Bilateral chain-driven bundling machine

Abstract

The utility model discloses a bilateral chain-driven bundling machine and belongs to the field of agricultural machinery. A front bin is hinged to a hinged plate through a first hinged roller, a second hinged roller of a rear bin is hinged to the hinged plate, a bin locking hook is installed on the side wall of the rear bin through a bin locking hook installation shaft, one end of the bin locking hook is connected with the front bin in a clamped mode through a locking shaft, the other end of the bin locking hook is hinged to one end of an overturning oil cylinder, and the other end of the overturning oil cylinder is hinged to the side wall of the front bin. A plurality of rollers are rotatably mounted on the inner circumferences of the front bin and the rear bin, a pickup is rotatably mounted below the rear bin, a transmission gear box in the rear bin is connected with a power output shaft, and the power output shaft is respectively connected with the rollers through a chain wheel transmission mechanism. The problems that a traditional transmission scheme has remarkable defects in the aspects of power transmission balance, dynamic synchronization precision, environmental adaptability and full life cycle cost control are solved, the chain wheel transmission mechanisms are symmetrically arranged, power is evenly distributed, the problem of torque unbalance loading of single-side driving is solved, and the service life of a chain and a chain wheel is remarkably prolonged.

Description

Technical Field

[0001] This utility model relates to a double-sided chain-driven baler, belonging to the field of agricultural machinery. Background Technology

[0002] Balers, widely used automated equipment in agriculture and industry, are primarily used to compress, bundle, and shape loose materials such as straw, hay, and waste. Their core function relies on the stability and reliability of the power transmission system, while the design of the transmission structure directly determines the equipment's working efficiency, service life, and maintenance costs.

[0003] Currently, most mainstream balers on the market use single-side chain drive, belt drive, or gear drive systems. However, these traditional technologies have the following significant drawbacks in practical applications:

[0004] 1. Uneven force distribution problem in single-sided chain drive

[0005] In existing single-sided chain drive systems, power is transmitted to the actuators, such as the baling rollers or feeding mechanisms, only through one side of the chain. This asymmetrical transmission method leads to significant torque imbalance during equipment operation, which can easily cause frame deformation, chain tensile fatigue, and even accelerated wear on the sprocket teeth after long-term use. Furthermore, single-sided drive makes it difficult to ensure the synchronization of the actuators on both sides, especially during high-speed operations, potentially resulting in loose baling or uneven material compression, severely impacting the quality of the bale.

[0006] 2. Belt drives suffer from high power loss and require frequent maintenance.

[0007] Some equipment uses belt drives to reduce noise, but belts are susceptible to environmental temperature, humidity, and tension. Under high load conditions, they are prone to slippage, elongation, or even breakage, resulting in a significant decrease in power transmission efficiency, typically by 15%-20%. At the same time, frequent adjustments to the tensioning device and belt replacements greatly increase equipment downtime for maintenance, making it difficult to meet the needs of continuous operation.

[0008] 3. The complexity and cost limitations of gear transmission

[0009] While gearbox drives offer high transmission accuracy, their complex sealing structure makes them susceptible to abnormal gear wear due to lubricant contamination in dusty and humid operating environments. Furthermore, the high precision requirements for gear machining significantly increase manufacturing costs, and their inability to adapt to transmission scenarios with large wheelbase spans limits their widespread adoption in small and medium-sized balers.

[0010] In summary, traditional transmission solutions have significant shortcomings in terms of power transmission balance, dynamic synchronization accuracy, environmental adaptability, and life-cycle cost control.

[0011] Therefore, there is an urgent need to develop a new type of double-sided chain-driven baler to solve the above-mentioned technical problems. Utility Model Content

[0012] The purpose of this invention is to address the significant shortcomings of traditional transmission schemes in terms of power transmission balance, dynamic synchronization accuracy, environmental adaptability, and life-cycle cost control. The dual-side chain drive technology, through symmetrical power distribution and redundant design, provides a new technical approach to solving these problems. A brief overview of this invention is provided below to offer a basic understanding of certain aspects of it. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit the scope of the invention.

