Stirring rotor assembly and stirring device

Abstract

The invention belongs to the technical field of stirrers. The stirring rotor mechanism is characterized in that the stirring rotor mechanism comprises a rotor assembly which comprises a rotor drum, and an auger flange is arranged in the rotor drum; the rotor core column assembly is arranged in the rotor sleeve, and the rotor core column assembly comprises a core column rotating cylinder; the first flange is arranged at one end of the core column rotary drum, and the first flange is connected with the auger flange, so that the connection between the core column rotary drum and the rotor rotary drum is realized, and the first flange is used for transmitting torque; and the second flange is arranged at the other end of the core column rotary drum and is used for connecting the rotor core column assembly and a transmission mechanism. The invention is used for solving the technical problems of bending deformation caused by too long transmission shaft for transmitting torque, inconvenience in installation between a rotor and the transmission shaft, complex structure and high later maintenance cost of the existing full-ration stirrer. The stirring device comprises the stirring rotor mechanism.

Description

Technical Field

[0001] The present invention belongs to the technical field of mixers, and in particular relates to a mixing rotor mechanism and a mixing device comprising the mixing rotor mechanism. Background Art

[0002] Total daily ration (TMR) is a feeding technology that mixes roughage, concentrate feed, vitamins, minerals and other additives in a certain formula ratio to provide a nutritionally balanced complete feed to meet the needs of dairy cows. The use of total daily ration feeding technology can save a lot of manpower and material resources and reduce the cost of raising dairy cows.

[0003] The total ration mixer is known as the "chef" of dairy cows. The level of the "chef" is directly related to the quality of the dairy cow's ration. The total ration mixer is a feed processing equipment that prepares the total ration by cutting, kneading, stirring and mixing materials. The total ration feeding technology with excellent processing equipment and related supporting technologies can ensure that every bite of ration consumed by dairy cows is a total ration with uniform nutrient concentration and a consistent ratio of coarse and fine feeds. The most core component of the total ration mixer is the auger.

[0004] According to the arrangement of the auger of the total ration mixer and the shape of the mixer, the total ration mixer can be divided into a vertical total ration mixer and a horizontal total ration mixer. The overall height of the material box of the horizontal total ration mixer is relatively low, so it is suitable for some cowsheds with height restrictions. Therefore, the horizontal total ration mixer has fewer restrictions on the size of the cowshed and is particularly selective, which is more suitable for the production of small batches of diets. For large-scale ranches, the advantages of vertical total ration mixers are very obvious. With the continuous expansion of the popularization of total ration feeding technology in ranches, the gradual development of large-scale, intensive and standardized feeding, and the increasing labor and management costs of feeding, people in the dairy farming industry are increasingly pursuing the realization of the mechanization, intelligence and informationization of total ration technology. This is also the inevitable development trend of the application model of total ration mixers in the future.

[0005] The vertical total-ration mixer is mainly composed of a bin, a bottom plate, and an auger. The auger is composed of a spiral sleeve, a conical spiral blade, and a cutter. The spiral sleeve is equipped with a transmission shaft to transmit the torque input from the planetary gear reducer to drive the auger to rotate. Usually, the transmission shaft is in the form of a square rod, and there is a square rod groove in the auger sleeve. By inserting the square rod groove into the square rod, power transmission can be achieved.

[0006] The method of using square bars as transmission shafts has obvious shortcomings. Considering that the matching tolerance of the square bar groove cannot be too large and the rotor is heavy, it is difficult to find the square bar groove and square bar in the spiral sleeve accurately, whether it is rotor installation or future maintenance and disassembly of the rotor, which brings great challenges to the rotor installation and wastes time.

[0007] In addition to the square rod as the transmission shaft, there is also a support tower. The support tower is a transmission shaft that is connected to the planetary gear reducer at one end and bolted to the top of the rotor spiral sleeve at the other end. This will result in a very long transmission shaft. In order to ensure the rigidity and verticality of the transmission shaft, the top of the spiral sleeve needs to be positioned with the help of a thrust bearing, resulting in a complex structure and cumbersome later maintenance. Both the manufacturing cost and the maintenance cost are very high.

