Automatic straw baling device

Abstract

The present invention discloses an automatic straw bale wrapping device, which relates to the technical field of agricultural equipment. It comprises: a base, connected to the straw bale outlet of the straw baling equipment; a discharge piece, fixedly connected to the base; a plurality of support wheels, arranged around the discharge piece, and respectively rotatably connected to a plurality of third support pieces; a second transmission wheel, arranged at the discharge port, and contact-supported by the plurality of support wheels; a hydraulic motor, connected to the base, and the hydraulic motor drives the first transmission wheel to rotate; a winding mechanism, which wraps the straw bale; a cutting mechanism, which cuts the net belt; and a distance measuring mechanism, which is arranged on one side of the discharge piece, and measures the push-out length of the straw bale. The present invention can automatically complete the straw bale wrapping work instead of manual labor, thereby reducing labor costs, reducing the operating costs of straw recycling, and avoiding harm to the human body caused by bagging operations.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural equipment, and in particular to an automatic straw baling and wrapping device. Background Art

[0002] Feeding is one of the important ways to recycle and utilize straw at present, and its characteristics are high economic benefits and good processing effects. However, the main recycling equipment on the market cannot achieve good soil and debris removal, and the crushing and kneading of straw does not meet the feed standard. The straw recycling equipment for feed is mainly manual bagging and baling equipment. The operators of this type of equipment have high work intensity and poor working environment, and also have high requirements for the proficiency of related operations. The above conditions limit the promotion and application of this type of equipment. Normal operation of this type of equipment requires a tractor driver and an equipment operator. The operator must not only observe the operation of the equipment at any time, but also complete the bagging work at the same time. The operator's working environment is dusty, noisy, and has high work intensity, which poses a great hazard to human health. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic straw baling wrapping device, which automatically completes the straw baling work instead of manual work, reduces labor costs, reduces the operating cost of straw recycling, and avoids harm to the human body caused by bagging operations.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic straw baling and wrapping device, comprising: a base connected to the straw baling outlet of the straw baling equipment;

[0005] A discharge member, provided with a feed inlet, a discharge outlet and an inner cavity, fixedly connected to the base, the baled straw enters from the feed inlet and exits from the discharge outlet through the inner cavity;

[0006] A plurality of support wheels are arranged around the discharging member and are rotatably connected to a plurality of third support members respectively, and each of the third support members is fixedly connected to the base;

[0007] A second transmission wheel is arranged at the discharge port, is contacted and supported by a plurality of the support wheels, and is transmission-connected with the first transmission wheel, and the center of the second transmission wheel coincides with the center of the discharge piece;

[0008] A hydraulic motor is connected to the base, and an output portion of the hydraulic motor is connected to the first transmission wheel to drive the first transmission wheel to rotate;

[0009] The winding mechanism comprises a mesh belt roller and a spring, wherein the mesh belt roller rotates around the center of the discharge piece, and the spring keeps the mesh belt on the mesh belt roller in a taut state at all times;

[0010] A shearing mechanism is arranged on one side of the discharge piece, and includes a blade and a fourth connecting piece. The fourth connecting piece is provided with a fixing portion, the blade is connected to the fixing portion, and the fourth connecting piece is connected to the discharge piece; the shearing mechanism also includes a first hydraulic cylinder, the first hydraulic cylinder is arranged parallel to the discharge piece, the first hydraulic cylinder is connected to the fourth connecting piece, the piston rod head of the first hydraulic cylinder is connected to the fifth connecting piece, and when the piston rod of the first hydraulic cylinder contracts, the mesh belt wrapped around the piston rod head is cut off by the blade; the shearing mechanism also includes a clamping piece, and when the piston rod of the first hydraulic cylinder contracts, the clamping piece and the fifth connecting piece together clamp the cut mesh belt head on the mesh belt roller side.

[0011] The distance measuring mechanism is arranged on one side of the discharging member to measure the pushing length of the straw bale.

