Grass winding prevention device for rotary cultivator

Abstract

The utility model provides a grass winding prevention device for a rotary cultivator, belongs to the technical field of agricultural machinery, and aims to solve the problem that when an existing rotary cultivator performs rotary tillage operation on land, weeds or platycodon grandiflorum and the like are easily wound on the surface of a rotating shaft, and normal operation of the rotary cultivator is affected. Comprising a rotary cultivator body. The connecting frame is in bolted connection with the upper part of the rotary cultivator main body; the driving mechanism is in bolted connection with the interior of the rotary cultivator main body; the rotary tillage cutter shaft is fixedly mounted in the driving mechanism, and the rotary tillage cutter shaft is rotationally connected to the interior of the rotary cultivator main body; a plurality of groups of rotary tillage blades are arranged, and the plurality of groups of rotary tillage blades are in bolted connection with the interior of the rotary tillage cutter shaft; the connecting and cleaning assembly is arranged in the rotary tillage cutter shaft; and the cutter shaft cleaning assembly is arranged in the rotary tillage cutter shaft. The device has the advantages of being convenient to maintain, capable of avoiding grass winding, convenient to use and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and more specifically, particularly relates to a grass entanglement prevention device for a rotary tiller. Background Art

[0002] A rotary tiller is an agricultural tilling machine used in conjunction with a tractor. It is mainly used to complete operations such as plowing and raking. The existing rotary tillers are mainly driven by a driving mechanism to drive the rotating shaft. Multiple sets of blades are installed on the surface of the rotating shaft. The rotating shaft is used to drive the blades to rotate. When the blades rotate, the blades rotate and cut into the soil and turn the ground over, thereby breaking and turning the soil, which plays an effective tillage role.

[0003] Existing application number 201720091566.9 The utility model discloses a rotary tiller with an anti-grass entanglement device, comprising a frame, a transmission box arranged on the frame, and a rotary tiller shaft arranged below the frame, wherein the rotary tiller shaft is in driving connection with the transmission box, the rotary tiller shaft is provided with a plurality of knife seats, the knife seats are provided with rotary tillers, and the rotary tiller shaft is provided with an anti-grass entanglement device, wherein the anti-grass entanglement device comprises an anti-grass entanglement component in the form of a long strip arranged between the knife seats, or between the rotary tillers, or between the brackets on the rotary tiller shaft. The rotary tiller provided by the utility model can prevent excessive weeds or straw from being entangled on the rotary tiller shaft, thereby ensuring the normal operation of the rotary tiller.

[0004] Based on the above, when the existing rotary tiller is performing rotary tillage operations on the land, weeds or platycodon grandiflorum are easily entangled on the surface of the rotating shaft, affecting the normal operation of the rotary tiller, and the rotating shaft needs to be cleaned manually. However, the number of blades is large and distributed around the rotating shaft, which affects the cleaning of the rotating shaft by the staff, and the cleaning efficiency is poor. In addition, weeds are easily introduced into the bearing connection between the rotating shaft and the driving mechanism and the rotary tiller housing, and the weeds entering the connection are very likely to affect the operation of the rotating shaft. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an anti-weed entanglement device for a rotary tiller to solve the problem that when the existing rotary tiller is performing rotary tillage operations on the land, weeds or platycodon grandiflorum are easily entangled on the surface of the rotating shaft, affecting the normal operation of the rotary tiller, and the rotating shaft needs to be cleaned manually. However, the number of blades is large and distributed around the rotating shaft, which affects the cleaning of the rotating shaft by the staff, and the cleaning efficiency is poor. In addition, weeds are easily introduced into the bearing connection between the rotating shaft and the driving mechanism and the rotary tiller housing, and the weeds entering the connection can easily affect the operation of the rotating shaft.

[0006] The purpose and effect of the anti-grass entanglement device for a rotary tiller of the utility model are achieved by the following specific technical means:

[0007] A grass entanglement prevention device for a rotary tiller, comprising a rotary tiller main body;

[0008] Connecting frame, the connecting frame is bolted to the upper part of the rotary tiller main body;

[0009] Driving mechanism, the driving mechanism is bolted inside the rotary tiller main body;

[0010] Rotary tiller blade shaft, the rotary tiller blade shaft is fixedly installed inside the driving mechanism, and the rotary tiller blade shaft is rotatably connected inside the rotary tiller main body;

[0011] Rotary tiller blades, there are multiple groups of the rotary tiller blades, and multiple groups of rotary tiller blades are bolted inside the rotary tiller blade shaft;

[0012] Connecting cleaning component, the connecting cleaning component is arranged inside the rotary tiller blade shaft;

[0013] Blade shaft cleaning component, the blade shaft cleaning component is arranged inside the rotary tiller blade shaft.

