A coaxial reverse double toothed disc driven knotter

Abstract

The present invention provides a coaxial reverse double-toothed disc driven knotter, comprising a frame body I, a large toothed disc, a small toothed disc, a coaxial reverse constant speed driving mechanism II, a knife arm III, a buckle clamp biting mechanism IV, a rope clamp V, and a rope clamp driving mechanism VI. The coaxial reverse constant speed driving mechanism II can realize the coaxial reverse constant speed rotation of the small toothed disc and the large toothed disc, and the rope clamp driving mechanism VI is a right-handed worm drive, which improves the transmission reliability; the knotter frame is divided into a knotting nozzle mounting frame, a knotter main bracket and a split spindle hole housing, and is cast separately, which reduces the manufacturing difficulty and improves the interchangeability of the knotting nozzle; the main shaft holes of the knotter main bracket and the split spindle hole housing are stepped, connected by bolts, and are easy to disassemble and repair and used on different balers; the knotter knife arm is divided into a knife arm body and a rope stripping plate, and the gap is compensated by a gasket to ensure the stripping contact force and reliability. The present invention has the characteristics of reasonable structure, easy processing and assembly, low manufacturing cost, and reliable knotting.

Description

Technical Field

[0001] The invention relates to the technical field of crop straw or forage grass harvesting and baling, and in particular to a coaxial reverse double-toothed disc driven knotter. Background Art

[0002] Crop straw is an important by-product of agricultural production. It can be used as industrial raw materials and livestock feed, and can also be used for the development of new energy. However, the comprehensive utilization rate of crop straw is low, and a large amount of crop straw is burned, which pollutes the environment and causes waste of resources. Whether it is the comprehensive utilization of crop straw or the harvesting and baling of forage such as forage, the first thing to solve is the mechanized collection of materials. The knotter is the core component of the square grass baler. It is an integrated automatic device that uses ropes to tie knots to bundle materials. It has the characteristics of complex spatial structure, high manufacturing difficulty, and high assembly precision and reliability requirements.

[0003] Chinese patent 201510161254.6 invented a double-toothed disc driven knotter, which has the characteristics of reasonable structure, easy processing and assembly, and low manufacturing cost. However, since the working environment of the knotter is concentrated in the field or pasture, it is affected by dust, sand, solid foreign matter and mechanical vibration, which accelerates the wear of the key kinematic pairs of the knotter and fatigue of weak parts. After a certain period of use, the knotter will have failures such as knife arm disengagement and hook clamp biting single-strand rope, which reduces the knotting rate and reliability of the knotter. Summary of the invention

[0004] In view of the above technical problems, the purpose of the present invention is to provide a coaxial reverse double-toothed disc driven knotter, so that the knotter parts are more wear-resistant and fatigue-resistant, and the disassembly, maintenance and adjustment are more convenient, thereby further improving the movement accuracy and reliability of the knotter.

[0005] The technical solution of the present invention is: a coaxial reverse double-toothed disc driven knotter, comprising a frame body I, a large toothed disc, a small toothed disc, a knotter main shaft, a coaxial reverse constant speed drive mechanism II, a knife arm III, a buckle winding clamp biting mechanism IV, a rope clamp V and a rope clamp drive mechanism VI; the knotter main shaft is installed in the main shaft hole of the frame body I; the small toothed disc and the large toothed disc are coaxially installed at the two ends of the main shaft hole of the frame body I respectively; the small toothed disc is connected to the coaxial reverse constant speed drive mechanism II, and the coaxial reverse constant speed drive mechanism II includes a central drive external gear, an internal gear, a first planetary gear and a second planetary gear; the central drive external gear is connected to one end of the knotter main shaft, and the internal gear is coaxially installed with the main shaft hole of the frame body I. The first planetary gear and the second planetary gear are loosely sleeved on the protruding shaft of the small toothed disc, and the small toothed disc is coaxially loosely sleeved on the hub of the central driving external gear, and the internal gear, the second planetary gear, the first planetary gear and the central driving external gear are meshed in sequence to form a meshing transmission; the rope clamp V and the rope clamp driving mechanism VI are installed on one side of the frame body I, and the knife arm III and the buckle winding clamp biting mechanism IV are installed on the other side of the frame body I; the large toothed disc is in contact with the knife arm III, and the small toothed disc is in contact with the rope clamp driving mechanism VI; when the main shaft of the knotter rotates, the small toothed disc and the large toothed disc rotate in opposite directions at the same speed; the small toothed disc drives the rope clamp driving mechanism VI to make the rope clamp V work, and the large toothed disc drives the buckle winding clamp biting mechanism IV and the knife arm III to work.

