Small square bale double-bale-outlet picking and baling machine

Abstract

The invention discloses a small square bale double-bale-outlet picking and baling machine which comprises a machine frame, a conveying and feeding device, a driving device, a gear box, a compressing and cutting device, a baling chamber and a baling needle device, and the conveying and feeding device, the driving device, the gear box, the compressing and cutting device, the baling chamber and the baling needle device are arranged on the machine frame. A vertical moving cutter is further arranged in the middle of the rear end face of the compressing and cutting-off device, a vertical fixed cutter device and a bale separating plate located behind the vertical fixed cutter device are further arranged on the inner side of the bale pressing chamber, and when the compressing and cutting-off device is controlled to do reciprocating motion, the vertical moving cutter on the compressing and cutting-off device and the vertical fixed cutter device in the bale pressing chamber form a shearing effect. The device is used for horizontally and vertically cutting pasture or crop straw synchronously, and bundling and compressing the cut pasture or crop straw into square bundles. When forage grass or crop straw is harvested, the combined operation such as picking, conveying, feeding, compressing, bundle separating and bundling can be completed, two straw bundles can be output at a time, one large straw bundle can also be output, and the straw bundle density and the operation efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a small square grass bale double-outlet picking and baling machine. Background Art

[0002] Small square bale picking and baling machines complete the combined operations of picking up, conveying, feeding, compressing, and baling cut and dried forage grass, crop straw and other crops in the field. At present, domestic small square bale picking and baling machines can produce one bale at a time when harvesting forage grass or crop straw, so the bale density is not high and the operation efficiency is not high. Summary of the invention

[0003] In order to solve the problems of single baling and low efficiency of baling operation in existing agricultural machinery picking and baling machines, the present invention provides a small square grass bale double-bale picking and baling machine.

[0004] The technical solutions adopted are as follows:

[0005] A small square straw bale double-outlet picking-up baler comprises a frame and a conveying and feeding device, a driving device, a gear box, a compression and cutting device, a baling chamber and a baling needle device arranged on the frame, wherein the conveying and feeding device is arranged near the inlet end of the baling chamber, the driving device and the gear box are arranged at the front end of the baling chamber, the baling needle device is located at the rear lower part of the frame, a cutting device guide rail for limiting the left and right positions of the compression and cutting device is arranged on the frame, the compression and cutting device is slidably arranged between the baling chamber and the gear box along the cutting device guide rail, and the output shaft of the gear box is connected to the baling chamber. The crank connection of the compression and cutting device is used to control the reciprocating movement of the compression and cutting device. A row of horizontal moving knives is provided on the lower side of the rear end surface of the compression and cutting device, and a vertical moving knife is also provided in the middle position of the rear end surface of the compression and cutting device. A vertical fixed knife device and a baling plate located behind the vertical fixed knife device are also provided inside the baling chamber. When the compression and cutting device is controlled to make reciprocating motion, the vertical moving knife on the compression and cutting device and the vertical fixed knife device in the baling chamber form a shearing effect, which is used to synchronously cut pasture grass or crop straw horizontally and vertically, and compress the cut pasture grass or crop straw into square bales.

[0006] Preferably, the vertical knife device comprises a vertical knife and a vertical knife seat plate, the vertical knife seat plate is fixedly connected to the frame, and the vertical knife is fixedly connected to the vertical knife seat plate.

[0007] Furthermore, the inner side of the baling chamber is also provided with a horizontally arranged vertical moving knife track device fixedly connected to the frame, and the vertical moving knife track device is arranged above the compression and cutting device, which includes a vertical moving knife track arranged along the moving direction of the compression and cutting device, and a vertical moving knife track seat plate fixedly connected to the frame, and the vertical moving knife track seat plate is vertically arranged to the vertical moving knife track. When the compression and cutting device is controlled to reciprocate, the vertical moving knife reciprocates along the vertical moving knife track.