[0014] Furthermore, the connecting cleaning component includes:

[0015] Fixing clips, there are multiple groups of the fixing clips, each group of fixing clips consists of two semi-circular fixing clips, the two fixing clips are hinged together to form a circular ring, and the two fixing clips are bolted together to clamp on the surface of the rotary tiller blade shaft;

[0016] Fixing films, there are multiple groups of the fixing films, and multiple groups of fixing films are fixedly installed inside the fixing clips.

[0017] Furthermore, the connecting cleaning component includes:

[0018] Installation groove, the installation groove is opened inside the fixing clip;

[0019] Rotating cutter head, the rotating cutter head is bolted inside the installation groove.

[0020] Furthermore, the blade shaft cleaning component includes:

[0021] Cutter head installation box, there are multiple groups of the cutter head installation boxes, and multiple groups of cutter head installation boxes are fixedly installed inside the rotary tiller blade shaft;

[0022] Cutting cutter head, there are multiple groups of the cutting cutter heads, and each group of cutting cutter heads is installed inside each group of cutter head installation boxes by bolts.

[0023] Furthermore, the blade shaft cleaning component further includes:

[0024] Rotating shaft, the rotating shaft is rotatably connected to both sides inside the cutter head installation box;

[0025] Drive plate, the drive plate is fixedly installed inside the rotating shaft.

[0026] Furthermore, the blade shaft cleaning component further includes:

[0027] A limiting clip, which is fixedly installed on the top of the transmission plate;

[0028] A warping plate, which is fixedly installed on the bottom of the transmission plate.

[0029] Furthermore, the cutter shaft cleaning assembly further includes:

[0030] Sliding rods, multiple groups of which are arranged and slide inside the rotary tiller cutter shaft;

[0031] Protective baffles, multiple groups of which are arranged, and each group of protective baffles is connected to the top ends of every two groups of sliding rods by bolts;

[0032] Limit baffles, multiple groups of which are arranged and fixedly installed at the ends of the sliding rods;

[0033] Blade grooves, which are opened inside the protective baffles.

[0034] Compared with the prior art, the utility model has the following beneficial effects:

[0035] Firstly, the utility model has a connection cleaning assembly. The rotary cutter head is quickly installed on the rotary tiller cutter shaft through a fixed clip to protect the connection between the rotary tiller cutter shaft and the main body of the rotary tiller and the driving mechanism. The rotation of the rotary tiller cutter shaft drives the rotary cutter head to rotate and cut the weeds at the connection, preventing the connection from being invaded or entangled by weeds and affecting the normal operation of the rotary tiller cutter shaft, greatly improving the operating efficiency of the rotary tiller cutter shaft, and facilitating the replacement of the rotary cutter head, thus greatly improving the maintenance efficiency of the rotary cutter head.

[0036] Secondly, the utility model has a cutter shaft cleaning assembly. The rotation of the rotary tiller cutter shaft drives the protective baffle through centrifugal force to protect the cutting cutter head, preventing the crushed stones thrown up by the rotary tiller blades during rotary tilling from splashing to the position of the cutting cutter head and damaging the cutting cutter head, greatly prolonging the service life of the cutting cutter head. Moreover, the cutting cutter head effectively cuts the weeds entangled on the rotary tiller cutter shaft, preventing the weeds from entangling the rotary tiller cutter shaft and affecting the use, and facilitating the replacement of the cutting cutter head and the maintenance of the cutting cutter head.

[0037] The utility model has the advantages of being easy to maintain, avoiding grass entanglement, and being convenient to use, greatly improving the smoothness of the rotary tiller cutter shaft during operation, preventing weeds from entangling the rotary tiller cutter shaft, and having a simple structure and being convenient to use, facilitating maintenance and replacement, thus greatly improving the use effect of the rotary tiller during rotary tilling. Brief Description of the Drawings

[0038] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0039] Figure 2 This is a schematic diagram of the rotary tillage knife shaft structure of the present utility model.

