CN106688439B

CN106688439B - Medlar picking machine

Info

Publication number: CN106688439B
Application number: CN201611127720.XA
Authority: CN
Inventors: 王平
Original assignee: Ningxia Academy of Agriculture and Forestry Sciences
Current assignee: Ningxia Academy of Agriculture and Forestry Sciences
Priority date: 2016-12-09
Filing date: 2016-12-09
Publication date: 2022-12-13
Anticipated expiration: 2036-12-09
Also published as: CN106688439A

Abstract

The wolfberry picking machine comprises a power supply, a driving motor, a transmission device, a picking roller mechanism, a picking machine shell and a gear carrier, wherein the power supply is electrically connected with the driving motor, a rotating shaft of the driving motor is fixedly connected with one end of the transmission device, the other end of the transmission device is detachably connected with the picking roller mechanism, the driving motor and the transmission device are arranged on the gear carrier, the gear carrier is connected with the picking machine shell, the upper end of the picking machine shell is open, and a discharge port is formed in the lower end of the picking machine shell. The transmission device, the picking roller mechanism and the picking machine shell are detachable, so that a user can clean or replace parts conveniently; the spacing of the picking roller mechanisms is adjustable, so that the picking requirements of Chinese wolfberry fruits of different sizes can be met; the wolfberry picking machine is provided with the picking roller baffle, so that picking personnel can operate the wolfberry picking machine at multiple angles to pick fruits right below, on the side and on the upper side of a branch.

Description

Medlar picking machine

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a wolfberry picking machine.

Background

The medlar is a rare traditional Chinese medicine and is a well-known good health-care nourishing product. Along with the development of social economy, people pay more and more attention to self health and health preservation, the demand of the medlar is increased, and the planting area is enlarged year by year.

Lycium chinense is mainly distributed in Ningxia, gansu and Qinghai areas. The current planting area is about 700 to ten thousand acres. The medlar belongs to shrubs and has multiple branches, and the blossoming, fruiting and maturation of the same medlar tree are usually carried out at the same time. The ripe Chinese wolfberry is generally harvested once in about 6 days, only ripe red fruits can be harvested, green fruits, flowers and leaves cannot be damaged, branches and tree bodies cannot be damaged, and otherwise, the harvesting of the next crop is influenced, and the income is influenced. Therefore, the special harvesting requirement of the medlar determines that the medlar can only be harvested by adopting a manual picking mode all the time. The problem of 'labor waste' caused by picking of the Chinese wolfberry is increasingly prominent every year. At present, the problem becomes a bottleneck restricting the development of the medlar industry.

Aiming at the problem, many organizations and individuals are beginning to research the medlar picking machine, and the problem that the medlar picking cannot be mechanized is solved by the breakthrough. Therefore, in recent years, a plurality of inventions related to the medlar picking machine appear, and the inventions generally belong to two categories: the large-scale medlar picking machine represents the machine type such as patent application number 201510068863.7; the other is a small-sized medlar picking machine, which represents the models such as a 4ZGB-30 type portable medlar picking machine invented by the medlar center of Ningxia agricultural academy of sciences and a medlar picking machine with the patent application number of 201410464204.0. From the characteristics of planting modes of medlar and branch and fruit division, a large medlar picking machine cannot meet the production requirements at present, and is still in a research and development stage basically. The small-sized picking machine has the advantages of small size, flexibility, convenience in carrying, no damage to branches, no rolling of field soil and the like, so that the small-sized picking machine is better at present. However, most of the inventions of the small-sized medlar picking machines are still in a more elementary state, the practicability and the effectiveness are not strong, and the inventions cannot really replace manual picking. For example: the 4ZGB-30 type portable wolfberry picking machine invented by the wolfberry center of Ningxia agriculture and forestry academy of sciences utilizes the mechanism that the bonding force between the fruit stem and the branch of mature fruit of wolfberry and adopts a mechanical vibration method to shake the mature fruit off the tree body. Although the method can pick the medlar at a speed higher than that of manual work, leaves, flowers and partial olives are shaken off while fruits are shaken off, and branches and tree bodies are possibly damaged; the vibration of the vibration head causes people to feel uncomfortable after long-time operation; the shaked fruit also requires manual collection. The practicability is not high, and the problem of replacing manpower by real solution is not solved. For another example: although the invention with the patent application number of 201410464204.0 has higher practicability than other medlar pickers, the invention solves the problems of secondary use of manpower and damage to branches and trees of a 4ZGB-30 type portable medlar picker, and has no discomfort for long-time picking operation. However, the invention can not adjust the gap between the two picking rollers, only can pick the medlar with fixed size, and can not effectively pick the fruits with different sizes, such as summer and autumn fruits, and the fruits of the medlar with different varieties; the invention is determined by design thought and working principle, only fruits right below the branch can be picked, but fruits on the side surface and the upper surface of the branch cannot be picked; the collection device of matrimony vine is too single. The invention has not strong practicability, and does not really solve the problem of replacing manpower with instruments.

