CN210786950U - Double-shaft mixer - Google Patents
Double-shaft mixer Download PDFInfo
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- CN210786950U CN210786950U CN201921292431.4U CN201921292431U CN210786950U CN 210786950 U CN210786950 U CN 210786950U CN 201921292431 U CN201921292431 U CN 201921292431U CN 210786950 U CN210786950 U CN 210786950U
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- shaft
- mixer
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Abstract
The utility model relates to a double-shaft mixer belongs to grain, powder, mortar, feed machinery technical field. The double-shaft mixer comprises a casing, wherein one side of the casing is supported and fixed by a speed reducer without a bearing, the other side of the casing is supported and fixed by two bearings, two rotors penetrate through the casing and are arranged on the speed reducer and the bearings, a shaft end seal is arranged between the casing and the rotors, a discharge door is arranged at the lower part of the casing, and a feeding upper cover is arranged at the upper part of the casing. The mixer reduces 2 bearings, reduces the manufacturing cost, and has more compact product structure, simple assembly and disassembly and lower maintenance difficulty; the speed reducer is in gear transmission, the rotating speeds of the two main shafts are synchronous, the transmission ratio is accurate, the transmission efficiency is high, and the noise is low.
Description
Technical Field
The utility model relates to a material mixing device, especially a double-shaft mixer in grain, powder, mortar, feed machinery field.
Background
There are two existing forms of twin-shaft mixers: one is a chain transmission mixer, a speed reducer and a main shaft are driven by a chain wheel and a chain, and the transmission mode has the problems of large power loss, unstable transmission, high noise, difficult maintenance and easy mutual collision of the chains; the second one is a double-shaft direct-connection mixer, the shaft ends of two main shafts are respectively connected with the shaft ends of output shafts of corresponding shaft-mounted reducers, the two reducers are kept synchronous through a coupling, and a motor and the reducers are driven through a belt. This structure has the disadvantages: the transmission efficiency is not high, the structure is complex, and the maintenance is difficult. The speed reducer and the rotor in the two schemes need to be supported by bearings, and particularly, the bearing cost of a large-size mixer is high, and the structure of the mixer is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a compact structure, with low costs, maintain few biax and mix machine to the not enough of prior art existence.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a double-shaft mixer, includes the casing, its characterized in that, casing one side is supported fixedly by the speed reducer, and the casing opposite side is supported fixedly by the bearing, the rotor run through the casing and install in the speed reducer with the bearing on, be equipped with the axle head between casing and the rotor and seal, the casing lower part is equipped with the discharge door, casing upper portion is equipped with the feeding upper cover.
As right the utility model discloses an improvement, the speed reducer includes the box, install the motor on the box, the first bevel gear of output shaft with the motor, with the second bevel gear of first bevel gear meshing, with first cylindrical gear and the second cylindrical gear of the coaxial rigid coupling of second bevel gear, with the left side gear train of first cylindrical gear meshing, the first main shaft of being connected with the left side gear train, with the right side gear train of second cylindrical gear meshing, the second main shaft of being connected with the right side gear train, first main shaft is by first cylindrical gear and left side gear train transmission, the second main shaft is by second cylindrical gear and right side gear train transmission, first main shaft, second main shaft rotational speed is the same, turn to opposite.
As right the utility model discloses an improve, the both ends of first main shaft and second main shaft all are provided with aligning roller bearing, aligning roller bearing is used for supporting the rotor.
As an improvement, the side of the mixing machine is provided with an air return pipeline. The air return pipeline is used for rapidly balancing the air pressure in the mixing chamber of the mixer during feeding and discharging, and effectively reduces the segregation of dust and materials.
As right the utility model discloses an improve, be equipped with big clearance door on the casing, be convenient for observe and inside clearance.
As right the utility model discloses an improve, the drive ratio between first cylindrical gear and the left side gear train equals the drive ratio between second cylindrical gear and the right side gear train. The number of the gears of the left side gear set and the right side gear set is different by odd numbers, so that the first main shaft and the second main shaft are opposite in rotation direction.
The left side gear train be left side cylinder gear train, the right side gear train be right side cylinder gear train.