[0006] In the above scheme, the frame body I is a split assembled frame body, including a knotter main bracket, a knotting nozzle mounting bracket and a split spindle hole shell; the knotting nozzle mounting bracket and the knotter main bracket are detachably connected, and the knotting nozzle axis hole on the knotting nozzle mounting bracket is coaxially installed with the knotting nozzle axis hole on the knotter main bracket; the knotter main bracket and the split spindle hole shell are detachably connected.

[0007] In the above scheme, the main shaft hole formed by the knotter main bracket and the split main shaft hole housing is a stepped shaft hole.

[0008] In the above scheme, the blade arm III is a split assembled blade arm, including a blade arm body and a rope release plate; a key slot is provided between the rope release plate and the lower part of the blade arm body, and the rope release plate can be removably installed in the key slot; the top surface of the rope release plate has a release groove, which forms an interference fit with the arc-shaped bottom surface of the knotting mouth.

[0009] Furthermore, the bottom surface of the rope release plate has a threaded hole, and the bolt passes through the bottom of the keyway of the blade arm body and is connected to the rope release plate; a number of gaskets are placed between the bottom of the rope release plate and the keyway.

[0010] In the above solution, the gear ratio of the internal gear, the second planetary gear, the first planetary gear and the central driving external gear is 4:1:1:2.

[0011] In the above solution, the internal gear is installed on the knotter main bracket through a connecting block.

[0012] In the above scheme, the knotting nozzle mounting frame and the knotter main bracket are fixed by positioning pins and bolts.

[0013] In the above scheme, the knotter main bracket and the split spindle hole housing are connected by bolts.

[0014] In the above scheme, the rope clamp V includes a rope clamping disc; the rope clamping disc driving mechanism VI includes a spiral bevel gear, a double-headed right-handed worm and a worm shaft; the two ends of the worm shaft are respectively installed with a double-headed right-handed worm and a rope clamping bevel gear, the spiral bevel gear is fixedly connected to the rope clamping disc through the rope clamping disc shaft, and the double-headed right-handed worm is meshed with the spiral bevel gear; the circumference of the small toothed disc is provided with a rope clamping drive incomplete bevel gear, and the rope clamping bevel gear is meshed with the rope clamping drive incomplete bevel gear. Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The coaxial reverse constant speed drive mechanism II of the present invention is a planetary gear train mechanism, which can make the small toothed disc and the large toothed disc coaxially rotate in opposite directions at a constant speed, so that the worm drive of the rope clamp drive mechanism VI is designed as a right-handed worm drive, which reduces the helix angle of the gear matched with the worm, reduces the bending strength requirement of the worm shaft, reduces the wear of the worm pair, and further improves the reliability of the transmission of the rope clamp drive mechanism VI.

[0016] 2. The knotting nozzle mounting frame and the knotter main bracket of the present invention are cast in parts. After being connected by positioning pins and bolts, the cylindrical cam on the knotting nozzle mounting frame can be precisely formed in one step without the need for secondary precision machining, thereby reducing the manufacturing difficulty and processing cost. After the knotting nozzle shaft hole and the cylindrical cam of the knotting nozzle mounting frame are worn, it is convenient to replace a new knotting nozzle mounting frame, which has high interchangeability.

