Novel vertical spiral feeding and stirring mechanism

Abstract

The utility model discloses a novel vertical spiral feeding and stirring mechanism, which belongs to the technical field of feeding and stirring mechanisms, and comprises a box shell, a stirring shaft, a feeding screw rod and a stirring shaft, the box shell is internally provided with an input shaft, a lower transmission part and an upper transmission part, the upper transmission part and the lower transmission part are both in transmission connection with the input shaft, and the stirring shaft is arranged in the box shell and is rotatably provided with the feeding screw rod. The driving mechanism is installed on the box shell and used for driving the input shaft, the lower transmission part is in transmission connection with the stirring shaft through a transmission gear set, and the upper transmission part is in transmission connection with the feeding screw through a transmission gear set. The technical key points are as follows: the driving mechanism works to drive the input shaft to rotate so as to drive the lower transmission part and the upper transmission part to rotate, so that the stirring shaft and the feeding screw which are in transmission connection are respectively driven to synchronously and reversely rotate, and feeding and stirring work is simultaneously carried out, namely, a single motor synchronously drives the feeding mechanism and the stirring mechanism to work; operation during installation and maintenance can be simplified, and meanwhile cost is remarkably reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a feed stirring mechanism technical field, concretely is a novel vertical spiral feed and stirring mechanism. BACKGROUND

[0002] The vertical spiral feed and stirring mechanism is a kind of equipment commonly used in material conveying and stirring, and is particularly suitable for dry materials with light bulk density, such as grain, oil bran, feed, chemical raw materials, cement, etc.The working principle of the mechanism is to rotate the spiral shaft by motor through speed reducer, and the blade on the spiral shaft rotates, which rolls the material into the feeding port and conveys it upward under the pushing of the spiral shaft.During the conveying process, the rotation of the blade also plays a stirring role, making the material more uniform.When the material reaches the discharge port, the material is pushed out and the conveying process is completed due to the pushing force of the spiral shaft.

[0003] The traditional powder vertical spiral packaging machine often uses a speed reducer motor (5.5 kW R79 machine base number) to drive the feeding screw, and another motor (1.5 kW R49 machine base number) is equipped to drive the stirring shaft to stir and break the arch, and the two work together to realize efficient feeding and stirring.Due to the existence of two motors, two sets of transmission systems are equipped, so the operation is more troublesome during installation and maintenance, and the double motor setting also significantly increases the cost, therefore, a new type of vertical spiral feeding and stirring mechanism is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a new type of vertical spiral feed and stirring mechanism, which realizes the purpose of completing feeding and stirring functions at the same time by relying on only one speed reducer motor through a set of gear transmission system, i.e.single motor synchronous driving feeding mechanism and stirring mechanism work, which can simplify the operation during installation and maintenance, and significantly reduce the cost.The driving principle is that the driving mechanism works to drive the input shaft to rotate, to drive the lower transmission member and the upper transmission member to rotate, and then to drive the transmission-connected stirring shaft and feeding screw to rotate in opposite directions synchronously, so that feeding and stirring work are carried out at the same time, solving the technical problem that the existing vertical spiral packaging machine often uses double motors to drive to realize the functions of feeding and stirring, which is more troublesome during installation and maintenance, and significantly increases the cost.

[0005] The technical solution adopted by the embodiment of the present application to solve its technical problem is:

[0006] A novel vertical spiral feeding and stirring mechanism, comprising a box shell, an input shaft, a lower transmission member and an upper transmission member rotatably installed inside the box shell, wherein the upper transmission member and the lower transmission member are in transmission connection with the input shaft, a stirring shaft rotatably installed inside the box shell and coaxially arranged with a feeding screw rod, a driving mechanism installed on the box shell to drive the input shaft, wherein the lower transmission member and the stirring shaft are in transmission connection through a transmission gear set, and the upper transmission member and the feeding screw rod are in transmission connection through a transmission gear set, the driving mechanism drives the input shaft to rotate to drive the lower transmission member and the upper transmission member to rotate, and then drives the transmission-connected stirring shaft and feeding screw rod to synchronously rotate in opposite directions to simultaneously perform feeding and stirring, that is, a single motor synchronously drives the feeding mechanism and the stirring mechanism to work, which can simplify the operation during installation and maintenance and significantly reduce the cost.

[0007] In a possible implementation, the stirring shaft is a hollow shaft, outer walls of which are sleeved with outer mounting bearings at upper and lower ends, outer rings of the outer mounting bearings are fixedly connected with the box shell, this structure can fix the stirring shaft at a specified position inside the box shell without hindering the free rotation of the stirring shaft, and the feeding screw rod is sleeved with inner mounting bearings at upper and lower ends, outer rings of the inner mounting bearings are fixedly connected with inner walls of the stirring shaft, this structure can fix the feeding screw rod at a specified position inside the stirring shaft without hindering the free rotation of the feeding screw rod.

