CN109335519B - Stepping feeding device and system - Google Patents
Stepping feeding device and system Download PDFInfo
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- CN109335519B CN109335519B CN201811293031.5A CN201811293031A CN109335519B CN 109335519 B CN109335519 B CN 109335519B CN 201811293031 A CN201811293031 A CN 201811293031A CN 109335519 B CN109335519 B CN 109335519B
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- 230000033001 locomotion Effects 0.000 claims abstract description 68
- 230000007246 mechanism Effects 0.000 claims abstract description 66
- 238000007599 discharging Methods 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 47
- 230000000630 rising effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 32
- 239000010959 steel Substances 0.000 description 32
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007704 transition Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
- B65G25/02—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having different forward and return paths of movement, e.g. walking beam conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
- B65G2201/0217—Elongated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The application provides a stepping feeding device and a stepping feeding system. The track generating mechanism comprises an outer gear ring, a first planetary gear and a sun gear; the sun gear and the outer gear ring are coaxially arranged, the sun gear is meshed with the first planet gear, and the sun gear can be driven to rotate; the first planetary gears are arranged in the outer gear ring and meshed with the outer gear ring; the first planet gear is fixedly provided with an eccentric shaft. The discharging mechanism can be used for placing materials; the discharging mechanism is rotatably connected with the eccentric shaft; the first planetary gear can drive the discharging mechanism to move along a preset track through the eccentric shaft; the predetermined trajectory includes at least a vertical motion trajectory. The step feeding system comprises the step feeding device. The device and the system can take or discharge materials in the vertical movement track, so that the transported materials can move stably and the surface is not scratched.
Description
Technical Field
The application relates to the technical field of material transportation, in particular to a stepping feeding device and a stepping feeding system.
Background
The step feeder is a conveying machine capable of intermittently conveying materials and keeping the interval between them constant in step length, and is often required to horizontally convey the materials in a production workshop.
Taking a steel pipe production plant as an example, the diameter of a steel pipe is generally 60mm to 500 mm, the length of the steel pipe is generally 5 m to 30 m, even more than 30 m, and the weight of the steel pipe is generally several tons. Due to the above characteristics of the steel pipe, when the steel pipe needs to be horizontally conveyed, a plurality of existing step feeders need to be arranged in a row. The steel pipes are simultaneously placed in the V-shaped grooves on the multi-frame walking beams, wherein the walking beams are the object placing parts on the stepping feeder, and the V-shaped grooves are arranged on the walking beams. And synchronously running the multiple stepping feeders to finish horizontal conveying of the steel pipes. The ground is fixedly provided with a discharging beam corresponding to the walking beam, and the discharging beam is also provided with a V-shaped groove. The walking beam can take out the steel pipe from the discharging beam or put the steel pipe on the discharging beam.
In the existing step-type feeder, the motion track is usually a circular track or an elliptical track. Therefore, when the stepping feeder takes or discharges materials, the V-shaped groove on the stepping beam moves vertically or horizontally, and a component force in the horizontal direction can be generated on the contacted steel pipe.
When the steel pipe is lifted, the horizontal decomposition movement can squeeze the steel pipe to the side wall of the V-shaped groove of the discharging beam, one side of the steel pipe is contacted with the side wall of the V-shaped groove of the discharging beam, and the other side is contacted with the side wall of the V-shaped groove on the walking beam. At this time, the steel pipe contacts two V-shaped groove side walls with relative motion simultaneously, so that the surface of the steel pipe is scratched, and the surface quality of a steel pipe product is affected. When the steel pipe thoroughly breaks away from the V-shaped groove of the discharging beam, the steel pipe falls into the V-shaped groove of the walking beam and contacts with two sides of the V-shaped groove of the walking beam, and due to the inertia effect, the steel pipe can shake firstly and then is stabilized in the V-shaped groove on the walking beam.
When the steel pipe is put down, one side of the steel pipe is contacted with the side wall of the V-shaped groove of the discharging beam, and the other side is contacted with the side wall of the V-shaped groove on the walking beam. At this time, the steel pipe can not adapt to the two V-shaped grooves with relative motion through rolling, so that the surface of the steel pipe is scratched, and the surface quality of a steel pipe product is affected. When the steel pipe thoroughly breaks away from the V-shaped groove of the walking beam, the steel pipe falls into the V-shaped groove of the discharging beam and contacts with two sides of the V-shaped groove of the discharging beam, and due to the inertia effect, the steel pipe can shake firstly and then is stabilized in the V-shaped groove on the discharging beam.
