CN210126189U - Circulating cement mixer for municipal road construction - Google Patents

Abstract

The utility model relates to a circulating cement mixer for municipal road construction, which comprises a mixing drum, an end cover is fixed on the top of the mixing drum, and a driving motor is arranged on the top surface of the end cover at the center of the end cover. The bottom side wall of the mixing drum is provided with a discharge port, the driving end of the driving motor is driven and connected with a stirring paddle extending into the interior of the stirring drum through the end cover, and the lower end of the stirring paddle is rotatably connected to the bottom of the stirring drum, The circumferential direction of the stirring paddle is fixed with a helical blade capable of rolling the slurry upward, the outer casing of the stirring paddle is provided with a circulating cylinder that is coaxial with the stirring drum and has openings at both ends, and the upper end of the circulating cylinder is fixed on the There is a gap between the upper and lower ends of the end cover and the bottom of the mixing drum, the outer wall of the circulation drum and the inner wall of the mixing drum are gap-fitted, and the peripheral wall of the upper end of the circulation drum is provided with an opening for the slurry to pass through. The utility model has the advantages of high stirring efficiency and uniform stirring.

Description

A circulating cement mixer for municipal road construction

technical field

The utility model relates to the technical field of municipal construction, in particular to a circulating cement mixer for municipal road construction.

Background technique

At present, cement mixers are relatively common equipment in municipal road construction. They are mainly used to fully mix the cement slurry and prevent the cement slurry from solidifying before it is useless.

The existing cement mixer is composed of a motor, a feeding port, a slurry outlet, etc. arranged on the mixing drum. The motor is connected to a vertical shaft in the mixing drum, and the vertical shaft is provided with a stirring blade. However, due to the limitation of the structure of the existing mixing equipment, the mixing blades in the mixing drum have a working blind area in the mixing drum, so that the cement slurry cannot be fully and uniformly mixed.

Utility model content

The purpose of the utility model is to provide a circulating cement mixer for municipal road construction, which solves the problem that the existing mixing equipment is limited by its structure, and the mixing blades in the mixing drum have a working blind area in the mixing drum, so that the cement slurry cannot be fully carried out. It has the effect of high stirring efficiency and uniform stirring.

The above-mentioned utility model purpose of the present utility model is achieved through the following technical solutions:

A circulating cement mixer for municipal road construction includes a mixing drum, an end cover is fixed on the top of the mixing drum, a drive motor is arranged on the top surface of the end cover at the center of the end cover, and the bottom of the mixing drum is provided with a driving motor. A discharge port is provided on the side wall, and the driving end of the driving motor is connected with a stirring paddle that extends into the interior of the stirring drum through the end cover, and the lower end of the stirring paddle is rotatably connected to the bottom of the stirring drum. The circumferential direction of the agitator is fixed with a spiral blade that can roll the slurry upward, the outer casing of the stirring paddle is provided with a circulating cylinder that is coaxial with the stirring cylinder and has openings at both ends, and the upper end of the circulating cylinder is fixed on the end cover, There is a gap between the lower end and the bottom of the mixing drum, the outer wall of the circulation drum and the inner wall of the mixing drum are gap-fitted, and the peripheral wall of the upper end of the circulation drum is provided with a passage for the slurry to pass through.

By adopting the above technical solution, a circulating cylinder is arranged on the outer casing of the stirring paddle. When the driving motor drives the stirring paddle to rotate, the screw blade drives the slurry to flow to the upper part of the circulating barrel, and the slurry flows out from the outlet of the circulating barrel, and then passes through the circulating barrel and the stirring barrel. The gap between them flows to the bottom of the mixing drum, so that when the mixing paddle stirs the slurry, the slurry forms a circulation loop in the mixing drum, and all the slurry is driven to circulate, so that the mixing of the slurry is more uniform. The device has high mixing efficiency. And the effect of mixing evenly.

The utility model is further configured as follows: a plurality of the passage openings are evenly spaced along the circumferential direction of the circulating cylinder.

By adopting the above technical scheme and opening a plurality of ports, the slurry can be discharged out of the circulation cylinder from the ports in time, thereby forming a good circulation loop, which is beneficial to the circulation and stirring of the slurry.

The utility model is further arranged as follows: the side wall of the circulation cylinder is covered with filter holes.

