CN-117694100-B - Air supply mechanism and method for cotton picker head and cotton picker

Abstract

The invention relates to an air supply mechanism and method of a cotton picker head and a cotton picker, wherein the air supply mechanism comprises an air supply channel connected with a fan, an air outlet is arranged at the bottom of the air supply channel, a pressure detection mechanism is arranged at one side of the air supply channel to detect the pressure of cotton at one side of a cotton stripping disc, the pressure detection mechanism is connected with a control system, the air supply channel is also fixedly provided with a jet pipe, the jet pipe is connected with an air compressor, the air compressor is connected with the control system, and the jet pipe is provided with a plurality of air outlets facing the cotton conveying channel.

Inventors

• ZHAO PENGDA
• DUAN BIN
• YANG JIANNING
• WANG YUGANG
• LI ZHANTAO
• WANG XINTING
• GONG YULONG
• JI ZUSHUANG
• LI HUAIKUN
• XING CHAO

Assignees

• 山东天鹅棉业机械股份有限公司
• 新疆天鹅现代农业机械装备有限公司

Dates

Publication Date

20260508

Application Date

20231227

Claims (7)

1. 1. The air supply mechanism of the cotton picker head comprises an air supply channel connected with a fan, an air outlet is arranged at the bottom of the air supply channel, a pressure detection mechanism is arranged on one side of the air supply channel to detect the pressure of cotton on one side of a cotton stripping disc, and the pressure detection mechanism is connected with a control system; the top end of the jet pipe is fixed with the side vertical plate, and the jet pipe is matched with the air supply channel after being bent for a section and is fixedly connected with the air supply channel through a plurality of fixing frames; After detecting that the pressure of the blocked cotton at one side of the cotton removing disc exceeds a set value, the pressure detecting mechanism sends a signal to the control system, the control system controls the air compressor to work, and the blocked cotton is blown into the cotton conveying channel by forming jet flow to the blocked cotton through the jet pipe and the air outlet nozzle; The pressure detection mechanism comprises a first detection plate and a second detection plate positioned on the inner side of the first detection plate, the first detection plate and the second detection plate are fixed with the air supply channel and have a gap with a set distance, and the first detection plate and the second detection plate are connected into a detection circuit of the control system; The first detection plate can deform and contact with the second detection plate after the cotton pressure at one side of the cotton stripping plate exceeds a set value, so as to conduct a detection line of the control system; the air outlet nozzles are arranged in three, wherein the uppermost air outlet nozzle is arranged at a set acute angle with the axis of the jet pipe and downwards, and the axes of the air outlet nozzles at the middle part and the bottom are arranged perpendicular to the axis of the jet pipe.
2. 2. A blowing mechanism for a cotton picker head as defined in claim 1, wherein said set acute angle is 30 ° to 90 °.
3. 3. The air supply mechanism of a cotton picker head according to claim 1 wherein said air outlet is of a conical configuration having an air inlet end with an area greater than an air outlet end to increase jet velocity.
4. 4. The air supply mechanism of a cotton picker head according to claim 1 wherein the bottom end of the air supply channel is fixed to the bottom plate, the top end is fixed to a side riser, the side riser is fixed to a hanging upright, and the hanging upright is provided with a fixing mechanism for mounting on the cotton picker.
5. 5. The air supply mechanism of a cotton picker head according to claim 4 wherein said securing mechanism comprises a pulley mounted on the top of the hanging column, and a locating pin assembly slidably connected to the side riser is provided below the pulley.
6. 6. A method of an air supply mechanism of a cotton picker head according to any one of claims 1 to 5, wherein a fan supplies air into an air supply channel, an air outlet of the air supply channel supplies cotton on one side of a cotton stripping plate into a cotton conveying channel through wind power, a pressure detection mechanism detects the pressure of the blocked cotton on one side of the cotton stripping plate in real time, a signal is sent to a control system when the detected pressure is larger than a set value, the control system controls an air compressor to work, a jet pipe and an air outlet nozzle generate jet flow, and the cotton blocked on one side of the cotton stripping plate is blown into the cotton conveying channel.
7. 7. A cotton picker provided with an air supply mechanism of a cotton picker head according to any one of claims 1 to 5.

