Feed grinder transmission device for livestock breeding

By lubricating the spur gears of the feed grinder using bevel gears, reciprocating lead screws, and spray pipe assemblies, the problem of spur gear wear was solved, enabling normal operation and extended service life.

CN223498637UActive Publication Date: 2025-10-31QINGDAO LINHAI JIANYE MASCH MFG CO LTD
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Patent Information

Application Number
CN202520132231.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-10-31
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

The spur gears of existing feed grinders wear out due to lack of lubrication when running at high speeds, affecting the transmission effect and making it impossible to guarantee normal operation.

Method used

The system employs a bevel gear, reciprocating lead screw, and piston plate assembly. Lubricating oil is sprayed through a spray pipe to lubricate the spur gear, and a heater and stirring shaft assembly are used to ensure that the lubricating oil melts and is evenly distributed.

Benefits of technology

It effectively reduces spur gear wear, ensures normal operation of the crusher, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The feed grinder transmission device for livestock breeding comprises a grinder shell, two grinding rollers are rotationally installed in the grinder shell, a first motor connected with one grinding roller is fixedly installed on the outer wall of the grinder shell, and a second motor connected with the other grinding roller is fixedly installed on the outer wall of the grinder shell. And straight gears are fixedly mounted on the outer walls of the two crushing roller rotating shafts correspondingly, the two straight gears are engaged with each other, and a reciprocating lead screw is rotationally mounted on the outer wall of the crusher shell through a moving frame. By arranging the bevel gears, the reciprocating lead screw, the piston plate and the like, the reciprocating lead screw can be driven to rotate under the vertical meshing of the two bevel gears, and the reciprocating lead screw can slide in the piston box in a sealing manner along with the piston plate when rotating, so that lubricating oil in the oil storage tank can be sucked; the two straight gears are conveyed into the spraying pipe and sprayed out through the multiple nozzles, so that the two straight gears can be wetted and replaced, abrasion of the two straight gears during meshing rotation is reduced, and normal operation of the pulverizer is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of feed grinder technology, and in particular to a transmission device for a feed grinder used in livestock breeding. Background Technology

[0002] A feed grinder is a device specifically designed to process raw materials such as crop straw, grains, and soybean meal into powdered feed. Its main purpose is to increase the surface area of ​​the feed and adjust the particle size, thereby making it more convenient to transport, store, mix, and granulate.

[0003] Feed grinders are widely used in feed processing, especially when raw materials such as corn cobs need to be ground into pellets or powders suitable for animal digestion. Such machines are particularly important because they improve feed utilization and save time and labor costs. In existing technology, the grinder uses two grinding rollers inside, driven by two interlocking spur gears, to grind the feed. However, the grinder lacks a direct lubrication system for the spur gears. When the spur gears rotate at high speed, the oil film between the gear teeth is destroyed, leading to direct contact and high-temperature, high-pressure, high-load operation. This causes wear on the two spur gears, compromising normal transmission and affecting the grinder's operation, thus reducing its practicality. Therefore, a new transmission device for a feed grinder used in livestock farming needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a transmission device for a feed grinder used in animal husbandry.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A transmission device for a feed grinder used in livestock farming includes a grinder housing. Two grinding rollers are rotatably mounted inside the grinder housing. A first motor connected to one of the grinding rollers is fixedly mounted on the outer wall of the grinder housing. Spur gears are fixedly mounted on the outer walls of the rotating shafts of both grinding rollers, and the two spur gears mesh with each other. A reciprocating screw is rotatably mounted on the outer wall of the grinder housing via a movable frame. Bevel gears are fixedly mounted on the outer walls of both the rotating shaft of one grinding roller and the reciprocating screw, and the two bevel gears mesh perpendicularly. A screw sleeve is rotatably mounted on the outer wall of the reciprocating screw. A limit rod is fixedly mounted inside the movable frame, and the limit rod slides through the screw sleeve. A piston box and an oil storage tank are fixedly mounted on the outer wall of the grinder housing via a support mechanism. A piston plate is slidably mounted inside the piston box. The outer wall of the screw sleeve is fixedly connected to the upper surface of the piston plate via a connecting mechanism. Two fixed sleeves are fixedly mounted on the outer wall of the grinder housing via a fixing mechanism. A spray pipe is fixedly mounted inside both fixed sleeves, and multiple nozzles communicating with the interior are fixedly mounted on the outer wall of the spray pipe.