[0008] In a possible implementation, the transmission gear set comprises a large transmission gear and a matched small transmission gear, and the two are in meshing transmission connection, based on the above structure, the meshing between the large transmission gear and the small transmission gear can play a transmission role, and because the number of teeth is different, the transmission gear set can adjust the rotating speeds of the feeding screw rod and the stirring shaft.

[0009] In a possible implementation, the bottom end of the lower transmission member is fixedly sleeved with a small transmission gear, and the bottom end of the stirring shaft is fixedly sleeved with a large transmission gear, for the lower transmission member, the small transmission gear drives the large transmission gear to transmit, thus the rotating speed of the stirring shaft is slow, which is consistent with the working characteristics of the stirring and arch breaking, in addition, the top end of the upper transmission member is fixedly sleeved with a large transmission gear, and the top end of the feeding screw rod is fixedly sleeved with a small transmission gear, for the lower transmission member, the large transmission gear drives the small transmission gear to transmit, thus the rotating speed of the feeding screw rod is fast, which is consistent with the working characteristics of the rotating feeding.

[0010] In a possible implementation, the input shaft is rotatably installed on the box shell through end mounting members arranged at two ends, and input bevel gears are fixedly connected with end portions of the input shaft, the above structure provides necessary structural basis for the rotatable installation of the end mounting members and the transmission of torque.

[0011] In a possible implementation, the lower transmission member and the upper transmission member are completely identical, and each comprises a bearing cylinder, a transmission shaft is rotatably arranged in the bearing cylinder, and a transmission bevel gear fixedly connected to an end of the transmission shaft is engaged with the input bevel gear.

[0012] In a possible implementation, the driving mechanism comprises a motor mounting seat fixedly mounted on the box shell, a driving motor equipped with a speed reducer is mounted on the motor mounting seat, the output shaft of the speed reducer is in transmission connection with the input shaft through an elastic coupling, and when the driving motor works, the driving motor can output larger driving torque through the speed reducer and drive the input shaft to rotate through the elastic coupling, so that the driving force is input.

[0013] In a possible implementation, the box shell comprises a frame, a plurality of baffles are bolted to the frame, the baffles can be conveniently disassembled, and the user can conveniently check and maintain the inside, and in addition, a cover is arranged on the top of the frame, and the cover can shield and protect part of the transmission structure.

[0014] In summary, the utility model has the following beneficial technical effects:

[0015] The feeding and stirring mechanism realizes the purpose that feeding and stirring functions are simultaneously completed by only one speed reducer through a gear transmission system, that is, a single motor synchronously drives the feeding mechanism and the stirring mechanism to work, so that the operation during installation and maintenance is simplified, and the cost is significantly reduced, and the driving principle is specifically as follows: the driving mechanism drives the input shaft to rotate, so as to drive the lower transmission member and the upper transmission member to rotate, and then synchronously and reversely drive the stirring shaft and the feeding screw connected in transmission to rotate, so that feeding and stirring work are simultaneously performed. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is an internal transmission structure schematic view of the utility model;

[0019] Figure 3 It is a structure sectional view of the utility model;

[0020] Figure 4 It is a local structure sectional view of the utility model;

[0021] Figure 5 It is the local transmission structure schematic view of the utility model;

[0022] Figure 6 It is the drive mechanism structure schematic view of the utility model.

[0023] In the figure: 1, box shell;11, frame;12, baffle;13, cover;2, input shaft;21, end mounting;22, input bevel gear;31, lower transmission;32, upper transmission;301, bearing cylinder;302, transmission shaft;303, transmission bevel gear;4, stirring shaft;41, outer mounting bearing;5, feeding screw;51, inner mounting bearing;6, transmission gear set;61, large transmission gear;62, small transmission gear;7, drive mechanism;71, motor mounting seat;72, speed reducer;73, drive motor;74, elastic coupling. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiment of the application is to solve the problems in the background art, and the general idea is as follows:

[0025] As shown in Figure 1 - Figure 2 The novel vertical spiral feeding and stirring mechanism provided by the embodiment includes a box shell 1, an input shaft 2, a lower transmission 31, and an upper transmission 32 are rotatably installed inside the box shell 1, wherein the upper transmission 32 and the lower transmission 31 are in transmission connection with the input shaft 2, a stirring shaft 4 is rotatably installed inside the box shell 1, and a feeding screw 5 is coaxially arranged and rotatably installed therein, and a drive mechanism 7 is installed on the box shell 1 and used to drive the input shaft 2, wherein the lower transmission 31 and the stirring shaft 4 are in transmission connection through a transmission gear set 6, the upper transmission 32 and the feeding screw 5 are in transmission connection through the transmission gear set 6, the drive mechanism 7 drives the input shaft 2 to rotate, thereby driving the lower transmission 31 and the upper transmission 32 to rotate, and further driving the transmission-connected stirring shaft 4 and feeding screw 5 to synchronously and reversely rotate, so that the feeding and stirring work are simultaneously performed, that is, a single motor synchronously drives the feeding mechanism and the stirring mechanism to work, which can simplify the operation during installation and maintenance and significantly reduce the cost.

