CN107820847B

CN107820847B - Electric tea-leaf picker cutter

Info

Publication number: CN107820847B
Application number: CN201711061563.1A
Authority: CN
Inventors: 吴伟斌; 洪添胜; 宋淑然; 李震; 赵新; 王玉兴; 孙道宗; 付正德; 张震邦; 李泽艺; 陈理; 黄家曦
Original assignee: South China Agricultural University
Current assignee: South China Agricultural University
Priority date: 2017-11-02
Filing date: 2017-11-02
Publication date: 2020-01-17
Anticipated expiration: 2037-11-02
Also published as: CN107820847A

Abstract

The invention relates to a cutter of an electric tea plucking machine, which comprises a shell, a driving component, a transmission component, a guide component, a cutter sleeve and a blade, wherein the driving component is arranged on the shell; the blade is a strip-shaped sheet-shaped blade, and the blade is bent into a micro arc shape in the thickness direction of the blade; the number of the blades is two, the blades are arranged on the left side and the right side of the knife sleeve, the two sides of the knife sleeve are arranged into a micro-arc shape corresponding to the blades, and each blade slides relative to the knife sleeve through a group of guide assemblies; the knife sleeve is relatively fixed with the shell, and the group of driving components drive one blade to cut in a reciprocating mode relative to the knife sleeve through the group of transmission components. The invention improves the shearing efficiency, reduces the time cost and the labor cost, and belongs to the technical field of agricultural harvesting machinery.

Description

Electric tea-leaf picker cutter

Technical Field

The invention relates to agricultural harvesting machinery, in particular to a cutter of an electric tea-leaf picker.

Background

The tea plucking machine is the earliest researched tea garden machine in China, the research results are more, and the technology is relatively mature. In addition, although the fuel agricultural machinery has large power, the fuel agricultural machinery also has the defects of large volume, large mass, small working space and the like; the electric agricultural machine is more compact in design, convenient to use and small and exquisite, is very suitable for hills, mountains and greenhouses, and therefore adopts the motor as a power source. The tea tree is oval in shape, and the tea leaves are more and different in length direction, so that the tea leaves are difficult to cut from the leaf stalks, and the tea leaves and the cutter of the tea plucking machine have a certain relation.

By understanding the current research situation of tea plucking machines at home and abroad, developed countries such as Japan, Australia and the like complete tea plucking mechanization, and the development of the domestic tea plucking machines is slower. Because the electric tea plucking machine plays an important role in the process of plucking tea leaves, the design requirement of the cutter is more urgent especially when people have demands for high-quality tea leaves.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention aims to: provides an electric tea-picking machine cutter with better tea-picking effect.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electric tea plucking machine cutter comprises a shell, a driving component, a transmission component, a guide component, a cutter sleeve and a blade; the blade is a strip-shaped sheet-shaped blade, and the blade is bent into a micro arc shape in the thickness direction of the blade; the number of the blades is two, the blades are arranged on the left side and the right side of the knife sleeve, the two sides of the knife sleeve are arranged into a micro-arc shape corresponding to the blades, and each blade slides relative to the knife sleeve through a group of guide assemblies; the knife sleeve is relatively fixed with the shell, and the group of driving components drive one blade to cut in a reciprocating mode relative to the knife sleeve through the group of transmission components.

The driving component is a motor, the shell is a motor shell, and the transmission component is a crank sliding block mechanism; the guide assembly comprises a guide pin and a guide groove, the guide groove is formed in the blade, and the guide pin is fixed on the side face of the knife sleeve; the motor drives the crank of the crank-slider mechanism to rotate, the slider of the crank-slider mechanism is fixed with the blade, and the blade reciprocates to perform cutting motion relative to the knife sleeve and the guide pin under the action of the guide groove.

The guide way is the bar groove, sets up a plurality of bar grooves on a slice blade, and is corresponding, every side of knife pouch all sets up the uide pin with the bar groove one-to-one.

The cutter sleeve is a semi-open type sleeve body, the cutter sleeve is rectangular in the left-view or right-view direction, an opening is formed in the rear end of the cutter sleeve, and cutter teeth of the blade are located at the front end of the cutter sleeve.

