Anti-blocking device for compound mini-tiller

Abstract

The utility model provides an anti-blocking device for a compound mini-tiller, and relates to the field of compound mini-tillers, the anti-blocking device comprises a traction frame and a rack, a gearbox and a transmission shaft are arranged on the rack, the transmission shaft is connected with the gearbox, the gearbox can drive the transmission shaft to rotate, and a rotary blade assembly is arranged on the transmission shaft. Rotary tillage cutter assemblies are arranged on the rack, the rotary tillage cutter assemblies are arranged at equal intervals in the length direction of the transmission shaft, straw can be cut through the rotary tillage cutter assemblies, weeding rods are further arranged on the rack, the weeding rods are located at the two ends of the transmission shaft, the weeding rods are cylindrical, sleeves are arranged on the weeding rods, and the sleeves are cylindrical and arranged on the weeding rods in a sleeving mode. The weeding machine has the advantages that soil and weeds wound on the transmission shaft are scraped through the weeding rods arranged on the machine frame, so that power consumption increase caused by blockage of the transmission shaft is avoided, production efficiency is improved, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of compound tillage machines, in particular to an anti-blocking device for compound tillage machines. Background Art

[0002] A tiller is a driven soil tillage machine with rotating blades as working parts. It is divided into two types according to the configuration of its rotary tillage blade shaft: horizontal shaft type and vertical shaft type. The tiller has a strong soil crushing ability, but the existing tiller consumes a lot of energy when working on land with a large weed coverage area. This is mainly because more and taller weeds are very easy to entangle on the outside of the rotating shaft when the tiller is working, making the tillage more laborious. Now, a rotary cutting anti-blocking device for a compound tiller with a publication number of CN220342776U has been retrieved. The core component of the anti-blocking device is an active rotary cutting blade monomer. The rotary cutting blade It is driven to rotate by power, and its direction is the same as the forward direction of the working machine. When the blade of the rotary cutter contacts the straw, the straw is stationary relative to the ground. At this time, the rotary cutter cuts the straw without support, and the severed straw is thrown backward by its own inertia; the straw that is not completely cut off moves backward and upward under the influence of the moving rotary cutter until it contacts the handle of the deep tillage shovel and stops. At this time, with the assistance of the handle of the deep tillage shovel, the rotary cutter cuts the straw with support to achieve complete cutting of the straw, and the severed straw is thrown to the rear of the deep tillage shovel by its own inertia, solving the blockage problem of the compound tillage machine.

[0003] However, in the above technology, the cut straw is thrown behind the deep tillage shovel after being cut by the rotary cutter, which cannot solve the blockage problem caused by the entanglement of weeds and soil on the power drive. Utility Model Content

[0004] The problem to be solved by the utility model is to prevent the tillage machine from being entangled by soil and weeds during operation, so as to cause the machine to run overloaded, increase energy consumption and reduce production efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a blocking prevention device for a compound minimum tillage machine, comprising a traction frame and a frame, a gear box and a transmission shaft are arranged on the frame, the transmission shaft is connected to the gear box, the gear box can drive the transmission shaft to rotate, a rotary tiller assembly is arranged on the transmission shaft, the rotary tiller assembly is arranged at equal distances along the length direction of the transmission shaft, and straw can be cut by the rotary tiller assembly, a weeding rod is also arranged on the frame, the weeding rod is located at both ends of the transmission shaft, the weeding rod is cylindrical, a sleeve is arranged on the weeding rod, the sleeve is cylindrical and is sleeved on the weeding rod, the sleeve can rotate around the weeding rod, a scraper is arranged on the sleeve, and the scraper is arranged in a circular array around the sleeve.

[0006] More preferably, the length of the scraper is the same as that of the sleeve, and there is a gap between the scraper and the transmission shaft.

[0007] More preferably, the rotary tiller blade assembly includes a fixed disk and rotary tiller blades, the fixed disk is connected to the transmission shaft, the rotary tiller blades are arranged in a ring array around the fixed disk, and the rotary tiller blades are overall in a "T" shape.