[0012] In some embodiments of the present application, the shearing mechanism is further provided with two serrated plates, one side of each of the serrated plates is fixedly connected to a fifth connecting member and is located on the upper and lower sides of the blade and is parallel to the blade, and a serrated convex-concave portion is provided on the suspended side of the serrated plate, and the serrated convex-concave portion is arranged facing the blade of the blade.

[0013] In some embodiments of the present application, the shearing mechanism is also provided with a first sleeve, which is arranged parallel to the first hydraulic cylinder and slidably sleeved on the outside of the fourth shaft, the fourth shaft is connected to the third connecting piece, one end of the first sleeve is fixedly connected to the clamping piece, and the other end of the first sleeve is in contact with and connected to a second spring, and the second spring is sleeved on the outside of the fourth shaft.

[0014] In some embodiments of the present application, the shearing mechanism is also provided with a guide shaft, which is slidably connected to a fourth connecting piece, and one end of the guide shaft is connected to a fifth connecting piece. The first hydraulic cylinder drives the guide shaft to reciprocate, and the other end of the guide shaft is a free end and is provided with a sensing part. The first proximity switch and the second proximity switch are respectively provided at the two extreme positions of the reciprocating motion of the sensing part.

[0015] In some embodiments of the present application, the winding mechanism is further provided with a core shaft with one end suspended and arranged in front of the second transmission wheel along the discharge direction, the fixed end of the core shaft is connected to the first fixing piece, the first fixing piece is connected to the second transmission wheel, a rotating sleeve is sleeved on the outside of the core shaft, the mainspring is connected between the core shaft and the rotating sleeve and sleeved on the core shaft, two second fixing pieces are sleeved facing each other on the outside of the rotating sleeve, the second fixing piece is a truncated cone shape, one end face of the second fixing piece close to the mainspring side is in contact and connected with the outer convex table surface of the rotating sleeve, the mesh belt roller is sleeved on the conical surfaces of the two second fixing pieces and is axially fixed by the two second fixing pieces, and a third spring is also sleeved on the outside of the rotating sleeve, one end of the third spring is in contact and connected with a nut connected to the outside of the rotating sleeve, and the other end of the third spring is in contact and connected with one end face of the second fixing piece away from the mainspring side.

[0016] In some embodiments of the present application, an axial elastic retaining ring is respectively provided at both ends of the rotating sleeve for axially positioning the rotating sleeve, and the two axial elastic retaining rings are installed on the core shaft.

[0017] In some embodiments of the present application, the distance measuring mechanism includes a first connecting member, one end of which is suspended and sleeved with a first shaft, the first shaft is rotatably connected to a distance measuring wheel, a photoelectric proximity switch is provided above the distance measuring wheel, and the photoelectric proximity switch is connected to the first connecting member; the other end of the first connecting member is rotatably sleeved with a third shaft, the two ends of the third shaft are respectively fixedly connected to a second support member, and the second support member is fixedly connected to the discharge member; a second shaft is sleeved at the end of the first connecting member near the third shaft, the second shaft is connected to a first spring, and the other end of the first spring is connected to the second support member.

[0018] In some embodiments of the present application, the outer ring of the measuring wheel is provided with a circle of serrated convex and concave portions, the discharge piece is provided with a notch portion along the discharge direction, the convex and concave portion extends into the inner cavity of the discharge piece through the notch portion of the discharge piece, and the measuring wheel is also evenly provided with a plurality of alternating solid portions and hollow portions along the radial direction.

[0019] In some embodiments of the present application, an automatic straw baling and wrapping device is provided, which also includes a fourth support member, which is horizontally arranged in front of the winding mechanism and facing the discharge port; and also includes a second hydraulic cylinder, the tail of the second hydraulic cylinder is rotatably connected to a seventh shaft, the seventh shaft is connected to the base, the head of the piston rod of the second hydraulic cylinder is rotatably connected to a sixth shaft, the sixth shaft is connected to a seventh connecting member, the seventh connecting member is connected to a second sleeve, a fifth shaft is sleeved in the second sleeve, the fifth shaft is connected to the base, the bottom of the fourth support member is connected to the outside of the second sleeve, and the contraction of the piston rod of the second hydraulic cylinder drives the fourth support member to rotate around the fifth axis.

