41: driving the pressing plate to move downwards by the driving cylinder, pressing the test block to test the compressive strength until the test block is slowly crushed;
s42: when the concrete test block collapses separately, the driving cylinder stops working;
s43: corresponding data are obtained through a sensor, so that the maximum pressure resistance of the test block is measured;
s44: the crushed test block waste is shielded and limited in a space formed by the upper surface of the pressure bearing plate and the protective cover;
s45: after the test is finished, the driving cylinder drives the pressing plate to return.
In the test block protection and cleaning method for the concrete compressive strength detection test, the specific working process of S5 is as follows:
s51: a piston rod of the first air cylinder extends out to drive the protective cover to carry the test block waste materials to enter the material guide groove together;
s52: meanwhile, the cleaning device cleans the top surface of the bearing plate and cleans the slag on the bearing plate to the guide chute;
s53: the test block waste and the slag are dropped from the guide chute to the waste recovery device for centralized recovery and disposal.
In the test block protection and cleaning device for the concrete compressive strength detection test, the protective cover is of a cylindrical structure with openings at the upper end and the lower end, the protective cover can accommodate the concrete test block and the pressure applying plate, and the size of an inner cavity at the lower end of the protective cover is smaller than the size of the outline of the upper surface of the pressure bearing plate; the height of the protective cover is larger than or equal to that of the test block.
By adopting the technical scheme, the protective cover is of a cylindrical structure with openings at the upper end and the lower end, the protective cover can contain the concrete test block and the pressure applying plate, the height of the protective cover is greater than or equal to that of the test block, when the pressure test is carried out on the concrete test block, the pressure applying plate is driven by the driving cylinder to enter the protective cover to apply pressure to the concrete test block, and the protective cover surrounds the concrete test block, so that fragments scattered to the periphery can be shielded and limited in the protective cover when the test block is crushed, and the phenomenon that the concrete fragments splash to accidentally injure workers can be effectively avoided; because the size of the inner cavity at the lower end of the protective cover is smaller than the size of the outline of the upper surface of the pressure bearing plate, the crushed test block fragment is completely sealed in the space formed by the upper surface of the pressure bearing plate and the protective cover, and the cleaning is more convenient and thorough.
In the test block protection and cleaning device for the concrete compressive strength detection test, the first air cylinder is connected to the air cylinder seat, the two sides of the first air cylinder on the air cylinder seat are respectively provided with the guide seats, and one ends of the guide columns in sliding fit with the guide seats are connected with the connecting frame.
Through adopting above-mentioned technical scheme, the both sides of first cylinder set up guide holder, guide post, and the guide post slides along the guide pin bushing in the guide holder, can improve the life of the first cylinder of gas to guarantee that first cylinder operates steadily when the drive protection casing clears away the waste material, clear away thoroughly.
In the test block protection and cleaning method for the concrete compressive strength detection test, the air cylinder support is arranged on the left side of the testing machine, the waste recovery device is arranged on the right side of the testing machine relative to the waste recovery device and comprises the guide chute and the waste transfer device, one end of the guide chute is connected with the right side face of the bearing plate, the other end of the guide chute is obliquely and downwards far away from the testing machine, and the waste transfer device is positioned on the lower portion of the guide chute.
Through adopting above-mentioned technical scheme, the experimental waste material on the bearing plate is clear away to the baffle box, along in the baffle box slips into waste material transfer device, waste material transfer device can adopt dump slag once only after treating that the collection is full in the waste material case can, or carry to outside the test site by waste material conveyer belt, concentrate the processing.
Furthermore, the protective cover is of a rectangular tubular structure with openings at the upper end and the lower end, noise-reducing wear-resistant strips are arranged at the lower parts of two side edges of the lower end of the protective cover, and the width of the protective cover is smaller than that of the material guide chute; the width of the guide chute is more than or equal to that of the bearing plate; the lower part of link is equipped with cleaning device, and cleaning device's length is more than or equal to the width of bearing plate, and cleaning device includes cleans scraper blade and brush cleaner.