[0017] 3. The main support of the knotter and the main shaft hole of the split main shaft hole housing of the present invention are connected by bolts to form an integral stepped shaft hole. When the knotter is installed on the baler and parts are damaged, it is convenient to remove the knotter frame from the baler for maintenance. At the same time, shaft sleeves with different apertures can be installed at both ends of the shaft hole to slide with the main shaft of the knotter, which is convenient for use on different balers.

[0018] 4. The advantage of the split assembled blade arm III design of the present invention is that when the release groove on the top surface of the rope release plate and the arc-shaped bottom surface of the knotting nozzle are worn to form a gap, the gap can be compensated by adding or reducing gaskets between the bottom surface of the rope release plate and the semicircular keyway on the bottom surface of the blade arm body to make them fit again and maintain a certain contact pressure, thereby overcoming the disadvantage that the blade arm may break due to repeated tapping on the blade arm to make it fit. When the rope release plate is worn too severely, the rope release plate can be directly replaced without replacing the blade arm, thereby improving the interchangeability of the blade arm part. Moreover, the blade arm body and the rope release plate are independently manufactured using different materials and heat treatment processes, ensuring that the blade arm has suitable bending strength and rigidity, and meets the wear resistance requirements of the rope release plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front isometric view of a coaxial reverse dual toothed disc drive knotter assembly according to one embodiment.

[0020] Figure 2 A reverse isometric view of a coaxial reverse double toothed disc drive knotter assembly for one embodiment.

[0021] Figure 3 The figure is a front view of the structure of a coaxial reverse constant speed drive mechanism II according to an embodiment.

[0022] Figure 4 It is a cross-sectional view of a coaxial reverse constant speed drive mechanism II according to an embodiment.

[0023] Figure 5 FIG. 6 is a schematic structural diagram of a rope clamp driving mechanism VI according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of a split assembled frame body I according to an embodiment.

[0025] Figure 7 The figure is a schematic diagram of the main support structure of a knotter according to an embodiment.

[0026] Figure 8 It is a schematic diagram of the structure of a knotting nozzle mounting frame according to an embodiment.

[0027] Fig. 9 The figure is a schematic diagram of a split spindle hole housing structure according to an embodiment.

[0028] Fig.10 Schematic diagram a of the axis hole of the split assembly frame body I of an embodiment.

[0029] Fig.11 FIG. 1 is a schematic diagram b of the axis hole of a split assembled frame body I according to an embodiment. FIG.

[0030] Fig.12 It is a schematic diagram of the axis hole angle of the split assembly frame I of an embodiment.

[0031] Fig.13 It is a schematic diagram of the structure of a split assembled knife arm III according to an embodiment.

[0032] Fig.14 It is a cross-sectional view of a split assembled knife arm III according to an embodiment.

[0033] In the figure, 1. main bracket of knotter; 101. main shaft hole of knotter; 102. main bracket of knotter, knotting nozzle shaft hole; 103. rope clamping disk shaft hole; 104. worm shaft hole; 105. positioning pin shaft hole; 2. large toothed disk; 3. small toothed disk; 4. internal gear; 5. knife arm; 6. main shaft; 7. rope clamping disk; 8. hook; 9. knotting nozzle; 10. rope stripping plate; 11. knotting nozzle bevel gear; 12. helical gear; 13. double-headed right-handed worm; 14. worm shaft; 15. rope clamping bevel gear; 16. keyway; 17. center drive external gear; 18. first planetary gear; 19. Second planetary gear; 20. Knotting nozzle mounting frame; 2001. Knotting nozzle mounting frame knotting nozzle shaft hole; 2002. Cylindrical cam; 2003. Positioning pin shaft hole; 21. Connecting block; 22. Split spindle hole housing; 23. Positioning pin. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the specific implementation modes of the accompanying drawings, but the protection scope of the present invention is not limited thereto.

[0035] Figure 1 and Figure 2 The figure shows a preferred embodiment of the coaxial reverse double-toothed disc driven knotter of the present invention, wherein the coaxial reverse double-toothed disc driven knotter comprises a frame Ⅰ, a large toothed disc 2, a small toothed disc 3, a knotter main shaft 6, a coaxial reverse constant speed drive mechanism Ⅱ, a knife arm Ⅲ, a buckle winding clamp bite mechanism Ⅳ, a rope clamp Ⅴ and a rope clamp drive mechanism Ⅵ.

