Walking protection device and mini-tiller

Abstract

The walking protection device comprises a gear shifting rocker arm and a gear shifting rod, the gear shifting rocker arm is provided with a gear shifting mechanism and a separating mechanism, the separating mechanism is provided with a working clutch inhaul cable, the working clutch inhaul cable is provided with a working shifting fork shaft, the working shifting fork shaft is provided with a working shifting fork, and the working shifting fork is provided with a working clutch. And the working shifting fork is connected with the disconnecting mechanism. The walking protection device is designed, the working clutch is automatically separated when the walking gear is engaged, and the potential safety hazard that a working shaft continues to rotate when a traditional front-mounted mini-tiller walks is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery field especially relates to a walking protection device and micro tiller. BACKGROUND

[0002] The front micro tiller is widely used in agricultural production, and its main function is to realize soil tillage through the rotation of the working shaft. When the traditional front micro tiller switches between working and walking, the working clutch is usually used to control the start and stop of the working shaft. However, this design has certain safety hazards: when the operator hangs the micro tiller into the walking gear, if the working clutch is not disconnected, the working shaft will continue to rotate, which not only wastes energy, but also may cause equipment damage or personal injury.

[0003] To solve this problem, the operator usually needs to manually operate the working clutch to stop the rotation of the working shaft after hanging the micro tiller into the walking gear. This operation not only increases the burden of the operator, but also may cause dangerous situations due to operation errors in emergency situations. Therefore, there is an urgent need for a device that can automatically disconnect the working clutch when hanging into the walking gear to improve the safety and operation convenience of the front micro tiller. SUMMARY

[0004] The utility model aims at providing a walking protection device and micro tiller, by designing a walking protection device, automatically disconnecting the working clutch when hanging into the walking gear, solving the safety hazards of the working shaft continuing to rotate when the traditional front micro tiller walks. In order to achieve the above purpose, the specific technical scheme of the walking protection device and micro tiller of the utility model is as follows:

[0005] A walking protection device, comprising a shift rocker, the shift rocker is provided with a shift mechanism and a disconnecting mechanism, the disconnecting mechanism is provided with a working clutch cable, the working clutch cable is provided with a working shift fork shaft, the working shift fork shaft is provided with a working shift fork, and the working shift fork is connected with a disconnecting mechanism.

[0006] Compared with the prior art, the utility has the beneficial effects that: the utility is provided with a walking protection device, which automatically separates the working clutch when the gear is engaged, and solves the safety hazard of the working shaft continuing to rotate when the traditional front-mounted mini-cultivator is walking. The device uses the gear shift lever to drive the gear shift outer yoke shaft to move, and then uses the gear shift rocker arm to drive the working clutch cable and the gear shift mechanism, so that the gear shifting step and the working part power interruption are performed simultaneously. This design not only avoids equipment damage or personal injury caused by the operator forgetting to separate the clutch, but also simplifies the operation process and improves the use convenience. At the same time, the design effectively reduces the invalid rotation of the working shaft when walking, reduces energy consumption, and meets the concept of energy saving and environmental protection. In addition, the device has simple structure, reliable linkage, significantly improves the safety and practicality of the mini-cultivator, and has wide application value.

[0007] Further, one end of the gear shift rocker arm is provided with a driving shaft, a traction joint is arranged on the working clutch cable, and the other end of the gear shift rocker arm is movably connected with the traction joint, so that the swinging action of the gear shift rocker arm drives the gear shift mechanism and the separation mechanism simultaneously.

[0008] The beneficial effects of the above further technical scheme are that: by arranging the driving shaft at one end of the gear shift rocker arm and the traction joint on the working clutch cable, and movably connecting the traction joint with the other end of the gear shift rocker arm, the traction joint and the driving shaft are matched with each other, and the action on the gear shift rocker arm is transmitted to the gear shift mechanism and the separation mechanism respectively.

[0009] Further, the gear shift mechanism is provided with a gear shift yoke shaft, the gear shift yoke shaft is fixedly connected with a gear shift yoke, and the gear shift yoke is fixedly connected with a gear shift tooth.

[0010] The gear shift yoke shaft is provided with a driving groove, and the driving groove is matched with the driving shaft.

[0011] The beneficial effects of the above further technical scheme are that: by arranging the gear shift yoke shaft on the gear shift mechanism, the gear shift yoke shaft can switch gears; by movably connecting the gear shift yoke shaft with the gear shift yoke, the gear shift yoke can switch gears by sliding; by fixedly connecting the gear shift yoke with the gear shift tooth, the gear shift yoke can drive the gear shift tooth to mesh with different gear teeth in a sliding manner, so as to complete the switching of different gears; by arranging the driving groove on the gear shift yoke shaft and matching the driving groove with the driving shaft, the driving shaft moves in the driving groove on the gear shift yoke shaft to drive the gear shift yoke shaft to move, and the gear shifting action is completed.