[0040] Figure 3 This is a schematic diagram of the fixed clamp structure of the present utility model.

[0041] Figure 4 This is a schematic diagram of the rotary cutter head structure of the present utility model.

[0042] Figure 5 This is a schematic diagram of the protective baffle structure of the present utility model.

[0043] Figure 6 This is a schematic diagram of the cutting cutter head structure of the present utility model.

[0044] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0045] 1. Rotary tiller main body; 2. Connecting frame; 3. Driving mechanism; 4. Rotary tillage knife shaft; 5. Rotary tillage blades; 6. Fixed clamp; 601. Fixed film; 602. Installation groove; 603. Rotary cutter head; 7. Protective baffle; 701. Blade groove; 702. Sliding rod; 703. Limit baffle; 8. Cutting cutter head; 801. Cutter head installation box; 802. Transmission plate; 803. Rotating shaft; 804. Lifting plate; 805. Limit clamp. Specific embodiments

[0046] The following further describes the embodiments of the present utility model in detail in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0047] Example 1:

[0048] As shown in Attachment Figure 1 to Attachment Figure 6 shown:

[0049] The present utility model provides an anti - entanglement grass device for a rotary tiller, including a rotary tiller main body 1;

[0050] Connecting frame 2, and the connecting frame 2 is bolt - connected to the upper part of the rotary tiller main body 1;

[0051] Driving mechanism 3, and the driving mechanism 3 is bolt - connected to the inside of the rotary tiller main body 1;

[0052] Rotary tillage knife shaft 4, the rotary tillage knife shaft 4 is fixedly installed inside the driving mechanism 3, and the rotary tillage knife shaft 4 is rotatably connected to the inside of the rotary tiller main body 1;

[0053] Rotary tillage blades 5, multiple groups of rotary tillage blades 5 are bolt - connected to the inside of the rotary tillage knife shaft 4;

[0054] The connecting and cleaning component is arranged inside the rotary tillage knife shaft 4.

[0055] Among them, the connecting and cleaning component includes:

[0056] The fixing clip 6 is provided with multiple groups. Each group of fixing clips 6 is composed of two semi-circular fixing clips 6. The two fixing clips 6 are hinged together to form a circular ring, and the two fixing clips 6 are connected together by bolts and clamped on the surface of the rotary tillage knife shaft 4.

[0057] The fixing film 601 is provided with multiple groups. The multiple groups of fixing films 601 are fixedly installed inside the fixing clip 6. Its function is to open the two fixing clips 6, put the fixing clip 6 on the connection between the rotary tillage knife shaft 4 and the rotary tillage machine main body 1 and the driving mechanism 3, and fix the two fixing clips 6 with bolts. The fixing film 601 strengthens the fixing effect of the fixing clip 6 and avoids the fixing clip 6 from wearing the rotary tillage knife shaft 4.

[0058] Among them, the connecting and cleaning component includes:

[0059] The installation groove 602 is opened inside the fixing clip 6.

[0060] The rotary cutter head 603 is bolted inside the installation groove 602. Its function is to fix the rotary cutter head 603 inside the installation groove 602 by bolts.

[0061] The specific usage method and function of this embodiment:

[0062] When it is necessary to protect the connection between the rotary tillage knife shaft 4 and the rotary tillage machine main body 1 and the driving mechanism 3, the rotary cutter head 603 is installed and fixed inside the installation groove 602 by bolts. At the same time, the installation groove 602 facilitates the replacement of the rotary cutter head 603. Open the two fixing clips 6, put the fixing clip 6 on the connection between the rotary tillage knife shaft 4 and the rotary tillage machine main body 1 and the driving mechanism 3, and fix the two fixing clips 6 with bolts. The fixing film 601 strengthens the fixing effect of the fixing clip 6 and avoids the fixing clip 6 from wearing the rotary tillage knife shaft 4. The fixing clip 6 makes the rotary cutter head 603 installed on the surface of the rotary tillage knife shaft 4. When the rotary tillage machine main body 1 is installed behind the tractor by the connecting frame 2 for work, the driving mechanism 3 drives the rotary tillage knife shaft 4 to rotate, the rotary tillage knife shaft 4 drives the fixing clip 6 to rotate, and the fixing clip 6 drives the rotary cutter head 603 inside the installation groove 602 to rotate. The rotary cutter head 603 rotates and cuts the weeds at the connection between the rotary tillage machine main body 1 and the driving mechanism 3.