[0036] like Figure 1 and Figure 2 As shown, the knotter spindle 6 is installed in the spindle hole of the frame body I; the small toothed disc 3 and the large toothed disc 2 are coaxially installed at the two ends of the spindle hole of the frame body I respectively; the small toothed disc 3 is connected with the coaxial reverse constant speed driving mechanism II, and the small toothed disc 3 and the coaxial reverse constant speed driving mechanism II form a planetary gear train mechanism; the rope clamp V and the rope clamp driving mechanism VI are installed on one side of the frame body I, and the knife arm III and the buckle winding clamp biting mechanism IV are installed on the other side of the frame body I; the large toothed disc 2 is in contact with the knife arm III, and the small toothed disc 3 is in contact with the rope clamp driving mechanism VI; when the knotter spindle 6 rotates, the small toothed disc 3 and the large toothed disc 2 rotate in the same speed and coaxial opposite direction; the small toothed disc 3 drives the rope clamp driving mechanism VI to make the rope clamp V work to complete the rope clamping action, and the large toothed disc 2 drives the buckle winding clamp biting mechanism IV and the knife arm III to work in sequence to complete the buckle winding, hooking and releasing actions.

[0037] like Figure 1 and Figure 3 As shown, the planetary gear train mechanism includes a small gear plate 3 and a coaxial reverse constant speed drive mechanism II thereof, and the coaxial reverse constant speed drive mechanism II includes a central drive external gear 17, an internal gear 4, a first planetary gear 18 and a second planetary gear 19.

[0038] like Figure 3 and Figure 4 As shown, the central drive external gear 17 is connected to one end of the knotter main shaft 6, the internal gear 4 is coaxially installed with the main shaft hole of the frame body I, and is fixed to the knotter main bracket 1 through the connecting block 21. The first planetary gear 18 and the second planetary gear 19 are loosely sleeved on the protruding shaft of the small gear plate 3, and the small gear plate 3 is coaxially loosely sleeved on the hub of the central drive external gear 17. The internal gear 4, the second planetary gear 19, the first planetary gear 18 and the central drive external gear 17 are meshed in sequence to form a meshing transmission, and the gear ratio is preferably 4:1:1:2, which fully utilizes the knotter space while realizing equal-speed coaxial reverse transmission.

[0039] The rope clamp driving mechanism VI is fixedly connected to the rope clamp bevel gear 15, and an incomplete rope clamp driving bevel gear is arranged on the circumference of the small gear plate 3. The rope clamp bevel gear 15 is meshed with the incomplete rope clamp driving bevel gear, and the spiral bevel gear 12 is fixedly connected to the rope clamp through the rope clamp disc shaft.

[0040] When the knotter main shaft 6 rotates, the small toothed disc 3 and the large toothed disc 2 realize constant speed coaxial reverse rotation under the action of the coaxial reverse constant speed driving mechanism II. The small toothed disc 3 drives the rope clamp driving mechanism VI to make the rope clamp V complete the rope clamping action, and the large toothed disc 2 drives the buckle winding clamp mechanism IV and the knife arm III to complete the buckle winding, knotting and unbuckling actions in sequence.

[0041] like Figure 5 As shown, the rope clamp V comprises a rope clamping disc 7; the rope clamping disc driving mechanism VI comprises a double-headed right-handed worm 13 and a worm shaft 14 and a spiral bevel gear (12) with a 72° staggered axis worm transmission, the rope clamping bevel gear 15 and the double-headed right-handed worm 13 are respectively fixed to the two ends of the worm shaft 14, the spiral bevel gear 12 is fixed to the rope clamping disc 7 through the rope clamping disc shaft, and the double-headed right-handed worm 13 is meshed with the spiral bevel gear 12. The worm transmission is designed as a right-handed worm transmission, which reduces the helical angle of the gear matched with the worm, reduces the bending strength requirement of the worm shaft, reduces the wear of the worm pair, and improves the transmission reliability of the rope clamping device driving mechanism VI.