In summary, due to the existence of the component force in the horizontal direction, the steel pipe moves unstably when being taken out or put down, and the surface of the steel pipe is easy to scratch.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides a stepping feeding device which can generate a vertical movement track so as to facilitate a discharging mechanism to take or discharge materials in the vertical movement track.
The technical scheme of the application is as follows:
a stepwise feeding device comprising:
a track generation mechanism; the track generating mechanism comprises an outer gear ring, a first planetary gear and a sun gear; the sun gear and the outer gear ring are coaxially arranged, the sun gear is meshed with the first planet gear, and the sun gear can be driven to rotate; the first planetary gears are arranged in the outer gear ring and meshed with the outer gear ring; the first planet gear is fixedly provided with an eccentric shaft;
a discharging mechanism capable of placing materials; the discharging mechanism is rotatably connected with the eccentric shaft; the first planetary gear can drive the discharging mechanism to move along a preset track through the eccentric shaft; the predetermined trajectory includes at least a vertical motion trajectory.
As a preferred embodiment, the radius of the outer ring gear is 2N times the radius of the first planetary gear, and N is a positive integer of 2 or more.
As a preferred embodiment, the radius of the outer ring gear is 4 times the radius of the first planetary gear.
As a preferred embodiment, when a line connecting the centers of the first planetary gears and the sun gear is parallel to the horizontal direction, the eccentric shaft is on the line and between the centers of the first planetary gears and the sun gear.
As a preferred embodiment, a rectangular coordinate system is established by taking the center of a circle of the sun gear as an origin of coordinates and taking the direction with an included angle of 45 degrees with the horizontal direction as the positive direction of the X-axis; the position point on the predetermined track satisfies the following relation:
wherein (x, y) is a position point on the predetermined trajectory, and x and y are in millimeters;
d is the eccentric distance of the eccentric shaft, and the unit is millimeter;
r is the radius of the outer gear ring, and the unit is millimeter;
r is the radius of the first planetary gear, and the unit is millimeter;
θ is the angle between the X axis and the straight line formed by connecting the position point (X, y) and the origin, and the unit is degree.
As a preferred embodiment, the first planetary gear is fixed with a concentric shaft, and the eccentric shaft is fixedly connected with the concentric shaft through a fixing plate; the sun gear is provided with a first side and a second side which are opposite to each other along the axial direction, and the fixed plate is arranged on the first side of the sun gear along the axial direction.
As a preferred embodiment, the discharging mechanism is rotatably connected with the eccentric shaft through a bearing.
As a preferred embodiment, the discharging mechanism comprises a supporting plate extending along the horizontal direction and a receiving part arranged on the supporting plate; the supporting plate is rotatably connected with the eccentric shaft; the discharging mechanism is located at the first side of the sun gear in the axial direction.
As a preferred embodiment, the trajectory generation mechanism further includes a second planetary gear, a third planetary gear, and a carrier; the first planetary gears, the second planetary gears and the third planetary gears are uniformly distributed around the sun gear, and the first planetary gears, the second planetary gears and the third planetary gears are meshed between the sun gear and the outer gear and connected through a planet carrier so as to synchronously move.
As a preferred embodiment, the device further comprises a driving gear; the track generating mechanisms are two; the eccentric shafts of the two track generating mechanisms are positioned on the same horizontal plane; the two track generating mechanisms are driven by the drive gear.
As a preferred embodiment, each of the track generating mechanisms is further provided with a driven gear coaxially provided with the sun gear; the drive gear drives the sun gear through the driven gear; the drive gear and the driven gear are located on a second side of the sun gear in an axial direction.
As a preferred embodiment, the device further comprises a driving motor for driving the driving gear; the driving motor is a gear motor or a hydraulic motor.
As a preferred embodiment, the predetermined trajectory includes a horizontal movement trajectory.
As a preferred embodiment, the predetermined trajectory includes a movement trajectory formed by a rising movement trajectory, a falling movement trajectory, a forward movement trajectory, and a backward movement trajectory, which is a quadrilateral overall.
A stepwise feeding system comprising: the stepwise feeding device according to any of the above embodiments.
