An environmentally friendly mortar consistency testing device

Abstract

This invention relates to the field of mortar testing, specifically to a mortar consistency testing device for environmentally friendly mortar. It includes a lead screw slide with its output end fixed to a worktable. A cover is located beside the worktable, and a cone-shaped device coaxially and detachably holds the mortar. A vibration mechanism is located at the lower end of the cover. An infrared sensor is fixedly connected to the lead screw slide near the cover, and the infrared sensor is electrically connected to a controller. An electromagnet is fixedly connected to the lead screw slide below the sensor. A support is fixedly connected to the lead screw slide below the electromagnet, and an electric actuator is fixedly connected to the upper end of the support. A retaining ring is fixedly connected to the end of the support away from the lead screw slide, and a guide rod is coaxially connected to the retaining ring. A permanent magnet is fixedly connected to the upper end of the guide rod near the lead screw slide, and a cone-shaped device coaxially with the cone-shaped device is fixed to the lower end of the guide rod. During testing, the cone is filled with mortar and fixed coaxially with the cover cylinder. The vibration mechanism disperses the mortar. The screw slide and electric actuator adjust the position of the cone, and the electromagnet attracts the guide rod. After the power is cut off, the cone falls, the infrared sensor detects the displacement and transmits it to the controller to calculate the consistency, thus achieving accurate testing.

Description

Technical Field

[0001] This invention relates to the field of mortar testing, specifically to an environmentally friendly mortar consistency testing device. Background Technology

[0002] In the field of mortar performance testing, mortar consistency is a key indicator for evaluating the construction and performance of mortar. Existing mortar consistency testing devices have been widely used in the industry, and their basic testing process is roughly as follows: The operator first fills the cone with the mortar to be tested and shakes the cone manually to disperse the mortar evenly inside. Then, the cone is placed on the workbench and adjusted to be coaxial with the mortar test cone. Next, the height of the mortar test cone is manually adjusted so that the cone tip is level with the mortar surface. At the same time, the scale is calibrated to zero using the turntable and adjusting screws above the workbench. Then, the operator holds the upper support rod of the test cone with one hand and loosens the fixing screw with the other hand to let the test cone hang naturally. After 15 seconds, the screw is tightened to fix the test cone to avoid vibration interference. Finally, the scale is rotated to make the pressure rod press against the test cone support rod, and the consistency data is obtained by observing the pointer pointing to the scale.

[0003] However, existing testing devices still have many limitations in practical applications: First, mortar dispersion and initial positioning rely on manual operation. The force and frequency of manually shaking the cone lack a unified standard, leading to individual differences in mortar density and uniformity. Furthermore, cone height adjustment and zeroing are easily affected by visual bias and hand tremors, causing inconsistent testing benchmarks and introducing systematic errors at the source. Second, the cone release and fixing processes are not standardized. Manually tightening the screws for release cannot guarantee a consistent initial state of the cone during each free fall, and the timeliness of manual fixing after 15 seconds is insufficient. External vibrations or differences in fixing force can cause the cone to sink further, increasing measurement deviations. In addition, manual reading and data management are inefficient. Reading results are greatly affected by visual angle and subjective judgment, and data requires manual recording, posing risks of recording errors and loss. Automated analysis and traceability are difficult to achieve, failing to meet the accuracy and standardization requirements of modern testing.

[0004] Therefore, it is necessary to design an environmentally friendly mortar consistency testing device. Summary of the Invention

[0005] Therefore, it is necessary to provide an environmentally friendly mortar consistency testing device to address the existing technical problems.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0007] An environmentally friendly mortar consistency testing device includes:

[0008] The output end is fixed to the upper part of the worktable with a screw slide. A cover is provided on the side of the worktable. A cone that is loaded with mortar is detachably installed on the cover along the same axis. An oscillation mechanism that pushes the cone to vibrate is provided at the lower end of the cover.

