A bale press for square bales
By designing a seated outer spherical ball bearing, grass-pulling teeth, and anti-tangling roller structure in the tracked self-propelled square hay baler, the problems of grass jamming and tangling were solved, improving work quality and production efficiency, and enhancing operational reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUBEI YULONG MACHINERY
- Filing Date
- 2024-10-09
- Publication Date
- 2026-06-05
Smart Images

Figure CN119032749B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of agricultural machinery technology, specifically to a conveying device for a tracked self-propelled square hay baler. Technical Background
[0002] The tracked self-propelled baler is a cylindrical straw feeding device, a key component of the baler. The normal process of a tracked self-propelled square straw baler is as follows: straw pickup → feeding through the conveyor roller → material passing through the conveyor trough → entering the feeding roller → baler. When the tracked baler is in operation, there are sometimes sudden large amounts of straw entering the machine, causing the straw feeding device to jam. At the same time, the roller shaft bearings are easily entangled by straw, even causing twisting, which seriously affects the working quality and production efficiency of the baler, resulting in poor operational reliability and reduced roller lifespan. Moreover, the feeding roller is located inside the square straw baler, making it difficult to maintain and requiring long maintenance times, thus affecting the normal production of the baler.
[0003] Chinese patent application publication number CN 104221582 A, entitled "Upper Straw Conveying Channel and Anti-clogging Device for Combine Harvesting Baler," describes an anti-clogging device comprising a right valve, a left valve, a V-shaped linkage mechanism, a sensor, an electric push rod, and a controller. The anti-clogging device is located between the outer cylinder of the vertical auger and the straw inlet of the baler. The right and left valves, located at the lower part of the vertical auger conveyor, form a closed circumference with the vertical auger cylinder. The right and left valves are hinged to the lower section of the outer cylinder of the vertical auger and can rotate around the end hinges. The sensor is installed inside the right and left valves to measure the density of the material inside the vertical auger conveyor before it enters the straw inlet of the baler. The electric push rod is mounted on the frame and connected to the right and left valves via the V-shaped linkage mechanism.
[0004] When sensor 604 detects that the pressure of the material inside the vertical auger conveyor 4 on the valve exceeds the set value, it means that the baling device 5 has malfunctioned and the material cannot enter the compression chamber 502. Controller 607 controls the shortening of the electric push rod 606 to open the right valve 601 and the left valve 602, causing the material inside the vertical auger conveyor 4 to be discharged from the machine and not enter the compression chamber 502. This causes the baler to stop baling, and the technical problem of the straw baler is not solved. Summary of the Invention
[0005] To solve the above-mentioned technical problems, a feeding roller is provided to prevent straw jamming, blockage, tangling, and straw leakage from the straw feeding device of the baler.
[0006] The technical solution of this invention is:
[0007] A cylindrical feeding device for a square hay baler, comprising a feeding roller assembly including: a seated outer spherical ball bearing, a main wall plate, an end cap, hay-pulling teeth, secondary hay-pulling teeth, a conveying roller shaft, a hay-pulling tooth reinforcing plate, and an anti-tangling roller;
[0008] The mounted spherical ball bearing, wall plate, and end cover are sequentially installed at both ends of the conveyor roller shaft.
[0009] The anti-tangling roller is placed in the middle of the conveyor roller shaft, and the grass-removing teeth are arranged equidistantly on the winding roller. The grass-removing teeth are inclined at a certain angle to the shaft. There are grass-removing auxiliary teeth between each row of grass-removing teeth. The grass-removing auxiliary teeth have sharp teeth.
[0010] The non-working surface of the grass-removing tooth is equipped with a grass-removing tooth reinforcement plate.
[0011] Furthermore, the aforementioned grass-removing teeth have a total of 5 rows of teeth, of which 3 rows have 6 teeth and 2 rows have 5 teeth, with the 5 and 6 teeth evenly and intersectingly distributed.
[0012] Furthermore, the aforementioned mounted spherical roller bearing is a self-aligning bearing.
[0013] Furthermore, an anti-entanglement ring is provided between the conveyor roller shaft and the mounted spherical ball bearing.
[0014] Furthermore, the aforementioned anti-tangling roller has an overall cylindrical structure, with the cylinder divided into two halves. Each half is locked and tightened with four bolts, and both ends are positioned with circular end caps. The cylinder is fixed to the end caps 3 with four bolts respectively.
[0015] The beneficial results of this invention are as follows: 1. The outer circumference of the roller has 5 rows of teeth. Among them, there are 3 rows of 6 teeth and 2 rows of 5 teeth. These 5 rows of teeth are distributed in an alternating manner. In order to strengthen the teeth and ensure sufficient strength between them, a special grass-pulling auxiliary tooth (equivalent to a connecting plate) is welded between two teeth. Its functions are to strengthen the roller and to assist in the conveying process during grass feeding, thus preventing grass leakage.