Disclosure of Invention

Aiming at the defects that the picking of the Chinese wolfberry is difficult and the existing Chinese wolfberry picking machinery technology exists, the invention provides the Chinese wolfberry picking machine which is convenient to disassemble and assemble, can adjust the spacing of picking mechanisms and can pick Chinese wolfberry at multiple angles.

The technical scheme of the invention is as follows: the wolfberry picking machine comprises a power supply, a driving motor, a transmission device, a picking roller mechanism, a picking machine shell and a gear carrier, wherein the power supply is electrically connected with the driving motor, a rotating shaft of the driving motor is fixedly connected with one end of the transmission device, the other end of the transmission device is detachably connected with the picking roller mechanism, the driving motor and the transmission device are arranged on the gear carrier, the gear carrier is connected with the picking machine shell, the upper end of the picking machine shell is opened, and a discharge port is formed in the lower end of the picking machine shell.

The transmission device comprises a gear bearing, a driving gear, a first driven gear, a second driven gear, a first picking gear and a second picking gear, wherein the gear bearing is arranged on a gear carrier, one end of the driving gear is fixedly connected with a rotating shaft of a driving motor, the other end of the driving gear is sleeved on the gear bearing, the driving gear is meshed with the first driven gear and is connected with the second driven gear, the first driven gear is meshed with the first picking gear and is connected with the first picking gear, the second driven gear is meshed with the second picking gear and is connected with the second picking gear, the driving gear, the first driven gear, the second driven gear, the first picking gear and the second picking gear are sleeved on the gear bearing of the gear carrier, and one end of a wheel shaft of the first picking gear and the second picking gear penetrates through a picking machine shell respectively and is detachably connected with a picking roller mechanism.

The picking roller mechanism comprises a roller shaft and flexible plectrum, one end of a rotating shaft of the first picking gear and one end of a rotating shaft of the second picking gear are power output ends, the outer edge of each power output end is provided with a tooth-shaped bulge, correspondingly, the inner edge of the roller shaft is provided with a tooth-shaped groove, the power output ends are embedded into the grooves of the roller shaft, the roller shaft and the power output ends are respectively provided with a threaded hole, the roller shaft and the power output ends are fixedly connected through screws, at least two rows of flexible plectrum are arranged on the roller shaft, and a gap is reserved between adjacent flexible plectrum in the same row, so that the pressure between the medlar and the flexible plectrum is reduced in the medlar picking process.