[0008] Therefore, how to provide a transmission shaft for transmitting torque on a total diet mixer, which can not only overcome the bending deformation caused by the too long transmission shaft and ensure the smooth operation of the rotor, but also ensure the convenient installation between the rotor and the transmission shaft, while the structure should not be too complicated and the subsequent maintenance cost should be low, is a problem that technical personnel in this field have to face and solve. Summary of the invention

[0009] The first object of the present invention is to provide a mixing rotor mechanism to solve the technical problems of bending deformation caused by the excessive length of the transmission shaft for transmitting torque on the existing total diet mixer, inconvenient installation between the rotor and the transmission shaft, complex structure and high subsequent maintenance cost.

[0010] In order to solve the above technical problems, the present invention adopts the following technical solution, the stirring rotor mechanism comprises: The rotor assembly comprises a rotor drum, wherein an auger flange is arranged in the rotor drum; A rotor core column assembly is arranged in the rotor sleeve, and the rotor core column assembly includes: Core column drum; A first flange is arranged at one end of the core column drum, the first flange is connected to the auger flange, and realizes the connection between the core column drum and the rotor drum for transmitting torque; The second flange is arranged at the other end of the core column drum and is used to connect the rotor core column assembly with the power mechanism.

[0011] The stirring rotor mechanism of the present invention is used on a total diet mixer to transmit torque, which can not only overcome the bending deformation caused by the too long transmission shaft to ensure the stable operation of the rotor, but also ensure the convenient installation between the rotor and the transmission shaft, while the structure should not be too complicated, and the subsequent maintenance cost is low.

[0012] In order to solve the technical problem of how to position the rotor assembly and the rotor core column assembly, the present invention adopts the following technical solution: a stirring mandrel is provided on the first flange; a center hole is provided on the auger flange; and the stirring mandrel is provided in the center hole of the auger flange. The present invention uses the stirring mandrel for positioning to ensure installation accuracy.

[0013] In order to solve the technical problem of inconvenient installation of the rotor assembly, the present invention adopts the following technical solution: a screw mandrel installation hole is provided at the center of the first flange; The first flange is evenly distributed with first connecting holes in the circumferential direction, and the auger flange is evenly distributed with second connecting holes in the circumferential direction. Connectors are arranged in the first connecting holes and the second connecting holes that match each other to realize the connection between the first flange and the auger flange. An auxiliary mandrel is detachably arranged in the first connecting hole, and the auxiliary mandrel is located on both sides of the auger mandrel; the auxiliary mandrel passes through the corresponding second connecting hole on the auger flange.

[0014] In the middle of the first flange of the present invention, an auger core shaft is installed. In addition to the auger core shaft in the middle of the upper flange, two (not too many, two are enough) auxiliary core shafts are installed in the threaded hole of the upper flange as needed. The tops of the auger core shaft and the auxiliary core shaft are both conical, which facilitates the automatic buckling of the rotor assembly. After the rotor assembly is buckled, the two auxiliary core shafts need to be removed, and then bolts are installed to fix the rotor and the rotor core column.

[0015] In order to solve the technical problem of difficulty in locating, the present invention adopts the following technical solution: the head of the auger core shaft is conical; the center hole on the auger flange is a conical countersunk hole; The head of the auxiliary mandrel is conical; the second connecting hole on the auger flange is a conical countersunk hole; The auxiliary core shaft is provided with a shaft square, which is used for removing the auxiliary core shaft after the rotor assembly slides into the auger core shaft and the auxiliary core shaft.

[0016] The conical head design of the auger core shaft and the auxiliary core shaft at the top of the rotor core column assembly of the present invention, in conjunction with the conical countersunk hole of the auger flange in the rotor drum, can realize the automatic buckle of the rotor and the rotor core column, without spending extra time and effort to align the bolt holes of the auger flange and the bolt holes of the flange on the core column, thus saving labor costs and time costs.

