UHPC cement setting time detection equipment

Abstract

The utility model belongs to the technical field of cement detection, particularly relates to UHPC (Ultra High Performance Concrete) cement setting time detection equipment, and provides the following scheme aiming at the problem that an existing UHPC cement setting time detection equipment does not have an automatic test needle cleaning function: the UHPC cement setting time detection equipment comprises a base and a detection assembly, according to the cement sample coagulation testing device, the first cantilever can move up and down through the motor, the sliding rod is fixed through the electromagnet, the position is calculated through the displacement sensor, the testing process can be automated, manpower is saved, and the working efficiency is improved; the air cylinder is utilized to enable the two wiping blocks to clamp the test needle, the sponge blocks on the two wiping blocks wipe the test needle when the test needle which is tested moves up and down, automatic cleaning of the test needle is completed, manual cleaning is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement detection, in particular to a UHPC cement setting time detection device. Background Art

[0002] Cement is an important cementitious material, widely used in civil construction, water conservancy, national defense and other projects. Different types and batches of cement have different properties. Different cements have corresponding setting times. Its setting time is directly related to the control of construction time and the choice of construction methods. Therefore, it is very important to test the setting time of cement. Traditional testing equipment uses a test needle to sink freely into cement samples at different time periods, and judges the setting time of cement according to the different sinking depths.

[0003] The cement remaining on the test needle after each test will not only affect the next test but also make the test needle unusable due to the solidification of the cement. Therefore, it needs to be cleaned manually after each test, which is time-consuming and labor-intensive. The existing equipment does not have an automatic cleaning function for the test needle. Therefore, we proposed a UHPC cement setting time detection device to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to solve the defect that there is no automatic cleaning function for the test needle in the prior art, and proposes a UHPC cement setting time detection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A UHPC cement setting time detection device comprises a base, a bracket is fixedly connected to the top of the base, and the UHPC cement setting time detection device also comprises:

[0007] A detection component is arranged above the base and is used to perform a setting test on the cement sample;

[0008] A moving component is arranged on the bracket, and is used to enable the detection component to move automatically to realize automatic operation;

[0009] A cleaning component is arranged on the top of the base and is used for cleaning the components of the test component.

[0010] In a possible design, the moving component includes a groove, which is opened on one side of the bracket, and a first cantilever is slidably connected inside the groove. The bottom inner wall of the groove and the top inner wall of the groove are rotatably connected with the same threaded rod, the threaded rod passes through the first cantilever and is threadedly connected to the first cantilever, the top of the threaded rod passes through the top of the bracket and extends to the outside, the top of the bracket is fixedly connected to a motor, and the output end of the motor is fixedly connected to one end of the threaded rod.

[0011] In a possible design, the test assembly includes a sliding rod, a first displacement sensor is fixedly connected to the bottom of the first cantilever, an electromagnet is fixedly connected to the bottom of the first cantilever located on one side of the first displacement sensor, an iron sheet is fixedly provided on the top of the sliding rod, a test needle is threadedly connected to the bottom of the sliding rod, a second cantilever is fixedly connected to one side of the bracket, the second cantilever is located below the bracket, a through hole is opened on the second cantilever, the sliding rod passes through the through hole and extends to the bottom of the second cantilever, and the top of the base is fixedly connected to the second displacement sensor.

[0012] In a possible design, the bottom of the second cantilever is located below the through hole and is fixedly connected to a limiting tube, and the limiting tube is used to limit the position of the sliding rod when it is in free fall.

[0013] In one possible design, the cleaning assembly includes a cylinder, which is arranged on the top of the base, and the output end of the cylinder is fixedly connected to a fixed block, both ends of the fixed block are rotatably connected to a first rotating plate, and the two first rotating plates are rotatably connected to a second rotating plate, and the top of the base is symmetrically fixedly connected to two support columns, which are respectively rotatably connected to the corresponding two second rotating plates, and one end of the two second rotating plates is fixedly connected to a wiping block.

