Cutter shaft for paddy field beating machine

Abstract

The utility model relates to the technical field of beating machines, in particular to a cutter shaft for a paddy field beating machine. Comprising a cutter shaft body; a mounting groove is formed in the surface of the cutter shaft body; a blade is connected in the mounting groove in a sliding manner; an annular groove is formed in the surface of the blade; through the arrangement of the cutting pieces, weeds wound on the surfaces of the blades can be cut by the cutting pieces, so that the weeds wound on the surfaces of the blades are cut off and are separated from the surfaces of the blades, and the amount of the weeds wound on the cutter shaft body is reduced; on one hand, the influence of weeds on the beater is reduced, and the working effect of the cutter shaft body is improved; meanwhile, workers do not need to clean weeds in person, the labor intensity of the workers is reduced, the working efficiency is improved, on the other hand, the influence of the weeds on abnormal abrasion of the cutter shaft body and the blades is reduced, the service life of the cutter shaft body and the blades is prolonged, and the maintenance and replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pulping machines, in particular to a knife shaft for a paddy field pulping machine. Background Art

[0002] During the rice planting process, rice straw will remain in the fields. If these straws are not effectively processed, they may affect the subsequent planting work and soil quality. Therefore, a pulper is needed to process the straw residues in the rice fields. The existing pulper will chop the straw with a knife, and then mix the chopped straw evenly into the soil during the movement of the machine. In this way, the straw can be effectively decomposed and utilized, which not only reduces the burning and open-air stacking in the field, thereby reducing the pollution to the environment, but also helps to improve soil quality, increase the organic matter content, and provide the nutrients needed for crop growth.

[0003] When the existing pulping machine chops the rice straw in the paddy field, if there are weeds in the paddy field, the stems and leaves of the weeds are often softer and more ductile than the rice straw; therefore, the rotating blade shaft is easily entangled by the soft stems and leaves of the weeds. On the one hand, the weeds entangled on the blade shaft will increase the resistance of the pulping machine, and the weeds are tightly entangled on the blade shaft, which will make it difficult for the staff to clean, thereby reducing the work efficiency; on the other hand, the weeds on the blade shaft will cause abnormal wear of the mechanical parts, increasing the cost of maintenance and replacement;

[0004] In view of this, in order to overcome the above technical problems, the utility model proposes a knife shaft for a paddy field beater, which solves the above technical problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the utility model proposes a knife shaft for a paddy field beater. The utility model arranges a split piece so that the split piece can cut the weeds entangled on the surface of the blade, so that the weeds entangled on the surface of the blade are cut off and detached from the surface of the blade, thereby reducing the amount of weed entanglement on the knife shaft body; on the one hand, it reduces the impact of weeds on the beater and improves the working effect of the knife shaft body; at the same time, there is no need for staff to clean the weeds personally, thereby reducing the labor intensity of staff and improving work efficiency; on the other hand, it reduces the impact of weeds on the abnormal wear of the knife shaft body and the blade, thereby increasing the service life of the knife shaft body and the blade and reducing the cost of maintenance and replacement.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a knife shaft for a paddy field beater, comprising a knife shaft body; a mounting groove is provided on the surface of the knife shaft body; a blade is slidably connected in the mounting groove; an annular groove is provided on the surface of the blade; a belt is slidably connected in the annular groove; a connecting groove is provided at one end of the belt away from the annular groove; a splitting piece is slidably connected in the connecting groove; the splitting piece is fixedly connected to the bottom of the connecting groove by a connecting spring; a driving motor is installed inside the knife shaft body; a transmission rod is slidably connected to the output shaft of the driving motor; a through groove is provided inside the blade; the transmission rod is slidably connected in the through groove; the transmission rod is used to drive the belt transmission.

[0007] Preferably, the side of the dividing piece away from the bottom of the connecting groove is arranged as a curved surface; and the belt is made of PTFE material.

[0008] Preferably, a positioning groove is provided on the groove wall of the installation groove; the transmission rod is slidably connected in the positioning groove; the transmission rod is fixedly connected to the groove bottom of the positioning groove by a positioning spring; and an electromagnet is embedded in the groove bottom of the positioning groove.

[0009] Preferably, a swivel is rotatably connected in the through slot; the swivel is slidably connected to the transmission rod.

