CN217806748U - Ball conveying mechanism and intelligent fruit and vegetable sorting equipment - Google Patents

Abstract

The utility model discloses a ball conveying mechanism and intelligent fruit and vegetable sorting equipment, which comprises a conveying chain, wherein the conveying chain is driven by a front chain wheel and a rear chain wheel in the whole equipment, and the conveying chain is driven by the chain wheels to rotate in a reciprocating manner; the conveying chain is connected with a rotating shaft bracket, and the rotating shaft bracket moves synchronously along with the movement of the conveying chain; a rotating shaft penetrates through the rotating shaft support, a friction wheel and a ball are arranged on the rotating shaft, friction strips are arranged above or/and below the friction wheel, and when the rotating shaft moves synchronously along with the conveying chain, the friction wheel rotates under the friction action of the friction strips; the rotating shaft is in running fit with the rotating shaft support, the friction wheel, the balls and the rotating shaft are fixedly connected in the circumferential direction, the friction wheel rotates to drive the rotating shaft to rotate synchronously, and then the rotating shaft drives the balls to rotate synchronously. The utility model discloses simple structure, assembly accuracy height, cost of manufacture low, long service life.

Description

Ball conveying mechanism and intelligent fruit and vegetable sorting equipment

Technical Field

The utility model relates to a transport mechanism technical field especially indicates a ball conveying mechanism and fruit vegetables intelligence sorting facilities.

Background

At present, in domestic intelligent fruit and vegetable sorting equipment, the fruits and vegetables are conveyed to each processing mechanism by adopting a conveying mechanism for processing, particularly, the fruits and vegetables, such as red dates, cherry tomatoes, wild jujubes and walnuts are sorted, and are conveyed by using a ball conveying mechanism. The utility model discloses a high-speed letter sorting roller structure as disclosed in the chinese utility model patent that the grant bulletin date is 2020.04.14, the grant bulletin number is CN 210304618U, including center pin, chain and roller, chain fixed connection is on the center pin, the roller rotates the cover and locates the center pin both ends, the roller is close to chain one side fixedly connected with sleeve, the sleeve rotates with the center pin to be connected, and the sleeve keeps away from roller one end lateral wall fixedly connected with gear, gear swing joint has the rack, the rack is fixed to be set up in the gear below.

Above-mentioned utility model patent through the sleeve at the terminal cooperation installation of roller and with sleeve fixed connection's gear for the chain when driving the roller and carry out linear motion, the gear can produce the meshing motion with the fixed rack that sets up in below, thereby produces the friction and drives the roller rotation. With the roller structure, the following defects still exist in use:

(1) The shafting transmission assembly is too complex, not only is provided with a plurality of bearings, spacer bushes and gears, but also adopts double rows of common chains for synchronous driving, and the accumulated error is larger when the whole shafting is assembled; the roller structure used as the intelligent fruit and vegetable sorting equipment has hundreds of roller structures, and accumulated errors seriously affect the assembly and debugging efficiency and the conveying effect of fruits and vegetables during application;

(2) Two common chains are adopted as driving, a plurality of central shafts vertical to the chains are fixedly inserted on each chain, the central shafts are driven to do linear motion when the chains do linear motion, all the central shafts do not do rotary motion, and the rollers, the sleeves and the gears which are arranged on the central shafts rotate through the meshing of the gears and the racks; the rollers and the sleeves rotate relative to the central shaft, so that the inner hole abrasion of the rotation parts can be accelerated, and the service life of the rotation parts can be shortened; the number of the roller structures is hundreds of thousands, so that the roller cannot be made of wear-resistant metal materials, and the roller, the sleeve and the gear are made of light plastic products, so that the service life of the roller is inevitably too short;

(3) Each single side of the chain is in meshing transmission with a rack below the chain by adopting gears which are staggered with each other, and the gears drive the rollers to rotate around the central shaft through the sleeves; that is, a plurality of gears are arranged on each side and are meshed with a whole rack below the gears, the arrangement design mode requires that the distance precision between the adjacent central shafts is very high, otherwise hundreds of gears cannot be meshed with the racks below the gears simultaneously; therefore, the structure not only requires very high precision of part processing, but also requires very high precision of assembly, resulting in higher production cost and lower production efficiency.