[0014] In a possible design, a soft, water-absorbing sponge block is fixedly connected to one side of the two wiping blocks that are close to each other, and the sponge block is used to clean the test needle.

[0015] In the present application, the device is first placed stably, and then the sliding rod in contact with the top of the base is moved upward, and then the test needle is installed at the bottom of the sliding rod, and then the test needle is placed after lightly contacting the top of the base, and then the motor is started, and the motor drives the threaded rod to rotate, so that the first cantilever on the threaded rod moves downward, and then the distance between the electromagnet under the first cantilever and the top of the sliding rod is calculated by the first displacement sensor, so that the electromagnet can contact the sliding rod, and then the motor stops starting, and then the iron sheet on the sliding rod is adsorbed by the electromagnet to fix the sliding rod, and then the motor is started again, and the motor rotates in the opposite direction to drive the first cantilever to move upward to the highest point and then stop. The test mainly moves the test pointer to a specified height and then makes a free fall;

[0016] Then, the cement sample is placed on the base, and the cement sample is below the test needle. Then, the motor continues to start, driving the first cantilever downward, so that the sliding rod adsorbed on the first cantilever moves downward. At the same time, the second displacement sensor on the base is used to determine that the test needle can slightly contact the cement surface, and then the motor stops working. At the same time, the first displacement sensor records the current first cantilever position height A1. At this time, the test needle is suspended above the cement sample by the magnetic force of the electromagnet. Then, the electromagnet is powered off to make the electromagnet lose its magnetic force, and the sliding rod makes a free fall to make the test needle sink into the cement sample. At the same time, the limit tube below the first cantilever limits the position of the sliding rod to prevent the sliding rod from falling and shifting. After the test needle stops sinking, the motor is started to drive the first cantilever downward until the electromagnet contacts the sliding rod and stops. At this time, the first cantilever position height A2 is recorded. It can be seen that the sinking height of the test needle is: A1-A2. The coagulation state of the cement sample is judged by the calculated sinking height.

[0017] Then, the motor continues to start, driving the first cantilever to move upward in the reverse direction. At this time, the cylinder starts, and the cylinder drives the two first rotating plates to move. The two first rotating plates respectively drive the two second rotating plates to approach each other, so that the two wiping blocks on the two second rotating plates clamp the test needle, and the soft sponge block arranged on the side where the two wiping blocks are close to each other fits the test needle, and the first cantilever moves upward to make the test needle fitted with the sponge block rub on the sponge block to clean the test needle.

[0018] Beneficial effects:

[0019] In the utility model, the UHPC cement setting time detection device is provided with a motor so that the first cantilever can move up and down, an electromagnet is used to fix the sliding rod, and a displacement sensor is used to calculate the position, so that the test process can be automated, manpower is saved, and work efficiency is improved;

[0020] In the utility model, the UHPC cement setting time detection device drives two wiping blocks on two second rotating plates to clamp the test needle through the provided cylinder, and uses the sponge blocks on the two wiping blocks to wipe the test needle when the tested test needle moves up and down, thereby completing the automatic cleaning of the test needle, saving manpower cleaning, and improving work efficiency;

[0021] In the utility model, a motor is provided to enable the first cantilever to move up and down, an electromagnet is used to fix the sliding rod, and a displacement sensor is used to calculate the position, so that the test process can be automated, manpower is saved, and work efficiency is improved. A cylinder is used to clamp the test needle with two wiping blocks, and the sponge blocks on the two wiping blocks wipe the test needle when the test needle moves up and down after the test is completed, so that the test needle is automatically cleaned, manpower is saved for cleaning, and work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a UHPC cement setting time detection device proposed in the utility model;

[0023] Figure 2 This is a partial three-dimensional structural schematic diagram of a UHPC cement setting time detection device proposed by the utility model;

[0024] Figure 3 This is a three-dimensional structural schematic diagram of a cleaning component of a UHPC cement setting time detection device proposed in the utility model.