[0063] Embodiment 2:

[0064] On the basis of Embodiment 1, as Figures 1 to 6 shown, it further includes:

[0065] The cutter shaft cleaning assembly is arranged inside the rotary tillage cutter shaft 4.

[0066] Among them, the cutter shaft cleaning assembly includes:

[0067] The cutter head mounting box 801, there are multiple groups of cutter head mounting boxes 801, and multiple groups of cutter head mounting boxes 801 are fixedly installed inside the rotary tillage cutter shaft 4;

[0068] The cutting cutter head 8, there are multiple groups of cutting cutter heads 8, and each group of cutting cutter heads 8 is installed inside each group of cutter head mounting boxes 801 through bolts; The function is to insert the cutting cutter head 8 into the cutter head mounting box 801 and fix the cutting cutter head 8 inside the cutter head mounting box 801 through screws.

[0069] Among them, the cutter shaft cleaning assembly further includes:

[0070] The rotating shaft 803, the rotating shaft 803 is rotatably connected to both sides inside the cutter head mounting box 801;

[0071] The transmission plate 802, the transmission plate 802 is fixedly installed inside the rotating shaft 803; The function is to toggle the transmission plate 802, and the transmission plate 802 swings with the rotating shaft 803 as the fulcrum.

[0072] Among them, the cutter shaft cleaning assembly further includes:

[0073] The limit clip 805, the limit clip 805 is fixedly installed on the top of the transmission plate 802;

[0074] The tilting plate 804, the tilting plate 804 is fixedly installed at the bottom of the transmission plate 802; The function is that the swing of the transmission plate 802 drives the limit clip 805 and the tilting plate 804 to swing.

[0075] Among them, the cutter shaft cleaning assembly further includes:

[0076] The sliding rod 702, there are multiple groups of sliding rods 702, and multiple groups of sliding rods 702 slide inside the rotary tillage cutter shaft 4;

[0077] The protective baffle 7, there are multiple groups of protective baffles 7, and each group of protective baffles 7 is connected to the top of every two groups of sliding rods 702 through bolts;

[0078] The limit baffle 703, there are multiple groups of limit baffles 703, and multiple groups of limit baffles 703 are fixedly installed at the ends of the sliding rods 702;

[0079] The blade slot 701 is opened inside the protective baffle 7. Its function is that when the rotary tillage knife shaft 4 rotates to drive the protective baffle 7 to rotate, the protective baffle 7 drives the sliding rod 702 to slide outward along the rotary tillage knife shaft 4 by centrifugal force during rotation. The limit baffle 703 limits the sliding rod 702 to prevent the sliding rod 702 from detaching from the inside of the rotary tillage knife shaft 4. The blade slot 701 facilitates the passage of the cutting tool head 8.

[0080] The specific usage mode and function of this embodiment:

[0081] When the rotary tillage knife shaft 4 rotates to drive the rotary tillage blade 5 to till the land, the rotary tillage knife shaft 4 rotates to drive the protective baffle 7 to rotate. The protective baffle 7 drives the sliding rod 702 to slide outward along the rotary tillage knife shaft 4 by centrifugal force during rotation. The limit baffle 703 limits the sliding rod 702 to prevent the sliding rod 702 from detaching from the inside of the rotary tillage knife shaft 4. The blade slot 701 facilitates the passage of the cutting tool head 8. The protective baffle 7 protects the cutting tool head 8 inside the tool head mounting box 801 from the outside to prevent the gravel splashed by the rotary tillage blade 5 during tillage from hitting the cutting tool head 8 and damaging the cutting tool head 8.

[0082] When the rotary tillage knife shaft 4 is entangled with weeds, the weeds press the protective baffle 7 to move inward along the rotary tillage knife shaft 4 during entanglement. The movement of the protective baffle 7 causes the cutting tool head 8 to slide out of the blade slot 701 to cut the weeds.

[0083] When the cutting tool head 8 needs to be replaced, if the cutting tool head 8 is corroded, deformed, etc. and is not easily pulled out from the inside of the tool head mounting box 801, swing the limit clip 805. The limit clip 805 drives the transmission plate 802 to swing with the rotation shaft 803 as the fulcrum. The swing of the transmission plate 802 drives the lifting plate 804 to lift the bottom of the cutting tool head 8, facilitating the removal of the cutting tool head 8. When a new cutting tool head 8 is installed inside the tool head mounting box 801, the bottom of the cutting tool head 8 presses the lifting plate 804 to move. The lifting plate 804 drives the transmission plate 802 to swing with the rotation shaft 803 as the fulcrum. The transmission plate 802 drives the limit clip 805 to swing and then limits the left and right sides of the cutting tool head 8, making the cutting tool head 8 more stable after installation.

