CN209255165U

CN209255165U - A kind of fruit screening machine

Info

Publication number: CN209255165U
Application number: CN201821954764.4U
Authority: CN
Inventors: 何翔; 何建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2019-08-16
Anticipated expiration: 2028-11-26

Abstract

The utility model relates to screening technique fields, specifically a kind of fruit screening machine, including screening mechanism, driving motor, conveyer belt and fixed frame, the screening mechanism includes driving drum, the first transmission belt, supporting element, live-roller, support rail and regulating device, first transmission belt both ends pass through the driving wheel respectively and connect with two driving drums, and the driving motor is for driving driving drum；The live-roller both ends pass through sliding mouth respectively and are slidably connected with the supporting element；For the support rail for setting up the live-roller and being slidably connected with the live-roller, the support rail includes screening unit and transport unit, and the screening unit is trough structure, and the transport unit is parallel with first transmission belt；The regulating device is for the pore size between two live-rollers in the screening unit, and the conveyer belt is for collecting the fruit fallen by the screening unit.The utility model can protect the fruit being sized not to be damaged, and the size that adjustment can be facilitated to sieve.

Description

A kind of fruit screening machine

Technical field

The utility model relates to screening technique field, specifically a kind of fruit screening machine.

Background technique

Now in the market, in each link such as the production and selling of fruit, screening has become wherein highly important one Link.The screening process of fruit is as attention of the important ring by businessman for producing fruit commodity in enormous quantities.Improve fruit Screening efficiency can allow fruit product quickly to enter market, drive the raising of entire sales section efficiency, obtain businessman more More profits.In the screening process of fruit, businessmans generally can classify to the fruit harvested by volume size, then Carry out points price sales.The screening work of fruit is mostly that worker manually completes under normal conditions, when small lot fruit, artificial screening behaviour It is not high to make fatigue strength, but when the screening work of high-volume fruit, manual operation fatigue strength is big, and sieving time is also grown.

Although there is the fruit screening machine of automation at present, structure is complicated for screening plant, operate it is single, be not achieved it is pre- The screening effect of phase, and more fruit screening machine sieves fruit using the method for vibration, therefore will cause fruit Damage, reduce the profit of businessman.Moreover, the screening size of current fruit screening machine is when factory it has been determined that not It can be suitable for the screening of different fruit, adjustment sieves the troublesome in poeration of size, is unfavorable for the use of businessman.

Utility model content

It solves the above problems to realize, the utility model provides a kind of fruit screening machine, and adjustment can be facilitated to sieve Size.

To achieve the goals above, the technical solution adopted in the utility model are as follows:

A kind of fruit screening machine, including screening mechanism, driving motor, conveyer belt and fixed frame,

The screening mechanism includes two the first driving drums, two the first transmission belts, several supporting elements, several transmissions Roller, two support rails and an at least regulating device, two the first driving drum parallel interval settings, the first transmission rolling Cylinder is rotatablely connected with the fixed frame, and the both ends of each first driving drum are respectively equipped with driving wheel, and two described first Transmission belt is located at the opposite end of first driving drum, and each first drive belt ring is around in the institute with respective side It states on driving wheel (111), the driving motor is connect with wherein 1 first driving drum；Several supporting elements are uniform It is laid on first transmission belt and is equipped with sliding mouth, the live-roller both ends pass through the sliding mouth and the support respectively Part is slidably connected；Two support rails are fixedly connected with the fixed frame and set up respectively the live-roller opposite end, With the motion guide to the live-roller, the support rail includes screening unit and transport unit, the head and the tail of the screening unit respectively with The transport unit is fixedly connected, and the screening unit is at least provided with one and is trough structure, and the transport unit and described first pass It moves with parallel；

The quantity of the regulating device is identical as the quantity of the screening unit, and the regulating device includes two and is oppositely arranged The first adjusting rod, two the second adjusting rods being oppositely arranged, a third adjusting rod, fixed plate and regulating part, two described One adjusting rod and two second adjusting rods are located at the opposite sides of the screening unit, two first adjusting rod one end It is slidably connected respectively with two support rails by roller bearing, the other end is cut with scissors with one end of two second adjusting rods respectively It connecing, the other end of two second adjusting rods is fixed by the connecting rod connection, and the connecting rod and the fixed frame are rotatablely connected, The third adjusting rod is fixedly connected and parallel with the connecting rod with the second adjusting rod described in one of them, the fixed plate with The fixed frame connection, the fixed plate are equipped with an arc groove, and the third adjusting rod is pierced by the arc groove, the adjusting Part one end is connect by nut with the connecting rod, and the other end is connect by nut with the third adjusting rod；When the transmission When roller moves to the screening unit, two first adjusting rods are respectively used to support the opposite end of the live-roller, adjustment The relative position of first adjusting rod and the screening unit, it is big to change the gap between live-roller at the screening unit It is small；

The conveyer belt is located at the lower section of the screening unit, for collecting the fruit fallen by the screening unit.

