Cement mortar rheometer

Abstract

The invention discloses a cement mortar rheometer, and relates to the technical field of rheology determination. The problem of temperature control is solved. The device specifically comprises a rack, a vertical frame is fixedly installed on the outer wall of one side of the top of the rack, one side of the vertical frame is in transmission connection with a lifting frame through a lifting guide driving mechanism arranged in the vertical frame, and a data acquisition assembly is arranged at the bottom of the lifting frame; the top of the rack is in transmission connection with a water bath containing pool assembly through a rotary driving assembly arranged in the rack, the water bath containing pool assembly is composed of a water bath pool located on the outer side and a containing pool located on the inner side, and the water bath pool is in transmission fit with the rotary driving assembly; and the water bath pool is externally connected with a water bath temperature control system to control the water temperature. According to the invention, the water bath containing pool assembly is set to be a combination of the containing pool and the water bath pool, so that the temperature of the fluid can be controlled through the water temperature by utilizing the heat transfer characteristic, and the rheological characteristics of the fluid under different temperature conditions can be tested more comprehensively.

Description

Technical Field

[0001] The invention relates to the technical field of rheological measurement, in particular to a cement mortar rheometer. Background Art

[0002] Cement mortar rheology tester is a special equipment for measuring the rheological properties of cement mortar materials. It can test the rheological properties of workability, pumpability, construction and workability of putty, cement paste, mortar, fine concrete, etc. It can obtain the rheological curve and rheological parameters of the material at a certain temperature; the relationship between the curing behavior of the material and time at a certain stirring rate; the influence of stirring speed, time, admixtures and mineral admixtures on workability, etc.

[0003] After searching, the Chinese patent publication number CN101655438B discloses a fluid rheological properties and viscosity measuring instrument, including: a mounting plate; a central connecting mechanism is arranged on the mounting plate; below the mounting plate, on the central connecting mechanism, there are a jewel bearing mechanism and a rotor in sequence; also includes: above the mounting plate, on the central connecting mechanism, there are a torque sensor, a torque displacement adjustment mechanism and a bearing mechanism in sequence; the bearing mechanism is connected to a stepper motor driven by a high-subdivision stepper motor drive circuit; a contactless photoelectric sensor connected to a computer processor control system is arranged next to the torque sensor.

[0004] The above patent has the following shortcomings: it directly places the fluid in the test cup and cannot control the temperature of the fluid. Since the rheological properties of the fluid are greatly affected by temperature, it also has great limitations.

[0005] To this end, the present invention provides a cement mortar rheometer. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a cement mortar rheometer.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A cement mortar rheometer, comprising a frame,

[0009] A stand is fixedly mounted on an outer wall of one side of the top of the frame, one side of the stand is connected to the lifting frame through a lifting guide drive mechanism arranged inside the stand, a data acquisition component is arranged at the bottom of the lifting frame, and the top of the frame is connected to a water bath holding pool component through a rotating drive component arranged inside the stand, the water bath holding pool component consists of a water bath located on the outside and a holding pool located on the inside, and the water bath transmission is coordinated with the rotating drive component.

[0010] Preferably: the water bath is connected to an external water bath temperature control system to control the water temperature.

[0011] Furthermore: the data acquisition component includes a torque sensor fixed to the bottom of the lifting frame and a connecting rod connected to the sensing end of the torque sensor through a connecting nut, and a probe is fixed to the outer wall of the bottom end of the connecting rod; the data acquisition component also includes a temperature sensor fixed to the side wall of the connecting rod.

[0012] Based on the above solution: the probe is six-leaf type or frame type.

[0013] A better solution among the above solutions is: the lifting guide drive mechanism includes a linear slide rail and a slider that slide with each other and a screw that is rotatably connected to the inner side of the frame, the slider is fixedly installed on the inner wall of the frame, the slider is fixedly installed on the side wall of the lifting frame, and a motor 1 is fixedly installed on the inner wall of the bottom of the frame, the output shaft of motor 1 is fixedly connected to the end of the screw, and the circumferential outer wall of the screw is connected to the inner wall of the slider through a thread.

[0014] As a further solution of the present invention: an upper limiter and a lower limiter for detecting the position of the slider are respectively arranged above and below the linear slide rail.

[0015] At the same time, the rotary drive assembly includes a reducer and motor 2 fixed inside the frame, the output shaft of motor 2 is fixedly connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the bottom of the water bath through a coupling.

[0016] As a preferred embodiment of the present invention: a motor driver 1, a control main board and a motor driver 2 are fixedly installed inside the frame, the motor driver 1 and the motor driver 2 are respectively controlled and connected to the motor 1 and the motor 2, and the motor driver 1 and the control main board are electrically connected to the control main board.

