CN109379936B - Quantitative adjustable mechanism for opening angle and inclination angle of double-disc soil covering device - Google Patents

Quantitative adjustable mechanism for opening angle and inclination angle of double-disc soil covering device Download PDF

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CN109379936B
CN109379936B CN201811235934.8A CN201811235934A CN109379936B CN 109379936 B CN109379936 B CN 109379936B CN 201811235934 A CN201811235934 A CN 201811235934A CN 109379936 B CN109379936 B CN 109379936B
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assembly
hole
disc
shaft
soil covering
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CN109379936A (en
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郭慧
王立春
贾洪雷
张卓
黄东岩
王刚
赵佳乐
袁洪方
庄健
齐江涛
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Jilin University
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Jilin University
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/06—Machines for making or covering drills or furrows for sowing or planting
    • A01C5/066—Devices for covering drills or furrows

Abstract

A quantitative adjustable mechanism of opening angle and dip angle of a double-disc soil covering device belongs to the technical field of agricultural machinery, in the mechanism of the invention, a disc component I and an adjusting shaft component I are positioned on the right side of a rack, an adjusting shaft component II and a disc component II are positioned on the left side of the rack, the disc component I and the disc component II have the same structure and opposite directions, the adjusting shaft component I and the adjusting shaft component II have the same structure and opposite directions, the disc component I, the adjusting shaft component II and the disc component II are symmetrically arranged about an a-a axis in the center of the rack, and the quantitative adjustment of the opening angle and the dip angle of the double-disc soil covering device is realized through the quantitative rotation of a hole III on a clamping piece; the invention can adapt the soil covering process of the seeding operation to different operation conditions, the soil covering operation quality is good, the adjustment precision of the field angle and the inclination angle is high, the operation is simple, and the method has universality.

Description

Quantitative adjustable mechanism for opening angle and inclination angle of double-disc soil covering device
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a quantitative adjustable mechanism for an included angle and an inclination angle of a double-disc soil covering device.
Background
The double-disc soil covering device is a common agricultural sowing machine soil contacting part, the main function of the double-disc soil covering device is to carry out soil covering operation on sowed seeds, and the quality of operation is directly related to the emergence of the seeds and the yield of crops. Wherein the opening angle and the inclination angle of the double-disc soil covering device have obvious influence on the soil covering operation quality. At present, the field angle and the inclination angle of the double-disc soil covering device are roughly adjusted by adopting a manual means through a specific adjusting mechanism, and the actual operation values of the field angle and the inclination angle are directly related to the operation precision of an operator. In addition, the wedge-shaped blocks are arranged to set the operation inclination angle and the deflection angle of the double-disc soil covering device, but the device needs to be disassembled and assembled again for adjusting the field angle and the inclination angle every time, and the operation is inconvenient. Therefore, it is required to improve the adjustment accuracy of the opening angle and the inclination angle of the double-disc coverer and to simplify the adjustment procedure thereof.
Disclosure of Invention
The invention aims to provide a mechanism which is used on a seeder and can quantitatively adjust the operation opening angle and the inclination angle of a double-disc soil covering device.
The invention relates to a quantitative adjustable mechanism for an opening angle and an inclination angle of a double-disc soil covering device, which consists of a disc assembly IA, an adjusting shaft assembly IB, a rack C, an adjusting shaft assembly IID, a disc assembly IIE, a bolt I6 and a bolt II 7, wherein the disc assembly IA and the adjusting shaft assembly IB are positioned on the right side of the rack C, and the adjusting shaft assembly IID and the disc assembly IIE are positioned on the left side of the rack C; the disc assembly IA and the disc assembly IIE have the same structure and opposite directions; the adjusting shaft assembly IB and the adjusting shaft assembly IID are identical in structure and opposite in direction; the disc assembly IA, the adjusting shaft assembly IB, the adjusting shaft assembly IID and the disc assembly IIE are symmetrically arranged around the axis of a-a in the center of the rack C; a fixed column I15 in the rack C sequentially penetrates through a hole I26 of a support I4 and a lower hole 24 of a center shaft I3 of an adjusting shaft component IB, and the right end of the fixed column I15 is in threaded connection with a nut I1 of the adjusting shaft component IB; a fixed column II 16 in the rack C sequentially penetrates through a hole II 27 of a support II 5 and an upper hole 25 of a middle shaft I3 of the adjusting shaft assembly IB, and the right end of the fixed column II 16 is in threaded connection with a nut II 2 of the adjusting shaft assembly IB; a central shaft I3 of the adjusting shaft assembly IB is movably connected with a hole III 35 of a cylindrical piece 34 of the clamping piece 29 in the disc assembly IA, and the cylindrical piece 34 is positioned in the middle of the shaft I3; the left end of a bolt I6 is fixedly connected with a threaded hole I14 of a support plate I13 in a rack C, and the right end of the bolt I6 is movably connected with a clamping hole I32 and a clamping hole II 33 of a cylindrical member 34 in a clamping piece 29 of a disc assembly IA; a fixed column IV 22 in the rack C sequentially penetrates through a support III 8 and a lower hole of a middle shaft II 10 of the adjusting shaft assembly IID, and the left end of the fixed column IV 22 is in threaded connection with a nut IV 12 of the adjusting shaft assembly IID; a fixed column III 21 in the rack C sequentially penetrates through upper holes of a support IV 9 and a middle shaft II 10 of an adjusting shaft assembly IID, and the left end of the fixed column III 21 is in threaded connection with a nut III 11 of the adjusting shaft assembly IID; the central shaft II 10 of the adjusting shaft assembly IID is movably connected with a hole IV of a cylindrical piece of a clamping piece in the disc assembly IIE, and the cylindrical piece is positioned in the middle of the shaft II 10; the right end of the bolt II 7 is fixedly connected with a threaded hole II 20 of a support plate II 19 in the rack C, and the left end of the bolt II 7 is movably connected with a clamping hole I and a clamping hole II of a cylindrical piece in the clamping piece of the disc component II E.