[0042] like Fig.10 , 11 and Fig.12As shown, the frame body I is a split assembly frame body, including the main shaft hole 101 of the knotter, the main bracket knotting nozzle hole 102 of the knotter, the rope clamping disk hole 103, the worm shaft hole 104 and the knotting nozzle mounting frame knotting nozzle shaft hole 2001, the rope clamping disk drive mechanism VI includes a 72° staggered axis worm transmission, the angle between the axis centerline a of the rope clamping disk hole 103 and the axis centerline b of the worm shaft hole 104 is 72°, and the worm is a double-headed right-handed worm 13. In order to ensure the working accuracy of the knotting nozzle on the knotter, the axis centerline c of the knotting nozzle axis hole 102 of the knotter main bracket and the axis centerline d of the knotting nozzle axis hole 2001 of the knotting nozzle mounting frame are coaxially arranged.

[0043] like Figure 7 , 8 and Fig. 9 As shown, the frame body I includes a knotter main support 1, a knotting nozzle mounting frame 20 and a split spindle hole housing 22. The knotting nozzle mounting frame 20 is provided with a cylindrical cam coaxial with the shaft hole, which can enable the rotating knotting nozzle hook 8 to open and close and complete the knotting clamping action. The knotting nozzle mounting frame 20 and the knotter main support 1 are fixed with bolts through a positioning pin 23, and the knotting nozzle shaft hole 2001 on the knotting nozzle mounting frame 20 is installed coaxially with the knotting nozzle shaft hole 101 on the knotter main support 1. The top end of the knotting nozzle 9 passes through the knotting nozzle shaft hole 2001 on the knotting nozzle mounting frame 20 and the knotting nozzle shaft hole 102 on the knotter main support 1 and is fixed to the knotting nozzle bevel gear 11, and the hook 8 is hinged to the knotting nozzle 9 through a pin shaft. The knotting nozzle mounting frame 20 and the knotter main bracket 1 are cast separately, which is beneficial to improve processing accuracy and reduce processing costs, while improving the interchangeability of the knotting nozzle mounting frame 20 after wear.

[0044] like Figure 6 and Fig. 9 As shown, the main shaft hole of the knotter main bracket 1 and the split main shaft hole housing 22 are connected by bolts to form an integral stepped shaft hole, and sleeves with different apertures can be installed at both ends of the shaft hole to slide with the knotter main shaft 6, so as to facilitate the disassembly and maintenance of the knotter frame and its use on different balers.

[0045] like Fig.13 As shown, the blade arm III is a split assembled blade arm, including a blade arm body 5 and a rope release plate 10, and the rope release plate 10 forms a flat key connection with the semicircular keyway provided on the bottom surface of the blade arm body 5. The top surface of the rope release plate 10 has a release groove, which forms an interference fit with the arc-shaped bottom surface of the knotting nozzle 9. The bottom surface of the rope release plate 10 has a threaded hole, and the bolt passes through the bottom of the semicircular keyway of the blade arm body 5 and is fixed to the rope release plate 10. When the release groove on the top surface of the rope release plate 10 and the arc-shaped bottom surface of the knotting nozzle 9 are worn to form a gap, the gap is compensated by adding or reducing gaskets between the bottom surface of the rope release plate 10 and the semicircular keyway on the bottom surface of the blade arm body 5 to ensure the release contact force.

[0046] The blade arm body 5 and the rope release plate 10 are independently manufactured using different materials and heat treatment processes, which ensures bending strength and rigidity while taking into account the requirements of release wear resistance, and can also improve the interchangeability of the blade arm body 5.

