CN110094963B - Linear vibration pushing mechanism - Google Patents
Linear vibration pushing mechanism Download PDFInfo
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- CN110094963B CN110094963B CN201910449273.7A CN201910449273A CN110094963B CN 110094963 B CN110094963 B CN 110094963B CN 201910449273 A CN201910449273 A CN 201910449273A CN 110094963 B CN110094963 B CN 110094963B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 100
- 238000001035 drying Methods 0.000 claims abstract description 43
- 230000000670 limiting effect Effects 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 abstract description 13
- 239000010432 diamond Substances 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 43
- 239000004744 fabric Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 241000219051 Fagopyrum Species 0.000 description 6
- 235000009419 Fagopyrum esculentum Nutrition 0.000 description 6
- 240000008042 Zea mays Species 0.000 description 6
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 6
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 6
- 235000005822 corn Nutrition 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides a linear vibration pushing mechanism, which relates to the technical field of grain processing and agricultural machinery, and comprises a frame, a screen mechanism and a linkage mechanism, wherein the screen mechanism consists of a plurality of screen groups which are arranged up and down correspondingly, and each screen group consists of an upper screen and a lower screen which are identical in structure and are arranged up and down correspondingly; the linkage mechanism comprises a speed change motor, a diamond linkage rod, a cam and a linkage rod, wherein the disc-shaped surface of the cam is provided with an eccentric slideway, a roller follower capable of sliding back and forth in the eccentric slideway is arranged in the eccentric slideway, a rotating shaft of the speed change motor is connected with a central shaft of the cam and drives the cam to rotate so as to transmit power to the diamond linkage rod through the eccentric slideway, and the diamond linkage rod drives the screen group to do reciprocating motion according to the track of the eccentric slideway. The invention realizes that the rotating speed of the variable speed motor and the pushing quantity are in linear proportional relation through the cam and the diamond-shaped linkage rod, and realizes that the drying condition is achieved by adjusting the rotating speed and the temperature of the motor.
Description
Technical Field
The invention relates to the technical field of grain processing and agricultural machinery, in particular to a linear vibration pushing mechanism.
Background
The traditional nationwide drying towers consume tens of millions of tons of coal each year, the drying towers are coal-fired furnaces below 20 steaming tons, the current grain drying industry basically adopts high-temperature drying, but the current high-temperature drying equipment has the defects of high energy consumption, low drying efficiency and decomposition and loss of grain nutrient components at high temperature for a long time, and the agricultural industry is urgently required to be upgraded.
One reason for low drying efficiency is that the pushing amount is uneven when materials are supplied, linear pushing cannot be achieved, different drying time and temperature are needed for drying different material types and moisture contained in the materials in the drying industry, and the uneven thickness of the materials can be caused by the fact that the materials cannot be pushed linearly, so that the originally set drying temperature and time cannot be used for effectively drying, and some accumulated materials cannot be dried completely; vibration is a common method for continuously and automatically pushing materials, but the conventional vibration pushing device cannot achieve linear quantitative supply, so that the problem of low drying efficiency of the conventional drying device is caused, and a pushing device capable of truly linearly pushing materials is needed to solve the problem.