[0026] As shown in Figure 4 The stirring shaft 4 is a hollow shaft, outer mounting bearings 41 are arranged on the upper and lower ends of the outer wall of the stirring shaft 4, the outer rings of the outer mounting bearings 41 are fixedly connected with the box shell 1, this kind of structure can fix the stirring shaft 4 at a specified position in the box shell 1, but does not hinder the free rotation of the stirring shaft 4, the feeding screw 5 is arranged with inner mounting bearings 51 on the upper and lower ends, the outer rings of the inner mounting bearings 51 are fixedly connected with the inner wall of the stirring shaft 4, this kind of structure can fix the feeding screw 5 at a specified position in the stirring shaft 4, but does not hinder the free rotation of the feeding screw 5.

[0027] As Figure 2 As Figure 4 shown, the transmission gear set 6 includes a large transmission gear 61 and a matching small transmission gear 62, and the two are meshingly connected. Based on the above structure, the large transmission gear 61 and the small transmission gear 62 can be meshed to transmit power, and because the number of teeth is different, the rotational speed of the feeding screw 5 and the stirring shaft 4 can be adjusted. The bottom end of the lower transmission member 31 is fixedly provided with the small transmission gear 62, and the bottom end of the stirring shaft 4 is fixedly provided with the large transmission gear 61. For the lower transmission member 31, the small transmission gear 62 drives the large transmission gear 61, so the stirring shaft 4 rotates slowly, which is consistent with its working characteristics of stirring and breaking arches. In addition, the top end of the upper transmission member 32 is fixedly provided with the large transmission gear 61, and the top end of the feeding screw 5 is fixedly provided with the small transmission gear 62. For the lower transmission member 31, the large transmission gear 61 drives the small transmission gear 62, so the feeding screw 5 rotates relatively fast, which is consistent with its working characteristics of rotating and feeding.

[0028] As Figure 5 shown, the input shaft 2 is rotatably installed on the box shell 1 through the end mounting members 21 arranged at both ends, and the end portions are fixedly connected with the input bevel gears 22. The above structure provides the necessary structural basis for the rotational installation of the end mounting members 21 and the transmission of torque.

[0029] As Figure 5 shown, the lower transmission member 31 and the upper transmission member 32 are identical in structure and each include a bearing cylinder 301, which rotatably has a transmission shaft 302 arranged therein. The end portion of the transmission shaft 302 is fixedly connected with a transmission bevel gear 303 which is meshed with the input bevel gear 22. When the input bevel gear 22 inputs torque, it drives the transmission bevel gear 303 meshed therewith to rotate, and transmits the torque to the corresponding transmission gear set 6 through the transmission shaft 302, thereby driving the feeding screw 5 and the stirring shaft 4 to rotate.

[0030] As Figure 6 shown, the driving mechanism 7 includes a motor mounting seat 71 fixedly installed on the box shell 1, on which a driving motor 73 equipped with a speed reducer 72 is installed. The output shaft of the speed reducer 72 is in transmission connection with the input shaft 2 through an elastic coupling 74. When the driving motor 73 works, it can output a larger driving torque through the speed reducer 72, and drive the input shaft 2 to rotate through the elastic coupling 74, so as to realize the input of driving force.

[0031] As Figure 1 shown, the box shell 1 includes a frame 11, on which a plurality of baffles 12 are bolted. The baffles 12 can be easily disassembled, which facilitates the user to check and maintain the inside. In addition, the top of the frame 11 is covered with a cover 13, which can shield and protect part of the transmission structure.

[0032] The use principle and use process of the utility model:

[0033] The feeding and stirring mechanism realizes the purpose of simultaneously completing the feeding and stirring functions by only relying on one speed reducer motor through a gear transmission system, namely, a single motor synchronously drives the feeding mechanism and the stirring mechanism to work, can simplify the operation during installation and maintenance, and simultaneously significantly reduces the cost, and the driving principle is specifically shown as follows: the driving mechanism 7 drives the input shaft 2 to rotate, so as to drive the lower transmission part 31 and the upper transmission part 32 to rotate, and then synchronously and reversely drive the transmission-connected stirring shaft 4 and feeding screw 5 to rotate, so that the feeding and stirring work are simultaneously performed.