[0017] At the same time, a vertical LED lighting lamp is arranged at the bottom of the lifting frame, and screw rods are connected to the four corners of the bottom of the frame through threads, and the outer wall of the screw rods is provided with feet.

[0018] As a more preferred solution of the present invention: the foot comprises a contact foot and a transition foot which are rotatably connected to each other, and a threaded hole which cooperates with a screw rod is formed on the top inner wall of the transition foot.

[0019] The outer wall of the transition foot is provided with a first anti-skid pattern, and the bottom of the contact foot is provided with a second anti-skid pattern.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention, by configuring the water bath containing tank assembly as a combination of a containing tank and a water bath, can utilize the heat transfer characteristics to control the temperature of the fluid through the water temperature, thereby being able to test the rheological characteristics of the fluid under different temperature conditions, which is more comprehensive.

[0022] 2. The present invention, by providing an LED lighting lamp, can provide supplementary light for the water bath containing pool assembly during the experiment, so that operators and experimenters can observe the entire test process more clearly and intuitively.

[0023] 3. The present invention, by providing the feet and the screw, can change the gap between each foot and the frame by rotating the screw, thereby adjusting the levelness of the entire rheometer, which is beneficial to increasing the test accuracy.

[0024] 4. The present invention, through the targeted arrangement of the ground feet, can make the contact feet and the ground relatively fixed when adjusting the gap, which can reduce the force required for adjustment on the one hand and prevent sliding wear on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a cement mortar rheometer proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a lifting guide drive mechanism of a cement mortar rheometer proposed by the present invention;

[0027] Figure 3 A schematic cross-sectional view of a data acquisition component of a cement mortar rheometer proposed in the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of a rotary drive assembly of a cement mortar rheometer proposed by the present invention;

[0029] Figure 5 A schematic diagram of the internal structure of a frame of a cement mortar rheometer proposed by the present invention;

[0030] Figure 6 A schematic diagram of the frame probe structure of a cement mortar rheometer proposed by the present invention;

[0031] Figure 7 The present invention provides a schematic diagram of the cross-sectional structure of the foot of a cement mortar rheometer.

[0032] In the figure: 1-frame, 2-stand, 3-lifting guide drive mechanism, 4-lifting frame, 5-data acquisition component, 6-water bath holding pool component, 7-rotation drive component, 8-upper limiter, 9-linear slide, 10-slider, 11-lower limiter, 12-motor 1, 13-screw, 14-torque sensor, 15-connecting nut, 16-connecting rod, 17-probe, 18-temperature sensor, 19-holding pool, 20-water bath, 21-coupling, 22-reducer, 23-motor 2, 24-motor driver 1, 25-control mainboard, 26-motor driver 2, 27-foot, 28-screw, 29-LED lighting, 30-contact foot, 31-transition foot, 32-anti-slip pattern 1, 33-threaded hole, 34-anti-slip pattern 2. DETAILED DESCRIPTION

[0033] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] Embodiment 1:

[0036] A cement mortar rheometer, such as Figure 1-6 As shown, it includes a frame 1, a stand 2 is fixed to the outer wall of one side of the top of the frame 1 by bolts, one side of the stand 2 is connected to a lifting frame 4 through a lifting guide drive mechanism 3 arranged inside the stand 2, a data acquisition component 5 is arranged at the bottom of the lifting frame 4, and the top of the frame 1 is connected to a water bath holding pool component 6 through a rotating drive component 7 arranged inside the stand 2, and the water bath holding pool component 6 is composed of a water bath 20 located on the outside and a holding pool 19 located on the inside, and the water bath 20 is matched with the rotating drive component 7 in transmission.

[0037] When the device is in use, cement, putty and other test fluids can be placed in the containing tank 19, and water source is injected into the water bath 20 according to the test temperature. The temperature of the water source is used to change the temperature of the containing tank 19 through heat transfer, and then the data acquisition component 5 is lowered to the test position through the lifting and guiding driving mechanism 3, and then the water bath containing tank component 6 is driven by the rotating driving component 7, so that the data collected by the data acquisition component 5 can be analyzed.

[0038] In order to solve the temperature control problem; the water bath 20 can be connected to an external water bath temperature control system to control the water temperature. Since the water bath temperature control system can be implemented through simple components such as a water pump, a water tank, a heater or a refrigerator, this is the conventional knowledge and means of those skilled in the art. This embodiment does not make creative work on it, so it will not be elaborated.

[0039] The water temperature in the water bath 20 can be controlled by a water bath temperature control system, thereby controlling the temperature of the fluid in the containing pool 19 .

[0040] The device, by configuring the water bath containing tank assembly 6 as a combination of a containing tank 19 and a water bath 20, can utilize heat transfer characteristics to control the temperature of the fluid through the water temperature, thereby being able to test the rheological characteristics of the fluid under different temperature conditions, which is more comprehensive.