[0012] Further, one end of the gear shift rocker arm is movably connected with the gear shift mechanism, and the other end is movably connected with the separation mechanism.

[0013] The beneficial effect of the further technical scheme is that: through the active connection of one end of the shift rocker arm with the shift mechanism and the active connection of the other end with the separation mechanism, when the shift rocker arm is working, one end is connected with the shift mechanism to make the shift mechanism complete the shift work, and the other end is connected with the separation mechanism to make it complete the work power disconnection work, thereby realizing the work and walking linkage shift.

[0014] Further, the disconnection mechanism comprises an elastic element and a sliding clutch tooth, the sliding clutch tooth is matched with a fixed clutch tooth, and the sliding clutch tooth is connected with the working shift fork.

[0015] The beneficial effect of the further technical scheme is that: through the elastic element provided in the disconnection mechanism, automatic return function can be realized after the disconnection work is completed; through the sliding clutch tooth provided in the elastic element, the sliding clutch tooth can move axially on the work transmission shaft, and through the action of the elastic element, the sliding clutch tooth can automatically return without external force; through the matching of the sliding clutch tooth with the fixed clutch tooth, the separation mechanism can realize power transmission and interruption; through the connection of the sliding clutch tooth with the working shift fork, the working shift fork in the separation mechanism will apply force to the sliding clutch tooth after being subjected to the action force of the working clutch cable, so that the sliding clutch tooth and the fixed clutch tooth are separated, thereby realizing the disconnection of the working power.

[0016] Further, the shift lever is provided with a shift outer shift fork shaft, the shift outer shift fork shaft is provided with a handrail seat, and the handrail seat is connected with the shift rocker arm.

[0017] The beneficial effect of the further technical scheme is that: through the shift outer shift fork shaft provided in the shift lever, the operator can transmit the shift action to the shift outer shift fork shaft after operating the shift lever to perform the next shift action; through the handrail seat provided in the shift outer shift fork shaft and connected with the shift rocker arm, the shift action on the shift outer shift fork shaft is transmitted to the shift rocker arm through the handrail seat, and the shift rocker arm transmits power to the shift mechanism and the separation mechanism.

[0018] A micro tiller comprises the walking protection device in any one of the further technical schemes.

[0019] Compared with the prior art, the beneficial effect of the utility model is that: through the walking protection device provided on the micro tiller, the safety hazard of the continuous rotation of the working shaft of the traditional front-mounted micro tiller when walking is solved. The device utilizes the linkage mechanism of the shift lever, the shift outer shift fork shaft, the shift rocker arm and the working clutch cable to realize the forced separation of the working clutch, not only avoids the damage of the equipment or personal injury caused by the operator forgetting to separate the clutch, but also simplifies the operation process and improves the convenience of the operation of the micro tiller. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 A schematic view of the walking protection device of the present application;

[0021] Fig. 2 A top view of the walking protection device of the present application;

[0022] Fig. 3 A perspective view of the walking protection device of the present application;

[0023] 1, shift lever; 2, shift outer yoke shaft; 3, handrail seat; 4, shift rocker arm; 5, shift mechanism; 6, separation mechanism; 7, working clutch cable; 8, working yoke shaft; 9, working yoke; 10, disconnect mechanism; 11, shift yoke shaft; 12, shift yoke; 13, shift tooth; 14, elastic element; 15, sliding clutch tooth; 16, fixed clutch tooth; 17, drive shaft; 18, traction joint; 19, drive groove. DETAILED DESCRIPTION

[0024] In order to better understand the purpose, structure and function of the present application, the following will be further described in detail in combination with the drawings.

