Cutter shaft quick replacement structure and scarifier

Abstract

The invention provides a cutter shaft quick replacement structure and a scarifier, and relates to the technical field of garden equipment. The cutter shaft quick replacement structure comprises a driving base, a fixed base, a cutter shaft, a swing assembly and a lifting assembly. One end of the cutter shaft is inserted into the driving base, and the other end of the cutter shaft is lapped on the fixed base; one end of the swing assembly is pivoted to the fixed base, and the lifting assembly is installed at the other end of the swing assembly so that the lifting assembly can swing relative to the fixed base; and the locking piece on the lifting assembly can be close to or far away from the fixed base. The scarifier comprises the cutter shaft quick replacement structure. The technical effect that the cutter is convenient to replace is achieved.

Description

Technical Field

[0001] This invention relates to the field of garden equipment technology, and more specifically, to a quick-change cutter shaft structure and a soil loosening machine. Background Technology

[0002] Currently, there are many types of soil loosening machines on the market, mainly used for tilling, preparing, hoeing, and cultivating. They can reduce labor intensity and are very popular. Soil loosening machines have now become one of the essential agricultural machines for households. To improve soil quality and increase crop yield, it is necessary to loosen the soil regularly or before each crop sowing season. To improve the efficiency of soil loosening, agricultural soil loosening machines are now generally used.

[0003] A soil loosening and grass raking machine is a common garden tool, mainly used for loosening soil and raking grass. It usually has working heads such as soil loosening blades and grass raking blades. Depending on the work needs, you can choose to install soil loosening blades or grass raking blades. However, when installing or replacing blades, you need to use tools such as wrenches and screwdrivers to install the blades onto the main body, which is inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a quick-change cutter shaft structure and a soil loosening machine to alleviate the technical problem of inconvenient cutter replacement in the prior art.

[0005] In a first aspect, embodiments of the present invention provide a quick-change structure for a cutter shaft, including a drive base, a fixed base, a cutter shaft, a swing assembly, and an lifting assembly; One end of the cutter shaft is inserted into the drive base, and the other end rests on the fixed base; One end of the swing assembly is pivotally connected to the fixed base, and the lifting assembly is mounted on the other end of the swing assembly so that the lifting assembly can swing relative to the fixed base. The locking element on the lifting assembly can be installed near or away from the fixed base.

[0006] In conjunction with the first aspect, the present invention provides one possible implementation of the first aspect, wherein the swing assembly includes a swing shaft, a swing link, and a mounting base; The swing shaft is pivotally connected to the bottom of the fixed base, and the two ends of the swing shaft are connected to the swing connecting rods. The mounting base is fixedly installed on the end of the swing connecting rods away from the swing shaft. The lifting component is mounted on the mounting base, and the height of the mounting base is higher than the height of the cutter shaft mounted on the fixed base.

[0007] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the fixed base is provided with an avoidance channel, the end of the swing link away from the swing axis passes through the avoidance channel, and the swing link is able to swing within the avoidance channel.

[0008] In conjunction with the first aspect, the present invention provides one possible implementation of the first aspect, wherein the top of the fixed base is configured as an arc shape adapted to the swing of the mounting base.

[0009] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein a bearing seat is provided at the end of the cutter shaft away from the drive base, and a mounting groove for accommodating the bearing seat is provided on the fixed base; The clearance channel is located on the outside of the mounting slot.

[0010] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the above-mentioned lifting assembly includes a lifting seat, a return spring and the locking member; The mounting base has a stepped hole, with the smaller diameter end of the stepped hole close to the lifting base. The locking member is inserted into the stepped hole, and the end of the locking member protruding from the stepped hole is connected to the lifting base. The return spring is disposed in the stepped hole and is sleeved on the locking member.

[0011] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the mounting base has a stepped hole, the bearing seat has a locking hole corresponding to the stepped hole, and the locking member can be inserted into the locking hole under the action of the return spring.

[0012] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the mounting base is provided with a plurality of stepped holes, the fixed base is provided with a plurality of locking holes corresponding to the stepped holes, and the locking member can be inserted into the locking hole under the action of the return spring.

[0013] In conjunction with the first aspect, the present invention provides a possible implementation of the first aspect, wherein the locking member is a locking rod, one end of the locking rod has a locking head, the locking head abuts against the return spring, and the locking head can be inserted into the locking hole.