[0009] An infrared sensor is fixedly connected to the side of the lead screw slide near the cover. The infrared sensor is electrically connected to the controller. An electromagnet is fixedly connected to the lead screw slide below the infrared sensor. A support is fixedly connected to the lead screw slide below the electromagnet. An electric push rod is fixedly connected to the upper end of the support.

[0010] A retaining ring is fixed to the end of the support away from the lead screw slide. The retaining ring is coaxially keyed to a guide rod. A permanent magnet is fixed to the upper end of the guide rod near the lead screw slide, and a cone is fixed to the lower end. The cone and the cone cylinder are coaxially arranged.

[0011] Furthermore, a pad is fixedly connected to the upper end of the guide rod, and a data processing module is fixedly connected to the lead screw slide at the lower end of the infrared sensor.

[0012] The data processing module is electrically connected to the infrared sensor and the controller respectively. The data processing module receives the raw signal of the guide rod descent height collected by the infrared sensor, and generates accurate height data after filtering, amplification and analog-to-digital conversion, and then transmits it to the controller.

[0013] Furthermore, a PWM pulse control module is provided at the upper end of the electromagnet, and the PWM pulse control module is electrically connected to the electromagnet and the controller respectively;

[0014] The PWM pulse control module is used to receive on / off commands from the controller and control the excitation intensity of the electromagnet by adjusting the pulse duty cycle, so as to achieve smooth de-adhesion when the guide rod is released.

[0015] Furthermore, a positioning surface is formed on the side of the guide rod near the electric actuator, and a rubber gasket is fixed to the output end of the electric actuator. The rubber gasket abuts against the positioning surface after the electric actuator is started.

[0016] Furthermore, the guide rod is arrayed with three guide grooves along the circumferential direction, and the retaining ring is fixed with three guide wedges at equal angles along the circumferential direction. The three guide wedges are slidably connected to the three guide grooves respectively.

[0017] Furthermore, the upper end of the cover is fixedly connected with guide shafts at equal angles along the circumferential direction, and the cone is formed with guide holes at equal angles along the circumferential direction. When the cone is coaxially installed to the middle of the cover, the guide holes and guide shafts are slidably connected coaxially.

[0018] Furthermore, a recessed platform is slidably provided on the shroud along the same axis as the cone cylinder. The recessed platform has a groove in the middle, and the outline of the groove matches the shape of the lower end of the cone cylinder.

[0019] Furthermore, the oscillation mechanism includes a cam rotatably disposed at the lower end of the concave platform, the outer side of the cam abutting against the lower end of the concave platform, a secondary bevel gear rotatably connected to the side of the cam on the same axis, and a main bevel gear rotatably disposed at the lower end of the secondary bevel gear.

[0020] The main bevel gear is coaxially fixed to the auxiliary pulley, and the main pulley is rotatably arranged on the side of the cover cylinder. The main pulley is connected to the auxiliary pulley for transmission via a belt.

[0021] Furthermore, a throttle is rotatably connected to the side of the cover, a gear is fixedly connected to the throttle along the same axis, a rack is provided next to the gear and slidably connected to the cover, a ratchet is fixedly connected to the rack, and the output end of the ratchet is fixedly connected to the main pulley along the same axis.

[0022] Furthermore, a top cover is coaxially fixed to the side of the cover cylinder near the center, and limit rods are fixed to the top cover at equal angles along the circumferential direction. The lower end of the limit rods is slidably connected to the concave platform.

[0023] A spring is fitted around the limit rod. The upper end of the spring is fixed to the top cover, and the lower end is fixed to the recess.

[0024] The beneficial effects of this invention compared to the prior art are:

[0025] Firstly, this device achieves precise coaxiality between the cone and the cover by using a guide shaft and guide hole. The vibration mechanism replaces manual shaking to ensure uniform mortar dispersion. The screw slide and electric push rod work together to electrically adjust the initial position of the cone. Infrared sensors assist in positioning, eliminating the differences in force, frequency, and visual deviation caused by manual operation. This ensures that the benchmark conditions such as density and coaxiality are consistent for each test, reducing systematic errors from the source and improving test repeatability.