The rack C is of a bilaterally symmetrical structure about a central a-a axis, and consists of a support plate I13, a fixing column I15, a fixing column II 16, a side plate I17, a transverse plate 18, a support plate II 19, a fixing column III 21, a fixing column IV 22 and a side plate II 23, wherein the right end of the transverse plate 18 is fixedly connected to the upper side of the front part of the side plate I17, and the left end of the transverse plate 18 is fixedly connected to the upper side of the front part of the side plate II 23; the center of the support plate I13 is provided with a threaded hole I14, the left surface of the support plate I13 is fixedly connected to the right surface of the side plate I17 close to the rear part, the left ends of a fixing column I15 and a fixing column II 16 are fixedly connected to the right surface of the support plate I13, and the fixing column I15 and the fixing column II 16 are respectively positioned in the front lower direction and the rear upper direction of the threaded hole I14; the center of the support plate II 19 is provided with a threaded hole II 20, the right side of the support plate II 19 is fixedly connected to the left side of the rear part of the side plate II 23, the right ends of a fixing column III 21 and a fixing column IV 22 are fixedly connected to the left side of the support plate II 19, and the fixing column III 21 and the fixing column IV 22 are respectively located in the upper rear direction and the lower front direction of the threaded hole II 20.
The disc assembly IA and the disc assembly IIE have the same structure and opposite directions, wherein the disc assembly IA consists of a right soil covering disc assembly F, a clamping piece 29 and a connecting rod 30, the connecting rod 30 is fixedly connected with a shaft III 28 on the right soil covering disc assembly F through a cross rod 37 on the connecting rod, the connecting rod 30 is fixedly connected with the lower end face of a connecting plate 31 on the clamping piece 29 through a vertical rod 36 on the connecting rod, and the side face of the connecting plate 31 is fixedly connected with the cylindrical surface of a cylindrical piece 34; the clamping piece 29 consists of a connecting plate 31 and a cylindrical piece 34, a hole III 35 is formed in the center of the cylindrical piece 34, and a clamping hole I32 and a clamping hole II 33 are formed in the left direction and the right direction of the cylindrical piece 34; the rear end of the connecting plate 31 is fixedly connected with the front side of the cylindrical member 34; the connecting rod 30 consists of a vertical rod 36 and a cross rod 37, and the right end of the cross rod 37 is fixedly connected with the lower end of the vertical rod 36; the right soil covering disc assembly F consists of a soil covering disc 38, a rivet group 39, a bearing cover 40, an elastic retainer ring I41, a deep groove ball bearing 42, a dust ring 43, a shaft III 28, an elastic retainer ring II 44, an end cover 45, a spring washer 46 and a bolt group 47, wherein the right end of the soil covering disc 38 is fixedly connected with the outer ring of the left end of the bearing cover 40 through 5 rivets of the rivet group 39; the spring washer 46 and the end cover 45 are fixedly connected with the inner ring at the left end of the bearing cover 40 through 3 bolts of the bolt group 47; the elastic retainer ring I41, the deep groove ball bearing 42, the end cover 45, the dust ring 43 and the elastic retainer ring II 44 are sequentially sleeved on the right surface of the shaft III 28 from right to left; the right end of a cross rod 37 in the connecting rod 30 is fixedly connected with the left end of a middle shaft III 28 of the right soil covering disc assembly F; the upper end of a vertical rod 36 in the connecting rod 30 is fixedly connected with the lower surface of a connecting plate 31 in the clamping piece 29; the left earth-covering disc assembly G and the right earth-covering disc assembly F of the disc assembly IIE are identical in structure and opposite in direction.
The adjusting shaft assembly IB and the adjusting shaft assembly IID are identical in structure and opposite in direction, the adjusting shaft assembly IB is composed of a nut I1, a nut II 2, a shaft I3, a support column I4 and a support column II 5, an upper hole 25 is formed in the upper portion of the side face of the shaft I3, and a lower hole 24 is formed in the lower portion of the side face of the shaft I3.
The parameter setting in the double-disc covering device opening angle and inclination angle quantitative adjusting mechanism comprises the following steps:
1.1 designing geometric parameters of a quantitative adjustable mechanism for the opening angle and the inclination angle of the double-disc soil covering device: the distance between the right earth covering disc assembly F and the XOZ coordinate plane is l when the left earth covering disc assembly G is parallel to the XOZ coordinate plane1The initial opening angle of the right soil covering disk assembly F and the left soil covering disk assembly G is 2 alpha0(the included angles between the initial states of the right earth covering disc assembly F and the left earth covering disc assembly G and the XOZ plane are both alpha0) The initial inclination angles of the right and left soil covering disk assemblies F and G are 2 beta0(the included angles between the initial states of the right earth covering disk assembly F and the left earth covering disk assembly G and the XOY plane are both beta0)；
The operating parameters are as follows: according to the right hand rule, the rotation angle of the right soil covering disk assembly F around the Z axis is-delta alpha, the rotation angle of the left soil covering disk assembly G around the Z axis is-delta alpha, the rotation angle of the right soil covering disk assembly F around the X axis is-delta beta, and the rotation angle of the left soil covering disk assembly G around the X axis is-delta beta, wherein the delta alpha is more than 0, and the delta beta is more than 0;
1.2 based on the step 1.1, the initial opening angle and the inclination angle are respectively 2 alpha0And 2 beta0Initial coordinate A of any point on plane of right-hour earth covering disc assembly F10(x1,y1,z1)，B10(x2,y2,z2) According to the coordinate three-dimensional transformation rule, pair A10And B10The rotation transformation of the opening angle-delta alpha and the dip angle-delta beta is carried out, and the following steps are carried out:
A1-2＝(x1-2,y1-2,z1-2,1)＝A1*R1*R2,
B1-2＝(x2-2,y2-2,z2-2,1)＝B1*R1*R2,