Description

Air supply mechanism and method for cotton picker head and cotton picker Technical Field The invention relates to the technical field of agricultural machinery, in particular to an air supply mechanism and method of a cotton picker head and a cotton picker. Background The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. The air conveying system is a key system on the cotton picker and is used for blowing cotton removed by the cotton removing disc to a cotton conveying channel and further conveying the cotton to a cotton collecting box to finish the cotton picking operation. An air outlet of the traditional air delivery system is arranged at a position close to a picking head bottom plate, so that cotton blocked in the picking head and higher than the air outlet cannot be removed, and the picking head is blocked. The cotton picking head is blocked, so that the rotation resistance of the cotton picking disc is increased, the friction temperature is increased, fire hidden danger is generated, the picking performance is seriously affected, and great potential safety hazard is generated. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide an air supply mechanism and method for a cotton picker head and the cotton picker, so that the occurrence of the condition of head blockage of the cotton picker head is avoided. In order to achieve the above object, the present invention is realized by the following technical scheme: In a first aspect, an embodiment of the present invention provides an air supply mechanism of a cotton picker head, including an air supply channel connected with a fan, an air outlet is provided at the bottom of the air supply channel, a pressure detection mechanism is provided at one side of the air supply channel to detect the pressure of cotton at one side of a cotton stripper plate, the pressure detection mechanism is connected with a control system, the air supply channel is further fixed with a jet pipe, the jet pipe is connected with an air compressor, the air compressor is connected with the control system, the jet pipe is provided with a plurality of air outlet nozzles facing the cotton delivery channel to blow the cotton blocked at one side of the cotton stripper plate into the cotton delivery channel; After the pressure detection mechanism detects that the pressure of the blocked cotton at one side of the cotton removing disc exceeds a set value, a signal is sent to the control system, the control system controls the air compressor to work, jet flow is formed on the blocked cotton by utilizing the jet pipe and the air outlet nozzle, and the blocked cotton is blown into the cotton conveying channel. Optionally, the air outlet nozzles are arranged in a plurality, and the air outlet nozzles are arranged along the axial direction of the jet pipe. Optionally, the air outlet nozzles are three, wherein the air outlet nozzle positioned at the uppermost part is arranged at a set acute angle and downwards with the axis of the jet pipe, and the axes of the air outlet nozzles positioned at the middle part and the bottom are arranged perpendicular to the axis of the jet pipe. Optionally, the set acute angle is 30 ° -90 °. Optionally, the tuyere adopts a conical structure, and the area of the air inlet end is larger than that of the air outlet end so as to increase the jet flow speed. Optionally, the bottom of air supply passageway is fixed with the bottom plate, and the top is fixed with the side riser, and the side riser is fixed with hanging the stand, hangs the stand and is equipped with fixed establishment in order to realize the installation on cotton picker, and the top and the side riser of jet pipe are fixed, and the jet pipe is after one section is bent, cooperatees with air supply passageway to through a plurality of mounts and air supply passageway fixed connection. Optionally, the fixing mechanism comprises a pulley arranged at the top of the suspension upright, and a locating pin assembly which is connected with the side upright in a sliding way is arranged below the pulley. Optionally, the pressure detection mechanism includes a first detection plate and a second detection plate located inside the first detection plate, the first detection plate and the second detection plate are both fixed with the air supply channel and have a gap with a set distance therebetween, and the first detection plate and the second detection plate are connected into a detection circuit of the control system; the first detection plate can deform and contact with the second detection plate after the cotton pressure at one side of the cotton stripping plate exceeds a set value, and then a detection circuit of the control system is conducted. In a second aspect, embodiments of the present invention provide a method of an air supply mechanism for a cotton picker head: The fan