Disclosure of Invention
The invention aims to provide a linear vibration pushing mechanism so as to solve the technical problem that the conventional drying device is low in drying efficiency because the linear quantitative supply of a vibration pushing device cannot be achieved in the prior art; the preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a linear vibration pushing mechanism, which comprises a frame, a screen mechanism arranged on the frame and a linkage mechanism for driving the screen mechanism to do linear vibration,
the screen mechanism consists of a plurality of screen groups which are arranged up and down correspondingly, each screen group consists of an upper screen and a lower screen which are identical in structure and are arranged up and down correspondingly, the upper screen and the lower screen are obliquely arranged and are opposite in inclination direction, and the discharge end of the upper screen is abutted against the feed end of the lower screen;
the upper screen and the lower screen are overlapped and limited on the frame through the bearing mechanism and do reciprocating motion on the bearing mechanism through the linkage mechanism;
the linkage mechanism comprises a speed changing motor, a diamond linkage rod, a cam and a linkage rod, wherein a mounting plate is arranged on the side portion of the frame, the speed changing motor, the diamond linkage rod and a central shaft of the cam are arranged on the mounting plate, an eccentric slideway is arranged on the disc-shaped surface of the cam, a roller driven piece capable of reciprocating in the eccentric slideway is arranged in the eccentric slideway, connecting points a, b and d are sequentially arranged on four opposite corners of the diamond linkage rod, the connecting points a are connected with the roller driven piece, the connecting points b and c are respectively connected with an upper screen mesh and a lower screen mesh, two ends of the linkage rod are respectively connected with a connecting point d of the diamond linkage rod of the upper screen mesh and a connecting point d of the diamond linkage rod of the lower screen mesh so that the upper screen mesh and the lower screen mesh are synchronously moved, a rotating shaft of the speed changing motor is connected with the central shaft of the cam and drives the cam to rotate, power is transmitted to the diamond linkage rod through the eccentric slideway, and the diamond linkage rod drives the screen mesh to reciprocate according to the track of the eccentric slideway.
The pushing mechanism is matched with a drying device to be used together in the use process, and when the pushing mechanism is used, materials travel on the upper screen of the screen group according to the design speed and fall into the feeding end of the lower screen from the discharging end and then fall into the feeding end of the upper screen of the lower screen group, so that the materials can move layer by layer on the multi-layer screen group and finally fall into the lower screen of the lowest screen group, and the discharging is realized; in the process of moving the material on the screen group, drying air of the drying device passes through the material to dry the material;
the screen group can vibrate reciprocally according to the design speed and the advancing direction of materials, and the screen group is realized through a linkage mechanism, and the function realization of the linkage mechanism specifically comprises two parts of vibration of a single screen group and linkage of a plurality of screen groups, and the principle of vibration of the single screen group is described first: the power of the whole linkage mechanism is provided by a variable speed motor, a rotating shaft of the variable speed motor drives a cam to rotate, the central shaft of a diamond-shaped linkage rod is fixed on a mounting plate, so that the diamond-shaped linkage rod can rotate by taking the central shaft as the center, in the process of rotating the cam, a connecting point a of the diamond-shaped linkage rod can reciprocate along with a roller driven piece according to a track path of an eccentric slideway, meanwhile, a connecting point b and a connecting point c of the diamond-shaped linkage rod can do reciprocating motion of approximate arcs, the arc reciprocating motion can be approximately similar to reciprocating vibration through the track path design of the eccentric slideway, further reciprocating vibration which is approximately biased in the advancing direction of materials can be further achieved, the connecting point b and the connecting point c transmit the vibration force of the reciprocating vibration to an upper screen and a lower screen respectively, so that the reciprocating vibration of the upper screen and the lower screen can be realized, and the material of the upper screen and the lower screen are inclined at the feeding end of the lower screen, the material is worthy of being opposite in direction, and when the connecting point b drives the upper screen to move forwards, the connecting point c can drive the lower screen to move backwards, and simultaneously the upper screen and the lower screen are also inclined in the opposite directions, and the vibration speed of the upper screen and the lower screen can be increased in the opposite directions, and the vibration speed of the vibration motor can be increased, and the vibration speed can be synchronous with the vibration speed of the upper screen and the material can be increased, and the vibration speed, and the material can be increased, and the vibration speed and the speed; the plurality of screen groups are linked mainly through the arranged linkage rods, each screen group is provided with a diamond linkage rod, when the motor drives the corresponding screen group to do reciprocating vibration through the diamond linkage rod, other screen groups adjacent to the screen group drive the corresponding diamond linkage rod to do the same reciprocating motion through the linkage rod, and then each screen group does the same reciprocating vibration, so that the function of driving a plurality of screen groups by one motor is realized; of course, a plurality of variable speed motors can be arranged, and the rotating speeds of the variable speed motors are required to be adjusted to be in a consistent state when the variable speed motors are used, so that the consistency of pushing quantity is ensured.