[0007] Preferably, the support mechanism includes a support plate fixedly installed on the outer wall of the crusher housing, and the piston box and the oil storage tank are both fixedly installed on the upper end face of the support plate.

[0008] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the outer wall of the lead screw sleeve, and the end of the connecting rod is fixedly connected to the upper surface of the piston plate.

[0009] Preferably, the fixing mechanism includes a fixing rod fixedly installed on the outer wall of the crusher housing, and the end of the fixing rod is fixedly connected to the outer wall of the fixing sleeve.

[0010] Preferably, a discharge pipe and a suction pipe communicating with the interior are fixedly installed on the outer walls of both sides of the piston box, the end of the discharge pipe extends into the interior of the spray pipe, and a discharge one-way valve is fixedly installed inside the discharge pipe. The suction pipe passes through the interior of the oil storage tank, and a suction one-way valve is fixedly installed inside the suction pipe.

[0011] Preferably, a heater is fixedly installed inside the oil storage tank, a controller electrically connected to the heater is fixedly installed on the outer wall of the oil storage tank, a stirring shaft is rotatably installed inside the oil storage tank, a second motor connected to the stirring shaft is fixedly installed on the upper surface of the oil storage tank, multiple stirring rods are fixedly installed on the outer wall of the stirring shaft through a mounting sleeve, and a filling channel communicating with the interior is fixedly installed on the upper surface of the oil storage tank.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as bevel gears, reciprocating screws, and piston plates, the reciprocating screws can be driven to rotate under the vertical meshing of the two bevel gears. When the reciprocating screws rotate, they can slide the piston plate in a sealed manner inside the piston box, thereby drawing in the lubricating oil inside the oil tank and delivering it to the spray pipe and spraying it out through multiple nozzles. This can lubricate the two spur gears, reduce the wear of the two spur gears when they mesh and rotate, and ensure the normal operation of the crusher.

[0014] 2. By setting up components such as heaters, stirring shafts, and stirring rods, the heater can heat the solidified lubricating oil to melt it. The stirring shaft can drive multiple stirring rods to rotate through the mounting sleeve, thereby stirring the lubricating oil during the heating process, so that it can be heated evenly, thereby increasing the melting efficiency of the lubricating oil and preventing the lubricating oil from solidifying and affecting the lubrication effect on the gears. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the transmission device for a feed grinder for livestock farming proposed in this utility model;

[0016] Figure 2 For this Figure 1 A schematic diagram of the vertical section structure;

[0017] Figure 3 This is a side view of the transmission device for a feed grinder used in animal husbandry, as proposed in this utility model.

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram;

[0020] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point C.

[0021] In the diagram: 1. Crusher housing, 2. Crushing roller, 3. First motor, 4. Spur gear, 5. Moving frame, 6. Reciprocating screw, 7. Bevel gear, 8. Limiting rod, 9. Screw sleeve, 10. Support plate, 11. Piston box, 12. Oil tank, 13. Piston plate, 14. Connecting rod, 15. Fixing rod, 16. Fixing sleeve, 17. Spray pipe, 18. Nozzle, 19. Discharge pipe, 20. Suction pipe, 21. Heater, 22. Controller, 23. Stirring shaft, 24. Second motor, 25. Mounting sleeve, 26. Stirring rod, 27. Filling channel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-6 A transmission device for a feed grinder used in animal husbandry includes a grinder housing 1. Two grinding rollers 2 are rotatably mounted inside the grinder housing 1. A first motor 3 connected to one of the grinding rollers 2 is fixedly mounted on the outer wall of the grinder housing 1. Spur gears 4 are fixedly mounted on the outer walls of the rotating shafts of both grinding rollers 2, and the two spur gears 4 mesh with each other. A reciprocating screw 6 is rotatably mounted on the outer wall of the grinder housing 1 via a moving frame 5. A bevel gear 7 is fixedly mounted on the rotating shaft of one of the grinding rollers 2 and the outer wall of the reciprocating screw 6, and the two bevel gears 7 mesh perpendicularly. A screw sleeve 9 is rotatably mounted on the outer wall of the reciprocating screw 6. A limit rod 8 is fixedly mounted inside the moving frame 5. The limit rod 8 slides through the screw sleeve 9 and can limit the screw sleeve 9, so that the screw sleeve 9 can only move axially along the outer wall of the reciprocating screw 6.