[0016] 2. To prevent straw from falling off while rotating with the drum, the teeth were welded at an angle to the shaft, facilitating the separation of straw on the high-speed rotating drum. To enhance the strength of each straw-removing tooth 4, a reinforcing plate was welded to the non-working surface of the tooth, improving its stability.
[0017] 3. Since the toothed rod is cylindrical, the straw may slip out and not be fed into the compression chamber. We designed and welded a row of auxiliary teeth between the teeth. The teeth are triangular pointed teeth, which effectively improves the scraping ability of the auxiliary teeth.
[0018] 4. The cylinder is cylindrical in shape. For easy installation, the cylinder is divided into two halves. Each half is locked and tightened with four bolts. The two ends are positioned with circular end caps. The cylinder is fixed to the end caps with four bolts to prevent axial movement of the cylinder. The two ends of the central shaft are mounted on the main frame of the square binding machine with self-aligning bearings.
[0019] 5. Each end of the roller is connected by an end cap. There is a main shaft in the center of the end cap. Each end of the shaft is equipped with a self-aligning bearing for easy installation and mechanical transmission. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the tracked self-propelled square hay baler of the present invention;
[0021] Figure 2 This is a schematic diagram of the conveying and feeding roller assembly of the tracked self-propelled square hay baler of the present invention;
[0022] Figure 3 This is a structural schematic diagram of the grass-removing teeth and grass-removing tooth reinforcing plate of the conveyor feed roller assembly;
[0023] Figure 4 This is a schematic diagram of the anti-tangling roller of the conveying and feeding roller assembly of the present invention;
[0024] Figure 5 yes Figure 4 A structural schematic diagram of the side view;
[0025] Figure 6 This is a schematic diagram of the anti-tangling ring structure of the conveying and feeding roller assembly of the present invention;
[0026] Figure 7 This is a schematic diagram of the end cover of the conveying and feeding roller assembly of the present invention;
[0027] Figure 8 This is a schematic diagram of the grass-removing auxiliary teeth of the conveying and feeding roller assembly of the present invention;
[0028] The components are: 1-Detector assembly; 2-Conveyor roller assembly; 3-Material conveying trough assembly; 4-Conveyor feed roller assembly; 5-Baleer assembly;
[0029] 41-Spherical ball bearing with seat; 42-Main wall panel of square baler; 43-End cover; 44-Grass-pulling tooth; 45-Grass-pulling auxiliary tooth; 46-Conveyor roller shaft; 47-Anti-tangle ring; 48-Grass-pulling tooth reinforcement plate; 49-Anti-tangle roller. Detailed Implementation
[0030] The following embodiments are further illustrations of the present invention, but not limitations on the scope of the invention.
[0031] See Figure 1 The baler of the present invention is mainly composed of four parts: a detector assembly 1, a conveying roller assembly 2, a material conveying trough assembly 3, a conveying and feeding roller assembly 4, and a baler assembly 5.
[0032] The picker assembly 1 picks up the straw and sends it into the conveyor roller assembly 2. The conveyor roller assembly 2, through the auger and other means, sends the straw into the conveyor feeding roller assembly 4 via the material conveying trough. The conveyor feeding roller assembly 4 then sends the straw from the conveying trough of the material conveying trough assembly 3 into the compression chamber of the baler assembly 5.
[0033] The production flow of the square straw baler of the present invention is as follows:
[0034] Straw feeding process flow chart
[0035] Straw collection → feeding through conveyor rollers → material passes through conveyor trough → enters feeding rollers → baler.
[0036] See Figure 2-8 The conveyor roller assembly 4 includes a seated outer spherical ball bearing 41, a square baler main wall plate 42, an end cover 43, a straw-pulling tooth 44, a straw-pulling auxiliary tooth 45, a conveyor roller shaft 46, an anti-tangling ring 47, a straw-pulling tooth reinforcing plate 48, and an anti-tangling roller 49.
[0037] The anti-tangling roller 49 has 5 rows of teeth evenly distributed, with each row of teeth welded in an alternating pattern. There are 3 rows with 6 teeth each and 2 rows with 5 teeth each. These 5 rows of teeth are evenly distributed in an alternating pattern. In order to strengthen the teeth, a special reinforcing plate, namely the straw-pulling auxiliary tooth, is welded between the two teeth. Its functions are firstly to act as a reinforcing plate, and secondly, the sharp teeth of the straw-pulling auxiliary tooth play an auxiliary role in conveying straw during the straw feeding process. It also prevents straw leakage. The purpose is to ensure that there are no dead corners in the straw conveying process.