The beneficial effects are that:
in the stepping feeding device in the embodiment, the first planet gear can drive the discharging mechanism to move along a preset track through the eccentric shaft, and the preset track at least comprises a vertical movement track. When the discharging mechanism is in a vertical movement track, material taking or discharging is performed, no horizontal component movement exists, and the transported material can move stably and the surface is not scratched.
Specific embodiments of the application are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the application are not limited in scope thereby. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a track generation mechanism according to one embodiment of the present application;
FIG. 2 is a schematic illustration of the mechanism of FIG. 1 generating a predetermined trajectory;
FIG. 3 is a front view of a stepper feed apparatus in accordance with an embodiment of the present application;
FIG. 4 is a rear view of FIG. 3;
fig. 5 is a schematic diagram of a stepper feed system in accordance with an embodiment of the application.
Reference numerals illustrate:
1. a track generation mechanism; 11. an outer ring gear; 12. a first planetary gear; 13. an eccentric shaft; 14. a sun gear; 15. a planet carrier; 16. a fixing plate; 17. a second planetary gear; 18. a third planetary gear; 101. rising a motion track; 102. descending a motion track; 103. advancing a motion trail; 104. a backward movement track; 105. round corners; 21. a support plate; 22. a receiving part; 3. a drive gear; 4. a driven gear; 5. a power input shaft; 6. a steel pipe; 100. step-by-step material feeding unit.
Detailed Description
In order to make the technical solution of the present application better understood by those skilled in the art, the technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, shall fall within the scope of the application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In one embodiment, a step feeding device 100 includes: track generation mechanism 1 and blowing mechanism.
Reference is made in connection with fig. 1-4. The track generation mechanism 1 includes an external ring gear 11, a first planetary gear 12, and a sun gear 14; the sun gear 14 and the outer gear 11 are coaxially arranged, the sun gear 14 is meshed with the first planetary gear 12, and the sun gear 14 can be driven to rotate; the first planetary gears 12 are arranged in the outer gear ring 11 and meshed with the outer gear ring 11; the first planetary gear 12 is fixedly provided with an eccentric shaft 13.
The discharging mechanism is rotatably connected with the eccentric shaft 13; the first planetary gear 12 can drive the discharging mechanism to move along a preset track through the eccentric shaft 13; the predetermined trajectory includes at least a vertical motion trajectory.
In normal operation using the step feed device 100, the outer ring gear 11 is supported by a base and is stationary, the inner wall of the outer ring gear 11 is provided with a plurality of meshing teeth, and the first planetary gear 12 is meshed between the outer ring gear 11 and the sun gear 14. The first planet gears 12 driven by the sun gear 14 move in the outer gear 11, and the first planet gears 12 drive the discharging mechanism to move along a preset track through the eccentric shafts 13; the predetermined trajectory includes at least a vertical motion trajectory. When the discharging mechanism is in a vertical movement track, material taking or discharging is performed, no horizontal component movement exists, and the transported material can move stably and the surface is not scratched.
Specifically, the radius of the outer ring gear 11 is 2N times the radius of the first planetary gear 12, and N is a positive integer greater than or equal to 2.
In the present embodiment, n=2, that is, the radius of the outer ring gear 11 is 4 times the radius of the first planetary gear 12. Correspondingly, the predetermined track is a motion track which is integrally quadrilateral, and can comprise a rising motion track, a falling motion track, a forward motion track and a backward motion track, wherein the rising motion track and the falling motion track do not have horizontal component motion. When N is other value, the predetermined track may be a positive 2N polygon, and two sides without horizontal component motion may be found in the positive 2N polygon, which are respectively a rising motion track and a falling motion track.
In the present embodiment, when a line connecting the center of the first planetary gear 12 and the center of the sun gear 14 is parallel to the horizontal direction, the eccentric shaft 13 is on the line and between the center of the first planetary gear 12 and the center of the sun gear 14, refer to fig. 2. At this time, the position of the eccentric shaft 13 is a point on the vertical movement track, so that the discharging mechanism can take or discharge materials at the position without horizontal component movement, and the transported materials move stably and the surface is not scratched.