[0026] Secondly, this device uses a PWM pulse control module to adjust the excitation intensity of the electromagnet, so as to achieve smooth detachment of the guide rod and ensure that the initial state is consistent each time it is released. The guide groove and guide wedge work together to limit the radial displacement of the guide rod. The electric push rod works with the rubber pad to achieve stable positioning before release. No manual fixation is required during the detection process, which avoids the additional sinking of the cone caused by external vibration and the difference in fixing force, and significantly improves the detection accuracy.

[0027] Thirdly, this device is equipped with a data processing module to accurately process the detection signals. The controller automatically completes parameter calculations, replacing manual reading and recording. Data can be directly stored by the controller or transmitted to the terminal equipment, avoiding the risk of errors and loss from manual recording. It realizes automated analysis and traceability of detection data, meets the requirements of modern testing for efficiency and standardization, and reduces labor costs. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of an embodiment;

[0029] Figure 2 This is a side view of an embodiment;

[0030] Figure 3 yes Figure 2 A half-section of the plan;

[0031] Figure 4 yes Figure 3 Enlarged view of the structure at point A in the middle;

[0032] Figure 5 This is a three-quarters structural half-sectional view of the embodiment;

[0033] Figure 6 This is a bottom view of the three-dimensional structure of the cover in the embodiment;

[0034] Figure 7 yes Figure 6 Enlarged view of the structure at point B in the middle;

[0035] Figure 8 This is a three-dimensional structural diagram of the infrared sensor and the cone in the embodiment;

[0036] Figure 9 yes Figure 8 Enlarged view of the structure at point C;

[0037] Figure 10 yes Figure 8 Enlarged view of the structure at point D.

[0038] The numbers on the map are:

[0039] 1. Worktable; 2. Lead screw slide; 3. Infrared sensor; 4. Data processing module; 5. Electric actuator; 6. Electromagnet; 7. PWM pulse control module; 8. Cover; 9. Guide shaft; 10. Recess; 11. Top cover; 12. Cone; 13. Conical cylinder; 14. Rubber pad; 15. Guide rod; 16. Positioning surface; 17. Pad; 18. Guide groove; 19. Snap ring; 20. Guide wedge; 21. Permanent magnet; 22. Oscillating mechanism; 23. Throttle; 24. Gear; 25. Rack; 26. Rifling rod; 27. Main pulley; 28. Secondary pulley; 29. ​​Main bevel gear; 30. Secondary bevel gear; 31. Cam; 32. Limiting rod; 33. Spring. Detailed Implementation

[0040] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0041] refer to Figures 1 to 10 An environmentally friendly mortar consistency testing device includes:

[0042] The output end is fixedly connected to the upper end of the workbench 1. A cover 8 is provided on the side of the workbench 1. A cone 13 loaded with mortar is detachably provided on the coaxial axis of the cover 8. An oscillation mechanism 22 that pushes the cone 13 to vibrate is provided at the lower end of the cover 8.

[0043] An infrared sensor 3 is fixedly connected to the side of the lead screw slide 2 near the cover cylinder 8. The infrared sensor 3 is electrically connected to the controller. An electromagnet 6 is fixedly connected to the lead screw slide 2 below the infrared sensor 3. A support is fixedly connected to the lead screw slide 2 below the electromagnet 6. An electric push rod 5 is fixedly connected to the upper end of the support.

[0044] A retaining ring 19 is fixedly connected to the end of the support away from the lead screw slide 2. The retaining ring 19 is coaxially keyed to a guide rod 15. A permanent magnet 21 is fixedly connected to the upper end of the guide rod 15 near the lead screw slide 2, and a cone 12 is fixedly connected to the lower end. The cone 12 is coaxially arranged with the cone cylinder 13. When the electromagnet 6 is energized, it positions the permanent magnet 21 by magnetic force.