[0020] In some embodiments of the present application, a straw baling automatic wrapping device is provided, which also includes a sixth connecting member, the sixth connecting member is connected to the base, the sixth connecting member is provided with a third proximity switch, and the third proximity switch is arranged opposite to the seventh connecting member.

[0021] The beneficial effects of adopting the above technical solution are:

[0022] 1. The present invention has a simple mechanical structure and is easy to install. The whole device can be connected to the discharge port of the straw baler through a base, and can be assembled and used with most manual bagging equipment on the market to realize the transformation of straw baling equipment.

[0023] 2. The shearing mechanism of the present invention is provided with a clamping member. When the blade cuts the mesh belt, the mesh belt head on the mesh belt roller is clamped together by the clamping member and the fifth connecting member, providing the mesh belt with a pre-tightening force for the next wrapping action, thereby ensuring the strength and quality of the mesh belt head when it starts to wrap;

[0024] 3. The winding mechanism of the present invention is provided with a spring. When the mesh belt begins to be pulled out, the mesh belt drives the mesh belt roller to rotate and at the same time, the spring is tightened. When the spring force becomes larger and larger and exceeds the friction between the mesh belt roller and the first fixing member and the second fixing member, the mesh belt roller rotates around the first fixing member and the second fixing member, and the friction force provides a pre-tightening force for the mesh belt winding; when the mesh belt is relaxed, the originally tightened spring will cause the mesh belt roller to rotate in the opposite direction, so that the mesh belt is in a taut state again, thereby ensuring the winding quality of the mesh belt.

[0025] 4. The distance measuring machine of the present invention is provided with a distance measuring wheel with a serrated outer ring. During the process of discharging the straw bales, the serrations of the distance measuring wheel penetrate into the straw bale, driving the distance measuring wheel to rotate. The distance measuring wheel is provided with hollow parts and solid parts arranged alternately. The photoelectric proximity switch detects the discharging length of the straw bale by detecting the hollow parts and the solid parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the piston rod of the first hydraulic cylinder in the shearing mechanism of the present invention when it is extended;

[0028] Figure 3 It is a schematic diagram of the mechanism when the piston rod of the first hydraulic cylinder in the shearing mechanism of the present invention is shortened;

[0029] Figure 4 It is a schematic cross-sectional structure diagram of the winding mechanism of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the distance measuring mechanism of the present invention;

[0031] Figure 6 is a schematic diagram of the connection structure between the fourth support member and the second hydraulic cylinder of the present invention;

[0032] In the figure: 1, first transmission wheel; 2, hydraulic motor; 3, tension wheel; 4, first support member; 5, distance measuring mechanism, 501, second support member, 502, first connecting member, 503, first shaft, 504, photoelectric proximity switch, 505, distance measuring wheel, 506, first spring, 507, second shaft, 508, third shaft; 6, third support member; 7, notch; 8, discharge member; 9, support wheel; 10, base; 11, shearing mechanism, 1101, blade, 1102, fixing part, 1103, sensing part, 1104, first proximity switch, 1105, second connecting member, 1106, second proximity switch, 1107, first hydraulic cylinder, 1108, fourth shaft, 1109, second spring, 111 0. The third connecting member, 1111. The fourth connecting member, 1112. The first sleeve, 1113. The pressing member, 1114. The fifth connecting member, 1115. The serrated plate, 1116. The guide shaft; 12. The second transmission wheel; 13. The winding mechanism, 1301. The first fixing member, 1302. The spring, 1303. The rotating sleeve, 1304. The second fixing member, 1305. The mesh belt roller, 1306. The third spring, 1307. The nut, 1308. The core shaft, 1309. The elastic retaining ring for the shaft; 14. The fifth shaft; 15. The fourth supporting member; 16. The second sleeve; 17. The sixth connecting member; 18. The third proximity switch; 19. The second hydraulic cylinder; 20. The seventh connecting member; 21. The sixth shaft; 22. The seventh shaft. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] like Figure 1 As shown, an automatic straw baling and wrapping device comprises: a base 10 connected to the straw baling outlet of the straw baling equipment;

[0035] The discharge member 8 is provided with a feed inlet, a discharge outlet and an inner cavity, and is fixedly connected to the base 10. The baled straw enters from the feed inlet and exits from the discharge outlet through the inner cavity.