Compared with the prior art, the utility model discloses beneficial effect is: the speed reducer enables the two main shafts to be synchronous through the gear set by the motor, the two main shafts synchronously keep the fixed speed ratio to rotate, the transmission ratio is accurate, and the damage caused by the interference of blades due to the change and the asynchronization of the rotating speed of the main shafts of the mixer is avoided. The speed reducer can be used as a bearing support rotor, 2 bearings are omitted, and the production cost of the mixer is reduced.
Drawings
FIG. 1 is a front view of one embodiment of a twin-shaft mixer of the present invention;
FIG. 2 is a left side view of one embodiment of a dual shaft mixer of the present invention;
FIG. 3 is a schematic structural view of an embodiment of a double-shaft mixer of the present invention;
fig. 4 is a schematic structural diagram of a speed reducer (i.e., a main shaft transmission mechanism of a double-shaft mixer) according to a preferred embodiment of the present invention, wherein arrows indicate the rotation direction of the main shaft;
fig. 5 is a plan view of a speed reducer according to a preferred embodiment of the present invention;
wherein, 1' is a shell; 2' a speed reducer; 3' a bearing; 4' a rotor; 5', sealing the shaft end; 6' discharge door; 7' upper cover; 1. a box body; 2. a motor; 3. a first bevel gear; 4. a second bevel gear; a first cylindrical gear; 52. a second cylindrical gear; 6. a left cylindrical gear set; 7. a first main shaft; 8, a right cylindrical gear set; 9. a second main shaft; 10. a self-aligning roller bearing; 11. cleaning the door; 12. and (4) a return air pipeline.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 3, a twin-shaft mixer: the device comprises a machine shell 1 ', one side of the machine shell 1 ' is supported and fixed by a speed reducer 2 ' without a bearing, the other side of the machine shell 1 ' is supported and fixed by two bearings 3 ', two rotors 4 ' penetrate through the machine shell 1 ', two ends of each rotor are respectively supported by the speed reducer 2 ' and the bearings 3 ' (the rotors are arranged on the speed reducer and the bearings), a shaft end seal 5 ' is arranged between the machine shell 1 ' and the rotors 4 ', a discharge door 6 ' is arranged at the lower part of the machine shell 1 ', and a feeding upper cover 7 ' is arranged at the upper part of the machine.
The mixer can be further improved on the basis of the improved double-shaft mixer. The side of the mixer is provided with an air return pipeline 12, and the air return pipeline 12 is used for rapidly balancing the air pressure in the mixing chamber of the mixer during feeding and discharging, thereby effectively reducing the segregation of dust and materials. A large cleaning door 11 is arranged on the machine shell 1' and is convenient to observe and clean the inside.
On the basis of the improved double-shaft mixer, the speed reducer can be further improved. The speed reducer 2' comprises a box body 1, a motor 2 is installed on the upper side of the box body 1 through bolts, an output shaft of the motor 2 is connected with a first bevel gear 3, the first bevel gear 3 is meshed with a second bevel gear 4, the second bevel gear 4 is coaxially and fixedly connected with a first cylindrical gear 51 and a second cylindrical gear 52, the first cylindrical gear 51 is connected with a first main shaft 7 through a left cylindrical gear set 6, the second cylindrical gear 52 is connected with a second main shaft 9 through a right cylindrical gear set 8, and the number of gears of the right cylindrical gear set 8 is larger than or smaller than that of the gears of the left cylindrical gear set 6 by odd numbers (such as 1 larger number, 3 smaller numbers, 5 smaller numbers and the like). The first main shaft 7 and the second main shaft 9 have the same rotating speed and opposite rotating directions, wherein the first main shaft is driven by the first cylindrical gear 51 and the left cylindrical gear set 6, and the second main shaft is driven by the second cylindrical gear 52 and the right cylindrical gear set 8. The second bevel gear 4 is respectively meshed with the first cylindrical gear 51 and the second cylindrical gear 52, the first cylindrical gear 51 is meshed with the left cylindrical gear set 6, the left cylindrical gear set 6 drives the first spindle (namely, the last gear of the left cylindrical gear set 6 is in key connection with the first spindle), the second cylindrical gear 52 is meshed with the right cylindrical gear set 8, and the right cylindrical gear set 8 drives the second spindle 9 (namely, the last gear of the right cylindrical gear set 6 is in key connection with the second spindle). A plurality of gears respectively forming a cylindrical gear set (a left cylindrical gear set 6 and a right cylindrical gear set 8), and adjacent cylindrical gears are meshed in sequence. The first bevel gear 3, the first cylindrical gear 51, the second cylindrical gear 52, the second bevel gear 4, the left side gear set 6, the right side gear set 8, the first main shaft 7 and the second main shaft 9 are all positioned in the box body 1.
