A double-shaft complete mixed ration mixer
By using an adapter shaft and coupling assembly in a twin-shaft total mixed ration mixer, the problem of cumbersome mixing shaft replacement in the prior art is solved, enabling rapid installation and replacement and improving operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU SONGWEI MASCH MFG CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-14
AI Technical Summary
When replacing the mixing shaft of an existing twin-shaft total mixed ration mixer with one of different sizes, the original bearings need to be disassembled and a new, compatible bearing needs to be installed, making the installation and replacement process cumbersome.
The design employs an adapter shaft and coupling assembly. By pre-installing the adapter shaft in the bearing housing and connecting it to the stirring shaft using the first coupling assembly, the stirring shaft can be quickly installed or replaced. The drive motor drives the adapter shaft to rotate the stirring shaft through the second coupling assembly.
It enables quick installation and replacement of the mixing shaft, simplifies the process of changing different types of mixing shafts in traditional mixers, reduces the tedious steps of disassembling and installing bearings, and improves operating efficiency.
Smart Images

Figure CN224485597U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feed processing technology, specifically a dual-shaft total mixing ration mixer. Background Technology
[0002] A twin-shaft total mixed ration mixer (TMR) is a device specifically designed for mixing various feed ingredients in livestock farming to ensure that livestock receive a balanced diet. This type of mixer is typically equipped with two rotating shafts in opposite directions, each with special blades or spiral belts that can effectively cut, mix, and blend various feed ingredients, including hay, silage, grains, and additives.
[0003] In the traditional installation process of a twin-shaft total mixed ration (TMR) mixer, a mixing shaft that matches the internal space of the mixer is typically used. Bearings are then installed at both ends of the mixing shaft, and the installation is completed by fitting the bearings into the bearing seats pre-installed in the mixer housing. Since the length of the mixing shaft is close to the length of the housing, the space available for operation during installation and maintenance becomes very limited, making installation difficult. Furthermore, the mixing shaft and bearings need to have a high degree of fit to achieve a precise fit. When it is necessary to replace the mixing shaft with a different size, the original bearings need to be disassembled again, and a suitable bearing needs to be reinstalled according to the specific dimensions and requirements of the new mixing shaft. The installation and replacement process is quite cumbersome and causes a lot of inconvenience to the user. Utility Model Content
[0004] The purpose of this invention is to provide a dual-shaft total mixed ration mixer, which aims to solve the problem in the prior art that when it is necessary to replace the mixing shaft of different sizes, it is necessary to disassemble the original bearing and reinstall a suitable bearing according to the specific size and requirements of the new mixing shaft, which is a cumbersome installation and replacement process.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dual-shaft total mixed ration mixer, comprising a bearing seat mounted on the outside of the machine housing via a connecting assembly, a bearing coaxially fixedly disposed within the bearing seat, a mixing shaft rotatably disposed inside the machine housing, a transfer shaft rotatably disposed within the bearing, a first coupling assembly fixedly disposed at one end of the transfer shaft extending into the machine housing, each end of the mixing shaft being connected to a corresponding transfer shaft via a first coupling assembly, and a motor for driving the rotation of the transfer shaft disposed on one side of the machine housing, the output shaft of which is connected to one end of one of the transfer shafts via a second coupling assembly.
[0006] Preferably, the first coupling assembly includes a driving end coupling that is coaxially fixed to the adapter shaft and a driven end coupling that is coaxially fixed to one end of the stirring shaft. The connection between the stirring shaft and the adapter shaft is achieved by connecting the driving end coupling and the driven end coupling.
[0007] Preferably, a brush holder is coaxially sleeved on one end of the stirring shaft near the motor, and an annular brush is fixedly mounted on the brush holder, with the bristles of the annular brush in contact with the inner wall of the housing.
[0008] Preferably, a spray water pipe is arranged around the inner wall of the housing, and multiple sets of downward-facing spray nozzles are opened on the spray water pipe along its length. The spray nozzles on the spray water pipe near the brush holder face the annular brush.