[0025] Example 1

[0026] As Figs. 1-3The utility model discloses walking protection device, including shift rocker 4, through the setting of shift rocker 4, make through the action of a shift lever 1 through shift rocker 4 is divided into two actions, and can be carried out simultaneously, shift lever 1, through the setting of shift lever 1, make operating personnel can operate shift lever 1 to realize walking action, and can simultaneously interrupt the power of working part, guarantee the safety of operating personnel, reduce the failure rate of equipment, shift rocker 4 is equipped with shift mechanism 5 and separation mechanism 6, through setting up shift mechanism 5 and separation mechanism 6 on shift rocker 4 respectively, make shift mechanism 5 and separation mechanism 6 can simultaneously receive the action transmission of shift rocker 4, and respectively carry out the action of next step, separation mechanism 6 is equipped with working clutch cable 7, through installing working clutch cable 7 on separation mechanism 6, make separation mechanism 6 will separate work through working clutch cable 7 and transmit to next working step, working clutch cable 7 is equipped with working shift fork shaft 8, through setting up working shift fork shaft 8 on working clutch cable 7, make the action transmission of working clutch cable 7 on working shift fork shaft 8, again by working shift fork shaft 8 and transmit to next working step, working shift fork shaft 8 is equipped with working shift fork 9, through setting up working shift fork 9 on working shift fork shaft 8, make working shift fork 9 can carry out axial movement on working shift fork shaft 8, working shift fork 9 is connected with disconnect mechanism 10, through working shift fork 9 and disconnect mechanism 10 link to each other, make working shift fork 9 after receiving the force of working clutch cable 7, will force act on disconnect mechanism 10, make disconnect mechanism 10 will transmit to the power on working part and interrupt, when working shift fork 9 no longer exerts force on disconnect mechanism 10, disconnect mechanism 10 will automatically reset, thereby making the power transmission of working part continue.

[0027] The shift rocker 4 of the embodiment is provided with a driving shaft 17 at one end, the working clutch cable 7 is provided with a traction joint 18, the traction joint 18 is movably connected with the other end of the shift rocker 4, so that the swing action of the shift rocker 4 drives the shift mechanism 5 and the separation mechanism 6 at the same time; through the cooperation of the driving shaft 17 and the traction joint 18, the synchronous action of the shift mechanism 5 and the separation mechanism 6 is realized, and the working clutch is automatically separated when the walking gear is engaged. Avoid the dangerous situation caused by the operator forgetting to separate the working clutch, improve the safety and reliability of the equipment.

[0028] The shift mechanism 5 of the embodiment is provided with a shift fork shaft 11. The shift mechanism 5 is capable of performing a shift action through the shift fork shaft 11 by being provided with the shift fork shaft 11. The shift fork shaft 11 is fixedly connected with a shift fork 12. The shift fork 12 is fixedly connected with a shift gear 13. The shift fork 12 drives the shift gear 13 to engage different gears when the shift fork shaft 11 slides, thereby realizing different gear changes. The shift fork shaft 11 is provided with a driving groove 19. The driving groove 19 cooperates with a driving shaft 17. The shift fork shaft 11 is provided with the driving groove 19. The driving groove 19 cooperates with the driving shaft 17. The driving shaft 17 moves in the driving groove 19 of the shift fork shaft 11, thereby driving the shift fork shaft 11 to move and complete a corresponding shift action.

[0029] The shift rocker arm 4 in the embodiment is movably connected with the shift mechanism 5 at one end and movably connected with the separation mechanism 6 at the other end. The shift mechanism 5 and the separation mechanism 6 are respectively arranged on the shift rocker arm 4. The shift rocker arm 4 transmits an action to the shift mechanism 5 and the separation mechanism 6 after receiving the action. The shift mechanism 5 and the separation mechanism 6 respectively perform actions. The shift mechanism 5 performs a walking shift. The separation mechanism 6 interrupts a working part power. The design realizes a working and walking linkage shift and solves a safety hazard of a traditional front-mounted mini-cultivator in which a working shaft continues to rotate when walking.

[0030] The disconnect mechanism 10 in the embodiment comprises an elastic element 14 and a sliding clutch tooth 15. The elastic element 14 is arranged on the disconnect mechanism 10 to provide the return force for the disconnect mechanism 10. When the power of the working part is no longer needed, the disconnect mechanism 10 can be returned to continue the transmission of the power of the working part. The sliding clutch tooth 15 is arranged on the elastic element 14 to return by the elastic element 14 and can move axially along the working shaft to realize the transmission and interruption of the power of the working part. The sliding clutch tooth 15 cooperates with a fixed clutch tooth 16 and is connected with the working shift fork 9. The cooperation of the sliding clutch tooth 15 and the fixed clutch tooth 16 enables the sliding clutch tooth 15 to move axially along the working shaft after being disconnected to separate from the fixed clutch tooth 16, thereby completing the power interruption of the working part. The connection of the sliding clutch tooth 15 and the working shift fork 9 enables the working shift fork 9 to separate the sliding clutch tooth 15 from the fixed clutch tooth 16 when the force is applied to the sliding clutch tooth 15, thereby realizing the interruption of the power of the working part. When the working shift fork 9 is no longer subjected to the downward force, the sliding clutch tooth 15 will not be subjected to the separating force, and the elastic element 14 will return the sliding clutch tooth 15 to the cooperation with the fixed clutch tooth 16 to continue the transmission of the power of the working part.