[0008] Furthermore, the compression and cutting device also includes a connecting rod and a compression and cutting welded body, the two ends of the connecting rod are respectively connected to the crank and the compression and cutting welded body through spherical roller bearings, the two side surfaces of the compression and cutting welded body are respectively provided with upper rollers and lower rollers, and the frames corresponding to the upper rollers and lower rollers are respectively provided with corresponding upper cutting device guide rails and lower cutting device guide rails, and the horizontal moving knife and the vertical moving knife are arranged on the compression and cutting welded body.

[0009] Preferably, the conveying and feeding device includes a connecting tube, a rocker, a left crank, a right crank and a plurality of feeding forks, the left crank and the right crank are fixedly connected to the two ends of the connecting tube respectively, and the feeding forks are fixed on the connecting tube at intervals; the rocker includes a first rocker and a second rocker, one end of the first rocker is connected to one end of the second rocker through a bearing, the other end of the first rocker is fixedly connected to one end of the connecting tube and is located on the inner side of one crank thereof, the other end of the second rocker is drivingly connected to the power output by the driving device to form a crank rocker mechanism, and the feeding fork is in a herringbone shape.

[0010] Preferably, the feeding fork comprises a detachable feeding fork and a welded feeding fork, the detachable feeding fork is arranged close to the remote control rod, and comprises a feeding fork seat and a herringbone fork, the feeding fork seat and the welded feeding fork are respectively welded and fixed to the connecting pipe, and the herringbone fork is fixedly connected to the feeding fork seat by a fixing member.

[0011] Furthermore, a density adjustment device is provided at the rear of the baling chamber, which includes a lower crossbeam, an upper crossbeam, a crank screw and a density adjustment mechanism. The lower crossbeam is fixed to the bottom end of the baling chamber and extends out on both sides thereof. The upper crossbeam is arranged at the top end of the baling chamber and extends out on both sides thereof. The density adjustment mechanism is respectively fixed on the lower crossbeam extending out on both sides of the baling chamber. The density adjustment mechanism is a spring-type adjustment mechanism. The crank screw passes through both ends of the upper crossbeam and is connected to the upper end of the density adjustment mechanism.

[0012] Furthermore, the density adjustment mechanism includes an upper pull-up seat, a lower pull-down seat and two pressure springs arranged in parallel between the upper pull-up seat and the lower pull-down seat, the upper and lower ends of the two pressure springs are respectively fixedly connected to the upper pull-up seat and the lower pull-down seat, and the middle part of the upper pull-up seat is also provided with an adjusting nut that is rotatably connected thereto, the adjusting nut is connected to the lower end of the crank screw, and the lower pull-down seat is fixedly connected to the end of the lower cross beam.

[0013] Preferably, the rotating shaft of the adjusting nut is arranged perpendicular to the reciprocating motion direction of the compression and cutting device.

[0014] Furthermore, the pick-up baler also includes a needle protection device, which includes a first tie rod, a threaded rod and a second tie rod connected in sequence, the two ends of the threaded rod are respectively connected to the first tie rod and the second tie rod, the free end of the first tie rod is provided with a joint bearing, the free end of the second tie rod is formed with a long slot hole, the joint bearing is fixed to a cam through a rotating shaft, the cam is installed at one end of the output shaft of the driving device, one end of the needle device is arranged in the long slot hole through the needle bearing, so that it slides along the long slot hole, and the other end can swing around the hinge point of the frame within a fixed angle.

[0015] The technical solution of the present invention has the following advantages:

[0016] A. The present invention arranges a fixed knife in the compression and cutting device of the picking baler, and arranges a fixed knife device and a baling plate which form a shearing effect with the fixed knife inside the baling chamber. When harvesting forage grass or crop straw, the combined operations of picking up, conveying, feeding, compressing, baling and baling can be completed. Two bales or one large bale can be produced at a time, thereby improving the bale density and operation efficiency.

[0017] B. The present invention also provides a density adjustment device at the rear end of the baling chamber that can adaptively adjust the square bale forming density. The device can rotate according to the direction of the pulling force received by the adjusting nut, thereby making the baling forming pressure more uniform and the bale density consistent.