[0009] Preferably, the housing and the bearing seat have multiple sets of through holes at corresponding positions, and the connecting assembly includes bolts, with the bolt threaded onto a nut after passing through the through hole from one side of the bearing seat.
[0010] Preferably, the housing has an observation port on the side away from the motor, and a door panel is hinged to the observation port.
[0011] Preferably, the bottom of the housing has a discharge port, and the two sides of the discharge port have sliding grooves. A baffle is slidably arranged in the sliding groove, and a lifting mechanism for pulling the baffle to slide in the sliding groove is provided on one side of the housing.
[0012] Preferably, the lifting mechanism includes an electric telescopic rod hinged to one side of the housing, one end of which is hinged to one side of the baffle.
[0013] The beneficial effects of this utility model are:
[0014] 1. In use, this utility model allows for quick installation of the stirring shaft by pre-installing the adapter shaft in the bearing housing and connecting it to the stirring shaft using the first coupling assembly. This is achieved by simply connecting the driving coupling at one end of the adapter shaft to the driven coupling at one end of the stirring shaft.
[0015] 2. When using this utility model, if it is necessary to replace the stirring shaft of a different size, it is only necessary to remove the driven coupling, replace it with a driven coupling that is compatible with the new stirring shaft, and reconnect it with the driving coupling. This allows for quick connection with the adapter shaft. The drive motor then drives the adapter shaft to rotate through the second coupling assembly, thereby driving the stirring shaft to rotate. This effectively solves the problem that the process of disassembling the old bearing and replacing it with a bearing compatible with the new stirring shaft is too cumbersome when replacing different types of stirring shafts in traditional mixers. Attached Figure Description
[0016] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding portions, wherein:
[0017] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the stirring shaft in a specific embodiment of this utility model;
[0019] Figure 3 This is a specific embodiment of the present utility model. Figure 1 Enlarged structural diagram at point A;
[0020] Figure 4 This is a specific embodiment of the present utility model. Figure 2 Enlarged structural diagram at point B;
[0021] Figure 5 This is a top sectional view of a specific embodiment of the present invention.
[0022] Figure 6 This is a schematic diagram of the adapter shaft structure of a specific embodiment of this utility model.
[0023] In the diagram: 1. Casing; 2. Agitator blade; 3. Observation port; 4. Motor; 5. First coupling assembly; 6. Spray water pipe; 7. Bearing seat; 8. Bearing; 9. Bolt; 10. Brush holder; 11. Screw; 12. Nut; 13. Annular brush; 14. Agitator shaft; 15. Discharge port; 16. Baffle; 17. Electric telescopic rod; 18. Door panel; 19. Driving end coupling; 20. Driven end coupling; 21. Second coupling assembly; 22. Adapter shaft. Detailed Implementation
[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0025] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0026] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.
[0027] like Figure 1-6 As shown, a dual-shaft total mixed ration mixer includes a bearing seat 7 mounted on the outside of a housing 1 via a connecting assembly. A bearing 8 is coaxially fixed inside the bearing seat 7. A mixing shaft 14 is rotatably mounted inside the housing 1, with each end of the mixing shaft 14 extending into a corresponding bearing 8. A transition shaft 22 is rotatably mounted inside the bearing 8. One end of the transition shaft 22 extends into the housing 1 and is fixedly mounted with a first coupling assembly 5. Each end of the mixing shaft 14 is connected to the corresponding transition shaft 22 via a first coupling assembly 5. A motor 4 for driving the rotation of the transition shaft 22 is provided on one side of the housing 1, and its output shaft is connected to one end of one of the transition shafts 22 via a second coupling assembly 21.