R1＝T1*R1-1*T1 -1,
Figure GDA0003070434130000021
wherein: a. the10Transformed coordinate A2＝(x1-2,y1-2,z1-2),B10Transformed coordinates B2＝(x2-2,y2-2,z2-2),A1＝[x1,y1,z1，1],B1＝[x2,y2,z2,1],
Figure GDA0003070434130000031
Figure GDA0003070434130000032
T1 -1And
Figure GDA0003070434130000033
are respectively T1And R2-1The transposed matrix of (2);
from the above formula, when1＝140mm，△α＝20°，△β＝15°，α0＝0°，β0When the angle is 0 degree, take A10＝(0,140,50)，B10(-50,140,0), post-transform a2≈(4.4261,152.1605,48.2963)，B2≈(-46.9846,157.1010,0)；
1.3 the shaft center of the shaft I3 is determined as follows:
A10and A2Direction vector of
Figure GDA0003070434130000034
A10And A2Midpoint coordinates of connecting line
Figure GDA0003070434130000035
Then A is10And A2Equation f of perpendicular to the axisASatisfies the following conditions:
Figure GDA0003070434130000036
namely: f. ofA＝4.4261(x-2.2130)+12.1605(x-146.0803)-1.7037(z-49.1481)＝0；
B10And B2Direction vector of
Figure GDA0003070434130000037
B10And B2Midpoint coordinate of the connecting line of
Figure GDA0003070434130000038
Then B is10And B2Equation f of perpendicular to the axisBSatisfies the following conditions:
Figure GDA0003070434130000039
i.e. fB＝3.0154(x+48.4923)+17.1010(y-148.5505)＝0；
Equation of the plane fAAnd plane equation fBVector of the intersecting line
Figure GDA00030704341300000310
Taking a point coordinate N on the intersecting line as (x)N,yN,zN) And r is equal to (0,139.9999,0.0012), the intersection equation l satisfies:
Figure GDA00030704341300000311
namely, it is
Figure GDA00030704341300000312
The intersection equation l is superposed with the axis of the shaft I3 in a coordinate system;
1.4 the clamping member 29 is designed by determining the rotation angle theta of the right earth-covering disk assembly F around the shaft I3, A10And A2Projection coordinate M (x) on straight line lM,yM,zM) Satisfies the following conditions:
Figure GDA0003070434130000041
m is obtained to be approximately equal to (23.6967,135.7707, 31.7438);
the right soil covering disk assembly F rotates around a straight line l to a rotation angle theta with a given change of an opening angle delta alpha and an inclination angle delta beta, and the rotation angle theta satisfies the following conditions:
Figure GDA0003070434130000042
obtaining theta which is approximately equal to 24.9424 degrees, and taking theta as 25 degrees;
1.5 according to the steps 1.2-1.4, the equation of the straight line l' where the axle center of the axle II (10) is located can be determined as follows:
Figure GDA0003070434130000043
the left soil covering disc assembly G rotates around a straight line l' to form a set opening angle delta alpha and a rotation angle with the change of an inclination angle delta beta which are equal to theta and are both 25 degrees;
1.6 under the condition that the axle center of axle I3, the axle center of axle II (10), right earthing disc subassembly F and left earthing disc subassembly G around respective axle center rotation angle theta confirm, design two disc covering device field angle and inclination ration adjustable mechanism and parameter, wherein:
distance l between side plate I17 and side plate II 232130mm, thickness m1The thickness of the support plate I13 is m which is 8mm2Outer circle diameter d of fixed column I15 and fixed column II 16 as 8mm212mm, inner circle diameter d18mm, the height l of the outer circle of the fixed column I15 and the fixed column II 16512mm, inner circle height l of fixed column I15745mm, inner circle height l of fixed column II 166Diameter d of threaded bore I14 of 40mm310mm, the centre of a circle of screw hole I14, fixed column I15 and fixed column II 16 is on a straight line, and this straight line and horizontal direction contained angle sigma be 53, the centre of a circle distance l of fixed column I15 and fixed column II 16336mm, the centre of a circle distance l of screw hole I14 and fixed column II 164＝18mm；
The circle center distance l between the lower hole 24 and the upper hole 25 of the shaft I38＝l336mm, diameter d of lower and upper bores 24 and 254＝(d1+1) mm, outer diameter d of shaft I35The structure of the shaft II 10 and the structure of the shaft I3 are completely the same as 20 mm;
the outer diameters of the strut I4 and the strut II 5 are equal, d7＝d9＝d212mm, diameter d of bore I26 and bore II 276＝d8＝(d1+1)mm；
Structural center O of pillar I41To its bottom by a distance l924.5mm, the radius r of the circle is constructed110mm, structure center O of pillar II 52To its bottom by a distance l10About 21mm, with a circle radius r2＝r1The structure of the support III 8 is completely the same as that of the support I4 which is 10mm,the structure of the strut IV 9 is completely the same as that of the strut II 5;
thickness l of connecting plate 31 of clip member 2914Height l of cylindrical member 34 of 10mm1620mm, the distance l between the upper end face of the web 31 and the upper end face of the cylindrical part 3415Width l of web 31 of 5mm1120mm and the center O of the cylindrical part 343Is located on the horizontal line and bisects l11Connecting plate 31 and center O3Distance l1340mm, outside diameter d of the cylindrical part 3411Diameter d of hole III 35 of 30mm10Diameter d of angle adjusting clamping hole I32 and angle adjusting clamping hole II 33 is 20mm12＝d13＝(d1+1) mm, the central axis of the clamping hole I32 and the centre O of the hole III 353The vertical lines are overlapped, the central axis of the clamping hole II 33 is coincident with the center O of the hole III 353The included angle psi of the perpendicular line is 25 DEG theta, and the point O4Is fixedly connected with the center of the upper end of the vertical rod 36, O4A distance l from the side edge of the connecting plate 311715mm from the center O3The horizontal lines are overlapped;
diameter d of the connecting rod 301410mm, cross bar 37 length l1920mm, length l of the vertical bar 3618Is 227mm, and the included angle tau between the axle center of the cross rod 37 and the axle center of the vertical rod 3611.2 degrees, and the included angle eta between the axle center of the cross rod 37 and the axle center of the vertical rod 36 is 78 degrees;
the distance l from the outer end face of the soil covering disc 38 to the outer end face of the shaft III 2820Is 50 mm.
The invention adjusts the working opening angle and the inclination angle of the double-disc soil covering device to adapt to different working conditions, improves the soil covering quality, has high adjustment precision of the opening angle and the inclination angle, is simple to operate, and has universality.