The picking machine shell comprises a front accommodating shell, a rear partition plate, an accommodating bottom shell, two arc-shaped picking roller baffle plates and a picking handle, wherein the front accommodating shell is detachably connected with the rear partition plate, the front accommodating shell, the rear partition plate is detachably connected with the accommodating bottom shell, the front accommodating shell, the rear partition plate and the accommodating bottom shell form a cavity for accommodating the picking roller mechanisms and the Chinese wolfberry, the two picking roller baffle plates are respectively arranged on two sides of the inner wall of the front accommodating shell and are positioned below the picking roller mechanisms, a gear carrier is arranged on the rear partition plate and is detachably connected with the gear carrier, through holes are formed in the gear carrier, gear bearings are arranged in the through holes of the gear carrier, a driving gear, a first driven gear, a second driven gear, a first picking gear and a second picking gear are sleeved on the gear bearings, a protective cover is arranged at the front end of the picking handle to cover the driving gear, the first driven gear, the second driven gear, the first picking gear and the second picking gear in the cavity of the protective cover, the protective cover is detachably connected with the rear partition plate, the interior of the picking handle is hollow, and the driving motor is arranged in the cavity of the picking handle.

The inner wall of the upper end of the accommodating bottom shell is provided with a first clamping groove, and the outer wall of the lower end of the front accommodating shell and the lower end of the rear partition plate is provided with a second clamping groove which is embedded with the first clamping groove, so that the front accommodating shell, the rear partition plate and the accommodating bottom shell are detachably connected.

The accommodating bottom shell is funnel-shaped, a discharge hole is formed in the bottom of the accommodating bottom shell, the wolfberry picking machine further comprises an elastic telescopic pipe and an accommodating device used for collecting wolfberry, the lower end of the discharge hole is connected with the upper end of the elastic telescopic pipe in a sealing mode, and the lower end of the elastic telescopic pipe is connected with the accommodating device.

The accommodating bottom shell comprises a connecting frame and an accommodating bottom plate, one end of the connecting frame is hinged to the accommodating bottom plate, and the other end of the connecting frame is connected with the accommodating bottom plate in a buckling mode.

The gear carrier comprises a roller spacing adjusting mechanism and a fixed gear carrier, the driving gear, the first driven gear and the first picking gear are arranged on the fixed gear carrier, the second driven gear and the second picking gear are arranged on the roller spacing adjusting mechanism, the roller spacing adjusting mechanism comprises an adjustable gear carrier, a worm seat and a knob bearing, the edge of the lower end of the adjustable gear carrier is worm-wheel-shaped, the worm is meshed with the worm-wheel-shaped edge of the adjustable gear, the worm is sleeved on the knob bearing, the knob bearing is arranged on the worm seat, the worm seat is fixedly connected with the fixed gear carrier, the second driven gear and the second picking gear are arranged on the adjustable gear carrier, the rear partition plate is provided with an arc-shaped nesting hole, the wheel shaft of the second picking gear is located in the nesting hole, and when the worm rotates, the wheel shaft of the second picking gear on the adjustable gear carrier is driven to slide in the nesting hole, so that the spacing of the picking roller mechanisms is adjusted.

The roller spacing adjusting mechanism further comprises a first transmission gear, a second transmission gear, a transmission shaft and an adjusting knob, the first transmission gear is arranged on the worm and located on the inner side of the worm seat, the second transmission gear and the adjusting knob are arranged on the transmission shaft, the second transmission gear is located on the inner side of the worm seat and meshed with the first transmission gear, the adjusting knob is located on the outer side of the worm seat, and an operator rotates the adjusting knob to adjust the spacing of the picking roller mechanism.

The driving motor is a direct current speed regulating motor, a speed regulating trigger is arranged on the picking machine shell and electrically connected with the direct current speed regulating motor so as to regulate the rotating speed of the direct current speed regulating motor by pulling the speed regulating trigger, and a steering switch is arranged at the rear end of the picking handle and electrically connected with the direct current speed regulating motor so as to regulate the rotating direction of the driving motor.

The invention has the advantages that:

1. the transmission device, the picking roller mechanism and the picking machine shell can be freely disassembled and assembled, so that a user can conveniently clean or replace parts.

2. Picking roller baffles are arranged on two sides of the front accommodating shell, so that picking personnel can operate the medlar picking machine at multiple angles to pick fruits right below, on the side and on the top of branches.

