Testing machine pressure plate cleaning device

Abstract

The utility model discloses a cleaning device for a pressure plate of a testing machine. Comprising a lower pressure plate used for placing a test block on the testing machine, an upper pressure plate used for extruding the test block, a waste cleaning device and a waste recovery device, and the waste cleaning device is driven by a horizontal driving device to enter the space between the lower pressure plate and the upper pressure plate and gradually leave the lower pressure plate and the upper pressure plate; and waste materials on the lower pressing disc and the upper pressing disc are removed to a waste material recovery device. The waste cleaning device comprises a material pushing plate, an upper brush and a lower brush, the upper brush and the lower brush are connected to the material pushing plate, the distance between the bristle end of the upper brush and the bristle end of the lower brush is larger than the distance between the upper pressing disc and the lower pressing disc, and the rod end of the air cylinder is connected with the material pushing plate. And an upper brush and a lower brush on the material pushing plate are driven to simultaneously remove test wastes adhered to the upper pressure plate and the lower pressure plate. And a scraping plate made of polyurethane materials is arranged on the pushing plate, and it can be guaranteed that waste materials on the pressing disc are removed in a hanging mode. The guide plates are arranged at the two ends of the pushing plate, and waste can be prevented from leaking out of the two sides of the pressing disc in the process.

Description

Technical Field

[0001] The utility model relates to a cleaning device, in particular to a pressure plate cleaning device used in a core sample compressive strength test detection process, belonging to the technical field of concrete testing equipment. Background Art

[0002] There are many methods for testing the compressive strength of concrete, including concrete cube test block test method, ultrasonic test method, rebound test method, core drilling test method, etc. Among them, the core drilling test method is to use a special drill to drill concrete core samples from structural concrete to test the concrete strength or observe the internal quality of concrete. Compared with other methods, it is accurate and intuitive. It is often used as an important means to evaluate the quality of solid concrete in structural engineering, and it is also a commonly used method in concrete quality identification and accident analysis. However, the reliability and authenticity of the test results obtained by the core drilling method are also affected by many factors, among which the influence of the core sample processing quality is the most prominent. Among them, the end surface flatness and verticality are the key factors affecting the accuracy of the sample results. For the end surface flatness, when the surface of the two ends of the core sample is uneven and does not meet the requirements of the specification, local compression or concentrated load will be generated during the compression of the specimen, so that the specimen may be damaged in advance, and the test result is less than the true strength; the concrete core sample is affected by various factors during sampling, and the flatness and verticality of the end surface of the concrete core sample cannot fully meet the detection requirements. Therefore, the end surface of the core sample needs to be mechanically polished or leveled before the test. In the prior art, the operation of mechanically grinding the end face directly places high demands on the machining accuracy of the grinding equipment and the technical ability and proficiency of the test personnel. The end face of the core sample is usually processed by leveling. The current regulations "Technical Regulations for Testing the Compressive Strength of Concrete by Core Drilling Method" (CECS03:2007) require that the end face of the specimen be ground on a grinder or the end face of the core be leveled with epoxy putty or polymer cement mortar to ensure that the end face of the core sample is well combined with the upper and lower platens of the testing machine. However, after the test of the core sample with the end face leveled, the test waste is easy to adhere to the upper and lower platens. In the prior art, there is generally only an automatic cleaning device for the lower platen, and the waste adhering to the upper platen needs to be cleaned manually. If the cleaning is not timely, it will undoubtedly affect the test of the next sample. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a testing machine pressure plate cleaning device to solve the problems existing in the background technology.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0005] A testing machine platen cleaning device comprises a lower platen for placing a test block on the testing machine, an upper platen for extruding the test block, a waste cleaning device and a waste recovery device, wherein the waste cleaning device is driven by a horizontal driving device to enter between the lower platen and the upper platen, and gradually leave the lower platen and the upper platen to remove the waste on the lower platen and the upper platen to the waste recovery device.

