CN201823713U - Differential belt type red date grading machine - Google Patents

Abstract

A differential belt type jujube grading machine, which is composed of a differential belt type jujube grading mechanism, including a frame, a motor, a feeding hopper and a transmission device thereof, and is characterized in that at least two stages of differential belt type jujube are arranged on the frame Classification device, the output shaft of the motor under the frame is equipped with a transmission shaft, the front and rear ends of the transmission shaft are equipped with bevel gears, and the bevel gear shafts meshing with it are equipped with pulleys, and the diameter of the pulley at the front end is larger than that at the end. The diameter of the pulley at the end is large, and the two pulleys are respectively connected to the two pulleys with the same diameter on the top of the frame through the belt. There are two kinds of bushings that are connected with the square shaft and not connected with the square shaft evenly distributed on the shaft. The two kinds of bushings on the front and rear shafts are alternately arranged, and there is a grading belt between the front and back two shaft bushings, and a beating device is installed under each grading belt. Compared with the prior art, the utility model has the advantages of simple structure, convenient operation, no jujube jam phenomenon, high production efficiency and low jujube damage rate.

Description

Differential belt type jujube grader

technical field

The utility model relates to a jujube grading machine, in particular to a differential belt type jujube grading machine.

Background technique

At present, there are many mechanical jujube grading equipment, among which the rigid grading equipment can be summarized into the following three types: drum type, roller bar type or sieve hole type. Most of these three types are rigid structures. According to certain grading standards, the drum type is The gap between the fences on the roller is gradually enlarged or reduced, and multi-stage rollers are set; the roller bar type is to increase the gap between adjacent roller bars, and multi-stage roller bars are set; the screen hole type is based on the size of the screen hole Variations in jujube grading. During the grading process of these devices, the damage of red dates is serious, and the jujube jam phenomenon is serious, thereby seriously reducing production efficiency.

Contents of the invention

The purpose of the utility model is to provide a differential speed belt type jujube classifier with simple structure, convenient operation, no jujube jam phenomenon, high production efficiency and low jujube breakage rate.

The utility model is composed of a differential belt-type jujube grading mechanism, which is characterized in that the differential belt-type jujube grading mechanism includes a frame, a motor, a feeding hopper and a transmission device, and a transmission shaft is arranged on the output shaft of the motor below the frame. , the front and rear ends of the transmission shaft are equipped with bevel gears, and the bevel gear shafts meshing with them are equipped with pulleys, and the diameter of the pulleys on the bevel gear shafts at the front end is larger than the diameter of the pulleys on the bevel gear shafts at the tail end Large, the two pulleys are respectively connected to the two pulleys with the same diameter on the top of the frame through the belt, the two pulleys on the top of the frame are integrated with the shaft, and the shaft is evenly distributed with bushings connected with the shaft. There are two kinds of bushings that are not connected as a whole, and the two kinds of bushings on the front and rear shafts are arranged alternately. There is a grading belt between the front and back two bushings, and there is a gap between the two adjacent grading belts. The gap is slightly larger than the size of the corresponding jujube grading. In order to prevent jujube jamming, a beating device is installed under each grading belt. A jujube bucket is installed under the grading belt. A jujube board is arranged between the described feeding hopper and the first-level classification belt, and the above-mentioned differential belt type jujube grading mechanism is provided with at least two stages, and a jujube board is arranged between the two stages;

In order to prevent jamming, the said beating device is provided with an oscillating cam between the two bevel gears on the transmission shaft, on the oscillating cam there is a beating ejector rod, on which a slider is arranged , the slider is connected with the pull rod arranged above the frame, and one end of the pull rod is provided with a hitting ball;

In order to feed the jujubes evenly, the jujube slide board is a fence-like flat plate with an inclined arrangement, an eccentric cam is set under the date slide board between the feed hopper and the first-stage grading belt, and a transmission wheel is set on the eccentric cam shaft. Driven by the pulley on the front shaft above the frame;

The two pulley shafts above the frame are preferably square shafts.

In order to facilitate the installation of the discharge hopper, two driven wheels are arranged on the beam in the middle of the frame under each grading belt, and the grading belt forms a trapezoidal closed loop around the two bushings and the two driven wheels.