By adopting the technical scheme, the lower end of the protective cover is provided with the noise-reducing wear-resistant strip, so that the noise generated by friction between the protective cover and the pressure bearing plate when waste materials are cleaned can be reduced; the width of the guide chute is greater than or equal to that of the bearing plate, and the width of the protective cover is smaller than that of the guide chute, so that when the protective cover is driven by the first cylinder to remove waste materials, the protective cover carries the waste materials to enter the guide chute together, and the waste materials can be prevented from leaking from two sides of the guide chute; even the protection casing carries the in-process that the waste material got into the baffle box to have tiny waste material to be detained on the bearing plate, set up in the cleaning device of link lower part, the width of its length more than or equal to bearing plate, the in-process of cleaing away the waste material also can further scrape away these waste materials, specifically including cleaning scraper blade and brush cleaner, cleaning scraper blade and brush cleaner all with the top surface butt of bearing plate, then clean the scraper blade and scrape away the disintegrating slag back on the bearing plate, the brush cleaner cleans the bearing plate top surface again, further clear up the top surface of bearing plate, guarantee that the bearing plate top surface is clean, so that test next concrete test block. After each concrete test block is tested, the cleaning device can clean the broken slag on the bearing plate conveniently, the cleaning is convenient and fast, and the test efficiency is improved. Meanwhile, the broken slag on the bearing plate does not need to be manually cleaned, and the workload of operators is reduced.
In the test block protection and cleaning device for the concrete compressive strength detection test, the protective cover is of a rectangular tubular structure with openings at the upper end and the lower end, and the lower parts of two side edges of the lower end of the protective cover are provided with the noise-reducing wear-resistant strips; the width of the protective cover is smaller than that of the material guide groove; the width of the guide chute is more than or equal to the width of the bearing plate.
Through adopting above-mentioned technical scheme, cleaning device sets up in the left side limit of protection casing lower extreme, makes waste material clearing device's structure simplify.
In the test block protection and cleaning device for the concrete compressive strength detection test, different from the technical scheme, the protection cover is a cylindrical tubular structure with openings at the upper end and the lower end, the lower end of the protection cover is provided with a noise-reducing wear-resistant strip, and the outer diameter of the protection cover is smaller than the width of the guide chute; the width of the guide chute is more than or equal to that of the bearing plate; the lower part of link is equipped with cleaning device, and cleaning device's length is more than or equal to the width of bearing plate, and cleaning device includes cleans scraper blade and brush cleaner.
In the test block protection and cleaning device for the concrete compressive strength detection test, different from the technical scheme, the protective cover is of a cylindrical tubular structure with openings at the upper end and the lower end, the left side edge of the lower end of the protective cover is provided with the cleaning device, specifically, the cleaning device is arranged along the semicircle of the left side edge of the lower end of the protective cover, and the cleaning device comprises a cleaning scraper blade and a cleaning brush; the outer diameter of the protective cover is smaller than the width of the guide chute; the width of the guide chute is more than or equal to the width of the bearing plate.
Has the advantages that:
1. the protective cover is driven by the driving device to enter between the bearing plate and the pressure applying plate, the automatic feeding device can directly convey the test block to the bearing plate when the protective cover is at a high position, and the protective cover is used for preventing waste materials generated by the broken concrete test block from splashing during testing when the protective cover is at a low position; after the test is finished, the protective cover is driven by the driving device to gradually leave the bearing plate and the pressing plate, and meanwhile, the waste is removed to the waste recovery device. The problems that automatic feeding, automatic cleaning of test wastes and protection of test waste splashing cannot be simultaneously considered in the prior art are solved; and then the problems of low automation degree, low working efficiency and high labor intensity caused by manual feeding and sample cleaning in the prior art are solved.