[0006] In the above-mentioned testing machine pressure plate cleaning device, the horizontal driving device is a cylinder that has no relative motion with the testing machine, and a push plate is connected to the rod end of the cylinder; an upper brush and a lower brush are connected to the push plate, and the bristles of the upper brush and the lower brush point to the upper pressure plate and the lower pressure plate respectively, and the distance between the bristle ends of the upper brush and the lower brush is greater than the distance between the upper pressure plate and the lower pressure plate.

[0007] By adopting the above technical solution, the distance between the ends of the bristles of the upper brush and the lower brush is greater than the distance between the upper platen and the lower platen, and the test waste adhering to the upper platen and the lower platen can be removed at the same time.

[0008] In the above-mentioned testing machine pressure plate cleaning device, a scraper plate is provided on the push plate near the testing machine side, the scraper plate is made of polyurethane material, and the lower side of the scraper plate is against the upper surface of the lower pressure plate; the length of the scraper plate, the upper brush and the lower brush is greater than or equal to the width of the upper pressure plate and the lower pressure plate.

[0009] By adopting the above technical solution, a scraper plate made of polyurethane is provided on the push plate, which has moderate hardness and can ensure that the waste on the pressure plate is removed without damaging the surface of the pressure plate.

[0010] In the above-mentioned testing machine pressure plate cleaning device, a material guide plate is provided on the side of the push plate near the testing machine. There are two material guide plates, which are respectively arranged at the two ends of the push plate. The material guide plates extend toward the testing machine, and the distance between the opposite sides of the two material guide plates gradually increases as they move away from the push plate.

[0011] By adopting the above technical solution, guide plates are arranged at both ends of the push plate, which can prevent waste from leaking from both sides of the pressure plate during the waste cleaning process.

[0012] Furthermore, the cylinder is connected to a cylinder bracket, and guide sleeves are respectively provided on both sides of the cylinder on the cylinder bracket, and one end of a guide column slidably matched with the guide sleeve is connected to a push plate.

[0013] By adopting the above technical scheme, the horizontal driving device adopts a cylinder, which has high speed, high efficiency, relatively simple structure, and is easy to install, use and maintain; guide sleeves and guide pillars are arranged on both sides of the cylinder, and the guide pillars slide along the inner hole of the guide sleeve, which can increase the service life of the cylinder and ensure that the cylinder runs smoothly and thoroughly when driving the waste cleaning device to remove waste.

[0014] Furthermore, the cylinder support is arranged on the left side of the testing machine, and the waste recovery device is arranged on the right side of the testing machine opposite to the cylinder support, including a material guide trough and a waste transfer device, one end of the material guide trough is connected to the right side of the lower platen, and the other end is obliquely downward away from the testing machine, and the waste transfer device is located at the bottom of the material guide trough. The width of the material guide trough is greater than or equal to the width of the lower platen.

[0015] By adopting the above technical scheme, the test waste on the lower pressure plate is removed to the material guide trough and slides into the waste transfer device along the material guide trough. The waste transfer device can use a waste box or a waste conveyor belt. When the waste box is full, the debris can be dumped at one time, or it can be transported to the outside of the test site by the waste conveyor belt for centralized disposal. Beneficial Effects

[0016] 1. The waste cleaning device includes a push plate and an upper brush and a lower brush connected to the push plate. The distance between the ends of the bristles of the upper brush and the lower brush is greater than the distance between the upper platen and the lower platen. The rod end of the cylinder is connected to the push plate, driving the upper brush and the lower brush on the push plate to simultaneously remove the test waste adhered to the upper platen and the lower platen.

[0017] 2. The push plate is equipped with a scraper plate made of polyurethane material with moderate hardness, which can ensure that the waste on the pressure plate is removed without damaging the surface of the pressure plate.

[0018] 3. Guide plates are set at both ends of the push plate to prevent waste from leaking from both sides of the pressure plate during the waste cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the utility model.

[0020] Figure 2 It is a partially enlarged schematic diagram of the utility model.