[0024] A piston box 11 and an oil storage tank 12 are fixedly installed on the outer wall of the crusher housing 1 by a support mechanism. The support mechanism includes a support plate 10 fixedly installed on the outer wall of the crusher housing 1. Both the piston box 11 and the oil storage tank 12 are fixedly installed on the upper end face of the support plate 10. A piston plate 13 is slidably installed inside the piston box 11. The outer wall of the lead screw sleeve 9 is fixedly connected to the upper end face of the piston plate 13 by a connecting mechanism. The connecting mechanism includes a connecting rod 14 fixedly installed on the outer wall of the lead screw sleeve 9. The end of the connecting rod 14 is fixedly connected to the upper end face of the piston plate 13. Two fixing sleeves 16 are fixedly installed on the outer wall of the crusher housing 1 by a fixing mechanism. The fixing mechanism includes a fixing rod 15 fixedly installed on the outer wall of the crusher housing 1. The end of the fixing rod 15 is fixedly connected to the outer wall of the fixing sleeve 16.

[0025] Two fixed sleeves 16 are together fixedly installed inside a spray pipe 17. Multiple nozzles 18 communicating with the interior are fixedly installed on the outer wall of the spray pipe 17. The outer walls on both sides of the piston box 11 are respectively fixedly installed with a discharge pipe 19 communicating with the interior and a suction pipe 20. The end of the discharge pipe 19 extends into the interior of the spray pipe 17. A discharge check valve is fixedly installed inside the discharge pipe 19. The suction pipe 20 passes through the interior of the oil storage tank 12. A suction check valve is fixedly installed inside the suction pipe 20. A heater 21 is fixedly installed inside the oil storage tank 12. A controller 22 electrically connected to the heater 21 is fixedly installed on the outer wall of the oil storage tank 12. A stirring shaft 23 is rotatably installed inside the oil storage tank 12. A second motor 24 connected to the stirring shaft 23 is fixedly installed on the upper end face of the oil storage tank 12. Multiple stirring rods 26 are fixedly installed on the outer wall of the stirring shaft 23 through a mounting sleeve 25. A filling channel 27 communicating with the interior is fixedly installed on the upper end face of the oil storage tank 12.

[0026] When this utility model is in use, lubricating oil can be added to the oil storage tank 12 of the clamping roller through the filling channel 27. When crushing the feed, the first motor 3 can drive one of the crushing rollers 2 to rotate. One of the crushing rollers 2 then drives the other crushing roller 2 to rotate in the opposite direction through two meshing spur gears 4. Thus, the two crushing rollers 2 can crush the feed. At the same time, the rotating shaft of one of the crushing rollers 2 can drive the reciprocating screw 6 to rotate through two vertically meshing bevel gears 7. When the reciprocating screw 6 rotates, it can drive the screw sleeve 9 to move through the cooperation with the limit rod 8. Thus, the screw sleeve 9 can drive the piston plate 13 to slide in a sealed manner inside the piston box 11 through the cooperation of the connecting rod 14. When the piston plate 13 slides upward, a negative pressure can be formed inside the piston box 11. At this time, the negative pressure can draw the lubricating oil inside the oil storage tank 12 through the cooperation of the suction pipe 20 and the suction check valve.