Claims

1. A grass entanglement prevention device for a rotary tiller, characterized in that: The anti-grass entanglement device for a rotary tiller comprises a rotary tiller body (1); a connecting frame (2), the connecting frame (2) being bolted to the upper part of the rotary tiller body (1); a driving mechanism (3), the driving mechanism (3) being bolted to the inside of the rotary tiller body (1); a rotary tiller blade shaft (4), the rotary tiller blade shaft (4) being fixedly mounted inside the driving mechanism (3), the rotary tiller blade shaft (4) being rotatably connected to the inside of the rotary tiller body (1); a rotary tiller blade (5), the rotary tiller blade (5) being provided with a plurality of groups, the plurality of groups of rotary tiller blades (5) being bolted to the inside of the rotary tiller blade shaft (4); a connection cleaning assembly, the connection cleaning assembly being arranged inside the rotary tiller blade shaft (4); and a blade shaft cleaning assembly, the blade shaft cleaning assembly being arranged inside the rotary tiller blade shaft (4).

2. The anti-grass entanglement device for a rotary tiller according to claim 1, characterized in that: The connection cleaning component comprises: a fixing clamp (6) and a fixing rubber sheet (601); the fixing clamp (6) is provided in a plurality of groups, each group of fixing clamps (6) is composed of two semicircular arc-shaped fixing clamps (6); the two fixing clamps (6) are hinged together to form a circular ring; the two fixing clamps (6) are connected together by bolts and clamped on the surface of the rotary tiller shaft (4); and the fixing rubber sheet (601) is provided in a plurality of groups, and the plurality of groups of fixing rubber sheets (601) are fixedly installed inside the fixing clamps (6).

3. The anti-grass entanglement device for a rotary tiller as claimed in claim 2, characterized in that: The connection cleaning assembly comprises: a mounting groove (602) and a rotating cutter head (603); the mounting groove (602) is arranged inside the fixing clamp (6); and the rotating cutter head (603) is bolted inside the mounting groove (602).

4. The anti-grass entanglement device for a rotary tiller according to claim 1, characterized in that: The blade shaft cleaning assembly comprises: a blade head mounting box (801) and a cutting blade head (8); the blade head mounting box (801) is provided in a plurality of groups, and the plurality of groups of blade head mounting boxes (801) are fixedly mounted inside the rotary tiller blade shaft (4); and the cutting blade heads (8) are provided in a plurality of groups, and each group of cutting blade heads (8) is mounted inside each group of blade head mounting boxes (801) by means of bolts.

5. The anti-grass entanglement device for a rotary tiller as claimed in claim 4, characterized in that: The cutter shaft cleaning assembly further comprises: a rotating shaft (803) and a transmission plate (802), wherein the rotating shaft (803) is rotatably connected to both sides of the cutter head mounting box (801); and the transmission plate (802) is fixedly mounted inside the rotating shaft (803).

6. The anti-grass entanglement device for a rotary tiller as claimed in claim 4, characterized in that: The knife shaft cleaning assembly also includes: a limit clamp (805) and a rocking plate (804), wherein the limit clamp (805) is fixedly mounted on the top of the transmission plate (802); and the rocking plate (804) is fixedly mounted on the bottom of the transmission plate (802).

7. The anti-grass entanglement device for a rotary tiller as claimed in claim 4, characterized in that: The blade shaft cleaning assembly further comprises: a sliding rod (702), a protective baffle (7), a limit baffle (703) and a blade slot (701); the sliding rod (702) is provided in multiple groups, and the multiple groups of sliding rods (702) slide inside the rotary tiller blade shaft (4); the protective baffle (7) is provided in multiple groups, and each group of protective baffles (7) is connected to the top of every two groups of sliding rods (702) by bolts; the limit baffle (703) is provided in multiple groups, and the multiple groups of limit baffles (703) are fixedly installed at the end of the sliding rod (702); and the blade slot (701) is opened inside the protective baffle (7).

Images