Drawings
FIG. 1 is a flow chart of a design method of a quantitative adjustable mechanism for the opening angle and the inclination angle of a double-disc soil covering device;
FIG. 2 is a schematic structural diagram of a quantitative adjusting mechanism for the opening angle and the inclination angle of the double-disc coverer;
FIG. 3 is an exploded view of the assembly of the quantitative adjustment mechanism for the opening angle and the inclination angle of the double-disc coverer;
FIG. 4 is a schematic diagram of a design method of a quantitative adjustable mechanism for the opening angle and the inclination angle of a double-disc coverer;
FIG. 5 is a schematic structural view of a frame;
FIG. 6 is a front view of a partial view of the frame;
FIG. 7 is a partial top view of the frame;
FIG. 8 is a schematic structural view of a shaft I;
FIG. 9 is a front view of strut I;
FIG. 10 is a front view of strut II;
FIG. 11 is a schematic structural view of a disc assembly I;
FIG. 12 is a front view of the clip member;
FIG. 13 is a top view of the clip member;
FIG. 14 is a top view of the connecting rod;
FIG. 15 is a side view of the connecting rod;
FIG. 16 is a schematic structural view of a disc assembly II;
FIG. 17 is a cross-sectional view of the right earth-covering disk assembly assembled;
FIG. 18 is a schematic view of the structure of a double-disk coverer before and after the change of the opening angle and the inclination angle;
wherein: A. the device comprises a disc assembly IB, an adjusting shaft assembly IC, a rack D, an adjusting shaft assembly IIE, a disc assembly IIF, a right soil covering disc assembly G, a left soil covering disc assembly 1, a nut I2, a nut II 3, a shaft I4, a support I5, a support II 6, a bolt I7, a bolt II 8, a support III 9, a support IV 10, a shaft II 11, a nut III 12, a nut IV 13, a support I14, a threaded hole I15, a fixed column I16, a fixed column II 17, a side plate I18, a transverse plate II 19, a support II 20, a threaded hole II 21, a fixed column III 22, a fixed column IV 23, a side plate II 24, an upper hole 25, a hole I27, a hole II 28, a shaft III 29, a clamping piece 30, a connecting rod 31, a clamping hole I33, a clamping hole II 34, a cylindrical piece 35, a hole III 36, a vertical rod 37, a cross rod 38, a soil covering disc 39 and a bearing cover 41. The device comprises a circlip I42, a deep groove ball bearing 43, a dust ring 44, a circlip II 45, an end cover 46, a spring washer 47 and a bolt set.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 2 and 3, the quantitative adjustable mechanism for the opening angle and the inclination angle of the double-disc soil covering device comprises a disc assembly IA, an adjusting shaft assembly IB, a rack C, an adjusting shaft assembly IID, a disc assembly IIE, a bolt I6 and a bolt II 7, wherein the disc assembly IA and the adjusting shaft assembly IB are positioned on the right side of the rack C, and the adjusting shaft assembly IID and the disc assembly IIE are positioned on the left side of the rack C; the disc assembly IA and the disc assembly IIE have the same structure and opposite directions; the adjusting shaft assembly IB and the adjusting shaft assembly IID are identical in structure and opposite in direction; the disc assembly IA, the adjusting shaft assembly IB, the adjusting shaft assembly IID and the disc assembly IIE are symmetrically arranged around the axis of a-a in the center of the rack C; a fixed column I15 in the rack C sequentially penetrates through a hole I26 of a support I4 and a lower hole 24 of a center shaft I3 of an adjusting shaft component IB, and the right end of the fixed column I15 is in threaded connection with a nut I1 of the adjusting shaft component IB; a fixed column II 16 in the rack C sequentially penetrates through a hole II 27 of a support II 5 and an upper hole 25 of a middle shaft I3 of the adjusting shaft assembly IB, and the right end of the fixed column II 16 is in threaded connection with a nut II 2 of the adjusting shaft assembly IB; a central shaft I3 of the adjusting shaft assembly IB is movably connected with a hole III 35 of a cylindrical piece 34 of the clamping piece 29 in the disc assembly IA, and the cylindrical piece 34 is positioned in the middle of the shaft I3; the left end of a bolt I6 is fixedly connected with a threaded hole I14 of a support plate I13 in a rack C, and the right end of the bolt I6 is movably connected with a clamping hole I32 and a clamping hole II 33 of a cylindrical member 34 in a clamping piece 29 of a disc assembly IA; a fixed column IV 22 in the rack C sequentially penetrates through a support III 8 and a lower hole of a middle shaft II 10 of the adjusting shaft assembly IID, and the left end of the fixed column IV 22 is in threaded connection with a nut IV 12 of the adjusting shaft assembly IID; a fixed column III 21 in the rack C sequentially penetrates through upper holes of a support IV 9 and a middle shaft II 10 of an adjusting shaft assembly IID, and the left end of the fixed column III 21 is in threaded connection with a nut III 11 of the adjusting shaft assembly IID; the central shaft II 10 of the adjusting shaft assembly IID is movably connected with a hole IV of a cylindrical piece of a clamping piece in the disc assembly IIE, and the cylindrical piece is positioned in the middle of the shaft II 10; the right end of the bolt II 7 is fixedly connected with a threaded hole II 20 of a support plate II 19 in the rack C, and the left end of the bolt II 7 is movably connected with a clamping hole I and a clamping hole II of a cylindrical piece in the clamping piece of the disc component II E.
As shown in fig. 2 to 7, the frame C has a bilateral symmetry structure about a central axis a-a, and is composed of a support plate i 13, a fixing column i 15, a fixing column ii 16, a side plate i 17, a transverse plate 18, a support plate ii 19, a fixing column iii 21, a fixing column iv 22 and a side plate ii 23, wherein the right end of the transverse plate 18 is fixedly connected to the upper side of the front portion of the side plate i 17, and the left end of the transverse plate 18 is fixedly connected to the upper side of the front portion of the side plate ii 23; the center of the support plate I13 is provided with a threaded hole I14, the left surface of the support plate I13 is fixedly connected to the right surface of the side plate I17 close to the rear part, the left ends of a fixing column I15 and a fixing column II 16 are fixedly connected to the right surface of the support plate I13, and the fixing column I15 and the fixing column II 16 are respectively positioned in the front lower direction and the rear upper direction of the threaded hole I14; the center of the support plate II 19 is provided with a threaded hole II 20, the right side of the support plate II 19 is fixedly connected to the left side of the rear part of the side plate II 23, the right ends of a fixing column III 21 and a fixing column IV 22 are fixedly connected to the left side of the support plate II 19, and the fixing column III 21 and the fixing column IV 22 are respectively located in the upper rear direction and the lower front direction of the threaded hole II 20.
As shown in fig. 11 to 16, the disc assembly ia and the disc assembly ie have the same structure and opposite directions, wherein the disc assembly ia is composed of a right earth-covering disc assembly F, a clamping member 29 and a connecting rod 30, the right connecting rod 30 is fixedly connected with a shaft iii 28 on the right earth-covering disc assembly F through a cross rod 37 thereon, the connecting rod 30 is fixedly connected with the lower end face of a connecting plate 31 on the clamping member 29 through a vertical rod 36 thereon, and the side face of the connecting plate 31 is fixedly connected with the cylindrical surface of a cylindrical member 34; the clamping piece 29 consists of a connecting plate 31 and a cylindrical piece 34, a hole III 35 is formed in the center of the cylindrical piece 34, and a clamping hole I32 and a clamping hole II 33 are formed in the left direction and the right direction of the cylindrical piece 34; the rear end of the connecting plate 31 is fixedly connected with the front side of the cylindrical member 34; the connecting rod 30 consists of a vertical rod 36 and a cross rod 37, and the right end of the cross rod 37 is fixedly connected with the lower end of the vertical rod 36; the right soil covering disc assembly F consists of a soil covering disc 38, a rivet group 39, a bearing cover 40, an elastic retainer ring I41, a deep groove ball bearing 42, a dust ring 43, a shaft III 28, an elastic retainer ring II 44, an end cover 45, a spring washer 46 and a bolt group 47, wherein the right end of the soil covering disc 38 is fixedly connected with the outer ring of the left end of the bearing cover 40 through 5 rivets of the rivet group 39; the spring washer 46 and the end cover 45 are fixedly connected with the inner ring at the left end of the bearing cover 40 through 3 bolts of the bolt group 47; the elastic retainer ring I41, the deep groove ball bearing 42, the end cover 45, the dust ring 43 and the elastic retainer ring II 44 are sequentially sleeved on the right surface of the shaft III 28 from right to left; the right end of a cross rod 37 in the connecting rod 30 is fixedly connected with the left end of a middle shaft III 28 of the right soil covering disc assembly F; the upper end of a vertical rod 36 in the connecting rod 30 is fixedly connected with the lower surface of a connecting plate 31 in the clamping piece 29; the left earth-covering disc assembly G and the right earth-covering disc assembly F of the disc assembly IIE are identical in structure and opposite in direction.