[0045] When the device is in operation, the operator loads the environmentally friendly mortar to be tested into the cone 13 and assembles and fixes the cone 13 and the cover 8 coaxially. The operator then activates the vibration mechanism 22, which vibrates the cone 13, causing the mortar inside to be evenly dispersed, ensuring consistent testing standards. The operator then adjusts the overall height of the infrared sensor 3, electromagnet 6, support, and other components using the lead screw slide 2 to ensure that the cone 12 and the mortar surface inside the cone 13 maintain a preset distance, and that the cone 12 and cone 13 remain coaxial.

[0046] Next, the electromagnet 6 is energized to generate magnetic force, attracting the permanent magnet 21 at the upper end of the guide rod 15, thus keeping the guide rod 15 and the cone 12 in a fixed state. The infrared sensor 3 is activated and establishes signal transmission with the controller, preparing to detect the descent height of the guide rod 15. When the detection conditions are ready, the electromagnet 6 is de-energized, the magnetic force disappears, and the guide rod 15 naturally droops along the axis of the retaining ring 19 under the action of gravity, causing the cone 12 to insert into the mortar inside the cone cylinder 13. During this process, the infrared sensor 3 detects the descent displacement of the guide rod 15 in real time and continuously transmits the detection signal to the controller. After receiving the signal, the controller calculates the relevant parameters of the mortar consistency, ultimately achieving accurate detection of the consistency of the environmentally friendly mortar.

[0047] To improve the accuracy of the detection signal, the following features were specifically designed:

[0048] like Figure 1As shown, a pad 17 is fixedly connected to the upper end of the guide rod 15, and a data processing module 4 is fixedly connected to the lead screw slide 2 at the lower end of the infrared sensor 3. The data processing module 4 is electrically connected to the infrared sensor 3 and the controller respectively. The data processing module 4 receives the original signal of the guide rod 15 descent height collected by the infrared sensor 3, and generates accurate height data after filtering, amplification and analog-to-digital conversion, and transmits it to the controller.

[0049] After the guide rod 15 descends with the cone 12, the infrared sensor 3 detects the height of the descent of the pad 17 (i.e., the height of the guide rod 15). The original detection signal is easily affected by interference factors such as vibration during device operation and electromagnetic interference in the environment. Direct transmission to the controller can easily lead to calculation deviations. However, the filtering function of the data processing module 4 can filter out noise interference, the amplification function can enhance the strength of weak signals, and the analog-to-digital conversion can convert the analog signal into a digital signal that the controller can accurately recognize, providing a highly reliable data foundation for subsequent consistency parameter calculations and solving the problem of manual reading being affected by visual angle and subjective judgment.

[0050] To eliminate errors caused by manual release, the following features are specifically designed:

[0051] like Figure 1 and Figure 9 As shown, a PWM pulse control module 7 is provided on the upper end of the electromagnet 6. The PWM pulse control module 7 is electrically connected to the electromagnet 6 and the controller respectively. The PWM pulse control module 7 is used to receive the on / off command issued by the controller, and the PWM pulse control module 7 controls the excitation intensity of the electromagnet 6 by adjusting the pulse duty cycle, so as to achieve smooth desorption when the guide rod 15 is released.

[0052] Traditional manual screw-tightening release methods cannot control the initial release state of the test cone. However, the PWM pulse control module 7 can precisely adjust the excitation intensity of the electromagnet 6 according to the testing requirements, so that the electromagnet 6 maintains a stable attraction force when attracting the guide rod 15, avoiding pre-displacement of the guide rod 15 due to uneven attraction force. During release, the magnetic force is gradually attenuated by adjusting the pulse duty cycle, ensuring that the guide rod 15 can start from the same stable state to fall freely each time, eliminating the initial state difference caused by manual release.

