A cutting device for a dual-axis rotary bar bundling machine

Abstract

This utility model relates to the field of agricultural machinery technology and discloses a cutting device for a dual-shaft rotary baler. It includes a rotating shaft and rotary blades located outside the rotating shaft. Multiple mounting mechanisms for fixing the rotary blades are arranged outside the rotating shaft, with these mechanisms staggered at angles. A fixing mechanism for locking the mounting mechanism is located on one side of each mounting mechanism. A quick-release mechanism for rapidly disassembling the mounting mechanism is located inside the fixing mechanism. This utility model uses a spring to apply elastic thrust to the connecting rod, causing two locking blocks to automatically reset and engage in slots. This secures the first and second mounting sleeves to the outside of the rotating shaft, thus fixing the rotary blades in place. A pusher block is provided so that pushing the pusher block causes the locking blocks to slide, allowing the second mounting sleeve to open quickly, facilitating the replacement of the rotary blades. This convenient operation shortens the maintenance time for blade replacement and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a cutting device for a dual-shaft swivel-blade square baler. Background Technology

[0002] Square balers are agricultural machinery. They are mainly used to crush and compress crop stalks (such as corn stalks and cotton stalks) by using the blades on the main shaft of the crushing device to cut, slice, collide, rub, and tear them at high speed. The cutting device in the square baler is one of the key components.

[0003] Traditional square bundling machine cutting devices typically use bolts to fix the blades. When replacing the blades, the protective cover needs to be removed and the bolts loosened one by one. After replacing the blades, the bolts need to be tightened again. In large-scale operations, frequent downtime for maintenance can significantly shorten the daily effective working time, resulting in reduced work efficiency. Therefore, those skilled in the art provide a cutting device for a dual-axis square bundling machine to solve the problems mentioned in the background. Utility Model Content

[0004] The purpose of this utility model is to provide a cutting device for a dual-axis rotary bar binding machine, which solves the problem in the prior art that when the blade needs to be replaced, the disassembly and fixing of the blade with bolts wastes a lot of time and leads to a decrease in work efficiency.

[0005] This utility model provides the following technical solution: a cutting device for a dual-axis swivel-blade square bundler, including a rotating shaft and a swivel blade located outside the rotating shaft. Multiple mounting mechanisms for fixing the swivel blade are provided outside the rotating shaft, and the multiple mounting mechanisms are arranged at staggered angles. A fixing mechanism for locking the mounting mechanism is provided on one side of the mounting mechanism, and a quick-release mechanism for quickly disassembling the mounting mechanism is provided inside the fixing mechanism.

[0006] As a preferred embodiment of the above technical solution, the installation mechanism includes a first mounting sleeve and a second mounting sleeve that are hinged to each other. The first mounting sleeve and the second mounting sleeve are movably sleeved on the outside of the rotating shaft. A plurality of the swivel blades are respectively fixedly installed on the outside of the first mounting sleeve and the second mounting sleeve. A positioning groove is provided on the outside of the rotating shaft. A positioning block is movably engaged inside the positioning groove. The positioning block is fixedly connected to the inner surface of the first mounting sleeve.

[0007] As a preferred embodiment of the above technical solution, the fixing mechanism includes a first mounting block and a second mounting block. The first mounting block and the second mounting block are respectively fixedly installed at the opening and closing positions of the first mounting sleeve and the second mounting sleeve. An inner groove is provided at the upper center of one side of the first mounting block. Two sliding blocks are slidably arranged inside the inner groove. An elastic connecting member is provided between the two sliding blocks. A locking block is fixedly connected to the upper side of each of the two sliding blocks.

[0008] As a preferred embodiment of the above technical solution, the lower end of the second mounting block has two slots. A fixing plate is fixedly installed on the side of the two slots away from the elastic connector. A rotating rod is rotatably connected to the two ends of the two fixing plates that are close to each other. The mounting block is movably engaged with the upper end of the fixing plate. A first guide groove is provided at the upper end of the two inner walls of the inner groove in the center width direction. A first guide block is slidably arranged inside each of the four first guide grooves. The four first guide blocks are fixedly connected to two sliding blocks respectively.