[0018] C. The present invention also provides a needle protection device, which effectively prevents the needle device from being broken by the compression and cutting device when the motion relationship among the needle protection device, the driving device, the compression and cutting device, the rope knotting device and the needle device changes, and can timely pull the needle device out of the baling room through the needle protection device to protect the needle device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A front view of the pick-up baler provided by the present invention;

[0021] Figure 2 for Figure 1 A top view of the structure shown;

[0022] Figure 3 for Figure 1 A rear view of the structure shown;

[0023] Figure 4 for Figure 2 A cross-sectional view of

[0024] Figure 5 for Figure 1 Left side view of the structure shown;

[0025] Figure 6 for Figure 2 Schematic diagram of the conveying and feeding device;

[0026] Figure 7 It is a schematic diagram of the detachable fork structure;

[0027] Figure 8 It is a schematic diagram of the feeding fork (II);

[0028] Fig. 9 It is a schematic diagram of the compression and cutting device;

[0029] Fig.10 It is a schematic diagram of the vertical moving knife track device;

[0030] Fig.11 It is a schematic diagram of the vertical knife device;

[0031] Fig.12 This is a schematic diagram of a baling needle protection device;

[0032] Fig.13 This is a schematic diagram of the bundling principle of the present invention;

[0033] Fig.14 This is a schematic diagram of the density adjustment device provided by the present invention.

[0034] The symbols provided in the figure are explained as follows:

[0035] 1-Rack

[0036] 2-Conveying and feeding device

[0037] 21-Connecting pipe

[0038] 22- Joystick

[0039] 221-first rocker, 222-second rocker, 223-bearing

[0040] 23-Left crank

[0041] 24-Right crank

[0042] 25-Feeding fork

[0043] 251-Removable feeding fork, 2511-Feeding fork seat, 2512-Herringbone fork

[0044] 252-Welding Feed Fork

[0045] 3-Gearbox

[0046] 4-Compression cutting device

[0047] 41-crank, 42-horizontal moving knife, 43-vertical moving knife, 44-connecting rod

[0048] 45-compression cut welded body, 46-spherical roller bearing, 47-upper roller, 48-lower roller

[0049] 49-Side roller

[0050] 5- Baling room

[0051] 6- Needle device

[0052] 7- Cutting device guide rail

[0053] 71-upper cutting device guide rail, 72-lower cutting device guide rail

[0054] 8-Standing knife device

[0055] 81-fixed knife, 82-fixed knife seat plate

[0056] 9-Vertical moving knife track device

[0057] 91-vertical moving knife track, 92-vertical moving knife track seat plate

[0058] 10-Density adjustment device

[0059] 101-lower beam, 102-upper beam, 103-crank screw

[0060] 104-Density adjustment mechanism

[0061] 1041-pull-up seat, 1042-pull-down seat, 1043-pressure spring, 1044-adjusting nut

[0062] 20-Needle protection device

[0063] 201-first tie rod, 202-threaded rod, 203-second tie rod, 204-spherical bearing

[0064] 203a-Long slot hole

[0065] 30-cam; 40-baler needle bearing; 50-baler plate; 60-drive shaft; 70-flywheel; 80-drive device; 90-baler box; 100-baler knotting device, 110-baler length adjustment device

[0066] 120-bundle placing device; 130-traction frame; 140-traction frame lifting device; 150-pickup lifting device; 160-pickup; 170-travel system; 180-bearing with seat; 190-external spherical bearing

[0067] 200-right screw conveyor; 210-left screw conveyor; 220-single grass blade; 230-double grass blade. DETAILED DESCRIPTION

