CN211385708U

CN211385708U - Walnut screening machine

Info

Publication number: CN211385708U
Application number: CN201922042282.2U
Authority: CN
Inventors: 杨岗波; 杨惠民; 杨惠安; 罗之光
Original assignee: Yunnan Shengchang Forest Products Development Co ltd
Current assignee: Yunnan Shengchang Forest Products Development Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-09-01
Anticipated expiration: 2029-11-23

Abstract

The utility model discloses a walnut sieve separator aims at providing a screening efficient walnut sieve separator. The device comprises a rack, a screen drum rotatably mounted on the rack, a feed chute fixedly connected to the rack and positioned at a feed inlet of the screen drum, a discharge chute fixedly connected to the rack and positioned below the screen drum and at a discharge end, and a power device for driving the screen drum to rotate; the screen drum is divided into a plurality of sections, and the aperture of each section of screen hole of the screen drum is sequentially increased from the feed port to the other end; the inner wall of the screen drum is provided with a spiral conveying blade; a roller is rotatably arranged on the frame and positioned at the upper part and/or the side part of the outer wall of the screen drum; the axis of the roller is parallel to the screen drum, and the wall surface of the roller is close to the outer wall surface of the screen drum; the length of the roller is not shorter than that of the screen hole area on the screen drum. The utility model is suitable for a screening of all kinds of walnuts is used.

Description

Walnut screening machine

Technical Field

The utility model belongs to the technical field of the screening installation technique and specifically relates to a walnut sieve separator is related to.

Background

Walnut is produced in China in many provinces. Distributed in Central Asia, Western Asia, south Asia and Europe. Grow in hillside and hilly land with elevation of 400-1800 m, and are commonly cultivated in plains and hilly areas of China. The kernel has high oil content, and can be eaten raw or after being pressed; the wood is solid and is a good hardwood material. It is combined with almond, cashew nut and hazelnut and listed as four dry fruits in the world. The walnut, as a nut which is popular with people, has rich nutrition value and high edible value, contains protein of up to 15-20 g per hundred g, contains various trace elements and mineral substances such as calcium, phosphorus, iron and the like which are necessary for a human body, and various vitamins such as carotene, riboflavin and the like, is beneficial to the human body, and can strengthen the brain. After the walnuts are harvested, screening is generally carried out according to the volume of the walnuts, and the walnuts within a certain diameter range are screened out to realize product classification; at present, manual screening and mechanical screening are mainly adopted, and manual screening not only consumes manpower and time, so that the efficiency is very low. The existing walnut screening equipment has the following defects: (1) have the walnut card on the sieve mesh during walnut screening, cause the sieve mesh to block up, lead to screening efficiency to reduce by a wide margin, need strike the clearance through the manual work, strike the clearance and lead to the walnut broken easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a purpose aims at overcoming the not enough of prior art existence, provides a screening efficiency height, can realize the walnut sieve separator of sieve mesh clearance automatically.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a walnut screening machine comprises a rack, a screen drum rotatably mounted on the rack, a feed chute fixedly connected to the rack and positioned at a feed inlet of the screen drum, a discharge chute fixedly connected to the rack and positioned below the screen drum and at a discharge end, and a power device for driving the screen drum to rotate; the screen drum is divided into a plurality of sections, and the aperture of each section of screen hole of the screen drum is sequentially increased from the feed port to the other end; the inner wall of the screen drum is provided with a spiral conveying blade; a roller is rotatably arranged on the frame and positioned at the upper part and/or the side part of the outer wall of the screen drum; the axis of the roller is parallel to the screen drum, and the wall surface of the roller is close to the outer wall surface of the screen drum; the length of the roller is not shorter than that of the screen hole area on the screen drum.

Preferably, the roller is a plurality of roller sections which are sequentially and rotatably arranged on the frame.

Preferably, the roller is a plurality of roller sections, the plurality of roller sections are divided into two groups, and the two groups of roller sections are symmetrically positioned on two sides of the upper part of the screen drum and are arranged in a staggered manner.

Preferably, the roller is connected with the rack through a swing arm, the swing arm is hinged with the rack, and the roller is attached to the outer wall surface of the screen drum through self gravity.

Preferably, the self-locking walking wheel is rotatably arranged at the lower end of the frame.