Disclosure of Invention

To not enough among the above-mentioned background art, the utility model provides a ball conveying mechanism and fruit vegetables intelligence sorting facilities has solved the technical problem that current ball conveying mechanism assembly error is big, manufacturing cost is high, production efficiency is low and life is short.

The technical scheme of the application is as follows:

a ball conveying mechanism comprises a conveying chain, wherein the conveying chain is driven by a front chain wheel and a rear chain wheel in the whole machine equipment, and the conveying chain is driven by the chain wheels to rotate in a reciprocating manner; the conveying chain is connected with a rotating shaft bracket, and the rotating shaft bracket moves synchronously along with the movement of the conveying chain; a rotating shaft penetrates through the rotating shaft support to rotate, a friction wheel and a ball are arranged on the rotating shaft, friction strips are arranged above or/and below the friction wheel, and when the rotating shaft moves synchronously along with the conveying chain, the friction wheel rotates under the friction action of the friction strips; friction pulley, ball and pivot circumference fixed connection, the friction pulley rotation can drive the pivot synchronous revolution, then the pivot can drive the ball synchronous revolution.

Furthermore, the rotating shaft support comprises a U-shaped clamping part, the clamping part is clamped and matched with the conveying chain, and the rotating shaft support and the conveying chain are connected by adopting a clamping structure, so that the structure is simple, the processing cost is low, and the assembly, the disassembly and the maintenance are convenient; the clamping portion is provided with a positioning hole, and a pin shaft of the conveying chain is in plug-in fit with the positioning hole, so that convenience and connection reliability of assembly are fully guaranteed.

Furthermore, a shaft hole is formed in the rotating shaft support, a sleeve is arranged in the shaft hole, and the rotating shaft is matched with the sleeve in a rotating mode. Set up sleeve and pivot and mutually support, avoided pivot support and the direct friction fit of pivot, can enough guarantee the life of pivot support, need not adopt the heavier metal material of quality to make the pivot support again, only need with the sleeve set up into wear-resisting sleeve can, do not increase drive mechanism's weight when guaranteeing life.

Furthermore, the conveying chain is a double-pitch large-roller conveying chain, two rotating shafts are arranged on each rotating shaft support, and friction wheels on adjacent rotating shafts are arranged in a staggered mode. The double-pitch large-roller conveying chain is adopted, so that the structure is simplified, the assembly and the positioning are convenient, and the conveying process is stable and reliable.

Furthermore, the friction wheel and the ball on the same side of the rotating shaft are connected with each other, the friction wheel can drive the ball to rotate through the rotating shaft, torque can be directly transmitted to the ball, and meanwhile, the mutual axial positioning effect can be formed between the friction wheel and the ball.

Furthermore, the friction wheel comprises a friction wheel body and a connecting cylinder which are coaxially arranged, the connecting cylinder is fixedly connected with the circumferential direction of the rotating shaft, one end of the connecting cylinder is in clearance fit with the rotating shaft bracket, and the side surfaces of the connecting cylinder and the friction wheel are prevented from being rubbed with the rotating shaft bracket or the sleeve; the other end of the connecting cylinder is connected with the ball, and the end, close to the rotating shaft bracket, of the connecting cylinder and the outer end part of the ball are provided with check rings so as to reliably position the friction wheel and the ball and generate axial displacement; the outer side of the check ring at the outer end part of the ball is provided with the elastic check ring, and the check ring at the outer end part of the ball can also prevent the outer side face of the ball from being in direct contact with the elastic check ring, so that the service life of the ball is prevented from being reduced.