3. The picking roller mechanism has adjustable space and convenient adjustment and operation, and is beneficial to picking the medlar with different sizes.

4. The invention adopts a direct current speed regulating motor, the speed regulation is convenient, the rotating speed of the motor can be regulated at will according to the requirement, the medlar is picked from the branches under the condition of not damaging the medlar, a forward and reverse rotation switch is arranged at the handle, and after foreign matters or medlar branches are involved in the medlar picking machine, the foreign matters or medlar branches are reversed by the reverse rotation of the motor.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention.

FIG. 2 is a schematic view of the split structure of the present invention.

Fig. 3 is a schematic view of the structure of the non-driving motor and the front receiving case of the present invention.

Fig. 4 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1 in accordance with the present invention.

Fig. 5 is a schematic structural view of the container with the accommodating device of the present invention.

FIG. 6 is a schematic view of the structure of the present invention with a connecting frame and a receiving base plate.

Fig. 7 is a partial structural schematic diagram of the rear bulkhead of the present invention in cooperation with the power take-off.

FIG. 8 is a schematic view of the adjustable gear rack of the present invention coupled to a transmission.

In the figure: the device comprises a driving motor 10, a speed regulation trigger 101, a steering switch 102, a transmission device 20, a driving gear 201, a first driven gear 202, a second driven gear 203, a first picking gear 204, a second picking gear 205, a picking roller mechanism 30, a power output end 301, a threaded hole 3011, a rolling shaft 302, a groove 3021, a flexible shifting sheet 303, a picking machine housing 40, a discharge port 401, a front accommodating shell 402, a second clamping groove 4021, a gear carrier 403, a roller spacing adjusting mechanism 4031, an adjustable gear carrier 40311, a worm 40312, a worm seat 40313, a first transmission gear 40314, a second transmission gear 40315, a transmission shaft 40316, an adjusting knob 40317, a fixed gear carrier 4032, a nesting hole 40321, an accommodating bottom shell 404, a first clamping groove 4041, a connecting frame 4042, an accommodating bottom plate 4043, a picking roller baffle 405, a picking handle 403406, a protective cover 4061, a rear baffle 407, an elastic telescopic pipe 50 and an accommodating device 60.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

As shown in fig. 1 to 4, the wolfberry picking machine comprises a power supply, a driving motor 10, a transmission device 20, a picking roller mechanism 30, a picking machine shell 40 and a gear carrier 403, wherein the power supply is electrically connected with the driving motor 10, a rotating shaft of the driving motor 10 is fixedly connected with one end of the transmission device 20, the other end of the transmission device 20 is detachably connected with the picking roller mechanism 30, the driving motor 10 and the transmission device 20 are arranged on the gear carrier 403, the gear carrier 403 is connected with the picking machine shell 40, the upper end of the picking machine shell 40 is open, and a discharge hole 401 is formed in the lower end of the picking machine shell 40.

The transmission device 20 comprises a gear bearing, a driving gear 201, a first driven gear 202, a second driven gear 203, a first picking gear 204 and a second picking gear 205, the gear bearing is arranged on a gear frame 403, one end of the driving gear 201 is fixedly connected with a rotating shaft of the driving motor 10, the other end of the driving gear 201 is sleeved on the gear bearing, the driving gear 201 is meshed with the first driven gear 202, the first driven gear 202 is meshed with the second driven gear 203, the first driven gear 202 is meshed with the first picking gear 204, the second driven gear 203 is meshed with the second picking gear 205, the driving gear 201, the first driven gear 202, the second driven gear 203, the first picking gear 204 and the second picking gear 205 are sleeved on the gear bearing of the gear frame 403, and one end of a wheel shaft of the first picking gear 204 and one end of a wheel shaft of the second picking gear 205 penetrate through the picking machine shell 40 and are detachably connected with the picking roller mechanism 30.