2. The protective cover is of a cylindrical structure with openings at the upper end and the lower end, the protective cover can contain a concrete test block and a pressure applying plate, the height of the protective cover is larger than or equal to that of the test block, when the pressure test is carried out on the concrete test block, the pressure applying plate is driven by a driving cylinder to enter the protective cover to apply pressure to the concrete test block, and the protective cover surrounds the concrete test block, so that concrete fragments generated when the test block is broken can be shielded and limited in the protective cover, and workers can be effectively prevented from being accidentally injured due to the fact that broken particles of the test block splash outwards; because the size of the inner cavity at the lower end of the protective cover is smaller than the size of the outline of the upper surface of the pressure bearing plate, the crushed test block fragment is completely sealed in the space formed by the upper surface of the pressure bearing plate and the protective cover, and the cleaning is more convenient and thorough;
3. the lower end of the protective cover is provided with the noise-reducing wear-resisting strip, so that the noise generated by friction between the protective cover and the pressure-bearing plate when waste materials are cleaned can be reduced; the width of the guide chute is greater than or equal to that of the bearing plate, and the width of the protective cover is smaller than that of the guide chute, so that when the protective cover is driven by the first cylinder to remove waste materials, the protective cover carries the waste materials to enter the guide chute together, and the waste materials can be prevented from leaking from two sides of the guide chute; even the protection casing carries the in-process that the waste material got into the baffle box to have tiny waste material to be detained on the bearing plate, set up in the cleaning device of link lower part, the width of its length more than or equal to bearing plate, the in-process of cleaing away the waste material also can further scrape away these waste materials, specifically including cleaning scraper blade and brush cleaner, cleaning scraper blade and brush cleaner all with the top surface butt of bearing plate, then clean the scraper blade and scrape away the disintegrating slag back on the bearing plate, the brush cleaner cleans the bearing plate top surface again, further clear up the top surface of bearing plate, guarantee that the bearing plate top surface is clean, so that test next concrete test block. After each concrete test block is tested, the cleaning device can clean the broken slag on the bearing plate conveniently, the cleaning is convenient and fast, and the test efficiency is improved. Meanwhile, the broken slag on the bearing plate does not need to be manually cleaned, and the workload of operators is reduced.
Drawings
Fig. 1 is a left side schematic view of a first embodiment of the invention.
Fig. 2 is a right side schematic view of the first embodiment of the invention.
Fig. 3 and 4 are schematic views illustrating a connection between a material guide chute and a pressure bearing plate according to an embodiment of the invention.
Fig. 5 is a schematic view illustrating a feeding device (not shown) pushing a test block onto a pressure bearing plate according to an embodiment of the present invention.
Fig. 6 is a schematic view illustrating the second cylinder driving the protection cover to fall and abut against the pressure bearing plate in the first embodiment of the invention.
Fig. 7 is a schematic view illustrating the piston rod of the first cylinder extending out to drive the cleaning device and the protective cover to push the waste into the material guiding chute according to the first embodiment of the present invention.
Fig. 8 is a schematic view illustrating the cleaning device and the protective cover being returned to the pressure bearing plate by retracting the piston rod of the first cylinder according to the first embodiment of the present invention.
Fig. 9 is a schematic diagram of the second cylinder driving the shield to rise and return to the initial state according to the first embodiment of the invention.
Fig. 10 is a schematic view of a second embodiment of the present invention.
Fig. 11 is a schematic view of a third embodiment of the present invention.
Fig. 12 is a schematic view of a fourth embodiment of the present invention.
In the figure: the device comprises a first cylinder 1, a guide seat 2, a guide post 3, a protective cover 4, a second cylinder 5, a cleaning brush 6, a connecting frame 7, a cleaning scraper 8, a lug 9, a noise-reducing wear-resistant strip 10, a bearing plate 11, a guide chute 12, a cylinder support 13, a driving cylinder 14, a top frame 15, a stand column 16, a pressure applying plate 17, a test block 18 and a base 19.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention is further illustrated by the following non-limiting examples in combination with the accompanying drawings.
The front, rear, left and right directions of the present invention are described with reference to the front, rear, left and right directions shown in the drawings. For ease of illustration, only the portions relevant to the embodiments of the present invention are shown.