[0036] Four support wheels 9 are arranged at four corners around the discharging member 8 and are rotatably connected to a plurality of third support members 6 respectively, and each third support member 6 is fixedly connected to the base 10;

[0037] The second transmission wheel 12 is arranged at the discharge port, supported by four support wheels 9, and connected to the first transmission wheel 1 in transmission. The center of the second transmission wheel 12 coincides with the center of the discharge piece 8. A circle of grooves is provided on the surface of the support wheel 9, and the inner side of the second transmission wheel 12 is just stuck in the groove of the support wheel 9. When the second transmission wheel 12 rotates, the support wheel 9 also rotates.

[0038] The hydraulic motor 2 is connected to the base 10. The output of the hydraulic motor 2 is connected to the first transmission wheel 1 and drives the first transmission wheel 1 to rotate. The first transmission wheel 1 drives the second transmission wheel 12 to rotate through the chain. The base 10 is also connected to the first support member 4. The first support member 4 is rotatably connected to the tensioning wheel 3. The first support member 4 is provided with a long notch. One end of the rotating shaft of the tensioning wheel 3 passes through the long notch and is fixed to the first support member 4 with a nut 1307. The tensioning wheel 3 can move along the long notch to adjust the tightness of the chain.

[0039] like Figure 4As shown, the winding mechanism 13 is provided with a core shaft 1308 with one end suspended and arranged in front of the second transmission wheel 12 along the discharge direction. The fixed end of the core shaft 1308 is connected to the first fixing member 1301, and the first fixing member 1301 is connected to one end surface of the second transmission wheel 12. A rotating sleeve 1303 is provided on the outer side of the core shaft 1308, and the rotating sleeve 1303 can rotate around the core shaft 1308. The mainspring 1302 is connected between the core shaft 1308 and the rotating sleeve 1303 and is sleeved on the core shaft 1308. A second truncated cone-shaped fixing member 1304 is sleeved on the outside of the rotating sleeve 1303 facing each other. One end face of the second fixing member 1304 is in contact and connected with the outer boss of the rotating sleeve 1303. The mesh belt roller 1305 is sleeved on the conical surfaces of the two second fixing members 1304 and is axially fixed by the two second fixing members 1304. A third spring 1306 is also sleeved on the outside of the rotating sleeve 1303. One end of the third spring 1306 is in contact and connected with a nut 1307 connected to the outside of the rotating sleeve 1303, and the other end of the third spring 1306 is in contact and connected with one end face of the third fixing member. The third spring 1306 axially fixes the mesh belt roller 1305 on the rotating sleeve 1303. The nut 1307 is screwed on the rotating sleeve 1303 to press the third spring 1306, and the third spring 1306 presses the outer second fixing member 1304. The conical surfaces of the two second fixing members 1304 axially fix the mesh belt roller 1305. The pressure of the third spring 1306 can be adjusted by adjusting the position of the nut 1307.

[0040] An axial elastic retaining ring 1309 is respectively provided at both ends of the rotating sleeve 1303 for axial positioning of the rotating sleeve 1303 , and the two axial elastic retaining rings 1309 are installed on the core shaft 1308 .