[0010] Preferably, a slot wall of the installation slot is provided with a clamping slot; the clamping slot is directly opposite to the positioning slot; and the clamping slot and the positioning slot are distributed on both sides of the blade.

[0011] Preferably, the surface of the rotating ring is provided with teeth; the inner ring wall of the belt is provided with tooth grooves; and the teeth are meshingly connected with the tooth grooves.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides a splitter so that the splitter can cut the weeds entangled on the surface of the blade, so that the weeds entangled on the surface of the blade are cut off and separated from the surface of the blade, thereby reducing the amount of weeds entangled on the blade shaft body; on the one hand, it reduces the impact of weeds on the beater and improves the working effect of the blade shaft body; at the same time, it is unnecessary for the staff to clean the weeds personally, thereby reducing the labor intensity of the staff and improving the work efficiency; on the other hand, it reduces the impact of weeds on the abnormal wear of the blade shaft body and the blade, thereby increasing the service life of the blade shaft body and the blade and reducing the cost of repair and replacement;

[0014] 2. The utility model sets one end of the split piece as a curved surface. On the one hand, the split piece contacts the groove wall of the installation groove through the curved end, so that the installation groove blocks the curved end of the split piece and squeezes the split piece into the connecting groove, so that the split piece can squeeze the connecting spring into the connecting groove, thereby avoiding the problem of the split piece being blocked by the installation groove and breaking. On the other hand, the setting of the curved end of the split piece makes the contact between the split piece and the groove wall of the installation groove point contact, thereby reducing the friction between the split piece and the groove wall of the installation groove, reducing the wear of the split piece, and increasing the service life of the split piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model;

[0018] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 It is a structural schematic diagram of the transmission rod used in the utility model;

[0020] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0021] In the figure: 1. knife shaft body; 11. mounting groove; 12. blade; 13. annular groove; 14. through groove; 141. swivel; 142. teeth; 15. positioning groove; 151. positioning spring; 152. electromagnet; 16. slot; 2. belt; 21. connecting groove; 22. splitter; 23. connecting spring; 24. drive motor; 25. transmission rod; 26. tooth groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 5As shown, a knife shaft for a paddy field beater described in the utility model comprises a knife shaft body 1; a mounting groove 11 is provided on the surface of the knife shaft body 1; a blade 12 is slidably connected in the mounting groove 11; an annular groove 13 is provided on the surface of the blade 12; a belt 2 is slidably connected in the annular groove 13; a connecting groove 21 is provided at the end of the belt 2 away from the annular groove 13; a splitting piece 22 is slidably connected in the connecting groove 21; the splitting piece 22 is fixedly connected to the bottom of the connecting groove 21 by a connecting spring 23; a driving motor 24 is installed inside the knife shaft body 1; a transmission rod 25 is slidably connected to the output shaft of the driving motor 24; a through groove 14 is provided inside the blade 12; the transmission rod 25 is slidably connected in the through groove 14; the transmission rod 25 is used to drive the belt 2 for transmission.

[0024] As an implementation mode of the present utility model, the side of the split piece 22 away from the bottom of the connecting groove 21 is set as a curved surface; the belt 2 is made of PTFE material.

[0025] As an embodiment of the utility model, a positioning groove 15 is provided on the groove wall of the installation groove 11; the transmission rod 25 is slidably connected in the positioning groove 15; the transmission rod 25 is fixedly connected to the bottom of the positioning groove 15 by a positioning spring 151; and an electromagnet 152 is embedded in the bottom of the positioning groove 15.

[0026] As an implementation mode of the utility model, a swivel 141 is rotatably connected in the through slot 14 ; the swivel 141 is slidably connected to the transmission rod 25 .

[0027] As an implementation mode of the utility model, a slot wall of the installation slot 11 is provided with a clamping slot 16 ; the clamping slot 16 is directly opposite to the positioning slot 15 ; the clamping slot 16 and the positioning slot 15 are distributed on both sides of the blade 12 .