The first embodiment is as follows:
a test block protection cleaning method for a concrete compressive strength detection test is characterized in that a test block protection cleaning device for the concrete compressive strength detection test is adopted to protect a test block in the test and clean waste materials after the test;
referring to fig. 1 to 9, a test block protection and cleaning device for concrete compression strength testing test, the testing machine used in the test comprises a base 19, a top frame 15 connected above the base 19 through a column 16 (part of the column 16 is hidden in the figure for clarity of the drawing), the automatic feeding device comprises a bearing plate 11 arranged on a base 19, a pressing plate 17 and a driving cylinder 14 used for driving the pressing plate 17 to lift in the vertical direction are movably arranged on an upper frame 15, the bearing plate 11 is used for placing a concrete test block 18, the pressing plate 17 is driven by the driving cylinder 14 to extrude the concrete test block 18, the automatic feeding device can convey the test block 18 onto the bearing plate 11 when the protective cover 4 is in a high position, and the protective cover 4 is used for preventing waste generated by the broken concrete test block 18 from splashing when the protective cover 4 is in a low position; the protective hood 4 can also be driven by the drive means gradually away from the pressure-bearing plate 11 and the pressure-applying plate 17 and clear the waste material to a waste recovery device.
Specifically, the driving device comprises a first driving device and a second driving device, the first driving device is a first air cylinder 1 which is horizontally arranged, and the rod end of the first air cylinder 1 is connected with a connecting frame 7; the second driving device is a second air cylinder 5 which is vertically arranged, the second air cylinder 5 is arranged on the connecting frame 7, and the rod end of the second air cylinder 5 is connected with a lug 9 on the side edge of the protective cover 4; the protective cover 4 is driven by the second cylinder 5 to lift up and down, and the first cylinder 1 drives the protective cover 4 and the second cylinder 5 to move horizontally.
First cylinder 1 is connected on cylinder support 13, and the both sides that lie in first cylinder 1 on cylinder support 13 set up guide holder 2 respectively, are equipped with on the guide holder 2 rather than sliding fit's guide post 3, and the hole of guide holder 2 is passed to the one end of guide post 3, and the other end links to each other with link 7.
In this embodiment, the cylinder support 13 is fixed on the left side of the testing machine base 19 and can be connected to the ground, the waste recycling device and the cylinder support 13 are oppositely arranged on the right side of the testing machine, the waste recycling device comprises a guide chute 12 and a waste transferring device, one end of the guide chute 12 is connected with the right side surface of the bearing plate 11, the other end of the guide chute is obliquely and downwards away from the testing machine, the waste transferring device is located on the lower portion of the guide chute 12, and the waste transferring device in this embodiment adopts a waste box (not shown in the figure).
In the embodiment, the protective cover 4 is made of transparent materials such as organic glass and the like, so that a tester can conveniently observe the test process, the protective cover 4 is of a rectangular cylindrical structure with openings at the upper end and the lower end, the protective cover 4 can contain a concrete test block 18 and a pressure applying plate 17, and the size of an inner cavity at the lower end of the protective cover 4 is smaller than the size of the outline of the upper surface of the pressure bearing plate 11; the height of the protective cover 4 is more than or equal to that of the test block 18; the lower parts of two side edges at the lower end of the protective cover 4 are provided with noise-reducing wear-resistant strips 10 which are made of polyurethane rubber, the width of the protective cover 4 is smaller than that of the material guide chute 12, namely the distance between the front side surface and the rear side surface of the protective cover 4 is smaller than the distance between the inner side surfaces of the two side chute edges of the material guide chute 12; the width of the material guide chute 12 is more than or equal to that of the pressure bearing plate 11; the lower part of link 7 is equipped with cleaning device, and cleaning device's length more than or equal to pressure-bearing plate 11's width, cleaning device include cleaning scraper blade 8 and brush cleaner 6, cleaning scraper blade 8 and brush cleaner 6 all with the top surface butt of pressure-bearing plate 11.