The transmission ratio between the first cylindrical gear 51 and the left cylindrical gear set 6 is equal to the transmission ratio between the second cylindrical gear 52 and the right cylindrical gear set 8, the transmission ratio is accurate, the structure is compact, the transmission efficiency is high, and the noise is low. The first spindle 7 and the second spindle 9 rotate at the same speed. The rotating speeds of the two main shafts are synchronous, the transmission ratio is accurate, and the damage of the mixer caused by interference due to the change of the speed ratio of the main shafts is avoided.
On the basis of the improved double-shaft mixer, the mutual positions of all the parts in the speed reducer can be further improved. The first bevel gear is respectively vertical to the first cylindrical gear, the second bevel gear, the left side gear set, the right side gear set, the first main shaft and the second main shaft, and the first cylindrical gear, the second bevel gear, the left side gear set, the right side gear set, the first main shaft and the second main shaft are parallel to each other. The speed reducer is compact in arrangement structure, large in transmission ratio and stable and reliable in transmission.
On the basis of the improved double-shaft mixer, the main shaft of the speed reducer can be further improved. Self-aligning roller bearings 10 are arranged at two ends of the first main shaft 7 and the second main shaft 9, and two bearings are omitted at the motor end (namely the reducer end) of the mixer, so that the whole mixer is more compact in arrangement and more convenient to maintain.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a double-shaft mixer, includes the casing, its characterized in that, casing one side is supported fixedly by the speed reducer, and the casing opposite side is supported fixedly by the bearing, the rotor run through the casing and install in the speed reducer with the bearing on, be equipped with the axle head between casing and the rotor and seal, the casing lower part is equipped with the discharge door, casing upper portion is equipped with the feeding upper cover.
2. The double-shaft mixer of claim 1, wherein the reducer comprises a housing, a motor mounted on the housing, a first bevel gear connected to an output shaft of the motor, a second bevel gear meshed with the first bevel gear, a first cylindrical gear and a second cylindrical gear coaxially fixedly connected with the second bevel gear, a left gear set meshed with the first cylindrical gear, a first main shaft connected with the left gear set, a right gear set meshed with the second cylindrical gear, and a second main shaft connected with the right gear set, the first main shaft is driven by the first cylindrical gear and the left gear set, the second main shaft is driven by the second cylindrical gear and the right gear set, the first main shaft and the second main shaft rotate at the same speed and rotate in opposite directions.
3. The double-shaft mixer according to claim 2, wherein the first main shaft and the second main shaft are provided at both ends thereof with self-aligning roller bearings for supporting the rotor.
4. The twin shaft mixer of claim 1, wherein the mixer is flanked by return ducts.
5. The twin shaft mixer of claim 1, wherein said housing has a cleaning door.
6. The twin shaft mixer of claim 2, wherein the gear ratio between the first cylindrical gear and the left hand gear set is equal to the gear ratio between the second cylindrical gear and the right hand gear set.
7. The twin-shaft mixer according to claim 2 wherein the number of gears in the left and right gear sets differs by an odd number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921292431.4U CN210786950U (en) | 2019-08-09 | 2019-08-09 | Double-shaft mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921292431.4U CN210786950U (en) | 2019-08-09 | 2019-08-09 | Double-shaft mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210786950U true CN210786950U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921292431.4U Active CN210786950U (en) | 2019-08-09 | 2019-08-09 | Double-shaft mixer |
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| CN (1) | CN210786950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975987A (en) * | 2021-10-11 | 2022-01-28 | 安徽皖雪食品股份有限公司 | Mixing equipment for wheat flour production and working method thereof |
-
2019
- 2019-08-09 CN CN201921292431.4U patent/CN210786950U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975987A (en) * | 2021-10-11 | 2022-01-28 | 安徽皖雪食品股份有限公司 | Mixing equipment for wheat flour production and working method thereof |
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