CN102133935B - Logarithmic spiral type round bundling and forming device and method - Google Patents
Logarithmic spiral type round bundling and forming device and method Download PDFInfo
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Abstract
The invention relates to a logarithmic spiral type round bundling and forming device and a method. The logarithmic spiral type round bundling and forming device is characterized by comprising a logarithmic spiral type feeding mechanism, a logarithmic spiral type forming cabin and a hydraulic mechanism which are arranged on a frame, wherein the logarithmic spiral type feeding mechanism comprises a driving wheel, a main guide wheel, a plurality of driven guide wheels and a conveying belt surrounding all the wheels; the conveying belt of the main guide wheel and all the driven guide wheels is a section of logarithmic spiral type working surface; the forming cabin comprises two cabin walls rotatably arranged on the frame; the two cabin walls are symmetrically provided with logarithmic spiral type connecting sector-shaped and arc-line-shaped guide rails; a plurality of outer guide wheels corresponding to arc lines of the guide rails are arranged between the two cabin walls at the outer sides of the guide rails; a driving chain wheel arranged in front of the top ends of the two cabin walls and a driven chain wheel arranged at the tail ends of the two cabin walls are in meshed connection by two chains; the two chains are respectively limited in gaps among all the outer guide wheels and the guide rails; a series of pressing and bundling units are tightly lap-jointed between the two chains; and the hydraulic mechanism comprises two hydraulic cylinders hinged on the frame, and piston rods at the other ends of the two hydraulic cylinders are respectively hinged on the corresponding cabin walls.
Description
Technical field
The present invention relates to a kind of circle and tie bander and manufacturing process thereof, particularly about a kind of logarithmic spiral formula circle bundle building mortion and method.
Background technology
A circle bundle bander is a processing equipment of material being processed cylindrical bundle of shape thing, and its working process is that rotation is compressed into round bundle mass transport feeding facility, and adopts net or rope winding circle to tie.The advantage of circle bundle bander is simple in structure; Service adjustment is convenient, and the material applicability is wide, but compares with side's bundle bander; Also exist the low shortcoming of operating efficiency; Therefore, how to improve the operating efficiency and the operational reliability of circle bundle bander, the universal and popularization of circle being tied bander has significance.
Through the analytical investigation of existing circle bundle bander is found: the phenomenon that gets congestion during the feeding material, and circle bundle forming speed is the major cause of influence circle bundle bander operation quality and operating efficiency slowly.The core component of circle bundle bander is the shaping cabin, and its function is to make material constantly rotation in the inner chamber in shaping cabin, forms round bundle gradually.In traditional shaping cabin; No matter which kind of form the baling parts take, the inner chamber that all baling parts surround all is cylindrical, this shaping cabin simple in structure; Be convenient to processing; But material is from be fed into forming process, and cross-sectional area sharply diminishes, thereby the feeding difficulty takes place, blocks up, phenomenon such as feeding mouth damage of components.Adopt traditional circle to tie manufacturing process, circle is bundled in that material can constantly gather because of being compressed the creep that produces in the pressing process, and can not obtain discharging, and causes bundled needed power sharply to increase, the damage drive disk assembly.Have significant impact because the feeding homogeneity of circle bundle bander and baling change in resistance tie to be shaped to the bander circle, therefore, require feeding even as far as possible, the baling change in resistance is even.
Summary of the invention
To the problems referred to above, it is even, smooth and easy to the purpose of this invention is to provide a kind of material feeding, logarithmic spiral formula circle bundle building mortion and method that circle bundle forming process medium power input fluctuation is little.