[0017] In order to solve the technical problems that the existing transmission shaft support tower is too long and has insufficient rigidity and deflection, the present invention adopts the following technical solution, wherein the rotor core shaft assembly also includes a reinforcing support member for improving the strength of the rotor core column assembly; the reinforcing support member includes: An annular supporting rib plate is sleeved on the core column rotating drum; A first reinforcing rib plate, axially evenly distributed on the outer circumferential surface of the core column rotating cylinder, the first reinforcing rib plate is located between the first flange and the annular supporting rib plate; The second reinforcing ribs are evenly distributed axially on the outer circumferential surface of the core column drum, and the second reinforcing ribs are located between the annular supporting ribs and the second flange.

[0018] The rotor core column also includes a core column rotating drum, and a first flange is provided on the top of the core column rotating drum, and threaded holes are evenly distributed on the first flange. The first flange is connected to the auger flange in the rotor rotating drum by bolts to transmit torque. The diameter of the first flange is smaller than the diameter of the second flange. There is an annular support rib plate between the first flange and the second flange, and the diameter of the annular support rib plate is basically the same as the diameter of the second flange.

[0019] There is a trapezoidal first reinforcing rib plate between the first flange and the annular support rib plate, so that a cone angle can be formed between the first flange and the annular support rib plate. The existence of this cone angle can facilitate the rotor to be easily inserted into the core column without being very precise. Rectangular reinforcing rib plates are distributed at a certain angle between the annular support rib plate and the second flange to ensure the strength of the rotor core column.

[0020] The structures of the annular support ribs, the first reinforcing ribs and the second reinforcing ribs of the rotor core column assembly of the present invention ensure the structural strength of the rotor core column assembly and overcome the problems of insufficient rigidity and deflection due to the too long length of the support tower.

[0021] In order to solve the technical problem of difficulty in installing the rotor, the present invention adopts the following technical solution: the diameter of the first flange is smaller than the diameter of the second flange, the diameter of the annular support rib is equal to the diameter of the second flange, and the first reinforcing rib is a right-angled trapezoid, so that a cone angle structure is formed between the first flange and the annular support rib for guiding the installation of the rotor assembly; The second reinforcing rib plate is rectangular.

[0022] The taper design of the top of the rotor core column assembly of the present invention can effectively solve the problem of difficulty in installing the rotor due to too small matching tolerance between the square rod and the square rod groove.

[0023] In order to solve the technical problem of inconvenient maintenance, the present invention adopts the following technical solution: the stirring rotor mechanism also includes an auger top cover assembly, including a conical cover, a lifting ring is provided at one end of the conical cover, and a top cover flange is provided at the other end of the conical cover for connecting the rotor drum of the rotor assembly. When repairing and disassembling the rotor assembly, the auger top cover assembly must be removed first, and then the fastening bolts between the auger flange and the first flange are removed, and finally the auger top cover assembly is installed. At this time, the rotor assembly can be lifted by the lifting ring on the auger top cover assembly to complete the maintenance and disassembly of the rotor assembly.

[0024] In order to solve the technical problem of how to realize the rotor assembly, the present invention adopts the following technical solution: spiral blades are arranged on the rotor drum, and cutters are arranged on the spiral blades.

[0025] In order to solve the technical problem of sealing the stirring rotor mechanism, the present invention adopts the following technical solution: a first sealing member is arranged between the second flange and the inner wall of the rotor drum to prevent water vapor or liquid in the bin from entering the rotor core column assembly; The top of the rotor drum is flange-connected to the top cover flange, and a second seal is arranged between the top of the rotor drum and the top cover flange to prevent the injected liquid or dust from entering the interior of the rotor assembly.

[0026] The bolt holes on the second flange are connected to the output shaft of the planetary gear reducer. A sealing groove is opened on the circumference of the second flange to install a sealing ring to prevent water vapor or other liquids in the warehouse from penetrating.