Furthermore, a cross rib is arranged in an inner cavity of the ball, a disc is coaxially arranged at the end part of the connecting cylinder, and the circumferential surface of the disc is in clamping fit with the inner wall of the inner cavity of the ball, so that the reliability of axial connection and the accuracy of axial positioning are ensured; the disc is provided with a positioning cylinder, the positioning cylinder is provided with an axial positioning groove, and the positioning groove is matched with the cross rib in a clamping manner, so that the reliability of axial and circumferential connection is ensured.

Further, the ball includes half left and half right, and the ball of being convenient for is moulded and is annotated shaping and drawing of patterns, and half left and half right grafting cooperation, the generating line of friction pulley are the arc line of indent, guarantee to carry the reliability of fruit vegetables. The circumferential surface of the friction wheel is provided with a plurality of convex ribs distributed at intervals, so that the fruits and vegetables such as red dates, cherry tomatoes and walnuts can be guaranteed to rotate at 360 degrees accurately in the conveying process, and the detection qualified rate of a vision system is improved.

Furthermore, the part of the rotating shaft, the friction wheel and the ball is assembled to form a non-rotating body, so that the rotating shaft, the friction wheel and the ball are guaranteed.

The intelligent fruit and vegetable sorting equipment comprises the ball conveying mechanism, and is simple in structure, high in assembly precision, low in manufacturing cost and long in service life.

Compared with the prior art, the beneficial effects of the utility model include:

(1) The whole part has compact structure and low assembly precision; the assembly precision of other parts can be ensured only by assembling the rotating shaft and the rotating shaft bracket in place without adopting a plurality of chains, bearings and spacer bushes;

(2) The whole structure is novel, and the balls and the rotating shaft do not move mutually in the rotating process of the balls, so that the balls of the whole conveying mechanism can be ensured to always keep running at a constant speed;

(3) The driving mode of meshing a gear and a rack is avoided, the friction wheel and the friction strip are mutually assembled, the friction wheel is driven to rotate through mutual friction between the friction wheel and the friction strip, and then the friction wheel drives the ball to rotate through the rotating shaft;

(4) The service life of the ball is long, and the friction between the ball and the rotating shaft is avoided through the rotating fit between the rotating shaft and the rotating shaft bracket, so that the service life of the ball can be effectively prolonged;

(5) Further, the ball includes half left and half right, and the ball of being convenient for is moulded and is annotated shaping and drawing of patterns, and half left and half right grafting cooperation, the generating line of friction pulley are the arc line of indent, guarantee to carry the reliability of fruit vegetables. The circumferential surface of the friction wheel is provided with a plurality of convex ribs distributed at intervals, so that the fruits and vegetables such as red dates, cherry tomatoes and walnuts can be guaranteed to rotate at 360 degrees accurately in the conveying process, and the detection qualified rate of a vision system is improved.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic perspective view of the present invention in use;

FIG. 2 is a front view of the utility model in use;

FIG. 3 is a top view of the present invention in use;

FIG. 4 is a bottom view of the utility model in use;

FIG. 5 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 3;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 7 is a perspective view of the middle shaft of the present invention;

FIG. 8 is a perspective view of a first view angle of the middle-length friction wheel according to the present invention;

FIG. 9 is a perspective view of a second view angle of the middle-length friction wheel according to the present invention;

fig. 10 is a three-dimensional structure diagram of a first view angle of the middle-short friction wheel of the present invention;

FIG. 11 is a perspective view of a second perspective view of the middle-short friction wheel of the present invention;

fig. 12 is a three-dimensional structure view of the split ball of the present invention;

reference numbers in the figures: the device comprises a conveying chain 1, a rotating shaft support 2, a sleeve 3, a retainer ring 4, a friction strip 5, a long friction wheel 6, a short friction wheel 7, a disc 71, a positioning cylinder 72, a positioning groove 73, a connecting cylinder 74, a friction wheel body 75, a rotating shaft 8, a milling flat structure 81, a mounting groove 82, a split type ball 9, a cross rib 91, a convex rib 92, a mounting cylinder 93 and an elastic retainer ring 10.

