CN108748670B - Heat preservation formula concrete mixing device - Google Patents
Heat preservation formula concrete mixing device Download PDFInfo
- Publication number
- CN108748670B CN108748670B CN201810475921.1A CN201810475921A CN108748670B CN 108748670 B CN108748670 B CN 108748670B CN 201810475921 A CN201810475921 A CN 201810475921A CN 108748670 B CN108748670 B CN 108748670B
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- Prior art keywords
- stirrer
- stirring
- planetary
- shaft
- central
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/46—Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing, e.g. by introducing vapour
- B28C5/466—Heating, e.g. using steam
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention provides a heat preservation type concrete stirring device which comprises a stirring drum, a central stirrer, a first planetary stirrer, a second planetary stirrer and a driving mechanism, wherein the central stirrer is arranged on the stirring drum; the outer side wall of the mixing drum sinks along the radial direction of the mixing drum to form an annular groove, a heating coil is arranged in the annular groove, a heat conduction insulating layer is arranged between the heating coil and the wall of the annular groove, and an insulating heat insulation drum is sleeved outside the mixing drum; the central stirrer is coaxially arranged with the stirring drum, the central stirrer, the first planetary stirrer and the second planetary stirrer are arranged in parallel and are all connected with the driving mechanism, the driving mechanism drives the central stirrer to rotate around the axis of the stirring drum, and the driving mechanism also drives the first planetary stirrer to revolve around the axis of the stirring drum and rotate around the rotation axis of the first planetary stirrer; the uniformity of the final concrete can be effectively ensured, and the temperature balance of the concrete can be ensured.
Description
Technical Field
The invention relates to a stirring device, in particular to a heat preservation type concrete stirring device.
Background
Concrete is a commonly used building material, and the concrete is formed by stirring sand, cement, rubble and water, and concrete mixing is realized through the agitator, and current concrete agitator has following defect: in the concrete mixing process, concrete near a mixing paddle of the mixer can be fully mixed, but concrete far away from the mixing paddle cannot be fully mixed, and particularly, the concrete near the side wall of a container of the mixer often has a deposition phenomenon, so that the quality of the concrete is seriously influenced; on the other hand, because the performance of concrete is affected by temperature, the existing stirrer cannot maintain the temperature of concrete, and particularly in a low-temperature environment, the concrete is frozen and thawed to be damaged due to too low temperature, so that the performance of concrete is reduced, and the building quality is seriously affected.
Therefore, in order to solve the above technical problems, it is necessary to provide a new stirring device.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a heat-retaining concrete mixer, which can sufficiently mix concrete in a mixing container, has no mixing dead angle during mixing, can effectively ensure uniformity of the final concrete, can maintain the concrete within a proper temperature range in a low-temperature environment, and can ensure temperature balance of the concrete, thereby ensuring quality of the concrete.
The invention provides a heat preservation type concrete stirring device which comprises a stirring drum, a central stirrer, a first planetary stirrer, a second planetary stirrer and a driving mechanism, wherein the central stirrer is arranged on the stirring drum;
the outer side wall of the mixing drum sinks along the radial direction of the mixing drum to form an annular groove, a heating coil is arranged in the annular groove, a heat conduction insulating layer is arranged between the heating coil and the wall of the annular groove, and an insulating heat insulation drum is sleeved outside the mixing drum;
the central stirrer is coaxially arranged with the stirring drum, the central stirrer, the first planetary stirrer and the second planetary stirrer are arranged in parallel and are all connected with the driving mechanism, the driving mechanism drives the central stirrer to rotate around the axis of the stirring drum, and the driving mechanism also drives the first planetary stirrer to revolve around the axis of the stirring drum and rotate around the rotation axis of the first planetary stirrer;
the structure of the first planetary stirrer is the same as that of the central stirrer, the central stirrer comprises a rotating shaft and a spiral stirring blade arranged at the middle lower part of the rotating shaft, the spiral stirring blade comprises a first spiral sheet and a second spiral sheet, the spiral radius of the first spiral sheet is larger than that of the second spiral sheet, and the first spiral sheet and the second spiral sheet are alternately arranged along the axial direction of the rotating shaft;
the second planetary stirrer comprises a planetary stirring shaft and a stirring plate, the stirring plate is fixedly arranged on the planetary stirring shaft, and the second planetary stirrer is fixedly arranged on the driving mechanism.