For realizing above-mentioned purpose; The present invention takes following technical scheme: a kind of logarithmic spiral formula circle bundle building mortion; It is characterized in that: it comprises logarithmic spiral formula feeding mechanism, logarithmic spiral formula shaping cabin and the hydraulic gear that is arranged on the frame, and the input end in said shaping cabin is positioned at the mouth of said feeding mechanism; Said feeding mechanism comprises the drive wheel that driven by power plant, capstan, somely takes turns a load-transfer device of setting from guide wheel with around each; Said capstan is one section logarithmic spiral shape running surface with each said said load-transfer device that supports from guide wheel; Said shaping cabin comprises symmetrically arranged two bulkheads, and said two bulkhead tops are rotated and are arranged on the said frame; Be symmetrically arranged with a guide rail on said two bulkheads, guide rail is logarithmic spiral, and to connect fan-shaped circular arc linear; Between said two bulkheads in the said guide rail outside, be provided with and the cooresponding some outer guide wheels of the camber line of said guide rail, the frame in the place ahead, said two bulkhead top is provided with the drive sprocket of power plant driving; The end of said two bulkheads is provided with a driven sprocket; Said drive sprocket is connected through two chain engages with said driven sprocket; Two said chains are separately positioned on the two axial ends of said drive sprocket and driven sprocket, and are limited in the gap between each said outer guide wheel and the said guide rail; Be provided with a series of baling unit between the two said chains, closely overlap between each said baling unit; Said hydraulic gear comprises the hydraulic actuating cylinder that is hinged on respectively on the outer side frame of said two bulkheads, and the piston rod of the two said hydraulic actuating cylinder other ends is hinged on respectively on the said bulkhead of a corresponding side.
Said baling unit is dovetail form chain type baling unit, and each said dovetail form chain type baling unit comprises that a cross section is the baling plate of dovetail form, and the two ends of said baling plate are provided with the connecting panel that connects the said chain cochain of corresponding side sheet.
The hinged place of two said piston rods and two said bulkheads is provided with the hydraulic actuating cylinder safety lock.
In the said feeding mechanism; Said load-transfer device is following along capstan and the logarithmic spiral shape running surface characteristic that respectively forms from the direction of guide wheel input end to the shaping cabin: suppose that x-o-y is is the system of axes of origin of coordinates o with the preformed circle center of tying in the shaping cabin, then logarithmic spiral shape running surface and the intersection of its extended line in the x-o-y face meet following curvilinear equation:
ρ＝ke
θcotλ
Wherein, ρ is a polar radius, and the at a point distance circle on expression logarithmic spiral shape running surface and its extended line is bundled in the distance at x-o-y face center; K obtains through the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ is the angle of polar radius ρ and coordinate axle o-x.λ is any tangent line and the angle of polar radius ρ on this logarithmic spiral; In the following formula; Make m=cot λ; Then the radius of curvature of at a point is
i=1 on
curve; 2; 3, the parametric equation of constructing under its rectangular coordinate system can get:
x＝ke
mθcosθ
y＝ke
mθsinθ
According to the above-mentioned parameter equation, and the certain θ angle of substitution, can obtain constituting the capstan of logarithmic spiral shape running surface and respectively from (x, y) coordinate position of guide wheel.
In the said shaping cabin, the track of the logarithmic spiral section of guide rail has following characteristic: suppose that x-o-y is is the system of axes of origin of coordinates o with a circle bundle center, the logarithmic spiral shape section of guide rail meets following curvilinear equation in the projection of x-o-y face:
ρ′＝k′e′
θ′cotλ′
Wherein, ρ ' is a polar radius, and the at a point distance circle on the logarithmic spiral shape section of expression guide rail is bundled in the distance at x-o-y face center; K ' obtains through the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ ' is polar radius ρ ' and the angle of coordinate axle o-x.λ ' is any angle of tangent line and polar radius ρ ' on this logarithmic spiral; In the following formula; Make m '=cot λ '; Then the radius of curvature of at a point is
i=1 on
this logarithmic spiral; 2; 3, the parametric equation of constructing under its rectangular coordinate system can get:
x＝k′e
m′θ′cosθ′
y＝k′e
m′θ′sinθ′
According to the above-mentioned parameter equation, and the certain θ ' angle of substitution, can obtain (x, y) coordinate position of each outer guide wheel; α '=90 °-λ ', the logarithmic spiral shape driving surface that each baling unit of α ' expression is formed and the friction angle of material; And α '≤ψ, ψ are the self-locking friction angle of material and baling plate unit.
A kind of logarithmic spiral formula of said apparatus circle bundle manufacturing process, it may further comprise the steps: 1) material is through the load-transfer device feeding of feeding mechanism, the running surface through the logarithmic spiral formula with the first compression of material after, send into the shaping cabin; 2) material falls into shaping bilge portion, and power plant driving drive sprocket drives driven sprocket through chain and rotates, and material is accepted second-compressed through the material compression section of the friction force upward movement entering logarithmic spiral shape of the baling unit on the chain; 3) the material continuation gets into fan-shaped circle and ties the maintenance section, along with continuous feeding, the compacting of material, forms round bundle at last; 4) circle bundle is shaped and through after being arranged on that the shaping cabin is exterior and wrapping up in net mechanism or a bundle rope mechanism and wrap up in net or bundle rope; The drive sprocket stall, 5) rise of Driven by Hydraulic Cylinder piston rod, drive the shaping cabin and prop up; Make circle in the shaping cabin tie to emit and fall, a work cycle is accomplished.
