CN2563908Y - Device for recovering straw - Google Patents

Abstract

A straw recycling device, comprising a front roller knife, a crushing roller knife, and a casing, the shaft of the front roller knife is rotatably supported on both sides of the front end of the casing, and the crushing roller knife is immediately behind the front roller knife and is supported on the casing in parallel rotation On both sides, there is a transmission pair outside the casing connected to the front roller cutter shaft and the crushing roller cutter shaft. There is a feeding auger parallel to it behind the crushing roller cutter, and there is a feeding auger at one end of the auger. fan. The feeding auger of the utility model sends the crushed straw to the fan at one end, and the fan blows out the crushed straw, which can be sent to the charging car by a pipeline to realize the recycling of the straw. In addition, the sharp fixed knife at the grinding roller knife and the Y-shaped moving knife head cross each other to cut and grind, which can significantly reduce power consumption.

Description

Straw recovery device

technical field

The utility model relates to agricultural machinery, in particular to a straw recycling device, which is used for crushing and recycling straw when harvesting straw-like crops.

Background technique

Existing a class of stalk returning machines can only scatter the stalks to the field after being pulverized, and cannot recycle, which is a kind of waste for the crop stalks that can be used as fodder for livestock or other purposes such as making low. In addition, there is no fixed knife in the crushing device of this stalk returning machine, so the power consumed during crushing is relatively large, and the crushing effect is poor.

Contents of the invention

The purpose of this utility model is exactly to provide a kind of stalk recovery device that power consumption is little, can recycle stalk.

The technical scheme of the utility model is: comprising a front roller knife, a crushing roller knife, and a casing, the front roller knife shaft is rotatably supported on both sides of the front end of the casing, and the crushing roller knife is immediately behind the front roller knife and is parallelly rotated and supported on the machine On both sides of the casing, there is a transmission pair outside the casing connected to the front roller cutter shaft and the crushing roller cutter shaft. There is a feeding auger parallel to it behind the crushing roller cutter. At one end of the auger, there is a Feed fan.

The feeding auger is composed of a cylindrical casing, a spiral piece and a shaft, the casing is connected with the casing as a whole, and there is an axial feeding port on the front side adjacent to the crushing roller knife. The spiral piece is connected on the shaft, and the two ends of the shaft are rotatably supported on the two ends of the casing, and one end of the shaft passes through the casing to connect with the transmission pair.

The feeding fan is of a centrifugal type, and its impeller shaft is a hollow shaft sleeved outside the shaft of the auger. One end of the impeller shaft goes out of the casing and is connected to the transmission pair, and the other end is rotationally connected to the end of the auger casing. .

The front roller cutter is composed of a hollow shaft and a plurality of cutting knives connected to the surface of the shaft.

The crushing roller cutter is composed of a hollow shaft and a plurality of cutter heads connected to the shaft.

The cutter head is a Y-shaped blade, the lower end of which is vertically connected to the surface of the hollow shaft, and a cutter head is arranged every 90° in the radial direction of the hollow shaft, and is opposite to the middle of the hollow shaft in the axial direction. Spiral distribution of the direction of rotation; several rows of sharp fixed knives corresponding to the middle position of the above-mentioned Y-shaped blade are arranged on the casing adjacent to the crushing roller knife.

The transmission pair includes a gearbox, a transmission shaft, a left transmission assembly, and a right transmission assembly. The transmission is connected above the front end of the casing, and a transmission shaft is output on each of its left and right sides, and its outer ends pass through the The left and right transmission components are in drive connection with the feeding auger shaft, the fan shaft, the front roller cutter shaft and the crushing roller cutter shaft.

The left transmission assembly is composed of two driving wheels connected to the outer ends of the left transmission shaft, a driven wheel connected to the feeding auger shaft and the fan shaft, and a pair of driving wheels respectively connected between each pair of driving wheels and the driven wheel. Consists of a transmission belt; the right transmission assembly is composed of two driving sprockets connected to the outer end of the right transmission shaft, a passive sprocket respectively connected to the front roller cutter shaft and the crushing roller cutter shaft, and two pairs of driving and The chain between driven sprockets constitutes.