[0031] The shift lever 1 in the embodiment is provided with a shift outer shift fork shaft 2. The power action of the shift lever 1 is transmitted to the shift outer shift fork shaft 2 when the operator performs the walking shift, so that the shift outer shift fork shaft 2 transmits the shift action to the next action step. The shift outer shift fork shaft 2 is provided with a handrail seat 3, and the handrail seat 3 is connected with a shift rocker arm 4. The action on the shift outer shift fork shaft 2 is transmitted to the shift rocker arm 4 through the handrail seat 3 and then transmitted to the next working step by the shift rocker arm 4.

[0032] The micro tiller in the embodiment comprises a walking protection device, when the micro tiller has completed the farming work, the operator needs to move the micro tiller, at this time, the working part needs to stop working, at this time, the operator only needs to engage the walking gear by the gear shift lever 1, and forcibly separate the working clutch, so that the safety of the operator is ensured; when the operator engages the walking gear by the gear shift lever 1, the gear shift lever 1 drives the gear shift outer fork shaft 2, the gear shift outer fork shaft 2 drives the gear shift rocker arm 4, one end of the gear shift rocker arm 4 drives the gear shift fork shaft 11, the gear shift fork 12 fixed on the gear shift fork shaft 11 drives the gear shift gear 13 to engage the walking gear. At the same time, the other end of the gear shift rocker arm 4 is fixed with the working clutch cable 7. The working clutch cable 7 pulls the working fork shaft 8, the working fork shaft 8 rotates the working fork 9, and the working fork 9 moves the sliding clutch gear 15 downward. In this way, the sliding clutch gear 15 is separated from the fixed clutch gear 16, so that the working transmission shaft stops working.

[0033] The utility model discloses a walking protection device is designed, and the working clutch is separated automatically when engaging the walking gear, and the safety hidden danger that the working shaft continues to rotate when walking of the traditional front micro tiller is solved. The device utilizes the gear shift lever 1 to drive the gear shift outer fork shaft 2 to act, and then the gear shift rocker arm 4 drives the working clutch cable 7 and the gear shift mechanism 5, so that the gear shift step and the working part power interruption are carried out at the same time. This design not only avoids the damage of equipment or personal injury caused by the operator forgetting to separate the clutch, but also simplifies the operation process and improves the use convenience. At the same time, the design effectively reduces the invalid rotation of the working shaft when walking, reduces the energy consumption, and meets the concept of energy saving and environmental protection. In addition, the device structure is simple, the linkage is reliable, the safety and practicality of the micro tiller are significantly improved.

[0034] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. A walk protection device comprising a shift rocker (4), a shift lever (1), characterized in that: The shift rocker arm (4) is provided with a shift mechanism (5) and a separation mechanism (6), the separation mechanism (6) is provided with a working clutch cable (7), the working clutch cable (7) is provided with a working shift fork shaft (8), the working shift fork shaft (8) is provided with a working shift fork (9), and the working shift fork (9) is connected with a disconnect mechanism (10).

2. The walk protection device of claim 1, wherein: One end of the shift rocker arm (4) is provided with a driving shaft (17), the working clutch cable (7) is provided with a traction joint (18), the traction joint (18) is movably connected with the other end of the shift rocker arm (4), so that the swing action of the shift rocker arm (4) drives the shift mechanism (5) and the separation mechanism (6) at the same time.

3. The walk protection device of claim 1, wherein: The shift mechanism (5) is provided with a shift fork shaft (11), the shift fork shaft (11) is fixedly connected with a shift fork (12), and the shift fork (12) is fixedly connected with a shift gear (13). The shift fork shaft (11) is provided with a driving groove (19), and the driving groove (19) is matched with the driving shaft (17).

4. The walk protection device of claim 1, wherein: One end of the shift rocker arm (4) is movably connected with the shift mechanism (5), and the other end is movably connected with the separation mechanism (6).

5. The walk protection device of claim 1, wherein: The disconnect mechanism (10) comprises an elastic element (14) and a sliding clutch tooth (15), the sliding clutch tooth (15) is matched with a fixed clutch tooth (16), and the sliding clutch tooth (15) is connected with the working shift fork (9).

6. The walk protection device of claim 1, wherein: The shift lever (1) is provided with a shift outer shift fork shaft (2), the shift outer shift fork shaft (2) is provided with a handrail seat (3), and the handrail seat (3) is connected with the shift rocker arm (4).

7. A mini-tiller characterized by comprising: The walking protection device comprises the shift rocker arm (4) and the shift lever (1).

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