It can be seen from the above structure that since the diameter of the pulley on the driven bevel gear shaft at the front end is larger than the pulley diameter on the driven bevel gear shaft at the tail end, the two pulleys are respectively connected to the two pulleys with the same diameter above the frame through the belt. so that the speed of the square shaft of the pulley at the front end is higher than the speed of the square shaft of the pulley at the end of the pulley. The square shaft is driven to form a speed difference. The jujubes are fed into the adjacent grading belts with different speeds from the feeding hopper and the oscillating jujube board. Coupled with the action of the beating device under the grading belts, the jujubes smaller than the gap between the grading belts will fall. Going in and out of the jujube hopper into the jujube collection box, there will be no jamming or broken jujubes. The jujubes left on the first-level grading belt enter the next-level differential-speed belt-type jujube grading device from the rear jujube slide board, and the gap between the belts of the latter level is larger than that of the upper level, so the falling jujubes are larger than those of the upper level. According to this, the red dates are divided into different grades.

Compared with the prior art, the utility model has the advantages of simple structure, convenient operation, no jujube jam phenomenon, high production efficiency and low jujube damage rate.

Description of drawings

FIG. 1 is a front view structural schematic diagram of Embodiment 1.

FIG. 2 is a schematic diagram of a partially enlarged structure at point A in FIG. 1 .

FIG. 3 is a schematic top view of the structure of FIG. 1 .

FIG. 4 is a schematic diagram of a partially enlarged structure at B in FIG. 3 .

As shown in the figure: 1 is the frame, 2 is the front-end square shaft, 3 is the transmission wheel on the eccentric camshaft, 4 is the eccentric cam, 5 is the date slide, 6 is the feeding hopper, and 7 is the front-end square shaft transmission wheel , 8 is the grading belt, 9 is the top stalk, 10 is the slider, 11 is the batting ball, 12 is the tail end square shaft drive wheel, 13 is the tail end square shaft, 14 is the sliding jujube board between the first and second grades, 15 is a small pulley at the tail end, 16 is a driven pulley, 17 is a discharge hopper, 18 is a jujube collection box, 19 is an oscillation cam, 20 is a large pulley at the front end, 21 is a transmission shaft, 22 is a front driving bevel gear, and 23 is a front end Passive bevel gear, 24 is tail end active bevel gear, 25 tail end passive bevel gears, 26 is the shaft sleeve that is not connected as one with the front end square shaft, 27 is the shaft sleeve that is integrated with the front end square shaft, 28 For the shaft sleeve that is not connected with the square shaft at the tail end, 29 is the shaft sleeve connected with the square shaft at the tail end, and 30 is the motor

Detailed ways

Example 1:

With reference to accompanying drawing, present embodiment comprises frame 1, motor 30, feed hopper 6 and transmission device, is characterized in that the motor output shaft below the frame is provided with transmission shaft 21, and the front and rear ends of transmission shaft are all provided with cone. Bevel gear 22,24, all be provided with belt pulley 20,15 on the bevel gear shaft that meshes with it, and the diameter of belt pulley 20 on the bevel gear shaft of front end is bigger than the diameter of belt pulley 15 on the bevel gear shaft of tail end, two The two belt pulleys are respectively connected with two belt pulleys 7 and 12 with the same diameter on the top of the frame through belts. The two pulley shafts on the top of the frame are all square shafts. The shaft sleeve 27 connected as one with the square shaft, and the shaft sleeve 26 not connected as a whole, the two kinds of shaft sleeves on the front and rear square shafts are alternately arranged, and a grading belt 8 is arranged between the front and rear two shaft sleeves, adjacent to each other. There is a gap between the two grading belts, which is slightly larger than the size of the corresponding jujube grading. In order to prevent jujube jamming, a beating device is installed under each grading belt, and a jujube bucket is installed under the grading belt. 17. A jujube collection box 18 is provided below the jujube bucket, and a jujube board 5 is arranged between the described feed hopper and the primary classification belt. Equipped with a four-stage differential speed belt-type jujube grading device, and a jujube sliding board 14 between the two stages

Hitting device is to be provided with shock cam 19 between two bevel gears on the transmission shaft, is provided with and hits ejector rod 9 on the shock cam, is provided with slide block 10 on the hit ejector rod, and slide block is arranged on machine The pull rod above the frame is connected, and one end of the pull rod is provided with a hitting ball 11.