[0008] More preferably, the rotary tillage blade includes a cutting blade and a soil crushing head, both sides of the cutting blade are blades, the soil crushing head is bladeless, and the width of the soil crushing head is greater than the width of the cutting blade.

[0009] More preferably, the frame is also provided with a tillage shovel, which includes an adjustable shovel handle and a shovel head. The adjustable shovel handle is connected to the frame, and a knob is provided on the adjustable shovel handle, by which the height of the shovel head can be controlled.

[0010] More preferably, the shovel head includes two shovel surfaces, which are connected to the adjustable shovel handle through a fixed rod, a positioning sleeve is sleeved on the fixed rod, a connecting rod is axially connected to the positioning sleeve, and the positioning sleeve is connected to the shovel surfaces through the connecting rod.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the soil and weeds wrapped around the transmission shaft are scraped by a weeding rod arranged on the frame. Specifically, the weeding rod is arranged on the frame and located on both sides of the transmission shaft. A sleeve is also provided on the weeding rod, and a scraper is provided on the sleeve. When the scraper is subjected to external force, the sleeve can drive the sleeve to rotate around the weeding rod. Under normal conditions, there is a gap between the scraper and the transmission shaft. When the transmission shaft is entangled with soil and weeds, the soil and weeds on the transmission shaft will contact the scraper, causing the scraper to scrape them off, and the scraper will drive the sleeve to rotate around the weeding rod. When the sleeve rotates, the scraper rotates accordingly to better scrape off the soil and weeds on the transmission shaft, thereby avoiding the increase in power consumption caused by blockage of the transmission shaft, thereby improving production efficiency and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0014] Figure 3 It is a left-side structural schematic diagram of the utility model;

[0015] Figure 4 This is a schematic diagram of the top view of the tillage shovel of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the rotary tiller blade assembly of the utility model;

[0017] Figure 6 This is a schematic diagram of the rotary tillage blade structure of the utility model

[0018] Figure 7 This is a schematic diagram of the weeding rod structure of the utility model

[0019] Among them, 1-frame, 2-gear box, 3-drive shaft, 4-fixed plate, 5-rotary tillage blade, 501-cutting blade, 502-soil crushing head, 6-adjustable shovel handle, 7-knob, 8-shovel surface, 9-fixed rod, 10-positioning sleeve, 11-connecting rod, 12-weeding rod, 13-sleeve, 14-scraper. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be an electrical connection; it can be a hydraulic oil circuit connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] See also Figures 1 to 7As shown, an anti-blocking device for a compound tillage machine comprises a traction frame and a frame 1. The traction frame is connected to the frame 1. The traction frame is used to be hung on a tractor to realize the installation and disassembly of the tillage machine, and the power generated by the tractor is transmitted through the traction frame, thereby driving the tillage machine to move for operation. A gear box 2 and a transmission shaft 3 are arranged on the frame 1. The gear box 2 is connected to the transmission shaft 3. The gear box 2 can control the rotation of the transmission shaft 3, and the gear box 2 can also adjust the speed, thereby controlling the rotation speed of the transmission shaft 3. A rotary tillage blade assembly is also arranged on the transmission shaft 3. The number of the rotary tillage blade assemblies is multiple groups, and the rotary tillage blade assemblies are arranged at equal distances along the length direction of the transmission shaft 3. The rotary tillage blade assembly comprises a fixed disk 4 and a rotary tillage blade 5. The fixed disk 4 is connected to the transmission shaft 3, and the fixed disk 4 is connected with The rotary tillage blade 5 is arranged in a circular array around the fixed disk 4 on the outer edge of the fixed disk 4. The rotary tillage blade 5 is in a "T" shape as a whole. The rotary tillage blade 5 is divided into a cutting blade 501 and a soil crushing head 502. Both sides of the cutting blade 501 are blades for cutting straw. The lower end of the rotary tillage blade 5 is a soil crushing head 502. The soil crushing head 502 is in a bladeless state, and the width of the soil crushing head 502 is greater than the width of the cutting blade 501. It is used to replace the disc harrow, so that the lower end of the rotary tillage blade 5 can play a role in crushing soil. When the gear box 2 controls the transmission shaft 3 to rotate, the transmission shaft 3 drives the fixed disk 4 to rotate, so that the rotary tillage blade 5 rotates around the fixed disk 4, thereby realizing the cutting of straw, and the soil crushing head 502 can also break up the soil clods in the soil.

