Combined grain combine harvester

Abstract

The invention relates to the field of rice harvesters, in particular to a combined grain combine harvester which comprises a rice harvester body, the rice harvester body comprises a machine body, a plurality of material guiding rolling frames, a plurality of material combing rolling frames and a plurality of material distributing rolling frames are sequentially arranged in the machine body from front to back, and the multiple material combing rolling frames and the multiple material distributing rolling frames are arranged. The bottom of the material guiding rolling frame, the bottom of the material combing rolling frame and the bottom of the material distributing rolling frame are each provided with a bearing frame, the middle of each bearing frame is provided with a screen opening, the screen openings in the bearing frames are sequentially increased from front to back, the material guiding rolling frame, the material combing rolling frame and the material distributing rolling frame each comprise a rotating shaft, and the middle of the periphery of each rotating shaft is fixedly connected with a middle disc. When gas is discharged through a through opening, surrounding rice can be impacted, so that separation of grains and grain stalks can be accelerated, the grains and the grain stalks can be rapidly impacted, and the grains clamped in the crushed grain stalks are impacted out to be separated.

Description

Technical Field

[0001] The invention relates to the field of rice harvesters, in particular to a combined grain harvester. Background Art

[0002] In modern rice harvesting operations, intelligent agricultural power machinery has become the main equipment in agricultural production, among which the combine harvester is the most representative machine of intelligent agricultural power machinery. However, in the threshing process, the technical means of traditional combine harvesters are relatively single and backward. Most of them only rely on simple mechanical beating and rubbing to separate grains from straws. Faced with complex and changeable rice varieties and growth environments, this method seems to be inadequate, resulting in poor separation of grains from straws. Some grains are stuck inside the broken straws, causing serious food waste. At the same time, during the threshing process, the combine harvester relies entirely on mechanical force, making it difficult to improve the threshing efficiency. In addition, the straw is easy to accumulate on the vibrating frame during transportation, hindering the normal transportation of grains and further reducing the efficiency of threshing and collection. Moreover, when the machine is running, rice is very easy to be entangled in key components such as the rotating shaft and the transmission belt assembly. The cleaning work is cumbersome and time-consuming, resulting in frequent equipment shutdowns and maintenance, which greatly affects the continuity and overall progress of the operation. Therefore, we propose a combined grain combine harvester to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a combined grain combine harvester.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a combined grain combine harvester, including a rice harvester, the rice harvester including a body, a material guide roller frame, a material combing roller frame and a material dividing roller frame are sequentially arranged inside the body from front to back, and a plurality of the material combing roller frames and the material dividing roller frames are each provided with a supporting frame at the bottom of the material guide roller frame, the material combing roller frame and the material dividing roller frame, a sieve opening is opened in the middle of the supporting frame, and the sieve opening on each of the supporting frames increases sequentially from front to back, the material guide roller frame, the material combing roller frame and the material dividing roller frame each include a rotating shaft, a middle disk is fixedly connected to the middle of the outer circumference of the rotating shaft, and exhaust holes are uniformly distributed at both ends of the middle disk, and air outlet rollers are arranged on both sides of the middle disk, and the air outlet rollers are rotatably connected to both sides of the middle of the outer circumference of the rotating shaft. Impellers are installed in the inner middle part, and the impellers are rotatably connected to the outer periphery of the rotating shaft. Evenly distributed air outlet holes are opened on the outer periphery of the air outlet roller. A connecting disk is arranged on the side of the air outlet roller away from the middle disk. The connecting disks are fixedly connected to both sides of the outer periphery of the rotating shaft. The connecting disk and the middle disk are connected to the interior of the rotating shaft. Evenly distributed cross bars are fixedly connected to the outer peripheries of the connecting disk and the middle disk. Air guide bins are rotatably connected to both sides of the outer periphery of the cross bars. The air guide bins are connected by connecting pipes. Evenly distributed through openings are opened at the ends of the cross bars. The cross bars are connected to the inside of the connecting disk and the middle disk. Evenly distributed connecting holes are opened on both parts of the outer periphery of the rotating shaft. The connecting holes are arranged on the inner side of the air guide bin. Evenly distributed combing rods are installed on one side of the cross bar on the outer periphery of the combing roller frame.

[0005] Preferably, a top bin is installed in the middle of the top of the body, and a transmission cover is installed at the front and rear parts of the top bin. The lower side of the transmission cover is rotatably connected with evenly distributed rotating shafts, and the rotating shafts are connected through a transmission belt assembly 1. A transmission belt assembly 2 is provided at the outer end of the outermost rotating shaft, and a motor is installed at the other part of the transmission belt assembly 2, and the motor is installed at the top of the transmission cover.

