A rotary cultivator clutch device and rotary cultivator

Abstract

The application discloses a rotary cultivator clutch device, which comprises a frame provided with a power mechanism, a driving wheel connected with the power mechanism, a driven wheel connected with the driving wheel through a belt, a rotary cultivator wheel connected with the driven wheel, a clutch frame located outside the belt, one end of which is rotatably installed on the frame, and the other end of which is provided with a clutch wheel, the clutch wheel having a first state of tensioning the belt and a second state of releasing the tensioning of the belt, a clutch handle seat rotatably installed on the frame and connected with the clutch frame, and a driving mechanism for driving the clutch handle seat to rotate. The clutch handle seat is driven by the driving mechanism to rotate, and the clutch frame is driven by the clutch handle seat to rotate, and the clutch wheel is driven by the clutch frame to realize the tensioning or releasing of the belt, so that the driving wheel and the driven wheel are clutched or unclutched. The driving mechanism is driven to realize the clutching and unclutching of the rotary cultivator wheel and the power mechanism, and the automatic control of the clutch is realized, which is simple and convenient and improves the operation convenience.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural machinery technology, in particular, to a rotary cultivator clutch device and a rotary cultivator. BACKGROUND

[0002] As a common machine for agricultural machinery operation, the rotary cultivator can cut and bury roots in the soil, facilitate the operation of the seeding machine, provide a good seedbed for later seeding, improve the soil water storage and soil conservation capacity, eliminate part of the weeds, reduce pests and diseases, level the ground surface, and improve the standard of agricultural mechanization operation.

[0003] The clutch of the rotary cultivator (rotary cultivator wheel) is realized by manually operating a handle, which is not comfortable, and the operator is likely to forget to manually operate the handle to disconnect the rotary cultivator, resulting in power loss and increased fuel consumption. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a rotary cultivator clutch device which can automatically complete the clutching of the rotary cultivator wheel and the power mechanism.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] A rotary cultivator clutch device, comprising: a frame provided with a power mechanism; a driving wheel connected in transmission with the power mechanism; a driven wheel connected with the driving wheel through a belt, the driven wheel being transmission-connected with a rotary cultivator wheel; a clutch frame located outside the belt, one end of the clutch frame being rotatably installed on the frame, the other end of the clutch frame being installed with a clutch wheel, the clutch wheel having a first state of tensioning the belt to realize the transmission of the driving wheel and the driven wheel and a second state of releasing the tension of the belt; a clutch handle seat rotatably installed on the frame and connected in transmission with the clutch frame, the clutch handle seat being rotatable relative to the frame to drive the clutch frame to rotate, so as to switch the clutch wheel between the first state and the second state; and a driving mechanism for driving the clutch handle seat to rotate.

[0007] Further, the frame is provided with a mounting frame, and the clutch handle seat and the driving mechanism are both installed on the mounting frame.

[0008] Further, the mounting frame is provided with a rotating shaft corresponding to the rotation center of the clutch handle seat, the rotating shaft extending out of both sides of the mounting frame at both ends, and one end of the rotating shaft being fixedly connected with the clutch handle seat and the other end of the rotating shaft being connected in transmission with the driving mechanism.

[0009] Further, the other end of the rotating shaft is provided with a gear disc, the output shaft of the driving mechanism is connected with an output gear, and the gear disc is in meshing transmission with the output gear.

[0010] Further, the output gear peripheral wall has a toothed part and a non-toothed part, the toothed part is used for engaging with the toothed disc to realize transmission, and the non-toothed part is used for disengaging from the toothed disc.

[0011] Further, the transmission mechanism is further included, the rotating shaft is fixedly connected with a connecting rod, one end of the transmission mechanism is hingedly connected with one end of the connecting rod away from the rotating shaft, and the other end is hingedly connected with one end of the clutch frame away from the rotating center of the clutch frame.

[0012] Further, the transmission mechanism includes a first transmission arm, a second transmission arm and a tension spring, one end of the first transmission arm is hingedly connected with the clutch frame, one end of the second transmission arm is hingedly connected with the connecting rod, and the other end of the first transmission arm is connected with the other end of the second transmission arm through the tension spring.

[0013] Further, during rotation of the clutch wheel from the first state to the second state, the tension spring is first stretched and then contracted.

[0014] Further, the clutch handle seat has a first position corresponding to the clutch wheel in the first state and a second position corresponding to the clutch wheel in the second state, and the mounting frame is provided with stroke limiting structures corresponding to the first position and the second position, so that the clutch handle seat can only rotate between the first position and the second position.

[0015] The application further provides a rotary cultivator including the rotary cultivator clutch device.