[0014] Secondly, embodiments of the present invention provide a soil loosening machine, including the aforementioned quick-change cutter shaft structure.

[0015] Beneficial effects: This invention provides a quick-change tool shaft structure, including a drive base, a fixed base, a tool shaft, a swing assembly, and a lifting assembly; one end of the tool shaft is inserted into the drive base, and the other end is mounted on the fixed base; one end of the swing assembly is pivotally connected to the fixed base, and the lifting assembly is mounted on the other end of the swing assembly so that the lifting assembly can swing relative to the fixed base; the locking member on the lifting assembly can be mounted close to or away from the fixed base.

[0016] Specifically, during use, one end of the cutter shaft is inserted into the drive base, and the other end is installed on the fixed base. The power component of the garden equipment can drive the cutter shaft located on the drive base to rotate. When the cutter shaft needs to be replaced, the operator lifts the lifting component and pulls out the locking piece inserted into the cutter shaft. Then, the swing component drives the lifting component to swing outward of the cutter shaft, so that the lifting component can be separated from the disassembly direction of the cutter shaft. This ensures that the disassembly of the cutter shaft is not obstructed, making it easier for the operator to replace the cutter shaft and improving maintenance efficiency.

[0017] This invention provides a soil ripper, including a quick-change cutter shaft structure. The soil ripper has the advantages described above compared to existing technologies, which will not be elaborated further here. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the tool shaft locking mechanism provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the tool shaft quick-change structure unlocking the tool shaft according to an embodiment of the present invention. Figure 3 This is an exploded view of the quick-change tool shaft structure provided in an embodiment of the present invention; Figure 4 This is a cross-sectional view of the quick-change tool shaft structure provided in an embodiment of the present invention; Figure 5 This is the first unlocking method for the quick-change tool shaft structure provided in this embodiment of the invention; Figure 6 This is a second unlocking method for the quick-change tool shaft structure provided in the embodiments of the present invention.

[0020] icon: 100-Drive base; 200 - Fixed base; 210 - Clearance passage; 220 - Mounting slot; 300 - Cutter shaft; 310 - Bearing housing; 400 - Swing assembly; 410 - Swing shaft; 420 - Swing linkage; 430 - Mounting base; 431 - Stepped hole; 500 - Lifting assembly; 510 - Locking element; 511 - Locking rod; 512 - Locking head; 513 - Anti-loosening nut; 520 - Lifting seat; 530 - Return spring; 600 - Locking hole. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0026] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment provides a quick-change tool shaft structure, including a drive base 100, a fixed base 200, a tool shaft 300, a swing assembly 400, and a lifting assembly 500; one end of the tool shaft 300 is inserted into the drive base 100, and the other end is mounted on the fixed base 200; one end of the swing assembly 400 is pivotally connected to the fixed base 200, and the lifting assembly 500 is mounted on the other end of the swing assembly 400 so that the lifting assembly 500 can swing relative to the fixed base 200; the locking member 510 on the lifting assembly 500 can move closer to or further away from the fixed base 200.

[0027] Specifically, during use, one end of the cutter shaft 300 is inserted into the drive base 100, and the other end is mounted on the fixed base 200. The power component of the garden equipment can drive the cutter shaft 300 located on the drive base 100 to rotate. When the cutter shaft 300 needs to be replaced, the operator lifts the lifting component 500 and pulls out the locking piece 510 inserted into the cutter shaft 300. Then, the swing component 400 drives the lifting component 500 to swing outward of the cutter shaft 300, so that the lifting component 500 can be separated from the disassembly direction of the cutter shaft 300. This ensures that the disassembly of the cutter shaft 300 is not obstructed, making it easier for the operator to replace the cutter shaft 300 and improving maintenance efficiency.

[0028] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional embodiment, the swing assembly 400 includes a swing shaft 410, a swing connecting rod 420, and a mounting base 430; the swing shaft 410 is pivotally connected to the bottom of the fixed base 200, and the two ends of the swing shaft 410 are connected to the swing connecting rod 420; the mounting base 430 is fixedly installed on the end of the swing connecting rod 420 away from the swing shaft 410; the lifting assembly 500 is installed on the mounting base 430, and the height of the mounting base 430 is higher than the height of the cutter shaft 300 installed on the fixed base 200.

