CN214521051U

CN214521051U - Multistage agitating unit of concrete

Info

Publication number: CN214521051U
Application number: CN202023018718.3U
Authority: CN
Inventors: 俞裕星; 许广森; 俞建松
Original assignee: Shenzhen Hengxing Building Material Co ltd
Current assignee: Shenzhen Hengxing Building Material Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-10-29
Anticipated expiration: 2030-12-14

Abstract

The utility model belongs to the technical field of the technique of concrete mixing device and specifically relates to a multistage agitating unit of concrete is related to, it includes the churn, still including set up in rabbling mechanism in the churn, the rabbling mechanism includes first stirring subassembly and second stirring subassembly, first stirring subassembly includes (mixing) shaft and stirring frame, the (mixing) shaft rotate connect in the churn, the stirring frame is arranged in on the (mixing) shaft, be provided with on the churn and be used for the drive the (mixing) shaft is around its self axis pivoted drive assembly. This application can carry out the secondary stirring to the raw materials in the churn, has guaranteed the stirring quality, has shortened required churning time to a certain extent, and then has improved rabbling mechanism's stirring efficiency.

Description

Multistage agitating unit of concrete

Technical Field

The application relates to the technical field of concrete mixing devices, in particular to a multistage mixing device for concrete.

Background

The mixing is an extremely important process in the concrete production process, the mixing proportion of the concrete is designed for the purpose of enabling fine aggregates to just fill gaps of coarse aggregates and enabling cement colloid to be uniformly distributed on the surfaces of the coarse and fine aggregates, and the most compact high-quality concrete can be obtained only by uniformly mixing the mixed materials. Meanwhile, the concrete is plasticized and reinforced by stirring, so that the concrete stirring device is one of core devices for concrete production.

The concrete mixing device generally comprises a frame, a mixing drum, a mixing shaft, a mixing shovel piece and a driving piece, wherein the mixing drum is arranged on the frame, a feeding hole and a discharging hole are formed in the outer side of the mixing drum, the mixing shovel piece is fixedly connected onto the mixing shaft, the mixing shovel piece is positioned in the mixing drum, and the mixing shaft is rotatably connected to the mixing drum. When the stirring device works, the driving piece drives the stirring shaft to rotate, so that the stirring shovel pieces rotate to stir and mix the aggregates in the stirring cylinder.

With respect to the related art among the above, the inventors consider that the following technical drawbacks exist: the single-stage stirring device is long in stirring time and not easy to fully stir mixed materials, so that the efficiency of the concrete stirring device is not high, and the production idea of energy conservation and environmental protection is not met. For this reason, further improvement is awaited.

SUMMERY OF THE UTILITY MODEL

In order to improve the long and not abundant problem that leads to inefficiency of stirring time of concrete mixing plant in the use, the application provides a concrete's multistage agitating unit.

The application provides a multistage agitating unit of concrete adopts following technical scheme:

the utility model provides a multistage agitating unit of concrete, includes the churn, still including set up in rabbling mechanism in the churn, the rabbling mechanism includes first stirring subassembly and second stirring subassembly, first stirring subassembly includes (mixing) shaft and stirring frame, the (mixing) shaft rotate connect in the churn, the stirring frame is arranged in on the (mixing) shaft, be provided with on the churn and be used for the drive the (mixing) shaft is around its self axis pivoted drive assembly.

Adopt above-mentioned technical scheme, stir the material in the churn through the first stirring subassembly that sets up and second stirring subassembly, under drive assembly's effect, the (mixing) shaft rotates and drives the agitator and rotate the material to the churn in and stir, and meanwhile, second stirring subassembly carries out the secondary to the material and stirs, has guaranteed the stirring quality, has shortened required churning time to a certain extent, and then has improved rabbling mechanism's stirring efficiency.

Optionally, the second stirring subassembly including rotate connect in the agitator frame with dwang between the (mixing) shaft and rotation set up in stirring leaf on the dwang, be provided with on the agitator frame and be used for the drive the dwang is around its self axis pivoted power spare.

Through adopting above-mentioned technical scheme, when stirring, under the effect of power spare, the dwang rotates and drives the stirring leaf that sets up on the dwang and rotate and carry out the secondary stirring with the material to in the churn, in addition, because the stirring leaf rotates and connects on the dwang, when the stirring leaf wholly revolutes the axis of dwang and carries out the pivoted, the stirring leaf receives the reaction force of the material in the churn, and the stirring leaf can take place the rotation around its self central line.

Optionally, the stirring shaft is sleeved with an installation sleeve, a rolling bearing is embedded in the installation sleeve, and one end of the rotating rod is rotatably connected onto the stirring shaft through the rolling bearing.