As shown in fig. 3 and 8 to 10, the adjusting shaft assembly ib and the adjusting shaft assembly iid have the same structure and opposite directions, and the adjusting shaft assembly ib is composed of a nut i 1, a nut ii 2, a shaft i 3, a support i 4 and a support ii 5, wherein an upper hole 25 is formed in the upper portion of the side surface of the shaft i 3, and a lower hole 24 is formed in the lower portion of the side surface of the shaft i 3.
As shown in fig. 1 to 18, the parameter setting in the quantitative adjustable mechanism for the opening angle and the inclination angle of the double-disc coverer of the invention comprises the following steps:
1.1 designing geometric parameters of a quantitative adjustable mechanism for the opening angle and the inclination angle of the double-disc soil covering device: the distance between the right earth covering disc assembly F and the XOZ coordinate plane is l when the left earth covering disc assembly G is parallel to the XOZ coordinate plane1The initial opening angle of the right soil covering disk assembly F and the left soil covering disk assembly G is 2 alpha0(the included angles between the initial states of the right earth covering disc assembly F and the left earth covering disc assembly G and the XOZ plane are both alpha0) The initial inclination angles of the right and left soil covering disk assemblies F and G are 2 beta0(the included angles between the initial states of the right earth covering disk assembly F and the left earth covering disk assembly G and the XOY plane are both beta0)；
The operating parameters are as follows: according to the right hand rule, the rotation angle of the right soil covering disk assembly F around the Z axis is-delta alpha, the rotation angle of the left soil covering disk assembly G around the Z axis is-delta alpha, the rotation angle of the right soil covering disk assembly F around the X axis is-delta beta, and the rotation angle of the left soil covering disk assembly G around the X axis is-delta beta, wherein the delta alpha is more than 0, and the delta beta is more than 0;
1.2 based on the step 1.1, the initial opening angle and the inclination angle are respectively 2 alpha0And 2 beta0Initial coordinate A of any point on plane of right-hour earth covering disc assembly F10(x1,y1,z1)，B10(x2,y2,z2) According to the coordinate three-dimensional transformation rule, pair A10And B10The rotation transformation of the opening angle-delta alpha and the dip angle-delta beta is carried out, and the following steps are carried out:
A1-2＝(x1-2,y1-2,z1-2,1)＝A1*R1*R2,
B1-2＝(x2-2,y2-2,z2-2,1)＝B1*R1*R2,
R1＝T1*R1-1*T1 -1,
Figure GDA0003070434130000071
wherein: a. the10Transformed coordinate A2＝(x1-2,y1-2,z1-2),B10Transformed coordinates B2＝(x2-2,y2-2,z2-2),A1＝[x1,y1,z1，1],B1＝[x2,y2,z2,1],
Figure GDA0003070434130000072
Figure GDA0003070434130000073
T1 -1And
Figure GDA0003070434130000074
are respectively T1And R2-1The transposed matrix of (2);
from the above formula, when1＝140mm，△α＝20°，△β＝15°，α0＝0°，β0When the angle is 0 degree, take A10＝(0,140,50)，B10(-50,140,0), post-transform a2≈(4.4261,152.1605,48.2963)，B2≈(-46.9846,157.1010,0)；
1.3 the shaft center of the shaft I3 is determined as follows:
A10and A2Direction vector of
Figure GDA0003070434130000081
A10And A2Midpoint coordinates of connecting line
Figure GDA0003070434130000082
Then A is10And A2Equation f of perpendicular to the axisASatisfies the following conditions:
Figure GDA0003070434130000083
namely: f. ofA＝4.4261(x-2.2130)+12.1605(x-146.0803)-1.7037(z-49.1481)＝0；
B10And B2Direction vector of
Figure GDA0003070434130000084
B10And B2Midpoint coordinate of the connecting line of
Figure GDA0003070434130000085
Then B is10And B2Equation f of perpendicular to the axisBSatisfies the following conditions:
Figure GDA0003070434130000086
i.e. fB＝3.0154(x+48.4923)+17.1010(y-148.5505)＝0；
Equation of the plane fAAnd plane equation fBVector of the intersecting line
Figure GDA0003070434130000087
Taking a point coordinate N on the intersecting line as (x)N,yN,zN) And r is equal to (0,139.9999,0.0012), the intersection equation l satisfies:
Figure GDA0003070434130000088
namely, it is
Figure GDA0003070434130000089
The intersection equation l is superposed with the axis of the shaft I3 in a coordinate system;
1.4 the clamping member 29 is designed by determining the rotation angle theta of the right earth-covering disk assembly F around the shaft I3, A10And A2Projection coordinate M (x) on straight line lM,yM,zM) Satisfies the following conditions:
Figure GDA00030704341300000810
m is obtained to be approximately equal to (23.6967,135.7707, 31.7438);
the right soil covering disk assembly F rotates around a straight line l to a rotation angle theta with a given change of an opening angle delta alpha and an inclination angle delta beta, and the rotation angle theta satisfies the following conditions:
Figure GDA00030704341300000811
obtaining theta which is approximately equal to 24.9424 degrees, and taking theta as 25 degrees;
1.5 according to the steps 1.2-1.4, the equation of the straight line l' where the axle center of the axle II (10) is located can be determined as follows:
Figure GDA0003070434130000091
the left soil covering disc assembly G rotates around a straight line l' to form a set opening angle delta alpha and a rotation angle with the change of an inclination angle delta beta which are equal to theta and are both 25 degrees;
1.6 under the condition that the axle center of axle I3, the axle center of axle II (10), right earthing disc subassembly F and left earthing disc subassembly G around respective axle center rotation angle theta confirm, design two disc covering device field angle and inclination ration adjustable mechanism and parameter, wherein:
distance l between side plate I17 and side plate II 232130mm, thickness m1The thickness of the support plate I13 is m which is 8mm28mm, fixed column I15 and fixed column II 16Diameter d of circle212mm, inner circle diameter d18mm, the height l of the outer circle of the fixed column I15 and the fixed column II 16512mm, inner circle height l of fixed column I15745mm, inner circle height l of fixed column II 166Diameter d of threaded bore I14 of 40mm310mm, the centre of a circle of screw hole I14, fixed column I15 and fixed column II 16 is on a straight line, and this straight line and horizontal direction contained angle sigma be 53, the centre of a circle distance l of fixed column I15 and fixed column II 16336mm, the centre of a circle distance l of screw hole I14 and fixed column II 164＝18mm；
The circle center distance l between the lower hole 24 and the upper hole 25 of the shaft I38＝l336mm, diameter d of lower and upper bores 24 and 254＝(d1+1) mm, outer diameter d of shaft I35The structure of the shaft II 10 and the structure of the shaft I3 are completely the same as 20 mm;
