CN104590906B - A kind of material dumping device - Google Patents
A kind of material dumping device Download PDFInfo
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- CN104590906B CN104590906B CN201410788375.9A CN201410788375A CN104590906B CN 104590906 B CN104590906 B CN 104590906B CN 201410788375 A CN201410788375 A CN 201410788375A CN 104590906 B CN104590906 B CN 104590906B
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- spring
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- rotary shaft
- coupling plate
- stretching
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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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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- Auxiliary Methods And Devices For Loading And Unloading (AREA)
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Abstract
The invention discloses a kind of material dumping device, it is characterized in that, including fixed plate, rotary shaft, material plate, the first stretching spring, the second stretching spring and spring coupling plate, wherein, described material plate is fixing with rotary shaft to be connected, and described rotary shaft uses the structure that is rotatably connected to be connected with fixed plate；The top of described first stretching spring and the second stretching spring is articulated with in fixed plate, and bottom is articulated with on spring coupling plate；Described spring coupling plate and material plate connect by rotary shaft is fixing；By arranging machinery, gravity and elastic force effect is utilized to swing unloading materials to the problem solving to need extra power source in material uninstall process, utilize the characteristic of stretching spring, material is made to accelerate unloading and be rapidly completed the recovery operation of material plate, thus save the substantial amounts of energy and saved the substantial amounts of time, improve the efficiency of production.
Description
Technical field
The present invention relates to field of mechanical technique, particularly to a kind of material dumping device.
Background technology
In the industry such as stream machine, agricultural harvesting machinery, material unloading utilizes material by force unbalance to reach the purpose that material unloads often by power source such as hydraulic-driven, motor driving etc. by material lifting to certain altitude or after material inclination.But, at stream machine, in the industry such as agricultural harvesting machinery, owing to using the power source such as hydraulic-driven and motor driving, during material progressive unloading, machinery use cost and cost of labor can be increased, waste the energy, be unfavorable for improving production efficiency.
Summary of the invention
It is an object of the invention to the shortcoming overcoming prior art with not enough, it is provided that a kind of device utilizing gravity and elastic force effect to make material self-unloading.
The purpose of the present invention is achieved through the following technical solutions:
A kind of material dumping device, it is characterized in that, including fixed plate, rotary shaft, material plate, the first stretching spring, the second stretching spring and spring coupling plate, wherein, described material plate is fixing with rotary shaft to be connected, and described rotary shaft uses the structure that is rotatably connected to be connected with fixed plate；The top of described first stretching spring and the second stretching spring is articulated with in fixed plate, and bottom is articulated with on spring coupling plate；Described spring coupling plate and material plate connect by rotary shaft is fixing；
Described rotary shaft, the first stretching spring and the second stretching spring constitute three intersection points with the junction point of spring coupling plate, and the line of described three intersection points is triangular in shape in spring coupling plate plane；Described first stretching spring is positioned at the right side of the second stretching spring；In an initial condition, described rotary shaft is positioned at, with the intersection point of spring coupling plate, the left side that the second stretching spring center line projects at spring coupling plate.
Preferably, spring mounting box it is provided with in described fixed plate, it is provided with adjustment hole on described spring mounting box, it is provided with tension adjustable pole in spring mounting box, described tension adjustable pole one end is hinged with spring mounting box, the tension adjustable pole other end stretches out at the adjustment hole of spring mounting box, and described first stretching spring and the second stretching spring hinge are connected on tension adjustable pole.By arranging tension adjustable pole, the pretightning force of stretching spring can be regulated according to the demand of different material qualitative attribute.
Preferably, described spring mounting box top closure, bottom is uncovered, and described spring coupling plate is positioned at uncovered lower section.Mounting box is arranged to top closure, the form that low side is uncovered, while can effectively protecting each parts in mounting box, it is ensured that the normal rotation work of spring coupling plate.
Preferably, described fixed plate being fixed with limited block, this limited block is provided with two confined planes；Described spring coupling plate is rotationally connected with limited block, and this spring coupling plate is provided with projection, and said two confined planes is arranged at this projection two end points during moving back and forth.Can limit, by arranging limited block, the angle that spring coupling plate tilts, thus control the maximum tilt angle of material plate.