[0025] In the figure: 1. base; 2. bracket; 201. groove; 202. threaded rod; 203. motor; 3. first cantilever; 301. first displacement sensor; 302. electromagnet; 4. second cantilever; 401. limit tube; 5. sliding rod; 501. test needle; 6. cylinder; 601. fixed block; 602. first rotating plate; 603. support column; 604. second rotating plate; 7. wiping block; 8. second displacement sensor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] Reference Figure 1-3 A setting time detection device includes a base 1, a bracket 2 is fixedly connected to the top of the base 1, and the UHPC cement setting time detection device also includes a detection component arranged above the base 1, the detection component is used to perform a setting test on the cement sample, a moving component is arranged on the bracket 2, the moving component is used to enable the detection component to move automatically to realize automatic operation, and a cleaning component is fixedly connected to the top of the base 1, and the cleaning component is used to clean the components of the test component.

[0029] The moving component includes a groove 201, which is opened on one side of the bracket 2. The first cantilever 3 is slidably connected inside the groove 201. The bottom inner wall of the groove 201 and the top inner wall of the groove 201 are rotatably connected with the same threaded rod 202. The threaded rod 202 passes through the first cantilever 3 and is threadedly connected with the first cantilever 3. The top of the threaded rod 202 passes through the top of the bracket 2 and extends to the outside. A motor 203 is fixedly connected to the top of the bracket 2. The output end of the motor 203 is fixedly connected to one end of the threaded rod 202. The threaded rod 202 is driven to rotate by the motor 203, so that the first cantilever 3 on the threaded rod 202 can move up and down. After each test, the test component can automatically return to its position, saving manpower operation and improving work efficiency.

[0030] The test assembly includes a sliding rod 5, a first displacement sensor 301 is fixedly connected to the bottom of the first cantilever 3, an electromagnet 302 is fixedly connected to the bottom of the first cantilever 3 on one side of the first displacement sensor 301, an iron sheet is fixedly arranged on the top of the sliding rod 5, the electromagnet 302 is connected to the iron sheet by magnetic adsorption, a test needle 501 is threadedly connected to the bottom of the sliding rod 5, a second cantilever 4 is fixedly connected to one side of the bracket 2, the second cantilever 4 is located below the bracket 2, a through hole is provided on the second cantilever 4, the sliding rod 5 passes through the through hole and extends to the bottom of the second cantilever 4, and a second displacement sensor 8 is fixedly connected to the top of the base 1. The first displacement sensor 301 is set to record the distance of each free fall movement of the sliding rod 5, so that the depth of the test needle 501 on the sliding rod 5 sinking to the cement sample can be accurately calculated, thereby improving the accuracy of the test structure. At the same time, the second displacement sensor 8 can be used to accurately control the distance between the test needle 501 and the cement sample during the test, thereby improving the accuracy of the test during the free fall test of the sliding rod 5.

[0031] The cleaning assembly includes a cylinder 6, which is arranged on the top of the base 1. The output end of the cylinder 6 is fixedly connected to a fixed block 601. Both ends of the fixed block 601 are rotatably connected to a first rotating plate 602. The two first rotating plates 602 are rotatably connected to a second rotating plate 604. The top of the base 1 is symmetrically fixedly connected to two supporting columns 603. The two supporting columns 603 are rotatably connected to the corresponding two second rotating plates 604, respectively. One end of the two second rotating plates 604 is fixedly connected to a wiping block 7. The two wiping blocks 7 are driven by the cylinder 6. When the test needle 501 rises after the test is completed, the test needle 501 is clamped, and the test needle 501 is cleaned by utilizing the friction generated by the test needle 501 and the two wiping blocks 7 when the test needle 501 rises.

[0032] The present application can be used in the field of cement detection technology, and can also be used in other fields applicable to the present application.