Optionally, the base circle outline of the eccentric slideway of the cam is provided with an outer convex slideway and an inner concave slideway, so that the forward speed of the upper screen and the lower screen in the declination direction is higher than the backward speed. The motion rule of the diamond-shaped linkage rod is mainly based on the track path of the eccentric slideway of the cam, in order to enable the forward moving speed of the upper layer screen mesh and the lower layer screen mesh in the downward tilting direction of the upper layer screen mesh and the lower layer screen mesh to be larger than the backward moving speed, namely the materials are continuously pushed forward on the screen mesh group, the track path of the cam is required to be designed, the designed outer convex slideway and the inner concave slideway are two critical points, when the cam rotates, the sliding rule of the roller follower is that the base circle contour, the outer convex slideway and the inner concave slideway are the base circle contour, the sliding rule of the roller follower is that the base circle contour, the outer convex slideway and the inner concave slideway are smoothly butted, the diamond-shaped linkage rod can be in a state similar to forward shaking, and the diamond-shaped linkage rod can restore to a nearly steady motion state after the roller follower continuously slides into the base circle contour, so that the diamond-shaped linkage rod can drive the screen mesh group to realize a forward shaking action when the roller follower continuously slides into the base circle contour, and the diamond-shaped linkage rod can be reset slowly after the action, so that the material can be almost and continuously reset on the screen mesh group.
Optionally, the linkage mechanism comprises a variable speed motor, a plurality of diamond-shaped linkage rods, a cam and linkage rods, and the screen groups of the screen mechanism realize synchronous movement through linkage cooperation of the linkage rods and the diamond-shaped linkage rods. The variable speed motor has the advantage of being convenient for adjusting the rotating speed, and is suitable for a small-sized pushing mechanism due to the power limitation of the motor.
Optionally, the included angles of the upper screen and the lower screen with the horizontal plane are alpha, and alpha is more than or equal to 6 degrees and less than or equal to 20 degrees. For materials with different weights or densities, such as corn and buckwheat, the density of the corn is greater than that of the buckwheat, the included angle alpha of the screen group for drying the corn needs to be smaller, generally 8-12 degrees, and the included angle alpha of the screen group for drying the buckwheat is about 15 degrees in order to ensure that the materials run stably on the screen group.
Optionally, the frame includes the vertical support pole that sets up around screen cloth mechanism, bearing mechanism is integrative platelike structure or is the support body structure of constituteing by a plurality of connecting rods, bearing mechanism's side and vertical support pole fixed connection and then carry out spacing fixed to the position of vertical support pole, bearing mechanism slope setting and the inclination the same with corresponding upper screen cloth or lower floor's screen cloth, bearing mechanism's front and back edge all is covered in screen cloth group's discharge end or feed end below. The bearing mechanism is used for bearing the screen mechanism and providing a certain supporting and moving space for the vibration of the screen group; on the other hand, the vertical support rod of the frame can be stabilized, so that the whole frame is more stable.
Optionally, the left and right edges of the bearing mechanism are all hinged with limiting sliding sheets, the other end of each limiting sliding sheet is hinged with the side wall of the upper screen mesh or the lower screen mesh above the limiting sliding sheet, and the limiting sliding sheets rotate or slide along with the reciprocating motion of the upper screen mesh or the lower screen mesh between the bearing mechanism and the screen mesh group. Because the screen net group needs to have certain movement space in the reciprocating motion process, the screen net group is not in a stable state, and can be kept stable under the limiting action of a vertical support rod and a bearing mechanism of a frame, but can be separated from the frame, and the arranged limiting sliding sheets are connected in a rotatable hinging mode, so that the reciprocating vibration of the screen net group is not affected, and the screen net group can be ensured to be integrally connected with the frame when encountering unreliability.