[0041] like Figure 2 and Figure 3As shown, the shearing mechanism 11 is arranged on one side of the discharge piece 8, and includes a blade 1101 and a fourth connecting piece 1111. The fourth connecting piece 1111 is provided with a fixing portion 1102, the blade 1101 is connected to the fixing portion 1102, and the fourth connecting piece 1111 is connected to the discharge piece 8; the shearing mechanism 11 also includes a first hydraulic cylinder 1107, the first hydraulic cylinder 1107 is arranged parallel to the discharge piece 8, and the first hydraulic cylinder 1107 is connected to the fourth connecting piece 1111; the piston rod head of the first hydraulic cylinder 1107 is connected to the fifth connecting piece 1114, and the fifth connecting piece 1114 moves with the piston rod; the shearing mechanism 11 is also provided with two serrated plates 1115, one side of the two serrated plates 1115 is fixedly connected to the fifth connecting piece 1114 and is located on the upper and lower sides of the blade 1101 and is parallel to the blade 1101, and the suspended side of the serrated plate 1115 is provided with a serrated concave-convex portion, and the serrated concave-convex portion is arranged facing the blade of the blade 1101. When the piston rod of the first hydraulic cylinder 1107 is retracted, the sawtooth plate 1115 is just above and below the blade 1101 to sandwich the blade 1101, and the mesh belt wrapped around the sawtooth plate 1115 is cut by the blade 1101; the shearing mechanism 11 also includes a clamping member 1113, and when the piston rod of the first hydraulic cylinder 1107 is retracted, the clamping member 1113 and the fifth connecting member 1114 clamp the cut mesh belt head on the side of the mesh belt roller 1305. The clamping member 1113 is connected to the first sleeve 1112, and the first sleeve 1112 is arranged parallel to the first hydraulic cylinder 1107 and is slidably sleeved outside the fourth shaft 1108. The fourth shaft 1108 is connected to the third connecting member 1110, and the first sleeve 1112 is slidably connected to the third connecting member 1110, and the third connecting member 1110 guides the first sleeve 1112. The other end of the first sleeve 1112 contacts and connects the second spring 1109, and the second spring 1109 is sleeved outside the fourth shaft 1108. When the piston rod of the first hydraulic cylinder 1107 contracts, the fifth connecting member 1114 is driven to move back until it is close to the pressing member 1113, and the second spring 1109 is compressed to provide a pressing force for the mesh belt.

[0042] The shearing mechanism 11 is also provided with a guide shaft 1116, which is slidably connected to the fourth connecting member 1111, and the fourth connecting member 1111 provides a guiding function for the guide shaft 1116. One end of the guide shaft 1116 is connected to the fifth connecting member 1114, and the piston rod of the first hydraulic cylinder 1107 is extended and retracted, driving the fifth connecting member 1114 and the guide shaft 1116 to reciprocate. The other end of the guide shaft 1116 is a free end and is provided with a sensing part 1103, and the sensing part 1103 is sleeved outside the guide shaft 1116. The sensing part 1103 reciprocates with the piston rod of the first hydraulic cylinder 1107, and the first proximity switch 1104 and the second proximity switch 1106 are respectively provided at the two extreme positions of the reciprocating motion, so that the two proximity switches can detect the position of the piston rod of the first hydraulic cylinder 1107. Both proximity switches are connected to the second connecting member 1105, and the second connecting member 1105 is fixedly connected to the discharge member 8.

[0043] like Figure 5 As shown, the distance measuring mechanism 5 is arranged on one side of the discharge member 8 to measure the pushing length of the straw bale. The distance measuring mechanism 5 includes a first connecting member 502, one end of which is suspended and sleeved with a first shaft 503, the first shaft 503 is rotatably connected to a distance measuring wheel 505, a photoelectric proximity switch 504 is arranged above the distance measuring wheel 505, and the photoelectric proximity switch 504 is connected to the first connecting member 502; the other end of the first connecting member 502 is rotatably sleeved with a third shaft 508, the two ends of the third shaft 508 are respectively fixedly connected to the second support member 501, and the second support member 501 is fixedly connected to the discharge member 8; a second shaft 507 is sleeved at the end of the first connecting member 502 near the third shaft 508, the second shaft 507 is connected to a first spring 506, and the other end of the first spring 506 is connected to the second support member 501. The first spring 506 pulls the first connecting member 502 outwards to provide pressure for the distance measuring wheel 505 to move inwards, so that the distance measuring wheel 505 always rotates closely to the straw bale during the movement of the straw bale without slipping.