[0009] As a preferred embodiment of the above technical solution, the elastic connector includes a fixing block, which is fixedly installed at the center of the inner groove. Two connecting rods are slidably arranged inside the fixing block. One end of each connecting rod extends out of the fixing block and is fixedly connected to a sliding block. A spring is fixedly connected between the two connecting rods. A limiting groove is formed on the inner surface of the fixing block, and a limiting block is slidably arranged inside the limiting groove. The limiting block is fixedly installed on the connecting rod.

[0010] As a preferred embodiment of the above technical solution, the quick-release mechanism includes a push block, which is slidably disposed inside the slot. A protrusion is fixedly connected to one side of the push block, which penetrates through the second mounting block and extends outward. A second guide groove is provided on the upper side of the slot, and a second guide block is slidably disposed inside the second guide groove. The second guide block is fixedly installed on the upper side of the push block.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes the elastic thrust of a spring on the connecting rod to automatically reset the two locking blocks and lock them inside the slots, thereby fixing and locking the first and second mounting sleeves to the outside of the rotating shaft. This secures the blade for fixed installation. Furthermore, a push block is provided so that pushing the push block causes the locking blocks to slide, allowing the second mounting sleeve to open quickly, facilitating the replacement of the blade. This convenient operation shortens the maintenance time for blade replacement and improves work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the cutting device of a dual-axis rotary bar bundling machine; Figure 2This is a schematic diagram of the rotating shaft and mounting mechanism of the cutting device of a dual-axis rotary bar bundling machine; Figure 3 A cross-sectional schematic diagram of the fixing mechanism of the cutting device of a dual-axis rotary bar bundling machine; Figure 4 This is a schematic diagram of the structure of the first and second mounting blocks of the cutting device of a dual-axis rotary bar tie-down machine; Figure 5 This is a schematic diagram of the elastic connector and locking block of the cutting device of a dual-axis rotary bar bundling machine; Figure 6 A cross-sectional schematic diagram of the elastic connecting component of the cutting device of a dual-axis rotary bar bundling machine; Figure 7 A schematic diagram of the quick-release mechanism of the cutting device of a dual-axis rotary bar bundling machine; In the diagram: 1. Rotation axis; 2. Blade of the swivel knife; 3. Installation mechanism; 31. First mounting sleeve; 32. Second mounting sleeve; 33. Positioning groove; 34. Positioning block; 4. Fixing mechanism; 401. First mounting block; 402. Second mounting block; 403. Inner groove; 404. Sliding block; 405. Elastic connector; 4051. Fixing block; 4052. Connecting rod; 4053. Spring; 4054. Limiting groove; 4055. Limiting block; 406. Locking block; 407. Locking groove; 408. Fixing plate; 409. Rotating rod; 4011. First guide groove; 4012. First guide block; 5. Quick-release mechanism; 51. Push block; 52. Protrusion; 53. Second guide block. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Please see Figures 1-7 As shown, this utility model provides a technical solution: a cutting device for a dual-axis swivel-blade square bundler, including a rotating shaft 1 and a swivel blade 2 located outside the rotating shaft 1. Multiple mounting mechanisms 3 for fixing the swivel blade 2 are provided outside the rotating shaft 1, and the multiple mounting mechanisms 3 are arranged at staggered angles. A fixing mechanism 4 for locking and fixing the mounting mechanism 3 is provided on one side of the mounting mechanism 3. A quick-release mechanism 5 for quickly disassembling the mounting mechanism 3 is provided inside the fixing mechanism 4.