Optionally, the frame is equipped with the baffle in the position that corresponds screen cloth group feed end and discharge end, baffle and mounting panel cover the lateral part parcel of frame. The effect of baffle is in order to avoid the material to slide the outside of whole mechanism in the clearance of upper screen cloth and lower floor's screen cloth, causes the material loss, and is worth noting that this pushing equipment is cooperation drying device and uses, and the baffle of setting can also make drying device's steam keep inside the frame, avoids leaking, improves drying efficiency.
Optionally, a reset spring connected with the connection point a of the diamond-shaped linkage rod is arranged on the mounting plate. The reset spring is convenient for resetting the diamond-shaped linkage rod, and particularly, the diamond-shaped linkage rod which is not provided with a speed change motor has the power which is completely dependent on the action of the nearby linkage rod, the reset delay condition possibly occurs, the moment acts on the linkage rod during resetting, the damage to the linkage rod can be increased, and the reset spring can share a part of reset force.
Optionally, a total feed inlet is arranged at the top of the frame corresponding to the feed end of the upper screen of the uppermost layer. The total feed inlet is used for conveying materials to the screen group at the top layer.
Optionally, the top of the frame is also provided with a drying exhaust port, and the bottom of the frame is provided with a drying air inlet. Preferably, the oven dry vent and the total feed port together sealingly cover the frame headspace.
The linear vibration pushing mechanism provided by the invention has the beneficial effects that:
the invention provides a linear vibration pushing system used in the drying industry.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a connection structure of a diamond-shaped linkage rod and a cam according to the present invention;
FIG. 2 is a schematic view of the structure of the cam of the present invention;
FIG. 3 is a schematic view of a screen mechanism formed by a screen fabric of the present invention;
FIG. 4 is another schematic view of a screening mechanism formed by a screening fabric of the present invention;
FIG. 5 is a schematic view of a pushing mechanism of the present invention comprising a screen cloth;
fig. 6 is a schematic structural diagram of a pushing mechanism in embodiment 9 of the present invention.
In the figure, the machine frame comprises a 1-frame body, a 2-screen group, a 3-bearing mechanism, a 4-variable speed motor, a 5-diamond-shaped linkage rod, a 6-cam, a 7-linkage rod, an 8-mounting plate, a 9-limiting sliding sheet, a 10-baffle plate, an 11-reset spring, a 12-total feed inlet, a 13-drying exhaust port, a 14-drying air inlet, a 201-upper screen, a 202-lower screen, a 501-connection point a, a 502-connection point b, a 503-connection point c, a 504-connection point d, a 61-base circle profile, a 62-convex sliding way, a 63-concave sliding way, a 601-eccentric sliding way and a 602-roller follower.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
As an alternative to the implementation of the method,
example 1:
as shown in fig. 1-5, a linear vibration pushing mechanism comprises a frame 1, a screen mechanism arranged on the frame 1 and a linkage mechanism for driving the screen mechanism to perform linear vibration, wherein the screen mechanism is composed of a plurality of screen groups 2 which are arranged correspondingly up and down, each screen group 2 is composed of an upper screen 201 and a lower screen 202 which are identical in structure and are arranged correspondingly up and down, the upper screen 201 and the lower screen 202 are obliquely arranged and are opposite in inclination direction, and a discharge end of the upper screen 201 is abutted against a feed end of the lower screen 202; the machine frame 1 is provided with a bearing mechanism 3, and the upper screen 201 and the lower screen 202 are overlapped and limited on the machine frame 1 through the bearing mechanism 3 and do reciprocating motion on the bearing mechanism 3 through a linkage mechanism; the linkage mechanism comprises a variable speed motor 4, a diamond-shaped linkage rod 5, a cam 6 and a linkage rod 7, wherein a mounting plate 8 is arranged on the side part of the frame 1, central shafts of the variable speed motor 4, the diamond-shaped linkage rod 5 and the cam 6 are arranged on the mounting plate 8, eccentric slide ways 601 are arranged on the disc-shaped surface of the cam 6, roller followers 602 capable of sliding back and forth in the eccentric slide ways 601 are arranged in the eccentric slide ways 601, connecting points a501, a connecting point b502, a connecting point c503 and a connecting point d504 are sequentially arranged on four opposite corners of the diamond-shaped linkage rod 5, the connecting point a501 is connected with the roller followers 602, the connecting point b502 and the connecting point c503 are respectively connected with an upper screen 201 and a lower screen 202, two ends of the linkage rod 7 are respectively connected with connecting points d504 of the diamond-shaped linkage rod 5 of the upper screen group 2 and the lower screen group 2 so that the upper screen 201 group 2 and the lower screen 202 do synchronous motion, the rotating shaft of the variable speed motor 4 is connected with the central shaft of the cam 6 and drives the cam 6 to rotate so as to transfer power to the diamond-shaped linkage rod 5 through the eccentric slide ways 601, and the diamond-shaped linkage rod 5 drives the screen group 2 to do the reciprocating motion according to the eccentric slide tracks of the diamond-shaped linkage rod 5.