When the driving motor 10 rotates, the gear of the transmission device 20 is driven to rotate, so that the picking roller mechanism 30 connected with the transmission device 20 rotates, and the picking roller mechanism 30 bumps the medlar fruits into the picking machine shell 40 in the rotation process.

The picking roller mechanism 30 comprises a roller shaft 302 and flexible poking pieces 303, one end of a rotating shaft of the first picking gear 204 and one end of a rotating shaft of the second picking gear 205 are power output ends 301, the power output ends 301 are respectively fixedly connected with wheel shafts of the first picking gear 204 and the second picking gear 205 through screws, tooth-shaped protrusions are arranged on the outer edges of the power output ends 301, correspondingly, tooth-shaped grooves 3021 are arranged on the inner edges of the roller shaft 302, the power output ends 301 are embedded into the grooves 3021 of the roller shaft 302, meanwhile, the roller shaft 302 and the power output ends 301 are respectively provided with threaded holes 3011, the roller shaft 302 and the power output ends 301 are fixedly connected through screws, at least two rows of flexible poking pieces 303 are arranged on the roller shaft 302, gaps are reserved between adjacent flexible poking pieces 303 in the same row, and the pressure between the medlar and the flexible poking pieces 303 is reduced in the medlar picking process.

In a preferred embodiment, the flexible pick 303 is a silicone pick.

The picking machine shell body 40 comprises a front accommodating shell 402, a rear partition 407, an accommodating bottom shell 404, two arc-shaped picking roller baffles 405 and a picking handle 406, wherein the front accommodating shell 402 is detachably connected with the rear partition 407, the front accommodating shell 402 and the rear partition 407 are detachably connected with the accommodating bottom shell 404, the front accommodating shell 402, the rear partition 407 and the accommodating bottom shell 404 form a cavity for accommodating the picking roller mechanisms 30 and the medlar, the two picking roller baffles 405 are respectively arranged on two sides of the inner wall of the front accommodating shell 402 and below the picking roller mechanisms 30, a gear frame 403 is arranged on the rear partition 407, the rear partition 407 is detachably connected with the gear frame 403, a through hole is formed in the gear frame, a gear bearing is arranged in the through hole of the gear frame, rotating shafts of a driving gear 201, a first driven gear 202, a second driven gear 203, a first picking gear 204 and a second picking gear 205 are sleeved on the gear bearing, a protective cover 4061 is arranged at the front end of the picking handle 406, so that the hollow driving gear 201, the first driven gear 202, the second driven gear 203, the first picking gear 40205 covers the protective cover and the protective cover is arranged in the cavity of the detachable picking handle 403, and the picking handle 407 is connected with the protective cover 407, and the picking motor 406, and the picking handle 407 is arranged in the detachable cavity of the picking handle 406.

Because the medlar branches are not completely horizontal or grow downwards in the actual picking process, the medlar is not completely below the branches. When the medlar branches grow upwards, if the medlar on the medlar branches are picked, the medlar picking machine is inclined to face the medlar branches. Without the picking roller baffles 405, if the wolfberry picker is tilted or inverted, the fruits in the wolfberry picker may slide down the roller of the wolfberry picker, the roller of the picker may break the fruits or the fruits may flow out of the wolfberry picker. After the picking roller baffles 405 are arranged, when the picking machine inclines or is inverted, the picking roller baffles 405 can prevent fruits from sliding down, so that the fruits are prevented from being broken or flowing out of the picking machine shell 40, and the picking personnel can operate the wolfberry picking machine at multiple angles.

In a preferred embodiment, the connection between the front housing shell 402 and the rear partition 407 is provided with a protrusion or a groove that is engaged with each other, so as to detachably connect by means of a snap-fit.

In another preferred embodiment, the connection between the front receiving case 402 and the rear partition 407 is provided with a screw hole for detachable connection by means of screw connection.

In a preferred embodiment, rear bulkhead 407 and gear carrier 403 are fixedly coupled by screws.