[0006] Preferably, a turntable is fixedly connected to one side of the outer periphery of the rotating shaft close to the top bin, and the turntable is rotatably connected to the lower part of the front and rear walls of the top bin, and a flat material rod is fixedly connected to the end close to the turntable, and the flat material rod is eccentric relative to the turntable, and the flat material rod is arranged at the lower inner side of the top bin, a suction pump is installed on one side of the top of the top bin, a loading channel is installed on the upper part of one end of the top bin, and the loading channel is connected to a material guide cylinder at one end away from the top bin.

[0007] Preferably, a propulsion head is installed at the front part of the body, a cutting knife is installed at the bottom of the propulsion head, a guide head is installed on the lower side of the front end of the propulsion head, the front part of the guide head is provided with evenly distributed openings, a guide frame is arranged inside the guide head, and evenly distributed hooks are fixedly connected to the outer periphery of the guide frame, and the hooks are all arranged on the inner side of the opening on the guide head.

[0008] Preferably, a rotary cutting head is arranged on the upper side of the front end of the propulsion head, and both ends of the rotary cutting head and the fixed shaft in the middle of the guide frame penetrate the two side walls of the propulsion head, and one end of the rotary cutting head and the fixed shaft in the middle of the guide frame are connected to a motor, and the motor is installed on the outer side of the propulsion head.

[0009] Preferably, a vibration frame is provided at the lower part of the combing roller frame and the dividing roller frame, a guide frame is provided at the rear of the vibration frame, a discharge port is provided at the rear of the guide frame, the discharge port is installed at the rear end of the machine body, and the vibration frame and the guide frame are both installed at the lower part of the supporting frame.

[0010] Preferably, both ends of the outer periphery of the rotating shaft penetrate the wall of the machine body, side covers are installed in the middle of both sides of the machine body, a reduction motor is installed on one side of the side cover, one end of the rotating shaft is connected through a transmission assembly, and the front end of the rotating shaft is fixedly connected to the reduction motor.

[0011] Preferably, the air outlet holes are arranged in a spiral shape, an air inlet is opened at one end of the air outlet roller close to the middle disk, a grid is installed inside the air inlet, and the grid is rotatably connected to the rotating shaft.

[0012] Preferably, a motor is installed on the front middle side of the body, a crank rocker mechanism is installed on the motor driving end, the crank rocker mechanism output end is fixedly connected to a traction frame, the other end of the traction frame is rotatably connected to a vibration frame, the vibration frame is arranged in the middle inner side of the body, the bottom of the guide frame is provided with evenly distributed notches, a plurality of cutting blades are arranged on the bottom of the guide frame, the tops of the cutting blades are all arranged on the inner sides of the notches, a material guide cylinder is arranged on the front part of the guide frame, a material guide auger is arranged inside the material guide cylinder, the cutting blades and the middle shaft of the material guide auger are both equipped with motors, and the motors are both installed on one side of the body wall.

[0013] Preferably, an air outlet cylinder assembly is installed in the lower part of the body assembly, a guide frame assembly is arranged inside the air outlet cylinder assembly, a motor is installed at one end of the middle axis of the guide frame assembly, and the motor is installed inside the body assembly, and an air outlet assembly is fixedly connected to the upper rear part of the air outlet cylinder assembly, both sides of the air outlet assembly are connected to the inside of the connecting pipe assembly through a connecting pipe, and the outlet of the air outlet assembly faces the guide cylinder assembly and the guide frame assembly.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. According to the present invention, after the grains enter the top bin, people can start the motor inside the top bin, and the motor can use the transmission belt assembly 2 to drive the rotating shaft on one side to rotate, and the transmission belt assembly 1 meshed with the outer circumference of the rotating shaft can drive each rotating shaft to rotate synchronously, and the rotating shaft can drive the turntable to rotate synchronously. When the turntable rotates, it will drive the flat material rod fixed thereto to rotate synchronously eccentrically, so that the grains inside the top bin can be stirred by the flat material rod, so as to avoid the situation where too much grains accumulate on one side and affect the subsequent feeding, which is beneficial to practical use.

[0015] 2. When threshing rice, part of the airflow inside the air outlet tube can be introduced into the connecting pipe through the connecting pipe, and the airflow can be further introduced into the rest of the air guide bin through the connecting pipe. The airflow inside the air guide bin can enter into each rotating shaft through the connecting hole, and then the airflow can be introduced into the cross bar under the connection of the connecting plate and discharged through the opening on the cross bar. When the gas is discharged through the opening, it will impact the surrounding rice, thereby accelerating the separation of grains and straws, and can quickly impact the grains and straws, and impact the grains stuck in the broken straws to separate them. At the same time, part of the airflow will contact the top of the vibration frame after passing through the support frame, so as to blow up the lighter straws on the top of the vibration frame, thereby blowing down the straws, avoiding excessive falling and accumulation of straws on the top of the vibration frame affecting the transportation of grains, which is beneficial to the concentrated threshing of grains.