the outer diameters of the strut I4 and the strut II 5 are equal, d7＝d9＝d212mm, diameter d of bore I26 and bore II 276＝d8＝(d1+1)mm；
Structural center O of pillar I41To its bottom by a distance l924.5mm, the radius r of the circle is constructed110mm, structure center O of pillar II 52To its bottom by a distance l10About 21mm, with a circle radius r2＝r1The structure of the strut III 8 is completely the same as that of the strut I4, and the structure of the strut IV 9 is completely the same as that of the strut II 5 when the strut is 10 mm;
the nut I1, the nut II 2, the strut I4, the strut II 5, the support plate I13, the fixed column I15 and the fixed column II 16 can enable the axis of the shaft I3 to be superposed and fixed with the calculated intersection line equation l, and the shaft II 10 is the same;
thickness l of connecting plate 31 of clip member 2914Height l of cylindrical member 34 of 10mm1620mm, the distance l between the upper end face of the web 31 and the upper end face of the cylindrical part 3415Width l of web 31 of 5mm1120mm and the center O of the cylindrical part 343Is located on the horizontal line and bisects l11Connecting plate 31 and center O3Distance l1340mm, outside diameter d of the cylindrical part 3411＝30mm，Diameter d of hole III 3510Diameter d of angle adjusting clamping hole I32 and angle adjusting clamping hole II 33 is 20mm12＝d13＝(d1+1) mm, the central axis of the clamping hole I32 and the centre O of the hole III 353The vertical lines are overlapped, the central axis of the clamping hole II 33 is coincident with the center O of the hole III 353An included angle psi of the perpendicular line is 25 degrees, the clamping hole I32 and the clamping hole II 33 are determined through the position relation of the bolt I6 and the clamping piece 29 after the hole III 35 rotates by an angle theta around the axis of the shaft I3 under the condition that the space of the shaft I3 is fixed, and the determination method of the two clamping holes of the left soil covering disc assembly is the same, namely the point O4Is fixedly connected with the center of the upper end of the vertical rod 36, O4A distance l from the side edge of the connecting plate 311715mm from the center O3The horizontal lines are coincident and the fixed connection point O4The position of (A) is to ensure certain fixing strength;
diameter d of the connecting rod 301410mm, cross bar 37 length l1920mm, length l of the vertical bar 3618Is 227mm, and the included angle tau between the axle center of the cross rod 37 and the axle center of the vertical rod 3611.2 degrees, the included angle eta between the axle center of the cross rod 37 and the axle center of the vertical rod 36 is 78 degrees, and the shape of the connecting rod 30 can ensure that the disc assembly IA meets the requirement on the spatial coordinate position of the disc in the calculation process;
the distance l from the outer end face of the soil covering disc 38 to the outer end face of the shaft III 2820Is 50 mm.

Claims (1)

1. The utility model provides a two disc shroud-dozer opening angle and inclination ration adjustable mechanism which characterized in that: the disc adjusting mechanism is composed of a disc assembly I (A), an adjusting shaft assembly I (B), a rack (C), an adjusting shaft assembly II (D), a disc assembly II (E), a bolt I (6) and a bolt II (7), wherein the disc assembly I (A) and the adjusting shaft assembly I (B) are positioned on the right side of the rack (C), and the adjusting shaft assembly II (D) and the disc assembly II (E) are positioned on the left side of the rack (C); the disc assembly I (A) and the disc assembly II (E) have the same structure and opposite directions; the adjusting shaft component I (B) and the adjusting shaft component II (D) have the same structure and opposite directions; the disc assembly I (A), the adjusting shaft assembly I (B), the adjusting shaft assembly II (D) and the disc assembly II (E) are symmetrically arranged about the axis a-a in the center of the rack (C); a fixed column I (15) in the rack (C) sequentially penetrates through a hole I (26) of a support I (4) and a lower hole (24) of a middle shaft I (3) of an adjusting shaft component I (B), and the right end of the fixed column I (15) is in threaded connection with a nut I (1) of the adjusting shaft component I (B); a fixed column II (16) in the rack (C) sequentially penetrates through a hole II (27) of a support II (5) and an upper hole (25) of a middle shaft I (3) of the adjusting shaft component I (B), and the right end of the fixed column II (16) is in threaded connection with a nut II (2) of the adjusting shaft component I (B); a middle shaft I (3) of the adjusting shaft assembly I (B) is movably connected with a hole III (35) of a cylindrical piece (34) of a clamping piece (29) in the disc assembly I (A), and the cylindrical piece (34) is positioned in the middle of the shaft I (3); the left end of a bolt I (6) is fixedly connected with a threaded hole I (14) of a support plate I (13) in a rack (C), and the right end of the bolt I (6) is movably connected with a clamping hole I (32) and a clamping hole II (33) of a cylindrical piece (34) in a clamping piece (29) of a disc assembly I (A); a fixed column IV (22) in the rack (C) sequentially penetrates through a lower hole of a middle shaft II (10) of the support III (8) and the adjusting shaft assembly II (D), and the left end of the fixed column IV (22) is in threaded connection with a nut IV (12) of the adjusting shaft assembly II (D); a fixed column III (21) in the rack (C) sequentially penetrates through upper holes of a middle shaft II (10) of the support IV (9) and the adjusting shaft assembly II (D), and the left end of the fixed column III (21) is in threaded connection with a nut III (11) of the adjusting shaft assembly II (D); a middle shaft II (10) of the adjusting shaft assembly II (D) is movably connected with a hole IV of a cylindrical piece of a clamping piece in the disc assembly II (E), and the cylindrical piece is positioned in the middle of the shaft II (10); the right end of a bolt II (7) is fixedly connected with a threaded hole II (20) of a support plate II (19) in the rack (C), and the left end of the bolt II (7) is movably connected with a clamping hole I and a clamping hole II of a cylindrical part in a clamping part of a disc component II (E);