[0013] The technical solution of this utility model:

[0014] The double-sided chain-driven baler includes a front compartment, a rear compartment, a hinge plate, a suspension frame, a tilting cylinder, a locking hook, a locking hook mounting shaft, wheels, a pickup, a transmission gearbox, a power output shaft, rollers, a sprocket transmission mechanism, a first hinged roller, and a second hinged roller. The left and right sides above the front compartment are hinged to the hinge plate via the first hinged roller, and the left and right sides above the rear compartment are hinged to the hinge plate via the second hinged roller. Locking hooks are rotatably mounted on the left and right side walls of the rear compartment via the locking hook mounting shaft. One end of each locking hook is connected to the front compartment via a locking shaft. The compartment is connected by a locking hook, with one end of the locking hook hinged to one end of the tilting cylinder, and the other end of the tilting cylinder hinged to the side wall of the front compartment. The front and rear compartments are connected front and rear. Multiple rollers are arranged and rotated around the circumference inside the front and rear compartments, forming a bundling area. The bottom of the front compartment is equipped with a walking wheel, and a pickup is rotated and installed below the front compartment. A transmission gearbox is installed on a suspension frame inside the front compartment. Power output shafts are connected to the left and right ends of the transmission gearbox, and both ends of the power output shafts are connected to multiple rollers through a sprocket transmission mechanism.

[0015] Preferably, the sprocket drive mechanism includes a roller sprocket, a drive sprocket, a first chain, a second chain, and a chain tensioning mechanism. Both ends of the roller, the first hinged roller, and the second hinged roller are respectively equipped with roller sprockets. The roller installed in the rear compartment is connected at its end to the roller sprocket on the first hinged roller via the first chain. The roller installed in the front compartment is connected at its end to the roller sprocket on the second hinged roller via the second chain. Both the drive sprocket and the first chain are equipped with chain tensioning mechanisms. The end of the power output shaft is equipped with a drive sprocket, which meshes with the first chain. Both ends of the first hinged roller and the second hinged roller are also respectively equipped with drive sprockets connected by drive chains.

[0016] Preferably, the pickup includes a pickup mounting frame, a grass-picking roller, a pickup driven sprocket, a pickup driving sprocket, and a pickup chain. The pickup mounting frame is rotatably mounted below the front compartment via a roller. The grass-picking roller is rotatably mounted on the pickup mounting frame. The pickup driven sprocket is mounted at the end of the grass-picking roller. The pickup driving sprocket is mounted on the power output shaft. The pickup driving sprocket and the pickup driven sprocket are connected by the pickup chain.

[0017] Preferably, it also includes a netting mechanism, which is located on the front compartment above the bundling area.

[0018] Preferably, the netting mechanism includes a net-laying roller, an active net-feeding roller, a driven net-feeding roller, an active net-feeding sprocket, a driven net-feeding sprocket, a net-feeding transmission chain, a brake wheel, an electromagnetic brake device, a net-breaking structure knife, and a netting motor. A net-laying roller is rotatably mounted on the top of the front compartment. A driven net-feeding roller and an active net-feeding roller are rotatably mounted below the net-laying roller. A net-breaking structure knife is located below the driven net-feeding roller. A netting motor is fixedly mounted on the side wall of the front compartment. An active net-feeding sprocket is located at the output end of the netting motor. A driven net-feeding sprocket is mounted at the end of the active net-feeding roller. The active net-feeding sprocket and the driven net-feeding sprocket are connected by a net-feeding transmission chain. A brake wheel is mounted at the end of the active net-feeding roller. An electromagnetic brake device is fixedly mounted on the side wall of the front compartment and connected to the brake wheel to control the brake wheel to stop suddenly.