[0068] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] like Figures 1 to 4As shown, the present invention provides a small square bale double-outlet picking and baling machine, which can complete the combined operations of picking, conveying, feeding, compressing, baling and baling of cut and dried pasture grass, crop straw and other crops in the field; it includes a frame 1 and a conveying and feeding device 2, a gear box 3, a compression and cutting device 4, a baling chamber 5, and a baling needle device 6 arranged on the frame 1, and the bracket is also provided with a transmission shaft 60, a flywheel 70, a driving device 80, a rope box 90, a rope knotting device 100, a bale length adjustment device 110, a bale placing device 120, a traction frame 130, a picker 160, a walking system 170, a left screw conveyor 210 and a right screw conveyor 200. The traction frame 130 is also provided with a traction frame lifting device 140 for adjusting the lifting thereof, and the picker 160 is provided with a picker lifting device 150 for adjusting the lifting thereof. The traction frame 130 is located at the front end of the frame 1 and is connected and fixed to the frame 1. The traction frame lifting device 140 is connected and fixed to the side of the traction frame 130. The picker 160 is located at the front and lower part of the frame 1 and can float up and down around the frame 1. The picker lifting device 150 is located on the left side of the picker 160 and is respectively connected and fixed to the picker 160 and the frame 1. The left screw conveyor 210 is located at the left rear end of the picker 160 and is hinged to the left side of the frame 1. The right screw conveyor 200 is located at the right rear end of the picker 160 and is hinged to the right side of the frame 1. The conveying feeding device 2 is located behind the left screw conveyor 210 and the right screw conveyor 200.

[0070] The driving device 80 is located at the front left side of the frame 1, with the inner end connected to the compression and cutting device 4 and the outer end connected to the baling needle protection device 7. The flywheel 2 is located in front of the gear box 3, and the rear end is connected to the input shaft of the gear box 3. The transmission shaft 60 is located in front of the flywheel 70, with one end connected to the flywheel 70 and the other end connected to the tractor output shaft. The rope knotting device 100 is located at the upper middle part of the frame 1 and is hinged to the frame 1. The bale length adjustment device 110 is located at the upper rear part of the frame 1, behind the rope knotting device 100, and is fixedly connected to the baling chamber 5. The walking system 170 is located at the lower middle part of the frame 1, behind the picker 160, and is fixedly connected to the frame 1. The rope box 90 is located on both sides of the middle part of the frame 1, and is fixedly connected to the frame 1. The bale placing device 120 is located at the tail of the baling chamber 5 and is fixedly connected to the baling chamber 5.

[0071] The conveying and feeding device 2 is arranged near the inlet end of the baling chamber 5, the gear box 3 is arranged at the front end of the baling chamber 5, and is connected to the driving device 80. The baling needle device 6 is located at the rear lower part of the frame 1. The frame 1 is provided with a cutting device guide rail 7 for limiting the left and right position of the compression and cutting device 4. The compression and cutting device 4 is slidably arranged between the baling chamber 5 and the gear box 3 along the cutting device guide rail 7, and the output shaft of the gear box 3 is connected to the crank 41 of the compression and cutting device 4, which is used to control the compression and cutting device 4 to move back and forth. Fig. 9As shown, a row of horizontal moving knives 42 are provided at the lower side of the rear end surface of the compression and cutting device 4, and a vertical moving knife 43 is also provided at the middle position of the rear end surface of the compression and cutting device 4. Figure 4 and Fig.13 As shown, a fixed knife device 8 and a baling plate 50 located behind the fixed knife device 8 are also provided on the inner side of the baling chamber 5. When the compression and cutting device 4 is controlled to make reciprocating motion, the movable knife 43 on the compression and cutting device 4 forms a shearing effect with the fixed knife device 8 in the baling chamber 5, which is used to synchronously cut the grass or crop straw horizontally and vertically, and compress the cut grass or crop straw into square bales.

[0072] The structure of the vertical knife device 8 is as follows: Fig.11 As shown, the vertical knife device 8 includes a vertical knife 81 and a vertical knife seat plate 82. The vertical knife seat plate 82 is fixedly connected to the frame 1. The vertical knife 81 and the vertical knife seat plate 82 are fixedly connected by riveting or bolts.