[0016] 3. The air flow will be discharged through the exhaust holes on the middle disk, and will enter the inside of the air outlet roller through the air inlet when discharged. The air flow will drive the impeller inside the air outlet roller to rotate, and the impeller can drive the air outlet roller to rotate synchronously. The incoming air flow will be discharged through the air outlet holes on the air outlet roller to form a series of air flow columns. When the air outlet roller is driven to rotate, the continuous air flow column on the periphery can further impact the rice stalks and rice at the bottom. The lighter rice stalks can be blown up, while the heavier grains will remain at the bottom, thereby speeding up the speed at which the grains fall through the support frame and improving the threshing efficiency. At the same time, the air outlet roller can fill the inside of the guide roller, combing roller and dividing roller, thereby preventing rice from being entangled on the rotating shaft and affecting the continuous use of the rice harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front three-dimensional structure of a combined grain combine harvester of the present invention; Figure 2 It is a side view stereoscopic structural schematic diagram of a combined grain combine harvester of the present invention; Figure 3 It is a partial structural schematic diagram of a material guide roller frame, a material combing roller frame and a material distribution roller frame of a combined grain combine harvester of the present invention; Figure 4 It is a schematic diagram of the partial structure of a combined grain combine harvester of the present invention; Figure 5 It is a partial structural schematic diagram of a flat bar of a combined grain combine harvester of the present invention; Figure 6 It is a partial structural schematic diagram of a material distribution roller frame of a combined grain combine harvester of the present invention; Figure 7 It is a partial structural schematic diagram of the middle plate of a combined grain combine harvester of the present invention; Figure 8 The present invention is a schematic diagram of the partial structure of the air outlet roller of a combined grain combine harvester.