Further, the driving mechanism comprises a planetary gear assembly, a driving motor, a speed reducer and a planet carrier;
the planetary gear assembly comprises a gear ring, a sun gear and three planet gears, the sun gear and the gear ring are coaxially arranged, the three planet gears are uniformly arranged along the circumferential direction of the sun gear, and the three planet gears are all meshed with the sun gear and the gear ring;
the power output end of the driving motor is in transmission connection with the power output end of the speed reducer, the power output end of the speed reducer is in transmission connection with a gear shaft of the sun gear, the upper end of a rotating shaft of the first planetary stirrer penetrates through the planet carrier and is in transmission connection with one of the three planet gears, and the rotating shaft of the first planetary stirrer is in rotating fit with the planet carrier; the upper end of the rotating shaft of the central stirrer penetrates through the planet carrier and is in coaxial transmission connection with the sun gear, the rotating shaft of the central stirrer is fixedly matched with the planet carrier, and the upper end of the planetary stirring shaft of the second planetary stirrer is fixedly arranged on the planet carrier.
Furthermore, the planet carrier comprises a shaft sleeve and three beams, the shaft sleeve is fixedly sleeved on a rotating shaft of the central stirrer, one ends of the three beams are fixedly connected with the outer side wall of the shaft sleeve, the extending directions of the central lines of the three beams in the length direction are compared with the axial line of the shaft sleeve, and the three beams are uniformly arranged around the circumferential direction of the shaft sleeve;
the other end of the three beams is fixedly provided with a support column, the support column is perpendicular to the beams, and the lower ends of the support columns are in running fit with the mixing drum.
Furthermore, the upper end outer side wall of the mixing drum sinks along the axial direction of the mixing drum to form a shoulder, a thrust bearing is fixedly arranged on the shoulder, a lower shaft ring of the thrust bearing is fixedly connected with the shoulder, and the upper surface of an upper shaft ring of the thrust bearing is fixedly connected with the support column.
Further, one of the three crossbeams is provided with the shaft hole, and the axis of rotation of first planet agitator passes the shaft hole, is provided with rolling bearing between the axis of rotation of first planet agitator and the shaft hole, is provided with the layer board at the lower fixed surface that is provided with the crossbeam in shaft hole, the layer board is provided with the via hole that the axis of rotation that is used for first planet agitator passed, the aperture of via hole is less than the aperture in shaft hole.
Furthermore, the stirring plate of the second planetary stirrer is of an arc-shaped plate structure, and an included angle is formed between the length direction of the stirring plate and the axis of the planetary stirring shaft.
Further, a discharge hole is formed in the bottom of the stirring cylinder.
The invention has the beneficial effects that: according to the stirring device, the first planetary stirrer rotates and revolves around the axis of the stirring cylinder, and the stirring effect of the central stirrer is combined, so that concrete in the whole stirring cylinder can be fully mixed, the structures of the first planetary stirrer and the spiral stirring blade of the central stirrer can push the transverse stirring of the concrete and can also realize the longitudinal stirring of the concrete, the effect of the second planetary stirrer can fully push the movement of the concrete in the stirring cylinder, so that the whole stirring cylinder does not have a stirring dead angle, the stirring performance of the whole stirring device is effectively improved, and the uniformity of the concrete is effectively ensured; moreover, the structure through the churn can make the agitating unit keep the concrete within suitable temperature range in low temperature environment, moreover under the effect of central agitator and two planet agitators for the temperature equilibrium of the concrete in the whole churn is good, thereby can effectively ensure the quality of concrete, and then improves the quality of building.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the planetary gear assembly of the present invention.
Fig. 3 is a schematic top view of the planetary carrier of the present invention.
FIG. 4 is a schematic view of the structure of the stirring plate of the second planetary stirrer.