[0028] In this embodiment, by pre-installing the adapter shaft 22 in the bearing housing 7 and connecting it to the stirring shaft 14 using the first coupling assembly 5, the stirring shaft 14 can be quickly installed simply by connecting the driving coupling at one end of the adapter shaft 22 to the driven coupling at one end of the stirring shaft 14. When it is necessary to replace the stirring shaft 14 with a different size, it is only necessary to remove the driven coupling, replace it with a driven coupling that is compatible with the new stirring shaft 14, and reconnect it to the driving coupling to quickly connect it to the adapter shaft 22. The drive motor 4 drives the adapter shaft 22 to rotate through the second coupling assembly 21, thereby driving the stirring shaft 14 to rotate. This effectively solves the problem that the traditional mixer requires disassembling the old bearing 8 and replacing it with a bearing 8 compatible with the new stirring shaft 14 when replacing different types of stirring shafts 14, which is too cumbersome.
[0029] like Figure 5 As shown, the first coupling assembly 5 includes a driving end coupling 19 coaxially fixed to the adapter shaft 22 and a driven end coupling 20 coaxially fixed to one end of the stirring shaft 14. The connection between the stirring shaft 14 and the adapter shaft 22 is achieved by connecting the driving end coupling 19 and the driven end coupling 20.
[0030] In this embodiment, by using the first coupling assembly 5, when it is necessary to replace the stirring shaft 14 of a different size, it is only necessary to remove the driven coupling, replace it with a driven coupling that is compatible with the new stirring shaft 14, and reconnect it to the driving coupling to quickly connect it to the adapter shaft 22.
[0031] like Figure 2As shown, a brush holder 10 is coaxially sleeved on one end of the stirring shaft 14 near the motor 4. An annular brush 13 is fixedly mounted on the brush holder 10, and the bristles of the annular brush 13 are in contact with the inner wall of the housing 1.
[0032] In this embodiment, by setting a brush holder 10 and having the bristles of its front end annular brush 13 contact the inner wall of the housing 1, and at the same time, the brush holder 10 rotates with the stirring shaft 14 so that the annular brush 13 continuously sweeps away the nearby debris, it can effectively prevent debris from approaching the through hole near the bearing seat 7 and avoid debris from accumulating and causing pollution.
[0033] like Figure 2 As shown, a spray water pipe 6 is arranged around the inner wall of the housing 1. Multiple sets of downward-facing spray nozzles are opened on the spray water pipe 6 along its length. The spray nozzles on the spray water pipe 6 near the brush holder 10 face the annular brush 13.
[0034] In this embodiment, the mixed feed can be replenished with water by setting up a spray pipe 6. At the same time, the spray pipe 6 near one end of the brush holder 10 continuously sprays water mist onto the annular brush 13, so that the annular brush 13 can sweep away the broken material while being rinsed, thus improving the cleaning effect.
[0035] like Figure 1 As shown, the housing 1 and the bearing seat 7 have multiple sets of through holes at corresponding positions. The connecting components include bolts 9. The bolt 9 has a nut 12 threaded onto its thread after the screw 11 passes through the through hole from one side of the bearing seat 7.
[0036] In this embodiment, the bearing seat 7 is fixed to the outside of the housing 1 by using bolts 9 to support the support rod and the stirring shaft 14, avoiding the direct use of the output bearing 8 of the drive motor 4 to bear the weight of the stirring shaft 14, thus reducing the burden on the motor 4.
[0037] like Figure 1 As shown, an observation port 3 is provided on the side of the housing 1 away from the motor 4, and a door panel 18 is hinged to the observation port 3.
[0038] In this embodiment, the stirring state of the feed can be observed by setting the observation port 3, and the door panel 18 can also be used as a feeding port to improve feeding efficiency.
[0039] like Figure 1 As shown, the bottom of the housing 1 is provided with a discharge port 15, and the two sides of the discharge port 15 are provided with sliding grooves. A baffle 16 is slidably arranged in the sliding groove. A lifting mechanism is provided on one side of the housing 1 for pulling the baffle 16 to slide in the sliding groove. The lifting mechanism includes an electric telescopic rod 17 hinged to one side of the housing 1. One end of the electric telescopic rod 17 is hinged to one side of the baffle 16.