A first clamping groove 4041 is formed in the inner wall of the upper end of the accommodating bottom shell 404, and a second clamping groove 4021 which is embedded with the first clamping groove 4041 is formed in the outer walls of the lower ends of the front accommodating shell 402 and the rear partition 407, so that the front accommodating shell 402 and the rear partition 407 are detachably connected with the accommodating bottom shell 404.

As shown in fig. 5 to 8, the accommodating bottom shell 404 is funnel-shaped, a discharge hole 401 is formed in the bottom of the accommodating bottom shell 404, the wolfberry picking machine further includes an elastic telescopic tube 50 and an accommodating device 60 for collecting wolfberries, the lower end of the discharge hole 401 is connected with the upper end of the elastic telescopic tube 50 in a sealing manner, and the lower end of the elastic telescopic tube 50 is connected with the accommodating device 60.

In another preferred embodiment, the receiving bottom 404 includes a connecting frame 4042 and a receiving bottom 4043, one end of the connecting frame 4042 is hinged to the receiving bottom 4043, and the other end of the connecting frame 4042 is snap-connected to the receiving bottom 4043.

The gear rack 403 comprises a roller spacing adjusting mechanism 4031 and a fixed gear rack 4032, the driving gear 201, the first driven gear 202 and the first picking gear 204 are arranged on the fixed gear rack 4032, the second driven gear 203 and the second picking gear 205 are arranged on the roller spacing adjusting mechanism 4031, the roller spacing adjusting mechanism 4031 comprises an adjustable 403gear rack 40311, a worm 40312, a worm seat 40313 and a knob bearing, the edge of the lower end of the adjustable gear rack 40311 is in a worm wheel shape, the worm 40312 is in meshing connection with the worm wheel-shaped edge of the adjustable gear, the worm 40312 is sleeved on the knob bearing, the knob bearing is mounted on the worm seat 40313, the worm seat 40313 is fixedly connected with the fixed gear rack 4032, the second driven gear 203 and the second picking gear 205 are arranged on the adjustable gear rack 40311, the rear partition plate 407 is provided with an arc-shaped nesting hole 21, and the rotating shaft of the second picking gear 205 is located in the nesting hole 40321, and when the worm 40312 rotates, the second driven gear 203 and the second picking gear 205 on the adjustable gear rack 40311 is driven in the nesting hole 40321, so that the picking gear 40330 slides in the nesting hole.

Because of the influence of factors such as season climate, the variety of matrimony vine, the size of matrimony vine fruit has the difference, and gyro wheel interval adjustment mechanism 4031 can be according to the size of matrimony vine fruit through adjusting worm 40312, the interval of picking gyro wheel mechanism 30 is adjusted to guarantee the smooth harvesting of matrimony vine. In the rotating process of the worm 40312, the adjustable gear rack 40311 is pushed by the worm 40312 to rotate, and meanwhile, the second driven gear 203 and the second picking gear 205 on the adjustable gear rack 40311 are driven to revolve, the second driven gear 203 is kept meshed with the driving gear 201 in the rotating process, and the rotating shaft of the second picking gear 205 drives the power output end 301 to move in the sliding process in the nesting hole 40321, so that the distance between the two roller shafts 302 is adjusted, and the distance adjustment of the picking roller mechanism 30 is realized.

The roller spacing adjustment mechanism 4031 further comprises a first transmission gear 40314, a second transmission gear 40315, a transmission shaft 40316 and an adjustment knob 40317, the first transmission gear 40314 is arranged on the worm 40312 and located on the inner side of the worm base 40313, the second transmission gear 40315 and the adjustment knob 40317 are arranged on the transmission shaft 40316, the second transmission gear 40315 is located on the inner side of the worm base 40313 and connected with the first transmission gear 40314 in a meshed mode, the adjustment knob 40317 is located on the outer side of the worm base 40313, and an operator rotates the adjustment knob 40317 to adjust the spacing of the picking roller mechanisms 30.