[0016] The application has the following beneficial effects:

[0017] The clutch handle seat is driven to rotate by the driving mechanism, the clutch handle seat drives the clutch frame to rotate, the clutch frame drives the clutch wheel to realize tensioning or releasing the belt, so as to realize the clutching and unclutching of the driving wheel and the driven wheel, and the clutching and unclutching of the rotary cultivator blade wheel and the power mechanism are realized by the driving of the driving mechanism, so that the automatic control clutching is realized, and the operation convenience is improved.

[0018] In addition to the objects, features and advantages described above, the application has other objects, features and advantages. The application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings constituting a part of this application are used to provide further understanding of the application, the schematic embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of the rotary cultivator of the application;

[0021] Figure 2is a schematic view of the connection structure of the clutch handle seat and the driving mechanism;

[0022] Figure 3 is Figure 2 a schematic view of the exploded state structure;

[0023] Figure 4 is a schematic view of the connection structure of the clutch handle seat and the driving mechanism from another perspective;

[0024] Figure 5 is a schematic view of the clutch wheel in the second state;

[0025] Figure 6 is a schematic view of the clutch wheel in the first state.

[0026] Legend:

[0027] frame 100, power mechanism 110, mounting bracket 120, stroke limiting structure 121, limiting plate 122;

[0028] driving wheel 200;

[0029] driven wheel 300, belt 301, rotary tiller wheel 310;

[0030] clutch bracket 400, clutch wheel 410;

[0031] clutch handle seat 500, central hole 510, switch trigger plate 520, threaded shaft 530, handle 540;

[0032] driving mechanism 600, output gear 610;

[0033] pivot 700, toothed disc 710, connecting rod 720;

[0034] transmission mechanism 800, first transmission arm 810, second transmission arm 820, tension spring 830. DETAILED DESCRIPTION

[0035] It should be understood that the specific embodiments described herein are merely exemplary and not intended to limit the present application.

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0038] In addition, the descriptions involving "first", "second", etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0039] Please refer to Figure 1 and Figure 2 , the present application provides a rotary cultivator clutch device in one preferred embodiment, which comprises a frame 100, a driving wheel 200, a driven wheel 300, a clutch frame 400, a clutch handle seat 500 and a driving mechanism 600.

[0040] The frame 100 is provided with a power mechanism 110, which is usually an engine. The driving wheel 200 is connected with the power mechanism 110 in transmission to obtain rotary power, and the power mechanism 110 is connected with the track through a transmission system to realize the walking of the rotary cultivator.

[0041] The driven wheel 300 is connected with the driving wheel 200 through a belt 301, and the driven wheel 300 is connected with a rotary cultivator blade wheel 310 in transmission. The rotary cultivator blade wheel 310 is provided with rotary knives to realize rotary cultivation.

[0042] The clutch frame 400 is located outside the belt 301, and one end of the clutch frame 400 is rotatably installed on the frame 100, and the other end is provided with a clutch wheel 410. Referring to Figure 5 and Figure 6 , the clutch wheel 410 has a first state of tensioning the belt 301 to realize the transmission of the driving wheel 200 and the driven wheel 300 and a second state of releasing the tension of the belt 301; the belt 301 is arranged to be in a relaxed state when it is not tensioned, and cannot generate enough friction force with the driven wheel 300 and the driving wheel 200 to transmit power. Therefore, only when the clutch wheel 410 tension the belt 301, the driving wheel 200 and the driven wheel 300 will generate transmission, so that the driven wheel 300 rotates, thereby driving the rotary cultivator blade wheel 310 to rotate and work.

[0043] The clutch handle seat 500 is rotatably installed on the frame 100, and the clutch handle seat 500 is in transmission connection with the clutch frame 400. The rotation of the clutch handle seat 500 relative to the frame 100 can drive the rotation of the clutch frame 400, so as to switch the clutch wheel 410 between the first state and the second state. The driving mechanism 600 is used for driving the rotation of the clutch handle seat 500.

[0044] The present application drives the rotation of the clutch handle seat 500 through the driving mechanism 600, and the rotation of the clutch handle seat 500 drives the rotation of the clutch frame 400. The rotation of the clutch frame 400 drives the clutch wheel 410 to realize the tensioning or untensioning of the belt 301, so as to realize the clutching of the driving wheel 200 and the driven wheel 300. The driving mechanism 600 is driven to realize the clutching switching of the rotary tiller wheel and the power mechanism, so as to realize the automatic control of the clutching, which is simple, convenient and improves the operation convenience.