Detailed Description
The invention is described in further detail below with reference to the drawings, in which:
the invention provides a heat preservation type concrete stirring device which comprises a stirring cylinder 1, a central stirrer, a first planetary stirrer, a second planetary stirrer and a driving mechanism, wherein the central stirrer is arranged on the stirring cylinder;
the outer side wall of the mixing drum 1 sinks along the radial direction of the mixing drum to form an annular groove 4, a heating coil 6 is arranged in the annular groove 4, a heat conduction insulating layer 8 is arranged between the heating coil 6 and the groove wall of the annular groove 4, and an insulating heat-insulating drum 5 is sleeved outside the mixing drum 1; the heat conducting insulating layer is made of the existing heat conducting insulating materials, such as heat conducting silica gel, materials made of biphenyl tetracarboxylic dianhydride and diphenyl ether diamine (R type) or m-phenylenediamine (S type), and the like; the insulating and heat-insulating cylinder is made of the existing insulating and heat-insulating materials, such as ceramic fibers;
the central stirrer is coaxially arranged with the mixing drum 1, the central stirrer, the first planetary stirrer and the second planetary stirrer are arranged in parallel and are all connected with the driving mechanism, the driving mechanism drives the central stirrer to rotate around the axis of the mixing drum, and the driving mechanism also drives the first planetary stirrer to revolve around the axis of the mixing drum and rotate around the rotation axis of the first planetary stirrer;
the first planetary stirrer and the central stirrer have the same structure, the central stirrer comprises a rotating shaft 20 and a spiral stirring blade arranged at the middle lower part of the rotating shaft 20, the spiral stirring blade comprises a first spiral sheet 71 and a second spiral sheet 72, the spiral radius of the first spiral sheet 71 is larger than that of the second spiral sheet 72, and the first spiral sheet 71 and the second spiral sheet 72 are alternately arranged along the axial direction of the rotating shaft; wherein the rotating shaft is coaxial with the stirring cylinder;
the second planetary stirrer comprises a planetary stirring shaft 22 and a stirring plate 2, the stirring plate 2 is fixedly arranged on the planetary stirring shaft 22, and the second planetary stirrer is fixedly arranged on the driving mechanism; according to the stirring device, the first planetary stirrer rotates and revolves around the axis of the stirring cylinder, and the stirring effect of the central stirrer is combined, so that concrete in the whole stirring cylinder can be fully mixed, the structures of the first planetary stirrer and the spiral stirring blade of the central stirrer can push the transverse stirring of the concrete and can also realize the longitudinal stirring of the concrete, the effect of the second planetary stirrer can fully push the movement of the concrete in the stirring cylinder, so that the whole stirring cylinder does not have a stirring dead angle, the stirring performance of the whole stirring device is effectively improved, and the uniformity of the concrete is effectively ensured; moreover, the structure through the churn can make the agitating unit keep the concrete within suitable temperature range in low temperature environment, moreover under the effect of central agitator and two planet agitators for the temperature equilibrium of the concrete in the whole churn is good, thereby can effectively ensure the quality of concrete, and then improves the quality of building.
In the present embodiment, the driving mechanism includes a planetary gear assembly 16, a driving motor 17, a reducer 18, and a planet carrier;
the planetary gear assembly 16 comprises a gear ring 161, a sun gear 163 and three planet gears 162, the sun gear 163 and the gear ring 161 are coaxially arranged, the three planet gears 162 are uniformly arranged along the circumferential direction of the sun gear 163, and the three planet gears are all meshed with the sun gear and the gear ring;
the power output end of the driving motor 17 is in transmission connection with the power output end of the speed reducer 18, the power output end of the speed reducer 18 is in transmission connection with a gear shaft of the sun gear 163, the upper end of a rotating shaft 21 of the first planetary stirrer penetrates through the planet carrier and is in transmission connection with one of the three planet gears, and the rotating shaft 21 of the first planetary stirrer is in rotating fit with the planet carrier; the planet carrier is passed and is connected with sun gear coaxial drive in the upper end of the axis of rotation 20 of central agitator, and the axis of rotation and the planet carrier fixed coordination of central agitator, the fixed setting in planet carrier in the upper end of the planet (mixing) shaft of second planet agitator, the (mixing) shaft of second planet agitator and the axis of rotation of first planet agitator are located different crossbeams.
The planet carrier comprises a shaft sleeve 19 and three beams 12, the shaft sleeve 19 is fixedly sleeved on a rotating shaft 20 of the central stirrer, one ends of the three beams 12 are fixedly connected with the outer side wall of the shaft sleeve 19, the extending direction of the central line of the three beams 12 in the length direction is compared with the axis of the shaft sleeve 19, and the three beams are uniformly arranged around the circumferential direction of the shaft sleeve;
the other end of three crossbeam 12 is all fixed and is provided with support column 11, support column 11 is perpendicular with crossbeam 12, the lower extreme and the 1 normal running fit of churn of support column 11, through above-mentioned structure, can ensure on the one hand that central agitator rotates around the axis of churn, on the other hand can also effectively drive first planet agitator rotation and revolve around the axis of rotation of central agitator to can guarantee the stirring sufficiency of concrete, of course, first planet agitator and second planet agitator set up on the crossbeam of difference, thereby can avoid two planet agitators to take place the operation conflict.
In this embodiment, the upper end lateral wall of churn 1 sinks along the axial of churn and forms circular bead 9, the fixed thrust bearing 10 that is provided with on circular bead 9, thrust bearing 10's lower race and circular bead fixed connection, thrust bearing 10's the upper surface and the support column fixed connection of last race, through this kind of structure, can provide the atress strong point for the planet carrier to make whole actuating mechanism can normal operating.