The feeding auger of the utility model sends the crushed stalks to the blower fan at one end, blows out the broken stalks by the blower fan, and sends them to the charging car through pipelines to realize the recovery of stalks. In addition, the sharp fixed knife at the grinding roller knife and the Y-shaped moving knife head cross each other to cut and grind, which can significantly reduce power consumption.

Description of drawings

Fig. 1 is the top view of the utility model;

Fig. 2 is the bottom view of Fig. 1;

Fig. 3 is a cross-sectional view along line A-A of Fig. 2 .

Detailed ways

Referring to Fig. 1-Fig. 3, the utility model includes a front roller knife 1, a crushing roller knife 2, a feeding auger 3, a feeding fan 4, and a casing 5, and the shaft of the front roller knife 1 is supported on both sides of the front end of the casing 5 , the crushing roller knife 2 is next to the front roller knife 1 and parallel to it, its shaft is also rotatably supported on both sides of the casing 5, and a transmission pair 6 is connected to the shaft of the front roller knife 1 and the crushing roller outside the casing 5 On the shaft of the roller cutter 2, there is a feeding auger 3 parallel thereto at the back of the pulverizing roller cutter 2, and a feeding fan 4 is arranged at one end of the auger 3.

The feeding auger 3 is composed of a cylindrical casing 31, a spiral piece 32 and a shaft 33, the casing 31 is connected with the casing 5, and there is a shaft along the front side of the crushing roller knife 2. To the feed inlet 34, the spiral piece 32 is connected on the shaft 33, and the two ends of the shaft 33 are rotatably supported on the two ends of the casing 31, and one end passes through the casing 31 and is connected with the transmission pair 6.

The feeding fan 4 is a centrifugal type, and its impeller shaft 41 is a hollow shaft sleeved outside the shaft 33 of the auger, with a bearing between the two. One end of the impeller shaft 41 passes through the casing 31 and is connected with the transmission pair 6 .

The front roller cutter 1 is composed of a hollow shaft 11 and a plurality of cutting knives 12 connected to the surface of the shaft.

The crushing roller cutter 2 is composed of a hollow shaft 21 and a plurality of cutter heads 22 connected to the shaft.

The cutter head 22 is a Y-shaped blade, and one is set every 90° in the radial direction on the hollow shaft 21, and is spirally distributed in the opposite helical direction with the middle as the boundary in the axial direction, which can avoid throwing the crushed stalk to Two ends and can not enter feeding auger 3. A fixed knife 7 corresponding to the middle position of the above-mentioned Y-shaped blade is arranged on the inner side of the casing 5 adjacent to the crushing roller knife 2 . Several rows can be arranged, and its axial position corresponds to the middle of each cutter head 22 on the crushing roller knife 2, so that when the crushing roller cutter 2 rotates, each cutter head 22 can intersect with the fixed knife 7 to improve the crushing efficiency. efficiency. Fixed knife 7 can adopt the cutter head on the existing wheat harvester.

The transmission pair 6 includes a gearbox 61, left and right transmission shafts 62 and 63, a left transmission assembly 64, and a right transmission assembly 65. The transmission gearbox 61 is connected above the front end of the casing 5, and each of its left and right sides outputs a transmission Shaft 62,63, its outer end is connected with the axle of feeding auger 3, the axle of blower fan 4 and the axle drive of front roller knife 1 and pulverizing roller knife 2 through described left and right transmission assembly 64,65 respectively.

The left drive assembly 64 is composed of two driving wheels A1 and A2 connected to the outer end of the left drive shaft 62, driven wheels B1 and B2 connected to the shaft of the feeding auger 3 and the shaft of the blower fan 4, and respectively The transmission belts C1 and C2 connected between the driving wheel and the driven wheel A1 and B1, A2 and B2 constitute; the right transmission assembly 65 is composed of two driving sprockets D1 and D2 at the outer end of the right transmission shaft 63, respectively The driven sprockets E1 and E2 connected on the shaft of the front roller cutter 1 and the crushing roller cutter 2 and the chains F1 and F2 connected between the two pairs of driving and driven sprockets D1 and E1, D2 and E2 constitute.