[0027] When the piston plate 13 slides downwards, it can squeeze the lubricating oil inside the piston box 11 and deliver the lubricating oil to the spray pipe 17 through the cooperation of the discharge pipe 19 and the discharge check valve. The lubricating oil is then sprayed out from the spray pipe 17 through multiple nozzles 18, thereby spraying the lubricating oil onto the outer walls of the two spur gears 4 and the two bevel gears 7, thus achieving a lubrication effect, reducing the wear of the two spur gears 4 and the two bevel gears 7 during rotation, and improving their service life. When the ambient temperature is too low and the lubricating oil inside the oil storage tank 12 solidifies, the temperature of the heater 21 can be adjusted by the controller 22 to heat the solidified lubricating oil and melt it. During this process, the second motor 24 can drive the stirring shaft 23 to rotate, and the stirring shaft 23 can drive multiple stirring rods 26 to rotate through the mounting sleeve 25. This can stir the lubricating oil during the heating process, so that it can be heated evenly, thereby increasing the melting efficiency of the lubricating oil.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A transmission device for a feed grinder used in livestock farming, comprising a grinder housing (1), characterized in that, Two crushing rollers (2) are rotatably mounted inside the crusher housing (1). A first motor (3) connected to one of the crushing rollers (2) is fixedly mounted on the outer wall of the crusher housing (1). Spur gears (4) are fixedly mounted on the outer walls of the rotating shafts of both crushing rollers (2), and the two spur gears (4) mesh with each other. A reciprocating screw (6) is rotatably mounted on the outer wall of the crusher housing (1) via a moving frame (5). A bevel gear (7) is fixedly mounted on the outer wall of both the rotating shaft of one crushing roller (2) and the reciprocating screw (6), and the two bevel gears (7) mesh perpendicularly. A screw sleeve (9) is rotatably mounted on the outer wall of the reciprocating screw (6). The moving frame (5) A limiting rod (8) is fixedly installed inside the crusher housing (1). The limiting rod (8) slides through the lead screw sleeve (9). A piston box (11) and an oil storage tank (12) are fixedly installed on the outer wall of the crusher housing (1) through a support mechanism. A piston plate (13) is sealed and slidably installed inside the piston box (11). The outer wall of the lead screw sleeve (9) is fixedly connected to the upper end face of the piston plate (13) through a connecting mechanism. Two fixing sleeves (16) are fixedly installed on the outer wall of the crusher housing (1) through a fixing mechanism. A spray pipe (17) is fixedly installed inside the two fixing sleeves (16). A plurality of nozzles (18) communicating with the interior are fixedly installed on the outer wall of the spray pipe (17).

2. The transmission device for a feed grinder for livestock farming according to claim 1, characterized in that, The support mechanism includes a support plate (10) fixedly installed on the outer wall of the crusher housing (1), and the piston box (11) and the oil storage tank (12) are both fixedly installed on the upper surface of the support plate (10).

3. The transmission device for a feed grinder for livestock farming according to claim 2, characterized in that, The connecting mechanism includes a connecting rod (14) fixedly installed on the outer wall of the lead screw sleeve (9), and the end of the connecting rod (14) is fixedly connected to the upper end face of the piston plate (13).

4. The transmission device for a feed grinder for livestock farming according to claim 3, characterized in that, The fixing mechanism includes a fixing rod (15) fixedly installed on the outer wall of the crusher housing (1), and the end of the fixing rod (15) is fixedly connected to the outer wall of the fixing sleeve (16).

5. The transmission device for a feed grinder for livestock farming according to claim 4, characterized in that, The piston box (11) has a discharge pipe (19) and a suction pipe (20) that communicate with the interior fixedly installed on the outer walls of both sides. The end of the discharge pipe (19) extends into the spray pipe (17). A discharge check valve is fixedly installed inside the discharge pipe (19). The suction pipe (20) penetrates into the oil storage tank (12). A suction check valve is fixedly installed inside the suction pipe (20).

6. The transmission device for a feed grinder for livestock farming according to claim 5, characterized in that, A heater (21) is fixedly installed inside the oil storage tank (12). A controller (22) electrically connected to the heater (21) is fixedly installed on the outer wall of the oil storage tank (12). A stirring shaft (23) is rotatably installed inside the oil storage tank (12). A second motor (24) connected to the stirring shaft (23) is fixedly installed on the upper surface of the oil storage tank (12). Multiple stirring rods (26) are fixedly installed on the outer wall of the stirring shaft (23) through a mounting sleeve (25). A filling channel (27) communicating with the interior is fixedly installed on the upper surface of the oil storage tank (12).