The working process of the embodiment is as follows:
(1) initial state: a pressure applying plate 17 used for extruding the concrete test block on the testing machine is lifted, a protective cover 4 is driven by a driving device to enter between a pressure bearing plate 11 used for placing the concrete test block on the testing machine and the pressure applying plate 17, and the protective cover 4 is lifted to be at a high position and is positioned right above the pressure bearing plate 11 (figure 9);
(2) the automatic feeding device conveys the test block 18 to the bearing plate 11 (fig. 5);
(3) the second cylinder 5 drives the protective cover 4 to fall down to be in a low position and abutted against the pressure bearing plate 11 (figure 6);
(4) starting a pressure tester, driving a cylinder 14 to drive a pressure applying plate 17 to move downwards and apply pressure to a test block 18 until the test block 18 is slowly crushed; when the concrete test block 18 is cracked, the driving cylinder 14 stops working, corresponding data are obtained through a sensor, and therefore the maximum pressure resistance of the test block 18 is measured; the crushed test block waste is shielded and limited in a space formed by the upper surface of the pressure bearing plate 11 and the protective cover 4;
(5) after the test is finished, the driving cylinder 14 drives the pressing plate 17 to rise;
(6) a piston rod of the first cylinder 1 extends out to drive the protective cover 4 to carry the test block waste together into the guide chute 12, meanwhile, the cleaning device cleans the top surface of the bearing plate 11, the crushed slag on the bearing plate 11 is cleaned to the guide chute 12, and the test block waste and the crushed slag slide from the guide chute 12 to the waste recovery device for centralized recovery and disposal (fig. 7);
(7) the piston rod of the first cylinder 1 retracts, driving the protection cover 4 to return between the pressure bearing plate 11 and the pressure applying plate 17 and to be positioned right above the pressure bearing plate 11 (fig. 8);
(8) the second cylinder 5 drives the protective cover 4 to lift up and return to the initial state (fig. 9);
(9) and (5) repeating the steps (2) to (8) and carrying out the test of the next test block.
Example two:
referring to fig. 10, a test block protection cleaning method for a concrete compressive strength test includes that a protective cover 4 is a rectangular tubular structure with openings at the upper and lower ends, noise-reducing wear-resistant strips 10 are arranged on the lower portions of two side edges of the lower end of the protective cover 4, a cleaning device is arranged on the left side edge of the lower end of the protective cover 4, the length of the cleaning device is greater than or equal to the width of a pressure-bearing plate 11, and the cleaning device includes a cleaning scraper 8 and a cleaning brush 6; the rest of the structure and the working process are the same as those of the first embodiment, and are not described again.
Example three:
referring to fig. 11, a test block protection cleaning method for a concrete compressive strength test includes that a protection cover 4 is a cylindrical tubular structure with openings at upper and lower ends, a noise-reducing wear-resistant strip 10 is disposed at the lower end of the protection cover 4, and the outer diameter of the protection cover 4 is smaller than the width of a material guide chute 12; the width of the material guide chute 12 is more than or equal to that of the pressure bearing plate 11; the lower part of the connecting frame 7 is provided with a cleaning device, the length of the cleaning device is more than or equal to the width of the bearing plate 11, and the cleaning device comprises a cleaning scraper 8 and a cleaning brush 6. The rest of the structure and the working process are the same as those of the first embodiment, and are not described again.
Example four:
referring to fig. 12, in a test block protection cleaning method for a concrete compressive strength test, a protective cover 4 is a cylindrical tubular structure with openings at the upper and lower ends, a cleaning device is arranged at the left side edge of the lower end of the protective cover 4, specifically, the cleaning device is arranged along a semicircle of the left side edge of the lower end of the protective cover 4, and the cleaning device includes a cleaning scraper 8 and a cleaning brush 6; the outer diameter of the protective cover 4 is smaller than the width of the material guide groove 12; the width of the material guide chute 12 is greater than or equal to the width of the pressure bearing plate 11. The rest of the structure and the working process are the same as those of the first embodiment, and are not described again.