[0044] The outer ring of the distance measuring wheel 505 is provided with a circle of sawtooth-shaped concave and convex parts, and the discharge member 8 is provided with a notch part 7 along the discharge direction. The concave and convex parts extend into the inner cavity of the discharge member 8 through the notch part 7 of the discharge member 8, and the concave and convex parts are stuck into the straw bale and rotate with the movement of the straw bale. The distance measuring wheel 505 is also evenly provided with a plurality of alternating solid parts and hollow parts along the radial direction. The photoelectric proximity switch 504 detects the solid part and the hollow part of the distance measuring wheel 505, so as to detect the moving distance of the straw bale.

[0045] like Figure 6As shown, the present invention further includes a fourth support member 15, which is horizontally arranged in front of the winding mechanism 13 and directly facing the discharge port; and further includes a second hydraulic cylinder 19, the tail of the second hydraulic cylinder 19 is rotatably connected to the seventh shaft 22, the seventh shaft 22 is connected to the base 10, the piston rod head of the second hydraulic cylinder 19 is rotatably connected to the sixth shaft 21, the sixth shaft 21 is connected to the seventh connecting member 20, the seventh connecting member 20 is connected to the second sleeve 16, the second sleeve 16 is sleeved with the fifth shaft 14, the fifth shaft 14 is connected to the base 10, the bottom of the fourth support member 15 is connected to the outside of the second sleeve 16, and the piston rod of the second hydraulic cylinder 19 contracts to drive the fourth support member 15 to rotate around the fifth shaft 14. When the fourth support member 15 rotates downward, the straw bale placed on it falls automatically. In order to detect the falling of the straw bale, the present invention further provides a sixth connecting member 17, the sixth connecting member 17 is connected to the base 10, and the sixth connecting member 17 is provided with a third proximity switch 18, and the third proximity switch 18 is arranged directly opposite to the seventh connecting member 20. When the piston rod of the second hydraulic cylinder 19 contracts, the fourth support member 15 rotates and falls, and the seventh connecting member 20 moves away from the third proximity switch 18. When the piston rod of the second hydraulic cylinder 19 extends, the fourth support member 15 rotates and rises, and the seventh connecting member 20 approaches the third proximity switch 18.

[0046] The working process of the present invention is as follows: the straw bale is slowly pushed out of the discharge piece 8 by the straw baling device. During the pushing process, the saw teeth of the distance measuring wheel 505 pass through the notch 7 on the discharge piece 8 and pierce the straw bale. The movement of the straw bale drives the distance measuring wheel 505 to rotate. The proximity photoelectric switch calculates the moving distance of the straw bale by sensing the hollow part and the solid part on the distance measuring wheel 505. When the straw bale protrudes out of the outlet of the discharge piece 8, the hydraulic motor 2 is started to drive the first transmission wheel 1 to rotate, the first transmission wheel 1 drives the second transmission wheel 12 to rotate, and the second transmission wheel 12 drives the core shaft 1308 to rotate around the center of the discharge piece 8, and the straw bale begins to be wrapped. At this time, the piston rod of the first hydraulic cylinder 1107 is in a contracted state, the mesh belt head on the mesh belt roller 1305 is clamped by the pressing member 1113 and the fifth connecting member 1114, and the second spring 1109 is compressed to provide a pressing force for the pressing member 1113. At the beginning, when the mesh belt is pulled out, the friction between the mesh belt roller 1305 and the second fixing member 1304 is greater than the force of the spring 1302, and the mesh belt drives the mesh belt roller 1305, the second fixing member 1304 and the rotating sleeve 1303 to rotate together. The spring 1302 is installed between the rotating sleeve 1303 and the core shaft 1308. As the rotating sleeve 1303 rotates, the spring 1302 is continuously tightened. When the force of the spring 1302 becomes greater and greater than the friction between the mesh belt roller 1305 and the second fixing member 1304, the mesh belt roller 1305 begins to rotate around the second fixing member 1304. When the straw is wrapped, the hydraulic motor 2 stops rotating, the second transmission wheel 12 stops rotating, and the mesh belt becomes loose due to inertia. The originally tightened spring 1302 drives the rotating sleeve 1303 and the mesh belt roller 1305 on the rotating sleeve 1303 to rotate in the opposite direction, so that the mesh belt is in a taut state again. When the hydraulic motor 2 stops rotating after the straw bale wrapping is completed, the piston rod of the first hydraulic cylinder 1107 extends, driving the fifth connecting piece 1114 to move to the tail of the straw bale wrapping. The hydraulic motor 2 starts to drive the mesh belt roller 1305 to rotate one circle and then stops. The mesh belt wraps around the two serrated plates 1115 connected to the fifth connecting piece 1114 and the piston rod head of the first hydraulic cylinder 1107. Then the piston rod of the first hydraulic cylinder 1107 contracts, driving the mesh belt to move toward the blade 1101. When the mesh belt is cut off by the blade 1101, the fifth connecting piece 1114 and the pressing piece 1113 have clamped the mesh belt on the side of the mesh belt roller 1305, providing pre-tightening force for the next wrapping of the mesh belt. After the mesh belt is cut off, the piston rod of the second hydraulic cylinder 19 contracts, driving the second sleeve 16 to rotate around the fifth axis 14, and the second sleeve 16 drives the fourth support member 15 to rotate, so that the straw bale on the fourth support member 15 falls. At this point, the wrapping work of a straw bale is completed.