[0019] This utility model has the following beneficial effects:

[0020] 1. The symmetrical arrangement of the double-sided sprocket drive mechanism of this utility model enables the power to be evenly distributed to the two drive shafts, eliminating the torque imbalance problem of single-sided drive, significantly extending the service life of the chain and sprocket. At the same time, the symmetrical drive system has a stronger buffering capacity for instantaneous impact loads, such as foreign object jamming or sudden changes in material density. The two-sided chains can share the overload stress, reducing the risk of tooth skipping or chain breakage, and reducing the load on the tensioner.

[0021] 2. This utility model ensures the consistency of the actions of the picking device, roller and netting mechanism and other actuators, and avoids uneven material compression or loose binding caused by asynchronous movement on both sides;

[0022] 3. The mesh-laying mechanism of this utility model can automatically cut the mesh with a knife when the front compartment is flipped, which improves work efficiency and is suitable for widespread use. Attached Figure Description

[0023] Figure 1 This is a 3D view of a double-sided chain-driven baler;

[0024] Figure 2 This is a front view of a double-chain driven baler;

[0025] Figure 3This is a side view of a double-chain driven baler;

[0026] Figure 4 yes Figure 2 AA cross-section view;

[0027] Figure 5 This is a schematic diagram of a double-sided chain-driven baler;

[0028] Figure 6 This is a diagram showing the usage status of a double-sided chain-driven baler.

[0029] In the diagram, 1-rear compartment, 2-front compartment, 3-hinged plate, 4-suspension frame, 5-tilting cylinder, 6-locking hook, 7-locking hook mounting shaft, 8-traveling wheel, 9-pickup device, 10-transmission gearbox, 11-power output shaft, 12-roller, 13-sprocket drive mechanism, 14-first hinged roller, 15-second hinged roller, 16-locking shaft, 17-bundling area, 18-netting mechanism;

[0030] 91-Collector mounting bracket, 92-Grass-collecting roller, 93-Collector driven sprocket, 94-Collector driving sprocket, 95-Collector chain;

[0031] 131-Drum sprocket, 132-Drive sprocket, 133-First chain, 134-Second chain, 135-Chain tensioning mechanism, 136-Drive chain, 137-Drive sprocket;

[0032] 180-Network laying motor, 181-Network spreading roller, 182-Active net feeding roller, 183-Driven net feeding roller, 184-Active net feeding sprocket, 185-Driven net feeding sprocket, 186-Net feeding transmission chain, 187-Brake wheel, 188-Electromagnetic brake device, 189-Knife for net breaking structure. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0034] The connections mentioned in this utility model are divided into fixed connections and detachable connections. Fixed connections, also known as non-detachable connections, include but are not limited to conventional fixed connection methods such as folded connections, riveted connections, adhesive connections, and welded connections. Detachable connections include but are not limited to conventional disassembly methods such as threaded connections, snap-fit ​​connections, pin connections, and hinged connections. When a specific connection method is not explicitly defined, it is assumed that at least one existing connection method can always be found to achieve the function, and those skilled in the art can choose according to their needs. For example, a welded connection can be chosen for fixed connections, and a hinged connection can be chosen for detachable connections.

[0035] Specific implementation method one: Combining Figures 1-6 This embodiment describes a double-sided chain-driven baler, comprising a front chamber 2, a rear chamber 1, a hinge plate 3, a suspension frame 4, a tilting cylinder 5, a locking hook 6, a locking hook mounting shaft 7, traveling wheels 8, a pickup 9, a transmission gearbox 10, a power output shaft 11, rollers 12, a sprocket transmission mechanism 13, a first hinged roller 14, and a second hinged roller 15. The left and right sides above the front chamber 2 are hinged to the hinge plate 3 via the first hinged roller 14, and the left and right sides above the rear chamber 1 are hinged to the hinge plate 3 via the second hinged roller 15. Locking hooks 6 are rotatably mounted on the left and right side walls of the rear chamber 1 via the locking hook mounting shaft 7, with one end of the locking hook 6... The locking shaft 16 is clamped to the front compartment 2. The other end of the locking hook 6 is hinged to one end of the tilting cylinder 5. The other end of the tilting cylinder 5 is hinged to the side wall of the front compartment 2. The front compartment 2 and the rear compartment 1 are connected front and rear. Multiple rollers 12 are rotatably installed in the circumference of the front compartment 2 and the rear compartment 1. The multiple rollers 12 surround a bundling area 17. The bottom of the front compartment 2 is equipped with a walking wheel 8. The pickup 9 is rotatably installed below the front compartment 2. The suspension frame 4 is installed in the front compartment 2 and a transmission gearbox 10 is installed on it. The left and right ends of the transmission gearbox 10 are connected to the power output shafts 11. The power output shafts 11 at both ends are connected to the multiple rollers 12 respectively through the sprocket transmission mechanism 13.