The sliding board is a fence-like flat plate with an inclined arrangement. An eccentric cam 4 is set under the sliding board between the feed hopper and the first-grade grading belt, and a transmission wheel 3 is arranged on the eccentric cam shaft. The front-end square shaft above the frame Belt pulley 7 transmissions on.

The beam in the middle of the frame under each grading belt is provided with two driven wheels, and the grading belt winds around the two bushings and the two driven wheels to form a trapezoidal closed loop.

Example 2:

Compared with Embodiment 1, the difference of this embodiment is that a three-stage differential belt type jujube grading device is provided, and the structure of the latter two stages is the same as that of the first stage, and the graded jujubes can be divided into four grades.

Example 3:

Compared with Embodiment 1, the difference of this embodiment is that there is a secondary differential belt type jujube grading device, the structure of the latter two stages is the same as that of the first stage, and the graded jujubes can be divided into three grades. The two pulley shafts on the frame top are circular shafts.

Claims (9)

1. A differential speed belt type jujube classification machine, is made up of differential speed belt type jujube classification mechanism, is characterized in that described differential speed belt type jujube classification mechanism comprises frame (1), motor (30), feed hopper ( 6) and the transmission device, the motor output shaft below the frame is provided with a transmission shaft (21), the front and rear ends of the transmission shaft are all provided with bevel gears (22) (24), and the bevel gears (23) meshed with it ) (25) shafts are equipped with pulleys (20) (15), and the diameter of the pulley (20) on the bevel gear shaft at the front end is larger than the diameter of the pulley (15) on the bevel gear shaft at the tail end. The two belt pulleys (7) (12) with the same diameter on the top of the frame are respectively connected by belts, and the two pulleys on the top of the frame are connected with the shaft, and the shafts are evenly distributed with the shafts connected with the square shaft at intervals. Sleeve (27), and the shaft sleeve (26) that is not connected as a whole, the two kinds of shaft sleeves on the front and rear shafts are alternately arranged, and a grading belt (8) is provided between the front and rear two shaft sleeves, and the adjacent two shaft sleeves Between the grading belts, there is a gap, and the bottom of each grading belt is provided with a beating device, the bottom of the grading belt is provided with a jujube bucket (17), and the bottom of the jujube bucket is provided with a jujube collection box (18). A jujube slide board (5) is provided between the feed hopper and the first-level classification belt, and the above-mentioned differential belt type jujube grading mechanism is provided with two stages at least, and a date slide board (14) is provided between the two stages. 2. The differential belt type jujube grader as claimed in claim 1, characterized in that the hitting device is provided with an oscillating cam (19) between the two bevel gears on the transmission shaft, and the oscillating cam Be provided with and hit push rod (9), be provided with slide block (10) on the hit push rod, slide block is connected with the pull bar that is located at the frame top, and one end of pull bar is provided with hit ball (11). 3. The differential belt-type jujube classifier as claimed in claim 1 or 2, characterized in that the jujube slide board is a fence-like flat board arranged obliquely, and the date slide board between the feed hopper and the first-stage grading belt An eccentric cam (4) is arranged below, and a transmission wheel (3) is arranged on the eccentric camshaft, which is driven by a belt pulley (7) on the front end shaft above the frame. 4. as claim 1 or 2 described differential belt type jujube classifiers, it is characterized in that two driven wheels (16) are all provided with on the beam of the frame middle part below every classifying belt. 5. differential belt type jujube classifier as claimed in claim 3, is characterized in that two driven wheels (16) are all provided with on the beam of the frame middle part below every classifying belt. 6. as claimed in claim 1 or 2 described differential speed belt type jujube classification machine, it is characterized in that two belt pulley shafts above the frame described in the machine are square shafts. 7. differential belt type jujube classification machine as claimed in claim 3, is characterized in that two pulley shafts on the frame top of the machine are square shafts. 8. differential speed belt type jujube classification machine as claimed in claim 4, is characterized in that the two belt pulley shafts above the frame described in the machine are square shafts. 9. differential belt type jujube classification machine as claimed in claim 5, is characterized in that the two pulley shafts on the frame top of the machine are square shafts.

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