The pushing mechanism is matched with a drying device to be used together in the use process, when the pushing mechanism is used, materials travel on the upper screen 201 of the screen group 2 according to a designed speed and fall into the feeding end of the lower screen 202 from the discharging end and then fall into the feeding end of the upper screen 201 of the next screen group 2, so that the materials move layer by layer on the multi-layer screen group 2 and finally fall into the lower screen 202 of the lowest screen group 2, and the discharging is realized; in the process of moving the material on the screen group 2, the drying air of the drying device passes through the material to dry the material;
the screen group 2 can vibrate reciprocally according to the design speed and the advancing direction of the materials, and the vibration of the single screen group 2 and the linkage of the multiple screen groups 2 are specifically included by the functional implementation of the linkage mechanism, and the principle of the vibration of the single screen group 2 is described first: the power of the whole linkage mechanism is provided by a variable speed motor 4, the rotating shaft of the variable speed motor 4 drives a cam 6 to rotate, the central shaft of a diamond-shaped linkage rod 5 is fixed on a mounting plate 8, so the diamond-shaped linkage rod 5 can rotate by taking the central shaft as the center, in the process of rotating the cam 6, a connection point a501 of the diamond-shaped linkage rod 5 can reciprocate along the track path of an eccentric slideway 601 along with a roller driven piece 602, meanwhile, a connection point b502 and a connection point c503 of the diamond-shaped linkage rod 5 can do similar arc reciprocating motion, the upper arc reciprocating motion passes through the track path design of the eccentric slideway 601 and can be similar to reciprocating vibration, further the reciprocating vibration force of the reciprocating vibration can be approximately deflected in the advancing direction of materials, a connection point b502 and a connection point c503 can be respectively transmitted to an upper layer screen 201 and a lower layer screen 202, the reciprocating vibration of the upper screen 201 and the lower screen 202 can be realized, the discharge end of the upper layer 201 is inclined along with the track path of the eccentric slideway 601, the upper layer 201 and the lower screen 202 moves in the opposite direction, the upper layer 201 and the lower screen 202 can be driven by the upper layer 201 and the lower screen 202, and the vibration speed of the upper screen 202 can be increased along with the opposite direction, and the vibration speed of the upper screen 201 can be increased, and the vibration speed of the material can be increased along with the vibration speed of the upper screen 202 and the lower screen 202, and the vibration can be simultaneously increased along with the vibration speed of the vibration; the linkage of the screen groups 2 is mainly realized through the arranged linkage rods 7, each screen group 2 is provided with a diamond-shaped linkage rod 5, when the motor drives the corresponding screen group 2 to do reciprocating vibration through the diamond-shaped linkage rod 5, other screen groups 2 adjacent to the screen group 2 drive the corresponding diamond-shaped linkage rod 5 to do the same reciprocating motion through the linkage rods 7, and then each screen group 2 does the same reciprocating vibration, so that the function of driving a plurality of screen groups 2 by the motor is realized; of course, a plurality of variable speed motors 4 can be provided, and when in use, the rotation speeds of the variable speed motors 4 need to be adjusted to be in a consistent state so as to ensure the consistency of the pushing amount.