It further, further include feed mechanism, the feed mechanism is erected at the screening mechanism by the fixed frame Top, the feed mechanism is sequentially connected with the first driving drum for not connecting with the driving motor.

Further, first transmission belt is chain, and the driving wheel is the sprocket wheel used with the chain interoperation, institute The each section for stating the first transmission belt is fixedly connected with a supporting element.

Further, the length of first adjusting rod is greater than or equal to the maximum width of the screening unit trough.

Further, the one side of the regulating part towards the fixed plate is equipped with skid-proof rubber.

It further, further include transmission mechanism, the transmission mechanism includes the first sector gear, the second sector gear, passes Moving axis and the 4th transmission belt, first sector gear are fixedly connected with first driving drum, second sector gear It being fixedly connected with the transmission shaft and is engaged with first sector gear, the transmission shaft and the fixed frame are rotatablely connected, The conveyer belt is connect by the 4th transmission belt with the transmission shaft driven.

Further, the conveyer belt includes that band body, the second driving drum, bracket and support rod, the bracket are located at institute It states between band body, the quantity of the second driving drum is two, and two the second driving drums are rotationally installed in the branch respectively On frame, band body both ends are connect with two second driving drums respectively, and the support rod is concave structure, the support rod Pass through buffer spring respectively positioned at described between the body and both ends of the support rod and abutted with the bracket, the support rod On be rotationally socketed with rotation axis, the support rod is slidably connected by rotation axis and the band body.

Further, the band body is equipped with anti-bias strip, the second driving drum and rotation axis is equipped with and institute State the snap ring of anti-bias strip cooperation.

The utility model has the beneficial effects that

1. there are two the first driving drum is set and both ends are respectively equipped with driving wheel, the first transmission belt both ends pass through transmission respectively Wheel is connect with two first driving drums, and driving motor is connect by the second transmission belt with a certain first driving drum, in driving electricity The effect of machine, the first driving drum drive the first conveyor belt motion, and live-roller is mobile with the supporting element on the first transmission belt；When When live-roller is moved to screening unit, two live-rollers are in the different height of sliding mouth under gravity, thus two live-rollers Between gap change so that be less than gap length fruit drop out live-roller；Two live-rollers are adjusted by adjusting device Between gap, make between the live-roller in different screening unit have different gaps, realize the screening of fruit.

2. unscrewing the nut of third adjusting rod, third adjusting rod is slided in arc groove, by adjusting third Adjusting rod is in the different location of arc groove, so that the first adjusting rod is stretched or shunk by the second adjusting rod, changes the Angle between one adjusting rod and screening unit realizes fruit screening size so that the gap between two live-rollers changes Adjustment.

3. the first sector gear is fixedly connected with the drive shaft of driving motor, the second sector gear is fixedly connected with transmission shaft And engaged with the first sector gear, conveyer belt is sequentially connected by the 4th transmission belt and drive rod.In the drive of the first sector gear Under dynamic, the second sector gear drives drive rod rotation, under the action of four transmission belts, conveyer belt operation, so that in screening unit The fruit fallen is transported out, convenient for the collection to fruit.

4. under the drive of the motor, the first transmission belt is driven by the first driving drum, the transmission and screening of fruit are realized；Together When, the first driving drum drives feed mechanism, realizes the feeding of fruit；First driving drum also can to the first sector gear into Row driving, by gear drive, conveyer belt is moved.The utility model can be to multiple mechanisms only with a motor Radial drive reduces the structure of machine, and can economize on resources.Meanwhile it can also be square when machine breaks down Just it safeguards.