[0027] The second object of the present invention is to provide a stirring device comprising the stirring rotor mechanism described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the stirring device of the present invention; Figure 2 is a perspective view of a rotor core assembly of the present invention; Figure 3 is a stereoscopic diagram of the stirring rotor mechanism of the present invention; Figure 4 yes Figure 3 A magnified view of middle; Figure 5 is a top view of the auger flange of the present invention; Figure 6 is a cross-sectional view of the auger flange of the present invention; In the figure: 10 stirring device; 100 auger top cover assembly; 101 top cover flange; 102 cone cover; 103 lifting ring; 200 rotor core column assembly; 201 core column drum; 202 second flange; 2021 third connection hole; 2022 sealing groove; 203 second reinforcing rib plate; 204 annular support rib plate; 205 first reinforcing rib plate; 206 first flange; 2061 first connection hole; 207 auger core shaft; 208 auxiliary core shaft; 300 rotor assembly; 301 auger flange; 3011 center hole; 3012 second connecting hole; 302 rotor drum; 303 spiral blade; 304 cutter; 305 top plate; 400: warehouse bottom plate; 500: coupling; 600: planetary gear reducer; 700: second seal. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Example 1 See also Figure 1 , Figure 3 , a stirring rotor mechanism includes a rotor assembly 300 and a rotor core column assembly 200.

[0031] The rotor assembly 300 includes a rotor drum 302. A spiral blade 303 is installed on the rotor drum 302, and a cutter 304 is installed at intervals on the outer edge of the spiral blade 303. An auger flange 301 is installed in the rotor drum 302. A center hole 3011 is set on the auger flange 301. The center hole 3011 is preferably a conical countersunk hole. Second connecting holes 3012 are evenly distributed circumferentially on the auger flange 301. The second connecting holes 3012 are preferably conical countersunk holes.

[0032] The rotor core assembly 200 is arranged in the rotor sleeve 302. The rotor core assembly 200 comprises a core rotating drum 201, a first flange 206, and a second flange 202.

[0033] The first flange 206 is disposed at one end of the core column drum 201 , and the first flange 206 is connected to the auger flange 301 , thereby realizing the connection between the core column drum 201 and the rotor drum 302 for transmitting torque.

[0034] In one embodiment, a stirring mandrel 207 is provided on the first flange 206; the stirring mandrel 207 is provided in the center hole 3011 of the auger flange 301. Preferably, the head of the auger mandrel 207 is conical. Specifically, an auger mandrel mounting hole, preferably a threaded hole, is provided in the center of the first flange 206. First connecting holes 2061, preferably threaded holes, are evenly distributed circumferentially on the first flange 206. Connectors are provided in the matching first connecting holes and second connecting holes 3012 to achieve the connection between the first flange 206 and the auger flange 301. Specifically, there is a threaded hole for mounting the auger mandrel 207 at the center position of the first flange 206, and threaded holes are evenly distributed on the first flange 206. The threaded holes here are used to connect with the auger flange 301 of the rotor assembly 300.

[0035] In one embodiment, the auxiliary mandrel 208 is detachably disposed in the first connection hole, and the auxiliary mandrel 208 is located on both sides of the auger mandrel 207; the auxiliary mandrel passes through the corresponding second connection hole 3012 on the auger flange 301. Preferably, the head of the auxiliary mandrel 208 is conical.

[0036] Specifically, Figure 5 , Figure 6 As shown, the tops of the auger core shaft 207 and the auxiliary core shaft 208 are both conical, which has good guiding properties. This can ensure that the conical countersunk hole of the auger flange 301 of the rotor assembly 300 automatically slides into the auger core shaft 207 and the auxiliary core shaft 208 without the need for alignment, thereby realizing the automatic buckle function of the installation of the rotor assembly 3.

[0037] In one embodiment, Figure 1 As shown, the auxiliary mandrel 208 is provided with a shaft square for removing the auxiliary mandrel after the rotor assembly slides into the auger mandrel and the auxiliary mandrel. After the rotor assembly 300 slides into the auger mandrel 207 and the auxiliary mandrel 208, the auxiliary mandrel 208 is removed with a wrench through the shaft square at the top of the auxiliary mandrel 208, and then the rotor assembly 300 is connected to the rotor core column assembly 200 with bolts.

[0038] The second flange 202 is welded to the other end of the core column drum 201, and is used to connect the rotor core column assembly 200 and the planetary gear reducer 600. The second flange 202 has third connection holes 2021 evenly distributed circumferentially, and is used to connect the planetary gear reducer 600.

[0039] In one embodiment, the rotor core shaft assembly 200 further includes a reinforcing support member for improving the strength of the rotor core column assembly; the reinforcing support member includes an annular support rib plate 203 , a first reinforcing rib plate 205 , and a second reinforcing rib plate 204 .