[0040] In this embodiment, the baffle 16 blocks the discharge port 15 under the action of gravity. When it is necessary to discharge material, the discharge port 15 can be opened by activating the electric telescopic rod 17 to pull the baffle 16 upward.
[0041] Working principle: By pre-installing the adapter shaft 22 in the bearing housing 7 and connecting it to the stirring shaft 14 using the first coupling assembly 5, the stirring shaft 14 can be quickly installed simply by connecting the driving coupling at one end of the adapter shaft 22 to the driven coupling at one end of the stirring shaft 14. When it is necessary to replace the stirring shaft 14 with a different size, simply remove the driven coupling, replace it with a driven coupling that is compatible with the new stirring shaft 14, and reconnect it to the driving coupling to quickly connect it to the adapter shaft 22. The drive motor 4 drives the adapter shaft 22 to rotate through the second coupling assembly 21, thereby driving the rotation of the stirring shaft 14. This effectively solves the problem that the traditional mixer requires disassembling the old bearing 8 and replacing it with a bearing 8 compatible with the new stirring shaft 14 when replacing different types of stirring shafts 14, which is too cumbersome.
[0042] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0043] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.
[0044] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A dual-shaft total mixed ration mixer, comprising a bearing seat (7) mounted on the outside of a housing (1) via a connecting assembly, wherein a bearing (8) is coaxially fixedly disposed within the bearing seat (7), and a mixing shaft (14) is rotatably disposed inside the housing, characterized in that, The bearing is rotatably provided with a transfer shaft (22). One end of the transfer shaft (22) extends into the machine housing and is fixedly provided with a first coupling assembly (5). Both ends of the stirring shaft (14) are connected to the corresponding transfer shaft (22) through one of the first coupling assemblies (5). A motor (4) for driving the transfer shaft (22) to rotate is provided on one side of the machine housing (1). Its output shaft is connected to one end of one of the transfer shafts (22) through a second coupling assembly (21).
2. The twin-shaft total mixed ration mixer according to claim 1, characterized in that, The first coupling assembly (5) includes a driving end coupling (19) coaxially fixed to the adapter shaft (22) and a driven end coupling (20) coaxially fixed to one end of the stirring shaft (14). The connection between the stirring shaft (14) and the adapter shaft (22) is achieved by connecting the driving end coupling (19) and the driven end coupling (20).
3. The twin-shaft total mixed ration mixer according to claim 1, characterized in that, The stirring shaft (14) is coaxially fitted with a brush seat (10) at one end near the motor (4). A ring-shaped brush (13) is fixedly installed on the brush seat (10), and the bristles of the ring-shaped brush (13) are in contact with the inner wall of the housing (1).
4. A twin-shaft total mixed ration mixer according to claim 3, characterized in that, The casing (1) is surrounded by a spray pipe (6) around the inner wall. The spray pipe (6) has multiple sets of downward-facing spray nozzles along its length. The spray nozzles on the spray pipe (6) near the brush holder (10) face the annular brush (13).
5. A twin-shaft total mixed ration mixer according to claim 3, characterized in that, The housing (1) has multiple sets of through holes at corresponding positions to the bearing seat (7). The connecting components include bolts (9). The bolt (9) has a nut (12) threaded onto its shank (11) after it passes through the through hole from one side of the bearing seat (7).
6. A twin-shaft total mixed ration mixer according to claim 4, characterized in that, An observation port (3) is provided on the side of the housing (1) away from the motor, and a door panel (18) is hinged to the observation port (3).
7. A twin-shaft total mixed ration mixer according to claim 5, characterized in that, The bottom of the housing (1) is provided with a discharge port (15), and the discharge port (15) is provided with sliding grooves on both sides. A baffle (16) is slidably arranged in the sliding groove. A lifting mechanism for pulling the baffle (16) to slide in the sliding groove is provided on one side of the housing (1).
8. A twin-shaft total mixed ration mixer according to claim 7, characterized in that, The lifting mechanism includes an electric telescopic rod (17) hinged to one side of the housing (1), one end of which is hinged to one side of the baffle (16).