In the present embodiment, a rectangular coordinate system is established by taking the center of the sun gear 14 as the origin of coordinates and taking the direction with an included angle of 45 ° with the horizontal direction as the positive direction of the X-axis; the position point on the predetermined track satisfies the following relation:
wherein (x, y) is a position point on the predetermined trajectory, and x and y are in millimeters; d is the eccentric distance of the eccentric shaft 13, and the unit is millimeter; r is the radius of the outer ring gear 11 in mm; r is the radius of the first planetary gear 12 in millimeters; θ is the angle between the X axis and the straight line formed by connecting the position point (X, y) and the origin, and the unit is degree.
Since the relationship between R and R is known, substituting equation (1) according to the functional relationship at the specific position of the predetermined trajectory can deduce the relationship that R and d need to satisfy. When the value of R and/or R is determined, the value of d may also be determined. By adjusting the position of the eccentric shaft 13 relative to the centre of the first planetary gear 12, the device can be made to generate a vertical movement track. Also, equation (1) can be used to verify that the data given for a set of R, R, d is reasonable when designing.
A procedure for deriving the relationship between r and d is given below:
and (3) formulating a rectangular coordinate system as described above, wherein R can be 2N times of R, and N is a positive integer greater than or equal to 2. Only the case where r=4r is considered here. The predetermined locus generated at this time is a regular quadrangle, and the sides of the regular quadrangle are connected by the rounded corners 105. Bringing r=4r into equation (1), the equation for the predetermined trajectory is as follows:
θ1=45° is taken to equation (2), resulting in
Since the generated predetermined track at least comprising the vertical movement track is a regular quadrangle and is sitting right angleThe included angle between the positive direction of the X axis of the standard system and the horizontal direction is 45 degrees, the point (X1, y 1) passes through a straight line, the slope is-1, and the equation of the straight line passing through the point (X1, y 1) can be obtained as
Straight lineThe points on the upper line segment are on both the straight line (3) and the predetermined track (2). Assuming θ2=30°, the corresponding points (x 2, y 2) are both on the straight line (3) and on the predetermined trajectory (2). θ2=30° is first brought into equation (2) to obtain +.>Bringing it into equation (3) to obtain +.>I.e. d.apprxeq.0.349 r.
Note that when θ2 is different, the obtained relation between r and d is also different, because we do not specify how much θ is, the corresponding point must be on a straight line. Here, only the case where r=4r is considered, but the actual R may be 2N times R, N being a positive integer of 2 or more.
After the relation between d and R is obtained in the above manner, the values of R, R and d can be set, the device can generate a vertical movement track by adjusting the position of the eccentric shaft 13 relative to the center of the first planetary gear 12, and the discharging mechanism can take or discharge materials in the vertical movement track without horizontal component movement, so that the transported materials can move stably and the surface is not scratched.
In the present embodiment, the outer ring gear 11 has a modulus of 4, a number of teeth of 80, and a radius of 160mm. The first planetary gear 12 has a modulus of 4, a number of teeth of 20, and a radius of 40mm. The eccentric distance of the eccentric shaft 13 is 14mm. The track generating mechanism 1 is designed according to the above group of data, so that a regular quadrilateral track with the length and width of 212 mm can be generated, and each side of the regular quadrilateral track is connected by the round angle 105, that is to say, the stepping amplitude of the stepping type feeding device 100 is 212 mm. At this time, the stepping feeding device 100 can generate a vertical motion track, and the discharging mechanism performs material taking or discharging when the discharging mechanism performs the vertical motion track, and does not have horizontal component motion, so that the transported material can move stably and the surface is not scratched. Specifically, the closer to the middle of the side length of the regular quadrilateral track, the faster the track generating mechanism 1 operates; the closer to the rounded corners 105, the slower the trajectory generation mechanism 1 operates. According to the law, the material taking and placing positions can be designed at the position close to the right quadrilateral track round angle 105, so that the effect of 'light lifting and light placing' is achieved, and impact damage of the device to the outer surface of a product is avoided.
Please continue to refer to fig. 3-5. In the present embodiment, a concentric shaft is fixed to the first planetary gear 12, and the eccentric shaft 13 and the concentric shaft are fixedly connected by a fixing plate 16; the sun gear 14 has axially opposite first and second sides, and the fixed plate 16 is axially on the first side of the sun gear 14. The application adds a fixed plate 16 between the eccentric shaft 13 and the first planetary gear 12, which can make the structure more stable and reliable and make the space utilization more reasonable, the application does not limit the shape of the fixed plate 16, and can be round rectangle, ellipse, etc.