[0015] When the rotating shaft 1 rotates, the ejector blade 2 is installed on the outside of the rotating shaft 1 through the mounting mechanism 3, and the ejector blade 2 rotates with the rotating shaft 1, so that the ejector blade 2 cuts the material. The mounting mechanism 3 is locked and fixed to the outside of the rotating shaft 1 through the setting of the fixing mechanism 4, so as to prevent the ejector blade 2 from falling off when the rotating shaft 1 rotates. At the same time, the quick-release mechanism 5 is set inside the fixing mechanism 4 to facilitate the quick opening of the mounting mechanism 3, making the operation more convenient. In addition, the multiple mounting mechanisms 3 are staggered to make the multiple ejector blades 2 staggered. The angle of the staggered angle within the single shaft generates "local axial thrust" and the speed difference between the two shafts generates "overall conveying force". The combination of the two forms an "internal and external linkage" material flow path, so that the cut material will not accumulate in the single shaft or get stuck between the two shafts, improving the efficiency of cutting and conveying.

[0016] As one implementation method in this embodiment, please refer to Figure 1 and Figure 2 As shown, the mounting mechanism 3 includes a first mounting sleeve 31 and a second mounting sleeve 32 that are hinged to each other. The first mounting sleeve 31 and the second mounting sleeve 32 are movably sleeved on the outside of the rotating shaft 1. A plurality of swivel blades 2 are respectively fixedly installed on the outside of the first mounting sleeve 31 and the second mounting sleeve 32. A positioning groove 33 is provided on the outside of the rotating shaft 1. A positioning block 34 is movably engaged inside the positioning groove 33. The positioning block 34 is fixedly connected to the inner surface of the first mounting sleeve 31.

[0017] When the mounting mechanism 3 is installed on the outside of the rotating shaft 1, the positioning block 34 fixed on the inner surface of the second mounting sleeve 32 is inserted into the positioning groove 33 to fix the relative position between the first mounting sleeve 31 and the second mounting sleeve 32 and the rotating shaft 1, ensuring that the swivel blade 2 rotates synchronously with the rotating shaft 1 and avoiding the situation of stripping when the rotating shaft 1 rotates at high speed.

[0018] As one implementation method in this embodiment, please refer to Figures 3-5As shown, the fixing mechanism 4 includes a first mounting block 401 and a second mounting block 402. The first mounting block 401 and the second mounting block 402 are respectively fixedly installed at the opening and closing points of the first mounting sleeve 31 and the second mounting sleeve 32. An inner groove 403 is formed at the upper center of one side of the first mounting block 401. Two sliding blocks 404 are slidably arranged inside the inner groove 403. An elastic connector 405 is provided between the two sliding blocks 404. A locking block 406 is fixedly connected to the upper side of each of the two sliding blocks 404. Two locking blocks are formed at the lower end of the second mounting block 402. The groove 407 has a fixed plate 408 fixedly installed on the side away from the elastic connector 405 inside the two slots 407. The two fixed plates 408 are rotatably connected to the two ends close to each other. The locking block 406 is movably locked onto the upper end of the fixed plate 408. The inner groove 403 has a first guide groove 4011 at the upper end of the two ends of the center width direction of the two inner walls. The four first guide grooves 4011 are slidably provided with first guide blocks 4012 inside each of the four first guide grooves 4011. The four first guide blocks 4012 are fixedly connected to the two sliding blocks 404 respectively.

[0019] After the second mounting sleeve 32 is placed over the surface of the rotating shaft 1, the first mounting sleeve 31 is rotated through the hinge between the first mounting sleeve 31 and the second mounting sleeve 32, sealing the first mounting sleeve 31 and the second mounting sleeve 32. During the rotation of the first mounting sleeve 31, the second mounting block 402 presses against the locking block 406 due to the inclined side setting of the locking block 406, causing the two locking blocks 406 to slide towards each other. When the locking block 406 is completely submerged in the locking groove 407, the elastic thrust applied to the two sliding blocks 404 by the elastic connector 405 causes the two locking blocks 406 to quickly reset and lock onto the upper side of the fixing plate 408, thereby locking and fixing the first mounting sleeve 31 and the second mounting sleeve 32. During the sliding process, the sliding block 404 is guided by the sliding of the first guide block 4012 inside the first guide groove 4011, which prevents the sliding block 404 from sliding sideways when the second mounting block 402 squeezes and pushes the locking block 406 to slide, making the device more stable. At the same time, by setting a rotating rod 409 on one side of the fixed plate 408, the friction between the second mounting block 402 and the locking block 406 is reduced, making it more convenient and smooth to lock the first mounting sleeve 31 and the second mounting sleeve 32. This also prevents the surface of the locking block 406 from wearing out after long-term use, which would result in greater friction on the surface of the locking block 406 and make it difficult to smoothly lock the locking block 406 into the slot 407.