[0018] 1. Rice harvester; 101. Machine body; 102. Guide frame; 103. Guide head; 104. Rotary cutting head; 105. Transmission cover; 106. Top bin; 107. Feeding channel; 108. Discharging port; 109. Propelling head; 110. Material guide roller frame; 111. Combing roller frame; 112. Material dividing roller frame; 113. Air guide bin; 114. Connecting pipe; 115. Air inlet; 116. Cross bar; 117. Support frame; 118. Crank rocker mechanism; 119. Traction frame; 120. Drainage frame; 121. Air outlet; 1 22. Air outlet; 123. Material guide cylinder; 124. Cutting disc; 125. Notch; 126. Guide frame; 127. Connecting plate; 128. Vibrating frame; 129. Combing rod; 130. Turntable; 131. Driving belt assembly 1; 132. Driving belt assembly 2; 133. Rotating shaft; 134. Air outlet roller; 135. Air outlet hole; 136. Middle plate; 137. Through port; 138. Connecting hole; 139. Rotating shaft; 140. Exhaust hole; 141. Impeller; 142. Grid; 143. Flat material rod; 144. Side cover. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] like Figure 1-Figure 8A combined grain harvester shown in the figure includes a rice harvester 1, and the rice harvester 1 includes a body 101. A material guide roller frame 110, a combing roller frame 111 and a material distribution roller frame 112 are arranged in sequence from front to back inside the body 101. The combing roller frame 111 and the material distribution roller frame 112 are each provided with a plurality of supporting frames 117. A sieve opening is opened in the middle of the supporting frames 117. The sieve openings on the supporting frames 117 increase in sequence from front to back. The material guide roller frame 110, the combing roller frame 111 and the material distribution roller frame 112 each include a rotating shaft 139. Both ends of the outer periphery of the shaft 139 penetrate the wall of the machine body 101, side covers 144 are installed in the middle of both sides of the machine body 101, a reduction motor is installed on one side of the side cover 144, one end of the rotating shaft 139 is connected through a transmission component, the transmission component includes a transmission sprocket and a transmission chain, the front end of the rotating shaft 139 is fixedly connected to the reduction motor, the middle part of the outer periphery of the rotating shaft 139 is fixedly connected to the middle plate 136, both ends of the middle plate 136 begin to have evenly distributed exhaust holes 140, and both sides of the middle plate 136 are provided with air outlet rollers 134, and the air outlet rollers 134 are rotatably connected to both sides of the middle of the outer periphery of the rotating shaft 139. The impeller 141 is installed in the middle of the inner part, and the impeller 141 is rotatably connected to the outer periphery of the rotating shaft 139. The outer periphery of the air outlet roller 134 is provided with evenly distributed air outlet holes 135, and the air outlet holes 135 are arranged in a spiral shape. The end of the air outlet roller 134 close to the middle plate 136 is provided with an air inlet 115, and a grid 142 is installed inside the air inlet 115, and the grid 142 is rotatably connected to the rotating shaft 139. The air outlet roller 134 is provided with a connecting plate 127 on the side away from the middle plate 136, and the connecting plate 127 is fixedly connected to both sides of the outer periphery of the rotating shaft 139. The connecting plate 127 and the middle plate 136 are connected to the inner periphery of the rotating shaft 139. The connecting plate 127 and the middle plate 136 are connected, and the outer peripheries of the connecting plate 127 and the middle plate 136 are fixedly connected with uniformly distributed cross bars 116, and the outer peripheries of the cross bars 116 are rotatably connected with the air guide bins 113, and the air guide bins 113 are connected through the connecting pipes 114, and the ends of the cross bars 116 are provided with uniformly distributed through openings 137, and the cross bars 116 are connected with the connecting plate 127 and the inside of the middle plate 136, and the outer peripheries of the rotating shaft 139 are provided with uniformly distributed connecting holes 138, and the connecting holes 138 are arranged on the inner side of the air guide bin 113, and the combing rods 129 are installed on one side of the cross bars 116 on the outer periphery of the combing roller frame 111; Furthermore, in a specific implementation, after the rice and the stalks enter the interior of the machine body 101, the rice and the stalks can be guided by the guide roller 110. Under the action of the guide roller 110, the rice and the stalks produce strong friction, collision and rubbing with the support frame 117, so that the stalks can be broken and the ears of rice and the stalks can be initially separated. At the same time, the rice can be guided, and the rice and the stalks can be further transported backwards under the action of the guide roller 110. After that, the rice and the stalks will encounter the combing roller 111. During the rotation of the combing roller 111, the combing rod 129 on the combing roller 111 can comb the rice and the stalks when they are further transported, so that the rice and the stalks can be The rice grains and the straws are guided to the rear in an orderly manner in sequence, and the combing roller frame 111 at the rear can be used to separate the rice grains from the straws. The separated grains can fall through the sieve opening on the bottom supporting frame 117 and fall onto the vibrating frame 128. The rice grains and the straws will further encounter the dividing roller frame 112 backwards, and the rotation of the dividing roller frame 112 can cooperate with the supporting frame 117 at its bottom to further separate the rice grains from the straws. The continuous operation of multiple dividing roller frames 112 can achieve complete threshing, and the rice grains and the broken straws will eventually fall onto the guide frame 126, and the grains and the straws can be guided to flow back through the guide frame 126. When the rice is threshed, part of the airflow inside the air outlet 121 can be introduced into the connecting pipe. The airflow is further introduced into the remaining air guide bins 113 through the connecting pipe 114, and the airflow in the air guide bin 113 can enter the interior of each rotating shaft 139 through the connecting hole 138. Then, the airflow can be introduced into the interior of the cross bar 116 under the connection of the connecting plate 127 and discharged through the opening 137 on the cross bar 116. When the gas is discharged through the opening 137, it will impact the surrounding rice, thereby accelerating the separation of the grains and the rice stalks, and can quickly impact the grains and the rice stalks, impacting the grains stuck in the broken rice stalks to separate them. At the same time, part of the airflow will contact the top of the vibration frame 128 after passing through the support frame 117, so as to achieve the lighter rice on the top of the vibration frame 128. The blowing of the rod can blow the rice straw off, so as to avoid the rice straw on the top of the vibration frame 128 from falling and accumulating too much and affecting the transportation of the grains, which is beneficial to the concentrated threshing of the grains. At the same time, part of the air flow will be discharged through the exhaust hole 140 on the middle plate 136, and the air flow will enter the inside of the air outlet roller 134 through the air inlet 115 when being discharged. The air flow will drive the impeller 141 inside the air outlet roller 134 to rotate, and the air outlet roller 134 can be driven to rotate synchronously through the impeller 141. The incoming air flow will be discharged through the air outlet hole 135 on the air outlet roller 134 to form a series of air flow columns. When the air outlet roller 134 is driven to rotate, the continuous air flow column on the periphery can further impact the rice straw and rice at the bottom, so that the rice straw can be blown up.The grains will remain at the bottom, thereby accelerating the speed at which the grains fall through the support frame 117 and improving the threshing efficiency. At the same time, the air outlet roller 134 can fill the interior of the guide roller frame 110, the combing roller frame 111 and the dividing roller frame 112, thereby preventing the rice from being entangled on the rotating shaft 139 and affecting the continuous use of the rice harvester 1.

