A smashing mechanism of a total mixed ration preparation machine
By combining limiting components and fastening bolts, the problem of low tool maintenance efficiency in the pulverizing mechanism of the total mixed ration (TMR) preparation machine is solved, enabling rapid tool replacement and improved pulverizing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHIFENG JINGYUAN MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-23
AI Technical Summary
During the maintenance of the blades in the grinding mechanism of the existing total mixed ration (TMR) preparation machine, it is necessary to disassemble the bolts and nuts one by one, which results in low maintenance efficiency and the problem that bolts are prone to falling off in a confined space.
The combination of limiting components and fastening bolts, along with the design of slots and grooves, allows for easy and quick disassembly and installation of the crushing blades. The design of auxiliary components also prevents materials from getting stuck between the conveying auger and the outer shell, thereby improving crushing efficiency.
It enables quick blade replacement, improves maintenance efficiency, reduces downtime, and increases crushing efficiency by approximately 15%.
Smart Images

Figure CN224388926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of total mixed ration (TMR) preparation equipment, and in particular to a pulverizing mechanism for a TMR preparation machine. Background Technology
[0002] Total Mixed Ration (TMR) is a homogeneous nutritional feed that thoroughly mixes roughage, concentrate, minerals, vitamins, and other additives according to the different growth stages and physiological needs of animals. The TMR preparation machine is the core equipment in TMR production, and the performance of its grinding mechanism directly affects the uniformity of feed mixing, animal feeding efficiency, and overall farming profitability.
[0003] The crushing mechanism of the total mixed ration (TMR) preparation machine mainly consists of a feeding device, a crushing chamber, a cutting tool system, an auger assembly, a drive system, an intelligent control system, and a discharge port. After the material enters the device, it is first crushed and conveyed by the auger assembly. With the rotation of the auxiliary auger, the material forms a cyclical motion in the crushing chamber, increasing the number of times the material contacts the cutting tool, and shearing, cutting, and tearing the material.
[0004] Over time, the sharpness of the blades decreases. Currently, each blade is usually secured by two sets of bolts and nuts. During replacement and maintenance, operators need to use wrenches and other tools to unscrew the bolts and nuts one by one, remove the old blade, install the new blade, and tighten the bolts and nuts. In the confined space of the grinding chamber, bolts and nuts may fall off during disassembly and installation, reducing maintenance efficiency. Therefore, a grinding mechanism for a total mixed ration preparation machine is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a pulverizing mechanism for a total mixed ration (TMR) preparation machine, which aims to improve the problem in the prior art that "when maintaining and replacing the blades in the pulverizing mechanism of the prior art TMR preparation machine, bolts need to be disassembled one by one, resulting in reduced maintenance efficiency, and bolts are prone to falling off in the narrow space of the pulverizing chamber".
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crushing mechanism for a total mixed ration (TMR) preparation machine, comprising a base, an outer shell fixedly connected to the upper part of the base, a driving component disposed on the left side of the outer shell, a rotating shaft fixedly connected to the output end of the driving component, a crushing component and a conveying auger fixedly connected to the outer side of the rotating shaft, and two sets of auxiliary augers disposed on the upper part of the outer shell, the two sets of auxiliary augers being connected to the driving component in a transmission manner;
[0007] The crushing assembly includes a crushing blade fixedly connected to the arc surface of the rotating shaft. A fixing member is fixedly connected to the outer side of the crushing blade. A sliding groove is formed on the side of the crushing blade near the fixing member. A limiting member is slidably connected to the inner wall of the sliding groove. A slot is formed on the outer side of the crushing blade. A crushing blade is inserted into the inner wall of the slot. A retaining groove is formed on the outer side of the crushing blade. The limiting member is inserted into the inner wall of the retaining groove. A fastening bolt a is threadedly connected to the inner wall of the crushing blade. The left side of the fastening bolt a passes through the limiting member and the fixing member.
[0008] As a further description of the above technical solution:
[0009] An auxiliary disc is provided on the outside of the fastening bolt a, and a locking block is fixedly connected to the right side of the limiting member, the locking block being engaged with the outside of the auxiliary disc.
[0010] As a further description of the above technical solution:
[0011] The card block is L-shaped, and the side of the card block closest to the auxiliary disk is set as an inclined surface.
[0012] As a further description of the above technical solution:
[0013] The outer sides of the fasteners are all inclined surfaces.
[0014] As a further description of the above technical solution:
[0015] The slot and the slide are interconnected.
[0016] As a further description of the above technical solution:
[0017] An auxiliary component is provided on the right side of the outer casing near the conveying auger. The auxiliary component includes a contact block, which is inserted into the inner side of the outer casing. The contact block is fixedly installed on the surface of the outer casing by a fastening bolt b, and a gasket is provided between the fastening bolt b and the outer casing.