[0047] When the present invention is working, the main shaft 6 of the knotter forms a sliding fit with the sleeves at both ends of the main shaft hole 101 of the split assembly frame body I, and the main shaft 6 of the knotter simultaneously drives the central drive external gear 17 and the large toothed disc 2 to rotate. At the same time, the central drive external gear 17, the first planetary gear 18, the second planetary gear 19 and the internal gear 4 form a meshing transmission with each other, because the first planetary gear 18 and the second planetary gear 19 are loosely sleeved on the protruding shaft of the small toothed disc 3, under the action of the planetary gear train, the small toothed disc 3 and the large toothed disc 2 are rotated in the same speed and coaxially in the opposite direction. The rope clamping driving incomplete bevel gear on the small toothed disc 3 that controls the action of the rope clamp V is meshed with the rope clamping driven bevel gear 15 fixed to one end of the worm shaft 14, and the double-headed right-handed worm 13 fixed to the other end of the worm shaft 14 is meshed with the spiral bevel gear 12, driving the rope clamping disc 7 to rotate and completing the rope clamping action. At the same time, the incomplete bevel gear on the large toothed disc 2 meshes with the knotting mouth bevel gear 11, driving the knotting mouth 9 to rotate and perform the rope winding action. The knotting mouth mounting frame 20 is provided with a cylindrical cam 2002. Under the action of the cylindrical cam 2002, the hook 8 first opens its jaws to bite the rope and then closes, biting the rope between the hook 8 and the knotting mouth 9 to complete the hooking action. When the large toothed disc 2 rotates, the split assembled blade arm III is controlled to swing. The top surface of the rope release plate 10 on the split assembled blade arm III has a release groove, which increases and decreases the gasket, so that the rope release plate 10 forms an interference fit with the arc-shaped bottom surface of the knotting mouth 9. The split assembled blade arm III swings to force the rope buckle on the knotting mouth 9 to be pushed off, and finally a knot is formed.

[0048] The coaxial reverse constant speed drive mechanism II of the present invention is a planetary gear train mechanism, which can realize the coaxial reverse constant speed rotation of the small toothed disc 3 and the large toothed disc 2. At the same time, the rope clamp drive mechanism VI is a right-handed worm drive, which reduces the bending strength requirements of the worm shaft 14 and reduces the wear of the worm pair, thereby improving the transmission reliability. The knotter frame is divided into a knotting nozzle mounting frame 20, a knotter main bracket 1 and a split spindle hole housing 22, and is cast separately. The cam on the knotting nozzle mounting frame 20 can be precisely formed at one time, which reduces the manufacturing difficulty and processing cost and improves the interchangeability of the knotting nozzle. The spindle holes of the knotter main bracket 1 and the split spindle hole housing 22 are stepped and connected by bolts, which is convenient for the knotter frame to be disassembled and repaired and used on different balers. The knotter knife arm is divided into a knife arm body and a rope release plate 10. The rope release plate 10 and the knife arm 5 are connected by a flat key, and the gap is compensated by a gasket to ensure the release contact force and reliability. The present invention has the characteristics of reasonable structure, easy processing and assembly, low manufacturing cost, and reliable knotting.

[0049] The embodiments are preferred implementations of the present invention, but the present invention is not limited to the above-mentioned implementations. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention belong to the protection scope of the present invention.