[0053] To achieve the clamping and positioning of the guide rod 15, the following features are specifically provided:

[0054] like Figure 10As shown, a positioning surface 16 is formed on the side of the guide rod 15 near the electric actuator 5. A rubber pad 14 is fixed to the output end of the electric actuator 5. The rubber pad 14 abuts against the positioning surface 16 after the electric actuator 5 is started. If the guide rod 15 deviates during the initial positioning and detection process, it will cause the coaxiality deviation between the cone 12 and the cone cylinder 13, affecting the detection results. After the electric actuator 5 is started, it pushes the rubber pad 14 to abut against the positioning surface 16, which can accurately fix the guide rod 15. The rubber pad 14 can buffer the impact force when it is pressed, avoiding vibration of the guide rod 15; at the same time, the friction of the rubber material can prevent the guide rod 15 from moving around in the initial stage of adsorption and falling. With the help of the PWM pulse control module 7, stable positioning before release is achieved, which solves the problems of insufficient timeliness of manual fixing and vibration interference.

[0055] To improve the stability of the guide rod 15's movement, the following features are specifically designed:

[0056] like Figure 10 As shown, the guide rod 15 is arranged with three guide grooves 18 in an array along the circumferential direction, and the retaining ring 19 is fixed with three guide wedges 20 at equal angles along the circumferential direction. The three guide wedges 20 are slidably connected to the three guide grooves 18 respectively.

[0057] Three guide grooves 18 arranged in a circular array cooperate with guide wedges 20 to form an all-round radial limiting structure, which can restrict all radial degrees of freedom of guide rod 15, ensuring that guide rod 15 can only move in a straight line along the axis of snap ring 19, so that cone 12 is always inserted into mortar in a vertical posture, avoiding measurement deviation caused by the tilt of cone 12, and further improving the consistency of detection benchmark.

[0058] To achieve coaxial alignment of the cone 13 and the cover 8, so that the cone 12 can stably fall into the mortar inside the cone 13 during the test, the following features are specifically provided:

[0059] like Figure 1 As shown, the upper end of the cover cylinder 8 is fixedly connected to the guide shaft 9 at equal angles along the circumferential direction, and the cone cylinder 13 is formed with guide holes at equal angles along the circumferential direction. When the cone cylinder 13 is installed coaxially to the middle of the cover cylinder 8, the guide holes and the guide shaft 9 are slidably connected coaxially.

[0060] Traditional manual adjustment of the coaxiality between the cone 13 and the test cone relies on visual judgment, which is prone to positioning deviations. The mating structure of the guide shaft 9 and the guide hole provides a clear positioning benchmark for the installation of the cone 13. The operator only needs to align the guide hole of the cone 13 with the guide shaft 9 of the cover 8 to complete the coaxiality setting of the two, without the need for repeated manual adjustments. The circumferential array distribution ensures the symmetry and stability of the positioning, ensuring that the cone 13 and the cone 12 remain coaxial after installation, eliminating systematic errors caused by coaxiality deviations during the installation process.

[0061] In order to load the lower end of the cone 13, the following features are specifically provided:

[0062] like Figure 3 and Figure 5 As shown, a recessed platform 10 is slidably mounted on the cover cylinder 8 along its coaxial axis. The recessed platform 10 is coaxially mounted with the cone cylinder 13, and a groove is formed in the middle of the recessed platform 10. The contour of the groove matches the shape of the lower end of the cone cylinder 13. The groove of the recessed platform 10 matches the shape of the lower end of the cone cylinder 13, which can accurately position and firmly clamp the cone cylinder 13, preventing the cone cylinder 13 from shifting or tilting during vibration. At the same time, the recessed platform 10 is slidably connected to the cover cylinder 8 along its coaxial axis, which can accurately transmit the vibration generated by the vibration mechanism 22 to the cone cylinder 13, so that the mortar in the cone cylinder 13 is evenly stressed, avoiding the difference in mortar density and uniformity caused by unstable support, and solving the problem of inconsistent force and frequency when manually shaking the cone cylinder 13.