[0018] As a further description of the above technical solution:
[0019] The contact block is hemispherical on the side closest to the conveying auger.
[0020] As a further description of the above technical solution:
[0021] The auxiliary components are provided in multiple sets, and the multiple sets of auxiliary components are spirally arranged with the rotating shaft as the central axis.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the crushing blade is inserted into the crushing leaf through the slot and fixed by the limiting member. Then, the fastening bolt a passes through the limiting member and locks it with the fixing member. The blade is easy to install and disassemble, and can be quickly replaced after wear, which improves maintenance efficiency and reduces downtime maintenance time.
[0024] 2. In this utility model, multiple sets of auxiliary components are set on the right side of the outer shell. The contact blocks are hemispherical and spirally distributed around the rotating shaft. The hemispherical contact blocks can form gaps and squeeze with the spiral blades of the conveying auger. The spiral layout makes the material continuously squeezed during the conveying process, thereby preventing the material from getting stuck between the conveying auger and the outer shell and improving the crushing efficiency. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0026] Figure 2 This is a top-view three-dimensional structural diagram of the overall device in this utility model;
[0027] Figure 3 This is a three-dimensional structural diagram of the disassembled crushing component in this utility model;
[0028] Figure 4 This utility model Figure 3 Enlarged 3D structural diagram at point A;
[0029] Figure 5 This is a three-dimensional structural diagram of the disassembled auxiliary components in this utility model.
[0030] Legend:
[0031] 1. Base; 2. Housing; 3. Drive component; 4. Shaft; 5. Crushing assembly; 51. Crushing blade; 52. Fixing component; 53. Slide; 54. Limiting component; 55. Slot; 56. Slot; 57. Fastening bolt a; 571. Auxiliary disc; 572. Locking block; 6. Conveying auger; 7. Auxiliary auger; 8. Auxiliary assembly; 81. Contact block; 82. Fastening bolt b; 83. Gasket; 9. Discharge port; 10. Crushing blade. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1-3This utility model provides an embodiment of a total mixed ration (TMR) preparation machine crushing mechanism, including a base 1 as the basic structure of the entire machine, with a shell 2 fixed by bolts or welding. The shell 2 is fixedly connected to the upper part of the base 1, and a feed inlet is opened on the upper part of the shell 2 to connect with an external hopper or conveying device, while preventing feed splashing and operator contact with dangerous areas, meeting safety standards. A discharge port 9 is provided on the left side of the base 1, which is composed of a hydraulic rod and a material gate. This technology is existing technology. After opening, the material is discharged through a conveying auger 6. A drive component 3 is provided on the left side of the shell 2. The drive component 3 adopts a combination of a high-efficiency three-phase asynchronous motor YE2-160L-2 (18.5KW) and a ZQ400 reducer, and is connected by two sets of... Chains and multiple sprockets drive two sets of auxiliary augers 7 to the rotating shaft 4, providing stable power for the auxiliary augers 7 and the crushing assembly 5. This technology is existing technology. The output end of the drive component 3 is fixedly connected to the rotating shaft 4. The drive component 3 is connected to the rotating shaft 4 through a coupling. The rotating shaft 4 serves as the core drive shaft, synchronously driving the crushing assembly 5 and the conveying auger 6 to rotate. The outer side of the rotating shaft 4 is fixedly connected to the crushing assembly 5 and the conveying auger 6. The spiral blades are distributed along the axial direction of the rotating shaft 4, conveying the initially crushed material to the crushing chamber where the crushing assembly 5 is located to form a cyclic motion. Two sets of auxiliary augers 7 are provided on the upper part of the outer shell 2, which are used to convey the upward-moving material to the direction of the conveying auger 6 to achieve cyclic motion. The two sets of auxiliary augers 7 are driven by the drive component 3.
[0034] Reference Figure 2 and Figure 3 The crushing component 5 includes a crushing blade 51 fixedly connected to the arc surface of the rotating shaft 4. The crushing blade 51 is inclined and can push the material to move while driving the crushing blade 10 to cut the material. A fixing member 52 is fixedly connected to the outside of the crushing blade 51. The fixing member 52 is welded to the outside of the crushing blade 51 and is used to close the slide groove 53 to prevent the limiting member 54 from disengaging from the slide groove 53. The outer side of the fixing member 52 is inclined, which can reduce the obstruction between the fixing member and the material when the material is stirred. The side of the crushing blade 51 near the fixing member 52 has a slide groove 53 to provide movement space for the limiting member 54.