Preferably, the power device comprises a motor arranged on the frame, a gear ring sleeved on the roller, a gear arranged on the frame through a gear shaft and meshed with the gear ring, and a belt wheel mechanism connected with an output shaft of the motor and the gear shaft in a driving manner.

Preferably, the screen drum is connected with the frame through a tug mechanism.

Compared with the prior art, the utility model has the advantages of as follows:

the utility model discloses a cylinder is near on the screen drum outer wall, and the effectual walnut that will block in the sieve mesh is released, realizes clearing up often of sieve mesh, effectively ensures that screening efficiency does not reduce. And the walnuts clamped in the sieve meshes are extruded and pushed out by the roller, so that the walnuts are not easy to break, and the breaking rate of walnut screening can be effectively reduced.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a rear view of fig. 1.

Fig. 4 is a left side view of fig. 1.

Fig. 5 is a right side view of fig. 1.

Fig. 6 is an enlarged sectional view of a-a in fig. 1.

Fig. 7 is an enlarged sectional view of B-B in fig. 1.

Fig. 8 is a schematic structural view of the screw conveying blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention. In the following description, for the sake of clarity of illustrating the structure and operation of the present invention, reference will be made to the accompanying drawings by means of directional terms, but the terms "front", "rear", "left", "right", "up", "down", etc. should be construed as convenient terms and not as limitative terms.

The walnut screening machine shown in fig. 1-8 comprises a frame 1, a screen drum 2 rotatably mounted on the frame 1, a feed chute 3 fixedly connected to the frame 1 and located at a feed inlet of the screen drum 2, a discharge chute 4 fixedly connected to the frame 1 and located below the screen drum 2 and at a discharge end, and a power device 5 for driving the screen drum 2 to rotate; the screen drum 2 is divided into a plurality of sections, and the aperture of each section of screen hole of the screen drum 2 is sequentially increased from the feed port to the other end; the inner wall of the screen drum 2 is provided with a spiral conveying blade 6; a roller 7 is rotatably arranged on the frame 1 and positioned at the upper part of the outer wall of the screen drum 2; the axis of the roller 7 is parallel to the screen drum 2, and the wall surface of the roller 7 is close to the outer wall surface of the screen drum 2; the length of the drum 7 is not shorter than the length of the screen hole area on the screen cylinder 2.

In this city implementation, the cylinder 7 is the multistage cylinder section, and the multistage cylinder section divide into two sets ofly, and two sets of cylinder sections symmetry are located sieve section of thick bamboo 2 upper portion both sides, and the dislocation set. The benefit of this kind of setting lies in can be when 7 extrusion cards walnuts on the sieve mesh of cylinder, and 2 atress balances of sieve section of thick bamboo are realized to well both sides application of force, reduce the vibration of a sieve section of thick bamboo 2. Obviously, the roller 7 may be a plurality of roller segments arranged in a straight line, or an integral roller with a long strip, and the roller 7 may be a rubber roller or the like.

In the embodiment, the roller 7 is connected with the rack 1 through the swing arm 8, the swing arm 8 is hinged with the rack 1, and the roller 7 is attached to the outer wall surface of the screen drum 2 through the self gravity; this kind of structure can reduce to check broken, to the tighter walnut of card in the sieve mesh, the accessible rotates and extrudees many times and realizes the pine and take off. It is clear that the drum 7 can also be mounted in a stationary manner.

As a further improvement, the screening machine further comprises a self-locking travelling wheel 9 which is rotatably arranged at the lower end of the frame 1, so that the screening machine is convenient to transfer and carry.

In this embodiment, the power device 5 includes a motor 51 mounted on the frame 1, a gear ring 52 sleeved on the drum 7, a gear (not shown) mounted on the frame 1 through a gear shaft 53 and engaged with the gear ring 52, and a pulley mechanism 54 drivingly connecting an output shaft of the motor 51 and the gear shaft 53. Obviously, the power unit 5 may also adopt other conventional power equipment and transmission structure forms.