[0063] To further elaborate on the specific structure of the oscillation mechanism 22, the following features were also included:

[0064] like Figure 1 , Figure 5 and Figure 7 As shown, the oscillation mechanism 22 includes a cam 31 rotatably disposed at the lower end of the recessed platform 10. The outer side of the cam 31 abuts against the lower end of the recessed platform 10. A secondary bevel gear 30 is rotatably connected to the side of the cam 31 along the same axis. A main bevel gear 29 is rotatably disposed at the lower end of the secondary bevel gear 30.

[0065] The main bevel gear 29 is coaxially fixed to the auxiliary pulley 28, and the main pulley 27 is rotatably arranged on the side of the cover cylinder 8. The main pulley 27 is connected to the auxiliary pulley 28 through a belt.

[0066] The transmission stability of the oscillation mechanism 22 directly affects the vibration effect of the cone 13, and thus the uniformity of mortar dispersion. This transmission structure drives the auxiliary pulley 28 to rotate via the belt through the main pulley 27, achieving stable long-distance power transmission; the meshing of the main bevel gear 29 and the auxiliary bevel gear 30 changes the direction of power transmission, converting the horizontal rotation into the vertical drive of the cam 31; the rotation of the cam 31 can drive the concave platform 10 to perform reciprocating lifting motion, providing stable vibration power for the cone 13, replacing the unstable operation of manual shaking.

[0067] In order to provide power for the rotation of cam 31, the following features are also provided:

[0068] like Figure 5 As shown in the figure, a handle 23 is rotatably connected to the side of the cover 8. A gear 24 is coaxially fixed to the handle 23. A rack 25 is slidably connected to the cover 8 on the side of the gear 24. A ratchet rod 26 is fixed to the rack 25. The output end of the ratchet rod 26 is coaxially fixed to the main pulley 27.

[0069] Different types of environmentally friendly mortars have different requirements for vibration dispersion, and manual shaking cannot adjust the vibration intensity. When the operator turns the handle 23, the gear 24 drives the rack 25 to move linearly. The crank lever 26 converts the linear displacement of the rack 25 into the rotational displacement of the main pulley 27, thereby adjusting the rotational frequency of the cam 31 and achieving precise adjustment of the vibration intensity and frequency of the cone 13. The structural design of the crank lever 26 ensures the smoothness of power transmission and avoids uneven vibration caused by speed fluctuations. At the same time, the operation of the handle 23 is convenient and labor-saving, improving the applicability of the device.

[0070] To enable the recessed platform 10 to reciprocate vertically, the following features are specifically designed:

[0071] like Figure 4 As shown, a top cover 11 is coaxially fixed to the side of the cover 8 near the center. The top cover 11 is fixed to a limit rod 32 at equal angles along the circumferential direction. The lower end of the limit rod 32 is slidably connected to the recess 10.

[0072] A spring 33 is sleeved on the outside of the limiting rod 32. The upper end of the spring 33 is fixedly connected to the top cover 11, and the lower end is fixedly connected to the recess 10.

[0073] The limiting rod 32 limits the lifting direction of the concave platform 10 to prevent the concave platform 10 from deviating during vibration; the spring 33 is compressed and stores elastic potential energy when the concave platform 10 rises. When the cam 31 rotates to the non-protruding end and contacts the concave platform 10, the spring 33 releases elastic potential energy to push the concave platform 10 to quickly reset, so that the concave platform 10 forms a stable reciprocating lifting motion, ensuring the uniformity and continuity of the vibration of the cone 13, and ensuring that the mortar can be fully and evenly dispersed.