[0040] The annular supporting rib plate 204 is sleeved and fixed on the core column rotating cylinder 201 .

[0041] The shape of the first reinforcing rib plate 205 is preferably a right-angled trapezoid. The first reinforcing rib plate 205 is evenly distributed axially on the outer circumference of the core column drum 201, and the first reinforcing rib plate 205 is located between the first flange 206 and the annular support rib plate 204. The first reinforcing rib plate 205 can not only strengthen the strength of the rotor core column assembly 200, but also have a guiding function.

[0042] The second reinforcing ribs 203 are preferably rectangular and are evenly distributed axially on the outer circumference of the core column drum 201 , and are located between the annular support ribs 204 and the second flange 202 .

[0043] like Figure 2 As shown, the core column drum 201, the second flange 202, the annular support rib plate 204, the first flange 206, the first reinforcing rib plate 205 and the rectangular reinforcing rib plate 203 are welded to form the rotor core column assembly 200.

[0044] In one embodiment, the diameter of the first flange 206 is smaller than the diameter of the second flange 202, and the diameter of the annular support rib 204 is equal to the diameter of the second flange 202, so that a cone angle structure is formed between the first flange and the annular support rib, which is used for guiding when installing the rotor assembly. The diameter of the first flange 206 is smaller than the diameter of the second flange 202, so that a cone angle can be formed between the first flange 206 and the annular support rib 204, which has a guiding effect when installing the rotor assembly 300, and can ensure that when installing the rotor assembly 300, the rotor assembly 300 can be easily inserted into the rotor core column assembly 200 without too high installation accuracy.

[0045] In one embodiment, a first seal is disposed between the second flange 202 and the inner wall of the rotor drum 302 to prevent water vapor or liquid in the bin from entering the rotor core column assembly. Figure 1 As shown, the second flange 202 is connected to the top flange of the planetary gear reducer 600, and a sealing groove 2022 is provided on the circumference of the side of the second flange 202. Before installing the rotor assembly 300, a first sealing member is installed in the sealing groove to prevent water vapor or other liquids in the bin from entering the rotor core column assembly 200. The first sealing member is preferably a sealing ring. In one embodiment, the stirring rotor mechanism further includes an augers top cover assembly 100, including a conical cover 102, a hanging ring 103 is provided at one end of the conical cover, and a top cover flange 101 is provided at the other end of the conical cover 102 for connecting the rotor drum of the rotor assembly. Figure 1 As shown, the auger cover assembly 100 comprises a top lifting ring 103, a conical cover 102 and a cover flange 101, and the cover flange 101 is connected to the top flange of the rotor 2. The auger cover assembly 100 is installed in the last step after the rotor assembly 300 and the rotor core column assembly 200 are fastened.

[0046] In one embodiment, the top plate of the rotor drum is flange-connected to the top cover flange 101, and a second seal 700 is disposed between the top of the rotor drum and the top cover flange to prevent the injected liquid or dust from entering the interior of the rotor assembly. Figure 3 , Figure 4 As shown, in order to prevent the added liquid or dust from entering the interior of the rotor, a second seal 700 is installed between the auger top cover assembly 100 and the top flange of the rotor 3. The second seal 700 is preferably a sealing gasket.

[0047] After the fastening bolts between the rotor assembly 300 and the rotor core column assembly 200 are tightened, the auger cover assembly 100 is installed. When repairing and disassembling the rotor assembly 300, the auger cover assembly 100 needs to be removed first, and then the fastening bolts between the auger flange 301 and the first flange 206 are removed, and finally the auger cover assembly 100 is installed. At this time, the rotor assembly 300 can be lifted by the lifting ring on the auger cover assembly 100 to complete the maintenance and disassembly of the rotor assembly 300.

[0048] The stirring rotor mechanism of the present invention is used on a total diet mixer to transmit torque, which can not only overcome the bending deformation caused by the too long transmission shaft to ensure the stable operation of the rotor, but also ensure the convenient installation between the rotor and the transmission shaft, while the structure should not be too complicated, and the subsequent maintenance cost is low.