[0035] Furthermore, a limiting member 54 is slidably connected to the inner wall of the chute 53. By inserting into the inner wall of the slot 55 of the crushing blade 10, multiple sets of crushing blades 10 are simultaneously limited. During maintenance, multiple sets of crushing blades 10 can also be disassembled and replaced quickly, reducing downtime for maintenance. A slot 56 is provided on the outer side of the crushing blade 51 to provide installation space for the crushing blade 10, which can restrict the crushing blade 10 in multiple directions. The slot 56 is connected to the chute 53. The crushing blade 10 is inserted into the inner wall of the slot 56 for crushing materials. A slot 55 is provided on the outer side of the crushing blade 10, which cooperates with the limiting member 54 to fix multiple sets of crushing blades 10 at the same time. The limiting member 54 is inserted into the inner wall of the slot 55. A fastening bolt a57 is threadedly connected to the inner wall of the crushing blade 51. The threaded connection provides axial locking force to ensure the reliability of the fixing of the limiting member 54 and the blade. The fastening bolt a57 passes through the limiting member 54 and the fixing member 52 on the left side.
[0036] Reference Figure 3 and Figure 4 An auxiliary disc 571 is provided on the outside of the fastening bolt a57, which cooperates with the L-shaped locking block 572 of the limiting member 54 to form a mechanical locking structure. The deformation of the locking block 572 limits the auxiliary disc 571 to prevent the fastening bolt a57 from falling off. At the same time, the auxiliary disc 571 increases the contact area between the fastening bolt a57 and the limiting member 54, thereby increasing the friction and reducing the occurrence of loosening of the fastening bolt a57. The locking block 572 is fixedly connected to the right side of the limiting member 54. The locking block 572 is locked on the outside of the auxiliary disc 571. The locking block 572 is set in an L shape to prevent the auxiliary disc 571 from falling off. The side of the locking block 572 near the auxiliary disc 571 is set as an inclined surface. The inclined surface allows the auxiliary disc 571 to be inserted into the inner wall of the locking block 572. An auxiliary component 8 is provided on the right side of the outer shell 2 near the conveying auger 6.
[0037] Reference Figure 1 , Figure 2 and Figure 5The auxiliary component 8 includes a contact block 81. The side of the contact block 81 closest to the conveying auger 6 is set in a hemispherical shape. The hemispherical end face forms a gap of about 2-5mm with the spiral blades of the conveying auger 6. When the material passes by as the auger rotates, it is squeezed by the contact block 81, which can break larger particles or fiber bundles and further refine the particle size. At the same time, the hemispherical curved surface reduces the risk of material retention. The spirally distributed multiple sets of contact blocks 81 ensure that the material is continuously squeezed during the conveying process, avoiding getting stuck between the auger blades and the outer shell 2, and improving the stability of equipment operation. The contact block 81 is inserted into the inner side of the outer shell 2 and is fixedly installed on the surface of the outer shell 2 by fastening bolts b82. The fastening bolts b82 are used to quickly install the contact block 81 on the outer shell 2. A gasket 83 is provided between the fastening bolts b82 and the outer shell 2. The gasket 83 can increase the contact area and prevent the bolt from loosening and causing the contact block 81 to fall off. The auxiliary component 8 is provided in multiple sets, and the multiple sets of auxiliary components 8 are spirally arranged with the rotating shaft 4 as the central axis.
[0038] Working principle: During use, the material enters the crushing chamber through the feed inlet at the top of the outer shell 2. First, it is axially conveyed by the spiral blades of the conveying auger 6. At the same time, the gap between the blades and the inner wall of the outer shell 2 compresses the material, achieving initial crushing. When the conveying auger 6 conveys to the left, the material will accumulate upward due to compression. The rotation direction of the auxiliary auger 7 is opposite to that of the conveying auger 6. Under the rotation of the auxiliary auger 7, the material is conveyed to the right side of the outer shell 2, forming a circulating convection, so that the material forms a compound motion trajectory of "axial movement + circumferential tumbling" in the crushing chamber.
[0039] The crushing assembly 5 rotates with the rotating shaft 4. When the cutting edge of the crushing blade 10 on the outer side of the crushing blade 51 comes into contact with the material, the shearing force generated by the rotation cuts fibrous grass, straw, etc. The inclined surface on the outer side of the fixing part 52 guides the material to flow towards the blade area. When the crushing blade 51 rotates, it squeezes the material. With the fixing structure of the limiting part 54 and the slot 55, the blade can work stably under high load.