Claims

1. A coaxial reverse double toothed disc driven knotter, characterized in that: It comprises a frame body I, a large toothed disc (2), a small toothed disc (3), a knotter main shaft (6), a coaxial reverse constant speed driving mechanism II, a knife arm III, a buckle winding clamp biting mechanism IV, a rope clamp V and a rope clamp driving mechanism VI; The knotter spindle (6) is mounted in the spindle hole of the frame body I; the small toothed disc (3) and the large toothed disc (2) are coaxially mounted at the two ends of the spindle hole of the frame body I respectively; the small toothed disc (3) is connected to a coaxial reverse constant speed drive mechanism II, and the coaxial reverse constant speed drive mechanism II comprises a central drive external gear (17), an internal gear (4), a first planetary gear (18) and a second planetary gear (19); the central drive external gear (17) is connected to one end of the knotter spindle (6), the internal gear (4) is coaxially mounted with the spindle hole of the frame body I, the first planetary gear (18) and the second planetary gear (19) are loosely mounted on the protruding shaft of the small toothed disc (3), the small toothed disc (3) is coaxially loosely mounted on the hub of the central drive external gear (17), and the internal gear (4), the second planetary gear (19), the first planetary gear (18) and the central drive external gear (17) are meshed in sequence to form meshing transmission; The rope clamp V and the rope clamp driving mechanism VI are mounted on one side of the frame body I, and the knife arm III and the buckle clamp biting mechanism IV are mounted on the other side of the frame body I; the large toothed disc (2) is in contact with the knife arm III, and the small toothed disc (3) is in contact with the rope clamp driving mechanism VI; When the knotter main shaft (6) rotates, the small toothed disc (3) and the large toothed disc (2) rotate coaxially and in opposite directions at the same speed; the small toothed disc (3) drives the rope clamp driving mechanism VI to make the rope clamp V work, and the large toothed disc (2) drives the buckle winding clamp biting mechanism IV and the knife arm III to work; The frame body I is a split assembly frame body, comprising a knotter main support (1), a knotting nozzle mounting frame (20) and a split spindle hole housing (22); The knotting nozzle mounting frame (20) and the knotter main support (1) are detachably connected, and the knotting nozzle axis hole (2001) of the knotting nozzle mounting frame is coaxially mounted with the knotting nozzle axis hole (102) of the knotter main support; The knotter main support (1) and the split spindle hole housing (22) are detachably connected; The blade arm III is a split assembly blade arm, comprising a blade arm body (5) and a rope release plate (10); The rope release plate (10) and the lower part of the blade arm body (5) are provided with a keyway, and the rope release plate (10) can be detachably installed in the keyway; the top surface of the rope release plate (10) is provided with a release groove, which forms an interference fit with the arc-shaped bottom surface of the knotting mouth (9).

2. The coaxial reverse double toothed disc driven knotter according to claim 1, characterized in that: The main shaft hole formed by the knotter main support (1) and the split main shaft hole housing (22) is a stepped shaft hole.

3. The coaxial reverse double toothed disc driven knotter according to claim 1, characterized in that: The bottom surface of the rope release plate (10) has a threaded hole, and a bolt passes through the bottom of the keyway of the blade arm body (5) to be connected to the rope release plate (10); a plurality of gaskets are placed between the bottom of the rope release plate (10) and the keyway.

4. The coaxial reverse double toothed disc driven knotter according to claim 1, characterized in that: The gear ratio of the internal gear (4), the second planetary gear (19), the first planetary gear (18) and the central driving external gear (17) is 4:1:1:

2.

5. The coaxial reverse double toothed disc driven knotter according to claim 1, characterized in that: The internal gear (4) is mounted on the knotter main bracket (1) via a connecting block (21).

6. The coaxial reverse double toothed disc driven knotter according to claim 1, characterized in that: The knotting nozzle mounting frame (20) and the knotter main support (1) are fixedly fastened with bolts via positioning pins (23).

7. The coaxial reverse double toothed disc driven knotter according to claim 1, characterized in that: The knotter main bracket (1) and the split spindle hole housing (22) are connected by bolts.

8. The coaxial reverse double toothed disc driven knotter according to claim 1, characterized in that: The rope clamp V comprises a rope clamping disc (7); the rope clamping disc driving mechanism VI comprises a spiral bevel gear (12), a double-headed right-handed worm (13) and a worm shaft (14); the two ends of the worm shaft (14) are respectively mounted with a double-headed right-handed worm (13) and a rope clamping bevel gear (15); the spiral bevel gear (12) and the rope clamping disc (7) are fixedly connected via the rope clamping disc shaft, and the double-headed right-handed worm (13) is meshed with the spiral bevel gear (12); an incomplete bevel gear for rope clamping drive is arranged on the circumference of the small toothed disc (3), and the rope clamping bevel gear (15) is meshed with the incomplete bevel gear for rope clamping drive.

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