[0045] In addition, when the machine reverses in the field, the operator is easy to forget to disconnect the rotary tiller part, and the rotating knife roll is extremely unsafe. The rotary tiller clutch device provided by the present application can cooperate with the control system. When it is monitored that the rotary tiller reverses, the control system controls the driving mechanism 600 to drive the clutch wheel 410 to switch to the second state, so that the rotary tiller knife roll 310 cannot obtain power when reversing, reduces the oil consumption, improves the safety, and also reduces the possibility of damage of the rotary tiller knife roll 310.

[0046] In some embodiments of the present application, the frame 100 is provided with a mounting frame 120, and the clutch handle seat 500 and the driving mechanism 600 are both mounted on the mounting frame 120. The mounting frame 120 facilitates the mounting of the clutch handle seat 500 and the driving mechanism 600.

[0047] Referring to Figure 2 and Figure 3 In some embodiments of the present application, the mounting frame 120 is provided with a rotating shaft 700 corresponding to the rotation center of the clutch handle seat 500. The rotating shaft 700 extends out of both sides of the mounting frame 120 at both ends, and one end is fixedly connected with the clutch handle seat 500, and the other end is in transmission connection with the driving mechanism 600.

[0048] Specifically, in the present embodiment, the clutch handle seat 500 is provided with a center hole 510, and one end of the rotating shaft 700 is inserted into the center hole 510 and connected and fixed through a locking screw. The cross section profile of the rotating shaft 700 and the center hole 510 is a non-circular cross section, such as a polygon, so as to transmit the torque. Of course, in other embodiments, the rotating shaft 700 and the center hole 510 can also be connected through a connecting key to realize the transmission of the torque.

[0049] In some embodiments of the present application, the other end of the rotating shaft 700 is provided with a toothed disc 710, and the output shaft of the driving mechanism 600 is connected with an output gear 610. The toothed disc 710 is in meshing transmission with the output gear 610, so as to realize the power output of the driving mechanism 600.

[0050] With reference to Figure 5 When the clutch wheel 410 is in the first state, the belt 301 is tensioned to provide power to the driven wheel 300 and the rotary tiller wheel 310, and the rotary tiller wheel 310 will be subjected to a large resistance and vibration during operation. The vibration will be transmitted to the clutch wheel 410 and ultimately to the rotating shaft 700. In order to avoid the vibration transmitted to the driving mechanism 600 and its output shaft, the driving mechanism 600 and its output shaft will be subjected to a decline in service life. In some embodiments of the present application, the output gear 610 has a toothed portion and a non-toothed portion on the wall. The toothed portion is used to engage the toothed disc 710 to achieve transmission, and the non-toothed portion is used to disengage the toothed disc 710. When the output gear 610 drives the clutch wheel 410 to the first state, the toothed portion is disengaged from the toothed disc, and the non-toothed portion does not contact the toothed disc 710, so that the output gear 610 is disengaged from the toothed disc 710, avoiding the transmission of vibration to the output gear 610, the driving mechanism 600 and its output shaft. The driving mechanism 600 can be a motor.

[0051] In some embodiments of the present application, a transmission mechanism 800 is further included; the rotating shaft 700 is fixedly connected to a connecting rod 720, one end of the transmission mechanism 800 is hinged to one end of the connecting rod 720 away from the rotating shaft 700, and the other end is hinged to one end of the clutch frame 400 away from its rotating center. Thus, the connecting rod 720 swings with the rotating shaft 700 to drive the clutch frame 400 to swing through the transmission mechanism 800, realizing the state switching of the clutch wheel 410.

[0052] In specific embodiments of the present application, the transmission mechanism 800 includes a first transmission arm 810, a second transmission arm 820 and a tension spring 830; one end of the first transmission arm 810 is hinged to the clutch frame 400, one end of the second transmission arm 820 is hinged to the connecting rod 720, and the other end of the first transmission arm 810 is connected to the other end of the second transmission arm 820 through the tension spring 830. The tension spring 830 can change with the change of the distance between the first transmission arm 810 and the second transmission arm 820, and does not affect the connection and power transmission of the first transmission arm 810 and the second transmission arm 820, which is a good power transmission link and improves the self-consistency of the structure; in addition, the tension spring 830 can also buffer the transmitted vibration to achieve the effect of vibration reduction. In order to realize mechanical limiting, the mounting frame 120 is provided with a limiting plate 122. When the clutch wheel 410 is in the first state, the connecting rod 720 abuts against the limiting plate 122, limiting the connecting rod 720 and the structure linked therewith, so that the clutch wheel 410 can stably be in the first state.

[0053] In further embodiments of the present application, the tension spring 830 is first stretched and then contracted during the rotation of the clutch wheel 410 from the first state to the second state, so that the tension spring 830 can prevent the clutch wheel 410 in the first state or the second state from changing state easily, and the clutch wheel 410 can be more stably kept in the first state or the second state.

