Polycarboxylate superplasticizer performance testing device

Abstract

The invention discloses a polycarboxylic acid water reducing agent performance testing device, and belongs to the technical field of polycarboxylic acid testing, the polycarboxylic acid water reducing agent performance testing device comprises a proportioning mechanism for automatically proportioning a water reducing agent and a detection mechanism for detecting the slump of concrete, the proportioning mechanism comprises a flow choking shell and an automatic quantitative distribution roller rotationally connected to the inner side of the flow choking shell, and a plurality of matching grooves distributed in the circumferential direction are formed in the surface of the automatic quantitative distribution roller, sliding openings are formed in the bottom ends of the matching grooves, movable hinge blocks are slidably connected to the inner sides of the sliding openings, and volume adjusting plates are fixedly connected to the top ends of the movable hinge blocks. The proportioning mechanism is arranged, the inner side of the proportioning groove is automatically filled with the water reducing agent by rotating the automatic quantitative distribution roller, the automatic proportioning function of the water reducing agent can be achieved, independent proportioning by testers is not needed, the workload of the testers is reduced, the testing efficiency is improved, and convenience is provided for testing of the water reducing agent by arranging the detection assembly.

Description

Technical Field

[0001] The invention relates to the technical field of polycarboxylic acid testing, and in particular to a polycarboxylic acid water reducer performance testing device. Background Art

[0002] Polycarboxylate water reducer is a high-performance water reducer and a cement dispersant used in cement concrete. It is widely used in projects such as roads, bridges, dams, tunnels, and high-rise buildings.

[0003] After the existing polycarboxylate water-reducing agent is prepared, it is necessary to test its effect on the slump of different cements. The existing testing device requires the tester to mix the water-reducing agent in advance, and then pour the water-reducing agent into the inner side of the mixing box to mix with the concrete, and then pour the concrete into the inner side of the conical cylinder. The tester then pulls out the conical cylinder, and the concrete collapses under the action of its own gravity. The slump is obtained by subtracting the height of the highest point of the concrete after the collapse from the height of the barrel. The operation steps are relatively large and the operation is relatively cumbersome, which greatly reduces the test efficiency of the water-reducing agent. Therefore, a polycarboxylate water-reducing agent performance testing device is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the test device is cumbersome to operate and greatly reduces the test efficiency of the water reducer, and to propose a polycarboxylate water reducer performance test device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A polycarboxylate water-reducing agent performance testing device, comprising a proportioning mechanism for automatically proportioning water-reducing agent and a detection mechanism for detecting the slump of concrete, the proportioning mechanism comprising a flow-blocking shell and an automatic quantitative distribution roller rotatably connected to the inner side of the flow-blocking shell, a plurality of circumferentially distributed proportioning grooves are provided on the surface of the automatic quantitative distribution roller, a sliding opening is provided at the bottom end of the proportioning groove, a movable hinge block is slidably connected to the inner side of the sliding opening, a volume adjustment plate is fixedly connected to the top end of the movable hinge block, an adjustment component for adjusting the movement of the movable hinge block is arranged on the inner side of the automatic quantitative distribution roller, and a dropping funnel is fixedly connected to the bottom end of the flow-blocking shell;

[0007] A mixing box for mixing concrete and water reducing agent is arranged below the automatic quantitative distribution roller, a mixing motor is installed on the side wall of the mixing box, and an output end of the mixing motor is connected to a mixing rod arranged inside the mixing box;

[0008] The detection assembly is arranged below the mixing box, and comprises a U-shaped frame, a moving plate slidably connected to the inner side of the U-shaped frame, a cylinder connected to the moving plate is installed on the inner side of the U-shaped frame, and a measuring scale is arranged on the surface of the U-shaped frame.

[0009] Preferably, a water reducing agent storage box is fixedly connected to the top of the flow-blocking shell, an observation window is provided on the front of the automatic quantitative distribution roller at the proportioning groove, and a volume scale is provided on the surface of the observation window.

[0010] Preferably, the adjustment assembly includes a driving screw shaft rotatably connected to the side wall of the automatic quantitative dispensing roller, a multi-directional nut block threadedly connected to the surface of the driving screw shaft, and a transmission rod rotatably connected between the multi-directional nut block and the movable hinge block.

[0011] Preferably, a gear ring is fixedly connected to the surface of the automatic quantitative distribution roller, a rotary motor is arranged on one side of the automatic quantitative distribution roller, and an output end of the rotary motor is fixedly connected to a driving gear meshing with the gear ring.