[0024] A tillage shovel is also connected to the frame 1, and the tillage shovel includes an adjustable shovel handle 6 and a shovel head. The adjustable shovel handle 6 is connected to the frame 1, and a knob 7 is provided on the adjustable shovel handle 6. The adjustable shovel handle 6 is divided into two parts with the knob position as the dividing line, and the two parts of the adjustable shovel handle 6 are axially connected at the knob position. The knob 7 can be used to control whether the adjustable shovel 6 can rotate with the axial connection position as the center of a circle, so that the angle of the adjustable shovel handle 6 can be controlled by turning the tightness of the knob 7 to control the distance between the shovel head and the ground, that is, the height of the shovel head can be adjusted by the knob 7. When the height of the shovel head needs to be adjusted, the knob 7 is turned to loosen and pull up the knob 7, thereby manually controlling the angle of the adjustable shovel handle 6, and then adjusting the height of the shovel head. When the height of the shovel head is adjusted to a suitable position, the knob is turned. The knob 7 is inserted and tightened, so that the adjustable shovel handle 6 cannot rotate. The shovel head at the end of the adjustable shovel handle 6 is composed of two shovel surfaces 8, and the two shovel surfaces 8 are axially connected to the end of the adjustable shovel handle 6. The two shovel surfaces 8 can rotate with the adjustable shovel handle 6 as the central axis. A fixing rod 9 is also provided on the adjustable shovel handle 6. A positioning sleeve 10 is sleeved on the fixing rod 9. The positioning sleeve 10 can move back and forth on the fixing rod 9. A plurality of connecting rods 11 are provided on the positioning sleeve 10. The connecting rod 11 is axially connected to the positioning sleeve 10, and the end of the connecting rod 11 is axially connected to the shovel surface 8. When the connecting rod 11 is moved back and forth, the connecting rod 11 will drive the shovel surface 8 to move through the connecting rod 11, thereby changing the angle between the two shovel surfaces 8. The angle between the two shovel surfaces 8 can be adjusted as needed during use.

[0025] A weeding rod 12 is also provided on the frame 1. The weeding rod 12 is provided on the frame 1 and is located at both ends of the transmission shaft 3. The weeding rod 12 is cylindrical. A sleeve 13 is also provided on the cutting blade 501 of the weeding rod 12. A scraper 14 is connected to the sleeve 13. The sleeve 13 is cylindrical and is provided on the weeding rod 12. The outer surface of the sleeve 13 is provided with a scraper 14. The scraper 14 is provided along the length direction of the sleeve 13, and the length of the scraper 14 is equal to the length of the sleeve 13. The number of the scrapers 14 is multiple. A plurality of scrapers 14 are arranged in a circular array around the sleeve 13, and there is a gap between the scraper 14 and the transmission shaft 3. When the transmission shaft 3 rotates, the transmission shaft 3 will not contact the scraper 14. When dirt and weeds are entangled on the transmission shaft 3, the dirt and weeds on the transmission shaft 3 will contact the scraper 14, so that the scraper 14 drives the sleeve 13 to rotate, and at the same time, the dirt and weeds on the transmission shaft 3 are scraped off, thereby preventing the dirt and weeds from entangled with the transmission shaft 3 and causing it to be blocked, thereby avoiding the transmission delay of the transmission shaft 3.