[0049] Example 2 like Figure 1 As shown, the stirring device 10 includes a bin bottom plate 400, a coupling 500, a planetary gear reducer 600, and a stirring rotor mechanism of any one of Embodiment 1.

[0050] The above-mentioned implementation modes are only for illustrating the technical features and concepts of the present invention, and their purpose is to enable technicians familiar with this technology in the field to understand the contents of the present invention and implement them. They cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit and implementation modes of the present invention should be included in the protection scope of the present invention.

Claims

1. A stirring rotor mechanism, characterized in that: include: The rotor assembly comprises a rotor drum, wherein an auger flange is arranged in the rotor drum; A rotor core column assembly is arranged in the rotor sleeve, and the rotor core column assembly includes: Core column drum; A first flange is arranged at one end of the core column drum, the first flange is connected to the auger flange, and realizes the connection between the core column drum and the rotor drum for transmitting torque; The second flange is arranged at the other end of the core column drum and is used to connect the rotor core column assembly with the power mechanism.

2. The stirring rotor mechanism according to claim 1, characterized in that: A stirring core shaft is arranged on the first flange; a center hole is arranged on the auger flange; and the stirring core shaft is arranged in the center hole of the auger flange.

3. The stirring rotor mechanism according to claim 2, characterized in that: The center of the first flange is provided with an auger core shaft mounting hole; The first flange is evenly distributed with first connecting holes in the circumferential direction, and the auger flange is evenly distributed with second connecting holes in the circumferential direction. Connectors are arranged in the first connecting holes and the second connecting holes that match each other to realize the connection between the first flange and the auger flange. An auxiliary mandrel is detachably arranged in the first connecting hole, and the auxiliary mandrel is located on both sides of the auger mandrel; the auxiliary mandrel passes through the corresponding second connecting hole on the auger flange.

4. The stirring rotor mechanism according to claim 3, characterized in that: The head of the auger core shaft is conical; the center hole on the auger flange is a conical countersunk hole; The head of the auxiliary mandrel is conical; the second connecting hole on the auger flange is a conical countersunk hole; The auxiliary core shaft is provided with a shaft square, which is used for removing the auxiliary core shaft after the rotor assembly slides into the auger core shaft and the auxiliary core shaft.

5. The stirring rotor mechanism according to claim 2 or 3, characterized in that: The rotor core shaft assembly also includes a reinforcing support member for improving the strength of the rotor core column assembly; the reinforcing support member includes: An annular supporting rib plate is sleeved on the core column rotating drum; A first reinforcing rib plate, axially evenly distributed on the outer circumferential surface of the core column rotating cylinder, the first reinforcing rib plate is located between the first flange and the annular supporting rib plate; The second reinforcing ribs are evenly distributed axially on the outer circumferential surface of the core column drum, and the second reinforcing ribs are located between the annular supporting ribs and the second flange.

6. The stirring rotor mechanism according to claim 5, characterized in that: The diameter of the first flange is smaller than the diameter of the second flange, the diameter of the annular support rib is equal to the diameter of the second flange, and the first reinforcing rib is a right-angled trapezoid, so that a cone structure is formed between the first flange and the annular support rib for guiding the rotor assembly during installation; The second reinforcing rib plate is rectangular.

7. The stirring rotor mechanism according to claim 1, characterized in that: The stirring rotor mechanism also includes an augers top cover assembly, including a conical cover, a hanging ring is arranged at one end of the conical cover, and a top cover flange is arranged at the other end of the conical cover for connecting the rotor drum of the rotor assembly.

8. The stirring rotor mechanism according to claim 1, characterized in that: The rotor drum is provided with a spiral blade, and the spiral blade is provided with a cutter.

9. The stirring rotor mechanism according to claim 7, characterized in that: A first sealing member is provided between the second flange and the inner wall of the rotor drum to prevent water vapor or liquid in the bin from entering the rotor core column assembly; The top of the rotor drum is flange-connected to the top cover flange, and a second seal is arranged between the top of the rotor drum and the top cover flange to prevent the injected liquid or dust from entering the interior of the rotor assembly.

10. A stirring device, characterized in that: The stirring rotor mechanism comprises the stirring rotor mechanism described in any one of claims 1 to 9.

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