Example 2:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1 to 5, the base circle profile 61 of the eccentric runner 601 of the cam 6 is provided with a convex runner 62 and a concave runner 63, so that the advancing speed of the upper screen 201 and the lower screen 202 in the downward tilting direction thereof is greater than the backward moving speed. The motion rule of the diamond-shaped linkage rod 5 is mainly based on the track path of the eccentric slide way 601 of the cam 6, in order to make the forward speed of the upper screen 201 and the lower screen 202 in the downward tilting direction greater than the backward speed, that is, the track path of the cam 6 needs to be designed, the designed outer slide way 62 and inner slide way 63 are two critical points, when the cam 6 rotates, the sliding rule of the roller follower 602 is that the base circle profile 61-outer slide way 62-inner slide way 63-base circle profile 61, note that all parts of the track path are in smooth butt joint, when the roller follower 602 strokes into the inner slide way 63 from the outer slide way 62, the diamond-shaped linkage rod 5 is in a state similar to forward shaking, and as the roller follower 602 continuously slides into the base circle profile 61, the diamond-shaped linkage rod 5 is restored to an original near motion state, so that a motion cycle is completed, and when each motion cycle is completed, the diamond-shaped linkage rod 5 drives the screen 2 to move forward, and the material tends to reset on the screen 2, so that the material tends to move forward slowly, and the material tends to shake forward, and the material tends not to shake forward.
Example 3:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-5, the linkage mechanism comprises a variable speed motor 4, a plurality of diamond-shaped linkage rods 5, a cam 6 and a linkage rod 7, and the plurality of screen groups 2 of the screen mechanism realize synchronous movement through linkage cooperation of the linkage rod 7 and the diamond-shaped linkage rods 5. The provision of a variable speed motor 4 has the advantage of facilitating adjustment of the rotational speed, and is suitable for use in small-sized pushing mechanisms due to the power limitations of the motor.
Example 4:
on the basis of the above embodiments, as a further preferable scheme: as shown in FIGS. 1-5, the upper screen 201 and the lower screen 202 are both at an angle alpha to the horizontal of 6 DEG alpha 20 deg. For materials with different weights or densities, such as corn and buckwheat, the density of the corn is greater than that of the buckwheat, the included angle alpha of the screen group 2 for drying the corn needs to be smaller, generally 8-12 degrees, and the included angle alpha of the screen group 2 for drying the buckwheat is about 15 degrees in order to ensure that the materials run stably on the screen group 2.
Example 5:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-5, the frame 1 includes a vertical support rod disposed around the screen mechanism, the bearing mechanism 3 is in an integral plate structure or is in a frame structure composed of a plurality of connecting rods, the side edge of the bearing mechanism 3 is fixedly connected with the vertical support rod so as to limit and fix the position of the vertical support rod, the bearing mechanism 3 is obliquely disposed and has the same inclination angle with the corresponding upper screen 201 or lower screen 202, and the front and rear edges of the bearing mechanism 3 are covered below the discharge end or the feed end of the screen group 2. The bearing mechanism 3 is used for bearing the screen mechanism on one hand and providing a certain supporting and moving space for the vibration of the screen group 2; on the other hand, the vertical support rod of the frame 1 can be stabilized, so that the whole frame 1 is more stable.