[0036] The pickup 9 includes a pickup mounting frame 91, a grass-picking roller 92, a pickup driven sprocket 93, a pickup driving sprocket 94, and a pickup chain 95. The pickup mounting frame 91 is rotatably mounted below the front compartment 2 via a roller 12. The grass-picking roller 92 is rotatably mounted on the pickup mounting frame 91. The pickup driven sprocket 93 is mounted at the end of the grass-picking roller 92. The pickup driving sprocket 94 is mounted on the power output shaft 11. The pickup driving sprocket 94 and the pickup driven sprocket 93 are connected by the pickup chain 95. The grass-picking roller 92 has multiple spring teeth.

[0037] It also includes a netting mechanism 18, which is located on the front compartment 2 above the bundling area 17.

[0038] During operation, the double-chain driven baler of this embodiment is mounted on an agricultural tractor via a suspension frame 4. The agricultural tractor has a power output device, such as an electric motor, which inputs power to the transmission gearbox 10 via a transmission shaft. The transmission gearbox 10 then transmits power to the power output shaft 11. The power output shaft 11 transmits power to the pickup 9 and the roller 12 via a sprocket transmission mechanism 13, causing the pickup roller 92 and the roller 12 to rotate. The pickup roller 92 picks up the grass, and within the baling area 17, the rotation of the roller 12 drives the baled grass to rotate and compact. The netting mechanism 18 wraps around the rotated and compacted grass, thus achieving baling.

[0039] The sprocket drive mechanism 13 includes a roller sprocket 131, a drive sprocket 132, a first chain 133, a second chain 134, and a chain tensioning mechanism 135. Both ends of the roller 12, the first hinged roller 14, and the second hinged roller 15 are respectively equipped with roller sprockets 131. The roller 12 installed in the rear compartment 1 has its end connected to the roller sprocket 131 on the first hinged roller 14 via the first chain 133. The roller 12 installed in the front compartment 2 has its end connected to the roller sprocket 131 on the second hinged roller 15 via the second chain 134. The drive sprocket 132 and the first chain 133 are each equipped with a chain tensioning mechanism 135. The end of the power output shaft 11 is equipped with a drive sprocket 132, which meshes with the first chain 133. Both ends of the first hinged roller 14 and the second hinged roller 15 are also respectively equipped with drive sprockets 137 connected via a drive chain 136.

[0040] The power output shaft 11 drives the drive sprocket 132 to rotate. The drive sprocket 132 drives the roller sprocket 131 on the roller 12 and the first hinged roller 14 located in the front compartment 2 to rotate via the first chain 133. The first hinged roller 14 drives the second hinged roller 15 to rotate via the transmission chain 136. At the same time as the second hinged roller 15 rotates, the roller sprocket 131 installed on the second hinged roller 15 and the roller sprocket 131 on the roller 12 located in the rear compartment 1 rotate via the second chain 134. Thus, one drive sprocket 132 simultaneously drives the roller 12, the first hinged roller 14 and the second hinged roller 15 on the front compartment 2 and the rear compartment 1 to rotate synchronously.

[0041] The chain tensioning mechanism 135 is a chain tensioning mechanism disclosed in the prior art, including a bolt adjustment frame and a tensioning wheel. The tensioning wheel is rotatably mounted on the side wall of the front compartment 2 or the rear compartment 1 through the bolt adjustment frame. The tension of the tensioning wheel can be adjusted by adjusting the bolts on the bolt adjustment frame.