Through adopting above-mentioned technical scheme, the antifriction bearing that sets up has reduced the mechanical wear that the dwang rotated the in-process and probably exists, has improved the rotation smoothness nature of dwang.

Optionally, the driving assembly includes a stirring motor disposed on the stirring drum, a driving gear coaxially sleeved on the output shaft of the stirring motor, and a driven gear coaxially sleeved on the stirring shaft and engaged with the driving gear.

Through adopting above-mentioned technical scheme, when stirring, switch-on agitator motor's power makes agitator motor's output shaft operation and drives the driving gear rotation, and the driving gear passes through driven gear and gives the (mixing) shaft with power transmission, and the (mixing) shaft rotates and drives stirring frame and dwang and rotate around the axis of (mixing) shaft together, and under the combined action of stirring frame and dwang, the material stirring of paddle churn is even.

Optionally, the power part comprises a driving motor arranged on the stirring frame, and an output shaft of the driving motor is coaxially and fixedly connected with one end, far away from the stirring shaft, of the rotating rod.

Through adopting above-mentioned technical scheme, when stirring, switch-on driving motor's power makes driving motor's output shaft operation to drive the dwang and rotate, the dwang rotates and drives the stirring leaf that is fixed in on the dwang and rotates, carries out the secondary stirring to the concrete, is favorable to guaranteeing rabbling mechanism's stirring quality, and then improves rabbling mechanism's stirring efficiency.

Optionally, a plurality of key bars are arranged on the circumferential side of the stirring shaft along the axial direction of the stirring shaft, and key grooves matched with the key bars are arranged on the mounting sleeve.

By adopting the technical scheme, the installation sleeve is radially fixed through the matching of the key strips and the key grooves, the possibility that the installation sleeve automatically rotates on the stirring shaft is reduced, and the improvement of the working stability of the stirring mechanism is facilitated.

Optionally, the stirring shaft is sleeved with a locking ring for fixing the mounting sleeve at a predetermined position, and the locking ring abuts against the end of the mounting sleeve.

By adopting the technical scheme, the installation sleeve is fixed by the locking ring, the possibility of axial sliding of the installation sleeve on the stirring shaft is reduced, and the working reliability of the stirring mechanism is ensured to a certain extent.

Optionally, bristles for cleaning the inner wall of the stirring barrel are arranged on the stirring frame.

Through adopting above-mentioned technical scheme, the brush hair of setting can be scraped the compounding of adhesion on the churn inner wall, is favorable to guaranteeing the stirring quality.

In summary, the present application includes at least one of the following beneficial technical effects:

1. under the matching of the first stirring assembly and the second assembly, the raw materials in the stirring cylinder can be stirred for the second time, so that the stirring quality is ensured, the required stirring time is shortened to a certain extent, and the stirring efficiency of the stirring mechanism is improved;

2. the smoothness of the rotating rod in rotation is improved through the arranged rolling bearing; the inner side of the mixing drum is cleaned through the arranged bristles, so that the condition that the mixing quality is influenced due to the fact that a large amount of raw materials are adhered to the inner side of the mixing drum is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present application;

fig. 3 is a schematic structural diagram of an agitation mechanism in an embodiment of the present application.

Description of reference numerals: 1. a mixing drum; 10. a column; 11. a feed inlet; 12. a feed hopper; 2. a stirring shaft; 21. installing a sleeve; 211. a keyway; 22. a driven gear; 23. a key bar; 24. a rolling bearing; 25. a locking ring; 3. a stirring frame; 31. brushing; 4. rotating the rod; 5. stirring blades; 51. a leaf body; 52. a petiole; 6. a stirring motor; 61. a driving gear; 7. a drive motor; 8. a frame plate.

Detailed Description

In order to make the purpose, technical solution and advantages of the present application more clear, the present application is further described in detail below with reference to fig. 1-3 and the embodiments.

The embodiment of the application discloses concrete multistage mixing device, referring to fig. 1 and 2, concrete multistage mixing device includes the frame, install churn 1 in the frame and set up the rabbling mechanism in churn 1. The frame in this embodiment includes four upright columns 10, and the four upright columns 10 are arranged at the bottom of the mixing drum 1 in a rectangular shape.

The whole mixing drum 1 is approximately of a hollow cylinder structure with two closed ends, and the mixing drum 1 is vertically arranged on a rack. Two feed inlets 11 are opened at the top of the mixing drum 1, and a feed hopper 12 is installed at the feed inlet 11. The inner bottom wall of the mixing drum 1 protrudes outwards, a spherical surface with a predetermined curvature is formed on the outer side of the mixing drum 1, so that a concave part with a predetermined curvature is formed on the inner bottom wall of the mixing drum 1, and a discharge hole (not shown) is formed at the bottom of the mixing drum 1.