Preferably, described spring coupling plate is fixedly connected on the left side of material plate, centre or right side by rotary shaft.Spring coupling plate is fixed with rotary shaft, can control the angle of inclination of material plate, thus reach the purpose of material unloading, and spring coupling plate is arranged on the rotary shaft, can be arranged on the diverse location of rotary shaft according to practical situation.
Preferably, described spring coupling plate is arranged to triangle, circle or square.
Preferably, described fixed plate being provided with contiguous block, wherein said contiguous block is rotationally connected with described rotary shaft.Due to the existence of contiguous block, make to produce between fixed plate and rotary shaft distance, it is possible to meet spring coupling plate freely rotatable within this distance, thus reach the purpose of unloading materials.
Preferably, described material plate one end is fixed in rotary shaft, and material plate upper surface is set to rough surface.Material plate upper surface is set to rough surface, it can be ensured that when material plate and material tilt to be in critical point, material is not fall off so that critical point cannot be broken through.
Preferably, the initial position of described material plate is in horizontal level.
The operation principle of the present invention is: during original state, material plate is horizontal, and in the course of the work, material is placed on material plate, and driving spring connecting plate is produced a moment of torsion around rotary shaft by material plate self gravitation and material gravity, and direction is clockwise.First stretching spring and the second stretching spring initial position also will produce the moment of torsion around rotary shaft under the effect of pretightning force, and direction is counterclockwise, and the moment of torsion that the moment of torsion that now material plate and material gravity produce produces with two stretching springs contends with.After material reaches some or single body meets the gravity of self-unloading, article two, the moment of torsion that stretching spring produces will can not balance material and the moment of torsion of material plate gravity generation, now rotary shaft turns clockwise, material plate is synchronized with the movement by rotary shaft and spring coupling plate and downward-sloping, article two, the rotation with material plate is changed by the position direction of pulling spring force with the deflection of two stretching springs, if material increases to the projection on spring coupling plate of the second pulling spring force centrage when passing right through rotary shaft and spring coupling plate space intersection, now the moment of torsion of the second stretching spring is zero, material plate and material tilt to be in critical point.When material continues to increase, when second stretching spring center line projection on spring coupling plate leaves rotary shaft with spring coupling plate space intersection, second stretching spring is no longer zero to the moment of torsion of rotary shaft, direction is clockwise, this in opposite direction with by before critical point, now the torque direction that rotary shaft produces is clockwise by material and material plate and the second stretching spring, change nyctitropic second stretching spring and rotary shaft will be produced acceleration clockwise, material plate is made to accelerate to turn clockwise, then under the effect closing moment of torsion, decelerate to the maximum angle that limited block limits, material moves downward along material plate incline direction under gravity and frictional force effect, complete self-unloading action.After material unloads completely, first stretching spring moment of torsion anticlockwise to rotary shaft is more than the second stretching spring and material plate clockwise direction moment of torsion to rotary shaft, material plate obtains acceleration counterclockwise, and counterclockwise accelerated motion is to initial position, so far completes once complete self-unloading process.
The present invention compared with prior art has a following beneficial effect:
(1) by arranging machinery, utilize gravity and elastic force effect unloading materials to the problem solving to need extra power source in material uninstall process, utilize the characteristic of stretching spring, material is made to accelerate unloading and be rapidly completed the recovery operation of material plate, thus save the substantial amounts of energy and saved the substantial amounts of time, improve the efficiency of production.
(2) by arranging tension adjustable pole, the pretightning force of stretching spring can be regulated according to the demand of different material qualitative attribute.
(3) mounting box is arranged to top closure, the form that low side is uncovered, while can effectively protecting each parts in mounting box, it is ensured that the normal rotation work of spring coupling plate.
(4) angle of spring coupling plate inclination can be limited by arranging limited block, thus control the maximum tilt angle of material plate.
(5) in fixed plate, contiguous block is set, so that producing distance between fixed plate and rotary shaft, it is possible to meet spring coupling plate freely rotatable within this distance, thus reach the purpose of unloading materials.