[0021] Among them, a propulsion head 109 is installed at the front of the body 101, a cutting knife is installed at the lower part of the propulsion head 109, a guide head 103 is installed at the lower side of the front end of the propulsion head 109, and evenly distributed openings are opened at the front of the guide head 103. A guide frame 102 is arranged inside the guide head 103, and evenly distributed hooks are fixedly connected to the outer periphery of the guide frame 102. The hooks are all arranged on the inner side of the opening on the guide head 103. A rotary cutting head 104 is arranged on the upper side of the front end of the propulsion head 109. Both ends of the rotary cutting head 104 and the fixed shaft in the middle of the guide frame 102 penetrate the two side walls of the propulsion head 109. The rotary cutting head 104 and one end of the fixed shaft in the middle of the guide frame 102 are connected to motors, and the motors are all installed on one side of the outside of the propulsion head 109. Furthermore, in a specific implementation, people can harvest mature rice through the rice harvester 1, and the rice can be pulled by the guide head 103 and the guide frame 102 on the front propulsion head 109, and then the rice stalks can be cut and guided by the rotating rotary cutting head 104, so that the rice can enter the inside of the machine body 101 through the feed port on the propulsion head 109.

[0022] Among them, a vibration frame 128 is arranged at the lower part of the combing roller frame 111 and the dividing roller frame 112, a guide frame 126 is arranged at the rear of the vibration frame 128, a discharge port 108 is arranged at the rear of the guide frame 126, and the discharge port 108 is installed at the rear end of the machine body 101. The vibration frame 128 and the guide frame 126 are both installed at the lower part of the supporting frame 117, and an air outlet cylinder 121 is installed at the lower part of the machine body 101. A guide frame 120 is arranged inside the air outlet cylinder 121, and a motor is installed at one end of the middle axis of the guide frame 120, and the motor is installed inside the machine body 101. An air outlet 122 is fixedly connected to the upper part of the rear side of the air outlet cylinder 121, and both sides of the air outlet 122 are connected with the inside of the connecting pipe 114 through a connecting pipe, and the outlet of the air outlet 122 faces the guide cylinder 123 and the guide frame 126, and the top of the guide cylinder 123 is in an open state; Furthermore, in a specific implementation, the guide frame 120 inside the air outlet tube 121 will be driven by the motor to rotate, thereby drawing in external air and discharging the airflow through the air outlet 122. The discharged airflow can screen the grains and straws, and the airflow can blow up the lighter straws and blow them out of the guide frame 126, so that the straws can be discharged through the discharge port 108, while the heavier grains will fall into the guide tube 123 under the guidance of the guide frame 126, and the guide auger inside the guide tube 123 can transfer the grains to the inside of the feeding channel 107, and then the grains can be introduced into the top bin 106 through the suction pump to realize the storage of the grains.

[0023] Among them, a motor is installed at the front side of the middle part of the body 101, and a crank rocker mechanism 118 is installed at the motor driving end. The crank rocker mechanism 118 includes a crank, a rocker and a connecting rod. The output end of the crank rocker mechanism 118 is fixedly connected to a traction frame 119, and the other end of the traction frame 119 is rotatably connected to a vibration frame 128. The vibration frame 128 is arranged in the middle of the inner side of the body 101. The bottom of the guide frame 126 is provided with evenly distributed notches 125. The bottom of the guide frame 126 is provided with a plurality of cutting blades 124. The tops of the cutting blades 124 are all arranged inside the notches 125. A material guide barrel 123 is arranged at the front of the guide frame 126. A material guide auger is arranged inside the material guide barrel 123. The cutting blades 124 and the middle shaft of the material guide auger are both installed with motors, and the motors are all installed on one side of the wall of the body 101; Furthermore, in a specific implementation, the crank rocker mechanism 118 can be used by the motor to drive the traction frame 119 to swing. When the traction frame 119 swings, it will drive the vibration frame 128 to swing synchronously with a small amplitude. When the vibration frame 128 swings as a whole, the upper grains will be transported backwards step by step.