[0029] Specifically, a swing shaft 410 is provided at the bottom of the fixed base 200, and swing connecting rods 420 are pivotally connected to both ends of the swing shaft 410. A mounting seat 430 is provided at the end of the swing shaft 410 away from the swing shaft 410. This arrangement allows the operator to control the rotation of the mounting seat 430. During the rotation of the mounting seat 430, the height of the mounting seat 430 is higher than the height of the cutter shaft 300, so that the lifting component 500 on the mounting seat 430 can lock or unlock the cutter shaft 300.

[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional embodiment, a clearance channel 210 is provided on the fixed base 200, and the end of the swing link 420 away from the swing axis 410 passes through the clearance channel 210, allowing the swing link 420 to swing within the clearance channel 210.

[0031] Specifically, a clearance channel 210 is provided on the fixed base 200, the swing link 420 is located in the clearance channel 210, and one end of the swing link 420 can protrude out of the clearance channel 210 and connect with the mounting base 430. The width of the clearance channel 210 is greater than the width of the swing link 420, so that the swing link 420 can swing within the clearance channel 210.

[0032] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional embodiment, the top of the fixed base 200 is configured as an arc shape to adapt to the swing of the mounting base 430.

[0033] Specifically, the top of the fixed base 200 is set in an arc shape to avoid the top of the fixed base 200 affecting the swing of the mounting base 430.

[0034] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in the optional embodiment, a bearing seat 310 is provided at the end of the cutter shaft 300 away from the drive base 100, and a mounting groove 220 for accommodating the bearing seat 310 is provided on the fixed base 200; the clearance channel 210 is located outside the mounting groove 220.

[0035] Specifically, a bearing seat 310 is provided at the end of the cutter shaft 300 away from the drive base 100, and an installation groove 220 is provided on the fixed base 200. The bearing seat 310 can be installed in the installation groove 220, which makes it convenient for the staff to install the cutter shaft 300.

[0036] In addition, the clearance channel 210 is located on both sides of the mounting groove 220 to ensure the normal operation of the swing assembly 400 and to enable the lifting assembly 500 provided on the swing assembly 400 to face the cutter shaft 300 or the bearing seat 310.

[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in the optional embodiment, the lifting assembly 500 includes a lifting base 520, a return spring 530, and a locking member 510; a stepped hole 431 is provided in the mounting base 430, with the smaller diameter end of the stepped hole 431 close to the lifting base 520, the locking member 510 is inserted into the stepped hole 431, and the end of the locking member 510 protruding from the stepped hole 431 is connected to the lifting base 520; the return spring 530 is disposed in the stepped hole 431 and is sleeved on the locking member 510.

[0038] The locking member 510 adopts a locking rod 511, one end of which has a locking head 512. The locking head 512 abuts against the return spring 530 and can be inserted into the locking hole 600.

[0039] Specifically, the locking member 510 is inserted into the stepped hole 431 of the mounting base 430. The locking head 512 at the tail end of the locking member 510 can abut against the return spring 530. The return spring 530 abuts against the inside of the stepped hole 431, and the large diameter end of the stepped hole 431 faces the fixed base 200. One end of the locking member 510 passing through the stepped hole 431 can be connected to the lifting seat 520, thereby connecting the lifting seat 520 and the mounting base 430 together. In use, the locking head 512 of the locking rod 511 can protrude from the large diameter end of the stepped hole 431 under the action of the return spring 530, so that the locking head 512 can engage with the bearing seat 310 or the fixed base 200, thereby restricting the position of the mounting seat 430 and the lifting seat 520, preventing the mounting seat 430 and the lifting seat 520 from swinging relative to the fixed base 200, thereby blocking the cutter shaft 300 and the bearing seat 310 directly below the mounting seat 430, and preventing the bearing seat 310 from dislodging from the mounting groove 220 of the fixed base 200.

[0040] The locking member 510 has an external thread at one end that passes through the stepped hole 431. An assembly groove is provided on the lifting seat 520. The locking member 510 passes through the assembly groove and an anti-loosening nut 513 is provided in the assembly groove. The loosening nut is connected to the locking member 510, thereby connecting the lifting seat 520 and the mounting seat 430 together.

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in an optional embodiment, a stepped hole 431 is provided on the mounting base 430, and a locking hole 600 corresponding to the stepped hole 431 is provided on the bearing seat 310. The locking member 510 can be inserted into the locking hole 600 under the action of the return spring 530.