During the use, send into churn 1 with the material from feed inlet 11 to make the rabbling mechanism work stir the material, after the stirring is accomplished, discharge the material from the discharge gate again.

Referring to fig. 2 and 3, the stirring mechanism in this embodiment includes a first stirring component and a second stirring component, and both the first stirring component and the second stirring component are disposed in the stirring cylinder 1. Wherein, first stirring subassembly includes (mixing) shaft 2, agitator 3 and drive assembly. The stirring shaft 2 is a long rod with a circular section, the stirring shaft 2 is vertically and rotatably connected to the middle part of the stirring drum 1, and the stirring frame 3 is fixed on the stirring shaft 2. The stirring frame 3 in this embodiment is a frame body formed by splicing two rectangular frames in a cross shape, and the stirring shaft 2 sequentially penetrates through the cross positions of the two rectangular frames and is fixedly connected with the stirring frame 3. Under the drive of the stirring shaft 2, the stirring frame 3 can rotate around the axis of the stirring shaft 2, and the diameter of the stirring frame 3 when rotating is slightly smaller than that of the stirring cylinder 1.

In order to enable the position of the stirring frame 3 close to the bottom of the stirring cylinder 1 to be matched with the concave part formed on the inner bottom wall of the stirring cylinder 1, the horizontal long rod on one side of the stirring frame 3 close to the bottom of the stirring cylinder 1 is set to be an arc rod matched with the radian of the concave part. In order to enable the stirring frame 3 to scrape off the mixed material adhered to the side wall of the stirring cylinder 1 in the rotating process, the brush bristles 31 are uniformly distributed at the positions, close to the side wall of the stirring cylinder 1 and the inner bottom wall of the stirring cylinder 1, of the stirring frame 3, and when the stirring frame 3 rotates around the axis of the stirring shaft 2, the brush bristles 31 are kept in contact with the stirring cylinder 1.

Referring to fig. 1 and 2, a driving assembly is disposed at the bottom of the mixing drum 1, and the driving assembly in this embodiment includes a mixing motor 6, a driving gear 61, and a driven gear 22. A frame plate 8 with an approximately inverted-L-shaped cross section is fixed at the bottom of the mixing drum 1, the mixing motor 6 is installed at the bottom of the mixing drum 1 through the frame plate 8, a driving gear 61 is coaxially fixed on an output shaft of the mixing motor 6, one end of a mixing shaft 2 penetrates through the mixing drum 1 and extends out of the mixing drum 1 by a preset length, a driven gear 22 is coaxially fixed at the end part of the mixing shaft 2 extending out of the mixing drum 1, and the driven gear 22 is meshed with the driving gear 61.

When stirring, the power of stirring motor 6 is switched on, so that the output shaft of stirring motor 6 rotates and drives driving gear 61 to rotate, driving gear 61 transmits power to stirring shaft 2 through driven gear 22, and stirring shaft 2 rotates and drives stirring frame 3 to rotate around the axis of stirring shaft 2, thereby achieving the purpose of stirring the materials in stirring cylinder 1. Meanwhile, the bristles 31 on the stirring frame 3 are kept in contact with the inner part of the stirring cylinder 1 in the rotating process, so that the materials adhered to the inner wall of the stirring cylinder 1 can be scraped off, and the stirring effect can be guaranteed.

Referring to fig. 3, the stirring shaft 2 is integrally formed with a plurality of splines 23, the splines 23 are arranged along the axial direction of the stirring shaft 2, the splines 23 in this embodiment are provided with a plurality of splines 23, and the plurality of splines 23 are distributed along the outer circumference of the stirring shaft 2 in an array. The stirring shaft 2 is further fixed with a mounting sleeve 21, the mounting sleeve 21 is approximately a rectangular parallelepiped structure with a square cross section, a through hole for the stirring shaft 2 to pass through is formed in the center of the mounting sleeve 21, wherein in order to enable the mounting sleeve 21 to be matched with the key strip 23 on the stirring shaft 2, a key groove 211 matched with the key strip 23 is formed in the mounting sleeve 21, and the key groove 211 is communicated with the through hole. The number of the mounting sleeves 21 in this embodiment is three, and the three mounting sleeves 21 are distributed at intervals along the axial direction of the stirring shaft 2.

Wherein, in order to carry out axial fixity to installation cover 21, still the cover is equipped with locking ring 25 on (mixing) shaft 2, and each installation cover 21 corresponds two locking rings 25, and two locking rings 25 are fixed in the top and the bottom of installation cover 21 respectively, and locking ring 25 and the top and the bottom butt of installation cover 21.