[0024] Among them, a top bin 106 is installed at the middle of the top of the body 101, and a transmission cover 105 is installed at the front and rear of the top bin 106. The lower side of the transmission cover 105 is rotatably connected with evenly distributed rotating shafts 133. The rotating shafts 133 are connected through a transmission belt assembly 131. The outer end of the outermost rotating shaft 133 is provided with a transmission belt assembly 2 132. The other part of the transmission belt assembly 2 132 is equipped with a motor. The motor is installed at the top of the transmission cover 105. The outer periphery of the rotating shaft 133 is close to the top bin 1 06 is fixedly connected with a turntable 130 on one side, and the turntable 130 is rotatably connected to the lower part of the front and rear walls of the top bin 106, and the end of the turntable 130 close to it is fixedly connected with a flat material rod 143, and the flat material rod 143 is eccentric relative to the turntable 130, and the flat material rod 143 is arranged at the lower inner part of the top bin 106, and a material pump is installed on one side of the top of the top bin 106, and a feeding channel 107 is installed on the upper part of one end of the top bin 106, and the end of the feeding channel 107 away from the top bin 106 is connected with a material guide cylinder 123; Furthermore, in a specific implementation, after the grains enter the top bin 106, people can start the motor inside the top bin 106, and the motor can use the transmission belt assembly 2 132 to drive the rotating shaft 133 on one side to rotate, and the transmission belt assembly 1 131 meshing with the outer periphery of the rotating shaft 133 can drive each rotating shaft 133 to rotate synchronously, and the rotating shaft 133 can drive the turntable 130 to rotate synchronously. When the turntable 130 rotates, it will drive the flat material rod 143 fixed thereto to rotate synchronously eccentrically, so that the flat material rod 143 can be used to stir the grains inside the top bin 106, so as to avoid the situation where too much grain accumulates on one side and affects the subsequent feeding, which is beneficial to practical use.