In this embodiment, the discharging mechanism is rotatably connected with the eccentric shaft 13 through a bearing, and the bearing plays a supporting role, and can reduce the friction coefficient between the discharging mechanism and the eccentric shaft 13 when the device operates, so that the operation is smoother and more stable.
Specifically, the discharging mechanism includes a supporting plate 21 extending in a horizontal direction, and a receiving portion 22 disposed on the supporting plate 21; the support plate 21 and the eccentric shaft 13 are rotatably connected; the discharge mechanism is located on a first side of the sun gear 14 in the axial direction. The material receiving portion 22 is used for placing materials, and specifically, may be a plurality of V-shaped grooves distributed at intervals, or may be a plurality of flat-bottom trays distributed at intervals, and the shape of the material receiving portion 22 is not limited in the present application. The eccentric shaft 13 and the supporting plate 21 are rotatably connected through a bearing, so that the discharging mechanism can move along a preset track comprising a vertical movement track along with the eccentric shaft 13.
In the present embodiment, the trajectory generation mechanism 1 further includes a second planetary gear 17, a third planetary gear 18, and a carrier 15; the first planetary gear 12, the second planetary gear 17 and the third planetary gear 18 are uniformly distributed around the sun gear 14, engaged between the sun gear 14 and the outer gear 11, and connected by the planet carrier 15 for synchronous movement. The second planetary gears 17, the third planetary gears 18 and the first planetary gears 12 have the same specification and are uniformly distributed in the outer gear ring 11, and the planetary carrier 15 connects the first planetary gears 12, the second planetary gears 17 and the third planetary gears 18, so that the track generating mechanism 1 is more stable and reliable.
In this embodiment, a driving gear 3 is further included; the track generating mechanism 1 has two; the eccentric shafts 13 of the two track generating mechanisms 1 are positioned on the same horizontal plane; the two trajectory generation mechanisms 1 are driven by the driving gear 3. The two eccentric shafts 13, which are located at the same level, can provide support for the support plate 21, keeping the support plate 21 horizontal. The common drive gear 3 can simplify the device while achieving power input, and can drive both the track generating mechanisms 1 only through the same power input shaft 5.
Specifically, each track generating mechanism 1 is further provided with a driven gear 4 coaxially arranged with the sun gear 14; the drive gear 3 drives the sun gear 14 through the driven gear 4; the drive gear 3 and the driven gear 4 are located on a second side in the axial direction of the sun gear 14. The driven gear 4 and the discharging mechanism are arranged on two different sides of the sun gear 14, so that the space is reasonably utilized, the transmission and the material conveying can be separated, and interference is avoided. Of course, the driven gear 4 and the discharging mechanism may be placed on the same side of the sun gear 14 without causing interference to save space. The driven gear 4 and the sun gear 14 can be coaxially and fixedly connected, and the size specification of the driven gear 4 is not limited in the application.
Specifically, the device also comprises a driving motor for driving the driving gear 3; the driving motor is a gear motor or a hydraulic motor, power is input to the axle center of the driving gear 3 through the power input shaft 5, the driving gear 3 is driven to rotate, the driven gear 4 drives the sun gear 14 to rotate, the sun gear 14 drives the first planet gear 12 to rotate, the eccentric shaft 13 on the first planet gear 12 drives the supporting plate 21 rotatably connected with the eccentric shaft to move, and the material receiving part 22 fixedly connected with the supporting plate 21 is used for conveying materials.
In this embodiment, the predetermined trajectory includes a horizontal movement trajectory. Specifically, the predetermined track includes an ascending motion track 101 (corresponding to a material taking process), a descending motion track 102 (corresponding to a material discharging process), a forward motion track 103 (corresponding to a material feeding process), and a backward motion track 104 (corresponding to a resetting process), and the tracks are transited by a rounded corner 105, as shown in fig. 2. In the embodiment of the present application, the predetermined track is a regular quadrilateral track, and each side of the regular quadrilateral is connected by a rounded corner 105. When the discharging mechanism is operated to be close to the transition fillet 105, the step feeding device 100 takes or discharges materials, so as to receive the effect of 'light lifting and light discharging', and avoid impact damage to the outer surface of the product caused by the device.