The present invention is owing to take above technical scheme; It has the following advantages: 1, feeding mechanism of the present invention is owing to be provided with logarithmic spiral shape running surface; Has constant feed angle between logarithmic spiral shape running surface and the shaping cabin; Therefore, can make material evenly get into the shaping cabin, can solve material and feed the problem of blocking up.2, the present invention is owing to adopt logarithmic spiral formula shaping cabin and dovetail form baling plate, and when material was compressed rotation in the shaping cabin, the friction angle of strict control had guaranteed material and the self-locking of baling plate; Avoided slide relative; Improve bundling efficient, reduced the consumption of power of bundling, reduced the operation fault.3, the present invention is owing to be provided with dovetail form chain type baling unit between two chains; And adjacent dovetail form chain type baling unit in the course of the work, and overlap joint has improved the tightness in shaping cabin each other; Reduced loss of material, and protruding dovetail has the increase function of friction.4, the present invention is shaped the compression section in cabin owing to have a logarithmic spiral shape guide rail; It is constant that this specific, unique shape makes material friction receives force direction and the folded angle of sense of motion in feeding, when being shaped, thus the little purpose that reaches that feeding is smooth and easy, a circle bundle forming process medium power input is fluctuateed.Structure design of the present invention is ingenious, and is easy to operate, can be widely used in the material bundling process.
Description of drawings
Fig. 1 is apparatus of the present invention structural representations
Fig. 2 is a feeding mechanism structural representation of the present invention
Fig. 3 is the present invention's cabin structure scheme drawing that is shaped
Fig. 4 is be shaped cabin guide rail and an outer guide wheel installation site scheme drawing of the present invention
Fig. 5 is a dovetail form chain type baling plate structure scheme drawing of the present invention
Fig. 6 is material feeding of the present invention, shaping track scheme drawing
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
As shown in Figure 1, apparatus of the present invention comprise the logarithmic spiral formula feeding mechanism 1 and logarithmic spiral formula shaping cabin 2 that is arranged on the frame, and shaping cabin 2 is arranged on the mouth of feeding mechanism 1.
Like Fig. 1, shown in Figure 2, feeding mechanism 1 comprises the drive wheel that driven by power plant 11, a capstan 12, somely takes turns a load-transfer device 14 of setting from guide wheel 13 with around each.Drive wheel 11, capstan 12 and respectively be set in parallel on the frame through a guide wheel shaft respectively from guide wheel 13; Wherein, respectively be positioned at the oblique below of capstan 12, and be the logarithmic spiral trajectory alignment, until the input end that is aligned to shaping cabin 2 from guide wheel 13.Load-transfer device 14 forms one section logarithmic spiral shape running surface 15 from the direction of capstan 12 2 input ends to the shaping cabin through respectively supporting from guide wheel 13, and preformed circle is tied and formed a constant feed angle in logarithmic spiral shape running surface 15 and the shaping cabin 2.
In the foregoing description, be provided with three at least from guide wheel 13.
Like Fig. 1, Fig. 3, shown in Figure 4, shaping cabin 2 comprises the drive sprocket 24 that two bulkheads 21, some outer guide wheels 22, a driven sprocket 23 and are driven by power plant.
Two bulkheads 21 are symmetrical set; Each bulkhead 21 is synthesized in one by a quadrntnt and a logarithm scroll body respectively; The outer rim radian of bulkhead 21 is the curve (as shown in Figure 4) that a fan-shaped line becomes with a logarithm scroll; Wherein logarithmic spiral shape section is material compression section 25, and quadrntnt Duan Weiyuan ties and keeps section 26.The top of two bulkheads 21 is rotated through rotating shaft 27 and is arranged on the frame.Be respectively arranged with on the relative two sides of two bulkheads 21 one with fan-shaped body concentric fan-shaped boss 28.The radian that is respectively arranged with a guide rail 29, two guide rails 29 on the bulkhead in two fan-shaped boss, 28 outsides is all consistent with the outer rim radian of bulkhead 21, and to connect fan-shaped circular arc linear for logarithmic spiral.