By adopting the above technical solution, when the slurry is stirred, the slurry can flow out of the circulating cylinder from the filter hole, but the unstirred cement block inside the cement slurry will be blocked at the filter hole, and will adhere to the centrifugal action of the stirring screw. The cement blocks on the inner wall of the circulating cylinder are broken up to make the cement slurry more uniform and free of cement blocks.

The utility model is further configured as follows: the end cover is provided with a feeding port, the feeding port is arranged between the side wall of the mixing drum and the outer wall of the circulating drum, and the feeding port is provided with a feeding port capable of feeding closed feed door

By adopting the above technical scheme, it is used for feeding material into the mixing drum and closing the feeding port through the feeding door, so as to prevent the slurry from being spilled from the feeding port during stirring.

The utility model is further configured as follows: the bottom of the mixing drum is inclined and the position of the inclined direction toward the discharge port is gradually lowered.

By adopting the above technical solution, when the slurry in the mixing drum is relatively small, the slurry can be completely discharged from the discharge port along the inclined plane.

The utility model is further provided that: the bottom of the mixing drum is provided with at least three support rods along the circumferential direction of the mixing drum, and the support rods are evenly spaced along the circumferential direction of the mixing drum.

By adopting the above technical solution, the three support rods can form a stable support structure to support the mixing drum.

The utility model is further arranged as follows: a universal wheel is arranged at the bottom of the support rod.

By adopting the above technical solution, it is convenient for the mixer to move.

To sum up, the beneficial technical effects of the present utility model are:

1. By setting a circulating cylinder on the outer casing of the stirring paddle, when the driving motor drives the stirring paddle to rotate, the screw blade drives the slurry to flow to the upper part of the circulating barrel, the slurry flows out from the outlet of the circulating barrel, and then passes through the gap between the circulating barrel and the stirring barrel. The gap flows to the bottom of the mixing drum, so that when the mixing paddle is stirring the slurry, the slurry forms a circulation loop in the mixing drum, and all the slurry is driven to circulate, so that the mixing of the slurry is more uniform. The device has high mixing efficiency and uniform mixing. Effect;

2. By opening filter holes on the peripheral wall of the circulating cylinder, the cement blocks inside the slurry can be attached to the filter holes, and then dispersed by the rotating centrifugal force of the stirring paddle, thereby making the slurry more uniform;

3. It is supported by setting a support rod at the bottom of the mixing drum, and a universal wheel is set on the support rod to facilitate the movement of the mixer.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

2 is a cross-sectional view of the mixing drum of the present invention.

In the figure, 1, mixing drum; 11, end cover; 12, discharge port; 121, on-off valve; 13, feed port; 131, feed gate; 2, drive motor; 3, stirring paddle; 31, screw blade ; 4. Circulating cylinder; 41. Passing port; 42. Filter hole; 5. Support rod; 6. Universal wheel.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Referring to FIG. 1, the utility model discloses a circulating cement mixer for municipal road construction, including a mixing drum 1. The mixing drum 1 is in the shape of a hollow cylinder, and an end cover 11 is fixedly welded on the top of the mixing drum 1. A discharge port 12 is provided on the bottom side wall of the mixing drum 1 , and an on-off valve 121 for controlling the discharge of the slurry is provided at the discharge port 12 . A drive motor 2 is fixedly disposed on the top surface of the end cover 11 at the center of the end cover 11 .

Referring to FIG. 2 , the drive shaft of the drive motor 2 is drive-connected with a stirring paddle 3 extending into the interior of the stirring drum 1 through the end cover 11 , and the lower end of the stirring paddle 3 is rotatably connected to the bottom of the stirring drum 1 . The helical blade 31 is fixedly welded, and the blades of the helical blade 31 are bent upward. With this arrangement, the slurry in the mixing drum 1 can be rolled upwards when the helical blade 31 rotates. A circulating drum 4 is arranged on the outer surface of the stirring paddle 3, the circulating drum 4 and the stirring drum 1 are arranged coaxially, the two ends of the circulating drum 4 are open, the upper end of the circulating drum 4 is welded on the end cover 11, and there is a gap between the lower end and the bottom of the stirring drum 1, There is a clearance fit between the outer wall of the circulation drum 4 and the inner wall of the mixing drum 1 , and the upper peripheral wall of the circulation drum 4 is provided with a port 41 for the cement slurry to pass through. Further, the port 41 is along the circumferential direction of the circulation drum 4 . Opening a plurality of them at an even interval is convenient for the cement slurry to flow out from the passage 41, thereby forming a good circulation loop. A feed port 13 is opened on the top surface of the end cover 11 , and the feed port 13 is arranged at a position between the outer wall of the circulation drum 4 and the inner wall of the mixing drum 1 . A feeding door 131 is provided on the feeding port 13 for sealing the feeding port 13 .