[0012] Preferably, a leakage port is provided at the bottom end of the mixing box, and an L-shaped slide plate is slidably arranged at the leakage port at the bottom end of the mixing box, a tilting block is fixedly connected to one side of the L-shaped slide plate, and a lever for moving the L-shaped slide plate is arranged on the surface circumference of the automatic quantitative distribution roller, and the L-shaped slide plate and the automatic quantitative distribution roller are magnetically attracted to each other.

[0013] Preferably, a concrete slump detection cone is provided directly below the material leakage port, and the concrete slump detection cone is fixedly connected to the side wall of the U-shaped frame.

[0014] Preferably, the position of the lever and the position of the proportioning groove are staggered to facilitate the discharge of the concrete inside the mixing box before the next water reducing agent drips onto the inside of the mixing box.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention is provided with a proportioning mechanism, and the water reducing agent is automatically filled into the inner side of the proportioning tank by rotating the automatic quantitative distribution roller, so that the automatic proportioning function of the water reducing agent can be realized, and the test personnel do not need to proportion separately, which reduces the workload of the staff and improves the test efficiency.

[0017] 2. The present invention is provided with an adjustment component, so that the position of the volume adjustment plate can be adjusted, and then the volume inside the proportioning tank can be adjusted, so as to facilitate changing the proportion of the water reducing agent.

[0018] 3. The present invention is provided with a detection component, and a cylinder is used to drive the movable plate to move downward, so that the concrete inside the concrete slump detection cone leaks out. Under the action of its own gravity, the concrete collapses. The height value of the highest point of the concrete is read out in conjunction with the measuring scale on the surface of the U-shaped frame. The slump value can be obtained by subtracting the height value of the highest point of the concrete from the height of the concrete slump detection cone, which provides convenience for the testing of the water reducing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a polycarboxylate water reducer performance test device proposed by the present invention Figure 1 ;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of a polycarboxylate water reducer performance test device proposed by the present invention Figure 2 ;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of an automatic quantitative dispensing roller in a polycarboxylate water-reducing agent performance testing device proposed by the present invention;

[0022] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 A schematic diagram of the structure of a mixing box, an L-shaped slide plate and a concrete slump detection cone in a polycarboxylate water-reducing agent performance test device proposed for the invention;

[0024] Figure 6 The present invention is a schematic diagram of the structure of an adjustment component in a polycarboxylate water-reducing agent performance testing device.

[0025] In the figure: 1. automatic quantitative distribution roller; 101. proportioning tank; 2. stirring motor; 3. flow-blocking shell; 4. water-reducing agent storage box; 5. lever; 6. mixing box; 7. moving plate; 8. concrete slump detection cone; 9. U-shaped frame; 10. cylinder; 11. tilting block; 12. gear ring; 13. rotating motor; 14. driving gear; 15. observation window; 16. driving screw shaft; 17. dropping funnel; 18. volume adjustment plate; 19. moving hinge block; 20. transmission rod; 21. multi-directional nut block; 22. L-shaped slide plate; 23. stirring rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Reference Figure 1-6A polycarboxylate water-reducing agent performance testing device includes a proportioning mechanism for automatically proportioning water-reducing agent and a detection mechanism for detecting the slump of concrete. The proportioning mechanism includes a flow-blocking shell 3 and an automatic quantitative distribution roller 1 rotatably connected to the inner side of the flow-blocking shell 3. The surface of the automatic quantitative distribution roller 1 is provided with a plurality of circumferentially distributed proportioning grooves 101. The bottom end of the proportioning groove 101 is provided with a sliding opening. A movable hinge block 19 is slidably connected to the inner side of the sliding opening. A volume adjustment plate 18 is fixedly connected to the top of the movable hinge block 19. The automatic quantitative distribution roller 1 An adjusting assembly for adjusting the movement of the movable hinge block 19 is provided on the inner side, and the adjusting assembly includes a driving screw shaft 16 rotatably connected to the side wall of the automatic quantitative distribution roller 1, a multi-directional nut block 21 threadedly connected to the surface of the driving screw shaft 16, and a transmission rod 20 rotatably connected between the multi-directional nut block 21 and the movable hinge block 19. A gear ring 12 is fixedly connected to the surface of the automatic quantitative distribution roller 1, and a rotating motor 13 is provided on one side of the automatic quantitative distribution roller 1. The output end of the rotating motor 13 is fixedly connected to a driving gear 14 meshing with the gear ring 12.