[0028] As an embodiment of the present utility model, the surface of the rotating ring 141 is provided with teeth 142; the inner ring wall of the belt 2 is provided with tooth grooves 26; the teeth 142 are meshed and connected with the tooth grooves 26;

[0029] When the existing pulping machine chops the rice straw in the paddy field, if there are weeds in the paddy field, the stems and leaves of the weeds are often softer and more ductile than the rice straw; therefore, the rotating blade shaft is easily entangled by the soft stems and leaves of the weeds. On the one hand, the weeds entangled on the blade shaft will increase the resistance of the pulping machine, and the weeds are tightly entangled on the blade shaft, which will make it difficult for the staff to clean, thereby reducing the work efficiency; on the other hand, the weeds on the blade shaft will cause abnormal wear of the mechanical parts, increasing the cost of maintenance and replacement;

[0030] During operation, before the user installs the blade shaft body 1 on the beater, the blade 12 needs to be installed in the installation slot 11. In the initial state, the transmission rod 25 is slidably connected with the output shaft of the driving motor 24, and the transmission rod 25 is supported by the positioning spring 151 and is located in the installation slot 11. Therefore, it is necessary to control the electromagnet 152 to be energized first, so that the electromagnet 152 can generate a magnetic adsorption force, so that the electromagnet 152 adsorbs the transmission rod 25 and moves it in the direction of the positioning slot 15 through the installation slot 11, so that the electromagnet 152 adsorbs the transmission rod 25 and squeezes the positioning spring 151 to enter the positioning slot 15, so that the transmission rod 25 will not block the installation slot 11, and then The blade 12 is inserted into the mounting groove 11 so that one end of the blade 12 close to the through groove 14 faces the groove bottom of the mounting groove 11. When the blade 12 is fully inserted into the groove bottom of the mounting groove 11, the through groove 14 of the blade 12 is directly opposite to the positioning groove 15. The control electromagnet 152 is powered off, so that the transmission rod 25 extends out of the positioning groove 15 and enters the through groove 14 under the push of the restoring force of the positioning spring 151. Since a swivel 141 is rotatably connected in the through groove 14, and the inner ring hole of the swivel 141 is rectangular, when the transmission rod 25 contacts the swivel 141, the transmission rod 25 is not aligned with the inner ring hole of the swivel 141. At this time, the drive motor 24 is controlled to rotate so that the drive motor 24 can The transmission rod 25 is driven to rotate, so that the transmission rod 25 and the rotating ring 141 are in rotational contact, and when the transmission rod 25 is rotated to match the inner ring hole of the rotating ring 141, the transmission rod 25 pushed by the restoring force of the positioning spring 151 can be inserted into the inner ring hole of the rotating ring 141. At this time, the rotating ring 141 and the transmission rod 25 are slidably connected until the transmission rod 25 passes over the rotating ring 141 to the slot 16. At this time, the transmission rod 25 enters the slot 16, so that the transmission rod 25 is in rotational contact with the inner wall of the slot 16. Due to the setting of the slot 16, the transmission rod 25 is supported by the inner wall of the slot 16, so that the transmission rod 25 stabilizes the blade 12 in the mounting slot 11; finally, The blade shaft body 1 is installed on the beater. When the beater drives the blade shaft body 1 to chop the straw in the paddy field, the weeds growing in the paddy field will be entangled on the blade 12 of the blade shaft body 1. When there are too many weeds entangled on the blade 12, the driving motor 24 is controlled to drive the transmission rod 25 to rotate, so that the transmission rod 25 can drive the rotating ring 141 to rotate, so that the rotating ring 141 can drive the teeth 142 on the surface to rotate, so that the teeth 142 can push the inner wall of the meshing tooth groove 26, and drive the belt 2 to rotate in the annular groove 13, so that when the belt 2 is rotating around, the belt 2 can drive the split piece 22 in the connecting groove 21 to rotate;Since the split piece 22 is pushed out of the connecting groove 21 by the restoring force of the connecting spring 23, the split piece 22 extending out of the connecting groove 21 can cut the weeds wrapped around the surface of the blade 12 during the rotation process, so that the weeds wrapped around the surface of the blade 12 are cut off by the split piece 22. When the split piece 22 rotates to enter the installation groove 11, the split piece 22 will be squeezed by the groove wall of the installation groove 11. Since the end of the split piece 22 away from the connecting groove 21 is set as a curved surface, on the one hand, the split piece 22 contacts the groove wall of the installation groove 11 through the curved surface end, so that the installation groove 11 blocks the curved surface end of the split piece 22 and squeezes the split piece 22 into the connecting groove 21, so that The split piece 22 can squeeze the connecting spring 23 into the connecting groove 21, avoiding the problem that the split piece 22 is blocked by the installation groove 11 and breaks. On the other hand, the arrangement of the curved end of the split piece 22 makes the contact between the split piece 22 and the groove wall of the installation groove 11 point contact, reducing the friction between the split piece 22 and the groove wall of the installation groove 11, reducing the wear of the split piece 22, and improving the service life of the split piece 22; and the belt 2 is made of PTFE material, so that when the blade 12 drives the belt 2 to chop the straw in the paddy field, the surface of the belt 2 is smooth, so that the friction between the belt 2 and the straw is small, reducing the friction damage caused by the straw to the belt 2, and improving the service life of the belt 2;