When stirring the cement slurry, the driving motor 2 drives the stirring paddle 3 to rotate, the screw blade 31 rolls the cement slurry to flow to the upper part of the circulation drum 4, the slurry flows out from the outlet 41, and then flows from the gap between the circulation drum 4 and the mixing drum 1 to the upper part of the circulation drum 4. The lower part flows to form a circulation loop, so that the cement slurry forms a circulation loop during the stirring process, so that the slurry is stirred more uniformly.

2, the side wall of the circulation cylinder 4 is covered with filter holes 42, and the filter holes 42 are evenly arranged on the peripheral wall of the circulation cylinder 4. When the slurry is stirred, the slurry can flow out of the circulation cylinder 4 from the filter holes 42. However, the unstirred cement blocks inside the cement slurry will be blocked at the filter hole 42, and the cement blocks attached to the inner wall of the circulating cylinder 4 will be scattered under the centrifugal action of the stirring screw rotation, so that the cement slurry is more uniform and not Contains cement blocks.

Referring to FIG. 1 , in order to facilitate the discharge of the slurry inside the mixing drum 1 from the discharge port 12 , the bottom of the mixing drum 1 is inclined and the position of the inclined direction is gradually lowered toward the discharge port 12 . When the slurry is relatively small, the slurry can be completely discharged from the discharge port 12 along the inclined plane. Further, three support rods 5 are arranged at the bottom of the mixing drum 1 at uniform intervals along the circumferential direction of the mixing drum 1 , and the three support rods 5 are in a figure-eight shape and are arranged outward. In order to facilitate the movement of the mixer, universal wheels 6 are respectively provided at the bottom of the support rod 5 .

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (7)

1. A circulating cement mixer for municipal road construction, comprising a mixing drum (1), an end cover (11) is fixed on the top of the mixing drum (1), and the top surface of the end cover (11) is on the end cover A drive motor (2) is arranged at the central position of (11), and a discharge port (12) is arranged on the bottom side wall of the mixing drum (1). It is characterized in that: the drive end of the drive motor (2) drives the A stirring paddle (3) extending into the interior of the stirring drum (1) through the end cover (11) is connected, and the lower end of the stirring paddle (3) is rotatably connected with the bottom of the stirring drum (1). ) is fixed with a spiral blade (31) capable of rolling the slurry upward, and the outer casing of the stirring paddle (3) is provided with a circulating cylinder (4) that is coaxial with the stirring drum (1) and has openings at both ends. , the upper end of the circulation drum (4) is fixed on the end cover (11), the lower end and the bottom of the mixing drum (1) have a gap, and there is a gap between the outer wall of the circulation drum (4) and the inner wall of the mixing drum (1) In cooperation, a passage (41) for the slurry to pass through is opened on the peripheral wall of the upper end of the circulation cylinder (4). 2 . The circulating cement mixer for municipal road construction according to claim 1 , characterized in that: a plurality of the ports ( 41 ) are opened at even intervals along the circumferential direction of the circulating cylinder ( 4 ). 3 . 3 . The circulating cement mixer for municipal road construction according to claim 1 , wherein the side wall of the circulating cylinder ( 4 ) is covered with filter holes ( 42 ). 4 . 4. A circulating cement mixer for municipal road construction according to claim 1, characterized in that: the end cover (11) is provided with a feeding port (13), and the feeding port (13) is arranged on the Between the side wall of the mixing drum (1) and the outer wall of the circulation drum (4), a feeding door (131) capable of closing the feeding port (13) is provided at the feeding port (13). 5 . The circulating cement mixer for municipal road construction according to claim 1 , wherein the bottom of the mixing drum ( 1 ) is inclined and the position of the inclination direction is gradually lowered toward the discharge port ( 12 ). 6 . 6. The circulating cement mixer for municipal road construction according to claim 1, wherein the bottom of the mixing drum (1) is provided with at least three support rods (5) along the circumferential direction of the mixing drum (1). ), the support rods (5) are evenly spaced along the circumferential direction of the mixing drum (1). 7 . The circulating cement mixer for municipal road construction according to claim 6 , wherein the bottom of the support rod ( 5 ) is provided with a universal wheel ( 6 ). 8 .

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