[0021] Figure 3 It is a front schematic diagram of the utility model.

[0022] Figure 4 It is a rear schematic diagram of the utility model.

[0023] Figure 5 , Figure 6 This is a schematic diagram of the connection between the utility model and the testing machine

[0024] In the figure: 1 base, 2 lower pressure plate, 3 cylinder bracket, 4 cylinder, 5 driving cylinder, 6 upper pressure plate, 7 guide trough, 8 guide sleeve, 9 guide column, 10 push plate, 11 guide plate, 12 scraper plate, 13 upper brush, 14 lower brush, 15 crossbeam, 16 column, 17 test block. DETAILED DESCRIPTION

[0025] In order to clearly illustrate the technical features of the present invention, the present invention is further described below through non-limiting embodiments in conjunction with the accompanying drawings.

[0026] The front, rear, left and right directions described in the present invention are described based on the front, rear, left and right directions shown in the accompanying drawings. For ease of description, only the parts related to the embodiments of the present invention are shown.

[0027] Please refer to Figures 1 to 6 , a testing machine platen cleaning device, the testing machine used in the test includes a base 1, a crossbeam 15 connected to the top of the base 1 through a column 16, a lower platen 2 arranged on the base 1, an upper platen 6 and a driving cylinder 5 for driving the upper platen 6 to rise and fall in a vertical direction are movably arranged on the crossbeam 15, the lower platen 2 is used to place a test block 17, and the upper platen 6 is driven by the driving cylinder 5 to squeeze the test block 17. This embodiment also includes a waste cleaning device and a waste recovery device, the waste cleaning device is driven by a horizontal driving device to enter between the lower platen 2 and the upper platen 6, and gradually leave the lower platen 2 and the upper platen 6, and remove the waste on the lower platen 2 and the upper platen 6 to the waste recovery device.

[0028] Specifically, the horizontal driving device is a cylinder 4 that has no relative motion with the testing machine, and a push plate 10 is connected to the rod end of the cylinder 4; an upper brush 13 and a lower brush 14 are connected to the push plate 10, and the bristles of the upper brush 13 and the lower brush 14 point to the upper pressure plate 6 and the lower pressure plate 2 respectively, and the distance between the bristle ends of the upper brush 13 and the lower brush 14 is greater than the distance between the upper pressure plate 6 and the lower pressure plate 2.

[0029] A scraper plate 12 is provided on the push plate 10, near the side of the testing machine. The scraper plate 12 is made of polyurethane material, and the lower side of the scraper plate 12 is against the upper surface of the lower pressure plate 2; the length of the scraper plate 12, the upper brush 13, and the lower brush 14 is greater than or equal to the width of the upper pressure plate 6 and the lower pressure plate 2.

[0030] A material guide plate 11 is also provided on the push plate 10, near the side of the testing machine. There are two material guide plates 11, which are respectively arranged at both ends of the push plate 10. The material guide plates 11 extend toward the testing machine, and the distance between the opposite sides of the two material guide plates 11 gradually increases as they move away from the push plate 10.

[0031] The cylinder 4 is connected to the cylinder bracket 3, and guide sleeves 8 are respectively provided on both sides of the cylinder 4 on the cylinder bracket 3. The guide sleeves 8 are provided with guide columns 9 that slide therewith. One end of the guide column 9 passes through the inner hole of the guide sleeve 8, and the other end is connected to the push plate 10.

[0032] In this embodiment, the cylinder bracket 3 is fixed to the left side of the test machine base 1, and can also be connected to the foundation. The waste recovery device is arranged on the right side of the test machine opposite to it, and includes a material guide trough 7 and a waste transfer device. One end of the material guide trough 7 is connected to the right side of the lower platen 2, and the other end is inclined downward away from the test machine. The width of the material guide trough 7 is greater than or equal to the width of the lower platen 2. The waste transfer device is located at the lower part of the material guide trough 7. In this embodiment, the waste transfer device adopts a waste box (not shown in the figure).