the machine frame (C) is of a bilateral symmetry structure about a center axis a-a, and consists of a support plate I (13), a fixing column I (15), a fixing column II (16), a side plate I (17), a transverse plate (18), a support plate II (19), a fixing column III (21), a fixing column IV (22) and a side plate II (23), wherein the right end of the transverse plate (18) is fixedly connected to the upper side of the side plate I (17) close to the front part, and the left end of the transverse plate (18) is fixedly connected to the upper side of the side plate II (23) close to the front part; a threaded hole I (14) is formed in the center of the support plate I (13), the left side of the support plate I (13) is fixedly connected to the right side, close to the rear part, of the side plate I (17), the left ends of a fixing column I (15) and a fixing column II (16) are fixedly connected to the right side of the support plate I (13), and the fixing column I (15) and the fixing column II (16) are respectively located in the front-lower direction and the rear-upper direction of the threaded hole I (14); a threaded hole II (20) is formed in the center of the support plate II (19), the right side of the support plate II (19) is fixedly connected to the left side, close to the rear part, of the side plate II (23), the right ends of a fixing column III (21) and a fixing column IV (22) are fixedly connected to the left side of the support plate II (19), and the fixing column III (21) and the fixing column IV (22) are respectively located in the rear upper direction and the front lower direction of the threaded hole II (20);
the disc assembly I (A) is the same as the disc assembly II (E) in structure and opposite in direction, wherein the disc assembly I (A) consists of a right soil covering disc assembly (F), a clamping piece (29) and a connecting rod (30), the connecting rod (30) is fixedly connected with a shaft III (28) on the right soil covering disc assembly (F) through a cross rod (37) on the connecting rod, the connecting rod (30) is fixedly connected with the lower end face of a connecting plate (31) on the clamping piece (29) through a vertical rod (36) on the connecting rod, and the side face of the connecting plate (31) is fixedly connected with the cylindrical surface of a cylindrical piece (34); the clamping piece (29) consists of a connecting plate (31) and a cylindrical piece (34), a hole III (35) is formed in the center of the cylindrical piece (34), and a clamping hole I (32) and a clamping hole II (33) are formed in the left direction and the right direction of the cylindrical piece (34); the rear end of the connecting plate (31) is fixedly connected to the front side of the cylindrical member (34); the connecting rod (30) consists of a vertical rod (36) and a cross rod (37), and the right end of the cross rod (37) is fixedly connected with the lower end of the vertical rod (36); the right soil covering disc assembly (F) consists of a soil covering disc (38), a rivet group (39), a bearing cover (40), an elastic check ring I (41), a deep groove ball bearing (42), a dust ring (43), a shaft III (28), an elastic check ring II (44), an end cover (45), a spring washer (46) and a bolt group (47), wherein the right end of the soil covering disc (38) is fixedly connected with the outer ring of the left end of the bearing cover (40) through 5 rivets of the rivet group (39); the spring washer (46) and the end cover (45) are fixedly connected with the inner ring at the left end of the bearing cover (40) through 3 bolts of the bolt group (47); the elastic retainer ring I (41), the deep groove ball bearing (42), the end cover (45), the dust ring (43) and the elastic retainer ring II (44) are sequentially sleeved on the right surface of the shaft III (28) from right to left; the right end of a middle cross rod (37) of the connecting rod (30) is fixedly connected with the left end of a middle shaft III (28) of the right soil covering disc assembly (F); the upper end of a vertical rod (36) in the connecting rod (30) is fixedly connected with the lower surface of a connecting plate (31) in the clamping piece (29); the left soil covering disc assembly (G) and the right soil covering disc assembly (F) of the disc assembly II (E) are identical in structure and opposite in direction;
the adjusting shaft assembly I (B) and the adjusting shaft assembly II (D) are identical in structure and opposite in direction, the adjusting shaft assembly I (B) is composed of a nut I (1), a nut II (2), a shaft I (3), a support column I (4) and a support column II (5), an upper hole (25) is formed in the upper portion of the side face of the shaft I (3), and a lower hole (24) is formed in the lower portion of the side face of the shaft I (3);
the parameter setting comprises the following steps:
1.1 designing geometric parameters of a quantitative adjustable mechanism for the opening angle and the inclination angle of the double-disc soil covering device: the distance between the right earth covering disc component (F) and the XOZ coordinate plane is l when the left earth covering disc component (G) is parallel to the XOZ coordinate plane1The initial opening angle of the right soil covering disk assembly (F) and the left soil covering disk assembly (G) is 2 alpha0(the included angles between the initial states of the right earth covering disc assembly (F) and the left earth covering disc assembly (G) and the XOZ plane are both alpha0) The initial inclination angles of the right and left soil covering disk assemblies (F, G) are 2 beta0(the included angles between the initial states of the right earth covering disc assembly (F) and the left earth covering disc assembly (G) and the XOY plane are both beta0)；
The operating parameters are as follows: according to the right hand rule, the rotation angle of the right soil covering disk assembly (F) around the Z axis is-delta alpha, the rotation angle of the left soil covering disk assembly (G) around the Z axis is-delta alpha, the rotation angle of the right soil covering disk assembly (F) around the X axis is-delta beta, the rotation angle of the left soil covering disk assembly (G) around the X axis is-delta beta, wherein the delta alpha is more than 0, and the delta beta is more than 0;
1.2 based on the step 1.1, the initial opening angle and the inclination angle are respectively 2 alpha0And 2 beta0Initial coordinate A of any point on the plane of the right earth covering disc component (F)10(x1,y1,z1)，B10(x2,y2,z2) According to the coordinate three-dimensional transformation rule, pair A10And B10The rotation transformation of the opening angle-delta alpha and the dip angle-delta beta is carried out, and the following steps are carried out:
A1-2＝(x1-2,y1-2,z1-2,1)＝A1*R1*R2,
B1-2＝(x2-2,y2-2,z2-2,1)＝B1*R1*R2,
R1＝T1*R1-1*T1 -1,
Figure FDA0003070434120000024