[0073] like Fig.10 and Fig.13 As shown, in order to make the vertical moving knife 43 move along the set route better, the inner side of the baling chamber 5 is also provided with a horizontally arranged vertical moving knife track device 9 fixedly connected to the frame 1. The vertical moving knife track device 9 is arranged above the compression and cutting device 4, and includes a vertical moving knife track 91 arranged along the moving direction of the compression and cutting device 4, and a vertical moving knife track seat plate 92 fixedly connected to the frame 1. The vertical moving knife track seat plate 92 is arranged vertically with the vertical moving knife track 91. The present invention sets two vertical moving knife track seat plates 92 in front and behind. When the compression and cutting device 4 is controlled to reciprocate, the vertical moving knife 43 reciprocates along the vertical moving knife track 91. Fig. 9 As shown, the compression and cutting device 4 further includes a connecting rod 44 and a compression and cutting welded body 45. The two ends of the connecting rod 44 are respectively connected to the crank 41 and the compression and cutting welded body 45 through a self-aligning roller bearing 46. The two sides of the compression and cutting welded body 45 are respectively provided with an upper roller 47 and a lower roller 48. Figure 4 As shown, the frame 1 corresponding to the upper roller 47 and the lower roller 48 is provided with a corresponding upper cutting device guide rail 71 and a lower cutting device guide rail 72, and the horizontal moving knife 42 and the vertical moving knife 43 are arranged on the compression cutting welded body 45, as shown in FIG. Fig. 9 The driving device controls the compression and cutting welded body 45 with the horizontal moving knife 42 and the vertical moving knife 43 to move back and forth, so that the straw or forage grass entering the baling chamber is squeezed and cut at the same time. Under the shearing action of the vertical moving knife and the vertical fixed knife 81 arranged longitudinally in the middle, the cut forage grass or straw is divided into left and right parts by the baling plate 50, so as to obtain double grass pieces 230, as shown in FIG. Fig.13 shown.

[0074] In order to make the grass and straw enter the baling chamber better, Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, the conveying and feeding device 2 includes a connecting tube 21, a rocker 22, a left crank 23, a right crank 24 and a plurality of feeding forks 25. The left crank 23 and the right crank 24 are fixedly connected to the two ends of the connecting tube 21 respectively, and the feeding forks 25 are fixed on the connecting tube 21 at intervals; the rocker 22 includes a first rocker 221 and a second rocker 222. One end of the first rocker 221 is connected to one end of the second rocker 222 through a bearing 223. The other end of the first rocker 221 is fixedly connected to one end of the connecting tube 21 and is located on the inner side of the right crank 24. The other end of the second rocker 222 is connected to the power output by the driving device 80 to form a crank rocker mechanism. The feeding forks 25 are in a herringbone shape. Figure 2 As shown, the left crank 23 end is hinged to the left side of the frame 1 through a seat bearing 180, the right crank 24 end is hinged to the right side of the frame 1 through a seat bearing 180, and the rear end of the rocker 22 is hinged to the right side of the frame 1 through an outer spherical bearing 190. The feeding fork 25 includes a detachable feeding fork 251 and a welded feeding fork 252. The detachable feeding fork 251 is arranged near the remote control rod 22, and includes a feeding fork seat 2511 and a herringbone fork 2512. The feeding fork seat 2511 and the welded feeding fork 252 are respectively welded and fixed to the connecting pipe 21, and the herringbone fork 2512 is fixedly connected to the feeding fork seat 2511 through a fixing member (screw). Two detachable feeding forks are provided in the figure, and five welded feeding forks are provided.

[0075] In order to make the density of the double-outlet bale pieces more uniform and adjust the density in real time, as a further preferred embodiment of the present invention, Figure 1 and Fig.14 As shown, the present invention further provides a density adjustment device 10 at the rear of the baling chamber 5, which includes a lower crossbeam 101, an upper crossbeam 102, a crank screw 103 and a density adjustment mechanism 104. The lower crossbeam 101 is fixed at the bottom end of the baling chamber 5 and extends on both sides thereof. The upper crossbeam 102 is arranged at the top of the baling chamber 5 and extends on both sides thereof. The density adjustment mechanism 104 is respectively fixed on the lower crossbeam 101 extending on both sides of the baling chamber 5. The density adjustment mechanism 104 is a spring-type adjustment mechanism. The crank screw 103 passes through both ends of the upper crossbeam 102 and is connected to the upper end of the density adjustment mechanism 104. Under the action of the spring-type adjustment mechanisms on both sides, the compaction degree of the straw and forage entering the baling chamber 5 can be adjusted adaptively, thereby making the density of the bale pieces consistent.