[0041] In order to solve the data collection problem; Figure 1-3 As shown, the data acquisition assembly 5 includes a torque sensor 14 fixed to the bottom of the lifting frame 4 and a connecting rod 16 connected to the sensing end of the torque sensor 14 through a connecting nut 15, and a probe 17 is fixed to the outer side wall of the bottom end of the connecting rod 16.

[0042] The data acquisition assembly 5 further includes a temperature sensor 18 fixed to the side wall of the connecting rod 16 .

[0043] In this embodiment, the specific type of the probe 17 is not limited, and it can be a six-leaf type or a frame type.

[0044] The probe 17 may be subjected to a rotational torque when the water bath holding tank assembly 6 rotates, the torque sensor 14 may collect data on the rotational torque, and the temperature sensor 18 may collect the actual temperature of the fluid, thereby obtaining the rheological characteristics of the fluid in combination with the rotation speed.

[0045] In order to solve the lifting problem; Figure 2 As shown, the lifting guide drive mechanism 3 includes a linear slide rail 9 and a slider 10 that slide with each other and a screw 13 that is rotatably connected to the inner side of the stand 2. The slider 10 is fixed to the inner wall of the stand 2 by bolts, and the slider 10 is fixed to the side wall of the lifting frame 4 by bolts. A motor 12 is fixed to the inner wall of the bottom of the stand 2 by bolts, and the output shaft of the motor 12 is fixedly connected to the end of the screw 13. The circumferential outer wall of the screw 13 is connected to the inner wall of the slider 10 by threads.

[0046] When the motor 12 is started, it can drive the lead screw 13 to rotate, thereby driving the slider 10 to move up and down along the linear slide rail 9 through the threaded connection relationship, thereby driving the lifting frame 4 to move up and down.

[0047] In order to solve the position limit problem, such as Figure 2As shown, an upper limit switch 8 and a lower limit switch 11 for detecting the position of the slider 10 are respectively arranged above and below the linear slide rail 9. In this embodiment, the specific types of the upper limit switch 8 and the lower limit switch 11 are not limited. Preferably, the upper limit switch 8 and the lower limit switch 11 can adopt the sensing method of the photoelectric gate.

[0048] In order to solve the rotation drive problem; such as Figure 4 As shown, the rotary drive assembly 7 includes a reducer 22 and a motor 23 fixed inside the frame 1, the output shaft of the motor 23 is fixedly connected to the input shaft of the reducer 22, and the output shaft of the reducer 22 is connected to the bottom of the water bath 20 through a coupling 21.

[0049] When the motor 23 is started, it can drive the water bath 20 to rotate after being decelerated by the reducer 22 .

[0050] To solve control problems such as Figure 5 As shown, the interior of the frame 1 is fixed with a motor driver 1 24 , a control main board 25 and a motor driver 2 26 by bolts, and the motor driver 1 24 and the motor driver 2 26 are respectively controlled and connected to the motor 1 12 and the motor 2 23 , and the motor driver 1 24 and the control main board 25 are both electrically connected to the control main board 25 .

[0051] To solve the observation problem, such as Figure 3 As shown, a vertically irradiating LED lighting lamp 29 is disposed at the bottom of the lifting frame 4 .

[0052] By providing the LED lighting lamp 29, it can provide supplementary light for the water bath containing pool assembly 6 during the experiment, so that the operator and the experimenter can observe the entire test process more clearly and intuitively.

[0053] When the present embodiment is in use, cement, putty, or other test fluids can be placed in the containing pool 19, and water can be injected into the water bath 20 according to the test temperature. The temperature of the water source can be used to change the temperature of the containing pool 19 through heat transfer. Then, the motor 12 can be started first, which can drive the lead screw 13 to rotate, thereby driving the slider 10 to rise and fall along the linear slide rail 9 through a threaded connection, thereby driving the lifting frame 4 to rise and fall until the probe 17 is inserted into the fluid and the temperature sensor 18 is located on the upper side of the fluid. Then, the motor 23 is started, which can drive the water bath 20 to rotate after being decelerated by the reducer 22, thereby driving the fluid to rotate. The probe 17 can be subjected to a rotational torque when the water bath containing pool assembly 6 rotates, and the torque sensor 14 can collect data on the rotational torque, and the temperature sensor 18 can collect the actual temperature of the fluid, thereby combining the rotation speed to obtain the fluid rheological characteristics.

[0054] Embodiment 2:

[0055] A cement mortar rheometer, such as Figure 1 As shown, in order to solve the support problem, this embodiment makes the following improvements on the basis of embodiment 5: the four corners of the bottom of the frame 1 are all connected with screw rods 28 through threads, and the outer wall of the screw rods 28 is provided with feet 27.

