Mower knife rest structure capable of being quickly disassembled and assembled

Abstract

The utility model relates to a hay mower knife rest structure with damping and rapid maintenance functions. In an existing technical scheme, a buffer block needs to be installed between each blade and an installation base for shock absorption, the structure is relatively complex, and the overall shock absorption effect of a tool rest is common. The anti-collision device comprises a tool rest and a wheel shaft, blades are arranged on the two sides of the tool rest, and the anti-collision device is characterized in that a damping connecting frame is arranged on the tool rest, an anti-collision sensor is arranged in the damping connecting frame, and the wheel shaft is connected with the damping connecting frame through a quick disassembly and assembly clamp spring. And the quick disassembly and assembly snap spring is an eccentric wheel locking mechanism. According to the utility model, the snap spring can be quickly disassembled and assembled by hands through the eccentric wheel structure, and the assembling and disassembling processes are simplified. The whole part of the tool rest is damped through cooperation of the snap spring and the bearing, vibration is reduced by 60%, and the damping effect is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to garden machinery technical field, concretely is a mower tool rest structure with shock attenuation and quick maintenance function. BACKGROUND

[0002] The application number CN202321948908.6 discloses a mower tool rest disc with a buffer structure, which is provided with a driving shaft, the bottom of the driving shaft is fixedly provided with a connecting disc, the edge of the connecting disc is fixedly provided with a mounting seat through bolts at an angle, the mounting seat is provided with a blade at the end away from the connecting disc through a movable shaft, and a spring is arranged at the rotating position of the blade and the mounting seat to reset the blade.

[0003] The above technical solution needs to install a buffer block between each blade and the mounting seat for shock attenuation, and the structure is relatively complex, the overall shock attenuation effect of the tool rest is general, and in addition, the existing tool rest has the problems of complex disassembly and assembly, and needs to be disassembled and assembled with a special wrench. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides a mower tool rest structure which can be quickly disassembled and assembled, is convenient to quickly disassemble and assemble, and has good shock attenuation effect.

[0005] Therefore, the utility model adopts the technical scheme that a mower tool rest structure which can be quickly disassembled and assembled comprises a tool rest and an axle, the two sides of the tool rest are provided with blades, and the tool rest is characterized in that a shock attenuation connecting frame is arranged on the tool rest, an anti-collision sensor is arranged in the shock attenuation connecting frame, and the axle is connected with the shock attenuation connecting frame through a quick disassembly and assembly clasp spring.

[0006] Preferably, the quick disassembly and assembly clasp spring is an eccentric wheel locking mechanism.

[0007] Preferably, the eccentric wheel locking mechanism comprises a belt pulley arranged at the upper end of the axle, a bearing and a clasp spring are arranged at the lower part of the axle, the clasp spring is annularly distributed, and the bearing is filled in the gap between the clasp springs.

[0008] Preferably, the shock attenuation connecting frame is a ring structure, and a hexagonal flange plate is sleeved on the outside of the shock attenuation connecting frame.

[0009] Preferably, a groove is formed in the annular surface at the bottom end of the shock attenuation connecting frame, and the anti-collision sensor is formed with a convex rib at the top end to match the groove.

[0010] Preferably, a tool rest upper flange is arranged at the upper end of the center of the tool rest, and a tool rest lower flange is arranged at the lower end of the center of the tool rest.

[0011] As preferred, the outer sleeve of the shock-absorbing connecting frame is hexagonal flange plate.

[0012] As preferred, the blade is a flail blade, which is fixed on the blade holder by fasteners.

[0013] The utility model discloses the beneficial effect lies in: through eccentric wheel structure realizes the quick dismounting of the card spring with bare hands, has simplified installation and dismounting process. The whole part of the blade holder is through the cooperation of the card spring and bearing and is damped, and vibration is reduced by 60%, and the damping effect is improved significantly. The shock-absorbing connecting frame is arranged on the blade holder and simultaneously plays the role of safety shield, can trigger shutdown quickly after collision to reach the set coefficient, and ensures the operation safety of system. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the exploded view of the utility model.

[0015] Fig. 2 It is the overall view of the utility model.

[0016] In the drawing, 1, hexagonal flange plate 2, stop nut 3, shock-absorbing connecting frame 4, card spring 5, fixed flange plate upper cover 6, blade holder 7, blade holder fixed upper flange 8, pulley 9, anti-collision sensor 10, blade holder fixed lower flange 11, bearing 12, fixed flange plate lower cover 13, wheel shaft 14, slotted nut 15, flail blade 16, carriage bolt 17, anti-wear ring 18, second flat washer 19, elastic washer 20, second fixing screw 21, flat washer 22, fixing screw. DETAILED DESCRIPTION

[0017] The utility model will be further explained in connection with the drawings and specific embodiment.