[0020] As one implementation method in this embodiment, please refer to Figure 5 and Figure 6As shown, the elastic connector 405 includes a fixing block 4051, which is fixedly installed at the center of the inner groove 403. Two connecting rods 4052 are slidably arranged inside the fixing block 4051. One end of each connecting rod 4052 extends out of the fixing block 4051 and is fixedly connected to two sliding blocks 404 respectively. A spring 4053 is fixedly connected between the two connecting rods 4052. A limiting groove 4054 is formed on the inner surface of the fixing block 4051. A limiting block 4055 is slidably arranged inside the limiting groove 4054 and is fixedly installed on the connecting rod 4052.

[0021] When the sliding block 404 slides, the elastic thrust applied to the two connecting rods 4052 by the spring 4053 causes the two connecting rods 4052 to slide to the side away from each other. After the locking block 406 is fully inserted into the locking groove 407, it quickly and automatically resets, and the first mounting sleeve 31 and the second mounting sleeve 32 are automatically locked and fixed, making the operation more convenient. During the sliding process of the connecting rod 4052, the position of the connecting rod 4052 is limited by the sliding of the limiting block 4055 inside the limiting groove 4054, so as to prevent the connecting rod 4052 from slipping.

[0022] As one implementation method in this embodiment, please refer to Figure 3 and Figure 5 As shown, the quick-release mechanism 5 includes a push block 51, which is slidably disposed inside the slot 407. A protrusion 52 is fixedly connected to one side of the push block 51. The protrusion 52 passes through the second mounting block 402 and extends outward. A second guide groove is provided on the upper side of the slot 407. A second guide block 53 is slidably disposed inside the second guide groove. The second guide block 53 is fixedly installed on the upper side of the push block 51.

[0023] When it is necessary to disassemble the first mounting sleeve 31 and the second mounting sleeve 32, the pusher 51 is slid in the slot 407 by pushing the protrusion 52, and the two adjacent locking blocks 406 are pushed to slide towards each other. When the locking block 406 slides to one side of the fixing plate 408, the mounting mechanism 3 is opened by the component of the oblique pushing force applied by the pusher 51 to the inclined surface of the locking block 406 and the weight of the first mounting sleeve 31 itself, making the operation more convenient.

[0024] Working principle: When it is necessary to install the swivel blade 2, the user inserts the positioning block 34, which is fixed on the inner surface of the second mounting sleeve 32, into the positioning groove 33, so that the second mounting sleeve 32 is fixed on the rotating shaft 1. Then, the first mounting sleeve 31 is rotated. As the first mounting sleeve 31 rotates, the locking block 406 will first contact the rotating rod 409. As the first mounting sleeve 31 continues to rotate, the rotating rod 409 will squeeze the locking block 406 and push the two sliding blocks 404 to slide towards each other. When the locking block 406 is completely submerged in the slot 407, the spring 4053 applies pressure to the two connecting rods 4052. The elastic thrust causes the two sliding blocks 404 to slide in opposite directions, thereby causing the locking block 406 to quickly reset and lock onto the upper side of the fixing plate 408, thus fixing the first mounting sleeve 31 and the second mounting sleeve 32 together. When it is necessary to disassemble the first mounting sleeve 31 and the second mounting sleeve 32, the push block 51 is slid in the slot 407 by pushing the protrusion 52, and the two adjacent locking blocks 406 are pushed to slide towards each other. When the locking block 406 slides to one side of the fixing plate 408, the mounting mechanism 3 is opened by the component of the oblique thrust applied by the push block 51 to the inclined surface of the locking block 406 and the weight of the first mounting sleeve 31 itself.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A cutting device for a dual-shaft rotary bar bundler, comprising a rotating shaft (1) and a rotary bar blade (2) located outside the rotating shaft (1), characterized in that: The rotating shaft (1) is provided with a plurality of mounting mechanisms (3) for fixing the blade (2) and the plurality of mounting mechanisms (3) are arranged at staggered angles. A fixing mechanism (4) for locking the mounting mechanism (3) is provided on one side of the mounting mechanism (3). A quick-release mechanism (5) for quickly disassembling the mounting mechanism (3) is provided inside the fixing mechanism (4).