[0038] Since the tooth bar of the grass-removing tooth 44 is cylindrical, the straw may slip out and not be fed into the compression chamber. A row of grass-removing auxiliary teeth 45 is designed and welded between the teeth. The grass-removing auxiliary teeth 45 have a pointed structure, which effectively improves the grass-removing auxiliary teeth 45 scraping ability.
[0039] This ensures that the straw inside the drum is conveyed in a timely manner, preventing straw jamming. At the same time, the drum shaft bearings are also prevented from being entangled by plant stalks, and the straw-pulling teeth 44 are prevented from twisting, thus improving the working quality and production efficiency of the baler and making it highly reliable in operation.
[0040] The anti-tangling roller 49 is connected to an end cap 43 at each end. There is a conveyor roller shaft 46 at the center of the end cap 43. Each end of the conveyor roller shaft 46 is equipped with a seated outer spherical ball bearing 41. It is mechanically driven and rotates at 1000 to 1200 revolutions per minute.
[0041] The mounted spherical roller bearing 41 can be a self-aligning bearing; this makes installation easier.
[0042] The main wall panel 42 of the square bundling machine forms the conveying channel.
[0043] See Figure 4 and 5 The anti-tangling roller 49 has a cylindrical structure. For easy installation, the cylinder is divided into two halves. Each half is locked and tightened with four bolts. Both ends are positioned with round end caps. The cylinder is fixed to the end caps with four bolts to prevent axial movement of the cylinder. The central shaft is mounted on the main frame of the square binding machine with self-aligning bearings at both ends.
[0044] See Figure 3 The straw-removing teeth 44 are tilted at an angle to the shaft during welding to facilitate the separation of straw on the high-speed rotating drum; this is to prevent the straw from rotating with the drum and falling off.
[0045] The tilt angle can be 5-25°, but 10° is preferred.
[0046] To enhance the strength of each grass-removing tooth 4, a grass-removing tooth reinforcing plate 48 is welded to the non-working surface of the tooth, which improves the stability of the grass-removing tooth 4 and prevents it from heating up and deforming during high-speed rotation.
[0047] The anti-tangling ring 47 is mainly to prevent the bearing part from being tangled by straw, which has good reliability and improves the service life of the roller.
[0048] The specific examples of the present invention have been described in detail above, but they are merely illustrative, and the present invention is not limited to the specific examples described above. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention.
Claims
1. A cylindrical feeding device for a square hay baler, characterized in that, Includes a conveyor feed roller assembly, the conveyor... The feed roller assembly includes: a seated outer spherical ball bearing (41), a main wall plate (42), an end cover (43), grass-pulling teeth (44), a conveyor roller shaft (46), a grass-pulling tooth reinforcing plate (48), and an anti-tangling roller (49). Among them, the mounted spherical ball bearing (41), the main wall plate (42) and the end cover (43) are installed at both ends of the conveying roller shaft (46) in sequence, and the mounted spherical ball bearing (41) is a self-aligning bearing; The winding roller (49) is installed in the middle of the conveying roller shaft (46). The grass-removing teeth (44) are arranged equidistantly on the winding roller (49). When the rows of grass-removing teeth (44) are welded, they are inclined at a certain angle to the shaft. Grass-removing auxiliary teeth (45) are welded between each row of grass-removing teeth (44). The grass-removing auxiliary teeth (45) have sharp teeth. A special reinforcing plate, namely the grass-removing auxiliary tooth, is welded between the two teeth. Its functions are firstly to act as a reinforcing plate, and secondly, the sharp teeth of the grass-removing auxiliary tooth play an auxiliary role in conveying grass during the grass feeding process. At the same time, it avoids grass leakage. Its purpose is to ensure that there are no dead corners in the process of straw conveying. The non-working surface of the grass-removing tooth (44) is provided with a grass-removing tooth reinforcement plate (48).
2. The cylindrical straw feeding device as described in claim 1, characterized in that, The grass-removing teeth (44) have a total of 5 rows of teeth, among which... The grass-pulling teeth (44) have 6 teeth in 3 rows and 5 teeth in 2 rows, and the 5 teeth and 6 teeth are evenly distributed in an alternating pattern.
3. The cylindrical straw feeding device as described in claim 1, characterized in that, An anti-tangling ring (47) is provided between the conveyor roller shaft (46) and the mounted spherical ball bearing (41).
4. The cylindrical straw feeding device as described in claim 1, characterized in that, The anti-tangling roller (49) is a cylindrical structure. The cylinder is divided into two halves, each half of which is locked and pressed with bolts. The two ends are positioned by the circular end caps (43), which fix the cylinder to the end caps (43).