[0042] The netting mechanism 18 includes a spreading roller 181, an active net feeding roller 182, a driven net feeding roller 183, a driving sprocket for net feeding 184, a driven sprocket for net feeding 185, a net feeding transmission chain 186, a brake wheel 187, an electromagnetic brake device 188, a net-breaking structure knife 189, and a netting motor 180. The spreading roller 181 is rotatably mounted on the top of the front chamber 2. The driven net feeding roller 183 and the active net feeding roller 182 are rotatably mounted sequentially below the spreading roller 181. A net-breaking structure knife 189 is located below the driven net feeding roller 183. The netting motor 180 is fixedly mounted on the side wall of the front chamber 2. The output end of the mesh motor 180 is equipped with a mesh feeding drive sprocket 184, and the end of the drive mesh feeding roller 182 is equipped with a mesh feeding driven sprocket 185. The mesh feeding drive sprocket 184 and the mesh feeding driven sprocket 185 are connected by a mesh feeding transmission chain 186. The end of the drive mesh feeding roller 182 is equipped with a brake wheel 187. An electromagnetic brake device 188 is fixedly installed on the side wall of the front compartment 2. The electromagnetic brake device 188 is connected to the brake wheel 187 and controls the brake wheel 187 to stop suddenly. The electromagnetic brake device 188 is an electromagnetic brake device mechanism disclosed in the prior art, and the friction of the brake wheel 187 is controlled by an electromagnetic switch to stop the brake wheel 187 suddenly.

[0043] After one round of bundling, the tilting cylinder 5 extends, pressing down one end of the locking hook 6. Due to the lever installation principle of the locking hook mounting shaft 7, the other end of the locking hook 6 rises, causing the end hooked to lock the locking shaft 16 to disengage from the locking shaft 16. Then, simultaneously, under the lifting force provided by the tilting cylinder 5, the rear compartment 1 tilts upward with the hinge plate 3 connecting the first hinge roller 14 and the second hinge roller 15 as the hinge center, opening the front compartment 2 and the rear compartment 1. Figure 6 As shown, at the same time, due to the angle of the flip, the net covering the grass by the top netting mechanism 18, under the action of the angle, presses against the knife 189 of the netting structure, causing it to break, and the bundled grass falls to the ground from the opening.

[0044] The spreading roller 181 is fitted with a rolled-up baling net. The net passes between the active net feeding roller 182 and the driven net feeding roller 183 and enters the baling area 17. Under the dual action of the rotation of the roller 12 and the rotation of the active net feeding roller 182 driven by the netting motor 180, the net wraps around the outside of the straw. When the machine stops, the electromagnetic brake device 188 is activated, causing the brake wheel 187 to stop the active net feeding roller 182 from rotating. As a result, the net between the active net feeding roller 182 and the driven net feeding roller 183 stops being conveyed. The front compartment 2 flips upward, opening the front compartment 2 and the rear compartment 1. At the same time, the net wrapping the straw, under the action of the angle, presses against the net breaking structure knife 189, causing it to break. The baled straw falls to the ground from the opening.

[0045] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutation and combination. Therefore, this utility model will not describe the technical solutions after permutation and combination one by one, but it should be understood that the technical solutions after permutation and combination have been disclosed by this utility model.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bale press driven by a double-sided chain, characterized in that: It includes front bin (2), rear bin (1), hinged plate (3), suspension bracket (4), turnover oil cylinder (5), lock bin hook (6), lock bin hook mounting shaft (7), walking wheel (8), pickup (9), transmission gear box (10), power output shaft (11), roller (12), chain wheel transmission mechanism (13), first hinged roller (14) and second hinged roller (15), the left and right sides above the front bin (2) are hinged to the hinged plate (3) through the first hinged roller (14), the left and right sides above the rear bin (1) are hinged to the hinged plate (3) through the second hinged roller (15), the left and right side walls of the rear bin (1) are rotatably installed with the lock bin hook (6) through the lock bin hook mounting shaft (7), one end of the lock bin hook (6) is connected with the front bin (2) through the locking shaft (16), the other end of the lock bin hook (6) is hinged to one end of the turnover oil cylinder (5), the other end of the turnover oil cylinder (5) is hinged to the side wall of the front bin (2), the front bin (2) and the rear bin (1) are in communication, a plurality of rollers (12) are rotatably installed in the inside circumference of the front bin (2) and the rear bin (1), the plurality of rollers (12) are combined to form a bundling area (17), the walking wheel (8) is installed at the bottom of the front bin (2), the pickup (9) is rotatably installed below the front bin (2), the suspension bracket (4) is installed in the front bin (2), the transmission gear box (10) is installed on the suspension bracket (4), the power output shaft (11) is connected to the left and right ends of the transmission gear box (10), the power output shaft (11) at both ends is connected with the plurality of rollers (12) through the chain wheel transmission mechanism (13) respectively.