[0033] The working process of this embodiment is as follows:

[0034] (1) Initial state: the upper pressure plate 6 is raised;

[0035] (2) The automatic loading device pushes the test block 17 onto the lower pressing plate 2;

[0036] (3) The pressure testing machine is started, and the driving cylinder 5 drives the upper pressure plate 6 to move downward to apply pressure to the test block 17 until the test block 17 is slowly crushed; when the test block 17 collapses, the driving cylinder 5 stops working, and the corresponding data is obtained through the sensor, thereby measuring the maximum compressive capacity of the test block 17;

[0037] (4) After the test is completed, the drive cylinder 5 drives the upper pressure plate 6 to rise;

[0038] (5) The piston rod of the air cylinder 4 extends, driving the push plate 10 to push the waste test block into the guide trough 7. At the same time, the cleaning device cleans the top surface of the upper platen 6 and the lower platen 2. The waste test block and debris slide from the guide trough 7 to the waste recovery device for centralized recovery and disposal;

[0039] (6) The piston rod of cylinder 4 retracts and returns to its initial state;

[0040] (7) Repeat steps (2) to (6) to test the next test block.

[0041] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "left", "right", "front", "back", "up", "down", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. The above terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0043] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0044] The implementation methods listed above are only for the purpose of understanding the present invention and are not limitations on the technical solutions described in the present invention. Ordinary technicians in the relevant fields can make various changes or deformations based on the technical solutions described in the claims. All equivalent changes or deformations should be included in the scope of protection of the claims of the present invention.

Claims

1. A testing machine platen cleaning device, comprising a lower platen for placing a test block on the testing machine, an upper platen for squeezing the test block, and a waste cleaning device and a waste recovery device, characterized in that: The waste cleaning device is driven by the horizontal driving device to enter between the lower platen and the upper platen, and gradually leave the lower platen and the upper platen, and remove the waste on the lower platen and the upper platen to the waste recovery device; The horizontal driving device is a cylinder that has no relative motion with the testing machine, and a push plate is connected to the rod end of the cylinder; an upper brush and a lower brush are connected to the push plate, and the bristles of the upper brush and the lower brush point to the upper pressure plate and the lower pressure plate respectively, and the distance between the ends of the bristles of the upper brush and the lower brush is greater than the distance between the upper pressure plate and the lower pressure plate.

2. The testing machine platen cleaning device according to claim 1, characterized in that: A scraper plate is provided on the push plate near the testing machine. The scraper plate is made of polyurethane material, and the lower side of the scraper plate abuts against the upper surface of the lower pressure plate. The length of the scraper plate, the upper brush and the lower brush is greater than or equal to the width of the upper pressure plate and the lower pressure plate.

3. The testing machine pressure plate cleaning device according to claim 2, characterized in that: A material guide plate is provided on the side of the push plate near the testing machine. There are two material guide plates, which are respectively arranged at both ends of the push plate. The material guide plates extend toward the testing machine, and the distance between the opposite sides of the two material guide plates gradually increases as they move away from the push plate.

4. The testing machine platen cleaning device according to claim 1, 2 or 3, characterized in that: The cylinder is connected to a cylinder bracket, and guide sleeves are respectively arranged on both sides of the cylinder on the cylinder bracket, and one end of a guide column which is slidably matched with the guide sleeve is connected to a push plate.

5. The testing machine pressure plate cleaning device according to claim 4, characterized in that: The cylinder bracket is arranged on the left side of the testing machine, and the waste recovery device is arranged on the right side of the testing machine opposite to it, including a material guide trough and a waste transfer device. One end of the material guide trough is connected to the right side surface of the lower pressure plate, and the other end is inclined downward away from the testing machine. The waste transfer device is located at the lower part of the material guide trough.

6. The testing machine pressure plate cleaning device according to claim 5, characterized in that: The width of the material guide trough is greater than or equal to the width of the lower pressure plate.

Images