[0026] When in use, first turn the knob 7 on the adjustable shovel handle 6 to loosen it, then turn the shovel head, and by rotating the angle of the adjustable shovel handle 6, control the distance between the shovel head and the ground to achieve the purpose of conditioning the shovel head height. After adjusting the shovel head to an appropriate height, insert and tighten the knob 7 to fix the adjustable shovel handle 6 so that the shovel head cannot rotate around the adjustable shovel handle 6, and then drive the connecting rod 11 to move by moving the positioning sleeve 10, so as to control the angle between the two shovel surfaces 8. After adjusting the shovel surface 8 to an appropriate angle, fix the positioning sleeve 10 so that it cannot move, so that the shovel surface 8 forms a fixed angle, and then start the gear box 2, and drive the transmission shaft 3 to rotate through the gear box 2, so as to control the rotation of the fixed disk 4, so that the fixed disk 4 drives the rotary tillage blade 5 to rotate, so that the cutting edge 501 on the rotary tillage blade 5 can cut the straw. While the cutting blade 501 cuts the straw, the soil crushing head 502 will also break up the soil clods in the soil. In the process of the cutting blade 501 cutting the straw and the soil crushing head 502 breaking up the soil clods, the soil, weeds and straw debris will fly and will be entangled on the transmission shaft 3 as the transmission shaft 3 rotates. When the soil and weeds are entangled on the transmission shaft 3, the weeding rod 12 will clean the transmission shaft 3. First, the soil and weeds entangled on the transmission shaft 3 rotate with the transmission shaft 3, and then the soil and weeds on the transmission shaft 3 will contact the scraper 14, so that the scraper 14 drives the sleeve 13 to rotate around the cutting blade 501 of the weeding rod 12, scrapes and removes the soil on the power shaft, and avoids the situation where the soil and weeds are entangled on the transmission shaft 3 and cause the transmission shaft 3 to be blocked and rotate slowly.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An anti-blocking device for a compound tillage machine, comprising a traction frame and a frame, a gear box and a transmission shaft are arranged on the frame, the transmission shaft is connected to the gear box, the gear box can drive the transmission shaft to rotate, a rotary tiller assembly is arranged on the transmission shaft, the rotary tiller assembly is arranged at equal distances along the length direction of the transmission shaft, and straw can be cut by the rotary tiller assembly, characterized in that: The frame is also provided with a weeding rod, which is located at both ends of the transmission shaft and is cylindrical. A sleeve is provided on the weeding rod. The sleeve is cylindrical and is sleeved on the weeding rod. The sleeve can rotate around the weeding rod. A scraper is provided on the sleeve, and the scraper is arranged in a circular array around the sleeve.

2. The anti-blocking device for a compound tillage machine according to claim 1, characterized in that: The length of the scraper is the same as that of the sleeve, and there is a gap between the scraper and the transmission shaft.

3. The anti-blocking device for a compound tillage machine according to claim 1, characterized in that: The rotary tiller assembly includes a fixed disk and rotary tiller blades. The fixed disk is connected to the transmission shaft. The rotary tiller blades are arranged in a ring array around the fixed disk. The rotary tiller blades are in a "T" shape as a whole.

4. The anti-blocking device for a compound tillage machine according to claim 3, characterized in that: The rotary tillage blade comprises a cutting blade and a soil crushing blade head. Both sides of the cutting blade are blades, the soil crushing blade head is bladeless, and the width of the soil crushing blade head is greater than the width of the cutting blade.

5. The anti-blocking device for a compound tillage machine according to claim 1, characterized in that: The frame is also provided with a tillage shovel, which comprises an adjustable shovel handle and a shovel head. The adjustable shovel handle is connected to the frame, and a knob is provided on the adjustable shovel handle, through which the height of the shovel head can be controlled.

6. The anti-blocking device for a compound tillage machine according to claim 5, characterized in that: The shovel head comprises two shovel surfaces, which are connected to the adjustable shovel handle through a fixed rod, a positioning sleeve is sleeved on the fixed rod, a connecting rod is axially connected to the positioning sleeve, and the positioning sleeve is connected to the shovel surface through the connecting rod.

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