[0040] The contact block 81 of the auxiliary component 8 forms a gap of 2-5mm with the blades of the conveying auger 6. When the material passes through as the auger rotates, it is squeezed by the contact block 81, further crushing larger particles. It is especially suitable for crushing silage. At the same time, multiple sets of contact blocks 81 are spirally distributed around the rotating shaft 4. As the material moves axially with the auger, it is continuously squeezed by the hemispherical end face, avoiding getting stuck between the auger blades and the outer shell 2, reducing the risk of equipment blockage, and improving the crushing efficiency by about 15%.
[0041] When maintenance or replacement of the crusher blade 10 is required, use a wrench to loosen the fastening bolt a57. Since the locking block 572 is L-shaped and the auxiliary plate 571 is engaged with the inner wall of the locking block 572, when the bolt is loosened, it will drive the limiting member 54 to move. Continuously rotate the fastening bolt a57 to make the limiting member 54 completely exit from the locking groove 55 of the crusher blade 10, thereby releasing the lateral limitation on the crusher blade 10.
[0042] After the limiting member 54 is disengaged from the slot 55, the crushing blade 10 is connected to the crushing leaf 51 only through the slot 56. At this time, the crushing blade 10 can be pulled out along the axial direction of the slot 56. Align the new crushing blade 10 with the slot 56 and insert it, ensuring that the tail of the blade is fully embedded in the bottom of the slot 56 to avoid shaking during rotation due to improper installation. Use a wrench to turn the fastening bolt a57 clockwise. The bolt head will press the limiting member 54 through the auxiliary plate 571, so that the limiting member 54 is tightly attached to the fixing member 52 and the crushing leaf 51 to complete the installation.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pulverizing mechanism for a total mixed ration (TMR) preparation machine, comprising a base (1), characterized in that: The base (1) is fixedly connected to the upper part of the outer shell (2), the left side of the base (1) is provided with a discharge port (9), the left side of the outer shell (2) is provided with a drive component (3), the output end of the drive component (3) is fixedly connected with a rotating shaft (4), the outer side of the rotating shaft (4) is fixedly connected with a crushing component (5) and a conveying auger (6), the upper part of the outer shell (2) is provided with two sets of auxiliary augers (7), and the two sets of auxiliary augers (7) are connected to the drive component (3) in a transmission connection. The crushing assembly (5) includes a crushing blade (51) fixedly connected to the arc surface of the rotating shaft (4). A fixing member (52) is fixedly connected to the outside of the crushing blade (51). A groove (53) is provided on the side of the crushing blade (51) near the fixing member (52). A limiting member (54) is slidably connected to the inner wall of the groove (53). A slot (56) is provided on the outside of the crushing blade (51). A crushing blade (10) is inserted into the inner wall of the slot (56). A slot (55) is provided on the outside of the crushing blade (10). The limiting member (54) is inserted into the inner wall of the slot (55). A fastening bolt a (57) is threadedly connected to the inner wall of the crushing blade (51). The fastening bolt a (57) passes through the limiting member (54) and the fixing member (52) on the left side.
2. The pulverizing mechanism of a total mixed ration (TMR) preparation machine according to claim 1, characterized in that: An auxiliary disc (571) is provided on the outside of the fastening bolt a (57), and a locking block (572) is fixedly connected to the right side of the limiting member (54), and the locking block (572) is locked on the outside of the auxiliary disc (571).
3. The pulverizing mechanism of a total mixed ration (TMR) preparation machine according to claim 2, characterized in that: The card block (572) is L-shaped, and the side of the card block (572) near the auxiliary disk (571) is set as an inclined surface.
4. The pulverizing mechanism of a total mixed ration (TMR) preparation machine according to claim 1, characterized in that: The outer side of the fastener (52) is an inclined surface.
5. The pulverizing mechanism of a total mixed ration (TMR) preparation machine according to claim 1, characterized in that: The slot (56) and the slide (53) are interconnected.
6. The pulverizing mechanism of a total mixed ration (TMR) preparation machine according to claim 1, characterized in that: An auxiliary component (8) is provided on the right side of the outer shell (2) near the conveying auger (6). The auxiliary component (8) includes a contact block (81), which is inserted into the inner side of the outer shell (2). The contact block (81) is fixedly installed on the surface of the outer shell (2) by a fastening bolt b (82). A gasket (83) is provided between the fastening bolt b (82) and the outer shell (2).
7. The pulverizing mechanism of a total mixed ration (TMR) preparation machine according to claim 6, characterized in that: The contact block (81) is hemispherical on the side near the conveying auger (6).
8. The pulverizing mechanism of a total mixed ration (TMR) preparation machine according to claim 6, characterized in that: The auxiliary components (8) are provided in multiple sets, and the multiple sets of auxiliary components (8) are spirally arranged with the rotating shaft (4) as the central axis.