[0074] The detailed working principle of this device is as follows: Before testing, the initial preparation of the device is completed. The operator first puts the environmentally friendly mortar to be tested into the cone 13, and then inserts the guide hole of the cone 13 into the guide shaft 9 at the upper end of the cover 8 so that the cone 13 and the cover 8 are coaxially assembled and fixed. The lower end of the cone 13 is embedded in the groove of the recess 10 to achieve stable positioning of the cone 13. Then, the operator rotates the handle 23 according to the type of mortar. The handle 23 drives the gear 24 to rotate, and the gear 24 drives the rack 25 to move linearly. This drives the main pulley 27 to rotate through the bolt 26. The main pulley 27 drives the auxiliary pulley 28 through the belt. The auxiliary pulley 28 drives the main bevel gear 29 to rotate. The main bevel gear 29 meshes and drives the auxiliary bevel gear 30 to rotate. The auxiliary bevel gear 30 drives the cam 31 to rotate. The rotation of the cam 31 pushes the concave platform 10 to rise along the limit rod 32. The spring 33 is compressed. When the cam 31 continues to rotate to the non-protruding end, the spring 33 resets and pulls the concave platform 10 to fall, forming the reciprocating up and down vibration of the concave platform 10, which drives the cone 13 to vibrate synchronously, so that the mortar in the cone 13 is evenly dispersed.

[0075] After the mortar is dispersed, the operator releases the throttle 23, and the controller sends a command to the lead screw slide 2. The lead screw slide 2 drives the infrared sensor 3, electromagnet 6, support, and other components to rise and fall as a whole. At the same time, the electric push rod 5 is activated, pushing the rubber pad 14 to abut against the positioning surface 16 of the guide rod 15. This, combined with the guide groove 18 on the guide rod 15 and the guide wedge 20 of the retaining ring 19, adjusts the initial position of the guide rod 15 and the cone 12, ensuring that the cone 12 and the mortar surface inside the cone cylinder 13 maintain a preset distance and are coaxial. Subsequently, the controller controls the PWM pulse control module 7 to energize the electromagnet 6 and generate a stable magnetic force, attracting the permanent magnet 21 at the upper end of the guide rod 15. At this time, the electric push rod 5 resets, and the guide rod 15 remains fixed under the attraction of the electromagnet 6. The infrared sensor 3 is activated and establishes signal transmission with the data processing module 4, which prepares for signal processing.

[0076] After the test is initiated, the controller sends a power-off command to the PWM pulse control module 7. The PWM pulse control module 7 adjusts the pulse duty cycle to smoothly attenuate the magnetic force of the electromagnet 6, thus achieving smooth detachment of the guide rod 15. Under the action of gravity, the guide rod 15 falls vertically along the mating direction of the guide groove 18 and the guide wedge 20, causing the cone 12 to insert into the mortar. During this process, the infrared sensor 3 collects the analog signal of the guide rod 15's descent height in real time and transmits it to the data processing module 4. The module generates a precise digital signal after filtering, amplification, and analog-to-digital conversion, which is then transmitted to the controller. The controller calculates the mortar consistency parameters and completes the test. After the test is completed, the lead screw slide 2 drives the component to rise and reset, the oscillation mechanism 22 stops running, and the cone 13 can be removed for the next test.

[0077] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A mortar consistency testing device for environmentally friendly mortar, characterized in that, include: The output end is fixed to the upper end of the worktable (1) with a screw slide (2). A cover (8) is provided on the side of the worktable (1). A cone (13) loaded with mortar is detachably provided on the coaxial axis of the cover (8). An oscillation mechanism (22) that pushes the cone (13) to vibrate is provided at the lower end of the cover (8). An infrared sensor (3) is fixedly connected to the side of the lead screw slide (2) near the cover (8). The infrared sensor (3) is electrically connected to the controller. An electromagnet (6) is fixedly connected to the lead screw slide (2) below the infrared sensor (3). A support is fixedly connected to the lead screw slide (2) below the electromagnet (6). An electric push rod (5) is fixedly connected to the upper end of the support. A retaining ring (19) is fixedly connected to one end of the support away from the lead screw slide (2). The retaining ring (19) is coaxially keyed to a guide rod (15). A permanent magnet (21) is fixedly connected to the upper end of the guide rod (15) near the lead screw slide (2), and a cone (12) is fixedly connected to the lower end. The cone (12) and the cone cylinder (13) are coaxially arranged.