5. band body is changed to concave structure under the action of support rod, prevent fruit from skidding off when falling conveyer belt；Branch Strut is located between band body and both ends pass through buffer spring respectively and abut with bracket, and buffer spring can provide for the fruit fallen Cushion effect prevents fruit from damaging；Due to being that the position that concave structure and fruit are fallen is uncontrollable with body, when fruit falls on band body Non-center position when be easy to make band body to occur deviateing the second driving drum, band body is equipped with anti-bias card in the utility model The case where item, the second driving drum and rotation axis are equipped with the snap ring with the cooperation of anti-bias strip, and band body can be effectively prevent to deviate Occur.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the fruit screening machine of one better embodiment of the utility model.

Fig. 2 is the support rail structural schematic diagram of the fruit screening machine of one better embodiment of the utility model.

Fig. 3 is the supporting piece structure schematic diagram of the fruit screening machine of one better embodiment of the utility model.

Fig. 4 is the regulating device structural schematic diagram of the fruit screening machine of one better embodiment of the utility model.

Fig. 5 is the regulating device top view of the fruit screening machine of one better embodiment of the utility model.

Fig. 6 is the regulating device side view of the fruit screening machine of one better embodiment of the utility model.

Fig. 7 is the schematic diagram of transmission mechanism of the fruit screening machine of one better embodiment of the utility model.

Fig. 8 is the schematic cross-section of the conveyor structure of the fruit screening machine of one better embodiment of the utility model.

Fig. 9 is the second driving drum structural schematic diagram of the fruit screening machine of one better embodiment of the utility model.

In figure, 1- screening mechanism, the first driving drum of 11-, 111- driving wheel, the first transmission belt of 12-, 13- supporting element, 131- slides mouth, 14- live-roller, 15- support rail, 151- screening unit, 152- transport unit, 2- driving motor, the transmission of 21- second Band, 3- conveyer belt, 31- band body, 311- anti-cheat strip, the second driving drum of 32-, 33- bracket, 34- support rod, 341- buffering Spring, 35- rotation axis, 36- snap ring, 4- fixed frame, 5- regulating device, the first adjusting rod of 51-, 511- roller bearing, 52- second are adjusted Bar, 521- connecting rod, 53- third adjusting rod, 54- fixed plate, 541- arc groove, 55- regulating part, 56- nut, 6- feeder Structure, 61- third transmission belt, the first sector gear of 7-, the second sector gear of 71-, 72- drive rod, the 4th transmission belt of 73-.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes Any and all combinations of one or more related listed items.

Please referring also to Fig. 1 to Fig. 7, a kind of fruit screening machine, including it is screening mechanism 1, driving motor 2, conveyer belt 3, solid Determine frame 4, feed mechanism 6 and transmission mechanism, fixed frame 4 is used for the placement and peace of screening mechanism 1, driving motor 2 and conveyer belt 3 Dress.

Screening mechanism 1 includes two the first driving drums 11, two the first transmission belts 12, several supporting elements 13, Ruo Ganchuan Dynamic 14, two support rails 15 of roller and an at least regulating device 5.

Two the first driving drums 11 are oppositely arranged in parallel, and are rotationally installed on fixed frame 4.Every one first transmission The opposite end of roller 11 is respectively equipped with driving wheel 111, and two the first transmission belts 12 are located at the phase of the first driving drum 11 To both ends, every one first transmission belt 12 is surrounded on the driving wheel 111 of respective side, and driving motor 2 is rolled with wherein one first transmission Cylinder 11 connects, and to drive the rotation of the first driving drum 11, and then two the first transmission belts 12 is driven to move synchronously.

Several supporting elements 13 are uniformly distributed on the first transmission belt 12 and equipped with sliding mouth 131,14 both ends of live-roller difference It is slidably connected by sliding mouth 131 with supporting element 13；Two support rails 15 are fixedly connected with fixed frame 4 and set up transmission respectively The opposite end of roller 14, with the motion guide to live-roller 14.Support rail 15 includes screening unit 151 and transport unit 152, screening The head and the tail in portion 151 are fixedly connected with transport unit 152 respectively, and screening unit 151 is at least provided with one and is trough structure, transport unit 152 is parallel with the first transmission belt 12.

In the effect of driving motor 2, the first driving drum 11 drives the movement of the first transmission belt 12, and live-roller 14 is with first Supporting element 13 on transmission belt 12 is mobile；When live-roller 14 is moved to screening unit 151, two live-rollers 14 are under gravity Different height in sliding mouth 131, so that the gap between two live-rollers 14 changes, so that being less than the water of gap length Fruit drops out live-roller 14；The gap between two live-rollers 14 is adjusted by adjusting device 5, makes the biography in different screening unit 151 There are different gaps between dynamic roller 14, realize the screening of fruit, effect of the fruit not being sized in the first transmission belt 12, edge Transport unit 152 it is mobile, and enter screening unit 151.