wherein: a. the10Transformed coordinate A2＝(x1-2,y1-2,z1-2),B10Transformed coordinates B2＝(x2-2,y2-2,z2-2),A1＝[x1,y1,z1，1],B1＝[x2,y2,z2,1],
Figure FDA0003070434120000021
Figure FDA0003070434120000022
T1 -1And
Figure FDA0003070434120000023
are respectively T1And R2-1The transposed matrix of (2);
from the above formula, when1＝140mm，△α＝20°，△β＝15°，α0＝0°，β0When the angle is 0 degree, take A10＝(0,140,50)，B10(-50,140,0), post-transform a2≈(4.4261,152.1605,48.2963)，B2≈(-46.9846,157.1010,0)；
1.3 the shaft center of the shaft I (3) is determined as follows:
A10and A2Direction vector of
Figure FDA0003070434120000031
A10And A2Midpoint coordinates of connecting line
Figure FDA0003070434120000032
Then A is10And A2Equation f of perpendicular to the axisASatisfies the following conditions:
Figure FDA0003070434120000033
namely: f. ofA＝4.4261(x-2.2130)+12.1605(x-146.0803)-1.7037(z-49.1481)＝0；
B10And B2Direction vector of
Figure FDA0003070434120000034
B10And B2Midpoint coordinate of the connecting line of
Figure FDA0003070434120000035
Then B is10And B2Equation f of perpendicular to the axisBSatisfies the following conditions:
Figure FDA0003070434120000036
i.e. fB＝3.0154(x+48.4923)+17.1010(y-148.5505)＝0；
Equation of the plane fAAnd plane equation fBVector of the intersecting line
Figure FDA0003070434120000037
Taking a point coordinate N on the intersecting line as (x)N,yN,zN) And r is equal to (0,139.9999,0.0012), the intersection equation l satisfies:
Figure FDA0003070434120000038
namely, it is
Figure FDA0003070434120000039
The intersection equation l is superposed with the axis of the axis I (3) in a coordinate system;
1.4 the clamping piece (29) is wound around a shaft by determining a right covering disk assembly (F)I (3) is designed after a rotation angle theta, A10And A2Projection coordinate M (x) on straight line lM,yM,zM) Satisfies the following conditions:
Figure FDA00030704341200000310
m is obtained to be approximately equal to (23.6967,135.7707, 31.7438);
the rotation angle theta of the right soil covering disk assembly (F) rotating around the straight line l to change a given opening angle delta alpha and a given inclination angle delta beta satisfies the following conditions:
Figure FDA00030704341200000311
obtaining theta which is approximately equal to 24.9424 degrees, and taking theta as 25 degrees;
1.5 according to the steps 1.2-1.4, the equation of the straight line l' where the axle center of the axle II (10) is located can be determined as follows:
Figure FDA00030704341200000312
the left soil covering disc assembly (G) rotates around a straight line l' to form a set opening angle delta alpha and a rotation angle with a change of an inclination angle delta beta which are equal to theta and are both 25 degrees;
1.6 under the condition that the axle center of axle I (3), the axle center of axle II (10), right earthing disc subassembly (F) and left earthing disc subassembly (G) are confirmed around respective axle center rotation angle theta, cover native ware opening angle of two discs and inclination ration adjustable mechanism and parameter design, wherein:
distance l between side plate I (17) and side plate II (23)2130mm, thickness m1The thickness of the support plate I (13) is m which is 8mm2Outer circle diameter d of fixed column I (15) and fixed column II (16) of 8mm212mm, inner circle diameter d18mm, the height l of the outer circle of the fixed column I (15) and the fixed column II (16)512mm, inner circle height l of fixed column I (15)745mm, inner circle height l of fixed column II (16)6Diameter d of threaded hole I (14) of 40mm310mm, a threaded hole I (14),The centers of circles of the fixed column I (15) and the fixed column II (16) are on the same straight line, an included angle sigma between the straight line and the horizontal direction is 53 degrees, and the distance l between the centers of circles of the fixed column I (15) and the fixed column II (16) is equal to the distance l336mm, the centre of a circle distance l of screw hole I (14) and fixed column II (16)4＝18mm；
The circle center distance l between the lower hole (24) and the upper hole (25) of the shaft I (3)8＝l336mm, diameter d of the lower hole (24) and the upper hole (25)4＝(d1+1) mm, outer diameter d of shaft I (3)5The structure of the shaft II (10) and the structure of the shaft I (3) are completely the same as 20 mm;
the outer diameters of the strut I (4) and the strut II (5) are equal, d7＝d9＝d212mm, diameter d of holes I (26) and II (27)6＝d8＝(d1+1)mm；
Structural center O of pillar I (4)1To its bottom by a distance l924.5mm, the radius r of the circle is constructed110mm, structural center O of pillar II (5)2To its bottom by a distance l10About 21mm, with a circle radius r2＝r1The structure of the strut III (8) is completely the same as that of the strut I (4), and the structure of the strut IV (9) is completely the same as that of the strut II (5) when the strut is 10 mm;
thickness l of connecting plate (31) of clamping piece (29)1410mm, height l of the cylinder (34)16The distance l between the upper end surface of the connecting plate (31) and the upper end surface of the cylindrical member (34) is 20mm15Width l of the web (31) of 5mm1120mm and the center O of the cylindrical member (34)3Is located on the horizontal line and bisects l11A connecting plate (31) and a circle center O3Distance l1340mm, outer diameter d of the cylindrical member (34)11Diameter d of hole III (35) 30mm1020mm, the diameter d of the angle adjustment clamping hole I (32) and the angle adjustment clamping hole II (33)12＝d13＝(d1+1) mm, the central axis of the clamping hole I (32) and the centre O of the hole III (35)3The vertical lines are overlapped, the central axis of the clamping hole II (33) is coincident with the center O of the hole III (35)3The included angle psi of the perpendicular line is 25 DEG theta, and the point O4Is fixedly connected with the center of the upper end of the vertical rod (36) and is O4A distance l from the side edge of the connecting plate (31)1715mm from the center O3The horizontal lines are overlapped;
diameter d of the connecting rod (30)1410mm, length l of the cross bar (37)19Is 20mm, the length l of the vertical rod (36)18Is 227mm, and the included angle tau between the axle center of the cross rod (37) and the axle center of the vertical rod (36)11.2 degrees, and the included angle eta between the axle center of the cross rod (37) and the axle center of the vertical rod (36) is 78 degrees;
the distance l from the outer end face of the soil covering disc (38) to the outer end face of the shaft III (28)20Is 50 mm.
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CN105794360B (en) * 2016-05-06 2018-03-30 新疆农垦科学院 One kind trench digging covering device
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