For example, above the midpoint of the vertical edge of the ascending motion track 101, the material is taken from the position below the round angle 105, and at this time, the supporting plate 21 keeps moving vertically upwards, so that the position of the material can be accurately aligned, and the material can be stably taken out; the material arrives at the supporting plate 21 of the step-type feeding device 100 from the original position, and the material can be quickly stabilized on the supporting plate 21 and cannot be scratched because the device automatically decelerates when moving to the track round angle 105; the device automatically decelerates when moving to the other round angle 105 along the advancing movement track 103; above the midpoint of the vertical edge of the descending movement track 102, the position below the round corner 105 is discharged, and at the moment, the supporting plate 21 keeps moving vertically downwards, so that the position of the material can be accurately aligned, the material is stably put down, and the speed of the material when reaching the target position from the supporting plate 21 of the stepping feeding device 100 can not be very fast due to the fact that the round corner 105 just passing through the track is decelerated, and the material can be very fast and stable and cannot be scratched. Finally, the device returns to the starting position through the backward movement track 104, and starts the next operation. Of course, for better stable conveying effect, the driving motor can be set as a speed reducer, and the speed reducer decelerates when the device performs material taking and discharging.
In summary, in the step-type feeding device 100 of the present embodiment, the first planetary gear 12 can drive the discharging mechanism to move along a predetermined track through the eccentric shaft 13, and the predetermined track at least includes a vertical movement track. When the discharging mechanism is in a vertical movement track, material taking or discharging is performed, no horizontal component movement exists, and the transported material can move stably and the surface is not scratched. More specifically, the device is capable of generating an overall quadrilateral trajectory with transition rounded corners 105. And when the material is operated in the vertical direction, taking or discharging is performed. Moving to the transition radius 105, the device may slow down, preventing the transported material from rocking in the tray or V-groove due to inertia.
Please refer to fig. 5. The embodiment of the application also provides a stepping feeding system, which comprises: the step feed device 100 as described in any of the above embodiments. In this system, the step feed device 100 may be used in tandem in a column through the same power input shaft 5 to deliver a longer length, heavier weight material (e.g., steel tube 6 in fig. 5). The power input shaft 5 and the drive gear 3 are coaxially disposed. When the stepping feeding devices 100 need to be used in an array mode, the stepping machines can be conveniently connected in series by using one power input shaft 5 to drive the stepping machines together, so that the number of prime movers is saved, the equipment maintenance workload is reduced, and good synchronism among the stepping feeding devices 100 is ensured.
It should be noted that, when the stepping feeding device 100 is used in series in a column, the driving mode may be changed, and the power input shaft 5 of the driving gear 3 is designed to sink, so as to avoid interference with the power input shaft 5 of the driving gear 3 when the supporting plate 21 moves below.
It should be noted that the terms "first," "second," and the like are used merely for descriptive purposes and to distinguish between similar objects, and that no ordering exists therebetween, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Any numerical value recited herein includes all values of the lower and upper values that increment by one unit from the lower value to the upper value, as long as there is a spacing of at least two units between any lower value and any higher value. For example, if it is stated that the number of components or the value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, then the purpose is to explicitly list such values as 15 to 85, 22 to 68, 43 to 51, 30 to 32, etc. in this specification as well. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be explicitly recited in this description, and all possible combinations of values recited between the lowest value and the highest value are believed to be explicitly stated in the description in a similar manner.
Unless otherwise indicated, all ranges include endpoints and all numbers between endpoints. "about" or "approximately" as used with a range is applicable to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30," including at least the indicated endpoints.
All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional.
Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, feature or step is not intended to foreclose other elements, components, features or steps.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the inventors regard such subject matter as not be considered to be part of the disclosed subject matter.