In the present embodiment, the first transmission belt 12 is chain, and driving wheel 111 is the sprocket wheel used with chain interoperation, first Each section of transmission belt 12 is fixedly connected with a supporting element 13.

The quantity of regulating device 5 is identical as the quantity of screening unit 151, regulating device 5 include two be oppositely arranged first Adjusting rod 51, two 52, third adjusting rods 53 of the second adjusting rod, fixed plate 54 and the regulating parts 55 being oppositely arranged.

Two first adjusting rods 51 and two second adjusting rods 52 are located at the opposite sides of screening unit 151, two first tune 51 one end of pole is slidably connected respectively by roller bearing 511 with two support rails 15, the other end respectively with two the second adjusting rods 52 One end it is hinged, the other ends of two second adjusting rods 52 is fixedly connected by connecting rod 521, and connecting rod 521 and fixed frame 4 rotate Connection, third adjusting rod 53 are fixedly connected and parallel with connecting rod 521 with one of them second adjusting rod 52, fixed plate 54 with consolidate Determine the connection of frame 4, fixed plate 54 is equipped with an arc groove 541, and third adjusting rod 53 is pierced by arc groove 541, and 55 one end of regulating part is logical It crosses nut 56 to connect with connecting rod 521, the other end is connect by nut 56 with third adjusting rod 53；When live-roller 14 moves to When screening unit 151, two the first adjusting rods 51 are respectively used to the opposite end of support live-roller 14, the first adjusting rod 51 of adjustment with The relative position (Fig. 2) of screening unit 151, to change the pore size being located at screening unit 151 between live-roller 14.

In the present embodiment, when live-roller 14 moves to screening unit 151, two the first adjusting rods 51 are respectively used to support The opposite end of the live-roller 14 enables third to adjust 53 bars along arc by unscrewing the nut on third adjusting rod 53 Slided in shape slot 541, the different location of arc groove 541 be in by adjusting third adjusting rod 53 so that the second adjusting rod 52 with The end of first adjusting rod 51 connection is rotated centered on connecting rod 521, and the first adjusting rod 51 is driven to be equipped with one end of roller bearing 511 It is slided along support rail 15, to change the tilt angle of the first adjusting rod 51, and then changes the first adjusting rod 51 and screening unit 151 Relative positional relationship realize the adjustment of fruit screening size so that the gap between two live-rollers 14 changes.

In the present embodiment, the length of the first adjusting rod 51 is greater than or equal to the maximum width of 151 trough of screening unit, can Effectively prevent live-roller 14 to be stuck between screening unit 151 and the second adjusting rod 52, and caused by the failure of screening and the damage of machine Ring.The one side of regulating part 55 towards fixed plate 54 is equipped with skid-proof rubber.Skid-proof rubber can effectively increase third adjusting rod 53 in fixation Stability on plate 54, if third adjusting rod 53 loosens in fixed plate 54, when live-roller 14 falls on the first adjusting When momentum when bar 51 causes 52 rotational angle of the second adjusting rod to be changed, the first adjusting rod 51 and screening unit 151 can be caused Angle changes, and the accuracy of such fruit screening will reduce.

Feed mechanism 6 is erected at the top of screening mechanism 1 by fixed frame 4, feed mechanism 6 with do not connect with driving motor 2 The first driving drum 11 transmission connection connect.By feed mechanism 6, sorting mechanism can be entered convenient for fruit.

Conveyer belt 3 is located at the lower section of screening unit 151, and for collecting the fruit fallen by screening unit 151.Transmission mechanism packet Include the first sector gear 7, the second sector gear 71, transmission shaft 72 and the 4th transmission belt 73, the first sector gear 7 and the first transmission Roller 11 is fixedly connected, and the second sector gear 71 is fixedly connected with transmission shaft 72 and engages with the first sector gear 7, transmission shaft 72 It is rotatablely connected with fixed frame 4；Conveyer belt 3 is sequentially connected by the 4th transmission belt 73 with transmission shaft 72.In the work of driving motor 2 With the first driving drum 11 drives the rotation of the first sector gear 7, while changing transmission direction by gear-driven mode, makes Obtaining the second sector gear 71 can drive transmission shaft 72 to rotate.Under the action of 4th transmission belt 73, conveyer belt 3 is run, so that The fruit that screening unit 151 is fallen is transported out, convenient for the collection to fruit.