Some outer guide wheels 22 are arranged between two bulkheads 21 in guide rail 29 outsides along the outer rim radian parallel interval of bulkhead 21, and the two axial ends of each outer guide wheel 22 is connected with the bulkhead 21 of a corresponding side respectively.
Be provided with a series of baling unit 31 between two chains 30, closely overlap between each baling unit 31, the two ends of each baling unit 31 are corresponding respectively to be arranged on the chain sheet of a corresponding side chain bar 30.Two chains 30 guide rail 29 and outside transmission between the gap that forms of guide wheel 22; Thereby make baling unit 31 form in the inboard in shaping cabin 2 one with the identical running orbit of guide rail 29 radians; It is linear to be that logarithmic spiral connects fan-shaped circular arc; Wherein, the logarithmic spiral section is material compression section 25, and fan-shaped section is circle bundle maintenance section 26.In the course of the work, a series of baling unit under the driving of drive sprocket 24 with chain 30 along guide rail 29 motion compresses materials, bundle be shaped and wrap up in net back stop motion until circle.Owing to closely overlap between each baling unit 31, therefore, can effectively stop material from leakage, reduced the bundling loss.
As shown in Figure 5; Baling unit 31 can be dovetail form chain type baling unit; Each dovetail form chain type baling unit comprises that a cross section is the baling plate 32 of dovetail form; The two ends of baling plate 32 are provided with the connecting panel 33 that connects the chain sheet on the corresponding side chain bar 30, are connected through rivet between connecting panel 33 and the chain sheet.
In the foregoing description, under the condition that satisfies the real work transmission performance, other shapes, for example I shape, flute profile etc. also can be adopted in the baling plate cross section in the baling unit 31.
As shown in Figure 3; Two bulkheads, 21 arranged outside in shaping cabin 2 have hydraulic gear 4; Hydraulic gear 4 comprises the hydraulic actuating cylinder 41 that is hinged on respectively on two bulkheads, the 21 outer side frames; The piston rod 42 of two hydraulic actuating cylinders, 41 other ends is hinged on respectively on the bulkhead 21 of shaping cabin 2 corresponding sides, and the hinged place of two-piston bar 42 and two bulkheads 21 is provided with hydraulic actuating cylinder safety lock 43, the safety precaution when keeping in repair to be used for facility.
As shown in Figure 6; Load-transfer device 14 in the feeding mechanism 1 satisfies following characteristic along capstan 12 and the logarithmic spiral shape running surface 15 that respectively forms from the direction of guide wheel 13 2 input ends to the shaping cabin: suppose that x-o-y is is the system of axes of origin of coordinates o with the preformed circle center of tying in the shaping cabin 2, then logarithmic spiral shape running surface 15 and the intersection of its extended line 151 in the x-o-y face meet following curvilinear equation:
ρ＝ke
θcotλ
Wherein, ρ is a polar radius, and the at a point distance circle on expression logarithmic spiral shape running surface 15 and its extended line 151 is bundled in the distance at x-o-y face center; K obtains through the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ is the angle of polar radius ρ and coordinate axle o-x.λ is any tangent line and the angle of polar radius ρ on this logarithmic spiral.In the following formula; Make m=cot λ; Then the radius of curvature of at a point is
(i=1 on
curve; 2; The parametric equation of 3), constructing under its rectangular coordinate system can get:
x＝ke
mθcosθ
y＝ke
mθsinθ
According to the above-mentioned parameter equation, and the certain θ angle of substitution, can obtain constituting the capstan 12 of logarithmic spiral shape running surface 15 and respectively from (x, y) coordinate position of the guide wheel shaft of guide wheel 13.In the actual mechanical process because the needed λ value of the material of different compression properties is different, therefore, through change m value can obtain needed guide wheel shaft (x, y) coordinate position make things convenient for the user to adjust.