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 of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A ball conveying mechanism is used for conveying fruits and vegetables such as red dates, cherry tomatoes, walnuts and the like, when a chain walks at a constant speed, the fruits and vegetables can rotate by 360 degrees under the action of balls, and detection and selection of a visual system are facilitated.

Specifically, as shown in fig. 1 to 4, a conveying chain 1 as a driving component is included, the conveying chain 1 is driven by a front chain wheel and a rear chain wheel in the whole machine equipment, and the conveying chain 1 is driven by the chain wheels to rotate in a reciprocating manner. The conveying chain 1 is connected with a rotating shaft support 2, and the rotating shaft support 2 moves synchronously along with the conveying chain 1. A rotating shaft 8 penetrates through the rotating shaft support 2, a friction wheel and a ball 9 are arranged on the rotating shaft 8, a friction strip 5 is arranged above or/and below the friction wheel, and when the rotating shaft 8 moves synchronously along with the conveying chain 1, the friction wheel 6 rotates under the friction action of the friction strip 5.

The pivot 8 and 2 normal running fit of pivot support, friction pulley, ball 9 and 8 circumference fixed connection of pivot, then 6 rotations of friction pulley can drive 8 synchronous rotations of pivot, and then 8 rotations can drive 9 synchronous rotations of ball, and the material on the ball 9 is along with conveying chain 1 forward motion on one side, and the rotation is between two balls 9 on one side.

As a preferred embodiment, the circumferential surface of the friction wheel is provided with raised lines, and the friction strip 5 is a rubber friction strip; or the peripheral surface of the friction wheel is a rubber friction surface, and the friction strip 5 is provided with raised grains; or the circumferential surface of the friction wheel and the friction strip 5 are both provided with raised grains, and the circumferential surface of the friction wheel and the friction strip 5 are both made of rubber materials.

As a preferred embodiment, pivot support 2 includes the joint portion of U-shaped, and joint portion and 1 joint cooperation of conveying chain adopt joint structure to connect pivot support 2 and conveying chain 1, and not only simple structure, processing cost are low, are convenient for assemble moreover, dismantle the maintenance.

Furthermore, the clamping portion is provided with a positioning hole, and a pin shaft of the conveying chain 1 is in plug-in fit with the positioning hole, so that convenience and connection reliability of assembly are fully guaranteed.

As a preferred embodiment, as shown in fig. 5 and 6, the shaft holder 2 is provided with a shaft hole, the sleeve 3 is disposed in the shaft hole, and the shaft 8 is rotatably engaged with the sleeve 3. Set up sleeve 3 and pivot 8 and mutually support, avoided pivot support 2 and the direct friction fit of pivot 8, can enough guarantee the life of pivot support 2, need not adopt the heavier metal material of quality preparation pivot support 2 again, only need with sleeve 3 set up to wear-resisting sleeve can, do not increase drive mechanism's weight when guaranteeing life.

Further, sleeve 3 preferably uses the tubular metal resonator, and the tubular metal resonator both can pre-buried in pivot support 2, also can dismantle with pivot support 2 and be connected.

In a preferred embodiment, the conveying chain 1 is a double-pitch large-roller conveying chain, two rotating shafts 8 are arranged on each rotating shaft bracket 2, and friction wheels on adjacent rotating shafts 8 are arranged in a staggered mode. The double-pitch large-roller conveying chain is adopted, so that the structure is simplified, the assembly and the positioning are convenient, and the conveying process is stable and reliable.

In a preferred embodiment, the friction wheel and the balls 9 on the same side of the rotating shaft 8 are connected with each other, the friction wheel 6 can drive the balls 9 to rotate through the rotating shaft 8, and can directly transmit torque to the balls 9, and meanwhile, the friction wheel 6 and the balls 9 can also perform mutual axial positioning.