[0025] Working principle: In actual use, people can harvest mature rice through the rice harvester 1, and the rice can be pulled by the guide head 103 and the guide frame 102 on the front propulsion head 109. Then, the rice stalks can be cut and guided by the rotating rotary cutting head 104, so that the rice can enter the body 101 through the feed port on the propulsion head 109. After the rice and the stalks enter the body 101, the rice and the stalks can be guided by the guide roller 110. Under the action of the guide roller 110, the rice generates strong friction, collision and rubbing with the support frame 117, so that the stalks can be broken and the ears of rice can be initially separated from the stalks. At the same time, the rice can be guided. Under the action of the material guide roller 110, the rice and the straw can be further transported backwards, and then the rice and the straw will encounter the combing roller 111. During the rotation of the combing roller 111, the combing rod 129 on the combing roller 111 can comb the rice and the straw when they are further transported, so that the rice and the straw can be guided to the rear in an orderly manner. At the same time, the rear combing roller 111 can be used to thresh and separate the rice and the straw, and the separated grains can fall through the sieve opening on the bottom support frame 117 and fall onto the vibration frame 128. At the same time, the crank rocker mechanism 118 can be used by the motor to drive the traction frame 119 to swing, and when the traction frame 119 swings, it will drive the vibration frame 128 to The vibration frame 128 swings synchronously with the row with a small amplitude. When the vibration frame 128 swings as a whole, the upper grains will be transported backwards step by step. At the same time, the upper rice and rice stalks will further encounter the dividing roller frame 112 backwards. The rotation of the dividing roller frame 112 can cooperate with the supporting frame 117 at its bottom to further separate the rice and the rice stalks. The continuous operation of multiple dividing roller frames 112 can achieve complete threshing. The rice and the broken rice stalks will eventually fall onto the guide frame 126, and the guide frame 126 can guide the grains and rice stalks to flow back. In this process, the drainage frame 120 inside the air outlet 121 will be driven to rotate by the motor, thereby drawing in external air and discharging the airflow through the air outlet 122. The discharged airflow can thresh the grains and rice stalks The grains are screened, and the lighter grain stalks can be blown up by the airflow and blown out of the guide frame 126, so that the grain stalks can be discharged through the discharge port 108, while the heavier grains will fall into the guide barrel 123 under the guidance of the guide frame 126, and the grains can be transferred to the feeding channel 107 by the guide auger inside the guide barrel 123, and then the grains can be introduced into the top bin 106 by the suction pump to realize the storage of the grains. When the grains enter the top bin 106, people can start the motor inside the top bin 106, and the motor can use the transmission belt assembly 2 132 to drive the rotating shaft 133 on one side to rotate, and the transmission belt assembly 1 131 meshed with the outer periphery of the rotating shaft 133 can drive each rotating shaft 133 to rotate synchronously.The rotating shaft 133 can drive the rotating disk 130 to rotate synchronously. When the rotating disk 130 rotates, it will drive the flat material rod 143 fixed thereto to rotate synchronously eccentrically, so that the flat material rod 143 can stir the grains inside the top bin 106, avoiding the situation that too much grains accumulate on one side and affect the subsequent feeding, which is beneficial to practical use. When threshing rice, part of the airflow inside the air outlet cylinder 121 can be introduced into the connecting pipe 114 through the connecting pipe, and the airflow can be further introduced into the remaining air guide bins 113 through the connecting pipe 114. The airflow inside the air guide bin 113 can enter the interior of each rotating shaft 139 through the connecting hole 138, and then the airflow can be introduced into the interior of the cross bar 116 under the connection of the connecting plate 127 and discharged through the opening 137 on the cross bar 116. When the gas is discharged through the opening 137, it will impact the surrounding rice, thereby accelerating the separation of the grains and the straws, and can quickly impact the grains and the straws, impacting the grains stuck in the broken straws to separate them. At the same time, part of the airflow will connect with the top of the vibration frame 128 after passing through the support frame 117. The vibration frame 128 is touched to blow up the lighter grain straw on the top of the vibration frame 128, so that the grain straw can be blown off, so as to avoid excessive accumulation of grain straw on the top of the vibration frame 128 affecting the transportation of grains, which is beneficial to the concentrated threshing of grains. At the same time, part of the air flow will be discharged through the exhaust hole 140 on the middle plate 136, and the air flow will enter the inside of the air outlet roller 134 through the air inlet 115 when being discharged. The air flow will drive the impeller 141 inside the air outlet roller 134 to rotate, and the impeller 141 can drive the air outlet roller 134 to rotate synchronously, and the incoming air flow will pass through the air outlet roller 134 The air is discharged from the air outlet holes 135 on the top to form a series of air flow columns. When the air outlet roller 134 is driven to rotate, the continuous air flow column on the periphery can further impact the rice stalks and rice at the bottom, so that the rice stalks can be blown up, and the grains will remain at the bottom, thereby accelerating the speed at which the grains fall through the support frame 117 and improving the threshing efficiency. At the same time, the air outlet roller 134 can fill the inside of the guide roller frame 110, the combing roller frame 111 and the dividing roller frame 112, thereby preventing the rice from being entangled on the rotating shaft 139 and affecting the continuous use of the rice harvester 1.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A combined grain harvester, comprising a rice harvester (1), characterized in that: The rice harvester (1) comprises a machine body (101), wherein a material guide roller frame (110), a material combing roller frame (111) and a material dividing roller frame (112) are sequentially arranged inside the machine body (101) from front to back, wherein a plurality of the material combing roller frames (111) and the material dividing roller frames (112) are arranged, and a support frame (117) is arranged at the bottom of each of the material guide roller frames (110), the material combing roller frames (111) and the material dividing roller frames (112), and a sieve opening is opened in the middle of each of the support frames (117), and the sieve opening on each of the support frames (117) increases in size from front to back. The frame (110), the combing roller frame (111) and the material distribution roller frame (112) all include a rotating shaft (139), a middle plate (136) is fixedly connected to the middle of the outer circumference of the rotating shaft (139), both ends of the middle plate (136) begin to have evenly distributed exhaust holes (140), both sides of the middle plate (136) are provided with air outlet rollers (134), the air outlet rollers (134) are rotatably connected to both sides of the middle of the outer circumference of the rotating shaft (139), and the inner middle of the air outlet rollers (134) are installed with impellers (141), and the impellers (141) are rotatably connected to the rotating shaft (139). The outer circumference of the air outlet roller (134) is provided with evenly distributed air outlet holes (135). A connecting plate (127) is provided on one side of the air outlet roller (134) away from the middle plate (136). The connecting plates (127) are fixedly connected to both sides of the outer circumference of the rotating shaft (139). The connecting plates (127) and the middle plate (136) are connected to the inside of the rotating shaft (139). The outer circumferences of the connecting plates (127) and the middle plate (136) are fixedly connected with evenly distributed cross bars (116). Both sides of the outer circumferences of the cross bars (116) are rotatably connected with guide rails. The air bins (113) are connected to each other via connecting pipes (114); the ends of the cross bars (116) are provided with evenly distributed through openings (137); the cross bars (116) are connected to the inside of the connecting disk (127) and the middle disk (136); the two outer circumferences of the rotating shaft (139) are provided with evenly distributed connecting holes (138); the connecting holes (138) are arranged on the inner side of the air bins (113); and evenly distributed combing rods (129) are installed on one side of the cross bars (116) on the outer circumference of the combing roller frame (111).