As shown in Figure 4; In the shaping cabin 2; Guide rail 29 is consistent with the outer rim radian of bulkhead 21, is the curve that a fan-shaped line becomes with a logarithm scroll, wherein; Logarithmic spiral shape track has following characteristic: suppose that x-o-y is is the system of axes of origin of coordinates o with a circle bundle center, the logarithmic spiral shape section of guide rail 29 meets following curvilinear equation in the projection of x-o-y face:
ρ′＝k′e′
θ′cotλ′
Wherein, ρ ' is a polar radius, and the at a point distance circle on the logarithmic spiral shape section of expression guide rail 29 is bundled in the distance at x-o-y face center; K ' obtains through the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ ' is polar radius ρ ' and the angle of coordinate axle o-x.λ ' is any angle of tangent line and polar radius ρ ' on this logarithmic spiral.In the following formula; Make m '=cot λ '; Then the radius of curvature of at a point is
(i=1 on
this logarithmic spiral; 2; The parametric equation of 3), constructing under its rectangular coordinate system can get:
x＝k′e
m′θ′cosθ′
y＝k′e
m′θ′sinθ′
Because the radian of each outer guide wheel 22 formation is consistent with the guide rail radian, therefore, according to the above-mentioned parameter equation, and the certain θ ' angle of substitution, can obtain (x, y) coordinate position of each outer guide wheel 22 guide wheel shaft.In the actual mechanical process because the needed λ ' of the material value of different compression properties is different, therefore, through change m ' value can obtain needed guide wheel shaft (x, y) coordinate position make things convenient for the user to adjust.
In the foregoing description, α '=90 °-λ ', the logarithmic spiral shape driving surface that each baling unit of α ' expression is formed and the friction angle of material.α '≤ψ, wherein ψ is the self-locking friction angle of material and baling plate unit 31, the value of ψ can or be consulted relevant handbook through test and obtained.Because therefore α '≤ψ, can guarantee the self-locking of material and baling unit 31, has avoided the slide relative of material and baling unit 31, has improved bundling efficient.
Definition by above-mentioned logarithmic spiral can be known; The folded angle λ (λ ') of the tangential direction of at a point and polar radius ρ (ρ ') is a certain value on the same curve; This unique advantages has guaranteed in the process of material by load-transfer device 14 feeding shaping cabins 2; The lift angle of material acceptance compression is constant, and sectional area evenly diminishes.Tie the design in shaping cabin with traditional circle and compare, the present invention has obviously increased the anti-clogging ability of facility.
As shown in Figure 6, the present invention's circle bundle manufacturing process is:
1) material is through load-transfer device 14 feedings of feeding mechanism 1, and the running surface 15 of the logarithmic spiral formula of feeding mechanism 1 through after compressing for the first time, is sent into shaping cabin 2 with material;
2) material falls into 2 bottoms, shaping cabin; Under power plant drives; Drive sprocket 24 drives driven sprocket 23 through chain 30 and rotates; Baling unit 31 on the chain 30 is one section logarithmic spiral curve in the path of motion in this stage, and material gets into compression section 25 and accepts second-compressed under the friction force effect of a series of baling unit 31;
3) along with the continuous operation of chain, the material upward movement gets into circle and ties maintenance section 26, along with continuous feeding, the compacting of material, forms circle at last and ties;
4) circle bundle is shaped and shaping cabin 2 is exterior wraps up in net mechanism or net or bundle rope are wrapped up in a bundle rope mechanism through being arranged on;
5) hydraulic actuating cylinder 41 piston rod 42 rise, and drive shaping cabin 2 and prop up, and make shaping cabin 2 interior circles tie to emit and fall, and a work cycle is accomplished.
Wrap up in net mechanism and can adopt prior art, no longer specify at this with a bundle rope mechanism.
In the foregoing description; Two bulkheads 21 in shaping cabin 2 can be other shapes; But it is linear that the guide rail 29 on two bulkheads 21 must be that logarithmic spiral connects fan-shaped circular arc; Thus, the baling unit 31 that closely overlaps on two chains 30 could form the material compression section 25 of logarithmic spiral shape and tie maintenance section 26 with fan-shaped circle in shaping cabin 2.
In view of the restriction of contemporary manufacturing technology, part or the device with logarithmic spiral shape of the present invention, part curve are to form through a series of curve fittings that curvature can be led.Those of ordinary skill in the related art of the present invention are to be understood that: even adopt approximate logarithmic spiral also can embody the preceence of the present invention with respect to prior art.