Referring to fig. 3, the second stirring assembly includes a rotating rod 4, a stirring vane 5 and a power member. Wherein, dwang 4 is the long rod of circular shape for the cross-section, and dwang 4 rotates to be connected between installation cover 21 and agitator 3, and the axis of dwang 4 intersects and perpendicular with the axis of (mixing) shaft 2. Four lateral surfaces of the mounting sleeve 21 are all embedded with rolling bearings 24, the axis of the rolling bearings 24 is collinear with the axis of the rotating rod 4, and one end of the rotating rod 4 is inserted into the inner ring of the rolling bearings 24.

The driving piece in this embodiment is driving motor 7, and driving motor 7 is through waterproof insulation treatment, and driving motor 7 installs on stirring frame 3, and the output shaft of driving motor 7 and dwang 4 keep away from the coaxial link joint of tip of antifriction bearing 24. The stirring blade 5 is rotatably disposed on the rotating rod 4, the stirring blade 5 includes a blade body 51 and a blade stalk 52, the blade body 51 is a rectangular piece, the blade stalk 52 is a long rod with a circular cross section, and the blade stalk 52 is fixed on the blade body 51. The rotating rod 4 is fixed with a boss for inserting the petiole 52, one end of the petiole 52 far away from the blade body 51 is rotatably connected to the boss, and when the installation is completed, the axis of the petiole 52 is intersected with the axis of the rotating rod 4, and the included angle is an acute angle with a preset angle. All be provided with the multi-disc stirring leaf 5 on each dwang 4, stirring leaf 5 is two lists of symmetry and sets up on dwang 4.

When stirring, the power supply of the stirring motor 6 is switched on, so that the stirring motor 6 drives the stirring frame 3 to rotate. Meanwhile, the power supply of the driving motor 7 is switched on, so that the output shaft of the driving motor 7 runs, the rotating rod 4 is driven to rotate, and the rotating rod 4 rotates to drive the stirring blade 5 fixed on the rotating rod 4 to rotate. Thereby make the agitator 3 and dwang 4 rotate around the axis of (mixing) shaft 2 simultaneously and carry out the axial stirring to the material, stirring leaf 5 then rotates around the axis of dwang 4 and carries out radial stirring to the material, under the combined action of agitator 3 and stirring leaf 5, reach the purpose that improves stirring efficiency.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a multistage agitating unit of concrete, includes churn (1), its characterized in that: still including set up in rabbling mechanism in churn (1), the rabbling mechanism includes first stirring subassembly and second stirring subassembly, first stirring subassembly includes (mixing) shaft (2) and agitator (3), (mixing) shaft (2) rotate connect in churn (1), agitator (3) set up in on (mixing) shaft (2), be provided with on churn (1) and be used for the drive (mixing) shaft (2) are around its self axis pivoted drive assembly.

2. A multistage concrete mixing apparatus as claimed in claim 1, wherein: second stirring subassembly including rotate connect in stirring frame (3) with dwang (4) between (mixing) shaft (2) and rotate set up in stirring leaf (5) on dwang (4), be provided with on stirring frame (3) and be used for the drive dwang (4) are around its self axis pivoted power spare.

3. A multistage concrete mixing apparatus as claimed in claim 2, wherein: the cover is equipped with installation cover (21) on (mixing) shaft (2), it is equipped with antifriction bearing (24) to inlay on installation cover (21), the one end of dwang (4) is passed through antifriction bearing (24) rotate connect in on (mixing) shaft (2).

4. A multistage concrete mixing apparatus as claimed in claim 3, wherein: the driving assembly comprises a stirring motor (6) arranged on the stirring drum (1), a driving gear (61) coaxially sleeved on an output shaft of the stirring motor (6) and a driven gear (22) coaxially sleeved on the stirring shaft (2) and meshed with the driving gear (61).

5. A multistage mixing apparatus for concrete according to claim 4, wherein: the power part comprises a driving motor (7) arranged on the stirring frame (3), and an output shaft of the driving motor (7) is coaxially and fixedly connected with one end of the stirring shaft (2) and far away from the rotating rod (4).

6. A multistage concrete mixing apparatus as claimed in claim 5, wherein: the periphery of the stirring shaft (2) is provided with a plurality of key strips (23) along the axial direction of the stirring shaft, and the installation sleeve (21) is provided with key grooves (211) matched with the key strips (23).

7. A multistage concrete mixing apparatus as claimed in claim 6, wherein: the stirring shaft (2) is sleeved with a locking ring (25) for fixing the mounting sleeve (21) at a preset position, and the locking ring (25) is abutted to the end part of the mounting sleeve (21).

8. A multistage concrete mixing apparatus as claimed in claim 7, wherein: the stirring frame (3) is provided with bristles (31) used for cleaning the inner wall of the stirring cylinder (1).