In this embodiment, one of the three beams 12 is provided with a shaft hole 23, the rotating shaft 21 of the first planetary agitator passes through the shaft hole 23, a rotating bearing 14 is arranged between the rotating shaft 21 of the first planetary agitator and the shaft hole, a supporting plate 13 is fixedly arranged on the lower surface of the beam 12 provided with the shaft hole 23, the supporting plate 13 is provided with a through hole 15 for the rotating shaft of the first planetary agitator to pass through, and the aperture of the through hole 15 is smaller than that of the shaft hole 23.
In this embodiment, the stirring plate 2 of the second planetary stirrer is an arc-shaped plate structure, and the length direction of the stirring plate 2 has an included angle with the axis of the planetary stirring shaft 22, wherein one side of the stirring plate is fixedly connected with the stirring shaft of the second planetary stirrer, the other opposite side of the stirring plate affects the inner side wall of the stirring cylinder and has a certain gap with the inner side wall of the stirring cylinder, the gap is not too large, so as to prevent the concrete from being insufficiently stirred, and the gap is not too small, so as to prevent the occurrence of the clamping phenomenon due to the influence of the crushed stone, the cement and the like, generally, the gap is slightly smaller than the required diameter of the crushed stone in the concrete, and the plurality of stirring plates of the second planetary stirrer are arranged at equal intervals along the axis of the stirring shaft, the direction of the concave arc surface of the stirring plate faces the rotation direction of the planet carrier, and by this structure, on the one hand, because, can reduce the rotation resistance to a certain extent, on the other hand, can ensure that the concrete is by intensive mixing, avoid the appearance at stirring dead angle.
In the embodiment, the discharge port 3 is formed in the bottom of the stirring cylinder, so that the fully stirred concrete can be conveniently discharged; the discharge port is in a closed state in the feeding and stirring processes, and the discharge port is realized by adopting the existing structure.
The fixing is performed by welding, so that the structural strength can be ensured, and the upper part and the lower part of the fixing are referred to the upper part and the lower part of the figure.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (5)
1. The utility model provides a heat preservation formula concrete mixing device which characterized in that: the device comprises a mixing drum, a central stirrer, a first planetary stirrer, a second planetary stirrer and a driving mechanism;
the outer side wall of the mixing drum sinks along the radial direction of the mixing drum to form an annular groove, a heating coil is arranged in the annular groove, a heat conduction insulating layer is arranged between the heating coil and the wall of the annular groove, and an insulating heat insulation drum is sleeved outside the mixing drum;
the central stirrer is coaxially arranged with the stirring drum, the central stirrer, the first planetary stirrer and the second planetary stirrer are arranged in parallel and are all connected with the driving mechanism, the driving mechanism drives the central stirrer to rotate around the axis of the stirring drum, and the driving mechanism also drives the first planetary stirrer to revolve around the axis of the stirring drum and rotate around the rotation axis of the first planetary stirrer;
the structure of the first planetary stirrer is the same as that of the central stirrer, the central stirrer comprises a rotating shaft and a spiral stirring blade arranged at the middle lower part of the rotating shaft, the spiral stirring blade comprises a first spiral sheet and a second spiral sheet, the spiral radius of the first spiral sheet is larger than that of the second spiral sheet, and the first spiral sheet and the second spiral sheet are alternately arranged along the axial direction of the rotating shaft;
the second planetary stirrer comprises a planetary stirring shaft and a stirring plate, the stirring plate is fixedly arranged on the planetary stirring shaft, and the second planetary stirrer is fixedly arranged on the driving mechanism;
the driving mechanism comprises a planetary gear assembly, a driving motor, a speed reducer and a planet carrier;
the planetary gear assembly comprises a gear ring, a sun gear and three planet gears, the sun gear and the gear ring are coaxially arranged, the three planet gears are uniformly arranged along the circumferential direction of the sun gear, and the three planet gears are all meshed with the sun gear and the gear ring;
the power output end of the driving motor is in transmission connection with the power output end of the speed reducer, the power output end of the speed reducer is in transmission connection with a gear shaft of the sun gear, the upper end of a rotating shaft of the first planetary stirrer penetrates through the planet carrier and is in transmission connection with one of the three planet gears, and the rotating shaft of the first planetary stirrer is in rotating fit with the planet carrier; the upper end of a rotating shaft of the central stirrer penetrates through the planet carrier and is in coaxial transmission connection with the sun gear, the rotating shaft of the central stirrer is fixedly matched with the planet carrier, and the upper end of a planetary stirring shaft of the second planetary stirrer is fixedly arranged on the planet carrier;
the stirring plate of the second planetary stirrer is of an arc-shaped plate structure, and an included angle is formed between the length direction of the stirring plate and the axis of the planetary stirring shaft.