Conveyer belt 3 includes band body 31, the second driving drum 32, bracket 33 and support rod 34, bracket 33 be located at band body 31 it Between, the quantity of the second driving drum 32 is two, and two are rotatably installed on bracket 33, one of them second driving drum 32 It is sequentially connected by the 4th transmission belt 73 with transmission shaft 72.Band 31 both ends of body are connect with two second driving drums 32 respectively；Support Bar 34 be concave structure, support rod 34 be located at between the body 31 and both ends of support rod 34 pass through respectively buffer spring 341 with Bracket 33 abuts, and rotation axis 35 is rotationally socketed on support rod 34, and support rod 34 slides company with body 31 by rotation axis 35 It connects.

In the present embodiment, the second driving drum 32 drives band body 31 to rotate by driving motor 2, in the work of support rod 34 Under, band body 31 is changed to concave structure, prevents fruit from skidding off when falling conveyer belt 3；Buffer spring 341 can be to fall Fruit provide cushion effect, prevent fruit from damaging.

Band body 31 is equipped with anti-bias strip 311, and the second driving drum 32 and rotation axis 35 are equipped with to be cooperated with anti-bias strip 311 Snap ring 36.Due to being that the position that falls of concave structure and fruit is uncontrollable with body 31, when fruit is fallen in non-with body 31 It is easy to make with appearance the second driving drum 32 of deviation of body 31 when heart position, and the anti-bias strip 31 being equipped with, it can guarantee band Body 31 still being capable of stable operation when by non-central impulse force, it is therefore prevented that band body 31 and the second driving drum 32 occur partially From.

Screening process of the utility model to fruit are as follows:

According to the size of required fruit and the size of required screening, by unscrewing the nut on third adjusting rod 53, so that Third adjusts 53 bars and can arcuately slot 541 slide, and the suitable position of arc groove 541 is in by adjusting third adjusting rod 53, So that one end that the second adjusting rod 52 is able to drive the first adjusting rod 51 moves along support rail 15 and is stretched or shunk, thus Change the angle between the first adjusting rod 51 and screening unit 151, so that the gap at screening unit 151 between two live-rollers 14 occurs Variation.Several regulating devices are adjusted, so that the screening size along the screening unit 151 of 12 direction of motion of the first transmission belt successively increases Greatly.

Fruit is put into feed mechanism 6, the fruit on feed mechanism 6 is transferred in sorting mechanism 1, when fruit is with biography When dynamic roller 14 moves to screening unit 151, less than in screening unit 151 between two live-rollers 14 gap fruit, drop out live-roller 14, Remaining fruit continuously moves to next screening unit 151 along transport unit 152 and carries out screening process.In the effect of driving motor 2 Under, the first driving drum 11 drives the rotation of the first sector gear 7, while changing transmission direction by gear-driven mode, makes Obtaining the second sector gear 71 can drive drive rod 72 to rotate.Under the action of 4th transmission belt 73, conveyer belt 3 is run, so that The fruit that screening unit 151 is fallen is transported out, and completes screening process.

Claims

1. a kind of fruit screening machine, which is characterized in that including screening mechanism (1), driving motor (2), conveyer belt (3) and fixed frame (4),

The screening mechanism (1) includes two the first driving drums (11), two the first transmission belts (12), several supporting elements (13), several live-rollers (14), two support rails (15) and an at least regulating device (5), two first driving drums (11) parallel interval is arranged, and first driving drum (11) and the fixed frame (4) are rotatablely connected, each first transmission The both ends of roller (11) are respectively equipped with driving wheel (111), and two first transmission belts (12) are located at first transmission The opposite end of roller (11), each first transmission belt (12) are surrounded on the driving wheel (111) with respective side, institute Driving motor (2) is stated to connect with wherein 1 first driving drum (11)；Several supporting elements (13) are uniformly distributed in institute Sliding mouth (131) is stated on the first transmission belt (12) and is equipped with, live-roller (14) both ends pass through the sliding mouth (131) respectively It is slidably connected with the supporting element (13)；Two support rails (15) are fixedly connected with the fixed frame (4) and difference frame If live-roller (14) opposite end, with the motion guide to the live-roller (14), the support rail (15) includes screening The head and the tail of portion (151) and transport unit (152), the screening unit (151) are fixedly connected with the transport unit (152) respectively, described Screening unit (151) is at least provided with one and is trough structure, and the transport unit (152) is equal with the first transmission belt (12) Row；