The utility model is connected with the traction motor vehicle through the connecting rod 8 at the front end of the casing 5 when in use, and the front input shaft of the gearbox 61 is connected with the power output shaft of the motor vehicle. The front roller cutter 1 shown in Fig. Roller cutter 2, feeding auger 3 and blower fan 4 all rotate clockwise. The front roller knife 1 shovels the crop stalks and rolls them into the crushing roller knife 2 at the back, which is chopped by the relative action of the high-speed rotating Y-shaped cutter head 22 and the fixed knife 7, and more than 80% of the chopped stalks are brought into the back In the feeding auger 3, it is sent into the fan 4 at one end, and blown out by the fan 4 and sent to the charging car. Finish straw recovery work.

Claims (8)

1, a kind of straw retracting device, comprise preliminary roller cutter, pulverization roller cutter, casing, preliminary roller cutter shaft rotating support is in the both sides of casing front end, the pulverization roller cutter be close to after the preliminary roller cutter and rotating support in parallel in the casing both sides, outside casing, there is transmission to be connected on described preliminary roller cutter shaft and the pulverization roller cutter shaft, it is characterized in that: a feeding auger in parallel is arranged in the back of described pulverization roller cutter, one feeding fan is arranged at an end of this auger.

2, straw retracting device according to claim 1, it is characterized in that: described feeding auger is made of cylindrical housing, flight and axle, shell and described casing are connected as a single entity, one vertically charging aperture is arranged in its front side that is close to described pulverization roller cutter, flight is connected on the axle, this two ends rotating support is at the shell two ends, and the one end passes shell and is connected with described transmission.

3, straw retracting device according to claim 1, it is characterized in that: described feeding fan is centrifugal, its impeller shaft is a hollow shaft housing outside the axle of described auger, and an end of this impeller shaft passes shell and is connected with described transmission, and the other end and auger outer casing end are rotationally connected.

4, straw retracting device according to claim 1 is characterized in that: described preliminary roller cutter is made of quill shaft and a plurality of cutting knifes of being connected in this surface.

5, straw retracting device according to claim 1 is characterized in that: described pulverization roller cutter is made of quill shaft and a plurality of cutter heads of being connected on this.

6, straw retracting device according to claim 5, it is characterized in that: described cutter head is a Y shape blade, its lower end and described quill shaft vertical connection of surface, radially per 90 ° at described quill shaft are provided with a cutter head, and in the axial direction in the middle of the quill shaft to be the spirality distribution that the boundary is opposite rotation direction; The casing adjacent with this pulverization roller cutter is provided with the sharp stationary knife of number row corresponding to above-mentioned Y shape blade centre position.

7, according to any one described straw retracting device of claim 1 to 6, it is characterized in that: described transmission comprises gearbox, power transmission shaft, Left Drive assembly, right transmission component, gearbox is connected in described casing front end top, it each side exports a power transmission shaft, and its outer end is in transmission connection by described left and right transmission component and feeding screw-conveyer-shaft, blower fan axle and preliminary roller cutter shaft and pulverization roller cutter shaft respectively.

8, straw retracting device according to claim 7 is characterized in that: described Left Drive assembly by two driving wheels that are connected described Left Drive axle outer end, be connected the follower on described feeding screw-conveyer-shaft and the blower fan axle and the driving-belt that is connected between every pair of driving wheel and the follower constitutes; Described right transmission component by two drive sprockets that are connected described right power transmission shaft outer end, be connected on preliminary roller cutter shaft and the pulverization roller cutter shaft by movable sprocket and be connected two pairs of actives and constituted by the chain between the movable sprocket.

Images