(6) material plate upper surface is set to rough surface, it can be ensured that when being tilted in of material plate and material is in critical point, it is to avoid material because of continuous landing so that critical point cannot be broken through.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the spring mounting box left sectional view in an initial condition of the present invention；
Fig. 3 is present invention position view time the second stretching spring is in critical point in uninstall process；
Fig. 4 is present invention position view at the end of unloading.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
As depicted in figs. 1 and 2, the material dumping device that a kind of elasticity by stretching spring and action of gravity swing, stretch spring 8, second stretch spring 9 and spring coupling plate 2 including fixed plate 4, rotary shaft 5, material plate 6, first, wherein, material plate 6 one end is fixing with rotary shaft 5 to be connected, material plate 6 upper surface is set to rough surface, material plate 6 upper surface be arranged to the purpose of rough surface be able to ensure that material plate 6 and material tilting and when being in critical point, material is not fall off so that critical point cannot be broken through.Specifically, the critical angle of material plate is determined by the coefficient of friction between material and material plate, critical angle should be less than the Self-locking angle between material and material plate, so can ensure that the material on material plate will not slide in critical angle range, critical angle is crossed due to the line of force of the second stretching spring after crossing critical point, material plate can accelerate to turn clockwise, and completes material self-unloading under gravity.The initial position of described material plate 6 is in horizontal level.The right side of fixed plate 4 is provided with contiguous block 10, left side is correspondingly arranged on limited block 3, contiguous block 10 and limited block 3 are all fixed in fixed plate 4, wherein, the contiguous block 10 on right side is rotationally connected with rotary shaft 5, and the limited block 3 on the left of fixed plate 4 is provided with two confined planes, rotary shaft 5 is connected through limited block 3 with spring coupling plate 2, therefore spring coupling plate 2 can be rotationally connected around limited block, and spring coupling plate 2 is provided with projection, and this projection moves back and forth between two confined planes end points of limited block 3.Owing to material plate 6 is connected by rotary shaft 5 is fixing with spring coupling plate 2, therefore spring coupling plate 2 rotates, and drives material plate 6 to rotate upwardly and downwardly, and can control the angle of inclination of material plate 6, thus reach the purpose of material unloading.By arranging contiguous block 10 in fixed plate 4, make to produce between fixed plate 4 and rotary shaft 5 distance, it is possible to meet spring coupling plate 2 freely rotatable within this distance, thus reach the purpose of unloading materials.Spring mounting box 1 it is provided with in fixed plate 4; spring mounting box 1 is positioned at the left side of material plate 6; this spring mounting box 1 top closure; bottom is uncovered; spring mounting box 1 is arranged to top closure, the form that low side is uncovered, while can effectively protecting each parts in mounting box; ensureing the normal rotation work of spring coupling plate 2, described spring coupling plate 2 is positioned at uncovered lower section.It is provided with adjustment hole on spring mounting box 1, tension adjustable pole 7 it is provided with in spring mounting box 1, by arranging tension adjustable pole 7, the pretightning force of stretching spring can be regulated according to the demand of different material qualitative attribute, this tension adjustable pole 7 one end is hinged with spring mounting box 1, and tension adjustable pole 7 other end stretches out at the adjustment hole of spring mounting box 1, and adjustment hole is strip, being provided with different scale, when tension adjustable pole 7 is in different scale, the pretightning force of stretching spring changes the most therewith.The top of described first stretching spring 8 and the second stretching spring 9 is articulated with on tension adjustable pole 7, and bottom is articulated with on spring coupling plate 2.Described limited block 3 is positioned at below spring mounting box 1, when spring coupling plate 2 clockwise movement, the lower limit plane of the protruding collision limited block 3 on spring coupling plate 2, the lower limit plane of limited block 3 will stop the clockwise movement of spring coupling plate 2, thus control the angle that spring coupling plate 2 tilts, and then control the maximum tilt angle of material plate 6.As in figure 2 it is shown, rotary shaft 5, first stretches junction point three intersection points of composition of spring 8 and the second stretching spring 9 and spring coupling plate 2, the line of described three intersection points is triangular in shape in spring coupling plate 2 plane；Described first stretching spring 8 is positioned at the right side of the second stretching spring 9；In an initial condition, described rotary shaft 5 is positioned at, with the intersection point 11 of spring coupling plate 2, the left side that the second stretching spring 9 centrage projects at spring coupling plate 2.