Claims (11)
1. A step feed device, comprising:
a track generation mechanism; the track generating mechanism comprises an outer gear ring, a first planetary gear and a sun gear; the sun gear and the outer gear ring are coaxially arranged, the sun gear is meshed with the first planet gear, and the sun gear can be driven to rotate; the first planetary gears are arranged in the outer gear ring and meshed with the outer gear ring; the first planet gear is fixedly provided with an eccentric shaft;
a discharging mechanism capable of placing materials; the discharging mechanism is rotationally connected with the eccentric shaft through a bearing; the first planetary gear can drive the discharging mechanism to move along a preset track through the eccentric shaft; the predetermined track at least comprises a vertical motion track; the discharging mechanism comprises a supporting plate extending along the horizontal direction and a receiving part arranged on the supporting plate; the supporting plate is rotatably connected with the eccentric shaft; the discharging mechanism is positioned at the first side of the sun gear in the axial direction;
wherein when a line connecting the centers of the first and sun gears is parallel to the horizontal direction, the eccentric shaft is on the line and between the centers of the first and sun gears;
a rectangular coordinate system is established by taking the center of a circle of the sun gear as a coordinate origin and taking the direction with an included angle of 45 degrees with the horizontal direction as the positive direction of the X axis; the position point on the predetermined track satisfies the following relation:
；
wherein (x, y) is a position point on the predetermined trajectory, and x and y are in millimeters;
d is the eccentric distance of the eccentric shaft, and the unit is millimeter;
r is the radius of the outer gear ring, and the unit is millimeter;
r is the radius of the first planetary gear, and the unit is millimeter;
θ is the angle between the X axis and the straight line formed by connecting the position point (X, y) and the origin, and the unit is degree.
2. The stepwise feeding device of claim 1, wherein: the radius of the outer gear ring is 2N times of the radius of the first planetary gear, and N is a positive integer greater than or equal to 2.
3. The stepwise feeding device of claim 2, wherein: the radius of the outer ring gear is 4 times the radius of the first planetary gear.
4. The stepwise feeding device of claim 1, wherein: the first planetary gear is fixed with a concentric shaft, and the eccentric shaft is fixedly connected with the concentric shaft through a fixing plate; the sun gear is provided with a first side and a second side which are opposite to each other along the axial direction, and the fixed plate is arranged on the first side of the sun gear along the axial direction.
5. The stepwise feeding device of claim 1, wherein: the track generating mechanism further comprises a second planetary gear, a third planetary gear and a planetary carrier; the first planetary gears, the second planetary gears and the third planetary gears are uniformly distributed around the sun gear, and the first planetary gears, the second planetary gears and the third planetary gears are meshed between the sun gear and the outer gear and connected through a planet carrier so as to synchronously move.
6. The stepwise feeding device of claim 1, wherein: the device also comprises a driving gear; the track generating mechanisms are two; the eccentric shafts of the two track generating mechanisms are positioned on the same horizontal plane; the two track generating mechanisms are driven by the drive gear.
7. The stepwise feeding device of claim 6, wherein: each track generating mechanism is also provided with a driven gear which is coaxially arranged with the sun gear; the drive gear drives the sun gear through the driven gear; the drive gear and the driven gear are located on a second side of the sun gear in an axial direction.
8. The stepwise feeding device of claim 6, wherein: the driving motor is used for driving the driving gear; the driving motor is a gear motor or a hydraulic motor.
9. The stepwise feeding device of claim 1, wherein: the predetermined trajectory includes a horizontal movement trajectory.
10. The stepwise feeding device of claim 1, wherein: the preset track comprises a rising motion track, a descending motion track, a forward motion track and a backward motion track, and the whole motion track is quadrilateral.
11. A stepwise feeding system, comprising: a stepwise feeding device as claimed in any one of claims 1-10.
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| CN201811293031.5A CN109335519B (en) | 2018-11-01 | 2018-11-01 | Stepping feeding device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811293031.5A CN109335519B (en) | 2018-11-01 | 2018-11-01 | Stepping feeding device and system |
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| CN109335519B true CN109335519B (en) | 2023-08-29 |
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| CN110140737B (en) * | 2019-06-05 | 2021-04-23 | 安徽省丰龙机械有限公司 | Non-fried instant noodle extrusion stretching system |
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| DE2358771A1 (en) * | 1973-11-26 | 1975-06-05 | Bauer Eberhard | Can or jar distributing machine between two tracks - has slewing guide actuated by star wheel rotated by passing items |
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| CN209038420U (en) * | 2018-11-01 | 2019-06-28 | 北京京诚之星科技开发有限公司 | Stepping type feeding device and system |
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| FR2125307A1 (en) * | 1971-02-19 | 1972-09-29 | Enzinger Union Werke Ag | |
| DE2358771A1 (en) * | 1973-11-26 | 1975-06-05 | Bauer Eberhard | Can or jar distributing machine between two tracks - has slewing guide actuated by star wheel rotated by passing items |
| US3920972A (en) * | 1974-07-16 | 1975-11-18 | Cincinnati Milacron Inc | Method and apparatus for programming a computer operated robot arm |
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