[0054] Referring to Figure 4 In further embodiments of the present application, the clutch handle seat 500 has a first position corresponding to the clutch wheel 410 in the first state and a second position corresponding to the clutch wheel 410 in the second state, i.e. when the clutch handle seat 500 is rotated to the first position, the clutch wheel 410 is in the first state; when the clutch handle seat 500 is rotated to the second position, the clutch wheel 410 is in the second state. The mounting bracket 120 is provided with stroke limiting structures 121 corresponding to the first position and the second position, so that the clutch handle seat 500 can only be rotated between the first position and the second position; when the clutch handle seat 500 abuts against the stroke limiting structure 121 corresponding to the first position, the clutch handle seat 500 is in the first position, and when the clutch handle seat 500 abuts against the stroke limiting structure 121 corresponding to the second position, the clutch handle seat 500 is in the second position. The stroke limiting structure 121 limits the stroke of the clutch handle seat 500 and makes the clutch handle seat 500 and the clutch wheel 410 accurately reach the required positions. In combination with the action of the tension spring 830, the clutch handle seat 500 can be tightly abutted against the stroke limiting structure 121, so as to realize the position stability of the first position or the second position.

[0055] The stroke limiting structure 121 can be a limit switch, and the clutch handle seat 500 is provided with a switch trigger plate 520 for contacting the limit switch.

[0056] The end of the clutch handle seat 500 is provided with a threaded shaft 530, and the threaded shaft 530 can be installed with a handle 540, so that when the driving mechanism 600 is broken, the handle 540 can be installed to change the operation to manual operation.

[0057] The present application also provides a rotary cultivator comprising the rotary cultivator clutch device.

[0058] The above is only the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary cultivator clutching device, characterized in that The utility model relates to a rotary tiller, including: A rack (100) is equipped with a power mechanism (110); A driving wheel (200) is connected with the power mechanism (110) transmission; A driven wheel (300) is connected with the driving wheel (200) through a belt (301), and the driven wheel (300) is transmission connection has rotary tiller wheel (310); Clutch frame (400) is located the belt (301) outside, one end rotation is installed in the rack (100), and the other end is installed with clutch wheel (410), and the clutch wheel (410) has the first state of tensioning the belt (301) to realize the driving wheel (200) and the driven wheel (300) transmission and the second state of unzipping the belt (301) tensioning; Clutch handle seat (500) rotation is installed in the rack (100) and is connected with the clutch frame (400) transmission, and the clutch handle seat (500) relative rack (100) rotation can drive the clutch frame (400) rotation to realize the clutch wheel (410) switches between the first state and the second state; Driving mechanism (600) is used for driving the clutch handle seat (500) rotation; The rack (100) is equipped with mounting frame (120), and the clutch handle seat (500) and the driving mechanism (600) are all installed in the mounting frame (120);The mounting frame (120) is installed with a rotating shaft (700) corresponding to the rotation center of the clutch handle seat (500), and the rotating shaft (700) extends out the mounting frame (120) both sides, and one end is fixedly connected with the clutch handle seat (500), and the other end is connected with the driving mechanism (600) transmission;The other end of the rotating shaft (700) is installed with a gear disc (710), and the output shaft of the driving mechanism (600) is connected with an output gear (610), and the gear disc (710) is engaged with the output gear (610) transmission;The output gear (610) peripheral wall has toothed portion and toothless portion, and the toothed portion is used for engaging with the gear disc (710) and realizing transmission, and the toothless portion is used for being contacted with the gear disc (710) and being separated;Further including transmission mechanism (800);The rotating shaft (700) is fixedly connected with a connecting rod (720), and one end of the transmission mechanism (800) is hinged with the end of the connecting rod (720) away from the rotating shaft (700), and the other end is hinged with the end of the clutch frame (400) away from its rotation center;The transmission mechanism (800) includes first transmission arm (810), second transmission arm (820) and tension spring (830);One end of the first transmission arm (810) is hinged with the clutch frame (400), one end of the second transmission arm (820) is hinged with the connecting rod (720), and the other end of the first transmission arm (810) is connected with the other end of the second transmission arm (820) through the tension spring (830);During the rotation of the clutch wheel (410) from the first state to the second state, the tension spring (830) is first stretched and then contracted.

2. The rotary cultivator clutch apparatus of claim 1, wherein The clutch handle seat (500) has a first position corresponding to the clutch wheel (410) in the first state, a second position corresponding to the clutch wheel (410) in the second state, and the mounting frame (120) is provided with a stroke limiting structure (121) corresponding to the first position and the second position, so that the clutch handle seat (500) can only rotate between the first position and the second position.

3. A rotary cultivator, characterized in that The rotary cultivator clutch device comprises the mounting frame (120) and the clutch handle seat (500).

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