2. A combined grain harvester according to claim 1, characterized in that: A top bin (106) is installed at the middle of the top of the machine body (101), and a transmission cover (105) is installed at the front and rear of the top bin (106). The lower side of the transmission cover (105) is rotatably connected to evenly distributed rotating shafts (133), and the rotating shafts (133) are connected through a transmission belt assembly 1 (131). A transmission belt assembly 2 (132) is provided at the outer end of the outermost rotating shaft (133), and a motor is installed at the other part of the transmission belt assembly 2 (132). The motor is installed at the top of the transmission cover (105).

3. A combined grain harvester according to claim 2, characterized in that: A turntable (130) is fixedly connected to one side of the outer periphery of the rotating shaft (133) close to the top bin (106), and the turntable (130) is rotatably connected to the lower part of the front and rear walls of the top bin (106). A flat material rod (143) is fixedly connected to the end of the turntable (130) close to the top bin (106), and the flat material rod (143) is eccentric relative to the turntable (130). The flat material rod (143) is arranged at the lower part of the inner side of the top bin (106). A material pump is installed on one side of the top of the top bin (106), and a feeding channel (107) is installed on the upper part of one end of the top bin (106). The end of the feeding channel (107) away from the top bin (106) is connected to a material guide cylinder (123).

4. A combined grain harvester according to claim 1, characterized in that: A propulsion head (109) is installed at the front of the body (101), a cutting knife is installed at the bottom of the propulsion head (109), a guide head (103) is installed at the lower side of the front end of the propulsion head (109), the front of the guide head (103) is provided with evenly distributed openings, a guide frame (102) is arranged inside the guide head (103), and evenly distributed hook claws are fixedly connected to the outer periphery of the guide frame (102), and the hook claws are all arranged on the inner side of the opening on the guide head (103).

5. A combined grain harvester according to claim 4, characterized in that: A rotary cutting head (104) is arranged on the upper inner side of the front end of the propulsion head (109); both ends of the rotary cutting head (104) and the middle fixed shaft of the guide frame (102) penetrate the walls of both sides of the propulsion head (109); one end of the rotary cutting head (104) and the middle fixed shaft of the guide frame (102) are connected to a motor; and the motor is installed on the outer side of the propulsion head (109).

6. A combined grain harvester according to claim 1, characterized in that: A vibration frame (128) is disposed at the bottom of the combing roller frame (111) and the dividing roller frame (112); a guide frame (126) is disposed at the rear of the vibration frame (128); a material discharge port (108) is disposed at the rear of the guide frame (126); the material discharge port (108) is mounted at the rear end of the machine body (101); and the vibration frame (128) and the guide frame (126) are both mounted at the bottom of the supporting frame (117).

7. A combined grain harvester according to claim 1, characterized in that: Both ends of the outer periphery of the rotating shaft (139) penetrate the wall of the machine body (101), side covers (144) are installed in the middle of both sides of the machine body (101), a reduction motor is installed on one side of the inside of the side cover (144), and one end of the rotating shaft (139) is connected through a transmission component, and the front end of the rotating shaft (139) is fixedly connected to the reduction motor.

8. The combined grain harvester according to claim 1, characterized in that: The air outlet holes (135) are all arranged in a spiral shape, and an air inlet (115) is provided at one end of the air outlet roller (134) close to the middle plate (136). A grid (142) is installed inside the air inlet (115), and the grid (142) is rotatably connected to the rotating shaft (139).

9. A combined grain harvester according to claim 6, characterized in that: A motor is installed at the front middle part of the machine body (101); a crank rocker mechanism (118) is installed at the driving end of the motor; a traction frame (119) is fixedly connected to the output end of the crank rocker mechanism (118); the other end of the traction frame (119) is rotatably connected to a vibration frame (128); the vibration frame (128) is arranged at the middle part of the inner side of the machine body (101); the bottom of the guide frame (126) is provided with evenly distributed notches (125); the bottom of the guide frame (126) is provided with a plurality of cutting blades (124); the tops of the cutting blades (124) are all arranged inside the notches (125); a material guide cylinder (123) is arranged at the front part of the guide frame (126); a material guide auger is arranged inside the material guide cylinder (123); the cutting blades (124) and the middle shaft of the material guide auger are both installed with motors; and the motors are both installed on one side of the wall of the machine body (101).

10. The combined grain harvester according to claim 1, characterized in that: An air outlet cylinder (121) is installed at the lower part of the machine body (101), a guide frame (120) is arranged inside the air outlet cylinder (121), a motor is installed at one end of the middle axis of the guide frame (120), and the motor is installed inside the machine body (101). An air outlet (122) is fixedly connected to the upper rear part of the air outlet cylinder (121), both sides of the air outlet (122) are connected to the inside of the connecting pipe (114) through a connecting pipe, and the outlet of the air outlet (122) faces the guide cylinder (123) and the guide frame (126).

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