In the description of the present invention, it should be noted that the terms "left", "right", "front", "back", "upper", "lower", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and the above terms are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
The above-mentioned embodiments are only for understanding the present invention, and are not intended to limit the technical solutions of the present invention, and those skilled in the art can make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications should be covered by the scope of the claims of the present invention.
Claims (12)
1. A test block protection cleaning method for a concrete compressive strength detection test is characterized by comprising the following steps: the protective cover is driven by the driving device to enter between the bearing plate and the pressure applying plate, the automatic feeding device directly conveys the test blocks to the bearing plate when the protective cover is at a high position, and the protective cover is used for preventing waste materials generated by broken concrete test blocks from splashing during testing when the protective cover is at a low position; after the test is finished, the protective cover is driven by the driving device to gradually leave the bearing plate and the pressing plate, and meanwhile, the waste is removed to the waste recovery device.
2. The test block protection and cleaning method for the concrete compression strength detection test according to claim 1, which is characterized in that: the method comprises the following steps:
s1: initial state: a pressure plate used for extruding the concrete test block on the testing machine is lifted, a protective cover is driven by a driving device to enter between a pressure bearing plate used for placing the concrete test block on the testing machine and the pressure plate, and the protective cover is lifted to be in a high position;
s2: the automatic feeding device conveys the test block to the bearing plate;
s3: the driving device drives the protective cover to fall down to be at a low position and is abutted against the pressure bearing plate;
s4: starting a driving cylinder of the pressure tester to drive a pressing plate to apply pressure to the test block to test the compressive strength;
s5: the protective cover is driven by the driving device to gradually get away from the pressure bearing plate and the pressure applying plate, and waste materials are removed to the waste material recovery device;
s6: the driving device drives the protective cover to return to a position between the pressure bearing plate and the pressure applying plate;
s7: the driving device drives the protective cover to rise and restore to the initial state.
3. The test block protection and cleaning method for the concrete compression strength detection test according to claim 2, characterized in that: the driving device comprises a first air cylinder which is horizontally arranged and does not move relative to the testing machine and a second air cylinder which is vertically arranged, the rod end of the first air cylinder is connected with a connecting frame, the second air cylinder is arranged on the connecting frame, and the rod end of the second air cylinder is connected with the protective cover; the protective cover can be driven by the second cylinder to lift up and down, and the first cylinder drives the protective cover and the second cylinder to move horizontally.
4. The test block protection and cleaning method for the concrete compression strength detection test according to claim 3, characterized in that: the specific working process of the step S4 is as follows:
s41: driving the pressing plate to move downwards by the driving cylinder, pressing the test block to test the compressive strength until the test block is slowly crushed;
s42: when the concrete test block collapses separately, the driving cylinder stops working;
s43: corresponding data are obtained through a sensor, so that the maximum pressure resistance of the test block is measured;
s44: the crushed test block waste is shielded and limited in a space formed by the upper surface of the pressure bearing plate and the protective cover;
s45: after the test is finished, the driving cylinder drives the pressing plate to return.
5. The test block protection and cleaning method for the concrete compression strength detection test according to claim 3, characterized in that: the specific working process of the step S5 is as follows:
s51: a piston rod of the first air cylinder extends out to drive the protective cover to carry the test block waste materials to enter the material guide groove together;
s52: meanwhile, the cleaning device cleans the top surface of the bearing plate and cleans the slag on the bearing plate to the guide chute;
s53: the test block waste and the slag are dropped from the guide chute to the waste recovery device for centralized recovery and disposal.
6. The test block protection and cleaning device for the concrete compression strength detection test according to claim 2, 3, 4 or 5, characterized in that: the protective cover is of a cylindrical structure with openings at the upper end and the lower end, the protective cover can contain a concrete test block and a pressure applying plate, and the size of an inner cavity at the lower end of the protective cover is smaller than the size of the outline of the upper surface of the pressure bearing plate; the height of the protective cover is larger than or equal to that of the test block.