As shown in Figure 2, Figure 3 and Figure 4, during original state, material plate 6 is horizontal, in the course of the work, material is placed on material plate 6, and driving spring connecting plate 2 is produced a moment of torsion around rotary shaft 5 by material plate 6 self gravitation and material gravity, and direction is clockwise.First stretching spring 8 and the second stretching spring 9 initial position also will produce the moment of torsion around rotary shaft 5 under the effect of pretightning force, and direction is counterclockwise, and the moment of torsion that the moment of torsion that now material plate 6 and material gravity produce produces with two stretching springs contends with.After material reaches some or single body meets the gravity of self-unloading, article two, the moment of torsion that stretching spring produces will can not balance material and the moment of torsion of material plate 6 gravity generation, now rotary shaft 5 turns clockwise, material plate 6 is synchronized with the movement by rotary shaft 5 and spring coupling plate 2 and downward-sloping, article two, the rotation with material plate 6 is changed by the position direction of pulling spring force with the deflection of two stretching springs, if material increases to the projection on spring coupling plate 2 of the second stretching spring 9 power centrage when passing right through rotary shaft 5 with spring coupling plate 2 space intersection 11, now the moment of torsion of the second stretching spring 9 is zero, material plate 6 and material tilt to be in critical point.When material continues to increase, when second stretching spring 9 centrage projection on spring coupling plate 2 leaves rotary shaft 5 with spring coupling plate 2 space intersection 11, second stretching spring 9 is no longer zero to the moment of torsion of rotary shaft 5, direction is clockwise, this in opposite direction with by before critical point, now the torque direction that rotary shaft 5 produces is clockwise by material and material plate 6 and the second stretching spring 9, change nyctitropic second stretching spring 9 and rotary shaft 5 will be produced acceleration clockwise, material plate 6 is made to accelerate to turn clockwise, then under the effect closing moment of torsion, decelerate to the maximum angle that limited block 3 limits, material moves downward along material plate 6 incline direction under gravity and frictional force effect, complete self-unloading action.After material unloads completely, first stretching spring 8 moment of torsion anticlockwise to rotary shaft 5 is more than the second stretching spring 9 and the material plate 6 clockwise direction moment of torsion to rotary shaft 5, material plate 6 obtains acceleration counterclockwise, counterclockwise accelerated motion is to initial position, so far completes once complete self-unloading process.
Embodiment 2
The present embodiment is same as in Example 1 in addition to following characteristics.
Described spring coupling plate 2 is arranged in rotary shaft 5, also can be arranged on the right side of rotary shaft 5 according to the installation situation of material dumping device.Described spring coupling plate 2 is arranged to circle.Described material plate 6 one end is fixing with rotary shaft 5 to be connected, and the upper surface of material plate 6 is in granular form rough surface.
Embodiment 3
The present embodiment is same as in Example 1 in addition to following characteristics.
Described spring coupling plate 2 is arranged in rotary shaft 5, also can be arranged in the middle of rotary shaft 5 according to the installation situation of material dumping device.Described spring coupling plate 2 is arranged to square.Described material plate 6 one end is fixing with rotary shaft 5 to be connected, and the upper surface of material plate 6 is the rough surface of striated.
Above-mentioned for the present invention preferably embodiment; but embodiments of the present invention are not limited by foregoing; the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify; all should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (9)
1. a material dumping device, it is characterized in that, including fixed plate, rotary shaft, material plate, the first stretching spring, the second stretching spring and spring coupling plate, wherein, described material plate is fixing with rotary shaft to be connected, and described rotary shaft uses the structure that is rotatably connected to be connected with fixed plate；The top of described first stretching spring and the second stretching spring is articulated with in fixed plate, and bottom is articulated with on spring coupling plate；Described spring coupling plate and material plate connect by rotary shaft is fixing；
Described rotary shaft, the first stretching spring and the second stretching spring constitute three intersection points with the junction point of spring coupling plate, and the line of described three intersection points is triangular in shape in spring coupling plate plane；Described first stretching spring is positioned at the right side of the second stretching spring；In an initial condition, described rotary shaft is positioned at, with the intersection point of spring coupling plate, the left side that the second stretching spring center line projects at spring coupling plate.
Material dumping device the most according to claim 1, it is characterized in that, spring mounting box it is provided with in described fixed plate, it is provided with adjustment hole on described spring mounting box, it is provided with tension adjustable pole in spring mounting box, described tension adjustable pole one end is hinged with spring mounting box, and the tension adjustable pole other end stretches out at the adjustment hole of spring mounting box, and described first stretching spring and the second stretching spring hinge are connected on tension adjustable pole.