2. The mortar consistency testing device for environmentally friendly mortar according to claim 1, characterized in that, A pad (17) is fixedly connected to the upper end of the guide rod (15), and a data processing module (4) is fixedly connected to the lead screw slide (2) at the lower end of the infrared sensor (3). The data processing module (4) is electrically connected to the infrared sensor (3) and the controller respectively. The data processing module (4) receives the original signal of the guide rod (15) descent height collected by the infrared sensor (3), and generates accurate height data after filtering, amplification and analog-to-digital conversion and transmits it to the controller.

3. The mortar consistency testing device for environmentally friendly mortar according to claim 1, characterized in that, A PWM pulse control module (7) is provided on the upper end of the electromagnet (6), and the PWM pulse control module (7) is electrically connected to the electromagnet (6) and the controller respectively; The PWM pulse control module (7) is used to receive the on / off command issued by the controller and control the excitation intensity of the electromagnet (6) by adjusting the pulse duty cycle, so as to achieve smooth desorption when the guide rod (15) is released.

4. The mortar consistency testing device for environmentally friendly mortar according to claim 3, characterized in that, The guide rod (15) has a positioning surface (16) formed on the side near the electric push rod (5). A rubber pad (14) is fixed to the output end of the electric push rod (5). The rubber pad (14) abuts against the positioning surface (16) after the electric push rod (5) is started.

5. The mortar consistency testing device for environmentally friendly mortar according to claim 4, characterized in that, The guide rod (15) is arranged with three guide grooves (18) in a circular direction, and the retaining ring (19) is fixed with three guide wedges (20) at equal angles in the circular direction. The three guide wedges (20) are slidably connected to the three guide grooves (18) respectively.

6. The mortar consistency testing device for environmentally friendly mortar according to claim 1, characterized in that, The upper end of the cover (8) is fixed with guide shafts (9) arranged at equal angles along the circumference. The cone (13) is formed with guide holes arranged at equal angles along the circumference. When the cone (13) is installed coaxially to the middle of the cover (8), the guide holes are slidably connected to the guide shafts (9) along the same axis.

7. The mortar consistency testing device for environmentally friendly mortar according to claim 1, characterized in that, The cover (8) is slidably provided with a recessed platform (10) on the same axis as the cone (13). The recessed platform (10) is coaxially provided with a groove in the middle of the recessed platform (10), and the outline of the groove is adapted to the shape of the lower end of the cone (13).

8. The mortar consistency testing device for environmentally friendly mortar according to claim 7, characterized in that, The oscillation mechanism (22) includes a cam (31) rotatably disposed at the lower end of the recess (10). The outer side of the cam (31) abuts against the lower end of the recess (10). A secondary bevel tooth (30) is rotatably connected to the side of the cam (31) along the same axis. A main bevel tooth (29) is rotatably disposed at the lower end of the secondary bevel tooth (30). The main bevel gear (29) is coaxially fixed to the auxiliary pulley (28), and the main pulley (27) is rotatably arranged on the side of the cover (8). The main pulley (27) is connected to the auxiliary pulley (28) by a belt.

9. The mortar consistency testing device for environmentally friendly mortar according to claim 8, characterized in that, A throttle handle (23) is rotatably connected to the side of the cover (8). A gear (24) is fixedly connected to the throttle handle (23) on the same axis. A rack (25) is provided on the side of the gear (24) and is slidably connected to the cover (8). A ratchet rod (26) is fixedly connected to the rack (25). The output end of the ratchet rod (26) is fixedly connected to the main pulley (27) on the same axis.

10. A mortar consistency testing device for environmentally friendly mortar according to claim 8, characterized in that, The top cover (11) is coaxially fixed to the side of the cover (8) near the center. The top cover (11) is fixed to the limit rods (32) in an equal angle array along the circumferential direction. The lower end of the limit rods (32) is slidably connected to the recess (10). A spring (33) is sleeved on the outside of the limiting rod (32). The upper end of the spring (33) is fixed to the top cover (11), and the lower end is fixed to the recess (10).

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