[0033] Example 2

[0034] refer to Figure 1-2 , improved on the basis of embodiment 1: a UHPC cement setting time detection device, which is applied to the field of cement detection technology, the bottom of the second cantilever 4 is located below the through hole and is fixedly connected to a limiting tube 401, and the limiting tube 401 is used to limit the position of the sliding rod 5 when it is in free fall. The limiting tube 401 is used to limit the position of the sliding rod 5 when it is in free fall, so as to avoid the free fall of the sliding rod 5 affecting the test result.

[0035] The two wiping blocks 7 are fixedly connected to a soft water-absorbing sponge block on one side close to each other. The sponge block is used to clean the test needle 501. The soft water-absorbing sponge block can not only wipe the residual cement on the test needle 501, but also play a buffering role during clamping to avoid damage to 501 during clamping.

[0036] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 203 and the cylinder 6 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A UHPC cement setting time detection device, comprising a base (1), the top of which is fixedly connected to a bracket (2), characterized in that: The UHPC cement setting time detection equipment also includes: A detection component, which is arranged above the base (1) and is used to perform a setting test on a cement sample; A moving component, the moving component is arranged on the bracket (2), and the moving component is used to enable the detection component to move automatically to achieve automatic operation; A cleaning component is arranged on the top of the base (1) and is used to clean the components of the test component.

2. A UHPC cement setting time detection device according to claim 1, characterized in that: The moving component comprises a groove (201), the groove (201) is provided on one side of the bracket (2), a first cantilever (3) is slidably connected inside the groove (201), a bottom inner wall of the groove (201) and a top inner wall of the groove (201) are rotatably connected to the same threaded rod (202), the threaded rod (202) passes through the first cantilever (3) and is threadedly connected to the first cantilever (3), the top of the threaded rod (202) passes through the top of the bracket (2) and extends to the outside, a motor (203) is fixedly connected to the top of the bracket (2), and an output end of the motor (203) is fixedly connected to one end of the threaded rod (202).

3. A UHPC cement setting time detection device according to claim 2, characterized in that: The test assembly comprises a sliding rod (5), a first displacement sensor (301) is fixedly connected to the bottom of the first cantilever (3), an electromagnet (302) is fixedly connected to the bottom of the first cantilever (3) at one side of the first displacement sensor (301), an iron sheet is fixedly arranged on the top of the sliding rod (5), the electromagnet (302) and the iron sheet are connected by magnetic adsorption, a test needle (501) is threadedly connected to the bottom of the sliding rod (5), a second cantilever (4) is fixedly connected to one side of the bracket (2), the second cantilever (4) is located below the bracket (2), a through hole is provided on the second cantilever (4), the sliding rod (5) passes through the through hole and extends to the bottom of the second cantilever (4), and a second displacement sensor (8) is fixedly connected to the top of the base (1).

4. A UHPC cement setting time detection device according to claim 3, characterized in that: The bottom of the second cantilever (4) is located below the through hole and is fixedly connected to a limiting tube (401), and the limiting tube (401) is used to limit the position of the sliding rod (5) when it is in free fall.

5. A UHPC cement setting time detection device according to claim 3, characterized in that: The cleaning assembly comprises a cylinder (6), which is arranged on the top of the base (1); the output end of the cylinder (6) is fixedly connected to a fixed block (601); both ends of the fixed block (601) are rotatably connected to a first rotating plate (602); the two first rotating plates (602) are rotatably connected to a second rotating plate (604); the top of the base (1) is symmetrically fixedly connected to two supporting columns (603); the two supporting columns (603) are respectively rotatably connected to two corresponding second rotating plates (604); and one end of each of the two second rotating plates (604) is fixedly connected to a wiping block (7).

6. A UHPC cement setting time detection device according to claim 5, characterized in that: A soft, water-absorbing sponge block is fixedly connected to the mutually adjacent sides of the two wiping blocks (7), and the sponge block is used to clean the test needle (501).

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