The crank-slider mechanism comprises a base, a crank, a connecting rod and a slider which are sequentially connected in a rotating manner, and the base and the shell are relatively fixed.

The front end of the blade is provided with a row of cutter teeth, the length of the cutter teeth is 10.90mm, and the gap between the cutter teeth is 13.81 mm.

The material of the knife sleeve and the knife blade is stainless steel.

When one blade is in one extreme position, the other blade is in the other extreme position.

And oil guide channels which are communicated with each other are arranged between the two blades and the cutter sleeve.

The blade is bent into a slight arc with an arc of 0.307.

In summary, the present invention has the following advantages:

1. the tea leaf picking machine adopts a reciprocating cutting mode, the two knives perform reciprocating cutting, and meanwhile, due to the bending design of the blades, the tea leaf picking machine is more attached to the appearance of a tea tree, the bending and breaking principle can be fully utilized, and the tea leaf picking convenience is easy to realize. Compared with other cutting modes, such as a hook cutter cutting type tea plucker, a spiral rolling type tea plucker and the like, the reciprocating type cutting tea plucker has better picking quality, ensures the tea quality and ensures the tea integrity rate to be 60-70%. The shearing efficiency is improved, and the time cost and the labor cost are reduced.

2. Simple structure, the tea grower of being convenient for dismantles installation and maintenance.

3. The cutting machine can cut in a certain specific direction, thereby reducing the occurrence frequency of repeated cutting and improving the cutting efficiency under the condition of minimum use.

4. The blade is made of high-quality stainless steel, so that the blade is rustproof and easy to clean, and the blade is not easy to break due to corrosion inside the blade; in addition, the blade is hard enough and is not easy to be broken.

5. Because the blade transversely cuts at a high speed when the electric tea plucking machine works normally, the blade is easy to generate vibration with larger frequency, the blade is arranged on the cutter sleeve and can transmit most of vibration frequency to the cutter sleeve, the cutter sleeve plays a good role in buffering, the strong vibration damage generated by high-speed motion is reduced, and the normal use of the blade is ensured, so that the cutter sleeve plays a good role in protecting.

6. The tail end of the cutter sleeve is fixed on the motor shell and is integrated with the electric tea plucking machine, so that the cutter is more stable, and the operation is safer.

7. The blade adopts crooked design, increases the shear plane, raises the efficiency.

8. The knife edge is changed to be small, the knife teeth are short teeth and dense teeth, the tooth surface is sharp, and the shearing frequency of the tea leaves is increased; the blade clearance ensures the tea quality.

9. The oil guide channel is used for lubricating and is convenient to maintain.

Drawings

Fig. 1 is a schematic structural diagram of the present invention, not showing the driving assembly.

Fig. 2 is a schematic view of one of the blades.

Fig. 3 is a bottom view of fig. 2.

Fig. 4 is a left side view of fig. 2.

Fig. 5 is a schematic view of a knife pouch.

Fig. 6 is a bottom view of fig. 5.

Fig. 7 is a left side view of fig. 5.

Wherein, 1 is the base, 2 is the crank, 3 is the connecting rod, 4 is the slider, 5 is the sword tooth of blade, 6 is the sword cover, 7 is the blade, 8 is the uide pin, 9 is the guide way.

Detailed Description

The present invention will be described in further detail below.

An electric tea plucking machine cutter comprises a shell, a driving assembly, a transmission assembly, a guide assembly, a cutter sleeve and a blade.

The driving component is a motor, and the shell is a motor shell.

The transmission component is a crank sliding block mechanism; the crank-slider mechanism comprises a base, a crank, a connecting rod and a slider which are sequentially connected in a rotating manner, and the base and the shell are relatively fixed. The motor drives the crank to rotate around the base, and the sliding block translates under the action of the connecting rod, so that the sliding block drives the blade to translate.

The guide assembly comprises a guide pin and a guide groove, the guide groove is formed in the blade, and the guide pin is fixed on the side face of the knife sleeve; the guide way is the bar groove, sets up nine bar grooves on a slice blade in order to lighten weight, and is corresponding, and every side of knife pouch all sets up the uide pin with the bar groove one-to-one. The length of the strip-shaped groove is the reciprocating stroke of the blade. The blade reciprocates relative to the knife sleeve to cut under the action of the guide pin and the guide groove.