7. The test block protection and cleaning device for the concrete compression strength detection test according to claim 3, 4 or 5, characterized in that: the first air cylinder is connected to the air cylinder seat, guide seats are arranged on the two sides of the first air cylinder on the air cylinder seat respectively, and one end of a guide column in sliding fit with the guide seats is connected with the connecting frame.
8. The test block protection and cleaning method for the concrete compression strength detection test according to claim 7, characterized in that: the air cylinder support set up in the left side of testing machine, waste recovery device rather than set up in the right side of testing machine relatively, including baffle box and waste material transfer device, the one end of baffle box is connected with the right flank of bearing plate, the testing machine is kept away from to the other end slope downwards, waste material transfer device is located the lower part of baffle box.
9. The test block protection and cleaning method for the concrete compression strength detection test according to claim 8, characterized in that: the protective cover is of a rectangular tubular structure with openings at the upper end and the lower end, noise-reducing wear-resistant strips are arranged at the lower parts of two side edges of the lower end of the protective cover, and the width of the protective cover is smaller than that of the material guide chute; the width of the guide chute is more than or equal to that of the bearing plate; the lower part of link is equipped with cleaning device, and cleaning device's length is more than or equal to the width of bearing plate, and cleaning device includes cleans scraper blade and brush cleaner.
10. The test block protection and cleaning method for the concrete compression strength detection test according to claim 8, characterized in that: the protective cover is of a rectangular tubular structure with openings at the upper end and the lower end, noise-reducing wear-resistant strips are arranged at the lower parts of two side edges of the lower end of the protective cover, a cleaning device is arranged at the left side edge of the lower end of the protective cover, the length of the cleaning device is more than or equal to the width of the pressure-bearing plate, and the cleaning device comprises a cleaning scraper and a cleaning brush; the width of the protective cover is smaller than that of the material guide groove; the width of the guide chute is more than or equal to the width of the bearing plate.
11. The test block protection and cleaning method for the concrete compression strength detection test according to claim 8, characterized in that: the protective cover is of a cylindrical tubular structure with openings at the upper end and the lower end, the lower end of the protective cover is provided with a noise-reducing wear-resistant strip, and the outer diameter of the protective cover is smaller than the width of the guide chute; the width of the guide chute is more than or equal to that of the bearing plate; the lower part of link is equipped with cleaning device, and cleaning device's length is more than or equal to the width of bearing plate, and cleaning device includes cleans scraper blade and brush cleaner.
12. The test block protection and cleaning method for the concrete compression strength detection test according to claim 8, characterized in that: the protective cover is of a cylindrical tubular structure with openings at the upper end and the lower end, a cleaning device is arranged at the left side edge of the lower end of the protective cover, and the cleaning device comprises a cleaning scraper and a cleaning brush; the outer diameter of the protective cover is smaller than the width of the guide chute; the width of the guide chute is more than or equal to the width of the bearing plate.
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Inventor after: Xu Zhaohui Inventor after: Dong Yandong Inventor after: Wang Kaiwen Inventor after: Cheng Yingchao Inventor after: Wang Ligang Inventor after: Qiao Dehui Inventor after: Zhang Lifan Inventor after: Liu Hongyan Inventor before: Dong Yandong Inventor before: Liu Hongyan Inventor before: Xu Hongyun Inventor before: Wang Kaiwen Inventor before: Cheng Yingchao Inventor before: Liu Shikang Inventor before: Wang Ligang Inventor before: Xu Zhaohui Inventor before: Sun Jinhu Inventor before: Qiao Dehui Inventor before: Zhang Lifan |
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Denomination of invention: Protective cleaning method for test blocks in concrete compressive strength testing Effective date of registration: 20231130 Granted publication date: 20230808 Pledgee: Postal Savings Bank of China Limited Jinan Licheng District Sub-branch Pledgor: JINAN TIANCHEN TESTING MACHINE MANUFACTURING Co.,Ltd. Registration number: Y2023980068538 |
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