Above-mentioned each embodiment only is used to explain the present invention, and wherein the structure of each parts, connection mode etc. all can change to some extent, and every equivalents of on the basis of technical scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.
Claims (8)
1. a logarithmic spiral formula circle is tied building mortion, and it is characterized in that: it comprises logarithmic spiral formula feeding mechanism, logarithmic spiral formula shaping cabin and the hydraulic gear that is arranged on the frame, and the input end in said shaping cabin is positioned at the mouth of said feeding mechanism;
Said feeding mechanism comprises the drive wheel that driven by power plant, capstan, somely takes turns a load-transfer device of setting from guide wheel with around each; Said capstan is one section logarithmic spiral shape running surface with each said said load-transfer device that supports from guide wheel;
Said shaping cabin comprises symmetrically arranged two bulkheads, and said two bulkhead tops are rotated and are arranged on the said frame; Be symmetrically arranged with a guide rail on said two bulkheads, guide rail is logarithmic spiral, and to connect fan-shaped circular arc linear; Between said two bulkheads in the said guide rail outside, be provided with and the cooresponding some outer guide wheels of the camber line of said guide rail, the frame in the place ahead, said two bulkhead top is provided with the drive sprocket of power plant driving; The end of said two bulkheads is provided with a driven sprocket; Said drive sprocket is connected through two chain engages with said driven sprocket; Two said chains are separately positioned on the two axial ends of said drive sprocket and driven sprocket, and are limited in the gap between each said outer guide wheel and the said guide rail; Be provided with a series of baling unit between the two said chains, closely overlap between each said baling unit;
Said hydraulic gear comprises the hydraulic actuating cylinder that is hinged on respectively on the outer side frame of said two bulkheads, and the piston rod of the two said hydraulic actuating cylinder other ends is hinged on respectively on the said bulkhead of a corresponding side.
2. a kind of logarithmic spiral formula circle bundle building mortion as claimed in claim 1; It is characterized in that: said baling unit is dovetail form chain type baling unit; Each said dovetail form chain type baling unit comprises that a cross section is the baling plate of dovetail form, and the two ends of said baling plate are provided with the connecting panel that connects the said chain cochain of corresponding side sheet.
3. a kind of logarithmic spiral formula circle bundle building mortion as claimed in claim 1, it is characterized in that: the hinged place of two said piston rods and two said bulkheads is provided with the hydraulic actuating cylinder safety lock.
4. a kind of logarithmic spiral formula circle bundle building mortion as claimed in claim 2, it is characterized in that: the hinged place of two said piston rods and two said bulkheads is provided with the hydraulic actuating cylinder safety lock.
5. like claim 1 or 2 or 3 or 4 described a kind of logarithmic spiral formula circle bundle building mortions; It is characterized in that: in the said feeding mechanism; Said load-transfer device is following along capstan and the logarithmic spiral shape running surface characteristic that respectively forms from the direction of guide wheel input end to the shaping cabin: suppose that x-o-y is is the system of axes of origin of coordinates o with the preformed circle center of tying in the shaping cabin, then logarithmic spiral shape running surface and the intersection of its extended line in the x-o-y face meet following curvilinear equation:
ρ＝ke
θcotλ
Wherein, ρ is a polar radius, and the at a point distance circle on expression logarithmic spiral shape running surface and its extended line is bundled in the distance at x-o-y face center; K obtains through the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ is the angle of polar radius ρ and coordinate axle o-x; λ is any tangent line and the polar radius on this logarithmic spiral
The angle of ρ; In the following formula; Make m=cot λ; Then the radius of curvature of at a point is
i=1 on
curve; 2; 3 ..., the parametric equation of constructing under its rectangular coordinate system can get:
x＝ke
mθcosθ
y＝ke
mθsinθ
According to the above-mentioned parameter equation, and the certain θ angle of substitution, can obtain constituting the capstan of logarithmic spiral shape running surface and respectively from (x, y) coordinate position of guide wheel.