[0056] When this embodiment is in use, by setting the feet 27 and the screw 28, the gap between each foot 27 and the frame 1 can be changed by rotating the screw 28, so that the levelness of the entire rheometer can be adjusted, which is beneficial to increase the test accuracy.

[0057] Embodiment 3:

[0058] A cement mortar rheometer, such as Figure 7 As shown, this embodiment makes the following improvements on the basis of Embodiment 2: the foot 27 includes a contact foot 30 and a transition foot 31 which are rotatably connected to each other, and a threaded hole 33 cooperating with the screw 28 is formed on the top inner wall of the transition foot 31.

[0059] The outer wall of the transition foot 31 is provided with an anti-skid pattern 1 32 , and the bottom of the contact foot 30 is provided with an anti-skid pattern 2 34 .

[0060] When the present embodiment is in use, the ground foot 27 is specifically arranged so that when the gap is adjusted, the contact foot 30 and the ground can be relatively fixed, which reduces the force required for adjustment on the one hand and prevents sliding wear on the other hand.

[0061] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cement mortar rheometer, comprising a frame (1), characterized in that: A stand (2) is fixedly mounted on an outer wall of one side of the top of the frame (1); one side of the stand (2) is connected to a lifting frame (4) in a transmission manner via a lifting guide drive mechanism (3) arranged inside the stand (2); a data acquisition component (5) is arranged at the bottom of the lifting frame (4); and the top of the frame (1) is connected to a water bath containing pool component (6) in a transmission manner via a rotating drive component (7) arranged inside the stand (2); the water bath containing pool component (6) is composed of a water bath (20) located on the outside and a containing pool (19) located on the inside; and the water bath (20) is matched with the rotating drive component (7) in a transmission manner.

2. A cement mortar rheometer according to claim 1, characterized in that: The water bath (20) is externally connected to a water bath temperature control system to control the water temperature.

3. A cement mortar rheometer according to claim 1, characterized in that: The data acquisition component (5) comprises a torque sensor (14) fixed to the bottom of the lifting frame (4) and a connecting rod (16) connected to the sensing end of the torque sensor (14) via a connecting nut (15), and a probe (17) is fixed to the outer wall of the bottom end of the connecting rod (16); the data acquisition component (5) also comprises a temperature sensor (18) fixed to the side wall of the connecting rod (16).

4. A cement mortar rheometer according to claim 3, characterized in that: The probe (17) is of a six-leaf type or a frame type.

5. A cement mortar rheometer according to claim 1, characterized in that: The lifting guide drive mechanism (3) comprises a linear slide rail (9) and a slider (10) which are slidably matched with each other, and a lead screw (13) which is rotatably connected to the inner side of the stand (2); the slider (10) is fixedly mounted on the inner side wall of the stand (2); the slider (10) is fixedly mounted on the side wall of the lifting frame (4); and a motor 1 (12) is fixedly mounted on the inner side wall of the bottom of the stand (2); the output shaft of the motor 1 (12) is fixedly connected to the end of the lead screw (13); and the circumferential outer wall of the lead screw (13) is connected to the inner wall of the slider (10) by a thread.

6. A cement mortar rheometer according to claim 5, characterized in that: An upper limiter (8) and a lower limiter (11) for detecting the position of the slider (10) are respectively arranged above and below the linear slide rail (9).

7. A cement mortar rheometer according to claim 1, characterized in that: The rotary drive assembly (7) comprises a reducer (22) and a second motor (23) fixed inside the frame (1); the output shaft of the second motor (23) is fixedly connected to the input shaft of the reducer (22); and the output shaft of the reducer (22) is connected to the bottom of the water bath (20) via a coupling (21).

8. A cement mortar rheometer according to claim 1, characterized in that: A motor driver 1 (24), a control mainboard (25) and a motor driver 2 (26) are fixedly installed inside the frame (1); the motor driver 1 (24) and the motor driver 2 (26) are respectively controlled and connected to the motor 1 (12) and the motor 2 (23), and the motor driver 1 (24) and the control mainboard (25) are both electrically connected to the control mainboard (25).

9. A cement mortar rheometer according to claim 1, characterized in that: A vertically irradiating LED lighting lamp (29) is arranged at the bottom of the lifting frame (4); screw rods (28) are connected to the four corners of the bottom of the frame (1) through threads, and the outer wall of the screw rods (28) is provided with a foot (27).

10. A cement mortar rheometer according to claim 9, characterized in that: The foot (27) comprises a contact foot (30) and a transition foot (31) which are rotatably connected to each other, and a threaded hole (33) which cooperates with the screw rod (28) is formed on the top inner wall of the transition foot (31); The outer wall of the transition foot (31) is provided with a first anti-skid pattern (32), and the bottom of the contact foot (30) is provided with a second anti-skid pattern (34).

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