[0034] The lower transmission part 31 and the upper transmission part 32 are completely consistent, and both include a bearing cylinder 301, a transmission shaft 302 is rotatably arranged in the bearing cylinder 301, a transmission bevel gear 303 is fixedly connected to the end of the transmission shaft 302 and meshes with the input bevel gear 22, when the input bevel gear 22 inputs the torque, the transmission bevel gear 303 meshing with the input bevel gear 22 is driven to rotate, and the torque is transmitted to the corresponding transmission gear set 6 through the transmission shaft 302, and then the feeding screw 5 and the stirring shaft 4 are driven to rotate.

[0035] The bottom end of the lower transmission part 31 is fixedly sleeved with a small transmission gear 62, and the bottom end of the stirring shaft 4 is fixedly sleeved with a large transmission gear 61, for the lower transmission part 31, the large transmission gear 61 is driven by the small transmission gear 62, so that the stirring shaft 4 rotates at a slow speed, which is consistent with the working characteristics of the stirring and arch breaking, in addition, the top end of the upper transmission part 32 is fixedly sleeved with the large transmission gear 61, and the top end of the feeding screw 5 is fixedly sleeved with the small transmission gear 62, for the lower transmission part 31, the small transmission gear 62 is driven by the large transmission gear 61, so that the feeding screw 5 rotates at a relatively fast speed, which is consistent with the working characteristics of the rotation and feeding.

[0036] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or changes can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the implementation modes. The obvious changes or changes derived therefrom are still within the protection scope of the utility model.

Claims

1. A novel vertical helical feeding and stirring mechanism, characterized by, The utility model relates to a double-shaft mixing device for a twin-screw extruder, which comprises: a box shell (1) internally rotatably mounted with an input shaft (2), a lower transmission member (31) and an upper transmission member (32), wherein the upper transmission member (32) and the lower transmission member (31) are in transmission connection with the input shaft (2); a stirring shaft (4) rotatably mounted inside the box shell (1) and having a coaxially arranged feeding screw (5) rotatably mounted therein; a driving mechanism (7) mounted on the box shell (1) to drive the input shaft (2); wherein the lower transmission member (31) is in transmission connection with the stirring shaft (4) through a transmission gear set (6), and the upper transmission member (32) is in transmission connection with the feeding screw (5) through the transmission gear set (6).

2. A novel vertical helical feeding and stirring mechanism as claimed in claim 1, wherein: The stirring shaft (4) is a hollow shaft, the outer wall of which is sleeved with outer mounting bearings (41) at both ends, the outer rings of the outer mounting bearings (41) being fixedly connected with the box shell (1), and the feeding screw (5) is sleeved with inner mounting bearings (51) at both ends, the outer rings of the inner mounting bearings (51) being fixedly connected with the inner wall of the stirring shaft (4).

3. A novel vertical helical feeding and stirring mechanism as claimed in claim 1, wherein: The transmission gear set (6) comprises a large transmission gear (61) and a matched small transmission gear (62), and the two are in meshing transmission connection with each other.

4. A novel vertical helical feeding and stirring mechanism as claimed in claim 3, wherein: The bottom end of the lower transmission member (31) is fixedly sleeved with the small transmission gear (62), the bottom end of the stirring shaft (4) is fixedly sleeved with the large transmission gear (61), in addition, the top end of the upper transmission member (32) is fixedly sleeved with the large transmission gear (61), and the top end of the feeding screw (5) is fixedly sleeved with the small transmission gear (62).

5. A novel vertical helical feeding and stirring mechanism as claimed in claim 1, wherein: The input shaft (2) is rotatably mounted on the box shell (1) through end mounting members (21) arranged at both ends, and the end portion thereof is fixedly connected with an input bevel gear (22).

6. A novel vertical helical feeding and stirring mechanism as claimed in claim 5, wherein: The lower transmission member (31) and the upper transmission member (32) are completely identical, each comprising a bearing cylinder (301) having a transmission shaft (302) rotatably arranged therein, and the end portion of the transmission shaft (302) is fixedly connected with a transmission bevel gear (303) in meshing transmission connection with the input bevel gear (22).

7. A novel vertical helical feeding and stirring mechanism as claimed in claim 1, wherein: The driving mechanism (7) comprises a motor mounting seat (71) fixedly mounted on the box shell (1), a driving motor (73) equipped with a speed reducer (72) being mounted on the motor mounting seat (71), and the output shaft of the speed reducer (72) is in transmission connection with the input shaft (2) through an elastic coupling (74).

8. A novel vertical helical feeding and stirring mechanism as claimed in claim 1, wherein: The box shell (1) comprises a frame (11) having a plurality of baffles (12) bolted thereto, and in addition, the frame (11) is covered with a cover shell (13) at the top.

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