As a preferred embodiment, as shown in fig. 8-11, the friction wheel includes a friction wheel body and a connecting cylinder 74 coaxially disposed, the connecting cylinder 74 is fixedly connected with the rotating shaft 8 in the circumferential direction, and one end of the connecting cylinder 74 is in clearance fit with the rotating shaft bracket 2, so as to prevent the side surfaces of the connecting cylinder 7 and the friction wheel 7 from rubbing against the rotating shaft bracket 2 or the sleeve 3. The gap is preferably 0.5mm.

The other end of the connecting cylinder 74 is connected with the ball 9, and the retainer rings 4 are arranged at one end of the connecting cylinder 74 close to the rotating shaft bracket 2 and at the outer end of the ball 9, so that the friction wheel 6 and the ball 9 are reliably positioned and axially displaced; the outer side of the retainer ring 4 at the outer end part of the ball 9 is provided with the elastic retainer ring 10, and the retainer ring 4 at the outer end part of the ball 9 can also prevent the outer side surface of the ball 9 from being in direct contact with the elastic retainer ring 10, so that the service life of the ball 9 is prevented from being reduced.

As a preferred embodiment, the friction wheels comprise a long friction wheel 6 and a short friction wheel 7, the long friction wheel 6 and the short friction wheel 7 being arranged crosswise along the conveyor chain 1.

The long friction wheel 6 and the short friction wheel 7 respectively comprise the friction wheel body 75, a disc 71, a positioning barrel 72, a positioning groove 73 and a connecting barrel 74. The diameters of the friction wheel bodies of the long friction wheel 6 and the short friction wheel 7 are the same, and the sizes of the disc 71, the positioning cylinder 72, the positioning groove 73 and the connecting cylinder 74 are the same, but the relative positions of the long friction wheel 6 and the short friction wheel 7 and the connecting cylinder 74 are different, the friction wheel body of the long friction wheel 6 is located in the middle of the corresponding connecting cylinder 74, and the friction wheel body of the short friction wheel 7 is located at the end of the corresponding connecting cylinder 74.

Set up the friction pulley of two kinds, be convenient for guarantee that the friction pulley is crisscross to be set up on the adjacent pivot 8, not only save equipment length space, be convenient for moreover design, adjust the interval of adjacent ball 9.

As a preferred embodiment, as shown in fig. 12, a cross rib 91 is provided in the inner cavity of the ball 9, the cross rib 91 is connected between the outer wall of the ball 9 and a mounting tube 93, and the mounting tube 93 is provided in the axial direction of the ball 9. As shown in fig. 8-11, the end of the connecting cylinder 74 is coaxially provided with a disk 71, and the circumferential surface of the disk 71 is in snap fit with the inner wall of the inner cavity of the ball 9, so as to ensure the reliability of axial connection and the accuracy of axial positioning; the disc 71 is provided with a positioning cylinder 72, the positioning cylinder 72 is provided with an axial positioning groove 73, and the positioning groove 73 is in clamping fit with the cross rib 91 to ensure the reliability of axial and circumferential connection.

As a preferred embodiment, as shown in fig. 5 and 6, the ball 9 includes a left half and a right half, which facilitates the injection molding and demolding of the ball 9, the left half and the right half are in insertion fit, and the bus of the friction wheel is an inward-concave arc line, so as to ensure the reliability of conveying fruits and vegetables.

Further, as shown in fig. 12, a plurality of ribs 92 distributed at intervals are arranged on the circumferential surface of the friction wheel, so that the fruits and vegetables such as red dates, cherry tomatoes and walnuts can be precisely rotated by 360 degrees in the conveying process, and the detection qualification rate of the vision system is improved.

As a preferred embodiment, as shown in fig. 7, the portion where the rotating shaft 8 is assembled with the friction wheel and the ball 9 is a non-rotating body, for example, a structure body with an oval or rectangular cross section, and the inner holes of the friction wheel and the ball 9 are matched with each other, so that the reliability of circumferential fixing of the rotating shaft 8 with the friction wheel 6 and the ball 9 is ensured. The position of the rotating shaft 8 assembled with the rotating shaft bracket 2 is a cylinder, so that the rotating reliability of the rotating shaft 8 is ensured.