The knife sleeve is a half-open type sleeve body to reduce weight, the knife sleeve is rectangular in the left-view or right-view direction, an opening is formed in the rear end of the knife sleeve to facilitate installation of a blade, and the knife teeth of the blade are located at the front end of the knife sleeve.

The blade is a strip-shaped sheet-shaped blade, and the blade is bent into a micro arc shape in the thickness direction of the blade; the number of the blades is two, the blades are arranged on the left side and the right side of the knife sleeve, the two sides of the knife sleeve are arranged into a micro-arc shape corresponding to the blades, and each blade slides relative to the knife sleeve through a group of guide assemblies; the knife sleeve is relatively fixed with the shell, and the group of driving components drive one blade to reciprocate relative to the knife sleeve to perform cutting motion through the group of transmission components. The front end of the blade is provided with a row of cutter teeth, the length of the cutter teeth is 10.90mm, and the gap between the cutter teeth is 13.81 mm. The blade is bent into a slight arc with an arc of 0.307. The two blades are arranged in parallel.

The material of the knife sleeve and the knife blade is stainless steel.

When the cutting tool is used, the motor drives the blade to perform reciprocating translation cutting relative to the cutter sleeve under the guiding action of the guide pin and the guide groove through the crank slider mechanism; when one blade is located at one extreme position, the other blade is located at the other extreme position, namely, the two cranks corresponding to the two blades have phase difference, so that the two blades cut alternately.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. The utility model provides an electronic tea-leaf picker cutter which characterized in that: comprises a shell, a driving component, a transmission component, a guide component, a knife sleeve and a blade; the blade is a strip-shaped sheet-shaped blade, and the blade is bent into a micro arc shape in the thickness direction of the blade; the number of the blades is two, the blades are arranged on the left side and the right side of the knife sleeve, the two sides of the knife sleeve are arranged into a micro-arc shape corresponding to the blades, and each blade slides relative to the knife sleeve through a group of guide assemblies; the cutter sleeve is relatively fixed with the shell, and the group of driving components drive one blade to cut in a reciprocating manner relative to the cutter sleeve through the group of transmission components; the knife sheath is a half-open type sheath body.

2. An electric tea plucker knife as defined in claim 1, wherein: the driving component is a motor, the shell is a motor shell, and the transmission component is a crank sliding block mechanism; the guide assembly comprises a guide pin and a guide groove, the guide groove is formed in the blade, and the guide pin is fixed on the side face of the knife sleeve; the motor drives the crank of the crank-slider mechanism to rotate, the slider of the crank-slider mechanism is fixed with the blade, and the blade reciprocates to perform cutting motion relative to the knife sleeve and the guide pin under the action of the guide groove.

3. An electric tea plucker knife as defined in claim 2, wherein: the guide way is the bar groove, sets up a plurality of bar grooves on a slice blade, and is corresponding, every side of knife pouch all sets up the uide pin with the bar groove one-to-one.

4. An electric tea plucker knife as defined in claim 2, wherein: the cutter sleeve is rectangular in the left-view or right-view direction, an opening is formed in the rear end of the cutter sleeve, and cutter teeth of the blade are located at the front end of the cutter sleeve.

5. An electric tea plucker knife as defined in claim 2, wherein: the crank-slider mechanism comprises a base, a crank, a connecting rod and a slider which are sequentially connected in a rotating manner, and the base and the shell are relatively fixed.

6. An electric tea plucker knife as defined in claim 1, wherein: the front end of the blade is provided with a row of cutter teeth, the length of the cutter teeth is 10.90mm, and the gap between the cutter teeth is 13.81 mm.

7. An electric tea plucker knife as defined in claim 1, wherein: the material of the knife sleeve and the knife blade is stainless steel.

8. An electric tea plucker knife as defined in claim 1, wherein: when one blade is in one extreme position, the other blade is in the other extreme position.

9. An electric tea plucker knife as defined in claim 1, wherein: and oil guide channels which are communicated with each other are arranged between the two blades and the cutter sleeve.

10. An electric tea plucker knife as defined in claim 1, wherein: the blade is bent into a slight arc with an arc of 0.307.