[0028] It should be noted that: by rotating the screw shaft 16, the multi-directional nut block 21 drives one end of the transmission rod 20 to move, so that the other end of the transmission rod 20 lifts the volume adjustment plate 18, and the volume scale on the observation window 15 can be used to adjust the volume of the proportioning tank 101 and change the proportion of the water reducer;

[0029] It should be noted that the rotating motor 13 drives the driving gear 14 to rotate intermittently, and the driving gear 14 drives the gear ring 12 to rotate, thereby driving the automatic quantitative distribution roller 1 to rotate. When the proportioning tank 101 rotates to the water reducer storage box 4, the water reducer inside it automatically fills the proportioning tank 101, realizing the automatic proportioning function of the water reducer.

[0030] A dropping funnel 17 is fixedly connected to the bottom end of the flow-blocking housing 3;

[0031] It should be noted that the dropping funnel 17 can slowly drop the water reducing agent into the inner side of the mixing box 6 to ensure that it is fully mixed with the concrete;

[0032] A mixing box 6 for mixing concrete and water reducing agent is arranged below the automatic quantitative distribution roller 1, a mixing motor 2 is installed on the side wall of the mixing box 6, and a mixing rod 23 arranged inside the mixing box 6 is connected to the output end of the mixing motor 2;

[0033] It should be noted that the stirring motor 2 drives the stirring rod 23 to rotate, so as to achieve the stirring function of the water reducing agent and the concrete.

[0034] The detection component is arranged below the mixing box 6, and the detection component includes a U-shaped frame 9, a moving plate 7 slidably connected to the inner side of the U-shaped frame 9, a cylinder 10 connected to the moving plate 7 is installed on the inner side of the U-shaped frame 9, and a measuring scale is arranged on the surface of the U-shaped frame 9.

[0035] It should be noted that the cylinder 10 drives the movable plate 7 to move downward, so that the concrete inside the concrete slump detection cone 8 is separated, and the height of the highest point of the concrete can be directly read out in conjunction with the measuring scale on the surface of the U-shaped frame 9.

[0036] The top of the flow-blocking housing 3 is fixedly connected with a water reducing agent storage box 4 , and the front of the automatic quantitative dispensing roller 1 is provided with an observation window 15 at the proportioning groove 101 , and the surface of the observation window 15 is provided with a volume scale.

[0037] It should be noted that the arrangement of the observation window 15 and the volume scale facilitates adjustment of the position of the volume adjustment plate 18 inside the mixing tank 101 , thereby facilitating accurate change of the volume of the mixing tank 101 .

[0038] A material leakage port is provided at the bottom end of the mixing box 6, and an L-shaped slide plate 22 is slidably provided at the bottom end of the mixing box 6 at the material leakage port. A tilting block 11 is fixedly connected to one side of the L-shaped slide plate 22. A lever 5 for moving the L-shaped slide plate 22 is provided on the surface circumference of the automatic quantitative distribution roller 1, and the L-shaped slide plate 22 and the automatic quantitative distribution roller 1 are magnetically attracted to each other.

[0039] The position of the lever 5 and the position of the proportioning groove 101 are arranged alternately, so as to ensure that the concrete inside the mixing box 6 is discharged before the next water reducing agent is dripped onto the inside of the mixing box 6 .

[0040] It should be noted that: the lever 5 rotates with the automatic quantitative distribution roller 1, and during the rotation process, it pushes the inclined surface of the inclined block 11, thereby moving the L-shaped slide plate 22, thereby opening the material leakage port, so that the concrete inside the mixing box 6 is discharged to the inside of the concrete slump detection cone 8;

[0041] It should be noted that when the lever 5 is separated from the tilting block 11 , the L-shaped slide plate 22 is reset due to the magnetic attraction between the tilting block 11 and the automatic quantitative dispensing roller 1 .

[0042] A concrete slump detection cone 8 is arranged just below the material leakage port, and the concrete slump detection cone 8 is fixedly connected to the side wall of the U-shaped frame 9.

[0043] When the present invention is used, the water-reducing agent to be tested is poured into the water-reducing agent storage box 4, and then the rotating motor 13 is turned on. The rotating motor 13 drives the automatic quantitative distribution roller 1 to rotate through the driving gear 14 and the gear ring 12. When the proportioning tank 101 rotates to the water-reducing agent storage box 4, the water-reducing agent inside the water-reducing agent storage box 4 automatically fills the proportioning tank 101. When the proportioning tank 101 rotates to the dripping funnel 17 below, the water-reducing agent will fall into the inside of the dripping funnel 17. Under the action of the dripping funnel 17, the water-reducing agent gradually drips into the mixing box 6, and then the corresponding concrete and water are poured into the mixing box 6. The stirring motor 2 is turned on, and the stirring motor 2 drives the stirring rod 23 to rotate to achieve the mixing function of the water-reducing agent and the concrete.