6. like claim 1 or 2 or 3 or 4 described a kind of logarithmic spiral formula circle bundle building mortions; It is characterized in that: in the said shaping cabin; The track of the logarithmic spiral section of guide rail has following characteristic: suppose that x-o-y is is the system of axes of origin of coordinates o with a circle bundle center, the logarithmic spiral shape section of guide rail meets following curvilinear equation in the projection of x-o-y face:
ρ′＝k′e′
θ′cotλ′
Wherein, ρ ' is a polar radius, and the at a point distance circle on the logarithmic spiral shape section of expression guide rail is bundled in the distance at x-o-y face center; K ' obtains through the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ ' is polar radius ρ ' and the angle of coordinate axle o-x; λ ' is any angle of tangent line and polar radius ρ ' on this logarithmic spiral; In the following formula; Make m '=cot λ '; Then the radius of curvature of at a point is
i=1 on
this logarithmic spiral; 2; 3 ..., the parametric equation of constructing under its rectangular coordinate system can get:
x＝k′e
m′θ′cosθ′
y＝k′e
m′θ′sinθ′
According to the above-mentioned parameter equation, and the certain θ ' angle of substitution, can obtain (x, y) coordinate position of each outer guide wheel; α '=90 °-λ ', the logarithmic spiral shape driving surface that each baling unit of α ' expression is formed and the friction angle of material; And α '≤ψ, ψ are the self-locking friction angle of material and baling plate unit.
7. a kind of logarithmic spiral formula circle bundle building mortion as claimed in claim 5; It is characterized in that: in the said shaping cabin; The track of the logarithmic spiral section of guide rail has following characteristic: suppose that x-o-y is is the system of axes of origin of coordinates o with a circle bundle center, the logarithmic spiral shape section of guide rail meets following curvilinear equation in the projection of x-o-y face:
ρ′＝k′e′
θ′cotλ′
Wherein, ρ ' is a polar radius, and the at a point distance circle on the logarithmic spiral shape section of expression guide rail is bundled in the distance at x-o-y face center; K ' obtains through the material compression experiment for characterizing the parameter of this logarithmic spiral curvature characteristic; θ ' is polar radius ρ ' and the angle of coordinate axle o-x; λ ' is any angle of tangent line and polar radius ρ ' on this logarithmic spiral; In the following formula; Make m '=cot λ '; Then the radius of curvature of at a point is
i=1 on
this logarithmic spiral; 2; 3 ..., the parametric equation of constructing under its rectangular coordinate system can get:
x＝k′e
m′θ′cosθ′
y＝k′e
m′θ′sinθ′
According to the above-mentioned parameter equation, and the certain θ ' angle of substitution, can obtain (x, y) coordinate position of each outer guide wheel; α '=90 °-λ ', the logarithmic spiral shape driving surface that each baling unit of α ' expression is formed and the friction angle of material; And α '≤ψ, ψ are the self-locking friction angle of material and baling plate unit.
8. the logarithmic spiral formula circle like each said device of claim 1～7 is tied manufacturing process, and it may further comprise the steps:
1) the load-transfer device feeding of material through feeding mechanism, the running surface through the logarithmic spiral formula with the first compression of material after, send into the shaping cabin;
2) material falls into shaping bilge portion, and power plant driving drive sprocket drives driven sprocket through chain and rotates, and material is accepted second-compressed through the material compression section of the friction force upward movement entering logarithmic spiral shape of the baling unit on the chain;
3) the material continuation gets into fan-shaped circle and ties the maintenance section, along with continuous feeding, the compacting of material, forms round bundle at last;
4) circle bundle is shaped and through after being arranged on that the shaping cabin is exterior and wrapping up in net mechanism or a bundle rope mechanism and wrap up in net or bundle rope, the drive sprocket stall,
5) the Driven by Hydraulic Cylinder piston rod rises, and drives the shaping cabin and props up, and makes the circle shaping cabin in tie to emit and falls a work cycle completion.
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| CN114810962B (en) * | 2022-05-23 | 2024-05-24 | 中国农业大学 | Semi-circulation ball type chain wheel position adjusting device and adjusting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10240091A1 (en) * | 2002-08-28 | 2004-03-11 | Deere & Company, Moline | wrapping machine |
| CN200969765Y (en) * | 2006-04-03 | 2007-11-07 | 中国农业机械化科学研究院呼和浩特分院 | Grass picking and round baling machine |
| DE102006033076A1 (en) * | 2006-07-14 | 2008-01-24 | Usines Claas France S.A.S., St. Rémy-Woippy | Binding device on agricultural round balers |
| CN101185392A (en) * | 2007-12-27 | 2008-05-28 | 东北农业大学 | Steel roller type bundling gathering binder |
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2011
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