The driving motor 10 is a direct current speed regulating motor, a speed regulating trigger 101 is arranged on the picking machine shell 40, the speed regulating trigger 101 is electrically connected with the direct current speed regulating motor so as to regulate the rotating speed of the direct current speed regulating motor by pulling the speed regulating trigger 101, a steering switch 102 is arranged at the rear end of the picking handle 406, and the steering switch 102 is electrically connected with the direct current speed regulating motor so as to regulate the rotating direction of the driving motor 10.

During picking, the medlar picking machine mainly depends on the impulsive force of the flexible poking sheet 303 to bump medlar fruits into the medlar picking machine shell 40. If the impulsive force is too large, the medlar fruits can be damaged; if the impulsive force is too small, the medlar fruit can not be separated. The picking personnel can drop the fruits into the medlar picking machine by adjusting the rotating speed of the motor under the condition of not damaging the fruits. Meanwhile, during picking, the wolfberry branches or foreign matters can be clamped into the picking roller mechanism 30, and the reversing of the picking roller mechanism 30 can be realized by controlling the steering switch 102, so that the wolfberry branches or foreign matters clamped into the picking roller mechanism 30 can be rotated out.

The transmission device 20, the picking roller mechanism 30 and the picking machine shell 40 can be detached, so that parts can be replaced or cleaned conveniently, and because parts can be replaced, when the wolfberry picking machine breaks down, the maintenance cost is low, and meanwhile, the service life of the wolfberry picking machine is prolonged indirectly.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. A wolfberry picking machine is characterized in that: the picking device comprises a power supply, a driving motor, a transmission device, a picking roller mechanism, a picking machine shell and a gear carrier, wherein the power supply is electrically connected with the driving motor, a rotating shaft of the driving motor is fixedly connected with one end of the transmission device, the other end of the transmission device is detachably connected with the picking roller mechanism, the driving motor and the transmission device are arranged on the gear carrier, the gear carrier is connected with the picking machine shell, the upper end of the picking machine shell is open, and the lower end of the picking machine shell is provided with a discharge hole;

the transmission device comprises a gear bearing, a driving gear, a first driven gear, a second driven gear, a first picking gear and a second picking gear, the gear bearing is arranged on a gear frame, one end of the driving gear is fixedly connected with a rotating shaft of a driving motor, the other end of the driving gear is sleeved on the gear bearing, the driving gear is meshed with the first driven gear, the first driven gear is meshed with the second driven gear, the first driven gear is meshed with the first picking gear, the second driven gear is meshed with the second picking gear, the driving gear, the first driven gear, the second driven gear, the first picking gear and the second picking gear are sleeved on the gear bearing of the gear frame, and one end of a wheel shaft of each of the first picking gear and the second picking gear respectively penetrates through a picking machine shell to be detachably connected with a picking roller mechanism;

the picking roller mechanism comprises a roller shaft and flexible plectrums, one end of a rotating shaft of a first picking gear and one end of a rotating shaft of a second picking gear are power output ends, the outer edge of each power output end is provided with a tooth-shaped bulge, correspondingly, the inner edge of the roller shaft is provided with a tooth-shaped groove, the power output ends are embedded into the grooves of the roller shaft, the roller shaft and the power output ends are respectively provided with a threaded hole, the roller shaft and the power output ends are fixedly connected through screws, at least two rows of flexible plectrums are arranged on the roller shaft, and a gap is reserved between adjacent flexible plectrums in the same row, so that the pressure between medlar and flexible blades is reduced in the medlar picking process;