In this embodiment, the screen drum 2 is connected to the frame 1 through a tug mechanism, which is similar to the tug structure of a de-enzyming machine or a blender, and obviously, other common rotating installation structures can also be adopted. The utility model discloses a V-arrangement groove tow boat structure, by the tow boat hold a sieve section of thick bamboo 2, sieve section of thick bamboo 2 operates steadily, and the drunkenness can not be controlled in the operation of ring gear 52, and the riding wheel adopts the rubber riding wheel, adopts biserial centripetal ball bearing to install, has the operation light and fast, advantage that the noise is low. The utility model discloses the running noise of complete machine is less than 75 decibels, if adopt the at the uniform velocity feeding of lifting machine then noise reduction effect is better during the feeding.

Obviously, the rollers may also be located on the side of the screen cylinder, or both on the upper and side of the screen cylinder.

In the embodiment, the optimal rotation parameters are set as follows, the length of the screen drum is 6 meters, the motor (the six-stage motor 51, the rotating speed of 960 r/min) drives the belt wheel mechanism (the transmission ratio is 1: 7.46 r/min), the belt wheel mechanism drives the gear ring (the transmission ratio is 1: 12) through the gear shaft, so that the rotating speed of the screen drum is 10.27 r/min, the screw pitch of the spiral conveying blade in the screen drum is 500mm, the time from the inlet to the outlet of the screen drum is 1 min 13 sec, the screening speed can ensure the high efficiency of screening, and the walnut can be prevented from being impacted and damaged.

The screen drum in the embodiment has four sections, and the preferable parameters are that the four sections of screen holes are phi 32mm, phi 33mm, phi 34 mm and phi 38mm in sequence; when the walnuts are screened, the sieve mesh size is used for grading, small fruits with the diameter of less than 32mm are used as the small fruits, medium fruits with the diameter of 33mm are used as the medium fruits, medium fruits with the diameter of 34 mm are used as the medium fruits, large fruits with the diameter of 38mm are used as the large fruits, and large fruits with the diameter of more than 38mm are used as the extra large fruits. In practical application, the sieve with the unnecessary specification holes can be replaced or sealed according to the specification required by fruit selection, and then the corresponding screening result can be obtained. The utility model discloses a screening efficiency can reach 3 tons per hour, and the screening process does not have the sieve mesh basically and blocks up, and screening efficiency improves by a wide margin, the first one thousand of breakage rate of walnut.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. It should be understood by those skilled in the art that any modification, equivalent replacement, or improvement made to the technical solutions or parts of technical features described in the above embodiments can be included in the scope of the present invention within the spirit and principle of the present invention.

Claims

1. A walnut screening machine comprises a rack, a screen drum rotatably mounted on the rack, a feed chute fixedly connected to the rack and positioned at a feed inlet of the screen drum, a discharge chute fixedly connected to the rack and positioned below the screen drum and at a discharge end, and a power device for driving the screen drum to rotate; the screen drum is divided into a plurality of sections, and the aperture of each section of screen hole of the screen drum is sequentially increased from the feed port to the other end; the method is characterized in that: the inner wall of the screen drum is provided with a spiral conveying blade; a roller is rotatably arranged on the frame and positioned at the upper part and/or the side part of the outer wall of the screen drum; the axis of the roller is parallel to the screen drum, and the wall surface of the roller is close to the outer wall surface of the screen drum; the length of the roller is not shorter than that of the screen hole area on the screen drum.

2. The walnut screening machine of claim 1, wherein: the self-locking walking wheel is rotatably arranged at the lower end of the frame.

3. The walnut screening machine of claim 1 or 2, wherein: the roller is a plurality of roller sections which are sequentially and rotatably arranged on the frame.

4. The walnut screening machine of claim 1 or 2, wherein: the cylinder is the multistage cylinder section, and the multistage cylinder section divide into two sets ofly, and two sets of cylinder sections symmetry are located a sieve section of thick bamboo upper portion both sides, and dislocation set.

5. The walnut screening machine of claim 1 or 2, wherein: the roller is connected with the frame through a swing arm, the swing arm is hinged with the frame, and the roller is attached to the outer wall surface of the screen drum through self gravity.

6. The walnut screening machine of claim 1 or 2, wherein: the power device comprises a motor arranged on the rack, a gear ring sleeved on the roller, a gear arranged on the rack through a gear shaft and meshed with the gear ring, and a belt wheel mechanism connected with an output shaft of the motor and the gear shaft in a driving mode.

7. The walnut screening machine of claim 1 or 2, wherein: the screen drum is connected with the frame through a tug mechanism.