[0018] As Figs. 1-2 Shown in the utility model discloses a kind of quick dismounting mower blade holder structure, including blade holder 7 and wheel shaft 13, the both sides of blade holder are provided with blade, shock-absorbing connecting frame 3 is arranged on blade holder, the anti-collision sensor 9 is arranged in shock-absorbing connecting frame, wheel shaft 13 is connected with shock-absorbing connecting frame 3 by quick dismounting card spring 4, and quick dismounting card spring is eccentric wheel locking mechanism. Anti-collision sensor 9 is connected with master control system by CAN bus.

[0019] Specifically, eccentric wheel locking mechanism includes pulley 8 being arranged on the upper end of wheel shaft, the lower part of wheel shaft is provided with bearing 11 and card spring 4, the card spring 4 is annular distribution, and bearing is filled in the gap of card spring. The stiffness coefficient of card spring 4 is 180N / mm.

[0020] Specifically, shock-absorbing connecting frame 3 is annular structure, and the outer sleeve of shock-absorbing connecting frame is hexagonal flange plate 1. Hexagonal flange plate 1 is casted using 6061 aluminum alloy, and is provided with 6 groups of mounting holes.

[0021] Specifically, the shock-absorbing connecting frame 3 is provided with a groove on the bottom end annular surface, and the anti-collision sensor 9 is provided with a convex rib on the top end to match the groove. The upper end of the shock-absorbing connecting frame is further provided with a fixed flange upper cover 5, and the lower end of the shock-absorbing connecting frame is further provided with a fixed flange lower cover 12.

[0022] Specifically, the center of the tool holder 6 is provided with a tool holder fixed upper flange 7 on the upper end and a tool holder fixed lower flange 10 on the lower end. The tool holder fixed lower flange 10 is provided with a plurality of connecting holes on the center and the outer circumference, the center hole is connected through a flat washer 21 and a fixing screw 22, and the connecting holes on the outer circumference are connected and fixed on the tool holder 6 through a second flat washer 18, an elastic washer 19 and a second fixing screw 20.

[0023] Specifically, the shock-absorbing connecting frame 3 is provided with a hexagonal flange 1.

[0024] Specifically, the blade is a flail 15, and the tool holder is provided with connecting holes, and the flail 15 is connected and fastened on the tool holder through a carriage bolt 17, a slotted nut 14 and an anti-wear ring 17.

[0025] The utility model discloses a quick dismounting clamp spring and composite shock-absorbing structure, solve the traditional tool holder maintenance difficult, the problem of excessive vibration, especially suitable for large commercial mower.

[0026] It should be understood that the embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Claims

1. A mower blade holder structure which can be quickly assembled and disassembled, comprising a blade holder (6) and an axle (13), the blade holder having blades provided on both sides thereof, characterized in that The knife holder is provided with a shock-absorbing connecting frame (3), the shock-absorbing connecting frame is provided with an anti-collision sensor (9), and the wheel shaft (13) is connected with the shock-absorbing connecting frame (3) through a quick dismounting clamp spring (4).

2. The quick detachable mower deck structure according to claim 1, wherein The quick dismounting clamp spring is an eccentric wheel locking mechanism.

3. A mower deck structure according to claim 2, wherein The eccentric wheel locking mechanism comprises a belt pulley (8) arranged at the upper end of the wheel shaft, a bearing (11) and a clamp spring (4) arranged at the lower part of the wheel shaft, the clamp spring (4) is annularly distributed, and the bearing is filled in the gap of the clamp spring.

4. A mower deck structure according to claim 3, wherein The shock-absorbing connecting frame (3) is annular, and the shock-absorbing connecting frame is externally sleeved with a hexagonal flange (1).

5. A mower deck structure according to claim 4, wherein The shock-absorbing connecting frame (3) is provided with a groove on the bottom annular surface, and the anti-collision sensor (9) is provided with a convex rib at the top end matched with the groove.

6. A mower deck structure according to claim 5 wherein The center of the knife holder (6) is provided with a knife holder upper fixing flange (7) at the upper end and a knife holder lower fixing flange (10) at the lower end.

7. A mower deck structure according to claim 6, wherein The shock-absorbing connecting frame (3) is externally sleeved with a hexagonal flange (1).

8. A mower deck structure according to claim 7, wherein The blade is a flail (15) fixed on the knife holder through a fastener.

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