[0042] Specifically, a stepped hole 431 can be made on the mounting base 430, and a locking hole 600 can be made on the bearing seat 310. The locking member 510 of the lifting assembly 500 cooperates with the locking hole 600 on the bearing seat 310 to lock the cutter shaft 300.

[0043] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in the optional embodiment, the mounting base 430 is provided with a plurality of stepped holes 431, and the fixed base 200 is provided with a plurality of locking holes 600 corresponding to the stepped holes 431. The locking member 510 can be inserted into the locking hole 600 under the action of the return spring 530.

[0044] Specifically, two stepped holes 431 can be made on the mounting base 430, and two locking holes 600 can be made on the fixed base 200. The locking member 510 of the lifting assembly 500 cooperates with the locking holes 600 on the fixed base 200 to lock the cutter shaft 300.

[0045] This embodiment provides a soil loosening machine, including a quick-change cutter shaft structure.

[0046] Specifically, the soil ripper provided in this embodiment has the advantages of the aforementioned quick-change cutter shaft structure compared with the prior art, which will not be elaborated here.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-change tool shaft structure, characterized in that, include: Drive base (100), fixed base (200), cutter shaft (300), swing assembly (400) and lifting assembly (500); One end of the cutter shaft (300) is inserted into the drive base (100), and the other end rests on the fixed base (200); One end of the swing assembly (400) is pivotally connected to the fixed base (200), and the lifting assembly (500) is mounted on the other end of the swing assembly (400) so that the lifting assembly (500) can swing relative to the fixed base (200); The locking element (510) on the lifting assembly (500) can be close to or away from the fixed base (200).

2. The quick-change tool shaft structure according to claim 1, characterized in that, The swing assembly (400) includes a swing shaft (410), a swing link (420), and a mounting base (430). The swing shaft (410) is pivotally connected to the bottom of the fixed base (200), and the two ends of the swing shaft (410) are connected to the swing connecting rod (420). The mounting base (430) is fixedly installed at the end of the swing connecting rod (420) away from the swing shaft (410). The lifting assembly (500) is mounted on the mounting base (430), the height of which is higher than the height of the cutter shaft (300) mounted on the fixed base (200).

3. The quick-change tool shaft structure according to claim 2, characterized in that, The fixed base (200) has an avoidance channel (210), and the end of the swing link (420) away from the swing axis (410) passes through the avoidance channel (210). The swing link (420) can swing within the avoidance channel (210).

4. The quick-change tool shaft structure according to claim 3, characterized in that, The top of the fixed base (200) is configured in an arc shape to adapt to the swing of the mounting base (430).

5. The quick-change tool shaft structure according to claim 3, characterized in that, The cutter shaft (300) is provided with a bearing seat (310) at one end away from the drive base (100), and the fixed base (200) is provided with a mounting groove (220) for accommodating the bearing seat (310). The clearance channel (210) is located outside the mounting slot (220).

6. The quick-change tool shaft structure according to claim 5, characterized in that, The lifting assembly (500) includes a lifting seat (520), a return spring (530), and the locking member (510). The mounting base (430) has a stepped hole (431) inside. The smaller diameter end of the stepped hole (431) is close to the lifting base (520). The locking member (510) is inserted into the stepped hole (431). The end of the locking member (510) protruding from the stepped hole (431) is connected to the lifting base (520). The reset spring (530) is disposed in the stepped hole (431) and the reset spring (530) is sleeved on the locking member (510).

7. The quick-change tool shaft structure according to claim 6, characterized in that, The mounting base (430) has a stepped hole (431), and the bearing seat (310) has a locking hole (600) corresponding to the stepped hole (431). The locking member (510) can be inserted into the locking hole (600) under the action of the return spring (530).

8. The quick-change tool shaft structure according to claim 6, characterized in that, The mounting base (430) has multiple stepped holes (431), and the fixed base (200) has multiple locking holes (600) corresponding to the stepped holes (431). The locking member (510) can be inserted into the locking hole (600) under the action of the return spring (530).

9. The quick-change tool shaft structure according to claim 7 or 8, characterized in that, The locking member (510) adopts a locking rod (511), one end of which has a locking head (512). The locking head (512) abuts against the return spring (530) and can be inserted into the locking hole (600).

10. A soil loosening machine, characterized in that, Includes the quick-change tool shaft structure as described in any one of claims 1-9.

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