Example 6:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-5, the left and right edges of the bearing mechanism 3 are hinged with limiting sliding sheets 9, the other ends of the limiting sliding sheets 9 are hinged with the side walls of the upper screen 201 or the lower screen 202 above the limiting sliding sheets 9, and the limiting sliding sheets 9 rotate or slide along with the reciprocating motion of the upper screen 201 or the lower screen 202 between the bearing mechanism 3 and the screen group 2. Because the screen group 2 needs to have certain movement space in the process of reciprocating motion, the screen group 2 is not in a stable state in fact, although the screen group 2 can be kept stable under the limiting action of the vertical support rod of the frame 1 and the bearing mechanism 3, the situation of separation from the frame 1 can still occur, and the limiting sliding sheet 9 is arranged, and the screen group 2 is connected in a rotatable hinging manner, so that the reciprocating vibration of the screen group 2 is not affected, and the screen group 2 can be ensured to be kept integrally connected with the frame 1 when encountering unreliability.
Example 7:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-5, the frame 1 is provided with baffles 10 at positions corresponding to the feeding end and the discharging end of the screen group 2, and the baffles 10 and the mounting plate 8 wrap and cover the side parts of the frame 1. The baffle 10 is used for avoiding the material from sliding to the outside of the whole mechanism from the gap between the upper screen 201 and the lower screen 202, so that the material loss is caused, and it is worth noting that the pushing mechanism is matched with the drying device, and the arranged baffle 10 can also keep the hot air of the drying device inside the frame 1, avoid leakage and improve the drying efficiency.
Example 8:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1 to 5, the mounting plate 8 is provided with a return spring 11 connected to the connection point a501 of the diamond-shaped link 5. The reset spring 11 is convenient for resetting the diamond-shaped linkage rod 5, and especially the diamond-shaped linkage rod 5 without the variable speed motor 4 is completely dependent on the action of the nearby linkage rod 7, the reset delay condition can possibly occur, the moment acts on the linkage rod 7 during resetting, the damage to the linkage rod 7 can be increased, and the reset spring 11 can share a part of reset force.
Example 9:
on the basis of the above embodiments, as a further preferable scheme: as shown in fig. 1-6, a total feed port 12 is arranged at the top of the frame 1 corresponding to the feed end of the upper screen 201 at the uppermost layer, and the total feed port 12 is used for conveying materials to the screen group 2 at the uppermost layer; the top of the frame is also provided with a drying exhaust port 13, the bottom of the frame 1 is provided with a drying air inlet 14, and preferably, the drying exhaust port 13 and the total feeding port 12 jointly cover the top space of the frame 1 in a sealing way.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A linear vibration pushing mechanism comprises a frame (1), a screen mechanism arranged on the frame (1) and a linkage mechanism for driving the screen mechanism to do linear vibration, and is characterized in that,
the screen mechanism consists of a plurality of screen groups (2) which are arranged up and down correspondingly, each screen group (2) consists of an upper screen (201) and a lower screen (202) which are identical in structure and are arranged up and down correspondingly, the upper screen (201) and the lower screen (202) are obliquely arranged and are opposite in oblique direction, and the discharge end of the upper screen (201) is abutted against the feed end of the lower screen (202);
the machine frame (1) is provided with a bearing mechanism (3), and the upper layer screen (201) and the lower layer screen (202) are overlapped and limited on the machine frame (1) through the bearing mechanism (3) and do reciprocating motion on the bearing mechanism (3) through a linkage mechanism;
the linkage mechanism comprises a variable speed motor (4), a diamond-shaped linkage rod (5), a cam (6) and a linkage rod (7), wherein a mounting plate (8) is arranged on the side part of the frame (1), the variable speed motor (4), the diamond-shaped linkage rod (5) and the central shaft of the cam (6) are arranged on the mounting plate (8), an eccentric slide way (601) is arranged on the disc-shaped surface of the cam (6), a roller driven piece (602) capable of sliding in the eccentric slide way (601) in a reciprocating manner is arranged in the eccentric slide way (601), a connecting point a (501), a connecting point b (502), a connecting point c (503) and a connecting point d (504) are sequentially arranged on four opposite corners of the diamond-shaped linkage rod (5), the connecting point a (501) is connected with the roller driven piece (602), the connecting point b (502) and the connecting point c (503) are respectively connected with an upper screen mesh (201) and a lower screen mesh (202), two ends of the linkage rod (7) are respectively connected with a group (2) of the upper layer and a connecting point d (504) of the diamond-shaped linkage rod (5) of the lower layer (2) so that the group 2) moves synchronously with the group 2 of the upper layer and the lower layer of screen mesh (2), the rotating shaft of the variable speed motor (4) is connected with the central shaft of the cam (6) and drives the cam (6) to rotate, so that power is transmitted to the diamond-shaped linkage rod (5) through the eccentric slide way (601), and the diamond-shaped linkage rod (5) drives the screen group (2) to reciprocate according to the track of the eccentric slide way (601).