Material dumping device the most according to claim 2, it is characterised in that described spring mounting box top closure, bottom is uncovered, and described spring coupling plate is positioned at uncovered lower section.
Material dumping device the most according to claim 1, it is characterised in that be fixed with limited block in described fixed plate, this limited block is provided with two confined planes；Described spring coupling plate is rotationally connected with limited block, and this spring coupling plate is provided with projection, and said two confined planes is arranged at this projection two end points during moving back and forth.
Material dumping device the most according to claim 1, it is characterised in that described spring coupling plate is fixedly connected on the left side of material plate, centre or right side by rotary shaft.
Material dumping device the most according to claim 1, it is characterised in that described spring coupling plate is arranged to triangle, circular or square.
Material dumping device the most according to claim 1, it is characterised in that be provided with contiguous block in described fixed plate, wherein said contiguous block is rotationally connected with described rotary shaft.
Material dumping device the most according to claim 1, it is characterised in that described material plate one end is fixed in rotary shaft, and material plate upper surface is set to rough surface.
9. according to the material dumping device described in any one of claim 1-8, it is characterised in that the initial position of described material plate is in horizontal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788375.9A CN104590906B (en) | 2014-12-17 | 2014-12-17 | A kind of material dumping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788375.9A CN104590906B (en) | 2014-12-17 | 2014-12-17 | A kind of material dumping device |
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| Publication Number | Publication Date |
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| CN104590906A CN104590906A (en) | 2015-05-06 |
| CN104590906B true CN104590906B (en) | 2016-11-23 |
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| CN201410788375.9A Active CN104590906B (en) | 2014-12-17 | 2014-12-17 | A kind of material dumping device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105173678B (en) * | 2015-08-28 | 2017-09-05 | 贵州西南工具(集团)有限公司 | Telescopic unloading auxiliary device |
| CN108151308A (en) * | 2017-12-21 | 2018-06-12 | 郑州赫恩电子信息技术有限公司 | A kind of fuel dehumidifying power economized boiler of automatic turning blanking |
| CN109205243B (en) * | 2018-08-31 | 2024-01-12 | 贵州新安航空机械有限责任公司 | Automatic screening and separating component for components |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2699153A1 (en) * | 1992-12-14 | 1994-06-17 | Biemont Soneco Ind | Method of vertical transfer by gravity - includes placing products on top of conduit and to free them in conduit, this conduit having deformable inflatable pocket helping product to descend through conduit |
| CN200980261Y (en) * | 2006-11-27 | 2007-11-28 | 佛山市倬豪热熔胶设备有限公司 | Sugar cane-collecting apparatus |
| CN202038738U (en) * | 2010-12-01 | 2011-11-16 | 中煤第三建设（集团）有限责任公司三十工程处 | Powerless tippler |
| CN203467234U (en) * | 2013-08-30 | 2014-03-12 | 钦州学院 | Sugarcane collecting device of the sugarcane harvester |
| CN204342028U (en) * | 2014-12-17 | 2015-05-20 | 华南农业大学 | A kind of material self-unloading device |
-
2014
- 2014-12-17 CN CN201410788375.9A patent/CN104590906B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2699153A1 (en) * | 1992-12-14 | 1994-06-17 | Biemont Soneco Ind | Method of vertical transfer by gravity - includes placing products on top of conduit and to free them in conduit, this conduit having deformable inflatable pocket helping product to descend through conduit |
| CN200980261Y (en) * | 2006-11-27 | 2007-11-28 | 佛山市倬豪热熔胶设备有限公司 | Sugar cane-collecting apparatus |
| CN202038738U (en) * | 2010-12-01 | 2011-11-16 | 中煤第三建设（集团）有限责任公司三十工程处 | Powerless tippler |
| CN203467234U (en) * | 2013-08-30 | 2014-03-12 | 钦州学院 | Sugarcane collecting device of the sugarcane harvester |
| CN204342028U (en) * | 2014-12-17 | 2015-05-20 | 华南农业大学 | A kind of material self-unloading device |
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| CN104590906A (en) | 2015-05-06 |
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