Cement paste stirrer

Abstract

The utility model relates to the technical field of cement experiment devices, and particularly discloses a cement paste stirrer. The rack is fixedly connected with the base, the stirring motor is arranged on the rack and is suspended by the rack, the stirring shaft and the stirring pot are connected with an output shaft of the stirring motor, stirring fan blades are arranged on the stirring shaft, and the stirring fan blades comprise pushing fan blades which are arranged at the tail end of the stirring shaft and can push cement and water upwards. The technical problems that in the prior art, a cement paste stirrer can only mechanically mix cement and water on the same layer as stirring blades, and efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement experimental devices, in particular to a cement slurry mixer. Background Art

[0002] Cement slurry mixer is a device that mixes water and cement and stirs them thoroughly to form a uniform and stable slurry. The stirred slurry can be used to measure the standard consistency and setting time of cement and to make stability test blocks. It is an indispensable equipment in concrete additive experiments.

[0003] The structure of the cement slurry mixer is simple and can be divided into five parts: base, frame, stirring motor, stirring shaft and stirring pot. The stirring motor is suspended in the air using the base and frame so that the output shaft of the stirring motor faces downward. The stirring shaft is used to extend the output shaft of the stirring motor and extend it into the stirring pot. Therefore, when the stirring motor is started, the output shaft begins to rotate, and then the stirring shaft also rotates in the stirring pot. At this time, the stirring blades installed on the stirring shaft also rotate and push the cement and water to start mixing. For example, a cement slurry mixer is disclosed in the patent document with application number: CN202322316954.0, and the structure of a cement slurry mixer disclosed in the patent document with application number CN202322988832.6 is the same.

[0004] Although the structure in the above-mentioned patent can also mix cement and water, the mixing blades on the mixing shaft can only stir the cement and water in the same layer when stirring. The cement and water in the same layer as the mixing blade part can only be exchanged and mixed by the turbulence generated by the disturbed water body, so it takes a long time for the mixer to mix the cement and water evenly and fully, and its mixing efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to provide a cement slurry mixer to solve the technical problem that the cement slurry mixer in the prior art can only mechanically mix cement and water on the same layer as the mixing blades, resulting in low efficiency.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a cement slurry mixer, including a base, a frame fixedly connected to the base, a stirring motor arranged on the frame and suspended by the frame, a stirring shaft and a stirring pot connected to the output shaft of the stirring motor, the stirring shaft is provided with stirring blades, and the stirring blades include a pushing blade arranged at the end of the stirring shaft and capable of pushing cement and water upward.

[0007] The beneficial effects of this embodiment are:

[0008] 1. In the prior art, the stirring blades on the stirring shaft can only stir the cement and water in the same layer during stirring. The cement and water in the same layer as the stirring blades can only be exchanged and mixed by the turbulence generated by the disturbed water body, so that the mixer takes a long time to fully mix the cement and water. However, the present application sets a pushing blade at the end of the stirring shaft to push the water and cement upward. The pushing blade is used to disrupt the laminar flow during stirring, so that water and cement at different height layers flow to each other and mix under the push of the stirring blade. Therefore, the mixing time of the cement slurry mixer of the present application is shortened.

[0009] Furthermore, the mixing blades also include disturbance blades that can push water and cement toward the inner wall of the mixing pot.

[0010] Furthermore, the single blade of the disturbance blade is a spatial special-shaped structure with its middle portion twisted so that both end surfaces of the single blade are perpendicular to each other.

[0011] Furthermore, the pushing fan blade includes a fixing ring, and the fixing ring is provided with an arc-shaped plate obliquely connected to the fixing ring, and the inner arc surface of the arc-shaped plate faces upward.

[0012] Furthermore, the pushing fan blade also includes a mounting buckle that is detachably connected to the stirring shaft, and a connecting rod is directly provided between the fixing ring and the mounting buckle.

[0013] Furthermore, the diameter of the disturbing blade is larger than the diameter of the pushing blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of a single blade of a disturbance blade according to an embodiment of the present invention.

[0016] Figure 3 This is a diagram of the structure of the propulsion fan blades according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods:

[0018] The figure marks in the drawings of the specification include: base 1, frame 2, stirring motor 3, stirring shaft 4, disturbance fan blade 51, connecting part 511, diffusion part 512, sliding sleeve 513, pushing fan blade 52, mounting buckle 521, fixing ring 522, arc plate 523, connecting rod 524, stirring pot 6, stirring pot bottom frame 7, positioning column 71.

[0019] Implementation example Figures 1 to 3The figure shows a cement slurry mixer, comprising a base 1. Base 1 is a solid cast iron structure, and its mass is greater than that of a frame 2 mounted on it. This lowers the center of gravity of the frame 2 and base 1, resulting in greater stability. Frame 2 is shaped like an inverted 7, with a vertical lower portion welded to base 1, one end of its horizontal upper portion welded to the vertical lower portion, and the other end configured as a hollow structure. A mixing motor 3 is sleeved within the cavity and secured to frame 2 with bolts.

[0020] The lower end structure of the output shaft of the stirring motor 3 is consistent with the electric drill and is provided with a drill clamp. The clamping opening of the drill clamp is used to fix the stirring shaft 4 so that the stirring shaft 4 is fixed to the output shaft of the stirring motor 3 and can rotate along with the output shaft of the stirring motor 3.