2. A linear vibrating pushing mechanism according to claim 1, wherein the base circle profile (61) of the eccentric runner (601) of the cam (6) is provided with a convex runner (62) and a concave runner (63), so that the forward speed of the upper screen (201) and the lower screen (202) in the declining direction thereof is greater than the backward speed.
3. The linear vibration pushing mechanism according to claim 1, wherein the linkage mechanism comprises a variable speed motor (4) and a plurality of diamond-shaped linkage rods (5), a cam (6) and linkage rods (7), and the plurality of screen groups (2) of the screen mechanism realize synchronous movement through linkage cooperation of the linkage rods (7) and the diamond-shaped linkage rods (5).
4. A linear vibratory pushing mechanism according to any of claims 1-3, wherein the upper screen (201) and the lower screen (202) are both inclined at an angle α,6 ° - α -20 ° to the horizontal.
5. The linear vibration pushing mechanism according to claim 4, wherein the frame (1) comprises a vertical support rod (101) arranged around the screen mechanism, the bearing mechanism (3) is of an integral plate structure or of a frame structure composed of a plurality of connecting rods, the side edge of the bearing mechanism (3) is fixedly connected with the vertical support rod (101) so as to limit and fix the position of the vertical support rod (101), the bearing mechanism (3) is obliquely arranged and has the same inclination angle with the corresponding upper screen (201) or lower screen (202), and the front edge and the rear edge of the bearing mechanism (3) are covered below the discharge end or the feeding end of the screen group (2).
6. The linear vibration pushing mechanism according to claim 5, wherein the left and right edges of the bearing mechanism (3) are hinged with limiting sliding sheets (9), the other end of each limiting sliding sheet (9) is hinged with the side wall of the upper screen (201) or the lower screen (202) above the limiting sliding sheets, and the limiting sliding sheets (9) rotate or slide along with the reciprocating motion of the upper screen (201) or the lower screen (202) between the bearing mechanism (3) and the screen group (2).
7. The linear vibration pushing mechanism according to claim 6, wherein the frame (1) is provided with baffles (10) at positions corresponding to the feeding end and the discharging end of the screen group (2), and the baffles (10) and the mounting plate (8) cover the side part of the frame (1) in a wrapping manner.
8. The linear vibration pushing mechanism according to claim 7, wherein the mounting plate (8) is provided with a return spring (11) connected with the connection point a (501) of the diamond-shaped linkage rod (5).
9. The linear vibration pushing mechanism according to claim 8, wherein a total feed port (12) is arranged at the top of the frame (1) corresponding to the feed end of the upper screen (201) at the uppermost layer.
10. The linear vibration pushing mechanism according to claim 9, wherein the top of the frame (1) is further provided with a drying exhaust port (13), and the bottom of the frame (1) is provided with a drying air inlet (14).
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| CN201910449273.7A CN110094963B (en) | 2019-05-28 | 2019-05-28 | Linear vibration pushing mechanism |
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| CN201910449273.7A CN110094963B (en) | 2019-05-28 | 2019-05-28 | Linear vibration pushing mechanism |
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| CN110094963B true CN110094963B (en) | 2024-04-12 |
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| CN110094963A (en) | 2019-08-06 |
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