2. The cutting device of a dual-axis rotary bar binding machine according to claim 1, characterized in that: The mounting mechanism (3) includes a first mounting sleeve (31) and a second mounting sleeve (32) that are hinged to each other. The first mounting sleeve (31) and the second mounting sleeve (32) are movably sleeved on the outside of the rotating shaft (1). A plurality of the swivel blades (2) are respectively fixedly installed on the outside of the first mounting sleeve (31) and the second mounting sleeve (32). A positioning groove (33) is provided on the outside of the rotating shaft (1). A positioning block (34) is movably engaged inside the positioning groove (33). The positioning block (34) is fixedly connected to the inner surface of the first mounting sleeve (31).

3. The cutting device of a dual-axis rotary bar binding machine according to claim 1, characterized in that: The fixing mechanism (4) includes a first mounting block (401) and a second mounting block (402). The first mounting block (401) and the second mounting block (402) are respectively fixedly installed at the opening and closing positions of the first mounting sleeve (31) and the second mounting sleeve (32). An inner groove (403) is provided at the upper center of one side of the first mounting block (401). Two sliding blocks (404) are slidably arranged inside the inner groove (403). An elastic connector (405) is provided between the two sliding blocks (404). A locking block (406) is fixedly connected to the upper side of each of the two sliding blocks (404).

4. The cutting device of a dual-axis rotary bar binding machine according to claim 3, characterized in that: The second mounting block (402) has two slots (407) at its lower end. A fixing plate (408) is fixedly installed on the side of the two slots (407) away from the elastic connector (405). A rotating rod (409) is rotatably connected to the two ends of the two fixing plates (408) that are close to each other. The locking block (406) is movably locked onto the upper end of the fixing plate (408). A first guide groove (4011) is provided at the upper end of the two inner walls of the inner groove (403) in the center width direction. A first guide block (4012) is slidably arranged inside the four first guide grooves (4011). The four first guide blocks (4012) are fixedly connected to two sliding blocks (404) respectively.

5. The cutting device of a dual-axis rotary bar binding machine according to claim 3, characterized in that: The elastic connector (405) includes a fixing block (4051), which is fixedly installed at the center of the inner groove (403). Two connecting rods (4052) are slidably arranged inside the fixing block (4051). One end of each connecting rod (4052) extending out of the fixing block (4051) is fixedly connected to two sliding blocks (404). A spring (4053) is fixedly connected between the two connecting rods (4052). A limiting groove (4054) is opened on the inner surface of the fixing block (4051). A limiting block (4055) is slidably arranged inside the limiting groove (4054). The limiting block (4055) is fixedly installed on the connecting rod (4052).

6. The cutting device of a dual-axis rotary bar binding machine according to claim 4, characterized in that: The quick-release mechanism (5) includes a push block (51), which is slidably disposed inside the slot (407). A protrusion (52) is fixedly connected to one side of the push block (51). The protrusion (52) passes through the second mounting block (402) and extends outward. A second guide groove is provided on the upper side of the slot (407). A second guide block (53) is slidably disposed inside the second guide groove. The second guide block (53) is fixedly installed on the upper side of the push block (51).

Images