[0021] After installation, the stirring shaft 4 can extend into the cavity in the center of the stirring pot 6. The stirring pot 6 is mounted on the base 1, and its mounting position is opposite to the frame 2. Therefore, the weight of the stirring pot 6 can be applied to the base 1, making the overall stability higher during stirring. The stirring pot base frame 7 is provided on the base 1, and the stirring pot base frame 7 is provided with a positioning post 71. The positioning post 71 can be inserted into the positioning hole in the bottom of the stirring pot to fix the stirring pot 7 to the base 1.

[0022] The stirring shaft 4 is provided with stirring blades, which include a disturbance blade 51 and a push blade 52. The stirring blade 51 is sleeved onto the rod of the stirring shaft 4 using a sliding sleeve 513. The stirring blade 51 can be adjusted in height by sliding along the stirring shaft 4. The stirring blade 51 is fixed to the stirring shaft 4 with bolts. During use, the stirring blade 51 can be adjusted to be lower than the liquid level in the stirring pot 6 to ensure contact with the water and cement slurry. Of course, the disturbance blade 51 can also be directly welded to the stirring shaft.

[0023] The single blade structure of the disturbance blade 51 is as follows Figure 2 As shown, the entire structure is produced by twisting and bending a thin plate. The two ends of the single blade of the disturbance blade 51 are a vertical connection portion 511 and a diffusion portion 512 that pushes water and cement downward. After the single blade of the disturbance blade 51 is twisted, the end surfaces of the connection portion 511 and the diffusion portion 512 form a mutually perpendicular spatial special-shaped structure. The connection portion 511 is one end welded to the sliding sleeve 513 on the disturbance blade 51. When welded to the sliding sleeve 513, it is vertical. Therefore, when the disturbance blade 51 rotates, it will first cause the water and cement to rotate in a disturbing manner. Due to the action of centrifugal force, the water and cement slurry will be pushed toward the inner wall of the mixing pot 6. However, because the diffusion portion 512 of the disturbance blade 51 is a horizontal plate and is slightly tilted downward, when the slurry flows along the blade toward the inner wall of the mixing pot 6, it is pushed downward by the horizontal diffusion plate 512, causing the slurry to flow downward along the inner wall of the mixing pot 6.

[0024] The end of the stirring shaft 4 is detachably connected to a push blade 52, which is as shown in FIG. Figure 3As shown, it includes a mounting buckle 521 connected to the stirring shaft 4 at the center. The mounting buckle 521 can be directly welded to the end of the stirring shaft 4 after being buckled. Six connecting rods 524 are welded on the outer circumference of the mounting buckle 521. The end faces of the connecting rods 524 are all welded to the inner layer of the fixing ring 522. Therefore, the connecting rods 524 connect the fixing ring 522 and the mounting buckle 521 to form a frame. A number of arc-shaped plates 523 are welded above the fixing ring 522, and the inner side of the arc-shaped plates 523 face upwards and are welded to the fixing ring 522 on the outer side. During welding, it is ensured that the end faces of the arc-shaped plates 523 are perpendicular to the horizontal plane, that is, the chord connecting the two ends of the interface of the arc-shaped plates 523 and the plane formed by the fixing ring have a certain inclination angle. Therefore, when the stirring shaft 4 rotates, the fan blades 52 also rotate. While the arc-shaped plates 523 mix the slurry of water and cement, they push the slurry upward, causing the slurry at the bottom of the stirring pot 6 to flow upward.

[0025] The blade diameter of the disturbance blade 51 is larger than the diameter of the push blade 52. Therefore, when the stirring shaft 4 rotates, the push blade 52 pushes the slurry in the center of the stirring pot 6 upward, causing the slurry to flow upward, while the upper layer of slurry is pushed toward the inner wall of the stirring pot 6 by the disturbance blade 51 and flows downward. Therefore, under the action of the disturbance blade 51 and the push blade 52, the slurry flows in the vertical direction, disturbing the slurry at each height layer, making the mixing time faster.

[0026] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A cement slurry mixer, comprising a base, a frame fixedly connected to the base, a stirring motor arranged on the frame and suspended by the frame, a stirring shaft connected to an output shaft of the stirring motor, and a stirring pot, characterized in that: The stirring shaft is provided with stirring blades, and the stirring blades include a pushing blade which is arranged at the end of the stirring shaft and can push cement and water upward.

2. The cement paste mixer according to claim 1, characterized in that: The stirring blades also include disturbance blades which can push water and cement toward the inner wall of the stirring pot.

3. The cement paste mixer according to claim 2, characterized in that: The single blade of the disturbance blade is a spatial special-shaped structure with the middle portion twisted so that the two end surfaces of the single blade are perpendicular to each other.

4. The cement paste mixer according to claim 3, characterized in that: The push fan blade comprises a fixing ring, on which is provided an arc-shaped plate obliquely connected to the fixing ring, and the inner arc surface of the arc-shaped plate faces upward.

5. The cement paste mixer according to claim 4, characterized in that: The push fan blade also includes a mounting buckle detachably connected to the stirring shaft, and a connecting rod is directly provided between the fixing ring and the mounting buckle.

6. The cement paste mixer according to claim 5, characterized in that: The diameter of the disturbing blade is larger than the diameter of the pushing blade.

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