The quantity of the regulating device (5) is identical as the quantity of the screening unit (151), and the regulating device (5) includes two The first adjusting rod (51), two the second adjusting rods (52) being oppositely arranged, a third adjusting rod (53), fixation being oppositely arranged Plate (54) and regulating part (55), two first adjusting rods (51) and two second adjusting rods (52) are located at the screening The opposite sides in portion (151), two described first adjusting rod (51) one end by roller bearing (511) respectively with two support rails (15) it is slidably connected, the other end is hinged with one end of two second adjusting rods (52) respectively, two second adjusting rods (52) the other end is fixedly connected by connecting rod (521), and the connecting rod (521) and the fixed frame (4) are rotatablely connected, institute Third adjusting rod (53) is stated to be fixedly connected with the second adjusting rod (52) described in one of them and parallel with the connecting rod (521), The fixed plate (54) connect with the fixed frame (4), and the fixed plate (54) is equipped with an arc groove (541), the third Adjusting rod (53) is pierced by the arc groove (541), and described regulating part (55) one end passes through nut (56) and the connecting rod (521) Connection, the other end are connect by nut (56) with the third adjusting rod (53)；When the live-roller (14) moves to the sieve When selecting portion (151), two first adjusting rods (51) are respectively used to support the opposite end of the live-roller (14), adjust institute The relative position of the first adjusting rod (51) Yu the screening unit (151) is stated, is located at live-roller at the screening unit (151) to change (14) pore size between；

The conveyer belt (3) is located at the lower section of the screening unit (151), for collecting the water fallen by the screening unit (151) Fruit.

2. a kind of fruit screening machine according to claim 1, it is characterised in that: further include feed mechanism (6), the feeding Mechanism (6) is erected at the top of the screening mechanism (1) by the fixed frame (4), the feed mechanism (6) with not with it is described The first driving drum (11) transmission connection of driving motor (2) connection.

3. a kind of fruit screening machine according to claim 1, it is characterised in that: first transmission belt (12) is chain, The driving wheel (111) is the sprocket wheel used with the chain interoperation, each section of first transmission belt (12) with an institute Supporting element (13) is stated to be fixedly connected.

4. a kind of fruit screening machine according to claim 1, it is characterised in that: the length of first adjusting rod (51) is big In or be equal to the screening unit (151) trough maximum width.

5. a kind of fruit screening machine according to claim 1, it is characterised in that: the regulating part (55) is towards the fixation The one side of plate (54) is equipped with skid-proof rubber.

6. a kind of fruit screening machine according to claim 1, it is characterised in that: it further include transmission mechanism, the driver Structure includes the first sector gear (7), the second sector gear (71), transmission shaft (72) and the 4th transmission belt (73), first fan Shape gear (7) is fixedly connected with first driving drum (11), second sector gear (71) and the transmission shaft (72) It is fixedly connected and is engaged with first sector gear (7), the transmission shaft (72) and the fixed frame (4) are rotatablely connected, institute Conveyer belt (3) are stated to be sequentially connected by the 4th transmission belt (73) and the transmission shaft (72).

7. a kind of fruit screening machine according to claim 1, it is characterised in that: the conveyer belt (3) include band body (31), Second driving drum (32), bracket (33) and support rod (34), between the band body (31), second passes the bracket (33) The quantity of dynamic roller (32) is two, and two the second driving drums (32) are rotationally installed in respectively on the bracket (33), Band body (31) both ends are connect with two second driving drums (32) respectively, and the support rod (34) is concave structure, institute Support rod (34) are stated between the band body (31) and the both ends of the support rod (34) pass through buffer spring (341) respectively It abuts with the bracket (33), is rotationally socketed with rotation axis (35) on the support rod (34), the support rod (34) passes through Rotation axis (35) is slidably connected with the band body (31).

8. a kind of fruit screening machine according to claim 7, it is characterised in that: the band body (31) is equipped with anti-bias strip (311), second driving drum (32) and the rotation axis (35) are equipped with the snap ring with anti-bias strip (311) cooperation (36)。