2. The insulated concrete mixing apparatus of claim 1, wherein: the planet carrier comprises a shaft sleeve and three cross beams, the shaft sleeve is fixedly sleeved on a rotating shaft of the central stirrer, one ends of the three cross beams are fixedly connected with the outer side wall of the shaft sleeve, the extending direction of the central line of the three cross beams in the length direction is relative to the axis of the shaft sleeve, and the three cross beams are uniformly arranged around the circumference direction of the shaft sleeve;
the other end of the three beams is fixedly provided with a support column, the support column is perpendicular to the beams, and the lower ends of the support columns are in running fit with the mixing drum.
3. The insulated concrete mixing apparatus of claim 2, wherein: the outer side wall of the upper end of the stirring cylinder sinks along the axial direction of the stirring cylinder to form a shoulder, a thrust bearing is fixedly arranged on the shoulder, a lower shaft ring of the thrust bearing is fixedly connected with the shoulder, and the upper surface of an upper shaft ring of the thrust bearing is fixedly connected with the support column.
4. The insulated concrete mixing apparatus of claim 2, wherein: one of the three crossbeams is provided with the shaft hole, and the axis of rotation of first planet agitator passes the shaft hole, is provided with rolling bearing between the axis of rotation of first planet agitator and the shaft hole, is provided with the layer board at the lower fixed surface who is provided with the crossbeam in shaft hole, the layer board is provided with the via hole that the axis of rotation that is used for first planet agitator passed, the aperture of via hole is less than the aperture in shaft hole.
5. The insulated concrete mixing apparatus of claim 1, wherein: and a discharge hole is formed in the bottom of the stirring cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475921.1A CN108748670B (en) | 2018-05-17 | 2018-05-17 | Heat preservation formula concrete mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475921.1A CN108748670B (en) | 2018-05-17 | 2018-05-17 | Heat preservation formula concrete mixing device |
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| Publication Number | Publication Date |
|---|---|
| CN108748670A CN108748670A (en) | 2018-11-06 |
| CN108748670B true CN108748670B (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810475921.1A Expired - Fee Related CN108748670B (en) | 2018-05-17 | 2018-05-17 | Heat preservation formula concrete mixing device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110405941A (en) * | 2019-06-30 | 2019-11-05 | 筑邦建设集团股份有限公司 | A kind of constant temperature small-sized mortar mixer |
| CN110480827A (en) * | 2019-08-27 | 2019-11-22 | 西安工业大学 | A kind of method of mechanization clay molding |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU442936A1 (en) * | 1973-02-08 | 1974-09-15 | Центральный научно-исследовательский и проектный институт типового и экспериментального проектирования жилища | Mixer |
| CN201432368Y (en) * | 2009-05-25 | 2010-03-31 | 福建南方路面机械有限公司 | Asphalt cement sand grout blending host machine |
| CN103042600B (en) * | 2013-01-15 | 2014-11-05 | 长安大学 | Velocity gradient optimized type planet agitator |
| CN103817796B (en) * | 2014-03-11 | 2016-08-17 | 福建南方路面机械有限公司 | Spiral shell leaf formula planetary vertical-shaft blender |
| CN205416026U (en) * | 2016-03-09 | 2016-08-03 | 天津市禹杰宏业混凝土有限公司 | Automatic change concrete proportioning machine |
| CN106346606A (en) * | 2016-10-14 | 2017-01-25 | 广西大学 | Constructional engineering concrete mixer |
| CN206510209U (en) * | 2017-01-06 | 2017-09-22 | 山东飞越钢结构工程有限公司 | A kind of construction concrete agitation mixer |
| CN106738338A (en) * | 2017-01-22 | 2017-05-31 | 长安大学 | A kind of reducing variable-pitch propeller upright planetary agitator |
| CN206551218U (en) * | 2017-03-04 | 2017-10-13 | 北京桥昌混凝土搅拌有限公司 | Cement mixer |
| CN107866180A (en) * | 2017-11-23 | 2018-04-03 | 江门市新会银洲湖纸业基地投资有限公司 | A kind of special mixing apparatus of construction |
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2018
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Granted publication date: 20200915 Termination date: 20210517 |