[0031] The utility model provides a dividing piece 22 so that the dividing piece 22 can cut the weeds entangled on the surface of the blade 12, so that the weeds entangled on the surface of the blade 12 are cut off and separated from the surface of the blade 12, thereby reducing the amount of weeds entangled on the blade shaft body 1; on the one hand, it reduces the influence of weeds on the beater and improves the working effect of the blade shaft body 1; at the same time, it is unnecessary for the staff to clean the weeds personally, thereby reducing the labor intensity of the staff and improving the work efficiency; on the other hand, it reduces the influence of weeds on the abnormal wear of the blade shaft body 1 and the blade 12, thereby increasing the service life of the blade shaft body 1 and the blade 12 and reducing the cost of repair and replacement.

[0032] The specific workflow is as follows:

[0033] During operation, before the user installs the blade shaft body 1 on the beater, the blade 12 needs to be installed in the installation slot 11. In the initial state, the transmission rod 25 is slidably connected with the output shaft of the driving motor 24, and the transmission rod 25 is supported by the positioning spring 151 and is located in the installation slot 11. Therefore, it is necessary to control the electromagnet 152 to be energized first, so that the electromagnet 152 can generate a magnetic adsorption force, so that the electromagnet 152 adsorbs the transmission rod 25 and moves it in the direction of the positioning slot 15 through the installation slot 11, so that the electromagnet 152 adsorbs the transmission rod 25 and squeezes the positioning spring 151 to enter the positioning slot 15, so that the transmission rod 25 will not block the installation slot 11, and then The blade 12 is inserted into the mounting groove 11 so that one end of the blade 12 close to the through groove 14 faces the groove bottom of the mounting groove 11. When the blade 12 is fully inserted into the groove bottom of the mounting groove 11, the through groove 14 of the blade 12 is directly opposite to the positioning groove 15. The control electromagnet 152 is powered off, so that the transmission rod 25 extends out of the positioning groove 15 and enters the through groove 14 under the push of the restoring force of the positioning spring 151. Since a swivel 141 is rotatably connected in the through groove 14, and the inner ring hole of the swivel 141 is rectangular, when the transmission rod 25 contacts the swivel 141, the transmission rod 25 is not aligned with the inner ring hole of the swivel 141. At this time, the drive motor 24 is controlled to rotate so that the drive motor 24 can The transmission rod 25 is driven to rotate, so that the transmission rod 25 and the rotating ring 141 are in rotational contact, and when the transmission rod 25 is rotated to match the inner ring hole of the rotating ring 141, the transmission rod 25 pushed by the restoring force of the positioning spring 151 can be inserted into the inner ring hole of the rotating ring 141. At this time, the rotating ring 141 and the transmission rod 25 are slidably connected until the transmission rod 25 passes over the rotating ring 141 to the slot 16. At this time, the transmission rod 25 enters the slot 16, so that the transmission rod 25 is in rotational contact with the inner wall of the slot 16. Due to the setting of the slot 16, the transmission rod 25 is supported by the inner wall of the slot 16, so that the transmission rod 25 stabilizes the blade 12 in the mounting slot 11; finally, The blade shaft body 1 is installed on the beater. When the beater drives the blade shaft body 1 to chop the straw in the paddy field, the weeds growing in the paddy field will be entangled on the blade 12 of the blade shaft body 1. When there are too many weeds entangled on the blade 12, the driving motor 24 is controlled to drive the transmission rod 25 to rotate, so that the transmission rod 25 can drive the rotating ring 141 to rotate, so that the rotating ring 141 can drive the teeth 142 on the surface to rotate, so that the teeth 142 can push the inner wall of the meshing tooth groove 26, and drive the belt 2 to rotate in the annular groove 13, so that when the belt 2 is rotating around, the belt 2 can drive the split piece 22 in the connecting groove 21 to rotate;Since the split piece 22 is pushed out of the connecting groove 21 by the restoring force of the connecting spring 23, the split piece 22 extending out of the connecting groove 21 can cut the weeds wrapped around the surface of the blade 12 during the rotation process, so that the weeds wrapped around the surface of the blade 12 are cut off by the split piece 22. When the split piece 22 rotates to enter the installation groove 11, the split piece 22 will be squeezed by the groove wall of the installation groove 11. Since the end of the split piece 22 away from the connecting groove 21 is set as a curved surface, on the one hand, the split piece 22 contacts the groove wall of the installation groove 11 through the curved surface end, so that the installation groove 11 blocks the curved surface end of the split piece 22 and squeezes the split piece 22 into the connecting groove 21, so that The split piece 22 can squeeze the connecting spring 23 into the connecting groove 21, avoiding the problem that the split piece 22 is blocked by the installation groove 11 and breaks. On the other hand, the setting of the curved end of the split piece 22 makes the contact between the split piece 22 and the groove wall of the installation groove 11 point contact, reducing the friction between the split piece 22 and the groove wall of the installation groove 11, reducing the wear of the split piece 22, and improving the service life of the split piece 22; and the belt 2 is made of PTFE material, so that when the blade 12 drives the belt 2 to chop the straw in the paddy field, the surface of the belt 2 is smooth, so that the friction between the belt 2 and the straw is small, reducing the friction damage caused by the straw to the belt 2, and improving the service life of the belt 2. ;