2. The dual side chain driven baler of claim 1, characterized in that: The chain wheel transmission mechanism (13) includes roller chain wheel (131), driving sprocket (132), first chain (133), second chain (134) and chain tensioning mechanism (135), the two ends of the roller (12), the first hinged roller (14) and the second hinged roller (15) are respectively installed with the roller chain wheel (131), the roller chain wheel (131) on the end of the roller (12) installed on the rear bin (1) and the first hinged roller (14) is connected through the first chain (133), the roller chain wheel (131) on the end of the roller (12) installed on the front bin (2) and the second hinged roller (15) is connected through the second chain (134), the driving sprocket (132) and the first chain (133) are provided with the chain tensioning mechanism (135), the driving sprocket (132) is installed at the end of the power output shaft (11), the driving sprocket (132) is meshed and connected with the first chain (133), the two ends of the first hinged roller (14) and the second hinged roller (15) are respectively installed with the transmission sprocket (137) connected through the transmission chain (136).

3. The dual side chain driven baler of claim 1, wherein: The pickup (9) comprises a pickup mounting frame (91), a grass pickup roller (92), a pickup driven sprocket (93), a pickup driving sprocket (94) and a pickup chain (95), the pickup mounting frame (91) is rotatably mounted below the front bin (2) through the roller (12), the grass pickup roller (92) is rotatably mounted on the pickup mounting frame (91), the grass pickup roller (92) is provided with the pickup driven sprocket (93) at the end, the pickup driving sprocket (94) is mounted on the power output shaft (11), and the pickup driving sprocket (94) and the pickup driven sprocket (93) are connected through the pickup chain (95).

4. The dual side chain driven baler of claim 1, characterized by: The net laying mechanism (18) is arranged on the front bin (2) above the bundling area (17).

5. The dual side chain driven baler of claim 4, characterized in that: The net laying mechanism (18) comprises a net spreading roller (181), a driving net conveying rubber roller (182), a driven net conveying rubber roller (183), a net conveying driving sprocket (184), a net conveying driven sprocket (185), a net conveying transmission chain (186), a brake wheel (187), an electromagnetic brake device (188), a net breaking structure knife (189) and a net laying motor (180), the net spreading roller (181) is rotatably mounted on the top of the front bin (2), the driven net conveying rubber roller (183) and the driving net conveying rubber roller (182) are sequentially rotatably mounted below the net spreading roller (181), the net breaking structure knife (189) is arranged below the driven net conveying rubber roller (183), the net laying motor (180) is fixedly installed on the side wall of the front bin (2), the net conveying driving sprocket (184) is arranged at the output end of the net laying motor (180), the net conveying driven sprocket (185) is installed at the end of the driving net conveying rubber roller (182), the net conveying driving sprocket (184) and the net conveying driven sprocket (185) are connected through the net conveying transmission chain (186), the brake wheel (187) is installed at the end of the driving net conveying rubber roller (182), the electromagnetic brake device (188) is fixedly installed on the side wall of the front bin (2), the electromagnetic brake device (188) is connected with the brake wheel (187), and the brake wheel (187) is controlled to stop suddenly.

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