[0076] The density adjustment mechanism 104 used includes an upper pull-up seat 1041, a lower pull-down seat 1042, and two pressure springs 1043 arranged in parallel between the upper pull-up seat 1041 and the lower pull-down seat 1042. The upper and lower ends of the two pressure springs 1043 are fixedly connected to the upper pull-up seat 1041 and the lower pull-down seat 1042, respectively. The middle part of the upper pull-up seat 1041 is also provided with an adjustment nut 1044 that is rotatably connected thereto. When the two pressure springs are under different elastic forces, the adjustment nut rotates. The present invention sets the rotation axis of the adjustment nut 1044 perpendicular to the reciprocating motion direction of the compression and cutting device 4. The adjustment nut 1044 is connected to the lower end of the crank screw 103, and the lower pull-down seat 1042 is fixedly connected to the end of the lower crossbeam 101.

[0077] like Figure 1 and Fig.12 As shown, in order to better protect the needle device 6 and prevent the needle device 6 from being broken by the compression and cutting device 4, the present invention further provides a needle protection device 20 on the picking baler. The needle protection device 20 includes a first tie rod 201, a threaded rod 202 and a second tie rod 203 which are connected in sequence. The two ends of the threaded rod 202 are respectively connected to the first tie rod 201 and the second tie rod 20. The free end of the first tie rod 201 is provided with a joint bearing 204. The free end of the second tie rod 203 is formed with a long slot hole 203a. The joint bearing 204 is fixed to a cam 30 through a rotating shaft. The cam 30 is installed at one end of the output shaft of the driving device 80. One end of the needle device 6 is arranged in the long slot hole 203a through the needle bearing 40 so that it slides along the long slot hole 203a. The other end of the needle device 6 can swing around the hinge point of the frame 1 within a fixed angle to form a crank slide mechanism with the end of the needle bearing 40.

[0078] The present invention is a machine tool used in conjunction with a tractor. When working, the tractor traction plate is connected to the front end of the traction frame 130, and the tractor power output shaft is connected to the transmission shaft 60.

[0079] During operation, the tractor pulls the implement forward, the power of the tractor power output shaft is transmitted to the flywheel 70 through the transmission shaft 60, and then transmitted to various moving parts through the gear box 3, the height of the pick-up 160 is adjusted by the pick-up lifting device 150, when the tractor moves forward, the pick-up 160 picks up the grass strips laid on the ground, the right spiral conveyor 200 and the left spiral conveyor 210 convey the grass or crop straw to the feeding inlet of the frame 1, the conveying feeding device 2 conveys the grass or crop straw at the feeding inlet of the frame 1 to the baling chamber 5, and the grass in the baling chamber 5 is compressed and cut The horizontal moving knife 42 of the cutting device 4 and the vertical knife 81 on the frame cut the grass or crop straw and compress it into a single grass piece 220. The vertical moving knife 43 on the compression and cutting device 4 slides on the vertical moving knife track device 9, and cuts the single grass piece 220 into two single grass pieces, that is, double grass pieces 230, with the vertical knife device 8, and separates the double grass pieces 230 through the bundling plate 50. Under the reciprocating action of the compression and cutting device 4, the double grass pieces 230 of grass or crop straw are compressed into square bundles. The upper cutting device track 71 and the lower cutting device track 72 ensure compression through the lower roller 48 and the upper roller 47. The upper and lower positions of the cutting device 4 are adjusted, and the side rollers 49 on the side of the upper cutting device track 71 ensure the left and right positions of the compression cutting device 4, so that the compression cutting device 4 moves like a crank slider. The needle protection device 20, the driving device 80, the compression cutting device 4, the rope knotting device 100 and the needle device 6 have a certain movement relationship. If the movement relationship changes, the needle protection device 20 pulls the needle device 6 out of the baling chamber 5 to prevent the needle device 6 from being broken by the compression cutting device 4. When the bale length reaches the length set by the bale length adjustment device 110, the rope knotting device 100 is tightened. The knot device 100 and the baling needle device 6 start to work and tie the baling ropes on the two bales. The bale density adjustment device 10 has the function of adaptively adjusting the bale density. With the continuous feeding of grass strips, the two tied bales continue to move backwards. Finally, the bale placing device 120 first drops one bale steadily to the ground, and the other bale drops to the ground steadily later, so that two bales are discharged at one time. According to user requirements, the vertical moving knife 43, the vertical moving knife track device 9, the vertical fixed knife device 8 and the baling plate 50 on the compression and cutting device 4 can be removed to discharge one large bale at a time.