[0047] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A straw baling automatic wrapping device, characterized in that: include: A base, connected to a straw baling outlet of the straw baling equipment; A discharge member, provided with a feed inlet, a discharge outlet and an inner cavity, fixedly connected to the base, the baled straw enters from the feed inlet and exits from the discharge outlet through the inner cavity; A plurality of support wheels are arranged around the discharging member and are rotatably connected to a plurality of third support members respectively, and each of the third support members is fixedly connected to the base; A hydraulic motor is connected to the base, and an output portion of the hydraulic motor is connected to the first transmission wheel to drive the first transmission wheel to rotate; A second transmission wheel is arranged at the discharge port, is contacted and supported by a plurality of the support wheels, and is transmission-connected with the first transmission wheel, and the center of the second transmission wheel coincides with the center of the discharge piece; The winding mechanism comprises a mesh belt roller and a spring, wherein the mesh belt roller rotates around the center of the discharge piece, and the spring keeps the mesh belt on the mesh belt roller in a taut state at all times; The shearing mechanism is arranged on one side of the discharge member, and comprises a blade and a fourth connecting member, wherein the fourth connecting member is provided with a fixing portion, the blade is connected to the fixing portion, and the fourth connecting member is connected to the discharge member; the shearing mechanism also comprises a first hydraulic cylinder, which is arranged parallel to the discharge member, the first hydraulic cylinder is connected to the fourth connecting member, the piston rod head of the first hydraulic cylinder is connected to the fifth connecting member, and when the piston rod of the first hydraulic cylinder is contracted, the mesh belt wound around the piston rod head is cut off by the blade; the shearing mechanism also comprises a pressing member, and when the piston rod of the first hydraulic cylinder is contracted, the pressing member and the fifth connecting member together clamp the cut mesh belt head on the mesh belt roller side; The shearing mechanism is further provided with two sawtooth plates, one side of each of the sawtooth plates is fixedly connected to the fifth connecting member and is located at the upper and lower sides of the blade and is parallel to the blade, and a sawtooth-shaped concave-convex portion is provided on the suspended side of the sawtooth plate, and the sawtooth-shaped concave-convex portion is arranged facing the blade of the blade; A distance measuring mechanism is arranged on one side of the discharging member to measure the pushing length of the straw bale; The distance measuring mechanism includes a first connecting member, one end of which is suspended and sleeved with a first shaft, the first shaft is rotatably connected to a distance measuring wheel, a photoelectric proximity switch is provided above the distance measuring wheel, and the photoelectric proximity switch is connected to the first connecting member; the other end of the first connecting member is rotatably sleeved with a third shaft, the two ends of the third shaft are respectively fixedly connected to a second support member, and the second support member is fixedly connected to the discharge member; a second shaft is sleeved at the end of the first connecting member near the third shaft, the second shaft is connected to a first spring, and the other end of the first spring is connected to the second support member.