the picking machine shell comprises a front accommodating shell, a rear partition plate, an accommodating bottom shell, two arc-shaped picking roller baffle plates and a picking handle, wherein the front accommodating shell is detachably connected with the rear partition plate, the front accommodating shell and the rear partition plate are detachably connected with the accommodating bottom shell, the front accommodating shell, the rear partition plate and the accommodating bottom shell form a cavity for accommodating the picking roller mechanisms and the Chinese wolfberry, the two picking roller baffle plates are respectively arranged on two sides of the inner wall of the front accommodating shell and positioned below the picking roller mechanisms, a gear carrier is arranged on the rear partition plate and detachably connected with the gear carrier, a through hole is formed in the gear carrier, a gear bearing is arranged in the through hole of the gear carrier, a driving gear, a first driven gear, a second driven gear, a first picking gear and a second picking gear are sleeved on the gear bearing, a protective cover is arranged at the front end of the picking handle so as to cover the driving gear, the first driven gear, the second driven gear, the first picking gear and the second picking gear in the cavity of the protective cover, the protective cover is detachably connected with the rear partition plate, the picking handle, the interior of the picking handle is hollow, and a driving motor is arranged in the cavity of the picking handle;

a first clamping groove is formed in the inner wall of the upper end of the containing bottom shell, and second clamping grooves which are embedded with the first clamping grooves are formed in the outer walls of the lower ends of the front containing shell and the rear partition plate, so that the front containing shell and the rear partition plate are detachably connected with the containing bottom shell;

the gear carrier comprises a roller spacing adjusting mechanism and a fixed gear carrier, the driving gear, the first driven gear and the first picking gear are arranged on the fixed gear carrier, the second driven gear and the second picking gear are arranged on the roller spacing adjusting mechanism, the roller spacing adjusting mechanism comprises an adjustable gear carrier, a worm seat and a knob bearing, the edge of the lower end of the adjustable gear carrier is in a worm wheel shape, the worm is meshed with the worm-wheel-shaped edge of the adjustable gear, the worm is sleeved on the knob bearing, the knob bearing is arranged on the worm seat, the worm seat is fixedly connected with the fixed gear carrier, the second driven gear and the second picking gear are arranged on the adjustable gear carrier, the rear partition plate is provided with an arc-shaped nesting hole, the wheel shaft of the second picking gear is located in the nesting hole, and when the worm rotates, the wheel shaft of the second picking gear on the adjustable gear carrier is driven to slide in the nesting hole, so that the spacing of the picking roller mechanisms is adjusted.

2. The wolfberry picking machine according to claim 1, wherein: the accommodating bottom shell is funnel-shaped, a discharge hole is formed in the bottom of the accommodating bottom shell, the wolfberry picking machine further comprises an elastic telescopic pipe and an accommodating device used for collecting wolfberry, the lower end of the discharge hole is connected with the upper end of the elastic telescopic pipe in a sealing mode, and the lower end of the elastic telescopic pipe is connected with the accommodating device.

3. The wolfberry picking machine according to claim 1, wherein: the accommodating bottom shell comprises a connecting frame and an accommodating bottom plate, one end of the connecting frame is hinged to the accommodating bottom plate, and the other end of the connecting frame is connected with the accommodating bottom plate in a buckling mode.

4. The wolfberry picking machine according to claim 1, wherein: the roller spacing adjusting mechanism further comprises a first transmission gear, a second transmission gear, a transmission shaft and an adjusting knob, the first transmission gear is arranged on the worm and located on the inner side of the worm seat, the second transmission gear and the adjusting knob are arranged on the transmission shaft, the second transmission gear is located on the inner side of the worm seat and meshed with the first transmission gear, the adjusting knob is located on the outer side of the worm seat, and an operator rotates the adjusting knob to adjust the spacing of the picking roller mechanism.

5. The wolfberry picking machine according to any one of claims 1, 2, 3 and 4, wherein: the driving motor is a direct-current speed regulating motor, a speed regulating trigger is arranged on the shell of the picking machine and electrically connected with the direct-current speed regulating motor so as to regulate the rotating speed of the direct-current speed regulating motor by pulling the speed regulating trigger, and a steering switch is arranged at the rear end of the picking handle and electrically connected with the direct-current speed regulating motor so as to regulate the rotating direction of the driving motor.