[0034] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A knife shaft for a paddy field beating machine, characterized in that: The invention comprises a knife shaft body (1); a mounting groove (11) is provided on the surface of the knife shaft body (1); a blade (12) is slidably connected in the mounting groove (11); an annular groove (13) is provided on the surface of the blade (12); a belt (2) is slidably connected in the annular groove (13); a connecting groove (21) is provided at one end of the belt (2) away from the annular groove (13); a splitting piece (22) is slidably connected in the connecting groove (21); the splitting piece (22) is fixedly connected to the bottom of the connecting groove (21) by a connecting spring (23); a driving motor (24) is installed inside the knife shaft body (1); a transmission rod (25) is slidably connected to the output shaft of the driving motor (24); a through groove (14) is provided inside the blade (12); the transmission rod (25) is slidably connected in the through groove (14); the transmission rod (25) is used to drive the belt (2) for transmission.

2. The blade shaft for a paddy field beater according to claim 1, characterized in that: The side of the dividing piece (22) away from the bottom of the connecting groove (21) is arranged as a curved surface; and the belt (2) is made of PTFE material.

3. The blade shaft for a paddy field beater according to claim 2, characterized in that: The groove wall of the installation groove (11) is provided with a positioning groove (15); the transmission rod (25) is slidably connected in the positioning groove (15); the transmission rod (25) and the groove bottom of the positioning groove (15) are fixedly connected via a positioning spring (151); and the groove bottom of the positioning groove (15) is inlaid with an electromagnet (152).

4. The blade shaft for a paddy field beater according to claim 3, characterized in that: A rotating ring (141) is rotatably connected in the through slot (14); the rotating ring (141) is slidably connected to the transmission rod (25).

5. The blade shaft for a paddy field beater according to claim 4, characterized in that: A slot wall of the installation slot (11) is provided with a clamping slot (16); the clamping slot (16) is directly opposite to the positioning slot (15); the clamping slot (16) and the positioning slot (15) are distributed on both sides of the blade (12).

6. The blade shaft for a paddy field beater according to claim 5, characterized in that: The surface of the rotating ring (141) is provided with teeth (142); the inner ring wall of the belt (2) is provided with tooth grooves (26); the teeth (142) are meshedly connected with the tooth grooves (26).

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