2. The automatic straw baling device according to claim 1, characterized in that: The shearing mechanism is also provided with a first sleeve, which is arranged parallel to the first hydraulic cylinder and slidably sleeved on the outside of the fourth shaft, the fourth shaft is slidably connected to the third connecting piece, one end of the first sleeve is fixedly connected to the clamping piece, and the other end of the first sleeve is in contact with and connected to a second spring, and the second spring is sleeved on the outside of the fourth shaft.

3. The automatic straw baling device according to claim 1, characterized in that: The shearing mechanism is also provided with a guide shaft, which is slidably connected to the fourth connecting piece, and one end of the guide shaft is connected to the fifth connecting piece. The first hydraulic cylinder drives the guide shaft to reciprocate, and the other end of the guide shaft is a free end and is provided with a sensing part. The first proximity switch and the second proximity switch are respectively provided at the two extreme positions of the reciprocating motion of the sensing part.

4. The automatic straw baling device according to claim 1, characterized in that: The winding mechanism is also provided with a core shaft with one end suspended and arranged in front of the second transmission wheel along the discharge direction, the fixed end of the core shaft is connected to the first fixing piece, the first fixing piece is connected to the second transmission wheel, a rotating sleeve is sleeved on the outside of the core shaft, the mainspring is connected between the core shaft and the rotating sleeve and sleeved on the core shaft, two second fixing pieces are sleeved facing each other on the outside of the rotating sleeve, the second fixing piece is a truncated cone shape, one end face of the second fixing piece close to the mainspring side is in contact and connected with the outer convex table surface of the rotating sleeve, the mesh belt roller is sleeved on the conical surfaces of the two second fixing pieces and is axially fixed by the two second fixing pieces, and a third spring is also sleeved on the outside of the rotating sleeve, one end of the third spring is in contact and connected with a nut connected to the outside of the rotating sleeve, and the other end of the third spring is in contact and connected with one end face of the second fixing piece away from the mainspring side.

5. The automatic straw baling device according to claim 4, characterized in that: An axial elastic retaining ring is respectively provided at both ends of the rotating sleeve to axially position the rotating sleeve, and the two axial elastic retaining rings are installed on the core shaft.

6. The automatic straw baling device according to claim 5, characterized in that: The outer ring of the distance measuring wheel is provided with a circle of sawtooth-shaped concave and convex parts, the discharge piece is provided with a notch part along the discharge direction, the concave and convex part extends into the inner cavity of the discharge piece through the notch part of the discharge piece, and the distance measuring wheel is also evenly provided with a plurality of alternating solid parts and hollow parts along the radial direction.

7. The automatic straw baling device according to claim 1, characterized in that: It also includes a fourth support member, which is horizontally arranged in front of the winding mechanism and facing the discharge port; it also includes a second hydraulic cylinder, the tail of the second hydraulic cylinder is rotatably connected to the seventh axis, the seventh axis is connected to the base, the head of the piston rod of the second hydraulic cylinder is rotatably connected to the sixth axis, the sixth axis is connected to the seventh connecting member, the seventh connecting member is connected to the second sleeve, the second sleeve is sleeved with a fifth axis, the fifth axis is connected to the base, the bottom of the fourth support member is connected to the outside of the second sleeve, and the contraction of the piston rod of the second hydraulic cylinder drives the fourth support member to rotate around the fifth axis.

8. The automatic straw baling device according to claim 7, characterized in that: It also includes a sixth connecting member, the sixth connecting member is connected to the base, the sixth connecting member is provided with a third proximity switch, and the third proximity switch is arranged opposite to the seventh connecting member.

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