[0044] After the mixing is completed, the rotating motor 13 starts to work, so that the automatic quantitative distribution roller 1 rotates, so that the next proportioning tank 101 rotates to the dropping funnel 17, so as to carry out the next test operation;

[0045] When the concrete completely falls into the inner side of the concrete slump detection cone 8, the cylinder 10 is turned on, and the cylinder 10 drives the movable plate 7 to move downward, so that the concrete inside the concrete slump detection cone 8 leaks out. Under the action of its own gravity, the concrete collapses. With the measurement scale on the surface of the U-shaped frame 9, the height value of the highest point of the concrete is read out. The slump value can be obtained by subtracting the height value of the highest point of the concrete from the height of the concrete slump detection cone 8, which provides convenience for the test of the water reducing agent.

[0046] 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 polycarboxylate water-reducing agent performance testing device, comprising a proportioning mechanism for automatically proportioning water-reducing agent and a detection mechanism for detecting the slump of concrete, characterized in that: The proportioning mechanism comprises a flow-blocking shell (3) and an automatic quantitative distribution roller (1) rotatably connected to the inner side of the flow-blocking shell (3); a plurality of circumferentially distributed proportioning grooves (101) are provided on the surface of the automatic quantitative distribution roller (1); a sliding opening is provided at the bottom end of the proportioning groove (101); a movable hinge block (19) is slidably connected to the inner side of the sliding opening; a volume adjustment plate (18) is fixedly connected to the top end of the movable hinge block (19); an adjustment component for adjusting the movement of the movable hinge block (19) is provided on the inner side of the automatic quantitative distribution roller (1); and a dropping funnel (17) is fixedly connected to the bottom end of the flow-blocking shell (3); A mixing box (6) for mixing concrete and a water reducing agent is arranged below the automatic quantitative distribution roller (1), a mixing motor (2) is installed on the side wall of the mixing box (6), and an output end of the mixing motor (2) is connected to a mixing rod (23) arranged inside the mixing box (6); The detection assembly is arranged below the mixing box (6), and comprises a U-shaped frame (9), a moving plate (7) slidably connected to the inner side of the U-shaped frame (9), a cylinder (10) connected to the moving plate (7) is installed on the inner side of the U-shaped frame (9), and a measuring scale is arranged on the surface of the U-shaped frame (9).

2. A polycarboxylate water reducer performance testing device according to claim 1, characterized in that: The top end of the flow-blocking shell (3) is fixedly connected to a water-reducing agent storage box (4); the front of the automatic quantitative distribution roller (1) is provided with an observation window (15) at the proportioning groove (101); and the surface of the observation window (15) is provided with a volume scale.

3. A polycarboxylate water reducer performance testing device according to claim 1, characterized in that: The adjustment assembly comprises a driving screw shaft (16) rotatably connected to the side wall of the automatic quantitative dispensing roller (1), a multi-directional nut block (21) threadedly connected to the surface of the driving screw shaft (16), and a transmission rod (20) rotatably connected between the multi-directional nut block (21) and the movable hinge block (19).

4. A polycarboxylate water-reducing agent performance testing device according to claim 3, characterized in that: A toothed ring (12) is fixedly connected to the surface of the automatic quantitative distribution roller (1), a rotating motor (13) is arranged on one side of the automatic quantitative distribution roller (1), and an output end of the rotating motor (13) is fixedly connected to a driving gear (14) meshing with the toothed ring (12).

5. A polycarboxylate water-reducing agent performance testing device according to claim 4, characterized in that: The bottom end of the mixing box (6) is provided with a material leakage port, the bottom end of the mixing box (6) is slidably provided with an L-shaped slide plate (22) at the material leakage port, one side of the L-shaped slide plate (22) is fixedly connected with an inclined block (11), and the surface circumference of the automatic quantitative distribution roller (1) is provided with a lever (5) for moving the L-shaped slide plate (22), and the L-shaped slide plate (22) and the automatic quantitative distribution roller (1) are magnetically attracted to each other.

6. A polycarboxylate water-reducing agent performance testing device according to claim 5, characterized in that: A concrete slump detection cone (8) is arranged directly below the material leakage port, and the concrete slump detection cone (8) is fixedly connected to the side wall of the U-shaped frame (9).

7. A polycarboxylate water-reducing agent performance testing device according to claim 6, characterized in that: The positions of the levers (5) and the proportioning grooves (101) are arranged in a staggered manner, so as to facilitate the discharge of the concrete inside the mixing box (6) before the next water reducing agent is dripped onto the inside of the mixing box (6).

Images