In a preferred embodiment, the part where the rotating shaft 8 is assembled with the friction wheel and the ball 9 is a milled flat structure 81, so that the machining is convenient and the cost is low. The elastic collar 10 is disposed in the mounting groove 82 of the rotating shaft 8.

The intelligent fruit and vegetable sorting equipment comprises the ball conveying mechanism, and is simple in structure, high in assembly precision, low in manufacturing cost and long in service life.

The present invention is not exhaustive and is well known to those skilled in the art.

The foregoing shows and describes the basic principles and features of the present invention, together with the advantages thereof. The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A ball conveying mechanism comprises a conveying chain (1), and is characterized in that: conveying chain (1) is connected with pivot support (2), passes pivot support (2) and rotates and be provided with pivot (8), is provided with friction pulley and ball (9) on pivot (8), and the top of friction pulley or below are provided with friction strip (5), and friction pulley, ball (9) and pivot (8) circumference fixed connection.

2. The ball delivery mechanism of claim 1, wherein: the rotating shaft support (2) comprises a U-shaped clamping portion, the clamping portion is matched with the conveying chain (1) in a clamping mode, the clamping portion is provided with a positioning hole, and a pin shaft of the conveying chain (1) is matched with the positioning hole in an inserting mode.

3. The ball conveying mechanism according to claim 1 or 2, wherein: the rotating shaft support (2) is provided with a shaft hole, a sleeve (3) is arranged in the shaft hole, and the rotating shaft (8) is matched with the sleeve (3) in a rotating mode.

4. The ball delivery mechanism of claim 3, wherein: the conveying chain (1) is a double-pitch large-roller conveying chain, two rotating shafts (8) are arranged on each rotating shaft support (2), and friction wheels on adjacent rotating shafts (8) are arranged in a staggered mode.

5. The ball delivery mechanism according to any one of claims 1, 2 and 4, wherein: and the friction wheel and the ball (9) on the same side of the rotating shaft (8) are connected with each other.

6. The ball delivery mechanism of claim 5, wherein: the friction wheel comprises a friction wheel body and a connecting cylinder (74) which are coaxially arranged, the connecting cylinder (74) is circumferentially and fixedly connected with the rotating shaft (8), one end of the connecting cylinder (74) is in clearance fit with the rotating shaft support (2), the other end of the connecting cylinder (74) is connected with the ball (9), one end of the connecting cylinder (74) close to the rotating shaft support (2) and the outer end of the ball (9) are both provided with a retainer ring (4), and the outer side of the retainer ring (4) at the outer end of the ball (9) is provided with an elastic retainer ring (10).

7. The ball delivery mechanism of claim 6, wherein: the novel ball bearing is characterized in that a cross rib (91) is arranged in an inner cavity of the ball (9), a disc (71) is coaxially arranged at the end part of the connecting cylinder (74), the circumferential surface of the disc (71) is matched with the inner wall of the inner cavity of the ball (9) in a clamping manner, a positioning cylinder (72) is arranged on the disc (71), an axial positioning groove (73) is formed in the positioning cylinder (72), and the positioning groove (73) is matched with the cross rib (91) in a clamping manner.

8. The ball delivery mechanism according to any one of claims 1, 2, 4, 6, 7, wherein: the ball (9) comprises a left half part and a right half part, the left half part and the right half part are in plug-in fit, a bus of the friction wheel is an inwards concave arc line, and a plurality of convex ribs (92) distributed at intervals are arranged on the circumferential surface of the friction wheel.

9. The ball delivery mechanism of claim 8, wherein: the part where the rotating shaft (8) is assembled with the friction wheel and the ball (9) is a non-revolving body.

10. The utility model provides a fruit vegetables intelligence sorting facilities which characterized in that: comprising a ball transfer mechanism according to any of claims 1-9.

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