[0080] Anything not described in the present invention is applicable to the prior art.

[0081] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A small-sized square straw bale double-outlet picking-up baler, comprising a frame (1) and a conveying and feeding device (2), a driving device (80), a gear box (3), a compression and cutting device (4), a baling chamber (5) and a baling needle device (6) arranged on the frame (1), wherein the conveying and feeding device (2) is arranged near the inlet end of the baling chamber (5), the driving device (80) and the gear box (3) are arranged at the front end of the baling chamber (5), the baling needle device (6) is located at the rear lower part of the frame (1), a cutting device guide rail (7) for limiting the left and right position of the compression and cutting device (4) is provided on the frame (1), the compression and cutting device (4) is slidably arranged between the baling chamber (5) and the gear box (3) along the cutting device guide rail (7), and the output shaft of the gear box (3) is connected to the crank (41) of the compression and cutting device (4) for controlling the compression and cutting device (4) to move back and forth, characterized in that: A row of horizontal moving knives (42) is provided on the lower side of the rear end surface of the compression and cutting device (4), and a vertical moving knife (43) is also provided at the middle position of the rear end surface of the compression and cutting device (4). A vertical fixed knife device (8) and a baling plate (50) located behind the vertical fixed knife device (8) are also provided on the inner side of the baling chamber (5). When the compression and cutting device (4) is controlled to make reciprocating motion, the vertical moving knife (43) on the compression and cutting device (4) and the vertical fixed knife device (8) in the baling chamber (5) form a shearing effect, which is used for synchronously cutting the forage grass or crop straw horizontally and vertically, and compressing the cut forage grass or crop straw into square bales.

2. The small square straw bale double-outlet picking-up baler according to claim 1 is characterized in that: The vertical knife device (8) comprises a vertical knife (81) and a vertical knife seat plate (82); the vertical knife seat plate (82) is fixedly connected to the frame (1); and the vertical knife (81) and the vertical knife seat plate (82) are fixedly connected.

3. The small square straw bale double-outlet picking-up baler according to claim 1, characterized in that: The inner side of the baling chamber (5) is also provided with a horizontally arranged vertical moving knife track device (9) fixedly connected to the frame (1). The vertical moving knife track device (9) is arranged above the compression and cutting device (4), and comprises a vertical moving knife track (91) arranged along the moving direction of the compression and cutting device (4), and a vertical moving knife track seat plate (92) fixedly connected to the frame (1). The vertical moving knife track seat plate (92) is arranged vertically with the vertical moving knife track (91). When the compression and cutting device (4) is controlled to reciprocate, the vertical moving knife (43) reciprocates along the vertical moving knife track (91).

4. The small square straw bale double-outlet picking-up baler according to any one of claims 1 to 3, characterized in that: The compression and cutting device (4) further comprises a connecting rod (44) and a compression and cutting welded body (45), the two ends of the connecting rod (44) being connected to the crank (41) and the compression and cutting welded body (45) respectively through spherical roller bearings (46), the two side surfaces of the compression and cutting welded body (45) being respectively provided with an upper roller (47) and a lower roller (48), the frame (1) corresponding to the upper roller (47) and the lower roller (48) being respectively provided with a corresponding upper cutting device guide rail (71) and a lower cutting device guide rail (72), and the horizontal movable knife (42) and the vertical movable knife (43) being arranged on the compression and cutting welded body (45).

5. The small square straw bale double-outlet picking-up baler according to claim 4, characterized in that: The conveying and feeding device (2) comprises a connecting tube (21), a rocker (22), a left crank (23), a right crank (24) and a plurality of feeding forks (25), wherein the left crank (23) and the right crank (24) are respectively fixedly connected to the two ends of the connecting tube (21), and the feeding forks (25) are fixedly connected to the connecting tube (21) at intervals; the rocker (22) comprises a first rocker (221) and a second rocker (222), wherein one end of the first rocker (221) is connected to one end of the second rocker (222) via a bearing (223), the other end of the first rocker (221) is fixedly connected to one end of the connecting tube (21) and is located on the inner side of one crank thereof, the other end of the second rocker (222) is connected to the power output by the driving device (80) to form a crank rocker mechanism, and the feeding forks (25) are in a herringbone shape.

6. The small square straw bale double-outlet picking-up baler according to claim 5, characterized in that: The feeding fork (25) comprises a detachable feeding fork (251) and a welding feeding fork (252). The detachable feeding fork (251) is arranged close to the remote control rod (22), and comprises a feeding fork seat (2511) and a herringbone shift fork (2512). The feeding fork seat (2511) and the welding feeding fork (252) are respectively welded and fixed to the connecting pipe (21), and the herringbone shift fork (2512) is fixedly connected to the feeding fork seat (2511) via a fixing member.

7. The small square bale double-outlet picking-up baler according to claim 1, characterized in that: The rear part of the baling chamber (5) is also provided with a density adjustment device (10), which includes a lower crossbeam (101), an upper crossbeam (102), a crank screw (103) and a density adjustment mechanism (104). The lower crossbeam (101) is fixed to the bottom end of the baling chamber (5) and extends out of both sides thereof. The upper crossbeam (102) is arranged at the top end of the baling chamber (5) and extends out of both sides thereof. The density adjustment mechanism (104) is respectively fixed on the lower crossbeam (101) extending out of both sides of the baling chamber (5). The density adjustment mechanism (104) is a spring-type adjustment mechanism. The crank screw (103) passes through both ends of the upper crossbeam (102) and is connected to the upper end of the density adjustment mechanism (104).

8. The small square bale double-outlet picking-up baler according to claim 7, characterized in that: The density adjustment mechanism (104) includes an upper pull-up seat (1041), a lower pull-down seat (1042) and two pressure springs (1043) arranged in parallel between the upper pull-up seat (1041) and the lower pull-down seat (1042), the upper and lower ends of the two pressure springs (1043) are respectively fixedly connected to the upper pull-up seat (1041) and the lower pull-down seat (1042), the middle part of the upper pull-up seat (1041) is also provided with an adjustment nut (1044) which is rotatably connected thereto, the adjustment nut (1044) is connected to the lower end of the crank screw (103), and the lower pull-down seat (1042) is fixedly connected to the end of the lower cross beam (101).

9. The small square straw bale double-outlet picking-up baler according to claim 8, characterized in that: The rotating shaft of the adjusting nut (1044) is arranged perpendicular to the reciprocating direction of the compression and cutting device (4).

10. The small square bale double-outlet picking-up baler according to claim 1, characterized in that: The pick-up baler further comprises a baling needle protection device (20), the baling needle protection device (20) comprising a first tie rod (201), a threaded rod (202) and a second tie rod (203) which are connected in sequence, the two ends of the threaded rod (202) being respectively connected to the first tie rod (201) and the second tie rod (203), the free end of the first tie rod (201) being provided with a joint bearing (204), the free end of the second tie rod (203) being formed with a long slot hole (203a), the joint bearing (204) being fixed on a cam (30) via a rotating shaft, the cam (30) being mounted on one end of an output shaft of the driving device (80), one end of the baling needle device (6) being arranged in the long slot hole (203a) via a baling needle bearing (40) so as to slide along the long slot hole (203a), and the other end of the baling needle device (6) being able to swing within a fixed angle around a hinge point of the frame (1).

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